CN208352246U - A kind of arc quenching system of miniature circuit breaker - Google Patents
A kind of arc quenching system of miniature circuit breaker Download PDFInfo
- Publication number
- CN208352246U CN208352246U CN201820729718.8U CN201820729718U CN208352246U CN 208352246 U CN208352246 U CN 208352246U CN 201820729718 U CN201820729718 U CN 201820729718U CN 208352246 U CN208352246 U CN 208352246U
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- arc
- chutes
- striking
- moving contact
- circuit breaker
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Abstract
The utility model discloses a kind of arc quenching systems of miniature circuit breaker, including being arranged in the intracorporal arc-chutes of shell, moving contact, static contact and arc striking component, the arc striking component is fixedly connected on the inside bottom surface of arc-chutes and extends the opening of arc-chutes, the arc striking component includes the first arc-striking structure extended to below the conducting end that moving contact is in contact with static contact, and the static contact includes the second arc-striking structure extended to the opening side of the arc-chutes；The conducting end opposite position of the bimetallic piece and the moving contact is equipped with one layer of insulator, plays the role of completely cutting off electric arc.It is arranged using the above structure, electric arc on moving contact is guided on the first arc-striking structure, it is introduced directly into arc-chutes by arc striking component, to ensure that electric arc does not flow through bimetallic piece, both while having can guarantee moving contact striking, it is avoided that bimetallic piece again and its is flexible coupling by electrical arc erosion, securely and reliably, promotes the disjunction tripping ability and service life of breaker.
Description
Technical field
The utility model relates to breaker technical fields, and in particular to a kind of arc quenching system of miniature circuit breaker.
Background technique
Miniature circuit breaker is a kind of low pressure being used for the overload of route, short circuit, overcurrent, decompression, low-voltage protection
Electric appliance can be switched off and on load circuit.The dynamic and static contact of miniature circuit breaker can generate electric arc in breaking course, to protect
Miniature circuit breaker operational safety is demonstrate,proved, arc quenching system is usually set inside it to extinguish the electric arc that dynamic and static contact generates, to reach
Arc quenching effect.
The arc quenching system of existing common a kind of miniature circuit breaker, as shown in fig. 6, including arc-chutes 01, moving contact, stationary contact
Head leads arc plate 02, leads 02 one end of arc plate and is stuck between 04 side wall of arc-chutes 01 and shell, the other end is welded on bimetal leaf 03
On, arc extinguishing process are as follows: cause electric arc when the dynamic and static contact of breaker is opened, wherein a part of electric arc draws from static contact direction
Enter in arc-chutes 01, another part electric arc then attracts from moving contact one end by bimetal leaf 03, welds along with bimetal leaf 03
Arc plate 02 of leading lead in arc-chutes 01.But because electric arc is the plasma of high-temperature electric conduction, and bimetal leaf is resistant to high temperature
Ability be it is limited, after especially electric arc is restriked, not only can scaling loss contact, but also be easy scaling loss bimetal leaf, make
It is welded on being flexible coupling for moving contact of connection on bimetal leaf to be also easy to blow, causes breaker that can not be connected, to influence open circuit
The disjunction tripping ability and service life of device.
Utility model content
Therefore, the electricity that the technical problem to be solved by the present invention is to overcome miniature circuit breaker in the prior art to generate
Arc is introduced into arc-chutes along bimetal leaf by leading arc plate, the soft company for being easy scaling loss bimetal leaf and being welded on bimetal leaf
Connect, influence the disjunction tripping ability of breaker and the problem of service life, thus provide safeguard bimetal leaf and be flexible coupling not by
Electrical arc erosion makes electric arc well into arc-chutes, promotes a kind of arc quenching system of miniature circuit breaker of product service life.
