CN213877995U - Energy storage operation switching device and circuit breaker - Google Patents
Energy storage operation switching device and circuit breaker Download PDFInfo
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- CN213877995U CN213877995U CN202120068525.4U CN202120068525U CN213877995U CN 213877995 U CN213877995 U CN 213877995U CN 202120068525 U CN202120068525 U CN 202120068525U CN 213877995 U CN213877995 U CN 213877995U
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Abstract
The present disclosure discloses an energy storage operation switching device and a circuit breaker including the same. The device comprises an energy storage module, a switching module and a mechanism panel. The energy storage module comprises an energy storage motor, a reduction gearbox electrically connected with the energy storage motor and an output shaft connected with the reduction gearbox, and a manual operation shaft is arranged on one side of the reduction gearbox, which is far away from the energy storage motor. The switching module is located one side of the energy storage module departing from the energy storage motor, and comprises a fixed support, a cam, a baffle and a travel switch, wherein the fixed support is installed on a side plate of a mechanism box of the circuit breaker, the cam is movably installed on the fixed support, the baffle is connected with the cam, the travel switch is installed on the fixed support, a poking pin is arranged on the baffle, and the cam can rotate relative to the fixed support. The mechanism panel is located on one side, away from the energy storage module, of the switching module, a first opening and a second opening are formed in the mechanism panel, the shifting pin penetrates through the first opening and protrudes out of the first opening, and the second opening and the manual operation shaft are arranged oppositely.
Description
Technical Field
The disclosure relates to the field of power transmission and distribution equipment of a power system, in particular to an energy storage operation switching device and a circuit breaker.
Background
Switchgear serves as switching, control and protection in the power generation, transmission and distribution and power conversion of electrical power systems. Circuit breakers are one of the most important components in switchgear. The energy storage operation switching device is an important component of the circuit breaker and is used for switching the operation mode of energy storage of the circuit breaker, namely switching between manual operation and electric operation. When an operator holds the operating handle to manually perform the energy storage operation of the circuit breaker, the operating handle needs to be prevented from being injured by the action of the operating handle by ensuring that the energy storage motor does not act or is not driven when the energy storage motor acts.
The common structure of the current circuit breaker energy storage operation switching device is a mechanical clutch type structure. The structure mechanically isolates the electric energy storage operation module from the manual energy storage operation module, so that the actions of the electric energy storage operation module and the manual energy storage operation module are not interfered with each other. However, the mechanical clutch structure is complex and costly, and the space for installing the operating mechanism in the circuit breaker is limited.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the structure of an energy storage operation switching device in the related art is complex and the size is large, the energy storage operation switching device is simple in structure and small in occupied space.
The present disclosure provides an energy storage operation switching device for switching an energy storage operation mode of a circuit breaker, including:
the energy storage module comprises an energy storage motor, a reduction gearbox electrically connected with the energy storage motor and an output shaft connected with the reduction gearbox, wherein a manual operation shaft is arranged on one side of the reduction gearbox, which is far away from the energy storage motor;
the switching module is positioned on one side of the energy storage module, which is far away from the energy storage motor, and comprises a fixed support arranged on a side plate of a mechanism box of the circuit breaker, a cam movably arranged on the fixed support, a baffle plate connected with the cam and a travel switch arranged on the fixed support, wherein the travel switch is used for controlling the on-off of a control loop of the energy storage motor, a shifting pin is arranged on the baffle plate, and the cam can rotate relative to the fixed support; and
the mechanism panel is positioned on one side, away from the energy storage module, of the switching module, a first opening and a second opening are formed in the mechanism panel, the shifting pin penetrates through the first opening and protrudes out of the first opening, and the second opening is arranged opposite to the manual operation shaft;
when the cam rotates to a first position, the elevation surface of the cam is in contact with the travel switch, the energy storage motor is disconnected, and the manual operation shaft is exposed relative to the second opening, so that an operation handle can be inserted into the manual operation shaft through the second opening; when the cam rotates to the second position, the low-stroke surface of the cam is in contact with the travel switch, the control circuit of the energy storage motor is in a closed state, the baffle covers the second opening hole, and the manual operation shaft is hidden relative to the second opening hole.
