CN101685727B - Quick releasing device for miniaturized circuit breaker - Google Patents
Quick releasing device for miniaturized circuit breaker Download PDFInfo
- Publication number
- CN101685727B CN101685727B CN 200910026685 CN200910026685A CN101685727B CN 101685727 B CN101685727 B CN 101685727B CN 200910026685 CN200910026685 CN 200910026685 CN 200910026685 A CN200910026685 A CN 200910026685A CN 101685727 B CN101685727 B CN 101685727B
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- Prior art keywords
- air pressure
- housing
- pressure induction
- rotational structure
- circuit breaker
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- 230000006698 induction Effects 0.000 claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 230000005405 multipole Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The invention discloses a quick releasing device for a miniaturized circuit breaker, which comprises a shell formed by folding an upper cover and a lower cover. One end of a rotation structure is arranged in the shell, and the other end of the rotation structure extends out of the shell and is provided with an actuating end; an airflow passage is formed on the lateral surface of the shell; and an air pressure induction element is fixed on the rotation structure positioned in the shell and extends into the passage. One arc surface which is in rotating fit with the air pressure induction element is arranged at the airflow passage close to the outside of the air pressure induction element, and the circle centre of the arc surface is the axis centre of the rotation structure; and the other arc surface matched with the rotation structure is arranged at the airflow passage close to the inside of the air pressure induction element. The device has modularization design, is arranged between two neighboring modules, and can disconnect the low-voltage circuit breaker early, reduce the disconnection time and improve the disconnection capability without affecting the interchangeability of the contact modules; and the device has the advantages of simple structure, reliable operation and convenient manufacture and assembly.
Description
Technical field
The present invention relates to a utmost point or multipolar low-voltage circuit breaker, be specifically related to a kind of modularization low-voltage circuit breaker with rapid-releasing function.
Background technology
The electromagnetic tripping apparatus of action and dress were received base, the base and cover of first three items when existing low-voltage circuit breaker comprised a utmost point or the multipole contact device of setting, the operating mechanism of realizing on/off switch, overload (or short circuit).When circuit breaker received big current overload, the contact head in the contact apparatus received electrodynamic effect, and both repel; Reach metering function; And then the action of the electromagnet portion in the electromagnetic tripping apparatus is hit fast, makes the circuit breaker disjunction, reaches the effect of protection circuit and equipment.Multipole every impact that all might receive short circuit current in extremely.So require every utmost point can both reach the effect of current limliting and the quick disjunction of electromagnetism.But the contact head phase repulsive interaction current limliting and the action of the electromagnet portion in the electromagnetic tripping apparatus of being abutted against in the system of touching reach disjunction, and operate time is long, and the short circuit breaking protective capability of circuit breaker is reached capacity, and it is very difficult to improve the disjunction class.Therefore, the principle that the beginning widespread usage guides short circuit air flow to promote trip gear in the industry at present improves the breaking speed of circuit breaker, to reach better current limitation effect and the breaking capacity that improves circuit breaker.But the miniaturization of circuit breaker is a trend, and often volume is bigger for existing air pressure trip gear, can't be applied to the littler circuit breaker of volume, the less circuit breaker of shell frame electric current especially, even perhaps can use, its protection effect also can be affected.When being applied to multipole circuit breaker, the interchangeability that can't realize each phase module that has, the electric body conducting of each facies tract of the appearance that has phenomenon.
Summary of the invention
The problem that the present invention will solve is to obtain a kind of quick-tripping device that can be loaded in the miniaturization circuit breaker, and this device self approaches little and has protective value.
The present invention adopts technical scheme to be: comprise the housing that is involuted by loam cake and lower cover; Rotational structure one end is installed in the housing; The rotational structure other end stretches out housing and has an actuation ends; Side at housing is provided with gas channel, presses induction pieces to stretch into passage being positioned on the rotational structure of housing fixed air.
Have the arcwall face that is rotatably assorted with the air pressure induction pieces at gas channel place, and the center of circle of arcwall face is the axle center of rotational structure near the air pressure induction pieces outside; Having another arcwall face at the gas channel place near air pressure induction pieces inboard cooperates with rotational structure.
