CN2924777Y - Arc-quenching chamber, are-quenching system for miniature circuit breaker and miniature circuit breaker - Google Patents
Arc-quenching chamber, are-quenching system for miniature circuit breaker and miniature circuit breaker Download PDFInfo
- Publication number
- CN2924777Y CN2924777Y CN 200520143035 CN200520143035U CN2924777Y CN 2924777 Y CN2924777 Y CN 2924777Y CN 200520143035 CN200520143035 CN 200520143035 CN 200520143035 U CN200520143035 U CN 200520143035U CN 2924777 Y CN2924777 Y CN 2924777Y
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- China
- Prior art keywords
- circuit breaker
- miniature circuit
- arc
- control device
- metal gate
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- Expired - Lifetime
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Abstract
The utility model relates to an arc extinguishing chamber used for miniature circuit breakers, which includes a plurality of metal gates and at least one side board which is made from the insulating materials; the metal gates are assembled together through the side wall, wherein, a reversed 'V'-shaped concave opening is formed on the metal gates respectively. The utility model also relates to an arc extinguishing system which includes the arc extinguishing chamber and a miniature breaker which includes the arc extinguishing system. The utility model can significantly improve the drawing capacity for the arc, thereby having the strong and reliable arc extinguishing capacity; the utility model can greatly enhance the breaking capacity of the miniature breaker; and the utility model can reduce the cost of the miniature breaker and does not need to add the complicated assembly process additionally.
Description
Technical field
The utility model relates to a kind of arc control device that are used for miniature circuit breaker, comprises the arc quenching system of described arc control device and the miniature circuit breaker that comprises described arc quenching system.
Background technology
Miniature circuit breaker is to be generally used for exchanging 50Hz or 60Hz, rated voltage 1200V and following, a kind of panel switches in dc rated voltage 1500V and the following low-voltage distribution system, it can connect, carry and branch deenergizing normal running conditions under electric current, also can regulation such as circuit non-normal working conditions such as overload, short circuits under connect, carry certain hour and breaking current.As shown in Figure 1, in order to realize its function, miniature circuit breaker generally comprises: be arranged on input wires terminal 2 and output wiring terminal 3 in the shell 1; Be arranged on the operating mechanism 4 between input wires terminal 2 and the output wiring terminal 3, can manually connect or disconnect miniature circuit breaker by pulling operating mechanism 4; Be arranged on the Re Tuo system 5 that is used under the situation of current overload, making the miniature circuit breaker disconnection between input wires terminal 2 and the output wiring terminal 3; Be arranged on the magnetic that is used between input wires terminal 2 and the output wiring terminal 3 miniature circuit breaker is disconnected rapidly and take off system 6; Be used for when open circuit, eliminating the arc quenching system 7 of electric arc; And be arranged on contact 8 on operating mechanism 4 and the arc quenching system 7, thereby contact 8 be in contact with one another or throw off and be switched on or switched off circuit by pulling operating mechanism 4.The function of miniature circuit breaker is: 1) under normal circumstances, do not connect continually, open circuit; 2) when faults such as circuit etc. transships, short circuit, can automatic shutdown circuit, play a protective role.
