Energy storage system

By introducing conductive modules and driving devices into the battery energy storage system, the controllable electrical connection and disconnection of the battery pole part is achieved, and the safety problems caused by abnormal conditions during the charging and discharging of the battery energy storage system are solved, thereby improving safety.

CN223168090UActive Publication Date: 2025-07-29杨维元 +1
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Patent Information

Application Number
CN202421784912.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-26
Publication Date
2025-07-29
Estimated Expiration
2034-07-26

AI Technical Summary

Technical Problem

During the charging and discharging process, existing battery energy storage systems may lead to fire and other safety accidents due to abnormal conditions of a certain battery, and lack effective safety protection measures.

Method used

An energy storage system is designed, including a battery, a conductive module and a driving device. The driving device switches the conductive module between the first and second states, so as to realize the electrical connection and disconnection of the pole portion of the battery, ensuring that the circuit is cut off under abnormal conditions and avoiding safety accidents.

Benefits of technology

Improves safety during battery charging and discharging, and prevents safety accidents caused by a single battery failure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an energy storage system, and relates to the technical field of energy storage. The energy storage system comprises a plurality of batteries, a conductive module and a driving device, and each battery comprises a pole part; the conductive module is used for transmitting current; the conductive module has a first state and a second state; in the first state, the pole part of each battery is electrically connected with the conductive module; in the second state, the pole part of each battery is electrically disconnected from the conductive module; the driving device is used for driving the conductive module so that the conductive module can be switched between the first state and the second state. When charging and discharging are needed, the driving device drives the conductive module to a first state; when a certain battery is in an abnormal condition, the conductive module can be driven to the second state through the driving device, so that the circuit can be cut off, the plurality of batteries are protected, and safety accidents are avoided. The energy storage system can effectively improve the safety of the battery in the charging and discharging process.
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Description

Technical Field

[0001] This application relates to the technical field of energy storage, and particularly relates to an energy storage system. Background Art

[0002] Battery energy storage systems have high energy storage capacity and power. Battery energy storage systems usually require a large number of batteries to be assembled in series and parallel, so the safety requirements for batteries are very high. Without safety protection measures, when a certain battery fails, it will affect the operation of the entire battery energy storage system, and in severe cases, it may even lead to major safety accidents in the entire battery energy storage system.

[0003] Specifically, during the charging and discharging process of a battery energy storage system, due to abnormal conditions of a certain battery, other batteries connected in series and parallel with it may also become abnormal, leading to safety accidents such as fires. How to improve the safety during the charging and discharging process of batteries is an urgent problem to be solved at present. Summary of the Utility Model

[0004] The purpose of this application is to overcome the defects of the prior art and provide an energy storage system to solve the problems in the prior art.

[0005] To solve the above problems, an embodiment of this application provides an energy storage system, including batteries, a conductive module, and a driving device. There are multiple batteries, and among them, the battery includes a pole column part;

[0006] The conductive module has a first state and a second state: when in the first state, the pole column parts of each battery are electrically connected to the conductive module; when in the second state, the pole column parts of each battery are disconnected from the conductive module;

[0007] The driving device is used to drive the conductive module so that the conductive module switches between the first state and the second state.

[0008] In a possible implementation manner, the conductive module includes a first component and a second component;

[0009] Both the first component and the second component include a conductive elastic sheet, a flexible layer, and an insulating layer connected in sequence; among them, the elastic moduli of the flexible layer, the conductive elastic sheet, and the insulating layer increase in sequence;

[0010] The driving device includes a first driving module and a second driving module. The first driving module is used to drive the first component, and the second driving module is used to drive the second component; among them, the first driving module is connected to the insulating layer of the first component, and the second driving module is connected to the insulating layer of the second component.

[0011] In a possible implementation, both the first driving module and the second driving module include a linear driving part, and the linear driving part is fixedly connected to the corresponding insulating layer;

[0012] Wherein, the linear driving part of the first driving module is configured to drive the first component to perform a linear motion; the linear driving part of the second driving module is configured to drive the second component to perform a linear motion.

[0013] In a possible implementation, the first component and the second component are arranged at intervals;

[0014] When the conductive module is in the first state, each of the pole column parts is clamped between the first component and the second component, and the conductive elastic sheets of both the first component and the second component are in electrical contact with the pole column parts of each battery;

[0015] When the conductive module is in the second state, the conductive elastic sheets of both the first component and the second component are separated from the pole column parts of each battery.

[0016] In a possible implementation, the conductive elastic sheet includes a concave part, and the concave part is used to fit the surface of the pole column part; wherein, there are a plurality of concave parts, and they correspond to the batteries.

[0017] In a possible implementation, the battery includes a first end and a second end, and the pole column part includes a first pole column and a second pole column; the first pole column is arranged at the first end, and the second pole column is arranged at the second end.

[0018] In a possible implementation, it further includes a box body, the battery is arranged in a placement bin in the box body, and the placement bin corresponds to the battery;

[0019] The conductive module is arranged on the box body;

[0020] The conductive module includes a first mounting part and a first conductive part, the first conductive part corresponds to the first pole column, and the first conductive part is arranged on the first mounting part; wherein, the first mounting part is an insulator;

[0021] The first mounting part is movably arranged on the box body, and the first mounting part is connected to the driving device; wherein,

[0022] When the conductive module is in the first state, each of the first conductive members is in electrical contact with the corresponding first pole, and the entrance of the placement bin is closed by the first mounting portion; when the conductive module is in the second state, each of the first conductive members is separated from the corresponding first pole, and the entrance of the placement bin is opened.

[0023] In a possible implementation, a conductive module is provided on the box body;

[0024] The conductive module includes a second mounting portion and a second conductive member. The second conductive member corresponds to the second pole, and the second conductive member is disposed on the second mounting portion; wherein, the second mounting portion is an insulator;

[0025] The second mounting portion is fixedly disposed on the box body.

[0026] In a possible implementation, the battery is slidably disposed in a placement bin within the box body;

[0027] A power module is provided within the box body, and the power module corresponds to the battery; wherein, the power module is used to drive the corresponding battery to move so that at least a part of the battery moves outside the placement bin.

[0028] In a possible implementation, the power module includes a power motor, a rotating body, a traction wire, and a fixing portion;

[0029] The power motor is used to drive the rotating body to rotate; the rotating body is used for the traction wire to wind around; one end of the traction wire is connected to the rotating body, and the other end is connected to the fixing portion; the fixing portion is fixedly connected to the second pole.

[0030] The beneficial effects of the present application include:

[0031] The energy storage system proposed in the present application includes a battery, a conductive module, and a driving device. Among them, the driving device can drive the conductive module to switch between the first state and the second state: when the conductive module is in the first state, the pole portions of each battery are electrically connected to the conductive module; when the conductive module is in the second state, the pole portions of each battery are disconnected from the conductive module.

[0032] When charging and discharging are required, the driving device drives the conductive module to the first state; when an abnormal condition occurs in a certain battery, the driving device can drive the conductive module to the second state, thereby cutting off the circuit, thus realizing the protection of multiple batteries and avoiding safety accidents.

[0033] This energy storage system can effectively improve the safety during the charging and discharging process of the battery. Description of the Drawings

[0034] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related accompanying drawings can also be obtained based on these drawings.

[0035] Figure 1 Shows the assembly schematic diagram of the conductive module and multiple batteries in the first embodiment;

[0036] Figure 2 Shows Figure 1 Front view of

[0037] Figure 3 Shows the assembly schematic diagram of a conductive module and a driving device;

[0038] Figure 4 Shows the schematic diagram of a conductive elastic sheet;

[0039] Figure 5 Shows the schematic diagram of a battery;

[0040] Figure 6 Shows the first schematic diagram of the energy storage system when the first installation part is in the closed state in the second embodiment;

[0041] Figure 7 Shows Figure 6 The second schematic diagram of the energy storage system in

[0042] Figure 8 Shows the schematic diagram of the energy storage system when the first installation part is in the open state;

[0043] Figure 9 Shows the schematic diagram of the box body without batteries installed;

[0044] Figure 10 Shows the first schematic diagram after the assembly of a battery and a power module;

[0045] Figure 11 Shows Figure 10 The second schematic diagram after the assembly of the battery and the power module in

[0046] Figure 12 Shows the connection schematic diagram of a power motor and a rotating body;

[0047] Figure 13 Shows Figure 9 The partial enlarged view in the a direction in

[0048] Main element symbol description:

[0049] 100 - Battery; 101 - First end; 102 - Second end; 110 - Terminal part; 111 - First terminal; 112 - Second terminal; 200 - Conductive module; 210 - First component; 220 - Second component; 231 - Conductive elastic sheet; 2311 - Recess; 232 - Flexible layer; 233 - Insulating layer; 310 - First driving module; 320 - Second driving module; 330 - Linear driving part; 400 - Box body; 410 - Placement bin; 411 - Entrance; 420 - Second connection part; 430 - Accommodation cavity; 500 - Conductive module; 510 - First mounting part; 520 - First conductive part; 530 - First connection part; 600 - Conductive module group; 610 - Second mounting part; 620 - Second conductive part; 700 - Power module; 710 - Power motor; 720 - Rotating body; 730 - Traction line; 740 - Fixing part. Detailed implementation manners

[0050] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0051] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0052] Embodiment 1

[0053] Refer to Figures 1-3 , in this embodiment, an energy storage system is proposed, including a plurality of batteries 100 arranged in sequence along a preset straight line. Among them, the driving device is not shown in Figure 1 and 2 .

[0054] The battery 100 includes a terminal part 110. Among them, the terminal part 110 includes a first terminal 111 and a second terminal 112.

[0055] The conductive module 200 is used for transmitting electric energy. Among them, the conductive module 200 has a first state and a second state: when in the first state, the pole column parts 110 of each battery 100 are electrically connected to the conductive module 200; when in the second state, the pole column parts 110 of each battery 100 are disconnected from the conductive module 200.

[0056] The driving device is used to drive the conductive module 200 so that the conductive module 200 can be switched between the first state and the second state.

[0057] When charging and discharging are required, the driving device drives the conductive module 200 to the first state; when there is an abnormal condition in a certain battery 100, the driving device can drive the conductive module 200 to the second state, thereby cutting off the circuit, realizing the protection of multiple batteries 100, and avoiding safety accidents. This energy storage system can effectively improve the safety during the charging and discharging process of the battery 100.

[0058] The conductive module 200 includes a first component 210 and a second component 220.

[0059] As Figure 3 shown, the first component 210 includes a conductive elastic sheet 231, a flexible layer 232 and an insulating layer 233 connected in sequence. Among them, the elastic moduli of the flexible layer 232, the conductive elastic sheet 231 and the insulating layer 233 increase in sequence. The second component 220 has the same structure as the first component 210. Specifically, the second component 220 also includes a conductive elastic sheet 231, a flexible layer 232 and an insulating layer 233 connected in sequence. Among them, the elastic moduli of the flexible layer 232, the conductive elastic sheet 231 and the insulating layer 233 increase in sequence. The larger the elastic modulus, the less likely it is to deform.

[0060] Taking charging as an example, the conductive elastic sheets 231 of both the first component 210 and the second component 220 of the conductive module 200 are connected to the positive or negative pole of the power supply device; taking discharging as an example, the conductive elastic sheets 231 of both the first component 210 and the second component 220 of the conductive module 200 are connected to the positive or negative pole of the electrical equipment.

