CN201478153U - Low-voltage circuit breaker - Google Patents
Low-voltage circuit breaker Download PDFInfo
- Publication number
- CN201478153U CN201478153U CN2009201702858U CN200920170285U CN201478153U CN 201478153 U CN201478153 U CN 201478153U CN 2009201702858 U CN2009201702858 U CN 2009201702858U CN 200920170285 U CN200920170285 U CN 200920170285U CN 201478153 U CN201478153 U CN 201478153U
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- CN
- China
- Prior art keywords
- edge
- section
- circuit breaker
- section joint
- support arm
- 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.)
- Expired - Lifetime
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- Control Of Motors That Do Not Use Commutators (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Control Of Eletrric Generators (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
A low-voltage circuit breaker comprises at least one fixed contact, a corresponding movable contact and at least one arc chamber comprising a plurality of planer plates with designed modes. The plates are provided with plane bodies with designed modes, each plate is provided with a first supporting arm and a second supporting arm which are different in length, and the two supporting arms extend out from a base portion along a parallel direction to form a slot. Each first supporting arm is provided with a first outer edge and a second inner edge. The second edge is provided with a first section and a second section, wherein the first section is adjacently connected with the base portion and parallel to an extending direction of the first supporting arm, and the second section is adjacently connected to the first section and tilts towards the first edge. Each second supporting arm is provided with a third outer edge and a fourth inner edge. The fourth edge is provided with a third section and a fourth section, wherein the third section is adjacently connected with the base portion and parallel to the first section, the length of the third section is shorter than that of the first section, and the fourth section is adjacently connected with the third section and tilts towards the third edge. The low-voltage circuit breaker has improved arc extinguishing property, practicality and easy production.
Description
Technical field
The utility model relates to a kind of circuit breaker that is used for the low pressure applications occasion.
Background technology
As known in the art, the circuit breaker that is used for the low pressure applications occasion is generally each circuit and all is provided with fixing contact and corresponding movable contact mutually, and these two kinds of contacts can combine or be separated from, to carry out the motion of closure or disconnection.Corresponding to these contacts, also be provided with the chamber that is used for extinguish arcs usually; It generally comprises a plurality of flat part that are made as given shape, and these flat part are arranged to be parallel to each other, and leaves certain distance mutually.
In most of the cases, described flat part is that platysome by U-shaped constitutes; The size of described flat part is determined easily according to the performance requirement (operating voltage and breaking current) of circuit breaker.Thereby these flat part are arranged in heaps group form, and leave certain distance mutually, thereby have formed a kind of chamber, and this chamber can subtract the electric arc effect and goes out to minimum, dissipate the energy that electric arc produces after forming.
Summary of the invention
The purpose of this utility model is to provide a kind of low-voltage circuit breaker, and it has improved characteristic at the extinguish arcs aspect of performance.
Another purpose of the present utility model is to provide a kind of low-voltage circuit breaker, and it had both had very high reliability, also can relatively easily produce with competitive price.
Comprise according to low-voltage circuit breaker of the present utility model: at least one fixed contact and corresponding movable contact, they can mutually combine or be separated from; And at least one arc chamber, it comprises a plurality of horizontal plate through shape design, these plates are aligned to and are parallel to each other, and leave certain distance mutually; In according to circuit breaker of the present utility model, described plate is provided with the plane body through shape design, and it has first support arm and second support arm, and two support arms extend along parallel direction from base portion, and have formed the line of rabbet joint.
Two support arms have different length, and the length of first support arm is greater than the length of second support arm.First support arm is provided with first outward flange and second inward flange, and second support arm is provided with the 3rd outward flange and the 4th inward flange.Described second edge, the 4th edge have formed the described line of rabbet joint with described base portion.
In according to circuit breaker of the present utility model, described second edge is provided with first section joint with described base portion adjacency, and it is parallel to the bearing of trend of described first support arm; Also be provided with second section joint with described first section joint adjacency on second edge, it tilts in the direction towards first edge; The 4th edge is provided with the 3rd section joint with described base portion adjacency, and it is parallel to described first section joint, and it is shorter in length than the length of first section joint; Also be provided with the 4th section joint with described the 3rd section joint adjacency on the 4th edge, it tilts in the direction towards described the 3rd edge.
Preferably, described second edge is provided with the 5th section joint, and the 5th section joint extends from described second section joint, and bearing of trend is parallel to the direction of described first section joint.
Preferably, described arc chamber comprises the device that is used to support described a plurality of plates, this bracing or strutting arrangement comprises first strutting piece and second strutting piece, and described first strutting piece is oriented to corresponding with described first edge and the 3rd edge of described plate with described second strutting piece.
