CN103050330A - Vacuum switch - Google Patents
Vacuum switch Download PDFInfo
- Publication number
- CN103050330A CN103050330A CN2013100047677A CN201310004767A CN103050330A CN 103050330 A CN103050330 A CN 103050330A CN 2013100047677 A CN2013100047677 A CN 2013100047677A CN 201310004767 A CN201310004767 A CN 201310004767A CN 103050330 A CN103050330 A CN 103050330A
- Authority
- CN
- China
- Prior art keywords
- evaporator
- vacuum switch
- condenser
- conducting rod
- moving contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention relates to a vacuum switch, which comprises a moving contact, a static contact, a movable conducting rod, a static conducting rod and a cooling system. The cooling system comprises an evaporator and a condenser. The evaporator and the condenser are both positioned at the outside of the vacuum switch and do not influence the internal structure of the vacuum switch; and the evaporator is a sealed metal container, is sleeved on the conducting rods and is simultaneously installed on the leading-out wires of the conducting rods through fixing elements. An evaporative cooling liquid is filled in the evaporator. The evaporator can also be an open metal container, openings at both ends are welded on the conducting rods and are formed into a sealed cavity body together with the conducting rods, and the evaporative cooling liquid is filled in the sealed cavity body. The condenser is a hollow metal cavity body. The evaporator and the condenser are connected through an air-outlet pipeline and a liquid-returning pipeline, and the pipelines are made of insulating materials.
Description
Technical field
The present invention relates to a kind of vacuum switch, particularly a kind of vacuum switch with great current carrying capacity.
Background technology
The vacuum switch of production and application is high vacuum environment around the contact at present, and the heat that the contact place produces can only lean on the heat conduction of thermal radiation and conducting rod to be dispersed in the environment, and heat-sinking capability is limited, causes current capacity limited, and difficulty is used for large current applications.
Even at the arranged outside hair-dryer, with the heat-sinking capability of enhancing vacuum switch to environment, but because the heat at contact place will be transmitted to relatively difficulty of vacuum switch surface itself, thereby little to the increasing action of vacuum switch current capacity.Simultaneously, hair-dryer needs power supply, needs to safeguard and may break down.
For increasing the vacuum switch current capacity certain methods is arranged at present, in patent CN200910132321.6 " large-capacity vacuum circuit breaker ", disclose a kind of by will be than the vacuum switch parallel connection of low capacity to improve the method for current capacity, the shortcoming of the method is to have increased cost and complexity, and is simultaneously also wayward for current-sharing and the synchronism of parallel connection.A kind of vacuum switch with heat pipe is disclosed in patent US7471495 " Vacuum Circuit Breaker Having a High Circuit Carrying Capacity ", in the vacuum switch conducting rod, heat pipe is set, be used for shedding heat, be provided with simultaneously the fin of heat radiation in the conducting rod end, the method is owing to arrange heat pipe in conducting rod inside, so the cooling fluid that stores is less, the vacuum switch cooling effect improves not obvious, the method causes the conducting rod complex structure of vacuum switch simultaneously, need to redesign element in the vacuum chamber body, realize relatively difficulty.In addition, also have among the patent CN200810116544.9 " a kind of heat pipe type vacuum switch " to disclose a kind of heat pipe-type switch, in the inside of vacuum interrupter evaporation tube is set, but also exists and the similar problem of above-mentioned patent.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, propose a kind of vacuum switch with great current carrying capacity.Particularly a kind of vacuum arc extinguish chamber structure is simple, the vacuum switch that cooling performance is strong.
The technical scheme that technical solution problem of the present invention adopts is:
Vacuum switch of the present invention comprises fixed contact, moving contact, static conductive rod, moving conductive rod and cooling system.Fixed contact and static conductive rod link together, and moving contact and moving conductive rod link together, and during work, moving contact contacts with fixed contact and consists of the galvanic circle.
Described cooling system is by evaporator, and condenser forms.
