CN106783423A - A kind of operating mechanism of electric switch - Google Patents

A kind of operating mechanism of electric switch Download PDF

Info

Publication number
CN106783423A
CN106783423A CN201710025816.3A CN201710025816A CN106783423A CN 106783423 A CN106783423 A CN 106783423A CN 201710025816 A CN201710025816 A CN 201710025816A CN 106783423 A CN106783423 A CN 106783423A
Authority
CN
China
Prior art keywords
poles
moving contact
electric switch
pin
hole
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.)
Granted
Application number
CN201710025816.3A
Other languages
Chinese (zh)
Other versions
CN106783423B (en
Inventor
王亮华
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.)
WENZHOU AOELEC ELECTRICAL CO Ltd
Original Assignee
Yueqing Yewei Electric 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 Yueqing Yewei Electric Co Ltd filed Critical Yueqing Yewei Electric Co Ltd
Priority to CN201710025816.3A priority Critical patent/CN106783423B/en
Publication of CN106783423A publication Critical patent/CN106783423A/en
Priority to PCT/CN2017/112030 priority patent/WO2018130006A1/en
Application granted granted Critical
Publication of CN106783423B publication Critical patent/CN106783423B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02Housings; Casings; Bases; Mountings
    • H01H71/0207Mounting or assembling the different parts of the circuit breaker
    • H01H71/0214Housing or casing lateral walls containing guiding grooves or special mounting facilities
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/002Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00Protective 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
    • H01H73/02Details
    • H01H73/04Contacts

Abstract

Breaker is also referred to as the present invention relates to a kind of electric switch, Operation switch closure or the operating mechanism for disconnecting in electric switch is referred in particular to.The present invention is achieved by the following technical solutions:A kind of operating mechanism of electric switch, it is characterised in that:N poles operation device is additionally provided between the middle seat and base of the electric switch, N poles operation device includes N poles moving contact, the second extension spring, connecting shaft and contradicts pin, in the elongated hole that the connecting shaft is placed in electric switch above seat, N poles moving contact middle part is provided with arc resistance surface, the pin that contradicts is arranged between the middle seat of electric switch and base, and be correspondingly arranged with arc resistance surface, second extension spring one end is connected on connecting hole or connection boss, and the other end is connected on the middle seat of electric switch or base.By using such scheme, pressure-resistant effect is good when the present invention provides a kind of disjunction, it is not easy to make the operating mechanism of the new electric switch that product bursts.

Description

A kind of operating mechanism of electric switch
Technical field
Be also referred to as breaker the present invention relates to a kind of electric switch, refer in particular in electric switch Operation switch closure or The operating mechanism of disconnection.
Background technology
The operating mechanism of existing electric switch, typically in the following ways, L poles, N poles moving contact be separately fixed at L poles, On the moving contact rack of N poles, then L poles, N poles moving contact rack are arranged on the both sides of lever, and lock and tripping are also disposed at lever On, now organization volume is big, and mechanism kinematic is dumb, and breaking speed is slow, L poles, and N poles moving contact is respectively positioned at up and down the two of middle seat Side, the both sides of lever are arranged on because of L poles, N poles moving contact rack, and mechanism section L poles can not isolate with N poles, during disjunction high current Electric arc and the easy short circuit of gaseous conductor cause product to burst makes product disjunction fail.And there is the pressure-resistant wind for puncturing after disjunction Danger, it is impossible to meet user's use requirement.
The content of the invention
The present invention overcomes the problem that prior art is present, there is provided pressure-resistant effect is good during a kind of disjunction, it is not easy to fry product The operating mechanism of the new electric switch for splitting.
Above-mentioned purpose is realized, the present invention is achieved by the following technical solutions:A kind of operating mechanism of electric switch, bag L poles operation device is included, wherein L poles operation device includes L poles moving contact, tripping, L poles moving contact rack, latch spring, lock Button and the first extension spring, wherein L poles moving contact are fixedly installed on moving contact rack, and long through-hole is provided with the moving contact rack of L poles, Bearing pin is provided with long through-hole, the two ends of the bearing pin are arranged on the middle seat and upper lid of electric switch, described first extension spring one end Be connected on the moving contact rack of L poles, and the top of long through-hole be located at the tie point of L poles moving contact rack, the first extension spring it is another One end be fixedly connected on the middle seat of electric switch or the miscellaneous part that is fixedly connected with middle seat on, the tripping is hinged and is arranged on The upper end of L poles moving contact rack, is connected between tripping and the handle of electric switch by first connecting rod, and the lock middle part passes through The through hole of setting is movably set on bearing pin, and being extended above lock has and can contradict supporting for cooperation limitation tripping rotation with tripping Haptic element, the lock lower section is provided with promotion pin and resetting pin, wherein promoting, pin is corresponding with the electrical apparatus release push rod of electric switch to be set Put, the top ends of the resetting pin are provided with spring base, and described latch spring one end is contradicted on spring base, it is characterised in that: N poles operation device is additionally provided between the middle seat and base of the electric switch, N poles operation device includes N and extremely moves tactile Head, the second extension spring, connecting shaft and conflict pin, in the elongated hole that the connecting shaft is placed in electric switch above seat, connecting shaft connection In N poles moving contact and the top of L poles moving contact rack, moving contact middle part in the N poles is provided with arc resistance surface, the conflict pin It is arranged between the middle seat of electric switch and base, and is correspondingly arranged with arc resistance surface, in the arc resistance surface of N poles moving contact Side is provided with connecting hole or connection boss, and second extension spring one end is connected on connecting hole or connection boss, and the other end is connected to electricity On the middle seat or base of air cock, the N poles moving contact lower end is contact.
By using such scheme, the product can also make N extremely break when L poles operating mechanism goes wrong very well Open, the need for so meeting special occasions, wherein N poles operation device includes N poles moving contact, the second extension spring, connecting shaft and supports The plan of establishment of contact pin, can so realize the excess of stroke function of N poles moving contact by the second extension spring, make contact effect more Good, N poles operation device was closed before L poles operation device closure in the present embodiment in addition, was disconnected after disconnection, these actions Be also in the field it is conventional, it is described herein we be just not described in detail.
The further setting of the present invention is:Arc resistance surface in the middle part of the moving contact of the N poles is circular arc resistance surface, described Contradict pin and be provided with two, two contradict pin and are spaced apart, its circular arc resistance surface can be with two conflicts when N poles moving contact is rotated Pin is contradicted and coordinated.
Do not influenceed by miscellaneous part when rotating, contradicted in addition by using such scheme, such N poles moving contact Pin also acts as the effect of support.
The further setting of the present invention is:The upper end of L poles moving contact rack is provided with projection, the axle center of the projection Position is provided with mounting hole, and the projection is located in the elongated hole of middle seat, and the connecting shaft is plugged in mounting hole, the N poles Moving contact upper end is provided with connection through hole, and N poles moving contact is set in connecting shaft by connecting through hole.
By using such scheme, the installation so to connecting shaft is more consolidated, and connecting shaft is not with moving contact rack in addition Only contact many, but also ensure that connecting shaft will not the leakage of electricity well.
The further setting of the present invention is:After N poles operation devices is closed a floodgate, circular arc resistance surface separates with conflict pin and sets Put.
By using such scheme, so can be very good to prevent heat to be transmitted on conflict pin, product is not easy hair Heat.
It is of the invention it is last setting be:The length of the elongated hole in the electric switch above seat is less than or equal to L poles moving contact Width above support, moving contact rack top in L poles all blocks setting to elongated hole when L poles operation device is closed.
By using such scheme, the leakage of electricity is prevented well, also prevent electric arc from introducing well, be further ensured that product Security.
The invention will be further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structural representation that the present invention implements reflection L poles operation device;
Fig. 2 is the structural representation that the present invention implements reflection N poles operation device;
Fig. 3 is the structure chart of N poles moving contact in the embodiment of the present invention;
Fig. 4 is the structure chart of N poles moving contact when the embodiment of the present invention disconnects;
Fig. 5 is the structure chart of the N poles moving contact when embodiment of the present invention starts to close a floodgate;
The structure chart of N poles moving contact when Fig. 6 is embodiment of the present invention combined floodgate half;
Fig. 7 is the structure chart of N poles moving contact after the embodiment of the present invention is closed a floodgate;
Fig. 8 is the structure chart of L poles moving contact rack top covering elongated hole after the embodiment of the present invention is closed a floodgate;
Fig. 9 is the structure chart that embodiment of the present invention connecting shaft is installed.
Specific embodiment
As shown in figures 1-8, a kind of operating mechanism of electric switch, includes L poles operation device 1, wherein L poles operation device 1 includes L poles moving contact 11, tripping 12, L poles moving contact rack 13, latch spring 14, the extension spring 16 of lock 15 and first, wherein L Pole moving contact 11 is fixedly installed on moving contact rack 13, is provided with L poles moving contact rack 13 in long through-hole, long through-hole and set There is bearing pin, the two ends of the bearing pin are arranged on the middle seat 3 and upper lid of electric switch, described one end of first extension spring 16 is connected to L poles On moving contact rack 13, and the top of long through-hole is located at the tie point of L poles moving contact rack 13, the other end of the first extension spring 16 Be fixedly connected on the middle seat 3 of electric switch or the miscellaneous part that is fixedly connected with middle seat on, the tripping 12 is hinged and is arranged on L The upper end of pole moving contact rack 13, is connected between tripping 12 and the handle of electric switch by first connecting rod, in the lock 15 Portion is movably set on bearing pin by the through hole for setting, and the top of lock 15 is extended to have to be contradicted with tripping 12 and coordinates limitation to jump Button 12 rotate conflict pin 151, it is described lock 15 lower section be provided with promotion pin 152 and resetting pin 153, wherein promote pin 152 with The electrical apparatus release push rod of electric switch is correspondingly arranged, and the top ends of the resetting pin 153 are provided with spring base, the latch spring 14 One end contradicts the other end on spring base and contradicts on middle seat or shell, also declares special before above-mentioned technical characteristic applicant Profit, it is all in the present embodiment we be just not described in detail, in the present embodiment, the middle seat 3 and base of the electric switch Between be additionally provided with N poles operation device 2, N poles operation device 2 includes N poles moving contact 21, the second extension spring 22, connecting shaft 23 are placed in electric switch in the elongated hole 31 of the top of seat 3 with conflict pin 24, the connecting shaft 23, and connecting shaft 23 is connected to N and extremely moves The top of contact 21 and L poles moving contact rack 13, the movement of such L poles moving contact rack 13 can drive N poles moving contact 21 to move, The middle part of N poles moving contact 21 is provided with arc resistance surface 211, described to contradict middle seat 3 and bottom that pin 24 is arranged on electric switch Between seat, and it is correspondingly arranged with arc resistance surface 211, the top of arc resistance surface 21 of N poles moving contact 21 is provided with connecting hole 212 Or boss is connected, the one end of the second extension spring 22 is connected on connecting hole 212 or connection boss, and the other end is connected in electric switch On seat 3 or base, the lower end of N poles moving contact 21 is contact 213.By using such scheme, the product can very well in L poles When going wrong N poles can also disconnect operation device 1, and the need for so meeting special occasions, wherein N poles operation device 2 exists The excess of stroke function of N poles moving contact can be realized under the cooperation of the second extension spring, connecting shaft and conflict pin, makes contact effect more It is good.
In embodiments of the present invention, the arc resistance surface 211 at the middle part of N poles moving contact 21 is circular arc resistance surface 211, The conflict pin 24 is provided with two, and two contradict pin 24 and are spaced apart, and actually can also be one or more, and N is extremely moved and touched It is first 21 rotate when its circular arc resistance surface 211 can with two contradict pins 24 contradict coordinate, such N poles moving contact 21 rotate when Time is not influenceed by miscellaneous part, and the effect that pin 24 also acts as support is contradicted in addition, and it is to meet the action of the excess of stroke of N poles moving contact 21 It is necessary.
In embodiments of the present invention, the upper end of L poles moving contact rack 13 is provided with projection 131, the axle of the projection 131 Center is provided with mounting hole, and the projection 131 is located in the elongated hole 31 of middle seat 3, and the connecting shaft 23 is plugged in installation Kong Zhong, the upper end of N poles moving contact 21 is provided with connection through hole 214, and N poles moving contact 21 is by connecting the company of being set in of through hole 214 In spindle 23, the installation so to connecting shaft 23 is more consolidated, and connecting shaft 23 is not only contacted with L poles moving contact rack 13 in addition It is many, but also ensure that connecting shaft 23 will not the leakage of electricity well, there is provided security.In the present embodiment, N poles operation device 2 After combined floodgate, circular arc resistance surface 211 is spaced apart with pin 24 is contradicted, and so can be very good to prevent heat to be transmitted to conflict pin 24 On, product is not easy heating.
In embodiments of the present invention, the length of the elongated hole 31 in the electric switch above seat is less than or equal to L poles moving contact The width of the top of support 13, setting is all blocked in the top of L poles moving contact rack 13 to elongated hole 31 when L poles operation device 1 is closed, when It also can be that so can be very good to prevent the leakage of electricity that right major part is blocked, and also prevent electric arc from introducing well, be further ensured that product The security of product.
Above-described embodiment is only used for illustrating inventive concept of the invention, rather than the restriction to rights protection of the present invention, All changes for carrying out unsubstantiality to the present invention using this design, all should fall into protection scope of the present invention.

Claims (6)

1. a kind of operating mechanism of electric switch, includes L poles operation device, and wherein L poles operation device includes L and extremely moves tactile Head, tripping, L poles moving contact rack, latch spring, lock and the first extension spring, wherein L poles moving contact are fixedly installed on moving contact branch On frame, long through-hole is provided with the moving contact rack of L poles, bearing pin is provided with long through-hole, the two ends of the bearing pin are arranged on electrically opens Close middle seat and upper lid on, described first extension spring one end is connected on the moving contact rack of L poles, and with the company of L poles moving contact rack Contact is located at the top of long through-hole, and the other end of the first extension spring is fixedly connected on the middle seat of electric switch or is fixed with middle seat and connects On the miscellaneous part for connecing, the tripping is hinged the upper end for being arranged on L poles moving contact rack, between tripping and the handle of electric switch Connected by first connecting rod, the lock middle part is movably set on bearing pin by the through hole for setting, and lock top is extended Having can contradict the conflict pin for coordinating limitation tripping to rotate with tripping, and the lock lower section is provided with promotion pin and resetting pin, wherein Pin is promoted to be correspondingly arranged with the electrical apparatus release push rod of electric switch, the top ends of the resetting pin are provided with spring base, the lock Spring one end is contradicted on spring base, it is characterised in that:The operation of N poles is additionally provided between the middle seat and base of the electric switch Device, N poles operation device includes N poles moving contact, the second extension spring, connecting shaft and contradicts pin, and the connecting shaft is placed in electricity In elongated hole in air cock above seat, connecting shaft is connected to the top of N poles moving contact and L poles moving contact rack, and the N is extremely moved and touched Centriciput is provided with arc resistance surface, and the conflict pin is arranged between the middle seat of electric switch and base, and is contradicted with arc Face is correspondingly arranged, and the arc resistance surface top of N poles moving contact is provided with connecting hole or connection boss, and second extension spring one end is connected to On connecting hole or connection boss, the other end is connected on the middle seat of electric switch or base, and the N poles moving contact lower end is tactile Point.
2. the operating mechanism of electric switch according to claim 1, it is characterised in that:Arc in the middle part of the moving contact of the N poles Shape resistance surface is circular arc resistance surface, and the conflict pin is provided with two, and two contradict pin and are spaced apart, and N poles moving contact is rotated When its circular arc resistance surface can with two contradict pin contradict coordinate.
3. the operating mechanism of electric switch according to claim 1 and 2, it is characterised in that:L poles moving contact rack Upper end is provided with projection, and the axle center of the projection is provided with mounting hole, and the projection is located in the elongated hole of middle seat, described Connecting shaft is plugged in mounting hole, and the N poles moving contact upper end is provided with connection through hole, and N poles moving contact is by connecting through hole set It is located in connecting shaft.
4. the operating mechanism of electric switch according to claim 3, it is characterised in that:After N poles operation device is closed a floodgate, Circular arc resistance surface is spaced apart with pin is contradicted.
5. the operating mechanism of electric switch according to claim 3, it is characterised in that:In the electric switch above seat The length of elongated hole is less than or equal to the width above the moving contact rack of L poles, moving contact rack top in L poles when L poles operation device is closed Setting is all blocked to elongated hole.
6. the operating mechanism of electric switch according to claim 4, it is characterised in that:In the electric switch above seat The length of elongated hole is less than or equal to the width above the moving contact rack of L poles, moving contact rack top in L poles when L poles operation device is closed Setting is all blocked to elongated hole.
CN201710025816.3A 2017-01-13 2017-01-13 A kind of operating mechanism of electric switch Active CN106783423B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201710025816.3A CN106783423B (en) 2017-01-13 2017-01-13 A kind of operating mechanism of electric switch
PCT/CN2017/112030 WO2018130006A1 (en) 2017-01-13 2017-11-21 Operating mechanism for electrical switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710025816.3A CN106783423B (en) 2017-01-13 2017-01-13 A kind of operating mechanism of electric switch

Publications (2)

Publication Number Publication Date
CN106783423A true CN106783423A (en) 2017-05-31
CN106783423B CN106783423B (en) 2018-08-07

Family

ID=58946417

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710025816.3A Active CN106783423B (en) 2017-01-13 2017-01-13 A kind of operating mechanism of electric switch

Country Status (2)

Country Link
CN (1) CN106783423B (en)
WO (1) WO2018130006A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108155067A (en) * 2018-02-02 2018-06-12 乐清市也为电气有限公司 The leakage circuit breakers that a kind of firewire and zero curve can all disconnect
WO2018130006A1 (en) * 2017-01-13 2018-07-19 乐清市也为电气有限公司 Operating mechanism for electrical switch
WO2018130007A1 (en) * 2017-01-13 2018-07-19 乐清市也为电气有限公司 Electrical switch

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573259A (en) * 1983-12-14 1986-03-04 General Electric Company Method of making an automated Q-line circuit breaker
EP1115132A1 (en) * 2000-01-07 2001-07-11 Schneider Electric Industries SA Pole for electrical circuit breaker with arc extinguishing chamber provided with dielectric shields
JP2005209466A (en) * 2004-01-22 2005-08-04 Fuji Electric Fa Components & Systems Co Ltd Switching mechanism of circuit breaker
CN202585298U (en) * 2012-05-25 2012-12-05 浙江德隆电器有限公司 Leakage circuit breaker with non-symmetrical double-arc-strike device
CN203055823U (en) * 2013-01-24 2013-07-10 浙江天正电气股份有限公司 Novel electric leakage circuit breaker
CN203931970U (en) * 2014-06-30 2014-11-05 温州罗格朗电器有限公司 The extremely breakable monolithic devices residual current circuit breaker of a kind of N
CN206340502U (en) * 2017-01-13 2017-07-18 乐清市也为电气有限公司 A kind of operating mechanism of electric switch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689309B1 (en) * 1992-03-31 1994-05-20 Merlin Gerin DRAWER CONTROL MECHANISM FOR NEUTRAL PHASE AND ELECTRIC CIRCUIT BREAKER.
CN202221745U (en) * 2011-09-06 2012-05-16 浙江加西亚电子电器有限公司 Small-size electric leakage circuit breaker
CN105762033B (en) * 2016-04-27 2018-09-07 乐清市也为电气有限公司 A kind of moving contact operating mechanism of leakage circuit breakers
CN106783423B (en) * 2017-01-13 2018-08-07 乐清市也为电气有限公司 A kind of operating mechanism of electric switch

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573259A (en) * 1983-12-14 1986-03-04 General Electric Company Method of making an automated Q-line circuit breaker
EP1115132A1 (en) * 2000-01-07 2001-07-11 Schneider Electric Industries SA Pole for electrical circuit breaker with arc extinguishing chamber provided with dielectric shields
JP2005209466A (en) * 2004-01-22 2005-08-04 Fuji Electric Fa Components & Systems Co Ltd Switching mechanism of circuit breaker
CN202585298U (en) * 2012-05-25 2012-12-05 浙江德隆电器有限公司 Leakage circuit breaker with non-symmetrical double-arc-strike device
CN203055823U (en) * 2013-01-24 2013-07-10 浙江天正电气股份有限公司 Novel electric leakage circuit breaker
CN203931970U (en) * 2014-06-30 2014-11-05 温州罗格朗电器有限公司 The extremely breakable monolithic devices residual current circuit breaker of a kind of N
CN206340502U (en) * 2017-01-13 2017-07-18 乐清市也为电气有限公司 A kind of operating mechanism of electric switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018130006A1 (en) * 2017-01-13 2018-07-19 乐清市也为电气有限公司 Operating mechanism for electrical switch
WO2018130007A1 (en) * 2017-01-13 2018-07-19 乐清市也为电气有限公司 Electrical switch
CN108155067A (en) * 2018-02-02 2018-06-12 乐清市也为电气有限公司 The leakage circuit breakers that a kind of firewire and zero curve can all disconnect
CN108155067B (en) * 2018-02-02 2024-01-26 温州奥来电器有限公司 Electric leakage circuit breaker with disconnectable live wire and zero line

Also Published As

Publication number Publication date
CN106783423B (en) 2018-08-07
WO2018130006A1 (en) 2018-07-19

Similar Documents

Publication Publication Date Title
CN206340502U (en) A kind of operating mechanism of electric switch
CN105762033B (en) A kind of moving contact operating mechanism of leakage circuit breakers
CN106783423A (en) A kind of operating mechanism of electric switch
CN207134306U (en) A kind of RCCB
CN202562967U (en) Rapid wiring device and testing system
CN107393770A (en) A kind of RCCB
CN206389060U (en) Environmentally friendly gas-insulated cabinet
CN203895338U (en) Isolation switch for high voltage isolation cabinet
CN205943866U (en) Two switch stop device
CN205564679U (en) Moving contact operating device of electric leakage circuit breaker
CN210467615U (en) Mistaken touch prevention button switch
CN205211684U (en) Tripping device subassembly
CN207165502U (en) A kind of RCCB
CN204375623U (en) A kind of low-tension fuse isolating switch self-locking drop-proof buckle device
CN201134399Y (en) Earth leakage breaker with indication device
CN104241006A (en) Isolating switch
CN202616153U (en) Small circuit breaker
CN202616152U (en) Operating mechanism of small circuit breaker
CN204652453U (en) A kind of open-and-close mechanism, card connector and intelligent terminal
CN204558338U (en) Isolating switch
CN207338164U (en) Electrical contact system
CN207947243U (en) A kind of control and protective switching device
CN209298053U (en) A kind of sudden change of resistivity formula contact apparatus and breaker
CN206301736U (en) A kind of distribution Special magnetic switch
CN202749738U (en) Centrally installed switchgear with underneath installed handcart

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20230518

Address after: No. 7 Zhenxing Road, Liushi Town, Leqing City, Wenzhou City, Zhejiang Province, 325604

Patentee after: WENZHOU AOELEC ELECTRICAL CO.,LTD.

Address before: Donghuangyu Village, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, 325000

Patentee before: Yueqing Yewei Electric Co.,Ltd.