Battery steering mechanism

Abstract

The application discloses a battery turning mechanism, which comprises a mounting plate, a plurality of clamps, a linkage mechanism and a turning mechanism. The plurality of clamps are arranged at one side of the mounting plate along the length direction of the mounting plate; a rotating shaft is rotatably arranged in the mounting plate, and one end of the rotating shaft is fixedly connected with the clamp; the linkage mechanism is transmissionally connected with the plurality of rotating shafts, and can synchronously rotate the plurality of rotating shafts; the turning mechanism comprises a driving assembly, a main shaft, a transmission assembly and a rack, the output end of the driving assembly can drive the main shaft to rotate, the other end of the main shaft is fixedly connected with the mounting plate, one end of the transmission assembly is fixed on the rack, and the other end is transmissionally connected with one rotating shaft; when the mounting plate is rotated from a horizontal state to a vertical state, the transmission assembly makes the rotating shaft rotate relative to the mounting plate, and the self-rotation direction of the rotating shaft is opposite to that of the main shaft, so that the clamp can always keep in a horizontal state. The battery turning mechanism can automatically change the feeding mode of the battery, and the production efficiency of the battery is improved.

Description

Battery Steering Mechanism Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and in particular to a battery steering mechanism. Background Technology

[0002] In the production process of square aluminum-cased batteries, the batteries are required to be fed horizontally in the steps preceding and following the hot-pressing process, while in the hot-pressing process itself, they are required to be fed in layers vertically. Currently, the feeding method is usually changed manually, but this method is inefficient and severely impacts battery production efficiency.

[0003] Therefore, there is an urgent need to propose a battery steering mechanism to solve the above problems. Summary of the Invention

[0004] This invention provides a battery steering mechanism that can automatically change the battery feeding method, thereby improving battery production efficiency and reducing labor costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The battery steering mechanism includes:

[0007] Mounting plate;

[0008] Several clamps are spaced apart along the length of the mounting plate on one side of the mounting plate, and the clamps are used to fix the battery;

[0009] A plurality of rotating shafts are provided corresponding to a plurality of the aforementioned clamps. The rotating shafts are rotatably inserted through the mounting plate, and one end of the rotating shaft is fixedly connected to the clamp.

[0010] A linkage mechanism is provided, which drives and connects several of the rotating shafts, enabling the several rotating shafts to rotate synchronously.

[0011] The steering mechanism includes a drive assembly, a main shaft, a transmission assembly, and a frame. The drive assembly is mounted on the frame, and its output end is drivenly connected to one end of the main shaft to drive the main shaft to rotate. The other end of the main shaft is fixedly connected to the mounting plate. One end of the transmission assembly is fixed to the frame, and the other end is drivenly connected to a rotating shaft.

[0012] When the mounting plate rotates from a horizontal state to a vertical state, the transmission assembly causes the rotating shaft to rotate relative to the mounting plate, and the rotation direction of the rotating shaft is opposite to the rotation direction of the main shaft, so that the clamp always remains in a horizontal state.

[0013] Optionally, the transmission assembly includes:

[0014] The first guide rail is mounted on the frame and extends horizontally.

[0015] The second guide rail is slidably connected to the first guide rail, and the second guide rail extends in the vertical direction;

[0016] The connector has one end slidably connected to the second guide rail and the other end circumferentially fixed to one of the rotating shafts.

[0017] Optionally, the first guide rail and the second guide rail are slidably connected by a first slider, and the connector is slidably connected to the second guide rail by a second slider.

[0018] Optionally, the transmission assembly further includes:

[0019] The third guide rail is disposed on the frame and extends horizontally. The third guide rail is spaced apart from the first guide rail in the vertical direction, and the second guide rail is slidably connected to the third guide rail.

[0020] Optionally, the second guide rail and the third guide rail are slidably connected by a third slider.

[0021] Optionally, the cross-section of the rotating shaft is polygonal, and the connector is provided with a first connecting hole that matches the rotating shaft, and the rotating shaft is inserted into the first connecting hole.

