CN205452218U - Circuit breaker explosion chamber seal structure - Google Patents
Circuit breaker explosion chamber seal structure Download PDFInfo
- Publication number
- CN205452218U CN205452218U CN201620117580.7U CN201620117580U CN205452218U CN 205452218 U CN205452218 U CN 205452218U CN 201620117580 U CN201620117580 U CN 201620117580U CN 205452218 U CN205452218 U CN 205452218U
- Authority
- CN
- China
- Prior art keywords
- moving contact
- arc
- main shaft
- circuit breaker
- afterbody
- 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.)
- Withdrawn - After Issue
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model provides a circuit breaker explosion chamber seal structure, it includes moving contact (1), main shaft (2), installing support (3) and base (4), installing support (3) are adorned on base (4), install moving contact (1) can wind main shaft (2) swing, its characterized in that on main shaft (2): moving contact (1) afterbody is equipped with to seal and covers (5), and sealed lid (5) can play to seal and act on the space between moving contact (1) afterbody and main shaft (2), main shaft (2) go up and moving contact (1) cooperation department is equipped with sealing (201), be equipped with sealed cowling (6) on installing support (3), sealed cowling (6) and sealing (201) combined action can separate moving contact (1) upper portion and arc extinguishing region. The utility model discloses the entering main shaft end that makes high -pressure gas try one's best fewly makes in the faster entering explosion chamber of electric arc and extinguishes, reduces charged particle by a wide margin and gets into the regional phenomenon of main shaft to play protection sound contact, improve circuit breaker life's purpose.
Description
Technical field
This utility model belongs to low voltage electrical apparatus technology field; seal structure particularly to a kind of arc-extinguishing chamber of circuit breaker, make the entrance spindle end that gases at high pressure are tried one's best few, promote electric arc enter faster in arc-chutes and extinguish; thus play protection dynamic/static contact, improve the purpose in chopper service life.
Background technology
Chopper is the pith in electrical power distribution apparatus, is mainly used in industrial low-voltage power system, is used for connecting and electric current in disjunction mains-power circuit and protection circuit and power-supply device are from the harm of the faults such as overload, under-voltage, short circuit, single-phase earthing.
Chopper carries out what the function of disjunction was mainly completed by the arc-chutes being arranged in chopper to overload or short circuit current.When the electric current that breaks down in circuit; and when current value exceedes the setting protection domain of intelligent controller; driving operating mechanism action, make the dynamic and static contact of chopper disconnect rapidly, now the voltage between dynamic and static contact causes air dielectric electric discharge thus produces high-temperature electric arc.Electric arc causes the air themperature in arc-control device to steeply rise in combustion thus accelerates air ionization.On the other hand, under the promotion of electric arc magnetic field in arc-chutes and hydrodynamic effect, being separated into multiple short arc by multiple arc grid, rely on the deionization effect of metal arc sheet strengthening electric arc, electric arc diminishes and voltage raises rapidly, makes arc extinction.
As shown in Figure 1, the arc-chutes of existing chopper are substantially near spindle end and open wide or half opening-wide state, its structure is by pedestal, arc-chutes, main shaft, contact chip, mechanism is constituted, it is a narrow slit with the contact chip place of cooperation on pedestal, moving contact moves in this narrow slit and realizes on/off switch function, arc-chutes region is also linked together by this narrow slit with main shaft region, the high heat and the hyperbar that produce when disjunction can move along narrow slit, bring into the main shaft region such as charged particle simultaneously, or take in other phases, other part such as it is flexible coupling according to becoming phase fault phenomenon or scaling loss, the chopper life-span is produced extreme influence；Extinguishing simultaneously for electric arc is also the most disadvantageous, causes the breaking capacity of chopper to reduce.
