CN101847553A - Breaker capable of improving disconnecting capacity - Google Patents
Breaker capable of improving disconnecting capacity Download PDFInfo
- Publication number
- CN101847553A CN101847553A CN201010204517A CN201010204517A CN101847553A CN 101847553 A CN101847553 A CN 101847553A CN 201010204517 A CN201010204517 A CN 201010204517A CN 201010204517 A CN201010204517 A CN 201010204517A CN 101847553 A CN101847553 A CN 101847553A
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- Prior art keywords
- circuit breaker
- breaking capacity
- capacity according
- improve breaking
- millimeters
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a breaker capable of improving disconnecting capacity, which comprises a breaker body, wherein the breaker body comprises a shell, and an incoming line terminal, an outgoing line terminal and an actuating mechanism, wherein the actuating mechanism realizes the connecting and disconnecting states of the breaker body. The breaker also comprises an arc starting sheet which is positioned under the actuating mechanism and is provided with an extension section at the bending part thereof.
Description
Technical field
A kind of circuit breaker that the present invention relates to particularly a kind ofly can improve circuit breaker produces the current value ability of the action institute striking of opening circuit when short trouble takes place technological improvement.
Background technology
Switch switchgear for power department is the assurance Electrical Safety, carry out circuit switches imperative equipment, and its internal structure of existing circuit breaker sees also shown in Figure 1, and Figure 1A is the cutaway view of existing circuit breaker; It comprises: a housing 10, and adopt the insulation fire proofing to make, portion is provided with following structure within it:
One end of incoming cables 131 and a leading-out terminal 132 are in order to be linked in the power line; One actuating mechanism, it comprises: one handle 11, it has an operating side and is arranged at outside the described housing 10, carries out the break-make control of circuit; One movable contact spring 121, its end has a moving contact; One interlock controll block group 12, it is made up of a plurality of STATEMENT OF FEDERALLY SPONSORED, rotate by the axle that is arranged in the described housing 10, an end of the STATEMENT OF FEDERALLY SPONSORED that it is gone up most is connected with described handle 11, and the end of bottom STATEMENT OF FEDERALLY SPONSORED is connected with the front end of described movable contact spring 121; One fixed contact 122, it is connected with described end of incoming cables 131, when the described interlock controll block group 12 of turn handle 11 pulling, thus cause moving contact and fixed contact deciliter, can realize among the application that the circuit breaker of basic on-off function is referred to as breaker body.
Also comprise a short circuit detecting mechanism, when short trouble produced, it produced a trigger action, and it comprises:
One iron core 4, it is positioned at described housing 10, it is corresponding with the end interlock controll block in the described interlock controll block group 12 by an angled slide block, when short circuit takes place, the high-intensity magnetic field that produces attracts described iron core motion, thereby, thereby make described breaker body produce the action of opening circuit by the interlock of the end in the described interlock controll block of described angled slide block pushing tow group controll block; Also comprise: a back-moving spring, after breaker body produced the action of opening circuit, outage caused that magnetic field disappears, thus described back-moving spring leans action thereby removed to described terminal interlock controll block with so that described iron core resets.
Also comprise: a short-circuit self-locking mechanism, when producing short trouble, it makes described circuit breaker be in self-locking state, if the user does not remove self-locking state, then breaker body can't normally close a floodgate, described short-circuit self-locking mechanism comprises:
One hook-type triggers part 31, and it is coupling in described housing 10, can form around the rotating shaft of correspondence to rotate;
One from the lock section 32, and it triggers part 31 clasp joint mutually with described hook-type, and comprises a compression spring 321, and described upper end from lock section 32 is corresponding with the hole on the described housing 10; Described 32 have a retaining and support end from the lock section, and its extension with described handle 11 is corresponding.
Also comprise: a bimetal leaf 51, it is connected with first lead of described leading-out terminal 132, the one end is connected with described terminal interlock controll block, when temperature is too high, thereby described bimetal leaf 51 bendings make the action of described terminal interlock controll block, and then make described breaker body produce the action of opening circuit.
Also comprise: an arc-extinguish chamber 41 is in order to eliminate the destruction of electric arc to circuit breaker, see also shown in Figure 1B and Fig. 1 C, it mainly is the displaying of carrying out at the metal striking sheet 2 among Figure 1A, and it has the bottom that a smooth section extends to described arc-extinguish chamber 41 described striking sheet 2.
But existing circuit breaker still exists in short trouble when taking place, and breaker body sound contact separation causes arc light that the device of enclosure interior is caused the defective of burn, and promptly breaking capacity is low.
In view of above-mentioned defective, creator of the present invention has obtained this creation finally through long term studies and test.
Summary of the invention
The objective of the invention is to, a kind of circuit breaker that can improve breaking capacity is provided, in order to overcome the existing low defective of circuit breaker breaking capacity.
The technical solution used in the present invention is for achieving the above object, a kind of circuit breaker that can improve breaking capacity is provided, it comprises: a breaker body, wherein said breaker body comprises: a housing, and place an end of incoming cables in the described housing, a leading-out terminal and an actuating mechanism, wherein, described actuating mechanism realizes the on off operating mode of described breaker body; It is characterized in that, also comprise: a striking sheet, it is positioned at the bottom of described actuating mechanism, and described striking sheet has an extension in its bending place.
Wherein, described extension length is 1 millimeter～30 millimeters.
Preferable, 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 the described housing, realizes the break-make control of power line by stirring described handle;
One movable contact spring, its end has a moving contact, and it is connected with first lead of being introduced by described leading-out terminal;
One interlock controll block group, it is made up of a plurality of interlock controll blocks, by being hinged and connected, comprising: an end of one first interlock controll block is connected with described handle, and a link end of controll block of an end is connected with the front end of described movable contact spring;
One static contact, it is connected with second lead of being introduced by described end of incoming cables.
Preferable, the center vertical line of described moving contact is between described extension end and described static contact.
Preferable, also comprise a short circuit detecting mechanism, when short trouble produced, it produced a trigger action, and it comprises:
One iron core produces action by the described interlock controll block of its motion triggers group;
One back-moving spring, its with so that described iron core reset.
Preferable, also comprise: a short-circuit self-locking mechanism, when producing short trouble, it makes described circuit breaker be in self-locking state, and it comprises:
One hook-type triggers part, and it is coupling in described housing;
One from the lock section, and it triggers part clasp joint mutually with described hook-type, and comprises a compression spring, and described upper end from the lock section is corresponding with the hole on the described housing; Described have a retaining to end from the lock section, its extension with described handle is corresponding.
Preferable, also comprise: an arc-extinguish chamber, it places described short circuit detecting mechanism bottom, and it is to have some arc extinguishing boards to be laminated, and the smooth section that described striking sheet has extends to described arc-extinguish chamber bottom.
Wherein, arc extinguishing board is a tabular one of in the described arc-extinguish chamber, and extends an extension to described static contact place.
Wherein, the extension length of described described tabular arc extinguishing board is 1 millimeter～15 millimeters.
Preferable, the extension length of described tabular arc extinguishing board is 2 millimeters～4 millimeters.
Preferable, also comprise: a bimetal leaf, it is connected with first lead of described leading-out terminal, the one end is connected with described terminal interlock controll block, when temperature is too high, make the action of described terminal interlock controll block thereby described bimetal leaf is crooked, and then make described breaker body produce the action of opening circuit.
Compared with the prior art, beneficial effect of the present invention is, the breaking capacity of breaker body is provided when short trouble takes place.
Description of drawings
Figure 1A is the cutaway view of existing circuit breaker;
Figure 1B is the enlarged diagram of local A among Figure 1A;
Fig. 1 C is the structural representation of the striking sheet among Figure 1A;
Fig. 2 A can improve the structural representation of the circuit breaker preferred embodiment one striking sheet of breaking capacity for the present invention;
Fig. 2 B can improve the structural representation of the circuit breaker preferred embodiment one of breaking capacity for the present invention;
Fig. 2 C is the enlarged diagram of local B among Fig. 2 A;
Fig. 2 D can improve the structural representation of the circuit breaker preferred embodiment two of breaking capacity for the present invention;
Fig. 2 E can improve arc-extinguish chamber schematic diagram in the circuit breaker preferred embodiment two of breaking capacity for the present invention.
Embodiment
Below in conjunction with accompanying drawing, to this novel above-mentionedly is described in more detail with other technical characterictic and advantage.
See also shown in Fig. 2 A, it can improve the structural representation of the circuit breaker striking sheet of breaking capacity for the present invention; Compare with striking sheet 2 of the prior art, it has the bending place that an extension 21 is positioned at described striking sheet 2.
See also shown in Fig. 2 B, it can improve the structural representation of the circuit breaker of breaking capacity for the present invention; Because described striking sheet 2 has produced extension 21; thereby make when being short-circuited fault; moving contact separates with fixed contact; then because the existence of striking sheet extension 21 has prolonged the length of striking; thereby improved the ability of disjunction; to such an extent as to protected the device in the housing 10; simultaneously in order to improve breaking capacity; for the center vertical line of described moving contact in described extension between the terminal and described static contact; thereby more direct arc light is incorporated in the arc-extinguish chamber; further improved breaking capacity, this is preferable structural arrangements.
See also shown in Fig. 2 C, it is the enlarged diagram of local B among Fig. 2 A.From figure, can know the difference of finding out described striking sheet extension 21 and existing striking sheet 2.
Can both reach the effect that promotes breaking capacity through the described extension of overtesting at 1 millimeter～30 millimeters, wherein breaking capacity constantly raises when the 0-2 millimeter, breaking capacity tends towards stability in 2 millimeters～7 millimeters scopes, wherein 6.5 millimeters breaking capacity are the highest, when the extension surpasses certain-length, just have requirement for the circuit breaker volume inside, simultaneously easily and other structural member produce interference, promptly stick together, influenced production efficiency.
See also shown in Fig. 2 D, it can improve the structural representation of the circuit breaker preferred embodiment two of breaking capacity for the present invention; Compare with the foregoing description one, present embodiment has increased the striking ability of static contact direction, promptly at existing arc-extinguish chamber, its metal arc extinguishing board stack by multilayer is formed, usually each layer arc extinguishing board all offers recess, and the improvement of present embodiment is, adopt tabular at arc-extinguish chamber one deck arc extinguishing board wherein, promptly be not provided with recess (shown in Fig. 2 E), here be to be that tabular is an example with first arc extinguishing board, other layers also can be handled like this, and described first arc extinguishing board also will extend an extension to described static contact direction simultaneously, and then shorten striking time of static contact direction, thereby improve breaking capacity.
Extension through the described arc extinguishing board of overtesting can both reach the effect that promotes breaking capacity at 1 millimeter～15 millimeters, wherein breaking capacity constantly raises when the 0-2 millimeter, breaking capacity tends towards stability in 2 millimeters～4 millimeters scopes, wherein 3 millimeters breaking capacity are the highest, when the extension surpasses certain-length, just have requirement for the circuit breaker volume inside, simultaneously easily and other structural member produce interference, promptly stick together, influenced production efficiency.
More than explanation is novel just illustrative for this, and nonrestrictive, those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited, can make many modifications, change; or equivalence, but all will fall within the scope of protection of the present invention.
Claims (12)
1. circuit breaker that can improve breaking capacity, it comprises: a breaker body, wherein said breaker body comprises: a housing, and place an end of incoming cables in the described housing, a leading-out terminal and an actuating mechanism, wherein, described actuating mechanism realizes the on off operating mode of described breaker body; It is characterized in that, also comprise: a striking sheet, it is positioned at the bottom of described actuating mechanism, and described striking sheet has an extension in its bending place.
2. the circuit breaker that can improve breaking capacity according to claim 1 is characterized in that, described extension length is 1 millimeter～30 millimeters.
3. the circuit breaker that can improve breaking capacity according to claim 2 is characterized in that, described extension length is 2 millimeters～7 millimeters.
4. according to claim 2 or the 3 described circuit breakers that can improve breaking capacity, it is characterized in that described actuating mechanism comprises:
One handle, it has an operating side and is arranged at outside the described housing, realizes the break-make control of power line by stirring described handle;
One movable contact spring, its end has a moving contact, and it is connected with first lead of being introduced by described leading-out terminal;
One interlock controll block group, it is made up of a plurality of interlock controll blocks, by being hinged and connected, comprising: an end of one first interlock controll block is connected with described handle, and a link end of controll block of an end is connected with the front end of described movable contact spring;
One static contact, it is connected with second lead of being introduced by described end of incoming cables.
5. the circuit breaker that can improve breaking capacity according to claim 3 is characterized in that, the center vertical line of described moving contact is between described extension end and described static contact.
6. the circuit breaker that can improve breaking capacity according to claim 4 is characterized in that, also comprises a short circuit detecting mechanism, and when short trouble produced, it produced a trigger action, and it comprises:
One iron core produces action by the described interlock controll block of its motion triggers group;
One back-moving spring, its with so that described iron core reset.
7. the circuit breaker that can improve breaking capacity according to claim 5 is characterized in that, also comprises: a short-circuit self-locking mechanism, and when producing short trouble, it makes described circuit breaker be in self-locking state, and it comprises:
One hook-type triggers part, and it is coupling in described housing;
One from the lock section, and it triggers part clasp joint mutually with described hook-type, and comprises a compression spring, and described upper end from the lock section is corresponding with the hole on the described housing; Described have a retaining to end from the lock section, its extension with described handle is corresponding.
8. the circuit breaker that can improve breaking capacity according to claim 4, it is characterized in that, also comprise: an arc-extinguish chamber, it places described short circuit detecting mechanism bottom, it is to have some arc extinguishing boards to be laminated, and the smooth section that described striking sheet has extends to described arc-extinguish chamber bottom.
9. the circuit breaker that can improve breaking capacity according to claim 8 is characterized in that, arc extinguishing board is a tabular one of in the described arc-extinguish chamber, and extends an extension to described static contact place.
10. the circuit breaker that can improve breaking capacity according to claim 9 is characterized in that, the extension length of described described tabular arc extinguishing board is 1 millimeter～15 millimeters.
11. the circuit breaker that can improve breaking capacity according to claim 10 is characterized in that, the extension length of described tabular arc extinguishing board is 2 millimeters～4 millimeters.
12. the circuit breaker that can improve breaking capacity according to claim 8, it is characterized in that, also comprise: a bimetal leaf, it is connected with first lead of described leading-out terminal, the one end is connected with described terminal interlock controll block, when temperature is too high, makes the action of described terminal interlock controll block thereby described bimetal leaf is crooked, and then make described breaker body produce the action of opening circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010204517A CN101847553A (en) | 2010-06-07 | 2010-06-07 | Breaker capable of improving disconnecting capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010204517A CN101847553A (en) | 2010-06-07 | 2010-06-07 | Breaker capable of improving disconnecting capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101847553A true CN101847553A (en) | 2010-09-29 |
Family
ID=42772117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010204517A Pending CN101847553A (en) | 2010-06-07 | 2010-06-07 | Breaker capable of improving disconnecting capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101847553A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102760621A (en) * | 2012-03-23 | 2012-10-31 | 湖北盛佳电器设备有限公司 | Circuit breaker capable of improving breaking capacity |
| CN108269718A (en) * | 2018-01-17 | 2018-07-10 | 安徽中骄智能科技有限公司 | A kind of electrical contact separation and arc extinguishing structure device based on heat transfer driving |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1494727A (en) * | 2002-01-31 | 2004-05-05 | 三菱电机株式会社 | Automatic air circuit breaker |
| DE10230094B4 (en) * | 2002-07-04 | 2004-06-24 | Siemens Ag | Arc-extinguishing device |
| CN200972846Y (en) * | 2006-11-01 | 2007-11-07 | 天正集团有限公司 | Arc striking device of small circuit breaker |
| CN201112303Y (en) * | 2007-09-27 | 2008-09-10 | 温州奥来电器有限公司 | Accumulated energy type high subsection small circuit breaker |
| CN201117605Y (en) * | 2007-09-11 | 2008-09-17 | 施耐德电器工业公司 | Breaker |
| CN101620957A (en) * | 2008-07-04 | 2010-01-06 | 湖北盛佳电器设备有限公司 | Breaker with short circuit self-locking function |
| CN101677049A (en) * | 2008-09-19 | 2010-03-24 | 郑春开 | Improved circuit breaker |
| CN201886995U (en) * | 2010-06-07 | 2011-06-29 | 湖北盛佳电器设备有限公司 | Circuit breaker capable of increasing the breaking capacity |
-
2010
- 2010-06-07 CN CN201010204517A patent/CN101847553A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1494727A (en) * | 2002-01-31 | 2004-05-05 | 三菱电机株式会社 | Automatic air circuit breaker |
| DE10230094B4 (en) * | 2002-07-04 | 2004-06-24 | Siemens Ag | Arc-extinguishing device |
| CN200972846Y (en) * | 2006-11-01 | 2007-11-07 | 天正集团有限公司 | Arc striking device of small circuit breaker |
| CN201117605Y (en) * | 2007-09-11 | 2008-09-17 | 施耐德电器工业公司 | Breaker |
| CN201112303Y (en) * | 2007-09-27 | 2008-09-10 | 温州奥来电器有限公司 | Accumulated energy type high subsection small circuit breaker |
| CN101620957A (en) * | 2008-07-04 | 2010-01-06 | 湖北盛佳电器设备有限公司 | Breaker with short circuit self-locking function |
| CN101677049A (en) * | 2008-09-19 | 2010-03-24 | 郑春开 | Improved circuit breaker |
| CN201886995U (en) * | 2010-06-07 | 2011-06-29 | 湖北盛佳电器设备有限公司 | Circuit breaker capable of increasing the breaking capacity |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102760621A (en) * | 2012-03-23 | 2012-10-31 | 湖北盛佳电器设备有限公司 | Circuit breaker capable of improving breaking capacity |
| CN102760621B (en) * | 2012-03-23 | 2016-06-08 | 湖北盛佳电器设备有限公司 | A kind of isolating switch that can improve breaking capacity |
| CN108269718A (en) * | 2018-01-17 | 2018-07-10 | 安徽中骄智能科技有限公司 | A kind of electrical contact separation and arc extinguishing structure device based on heat transfer driving |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100929 |
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| RJ01 | Rejection of invention patent application after publication |