CN205789817U - A kind of breaker of plastic casing - Google Patents

A kind of breaker of plastic casing Download PDF

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Publication number
CN205789817U
CN205789817U CN201620682303.0U CN201620682303U CN205789817U CN 205789817 U CN205789817 U CN 205789817U CN 201620682303 U CN201620682303 U CN 201620682303U CN 205789817 U CN205789817 U CN 205789817U
Authority
CN
China
Prior art keywords
armature
electrical apparatus
protection
support
fishplate bar
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.)
Active
Application number
CN201620682303.0U
Other languages
Chinese (zh)
Inventor
俞正存
陈其国
陈建景
徐妙风
姬薇
鲍华晖
邵文晋
侯浩生
陈巍
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.)
Yueqing Electric Power Industrial Co Ltd
Zhejiang Dandt Technology Co Ltd
Original Assignee
Yueqing Electric Power Industrial Co Ltd
Zhejiang Dandt Technology 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 Electric Power Industrial Co Ltd, Zhejiang Dandt Technology Co Ltd filed Critical Yueqing Electric Power Industrial Co Ltd
Priority to CN201620682303.0U priority Critical patent/CN205789817U/en
Application granted granted Critical
Publication of CN205789817U publication Critical patent/CN205789817U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

This utility model relates to a kind of breaker of plastic casing, including pedestal, upper cover, electronic control module, electrical apparatus release, operating mechanism, contact system, conducting system, back-up protection tripping device, back-up protection tripping device includes the draw bar being arranged on operating mechanism, four the back-up protection electrical apparatus releases being provided with in pedestal at corresponding draw bar, and four back-up protection electrical apparatus releases A of being connected to conducting system is connected fishplate bar, B is connected fishplate bar, C is connected fishplate bar, on zero line connecting plate, back-up protection electrical apparatus release includes the ferrum core being fixed in pedestal, support, armature, the bearing pin being arranged in armature, the torsion spring being sleeved on bearing pin, the lower end of support is fixed on the both sides of iron core, the upper end of support is movably connected on the both sides of armature, the top of armature is provided with a hook, this hook is conflicted on draw bar.This utility model has the advantage that compact conformation, volume are little, stable and reliable for performance.

Description

A kind of breaker of plastic casing
Technical field
This utility model relates to breaker technical field, is specifically related to a kind of breaker of plastic casing.
Background technology
Breaker of plastic casing is widely used in the departments such as industrial or agricultural, traffic, mine, civil buildings and national defence, the biography to electric power Defeated and distribution, the protection of motor cut much ice, and are that in low-voltage electrical apparatus, usage amount is big, use wide product.Mould shell open circuit Device is to close, carry and cut-off the electric current under normal loop condition, and can close, carry and cut-off within the time of regulation The switching device of the electric current under abnormal loop condition (including short circuit condition).Breaker of plastic casing can be used to distribute electric energy, infrequently Ground start asynchronous motor, to power circuit and motor etc. carry out protection, when they occur serious overloads or short circuit and Can automatic shutdown circuit during the fault such as under-voltage.At present, breaker of plastic casing adds back-up protection electrical apparatus release, when circuit has spy When big short circuit current passes through, back-up protection electrical apparatus release can realize the quick disjunction of breaker of plastic casing, thus effectively carry out circuit Protection.The structure design of existing electromagnetic type back-up protection electrical apparatus release is unreasonable, thus causes this breaker of plastic casing to there is volume Greatly, the defect of unstable properties.
Summary of the invention
The purpose of this utility model is to overcome the defect of prior art, it is provided that a kind of compact conformation, volume is little, performance is steady Fixed reliable breaker of plastic casing.
For achieving the above object, this utility model uses a kind of breaker of plastic casing, including pedestal, upper cover, Electronic Control mould Block, electrical apparatus release, operating mechanism, contact system, conducting system, back-up protection tripping device, described back-up protection tripping device Including four the back-up protection electrical apparatus releases being provided with in pedestal at the draw bar being arranged on operating mechanism, corresponding draw bar, The basic configuration of four described back-up protection electrical apparatus releases is square frame shape, and four back-up protection electrical apparatus releases are connected to conduction The A of system be connected fishplate bar, the C of fishplate bar, B that be connected is connected on fishplate bar, zero line connecting plate, and described back-up protection electrical apparatus release includes fixing Iron core in pedestal, support, armature, the bearing pin being arranged in armature, the torsion spring that is sleeved on bearing pin, under described support End is fixed on the both sides of iron core, and the upper end of support is movably connected on the both sides of armature, and one end of described torsion spring is installed on On armature, the other end of torsion spring is installed on the side of support, and the top of described armature is provided with a hook, this hook Body is conflicted on draw bar.
The beneficial effects of the utility model are: it is little, stable and reliable for performance that this breaker of plastic casing has compact conformation, volume A in advantage, and conducting system be connected fishplate bar, the C of fishplate bar, B that be connected is connected on fishplate bar, zero line connecting plate and is provided with a standby Protect electrical apparatus release, and the structure of back-up protection electrical apparatus release is square frame shape, thus this back-up protection electrical apparatus release occupying in pedestal Small volume;When be connected fishplate bar, the C of fishplate bar, B that be connected of the A on conducting system is connected on fishplate bar, zero line connecting plate and has the biggest short circuit When electric current passes through, can produce an electromagnetic field, armature is attracted with iron core, and armature rotates around bearing pin, and the hook on armature pushes away Dynamic draw bar action so that the operating mechanism of breaker of plastic casing is threaded off, it is achieved the quick disjunction of breaker of plastic casing, thus effectively Carry out route protection.
Accompanying drawing explanation
Fig. 1 is this utility model example structure figure.
Fig. 2 is the axonometric chart of this utility model back-up protection tripping device.
Fig. 3 is the front view of this utility model back-up protection tripping device.
Fig. 4 is the axonometric chart of this utility model back-up protection electrical apparatus release.
Detailed description of the invention
As shown in Figure 1,2,3, 4, this utility model embodiment is a kind of breaker of plastic casing, including pedestal 10, upper cover 11, electricity Sub-control module, electrical apparatus release, operating mechanism 20, contact system, conducting system, back-up protection tripping device, described standby is protected Protect trip gear to include being provided with four in pedestal 10 at the draw bar 21 being arranged on operating mechanism 20, corresponding draw bar 21 Individual back-up protection electrical apparatus release 30, the basic configuration of four described back-up protection electrical apparatus releases 30 is square frame shape, and four standby are protected Protect electrical apparatus release 30 to be connected to the A of conducting system be connected fishplate bar 41, the C of fishplate bar 40, B that be connected and be connected fishplate bar 42, zero line connecting plate On 43, described back-up protection electrical apparatus release 30 includes the iron core 31 being fixed in pedestal 10, support 32, armature 33, is arranged on rank Bearing pin 34 in ferrum 33, the torsion spring 35 being sleeved on bearing pin 34, the lower end of described support 32 is fixed on the both sides of iron core 31, The upper end of support 32 is movably connected on the both sides of armature 33, and one end of described torsion spring 35 is installed on armature 33, torsion spring 35 The other end be installed on the side of support 32, the top of described armature 33 is provided with a hook 331, this hook 331 conflict on draw bar 21.This breaker of plastic casing has the advantage that compact conformation, volume are little, stable and reliable for performance, and conduction A in system be connected fishplate bar, the C of fishplate bar, B that be connected is connected on fishplate bar, zero line connecting plate and is provided with a back-up protection electrical apparatus release, And the structure of back-up protection electrical apparatus release is square frame shape, thus this back-up protection electrical apparatus release occupies small volume in pedestal;When A on conducting system be connected fishplate bar, the C of fishplate bar, B that be connected is connected on fishplate bar, zero line connecting plate when having the biggest short circuit current to pass through, Can produce an electromagnetic field, armature is attracted with iron core, and armature rotates around bearing pin, and the hook on armature promotes draw bar to move Make so that the operating mechanism of breaker of plastic casing is threaded off, it is achieved the quick disjunction of breaker of plastic casing, thus effectively carries out circuit guarantor Protect.

Claims (1)

1. a breaker of plastic casing, including pedestal, upper cover, electronic control module, electrical apparatus release, operating mechanism, contact system, conduction System, back-up protection tripping device, it is characterised in that: described back-up protection tripping device includes being arranged on operating mechanism Four the back-up protection electrical apparatus releases being provided with in pedestal at draw bar, corresponding draw bar, four described back-up protections are threaded off The basic configuration of device is square frame shape, and be connected fishplate bar, B of four back-up protection electrical apparatus releases A of being connected to conducting system is connected Fishplate bar, C are connected on fishplate bar, zero line connecting plate, iron core that described back-up protection electrical apparatus release includes being fixed in pedestal, support, Armature, the bearing pin being arranged in armature, the torsion spring that is sleeved on bearing pin, the lower end of described support is fixed on the both sides of iron core On, the upper end of support is movably connected on the both sides of armature, and one end of described torsion spring is installed on armature, the other end of torsion spring Being installed on the side of support, the top of described armature is provided with a hook, and this hook is conflicted on draw bar.
CN201620682303.0U 2016-06-19 2016-06-19 A kind of breaker of plastic casing Active CN205789817U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620682303.0U CN205789817U (en) 2016-06-19 2016-06-19 A kind of breaker of plastic casing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620682303.0U CN205789817U (en) 2016-06-19 2016-06-19 A kind of breaker of plastic casing

Publications (1)

Publication Number Publication Date
CN205789817U true CN205789817U (en) 2016-12-07

Family

ID=58125715

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620682303.0U Active CN205789817U (en) 2016-06-19 2016-06-19 A kind of breaker of plastic casing

Country Status (1)

Country Link
CN (1) CN205789817U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108511290A (en) * 2018-05-31 2018-09-07 海格科技股份有限公司 The tripping mechanism of miniature circuit breaker
CN115148556A (en) * 2022-09-01 2022-10-04 浙江正泰电器股份有限公司 Integrated protection module and circuit breaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108511290A (en) * 2018-05-31 2018-09-07 海格科技股份有限公司 The tripping mechanism of miniature circuit breaker
CN115148556A (en) * 2022-09-01 2022-10-04 浙江正泰电器股份有限公司 Integrated protection module and circuit breaker
CN115148556B (en) * 2022-09-01 2024-01-23 浙江正泰电器股份有限公司 Integrated protection module and circuit breaker

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