Battery needling device

Abstract

The utility model relates to the technical field of batteries, and discloses a battery needling device which comprises a rack, a driving assembly, a needling assembly and a clamping assembly. The driving assembly is arranged on the rack and comprises a supporting piece, a lead screw and a sliding block, the lead screw extends in the first direction, the lead screw is rotatably arranged on the supporting piece, the lead screw penetrates through the sliding block and is in threaded connection with the sliding block, and the sliding block is slidably arranged on the rack in the first direction. The needling assembly is arranged on a sliding block of the driving assembly, the clamping assembly is arranged at one end, in the first direction, of the driving assembly and used for fixing a battery, the battery is arranged in the direction perpendicular to the first direction, and the needling assembly faces the battery; the lead screw is driven to rotate to drive the needling assembly located on the sliding block to move towards the battery fixed by the clamping assembly, so that needling detection of the battery is achieved. The battery needling device is simple in structure, a user can manually operate the lead screw to drive the needling assembly to conduct needling detection on a battery, operation is convenient, and the use environment is not limited.

Description

Technical Field

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

[0002] The safety of electric vehicle batteries is directly related to the lives of drivers and passengers. The nail penetration test verifies the stability of the battery under physical damage, ensuring the battery system can be safely shut down in an accident and reducing the risk of fire or explosion. However, existing nail penetration devices are complex in structure, inconvenient to move, and cumbersome to operate, making them only suitable for laboratory use. They cannot be freely transported to meet the needs of production testing, thus limiting their applicability to some other application scenarios.

[0003] Therefore, there is an urgent need for a battery puncture device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a battery needle penetration device that is simple in structure, easy to operate, and convenient to transport, making it suitable for various application scenarios.

[0005] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0006] A battery needle-punching device is provided, including a frame and a drive assembly disposed on the frame. The drive assembly includes a support, a lead screw, and a slider. The lead screw extends along a first direction and is rotatably disposed on the support. The lead screw passes through the slider and is threadedly connected to the slider. The slider is slidably disposed on the frame along the first direction.

[0007] The needle-punching component is disposed on the slider;

[0008] A clamping assembly is disposed at one end of the driving assembly in the first direction for fixing the battery, the battery being disposed perpendicular to the first direction, and the needle-piercing assembly being oriented toward the battery.

[0009] Optionally, the clamping assembly includes a stop plate, a limiting block, and a quick clamp. The stop plate is perpendicular to the first direction and located on one side of the needle-punching assembly. The quick clamp is rotatably mounted on the stop plate. The pressing part of the quick clamp and the limiting block are both located on the side of the stop plate closer to the needle-punching assembly. The limiting block and the pressing part are used to fix the battery on the stop plate.

[0010] Optionally, the limiting block is provided with a strip groove extending along the first direction, and the limiting block is fixed to the side of the abutment near the needle-punching assembly through the strip groove in an adjustable position.

[0011] Optionally, the quick clamp further includes a fixing part and a rotating part. The fixing part is disposed on the abutment plate. The first end of the rotating part is rotatably connected to the fixing part. The second end of the rotating part is provided with the pressing part. The middle section of the rotating part is connected to the fixing part through an elastic member. The rotating part can rotate around the first end so that the pressing part moves away from or closer to the abutment plate.

[0012] Optionally, there are multiple quick clamps, which are spaced apart on the abutment along a third direction, which is perpendicular to the first direction.

[0013] Optionally, the needle assembly includes a support block, a needle, and a fixing member. The support block is provided with a first hole and a second hole. The second hole is perpendicular to the first hole and communicates with the first hole. The first hole is located on the side of the support block facing the clamping assembly. The needle is inserted into the first hole. The fixing member is threaded into the second hole and presses against the needle to fix the needle in the first hole.

[0014] Optionally, multiple first holes and second holes are provided at intervals along the second direction, with each first hole corresponding to at least one second hole in communication, and the spikes corresponding to at least one first hole being inserted into the second hole, wherein the second direction is perpendicular to the first direction.

[0015] Optionally, it may also include a guide assembly, the guide assembly including a guide rail extending along the first direction, the guide rail being slidably engaged with the slider.

[0016] Optionally, two guide rails are spaced apart along a third direction. The slider includes a first part and two second parts. The two second parts are respectively disposed on both sides of the first part in the third direction. The first part is provided with a rotating hole, and the lead screw passes through the rotating hole. The second part is provided with a sliding groove, and the guide rail passes through the sliding groove. The third direction is perpendicular to the first direction.

[0017] Optionally, the drive assembly further includes a handwheel connected to the lead screw, and rotating the handwheel causes the lead screw to rotate around the first direction.

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

[0019] The battery needle penetration device proposed in this utility model includes a frame, a drive assembly, a needle penetration assembly, and a clamping assembly. The drive assembly is mounted on the frame and includes a support member, a lead screw, and a slider. The lead screw extends along a first direction and is rotatably mounted on the support member. The lead screw passes through the slider and is threadedly connected to it. The slider is slidably mounted on the frame along the first direction. The needle penetration assembly is mounted on the slider of the drive assembly. The clamping assembly is located at one end of the drive assembly along the first direction and is used to fix the battery. The battery is positioned perpendicular to the first direction, and the needle penetration assembly faces the battery. Rotating the lead screw drives the needle penetration assembly located on the slider to move towards the battery fixed by the clamping assembly, thereby achieving needle penetration detection of the battery. The drive assembly of this battery needle penetration device has a simple structure. Users can manually operate the lead screw to drive the needle penetration assembly to perform needle penetration detection of the battery. It is easy to operate, unrestricted by the operating environment, and the drive assembly, clamping assembly, and needle penetration assembly are all located on the frame, facilitating the overall transport of the battery needle penetration device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the battery needle penetration device provided in this embodiment of the utility model;

[0021] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is an exploded structural view of the battery needle penetration device provided in an embodiment of the present invention from a first perspective;

[0023] Figure 4 This is an exploded structural diagram of the battery needle penetration device provided in an embodiment of the present invention from a second perspective.

[0024] In the picture:

[0025] 1. Guide assembly; 11. Guide rail;

[0026] 2. Drive assembly; 21. Support component; 22. Lead screw; 23. Slider; 24. Handwheel;

[0027] 3. Needle assembly; 31. Needle; 32. Support block; 321. First hole; 322. Second hole; 33. Fixing component;

[0028] 4. Clamping assembly; 41. Support plate; 42. Limiting block; 421. Strip groove; 43. Quick clamp; 431. Fixing part; 432. Rotating part; 433. Pressing part; 434. Handle part;

[0029] 5. Rack;

[0030] 100. Battery. Detailed Implementation

[0031] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0032] 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.

[0033] 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.

[0034] In the description of this embodiment, the terms "upper," "lower," "left," and "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.

[0035] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1 to 4As shown, this embodiment provides a battery needle-piercing device, including a frame 5, a drive assembly 2, a needle-piercing assembly 3, and a clamping assembly 4. The drive assembly 2 is mounted on the frame 5 and includes a support member 21, a lead screw 22, and a slider 23. The lead screw 22 extends along a first direction and is rotatably mounted on the support member 21. The lead screw 22 passes through the slider 23 and is threadedly connected to it. The slider 23 is slidably mounted on the frame 5 along the first direction. When the lead screw 22 rotates around its own axis, i.e., the first direction, it drives the slider 23 to move along the first direction on the lead screw 22. The needle-piercing assembly 3 is mounted on the slider 23 of the drive assembly 2, so rotation of the lead screw 22 drives the needle-piercing assembly 3 to move. The clamping assembly 4 is mounted at one end of the drive assembly 2 in the first direction and is used to fix a battery 100. The battery 100 is positioned perpendicular to the first direction, and the needle-piercing assembly 3 faces the battery 100. In specific implementation, the drive screw 22 can be rotated to move the needle-piercing assembly 3 located on the slider 23 toward the battery 100 fixed by the clamping assembly 4, thereby realizing the needle-piercing detection of the battery 100. The drive assembly 2 of the battery needle-piercing device provided in this embodiment has a simple structure. The user can manually operate the screw 22 to drive the needle-piercing assembly 3 to perform needle-piercing detection of the battery 100. It is easy to operate, and the use environment is not limited. Moreover, the drive assembly 2, clamping assembly 4, and needle-piercing assembly 3 are all located on the frame 5, which also facilitates the overall transportation of the battery needle-piercing device. In this embodiment, the first direction is Figure 1 The ab direction in the middle.

