Energy storage device

Abstract

The present application relates to the technical field of energy storage, and provides an energy storage device. The energy storage device comprises a battery and a protection system acting on the battery; the protection system comprises a conductive member, a detection module and a control module; the conductive member is fixedly and electrically connected to a pole of the battery; the conductive member is used for fixing the pole, so that the battery is located at an initial position; the conductive member is electrically connected to a power supply device or an electric device; the detection module is used for detecting parameter information during charging and discharging of the battery; the control module is used for controlling electrical separation between the conductive member and the pole when the parameter information is abnormal, and controlling the conductive member to loosen the pole, so that the battery leaves the initial position. The energy storage device can effectively improve the safety during the charging and discharging of the battery.

Description

An energy storage device Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to an energy storage device. Background Art

[0002] Battery energy storage systems can operate on or off the grid. In the energy storage link of the smart grid, battery energy storage systems can effectively regulate power resources, balance the differences in electricity consumption in different time periods and seasons, and ensure the safe and stable operation of the power grid.

[0003] Battery energy storage systems are composed of multiple cells. During the charging and discharging process, abnormal conditions can cause safety incidents such as fires. Improving battery safety during this process is a pressing issue.

[0004] Summary of the Invention

[0005] The purpose of this application is to overcome the defects of the prior art and provide an energy storage device to solve the problems in the prior art.

[0006] To solve the above problems, an embodiment of the present application provides an energy storage device, including a battery and a protection system acting on the battery; the protection system includes a conductive member, a detection module and a control module;

[0007] The conductive member is fixedly connected to the pole of the battery and is electrically connected; the conductive member fixes the pole so that the battery is in an initial position; the conductive member is electrically connected to the power supply device or the power consumption device; wherein,

[0008] The detection module is used to detect parameter information of the battery during charging and discharging;

[0009] The control module is configured to control the electrical separation between the conductive member and the pole when the parameter information is abnormal; and control the conductive member to release the pole so that the battery leaves the initial position.

[0010] In a possible embodiment, there are one or more batteries, and the batteries are slidably disposed in the housing;

[0011] The battery includes a first end and a second end, and the first end and the second end are both provided with the pole; wherein the pole located at the first end is named the first pole, and the pole located at the second end is named the second pole;

[0012] The conductive member is provided on the first pole and / or the second pole.

[0013] In a possible implementation manner, the height of the first end portion is higher or lower than the second end portion, wherein, after the conductive member is separated from the pole, the battery leaves the initial position under the action of gravity.

[0014] In a possible implementation manner, a driving device is further included, wherein the driving device is configured to provide a driving force to the battery after the conductive member is separated from the pole, so as to move the battery away from the initial position.

[0015] In one possible embodiment, the driving device includes an elastic member; when the battery is in the initial position, the elastic member is in a deformed state, and one end of the elastic member abuts against the battery; when the conductive member is separated from the terminal, the elastic member provides an elastic force to the battery to cause the battery to leave the initial position; or

[0016] The driving device includes a power module, and the power module includes a driving part; when the conductive member is separated from the pole, the power module drives the driving part to move linearly; wherein the driving part applies a force to the battery to cause the battery to leave the initial position; or

[0017] The driving device includes a power module and a flexible transmission member; one end of the flexible transmission member is connected to the battery, and the other end is connected to the power module; when the conductive member is separated from the pole, the power module drives the flexible transmission member to reel; wherein, the flexible transmission member applies a force to the battery to cause the battery to leave the initial position.

[0018] In a possible implementation manner, a restraining member is provided on the conductive member; wherein,

[0019] The restraining member has a restraining state and a releasing state:

[0020] When in the restrained state, the restraining member is used to apply a restraining force to the conductive member so that the conductive member and the pole are relatively fixed and electrically connected;

[0021] When in the released state, the restraining member is used to release the restraining force applied to the conductive member when the parameter information is abnormal, so that the conductive member is electrically separated from the pole, and the conductive member loosens the pole so that the battery leaves the initial position.

[0022] In a possible embodiment, the conductive member includes a first clamping arm and a second clamping arm; two ends of the restraining member are respectively connected to the first clamping arm and the second clamping arm;

[0023] When the restraining member is in the restraining state, the pole is clamped between the first clamping arm and the second clamping arm, and both the first clamping arm and the second clamping arm are in electrical contact with the pole;

[0024] When the restraint is in the released state, the first clamp arm and the second clamp arm are electrically separated from the pole, and the first clamp arm and the second clamp arm release the pole.

[0025] In a possible implementation, the first clamping arm includes a first connecting end and a first free end, and the second clamping arm includes a second connecting end and a second free end;

[0026] The restraining member includes a first mounting portion and a second mounting portion, the first mounting portion is used to connect to the first free end, and the second mounting portion is used to connect to the second free end;

[0027] When the restraining member is in the restraining state, the first mounting portion and the second mounting portion are connected; when the restraining member is in the releasing state, the first mounting portion and the second mounting portion are disconnected;

[0028] The conductive member also includes a connecting portion, to which the first connecting end and the second connecting end are both connected; the connecting portion is used to provide a force to the first clamping arm and the second clamping arm when the restraining member is in a released state, so that the first clamping arm and the second clamping arm are separated from the pole.

[0029] In one possible embodiment, the restraint includes a fusible connecting section; when the connecting section is not fused, the restraint is in the restrained state, wherein the first mounting portion, the connecting section, and the second mounting portion are sequentially connected; after the connecting section is energized and fused, the restraint is in the released state; or

[0030] The restraining member includes an electromagnet; among the first mounting part and the second mounting part, one is fixedly connected to the electromagnet, and the other is fixedly provided with a magnetic conductive part; when the electromagnet is energized, the restraining member is in the restrained state, wherein the electromagnet and the magnetic conductive part are magnetically attracted to each other; after the electromagnet is powered off and loses magnetism, the restraining member is in the released state, wherein the electromagnet is disconnected from the magnetic conductive part.

[0031] In a possible implementation manner, the protection system further includes an alarm device; wherein the alarm device is configured to send an alarm signal when the parameter information is abnormal.

[0032] The beneficial effects of this application include:

[0033] The energy storage device proposed in this application fixes the battery pole through a conductive member. During the battery charging and discharging process, if an abnormality is detected in the battery parameter information, the conductive member can be separated from the pole, thereby disconnecting the electrical connection between the conductive member and the pole, thereby stopping the charging and discharging of the battery. At the same time, the conductive member will also loosen the pole, allowing the battery to move away from its initial position, thereby achieving removal of the battery.

[0034] This energy storage device can effectively improve the safety of the battery during charging and discharging. When a faulty battery is detected, it automatically disconnects the battery and moves the battery away from its initial position to facilitate the removal of the faulty battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. 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 relevant drawings can be obtained based on these drawings without creative work.

[0036] FIG1 shows a schematic diagram of a battery with a conductive member provided on a first pole and its connection with a power supply device;

[0037] FIG2 shows a block diagram of the connection between a detection device, a control module, a restraining member and an alarm device;

[0038] FIG3 shows a schematic diagram of a battery in which conductive members are provided on both the first pole and the second pole, and its connection with a power supply device;

[0039] FIG4 shows a schematic diagram of an assembly of a battery and a housing;

[0040] FIG5 shows a schematic diagram of an inclined arrangement of batteries in a housing;

[0041] FIG6 shows a schematic diagram of a vertical arrangement of batteries in a housing;

[0042] FIG7 shows a schematic diagram of the connection between a battery and a restraining member;

[0043] FIG8 is a schematic diagram showing a restraining member including a connecting section and the restraining member being in a restraining state;

[0044] FIG9 shows a schematic diagram of a restraining member in a released state;

[0045] FIG10 is a schematic diagram showing a restraining member including an electromagnet and the restraining member being in a restraining state;

[0046] FIG11 shows a schematic diagram of the connection between the battery and the driving device in the second embodiment;

[0047] FIG12 shows a schematic diagram of the connection between the battery and the driving device in Example 3;

[0048] FIG13 shows a schematic diagram of the connection between the battery and the driving device in the fourth embodiment.

[0049] Description of main component symbols:

[0050] 10-battery; 11-first pole; 12-second pole; 13-first end; 14-second end; 20-power supply device; 30-housing; 100-conductive member; 101-inner recess; 102-first surface; 103-second surface; 104-insulating layer; 110-first clamping arm; 111-first connecting end; 112-first free end; 120-second clamping arm; 121-second connecting end; 122-second free end; 130-connecting part; 200-detection device; 300-control module; 400-constraint member; 410-first mounting part; 420-second mounting part; 430-connecting section; 441-electromagnet; 442-magnetic member; 500-conductive body; 600-alarm device; 700-driving device; 710-power module; 720-driving part; 730-flexible transmission member; 740-roller. DETAILED DESCRIPTION

[0051] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0052] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] In the present application, it is understood that connection includes fixed connection, movable connection or contact, etc.

[0054] Example 1

[0055] 1 and 2 , in this embodiment, an energy storage device is provided, including a battery 10 and a protection system acting on the battery 10. The protection system includes a conductive member 100, a detection module 200, and a control module 300.

[0056] The conductive member 100 is fixedly connected to and electrically connected to the battery 10's terminal. The conductive member 100 secures the terminal to maintain the battery 10 in its initial position. The conductive member 10 is electrically connected to either a power supply device 20 or a power-consuming device. The power supply device 20 provides electrical energy to charge the battery 10; the power-consuming device receives the electrical energy provided by the battery 10. Only the power supply device 20 is shown in the accompanying figures.

[0057] The conductive member 100 can be made of conductive materials such as copper and silver. The power supply device 20 can include a power grid and a conversion device, including a rectifier and a transformer. The conversion device can convert the alternating current (AC) transmitted by the power grid into direct current (DC) of a corresponding voltage value, thereby charging the battery 10. Power-consuming devices include electrical appliances, etc.

[0058] During the charging and discharging process of the battery 10:

[0059] The detection module 200 is used to detect parameter information of the battery 10 during charging and discharging;

[0060] The control module 300 is configured to electrically separate the conductive member 100 from the terminal post when the parameter information is abnormal, and to control the conductive member 100 to release the terminal post, thereby allowing the battery 10 to move from its initial position. Specifically, in this embodiment, when the parameter information is abnormal, the control module 300 controls the restraining member 400 to switch from a restrained state to a released state, thereby electrically separating the conductive member 100 from the terminal post and causing the conductive member 100 to release the terminal post, thereby allowing the battery 10 to move from its initial position.

[0061] The parameter information may include temperature and / or current.

[0062] As shown in Figure 2, in this embodiment, the protection system includes a detection device 200, a control module 300 and an alarm device 600. The detection device 200 is used to detect parameter information of the battery 10 during charging and discharging. The control module 300 is used to send a control signal to separate the conductive member 100 from the pole. The alarm device 600 is used to send an alarm signal when the parameter information is abnormal.

[0063] In some embodiments, the detection device 200 includes a temperature detection module, wherein the parameter information includes temperature. The temperature detection module includes a temperature sensor. During the charge and discharge process of the battery 10, when the temperature detection module detects that the temperature of the battery 10 exceeds a preset temperature, it indicates that the parameter information is abnormal and that the battery 10 is abnormal. At this time, the control module 300 will send a control signal to the restraint 400, thereby separating the conductive member 100 from the terminal. Since the electrical connection is open, the charging and discharging of the battery 10 is automatically stopped.

[0064] In some embodiments, the detection device 200 includes a current detection module, wherein the parameter information includes current. The current detection module includes a current sensor. During the charge and discharge process of the battery 10, when the current detection module detects that the current of the battery 10 exceeds a preset current, it indicates that the parameter information is abnormal and that the battery 10 has an abnormality. At this time, the control module 300 will send a control signal to the restraint 400, thereby separating the conductive member 100 from the terminal. Due to the disconnection of the electrical connection, the charging and discharging of the battery 10 is automatically stopped.

[0065] The control module 300 may include a single chip microcomputer or a microprocessor. The alarm device 600 may be a buzzer, a flashing light, etc. The alarm signal emitted by the alarm device 600 can serve to alert the staff. The alarm device 600 is electrically connected to the control module 300.

[0066] As shown in FIG1 , the battery 10 includes a first end 13 and a second end 14 , both of which are provided with terminals. The terminal at the first end 13 is named as the first terminal 11 , and the terminal at the second end 14 is named as the second terminal 12 .

[0067] In the first pole 11 and the second pole 12, one is a positive pole and the other is a negative pole. For the convenience of description, the first pole 11 is set as a positive pole and the second pole 12 is set as a negative pole.

[0068] A conductive member 100 is provided on the first pole 11 and / or the second pole 12 .

[0069] As shown in Figure 1, in this embodiment, the conductive member 100 is disposed on the first pole 11. Specifically, the first pole 11 corresponds to the conductive member 100, and the second pole 12 corresponds to the conductor 500. During charging, the conductive member 100 is connected to the positive electrode of the power supply device 20, and the conductor 500 is connected to the negative electrode of the power supply device 20. During discharging, the conductive member 100 is connected to the positive electrode of the power consumption device, and the conductor 500 is connected to the negative electrode of the power consumption device.

[0070] When the battery 10 is in the initial position, the first pole 11 is fixedly connected and electrically connected to the conductive member 100, and the second pole 12 is electrically connected to the conductor 500. The conductive member 100 can be a metal sheet.

[0071] As shown in FIG3 , in other embodiments, a conductive member 100 is provided on both the first electrode 11 and the second electrode 12. When the battery 10 is in the initial position, the conductive member 100 corresponding to the first electrode 11 is fixedly connected and electrically connected to the first electrode 11, and the conductive member 100 corresponding to the second electrode 12 is fixedly connected and electrically connected to the second electrode 12.

[0072] The energy storage device includes a housing 30 in which one or more batteries 10 are slidably disposed.

[0073] As shown in FIG. 4 , the energy storage device includes a plurality of batteries 10 , and each of the batteries 10 is slidably disposed in a housing 30 .

[0074] After the conductive member 100 releases the terminal post, the battery 10 can move away from the initial position under the action of gravity.

[0075] As shown in Figure 5, in this embodiment, the first end 13 is higher than the second end 14. When the conductive member 100 separates from the terminal, the battery 10 moves away from its initial position under the action of gravity. The central axis of the battery 10 is in an inclined state. As shown in Figure 6, in another embodiment, the central axis of the battery 10 can be in a vertical state.

[0076] In other embodiments, the height of the first end portion 13 is lower than that of the second end portion 14 .

[0077] When the conductive member 100 is separated from the pole, the battery 10 fixes the conductive member 100 . At this time, the battery 10 slides relative to the housing 30 under the action of gravity, thereby leaving the initial position.

[0078] As shown in Figures 7 to 9, in this embodiment, a restraining member 400 is provided on the conductive member 100. It should be noted that the battery 10 is not shown in Figures 8 and 9 for ease of observation. The restraining member 400 has a restrained state and a released state:

[0079] When in the restrained state, the restraining member 400 is used to apply a restraining force to the conductive member 100 so that the conductive member 100 and the first pole 11 are relatively fixed and electrically connected;

[0080] When in the released state, the restraint 400 is used to release the restraint force applied to the conductive member 100 when the parameter information is abnormal, so that the conductive member 100 is electrically separated from the first pole 11, and the conductive member 100 loosens the first pole 11 so that the battery leaves the initial position.

[0081] In this embodiment, both the detection device 200 and the restraint 400 are electrically connected to the control module 300. The detection device 200 is used to detect parameter information during the charging and discharging of the battery 10. The control module 300 is used to send a control signal to the restraint 400 when the parameter information is abnormal. The restraint 400 is used to switch from a restrained state to a released state upon receiving the control signal.

[0082] The conductive member 100 includes a first clamping arm 110 and a second clamping arm 120. The two ends of the restraining member 400 are connected to the first clamping arm 110 and the second clamping arm 120, respectively. In this embodiment, the first clamping arm 110 and the second clamping arm 120 are separated from the terminal, indicating that the first clamping arm 110 and the second clamping arm 120 are electrically separated from the terminal and the first clamping arm 110 and the second clamping arm 120 are released from the terminal.

[0083] When the restraining member 400 is in the restraining state, the first pole 11 is clamped between the first clamping arm 110 and the second clamping arm 120 , and both the first clamping arm 110 and the second clamping arm 120 are in electrical contact with the first pole 11 ;

[0084] When the restraining member 400 is in the released state, the first clamping arm 110 and the second clamping arm 120 are electrically separated from the first pole 11, and the first clamping arm 110 and the second clamping arm 120 release the first pole 11. As a result, the conductive member 100 is electrically disconnected from the first pole 11, and the conductive member 100 releases the first pole 11.

[0085] The conductive member 100 can be connected to a fixing member. When the restraining member 400 is in the released state, the restraining member 400 is disconnected from the first pole 11. At this time, the fixing member can connect the restraining member 400, thereby preventing the restraining member 400 from falling. The restraining member 400 can be connected to the fixing member by a rope, etc. It should be noted that the fixing member is not shown in the drawings. The fixing member can be in the form of a strip, column, plate, etc.

[0086] The first clamping arm 110 includes a first connecting end 111 and a first free end 112 , and the second clamping arm 120 includes a second connecting end 121 and a second free end 122 .

[0087] The restraining member 400 includes a first mounting portion 410 and a second mounting portion 420 . The first mounting portion 410 is used to connect to the first free end 112 , and the second mounting portion 420 is used to connect to the second free end 122 .

[0088] When the restraining member 400 is in the restraining state, the first mounting portion 410 and the second mounting portion 420 are connected;

[0089] When the restraining member 400 is in the released state, the first mounting portion 410 is disconnected from the second mounting portion 420 .

[0090] Both the first mounting portion 410 and the second mounting portion 420 can be insulating members. For example, the first mounting portion 410 and the second mounting portion 420 can be made of a non-conductive material such as plastic. The first mounting portion 410 and the first free end 112, and the second mounting portion 420 and the second free end 122, can be secured by welding, clamping, or gluing.

[0091] Furthermore, the conductive member 100 further includes a connecting portion 130, to which the first connecting end 111 and the second connecting end 121 are both connected. The connecting portion 130 is configured to apply a force to the first clamping arm 110 and the second clamping arm 120 when the restraining member 400 is in the released state, so that the first clamping arm 110 and the second clamping arm 120 are separated from the first pole 11.

[0092] The connecting portion 130 is elastic and is used to provide elastic force to the first clamping arm 110 and the second clamping arm 120 when the restraining member 400 is in the released state, so that the first clamping arm 110 and the second clamping arm 120 are separated from the first pole 11 .

[0093] In this embodiment, the conductive member 100 can be made of an elastic conductive material. The first clamp arm 110, the connecting portion 130, and the second clamp arm 120 are connected in sequence and formed in one piece. When the restraining member 400 is in the restraining state, the restraining member 400 applies a restraining force to the first clamp arm 110 and the second clamp arm 120, so that the first pole 11 is clamped between the first clamp arm 110 and the second clamp arm 120. At this time, the connecting portion 130 is in a deformed state; when the restraining force disappears, the connecting portion 130, under the action of its own elastic force, causes the first clamp arm 110 and the second clamp arm 120 to move, thereby separating the first clamp arm 110 and the second clamp arm 120 from the first pole 11.

[0094] In other embodiments, the conductive member 100 includes a torsion spring. One end of the torsion spring is fixedly connected to the first clamping arm 110, and the other end is fixedly connected to the second clamping arm 120. When the restraining member 400 is in the restraining state, the restraining member 400 applies a restraining force to the first clamping arm 110 and the second clamping arm 120, so that the first pole 11 is clamped between the first clamping arm 110 and the second clamping arm 120. At this time, the torsion spring is in a deformed state. When the restraining force disappears, the torsion spring, under the action of its own elastic force, causes the first clamping arm 110 and the second clamping arm 120 to move, thereby separating the first clamping arm 110 and the second clamping arm 120 from the first pole 11.

[0095] As shown in FIG. 8 , in this embodiment, the restraining member 400 includes a fusible connecting section 430 . Specifically, the connecting section 430 may be a fuse.

[0096] When the connecting section 430 is not blown and the restraining member 400 is in a restrained state, the first mounting portion 410 , the connecting section 430 and the second mounting portion 420 are connected in sequence, wherein the first mounting portion 410 and the second mounting portion 420 are connected through the connecting end.

[0097] When the connecting section 430 receives the control signal, it is energized and melted. After the connecting section 430 is energized and melted, the restraining member 400 is in a released state, wherein the first mounting portion 410 and the second mounting portion 420 are disconnected, and the restraining force applied by the restraining member 400 to the conductive member 100 disappears.

[0098] As shown in FIG10 , in another embodiment, the restraining member 400 includes an electromagnet 441. The first mounting portion 410 and the second mounting portion 420 are fixedly connected to the electromagnet 441 on one side, and a magnetic conductive member 442 is fixedly mounted on the other side. The magnetic conductive member 442 is made of a material that can be attracted by a magnet.

[0099] When the electromagnet 441 is energized and the restraining member 400 is in a restrained state, the electromagnet 441 and the magnetic conductive member 442 are magnetically attracted to each other. At this time, the first mounting portion 410 and the second mounting portion 420 are connected through the magnetic attraction between the magnetic conductive member 442 and the electromagnet 441 .

[0100] When the electromagnet 441 receives the control signal, it is de-energized and de-magnetized. After the electromagnet 441 is de-energized and de-magnetized, the restraining member 400 is released. The electromagnet 441 is disconnected from the magnetic conductive member 442, and accordingly, the first mounting portion 410 is disconnected from the second mounting portion 420. Simultaneously, the restraining force exerted by the restraining member 400 on the conductive member 100 is eliminated.

[0101] Since the first mounting portion 410 and the second mounting portion 420 are both insulating members, the switching of the current on the conductive member 100 will not affect the restraining member 400 . Correspondingly, the switching of the current on the restraining member 400 will not affect the charging and discharging of the battery 10 .

[0102] In this embodiment, both the first and second poles 11 and 12 are columnar structures. A recessed portion 101 is provided on each of the first and second clamping arms 110 and 120, and the recessed portion 101 corresponds to the first pole 11. When the restraining member 400 is in the restrained state, the recessed portion 101 can conform to the surface of the pole, thereby achieving surface contact between the first and second clamping arms 110 and 120 and the first pole 11, and achieving a closer fit.

[0103] As shown in FIG9 , the first clamping arm 110 and the second clamping arm 120 each include a first surface 102 and a second surface 103 disposed opposite each other. The first surface 102 is configured to electrically contact the terminal when the restraining member 400 is in the restrained state. The second surface 103 is provided with an insulating layer 104 , which acts as an insulator to prevent accidents caused by fingers or other objects accidentally touching the conductive member 100 during the charging and discharging process of the battery 10.

[0104] Example 2

[0105] The difference between this embodiment and the first embodiment is that this embodiment utilizes a driving device 700 to drive the abnormal battery 10 away from the initial position.

[0106] As shown in FIG11 , in this embodiment, the energy storage device includes a driving device 700 , which is configured to provide a driving force to the battery 10 after the conductive member 10 is separated from the pole, so as to move the battery 10 away from the initial position.

[0107] The driving device 700 includes an elastic member. When the battery 10 is in the initial position, the elastic member is in a deformed state, with one end of the elastic member abutting the battery 10. When the conductive member 100 is separated from the terminal, the elastic member provides elastic force to the battery 10, causing the battery 10 to move away from the initial position.

[0108] The position of the elastic member can be set as needed. In this embodiment, the elastic member abuts the first end 13 of the battery 10. In other embodiments, the elastic member can be set near the second end 14 of the battery 10 and abut against the second end 14.

[0109] Example 3

[0110] The difference between this embodiment and the second embodiment lies in the driving device.

[0111] As shown in Figure 12, in this embodiment, the driving device includes a power module 710, which includes a driving unit 720. When the conductive member 100 is separated from the terminal, the power module 710 drives the driving unit 720 to move linearly, wherein the driving unit 720 applies a force to the battery 10 to move the battery 10 away from the initial position.

[0112] Specifically, the power module 710 may be an electric push rod, a cylinder, etc. When the power module 710 is an electric push rod, the driving part 720 is a push rod; when the power module 710 is a cylinder, the driving part 720 is a piston.

[0113] In this embodiment, the power module 710 is arranged near the first end 13 of the battery 10. When the conductive member 100 is separated from the pole, the driving unit 720 of the power module 710 acts on the first end 13 of the battery 10, thereby causing the battery 10 to leave the initial position.

[0114] In other embodiments, the power module 710 is disposed near the second end 14 of the battery 10. When the conductive member 100 is separated from the pole, the driving unit 720 of the power module 710 acts on the second end 14 of the battery 10, thereby causing the battery 10 to leave its initial position.

[0115] Example 4

[0116] The difference between this embodiment and the second embodiment lies in the driving device.

[0117] As shown in Figure 13, in this embodiment, the drive device includes a power module 710 and a flexible transmission member 730. One end of the flexible transmission member 730 is connected to the battery 10, and the other end is connected to the power module 710. When the conductive member 100 is separated from the terminal, the power module 710 drives the flexible transmission member 730 to reel. The flexible transmission member 730 applies a force to the battery 10, causing the battery 10 to move away from its initial position.

[0118] Specifically, the power module 710 can be a motor, and the flexible transmission member 730 can be a steel wire rope of a certain strength, wherein one end of the flexible transmission member 730 is wound around the output shaft of the motor. Furthermore, the driving device 700 also includes a roller 740, wherein the flexible transmission member 730 is wound around the roller 740.

[0119] The connection position of the flexible transmission member 730 and the battery 10 can be set as needed. In this embodiment, the flexible transmission member 730 can be connected to the second end 14 of the battery 10. In other embodiments, the flexible transmission member 730 can be connected to the first end 13 of the battery 10.

[0120] The installation position of the power module 710 can be set as needed. In this embodiment, the power module 710 can be set near the first end 13 of the battery 10. In other embodiments, the power module 710 can be set near the second end 14 of the battery 10.

[0121] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present 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 can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0122] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An energy storage device, characterized in that: It includes a battery and a protection system acting on the battery; the protection system includes a conductive member, a detection module and a control module; The conductive member is fixedly connected to the pole of the battery and is electrically connected; the conductive member fixes the pole so that the battery is in an initial position; the conductive member is electrically connected to the power supply device or the power consumption device; wherein, The detection module is used to detect parameter information of the battery during charging and discharging; The control module is configured to control the electrical separation between the conductive member and the pole when the parameter information is abnormal; and control the conductive member to release the pole so that the battery leaves the initial position.

2. The energy storage device according to claim 1, characterized in that There are one or more batteries, and the batteries are slidably arranged in the housing; The battery includes a first end and a second end, and the first end and the second end are both provided with the pole; wherein the pole located at the first end is named the first pole, and the pole located at the second end is named the second pole; The conductive member is provided on the first pole and / or the second pole.

3. The energy storage device according to claim 2, characterized in that The height of the first end is higher or lower than the second end, wherein when the conductive member is separated from the pole, the battery leaves the initial position under the action of gravity.

4. The energy storage device according to claim 2, characterized in that The battery further comprises a driving device, which is used to provide a driving force to the battery after the conductive member is separated from the pole, so as to move the battery away from the initial position.

5. The energy storage device according to claim 4, characterized in that The driving device includes an elastic member; when the battery is in the initial position, the elastic member is in a deformed state, and one end of the elastic member abuts against the battery; when the conductive member is separated from the terminal, the elastic member provides an elastic force to the battery to cause the battery to leave the initial position; or The driving device includes a power module, and the power module includes a driving part; when the conductive member is separated from the pole, the power module drives the driving part to move linearly; wherein the driving part applies a force to the battery to cause the battery to leave the initial position; or The driving device includes a power module and a flexible transmission member; one end of the flexible transmission member is connected to the battery, and the other end is connected to the power module; when the conductive member is separated from the pole After separation, the power module drives the flexible transmission member to reel; wherein, the flexible transmission member applies a force to the battery to make the battery leave the initial position.

6. The energy storage device according to claim 1, characterized in that The conductive member is provided with a restraining member; wherein, The restraining member has a restraining state and a releasing state: When in the restrained state, the restraining member is used to apply a restraining force to the conductive member so that the conductive member and the pole are relatively fixed and electrically connected; When in the released state, the restraining member is used to release the restraining force applied to the conductive member when the parameter information is abnormal, so that the conductive member is electrically separated from the pole, and the conductive member loosens the pole so that the battery leaves the initial position.

7. The energy storage device according to claim 6, characterized in that The conductive member includes a first clamping arm and a second clamping arm; two ends of the restraining member are connected to the first clamping arm and the second clamping arm respectively; When the restraining member is in the restraining state, the pole is clamped between the first clamping arm and the second clamping arm, and both the first clamping arm and the second clamping arm are in electrical contact with the pole; When the restraint is in the released state, the first clamp arm and the second clamp arm are electrically separated from the pole, and the first clamp arm and the second clamp arm release the pole.

8. The energy storage device according to claim 7, characterized in that: The first clamping arm includes a first connecting end and a first free end, and the second clamping arm includes a second connecting end and a second free end; The restraining member includes a first mounting portion and a second mounting portion, the first mounting portion is used to connect to the first free end, and the second mounting portion is used to connect to the second free end; When the restraining member is in the restraining state, the first mounting portion and the second mounting portion are connected; when the restraining member is in the releasing state, the first mounting portion and the second mounting portion are disconnected; The conductive member also includes a connecting portion, to which the first connecting end and the second connecting end are both connected; the connecting portion is used to provide a force to the first clamping arm and the second clamping arm when the restraining member is in a released state, so that the first clamping arm and the second clamping arm are separated from the pole.

9. The energy storage device according to claim 8, characterized in that The restraint member includes a fusible connecting section; when the connecting section is not fused, the restraint member is in the restrained state, wherein the first mounting portion, the connecting section and the second mounting portion are connected in sequence; after the connecting section is energized and fused, the restraint member is in the released state; or The restraining member includes an electromagnet; among the first mounting part and the second mounting part, one is fixedly connected to the electromagnet, and the other is fixedly provided with a magnetic conductive part; when the electromagnet is energized, the restraining member is in the restrained state, wherein the electromagnet and the magnetic conductive part are magnetically attracted to each other; after the electromagnet is powered off and loses magnetism, the restraining member is in the released state, wherein the electromagnet is disconnected from the magnetic conductive part.

10. The energy storage device according to claim 1, characterized in that The protection system further includes an alarm device, wherein the alarm device is configured to send an alarm signal when the parameter information is abnormal.

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