CN201163581Y - Arc-extinguishing device of AC contactor - Google Patents
Arc-extinguishing device of AC contactor Download PDFInfo
- Publication number
- CN201163581Y CN201163581Y CNU2007203122542U CN200720312254U CN201163581Y CN 201163581 Y CN201163581 Y CN 201163581Y CN U2007203122542 U CNU2007203122542 U CN U2007203122542U CN 200720312254 U CN200720312254 U CN 200720312254U CN 201163581 Y CN201163581 Y CN 201163581Y
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- Prior art keywords
- arc
- control device
- striking
- contactor
- shaped
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Abstract
The utility model discloses an arc control device for an AC contactor, comprising a moving contact, two U-shaped fixed contacts and arc-extinguishing mechanisms which are positioned on both sides of the moving contact. The arc control device for the AC contactor is characterized in that: a first arc striking piece used for increasing the magnetic field strength is arranged on the moving contact. The arc control device for the AC contactor can effectively increase the magnetic field strength, thereby increasing the movement velocity of electric arc and improving the arc-extinguishing effect.
Description
Technical field
The utility model relates to a kind of arc-control device, is specifically related to a kind of AC contactor arc control device.
Background technology
U-shaped arc leading angle arc extinguishing is to utilize ferromagnetic U-shaped arc leading angle when contact disconnects, and forms magnetic field in voltage contact area, drives electric arc and outwards moves; When electric arc forms four sections series connection short arcs, during current over-zero, utilize the effective extinguish arcs of proximal pole effect, no longer restrike.
U-shaped arc quenching plate arc-control device is simple in structure because of it; arc extinction performance is good; can protect arc-extinguish chamber preferably, make it avoid being subjected to high arc temperature ground and directly act on and scaling loss, thereby the arc-control device that adopts the U-shaped arc quenching plate to make extensively be applied on the low capacity A.C. contactor.
Up to now, the A.C. contactor of external all employing U-shaped arc leading angle arc extinguishings, dynamic/static contact made of copper of employing without exception and U-shaped arc leading angle match.Studies show that because the arc blow-out magnetic field that the U-shaped arc leading angle forms will be by long space, magnetic field intensity is not high, arc motion speed is unhappy, has influence on arc quenching effect to a certain extent.
The utility model content
The purpose of this utility model provides a kind of effective increase magnetic field intensity, thereby increases the AC contactor arc control device of arc motion speed, raising arc quenching effect.
The technical scheme that realizes the utility model purpose is: a kind of AC contactor arc control device comprises a moving contact, two U-shaped fixed contacts and is positioned at the arc-extinguishing mechanism of moving contact both sides that described moving contact is provided with the first striking part that is used to increase magnetic field intensity.
The described first striking part comprises flat main part and is arranged on the striking portion towards fixed contact direction projection of main part corner.
The basic configuration of the described first striking part is a rectangle, and being provided with a basic configuration at its four corners is L shaped striking portion.
The basic configuration of described moving contact is a rectangle, and described each striking portion wraps a jiao of moving contact.
Also to be provided with basic configuration in the U-lag of described each fixed contact be U-shaped, be used to increase by the second striking part of magnetic field intensity.
The described second striking part comprises the tabular main body of U-shaped, is arranged on the striking portion towards moving contact direction projection of main body one end.
The basic configuration of the striking portion of the described second striking part is L shaped, and is arranged on the Liang Jiaochu near an end of arc-extinguishing mechanism on U-shaped main body top.Described each striking portion wraps a jiao of fixed contact.
The utlity model has positive effect: (1) the utility model patent is at the shortcoming of traditional U-shaped arc quenching plate arc-control device; on the moving contact of contactor, install the first striking part that is used to increase magnetic field intensity additional; and at the corner of the first striking part basic configuration is set is L shaped and the striking portion that wraps four jiaos of moving contacts; this first striking part and moving contact are fixed as one; because and the tight coupling of arc current; can encourage stronger magnetic field; the magnetic field that this magnetic field and U-shaped fixed contact joint cover form is superimposed; driving electric arc moves rapidly; thereby shorten the quenching time greatly; improve breaking capacity; the electric arc arc root silver contact that speeds away simultaneously; jump in the striking portion of the first striking part that is enclosed in four jiaos of moving contacts, effectively protect the contact to reduce contact wear, help the raising of electric life.(2) also can also to be provided with basic configuration in the U-lag of each fixed contact be second striking part U-shaped, that be used to increase magnetic field intensity to the utility model, this the second striking part and the first striking part match, can better increase magnetic field intensity, strengthen the intensity of electromagnetic force F, accelerate arc motion, electric arc is moved on to rapidly on the arc-extinguishing mechanism, cooling, extinguish arcs, shorten the quenching time, improve breaking capacity.
Description of drawings
Fig. 1 is a kind of perspective view of the present utility model;
Fig. 2 is the structural representation of AC contactor arc control device shown in Figure 1 when observing from the side;
Fig. 3 is the perspective view of the first striking part in the AC contactor arc control device shown in Figure 1;
Fig. 4 is the perspective view of the second striking part in the AC contactor arc control device shown in Figure 1.
Be labeled as shown in the accompanying drawing: moving contact 1, U-shaped fixed contact 2, arc-extinguishing mechanism 3, the first striking parts 4, main part 41, striking portion 42, the second striking parts 5, main body 51, striking portion 52, spring 6, housing 7.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 4 has shown a kind of embodiment of the present utility model, and wherein Fig. 1 is a kind of perspective view of the present utility model; Fig. 2 is the structural representation of AC contactor arc control device shown in Figure 1 when observing from the side; Fig. 3 is the perspective view of the first striking part in the AC contactor arc control device shown in Figure 1; Fig. 4 is the perspective view of the second striking part in the AC contactor arc control device shown in Figure 1.
Present embodiment is a kind of AC contactor arc control device, sees Fig. 1 and Fig. 2, comprises that one provides the moving contact 1 of reset force, two arc-extinguishing mechanisms 3 that are fixed on the U-shaped fixed contact 2 on the housing 7 and are positioned at moving contact 1 both sides by spring 6; Described moving contact 1 is provided with the first striking part 4 that is used to increase magnetic field intensity, and also to be provided with basic configuration in the U-lag 21 of described each fixed contact 2 be U-shaped, be used to increase by the second striking part 5 of magnetic field intensity.
See Fig. 3, the described first striking part 4 comprises the main part 41 of rectangular flat shape and is arranged on 41 4 corners of main part, basic configuration is L shaped and towards four striking portions 42 of fixed contact 2 direction projections.Described each striking portion 42 wraps a jiao of moving contact 1.
See Fig. 4, the described second striking part comprises the tabular main body of U-shaped 51, is arranged on the striking portion 52 towards moving contact 1 direction projection of main body 51 1 ends.The basic configuration of the striking portion 52 of the described second striking part 5 is L shaped, and is arranged on the Liang Jiaochu near an end of arc-extinguishing mechanism 3 on U-shaped main body 51 tops.Described each striking portion 52 wraps a jiao of fixed contact 2.
It is as follows that present embodiment has advantage:
(1) the present embodiment patent is at the shortcoming of traditional U-shaped arc quenching plate arc-control device; on the moving contact of contactor, install the first striking part that is used to increase magnetic field intensity additional; in the U-lag of each fixed contact, also be provided with basic configuration and be U-shaped; be used to increase by the second striking part of magnetic field intensity; this first striking part and moving contact are fixed as one; this second striking part and fixed contact are fixed as one; because the first striking part; the second striking part and the tight coupling of arc current; can encourage stronger magnetic field; the magnetic field that this magnetic field and U-shaped fixed contact joint cover form and superimposed; driving electric arc moves rapidly; thereby shorten the quenching time greatly; improve breaking capacity; the electric arc arc root silver contact that speeds away simultaneously; jump in the striking portion of the first striking part that is enclosed in four jiaos of moving contacts; effectively contact wear is reduced in the protection contact, helps the raising of electric life.Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.
For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection range of the present utility model.
Claims (8)
1, a kind of AC contactor arc control device, comprise a moving contact (1), two U-shaped fixed contacts (2) and be positioned at the arc-extinguishing mechanism (3) of moving contact (1) both sides, it is characterized in that: described moving contact (1) is provided with the first striking part (4) that is used to increase magnetic field intensity.
2, AC contactor arc control device according to claim 1 is characterized in that: the described first striking part (4) comprises flat main part (41) and is arranged on the striking portion (42) towards fixed contact (2) direction projection of main part (41) corner.
3, AC contactor arc control device according to claim 2 is characterized in that: the basic configuration of the described first striking part (4) is a rectangle, and being provided with a basic configuration at its four corners is L shaped striking portion (42).
4, AC contactor arc control device according to claim 3 is characterized in that: the basic configuration of described moving contact (1) is a rectangle, and described each striking portion (42) wraps a jiao of moving contact (1).
5, AC contactor arc control device according to claim 1 is characterized in that: also to be provided with basic configuration in the U-lag (21) of described each fixed contact (2) be U-shaped, be used to increase by the second striking part (5) of magnetic field intensity.
6, AC contactor arc control device according to claim 5 is characterized in that: the described second striking part comprises the tabular main body of U-shaped (51), is arranged on the striking portion (52) towards moving contact (1) direction projection of main body (51) one ends.
7, AC contactor arc control device according to claim 6 is characterized in that: the basic configuration of the striking portion (52) of the described second striking part (5) is L shaped, and is arranged on the Liang Jiaochu near an end of arc-extinguishing mechanism (3) on U-shaped main body (51) top.
8, AC contactor arc control device according to claim 7 is characterized in that: described each striking portion (52) wraps a jiao of fixed contact (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203122542U CN201163581Y (en) | 2007-12-30 | 2007-12-30 | Arc-extinguishing device of AC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203122542U CN201163581Y (en) | 2007-12-30 | 2007-12-30 | Arc-extinguishing device of AC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201163581Y true CN201163581Y (en) | 2008-12-10 |
Family
ID=40184510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203122542U Expired - Lifetime CN201163581Y (en) | 2007-12-30 | 2007-12-30 | Arc-extinguishing device of AC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201163581Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217076B (en) * | 2007-12-30 | 2011-01-19 | 人民电器集团有限公司 | AC contactor arc control device |
| CN106057602A (en) * | 2016-08-10 | 2016-10-26 | 李蕊名 | Structure apparatus capable of improving contact breaking capacity |
| CN106098438A (en) * | 2016-08-10 | 2016-11-09 | 李蕊名 | One has high breaking capacity arc quenching system |
-
2007
- 2007-12-30 CN CNU2007203122542U patent/CN201163581Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217076B (en) * | 2007-12-30 | 2011-01-19 | 人民电器集团有限公司 | AC contactor arc control device |
| CN106057602A (en) * | 2016-08-10 | 2016-10-26 | 李蕊名 | Structure apparatus capable of improving contact breaking capacity |
| CN106098438A (en) * | 2016-08-10 | 2016-11-09 | 李蕊名 | One has high breaking capacity arc quenching system |
| CN106057602B (en) * | 2016-08-10 | 2018-05-15 | 李蕊名 | A kind of constructional device for improving contact breaking capacity |
| CN106098438B (en) * | 2016-08-10 | 2018-05-22 | 李蕊名 | One kind has high breaking capacity arc quenching system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081210 Effective date of abandoning: 20071230 |