In order to solve the above technical problems, the utility model provides a kind of arc quenching system of miniature circuit breaker, including shell, set
It sets in the intracorporal arc-chutes of shell, moving contact, static contact and arc striking component, the moving contact and the static contact are arranged in the arc extinguishing
The opening side of room, the arc striking component are fixedly connected on the inside bottom surface of the arc-chutes and extend opening for the arc-chutes
Mouthful, the arc striking component includes the first arc-striking structure extended to below the conducting end that the moving contact is in contact with static contact, institute
Stating static contact includes the second arc-striking structure extended to the opening side of the arc-chutes；It further include being connected to the moving contact back
To the bimetallic piece of the static contact side, the conducting end opposite position of the bimetallic piece and the moving contact is equipped with one layer
Insulator.
As a preferred embodiment, structure, one end are to be fixed on the inside of the arc-chutes to the arc striking component in the form of sheets
The flat part of bottom surface, the other end are the through slot across the shell and opposite with the conducting end interval of the moving contact described the
One arc-striking structure is connected with inclined plate portion between first arc-striking structure and the flat part.
As a preferred embodiment, first arc-striking structure is in perpendicular hook solid, is had towards the moving contact and quiet
The recess of contact side.
As a preferred embodiment, second arc-striking structure is bent upwards molding, and position by one end of the static contact
In the top of arc-chutes opening side.
As a preferred embodiment, the insulator is at least one layer of polyimides being wound in the bimetallic piece
Paper.
As a preferred embodiment, the bimetallic piece is connected by being flexible coupling with the moving contact, the company that is flexible coupling
It connects in lower end position of the bimetallic piece far from the moving contact.
As a preferred embodiment, the arc-chutes include housing, and are from top to bottom arranged at intervals in the housing
Multiple arc extinguishing grid pieces, the flat part are fixed in the arc-chutes and are arranged in parallel with the arc extinguishing grid pieces, the inclined plate portion
One end is connected to the opening side horizontal extension of the arc-chutes with the flat part.
As a preferred embodiment, the shape of the flat part and multiple arc extinguishing grid pieces matches；The housing packet
Include the two sides fixed plate being oppositely arranged, the two sides fixed plate, which respectively corresponds, is provided with multiple location holes, the arc extinguishing grid pieces and
Multiple locating pieces corresponding with the location hole, the locating piece riveting are respectively arranged on the two sides side of the flat part
In the location hole.
As a preferred embodiment, the mounting groove for being suitable for installing the arc-chutes, the arc extinguishing are provided in the shell
Room, which is fitted into the mounting groove, forms interference fit.
The above-mentioned technical proposal of the utility model has the advantage that compared with prior art
1. in the arc quenching system of miniature circuit breaker provided by the utility model, the arc striking component is fixedly connected on the arc extinguishing
Chamber interior, and there is the first arc-striking structure extended to below the conducting end that moving contact is in contact with static contact, so that moving contact
On electric arc be easier to be attracted on arc striking component, and the second arc-striking structure is set on static contact, this structure setting, when
When dynamic and static contact disconnects generation electric arc, a part of electric arc is introduced into arc-chutes along the second arc-striking structure of static contact, another part
Electric arc is guided on the first arc-striking structure by the conducting end of moving contact, is introduced directly into arc-chutes by arc striking component, is no longer pass through double
Metalwork, also, the bimetallic piece correspond to moving contact setting insulator can further completely cut off electric arc, so that it is guaranteed that electric arc
Bimetallic piece is not flowed through, while the arc quenching system of this structure not only can guarantee moving contact striking, but also is avoided that bimetallic piece
And its be flexible coupling by electrical arc erosion, bootable electric arc is more abundant, quickly enters in arc-chutes and realizes arc extinguishing, and design is reasonable,
Securely and reliably, the disjunction tripping ability and service life of breaker are promoted.
2. in the arc quenching system of miniature circuit breaker provided by the utility model, one end of the arc striking component is described to be fixed on
The flat part of the inside bottom surface of arc-chutes, the other end are the first striking knot opposite with the conducting end interval of the moving contact
Structure is connected with inclined plate portion between first arc-striking structure and the flat part.The arc striking component being arranged using the above structure
It is not in contact with bimetallic piece, striking, can will apart from short between first arc-striking structure and the conducting end of the moving contact
Electric arc on moving contact is quickly attracted to first arc-striking structure side, and electric arc enters arc-chutes along inclined plate portion and flat part
In, be conducive to reduce the resistance that electric arc enters arc-chutes, promote arc quenching effect.
