Energy storage device

Abstract

An embodiment of the present invention provides an energy storage device for storing energy for the closing spring of a circuit breaker. The energy storage device includes: an electric energy storage unit that generates an electric driving force by using the obtained electric power; a manual energy storage unit that generates a manual driving force through manual operation; a transmission unit that transmits the electric driving force and the manual driving force to the closing spring to deform the closing spring so as to store energy for the closing spring; and a control unit that is electrically connected to the electric energy storage unit and mechanically connected to the manual energy storage unit. Wherein, when the manual energy storage unit generates the manual driving force, the control unit controls the electric energy storage unit to stop obtaining electric power to interrupt the electric driving force. The solution of this embodiment avoids the harm caused to the operator by situations such as electric leakage of the electric energy storage unit, and improves the safety of the operator during the energy storage operation.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of electrical technologies, and particularly to an energy storage device. Background Art

[0002] In the electrical field, a circuit breaker can not only cut off or close the no-load current and load current in a high-voltage circuit, but also cut off the overload current and short-circuit current when a fault occurs in the electrical system through the action of a relay protection device. The circuit breaker uses a closing spring and a tripping spring to ensure both the working current of the electrical system in the normal working state and to provide a quite perfect arc extinguishing structure and sufficient current breaking capacity when a fault occurs in the electrical system.

[0003] Generally speaking, in the routine operation of a circuit breaker, the closing spring can be energized through manual operation and an electric closing spring energy storage device, which improves the closing speed of the closing spring and thus ensures the stable working state of the electronic system.

[0004] Usually, when an operator performs manual operation on the energy storage device of the closing spring, electric energy storage operation is also allowed. In other words, being connected to the power supply with the motor on causes potential safety hazards for the relevant operator during the manual energy storage operation. Summary of the Invention

[0005] To solve the above problems, embodiments of the present invention provide an energy storage device. The energy storage device is used to store energy for the closing spring of a circuit breaker. The energy storage device includes: an electric energy storage unit that generates an electric driving force by using the obtained electric power; a manual energy storage unit that generates a manual driving force through manual operation; a transmission unit that transmits the electric driving force and the manual driving force to the closing spring to cause the closing spring to deform; a control unit that is electrically connected to the electric energy storage unit and mechanically connected to the manual energy storage unit. Wherein, when the manual energy storage unit generates the manual driving force, the control unit controls the electric energy storage unit to stop obtaining electric power to interrupt the electric driving force.

[0006] Since when the manual energy storage unit generates the manual driving force, the control unit controls the electric energy storage unit to stop obtaining electric power and interrupts the electric driving force, it avoids the harm caused to the operator by situations such as electric leakage of the electric energy storage unit, and improves the safety of the operator during the energy storage operation.

[0007] In another implementation of the present invention, the transmission unit is connected between the closing spring and the manual energy storage unit. The transmission unit transmits the manual driving force to the closing spring. Wherein, the manual energy storage unit is connected between the electric energy storage unit and the transmission unit. The transmission unit obtains the electric driving force via the manual energy storage unit and transmits the electric driving force to the closing spring.

[0008] Based on such an arrangement, the manual energy storage unit is connected between the electric energy storage unit and the transmission unit, and the manual energy storage unit is reused for transmission. For example, when the electric energy storage unit fails, the transmission path between the circuit energy storage unit and the transmission unit can be disconnected by moving the manual energy storage unit, improving the flexibility of the energy storage device for manual operation.

[0009] In another implementation of the present invention, the transmission unit is connected between the closing spring and the manual energy storage unit. The transmission unit transmits the manual driving force to the closing spring. Wherein, the transmission unit is also connected between the closing spring and the electric energy storage unit. The transmission unit transmits the electric driving force to the closing spring.

[0010] Based on such an arrangement, the manual energy storage unit and the electric energy storage unit are connected to a common transmission unit to realize the transmission of the manual driving force and the electric driving force, making the structure of the energy storage device more compact.

