CN108010816A - A kind of connecting terminal components for miniature circuit breaker - Google Patents

A kind of connecting terminal components for miniature circuit breaker Download PDF

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Publication number
CN108010816A
CN108010816A CN201711466800.2A CN201711466800A CN108010816A CN 108010816 A CN108010816 A CN 108010816A CN 201711466800 A CN201711466800 A CN 201711466800A CN 108010816 A CN108010816 A CN 108010816A
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CN
China
Prior art keywords
plate portion
circuit breaker
crimping
miniature circuit
connecting terminal
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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
Application number
CN201711466800.2A
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Chinese (zh)
Inventor
高锦
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Individual
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Individual
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Priority to CN201711466800.2A priority Critical patent/CN108010816A/en
Publication of CN108010816A publication Critical patent/CN108010816A/en
Pending legal-status Critical Current

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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
    • H01H71/08Terminals; Connections

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  • Connection Of Batteries Or Terminals (AREA)

Abstract

The invention discloses a kind of connecting terminal components for miniature circuit breaker;Including metal framework, crimping bolt, conducting terminal and metal clamp spring;Conducting terminal includes crimping plate portion and meets battery plate portion;Meet battery plate portion and be equipped with two electric intermediate plates that connect for leaving gap, two connect electric intermediate plate clamping formation and connect electrical slot;Respectively connect electric intermediate plate and be equipped with a load boss;The both ends of metal clamp spring are equipped with a sets of holes, and each load boss is inserted into a corresponding sets of holes.The present invention provides reseting elasticity by using clamp spring and improves the shape of wire connection terminal, effectively improves it and connects electric strength and ensures its stability.

Description

A kind of connecting terminal components for miniature circuit breaker
Technical field
The invention belongs to power circuit breaker technical field, and in particular to a kind of terminals subgroup for miniature circuit breaker Part.
Background technology
Patent document CN205004279U discloses a kind of plug-in type miniature circuit breaker, it includes breaker body, open circuit Device body side is equipped with card slot, plug in type connection plate is set in card slot, is equipped with the upside of plug in type connection plate and is connect with coil contact Contact portion, the plug-in type downside set Access Division, and the Access Division includes two arc contact pieces being oppositely arranged, the circular arc The arch of contact chip is oppositely arranged, and forms clamping structure.Access Division is made of two arc contact pieces, two arc contact pieces Arch is oppositely arranged, the sheathed spring outside two arc contact pieces, for providing clamping force to arc contact piece, to ensure to be clamped Portion's clamping is firmly and contact is reliable.This kind of structure by setting plug in type connection plate, using plug-in cooperation by the way of and switch Cabinet coordinates, and one end uses binding post mode, and the other end is made electrical contact with using plug in type connection plate and switchgear, avoids two-way wiring It is cumbersome with clamping, make the easier for installation of breaker, it is simpler.The structure of this kind of plug-in type miniature circuit breaker is more multiple It is miscellaneous, insufficient clamping force is caused also due to permanent deformation easily occurs in spring using the structure design of spring lifting clamping force, it is tied Structure still suffers from improvements.
The content of the invention
The object of the present invention is to provide a kind of wiring for miniature circuit breaker for being lifted and connecing electric strength and ensureing its stability Terminal assemblies.
Realizing the technical solution of the object of the invention is:A kind of connecting terminal components for miniature circuit breaker, including metal Frame, crimping bolt, conducting terminal and metal clamp spring;Conducting terminal includes crimping plate portion and meets battery plate portion;Connect and set in battery plate portion There are two electric intermediate plates that connect for leaving gap, two connect electric intermediate plate clamping formation and connect electrical slot;Electric intermediate plate is respectively connect to hold equipped with one Power boss;The both ends of metal clamp spring are equipped with a sets of holes, and each load boss is inserted into a corresponding sets of holes.
In such scheme, rectangular shape is made using steel plate in metal framework, and the top of metal framework is equipped with screw hole;Crimping spiral shell Bolt includes fastener head and screw rod, the screw hole adaptation on screw rod and metal framework.
In such scheme, the crimping plate portion of conducting terminal passes through metal framework, and is arranged in parallel with the bottom wall of metal framework; The bottom wall clamping of crimping plate portion and metal framework forms a cable folder hole;The bottom of the screw rod of crimping bolt is crimped on tension disc In portion.
In such scheme, the shape of metal clamp spring is the arc-shaped more than semicircle;The distance of two load boss is more than two The distance between a sets of holes.
In such scheme, connect and be respectively provided with an enhancing plate portion, each reinforcing plate in battery plate portion two both sides for connecing electric intermediate plate Gap is left between portion and an adjacent clamp plate portion.
In such scheme, the outboard end of crimping plate portion stretches out metal framework, and camber curling is used as guide portion upwards.
In such scheme, conducting terminal meets battery plate portion perpendicular to crimping plate portion.
In such scheme, conducting terminal is made into integration using copper coin;Metal clamp spring is made of steel.
The present invention provides reseting elasticity by using clamp spring and improves the shape of wire connection terminal, effectively improves it and connects electricity Intensity ensures its stability.
Brief description of the drawings
Fig. 1 is a kind of dimensional structure diagram of the present invention;
Fig. 2 is a kind of explosive view of connecting terminal components shown in Fig. 1;
Fig. 3 is a kind of explosive view when connecting terminal components are from another angle shown in Fig. 2;
Fig. 4 is that connecting terminal components shown in Fig. 1 remove a kind of decomposition diagram after clamp spring;
Fig. 5 is a kind of dimensional structure diagram using miniature circuit breaker made of connecting terminal components shown in Fig. 1;
Fig. 6 is a kind of internal structure schematic diagram when miniature circuit breaker is from positive angle shown in Fig. 5;
Fig. 7 is a kind of explosive view of miniature circuit breaker shown in Fig. 5;
Fig. 8 is into a kind of dimensional structure diagram of electric socket board and connecting terminal components in miniature circuit breaker shown in Fig. 5;
Fig. 9 is a kind of explosive view of electric socket board shown in Fig. 8 and connecting terminal components;
Figure 10 be electric socket board shown in Fig. 8 and connecting terminal components from another angle when a kind of explosive view.
Mark shown in attached drawing for:Base 1, power connection seat 11, sliding slot 111, plastic casing 112, anticreep caulking groove 1121, slide rail group Part 12, fixing piece 121, fixed substrate portion 1211, branch plate portion 1212, slide plate portion 1213, notch 1214, top plate 122, top pressure screw 123, plug-in switch module 2, insulation crust 21, anticreep panel 211, into electric socket board 22, weld part 221, goes out electric socket board 23, connects Line end sub-component 3, metal framework 31, belongs to the top 311 of metal framework, screw hole 312, the bottom wall 313 of metal framework, crimping bolt 32, fastener head 321, screw rod 322, conducting terminal 33, crimping plate portion 331, guide portion 3311, meets battery plate portion 332, connects electric intermediate plate 3321, electrical slot 3322 is connect, load boss 3323, strengthens plate portion 3324, metal clamp spring 34, sets of holes 341, opening/closing operation mechanism 4, static contact 41, moving contact 42, moving contact lever 421, connecting rod 422, movable contact 423, tripping 43, divide-shut brake handle 44, lock 45, torsional spring 46, overcurrent delay tripping mechanism 47, bimetal leaf 471, adjusting screw 472, short-circuit instantaneous trip mechanism 48, coil Component 481, arc-chutes 49.
Embodiment
(Embodiment 1, switch module)
The present embodiment is a kind of connecting terminal components for miniature circuit breaker, as shown in Fig. 1 to Fig. 3, the connecting terminal components 3 Including metal framework 31, crimping bolt 32, conducting terminal 33 and metal clamp spring 34;Rectangle shape is made using steel plate in metal framework Shape, the top 311 of metal framework are equipped with screw hole 312;Crimping bolt includes fastener head 321 and screw rod 322, screw rod and metal framework On screw hole adaptation;Conducting terminal includes crimping plate portion 331 and meets battery plate portion 332;The crimping plate portion of conducting terminal passes through metal Frame, and be arranged in parallel with the bottom wall 313 of metal framework;The bottom wall clamping of crimping plate portion and metal framework forms a cable clamp Hole;The bottom of the screw rod of crimping bolt is crimped in crimping plate portion;When crimping bolt in the screw hole of metal framework reciprocating rotation When, since the bottom of the screw rod of crimping bolt is crimped in crimping plate portion, and metal framework is again in the limitation of external plastic casing Under cannot rotate, therefore metal framework will be moved back and forth along the direction of screw rod, so as to utilize line pressing portion and metal framework bottom wall By the conductor clamping in cable folder hole, the electrical connection of conducting terminal and external power supply is realized.
The battery plate portion that connects of conducting terminal is made into integration perpendicular to crimping plate portion, conducting terminal using copper coin;Connect in battery plate portion Equipped with two electric intermediate plates 3321 that connect for leaving gap, two connect electric intermediate plate clamping formation and connect electrical slot 3322;Respectively connect on electric intermediate plate Equipped with one using load boss 3323 made of Sheet Metal Forming Technology;Metal clamp spring is made of steel, and the shape of metal clamp spring is More than the arc-shaped of semicircle, the both ends of metal clamp spring are equipped with a sets of holes 341, and each load boss is inserted into a corresponding sets of holes In.In concrete practice, the distance of two load boss is preferably greater than the distance between two sets of holes, generally higher than 0.05 to 0.3 millimeter;So in assembling, metal clamp spring, which needs slightly to strut, a little can just make two sets of holes be set in two load boss On, so as to form an internal stress, have to utilize and play preferable clamping effect.Connect in battery plate portion two both sides for connecing electric intermediate plate An enhancing plate portion 3324 is respectively provided with, each strengthen leaves gap between plate portion and an adjacent clamp plate portion, with obstruction free clamp The elastic deformation of plate portion.The enhancing plate portion is used to increase the bonding strength connect between battery plate portion and crimping plate portion.
In the application example, the outboard end of crimping plate portion 331 stretches out metal framework, and camber curling is used as guide portion upwards 3311 so that external wire is more easily inserted cable folder hole.
Had the following advantages using this structure:Since conducting terminal needs to be made of the excellent copper material of electric conductivity, But the intensity of copper material is poor, easy deformation make it that the electrical contact performance for connecing electrical slot is bad;The present invention is by adding metal card Spring provides for copper material and clamps elastic force, effectively overcomes above-mentioned technology drawback, and its structure more simplifies, and ensures Long Service Life.
(Application examples 1, miniature circuit breaker)
The application example is to use a kind of miniature circuit breaker made of above-described embodiment 1, as shown in Fig. 4 to Figure 10, including 1 He of base Plug-in switch module 2;Base is equipped with two power connection seats 11 and two slide track components 12, and two power connection seats are each fixed at On a corresponding slide track component;Two slide track components are arranged in parallel, and each slide track component includes fixing piece 121, top plate 122 and top pressure Screw 123;Fixing piece includes fixed substrate portion 1211, extends vertically the branch plate portion to be formed upwards from fixed substrate portion two side ends 1212nd, the slide plate portion 1213 extended to form from each branch plate portion top towards the direction bending close to another branch plate portion, each slide Leaving certain gaps uncovered by the economic plan 1214 between two slide plate portions in component;The both sides of each power connection seat are equipped with the sliding slot of one and slide plate portion adaptation 111, each slide plate portion is stretched into a corresponding sliding slot;Fixed substrate portion is equipped with mounting hole(It is not drawn on figure), fixed substrate portion leads to Crossing the mounting hole and external mounting screw itself will fix at the desired position;Top plate is located at two branch plate portions of slide track component Between, and between fixed substrate portion and the bottom wall of power connection seat, top plate is equipped with and the screw hole of top pressure screw adaptation;Top pressure screw When being rotated along preset direction, the bottom wall top pressure of top pressure screw is in fixed substrate portion, since top plate is spacing not by two plate portions It can rotate, top plate is moved away from the direction in fixed substrate portion, until top pressure is on the bottom wall of power connection seat;In top plate and slide plate Clamping action under, power connection seat is fixed on corresponding slide track component;Top pressure screw is loosened, power connection seat can be moved along slide plate It is dynamic.
Plug-in switch module include insulation crust 21, into electric socket board 22, go out electric socket board 23 and for break-make into electric mortiser Plate and the opening/closing operation mechanism 4 for going out circuit between electric socket board.It is fixed at absolutely into electric socket board and the medial extremity for going out electric socket board Edge enclosure, stretches out the insulation crust into electric socket board and the outboard end for going out electric socket board, and positioned at the both sides of insulation crust On wall body;In the application example, into electric socket board and go out plug orientation of the electric socket board perpendicular to plug-in switch module, specifically, Into electric socket board and go out the both lateral sides wall that electric socket board extends perpendicularly out insulation crust in the application example.
The transverse direction of insulation crust described herein refers to from a power connection seat to the direction of another power connection seat.
Opening/closing operation mechanism include static contact 41, stationary contact 411, moving contact 42, moving contact lever 421, connecting rod 422, Movable contact 423, tripping 43, divide-shut brake handle 44, lock 45, torsional spring 46, overcurrent delay tripping mechanism 47, short-circuit instantaneous trip machine Structure 48, arc-chutes 49;Static contact and it is electrically connected into electric socket board 22, arc-chutes are arranged on below short-circuit instantaneous trip mechanism, short circuit Instantaneous trip mechanism includes coil block 481;Coil block includes coil and the separating brake release lever in hub of a spool hole;Go out Arc chamber is located at immediately below coil block;Overcurrent delay tripping mechanism includes bimetal leaf 471 and adjusting screw 472, adjusting screw Positioned at the top of power connection seat, so as to can easily be accommodated;It is sequentially connected electrically into electric socket board and static contact, moving contact, coil, bimetal leaf It is sequentially connected electrically with electric socket board is gone out;In the application example, static contact 41 is also used as run-on tab at the same time.
In the application example, into electric socket board 22 and to go out electric socket board 23 be made into integration using copper coin;Include into electric socket board 22 The bilayer being superimposed together meets electric mortiser plate portion 222 and the welding tailgate portion 221 for being weldingly fixed on external conductor, and bilayer connects The tail end of electric mortiser plate portion extends to form welding tailgate portion towards the vertical bending in direction away from each other;Go out electric socket board structure and into The structure of electric socket board is identical.This structure has preferable electric conductivity and control temperature rise model into electric socket board, simultaneously because With two welding tailgate portions, bonding area is effectively increased, so as to lift welding performance.
Each power connection seat includes plastic casing 112 and the connecting terminal components 3 being arranged in plastic casing;Wire connection terminal Component includes metal framework 31, crimping bolt 32, conducting terminal 33 and metal clamp spring 34;Rectangle is made using steel plate in metal framework Shape, the top 311 of metal framework are equipped with screw hole 312;Crimping bolt includes fastener head 321 and screw rod 322, screw rod and metal frame Screw hole adaptation on frame;Conducting terminal includes crimping plate portion 331 and meets battery plate portion 332;Conducting terminal, which is set, is fixed on power connection seat Plastic casing inner wall on, metal framework is movably disposed in plastic casing;The crimping plate portion of conducting terminal passes through gold Belong to frame, and be arranged in parallel with the bottom wall 313 of metal framework;The bottom wall clamping of crimping plate portion and metal framework forms a cable Folder hole;The bottom of the screw rod of crimping bolt is crimped in crimping plate portion;When crimping bolt in the screw hole of metal framework reciprocating rotary When dynamic, since the bottom of the screw rod of crimping bolt is crimped in crimping plate portion, and metal framework is again under the limitation of plastic casing It cannot rotate, therefore metal framework will be moved back and forth along the direction of screw rod, so that will using line pressing portion and metal framework bottom wall Conductor clamping in cable folder hole, realizes the electrical connection of conducting terminal and external power supply.
The battery plate portion that connects of conducting terminal is made into integration perpendicular to crimping plate portion, conducting terminal using copper coin;Connect in battery plate portion Equipped with two electric intermediate plates 3321 that connect for leaving gap, two connect electric intermediate plate clamping formation and connect electrical slot 3322;Respectively connect on electric intermediate plate Equipped with one using load boss 3323 made of Sheet Metal Forming Technology;Metal clamp spring is made of steel, and the shape of metal clamp spring is More than the arc-shaped of semicircle, the both ends of metal clamp spring are equipped with a sets of holes 341, and each load boss is inserted into a corresponding sets of holes In.In concrete practice, the distance of two load boss is preferably greater than the distance between two sets of holes, generally higher than 0.05 to 0.3 millimeter;So in assembling, metal clamp spring, which needs slightly to strut, a little can just make two sets of holes be set in two load boss On, so as to form an internal stress, have to utilize and play preferable clamping effect.Connect in battery plate portion two both sides for connecing electric intermediate plate An enhancing plate portion 3324 is respectively provided with, each strengthen leaves gap between plate portion and an adjacent clamp plate portion, with obstruction free clamp The elastic deformation of plate portion.The enhancing plate portion is used to increase the bonding strength connect between battery plate portion and crimping plate portion, while if needs Will, this two enhancing plate portions can also be set and be fixed in plastic casing 112.
Into electric socket board and go out electric socket board in the swapping process with plug-in switch module, each insert or pull out corresponding One power connection seat connects electrical slot, so as to fulfill the electrical connection between plug-in switch module and two power connection seats.
In the application example, the outboard end of crimping plate portion 331 stretches out metal framework, and camber curling is used as guide portion upwards 3311 so that external wire is more easily inserted cable folder hole.
Had the following advantages using this structure:Since conducting terminal needs to be made of the excellent copper material of electric conductivity, But the intensity of copper material is poor, easy deformation make it that the electrical contact performance for connecing electrical slot is bad;The present invention is by adding metal card Spring provides for copper material and clamps elastic force, effectively overcomes above-mentioned technology drawback, and its structure more simplifies, and ensures Long Service Life.
In the application example, the outer wall of the plastic casing 112 of power connection seat 11 is equipped with anticreep caulking groove 1121, the anticreep caulking groove Shape is T-shaped;The insulation crust 21 of plug-in switch module 2 is equipped with anticreep panel 211, the shape of the anticreep panel be and Anticreep caulking groove is adapted to T-shaped;After the default station of plug-in switch module inserted base, anticreep panel is embedded in anti-deintercalation In groove;The plug orientation of plug-in switch module is the longitudinal direction of plug-in switch module, and anticreep panel is switched along plug-in The horizontal direction extension of module, namely anticreep panel is perpendicular to the plug orientation of plug-in switch module, so that along plug-in Plug-in switch module and two power connection seats are fixed on the horizontal direction of switch module.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And these The obvious changes or variations that the connotation for belonging to of the invention is extended out still falls within protection scope of the present invention.

Claims (8)

1. a kind of connecting terminal components for miniature circuit breaker, including metal framework, crimping bolt and conducting terminal, its feature It is:Further include metal clamp spring;Conducting terminal includes crimping plate portion and meets battery plate portion;Meet battery plate portion and leave gap equipped with two Connect electric intermediate plate, two connect electric intermediate plate clamping and are formed and connect electrical slot;Respectively connect electric intermediate plate and be equipped with a load boss;Metal clamp spring Both ends be equipped with a sets of holes, each load boss is inserted into a corresponding sets of holes.
2. the connecting terminal components according to claim 1 for miniature circuit breaker, it is characterised in that:Metal framework uses Rectangular shape is made in steel plate, and the top of metal framework is equipped with screw hole;Crimping bolt includes fastener head and screw rod, screw rod and metal frame Screw hole adaptation on frame.
3. the connecting terminal components according to claim 2 for miniature circuit breaker, it is characterised in that:The pressure of conducting terminal Line plate portion passes through metal framework, and is arranged in parallel with the bottom wall of metal framework;The bottom wall clamping shape of crimping plate portion and metal framework Into a cable folder hole;The bottom of the screw rod of crimping bolt is crimped in crimping plate portion.
4. the connecting terminal components according to claim 3 for miniature circuit breaker, it is characterised in that:The shape of metal clamp spring Shape is the arc-shaped more than semicircle;The distance of two load boss is more than the distance between two sets of holes.
5. the connecting terminal components according to claim 4 for miniature circuit breaker, it is characterised in that:Connect in battery plate portion Two both sides for connecing electric intermediate plate are respectively provided with an enhancing plate portion, between being left between each enhancing plate portion and an adjacent clamp plate portion Gap.
6. the connecting terminal components according to claim 5 for miniature circuit breaker, it is characterised in that:Outside crimping plate portion Metal framework is stretched out in side, and camber curling is used as guide portion upwards.
7. the connecting terminal components according to claim 6 for miniature circuit breaker, it is characterised in that:Conducting terminal connects Battery plate portion is perpendicular to crimping plate portion.
8. the connecting terminal components according to claim 7 for miniature circuit breaker, it is characterised in that:Conducting terminal uses Copper coin is made into integration;Metal clamp spring is made of steel.
CN201711466800.2A 2017-12-28 2017-12-28 A kind of connecting terminal components for miniature circuit breaker Pending CN108010816A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711466800.2A CN108010816A (en) 2017-12-28 2017-12-28 A kind of connecting terminal components for miniature circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711466800.2A CN108010816A (en) 2017-12-28 2017-12-28 A kind of connecting terminal components for miniature circuit breaker

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CN108010816A true CN108010816A (en) 2018-05-08

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108133842A (en) * 2017-12-29 2018-06-08 卢卫征 A kind of connecting terminal components for small-sized disconnecting switch
CN109103617A (en) * 2018-08-30 2018-12-28 上海羿煜电子科技有限公司 A kind of pcb board connecting terminal
CN113524116A (en) * 2021-08-19 2021-10-22 上海康恒环境股份有限公司 Hydraulic cylinder extracting tool

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2337661Y (en) * 1998-07-06 1999-09-08 严炳元 Main circuit switch
CN201985048U (en) * 2011-03-31 2011-09-21 方妙音 Circuit breaker
CN203055814U (en) * 2013-01-09 2013-07-10 浙江天正电气股份有限公司 Wiring device of circuit breaker
CN103971956A (en) * 2013-02-06 2014-08-06 Abb股份公司 Installation switching device with connection terminal and terminal cover piece
CN104851629A (en) * 2015-04-27 2015-08-19 苏州君丰辰电子科技有限公司 Intelligent household dual-supply power switch
CN205542643U (en) * 2016-01-28 2016-08-31 浙江兰德电器有限公司 Miniature circuit breaker
CN107204261A (en) * 2017-06-27 2017-09-26 浙江美格尔电气科技有限公司 A kind of cage modle clam member termination for breaker of plastic casing
CN207977283U (en) * 2017-12-28 2018-10-16 苏州琦少工程科技有限公司 A kind of connecting terminal components for miniature circuit breaker

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2337661Y (en) * 1998-07-06 1999-09-08 严炳元 Main circuit switch
CN201985048U (en) * 2011-03-31 2011-09-21 方妙音 Circuit breaker
CN203055814U (en) * 2013-01-09 2013-07-10 浙江天正电气股份有限公司 Wiring device of circuit breaker
CN103971956A (en) * 2013-02-06 2014-08-06 Abb股份公司 Installation switching device with connection terminal and terminal cover piece
CN104851629A (en) * 2015-04-27 2015-08-19 苏州君丰辰电子科技有限公司 Intelligent household dual-supply power switch
CN205542643U (en) * 2016-01-28 2016-08-31 浙江兰德电器有限公司 Miniature circuit breaker
CN107204261A (en) * 2017-06-27 2017-09-26 浙江美格尔电气科技有限公司 A kind of cage modle clam member termination for breaker of plastic casing
CN207977283U (en) * 2017-12-28 2018-10-16 苏州琦少工程科技有限公司 A kind of connecting terminal components for miniature circuit breaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108133842A (en) * 2017-12-29 2018-06-08 卢卫征 A kind of connecting terminal components for small-sized disconnecting switch
CN109103617A (en) * 2018-08-30 2018-12-28 上海羿煜电子科技有限公司 A kind of pcb board connecting terminal
CN113524116A (en) * 2021-08-19 2021-10-22 上海康恒环境股份有限公司 Hydraulic cylinder extracting tool

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Application publication date: 20180508

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