Battery pack door structure and electric tool

Abstract

The utility model particularly discloses a battery pack door structure. The battery pack door structure comprises a battery pack shell and a battery module, the battery pack shell comprises a front shell and a rear shell; a left shifting block and a right shifting block are arranged between the front shell and the battery module; the adjacent ends of the left shifting block and the right shifting block are meshed and connected, the left shifting block is connected with a left door plate, and the right shifting block is connected with a right door plate; the front shell is provided with a power supply port, and the left shifting block and the right shifting block rotate in an engaged mode so that the left door plate and the right door plate can move relatively to open and close the power supply port. According to the battery pack door structure, by changing the structure of the battery pack door, the sealing structure capable of being opened and closed is arranged at the power supply port, external impact can be effectively resisted, and the durability is good. In addition, the utility model further particularly discloses an electric tool.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and more specifically, to a battery pack door structure and a power tool. Background Art

[0002] A battery pack, as a component integrating multiple battery cells, is usually used to store and release electrical energy; a battery pack consists of multiple battery cells, and the cells can be lithium-ion batteries, nickel-metal hydride batteries, etc., and the specific selection depends on application requirements and performance requirements; the battery pack is equipped with a battery management system for monitoring and managing the charging and discharging process of the battery to ensure safety, extend battery life and optimize performance; existing battery packs support various charging technologies, including fast charging, wireless charging, etc., to improve charging efficiency and convenience; as an indispensable part of modern electronic devices, the background technology and development of the battery pack are crucial for improving the performance and reliability of portable devices.

[0003] In the prior art, the power supply port of some battery packs is sealed by a rubber plug. For example, in CN220290945U, a high-energy power battery, its output interface assembly penetrates through the lower cover, and a rubber plug for blocking the upper interface of the output interface assembly is provided on the lower cover. The rubber plug is made of soft rubber materials such as silica gel and TPU. Its main function is to block the openings of the USB viewing and DC charging sockets to prevent external moisture and dust from entering; compared with the power supply port arranged in an open manner, the above-mentioned setting scheme at the power supply port can prevent the power interface from being affected by moisture or blocked by dust.

[0004] The above-mentioned setting scheme at the power supply port, by setting a rubber plug at the power supply port of the battery pack, can prevent external moisture and dust from entering, but there are still certain defects. First, the rubber plug is made of soft rubber materials such as silica gel or TPU. In the case of long-term use, the rubber plug will lose its original elasticity and sealing performance due to aging, wear or tearing. Second, in the face of relatively high-intensity physical impacts, the rubber plug has insufficient protection ability and is easily damaged. Moreover, due to the soft material of the rubber plug, it is also easy to adsorb impurities such as dust and oil stains, affecting the use safety of the power interface. Third, when the size of the power supply port is large, it requires a large force and precise alignment operation to unplug the rubber plug. Compared with mechanical structures, the opening and closing operation is relatively inconvenient, and the rubber plug is also prone to loss during frequent use. Summary of the Utility Model

[0005] The purpose of this application is to provide a battery pack door structure. By changing the structure of the battery pack door, a closable structure that can be opened and closed is provided at the power supply port, which can effectively resist external impacts and has good durability.

[0006] According to one aspect of the application, a battery pack door structure is provided, including a battery pack housing and a battery module installed in the battery pack housing; the battery pack housing includes a front housing and a rear housing; a left dial block and a right dial block are provided between the front housing and the battery module; the adjacent ends of the left dial block and the right dial block are meshed and connected, a left door panel is connected to the left dial block, and a right door panel is connected to the right dial block; a power supply port is provided on the front housing, and the left dial block and the right dial block are meshed and rotated, so that the left door panel and the right door panel can be displaced relative to each other to open and close the power supply port.

[0007] In some embodiments, an activity groove is provided on the front housing; an activity rod is connected to the left dial block or the right dial block; the activity rod is installed and slidably connected in the activity groove; by moving the activity rod, the left dial block and the right dial block can be meshed and rotated; a return spring for driving the activity rod to reset is provided at one end of the activity rod.

[0008] In some embodiments, a spring limit post is provided at the end of the activity rod; a spring limit block matching the limit post is provided in the activity groove; the spring limit post and the spring limit block cooperate to limit the return spring.