3. in the arc quenching system of miniature circuit breaker provided by the utility model, first arc-striking structure is in perpendicular hook solid,
It has the recess towards the moving contact and static contact side, i.e. recess is located at moving contact and opens with what static contact switched on and off
Away from below section, extended distance is long, and is mutually leaned on by the top of first arc-striking structure and the conducting end of the moving contact
Nearly setting is conducive to first arc-striking structure in this way and more preferably attracts electric arc caused by the moving contact and static contact disjunction,
Arc effect is led in promotion.
4. in the arc quenching system of miniature circuit breaker provided by the utility model, the two sides fixed plate of the housing is respectively corresponded
It is provided with multiple location holes, is respectively arranged with and the location hole phase on the two sides side of the arc extinguishing grid pieces and the flat part
Corresponding multiple locating pieces, the locating piece are riveted in the location hole, can make multiple arc extinguishing grid pieces and flat part in this way
Robust is assembled in housing, to form arc quenching chamber structure, can effectively prevent the flat part of arc extinguishing grid pieces and arc striking component
It falls off from housing, stable structure is reliable, easy for installation.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the planar structure schematic diagram of the arc quenching system of the miniature circuit breaker of the utility model；
Fig. 2 is the arc-chutes of the utility model and the mounting structure schematic diagram of arc striking component；
Fig. 3 is the structural schematic diagram of the arc striking component of the utility model；
Fig. 4 is the structural schematic diagram of the arc extinguishing grid pieces of the utility model；
Fig. 5 is the structural schematic diagram of the shell of the utility model；
Fig. 6 is a kind of structural schematic diagram of arc quenching system of the prior art；
Description of symbols:
1- shell, 11- through slot, 12- mounting groove, 2- arc-chutes, 21- arc extinguishing grid pieces, 211- locating piece, 22- fixed plate,
221- location hole, 3- moving contact, 31- conducting end, 4- static contact, the second arc-striking structure of 41-, 5- arc striking component, 51- the first striking knot
Structure, 52- flat part, 53- inclined plate portion, 6- bimetallic piece, 61- are flexible coupling, 7- insulator.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment 1
The present embodiment provides a kind of arc quenching systems of miniature circuit breaker as shown in Figs. 1-5, including shell 1, setting are in shell
Arc-chutes 2, moving contact 3, static contact 4 and arc striking component 5 in body 1, the moving contact 3 and the setting of the static contact 4 are gone out described
The opening side of arc chamber 2, the arc striking component 5 are fixedly connected on the inside bottom surface of the arc-chutes 2 and extend the arc-chutes 2
Opening, the arc striking component 5 includes that first extended to below the conducting end 31 that the moving contact 3 is in contact with static contact is drawn
Arc structure 51, the static contact 4 include the second arc-striking structure 41 extended to the opening side of the arc-chutes 2；It further include connecting
The bimetallic piece 6 in the moving contact 3 backwards to 4 side of static contact is connect, the bimetallic piece 6 is led with the moving contact 3
Electric end opposite position is equipped with one layer of insulator 7.