When the miniature circuit breaker open circuit, if when being disconnected the electric current (voltage) of circuit and surpassing a certain numerical value (according to the material difference of contact, its value is also different), will produce electric arc between the contact 8, this can make prolong the opening time of circuit, even can not disconnect, and causes serious accident, therefore, the performance of 7 pairs of miniature circuit breakers of arc quenching system is most important.Fig. 2 has shown the typical structure of the arc quenching system of prior art.The arc quenching system 7 of prior art generally includes static contact seat 9, is arranged on the arc control device 10 of static contact seat 9 downsides and the run-on tab 11 that is oppositely arranged with static contact seat 9.Fig. 3 to 5 has shown the typical structure of the arc control device 10 of prior art.The arc control device 10 of prior art generally include and are formed with a plurality of metal gate sheets 12 that are roughly " people " shape recess 13 and at least one side plate 14 of being made by insulating material on it, on two arms 15 of each metal gate sheet 12, be formed with protuberance 16 respectively, on side plate 14, be formed with a plurality of holes 17, by a plurality of metal gate sheets 12 being fitted together abreast in the hole 17 that the protuberance on the metal gate sheet 12 16 is inserted on the side plate 14, form arc control device 10.When described circuit breaker divides deenergizing to produce electric arc, arc current space around produces magnetic flux, with 12 magnetization of arc control device grid sheet, thereby variation has taken place in its magnetic flux path, and magnetized grid sector-meeting produces a kind of electromagnetic attraction electric arc is drawn in arc control device, and electric arc enters the short arc that is divided into many series connection behind the arc control device by the grid sheet, and by cooling to electric arc, arc resistance increases, arc voltage rises thereby make, and when arc voltage reached certain value, electric arc will be extinguished.In Fig. 6 and 7, represented arc path trend in the arc control device of prior art with arrow and respectively, as can be seen from the figure, electric arc forms straight path.Though this arc quenching system also can provide the ability of arc extinguishing, its breaking capacity is difficult to enlarge, and in order further to strengthen the breaking capacity of circuit breaker, improves its arc extinguishing ability, generally need take other auxiliary arc-control device, thereby needs to improve manufacturing cost.
Therefore, need provide a kind of improved arc control device that are used for miniature circuit breaker.
The utility model content
The purpose of this utility model provides a kind of arc control device that are used for miniature circuit breaker, thereby its elongation ability that can improve significantly electric arc has very strong and reliable arc extinguishing ability; And a kind of arc quenching system and miniature circuit breaker are provided, make it possible to improve significantly miniature circuit breaker breaking capacity, can reduce the cost of miniature circuit breaker and not need additionally to increase complicated packaging technology.
According to one side of the present utility model, a kind of arc control device that are used for miniature circuit breaker are provided, comprise a plurality of metal gate sheets and at least one side plate of being made by insulating material, described metal gate sheet fits together by described side plate, wherein, be formed with " going into " shape recess on the described metal gate sheet.
According on the other hand of the present utility model, a kind of arc quenching system that is used for miniature circuit breaker is provided, described arc quenching system comprises above-mentioned arc control device.
According to another aspect of the present utility model, a kind of miniature circuit breaker is provided, described miniature circuit breaker comprises above-mentioned arc quenching system.
Description of drawings
By detailed description, will become more obviously and easy to understand according to the feature and advantage that are used for arc control device, arc quenching system and the miniature circuit breaker of miniature circuit breaker of the present utility model below in conjunction with accompanying drawing.Wherein:
Fig. 1 has schematically shown the structure of miniature circuit breaker;
Fig. 2 has schematically shown the arc quenching system of prior art;
Fig. 3 is the decomposition diagram that schematically shows the prior art arc control device;
Fig. 4 is the front view that schematically shows the prior art arc control device;
Fig. 5 is the end view that schematically shows the prior art arc control device;
Fig. 6 is the front view that schematically shows the prior art arc control device, has wherein represented the electric arc trend in the arc chamber with arrow;
Fig. 7 is the end view that schematically shows the prior art arc control device, has wherein represented the electric arc trend in the arc chamber with ;
Fig. 8 is the decomposition diagram that schematically shows according to the utility model arc control device;
Fig. 9 is the front view of the arc control device of displayed map 8 schematically;
Figure 10 is the end view of the arc control device of displayed map 8 schematically;
Figure 11 is the front view of the arc control device of displayed map 8 schematically, has wherein represented the electric arc trend in the arc chamber with arrow;
Figure 12 is the end view of the arc control device of displayed map 8 schematically, has wherein represented the electric arc trend in the arc chamber with arrow and ; And
Figure 13 is the schematic diagram that shows the miniature circuit breaker that comprises the utility model arc control device.
Embodiment
Describe first embodiment of the present utility model in detail below in conjunction with accompanying drawing 8-12.
