CN206312855U - A kind of AC small breaker with high breaking capacity - Google Patents
A kind of AC small breaker with high breaking capacity Download PDFInfo
- Publication number
- CN206312855U CN206312855U CN201621474609.3U CN201621474609U CN206312855U CN 206312855 U CN206312855 U CN 206312855U CN 201621474609 U CN201621474609 U CN 201621474609U CN 206312855 U CN206312855 U CN 206312855U
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- CN
- China
- Prior art keywords
- arc
- chutes
- striking
- breaking capacity
- magnetictrip
- 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.)
- Expired - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model provides a kind of AC small breaker with high breaking capacity, belongs to electrical equipment technical field.It solves the problems, such as that existing AC small breaker breaking capacity is not enough.This has the AC small breaker of high breaking capacity, including housing, handle and arc-chutes, handle is connected on the leading flank of housing, arc-chutes are arranged on the rear portion of housing cavity, miniature circuit breaker also includes magnetictrip and delayed releasing component, magnetictrip is located between handle and arc-chutes, delayed releasing component is connected with magnetictrip, and delayed releasing component is located at the top of magnetictrip and arc-chutes, also there is striking chamber between arc-chutes and delayed releasing component, there is flash barrier between striking chamber and the internal face of housing, delayed releasing component includes being made as the run-on tab of arcuation, run-on tab is covered in the top in striking chamber, and run-on tab is resisted against on flash barrier.It can improve the arc extinction performance of arc-chutes, so as to improve breaking capacity.
Description
Technical field
The utility model belongs to electrical equipment technical field, is related to a kind of miniature circuit breaker, particularly a kind of to have high score
The AC small breaker of cutting capacity.
Background technology
Also known as miniature circuit breaker, it is used for cutting miniature circuit breaker in various places such as industry, business, high-rise and residential houses
Break and connect load circuit, and disengagement failure circuit prevents fault spread from being run so as to proof load circuit safety.It is small-sized disconnected
The structure of road device mainly includes housing, contact mechanism, arc quenching system, operating mechanism and magnetic tripping mechanism, and arc quenching system includes going out
Arc chamber, arc-chutes are provided with arc extinguishing grid pieces, arc-extinguish chamber and arc striking piece；Operating mechanism include operation handle, main support, linkage unit and
Latch components；Magnetic tripping mechanism includes iron core, coil and yoke.
The arc quenching principle of arc quenching system is to advance arc-chutes by by electric arc in miniature circuit breaker, and electric arc is by arc extinguishing grid pieces point
Some segments are cut into, the purpose for extinguishing electric arc is reached using the nearly minus plate effect of electric arc.Miniature circuit breaker of the prior art
Striking effect it is preferable not enough, have impact on the breaking capacity of miniature circuit breaker.
The content of the invention
The purpose of this utility model is directed to existing technology and there is above mentioned problem, it is proposed that one kind has high breaking capacity
AC small breaker, its technical problem to be solved be how to enable AC small breaker have disjunction higher
Power.
The purpose of this utility model can be realized by following technical proposal：A kind of AC small with high breaking capacity
Breaker, including housing, handle and arc-chutes, the handle are connected on the leading flank of housing, and the arc-chutes are arranged on shell
The rear portion of intracoelomic cavity, it is characterised in that the miniature circuit breaker also includes magnetictrip and delayed releasing component, the electromagnetism
Electrical apparatus release is located between handle and arc-chutes, and the delayed releasing component is connected with magnetictrip, and delayed releasing component
Positioned at magnetictrip and the top of arc-chutes, also there is striking chamber between the arc-chutes and delayed releasing component, it is described to draw
There is flash barrier, the delayed releasing component includes being made as the run-on tab of arcuation, described to draw between arc chamber and the internal face of housing
Arc plate is covered in the top in striking chamber, and run-on tab is resisted against on flash barrier.
This AC small breaker by the run-on tab of delayed releasing component can by disjunction when the electric arc that produces quickly
It is incorporated into and enters horizontal blanking in arc-chutes, so as to improves the arc extinction performance of miniature circuit breaker.
Have several vertically in the above-mentioned AC small breaker with high breaking capacity, in the arc-chutes and
Spaced arc extinguishing grid pieces, the arc extinguishing grid pieces are respectively provided with the double-U-shaped mouth of upward opening.The arc quenching effect of double-U-shaped mouth is more preferable.
In the above-mentioned AC small breaker with high breaking capacity, adjacent two arc extinguishing grid pieces height staggeredly sets
Put.The arc extinguishing grid pieces that height is staggered coordinate double-U-shaped mouth, and arc quenching effect is more preferable.
In the above-mentioned AC small breaker with high breaking capacity, the delayed releasing component also include contact knife,
Bimetallic element, tripping, lock, connecting rod and adjustment plate, the contact knife are located at the front upper part in striking chamber, and the adjustment plate is by connection
Knot tying is connected in housing, and the front end of adjustment plate is connected with run-on tab, the rear end of adjustment plate and the rear end phase of bimetallic element
Connection, the front end of the bimetallic element and the front end of adjustment plate by copper rope flexible connection on contact knife, the tripping, lock
Button and connecting rod are connected with contact knife, and are connected by torsion spring between lock and connecting rod.