[0022] Optionally, the main shaft is connected to the central axis of the mounting plate, and the transmission assembly is connected to the rotating shaft located in the middle position among the plurality of rotating shafts.

[0023] Optionally, the linkage mechanism includes:

[0024] Multiple connecting rods, each connecting rod having its two ends connected to the other end of an adjacent rotating shaft, the multiple connecting rods enabling the several rotating shafts to rotate synchronously.

[0025] Optionally, the linkage mechanism further includes:

[0026] A plurality of turntables are provided, corresponding to a plurality of rotating shafts. A second connecting hole is provided at the center of each turntable. The rotating shafts are circumferentially fixed to the second connecting hole. The two ends of each connecting rod are respectively fixedly hinged to the outer edges of two adjacent turntables. When one turntable is connected to two connecting rods at the same time, the line connecting the connection points of the two connecting rods and the turntable passes through the center of the turntable.

[0027] Optionally, the driving component includes:

[0028] Electric motor;

[0029] The reducer has the output end of the motor connected to the input end of the reducer. The output end of the reducer is provided with a first gear, and one end of the main shaft is provided with a second gear. The first gear meshes with the second gear.

[0030] Optionally, the clamp includes:

[0031] The base plate is fixedly connected at one end to the rotating shaft;

[0032] A first positioning block and a second positioning block are spaced apart on the base plate, and the battery is installed between the first positioning block and the second positioning block;

[0033] The abutment portion, disposed on the base plate, includes a third positioning block, a reset elastic member, and an abutment plate. The third positioning block is spaced apart from the second positioning block. One end of the reset elastic member is fixedly connected to the third positioning block, and the other end is fixedly connected to one end of the abutment plate. The other end of the abutment plate can abut against the battery to fix the battery between the abutment plate and the first positioning block.

[0034] The beneficial effects of this invention are as follows:

[0035] This invention provides a battery steering mechanism, including a mounting plate, several clamps, several rotating shafts, a linkage mechanism, and a steering mechanism. In the preceding hot-pressing process, the mounting plate is horizontal, and the clamps are also horizontally spaced along the mounting plate. During the hot-pressing process, a drive assembly drives the main shaft to rotate 90°, changing the mounting plate from a horizontal to a vertical position. During this process, a transmission assembly eliminates the lateral and longitudinal displacements caused by the rotation of the rotating shafts relative to the mounting plate, converting the tendency to rotate with the mounting plate into rotation around its own axis. Simultaneously, under the action of the linkage mechanism, other rotating shafts rotate synchronously with the main shaft, which is connected to the transmission assembly, thus keeping the clamps horizontal. While maintaining the horizontal position of the clamps, multiple clamps are changed from a horizontally laid-out state to a vertically stacked state, and the batteries are fixed on the clamps, thus automatically steering the batteries. Compared to manually changing the battery feeding method, this shortens the feeding time, thereby improving battery production efficiency and reducing labor costs. Attached Figure Description

[0036] Figure 1 is a schematic diagram of the battery steering mechanism provided in an embodiment of the present invention (frame not shown);

[0037] Figure 2 is a magnified view of part A in Figure 1;

[0038] Figure 3 is a schematic diagram of the battery steering mechanism provided in an embodiment of the present invention.

[0039] Figure 4 is a partial enlarged view of point B in Figure 3 (the connector is not connected to the shaft);

[0040] Figure 5 is an assembly diagram of the mounting plate, linkage mechanism and fixture provided in an embodiment of the present invention;

[0041] Figure 6 is a magnified view of part C in Figure 5;

[0042] Figure 7 is a schematic diagram of the battery steering mechanism provided in an embodiment of the present invention.

[0043] Figure 8 is a magnified view of part D in Figure 7.

