CN101533741A - Base of low-voltage circuit breaker - Google Patents
Base of low-voltage circuit breaker Download PDFInfo
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- CN101533741A CN101533741A CN200810071880A CN200810071880A CN101533741A CN 101533741 A CN101533741 A CN 101533741A CN 200810071880 A CN200810071880 A CN 200810071880A CN 200810071880 A CN200810071880 A CN 200810071880A CN 101533741 A CN101533741 A CN 101533741A
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- groove
- base body
- contact
- circuit breaker
- voltage circuit
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Abstract
A base of a low-voltage circuit breaker comprises a base body which is provided with at least three contact grooves which are parallel mutually, adjacent contact grooves are separated by a middle groove wall, and the middle groove wall and the bottom wall of the base body are provided with a heat-dissipation channel which communicates the contact groove positioned in the middle part with the space outside the side wall of the base body. Heat generated when moving and static contacts in the contact groove positioned in the middle part work can be quickly discharged from the side surface of the base body through the heat-dissipation channel, thus causing the circuit breaker to reach good heat-dissipation performance.
Description
Technical field
The present invention relates to the structure of low-voltage circuit breaker, specifically be meant the base of low-voltage circuit breaker.
Background technology
Low-voltage circuit breaker is the main device for switching of low-voltage power supply and distribution system; it can be connected, carrying and disjunction running current; also can disjunction overcurrent and short-circuit current, it can play the kinds of protect function, as overload, short circuit, under voltage, single-phase earthing and electric leakage etc.
The primary structure of low-voltage circuit breaker comprises contact system, release, operating mechanism, arc quenching system etc., and these parts are assembled into one by a bracing or strutting arrangement, and this bracing or strutting arrangement comprises base and loam cake.Contact system generally includes at least three pairs of dynamic and static contacts, described base correspondence is provided with at least three contact pocket, each is assemblied in the contact pocket dynamic and static contact correspondence, and the cell wall that forms between the adjacent contact groove was both played a supporting role, and also can play insulating effect.Contact system the time can produce a large amount of heats in work, and the contact pocket that is positioned on the limit is easier to heat radiation, but the contact pocket in the middle of being positioned at because its both sides also all have contact pocket, thereby is not easy heat radiation, easily causes fault.
Summary of the invention
The invention provides a kind of base of low-voltage circuit breaker, its main purpose is to overcome the bad shortcoming of contact heat radiation that is positioned at the centre position of existing low-voltage circuit breaker.
The present invention adopts following technical scheme: the base of low-voltage circuit breaker, comprise a base body, this base body is provided with at least three contact pocket parallel to each other, separate by middle cell wall between adjacent two contact pocket, diapire of cell wall and described base body is provided with heat dissipation channel in the middle of it, and the contact pocket in the middle part of this heat dissipation channel will be positioned at is connected with the space outside the base body sidewall.
The base of aforementioned low-voltage circuit breaker, sidewall of its contact pocket in the middle of being positioned at is provided with one first groove, this first groove in being installed on this contact pocket moving contact and the contact site between the fixed contact; The bottom surface of described base body is provided with a upwardly extending slotted eye corresponding to the position of this centre cell wall, and this slotted eye is connected with described first groove; Described base body bottom surface is provided with second groove, and this second groove is communicated with described slotted eye bottom with the side of described base body, and described first groove, slotted eye and second groove constitute described heat dissipation channel.
Described first groove is the strip of longitudinal extension, and its top connects the top of this centre cell wall.
Further, described first groove is surrounded by a back side, two side faces and a bottom face, the parallel sidewalls of this back side and described contact pocket, and this two side faces and bottom face are vertical with the sidewall of described contact pocket, and described slotted eye is connected with the back side of this first groove.
By above-mentioned description to structure of the present invention as can be known, compare with prior art, the present invention has following advantage: the heat that produces when the dynamic and static contact of contact pocket is worked in the middle of being arranged in can be discharged rapidly to the side of base body by this heat dissipation channel, thereby makes circuit breaker reach good performance of heat dissipation.
