Battery pack assembly and electric equipment

Abstract

The invention discloses a battery pack assembly and electric equipment. The battery pack assembly comprises a frame, a battery pack and a battery pack, the clamping and locking assembly comprises a shell and a first sliding block, a first through hole is formed in the bottom of the shell, and the first sliding block is arranged above the first through hole in a sliding mode; the battery pack assembly comprises a battery pack and a matching block, the matching block is connected to the peripheral side of the battery pack and clamped in the shell, the matching block and the first sliding block are oppositely arranged up and down, and after the first sliding block moves away from the upper portion of the first through hole, the matching block slides downwards through the first through hole. In a conventional state, the battery pack can be fixed on the frame through the clamping and locking assembly, the fixing mode is firm at the moment, when the side collision risk is detected, the first sliding block moves away from the upper portion of the first through hole, the matching block can drive the battery pack to slide downwards by a certain distance, the battery pack can avoid the collision interval at the moment, and the collision risk is reduced; therefore, the safety of the battery pack is ensured, and meanwhile, the rigidity of electric equipment is not greatly influenced.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and in particular to a battery pack assembly and electrical equipment. Background Technology

[0002] In related technologies, the battery pack assembly includes a mounting plate, a motor, a gear reducer, a fuse mechanism, and a fastening pin. When the battery pack is impacted, the fastening pin deforms, the motor operation is obstructed, and a large amount of heat is generated. At this time, the magnesium strip fuse mechanism can be triggered to burn off the fastening pin, and the battery pack can be detached.

[0003] However, existing battery pack assemblies also have significant drawbacks: the fuse mechanism is only triggered after the battery pack is impacted, at which point the battery pack is prone to short circuits, fires, or even explosions, failing to guarantee the safety of the battery pack. In addition, it greatly affects the rigidity of the electrical equipment, which is detrimental to the safety of the electrical equipment. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a battery pack assembly that can reduce the risk of the battery pack being impacted, ensuring the safety of the battery pack without significantly affecting the rigidity of the electrical equipment.

[0005] The present invention further proposes an electrical device.

[0006] According to the present invention, a battery pack assembly includes: a frame; a locking assembly connected to the frame, the locking assembly including: a housing and a first sliding block, the bottom of the housing having a first through hole, the first sliding block being slidably disposed above the first through hole; and a battery pack assembly including: a battery pack and a mating block, the mating block being connected to the outer periphery of the battery pack and being locked within the housing, the mating block and the first sliding block being vertically opposite each other, and after the first sliding block is moved away from above the first through hole, the mating block sliding downward through the first through hole.

[0007] According to the battery pack assembly of the present invention, under normal conditions, the battery pack can be fixed to the frame by the locking assembly. At this time, the fixing method is firm. When a side collision risk is detected, after the first sliding block moves away from the top of the first through hole, the mating block can drive the battery pack to slide down a certain distance. At this time, the battery pack can avoid the collision zone and reduce the risk of being hit. In this way, the safety of the battery pack is ensured without significantly affecting the rigidity of the electrical equipment.

[0008] In some examples of the present invention, the cross-sectional width of the first sliding block is greater than the cross-sectional width of the first through hole, and the mating block includes: a main body and a limiting part, the main body is connected to the lower end of the limiting part, the cross-sectional width of the main body is less than or equal to the cross-sectional width of the first through hole, and the cross-sectional width of the limiting part is greater than the cross-sectional width of the first through hole.

[0009] In some examples of the present invention, the housing includes: a side plate, an upper plate and a first lower plate, the side plate being connected between the upper plate and the first lower plate and being disposed away from the mating block, the upper plate being pressed against the upper end of the limiting portion, the first lower plate having a first through hole at one end adjacent to the battery pack, and the first sliding block being slidably disposed on the first lower plate.

[0010] In some examples of the present invention, the locking assembly further includes: a fixing block disposed at one end of the first lower plate adjacent to the side plate and connected to the side plate; a first suction member disposed on the side of the first sliding block facing the fixing block; and a second suction member disposed on the side of the fixing block facing the first sliding block; when the first suction member and the second suction member are activated, the first suction member and the second suction member attract each other.

[0011] In some examples of the present invention, the locking assembly further includes: a first elastic member, one end of which is sleeved on the first attraction member, and the other end of which is sleeved on the second attraction member.

[0012] In some examples of the present invention, the locking assembly further includes: an installation groove is provided at the upper end of the limiting portion, and the battery pack assembly further includes: a second elastic member, the second elastic member being disposed in the installation groove, and the second elastic member abutting between the upper plate and the bottom wall of the installation groove.

[0013] In some examples of the present invention, the locking assembly further includes a second sliding block, and the housing further includes a plurality of second lower plates, the plurality of second lower plates being located above the first lower plate, the plurality of second lower plates being connected to the side plate and spaced apart from each other, the plurality of second lower plates having a second through hole at one end adjacent to the battery pack, the second sliding block being slidably disposed above the second through hole, and after the second sliding block is moved away from above the second through hole, the mating block slides down through the second through hole.

[0014] In some examples of the present invention, the cross-sectional width of the second sliding block is greater than the cross-sectional width of the second through hole, and the cross-sectional width of the limiting part is less than or equal to the cross-sectional width of the second through hole.

[0015] In some examples of the present invention, the frame includes: a plurality of connecting segments, wherein the locking assembly is connected between two adjacent connecting segments.

[0016] The electrical device according to the present invention includes: the battery pack assembly described above.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the battery pack assembly according to the first embodiment of the present invention; Figure 2 This is a first cross-sectional view of the battery pack assembly according to a first embodiment of the present invention; Figure 3 This is a second cross-sectional view of the battery pack assembly according to the first embodiment of the present invention; Figure 4 This is a schematic diagram of the battery pack assembly according to the second embodiment of the present invention; Figure 5 This is a schematic diagram of the first structure of the card lock assembly; Figure 6 This is a schematic diagram of the second structure of the locking assembly; Figure 7 This is a structural diagram of the battery pack assembly.

[0019] Figure label: 1. Battery pack assembly; 10. Frame; 100. Connecting section; 20. Locking assembly; 200. Housing; 201. First sliding block; 202. First through hole; 203. Side plate; 204. Top plate; 205. First bottom plate; 206. Fixing block; 207. First suction member; 208. Second suction member; 209. First elastic member; 210. Second sliding block; 211. Second bottom plate; 212. Second through hole; 30. Battery pack assembly; 300. Battery pack; 301. Mating block; 302. Main body; 303. Limiting part; 304. Mounting groove; 305. Second elastic member. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0021] The following is for reference. Figures 1-7A battery pack assembly 1 according to an embodiment of the present invention is described.

[0022] like Figures 1-4 As shown, the battery pack assembly 1 according to an embodiment of the present invention includes: a frame 10, a locking assembly 20, and a battery pack assembly 30. The frame 10 provides support and protection, ensuring the stability and safety of the internal components of the battery pack assembly 1. The locking assembly 20 secures the battery pack assembly 30 to the frame 10, ensuring that the battery pack assembly 30 will not loosen due to vibration or impact during use. The battery pack assembly 30 stores electrical energy and provides stable voltage and current output.

[0023] like Figures 1-3 , Figure 5 and Figure 6 As shown, the first embodiment of the present invention is as follows: the locking assembly 20 is connected to the frame 10. The locking assembly 20 includes: a housing 200 and a first sliding block 201. The bottom of the housing 200 is provided with a first through hole 202, and the first sliding block 201 is slidably disposed above the first through hole 202. The locking assembly 20 can be connected to the frame 10 by welding. In this case, the frame 10 can support the locking assembly 20, which facilitates the installation and setting of the locking assembly 20. The housing 200 and the first sliding block 201 are components of the locking assembly 20. The housing 200 can provide protection for the internal components. The first sliding block 201 can slide. The bottom of the housing 200 is provided with a first through hole 202, which allows other components to pass through. The first sliding block 201 is slidably disposed above the first through hole 202. The first sliding block 201 can slide relative to the first through hole 202, so that the first sliding block 201 can block the first through hole 202 or allow the first through hole 202 to pass through.

