CN102760621B - A kind of isolating switch that can improve breaking capacity - Google Patents
A kind of isolating switch that can improve breaking capacity Download PDFInfo
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- CN102760621B CN102760621B CN201210093234.6A CN201210093234A CN102760621B CN 102760621 B CN102760621 B CN 102760621B CN 201210093234 A CN201210093234 A CN 201210093234A CN 102760621 B CN102760621 B CN 102760621B
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- isolating switch
- breaking capacity
- striking piece
- arc striking
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Abstract
The present invention is a kind of isolating switch that can improve breaking capacity, comprising: a breaker body, wherein said breaker body comprises: a housing, and be placed in described housing an end of incoming cables, a leading-out terminal and an actuating mechanism, wherein, the on off state of the described breaker body described in actuating mechanism realization; Also comprise: an arc striking piece, it is positioned at the bottom of described actuating mechanism, described arc striking piece has an extension in its bending place, described arc striking piece is welded by the first arc striking piece part and the 2nd arc striking piece part, and the resistance of the first wherein said arc striking piece part is higher than the resistance of the 2nd arc striking piece part.
Description
Technical field
The present invention relates to a kind of isolating switch, particularly a kind of technological improvement that can improve isolating switch and produce the current value ability of open circuit action institute striking when short trouble occurs.
Background technology
For power department, switch switchgear is guarantee Electrical Safety, carries out the essential equipment of circuit switching, and its internal structure of existing isolating switch refers to shown in Fig. 1, and Figure 1A is the sectional view of existing isolating switch; Comprising: a housing 10, adopt flame-resistant insulation material to obtain, it be provided with following structure therein:
One end of incoming cables 131 and a leading-out terminal 132, in order to be linked in power line; One actuating mechanism, comprising: one handle 11, it has an operating side and is arranged at outside described housing 10, carries out the break-make control of circuit; One movable contact spring 121, its end has a dynamic contact; One coordinated signals block group 12, it is made up of multiple STATEMENT OF FEDERALLY SPONSORED, being rotated by the axle being arranged in described housing 10, one end of its STATEMENT OF FEDERALLY SPONSORED gone up most is connected with described handle 11, and the bottom end of STATEMENT OF FEDERALLY SPONSORED is connected with the front end of described movable contact spring 121; One rest contact 122, it is connected with described end of incoming cables 131, when turn handle 11 pulls described coordinated signals block group 12, thus cause dynamic contact and rest contact deciliter, the isolating switch that can realize basic on-off function in the application is referred to as breaker body.
Also comprising a short circuit detecting mechanism, when short trouble produces, it produces a triggering action, comprising:
One iron core 4, it is positioned at described housing 10, it is corresponding with the end coordinated signals block in described coordinated signals block group 12 by an angled slide block, when short circuit occurs, the iron core motion described in high-intensity magnetic field attraction produced, thus push away the end coordinated signals block in described coordinated signals block group by described angled slide block top, thus described breaker body is made to produce open circuit action; Also comprising: a return spring, produce after open circuit action at breaker body, power-off causes magnetic field to disappear, thus described return spring is with so that described plunger return, described end coordinated signals block is leaned action by releasing.
Also comprising: a short-circuit self-locking mechanism, when producing short trouble, it makes described isolating switch be in self-locking state, if user does not release self-locking state, then breaker body cannot normally close a floodgate, and described short-circuit self-locking mechanism comprises:
One hook-type trigger member 31, it is coupling in described housing 10, it is possible to the rotating shaft around correspondence is formed rotates;
One from lock section 32, itself and described hook-type trigger member 31 phase clasp joint, and comprises a compression spring 321, and described is corresponding with the hole on described housing 10 from the upper end of lock section 32; The described gear that has from lock section 32 supports end, and it is corresponding with an extension of described handle 11.
Also comprise: a bimetallic strip 51, it is connected with the first wire of described leading-out terminal 132, its one end is connected with described end coordinated signals block, when temperature is too high, described bimetallic strip 51 is bending thus makes described end coordinated signals block action, and then makes described breaker body produce open circuit action.
Also comprise: a cease spark cover 41, in order to eliminate electric arc to the destruction of isolating switch, refers to shown in Figure 1B, its displaying mainly carried out for the metal arc striking piece 2 in Figure 1A, described arc striking piece 2 its there is the bottom that a smooth section extends to described cease spark cover 41.
But existing isolating switch still exists when short trouble occurs, breaker body sound contact separation causes arc light that the device of enclosure interior is caused the defect of burn, and namely breaking capacity is low.
In view of above-mentioned defect, creator of the present invention, through long-term research and test, obtains this creation finally.
Summary of the invention
It is an object of the present invention to provide a kind of isolating switch that can improve breaking capacity, in order to overcome the low defect of existing isolating switch breaking capacity.
The technical solution used in the present invention is for achieving the above object, a kind of isolating switch that can improve breaking capacity is provided, comprising: a breaker body, wherein said breaker body comprises: a housing, and be placed in described housing an end of incoming cables, a leading-out terminal and an actuating mechanism, wherein, the on off state of the described breaker body described in actuating mechanism realization; Also comprise: an arc striking piece, it is positioned at the bottom of described actuating mechanism, described arc striking piece has an extension in its bending place, it is characterized in that, described arc striking piece is welded by the first arc striking piece part and the 2nd arc striking piece part, and the resistance of the first wherein said arc striking piece part is higher than the resistance of the 2nd arc striking piece part.
Wherein, the first described arc striking piece part is positioned at end of incoming cables.
Preferably, described extension length is 2 millimeters��7 millimeters.
Wherein, described actuating mechanism comprises:
One handle, it has an operating side and is arranged at outside described housing, realizes the break-make control of power line by stirring described handle;
One movable contact spring, its end has a dynamic contact, and it is connected with the first wire introduced by described leading-out terminal;
One coordinated signals block group, it is made up of multiple coordinated signals block, by being hinged and connected, comprising: one end of one first coordinated signals block is connected with described handle, and one end of an end coordinated signals block is connected with the front end of described movable contact spring;
One quiet tactile sheet, it is connected with the 2nd wire introduced by described end of incoming cables.
Preferably, the center vertical line of described dynamic contact is between described extension end and described quiet tactile sheet.
Preferably, also comprising a short circuit detecting mechanism, when short trouble produces, it produces a triggering action, comprising:
One iron core, by the coordinated signals block group generation action described in its motion triggers;
One return spring, it is with so that described plunger return.
Preferably, also comprising: a short-circuit self-locking mechanism, when producing short trouble, it makes described isolating switch be in self-locking state, comprising:
One hook-type trigger member, it is coupling in described housing;
One from lock section, itself and described hook-type trigger member phase clasp joint, and comprises a compression spring, and described is corresponding with the hole on described housing from the upper end of lock section; The described gear that has from lock section supports end, and it is corresponding with an extension of described handle.
Preferably, also comprising: a cease spark cover, it is placed in described short-circuit detecting mechanism bottom, and it is laminated by some arc extinguishing plates, and the smooth section that described arc striking piece has extends to bottom described cease spark cover.
Wherein, arc extinguishing plate is dull and stereotyped shape one of in described cease spark cover, and extends an extension to described quiet tactile sheet place.
Wherein, the extension length of described described dull and stereotyped shape arc extinguishing plate is 1 millimeter��15 millimeters.
Preferably, the extension length of described dull and stereotyped shape arc extinguishing plate is 2 millimeters��4 millimeters.
Preferably, also comprise: a bimetallic strip, it is connected with the first wire of described leading-out terminal, its one end is connected with described end coordinated signals block, when temperature is too high, described bimetallic strip is bending thus makes described end coordinated signals block action, and then makes described breaker body produce open circuit action.
Compared with the prior art, the useful effect of the present invention is, it provides when short trouble occurs, the breaking capacity of breaker body.
Accompanying drawing explanation
Figure 1A is the sectional view of existing isolating switch;
Figure 1B is the enlarged diagram of local A in Figure 1A;
Fig. 2 A is the structural representation that the present invention can improve the arc striking piece in the isolating switch of breaking capacity;
Fig. 2 B is the structural representation that the present invention can improve the better embodiment one of isolating switch of breaking capacity;
Fig. 2 C is the enlarged diagram of local B in Fig. 2 B;
Fig. 2 D is the structural representation that the present invention can improve the better embodiment two of isolating switch of breaking capacity;
Fig. 2 E is that the present invention can improve arc-extinguish chamber schematic diagram in the better embodiment two of isolating switch of breaking capacity.
Embodiment
Below in conjunction with accompanying drawing, to above-mentioned being described in more detail with other technology feature and advantage of the present invention.
Referring to shown in Fig. 2 A, it can improve the structural representation of the circuit breaker arc striking sheet of breaking capacity for the present invention; Comparing with arc striking piece 2 of the prior art, described arc striking piece is welded by the first arc striking piece part 23 and the 2nd arc striking piece part 22, and the resistance of the first wherein said arc striking piece part 23 is higher than the resistance of the 2nd arc striking piece part 22. The first described arc striking piece part 23 is positioned at end of incoming cables.
