CN202189740U - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- CN202189740U CN202189740U CN2011203334006U CN201120333400U CN202189740U CN 202189740 U CN202189740 U CN 202189740U CN 2011203334006 U CN2011203334006 U CN 2011203334006U CN 201120333400 U CN201120333400 U CN 201120333400U CN 202189740 U CN202189740 U CN 202189740U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- handle
- contact
- arc extinguishing
- iron core
- 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 discloses a circuit breaker which belongs to the technical field of electrical appliances. Aiming at providing a circuit breaker which has a more compact structure and is more flexible in reset, the key points of the technical scheme are as follows: the circuit breaker comprises a shell; the shell is internally provided with an arc extinguishing component, a contact component, an electromagnetic tripping device and an operation component; the arc extinguishing component comprises an arc extinguishing chamber and an arc striking piece; the contact component comprises a fixed contact and a moving contact; the electromagnetic tripping device comprises an iron core and a coil sleeved outside the iron core; the operation component comprises a handle, a U-shaped pin, a tripping catch, a support, a lock catch and a spring; and the handle of the operation mechanism is provided with a return spring, and the return spring is arranged inside the handle.
Description
Technical field
The utility model relates to a kind of technical field of electric appliances, and more particularly, it relates to a kind of circuit breaker.
Background technology
Circuit breaker is meant to close and closes, carries and cut-off the electric current under the normal loop condition, and can close and close, in official hour, carry and cut-off the switching device of the electric current unusual loop condition (comprising short circuit condition) under or refer in order to cut off or the electrical equipment of operating current in the high-tension circuit or fault current is closed in the pass.Promptly under normal condition, guarantee the unimpeded of circuit; When circuit breaks down when producing short circuit current or causing overcurrent by overload, make electrical transmission circuit and supply network realize separating.
At present, circuit breaker comprises shell, is provided with arc extinguishing assembly, contact assembly, magnetictrip and operating assembly in the shell; The arc extinguishing assembly comprises arc control device and striking part; Contact assembly comprises fixed contact and moving contact; Magnetictrip comprises iron core and the coil that is sheathed on the iron core outside; Operating assembly comprises handle, U type pin, tripping, bearing, snap close, spring; Handle is used to carry out the switch work to circuit breaker, but has the malfunctioning or blunt shortcoming of working of handle, has influenced the work of circuit breaker.Traditional striking part is made up of yoke and stationary contact bar two parts, need increase process time through a point welding process, makes trouble.
Summary of the invention
To the deficiency that prior art exists, the purpose of the utility model is to provide that a kind of structure is compact more, return circuit breaker more flexibly.
For realizing above-mentioned purpose, the utility model provides following technical scheme: a kind of circuit breaker, comprise shell, and be provided with arc extinguishing assembly, contact assembly, magnetictrip and operating assembly in the shell; The arc extinguishing assembly comprises arc control device and striking part; Contact assembly comprises fixed contact and moving contact; Magnetictrip comprises iron core and the coil that is sheathed on the iron core outside; Operating assembly comprises handle, U type pin, tripping, bearing, snap close, spring; The handle of said operating mechanism is provided with back-moving spring.
Through adopting technique scheme, strengthened the compactedness of handle, make handle work more reliable, simultaneously, also more flexible when the handle return.
The utility model further is set to: said back-moving spring places handle inner.
Through adopting technique scheme, further strengthen the compactedness of handle.
The utility model further is set to: described striking part is for being wholely set.
Through adopting technique scheme, saved a point welding process.
Description of drawings
Fig. 1 is the structural representation of the utility model circuit breaker embodiment.
Embodiment
With reference to Fig. 1 the utility model circuit breaker embodiment is further specified.
A kind of circuit breaker comprises shell 1, is provided with arc extinguishing assembly 11, contact assembly 12, magnetictrip 13 and operating assembly 14 in the shell 1; Arc extinguishing assembly 11 comprises arc control device 111 and striking part 112; Contact assembly 12 comprises fixed contact 121 and moving contact 131; Magnetictrip 13 comprises iron core 131 and the coil 132 that is sheathed on iron core 131 outsides; Operating assembly 14 comprises handle 141, U type pin 142, tripping 143, bearing 144, snap close 145; The handle 141 of said operating mechanism 14 is provided with back-moving spring 1411, and said back-moving spring 1411 places handle 141 inside.Back-moving spring 1411 the compactedness of having strengthened handle 141 is set, make handle 141 work more reliable, simultaneously, also more flexible when handle 141 returns.
Described striking part 112 is for being wholely set (what need explain is, conventional striking part 112 is made up of yoke and stationary contact bar two parts, need be through a point welding process, for making the operation saving, present embodiment is preferred, striking part 112 is for being wholely set) here.
Claims (3)
1. a circuit breaker comprises shell, is provided with arc extinguishing assembly, contact assembly, magnetictrip and operating assembly in the shell; The arc extinguishing assembly comprises arc control device and striking part; Contact assembly comprises fixed contact and moving contact; Magnetictrip comprises iron core and the coil that is sheathed on the iron core outside; Operating assembly comprises handle, U type pin, tripping, bearing, snap close, spring; It is characterized in that: the handle of said operating mechanism is provided with back-moving spring.
2. circuit breaker according to claim 1 is characterized in that: said back-moving spring places handle inner.
3. circuit breaker according to claim 1 and 2 is characterized in that: described striking part is for being wholely set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203334006U CN202189740U (en) | 2011-09-06 | 2011-09-06 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203334006U CN202189740U (en) | 2011-09-06 | 2011-09-06 | Circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202189740U true CN202189740U (en) | 2012-04-11 |
Family
ID=45921176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203334006U Expired - Fee Related CN202189740U (en) | 2011-09-06 | 2011-09-06 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202189740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681133A (en) * | 2012-08-31 | 2014-03-26 | 西门子公司 | Switch mechanism and motor protection switch device |
-
2011
- 2011-09-06 CN CN2011203334006U patent/CN202189740U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681133A (en) * | 2012-08-31 | 2014-03-26 | 西门子公司 | Switch mechanism and motor protection switch device |
| CN103681133B (en) * | 2012-08-31 | 2017-07-04 | 西门子公司 | The protection switch equipment of switching mechanism and electromechanics |
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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: 20120411 Termination date: 20140906 |
|
| EXPY | Termination of patent right or utility model |