Battery box

Abstract

The utility model belongs to the technical field of batteries, and discloses a battery box, a cover body comprises a covering part and an inserting part which are connected, the covering part circumferentially protrudes out of the inserting part, the inserting part extends into a shell from the opening end of the shell, the bottom of the covering part is circumferentially lapped on the end face of the opening end, a battery is arranged in an inner cavity formed by the shell and the cover body, and the battery is arranged in the inner cavity. The cover body is directly buckled at the opening end of the shell, when the battery is assembled or replaced, the cover body can be directly inserted and pulled, the operation is convenient, in addition, the sealing groove is formed in the side wall of the insertion part in the circumferential direction, the sealing ring is embedded in the sealing groove, the sealing ring abuts against the inner wall of the shell in the circumferential direction, sealing between the shell and the cover body is achieved, the waterproof and dustproof level of the battery box is improved, and the service life of the battery box is prolonged. The locking assembly comprises a locking block rotationally installed on the shell, a locking groove is formed in one side of the insertion part, a penetrating groove is formed in the position, close to the opening end, of one side of the shell, and the locking block rotates to stretch into the penetrating groove and is clamped in the locking groove or rotates to be separated from the locking groove, so that disassembly and assembly are convenient.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery box. Background Technology

[0002] Battery boxes serve as portable power sources, supplying power to devices such as mobile phones, tablets, and lamps. By encapsulating the battery in a protective casing, they prevent physical damage or environmental factors (such as moisture and dust) from affecting the battery. Some battery boxes also integrate circuit protection functions to prevent overcharging and over-discharging, thereby extending battery life. In scenarios requiring long-term offline operation, such as geological exploration and field research, battery boxes can provide reliable power for professional equipment.

[0003] Existing battery box devices are often used outdoors, where the complex environment makes it easy for dust or moisture to enter the battery box, causing short circuits. In addition, existing battery box devices also have the problem of inconvenient battery replacement. Utility Model Content

[0004] The purpose of this utility model is to provide a battery box with a high level of waterproof and dustproof protection, and easy replacement of the internal battery.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A battery case for holding batteries, comprising:

[0007] A housing assembly includes a housing and a cover. One end of the housing is an open end. The cover includes a covered portion and an insertion portion connected together. The covered portion protrudes circumferentially from the insertion portion. A sealing groove is formed circumferentially on the side wall of the insertion portion. A sealing ring is embedded in the sealing groove. The insertion portion extends into the housing from the open end. The bottom of the covered portion circumferentially rests on the end face of the open end, and the sealing ring circumferentially abuts against the inner wall of the housing. The battery is installed in the inner cavity formed by the housing and the cover.

[0008] A locking assembly includes a locking block rotatably mounted on the housing. A locking groove is provided on one side of the insertion portion, and a through groove is provided on one side of the housing near the opening end. The locking block is configured to rotate to extend into the through groove and engage in the locking groove, or to disengage from the locking groove.

[0009] Preferably, the locking assembly further includes a button, a rotating shaft, and a locking spring. A mounting groove is formed by stamping on one side of the housing. The through groove communicates with the bottom of the mounting groove. The button is rotatably disposed in the mounting groove. The rotating shaft is disposed below the through groove. The button is rotatably connected to the rotating shaft, and the two ends of the rotating shaft are respectively rotatably inserted into the two opposite groove walls of the mounting groove. The locking spring is disposed below the rotating shaft, and the two ends of the locking spring respectively abut against the bottom of the mounting groove and the button. The locking block is disposed on the button.

[0010] Preferably, the bottom of the mounting groove is provided with a connecting post, a first limiting ring is coaxially provided on the outer side of the connecting post, the button is provided with a second limiting ring, one end of the locking spring is sleeved on the connecting post and limited to the first limiting ring, and the other end of the locking spring is limited to the second limiting ring.

[0011] Preferably, the two opposite walls of the mounting groove are provided with mounting holes, and the opposite sides of the button are provided with connecting holes. One end of the rotating shaft passes through one of the connecting holes and is rotatably inserted into one of the mounting holes, and the other end of the rotating shaft passes through the other connecting hole and is rotatably inserted into the other mounting hole.

[0012] Preferably, the battery box further includes a limiting member disposed in the inner cavity, the limiting member being detachably connected to the housing, and the battery being radially limited between the limiting member and the housing.

