CN219267578U

CN219267578U - Electric operating mechanism

Info

Publication number: CN219267578U
Application number: CN202320196222.XU
Authority: CN
Inventors: 冯振浩; 冯建成; 刘曙彬; 黄振宙; 张一帆
Original assignee: Yueqing Jianbo Electric Co ltd
Current assignee: Yueqing Jianbo Electric Co ltd
Priority date: 2023-01-28
Filing date: 2023-01-28
Publication date: 2023-06-27
Anticipated expiration: 2033-01-28

Abstract

The utility model relates to an electric operating mechanism, which comprises a machine frame, a shell, an intelligent control circuit board module, a motor, a transmission assembly, a manual operating shaft, a safety lock assembly and a manual-automatic switching assembly, wherein the safety lock assembly and the manual-automatic switching assembly are arranged on the machine frame, the manual-automatic switching assembly comprises a switching slide plate, a micro switch and a monitoring micro switch, the micro switch is used for controlling the power on or off of the motor, the monitoring micro switch is used for monitoring the manual position or the automatic position of the manual slide plate, the micro switch and the position monitoring switch are respectively and electrically connected with the intelligent control circuit board module, one end of the switching slide plate is provided with a shielding part which is shielded on an operating hole of the manual operating shaft, and the switching slide plate can respectively trigger the micro switch and the monitoring micro switch and can realize the connection or the disconnection of the micro switch. The utility model has the advantages of simple structure, stable and reliable performance, high safety and intellectualization.

Description

Electric operating mechanism

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to an electric operating mechanism for a circuit breaker.

Background

The circuit breaker is a switching device which is used for a power distribution electrical appliance in a power grid, can be used for switching on, carrying and breaking current under normal circuit conditions, and can also be used for switching on, carrying for a certain time and breaking current under specified abnormal conditions (such as overload, short circuit, undervoltage and single-phase grounding faults). The electric operating mechanism is a special accessory of the molded case circuit breaker, and can be electrically closed, opened and re-buckled with the circuit breaker in a long distance after being matched with the circuit breaker so as to realize centralized and automatic control of the transmission and distribution network. With the development of electric power industry, an electric operating mechanism of a circuit breaker has become a mainstream of current development, and the design is developed toward miniaturization and intellectualization. The opening and closing operation of the circuit breaker can be manually controlled locally through the electric operating mechanism, and also can be controlled remotely through the electric operating mechanism, so that automatic control is realized. The manual or automatic control signal can not be sent to the backstage by the manual or automatic switching component of the existing electric operating mechanism, and the backstage can not monitor the working state of the electric operating mechanism. Therefore, the electric operating mechanism cannot meet the intelligent use requirement.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides an intelligent electric operating mechanism with simple structure, stable and reliable performance and high safety.

In order to achieve the above purpose, the utility model adopts an electric operating mechanism, which comprises a machine frame, a shell arranged on the machine frame, an intelligent control circuit board module arranged on the machine frame, a motor arranged on the machine frame, a transmission component which is in linkage fit with the motor and is used for driving a breaker to open or close, a manual operating shaft which is arranged on the machine frame in a rotating way and is provided with an operating hole, a safety lock component arranged on the machine frame, and a manual automatic switching component which is arranged on the machine frame and is matched with the manual operating shaft, wherein the manual automatic switching component comprises a switching slide plate which is arranged on the machine frame in a sliding way, a micro switch for controlling the power on or off of the motor, and a monitoring micro switch for monitoring the manual position or the automatic position of the manual slide plate, wherein the micro switch and the position monitoring switch are respectively electrically connected with the intelligent control circuit board module, one end of the switching slide plate is provided with a shielding part which is shielded on the operating hole of the manual operating shaft, and the switching slide plate can respectively trigger the micro switch and the monitoring micro switch, and can realize the on or off of the micro switch and the micro switch.

The beneficial effects of the structure are as follows: the manual automatic switching component can realize the switching of manual control and automatic control of the electric operating mechanism, the position of the switching slide plate can be monitored by the monitoring micro switch, the monitored signal can be transmitted to the intelligent control circuit board module by the monitoring micro switch, and the intelligent control circuit board module can send the working state to the background, so that the intelligent control of the electric operating mechanism is realized. When the switching slide plate is shifted to the electric position during operation, the shielding part of the switching slide plate shields the operation hole of the manual operation shaft, and the switching slide plate respectively triggers the micro switch and the monitoring micro switch to be connected, the micro switch is used for connecting the power supply of the motor, and the monitoring micro switch is used for transmitting the monitored electric control signal to the intelligent control circuit board module; when the switching slide plate is shifted to the manual position, and the shielding part of the switching slide plate is moved away from the operation hole, the micro switch and the monitoring micro switch lose the limit of the switching slide plate, and the micro switch and the monitoring micro switch are disconnected, so that the electric operation mechanism can be operated manually.