Optionally, the fixed bracket includes a web, and a first side wing and a second side wing extending from the web in the same direction, the first side wing is connected with a side plate of the mechanism box, and the second side wing is connected with the travel switch;
the second side wing is inclined relative to the first side wing, the second side wing comprises two secondary wings, and an installation space for installing the travel switch is formed between the two secondary wings;
the top of web is provided with dodges the groove, is close to dodge groove department and be provided with and be used for the installation the mounting hole of cam.
Optionally, the cam has a first end face and a second end face which are opposite to each other, a U-shaped boss is formed on the first end face, the U-shaped boss is formed with the high-level face and the low-level face, a through hole is formed in the cam, and the through hole is located in a groove which is surrounded by the U-shaped boss.
Optionally, a first stud and a second stud are arranged on the baffle, the first stud penetrates through the mounting hole of the fixing bracket and one through hole of the cam, and the baffle, the fixing bracket and the cam are fixedly connected;
the second stud penetrates through the other through hole of the cam, so that the baffle and the cam are fixedly connected.
Optionally, an annular boss is arranged on the periphery of one through hole of the second end face of the cam, and the annular boss can be inserted into the mounting hole of the fixing bracket;
and a lug-shaped boss is arranged on the periphery of the other through hole on the second end surface of the cam and is positioned in the avoidance groove of the fixed bracket.
Optionally, the first opening is an arc waist-shaped long hole, the poking pin can slide in the first opening under the action of external force, and the poking pin can drive the baffle and the cam to rotate;
when the shifting pin is moved to one end of the first opening, the cam is driven to rotate to a second position, and the energy storage device is electrically operated;
when the shifting pin is moved to the other end of the first opening, the cam is driven to rotate to the first position, and the energy storage device is manually operated.
Optionally, the manual operation shaft is directly connected to the output shaft, and the output shaft is connected to an energy storage device of the circuit breaker.
Optionally, the cam comprises an eccentric.
Optionally, the mechanism panel is a front panel of a mechanism box of the circuit breaker.
The utility model provides a circuit breaker, include mechanism case, install energy memory and foretell energy storage operation auto-change over device in the mechanism case, mechanism case includes front panel and curb plate, the fixed bolster of switching module with the curb plate is connected, mechanism panel is the front panel of mechanism case of circuit breaker.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
the present disclosure provides an energy storage operation switching device, which includes an energy storage module, a switching module, and a mechanism panel. The energy storage module comprises an energy storage motor, a reduction gearbox electrically connected with the energy storage motor and an output shaft connected with the reduction gearbox, and a manual operation shaft is arranged on one side of the reduction gearbox, which is far away from the energy storage motor. The switching module is located on one side, deviating from the energy storage motor, of the energy storage module and comprises a fixed support, a cam, a baffle and a travel switch, wherein the fixed support is installed on a side plate of a mechanism box of the circuit breaker, the cam is movably installed on the fixed support, the baffle is connected with the cam, the travel switch is installed on the fixed support, the travel switch is used for controlling the on-off of a control loop of the energy storage motor, a poking pin is arranged on the baffle, and the cam can rotate relative to the fixed support. The mechanism panel is located on one side, away from the energy storage module, of the switching module, a first opening and a second opening are formed in the mechanism panel, the shifting pin penetrates through the first opening and protrudes out of the first opening, and the second opening and the manual operating shaft are arranged oppositely. When the cam rotates to a first position, the elevation surface of the cam is in contact with the travel switch, the energy storage motor is disconnected, and the manual operation shaft is exposed relative to the second opening, so that an operation handle can be inserted into the manual operation shaft through the second opening; when the cam rotates to the second position, the low-stroke surface of the cam is in contact with the travel switch, the control circuit of the energy storage motor is in a closed state, the baffle covers the second opening hole, and the manual operation shaft is hidden relative to the second opening hole. Therefore, when manual operation is carried out, the motor is disconnected, and the situation that the motor drives the operating handle to move when the manual operation is carried out is avoided; when carrying out electric operation, the manually operation axle is shielded invisible by the baffle, can not carry out manual operation, consequently can effectively avoid energy storage motor to drive operating handle motion when rotating, and the accidental injury operating personnel to the switching module of this disclosure includes fixed bolster, cam and baffle, and the structure is succinct, and is small, is favorable to the miniaturization of product.