[0024] like Figure 2 , Figure 3 and Figure 7As shown, the battery pack assembly 30 includes a battery pack 300 and a mating block 301. The mating block 301 is connected to the outer periphery of the battery pack 300 and is also secured within the housing 200. The battery pack 300 and the mating block 301 are components of the battery pack assembly 30. The battery pack 300 stores electrical energy in the form of chemical energy and releases it when needed, providing a continuous and stable power output to electrical devices. The mating block 301 can move the battery pack 300. Since the mating block 301 is connected to the outer periphery of the battery pack 300, it can cause the battery pack 300 to slide downwards. When the assembly containing the mating block 301 moves, the mating block 301 can slide downwards within the housing 200, thereby causing the battery pack 300 to slide downwards. The mating block 301 can be fixed to the outer periphery of the battery pack 300 using fasteners.

[0025] The mating block 301 and the first sliding block 201 are arranged vertically opposite each other, and after the first sliding block 201 moves away from the top of the first through hole 202, the mating block 301 slides down through the first through hole 202. Vertically, the mating block 301 and the first sliding block 201 can be arranged vertically opposite each other. The mating block 301 can be positioned above the first sliding block 201. After the first sliding block 201 moves away from above the first through hole 202, the mating block 301 slides down through the first through hole 202. That is, when a side collision risk is detected, the locking assembly 20 opens, the first sliding block 201 moves, and the first slider can release the first through hole 202. This releases the vertical freedom of the mating block 301, allowing it to slide down through the first through hole 202. At this time, the mating block 301 can drive the battery pack 300 to slide downwards, allowing the battery pack 300 to slide down a certain distance. This allows the battery pack 300 to avoid the collision zone, thereby reducing the risk of the battery pack 300 being hit and ensuring the safety of the battery pack 300. It should be noted that during the process of battery pack 300 avoiding an obstacle, battery pack 300 is not affected by external forces or external temperatures, which can ensure the safety of battery pack 300. In addition, it will not have a significant impact on the rigidity of the electrical equipment.

[0026] Therefore, under normal conditions, the battery pack 300 can be fixed to the frame 10 by the locking assembly 20. At this time, the fixing method is firm. When a side collision risk is detected, the first sliding block 201 moves away from the top of the first through hole 202. The cooperating block 301 can drive the battery pack 300 to slide down a certain distance. At this time, the battery pack 300 can avoid the collision zone and reduce the risk of being hit. In this way, the safety of the battery pack 300 is ensured without significantly affecting the rigidity of the electrical equipment.

[0027] Specifically, such as Figure 2 , Figure 3 and Figure 7 As shown, the cross-sectional width of the first sliding block 201 is greater than the cross-sectional width of the first through hole 202. The mating block 301 includes a main body 302 and a limiting part 303. The main body 302 is connected to the lower end of the limiting part 303. The cross-sectional width of the main body 302 is less than or equal to the cross-sectional width of the first through hole 202, and the cross-sectional width of the limiting part 303 is greater than the cross-sectional width of the first through hole 202.

[0028] The cross-sectional width of the first sliding block 201 is greater than the cross-sectional width of the first through hole 202. In this case, the first sliding block 201 can be positioned above the first through hole 202 without falling off. The main body 302 and the limiting part 303 are components of the mating block 301. The main body 302 is the main body of the mating block 301 and can drive the battery pack 300 to move. The limiting part 303 can play a limiting role. The main body 302 is connected to the lower end of the limiting part 303. At this time, the main body 302 and the limiting part 303... To form a whole, which facilitates the installation and setting of the mating block 301, the cross-sectional width of the main body 302 is less than or equal to the cross-sectional width of the first through hole 202. At this time, the main body 302 can slide down from the first through hole 202. In this way, the mating block 301 can drive the battery pack 300 to slide down, so that the battery pack 300 can slide down a certain distance. The cross-sectional width of the limiting part 303 is greater than the cross-sectional width of the first through hole 202. At this time, the first through hole 202 can restrict the downward movement of the limiting part 303, thereby achieving the limiting function.

[0029] Among them, such as Figure 2 and Figure 3 As shown, the housing 200 includes: a side plate 203, an upper plate 204 and a first lower plate 205. The side plate 203 is connected between the upper plate 204 and the first lower plate 205, and the side plate 203 is disposed away from the mating block 301. The upper plate 204 is pressed against the upper end of the limiting part 303. The first lower plate 205 is provided with a first through hole 202 at one end adjacent to the battery pack 300. The first sliding block 201 is slidably disposed on the first lower plate 205.

[0030] It should be noted that the side plate 203, the upper plate 204, and the first lower plate 205 are components of the housing 200. The side plate 203 provides lateral support and protection, the upper plate 204 provides sealing and protection, and the first lower plate 205 provides support. The side plate 203 connects the upper plate 204 and the first lower plate 205, forming a whole. This facilitates the installation and setup of the housing 200 and allows the housing 200 to form a space. The side plate 203 is positioned away from the mating block 301, on one side of the mating block 301. This creates a T-shaped space inside the housing 200, allowing the mating block 301 to move within the space. The upper plate 204 is pressed against the upper end of the limiting part 303. At this time, the upper plate 204 can restrict the vertical degree of freedom of the limiting block. The first lower plate 205 is provided with a first through hole 202 at one end adjacent to the battery pack 300. The first through hole 202 allows other components to pass through. The first sliding block 201 is slidably disposed on the first lower plate 205. The first sliding block 201 is disposed on the first lower plate 205, and the first slider can slide relative to the first lower plate 205. In this way, the first sliding block 201 can block the first through hole 202 or allow the first through hole 202 to pass through. The upper plate 204 and the first sliding block 201 can make the mating block 301 locked in the housing 200, restricting its vertical degree of freedom. The side plate 203, the upper plate 204 and the first lower plate 205 can be connected by fasteners.

[0031] In addition, such as Figure 2 , Figure 3 and Figure 6 As shown, the locking assembly 20 further includes: a fixing block 206, which is disposed at one end of the first lower plate 205 adjacent to the side plate 203 and is also connected to the side plate 203; a first suction member 207 is disposed on the side of the first sliding block 201 facing the fixing block 206; and a second suction member 208 is disposed on the side of the fixing block 206 facing the first sliding block 201. When the first suction member 207 and the second suction member 208 are activated, the first suction member 207 and the second suction member 208 attract each other.

[0032] The fixing block 206 allows the first sliding block 201 to move. The fixing block 206 is located at one end of the first lower plate 205 adjacent to the side plate 203. The fixing block 206 is mounted on the first lower plate 205 and is close to the side plate 203. The fixing block 206 and the side plate 203 can be connected by fasteners. A first suction member 207 is provided on the side of the first sliding block 201 facing the fixing block 206, and a second suction member 208 is provided on the side of the fixing block 206 facing the first sliding block 201. The first suction member 207 and the second suction member 208... Both attracting elements 208 can achieve non-contact actuation. When the first attracting element 207 and the second attracting element 208 are activated, they attract each other. That is, when a side collision risk is detected, the electronic control unit can activate the first attracting element 207 and the second attracting element 208. At this time, the first attracting element 207 and the second attracting element 208 attract each other, which forces the first sliding block 201 to move towards the fixed block 206, thereby allowing the first sliding block 201 to move away from above the first through hole 202. Both the first attracting element 207 and the second attracting element 208 can be configured as electrodes.

[0033] Of course, such as Figure 2 , Figure 3 and Figure 6 As shown, the locking assembly 20 further includes a first elastic element 209, one end of which is sleeved on the first attraction element 207, and the other end of which is sleeved on the second attraction element 208. The first elastic element 209 provides elastic force and plays a role in elastic adjustment. Both ends of the first elastic element 209 are respectively sleeved on the first attraction element 207 and the second attraction element 208. In a normal state, the elastic element is in a stretched state. When a side-impact risk is detected, the electronic control unit can activate the first attraction element 207 and the second attraction element 208. At this time, the first attraction element 207 and the second attraction element 208 attract each other, thus forcing the first sliding block 201 to move towards the fixed block 206. During the movement, the first slider compresses the first elastic element 209, ensuring that the first sliding block 201 moves away from above the first through hole 202. The first elastic element 209 can be configured as a spring.

[0034] Furthermore, such as Figure 2 , Figure 3 and Figure 7As shown, the upper end of the limiting part 303 is provided with a mounting groove 304, and the battery pack assembly 30 also includes a second elastic member 305. The second elastic member 305 is disposed in the mounting groove 304, and the second elastic member 305 abuts between the upper plate 204 and the bottom wall of the mounting groove 304. The mounting slot 304 serves as a mounting surface for other components. The second elastic element 305 provides elastic force for adjustment. The second elastic element 305 is positioned within the mounting slot 304 and abuts against the bottom wall of the upper plate 204 and the mounting slot 304. Under normal conditions, the second elastic element 305 is compressed. When a side-impact risk is detected, the first sliding block 201 can move away from above the first through hole 202. Under the influence of gravity and the elastic force of the second elastic element 305, the mating block 301 slides downwards from the first through hole 202. This allows the mating block 301 to slide the battery pack 300 downwards a certain distance, avoiding the collision zone and reducing the risk of impact. The second elastic element 305 can be a spring.

[0035] In addition, such as Figure 4 As shown, in the second embodiment of the present invention: the locking assembly 20 further includes a second sliding block 210, and the housing 200 further includes a plurality of second lower plates 211. The plurality of second lower plates 211 are located above the first lower plate 205, and the plurality of second lower plates 211 are all connected to the side plate 203, and are spaced apart from each other. The second sliding block 210 can slide, and the second lower plates 211 can support. Vertically, the plurality of second lower plates 211 can be set above the first lower plate 205, and the plurality of second lower plates 211 are all connected to the side plate 203. At this time, the plurality of second lower plates 211 and the side plate 203 form a whole, which facilitates the installation and setting of the housing 200. The plurality of second lower plates 211 are spaced apart, which can make the distribution range of the second lower plates 211 wider, and at the same time avoid interference between the plurality of second lower plates 211. Multiple spaces can be formed between the plurality of lower plates, and the cooperating block 301 can move within the space.

[0036] Each of the multiple second lower plates 211 has a second through hole 212 near one end of the battery pack 300. A second sliding block 210 is slidably disposed above the second through hole 212. After the second sliding block 210 moves away from the second through hole 212, the mating block 301 slides down through the second through hole 212. The second through hole 212 allows other components to pass through. The second through hole 212 is disposed on the side near the battery pack 300, which facilitates the mating block 301 to drive the battery pack 300 to slide downward. The second sliding block 210 is disposed above the second through hole 212 and can slide relative to the second through hole 212. Thus, the second sliding block 210 can either block the second through hole 212 or allow the second through hole 212 to pass through. After the second sliding block 210 moves away from the second through hole 212, the mating block 301 slides down through the second through hole 212. 2. Sliding downwards: When a side-impact risk is detected, the locking assembly 20 opens, the second sliding block 210 moves, and the second slider can clear the second through hole 212. This releases the vertical freedom of the mating block 301, allowing it to slide downwards at the second through hole 212. At this time, the mating block 301 can drive the battery pack 300 to slide downwards, allowing it to slide a certain distance. This helps the battery pack 300 avoid the collision zone, reducing the risk of impact and ensuring its safety. It should be noted that the second sliding block 210 does not necessarily need to completely move away from above the second through hole 212. In this case, the second sliding block 210 can control the sliding distance of the mating block 301 and the battery pack 300.

[0037] It should be noted that, as Figure 4 As shown, the cross-sectional width of the second sliding block 210 is greater than the cross-sectional width of the second through hole 212, and the cross-sectional width of the limiting part 303 is less than or equal to the cross-sectional width of the second through hole 212. Since the second sliding block 210 is wider than the second through hole 212, it can be positioned above the second through hole 212 without falling off. The limiting part 303 is wider than or equal to the cross-sectional width of the second through hole 212, allowing the mating block 301 to slide downwards at the second through hole 212 when the second slider is fully removed. This allows the mating block 301 to drive the battery pack 300 downwards, causing it to slide a certain distance. When the second slider is not fully removed, it restricts the downward movement of the limiting part 303, thus achieving a limiting function and controlling the downward sliding distance of the mating block 301 and the battery pack 300.

[0038] In addition, such as Figure 1As shown, the frame 10 includes multiple connecting segments 100, and a locking assembly 20 connected between two adjacent connecting segments 100. The connecting segments 100 can provide support and protection, and the multiple connecting segments 100 can form the frame 10. The locking assembly 20 can be connected between two adjacent connecting segments 100 by welding, in which case the connecting segments 100 can provide support for the locking assembly 20, facilitating the installation and setting of the locking assembly 20.

[0039] The electrical device according to an embodiment of the present invention includes: the battery pack assembly 1 described in the above embodiments.

[0040] Electrical equipment can include vehicles, batteries, motors, controllers, drivers, and memory.

[0041] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 this invention and 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 this invention.

