CN210805609U - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
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- CN210805609U CN210805609U CN201922246252.3U CN201922246252U CN210805609U CN 210805609 U CN210805609 U CN 210805609U CN 201922246252 U CN201922246252 U CN 201922246252U CN 210805609 U CN210805609 U CN 210805609U
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- shaft
- permanent magnet
- transmission
- pull rod
- insulating pull
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Abstract
The utility model discloses a circuit breaker, including permanent magnetism operating mechanism and set up in its one side's manual operation mechanism, this permanent magnetism operating mechanism includes a mounting bracket and sets up at least a permanent magnetism subassembly on it, each permanent magnetism subassembly includes the permanent magnet that is fixed in the upper end of mounting bracket, the power take off end transmission of this permanent magnet is connected with an insulating pull rod, the power take off end transmission of this insulating pull rod is connected with a vacuum interrupter to according to the motion of permanent magnet through insulating pull rod drive vacuum interrupter separating brake or closing a floodgate; the manual operating mechanism comprises a fixing frame, a manual rotating shaft and a connecting shaft, wherein the manual rotating shaft and the connecting shaft are respectively arranged on the fixing frame in a manner of being rotatable and vertically limited through bearings, the manual rotating shaft is in transmission connection with the connecting shaft through a connecting rod, and a power output end of the connecting shaft is in transmission connection with a transmission shaft in transmission connection with an insulating pull rod so as to drive the vacuum arc extinguish chamber to be opened through the transmission shaft and the insulating pull rod according to the movement of the manual rotating shaft.
Description
Technical Field
The utility model relates to an electrical switch field especially relates to a circuit breaker.
Background
With rapid development of economy, requirements of human society on safety and reliability of an electric power system are higher and higher, a circuit breaker serving as one of important control and protection devices of the electric power system needs to complete opening and closing operations of the circuit breaker reliably by means of an operating mechanism, an existing circuit breaker adopts a permanent magnet operating mechanism to perform opening and closing operations through electromagnetic control, however, when electric power has problems, emergency opening operations cannot be performed on a switching mechanism, and safety is low.
Therefore, there is a need for a circuit breaker that can solve the above-mentioned drawbacks, and can manually operate to open the circuit breaker when there is a problem in the power, thereby improving the safety and reliability.
Disclosure of Invention
The utility model aims to solve the technical problem that a breaker can be when electric power goes wrong, and manual operation carries out the separating brake of breaker, improves the security performance, and the reliability is high.
In order to solve the technical problem, the utility model discloses a as follows technical scheme: a circuit breaker comprises a permanent magnet operating mechanism and a manual operating mechanism, wherein the permanent magnet operating mechanism comprises a mounting frame, at least one permanent magnet assembly is arranged on the mounting frame, each permanent magnet assembly comprises a permanent magnet, the permanent magnets are fixed at the upper end of the mounting frame, the power output ends of the permanent magnets are in transmission connection with an insulating pull rod, and the power output ends of the insulating pull rods are in transmission connection with a vacuum arc extinguish chamber so as to drive the vacuum arc extinguish chamber to open or close according to the movement of the permanent magnets through the insulating pull rods; manual operating device set up in one side of permanent magnetism operating device and rather than being connected, it is including a mount, a manual pivot and a connecting axle, mount fixed connection in one side of mounting bracket, manual pivot and connecting axle install in with rotatable and spacing mode from top to bottom through the bearing respectively on the mount, be connected through the connecting rod transmission between manual pivot and the connecting axle, the power take off end transmission of connecting axle is connected with a transmission shaft, transmission shaft and each insulating pull rod transmission is connected to pass through transmission shaft and insulating pull rod drive explosion chamber separating brake according to the motion of manual pivot.
The further technical scheme is as follows: the fixing frame comprises a bottom plate, an intermediate plate and a top plate, the intermediate plate is fixed on the front side of the bottom plate, the top plate is fixed on the front side of the intermediate plate, the manual rotating shaft and the connecting shaft are respectively installed on the intermediate plate through bearings, and the other end of the manual rotating shaft extends out of the top plate.
The further technical scheme is as follows: the bottom plate is provided with a through hole for the transmission shaft to penetrate through so that one end of the transmission shaft extends out and is in transmission connection with the connecting shaft.
The further technical scheme is as follows: and one end of the connecting shaft extending out of the top plate is sleeved with an indicating plate for prompting the working state of the vacuum arc extinguish chamber.
The further technical scheme is as follows: and the middle plate is provided with a microswitch which is connected with the connecting rod.
The further technical scheme is as follows: the transmission shaft adopts a hexagonal shaft.
The further technical scheme is as follows: the insulating pull rod is sleeved with an elastic element, one end of the elastic element is connected with the mounting frame, and the other end of the elastic element is connected with the insulating pull rod.
