CN214542008U - Double-break vacuum circuit breaker pole - Google Patents
Double-break vacuum circuit breaker pole Download PDFInfo
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- CN214542008U CN214542008U CN202120591159.0U CN202120591159U CN214542008U CN 214542008 U CN214542008 U CN 214542008U CN 202120591159 U CN202120591159 U CN 202120591159U CN 214542008 U CN214542008 U CN 214542008U
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- vacuum
- vacuum interrupter
- circuit breaker
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- extinguishing chamber
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- 230000003068 static effect Effects 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 abstract description 14
- 238000010168 coupling process Methods 0.000 abstract description 14
- 238000005859 coupling reaction Methods 0.000 abstract description 14
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model relates to a two break vacuum circuit breaker utmost point posts, including the shell and in order to set gradually the first vacuum interrupter in the shell from last to distribution form down, first flexible coupling, second vacuum interrupter, second flexible coupling and insulating pull rod, electrically conductive end is connected on first vacuum interrupter's the static contact, first vacuum interrupter's moving contact and second vacuum interrupter's static contact are established ties mutually through first flexible coupling, second vacuum interrupter's moving contact and second flexible coupling are established ties mutually through insulating pull rod, first vacuum interrupter's moving contact and second vacuum interrupter's moving contact are established ties mutually through the sectional shelf mutually, second flexible coupling and electrically conductive end are established ties mutually down. Realize two fractures through arranging two explosion chambers perpendicular series connection to it is strong to form a section breaking capacity, and insulating level is high, and simple structure, small two-break vacuum circuit breaker utmost point post, it is high to effectively solve single fracture vacuum circuit breaker heavy breakdown probability, problem that the probability of relighting is high.
Description
Technical Field
The utility model relates to a circuit breaker field, concretely relates to two break vacuum circuit breaker utmost point posts.
Background
Transient Recovery Voltage (TRV) is one of inherent characteristics existing in a power network and is an important factor influencing the on-off performance of a circuit breaker, a pole adopted by a conventional circuit breaker is of a single-break type, and when the conventional circuit breaker usually and temporarily endures the transient recovery voltage, breakdown failure is easy to occur, so that a restriking accident is caused, and meanwhile, the single-break type pole has the defects of low insulation level, poor on-off performance and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a two-break vacuum circuit breaker utmost point post is provided to overcome not enough among the above-mentioned prior art.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a two outage vacuum circuit breaker utmost point posts, including the shell and in order to set gradually the first vacuum interrupter in the shell from last to distributing form down, first flexible coupling, the second vacuum interrupter, second flexible coupling and insulating pull rod, electrically conductive end is connected on the static contact of first vacuum interrupter, the moving contact of first vacuum interrupter is established ties mutually through first flexible coupling with the static contact of second vacuum interrupter, the moving contact of second vacuum interrupter is established ties mutually through insulating pull rod with the second flexible coupling, the moving contact of first vacuum interrupter is established ties mutually through the sectional shelf with the moving contact of second vacuum interrupter, the second flexible coupling is established ties mutually with electrically conductive end down.
The utility model has the advantages that: the double-fracture vacuum circuit breaker pole is formed by vertically and serially arranging the two arc extinguish chambers, so that the double-fracture vacuum circuit breaker pole is strong in breaking capacity, high in insulation level, simple in structure and small in size, and the problems that a single-fracture vacuum circuit breaker is high in re-breakdown probability and re-burning probability are effectively solved;
the first vacuum arc-extinguishing chamber and the second vacuum arc-extinguishing chamber are vertically arranged in one shell through structural arrangement, so that the structure is very simple, the movement process only needs to be carried out vertically, vertically and downwardly, the complex transmission is reduced, and the circuit breaker is simpler and more reliable to work;
the breaking capacity of the double-fracture arranged circuit breaker is more than 2 times of that of a single fracture, and in the breaking process of the double-fracture arranged circuit breaker, under the condition that the first gap breaks down, the other gap usually temporarily endures the whole Transient Recovery Voltage (TRV) and does not cause the two gaps to break down finally, so that the safety is improved.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, the combined support comprises an upper mounting plate, a lower mounting plate and bolts, wherein the moving contacts of the upper mounting plate, the first flexible connection and the first vacuum arc-extinguishing chamber are connected in series through screws, the moving contacts of the lower mounting plate, the second flexible connection and the second vacuum arc-extinguishing chamber are connected in series through insulating pull rods, and the upper mounting plate is connected with the lower mounting plate through a plurality of bolts.
Adopt above-mentioned further beneficial effect to do: simple structure, simple to operate can effectively ensure the linkage of two vacuum interrupter.
Further, the shell is formed by assembling an upper shell, a middle shell and a lower shell in a detachable mode, the first vacuum arc-extinguishing chamber is located in the upper shell, the second vacuum arc-extinguishing chamber is located in the middle shell, and the lower conducting end and the insulating pull rod are located in the lower shell.
