A battery module

Abstract

The application discloses a battery module, comprising: a shell, a side of which is provided with a plug-in port and a terminal port; wherein a threaded hole is arranged around the periphery of the plug-in port; a power supply circuit is arranged in the shell and comprises an input terminal, a wire and an output terminal, the output terminal is exposed through the terminal port to provide a function of being connected with external equipment; a battery cell comprises a battery cell main body and an end plate located at one side of the battery cell main body, the battery cell main body can be plugged into the shell through the plug-in port and is connected with the input terminal; the end plate is provided with a fixing hole corresponding to the threaded hole, the end plate abuts against the outer surface of the shell, a hand screw is screwed through the fixing hole and is threadedly connected with the threaded hole, and the battery cell is fixed. When the battery cell needs to be replaced, the hand screw is only unscrewed, the battery cell is pulled out from the plug-in port, a new battery cell is inserted and the hand screw is tightened, so that the dismounting difficulty is reduced, the efficiency of replacing the battery cell is improved, and the continuity of communication service is ensured.

Description

Technical Field

[0001] This application relates to the field of energy storage battery technology, and in particular to a battery module. Background Technology

[0002] Outdoor mobile communication base stations, as crucial nodes in mobile communication networks, undertake core functions such as emergency rescue, signal coverage, and data transmission. Ensuring their continuous and stable operation is a fundamental prerequisite for guaranteeing communication service quality. Currently, some outdoor mobile communication base stations on the market use battery modules with removable cells. This design concept aims to facilitate convenient cell replacement and charging through cell removability, thereby extending the battery module's lifespan and reducing operating costs. Theoretically, when one or more cells in the battery module experience performance degradation, insufficient power, or malfunction, only the corresponding cell needs to be removed from the battery module and replaced with a fully charged or high-performance cell, eliminating the need to replace the entire battery module and significantly improving resource utilization efficiency.

[0003] However, in practical applications, the existing battery modules with detachable cells have exposed many serious problems. One of them is the inconvenience of cell replacement. Specifically, the cell installation structure of the existing battery modules is complex. When replacing them, a series of operations such as opening, removing, and resealing the cells are required. In addition, various auxiliary tools are needed during the replacement process, which further increases the difficulty of disassembly and assembly. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a battery module that can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A battery module, comprising:

[0007] The outer casing has an insertion port and a terminal port on its side; a threaded hole is provided around the outer periphery of the insertion port;

[0008] The power supply circuit, located inside the housing, includes an input terminal, wires, and an output terminal. The output terminal is exposed through the terminal port to provide a function for interfacing with external devices.

[0009] The battery cell includes a battery cell body and an end plate located on one side of the battery cell body. The battery cell body can be inserted into the housing through the insertion port and complete the docking with the input terminal. The end plate is provided with a fixing hole corresponding to the threaded hole. The end plate abuts against the outer surface of the housing. A hand-tightened screw passes through the fixing hole and is threaded into the threaded hole to fix the battery cell.

[0010] Optionally, the hand-tightening screw includes a screw body and a handle. The screw body includes a nut, and the handle is rotatably connected to the nut. The handle can be rotated to transform between unfolding and folding.

[0011] Optionally, the outer surface of the end plate is provided with a recessed groove, and the nut is embedded in the recessed groove; wherein, the handle is placed in the recessed groove in the folded state and extends out of the recessed groove in the unfolded state.

[0012] Optionally, the outer wall of the housing is provided with a first sealing ring surrounding the insertion port, and the end plate is in close contact with the first sealing ring to achieve a seal.

[0013] Optionally, the housing is provided with at least two insertion ports, and each insertion port corresponds to the insertion of one battery cell.

[0014] Optionally, the housing includes a housing base and a housing top cover. The housing base is provided with a mounting cavity for accommodating the power supply circuit and the battery cell, and the top of the mounting cavity is open. The housing top cover is sealed on the top side of the housing base to close the mounting cavity.

[0015] Optionally, the top of the housing base is provided with a second sealing ring surrounding the mounting cavity, and the housing cover is in close contact with the second sealing ring to achieve a seal.

[0016] Optionally, the mounting cavity includes at least two cell cavities, each corresponding to one of the insertion ports, and a partition rib is provided between any two adjacent cell cavities. The two ends of the partition rib are respectively connected to the two opposite side walls of the housing base; the partition rib is provided with a hollow groove extending in the vertical direction.

[0017] Optionally, the housing base is provided with a first reinforcing mesh located on the bottom wall of the cell cavity; and / or, the bottom side of the housing cover is provided with a second reinforcing mesh corresponding to the cell cavity.

[0018] Optionally, a foolproof groove is provided on one side of the battery cell, and a foolproof protrusion is provided on the inner side of the housing. The cooperation between the foolproof groove and the foolproof protrusion provides alignment for the insertion of the battery cell.

[0019] The beneficial effects of this application are as follows: Compared with the complex cell replacement operation in the prior art, the battery module provided by this application greatly simplifies the cell replacement process through simple insertion and hand-tightening screw fixing. When it is necessary to replace the cell, simply unscrew the hand-tightening screw, pull the cell out of the insertion port, insert the new cell, and tighten the hand-tightening screw. There is no need for a series of cumbersome operations such as opening the cover, removing and replacing, and resealing the cover, nor is it necessary to use complex auxiliary tools. This reduces the difficulty of disassembly and assembly, improves the efficiency of cell replacement, reduces the downtime of communication base stations caused by cell replacement, and ensures the continuity of communication services. Attached Figure Description

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the battery module described in the embodiments of this application;

[0022] Figure 2 for Figure 1 Enlarged view of region A in the middle;

[0023] Figure 3 This is an exploded view of the battery module described in the embodiments of this application;

[0024] Figure 4 This is an exploded view of the outer casing described in an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the structure of the shell base described in the embodiment of this application.

[0026] In the picture:

[0027] 1. Outer shell; 11. Shell base; 111. Cell cavity; 112. Separating rib; 113. First reinforcing rib mesh; 12. Shell top cover; 13. Insertion port; 14. Threaded hole; 15. First sealing ring; 16. Second sealing ring; 17. Terminal port; 2. Cell; 21. Cell body; 22. End plate; 221. Fixing hole; 222. Countersunk groove; 23. Anti-foolproof groove; 3. Hand screw; 31. Screw body; 32. Handle; 41. Input terminal; 42. Output terminal. Detailed Implementation

[0028] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this application, unless otherwise expressly 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 being 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 being 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.

[0031] Outdoor mobile communication base stations, as crucial nodes in mobile communication networks, undertake core functions such as emergency rescue, signal coverage, and data transmission. Ensuring their continuous and stable operation is a fundamental prerequisite for guaranteeing communication service quality. Currently, some outdoor mobile communication base stations on the market use battery modules with removable cells. This design concept aims to facilitate convenient cell replacement and charging through cell removability, thereby extending the battery module's lifespan and reducing operating costs. Theoretically, when one or more cells in the battery module experience performance degradation, insufficient power, or malfunction, only the corresponding cell needs to be removed from the battery module and replaced with a fully charged or high-performance cell, eliminating the need to replace the entire battery module and significantly improving resource utilization efficiency.

[0032] However, in practical applications, the existing battery modules with detachable cells have exposed many serious problems. One of them is the inconvenience of cell replacement. Specifically, the cell installation structure of the existing battery modules is complex. When replacing them, a series of operations such as opening, removing, and resealing the cells are required. In addition, various auxiliary tools are needed during the replacement process, which further increases the difficulty of disassembly and assembly.

[0033] To overcome the above technical problems, such as Figure 1 As shown, this application embodiment provides a battery module, including:

[0034] The outer casing 1 has an insertion port 13 and a terminal port 17 on its side; a threaded hole 14 is provided around the outer periphery of the insertion port 13.

[0035] The power supply circuit is located inside the housing 1 and includes an input terminal 41, a wire, and an output terminal 42. The output terminal 42 is exposed through the terminal port 17 to provide the function of interfacing with external devices.

[0036] The battery cell 2 includes a battery cell body 21 and an end plate 22 located on one side of the battery cell body 21. The battery cell body 21 can be inserted into the housing 1 through the insertion port 13 and complete the docking with the input terminal 41. The end plate 22 is provided with a fixing hole 221 corresponding to the threaded hole 14. The end plate 22 abuts against the outer surface of the housing 1. The hand screw 3 passes through the fixing hole 221 and is threaded to the threaded hole 14 to fix the battery cell 2.

[0037] The outer casing 1 serves as a protective frame for the battery module, with an insertion port 13 and a terminal port 17 on its side. The insertion port 13 is used for inserting the battery cell 2, and the threaded holes 14 surrounding the insertion port 13 provide connection points for fixing the battery cell 2. The terminal port 17 exposes the output terminal 42 of the power supply circuit, facilitating connection with external devices (i.e., mobile communication base station equipment) to provide external power.

[0038] The power supply circuit includes an input terminal 41, wires, and an output terminal 42. The input terminal 41 connects to the battery cell 2 to receive electrical energy from it. The wires transmit electrical energy from the input terminal 41 to the output terminal 42. The output terminal 42 is exposed through terminal port 17, enabling the battery module to connect to external devices and is a key component for power supply. The power supply circuit may also include necessary discharge control circuitry to meet the requirements of automatic power supply control and protection circuitry.

[0039] The battery cell 2 consists of a battery cell body 21 and an end plate 22 located on one side of it. The battery cell body 21 is the core part for storing and releasing electrical energy. It can be inserted into the housing 1 through the insertion port 13 and mates with the input terminal 41 to complete the transmission of electrical energy. The end plate 22 is provided with a fixing hole 221 corresponding to the threaded hole 14 of the housing 1. When the battery cell body 21 is inserted into place, the end plate 22 abuts against the outer surface of the housing 1. The hand screw 3 passes through the fixing hole 221 and is threaded into the threaded hole 14 to fix the battery cell 2. This design not only ensures the stability of the battery cell 2 installation, but also facilitates the disassembly and replacement of the battery cell 2.

[0040] During the installation of battery cell 2, the battery cell body 21 is inserted into the housing 1 through the insertion port 13 on the side of the housing 1. During insertion, the input end of the battery cell body 21 is connected to the input terminal 41 of the power supply circuit, thus establishing a power connection path. After the battery cell body 21 is inserted into place, the end plate 22 abuts against the outer surface of the housing 1. At this time, a hand screw 3 is passed through the fixing hole 221 on the end plate 22 and screwed into the threaded hole 14 provided around the insertion port 13 on the outer periphery of the housing 1. The battery cell 2 is firmly fixed to the housing 1 through the threaded connection, preventing the battery cell 2 from shaking or shifting during use.

[0041] In summary, based on the battery module provided in this application, compared to the complex cell 2 replacement operation in the prior art, the battery module of this application greatly simplifies the cell 2 replacement process through simple insertion and hand-tightening screws 3 fixing. When it is necessary to replace cell 2, simply unscrew the hand-tightening screw 3, pull cell 2 out from the insertion port 13, insert the new cell 2, and tighten the hand-tightening screw 3. There is no need for a series of cumbersome operations such as opening, replacing, and resealing the cover, nor is it necessary to use complex auxiliary tools. This reduces the difficulty of disassembly and assembly, improves the efficiency of cell 2 replacement, reduces the downtime of communication base stations caused by cell 2 replacement, and ensures the continuity of communication services. Because cell 2 replacement is convenient, maintenance personnel can quickly replace depleted cells 2, making maintenance work more efficient and easier, reducing the time and labor costs required for maintenance, improving the overall maintenance efficiency of outdoor mobile communication base stations, and helping to ensure the stable operation of the communication network.

[0042] In one embodiment, reference is made to Figure 2 The hand-tightening screw 3 includes a screw body 31 and a handle 32. The screw body 31 includes a nut, and the handle 32 is rotatably connected to the nut. The handle 32 can be rotated to unfold and fold.

[0043] Based on this embodiment, when fixing the battery cell 2 to the housing 1, the operator unfolds the handle 32 of the hand-tightening screw 3, applies rotational torque by holding the handle 32, and gradually screws the threaded portion of the screw body 31 into the threaded hole 14 of the housing 1. As the screw goes deeper, the pressure between the end plate 22 and the housing 1 gradually increases, eventually firmly fixing the battery cell 2 to the housing 1, ensuring the stability of the battery cell 2 during use. When it is necessary to replace the battery cell 2, the operator unfolds the handle 32 again, applies rotational torque in the opposite direction, and screws the screw body 31 out of the threaded hole 14, thereby releasing the fixation of the battery cell 2. At this time, the battery cell 2 can be easily pulled out from the insertion port 13 for replacement. The rotatable connection structure between the handle 32 and the nut allows the handle 32 to rotate freely. When the hand-tightening screw 3 is not needed, the operator can rotate the handle 32 to a folded state to reduce its space occupation; when the hand-tightening screw 3 is needed, the handle 32 is rotated to an unfolded state for better application of torque.