The further technical scheme is as follows: the number of the permanent magnet assemblies is three, and the permanent magnet assemblies are uniformly distributed on the mounting rack along the length direction of the mounting rack respectively.
The utility model has the advantages of: the circuit breaker passes through the connecting rod transmission with manual pivot and connecting axle through setting up manual operating mechanism and connects, and the connecting axle is connected with the transmission shaft transmission, and the transmission shaft is connected with insulating pull rod transmission for rotate manual pivot, then drive the connecting rod and rotate and make the connecting axle rotate, rotate and make insulating pull rod up-going in order to drive the transmission shaft, and then drive vacuum interrupter separating brake, the realization can be when electric power goes wrong, manual operation carries out the separating brake of circuit breaker, improves the security performance, the reliability is high.
Drawings
Fig. 1 is a schematic structural diagram of the circuit breaker of the present invention;
fig. 2 is a schematic structural diagram of a manual operating mechanism of the circuit breaker of the present invention;
fig. 3 is a schematic diagram of the connection between the connecting rod and the micro switch of the circuit breaker of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, in the present embodiment, the circuit breaker 10 includes a permanent magnet operating mechanism 110 and a manual operating mechanism 120. The permanent magnet operating mechanism 110 comprises a mounting frame 111, at least one permanent magnet assembly 112 is arranged on the mounting frame 111, each permanent magnet assembly 112 comprises a permanent magnet 113, the permanent magnet 113 is fixed at the upper end of the mounting frame 111, an insulating pull rod 114 is connected to the power output end of the permanent magnet assembly, and a vacuum arc-extinguishing chamber 115 is connected to the power output end of the insulating pull rod 114 in a transmission manner so as to drive the vacuum arc-extinguishing chamber 115 to be opened or closed through the insulating pull rod 114 according to the movement of the permanent magnet 113. The manual operating mechanism 120 is disposed at one side of the permanent magnet operating mechanism 110 and connected to the permanent magnet operating mechanism, the manual operating mechanism 120 includes a fixing frame 121, a manual rotating shaft 122 and a connecting shaft 123, the fixing frame 121 is fixedly connected to one side of the mounting frame 111, and the manual rotating shaft 122 and the connecting shaft 123 are respectively mounted on the fixing frame 121 in a manner of being rotatable and vertically limited through a bearing 124. The manual rotating shaft 122 is in transmission connection with the connecting shaft 123 through a connecting rod 125, so that the connecting shaft 123 rotates along with the rotation of the manual rotating shaft 122, a transmission shaft 126 is in transmission connection with a power output end of the connecting shaft 123, and the transmission shaft 126 is in transmission connection with each insulating pull rod 114, so that the vacuum arc-extinguishing chamber 115 is driven to be opened through the transmission shaft 126 and the insulating pull rod 114 according to the movement of the manual rotating shaft 122.
The permanent magnet 113 comprises a conductive coil and a magnet, the circuit breaker 10 further comprises a control module, the control module is connected with the conductive coil to control the conduction or the disconnection of the conductive coil, the coil generates magnetic force or loses the magnetic force, the magnet is attracted or separated, and then the insulating pull rod 114 in transmission connection with the permanent magnet 113 is controlled to move upwards or downwards, so that the opening or the closing of the vacuum arc extinguish chamber 115 is driven. Of course, in some embodiments, the conductive coil may be controlled to be supplied with a reverse current to generate a reverse magnetic force to repel and separate from the magnet, so as to control the insulating pull rod 114 in driving connection with the permanent magnet 113 to move downwards, thereby driving the closing of the vacuum interrupter 115. In other embodiments, the permanent magnet 113 may be two conductive coils, and the two conductive coils can attract each other when being powered on.
Through the arrangement of the manual operating mechanism 120, the manual rotating shaft 122 and the connecting shaft 123 are in transmission connection through the connecting rod 125, so that the connecting shaft 123 can rotate along with the rotation of the manual rotating shaft 122, the connecting shaft 123 is in transmission connection with the transmission shaft 126, so that the transmission shaft 126 rotates along with the rotation of the connecting shaft 123, and the transmission shaft 126 is in transmission connection with the insulating pull rod 114, so that the insulating pull rod 114 moves upwards according to the rotation of the transmission shaft 126. Therefore, according to the rotation of the manual rotating shaft 122, the connecting rod 125 is driven to rotate, so that the connecting shaft 123 rotates, the transmission shaft 126 rotates to drive the insulating pull rod 114 to move upwards so as to drive the vacuum arc extinguish chamber 115 to open, so that when power fails, the breaker 10 is opened through manual operation, the safety performance is improved, and the reliability is high.
