CN101075514A - Circuit-breaker - Google Patents
Circuit-breaker Download PDFInfo
- Publication number
- CN101075514A CN101075514A CN 200610140179 CN200610140179A CN101075514A CN 101075514 A CN101075514 A CN 101075514A CN 200610140179 CN200610140179 CN 200610140179 CN 200610140179 A CN200610140179 A CN 200610140179A CN 101075514 A CN101075514 A CN 101075514A
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- pedestal
- fixed
- described pedestal
- mounting panel
- 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.)
- Granted
Links
Images
Abstract
The invention provides a breaker, which can effectively loose the heat in the breaker outward and make the heat in the breaker average. The said breaker comprises: shell, composed of top cover (12) formed by synthetic resion and base (11); stationary contact member (4) fixed on the said base (11); movable contact member (18)contacting with or leaving the said stationary contact member (4) to turn on/off the load current; switching mechanism (30) fixed on the base (11); and tripping unit (22). The base is composed of the following parts: metal parts (51,52) embedding and shaping up in the said base (11). A part of the said metal part bares from the base (11). When the base (11) is fixed on the mounting plate (2) on the breaker, the nudity of the metal part is joined with the mounting plate (2).
Description
Technical field
The present invention relates to a kind of circuit breaker that is used for overcurrent protection, particularly with the hot outwards circuit breaker of bulk storage that in circuit breaker, produces.
Background technology
Generally speaking, when having electric current to flow through in the circuit breaker,, can produce high temperature near the set bolt portion of fixed contact spare and tripping mechanism in circuit breaker inside.In addition, the structure that circuit breaker is installed in the bottom surface side of the construction bolt on the distribution board etc. is, is provided with the step with other parts of bottom surface, makes and can stablize when installing, therefore the heat that produces in the circuit breaker is come bulk storage by the construction bolt portion of wire connecting, air and distribution board.
Existing circuit breaker, in order to improve its thermal diffusivity, have the parts of good heat conductivity and the tight contact of terminal board by improving with base, make the heat that exists in the terminal component of circuit breaker, bottom surface sections or wall portion effusion (for example, with reference to patent documentation 1) from pedestal; Perhaps, by the rear side at the pedestal of circuit breaker heating panel is set, the hot bulk storage that makes the switching mechanism of circuit breaker produce is gone out.(for example, with reference to patent documentation 2)
Patent documentation 1: the spy opens flat 6-119869
Patent documentation 2: open clear 54-144269 in fact
Summary of the invention
The step of the construction bolt portion of existing circuit breaker, the part of formation shell; Because shell is made of synthetic resin etc., compares with metal, pyroconductivity is lower.Therefore, the ratio of specific heat of construction bolt portion effusion is less.In addition, other parts of bottom surface, according to the installation method of circuit breaker, perhaps contacting or discontiguous situation with the distribution card can appear in the method that connects of electric wire, even after making it and the distribution card contacts for heat radiation, also have the situation that can not play a role.In addition, for the structure that heating panel all exposes in base bottom surface, heating panel might get an electric shock owing to reasons such as accident become the occasion of conductive part.
The objective of the invention is to, a kind of circuit breaker is provided, the problem that it solves in the above-mentioned existing circuit breaker makes the heat energy of circuit breaker inside enough effectively to outside bulk storage.
Circuit breaker of the present invention possesses: shell, and it is made of formed top cover of synthetic resin and pedestal; Fixed contact spare, it is fixed on the described pedestal; Movable contact component, it contacts or leaves with described fixed contact spare, thus the on/off load current; Switching mechanism, it is fixed on the described pedestal, makes described movable contact component contact or leave with described fixed contact spare; And trip unit, it is fixed on the described pedestal, when described load current during more than or equal to setting, move, make described movable contact component leave described fixed contact spare, it is characterized in that, described pedestal has and is embedded in its inner metal parts, this metal parts has exposed division, when described pedestal being fixed on when installing on the mounting panel that circuit breaker uses this exposed division and described mounting panel butt.
The effect of invention
By circuit breaker of the present invention, the inner heat that produces of circuit breaker, by the metal parts of burying underground in the pedestal, can be effectively to the outside bulk storage of circuit breaker.And, owing to can dwindle the area of section of conductor, so can easily carry out the miniaturization of circuit breaker.
Description of drawings
Fig. 1 is the profile of the related circuit breaker of embodiment of the present invention 1.
Fig. 2 is the ground plan of the pedestal of the related circuit breaker of embodiment of the present invention 1.
Fig. 3 is the profile of the pedestal of the related circuit breaker of embodiment of the present invention 1.
Fig. 4 is the part sectioned view of embodiment of the present invention 1 related circuit breaker when being installed on the mounting panel.
Fig. 5 is the ground plan of the pedestal of the related circuit breaker of embodiment of the present invention 2.
Fig. 6 is the profile of the pedestal of the related circuit breaker of embodiment of the present invention 2.
Fig. 7 be the related circuit breaker of embodiment of the present invention 2 be installed on the mounting panel time part sectioned view.
Fig. 8 is the ground plan of the pedestal of the related circuit breaker of embodiment of the present invention 3.
Fig. 9 is the profile of the pedestal of the related circuit breaker of embodiment of the present invention 3.
Embodiment
Fig. 1 is a profile, its expression embodiment of the present invention 1 related three-phase on-state of circuit breaker.In Fig. 1, circuit breaker 1 has: shell 10, and it is made of the pedestal 11 and the top cover 12 that all form by the synthetic resin material, and described pedestal 11 is installed on the mounting panel 2 of distribution board etc.Power supply side terminal bolt 5 is spirally connected via through hole and power supply side terminal 4, and this through hole is located on the leading-in conductor 3 of being drawn by power supply.Power supply side terminal 4 is connected with electric means or mechanical system with leading-in conductor 3.In addition, load side terminal bolt 8, the load side terminal 7 by through hole and circuit breaker 1 is spirally connected, this through hole for leading-in conductor 3 opposite sides in dispose set through hole in the leading-in conductor 6 of load; Load side terminal 7 is connected with electric means or mechanical system with leading-in conductor 6.
The end of the circuit breaker inboard of power supply side terminal 4 constitutes the fixed contact spare with fixed contact 4a.Movable contact component 18 has moving contact 18a, and it contacts or leave with fixed contact 4a.Movable contact component 18 remains on the support 20 rotationally by axle 19.In addition, movable contact component 18 is connected with switching mechanism 30 via cross bar (not shown), by the action of switching mechanism 30, via cross bar, is that rotate at the center with axle 19, makes moving contact 18a contact or leave with fixed contact 4a.The handle of operating from the outside of circuit breaker 1 14, constitute by the synthetic resin material identical, make switching mechanism 30 actions, via cross bar with pedestal 11 and top cover 12, movable contact component 18 is rotated, thereby make moving contact 18a contact or leave with fixed contact 4a.
Have in the circuit breaker 1 of above structure, circuital current is via the leading-in conductor 3 of drawing from power supply, fixed contact spare 4, fixed contact 4a, moving contact 18a, movable contact component 18, support 20, heating element 21, load side terminal 7, to the path flow of the leading-in conductor 6 of load.If flow through circuital current in the circuit breaker 1, then the temperature of this current path rises.Because the rising of this temperature on the bottom surface of the pedestal 11 shown in Fig. 2, the high-temperature portion of high temperature occurs becoming.Among Fig. 2, impale especially the scope of the high-temperature portion that produces based on the heating of the contact site of fixed contact spare 4 and movable contact component 18, be expressed as high-temperature portion 56a with solid line; Impale based on the heating of support 20 and heating element 21 and the scope of the high-temperature portion that produces is expressed as high-temperature portion 56b with solid line.
