CN104617502B - High-voltage handcart type switch cabinet contact heat dissipation device - Google Patents
High-voltage handcart type switch cabinet contact heat dissipation device Download PDFInfo
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- CN104617502B CN104617502B CN201510020957.7A CN201510020957A CN104617502B CN 104617502 B CN104617502 B CN 104617502B CN 201510020957 A CN201510020957 A CN 201510020957A CN 104617502 B CN104617502 B CN 104617502B
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- heat exchange
- exchange tube
- contact
- heat
- heat dissipation
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 40
- 230000003068 static effect Effects 0.000 claims abstract description 45
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/02—Details
- H02B11/04—Isolating-contacts, e.g. mountings or shieldings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Patch Boards (AREA)
Abstract
Description
技术领域technical field
本发明涉及一种高压手车式开关柜触头散热装置。The invention relates to a high-voltage handcart type switch cabinet contact cooling device.
背景技术Background technique
高压手车式开关柜是电力系统中最重要的部分之一，其具有结构紧凑、占地空间小、易于检修维护等特点。由于其作为电网与用户之间的连接枢纽，一旦发生故障，就极有可能造成设备损伤或用户停电等严重后果。The high-voltage handcart switchgear is one of the most important parts of the power system. It has the characteristics of compact structure, small footprint, and easy maintenance. As it is the connection hub between the power grid and users, once a failure occurs, it is very likely to cause serious consequences such as equipment damage or power outages for users.
目前现有高压手车式开关柜的触头盒和静触头都是套筒形状的，较小的静触头筒底端固定安装在较大的触头盒里面。因自身电阻以及接触电阻的存在，其运行时会产生热量，而高压手车式开关柜的动、静触头散热效果是影响其使用寿命的一个重要原因。如果高压手车式开关柜动、静触头的散热不够及时或不良，轻则引起开关柜触头烧熔断电事故，重则会发生爆炸事故，因此高压手车式开关柜的动、静触头散热问题一直都受到生产厂家的重视。At present, the contact box and the static contact of the existing high-voltage handcart switch cabinet are all in the shape of a sleeve, and the bottom of the smaller static contact box is fixedly installed in the larger contact box. Due to the existence of its own resistance and contact resistance, it will generate heat during operation, and the heat dissipation effect of the dynamic and static contacts of the high-voltage handcart switch cabinet is an important reason affecting its service life. If the heat dissipation of the dynamic and static contacts of the high-voltage handcart switch cabinet is not timely or poor, it will cause the contact of the switch cabinet to burn and cut off the power, and it will cause an explosion accident. Therefore, the dynamic and static contacts of the high-voltage handcart switch cabinet The problem of head heat dissipation has always been valued by manufacturers.
目前国内外生产的高压手车式开关柜的动、静触头散热技术主要以镀银技术、导体和触头结构的合理设计以及加装风扇等方法为主。但由于动、静触头连接处空间封闭狭隘，易形成对流散热死区，散热效果并不显著，限制了高压手车式开关柜的通流能力。在现有技术的情况下，若遇用电高峰，就极有可能导致热量不能及时散发，从而引起开关柜触头烧熔甚至爆炸事故。At present, the heat dissipation technology of dynamic and static contacts of high-voltage handcart switch cabinets produced at home and abroad is mainly based on silver plating technology, reasonable design of conductor and contact structure, and installation of fans. However, due to the closed and narrow space at the connection between the dynamic and static contacts, it is easy to form a dead zone for convection heat dissipation, and the heat dissipation effect is not significant, which limits the flow capacity of the high-voltage handcart switchgear. In the case of the prior art, if there is a peak power consumption, it is very likely that the heat cannot be dissipated in time, thereby causing the contacts of the switchgear to melt or even explode.
发明内容Contents of the invention
本发明所要解决的技术问题，就是提供一种高压手车式开关柜触头散热装置，能够使高压手车式开关柜动、静触头的热量高效地散发，降低触头运行温度，提供其运行负荷能力。The technical problem to be solved by the present invention is to provide a high-voltage handcart-type switch cabinet contact cooling device, which can efficiently dissipate heat from the dynamic and static contacts of the high-voltage handcart-type switch cabinet, reduce the operating temperature of the contacts, and provide other operating load capacity.
解决上述技术问题，本发明采用以下的技术方案：To solve the problems of the technologies described above, the present invention adopts the following technical solutions:
一种高压手车式开关柜触头散热装置，包括筒状的触头盒和静触头，较小的静触头筒底端固定安装在较大的触头盒里面，其特征在于：所述的静触头外接有一换热器，所述的换热器包括下端连接在静触头筒底端的换热管，换热管的上端为一散热结构。A high-voltage handcart type switchgear contact heat dissipation device, including a cylindrical contact box and a static contact, the bottom of the smaller static contact box is fixed and installed in the larger contact box, and its features are: The static contact is externally connected with a heat exchanger, the heat exchanger includes a heat exchange tube whose lower end is connected to the bottom end of the static contact cylinder, and the upper end of the heat exchange tube is a heat dissipation structure.