[0044] The rotatable and foldable design of the handle 32 makes it easier for operators to install and remove battery cells 2. The unfolded handle 32 provides a larger torque application point, allowing operators to tighten or loosen the hand screws 3 more easily, especially in situations with limited space or requiring greater torque. This design significantly improves operational convenience and efficiency. When the handle 32 is folded, the overall size of the hand screws 3 is reduced, minimizing the space occupied inside or around the battery module. This is particularly important for compact outdoor mobile communication base station battery modules, preventing collisions or interference between the hand screws 3 and other components, ensuring the normal operation and safety of the battery module.

[0045] In one embodiment, the outer surface of the end plate 22 is provided with a recessed groove 222, and the nut is embedded in the recessed groove 222; wherein, the handle 32 is placed in the recessed groove 222 in the folded state and extends out of the recessed groove 222 in the unfolded state.

[0046] The handle 32 is rotatably connected to the nut. When the screw 3 is not needed, the handle 32 is rotated to a folded state, at which point the handle 32 naturally rests in the recess 222. The recess 222 provides space for the folded handle 32, preventing it from protruding from the end plate 22 surface and avoiding interference with other components. When the screw 3 needs to be tightened, the operator rotates the handle 32 out of the recess 222, allowing it to extend beyond the recess 222, so that the operator can easily grasp the handle 32 to apply rotational torque and complete the installation or removal of the battery cell 2.

[0047] In one embodiment, the outer side wall of the outer casing 1 is provided with a first sealing ring 15 surrounding the insertion port 13, and the end plate 22 is in close contact with the first sealing ring 15 to achieve a seal.

[0048] In this embodiment, a first sealing ring 15 is specifically provided on the outer wall of the outer casing 1 around the insertion port 13. The first sealing ring 15 is typically made of a material with good elasticity and sealing performance, such as rubber, and its shape and size are adapted to the surrounding area of ​​the insertion port 13 and the end plate 22. After the battery cell 2 is installed in place, the end plate 22 will come into close contact with the first sealing ring 15. This close contact is achieved by the pressure generated when the battery cell 2 is firmly installed on the outer casing 1 by a fixing device such as a hand-tightening screw 3. Under pressure, the first sealing ring 15 undergoes elastic deformation, filling the tiny gap between the end plate 22 and the outer wall of the outer casing 1, thereby forming an effective sealing barrier. This sealing mechanism can effectively prevent external moisture, dust, impurities, etc. from entering the battery module, effectively improving the dustproof and waterproof capabilities of the battery module, protecting the key components inside the battery module such as the battery cell 2 and power supply circuit from damage, extending the service life of the battery module, and reducing the failure rate caused by environmental factors.

[0049] In one embodiment, the outer casing 1 is provided with at least two insertion ports 13, and each insertion port 13 corresponds to the insertion of one battery cell 2.

[0050] The battery module features multiple insertion ports 13, each capable of housing multiple battery cells 2, significantly increasing its capacity and output power. In outdoor mobile communication base stations, this means the battery module can provide power to the base station equipment for a longer period, meeting the power demands of high-load operation. For example, during peak communication periods or critical moments such as emergency rescue, the coordinated operation of multiple battery cells 2 can ensure the stable operation of the base station equipment and guarantee the continuity of communication services.

[0051] In one embodiment, reference is made to Figure 4 The outer casing 1 includes a casing base 11 and a casing top cover 12. The casing base 11 is provided with a mounting cavity for accommodating the power supply circuit and the battery cell 2. The top of the mounting cavity is open. The casing top cover 12 covers the top side of the casing base 11 to close the mounting cavity.

[0052] Based on this embodiment, on the one hand, the outer shell 1 is designed as a separate structure of a base 11 and a top cover 12, which can be manufactured separately during processing. For the base 11, due to its complex internal mounting cavity structure, a separate design allows for the use of more suitable molds and processing techniques, such as better control of the shape and dimensional accuracy of the internal cavity during machining or injection molding, reducing processing difficulty and cost. For the top cover 12, its structure is relatively simple, and processing is easier. This separate processing method makes the entire processing of the outer shell 1 more flexible and efficient. Preferably, in this embodiment, the outer shell 1 is manufactured using metal machining, which is more conducive to ensuring its own strength and enhancing its protection of the internal battery cell 2.

[0053] On the other hand, when installing internal components such as the power supply circuit and battery cell 2, since the top of the mounting cavity is open, operators can easily place the power supply circuit in a suitable position on the housing base 11, and fix and connect it. Then, the battery cell 2 is inserted into the mounting cavity through the open top to connect with the power supply circuit. Finally, the housing cover 12 is placed on the top side of the housing base 11, and the two are firmly fixed by means of clips, screws, etc., completing the assembly of the entire battery module. This installation method greatly simplifies the installation process of internal components and improves assembly efficiency.

[0054] In one embodiment, a second sealing ring 16 is provided on the top of the housing base 11 and surrounds the mounting cavity, and the housing cover 12 is in close contact with the second sealing ring 16 to achieve a seal.

[0055] In this embodiment, a second sealing ring 16 is specially provided around the mounting cavity on the top of the housing base 11. The second sealing ring 16 is typically made of a material with good elasticity and sealing performance, such as rubber, and its shape and size are adapted to the surrounding area of ​​the mounting cavity and the housing cover 12. When the housing cover 12 is placed on the top side of the housing base 11, it will make tight contact with the second sealing ring 16. This tight contact is achieved by the pressure generated by a suitable connection method between the housing cover 12 and the housing base 11 (such as snap fastening, screw tightening, etc.). Under pressure, the second sealing ring 16 undergoes elastic deformation, filling the tiny gap between the housing cover 12 and the top of the housing base 11, thereby forming an effective sealing barrier. This sealing mechanism can prevent external moisture, dust, impurities, etc. from entering the mounting cavity, effectively improving its dustproof and waterproof capabilities, protecting key components such as the power supply circuit and battery cell 2 inside the mounting cavity from damage, reducing the failure rate caused by environmental factors, and extending the service life of the battery module.

[0056] In one embodiment, the mounting cavity includes at least two cell cavities 111, each cell cavity 111 is corresponding to the insertion port 13, and a partition rib 112 is provided between any two adjacent cell cavities 111. The two ends of the partition rib 112 are respectively connected to the two opposite side walls of the shell base 11; the partition rib 112 is provided with a hollow groove extending in the vertical direction.

[0057] The mounting cavity is provided with at least two cell cavities 111, and each cell cavity 111 corresponds one-to-one with the insertion port 13 on the outer shell 1. This means that after each cell 2 is inserted through the corresponding insertion port 13, it will enter the specific cell cavity 111 for installation and fixation, ensuring the independence and accuracy of the cell 2 installation.

[0058] The partition ribs 112 separate the individual cell cavities 111, preventing chain reactions caused by short circuits or overheating between the cells 2, thus reducing the risk of safety accidents in the battery module. Simultaneously, the two ends of the partition ribs 112 are connected to the two opposite side walls of the housing base 11, effectively adding a reinforcing beam structure from within the housing base 11. This significantly enhances the overall strength of the housing 1, improving its bending and compressive resistance, and providing better protection for the internal cells 2.

[0059] The partition rib 112 is provided with a hollow groove, which is equivalent to a hollow beam structure. It has a larger surface support size, higher strength, and at the same time reduces material consumption and weight.

[0060] In one embodiment, reference is made to Figure 5 The base 11 of the shell is provided with a first reinforcing mesh 113 located on the bottom wall of the cell cavity 111; and / or, the bottom side of the top cover 12 of the shell is provided with a second reinforcing mesh corresponding to the cell cavity 111.

[0061] If a first reinforcing rib mesh 113 is provided on the bottom wall of the cell cavity 111 of the housing base 11, the first reinforcing rib mesh 113 is usually composed of crisscrossing ribs. These ribs are integrally formed with the housing base 11 and distributed in a specific area of ​​the bottom wall of the cell cavity 111 to form a grid structure with a certain strength and rigidity.

[0062] If a second reinforcing mesh corresponding to the cell cavity 111 is provided on the bottom side of the shell cover 12, its structure and arrangement are similar to the first reinforcing mesh 113. It is also a mesh structure composed of ribs, located on the bottom side of the shell cover 12 at the position corresponding to the cell cavity 111, and connected to the main body of the shell cover 12.

[0063] The reinforcing mesh, through the distribution and arrangement of the ribs, changes the stress distribution of the shell base 11 and / or shell cover 12. When the battery module is subjected to external pressure, vibration, or other forces, the reinforcing mesh can disperse and bear these forces, transferring the stress to the entire structure and avoiding local stress concentration that could lead to shell deformation or damage. The mutual support between the ribs increases the shell's resistance to bending and torsion in the directions perpendicular to and parallel to the ribs.

[0064] In one embodiment, a foolproof groove 23 is provided on one side of the battery cell 2, and a foolproof protrusion is provided on the inner side of the outer casing 1. The cooperation between the foolproof groove 23 and the foolproof protrusion provides alignment for the insertion of the battery cell 2.

[0065] When the battery cell 2 is inserted into the battery cell cavity 111 of the housing 1 through the insertion port 13, the anti-misalignment groove 23 and the anti-misalignment protrusion begin to interact. Due to the specific shape and positional relationship between the anti-misalignment groove 23 and the anti-misalignment protrusion, during the insertion process, the anti-misalignment protrusion slides along the anti-misalignment groove 23, guiding the battery cell 2 to accurately reach the predetermined installation position. This guiding effect is similar to the cooperation of a track and a slider, ensuring that the battery cell 2 will not have directional errors or positional deviations.

[0066] The main purpose of the foolproof design is to prevent incorrect installation of the battery cell 2. If the battery cell 2 is inserted in the wrong direction or position, the foolproof protrusion will not be able to properly match the foolproof groove 23, and the battery cell 2 will not be able to be inserted smoothly or will be significantly obstructed. This reminds the operator that the battery cell 2 is installed incorrectly, thus avoiding problems such as damage to the battery cell 2 and poor connection of the power supply circuit caused by incorrect installation.

[0067] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, 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 a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0068] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0069] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0070] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A battery module, characterized by, include: The outer casing (1) has an insertion port (13) and a terminal port (17) on its side; wherein, a threaded hole (14) is provided around the outer periphery of the insertion port (13); The power supply circuit is located inside the housing (1) and includes an input terminal (41), wires and an output terminal (42). The output terminal (42) is exposed through the terminal port (17) to provide the function of interfacing with external devices. The battery cell (2) includes a battery cell body (21) and an end plate (22) located on one side of the battery cell body (21). The battery cell body (21) can be inserted into the housing (1) through the insertion port (13) and complete the docking with the input terminal (41). The end plate (22) is provided with a fixing hole (221) corresponding to the threaded hole (14). The end plate (22) abuts against the outer surface of the housing (1). The hand screw (3) passes through the fixing hole (221) and is threaded to the threaded hole (14) to fix the battery cell (2).

2. The battery module of claim 1, wherein, The hand-tightening screw (3) includes a screw body (31) and a handle (32). The screw body (31) includes a nut. The handle (32) is rotatably connected to the nut. The handle (32) can be rotated to transform between unfolding and folding.

3. The battery module of claim 2, wherein, The outer surface of the end plate (22) is provided with a recess (222), and the nut is embedded in the recess (222); wherein, the handle (32) is placed in the recess (222) in the folded state and extends out of the recess (222) in the unfolded state.

4. The battery module of claim 1, wherein, The outer wall of the outer casing (1) is provided with a first sealing ring (15) surrounding the insertion port (13), and the end plate (22) is in close contact with the first sealing ring (15) to achieve a seal.

5. The battery module of claim 1, wherein, The outer casing (1) is provided with at least two insertion ports (13), and each insertion port (13) is for inserting one battery cell (2).

6. The battery module of claim 5, wherein, The outer casing (1) includes a casing base (11) and a casing top cover (12). The casing base (11) is provided with a mounting cavity for accommodating the power supply circuit and the battery cell (2). The top of the mounting cavity is open. The casing top cover (12) covers the top side of the casing base (11) to close the mounting cavity.

7. The battery module of claim 6, wherein, The top of the housing base (11) is provided with a second sealing ring (16) surrounding the mounting cavity, and the housing cover (12) is in close contact with the second sealing ring (16) to achieve a seal.

8. The battery module of claim 6, wherein, The mounting cavity includes at least two cell cavities (111), each of which is corresponding to the insertion port (13). A partition rib (112) is provided between any two adjacent cell cavities (111), and the two ends of the partition rib (112) are respectively connected to the two opposite side walls of the shell base (11). A hollow groove extending in the vertical direction is provided in the partition rib (112).

9. The battery module of claim 8, wherein, The shell base (11) is provided with a first reinforcing mesh (113) located on the bottom wall of the cell cavity (111); and / or, the bottom side of the shell cover (12) is provided with a second reinforcing mesh corresponding to the cell cavity (111).

10. The battery module of claim 1, wherein, The battery cell (2) has a foolproof groove (23) on one side and a foolproof protrusion on the inner side of the outer casing (1). The cooperation between the foolproof groove (23) and the foolproof protrusion provides alignment for the insertion of the battery cell (2).

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