Utility model content
It is unenclosed construction that the purpose of this utility model is aiming at existing arc-extinguishing chamber of circuit breaker; poor sealing performance; cause phase fault or burn out part; reduce the defect in chopper life-span; there is provided a kind of arc-extinguishing chamber of circuit breaker to seal structure, make the entrance spindle end that gases at high pressure are tried one's best few, promote electric arc enter faster in arc-chutes and extinguish; thus play protection dynamic/static contact, improve the purpose in chopper service life.
Technical scheme
In order to realize above-mentioned technical purpose, a kind of arc-extinguishing chamber of circuit breaker of this utility model design seals structure, it includes moving contact, main shaft, mounting bracket and pedestal, mounting bracket is contained on pedestal, described moving contact is arranged on main shaft can be around spindle swing, it is characterized in that: described moving contact afterbody is equipped with sealing lid, seal lid and sealing function can be played in the space between moving contact afterbody and main shaft, it is provided with sealing with the moving contact place of cooperation on described main shaft, equipped with seal closure in described mounting bracket, seal closure and sealing jointly act on and can be separated in moving contact top and arc extinguishing region, described main shaft back is provided with seal convexity, seal convexity mates can be separated in arc extinguishing region and moving contact afterbody in the overall process that moving contact is opened with the sealed groove on corresponding pedestal.
Further, described sealing lid is installed on moving contact, moving contact afterbody is provided with hole, location, sealing covers and positions corresponding position, hole and is provided with positioning boss, positioning boss puts in hole, location and realizes sealing lid and be installed on moving contact afterbody, and described sealing covers and is provided with arc sealing and can isolate moving contact afterbody and arc extinguishing region.
Further, described seal closure is inserted in the mounting groove of pedestal by mounting bracket spacing.
Further, described seal closure is provided with gear gas face, and gear gas face shield is lived moving contact upper end, described seal closure is provided with main shaft corresponding position and keeps away a breach.
Further, described seal closure is provided with slot to make way with mounting bracket locating shaft corresponding position.
Further, described sealing is arc groove, and moving contact is arc convex with its place of cooperation.
Further, described seal convexity is the semi-cylindrical hill stretched out from main shaft back, and sealed groove is the semi-circular recesses corresponding with seal convexity.
Beneficial effect
A kind of arc-extinguishing chamber of circuit breaker that this utility model provides seals structure; make the entrance spindle end that gases at high pressure are tried one's best few; electric arc is promoted to enter faster in arc-chutes and extinguish; charged particle is greatly reduced and enters main shaft region phenomenon; thus play protection dynamic/static contact, improve the purpose in chopper service life.
Accompanying drawing explanation
Accompanying drawing 1 is that existing arc-extinguishing chamber of circuit breaker seals structure.
Accompanying drawing 2 is the structural representation of this utility model embodiment.
Accompanying drawing 3 is the structural representation of pedestal in this utility model embodiment.
Accompanying drawing 4 is moving contact installation structure schematic diagram in this utility model embodiment.
Accompanying drawing 5 is the scheme of installation sealing lid in this utility model embodiment.
Accompanying drawing 6 is moving contact structure schematic diagram in this utility model embodiment.
Accompanying drawing 7 is sealing cover structure schematic diagram in this utility model embodiment.
Accompanying drawing 8 is mounting support structure schematic diagram in this utility model embodiment.
Accompanying drawing 9 is main axle structure schematic diagram in this utility model embodiment.
Accompanying drawing 10 is seal closure structural representation in this utility model embodiment.
Accompanying drawing 11 is seal closure mounting structure schematic diagram in this utility model embodiment.
Accompanying drawing 12 is that in this utility model embodiment, seal closure is not passed through mounting bracket positioning axis structure schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, this utility model is described further.
