Battery and vehicle including the same

Abstract

The utility model relates to the technical field of automobiles, particularly provides a battery and a vehicle comprising the battery, and aims to solve the problems that bubbles, wrinkles and the like are easy to generate when the battery of the conventional vehicle is coated by a single insulating film. Therefore, the battery comprises a shell, a first insulating film and a second insulating film, the first insulating film and the second insulating film wrap the outer surface of the shell, the first insulating film comprises a first end, the second insulating film comprises a second end attached to the first end, the first end is provided with a first through hole, and the second end is provided with a second through hole communicated with the first through hole. The first through hole and the second through hole which are communicated with each other are formed in the first insulating film and the second insulating film respectively, so that the through holes in the first insulating film and the second insulating film can be accurately overlapped together in the coating process of the insulating films, the mounting precision of the fabrication hole is improved, the defects of bubbles, wrinkles and the like in the coating process are reduced, and the service life of the fabrication hole is prolonged. And the coating quality of the insulating film is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and specifically provides a battery and a vehicle comprising the battery. Background Art

[0002] New energy vehicles have attracted more and more attention due to their low noise, no pollution, high energy efficiency and other characteristics, thus promoting the accelerated development of new energy vehicles. At present, new energy vehicles usually use batteries as a power source, which provides a broad space for the application and development of lithium-ion batteries.

[0003] The batteries of existing new energy vehicles are usually coated with insulating films. In the existing technology, most of them use a single insulating film to coat the battery shell along the circumference. During the coating process, defects such as bulging and tenting are easily generated, which seriously affects the coating quality of the battery. In addition, when a single insulating film is coated on the shell, the positioning accuracy of the process hole is poor, and bubbles, wrinkles and other defects are easily generated during the coating process, resulting in a high rework rate.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the above technical problem, that is, to solve the problem that the battery of the existing vehicle is prone to defects such as bubbles and wrinkles when it is coated with a single insulating film.

[0006] In a first aspect, the utility model provides a battery, comprising a shell, a first insulating film and a second insulating film covering the outer surface of the shell, wherein the first insulating film comprises a first end, the second insulating film comprises a second end abutting against the first end, the first end is provided with a first through hole, and the second end is provided with a second through hole connected to the first through hole.

[0007] When adopting the above-mentioned technical solution, the utility model respectively arranges the first through hole and the second through hole which are connected on the first insulating film and the second insulating film, so that during the coating process of the insulating film, the through holes on the first insulating film and the second insulating film can be accurately overlapped, thereby improving the installation accuracy of the process holes, reducing the generation of defects such as bubbles and wrinkles during the coating process, and improving the coating quality of the insulating film.

[0008] In a preferred technical solution of the above battery, the diameter of the first through hole is larger than the diameter of the second through hole; or, the diameter of the first through hole is smaller than the diameter of the second through hole.

[0009] When adopting the above technical solution, the utility model sets the apertures of the first through hole and the second through hole to different sizes, so that the through hole with a small aperture is easier to overlap with the through hole with a large aperture, thereby improving the installation accuracy of the process holes of the battery shell and improving the coating quality.

[0010] In a preferred technical solution of the above battery, a plurality of the first through holes and a plurality of the second through holes are provided, and the plurality of the first through holes correspond one to one to the plurality of the second through holes.

[0011] When the above technical solution is adopted, the utility model increases the reserved area of ​​the battery shell by setting the first through hole and the second through hole to a corresponding plurality, thereby providing more favorable reserved conditions for the subsequent fixing and installation of the battery shell.

[0012] In a preferred technical solution of the above battery, the first insulating film further includes a third end, the second insulating film further includes a fourth end, and the third end is in contact with the fourth end.

[0013] When the above technical solution is adopted, the utility model makes the third end of the first insulating film abut against the fourth end of the second insulating film, so that the battery shell is effectively covered by the insulating film, thereby improving the covering quality.

