Battery pack and electric device

Abstract

The utility model relates to the technical field of batteries, and discloses a battery pack and a power utilization device, and the battery pack comprises a box body, a cover body, a plurality of batteries, an information acquisition assembly, an electrical isolation plate and a pressing strip. The box body is provided with a containing cavity, and the cover body is connected with the box body and covers the containing cavity. And the plurality of batteries are arranged in the accommodating cavity. The information acquisition assembly is connected with the battery and located on the side, close to the cover body, of the battery. The electrical isolation plate is connected to the side, close to the cover body, of the information acquisition assembly. The pressing strip comprises a pressing strip body and a plurality of protruding blocks, and the protruding blocks are connected to the side, close to the battery, of the pressing strip body and connected with the battery. A first avoiding groove is defined by every two adjacent protruding blocks and the pressing strip body, and the information collecting assembly and part of the electrical isolation plate are arranged in the first avoiding grooves in a penetrating mode. Due to the existence of the first avoiding groove, enough placing space is reserved for the electrical isolation plate and the information acquisition assembly. And the electrical isolation plate is prevented from extruding the information acquisition assembly after the pressing strip main body abuts against the electrical isolation plate, so that the damage to the information acquisition assembly is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a battery pack and a power utilization device. BACKGROUND

[0002] The battery pack includes a battery, a pressing strip and an information acquisition assembly. Due to the limited space in the battery pack, the pressing strip is easy to press the information acquisition assembly, causing unstable signal acquisition or damage to the information acquisition assembly, thereby affecting the use performance and service life of the battery pack. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a battery pack and a power utilization device to solve the technical problem that the pressing strip is easy to press the information acquisition assembly, causing unstable signal acquisition or damage to the information acquisition assembly.

[0004] In a first aspect, the present application provides a battery pack having a first direction, a second direction and a third direction intersecting with each other, comprising:

[0005] a box body having a receiving cavity;

[0006] a cover body connected to the box body and covering the receiving cavity;

[0007] a plurality of batteries arranged in the receiving cavity and arranged along the first direction;

[0008] an information acquisition assembly extending along the second direction and connected to a side of the battery close to the cover body;

[0009] an electrical isolation plate connected to a side of the information acquisition assembly close to the cover body;

[0010] a pressing strip along the third direction, at least part of the pressing strip is located at a side of the electrical isolation plate close to the cover body, the pressing strip includes a pressing strip body and a plurality of protrusions, the protrusions are connected to a side of the pressing strip body close to the battery, and the protrusions are connected to the battery, a plurality of the protrusions are arranged along the first direction, and adjacent two protrusions and the pressing strip body form a first avoiding slot, and the information acquisition assembly and part of the electrical isolation plate are arranged in the first avoiding slot.

[0011] Optionally, the number of the first avoiding slots is a plurality, and a plurality of the first avoiding slots are arranged along the first direction.

[0012] The number of the information acquisition assemblies is a plurality, and a plurality of the information acquisition assemblies are arranged along the first direction, and each information acquisition assembly is arranged in one first avoiding slot.

[0013] Optionally, a plurality of the batteries are arranged along the first direction to form a battery pack, and a plurality of the battery packs are arranged along the second direction.

[0014] The number of the pressing strips is a plurality, and the plurality of the pressing strips are arranged at intervals along the second direction; along the third direction, each pressing strip is arranged in one battery pack; and each pressing strip body is connected to the battery of the battery pack through the protrusion.

[0015] Optionally, the electrical isolation plate comprises a body part and a penetrating part connected to each other; along the third direction, the penetrating part is located between the information acquisition assembly and the pressing strip body, and the penetrating part and the information acquisition assembly penetrate the first avoiding slot;

[0016] Along the third direction, the distance between the side of the pressing strip body close to the information acquisition assembly and the side of the battery close to the information acquisition assembly is L mm, and the sum of the thickness of the penetrating part and the information acquisition assembly is H mm, and L>H is satisfied.

[0017] Optionally, the battery pack further comprises:

[0018] An adhesive layer is partially arranged between the protrusion and the battery; the body part is provided with a through hole penetrating along the third direction; the adhesive layer penetrates the through hole; and the protrusion is connected to the battery through the adhesive layer.

[0019] Optionally, the battery pack further comprises:

[0020] A plurality of limiting strips are arranged at intervals along the first direction; the limiting strips are connected to the side of the pressing strip body close to the cover; the limiting strips extend along the second direction; the limiting strips intersect with the pressing strip body; and one limiting strip is connected to at least one pressing strip body.

[0021] Optionally, the pressing strip further comprises a strip-shaped protrusion connected to the side of the pressing strip body away from the protrusion; and the strip-shaped protrusion extends along the first direction.

[0022] Optionally, the number of the strip-shaped protrusions is a plurality; the plurality of the strip-shaped protrusions are arranged at intervals along the first direction; two adjacent strip-shaped protrusions and the pressing strip body enclose a second avoiding slot; and one limiting strip penetrates one second avoiding slot.

[0023] Optionally, along the first direction, the box body comprises two oppositely arranged side walls; the side of each side wall close to the accommodating cavity is provided with an insertion hole; and the two ends of the pressing strip body are respectively inserted into one insertion hole.

[0024] In a second aspect, the application further provides a battery pack for a power-using device.

[0025] The battery pack provided by the application comprises a box body, a cover body, a battery, an electrical isolation plate, an information acquisition assembly and a pressing strip. A receiving cavity is formed in the interior of the box body, and a plurality of batteries are placed in the receiving cavity, so that the batteries are arranged along a first direction. The information acquisition assembly is placed in the receiving cavity, so that the information acquisition assembly is connected to a side of the battery away from the bottom of the receiving cavity, and the information acquisition assembly extends along a second direction. The electrical isolation plate is placed in the receiving cavity, and the electrical isolation plate is connected to a side of the information acquisition assembly close to the cover body. The battery, the information acquisition assembly and the cover body are sequentially arranged along a third direction. The pressing strip comprises a pressing strip body and a plurality of protrusions. Each protrusion is connected to a side of the pressing strip body close to the battery. The protrusions are arranged at intervals along the first direction on the pressing strip body. After each protrusion is connected to the battery, a first avoiding groove is formed between the side of the pressing strip body close to the battery and adjacent two protrusions. Part of the electrical isolation plate and the information acquisition assembly are arranged in the first avoiding groove. The existence of the first avoiding groove provides sufficient space for the electrical isolation plate and the information acquisition assembly, so that the electrical isolation plate does not press the information acquisition assembly after the pressing strip body abuts against the electrical isolation plate, which helps to improve the stability of signal acquisition, thereby avoiding damage to the information acquisition assembly, and can improve the use performance and service life of the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the specific embodiments or related technologies of the application, the drawings needed in the specific embodiments or related technology description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0027] Figure 1 FIG. 1 is a structural schematic diagram of a battery pack according to an embodiment of the application;

[0028] Figure 2 FIG. 2 is a structural schematic diagram of a battery pack after hiding the cover body according to an embodiment of the application;

[0029] Figure 3 FIG. 3 is an enlarged schematic diagram of position A in FIG. 1; Figure 2

[0030] Figure 4 FIG. 4 is a structural schematic diagram of a box body of a battery pack according to an embodiment of the application;

[0031] Figure 5 FIG. 5 is a connection schematic diagram of a pressing strip and a battery of a battery pack according to an embodiment of the application;

[0032] Figure 6 FIG. 6 is a structural schematic diagram of a battery pack according to another embodiment of the application.​Figure 5 Enlarged view at B;

[0033] Figure 7 For Figure 5 Enlarged view at C;

[0034] Figure 8 For the structure diagram of the slot and the first avoiding slot of a battery pack of the embodiment of the present application;

[0035] Figure 9 For Figure 8 Enlarged view at D;

[0036] Figure 10 For the structure diagram of the part after the cover body and the pressing strip of a battery pack of the embodiment of the present application;

[0037] Figure 11 For the structure diagram of the pressing strip of a battery pack of the embodiment of the present application.

[0038] Explanation of reference signs:

[0039] 1, box; 10, accommodating cavity; 11, plug-in hole; 12, side wall; 2, cover body; 3, battery; 30, battery pack; 4, information acquisition assembly; 5, electrical isolation plate; 51, body part; 510, through hole; 52, penetrating part; 6, pressing strip; 61, pressing strip body; 62, protrusion; 620, first avoiding slot; 63, strip-shaped protrusion; 630, second avoiding slot; 7, limiting strip; 8, adhesive layer. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0041] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, at least one of which can be one, two or more, unless otherwise explicitly specified. In the description of the present application, "vertical" means completely vertical at 90° or almost completely vertical, for example, within an angle range of 80°-100°, it is considered as vertical, and similarly, "parallel" means completely parallel or almost completely parallel, for example, within a range of 10° of complete parallel, it is considered as parallel.

[0042] The embodiments of the present application will be described below in conjunction with Figures 1 to 11 .

[0043] According to the embodiments of the present application, in one aspect, a battery pack is provided. As shown in Figure 1 , it has a first direction X, a second direction Y and a third direction Z. Wherein the first direction X, the second direction Y and the third direction Z are perpendicular to each other to form a space rectangular coordinate system.

[0044] As shown in Figures 1 to 3 , the battery pack includes a box body 1, a cover body 2, a battery 3, an electrical isolation plate 5, an information acquisition assembly 4 and a pressing strip 6.

[0045] As shown in Figure 3 , a containing cavity 10 is formed in the inside of the box body 1, and the containing cavity 10 is provided with an opening in the third direction Z. The battery 3 is provided with a plurality of batteries 3, and the plurality of batteries 3 are placed in the containing cavity 10, so that each battery 3 is arranged along the first direction X.

[0046] The information acquisition assembly 4 is placed in the containing cavity 10, so that the information acquisition assembly 4 is connected to the side of the battery 3 away from the cavity bottom of the containing cavity 10, and the information acquisition assembly 4 extends along the second direction Y.

[0047] The electrical isolation plate 5 is placed in the accommodating cavity 10, and the electrical isolation plate 5 is connected to the information acquisition assembly 4 close to the cover 2. At this time, the information acquisition assembly 4 is located between the electrical isolation plate 5 and the battery 3, and the electrical isolation plate 5 plays a role of isolation. The battery 3, the information acquisition assembly 4 and the cover 2 are sequentially arranged along the third direction. The information acquisition assembly 4 is connected to the busbar on the battery 3 through the collection terminal such as a nickel sheet, for collecting various information data and leading out through the information acquisition assembly 4.

[0048] Then the pressing strip 6 is arranged in the accommodating cavity 10, so that the pressing strip 6 is arranged in the first direction X. After the pressing strip 6 is arranged in the accommodating cavity 10, the pressing strip 6 is at least partially located on the side of the electrical isolation plate 5 away from the cavity bottom of the accommodating cavity 10 along the third direction.

[0049] The pressing strip 6 includes a pressing strip body 61 and a plurality of protrusions 62. Each protrusion 62 is connected to the side of the pressing strip body close to the battery 3. Each protrusion 62 is arranged on the pressing strip body 61 in the first direction. After each protrusion 62 is connected to the battery 3, a first avoiding groove 620 is formed between the side of the pressing strip body 61 close to the battery 3 and the adjacent two protrusions 62. Part of the electrical isolation plate 5 and the information acquisition assembly 4 are arranged in the first avoiding groove.

[0050] The cover 2 is connected to the box body 1, so that the cover 2 is arranged at the opening to close the accommodating cavity 10, so as to close the battery 3 in the box body 1. At this time, the battery 3, the pressing strip 6 and the cover 2 are sequentially arranged along the third direction Z, the pressing strip 6 helps to improve the structural stability of the battery pack, the information acquisition assembly 4 is connected to the side of the battery 3 close to the cover 2, the electrical isolation plate 5 is connected to the side of the information acquisition assembly 4 close to the cover 2, and at least part of the pressing strip body 61 of the pressing strip 6 is located on the side of the electrical isolation plate close to the cover 2.

[0051] Because of the existence of the first avoiding groove 620, enough space is left for the electrical isolation plate 5 and the information acquisition assembly 4, so that a gap is left between the pressing strip body 61 and the electrical isolation plate 5. After the pressing strip body 61 abuts against the electrical isolation plate 5, the electrical isolation plate 5 does not press the information acquisition assembly 4, so as to avoid damaging the information acquisition assembly 4, help the stability of signal acquisition, and improve the use performance and service life of the battery pack.

[0052] In an embodiment, the information acquisition assembly 4 includes a flexible circuit board.

[0053] In a further embodiment, as Figures 5 to 8As shown, each two adjacent protrusions 62 form a first avoiding slot 620, so that there are multiple first avoiding slots 620, and the multiple first avoiding slots 620 are arranged at intervals along the first direction X. The information acquisition assembly 4 is arranged at intervals along the first direction X, and each information acquisition assembly 4 corresponds to one first avoiding slot. The multiple portions of the electrical isolation plate 5 correspond to one side of the information acquisition assembly 4 away from the battery 3 and pass through one first avoiding slot 620.

[0054] In this way, each information acquisition assembly 4 can be connected to the busbar of one battery 3 through the nickel sheet or other acquisition terminals, and each information acquisition assembly 4 can be used to collect information data of each battery 3 and export. The multiple portions of the electrical isolation plate 5 can isolate each information acquisition assembly 4.

[0055] In an optional embodiment, as shown in Figure 2 and Figure 5 As shown, along the first direction X, the multiple batteries 3 are arranged to form a battery group 30. The battery group 30 is arranged at intervals along the second direction Y. Along the second direction Y, the multiple pressing strips 6 are arranged at intervals. One pressing strip 6 corresponds to one battery group 30.

[0056] For the pressing strip 6 and the battery group 30 connected to each other, the pressing strip body 61 of the pressing strip 6 is arranged with multiple protrusions 62, and each protrusion 62 is connected to one battery 3 of the battery group 30. In this way, each pressing strip 6 is connected to one battery group 30, that is, the pressing strip body 61 of each pressing strip 6 is connected to the battery 3 of the battery group 30 through the protrusion 62.

[0057] In this way, more battery groups 30 can be arranged, and the pressing strip 6 is arranged for each battery group 30.

[0058] As an optional embodiment, as shown in Figure 6 The electrical isolation plate 5 includes a body portion 51 and a penetrating portion 52 connected to the body portion 51. The body portion 51 is provided with a through hole 510 for allowing glue to leak. The information acquisition assembly 4 and the penetrating portion 52 of the electrical isolation plate 5 are arranged in sequence along the third direction Z, and the penetrating portion 52 penetrates into the first avoiding slot 620 and is located between the information acquisition assembly 4 and the pressing strip body 61. The information acquisition assembly 4 also penetrates into the first avoiding slot 620 and is located between the electrical isolation plate 5 and the battery 3.

[0059] Along the third direction Z, the distance between the side of the pressing strip body 61 close to the information acquisition assembly 4 and the side of the battery 3 close to the information acquisition assembly 4 is L mm. The sum of the thicknesses of the penetrating portion 52 and the information acquisition assembly 4 is H mm. For L and H, L>H.

[0060] This configuration ensures that when the insertion part 52 and the information acquisition component 4 pass through the first clearance groove 620 between two adjacent protrusions 62, the value of L is greater than H, guaranteeing that the first clearance groove 620 has sufficient accommodating space, thus leaving a gap between the pressure strip 6 and the insertion part 52 of the electrical isolation plate 5. This prevents the electrical isolation plate 5 from squeezing the information acquisition component 4 after the pressure strip 6 abuts against it, thus contributing to the stability of signal acquisition.

[0061] In some embodiments, such as Figures 8 to 11 For the connection between the protrusion 62 and the battery 3, structural adhesive is applied to the battery 3 to form an adhesive layer 8, and the side of the protrusion away from the pressure strip is bonded to the adhesive layer 8. Thus, the side of the protrusion 62 away from the pressure strip 6 is connected to the battery 3 through the adhesive layer 8. At this time, the adhesive layer 87 is located between the protrusion 62 and the battery 3.

[0062] A through hole 510 is formed on the body portion 51 along a third direction Z, such that the through hole 510 penetrates the body portion 51. Adhesive is poured into the battery 3 through the through hole 510 until the structural adhesive is located between the bump 62 and the battery. After the structural adhesive solidifies, an adhesive layer 8 is formed, wherein the adhesive layer 8 passes through the through hole 510. A portion of the adhesive layer 8 is located between the bump 62 and the battery 3, and is connected to both the bump 62 and the battery 3. In one embodiment, the adhesive layer 8 includes at least one of structural adhesive and foam adhesive.

[0063] As an optional embodiment, such as Figure 6 As shown, the battery pack also includes a plurality of limiting strips 7, which are arranged at intervals along the second direction Y. Each limiting strip 7 is connected to the side of the pressure strip body 61 facing the cover 2. Each limiting strip 7 extends along the second direction Y, so that the limiting strip 7 is connected to and intersects with the pressure strip body 61 of at least one pressure strip 6.

[0064] Each limiting strip 7 can be connected to and intersect with the main body 61 of each pressure strip 6. After injecting glue into the receiving cavity, the pressure strip 6 and the limiting strip 7 are molded into one piece by the glue. In this way, the limiting strip 7 reinforces the pressure strip 6, and the intersecting limiting strip 7 and pressure strip 6 increase the overall stability and modal performance of the battery pack.

[0065] In a further embodiment, such as Figures 5 to 11 As shown, the pressure strip 6 also includes a strip-shaped protrusion 63, wherein the strip-shaped protrusion 63 is connected to the side of the pressure strip body 61 away from the protrusion 62, and the strip-shaped protrusion 63 extends along the extension direction of the pressure strip 6, that is, the strip-shaped protrusion 63 extends along the first direction. After the cover 2 closes the receiving cavity 10, the strip-shaped protrusion 63 is located between the pressure strip body 61 and the cover 2.

[0066] In some embodiments, the length of the strip protrusion 63 in the third direction Z is the same as the length of the pressure strip 6 in the third direction Z. After the pressure strip 6 and the limiting strip 7 are arranged crosswise, the side of the limiting strip 7 away from the pressure strip 6 is flush with the side of the strip protrusion 63 away from the pressure strip 6, so that the limiting strip 7 and the pressure strip 6 are subjected to force at the same time, and the overall force is more stable.

[0067] Furthermore, on the main body 61 of each pressure strip 6, multiple strip-shaped protrusions 63 are provided, spaced apart along the first direction X, such that the main body 61 of the pressure strip and two adjacent strip-shaped protrusions 63 form a second clearance groove 630. When placing the limiting strip 7, each limiting strip 7 is correspondingly inserted into the second clearance groove 630 between every two adjacent strip-shaped protrusions 63, so that the limiting strip 7 and the strip-shaped protrusions 63 are arranged in an intersecting manner.

[0068] This design avoids interference between the strip-shaped protrusion 63 and the limiting strip 7 at their intersection, and also prevents the strip-shaped protrusion 63 and the limiting strip 7 from being too thick at their intersection. The first clearance groove 620 ensures that the side of the limiting strip 7 away from the pressure strip 6 is flush with the side of the strip-shaped protrusion 63 away from the pressure strip 6.

[0069] like Figure 4 As shown, along the first direction X, the housing 1 includes two opposing side walls 12. As an optional implementation, such as... Figure 3 As shown, insertion holes 11 are provided on the side of each of the two side walls 12 near the receiving cavity 10. When the pressure strip 6 is connected to the battery 3, the first end of the pressure strip 6 is inserted into the insertion hole 11 on the first side wall 12, and the second end of the pressure strip 6 is inserted into the insertion hole 11 on the second side wall 12, thereby fixing the pressure strip 6, increasing the reinforcement of the battery, and increasing the overall stability and modal performance.

[0070] According to an embodiment of this application, in another aspect, an electrical device is provided, including any of the battery packs described above. The technical effects of this electrical device are the same as those of the battery pack, and therefore will not be described in detail.

[0071] Of course, the electrical device referred to in this application may include, but is not limited to, backup power supplies, electrodes, electric vehicles, electric bicycles, electric motorcycles, large storage batteries, etc. 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 of other embodiments.

[0072] The above has carried out the detailed introduction to the battery pack and the electric device provided by the embodiment of the application, and the principle and implementation mode of the application are described by applying specific examples; the above embodiment description is only used to help understand the technical solutions and core ideas of the application; those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A battery pack having a first direction (X), a second direction (Y), and a third direction (Z) that intersect two by two, characterized in that, The battery pack comprises: a box body (1) having a containing cavity (10); a cover body (2) connected to the box body (1) and covering the containing cavity (10); a plurality of batteries (3) arranged in the containing cavity (10) along a first direction (X); an information acquisition assembly (4) extending along a second direction (Y) and connected to one side of the batteries (3) close to the cover body (2); an electrical isolation plate (5) connected to one side of the information acquisition assembly (4) close to the cover body (2); a pressing strip (6) arranged along a third direction (Z), at least part of the pressing strip (6) is located on one side of the electrical isolation plate (5) close to the cover body (2), the pressing strip (6) comprises a pressing strip body (61) and a plurality of protrusions (62), the protrusions (62) are connected to one side of the pressing strip body (61) close to the batteries (3), and the protrusions (62) are connected to the batteries (3); a plurality of the protrusions (62) are arranged along the first direction (X), and the protrusions (62) and the pressing strip body (61) between adjacent two of the protrusions (62) form a first avoiding slot (620), and the information acquisition assembly (4) and part of the electrical isolation plate (5) pass through the first avoiding slot (620).

2. The battery pack according to claim 1, wherein: a plurality of the first avoiding slots (620) are arranged along the first direction (X); a plurality of the information acquisition assemblies (4) are arranged along the first direction (X), and each of the information acquisition assemblies (4) passes through one of the first avoiding slots (620).

3. The battery pack of claim 1, wherein, a plurality of the batteries (3) form a battery group (30) arranged along the first direction (X), and a plurality of the battery groups (30) are arranged along the second direction (Y); a plurality of the pressing strips (6) are arranged along the second direction (Y), and each of the pressing strips (6) is arranged in one of the battery groups (30) along the third direction (Z), and each of the pressing strip bodies (61) is connected to the batteries (3) of the battery group (30) through the protrusions (62).

4. The battery pack of claim 1, wherein, the electrical isolation plate (5) comprises a body part (51) and a passing part (52) connected to each other, the passing part (52) is located between the information acquisition assembly (4) and the pressing strip body (61) along the third direction (Z), and the passing part (52) passes through the first avoiding slot (620) with the information acquisition assembly (4); the distance between one side of the pressing strip body (61) close to the information acquisition assembly (4) and one side of the battery (3) close to the information acquisition assembly (4) along the third direction (Z) is L mm, and the sum of the thicknesses of the passing part (52) and the information acquisition assembly (4) is H mm, and L>H is satisfied.

5. The battery pack of claim 4, wherein, The battery pack further comprises: An adhesive layer (8) is arranged between the protrusion (62) and the battery (3), the body part (51) is provided with a through hole (510) along the third direction (Z), the adhesive layer (8) is arranged in the through hole (510), and the protrusion (62) is connected to the battery (3) through the adhesive layer (8).

6. The battery pack of claim 3, wherein, The battery pack further comprises: A plurality of limiting strips (7) are arranged at intervals along the first direction (X), the limiting strips (7) are connected to one side of the pressing strip body (61) facing the cover (2), the limiting strips (7) extend along the second direction (Y), the limiting strips (7) intersect with the pressing strip body (61), and one limiting strip (7) is connected to at least one pressing strip body (61).

7. The battery pack of claim 6, wherein, The pressing strip (6) further comprises a strip-shaped protrusion (63), the strip-shaped protrusion (63) is connected to one side of the pressing strip body (61) away from the protrusion (62), and the strip-shaped protrusion (63) extends along the first direction (X).

8. The battery pack of claim 7, wherein, The number of the strip-shaped protrusions (63) is plural, the strip-shaped protrusions (63) are arranged at intervals along the first direction (X), and two adjacent strip-shaped protrusions (63) and the pressing strip body (61) form a second avoiding groove (630), and one limiting strip (7) is arranged in one second avoiding groove (630).

9. The battery pack of claim 1, wherein, Along the first direction (X), the box (1) comprises two oppositely arranged side walls (12), and the two side walls (12) are provided with plug-in holes (11) near one side of the accommodating cavity (10), and two ends of the pressing strip body (61) are respectively arranged in one plug-in hole (11).

10. An electrical device, characterized by The battery pack comprises any one of claims 1-9. The battery pack comprises any one of claims 1-9.

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