Preferably, described first edge and the 3rd edge have and are used for the device that connects with described first strutting piece and second strutting piece.
Preferably, described arc chamber comprises electric conductor, this electric conductor comprise be positioned near described a plurality of plate, through the plane body of shape design.
Preferably, described electric conductor is connected with described movable contact realization work.
Preferably, described appearance plane body comprises the electric conductor on plane, and the electric conductor on this plane has the 3rd support arm and the 4th support arm that extends in parallel out from base portion.
Preferably, described appearance plane body is positioned at a plane, and this plane parallel is in the plane by described a plurality of plate limited.
The low-voltage circuit breaker that makes like this has lot of advantages, and these advantages are all with arc extinction performance and its practicality of its improvement with to be easy to productivity relevant.
More particularly, the utility model relates to a kind of like this circuit breaker that is used for low pressure applications: it is provided with arc chamber, because the structure of this arc chamber self, with and element have special shape, so it is in the characteristic that possesses improvement aspect practicality and the arc extinction performance.
Description of drawings
From hereinafter with reference to accompanying drawing to according to the preferred of the utility model low-voltage circuit breaker but the description of non-exclusive execution mode, can be expressly understood other features and advantages of the utility model more, following description is that the example by means of indefiniteness carries out, in the accompanying drawings:
Vertical view among Fig. 1 has been represented first element according to the arc chamber of the utility model low-voltage circuit breaker;
Fig. 2 is the perspective view of element shown in Figure 1;
Perspective representation among Fig. 3 according to second element of the arc chamber of the utility model low-voltage circuit breaker; And
Exploded view among Fig. 4 has represented to constitute some elements according to arc chamber in the utility model low-voltage circuit breaker.
Embodiment
Referring to accompanying drawing, in the most general execution mode, the movable contact 9 (referring to Fig. 4) that comprises at least one fixed contact and correspondence according to low-voltage circuit breaker of the present utility model, these contacts can mutually combine or be separated from each other out, thereby finish the closed procedure motion of this circuit breaker institute connection circuit or disconnect motion.
Also comprise at least one arc chamber 1 according to circuit breaker of the present utility model, it comprises a plurality of horizontal plate 10 through shape design, and these plates are aligned to and are parallel to each other, and leave certain distance mutually.
Referring to Fig. 1 and Fig. 2, one of them exclusive feature according to circuit breaker of the present utility model shows as the following fact: described plate 10 has the plane body through shape design, it is provided with first support arm 11 and second support arm 12, these two support arms extend along parallel direction from base portion 13, and have formed the line of rabbet joint 14.Different with the most of plates that constitute existing arc chamber, the length of first support arm 11 is greater than the length of second support arm 12.
In addition, first support arm 11 is provided with first outward flange 111 and second inward flange 112, and second support arm 12 is provided with the 3rd outward flange 113 and the 4th inward flange 114.Thereby the line of rabbet joint 14 is formed by described second edge 112, the 4th edge 114 and described base portion 13.Show as the unique texture of the described line of rabbet joint 14 according to another exclusive feature of low-voltage circuit breaker of the present utility model.
In fact, as what can from accompanying drawing, find out, in according to low-voltage circuit breaker of the present utility model, described second edge 112 is provided with first section joint 21, itself and described base portion 13 adjacency, and, also be provided with second section joint 22 on second edge parallel with the bearing of trend of first support arm 11, itself and described first section joint 21 adjacency, and tilt in the direction towards described first edge 111.Conversely, described the 4th edge 114 is provided with the 3rd section joint 31 with described base portion 13 adjacency, it is parallel with described first section joint 21, but be shorter in length than first section joint 21, also be provided with on the 4th edge and described the 3rd section the 4th section joint 32 that saves 31 adjacency, it tilts in the direction towards described the 3rd edge 113.
In actual conditions,, say that this line of rabbet joint has by section joint 21 and 31 and encloses the linear section of limitting as what find out from the bottom of the line of rabbet joint 14 from Fig. 1 and Fig. 2, wherein, the bottom correspondence of the line of rabbet joint the base portion 13 of plate 10; In this linearity region, the longitudinal axis of the line of rabbet joint 14 is arranged essentially parallel to the bearing of trend of first, second support arm 11 and 12.Subsequently, the edge of the line of rabbet joint 14 (by section joint 22 and 32 marginal portions that form) are that fork separates, and open laterally.
According to a kind of preferred implementation of the utility model low-voltage circuit breaker, also be provided with the 5th section joint 23 on second edge 112 of first support arm 11, it extends from described second section joint 22, and bearing of trend is parallel to the direction of described first section joint 21.
In other words, according to this preferred implementation, be provided with convex shoulder 23 near the end at first support arm, 11 second edges 112, its projection on the direction that is parallel to the line of rabbet joint 14 longitudinal axis.
Referring to Fig. 4, in according to low-voltage circuit breaker of the present utility model, arc chamber 1 comprises the device that is used to support a plurality of plates 10; It is corresponding with described first edge 111 and the 3rd edge 113 of described plate 10 that described bracing or strutting arrangement for example comprises that first strutting piece 41 and second strutting piece, 42, two strutting pieces are oriented to.For example as shown in Figure 4, this bracing or strutting arrangement can be made of two silvers, and silver is to be made by the enough big material of rigidity, thereby plate 10 can be remained on the position of setting.
For this purpose, advantageously, first edge 111 and the 3rd edge 113 can have and be used for the device that connects with described first strutting piece 41 and second strutting piece 42.As depicted in figs. 1 and 2, can form described coupling arrangement by first edge 111 and the 3rd edge 113 are designed to suitable appearance, thereby these edges are provided with some projectioies, and these projectioies are adapted to fit in the corresponding hole of making on described first, second strutting piece 41 and 42.
According to the utility model low-voltage circuit breaker a kind of more preferred embodiment in, described arc chamber comprises electric conductor 50, it comprises the plane body 51 through shape design, this plane body be positioned in described a plurality of plate 10 near.
Particularly, referring to Fig. 4, the decomposition view among the figure has been represented some building blocks according to circuit breaker of the present utility model, and among the figure, electric conductor 50 has realized that with described movable contact 9 work is connected.In other words, advantageously, electric conductor 50 realizes that with movable contact 9 circuit is connected, thereby has had given electromotive force in the position near described a plurality of plates.
Referring to Fig. 3, in a kind of preferred implementation according to the utility model low-voltage circuit breaker, described appearance plane body 51 comprises the plane electric conductor that is substantially the U-shaped geometry.
Specific, advantageously be provided with the 3rd support arm 511 and the 4th support arm 512 on the appearance plane body 51, they extend abreast from base portion 513.Thereby one of them in two support arms-for example the 4th support arm 512 joins to by current-carrying part on other element of circuit breaker, wherein, according to the free space of concrete demand and circuit breaker inside the shape of described current-carrying part has been done suitable design.
As mentioned above, Fig. 4 is the exploded view according to some building blocks on the low-voltage circuit breaker of the present utility model, thereby the state shown in the figure is not the operating state of these building blocks.
Particularly, when circuit breaker is assembled when finishing and carrying out work, appearance plane body 51 advantageously is positioned to and a plurality of plate 10 adjacency, and its locate mode makes it be in the plane, and this plane is arranged essentially parallel to the plane that is limited by described a plurality of appearance plates 10.
In other words, when circuit breaker is assembled when finishing, the base portion 513 of appearance plane body 51 is contiguous with first support arm 11 of one of them plate 10, and is in the plane that is parallel to first support arm 11, and plate 10 wherein is to be positioned at wherein that plate at an end place of a plurality of plate 10 heap groups.Meanwhile, the 3rd support arm 511 present positions are adjacent to the base portion 13 of plate 10, and are in the plane parallel with base portion 13, and the position of the 4th support arm 512 is adjacent to the part that has formed the line of rabbet joint 14 peristomes on the plate 10, and are in the parallel plane.
The normally existing type of other parts of circuit breaker, and can select according to concrete demand and application conditions, thereby these parts are not expressed in the accompanying drawings, and do not describe in detail in the text.
Can find out to have numerous significant advantages according to low-voltage circuit breaker of the present utility model with respect to existing breaker from description above.
In fact, can find out: than the breaker of its arc chamber employing general type plate, arc extinction performance of the present utility model has obtained significant raising. In addition, can also understand: because near the plane body 51 that a plurality of plates 10, is provided with electric conductor 50 and has associated shape, so the performance of switch has been produced important impact.
Also must be pointed out that: from the angle of producing, such low-voltage circuit breaker-friendship is that the breaker with arc chamber of above-mentioned design is easy to make, and has the advantage of manufacturing cost aspect.
On above-described basis, those skilled in the art can visualize other feature, change or improvement apparently. Thereby these features, change and improvement should be considered to part of the present utility model. In actual conditions, employed material and concrete size and version can be according to demand with the situation of prior art and selected.
Claims (8)
1. low-voltage circuit breaker, it comprises: at least one fixed contact and corresponding movable contact (9), described fixed contact and described movable contact can mutually combine or be separated from; And at least one arc chamber (1), it comprises a plurality of horizontal plate (10) through shape design, described plate is aligned to and is parallel to each other, and leave certain distance mutually, it is characterized in that: described plate (10) has the plane body through shape design, this plane body is provided with first support arm (11) and second support arm (12), described first support arm (11) extends along parallel direction from base portion (13) with described second support arm (12), and the qualification line of rabbet joint (14), the length of first support arm (11) is greater than the length of second support arm (12), described first support arm (11) has first outward flange (111) and second inward flange (112), described second support arm (12) has the 3rd outward flange (113) and the 4th inward flange (114), the described line of rabbet joint (14) is by described second edge (112), the 4th edge (114) and described base portion (13) limit, described second edge (112) has the first section joint (21) with described base portion (13) adjacency, and this first section joint is parallel to the bearing of trend of described first support arm (11); Also have the second section joint (22) with described first section joint (21) adjacency on second edge, this second section joint tilts in the direction towards described first edge (111); Described the 4th edge (114) has the 3rd section joint (31) with described base portion (13) adjacency, and the 3rd section joint is parallel to described first section joint (21), and the length that is shorter in length than first section joint (21) of the 3rd section joint; Also have on the 4th edge and described the 3rd section the 4th section joint (32) that saves (31) adjacency, the 4th section joint tilts in the direction towards described the 3rd edge (113).
2. low-voltage circuit breaker according to claim 1 is characterized in that: described second edge (112) is provided with the 5th section joint (23), and the 5th section joint extends from described second section joint (22), and bearing of trend is parallel to the direction of described first section joint (21).
3. low-voltage circuit breaker according to claim 1 and 2, it is characterized in that: described arc chamber (1) comprises the device that is used to support described a plurality of plate (10), this bracing or strutting arrangement comprises first strutting piece (41) and second strutting piece (42), and described first strutting piece (41) is oriented to corresponding with described first edge (111) and the 3rd edge (113) of described plate (10) with described second strutting piece (42).
4. low-voltage circuit breaker according to claim 3 is characterized in that: described first edge (111) and the 3rd edge (113) have and are used for the device that connects with described first strutting piece (41) and second strutting piece (42).
5. low-voltage circuit breaker according to claim 1 and 2 is characterized in that: described arc chamber comprises electric conductor (50), this electric conductor comprise be positioned near described a plurality of plate (10), through the plane body (51) of shape design.
6. low-voltage circuit breaker according to claim 5 is characterized in that: described electric conductor (50) is connected with described movable contact (9) realization work.
7. low-voltage circuit breaker according to claim 5 is characterized in that: described appearance plane body (51) comprises the electric conductor on plane, and the electric conductor on this plane has the 3rd support arm (511) and the 4th support arm (512) that extends in parallel out from base portion (513).
8. low-voltage circuit breaker according to claim 7 is characterized in that: described appearance plane body (51) is positioned at a plane, and this plane parallel is in the plane that is limited by described a plurality of plates (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI2008U000285 | 2008-09-09 | ||
| ITMI20080285 ITMI20080285U1 (en) | 2008-09-09 | 2008-09-09 | LOW VOLTAGE SWITCH |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201478153U true CN201478153U (en) | 2010-05-19 |
Family
ID=42414413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201702858U Expired - Lifetime CN201478153U (en) | 2008-09-09 | 2009-09-07 | Low-voltage circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201478153U (en) |
| IT (1) | ITMI20080285U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013152555A1 (en) * | 2012-04-10 | 2013-10-17 | Abb Technology Ltd. | Arc-quenching device of switch for low, medium and high voltage applications |
| CN106548912A (en) * | 2015-09-22 | 2017-03-29 | 浙江正泰电器股份有限公司 | Chopper |
| CN107546081A (en) * | 2016-06-23 | 2018-01-05 | 上海良信电器股份有限公司 | A kind of breaker arc extinguishing space-closed structure |
-
2008
- 2008-09-09 IT ITMI20080285 patent/ITMI20080285U1/en unknown
-
2009
- 2009-09-07 CN CN2009201702858U patent/CN201478153U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013152555A1 (en) * | 2012-04-10 | 2013-10-17 | Abb Technology Ltd. | Arc-quenching device of switch for low, medium and high voltage applications |
| CN106548912A (en) * | 2015-09-22 | 2017-03-29 | 浙江正泰电器股份有限公司 | Chopper |
| CN107546081A (en) * | 2016-06-23 | 2018-01-05 | 上海良信电器股份有限公司 | A kind of breaker arc extinguishing space-closed structure |
| CN107546081B (en) * | 2016-06-23 | 2020-03-24 | 上海良信电器股份有限公司 | Arc extinguishing space sealing structure of circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI20080285U1 (en) | 2010-03-10 |
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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: 20100519 |
|
| CX01 | Expiry of patent term |