[0013] Preferably, the limiting member includes an abutment plate, a bottom plate, and two opposing limiting plates. The bottom plate and the two limiting plates are connected in a U-shape and are both connected to the abutment plate. The battery is limited between the abutment plate, the inner wall of the housing, and the two limiting plates.

[0014] Preferably, the width of the abutment plate is greater than the distance between the two limiting plates, and a connecting plate is provided on the opposite side of the two limiting plates. Connecting members are provided on the inner walls of the opposite sides of the housing, and the two connecting plates and the two connecting members are screwed together in a one-to-one correspondence.

[0015] Preferably, the battery box further includes a first terminal spring and a second terminal spring. The abutment plate includes a first plate and a second plate that are bent. The bottom plate and the limiting plate are both connected to the side of the first plate away from the second plate. The first terminal spring is installed on the side of the insertion part away from the cover part, and the first terminal spring is electrically connected to one of the terminals of the battery and the second plate. An extension plate is provided below each of the two limiting plates. The two extension plates are of equal height and spaced apart. The second terminal spring is inserted into the installation space formed by the two extension plates and the bottom plate, and the second terminal spring abuts against the other terminal of the battery.

[0016] Preferably, a snap-fit ​​plate is installed on the side of the insertion part away from the cover part, one end of the first electrode spring is pressed against one of the terminals of the battery, the other end of the first electrode spring is abutted against the snap-fit ​​plate through a female pin, one end of the female pin is connected to the snap-fit ​​plate, a male pin is installed at the bottom of the second plate, and the other end of the female pin passes through the second plate and is inserted into the male pin.

[0017] Preferably, the insertion part is annular, and the inner ring of the insertion part is provided with multiple buckles at intervals. The top of the snap-fit ​​plate is provided with multiple snap-fit ​​blocks, and the multiple snap-fit ​​blocks are snapped into the multiple buckles one by one.

[0018] The beneficial effects of this utility model are:

[0019] This utility model provides a battery box for accommodating batteries, including a housing assembly and a locking assembly. The housing assembly includes a shell and a cover. One end of the shell is an open end. The cover includes a covered portion and an insertion portion connected together. The covered portion protrudes circumferentially from the insertion portion, and the insertion portion extends into the shell from the open end. The bottom of the covered portion circumferentially rests on the end face of the open end. The battery is installed in the cavity formed by the shell and the cover. By directly fastening the cover to the open end of the shell, the cover can be directly inserted and removed when assembling or replacing the battery, making operation convenient. Furthermore, the insertion... A sealing groove is formed on the circumferential side wall of the insertion part, and a sealing ring is embedded in the sealing groove. The sealing ring is circumferentially pressed against the inner wall of the housing. The sealing ring is interference-fitted into the side wall of the insertion part to achieve a seal between the housing and the cover, which improves the waterproof and dustproof rating of the battery box. The locking assembly includes a locking block that is rotatably mounted on the housing. A locking groove is provided on one side of the insertion part, and a through groove is formed on one side of the housing near the opening end. The locking block is configured to rotate to extend into the through groove and engage in the locking groove to lock the housing and the cover, or to disengage from the locking groove to unlock the housing and the cover. Attached Figure Description

[0020] Figure 1 This is an exploded view of the battery box provided in an embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram showing the disassembly of the cover and sealing ring provided in an embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram showing the disassembled shell and locking assembly provided in an embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram of the locking assembly provided in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the limiting member provided in this embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the shell provided in an embodiment of the present utility model;

[0026] Figure 7 This is a schematic diagram of the snap-fit ​​plate provided in an embodiment of the present invention.

[0027] In the picture:

[0028] 10. Battery; 1. Housing; 11. Through slot; 12. Mounting slot; 13. Connecting post; 14. First limiting ring; 15. Connecting piece; 2. Cover; 21. Covering part; 22. Insertion part; 221. Sealing groove; 222. Locking groove; 223. Buckle; 3. Sealing ring; 41. Locking block; 42. Button; 421. Second limiting ring; 43. Rotating shaft; 44. Locking spring; 5. Limiting piece; 51. Abutting plate; 511. First plate; 512. Second plate; 52. Base plate; 53. Limiting plate; 54. Connecting plate; 55. Extension plate; 6. First terminal spring; 7. Second terminal spring; 8. Snap-fit ​​plate; 81. Snap-fit ​​block; 9. Female connector pin; a. Male connector pin. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly 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.

[0031] 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.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] Existing battery box devices have the following drawbacks: 1. They are often used outdoors, where the complex outdoor environment can easily cause dust or moisture to enter the battery box, leading to short circuits; 2. Replacing the batteries inside the battery box is inconvenient and inefficient.

[0034] Therefore, this embodiment provides a battery box with a high level of waterproof and dustproof protection, and convenient for replacing the internal batteries.

[0035] Please see Figures 1 to 7 The battery box includes a housing assembly and a locking assembly. The housing assembly includes a snap-fit ​​housing 1 and a cover 2. One end of the housing 1 is an open end, and the cover 2 is snapped onto the open end of the housing 1. The housing 1 and the cover 2 then cooperate to form an inner cavity, in which the battery 10 is installed. Furthermore, a sealing ring 3 is provided on the contact surface of the housing 1 and the cover 2. The locking assembly is used to lock or unlock the housing 1 and the cover 2.

[0036] This embodiment uses a locking component to lock or unlock the housing 1 and the cover 2, and sets the housing 1 and the cover 2 to be snap-fit ​​assembly, which improves the convenience of assembling or replacing the battery 10. In addition, a sealing ring 3 is set on the contact surface of the housing 1 and the cover 2. The sealing ring 3 with interference fit achieves the seal between the housing 1 and the cover 2, which improves the waterproof and dustproof level of the battery box.

[0037] Please see Figure 2The cover 2 includes a covered part 21 and an insertion part 22 connected together. The outer side of the covered part 21 protrudes circumferentially from the insertion part 22. The insertion part 22 extends into the interior of the housing 1 from the open end of the housing 1 until the bottom of the covered part 21 is circumferentially attached to the end face of the open end, thereby realizing the snap-fit ​​assembly between the cover 2 and the housing 1.

[0038] For example, a sealing groove 221 is provided circumferentially on the side wall of the insertion part 22, and a sealing ring 3 is embedded in the sealing groove 221. When the insertion part 22 is inserted into the housing 1, the sealing ring 3 is always circumferentially abutting against the inner wall of the housing 1. That is, the sealing ring 3 is interference-fitted in the sealing groove 221, thereby achieving a seal between the housing 1 and the cover 2 and improving the waterproof and dustproof level of the battery box.

[0039] In this embodiment, the cover 2 is directly fastened to the open end of the housing 1. When assembling or replacing the battery 10, the cover 2 can be directly inserted and removed, making the operation convenient. In addition, a sealing ring 3 is interference-fitted into the side wall of the insertion part 22 to achieve a seal between the housing 1 and the cover 2, thereby improving the waterproof and dustproof level of the battery box.

[0040] Further, please refer to Figures 2 to 4 The insertion part 22 has a locking groove 222 on one side, and a through groove 11 is formed on one side of the housing 1 near the opening. The locking assembly includes a locking block 41 rotatably mounted on this side of the housing 1. When the housing 1 and the cover 2 are locked, the locking block 41 rotates to extend into the through groove 11 and engage with the locking groove 222. When the housing 1 and the cover 2 are unlocked, the locking block 41 rotates to disengage from the locking groove 222 or simultaneously disengages from both the locking groove 222 and the through groove 11. Preferably, the depth of the locking groove 222 is 1-3 mm, and in this embodiment, the depth of the locking groove 222 is 2 mm.

[0041] For example, please continue reading Figures 2 to 4 The locking assembly also includes a button 42, a rotating shaft 43, and a locking spring 44. A mounting groove 12 is formed by stamping on one side of the housing 1. A through groove 11 connects to the bottom of the mounting groove 12. The button 42 is rotatably mounted in the mounting groove 12. A locking block 41 is positioned above the button 42 and directly opposite the bottom of the mounting groove 12. The rotating shaft 43 is positioned below the through groove 11. The button 42 is rotatably connected to the rotating shaft 43, and both ends of the rotating shaft 43 are rotatably inserted into two opposite walls of the mounting groove 12, thereby achieving a rotatable connection between the button 42, the locking block 41, and the housing 1. Furthermore, the locking spring 44 is positioned below the rotating shaft 43, with both ends abutting against the bottom of the mounting groove 12 and the button 42, respectively. The locking spring 44 is always in a compressed state.

[0042] With the above settings, without external force, under the action of the locking spring 44, the locking block 41 always extends into the through groove 11 and is locked in the locking groove 222, and the housing 1 and the cover 2 are always in a locked state. By pressing the button 42, the force of the locking spring 44 is overcome, and the button 42 drives the locking block to rotate and then disengage from the locking groove 222, switching the housing 1 and the cover 2 to the unlocked state, so that the cover 2 can be directly inserted or removed, and then the battery 10 can be installed or replaced.

[0043] In some feasible embodiments, the two opposite groove walls of the mounting groove 12 are provided with mounting holes, and the opposite sides of the button 42 are provided with connection holes. The two mounting holes correspond one-to-one with the two connection holes. One end of the rotating shaft 43 passes through one of the connection holes and is rotatably inserted into one of the mounting holes. The other end of the rotating shaft 43 passes through the other connection hole and is rotatably inserted into the other mounting hole. Thus, the rotating shaft 43 realizes the rotational connection between the button 42, the locking block 41 and the housing 1.

[0044] Please continue reading. Figure 3 and Figure 4 In this embodiment, a connecting post 13 is provided at the bottom of the mounting slot 12, and a first limiting ring 14 is coaxially provided on the outside of the connecting post 13. A second limiting ring 421 is provided on the button 42. Based on the above structure, one end of the locking spring 44 is sleeved on the connecting post 13, and one end of the locking spring 44 is simultaneously limited by the first limiting ring 14, while the other end of the locking spring 44 is limited by the second limiting ring 421. Through the above structural design, the locking spring 44 is prevented from falling off during use, improving the structural stability of the locking spring 44, and thus improving the reliability of the battery box.

[0045] Further, please refer to Figure 1 In this embodiment, a limiting member 5 is installed in the inner cavity. The limiting member 5 is detachably connected to the housing 1. The battery 10 is installed and radially limited between the limiting member 5 and the housing 1. By setting the limiting member 5, the housing 1 is prevented from violently impacting the battery 10 during movement, thereby improving safety performance.

[0046] For example, please refer to Figure 1 and Figure 5 The limiting member 5 includes an abutment plate 51, a bottom plate 52, and two opposing limiting plates 53. The bottom plate 52 and the two limiting plates 53 are connected in a U-shape, and the bottom plate 52 and the two limiting plates 53 are all connected to the same side of the abutment plate 51. The battery 10 is limited to the abutment plate 51, one side of the inner wall of the housing 1, and between the two limiting plates 53.

[0047] This embodiment provides a structure in which the limiting member 5 and the housing 1 are detachably connected. For example, please refer to [link / reference]. Figure 5 and Figure 6The inner walls of the opposite sides of the housing 1 are provided with connectors 15. The two limiting plates 53 are provided with connecting plates 54 on opposite sides. The width of the abutment plate 51 is greater than the distance between the two limiting plates 53, so as to ensure that the two connecting plates 54 can face the two connectors 15. Furthermore, the connecting plate 54 has through holes. The connector 15 is a hollow structure and has internal threads. A screw is used to pass through the through hole and screw it to the corresponding connector 15, thereby realizing the detachable connection between the limiting member 5 and the housing 1.

[0048] Optionally, multiple connectors 15 can be provided on the inner wall of each side of the housing 1, and multiple through holes can be opened on the connecting plate 54 to improve the connection strength between the limiting member 5 and the housing 1.

[0049] Preferably, one side of the connecting plate 54 is connected to the abutment plate 51 along its width direction, thereby improving the overall structural stability of the limiting member 5 and preventing the limiting member 5 from shaking inside the housing 1.

[0050] For further information, please refer to [link / reference]. Figure 1 The battery box also has a first terminal spring 6 and a second terminal spring 7. The first terminal spring 6 is electrically connected to one of the terminals of the battery 10 and the limiting member 5, and the second terminal spring 7 is electrically connected to the other terminal of the battery 10 and the limiting member 5, thereby realizing the conduction of the two terminals of the battery 10.

[0051] In this embodiment, both the first electrode spring 6 and the second electrode spring 7 are made of stainless steel.

[0052] For example, please refer to Figure 1 and Figure 5 The abutment plate 51 includes a first plate 511 and a second plate 512 that are bent. The bottom plate 52 and the limiting plate 53 are both connected to the side of the first plate 511 away from the second plate 512. The second plate 512 is connected to the top of the first plate 511. The first terminal spring 6 is installed on the side of the insertion part 22 away from the cover part 21. One end of the first terminal spring 6 abuts against one of the terminals of the battery 10, and the other end is connected to the second plate 512, thereby realizing the electrical connection of one of the terminals of the battery 10 to the limiting member 5.

[0053] One end of the first terminal spring 6 is connected to one of the terminals of the battery 10. A snap-fit ​​plate 8 is installed on the side of the insertion part 22 away from the cover part 21. The other end of the first terminal spring 6 is abutted against the snap-fit ​​plate 8 through the female pin 9. The snap-fit ​​plate 8, the first terminal spring 6 and the female pin 9 are coaxially provided with through holes. A connector is used to pass through the through holes on the snap-fit ​​plate 8, the first terminal spring 6 and the female pin 9 in sequence, thereby connecting one end of the female pin 9 to the snap-fit ​​plate 8 and preventing the first terminal spring 6 from shifting. Furthermore, a male pin a is installed at the bottom of the second plate 512. The other end of the female pin 9 is passed through the second plate 512 and inserted into the male pin a. Through the above settings, on the one hand, the structural stability of the first pole spring 6 is improved; on the other hand, since the female pin 9 is connected to the cover 2, the male pin a is connected to the limiting member 5, and the limiting member 5 is connected to the housing 1, the locking strength between the housing 1 and the cover 2 is improved through the cooperation of the female pin 9 and the male pin a.

[0054] Optionally, please refer to Figure 2 and Figure 7 The insertion part 22 has a ring-shaped structure. Multiple buckles 223 are arranged at intervals around the inner ring of the insertion part 22. At the same time, multiple snap-fit ​​blocks 81 are arranged on the top of the snap-fit ​​plate 8. The multiple snap-fit ​​blocks 81 are controlled to snap into the multiple buckles 223 one by one, thereby fixing the snap-fit ​​plate 8.

[0055] For example, the snap-fit ​​block 81 includes a connecting rod and a wedge block. One end of the connecting rod is connected to the snap-fit ​​plate 8, and the other end is connected to the wedge block. The snap-fit ​​plate 8 is fastened to the side of the insertion part 22 away from the cover part 21, and multiple wedge blocks are snapped into multiple buckles 223 one by one.

[0056] Further, please refer to Figure 5 Below each of the two limiting plates 53, there is an extension plate 55. The two extension plates 55 are set at the same height and extend towards each other with a certain interval. The second pole piece 7 is inserted into the installation space formed by the two extension plates 55 and the base plate 52. It should be noted that the second pole piece 7 is interference-fitted in the installation space. Preferably, the interference fit size is 0.2mm. Furthermore, the second pole piece 7 is provided with a protruding stamp, which abuts against the other pole of the battery 10. Preferably, the height of the protruding stamp is 2mm.

[0057] Through the above configuration, the first electrode spring 6 and the second electrode spring 7 achieve conduction between the two electrodes of the battery 10.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery case for housing a battery (10), characterized by, The utility model provides a battery pack, including: The shell assembly includes the casing (1) and the cover (2), one end of casing (1) is open end, the cover (2) includes the cover set part (21) and the insertion part (22) of connection, the cover set part (21) circumferential protrude from the insertion part (22), the side wall of insertion part (22) is circumferential and is set up sealing groove (221), the sealing ring (3) is embedded in sealing groove (221), the insertion part (22) is by open end and stretches into casing (1), the bottom of cover set part (21) circumferential is set up on the end face of open end, and the sealing ring (3) circumferential is in close contact with the inner wall of casing (1), and the battery (10) is installed in the inner chamber formed by casing (1) and cover (2); The locking assembly includes a locking block (41) rotatably mounted on the casing (1), one side of the insertion part (22) is provided with a locking groove (222), one side of the casing (1) is provided with a through groove (11) near the open end, the locking block (41) is configured to rotate to extend into the through groove (11) and be clamped in the locking groove (222), or, be separated from the locking groove (222).

2. The battery pack of claim 1, wherein, The locking assembly further includes a key (42), a rotating shaft (43) and a locking spring (44), one side of the casing (1) is stamped to form a mounting groove (12), the through groove (11) communicates with the groove bottom of the mounting groove (12), the key (42) is rotatably arranged in the mounting groove (12), the rotating shaft (43) is arranged below the through groove (11), the key (42) is rotatably connected to the rotating shaft (43), and both ends of the rotating shaft (43) are rotatably inserted into two opposite groove walls of the mounting groove (12), the locking spring (44) is arranged below the rotating shaft (43), and both ends of the locking spring (44) are abutted against the groove bottom of the mounting groove (12) and the key (42), respectively, and the locking block (41) is arranged on the key (42).

3. A battery pack according to claim 2, wherein The groove bottom of the mounting groove (12) is provided with a connecting column (13), the outer side of the connecting column (13) is coaxially provided with a first limiting ring (14), the key (42) is provided with a second limiting ring (421), one end of the locking spring (44) is sleeved on the connecting column (13) and limited by the first limiting ring (14), and the other end of the locking spring (44) is limited by the second limiting ring (421).

4. The battery pack of claim 2, wherein, Both opposite groove walls of the mounting groove (12) are provided with mounting holes, opposite sides of the key (42) are provided with connecting holes, one end of the rotating shaft (43) penetrates one of the connecting holes and is rotatably inserted into one of the mounting holes, and the other end of the rotating shaft (43) penetrates the other connecting hole and is rotatably inserted into the other mounting hole.

5. A battery pack according to any one of claims 1-4, characterized in that The battery box further comprises a limiting piece (5) arranged in the inner cavity, which is detachably connected to the shell (1), and the battery (10) is radially limited between the limiting piece (5) and the shell (1).

6. A battery pack according to claim 5, wherein The limiting piece (5) comprises an abutting plate (51), a bottom plate (52) and two opposite limiting plates (53), the bottom plate (52) and the two limiting plates (53) are connected in a U shape and are connected to the abutting plate (51), and the battery (10) is limited between the abutting plate (51), the inner wall of the shell (1) and the two limiting plates (53).

7. A battery pack according to claim 6, wherein The width of the abutting plate (51) is greater than the spacing of the two limiting plates (53), the two limiting plates (53) are provided with connecting plates (54) on the sides away from each other, and the inner walls of the opposite sides of the shell (1) are provided with connecting pieces (15), and the two connecting plates (54) and the two connecting pieces (15) are correspondingly screwed.

8. The battery pack of claim 6, wherein, The battery box further comprises a first pole spring (6) and a second pole spring (7), the abutting plate (51) comprises a first plate (511) and a second plate (512) arranged in a bent manner, the bottom plate (52) and the limiting plate (53) are connected to one side of the first plate (511) away from the second plate (512), the first pole spring (6) is installed on one side of the insertion part (22) away from the cover setting part (21), and the first pole spring (6) is electrically connected to one of the poles of the battery (10) and the second plate (512), the lower sides of the two limiting plates (53) are provided with extension plates (55), the two extension plates (55) are arranged in a high and spaced manner, the second pole spring (7) is inserted into the mounting space formed by the two extension plates (55) and the bottom plate (52), and the second pole spring (7) abuts against the other pole of the battery (10).

9. A battery pack according to claim 8, wherein, The insertion part (22) is installed on one side of the insertion part (22) away from the cover setting part (21), one end of the first pole spring (6) abuts against one of the poles of the battery (10), the other end of the first pole spring (6) abuts against the clamping plate (8) through a female pin (9), one end of the female pin (9) is connected to the clamping plate (8), a male pin (a) is installed at the bottom of the second plate (512), and the other end of the female pin (9) passes through the second plate (512) and is inserted into the male pin (a).

10. The battery pack of claim 9, wherein, The insertion part (22) is annular, and a plurality of buckles (223) are arranged on the inner circle of the insertion part (22) in a circumferential direction, a plurality of clamping blocks (81) are arranged on the top of the clamping plate (8) in a corresponding manner, and the plurality of clamping blocks (81) are correspondingly clamped on the plurality of buckles (223).

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