Loam cake and lower cover side at housing are respectively equipped with two gas channels of configuration that axially stagger; Have the air pressure induction pieces of two configurations of axially staggering to correspond respectively to two gas channels, between two gas channels, having together perhaps, the multiple tracks divider wall is installed on the housing.
The invention has the beneficial effects as follows:
1, air pressure induction pieces of the present invention is accepted from the pressure gas stream of crossing that the gas flow passage openings of contact apparatus side is overflowed rotational structure to be rotated; Stretch out the actuation ends of housing simultaneously and hit snap close fast, produce tripping operation, because the generation of this power power that action produces early than the electromagnet portion in the electromagnetic tripping apparatus; Reduced intermediate link; So can make low-voltage circuit breaker disjunction early, reduce break-time, the circuit breaker breaking capacity is improved greatly.
2, the present invention is modularized design, is installed between two adjacent blocks, when being applied to single-pole circuit breaker, is installed on the module side, also can be applicable to the breaker of plastic casing of big shell frame, and the while is the structure of influencing contactor module, the not interchangeability of influencing contactor module not.
3, the present invention is simple in structure, and is reliable, manufacturing and easy to assembly.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain.
Fig. 1 is an internal structure front view of the present invention;
Fig. 2 is the cutaway view Amplified image of Fig. 1 in the A-A position.
Among the figure: 101 loam cakes; 102. lower cover; 103. gas channel; 104. arcwall face; 105 arcwall faces; 106. divider wall; 110. rotational structure; 111. actuation ends; 112. air pressure induction pieces; 130. housing; 140. flexible member rod like parts.
Embodiment
Shown in Fig. 1-2, housing 130 is involuted by loam cake 101 and lower cover 102, and an end of rotational structure 110 is installed in the housing 130, and housing 130 is fixing with rotational structure 110, and rotational structure 110 can be rotated within the specific limits.The other end of rotational structure 110 stretches out outside the housing 130, and an actuation ends 111 is set on this other end, and actuation ends 111 is used to promote the mechanism of circuit breaker.
Be provided with gas channel 103 in the side of housing 130, like Fig. 2, this gas channel 103 is arranged on the lower cover 102, and fixed air is pressed induction pieces 112 on the rotational structure that is positioned at housing 130 110, and this air pressure induction pieces 112 stretches in the gas channel 103.Air pressure induction pieces 112 is an engineering plastics spare, when making air pressure induction pieces 112, can with rotational structure 110 straight formings.At gas channel 103 places an arcwall face 105 that is rotatably assorted with air pressure induction pieces 112 is set near air pressure induction pieces 112 outsides; Arcwall face 105 is used for rotational structure 110 in rotating process and 112 peripheral cooperations of air pressure induction pieces; And the center of circle of arcwall face 105 is the axle center of rotational structure 110; Guarantee that rotational structure 110 closely cooperates with air pressure induction pieces 112 peripheries, can not cause gas to leak in a large number in rotation process.This arcwall face 105 can be linked to be an integral body with lower cover 102, also can be a piece of being with arcwall face that is provided with separately.
Have another arcwall face 104 at gas channel 103 places near air pressure induction pieces 112 inboards and cooperate with rotational structure 110, arcwall face 104 can prevent that air-flow is excessive from the gap between rotational structure 110 and the housing 130.Arcwall face 104 can be linked to be an integral body with lower cover 102, also can be a piece to the band arcwall face of housing 130 inner protrusions that is provided with separately.
Between rotational structure 110 and housing 130, be provided with the flexible member rod like parts 140 that limit rotation structure 110 is rotated.Air pressure induction pieces 112 is accepted from the pressure gas stream of crossing that gas channel 103 openings of contact apparatus side are overflowed rotational structure 110 to be rotated, and actuation ends 111 is hit snap close fast simultaneously, produces tripping operation.
As shown in Figure 1; When being used for multipole circuit breaker; Loam cake 101 at housing 130 is respectively equipped with two gas channels 103 along the configuration of axially staggering of rotational structure 110 with lower cover 102 sides, and these two gas channels 103 are opened on respectively on loam cake 101 and the lower cover 102, have two air pressure induction pieces 112 to correspond respectively to this two gas channels 103; And these two air pressure induction pieces 112 are respectively along the configuration of axially staggering of rotational structure 110; Multiple tracks divider wall 106 is fixedly mounted on the housing 130 being provided with together perhaps between two air pressure induction pieces 112, and between loam cake 101 and lower cover 102, in order to intercept the charged air-flow that overflows from movement clearance.Divider wall 106 is an engineering plastics spare, and thickness can enough approach, can be on housing 130 during making straight forming so that the breaker of plastic casing and the protective value of the small-sized shell frame of packing into are unaffected.
Claims (1)
1. quick releasing device for miniaturized circuit breaker; Comprise the housing (130) that involutes by loam cake (101) and lower cover (102); Rotational structure (110) one ends are installed in the housing (130); It is characterized in that: rotational structure (110) other end stretches out outside the housing (130) and has an actuation ends (111), is provided with gas channel (103) in the side of housing (130), goes up fixed air in the rotational structure that is positioned at housing (130) (110) and presses induction pieces (112) to stretch into passage (103);
Locating to have the arcwall face (105) that is rotatably assorted with air pressure induction pieces (112) near the gas channel (103) in air pressure induction pieces (112) outside, and the center of circle of arcwall face (105) is the axle center of rotational structure (110); Cooperate with rotational structure (110) locating to have another arcwall face (104) near the inboard gas channel (103) of air pressure induction pieces (112);
Loam cake (101) and lower cover (102) side in housing (130) are respectively equipped with two gas channels (103) of configuration that axially stagger; Have the air pressure induction pieces (112) of two configurations of axially staggering to correspond respectively to two gas channels (103), multiple tracks divider wall (106) is installed on the housing (130) having together perhaps between two gas channels (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910026685 CN101685727B (en) | 2009-05-11 | 2009-05-11 | Quick releasing device for miniaturized circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910026685 CN101685727B (en) | 2009-05-11 | 2009-05-11 | Quick releasing device for miniaturized circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101685727A CN101685727A (en) | 2010-03-31 |
| CN101685727B true CN101685727B (en) | 2012-12-05 |
Family
ID=42048812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910026685 Active CN101685727B (en) | 2009-05-11 | 2009-05-11 | Quick releasing device for miniaturized circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101685727B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888067B (en) * | 2010-07-08 | 2012-07-18 | 江苏辉能电气有限公司 | Draw-out type pre-tripping device of low-voltage circuit breaker |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2596537Y (en) * | 2002-09-12 | 2003-12-31 | 浙江正泰电器股份有限公司 | Low votage breaker with quick tripping function |
| CN101009178A (en) * | 2006-01-25 | 2007-08-01 | 大全集团有限公司 | Trip braking device of breaker |
-
2009
- 2009-05-11 CN CN 200910026685 patent/CN101685727B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2596537Y (en) * | 2002-09-12 | 2003-12-31 | 浙江正泰电器股份有限公司 | Low votage breaker with quick tripping function |
| CN101009178A (en) * | 2006-01-25 | 2007-08-01 | 大全集团有限公司 | Trip braking device of breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101685727A (en) | 2010-03-31 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiang Changsheng Inventor after: Zhu Weidong Inventor after: Yuan Tianjiang Inventor before: Zhu Weidong Inventor before: Jiang Changsheng Inventor before: Zhang Haiyan Inventor before: Yang Jianguo Inventor before: Yuan Tianjiang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHU WEIDONG JIANG ZHANGSHENG ZHANG HAIYAN YANG JIANGUO YUAN TIANJIANG TO: JIANG ZHANGSHENG ZHU WEIDONG YUAN TIANJIANG |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220706 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, East Xing Gang Dong Road, Zhenjiang New District, Jiangsu, Zhenjiang A5 Patentee before: Jiangsu Phono Electric Co.,Ltd. |
|
| 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. |