Adopt above-mentioned further beneficial effect to do: the multistage formula structure can reduce the processing degree of difficulty, and it is convenient to maintain.
Further, the upper shell and the middle shell are in threaded connection; the middle shell is connected with the lower shell through threads.
Adopt above-mentioned further beneficial effect to do: the dismouting is simple, and stability is good.
Furthermore, two wire outlet ports are symmetrically arranged on the lower shell at an included angle of 180 degrees, one of the two wire outlet ports is provided with a lower conductive end, and the other wire outlet port is detachably connected with an insulating end cover.
Adopt above-mentioned further beneficial effect to do: through two outgoing line ports of symmetrical design for the general casing of singly going out utmost point post and two play utmost point posts all is same kind of structure, just becomes a singly going out utmost point post in general casing in addition insulating end cover, can the mutual replacement in the use, and the commonality is strong, and the mould is small in quantity, and the part kind is few, and the die sinking cost is low, maintains to use succinctly high-efficient.
Drawings
Fig. 1 is a structural diagram of a double break vacuum circuit breaker pole.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the shell, 110, the upper housing, 120, the middle housing, 130, the lower housing, 131, the outlet port, 132, the insulating end cover, 2, the first vacuum interrupter, 3, the first flexible coupling, 4, the second vacuum interrupter, 5, the second flexible coupling, 6, the insulating pull rod, 7, the upper conductive end, 8, the combined support, 810, the upper mounting panel, 820, the lower mounting panel, 830, the bolt, 9, the lower conductive end.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1, a double-break vacuum circuit breaker pole comprises a housing 1, a first vacuum arc-extinguishing chamber 2, a first flexible connection 3, a second vacuum arc-extinguishing chamber 4, a second flexible connection 5, an insulating pull rod 6, an upper conductive end 7, a combined bracket 8 and a lower conductive end 9,
wherein, first vacuum interrupter 2 and second vacuum interrupter 4 are fixed in shell 1 from last to down in proper order, the upper end of shell 1 sets up the last electrically conductive end 7 of being connected with the static contact of first vacuum interrupter 2, the moving contact of first vacuum interrupter 2 and the static contact of second vacuum interrupter 4 are established ties mutually through first flexible coupling 3, the moving contact of second vacuum interrupter 4 and lower electrically conductive end 9 are established ties mutually through second flexible coupling 5, the moving contact of second vacuum interrupter 4 and continuous insulating pull rod 6, the moving contact of first vacuum interrupter 2 and the moving contact of second vacuum interrupter 4 are established ties mutually through composite support 8.
Example 2
As shown in fig. 1, this embodiment is a further improvement on embodiment 1, and specifically includes the following steps:
the combined support 8 comprises an upper mounting plate 810, a lower mounting plate 820 and bolts 830, the moving contacts of the upper mounting plate 810, the first flexible connection 3 and the first vacuum arc-extinguishing chamber 2 are connected in series through screws, the moving contacts of the lower mounting plate 820, the second flexible connection 5 and the second vacuum arc-extinguishing chamber 4 are connected in series through an insulating pull rod 6, and the upper mounting plate 810 and the lower mounting plate 820 are connected through a plurality of bolts 830.
As shown in the drawing, the bolt 830 includes a screw and a nut, the upper end of the screw is in threaded connection with the upper mounting plate 810, the lower end of the screw penetrates through the lower mounting plate 820, the nuts screwed with the screw are disposed above and below the lower mounting plate 820, and the screw is fixedly connected with the lower mounting plate 820 through the nuts above and below the lower mounting plate 820.
Example 3
As shown in fig. 1, this embodiment is a further improvement on embodiment 1 or 2, and specifically includes the following steps:
the shell 1 is formed by detachably assembling an upper shell 110, a middle shell 120 and a lower shell 130, the first vacuum arc-extinguishing chamber 2 is positioned in the upper shell 110, the second vacuum arc-extinguishing chamber 4 is positioned in the middle shell 120, and the lower conductive end 9 and the insulating pull rod 6 are positioned in the lower shell 130.
Example 4
As shown in fig. 1, this embodiment is a further improvement on embodiment 3, and specifically includes the following steps:
the upper shell 110 is connected with the middle shell 120 by screw threads; the middle housing 120 and the lower housing 130 are screwed, but other detachable connections, such as bolts, are not excluded.
Example 5
As shown in fig. 1, this embodiment is a further improvement on embodiment 3 or 4, and specifically includes the following steps:
two outlet ports 131 are symmetrically arranged on the lower shell 130 at an included angle of 180 degrees, one outlet port 131 of the two outlet ports 131 is provided with a lower conductive end 9, the other outlet port 131 is detachably connected with an insulating end cover 132, and one outlet port 131 can be selected to be installed with the lower conductive end 9 according to requirements during use.
When in work: the insulating pull rod 6 is driven to move linearly up and down under the action of the operating mechanism to realize the synchronous separation and combination of the first vacuum arc-extinguishing chamber 2 and the second vacuum arc-extinguishing chamber 4, so that the double fracture of the pole of the circuit breaker is realized, and the first vacuum arc-extinguishing chamber 2 and the second vacuum arc-extinguishing chamber 4 are vertically arranged in the shell 1 due to the structural arrangement, so that the structure is very simple; the movement process only needs to move vertically and vertically, so that the complex transmission is reduced, and the circuit breaker is simpler and more reliable to work.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (5)
1. A double-break vacuum circuit breaker pole is characterized by comprising a shell (1), a first vacuum arc-extinguishing chamber (2), a first flexible connection (3), a second vacuum arc-extinguishing chamber (4), a second flexible connection (5) and an insulating pull rod (6) which are sequentially arranged in the shell (1) from top to bottom in a distributed mode, wherein a static contact of the first vacuum arc-extinguishing chamber (2) is connected with an upper conductive end (7), a moving contact of the first vacuum arc-extinguishing chamber (2) is connected with a static contact of the second vacuum arc-extinguishing chamber (4) in series through the first flexible connection (3), a moving contact of the second vacuum arc-extinguishing chamber (4) is connected with the second flexible connection (5) in series through the insulating pull rod (6), the moving contact of the first vacuum arc-extinguishing chamber (2) is connected with the moving contact of the second vacuum arc-extinguishing chamber (4) in series through a combined support (8), the second flexible connection (5) is connected with the lower conductive end (9) in series.
2. The double-break vacuum circuit breaker pole according to claim 1, characterized in that the combined support (8) comprises an upper mounting plate (810), a lower mounting plate (820) and bolts (830), the upper mounting plate (810), the first flexible connection (3) and the movable contact of the first vacuum interrupter (2) are connected in series through screws, the lower mounting plate (820), the second flexible connection (5) and the movable contact of the second vacuum interrupter (4) are connected in series through an insulating pull rod (6), and the upper mounting plate (810) and the lower mounting plate (820) are connected through a plurality of bolts (830).
3. A double break vacuum circuit breaker pole according to claim 2, characterized in that the housing (1) is assembled detachably from an upper housing (110), a middle housing (120) and a lower housing (130), the first vacuum interrupter (2) is in the upper housing (110), the second vacuum interrupter (4) is in the middle housing (120), the lower conducting end (9) and the insulating tie rod (6) are in the lower housing (130).
4. A dual-break vacuum interrupter pole according to claim 3, characterized in that the upper housing (110) is screwed to the middle housing (120); the middle shell (120) is in threaded connection with the lower shell (130).
5. A double-break vacuum interrupter pole according to claim 3 or 4, characterized in that the lower housing (130) is symmetrically provided with two outlet ports (131) at an angle of 180 °, one of the two outlet ports (131) being provided with the lower conducting terminal (9) and the other being detachably connected to an insulating end cap (132).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120591159.0U CN214542008U (en) | 2021-03-23 | 2021-03-23 | Double-break vacuum circuit breaker pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120591159.0U CN214542008U (en) | 2021-03-23 | 2021-03-23 | Double-break vacuum circuit breaker pole |
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| Publication Number | Publication Date |
|---|---|
| CN214542008U true CN214542008U (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120591159.0U Active CN214542008U (en) | 2021-03-23 | 2021-03-23 | Double-break vacuum circuit breaker pole |
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| CN (1) | CN214542008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117810045A (en) * | 2024-03-01 | 2024-04-02 | 霍立克电气有限公司 | Arc extinguishing structure of circuit breaker |
-
2021
- 2021-03-23 CN CN202120591159.0U patent/CN214542008U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117810045A (en) * | 2024-03-01 | 2024-04-02 | 霍立克电气有限公司 | Arc extinguishing structure of circuit breaker |
| CN117810045B (en) * | 2024-03-01 | 2024-04-30 | 霍立克电气有限公司 | Arc extinguishing structure of circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A double-break vacuum circuit breaker pole Effective date of registration: 20220829 Granted publication date: 20211029 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: HOLIC ELECTRICAL TECHNOLOGY CO.,LTD. Registration number: Y2022420000280 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231024 Granted publication date: 20211029 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: HOLIC ELECTRICAL TECHNOLOGY CO.,LTD. Registration number: Y2022420000280 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A double break vacuum circuit breaker pole Granted publication date: 20211029 Pledgee: Wuhan Optics Valley Small and Medium Duty Venture Capital Co.,Ltd. Pledgor: HOLIC ELECTRICAL TECHNOLOGY CO.,LTD. Registration number: Y2024980014616 |