CN201655660U - Large-current vacuum circuit breaker - Google Patents
Large-current vacuum circuit breaker Download PDFInfo
- Publication number
- CN201655660U CN201655660U CN2010202036005U CN201020203600U CN201655660U CN 201655660 U CN201655660 U CN 201655660U CN 2010202036005 U CN2010202036005 U CN 2010202036005U CN 201020203600 U CN201020203600 U CN 201020203600U CN 201655660 U CN201655660 U CN 201655660U
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- contact arm
- insulation
- circuit breaker
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model relates to a large-current vacuum circuit breaker, which comprises three sealing electrode posts with the same structures. The large-current vacuum circuit breaker also comprises an insulation case, a vacuum arc extinguishing chamber, an upper touch arm and a lower touch arm, wherein the left end surface of the upper touch arm is connected with a heat radiation fin arranged in the insulation case, the right end of the upper touch arm is provided with an upper insulation cover, the right end of the lower touch arm is provided with a lower insulation cover, one end of an upper copper conductive belt and a lower copper conductive belt is respectively connected with the upper outer wall and the lower outer wall of the lower touch arm through screw bolts, a conductive clamp is arranged on a connecting post of the movable end of the vacuum arc extinguishing chamber, the other end of the upper copper conductive belt is fixedly connected with the side wall of the conductive clamp, the other end of the lower copper conductive belt is fixedly connected with the lower end surface of the connecting post, and the connecting post is connected with one end of an insulation connecting plate. The utility model has high safety performance and long service life, and is particularly suitable for large-current use.
Description
Technical field
The utility model relates to a kind of circuit breaker, particularly relates to a kind of high current vacuum circuit breaker.
Background technology
High-pressure vacuum breaker has been widely used in the switch cubicle, the vacuum circuit-breaker major loop mainly is made up of conduction major loop and operating mechanism, the conduction major loop develops into pole fixed sealing type structure from unenclosed construction at present, this structure is vacuum not to be had arc chamber and insulating cylinder is integrated into an overall structure, and by embedded technology vacuum is not had arc chamber and be cast in the epoxy resin, make the naked leakage conductance electricity of vacuum interrupter parts to external insulation.But produce a large amount of heats for high current vacuum circuit breaker with pole galvanic circle in running, destroy insulation system, reduce the useful life of circuit breaker, even cause the galvanic circle to be opened circuit, security incident occurs.
Summary of the invention
The purpose of this utility model provides that a kind of volume is little, insulation and perfect heat-dissipating, is applicable to the vacuum circuit-breaker of big electric current.
The technical scheme that adopts is:
A kind of high current vacuum circuit breaker comprises that A phase, B are mutually and the C cart frame and the spring operating mechanism of three incorporate poles of major loop, interior dress three-phase main shaft mutually.
The cart frame and the spring operating mechanism of interior dress three-phase main shaft are known technology.
Three integrated poles of major loop are structurally identical mutually with C mutually for A phase, B, and adorn the front of the cart frame of three-phase main shaft in being installed on respectively, and the cart frame of interior dress three-phase main shaft is fixedlyed connected with the upper surface of handcart propulsion plant by bolt.
A phase, B phase or C phase pole comprise epoxy resins insulation housing, vacuum interrupter, last contact arm, following contact arm and insulated tension pole.
Vacuum interrupter is installed in the epoxy resins insulation housing, embeds respectively in the epoxy resins insulation housing with following contact arm and go up contact arm, and the inner of last contact arm is connected with the quiet end of vacuum interrupter, and the outer end of last contact arm is equiped with insulating cover.
Be equiped with conductive clip on the joint pin of vacuum interrupter moved end, the sidewall of conductive clip is connected with an end of last copper strips, the other end of last copper strips is connected with the upper surface of following contact arm the inner, be connected with down copper strips on the lower surface of the joint pin of the moved end of vacuum interrupter, the other end of following copper strips is connected with the lower surface of following contact arm the inner, and the other end of following contact arm is equiped with insulating cover.
The described contact arm of going up is hollow contact arm with following contact arm.
Be provided with hot-air channel in the epoxy resins insulation housing, be provided with the integral heat emission sheet in the epoxy resins insulation housing, this fin is connected with last contact arm.Be provided with dust cover in described hot-flow flue exit, prevent that dust from entering.
The joint pin and the drive link of vacuum interrupter moved end are hinged, and the lower end of the other end of this drive link and the connecting plate of spring operating mechanism is hinged.
Advantage of the present utility model is:
1, compact conformation, volume are little.
2, because last contact arm and following contact arm are hollow contact arm, particularly in the epoxy resins insulation housing of pole, be provided with hot-air channel, make contact arm have big electric current can shed rapidly outside the housing by the heat that produces, good cooling effect, because last contact arm is connected with built-in fin, has further improved heat dispersion.
3, because the joint pin of vacuum interrupter moved end is connected with following contact arm by upper and lower copper strips, play good shunting action.
4, the utility model security performance height, long service life is specially adapted to big electric current and uses.
Description of drawings
Fig. 1 is a kind of example structure schematic diagram of the present utility model.
Embodiment
A kind of high current vacuum circuit breaker comprises that A phase, B are mutually and C three poles 1, cart frame 18 and spring operating mechanisms 14 and handcart propulsive mechanism 19 mutually;
Described three poles 1 are separately fixed on handcart propulsive mechanism 9 upper surfaces.
Described spring operating mechanism 17 is a known technology, Gu be not described in detail.
A phase pole comprises insulation shell 2, vacuum interrupter 3, goes up contact arm 4 and following contact arm 5, and vacuum interrupter 3 is arranged in the insulation shell 2, and last contact arm 4 and following contact arm 5 embed respectively in the insulation shell 2.B phase pole is structurally identical with A phase pole 1 with C phase pole, and the utility model technical essential is:
Last contact arm 4 left sides are connected with fin 6 in being arranged on insulation shell 2, and the right-hand member of last contact arm 4 is provided with insulating cover 7;
Following contact arm 5 right-hand members are equiped with down insulating cover 8, are connected by the end of bolt with last copper conduction band 9 and following copper conduction band 10 respectively on the upper and lower outer wall of following contact arm 5;
Last contact arm 4 and following contact arm 5 are hollow contact arm;
Be equiped with conductive clip 12 on the joint pin 11 of vacuum interrupter 3 moved ends, the above-mentioned other end of going up copper conduction band 9 is fixedlyed connected with conductive clip 12 sidewalls, the other end of following copper conduction band 10 is fixedlyed connected with the lower surface of joint pin 11, joint pin 11 is connected with insulation connecting plate 13 1 ends, and the other end of insulation connecting plate 13 and the drive link 15 of spring operating mechanism 14 are hinged;
In insulation shell 2, be provided with hot-air channel 16, be covered with dust cover 17 at the port of export of hot-air channel 16.
Claims (2)
1. a high current vacuum circuit breaker comprises three pole (1), cart frame (18) and spring operating mechanism (14) and handcart propulsive mechanisms (19) that structure is identical;
Described three poles (1) are separately fixed on handcart propulsive mechanism (9) upper surface;
A phase pole, comprise insulation shell (2), vacuum interrupter (3), go up contact arm (4) and following contact arm (5), vacuum interrupter (3) is arranged in the insulation shell (2), last contact arm (4) and following contact arm (5) embed respectively in the insulation shell (2), B phase pole is structurally identical with A phase pole (1) with C phase pole, it is characterized in that:
Last contact arm (4) the left side fin (6) interior with being arranged on insulation shell (2) is connected, and the right-hand member of last contact arm (4) is provided with insulating cover (7);
Following contact arm (5) right-hand member is equiped with down insulating cover (8), is connected with the end of last copper conduction band (9) with following copper conduction band (10) by bolt respectively on the upper and lower outer wall of following contact arm (5);
Last contact arm (4) and following contact arm (5) are hollow contact arm;
Be equiped with conductive clip (12) on the joint pin (11) of vacuum interrupter (3) moved end, the above-mentioned other end of going up copper conduction band (9) is fixedlyed connected with conductive clip (12) sidewall, the other end of following copper conduction band (10) is fixedlyed connected with the lower surface of joint pin (11), joint pin (11) is connected with insulation connecting plate (13) one ends, and the other end of insulation connecting plate (13) and the drive link (15) of spring operating mechanism (14) are hinged.
2. a kind of high current vacuum circuit breaker according to claim 1 is characterized in that the described hot-air channel (16) that is provided with in insulation shell (2), be covered with dust cover (17) at the port of export of hot-air channel (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202036005U CN201655660U (en) | 2010-05-26 | 2010-05-26 | Large-current vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202036005U CN201655660U (en) | 2010-05-26 | 2010-05-26 | Large-current vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201655660U true CN201655660U (en) | 2010-11-24 |
Family
ID=43120904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202036005U Expired - Fee Related CN201655660U (en) | 2010-05-26 | 2010-05-26 | Large-current vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201655660U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262975A (en) * | 2010-05-26 | 2011-11-30 | 沈阳飞驰电气设备有限公司 | Heavy current vacuum circuit breaker |
| CN105140815A (en) * | 2015-09-10 | 2015-12-09 | 陕西宝鼎开关有限公司 | Isolation vehicle for high-voltage switch cabinet |
| EP3171381A1 (en) * | 2015-11-20 | 2017-05-24 | Siemens Aktiengesellschaft | Contact structure of a circuit breaker |
-
2010
- 2010-05-26 CN CN2010202036005U patent/CN201655660U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262975A (en) * | 2010-05-26 | 2011-11-30 | 沈阳飞驰电气设备有限公司 | Heavy current vacuum circuit breaker |
| CN105140815A (en) * | 2015-09-10 | 2015-12-09 | 陕西宝鼎开关有限公司 | Isolation vehicle for high-voltage switch cabinet |
| EP3171381A1 (en) * | 2015-11-20 | 2017-05-24 | Siemens Aktiengesellschaft | Contact structure of a circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20180526 |