The content of the invention
The main object of the present invention is to propose a kind of electronic water pump, it is intended to the good heat radiating of control board component is realized, so as toEnsure the normal work of electronic water pump.
To achieve the above object, electronic water pump proposed by the present invention, including：Pump case, motor casing and end cap, the end cap withThe pump case is formed with pump housing chamber, and the end cap is with the motor casing formed with motor cavity；Field frame assembly and impeller of rotor assembly,The field frame assembly is in the motor cavity；The impeller of rotor assembly includes turn with end cap central rotation connectionAxle and the impeller and rotor for being set in the rotating shaft, the impeller are located at the pump housing intracavitary, and the rotor is located at the electricityIn machine cavity, and the rotor is correspondingly arranged with the field frame assembly, and, board component is controlled, the control board component is fixedly arranged onThe end cap is close to the side of the motor cavity, and the control board component is in be bonded setting with the end cap.
Preferably, it is provided with heat-conducting layer between the control board component and the end cap.
Preferably, the control board component is filled in close to the side of the end cap formed with storage tank, the heat-conducting layerIn the storage tank.
Preferably, installation deep gouge is offered on the end cap, the heat-conducting layer is located in the installation deep gouge or the controlMaking sheet component is with the heat-conducting layer in the installation deep gouge.
Preferably, the end cap corresponds to the installation deep gouge close to the side of the pump housing chamber and offers radiating deep gouge.
Preferably, the control board component is detachably connected with the end cap by the first connector.
Preferably, the rotor suit is fixed on the rotating shaft, and the rotating shaft is convexly equipped with confession close to the side of the end capThe rotor installation positioning only supports flange.
Preferably, the periphery of the end cap is provided with mounting flange, and the pump case is provided with the be adapted to the mounting flangeOne attaching clamp, the motor casing is to provided with the second attaching clamp being adapted to the mounting flange, the fixed flange, firstAttaching clamp and the second attaching clamp are fixedly connected by the second connector.
Preferably, the pump case at the cooperation of the end cap with being provided with the first sealing ring；The motor casing and the end capCooperation at be provided with the second sealing ring.
Preferably, the end cap is provided with locating flange, the motor casing and the positioning close to the side of the motor cavityFlange suit is fixed；Second sealing ring is fixedly arranged between the internal face of the locating flange and the motor casing.
Electronic water pump proposed by the present invention includes：Pump case, motor casing, end cap, field frame assembly, impeller of rotor assembly and controlBoard component, the end cap and pump case are formed with pump housing chamber, and the end cap and motor casing are formed with motor cavity, and this patent is by the controlMaking sheet component is fixedly arranged on the end cap close to the side of the motor cavity, and the control board component and the end cap are set in being bondedPut.Because the electronic water pump that this patent proposes will control board component to be installed in end cap close to the side of motor cavity, therefore, control panelThe heat of component can be transferred to end cap, and then take away above-mentioned heat, therefore, this patent by the liquid of the endoceliac flowing of pumpThe radiating of control board component can be improved, ensure the normal work of electronic water pump.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, completeSite preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.BaseEmbodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all itsHis embodiment, belongs to the scope of protection of the invention.
If it is to be appreciated that related in the embodiment of the present invention directionality instruction (such as up, down, left, right, before and after ...),Then directionality instruction be only used for explaining relative position relation under a certain particular pose (as shown in drawings) between each part,Motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes therewith.
If in addition, relating to the description of " first ", " second " etc. in the embodiment of the present invention, " first ", " second " etc. are somebody's turn to doDescription be only used for describing purpose, and it is not intended that instruction or implying its relative importance or implicit indicating indicated skillThe quantity of art feature.Thus, " first " is defined, the feature of " second " can be expressed or implicitly includes at least one spySign.In addition, the technical scheme between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energyBased on enough realizations, the knot of this technical scheme is will be understood that when the combination appearance of technical scheme is conflicting or can not realizeConjunction is not present, also not within the protection domain of application claims.
The present invention proposes a kind of electronic water pump, and the electronic water pump can realize the good heat radiating of control board component, so as to protectDemonstrate,prove the normal work of electronic water pump.
In embodiments of the present invention, as depicted in figs. 1 and 2, the electronic water pump includes：Pump case 100, motor casing 200, end cap300th, field frame assembly 900, impeller of rotor assembly and control board component 700, wherein, the end cap 300 is formed with the pump case 100There is pump housing chamber, the end cap 300 is with the motor casing 200 formed with motor cavity；The field frame assembly 900 is located at the motor cavityIt is interior；The impeller of rotor assembly includes the rotating shaft 400 being connected with the center rotating of end cap 300 and is set in the rotating shaft400 impeller 500 and rotor 600, the impeller 500 are located at the pump housing intracavitary, and the rotor 600 is located at the motor cavityIt is interior, and the rotor 600 is correspondingly arranged with the field frame assembly 900；The control board component 700 is fixedly arranged on the end cap 300Close to the side of the motor cavity, and the control board component 700 is in be bonded setting with the end cap 300.The field frame assembly900 include stator core 910 and the stator winding 920 being wound on stator core 910.