Referring to shown in Fig. 2 B, it can improve the structural representation of the isolating switch of breaking capacity for the present invention; Owing to described arc striking piece 2 creates extension 21; thus make when being short-circuited fault; dynamic contact is separated with rest contact; then owing to the existence of arc striking piece extension 21 extends the length of striking; thus improve a point disconnected ability; to such an extent as to protect the device in housing 10; simultaneously in order to improve breaking capacity; for the center vertical line of described dynamic contact between described extension end and described quiet tactile sheet; thus more directly arc light is incorporated in cease spark cover; further increasing breaking capacity, this is preferably structural allocation.
Referring to shown in Fig. 2 C, it is the enlarged diagram of local B in Fig. 2 A. Can know from figure and find out described arc striking piece extension 21 and the difference of existing arc striking piece 2.
Can reach, at 1 millimeter��30 millimeters, the effect promoting breaking capacity through the extension described in test, wherein when 0-2 millimeter, breaking capacity constantly raises, within the scope of 2 millimeters��7 millimeters, breaking capacity tends towards stability, wherein 6.5 millimeters of breaking capacity are the highest, when extension exceedes certain length, the space for isolating switch inside just has requirement, simultaneously easily and other structural part produce interference, namely stick together, have impact on production efficiency.
Referring to shown in Fig. 2 D, it can improve the structural representation of the better embodiment two of isolating switch of breaking capacity for the present invention, compare with above-described embodiment one, embodiment adds the striking ability in quiet tactile sheet direction, namely at existing cease spark cover, it is made up of the metal arc extinguishing plate superposition of multilayer, recess all offered by usual each layer of arc extinguishing plate, and the improvement of the present embodiment is, dull and stereotyped shape is adopted at cease spark cover one layer of arc extinguishing plate wherein, namely recess (shown in composition graphs 2E) it is not provided with, here it is for the first arc extinguishing plate as dull and stereotyped shape, other layers can also process like this, the first arc extinguishing plate described in simultaneously also to be extended an extension to described quiet tactile sheet direction, and then shorten the striking time in quiet tactile sheet direction, thus improve breaking capacity.
Can reach, at 1 millimeter��15 millimeters, the effect promoting breaking capacity through the extension of the described arc extinguishing plate of test, wherein when 0-2 millimeter, breaking capacity constantly raises, within the scope of 2 millimeters��4 millimeters, breaking capacity tends towards stability, wherein 3 millimeters of breaking capacity are the highest, when extension exceedes certain length, the space for isolating switch inside just has requirement, simultaneously easily and other structural part produce interference, namely stick together, have impact on production efficiency.
Just explanation property for the purpose of the present invention is more than described, but not restrictive, those of ordinary skill in the art understand; when not departing from the spirit and scope that following claims limit, many amendments can be made, change; or equivalence, but all will fall within the scope of protection of the present invention.
Claims (11)
1. one kind can be improved the isolating switch of breaking capacity, comprising: a breaker body, wherein said breaker body comprises: a housing, and be placed in described housing an end of incoming cables, a leading-out terminal and an actuating mechanism, wherein, the on off state of the described breaker body described in actuating mechanism realization; Also comprise: an arc striking piece, it is positioned at the bottom of described actuating mechanism, described arc striking piece has an extension in its bending place, it is characterized in that, described arc striking piece is welded by the first arc striking piece part and the 2nd arc striking piece part, and the resistance of the first wherein said arc striking piece part is higher than the resistance of the 2nd arc striking piece part; The first described arc striking piece part is positioned at end of incoming cables.
2. the isolating switch that can improve breaking capacity according to claim 1, it is characterised in that, described extension length is 2 millimeters��7 millimeters.
3. the isolating switch that can improve breaking capacity according to claim 2, it is characterised in that, described actuating mechanism comprises:
One handle, it has an operating side and is arranged at outside described housing, realizes the break-make control of power line by stirring described handle;
One movable contact spring, its end has a dynamic contact, and it is connected with the first wire introduced by described leading-out terminal;
One coordinated signals block group, it is made up of multiple coordinated signals block, by being hinged and connected, comprising: one end of one first coordinated signals block is connected with described handle, and one end of an end coordinated signals block is connected with the front end of described movable contact spring;
One quiet tactile sheet, it is connected with the 2nd wire introduced by described end of incoming cables.
4. the isolating switch that can improve breaking capacity according to claim 3, it is characterised in that, the center vertical line of described dynamic contact is between described extension end and described quiet tactile sheet.
5. the isolating switch that can improve breaking capacity according to claim 3, it is characterised in that, also comprise a short circuit detecting mechanism, when short trouble produces, it produces a triggering action, comprising:
One iron core, by the coordinated signals block group generation action described in its motion triggers;
One return spring, it is with so that described plunger return.
6. the isolating switch that can improve breaking capacity according to claim 4, it is characterised in that, also comprise: a short-circuit self-locking mechanism, when producing short trouble, it makes described isolating switch be in self-locking state, comprising:
One hook-type trigger member, it is coupling in described housing;
One from lock section, itself and described hook-type trigger member phase clasp joint, and comprises a compression spring, and described is corresponding with the hole on described housing from the upper end of lock section; The described gear that has from lock section supports end, and it is corresponding with an extension of described handle.
7. the isolating switch that can improve breaking capacity according to claim 5, it is characterized in that, also comprise: a cease spark cover, it is placed in described short-circuit detecting mechanism bottom, it is laminated by some arc extinguishing plates, and the smooth section that described arc striking piece has extends to bottom described cease spark cover.
8. the isolating switch that can improve breaking capacity according to claim 7, it is characterised in that, arc extinguishing plate is dull and stereotyped shape one of in described cease spark cover, and extends an extension to described quiet tactile sheet place.
9. the isolating switch that can improve breaking capacity according to claim 8, it is characterised in that, the extension length of described described dull and stereotyped shape arc extinguishing plate is 1 millimeter��15 millimeters.
10. the isolating switch that can improve breaking capacity according to claim 9, it is characterised in that, the extension length of described dull and stereotyped shape arc extinguishing plate is 2 millimeters��4 millimeters.
11. isolating switchs that can improve breaking capacity according to claim 7, it is characterized in that, also comprise: a bimetallic strip, it is connected with the first wire of described leading-out terminal, its one end is connected with described end coordinated signals block, when temperature is too high, described bimetallic strip is bending thus makes described end coordinated signals block action, and then makes described breaker body produce open circuit action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210093234.6A CN102760621B (en) | 2012-03-23 | 2012-03-23 | A kind of isolating switch that can improve breaking capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210093234.6A CN102760621B (en) | 2012-03-23 | 2012-03-23 | A kind of isolating switch that can improve breaking capacity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102760621A CN102760621A (en) | 2012-10-31 |
| CN102760621B true CN102760621B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210093234.6A Active CN102760621B (en) | 2012-03-23 | 2012-03-23 | A kind of isolating switch that can improve breaking capacity |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620366Y (en) * | 2002-05-09 | 2004-06-09 | 九川电器有限公司 | Residual voltage, residual arc conducting plate |
| CN101847553A (en) * | 2010-06-07 | 2010-09-29 | 湖北盛佳电器设备有限公司 | Breaker capable of improving disconnecting capacity |
| CN101996827A (en) * | 2009-08-28 | 2011-03-30 | 李文俊 | Leakage protection circuit breaker with arc extinguishing chamber at both poles |
| CN102024633A (en) * | 2010-12-03 | 2011-04-20 | 常熟开关制造有限公司(原常熟开关厂） | Arc striking/extinguishing mechanism of low-voltage circuit breaker |
| CN201918328U (en) * | 2011-01-10 | 2011-08-03 | 上海人民企业集团温州电器有限公司 | Arc striking structure of miniature circuit breaker |
| CN202513110U (en) * | 2012-03-23 | 2012-10-31 | 湖北盛佳电器设备有限公司 | Breaker capable of improving breaking capacity |
-
2012
- 2012-03-23 CN CN201210093234.6A patent/CN102760621B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620366Y (en) * | 2002-05-09 | 2004-06-09 | 九川电器有限公司 | Residual voltage, residual arc conducting plate |
| CN101996827A (en) * | 2009-08-28 | 2011-03-30 | 李文俊 | Leakage protection circuit breaker with arc extinguishing chamber at both poles |
| CN101847553A (en) * | 2010-06-07 | 2010-09-29 | 湖北盛佳电器设备有限公司 | Breaker capable of improving disconnecting capacity |
| CN102024633A (en) * | 2010-12-03 | 2011-04-20 | 常熟开关制造有限公司(原常熟开关厂） | Arc striking/extinguishing mechanism of low-voltage circuit breaker |
| CN201918328U (en) * | 2011-01-10 | 2011-08-03 | 上海人民企业集团温州电器有限公司 | Arc striking structure of miniature circuit breaker |
| CN202513110U (en) * | 2012-03-23 | 2012-10-31 | 湖北盛佳电器设备有限公司 | Breaker capable of improving breaking capacity |
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| Publication number | Publication date |
|---|---|
| CN102760621A (en) | 2012-10-31 |
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Effective date of registration: 20190417 Address after: 430040 No. 8 (10) Ruihe Sixth Road, Ruihe Office, Dongxihu District, Wuhan City, Hubei Province Patentee after: HUBEI ZHIGUANG TECHNOLOGY CO., LTD. Address before: 430023 Shengjia Co., Ltd. on the second floor of No. 6 Pioneering Center, Jiangxing Road, Hankou, Wuhan, Hubei Province Co-patentee before: Wan Jiasheng Patentee before: Hubei Shengjia Electrical Equipment Co., Ltd. |
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