CN202230914U - Arc extinguishing contact - Google Patents
Arc extinguishing contact Download PDFInfo
- Publication number
- CN202230914U CN202230914U CN2011204147026U CN201120414702U CN202230914U CN 202230914 U CN202230914 U CN 202230914U CN 2011204147026 U CN2011204147026 U CN 2011204147026U CN 201120414702 U CN201120414702 U CN 201120414702U CN 202230914 U CN202230914 U CN 202230914U
- Authority
- CN
- China
- Prior art keywords
- contact
- magnet
- arc extinguishing
- pole magnet
- utmost point
- 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 - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses an arc extinguishing contact, which comprises an upper contact (2) and a lower contact (3); an S-pole magnet (1) is arranged on the upper contact (2), an N-pole magnet (4) is arranged on the lower contact (3), and the magnets are in close contact with the contacts; the positions of the S-pole magnet (1) on the upper contact (2) and the N-pole magnet (4) on the lower contact (3) can be interchanged. The utility model has the characteristics of simple structure, the effort that utilizes magnet magnetic field to produce acts on electric arc, makes it outwards move and lengthen, leaves the contact rapidly and extinguishes, reaches the arc extinguishing effect.
Description
Technical field
The utility model relates to the electric elements field, relates in particular to the electric elements contact.
Background technology
Components and parts such as used knife switch, circuit breaker, contactor, relay all are the break-makes that realizes circuit through contact in power industry; Contact breaks off moment; Surpass a certain numerical value if be disconnected the electric current of circuit; When being added in contact gap (or claim arc gap) voltage after the disconnection and surpassing a certain numerical value, will produce electric arc in the contact gap.Electric arc is actually the electric discharge phenomena that gas produces between contact under the highfield effect, can produce high temperature and send high light, with contact burning; And prolonged the break time of circuit; Can cause fire or other accidents when serious, therefore, extinguish arcs should take appropriate measures in electrical equipment.
Summary of the invention
The technical problem that the utility model will solve: a kind of arcing contact is provided, breaks off moment, the electric arc of generation can be extinguished very soon, avoid the contact damage or cause fire incident to solve electrical contact.
The utility model technical scheme: a kind of arcing contact comprises upper contact head and following contact; S utmost point magnet is arranged on the upper contact head, N utmost point magnet is arranged on the following contact, closely contact between magnet and the contact.
The position of the N utmost point magnet on S utmost point magnet on the upper contact head and the following contact can exchange.
The beneficial effect of the utility model: when contact was opened, the electric arc that in fracture, produces was under the effect of both positive and negative polarity magnetic field of magnets; According to the physics left hand rule; Electric arc will receive the effect of the power of a directed outside, makes its outwards motion and elongating, and speeds away contact and extinguishes.Avoided contact burning, problems such as prolongation break time of circuit in the useful life of having improved contact, avoid peril to take place.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
A kind of arcing contact comprises upper contact head 2 and following contact 3; S utmost point magnet 1 is arranged on the upper contact head 2, N utmost point magnet 4 is arranged on the following contact 3, closely contact between magnet and the contact.
The S utmost point magnet 1 on the upper contact head 2 and the position of the N utmost point magnet 4 on the following contact 3 can exchange.
When hot contact was separated, the electric arc that produces between the contact was along with contact separately elongates, owing on the contact both positive and negative polarity magnet is arranged up and down; Can produce magnetic field, according to the physics left hand rule, the effect of electrical conductor meeting generation power in magnetic field; Owing to the breakdown scratch start that produced of air at contact place this moment, at this moment electric arc is equivalent to electrical conductor, therefore is applicable to this principle; Under the effect of the power that produces in magnetic field; Electric arc outwards motion also elongates, and speeds away contact and extinguishes, and reaches arc quenching effect.
Claims (2)
1. an arcing contact comprises upper contact head (2) and following contact (3); It is characterized in that: S utmost point magnet (1) is arranged on the upper contact head (2), N utmost point magnet (4) is arranged on the following contact (3), closely contact between magnet and the contact.
2. according to the said a kind of arcing contact of claim 1, it is characterized in that: the position of the N utmost point magnet (4) on S utmost point magnet (1) on the upper contact head (2) and the following contact (3) can exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204147026U CN202230914U (en) | 2011-10-27 | 2011-10-27 | Arc extinguishing contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204147026U CN202230914U (en) | 2011-10-27 | 2011-10-27 | Arc extinguishing contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202230914U true CN202230914U (en) | 2012-05-23 |
Family
ID=46081492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204147026U Expired - Fee Related CN202230914U (en) | 2011-10-27 | 2011-10-27 | Arc extinguishing contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202230914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225893A (en) * | 2015-10-08 | 2016-01-06 | 常州市家虹包装有限公司 | Anti-loose protector |
-
2011
- 2011-10-27 CN CN2011204147026U patent/CN202230914U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225893A (en) * | 2015-10-08 | 2016-01-06 | 常州市家虹包装有限公司 | Anti-loose protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20131027 |