[0014] In a preferred technical solution of the above battery, the third end is provided with a third through hole, and the fourth end is provided with a fourth through hole connected to the third through hole.

[0015] When the above technical solution is adopted, the utility model increases the reserved area of ​​the battery shell by respectively providing a third through hole and a fourth through hole that are connected on the first insulating film and the second insulating film, thereby providing more favorable reserved conditions for the subsequent fixation and installation of the battery shell.

[0016] In a preferred technical solution of the above battery, the diameter of the third through hole is greater than the diameter of the fourth through hole; or, the diameter of the third through hole is smaller than the diameter of the fourth through hole.

[0017] When adopting the above technical solution, the utility model sets the apertures of the third through hole and the fourth through hole to different sizes, so that the through hole with a small aperture is easier to overlap with the through hole with a large aperture, thereby improving the installation accuracy of the process holes of the battery shell and improving the coating quality.

[0018] In a preferred technical solution of the above battery, the shell is provided with a connecting portion, the first end is provided with a first groove, and the connecting portion is accommodated in the first groove; or, the shell is provided with a connecting portion, the fourth end is provided with a second groove, and the connecting portion is accommodated in the second groove.

[0019] When the above technical solution is adopted, the utility model accommodates the connecting part in the first groove at the first end, so that the insulating film can completely cover the shell, thereby improving the covering quality, and accommodates the connecting part in the second groove at the fourth end, so that the insulating film can completely cover the shell, thereby improving the covering quality.

[0020] In a preferred technical solution of the above battery, the shell includes a first shell, a second shell, and a partition arranged between the first shell and the second shell, the first insulating film covers the outer surface of the first shell, and the second insulating film covers the outer surface of the second shell.

[0021] When the above technical solution is adopted, the utility model makes the shell processing simple and facilitates the installation of the battery by configuring the shell to be a first shell, a second shell and a partition.

[0022] In a preferred technical solution of the above battery, the first through holes are provided in two rows and are respectively close to the first shell and the second shell; and / or the fourth through holes are provided in two rows and are respectively close to the first shell and the second shell.

[0023] When the above technical solution is adopted, the utility model increases the reserved area of ​​the battery shell by arranging the first through holes into two rows respectively abutting the first shell and the second shell, and arranging the fourth through holes into two rows respectively abutting the first shell and the second shell, thereby providing more favorable reserved conditions for the subsequent fixation and installation of the battery shell.

[0024] In a second aspect, the utility model also provides a vehicle, comprising the above-mentioned battery.

[0025] When the above technical solution is adopted, the vehicle of the utility model has the beneficial effects of the above battery because it includes the above battery. Compared with the vehicle before the improvement, the battery of the vehicle of the utility model, by respectively providing a first through hole and a second through hole that are connected on the first insulating film and the second insulating film, allows the through holes on the first insulating film and the second insulating film to overlap accurately during the coating process of the insulating film, thereby improving the installation accuracy of the process holes, reducing the generation of defects such as bubbles and wrinkles during the coating process, improving the coating quality and quality of the insulating film, and making it less likely for the battery to have problems during use, thereby improving the quality of the vehicle and the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0027] Figure 1 This is a schematic diagram of the structure of the battery of the utility model Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the structure of the battery of the utility model Figure 2 ;

[0029] Figure 3 yes Figure 2 Sectional view at AA in the middle;

[0030] Figure 4 It is a structural explosion diagram of the battery of the utility model;

[0031] Figure 5 It is a structural schematic diagram of the battery housing of the utility model;

[0032] Figure 6 It is a schematic diagram of the structure of the utility model before being coated with the first insulating film;

[0033] Figure 7 It is a schematic diagram of the structure of the utility model before being coated with the second insulating film;

[0034] Figure 8 This is a schematic diagram of the structure of the utility model after being coated with the first insulating film;

[0035] Fig. 9 It is a schematic diagram of the structure of the utility model after being coated with the second insulating film.

