CN201717214U - Circuit breaker static contact - Google Patents
Circuit breaker static contact Download PDFInfo
- Publication number
- CN201717214U CN201717214U CN2010201976850U CN201020197685U CN201717214U CN 201717214 U CN201717214 U CN 201717214U CN 2010201976850 U CN2010201976850 U CN 2010201976850U CN 201020197685 U CN201020197685 U CN 201020197685U CN 201717214 U CN201717214 U CN 201717214U
- Authority
- CN
- China
- Prior art keywords
- arc
- static contact
- circuit breaker
- fixed contact
- arc plate
- 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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Abstract
The utility model relates to a circuit breaker static contact, comprising a static contact rod and a static contact; and the front end of the static contact is provided with an arc-guide plate. The circuit breaker static contact is characterized in that the rear end of the static contact is provided with an arc-blocking plate made of a melamine glass cloth plate. As the front end of the static contact is provided with the arc-guide plate, and the rear end of the circuit breaker static contact is provided with the arc-blocking plate made of the melamine glass cloth plate, in the interruption, the arc-guide plate made of the melamine glass cloth plate generates gas to cool an electric arc and drive the electric arc to enter an arc-extinguishing grating piece for extinguishing, thus improving the effect of guiding the parted electric arc into the arc-extinguishing grating piece.
Description
Technical field
The utility model relates to low voltage electrical equipment, specifically is a kind of circuit breaker fixed contact that uses in low-voltage circuit breaker.
Background technology
Circuit breaker fixed contact in the low-voltage circuit breaker generally is made up of stationary contact bar and fixed contact, prior art is provided with at the front end of fixed contact and leads the arc plate, the electric arc that produces during with the circuit breaker disjunction imports arc extinguishing grid pieces and extinguishes, and the arc extinction performance that improves circuit breaker is played a role.
Summary of the invention
The purpose of this utility model is improvements over the prior art, proposes a kind of circuit breaker fixed contact that breaking arc imports the arc extinguishing grid pieces effect that improves.
The purpose of this utility model is achieved in that a kind of circuit breaker fixed contact of the present utility model, it comprises stationary contact bar and fixed contact, be provided with at the front end of fixed contact and lead the arc plate, it is characterized in that being provided with the retaining arc plate that the melamine glass-cloth board is made in the rear end of fixed contact.
Circuit breaker fixed contact of the present utility model, owing to being provided with, the front end at fixed contact leads the arc plate, be provided with the retaining arc plate that the melamine glass-cloth board is made in the rear end of fixed contact, when disjunction, the retaining arc plate that the melamine glass-cloth board is made produces gas, cooling electric arc, driving electric arc enters arc extinguishing grid pieces fast and extinguishes, thereby improves the effect that breaking arc imports arc extinguishing grid pieces.
Description of drawings
Fig. 1 is the structural representation of circuit breaker fixed contact of the present utility model.
Embodiment
The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.
As Fig. 1, a kind of circuit breaker fixed contact of the present utility model, it comprises stationary contact bar 1 and fixed contact 4, be provided with at the front end of fixed contact 4 and lead arc plate 2, lead arc plate 2 usefulness screws 3 and be connected stationary contact bar 1 and substrate 6, it is characterized in that being provided with the retaining arc plate 7 that the melamine glass-cloth board is made in the rear end of fixed contact 4, retaining arc plate 7 usefulness rivets 5 are riveted on stationary contact bar 1 and substrate 6.
Claims (1)
1. circuit breaker fixed contact, it comprises stationary contact bar (1) and fixed contact (4), is provided with at the front end of fixed contact (4) and leads arc plate (2), it is characterized in that being provided with in the rear end of fixed contact (4) the retaining arc plate (7) that the melamine glass-cloth board is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201976850U CN201717214U (en) | 2010-05-21 | 2010-05-21 | Circuit breaker static contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201976850U CN201717214U (en) | 2010-05-21 | 2010-05-21 | Circuit breaker static contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201717214U true CN201717214U (en) | 2011-01-19 |
Family
ID=43463221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201976850U Expired - Fee Related CN201717214U (en) | 2010-05-21 | 2010-05-21 | Circuit breaker static contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201717214U (en) |
-
2010
- 2010-05-21 CN CN2010201976850U patent/CN201717214U/en not_active Expired - Fee Related
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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: 20110119 Termination date: 20120521 |