所述换热管的下端填充有可汽化提高散热速度的换热介质、内壁设有用于加快将汽化后的换热介质吸附回流到换热管下端的换热管芯。The lower end of the heat exchange tube is filled with a heat exchange medium that can be vaporized to improve the heat dissipation rate, and the inner wall is provided with a heat exchange core for accelerating the absorption and flow of the vaporized heat exchange medium to the lower end of the heat exchange tube.
使用时静触头产生的热量接触换热管下端使得换热管内的换热介质迅速汽化，汽化后的换热介质上升到换热管上端，并通过上端的散热结构将热量散失，然后汽化的换热介质粘附在换热管芯上加速回流到换热管下端。When in use, the heat generated by the static contact contacts the lower end of the heat exchange tube, causing the heat exchange medium in the heat exchange tube to vaporize rapidly, and the vaporized heat exchange medium rises to the upper end of the heat exchange tube, and dissipates the heat through the heat dissipation structure at the upper end, and then evaporates. The heat exchange medium adheres to the heat exchange tube core to accelerate the flow back to the lower end of the heat exchange tube.
所述换热管的下端外形制造成矩形状，所述的换热管下端通过触头盒和静触头筒壁上开有的矩形孔径向穿过静触头并固定在其筒底面上；这样可以增加与静触头筒底部的接触面，从而使得散热效率提高。The lower end of the heat exchange tube is made into a rectangular shape, and the lower end of the heat exchange tube radially passes through the static contact through the rectangular hole opened on the wall of the contact box and the static contact tube and is fixed on the bottom surface of the tube; In this way, the contact surface with the bottom of the static contact barrel can be increased, thereby improving the heat dissipation efficiency.
所述的静触头内设有一固定板将换热管固定在静触头的底部，固定板上设有与换热管下端外形相配合的凹槽，以提高散热效率。The static contact is provided with a fixing plate to fix the heat exchange tube at the bottom of the static contact, and the fixing plate is provided with a groove matching the shape of the lower end of the heat exchange tube to improve heat dissipation efficiency.
所述的散热结构为包围在换热管上端的散热翅片，散热翅片可以增大与空气的接触面，能够加快散热速率。The heat dissipation structure is heat dissipation fins surrounding the upper ends of the heat exchange tubes. The heat dissipation fins can increase the contact surface with the air and accelerate the heat dissipation rate.
所述的换热介质为水或者其他安全传热的液体。The heat exchange medium is water or other safe heat transfer liquids.
本发明可以做以下改进：所述的换热管芯可为铜丝网或铜粉末凝固在换热管内壁上的颗粒。The present invention can be improved as follows: the heat exchange tube core can be copper mesh or copper powder solidified on the inner wall of the heat exchange tube.
与现有技术相比，本发明工具有如下优点：Compared with prior art, tool of the present invention has following advantage:
本发明采用换热管与静触头直接接触进行散热，没有结构上的限制，热量能够高效地散发，同时换热管内部设有换热介质和换热管芯以及换热管上端安装有散热翅片能有效提高静触头的散热效率。In the present invention, the heat exchange tube is in direct contact with the static contact to dissipate heat without structural limitations, and the heat can be dissipated efficiently. The fins can effectively improve the heat dissipation efficiency of the static contacts.
附图说明Description of drawings
图1为本发明的分解示意图；Fig. 1 is the exploded schematic diagram of the present invention;
图2为本发明的截面图；Fig. 2 is a sectional view of the present invention;
图3为本发明的换热器主视图；Fig. 3 is the front view of the heat exchanger of the present invention;
图4为本发明的换热器与静触头连接左视图；Fig. 4 is a left side view of the connection between the heat exchanger and the static contact of the present invention;
图5为本发明实施例一的换热管剖视图；Fig. 5 is a sectional view of a heat exchange tube according to Embodiment 1 of the present invention;
图6为本发明实施例二的换热管剖视图。Fig. 6 is a sectional view of the heat exchange tube according to the second embodiment of the present invention.
图中：1-触头盒，2-换热器，3-静触头，4-螺栓，5-固定板，21-散热结构，22-换热管，23-换热介质，24-换热管芯。In the figure: 1-contact box, 2-heat exchanger, 3-static contact, 4-bolt, 5-fixing plate, 21-heat dissipation structure, 22-heat exchange tube, 23-heat exchange medium, 24-exchanger heat die.
具体实施方式detailed description
下面结合附图用实施例对本发明作进一步说明。The present invention will be further described with embodiment below in conjunction with accompanying drawing.
如图1、2、3、4、5所示的高压手车式开关柜触头散热装置是本发明的实施例之一，包括筒状的触头盒1和静触头3，较小的静触头筒底端固定安装在较大的触头盒里面，所述的静触头3外接有一换热器2，所述的换热器2包括下端连接在静触头筒底端的换热管22，换热管的上端为一散热结构21。The high-voltage handcart type switchgear contact cooling device shown in Figures 1, 2, 3, 4, and 5 is one of the embodiments of the present invention, including a cylindrical contact box 1 and a static contact 3, the smaller The bottom end of the static contact barrel is fixedly installed in a larger contact box, and the static contact 3 is externally connected with a heat exchanger 2, and the heat exchanger 2 includes a heat exchanger whose lower end is connected to the bottom end of the static contact barrel. The upper end of the tube 22 and the heat exchange tube is a heat dissipation structure 21 .