[0061] The conductive elastic sheet 231 includes a copper sheet or an aluminum sheet, etc. In other embodiments, the conductive elastic sheet 231 can also be made of other metal materials.

[0062] The flexible layer 232 includes a sponge layer or an elastic cotton layer, etc. In other embodiments, the flexible layer 232 can also be made of materials such as cotton or floss.

[0063] The insulating layer 233 includes a plastic steel layer or a glass layer, etc. In other embodiments, the insulating layer 233 can also be made of other polymer materials such as plastic.

[0064] Since the elastic modulus of the flexible layer 232 is smaller than that of the conductive elastic sheet 231, when the conductive elastic sheet 231 is deformed under the pressure of the pole part 110, the flexible layer 232 can play a buffering role. Among the flexible layer 232, the conductive elastic sheet 231 and the insulating layer 233, the insulating layer 233 has the largest elastic modulus, which means that the insulating layer 233 is least likely to deform. Therefore, when an external force acts on the insulating layer 233, the insulating layer 233 can better transfer the acting force to the conductive elastic sheet 231, making the conductive elastic sheet 231 fit more closely with the pole part 110.

[0065] As Figure 3 shown, in this embodiment, the driving device includes a first driving module 310 and a second driving module 320. The first driving module 310 is used to drive the first component 210, and the second driving module 320 is used to drive the second component 220. Among them, the first driving module 310 is connected to the insulating layer 233 of the first component 210, and the second driving module 320 is connected to the insulating layer 233 of the second component 220.

[0066] Both the first driving module 310 and the second driving module 320 include a linear driving part 330, and the linear driving part 330 is fixedly connected to the corresponding insulating layer 233. Among them, the linear driving part 330 of the first driving module 310 is configured to drive the first component 210 to perform a linear motion, and the linear driving part 330 of the second driving module 320 is configured to drive the second component 220 to perform a linear motion.

[0067] The first driving module 310 includes a cylinder, a hydraulic cylinder or a linear motor, and the second driving module 320 includes a cylinder, a hydraulic cylinder or a linear motor. In addition, the first driving module 310 and the second driving module 320 may further include a linear motion mechanism, for example, a lead screw nut mechanism, etc.

[0068] The first component 210 and the second component 220 are arranged at intervals, so that the pole part 110 of the battery 100 can be placed between the first component 210 and the second component 220.

[0069] When the conductive module 200 is in the first state, each pole part 110 is clamped between the first component 210 and the second component 220, and the conductive elastic sheets 231 of both the first component 210 and the second component 220 are in electrical contact with the pole parts 110 of each battery 100;

[0070] When the conductive module 200 is in the second state, the conductive elastic sheets 231 of both the first component 210 and the second component 220 are separated from the pole parts 110 of each battery 100.

[0071] As Figure 4As shown, the conductive elastic piece 231 includes a concave portion 2311 for fitting onto the surface of the pole portion 110. Among them, there are multiple concave portions 2311, which correspond to the batteries 100. Specifically, the concave portions 2311 correspond to the batteries 100 one by one.

[0072] The pole portion 110 is cylindrical, and the cross-section of the concave portion 2311 is arc-shaped.

[0073] As Figure 5 shown, the battery 100 includes a first end portion 101 and a second end portion 102. The first pole 111 is disposed at the first end portion 101, and the second pole 112 is disposed at the second end portion 102. The conductive module 200 corresponds to the driving device one by one.

[0074] In this embodiment, there are two conductive modules 200, which respectively correspond to the first pole 111 and the second pole 112. For convenience of description, the two conductive modules 200 are respectively named the first conductive module and the second conductive module. Refer to Figure 2 , the conductive module 200 located above is the first conductive module, and the conductive module 200 located below is the second conductive module.

[0075] For example, the first conductive module is electrically connected to the positive electrode of the power supply or the electrical device, and the first conductive module corresponds to the first pole 111; the second conductive module is electrically connected to the negative electrode of the power supply or the electrical device, and the second conductive module corresponds to the second pole 112: when the circuit is in a conducting state, the conductive elastic piece 231 of the first conductive module is in electrical contact with the first pole 111 of each battery 100, and the conductive elastic piece 231 of the second conductive module is in electrical contact with the second pole 112 of each battery 100; when a fault occurs in the battery 100, the conductive elastic piece 231 of the first conductive module is separated from the first pole 111 of each battery 100, and the conductive elastic piece 231 of the second conductive module is separated from the second pole 112 of each battery 100.

[0076] In some other embodiments, there is one conductive module 200, which corresponds to the first pole 111 or the second pole 112. For example, the conductive module 200 is electrically connected to the positive electrode of the power supply or the electrical device, and the conductive module 200 also corresponds to the first pole 111; the second pole 112 is electrically connected to the negative electrode of the power supply or the electrical device through a conductive device such as a conductive sheet: when the circuit is in a conducting state, the conductive elastic piece 231 of the conductive module 200 is in electrical contact with the first pole 111 of each battery 100; when a fault occurs in the battery 100, the conductive elastic piece 231 of the conductive module 200 is separated from the first pole 111 of each battery 100.

[0077] Embodiment 2

[0078] Refer to Figures 6-9, the energy storage system proposed in this embodiment includes a box body 400. Among them, the battery is arranged in the placement bin 410 inside the box body 400, and the placement bin 410 corresponds to the battery 100. Specifically, the placement bin 410 corresponds to the battery 100 one by one.

[0079] Considering ensuring the safety of power consumption, the box body 400 is made of insulating materials such as plastics.

[0080] The placement bin 410 includes an entrance 411. Among them, the battery is placed into the placement bin 410 through the entrance 411 of the placement bin 410.

[0081] In this embodiment, the conductive module 500 is arranged on the box body 400.

[0082] As Figure 9 shown, the conductive module 500 includes a first mounting portion 510 and a first conductive member 520. The first conductive member 520 corresponds to the first pole 111, and the first conductive member 520 is arranged on the first mounting portion 510. Among them, the first mounting portion 510 is an insulator, and the first mounting portion 510 can be made of insulating materials such as plastics. For the convenience of manufacturing, the first mounting portion 510 can adopt a plate-like structure.

[0083] The first conductive member 520 can be a ring structure or a sheet structure, etc. The first conductive member 520 is fixed on the first mounting portion 510, and wires (not shown in the drawings) can be arranged inside the first mounting portion 510. Among them, the first conductive member 520 is electrically connected to the wires. The first conductive member 520 corresponds to the first pole 111 one by one.

[0084] The first mounting portion 510 is movably arranged on the box body 400, and the first mounting portion 510 is connected to a driving device. Among them, the first mounting portion 510 has an open state and a closed state relative to the box body 400. Specifically, the first mounting portion 510 is rotatably connected to the box body 400.

[0085] As Figure 7 shown, in this embodiment, a first connecting portion 530 is arranged on the first mounting portion 510, and a second connecting portion 420 is arranged on the box body 400. Among them, the first connecting portion 530 and the second connecting portion 420 are in shaft-hole fit to achieve rotational connection. For example, a rotating shaft is arranged on the first connecting portion 530, and a transfer hole is arranged on the second connecting portion 420. Among them, the rotating shaft is inserted into the transfer hole, and the rotating shaft is rotatably connected to the transfer hole.

[0086] In other embodiments, the first mounting portion 510 and the box body 400 can also be rotatably connected through structures such as hinges and hinges.

[0087] The drive device includes a motor, a driving gear, and a driven gear. Among them, the motor can be fixed to the side of the box body 400, the driving gear is installed on the output shaft of the motor, and the driven gear is fixed to the top surface of the first connecting portion 530. Among them, the driving gear meshes with the driven gear. The end surface of the first connecting portion 530 away from the second connecting portion 420 is the top surface of the first connecting portion 530.

[0088] In addition, the drive device can also refer to the existing door opening mechanism.

[0089] In this embodiment, when the conductive module 500 is in the first state, each first conductive member 520 is in electrical contact with the corresponding first pole 111, and the entrance 411 of the placement bin 410 is closed by the first mounting portion 510. At this time, the first mounting portion 510 is in a closed state relative to the box body 400. When the conductive module 500 is in the second state, each first conductive member 520 is separated from the corresponding first pole 111, and the entrance 411 of the placement bin 410 is opened. At this time, the first mounting portion 510 is in an open state relative to the box body 400.

[0090] In this embodiment, a conductive module 600 is provided on the box body 400.

[0091] The conductive module 600 includes a second mounting portion 610 and a second conductive member 620. The second conductive member 620 corresponds to the second pole 112, and the second conductive member 620 is provided on the second mounting portion 610.

[0092] The second conductive member 620 can be in a ring structure, a sheet structure, etc. The second conductive member 620 is fixed to the first mounting portion 510, and wires (not shown in the drawings) can be arranged inside the second mounting portion 610. Among them, the second conductive member 620 is electrically connected to the wires. The second conductive member 620 corresponds to the second electrode one by one. Figure 7 The shown second conductive member 620 is in a ring structure. Among them, the second electrode is inserted into the second conductive member 620, and the second electrode is in contact with the second conductive member 620.

[0093] The second mounting portion 610 is an insulator, and the second mounting portion 610 can be made of an insulating material such as plastic. For the convenience of manufacturing, the second mounting portion 610 can adopt a plate-like structure. Among them, the second mounting portion 610 is fixedly arranged on the box body 400. For example, the fixed connection can be achieved by means of screw connection, snap connection, etc.

[0094] In this embodiment, the battery is slidably arranged in the placement bin 410 inside the box body 400.

[0095] A power module 700 is arranged inside the box body 400, and the power module 700 corresponds to the battery 100. Among them, the power module 700 is used to drive the corresponding battery 100 to move, so that at least part of the battery 100 moves outside the placement bin 410.

[0096] The power module 700 corresponds to each battery one by one. When a detected battery fails, the driving device controls the first installation part 510 to open, thereby achieving power-off and opening the entrance 411 of the placement bin 410; subsequently, the corresponding power module 700 is used to drive the faulty battery to move, so as to push the faulty battery out of the placement bin 410.

[0097] As Figure 10 、 Figure 11 and Figure 12 shown, the power module 700 includes a power motor 710, a rotating body 720, a traction line 730 and a fixing part 740.

[0098] The power motor 710 is used to drive the rotating body 720 to rotate. The power motor 710 can adopt a micro motor.

[0099] The rotating body 720 is used for the traction line 730 to wind around. The rotating body 720 can adopt a shaft structure or a wheel structure.

[0100] One end of the traction line 730 is connected to the rotating body 720, and the other end is connected to the fixing part 740.

[0101] The fixing part 740 is fixedly connected to the second pole 112. For example, structures such as buckles and clamping grooves can be arranged on the fixing part 740, so that the fixing part 740 and the second pole 112 are fixedly connected by a clamping method. In addition, the fixing part 740 can also adopt structures such as a hoop and a hose clamp.

[0102] When the power motor 710 is started, the rotating body 720 will rotate. Among them, as the rotating body 720 rotates, the traction line 730 will be wound around the rotating body 720. During this process, the traction line 730 will pull the fixing part 740, thereby causing the battery 100 to move.

[0103] As Figure 13 shown, a receiving cavity 430 is arranged inside the box body 400. Both the power motor 710 and the rotating body 720 are arranged inside the receiving cavity 430, and among them, the power motor 710 is fixedly connected to the inner wall of the receiving cavity 430. The receiving cavity 430 corresponds to the placement bin 410 one by one, and among them, the receiving cavity 430 is communicated with the corresponding placement bin 410.

[0104] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0105] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. An energy storage system, characterized in that, It includes a battery, a conductive module and a driving device. There are multiple batteries, and among them, the battery includes a terminal portion; The conductive module has a first state and a second state: when in the first state, the terminal portions of each battery are electrically connected to the conductive module; when in the second state, the terminal portions of each battery are disconnected from the conductive module; The driving device is used to drive the conductive module so that the conductive module can be switched between the first state and the second state.

2. The energy storage system according to claim 1, characterized in that The conductive module includes a first component and a second component; Both the first component and the second component include a conductive elastic sheet, a flexible layer and an insulating layer connected in sequence; among them, the elastic moduli of the flexible layer, the conductive elastic sheet and the insulating layer increase in sequence; The driving device includes a first driving module and a second driving module. The first driving module is used to drive the first component, and the second driving module is used to drive the second component; among them, the first driving module is connected to the insulating layer of the first component, and the second driving module is connected to the insulating layer of the second component.

3. The energy storage system according to claim 2, wherein Both the first driving module and the second driving module include a linear driving portion, and the linear driving portion is fixedly connected to the corresponding insulating layer; Among them, the linear driving portion of the first driving module is configured to drive the first component to perform a linear motion; the linear driving portion of the second driving module is configured to drive the second component to perform a linear motion.

4. The energy storage system according to claim 2, wherein The first component and the second component are arranged at intervals; When the conductive module is in the first state, each terminal portion is clamped between the first component and the second component, and the conductive elastic sheets of both the first component and the second component are in electrical contact with the terminal portions of each battery; When the conductive module is in the second state, the conductive elastic sheets of both the first component and the second component are separated from the terminal portions of each battery.

5. The energy storage system according to claim 2, wherein The conductive elastic sheet includes a concave portion for fitting with the surface of the terminal portion; among them, there are multiple concave portions, and they correspond to the batteries.

6. The energy storage system according to claim 1, characterized in that The battery includes a first end and a second end, and the terminal portion includes a first terminal and a second terminal; the first terminal is arranged at the first end, and the second terminal is arranged at the second end.

7. The energy storage system according to claim 6, characterized in that, It further includes a box body. The battery is arranged in a placement bin in the box body, and the placement bin corresponds to the battery; The conductive module is arranged on the box body; The conductive module includes a first mounting portion and a first conductive member. The first conductive member corresponds to the first terminal, and the first conductive member is arranged on the first mounting portion; among them, the first mounting portion is an insulator; The first mounting portion is movably arranged on the box body, and the first mounting portion is connected to the driving device; among them, When the conductive module is in the first state, each of the first conductive members is in electrical contact with the corresponding first pole, and the entrance of the placement bin is closed by the first mounting portion; when the conductive module is in the second state, each of the first conductive members is separated from the corresponding first pole, and the entrance of the placement bin is opened.

8. The energy storage system according to claim 7, wherein, A conductive module is provided on the box body; The conductive module includes a second mounting portion and a second conductive member, the second conductive member corresponds to the second pole, and the second conductive member is disposed on the second mounting portion; wherein, the second mounting portion is an insulator; The second mounting portion is fixedly disposed on the box body.

9. The energy storage system according to claim 8, wherein The battery is slidably disposed in a placement bin within the box body; A power module is disposed within the box body, the power module corresponding to the battery; wherein, the power module is configured to drive the corresponding battery to move such that at least a portion of the battery moves outside of the placement bin.

10. The energy storage system according to claim 9, characterized in that, The power module includes a power motor, a rotating body, a traction wire, and a fixing portion; The power motor is configured to drive the rotating body to rotate; the rotating body is configured to wind the traction wire; one end of the traction wire is connected to the rotating body, and the other end is connected to the fixing portion; the fixing portion is fixedly connected to the second pole.