US20190078846A1 - Parallel-connected condenser and cooling device using the same - Google Patents
Parallel-connected condenser and cooling device using the sameDownload PDFInfo
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- US20190078846A1 US20190078846A1US15/794,260US201715794260AUS2019078846A1US 20190078846 A1US20190078846 A1US 20190078846A1US 201715794260 AUS201715794260 AUS 201715794260AUS 2019078846 A1US2019078846 A1US 2019078846A1
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- coolant
- primary
- condenser tube
- assembly
- evaporator
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- 238000001816coolingMethods0.000titleclaimsabstractdescription71
- 239000002826coolantSubstances0.000claimsabstractdescription167
- 230000002093peripheral effectEffects0.000claimsdescription12
- 238000001704evaporationMethods0.000claimsdescription10
- 230000008020evaporationEffects0.000claimsdescription10
- 239000007788liquidSubstances0.000description9
- 230000000694effectsEffects0.000description5
- 230000017525heat dissipationEffects0.000description4
- 238000010521absorption reactionMethods0.000description2
- 230000000630rising effectEffects0.000description2
- 230000001788irregularEffects0.000description1
Images
Classifications
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
- F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
- F28D1/0435—Combination of units extending one behind the other
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0243—Header boxes having a circular cross-section
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
- H01L23/427—Cooling by change of state, e.g. use of heat pipes
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
- F28D2021/0031—Radiators for recooling a coolant of cooling systems
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F2009/0285—Other particular headers or end plates
- F28F2009/0297—Side headers, e.g. for radiators having conduits laterally connected to common header
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/367—Cooling facilitated by shape of device
- H01L23/3672—Foil-like cooling fins or heat sinks
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
- H01L23/467—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing gases, e.g. air
Definitions
- the present inventionrelates to a parallel-connected condenser and a cooling device using the same and, more particularly, to a parallel-connected condenser with enhanced cooling performance and a cooling device using the same.
- heatis generated by electronic devices when the electronic devices are operating.
- a cooling deviceis installed at a heat-generating source of the electronic device to absorb heat generated by the heat-generating source to achieve a cooling purpose.
- such cooling deviceincludes an evaporator, a condenser and multiple coolant pipes connected with the evaporator and the condenser to form a closed circulation loop with coolant filled inside the circulation loop.
- the coolant in the evaporatorabsorbs heat generated by an electronic device and is evaporated from a liquid state to a gaseous state.
- the gaseous coolantflows to the condenser through corresponding coolant pipes and flows through the condenser for heat dissipation, such that the gaseous coolant is converted back to the liquid state.
- the liquid coolantthen returns to the evaporator to resume heat absorption through corresponding coolant pipes.
- the flow rate of the gaseous coolantmay be limited. Therefore, when the coolant inside the evaporator is heated and the amount of the gaseous coolant is beyond a cooling capacity that the condenser can provide, the resultant cooling efficacy of the cooling device fails to be satisfactory.
- An objective of the present inventionis to provide a parallel-connected condenser and a cooling device using the same to provide enhanced flow rate of coolant passing through the parallel-connected condenser and a satisfactory cooling performance of the cooling device.
- the parallel-connected condenserincludes a primary condenser assembly and at least one auxiliary condenser assembly.
- the primary condenser assemblyhas a first primary condenser tube, a second primary condenser tube and a primary heat-dissipating mechanism.
- the second primary condenser tubeis mounted to be spaced apart from the first primary condenser tube.
- the primary heat-dissipating mechanismis mounted between the first primary condenser tube and the second primary condenser tube.
- the at least one auxiliary condenser assemblyis parallelly connected with the primary condenser assembly.
- Each auxiliary condenser assemblyhas a first auxiliary condenser tube, a second auxiliary condenser tube, and an auxiliary heat-dissipating mechanism.
- the first auxiliary condenser tubecommunicates with the first primary condenser tube.
- the second auxiliary condenser tubeis mounted to be spaced apart from the first auxiliary condenser tube, and communicates with the second primary condenser tube.
- the auxiliary heat-dissipating mechanismis mounted between the first auxiliary condenser tube and the second auxiliary condenser tube.
- the cooling deviceincludes the foregoing parallel-connected condenser and an evaporator assembly.
- the evaporator assemblyincludes an evaporator, a coolant input pipe and a coolant output pipe.
- the evaporatorhas a case, an evaporation chamber, a coolant input pipe and a coolant output pipe.
- the evaporation chamberis defined in the case.
- the heat-conducting baseis formed on a bottom of the case.
- the coolant input pipehas two ends respectively connected to a top of the case of the evaporator and the first primary condenser tube of the primary condenser assembly.
- the coolant output pipehas two ends of the coolant output pipe respectively connected to a sidewall of the case of the evaporator and the second primary condenser tube of the primary condenser assembly.
- the parallel-connected condenser and the evaporator assemblyform a closed coolant circulation loop with coolant filled therein.
- the parallel-connected condensercan be applied to a regular cooling device or the foregoing cooling device.
