Data storage device and energy storage equipment

Abstract

The utility model provides a data storage device and energy storage equipment. The data storage device is applied to the energy storage equipment. A data storage device includes a refractory thermally insulating shell and a data storage member. The fireproof heat insulation shell is provided with a wire outlet channel. The wire outlet channel is communicated with the inside and the outside of the fireproof heat-insulating shell. The fireproof heat insulation shell is an aluminum silicate shell. The data storage piece comprises a chip module and an electric connecting wire. And the chip module is arranged in the fire-resistant heat-insulating shell. And the outer side of the chip module is coated with waterproof glue. And the electric connecting wire is connected with the chip module. And the electric connecting wire extends out of the fire-resistant heat-insulating shell through the wire outlet channel. According to the data storage device and the energy storage equipment provided by the invention, the safety of the chip module for storing data under the influence of fire and fire extinguishing liquid can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage devices, and particularly relates to a data storage device and an energy storage device. BACKGROUND

[0002] In some cases, the energy storage device may have a thermal runaway phenomenon, causing a fire explosion in the device. The data storage chip in the device may fail under the dual influence of the fire and the fire extinguishing liquid, causing the device operation data before the thermal runaway to be unable to be restored later, which is not conducive to the subsequent analysis of the accident. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a data storage device and an energy storage device, which can improve the safety of the chip module storing data under the influence of the fire and the fire extinguishing liquid.

[0004] An embodiment of the present application provides a data storage device applied to an energy storage device. The data storage device comprises a fireproof and heat-insulating shell and a data storage element. The fireproof and heat-insulating shell is provided with a wire outlet passage. The wire outlet passage is connected to the inside and outside of the fireproof and heat-insulating shell. The fireproof and heat-insulating shell is an aluminum silicate shell. The data storage element comprises a chip module and an electric connection wire. The chip module is arranged in the fireproof and heat-insulating shell. The outer side of the chip module is coated with waterproof glue. The electric connection wire is connected to the chip module. The electric connection wire extends to the outside of the fireproof and heat-insulating shell through the wire outlet passage.

[0005] The chip module is connected to the battery management device of the energy storage device through the electric connection wire to record the operation data of the energy storage device. The chip module is coated with waterproof glue to prevent the fire extinguishing liquid from contacting the chip module. The fireproof and heat-insulating shell uses the aluminum silicate shell, so that the fireproof and heat-insulating shell can block the fire and heat from entering the inside. On the one hand, it is conducive to avoiding damage to the chip module caused by the fire or high temperature, and on the other hand, it can reduce the influence of the fire or high temperature on the waterproof glue to maintain the waterproof effect of the waterproof glue, so that the chip module is double-protected.

[0006] In some embodiments of the present application, the fireproof and heat-insulating shell comprises a shell body, a shell cover and a connecting piece. The shell body or the shell cover is provided with a wire outlet passage. The chip module is arranged in the shell body. The connecting piece connects the shell body and the shell cover to seal the shell body and the shell cover.

[0007] The form that the shell cover is arranged on the shell body is convenient for disassembly and assembly, and facilitates the arrangement of the chip module in the fireproof and heat-insulating shell. By arranging the connecting piece, the sealing property between the shell body and the shell cover is improved, which is conducive to preventing the fire or high-temperature gas and high-temperature liquid from entering the fireproof and heat-insulating shell through the gap between the shell body and the shell cover, so as to improve the fireproof, heat-insulating and waterproof effects of the fireproof and heat-insulating shell.

[0008] In some embodiments of the present application, the shell body is provided with a fixing part. The fixing part is connected to the chip module to relatively fix the chip module relative to the shell body.

[0009] The chip module can be fixed in the fireproof and heat-insulating shell through the fixing part, which is beneficial to avoiding damage of the chip module and reducing the shaking of the electric connection line to avoid affecting the structure at the wire outlet passage, so as to maintain the fireproof, heat-insulating and waterproof effects of the fireproof and heat-insulating shell at the wire outlet passage.

[0010] In some embodiments of the present application, the fixing part is configured as a slot. The chip module is inserted into the slot.

[0011] The chip module is fixed in the fireproof and heat-insulating shell by being inserted into the slot, which is simple and convenient to assemble.

[0012] In some embodiments of the present application, the shell cover is provided with an embedded part. The embedded part is embedded into the shell body.

[0013] By providing the embedded part, the sealing effect between the shell cover and the shell body is improved, so as to improve the fireproof, heat-insulating and waterproof effects of the fireproof and heat-insulating shell.

[0014] In some embodiments of the present application, the embedded part abuts against the chip module to stop the movement of the chip module relative to the shell body.

[0015] The embedded part improves the stability of the fixation of the chip module relative to the fireproof and heat-insulating shell, which is beneficial to avoiding damage of the chip module and reducing the shaking of the electric connection line to avoid affecting the structure at the wire outlet passage, so as to maintain the fireproof, heat-insulating and waterproof effects of the fireproof and heat-insulating shell at the wire outlet passage.

[0016] In some embodiments of the present application, the joint between the shell body and the shell cover is glued.

[0017] The joint between the shell body and the shell cover is glued to improve the sealing between the shell body and the shell cover, so as to improve the fireproof, heat-insulating and waterproof effects of the fireproof and heat-insulating shell.

[0018] In some embodiments of the present application, the data storage device further comprises a fireproof and heat-insulating plug. The fireproof and heat-insulating plug is arranged at the wire outlet passage. The electric connection line passes through the fireproof and heat-insulating plug and extends to the outside of the fireproof and heat-insulating shell.

[0019] By providing the fireproof and heat-insulating plug, the fireproof and heat-insulating effects at the wire outlet passage are improved, which is beneficial to avoiding damage of the chip module caused by fire or high temperature entering the inside of the fireproof and heat-insulating shell through the wire outlet passage.

[0020] In some embodiments of the present application, the joint between the fireproof and heat-insulating plug and the fireproof and heat-insulating shell is glued.

[0021] The joint between the fireproof and heat-insulating plug and the fireproof and heat-insulating shell is glued to improve the sealing at the wire outlet passage, so as to improve the fireproof, heat-insulating and waterproof effects of the fireproof and heat-insulating shell.

[0022] An embodiment of the present application provides a kind of energy storage equipment. Energy storage equipment includes equipment shell, battery module, battery management device and the data storage device as any one of the above embodiments. Battery module and battery management module are electrically connected, and are all arranged in equipment shell. Data storage device electric connection line and battery management device are connected, so that chip module records the operation data of battery management device.

[0023] Chip module is connected with battery management device through electric connection line, to record the operation data of energy storage equipment. And chip module is arranged in fireproof heat insulation shell, to reduce the influence of fire and fire extinguishing liquid, so that chip module can restore the operation data of energy storage equipment, to facilitate the review of accident reason. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope.

[0025] Figure 1 The structural schematic diagram of energy storage equipment is provided for an embodiment of the present application.

[0026] Figure 2 For Figure 1 The explosion schematic diagram of energy storage equipment is provided for an embodiment of the present application.

[0027] Figure 3 For Figure 2 The sectional view schematic diagram of partial structure of A-A section is provided for an embodiment of the present application.

[0028] Figure 4 For Figure 3 The structural schematic diagram of data storage device is provided for an embodiment of the present application.

[0029] Figure 5 For Figure 4 The explosion schematic diagram of data storage device is provided for an embodiment of the present application.

[0030] Figure 6 For Figure 4 The sectional view schematic diagram of B-B section is provided for an embodiment of the present application.

[0031] Main element symbol explanation

[0032] 100-data storage device; 200-energy storage equipment;

[0033] 10-fireproof heat insulation shell; 11-outlet passage; 12-shell body; 13-shell cover; 14-connector; 20-data storage element; 21-chip module; 22-electric connection line; 30-fireproof heat insulation plug;

[0034] 121 - fixing portion; 131 - embedding portion; 201 - device housing; 202 - battery module; 203 - battery management device. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0037] In some cases, the energy storage device can have a thermal runaway phenomenon, causing a fire and explosion in the device. The data storage chip in the device can fail under the dual influence of fire and fire extinguishing liquid, making it impossible to restore the device operation data before the thermal runaway, which is not conducive to the post-mortem of the accident.

[0038] The embodiments of the present application provide a data storage device applied to an energy storage device. The data storage device includes a fireproof and heat-insulating shell and a data storage member. The fireproof and heat-insulating shell is provided with a wire outlet passage. The wire outlet passage communicates the inside and outside of the fireproof and heat-insulating shell. The fireproof and heat-insulating shell is an aluminum silicate shell. The data storage member includes a chip module and an electric connection wire. The chip module is arranged in the fireproof and heat-insulating shell. The outer side of the chip module is coated with waterproof glue. The electric connection wire is connected with the chip module. The electric connection wire extends to the outside of the fireproof and heat-insulating shell through the wire outlet passage.

[0039] The chip module is connected with the battery management device of the energy storage device through the electric connection wire to record the operation data of the energy storage device. The chip module is coated with waterproof glue to prevent the fire extinguishing liquid from contacting the chip module. The fireproof and heat-insulating shell uses an aluminum silicate shell, so that the fireproof and heat-insulating shell can block the fire and heat from entering the inside. On the one hand, it is beneficial to avoid damage to the chip module caused by fire or high temperature, and on the other hand, it can reduce the influence of fire or high temperature on the waterproof glue to maintain the waterproof effect of the waterproof glue, so that the chip module is double protected.

[0040] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the embodiments described below and the features in the embodiments can be combined with each other.

[0041] Referring to Figures 1 to 3 An embodiment of the present application provides a data storage device 100 and an energy storage device 200.

[0042] In some embodiments, the energy storage device 200 is capable of storing and discharging electricity for home backup power, industrial backup power, outdoor work, outdoor entertainment, etc. The data storage device 100 is used to record the operation data of the energy storage device 200.

[0043] In some embodiments, the energy storage device 200 comprises a device housing 201, a battery module 202, and a battery management device 203. The battery module 202 and the battery management device 203 are electrically connected and are both arranged in the device housing 201. For example, the battery management device 203 can be a BMS (Battery Management System) board.

[0044] In some embodiments, the energy storage device 200 further comprises a power conversion module (not shown in the figure). The power conversion module is electrically connected to the battery module 202, and the power conversion module is used to realize AC / DC conversion control of the output current of the battery module 202. The energy storage device 200 provided with the power conversion module can be a small portable power supply, a household energy storage power supply, an industrial and commercial energy storage power supply, or a container type energy storage power supply, etc.

[0045] In some embodiments, the power conversion module can be omitted. The energy storage device 200 without the power conversion module can be used independently. The energy storage device 200 without the power conversion module can usually only output DC power. When the energy storage device 200 without the power conversion module is used independently, it can be used in coordination with the energy storage device 200 provided with the power conversion module as a power supply system providing additional battery capacity.

[0046] Referring to Figure 3 and Figure 4 In some embodiments, the energy storage device 200 further comprises a data storage device 100. The data storage device 100 is arranged in the device housing 201 and is connected to the battery management device 203. For example, the data storage device 100 and the battery management device 203 are both arranged in the housing of the battery module 202, the data storage device 100 is located beside the battery cell of the battery module 202, and avoids the spray valve path of the battery cell, wherein, Figure 3 The structure indicated by the reference numeral of the battery module 202 in the above is the battery cell of the battery module 202.

[0047] Referring to Figures 3 to 5In some embodiments, the data storage device 100 comprises a fireproof and heat-insulated shell 10 and a data storage component 20. The fireproof and heat-insulated shell 10 is provided with an outlet passage 11. The outlet passage 11 communicates the interior and the exterior of the fireproof and heat-insulated shell 10. The fireproof and heat-insulated shell 10 is an aluminum silicate shell. The data storage component 20 comprises a chip module 21 and an electric connecting wire 22. The chip module 21 is arranged in the fireproof and heat-insulated shell 10. The chip module 21 is coated with waterproof glue (not shown in the figure) on the outside. The electric connecting wire 22 is connected with the chip module 21. The electric connecting wire 22 extends out of the fireproof and heat-insulated shell 10 through the outlet passage 11.

[0048] The chip module 21 is connected with the battery management device 203 through the electric connecting wire 22 to record the operation data of the energy storage device 200, in particular, the operation data of the battery module 202 and the battery management device 203. The chip module 21 is coated with waterproof glue to prevent the chip module 21 from being contacted by fire-fighting liquid. The fireproof and heat-insulated shell 10 is made of an aluminum silicate shell, which can block the fire and heat from entering the interior, on the one hand, to avoid damage to the chip module 21 caused by fire or high temperature, and on the other hand, to reduce the influence of fire or high temperature on the waterproof glue to maintain the waterproof effect of the waterproof glue, so that the chip module 21 is double-protected and can restore the operation data of the energy storage device 200, thereby facilitating the review of the accident cause.

[0049] The fireproof and heat-insulated shell 10 is made of aluminum silicate material, which has high melting point and low thermal conductivity, so that it can still maintain high stability under fire or high temperature and reduce the heat transfer inward.

[0050] The electric connecting wire 22 connects the chip module 21 and the battery management device 203, on the one hand, to enable the battery management device 203 to supply power to the chip module 21 to start the chip module 21 to work, and on the other hand, to enable the battery management device 203 to communicate with the chip module 21 to enable the chip module 21 to receive and store data information.

[0051] It can be understood that in some embodiments, the waterproof glue is injected into the fireproof and heat-insulated shell 10 to wrap the chip module 21, thereby improving the waterproof effect and the stability of the fixation of the chip module 21 relative to the fireproof and heat-insulated shell 10. For example, the waterproof glue can be organic silicon waterproof glue.

[0052] It can be understood that in some embodiments, the chip module 21 and the fireproof and heat-insulated shell 10 are arranged with a part of the positions spaced apart to form a separation space, which reduces the contact between the fireproof and heat-insulated shell 10 and the chip module 21, increases the difficulty of heat transfer from the fireproof and heat-insulated shell 10 to the chip module 21, and improves the heat insulation effect on the chip module 31.

[0053] It is appreciated that in some embodiments, the partitioned space is configured to form a negative pressure compared to the atmospheric pressure, so as to improve the heat insulation effect.

[0054] Referring to Figure 4 and Figure 5 In some embodiments, the fireproof and heat-insulating shell 10 comprises a shell body 12 and a shell cover 13. The shell body 12 or the shell cover 13 is provided with a wire outlet passage 11. The shell cover 13 covers the shell body 12. The chip module 21 is arranged in the shell body 12, which is convenient for disassembly and assembly of the chip module 21 in the fireproof and heat-insulating shell 10.

[0055] In some embodiments, the shell body 12 is provided with a fixing part 121. The fixing part 121 is connected with the chip module 21, so that the chip module 21 is relatively fixed with respect to the shell body 12. The chip module 21 can be relatively fixed in the fireproof and heat-insulating shell 10 through the fixing part 121, which is beneficial to avoid damage of the chip module 21 and reduce the shaking of the electric connection wire 22 to avoid affecting the structure at the wire outlet passage 11, so as to maintain the fireproof, heat-insulating and waterproof effects of the fireproof and heat-insulating shell 10 at the wire outlet passage 11.

[0056] In some embodiments, the fixing part 121 is configured as a slot. The chip module 21 is inserted into the slot. The chip module 21 is fixed in the fireproof and heat-insulating shell 10 by being inserted into the slot, which is simple and convenient for assembly. In other embodiments, the fixing part 121 can fix the chip module 21 by setting screws or buckle structures.

[0057] Referring to Figure 4 and Figure 6 In some embodiments, the shell cover 13 is provided with an embedding part 131. The embedding part 131 is embedded into the shell body 12. By setting the embedding part 131, the sealing effect between the shell cover 13 and the shell body 12 is improved, so as to improve the fireproof, heat-insulating and waterproof effects of the fireproof and heat-insulating shell 10.

[0058] It is appreciated that in some embodiments, the embedding part 131 is a plurality of protrusions protruding from the side of the shell cover 13 facing the shell body 12. When the shell cover 13 covers the shell body 12, the protrusions abut the inner side wall of the shell body 12, so that the shell cover 13 and the shell body 12 generate a large friction to make the shell cover 13 stably cover the shell body 12, thereby maintaining the sealing of the shell cover 13 and the shell body 12.

[0059] It is appreciated that in some embodiments, the plurality of protrusions are spaced apart from each other, so as to generate deformation and reduce the difficulty of embedding the shell body 12, thereby facilitating the covering of the shell cover 13 on the shell body 12.

[0060] In some embodiments, the embedding portion 131 abuts against the chip module 21 to stop the chip module 21 from moving relative to the shell body 12. The embedding portion 131 improves the stability of the chip module 21 fixed relative to the fireproof and heatproof shell 10, which is beneficial to avoid the chip module 21 from being damaged and reduce the shaking of the electric connection wire 22 to avoid affecting the structure at the wire outlet passage 11, so as to maintain the fireproof, heatproof and waterproof effects of the fireproof and heatproof shell 10 at the wire outlet passage 11.

[0061] In some embodiments, the joint between the shell body 12 and the shell cover 13 is bonded by a fireproof and heatproof adhesive. The joint between the shell body 12 and the shell cover 13 is bonded to improve the sealing between the shell body 12 and the shell cover 13, so as to improve the fireproof, heatproof and waterproof effects of the fireproof and heatproof shell 10.

[0062] Referring to Figure 4 and Figure 5 In some embodiments, the fireproof and heatproof shell 10 further comprises a connecting member 14. The connecting member 14 connects the shell body 12 and the shell cover 13 to seal the shell body 12 and the shell cover 13. By providing the connecting member 14, the sealing between the shell body 12 and the shell cover 13 is improved, which is beneficial to prevent fire or high-temperature gas and high-temperature liquid from entering the fireproof and heatproof shell 10 through the gap between the shell body 12 and the shell cover 13, so as to improve the fireproof, heatproof and waterproof effects of the fireproof and heatproof shell 10.

[0063] It can be understood that, in some embodiments, the connecting member 14 is a bolt or screw structure. The connecting member 14 is threadedly connected to the shell body 12 after penetrating through the shell cover 13, so as to fix the shell cover 13 to the shell body 12 and improve the sealing between the shell cover 13 and the shell body 12, and enable the shell cover 13 and the shell body 12 to be stably and tightly connected.

[0064] It can be understood that, in some embodiments, the connecting member 14 is a claw structure (not shown in the figure) that can be elastically deformed relative to the shell body 12 or can rotate relative to the shell body 12. The connecting member 14 is hooked on the side of the shell cover 13 away from the shell body 12, so as to fix the shell cover 13 to the shell body 12 and improve the sealing between the shell cover 13 and the shell body 12, and facilitate the mutual disassembly of the shell cover 13 and the shell body 12.

[0065] It can be understood that, in some embodiments, the connecting member 14 is a rope-like structure (not shown in the figure). The connecting member is tied around the outer periphery of the shell cover 13 and the shell body 12, so as to fix the shell cover 13 to the shell body 12 and improve the sealing between the shell cover 13 and the shell body 12. On the one hand, the connecting member 14 has a low assembly difficulty, and on the other hand, the connecting member 14 can be adjusted in thickness of the tie to adapt to different shapes and sizes of the fireproof and heatproof shell 10.

[0066] It can be understood that, in some embodiments, the connecting member 14 is a hoop structure (not shown in the figure). The connecting member 14 is hoop-tied to the outer periphery of the shell cover 13 and the shell body 12, so as to fix the shell cover 13 to the shell body 12 and improve the sealing between the shell cover 13 and the shell body 12. The hoop structure fixes the size of the connecting member 14 itself and has good deformation resistance, so that the connecting member 14 can be stably fixed on the outside of the fireproof and heat-insulating shell 10, which is conducive to reducing the possibility of the shell body 12 and the shell cover 13 being separated, so as to maintain the fireproof and heat-insulating effect.

[0067] In other embodiments, the connecting member 14 can be omitted, and the shell cover 13 and the shell body 12 are directly connected by screwing; or the shell cover 13 and the shell body 12 are directly connected by the convex-concave matching of the protrusions and the grooves.

[0068] Referring to Figures 4 to 6 In some embodiments, the data storage device 100 further comprises a fireproof and heat-insulating plug 30. The fireproof and heat-insulating plug 30 is arranged in the wire outlet passage 11. The electric connecting wire 22 extends out of the fireproof and heat-insulating shell 10 through the fireproof and heat-insulating plug 30.

[0069] By arranging the fireproof and heat-insulating plug 30, the fireproof and heat-insulating effect at the wire outlet passage 11 is improved, which is conducive to avoiding the damage of the chip module 21 caused by the fire or high temperature entering the inside of the fireproof and heat-insulating shell 10 through the wire outlet passage 11.

[0070] In some embodiments, the junction between the fireproof and heat-insulating plug 30 and the fireproof and heat-insulating shell 10 is bonded by fireproof and heat-resistant adhesive. The junction between the fireproof and heat-insulating plug 30 and the fireproof and heat-insulating shell 10 is bonded to improve the sealing at the wire outlet passage 11, so as to improve the fireproof, heat-insulating and waterproof effects of the fireproof and heat-insulating shell 10.

[0071] It can be understood that, in some embodiments, the adhesive bonded between the shell body 12 and the shell cover 11 of the fireproof and heat-insulating shell 10 and between the fireproof and heat-insulating plug 30 and the fireproof and heat-insulating shell 10 is high-temperature-resistant inorganic sealant. The inorganic adhesive has excellent thermal stability and degradation resistance, so as to maintain its performance at the temperature after the battery module 202 burns. Exemplarily, the high-temperature-resistant inorganic sealant includes alumina adhesive, silane coupling agent and fluorocarbon resin adhesive.

[0072] In addition, those skilled in the art should understand that the above embodiments are only used to illustrate the present application, but not as a limitation to the present application. Any appropriate changes and modifications made to the above embodiments within the spirit and principles of the present application fall within the scope of the present application.

Claims

1. A data storage device applied to an energy storage device, characterized in that, The data storage device comprises: a fireproof and heat-insulating shell provided with a wire outlet channel, the wire outlet channel being in communication with the inside and outside of the fireproof and heat-insulating shell, the fireproof and heat-insulating shell being an aluminum silicate shell; a data storage element comprising a chip module and an electric connecting wire, the chip module being arranged in the fireproof and heat-insulating shell, the chip module being coated with waterproof glue on the outside, the electric connecting wire being connected with the chip module, and the electric connecting wire extending out of the fireproof and heat-insulating shell through the wire outlet channel.

2. The data storage device of claim 1, wherein, The fireproof and heat-insulating shell comprises a shell body, a shell cover and a connecting element, the shell body or the shell cover is provided with the wire outlet channel, the chip module is arranged in the shell body, and the connecting element connects the shell body and the shell cover to seal the shell body and the shell cover.

3. The data storage device of claim 2, wherein, The shell body is provided with a fixing part, the fixing part is connected with the chip module to relatively fix the chip module relative to the shell body.

4. The data storage device of claim 3, wherein, The fixing part is configured as a slot, and the chip module is inserted into the slot.

5. The data storage device of claim 2, wherein, The shell cover is provided with an embedding part, and the embedding part is embedded into the shell body.

6. The data storage device of claim 5, wherein, The embedding part abuts against the chip module to stop the movement of the chip module relative to the shell body.

7. The data storage device of claim 2, wherein, The joint of the shell body and the shell cover is glued.

8. The data storage device of any of claims 1 to 7, wherein, The data storage device further comprises a fireproof and heat-insulating plug, the fireproof and heat-insulating plug is arranged in the wire outlet channel, and the electric connecting wire extends out of the fireproof and heat-insulating shell through the fireproof and heat-insulating plug.

9. The data storage device of claim 8, wherein, The joint of the fireproof and heat-insulating plug and the fireproof and heat-insulating shell is glued.

10. An energy storage device, characterized by, The energy storage device comprises a device shell, a battery module, a battery management device and the data storage device according to any one of claims 1 to 9, the battery module and the battery management device are electrically connected and arranged in the device shell, and the electric connecting wire is connected with the battery management device, so that the chip module records the operation data of the battery management device.

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