Fig. 2 is the ground plan of the pedestal of the circuit breaker represented among Fig. 1; Fig. 3 is the profile of the pedestal represented among Fig. 2.In Fig. 2 and Fig. 3, the heating panel 51 as the 1st metallic object is formed by metallic plate, is buried underground in the pedestal 11 by embedding shaping.As the metal cylinder 52 of the 2nd metallic object, be connected with heating panel 51 or contact, be shaped and buried underground in the pedestal 11 by embedding.This metal cylinder 52 has the exposed division that exposes from pedestal 11, when being fixed on circuit breaker 1 on the mounting panel 2, and this exposed division and mounting panel 2 butts.As shown in phantom in Figure 2, heating panel 51 has the shape that extends in the whole bottom surface of pedestal 11, and this heating panel integral body is embedded into and is formed in the pedestal 11.Constitute metal parts of the present invention as the heating panel 51 of the 1st metallic object with as the metal cylinder 52 of the 2nd metallic object.
The bottom surface side of pedestal 11 be respectively equipped with through hole 53, load side terminal bolt 8 usefulness of power supply side terminal bolt 5 usefulness through hole 54, be fastenedly connected the through hole 55 that the connecting bolt of support 20 and heating element 21 is used.Heating panel 51 have along the semi-circular cut-out portion of the roughly half cycle of through hole 53 and 54 and with the notch of through hole 55 correspondingly-shaped.Based on the heating of described support 20 and heating element 21 and the high-temperature portion 56b that produces corresponding near the through hole 55, but heating panel 51 covers this high-temperature portion 56b, and the relevant high-temperature portion 56a of contact site of covering and described fixed contact spare 4 and movable contact component 18, promptly cover fixed contact spare 4 and pedestal 11 facing surfaces.
High- temperature portion 56a, 56b are owing to covered by heating panel 51, and the heat of generation is conducted to heating panel 51.Because heating panel 51 extends,, make temperature-averagingization between each position of circuit breaker inside so be transmitted to heat on the heating panel 51 to the whole bottom surface diffusion of circuit breaker 1 on the almost whole bottom surface of pedestal 11.
Fig. 4 is a part sectioned view, and this profile is represented circuit breaker is installed in state on the mounting panel 2 of distribution board etc.In Fig. 4, circuit breaker 1, is fixed on the mounting panel 2 of distribution board etc. by circuit breaker construction bolt 58 via the circuit breaker installing hole 57 that is located on the top cover 12.The bottom surface side of pedestal 11 is provided with circuit breaker support sector 61, described circuit breaker support sector 61 and mounting panel 2 butts.Circuit breaker support sector 61 has following structure: its another bottom surface from pedestal 11 is given prominence to and is formed, and utilizes this step, makes the bottom surface of pedestal stably be installed on the mounting panel 2.
By the circuit breaker that relates in the execution mode 1,, can make the temperature-averagingization between each position of circuit breaker inside, and keep constant, thereby carry out the heat conduction design easily because the heating panel that is embedded into extends in the whole bottom surface of pedestal.In addition, quilt is buried underground in the pedestal 11 because heating panel and metal cylinder are by embedding shaping, so even heating panel becomes conductive part, need not also to worry that the situation that has electric shock takes place.
Fig. 5 is the ground plan that embodiment of the present invention 2 related three-phases are used circuit breaker, and Fig. 6 is the profile of pedestal.The part identical or suitable with execution mode 1 marks identical label.Among Fig. 5 and Fig. 6, same with execution mode 1, pedestal 11 have through hole 53, load side terminal bolt 8 usefulness of power supply side terminal bolt 5 usefulness through hole 54, be fastenedly connected the through hole 55 that the connecting bolt of support 20 and heating element 21 is used.
Constitute the heating panel 51a of metal parts of the present invention, on the almost whole surface of pedestal 11, be embedded into, its have along the semi-circular cut-out portion of the roughly half cycle of through hole 53 and 54 and with the notch of through hole 55 correspondingly-shaped.High-temperature portion 56b (with reference to figure 2) explanation, that produce based on the heating of support 20 and heating element 21 in execution mode 1, near through hole 55, but except surface corresponding to the notch of the shape of through hole 55, heating panel 51 covers this high-temperature portion 56b, and the relevant high-temperature portion 56a (with reference to figure 2) of contact site of covering and described fixed contact spare 4 and movable contact component 18, promptly cover fixed contact spare 4 and pedestal 11 right surface.
Fig. 7 is a part sectioned view, and this profile represents that circuit breaker is installed in the state on the mounting panel 2 of distribution board etc.Among Fig. 7, on the part that the circuit breaker construction bolt 58 of heating panel 51a is passed through, be provided with through hole 59.Be provided with flange (burring) portion 60 around the through hole 59 of heating panel 51a, the inner surface of this turn-up portion 60 is provided with negative thread, and this negative thread and circuit breaker construction bolt 58 are spirally connected.
The exposed division that the turn-up portion 60 of heating panel 51a is exposed from pedestal 11 as the end face of the exposed division of this turn-up portion 60, forms same plane with the bottom surface of circuit breaker support sector 61.Therefore, when circuit breaker is installed on the mounting panel 2, as the end face of the exposed division of the turn-up portion 60 of heating panel 51a, with mounting panel 2 butts.The turn-up portion 60 of heating panel 51a is equivalent to the metal cylinder 52 of execution mode 1.The structure of other parts is all with identical described in the execution mode 1.
For the related circuit breaker of the embodiment of the present invention 2 with above structure, because high- temperature portion 56a, 56b covered by heating panel 51a, so the heat that produces is conducted to heating panel 51a.Because heating panel 51a extends,, make temperature-averagingization between each position of circuit breaker inside so be transmitted to heat on the heating panel 51a to the whole bottom surface diffusion of circuit breaker 1 on the almost whole bottom surface of pedestal 11.
In addition, conducted to the heat of heating panel 51a,, conducted to mounting panel 2 via turn-up portion 60 and circuit breaker construction bolt 58, thus can be to the outside bulk storage of circuit breaker 1.The circuit breaker that execution mode 2 is related is compared with execution mode 1, owing to do not use metal cylinder 52, can reduce expense and save the space, and have the radiating effect identical with execution mode 1.
Fig. 8 is the ground plans of the related three-phases of embodiment of the present invention 3 with circuit breaker, and Fig. 9 is the profile of pedestal, and the part identical or suitable with execution mode 1 marks identical label.Among Fig. 8 and Fig. 9, identical with execution mode 1,2, be respectively equipped with on the pedestal 11 through hole 53, load side terminal bolt 8 usefulness of power supply side terminal bolt 5 usefulness through hole 54, be fastenedly connected the through hole 55 that the connecting bolt of support 20 and heating element 21 is used.
As the heating panel 51b of the 1st metallic object, on the almost whole surface of pedestal 11, be embedded into, its have along the semi-circular cut-out portion of the roughly half cycle of through hole 53 and 54 and with the notch of through hole 55 correspondingly-shaped.High-temperature portion 56b (with reference to figure 2) explanation, that produce based on the heating of support 20 and heating element 21 in execution mode 1, near through hole 55, but except part corresponding to the notch of the shape of through hole 55, heating panel 51 covers this high-temperature portion 56b, and the relevant high-temperature portion 56a (with reference to figure 2) of contact site of covering and described fixed contact spare 4 and movable contact component 18, promptly cover fixed contact spare 4 and pedestal 11 right part.
In addition, the end that circuit breaker support sector heating panel 51b and pedestal 11 61 is corresponding, have the bend to the lower face side bending of pedestal 11, the end face 62 of this bend constitutes exposed division, and the bottom surface of the circuit breaker support sector 61 of this exposed division and pedestal 11 is that expose on same plane.Therefore, when being installed in circuit breaker 1 on the mounting panel 2, as the end face 62 of the exposed division of the bend of heating panel 51b, with the surperficial butt of mounting panel 2.And, identical with execution mode 1, on the part that the circuit breaker construction bolt 58 of pedestal 11 is passed through, be embedded into metal cylinder 52 as the 2nd metallic object.Constitute metal parts of the present invention as the heating panel 51b of the 1st metallic object with as the metal cylinder 52 of the 2nd metallic object.
For the related circuit breaker of the embodiment of the present invention 3 with above structure, because high- temperature portion 56a, 56b covered by heating panel 51b, so the heat that produces is conducted to heating panel 51b.Because heating panel 51b extends,, make temperature-averagingization between each position of circuit breaker inside so be transmitted to heat on the heating panel 51b to the whole bottom surface diffusion of circuit breaker 1 on the almost whole bottom surface of pedestal 11.
In addition, conducted to the heat of heating panel 51b,, conducted to mounting panel 2, and conducted to mounting panel 2 via the section 62 of the bend of heating panel 51b via metal cylinder 52 and circuit breaker construction bolt 58, thereby to the outside bulk storage of circuit breaker 1.
The circuit breaker that execution mode 3 is related is compared with the circuit breaker of execution mode 1 and 2, since bigger with respect to the contact-making surface of the heat-conduction part of mounting panel 2, can more effectively dispel the heat.
In addition, in execution mode 3, the turn-up portion 60 of execution mode 2 can be set on heating panel 51b also, to replace metal cylinder 52.In addition, according to circumstances, in execution mode 3, also metal cylinder 52 and turn-up portion 60 can be set.
Claims (6)
1. circuit breaker, it possesses:
Shell, it is made of formed top cover of synthetic resin and pedestal;
Fixed contact spare, it is fixed on the described pedestal;
Movable contact component, it contacts or leaves with described fixed contact spare, thus the on/off load current;
Switching mechanism, it is fixed on the described pedestal, makes described movable contact component contact or leave with described fixed contact spare; And
Trip unit, it is fixed on the described pedestal, when described load current during more than or equal to setting, moves, and makes described movable contact component leave described fixed contact spare,
It is characterized in that,
Described pedestal has and is embedded in its inner metal parts, and this metal parts has exposed division, when described pedestal being fixed on when installing on the mounting panel that circuit breaker uses this exposed division and described mounting panel butt.
2. circuit breaker according to claim 1 is characterized in that,
Described metal parts is by constituting with lower member: the 1st metallic object, and it is embedded in the described pedestal corresponding to the almost whole bottom surface of described pedestal; And the 2nd metallic object, it is connected with described the 1st metallic object or contacts, is embedded in the described pedestal,
Described the 2nd metallic object has exposed division, when described pedestal being fixed on when installing on the mounting panel that circuit breaker uses this exposed division and described mounting panel butt.
3. circuit breaker according to claim 2 is characterized in that,
Described the 2nd metallic object has hole portion, and this hole portion connects the construction bolt that described pedestal is fixed on the described mounting panel.
4. circuit breaker according to claim 1 is characterized in that,
Described metal parts is made of metallic plate, and this metallic plate is embedded in the described pedestal corresponding to the almost whole bottom surface of described pedestal,
This metallic plate has the turn-up portion that end face exposes from described pedestal, when described pedestal being fixed on when installing on the mounting panel that circuit breaker uses the end face of this turn-up portion and this mounting panel butt.
5. circuit breaker according to claim 4 is characterized in that,
Described turn-up portion has hole portion, and this hole portion connects the construction bolt that described pedestal is fixed on the described mounting panel,
The inner surface of this hole portion has the negative thread that is spirally connected with described construction bolt.
6. circuit breaker according to claim 1 is characterized in that,
Described metal parts is made of metallic plate, and this metallic plate is embedded in the described pedestal corresponding to the almost whole bottom surface of described pedestal, and expose from described pedestal its end,
When described pedestal being fixed on when installing on the mounting panel that circuit breaker uses the described end of this metallic plate and this mounting panel butt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006139059 | 2006-05-18 | ||
| JP2006139059A JP4646036B2 (en) | 2006-05-18 | 2006-05-18 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101075514A true CN101075514A (en) | 2007-11-21 |
| CN100580841C CN100580841C (en) | 2010-01-13 |
Family
ID=38843857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610140179A Expired - Fee Related CN100580841C (en) | 2006-05-18 | 2006-10-10 | Circuit-breaker |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4646036B2 (en) |
| CN (1) | CN100580841C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410103A (en) * | 2020-03-17 | 2021-09-17 | 北京京人电器有限公司 | Plastic casing type circuit breaker |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5292787B2 (en) | 2007-11-30 | 2013-09-18 | ソニー株式会社 | Solid-state imaging device and camera |
| JP4724218B2 (en) * | 2008-10-28 | 2011-07-13 | パナソニック電工電路株式会社 | Distribution board |
| JP5423657B2 (en) | 2010-11-30 | 2014-02-19 | 株式会社日立製作所 | Switchgear unit and switchgear equipped with switchgear unit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5721036A (en) * | 1980-07-15 | 1982-02-03 | Mitsubishi Electric Corp | Circuit breaker |
| JPS58150256U (en) * | 1982-03-31 | 1983-10-08 | 東芝ライテック株式会社 | circuit break |
| JPH0741946U (en) * | 1993-12-21 | 1995-07-21 | 松下電工株式会社 | Multi-pole circuit breaker |
| JP2003234056A (en) * | 2002-02-06 | 2003-08-22 | Mitsubishi Electric Corp | Circuit breaker |
-
2006
- 2006-05-18 JP JP2006139059A patent/JP4646036B2/en not_active Expired - Fee Related
- 2006-10-10 CN CN200610140179A patent/CN100580841C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410103A (en) * | 2020-03-17 | 2021-09-17 | 北京京人电器有限公司 | Plastic casing type circuit breaker |
| CN113410103B (en) * | 2020-03-17 | 2023-01-10 | 北京京人电器有限公司 | Plastic casing type circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100580841C (en) | 2010-01-13 |
| JP4646036B2 (en) | 2011-03-09 |
| JP2007311183A (en) | 2007-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200969417Y (en) | Memory card socket structure | |
| CN1251271C (en) | Blade fuse | |
| CN200953394Y (en) | Memory card socket structure | |
| CN104508782B (en) | Circuit breakers pole part with heat transfer shielding part | |
| CN101075514A (en) | Circuit-breaker | |
| CN1180508C (en) | Heat protector | |
| CN1910718B (en) | Switching device | |
| CN104335313A (en) | Switching unit or switching gear | |
| CN1063577C (en) | Circuit breaker | |
| GB2562069A (en) | Improved vacuum circuit breaker | |
| CN2763958Y (en) | Outdoor high-voltage isolation switch | |
| CN1215507C (en) | Button switch | |
| CN1261957C (en) | Air insualtion high voltage breaker | |
| CN1494727A (en) | Automatic air circuit breaker | |
| JP2012099355A (en) | Battery module and battery connection configuration | |
| CN101986411A (en) | Universal circuit breaker with double breaking points | |
| CN1835162A (en) | Probe of contactor and a.c. contactor thereof | |
| CN2746509Y (en) | Overtravel spring combiner for outdoor AC high-voltage vacuum circuit breaker | |
| CN209461393U (en) | A kind of plug-in switch module for miniature circuit breaker | |
| CN206628399U (en) | A kind of strong high voltage isolator moving contact of contact performance | |
| CN1513193A (en) | Magnetic yoke of electromagnetic tripping device | |
| CN1263059C (en) | Moveable contact for push-button switch and switch device using same | |
| CN211980496U (en) | Vacuum circuit breaker with heat dissipation pole | |
| CN218101080U (en) | Pole of vacuum circuit breaker and vacuum circuit breaker | |
| CN218676977U (en) | Contact system and circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20131010 |