[0037] Optionally, the drive assembly 2 further includes a handwheel 24, which is connected to one end of the lead screw 22. Rotating the handwheel 24 will drive the lead screw 22 to rotate in a first direction. That is, the battery needle-piercing device provided in this embodiment is a manual needle-piercing device, and the user can adjust the moving position of the needle-piercing assembly 3 by rotating the handwheel 24 a certain number of times. In other embodiments, a drive component can also be set to be connected to the lead screw 22, and the drive component can automatically drive the rotation of the lead screw 22 through a control system. Further, such as Figure 1As shown, the clamping assembly 4 includes a backing plate 41, a limiting block 42, and a quick clamp 43. The backing plate 41 is perpendicular to the first direction and located on one side of the needle-punching assembly 3. The quick clamp 43 is rotatably mounted on the backing plate 41. The pressing part 433 of the quick clamp 43 and the limiting block 42 are both located on the side of the backing plate 41 near the needle-punching assembly 3. The limiting block 42 and the pressing part 433 are used to fix the battery 100 on the backing plate 41. In a specific implementation, the limiting block 42 and the quick clamp 43 are spaced apart in the second direction so as to press the battery 100 on opposite sides in the second direction. The pressing part 433 of the quick clamp 43 is located on the side of the backing plate 41 near the needle-punching assembly 3 and spaced apart from the backing plate 41 in the first direction. The limiting block 42 is located on the side of the backing plate 41 near the needle-punching assembly 3 and is also spaced apart from the backing plate 41 in the first direction, so that the battery 100 can be located between the limiting block 42 and the pressing part 433 and the backing plate 41. In this embodiment, the second direction is... Figure 1 In the direction cd, the second direction is perpendicular to the first direction.

[0038] In addition, the distance between the pressing part 433, the limiting block 42 and the abutment plate 41 in the first direction can be adjusted. Therefore, for batteries 100 of different sizes, the distance between the pressing part 433, the limiting block 42 and the abutment plate 41 in the first direction can be adjusted so that batteries 100 of different thicknesses in the first direction can be fixed on the abutment plate 41. The clamping assembly 4 has a simple structure and can fix batteries 100 of different sizes. When performing a needle penetration test on battery 100, battery 100 can be placed between the abutment plate 41, the limiting block 42, and the pressing part 433. Then, the distance between the limiting block 42, the pressing part 433, and the abutment plate 41 can be adjusted so that the limiting block 42 and the pressing part 433 can fix battery 100 on the abutment plate 41 to prevent battery 100 from shifting during the needle penetration test. Then, the lead screw 22 is driven to rotate, which moves the needle penetration assembly 3 toward battery 100 to achieve the needle penetration test of battery 100. This battery needle penetration device can not only adapt to the needle penetration test of batteries 100 of different sizes, but also has a simple structure and is more convenient to operate.

[0039] To achieve adjustable spacing between the limiting block 42 and the abutment 41 in the first direction, multiple fixing holes can be provided on the limiting block 42, and fixing screws can be passed through different fixing holes each time to fix it in the preset mounting hole of the battery needle piercing device, thereby adjusting the fixed position of the limiting block 42, that is, the spacing between the limiting block 42 and the abutment 41. Alternatively, a strip groove 421 extending along the first direction can be provided on the limiting block 42, and fixing screws can pass through the strip groove 421 to fix it in the preset mounting hole of the battery needle piercing device. By changing the position of the fixing screws passing through the strip groove 421, the spacing between the limiting block 42 and the abutment 41 can be adjusted.