It can realize that the principle of the control good heat radiating of board component 700 illustrates to this patent in conjunction with Fig. 1 and Fig. 2.ElectricityRotor 600 in machine cavity can drive rotating shaft 400 to rotate in the presence of the magnetic field of field frame assembly, and then drive pump endoceliacImpeller 500 is rotated, and water inlet 110 and delivery port 120 are provided with pump case 100, and when impeller 500 rotates, pump housing intracavitary is formedNegative pressure, so that the liquid such as water, oil flows into pump housing chamber from water inlet 110, and by the efflux pump body cavity of delivery port 120.ByIt is that pump case 100 and end cap 300 are enclosed and formed in pump housing chamber, this patent will control board component 700 to be installed in end cap 300 close to electricityThe side of machine cavity, therefore, the heat of control board component 700 can be transferred to end cap 300, and then pass through the endoceliac flowing of pumpLiquid takes away above-mentioned heat, and therefore, this patent can improve the radiating of control board component 700, ensure the normal work of electronic water pumpMake.
Fig. 2 is continued referring to, in order to promote to control the heat of board component 700 to be transmitted to end cap 300, the embodiment of this patent oneHeat-conducting layer 800 is provided between the control board component 700 and the end cap 300, specifically, the heat-conducting layer 800 can beThermal grease layer, thermal grease layer be coated uniformly on end cap 300 and control board component 700 between, due to silicone grease layer have it is excellentHeat conductivility, therefore, it is possible to promote control board component 700 heat transmitted to end cap 300；The heat-conducting layer 800 can be withFor heat conductive insulating glue-line, heat conductive insulating glue-line is adhesively fixed between end cap 300 and control board component 700, due to heat conductive insulatingLayer has good heat conductivility and insulating properties simultaneously, therefore can promote to control the heat of board component 700 to pass to end cap 300Pass, and ensure to control the good insulation between board component 700 and end cap 300.
The mounting structure of this patent heat-conducting layer 800 is described in detail in conjunction with Fig. 2.For covering heat-conducting layer 800Lid scope is limited in control board component 700 with the contact plane of end cap 300, avoiding heat-conducting layer 800 from wasting, this patent oneIn embodiment, the control board component 700 is filled close to the side of the end cap 300 formed with storage tank, the heat-conducting layer 800In the storage tank, in this way, after board component 700 is controlled and the installation of end cap 300 is fixed, heat-conducting layer 800 is fixed on end capBetween 300 and control board component 700, therefore, heat-conducting layer 800, which will not flow out, to be caused to waste.
Further, since heat-conducting layer 800 is arranged in the storage tank of control board component 700, that is, control board component 700 and heat conductionLayer 800 is set in integrative-structure, therefore can complete heat conduction in the lump while board component 700 will be controlled to be arranged on end cap 300The installation of layer 800, so as to improve the packaging efficiency of this patent electronic water pump.
Preferably, control board component 700 and end cap 300 are connected for convenience, and this patent passes through the first connectorControl board component 700 and end cap 300 is detachably connected, specifically, first connector is screw or bolt, screw or boltControl board component 700 and end cap 300 are sequentially worn to realize being detachably connected for control board component 700 and end cap 300.
Fig. 3 is refer to, in order to which the thickness of the end cap 300 of control board installation site is thinned, so as to promote control circuitThe heat of plate is transmitted through end cap 300 to pump housing chamber side, in the embodiment of this patent one, is offered on the end cap 300Deep gouge is installed, the heat-conducting layer 800 is located at the interior installation deep gouge or the control board component 700 and the heat-conducting layer 800 is equalIn the installation deep gouge.Specifically, due to offered on end cap 300 the installation deep gouge that is adapted to heat-conducting layer 800 or with controlThe installation deep gouge that making sheet component 700 and heat-conducting layer 800 are integrally adapted to, therefore the thickness of end cap 300 is thinner, so, it is possible to promoteHeat caused by control board transmits by end cap 300 to pump housing chamber side.
As a kind of preferred embodiment, the end cap 300 corresponds to the installation deep gouge close to the side of the pump housing chamber and opened upThere is radiating deep gouge, specifically, because the thickness of end cap 300 is further thinned, therefore, it is possible to further promote to controlHeat caused by board component 700 is transmitted by end cap 300 to pump housing chamber side, so as to improve dissipating for control board component 700Thermal effect.
Now the basic structure of pump housing chamber is described in detail.As shown in Fig. 2 the inner edge of pump case 100 is close to impeller 500Position is provided with the first negative pressure trough, and the position of the corresponding outer peripheral edge of impeller 500 of end cap 300 is provided with the second negative pressure trough, in this way, working as impellerDuring 500 rotation, negative pressure can be formed in the position of the first negative pressure trough and the second negative pressure trough, so that liquid is by water inlet 110Pump housing chamber is flowed into, and is flowed out by delivery port 120.
Now the basic structure of electronic water pump is described in detail, as shown in Fig. 2 in order to realize that the steady of rotating shaft 400 turnsDynamic, the electronic water pump that this patent proposes is provided with a pair of bearings, specifically, side shape of the end cap 300 close to the motor cavityInto there is clutch shaft bearing room, the clutch shaft bearing indoor location has the clutch shaft bearing that fixation is set with for the rotating shaft 400, the motorShell 200 close to the end cap 300 inwall formed with second bearing room, the second bearing indoor location has for the rotating shaftThe fixed second bearing of 400 suits.Because the both sides of rotating shaft 400 are respectively equipped with a bearing, therefore it can ensure that rotating shaft 400 is flatQuietly rotate.
Further, since clutch shaft bearing is arranged on the end cap 300 close to the side of the motor cavity, therefore can conveniently turnAxle 400 inserts the clutch shaft bearing room from the lateral pump housing chamber side of motor cavity one.
Fig. 2 is refer to, in order to ensure can to realize that installation is spacing exactly after stator and the suit of rotating shaft 400 are fixed, this is speciallyThe rotating shaft 400 of the sharp electronic water pump proposed is convexly equipped with stopping for the rotor 600 installation positioning close to the side of the end cap 300To flange.Flange is only supported due to being convexly equipped with rotating shaft 400, therefore after rotor 600 and the fixed suit of rotating shaft 400, can be accurateThe position after rotor 600 is installed is limited, and then rotor 600 and stator are mutually corresponded to, so as to improve rotor 600Electromagnetic torque.
Fig. 2 and Fig. 4 are refer to, the assembling in order to facilitate pump case 100, end cap 300 and motor casing 200 is fixed, and this patent carriesThe electronic water pump gone out is provided with mounting flange 310 in the periphery of the end cap 300, and the pump case 100 is provided with and the mounting flangeFirst attaching clamp 130 of 310 adaptations, the motor casing 200 are convex to being fixed provided with second be adapted to the mounting flange 310Ear 210, the fixed flange, the first attaching clamp 130 and the second attaching clamp 210 are fixedly connected by the second connector.ToolBody, installation through-hole is correspondingly provided with the mounting flange 310, the first attaching clamp 130 and the second attaching clamp 210, it is describedSecond connector is the screw or bolt for being arranged in the installation through-hole, because just pump case 100, end cap 300 and motor casing 200 are logicalCross the second connector to be detachably connected, therefore, the installation of pump case 100, end cap 300 and motor casing 200 is very convenient.
Fig. 2 is continued referring to, in order to improve the sealing after pump case 100, end cap 300 and motor casing 200 are installed, this patentIn one embodiment, the pump case 100 at the cooperation of the end cap 300 with being provided with the first sealing ring 10, the motor casing 200 and instituteState and the second sealing ring 20, after the second connector is fastened and fixed, pump case 100, end cap 300 and electricity are provided with the cooperation of end cap 300Casing 200 can be realized and firmly fixed, and due to pump case 100 and end cap 300, be respectively equipped between motor casing 200 and end cap 300First sealing ring 10 and the second sealing ring 20, it is close after pump case 100, end cap 300 and motor casing 200 are installed therefore, it is possible to improveFeng Xing.
Specifically, in the embodiment of this patent one, the end cap 300 is provided with locating flange close to the side of the motor cavity320, the motor casing 200 is fixed with the locating flange 320 suit；Second sealing ring is fixedly arranged on the locating flangeBetween 320 and the internal face of the motor casing 200.Because the end cap 300 is provided with the locating flange 320 of annular, the positioningThe periphery wall of flange 320 is adapted with the size of the internal perisporium of the motor casing 200, when the motor casing 200 and the end cap300 when being fixedly connected, and the motor casing 200 is sleeved on the locating flange 320, and second sealing ring 20 is fixedly arranged on instituteBetween the internal face for stating locating flange 320 and the motor casing 200, in this way, motor casing 200 and end cap 300 can not only be increasedBetween contact area, improve the sealing between motor casing 200 and end cap 300, additionally it is possible to facilitate motor casing 200 and end capBeing fixedly connected between 300.
As a kind of preferred embodiment, the motor casing 200 for the electronic water pump that this patent proposes includes what is be oppositely arranged with end capEnd housing and the side shell being extended from end housing to end cap side, the side shell and end housing are formed in one setting, are integrally formed knotThe motor casing 200 of structure is easy to the assembling of electronic water pump, while can reduce the cost of electronic water pump.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every at thisUnder the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/use indirectlyIt is included in other related technical areas in the scope of patent protection of the present invention.