Above embodiment is the core technology scheme of the present embodiment, is fixedly connected on described go out by the arc striking component 5
Inside arc chamber 2, and there is the first arc-striking structure 51 extended to below the conducting end that moving contact is in contact with static contact, so that dynamic
Electric arc on contact 3 is easier to be attracted on arc striking component 5, and the second arc-striking structure 41 is arranged on static contact 4, using this
Technical solution, when dynamic and static contact disjunction generates electric arc, a part of electric arc goes out along the second arc-striking structure 41 introducing of static contact 4
In arc chamber, another part electric arc is guided on the first arc-striking structure 51 by the conducting end 31 of moving contact 3, is directly drawn by arc striking component 5
Enter in arc-chutes, is no longer pass through bimetallic piece, also, the insulator 7 of the corresponding moving contact setting of the bimetallic piece 6 can be into one
Step isolation electric arc, so that it is guaranteed that electric arc does not flow through bimetallic piece 6, the arc quenching system of this structure both can guarantee that moving contact 3 drew
It while arc, and is avoided that bimetallic piece 6 and its is flexible coupling by electrical arc erosion, bootable electric arc more sufficiently, quickly enters
Arc extinguishing is realized in arc-chutes, design rationally, securely and reliably, promotes the disjunction tripping ability and service life of breaker.
It elaborates below with reference to the specific structure of Fig. 1-3 pairs of arc striking components 5:
Structure, one end are the flat part 52 for being fixed on the inside bottom surface of the arc-chutes 2 to the arc striking component 5 in the form of sheets,
The other end is the through slot 11 across the shell 1 and is spaced opposite first striking with the conducting end 31 of the moving contact 3
Structure 51 is connected with inclined plate portion 53 between first arc-striking structure 51 and the flat part 52.It is arranged using the above structure
The arc striking component 5 is not in contact with the bimetallic piece 6, the conducting end of first arc-striking structure 51 and the moving contact 3
Between striking apart from short, the electric arc on moving contact can be quickly attracted to first arc-striking structure side, electric arc is along inclined plate
Portion and flat part enter in arc-chutes, are conducive to reduce the resistance that electric arc enters arc-chutes, promote arc quenching effect.
It is further preferred that first arc-striking structure 51 is in perpendicular hook solid, have towards the moving contact 3 and stationary contact
The recess of first side, i.e. recess are located at the moving contact 3 and drive with what static contact 4 switched on and off away from section lower section, extended distance
It is long, increase striking range to the greatest extent, and pass through the conducting end on the top of first arc-striking structure 51 and the moving contact 3
Setting close to each other is conducive to first arc-striking structure 51 in this way and the moving contact 3 is more preferably attracted to be produced with 4 disjunction of static contact
Arc effect is led in raw electric arc, promotion.
As shown in Figure 1, second arc-striking structure 41 is bent upwards molding by one end of the static contact 4, and it is located at institute
The top of the opening of arc-chutes 2 side is stated, this structure setting rises according to the crooked radian for requiring the second arc-striking structure 41 of design
It is acted on to better striking, is conducive to the electric arc on static contact 4 and is more adequately introduced into arc-chutes, realize fast arc extinction.
In the present embodiment, as shown in Figure 1, the insulator 7 is at least one layer of polyamides being wound in the bimetallic piece 6
Imines paper, the bimetallic piece 6 wind polyimides paper position be it is corresponding with the conducting end 31 of the moving contact 3, therefore,
Play the role of being dielectrically separated from, electric arc be attracted in the bimetallic piece 6 after the 3 side starting the arc of moving contact can be prevented,
To ensure that the stabilization of the thermal characteristics of bimetallic piece 6, the normal on-off for influencing breaker is avoided.
As a kind of specific set-up mode, the bimetallic piece 6 61 is connected by being flexible coupling with the moving contact 3, institute
It states to be flexible coupling and 61 is connected to lower end position of the bimetallic piece 6 far from the moving contact 3, the conduction apart from the moving contact 3
There is a distance at end, and after changing striking path, and electric arc is no longer pass through bimetallic piece, and such structure design is guaranteeing
While 3 striking of moving contact, ensures that bimetallic piece 6 and be flexible coupling 61 not by electrical arc erosion.Wherein, the bimetallic
The lower end of part 6 and the outlet side terminal of breaker connect, and the upper end is the free end of heated bending, and the setting of insulator 7 exists
The lower position of the free end of the bimetallic piece 6, does not interfere free end to act.