- the cooling effect on objects or devicescan be enhanced.
- the evaporatorcan be mounted on a heat-generating source of the electronic device.
- the pressure of the coolant inside the closed coolant circulation loopincreases with a rising amount of the gaseous coolant.
- the amount of the gaseous coolantincreases with the temperature rise of the heat-generating source of the electronic device.
- the temperature of the heat-generating sourcerises and the amount of the gaseous coolant is less than a flow rate of the gaseous coolant that the primary condenser assembly can provide
- the gaseous coolantdirectly passes through the primary condenser assembly.
- the amount of the gaseous coolantis more than the flow rate of the gaseous coolant that the primary condenser assembly can handle, high pressure of the gaseous coolant forces a part of the gaseous coolant to enter the auxiliary condenser assembly.
- the first primary condenser tube of the primary condenser assemblyhas a coolant inlet and two coolant outlets.
- the coolant inletis formed through an upper portion of a peripheral wall of the first primary condenser tube
- the two coolant outletsare respectively formed through lower portions of the peripheral wall of the first primary condenser tube and the second primary condenser tube.
- the two ends of the coolant input pipeare respectively connected to the top of the case of the evaporator and the coolant inlet of the primary condenser assembly.
- the two ends of the coolant output pipeare respectively connected to the sidewall of the case of the evaporator and the coolant outlet of the second primary condenser tube of the primary condenser assembly.
- the evaporator assemblyhas a quick return pipe with two ends respectively connected to another sidewall of the case of the evaporator and the coolant outlet of the first primary condenser tube of the primary condenser assembly.
- FIG. 1is a perspective view of a parallel-connected condenser in accordance with the present invention
- FIG. 2is an enlarged top view of the parallel-connected condenser in FIG. 1 ;
- FIG. 3is an enlarged side view of the parallel-connected condenser in FIG. 1 ;
- FIG. 4is a perspective view of a cooling device using the parallel-connected condenser in FIG. 1
- FIG. 5is an operational enlarged side view of the cooling device in FIG. 4 ;
- FIG. 6is an operational perspective view of the cooling device in FIG. 4 ;
- FIG. 7is a first operational enlarged top view of the cooling device in FIG. 4 ;
- FIG. 8is a second operational enlarged top view of the cooling device in FIG. 4 .
- a parallel-connected condenserin accordance with the present invention includes a primary condenser assembly 10 and an auxiliary condenser assembly 20 .
- the primary condenser assembly 10has a first primary condenser tube 11 , a second primary condenser tube 12 and a primary heat-dissipating mechanism 13 .
- the first primary condenser tube 11 and the second primary condenser tube 12are vertically mounted and are spaced apart from each other.
- the primary heat-dissipating mechanism 13is horizontally mounted between the first primary condenser tube 11 and the second primary condenser tube 12 .
- the primary heat-dissipating mechanism 13includes multiple primary cooling flat ducts 14 and multiple primary heat sinks 15 .
- the multiple primary cooling flat ducts 14are horizontally connected between the first primary condenser tube 11 and the primary second condenser tube 12 and are spaced apart from one another. Adjacent two of the multiple primary heat sinks 15 are separated by a corresponding primary cooling flat duct 14 .
- Each primary heat sink 15conductively contacts a periphery of at least one primary cooling flat duct 14 and takes
- the auxiliary condenser assembly 20is parallelly connected with the primary condenser assembly 10 and has a first auxiliary condenser tube 21 , a second auxiliary condenser tube 22 and an auxiliary heat-dissipating mechanism 23 .
- the first auxiliary condenser tube 21 and the second auxiliary condenser tube 22are vertically mounted and are spaced apart from each other.
- the auxiliary heat-dissipating mechanism 23is horizontally mounted between the first auxiliary condenser tube 21 and the second auxiliary condenser tube 22 .
- the auxiliary heat-dissipating mechanism 23includes multiple auxiliary cooling flat ducts 24 and multiple auxiliary heat sinks 25 .
- the multiple auxiliary cooling flat ducts 24are horizontally connected between the first auxiliary condenser tube 21 and the second auxiliary condenser tube 22 and are spaced apart from one another. Adjacent two of the multiple auxiliary heat sinks 25 are separated by a corresponding auxiliary cooling flat duct 24 . Each auxiliary heat sink 25 conductively contacts a periphery of at least one auxiliary cooling flat duct 24 and takes a wavy form.
- the first auxiliary condenser tube 21 of the auxiliary condenser assembly 20has multiple first flow paths 26 formed inside the first auxiliary condenser tube 21 and directly or indirectly communicating with the first primary condenser tube 11 .
- the second auxiliary condenser tube 22 of the auxiliary condenser assembly 20has multiple second flow paths 27 formed inside the second auxiliary condenser tube 22 and directly or indirectly communicating with the second primary condenser tube 12 .
- a cooling device in accordance with the present inventionincludes the foregoing parallel-connected condenser and an evaporator assembly 30 .
- the evaporator assembly 30includes an evaporator 31 , a coolant input pipe 32 and a coolant output pipe 33 .