[0011] In another implementation of the present invention, the control unit includes a control circuit and a switch. The electric energy storage unit is a motor. Wherein, the control circuit is electrically connected to the motor, and the control circuit includes a first control state for controlling the motor to obtain power and a second control state for controlling the motor to stop obtaining power. Wherein, the switch is mechanically connected to the manual energy storage unit. When the manual energy storage unit provides a manual driving force, the switch switches the control circuit from the first control state to the second control state.

[0012] In this embodiment, the control circuit and the switch simplify the configuration of the control unit and reliably switch from the first control state for controlling the motor to obtain power to the second control state for controlling the motor to stop obtaining power with a simple configuration.

[0013] In another implementation of the present invention, the control unit further includes a switch actuation assembly. The switch includes a joystick. When the joystick is in a first manipulation position, it manipulates the control circuit to enter the first control state. When the joystick is in a second manipulation position, it manipulates the control circuit to enter the second control state. Wherein, the joystick is mechanically connected to the manual energy storage unit. When the manual energy storage unit generates the manual driving force, the switch actuation assembly drives the joystick to move from the first manipulation position to the second manipulation position.

[0014] Since the joystick manipulates the control circuit to enter the first control state when in the first manipulation position and manipulates the control circuit to enter the second control state when in the second manipulation position, the joystick realizes stable and reliable manipulation of the control circuit. In addition, the switch actuation assembly drives the joystick to move, conveniently realizing the control of the control circuit.

[0015] In another implementation of the present invention, the switch actuation assembly includes a retaining piece and a retaining piece bracket for supporting the retaining piece. Wherein, the energy storage device further includes a mechanical frame. The electric energy storage unit, the manual energy storage unit, the transmission unit and the retaining piece bracket are fixed on the mechanical frame. The joystick is connected to one end of the retaining piece. As one end of the retaining piece moves from a first stop position to a second stop position, one end of the retaining piece drives the joystick to move from the first manipulation position to the second manipulation position. One end of the retaining piece allows the manual manipulation unit to be manually manipulated to generate the manual driving force when in the second stop position.

[0016] Since one end of the retaining piece moves from the first stop position to the second stop position and drives the joystick to move from the first manipulation position to the second manipulation position, the stability of the operation is improved. One end of the retaining piece allows the manual manipulation unit to be manually manipulated to generate the manual driving force when in the second stop position, performing more stable control on the timing of stopping power acquisition, further ensuring safety.

[0017] In another implementation of the present invention, the retaining piece bracket is provided with a guiding portion. The other end of the retaining piece is fixed to the retaining piece bracket. Wherein, one end of the retaining piece moves between the first stop position and the second stop position under the guidance of the guiding portion.

[0018] Since one end of the retaining piece moves between the first stop position and the second stop position under the guidance of the guiding portion, the reliability of the movement track of one end of the retaining piece is improved, more reliably driving the joystick to move, thereby improving the reliability of the operation of the control state.

[0019] In another implementation of the present invention, as one end of the baffle moves from the second stop position to the first stop position, one end of the baffle drives the joystick to move from the second operating position to the first operating position. Wherein, when one end of the baffle is at the second stop position, the manual operating unit is allowed to be manually operated to generate the manual driving force, and when one end of the baffle is at the first stop position, the manual operating unit is blocked from being manually operated.

[0020] Since one end of the baffle blocks the manual operating unit from being manually operated when it is at the first stop position, reliable protection for the operator is achieved, and the safety of the operator during the operation of the energy storage device is improved.

[0021] In another implementation of the present invention, the operating voltage of the circuit breaker is between 72.5 kV and 550 kV. Based on such a setting, since the equipment safety requirements for high-voltage circuit breakers with an operating voltage between 72.5 kV and 550 kV are higher, the solution in this example ensures the equipment safety of the high-voltage circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following drawings are only intended to illustrate and explain the present invention schematically and do not limit the scope of the present invention. Among them,

[0023] Figure 1 is a schematic structural diagram of an energy storage device according to an embodiment of the present invention;

[0024] Figure 2 is a schematic structural diagram of a control unit of an energy storage device according to another embodiment of the present invention;

[0025] Figure 3 is a schematic structural diagram of a switch actuating assembly of a control unit of an energy storage device according to another embodiment of the present invention;

[0026] Figure 4 is a schematic structural diagram of an energy storage device according to another embodiment of the present invention; and

[0027] Figure 5 is a schematic structural diagram of an energy storage device according to another embodiment of the present invention.

[0028] LIST OF REFERENCE NUMERALS:

[0029] 10: control unit; 11: electric energy storage unit; 12: manual energy storage unit; 18: transmission unit; 19: closing spring;

[0030] 200: Control circuit; 220: Manual operation unit; 230: Switch actuation assembly; 231: Flap; 232: Flap bracket; 213: Guide portion; 2110: Rotating shaft; 240: Switch; 241: Switch body; 242: Joystick;

[0031] 300: Control circuit;; 320: Manual operation unit; 330: Switch actuation assembly; 331: Flap; 332; Flap bracket; 340: Switch; 341: Switch body; 342: Joystick;

[0032] 400: Control unit; 410: Motor; 420: Manual operation unit; 480: Transmission gear train; 490: Closing spring;

[0033] 500: Control unit; 510: Motor; 520: Manual operation unit; 580: Transmission gear train; and 590: Closing spring. Detailed implementation manners

[0034] For a clearer understanding of the technical features, objectives, and effects of the embodiments of the present invention, the specific implementation manners of the embodiments of the present invention are now described with reference to the accompanying drawings.

[0035] Figure 1 Schematic structural diagram of an energy storage device according to an embodiment of the present invention. Figure 1 The energy storage device is used to store energy for the closing spring of a circuit breaker. It should be understood that the operating voltage of the circuit breaker can be between 72.5 kilovolts and 550 kilovolts. The circuit breaker includes a closing spring 19, which stores mechanical energy through elastic deformation and can also be referred to as an energy storage closing spring. The release of the mechanical energy stored in the closing spring 19 can improve the closing speed and stability of the circuit breaker.

[0036] Figure 1 The energy storage device includes:

[0037] An electric energy storage unit 11 that generates an electric driving force using the obtained electric power.

[0038] It should be understood that the electric energy storage unit may include a motor and a transmission part (e.g., a gear disk) rotationally fixed to the drive shaft of the motor. The electric energy storage unit may include a power acquisition part, e.g., a power supply interface. The electric energy storage unit can be connected to an external power supply, e.g., an AC power supply, through the power supply interface. In one example, the motor can be connected to the power acquisition part through a control circuit or directly electrically connected to the power acquisition part.

[0039] A manual energy storage unit 12 that generates a manual driving force through manual operation.

[0040] It should be understood that the manual energy storage unit may include a manual operation part (e.g., a manually rotated screw) and a transmission part (e.g., a gear disk) rotationally fixed to the manual operation part. As the operation end of the manual operation part is manually operated, the manual operation part rotates, driving the gear disk to rotate. Additionally, the manual operation part may also be integrally formed with the gear disk.

[0041] The transmission unit 18 transmits the electric driving force and the manual driving force to the closing spring 19, deforming the closing spring 19.

[0042] It should be understood that in one example, the gear disk may be connected to the closing spring via a first transmission path formed by the transmission unit. For example, the motor may also be connected to the closing spring via a plurality of transmission gear systems. Additionally, one end of the closing spring may be fixed to the gear disk at the end of the transmission assembly. The gear disk may be connected to the closing spring via a second transmission path formed by the transmission unit. For example, the gear disk may be connected to the closing spring via a plurality of transmission gear systems.

[0043] The control unit 10 is electrically connected to the electric energy storage unit 11 and mechanically connected to the manual energy storage unit 12.