It elaborates below with reference to the specific set-up mode of Fig. 2-4 pairs of arc-chutes:
The arc-chutes 2 include housing, and the multiple arc extinguishing grid pieces 21 being from top to bottom arranged at intervals in the housing, institute
It states flat part 52 and is fixed in the arc-chutes 2 and be arranged in parallel with the arc extinguishing grid pieces, specifically, the flat part 52 is positioned at more
It is put down to the opening side horizontal extension of the arc-chutes 2 with described one end of the bottom of a arc extinguishing grid pieces 21, the inclined plate portion 53
Plate portion 52 is connected, and increases striking range, and this structure setting can fully absorb the electric arc attracted by dynamic and static contact side, electricity
Arc, which is drawn into arc extinguishing grid pieces, is separated into multistage short arc, plays the role of the cooling simultaneously deionization of electric arc, to reach arc extinguishing effect
Fruit.
Made further preferably according to above embodiment, the shape of the flat part 52 and multiple arc extinguishing grid pieces 21
Match, setting can play the role of striking and arc extinguishing in arc-chutes.Further, in order to facilitate housing and arc extinguishing grid pieces and flat
Installation between plate portion is fixed, and the structural stability of arc-chutes is enhanced, and the housing includes the two sides fixed plate 22 being oppositely arranged,
The two sides fixed plate 22, which respectively corresponds, is provided with multiple location holes 221, and the two of the arc extinguishing grid pieces 21 and the flat part 52
Multiple locating pieces 211 corresponding with the location hole 221 are respectively arranged on the side of side, the locating piece 211 is riveted on institute
It states in location hole 221, being assembled in housing for flat part 52 and 21 robust of multiple arc extinguishing grid pieces can be made in this way, thus shape
At arc quenching chamber structure, the flat part of arc extinguishing grid pieces and arc striking component can be effectively prevent to fall off from housing, stable structure is reliable, installation
It is convenient.
As shown in Figure 1 and Figure 5, the mounting groove 12 for being suitable for installing the arc-chutes 2 is provided in the shell 1, it is described to go out
Arc chamber 2, which is fitted into the mounting groove 12, forms interference fit, this structure setting, according to rational design arc-chutes 2 and mounting groove
Arc-chutes correspondence need to be only installed in the mounting groove, the side wall and institute using the arc-chutes 2 by the installation dimension between 12
State mounting groove 12 side wall corresponding matching clamp, thus make the arc-chutes 2 is realized on the shell 1 horizontal direction and vertically
Positioning and clamping on direction, ensure that the stability of arc-chutes installation site, install convenient.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (9)
1. a kind of arc quenching system of miniature circuit breaker, including shell (1), setting the intracorporal arc-chutes of shell (2), moving contact (3),
The opening one of static contact (4) and arc striking component (5), the moving contact (3) and the static contact (4) setting in the arc-chutes (2)
Side, it is characterised in that: the arc striking component (5) is fixedly connected on the inside bottom surface of the arc-chutes (2) and extends the arc extinguishing
The opening of room (2), the arc striking component (5) include extending under the conducting end (31) that the moving contact (3) is in contact with static contact
The first arc-striking structure (51) of side, the static contact (4) include the second striking extended to the opening side of the arc-chutes (2)
Structure (41)；It further include the bimetallic piece (6) for being connected to the moving contact (3) backwards to the static contact (4) side, double gold
The conducting end opposite position for belonging to part (6) and the moving contact (3) is equipped with one layer of insulator (7).
2. the arc quenching system of miniature circuit breaker according to claim 1, it is characterised in that: the arc striking component (5) is in the form of sheets
Structure, one end are the flat part (52) for the inside bottom surface for being fixed on the arc-chutes (2), and the other end is across the shell
(1) through slot (11) and it is spaced opposite first arc-striking structure (51) with the conducting end (31) of the moving contact (3), it is described
Inclined plate portion (53) are connected between first arc-striking structure (51) and the flat part (52).
3. the arc quenching system of miniature circuit breaker according to claim 2, it is characterised in that: first arc-striking structure (51)
In perpendicular hook solid, there is the recess towards the moving contact (3) and static contact side.