Described evaporator is the airtight container that metal material is made, and is set on the conducting rod, and inside is filled with evaporative cooling liquid.Evaporator and conducting rod contact-making surface are provided with the heat conduction glue-line, guarantee the close contact of evaporator and conducting rod and then have good thermal conductivity.Described evaporator uses screw to be fixed on the lead-out wire of vacuum switch, and the evaporator that wherein is installed in the moving conductive rod side moves with conducting rod.Described screw number can be one or more.In order to increase heat transfer area, the conducting rod of described installation evaporator is exposed at the outdoor part of vacuum extinction according to the difference of current capacity, and length is different.
Described evaporator also can be the both ends open cavity that metal material is made, and both ends open and conducting rod welding consist of seal chamber jointly with conducting rod, and described seal chamber inside is filled with evaporative cooling liquid; The conducting rod part that described and evaporator consists of seal chamber jointly can be smooth surface, also can be at conducting rod Surface Machining groove, to strengthen heat-sinking capability.
Evaporator links to each other with condenser by pipeline.
Described pipeline is insulated tube, to guarantee the electric insulation of cooling system and conducting rod.
The heat that the contact resistance of fixed contact and moving contact produces during work passes to evaporator by conducting rod, the evaporated liquor that heating is inner, and the evaporated liquor decalescence reaches the purpose of cooling off conducting rod.The steam that phase transformation produces upwards flows by metal tube, and flows out evaporator by flange, through outlet pipe, flows into condenser from the inlet flange of condenser, in condenser by cooling phase-change is liquid medium with the external environment heat exchange.The liquid evaporated liquor that condensation forms flows out through condenser fluid flange, flows to evaporator through the liquid back pipe road, and the heat exchange of finishing evaporated liquor circulates.Describedly circulate as the external power-free self-loopa; Described evaporator installation sleeve, it is outdoor that evaporator and condenser all are positioned at vacuum extinction.
Described cooling system can be arranged on the first side of stationary contact and the first side of movable contact simultaneously, or only in fixed contact or a moving contact side setting wherein.When cooling system was installed on the moving contact side, the pipeline between evaporator and the condenser was connected with one section telescoping tube that is made of bellows or flexible pipe, is used for cooperating the motion of moving conductive rod, and described moving conductive rod side lead-out wire contains one section flexible wire simultaneously.In the described cooling system, can be condenser of each evaporator arrangement, also can be that two evaporators share a condenser.
Described condenser is hollow metallic cavity, can but to be not limited to be various forms of condensers or the coolers such as gilled radiator, air-cooled condenser, condenser is liquid with steam-condensation.For guaranteeing that evaporated liquor refluxes smoothly, condenser locations is higher than evaporator usually in the work.In addition, also can utilize this structure by near a side of conducting rod capillary pipe structure being set at evaporator, even evaporator is lower than or maintain an equal level with condenser locations, still can cool solidifying working media be turned back to evaporator by capillary force.
Described evaporated liquor includes but not limited to low boiling, do not fire or difficult combustion various perfluorocarbon, fluorine carbon oxygen, fluorine is hydrocarbon or the fluorine carboritride, and composition thereof.During the inner filling of evaporator evaporated liquor, first evaporator is vacuumized, and then be filled with a certain amount of cooling fluid according to the needs of heat dissipation capacity.
The present invention compared with prior art has following advantage:
1, the evaporated liquor use amount is large, can improve cooling effect, so that the vacuum switch current capacity is larger;
2, simple in structure, the vacuum interrupter inner member is constant;
3, improved reliability, the evaporated liquor natural circulation does not need outside energy supply, and the evaporated liquor insulation level is high simultaneously, even occur leaking, can not affect the insulation level of vacuum interrupter yet.
Description of drawings
Fig. 1 is vacuum switch execution mode one structural representation of great current carrying capacity of the present invention;
Fig. 2 is that the vacuum switch of Fig. 1 execution mode is in the open position schematic diagram;
Fig. 3 is vacuum switch execution mode two structural representations of great current carrying capacity of the present invention;
Fig. 4 is vacuum switch execution mode three structural representations of great current carrying capacity of the present invention;
Fig. 5 is execution mode one schematic diagram of evaporator in Fig. 1-4 execution mode;
Fig. 6 is execution mode two schematic diagrames of evaporator in Fig. 1-4 execution mode;
1 is static conductive rod among the figure, 2 moving conductive rods, 3 fixed contacts, 4 moving contacts, the evaporator of 5 fixed contact sides, the evaporator flange of 6 fixed contact sides, the outlet pipe of 7 fixed contact sides, the liquid back pipe road of 8 fixed contact sides, the condenser of 9 fixed contact sides, 10 vacuum switch arc control device shells, the condenser inlet flange of 11 fixed contact sides, the condenser fluid flange of 12 fixed contact sides, the condenser inlet flange of 13 moving contact sides, the condenser of 14 moving contact sides, the fluid flange of 15 moving contact side condensers, the liquid back pipe road of 16 moving contact sides, the outlet pipe of 17 moving contact sides, the telescoping tube of 18 moving contact sides, the evaporator of 19 moving contact sides, 20 capillary pipe structures, the lead-out wire of 21 fixed contact sides, the hold-down nut of 22 fixed contact sides, the lead-out wire of 23 moving contact sides, the hold-down nut of 24 moving contact sides; 25 fixed contact side heat conduction glue-lines; 26 moving contact side heat conduction glue-lines; 27 copper pipes; 28 open type evaporators; 29 solder joints; 30 heat radiation grooves.
Embodiment
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation of vacuum switch execution mode one of the present invention.The embodiment of the invention 1 comprises dynamic/static contact, sound conducting rod, dynamic/static contact lead-out wire, cooling system.As shown in Figure 1, fixed contact 3, the part of moving contact 4 and static conductive rod 1 and moving conductive rod 2 is positioned at vacuum switch shell 10 inside.One end of static conductive rod 1 links to each other with fixed contact, and the other end passes vacuum switch shell 10 and links to each other with the lead-out wire 21 of fixed contact side.The evaporator 5 that is installed in the fixed contact side closely is set on the static conductive rod 1, hold-down nut 22 by the fixed contact side is fixed on the lead-out wire 21 of fixed contact side simultaneously, between the evaporator 5 of fixed contact side and static conductive rod 1, the heat conduction glue-line is arranged, guarantee the evaporator 5 and static conductive rod 1 close contact of fixed contact side.Gas after the evaporative cooling liquid heat absorption phase transformation in the evaporator 5 of fixed contact side enters the gas piping 7 of fixed contact side by the evaporator flange 6 of fixed contact side, flows into the condenser 9 of fixed contact side by the condenser inlet flange 11 that is installed in the fixed contact side again.After supercooling, evaporative cooling liquid flows out the fluid flange 12 of fixed contact side condenser, enters the liquid back pipe road 8 of fixed contact side, flow back into the evaporator 5 of fixed contact side.The moving contact side structure is similar to the fixed contact side, but since moving contact position when cut-offfing change, so the pipeline between the condenser 14 of the evaporator 19 of moving contact side and moving contact side is connected with the moving contact side telescoping tube 18 of one section bellows or flexible pipe formation.
In addition, capillary pipe structure 20 is positioned at moving contact side evaporator 19 inboards, and this capillary pipe structure has the effect of two aspects, and the one, at the vacuum switch at right angle setting, when moving contact side cooler 14 positions are lower than moving contact side evaporator 19, guarantee that evaporative cooling liquid refluxes smoothly; The 2nd, at the vacuum switch at right angle setting, moving contact side evaporator 19 is in below and inner evaporative cooling liquid when less, guarantees moving conductive rod 2 contacts evaporative cooling liquid as much as possible.
Fig. 2 is that the vacuum switch of embodiment 1 shown in Figure 1 is in the open position schematic diagram.The evaporator 19 of moving contact side, moving contact side lead-out wire 23, moving contact side hold-down nut 24 moves downward with moving conductive rod 2 and moving contact 4,18 elongations of moving contact side telescoping tube.
Fig. 3 is the structural representation of vacuum switch execution mode two of the present invention.Compare with embodiment 1 shown in Figure 1, this embodiment only is equipped with the cooling system that is made of evaporator, condenser in the fixed contact side.
Fig. 4 is the structural representation of vacuum switch execution mode three of the present invention.Compare with embodiment 1 shown in Figure 1, among this embodiment, the evaporator of moving contact side and fixed contact side shares a condenser.
Fig. 5 is the schematic diagram of evaporator embodiment 1 in the vacuum switch execution mode shown in Fig. 1-4.Compare with evaporator shown in Figure 1, among the embodiment shown in Figure 5, there is the copper pipe 27 of the parallel installation of many groups fixed contact side evaporator 5 inside, and the top of organizing copper pipe 27 interconnects more, and the bottom also interconnects, and uses this mode can save coolant.
Fig. 6 is the schematic diagram of evaporator embodiment 2 in the vacuum switch execution mode shown in Fig. 1-4, compares with evaporator shown in Figure 1, and Fig. 6 split shed formula evaporator 28 is welded on the conducting rod 1 by solder joint 29, with conducting rod 1 common formation airtight container.There is heat radiation groove 30 on the surface of the part of conducting rod 1 in airtight container.
Claims (7)
1. a vacuum switch comprises moving contact (4), fixed contact (3), moving conductive rod (2), static conductive rod (1), and it is characterized in that: described vacuum switch also comprises cooling system; Described cooling system is comprised of evaporator, condenser; Described evaporator, condenser all are positioned at the outside of vacuum switch; Described evaporator is set on the conducting rod for the canister of sealing; Gap between evaporator and the conducting rod is filled with the heat conduction glue-line; Described evaporator is fixed on the lead-out wire of conducting rod; Be filled with evaporative cooling liquid in the evaporator; Described condenser is hollow metallic cavity; Described evaporator links to each other with the liquid back pipe road by outlet pipe with condenser, and described pipeline is that insulating material consists of; The installation site of condenser is higher than evaporator.
2. vacuum switch according to claim 1 is characterized in that: comprise one section telescoping tube that is made of bellows or flexible pipe in the pipeline of described moving contact side.
3. vacuum switch according to claim 1 is characterized in that: described evaporator inside includes the copper pipes of the parallel installation of many groups, and the top of organizing copper pipe interconnects more, and the bottom also interconnects.
4. vacuum switch according to claim 1, it is characterized in that: described evaporator is the canister of opening, and both ends open is welded on the conducting rod, jointly consists of annular seal space with conducting rod; Described conducting rod and evaporator consist of the smooth surface of seal chamber part or fluted jointly.
5. vacuum switch according to claim 1, it is characterized in that: during described vacuum switch at right angle setting, the position of described condenser is lower than evaporator, and evaporator is provided with capillary pipe structure near the inboard of conducting rod.
6. vacuum switch according to claim 1, it is characterized in that: the described evaporator that is installed in the first side of movable contact moves with moving contact.
7. vacuum switch according to claim 1, it is characterized in that: described cooling system is arranged on the first side of stationary contact and the first side of movable contact simultaneously, or only is arranged on fixed contact or a moving contact side wherein; In the described cooling system, condenser of each evaporator arrangement, or two evaporators share a condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100047677A CN103050330A (en) | 2013-01-06 | 2013-01-06 | Vacuum switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100047677A CN103050330A (en) | 2013-01-06 | 2013-01-06 | Vacuum switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103050330A true CN103050330A (en) | 2013-04-17 |
Family
ID=48062937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100047677A Pending CN103050330A (en) | 2013-01-06 | 2013-01-06 | Vacuum switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103050330A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840574A (en) * | 2014-03-31 | 2014-06-04 | 北京建筑大学 | Switched reluctance motor |
| CN106876211A (en) * | 2017-04-24 | 2017-06-20 | 淮海工学院 | A kind of vacuum interrupter |