[0044] It should be understood that the control unit may include an electrical part and a mechanical part, and the electrical part and the mechanical part may cooperate to achieve the control function of the control unit. The electrical part may be electrically connected to the electric energy storage unit, and the mechanical part may be mechanically connected to the manual energy storage unit.

[0045] When the manual energy storage unit 12 generates a manual driving force, the control unit 10 controls the electric energy storage unit 11 to stop obtaining power to interrupt the electric driving force.

[0046] It should be understood that the control unit may control the electric energy storage unit 11 to stop obtaining power in response to the manual driving force generated by the manual energy storage unit 12 through the mechanical part.

[0047] Additionally, the energy storage device may include a manual energy storage mode and an electric energy storage mode. In the manual energy storage mode, the manual energy storage unit 12 generates a manual driving force. In the manual energy storage mode, the control unit controls the electric energy storage unit to stop obtaining power to interrupt the electric driving force. The control unit may make the energy storage device enter the manual energy storage mode for allowing the manual energy storage unit to generate a manual driving force through the control operation of the mechanical part, and the electrical part responds to the mechanical operation to control the electric energy storage unit to stop obtaining power.

[0048] It should also be understood that the control unit may include a switch and a control circuit, and may operate the control circuit by turning on or off the switch of the control circuit through a component such as a joystick.

[0049] It should also be understood that each of the above units may be fixed to the mechanical frame of the energy storage device.

[0050] It should also be understood that, in one example, the drive shaft of the motor and the manually rotatable screw are fixed to different gear discs and are connected to the closing spring via the first transmission path and the second transmission path of the transmission unit respectively. In another example, the drive shaft of the motor and the manually rotatable screw are fixed to the same gear disc and are the two ends of the same transmission assembly, with one end of the same transmission assembly fixed to one end of the closing spring to achieve the energy storage operation.

[0051] When the manual energy storage unit generates a manual driving force, the control unit controls the electric energy storage unit to stop obtaining power, interrupting the electric driving force, thus avoiding the harm to the operator caused by conditions such as electric leakage in the electric energy storage unit and improving the safety of the operator during the energy storage operation.

[0052] As another implementation manner of this embodiment, the transmission unit is connected between the closing spring and the manual energy storage unit, and the transmission unit transmits the manual driving force to the closing spring. Wherein, the manual energy storage unit is connected between the electric energy storage unit and the transmission unit, and the transmission unit obtains the electric driving force via the manual energy storage unit and transmits the electric driving force to the closing spring.

[0053] Based on such a setting, the manual energy storage unit is connected between the electric energy storage unit and the transmission unit, and the manual energy storage unit is reused for transmission. For example, when the electric energy storage unit fails, the transmission path between the circuit energy storage unit and the transmission unit can be disconnected by moving the manual energy storage unit, improving the flexibility of the energy storage device for manual operation.

[0054] As another implementation manner of this embodiment, the transmission unit is connected between the closing spring and the manual energy storage unit, and the transmission unit transmits the manual driving force to the closing spring. Wherein, the transmission unit is also connected between the closing spring and the electric energy storage unit, and the transmission unit transmits the electric driving force to the closing spring.

[0055] Based on such a setting, the manual energy storage unit and the electric energy storage unit are connected to the common transmission unit to achieve the transmission of the manual driving force and the electric driving force, making the structure of the energy storage device more compact.

[0056] As another implementation manner of this embodiment, the control unit includes a control circuit and a switch. The electric energy storage unit is a motor. Wherein, the control circuit is electrically connected to the motor, and the control circuit includes a first control state for controlling the motor to obtain electric power and a second control state for controlling the motor to stop obtaining electric power. Wherein, the switch is mechanically connected to the manual energy storage unit. When the manual energy storage unit provides a manual driving force, the switch switches the control circuit from the first control state to the second control state.

[0057] In this embodiment, the control circuit and the switch simplify the configuration of the control unit, and reliably switch from the first control state for controlling the motor to obtain electric power to the second control state for controlling the motor to stop obtaining electric power by using a simple configuration.

[0058] As another implementation manner of this embodiment, the control unit further includes a switch actuation assembly. The switch includes a joystick. When the joystick is in a first manipulation position, it manipulates the control circuit to enter the first control state. When the joystick is in a second manipulation position, it manipulates the control circuit to enter the second control state. Wherein, the joystick is mechanically connected to the manual energy storage unit. When the manual energy storage unit generates the manual driving force, the switch actuation assembly drives the joystick to move from the first manipulation position to the second manipulation position.

[0059] Since the joystick manipulates the control circuit to enter the first control state when it is in the first manipulation position and manipulates the control circuit to enter the second control state when it is in the second manipulation position, the joystick realizes stable and reliable manipulation of the control circuit. In addition, the switch actuation assembly drives the joystick to move, conveniently realizing the control of the control circuit.

[0060] As another implementation manner of this embodiment, the switch actuation assembly includes a retaining piece and a retaining piece bracket for supporting the retaining piece. Wherein, the energy storage device further includes a mechanical frame. The electric energy storage unit, the manual energy storage unit, the transmission unit and the retaining piece bracket are fixed on the mechanical frame. One end of the joystick is connected to the retaining piece. As one end of the retaining piece moves from a first stopping position to a second stopping position, one end of the retaining piece drives the joystick to move from the first manipulation position to the second manipulation position. When one end of the retaining piece is in the second stopping position, the manual manipulation unit is allowed to be manually manipulated to generate the manual driving force.

[0061] Since one end of the retaining piece moves from the first stopping position to the second stopping position, one end of the retaining piece drives the operating lever to move from the first operating position to the second operating position, improving the stability of the operation. When one end of the retaining piece is in the second stopping position, the manual operating unit is allowed to be manually operated to generate a manual driving force, and more stable control is performed on the timing of stopping power acquisition, further ensuring safety.

[0062] As another implementation manner of this embodiment, the retaining piece bracket is provided with a guiding portion, and the other end of the retaining piece is fixed to the retaining piece bracket, wherein one end of the retaining piece moves between the first stopping position and the second stopping position under the guidance of the guiding portion.

[0063] Since one end of the retaining piece moves between the first stopping position and the second stopping position under the guidance of the guiding portion, the reliability of the movement track of one end of the retaining piece is improved, the operating lever is more reliably driven to move, and thus the reliability of the operation of the control state is improved.

[0064] As another implementation manner of this embodiment, as one end of the retaining piece moves from the second stopping position to the first stopping position, one end of the retaining piece drives the operating lever to move from the second operating position to the first operating position, wherein when one end of the retaining piece is in the second stopping position, the manual operating unit is allowed to be manually operated to generate the manual driving force, and when one end of the retaining piece is in the first stopping position, the manual operating unit is blocked from being manually operated.

[0065] Since one end of the retaining piece blocks the manual operating unit from being manually operated when it is in the first stopping position, reliable protection of the operator is achieved, and the safety of the operator during the operation of the energy storage device is improved.

[0066] As another implementation manner of this embodiment, the operating voltage of the circuit breaker is between 72.5 kV and 550 kV. Based on such a setting manner, since the equipment safety requirements for high-voltage circuit breakers with an operating voltage between 72.5 kV and 550 kV are higher, the solution of this example ensures the equipment safety of the high-voltage circuit breaker.

[0067] The following combines Figure 2 to describe in detail the schematic structural diagram of the control unit of the energy storage device according to another embodiment of the present invention. Figure 2 The control unit includes a control circuit 200, a switch 240, and a switch actuating assembly 230.

[0068] The control circuit 200 is electrically connected to a motor (which can be 11 in the example), and the control circuit 200 includes a first control state for controlling the motor to obtain power and a second control state for controlling the motor to stop obtaining power.

[0069] For example, the control circuit can control the connection and disconnection between the motor and an external power supply.

[0070] The switch 240 includes a switch body 241 and a joystick 242. When the joystick 242 of the switch 240 is in the first operating position, it operates the control circuit 200 to enter the first control state. When the joystick 242 is in the second operating position, it operates the control circuit 200 to enter the second control state.

[0071] The joystick 242 is mechanically connected to the manual operating unit 220. When the manual operating unit 220 provides manual driving force, the switch actuating assembly 230 drives the joystick 242 to move from the first operating position to the second operating position, and correspondingly switches the control circuit 200 from the first control state to the second control state.

[0072] In addition, the switch actuating assembly 230 includes a retaining piece 231 and a retaining piece bracket 232.

[0073] It should be understood that the retaining piece bracket 232 can be fixed to the mechanical frame of the energy storage device.

[0074] In addition, as one end of the retaining piece 231 moves from the first stopping position to the second stopping position, one end of the retaining piece 231 drives the joystick 242 to move from the first operating position to the second operating position. When one end of the retaining piece 231 is in the second stopping position, the manual operating unit 220 is allowed to be manually operated to generate manual driving force.

[0075] In addition, the retaining piece bracket 212 is provided with a guiding portion 213. The other end of the retaining piece 211 is fixed to the retaining piece bracket 212, and one end of the retaining piece 211 moves between the first stopping position and the second stopping position under the guidance of the guiding portion 213.

[0076] It should be understood that the guiding portion 213 can be implemented as a guiding groove for manual operation. For example, when guided by this guiding groove, a stable pushing or pulling operation of the retaining piece can be achieved. The first stopping position and the second stopping position can be defined by a first stopping portion and a second stopping portion, and the first stopping portion and the second stopping portion can be fixed on the retaining piece bracket or the mechanical frame.

[0077] Next, in combination with Figure 3 A schematic structural diagram of the switch actuating assembly of the control unit of the energy storage device according to another embodiment of the present invention will be described in detail. Figure 3 The control unit includes a control circuit 300, a switch 340, and a switch actuating assembly 330.

[0078] The control circuit 300 is electrically connected to the motor, and the control circuit 300 includes a first control state for controlling the motor to obtain power and a second control state for controlling the motor to stop obtaining power.

[0079] For example, the control circuit can control the connection and disconnection between the motor and an external power supply.

[0080] The switch 340 includes a switch body 341 and a joystick 342. When the joystick 342 of the switch 340 is in the first operating position, it operates the control circuit 300 to enter the first control state. When the joystick 342 is in the second operating position, it operates the control circuit 300 to enter the second control state.

[0081] The joystick 342 is mechanically connected to the manual operating unit 320. When the manual operating unit 320 provides a manual driving force, the switch actuating assembly 330 drives the joystick 342 to move from the first operating position to the second operating position, and correspondingly switches the control circuit 300 from the first control state to the second control state.

[0082] In addition, the switch actuating assembly 330 includes a retaining piece 331 and a retaining piece bracket 332.

[0083] It should be understood that the retaining piece bracket 332 can be fixed to the mechanical frame of the energy storage device.

[0084] In addition, as one end of the retaining piece 331 moves from the first stop position to the second stop position, one end of the retaining piece 331 drives the joystick 342 to move from the first operating position to the second operating position. When one end of the retaining piece 331 is in the second stop position, the manual operating unit 320 is allowed to be manually operated to generate a manual driving force.

[0085] It should be understood that the first stop position and the second stop position can be defined by a first stop portion and a second stop portion, and the first stop portion and the second stop portion can be fixed on the retaining piece bracket or the mechanical frame.

[0086] Figure 4 Schematic structural diagram of an energy storage device according to another embodiment of the present invention. Figure 4 The energy storage device includes:

[0087] An electric energy storage unit 410 that generates an electric driving force by using the acquired electric power.

[0088] A manual operating unit 420 that generates a manual driving force through manual operation.

[0089] A transmission gear train 480 that transmits the electric driving force and the manual driving force to the closing spring 19 to deform the closing spring 19. A control unit 400 is electrically connected to the electric energy storage unit 410 and mechanically connected to the manual operating unit 420.