4. the arc quenching system of miniature circuit breaker according to claim 3, it is characterised in that: second arc-striking structure (41)
Molding is bent upwards by one end of the static contact (4), and is located at the top of the arc-chutes (2) opening side.
5. the arc quenching system of miniature circuit breaker according to claim 1, it is characterised in that: the insulator (7) is winding
In at least one layer of polyimides paper on the bimetallic piece (6).
6. the arc quenching system of miniature circuit breaker according to claim 5, it is characterised in that: the bimetallic piece (6) passes through
Be flexible coupling (61) be connected with the moving contact (3), it is described be flexible coupling (61) be connected to the bimetallic piece (6) far from described dynamic touching
The lower end position of head (3).
7. the arc quenching system of the miniature circuit breaker according to any one of claim 2-4, it is characterised in that: the arc-chutes
It (2) include housing, and the multiple arc extinguishing grid pieces (21) being from top to bottom arranged at intervals in the housing, the flat part (52) is solid
It is scheduled in the arc-chutes and is arranged in parallel with the arc extinguishing grid pieces (21), one end of the inclined plate portion (53) is to the arc-chutes
(2) opening side horizontal extension is connected with the flat part (52).
8. the arc quenching system of miniature circuit breaker according to claim 7, it is characterised in that: the flat part (52) with it is multiple
The shape of the arc extinguishing grid pieces (21) matches；The housing includes the two sides fixed plate (22) being oppositely arranged, and the two sides are solid
Fixed board (22), which respectively corresponds, to be provided with multiple location holes (221), the two sides of the arc extinguishing grid pieces (21) and the flat part (52)
Multiple locating pieces (211) corresponding with the location hole (221), locating piece (211) riveting are respectively arranged on side
In the location hole (221).
9. the arc quenching system of miniature circuit breaker according to claim 8, it is characterised in that: be provided in the shell (1)
Suitable for installing the mounting groove (12) of the arc-chutes (2), the arc-chutes (2) are fitted into formation interference in the mounting groove (12) and match
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820729718.8U CN208352246U (en) | 2018-05-16 | 2018-05-16 | A kind of arc quenching system of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820729718.8U CN208352246U (en) | 2018-05-16 | 2018-05-16 | A kind of arc quenching system of miniature circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN208352246U true CN208352246U (en) | 2019-01-08 |
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| CN201820729718.8U Active CN208352246U (en) | 2018-05-16 | 2018-05-16 | A kind of arc quenching system of miniature circuit breaker |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112908749A (en) * | 2019-12-04 | 2021-06-04 | 上海良信电器股份有限公司 | Arc extinguishing device and circuit breaker |
| CN113745072A (en) * | 2020-05-28 | 2021-12-03 | 上海良信电器股份有限公司 | Arc extinguishing mechanism and circuit breaker |
| CN113889384A (en) * | 2021-08-16 | 2022-01-04 | 浙江创奇电气有限公司 | Circuit breaker |
| CN113948350A (en) * | 2020-07-15 | 2022-01-18 | 浙江正泰电器股份有限公司 | Small-sized circuit breaker |
| WO2022135039A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | N-pole wiring structure for circuit breaker |
-
2018
- 2018-05-16 CN CN201820729718.8U patent/CN208352246U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112908749A (en) * | 2019-12-04 | 2021-06-04 | 上海良信电器股份有限公司 | Arc extinguishing device and circuit breaker |
| CN113745072A (en) * | 2020-05-28 | 2021-12-03 | 上海良信电器股份有限公司 | Arc extinguishing mechanism and circuit breaker |
| CN113948350A (en) * | 2020-07-15 | 2022-01-18 | 浙江正泰电器股份有限公司 | Small-sized circuit breaker |
| WO2022135039A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | N-pole wiring structure for circuit breaker |
| CN113889384A (en) * | 2021-08-16 | 2022-01-04 | 浙江创奇电气有限公司 | Circuit breaker |
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