Embodiment
Such as accompanying drawing 2, 3, shown in 4 and 6, a kind of arc-extinguishing chamber of circuit breaker seals structure, it includes moving contact 1, main shaft 2, mounting bracket 3 and pedestal 4, mounting bracket 3 is contained on pedestal 4, described moving contact 1 is arranged on main shaft 2 and can swing around main shaft 2, wherein, described moving contact 1 afterbody is equipped with sealing lid 5, seal lid 5 and sealing function can be played in the space between moving contact 1 afterbody and main shaft 2, it is provided with sealing 201 with moving contact 1 place of cooperation on described main shaft 2, equipped with seal closure 6 in described mounting bracket 3, seal closure 6 and sealing 201 jointly act on and can be separated in moving contact 1 top and arc extinguishing region, as shown in Figure 9, described sealing 201 is arc groove, it is arc convex with its place of cooperation on moving contact 1.Described main shaft 2 back is provided with seal convexity 202, seal convexity 202 mates can be separated in arc extinguishing region and moving contact 1 afterbody in the overall process that moving contact is opened with the sealed groove 401 on corresponding pedestal 4, described seal convexity 202 is the semi-cylindrical hill stretched out from main shaft 2 back, and sealed groove 401 is the semi-circular recesses corresponding with seal convexity 202.
As shown in accompanying drawing 5 and 7, the described lid 5 that seals is installed on moving contact 1, moving contact 1 afterbody is provided with hole 101, location, seal and be provided with positioning boss 501 with corresponding position, hole 101, location on lid 5, positioning boss 501 puts in hole 101, location realization sealing lid 5 and is installed on moving contact 1 afterbody, and described sealing lid 5 is provided with arc sealing 502 can isolate moving contact 1 afterbody and arc extinguishing region.
As shown in accompanying drawing 8,10 and 11, described seal closure 6 is inserted in the mounting groove of pedestal 4 by mounting bracket 3 spacing.Described seal closure 6 is provided with gear gas face 601, gear gas face 601 covers moving contact 1 upper end, it is provided with main shaft 2 corresponding position on described seal closure 6 and keeps away a breach 602, it is provided with slot to make way 603 with mounting bracket 3 locating shaft corresponding position on seal closure 6, if mounting bracket 3 locating shaft does not needs guiding through seal closure 6, seal closure 6 structure is the most as shown in Figure 12.
Utility model works process is: after producing electric arc when between dynamic/static contact, the gas expansion in arc-chutes can be made, containing a lot of metallic conduction granules etc. in the gas expanded, this granule is by the main shaft in this structure, seal closure and contact chip and sealing lid stop, make, inside the entrance main shaft that charged particle tries one's best few, to prevent alternate puncturing.
A kind of arc-extinguishing chamber of circuit breaker that this utility model provides seals structure; make the entrance spindle end that gases at high pressure are tried one's best few; electric arc is promoted to enter faster in arc-chutes and extinguish; charged particle is greatly reduced and enters main shaft region phenomenon; thus play protection dynamic/static contact, improve the purpose in chopper service life.
Structure depicted in the present embodiment institute accompanying drawings, ratio, size etc., the most only in order to coordinate the content disclosed in description, understand for those skilled in the art and read, it is not limited to the enforceable qualifications of this utility model, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, under not affecting effect that this utility model can be generated by and the purpose that can reach, all should still fall in the range of the technology contents disclosed in this utility model obtains and can contain.Simultaneously, in this specification cited as " on ", D score, "left", "right", " middle ", " clockwise ", the term of " counterclockwise " etc., it is merely convenient to understanding of narration, and it is not used to limit the enforceable scope of this utility model, being altered or modified of its relativeness, changing under technology contents without essence, when being also considered as the enforceable category of this utility model.
Claims (7)
- null1. an arc-extinguishing chamber of circuit breaker seals structure，It includes moving contact (1)，Main shaft (2)，Mounting bracket (3) and pedestal (4)，Mounting bracket (3) is contained on pedestal (4)，Described moving contact (1) is arranged on main shaft (2) and can swing around main shaft (2)，It is characterized in that: described moving contact (1) afterbody is equipped with sealing lid (5)，Seal lid (5) and sealing function can be played in the space between moving contact (1) afterbody and main shaft (2)，Described main shaft (2) is upper is provided with sealing (201) with moving contact (1) place of cooperation，Equipped with seal closure (6) in described mounting bracket (3)，Moving contact (1) top and arc extinguishing region can be separated by seal closure (6)，Described main shaft (2) back is provided with seal convexity (202)，Seal convexity (202) mates can be separated in arc extinguishing region and moving contact (1) afterbody in the overall process that moving contact is opened with the sealed groove (401) on corresponding pedestal (4).
