CN105632850A - Breaker - Google Patents
Breaker Download PDFInfo
- Publication number
- CN105632850A CN105632850A CN201610212792.8A CN201610212792A CN105632850A CN 105632850 A CN105632850 A CN 105632850A CN 201610212792 A CN201610212792 A CN 201610212792A CN 105632850 A CN105632850 A CN 105632850A
- Authority
- CN
- China
- Prior art keywords
- contact
- snap close
- tripping
- dynamic contact
- isolating switch
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The present invention provides a breaker. The breaker comprises housing, a fixed contact, a moving contact cooperating with the fixed contact and an operation mechanism connected with the moving contact. The moving contact is in contact conduction with the fixed contact under the effect of the operation mechanism, the moving contact and the fixed contact are both provided with repulsion sections, and the repulsion sections are conductor structures extending from the contact area of the moving contact and the fixed contact. A pair of reverse currents is formed when a heavy current flows through the two repulsion sections, and the reverse current allows the moving contact and the fixed current to generate mutually repellent repulsive forces, and the repulsive forces may instantaneously drive the movement of the moving contact, so that the moving contact and the fixed contact are broken off; and moreover, compared with the traditional releasing system, the breaker is faster in response speed, and is able to avoid the damaging of heavy current to the breaker and the lines and ensure the safety of the breaker and the lines.
Description
Technical field
The present invention relates to switching arrangement technical field, it is specifically related to a kind of isolating switch.
Background technology
Isolating switch is a kind of common switching arrangement, for break-make loop, and distribution electric energy, it is also possible under normal circumstances as the use of infrequently operation transformation of circuit, and isolating switch place circuit is play a part overload and short circuit protection.
Isolating switch is made up of contact system, arc quenching system, operating mechanism, tripping system and shell etc. usually. Circuit overload, short circuit or other protection are realized by tripping system. Tripping system generally includes electromagnetic tripping apparatus and bimetallic strip tripping gear. Concrete principle of work is: when circuit short circuit, the strong magnetic field that short-circuit current produces makes actuating member act on corresponding linkage structure, contact and static contact is divided disconnected, thus realizes the provide protection to circuit. When circuit overload, electrorheological is big, and thermal value is aggravated, and bi-metal plate deformed promotes the mechanism's (electric current is more big, and opening time is more short) that links accordingly to a certain extent, contact and static contact is divided disconnected, it is achieved to the protection of circuit.
During reality uses, isolating switch invariably cannot can run into the situation of instantaneous large-current. And for electric current big instantaneously; isolating switch of the prior art still needs above-mentioned tripping system to realize the protection to circuit; but above-mentioned tripping system needs certain time of response just can realize the point disconnected of dynamic contact and static contact; speed is slower; big current easily causes within the short period of time and isolating switch itself and circuit is damaged, poor stability.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is to overcome dynamic/static contact when isolating switch of the prior art meets with big current and divides that disconnected response speed is slow, the defect of poor stability, thus provides a kind of isolating switch.
A kind of isolating switch provided by the invention, comprising:
Housing;
Static contact, is arranged in described housing;
Dynamic contact, is arranged in described housing, coordinates with described static contact;
Operating mechanism, is arranged in described housing, connects described dynamic contact and applies towards the reactive force of described static contact so that described dynamic contact contacts with described static contact to described dynamic contact;
Described dynamic contact and described static contact all have repulsion section, and described repulsion section is the conductor structure extended in the same way by described dynamic contact contacts region with described static contact, shape reversible circulation in a pair when electric current flows through this two repulsion sections; Under the repulsion effect that reversible circulation produces, described dynamic contact overcomes the reactive force of described operating mechanism applying towards away from the lateral movement of described static contact one.
Optionally, the repulsion section bearing of trend of described dynamic contact and described static contact is parallel to each other, and the contact region of two repulsion sections and described dynamic contact and static contact forms U shape structure.
Optionally, described operating mechanism comprise be triggered after described dynamic contact and described static contact can be made to divide disconnected trigger device; The repulsion move under influence that described dynamic contact produces at reversible circulation is to triggering position, and this dynamic contact has the triggering structure of trigger device described in this triggering location triggered.