所述换热管22的下端填充有可汽化提高散热速度的换热介质23、内壁设有用于加快将汽化后的换热介质吸附回流到换热管下端的换热管芯24。The lower end of the heat exchange tube 22 is filled with a heat exchange medium 23 that can be vaporized to increase the heat dissipation rate, and the inner wall is provided with a heat exchange core 24 for accelerating the absorption and flow of the vaporized heat exchange medium to the lower end of the heat exchange tube.
使用时静触头产生的热量接触换热管下端使得换热管内的换热介质迅速汽化，汽化后的换热介质上升到换热管上端，并通过上端的散热结构将热量散失，然后汽化的换热介质粘附在换热管芯上加速回流到换热管下端。When in use, the heat generated by the static contact contacts the lower end of the heat exchange tube, causing the heat exchange medium in the heat exchange tube to vaporize rapidly, and the vaporized heat exchange medium rises to the upper end of the heat exchange tube, and dissipates the heat through the heat dissipation structure at the upper end, and then evaporates. The heat exchange medium adheres to the heat exchange tube core to accelerate the flow back to the lower end of the heat exchange tube.
所述换热管22的下端外形制造成矩形状，所述的换热管22下端通过触头盒1和静触头3筒壁上开有的矩形孔径向穿过静触头并固定在其筒底面上；这样可以增加与静触头筒底部的接触面，从而使得散热效率提高。The shape of the lower end of the heat exchange tube 22 is made into a rectangle, and the lower end of the heat exchange tube 22 radially passes through the static contact through the rectangular hole opened on the wall of the contact box 1 and the static contact 3 and is fixed on it. The bottom surface of the cylinder; this can increase the contact surface with the bottom of the static contact cylinder, thereby improving the heat dissipation efficiency.
所述的静触头3内设有一固定板5将换热管22固定在静触头的底部，固定板上设有与换热管下端外形相配合的凹槽，以提高散热效率，在本实施例中，采用四个螺栓4将固定板5与静触头3连接从而将换热管22固定在静触头的底部。The static contact 3 is provided with a fixed plate 5 to fix the heat exchange tube 22 on the bottom of the static contact, and the fixed plate is provided with a groove matching the shape of the lower end of the heat exchange tube to improve heat dissipation efficiency. In the embodiment, four bolts 4 are used to connect the fixing plate 5 with the static contact 3 so as to fix the heat exchange tube 22 at the bottom of the static contact.
所述的散热结构21为包围在换热管上端的散热翅片，散热翅片可以增大与空气的接触面，能够加快散热速率。The heat dissipation structure 21 is heat dissipation fins surrounding the upper ends of the heat exchange tubes, the heat dissipation fins can increase the contact surface with the air, and can accelerate the heat dissipation rate.
在本实施例中，所述的换热介质23为水，所述的换热管芯24为铜丝网。In this embodiment, the heat exchange medium 23 is water, and the heat exchange tube core 24 is copper wire mesh.
如图6所示的高压手车式开关柜触头散热装置是本发明的实施例之二，它与实施例之一不同的是，本实施例中的换热管芯24为铜粉末凝固在换热管内壁上的颗粒。The high-voltage handcart-type switchgear contact cooling device shown in Figure 6 is the second embodiment of the present invention. It is different from the first embodiment in that the heat exchange tube core 24 in this embodiment is copper powder solidified on the Particles on the inner wall of the heat exchange tube.
Claims (3)
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| CN201510020957.7A CN104617502B (en) | 2015-01-16 | 2015-01-16 | High-voltage handcart type switch cabinet contact heat dissipation device |
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| CN201510020957.7A CN104617502B (en) | 2015-01-16 | 2015-01-16 | High-voltage handcart type switch cabinet contact heat dissipation device |
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| CN104617502A CN104617502A (en) | 2015-05-13 |
| CN104617502B true CN104617502B (en) | 2017-01-18 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107147030A (en) * | 2017-07-18 | 2017-09-08 | 江苏大全长江电器股份有限公司 | A contact box with heat dissipation function |
| CN112652985B (en) * | 2020-12-21 | 2025-06-27 | 国网辽宁省电力有限公司电力科学研究院 | Natural cooling system for high current switch cabinet based on heat pipe technology |
| CN114974943A (en) * | 2022-06-14 | 2022-08-30 | 西安交通大学 | Large-current switch cabinet contact heat dissipation device |
| CN115224592A (en) * | 2022-08-05 | 2022-10-21 | 泉州市大西洋电力科技有限公司 | A high-voltage switch cabinet contact heat alarm device and installation method thereof |
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| CN104617502A (en) | 2015-05-13 |
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