Specifically, the number of the permanent magnet assemblies 112 is three, and the permanent magnet assemblies are respectively and uniformly distributed on the mounting frame 111 along the length direction of the mounting frame 111. An elastic element 1141 is sleeved on the insulating pull rod 114, one end of the elastic element 1141 is connected with the mounting frame 111, and the other end thereof is connected with the insulating pull rod 114. Preferably, the elastic element 1141 may adopt a compression spring, and the elastic property of the elastic element 1141 is utilized to enable the insulating pull rod 114 to rapidly recover and play a role in damping and buffering when switching off or switching on.
Referring to fig. 2, the fixing frame 121 includes a bottom plate 1211, a middle plate 1212 and a top plate 1213, the middle plate 1212 is fixed to the front side of the bottom plate 1211, the top plate 1213 is fixed to the front side of the middle plate 1212, the manual rotation shaft 122 and the connection shaft 123 are respectively mounted on the middle plate 1212 in a manner of being rotatable and vertically limited by a bearing 124, and the other ends of the manual rotation shaft 122 and the connection shaft 123 extend out of the top plate 1213. Preferably, the top plate 1213 is fixedly mounted to the front side of the middle plate 1212 by the connecting column 1201, and the middle plate 1212 is fixedly mounted to the front side of the bottom plate 1211 by the connecting column 1201. One end of each of the bearings 124 is fixed to the middle plate 1212, and the other end thereof is fixed to the top plate 1213, so that one end of the manual rotation shaft 122 and one end of the connecting shaft 123 are respectively inserted into the corresponding bearing 124 and fixed to the middle plate 1212, and the other end of the manual rotation shaft 122 and the other end of the connecting shaft 123 respectively extend out of the top plate 1213.
Preferably, the bottom plate 1211 is provided with a through hole 1202 through which the transmission shaft 126 passes, so that one end of the transmission shaft 126 extends out and is in transmission connection with the connection shaft 123. Preferably, the transmission shaft 126 may be a hexagonal shaft, which is convenient for installation and machining. A movable matching piece may be disposed between the connecting shaft 123 and the transmission shaft 126, the movable matching piece is mounted on the bottom plate 1211 corresponding to the through hole 1202, one end of the movable matching piece is connected to the connecting shaft 123, and the other end of the movable matching piece is connected to the transmission shaft 126, so as to achieve transmission connection between the connecting shaft 123 and the transmission shaft 126, wherein the movable matching piece may be a movable matching piece in the prior art, such as a movable matching piece mentioned in a phase-splitting operation circuit breaker disclosed in chinese patent CN208938877U, and details thereof are not repeated.
Specifically, an indication plate 1231 for indicating the working state of the vacuum interrupter 115 is sleeved on one end of the connecting shaft 123 extending out of the top plate 1213. Preferably, the circuit breaker 10 further includes a housing, the permanent magnet operating mechanism 110 is installed in the housing to prevent the external environment from damaging the permanent magnet operating mechanism, the other end of the manual rotating shaft 122 extends out of the top plate 1213 and is exposed out of the housing, the indicating plate 1231 is located in the housing, an opening is formed in the housing corresponding to the indicating plate 1231, indicating information indicating opening or closing can be relatively printed on the indicating plate 1231, and by rotating the manual rotating shaft 122, the connecting rod 125 drives the connecting shaft 123 to rotate, so that the indicating information of the indicating plate 1231 is displayed in the opening according to the rotation, thereby indicating the working state of the vacuum interrupter 115.
Referring to fig. 3, in the present embodiment, a micro switch 127 is preferably mounted on the middle plate 1212, and the micro switch 127 is connected to the link 125. Specifically, the wiring terminals around the microswitch 127 are electrically connected with the low-voltage box, and the low-voltage box is provided with an indicator light for prompting the opening or closing of the circuit breaker 10. The connecting rod 125 is in transmission connection with a central rotating shaft of the microswitch 127 through a first connecting rod, and the connecting rod 125 drives the central rotating shaft of the microswitch 127 to rotate, so that the connection and disconnection of the wiring terminals around the microswitch 127 are controlled, indicator lights of a low-voltage box connected with the wiring terminals around the microswitch 127 can be turned off and turned on according to the connection and disconnection of the wiring terminals, the opening or closing of the circuit breaker 10 is prompted, and the observation of the working state of the circuit breaker 10 is realized.
Based on above-mentioned design, the during operation, the rotatable manual pivot of user drives the connecting rod and rotates and make the connecting axle rotate, and the transmission shaft rotates and drives the upward motion of insulating pull rod to drive vacuum interrupter separating brake, in order when electric power goes wrong, manual operation carries out the separating brake of circuit breaker, improves the security performance, and the reliability is high. A user can control the power-on or power-off of the conductive coil through the control module, the coil generates magnetic force or loses the magnetic force, the magnet is attracted or separated, and then the insulating pull rod connected with the permanent magnet in a transmission mode is controlled to move upwards or downwards, so that the opening or closing of the vacuum arc extinguish chamber is driven.
To sum up, the utility model discloses the circuit breaker passes through the connecting rod transmission with manual pivot and connecting axle and connects through manual operating mechanism, and the connecting axle is connected with the transmission shaft transmission, and the transmission shaft is connected with insulating pull rod transmission for rotate manual pivot, then drive the connecting rod and rotate and make the connecting axle rotate, rotate and make insulating pull rod upward movement with driving the transmission shaft, and then drive vacuum interrupter separating brake, realize can be when electric power goes wrong, manual operation carries out the separating brake of circuit breaker, improves the security performance, and the reliability is high.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not intended to limit the invention in any way. Various equivalent changes and modifications can be made on the basis of the above embodiments by those skilled in the art, and all equivalent changes and modifications within the scope of the claims should fall within the protection scope of the present invention.
Claims (8)
1. A circuit breaker, comprising:
the permanent magnet operating mechanism comprises a mounting frame, at least one permanent magnet assembly is arranged on the mounting frame, each permanent magnet assembly comprises a permanent magnet, the permanent magnet is fixed at the upper end of the mounting frame, the power output end of the permanent magnet is in transmission connection with an insulating pull rod, and the power output end of the insulating pull rod is in transmission connection with a vacuum arc extinguish chamber so as to drive the vacuum arc extinguish chamber to open or close according to the movement of the permanent magnet through the insulating pull rod;
a manual operating mechanism, set up in one side of permanent magnetism operating mechanism and rather than connecting, it is including a mount, a manual pivot and a connecting axle, mount fixed connection in one side of mounting bracket, manual pivot and connecting axle install in with rotatable and upper and lower spacing mode through the bearing respectively on the mount, be connected through the connecting rod transmission between manual pivot and the connecting axle, the power take off end transmission of connecting axle is connected with a transmission shaft, transmission shaft and each insulating pull rod transmission is connected to pass through transmission shaft and insulating pull rod drive vacuum interrupter separating brake according to the motion of manual pivot.
2. The circuit breaker according to claim 1, wherein the fixing frame comprises a bottom plate, an intermediate plate and a top plate, the intermediate plate is fixed to a front side of the bottom plate, the top plate is fixed to a front side of the intermediate plate, the manual rotation shaft and the connection shaft are respectively mounted on the intermediate plate through bearings, and the other end of the manual rotation shaft extends out of the top plate.
3. The circuit breaker according to claim 2, wherein the bottom plate is provided with a through hole for the transmission shaft to pass through, so that one end of the transmission shaft extends out and is in transmission connection with the connecting shaft.
4. The circuit breaker as claimed in claim 2, wherein an indicator plate for indicating the operating state of the vacuum interrupter is sleeved on one end of the connecting shaft extending out of the top plate.
5. The circuit breaker of claim 2, wherein a microswitch is mounted on the intermediate plate and is connected to the linkage.
6. The circuit breaker of claim 1, wherein the drive shaft is a hexagonal shaft.
7. The circuit breaker according to claim 1, wherein an elastic member is sleeved on the insulating pull rod, one end of the elastic member is connected with the mounting frame, and the other end of the elastic member is connected with the insulating pull rod.
8. The circuit breaker of claim 1, wherein the number of the permanent magnet assemblies is three, and the permanent magnet assemblies are uniformly distributed on the mounting frame along the length direction of the mounting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922246252.3U CN210805609U (en) | 2019-12-13 | 2019-12-13 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922246252.3U CN210805609U (en) | 2019-12-13 | 2019-12-13 | Circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210805609U true CN210805609U (en) | 2020-06-19 |
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ID=71249062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922246252.3U Active CN210805609U (en) | 2019-12-13 | 2019-12-13 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210805609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116110741A (en) * | 2023-02-07 | 2023-05-12 | 泰安众诚自动化设备股份有限公司 | Mining high-voltage vacuum switch composite breaker |
-
2019
- 2019-12-13 CN CN201922246252.3U patent/CN210805609U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116110741A (en) * | 2023-02-07 | 2023-05-12 | 泰安众诚自动化设备股份有限公司 | Mining high-voltage vacuum switch composite breaker |
| CN116110741B (en) * | 2023-02-07 | 2023-10-20 | 泰安众诚自动化设备股份有限公司 | Mining high-voltage vacuum switch composite breaker |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Three, E (-4), Seaview Plaza, Prince Edward Road, Shenzhen, Guangdong, Nanshan District 518000, China Patentee after: Asia Electrical Power Equipment (Shenzhen) Co.,Ltd. Address before: Three, E (-4), Seaview Plaza, Prince Edward Road, Shenzhen, Guangdong, Nanshan District 518000, China Patentee before: ASIA ELECTRICAL POWER EQUIPMENT (SHENZHEN) Co.,Ltd. |