CN102779698B - For the electromagnetic release mechanism of low-voltage circuit breaker - Google Patents

For the electromagnetic release mechanism of low-voltage circuit breaker Download PDF

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Publication number
CN102779698B
CN102779698B CN201210245292.6A CN201210245292A CN102779698B CN 102779698 B CN102779698 B CN 102779698B CN 201210245292 A CN201210245292 A CN 201210245292A CN 102779698 B CN102779698 B CN 102779698B
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CN
China
Prior art keywords
support
armature
hooking
circuit breaker
hooked
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Expired - Fee Related
Application number
CN201210245292.6A
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Chinese (zh)
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CN102779698A (en
Inventor
刘开成
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Anhui Kaicheng Electrical Appliance Co. Ltd.
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Chuzhou Pinzhida Electrical Technology Co Ltd
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Priority to CN201210245292.6A priority Critical patent/CN102779698B/en
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Publication of CN102779698B publication Critical patent/CN102779698B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a kind of electromagnetic release mechanism for low-voltage circuit breaker, comprise support, rotate and armature is on the bracket set, is placed in yoke between support and armature, for the bearing pin providing the back-moving spring of reseting elasticity for armature and be arranged on support; Described support comprises two side and the connecting wall being connected two side, each sidewall is equipped with a pivotable groove; Described armature comprises actuation plate, two pivot boss of giving prominence to from edge, the actuation plate left and right sides and the release link being positioned at actuation plate top; Each pivot boss of described armature is arranged in the corresponding pivotable groove on rack side wall; Described back-moving spring is a torsion spring being set on this bearing pin, and one end of described torsion spring is hooked on armature, and the other end is relative with support to be fixedly installed.Advantage of the present invention is compact conformation, and Interruption is more reliable and more stable.

Description

For the electromagnetic release mechanism of low-voltage circuit breaker
Technical field
The invention belongs to breaker technical field, be specifically related to a kind of electromagnetic release mechanism for low-voltage circuit breaker.
Background technology
Circuit breaker, as the overload in low-voltage distribution system and motor protection loop, short circuit, under voltage protection electrical equipment, is apply extremely wide product.The structure of circuit breaker is generally made up of contact system, arc-control device, operating mechanism, trip gear, plastic casing and optional accessory.Contact system comprises the dynamic/static contact being connected on and arranging in pairs in circuit, when circuit breaker place circuit transship, short circuit, the fault such as under voltage time, open dynamic/static contact at the appointed time, line disconnection, protection circuit and power-supply device are not damaged; Arc-control device is for extinguishing the electric arc produced when dynamic/static contact is opened; Trip gear comprises thermal release device, electromagnetic release mechanism, undervoltage tripping mechanism; When circuit is short-circuited, short circuit current flows through trip gear, and the action of magnetic tripping mechanism, makes operating mechanism thread off, circuit breaker trip, realizes the protection to circuit breaker place circuit and load.
Magnetic tripping mechanism comprises armature, yoke, spring, support, existing armature is usually by both sides bending, through hole is offered symmetrically at two bending parts, top is provided with the brake bar upwards extended, support both sides symmetry offers through hole, support both sides are simultaneously by armature two bending part envelope, and through hole on armature two bending part is all corresponding with the through hole on support both sides, being convenient to bolster respectively by the through hole that the through hole that support both sides are offered and armature bending part are offered joins compatible with support for armature, armature can be bearing on support rotatably around bolster.In the electromagnetic release mechanism of this structure, armature both sides need bending, it also need offer through hole, are not easy to the processes of armature; Because the through hole on support both sides will correspondingly with the through hole on armature two bending part pass to hold bolster, be unfavorable for saving part, both assemblings are loaded down with trivial details, time-consuming, the whole electromagnetic release mechanism of this structural requirement will complete the assembling of armature and support before loading pedestal simultaneously, otherwise can bring obstruction to the installation of other devices as bimetallic element, operating mechanism etc.; When circuit is short-circuited, armature rotates, its brake bar hits the draw bar in pneumatic operating mechanism, and armature position is corresponding with draw bar, namely, define the position of electromagnetic release mechanism in whole circuit breaker, therefore the position of armature, shape, size can have an impact to the shape of circuit breaker miscellaneous part, size and mounting means, thus, the volume of whole circuit breaker will be had influence on, be difficult to realize the densification assembling of circuit breaker internal element and the miniaturization of circuit breaker itself.
Summary of the invention
The object of this invention is to provide the electromagnetic release mechanism for low-voltage circuit breaker that a kind of compact conformation, Interruption are more reliable and more stable.
The technical scheme realizing the object of the invention is: a kind of electromagnetic release mechanism for low-voltage circuit breaker, comprises support, rotates and arrange armature on the bracket, be placed in yoke between support and armature and for providing the back-moving spring of reseting elasticity for armature; Described support comprises two side and the connecting wall being connected two side, each sidewall is equipped with a pivotable groove; Described armature comprises actuation plate, two pivot boss of giving prominence to from edge, the actuation plate left and right sides and the release link being positioned at actuation plate top; Each pivot boss of described armature is arranged in the corresponding pivotable groove on rack side wall; Its architectural feature is: also comprise a bearing pin be arranged on support; Described back-moving spring is a torsion spring being set on this bearing pin, and one end of described torsion spring is hooked on armature, and the other end is relative with support to be fixedly installed.
In technique scheme, described support two side is respectively provided with an axis hole, described bearing pin is through this two axis hole.
In technique scheme, one end of described torsion spring is hooked in armature release link, and the other end is hooked on support.
In technique scheme, also comprise a hooking regulating part arranged with rack side wall geo-stationary; Described hooking regulating part is provided with multiple hooking groove, and one end of described torsion spring is hooked in armature release link, and the other end to be hooked on this hooking regulating part in a corresponding hooking groove.
In technique scheme, described hooking regulating part is also provided with a trepanning and a positioning boss, described sidewall is provided with the location hole matched with this positioning boss; Described hooking regulating part is set on described bearing pin by its trepanning, and its positioning boss is embedded in described location hole.
In technique scheme, described release link is provided with multiple hooking breach, and one end of described torsion spring is hooked in release link in a corresponding hooking breach, and the other end is hooked on support.
In technique scheme, described support is provided with multiple hooking hole, and one end of described torsion spring is hooked in release link, and the other end to be hooked on support in a corresponding hooking hole.
The present invention has positive effect: (1) the present invention adopts torsion spring as the back-moving spring providing reseting elasticity for armature, and it is comparatively compact that this kind of structure has structure, the advantage that Interruption is comparatively reliable and stable.
(2) the present invention by arranging hooking regulating part on bearing pin, thus make the elastic force of torsion spring be easy to regulate, and can meet the different low-voltage circuit breaker required of threading off and use, have the advantage that applicability is wider.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the first structure of the present invention;
Fig. 2 be electromagnetic release mechanism shown in Fig. 1 from a kind of perspective view during another angle views;
Fig. 3 is a kind of perspective view of electromagnetic release mechanism shown in Fig. 1 after removing support and yoke;
Fig. 4 is a kind of explosive view of electromagnetic release mechanism shown in Fig. 3;
Fig. 5 is a kind of perspective view of the second structure of the present invention;
Fig. 6 is a kind of perspective view of the third structure of the present invention;
Fig. 7 is a kind of perspective view of the present invention's the 4th kind of structure.
Mark shown in accompanying drawing: support 1, sidewall 11, connecting wall 12, pivotable groove 13, axis hole 14, location hole 15, hooking hole 16, convex shape breach 17, armature 2, actuation plate 21, pivot boss 22, release link 23, hooking breach 231, positive stop lug boss 24, yoke 3, back-moving spring 4, bearing pin 5, hooking regulating part 6, hooking groove 61, trepanning 62, positioning boss 63.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 4 shows a kind of embodiment of the present invention, and wherein Fig. 1 is a kind of perspective view of the first structure of the present invention; Fig. 2 be electromagnetic release mechanism shown in Fig. 1 from a kind of perspective view during another angle views; Fig. 3 is a kind of perspective view of electromagnetic release mechanism shown in Fig. 1 after removing support and yoke; Fig. 4 is a kind of explosive view of electromagnetic release mechanism shown in Fig. 3.
The present embodiment is a kind of electromagnetic release mechanism for low-pressure plastic shell circuit breaker, see shown in Fig. 1 to Fig. 4, comprise support 1, rotate and be arranged on armature 2 on described support 1, be placed in yoke 3 between support 1 and armature 2, for providing the back-moving spring 4 of reseting elasticity for armature 2, be arranged on bearing pin 5 on support 1 and a hooking regulating part 6 arranged with support 1 sidewall 11 geo-stationary; Described support 1 comprises two side 11 and the connecting wall 12 being connected two side 11, each sidewall 11 is equipped with a pivotable groove 13; Described armature 2 comprises actuation plate 21, two pivot boss 22 of giving prominence to from edge, actuation plate 21 left and right sides and the release link 23 being positioned at actuation plate 21 top; Each pivot boss 22 of described armature 2 is arranged in the corresponding pivotable groove 13 on support 1 sidewall 11;
Described support 1 two side 11 is respectively provided with an axis hole 14, and described bearing pin 5 is through this two axis hole 14.
Described hooking regulating part 6 is provided with trepanning 62, positioning boss 63 and multiple hooking groove 61, and described sidewall 11 is provided with the location hole 15 matched with this positioning boss 63; Described hooking regulating part 6 is set on described bearing pin 5 by its trepanning, and its positioning boss 63 is embedded in described location hole 15, thus hooking regulating part 6 and support 1 geo-stationary are arranged.
One end of described torsion spring is hooked in armature 2 release link 23, and the other end to be hooked on this hooking regulating part 6 in a corresponding hooking groove 61; By being hooked on different hooking grooves 61, the reseting elasticity of adjustment spring, thus regulate the electromagnetic force needed for threading off, also namely make the present embodiment can be used in the low-voltage circuit breaker of multiple different Interruption requirement.
The present embodiment is also provided with a convex shape breach 17 on sidewall, described armature 2 is also provided with positive stop lug boss 24 below pivot boss 22, this positive stop lug boss 24 is arranged in described convex shape breach 17 and can moves back and forth at breach, so this convex shape breach 17 has the function of spacing armature 2 anglec of rotation.
The present embodiment has positive effect: (1) the present embodiment adopts torsion spring as the back-moving spring providing reseting elasticity for armature, and it is comparatively compact that this kind of structure has structure, the advantage that Interruption is comparatively reliable and stable.
(2) the present embodiment by arranging hooking regulating part on bearing pin, thus make the elastic force of torsion spring be easy to regulate, and can meet the different low-voltage circuit breaker required of threading off and use, have the advantage that applicability is wider.
(embodiment 2)
Fig. 5 is a kind of perspective view of the second structure of the present invention, shows the second embodiment of the present invention.
The present embodiment is substantially the same manner as Example 1, and difference is: described release link 23 is provided with multiple hooking breach 231, and one end of described torsion spring is hooked in release link 23 in a corresponding hooking breach 231, and the other end is hooked on support 1.
The present embodiment also by regulating the hooking position of torsion spring, adjusts the reseting elasticity of spring, and then the electromagnetic force needed for adjustment dropout.
(embodiment 3)
Fig. 6 is a kind of perspective view of the third structure of the present invention, shows the third embodiment of the present invention.
The present embodiment is substantially the same manner as Example 1, and difference is: the present embodiment no longer arranges hooking regulating part, but on rack side wall 11, directly arrange a hooking hole 16, and the other end of described torsion spring is directly hooked in this hooking hole 16.
The present embodiment structure comparatively simplifies, and owing to eliminating hooking regulating part, assembly manipulation is comparatively simplified, and cost is also minimized.
(embodiment 4)
Fig. 7 is a kind of perspective view of the present invention's the 4th kind of structure, shows the 4th kind of embodiment of the present invention.
The present embodiment is substantially the same manner as Example 3, difference is: the present embodiment is provided with multiple hooking hole 16 on rack side wall 11, by the other end of torsion spring being hooked in different hooking holes 16, the reseting elasticity of adjustment spring, and then the electromagnetic force needed for adjustment dropout.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.

Claims (1)

1., for an electromagnetic release mechanism for low-voltage circuit breaker, comprise support (1), rotate and be arranged on armature (2) on described support (1), be placed in yoke (3) between support (1) and armature (2) and for providing the back-moving spring (4) of reseting elasticity for armature (2); Described support (1) comprises two side (11) and the connecting wall (12) being connected two side (11), each sidewall (11) is equipped with a pivotable groove (13); Described armature (2) comprises actuation plate (21), two pivot boss (22) outstanding from actuation plate (21) edge, the left and right sides and be positioned at the release link (23) at actuation plate (21) top; Each pivot boss (22) of described armature (2) is arranged in the corresponding pivotable groove (13) on support (1) sidewall (11); It is characterized in that: also comprise one and be arranged on bearing pin (5) on support (1) and a hooking regulating part (6) arranged with support (1) sidewall (11) geo-stationary; Described back-moving spring is a torsion spring being set on this bearing pin (5), and one end of described torsion spring is hooked on armature (2), and the other end is relative with support (1) to be fixedly installed; Described support (1) two side (11) is respectively provided with an axis hole (14), described bearing pin (5) is through this two axis hole (14); Described hooking regulating part (6) is provided with multiple hooking groove (61), the part plate body at actuation plate (21) top first towards close to connecting wall (12) direction bending extends, upwards bending extends to form L shape again, this upwards bending extend part plate body as release link (23), the shape of described release link is rectilinear plate; Described release link (23) is away from one end of connecting wall being provided with multiple hooking breach (231), one end of described torsion spring is hooked in the upper corresponding hooking breach (231) of release link (23), and the other end is hooked on support (1).
CN201210245292.6A 2012-07-16 2012-07-16 For the electromagnetic release mechanism of low-voltage circuit breaker Expired - Fee Related CN102779698B (en)

Priority Applications (1)

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CN201210245292.6A CN102779698B (en) 2012-07-16 2012-07-16 For the electromagnetic release mechanism of low-voltage circuit breaker

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Application Number Priority Date Filing Date Title
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CN102779698B true CN102779698B (en) 2015-09-23

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104465249B (en) 2013-09-24 2016-08-10 上海电科电器科技有限公司 Adjustable electric magnetic release
CL2014001810A1 (en) * 2014-07-08 2016-05-27 Asesorías Y Servicios Innovaxxion Spa Hanger bar for anodes without ears

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6225882B1 (en) * 1999-08-27 2001-05-01 Eaton Corporation Circuit interrupter with an improved magnetically-induced automatic trip assembly
CN201514909U (en) * 2009-10-23 2010-06-23 江苏辉能电气有限公司 Electromagnetic tripping mechanism of low-voltage circuit breaker
CN201689850U (en) * 2010-05-20 2010-12-29 嘉灵开关制造(中山)有限公司 Hydraulic electromagnetic circuit breaker with accurate adjustment function
CN202076201U (en) * 2011-05-18 2011-12-14 常熟开关制造有限公司(原常熟开关厂) Electromagnetic tripping mechanism of circuit breaker
CN202678258U (en) * 2012-07-16 2013-01-16 刘开成 Electromagnetic tripping mechanism for low-voltage circuit breaker

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6225882B1 (en) * 1999-08-27 2001-05-01 Eaton Corporation Circuit interrupter with an improved magnetically-induced automatic trip assembly
CN201514909U (en) * 2009-10-23 2010-06-23 江苏辉能电气有限公司 Electromagnetic tripping mechanism of low-voltage circuit breaker
CN201689850U (en) * 2010-05-20 2010-12-29 嘉灵开关制造(中山)有限公司 Hydraulic electromagnetic circuit breaker with accurate adjustment function
CN202076201U (en) * 2011-05-18 2011-12-14 常熟开关制造有限公司(原常熟开关厂) Electromagnetic tripping mechanism of circuit breaker
CN202678258U (en) * 2012-07-16 2013-01-16 刘开成 Electromagnetic tripping mechanism for low-voltage circuit breaker

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Owner name: CHUZHOU PINZHIDA ELECTRIC APPLIANCE TECHNOLOGY CO.

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Effective date: 20130719

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Effective date of registration: 20130719

Address after: Workshop 555, 12 Garden East Road, Chuzhou

Applicant after: Chuzhou Pinzhida Electric Appliance Technology Co., Ltd.

Address before: 325600 No. twenty, No. 231, weft Road, Zhejiang, Yueqing

Applicant before: Liu Kaicheng

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Effective date of registration: 20190311

Address after: 239000 Suchu Modern Industrial Park, Chuzhou City, Anhui Province

Patentee after: Anhui Kaicheng Electrical Appliance Co. Ltd.

Address before: 239000 No. 12, No. 555 Huayuan East Road, Chuzhou, Anhui.

Patentee before: Chuzhou Pinzhida Electric Appliance Technology Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150923

Termination date: 20200716

CF01 Termination of patent right due to non-payment of annual fee