The circuit breaker comprises a mechanism box, an energy storage device and the energy storage operation switching device, wherein the energy storage device is arranged in the mechanism box, the mechanism box comprises a front panel and a side plate, a fixing support of a switching module is connected with the side plate, and the mechanism panel is the front panel of the mechanism box of the circuit breaker. The circuit breaker adopts the energy storage switching device, so that the size is reduced, and the miniaturization of a product is facilitated.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic configuration diagram illustrating an operation switching device in an electric state according to an exemplary embodiment.
Fig. 2 is a schematic configuration diagram illustrating the operation switching device in a manual state according to an exemplary embodiment.
Fig. 3 is a schematic diagram illustrating a structure of a switching module of an operation switching device in an electric state according to an exemplary embodiment.
Fig. 4 is a schematic structural diagram illustrating a switching module of the operation switching apparatus in a manual state according to an exemplary embodiment.
Fig. 5 is a schematic diagram of an energy storage module operating a switching device according to an exemplary embodiment.
Fig. 6 is a schematic structural view illustrating a fixing bracket of a switching module of the operation switching apparatus according to an exemplary embodiment.
Fig. 7 is a schematic structural diagram illustrating a cam operating a switching module of the switching apparatus according to an exemplary embodiment.
Fig. 8 is a schematic structural diagram illustrating a shutter of a switching module operating a switching device according to an exemplary embodiment.
Detailed Description
For further explanation of the principles and construction of the present disclosure, reference will now be made in detail to the preferred embodiments of the present disclosure, which are illustrated in the accompanying drawings.
The present disclosure provides a circuit breaker including a mechanism case (not shown), an energy storage device installed in the mechanism case, and an energy storage operation switching device. A main switch of the circuit breaker and the like are also arranged in the mechanism box. The mechanism box comprises a front panel and a side plate.
The energy storage device is mainly used for stretching a closing or opening spring to enable the closing or opening spring to have corresponding potential energy so as to accelerate the closing or opening speed of the main switch of the circuit breaker.
The energy storage operation switching device is used for realizing the switching of the energy storage operation mode, for example, switching from a manual operation mode to an electric operation mode or switching from the electric operation mode to the manual operation mode.
As shown in fig. 1 to 4, the energy storage operation switching device 10 includes an energy storage module 11, a switching module 12, and a mechanism panel 13. The front panel of the mechanism box is the mechanism panel 13 of the switching device (only a part of the mechanism panel is shown in fig. 1 and 2).
Referring to fig. 5, the energy storage module 11 includes an energy storage motor 111, a reduction box 112 electrically connected to the energy storage motor 111, and an output shaft 113 connected to the reduction box 112. When the control circuit of the energy storage motor 111 is connected, the energy storage motor 111 drives the reduction box 112 to move, and the reduction box 112 drives the output shaft 113 to rotate. The output shaft 113 is connected to an energy storage device to extend a spring of the energy storage device for storing energy.
The energy storage motor 111 and the output shaft 113 are located on the same side of the reduction box 112, i.e. the energy storage motor 111 and the output shaft 113 are located on the rear side of the reduction box 112 with respect to the entire circuit breaker. A manual operating shaft 114 is also arranged on the other side of the speed reducer 112, which is far away from the energy storage motor 111. The manual operating shaft 114 is directly connected to the output shaft 113, and when the manual operating shaft 114 rotates, the output shaft 113 is driven to rotate.
The switching module 12 is located on a side of the energy storage module 11 facing away from the energy storage motor 111, i.e. on a rear side of the energy storage module 11. The switching module 12 includes a fixed bracket 121 mounted on a side plate of a mechanism case of the circuit breaker, a cam 122 movably mounted on the fixed bracket 121, a shutter 123 connected to the cam 122, and a stroke switch 124 mounted on the fixed bracket 121. The travel switch 124 is used for controlling the on-off of a control loop of the energy storage motor 111.
As shown in fig. 6, the fixing bracket 121 includes a web 1211, and a first side 1212 and a second side 1213 extending from the web 1211 in the same direction, wherein the first side 1212 is connected to a side plate of the mechanism case, and the second side 1213 is connected to the stroke switch 124. The second side wing 1213 is inclined with respect to the first side wing 1212. The second side wing 1213 includes two wings 1213a, 1213b, and an installation space for installing the stroke switch 124 is formed between the two wings 1213a, 1213 b. Both side walls of the stroke switch 124 are mounted on the secondary wings 1213a, 1213b by fasteners such as bolts.
An avoiding groove 1214 for avoiding the boss of the cam 122 is formed at the top of the web 1211, and a mounting hole 1215 for mounting the cam 122 is formed near the avoiding groove 1214.
As shown in fig. 3, 4 and 7, the cam 122 has a first end surface and a second end surface opposite to each other, the first end surface is formed with a U-shaped boss 1221, and the U-shaped boss 1221 is formed with a high-level surface 1221b and a low-level surface 1221 b. The cam 122 is provided with a through hole 1223, and as shown in fig. 3, 4 and 7, the number of the through holes 1223 may be two. The two through holes 1223 are located in the groove 1222 surrounded by the U-shaped boss 1221.
An annular boss 1224 is arranged around one through hole 1223 of the second end face of the cam 122, and a lug-shaped boss 1225 is arranged around the other through hole 1223 of the second end face of the cam. The lug-shaped bosses 1225 are positioned in the escape slots 1214 of the fixing bracket 121 such that, when the cam 122 is installed, the cam 122 is snapped in from behind and the annular bosses 1224 are inserted into the mounting holes 1215 of the fixing bracket 121, and the lug-shaped bosses 1225 are positioned in the escape slots 1214. The height of the cam 122 is higher than that of the fixing bracket 121, so that the cam 122 can be driven by the baffle 123 and rotate on the fixing bracket 121.
Referring to fig. 8, a first stud 1233 and a second stud 1234 are provided on a first surface of the baffle 123. The baffle 123 is inserted from the front of the cam 122 through the mounting hole 1215 of the fixing bracket 121 and one of the through holes 1223 of the cam 122 by the first stud 1233, and the baffle 123, the fixing bracket 121 and the cam 122 are fixedly connected by a fastener such as a screw. The second stud 1234 penetrates another through hole 1223 of the cam 122, and the baffle 123 and the cam 122 are fixedly connected by a fastener such as a screw.
The second surface of the blocking plate 123 is provided with a pin 1232, and the pin 1232 is used for stirring the blocking plate 123 and the cam 122 to rotate.
As shown in fig. 1 and 2, the mechanism panel 13 is located on the side of the switching module 12 facing away from the energy storage module 11, i.e., in front of the switching module 12. The mechanism panel 13 has a first opening 131 and a second opening 132. The pulling pin 1232 penetrates the first opening 131 and protrudes out of the first opening 131. An operator may rotate the toggle pin 1232 through the first opening 131 to rotate the cam 122. The first opening 131 is an arc waist-shaped long hole, and the shifting pin 1232 can slide in the first opening 131 under the action of external force, and drives the cam 122 and the baffle 123 to rotate in the sliding process. The second opening 132 is disposed opposite the manually-operated shaft 114 such that the manually-operated shaft 114 is visible relative to the second opening 132 when the shutter 13 is rotated to a predetermined position.
When the toggle pin 1232 is moved to an end of the first opening 131 (i.e. the "power" position indicated in fig. 1), the cam 122 is rotated to the second position, as shown in fig. 1 and 3, at this time, the low-stroke surface 1221b of the cam 122 contacts the travel switch 124, the center of gravity of the cam 122 is located at the right side of the fulcrum of the fixed bracket 121, the cam 122 does not press the travel switch 124, the travel switch 124 is still in the closed state, and the control circuit of the energy storage motor 111 is in the closed state, that is, the energy storage device is electrically operated. And the shutter 13 is also rotated to a position to cover the second opening 132, the manual operation shaft 114 is hidden and invisible with respect to the second opening 132, and at this time, the operation handle cannot be inserted and cannot be manually operated.
When the shifting pin 1232 is moved to the other end of the first opening 131 (i.e. the "manual" position marked in fig. 2), the cam 122 is driven to rotate to the first position, as shown in fig. 2 and fig. 4, the elevation surface 1221a of the cam 122 touches the travel switch 124, the center of gravity of the cam 122 is located on the right side of the fulcrum of the fixed bracket 121, the cam 122 presses the travel switch 124, the travel switch 124 is toggled, the control circuit of the energy storage motor 111 is disconnected, that is, the energy storage device can be manually operated. And the shutter 13 is also rotated to a position away from the second opening 132, the manually operable shaft 114 is visible with respect to the second opening 132, exposed, and the operating handle can be inserted for manual operation.
The cam 122 comprises an eccentric.
The travel switch 124 may also be a microswitch.
The mechanism panel 13 shown in fig. 1 to 2 is a front panel of a mechanism case of a circuit breaker, and only a part of the front panel is shown.
The fixed bracket 121 of the switching module 12 is connected to the left or right side plate of the mechanism case.
The present disclosure provides an energy storage operation switching device, which includes an energy storage module, a switching module, and a mechanism panel. The energy storage module comprises an energy storage motor, a reduction gearbox electrically connected with the energy storage motor and an output shaft connected with the reduction gearbox, and a manual operation shaft is arranged on one side of the reduction gearbox, which is far away from the energy storage motor. The switching module is located on one side, deviating from the energy storage motor, of the energy storage module, and comprises a fixed support, a cam, a baffle and a travel switch, wherein the fixed support is installed on a side plate of a mechanism box of the circuit breaker, the cam is movably installed on the fixed support, the baffle is connected with the cam, the travel switch is installed on the fixed support, the travel switch is used for controlling the on-off of a control loop of the energy storage motor, a poking pin is arranged on the baffle, and the cam can rotate relative to the fixed support. The mechanism panel is located on one side, away from the energy storage module, of the switching module, a first opening and a second opening are formed in the mechanism panel, the shifting pin penetrates through the first opening and protrudes out of the first opening, and the second opening and the manual operation shaft are arranged oppositely. When the cam rotates to the first position, the elevation surface of the cam is in contact with the travel switch, the energy storage motor is disconnected, and the manual operation shaft is exposed relative to the second opening, so that the operation handle can be inserted into the manual operation shaft through the second opening; when the cam rotates to the second position, the low-stroke surface of the cam is contacted with the travel switch, the control loop of the energy storage motor is in a closed state, the baffle covers the second opening hole, and the manual operating shaft is concealed relative to the second opening hole. Therefore, when manual operation is carried out, the motor is disconnected, and the situation that the motor drives the operating handle to move when the manual operation is carried out is avoided; when carrying out electric operation, the manually operation axle is shielded invisible by the baffle, can not carry out manual operation, consequently can effectively avoid energy storage motor to drive operating handle motion when rotating, and the accidental injury operating personnel to the switching module of this disclosure includes fixed bolster, cam and baffle, and the structure is succinct, and is small, is favorable to the miniaturization of product.
The above description is only for the purpose of illustrating the preferred embodiments of the present disclosure and is not to be construed as limiting the scope of the present disclosure, but rather is intended to cover all equivalent structural changes made by applying the teachings of the present disclosure to the accompanying drawings.
Claims (10)
1. An energy storage operation switching apparatus for switching an energy storage operation mode of a circuit breaker, comprising:
the energy storage module comprises an energy storage motor, a reduction gearbox electrically connected with the energy storage motor and an output shaft connected with the reduction gearbox, wherein a manual operation shaft is arranged on one side of the reduction gearbox, which is far away from the energy storage motor;
the switching module is positioned on one side of the energy storage module, which is far away from the energy storage motor, and comprises a fixed support arranged on a side plate of a mechanism box of the circuit breaker, a cam movably arranged on the fixed support, a baffle plate connected with the cam and a travel switch arranged on the fixed support, wherein the travel switch is used for controlling the on-off of a control loop of the energy storage motor, a shifting pin is arranged on the baffle plate, and the cam can rotate relative to the fixed support; and
the mechanism panel is positioned on one side, away from the energy storage module, of the switching module, a first opening and a second opening are formed in the mechanism panel, the shifting pin penetrates through the first opening and protrudes out of the first opening, and the second opening is arranged opposite to the manual operation shaft;
when the cam rotates to a first position, the elevation surface of the cam is in contact with the travel switch, the energy storage motor is disconnected, and the manual operation shaft is exposed relative to the second opening, so that an operation handle can be inserted into the manual operation shaft through the second opening; when the cam rotates to the second position, the low-stroke surface of the cam is in contact with the travel switch, the control circuit of the energy storage motor is in a closed state, the baffle covers the second opening hole, and the manual operation shaft is hidden relative to the second opening hole.
2. The energy storage operation switching device according to claim 1, wherein the fixing bracket includes a web, and a first side wing and a second side wing extending from the web in the same direction, the first side wing is connected to a side plate of the mechanism case, and the second side wing is connected to the travel switch;
the second side wing is inclined relative to the first side wing, the second side wing comprises two secondary wings, and an installation space for installing the travel switch is formed between the two secondary wings;
the top of web is provided with dodges the groove, is close to dodge groove department and be provided with and be used for the installation the mounting hole of cam.
3. The device for switching between energy storage operations according to claim 2, wherein the cam has a first end face and a second end face opposite to each other, a U-shaped boss is formed on the first end face, the high-level face and the low-level face are formed on the U-shaped boss, and a through hole is formed in the cam and is located in a groove surrounded by the U-shaped boss.
4. The energy storage operation switching device according to claim 3, wherein the baffle plate is provided with a first stud and a second stud, the first stud penetrates through the mounting hole of the fixing bracket and one of the through holes of the cam to fixedly connect the baffle plate, the fixing bracket and the cam;
the second stud penetrates through the other through hole of the cam, so that the baffle and the cam are fixedly connected.
5. The energy storage operation switching device according to claim 4, wherein an annular boss is arranged on the periphery of a through hole in the second end face of the cam, and the annular boss can be inserted into the mounting hole of the fixed bracket;
and a lug-shaped boss is arranged on the periphery of the other through hole on the second end surface of the cam and is positioned in the avoidance groove of the fixed bracket.
6. The energy storage operation switching device according to claim 1, wherein the first opening is an arc waist-shaped long hole, the shift pin can slide in the first opening under the action of external force, and the shift pin can drive the baffle and the cam to rotate;
when the shifting pin is moved to one end of the first opening, the cam is driven to rotate to a second position, and the energy storage device is electrically operated;
when the shifting pin is moved to the other end of the first opening, the cam is driven to rotate to the first position, and the energy storage device is manually operated.
7. The energy storage operation switching device according to claim 1, wherein the manually operated shaft is directly connected to the output shaft, and the output shaft is connected to an energy storage device of a circuit breaker.
8. The energy storing operation switching device according to claim 1, wherein the cam comprises an eccentric.
9. The energy storage operation switching device according to claim 1, wherein the mechanism panel is a front panel of a mechanism case of the circuit breaker.
10. A circuit breaker comprising a mechanism case, an energy storage device installed in the mechanism case, and the energy storage operation switching device as claimed in any one of claims 1 to 9, wherein the mechanism case comprises a front panel and a side plate, a fixed bracket of the switching module is connected with the side plate, and the mechanism panel is the front panel of the mechanism case of the circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120068525.4U CN213877995U (en) | 2021-01-12 | 2021-01-12 | Energy storage operation switching device and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120068525.4U CN213877995U (en) | 2021-01-12 | 2021-01-12 | Energy storage operation switching device and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213877995U true CN213877995U (en) | 2021-08-03 |
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ID=77045161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120068525.4U Active CN213877995U (en) | 2021-01-12 | 2021-01-12 | Energy storage operation switching device and circuit breaker |
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| Country | Link |
|---|---|
| CN (1) | CN213877995U (en) |
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2021
- 2021-01-12 CN CN202120068525.4U patent/CN213877995U/en active Active
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