Battery pack and electric device

Abstract

The utility model discloses a battery pack and a power utilization device, the battery pack has a first direction and a second direction which are intersected, the battery pack comprises a battery pack and a box body, the battery pack comprises a plurality of single batteries arranged along the second direction, the box body is provided with an accommodating cavity, and the battery pack is arranged in the accommodating cavity; the box body comprises at least two first plates and at least one second plate, and the at least two first plates are arranged at intervals in the first direction; the second plates are arranged between the two adjacent first plates and are respectively connected with the two first plates to define a containing cavity; the second plate comprises a first adjusting plate and a second adjusting plate, and the first adjusting plate is connected with the two adjacent first plates; the second adjusting plate comprises a second body and a first fixing plate, and the first fixing plate is connected with the second body; the first fixing plate is connected with the first adjusting plate, and the second body can move in the direction close to or away from the first adjusting plate. The size of the second plate can be adjusted so that one plate can be used for multiple purposes, and therefore the cost is reduced.

Description

Technical Field

[0001] This application belongs to the field of battery technology, specifically relating to a battery pack and an electrical device. Background Technology

[0002] In moduleless battery packs, multiple stacked individual cells are typically placed directly into the housing, saving significant space. When assembling the individual cells into the housing, a certain assembly gap needs to be left between them and the surrounding structure to accommodate assembly tolerances. After placement, potting compound is filled into the assembly gap to complete the battery placement process. At this point, the longitudinal and transverse beams of the battery pack housing need to be appropriately sized according to the dimensions of the assembled battery pack. This necessitates different beam sizes for different battery pack structures, resulting in higher production costs for the battery pack housing and the potential for errors that could affect the assembly quality. Utility Model Content

[0003] The purpose of this utility model is to provide a battery pack that addresses the problem of high production costs and assembly errors caused by the low versatility of the crossbeams in existing battery pack housings. Another purpose of this application is to provide an electrical device.

[0004] Technical Solution: An embodiment of this application describes a battery pack having intersecting first and second directions, including a battery assembly and a housing. The battery assembly includes multiple individual batteries arranged along the second direction. The housing has at least one receiving cavity, and the battery assembly is disposed within the receiving cavity. The housing includes at least two first plates and at least one second plate, with the at least two first plates spaced apart along the first direction. The second plate is disposed between two adjacent first plates and connected to each of the two first plates. The first and second plates form at least one receiving cavity. The second plate includes a first adjusting plate and a second adjusting plate, with the first adjusting plate connected to two adjacent first plates. The second adjusting plate includes a second body and a first fixing plate, with the first fixing plate connected to the second body. The first fixing plate is connected to the first adjusting plate, and the second body is movable in a direction approaching or away from the first adjusting plate.

[0005] In some embodiments, the first adjustment plate includes:

[0006] The first body is connected to the first fixing plate and is disposed opposite to the second body;

[0007] Two adjustment parts are disposed on both sides of the first body along the first direction and are both connected to the first body; along the second direction, the size of the adjustment parts is larger than the size of the first body; the adjustment parts are detachably connected to the first plate, and the first adjustment plate can move along the second direction.

[0008] In some embodiments,

[0009] The adjusting part has a first adjusting hole, which penetrates the adjusting part along the first direction. The first adjusting hole is a strip-shaped hole and extends along the second direction.

[0010] The housing includes a first connector, a portion of which passes through the first adjustment hole and is detachably connected to the first plate.

[0011] In some embodiments, the second adjusting plate further includes a second fixing plate, which is disposed on the side of the first body away from the first fixing plate and connected to the second body; the first body is connected to the second fixing plate.

[0012] In some embodiments,

[0013] The first fixing plate has a first fixing hole, which penetrates the first fixing plate along the arrangement direction of the first fixing plate and the second fixing plate;

[0014] The second fixing plate has a second fixing hole, which penetrates the second fixing plate along the arrangement direction of the first fixing plate and the second fixing plate; the second fixing hole and the first fixing hole share a common central axis;

[0015] The first body has a second adjustment hole, which penetrates the first body along the arrangement direction of the first fixing plate and the second fixing plate. The second adjustment hole is a strip-shaped hole and extends along the arrangement direction of the first body and the second body.

[0016] The second plate also includes a second connector, which is movably inserted into the first fixing hole and the second adjusting hole, and is detachably inserted into the second fixing hole.

[0017] In some embodiments,

[0018] The housing includes a bottom plate, and two first plates are connected to the bottom plate to form the receiving cavity;

[0019] The second body is disposed between the first body and the battery; the first fixing plate is disposed on the side of the first body away from the base plate, the second fixing plate is disposed on the side of the first body facing the base plate, and the second adjusting plate is movable along the second direction.

[0020] In some embodiments,

[0021] The battery pack has a third direction that intersects the first direction and the second direction respectively; the housing includes a bottom plate and at least one third plate, the two first plates are respectively connected to the bottom plate and at least one third plate, the at least one third plate is spaced apart from the second plate along the second direction, and the second plate, the third plate, the bottom plate and the two first plates are used to form a receiving cavity;

[0022] The second body is disposed on the side of the first body away from the base plate; the first fixing plate is disposed on one side of the first body along the second direction, the second fixing plate is disposed on the side of the first body away from the first fixing plate, and the second adjusting plate is movable along the third direction.

[0023] In some embodiments,

[0024] The first fixing plate has a first space, which penetrates the side of the first fixing plate away from the first body; the first fixing hole penetrates the side of the first fixing plate facing the first body and communicates with the first space; the end of the second connector away from the second fixing plate is located in the first space, and the end of the second connector away from the first fixing plate is located in the second fixing hole.

[0025] The second fixing plate has a second space that extends through the side of the second fixing plate away from the first body; the second fixing hole extends through the side of the second fixing plate facing the first body and communicates with the second space; the end of the second connector away from the first fixing plate passes through the second fixing hole and is located in the second space.

[0026] In some embodiments, the second plate further includes a nut, which is embedded in the second fixing hole, and the end of the second connector away from the first fixing plate is screwed into the nut.

[0027] In some embodiments, the adjustment portion has a plurality of first adjustment holes, which are spaced apart and all extend along the second direction.

[0028] Accordingly, the electrical device described in this application includes the battery pack described in any of the foregoing embodiments.

[0029] Beneficial effects: Compared with the prior art, a battery pack according to an embodiment of this application has intersecting first and second directions, including a battery pack and a housing. The battery pack includes a plurality of individual batteries arranged along the second direction. The housing has at least one receiving cavity, and the battery pack is disposed in the receiving cavity. The housing includes at least two first plates and at least one second plate. The at least two first plates are spaced apart along the first direction. The second plate is disposed between two adjacent first plates and is connected to the two first plates respectively. The first and second plates are used to form at least one receiving cavity. The second plate includes a first adjusting plate and a second adjusting plate. The first adjusting plate is connected to two adjacent first plates respectively. The second adjusting plate includes a second body and a first fixing plate. The first fixing plate is connected to the second body. The first fixing plate is connected to the first adjusting plate, and the second body can move in a direction close to or away from the first adjusting plate. This application uses a second plate and a first plate to form a cavity for accommodating a battery pack. The second plate is configured as a combination of a first adjusting plate and a second adjusting plate. The second body of the second adjusting plate can move towards or away from the first adjusting plate, thereby adjusting the distance between the second body and the first adjusting plate, and consequently, adjusting the external dimensions of the second adjusting plate. When the second body is oriented towards a single battery cell, the distance between the second plate and the battery cell can be adjusted, thus adjusting the assembly gap between the second plate and the battery. When the second body and the first adjusting plate are positioned along the height of the battery, the second plate can adapt to battery pack housings of different depths, ensuring effective fixation of the second plate to the battery pack. Therefore, this structure of the second plate improves its versatility, allowing it to adapt to different housings for multiple uses, effectively reducing battery pack production costs and minimizing the impact of dimensional errors in the second plate on the assembly effect.

[0030] Compared with the prior art, an electrical device according to an embodiment of this application includes the battery pack described in any of the foregoing embodiments. It is understood that the electrical device according to an embodiment of this application includes all the technical features and effects of the foregoing embodiments, which will not be repeated here. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1This is a schematic diagram of the overall structure of a battery pack according to an embodiment of this application;

[0033] Figure 2 This is an exploded view of a battery pack according to an embodiment of this application;

[0034] Figure 3 This is a schematic diagram of the structure of a box according to an embodiment of this application;

[0035] Figure 4 yes Figure 3 Enlarged view of section A;

[0036] Figure 5 This is a schematic diagram of the overall structure of a second plate component according to an embodiment of this application;

[0037] Figure 6 This is a cross-sectional view of a second plate component according to an embodiment of this application, perpendicular to the first direction.

[0038] Figure 7 This is a schematic diagram of the overall structure of a second adjusting plate according to an embodiment of this application;

[0039] Figure 8 This is a schematic diagram of the structure of a second adjusting plate with an embedded nut according to an embodiment of this application;

[0040] Figure 9 This is a schematic diagram of the overall structure of a first adjusting plate according to an embodiment of this application;

[0041] Figure 10 This is a cross-sectional schematic diagram of a second plate in an embodiment of this application, perpendicular to the second direction;

[0042] Figure 11 This is an exploded view of another battery pack according to an embodiment of this application;

[0043] Figure 12 This is a schematic diagram of another type of housing structure according to an embodiment of this application;

[0044] Figure 13 yes Figure 12 Enlarged view of section B;

[0045] Figure 14 This is a schematic diagram of the overall structure of another second plate component according to an embodiment of this application;

[0046] Figure 15 This is a schematic diagram of the overall structure of another second adjusting plate according to an embodiment of this application;

[0047] Figure 16 This is a schematic diagram of another structure of the second adjusting plate with an embedded nut according to an embodiment of this application;

[0048] Figure 17This is a schematic diagram of the structure of the first fixing plate of another second adjusting plate according to an embodiment of this application;

[0049] Figure 18 This is a schematic diagram of the structure of the second fixing plate of another embodiment of the second adjusting plate in this application;

[0050] Figure 19 This is a schematic diagram of the overall structure of another first adjusting plate according to an embodiment of this application;

[0051] Figure 20 This is a cross-sectional view of another second plate component in an embodiment of this application, along a direction perpendicular to a third party.

[0052] Figure 21 This is a cross-sectional view of another second plate component in an embodiment of this application, perpendicular to the first direction.

[0053] Reference numerals: 1. Battery pack; 11. Individual cell; 2. Housing; 21. Receiving cavity; 22. First plate; 23. Second plate; 231. First adjusting plate; 2311. First body; 23111. Second adjusting hole; 2312. Adjusting part; 23121. First adjusting hole; 232. Second adjusting plate; 2321. Second body; 2322. First fixing plate; 23221. First fixing hole; 23222. First space; 2323. Second fixing plate; 23231. Second fixing hole; 23232. Second space; 2324. Adjusting space; 233. Second connector; 234. Nut; 24. First connector; 25. Base plate; X. First direction; Y. Second direction; Z. Third direction. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0055] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, and "at least one" can mean one, two, or more, unless otherwise explicitly specified. In the description of this application, "perpendicular" means completely perpendicular to 90° or almost completely perpendicular, for example, the range of included angles from 80° to 100° is considered perpendicular. Similarly, "parallel" means completely parallel or almost completely parallel, for example, the range of completely parallel angles from 10° is considered parallel.

[0056] It should also be noted that in the accompanying drawings of this application, arrows labeled X indicate the first direction X, arrows labeled Y indicate the second direction Y, and arrows labeled Z indicate the third direction Z. The introduction of the first direction X, the second direction Y, and the third direction Z is to facilitate the description of the structural positional relationships of the battery pack, thereby aiding in understanding its structure. In the embodiments of this application, the first direction X is the length direction of the second plate, the second direction Y is the arrangement direction of the multiple individual cells, and the third direction Z is the height direction of the individual cells; furthermore, the first direction X, the second direction Y, and the third direction Z intersect each other, and are perpendicular to each other.

[0057] With the rapid development of new energy sources, the pursuit of efficient battery pack volume utilization is becoming increasingly stringent, making the design of individual battery cells in clusters crucial. Currently, module-less battery pack technology is quite mature, eliminating the need for modules and directly arranging the battery pack within the housing, saving significant space. However, individual batteries still need to be stacked into clusters before being placed into the housing. When placing the battery clusters into the housing, a certain gap needs to be left between them and the surrounding structure to allow for assembly tolerances and facilitate placement. After placement, potting compound is filled into the gaps to secure the battery clusters within the housing. The housing dimensions need to be tailored to the size of the assembled battery clusters, requiring crossbeams of varying widths or heights. This reduces the versatility of the crossbeams, increasing battery pack production costs. Furthermore, improperly designed crossbeam dimensions can lead to dimensional issues with the housing, increasing errors and affecting assembly quality.

[0058] In view of this, embodiments of this application provide a battery pack designed to solve the above-mentioned problems.

[0059] Please refer to the following: Figures 1-3 , Figures 5-6 , Figures 11-12 , Figure 14 and Figure 21 A battery pack according to an embodiment of this application has an intersecting first direction X and a second direction Y, including a battery pack 1 and a housing 2. The battery pack 1 includes a plurality of individual batteries 11 arranged along the second direction Y. The housing 2 has at least one receiving cavity 21, and the battery pack 1 is disposed in the receiving cavity 21. The housing 2 includes at least two first plates 22 and at least one second plate 23. The at least two first plates 22 are spaced apart along the first direction X. The second plate 23 is disposed between two adjacent first plates 22 and is connected to the two first plates 22 respectively. The first plate 22 and the second plate 23 are used to form at least one receiving cavity 21; the second plate 23 includes a first adjusting plate 231 and a second adjusting plate 232, the first adjusting plate 231 is connected to two adjacent first plates 22 respectively; the second adjusting plate 232 includes a second body 2321 and a first fixing plate 2322, the first fixing plate 2322 is connected to the second body 2321; the first fixing plate 2322 is connected to the first adjusting plate 231, and the second body 2321 can move in a direction close to or away from the first adjusting plate 231.

[0060] In this embodiment, a cavity 21 is formed by a second plate 23 and a first plate 22 to accommodate the battery pack 1. The second plate 23 is configured as a combination of a first adjusting plate 231 and a second adjusting plate 232. The second body 2321 of the second adjusting plate 232 can move towards or away from the first adjusting plate 231, thereby adjusting the distance between the second body 2321 and the first adjusting plate 231, and consequently, adjusting the external dimensions of the second adjusting plate 232. When the second body 2321 is positioned toward the individual battery 11, the distance between the second plate and the individual battery can be adjusted, thereby adjusting the assembly gap between the second plate 23 and the battery. When the second body 2321 and the first adjusting plate 231 are positioned along the height of the battery, the second plate 23 can adapt to battery pack housings 2 of different depths, ensuring the effective fixation of the second plate 23 to the battery pack 1. Therefore, this type of second plate can improve the versatility of the second plate 23, enabling the second plate 23 to be adapted to different housings 2, so as to achieve multiple uses of one plate, thereby effectively reducing the production cost of battery packs, and reducing the impact of the dimensional error of the second plate 23 on the assembly effect.

[0061] Specifically, the second plate 23 in this embodiment of the application can be as follows: Figures 3-10 In the structure shown, the second body 2321 is positioned opposite the first adjusting plate 231 along the second direction Y, and the second body 2321 can move along the second direction Y towards or away from the first adjusting plate 231. This allows for adjustable distance between the second body 2321 and the individual battery 11, meaning the dimensions of the portion of the second plate 23 opposite the battery pack 1 along the second direction Y are adjustable. This allows for adjustment of the dimensions of the receiving cavity 21 along the second direction Y, absorbing the gap between the second plate 23 and the battery pack 1, facilitating the injection of potting compound and avoiding waste. Simultaneously, the adjustable position of the second body 2321 allows the second plate 23 to be adapted to different sized housings 2. Adjusting the position of the second body 2321 alone adjusts the size of the receiving cavity 21, enabling the housing 2 to accommodate battery packs 1 of different sizes, improving applicability and effectively reducing costs.

[0062] Furthermore, the second plate 23 in this embodiment of the application can also be as follows: Figures 12-21In the structure shown, the second body 2321 is positioned opposite to the first adjusting plate 231 along the third direction Z, and the second body 2321 can move along the third direction Z towards or away from the first adjusting plate 231, thereby making the size of the part of the second plate 23 opposite to the battery pack 1 adjustable along the third direction Z. At this time, according to the size of the first plate 22 of the battery pack housing 2 along the third direction Z and the size of the individual battery 11 along the third direction Z, the size of the second plate 23 along the third direction Z is flexibly adjusted to match the size of the second plate 23 with the first plate 22 and the individual battery 11 along the third direction Z. At this time, the first fixing plate 2322 is positioned opposite to the battery pack 1 along the second direction Y. By using the cooperation between the first fixing plate 2322 and the first adjusting plate 231, and filling the space between the second plate 23 and the battery pack 1 with potting compound, it can be ensured that the functional battery pack 1 and the potting compound have a suitable contact area, thereby improving the fixing effect of the battery pack 1.

[0063] like Figure 5 As shown, in some embodiments, the first adjusting plate 231 includes a first body 2311 and two adjusting parts 2312. The first body 2311 is connected to the first fixing plate 2322 and is disposed opposite to the second body 2321. The two adjusting parts 2312 are disposed on both sides of the first body 2311 along the first direction X and are both connected to the first body 2311. Along the second direction Y, the size of the adjusting part 2312 is larger than the size of the first body 2311. The adjusting part 2312 is detachably connected to the first plate 22, and the first adjusting plate 231 can move along the second direction Y.

[0064] In this embodiment, two adjusting parts 2312 are detachably connected to the adjacent first plate 22, thereby enabling the first adjusting plate 231 to move along the second direction Y. The second adjusting plate 232 is connected to the first adjusting plate 231. Therefore, the movement of the first adjusting plate 231 along the second direction Y drives the second adjusting plate 231 to move along the second direction Y, thus enabling the second plate 23 to move as a whole along the second direction Y. This allows for further adjustment of the size of the receiving cavity 21 along the second direction Y by adjusting the first adjusting plate 231, thereby achieving better absorption of assembly tolerances between the battery pack 1 and the battery pack 1. This further avoids the waste of potting compound caused by a large gap between the second plate 23 and the battery pack 1, and also avoids the inability to potting compound due to an excessively small assembly gap, as well as the problem of the assembled battery pack 1 not being able to be smoothly installed in the box.

[0065] In addition, it is understood that in this embodiment of the application, by setting the size of the adjustment part 2312 along the second direction Y to be larger than the size of the first body 2311 along the second direction Y, it can be ensured that the adjustment part 2312 can be exposed from both sides of the first body 2311, providing space for the first adjustment hole 23121, facilitating the connection and fixation between the adjustment part 2312 and the first plate 22, and ensuring that there is a large contact and fixation area between the two.

[0066] like Figures 4-6 , Figure 13 and Figure 14 As shown, in some embodiments, the adjustment part 2312 has a first adjustment hole 23121, the first adjustment hole 23121 extends through the adjustment part 2312 along the first direction X, the first adjustment hole 23121 is a strip hole, and the first adjustment hole 23121 extends along the second direction Y; the housing 2 includes a first connector 24, a portion of the first connector 24 passes through the first adjustment hole 23121, and is detachably connected to the first plate 22.

[0067] In this embodiment of the application, by providing a first adjustment hole 23121, and the first adjustment hole 23121 being a strip-shaped hole extending along the second direction Y, by loosening the first connector 24, the position of the first connector 24 within the first adjustment hole 23121 can be adjusted, thereby enabling the first adjustment plate 231 to move in the second direction Y, and enabling the adjustment of the specific position of the second plate 23 in the second direction Y, thereby realizing the adjustment of the size of the receiving cavity 21 along the second direction Y.

[0068] Please refer to the following: Figures 6-8 , Figures 14-16 and Figures 20-21 In some embodiments, the second adjusting plate 232 further includes a second fixing plate 2323, which is disposed on the side of the first body 2311 away from the first fixing plate 2322 and connected to the second body 2321; the first body 2311 is connected to the second fixing plate 2323.

[0069] In this embodiment, by setting the second fixing plate 2323 to cooperate with the first fixing plate 2322 and jointly connect and fix it to the first body 2311, the stability of the connection and fixation between the second adjusting plate 232 and the first adjusting plate 231 is ensured. Simultaneously, the first fixing plate 2322, the second fixing plate 2323, and the second body 2321 enclose an adjusting space 2324, allowing at least a portion of the first body 2311 to be located within this adjusting space 2324, thus achieving positioning and limiting of the first body 2311. Furthermore, the fixed connection between the first body 2311 and the first fixing plate 2322 and the second fixing plate 2323 can effectively close the adjusting space 2324 from one side, minimizing the amount of potting compound entering the adjusting space 2324 during subsequent injection, thereby avoiding waste. Additionally, the connection between the first fixing plate 2322 and the second fixing plate 2323 and the first body 2311 provides better support and fixation for the first body 2311, and to a certain extent, prevents deformation of the first body 2311 under stress.

[0070] Please refer to the following: Figures 6-9 and Figures 15-20 In some embodiments, the first fixing plate 2322 has a first fixing hole 23221, which penetrates the first fixing plate 2322 along the arrangement direction of the first fixing plate 2322 and the second fixing plate 2323; the second fixing plate 2323 has a second fixing hole 23231, which penetrates the second fixing plate 2323 along the arrangement direction of the first fixing plate 2322 and the second fixing plate 2323; the second fixing hole 23231 and the first fixing hole 23221 share a common central axis; the first body 2311 has The second adjustment hole 23111 extends through the first body 2311 along the arrangement direction of the first fixing plate 2322 and the second fixing plate 2323. The second adjustment hole 23111 is a strip-shaped hole and extends along the arrangement direction of the first body 2311 and the second body 2321. The second plate 23 also includes a second connector 233, which is movably inserted into the first fixing hole 23221 and the second adjustment hole 23111, and is detachably inserted into the second fixing hole 23231.

[0071] In this embodiment of the application, by providing a second connector 233, a first fixing hole 23221, a second fixing hole 23231 and a second adjusting hole 23111, a detachable connection between the first adjusting plate 231 and the second adjusting plate 232 can be realized, thereby enabling the second body 2321 to move in a direction close to or away from the first body 2311, thereby adjusting the size of the second plate 23.

[0072] Specifically, by loosening the second connector 233, the clamping state of the first fixing plate 2322 and the second fixing plate 2323 on the first body 2311 is released, making the first body 2311 movable. At this time, by moving the first adjusting plate 231, the relative position of the second connector 233 in the second adjusting hole 23111 is changed. This allows the specific position of the first body 2311 in the adjusting space 2324 to absorb gaps, or to adjust the area of ​​the side of the second plate 23 opposite to the single battery 11 to provide a better fixing effect for the single battery 11.

[0073] like Figures 2-6 and Figure 10 As shown, in some embodiments, the housing 2 includes a bottom plate 25, two first plates 22 connected to the bottom plate 25 to form a receiving cavity 21; a second body 2321 is disposed between the first body 2311 and the battery; a first fixing plate 2322 is disposed on the side of the first body 2311 away from the bottom plate 25, a second fixing plate 2323 is disposed on the side of the first body 2311 facing the bottom plate 25, and a second adjusting plate 232 is movable along the second direction Y.

[0074] In this embodiment, the second body 2321 can be set perpendicular to the base plate 25. The second body 2321 can move along the second direction Y, thereby adjusting the size of the receiving cavity 21 along the second direction Y. This allows for flexible adjustment of the gap between the second plate 23 and the battery, enabling the smooth installation of the battery pack 1. It also allows the gap to be adjusted within a reasonable range, facilitating the injection of an appropriate amount of potting compound. This ensures effective fixation and insulation of the battery, while also preventing excessive injection and waste of potting compound due to an excessively large gap.

[0075] It should be noted that in this embodiment, the second fixing plate 2323 is disposed on the side of the first body 2311 facing the base plate 25. At this time, the second fixing plate 2323 can slide on the base plate 25, thereby realizing the movement of the second body 2321 along the second direction Y.

[0076] It should also be noted that when the second body 2321 can move along the second direction Y, the second adjustment hole 23111 penetrates the first body 2311 along the third direction Z, and the second adjustment hole 23111 extends along the second direction Y. At this time, the second connector 233 can move along the second direction Y within the second adjustment hole 23111.

[0077] like Figures 11-14 and Figure 21As shown, in some embodiments, the battery pack has a third direction Z intersecting the first direction X and the second direction Y respectively; the housing 2 includes a bottom plate 25 and at least one third plate 26, two first plates 22 are respectively connected to the bottom plate 25 and at least one third plate 26, at least one third plate 26 is spaced apart from the second plate 23 along the second direction Y, and the second plate 23, the third plate 26, the bottom plate 25 and the two first plates 22 are used to form a receiving cavity 21; the second body 2321 is disposed on the side of the first body 2311 away from the bottom plate 25; the first fixing plate 2322 is disposed on the side of the first body 2311 along the second direction Y, the second fixing plate 2323 is disposed on the side of the first body 2311 away from the first fixing plate 2322, and the second adjusting plate 232 is movable along the third direction Z.

[0078] In this embodiment, the second body 2321 can be arranged parallel to the base plate 25. At this time, the second body 2321 can move along the third direction Z, thereby adjusting the size of the second plate 23 along the third direction Z. This allows adjustment of the side area of ​​the second plate 23 facing the battery along the second direction Y. Specifically, the size of the second plate 23 along the third direction Z can be adjusted according to the size of the battery and the first plate 22, so that the surface area of ​​the second plate 23 facing the battery corresponds to the side area of ​​the battery. This facilitates the pouring of potting compound to a suitable height and improves the positioning and fixing effect of the single battery 11.

[0079] It should be noted that, in this embodiment, while the second body 2321 is adjusted along the third direction Z, the second adjustment hole 23111 and the second connector 233 can cooperate with each other to adjust the position of the second plate 23 as a whole along the second direction Y, thereby adjusting the gap between the battery and the second plate 23, which facilitates the installation of the battery pack 1 and the injection of an appropriate amount of potting compound.

[0080] It should also be noted that the housing 2 of this application further includes at least one third plate 26. In this case, the third plate 26, the two first plates 22, the second plate 23, and the bottom plate 25 form a receiving cavity 21. Through the adjustable characteristics of the second plate 23, the size of the receiving cavity 21 along the second direction Y can be adjusted, thus effectively absorbing assembly gaps and assembly errors, ensuring that the single battery cell 11 can be smoothly assembled into the receiving cavity 21. Of course, there can also be two third plates 26. The two third plates 26 are arranged along the second direction Y on both sides of the second plate 23 and are spaced apart from the second plate 23. In this case, there is a receiving cavity 21 between the second plate 23 and each third plate 26, which can increase the capacity of the battery pack.

[0081] Please refer to the following: Figures 14-18 , Figure 20 and Figure 21In some embodiments, the first fixing plate 2322 has a first space 23222, which penetrates the side of the first fixing plate 2322 away from the first body 2311; a first fixing hole 23221 penetrates the side of the first fixing plate 2322 facing the first body 2311 and communicates with the first space 23222; one end of the second connector 233 away from the second fixing plate 2323 is located in the first space 23222, and the second connector 233 away from the first fixing plate 2322... One end is located in the second fixing hole 23231; the second fixing plate 2323 has a second space 23232, the second space 23232 passes through the side of the second fixing plate 2323 away from the first body 2311; the second fixing hole 23231 passes through the side of the second fixing plate 2323 facing the first body 2311 and communicates with the second space 23232; the end of the second connector 233 away from the first fixing plate 2322 passes through the second fixing hole 23231 and is located in the second space 23232.

[0082] In this embodiment, by providing a first space 23222 on the first fixing plate 2322 to accommodate a portion of the second connector 233, the portion of the second connector 233 is prevented from protruding from the side of the first fixing plate 2322 away from the first body 2311; by providing a second space 23232 on the second fixing plate 2323 to accommodate a portion of the second connector 233, the portion of the second connector 233 is prevented from protruding from the side of the second fixing plate 2323 away from the first body 2311; thus, when the battery pack 1 is installed, the second connector 233 protruding on the outside can be prevented from interfering with the battery pack 1, and the gap between the second plate 23 and the single cell 11 can be reduced, which is convenient for saving potting compound.

[0083] Please refer to the following: Figure 8 , Figure 10 , Figure 16 , Figure 20 and Figure 21 In some embodiments, the second plate 23 further includes a nut 234, which is embedded in the second fixing hole 23231, and the end of the second connector 233 away from the first fixing plate 2322 is screwed into the nut 234.

[0084] In this embodiment of the application, by embedding a nut 234 in the second fixing hole 23231, the locking strength of the second connector 233 can be increased, thereby improving the structural stability of the second adjusting plate 232 after adjustment.

[0085] Specifically, the first fixing plate 2322 and the second fixing plate 2323 can be profile parts with cavities in the middle. By embedding nuts 234, the thread width can be increased, thus improving the fastening connection effect.

[0086] Please refer to the following: Figure 5 , Figure 6 , Figure 9 , Figure 14 , Figure 19 and Figure 21 In some embodiments, the adjustment part 2312 has a plurality of first adjustment holes 23121, which are spaced apart and all extend along the second direction Y.

[0087] In this embodiment of the application, by setting multiple first adjustment holes 23121, multiple connection and fixing points can be set between the first plate 22 and the second plate 23, thereby improving the stability of the connection and fixing. At the same time, multiple points can move along the second direction Y simultaneously, which can maintain the overall translation of the second plate 23 without skewing.

[0088] Accordingly, the electrical device described in this application includes the battery pack described in any of the foregoing embodiments.

[0089] It is understood that the electrical device in this application embodiment includes all the technical features and effects of the battery pack in the foregoing embodiment, and will not be repeated here.

[0090] Of course, the electrical devices referred to in this application can be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools, etc. Vehicles can be new energy vehicles, including pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles; spacecraft include airplanes, rockets, space shuttles, and spacecraft; electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers. This application does not impose any special limitations on the above-mentioned electrical devices.

[0091] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0092] The battery pack and power device provided in the embodiments of this application have been described in detail above, and specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery pack, characterized in that, Having intersecting first and second directions, including: The battery pack includes a plurality of individual cells arranged along the second direction; A housing having at least one receiving cavity, wherein the battery pack is disposed in the receiving cavity; the housing includes: At least two first plates are spaced apart along the first direction; At least one second plate is disposed between two adjacent first plates and connected to each of the two first plates; the first plates and the second plates are used to form at least one of the receiving cavities; The second plate includes: The first adjusting plate is connected to two adjacent first plates respectively; The second adjusting plate includes a second body and a first fixing plate, the first fixing plate being connected to the second body; the first fixing plate being connected to the first adjusting plate, and the second body being capable of moving towards or away from the first adjusting plate.

2. The battery pack according to claim 1, characterized in that, The first adjusting plate includes: The first body is connected to the first fixing plate and is disposed opposite to the second body; Two adjustment parts are disposed on both sides of the first body along the first direction and are both connected to the first body; along the second direction, the size of the adjustment part is larger than the size of the first body; the adjustment part is detachably connected to the first plate, and the first adjustment plate can move along the second direction.

3. The battery pack according to claim 2, characterized in that, The adjusting part has a first adjusting hole, which penetrates the adjusting part along the first direction. The first adjusting hole is a strip-shaped hole and extends along the second direction. The housing includes a first connector, a portion of which passes through the first adjustment hole and is detachably connected to the first plate.

4. The battery pack according to claim 2, characterized in that, The second adjusting plate also includes a second fixing plate, which is disposed on the side of the first body away from the first fixing plate and connected to the second body; the first body is connected to the second fixing plate.

5. The battery pack according to claim 4, characterized in that, The first fixing plate has a first fixing hole, which penetrates the first fixing plate along the arrangement direction of the first fixing plate and the second fixing plate; The second fixing plate has a second fixing hole, which penetrates the second fixing plate along the arrangement direction of the first fixing plate and the second fixing plate; the second fixing hole and the first fixing hole share a common central axis; The first body has a second adjustment hole, which penetrates the first body along the arrangement direction of the first fixing plate and the second fixing plate. The second adjustment hole is a strip-shaped hole and extends along the arrangement direction of the first body and the second body. The second plate also includes a second connector, which is movably inserted into the first fixing hole and the second adjusting hole, and is detachably inserted into the second fixing hole.

6. The battery pack according to claim 5, characterized in that, The housing includes a bottom plate, and two first plates are connected to the bottom plate to form the receiving cavity; The second body is disposed between the first body and the battery; the first fixing plate is disposed on the side of the first body away from the base plate, the second fixing plate is disposed on the side of the first body facing the base plate, and the second adjusting plate is movable along the second direction.

7. The battery pack according to claim 5, characterized in that, The battery pack has a third direction that intersects the first direction and the second direction respectively; the housing includes a bottom plate and at least one third plate, the two first plates are respectively connected to the bottom plate and at least one third plate, the at least one third plate is spaced apart from the second plate along the second direction, and the second plate, the third plate, the bottom plate and the two first plates are used to form a receiving cavity; The second body is disposed on the side of the first body away from the base plate; the first fixing plate is disposed on one side of the first body along the second direction, the second fixing plate is disposed on the side of the first body away from the first fixing plate, and the second adjusting plate is movable along the third direction.

8. The battery pack according to claim 7, characterized in that, The first fixing plate has a first space, which penetrates the side of the first fixing plate away from the first body; the first fixing hole penetrates the side of the first fixing plate facing the first body and communicates with the first space; the end of the second connector away from the second fixing plate is located in the first space, and the end of the second connector away from the first fixing plate is located in the second fixing hole. The second fixing plate has a second space that extends through the side of the second fixing plate away from the first body; the second fixing hole extends through the side of the second fixing plate facing the first body and communicates with the second space; the end of the second connector away from the first fixing plate passes through the second fixing hole and is located in the second space.

9. The battery pack according to claim 5, characterized in that, The second plate also includes a nut, which is embedded in the second fixing hole, and the end of the second connector away from the first fixing plate is screwed into the nut.

10. The battery pack according to claim 3, characterized in that, The adjustment part has a plurality of first adjustment holes, which are spaced apart and all extend along the second direction.

11. An electrical appliance, characterized in that, Includes the battery pack as described in any one of claims 1-10.

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