Dual-motor operation module, fusion switch and energy storage system

Abstract

The utility model relates to the technical field of energy storage equipment, and particularly discloses a dual-motor operation module, a fusion switch and an energy storage system, and the dual-motor operation module comprises an operation housing, and a main loop operation mechanism and a pre-charging loop operation mechanism which are disposed in the operation housing. A first opening and a second opening are formed in the operation shell, the first opening is provided with a first output piece linked with a main loop operation mechanism, and the second opening is provided with a second output piece linked with a pre-charging loop operation mechanism; and the main loop operating mechanism and the pre-charging loop operating mechanism can respectively drive the fusion switch to be switched on and switched off through the corresponding first output piece and the second output piece. The reliability of the fusion switch can be effectively improved through the main loop operation mechanism and the pre-charging loop operation mechanism, and stable control over the energy storage system is achieved.

Description

Technical Field

[0001] This application relates to the technical field of energy storage devices, and more particularly, to a dual-motor operation module, a fusion switch, and an energy storage system. Background Art

[0002] Generally, a fusion switch is usually used to control the on-off of a circuit in an energy storage system such as a battery cabinet and a power generation side. The fusion switch provided by the prior art only has a single-motor operating mechanism, and there is no other backup protection for the entire energy storage system. Due to problems such as the service life of the single motor, once a mechanical structure fails, the fusion switch cannot realize remote control of opening and closing. Therefore, the fusion switch provided by the prior art has poor reliability in remote opening and closing control of the energy storage system, and is likely to cause system failures. Summary of the Utility Model

[0003] The purpose of this application is to provide a dual-motor operation module, a fusion switch, and an energy storage system, which can effectively improve the reliability of the fusion switch and realize stable control of the energy storage system by setting a main circuit operating mechanism and a pre-charge circuit operating mechanism.

[0004] The embodiments of this application are implemented as follows:

[0005] In a first aspect, an embodiment of this application provides a dual-motor operation module configured on a fusion switch. The dual-motor operation module includes an operation housing and a main circuit operating mechanism and a pre-charge circuit operating mechanism arranged in the operation housing. The operation housing is provided with a first opening and a second opening. The first opening is provided with a first output member linked to the main circuit operating mechanism, and the second opening is provided with a second output member linked to the pre-charge circuit operating mechanism. The main circuit operating mechanism drives the main circuit switch unit of the fusion switch to open and close through the first output member. The pre-charge circuit operating mechanism can drive the pre-charge switch unit of the fusion switch to open and close through the second output member.

[0006] As an optional implementation, the main circuit operating mechanism includes a first motor, an input rotating shaft, and a transmission component. The first output member is an output rotating shaft installed on the first opening and connected to the input rotating shaft. The first motor drives the input rotating shaft to rotate through the transmission component, so that the output rotating shaft rotates to generate a force for driving the main circuit switch unit of the fusion switch to open and close.

[0007] As an alternative embodiment, eccentric connection parts are provided on both of the two surfaces of the input rotating shaft and the output rotating shaft that are close to each other; a main circuit energy storage assembly is further included, and the main circuit energy storage assembly includes a first elastic member and a linkage swing arm; the first end of the linkage swing arm is connected to a provided sliding guide assembly, and the second end is hinged to the eccentric connection part; the moving direction of the first end on the sliding guide assembly is perpendicular to the rotation axis; when the input rotating shaft is driven to rotate so that the extending direction of the linkage swing arm is perpendicular to and intersects the rotation axis, the first elastic member is compressed to generate an elastic force for driving the output rotating shaft to rotate to the closing position or the opening position.

[0008] As an alternative embodiment, a baffle with a sliding socket is provided inside the operation housing, the second end has an abutting surface, the first elastic member is sleeved on the linkage swing arm, and one end abuts against the abutting surface and the other end abuts against the baffle; when the second end approaches the baffle, the first elastic member is compressed, and the first end is inserted into the sliding socket and moves in a direction away from the rotation axis.

[0009] As an alternative embodiment, the transmission assembly is a gear transmission assembly, and a sector gear is provided on the input rotating shaft; when the sector gear meshes and rotates with the gear transmission assembly, the first elastic member can be compressed for energy storage, or the first elastic member can be elongated to release elastic potential energy.

[0010] As an alternative embodiment, there are at least two linkage swing arms that are rotationally symmetric about the rotation axis.

[0011] As an alternative embodiment, the pre-charge circuit operating mechanism includes a second motor and a transmission gear meshing with the second motor; the second output member is a transmission connecting rod passing through the second opening, one end of the transmission connecting rod is inserted into an eccentric connection hole provided on the transmission gear, and the other end is connected to a pre-charge energy storage assembly connected to the pre-charge switch unit of the fusion switch, and the second motor can generate a force for driving the pre-charge switch unit to close and open through the transmission connecting rod.

[0012] As an alternative embodiment, the pre-charge energy storage assembly includes a rotating connecting member and a second elastic member provided in the pre-charge switch unit; one end of the rotating connecting member is provided with a guiding groove, and the other end has a hanging portion connected to the second elastic member; the end of the transmission connecting rod is inserted into the guiding groove, and the second motor can drive the transmission connecting rod to abut against the end of the guiding groove to push the rotating connecting member to rotate and compress the second elastic member for energy storage.

[0013] As an alternative embodiment, pre-charge limiting parts are provided on both sides of the rotating connecting member.

[0014] In a second aspect, an embodiment of the present application provides a combined switch, which includes a main circuit switch unit, a pre-charge switch unit, and the above-mentioned dual-motor operation module; the main circuit operating mechanism can generate a force for driving the main circuit switch unit to switch on and off through a first output member; the pre-charge circuit operating mechanism can generate a force for driving the pre-charge switch unit to switch on and off through a second output member.

[0015] In a third aspect, an embodiment of the present application provides an energy storage system, which includes a battery energy storage module and the above-mentioned combined switch; the combined switch controls the on-off of the circuit of the battery energy storage module through the dual-motor operation module.

[0016] The beneficial effects of the embodiments of the present application include:

[0017] The dual-motor operation module provided in the embodiment of the present application is configured on the combined switch. The dual-motor operation module includes an operation housing and a main circuit operating mechanism and a pre-charge circuit operating mechanism arranged in the operation housing; a first opening and a second opening are formed on the operation housing of the embodiment of the present application. A first output member linked to the main circuit operating mechanism is provided at the first opening, and a second output member linked to the pre-charge circuit operating mechanism is provided at the second opening; the main circuit operating mechanism and the pre-charge circuit operating mechanism in the embodiment of the present application can drive the combined switch to switch on and off through the corresponding first output member and second output member respectively. In the embodiment of the present application, the pre-charge switch unit and the main circuit switch unit in the combined switch can be respectively controlled to switch on and off through the main circuit operating mechanism and the pre-charge circuit operating mechanism, forming a dual-motor operating mechanism. Compared with the prior art, the embodiment of the present application can greatly improve the reliability of the switching-on and switching-off operations and realize the stable control of the energy storage system.

[0018] An embodiment of the present application provides a combined switch, which includes a main circuit switch unit, a pre-charge switch unit, and the above-mentioned dual-motor operation module; the main circuit operating mechanism can generate a force for driving the main circuit switch unit to switch on and off through a first output member; the pre-charge circuit operating mechanism can generate a force for driving the pre-charge switch unit to switch on and off through a second output member. The combined switch provided in the embodiment of the present application has a dual-motor operation module, which can realize reliable switching-on and switching-off control of the main circuit switch unit and the pre-charge switch unit, and is beneficial to realizing the stable control of the energy storage system.

[0019] An embodiment of the present application provides an energy storage system, which includes a battery energy storage module and the above-mentioned combined switch; the combined switch controls the on-off of the circuit of the battery energy storage module through the dual-motor operation module. The energy storage system of the embodiment of the present application adopts the above-mentioned combined switch. Compared with the prior art, the energy storage system provided in the embodiment of the present application has a low failure rate and is convenient for realizing the reliable operation of the equipment. Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0021] Figure 1 Structural schematic diagram of the fusion switch for the embodiment of the present application;

[0022] Figure 2 One of the structural schematic diagrams of the dual-motor operation module for the embodiment of the present application;

[0023] Figure 3 Another structural schematic diagram of the dual-motor operation module for the embodiment of the present application;

[0024] Figure 4 Still another structural schematic diagram of the dual-motor operation module for the embodiment of the present application;

[0025] Figure 5 Yet another structural schematic diagram of the dual-motor operation module for the embodiment of the present application;

[0026] Figure 6 Another structural schematic diagram of the dual-motor operation module for the embodiment of the present application;

[0027] Figure 7 One more structural schematic diagram of the dual-motor operation module for the embodiment of the present application.