In the above-mentioned AC small breaker with high breaking capacity, the magnetictrip include coil, iron core,
Yoke, contact bar and striking iron, the coil are set on iron core, and one end of the contact bar is connected to one end of iron core, connects
The other end of feeler lever is resisted against the front end of arc-chutes, is bent into the middle part of the contact bar towards the open U-shaped chamber of iron core, described
Striking iron is arranged in U-shaped chamber.Contact bar and striking iron phase coordinate, and contact bar is fitted on the front end face of arc-chutes, striking
Effect is more preferable.
In the above-mentioned AC small breaker with high breaking capacity, the striking iron is U-shaped, and striking iron is spacious
Also towards magnetictrip, the U-shaped chamber and striking iron are located in striking chamber mouth, and flash barrier is covered in U-shaped chamber and striking iron
On.
Compared with prior art, the utility model carries out auxiliary striking, energy by delayed releasing system and magnetictrip
Enough preferably electric arc being directed in arc-chutes enters horizontal blanking, so as to improve the breaking capacity of this AC small breaker.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of arc extinguishing grid pieces in the utility model.
Fig. 3 is the structural representation of delayed releasing component in the utility model.
Fig. 4 is the broken section structural representation of magnetictrip in the utility model.
In figure, 1, housing；2nd, handle；3rd, arc-chutes；4th, magnetictrip；5th, delayed releasing component；6th, striking chamber；7th, every
Arc plate；8th, run-on tab；9th, arc extinguishing grid pieces；10th, double-U-shaped mouth；11st, contact knife；12nd, bimetallic element；13rd, tripping；14th, latch；15、
Connecting rod；16th, adjustment plate；17th, joint cover；18th, torsion spring；19th, coil；20th, iron core；21st, yoke；22nd, bar is contacted；23rd, striking iron；
24th, U-shaped chamber；25th, push rod；251st, convex edge；26th, spring；27th, armature.
Specific embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
Reference picture 1, a kind of AC small breaker with high breaking capacity, including housing 1, handle 2 and arc-chutes 3,
Handle 2 is connected on the leading flank of housing 1, and arc-chutes 3 are arranged on the rear portion of the inner chamber of housing 1, and miniature circuit breaker also includes electromagnetism
Electrical apparatus release 4 and delayed releasing component 5, magnetictrip 4 are located between handle 2 and arc-chutes 3, delayed releasing component 5 and electromagnetism
Electrical apparatus release 4 is connected, and delayed releasing component 5 is located at the top of magnetictrip 4 and arc-chutes 3, arc-chutes 3 and delayed releasing
Also there is striking chamber 6 between component 5, there is flash barrier 7 between striking chamber 6 and the internal face of housing 1, delayed releasing component 5 is wrapped
The run-on tab 8 for being made as arcuation is included, run-on tab 8 is covered in the top in striking chamber 6, and run-on tab 8 is resisted against on flash barrier 7.
Concrete structure is as follows, with reference to 2, has several vertical and spaced arc extinguishing grid pieces 9, arc extinguishing in arc-chutes 3
Grid 9 is respectively provided with the double-U-shaped mouth 10 of upward opening, and two adjacent height of arc extinguishing grid pieces 9 are staggered.What height was staggered
Arc extinguishing grid pieces 9 coordinate double-U-shaped mouth 10, arc quenching effect more preferably, and to cause that this miniature circuit breaker has more preferable breaking capacity.
With reference to Fig. 3, delayed releasing component 5 also includes contact knife 11, bimetallic element 12, tripping 13, the lock 14, and of connecting rod 15
Adjustment plate 16, contact knife 11 is located at the front upper part in striking chamber 6, and adjustment plate 16 is connected in housing 1 by joint cover 17, adjustment plate 16
Front end be connected with run-on tab 8, the rear end of adjustment plate 16 is connected with the rear end of bimetallic element 12, bimetallic element 12
The front end of front end and adjustment plate 16 by copper rope flexible connection on contact knife 11, tripping 13, lock 14 and connecting rod 15 with touch
Knife 11 is connected, and is connected by torsion spring 18 between lock 14 and connecting rod 15.
With reference to Fig. 4, magnetictrip 4 include coil 19, iron core 20, yoke 21, contact bar 22, striking iron 23, push rod 25,
Spring 26 and armature 27, coil 19 are set on iron core 20, and the one end for contacting bar 22 is connected to one end of iron core 20, contacts bar 22
The other end be resisted against the front end of arc-chutes 3, the middle part for contacting bar 22 is bent into U-shaped chamber 24 towards the opening of iron core 20, striking
Iron 23 is arranged in U-shaped chamber 24, and striking iron 23 is U-shaped, and striking iron 23 opening also towards magnetictrip 4, the He of U-shaped chamber 24
Striking iron 23 is located in striking chamber 6, and flash barrier 7 is covered on U-shaped chamber 24 and striking iron 23.Iron core 20 is set in push rod 25
Front end, the rear end of push rod 25 has a circle convex edge 251, and armature 27 is fixed and is set on convex edge 251, and the front end of spring 26 is resisted against
On the rear end face of iron core 20, the rear end of spring 26 is resisted against on the front end face of convex edge 141.Contact bar 22 and striking iron 23 match
Close, and contact bar 22 is fitted on the front end face of arc-chutes 3, more preferably, this small fragments utensil has high breaking capacity to striking effect.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (7)
1. a kind of AC small breaker with high breaking capacity, including housing (1), handle (2) and arc-chutes (3), it is described
Handle (2) is connected on the leading flank of housing (1), and the arc-chutes (3) are arranged on the rear portion of housing (1) inner chamber, and its feature exists
In the miniature circuit breaker also includes magnetictrip (4) and delayed releasing component (5), and the magnetictrip (4) is positioned at hand
Between handle (2) and arc-chutes (3), the delayed releasing component (5) is connected with magnetictrip (4), and delayed releasing component
(5) also have between magnetictrip (4) and the top of arc-chutes (3), the arc-chutes (3) and delayed releasing component (5)
There is striking chamber (6), there is flash barrier (7), the delayed releasing component between the striking chamber (6) and the internal face of housing (1)
(5) including being made as the run-on tab (8) of arcuation, the run-on tab (8) is covered in the top of striking chamber (6), and run-on tab (8) against
On flash barrier (7).
2. the AC small breaker with high breaking capacity according to claim 1, it is characterised in that the arc-chutes
(3) there are several vertical and spaced arc extinguishing grid pieces (9), the arc extinguishing grid pieces (9) are respectively provided with double U of upward opening in
Type mouthful (10).
3. the AC small breaker with high breaking capacity according to claim 2, it is characterised in that adjacent two
Arc extinguishing grid pieces (9) are just staggered.
4. the AC small breaker with high breaking capacity according to claim 1 or 2 or 3, it is characterised in that described
Delayed releasing component (5) also includes contact knife (11), bimetallic element (12), tripping (13), lock (14), connecting rod (15) and adjustment
Plate (16), positioned at the front upper part of striking chamber (6), the adjustment plate (16) is connected in shell to the contact knife (11) by joint cover (17)
In body (1), the front end of adjustment plate (16) is connected with run-on tab (8), rear end and the bimetallic element (12) of adjustment plate (16)
Rear end is connected, and the front end of the bimetallic element (12) and the front end of adjustment plate (16) pass through copper rope flexible connection in contact knife
(11) on, the tripping (13), lock (14) and connecting rod (15) are connected with contact knife (11), and lock (14) and connecting rod (15)
Between be connected by torsion spring (18).
5. the AC small breaker with high breaking capacity according to claim 1 or 2 or 3, it is characterised in that described
Magnetictrip (4) includes coil (19), iron core (20), yoke (21), contact bar (22) and striking iron (23), the coil
(19) it is set on iron core (20), one end of contact bar (22) is connected to one end of iron core (20), contacts the another of bar (22)
One end is resisted against the front end of arc-chutes (3), is bent into the middle part of the contact bar (22) towards the open U-shaped chamber of iron core (20)
(24), the striking iron (23) is arranged in U-shaped chamber (24).
6. the AC small breaker with high breaking capacity according to claim 5, it is characterised in that the electromagnetism takes off
Button device (4) also includes push rod (25), spring (26) and armature (27), and the iron core (20) is set in the front end of push rod (25), institute
Stating the rear end of push rod (25) has circle convex edge (251), and armature (27) fixation is set on convex edge (251), the spring
(26) front end is resisted against on the rear end face of iron core (20), and the rear end of spring (26) is resisted against on the front end face of convex edge (141).
7. the AC small breaker with high breaking capacity according to claim 5, it is characterised in that the striking iron
(23) it is U-shaped, and striking iron (23) opening also towards magnetictrip (4), the U-shaped chamber (24) and striking iron (23) are located at
In striking chamber (6), and flash barrier (7) is covered on U-shaped chamber (24) and striking iron (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621474609.3U CN206312855U (en) | 2016-12-30 | 2016-12-30 | A kind of AC small breaker with high breaking capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621474609.3U CN206312855U (en) | 2016-12-30 | 2016-12-30 | A kind of AC small breaker with high breaking capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206312855U true CN206312855U (en) | 2017-07-07 |
Family
ID=59248213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621474609.3U Expired - Fee Related CN206312855U (en) | 2016-12-30 | 2016-12-30 | A kind of AC small breaker with high breaking capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206312855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107452572A (en) * | 2017-08-15 | 2017-12-08 | 国网江苏省电力公司南京供电公司 | Arc Distinguishing Device for Circuit Breakers |
-
2016
- 2016-12-30 CN CN201621474609.3U patent/CN206312855U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107452572A (en) * | 2017-08-15 | 2017-12-08 | 国网江苏省电力公司南京供电公司 | Arc Distinguishing Device for Circuit Breakers |
| CN107452572B (en) * | 2017-08-15 | 2019-12-17 | 国网江苏省电力公司南京供电公司 | Arc extinguishing device of circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 Termination date: 20191230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |