CN206194553U - Neotype breaker moving contact structure and circuit breaker thereof - Google Patents
Neotype breaker moving contact structure and circuit breaker thereof Download PDFInfo
- Publication number
- CN206194553U CN206194553U CN201621320821.4U CN201621320821U CN206194553U CN 206194553 U CN206194553 U CN 206194553U CN 201621320821 U CN201621320821 U CN 201621320821U CN 206194553 U CN206194553 U CN 206194553U
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- CN
- China
- Prior art keywords
- contact
- main
- breaker
- arc
- distance
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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 - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model belongs to the low voltage apparatus field, concretely relates to neotype breaker moving contact structure and circuit breaker thereof, including the contact frame, the contact frame is equipped with the pivot, installs parallelly connected conductor, contact spring in the contact frame to it includes a set of main contact and a set of arc contact to ally oneself with the conductor, main contact and arc contact all are equipped with the pivot hole that is used for passing the pivot, the contact position of main contact and contact position that the distance between the pivot hole is greater than or is less than the arc contact and the distance between the pivot hole. Current breaker moving contact only is equipped with a set of main contact, the utility model discloses under parallelly connected conductor quantity, constant width's the condition, set up a set of arc contact, it is main, arc contact effort when receiving magnetic repulsion is different with the arm of force, when short time withstand current, can appear one between main, the arc contact and take turns to scold and open the phenomenon, when the product bears short time withstand current, move, can not scold completely between the static contact division, therefore improved the short time withstand current ability of product.
Description
Technical field
The utility model belongs to Low Voltage Electrical Apparatus, and in particular to a kind of new moving contact of breaker structure and its open circuit
Device.
Background technology
The reason known perfectly well such as industry, in the actually used occasion of breaker, the self-resistance of breaker electric conductor and dynamic and static touches
Contact resistance between head plays an important role to the performance of the short circuit current of tolerance in short-term of breaker.For example, electric conductor from
Contact resistance between body resistance or dynamic and static contact is bigger, then be more easily caused caloric value when breaker bears short circuit current
Increase, causes contact melted or even the damage of dynamic and static contact.Improve the performance of tolerance short circuit current in short-term in the prior art often
It is the contact resistance between the self-resistance or dynamic and static contact by changing electric conductor, this is accomplished by the material to electric conductor
Or the Resistance Influence factor such as cross-sectional area is considered, or increase moving contact contact quantity, this will sacrifice cost and
The volume of breaker, is also exactly to increase touch spring pressure, change moving contact rotating shaft hole site etc., and this is to KA Rms
The improved effect of ability is general.
The content of the invention
The utility model is regarding to the issue above, there is provided a kind of new moving contact of breaker structure and its breaker.
Technical solution adopted in the utility model is as follows：A kind of new moving contact of breaker structure, including contact frame
Frame, the contact framework is provided with rotating shaft, and parallel conductor, touch spring, the parallel conductor bag are provided with the contact framework
One group of main contact and one group of arcing contact are included, the main contact and arcing contact are equipped with for the shaft hole through rotating shaft, the master
The distance between contact position and the shaft hole of the distance between contact position of contact and shaft hole more than or less than arcing contact.
The distance between first contact of the main contact and shaft hole less than arcing contact the second contact and shaft hole it
Between distance.
The contact framework includes contact-support frame, and the contact-support frame both sides are provided with side plate, and the rotating shaft is fixed
In side plate.
A kind of breaker, with operating mechanism, static contact, arc-chutes, shell, the breaker is provided with above-mentioned new
Moving contact of breaker structure.
The beneficial effects of the utility model are as follows：Existing moving contact of breaker is provided only with one group of main contact, and this practicality is new
Type sets one group of arcing contact in the case where original parallel conductor quantity, width are constant.The distance between contact and shaft hole become
Hour, the balancing force in contact electrodynamic repulsion force is improved, and electrodynamic repulsion force suffered by each moving contact piece can reduce；Conversely, each dynamic tactile
Electrodynamic repulsion force suffered by head piece can increase, and due to master, arcing contact, active force is different from the arm of force when by electromagnetic repulsion force, resistance in short-term
During by electric current, occur to denounce by turns for one between main, arcing contact and open phenomenon, and when one of which contact reprimand is opened, another group is touched
Head and is contacted in the presence of touch spring counter-force with static contact, so in the same time, always has one group of contact being powered, because
This, when product bears KA Rms, will not denounce out completely between dynamic and static contact, thus improve the resistance in short-term of product
By current capacity.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of the utility model.
In figure, 1, contact framework；101, contact-support frame；102, side plate；103, rotating shaft；2, main contact；3, arcing contact；4,
Contact position.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the utility model can be better described.
A kind of new moving contact of breaker structure, including contact framework 1, the contact framework 1 are provided with rotating shaft 103, institute
State in contact framework 1 and parallel conductor, touch spring be installed, it is characterised in that：The parallel conductor includes one group of He of main contact 2
One group of arcing contact 3, the main contact 2 and arcing contact 3 are equipped with for the shaft hole through rotating shaft 103, and the main contact 2 is touched
Put the distance between the contact position 4 and shaft hole of the distance between position 4 and shaft hole more than or less than arcing contact.It is existing
Moving contact of breaker is provided only with one group of main contact, and number of conductors is not quite similar according to different use requirements, as little as three, many
Even more many to more than ten, the utility model sets one group of arc and touches in the case where original parallel conductor quantity, width are constant
The distance between head, contact and shaft hole become hour, and the balancing force in contact electrodynamic repulsion force is improved, suffered by each moving contact piece
Electrodynamic repulsion force can reduce；Conversely, electrodynamic repulsion force suffered by each moving contact piece can increase.Main, arcing contact is made when by electromagnetic repulsion force
It is firmly different from the arm of force, in KA Rms, occur to denounce by turns for one between main, arcing contact and open phenomenon, and ought be wherein
When one group of contact reprimand is opened, another group of contact is contacted in the presence of touch spring counter-force with static contact, so with for the moment
Between, always there is one group of contact in energization, therefore, when product bears KA Rms, will not denounce completely between dynamic and static contact
Open, thus improve the KA Rms ability of product.
The distance between contact position 4 and shaft hole of the main contact 2 are less than the contact position 4 of arcing contact 3 and rotating shaft
The distance between hole.Compared to original one group of main contact, the distance between its contact position of increased arcing contact and shaft hole are more
Greatly, the excess of stroke of such arcing contact can be more than conventional main contact, and compared to routine, such scheme makes product in disjunction high current
When be easier striking and enter to carry out arc chamber, electric arc enters arc-chutes when accelerating product disjunction, improves the breaking capacity of product.
The contact framework 1 includes contact-support frame 101, and the both sides of contact-support frame 101 are provided with side plate 102, institute
State rotating shaft 103 and be fixed on side plate 102.
A kind of breaker, operating mechanism, static contact, arc-chutes, shell, the breaker are provided with above-mentioned new disconnected
Road device moving contact structure.
A kind of embodiment of the present utility model is the foregoing is only, not for limiting protection domain of the present utility model；
Protection domain of the present utility model is limited by the claim in claims, and it is every according to utility model made it is equivalent
Change and modification, all within the protection domain of the utility model patent.
Claims (4)
1. a kind of new moving contact of breaker structure, including contact framework（1）, the contact framework（1）It is provided with rotating shaft
（103）, the contact framework（1）Parallel conductor, touch spring are inside installed, it is characterised in that：The parallel conductor includes one
Group main contact（2）With one group of arcing contact（3）, the main contact（2）And arcing contact（3）It is equipped with for through rotating shaft（103）'s
Shaft hole, the main contact（2）Contact position（4）Contact position with the distance between shaft hole more than or less than arcing contact
（4）The distance between with shaft hole.
2. new moving contact of breaker structure according to claim 1, it is characterised in that：The main contact（2）Touch
Point position（4）Arcing contact is less than with the distance between shaft hole（3）Contact position（4）The distance between with shaft hole.
3. new moving contact of breaker structure according to claim 1, it is characterised in that：The contact framework（1）Bag
Include contact-support frame（101）, the contact-support frame（101）Both sides are provided with side plate（102）, the rotating shaft（103）It is fixed on
Side plate（102）.
4. a kind of breaker, with operating mechanism, static contact, arc-chutes, shell, it is characterised in that：The breaker is provided with
New moving contact of breaker structure described in claim any one of 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621320821.4U CN206194553U (en) | 2016-12-05 | 2016-12-05 | Neotype breaker moving contact structure and circuit breaker thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621320821.4U CN206194553U (en) | 2016-12-05 | 2016-12-05 | Neotype breaker moving contact structure and circuit breaker thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206194553U true CN206194553U (en) | 2017-05-24 |
Family
ID=58723348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621320821.4U Expired - Fee Related CN206194553U (en) | 2016-12-05 | 2016-12-05 | Neotype breaker moving contact structure and circuit breaker thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206194553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676133A (en) * | 2019-08-30 | 2020-01-10 | 德力西电气有限公司 | Moving contact of circuit breaker with arc contact |
-
2016
- 2016-12-05 CN CN201621320821.4U patent/CN206194553U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676133A (en) * | 2019-08-30 | 2020-01-10 | 德力西电气有限公司 | Moving contact of circuit breaker with arc contact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20201205 |