CN101763996B - Static contact of low-voltage circuit breaker - Google Patents

Static contact of low-voltage circuit breaker Download PDF

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Publication number
CN101763996B
CN101763996B CN2009102337235A CN200910233723A CN101763996B CN 101763996 B CN101763996 B CN 101763996B CN 2009102337235 A CN2009102337235 A CN 2009102337235A CN 200910233723 A CN200910233723 A CN 200910233723A CN 101763996 B CN101763996 B CN 101763996B
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China
Prior art keywords
side wall
sidewall
fixed contact
length
static contact
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CN2009102337235A
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Chinese (zh)
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CN101763996A (en
Inventor
朱未东
江长生
陈咸
任飞
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.)
Eaton Huineng low voltage electrical appliances (Jiangsu) Co.,Ltd.
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JIANGSU HUINENG ELECTRIC CO Ltd
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Priority to CN2009102337235A priority Critical patent/CN101763996B/en
Publication of CN101763996A publication Critical patent/CN101763996A/en
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Abstract

The invention discloses a static contact structure of a low-voltage circuit breaker, comprising a static contact and a metal clamping piece, the metal clamping piece is provided with a first side wall and a second side wall which have the same extension length along the same vertical direction of two ends of a bottom wall, have reversed U shaped outline shapes and are symmetrical left and right; a first opening groove and a second opening groove which are the same and of which the length and width is less than the length and width of the first side wall and the second side wall are respectively arranged on the first side wall and the second side wall, the first side wall and the second side wall are respectively provided with a first top wall and a second top wall far away from one end of the bottom wall, wherein the first top wall and the second top wall are extended vertically along the inner cavity direction, have the same length and are parallel to the bottom wall, a third side wall and a fourth side wall which has the same extension length are extended from the first top wall and the second top wall, far away from the side wall; one end of a the static contact is arranged between the third side wall and the four side wall, a locating shaft penetrates through a torsional spring and the static contact and holes on the third side wall and the fourth side wall; the static contact structure has simple installation, the welding quantity of the static contact is reduced and the conducting performance of the circuit breaker is improved.

Description

A kind of fixed contact of low-voltage circuit breaker
Technical field
The present invention relates to a kind of low-voltage circuit breaker, relate in particular to the static contact structure of low-voltage circuit breaker conducting system.
Background technology
Being electrically connected mainly of low-pressure plastic shell circuit breaker conducting system comprises: being connected of being connected of lead-in line row and fixed contact, moving contact and thermal element and being connected of thermal element and outlet row.And wherein movable electrode and not movable electrode be the part that breaker of plastic casing is electrically connected most critical.At present, under the high situation of breaker of plastic casing breaking capacity, its fixed contact is the inverted U structure that can scold out; Adopt inlet wire mode down; Fixed contact is connected with inlet wire and all adopts the welding that is flexible coupling to realize being electrically connected between the row, and it is higher relatively to welding requirements to be flexible coupling, and weld resistance is big; Heating is big, causes circuit breaker fluctuation of service property.
Summary of the invention
What the purpose of this invention is to provide a kind of low-voltage circuit breaker need not to weld, connect reliable, advantages of small volume, easy for installation, the static contact structure that can improve breaking capacity.
The technical scheme that the present invention adopts is: comprise fixed contact and metal clip gripping member; The length that the metal clip gripping member has the same vertical direction extension along the diapire two ends is identical, appearance profile is inverted U structure and the symmetrical the first side wall and second sidewall; Be respectively equipped with length and identical first open slot and second open slot of width less than the first side wall and the second sidewall length and width on the first side wall and second sidewall, the first side wall respectively has along vertically extending, that length is identical and parallel with diapire first, second roof of interior cavity direction at the end away from diapire with second sidewall; First, second roof is away from the 3rd, the 4th identical sidewall of sidewall one end development length; One end of fixed contact places between the 3rd, the 4th sidewall, and locating shaft passes the hole on torsion spring and fixed contact and the 3rd, the 4th sidewall, and torsion spring is fixed on the metal clip gripping member.
The invention has the beneficial effects as follows:
1, in production link, install simply, reduced the welding number of fixed contact, economize on resources, improved production efficiency.
2, under the situation of breaker electrifying, the U-shaped clamp structure can produce electromagnetic attraction, and clamp structure is clamped, and has improved the electric conductivity of circuit breaker conducting system.
3, under the situation of breaker electrifying; Fixed contact can produce electrodynamic repulsion force to moving contact, and the upper end row who goes up inlet wire inverted U structure simultaneously can produce electronic suction to moving contact, compares the situation that tradition has only electrodynamic repulsion force; This structure not only has electrodynamic repulsion force; Also have electronic suction simultaneously, under the acting in conjunction of two power, accelerated the breaking speed of dynamic/static contact.
4, utilize the metal of fixed contact self to arrange and locate fixed contact, saved traditional fixed contact locating support, reduced number of parts, assemble simplyr, reduced the cost of circuit breaker simultaneously.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain.
Fig. 1 is a three-dimensional structure diagram of the present invention.
Fig. 2 is the structure chart of metal clip gripping member 1 among Fig. 1.
Fig. 3 is the structure chart of fixed contact 2 among Fig. 1.
Embodiment:
Shown in Fig. 1-3, the static contact structure of low-voltage circuit breaker is connected row 3 by metal clip gripping member 1, fixed contact 2, torsion spring 5, locating shaft 4 and forms with inlet wire.Wherein, Metal clip gripping member 1 has the identical the first side wall 12 and second sidewall 13 of length that same vertical direction is extended along diapire 11 two ends; The first side wall 12 and second sidewall, 13 left-right symmetric; On the first side wall 12 and second sidewall 13, be respectively equipped with the first measure-alike open slot 121 and second open slot 131, make first, second sidewall 12,13 appearance profiles be inverted U-shaped, and enough mechanical strengths are arranged.First, second sidewall 12,13 respectively is provided with along first, second identical roof 14,15 of the vertically extending length of interior cavity direction at the end away from diapire 11; Parallel and first, second roof 14 of first, second roof 14,15 and diapire 11, distance can be held the thickness of fixed contact 2 between 15; First, second roof 14,15 is respectively equipped with corresponding first, second round tube hole 161,171 in position away from the 3rd, the 4th identical sidewall 16,17 of each development length of sidewall one end on the 3rd, the 4th sidewall 16,17.
On fixed contact 2, be provided with and corresponding the 3rd round tube hole 211 in first, second round tube hole 161,171 positions; Locating shaft 4 passes first, second round tube hole 161,171 and the 3rd round tube hole 211 on the fixed contact 2 on the 3rd, the 4th sidewall 16,17 with both location positioning; The the 3rd, the 4th sidewall 16,17 is with clamp structure envelope fixed contact 2 on the metal clip gripping member 1, promptly an end of fixed contact 2 be clamped in the 3rd, the 4th sidewall 16, between 17.Three, the 4th sidewall 16,17 and locating shaft 4 actings in conjunction make fixed contact 2 fixed-site.The 3rd round tube hole 211 ends that have at fixed contact 2 are provided with a positive stop lug boss 212, and this positive stop lug boss 212 cooperates slewing area and the angle with restriction fixed contact 2 with the circuit breaker base.Torsion spring 5 is fixed on the 3rd, the 4th sidewall 16,17 two ends of metal clip gripping member 1, and locating shaft 4 passes torsion spring 5, and the reset force of fixed contact 2 is provided; On near the surface other end of fixed contact 2, also be enclosed with one deck working of plastics 22; This working of plastics 22 is fixedly attached on the fixed contact 2 with the riveted joint mode through the round tube hole on the fixed contact 2 221; Play protection fixed contact 2 not by the effect of arc erosion; Simultaneously under the disjunction situation, this working of plastics 22 can be produced by arc erosion to make the gas of electric arc cooling, helps extinguish arcs faster.

Claims (2)

1. the fixed contact of a low-voltage circuit breaker; Comprise fixed contact (2) and metal clip gripping member (1); It is characterized in that: the length that metal clip gripping member (1) has the same vertical direction extension along diapire (11) two ends is identical, appearance profile is inverted U structure and symmetrical the first side wall (12) and second sidewall (13); Be respectively equipped with length and identical first open slot (121) and second open slot (131) of width less than the first side wall (12) and second sidewall (13) length and width on the first side wall (12) and second sidewall (13), the first side wall (12) respectively has along vertically extending, that length is identical and parallel with diapire (11) first, second roof (14,15) of interior cavity direction at the end away from diapire (11) with second sidewall (13); First, second roof (14,15) is away from identical the 3rd, the 4th sidewall (16,17) of sidewall one end development length; One end of fixed contact (2) places between the 3rd, the 4th sidewall (16,17); Locating shaft (4) passes corresponding first, second round tube hole (161,171) in position that is respectively equipped with on torsion spring (5) and fixed contact (2) and the 3rd, the 4th sidewall (16,17), and torsion spring (5) is fixed on the metal clip gripping member (1).
2. the fixed contact of a kind of low-voltage circuit breaker according to claim 1 is characterized in that: have a positive stop lug boss (212) on the end of fixed contact (2) and have and first, second round tube hole (161,171) corresponding the 3rd round tube holes in position (211); Near parcel one deck working of plastics (22) in the surface other end of fixed contact (2).
CN2009102337235A 2009-10-23 2009-10-23 Static contact of low-voltage circuit breaker Active CN101763996B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009102337235A CN101763996B (en) 2009-10-23 2009-10-23 Static contact of low-voltage circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009102337235A CN101763996B (en) 2009-10-23 2009-10-23 Static contact of low-voltage circuit breaker

Publications (2)

Publication Number Publication Date
CN101763996A CN101763996A (en) 2010-06-30
CN101763996B true CN101763996B (en) 2012-06-13

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101882547B (en) * 2010-07-08 2012-06-13 江苏辉能电气有限公司 Static contact structure of low-voltage circuit breaker
CN102074405A (en) * 2010-12-08 2011-05-25 西安交通大学 Rotary load switch contact arc extinguishing system of SF6 ring main unit

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Owner name: ZHENJIANG POWER SUPPLY COMPANY, JIANGSU PROV. POWE

Effective date: 20140821

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Effective date of registration: 20140821

Address after: 212132 mechanical and Electrical Industrial Park, Dagang East Road, Dagang New District, Zhenjiang, Jiangsu, Zhenjiang A5

Patentee after: Jiangsu Phono Electric Co.,Ltd.

Patentee after: JIANGSU ZHENJIANG ELECTRIC POWER SUPPLY Corp.

Address before: 212132 mechanical and Electrical Industrial Park, Dagang East Road, Dagang New District, Zhenjiang, Jiangsu, Zhenjiang A5

Patentee before: Jiangsu Phono Electric Co.,Ltd.

CP01 Change in the name or title of a patent holder

Address after: 212132 mechanical and Electrical Industrial Park, Dagang East Road, Dagang New District, Zhenjiang, Jiangsu, Zhenjiang A5

Patentee after: Jiangsu Phono Electric Co.,Ltd.

Patentee after: ZHENJIANG POWER SUPPLY COMPANY, STATE GRID JIANGSU ELECTRIC POWER Co.

Address before: 212132 mechanical and Electrical Industrial Park, Dagang East Road, Dagang New District, Zhenjiang, Jiangsu, Zhenjiang A5

Patentee before: Jiangsu Phono Electric Co.,Ltd.

Patentee before: JIANGSU ZHENJIANG ELECTRIC POWER SUPPLY Corp.

Address after: 212132 mechanical and Electrical Industrial Park, Dagang East Road, Dagang New District, Zhenjiang, Jiangsu, Zhenjiang A5

Patentee after: Jiangsu Phono Electric Co.,Ltd.

Patentee after: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. ZHENJIANG POWER SUPPLY BRANCH

Address before: 212132 mechanical and Electrical Industrial Park, Dagang East Road, Dagang New District, Zhenjiang, Jiangsu, Zhenjiang A5

Patentee before: Jiangsu Phono Electric Co.,Ltd.

Patentee before: ZHENJIANG POWER SUPPLY COMPANY, STATE GRID JIANGSU ELECTRIC POWER Co.

CP01 Change in the name or title of a patent holder
TR01 Transfer of patent right

Effective date of registration: 20220224

Address after: 212132 mechanical and Electrical Industrial Park, Dagang East Road, Dagang New District, Zhenjiang, Jiangsu, Zhenjiang A5

Patentee after: Jiangsu Phono Electric Co.,Ltd.

Address before: 212132 mechanical and Electrical Industrial Park, Dagang East Road, Dagang New District, Zhenjiang, Jiangsu, Zhenjiang A5

Patentee before: Jiangsu Phono Electric Co.,Ltd.

Patentee before: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. ZHENJIANG POWER SUPPLY BRANCH

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20220512

Address after: 212132 No. 97, Wufengshan Road, Dagang, New District, Zhenjiang City, Jiangsu Province

Patentee after: Huineng low voltage electric appliance (Jiangsu) Co.,Ltd.

Address before: 212132 mechanical and Electrical Industrial Park, Dagang East Road, Dagang New District, Zhenjiang, Jiangsu, Zhenjiang A5

Patentee before: Jiangsu Phono Electric Co.,Ltd.

TR01 Transfer of patent right
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 212132 No. 97, Wufengshan Road, Dagang, New District, Zhenjiang City, Jiangsu Province

Patentee after: Eaton Huineng low voltage electrical appliances (Jiangsu) Co.,Ltd.

Address before: 212132 No. 97, Wufengshan Road, Dagang, New District, Zhenjiang City, Jiangsu Province

Patentee before: Huineng low voltage electric appliance (Jiangsu) Co.,Ltd.