Battery pack and electric equipment

Abstract

The utility model discloses a battery pack and electric equipment, and belongs to the technical field of batteries, the battery pack comprises a plurality of integrated pipes, each integrated pipe comprises a first pipe body and a second pipe body sleeving the first pipe body, the first pipe body is provided with a containing cavity, and a liquid cooling channel separated from the containing cavity is defined between the first pipe body and the second pipe body; the plurality of batteries are arranged in the accommodating cavity and are connected with the first pipe body; the first collecting pipe is provided with a liquid inlet channel and a liquid outlet channel which are separated from each other; the second collecting pipe is provided with a collecting cavity; the integrated pipes are connected with the first collecting pipe and the second collecting pipe, the liquid cooling channel is provided with a first port and a second port, the first ports of the multiple integrated pipes are communicated with the collecting cavity, part of the second ports of the multiple integrated pipes are communicated with the liquid inlet channel, and the other part of the second ports are communicated with the liquid outlet channel. The battery arrangement and the cooling structure are simplified, and the heat dissipation effect of the battery is improved.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and specifically relates to a battery pack and electrical equipment. Background Art

[0002] At present, during the charging and discharging process of the battery pack, the battery will generate a large amount of heat, which will cause the battery temperature to rise. If the heat accumulated in the battery pack cannot be discharged in time, it will affect the battery's performance, reduce the battery's cycle life, and even cause safety accidents. Utility Model Content

[0003] Purpose of the utility model: An embodiment of the present application provides a battery pack to solve the above-mentioned technical problems; another purpose of the present application is to provide an electrical device using the above-mentioned battery pack.

[0004] Technical solution: A battery pack according to an embodiment of the present application includes:

[0005] A plurality of integrated tubes, each comprising a first tube body and a second tube body sleeved on the first tube body, the first tube body having a receiving cavity, and a liquid cooling channel separated from the receiving cavity being formed between the first tube body and the second tube body;

[0006] a plurality of batteries, the plurality of batteries being disposed in the accommodating cavity, and the batteries being connected to the first tube body;

[0007] a first manifold having a liquid inlet channel and a liquid outlet channel separated from each other;

[0008] a second manifold having a manifold cavity;

[0009] In which, the integrated pipe connects the first collecting pipe and the second collecting pipe, the liquid cooling channel has a first port and a second port, the first ports of multiple integrated pipes are connected to the collecting cavity, some of the second ports of multiple integrated pipes are connected to the liquid inlet channel, and another part of the second ports are connected to the liquid outlet channel; the first collecting pipe is set at one end of the integrated pipe, and the second collecting pipe is set at the other end.

[0010] In some embodiments, a plurality of the integrated pipes are arranged along a first direction, the first manifold includes a third pipe body and a separator, the third pipe body has an inlet and outlet liquid cavity, the separator is provided in the inlet and outlet liquid cavity and connected to the third pipe body to separate the inlet and outlet liquid cavity and form the liquid inlet channel and the liquid outlet channel;

[0011] In the first direction, one of the adjacent second ports is connected to the liquid inlet channel, and the other is connected to the liquid outlet channel.

[0012] In some embodiments, the second tube body is connected to the first manifold, and the connection between the two is the second port; one end of the first tube body extends from the second tube body and passes through the first manifold;

[0013] The partition extends in a wave shape in the first direction, and the second ports adjacent to each other in the first direction are respectively located on two opposite sides of the partition in the first direction.

[0014] In some embodiments, both ends of the first tube extend from the second tube, and the first tube has a third port and a fourth port;

[0015] The first manifold is provided with a first opening, and the first opening is connected to the third port;

[0016] The second manifold is provided with a second opening, and the second opening is communicated with the fourth port.

[0017] In some embodiments, the plurality of integrated tubes are arranged along a first direction, the first port, the second port, the third port, and the fourth port are arranged in a second direction, and the first direction and the second direction intersect.

[0018] In some embodiments, the plurality of integrated tubes are arranged along a first direction, the plurality of batteries in each accommodating cavity are arranged along a second direction, and the liquid cooling channel extends along the second direction, and the first direction and the second direction intersect.

[0019] In some embodiments, a plurality of the integrated tubes are arranged along a first direction;

[0020] The battery pack further includes:

[0021] a base, wherein the base is provided with a plurality of positioning grooves, the plurality of positioning grooves are arranged along the first direction, and the second tube portion is embedded in the positioning grooves;

[0022] The first header and the second header are connected to the base respectively.

[0023] In some embodiments, the base has a first side surface and a second side surface opposite to each other in the second direction, the first header is connected to the first side surface, and the second header is connected to the second side surface;

[0024] The battery pack further includes:

[0025] A frame surrounds the base, the first collector and the second collector, is connected to the base, and clamps the first collector relative to the first side surface, and clamps the second collector relative to the second side surface.

[0026] In some embodiments, the battery pack further includes a heat-conducting layer, which is disposed in the accommodating cavity and is disposed between the battery and the first tube body and connects the battery and the first tube body.

[0027] Correspondingly, an electrical device described in an embodiment of the present application includes the above-mentioned battery pack.

[0028] Beneficial Effects: The battery pack of the present invention includes multiple integrated tubes, multiple batteries, a first current collector, and a second current collector. The integrated tube includes a first tube body and a second tube body sleeved therein. The first tube body has a receiving cavity, and a liquid cooling channel separated from the receiving cavity is defined between the first and second tube bodies. Multiple batteries are disposed within the receiving cavity and connected to the first tube body. The first current collector has a liquid inlet channel and a liquid outlet channel separated from each other. The second current collector has a collecting cavity. The integrated tube connects the first and second current collectors. The liquid cooling channel has a first port and a second port. The first ports of the multiple integrated tubes communicate with the collecting cavity, some of the second ports of the multiple integrated tubes communicate with the liquid inlet channel, and other portions of the second ports communicate with the liquid outlet channel. The first current collector is disposed at one end of the integrated tube, and the second current collector is disposed at the other end. By disposing the batteries within the receiving cavity and directly connecting them to the first tube body, the batteries can be cooled by heat exchange between the first tube body and the refrigerant in the liquid cooling channel, which helps simplify the battery layout and cooling structure and improve the battery's heat dissipation. In addition, by integrating the liquid inlet channel and the liquid outlet channel in the first manifold and cooperating with the second manifold, the refrigerant can complete the heat exchange cycle through the liquid inlet channel, a part of the liquid cooling channel, the manifold, another part of the liquid cooling channel and the liquid outlet channel, which is conducive to simplifying the liquid cooling flow path structure, improving space utilization and enabling the refrigerant to fully contact and exchange heat with the batteries in each accommodating cavity, thereby improving the heat dissipation effect of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 This is a schematic structural diagram of a battery pack according to an embodiment of the present application;

[0031] Figure 2 This is a schematic diagram of the exploded structure of the battery pack according to an embodiment of the present application;

[0032] Figure 3 This is a schematic diagram of the structure of the battery pack in the top view of an embodiment of the present application;

[0033] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure along line AA;

[0034] Figure 5 yes Figure 4 A partial enlarged view of part C in the middle;

[0035] Figure 6 yes Figure 3 Schematic diagram of the cross-sectional structure along line BB;

[0036] Figure 7 yes Figure 6 A partial enlarged view of part D in the middle;

[0037] Figure 8 This is a schematic structural diagram of an embodiment of the present application when looking directly at the first opening in the second direction;

[0038] Figure 9 yes Figure 8 Schematic diagram of the cross-sectional structure along line EE;

[0039] Figure markings: 1. integrated tube; 10. first tube body; 100. accommodating cavity; 101. third port; 102. fourth port; 11. second tube body; 110. first port; 111. second port; 12. liquid cooling channel; 2. battery; 3. first collecting pipe; 30. liquid inlet and outlet cavity; 300. liquid inlet channel; 301. liquid outlet channel; 31. third tube body; 32. partition; 33. first opening; 34. liquid inlet; 35. liquid outlet; 4. second collecting pipe; 40. collecting cavity; 41. second opening; 5. base; 50. positioning groove; 51. first side; 52. second side; 6. frame; 7. heat conducting layer; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0041] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, 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" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined.

[0042] Reference Figures 1 to 9 A battery pack includes multiple integrated tubes 1, multiple batteries 2, a first current collector 3 and a second current collector 4.

[0043] The integrated tube 1 comprises a first tube body 10 and a second tube body 11 sleeved thereon. The first tube body 10 has a receiving cavity 100. A liquid cooling channel 12 is defined between the first and second tube bodies 10, separated from the receiving cavity 100. Multiple batteries 2 are disposed within the receiving cavity 100 and connected to the first tube body 10. The first manifold 3 has a separate liquid inlet channel 300 and a liquid outlet channel 301. The second manifold 4 has a manifold cavity 40.

[0044] The manifold 1 connects the first manifold 3 and the second manifold 4, with the first manifold 3 located at one end and the second manifold 4 located at the other end. The liquid cooling channel 12 has a first port 110 and a second port 111. The first ports 110 of the plurality of manifolds 1 communicate with the manifold chamber 40, while some of the second ports 111 of the plurality of manifolds 1 communicate with the liquid inlet channel 300, and others communicate with the liquid outlet channel 301.

[0045] The integrated tube 1 integrates the arrangement space of the battery 2 and the flow path of liquid cooling and heat exchange through the first tube body 10 and the second tube body 11, and arranges the battery 2 in the accommodating cavity 100 and directly connects it to the first tube body 10, so that the battery 2 can be cooled by heat exchange with the refrigerant in the liquid cooling channel 12 through the first tube body 10, which is conducive to simplifying the arrangement and cooling structure of the battery 2 and improving the heat dissipation effect of the battery 2.

[0046] In addition, by integrating the liquid inlet channel 300 and the liquid outlet channel 301 in the first manifold 3 and cooperating with the second manifold 4, the refrigerant can complete the heat exchange cycle through the liquid inlet channel 300, a part of the liquid cooling channel 12, the manifold 40, another part of the liquid cooling channel 12 and the liquid outlet channel 301, which is conducive to simplifying the liquid cooling flow path structure. Compared with the traditional liquid cooling plate, it reduces the use of pipelines, improves the space utilization of the battery pack, and enables the refrigerant to fully contact and exchange heat with the batteries 2 in each accommodating cavity 100, thereby improving the heat dissipation effect of the battery 2.

[0047] Specifically, in some embodiments, referring to Figures 1 to 5 The plurality of integrated pipes 1 are arranged along the first direction X, and the first pipe body 10 and the second pipe body 11 both extend in the second direction Y. The first header 3 and the second header 4 are distributed at both ends of the integrated pipe 1 in the second direction Y.

[0048] The first manifold 3 includes a third tube body 31 and a separator 32 . The third tube body 31 has an inlet and outlet liquid cavity 30 . The separator 32 is disposed in the inlet and outlet liquid cavity 30 and connected to the third tube body 31 to separate the inlet and outlet liquid cavity 30 and form a liquid inlet channel 300 and a liquid outlet channel 301 .

[0049] The first manifold 3 has a liquid inlet 34 at one end in the first direction X, connected to the liquid inlet channel 300. The first manifold 3 has a liquid outlet 35 at the other end in the first direction X, connected to the liquid outlet channel 301. In the first direction X, the partition 32 separates at least some of the adjacent second ports 111. Specifically, one of the adjacent second ports 111 is connected to the liquid inlet channel 300, and the other is connected to the liquid outlet channel 301.

[0050] When the refrigerant is input into the liquid inlet channel 300 from the liquid inlet 34, the flow direction of the refrigerant in one part of the liquid cooling channel 12 is opposite to the flow direction of the refrigerant in another part of the liquid cooling channel 12. While ensuring that the refrigerant can smoothly exchange heat with the batteries 2 in each accommodating cavity 100, it is beneficial to optimize the heat exchange uniformity of the entire battery pack.

[0051] It should be noted that, in the embodiment of the present application, a first direction X, a second direction Y and a third direction Z intersecting with each other are introduced. Figure 3 As shown, the size of the battery pack in the first direction X is smaller than the size of the battery pack in the second direction Y. Therefore, the first direction X is parallel to the width direction of the entire battery pack in this embodiment, the second direction Y is parallel to the length direction of the entire battery pack in this embodiment and the axial direction of the integrated tube 1, and the third direction Z is parallel to the thickness direction of the entire battery pack in this embodiment.

[0052] Of course, in other embodiments, if the number of integrated tubes 1 is further increased, the size of the battery pack in the first direction X will increase and exceed the size of the battery pack in the second direction Y. In this case, the first direction X is parallel to the length direction of the entire battery pack.

[0053] In some embodiments, reference Figure 2 、 Figure 4 and Figure 5 The second tube body 11 is connected to the first manifold 3 , and the connection point between the two is the second port 111 . One end of the first tube body 10 extends from the second tube body 11 and passes through the first manifold 3 .

[0054] The partition 32 extends in a wave shape in the first direction X, and adjacent second ports 111 in the first direction X are respectively located on opposite sides of the partition 32 in the first direction X, so that one of the adjacent second ports 111 is connected to the liquid inlet channel 300 and the other is connected to the liquid outlet channel 301.

[0055] On the one hand, the wave-shaped extending partition 32 adapts to the horizontal distribution of multiple integrated pipes 1 in the first direction X, that is, adjacent integrated pipes 1 do not need to adjust the height difference in the third direction Z, which simplifies the installation of the integrated pipes 1 and the first collecting pipe 3, and is beneficial to the convenience and accuracy of the arrangement and installation of multiple integrated pipes 1.

[0056] On the other hand, the wavy-shaped integral partition 32 can evenly separate adjacent second ports 111, reducing the need for additional support and partition structures and simplifying the partition structure. At the same time, the wavy partition 32 structure is conducive to guiding the flow of refrigerant and reducing resistance to the refrigerant.

[0057] Furthermore, in some embodiments, reference Figure 1 and Figure 6 The first manifold 3 is provided with a first opening 33 , which is communicated with the accommodating chamber 100 . The second manifold 4 is provided with a second opening 41 , which is communicated with the accommodating chamber 100 .

[0058] The first opening 33 is provided on the side of the first manifold 3 facing away from the second manifold 4, and the second opening 41 is provided on the side of the second manifold 4 facing away from the first manifold 3. Multiple first openings 33 and second openings 41 are provided for each of the multiple manifolds 1, such that each first opening 33 communicates with a second opening 41 and a receiving cavity 100 in the second direction Y. Both the first opening 33 and the second opening 41 can be used to route wires from the batteries 2 within the receiving cavity 100, such as circuits for electrical connection and monitoring of the battery 2 status.

[0059] Specifically, in some embodiments, referring to Figure 2 、 Figure 5 、 Figure 6 and Figure 9 The first port 110 and the second port 111 are arranged in the second direction Y. The first tube body 10 has a third port 101 and a fourth port 102 arranged opposite to each other in the second direction Y. The third port 101 protrudes from the first port 110 in the second direction Y and communicates with the first opening 33. The fourth port 102 protrudes from the second port 111 in the second direction Y and communicates with the second opening 41.

[0060] That is, the axial length of the first tube body 10 in the second direction Y is designed to be greater than the axial length of the second tube body 11 in the second direction Y. In this case, the first tube body 10 can penetrate and connect the first manifold 3 and the second manifold 4, thereby separating the third port 101 from the inlet and outlet liquid cavity 30, and separating the fourth port 102 from the inlet and outlet liquid cavity 30, thereby improving the watertight sealing performance of the accommodating cavity 100. At the same time, the third port 101 is flush with the outer wall of the first manifold 3, the fourth port 102 is flush with the outer wall of the second manifold 4, the first port 110 is flush with the inner wall of the first manifold 3, and the second port 111 is flush with the inner wall of the second manifold 4. This facilitates the rapid positioning and connection of the first tube body 10, the second tube body 11, the first manifold 3, and the second manifold 4, thereby improving the convenience of battery pack assembly.

[0061] In some embodiments, reference Figure 2 、 Figure 6 and Figure 7 The battery 2 in the embodiment of the present application takes a cylindrical battery 2 as an example, and the corresponding cross-sections of the first tube body 10 and the second tube body 11 are both circular.

[0062] The multiple batteries 2 in each accommodating cavity 100 are arranged along the second direction Y, and the corresponding liquid cooling channels 12 also extend along the second direction Y. This facilitates each battery 2 to fully contact the inner wall of the first tube 10 circumferentially surrounding the battery 2 , thereby improving the heat dissipation effect of the battery 2 .

[0063] In order to further improve the heat dissipation effect of the battery 2, in some embodiments, referring to Figure 7 The battery pack further includes a heat-conducting layer 7, which is disposed within the accommodating cavity 100 and between and connecting the battery 2 and the first tube 10. The heat-conducting layer 7 can be made of an insulating thermally conductive adhesive. This can further improve the fixation of the battery 2 and increase the heat dissipation area in contact with the battery 2, thereby improving the heat dissipation effect of the battery 2.

[0064] In some embodiments, reference Figure 1 and Figure 2The battery pack also includes a base 5, which has a plurality of positioning grooves 50. The plurality of positioning grooves 50 are arranged along the first direction X. The second tube body 11 is partially embedded in the positioning groove 50, and the first collector 3 and the second collector 4 are respectively connected to the base 5.

[0065] Specifically, the positioning groove 50 only needs to be compatible with the second tube body 11. For the second tube body 11 of this embodiment, which has a circular cross-section, the positioning groove 50 ensures that the second tube body 11 fits snugly. The base 5 supports the multiple manifolds 1 and provides a mounting base for the first manifold 3 and the second manifold 4. Furthermore, the positioning groove 50 allows for quick positioning of the manifold 1, improving the portability and stability of its installation.

[0066] Regarding the arrangement positions of the first header 3 and the second header 4, refer to Figure 1 、 Figure 3 and Figure 6 The base 5 has a first side surface 51 and a second side surface 52 that are oppositely disposed in the second direction Y. The first manifold 3 is connected to the first side surface 51, and the second manifold 4 is connected to the second side surface 52. That is, the first side surface 51 is the mounting base for the first manifold 3, and the second side surface 52 is the mounting base for the second manifold 4.

[0067] In addition, the battery pack includes a frame 6, which surrounds the base 5, the first current collector 3, and the second current collector 4. The frame 6 is connected to the base 5, and the frame 6 clamps the first current collector 3 relative to the first side 51, and the frame 6 clamps the second current collector 4 relative to the second side 52. The frame 6 further constrains the first current collector 3 and the second current collector 4, thereby improving the structural strength of the entire battery 2.

[0068] Finally, through the symmetrical distribution of the integrated tube 1 and the symmetrical arrangement of the first collector 3 and the second collector 4, the load of the entire battery pack is evenly distributed on the horizontal plane defined by the first direction X and the second direction Y, which is conducive to maximizing the fatigue life of each structure.

[0069] Accordingly, embodiments of the present application provide an electrical device comprising the aforementioned battery pack. The electrical device may be an electronic device, a power storage device, or a powered vehicle. It is understood that the electrical device may possess all the technical features and corresponding beneficial effects of the aforementioned battery pack, and further details are omitted here.

[0070] The above is a detailed introduction to a battery pack and electrical equipment provided in the embodiments of the present application, and specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application; ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery pack, characterized in that: include: A plurality of integrated tubes (1), the integrated tubes (1) comprising a first tube body (10) and a second tube body (11) sleeved outside the first tube body (10), the first tube body (10) having a receiving cavity (100), and a liquid cooling channel (12) separated from the receiving cavity (100) being formed between the first tube body (10) and the second tube body (11); a plurality of batteries (2), the plurality of batteries (2) being arranged in the accommodating cavity (100), and the batteries (2) being connected to the first tube (10); A first manifold (3), the first manifold (3) having a liquid inlet channel (300) and a liquid outlet channel (301) separated from each other; A second manifold (4), the second manifold (4) having a manifold cavity (40); The integrated pipe (1) is connected to the first manifold (3) and the second manifold (4); the liquid cooling channel (12) has a first port (110) and a second port (111); the first ports (110) of a plurality of the integrated pipes (1) are connected to the manifold cavity (40); some of the second ports (111) of a plurality of the integrated pipes (1) are connected to the liquid inlet channel (300); and another part of the second ports (111) are connected to the liquid outlet channel (301); the first manifold (3) is provided at one end of the integrated pipe (1), and the second manifold (4) is provided at the other end.

2. The battery pack according to claim 1, wherein: A plurality of integrated pipes (1) are arranged along a first direction (X), the first collecting pipe (3) comprises a third pipe body (31) and a separator (32), the third pipe body (31) has an inlet and outlet liquid cavity (30), the separator (32) is arranged in the inlet and outlet liquid cavity (30) and connected to the third pipe body (31) to separate the inlet and outlet liquid cavity (30) and form the inlet channel (300) and the outlet channel (301); In the first direction (X), one of the adjacent second ports (111) is connected to the liquid inlet channel (300), and the other is connected to the liquid outlet channel (301).

3. The battery pack according to claim 2, wherein: The second tube body (11) is connected to the first collecting pipe (3), and the connection point between the two is the second port (111); one end of the first tube body (10) extends from the second tube body (11) and is inserted into the first collecting pipe (3); The separator (32) extends in a wave shape in the first direction (X), and the second ports (111) adjacent to each other in the first direction (X) are respectively located on opposite sides of the separator (32) in the first direction (X).

4. The battery pack according to claim 3, wherein: Both ends of the first tube (10) extend from the second tube (11), and the first tube (10) has a third port (101) and a fourth port (102); The first manifold (3) is provided with a first opening (33), and the first opening (33) is connected to the third port (101); The second manifold (4) is provided with a second opening (41), and the second opening (41) is connected to the fourth port (102).

5. The battery pack according to claim 4, characterized in that: The plurality of integrated tubes (1) are arranged along a first direction (X), the first port (110), the second port (111), the third port (101) and the fourth port (102) are arranged in a second direction (Y), and the first direction (X) and the second direction (Y) intersect.

6. The battery pack according to claim 1, wherein: The plurality of integrated tubes (1) are arranged along a first direction (X), the plurality of batteries (2) in each accommodating cavity (100) are arranged along a second direction (Y), and the liquid cooling channel (12) extends along the second direction (Y), and the first direction (X) and the second direction (Y) intersect.

7. The battery pack according to claim 1, wherein: A plurality of integrated tubes (1) are arranged along a first direction (X); The battery pack further includes: A base (5), the base (5) is provided with a plurality of positioning grooves (50), the plurality of positioning grooves (50) are arranged along the first direction (X), and the second tube (11) is partially embedded in the positioning grooves (50); The first collecting pipe (3) and the second collecting pipe (4) are respectively connected to the base (5).

8. The battery pack according to claim 7, characterized in that: The base (5) has a first side surface (51) and a second side surface (52) arranged opposite to each other in the second direction (Y), the first header (3) is connected to the first side surface (51), and the second header (4) is connected to the second side surface (52); The battery pack further includes: A frame (6), the frame (6) surrounds the base (5), the first current collecting tube (3) and the second current collecting tube (4), the frame (6) is connected to the base (5), and the frame (6) clamps the first current collecting tube (3) relative to the first side surface (51), and the frame (6) clamps the second current collecting tube (4) relative to the second side surface (52).

9. The battery pack according to claim 1, wherein: The battery pack further comprises a heat-conducting layer (7), the heat-conducting layer (7) being arranged in the accommodating cavity (100), and the heat-conducting layer (7) being arranged between the battery (2) and the first tube (10) and connecting the battery (2) and the first tube (10).

10. An electrical device, characterized in that: A battery pack comprising the battery pack according to any one of claims 1 to 9.

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