- the evaporator 31has a case 35 , an evaporation chamber 34 and a heat-conducting base 36 .
- the evaporation chamber 34is defined inside the case 35 .
- the heat-conducting base 36is formed on a bottom of the case 35 .
- Two ends of the coolant input pipe 32are respectively connected to a top of the case 35 of the evaporator 31 and the first primary condenser tube 11 of the primary condenser assembly 10 , and two ends of the coolant output pipe 33 are respectively connected to a sidewall of the case 35 of the evaporator 31 and the second primary condenser tube 12 of the primary condenser assembly 10 , such that the parallel-connected condenser and the evaporator assembly 30 form a closed coolant circulation loop with coolant 50 filled therein.
- the coolant input pipe 32is greater than the coolant output pipe 33 in diameter.
- the first primary condenser tube 11 of the primary condenser assembly 10has a coolant inlet 16 and two coolant outlets 17 , 18 .
- the coolant inlet 16is formed through an upper portion of a peripheral wall of the first primary condenser tube 11 .
- the two coolant outlets 17 , 18are respectively formed through lower portions of the peripheral wall of the first primary condenser tube 11 and the second primary condenser tube 12 .
- the two ends of the coolant input pipe 32are respectively connected to the top of the case 35 of the evaporator 31 and the coolant inlet 16 of the primary condenser assembly 10 .
- the two ends of the coolant output pipe 33are respectively connected to the sidewall of the case 35 of the evaporator 31 and the coolant outlet 18 of the second primary condenser tube 12 of the primary condenser assembly 10 .
- the evaporator assembly 30has a quick return pipe 37 with two ends thereof respectively connected to another sidewall of the case 35 of the evaporator 31 and the coolant outlet 17 of the first primary condenser tube 11 of the primary condenser assembly 10 .
- the coolant input pipe 32is greater than the coolant output pipe 33 and the quick return pipe 37 in diameter.
- the parallel-connected condensercan be applied to a regular cooling device or the foregoing cooling device 30 .
- the cooling effect on objects or devicescan be enhanced.
- the evaporator 31can be mounted on a heat-generating source 40 of the electronic device.
- heat generated by the heat-generating source 40is thermally transferred to the coolant 50 inside the evaporation chamber 34 through the heat-conducting base 36 , and the coolant 50 inside the evaporation chamber 34 is evaporated to become gaseous coolant 50 . Due to the concept of heat convection that hot air naturally rises, the gaseous coolant flows in the coolant input pipe 32 connected with the top of the case 35 .
- the gaseous coolant 50is cooled down to be liquid coolant 50 after passing through the multiple primary cooling flat ducts 14 of the primary cooling mechanism 13 , and the liquid coolant 50 enters the second primary condenser tube 12 and returns to the evaporator 31 through the coolant output pipe 33 .
- the pressure of the coolant 50 inside the closed coolant circulation loopincreases with a rising amount of the gaseous coolant.
- the amount of the gaseous coolantincreases with the temperature rise of the heat-generating source 40 of the electronic device.
- the pressure of the coolant 50 inside the closed coolant circulation loopwill rise, and at the moment the gaseous coolant 50 can be divided to separately flow through the primary condenser assembly 10 and the auxiliary condenser assembly 20 to achieve the effect of cooling and liquefaction.
- the liquefied coolant 50then gathers in the second primary condenser tube 12 and returns to the evaporator 31 through the coolant output pipe 33 .
- the gaseous coolant 50When the gaseous coolant 50 enters the first primary condenser tube 11 through the coolant input pipe 32 , a part of the gaseous coolant 50 is liquefied into liquid coolant 50 as being distal to the heat-generating source 40 . After entering the first primary condenser tube 11 , the liquid coolant 50 then flows down to a bottom portion inside the first primary condenser tube 11 and directly returns to the evaporator 31 through the quick return pipe 37 . The remaining part of the gaseous coolant 50 sequentially passes through the primary cooling mechanism 13 and the second primary condenser tube 12 and then returns to the evaporator 31 through the coolant output pipe 33 .
- the cooling device in accordance with the present inventionis collaborated with the primary condenser assembly 10 and the auxiliary condenser assembly 20 of the parallel-connected condenser to divide, cool and liquefy the flow of the gaseous coolant 50 to effectively raise cooling and liquefaction efficiency of the cooling device.
- the liquid coolant 50 not liquefied through the primary heat-dissipating mechanism 13enters the first primary condenser tube 11 and directly returns to the evaporator 31 through the quick return pipe 37 for heat absorption.
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- Condensed Matter Physics & Semiconductors (AREA)
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- Computer Hardware Design (AREA)
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Abstract
Description
- The present invention relates to a parallel-connected condenser and a cooling device using the same and, more particularly, to a parallel-connected condenser with enhanced cooling performance and a cooling device using the same.
- As we know, heat is generated by electronic devices when the electronic devices are operating. To lower the chance of irregular operation or damage to an electronic device arising from an overheat condition, by and large a cooling device is installed at a heat-generating source of the electronic device to absorb heat generated by the heat-generating source to achieve a cooling purpose.
- Conventionally, such cooling device includes an evaporator, a condenser and multiple coolant pipes connected with the evaporator and the condenser to form a closed circulation loop with coolant filled inside the circulation loop. Thus, the coolant in the evaporator absorbs heat generated by an electronic device and is evaporated from a liquid state to a gaseous state. The gaseous coolant flows to the condenser through corresponding coolant pipes and flows through the condenser for heat dissipation, such that the gaseous coolant is converted back to the liquid state. The liquid coolant then returns to the evaporator to resume heat absorption through corresponding coolant pipes. By virtue of the phase change between the liquid state and the gaseous state of the coolant for heat dissipation, the heat-generating source of the electronic device can be cooled down.
- As the conventional cooling device only has one condenser, the flow rate of the gaseous coolant may be limited. Therefore, when the coolant inside the evaporator is heated and the amount of the gaseous coolant is beyond a cooling capacity that the condenser can provide, the resultant cooling efficacy of the cooling device fails to be satisfactory.
- An objective of the present invention is to provide a parallel-connected condenser and a cooling device using the same to provide enhanced flow rate of coolant passing through the parallel-connected condenser and a satisfactory cooling performance of the cooling device.
- To achieve the foregoing objective, the parallel-connected condenser includes a primary condenser assembly and at least one auxiliary condenser assembly.
- The primary condenser assembly has a first primary condenser tube, a second primary condenser tube and a primary heat-dissipating mechanism.
- The second primary condenser tube is mounted to be spaced apart from the first primary condenser tube.
- The primary heat-dissipating mechanism is mounted between the first primary condenser tube and the second primary condenser tube.
- The at least one auxiliary condenser assembly is parallelly connected with the primary condenser assembly. Each auxiliary condenser assembly has a first auxiliary condenser tube, a second auxiliary condenser tube, and an auxiliary heat-dissipating mechanism.
- The first auxiliary condenser tube communicates with the first primary condenser tube.
- The second auxiliary condenser tube is mounted to be spaced apart from the first auxiliary condenser tube, and communicates with the second primary condenser tube.
- The auxiliary heat-dissipating mechanism is mounted between the first auxiliary condenser tube and the second auxiliary condenser tube.
- To achieve the foregoing objective, the cooling device includes the foregoing parallel-connected condenser and an evaporator assembly.
- The evaporator assembly includes an evaporator, a coolant input pipe and a coolant output pipe.
- The evaporator has a case, an evaporation chamber, a coolant input pipe and a coolant output pipe.
- The evaporation chamber is defined in the case.
- The heat-conducting base is formed on a bottom of the case.
- The coolant input pipe has two ends respectively connected to a top of the case of the evaporator and the first primary condenser tube of the primary condenser assembly.
- The coolant output pipe has two ends of the coolant output pipe respectively connected to a sidewall of the case of the evaporator and the second primary condenser tube of the primary condenser assembly.
- The parallel-connected condenser and the evaporator assembly form a closed coolant circulation loop with coolant filled therein.
- The parallel-connected condenser can be applied to a regular cooling device or the foregoing cooling device. By separate paths for coolant to flow through the primary condenser assembly and the auxiliary condenser assembly of the parallel-connected condenser for heat dissipation, the cooling effect on objects or devices can be enhanced. Given an electronic device as an example, the evaporator can be mounted on a heat-generating source of the electronic device.
- The pressure of the coolant inside the closed coolant circulation loop increases with a rising amount of the gaseous coolant. The amount of the gaseous coolant increases with the temperature rise of the heat-generating source of the electronic device. When the temperature of the heat-generating source rises and the amount of the gaseous coolant is less than a flow rate of the gaseous coolant that the primary condenser assembly can provide, the gaseous coolant directly passes through the primary condenser assembly. When the amount of the gaseous coolant is more than the flow rate of the gaseous coolant that the primary condenser assembly can handle, high pressure of the gaseous coolant forces a part of the gaseous coolant to enter the auxiliary condenser assembly. By way of separate flow paths and simultaneous cooling, the liquefaction efficiency of the cooling device is increased.
- Moreover, the first primary condenser tube of the primary condenser assembly has a coolant inlet and two coolant outlets. The coolant inlet is formed through an upper portion of a peripheral wall of the first primary condenser tube, and the two coolant outlets are respectively formed through lower portions of the peripheral wall of the first primary condenser tube and the second primary condenser tube. The two ends of the coolant input pipe are respectively connected to the top of the case of the evaporator and the coolant inlet of the primary condenser assembly. The two ends of the coolant output pipe are respectively connected to the sidewall of the case of the evaporator and the coolant outlet of the second primary condenser tube of the primary condenser assembly. The evaporator assembly has a quick return pipe with two ends respectively connected to another sidewall of the case of the evaporator and the coolant outlet of the first primary condenser tube of the primary condenser assembly. When the gaseous coolant enters the first primary condenser tube of the primary condenser assembly through the coolant input tube, liquefied coolant flows down to a bottom portion inside the first primary condenser tube and directly returns to the evaporator through the quick return pipe. The remaining part of the gaseous coolant passes through the primary cooling mechanism and the liquefied coolant flows to the second primary condenser tube and then returns to the evaporator through the coolant output pipe. By utilizing coolant capable of flowing through different paths and changing phase upon circulation, enhanced cooling effect of the cooling device can be attained.
- Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
FIG. 1 is a perspective view of a parallel-connected condenser in accordance with the present invention;FIG. 2 is an enlarged top view of the parallel-connected condenser inFIG. 1 ;FIG. 3 is an enlarged side view of the parallel-connected condenser inFIG. 1 ;FIG. 4 is a perspective view of a cooling device using the parallel-connected condenser inFIG. 1 FIG. 5 is an operational enlarged side view of the cooling device inFIG. 4 ;FIG. 6 is an operational perspective view of the cooling device inFIG. 4 ;FIG. 7 is a first operational enlarged top view of the cooling device inFIG. 4 ; andFIG. 8 is a second operational enlarged top view of the cooling device inFIG. 4 .- With reference to
FIGS. 1 to 3 , a parallel-connected condenser in accordance with the present invention includes aprimary condenser assembly 10 and anauxiliary condenser assembly 20. - The
primary condenser assembly 10 has a firstprimary condenser tube 11, a secondprimary condenser tube 12 and a primary heat-dissipating mechanism 13. The firstprimary condenser tube 11 and the secondprimary condenser tube 12 are vertically mounted and are spaced apart from each other. The primary heat-dissipating mechanism 13 is horizontally mounted between the firstprimary condenser tube 11 and the secondprimary condenser tube 12. The primary heat-dissipating mechanism 13 includes multiple primary coolingflat ducts 14 and multipleprimary heat sinks 15. The multiple primary coolingflat ducts 14 are horizontally connected between the firstprimary condenser tube 11 and the primarysecond condenser tube 12 and are spaced apart from one another. Adjacent two of the multipleprimary heat sinks 15 are separated by a corresponding primary coolingflat duct 14. Eachprimary heat sink 15 conductively contacts a periphery of at least one primary coolingflat duct 14 and takes a wavy form. - The
auxiliary condenser assembly 20 is parallelly connected with theprimary condenser assembly 10 and has a firstauxiliary condenser tube 21, a secondauxiliary condenser tube 22 and an auxiliary heat-dissipatingmechanism 23. The firstauxiliary condenser tube 21 and the secondauxiliary condenser tube 22 are vertically mounted and are spaced apart from each other. The auxiliary heat-dissipatingmechanism 23 is horizontally mounted between the firstauxiliary condenser tube 21 and the secondauxiliary condenser tube 22. The auxiliary heat-dissipatingmechanism 23 includes multiple auxiliary coolingflat ducts 24 and multiple auxiliary heat sinks25. The multiple auxiliary coolingflat ducts 24 are horizontally connected between the firstauxiliary condenser tube 21 and the secondauxiliary condenser tube 22 and are spaced apart from one another. Adjacent two of the multipleauxiliary heat sinks 25 are separated by a corresponding auxiliary coolingflat duct 24. Eachauxiliary heat sink 25 conductively contacts a periphery of at least one auxiliary coolingflat duct 24 and takes a wavy form. - With further reference to
FIGS. 2 and 3 , the firstauxiliary condenser tube 21 of theauxiliary condenser assembly 20 has multiplefirst flow paths 26 formed inside the firstauxiliary condenser tube 21 and directly or indirectly communicating with the firstprimary condenser tube 11. The secondauxiliary condenser tube 22 of theauxiliary condenser assembly 20 has multiplesecond flow paths 27 formed inside the secondauxiliary condenser tube 22 and directly or indirectly communicating with the secondprimary condenser tube 12. - With reference to
FIGS. 4 and 5 , a cooling device in accordance with the present invention includes the foregoing parallel-connected condenser and anevaporator assembly 30. - The
evaporator assembly 30 includes anevaporator 31, acoolant input pipe 32 and acoolant output pipe 33. Theevaporator 31 has acase 35, anevaporation chamber 34 and a heat-conductingbase 36. Theevaporation chamber 34 is defined inside thecase 35. The heat-conductingbase 36 is formed on a bottom of thecase 35. Two ends of thecoolant input pipe 32 are respectively connected to a top of thecase 35 of theevaporator 31 and the firstprimary condenser tube 11 of theprimary condenser assembly 10, and two ends of thecoolant output pipe 33 are respectively connected to a sidewall of thecase 35 of theevaporator 31 and the secondprimary condenser tube 12 of theprimary condenser assembly 10, such that the parallel-connected condenser and theevaporator assembly 30 form a closed coolant circulation loop withcoolant 50 filled therein. Thecoolant input pipe 32 is greater than thecoolant output pipe 33 in diameter. - With further reference to
FIGS. 1 and 4 , the firstprimary condenser tube 11 of theprimary condenser assembly 10 has acoolant inlet 16 and twocoolant outlets coolant inlet 16 is formed through an upper portion of a peripheral wall of the firstprimary condenser tube 11. The twocoolant outlets primary condenser tube 11 and the secondprimary condenser tube 12. The two ends of thecoolant input pipe 32 are respectively connected to the top of thecase 35 of theevaporator 31 and thecoolant inlet 16 of theprimary condenser assembly 10. The two ends of thecoolant output pipe 33 are respectively connected to the sidewall of thecase 35 of theevaporator 31 and thecoolant outlet 18 of the secondprimary condenser tube 12 of theprimary condenser assembly 10. Theevaporator assembly 30 has aquick return pipe 37 with two ends thereof respectively connected to another sidewall of thecase 35 of theevaporator 31 and thecoolant outlet 17 of the firstprimary condenser tube 11 of theprimary condenser assembly 10. Thecoolant input pipe 32 is greater than thecoolant output pipe 33 and thequick return pipe 37 in diameter. - With reference to
FIGS. 5 to 7 , the parallel-connected condenser can be applied to a regular cooling device or the foregoing coolingdevice 30. By separate paths forcoolant 50 to flow through theprimary condenser assembly 10 and theauxiliary condenser assembly 20 of the parallel-connected condenser for heat dissipation, the cooling effect on objects or devices can be enhanced. Given an electronic device as an example, theevaporator 31 can be mounted on a heat-generatingsource 40 of the electronic device. When the heat-generatingsource 40 of the electronic device generates heat and the temperature of the heat-generatingsource 40 rises, heat generated by the heat-generatingsource 40 is thermally transferred to thecoolant 50 inside theevaporation chamber 34 through the heat-conductingbase 36, and thecoolant 50 inside theevaporation chamber 34 is evaporated to becomegaseous coolant 50. Due to the concept of heat convection that hot air naturally rises, the gaseous coolant flows in thecoolant input pipe 32 connected with the top of thecase 35. Thegaseous coolant 50 is cooled down to beliquid coolant 50 after passing through the multiple primary coolingflat ducts 14 of theprimary cooling mechanism 13, and theliquid coolant 50 enters the secondprimary condenser tube 12 and returns to theevaporator 31 through thecoolant output pipe 33. - With reference to
FIGS. 5, 6 and 8 , the pressure of thecoolant 50 inside the closed coolant circulation loop increases with a rising amount of the gaseous coolant. Generally, the amount of the gaseous coolant increases with the temperature rise of the heat-generatingsource 40 of the electronic device. When the temperature of the heat-generatingsource 40 rises and the amount of thegaseous coolant 50 is more than a flow rate of thegaseous coolant 50 that the primary condenser assembly can handle, the pressure of thecoolant 50 inside the closed coolant circulation loop will rise, and at the moment thegaseous coolant 50 can be divided to separately flow through theprimary condenser assembly 10 and theauxiliary condenser assembly 20 to achieve the effect of cooling and liquefaction. The liquefiedcoolant 50 then gathers in the secondprimary condenser tube 12 and returns to theevaporator 31 through thecoolant output pipe 33. - When the
gaseous coolant 50 enters the firstprimary condenser tube 11 through thecoolant input pipe 32, a part of thegaseous coolant 50 is liquefied intoliquid coolant 50 as being distal to the heat-generatingsource 40. After entering the firstprimary condenser tube 11, theliquid coolant 50 then flows down to a bottom portion inside the firstprimary condenser tube 11 and directly returns to theevaporator 31 through thequick return pipe 37. The remaining part of thegaseous coolant 50 sequentially passes through theprimary cooling mechanism 13 and the secondprimary condenser tube 12 and then returns to theevaporator 31 through thecoolant output pipe 33. - In sum, the cooling device in accordance with the present invention is collaborated with the
primary condenser assembly 10 and theauxiliary condenser assembly 20 of the parallel-connected condenser to divide, cool and liquefy the flow of thegaseous coolant 50 to effectively raise cooling and liquefaction efficiency of the cooling device. Besides, theliquid coolant 50 not liquefied through the primary heat-dissipatingmechanism 13 enters the firstprimary condenser tube 11 and directly returns to theevaporator 31 through thequick return pipe 37 for heat absorption. By utilizing coolant capable of flowing through different paths and changing phase upon circulation, a high-performance cooling effect can be realized. - Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only. Changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims (20)
1. A parallel-connected condenser, comprising:
a primary condenser assembly having:
a first primary condenser tube;
a second primary condenser tube mounted to be spaced apart from the first primary condenser tube; and
a primary heat-dissipating mechanism mounted between the first primary condenser tube and the second primary condenser tube; and
at least one auxiliary condenser assembly parallelly connected with the primary condenser assembly, each of the at least one auxiliary condenser assembly having:
a first auxiliary condenser tube communicating with the first primary condenser tube;
a second auxiliary condenser tube mounted to be spaced apart from the first auxiliary condenser tube, and communicating with the second primary condenser tube; and
an auxiliary heat-dissipating mechanism mounted between the first auxiliary condenser tube and the second auxiliary condenser tube.
2. The parallel-connected condenser as claimed inclaim 1 , wherein
the primary heat-dissipating mechanism has:
multiple primary cooling flat ducts horizontally connected between the first primary condenser tube and the second primary condenser tube and spaced apart from one another; and
multiple primary heat sinks, wherein adjacent two of the multiple primary heat sinks are separated by a corresponding primary cooling flat duct, and each primary heat sink conductively contacts a periphery of at least one of the multiple primary cooling flat duct; and
the auxiliary heat-dissipating mechanism has:
multiple auxiliary cooling flat ducts horizontally connected between the first auxiliary condenser tube and the second auxiliary condenser tube and spaced apart from one another; and
multiple auxiliary heat sinks, wherein adjacent two of the multiple auxiliary heat sinks are separated by a corresponding auxiliary cooling flat duct, and each auxiliary heat sink conductively contacts a periphery of at least one of the multiple auxiliary cooling flat duct.
3. The parallel-connected condenser as claimed inclaim 2 , wherein the multiple primary heat sinks of the primary heat-dissipating mechanism and the multiple auxiliary heat sinks of the auxiliary heat-dissipating mechanism are wavy.
4. The parallel-connected condenser as claimed inclaim 1 , wherein the first auxiliary condenser tube of the auxiliary condenser assembly has multiple first flow paths formed inside the first auxiliary condenser tube and directly or indirectly communicating with the first primary condenser tube, and the second auxiliary condenser tube of the auxiliary condenser assembly has multiple second flow paths formed inside the second auxiliary condenser tube and directly or indirectly communicating with the second primary condenser tube.
5. The parallel-connected condenser as claimed inclaim 2 , wherein the first auxiliary condenser tube of the auxiliary condenser assembly has multiple first flow paths formed inside the first auxiliary condenser tube and directly or indirectly communicating with the first primary condenser tube, and the second auxiliary condenser tube of the auxiliary condenser assembly has multiple second flow paths formed inside the second auxiliary condenser tube and directly or indirectly communicating with the second primary condenser tube.
6. The parallel-connected condenser as claimed inclaim 3 , wherein the first auxiliary condenser tube of the auxiliary condenser assembly has multiple first flow paths formed inside the first auxiliary condenser tube and directly or indirectly communicating with the first primary condenser tube, and the second auxiliary condenser tube of the auxiliary condenser assembly has multiple second flow paths formed inside the second auxiliary condenser tube and directly or indirectly communicating with the second primary condenser tube.
7. A cooling device comprising:
the parallel-connected condenser as claimed inclaim 1 ; and
an evaporator assembly including:
an evaporator having:
a case;
an evaporation chamber defined in the case; and
a heat-conducting base formed on a bottom of the case;
a coolant input pipe with two ends respectively connected to a top of the case of the evaporator and the first primary condenser tube of the primary condenser assembly; and
a coolant output pipe with two ends of the coolant output pipe respectively connected to a sidewall of the case of the evaporator and the second primary condenser tube of the primary condenser assembly;
wherein the parallel-connected condenser and the evaporator assembly form a closed coolant circulation loop with coolant filled therein.
8. A cooling device comprising:
the parallel-connected condenser as claimed inclaim 2 ; and
an evaporator assembly including:
an evaporator having:
a case;
an evaporation chamber defined in the case; and
a heat-conducting base formed on a bottom of the case;
a coolant input pipe with two ends respectively connected to a top of the case of the evaporator and the first primary condenser tube of the primary condenser assembly; and
a coolant output pipe with two ends of the coolant output pipe respectively connected to a sidewall of the case of the evaporator and the second primary condenser tube of the primary condenser assembly;
wherein the parallel-connected condenser and the evaporator assembly form a closed coolant circulation loop with coolant filled therein.
9. A cooling device comprising:
the parallel-connected condenser as claimed inclaim 3 ; and
an evaporator assembly including:
an evaporator having:
a case;
an evaporation chamber defined in the case; and
a heat-conducting base formed on a bottom of the case;
a coolant input pipe with two ends respectively connected to a top of the case of the evaporator and the first primary condenser tube of the primary condenser assembly; and
a coolant output pipe with two ends of the coolant output pipe respectively connected to a sidewall of the case of the evaporator and the second primary condenser tube of the primary condenser assembly;
wherein the parallel-connected condenser and the evaporator assembly form a closed coolant circulation loop with coolant filled therein.
10. A cooling device comprising:
the parallel-connected condenser as claimed inclaim 4 ; and
an evaporator assembly including:
an evaporator having:
a case;
an evaporation chamber defined in the case; and
a heat-conducting base formed on a bottom of the case;
a coolant input pipe with two ends respectively connected to a top of the case of the evaporator and the first primary condenser tube of the primary condenser assembly; and
a coolant output pipe with two ends of the coolant output pipe respectively connected to a sidewall of the case of the evaporator and the second primary condenser tube of the primary condenser assembly;
wherein the parallel-connected condenser and the evaporator assembly form a closed coolant circulation loop with coolant filled therein.