- 2. a kind of arc-extinguishing chamber of circuit breaker as claimed in claim 1 seals structure, it is characterized in that: the described lid (5) that seals is installed on moving contact (1), moving contact (1) afterbody is provided with hole, location (101), seal lid (5) and be above provided with positioning boss (501) with hole (101) corresponding position, location, positioning boss (501) puts in hole, location (101) realization sealing lid (5) and is installed on moving contact (1) afterbody, described sealing lid (5) is provided with arc sealing (502) can isolate moving contact (1) afterbody and arc extinguishing region.
- 3. a kind of arc-extinguishing chamber of circuit breaker as claimed in claim 1 seals structure, it is characterised in that: described seal closure (6) is contained in the mounting groove of pedestal (4) by mounting bracket (3) spacing.
- 4. a kind of arc-extinguishing chamber of circuit breaker as claimed in claim 1 seals structure, it is characterized in that: described seal closure (6) is provided with gear gas face (601), gear gas face (601) covers moving contact (1) upper end, and described seal closure (6) is upper and main shaft (2) corresponding position is provided with and keeps away a breach (602).
- 5. a kind of arc-extinguishing chamber of circuit breaker as claimed in claim 1 seals structure, it is characterised in that: described seal closure (6) is upper and mounting bracket (3) locating shaft corresponding position is provided with slot to make way (603).
- 6. a kind of arc-extinguishing chamber of circuit breaker as claimed in claim 1 seals structure, it is characterised in that: described sealing (201) is arc groove, and moving contact (1) is upper is arc convex with its place of cooperation.
- 7. a kind of arc-extinguishing chamber of circuit breaker as claimed in claim 1 seals structure, it is characterized in that: described seal convexity (202) is the semi-cylindrical hill stretched out from main shaft (2) back, and sealed groove (401) is the semi-circular recesses corresponding with seal convexity (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620117580.7U CN205452218U (en) | 2016-02-05 | 2016-02-05 | Circuit breaker explosion chamber seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620117580.7U CN205452218U (en) | 2016-02-05 | 2016-02-05 | Circuit breaker explosion chamber seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205452218U true CN205452218U (en) | 2016-08-10 |
Family
ID=56581436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620117580.7U Withdrawn - After Issue CN205452218U (en) | 2016-02-05 | 2016-02-05 | Circuit breaker explosion chamber seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205452218U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045967A (en) * | 2016-02-05 | 2017-08-15 | 上海良信电器股份有限公司 | A kind of arc-extinguishing chamber of circuit breaker sealing structure |
| CN108987208A (en) * | 2017-06-05 | 2018-12-11 | 周思雨 | A kind of miniature circuit breaker and its arc-control device |
-
2016
- 2016-02-05 CN CN201620117580.7U patent/CN205452218U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045967A (en) * | 2016-02-05 | 2017-08-15 | 上海良信电器股份有限公司 | A kind of arc-extinguishing chamber of circuit breaker sealing structure |
| CN107045967B (en) * | 2016-02-05 | 2019-08-20 | 上海良信电器股份有限公司 | A kind of arc-extinguishing chamber of circuit breaker sealing structure |
| CN108987208A (en) * | 2017-06-05 | 2018-12-11 | 周思雨 | A kind of miniature circuit breaker and its arc-control device |
| CN108987208B (en) * | 2017-06-05 | 2024-04-02 | 周思雨 | Miniature circuit breaker and arc extinguishing device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160810 Effective date of abandoning: 20190820 |