Description of drawings
Fig. 1 is a perspective view of the present invention;
Fig. 2 be among Fig. 1 A-A to profile;
Fig. 3 be among Fig. 1 B-B to profile.
Embodiment
The specific embodiment of the present invention is described with reference to the accompanying drawings.
Present embodiment provides a kind of base of low-voltage circuit breaker, is used to assemble the contact system and the associated components of low-voltage circuit breaker.With reference to Fig. 1, this base comprises a base body 1, and this base body 1 is provided with three contact pocket parallel to each other 2,3,4, is used for assembling respectively three pairs of dynamic and static contacts.Separated by middle cell wall 23,34 respectively between adjacent two contact pocket 2 and 3,3 and 4, the lateral wall that is positioned at two contact pocket 2,4 of both sides is 20,40.
Referring to figs. 1 through Fig. 3, the diapire of cell wall 23,34 and described base body 1 is respectively equipped with heat dissipation channel 6,7 in the middle of above-mentioned, 1 liang of lateral wall of contact pocket 3 and base body, 20, the 40 outer spaces that this heat dissipation channel 6,7 will be positioned at the middle part are connected, and can promptly distribute so that be arranged in the heat that produces when the dynamic and static contact of middle contact pocket 3 is worked.
With reference to Fig. 2 and Fig. 3, the sidewall of the contact pocket 3 of cell wall 23 in the middle of being positioned at is provided with one first groove 61 in the middle of described, this first groove 61 in being installed on this contact pocket 3 moving contact and the contact site between the fixed contact, the bottom surface of described base body 1 is provided with a upwardly extending slotted eye 62 corresponding to the position of this centre cell wall 23, this slotted eye 62 is connected with described first groove 61, described base body 1 bottom surface is provided with second groove 63, this second groove 63 is communicated with this first groove 61 with described slotted eye 62 bottoms with lateral wall 20 lateral surfaces of described base body 1, the slotted eye 62 and second groove 63 constitute described heat dissipation channel 6.This first groove 61 is the strip of longitudinal extension, and its top connects the top of this centre cell wall 23.This first groove 61 is surrounded by a back side, two side faces and a bottom face, the parallel sidewalls of this back side and described contact pocket 3, and this two side faces and bottom face are vertical with the sidewall of described contact pocket 3, and described slotted eye 62 is connected with the back side of this first groove 63.With reference to Fig. 2 and Fig. 3 as can be known, this first groove 61 and second groove 63 are the certain distances that staggers mutually at above-below direction.
Similarly, with reference to Fig. 2 and Fig. 3, the sidewall of the contact pocket 3 of cell wall 34 in the middle of being positioned at is provided with one first groove 71 in the middle of described, this first groove 71 in being installed on this contact pocket 3 moving contact and the contact site between the fixed contact, the bottom surface of described base body 1 is provided with a upwardly extending slotted eye 72 corresponding to the position of this centre cell wall 34, this slotted eye 72 is connected with described first groove 71, described base body 1 bottom surface is provided with second groove 73, this second groove 73 is communicated with this first groove 71 with described slotted eye 72 bottoms with lateral wall 40 lateral surfaces of described base body 1, the slotted eye 72 and second groove 73 constitute described heat dissipation channel 7.This first groove 71 is the strip of longitudinal extension, and its top connects the top of this centre cell wall 34.This first groove 71 is surrounded by a back side, two side faces and a bottom face, the parallel sidewalls of this back side and described contact pocket 3, and this two side faces and bottom face are vertical with the sidewall of described contact pocket 3, and described slotted eye 72 is connected with the back side of this first groove 73.With reference to Fig. 2 and Fig. 3 as can be known, this first groove 71 and second groove 73 are the certain distances that staggers mutually at above-below direction.
The heat that produces when the dynamic and static contact of contact pocket 3 is worked in the middle of being arranged in can be discharged rapidly to the two side of base body 1 20,40 lateral surfaces by this heat dissipation channel 6,7, thereby makes circuit breaker reach good performance of heat dissipation.
Above-mentioned only is the specific embodiment of the present invention, but design concept of the present invention is not limited thereto, and allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection range of the present invention.
Claims (4)
1, the base of low-voltage circuit breaker, comprise a base body, this base body is provided with at least three contact pocket parallel to each other, separate by middle cell wall between adjacent two contact pocket, it is characterized in that: the diapire of cell wall and described base body is provided with heat dissipation channel in the middle of described, and the contact pocket in the middle part of this heat dissipation channel will be positioned at is connected with the space outside the base body sidewall.
2, the base of low-voltage circuit breaker as claimed in claim 1 is characterized in that: the sidewall of described contact pocket in the middle of being positioned at is provided with one first groove, this first groove in being installed on this contact pocket moving contact and the contact site between the fixed contact; The bottom surface of described base body is provided with a upwardly extending slotted eye corresponding to the position of this centre cell wall, and this slotted eye is connected with described first groove; Described base body bottom surface is provided with second groove, and this second groove is communicated with described slotted eye bottom with the side of described base body, and described first groove, slotted eye and second groove constitute described heat dissipation channel.
3, the base of low-voltage circuit breaker as claimed in claim 2 is characterized in that: described first groove is the strip of longitudinal extension, and its top connects the top of this centre cell wall.
4, the base of low-voltage circuit breaker as claimed in claim 3, it is characterized in that: described first groove is surrounded by a back side, two side faces and a bottom face, the parallel sidewalls of this back side and described contact pocket, this two side faces and bottom face are vertical with the sidewall of described contact pocket, and described slotted eye is connected with the back side of this first groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100718806A CN101533741B (en) | 2008-09-27 | 2008-09-27 | Base of low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100718806A CN101533741B (en) | 2008-09-27 | 2008-09-27 | Base of low-voltage circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101533741A true CN101533741A (en) | 2009-09-16 |
| CN101533741B CN101533741B (en) | 2011-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100718806A Active CN101533741B (en) | 2008-09-27 | 2008-09-27 | Base of low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101533741B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465234A (en) * | 2013-09-19 | 2015-03-25 | 天津中电华利电器科技集团有限公司 | Circuit breaker molded case |
| US10141140B2 (en) | 2016-12-05 | 2018-11-27 | Lsis Co., Ltd. | Air circuit breaker |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6437971B1 (en) * | 2000-03-20 | 2002-08-20 | General Electric Company | Interface for auxiliaries used with plug-in base |
| CN2653681Y (en) * | 2003-10-17 | 2004-11-03 | 厦门宏美电子有限公司 | AC contactor having changeable base |
| CN2819456Y (en) * | 2005-07-28 | 2006-09-20 | 莫建平 | Base for connecting breaker with electric operating mechanism |
| CN201041794Y (en) * | 2007-04-09 | 2008-03-26 | 浙江正泰电器股份有限公司 | Pluggable base for plastic shell appliance with multi-connection function |
| CN201307565Y (en) * | 2008-09-27 | 2009-09-09 | 厦门宏美电子有限公司 | Base of low-voltage circuit breaker |
-
2008
- 2008-09-27 CN CN2008100718806A patent/CN101533741B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465234A (en) * | 2013-09-19 | 2015-03-25 | 天津中电华利电器科技集团有限公司 | Circuit breaker molded case |
| US10141140B2 (en) | 2016-12-05 | 2018-11-27 | Lsis Co., Ltd. | Air circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101533741B (en) | 2011-05-18 |
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| 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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XIAMEN HONGFA ELECTRICAL SAFETY + CONTROLS CO., LT Free format text: FORMER NAME: XIAMEN HONGMEI ELECTRONIC CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Jimei North Industrial Zone, Xiamen city of Fujian province Donglin road 361021 No. 566 Patentee after: XIAMEN HONGFA ELECTRICAL SAFETY & CONTROLS CO., LTD. Address before: Jimei North Industrial Zone, Xiamen city of Fujian province Donglin road 361021 No. 566 Patentee before: Xiamen Hongmei Electronic Co., Ltd. |