[0009] In some embodiments, a push groove is provided on the outer side of the front housing; a linkage groove is provided between the push groove and the activity groove; a push button is installed and slidably connected in the push groove, and the push button is connected to the activity rod through the linkage groove, and the activity rod can be driven to displace by pushing the push button.

[0010] In some embodiments, the battery module includes a partition board and a battery pack; the partition board is located between the front housing and the battery pack, the partition board is connected to the front housing, and the partition board cooperates with the activity groove to limit the activity rod.

[0011] In some embodiments, a buckle groove is provided on the partition board; a buckle block is provided on the left dial block or the right dial block, and the buckle groove and the buckle block cooperate to form a locking structure, and the locking structure is used to lock or unlock the activity rod.

[0012] In some embodiments, at least one sliding column is provided on the activity rod; a U-shaped groove is provided on the buckle block; the sliding column is installed and rotatably connected in the U-shaped groove, and the U-shaped groove and the sliding column cooperate to enable the activity rod to drive the left dial block and the right dial block to be meshed and rotated.

[0013] In some embodiments, two sliding columns are provided on the activity rod; a sliding limit groove is provided on the front housing; the two sliding columns and the sliding limit groove cooperate to limit the sliding range of the activity rod.

[0014] In some embodiments, a first door panel limiting groove is provided on the front housing; a second door panel limiting groove is provided on the partition board, and the first door panel limiting groove and the second door panel limiting groove cooperate to limit the displacement directions of the left door panel and the right door panel.

[0015] In some embodiments, two rotating shaft columns are provided on the front housing; socket columns are provided on both the left door panel and the right door panel; rotating shaft holes and socket holes are provided on both the left dial block and the right dial block; the two rotating shaft columns are respectively sleeved and rotatably connected to the two rotating shaft holes; the two socket columns respectively match the two socket holes; wherein, the cross-section of the socket column is circular, and the cross-section of the socket hole is waist-shaped.

[0016] According to the technical solution of one aspect of the present application, a battery pack door structure includes a battery housing and a battery module installed in the battery housing. The battery housing includes a front housing and a rear housing. A left dial block and a right dial block are provided between the front housing and the battery module. The adjacent ends of the left dial block and the right dial block are meshed and connected. A left door panel is provided on the left dial block, and a right door panel is provided on the right dial block. The left dial block and the right dial block are meshed and relatively rotated to drive the left door panel and the right door panel to relatively displace. A power supply port is provided on the front housing. The left dial block and the right dial block are meshed and rotated, so that the left door panel and the right door panel can relatively displace to open and close the power supply port. The closing structure at the power supply port is relatively simple, and the working stability of the mechanical structure is good. The left door panel and the right door panel can cooperate to cover a power supply port with a relatively large size. Compared with a rubber plug, the door panel structure formed by the left door panel and the right door panel has better impact resistance, good working stability and service durability, and is not easily damaged. Further, the opening and closing states of the left door panel and the right door panel are controlled by the meshing and rotation of the left dial block and the right dial block, and this operation process does not require a large force and precise alignment operation.

[0017] Another object of the present application is to provide a power tool, by changing the connection method of the power tool, enabling a plug-in device to be detachably connected to the battery pack, and the operation of disassembling and assembling the plug-in device on the battery pack is relatively convenient.

[0018] According to another aspect of the present application, there is also provided a power tool, including the above-mentioned battery pack door structure, a battery pack and a plug-in device; the battery pack door structure is provided on the battery pack, and the plug-in device is detachably connected to the battery pack through the battery pack door structure, and the battery pack is used to supply power to the plug-in device.

[0019] In some embodiments, two door panel clamping grooves are provided on the plug-in device; the two door panel clamping grooves are respectively located on both sides of the plug-in device; wherein, the two door panel clamping grooves respectively match the left door panel and the right door panel, and the left door panel and the right door panel can cooperate to lock or unlock the plug-in device.

[0020] According to the technical solution of another aspect of the present application, the power tool includes a battery pack door structure, a battery pack, and a plug-in device, and the composition structure of the power tool is simple; the battery pack door structure is provided on the battery pack to enable the power supply port of the battery pack to be opened or closed, and the door plate structure formed by the left door plate and the right door plate has good impact resistance; further, the plug-in device is detachably connected to the battery pack through the battery pack door structure, and the left door plate and the right door plate cooperate to lock or unlock the plug-in device, making the operation of disassembling and assembling the plug-in device on the battery pack more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other features, properties, and advantages of the present application will become more apparent from the following description in conjunction with the drawings and embodiments. It should be noted that the drawings are only examples and are not drawn according to the condition of equal scale, and should not be used to limit the protection scope of the present application, where:

[0022] Figure 1 is a perspective view of the battery pack of the present application;

[0023] Figure 2 is a perspective view of the battery pack housing of the present application;

[0024] Figure 3 is a perspective view of a partial structure of the battery pack door of the present application;

[0025] Figure 4 is a perspective view of the battery module of the present application;

[0026] Figure 5 is a three-dimensional assembly drawing of the battery pack door structure of the present application;

[0027] Figure 6 is a rear view of the front housing of the present application;

[0028] Figure 7 is a cross-sectional view of the rear view of the front housing of the present application along the A-A direction;

[0029] Figure 8 is an enlarged view of part B of the cross-sectional view of the rear view of the front housing of the present application along the A-A direction;

[0030] Figure 9 is a perspective view of the left toggle block and the right toggle block of the present application;

[0031] Figure 10 is a perspective view of the left door plate and the right door plate of the present application;

[0032] Figure 11 is a front view of the movable rod of the present application;

[0033] Figure 12 is a front view of the push button of the present application;

[0034] Figure 13 is a perspective view of the plug-in device of the present application;

[0035] Figure 14 is a perspective view of the battery pack of the present application;

[0036] Figure 15 is a reference view of the combined use state of the plug-in device and the battery pack of the present application;

[0037] In the figure: 1. Battery pack housing; 11. Front housing; 111. Power supply port; 112. Activity slot; 113. Push slot; 114. Linkage slot; 115. Sliding limit slot; 12. Rear housing; 13. Housing connection stud; 14. Partition connection stud; 2. Battery module; 21. Partition; 210. Power supply base; 2101. Power supply socket; 211. Snap groove; 22. Battery pack; 23. Circuit board; 31. Left dial block; 32. Right dial block; 33. Snap block; 331. U-shaped groove; 401. First door panel limit slot; 402. Second door panel limit slot; 41. Left door panel; 42. Right door panel; 5. Activity rod; 51. Return spring; 511. Spring limit post; 512. Spring limit block; 52. Sliding post; 6. Push button; 61. Linkage hole; 71. Rotating shaft column; 72. Rotating shaft hole; 81. Socket column; 82. Socket hole; 9. Battery pack; 10. Plug-in device; 101. Door panel clamping slot; 102. Connection plug. Detailed implementation manners

[0038] The following further elaborates on the present utility model through specific embodiments in conjunction with the accompanying drawings.

[0039] As mentioned herein, "embodiment" means that the specific features, structures, or characteristics described in conjunction with the embodiment may be included in at least one embodiment herein. The phrase appearing in the specification does not necessarily refer to the same embodiment, nor is it limited to mutually exclusive independent or alternative embodiments. Those skilled in the art should be able to understand that the embodiments herein can be combined with other embodiments without structural conflict.

[0040] In the description herein, unless otherwise clearly specified and defined, technical terms such as "installation", "connection", "linkage", etc. should be understood in a broad sense and can be movable connection, fixed connection, or integrated. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0041] In the description herein, terms indicating orientation or positional relationships such as "upper", "lower", "left", "right", "height", "length", "width", etc. are intended to accurately describe the embodiments and simplify the description, rather than limiting the parts or structures involved to having a specific orientation, being installed or operated in a specific orientation.

[0042] See also Figure 1 and Figure 2 , shown are respectively a stereoscopic view of the battery pack and a stereoscopic view of the battery pack shell of the present application, the battery pack door structure includes a battery pack shell 1 and a battery module 2, the battery module 2 is installed in the battery pack shell 1; the battery pack shell 1 includes a front shell 11 and a rear shell 12, the front shell 11 and the rear shell 12 are detachably connected, the battery pack shell 1 is a split structure, and in some embodiments, the battery pack shell 1 can be manufactured in an integrated manner; further, a power supply port 111 is provided on the front shell 11, and the power supply port 111 is circular, and a power cord or electrical equipment can pass through the power supply port 111 to connect to the battery module 2; further, the front shell 11 is also provided with a left door panel 41 and a right door panel 42 for opening or closing the power supply port 111.

[0043] A push groove 113 is provided on the outer side of the front shell 11 , and a push button 6 is installed in the push groove 113 . The push button 6 can slide in the push groove 113 . The user controls the opening or closing of the left door panel 41 and the right door panel 42 by toggling the push button 6 on the outer side of the battery pack shell 1 .

[0044] See also Figure 3 , which is a three-dimensional view of the battery pack door structure of the present application, a left shift block 31 and a right shift block 32 are provided between the front housing 11 and the battery module 2, and the left shift block 31 and the right shift block 32 constitute a shift block structure, which is arranged in the battery pack housing 1, and the adjacent ends of the left shift block 31 and the right shift block 32 are meshed and connected; further, a left door panel 41 is connected to the left shift block 31, and a right door panel 42 is connected to the right shift block 32. Specifically, the left door panel 41 is rotatably connected to the left shift block 31, and the right door panel 42 is rotatably connected to the right shift block 32. The left door panel 41 and the right door panel 42 constitute The door panel structure is formed between the front shell body 11 and the shift block structure; further, a movable rod 5 is connected to the left shift block 31 or the right shift block 32. Specifically, the movable rod 5 is rotatably connected to the left shift block 31 or the right shift block 32. The closed structure at the power supply port 111 of the battery pack shell body 1 can make the left shift block 31 and the right shift block 32 engage and rotate by moving the movable rod 5, thereby making the left door panel 41 and the right door panel 42 relatively displaced to open and close the power supply port 111; further, one end of the movable rod 5 is provided with a reset spring 51 for driving the movable rod 5 to reset.

[0045] See also Figure 4, shown is a perspective view of the battery module of the present application. The battery module 2 includes a partition 21 and a battery pack 22. Specifically, a circuit board 23 is further provided between the partition 21 and the battery pack 22. A power supply base 210 is provided on the partition 21. A power cord or an electrical device is connected to the power supply base 210 through a power supply port 111 to obtain power supply. The battery pack 22 is used to store electrical energy. The battery pack 22 is located in the rear housing 12. The circuit board 23 is used to control and adjust the current output state of the battery pack 22; further, the dial structure and the door panel structure are located between the front housing 11 and the partition 21. The partition 21 is detachably connected to the front housing 11, which is easy to disassemble and maintain.

[0046] Preferably, in this embodiment, not marked in the figure, at least two arc-shaped ribs are further provided on the partition 21. The arc-shaped ribs are fitted with the dial structure, which can reduce the friction force suffered by the left dial 31 and the right dial 32 during displacement.

[0047] Preferably, in this embodiment, a buckle groove 211 is provided on the partition 21. The buckle groove 211 is in a W shape.

[0048] Preferably, in this embodiment, a second door panel limiting groove 402 is provided on the partition 21.

[0049] Please refer to Figure 5 , shown is a three-dimensional assembly view of the battery pack door structure of the present application. The dial structure, the door panel structure and the movable rod 5 are located between the front housing 11 and the partition 21. Further, a movable groove 112 is provided on the front housing 11. The movable rod 5 is installed and slidably connected in the movable groove 112. The partition 21 is located between the front housing 11 and the battery pack 22. The partition 21 is connected to the front housing 11. The partition 21 cooperates with the movable groove 112 to limit the movable rod 5. Specifically, it can limit the sliding path of the movable rod 5.

[0050] Further, in this embodiment, a spring limiting block 512 matching the limiting column is provided in the movable groove 112.

[0051] Please refer to Figures 6 to 8 , shown are respectively the rear view of the front housing of the present application, the cross-sectional view of the rear view of the front housing along the A-A direction, and the enlarged view at B of the cross-sectional view of the rear view of the front housing along the A-A direction. A linkage groove 114 is provided between the push groove 113 and the movable groove 112. A push button 6 is installed and slidably connected in the push groove 113. The push button 6 is connected to the movable rod 5 through the linkage groove 114. By pushing the push button 6, the movable rod 5 can be driven to displace, and the opening and closing operation of the door panel is convenient.

[0052] Preferably, in this embodiment, a first door panel limiting groove 401 is provided on the inner side of the front shell body 11, and the first door panel limiting groove 401 matches with the second door panel limiting groove 402, and the door panel structure is located between the first door panel limiting groove 401 and the second door panel limiting groove 402. Specifically, the above-mentioned left door panel 41 and the right door panel 42 can slide in the first door panel limiting groove 401 and the second door panel limiting groove 402, and the first door panel limiting groove 401 and the second door panel limiting groove 402 cooperate to limit the displacement direction of the left door panel 41 and the right door panel 42.

[0053] Preferably, in this embodiment, two rotating shaft columns 71 are provided on the front housing 11 .

[0054] Preferably, in this embodiment, a sliding limiting groove 115 is provided on the front housing 11 .

[0055] Preferably, in this embodiment, four housing connection studs 13 are provided on the front housing 11 , and the front housing 11 is bolted to the rear housing 12 via the four housing connection studs 13 , so that the front housing 11 and the rear housing 12 are detachably connected.

[0056] Preferably, in this embodiment, four partition connecting studs 14 are further provided on the inner side of the front shell 11, and the partition 21 is bolted to the front shell 11 through the four partition connecting studs 14, so that the partition 21 and the front shell 11 are detachably connected.

[0057] Furthermore, in this embodiment, two of the four partition connecting studs 14 are rotating shaft columns 71 .

[0058] See also Figure 9 , which is a stereoscopic view of the left and right shift blocks of the present application, wherein both ends of the left and right shift blocks 31 and 32 have a meshing end and a hinged end, and the meshing end has a gear structure that enables the left and right shift blocks 31 and 32 to mesh and connect, and the left door panel 41 is rotatably connected to the hinged end of the left shift block 31, and the right door panel 42 is rotatably connected to the hinged end of the right shift block 32; a buckle block 33 is provided on the left and right shift blocks 31 or 32, and specifically, the buckle block 33 is located at On the left dial block 31, the buckle block 33 matches the above-mentioned buckle groove 211, and the contact end of the buckle block 33 and the buckle groove 211 is arc-shaped. The buckle groove 211 and the buckle block 33 cooperate to form a locking structure, and the locking structure is used to lock or unlock the movable rod 5. When the left door panel 41 and the right door panel 42 are in a fully open state, the locking structure locks the movable rod 5, and the locked state of the movable rod 5 can be released by forcibly pushing the push button 6.

[0059] Preferably, in this embodiment, a U-shaped groove 331 is provided on the buckle block 33 , and the opening of the U-shaped groove 331 is arranged upward.

[0060] Preferably, in this embodiment, both the left shifting block 31 and the right shifting block 32 are provided with a rotating shaft hole 72 and a socket hole 82. The rotating shaft hole 72 is arranged at the meshing end of the left shifting block 31 or the right shifting block 32, and the socket hole 82 is arranged at the hinged end of the left shifting block 31 or the right shifting block 32. The two rotating shaft columns 71 are respectively sleeved and rotatably connected to the two rotating shaft holes 72, and the cross-section of the rotating shaft column 71 and the rotating shaft hole 72 is circular. The rotating shaft hole 72 cooperates with the socket hole 82 to rotatably connect the left shifting block 31 to the front housing 11, and the right shifting block 32 is also rotatably connected to the front housing 11.

[0061] Preferably, in this embodiment, the cross-section of the socket hole 82 is waist-shaped.

[0062] Please refer to Figure 10 , which shows the perspective view of the left door panel and the right door panel of this application. Both the left door panel 41 and the right door panel 42 are provided with socket columns 81. The cross-section of the socket column 81 is circular. The two socket columns 81 respectively match the two socket holes 82. The socket column 81 cooperates with the socket hole 82 to rotatably connect the left door panel 41 to the left shifting block 31, and the right door panel 42 is also rotatably connected to the right shifting block 32. The cross-section of the socket column 81 is circular, and the cross-section of the socket hole 82 is waist-shaped. The socket column 81 can slide in the socket hole 82 and cooperate with the first door panel limiting groove 401 and the second door panel limiting groove 402 to make the displacement paths of the left door panel 41 and the right door panel 42 be straight lines.

[0063] Please refer to Figure 11 , which shows the front view of the movable rod of this application. The movable rod 5 is provided with at least one sliding column 52. The sliding column 52 is installed and rotatably connected to the U-shaped groove 331. The U-shaped groove 331 cooperates with the sliding column 52 to enable the movable rod 5 to drive the left shifting block 31 and the right shifting block 32 to engage and rotate, thereby driving the left door panel 41 and the right door panel 42 to open or close the power supply port 111.

[0064] Preferably, in this embodiment, the movable rod 5 is provided with two sliding columns 52. The sliding columns 52 can slide in the sliding limiting groove 115. The two sliding columns 52 cooperate with the sliding limiting groove 115 to limit the sliding range of the movable rod 5.

[0065] Preferably, in this embodiment, the end of the movable rod 5 is provided with a spring limiting column 511. The spring limiting column 511 matches the spring limiting block 512. The return spring 51 is located between the spring limiting column 511 and the spring limiting block 512. The two ends of the return spring 51 are respectively sleeved on the spring limiting column 511 and the spring limiting block 512. The spring limiting column 511 and the spring limiting block 512 cooperate to limit the return spring 51. The advantage of this solution is that it can prevent the return spring 51 from accidentally popping out when it is in a compressed state.

[0066] Please refer to Figure 12, which shows the front view of the push button of the present application. There is a linkage hole 61 on the push button 6. The linkage hole 61 is arranged at the connection end of the push button 6 and the movable rod 5. The linkage hole 61 matches the sliding column 52. The push button 6 is sleeved on the sliding column 52 through the linkage hole 61, so that the push button 6 is connected to the movable rod 5. Thus, the user can control the displacement of the movable rod 5 by toggling the push button 6.

[0067] Preferably, in this embodiment, there are two linkage holes 61 on the push button 6 that match the two sliding columns 52.

[0068] Preferably, in this embodiment, not marked in the figure, there are also anti-slip patterns on the push button 6.

[0069] Please refer to Figures 13 to 15 , which respectively show the perspective view of the plug-in device of the present application, the perspective view of the battery pack, and the reference view of the combined use state of the plug-in device and the battery pack. The power tool includes the above-mentioned battery pack 9 door structure, battery pack 9, and plug-in device 10. The composition structure of the power tool is simple; the battery pack 9 door structure is arranged on the battery pack 9, so that the power supply port 111 of the battery pack 9 can be opened or closed, and the door plate structure formed by the left door plate 41 and the right door plate 42 has good impact resistance. The plug-in device 10 is detachably connected to the battery pack 9 through the battery pack 9 door structure. The disassembly and assembly operation of the plug-in device 10 is convenient. The battery pack 9 is used to supply power to the plug-in device 10; further, there are two door plate clamping grooves 101 on the plug-in device 10. The two door plate clamping grooves 101 are respectively located on both sides of the plug-in device 10. Among them, the two door plate clamping grooves 101 respectively match the left door plate 41 and the right door plate 42, and the left door plate 41 and the right door plate 42 cooperate to lock or unlock the plug-in device 10; regarding the connection method between the plug-in device and the battery pack, the user pushes the push button 6 forward to open the power supply port 111 of the battery pack 9. There is also a connection plug 102 at the connection end of the plug-in device 10 and the battery pack 9. There is a power supply socket 2101 on the power supply base 210. The connection plug 102 is connected to the power supply socket 2101 through the power supply port 111. After that, the user pushes the push button 6 backward to close the power supply port 111 of the battery pack 9. At this time, the distance between the left door plate 41 and the right door plate 42 decreases, and the left door plate 41 and the right door plate 42 are respectively located in the two door plate clamping grooves 101. At this time, the left door plate 41 and the right door plate 42 cooperate to clamp the plug-in device 10, and due to the cooperation and limitation of the left door plate 41, the right door plate 42 and the door plate clamping grooves 101, the plug-in device 10 will not shake back and forth.

[0070] The purpose of the above embodiments is to make a detailed description of the present invention in conjunction with the accompanying drawings, so that those skilled in the art can understand the technical concept of the present invention. Within the scope of the claims of the present invention, optimizing or equivalently replacing the involved part structures, and combining the implementation manners in different embodiments without conflict in structure and principle all fall within the protection scope of the present invention.

Claims

1. A battery pack door structure, comprising a battery pack housing (1) and a battery module (2) installed in the battery pack housing (1); the battery pack housing (1) comprises a front housing (11) and a rear housing (12); It is characterized in that A left shift block (31) and a right shift block (32) are provided between the front housing (11) and the battery module (2); The adjacent ends of the left shift block (31) and the right shift block (32) are meshed and connected, the left shift block (31) is connected to a left door plate (41), and the right shift block (32) is connected to a right door plate (42); The front housing (11) is provided with a power supply port (111), and the left shift block (31) and the right shift block (32) are engaged and rotated to cause the left door plate (41) and the right door plate (42) to move relative to each other to open and close the power supply port (111).

2. The battery pack door structure according to claim 1, characterized in that: The front housing (11) is provided with a movable groove (112); The left shift block (31) or the right shift block (32) is connected with a movable rod (5); The movable rod (5) is installed and slidably connected in the movable groove (112); By moving the movable rod (5), the left shift block (31) and the right shift block (32) can be engaged and rotated; One end of the movable rod (5) is provided with a return spring (51) for driving the movable rod (5) to return to its original position.

3. The battery pack door structure according to claim 2, characterized in that: A spring limiting column (511) is provided at the end of the movable rod (5); A spring limiting block (512) matching the limiting column is arranged in the movable groove (112); The spring limiting column (511) cooperates with the spring limiting block (512) to limit the reset spring (51).

4. The battery pack door structure according to claim 2, characterized in that: The outer side of the front housing (11) is provided with a pushing groove (113); A linkage groove (114) is provided between the pushing groove (113) and the movable groove (112); A push button (6) is installed and slidably connected to the push groove (113); the push button (6) is connected to the movable rod (5) via a linkage groove (114); and the movable rod (5) can be driven to move by pushing the push button (6).

5. The battery pack door structure according to claim 2, characterized in that: The battery module (2) comprises a partition (21) and a battery group (22); The partition (21) is located between the front housing (11) and the battery pack (22), the partition (21) is connected to the front housing (11), and the partition (21) cooperates with the movable groove (112) to limit the movable rod (5).

6. The battery pack door structure according to claim 5, characterized in that: The partition plate (21) is provided with a buckle groove (211); A buckle block (33) is provided on the left shift block (31) or the right shift block (32), and the buckle groove (211) cooperates with the buckle block (33) to form a locking structure, and the locking structure is used to lock or unlock the movable rod (5).

7. The battery pack door structure according to claim 6, characterized in that: At least one sliding column (52) is provided on the movable rod (5); The buckle block (33) is provided with a U-shaped groove (331); The sliding column (52) is installed and rotatably connected to the U-shaped groove (331), and the U-shaped groove (331) cooperates with the sliding column (52) to enable the movable rod (5) to drive the left shift block (31) and the right shift block (32) to engage and rotate.

8. The battery pack door structure according to claim 7, characterized in that: The movable rod (5) is provided with two sliding posts (52); The front housing (11) is provided with a sliding limit groove (115); The two sliding columns cooperate with the sliding limiting groove (115) to limit the sliding range of the movable rod (5).

9. The battery pack door structure according to claim 5, characterized in that: The front housing (11) is provided with a first door panel limiting groove (401); The partition plate (21) is provided with a second door panel limiting groove (402), and the first door panel limiting groove (401) cooperates with the second door panel limiting groove (402) to limit the displacement direction of the left door panel (41) and the right door panel (42).

10. The battery pack door structure according to claim 1, characterized in that: The front housing (11) is provided with two rotating shaft columns (71); The left door panel (41) and the right door panel (42) are both provided with sleeve posts (81); The left shift block (31) and the right shift block (32) are both provided with a sleeve connection hole (82); The two rotating shaft columns (71) are respectively sleeved and rotatably connected to the two rotating shaft holes (72); The two sleeve connecting posts (81) are matched with the two sleeve connecting holes (82) respectively; The cross section of the sleeve column (81) is circular, and the cross section of the sleeve hole (82) is waist-shaped.

11. An electric tool, characterized in that: It comprises a battery pack door structure according to any one of claims 1 to 10, a battery pack (9) and a plug-in device (10); the battery pack door structure is arranged on the battery pack (9), the plug-in device (10) is detachably connected to the battery pack (9) via the battery pack door structure, and the battery pack (9) is used to supply power to the plug-in device (10).

12. The electric tool according to claim 11, characterized in that: The plug-in device (10) is provided with two door panel clamping slots (101); The two door panel clamping slots (101) are respectively located on two sides of the plug-in device (10); The two door panel positioning slots (101) are respectively matched with the left door panel (41) and the right door panel (42), and The left door panel (41) cooperates with the right door panel (42) to lock or unlock the plug-in device (10).

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