Optionally, described operating mechanism comprises the contact supporting being rotatably installed on described housing, and, rotatably it is arranged at tripping and the snap close of this contact supporting; Described dynamic contact is installed on this contact supporting; When described tripping and described snap close are linked, under the effect of described tripping, described snap close just promotes described contact supporting to rotate to rotation, and described dynamic contact contacts with described static contact; Described snap close rotates backward and departs from and being linked of described tripping, and described operating mechanism recovers starting position, described dynamic contact with described operating mechanism away from described static contact; Described snap close is described trigger device, and described dynamic contact drives described snap close to rotate backward to realize described snap close and described tripping disengaging linkage.
Optionally, described dynamic contact is rotatably installed on described contact supporting, and described dynamic contact is included in this dynamic contact and turns to the counter-rotational triggering projection of snap close described in described triggering position rear drive.
Optionally, described operating mechanism comprises the snap close elasticity part being arranged between described contact supporting and described snap close, and this snap close elasticity part elastic force promotes described snap close to rotate near the position of described tripping.
Optionally, described snap close elasticity part comprises the bending elasticity bar being fixedly connected with described snap close, and the top of this elasticity bar is provided with the ball bumps being resisted against described contact supporting, and described contact supporting is provided with the abutment face coordinated with this ball bumps.
Optionally, described tripping is provided with toothed projections, and described snap close is provided with the profile of tooth groove coordinated with this toothed projections, and the cooperation of described toothed projections and described profile of tooth groove realizes being linked of described tripping and described snap close.
Optionally, described operating mechanism comprises the operation handle arm being rotatably arranged on described housing, and described tripping and the linkage of described operation handle arm, under this operation handle arm effect, described tripping is rotated, and this tripping links with described snap close after turning to set angle.
Optionally, described operation handle arm is connected by union lever with described tripping, and described union lever is V-type rod-like structure, and two ends have abutting end, and wherein an abutting end and described operation handle arm are hinged, and another abutting end and described tripping are hinged.
Optionally, being provided with dynamic contact elasticity part between described dynamic contact and described contact supporting, described dynamic contact elasticity part promotes described dynamic contact to rotate near described static contact direction.
Optionally, described isolating switch comprises the bracket elastic member of the described contact supporting that resets.
Optionally, the repulsion section bearing of trend of described dynamic contact and described static contact is parallel to each other, and it is equal to extend length.
Technical solution of the present invention, tool has the following advantages:
1. a kind of isolating switch provided by the invention, its dynamic contact and static contact all have repulsion section, and repulsion section is the conductor structure that automatic contact and static contact connection region start to extend in the same way. So designing, when occurring that big current flows through two repulsion Duan Shihui shape reversible circulations in a pair, reversible circulation makes the repulsion producing between contact and static contact mutually to repel, and repulsion can move by the dynamic contact of instantaneous driving, and then it is disconnected that contact and static contact are divided. So more traditional tripping system fast response time of design, avoids big current isolating switch itself and circuit to be damaged, ensure that isolating switch and the security of place circuit.
2. a kind of isolating switch provided by the invention, snap close elasticity part it is provided with between its snap close and tripping, so design can fully ensure tripping and latch in moving process to be in close contact, effectively ensure that tripping and snap close are linked in process not slide fastener, it is to increase the reliability of isolating switch entirety.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of isolating switch provided by the invention;
Fig. 2 is the structural representation of operating mechanism in isolating switch;
Fig. 3 is the structural representation that in isolating switch, snap close coordinates with tripping;
The structure principle chart of dynamic contact and snap close in Fig. 4 isolating switch;
Fig. 5 is the structure principle chart of snap close elasticity part.
Description of reference numerals:
1-operation handle arm, 2-union lever, 3-operating mechanism, 31-contact supporting, 311-abutment face, 32-tripping, 321-toothed projections, 33-snap close, 331-profile of tooth groove, 34-snap close elasticity part, 341-elasticity bar, 342-ball bumps, the dynamic contact elasticity part of 35-, the dynamic contact of 4-, 41-trigger projection, 5-static contact, 6-bracket elastic member, 7-housing.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme of the present invention is clearly and completely described, it is clear that described embodiment is the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 to Fig. 5 shows the embodiment of a kind of isolating switch provided by the invention.
As can be seen from Figure 1, this isolating switch comprises housing 7, operating mechanism 3 and static contact 5.
Housing 7 provides for other component in this isolating switch and installs position or/and install structure, and is played a protective role by the component being arranged at its inside. Housing 7 is usually shaping by insulating plastics, and has good insulativity and high-temperature stability. Its concrete structure should be determined according to practical factors such as the constitutional features of other component of isolating switch and installation positions, the shape feature of housing 7 is not described specifically herein.
Please refer to Fig. 2, operating mechanism 3 comprises contact supporting 31, and, it is arranged at tripping 32 and the snap close 33 of this contact supporting 31. Contact supporting 31 is rotatably arranged at housing 7. Tripping 32 and snap close 33 are all rotatably arranged at contact supporting 31. Dynamic contact 4 is installed on this contact supporting 6.
Tripping 32 is swayed, and is linked with snap close 33 after tripping 32 turns to set angle. When tripping 32 is rotated further, then snap close 33 under the effect of tripping 32 just to rotation. Snap close 33 just sways to rotating band contact supporting 31, and namely contact supporting 31, snap close 33 and tripping 32 are synchronized with the movement. Dynamic contact 4 moves near static contact 5 with contact supporting 31 and is in contact with it, thus realizes the conducting of dynamic contact 4 and static contact 5.
Snap close 33 rotates backward and can depart from and being linked of tripping 32. It should be noted that, snap close 33 just to rotation or rotate backward only for distinguishing the different rotation in two kinds of directions, and do not refer in particular to the rotation in certain direction.
Please refer to Fig. 3, tripping 32 and being linked of snap close 33 realize with the profile of tooth groove 331 being arranged at snap close 33 by being arranged at the toothed projections 321 of tripping 32. Toothed projections 321 is convenient to both separation equally with the cooperation of profile of tooth groove 331, it is easy to realize the disengaging that both are linked. Other similar shape can be selected with groove herein it is appreciated that protruding.
Please refer to Fig. 4, as preferred embodiment, dynamic contact 4 is rotatably installed on contact supporting 31. Being provided with on dynamic contact 4 and trigger protruding 41, when dynamic contact 4 is to, when rotating to set angle away from static contact 5 direction, triggering protruding 41 and contact with snap close 33 respective face, this position is called triggers position. Continue to rotate along with dynamic contact 4, trigger protruding 41 and promotion snap close 33 is rotated backward, thus make snap close 33 depart from being linked between tripping 32.
Further preferably, dynamic dynamic contact elasticity part 35 between contact 4 and contact supporting 31, it is provided with. The elastic force of this dynamic contact elasticity part 35 makes contact 4 rotate near static contact 5 direction. The setting of dynamic contact elasticity part 35 can make contact 4 be in close contact with static contact 5 under certain elastic force, thus ensure that the reliability that moving contact of breaker and static contact are connected.
This isolating switch also comprises the bracket elastic member 6 of reset contact support 31, and after snap close 33 and tripping 32 disengaging are linked, contact supporting 31 resets to starting position under the effect of bracket elastic member 6. Dynamic contact 4 moves with contact supporting 31, and when contact supporting 31 is in starting position, dynamic contact 4 is disconnected with static contact 5 realization point.
As can be seen from Figure 5, operating mechanism 3 also comprises the snap close elasticity part 34 being arranged between contact supporting 31 and snap close 33. When snap close 33 and tripping 32 are linked, when snap close 33 promotes contact supporting 31 to move, this snap close elasticity part 34 produces elastic force by pressure. This elastic force makes tripping 32 and snap close 33 can remain in moving process to be in close contact, thus effectively ensure that tripping 32 and snap close 33 are linked in process not slide fastener, it is to increase the reliability of isolating switch entirety.
In the present embodiment, snap close elasticity part 34 comprises the bending elasticity bar 341 being fixedly linked with snap close 33, this elasticity bar 341 top is provided with the ball bumps 342 being resisted against contact supporting 31, and contact supporting 31 is provided with the abutment face 311 coordinated with this ball bumps 342. In order to avoid movement interference, cooperation between snap close 33 and tripping 32 and snap close elasticity part 34 and abutment face 311 are in the both sides of contact supporting 31 respectively. Preferably, snap close elasticity part 34 and snap close 33 are structure as a whole.
In the technical program, the region that dynamic contact 4 contacts conducting with static contact 5 is called conducting region. Dynamic contact 4 and static contact 5 all have repulsion section, and repulsion section is the conductor structure extended in the same way by dynamic contact 4 and static contact 5 conducting region. Preferably, the bearing of trend of two repulsion sections is parallel to each other, that is, when dynamic contact 4 contacts conducting with static contact 5, dynamic contact 4 and static contact 5 form U-shaped loop. Shape reversible circulation in a pair when electric current flows through two repulsion sections, dynamic contact 4 and static contact 5 produce the repulsion repelled mutually on the contrary due to the sense of current. Therefore when this isolating switch is by big current; dynamic contact 4 can be scolded out moment under repulsion effect; and then the protruding 41 promotion snap closes 33 of triggering rotate backward; disengaging is linked with tripping 32; contact supporting 31 at the move under influence of bracket elastic member 6 to original state; dynamic contact 4 moves with contact supporting 31 and breaks with static contact 5 points, thus realizes breaker protection function. The tripping system fast response time which is more traditional, avoids big current to the infringement of isolating switch self structure and other equipment of circuit, security height.
In the present embodiment, dynamic contact 4 is parallel with the repulsion section bearing of trend of static contact 5, extends length equal. Dynamic contact 4 is that face contacts with static contact 5 fit structure.
As interchangeable enforcement mode, two repulsion sections of dynamic contact 4 and static contact 5 are meeting on the basis that repulsion requires, bearing of trend is not limited to strict being parallel to each other.
Operating mechanism 3 also comprises the operation handle arm 1 for manual operation, and this operation handle arm 1 is rotatably installed on this housing 7, is linked by union lever 2 and tripping 32. As can be seen from Figure 1, union lever 2 is V shape pole shape structure, two ends include the abutting end of bending, wherein an abutting end is arranged in the cooperation hole of operation handle arm 1 eccentric position rotationally, another abutting end is arranged in the cooperation hole of tripping 32 eccentric position rotationally, the setting of union lever 2 achieves operation handle arm 1 rotation and drives tripping 32 to rotate, i.e. the linkage of tripping 32 and operation handle arm 1.
It should be noted that, the trigger device in the technical program and triggering structure should in conjunction with concrete structure definition. Trigger theory is different, and trigger device also can be different. And trigger device is different, triggers structure and also may there is difference. Such as, in the present embodiment, trigger device is snap close 33, promotes snap close 33 to depart from the linkage that coordinates with tripping 32 and is triggering, and the triggering projection 41 on dynamic contact 4 is triggering structure.
This isolating switch also comprises electromagnetic tripping apparatus and bimetallic strip tripping gear breaks for small area analysis condition lower moving contact 4 and dividing of static contact 5.
The principle of work of this isolating switch:
One, closing by hand process;
Operation handle arm 1 rotates, and promotes tripping 32 to rotate by union lever 2, and tripping 32 turns to its detent projection 331 and snap close 33 end tooth shape groove 341 snap fit after set angle, it is achieved being linked of snap close 33 and tripping 32. Now snap close 33 rotates under the effect of tripping 32, and snap close 33 promotes contact 4 support to sway, i.e. tripping 32, snap close 33 and contact supporting 31 one motion. Dynamic contact 4 moves with contact supporting 31, and finally contacts conducting with static contact 5.
Two, contact is scolded out:
Dynamic contact 4 and static contact 5 contact with each other, and form U-shaped loop. When electric current arrives set(ting)value, dynamic repulsion between contact 4 and static contact 5 promotes dynamic contact 4 to rotate. When dynamic contact 4 is separated with static contact 5, the electric arc that dynamic contact 4 and static contact 5 produce due to surface continues conducting.
Dynamic contact 4 continues to sway under the effect of repulsion, and after turning to triggering position, the protruding 41 promotion snap closes 33 of the triggering on dynamic contact 4 rotate backward. Depart to depart from tripping 32 after snap close 33 turns to certain angle and it is linked. Contact supporting 31 returns to starting position under the effect of bracket elastic member 6, and dynamic contact 4 is separated with static contact 5 with contact supporting 31.
Move in the process of final position with contact supporting 31 at dynamic contact 4, dynamic spacing between contact 4 and static contact 5 becomes big gradually, dynamic electric arc between contact 4 and static contact 5 is elongated, even electric arc starts gasification, and be introduced into arc quenching system and carry out arc extinguishing, thus ensure that dynamic contact 4 and static contact 5 can not draw big current by serious scaling loss, increase isolating switch work-ing life and reliability.
Obviously, above-described embodiment is only for example is clearly described, and not to the restriction of the mode of enforcement. For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description. Here without the need to also cannot all enforcement modes be given exhaustive. And the apparent change thus extended out or variation are still among the protection domain of the invention.
Claims (13)
1. an isolating switch, comprising:
Housing (7);
Static contact (5), is arranged in described housing (7);
Dynamic contact (4), is arranged in described housing (7), coordinates with described static contact (5);
Operating mechanism (3), it is arranged in described housing (7), connects described dynamic contact (4) and apply towards the reactive force of described static contact (5) so that described dynamic contact (4) contacts with described static contact (5) to described dynamic contact (4);
It is characterized in that: described dynamic contact (4) and described static contact (5) all have repulsion section, described repulsion section is the conductor structure extended in the same way by described dynamic contact (4) contacts region with described static contact (5), shape reversible circulation in a pair when electric current flows through this two repulsion sections; Under the repulsion effect that reversible circulation produces, described dynamic contact (4) overcomes the reactive force of described operating mechanism 3 applying towards away from the lateral movement of described static contact (5).
2. isolating switch according to claim 1, it is characterized in that: the repulsion section bearing of trend of described dynamic contact (4) and described static contact (5) is parallel to each other, the contact region of two repulsion sections and described dynamic contact (4) and static contact (5) forms U shape structure.
3. isolating switch according to claim 1 and 2, it is characterised in that: described operating mechanism (3) comprise be triggered after can make described dynamic contact (4) and described static contact (5) point disconnected trigger device; The repulsion move under influence that described dynamic contact (4) produces at reversible circulation is to triggering position, and this dynamic contact (4) has the triggering structure of trigger device described in this triggering location triggered.
4. isolating switch according to claim 3, it is characterized in that: described operating mechanism (3) comprises the contact supporting (31) being rotatably installed on described housing (7), and, rotatably it is arranged at tripping (32) and the snap close (33) of this contact supporting (31); Described dynamic contact (4) is installed on this contact supporting; When described tripping (32) and described snap close (33) are linked, under the effect of described tripping (32), described snap close (33) just promotes described contact supporting (31) to rotate to rotation, and described dynamic contact (4) contacts with described static contact (5); Described snap close (33) rotates backward and departs from and being linked of described tripping (32), described operating mechanism (3) recover starting position, described dynamic contact (4) with described operating mechanism (3) away from described static contact (5); Described snap close (33) is described trigger device, and described dynamic contact (4) drives described snap close (33) to rotate backward to realize described snap close (33) and described tripping (32) disengaging linkage.
5. isolating switch according to claim 4, it is characterized in that: described dynamic contact (4) is rotatably installed on described contact supporting (31), described dynamic contact (4) is included in this dynamic contact (4) and turns to the counter-rotational triggering of snap close (33) described in described triggering position rear drive protruding (41).
6. isolating switch according to claim 5, it is characterized in that: described operating mechanism (3) comprises snap close elasticity part (34) being arranged between described contact supporting (31) and described snap close (33), this snap close elasticity part (34) elastic force promotes described snap close (33) to rotate near the position of described tripping (32).
7. isolating switch according to claim 6, it is characterized in that: described snap close elasticity part (34) comprises bending elasticity bar (341) being fixedly connected with described snap close (35), the top of this elasticity bar (35) is provided with the ball bumps (342) being resisted against described contact supporting (31), and described contact supporting (31) is provided with the abutment face (311) coordinated with this ball bumps (342).
8. isolating switch according to claim 4, it is characterized in that: described tripping (32) is provided with toothed projections (321), described snap close (33) is provided with the profile of tooth groove (331) coordinated with this toothed projections (321), and the cooperation of described toothed projections (321) and described profile of tooth groove (331) realizes being linked of described tripping (32) and described snap close (33).
9. isolating switch according to claim 4, it is characterized in that: described operating mechanism (3) comprises the operation handle arm (1) being rotatably arranged on described housing (7), described tripping (32) and described operation handle arm (1) linkage, under this operation handle arm (1) acts on, described tripping (32) is rotated, and this tripping (32) links with described snap close (33) after turning to set angle.
10. isolating switch according to claim 9, it is characterized in that: described operation handle arm (1) is connected by union lever (2) with described tripping (32), described union lever (2) is V-type rod-like structure, two ends have abutting end, wherein an abutting end and described operation handle arm (1) are hinged, and another abutting end and described tripping (32) are hinged.
11. isolating switchs according to claim 5, it is characterized in that: be provided with dynamic contact elasticity part (35) between described dynamic contact (4) and described contact supporting (31), described dynamic contact elasticity part (35) promotes described dynamic contact (4) to rotate near described static contact (5) direction.
12. isolating switchs according to claim 4, it is characterised in that: described isolating switch comprises the bracket elastic member (6) of the described contact supporting (31) that resets.
13. isolating switchs according to claim 3, it is characterised in that: the repulsion section bearing of trend of described dynamic contact (4) and described static contact (5) is parallel to each other, and it is equal to extend length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610212792.8A CN105632850A (en) | 2016-04-07 | 2016-04-07 | Breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610212792.8A CN105632850A (en) | 2016-04-07 | 2016-04-07 | Breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105632850A true CN105632850A (en) | 2016-06-01 |
Family
ID=56047659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610212792.8A Pending CN105632850A (en) | 2016-04-07 | 2016-04-07 | Breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105632850A (en) |
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| CN105826138A (en) * | 2016-06-06 | 2016-08-03 | 温州罗格朗电器有限公司 | Releasing mechanism of small circuit breaker |
| CN107978467A (en) * | 2017-12-27 | 2018-05-01 | 浙江上图电气科技有限公司 | One kind linkage conducting system device |
| WO2018086539A1 (en) * | 2016-11-09 | 2018-05-17 | 北京人民电器厂有限公司 | Circuit breaker |
| CN113078035A (en) * | 2021-04-30 | 2021-07-06 | 科都电气股份有限公司 | High-breaking miniature circuit breaker |
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| CN202816839U (en) * | 2012-09-06 | 2013-03-20 | 北京博顿电气有限公司 | Breaker with U-shaped contact structure |
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| CN204991637U (en) * | 2015-09-14 | 2016-01-20 | 北京明日电器设备有限责任公司 | Disconnected moulded case circuit breaker of high score |
| CN205069553U (en) * | 2015-09-25 | 2016-03-02 | 浙江上图电气科技有限公司 | Moulded case circuit breaker contact means |
| CN205428861U (en) * | 2016-04-07 | 2016-08-03 | 浙江人民电器有限公司 | Breaker |
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| KR101076286B1 (en) * | 2011-02-07 | 2011-10-26 | 주식회사 대륙 | The molded case circuit breaker with the slot motor |
| CN202816839U (en) * | 2012-09-06 | 2013-03-20 | 北京博顿电气有限公司 | Breaker with U-shaped contact structure |
| CN203967000U (en) * | 2014-08-04 | 2014-11-26 | 浙江人民电器有限公司 | Miniature circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826138A (en) * | 2016-06-06 | 2016-08-03 | 温州罗格朗电器有限公司 | Releasing mechanism of small circuit breaker |
| WO2018086539A1 (en) * | 2016-11-09 | 2018-05-17 | 北京人民电器厂有限公司 | Circuit breaker |
| RU2683244C1 (en) * | 2016-11-09 | 2019-03-27 | Бейцзин Пиплз Электрик Плант Ко., Лтд. | Automatic circuit breaker |
| CN107978467A (en) * | 2017-12-27 | 2018-05-01 | 浙江上图电气科技有限公司 | One kind linkage conducting system device |
| CN113078035A (en) * | 2021-04-30 | 2021-07-06 | 科都电气股份有限公司 | High-breaking miniature circuit breaker |
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Application publication date: 20160601 |