Shown in Fig. 8-10, usually also comprise a plurality of metal gate sheets 22 and at least one side plate 24 of making by insulating material according to arc control device 20 of the present utility model, on two arms 25 of each metal gate sheet 22, be formed with protuberance 26 respectively, on side plate 24, be formed with a plurality of holes 27, can be with a plurality of metal gate sheet 22 parallel and turn up the soil at interval and fit together by the protuberance on the metal gate sheet 22 26 being inserted in the hole 27 on the side plates 24, form arc control device 20.
Different with the arc control device of prior art is to be formed with " going into " shape recess 23 on the metal gate sheet 22 according to arc control device 20 of the present utility model.When assembling metal grid sheet 22, make at least some " go into " blind end 28 of shape recess 23 towards the different directions setting.Preferably, shown in Fig. 8-10, the blind end 28 of feasible " going into " shape recess 23 of adjacent two metal gate sheets 22 arbitrarily is towards the rightabout setting.The size of the quantity of metal gate sheet 22 and " going into " shape recess 23 can change according to concrete application.
In Figure 11 and 12, represented according to arc path trend in the arc control device 20 of the present utility model with arrow and respectively.As can be seen from the figure, electric arc forms zigzag path in arc control device 20, and therefore, the electric arc elongation ability of arc control device 20 is significantly improved, thereby the arc extinguishing ability of arc control device is improved.
Figure 13 has shown the miniature circuit breaker that comprises the utility model arc control device 20.This miniature circuit breaker also can comprise: be arranged on input wires terminal 2 and output wiring terminal 3 in the shell 1; Be arranged on the operating mechanism 4 between input wires terminal 2 and the output wiring terminal 3, can manually connect or disconnect miniature circuit breaker by pulling operating mechanism 4; Be arranged on the Re Tuo system 5 that is used under the situation of current overload, making the miniature circuit breaker disconnection between input wires terminal 2 and the output wiring terminal 3; Be arranged on the magnetic that is used between input wires terminal 2 and the output wiring terminal 3 miniature circuit breaker is disconnected rapidly and take off system 6; Be used for when open circuit, eliminating the arc quenching system 7 of electric arc; And be arranged on contact 8 on operating mechanism 4 and the arc quenching system 7, contact 8 is in contact with one another connect circuit by pulling operating mechanism 4.Wherein, arc quenching system 7 can comprise static contact seat 9, be arranged on the arc control device 20 of static contact seat 9 downsides and the run-on tab 11 that is oppositely arranged with static contact seat 9.Use the utility model arc control device 20 circuit breaker breaking capacity thereby also significantly improved.Certainly, also can constitute according to miniature circuit breaker of the present utility model by the part in the said modules.
On the other hand, by the improvement of the utility model to arc control device metal gate sheet recess shape, do not need to increase other auxiliary arc extinction device, just can realize the significantly improving of breaking capacity of circuit breaker, can competitive cost thereby make according to miniature circuit breaker of the present utility model.The composed component kind of the utility model arc control device is few, manufacturing and simple and convenient assembly, and can manually or automatically assemble.
More than preferred embodiment of the present utility model is described, but one skilled in the art will appreciate that under the situation that does not break away from the utility model scope, can carry out various modifications, replacement etc. to the utility model.
Claims (18)
1, a kind of arc control device that are used for miniature circuit breaker comprise a plurality of metal gate sheets and at least one side plate of being made by insulating material, and described metal gate sheet fits together by described side plate, it is characterized in that, is formed with " going into " shape recess on the described metal gate sheet.
2, arc control device according to claim 1 is characterized in that the blind end of " going into " shape recess of at least some described metal gate sheets is towards the different directions setting.
3, arc control device according to claim 1 is characterized in that the blind end of " going into " shape recess of any adjacent two the metal gate sheets in the described metal gate sheet is towards the rightabout setting.
4, arc control device according to claim 1 is characterized in that described metal gate sheet is turned up the soil at interval and fitted together.
5, arc control device according to claim 1 is characterized in that described metal gate sheet fits together in parallel to each other.
6, arc control device according to claim 1 is characterized in that, described metal gate sheet is parallel to each other and turns up the soil at interval and fits together.