[0036] List of reference numerals:

[0037] 1. Shell; 11. First shell; 12. Second shell; 13. Partition; 14. Connecting portion; 15. First side wall; 16. Second side wall; 17. Third side wall; 18. Fourth side wall; 141. First connecting portion; 142. Second connecting portion; 171. Third sub-side wall; 181. Fourth sub-side wall;

[0038] 21. first insulating film; 22. second insulating film; 211. first through hole; 212. third through hole; 213. first end; 214. third end; 2131. first groove; 221. second through hole; 222. fourth through hole; 223. second end; 224. fourth end; 2241. second groove. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0040] It should be noted that in the description of the present invention, the terms "inside", "outside", "upper", "lower", "top", "bottom", "left", "right", "front", "back" and other terms indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0041] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "connect", and "install" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Based on the problem pointed out in the background technology that the batteries of existing vehicles are prone to defects such as bubbles and wrinkles when coated with a single insulating film, the utility model provides a battery and a vehicle comprising the battery, aiming to reduce the generation of defects such as bubbles and wrinkles during the coating process by coating the battery shell with two insulating films. In addition, by correspondingly providing the first through holes and the second through holes connected to each other on the first insulating film and the second insulating film, the through holes on the first insulating film and the second insulating film can be accurately overlapped during the coating process of the insulating film, thereby improving the installation accuracy of the process holes of the battery shell and improving the coating quality of the insulating film.

[0043] Specifically, the utility model provides a vehicle, including a battery. The battery can provide power for the vehicle, and the quality of the battery directly affects the user experience of the vehicle.

[0044] like Figures 1 to 4 As shown, the battery of the utility model includes a shell 1, a first insulating film 21 and a second insulating film 22 coated on the outer surface of the shell 1, the first insulating film 21 includes a first end 213, the second insulating film 22 includes a second end 223 abutting against the first end 213, the first end 213 is provided with a first through hole 211, and the second end 223 is provided with a second through hole 221 connected to the first through hole 211.

[0045] For example, Figures 1 to 4 As shown, the housing 1 is in the shape of a rectangular parallelepiped and is arranged in the vertical direction. Figures 1 to 3Taking the perspective of as an example, the shell 1 has a first side wall 15 and a second side wall 16 relative to each other in the first direction, the first side wall 15 is located on the right side, and the second side wall 16 is located on the left side, and has a third side wall 17 and a fourth side wall 18 relative to each other in the second direction, the third side wall 17 is located on the upper side, and the fourth side wall 18 is located on the lower side, the area of ​​the first side wall 15 and the second side wall 16 is larger than the area of ​​the third side wall 17 and the fourth side wall 18, the first insulating film 21 is located on the right side and covers at least a portion of the first side wall 15, the third side wall 17 and the fourth side wall 18, and the second insulating film 22 is located on the left side and covers the second side wall 16, at least a portion of the third side wall 17 and the fourth side wall 18.

[0046] That is to say, the first insulating film 21 completely covers the third side wall 17, the second insulating film 22 covers at least a portion of the third side wall 17, and the first insulating film 21 and the second insulating film 22 located on the third side wall 17 overlap together. Similarly, the second insulating film 22 completely covers the fourth side wall 18, the first insulating film 21 covers at least a portion of the fourth side wall 18, and the first insulating film 21 and the second insulating film 22 located on the fourth side wall 18 overlap together. By using two insulating films, namely the first insulating film 21 and the second insulating film 22 to cover the first side wall 15, the second side wall 16, the third side wall 17 and the fourth side wall 18 of the shell 1, and by covering the shell 1 with the first insulating film 21 and the second insulating film 22, the generation of defects such as bubbles and wrinkles during the covering process is reduced, and the covering quality and quality of the insulating film are improved.