[0028] Icon: 100 - operation housing; 101 - main circuit operation mechanism; 102 - pre-charge circuit operation mechanism; 103 - first opening; 104 - second opening; 105 - first output member; 106 - second output member; 107 - first motor; 108 - input rotating shaft; 109 - transmission assembly; 110 - output rotating shaft; 112 - main circuit energy storage assembly; 113 - linkage swing arm; 114 - first end; 115 - sliding guide assembly; 116 - second end; 117 - eccentric connection part; 118 - sliding socket; 119 - baffle; 120 - abutting surface; 121 - sector gear; 122 - second motor; 123 - transmission gear; 124 - transmission connecting rod; 125 - eccentric connection hole; 126 - pre-charge energy storage assembly; 127 - rotating connection member; 128 - second elastic member; 129 - guide groove; 130 - hanging part; 131 - pre-charge limit part; 132 - fusion switch; 133 - main circuit switch unit; 134 - pre-charge switch unit; 135 - first elastic member. Detailed implementation manners

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Components of the embodiments of this application generally described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.

[0031] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0032] In the description of this application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] Generally, in energy storage systems such as battery cabinets and the power generation side, a fusion switch 132 is usually used to control the on / off of the circuit. The existing fusion switch 132 only has a single-motor operating mechanism, and there is no other backup protection for the entire energy storage system. Due to problems such as the service life of the single motor, once a mechanical structure fails, the fusion switch 132 cannot achieve the control of opening and closing. Therefore, the reliability of the on / off control of the fusion switch 132 provided by the existing technology for the energy storage system is poor, and it is easy to cause system failures.

[0034] To solve the above technical problems, the embodiments of this application provide a dual-motor operating module, a fusion switch 132, and an energy storage system.

[0035] Refer to Figure 1 、 Figure 2 and Figure 3As shown in the figure, an embodiment of the present application provides a dual-motor operation module configured on a fusion switch 132. The dual-motor operation module includes an operation housing 100, a main circuit operation mechanism 101 and a pre-charge circuit operation mechanism 102 disposed within the operation housing 100. The operation housing 100 is provided with a first opening 103 and a second opening 104. A first output member 105 linked to the main circuit operation mechanism 101 is provided at the first opening 103, and a second output member 106 linked to the pre-charge circuit operation mechanism 102 is provided at the second opening 104. The main circuit operation mechanism 101 and the pre-charge circuit operation mechanism 102 can drive the fusion switch 132 to open and close through the corresponding first output member 105 and second output member 106 respectively.

[0036] It should be noted that the main circuit operation mechanism 101 and the pre-charge circuit operation mechanism 102 of the embodiment of the present application are installed close to each other inside the operation housing 100, and their structures are compact, so that the dual-motor operation module has a small installation volume, which is beneficial to reducing the overall volume of the fusion switch 132.

[0037] The dual-motor operation module provided by the embodiment of the present application is configured on the fusion switch 132. The dual-motor operation module includes an operation housing 100, a main circuit operation mechanism 101 and a pre-charge circuit operation mechanism 102 disposed within the operation housing 100. The operation housing 100 of the embodiment of the present application is provided with a first opening 103 and a second opening 104. A first output member 105 linked to the main circuit operation mechanism 101 is provided at the first opening 103, and a second output member 106 linked to the pre-charge circuit operation mechanism 102 is provided at the second opening 104. The main circuit operation mechanism 101 and the pre-charge circuit operation mechanism 102 of the embodiment of the present application can drive the fusion switch 132 to open and close through the corresponding first output member 105 and second output member 106 respectively. Through the main circuit operation mechanism 101 and the pre-charge circuit operation mechanism 102, the embodiment of the present application can respectively realize the opening and closing control of the pre-charge switch unit 134 and the main circuit switch unit 133 in the fusion switch 132, forming a dual-motor operation mechanism. Compared with the prior art, the embodiment of the present application can greatly improve the reliability of the opening and closing operation and realize the stable control of the energy storage system.

[0038] Refer to Figure 3 、 Figure 4 and Figure 5 As shown in the figure, as an optional implementation manner, the main circuit operation mechanism 101 includes a first motor 107, an input rotating shaft 108 and a transmission assembly 109. The first output member 105 is an output rotating shaft 110 installed on the first opening 103 and connected to the input rotating shaft 108. The first motor 107 drives the input rotating shaft 108 to rotate through the transmission assembly 109, so that the output rotating shaft 110 rotates to generate a force for driving the main circuit switch unit 133 of the fusion switch 132 to open and close.

[0039] Further, the main circuit operating mechanism 101 of the embodiment of the present application includes a first motor 107, an input rotating shaft 108, and a transmission assembly 109. The first motor 107 can drive the input rotating shaft 108 to rotate through the transmission assembly 109. Therefore, the input rotating shaft 108 can drive the output rotating shaft 110 to move. The output rotating shaft 110 is then connected to the main circuit switch unit 133 to realize the electric remote control of opening and closing.

[0040] Further, referring to Figure 5 As shown, eccentric connection parts 117 are provided on both surfaces of the input rotating shaft 108 and the output rotating shaft 110 that are close to each other, and the rotation axes of the input rotating shaft 108 and the output rotating shaft 110 coincide; a main circuit energy storage assembly 112 is further included. The main circuit energy storage assembly 112 includes a first elastic member and a linkage swing arm 113; the first end 114 of the linkage swing arm 113 is connected to the provided sliding guide assembly 115, and the second end 116 is hinged to the eccentric connection part 117; the moving direction of the first end 114 on the sliding guide assembly 115 is perpendicular to the rotation axis; when the input rotating shaft 108 is driven to rotate and the extending direction of the linkage swing arm 113 is perpendicular to and intersects the rotation axis, the first elastic member 135 is compressed to generate an elastic force for driving the output rotating shaft 110 to rotate to the closing position or the opening position.

[0041] It should be noted that the input rotating shaft 108 can drive the output rotating shaft 110 to rotate. Since the second end 116 of the linkage swing arm 113 is connected to the eccentric connection part 117, the second end 116 can be driven to swing, and the first end 114 can be driven to move on the sliding guide assembly 115, and the first elastic member 135 can be compressed for energy storage.

[0042] It should be noted that the specific structure of the transmission assembly 109 can be set by those skilled in the art according to needs, and no special limitation is made thereto.

[0043] Exemplarily, referring to Figure 4 、 Figure 5 As shown, the transmission assembly 109 is a gear transmission assembly 109, and a sector gear 121 is provided on the input rotating shaft 108; when the sector gear 121 meshes and rotates with the gear transmission assembly 109, the first elastic member 135 can be compressed for energy storage; or the first elastic member 135 can extend to release elastic potential energy.

[0044] Among them, the first motor 107 drives the sector gear 121 to rotate through the transmission assembly 109. When the sector gear 121 rotates clockwise by a preset angle, it can drive the first elastic member 135 to store and release energy once. Then, when it rotates counterclockwise by the preset angle, it can also drive the first elastic member 135 to store and release energy once. It should be noted that the size of the preset angle can be set by those skilled in the art according to needs, and no special limitation is made here. Exemplarily, the preset angle of rotation of the sector gear 121 can be 90°.

[0045] Among them, the specific structure of the sliding guide assembly 115 can be set by those skilled in the art according to needs, and the purpose is to realize the linear displacement of the first end 114.

[0046] Exemplarily, referring to Figure 5 、 Figure 7 As shown, a baffle 119 with a sliding socket 118 is arranged in the operation housing 100. The second end 116 has an abutting surface 120. The first elastic member 135 is sleeved on the linkage swing arm 113, and one end abuts against the abutting surface 120 and the other end abuts against the baffle 119. When the second end 116 approaches the baffle 119, the first elastic member 135 is compressed, and the first end 114 is inserted into the sliding socket 118 and moves in a direction away from the rotation axis.

[0047] It should be noted that the elastic force generated by the compression of the first elastic member 135 drives the output rotating shaft 110 to rotate to the closing position or the opening position. That is to say, when the main circuit energy storage assembly 112 is in the natural state, the position of the output rotating shaft 110 can be maintained at the closing position or the opening position.

[0048] When the first motor 107 drives the eccentric connecting portion 117 to rotate, it can drive the first elastic member 135 to reach the maximum compression distance, so that the output rotating shaft 110 passes through the dead point to realize the switching between closing and opening.

[0049] As an optional implementation manner, there are at least two linkage swing arms 113 that are rotationally symmetric about the rotation axis.

[0050] Preferably, referring to Figure 7 As shown, there are two linkage swing arms 113 that are rotationally symmetric about the rotation axis, and a first elastic member 135 is sleeved on each linkage swing arm 113.

[0051] Referring to Figure 5 、 Figure 6As shown, as an alternative embodiment, the precharge circuit operating mechanism 102 includes a second motor 122 and a transmission gear 123 meshing with the second motor 122; the second output member 106 is a transmission link 124 inserted through the second opening 104. One end of the transmission link 124 is inserted into an eccentric connection hole 125 provided on the transmission gear 123, and the other end is connected to a precharge energy storage assembly 126 connected to the precharge switch unit 134 of the fusion switch 132. The second motor 122 can cause the precharge energy storage assembly 126 to generate a force for driving the precharge switch unit 134 to switch on and off through the transmission link 124.

[0052] Among them, referring to Figure 6 As shown, the precharge energy storage assembly 126 includes a rotating connection member 127 and a second elastic member 128 provided in the precharge switch unit 134; one end of the rotating connection member 127 is provided with a guiding groove 129, and the other end has a hanging portion 130 connected to the second elastic member 128; the end of the transmission link 124 is inserted into the guiding groove 129, and the second motor 122 can drive the transmission link 124 to abut against the end of the guiding groove 129 to push the rotating connection member 127 to rotate and compress the second elastic member 128 for energy storage.

[0053] As an alternative embodiment, precharge limiting portions 131 are provided on both sides of the rotating connection member 127. The limiting control of the rotating connection member 127 can be realized through the setting of the precharge limiting portions 131.

[0054] Referring to Figure 1 As shown, an embodiment of the present application provides a fusion switch 132, which includes a main circuit switch unit 133, a precharge switch unit 134, and the above-mentioned dual-motor operation module; the main circuit operating mechanism 101 can generate a force for driving the main circuit switch unit 133 to switch on and off through the first output member 105; the precharge circuit operating mechanism 102 can generate a force for driving the precharge switch unit 134 to switch on and off through the second output member 106.

[0055] The fusion switch 132 provided by the embodiment of the present application has a dual-motor operation module, which can realize reliable switching on and off control of the main circuit switch unit 133 and the precharge switch unit 134, and is beneficial to realizing stable control of the energy storage system.

[0056] An embodiment of the present application provides an energy storage system, which includes a battery energy storage module and the above-mentioned fusion switch 132; the fusion switch 132 controls the on-off of the circuit of the battery energy storage module through the dual-motor operation module.

[0057] The energy storage system of the embodiment of the present application adopts the above-mentioned fusion switch 132. Compared with the prior art, the energy storage system provided by the embodiment of the present application has a low failure rate and is convenient for realizing reliable operation of the equipment.

[0058] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various modifications and changes can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A dual-motor operation module configured on a fusion switch (132), characterized in that, The dual-motor operation module includes an operation housing (100), a main circuit operation mechanism (101) and a pre-charge circuit operation mechanism (102) arranged in the operation housing (100); a first opening (103) and a second opening (104) are formed in the operation housing (100), a first output member (105) linked with the main circuit operation mechanism (101) is provided at the first opening (103), and a second output member (106) linked with the pre-charge circuit operation mechanism (102) is provided at the second opening (104); the main circuit operation mechanism (101) drives the main circuit switch unit (133) of the fusion switch (132) to close and open through the first output member (105); the pre-charge circuit operation mechanism (102) can drive the pre-charge switch unit (134) of the fusion switch (132) to close and open through the second output member (106).

2. The dual-motor operation module according to claim 1, wherein The main circuit operation mechanism (101) includes a first motor (107), an input rotating shaft (108) and a transmission assembly (109); the first output member (105) is an output rotating shaft (110) installed on the first opening (103) and connected with the input rotating shaft (108); the first motor (107) drives the input rotating shaft (108) to rotate through the transmission assembly (109), so that the output rotating shaft (110) rotates to generate a force for driving the main circuit switch unit (133) of the fusion switch (132) to close and open.

3. The dual-motor operation module according to claim 2, wherein Eccentric connection parts (117) are arranged on the surfaces of the input rotating shaft (108) and the output rotating shaft (110) close to each other; a main circuit energy storage assembly (112) is further included, and the main circuit energy storage assembly (112) includes a first elastic member (135) and a linkage swing arm (113); a first end (114) of the linkage swing arm (113) is connected with a provided sliding guide assembly (115), and a second end (116) is hinged with the eccentric connection part (117); the moving direction of the first end (114) on the sliding guide assembly (115) is perpendicular to the rotation axis; when the input rotating shaft (108) is driven to rotate and the extending direction of the linkage swing arm (113) is perpendicular to and intersects with the rotation axis, the first elastic member (135) is compressed to generate an elastic force for driving the output rotating shaft (110) to rotate to the closing position or the opening position.

4. The dual-motor operation module according to claim 3, characterized in that, A baffle (119) with a sliding socket (118) is arranged in the operation housing (100), the second end (116) has an abutting surface (120), the first elastic member (135) is sleeved on the linkage swing arm (113), and one end abuts against the abutting surface (120) and the other end abuts against the baffle (119); when the second end (116) approaches the baffle (119), the first elastic member (135) is compressed, and the first end (114) is inserted into the sliding socket (118) and moves in a direction away from the rotation axis.

5. The dual-motor operation module according to claim 3, wherein The transmission component (109) is a gear transmission component (109), and a sector gear (121) is provided on the input rotating shaft (108); the sector gear (121) meshes and rotates with the gear transmission component (109), so that the first elastic member (135) can be compressed to store energy or release potential energy.

6. The dual-motor operation module according to any one of claims 1-5, characterized in that, The precharge circuit operating mechanism (102) includes a second motor (122) and a transmission gear (123) meshing with the second motor (122); the second output member (106) is a transmission connecting rod (124) passing through the second opening (104). One end of the transmission connecting rod (124) is inserted into an eccentric connection hole (125) provided on the transmission gear (123), and the other end is connected to a precharge energy storage component (126) connected to the precharge switch unit (134) of the fusion switch (132). The second motor (122) can generate a force for driving the precharge switch unit (134) to switch on and off through the transmission connecting rod (124).

7. The dual-motor operation module according to claim 6, wherein, The precharge energy storage component (126) includes a rotating connecting member (127) provided in the precharge switch unit (134) and a second elastic member (128); one end of the rotating connecting member (127) is provided with a guiding groove (129), and the other end has a hanging portion (130) connected to the second elastic member (128); the end of the transmission connecting rod (124) is inserted into the guiding groove (129), and the second motor (122) can drive the transmission connecting rod (124) to abut against the end of the guiding groove (129) to push the rotating connecting member (127) to rotate and compress the second elastic member (128) to store energy.

8. The dual-motor operation module according to claim 7, wherein, Precharge limiting portions (131) are provided on both sides of the rotating connecting member (127).

9. A fusion switch (132), characterized in that, It includes a main circuit switch unit (133), a precharge switch unit (134), and the dual-motor operation module according to any one of claims 1-8; the main circuit operating mechanism (101) can generate a force for driving the main circuit switch unit (133) to switch on and off through the first output member (105); the precharge circuit operating mechanism (102) can generate a force for driving the precharge switch unit (134) to switch on and off through the second output member (106).

10. An energy storage system, characterized in that, It includes a battery energy storage module and the fusion switch (132) according to claim 9; the fusion switch (132) controls the on-off of the circuit of the battery energy storage module through the dual-motor operation module.

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