Particularly, the other end of the switching slide plate is provided with a limit bump matched with the safety lock assembly, the lock cylinder of the safety lock assembly is provided with an interlocking shaft matched with the limit bump, and when the safety lock assembly rotates to a locking position, the interlocking shaft is abutted against the limit bump and forms limit fit of the switching slide plate and the interlocking shaft. When the safety lock assembly rotates to the locking position, the interlocking shaft of the safety lock assembly is abutted against the limiting protruding block of the switching sliding plate, so that the switching sliding plate can be locked in a closed state, and the manual control function and the automatic control function of the electric operating mechanism are completely closed, thereby being beneficial to improving the safety performance of the electric operating mechanism.

Particularly, switch slide one side on be provided with one and switch the spring arm, switch and be provided with on the slide and stir the lug, should stir the lug and pass the switching hole of casing and expose outside the casing, switch and be provided with the cambered surface lug on the spring arm, the casing in be provided with respectively with cambered surface lug matched with electronic constant head tank, manual constant head tank, switch when slide to electric position, the cambered surface lug slide to electric constant head tank in, switch when slide to manual position, the cambered surface lug slide to manual constant head tank in. The switching slide plate is provided with the switching spring arm, and the switching spring arm can be switched between the electric positioning groove and the manual positioning groove, so that the manual and automatic reliable switching of the electric operating mechanism can be ensured.

Particularly, the switch slide on correspond micro-gap switch department and be provided with the direction sand grip, the framework on be provided with direction lug matched with guide slot, the direction sand grip slide and set up in the guide slot, and be provided with on the direction sand grip with micro-gap switch matched with lug, the lug move along with the direction sand grip and can trigger micro-gap switch, and realize micro-gap switch's switch-on or switch-off. The switching slide board is arranged in the guide groove of the mechanism frame in a sliding way, so that the switching slide board can reliably slide on the mechanism frame, and the switching slide board and the mechanism frame are convenient to assemble, and the assembly is more convenient.

Particularly, a trigger lug is arranged at the other end of the switching slide plate corresponding to the monitoring micro switch, the trigger lug acts along with the switching slide plate and can trigger the monitoring micro switch, and the on or off of the monitoring micro switch can be realized. The trigger protruding block used for triggering the monitoring micro switch is arranged on the switching slide plate, so that the switching slide plate can be ensured to reliably trigger the micro switch, and the working reliability of the manual-automatic switching assembly is improved.

Drawings

Fig. 1 is a perspective view of an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of an embodiment of the present utility model.

Fig. 3 is an internal structural diagram of an embodiment of the present utility model.

Fig. 4 is an assembly diagram of the switch slide and the housing according to the embodiment of the utility model.

Detailed Description

As shown in fig. 1 to 4, an embodiment of the present utility model is an electric operating mechanism, including a machine frame 10, a housing 11 disposed on the machine frame 10, an intelligent control circuit board module 12 disposed on the machine frame 10, a motor 13 disposed on the machine frame 10, a transmission assembly 14 that is in linkage fit with the motor 13 and is used for driving a circuit breaker to open or close, a manual operating shaft 151 that is rotatably disposed on the machine frame 10 and has an operating hole 151, a safety lock assembly 16 disposed on the machine frame 10, and a manual automatic switching assembly 20 that is disposed on the machine frame 10 and is matched with the manual operating shaft 15, wherein the manual automatic switching assembly 20 includes a switching slide 21 slidably disposed on the machine frame 10, a micro switch 22 for controlling the power on or off of the motor 13, and a monitoring micro switch 23 for monitoring the manual position or the automatic position of the manual slide 21, the micro switch 22 and the position monitoring micro switch 23 are respectively electrically connected with the intelligent control circuit board module 12, one end of the switching slide 21 has a portion 211 that blocks the operating hole 151 of the manual operating shaft 15, and the switching slide 21 is triggered by the micro switch 22, the micro switch 23 and the micro switch 23 is capable of being turned on or turned off. The other end of the switching slide plate 21 is provided with a limit bump 212 matched with the safety lock assembly 16, a lock cylinder of the safety lock assembly 16 is provided with an interlocking shaft 161 matched with the limit bump 212, and when the safety lock assembly 16 rotates to a locking position, the interlocking shaft 161 is abutted against the limit bump 212 and forms limit fit of the switching slide plate 21 and the interlocking shaft 161. When the safety lock assembly rotates to the locking position, the interlocking shaft of the safety lock assembly is abutted against the limiting protruding block of the switching sliding plate, so that the switching sliding plate can be locked in a closed state, and the manual control function and the automatic control function of the electric operating mechanism are completely closed, thereby being beneficial to improving the safety performance of the electric operating mechanism.

As shown in fig. 2 to 4, a switching spring arm 213 is disposed on one side of the switching slide plate 21, a toggle protrusion 214 is disposed on the switching slide plate 21, the toggle protrusion 214 passes through the switching hole 111 of the housing 11 and is exposed outside the housing 11, an arc protrusion 215 is disposed on the switching spring arm 213, an electric positioning slot 112 and a manual positioning slot 113 matched with the arc protrusion 215 are disposed in the housing 11, when the switching slide plate 21 slides to the electric position, the arc protrusion 215 slides into the electric positioning slot 112, and when the switching slide plate 21 slides to the manual position, the arc protrusion 215 slides into the manual positioning slot 113. The switching slide plate is provided with the switching spring arm, and the switching spring arm can be switched between the electric positioning groove and the manual positioning groove, so that the manual and automatic reliable switching of the electric operating mechanism can be ensured. The switch slide 21 on correspond to the micro-gap switch 22 department be provided with the guide convex strip 216, the mechanism frame 10 on be provided with the guide slot 101 that leads to the lug 216 to cooperate, the guide convex strip 216 slide and set up in the guide slot 101, and be provided with the lug 217 that cooperatees with the micro-gap switch 22 on the guide convex strip 216, the lug 217 can trigger the micro-gap switch 22 along with the action of guide convex strip 216, and realize the switch-on or switch-off of micro-gap switch 22. The switching slide board is arranged in the guide groove of the mechanism frame in a sliding way, so that the switching slide board can reliably slide on the mechanism frame, and the switching slide board and the mechanism frame are convenient to assemble, and the assembly is more convenient. The other end of the switching slide plate 21 is provided with a trigger lug 218 corresponding to the monitoring micro switch 23, the trigger lug 218 acts along with the switching slide plate 21 and can trigger the monitoring micro switch 23, and the on or off of the monitoring micro switch 23 can be realized. The trigger protruding block used for triggering the monitoring micro switch is arranged on the switching slide plate, so that the switching slide plate can be ensured to reliably trigger the micro switch, and the working reliability of the manual-automatic switching assembly is improved.

The manual automatic switching component can realize the switching of manual control and automatic control of the electric operating mechanism, the position of the switching slide plate can be monitored by the monitoring micro switch, the monitored signal can be transmitted to the intelligent control circuit board module by the monitoring micro switch, and the intelligent control circuit board module can send the working state to the background, so that the intelligent control of the electric operating mechanism is realized. When the switching slide plate is shifted to the electric position during operation, the shielding part of the switching slide plate shields the operation hole of the manual operation shaft, and the switching slide plate respectively triggers the micro switch and the monitoring micro switch to be connected, the micro switch is used for connecting the power supply of the motor, and the monitoring micro switch is used for transmitting the monitored electric control signal to the intelligent control circuit board module; when the switching slide plate is shifted to the manual position, and the shielding part of the switching slide plate is moved away from the operation hole, the micro switch and the monitoring micro switch lose the limit of the switching slide plate, and the micro switch and the monitoring micro switch are disconnected, so that the electric operation mechanism can be operated manually.

Claims

1. The utility model provides an electric operating mechanism, including the machine frame, set up the casing on the machine frame, set up intelligent control circuit board module on the machine frame, set up motor on the machine frame, with motor linkage cooperation and be used for driving the drive assembly that the circuit breaker breaks the floodgate or closes a floodgate, rotate the manual operation axle that sets up on the machine frame and have the operation hole, set up the safety lock subassembly on the machine frame, set up on the machine frame and with manual operation axle matched with manual automatic switch-over subassembly, its characterized in that: the manual automatic switching assembly comprises a switching slide plate, a micro switch and a monitoring micro switch, wherein the switching slide plate is arranged on a machine frame in a sliding mode, the micro switch is used for controlling a motor to be powered on or off, the monitoring micro switch is used for monitoring the manual position or the automatic position of the manual slide plate, the micro switch and the position monitoring switch are respectively electrically connected with an intelligent control circuit board module, one end of the switching slide plate is provided with a shielding part shielding an operation hole of a manual operation shaft, the switching slide plate can respectively trigger the micro switch and the monitoring micro switch, and the micro switch can be switched on or off.

2. The electric operating mechanism of claim 1, wherein: the switching slide board another end on be provided with safety lock subassembly matched with spacing lug, the lock core of safety lock subassembly on be provided with spacing lug matched with interlocking axle, safety lock subassembly rotate to the locked position, the interlocking axle conflict on spacing lug, and constitute the spacing cooperation of switching slide board and interlocking axle.

3. An electrically operated mechanism according to claim 1 or 2, characterized in that: the switching slide one side on be provided with one and switch the spring arm, the switching slide on be provided with and stir the lug, should stir the lug and pass the switching hole of casing and expose outside the casing, switch and be provided with the cambered surface lug on the spring arm, the casing in be provided with respectively with cambered surface lug matched with electronic constant head tank, manual constant head tank, the switching slide when sliding to electric position, the cambered surface lug slide to electric constant head tank in, the switching slide when sliding to manual position, the cambered surface lug slide to manual constant head tank in.

4. An electrically operated mechanism according to claim 1 or 2, characterized in that: the switch slide on correspond micro-gap switch department and be provided with the direction sand grip, the framework on be provided with direction lug matched with guide slot, the direction sand grip slide and set up in the guide slot, and be provided with on the direction sand grip with micro-gap switch matched with lug, the lug move along with the direction sand grip and can trigger micro-gap switch, and realize micro-gap switch's switch-on or switch-off.

5. An electrically operated mechanism according to claim 1 or 2, characterized in that: the other end of the switching slide plate is provided with a trigger lug corresponding to the monitoring micro switch, the trigger lug acts along with the switching slide plate and can trigger the monitoring micro switch, and the on or off of the monitoring micro switch can be realized.