7, arc control device according to claim 1 is characterized in that, are formed with protuberance on the described metal gate sheet, form porosely on the described side plate, by described protuberance is inserted in the described hole described metal gate sheet are fitted together.
8, a kind of arc quenching system that is used for miniature circuit breaker, described arc quenching system comprises arc control device, described arc control device comprise a plurality of metal gate sheets and at least one side plate of being made by insulating material, described metal gate sheet fits together by described side plate, it is characterized in that, be formed with " going into " shape recess on the described metal gate sheet.
9, as arc quenching system as described in the claim 8, it is characterized in that described arc quenching system also comprises static contact seat and run-on tab.
10, as arc quenching system as described in the claim 9, it is characterized in that described arc control device are arranged on the static contact seat downside.
11, as arc quenching system as described in the claim 9, it is characterized in that described run-on tab and described static contact seat relatively are provided with.
12, a kind of miniature circuit breaker, described miniature circuit breaker comprises arc quenching system, described arc quenching system comprises arc control device, described arc control device comprise a plurality of metal gate sheets and at least one side plate of being made by insulating material, described metal gate sheet fits together by described side plate, it is characterized in that, be formed with " going into " shape recess on the described metal gate sheet.
13, as miniature circuit breaker as described in the claim 12, it is characterized in that described arc quenching system also comprises static contact seat and run-on tab.
14, as miniature circuit breaker as described in the claim 13, it is characterized in that described arc control device are arranged on the static contact seat downside.
15, as miniature circuit breaker as described in the claim 13, it is characterized in that described run-on tab and described static contact seat relatively are provided with.
As miniature circuit breaker as described in the claim 12, it is characterized in that 16, described miniature circuit breaker also comprises and is arranged on the operating mechanism that is used for manually connecting or disconnecting miniature circuit breaker between input wires terminal and the output wiring terminal.
As miniature circuit breaker as described in the claim 12, it is characterized in that 17, described miniature circuit breaker also comprises being arranged on and is used for Re Tuo system that miniature circuit breaker is disconnected between input wires terminal and the output wiring terminal.
As miniature circuit breaker as described in the claim 12, it is characterized in that 18, described miniature circuit breaker comprises that also being arranged on the magnetic that is used between input wires terminal and the output wiring terminal miniature circuit breaker is disconnected rapidly takes off system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143035 CN2924777Y (en) | 2005-12-05 | 2005-12-05 | Arc-quenching chamber, are-quenching system for miniature circuit breaker and miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143035 CN2924777Y (en) | 2005-12-05 | 2005-12-05 | Arc-quenching chamber, are-quenching system for miniature circuit breaker and miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2924777Y true CN2924777Y (en) | 2007-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520143035 Expired - Lifetime CN2924777Y (en) | 2005-12-05 | 2005-12-05 | Arc-quenching chamber, are-quenching system for miniature circuit breaker and miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2924777Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157312A (en) * | 2011-03-21 | 2011-08-17 | 常熟开关制造有限公司(原常熟开关厂） | Arc extinguishing device for miniature circuit breaker |
| CN102832083A (en) * | 2011-06-16 | 2012-12-19 | 上海电器陶瓷厂有限公司 | Arc extinguish chamber of miniature circuit breaker |
-
2005
- 2005-12-05 CN CN 200520143035 patent/CN2924777Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157312A (en) * | 2011-03-21 | 2011-08-17 | 常熟开关制造有限公司(原常熟开关厂） | Arc extinguishing device for miniature circuit breaker |
| CN102157312B (en) * | 2011-03-21 | 2012-12-26 | 常熟开关制造有限公司(原常熟开关厂） | Arc extinguishing device for miniature circuit breaker |
| CN102832083A (en) * | 2011-06-16 | 2012-12-19 | 上海电器陶瓷厂有限公司 | Arc extinguish chamber of miniature circuit breaker |
| CN102832083B (en) * | 2011-06-16 | 2015-06-10 | 上海电器陶瓷厂有限公司 | Arc extinguish chamber of miniature circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070718 |
|
| EXPY | Termination of patent right or utility model |