[0042] In the description of this invention, "first feature" and "second feature" may include one or more of the features. In the description of this invention, "a plurality of" means two or more. In the description of this invention, "above" or "below" the second feature may include direct contact between the first and second features, or it may include contact between the first and second features not being in direct contact but through another feature between them. In the description of this invention, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0043] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0044] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery pack assembly (1) characterized by, The application relates to a frame (10), a locking assembly (20) connected to the frame (10), the locking assembly (20) comprising a housing (200) and a first sliding block (201), the bottom of the housing (200) being provided with a first through hole (202), and the first sliding block (201) being slidably arranged above the first through hole (202); and a battery pack assembly (30) comprising a battery pack (300) and a matching block (301), the matching block (301) being connected to the outer circumferential side of the battery pack (300) and being clamped in the housing (200), the matching block (301) being arranged opposite to the first sliding block (201) in the up-down direction, and the matching block (301) sliding downward through the first through hole (202) after the first sliding block (201) moves away from above the first through hole (202). The cross-sectional width of the first sliding block (201) is greater than the cross-sectional width of the first through hole (202), the matching block (301) comprises a main body part (302) and a limiting part (303), the main body part (302) being connected to the lower end of the limiting part (303), the cross-sectional width of the main body part (302) being less than or equal to the cross-sectional width of the first through hole (202), and the cross-sectional width of the limiting part (303) being greater than the cross-sectional width of the first through hole (202). The housing (200) comprises a side plate (203), an upper plate (204) and a first lower plate (205), the side plate (203) being connected between the upper plate (204) and the first lower plate (205) and being arranged away from the matching block (301), the upper plate (204) being tightly pressed against the upper end of the limiting part (303), the first lower plate (205) being provided with the first through hole (202 adjacent to one end of the battery pack (300), and the first sliding block (201) being slidably arranged on the first lower plate (205). The locking assembly (20) further comprises a fixing block (206) arranged on one end of the first lower plate (205) adjacent to the side plate (203) and connected with the side plate (203), the first sliding block (201) being provided with a first attracting member (207) on the side facing the fixing block (206), the fixing block (206) being provided with a second attracting member (208) on the side facing the first sliding block (201), and the first attracting member (207) and the second attracting member (208) attracting each other when the first attracting member (207) and the second attracting member (208) are activated.

2. The battery pack assembly (1) according to claim 1, characterized in that The locking assembly (20) further comprises a first elastic member (209), one end of the first elastic member (209) being sleeved on the first attracting member (207), and the other end of the first elastic member (209) being sleeved on the second attracting member (208).

3. The battery pack assembly (1) according to claim 2, characterized in that ​ 4. The battery pack assembly (1) according to claim 3, characterized in that ​ 5. The battery pack assembly (1) according to claim 4, characterized in that ​ 6. The battery pack assembly (1) of claim 3, characterized in that, An installation slot (304) is arranged at the upper end of the limiting part (303), and the battery pack assembly (30) further comprises a second elastic member (305) arranged in the installation slot (304) and abutting between the upper plate (204) and the bottom wall of the installation slot (304).

7. The battery pack assembly (1) according to claim 3, characterized in that The locking assembly (20) further comprises a second sliding block (210), and the shell (200) further comprises a plurality of second lower plates (211) arranged above the first lower plate (205), wherein each of the second lower plates (211) is connected with the side plate (203) and is arranged in a spaced manner between adjacent second lower plates (211), each of the second lower plates (211) is arranged with a second through hole (212) adjacent to one end of the battery pack (300), and the second sliding block (210) is slidably arranged above the second through hole (212), and after the second sliding block (210) is moved away from above the second through hole (212), the cooperation block (301) slides downward through the second through hole (212).

8. The battery pack assembly (1) according to claim 7, characterized in that The cross-sectional width of the second sliding block (210) is greater than the cross-sectional width of the second through hole (212), and the cross-sectional width of the limiting part (303) is less than or equal to the cross-sectional width of the second through hole (212).

9. The battery pack assembly (1) of claim 1, wherein, The frame (10) comprises a plurality of connection sections (100), and the locking assembly (20) is connected between two adjacent connection sections (100).

10. An electric device, characterized by The battery pack assembly (1) of any one of claims 1-9. The battery pack assembly (1) of any one of claims 1-9.

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