CN203205287U - Arc extinguishing device - Google Patents
Arc extinguishing device Download PDFInfo
- Publication number
- CN203205287U CN203205287U CN 201320224665 CN201320224665U CN203205287U CN 203205287 U CN203205287 U CN 203205287U CN 201320224665 CN201320224665 CN 201320224665 CN 201320224665 U CN201320224665 U CN 201320224665U CN 203205287 U CN203205287 U CN 203205287U
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- CN
- China
- Prior art keywords
- arc
- arc extinguishing
- extinguish chamber
- deep
- slotted chip
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- 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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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses an arc extinguishing device for an auto transfer switch. The device is formed by two matching arc extinguishing shields made of insulation material. The entire device is divided into two arc extinguishing chambers which are completely separated without any air gap to ensure that when electric arcs are generated by touch and separation of contacts insides the arc extinguishing chambers, no short circuit is generated between different power sources as a result of an air gap. Thus the device is safe and reliable, with a simple structure. Compared with ventilation space arranged in a shell of an arc extinguishing device in the prior art, flash barriers with a plurality of holes comprised by the device are faster in heat dissipation and better in exhausting effects. U-shaped grooves of arc chutes communicate to form a connected space and so do arc-shaped grooves of the arc chutes, which facilitates conduction and gas flow during arc burning and reduces the pressure and temperature inside the device.
Description
Technical field
The utility model relates to the arc-control device that a kind of automatic change-over is used.
Background technology
The electric arc that arc control device produce when separated in order to limit the automatic change-over parts also can play the effect of auxiliary extinction of arc sometimes.With regard to principle, the basic reason that produces electric arc is to contain a large amount of free electronics in device for switching contact itself and the contact medium on every side, when arcing contact disconnects, if there is enough large voltage between contact, and circuital current is when also reaching your pupil's arc current, will encourage above-mentioned free electronics and forms electric arc.The electric arc of above-mentioned formation not only has very large destruction to contact, and makes the time lengthening of open circuit, the high temperature of electric arc that air is expanded, and the too high untimely discharge of arc control device air pressure easily causes outer casing rupture, and more serious meeting causes security incident.In sum, need a kind of arc control device in the device for switching of being applied to higher reliability of design.
Summary of the invention
The utility model is in order to remedy the deficiencies in the prior art, provide a kind of simple in structure, safe and reliable, each arc extinguishing cavity is effectively isolated, the effective arc-control device of arc extinguishing and Quick air-discharge.
The utility model is by the following technical solutions: a kind of arc-control device, it is characterized in that: comprise the first arc-extinguish chamber and the second arc-extinguish chamber made by insulating material, described the first arc-extinguish chamber and the second arc-extinguish chamber are the T-shape structure, described the first arc-extinguish chamber and the second arc-extinguish chamber complement each other to form the integral body of " worker " type structure, described " worker " type structure is separated out independently two arc extinguishing cavitys, described two arc extinguishing cavitys are isolated each other, and the electric arc that produces in two arc extinguishing cavitys is independent of each other.
As a kind of improvement, respectively be tiltedly installed with the evenly distributed arc extinguishing grid pieces of multi-disc in described two arc extinguishing cavitys, described outermost arc extinguishing grid pieces cooperates the space that forms the fixed contact activity with arc extinguishing cavity bottom, describedly be provided with a division board parallel with this arc extinguishing grid pieces near the position of inboard arc extinguishing grid pieces, the top of described arc extinguishing cavity is provided with the flash barrier with a plurality of holes.
As a kind of improvement, one side of described arc extinguishing grid pieces has " U " type groove, the opposite side of relative " U " type groove has the first deep-slotted chip breaker on the described arc extinguishing grid pieces, described the first deep-slotted chip breaker relatively " U " type groove in the arc extinguishing cavity towards the inboard, the position of metallic plate first deep-slotted chip breaker of described inclination is higher than the position of " U " type groove, and " U " type groove and first deep-slotted chip breaker of described arrangement form respectively the striking passage.
As a kind of improvement, described division board has the second deep-slotted chip breaker, and described the second deep-slotted chip breaker is corresponding with the position of the first deep-slotted chip breaker.
As a kind of improvement, described arc extinguishing grid pieces, division board, flash barrier are fixed by the groove that is arranged on the first arc-extinguish chamber and the second arc-extinguish chamber.
As a kind of improvement, described the first arc-extinguish chamber and the second arc-extinguish chamber are fixing by riveted joint.
The beneficial effects of the utility model: two arc-extinguish chambers that insulating material is made cooperate the arc-control device integral body that forms to be separated out two arc extinguishing cavitys, air gap is isolated, do not had to two arc extinguishing cavitys fully, can guarantee two arc extinguishing cavity internal cause Contact Breaking/Making Operations and when producing electric arc, can not form because of the existence of air gap the short circuit between the different electrical power, simple in structure and safe and reliable; With the flash barrier in a plurality of holes, the ventilation space that housing originally arranges with it before comparing dispels the heat faster, and exhaust effect is better; " U " the type groove that links to each other on the arc extinguishing grid pieces and deep-slotted chip breaker form connected space separately, and flowing of the conduction when being conducive to arc burning and gas reduces the pressure and temperature in the arc-control device.
Description of drawings
Fig. 1 is the three-dimensional structure diagram of a kind of arc-control device of the utility model.
Fig. 2 is the construction profile of a kind of arc-control device of the utility model.
Fig. 3 is the front cross-sectional view of a kind of arc-control device of the utility model.
Embodiment
Below in conjunction with accompanying drawing specific embodiment of the utility model is elaborated.
As shown in Figure 1, 2, 3, be the specific embodiment of a kind of arc-control device of the utility model.This embodiment comprises the first arc-extinguish chamber 1 and the second arc-extinguish chamber 2 of being made by insulating material, the first arc-extinguish chamber 1 and the second arc-extinguish chamber 2 are the T-shape structure, the first arc-extinguish chamber 1 and the second arc-extinguish chamber 2 complement each other to form the integral body of " worker " type structure, " worker " type structure is separated out independently two arc extinguishing cavitys, two arc extinguishing cavitys are isolated each other, and the electric arc that produces in two arc extinguishing cavitys is independent of each other.Two arc-extinguish chambers that insulating material is made cooperate the arc-control device integral body that forms to be separated out two arc extinguishing cavitys, air gap is isolated, do not had to two arc extinguishing cavitys fully, can guarantee two arc extinguishing cavity internal cause Contact Breaking/Making Operations and when producing electric arc, can not form because of the existence of air gap the short circuit between the different electrical power, simple in structure and safe and reliable.
As a kind of improved embodiment, respectively be tiltedly installed with the evenly distributed arc extinguishing grid pieces of multi-disc 3 in described two arc extinguishing cavitys, outermost arc extinguishing grid pieces 3 cooperates the space 6 that forms the fixed contact activity with arc extinguishing cavity bottom, be provided with a division board 4 parallel with this arc extinguishing grid pieces 3 near the position of the most inboard arc extinguishing grid pieces 3, the top of arc extinguishing cavity is provided with the flash barrier 5 with a plurality of holes.Flash barrier 5 positions are the installment work location status of this arc-control device up, take this as the standard in described upper and lower, multi-disc arc extinguishing grid pieces 3 is arranged near the arc-control device middle and lower part, the bottom is the external cooperation mouth of arc-control device, nethermost a slice arc extinguishing grid pieces 3 positions are called outermost, call uppermost a slice arc extinguishing grid pieces 3 positions the most inboard; Arc control device are before originally designed ventilation space with it at housing, process loaded down with trivial detailsly, and heat-sinking capability is general; And after having adopted the flash barrier 5 that is provided with a plurality of holes, metal flash barrier 5 heat radiations are faster, and exhaust effect is better.
As a kind of improved embodiment, one side of described arc extinguishing grid pieces 3 has " U " type groove, the opposite side of relative " U " type groove has the first deep-slotted chip breaker on the arc extinguishing grid pieces 3, the first deep-slotted chip breaker relatively " U " type groove in the arc extinguishing cavity towards the inboard, the position of metallic plate 3 first deep-slotted chip breakers that tilt is higher than the position of " U " type groove, " U " type groove and the first deep-slotted chip breaker arranged form respectively the striking passage, division board 4 has the second deep-slotted chip breaker, and the second deep-slotted chip breaker is corresponding with the position of the first deep-slotted chip breaker." U " the type groove that links to each other on the arc extinguishing grid pieces 3 and deep-slotted chip breaker form connected space separately, and flowing of the conduction when being conducive to arc burning and gas reduces the pressure and temperature in the arc-control device.
As a kind of improved embodiment, described arc extinguishing grid pieces 3, division board 4, flash barrier 5 are fixed by the groove that is arranged on the first arc-extinguish chamber 1 and the second arc-extinguish chamber 2, and the first arc-extinguish chamber 1 and the second arc-extinguish chamber 2 are fixing by riveted joint.Simplify the structure, integral body is compact more, also makes processing fixing more convenient.
Claims (6)
1. arc-control device, it is characterized in that: comprise the first arc-extinguish chamber (1) and the second arc-extinguish chamber (2) made by insulating material, described the first arc-extinguish chamber (1) and the second arc-extinguish chamber (2) are the T-shape structure, described the first arc-extinguish chamber (1) and the second arc-extinguish chamber (2) complement each other to form the integral body of " worker " type structure, described " worker " type structure is separated out independently two arc extinguishing cavitys, described two arc extinguishing cavitys are isolated each other, and the electric arc that produces in two arc extinguishing cavitys is independent of each other.
2. a kind of arc-control device according to claim 1, it is characterized in that respectively being tiltedly installed with the evenly distributed arc extinguishing grid pieces of multi-disc (3) in described two arc extinguishing cavitys, described outermost arc extinguishing grid pieces (3) cooperates the space (6) that forms the fixed contact activity with arc extinguishing cavity bottom, described position near the most inboard arc extinguishing grid pieces (3) is provided with a division board (4) parallel with this arc extinguishing grid pieces (3), and the top of described arc extinguishing cavity is provided with the flash barrier (5) with a plurality of holes.
3. a kind of arc-control device according to claim 2, a side that it is characterized in that described arc extinguishing grid pieces (3) has " U " type groove, the upper relatively opposite side of " U " type groove of described arc extinguishing grid pieces (3) has the first deep-slotted chip breaker, described the first deep-slotted chip breaker relatively " U " type groove in the arc extinguishing cavity towards the inboard, the position of metallic plate (3) first deep-slotted chip breakers of described inclination is higher than the position of " U " type groove, and " U " type groove and first deep-slotted chip breaker of described arrangement form respectively the striking passage.
4. a kind of arc-control device according to claim 3 is characterized in that described division board (4) has the second deep-slotted chip breaker, and described the second deep-slotted chip breaker is corresponding with the position of the first deep-slotted chip breaker.
5. according to claim 2 or 3 or 4 described a kind of arc-control devices, it is characterized in that described arc extinguishing grid pieces (3), division board (4), flash barrier (5) fix by the groove that is arranged on the first arc-extinguish chamber (1) and the second arc-extinguish chamber (2).
6. according to claim 2 or 3 or 4 described a kind of arc-control devices, it is characterized in that described the first arc-extinguish chamber (1) and the second arc-extinguish chamber (2) are fixing by riveted joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320224665 CN203205287U (en) | 2013-04-28 | 2013-04-28 | Arc extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320224665 CN203205287U (en) | 2013-04-28 | 2013-04-28 | Arc extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203205287U true CN203205287U (en) | 2013-09-18 |
Family
ID=49149370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320224665 Expired - Lifetime CN203205287U (en) | 2013-04-28 | 2013-04-28 | Arc extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203205287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336526A (en) * | 2015-12-10 | 2016-02-17 | 二一三电器(上海)有限公司 | Double-breakpoint-contact arc-control device |
| CN105428098A (en) * | 2015-12-10 | 2016-03-23 | 二一三电器(上海)有限公司 | Double-breakpoint moving contact apparatus |
-
2013
- 2013-04-28 CN CN 201320224665 patent/CN203205287U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336526A (en) * | 2015-12-10 | 2016-02-17 | 二一三电器(上海)有限公司 | Double-breakpoint-contact arc-control device |
| CN105428098A (en) * | 2015-12-10 | 2016-03-23 | 二一三电器(上海)有限公司 | Double-breakpoint moving contact apparatus |
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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: 20130918 |
|
| CX01 | Expiry of patent term |