[0040] like Figure 2As shown, in this embodiment, a strip groove 421 is provided on the limiting block 42, thereby enabling the limiting block 42 to be fixed in an adjustable position on the side of the abutment 41 near the needle-punching assembly 3. Furthermore, in this embodiment, to facilitate the assembly of the limiting block 42, an installation platform is provided on the abutment 41. The plane of the installation platform is perpendicular to the plane of the abutment 41. The limiting block 42 is positioned on the installation platform. When the battery 100 is placed between the abutment 41 and the limiting block 42, that is, when the battery 100 is placed between the abutment 41 and the limiting block 42, the battery 100 is also placed on the installation platform. Then, the limiting block 42 can be adjusted to move closer to the abutment 41 to press against the battery 100.

[0041] To achieve adjustable spacing between the pressing part 433 and the abutment plate 41 in the first direction, the pressing part 433 and the abutment plate 41 can be connected by an elastic member. This elastic member ensures that the pressing part 433 always tends to move towards the abutment plate 41. When the battery 100 is placed between the abutment plate 41 and the pressing part 433, a force can be applied to the pressing part 433 towards the side away from the abutment plate 41 to move the pressing part 433 away from the abutment plate 41, thus facilitating the insertion of the battery 100. After the external force is released, the pressing part 433 presses against the battery 100 under the force of the elastic member. Alternatively, the pressing part 433 can be provided with an adjusting post, which is threaded through an adjusting hole on the body of the quick clamp 43. The axis of the adjusting post is the first direction. By rotating the adjusting post, the position of the adjusting post in the adjusting hole can be changed, thereby allowing the adjusting post to move closer to or further away from the abutment plate 41, thus pressing the battery 100 against the abutment plate 41.

[0042] like Figure 1 As shown, in this embodiment, the quick clamp 43 further includes a rotating part 432 and a fixing part 431. The fixing part 431 is disposed on the abutment plate 41 and protrudes towards the needle-punching assembly 3 in a first direction. The first end of the rotating part 432 is rotatably connected to the fixing part 431, and the middle section of the rotating part 432 is connected to the fixing part 431 through an elastic member. This ensures that when the second end of the rotating part 432 moves away from the abutment plate 41, an external force needs to be applied, and after the external force is released, it can automatically reset to move closer to the abutment plate 41. In addition, the second end of the rotating part 432 is provided with a pressing part 433. The rotating part 432 rotates around the first end, so that the pressing part 433 moves away from or closer to the abutment plate 41. Before placing the battery 100, the second end can be rotated away from the abutment plate 41 to increase the distance between the second end and the abutment plate 41.

[0043] Optionally, an adjustment hole is provided at the second end, and the pressing part 433 is an adjustment post. The adjustment post is threaded into the adjustment hole, and rotating the adjustment post can move the adjustment post closer to or further away from the abutment plate 41 in the first direction. That is, in this embodiment, the two methods of adjusting the distance between the pressing part 433 and the abutment plate 41 are combined to expand the adjustment range and accommodate batteries 100 of more sizes.

[0044] like Figure 1 As shown, in this embodiment, the quick clamp 43 also includes a handle 434. One end of the handle 434 is rotatably connected to the fixing part 431, and the middle section of the handle 434 is rotatably connected to the side of the rotating part 432 opposite to the abutment plate 41. When the handle 434 rotates around the fixing part 431, that is, when the handle 434 rotates upward, the rotating part 432 can be driven to rotate upward through the rotating shaft connected to the rotating part 432, thereby causing the pressing part 433 to move away from the abutment plate 41. Alternatively, the handle 434 can be directly connected to the rotating part 432. The handle 434 extends along a first direction. The handle 434 is provided to facilitate the user to rotate the rotating part 432. That is, the user can hold the handle 434 and rotate it upward, which will drive the rotating part 432 to rotate upward synchronously, thereby causing the pressing part 433 to move away from the abutment plate 41.

[0045] Optionally, such as Figure 1 As shown, multiple quick clamps 43 are provided, and the multiple quick clamps 43 are spaced apart on the abutment plate 41 along a third direction. In this embodiment, the third direction is... Figure 1 In the first direction, the third direction is perpendicular to the first direction. When the battery 100 is placed on the battery needle-punching device, the thickness direction of the battery 100 is consistent with the first direction, the width direction of the battery 100 is consistent with the second direction, and the length direction of the battery 100 is consistent with the third direction. Limiting blocks 42 and quick clamps 43 are spaced apart in the second direction to fix the battery 100 on both sides of its width direction. Multiple quick clamps 43 are spaced apart in the length direction of the battery 100 to further increase the number of fixing points in that direction, both to ensure the stability of the battery 100. In this embodiment, the length of the limiting block 42 in the third direction is close to the length of the quick clamps 43 in the third direction, thereby further ensuring the uniformity of pressure on various positions on the battery 100.

[0046] Furthermore, such as Figure 3 As shown, the needle-punching assembly 3 includes a support block 32, a needle 31, and a fixing member 33. The support block 32 has a first hole 321 and a second hole 322. The second hole 322 is perpendicular to and communicates with the first hole 321. The first hole 321 is located on the side of the support block 32 facing the abutment plate 41. The needle 31 is inserted into the first hole 321. The fixing member 33 is threaded into the second hole 322 and presses against the needle 31, thus fixing the needle 31 within the first hole 321. In a specific implementation, the second hole 322 extends along a third direction to the middle section of the first hole 321. While ensuring that the fixing member 33 can abut against the needle 31, adjusting the depth of the needle 31 within the first hole 321 allows the distance between the needle 31 and the abutment plate 41 to be changed while the slider 23 moves a fixed distance, thus adapting to needle-punching detection of batteries 100 of different sizes.

[0047] Optionally, such as Figure 3 As shown, multiple first holes 321 and second holes 322 are spaced apart along the second direction. Each first hole 321 is connected to at least one second hole 322, and each needle 31 is inserted into at least one first hole 321. In specific implementation, the needle 31 can be inserted into the corresponding first hole 321 according to the size and fixed position of the battery 100. According to the need for needle puncture detection, there can be one or more needles 31 fixed on the support block 32, and a fixing member 33 is inserted into the second hole 322 that is connected to the first hole 321 through which the needle 31 is inserted, so as to press the needle 31 against the first hole 321.

[0048] Optionally, the battery needle-piercing device further includes a guide assembly 1, which includes a guide rail 11 extending along a first direction. The guide rail 11 is slidably engaged with the slider 23, and rotation of the lead screw 22 can drive the slider 23 to move on the guide rail 11. In this embodiment, as shown... Figure 4 As shown, guide rail 11 is mounted on frame 5. Two guide rails 11 are spaced apart along a third direction. Slider 23 includes a first part and two second parts. The two second parts are respectively connected to the two sides of the first part in the third direction. The first part has a rotating hole, through which lead screw 22 can rotatably pass. The second part has a sliding groove, through which slider 23 can slide onto guide rail 11. The inner wall of the rotating hole has an internal thread that matches the external thread of lead screw 22. When lead screw 22 rotates, it should be able to drive slider 23 to rotate synchronously. However, due to the guiding and limiting effect of guide rail 11 on slider 23 in the first direction, slider 23 cannot rotate synchronously with lead screw 22. Instead, it moves along guide rail 11 in the first direction. Changing the rotation direction of lead screw 22 can change the movement direction of slider 23 in the first direction, thereby realizing the reciprocating motion of needle piercing assembly 3 in the first direction for multiple battery 100 needle piercing tests.

[0049] In this embodiment, the abutment plate 41 and the support member 21 are both disposed on the frame 5. The support member 21 includes two support plates disposed opposite to each other along the first direction. Support holes are provided on the support plates. The two ends of the lead screw 22 are respectively inserted into the two support holes, and at least one support hole is a through hole so that the end of the lead screw 22 connected to the handwheel 24 can pass through the support plate.

[0050] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A battery needle penetration device, characterized in that, include: A frame (5) and a drive assembly (2) disposed on the frame (5). The drive assembly (2) includes a support (21), a lead screw (22) and a slider (23). The lead screw (22) extends along a first direction and is rotatably disposed on the support (21). The lead screw (22) passes through the slider (23) and is threadedly connected to the slider (23). The slider (23) is slidably disposed on the frame (5) along the first direction. A needle-punching component (3) is disposed on the slider (23); A clamping assembly (4) is disposed at one end of the driving assembly (2) in the first direction for fixing the battery (100), the battery (100) being disposed perpendicular to the first direction, and the needle-piercing assembly (3) being oriented toward the battery (100).

2. The battery needle penetration device according to claim 1, characterized in that, The clamping assembly (4) includes a stop plate (41), a limiting block (42), and a quick clamp (43). The stop plate (41) is perpendicular to the first direction and located on one side of the needle-punching assembly (3). The quick clamp (43) is rotatably mounted on the stop plate (41). The pressing part (433) of the quick clamp (43) and the limiting block (42) are both located on the side of the stop plate (41) close to the needle-punching assembly (3). The limiting block (42) and the pressing part (433) are used to fix the battery (100) on the stop plate (41).

3. The battery needle penetration device according to claim 2, characterized in that, The limiting block (42) is provided with a strip groove (421) extending along the first direction. The limiting block (42) is fixed to the side of the abutment (41) near the needle assembly (3) through the strip groove (421).

4. The battery needle penetration device according to claim 2, characterized in that, The quick clamp (43) further includes a fixing part (431) and a rotating part (432). The fixing part (431) is disposed on the abutment plate (41). The first end of the rotating part (432) is rotatably connected to the fixing part (431). The second end of the rotating part (432) is provided with the pressing part (433). The middle section of the rotating part (432) is connected to the fixing part (431) through an elastic member. The rotating part (432) can rotate around the first end so that the pressing part (433) moves away from or closer to the abutment plate (41).

5. The battery needle penetration device according to claim 2, characterized in that, The quick clips (43) are multiple, and the multiple quick clips (43) are spaced apart on the abutment (41) along a third direction, which is perpendicular to the first direction.

6. The battery needle penetration device according to claim 1, characterized in that, The needle assembly (3) includes a support block (32), a needle (31), and a fixing member (33). The support block (32) is provided with a first hole (321) and a second hole (322). The second hole (322) is perpendicular to the first hole (321) and communicates with the first hole (321). The first hole (321) is located on the side of the support block (32) facing the clamping assembly (4). The needle (31) is inserted into the first hole (321). The fixing member (33) is threaded into the second hole (322) and presses against the needle (31) so that the needle (31) is fixed in the first hole (321).

7. The battery needle penetration device according to claim 6, characterized in that, The first hole (321) and the second hole (322) are both arranged in multiples at intervals along the second direction. Each first hole (321) is connected to at least one second hole (322). The needle (31) is inserted into at least one first hole (321). The second direction is perpendicular to the first direction.

8. The battery needle penetration device according to claim 1, characterized in that, It also includes a guide assembly (1), which includes a guide rail (11) extending along the first direction, the guide rail (11) slidingly engaging with the slider (23).

9. The battery needle penetration device according to claim 8, characterized in that, Two guide rails (11) are spaced apart along a third direction. The slider (23) includes a first part and two second parts. The two second parts are respectively arranged on both sides of the first part along the third direction. A rotating hole is provided on the first part. The lead screw (22) passes through the rotating hole. A sliding groove is provided on the second part. The guide rail (11) passes through the sliding groove. The third direction is perpendicular to the first direction.

10. The battery needle penetration device according to claim 1, characterized in that, The drive assembly (2) further includes a handwheel (24) connected to the lead screw (22). Rotating the handwheel (24) causes the lead screw (22) to rotate around the first direction.

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