CN210110675U - Energy storage mechanism of circuit breaker - Google Patents
Energy storage mechanism of circuit breaker Download PDFInfo
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- CN210110675U CN210110675U CN201920986168.2U CN201920986168U CN210110675U CN 210110675 U CN210110675 U CN 210110675U CN 201920986168 U CN201920986168 U CN 201920986168U CN 210110675 U CN210110675 U CN 210110675U
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- roller shaft
- spring seat
- roller
- circuit breaker
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Abstract
The utility model discloses a circuit breaker energy storage mechanism, which comprises two oppositely arranged side plates and a roller shaft arranged between the two side plates, wherein two ends of the roller shaft are arranged on the oppositely arranged side plates, the roller shaft can move back and forth under the action of a folding driving mechanism, and an energy storage assembly can realize energy storage and energy release in the movement process of the roller shaft; the folding driving mechanism comprises a cantilever, one end of the cantilever is sleeved on the roller shaft, the other end of the cantilever is hinged with the compression frame, and the compression frame is arranged on the side plate by utilizing the rotating shaft and can rotate around the rotating shaft; the energy storage assembly comprises a movable spring seat, the movable spring seat is linked with the roller shaft, one end of the energy storage spring group is connected with the movable spring seat, and the other end of the energy storage spring group is connected with the fixed spring seat. The utility model adopts the folding driving mechanism to pull the movable spring seat to compress the energy storage spring group, occupies small space, is beneficial to arrangement, and effectively reduces the volume of the energy storage compression mechanism; the movable spring seat compresses the energy storage spring group in a linear mode, and the energy loss of the energy storage spring group is reduced.
Description
Technical Field
The utility model belongs to the circuit breaker field, concretely relates to circuit breaker energy storage mechanism.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breaker generally comprises a contact system, an arc extinguishing system, an operating mechanism, a release, a shell and the like, wherein the operating mechanism is used for completing the opening and closing operation of the circuit breaker and keeping the circuit breaker at the opening and closing position.
At present, the operating mechanisms of most circuit breakers are mechanical operating mechanisms, energy storage springs are used for storing energy, and when the energy storage springs release energy, the closing connecting rods are driven to rotate, so that the closing function is realized. For the energy storage spring, it is very important to reduce the energy loss in the compression and release processes of the energy storage spring as much as possible, and in the existing energy storage compression technology, the energy loss of the energy storage spring is large, the utilization rate is not high, and meanwhile, in order to meet the sufficient compression stroke of the spring, the volume of the energy storage compression mechanism is large, and the arrangement is not facilitated.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model aims at providing a little and less circuit breaker energy storage mechanism of volume of energy storage spring energy loss.
Therefore, the utility model discloses the technical scheme who adopts does: an energy storage mechanism of a circuit breaker comprises two oppositely arranged side plates and a roller shaft arranged between the two side plates, wherein two ends of the roller shaft are arranged on the oppositely arranged side plates, the roller shaft can move back and forth under the action of a folding driving mechanism, and an energy storage assembly can realize energy storage and energy release in the movement process of the roller shaft;
the folding driving mechanism comprises a cantilever, one end of the cantilever is sleeved on the roller shaft, the other end of the cantilever is hinged with a compression frame, and the compression frame is arranged on the side plate by using a rotating shaft and can rotate around the rotating shaft;
the energy storage assembly comprises a movable spring seat, the movable spring seat is linked with the roller shaft, one end of the energy storage spring group is connected with the movable spring seat, and the other end of the energy storage spring group is connected with the fixed spring seat.
Preferably, both ends of the roller shaft are installed in the strip-shaped holes on the oppositely arranged side plates and can slide in the strip-shaped holes. By adopting the structure, the strip-shaped holes are used for limiting the moving direction and the moving distance of the roller shaft, and the structure is simple and easy to realize.
Preferably, the roller is arranged on the roller shaft and can rotate, and the roller can be linked with the opening and closing lever in the rotating process. By adopting the structure, when the energy storage spring releases energy, the roller hits the opening and closing lever to realize closing, and sliding friction is replaced by rolling friction between the roller and the opening and closing lever, so that the energy utilization rate is improved, and the part abrasion is reduced.
Preferably, two ends of the fixed spring seat are fixedly arranged on the oppositely arranged side plates. By adopting the structure, the mounting structure of the fixed spring seat is stable and reliable.
Preferably, the sliding direction of the roller shaft in the strip-shaped hole is the same as the compression and release direction of the energy storage spring group. By adopting the structure, the energy storage spring set is effectively compressed and released in a linear mode.
Preferably, the movable spring seat is located on one side of the roller shaft and is provided with a roller shaft embedding groove and a roller abdicating groove, the roller shaft is embedded in the roller shaft embedding groove, and the roller is embedded in the roller abdicating groove and can rotate in the roller abdicating groove. By adopting the structure, the mounting structure of the movable spring seat and the roller shaft is stable and reliable, and displacement is prevented.
Preferably, the energy storage spring group comprises a large spring and a small spring which are coaxially arranged. By adopting the structure, the energy storage is large, and the closing time is effectively shortened.
Preferably, a first positioning step which is matched with the large spring is arranged at one end, away from the roller shaft, of the movable spring seat, a second positioning step which is matched with the small spring is arranged above the fixed spring seat, the large spring is sleeved on the first positioning step, and the small spring is sleeved on the second positioning step. By adopting the structure, the installation and the disassembly are convenient, the large spring and the small spring are guided mutually, and the radial deformation is not easy to occur.
The utility model has the advantages that: the folding driving mechanism is adopted to pull the movable spring seat to compress the energy storage spring group, so that the occupied space is small, the arrangement is facilitated, and the volume of the energy storage compression mechanism is effectively reduced; the movable spring seat compresses the energy storage spring group in a linear mode, and the energy loss of the energy storage spring group is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention (except for one side plate);
fig. 3 is a side view of the present invention (except for one side plate);
FIG. 4 is a schematic structural view of a movable spring seat, a fixed spring seat and an energy storage spring group;
fig. 5 is a schematic structural view of the compression bracket and the rotation shaft.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
as shown in fig. 1 to 3, in the energy storage mechanism for the circuit breaker, two side plates 1 are oppositely arranged, a roller shaft 2, a folding driving mechanism 3 and an energy storage assembly 4 are arranged between the two side plates 1, two ends of the roller shaft 2 are respectively arranged on the corresponding side plates 1, the roller shaft 2 can move back and forth under the driving of the folding driving mechanism 3, and the energy storage assembly 4 can realize energy storage and energy release in the moving process; the folding driving mechanism 3 comprises a cantilever 301, one end of the cantilever 301 is sleeved on the roller shaft 2, the other end of the cantilever 301 is hinged with a compression rack 302, and the compression rack 302 is rotatably arranged on the two side plates 1 through a rotating shaft 303; the energy storage assembly 4 comprises a movable spring seat 401, an energy storage spring group 402 and a fixed spring seat 403, the movable spring seat 401 is linked with the roller shaft 2, two ends of the fixed spring seat 403 are fixedly installed on the two side plates 1, and the energy storage spring group 402 is installed between the movable spring seat 401 and the fixed spring seat 403. When the compression frame 302 rotates around the rotating shaft 303 under the driving of an external force, the cantilever 301 is driven to move, the cantilever 301 drives the movable spring seat 401 to move towards the direction close to the fixed spring seat 403 through the roller shaft 2, so that the energy storage spring group 402 is compressed to store energy, and when the energy storage spring group 402 releases energy, the energy storage spring group 402 pushes the spring seat 401 and the roller shaft 2 to move towards the direction far away from the fixed spring seat 403.
As shown in fig. 1, two ends of the roller shaft 2 are respectively installed in the strip-shaped holes 101 of the corresponding side plates 1 and can slide in the strip-shaped holes 101, the extending direction of the strip-shaped holes 101 is the same as the compressing and releasing direction of the energy storage spring set 402, the installation structure of the roller shaft 2 is simple and easy to realize, the roller shaft 2 can always slide along the linear direction, and the energy utilization rate is effectively improved.
As shown in fig. 1 to 3, a roller 5 is sleeved on the middle of a roller shaft 2, the roller 5 can rotate on the roller shaft 2, when the energy storage spring set 402 releases energy, the roller 5 strikes the switching lever installed between the two side plates 1 to realize switching on, and during striking, rolling friction occurs between the roller 5 and the switching lever, so that energy loss is reduced compared with sliding friction, and parts can be prevented from being worn.
As shown in fig. 1 to 4, the movable spring seat 401 is a cylinder, a central axis of the movable spring seat is perpendicular to a central axis of the roller shaft 2, a roller shaft insertion groove 401a and a roller abdicating groove 401b are formed on one side of the movable spring seat 401 on the roller shaft 2, the roller shaft 2 is inserted into the roller shaft insertion groove 401a, the roller 5 is inserted into the roller abdicating groove 401b and can rotate in the roller abdicating groove 401b, and the movable spring seat 401 and the roller shaft 2 can also be an integrated structure.
As shown in fig. 1 to 4, the energy storage spring set 402 includes a large spring 402a and a small spring 402b which are coaxially arranged, and the large spring 402a and the small spring 402b can ensure reliable energy storage. A first positioning step 401c matched with the large spring 402a is arranged at one end, far away from the roller shaft 2, of the movable spring seat 401, a second positioning step 403a matched with the small spring 402b is arranged on the fixed spring seat 403, the large spring 402a is sleeved on the first positioning step 401c, the small spring 402b is sleeved on the second positioning step 403a, and the mounting structure is stable and reliable.
As shown in fig. 1 to 3 and 5, the compression frame 302 includes two opposite shaped plates 302a, the two shaped plates 302a are connected by a connecting shaft 302b, two ends of the roller shaft 2 are respectively sleeved with a cantilever 301, the two cantilevers 301 are respectively hinged to the corresponding shaped plates 302a, one ends of the two shaped plates 302a far away from the cantilevers 301 are both fixedly sleeved on the rotating shaft 303, and the two cantilevers 301 are driven by the compression frame 302 to move synchronously, so that the connecting shaft 302b is stressed in balance.
The structure, proportion, size, quantity, etc. shown in the attached drawings of the embodiment of the present invention are only used for matching with the contents disclosed in the specification, so as to be known and read by people familiar with the art, not for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and the modification of any structure, the change of proportion relation or the adjustment of size should still fall within the range that the technical contents can be covered without affecting the function that the present invention can produce and the purpose that can be achieved. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", "clockwise", "counterclockwise", etc. used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are considered to be the scope of the present invention without substantial changes in the technical content.
Claims (8)
1. The utility model provides a circuit breaker energy storage mechanism, includes the curb plate of two relative settings and installs the roller shaft between two curb plates, the roller shaft both ends dress is in on the curb plate of relative setting, its characterized in that: the roller shaft can move back and forth under the action of the folding driving mechanism, and the energy storage assembly can store and release energy in the movement process of the roller shaft;
the folding driving mechanism comprises a cantilever, one end of the cantilever is sleeved on the roller shaft, the other end of the cantilever is hinged with a compression frame, and the compression frame is arranged on the side plate by using a rotating shaft and can rotate around the rotating shaft;
the energy storage assembly comprises a movable spring seat, the movable spring seat is linked with the roller shaft, one end of the energy storage spring group is connected with the movable spring seat, and the other end of the energy storage spring group is connected with the fixed spring seat.
2. A circuit breaker energy storage mechanism according to claim 1, wherein: and two ends of the roller shaft are arranged in the strip-shaped holes on the oppositely arranged side plates and can slide in the strip-shaped holes.
3. A circuit breaker energy storage mechanism according to claim 1, wherein: the roller is arranged on the roller shaft and can rotate, and the roller can be linked with the opening and closing lever in the rotating process.
4. A circuit breaker energy storage mechanism according to claim 1, wherein: and two ends of the fixed spring seat are fixedly arranged on the oppositely arranged side plates.
5. A circuit breaker energy storage mechanism according to claim 2, wherein: the sliding direction of the roller shaft in the strip-shaped hole is the same as the compression and release direction of the energy storage spring group.
6. A circuit breaker energy storage mechanism according to claim 1, wherein: the movable spring seat is located on one side of the roller shaft and is provided with a roller shaft embedding groove and a roller abdicating groove, the roller shaft is embedded in the roller shaft embedding groove, and the roller is embedded in the roller abdicating groove and can rotate in the roller abdicating groove.
7. A circuit breaker energy storage mechanism according to claim 1, wherein: the energy storage spring group comprises a large spring and a small spring which are coaxially arranged.
8. A circuit breaker energy storage mechanism according to claim 7, wherein: one end of the movable spring seat, which is far away from the roller shaft, is provided with a first positioning step which is adaptive to the large spring, a second positioning step which is adaptive to the small spring is arranged on the fixed spring seat, the large spring is sleeved on the first positioning step, and the small spring is sleeved on the second positioning step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920986168.2U CN210110675U (en) | 2019-06-26 | 2019-06-26 | Energy storage mechanism of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920986168.2U CN210110675U (en) | 2019-06-26 | 2019-06-26 | Energy storage mechanism of circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN210110675U true CN210110675U (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920986168.2U Active CN210110675U (en) | 2019-06-26 | 2019-06-26 | Energy storage mechanism of circuit breaker |
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| CN (1) | CN210110675U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151324A (en) * | 2019-06-26 | 2020-12-29 | 上海良信电器股份有限公司 | Energy storage mechanism of circuit breaker |
| CN112713020A (en) * | 2020-12-14 | 2021-04-27 | 平高集团有限公司 | Spring operating mechanism and frame thereof |
-
2019
- 2019-06-26 CN CN201920986168.2U patent/CN210110675U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151324A (en) * | 2019-06-26 | 2020-12-29 | 上海良信电器股份有限公司 | Energy storage mechanism of circuit breaker |
| CN112713020A (en) * | 2020-12-14 | 2021-04-27 | 平高集团有限公司 | Spring operating mechanism and frame thereof |
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