CN202307611U - Arc chamber of electric device - Google Patents
Arc chamber of electric device Download PDFInfo
- Publication number
- CN202307611U CN202307611U CN2011203684743U CN201120368474U CN202307611U CN 202307611 U CN202307611 U CN 202307611U CN 2011203684743 U CN2011203684743 U CN 2011203684743U CN 201120368474 U CN201120368474 U CN 201120368474U CN 202307611 U CN202307611 U CN 202307611U
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- arc
- arc chamber
- chamber according
- extension
- arc plate
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Abstract
The utility model relates to an arc chamber of an electric device. The arc chamber includes a shell (1) and a plurality of arc plates (4, 5, 6) installed in the shell (1) and spaced apart from each other. The arc plates (4, 5, 6) are arranged in a state that at least a part of the arc plates (4, 5, 6) are arranged not in parallel with the other arc plates. The arc chamber of the electric device in the utility model has good arc extinguishing capability and excellent breaking capacity. And the component number and the manufacturing cost are reduced.
Description
Technical field
The utility model relates generally to the electric device field, relates more specifically to the arc chamber of electric device, for example the arc chamber of switching device.
Background technology
Usually, such as the electric device of switching device, particularly circuit breaker, have and make from the selected circuit joint of power supply and the function of disconnection.For instance, realize this function through engaging with each pair of electrical contact mutually of cut-off breaker.Circuit breaker provides the protection of the very large electric current of avoiding continuing overcurrent condition and avoiding being produced by short circuit.Usually, an electrical contact is fixed, and another contact is movable, for example is installed on the pivotable contact arm.Contact arm is pivoted by operating mechanism, makes movable contact to engage with fixed contact and to separate.When running into overcurrent or short circuit condition, can give birth to the separation of contact from movable property by means of the tripping mechanism of circuit breaker.
When the tripping mechanism by circuit breaker carries out the separation of electrical contact, between contact, possibly form electric arc.Expectation is extinguished such electric arc as soon as possible to avoid damaging the internal part of circuit breaker.The prior art switching device directly is directed to electric arc in the assembly that is designed to arc chamber (arc control device) usually; This arc chamber is made up of a plurality of arc plates; Said arc plate by parallel and maintenance equidistantly, extinguishes said electric arc in the inside of arc chamber by means of insulated strand subsequently.Particularly, when fixed contact was left in movable contact motion, its motion was through the end of arc plate, make electric arc towards the arc plate and between the arc plate by magnetic drive.The arc plate is electrically insulated from each other, and makes electric arc interrupted by the arc plate and extinguishes.
Obtainable known product for example is the arc chamber of Merlin Gerin (Schneider Group) on a kind of market.This arc chamber comprises a plurality of arc plates that relative to each other are provided with at a certain angle, but said arc plate is held by means of different division boards.This arc chamber has the problem of low breaking capacity and a large amount of parts usually.The housing of molded case circuit breaker may melt sometimes.
The known product of another kind of arc chamber is the MODEION 3VT1 from Siemens.Shown in figure 15, the conventional arc plate 1 that is arranged in the arc chamber 2 relative to each other is parallel and has identical distance betwixt.This arc chamber is owing to the said identical distance between the arc plate has the problem of extinguish arcs, thereby influences its breaking capacity.
These known product and other similar switching device of the prior art all relate to the fringe cost of inefficient arc extinction, the manufacturing that increases switching device or maintenance cost, low relatively breaking capacity and the complexity of arc chamber.
Therefore, need a kind of switching device or circuit breaker of electric device, it is carried out the breaking capacity of better extinguishing, improve arc chamber and reduces number of parts and production cost the electric arc in the arc chamber.
The utility model content
The purpose of the utility model provides a kind of switching device, and it has up to the breaking capacity of the improvement of 25-30kA and to the extinguishing of the improvement of the electric arc in the arc chamber, and has reduced the quantity and the production cost of part simultaneously.
According to the one side of the utility model, a kind of arc chamber of electric device is provided.This arc chamber comprises housing and is installed in a plurality of arc plates in the housing with the relation that is spaced apart from each other that wherein said a plurality of arc plates are configured such that at least some the arc plates in the said arc plate relative to each other are in the angle of non-zero.Particularly, at least some the arc plates in the said arc plate are dispersed along the Arc Motion direction each other, and preferably constitute fan-shaped structure.
According on the other hand, arc chamber can have first exhaust passage at its top, has second exhaust passage in its bottom.
According on the other hand, housing is made up of base and cover, and wherein first exhaust passage can be arranged in the lid.
According on the other hand, bus can be attached to the bottom of housing.Second exhaust passage can be arranged in the bus.
According on the other hand, the arc plate is formed by two leg portions and the bridging part that is connected in therebetween.
According on the other hand, pedestal has at a plurality of ribs of its interior and at a plurality of lines of rabbet joint of the edge of said sidewall.
According on the other hand, the arc plate is kept by the said rib and the line of rabbet joint, and wherein the end of the leg portions of arc plate is kept by said rib, and is inserted into the line of rabbet joint from the protuberance that the bridging part of arc plate relatively extends.
According on the other hand, said lid has outstanding a plurality of first extensions and a plurality of second extension from the edge of the opposing sidewalls of said lid, and wherein each in first extension is between adjacent second extension.Preferably, first extension can have the length longer than the length of second extension.
According on the other hand; The be fitted to each other extension that becomes to make to win of said lid and pedestal is inserted in the inner space of pedestal with in abutting connection with corresponding arc plate; And make second extension be bonded in the line of rabbet joint of pedestal, thereby said protuberance is remained in the line of rabbet joint by second extension.
According on the other hand, second exhaust passage is made up of at least two holes, preferably is made up of two holes.
According on the other hand, a kind of electric device that comprises according to the described arc chamber in arbitrary aspect in the aforementioned aspect is provided.
According to the technical scheme of the utility model neither any add-on parts of needs also without any need for additional number of assembling steps.Said technical scheme can through the enclosure interior of arc chamber best the said arc plate of three-dimensional localization realize with plain mode.The useful technique effect of the utility model is: the specific setting of aforesaid arc plate makes the mould of base and cover only to be opened along a direction (production of part); Two exhaust passages that in arc chamber, are arranged at top and bottom can help extinguish arcs better; Breaking capacity is outstanding than prior art; And the total quantity of part is reduced, and has improved productivity ratio and has reduced manufacturing cost.
Explain by way of example from following detailed to comprise that expection implements a plurality of exemplary embodiments and the execution mode of the best mode of the utility model, can be apparent to other aspects, the feature and advantage of the utility model.The utility model can also have other different embodiment, and its a plurality of details can be implemented in all fields, and it does not all deviate from the spirit and the scope of the utility model.Therefore, should to be regarded as be illustrative and nonrestrictive to drawing and description in itself.
Description of drawings
Can obtain complete understanding from the description of a preferred embodiment of understanding below in conjunction with accompanying drawing to disclosed design, in the accompanying drawing:
Fig. 1 is the vertical section figure according to the arc chamber that is arranged in circuit breaker of the utility model exemplary embodiment.
Fig. 2 is the vertical section figure of the arc chamber among Fig. 1.
Fig. 3 is the perspective view of the pedestal of the arc chamber among Fig. 2, and it has a plurality of arc plates that are installed on wherein.
Fig. 4 is the vertical section figure of the pedestal of Fig. 3.
Fig. 5 is the perspective view of lid of the arc chamber of Fig. 2.
Fig. 6 is the perspective view of pedestal of Fig. 3 of no arc plate.
Fig. 7 and Fig. 8 are the perspective views of the arc chamber of Fig. 2.
Fig. 9 is the decomposition diagram of the arc chamber of Fig. 2.
Figure 10 and Figure 11 are the perspective views of the arc chamber of Fig. 2, and it has the bus attached with it.
Figure 12 is the front view of bottom arc plate.
Figure 13 is the front view of middle arc plate.
Figure 14 is the front view of top arc plate.
Figure 15 is the perspective view that is arranged in the conventional arc chamber of circuit breaker.
Embodiment
The design of the utility model can be applicable to multiple electrical switchgear, such as but not limited to circuit breaker, network protector, change over switch, and will be described as being applied to have the circuit breaker of separable contact hereinafter.
With reference to figure 1, show the arc chamber that is arranged in circuit breaker 20 21 according to the exemplary embodiment of the utility model.Circuit breaker 20 can comprise handle 22; This handle 22 can be operated between ON (connection) and OFF (disconnection) position; Make contact operating mechanism 30 can engage and the fixed contact that separates the one or more phases that are used for circuit breaker 34, make that being in a line terminal 36 in mutually can be electrically connected with face terminals 38.Arc chamber 21 forms and can be assembled in the housing of circuit breaker 20 by insulating material is molded.A plurality of arc plates 4,5 and 6 are maintained in the arc chamber 21.The arc plate helps extension and the cooling that circuit breaker 20 is in load and draws formed electric arc when being disconnected under the current conditions.The arc plate leaves and gets into arc chamber with electric arc from operating mechanism 30 guiding.Other details of the arc chamber that it will be apparent to those skilled in the art that will here not discussed.
Fig. 2 shows in detail the arc chamber 21 of Fig. 1.Arc chamber comprises housing 1, and housing 1 can be made up of two box bodys, i.e. pedestal 2 and lid 3.Pedestal 2 can form by insulating material is molded with lid 3.Thereby pedestal 2 has a plurality of mating features (will further describe hereinafter) separately with lid 3 is engaged with each other.A plurality of arc plates 4,5 and 6 are installed in the housing 1 with the relation that is spaced apart from each other.A plurality of arc plates 4,5 and 6 are configured such that specifically at least some the arc plates in the said arc plate relative to each other are in the angle of non-zero, thus the extension and the division of the electric arc that helps forming during the switching manipulation.Preferably, said arc plate is dispersed along the Arc Motion direction each other, promptly disperses from right to left in the drawings, and preferably constitutes fan-shaped structure.Angle between two adjacent arcs plates preferably is a bit larger tham zero.
Shown in Figure 12 to 14, the shape of arc plate is formed by two leg portions 14 and the bridging part 15 that is connected in therebetween.The arc plate preferably is symmetrical in front view.Arc plate 5 is arranged between top arc plate 4 and the bottom arc plate 6 in the middle of a plurality of, and is as shown in Figure 2.The shape of arc plate 5 in the middle of the concrete shape of top arc plate 4 and bottom arc plate 6 can be different from.Particularly, arc plate 4,5 and 6 can have the structure of U-shaped substantially.Middle arc plate 5 has U-shaped recess (Figure 13) between its leg portions 14.Top arc plate 4 can have additional recess (Figure 12) in each leg portions 14.Bottom arc plate 6 can have wide relatively bridging part 15, and it has the ledge (Figure 14) that gets into the recess between the leg portions 14.Each arc plate have from end 9 that corresponding leg portions 14 is extended with relatively from the protuberance 10 of bridging part 15 extensions.
Like Fig. 4, shown in 6 and 9, pedestal 2 has at a plurality of ribs 7 of its interior and at a plurality of lines of rabbet joint 8 of the edge of said sidewall.As shown in Figure 5, lid 3 has a plurality of first extensions 16 and a plurality of second extensions 17 outstanding from the edge of its opposing sidewalls, and wherein each in first extension 16 is between adjacent second extension 17.Preferably, first extension 16 can have the length longer than the length of second extension 17.
Shown in Fig. 1 to 4 and 9, arc plate 4,5,6 is kept by the rib 7 and the line of rabbet joint 8, and wherein the end 9 of arc plate is kept by rib 7, and the protuberance 10 of arc plate is inserted in the line of rabbet joint 8.
Shown in Fig. 2 and Fig. 7 to 9; The be fitted to each other extension 16 that becomes to make to win of lid 3 and pedestal 2 is inserted in the inner space of pedestal 2 with in abutting connection with arc plate accordingly; And make second extension 17 be bonded in the line of rabbet joint 8 of pedestal 2, thereby said protuberance 10 is firmly held in the line of rabbet joint 8 by second extension 17.Therefore, lid 3 can keep arc plate 4,5 and 6 to avoid dislocation.In addition, as shown in Figure 9, pedestal 2 can have ledge 22 and 23 on its top and bottom, and it can be inserted in the corresponding recess that covers in 3, make cover 3 more stable with being connected of pedestal 2.
Figure 10 and 11 shows the arc chamber that assembles.Arc chamber has the bus 13 of the bottom that is attached to housing.Arc chamber can be incorporated in any switching device of electric device, can extinguish the electric arc that is produced by switch effectively by means of this arc chamber.
Though at present preferably shown in the accompanying drawing with above-described embodiment, should be appreciated that such embodiment only provides by way of example.The utility model is not intended to be subject to any specific embodiment, and is intended to expand to the various remodeling that fall in the accompanying claims scope.Those skilled in the art will be apparent to other remodeling.
Claims (15)
1. the arc chamber of an electric device comprises:
Housing (1); With
Be installed in a plurality of arc plates (4,5,6) in the housing (1) with the relation that is spaced apart from each other;
It is characterized in that said a plurality of arc plates (4,5,6) are configured such that at least some the arc plates in the said arc plate relative to each other are in the angle of non-zero.
2. arc chamber according to claim 1 is characterized in that, at least some the arc plates in the said arc plate are dispersed along the Arc Motion direction each other.
3. arc chamber according to claim 2 is characterized in that, at least some the arc plates in the said arc plate constitute fan-shaped structure.
4. arc chamber according to claim 1 is characterized in that, arc chamber has first exhaust passage (11) at its top, has second exhaust passage (12) in its bottom.
5. arc chamber according to claim 4 is characterized in that, housing (1) is made up of pedestal (2) and lid (3).
6. arc chamber according to claim 5 is characterized in that, first exhaust passage (11) are arranged in the lid (3).
7. arc chamber according to claim 4 is characterized in that, bus (13) is attached to the bottom of housing (1).
8. arc chamber according to claim 7 is characterized in that, second exhaust passage (12) are arranged in the bus (13).
9. arc chamber according to claim 1 is characterized in that, arc plate (4,5,6) is formed by two leg portions (14) and the bridging part (15) that is connected in therebetween.
10. arc chamber according to claim 5 is characterized in that, pedestal (2) has at a plurality of ribs (7) of its interior and at a plurality of lines of rabbet joint (8) of the edge of said sidewall.
11. arc chamber according to claim 10; It is characterized in that; Arc plate (4,5,6) is kept by the said rib (7) and the line of rabbet joint (8); Wherein the end (9) of the leg portions (14) of arc plate (4,5,6) is kept by said rib (7), and is inserted into the line of rabbet joint (8) from the protuberance (10) that the bridging part (15) of arc plate (4,5,6) relatively extends.
12. arc chamber according to claim 5; It is characterized in that; Said lid (3) has outstanding a plurality of first extensions (16) and a plurality of second extension (17) from the edge of the opposing sidewalls of said lid (3), and wherein each in first extension (16) is positioned between adjacent second extension (17).
13. arc chamber according to claim 12; It is characterized in that; The be fitted to each other extension (16) that becomes to make to win of said lid (3) and pedestal (2) is inserted in the inner space of pedestal (2) with in abutting connection with corresponding arc plate; And make second extension (17) be bonded in the line of rabbet joint (8) of pedestal (2), thereby said protuberance (10) is remained in the line of rabbet joint (8) by second extension (17).
14. arc chamber according to claim 4 is characterized in that, second exhaust passage (12) are made up of at least two holes.
15. one kind comprises the electric device according to each described arc chamber in the aforementioned claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203684743U CN202307611U (en) | 2011-09-30 | 2011-09-30 | Arc chamber of electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203684743U CN202307611U (en) | 2011-09-30 | 2011-09-30 | Arc chamber of electric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202307611U true CN202307611U (en) | 2012-07-04 |
Family
ID=46376455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203684743U Expired - Fee Related CN202307611U (en) | 2011-09-30 | 2011-09-30 | Arc chamber of electric device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202307611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107851976A (en) * | 2015-08-25 | 2018-03-27 | Zodiac航空电器 | Electric arc arc-control device and corresponding distribution system for three-phase power distribution system |
-
2011
- 2011-09-30 CN CN2011203684743U patent/CN202307611U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107851976A (en) * | 2015-08-25 | 2018-03-27 | Zodiac航空电器 | Electric arc arc-control device and corresponding distribution system for three-phase power distribution system |
| CN107851976B (en) * | 2015-08-25 | 2019-08-02 | Zodiac航空电器 | Electric arc arc-control device and corresponding distribution system for three-phase power distribution system |
| US10461511B2 (en) | 2015-08-25 | 2019-10-29 | Zodiac Aero Electric | Electric arc extinguishing device for a three-phase power distribution system and corresponding power distribution system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20160930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |