Change-over switch and energy storage system

Abstract

The utility model provides a change-over switch and an energy storage system, and relates to the technical field of low-voltage electrical appliances, the change-over switch comprises a moving contact, a first static contact and a second static contact, the first static contact and the second static contact are arranged at an interval, the moving contact is driven to rotate to be in contact with the first static contact and the second static contact respectively, and the moving contact is further connected with a locking assembly and an energy storage assembly. The locking assembly is used for locking the contact state of the moving contact and the first static contact, when the moving contact makes contact with the first static contact, the energy storage assembly is compressed or stretched to enable the energy storage assembly to store energy, and when the locking assembly is driven to be unlocked, the energy storage assembly releases energy to push the moving contact to rotate to make contact with the second static contact. The change-over switch provided by the utility model solves the problem that the change-over switch in the prior art is slow in switching speed.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to a conversion switch and an energy storage system. Background Art

[0002] A transfer switch is an electrical control device that can convert one input signal into multiple output signals. A transfer switch allows the user to switch between multiple circuits to achieve the conversion of power, signal or control paths. This switch is widely used in various electrical systems, including but not limited to home, industrial, commercial and automation control systems.

[0003] When the transfer switch is used in an energy storage system, it is used to switch between two power sources or two loads in a timely manner. In the prior art, during the switching process of the two circuits, the transfer switch usually uses a driving mechanism such as a motor to drive the moving contact to achieve the switching of the two circuits. In this way, due to the rotation speed of the motor and the transmission process, the switching speed is slow. Utility Model Content

[0004] The purpose of the present application is to provide a transfer switch to address the deficiencies in the prior art, so as to solve the problem of slow switching speed of the transfer switch in the prior art.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0006] According to one aspect of an embodiment of the present application, a switching switch is provided, comprising a moving contact and a first stationary contact and a second stationary contact arranged at an interval, wherein the moving contact is driven to rotate and respectively contact the first stationary contact and the second stationary contact, and the moving contact is also connected with a locking assembly and an energy storage assembly, wherein the locking assembly is used to lock the contact state between the moving contact and the first stationary contact, and when the moving contact contacts the first stationary contact, the energy storage assembly is compressed so that the energy storage assembly stores energy, and when the locking assembly is driven to unlock, the energy storage assembly releases energy to drive the moving contact to rotate and contact the second stationary contact.

[0007] As an implementable manner, the conversion switch has a first state and a second state, the first state is a state in which the moving contact is in contact with the first stationary contact, and the second state is a state in which the moving contact is in contact with the second stationary contact.

[0008] As an implementable method, the switching switch also includes a bracket, and the energy storage component is arranged between the moving contact and the bracket. When the moving contact moves in a direction close to the first static contact, the energy storage component stores energy until the moving contact contacts the first static contact, and the energy storage component completes energy storage.

[0009] As an implementable manner, when the moving contact moves in a direction away from the first stationary contact, the energy storage assembly releases energy until the moving contact contacts the second stationary contact.

[0010] As an implementable method, the switching switch also includes a bracket, and the locking assembly includes a locking member arranged on the bracket and a snap-fit ​​member arranged on the moving contact, the locking member is rotatably connected to the bracket, the end of the locking member is close to the snap-fit ​​member and is locked with the snap-fit ​​member, and the locking member is released when it is away from the snap-fit ​​member.

[0011] As an practicable manner, the locking component includes a lock buckle, a rotating shaft is arranged on the bracket, and one end of the lock buckle is rotatably connected to the rotating shaft so that the other end of the lock buckle is close to or away from the buckling component.

[0012] As an practicable manner, the lock buckle is driven to rotate and move in a direction away from the fastening member to release the lock between the locking member and the fastening member.

[0013] As an implementable manner, when the conversion switch is in the second state, the moving contact is driven to move toward the first stationary contact until the moving contact contacts the first stationary contact, and then the locking assembly is locked.

[0014] As an implementable manner, the energy storage component is an elastic member, and two ends of the elastic member are respectively connected to the bracket and the moving contact.

[0015] Another aspect of an embodiment of the present application provides an energy storage system, including a battery energy storage module and the above-mentioned conversion switch, wherein the conversion switch is used to control the on-off of the circuit of the battery energy storage module.

[0016] The beneficial effects of this application include:

[0017] The present application provides a conversion switch, comprising a moving contact and a first stationary contact and a second stationary contact arranged at intervals. The moving contact is driven to rotate and contact the first stationary contact and the second stationary contact respectively. The first circuit is connected when the moving contact contacts the first stationary contact, and the second circuit is connected when the moving contact contacts the second stationary contact. The moving contact is also connected with a locking component and an energy storage component. The locking component is used to lock the contact state of the moving contact and the first stationary contact, so that the first circuit is stably connected; when the moving contact contacts the first stationary contact, the energy storage component is compressed so that the energy storage component stores energy. When a fault occurs in the first circuit, the locking component is driven to unlock, and the locking of the moving contact is released, so that the moving contact is tripped. At this time, the energy storage component releases energy, drives the moving contact to rotate and separate from the first stationary contact, and then contacts with the second stationary contact, so that the second circuit is quickly connected. The locking assembly and energy storage assembly of the embodiment of the present application enable the moving contact to directly contact the second static contact after being tripped, thereby realizing automatic switching of the circuit and improving the switching speed from the first circuit to the second circuit, thereby solving the problem of slow switching speed of the conversion switch in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 One of the state schematic diagrams of a conversion switch provided in an embodiment of the present application;

[0020] Figure 2 A second state diagram of a conversion switch provided in an embodiment of the present application;

[0021] Figure 3 A third state diagram of a conversion switch provided in an embodiment of the present application;

[0022] Figure 4 A fourth state diagram of a conversion switch provided in an embodiment of the present application;

[0023] Figure 5 A fifth state diagram of a conversion switch provided in an embodiment of the present application;

[0024] Figure 6 This is a sixth state diagram of a conversion switch provided in an embodiment of the present application.

[0025] Icon: 100 - transfer switch; 110 - moving contact; 120 - first static contact; 130 - second static contact; 140 - locking assembly; 141 - locking piece; 142 - buckle piece; 143 - lock; 144 - rotating shaft; 150 - energy storage assembly; 160 - third static busbar. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. It should be noted that, in the absence of conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the scope of protection of the present application.

[0028] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In one aspect of the embodiment of the present application, Figure 1 As shown, a conversion switch 100 is provided, including a moving contact 110 and a first stationary contact 120 and a second stationary contact 130 arranged at intervals. The moving contact 110 is driven to rotate and contact the first stationary contact 120 and the second stationary contact 130 respectively. The moving contact 110 is also connected with a locking assembly 140 and an energy storage assembly 150. The locking assembly 140 is used to lock the contact state of the moving contact 110 and the first stationary contact 120. When the moving contact 110 contacts the first stationary contact 120, the energy storage assembly 150 is compressed so that the energy storage assembly 150 stores energy. When the locking assembly 140 is driven to unlock, the energy storage assembly 150 releases energy to push the moving contact 110 to rotate and contact the second stationary contact 130.

[0031] The transfer switch 100 provided in the embodiment of the present application is applied to an energy storage system and is used to connect the first circuit or the second circuit in the energy storage system. Specifically, the transfer switch 100 includes a moving contact 110, a first static contact 120 and a second static contact 130, wherein the first static contact 120, the moving contact 110 and the third static bus 160 serve as the first circuit; the second static contact 130, the moving contact 110 and the third static bus 160 serve as the second circuit. The first circuit serves as the main circuit. When the first circuit fails, the locking assembly 140 in the transfer switch 100 releases the locking so that the moving contact 110 rotates to connect the second circuit.

[0032] Specifically, the transfer switch 100 of the embodiment of the present application includes a moving contact 110, a first stationary contact 120 and a second stationary contact 130, wherein the first stationary contact 120 and the second stationary contact 130 are arranged at intervals, the moving contact 110 is driven to rotate and contacts the first stationary contact 120, and the other end of the moving contact 110 contacts the third stationary bus 160. When one end of the moving contact 110 contacts the first stationary contact 120 and the other end contacts the third stationary bus 160, as shown in FIG. Figure 1 As shown, the first circuit is connected; the moving contact 110 is also connected to a locking assembly 140 and an energy storage assembly 150, and the locking assembly 140 locks the moving contact 110 in contact with the first stationary contact 120. At the same time, the moving contact 110 compresses the energy storage assembly 150 so that the energy storage assembly 150 stores energy. When the first circuit fails, the locking assembly 140 rotates to unlock, as shown in FIG. Figure 2 As shown, the locking of the moving contact 110 is released to realize the tripping of the moving contact 110. At this time, as shown in FIG. Figure 3 As shown, the energy storage assembly 150 releases energy, pushing the moving contact 110 to rotate and directly contact the second static contact 130, thereby connecting the second circuit. Figure 4 As shown. The locking assembly 140 and the energy storage assembly 150 of the embodiment of the present application enable the moving contact 110 to be released and contact the second static contact 130, thereby realizing the automatic conversion of the circuit and the switching speed from the first circuit to the second circuit. Therefore, the conversion switch 100 of the embodiment of the present application can solve the problem of the slow switching speed of the conversion switch 100 in the prior art. Secondly, during the conversion process from the first circuit to the second circuit, no additional driving mechanism is required to drive the moving contact 110 to realize the conversion. The locking assembly 140 only needs to rotate to release the lock on the moving contact 110, and the energy storage assembly 150 can release energy to automatically realize the switching from the first circuit to the second circuit, and the structure is simple.

[0033] Among them, the specific structures of the locking assembly 140 and the energy storage assembly 150 in the embodiment of the present application are not limited, and technical personnel in this field can set them according to actual conditions. Among them, the locking assembly 140 only needs to be able to achieve the locking and unlocking of the first static contact 120 and the moving contact 110; the energy storage assembly 150 only needs to be able to store energy when compressed by the moving contact 110 and release energy when the moving contact 110 releases compression.

[0034] The present application provides a transfer switch 100, including a moving contact 110 and a first stationary contact 120 and a second stationary contact 130 arranged at intervals. The moving contact 110 is driven to rotate and contact the first stationary contact 120 and the second stationary contact 130 respectively. When the moving contact 110 contacts the first stationary contact 120, a first circuit is connected. When the moving contact 110 contacts the second stationary contact 130, a second circuit is connected. The moving contact 110 is also connected to a locking assembly 140 and an energy storage assembly 150. The locking assembly 140 is used to lock the contact state of the moving contact 110 and the first stationary contact 120. , so that the first circuit is stably connected; when the moving contact 110 contacts the first static contact 120, the energy storage component 150 is compressed so that the energy storage component 150 stores energy. At the same time, the locking component 140 can also make the energy storage component 150 always in the energy storage state when the first circuit is connected. When the first circuit fails, only the locking component 140 is driven to unlock, release the lock on the moving contact 110, and realize the tripping of the moving contact 110. At this time, the energy storage component 150 releases energy and pushes the moving contact 110 to rotate and contact the second static contact 130, so that the second circuit can be connected. The locking component 140 and the energy storage component 150 of the embodiment of the present application make the moving contact 110 trip and contact the second static contact 130, realize the automatic conversion of the circuit, and improve the switching speed from the first circuit to the second circuit, thereby solving the problem of slow switching speed of the conversion switch in the prior art.

[0035] Optional, such as Figure 1 and Figure 4 As shown, the conversion switch 100 has a first state and a second state. The first state is a state in which the moving contact 110 is in contact with the first stationary contact 120 , and the second state is a state in which the moving contact 110 is in contact with the second stationary contact 130 .

[0036] In the embodiment of the present application, the conversion switch 100 is set to have two states, which are used to connect the first circuit or the second circuit. When the third static bus 160 is connected to a load, the first circuit or the second circuit supplies power to the load to avoid power failure of the load. When the third static bus 160 is connected to a power supply device, the power supply device can continue to supply power.

[0037] In one possible implementation of the embodiment of the present application, Figure 1 As shown, the switching switch 100 also includes a bracket, and the locking assembly 140 includes a locking member 141 arranged on the bracket and a snap-fit ​​member 142 arranged on the moving contact 110. The locking member 141 is rotatably connected to the bracket, and the end of the locking member 141 is close to the snap-fit ​​member 142 and is locked with the snap-fit ​​member 142. The locking member 141 is released when it is away from the snap-fit ​​member 142.

[0038] Specifically, the locking assembly 140 includes a locking member 141 and a snap-fit ​​member 142. The locking member 141 is arranged on a bracket and is rotatably connected to the bracket. The snap-fit ​​member 142 is arranged on the moving contact 110. When the moving contact 110 contacts the first static contact 120, the snap-fit ​​is located near the locking member 141. The locking member 141 moves toward the snap-fit ​​member 142 and snaps with the snap-fit ​​member 142 to achieve locking of the first circuit-on state. When the locking member 141 is locked, the movement of the moving contact 110 is limited, so that the moving contact 110 is in stable contact with the first static contact 120.

[0039] When the first circuit fails, an external force is used to rotate the locking member 141, such as Figure 2-Figure 4 As shown, the locking of the locking member 141 and the snap-fitting member 142 is released, and the restriction on the moving contact 110 is released. At this time, the moving contact 110 rotates under the action of the energy storage assembly 150, separates from the first static contact 120, and then contacts the second static contact 130, thereby realizing the connection of the second circuit.

[0040] The locking assembly 140 is configured as a locking member 141 that rotates with the bracket and a buckle member 142 that is fixed on the moving contact 110 , which can simplify the structure of the locking structure and facilitate operation.

[0041] In practical applications, the transfer switch 100 generally includes a housing, and the bracket may be a part of the housing or may be fixed to the housing.

[0042] Optionally, the locking component 141 includes a lock buckle 143 , and a rotating shaft 144 is disposed on the bracket. One end of the lock buckle 143 is rotatably connected to the rotating shaft 144 so that the other end of the lock buckle 143 is close to or away from the buckling component 142 .

[0043] As can be seen from the above, the locking member 141 is rotatably connected to the bracket, and during the rotation process, it approaches or moves away from the buckle 142 to achieve locking or unlocking with the buckle 142. In order to facilitate the rotation and locking of the locking member 141, the locking member 141 is provided with a lock buckle 143 and a rotating shaft 144, the rotating shaft 144 is rotatably connected to the bracket, and the rotating shaft 144 is connected to the lock buckle 143 so that the lock buckle 143 can rotate, and the locking portion of the lock buckle 143 at one end away from the rotating shaft 144 is locked or contact-locked with the buckle 142.

[0044] The specific structure of the lock 143 and the fastening member 142 is not limited in the present application embodiment, and those skilled in the art can configure it according to actual conditions. For example, Figure 1As shown, the lock 143 has a transverse blocking portion, and a protrusion extends from the end of the locking member 142. When the protrusion is located below the blocking portion and has an overlapping portion with the projection of the blocking portion in the vertical direction, the blocking portion blocks the upward movement of the protrusion, thereby limiting the movement of the locking member 142. Since the locking member 142 is connected to the moving contact 110, the movement of the moving contact 110 is limited.

[0045] In one achievable manner of the embodiment of the present application, the lock buckle 143 is driven to rotate and move in a direction away from the fastening member 142 to release the lock between the locking member 141 and the fastening member 142 .

[0046] When the first circuit fails, the lock buckle 143 is driven to rotate, so that the lock buckle 143 is away from the fastening member 142, and the locking of the locking member 141 and the fastening member 142 is released, thereby achieving unlocking.

[0047] The specific driving method is not limited in the embodiment of the present application. A driving member may be provided on the housing of the transfer switch 100, or a driving port may be provided on the housing so that a tool can be inserted into the housing for driving. Those skilled in the art may make specific settings according to actual conditions.

[0048] Optionally, when the transfer switch 100 is in the second state, the moving contact 110 is driven to move toward the first stationary contact 120 until the moving contact 110 contacts the first stationary contact 120 , and then the locking assembly 140 is locked.

[0049] As can be seen from the above, the first circuit is the main circuit. When the fault in the first circuit is eliminated, the second circuit needs to be switched back to the first circuit. Figure 5 and Figure 6 As shown, the moving contact 110 is driven to rotate counterclockwise, so that the moving contact 110 contacts the first stationary contact 120, the first circuit is connected, and the second circuit is switched to the first circuit. Specifically, the moving contact 110 is driven to move toward the first stationary contact 120, and after contacting the first stationary contact 120, the first circuit is connected, and the locking assembly 140 is locked. The specific driving method is not limited in the embodiment of the present application, and can be exemplified as follows: Figure 5 As shown, external force is used for driving; it can also be as Figure 6 As shown, external torque is used for driving.

[0050] Specifically, the transfer switch 100 further includes a housing, on which a handle may be provided, the handle being connected to the moving contact 110, and the handle being pressed so that the handle pushes the moving contact 110 to rotate counterclockwise. A driving hole may also be provided on the housing, and a tool may be inserted into the housing through the driving hole to drive the moving contact 110.

[0051] In one implementable manner of the embodiment of the present application, the switching switch 100 also includes a bracket, and the energy storage assembly 150 is arranged between the moving contact 110 and the bracket. When the moving contact 110 moves toward a direction close to the bracket, the energy storage assembly 150 stores energy until the moving contact 110 contacts the first static contact 120, and the energy storage assembly 150 completes energy storage.

[0052] During the switching process from the second circuit to the first circuit, the moving contact 110 is driven to move, and the moving contact 110 applies pressure to the energy storage component 150 to store energy. When the first circuit is connected, that is, after the moving contact 110 contacts the first static contact 120, the locking component 140 locks the position of the moving contact 110, so that the position of the moving contact 110 is fixed. At this time, the energy stored in the energy storage component 150 is the largest, and the energy storage is completed. In addition, by locking the moving contact 110 by the locking component 140, the energy storage component 150 is always in the energy storage state when the first circuit is connected.

[0053] Optionally, when the moving contact 110 moves in a direction away from the bracket, the energy storage assembly 150 releases energy until the moving contact 110 contacts the second stationary contact 130 , and the energy storage assembly 150 completes the energy release.

[0054] In contrast to the energy storage of the energy storage component 150, when the first circuit fails, the locking component 140 is unlocked, and the restriction on the moving contact 110 is lost. When the moving contact 110 is free, the energy storage component 150 releases energy and at the same time pushes the moving contact 110 to rotate and contact the second stationary contact 130. When the moving contact 110 contacts the second stationary contact 130, the energy storage component 150 has completed the energy release and is in a free state.

[0055] In one possible implementation of the embodiment of the present application, Figure 1 As shown, the energy storage assembly 150 is an elastic member, and two ends of the elastic member are respectively connected to the bracket and the moving contact 110.

[0056] The energy storage component 150 is set as an elastic member. The elastic member automatically accumulates elastic potential energy when squeezed, and automatically resets to push the moving contact 110 to move when the squeezing is released, which is convenient and quick.

[0057] The specific structure of the elastic member is not limited in the present application embodiment, and can be, for example, as follows: Figure 1 The compression spring shown may also be a torsion spring or other forms of elastic members.

[0058] When the elastic member is a compression spring, such as Figure 1As shown, the two ends of the compression spring are respectively connected to the bracket and the moving contact 110. When the moving contact 110 contacts the first static contact 120, the end of the compression spring connected to the moving contact 110 moves downward, causing the compression spring to compress and accumulate elastic potential energy. When the locking assembly 140 is unlocked, the compression spring releases the elastic potential energy, pushing the moving contact 110 to move clockwise and contact the second static contact 130.

[0059] When the elastic member is a torsion spring, the working principle is the same as that of the compression spring, which will not be described in detail. In addition, when the elastic member is a torsion spring, a fixing column of the torsion spring can be arranged on the bracket for the stability of the torsion spring.

[0060] The embodiment of the present application also discloses an energy storage system, including a battery energy storage module and the above-mentioned conversion switch 100, and the conversion switch 100 is used to control the circuit on and off of the battery energy storage module. The energy storage system includes the same structure and beneficial effects as the conversion switch 100 in the above-mentioned embodiment. The structure and beneficial effects of the conversion switch 100 have been described in detail in the above-mentioned embodiment and will not be repeated here.

[0061] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A transfer switch, characterized in that: The invention comprises a moving contact (110) and a first stationary contact (120) and a second stationary contact (130) which are arranged at intervals. The moving contact (110) is driven to rotate and respectively contact the first stationary contact (120) and the second stationary contact (130). The moving contact (110) is also connected with a locking component (140) and an energy storage component (150). The locking component (140) is used to lock the contact state between the moving contact (110) and the first stationary contact (120). When the moving contact (110) contacts the first stationary contact (120), the energy storage component (150) is compressed or stretched so that the energy storage component (150) stores energy. When the locking component (140) is driven to unlock, the energy storage component (150) releases energy to push the moving contact (110) to rotate and contact the second stationary contact (130).

2. The transfer switch according to claim 1, characterized in that: The conversion switch (100) has a first state and a second state, the first state being a state in which the moving contact (110) is in contact with the first stationary contact (120), and the second state being a state in which the moving contact (110) is in contact with the second stationary contact (130).

3. The transfer switch according to claim 1, characterized in that: It also includes a bracket, wherein the energy storage component (150) is arranged between the moving contact (110) and the bracket, and when the moving contact (110) moves in a direction close to the first stationary contact (120), the energy storage component (150) stores energy until the moving contact (110) contacts the first stationary contact (120), and the energy storage component (150) completes energy storage.

4. The transfer switch according to claim 3, characterized in that: When the moving contact (110) moves in a direction away from the first stationary contact (120), the energy storage component (150) releases energy until the moving contact (110) contacts the second stationary contact (130).

5. The transfer switch according to claim 1, characterized in that: The invention also comprises a bracket, wherein the locking assembly (140) comprises a locking member (141) arranged on the bracket and a buckling member (142) arranged on the moving contact (110), wherein the locking member (141) is rotatably connected to the bracket, and an end of the locking member (141) is close to the buckling member (142) and is locked with the buckling member (142), and the locking member (141) is released when it is away from the buckling member (142).

6. The transfer switch according to claim 5, characterized in that: The locking member (141) comprises a lock buckle (143), a rotating shaft (144) is arranged on the bracket, and one end of the lock buckle (143) is rotatably connected to the rotating shaft (144) so ​​that the other end of the lock buckle (143) approaches or moves away from the locking member (142).

7. The transfer switch according to claim 6, characterized in that: The lock buckle (143) is driven to rotate and move in a direction away from the fastening member (142) to release the locking of the locking member (141) and the fastening member (142).

8. The transfer switch according to claim 2, characterized in that: When the conversion switch (100) is in the second state, the moving contact (110) is driven to move toward the first stationary contact (120) until the moving contact (110) contacts the first stationary contact (120), and then the locking assembly (140) is locked.

9. The transfer switch according to any one of claims 3 to 7, characterized in that: The energy storage component (150) is an elastic member, and two ends of the elastic member are respectively connected to the bracket and the moving contact (110).

10. An energy storage system, characterized in that: It comprises a battery energy storage module and a conversion switch (100) as claimed in any one of claims 1 to 9, wherein the conversion switch (100) is used to control the on / off of a circuit of the battery energy storage module.

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