CN202585285U - Action mechanism of breaker - Google Patents
Action mechanism of breaker Download PDFInfo
- Publication number
- CN202585285U CN202585285U CN 201220123586 CN201220123586U CN202585285U CN 202585285 U CN202585285 U CN 202585285U CN 201220123586 CN201220123586 CN 201220123586 CN 201220123586 U CN201220123586 U CN 201220123586U CN 202585285 U CN202585285 U CN 202585285U
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- CN
- China
- Prior art keywords
- handle
- connecting rod
- connection rod
- upper connection
- circuit breaker
- 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 - Lifetime
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses an action mechanism of breaker, comprising a handle, an upper connection rod and a movable contact, wherein while rotating, the handle drives the upper connection rod and the movable contact to rotate to realize switch-on or switch-off. The action mechanism further comprises a tripping pin and a lock catch, when the tripping pin and the lock catch are separated, the upper connection rod and the movable contact rotate to realize switch-off; no connection component is arranged between the handle and the upper connection rod, and while switching off, the handle and the upper connection rod rotate respectively and independently; the handle is provided with a swinging arm in a protruding manner, and while the handle is rotated to switch on, the lower end of the swinging arm is in contact with the upper surface of the upper connection rod and sliding friction occurs, so that the upper connection rod and the movable contact rotate. The action mechanism of breaker disclosed by the utility model cancels the connection component between the handle and the upper connection rod, while switching on, the swinging arm protruding on the handle can be in contact with the upper connection rod to push the upper connection rod to move; while switching off, the handle and the upper connection rod can rotate respectively and independently without any mutual friction or restriction and mutual interference, so as to improve the breaking speed of breaker.
Description
Technical field
The utility model relates to the actuating mechanism that circuit breaker is realized the divide-shut brake motion, belongs to the low-voltage electrical apparatus field.
Background technology
At present; The actuating mechanism of common miniature circuit breaker generally is made up of handle, U-shaped connecting rod, drive link, moving contact, tripping and snap close etc., when pulling handle, drives drive link and moving contact motion through the U-shaped connecting rod; Make the contact of moving contact and fixed contact or separate, realize closing a floodgate or separating brake; When tripping mechanism was freed tripping and the snap close of mutual fastening, actuating mechanism also can be moved, and moving contact is separated with fixed contact, realized separating brake.
A kind of circuit breaker handle syndeton is disclosed such as Chinese utility model patent 201020506403.0; Comprise the handle connecting axle, be socketed in said handle connecting axle bottom be used for reseting handle spring, be connected U-shaped connecting rod between handle and the drive link etc., handle needs to drive drive link through the U-shaped connecting rod and moves with moving contact.
The actuating mechanism of circuit breaker and arc-control device have decisive influence to its breaking capacity; Such as, because the restriction of mechanism arrangement and arc-control device, the breaking capacity of conventional C45 Series Circuit Breakers is 63A/230V; Circuit breaker is when disjunction, and the intrinsic time of actuating mechanism motion is longer.Through evidence, the mechanism of conventional C45 product is generally 6-8ms the intrinsic time, and this deposits big difficulty when electric arc is gone out in suction.
The utility model content
The technical problem that the utility model will solve provides a kind of actuating mechanism of circuit breaker, can improve the breaking speed of circuit breaker, to overcome the above-mentioned defective of prior art.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of actuating mechanism of circuit breaker, and comprise handle, go up connecting rod and moving contact, when handle rotates, drive and go up connecting rod and moving contact rotation, realize closing a floodgate or separating brake; Also comprise tripping and snap close, when tripping separated with snap close, last connecting rod and moving contact rotated, and realized separating brake; Do not have connecting elements between said handle and the last connecting rod, during separating brake, handle and last connecting rod be independent rotation separately; Swing arm of protrusion on the said handle, when turning handle closed a floodgate, the lower end of said swing arm contacted with the upper surface of last connecting rod and sliding friction takes place, and connecting rod and moving contact are rotated.
Preferably, the rear surface of said swing arm is a smooth curved surface.
Preferably, said swing arm and handle are one-body molded.
Preferably, be connected with the handle back-moving spring on the said handle, said handle back-moving spring applies the torque of rotating to the separating brake direction to handle.
Preferably, said going up on the connecting rod is connected with the connecting rod back-moving spring, and the said connecting rod back-moving spring of going up applies the torque of rotating to the separating brake direction to last connecting rod.
Preferably, also comprise a support, said moving contact is rotatably connected on the support.
The utility model has been cancelled the connecting elements (such as the U-shaped connecting rod) between handle and the last connecting rod, and handle and last connecting rod are separated, and during combined floodgate, the swing arm of protruding on the handle can contact with last connecting rod, link motion in the promotion; When circuit breaks down and during the dropout separating brake, handle and last connecting rod be independent rotation separately, there are not friction or restriction each other, can the phase mutual interference, thus improved the breaking speed of circuit breaker.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.
Fig. 1 is the sketch map of the actuating mechanism of the utility model circuit breaker in "on" position.
Fig. 2 is the sketch map of the actuating mechanism of the utility model circuit breaker at gate-dividing state.
