CN205881843U - Double break dotted shell breaker moving contact scolds out dead device of position card - Google Patents
Double break dotted shell breaker moving contact scolds out dead device of position card Download PDFInfo
- Publication number
- CN205881843U CN205881843U CN201620760416.8U CN201620760416U CN205881843U CN 205881843 U CN205881843 U CN 205881843U CN 201620760416 U CN201620760416 U CN 201620760416U CN 205881843 U CN205881843 U CN 205881843U
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- moving contact
- fixed
- rotary body
- rotator
- spring
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Abstract
The utility model discloses a double break dotted shell breaker moving contact scolds out dead device of position card, including the rotator with install in the moving contact of rotator inner chamber, the rotator is central symmetrical structure, the center of rotator is fixed with the center pin, and the center pin runs through the mounting hole of moving contact, respectively is provided with the cam surface in rotator inner chamber both sides, offered the sliding tray on the moving contact, be equipped with the sliding shaft on the sliding tray, the sliding shaft uses the moving contact respectively to be equipped with the spring as the both sides at center, the other end of spring is fixed on the fixed axle, the fixed axle is fixed in in the pivot. The utility model is simple and reasonable in structure, it is easy to make, the dependable performance.
Description
Technical field
This utility model relates to a kind of breaker with double breaks and plastic case trigger device, particularly relates to a kind of double breaks and plastic case and breaks
Road device moving contact scolds the stuck device in open position, belongs to low-voltage electrical apparatus manufacturing technology field.
Background technology
The disjunction of breaker of plastic casing and combined floodgate mainly rely on separating and Guan Bi, normally between moving contact and static contact
During use, need to ensure to have between moving contact and static contact certain pressure, reduce the contact resistance between dynamic/static contact, thus
The temperature rise making chopper meets use requirement.Along with the development of electrical network, require more to come to the short circuit breaking capacity of chopper
The highest, one of double breaking points form developing direction becoming breaker of plastic casing of breaker of plastic casing.The shell of moulding of high breaking capacity breaks
Road device relies primarily on when short circuit current reaches certain value, and moving contact of breaker is scolded out rapidly by the effect of electrodynamic repulsion force, stops
The continuation of short circuit current increases.After moving contact is scolded and reached certain distance, owing to the resistance between dynamic/static contact increases, short circuit current
Reduce, moving contact can move to make position, cause arc reignition, make fault current can not by quick disjunction, thus can to break
Road device causes serious infringement.
Summary of the invention
Existence in view of the above problems, the purpose of this utility model is to provide a kind of breaker with double breaks and plastic case and scolds open position
Stuck device, it is possible not only to effectively stop contact to re-close after scolding out, and substantially increases the breaking capacity of chopper.
In order to realize object above, this utility model have employed techniques below scheme:
A kind of breaker with double breaks and plastic case moving contact described in the utility model scolds the stuck device in open position, including rotary body
Be installed on the moving contact of rotary body inner chamber, it is characterized in that, rotary body is centrosymmetric structure, and the center of described rotary body is fixed
There are central shaft, central shaft to run through the installing hole of moving contact, are each provided with cam surface in rotary body inner chamber both sides；On described moving contact
Offer sliding tray, equipped with sliding axle on sliding tray, sliding axle both sides centered by moving contact respectively equipped with spring, described bullet
The other end of spring is fixed on fixing axle, and described fixing axle is fixed in rotating shaft.
This utility model is simple and reasonable for structure, easy to manufacture, dependable performance.When moving contact is by rated current, can have
Effect Guan Bi, when moving contact is by short-circuit current, moving contact can be scolded out rapidly and stuck in the groove of cam surface, be prevented
Moving contact re-closes, it is ensured that the reliability of chopper disjunction, improves the short circuit breaking capacity of chopper.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model
Fig. 2 is the schematic diagram of moving contact of the present utility model
Fig. 3 is the schematic diagram under moving contact closure state of the present utility model
Fig. 4 is the schematic diagram that moving contact of the present utility model scolds open position
Wherein: 1-rotary body 100-cam surface 101-groove 102-straightway 2-moving contact 200-installing hole 3-sliding axle 4-
Spring 5-central shaft 6-fixes axle 7-sliding tray
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model concrete structure and embodiment are described in detail:
This kind of breaker with double breaks and plastic case moving contact described in the utility model scolds the stuck device in open position, including rotating
Body 1 and run through the moving contact 2 of rotary body inner chamber, device entirety is centrosymmetric structure, is installed in the rotating shaft of chopper, can be with
Rotating shaft rotates together, it is achieved the normal divide-shut brake of chopper, and the center of described rotary body 1 is fixed with central shaft 5, and described is dynamic
Contact 2 center has installing hole 200, is installed on central shaft 5 by moving contact 2 by installing hole 200, and moving contact 2 can be around center
Axle 5 rotates；Described rotary body 1 inner chamber both sides, are each provided with cam surface 100, and cam surface 100 side is groove 101, and side is straight
Line segment 102, described moving contact 2 offers sliding tray 7, and equipped with sliding axle 3 on described sliding tray 7, sliding axle 3 is with moving contact 2
Centered by both sides respectively equipped with spring 4, the other end of spring 4 is fixed on fixing axle 6, and fixing axle 6 is fixed on rotary body 1.
When circuit is normal, moving contact 2 be in closure state by normal current time, sliding axle 3 not with cam surface 100
Straightway 102 contacts, and moving contact 2, under the effect of spring 4, reliably closes with outside static contact；When line fault short circuit, dynamic
Contact 2 is scolded out rapidly under electrodynamic repulsion force effect, and sliding axle 3 is followed moving contact 2 and moved together, contacts with cam 100 and final
Under the effect of spring 4 stuck in groove 101, therefore when short circuit current reduces, moving contact 2 will not be because electrodynamic repulsion force reduces
Move to closing direction again, it is achieved thereby that the successful disjunction of short-circuit current, improve the breaking capacity of chopper.
Claims (1)
1. breaker with double breaks and plastic case moving contact scolds the stuck device in open position, including rotary body and be installed on rotary body inner chamber
Moving contact, it is characterized in that, rotary body is centrosymmetric structure, and the center of described rotary body is fixed with central shaft, and central shaft passes through
Wear the installing hole of moving contact, be each provided with cam surface in rotary body inner chamber both sides；Offer sliding tray on described moving contact, sliding
Equipped with sliding axle on dynamic groove, sliding axle both sides centered by moving contact are respectively equipped with spring, and the other end of described spring is fixed on
On fixing axle, described fixing axle is fixed in rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620760416.8U CN205881843U (en) | 2016-07-15 | 2016-07-15 | Double break dotted shell breaker moving contact scolds out dead device of position card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620760416.8U CN205881843U (en) | 2016-07-15 | 2016-07-15 | Double break dotted shell breaker moving contact scolds out dead device of position card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205881843U true CN205881843U (en) | 2017-01-11 |
Family
ID=57697961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620760416.8U Active CN205881843U (en) | 2016-07-15 | 2016-07-15 | Double break dotted shell breaker moving contact scolds out dead device of position card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205881843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107578967A (en) * | 2017-10-24 | 2018-01-12 | 法泰电器（江苏）股份有限公司 | A kind of breaker of plastic casing rotary type double-breakpoint structure of contact terminal |
-
2016
- 2016-07-15 CN CN201620760416.8U patent/CN205881843U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107578967A (en) * | 2017-10-24 | 2018-01-12 | 法泰电器（江苏）股份有限公司 | A kind of breaker of plastic casing rotary type double-breakpoint structure of contact terminal |
| CN107578967B (en) * | 2017-10-24 | 2020-08-14 | 法泰电器（江苏）股份有限公司 | Rotary double-breakpoint contact structure of molded case circuit breaker |
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|---|---|---|---|
| GR01 | Patent grant |