[0044] In the picture:

[0045] 100. Mounting plate; 200. Fixture; 210. Base plate; 220. First positioning block; 230. Second positioning block; 241. Third positioning block; 242. Reset elastic element; 243. Abutment plate; 300. Rotating shaft; 400. Linkage mechanism; 410. Connecting rod; 420. Turntable; 500. Steering mechanism; 510. Drive assembly; 511. Motor; 512. Reducer; 5121. First gear; 5122. Second gear; 520. Main shaft; 530. Transmission assembly; 531. First guide rail; 532. Second guide rail; 533. Connector; 534. First slider; 535. Second slider; 536. Third guide rail; 537. Third slider; 540. Frame; 600. Battery. Detailed Implementation

[0046] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0050] This invention provides a battery steering mechanism that can automatically change the feeding method of the battery 600, thereby improving the production efficiency of the battery 600 and reducing labor costs.

[0051] Specifically, as shown in Figures 1-8, the battery steering mechanism includes a mounting plate 100, several clamps 200, several rotating shafts 300, a linkage mechanism 400, and a steering mechanism 500. The clamps 200 are spaced apart along the length of the mounting plate 100 on one side of the mounting plate 100. The clamps 200 are used to fix the battery 600. The number of clamps 200 can be set according to actual needs; in this embodiment, five clamps 200 are provided. The rotating shafts 300 are correspondingly arranged with the clamps 200. The rotating shafts 300 rotatably pass through the mounting plate 100, and one end of the rotating shaft 300 is fixedly connected to a clamp 200. By rotating the rotating shaft 300, the clamp 200 connected to the rotating shaft 300 can be driven to rotate, thereby driving the battery 600 fixed on the clamp 200 to rotate. The linkage mechanism 400 is connected to the other end of the rotating shafts 300 and enables the rotating shafts 300 to rotate synchronously. By setting up a linkage mechanism 400, rotating only one of the several rotating shafts 300 can achieve synchronous rotation of the other rotating shafts 300. The steering mechanism 500 includes a drive assembly 510, a main shaft 520, a transmission assembly 530, and a frame 540. The drive assembly 510 is mounted on the frame 540, and its output end is driven to one end of the main shaft 520 to drive the main shaft 520 to rotate. The other end of the main shaft 520 is fixedly connected to the mounting plate 100, meaning that the rotation of the main shaft 520 can drive the mounting plate 100 to rotate. One end of the transmission assembly 530 is fixed to the frame 540, and the other end is driven to one rotating shaft 300, meaning that the transmission assembly 530 is driven to one rotating shaft 300 to control the movement of that rotating shaft 300. In conjunction with the linkage mechanism 400, this achieves the purpose of controlling all rotating shafts 300, thereby controlling the angle of the battery 600. In this embodiment, when the drive assembly 510 drives the spindle 520 to rotate, thereby causing the mounting plate 100 connected to the spindle 520 to rotate from a horizontal state to a vertical state, the transmission assembly 530 causes the rotating shaft 300 to rotate relative to the mounting plate 100, so that the clamp 200 always remains in a horizontal state. Specifically, since the rotating shaft 300 is mounted on the mounting plate 100, when the mounting plate 100 rotates from a horizontal state to a vertical state with the spindle 520 as the center, several rotating shafts 300 will also rotate with the mounting plate 100 with the spindle 520 as the center. The function of the transmission assembly 530 is to eliminate the lateral and longitudinal displacement of the rotating shaft 300 in this process, so that the rotating shaft 300 rotates around its own axis while rotating with the spindle 520 as the center, thereby keeping the clamp 200 in a horizontal state when the mounting plate 100 rotates to a vertical state, and preventing the battery 600 from flipping.

[0052] By setting up a steering mechanism 500 and a linkage mechanism 400, the feeding of batteries 600 can be changed from horizontal flat feeding to vertical stacked feeding, and the batteries 600 can always be kept in a horizontal state, which improves the feeding efficiency, thereby improving the production efficiency of batteries 600 and reducing labor costs.

[0053] Further referring to Figures 2 and 4, in this embodiment, the transmission assembly 530 includes a first guide rail 531, a second guide rail 532, and a connector 533. The first guide rail 531 is mounted on the frame 540 and extends horizontally. The second guide rail 532 is slidably connected to the first guide rail 531 and extends vertically. One end of the connector 533 is slidably connected to the second guide rail 532, and the other end is circumferentially fixed to a rotating shaft 300. By providing the first guide rail 531 and the second guide rail 532, the connector 533 can move in both the horizontal and vertical directions, thereby eliminating the lateral and longitudinal displacements generated when the rotating shaft 300 rotates with the mounting plate 100. Preferably, the main shaft 520 is connected to the central axis of the mounting plate 100, and the transmission assembly 530 is driven by the rotating shaft 300 located in the middle position among the plurality of rotating shafts 300. Specifically, the connecting member 533 is driven by the rotating shaft 300 located in the middle position among the plurality of rotating shafts 300. By setting the main shaft 520 to be connected to the central axis of the mounting plate 100, the space occupied by the mounting plate 100 during rotation can be minimized, which is beneficial for saving space and reducing the risk of injury to workers. Since the rotating shaft 300 located in the middle position among the plurality of rotating shafts 300 has the smallest displacement during the rotation of the mounting plate 100, by setting the transmission assembly 530 to be driven by the rotating shaft 300 located in the middle position among the plurality of rotating shafts 300, the length of the first guide rail 531 and the second guide rail 532 can be minimized, saving material costs and making the structure of the battery steering mechanism more compact.

[0054] Optionally, in this embodiment, the first guide rail 531 and the second guide rail 532 are slidably connected by a first slider 534, and the connecting member 533 is slidably connected to the second guide rail 532 by a second slider 535. By setting the first slider 534 and the second slider 535, the smoothness of sliding between the second guide rail 532 and the first guide rail 531, as well as the smoothness of sliding between the connecting member 533 and the second guide rail 532, can be improved, thereby improving the reliability of the transmission assembly 530.

[0055] Preferably, the transmission assembly 530 further includes a third guide rail 536, which is mounted on the frame 540 and extends horizontally. The third guide rail 536 and the first guide rail 531 are spaced apart vertically, and the second guide rail 532 is slidably connected to the third guide rail 536. By providing the third guide rail 536, on the one hand, the second guide rail 532 can be better fixed, improving the stability of the second guide rail 532's installation; on the other hand, together with the first guide rail 531, it guides the second guide rail 532's movement in the horizontal direction, improving the reliability of the second guide rail 532's movement. Optionally, in this embodiment, the second guide rail 532 and the third guide rail 536 are slidably connected by a third slider 537. By providing the third slider 537, the smoothness of sliding between the second guide rail 532 and the third guide rail 536 can be improved.

[0056] Preferably, referring to Figure 2, in this embodiment, the cross-section of the rotating shaft 300 is polygonal, and the connector 533 is provided with a first connecting hole that matches the rotating shaft 300. The rotating shaft 300 is inserted into the first connecting hole. By setting the cross-section of the rotating shaft 300 to be polygonal, slippage between the rotating shaft 300 and the first connecting hole can be avoided, ensuring that the connector 533 and the rotating shaft 300 move synchronously. By setting the rotating shaft 300 to be inserted into the first connecting hole, the structure is simple and easy to install and disassemble.

[0057] Further referring to Figures 1 and 2, in this embodiment, the drive assembly 510 includes a motor 511 and a reducer 512. The output end of the motor 511 is connected to the input end of the reducer 512. The output end of the reducer 512 is provided with a first gear 5121, and one end of the main shaft 520 is provided with a second gear 5122. The first gear 5121 and the second gear 5122 mesh. By providing the reducer 512, on the one hand, the direction of power at the output end of the motor 511 can be changed, making the structure of the drive assembly 510 more compact; on the other hand, the rotation of the main shaft 520 is smoother, which is beneficial for protecting the battery 600.

[0058] Further, as shown in Figure 5, in this embodiment, the linkage mechanism 400 includes multiple connecting rods 410, with each connecting rod 410 connected to the other ends of two adjacent rotating shafts 300 at both ends. The multiple connecting rods 410 enable several rotating shafts 300 to rotate synchronously. Of course, in other embodiments, the structure of the linkage mechanism 400 can also be configured differently, depending on actual needs.

[0059] Furthermore, as shown in Figures 5 and 6, the linkage mechanism 400 also includes several turntables 420, which are correspondingly arranged with several rotating shafts 300. Each turntable 420 has a second connecting hole at its center, and the rotating shafts 300 are circumferentially fixed to the second connecting hole. The two ends of each connecting rod 410 are respectively fixedly hinged to the outer edges of two adjacent turntables 420. When one turntable 420 is simultaneously connected to two connecting rods 410, the line connecting the two connecting rods 410 to the turntable 420 passes through the center of the turntable 420. This structure ensures that the displacement of each connecting rod 410 is the same, thereby ensuring that all rotating shafts 300 rotate synchronously. By setting the turntables 420, a bridge can be provided for the connection between the rotating shafts 300 and the connecting rods 410, improving the connection strength between the rotating shafts 300 and the connecting rods 410.

[0060] Further, as shown in Figures 7 and 8, in this embodiment, the clamp 200 includes a base plate 210, a first positioning block 220, a second positioning block 230, and an abutment portion. One end of the base plate 210 is fixedly connected to the rotating shaft 300. The first positioning block 220, the second positioning block 230, and the abutment portion are all disposed on the base plate 210. The first positioning block 220 and the second positioning block 230 are spaced apart on the base plate 210. The battery 600 is installed between the first positioning block 220 and the second positioning block 230. The distance between the first positioning block 220 and the second positioning block 230 should be relatively large to accommodate different models of batteries 600. The abutment portion includes a third positioning block 241, a reset elastic member 242, and an abutment plate 243. The third positioning block 241 is spaced apart from the second positioning block 230. One end of the reset elastic member 242 is fixedly connected to the third positioning block 241, and the other end is fixedly connected to one end of the abutment plate 243. The other end of the abutment plate 243 can abut against the battery 600 to fix the battery 600 between the abutment plate 243 and the first positioning block 220. By providing the abutment portion and ensuring that the abutment plate 243 always abuts against the battery 600 through the reset elastic member 242, the fixing effect of the battery 600 is improved, reducing the risk of the battery 600 being thrown out during the rotation of the mounting plate 100, and improving the reliability of the battery steering mechanism. The reset elastic member 242 can be, but is not limited to, a spring.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. 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 the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A battery steering mechanism, characterized in that, include: Mounting plate (100); a plurality of clamps (200) spaced along the length of the mounting plate (100) on one side of the mounting plate (100), the clamps (200) being used to fix the battery (600); a plurality of rotating shafts (300) corresponding to the clamps (200), the rotating shafts (300) rotatably passing through the mounting plate (100), one end of the rotating shafts (300) being fixedly connected to the clamps (200); a linkage mechanism (400) drivingly connecting the plurality of rotating shafts (300), the linkage mechanism (400) enabling the plurality of rotating shafts (300) to rotate synchronously; a steering mechanism (500) including a drive assembly (510), a main shaft (520), a transmission assembly (530) and a frame (540), the plurality of rotating shafts (300) being fixedly connected to the clamps (200); a drive assembly (510), a main shaft (520), a transmission assembly (530) and a frame (540), the drive assembly (510), a main shaft (520), a transmission assembly (530) and a frame (540), the drive assembly (510), a main shaft (520), a transmission assembly (530) and a frame (540) being fixedly connected to the main shafts (200) and the battery (600) being fixedly connected to the clamps (200); a plurality of rotating shafts (300) corresponding to the clamps (200) and the battery (600) being fixedly connected to the clamps (200); a drive assembly (2 ... A drive assembly (510) is mounted on the frame (540). The output end of the drive assembly (510) is driven to one end of the spindle (520) to drive the spindle (520) to rotate. The other end of the spindle (520) is fixedly connected to the mounting plate (100). One end of the transmission assembly (530) is fixed to the frame (540), and the other end is driven to a rotating shaft (300). When the mounting plate (100) rotates from a horizontal state to a vertical state, the transmission assembly (530) causes the rotating shaft (300) to rotate relative to the mounting plate (100), and the rotation direction of the rotating shaft (300) is opposite to the rotation direction of the spindle (520) so that the clamp (200) always remains in a horizontal state.

2. The battery steering mechanism according to claim 1, characterized in that, The transmission assembly (530) includes: a first guide rail (531) disposed on the frame (540) and extending in a horizontal direction; a second guide rail (532) slidably connected to the first guide rail (531) and extending in a vertical direction; and a connector (533) having one end slidably connected to the second guide rail (532) and the other end circumferentially fixed to one of the rotating shafts (300).

3. The battery steering mechanism according to claim 2, characterized in that, The first guide rail (531) and the second guide rail (532) are slidably connected by the first slider (534), and the connector (533) and the second guide rail (532) are slidably connected by the second slider (535).

4. The battery steering mechanism according to claim 2, characterized in that, The transmission assembly (530) further includes: a third guide rail (536), which is disposed on the frame (540) and extends in the horizontal direction. The third guide rail (536) and the first guide rail (531) are spaced apart in the vertical direction. The second guide rail (532) is slidably connected to the third guide rail (536).

5. The battery steering mechanism according to claim 4, characterized in that, The second guide rail (532) and the third guide rail (536) are slidably connected by a third slider (537).

6. The battery steering mechanism according to claim 2, characterized in that, The cross-section of the rotating shaft (300) is polygonal, and the connector (533) is provided with a first connecting hole that matches the rotating shaft (300). The rotating shaft (300) is inserted into the first connecting hole.

7. The battery steering mechanism according to claim 1, characterized in that, The main shaft (520) is connected to the central axis of the mounting plate (100).

8. The battery steering mechanism according to any one of claims 1-7, characterized in that, The linkage mechanism (400) includes multiple connecting rods (410), each connecting rod (410) having its two ends connected to the other end of an adjacent rotating shaft (300), and the multiple connecting rods (410) enabling the multiple rotating shafts (300) to rotate synchronously.

9. The battery steering mechanism according to claim 8, characterized in that, The linkage mechanism (400) further includes: a plurality of turntables (420) corresponding to a plurality of rotating shafts (300), the center of each turntable (420) having a second connecting hole, the rotating shafts (300) being circumferentially fixed to the second connecting hole, and the two ends of each connecting rod (410) being fixedly hinged to the outer edges of two adjacent turntables (420) respectively. When one turntable (420) is simultaneously connected to two connecting rods (410), the line connecting the connection points of the two connecting rods (410) and the turntable (420) passes through the center of the turntable (420).

10. The battery steering mechanism according to any one of claims 1-7, characterized in that, The drive assembly (510) includes: a motor (511); a reducer (512), the output end of the motor (511) is connected to the input end of the reducer (512), the output end of the reducer (512) is provided with a first gear (5121), and one end of the main shaft (520) is provided with a second gear (5122), the first gear (5121) meshes with the second gear (5122).

11. The battery steering mechanism according to any one of claims 1-7, characterized in that, The clamp (200) includes: a base plate (210), one end of which is fixedly connected to the rotating shaft (300); a first positioning block (220) and a second positioning block (230), which are spaced apart on the base plate (210), and the battery (600) is installed between the first positioning block (220) and the second positioning block (230); and an abutment portion, which is disposed on the base plate (210), including a third positioning block (241), a reset elastic member (242), and an abutment plate (243). The third positioning block (241) and the second positioning block (230) are spaced apart. One end of the reset elastic member (242) is fixedly connected to the third positioning block (241), and the other end is fixedly connected to one end of the abutment plate (243). The other end of the abutment plate (243) can abut against the battery (600) to fix the battery (600) between the abutment plate (243) and the first positioning block (220).

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