11. The cooling device as claimed inclaim 7 , wherein
the first primary condenser tube of the primary condenser assembly has:
a coolant inlet formed through an upper portion of a peripheral wall of the first primary condenser tube; and
two coolant outlets respectively formed through lower portions of the peripheral wall of the first primary condenser tube and the second primary condenser tube;
the two ends of the coolant input pipe are respectively connected to the top of the case of the evaporator and the coolant inlet of the primary condenser assembly;
the two ends of the coolant output pipe are respectively connected to the sidewall of the case of the evaporator and the coolant outlet of the second primary condenser tube of the primary condenser assembly; and
the evaporator assembly has a quick return pipe with two ends respectively connected to another sidewall of the case of the evaporator and the coolant outlet of the first primary condenser tube of the primary condenser assembly.
12. The cooling device as claimed inclaim 8 , wherein
the first primary condenser tube of the primary condenser assembly has:
a coolant inlet formed through an upper portion of a peripheral wall of the first primary condenser tube; and
two coolant outlets respectively formed through lower portions of the peripheral wall of the first primary condenser tube and the second primary condenser tube;
the two ends of the coolant input pipe are respectively connected to the top of the case of the evaporator and the coolant inlet of the primary condenser assembly;
the two ends of the coolant output pipe are respectively connected to the sidewall of the case of the evaporator and the coolant outlet of the second primary condenser tube of the primary condenser assembly; and
the evaporator assembly has a quick return pipe with two ends respectively connected to another sidewall of the case of the evaporator and the coolant outlet of the first primary condenser tube of the primary condenser assembly.
13. The cooling device as claimed inclaim 9 , wherein
the first primary condenser tube of the primary condenser assembly has:
a coolant inlet formed through an upper portion of a peripheral wall of the first primary condenser tube; and
two coolant outlets respectively formed through lower portions of the peripheral wall of the first primary condenser tube and the second primary condenser tube;
the two ends of the coolant input pipe are respectively connected to the top of the case of the evaporator and the coolant inlet of the primary condenser assembly;
the two ends of the coolant output pipe are respectively connected to the sidewall of the case of the evaporator and the coolant outlet of the second primary condenser tube of the primary condenser assembly; and
the evaporator assembly has a quick return pipe with two ends respectively connected to another sidewall of the case of the evaporator and the coolant outlet of the first primary condenser tube of the primary condenser assembly.
14. The cooling device as claimed inclaim 10 , wherein
the first primary condenser tube of the primary condenser assembly has:
a coolant inlet formed through an upper portion of a peripheral wall of the first primary condenser tube; and
two coolant outlets respectively formed through lower portions of the peripheral wall of the first primary condenser tube and the second primary condenser tube;
the two ends of the coolant input pipe are respectively connected to the top of the case of the evaporator and the coolant inlet of the primary condenser assembly;
the two ends of the coolant output pipe are respectively connected to the sidewall of the case of the evaporator and the coolant outlet of the second primary condenser tube of the primary condenser assembly; and
the evaporator assembly has a quick return pipe with two ends respectively connected to another sidewall of the case of the evaporator and the coolant outlet of the first primary condenser tube of the primary condenser assembly.
15. The cooling device as claimed inclaim 11 , wherein the coolant input pipe is greater than the coolant output pipe in diameter
16. The cooling device as claimed inclaim 12 , wherein the coolant input pipe is greater than the coolant output pipe in diameter
17. The cooling device as claimed inclaim 13 , wherein the coolant input pipe is greater than the coolant output pipe in diameter
18. The cooling device as claimed inclaim 14 , wherein the coolant input pipe is greater than the coolant output pipe in diameter
19. The cooling device as claimed inclaim 15 , wherein the coolant input pipe is greater than the quick return pipe in diameter.
20. The cooling device as claimed inclaim 16 , wherein the coolant input pipe is greater than the quick return pipe in diameter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106131518 | 2017-09-14 | ||
| TW106131518ATWI631308B (en) | 2017-09-14 | 2017-09-14 | Parallel condenser and heat sink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20190078846A1true US20190078846A1 (en) | 2019-03-14 |
Family
ID=63959853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15/794,260AbandonedUS20190078846A1 (en) | 2017-09-14 | 2017-10-26 | Parallel-connected condenser and cooling device using the same |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20190078846A1 (en) |
| TW (1) | TWI631308B (en) |
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| US20200064074A1 (en)* | 2018-08-22 | 2020-02-27 | Man Zai Industrial Co., Ltd. | Condenser and heat dissipation apparatus |
| US11255586B2 (en)* | 2019-01-16 | 2022-02-22 | Man Zai Industrial Co., Ltd. | Parallel-connected condensation device |
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| TWI683078B (en)* | 2019-03-04 | 2020-01-21 | 萬在工業股份有限公司 | Gravity-type liquid gas circulation device |
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Also Published As
| Publication number | Publication date |
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| TWI631308B (en) | 2018-08-01 |
| TW201915423A (en) | 2019-04-16 |
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