Circuit board assembly and energy storage device

Abstract

The embodiment of the utility model relates to the technical field of energy storage, and particularly discloses a circuit board assembly and energy storage equipment, the circuit board assembly is applied to the energy storage equipment, and the circuit board assembly comprises a main control board, a main board plug-in module, a function board and a function plug-in module; the main board plug-in module is arranged on the main control board; the function plug-in module is arranged on the function board, and the mainboard plug-in module is connected with the function plug-in module in a plug-in mode so that the function board can be electrically connected with the main control board. Through the above mode, the circuit board assembly provided by the embodiment of the utility model can realize modularization through a plugging connection mode, and replaces a wire connection mode of a traditional circuit board assembly, thereby reducing wiring of the circuit board assembly, and improving the reliability of the circuit board assembly. And the problem that the requirements of safety regulation, electromagnetic compatibility, heat dissipation, assembly, test, maintenance and the like are difficult to meet due to wire winding and wire crossing is avoided, so that the potential safety hazard is reduced.

Description

Technical Field

[0001] The embodiments of the present utility model relate to the technical field of energy storage, and particularly to a circuit board assembly and an energy storage device. Background Art

[0002] An energy storage device refers to a device that can store and release energy. The main function of the energy storage device is to store excess electric energy so as to release electric energy when the power supply is insufficient to provide power support.

[0003] Currently, energy storage devices are developing towards miniaturization, resulting in higher and higher space utilization rates inside the energy storage devices. In order to make the energy storage device meet the requirements in terms of safety regulations, electromagnetic compatibility, heat dissipation, assembly, testing, and maintenance, etc., the circuit board of the energy storage device is usually divided into a circuit board assembly composed of multiple circuit boards to control and manage the energy storage device. However, for a circuit board assembly composed of multiple circuit boards, it generally uses wires for connection, resulting in the wires being wound and arranged inside the energy storage device, easily making the internal wiring of the energy storage device messy, making it difficult for the energy storage device to meet the requirements in terms of safety regulations, electromagnetic compatibility, heat dissipation, assembly, testing, and maintenance, etc., and there are great potential safety hazards. Summary of the Utility Model

[0004] The main technical problem to be solved by the embodiments of the present utility model is to provide a circuit board assembly and an energy storage device, which can reduce wiring and reduce potential safety hazards.

[0005] To solve the above technical problem, a technical solution adopted by the embodiments of the present utility model is: to provide a circuit board assembly applied to an energy storage device, including a main control board, a main board plug-in module, a function board, and a function plug-in module; the main board plug-in module is arranged on the main control board; the function plug-in module is arranged on the function board, and the main board plug-in module is plugged with the function plug-in module to electrically connect the function board with the main control board.

[0006] Optionally, the function board includes a BMS board; the main board plug-in module includes a first main board plug-in part arranged on the main control board; the function plug-in module includes a first function plug-in part, the first function plug-in part is arranged on the BMS board, and the first function plug-in part is plugged with the first main board plug-in part to electrically connect the BMS board with the main control board.

[0007] Optionally, the function plug-in module further includes a power plug-in part, the power plug-in part is arranged on the BMS board, and the power plug-in part is used for plugging with the battery cell assembly of the energy storage device.

[0008] Optionally, the functional board further includes an adapter board and a panel, and the panel is electrically connected to the adapter board; the main board plugging module further includes a second main board plugging member disposed on the main control board; the functional plugging module further includes a second functional plugging member disposed on the adapter board, and the second functional plugging member is plugged into the second main board plugging member to electrically connect the adapter board to the main control board.

[0009] Optionally, the functional plugging module further includes a third functional plugging member and a fourth functional plugging member. The third functional plugging member is disposed on the adapter board, and the fourth functional plugging member is disposed on the panel. The third functional plugging member is plugged into the fourth functional plugging member to electrically connect the panel to the adapter board.

[0010] Optionally, the functional board further includes an AC output board; the main board plugging module further includes a third main board plugging member disposed on the main control board; the functional plugging module further includes a fifth functional plugging member disposed on the AC output board, and the fifth functional plugging member is plugged into the third main board plugging member to electrically connect the AC output board to the main control board.

[0011] Optionally, the first main board plugging member is located on one surface of the main control board, and the second main board plugging member and the third main board plugging member are located on the opposite surface of the main control board, so that the BMS board is located on one side of the main control board, and the adapter board, the panel and the AC output board are located on the opposite side of the main control board.

[0012] Optionally, the functional board further includes a shielding board detachably connected to the main control board; and / or the functional board further includes a control board detachably connected to the main control board.

[0013] To solve the above technical problems, another technical solution adopted in the embodiments of the present invention is: to provide an energy storage device, including a housing, a battery cell assembly and the above circuit board assembly; the housing includes an upper shell, a lower shell and a face cover. The upper shell is detachably connected to the lower shell. The upper shell and the lower shell jointly enclose a receiving cavity and an opening. The opening communicates with the receiving cavity. The face cover is detachably connected to the upper shell and the lower shell, and the face cover covers the opening; the battery cell assembly includes a frame, a plurality of battery cells and power terminals. The frame is fixed in the receiving cavity. The plurality of battery cells are disposed in the frame. The power terminals are disposed on the frame, and the power terminals are electrically connected to the plurality of battery cells; the circuit board assembly is received in the receiving cavity, and the BMS board of the circuit board assembly is connected to the power terminals.

[0014] Optionally, a plurality of first screw holes are provided on the inner surface of the lower case, and a plurality of second screw holes are provided on the frame; a plurality of third screw holes are provided on the adapter board of the circuit board assembly, and a plurality of fourth screw holes are provided on the main control board of the circuit board assembly; the energy storage device further includes a plurality of first screw connectors and a plurality of second screw connectors. A first screw connector penetrates through a third screw hole and extends into a first screw hole, and the first screw connector is screwed to the third screw hole and the first screw hole respectively, so that the adapter board is fixed to the lower case. A second screw connector penetrates through a fourth screw hole and extends into a second screw hole, and the second screw connector is screwed to the fourth screw hole and the second screw hole respectively, so that the main control board is fixed to the frame.

[0015] The beneficial effects of the embodiments of the present invention are as follows: Different from the prior art, the embodiments of the present invention provide a circuit board assembly applied to an energy storage device, which includes a main control board, a main board plug-in module, a function board, and a function plug-in module; the main board plug-in module is arranged on the main control board; the function plug-in module is arranged on the function board, and the main board plug-in module is plugged into the function plug-in module so that the function board is electrically connected to the main control board. In this way, the circuit board assembly of the embodiments of the present invention can be modularized by plugging, replacing the traditional wire connection method of the circuit board assembly, thereby reducing the wiring of the circuit board assembly and avoiding the difficulties in meeting the requirements of safety regulations, electromagnetic compatibility, heat dissipation, assembly, testing, and maintenance caused by wire entanglement and wire crossing, thus reducing potential safety hazards. At the same time, the circuit board assembly is modularized by plugging, which helps to reduce the volume of the circuit board assembly and the space occupancy rate of the circuit board assembly. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 is a schematic structural diagram of the circuit board assembly provided by the embodiments of the present invention Figure 1 ;

[0018] Figure 2 is a schematic structural diagram of the circuit board assembly provided by the embodiments of the present invention Figure 2 ;

[0019] Figure 3 is a front structural schematic diagram of the main control board of the circuit board assembly provided by the embodiments of the present invention;

[0020] Figure 4It is a schematic diagram of the back structure of the main control board of the circuit board assembly provided by the embodiment of the present utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the BMS board of the circuit board assembly provided by the embodiment of the present utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the adapter board of the circuit board assembly provided by the embodiment of the present utility model;

[0023] Figure 7 It is a schematic diagram of the structure of the panel of the circuit board assembly provided by the embodiment of the present utility model;

[0024] Figure 8 It is a schematic diagram of the structure of the AC output board of the circuit board assembly provided by the embodiment of the present utility model;

[0025] Figure 9 It is a schematic diagram of the structure of the energy storage device provided by the embodiment of the present utility model Figure 1 ;

[0026] Figure 10 It is a schematic diagram of the structure of the energy storage device provided by the embodiment of the present utility model Figure 2 。

[0027] Explanation of reference numerals:

[0028] 1 Main control board, 11 Fourth screw hole;

[0029] 21 First main board connector, 22 Second main board connector, 23 Third main board connector;

[0030] 3 Function board, 31 BMS board, 32 Adapter board, 321 Third screw hole, 33 Panel, 34 AC output board, 35 Shielding board, 36 Control board;

[0031] 41 First function connector, 42 Power supply connector, 43 Second function connector, 44 Third function connector, 45 Fourth function connector, 46 Fifth function connector;

[0032] 51 Upper shell, 52 Lower shell, 521 First screw hole, 53 Face cover;

[0033] 61 Frame, 611 Second screw hole, 612 Upper frame, 6121 Bayonet, 613 Lower frame, 6131 Snap, 62 Battery cell, 63 Power terminal;

[0034] 7 First screw connector;

[0035] 8 Second screw connector. Detailed implementation manners

[0036] For the convenience of understanding the present utility model, the present utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is expressed as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is expressed as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. The terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 cannot be construed as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0037] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in this specification in the description of the present utility model are only for the purpose of describing specific embodiments and are not used to limit the present utility model. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0038] An energy storage device refers to a device that can store and release energy. The main function of the energy storage device is to store excess electric energy so as to release electric energy in case of insufficient power supply to provide power support.

[0039] At present, energy storage devices are developing towards miniaturization, resulting in higher and higher space utilization rate inside the energy storage devices. In order to make the energy storage devices meet the requirements in terms of safety regulations, electromagnetic compatibility, heat dissipation, assembly, testing and maintenance, etc., the circuit boards of the energy storage devices are usually divided into circuit board assemblies composed of multiple circuit boards to control and manage the energy storage devices. However, for the circuit board assemblies composed of multiple circuit boards, they are generally connected by wires, resulting in the wires being wound and arranged inside the energy storage devices, which easily makes the internal wiring of the energy storage devices messy, making it difficult for the energy storage devices to meet the requirements in terms of safety regulations, electromagnetic compatibility, heat dissipation, assembly, testing and maintenance, etc., and there are great potential safety hazards.

[0040] Based on this, please refer to Figure 1 and Figure 2, the present utility model provides an embodiment of a circuit board assembly. The circuit board assembly is applied to an energy storage device and includes a main control board 1, a main board plug-in module, a functional board 3, and a functional plug-in module; the main board plug-in module is disposed on the main control board 1; the functional plug-in module is disposed on the functional board 3, and the main board plug-in module is plugged into the functional plug-in module to electrically connect the functional board 3 to the main control board 1.

[0041] In the above manner, the circuit board assembly can be modularized by plugging connection, replacing the wire connection method of the traditional circuit board assembly, thereby reducing the wiring of the circuit board assembly and avoiding the difficulties in meeting the requirements of safety regulations, electromagnetic compatibility, heat dissipation, assembly, testing, and maintenance caused by wire entanglement and wire crossing, thus reducing potential safety hazards. At the same time, the circuit board assembly is modularized by plugging connection, which helps to reduce the volume of the circuit board assembly and the space occupancy rate of the circuit board assembly. In addition, through the plugging connection method, the circuit board assembly can facilitate the disassembly and assembly of the functional board 3 relative to the main control board 1, reduce the complexity and time of disassembly and assembly, and contribute to the maintenance of the main control board 1 and the functional board 3.

[0042] For the above circuit board assembly, please refer to Figure 2 , and please also refer to Figures 3 to 5 , the functional board 3 includes a BMS board 31 (battery management system board); the main board plug-in module includes a first main board plug-in member 21 disposed on the main control board 1; the functional plug-in module includes a first functional plug-in member 41, the first functional plug-in member 41 is disposed on the BMS board 31, and the first functional plug-in member 41 is plugged into the first main board plug-in member 21 to electrically connect the BMS board 31 to the main control board 1.

[0043] For the above first main board plug-in member 21 and the first functional plug-in member 41, in some embodiments, one of the first main board plug-in member 21 and the first functional plug-in member 41 is a male plug-in terminal, and the other of the first main board plug-in member 21 and the first functional plug-in member 41 is a female plug-in terminal.

[0044] Regarding the above-mentioned first main board connector 21 and first functional connector 41, it can be understood that the first main board connector 21 and the first functional connector 41 include, but are not limited to, a male-female plugging structure. For example, in some other embodiments, the first main board connector 21 and the first functional connector 41 are a pin-hole plugging structure, one of the first main board connector 21 and the first functional connector 41 is a plugging pin, and the other of the first main board connector 21 and the first functional connector 41 is a jack. When the plugging pin is inserted into the jack, the plugging pin automatically contacts and conducts with the contacts inside the jack; or, in some other embodiments, the first main board connector 21 and the first functional connector 41 are a snap 6131 structure, one of the first main board connector 21 and the first functional connector 41 is a snap 6131 structure, and the other of the first main board connector 21 and the first functional connector 41 is another snap 6131 structure. When one snap 6131 structure and the other snap 6131 structure are snapped together, the internal contacts of one snap 6131 structure and the internal contacts of the other snap 6131 structure automatically contact and conduct.

[0045] Regarding the above-mentioned circuit board assembly, in order to facilitate the electrical connection between the circuit board assembly and the external battery cell 62 assembly so that the external battery cell 62 assembly supplies power to the circuit board assembly, please refer to Figure 2 and please also refer to Figure 5 The functional plugging module further includes a power supply connector 42, and the power supply connector 42 is arranged on the BMS board 31. The power supply connector 42 is used for plugging with the battery cell 62 assembly of the energy storage device.

[0046] Regarding the above-mentioned circuit board assembly, please refer to Figure 2 and Figure 3 and please also refer to Figure 6 and Figure 7 The functional board 3 further includes an adapter board 32 and a panel 33, and the panel 33 is electrically connected to the adapter board 32; the main board plugging module further includes a second main board connector 22 arranged on the main control board 1; the functional plugging module further includes a second functional connector 43, and the second functional connector 43 is arranged on the adapter board 32. The second functional connector 43 is plugged with the second main board connector 22 to electrically connect the adapter board 32 and the main control board 1. In the above manner, the adapter board 32 can be designed into different shapes and sizes according to actual needs, the position of the panel 33 can be flexibly adjusted, and there is no need to be restricted by the position of the panel 33, which helps to optimize the layout of the circuit board assembly, so that when the circuit board assembly is installed in the energy storage device, the utilization of the internal space of the energy storage device is optimized.

[0047] Regarding the above-mentioned second main board connector 22 and second functional connector 43, in some embodiments, one of the second main board connector 22 and the second functional connector 43 is a male plugging terminal, and the other of the second main board connector 22 and the second functional connector 43 is a female plugging terminal.

[0048] Regarding the above-mentioned second main board connector 22 and second functional connector 43, it can be understood that the second main board connector 22 and the second functional connector 43 include but are not limited to a male-female plugging structure. For example, in some other embodiments, the second main board connector 22 and the second functional connector 43 are a pin-hole plugging structure, one of the second main board connector 22 and the second functional connector 43 is a plugging pin, and the other of the second main board connector 22 and the second functional connector 43 is a jack. When the plugging pin is inserted into the jack, the plugging pin automatically contacts and conducts with the contacts inside the jack; or, in some other embodiments, the second main board connector 22 and the second functional connector 43 are a snap 6131 structure, one of the second main board connector 22 and the second functional connector 43 is a snap 6131 structure, and the other of the second main board connector 22 and the second functional connector 43 is another snap 6131 structure. When one snap 6131 structure and another snap 6131 structure are snapped together, the internal contacts of one snap 6131 structure and the internal contacts of another snap 6131 structure automatically contact and conduct.

[0049] Regarding the above circuit board assembly, please refer to Figure 2 , and please also refer to Figure 6 and Figure 7 , the functional plugging module further includes a third functional connector 44 and a fourth functional connector 45. The third functional connector 44 is disposed on the adapter board 32, and the fourth functional connector 45 is disposed on the panel 33. The third functional connector 44 is plugged with the fourth functional connector 45 to electrically connect the panel 33 and the adapter board 32.

[0050] Regarding the above-mentioned third functional connector 44 and fourth functional connector 45, in some embodiments, one of the third functional connector 44 and the fourth functional connector 45 is a male plugging terminal, and the other of the third functional connector 44 and the fourth functional connector 45 is a female plugging terminal.

[0051] Regarding the above-mentioned third functional connector 44 and fourth functional connector 45, it can be understood that the third functional connector 44 and fourth functional connector 45 include but are not limited to male-female plug-in structures. For example, in some other embodiments, the third functional connector 44 and fourth functional connector 45 are pin-hole plug-in structures. One of the third functional connector 44 and fourth functional connector 45 is a plug pin, and the other of the third functional connector 44 and fourth functional connector 45 is a jack. When the plug pin is inserted into the jack, the plug pin automatically contacts and conducts with the contacts inside the jack. Or, in some other embodiments, the third functional connector 44 and fourth functional connector 45 are snap 6131 structures. One of the third functional connector 44 and fourth functional connector 45 is a snap 6131 structure, and the other of the third functional connector 44 and fourth functional connector 45 is another snap 6131 structure. When one snap 6131 structure and another snap 6131 structure are snapped together, the internal contacts of one snap 6131 structure and the internal contacts of another snap 6131 structure automatically contact and conduct.

[0052] Regarding the above-mentioned circuit board assembly, please refer to Figure 2 and Figure 3 and please also refer to Figure 8 The functional board 3 further includes an AC output board 34; the main board plug-in module further includes a third main board connector 23 disposed on the main control board 1; the functional plug-in module further includes a fifth functional connector 46, and the fifth functional connector 46 is disposed on the AC output board 34. The fifth functional connector 46 is plugged into the third main board connector 23 to electrically connect the AC output board 34 to the main control board 1.

[0053] Regarding the above-mentioned third main board connector 23 and fifth functional connector 46, in some embodiments, one of the third main board connector 23 and fifth functional connector 46 is a terminal, and the other of the third main board connector 23 and fifth functional connector 46 is an opening.

[0054] Regarding the above-mentioned third main board connector 23 and fifth functional connector 46, it can be understood that the third main board connector 23 and the fifth functional connector 46 include, but are not limited to, a terminal opening plugging structure. For example, in some other embodiments, the third main board connector 23 and the fifth functional connector 46 are pinhole plugging structures. One of the third main board connector 23 and the fifth functional connector 46 is a plug pin, and the other of the third main board connector 23 and the fifth functional connector 46 is a jack. When the plug pin is inserted into the jack, the plug pin automatically contacts and conducts with the contacts inside the jack; or, in some other embodiments, the third main board connector 23 and the fifth functional connector 46 are snap 6131 structures. One of the third main board connector 23 and the fifth functional connector 46 is a snap 6131 structure, and the other of the third main board connector 23 and the fifth functional connector 46 is another snap 6131 structure. When one snap 6131 structure and the other snap 6131 structure are snapped together, the internal contacts of one snap 6131 structure and the internal contacts of the other snap 6131 structure automatically contact and conduct.

[0055] Regarding the above circuit board assembly, please refer to Figure 1 and Figure 2 , the first main board connector 21 is located on one surface of the main control board 1, and the second main board connector 22 and the third main board connector 23 are located on the opposite surface of the main control board 1, so that the BMS board 31 is located on one side of the main control board 1, and the adapter board 32, the panel 33, and the AC output board 34 are located on the opposite side of the main control board 1. By the above method, it is helpful to make full use of the space of the main control board 1. When the BMS board 31, the adapter board 32, the panel 33, and the AC output board 34 are located on different sides of the main control board 1, it can not only reduce the mutual interference between the BMS board 31, the adapter board 32, the panel 33, and the AC output board 34, but also reduce the heat concentration on one side of the main control board 1 when the BMS board 31, the adapter board 32, the panel 33, and the AC output board 34 generate heat during operation, thereby reducing the heat imbalance on the main control board 1 and thus reducing the local overheating of the main control board 1.

[0056] Regarding the above circuit board assembly, please refer to Figure 1 and Figure 2 , the functional board 3 further includes a shielding board 35, and the shielding board 35 is detachably connected to the main control board 1; and / or, the functional board 3 further includes a control board 36, and the control board 36 is detachably connected to the main control board 1.

[0057] The circuit board assembly provided by the embodiment of the present utility model is applied to an energy storage device, and includes a main control board 1, a main board plug-in module, a function board 3, and a function plug-in module; the main board plug-in module is arranged on the main control board 1; the function plug-in module is arranged on the function board 3, and the main board plug-in module is plugged into the function plug-in module to electrically connect the function board 3 to the main control board 1. In this way, the circuit board assembly of the embodiment of the present utility model can be modularized by plugging connections, replacing the wire connection method of the traditional circuit board assembly, thereby reducing the wiring of the circuit board assembly and avoiding the difficulties in meeting the requirements of safety regulations, electromagnetic compatibility, heat dissipation, assembly, testing, and maintenance caused by wire entanglement and wire crossing, thus reducing potential safety hazards. At the same time, the circuit board assembly is modularized by plugging connections, which helps to reduce the volume of the circuit board assembly and the space occupancy rate of the circuit board assembly.

[0058] Please refer to Figure 9 , the present utility model further provides an embodiment of an energy storage device. The energy storage device includes a housing, a battery cell assembly, and the above-mentioned circuit board assembly; the housing includes an upper shell 51, a lower shell 52, and a face cover 53. The upper shell 51 is detachably connected to the lower shell 52. The upper shell 51 and the lower shell 52 jointly enclose a receiving cavity (not shown in the figure) and an opening (not shown in the figure). The opening communicates with the receiving cavity. The face cover 53 is detachably connected to the upper shell 51 and the lower shell 52, and the face cover 53 covers the opening; the battery cell assembly includes a frame 61, a plurality of battery cells 62, and a power terminal 63. The frame 61 is fixed in the receiving cavity, a plurality of battery cells 62 are arranged on the frame 61, the power terminal 63 is arranged on the frame 61, and the power terminal 63 is electrically connected to the plurality of battery cells 62; the circuit board assembly is received in the receiving cavity. The BMS board 31 of the circuit board assembly is connected to the power terminal 63, and the panel 33 of the circuit board assembly is adapted to the face cover 53.

[0059] For the above-mentioned energy storage device, please refer to Figure 9 and Figure 10 , in some embodiments, a plurality of first screw holes 521 are provided on the inner surface of the lower shell 52, and a plurality of second screw holes 611 are provided on the frame 61; a plurality of third screw holes 321 are provided on the adapter board 32 of the circuit board assembly, and a plurality of fourth screw holes 11 are provided on the main control board 1 of the circuit board assembly; the energy storage device further includes a plurality of first screw connectors 7 and a plurality of second screw connectors 8. A first screw connector 7 passes through a third screw hole 321 and extends into a first screw hole 521, and a first screw connector 7 is screwed to the third screw hole 321 and the first screw hole 521 respectively to fix the adapter board 32 to the lower shell 52. A second screw connector 8 passes through a fourth screw hole 11 and extends into a second screw hole 611, and a second screw connector 8 is screwed to a fourth screw hole 11 and a second screw hole 611 respectively to fix the main control board 1 to the frame 61. In this way, the adapter board 32 is fixed to the housing, and the main control board 1 is fixed to the battery cell assembly, which can fix the circuit board assembly to the housing and the battery cell assembly respectively, improving the stability of the circuit board assembly.

[0060] For the above energy storage device, please refer to Figure 9 and Figure 10 , in some embodiments, the frame 61 is provided with a cavity (not shown in the figure), a plurality of battery cells 62 are arranged in the cavity, and after the plurality of battery cells 62 are connected in series, a total positive interface and a total negative interface are formed. The power terminal 63 includes a positive terminal and a negative terminal. The positive terminal and the negative terminal are integrally formed on the frame 61. The positive terminal is electrically connected to the total positive interface, and the negative terminal is electrically connected to the total negative interface. The power plug connector 42 of the BMS board 31 includes a positive plug portion and a negative plug portion. The positive plug portion is plugged into the positive terminal, and the negative plug portion is plugged into the negative terminal, so that the BMS board 31 is electrically connected to the plurality of battery cells 62.

[0061] For the above energy storage device, please refer to Figure 9 and Figure 10 , in some embodiments, the frame 61 includes an upper frame 612 and a lower frame 613. The upper frame 612 is provided with a bayonet 6121, and the lower frame 613 is provided with a buckle 6131. The buckle 6131 is snapped with the bayonet 6121, so that the upper frame 612 and the lower frame 613 are detachably connected, and the upper frame 612 and the lower frame 613 jointly enclose to form a cavity. In the above manner, the frame 61 plays a protective role for the plurality of battery cells 62, and can reduce the damage of the plurality of battery cells 62 caused by the shaking or collision of the energy storage device. In addition, in the above manner, the detachable structure of the frame 61 can facilitate the maintenance of the plurality of battery cells 62.

[0062] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A circuit board assembly is applied to an energy storage device, characterized in that, Comprising: Main control board; Main board plugging module, arranged on the main control board; Function board; Function plugging module, arranged on the function board, the main board plugging module is plugged with the function plugging module so that the function board is electrically connected to the main control board.

2. The circuit board assembly according to claim 1, wherein: The function board includes a BMS board; The main board plugging module includes a first main board plugging part arranged on the main control board; The function plugging module includes a first function plugging part, the first function plugging part is arranged on the BMS board, and the first function plugging part is plugged with the first main board plugging part so that the BMS board is electrically connected to the main control board.

3. The circuit board assembly according to claim 2, wherein: The function plugging module further includes a power supply plugging part, the power supply plugging part is arranged on the BMS board, and the power supply plugging part is used for plugging with the battery cell assembly of the energy storage reserve.

4. The circuit board assembly according to claim 2, wherein: The function board further includes an adapter board and a panel, and the panel is electrically connected to the adapter board; The main board plugging module further includes a second main board plugging part arranged on the main control board; The function plugging module further includes a second function plugging part, the second function plugging part is arranged on the adapter board, and the second function plugging part is plugged with the second main board plugging part so that the adapter board is electrically connected to the main control board.

5. The circuit board assembly according to claim 4, wherein: The function plugging module further includes a third function plugging part and a fourth function plugging part, The third function plugging part is arranged on the adapter board, the fourth function plugging part is arranged on the panel, and the third function plugging part is plugged with the fourth function plugging part so that the panel is electrically connected to the adapter board.

6. The circuit board assembly according to claim 4, wherein: The function board further includes an AC output board; The main board plugging module further includes a third main board plugging part arranged on the main control board; The function plugging module further includes a fifth function plugging part, the fifth function plugging part is arranged on the AC output board, and the fifth function plugging part is plugged with the third main board plugging part so that the AC output board is electrically connected to the main control board.

7. The circuit board assembly according to claim 6, wherein: The first main board plugging part is located on one surface of the main control board, and the second main board plugging part and the third main board plugging part are located on the opposite other surface of the main control board, so that the BMS board is located on one side of the main control board, and the adapter board, the panel and the AC output board are located on the opposite other side of the main control board.

8. The circuit board assembly according to claim 7, wherein: The function board further includes a shielding board, and the shielding board is detachably connected to the main control board; and / or The function board further includes a control board, and the control board is detachably connected to the main control board.

9. An energy storage device, characterized in that, Comprising: A housing, the housing includes an upper shell, a lower shell and a face cover, the upper shell is detachably connected to the lower shell, the upper shell and the lower shell jointly enclose a receiving cavity and an opening, the opening communicates with the receiving cavity, the face cover is detachably connected to the upper shell and the lower shell, and the face cover covers the opening; A battery cell assembly, including a frame, a plurality of battery cells and power terminals, the frame is fixed in the receiving cavity, the plurality of battery cells are arranged in the frame, the power terminals are arranged in the frame, and the power terminals are electrically connected to the plurality of battery cells; The circuit board assembly according to any one of claims 2-8, the circuit board assembly is received in the receiving cavity, and the BMS board of the circuit board assembly is connected to the power terminal.

10. The energy storage device according to claim 9, wherein, A plurality of first screw holes are provided on the inner surface of the lower shell, and a plurality of second screw holes are provided on the frame; A plurality of third screw holes are provided on the adapter board of the circuit board assembly, and a plurality of fourth screw holes are provided on the main control board of the circuit board assembly; The energy storage device further includes a plurality of first screw connectors and a plurality of second screw connectors. A first screw connector passes through a third screw hole and extends into a first screw hole, and a first screw connector is respectively screwed with the third screw hole and the first screw hole to fix the adapter board to the lower shell. A second screw connector passes through a fourth screw hole and extends into a second screw hole, and a second screw connector is respectively screwed with a fourth screw hole and a second screw hole to fix the main control board to the frame.

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