[0090] When the manual operating unit 420 generates a manual driving force, the control unit 400 controls the electric energy storage unit 410 to stop acquiring electric power to interrupt the electric driving force.

[0091] The transmission gear train 480 is connected between the closing spring 490 and the manual operation unit 420, and the transmission gear train 480 transmits the manual driving force to the closing spring 490.

[0092] The manual operation unit 420 is connected between the electric energy storage unit 410 and the transmission gear train 480. The transmission gear train 480 obtains the electric driving force via the manual operation unit 420 and transmits the electric driving force to the closing spring 490.

[0093] It should be understood that the transmission gear train may include one or more gears. The transmission gear train may be connected to the gear transmission part (e.g., gear disk) of the manual operation unit and the gear transmission part (e.g., gear disk) of the motor. The gear transmission part of the manual operation unit and the gear transmission part of the motor may be connected to different gears in the gear transmission system to improve the flexibility of setting the tooth number ratio of the gear transmission part of the manual operation unit and the gear transmission part of the motor. In other words, the gear transmission parts of the manual operation unit and the motor that have left the factory have fixed gear parameters, and different gears in the gear transmission system may have different tooth numbers, thereby improving the adaptability flexibility of the above components to the energy storage device.

[0094] Based on such a setting, the manual energy storage unit is connected between the electric energy storage unit and the transmission unit, and the manual energy storage unit is reused for transmission. For example, when the electric energy storage unit fails, the transmission path between the circuit energy storage unit and the transmission unit can be disconnected by moving the manual energy storage unit, improving the flexibility of the energy storage device for manual operation.

[0095] Figure 5 It is a schematic structural diagram of an energy storage device according to another embodiment of the present invention. Figure 5 The energy storage device includes:

[0096] An electric energy storage unit 510 that generates an electric driving force by using the obtained electric power.

[0097] A manual operation unit 520 that generates a manual driving force via manual operation.

[0098] A transmission gear train 580 that transmits the electric driving force and the manual driving force to the closing spring 590 to deform the closing spring 590.

[0099] A control unit 500 that is electrically connected to the electric energy storage unit 510 and mechanically connected to the manual operation unit 520.

[0100] When the manual operation unit 520 generates a manual driving force, the control unit 500 controls the electric energy storage unit 510 to stop obtaining electric power to interrupt the electric driving force.

[0101] The transmission gear train 580 is connected between the closing spring 590 and the manual operation unit 520, and the transmission gear train 580 transmits the manual driving force to the closing spring 590.

[0102] The manual operation unit 520 is connected between the electric energy storage unit 510 and the transmission gear train 580. The transmission gear train 580 obtains the electric driving force via the manual operation unit 520 and transmits the electric driving force to the closing spring 590.

[0103] It should be understood that the transmission gear train may include one or more gears. The gear transmission part of the manual operation unit and the gear transmission part of the motor can be connected to any gear in the gear transmission system to improve the flexibility of setting the tooth number ratio of the gear transmission part of the manual operation unit. In other words, the gear transmission part of the manual operation unit that has left the factory has specific gear parameters, and different gears in the gear transmission system can have different numbers of teeth, thereby improving the adaptability flexibility of the above components to the energy storage device.

[0104] Based on such a setting, the manual operation unit as the manual energy storage unit and the motor as the electric energy storage unit are connected to the common transmission unit to realize the transmission of the manual driving force and the electric driving force, making the structure of the energy storage device more compact.

[0105] It should be understood that although the present invention is described according to each embodiment, not every embodiment only contains an independent technical solution. Such a narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0106] The above are only the schematic specific implementation manners of the embodiments of the present invention, and are not intended to limit the scope of the embodiments of the present invention. Any equivalent changes, modifications, and combinations made by those skilled in the art without departing from the concept and principle of the embodiments of the present invention shall fall within the scope of protection of the embodiments of the present invention.

Claims

1. An energy storage device, characterized in that, For storing energy in the closing spring (19) of a circuit breaker, the energy storage device includes: An electric energy storage unit (11) that generates an electric driving force using the obtained electric power; A manual energy storage unit (12) that generates a manual driving force through manual operation; A transmission unit (18) that transmits the electric driving force and the manual driving force to the closing spring (19), causing the closing spring (19) to deform, so as to store energy in the closing spring (19); A control unit (10) that is electrically connected to the electric energy storage unit (11) and mechanically connected to the manual energy storage unit (12), wherein the control unit (10) includes a control circuit (200) and a switch (240), the electric energy storage unit (11) is a motor, the control circuit (200) is electrically connected to the motor, and the control circuit (200) includes a first control state for controlling the motor to obtain electric power and a second control state for controlling the motor to stop obtaining electric power. Wherein, the switch (240) is mechanically connected to the manual energy storage unit (12). When the manual energy storage unit (12) provides a manual driving force, the switch (240) switches the control circuit (200) from the first control state to the second control state. Thus, when the manual energy storage unit (12) generates the manual driving force, the control unit (10) controls the electric energy storage unit (11) to stop obtaining electric power to interrupt the electric driving force, wherein the manual energy storage unit is connected between the electric energy storage unit (11) and the transmission unit (18), the transmission unit (18) obtains the electric driving force via the manual energy storage unit (12) and transmits the electric driving force to the closing spring (19), and, wherein the control unit (10) further includes a switch actuation assembly (230), the switch (240) includes a joystick (242), the joystick (242) manipulates the control circuit (200) to enter the first control state when in a first manipulation position, and the joystick (242) manipulates the control circuit (200) to enter the second control state when in a second manipulation position. Wherein, the joystick (242) is mechanically connected to the manual energy storage unit (12). When the manual energy storage unit (12) generates the manual driving force, the switch actuation assembly (230) drives the joystick (242) to move from the first manipulation position to the second manipulation position. Thus, the transmission path between the electric energy storage unit (11) and the transmission unit (18) can be disconnected by moving the manual energy storage unit (12).

2. The energy storage device according to claim 1, characterized in that, The transmission unit (18) is connected between the closing spring (19) and the manual energy storage unit (12), and the transmission unit (18) transmits the manual driving force to the closing spring (19).

3. The energy storage device according to claim 1, wherein, The transmission unit (18) is connected between the closing spring (19) and the manual energy storage unit (12), and the transmission unit (18) transmits the manual driving force to the closing spring (19). Wherein, the transmission unit (18) is further connected between the closing spring (19) and the electric energy storage unit (11), and the transmission unit (18) transmits the electric driving force to the closing spring (19).

4. The energy storage device according to claim 1, wherein the control unit (10) further includes a manual operation unit (220). The switch actuating assembly (230) includes a retaining piece (231) and a retaining piece bracket (232) supporting the retaining piece (231). Wherein, the energy storage device further includes a mechanical frame, and the electric energy storage unit (11), the manual energy storage unit (12), the transmission unit (18) and the retaining piece bracket (232) are fixed on the mechanical frame. The operating rod (242) is connected to one end of the retaining piece (231). Wherein, as one end of the retaining piece (231) moves from the first stop position to the second stop position, one end of the retaining piece (231) drives the operating rod (242) to move from the first operating position to the second operating position, and when one end of the retaining piece (231) is in the second stop position, the manual operation unit (220) is allowed to be manually operated to generate the manual driving force.

5. The energy storage device according to claim 4, characterized in that , the retaining piece bracket (232) is provided with a guiding portion (213), and the other end of the retaining piece (231) is fixed to the retaining piece bracket (232). Wherein, one end of the retaining piece (231) moves between the first stop position and the second stop position under the guidance of the guiding portion (213).

6. The energy storage device according to claim 4, characterized in that, As one end of the retaining piece (231) moves from the second stop position to the first stop position, one end of the retaining piece (231) drives the operating rod (242) to move from the second operating position to the first operating position, and when one end of the retaining piece (231) is in the first stop position, the manual operation unit (220) is blocked from being manually operated.

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