技术领域technical field
本发明涉及电子设备机柜,特别是一种主动式散热双密闭电子设备机柜。The invention relates to an electronic equipment cabinet, in particular to an active cooling double-sealed electronic equipment cabinet.
背景技术Background technique
机柜通常应用于大量电子设备的集成安装装置,机柜内部安装的设备通过设备自身或机柜进行强迫风冷散热,机柜前后门均开制大量的散热孔洞,通常以机房内应用为主,但如果机柜应用于户外、沿海和电磁环境比较复杂的环境中,环境中的水气、灰尘、盐雾及电磁辐射等会导致机柜内安装的设备发生故障或性能降低,开放式的机柜已无法满足环境要求。The cabinet is usually used as an integrated installation device for a large number of electronic equipment. The equipment installed inside the cabinet is cooled by forced air through the equipment itself or the cabinet. A large number of cooling holes are opened on the front and rear doors of the cabinet. It is usually used in the computer room, but if the cabinet Applied in outdoor, coastal and electromagnetic environments with complex environments. Moisture, dust, salt spray and electromagnetic radiation in the environment will cause equipment installed in the cabinet to malfunction or degrade in performance. Open cabinets can no longer meet environmental requirements. .
为解决这个问题,通常的做法是将机柜内部的设备进行环境适应性改造或将机柜设计为密闭机柜。如果将机柜内部的设备直接进行环境适应性改造会带来以下问题:一、系统设备环境适应性改造存在较大的技术风险,某些系统设备先天不具备环境适应性改造条件,强行改造可能会导致设备性能下降或损坏;二、采用环境适应性改造设备会大大提高系统的研制费用,环境适应性改造设备与普通设备的价格往往会相差几倍甚至几十倍;三、系统设备环境适应性改造会大大提高系统的研制周期。另外,当前的密闭机柜均未对机柜进行防腐蚀设计和电磁兼容性设计。In order to solve this problem, a common practice is to adapt the equipment inside the cabinet to the environment or design the cabinet as a closed cabinet. If the equipment inside the cabinet is directly transformed to adapt to the environment, the following problems will be brought about: 1. There is a large technical risk in the adaptability of the system equipment to the environment. Some system equipment does not have the conditions for environmental adaptability. Resulting in equipment performance degradation or damage; Second, the use of environmental adaptability transformation equipment will greatly increase the development cost of the system, and the price of environmental adaptation transformation equipment and ordinary equipment will often differ by several times or even dozens of times; Third, the environmental adaptability of system equipment Transformation will greatly increase the development cycle of the system. In addition, none of the current airtight cabinets has anti-corrosion design and electromagnetic compatibility design for the cabinet.
发明内容Contents of the invention
发明目的:本发明所要解决的技术问题是针对现有技术的不足,提供一种主动式散热双密闭电子设备机柜。Purpose of the invention: The technical problem to be solved by the present invention is to provide an active heat dissipation double-sealed electronic equipment cabinet for the deficiencies of the prior art.
为了解决上述技术问题,本发明提供了一种主动式散热双密闭电子设备机柜,包括柜体、安装在柜体一侧的空调、柜体后侧的滤波器和柜体前端的机柜门;所述柜体内部设有一风道隔离板,风道隔离板将柜体内部划分为热风区和冷风区;空调包括空调冷风出口和空调热风进口,机柜包括机柜冷风进口和机柜热风出口,所述空调热风进口通过机柜热风出口连通热风区,所述空调冷风出口通过机柜冷风进口连通冷风区。In order to solve the above technical problems, the present invention provides an active heat dissipation double-sealed electronic equipment cabinet, which includes a cabinet body, an air conditioner installed on one side of the cabinet body, a filter at the rear side of the cabinet body, and a cabinet door at the front end of the cabinet body; The inside of the cabinet is provided with an air duct isolation plate, which divides the interior of the cabinet into a hot air area and a cold air area; the air conditioner includes an air conditioner cold air outlet and an air conditioner hot air inlet, and the cabinet includes a cabinet cold air inlet and a cabinet hot air outlet. The hot air inlet is connected to the hot air area through the hot air outlet of the cabinet, and the cold air outlet of the air conditioner is connected to the cold air area through the cold air inlet of the cabinet.
本发明中,所述机柜内设有多级电源滤波器,可有效抑制机柜的电源发射。In the present invention, the cabinet is provided with a multi-stage power filter, which can effectively suppress the power emission of the cabinet.
本发明中,所述机柜门上设有两个肋板,所述柜体上设有一屏蔽筋;所述屏蔽筋上嵌套指簧,且设置在所述两个肋板之间,所述两个肋板与柜体之间设有橡胶条;当机柜门关闭时,机柜门上的两个肋板压紧橡胶条,机柜门上的指簧和柜体上的屏蔽筋连续接触直至压紧。In the present invention, the cabinet door is provided with two ribs, and the cabinet body is provided with a shielding rib; the shielding rib is nested with a finger spring, and is arranged between the two ribs. There are rubber strips between the two ribs and the cabinet body; when the cabinet door is closed, the two ribs on the cabinet door press against the rubber strips, and the finger springs on the cabinet door and the shielding ribs on the cabinet body continuously contact until pressed tight.
本发明中,所述柜体内设有绝缘护套,降低设备金属材料与机柜金属材料之间的电位差,可有效降低电偶腐蚀。In the present invention, an insulating sheath is provided in the cabinet to reduce the potential difference between the metal material of the equipment and the metal material of the cabinet, thereby effectively reducing galvanic corrosion.
本发明中,所述柜体背部设有进线模组,进线模组可保证线缆的接地与机柜的地线等电位和水汽密封。In the present invention, the back of the cabinet is provided with an incoming line module, which can ensure that the grounding of the cable is equipotential and water vapor sealed with the grounding line of the cabinet.
有益效果:机柜内部设置有专门的风道隔离板,该风道隔离板可实现机柜内部冷热风道的隔离。机柜的侧面安装制冷空调,空调具备机柜内、机柜外两套空气循环系统,内外循环完全隔离。密闭机柜外壳由316奥氏体不锈钢材料焊接成型,不锈钢材料的表面进行了电泳和喷塑涂覆处理,使得机柜的主体材料具有耐酸碱和盐雾侵蚀的功能。机柜通过特殊设计,在不同材料之间增加第三种材料,可有效避免电偶腐蚀。机柜内部可安装19英寸标准设备,机柜和空调安装在一起,结构紧凑。Beneficial effects: the inside of the cabinet is provided with a special air duct isolation plate, which can realize the isolation of the cold and hot air ducts inside the cabinet. The side of the cabinet is installed with a refrigeration air conditioner. The air conditioner has two sets of air circulation systems inside and outside the cabinet, and the internal and external circulation is completely isolated. The enclosure of the airtight cabinet is welded and formed by 316 austenitic stainless steel. The surface of the stainless steel is treated with electrophoresis and plastic spray coating, so that the main material of the cabinet has the function of resisting acid, alkali and salt spray erosion. The cabinet is specially designed to add a third material between different materials, which can effectively avoid galvanic corrosion. 19-inch standard equipment can be installed inside the cabinet, and the cabinet and air conditioner are installed together with a compact structure.
附图说明Description of drawings
下面结合附图和具体实施方式对本发明做更进一步的具体说明,本发明的上述或其他方面的优点将会变得更加清楚。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, and the advantages of the above and other aspects of the present invention will become clearer.
图1是本发明的正视图;Fig. 1 is the front view of the present invention;
图2是本发明的左视图;Fig. 2 is the left view of the present invention;
图3是本发明的后视图;Fig. 3 is the back view of the present invention;
图4是机柜内风道分离示意图;Figure 4 is a schematic diagram of the separation of air ducts in the cabinet;
图5是机柜内部冷热风循环示意图;Figure 5 is a schematic diagram of the circulation of hot and cold air inside the cabinet;
图6是机柜双重密闭技术示意图。Fig. 6 is a schematic diagram of the cabinet double sealing technology.
具体实施方式detailed description
下面将结合附图对本发明作详细说明。The present invention will be described in detail below in conjunction with the accompanying drawings.
实施例:Example:
如图1-图3,本发明包括柜体1、空调2和滤波器3,空调2设置在柜体1外部一侧,滤波器3设置在柜体1内部,柜体1上设由机柜门4,柜体1背部设有进线模组5。As shown in Figures 1 to 3, the present invention includes a cabinet 1, an air conditioner 2 and a filter 3, the air conditioner 2 is arranged on the outside side of the cabinet 1, the filter 3 is arranged inside the cabinet 1, and the cabinet 1 is provided with a cabinet door 4. The back of the cabinet body 1 is provided with an incoming line module 5 .
如图4和图5,柜体1内部设有风道隔离板6,风道隔离板6将柜体1内部分为热风区和冷风区,空调2包括空调冷风出口13和空调热风进口14,机柜包括机柜冷风进口11和机柜热风出口12,所述空调热风进口14通过机柜热风出口12连通热风区,所述空调冷风出口13机柜冷风进口11通过连通冷风区。;机柜门4与柜体1之间设有指簧7和橡胶条8,机柜门上设有5个铰链和锁点,保证机柜门与柜体能够压紧橡胶条。As shown in Figure 4 and Figure 5, the inside of the cabinet body 1 is provided with an air duct isolation plate 6, which divides the interior of the cabinet body 1 into a hot air area and a cold air area, and the air conditioner 2 includes an air conditioner cold air outlet 13 and an air conditioner hot air inlet 14, The cabinet includes a cabinet cold air inlet 11 and a cabinet hot air outlet 12. The air conditioner hot air inlet 14 is connected to the hot air area through the cabinet hot air outlet 12, and the air conditioner cold air outlet 13 is connected to the cabinet cold air inlet 11 through the cold air area. A finger spring 7 and a rubber strip 8 are provided between the cabinet door 4 and the cabinet body 1, and 5 hinges and lock points are provided on the cabinet door to ensure that the cabinet door and the cabinet body can press the rubber strip.
如图6,在机柜门上设计有两个肋板9,同时在机柜柜体上设置有一个屏蔽筋10,当门与柜体关闭时,门上的两个肋板9会压紧门板上的橡胶条8,门板上的指簧7也会和柜体上的屏蔽筋10连续接触,同时肋板9的内侧和屏蔽筋10的两侧均进行了导电处理,从而实现了门板关闭时缝隙处导电的连续性。As shown in Figure 6, two ribs 9 are designed on the cabinet door, and a shielding rib 10 is provided on the cabinet body. When the door and the cabinet body are closed, the two ribs 9 on the door will press the door panel The rubber strip 8 and the finger spring 7 on the door panel will also be in continuous contact with the shielding rib 10 on the cabinet body. At the same time, the inner side of the rib 9 and both sides of the shielding rib 10 are conductively treated, thereby realizing the gap when the door panel is closed. continuity of conduction.
密闭机柜的散热。密闭机柜内部集成了较多的发热设备,机柜的散热主要依靠柜体1侧面安装的空调2,空调可将机柜内部的风道和外部的风道完全隔离,分别为内循环和外循环。内循环主要是冷却机柜内部的空气,具体为,机柜前部的冷风由内部安装的设备加热后形成热风,热风通过机柜的后部进入空调进行冷却,冷却后的冷空气再从机柜的前部进入,如此形成空调的内循环,机柜内部和空调的内循环风道如图5所示。空调外循环目的是为空调散热,具体为机柜外部的冷空气由空调的底部进入,通过空调的散热器加热后由空调的两侧排出,如此即为空调外循环。内外循环风道的隔离可有效的将机柜内部的热量排除,达到散热目的。同时机柜内外空气的隔离可有效避免外界空气中的盐雾、灰尘等有害物质对机柜内部设备的腐蚀。Heat dissipation in a closed cabinet. A lot of heating equipment is integrated inside the airtight cabinet. The heat dissipation of the cabinet mainly depends on the air conditioner 2 installed on the side of the cabinet body 1. The air conditioner can completely isolate the air duct inside the cabinet from the external air duct, which are internal circulation and external circulation respectively. The internal circulation is mainly to cool the air inside the cabinet. Specifically, the cold air at the front of the cabinet is heated by the equipment installed inside to form hot air. The hot air enters the air conditioner through the rear of the cabinet for cooling. In this way, the internal circulation of the air conditioner is formed. The interior of the cabinet and the internal circulation air duct of the air conditioner are shown in Figure 5. The purpose of the external circulation of the air conditioner is to dissipate heat for the air conditioner. Specifically, the cold air outside the cabinet enters from the bottom of the air conditioner, and is heated by the radiator of the air conditioner and then discharged from both sides of the air conditioner. This is the external circulation of the air conditioner. The isolation of the internal and external circulation air ducts can effectively remove the heat inside the cabinet to achieve the purpose of heat dissipation. At the same time, the isolation of air inside and outside the cabinet can effectively prevent harmful substances such as salt spray and dust in the outside air from corroding the internal equipment of the cabinet.
密闭机柜的水密封:密闭机柜柜体由奥氏体不锈钢整体焊接成型,可避免拼接是缝隙处的泄露。在转动部件门与柜体之间增加了水密封的橡胶条8,为保证门与柜体之间能够压紧橡胶条,在门的两侧分别设置了5个铰链和锁点。Water sealing of airtight cabinets: The body of airtight cabinets is integrally welded and formed by austenitic stainless steel, which can avoid leakage at joints. A water-tight rubber strip 8 is added between the rotating part door and the cabinet body. In order to ensure that the rubber strip can be compressed between the door and the cabinet body, five hinges and lock points are respectively arranged on both sides of the door.
密闭机柜的电磁兼容设计:密闭机柜整体为不锈钢材料,不锈钢材料本身具有良好的电磁密封作用,在柜体与门之间增加了黄铜材质的指簧7,且门4与指簧的连接处进行了导电处理,可保证接缝处的导电连续性。另外在机柜内部增加了一多级电源滤波器3,可有效抑制机柜的电源发射。机柜对外的线缆进出处增加了进线模组5,进线模组可保证线缆的接地与机柜的地线等电位和水汽密封。Electromagnetic compatibility design of the airtight cabinet: The airtight cabinet is made of stainless steel as a whole, and the stainless steel itself has a good electromagnetic sealing effect. A brass finger spring 7 is added between the cabinet body and the door, and the connection between the door 4 and the finger spring Conductive treatment is carried out to ensure the continuity of electrical conductivity at the seams. In addition, a multi-stage power filter 3 is added inside the cabinet, which can effectively suppress the power emission of the cabinet. An incoming cable module 5 is added to the cable entrance and exit of the cabinet. The incoming cable module can ensure that the grounding of the cable is equipotential and moisture-tight with the ground wire of the cabinet.
密闭机柜的防腐蚀设计:密闭机柜整体密封设计,可有效的防止盐雾、水气等有害介质进入机柜内部产生的电化学腐蚀。机柜的柜体1、机柜门4、空调2均采用了耐腐蚀的奥氏体不锈钢材料。机柜内部设备安装时,在安装设备与机柜之间增加一绝缘护套,降低设备金属材料与机柜金属材料之间的电位差,可有效降低电偶腐蚀。Anti-corrosion design of the airtight cabinet: The overall sealing design of the airtight cabinet can effectively prevent the electrochemical corrosion caused by salt spray, water vapor and other harmful media entering the inside of the cabinet. The cabinet body 1, the cabinet door 4 and the air conditioner 2 of the cabinet are all made of corrosion-resistant austenitic stainless steel. When the equipment inside the cabinet is installed, an insulating sheath is added between the installation equipment and the cabinet to reduce the potential difference between the metal material of the equipment and the metal material of the cabinet, which can effectively reduce galvanic corrosion.
本发明提供了一种主动式散热双密闭电子设备机柜,具体实现该技术方案的方法和途径很多,以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。本实施例中未明确的各组成部分均可用现有技术加以实现。The present invention provides an active heat dissipation double-sealed electronic equipment cabinet. There are many methods and approaches for realizing the technical solution. The above descriptions are only preferred implementation modes of the present invention. That is to say, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the present invention. All components that are not specified in this embodiment can be realized by existing technologies.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510859273.6ACN105431007B (en) | 2015-11-30 | 2015-11-30 | A kind of active radiating double density closes electronic equipment cabinet |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510859273.6ACN105431007B (en) | 2015-11-30 | 2015-11-30 | A kind of active radiating double density closes electronic equipment cabinet |
| Publication Number | Publication Date |
|---|---|
| CN105431007Atrue CN105431007A (en) | 2016-03-23 |
| CN105431007B CN105431007B (en) | 2018-04-10 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510859273.6AActiveCN105431007B (en) | 2015-11-30 | 2015-11-30 | A kind of active radiating double density closes electronic equipment cabinet |
| Country | Link |
|---|---|
| CN (1) | CN105431007B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163249A (en)* | 2016-08-31 | 2016-11-23 | 苏州广能电子科技有限公司 | A kind of shielding rack |
| CN112004348A (en)* | 2020-08-17 | 2020-11-27 | 深圳绿色云图科技有限公司 | Cabinet door and cabinet assembly |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2549145Y (en)* | 2002-05-20 | 2003-05-07 | 中国人民解放军总参谋部工程兵第四设计研究院 | Electric sealing structure of protective equipment door |
| DE10156701B4 (en)* | 2001-11-17 | 2005-07-07 | Rittal Gmbh & Co. Kg | Vibration-damped attachment of a cooling unit to a cladding element of a control cabinet |
| CN201273925Y (en)* | 2008-09-19 | 2009-07-15 | 东北电网有限公司长春超高压局 | Electric detection system machine cabinet for preventing electromagnetic interference |
| CN201709051U (en)* | 2010-05-11 | 2011-01-12 | 北京首信艺能通信有限公司 | Informationized outdoor integrated cabinet |
| CN201752173U (en)* | 2010-04-22 | 2011-02-23 | 上海铁路通信工厂 | Nine-edge bending section cabinet with function of electromagnetic shielding |
| CN102566711A (en)* | 2010-12-09 | 2012-07-11 | 鸿富锦精密工业(深圳)有限公司 | Server cabinet |
| US20120205089A1 (en)* | 2011-02-10 | 2012-08-16 | Rittal Gmbh & Co. Kg | Method and apparatus for controlling and monitoring an air-conditioning system of a data processing installation |
| CN202417243U (en)* | 2012-01-20 | 2012-09-05 | 辽宁陆平机器股份有限公司 | Cabin body of electronic shielding square cabin |
| CN102791119A (en)* | 2012-07-26 | 2012-11-21 | 中兴通讯股份有限公司 | Mobile terminal |
| JP2013030027A (en)* | 2011-07-28 | 2013-02-07 | Toshiba Corp | Module and modular data center |
| CN203378169U (en)* | 2013-08-22 | 2014-01-01 | 龙源(北京)风电工程技术有限公司 | Electrical cabinet |
| CN204030293U (en)* | 2014-06-20 | 2014-12-17 | 天津金海兴业科技有限公司 | A kind of semi-enclosed automatically controlled unit |
| CN104582372A (en)* | 2013-10-18 | 2015-04-29 | 常州市中泰屏蔽设备有限公司 | Electromagnetic shielding cabinet |
| CN204498546U (en)* | 2015-04-17 | 2015-07-22 | 梁玉成 | A kind of electromagnetic shielding rack |
| CN104913419A (en)* | 2015-06-23 | 2015-09-16 | 深圳市共济科技有限公司 | Equipment and cabinet integrated air conditioner and system containing equipment and cabinet integrated air conditioner |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10156701B4 (en)* | 2001-11-17 | 2005-07-07 | Rittal Gmbh & Co. Kg | Vibration-damped attachment of a cooling unit to a cladding element of a control cabinet |
| CN2549145Y (en)* | 2002-05-20 | 2003-05-07 | 中国人民解放军总参谋部工程兵第四设计研究院 | Electric sealing structure of protective equipment door |
| CN201273925Y (en)* | 2008-09-19 | 2009-07-15 | 东北电网有限公司长春超高压局 | Electric detection system machine cabinet for preventing electromagnetic interference |
| CN201752173U (en)* | 2010-04-22 | 2011-02-23 | 上海铁路通信工厂 | Nine-edge bending section cabinet with function of electromagnetic shielding |
| CN201709051U (en)* | 2010-05-11 | 2011-01-12 | 北京首信艺能通信有限公司 | Informationized outdoor integrated cabinet |
| CN102566711A (en)* | 2010-12-09 | 2012-07-11 | 鸿富锦精密工业(深圳)有限公司 | Server cabinet |
| US20120205089A1 (en)* | 2011-02-10 | 2012-08-16 | Rittal Gmbh & Co. Kg | Method and apparatus for controlling and monitoring an air-conditioning system of a data processing installation |
| JP2013030027A (en)* | 2011-07-28 | 2013-02-07 | Toshiba Corp | Module and modular data center |
| CN202417243U (en)* | 2012-01-20 | 2012-09-05 | 辽宁陆平机器股份有限公司 | Cabin body of electronic shielding square cabin |
| CN102791119A (en)* | 2012-07-26 | 2012-11-21 | 中兴通讯股份有限公司 | Mobile terminal |
| CN203378169U (en)* | 2013-08-22 | 2014-01-01 | 龙源(北京)风电工程技术有限公司 | Electrical cabinet |
| CN104582372A (en)* | 2013-10-18 | 2015-04-29 | 常州市中泰屏蔽设备有限公司 | Electromagnetic shielding cabinet |
| CN204030293U (en)* | 2014-06-20 | 2014-12-17 | 天津金海兴业科技有限公司 | A kind of semi-enclosed automatically controlled unit |
| CN204498546U (en)* | 2015-04-17 | 2015-07-22 | 梁玉成 | A kind of electromagnetic shielding rack |
| CN104913419A (en)* | 2015-06-23 | 2015-09-16 | 深圳市共济科技有限公司 | Equipment and cabinet integrated air conditioner and system containing equipment and cabinet integrated air conditioner |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163249A (en)* | 2016-08-31 | 2016-11-23 | 苏州广能电子科技有限公司 | A kind of shielding rack |
| CN112004348A (en)* | 2020-08-17 | 2020-11-27 | 深圳绿色云图科技有限公司 | Cabinet door and cabinet assembly |
| Publication number | Publication date |
|---|---|
| CN105431007B (en) | 2018-04-10 |
| Publication | Publication Date | Title |
|---|---|---|
| CN107635390B (en) | A kind of cold and hot separation data center with low-and high-frequency electro-magnetic screen function | |
| CN207410658U (en) | A kind of combined type air passage closed case | |
| CN102832813B (en) | A kind of bidirectional charger internal main electric component arrangement used for electric vehicle | |
| CN210444741U (en) | Outdoor rack of electromagnetic shield for communication | |
| CN105431007B (en) | A kind of active radiating double density closes electronic equipment cabinet | |
| CN104850193A (en) | Reinforced anti-interference computer case | |
| CN201830590U (en) | Radiating case | |
| CN209709401U (en) | Electric power distribution transformer monitoring and dynamic reactive compensation device | |
| CN108093596A (en) | A kind of High-Voltage Electrical Appliances cabinet | |
| CN212486982U (en) | Heat dissipation formula regulator cubicle | |
| CN206525082U (en) | A kind of millimeter-wave power amplifiers heat abstractor | |
| CN204761950U (en) | Air-conditioning energy-saving system safety magnetic shield | |
| CN208175238U (en) | A kind of novel electromagnetic shielding cabinet | |
| CN202773228U (en) | Waterproof and mothproof electronic equipment protective cover | |
| CN107946927A (en) | It is provided with the forceful electric power power distribution cabinet of heat sink | |
| CN107346869B (en) | High-voltage armored movable-type switch cabinet wiring groove | |
| CN103683015A (en) | Electrical control cabinet | |
| CN204272529U (en) | A kind of explosion-proof electric control box | |
| CN204361542U (en) | A kind of outdoor electricity distribution cabinet | |
| CN106093490A (en) | Anti-electromagnetic interference casing | |
| CN207639064U (en) | Active cool type shields by force cabinet | |
| CN105977803A (en) | Dustproof and heat-radiating integrated power distribution box | |
| CN220895393U (en) | Weak current dustproof switch | |
| CN202034532U (en) | Power supply socket connector in switch cabinet | |
| CN207234173U (en) | A kind of low pressure power supply and distribution transformation device |
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |