Battery pack and energy storage power supply

Abstract

A battery pack (100) and an energy storage power supply (1000) are disclosed. The battery pack (100) in an embodiment of the present application comprises a housing (10), a plurality of battery cells (20), an electrical connector (60), a control circuit board (30), and an acquisition assembly (40). A plurality of first through-holes (11) are formed in the inner wall of the housing (10). One end of each of the plurality of battery cells (20) is fixed at a position corresponding to a first through-hole (11), and an electrode (21) of the battery cell (20) communicates with the outside of the housing (10) via the first through-hole (11). The electrical connector (60) is arranged outside the housing (10) and is electrically connected to the electrodes (21) of the battery cells (20) via the first through-holes (11). The control circuit board (30) is arranged in the housing (10). The acquisition assembly (40) is arranged outside the housing (10) and is electrically connected to the electrodes (21) of the plurality of battery cells (20). The housing (10) is further provided with a second through-hole (12), and the acquisition assembly (40) passes through the second through-hole (12) to be electrically connected to the control circuit board (30).

Description

Battery packs and energy storage power supplies

[0001] Priority information

[0002] This application claims priority and benefits to patent applications filed with the China National Intellectual Property Administration on July 31, 2024, with patent application numbers 202411051493.1 and 202421859781.5, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of energy storage equipment technology, and more specifically, to a battery pack and energy storage power supply. Background Technology

[0004] In related technologies, data acquisition components are typically used to collect real-time data from the internal cells of an energy storage power supply. To facilitate the connection of the acquisition components to both the cells and the control circuit board, they are usually placed inside the energy storage power supply. While this arrangement makes connection easier, it also complicates maintenance by requiring the power supply's casing to be opened. Furthermore, placing the acquisition components inside the power supply necessitates allocating more internal space, increasing the overall size of the energy storage power supply. Summary of the Invention

[0005] This application provides a battery pack and an energy storage power supply.

[0006] The battery pack according to the embodiments of this application includes:

[0007] The housing has a plurality of first through holes formed in its inner wall;

[0008] Multiple battery cells, one end of which is fixed at a position corresponding to the first through hole, and the electrodes of the battery cells are connected to the outside of the housing through the first through hole;

[0009] An electrical connector is disposed outside the housing, and the first through hole provides a connection channel so that the electrical connector is electrically connected to the electrode of the battery cell;

[0010] A control circuit board, wherein the control circuit board is disposed within the housing;

[0011] A data acquisition component is disposed outside the housing and electrically connected to the electrical connector. The housing also has a second through hole through which the data acquisition component passes and is electrically connected to the control circuit board.

[0012] The battery pack provided in this application eliminates the need for a support frame by fixing the battery cells through a first through hole in the casing, thus reducing the size of the battery pack. Furthermore, extending the electrodes outside the casing and then mounting the acquisition component outside the casing and connecting it to the electrodes further reduces the size of the battery pack. Moreover, by creating a second through hole in the casing, the acquisition component can be connected to a control circuit board located inside the casing. This allows the control circuit board to control the battery cells based on the signals acquired by the acquisition component, maintaining the original functionality while reducing the size.

[0013] In some embodiments, the first through-hole is located at the bottom of the housing.

[0014] Therefore, placing the first through hole at the bottom of the housing makes it easier to assemble the battery pack.

[0015] In some embodiments, a receiving groove is provided on the outer side of the bottom of the housing, and the acquisition component is at least partially disposed within the receiving groove.

[0016] By placing the acquisition component inside the receiving slot, the acquisition component can be protected, while also helping to further reduce the size of the battery pack.

[0017] In some embodiments, the housing further includes a cover plate disposed on the housing and covering the receiving groove.

[0018] Thus, the cover plate covering the receiving slot can prevent dust and water, thereby further protecting the acquisition components.

[0019] In some embodiments, the battery pack further includes a bracket connected to the housing, the bracket having a fixing groove, the end of the battery cell away from the first through hole being fixed in the fixing groove, and the bracket being fixed to the housing, thereby fixing the battery cell inside the housing.

[0020] Thus, the bracket can be used to fix multiple battery cells, making it easier to assemble the cells.

[0021] In some embodiments, the housing is provided with a third through hole, through which the electrical connector is electrically connected to the control circuit board.

[0022] In this way, the electrical connector can also pass through the third through hole, so that one end can be connected to the battery cell inside the housing and the other end can be connected to the control circuit board.

[0023] In some embodiments, the acquisition component includes an acquisition circuit board, which includes a main body and a connecting portion. The main body is disposed outside the housing, and the connecting portion is connected to the main body and connected to the control circuit board through the second through hole.

[0024] This results in a thinner circuit board, which helps to further reduce the size of the battery pack.

[0025] In some embodiments, the connecting portion includes a first connector that passes through the second through hole, and the control circuit board includes a second connector. The connecting portion and the control circuit board are connected by the mating of the first connector and the second connector.

[0026] Thus, the electrical connection between the acquisition component and the control circuit board is achieved through the first connector and the second connector, which helps to simplify the assembly steps of the battery pack and reduce the assembly difficulty. In addition, the first connector is inserted through the through hole, which facilitates the insertion.

[0027] In some embodiments, the acquisition component includes a cable that passes through the second through-hole, with one end connected to the electrical connector and the other end connected to the control circuit board.

[0028] Therefore, using a cable connection makes it easier to connect the first connector and the second connector.

[0029] In some embodiments, the acquisition component is configured to acquire the voltage and / or temperature of the battery cell, and the control circuit board is configured to control the charging or discharging of the battery cell based on the voltage and / or temperature.

[0030] In this way, by acquiring the voltage and temperature of the battery cells in real time through the data acquisition components, the battery pack can be prevented from charging and discharging when the battery cells are abnormal, thus avoiding potential safety hazards.

[0031] In some embodiments, the electrical connector is integrally formed with the acquisition component and is electrically connected to the control circuit board through the second through hole.

[0032] This facilitates the processing of electrical connectors and data acquisition components, while also reducing assembly difficulty.

[0033] In some embodiments, a fixing structure is provided on the inner wall of the housing corresponding to the first through hole, one end of the battery cell is fixed to the fixing structure, and the first through hole is provided at the bottom of the fixing structure.

[0034] In this way, multiple battery cells can be fixed on the housing, which facilitates the connection and assembly of other components with the battery cells.

[0035] In some embodiments, the fixing structure is a slot, and one end of the battery cell is inserted into the slot.

[0036] In this way, the slot structure is simple and easy to process, and it also helps to reduce the assembly difficulty of the battery cell.

[0037] Another embodiment of the energy storage power supply of this application includes a battery pack as described in any of the above claims and an inverter disposed within the housing.

[0038] In some embodiments, the inverter is electrically connected to the control circuit board.

[0039] In this way, the inverter can be controlled using a control circuit board, which helps to reduce the difficulty of operation.

[0040] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0041] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0042] Figure 1 is a schematic diagram of the structure of the battery pack according to an embodiment of this application;

[0043] Figure 2 is a schematic diagram of the energy storage power supply module according to an embodiment of this application;

[0044] Figure 3 is a schematic diagram of the internal structure of the battery pack according to an embodiment of this application;

[0045] Figure 4 is a schematic diagram of the structure of the battery pack according to an embodiment of this application;

[0046] Figure 5 is a schematic diagram of the structure of the data acquisition component of the battery pack according to an embodiment of this application;

[0047] Figure 6 is a schematic diagram of the bottom shell of the battery pack according to an embodiment of this application;

[0048] Figure 7 is a schematic diagram of the structure of the battery pack support according to an embodiment of this application.

[0049] Key component symbols: Energy storage power supply 1000, battery pack 100, housing 10, first through hole 11, second through hole 12, receiving slot 13, first mounting part 14, first connecting post 15, cover plate 16, slot 17, battery cell 20, electrode 21, control circuit board 30, second connector 31, acquisition assembly 40, acquisition circuit board 41, main body 411, connecting part 412, first connector 4121, bracket 50, fixing slot 51, second mounting part 52, second connecting post 53, electrical connector 60, acquisition nickel sheet 61, inverter 200. Detailed Implementation

[0050] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] This disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0054] In related technologies, data acquisition components are typically used to collect real-time data from the internal cells of an energy storage power supply. To facilitate the connection of the acquisition components to both the cells and the control circuit board, they are usually placed inside the energy storage power supply. While this arrangement makes connection easier, it also complicates maintenance by requiring the power supply's casing to be opened. Furthermore, placing the acquisition components inside the power supply necessitates allocating more internal space, increasing the overall size of the energy storage power supply.

[0055] Please refer to Figures 1 and 2. This application provides an energy storage power supply 1000. The energy storage power supply 100 includes a battery pack 100 and an inverter 200. The inverter 200 is electrically connected to the battery pack 100. The battery pack 100 includes a housing 10, a plurality of battery cells 20, an electrical connector 60, a control circuit board 30, and a data acquisition component 40. A plurality of first through holes 11 are formed on the inner wall of the housing 10. One end of each of the battery cells 20 is fixed at a corresponding position in the first through hole 11. The electrode 21 of the battery cell 20 is connected to the outside of the housing 10 through the first through hole 11. The electrical connector 60 is disposed outside the housing 10. The first through hole 11 provides a connection channel so that the electrical connector 60 is electrically connected to the electrode 21 of the battery cell 20. The control circuit board 30 is disposed inside the housing 10. The data acquisition component 40 is disposed outside the housing 10 and is electrically connected to the electrical connector 60. A second through hole 12 is also formed on the housing 10. The data acquisition component 40 passes through the second through hole 12 and is electrically connected to the control circuit board 30.

[0056] The battery pack 100 provided in this application eliminates the need for a bracket 50 by fixing the battery cell 20 through a first through hole 11 in the housing 10, thus reducing the size of the battery pack 100. Furthermore, by extending the electrode 21 outside the housing 10 and then placing the acquisition component 40 outside the housing 10 and connecting it to the electrode 21, the size of the battery pack 100 can be further reduced. Moreover, by opening a second through hole 12 in the housing 10, the acquisition component 40 can be connected to a control circuit board 30 disposed inside the housing 10. This allows the control circuit board 30 to control the battery cell 20 based on the signals acquired by the acquisition component 40, thus maintaining the original functionality while reducing the size.

[0057] Specifically, please refer to Figure 2. The energy storage power supply 1000 includes a battery pack 100 and an inverter 200. The most basic function of the inverter 200 is to convert the DC power (such as the power from batteries, supercapacitors, and other energy storage devices) in the energy storage power supply 1000 into AC power to meet the needs of the power grid or load. This conversion allows the energy storage power supply 1000 to flexibly connect to the power grid or supply power to the load. Simultaneously, under specific circumstances, such as when the power grid has sufficient power, the inverter 200 can also convert AC power into DC power and store it in the energy storage power supply 1000 to achieve energy storage and reuse.

[0058] Please refer to Figure 1. The battery pack 100 is a device that can store electrical energy and release it when needed. Its main function is to provide a stable and reliable power supply. When the system needs to store electrical energy, the controller charges the battery pack, which converts the electrical energy into chemical energy for storage. When the system needs to use electrical energy, the controller first converts the DC power stored in the battery pack into AC power before outputting it.

[0059] In this embodiment, multiple battery cells 20 are arranged in an upright array, that is, the length direction of the battery cells 20 is arranged in a vertical direction to ensure minimal space occupation.

[0060] In other embodiments, the multiple cells 20 may also be arranged in an array along other directions as needed.

[0061] The data acquisition component 40 is responsible for collecting the status information of each cell 20 in the battery pack 100 in order to accurately manage the battery.

[0062] The control circuit board 30 is an important component of the BMS system. By integrating various electronic components and microprocessors, it enables centralized control of functions such as charging, discharging, protection, equalization, status monitoring, and communication of individual battery cells or modules within the battery pack 100.

[0063] Specifically, in this embodiment, the electrical connector 60 is a busbar, a device with high conductivity, stability, and reliability used to concentrate or distribute current. In the electrical field, busbars are also called busbars, bus bars, etc., and are used to connect multiple electrical lines. The busbar is made of highly conductive materials to ensure efficient current transmission. The busbar also has good current carrying and transmission capabilities, enabling it to quickly respond to changes in the power grid and ensure the stable operation of the power grid.

[0064] In some embodiments, the electrical connector 60 passes through the first through-hole 11 and is electrically connected to the electrode 21 of the battery cell 20.

[0065] In some embodiments, the electrode 21 of the battery cell 20 may also pass through the first through hole 11 and be electrically connected to the electrical connector 60.

[0066] In some embodiments, the electrical connector 60 and the electrode 21 of the battery cell 20 may also be electrically connected within the first through hole 11.

[0067] The electrical connector 60 can connect the positive and negative terminals of at least one battery cell 20 in sequence, so that the positive and negative terminals connected to the two ends of the electrical connector 60 are respectively the positive terminal and the negative terminal. In other words, the electrical connector 60 is connected in series with at least one battery cell 20, so that at least one battery cell 20 forms a high voltage output power supply, thereby ensuring that the user's power demand is met.

[0068] In this embodiment, the electrical connector 60 is plate-shaped, and each connector 60 connects three to six battery cells 20, achieving series connection between the six battery cells 20. The connector 60 can be made of copper, aluminum, nickel, or an alloy. After the connector 60 is fixed in the correct position using a working fixture, it can be laser-welded to the electrode 21 of the battery cell 20. It is understood that other connection methods such as twisting or pressing can also be used to achieve the electrical connection between the connector 60 and the electrode 21 of the battery cell 20.

[0069] Please refer to Figures 1 and 3. In some embodiments, the first through hole 11 is provided at the bottom of the housing 10.

[0070] Thus, placing the first through hole 11 at the bottom of the housing 10 makes it easier to assemble the battery pack 100.

[0071] Specifically, in this embodiment, the housing 10 includes a top cover, a bottom cover, a left side cover, a right side cover, a front side cover, and a rear side cover. The top cover, bottom cover, left side cover, right side cover, front side cover, and rear side cover are all integral injection molded structures, and are then connected by fasteners or other connection methods.

[0072] In other embodiments, the housing 10 can also be disassembled into any part as needed. Each part can be a one-piece structure formed by integral processing, or it can be generated using other processing methods.

[0073] Furthermore, the top cover, bottom shell, left side cover, right side cover, front side cover and rear side cover are arranged to form a receiving cavity, and multiple battery cells 20 are arranged in the receiving cavity.

[0074] Furthermore, since the first through hole 11 is located on the bottom shell, one end of the battery cell 20 is fixed to the bottom shell.

[0075] In other embodiments, one end of the battery cell 20 may also be fixed to the left or right side plates or the front or rear side plates, depending on actual needs, and is not specified here.

[0076] In this embodiment, a support portion is provided on the side of the bottom shell away from the battery cell 20, and an anti-slip structure is provided on the support portion. Optionally, the anti-slip structure can be an anti-slip silicone pad, an anti-slip rubber pad, or an anti-slip pattern provided on the support portion.

[0077] In other embodiments, a fixing groove 51 may also be provided on the side of the bottom shell away from the battery cell 20. A thicker anti-slip pad is provided in the fixing groove 51. The material of the anti-slip pad can be selected according to actual needs and is not limited here.

[0078] In this embodiment, the battery pack 100 also includes an expansion socket 50, which is a socket device designed to solve the problem of insufficient power sockets. The expansion socket is disposed on the left and right side panels.

[0079] In other embodiments, the expansion socket may also be provided on at least one of the top cover, bottom shell, left side cover, right side cover, front side cover and rear side cover, and the specific configuration can be determined according to actual needs, without limitation.

[0080] In this embodiment, two clearance grooves are provided on the top cover, and the two clearance grooves are respectively provided for the left and right side plates. The handle extends out from the clearance groove and is exposed on the outside of the housing 10.

[0081] Furthermore, the handle is made of metal, specifically aluminum alloy, with a hollow interior. This helps to reduce the weight of the battery pack 100, and the aluminum alloy handle has high strength and durability, which helps to increase the reliability of the handle and extend its service life.

[0082] In other embodiments, the two clearance slots may also be provided corresponding to the front and rear side plates respectively.

[0083] In other embodiments, the handle may also be made of other materials, which can be set according to actual needs and are not limited here.

[0084] In other embodiments, the handle may also be configured as a flexible handle, which has good adaptability and flexibility, and provides better comfort and tactile feel.

[0085] In some embodiments, a receiving groove 13 is provided on the outer side of the bottom of the housing 10, and the collection component 40 is disposed in the receiving groove 13.

[0086] Thus, placing the acquisition component 40 inside the receiving slot 13 can protect the acquisition component 40 and also help to further reduce the size of the battery pack 100.

[0087] Specifically, in this embodiment, the outer surface of the bottom shell is recessed inward to form a receiving groove 13, and the first through hole 11 and the second through hole 12 are both provided at the bottom of the receiving groove 13.

[0088] In some embodiments, the housing 10 further includes a cover plate 16 disposed on the housing 10 and covering the receiving groove 13.

[0089] Thus, the cover plate 16 covers the receiving groove 13, which can prevent dust and water, thereby further protecting the acquisition component 40.

[0090] Specifically, the cover plate 16 is an integral structure formed by one-piece processing. Furthermore, an avoidance groove is provided at the edge of the opening of the receiving groove 13. The avoidance groove is used to set the cover plate 16. The cover plate 16 and the avoidance groove are in transition fit or clearance fit.

[0091] In this embodiment, the cover plate 16 and the bottom shell are detachably connected by fasteners. In other embodiments, the cover plate 16 and the bottom shell can also be detachably connected by snap-fit, tenon and mortise, or other forms.

[0092] Please refer to Figures 1, 5 and 7. In some embodiments, the battery pack 100 also includes a bracket 50, which is connected to the housing 10. The bracket 50 is provided with a fixing groove 51. One end of the battery cell 20 away from the first through hole 11 is fixed in the fixing groove 51. The bracket is fixed to the housing, thereby fixing the battery cell inside the housing.

[0093] Thus, the bracket 50 can fix multiple battery cells 20, which facilitates the assembly of the battery cells 20.

[0094] Specifically, multiple battery cells 20 are arranged in an array inside the bracket 50 and fixed in place, which facilitates the disassembly, assembly, and maintenance of the battery pack 100.

[0095] Furthermore, the number of stents 50 can be one or more, and the specific number can be selected according to actual needs, without limitation here.

[0096] Please refer to Figure 4. In some embodiments, the housing 10 is provided with a third through hole, through which the electrical connector 60 passes and is electrically connected to the control circuit board 30.

[0097] Thus, the electrical connector 60 can pass through the third through hole, so that one end is connected to the battery cell 20 inside the housing 10 and the other end is connected to the control circuit board 30.

[0098] Specifically, the battery cell 20 is electrically connected to the control circuit board 30 through the electrical connector 60 passing through the third through hole, so that the control circuit board 30 can control the use of electrical energy by the battery cell 20. In this embodiment, the third through hole and the second through hole 12 are the same through hole to facilitate the processing of the third through hole and the second through hole 12.

[0099] In other embodiments, the third through hole and the second through hole 12 may also be different through holes.

[0100] In some embodiments, the electrical connector 60 includes a connected body 411 and a collecting nickel plate 61, and the electrical connector 60 is electrically connected to the collecting assembly 40 through the collecting nickel plate 61.

[0101] Thus, by using the nickel plate 61 to achieve the electrical connection between the electrical connector 60 and the acquisition component 40, it is beneficial to reduce energy loss and improve the efficiency of the equipment. At the same time, the possibility of the wiring of the nickel plate 61 becoming loose is small, which can ensure the connection stability between the electrical connector 60 and the acquisition component 40 under vibration or external force.

[0102] Specifically, the nickel strip 61 is a metal sheet used to achieve electrical connections, typically made of pure nickel or a nickel alloy. In electronic devices and battery packs, the nickel strip 61 is often used as a conductive medium to connect the positive and negative terminals or other electronic components.

[0103] Collecting nickel sheets 61 typically requires the use of equipment such as a cutting machine or laser cutting machine to cut the nickel sheets into the required shapes and sizes according to design requirements. The processed nickel sheets are then welded to the collecting component 40. Common welding methods include spot welding and laser welding. During the welding process, parameters such as welding temperature, time, and pressure need to be controlled to ensure welding quality.

[0104] In some embodiments, for the nickel sheet 61 that requires a specific shape, it can be stamped using a stamping press.

[0105] In some embodiments, electrical connectors 60 made of copper sheets, nickel-plated copper sheets, or other alloy materials may also be considered.

[0106] Please refer to Figure 4. In some embodiments, the acquisition component 40 includes an acquisition circuit board 41. The acquisition circuit board 41 includes a main body 411 and a connecting part 412. The main body 411 is disposed outside the housing 10. The connecting part 412 is connected to the main body 411 and connected to the control circuit board 30 through the second through hole 12.

[0107] Thus, the thinness of the acquisition circuit board 41 is small, which helps to further reduce the size of the battery pack.

[0108] Specifically, the main board is a PCB board, which is set outside the housing of the energy storage power supply. The connection part 412 can be selected according to actual needs. In some embodiments, the connection part 412 and the main board are integrally formed into a single structure, that is, the acquisition circuit board 41 is a single PCB board.

[0109] Please refer to Figures 4 and 5. In some embodiments, the connecting part 412 includes a first connector 4121, which passes through the second through hole 12. The control circuit board 30 includes a second connector 31. The connecting part 412 and the control circuit board 30 are connected by the mating of the first connector 4121 and the second connector 31.

[0110] Thus, by using the first connector 4121 and the second connector 31 to achieve electrical connection between the acquisition component 40 and the control circuit board 30, it is beneficial to simplify the assembly steps of the battery pack 100 and reduce the assembly difficulty.

[0111] Specifically, in this embodiment, the connecting part 412 is a flexible circuit board, and the first connector 4121 and the second connector 31 are both male terminals. The male terminals pass through the second through hole 12 and are electrically connected to the control circuit board 30 through other electrical components.

[0112] Thus, the electrical connection between the male connector terminal and the control circuit board 30 simplifies the assembly steps of the battery pack 100 and reduces the assembly difficulty. Furthermore, the first connector 4121 passes through the through hole 13, facilitating insertion.

[0113] Specifically, the male connector terminal typically refers to the part of the acquisition component with a socket (or female connector) used to receive and secure the mating plug (or male connector). It is an important component in the electrical connection, ensuring a tight connection with the corresponding plug and guaranteeing stable transmission of current or signals. In this embodiment, the male connector is located at one end of the connecting wire, and the other end of the connecting wire is connected to the control circuit board 30.

[0114] Male connector terminals typically have one or more sockets. The shape, size, and position of these sockets are designed according to specific connection requirements to ensure accurate mating with the corresponding plug. As is easily understood, male connector terminals often employ various securing mechanisms, such as threaded locking and snap-locking, to prevent the plug from accidentally dislodging during use.

[0115] It is important to note that when using male terminal blocks, their specifications, models, and connection methods must be compatible with the corresponding plugs to ensure accurate and reliable connections. Furthermore, attention must be paid to the installation and securing methods of the male terminal blocks to prevent electrical malfunctions or safety accidents caused by loosening or detachment.

[0116] In some embodiments, the acquisition component 40 includes a cable that passes through the second through-hole 12, with one end connected to the electrical connector 60 and the other end connected to the control circuit board 30.

[0117] Thus, using a cable connection makes it easier to connect the first connector 4121 and the second connector 31.

[0118] Specifically, in this embodiment, both ends of the cable are provided with female terminals, which are connected to male terminals to enable one end of the cable to be connected to the acquisition component 40 and the other end to the control circuit board 30.

[0119] In other embodiments, other connectors may also be provided at both ends of the cable. The specific connectors can be selected according to the model and type of the first connector 4121 and the second connector 31, which will not be elaborated here.

[0120] In some embodiments, the acquisition component 40 is configured to acquire the voltage and / or temperature of the battery cell 20, and the control circuit board 30 is configured to control the charging or discharging of the battery cell 20 based on the voltage and / or temperature.

[0121] In this way, by acquiring the voltage and temperature of the cell 20 in real time through the acquisition component 40, the battery pack 100 can be prevented from charging and discharging when the cell 20 is abnormal, thus avoiding potential safety hazards.

[0122] Specifically, in this embodiment, the control circuit board 30 monitors the voltage of the battery cell 20 in real time through the acquisition component 40. When the voltage of the battery cell 20 reaches the preset charging upper limit, the control circuit board 30 stops charging the battery cell 20 to prevent overcharging. When the voltage of the battery cell 20 drops to the discharge lower limit, the control circuit board 30 also stops discharging the battery cell 20 to prevent over-discharging.

[0123] The temperature information of the battery cell 20 detected by the acquisition component 40 is transmitted to the control circuit board 30. When the temperature exceeds the safety threshold, the control circuit board 30 will activate the temperature protection mechanism, such as reducing the charging current, stopping charging or discharging, to prevent safety accidents caused by overheating of the battery cell 20.

[0124] In some embodiments, the electrical connector 60 is integrally formed with the acquisition component 30 and is electrically connected to the control circuit board 30 through the second through hole 12.

[0125] This facilitates the processing of the electrical connector 60 and the acquisition component 30, while also reducing the difficulty of assembly.

[0126] Specifically, in the embodiments of this application, the electrical connector 60 and the acquisition component 30 are integrally formed structures, and the electrical connector 60 and the acquisition component 30 can be realized by thermoplastic methods or other means.

[0127] Please refer to Figure 5. In some embodiments, the housing 10 is provided with a first mounting part 14 and the bracket 50 is provided with a second mounting part 52. The first mounting part 14 and the second mounting part 52 cooperate to fix the control circuit board 30 inside the housing 10.

[0128] In this way, by using the first mounting part 14 and the second mounting part 52 together, it is beneficial to reduce the assembly difficulty.

[0129] Specifically, in this embodiment, the first mounting part 14 is disposed on the bottom shell, and the first mounting part 14 and the bottom shell are integrally formed into a single structure. Similarly, the second mounting part 52 is disposed on the side of the bracket 50, and the second mounting part 52 and the bracket 50 are integrally formed into a single structure.

[0130] Furthermore, the first mounting part 14 has a slot on the side near the second mounting part 52, and the second mounting part 52 has an elastic buckle on the side near the first mounting part 14. The slot and the elastic buckle cooperate to fix the control circuit board 30. Specifically, when installing the control circuit board 30, one side of the control circuit board 30 can be inserted into the slot first, and then the other end can be pushed into the elastic buckle, so that the elastic slot deforms until the control circuit board 30 reaches the designated position, the elastic buckle resets, and locks the control circuit board 30.

[0131] Furthermore, there are multiple first mounting parts 14, which are evenly arranged on the bottom shell, and there are also multiple second mounting parts 52, which are evenly arranged on the side of the bracket 50.

[0132] In other embodiments, the number and structure of the first mounting part 14 and the second mounting part 52 can also be designed, and the specific selection can be made according to actual needs, which will not be elaborated here.

[0133] In some embodiments, a fixing structure is provided on the inner wall of the housing 10 corresponding to the first through hole 11, one end of the battery cell 20 is fixed to the fixing structure, and the first through hole 11 is provided at the bottom of the fixing structure.

[0134] In this way, multiple battery cells 20 can be fixed on the housing 10, which facilitates the connection and assembly of other components with the battery cells 20.

[0135] In some embodiments, the fixing structure is a slot 17, and one end of the battery cell is inserted into the slot 17.

[0136] Thus, slot 17 has a simple structure and is easy to process, while also helping to reduce the difficulty of assembling the battery cells.

[0137] Please refer to Figures 6 and 7. In some embodiments, the housing 10 includes a plurality of first connecting posts 15, and the bracket 50 includes a plurality of second connecting posts 53. When the housing 10 is connected to the bracket 50, the first connecting posts 15 are connected to the second connecting posts 53.

[0138] Thus, the first connecting post 15 and the second connecting post 53 are used to connect the housing 10 and the bracket 50. The first connecting post 15 is beneficial to improving the structural strength of the housing 10, and the second connecting post 53 is beneficial to improving the structural strength of the bracket 50.

[0139] Specifically, the first connecting post 15 is disposed on the inner wall of the bottom shell, and multiple first connecting posts 15 are arranged in a multi-row and multi-column array, and slots 17 are defined between two adjacent rows and two columns of first connecting posts 15. The array arrangement of multiple first connecting posts 15 realizes the interval setting of slots 17.

[0140] Similarly, the second connecting post 53 is set on the inner wall of the bracket 50. Multiple second connecting posts 53 are arranged in a multi-row, multi-column array, and a fixing groove 51 is defined between two adjacent rows and two columns of second connecting posts 53. The array arrangement of multiple second connecting posts 53 realizes the placement of the fixing groove 51 at intervals.

[0141] Furthermore, the first connecting column 15 and the bottom shell are integrally formed into a single structure, and the second connecting column 53 and the bracket 50 are integrally formed into a single structure.

[0142] It is understandable that by forming a positioning groove and a fixing groove 51 with multiple first connecting posts 15 and second connecting posts 53, the multiple battery cells 20 can be placed at intervals, reducing the problem of thermal expansion caused by direct contact between multiple battery cells 20, and reducing the situation where multiple battery cells 20 are squeezed and deformed by collisions in the battery pack 100, thereby reducing safety risks.

[0143] In some embodiments, cylindrical positioning grooves and fixing grooves 51 can be defined between two adjacent rows and two columns of first connecting posts 15 and two adjacent rows and two columns of second connecting posts 53 to ensure that the cylindrical battery cell 20 is placed stably, thereby improving the stability of the cylindrical battery cell 20.

[0144] In detail, the outer peripheral walls of each first connecting post 15 and second connecting post 53 are formed with arc-shaped surfaces to surround cylindrical positioning grooves and fixing grooves 51, thereby matching the cylindrical grooves with the outer peripheral walls of the battery cell 20, thus ensuring the connection effect between the battery cell 20 and the positioning part and reducing shaking.

[0145] In other embodiments, the positioning groove and fixing groove 51 can also be other shapes, such as rectangles, to ensure that the battery cells 20 of different shapes are placed stably, and no specific limitation is made here.

[0146] In some embodiments, due to the relatively long lengths of the first connecting post 15 and the second connecting post 53, a first reinforcing rib is also provided on the bottom shell to improve its structural strength. The first reinforcing rib is triangular or trapezoidal, with one end connected to the inner wall of the bottom shell and the other end connected to the first connecting post 15. Similarly, a second reinforcing rib is also provided on the bracket 50. The second reinforcing rib is triangular or trapezoidal, with one end connected to the inner wall of the bracket 50 and the other end connected to the second connecting post 53.

[0147] Furthermore, each first connecting post 15 is connected to multiple first reinforcing ribs, and similarly, each second connecting post 53 is connected to multiple second reinforcing ribs.

[0148] In some embodiments, the housing 10 includes a plurality of fasteners, which are respectively fastened to the corresponding first connecting post 15 and second connecting post 53, so that the housing 10 is connected to the bracket 50.

[0149] Thus, using fasteners to achieve a detachable connection between the first connecting post 15 and the second connecting post 53 helps to reduce the maintenance difficulty of the battery pack 100.

[0150] Specifically, in this embodiment, the first connecting post 15 on the bottom shell extends towards the top shell along the height direction of the battery pack 100, and the second connecting post 53 on the bracket 50 extends towards the bottom shell along the height direction of the battery pack 100. Both the first connecting post 15 and the second connecting post 53 are hollow inside and have threaded holes at their opposite ends. The second connecting post 53 has a fastener inside that can be screwed into the threaded hole, and the first connecting post 15 and the second connecting post 53 are detachably connected through the threaded connection.

[0151] In other embodiments, fasteners that can be screwed into threaded holes may also be disposed inside the first connecting post 15.

[0152] In other embodiments, the first connecting post 15 and the second connecting post 53 can also be detachably connected by means of snaps, pins, etc.

[0153] In some embodiments, the inverter 200 is electrically connected to the control circuit board 30.

[0154] In this way, the inverter 200 can be controlled by the control circuit board 30, which helps to reduce the difficulty of operation.

[0155] Specifically, in this embodiment, the inverter 200 and the control circuit board 30 are electrically connected via wires, wire bridges, etc. In other embodiments, an additional control component may be electrically connected to the inverter 200, and the control component is used to control the inverter 200.

[0156] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0157] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the stated features. In the description of this application, "multiple" means at least two, such as two or three, unless otherwise explicitly specified.

[0158] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery pack, wherein, include: The housing has a plurality of first through holes formed in its inner wall; Multiple battery cells, one end of which is fixed at a position corresponding to the first through hole, and the electrodes of the battery cells are connected to the outside of the housing through the first through hole; An electrical connector is disposed outside the housing, and the first through hole provides a connection channel so that the electrical connector is electrically connected to the electrode of the battery cell; A control circuit board, wherein the control circuit board is disposed within the housing; A data acquisition component is disposed outside the housing and electrically connected to the electrical connector. The housing also has a second through hole through which the data acquisition component passes and is electrically connected to the control circuit board.

2. The battery pack according to claim 1, wherein, The first through hole is located at the bottom of the housing.

3. The battery pack according to claim 2, wherein, The outer side of the bottom of the housing is provided with a receiving groove, and the acquisition component is at least partially disposed in the receiving groove.

4. The battery pack according to claim 3, wherein, The housing also includes a cover plate disposed on the housing and covering the receiving groove.

5. The battery pack according to any one of claims 1-4, wherein, The battery pack also includes a bracket with a fixing groove. The end of the battery cell away from the first through hole is fixed in the fixing groove. The bracket is fixed to the housing, thereby fixing the battery cell inside the housing.

6. The battery pack according to any one of claims 1-5, wherein, The housing is provided with a third through hole, through which the electrical connector is electrically connected to the control circuit board.

7. The battery pack according to any one of claims 1-6, wherein, The acquisition component includes an acquisition circuit board, which includes a main body and a connecting part. The main body is disposed outside the housing, and the connecting part is connected to the main body and connected to the control circuit board through the second through hole.

8. The battery pack according to claim 7, wherein, The connecting part includes a first connector, which passes through the second through hole. The control circuit board includes a second connector. The connecting part and the control circuit board are connected by the cooperation of the first connector and the second connector.

9. The battery pack according to any one of claims 1-8, wherein, The acquisition component includes a cable that passes through the second through hole, with one end connected to the electrical connector and the other end connected to the control circuit board.

10. The battery pack according to any one of claims 1-9, wherein, The acquisition component is configured to acquire the voltage and / or temperature of the battery cell, and the control circuit board is configured to control the charging or discharging of the battery cell based on the voltage and / or temperature.

11. The battery pack according to any one of claims 1-10, wherein, The electrical connector is integrally formed with the acquisition component and is electrically connected to the control circuit board through the second through hole.

12. The battery pack according to any one of claims 1-11, wherein, The inner wall of the housing is provided with a fixing structure corresponding to the first through hole, one end of the battery cell is fixed to the fixing structure, and the first through hole is provided at the bottom of the fixing structure.

13. The battery pack according to claim 12, wherein, The fixing structure is a slot, and one end of the battery cell is inserted into the slot.

14. An energy storage power source, wherein, It includes the battery pack as described in any one of claims 1-10 and the inverter disposed within the housing.

15. The energy storage power source according to claim 14, wherein, The inverter is electrically connected to the control circuit board.

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