Embodiment
As shown in Figure 1, the actuating mechanism of the utility model circuit breaker comprises that handle 1, last connecting rod 3 and moving contact 7 are installed in the pedestal 2, but does not have the U-shaped connecting rod between handle 1 and the last connecting rod 3, and other connecting elements is not set yet, but from swing arm 11 of handle protrusion.In this preferred embodiment, this swing arm 11 is integrated with handle 1, and moving contact 7 is rotatably connected on the support 6.
Under gate-dividing state, as shown in Figure 2, handle 1 comprises that swing arm 11 does not all contact with last connecting rod 3, separates fully.
Have only when turning handle closes a floodgate; Like the clockwise direction turning handle 1 of Fig. 1, the lower end 111 of swing arm just can contact and take place sliding friction with the upper surface 31 of last connecting rod, rotates thereby promote to go up connecting rod 3; Driving snap close 5, support 6 and moving contact 7 by connecting rod again moves together; This moment, snap close 5 fastened with tripping 4, finally made moving contact 7 and fixed contact 8 closed together, accomplished whole making process.Under "on" position, realize static locking between the lower end 111 of swing arm and the upper surface 31 of last connecting rod.For the ease of slide relative, the surface of the lower end 111 of swing arm preferably is made as smooth curved surface.It is thus clear that, in making process, the utility model can realize with prior art in have the structure identical functions of U-shaped connecting rod.
The advantage of the utility model is mainly reflected in the separating brake process.As shown in Figure 2, during breaker open operation, the thrust that tripping 4 receives tripping mechanism clockwise rotates, and causes snap close 5 to separate with tripping 4, and mechanism's release is broken off.In the moment of release; Connecting rod 3 was rotated counterclockwise a minute angle (0.3 degree) before this under the effect of snap close 5; The locking effect of 3 pairs of handles of connecting rod is removed, owing to be connected with handle back-moving spring (not shown) on the handle 1, the handle back-moving spring applies the torque of rotating to the separating brake direction to handle; Therefore handle 1 independent rotation under the effect of handle back-moving spring is back to the separating brake point rapidly; Meanwhile; Owing to be connected with connecting rod back-moving spring (not shown) on the last connecting rod 3; Last connecting rod back-moving spring applies the torque of rotating to the separating brake direction to last connecting rod 3; Make connecting rod 3 by clockwise direction independent rotation shown in Figure 2, drive moving contact 7 and open, accomplish the separating brake overall process with fixed contact 8.In the separating brake process,, there is not the possibility of friction or restriction each other because handle 1 is the cell cube of independent rotation with last connecting rod 3; So; Opening velocity can obviously rise, and break-time can shorten 2ms than the mechanism that prior art has the U-shaped connecting rod, thereby breaking capacity is significantly risen.
Claims (6)
1. the actuating mechanism of a circuit breaker comprises handle (1), goes up connecting rod (3) and moving contact (7), when handle (1) rotates, drives to go up connecting rod (3) and moving contact (7) rotation, realizes closing a floodgate or separating brake; Also comprise tripping (4) and snap close (5), when tripping (4) and snap close (5) when separating, last connecting rod (3) and moving contact (7) rotate, and realize separating brake; It is characterized in that not having connecting elements between said handle (1) and the last connecting rod (3), during separating brake, handle (1) and last connecting rod (3) be independent rotation separately; Said handle (1) is gone up a protrusion swing arm (11), and when turning handle (1) closed a floodgate, the lower end of said swing arm (111) contacted with the upper surface (31) of last connecting rod and sliding friction takes place, and connecting rod (3) and moving contact (7) are rotated.
2. the actuating mechanism of circuit breaker according to claim 1 is characterized in that, the lower end of said swing arm (111) surface is a smooth curved surface.
3. the actuating mechanism of circuit breaker according to claim 1 is characterized in that, said swing arm (11) is one-body molded with handle (1).
4. the actuating mechanism of circuit breaker according to claim 1 is characterized in that, said handle is connected with the handle back-moving spring on (1), and said handle back-moving spring applies the torque of rotating to the separating brake direction to handle (1).
5. the actuating mechanism of circuit breaker according to claim 1 is characterized in that, said going up on the connecting rod (3) is connected with the connecting rod back-moving spring, and the said connecting rod back-moving spring of going up applies the torque of rotating to the separating brake direction to last connecting rod (3).
6. the actuating mechanism of circuit breaker according to claim 1 is characterized in that, also comprises a support (6), and said moving contact (7) is rotatably connected on the support (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220123586 CN202585285U (en) | 2012-03-28 | 2012-03-28 | Action mechanism of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220123586 CN202585285U (en) | 2012-03-28 | 2012-03-28 | Action mechanism of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202585285U true CN202585285U (en) | 2012-12-05 |
Family
ID=47254670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220123586 Expired - Lifetime CN202585285U (en) | 2012-03-28 | 2012-03-28 | Action mechanism of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202585285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367054A (en) * | 2012-03-28 | 2013-10-23 | 上海良信电器股份有限公司 | Circuit breaker motion mechanism |
-
2012
- 2012-03-28 CN CN 201220123586 patent/CN202585285U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367054A (en) * | 2012-03-28 | 2013-10-23 | 上海良信电器股份有限公司 | Circuit breaker motion mechanism |
| CN103367054B (en) * | 2012-03-28 | 2016-06-08 | 上海良信电器股份有限公司 | The actuating mechanism of isolating switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |