Adapter, battery, battery pack and electric equipment

Abstract

The embodiment of the utility model provides an adapter, and relates to the technical field of batteries, the adapter comprises two mounting parts arranged at an interval along a first direction, and a bending part used for bending is arranged between the two mounting parts; notches are formed in the two ends, in the second direction, of the bent part and provided with sharp corners, and the sharp corners at the two ends of the bent part are oppositely arranged in the second direction. In the embodiment of the invention, the two ends of the bent part between the two mounting parts are provided with the notches with the sharp corners, and the sharp corners at the two ends are oppositely arranged along the second direction, so that the adapter can form a stress concentration point at the sharp corners of the notches, and the adapter is easy to bend at the position; according to the invention, alignment of the two mounting parts after the adapter piece is bent is ensured, so that the cover plate assembly and the battery cell are easier to align, and when the battery cell is assembled into the shell and the cover plate assembly is welded to the shell, the assembly yield between the cover plate assembly and the shell is improved, and the assembly efficiency is improved.

Description

Technical Field

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

[0002] The adapter is a key component that connects the cover assembly and the battery cell. When assembling the adapter, the cover assembly and the battery cell, the adapter needs to be connected to the cover assembly and the battery cell respectively, and then the adapter is bent to align the cover assembly with the battery cell. Finally, they are assembled into the shell and the cover assembly is welded to the shell.

[0003] The adapter material commonly used at present is of high hardness, which makes it difficult to bend the adapter when assembling it with the cover assembly and the battery cell. When the adapter is bent, the bending position is easy to deviate, and the cover assembly and the battery cell are difficult to align. Since the battery cell is located in the center of the shell after being assembled into the shell, if the cover assembly and the battery cell are not aligned, it will affect the matching yield between the battery cover assembly and the shell, affecting the assembly efficiency. Utility Model Content

[0004] The present application aims to provide an adapter, a battery, a battery pack and an electrical device to solve the problem of low matching yield between the cover assembly and the shell of the battery caused by the adapter being difficult to bend.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, the present application discloses a transition piece, the transition piece comprising: two mounting portions spaced apart along a first direction, a bending portion for bending being provided between the two mounting portions;

[0007] Notches are provided at both ends of the bending portion along the second direction. The notches have sharp corners. The sharp corners at both ends of the bending portion are arranged opposite to each other along the second direction. The first direction intersects with the second direction.

[0008] Optionally, the sharp corner includes a first hypotenuse and a second hypotenuse arranged at a preset angle, and the first hypotenuse and the second hypotenuse are used to enclose and form the sharp corner.

[0009] Optionally, the angle range of the sharp angle is 30°-150°.

[0010] Optionally, the notch includes an adjusting portion and a sharp corner portion along the second direction, wherein the adjusting portion is arranged close to the opening of the notch, the sharp corner portion is arranged away from the opening of the notch, and the sharp corner is arranged at the sharp corner portion.

[0011] Optionally, the adjusting portion includes a first straight edge and a second straight edge arranged in parallel along the second direction;

[0012] One end of the first straight edge is connected to the first hypotenuse, and the other end of the first straight edge extends to the opening of the notch; one end of the second straight edge is connected to the second hypotenuse, and the other end of the second straight edge extends to the opening of the notch.

[0013] Optionally, the first straight edge and the second straight edge are spaced apart along the first direction, and the distance between the first straight edge and the second straight edge is 0.5-3 mm.

[0014] Optionally, the depth of the notch along the second direction ranges from 0.5 to 5 mm.

[0015] Optionally, a ratio of a length of the bending portion along the second direction to a depth of the notch along the second direction is in a range of 5-20.

[0016] Optionally, a connecting portion is further provided between the two mounting portions, one of the two mounting portions is a first mounting portion, and the other is a second mounting portion; a bending portion is provided between the first mounting portion and the connecting portion, and between the second mounting portion and the connecting portion.

[0017] Optionally, the adapter has a thickness ranging from 0.1 to 0.5 mm.

[0018] In a second aspect, the present application further discloses a battery, the battery comprising: a housing, a battery cell, a cover plate assembly, and the adapter as described above; wherein:

[0019] The shell has a accommodating cavity, the accommodating cavity has an opening, the battery cell is arranged in the accommodating cavity, and the cover plate assembly is connected to the opening of the accommodating cavity; the adapter is connected between the battery cell and the cover plate assembly in a bending manner.

[0020] Optionally, the adapter comprises a first mounting portion, a connecting portion, and a second mounting portion which are sequentially arranged at intervals; wherein,

[0021] A first bending portion is provided between the first mounting portion and the connecting portion, and a second bending portion is provided between the second mounting portion and the connecting portion;

[0022] The first mounting portion is provided with a first welding portion, the first welding portion is arranged in parallel with the first bending portion, and the distance between the first welding portion and the first bending portion is in the range of 2-4 mm.

[0023] In a third aspect, the present application also discloses a battery pack, which includes the battery as described above.

[0024] In a fourth aspect, the present application further discloses an electrical device, wherein the electrical device comprises the battery pack as described above.

[0025] In the embodiment of the present application, since the bending portion between the two mounting portions is provided with notches at both ends along the second direction, and the notches have sharp corners, a stress concentration point is formed at the sharp corner of the notch on the adapter, thereby making it easy for the adapter to bend at the sharp corner of the notch on the bending portion; in addition, when the bending portion is bent, the sharp corners at both ends of the bending portion are arranged relative to each other along the second direction, which is also beneficial to ensure the alignment of the two mounting portions after the adapter is bent, thereby making it easier to align the cover plate assembly respectively connected to the two mounting portions with the battery cell, and when the battery cell is assembled into the shell and the cover plate assembly is welded to the shell, it is beneficial to improve the assembly yield between the cover plate assembly and the shell, thereby improving the assembly efficiency.

[0026] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 is a schematic diagram of the structure of the adapter described in the embodiment of the present application;

[0029] Figure 2 is a top view of the adapter described in the embodiment of the present application;

[0030] Figure 3 yes Figure 2 A magnified schematic diagram of the middle part;

[0031] Figure 4 It is a schematic diagram of the connection between the adapter, the cover plate assembly and the battery cell described in the embodiment of the present application;

[0032] Figure 5 This is a schematic diagram of the adapter described in the embodiment of the present application being bent after being connected to the cover plate assembly and the battery cell;

[0033] Figure 6 yes Figure 5 The enlarged schematic diagram of the middle B part;

[0034] Figure 7 is a partial cross-sectional view of a battery according to an embodiment of the present application;

[0035] Figure 8 yes Figure 7 Enlarged schematic diagram of part C in the middle.

[0036] Figure markings: 100 - adapter; 10 - mounting portion; 11 - first mounting portion; 111 - through hole; 112 - first welding portion; 113 - second welding portion; 114 - third welding portion; 12 - second mounting portion; 20 - connecting portion; 30 - bending portion; 31 - first bending portion; 32 - second bending portion; 40 - notch; 401 - sharp corner; 41 - adjustment portion; 411 - first straight edge; 412 - second straight edge; 42 - sharp corner; 421 - first oblique edge; 422 - second oblique edge; 200 - housing; 300 - battery cell; 400 - cover assembly; x - first direction; y - second direction; z - third direction. DETAILED DESCRIPTION

[0037] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0038] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] An embodiment of the present application provides an adapter, which can be used to connect a cover plate assembly and a battery cell of a battery. Specifically, the adapter connects a pole in the cover plate assembly.

[0042] Reference Figure 1 , which shows a schematic diagram of the structure of the adapter 100 according to an embodiment of the present application; Figure 2 , showing a top view of the adapter 100 according to an embodiment of the present application; referring to Figure 3 , showing Figure 2 The enlarged schematic diagram of part A in the middle is as follows: Figures 1 to 3 As shown, the adapter 100 may specifically include: two mounting portions 10 spaced apart along a first direction x, a bending portion 30 for bending is provided between the two mounting portions 10; wherein, the bending portion 30 is provided with notches 40 at both ends along the second direction, the notch 40 has sharp corners 401, and the sharp corners 401 at both ends of the bending portion 30 are relatively arranged along the second direction, the first direction x intersects with the second direction y, and preferably, the first direction x is perpendicular to the second direction y.

[0043] During battery assembly, one mounting portion 10 is used to connect the cover plate assembly, and the other mounting portion 10 is used to connect the battery cell 300. The bending portion 30 can be bent. The adapter 100 can be bent by the bending portion 30, so that the two mounting portions 10 are folded in the third direction z, thereby making the cover plate assembly 400 and the battery cell 300 connected to the adapter folded in the third direction z. In addition, the bending portion 30 is provided with notches 40 at both ends along the second direction, and the notch 40 has sharp corners 401, and the sharp corners 401 at both ends of the bending portion are arranged opposite to each other along the second direction.

[0044] In actual applications, since the notch 40 has a sharp corner 401, a stress concentration point will be formed at the sharp corner 401 of the notch 40 of the adapter, making the adapter easy to bend; after the bending portion 30 is bent at the sharp corner 401 of the notch 40, it is helpful to ensure that the two mounting portions 10 can be aligned along the third direction z after the adapter 100 is bent.

[0045] Furthermore, since the two mounting portions 10 are respectively connected to the battery cover assembly 400 and the battery cell 300, the battery cover assembly 400 and the battery cell 300 can be aligned after the adapter 100 is bent by the bending portion 30. Since the battery cell 300 needs to be placed in the shell 200 and the cover assembly 400 is connected to the shell 200 during the actual assembly of the battery, the alignment of the cover assembly 400 and the battery cell 300 along the third direction z can prevent the cover assembly 400 from being offset relative to the shell 200, thereby facilitating the assembly yield between the battery cover assembly 400 and the shell 200.

[0046] Reference Figures 2 to 8 , the first direction is the direction indicated by the arrow x in the figure, the second direction is the direction indicated by the arrow y in the figure, and the third direction is the direction indicated by the arrow z in the figure. It should be noted that the first direction x shown in the figure is perpendicular to the second direction y only as an example, and in actual applications, the first direction x and the second direction y may intersect and form an angle setting of other angles.

[0047] In the embodiment of the present application, the sharp corner 401 includes a first bevel 421 and a second bevel 422 which are arranged at a preset angle, and the first bevel 421 and the second bevel 422 are used to enclose and form the sharp corner 401 .

[0048] Specifically, the lengths of the first oblique side 421 and the second oblique side 422 are equal, and the angles formed by the first oblique side 421 and the second oblique side 422 and the first direction x are also the same.

[0049] In the embodiment of the present application, the angle range of the sharp corner 401 is 30°-150°.

[0050] It should be noted that within this range, the bending portion 30 can be more easily bent without affecting the structural strength and bending effect of the adapter 100. When the angle of the sharp corner 401 is too small, the size of the notch 40 along the first direction x may be too small, making the bending portion 30 difficult to bend, or the size of the notch 40 along the second direction y may be too large, which may easily cause the adapter 100 to break, affecting the structural strength of the adapter 100 and the safety of the battery. On the contrary, when the angle of the sharp corner 401 is too large, the size of the notch 40 along the first direction x may be too large, causing the bending position to shift, or the size of the notch 40 along the second direction y may be too small, making the bending portion 30 difficult to bend.

[0051] In the embodiment of the present application, the notch 40 includes an adjustment portion 41 and a sharp corner portion 42 along the second direction y, wherein the adjustment portion 41 is arranged close to the opening of the notch 40, the sharp corner portion 42 is arranged away from the opening of the notch 40, and the sharp corner 401 is arranged at the sharp corner portion 42.

[0052] Specifically, one side of the adjusting portion 41 along the second direction y is connected to the pointed corner portion 42 , and the other side extends to the opening of the notch 40 .

[0053] In practical applications, the notch 40 of the bending portion 30 is processed by a stamping process, which may cause the position of the notch 40 to be offset due to the influence of the precision of the stamping die and the hardness and toughness of the material of the adapter 100. When the position of the notch 40 is offset along the second direction y, the size of the notch 40 at the end of the bending portion 30 along the first direction x is affected, thereby deviating from the design parameters of the notch 40 and affecting the bending effect of the adapter 100.

[0054] Therefore, an adjusting portion 41 connected to the sharp corner portion 42 is provided at the notch 40, and the width of the notch 40 along the first direction x is the size of the adjusting portion 41 at the end of the bending portion 30 along the first direction x; in the actual stamping process, even if the position of the notch 40 is offset along the second direction y, due to the existence of the adjusting portion 41, the stamping position offset at the sharp corner 401 caused by various reasons can be absorbed, so that the width of the notch 40 along the first direction x can be ensured to be within the design parameter range, thereby improving the accuracy of the bending position.

[0055] In the embodiment of the present application, the adjusting portion 41 includes a first straight edge 411 and a second straight edge 412 extending along the second direction y and arranged in parallel;

[0056] One end of the first straight side 411 is connected to the first oblique side 421 , and the other end of the first straight side 411 extends to the opening of the notch 40 ; one end of the second straight side 412 is connected to the second oblique side 422 , and the other end of the second straight side 412 extends to the opening of the notch 40 .

[0057] Specifically, the first straight edge 411 and the second straight edge 412 have the same length along the second direction y. Since the first oblique edge 421 and the second oblique edge 422 have the same length, after the first straight edge 411 is connected to the first oblique edge 421 and the second straight edge 412 is connected to the second oblique edge 422, the sharp corner 401 of the sharp corner portion 42 can be located at the center position of the notch 40, and the stress on both sides of the sharp corner 401 is more uniform, which is beneficial to ensuring the bending effect of the bending portion 30 at the sharp corner 401 of the notch 40, and preventing damage caused by uneven force when the adapter 100 is bent at the sharp corner 401.

[0058] In the embodiment of the present application, the first straight edge 411 and the second straight edge 412 are spaced apart along the first direction x, and the distance between the first straight edge 411 and the second straight edge 412 is 0.5-3 mm.

[0059] Reference Figure 3, the first straight edge 411 and the second straight edge 412 extend along the second direction y and are arranged in parallel, and the spacing between the first straight edge 411 and the second straight edge 412 along the first direction x is the width W of the notch 40. In practical applications, since the material hardness of the adapter 100 is relatively high, the width of the notch 40 preliminarily guarantees the bending range, and the width of the notch 40 is set to 0.5mm-3mm, and the angle of the sharp corner 401 is set between 30°-150°, so that the adapter 100 can be more easily bent at the notch 40.

[0060] It should be noted that the width of notch 40 also needs to take into account the thickness of adapter 100. When the thickness of adapter 100 is larger, its cross-sectional area will also be larger and its bending resistance will be stronger. Therefore, it is not advisable to set the width of notch 40 too small; when the thickness of adapter 100 is smaller, under the same material conditions, adapter 100 can be easier to bend, so the width of notch 40 can also be set smaller. When the width of notch 40 meets the bending conditions, setting the width of notch 40 smaller is also conducive to ensuring the accuracy of the bending position.

[0061] In the embodiment of the present application, the depth of the notch 40 along the second direction y is in the range of 0.5-5 mm, and the ratio of the length of the bending portion 30 along the second direction y to the depth of the notch 40 along the second direction y is in the range of 5-20.

[0062] Reference Figure 3 The distance between the sharp corner 401 of the notch 40 and the opening is the depth H of the notch 40. Figure 2 , the length of the bending portion 30 along the second direction y is L; specifically, the depth H of the notch 40 along the second direction y can be set in the range of 0.5-5mm, and the ratio of the length L of the bending portion 30 along the second direction y to the depth H of the notch 40 along the second direction y is in the range of 5-20. In practical applications, when the depth H of the notch 40 is too small, it is not conducive to the arrangement of the adjustment portion 41 and the sharp corner portion 42 of the notch 40, resulting in the adapter 100 being difficult to bend, and when the depth H of the notch 40 is too large, the spacing between the sharp corners 401 at both ends of the bending portion 30 along the second direction y will be smaller. After the adapter 100 is bent, due to the large stress at the sharp corner 401, the adapter 100 is prone to tearing at this location, affecting the structural strength and stability of the adapter 100.

[0063] In the embodiment of the present application, a connecting portion 20 is also provided between the two mounting portions 10. Among the two mounting portions 10, one is a first mounting portion 11 and the other is a second mounting portion 12. The first mounting portion 11 is used to connect the battery cell 300, and the second mounting portion 12 is used to connect the cover plate assembly 400. A bending portion 30 is provided between the first mounting portion 11 and the connecting portion 20, and between the second mounting portion 12 and the connecting portion 20.

[0064] Specifically, Figure 2 As shown, among the two mounting portions 10 , one mounting portion 10 is quasi-circular in shape, and the other mounting portion 10 is rectangular in shape, and the connecting portion 20 is a rectangle connected between the two mounting portions 10 along the first direction x.

[0065] Furthermore, a through hole 111 is provided at the center of the first mounting portion 11 , and the through hole 111 is used for the electrolyte to pass through to infiltrate the battery cell, or for the winding needle of the battery cell 300 to pass through.

[0066] In actual applications, the winding needle is used to wind up the internal structures of the battery cell 300, such as the positive electrode sheet, diaphragm, and negative electrode sheet. A through hole 111 is set at the center position of the first mounting part 11. The through hole 111 is a circular hole. The position of the through hole 111 corresponds to the position of the winding needle. The through hole 111 can make the first mounting part 11 of the adapter 100 avoid the winding needle when welding with the battery cell 300, thereby enhancing the welding effect and strength between the first mounting part 11 of the adapter 100 and the battery cell 300.

[0067] In the embodiment of the present application, the thickness of the adapter 100 is in the range of 0.1-0.5 mm.

[0068] It should be noted that since the materials of the positive and negative adapters of the battery are generally different, when the material hardness of the negative adapter is relatively high, the thickness of the negative adapter is set within the range of 0.1-0.5 mm, and the adapter 100 is easier to weld and has a higher welding strength.

[0069] In practical applications, the material of the adapter 100 can be nickel-plated copper, pure copper or aluminum alloy. The present application does not specifically limit the material of the adapter 100.

[0070] In summary, in the embodiment of the present application, since the bending portion 30 between the connecting portion 20 and the mounting portion 10 is provided with notches 40 at both ends along the second direction y, and the notch 40 has a sharp corner 401, a stress concentration point is formed at the sharp corner 401 of the notch 40 of the adapter 100, thereby making it easy for the adapter 100 to bend at the sharp corner 401 of the notch 40 of the bending portion 30; in addition, when the bending portion 30 is bent, the sharp corners 401 at both ends of the bending portion are arranged relative to each other along the second direction y, which is also beneficial to ensure the alignment of the two mounting portions 10 after the adapter 100 is bent, thereby making it easier to align the cover plate assembly 400 and the battery cell 300 respectively connected to the two mounting portions 10, and when the battery cell 300 is assembled into the shell 200 and the cover plate assembly 400 is welded to the shell 200, it is beneficial to improve the assembly yield between the cover plate assembly 400 and the shell 200.

[0071] Reference Figures 4 to 8, shows a schematic structural diagram of the battery described in an embodiment of the present application. As shown in the figure, the battery may specifically include: a shell 200, a battery cell 300, a cover assembly 400, and the adapter 100 as described above; wherein the shell 200 has a accommodating cavity, the accommodating cavity has an opening, the battery cell 300 is arranged in the accommodating cavity, and the cover assembly 400 is connected to the opening of the accommodating cavity; the adapter 100 is connected between the battery cell 300 and the cover assembly 400 in a bent manner.

[0072] Specifically, the cover plate assembly 400 includes a pole and a cover plate, the cover plate is used to be connected to the opening of the accommodating cavity, and the pole is used to be connected to the adapter 100 .

[0073] In the embodiment of the present application, the adapter 100 includes a first mounting portion 11, a connecting portion 20, and a second mounting portion 12 which are arranged in sequence. The first mounting portion 11 can be arranged in a substantially circular shape and is used for welding and connecting with the battery cell 300. A first bending portion 31 is arranged between the first mounting portion 11 and the connecting portion 20, and a second bending portion 32 is arranged between the second mounting portion 12 and the connecting portion 20. Since the first mounting portion needs to be welded with the battery cell, a first welding portion 112 is arranged on the first mounting portion 11, and the first welding portion 112 is arranged parallel to the first bending portion 31, and the spacing between the first welding portion 112 and the first bending portion 31 is in the range of 2-4 mm.

[0074] Specifically, refer to Figures 5 and 6 The first welding portion 112 is spaced apart from the first bending portion 31, and the first welding portion 112 is parallel to the first bending portion 31. The spacing between the first welding portion 112 and the second bending portion 32 is K, and the spacing K between the first welding portion 112 and the first bending portion 31 is in the range of 2-4 mm.

[0075] In actual applications, the adapter 100 and the battery cell 300 are laser welded, and a first welding portion 112 parallel to the first bending portion 31 is provided on the adapter 100. This can increase the welding area parallel to the bending direction, prevent the first welding portion 112 from being cracked due to stress when the adapter 100 is bent, and ensure the welding strength between the first mounting portion 11 and the battery cell 300.

[0076] It should be noted that when the spacing K between the first welding portion 112 and the first bending portion 31 is less than 2 mm, there may be a risk of tearing of the weld of the first welding portion 112 when the first bending portion 31 is bent; and when the spacing K between the first welding portion 112 and the first bending portion 31 exceeds 4 mm, the first welding portion 112 will affect the welding area between the first mounting portion 11 and the battery cell 300, thereby affecting the current carrying capacity of the adapter 100.

[0077] Furthermore, the first mounting portion 11 is also provided with a second welding portion 113 perpendicular to the first welding portion 112, and the first welding portion 112 and the second welding portion 113 are connected to form a T shape; the first mounting portion 11 is also provided with a plurality of third welding portions 114, and the plurality of third welding portions 114 are radially arranged along the first mounting portion 11.

[0078] In addition, a chamfer 121 is provided on one side of the second mounting portion 12 away from the second bending portion 32 along the first direction x, and the radius of the chamfer 121 is 0.5-3 mm. In practical applications, the chamfer 121 can prevent the edge of the second mounting portion 12 from scratching other components during the assembly of the adapter 100.

[0079] In the embodiment of the present application, a notch with a sharp corner is provided on the bending portion of the adapter 100, so that the adapter 100 can be easily bent, and the sharp corners at both ends of the bending portion are opposite to each other along the second direction y, which is conducive to ensuring that the two mounting portions are aligned after bending, so that after the two mounting portions of the adapter 100 are respectively connected to the battery cell 300 and the cover plate assembly 400, the alignment of the cover plate assembly 400 and the battery cell 300 is ensured, and when the battery cell 300 is assembled into the shell 200 and the cover plate assembly 400 is welded to the shell 200, it is conducive to improving the assembly yield between the cover plate assembly 400 and the shell 200.

[0080] The present application also provides a battery pack, which includes the battery as described above.

[0081] The present application also provides an electrical device, which includes the battery pack as described above.

[0082] It should be noted that the battery pack and electrical equipment provided in the embodiments of the present application have the same or similar beneficial effects as the above adapter, which will not be repeated here.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0084] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A transfer component, characterized in that: include: Two mounting portions are spaced apart along a first direction, and a bending portion for bending is provided between the two mounting portions; Notches are provided at both ends of the bending portion along the second direction, the notches have sharp corners, and the sharp corners at both ends of the bending portion are arranged opposite to each other along the second direction; the first direction intersects with the second direction.

2. The adapter according to claim 1, characterized in that: The sharp corner includes a first hypotenuse and a second hypotenuse arranged at a preset angle, and the first hypotenuse and the second hypotenuse are used to enclose and form the sharp corner.

3. The adapter according to claim 2, characterized in that: The angle range of the sharp angle is 30°-150°.

4. The adapter according to claim 2, characterized in that: The notch includes an adjusting portion and a sharp corner portion along the second direction, wherein the adjusting portion is arranged close to the opening of the notch, the sharp corner portion is arranged away from the opening of the notch, and the sharp corner is arranged at the sharp corner portion.

5. The adapter according to claim 4, characterized in that: The adjusting portion comprises a first straight edge and a second straight edge arranged in parallel along the second direction; One end of the first straight edge is connected to the first hypotenuse, and the other end of the first straight edge extends to the opening of the notch; one end of the second straight edge is connected to the second hypotenuse, and the other end of the second straight edge extends to the opening of the notch.

6. The adapter according to claim 5, characterized in that: The first straight edge and the second straight edge are spaced apart along the first direction, and the distance between the first straight edge and the second straight edge is 0.5-3 mm.

7. The adapter according to claim 1, characterized in that: The depth of the notch along the second direction ranges from 0.5 to 5 mm.

8. The adapter according to claim 1, characterized in that: The ratio of the length of the bending portion along the second direction to the depth of the notch along the second direction is in the range of 5-20.

9. The adapter according to any one of claims 1 to 8, characterized in that: A connecting portion is also provided between the two mounting portions, one of the two mounting portions is a first mounting portion, and the other is a second mounting portion; a bending portion is provided between the first mounting portion and the connecting portion, and between the second mounting portion and the connecting portion.

10. The adapter according to any one of claims 1 to 8, characterized in that: The thickness of the adapter is in the range of 0.1-0.5 mm.

11. A battery, characterized in that: include: A housing, a battery cell, a cover plate assembly, and an adapter as claimed in any one of claims 1 to 10; wherein, The shell has a accommodating cavity, the accommodating cavity has an opening, the battery cell is arranged in the accommodating cavity, and the cover plate assembly is connected to the opening of the accommodating cavity; the adapter is connected between the battery cell and the cover plate assembly in a bending manner.

12. The battery according to claim 11, characterized in that The adapter comprises a first mounting portion, a connecting portion and a second mounting portion which are sequentially arranged at intervals; wherein, A first bending portion is provided between the first mounting portion and the connecting portion, and a second bending portion is provided between the second mounting portion and the connecting portion; The first mounting portion is provided with a first welding portion, the first welding portion is arranged in parallel with the first bending portion, and the distance between the first welding portion and the first bending portion is in the range of 2-4 mm.

13. A battery pack, characterized in that: include: A battery as claimed in any one of claims 11 to 12.

14. An electrical device, characterized in that: include: The battery pack as claimed in claim 13.

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