| CN109075550A (en) * | 2016-05-02 | 2018-12-21 | Abb瑞士股份有限公司 | Generator contactor with cooling device |
| CN114188191A (en) * | 2021-10-29 | 2022-03-15 | 华为数字能源技术有限公司 | Power distribution module and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101080792A (en) * | 2004-12-20 | 2007-11-28 | Abb研究有限公司 | Vacuum switch having a great current carrying capacity |
| CN101320651A (en) * | 2008-07-11 | 2008-12-10 | 中国科学院电工研究所 | Heat pipe type vacuum switch |
| US20090255794A1 (en) * | 2005-03-03 | 2009-10-15 | Siemens Aktiengesellschaft | Switching Device with a Heat Pipe |
| CN202209824U (en) * | 2011-09-18 | 2012-05-02 | Tcl空调器(中山)有限公司 | Evaporator |
| US20120199322A1 (en) * | 2009-10-26 | 2012-08-09 | Alstom Technology Ltd | Cooling method and device for cooling a medium-voltage electrical installation in a protective sheath |
-
2013
- 2013-01-06 CN CN2013100047677A patent/CN103050330A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101080792A (en) * | 2004-12-20 | 2007-11-28 | Abb研究有限公司 | Vacuum switch having a great current carrying capacity |
| US20090255794A1 (en) * | 2005-03-03 | 2009-10-15 | Siemens Aktiengesellschaft | Switching Device with a Heat Pipe |
| CN101320651A (en) * | 2008-07-11 | 2008-12-10 | 中国科学院电工研究所 | Heat pipe type vacuum switch |
| US20120199322A1 (en) * | 2009-10-26 | 2012-08-09 | Alstom Technology Ltd | Cooling method and device for cooling a medium-voltage electrical installation in a protective sheath |
| CN202209824U (en) * | 2011-09-18 | 2012-05-02 | Tcl空调器(中山)有限公司 | Evaporator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840574A (en) * | 2014-03-31 | 2014-06-04 | 北京建筑大学 | Switched reluctance motor |
| CN109075550A (en) * | 2016-05-02 | 2018-12-21 | Abb瑞士股份有限公司 | Generator contactor with cooling device |
| CN109075550B (en) * | 2016-05-02 | 2020-07-07 | Abb电网瑞士股份公司 | Generator switch with cooling device |
| CN106876211A (en) * | 2017-04-24 | 2017-06-20 | 淮海工学院 | A kind of vacuum interrupter |
| CN114188191A (en) * | 2021-10-29 | 2022-03-15 | 华为数字能源技术有限公司 | Power distribution module and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103050330A (en) | Vacuum switch | |
| CN101320651B (en) | Heat pipe type vacuum switch | |
| CN108882654B (en) | Phase change cooling system, cooling system and converter cabinet cooling system | |
| US10222114B2 (en) | Semiconductor refrigerator | |
| CN103629851A (en) | Air cooling and liquid cooling dual-purpose heat radiator | |
| CN104197612B (en) | A kind of high efficiency and heat radiation assembly of semiconductor freezer | |
| CN105281198A (en) | Semiconductor laser device heat management device | |
| CN103730705A (en) | Super-capacity lithium ion battery pack with heat-transfer oil circulating radiating device | |
| CN102562484A (en) | Radiating device of wind power generation water cooling system and water cooling system | |
| CN103208356B (en) | A kind of gas-insulated power transformer of heat pipe cooling | |
| US20150300693A1 (en) | Heat Storage Tank Used In Solar Heat Power System, Solar Heat Dynamo Used Therein And Solar Heat Power System Including The Same | |
| CN106403073A (en) | Cooling device | |
| CN116014985A (en) | Additional hot path enhanced cooling structure of high-speed rail permanent magnet motor based on heat pipe | |
| CN106683821B (en) | A kind of cold-junction container for helium gas cooling | |
| CN104779548A (en) | Enclosed switchgear provided with liquid nitrogen cooling circulation system | |
| CN207883594U (en) | A kind of high efficiency and heat radiation formula pole | |
| CN216871952U (en) | Phase change cooled IGBT module | |
| CN102401506A (en) | Heat pipe and TEC (Thermoelectric Cooler) combined heat dissipation device | |
| CN209588448U (en) | Heat exchanger | |
| CN209877378U (en) | High-efficient condensing chamber is used to flue gas condenser | |
| CN114156249A (en) | Phase change cooled IGBT module | |
| CN209541508U (en) | A kind of heat pipe heat exchanging external member | |
| JP7019042B2 (en) | Superconducting magnet | |
| KR101065143B1 (en) | Device for collecting thermal energy of solar | |
| CN211184716U (en) | Energy-concerving and environment-protective heat exchanger for electric cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130417 |