[0047] The first insulating film 21 is provided with a first through hole 211 on the first end 213 at a position corresponding to the third side wall 17, and the first through hole 211 penetrates the first insulating film 21 along the second direction. The second insulating film 22 is provided with a second through hole 221 on the second end 223 at a position corresponding to the first through hole 211, and the second through hole 221 penetrates the second insulating film 22 along the second direction. The first through hole 211 is connected to the second through hole 221.

[0048] That is to say, the first end 213 of the first insulating film 21 is first coated on the shell 1, and the second end 223 of the second insulating film 22 is attached to the first end 213. When the first insulating film 21 and the second insulating film 22 are coated on the shell 1, the second through hole 221 on the second insulating film 22 just overlaps with the first through hole 211 on the first insulating film 21, so that the shell 1 is exposed to the outside at the position where the first through hole 211 and the second through hole 221 overlap, thereby facilitating the assembly and connection of multiple groups of batteries. By connecting the first through hole 211 and the second through hole 221 together, it also plays a positioning role, thereby improving the installation accuracy of the process hole of the battery shell 1 and improving the coating quality of the insulating film.

[0049] It should be noted that the present invention does not limit the size of the portion of the first insulating film 21 coated on the fourth side wall 18 and the size of the portion of the second insulating film 22 coated on the third side wall 17. For example, a person skilled in the art may coat the entire first insulating film 21 on the fourth side wall 18, or may coat the first insulating film 21 only on a position close to the right edge of the fourth side wall 18, or may coat the first insulating film 21 only on the right half of the fourth side wall 18, and so on. Similarly, the size of the portion of the second insulating film 22 coated on the third side wall 17 may also be set according to the above-mentioned coating size. Such adjustment and change of the specific size of the portion of the first insulating film 21 coated on the fourth side wall 18 and the specific size of the portion of the second insulating film 22 coated on the third side wall 17 do not deviate from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.

[0050] Preferably, if Figure 3 As shown, the diameter of the first through hole 211 of the present invention is greater than the diameter of the second through hole 221 .

[0051] For example, Figure 3 As shown, the first end 213 (the upper end as viewed from the figure) of the first insulating film 21 of the utility model is coated on the shell 1, the second end 223 (the upper end as viewed from the figure) of the second insulating film 22 is abutted against the first end 213, the second through hole 221 just overlaps with the first through hole 211, and the diameter of the first through hole 211 is larger than the diameter of the second through hole 221. Through such an arrangement, the second through hole 221 and the first through hole 211 can be accurately overlapped during the coating process of the insulating film, thereby improving the installation accuracy of the process holes of the battery shell 1 and improving the coating quality of the insulating film.

[0052] It should be noted that the present invention does not limit the aperture sizes of the first through hole 211 and the second through hole 221. For example, those skilled in the art may also set the aperture of the first through hole 211 to be smaller than the aperture of the second through hole 221, and so on. Such specific adjustments and changes to the aperture sizes of the first through hole 211 and the second through hole 221 do not deviate from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.

[0053] Preferably, if Figure 4 , Figures 6 to 9 As shown, the utility model has a plurality of first through holes 211 and a plurality of second through holes 221 , and the plurality of first through holes 211 corresponds to the plurality of second through holes 221 one by one.

[0054] For example, Figure 4 , Figures 6 to 9As shown, the multiple first through holes 211 are divided into two groups, the two groups of first through holes 211 are spaced apart along the length direction of the third side wall 17 and are respectively located at both ends of the third side wall 17, one group of first through holes 211 is located at the front end of the third side wall 17, and the other group of first through holes 211 is located at the rear end of the third side wall 17, both groups include multiple first through holes 211, and the number of first through holes 211 in the two groups is preferably set to be the same, and the multiple second through holes 221 are arranged one-to-one with the multiple first through holes 211.

[0055] Preferably, if Figure 3 and Figure 4 As shown, the first insulating film 21 of the present invention further includes a third end 214 , and the second insulating film 22 further includes a fourth end 224 , and the third end 214 is in contact with the fourth end 224 .

[0056] For example, Figure 3 and Figure 4 As shown, the fourth end 224 (the lower end as viewed from the figure) of the second insulating film 22 of the present invention is wrapped around the housing 1 , and the third end 214 (the upper end as viewed from the figure) of the first insulating film 21 is abutted against the fourth end 224 .

[0057] Preferably, if Figure 3 , Figure 4 , Figures 6 to 9 As shown, the third end portion 214 of the present invention is provided with a third through hole 212 , and the fourth end portion 224 is provided with a fourth through hole 222 communicating with the third through hole 212 .

[0058] For example, Figure 3 , Figure 4 , Figures 6 to 9 As shown, the second insulating film 22 of the utility model is provided with a fourth through hole 222 at the position of the fourth end 224 corresponding to the fourth side wall 18, and the fourth through hole 222 penetrates the second insulating film 22 along the second direction. The first insulating film 21 is provided with a third through hole 212 at the position of the third end 214 corresponding to the fourth through hole 222, and the third through hole 212 penetrates the first insulating film 21 along the second direction. The aperture of the fourth through hole 222 is connected with the third through hole 212.

[0059] That is to say, the fourth end 224 of the second insulating film 22 is first coated on the shell 1, and the third end 214 of the first insulating film 21 is abutted against the fourth end 224. When the first insulating film 21 and the second insulating film 22 are coated on the shell 1, the third through hole 212 on the first insulating film 21 and the fourth through hole 222 on the second insulating film 22 are exactly overlapped, so that the shell 1 is exposed to the outside at the overlapping position of the third through hole 212 and the fourth through hole 222, thereby facilitating the assembly and connection of multiple groups of batteries. By setting the apertures of the third through hole 212 and the fourth through hole 222 to be different, the third through hole 212 and the fourth through hole 222 can be accurately overlapped during the coating process of the insulating film, thereby improving the installation accuracy of the process holes of the battery shell 1 and improving the coating quality of the insulating film.

[0060] Preferably, if Figure 3 As shown, the diameter of the fourth through hole 222 of the present invention is greater than the diameter of the third through hole 212 .

[0061] For example, Figure 3 As shown, the fourth end 224 (the lower end as seen in the figure) of the second insulating film 22 of the utility model is coated on the shell 1, and the third end 214 (the lower end as seen in the figure) of the first insulating film 21 is abutted against the fourth end 224, and the third through hole 212 just overlaps with the fourth through hole 222, and the diameter of the fourth through hole 222 is larger than the diameter of the third through hole 212. Through such an arrangement, the third through hole 212 and the fourth through hole 222 can be accurately overlapped during the coating process of the insulating film, thereby improving the installation accuracy of the process holes of the battery shell 1 and improving the coating quality of the insulating film.

[0062] It should be noted that the present invention does not limit the aperture size of the third through hole 212 and the fourth through hole 222. For example, those skilled in the art may also set the aperture of the fourth through hole 222 to be smaller than the aperture of the third through hole 212, and so on. Such specific adjustment and change of the aperture size of the third through hole 212 and the fourth through hole 222 does not deviate from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.

[0063] Preferably, if Figures 1 to 9 As shown, the housing 1 of the present invention is provided with a connecting portion 14 , the first end portion 213 is provided with a first groove 2131 , the connecting portion 14 is received in the first groove 2131 , and the fourth end portion 224 is provided with a second groove 2241 , the connecting portion 14 is received in the second groove 2241 .

[0064] For example, Figures 1 to 9As shown, the third side wall 17 is provided with a connecting portion 14 extending along the length direction of the third side wall 17 and vertically upward, and the fourth side wall 18 is also provided with a connecting portion 14 extending along the length direction of the fourth side wall 18 and vertically downward. The connecting portion 14 divides the third side wall 17 into two third sub-side walls 171 along the first direction, and the connecting portion 14 divides the fourth side wall 18 into two fourth sub-side walls 181 along the first direction. The first insulating film 21 covers the fourth sub-side wall 181 located on the right side, and the second insulating film 22 covers The third sub-side wall 171 located on the left side is covered, the first insulating film 21 completely covers the third side wall 17, and the first end 213 of the first insulating film 21 is provided with a first groove 2131 at the connecting portion 14, the first groove 2131 covers the part of the connecting portion 14 located at the top of the shell, the second insulating film 22 completely covers the fourth side wall 18, and the fourth end 224 of the second insulating film 22 is provided with a second groove 2241 at the connecting portion 14, the second groove 2241 covers the part of the connecting portion 14 located at the bottom of the shell.

[0065] That is to say, the connecting portion 14 separates the third side wall 17 and the fourth side wall 18 into two symmetrical parts on the left and right. The first insulating film 21 located on the third side wall 17 and the second insulating film 22 located on the third sub-side wall 171 on the left overlap together. Similarly, the first insulating film 21 and the second insulating film 22 located on the fourth sub-side wall 181 on the right overlap together.

[0066] It should be noted that the present invention does not limit the setting position of the connection part 14. For example, a person skilled in the art can use the connection part 14 to separate the third side wall 17 and the fourth side wall 18 into two asymmetric parts, etc. Such adjustment and change of the specific setting position of the connection part 14 does not deviate from the principle and scope of the present invention and should be limited within the protection scope of the present invention.

[0067] Of course, the utility model preferably uses the connecting portion 14 to separate the third side wall 17 and the fourth side wall 18 into two symmetrical parts, which facilitates the processing and installation of the shell 1 and the coating of the insulating film, and improves the coating efficiency and coating quality.

[0068] Next, the technical solution of the present invention will be further explained by taking the example of using the connecting portion 14 to separate the third side wall 17 and the fourth side wall 18 into two symmetrical parts, and the first insulating film 21 covers the fourth sub-side wall 181 located on the right, and the second insulating film 22 covers the third sub-side wall 171 located on the left.

[0069] Preferably, if Figure 5As shown, the housing 1 of the present invention comprises a first housing 11 , a second housing 12 , and a partition 13 disposed between the first housing 11 and the second housing 12 . The first insulating film 21 covers the outer surface of the first housing 11 , and the second insulating film 22 covers the outer surface of the second housing 12 .

[0070] For example, Figure 5 As shown, the shell 1 includes a first shell 11, a partition 13 and a second shell 12 distributed along a first direction, the first shell 11 is located on the right side, the second shell 12 is located on the left side, the partition 13 is located between the first shell 11 and the second shell 12, the partition 13 and the first shell 11 and the second shell 12 respectively enclose a first chamber and a second chamber, the first chamber and the second chamber are both used to install the battery body, the first side wall 15, the third sub-side wall 171 located on the right side and the fourth sub-side wall 181 located on the right side are located on the first shell 11, the second side wall 16, the third sub-side wall 171 located on the left side and the fourth sub-side wall 181 located on the left side are located on the second shell 12, and the first shell 11 is provided with a first connecting portion 14 arranged along the circumferential direction of the side wall of the first shell 11 1, the second shell 12 is provided with a second connecting portion 142 arranged along the circumferential direction of the side wall of the second shell 12, the first connecting portion 141 and the second connecting portion 142 are respectively pressed against the edges of the two sides of the partition 13, so as to form a welding portion abutting together, and the shell 1 can be sealed by laser welding, the first insulating film 21 covers the outer surface of the first shell 11, wherein the specific covering positions are the first side wall 15, the third sub-side wall 171 located on the first shell 11, and the fourth sub-side wall 181 located on the first shell 11, and the second insulating film 22 covers the outer surface of the second shell 12, wherein the specific covering positions are the second side wall 16, the third sub-side wall 171 located on the second shell 12, and the fourth sub-side wall 181 located on the second shell 12.

[0071] