CN203839310U - Breaker - Google Patents

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Publication number
CN203839310U
CN203839310U CN201420007301.2U CN201420007301U CN203839310U CN 203839310 U CN203839310 U CN 203839310U CN 201420007301 U CN201420007301 U CN 201420007301U CN 203839310 U CN203839310 U CN 203839310U
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CN
China
Prior art keywords
energy storage
handle
circuit breaker
moving contact
housing
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Withdrawn - After Issue
Application number
CN201420007301.2U
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Chinese (zh)
Inventor
黄亦新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG DELONG ELECTRONIC EQUIPMENT CO Ltd
Original Assignee
ZHEJIANG DELONG ELECTRONIC EQUIPMENT CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHEJIANG DELONG ELECTRONIC EQUIPMENT CO Ltd filed Critical ZHEJIANG DELONG ELECTRONIC EQUIPMENT CO Ltd
Priority to CN201420007301.2U priority Critical patent/CN203839310U/en
Application granted granted Critical
Publication of CN203839310U publication Critical patent/CN203839310U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model discloses a breaker. A static contact and a moving contact are arranged inside a housing. An operating mechanism comprises a handle arranged on the housing in a rotatable way and a linkage device connected between the handle and the moving contact. The linkage device is used for driving the moving contact to contact or disconnect with the static contact with the rotation of the handle. An energy storage device comprises an energy storage rod and an energy storage limiting member. The energy storage rod is arranged inside the housing in a way of reciprocating movement. One end of the energy storage rod abuts on the handle while the other end is provided with a first limiting plate. A first return device is arranged between the energy storage rod and the housing. The energy storage limiting member is fixedly arranged on the linkage device end connected with the moving contact. A second limiting plate cooperating with the first limiting plate for a limiting purpose is arranged on the energy storage limiting member. The front of the second limiting plate sticks out of the front of the moving contact. By means of the energy storage device, the moving contact is enabled to have a relatively high speed in a later stage of movement. The aim of rapidly contacting and rapidly disconnecting is achieved. The generated arc is reduced. The current breaking energy is improved. The fault incidence rate is lowered. The service lifetime of the breaker is further prolonged.

Description

A kind of circuit breaker
Technical field
The utility model relates to electric switch technical field, particularly a kind of circuit breaker.
Background technology
Circuit breaker refers to the electric current that can close, carry and cut-off under normal loop condition, and can close, in official hour, carry and cut-off the switching device of the electric current under abnormal loop condition.Circuit breaker can be used to distribute electric energy; do not start continually asynchronous motor; power circuit and motor etc. are carried out to protection, energy automatic shutdown circuit in the time that the serious fault such as overload or short circuit occurs for they, its function is equivalent to the combination of Fuse switch and overload thermal relay etc.And after disjunction fault current, generally do not need to change parts.At present, obtain a wide range of applications.
In prior art, driving handle is generally passed through in closing of circuit breaker, make to be connected to linkage on handle drive moving contact near or away from fixed contact, to reach the object closing, in this course, point sum velocity of dynamic/static contact is relevant with handle velocity of rotation, belong to and close slowly fast point, therefore, in closing course, because the movement velocity of moving contact is slower, in the closing course of dynamic/static contact, easily produce electric arc, calcination dynamic/static contact and other circuit breaker parts, easily cause circuit breaker failure, shortens the useful life of circuit breaker.
Therefore, how a kind of circuit breaker is provided, make in the motion process of its dynamic/static contact, be not subject to the impact of handle velocity of rotation, close soon soon divide, reduce the generation of electric arc, improve electric current disjunction energy, reduce rate of breakdown, extend the useful life of circuit breaker, become those skilled in the art's important technological problems urgently to be resolved hurrily.
Utility model content
In view of this, the utility model provides a kind of circuit breaker, to reach in the motion process that makes its dynamic/static contact, be not subject to the impact of handle velocity of rotation, close soon soon divide, reduce the generation of electric arc, improve electric current disjunction energy, reduce rate of breakdown, the object that extends the useful life of circuit breaker.
For achieving the above object, the utility model provides following technical scheme:
A kind of circuit breaker, comprising:
Housing, is provided with fixed contact and moving contact in described housing;
Operating mechanism, comprise handle and linkage, described handle is arranged on described housing rotationally, and described linkage is connected between described handle and described moving contact, for driving described moving contact contact or disconnect with described fixed contact with the rotation of described handle;
Energy storage device, comprise energy storage bar and energy storage locating part, described energy storage bar reciprocally moves and is arranged in described housing, and be affiliated on described handle one end, the other end is provided with the first limiting plate, between described energy storage bar and described housing, is provided with the first returning device; Described energy storage locating part is fixedly installed on described operating mechanism and is connected with one end of described moving contact, is provided with described the first limiting plate and coordinates the second spacing limiting plate on it, and the front end of described the second limiting plate protrudes from the front end of described moving contact.
Preferably, on described energy storage bar, be provided with the limit sliding chutes arranging along its length, on described housing, be provided with the spacing preiection coordinating with described limit sliding chutes.
Preferably, on described handle, be provided with arc chute, the two ends of described arc chute are respectively arranged with top dead-centre and bottom dead centre, and described energy storage bar one end is provided with slide protrusion, and described slide protrusion is positioned at described arc chute.
Preferably, described energy storage locating part is L-shaped, comprises the connecting plate that described the second limiting plate and one end are connected with described the second limiting plate, and the other end of described connecting plate is fixedly connected with described operating mechanism.
Preferably, described linkage comprises:
Support, is arranged on described housing rotationally, and is connected in described housing by the 3rd returning device, is provided with the first installation shaft and for the second installation shaft of described moving contact is installed on described support;
Tripping, is snapped on described support, is connected with described handle by handle and connecting rod;
Snap close, for coordinating with described tripping, is arranged in described the first installation shaft, and is connected on described support by the 4th returning device.
Preferably, described handle and connecting rod is U-shaped bolt, and one end of described U-shaped bolt is arranged on described handle rotationally, and the other end is arranged in described tripping rotationally.
Preferably, described energy storage locating part is connected on described support, is provided with First terrace on the connecting plate of described energy storage locating part, on described support, is provided with away from a side of described the second installation shaft the second step face coordinating with described First terrace.
Preferably, described the first installation shaft and described the second installation shaft are provided with the installing hole that penetrates vertically its thickness, and described support is arranged on described housing rotationally by the installing hole in described the first installation shaft; On described First terrace, be provided with projection is installed, the described projection of installing is connected with the installing hole that an end opening is opened in the second installation shaft on described second step face, and described moving contact and described energy storage locating part are clipped in the middle described support.
Preferably, described the first returning device is torsionspring, the helicoid part of described the first returning device is set on the fixed axis of described housing, and one in two stressed legs of described the first returning device is fixedly connected on described energy storage bar, and another withstands on described housing.
Preferably, described circuit breaker is 9mm circuit breaker.
Can find out from technique scheme, the circuit breaker that the utility model provides, comprises housing, operating mechanism and energy storage device, wherein, is provided with fixed contact and moving contact in housing; Operating mechanism comprises handle and linkage, and handle is arranged on housing rotationally, and linkage is connected between handle and moving contact, for driving moving contact contact with fixed contact or disconnect with the rotation of handle; Energy storage device comprises energy storage bar and energy storage locating part, and energy storage bar reciprocally moves and is arranged in housing, and be affiliated on handle one end, and the other end is provided with the first limiting plate, is provided with the first returning device between energy storage bar and housing; Energy storage locating part is fixedly installed on operating mechanism and is connected with one end of moving contact, is provided with and coordinates the second spacing limiting plate with the first limiting plate on it, and the front end of the second limiting plate protrudes from the front end of moving contact.In the time of closure, driving handle, the linkage being connected on handle drives moving contact to move to fixed contact, also have certain distance between moving contact and fixed contact time, because the front end of the second limiting plate protrudes from moving contact, so the first limiting plate first contacts with the second limiting plate, stop linkage to continue to drive moving contact close to fixed contact, because handle at this moment is still rotating, so moving contact generation deformation, elastic potential energy increases gradually, meanwhile, due to the rotation of handle, being affiliated to energy storage bar on handle overcomes the first returning device and slowly moves to handle place direction, after handle rotate in place, the second limiting plate on the first limiting plate on energy storage bar and energy storage locating part is threaded off, stop spacing, moving contact obtains faster spot speed bullet to fixed contact, complete the closure of dynamic/static contact, in the time disconnecting, reverse push fixed handle, the linkage being connected on handle drives moving contact away from fixed contact, and energy storage bar is got back to initial position under the effect of the first returning device, so that next time is spacing.By increase energy storage device in circuit breaker, make moving contact can obtain speed faster to the cephalomotor later stage of stationary contact, reach the object of closing soon soon opening, itself and lever operated speed speed are had nothing to do, reduce the generation of electric arc, improve electric current disjunction energy, reduced rate of breakdown, extended the useful life of circuit breaker.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The circuit breaker that Fig. 1 provides for the utility model embodiment removes the internal structure schematic diagram after lid;
The circuit breaker that Fig. 2 provides for the utility model embodiment removes the partial structurtes schematic diagram after lid;
The syndeton schematic diagram of the breaker energy storage device that Fig. 3 provides for the utility model embodiment;
The front view of energy storage bar and handle in the circuit breaker that Fig. 4 provides for the utility model embodiment;
The rearview of energy storage bar and handle in the circuit breaker that Fig. 5 provides for the utility model embodiment;
The structural representation of energy storage locating part in the circuit breaker that Fig. 6 provides for the utility model embodiment;
The Facad structure schematic diagram of the circuit breaker medium-height trestle that Fig. 7 provides for the utility model embodiment;
The structure schematic diagram of the circuit breaker medium-height trestle that Fig. 8 provides for the utility model embodiment.
Embodiment
The utility model provides a kind of circuit breaker, to reach in the motion process that makes its dynamic/static contact, is not subject to the impact of handle velocity of rotation, soon close and divide soon, reduce the generation of electric arc, improve electric current disjunction energy, reduce rate of breakdown, the object that extends the useful life of circuit breaker.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-Fig. 3, the circuit breaker that Fig. 1 provides for the utility model embodiment removes the internal structure schematic diagram after lid; The circuit breaker that Fig. 2 provides for the utility model embodiment removes the partial structurtes schematic diagram after lid; The syndeton schematic diagram of the breaker energy storage device that Fig. 3 provides for the utility model embodiment.
A kind of circuit breaker that the utility model provides, comprises housing 1, operating mechanism and energy storage device.
Wherein, housing 1 mainly plays a part support and protect its inner part, is provided with fixed contact 12 and moving contact 10 in housing 1, in addition, is also provided with overload system 15, arc quenching system 16 and battery short circuit system 17; Operating mechanism comprises handle 3 and linkage, and handle 3 is arranged on housing 1 rotationally, and linkage is connected between handle 3 and moving contact 10, for driving moving contact 10 contact or disconnect with fixed contact 12 with the rotation of handle 3; Energy storage device comprises energy storage bar 4 and energy storage locating part 11, and energy storage bar 4 reciprocally moves and is arranged in housing 1, and be affiliated on handle 3 one end, and the other end is provided with the first limiting plate, is provided with the first returning device 2 between energy storage bar 4 and housing 1; Energy storage locating part 11 is fixedly installed on operating mechanism and is connected with one end of moving contact 10, is provided with and coordinates the second spacing limiting plate with the first limiting plate on it, and the front end of the second limiting plate protrudes from the front end of moving contact 10.
Compared with prior art, the circuit breaker that the utility model provides, in the time of closure, driving handle 3, being connected to linkage on handle 3 drives moving contact 10 to overcome torsion spring 13 to move to fixed contact 12, meanwhile, the energy storage locating part 11 that be arranged on operating mechanism one end same with moving contact 10 links with moving contact 10, also have certain distance between moving contact 10 and fixed contact 12 time, because the front end of the second limiting plate protrudes from moving contact 10, the first limiting plate first contacts with the second limiting plate, stop linkage to continue to drive moving contact 10 close to fixed contact 12, because handle 3 at this moment is still rotating, so there is deformation in moving contact 10, elastic potential energy increases gradually, meanwhile, due to the rotation of handle 3, being affiliated to energy storage bar 4 on handle 3 overcomes the first returning device 2 and slowly moves to handle 3 place directions, after handle 3 rotate in place, the second limiting plate on the first limiting plate on energy storage bar 4 and energy storage locating part 11 is threaded off, stop spacing, moving contact 10 with spot speed bullet faster to fixed contact 12, complete the closure of dynamic/static contact,
In the time disconnecting, reverse push fixed handle 3, the linkage being connected on handle 3 drives moving contact 10 away from fixed contact 12 under the elastic force effect of torsion spring 13, and energy storage bar 4 is got back to initial position under the effect of the first returning device 2, so that next time is spacing.By increase energy storage device in circuit breaker, make moving contact 10 can obtain speed faster in the process moving to fixed contact 12, reach the object of closing soon soon opening, itself and lever operated speed speed are had nothing to do, reduce the generation of electric arc, improve electric current disjunction energy, reduced rate of breakdown, extended the useful life of circuit breaker.
The mode that energy storage locating part 11 and moving contact 10 link has a variety of, and in the utility model embodiment, energy storage locating part 11 is connected with moving contact 10 by interlock pin 14.
Because energy storage bar 4 needs reciprocating motion in the course of the work, and its one end is unfixing, and the other end is just affiliated on handle 3, easily depart from its original position, cause limit effect undesirable or can not be spacing, therefore, in the utility model embodiment, on energy storage bar 4, be provided with the limit sliding chutes arranging along its length, on housing 1, be provided with the spacing preiection coordinating with limit sliding chutes, by being set on energy storage bar 4, limit sliding chutes matches with the spacing preiection on housing 1, make energy storage bar 4 in reciprocating motion, remain in controlled scope, ensure its limit effect.
If in the time that handle 3 starts to rotate, energy storage bar 4 is immediately thereupon to handle 3 place direction motions, in order to make the first limiting plate still can carry out spacing to the second limiting plate in the time that energy storage locating part 11 arrives, what just the first limiting plate of energy storage bar 4 ends need to be arranged is very wide, this just need to increase the length of whole energy storage bar 4, but, Shell of circuit breaker 1 inner space is narrow and small, especially in 9mm circuit breaker, be difficult to place the energy storage bar 4 of length like this, therefore, in the utility model embodiment, refer to Fig. 4 and Fig. 5, the front view of energy storage bar and handle in the circuit breaker that Fig. 4 provides for the utility model embodiment, the rearview of energy storage bar and handle in the circuit breaker that Fig. 5 provides for the utility model embodiment, on handle 3, be provided with arc chute, the two ends of arc chute are respectively arranged with top dead-centre and bottom dead centre, energy storage bar 4 one end are provided with slide protrusion, slide protrusion is positioned at arc chute, by this setting, in the time that handle 3 rotates, because slide protrusion slides in arc chute, energy storage bar 4 does not move with handle 3 immediately, but in the time that slide protrusion slides into arc chute end, after coordinating with bottom dead centre, just move to handle 3 place directions with the rotation of handle 3, like this, the first limiting plate does not just need larger width, to such an extent as to energy storage bar 4 is long, further, this set can also reduce energy storage bar 4 in handle 3 direction motion processes, the angle that depart from its one end coordinating with handle 3 and the one end that is provided with the first limiting plate, be convenient to the return of energy storage bar 4.
Energy storage locating part 11 can adopt various shape, in the utility model embodiment, refers to Fig. 6, the structural representation of energy storage locating part in the circuit breaker that Fig. 6 provides for the utility model embodiment.Energy storage locating part 11 is L-shaped, comprises the connecting plate that the second limiting plate and one end are connected with the second limiting plate, and the other end of connecting plate is fixedly connected with operating mechanism.
Linkage can adopt various structures to realize, in the utility model embodiment, linkage comprises support 9, tripping 6 and snap close 7, wherein, refer to Fig. 7 and Fig. 8, the Facad structure schematic diagram of the circuit breaker medium-height trestle that Fig. 7 provides for the utility model embodiment; The structure schematic diagram of the circuit breaker medium-height trestle that Fig. 8 provides for the utility model embodiment, support 9 is arranged on housing 1 rotationally, and be connected in housing 1 by the 3rd returning device 8, on support 9, be provided with the first installation shaft 91 and for the second installation shaft 92 of moving contact 10 is installed; Tripping 6 is snapped on support 9, is connected with handle 3 by handle and connecting rod 5; Snap close 7, for coordinating with tripping 6, is arranged in the first installation shaft 91, and is connected on support 9 by the 4th returning device.In the course of the work, stir handle 3, handle and connecting rod 5 promotes tripping 6, and tripping 6 drives support 9, and support 9 drives energy storage locating part 11 and moving contact 10 to move.The helicoid part of torsion spring 13 is set in the second installation shaft 92, and one in two stressed legs withstands on housing 1, and another is fixedly connected on snap close 7.
Preferably, in order to make linkage can adapt to the circuit breaker that thickness is less, in the utility model embodiment, handle and connecting rod 5 is U-shaped bolt, and one end of U-shaped bolt is arranged on handle 3 rotationally, and the other end is arranged in tripping 6 rotationally, further, energy storage locating part 11 is connected on support 9, is provided with First terrace 111 on the connecting plate of energy storage locating part 11, on support 9, is provided with away from a side of the second installation shaft 92 the second step face 93 coordinating with First terrace 111.The first installation shaft 91 and the second installation shaft 92 on support 9 are provided with the installing hole that penetrates vertically its thickness, and support 9 is arranged on housing 1 rotationally by the installing hole in the first installation shaft 91; On First terrace 111, be provided with projection 112 is installed, the installing hole that installation projection 112 and an end opening are opened in the second installation shaft 92 on second step face 93 is connected, and moving contact 10 is clipped in the middle support 9 with energy storage locating part 11.
Further, the first returning device 2 is torsionspring, and the helicoid part of the first returning device 2 is set on the fixed axis of housing 1, and one in the stressed leg of the first 2 two of returning devices is fixedly connected on energy storage bar 4, and another withstands on housing 1.
In the utility model embodiment, circuit breaker is 9mm circuit breaker.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. a circuit breaker, is characterized in that, comprising:
Housing (1), is provided with fixed contact (12) and moving contact (10) in described housing (1);
Operating mechanism, comprise handle (3) and linkage, described handle (3) is arranged on described housing (1) rotationally, described linkage is connected between described handle (3) and described moving contact (10), for driving described moving contact (10) contact or disconnect with described fixed contact (12) with the rotation of described handle (3);
Energy storage device, comprise energy storage bar (4) and energy storage locating part (11), described energy storage bar (4) reciprocally moves and is arranged in described housing (1), be affiliated on described handle (3) one end, the other end is provided with the first limiting plate, between described energy storage bar (4) and described housing (1), is provided with the first returning device (2); Described energy storage locating part (11) is fixedly installed on described operating mechanism and is connected with one end of described moving contact (10), on it, be provided with described the first limiting plate and coordinate the second spacing limiting plate, the front end of described the second limiting plate protrudes from the front end of described moving contact (10).
2. circuit breaker according to claim 1, is characterized in that, is provided with the limit sliding chutes arranging along its length on described energy storage bar (4), and described housing is provided with the spacing preiection coordinating with described limit sliding chutes on (1).
3. circuit breaker according to claim 1, it is characterized in that, described handle is provided with arc chute on (3), the two ends of described arc chute are respectively arranged with top dead-centre and bottom dead centre, described energy storage bar (4) one end is provided with slide protrusion, and described slide protrusion is positioned at described arc chute.
4. circuit breaker according to claim 1, it is characterized in that, described energy storage locating part (11) is L-shaped, comprises the connecting plate that described the second limiting plate and one end are connected with described the second limiting plate, and the other end of described connecting plate is fixedly connected with described operating mechanism.
5. circuit breaker according to claim 4, is characterized in that, described linkage comprises:
Support (9), be arranged on rotationally on described housing (1), and be connected in described housing (1) by the 3rd returning device (8), on described support (9), be provided with the first installation shaft (91) and for second installation shaft (92) of described moving contact (10) is installed;
Tripping (6), is snapped in described support (9) upper, is connected with described handle (3) by handle and connecting rod (5);
Snap close (7), for coordinating with described tripping (6), is arranged on described the first installation shaft (91) upper, and is connected on described support (9) by the 4th returning device.
6. circuit breaker according to claim 5, it is characterized in that, described handle and connecting rod (5) is U-shaped bolt, and it is upper that one end of described U-shaped bolt is arranged on described handle (3) rotationally, and the other end is arranged in described tripping (6) rotationally.
7. circuit breaker according to claim 5, it is characterized in that, described energy storage locating part (11) is connected on described support (9), on the connecting plate of described energy storage locating part (11), be provided with First terrace (111), described support (9) is upper is provided with away from a side of described the second installation shaft (92) the second step face (93) coordinating with described First terrace (111).
8. circuit breaker according to claim 7, it is characterized in that, described the first installation shaft (91) and described the second installation shaft (92) are provided with the installing hole that penetrates vertically its thickness, and described support (9) is arranged on described housing (1) rotationally by the installing hole in described the first installation shaft (91); On described First terrace (111), be provided with projection (112) is installed, the described projection (112) of installing is connected with the installing hole that an end opening is opened in the second installation shaft (92) on described second step face (93), and described moving contact (10) is clipped in the middle described support (9) with described energy storage locating part (11).
9. circuit breaker according to claim 1, it is characterized in that, described the first returning device (2) is torsionspring, the helicoid part of described the first returning device (2) is set on the fixed axis of described housing (1), one in (2) two stressed legs of described the first returning device is fixedly connected on described energy storage bar (4) above, and another withstands on described housing (1).
10. circuit breaker according to claim 1, is characterized in that, described circuit breaker is 9mm circuit breaker.
CN201420007301.2U 2014-01-02 2014-01-02 Breaker Withdrawn - After Issue CN203839310U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420007301.2U CN203839310U (en) 2014-01-02 2014-01-02 Breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420007301.2U CN203839310U (en) 2014-01-02 2014-01-02 Breaker

Publications (1)

Publication Number Publication Date
CN203839310U true CN203839310U (en) 2014-09-17

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CN201420007301.2U Withdrawn - After Issue CN203839310U (en) 2014-01-02 2014-01-02 Breaker

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103681139A (en) * 2014-01-02 2014-03-26 浙江德隆电器有限公司 Circuit breaker
CN105845521A (en) * 2016-05-31 2016-08-10 乐清市也为电气有限公司 Moving contact operating mechanism of small-size circuit breaker

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103681139A (en) * 2014-01-02 2014-03-26 浙江德隆电器有限公司 Circuit breaker
CN103681139B (en) * 2014-01-02 2015-12-09 浙江德隆电器有限公司 A kind of circuit breaker
CN105845521A (en) * 2016-05-31 2016-08-10 乐清市也为电气有限公司 Moving contact operating mechanism of small-size circuit breaker
WO2017206581A1 (en) * 2016-05-31 2017-12-07 乐清市也为电气有限公司 Moving contact operating mechanism for miniature circuit breaker

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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20140917

Effective date of abandoning: 20151209

C25 Abandonment of patent right or utility model to avoid double patenting