CN111900055A

CN111900055A - Electric operating mechanism

Info

Publication number: CN111900055A
Application number: CN202010945275.8A
Authority: CN
Inventors: 冯振浩; 冯建成; 黄振宙; 黄振宇; 张建章
Original assignee: Yueqing Jianbo Electric Co ltd
Current assignee: Yueqing Jianbo Electric Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2020-11-06

Abstract

The invention relates to an electric operating mechanism which comprises a shell, a machine frame, an intelligent control circuit board, an electric driving assembly, a sliding block assembly and a manual driving assembly, wherein the electric driving assembly comprises a motor and a cam, the motor is arranged on the machine frame, the cam is arranged in a linkage mode with the motor, the sliding block assembly comprises a sliding block and a sleeve piece, the sliding block is arranged on the machine frame in a sliding mode and is in linkage fit with the cam, the sleeve piece is sleeved on a handle of a molded case circuit breaker and is in linkage fit with the sliding block, a shifting wheel is rotatably arranged on the cam and is in linkage fit with the sliding block, two convex blocks matched with the shifting wheel are respectively arranged on the sliding block, the shifting wheel acts along with the cam and can push the two convex blocks. The invention has the advantages of simple structure, stable and reliable performance, safety, reliability, small volume and convenient assembly.

Description

Electric operating mechanism

Technical Field

The invention relates to the technical field of circuit breakers, in particular to an electric operating mechanism.

Background

The breaker is a distribution electrical appliance used in the power grid, and can connect, bear and break the current under normal circuit conditions, and also can connect, bear and break the current for a certain time under the specified abnormal conditions (such as overload, short circuit, undervoltage and single-phase earth fault). The electric operating mechanism is a special accessory for the plastic shell type circuit breaker, and can electrically close, open and detain the circuit breaker again in a long distance after being matched with the circuit breaker so as to realize the centralized and automatic control of the power transmission and distribution network. With the development of electric power utilities, the operation mechanism of the molded case circuit breaker has gradually become the mainstream of the current development, and the design is developed towards miniaturization and intellectualization. The motor, the gear set and the sliding block of the existing electric operating mechanism used for the molded case circuit breaker are generally of an upper-lower structure, and the electric operating mechanism with the structural design is complex in structure and large in occupied space. In order to facilitate the user can directly observe the operating condition of circuit breaker, all be provided with the divide-shut brake on the current electric operating mechanism and instruct the subassembly, however, the structural design of current divide-shut brake instructs the subassembly complicated, has the unreliable defect of divide-shut brake instruction even. And the electric operating mechanism has the defects of complex structure, inconvenient assembly, unreliable performance, large volume and short service life.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the electric operating mechanism which is simple in structure, stable and reliable in performance, safe and reliable, small in size and convenient and fast to assemble.

In order to achieve the purpose, the invention adopts an electric operating mechanism which comprises a shell, a mechanism frame arranged in the shell, an intelligent control circuit board arranged on the mechanism frame, an electric driving assembly arranged on the mechanism frame, a sliding block assembly which is arranged on the mechanism frame in a sliding way and can drive a handle of the molded case circuit breaker to perform opening and closing, and a manual driving assembly arranged on the mechanism frame, wherein the electric driving assembly comprises a motor arranged on the mechanism frame and a cam which is arranged in a linkage way with the motor, the sliding block assembly comprises a sliding block which is arranged on the mechanism frame in a sliding way and is matched with the cam in a linkage way, and an external member which is sleeved on the handle of the molded case circuit breaker and is matched with the sliding block in a linkage way, a shifting wheel which is matched with the sliding block in a rotating way is arranged on the cam, two convex blocks which are matched with the shifting wheel are respectively arranged, and the sliding block can slide on the framework in a reciprocating manner.

The beneficial effect of above-mentioned structure is: the motor drives the cam to rotate, the cam drives the sliding block to act, and the external member acts along with the sliding block and stirs the handle of the molded case circuit breaker, so that the electric switching-on or switching-off of the molded case circuit breaker can be realized. The electric driving assembly is simpler in structure, smaller in occupied space and more reliable in transmission. Be provided with two lugs with thumb wheel matched with on the slider to can guarantee that the cam can reliably drive the slip action, and two lugs set up the both ends at the slider, when the assembly, two lugs can not cause the interference to the position of thumb wheel, and it is more convenient to install. And be provided with the external member of suit on moulded case circuit breaker handle on the slider to be convenient for the installation of sliding block set spare and moulded case circuit breaker handle, when the installation, the assembly personnel need not adjust the position of moulded case circuit breaker handle, can directly suit the sliding block set spare on moulded case circuit breaker handle, is favorable to realizing the assembly of this electric operating mechanism and moulded case circuit breaker, and assembly efficiency is higher. Therefore, the electric operating mechanism has the advantages of simple structure, stable and reliable performance, safety, reliability, small volume and convenient assembly.

Particularly, the slider on be provided with and assemble the hole, the external member on be provided with the suit hole on moulded case circuit breaker handle, the external edge department that corresponds the suit hole on the external member be provided with assemble hole matched with bulge loop, bulge loop block assemble downtheholely, and constitute the joint cooperation of slider and external member. The slider is connected with the external member in an assembling mode, so that the slider and the external member are convenient to assemble, the slider assembly is convenient to assemble with the handle of the molded case circuit breaker and the cam, the assembly efficiency is favorably improved, the slider assembly with the structural design is simpler in structure, more convenient to produce and simpler in production process.

Particularly, two abutting inclined planes matched with the handle of the molded case circuit breaker are respectively arranged in the sleeving holes of the sleeve. When the external member is used for executing the opening and closing actions, the conflict inclined plane can be attached to the handle of the molded case circuit breaker, the contact area between the external member and the handle of the molded case circuit breaker is increased, the handle of the molded case circuit breaker can be reliably driven by the external member, and therefore the working reliability of the electric operating mechanism is improved.

Particularly, the manual driving assembly comprises an operating shaft and a connecting plate, the operating shaft is rotatably arranged on the framework, the connecting plate is in linkage fit with the operating shaft, an operating hole exposed outside the shell is formed in the operating shaft, one end of the connecting plate is movably arranged on the sliding block, the sliding block moves along with the connecting plate, and the sliding block can slide on the framework in a reciprocating mode. During operation, the operating shaft is rotated to drive the connecting plate, and the connecting plate drives the sliding block to slide on the machine frame in a reciprocating mode, so that manual switching-on or switching-off of the molded case circuit breaker can be achieved. The manual driving assembly is simpler in structural design and more convenient and faster to operate.

Particularly, the operating shaft is provided with a switching-on/off indicating plate corresponding to the operating hole in a linkage manner, the shell is provided with an indicating hole corresponding to the switching-on/off indicating plate, and the switching-on/off indicating plate is respectively provided with a switching-off indicating mark and a switching-on indicating mark which are matched with the indicating hole. The opening and closing indicating plate is arranged on the operating shaft and acts along with the operating shaft, so that opening and closing indication of the electric operating mechanism can be realized, and the safety performance of the electric operating mechanism can be improved.

Particularly, one end of the connecting plate is rotatably arranged on the roller, the sliding block is provided with a sliding groove matched with the roller, and the roller is arranged in the sliding groove and forms linkage matching of the sliding block and the connecting plate. The connecting plate is provided with the roller, so that the connecting plate and the sliding block can be assembled conveniently, and the transmission between the connecting plate and the sliding block can be ensured to be more reliable.

Particularly, the mechanism frame is provided with an arrearage monitoring microswitch matched with the sliding block, and the sliding block can trigger the arrearage monitoring microswitch so as to realize the connection or disconnection of the arrearage monitoring microswitch. When a user owes the fee, the user manually operates the electric operating mechanism to a switch-on position, at the moment, the slider triggers the arrearage monitoring microswitch, the intelligent control circuit board monitors an arrearage signal and controls the motor to start, and the motor drives the slider to execute a switch-off action through the cam, so that the arrearage electric switch-off of the electric operating mechanism is realized, and the improvement of the intelligent management of a power grid is facilitated.

Particularly, the mechanism frame is provided with a switching-on and switching-off monitoring microswitch corresponding to the cam, the cam rotates along with the output shaft of the motor and can toggle the contact of the switching-on and switching-off monitoring microswitch, and the switching-on and switching-off of the switching-on and switching-off monitoring microswitch can be realized. The opening and closing monitoring microswitch can monitor along with the working state of the cam, thereby being beneficial to improving the working reliability of the electric operating mechanism.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention.

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

Fig. 3 is an internal structural view of the embodiment of the present invention.

FIG. 4 is an assembly view of the manual drive assembly and the slider assembly according to an embodiment of the present invention.

FIG. 5 is a perspective view of a slider assembly according to an embodiment of the present invention.

FIG. 6 is a perspective view of a slider according to an embodiment of the present invention.

FIG. 7 is a perspective view of a kit according to an embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 7, an embodiment of the present invention is an electric operating mechanism, including a housing 10, a mechanism frame 11 disposed in the housing 10, an intelligent control circuit board 12 disposed on the mechanism frame 11, an electric driving assembly 20 disposed on the mechanism frame 11, a slider assembly 30 slidably disposed on the mechanism frame 11 and capable of driving a molded case circuit breaker handle to perform opening and closing, and a manual driving assembly 40 disposed on the mechanism frame 11, where the electric driving assembly 20 includes a motor 21 disposed on the mechanism frame 11, a cam 22 linked with the motor 21, the cam 22 is linked with an output shaft 211 of the motor 21, the slider assembly 30 includes a slider 31 slidably disposed on the mechanism frame 11 and linked with the cam 22, and a sleeve 32 sleeved on the molded case circuit breaker handle and linked with the slider 31, the cam 22 is rotatably disposed with a dial wheel 23 linked with the slider 31, the slide block 31 is provided with two protrusions 311 respectively matched with the thumb wheel 23, the thumb wheel 23 moves along with the cam 22 and can push the two protrusions 311, and the slide block 31 can slide on the machine frame 11 in a reciprocating manner.

As shown in fig. 5, 6 and 7, the slider 31 is provided with an assembling hole 312, the kit 32 is provided with a sleeving hole 321 sleeved on the handle of the molded case circuit breaker, a protruding ring 322 matched with the assembling hole 312 is arranged at the outer edge of the kit 32 corresponding to the sleeving hole 321, and the protruding ring 322 is clamped in the assembling hole 312 and forms a clamping fit between the slider 31 and the kit 32. The slider is connected with the external member in an assembling mode, so that the slider and the external member are convenient to assemble, the slider assembly is convenient to assemble with the handle of the molded case circuit breaker and the cam, the assembly efficiency is favorably improved, the slider assembly with the structural design is simpler in structure, more convenient to produce and simpler in production process. The sleeving holes 321 of the sleeve member 32 are respectively provided with two abutting inclined planes 323 matched with the handle of the molded case circuit breaker. When the external member is used for executing the opening and closing actions, the conflict inclined plane can be attached to the handle of the molded case circuit breaker, the contact area between the external member and the handle of the molded case circuit breaker is increased, the handle of the molded case circuit breaker can be reliably driven by the external member, and therefore the working reliability of the electric operating mechanism is improved.

As shown in fig. 3 and 4, the manual driving unit 40 includes an operating shaft 41 rotatably disposed on the frame 11, and a connecting plate 42 cooperating with the operating shaft 41, wherein the operating shaft 41 is provided with an operating hole 411 exposed outside the housing 10, one end of the connecting plate 42 is movably disposed on the slider 31, and the slider 31 moves along with the connecting plate 42 and can realize the reciprocating sliding of the slider 31 on the frame 11. During operation, the operating shaft is rotated to drive the connecting plate, and the connecting plate drives the sliding block to slide on the machine frame in a reciprocating mode, so that manual switching-on or switching-off of the molded case circuit breaker can be achieved. The manual driving assembly is simpler in structural design and more convenient and faster to operate. The operating shaft 41 is provided with a switching-on/off indicating plate 43 corresponding to the operating hole 411 in a linkage manner, the shell 10 is provided with an indicating hole 101 corresponding to the switching-on/off indicating plate 43, and the switching-on/off indicating plate 43 is provided with a switching-off indicating mark 431 and a switching-on indicating mark 432 which are matched with the indicating hole 101 respectively. The opening and closing indicating plate is arranged on the operating shaft and acts along with the operating shaft, so that opening and closing indication of the electric operating mechanism can be realized, and the safety performance of the electric operating mechanism can be improved. One end of the connecting plate 42 is rotatably arranged on the roller 44, the sliding block 31 is provided with a sliding groove 313 matched with the roller 44, and the roller 44 is arranged in the sliding groove 313 and forms linkage matching of the sliding block 31 and the connecting plate 42. The connecting plate is provided with the roller, so that the connecting plate and the sliding block can be assembled conveniently, and the transmission between the connecting plate and the sliding block can be ensured to be more reliable.

As shown in fig. 3, the framework 11 is provided with an arrearage monitoring microswitch 13 matched with the slide block 31, and the slide block 31 can trigger the arrearage monitoring microswitch 13 to realize the connection or disconnection of the arrearage monitoring microswitch 13. When a user owes the fee, the user manually operates the electric operating mechanism to a switch-on position, at the moment, the slider triggers the arrearage monitoring microswitch, the intelligent control circuit board monitors an arrearage signal and controls the motor to start, and the motor drives the slider to execute a switch-off action through the cam, so that the arrearage electric switch-off of the electric operating mechanism is realized, and the improvement of the intelligent management of a power grid is facilitated. The mechanism frame 11 is provided with a switch-on/off monitoring microswitch 14 corresponding to the cam 22, the cam 22 rotates along with the output shaft 211 of the motor 21 and can toggle the contact of the switch-on/off monitoring microswitch 14, and the switch-on/off of the switch-on/off monitoring microswitch 14 can be realized. The opening and closing monitoring microswitch can monitor along with the working state of the cam, thereby being beneficial to improving the working reliability of the electric operating mechanism.

The motor drives the cam to rotate, the cam drives the sliding block to act, and the external member acts along with the sliding block and stirs the handle of the molded case circuit breaker, so that the electric switching-on or switching-off of the molded case circuit breaker can be realized. The electric driving assembly is simpler in structure, smaller in occupied space and more reliable in transmission. Be provided with two lugs with thumb wheel matched with on the slider to can guarantee that the cam can reliably drive the slip action, and two lugs set up the both ends at the slider, when the assembly, two lugs can not cause the interference to the position of thumb wheel, and it is more convenient to install. And be provided with the external member of suit on moulded case circuit breaker handle on the slider to be convenient for the installation of sliding block set spare and moulded case circuit breaker handle, when the installation, the assembly personnel need not adjust the position of moulded case circuit breaker handle, can directly suit the sliding block set spare on moulded case circuit breaker handle, is favorable to realizing the assembly of this electric operating mechanism and moulded case circuit breaker, and assembly efficiency is higher. Therefore, the electric operating mechanism has the advantages of simple structure, stable and reliable performance, safety, reliability, small volume and convenient assembly.

Claims

1. The utility model provides an electric operating mechanism, includes the casing, sets up the framework in the casing, set up intelligent control circuit board on the framework, set up electric drive assembly on the framework, slide and set up on the framework and can drive moulded case circuit breaker handle and carry out the sliding block set spare of separating brake and closing a floodgate, set up the manual drive subassembly on the framework, its characterized in that: the electric driving assembly comprises a motor arranged on a framework and a cam arranged in a linkage mode with the motor, the sliding block assembly comprises a sliding block arranged on the framework in a sliding mode and in linkage fit with the cam, a sliding block sleeved on a handle of the molded case circuit breaker and in linkage fit with the sliding block, a shifting wheel matched with the sliding block is arranged on the cam in a rotating mode, two convex blocks matched with the shifting wheel are arranged on the sliding block respectively, the shifting wheel moves along with the cam and can push the two convex blocks, and the sliding block can slide on the framework in a reciprocating mode.

2. The electric operating mechanism according to claim 1, wherein: the slider on be provided with and assemble the hole, the external member on be provided with the suit hole on moulded case circuit breaker handle, the external member on correspond the outer fringe department in suit hole be provided with assemble hole matched with bulge loop, bulge loop block assemble downtheholely, and constitute the joint cooperation of slider and external member.

3. The electric operating mechanism of claim 2, wherein: the sleeving holes of the external member are respectively provided with two abutting inclined planes matched with the handle of the molded case circuit breaker.

4. The electric operating mechanism according to claim 1 or 2, characterized in that: the manual driving assembly comprises an operating shaft and a connecting plate, the operating shaft is rotatably arranged on the framework, the connecting plate is in linkage fit with the operating shaft, an operating hole exposed outside the shell is formed in the operating shaft, one end of the connecting plate is movably arranged on the sliding block, the sliding block moves along with the connecting plate, and the sliding block can slide on the framework in a reciprocating mode.

5. The electric operating mechanism of claim 4, wherein: the operating shaft is provided with a switching-on/off indicating plate corresponding to the operating hole in a linkage manner, the shell is provided with an indicating hole corresponding to the switching-on/off indicating plate, and the switching-on/off indicating plate is respectively provided with a switching-off indicating mark and a switching-on indicating mark matched with the indicating hole.

6. The electric operating mechanism of claim 4, wherein: one end of the connecting plate is rotatably arranged on the roller, the sliding block is provided with a sliding groove matched with the roller, and the roller is arranged in the sliding groove and forms linkage matching of the sliding block and the connecting plate.

7. The electric operating mechanism according to claim 1 or 2, characterized in that: the mechanism frame is provided with an arrearage monitoring microswitch matched with the sliding block, and the sliding block can trigger the arrearage monitoring microswitch to realize the connection or disconnection of the arrearage monitoring microswitch.

8. The electric operating mechanism according to claim 1 or 2, characterized in that: the mechanism frame on correspond cam department and be provided with divide-shut brake monitoring micro-gap switch, the cam rotate and can stir divide-shut brake monitoring micro-gap switch's contact along with the output shaft of motor, and can realize the switch-on or disconnection of divide-shut brake monitoring micro-gap switch.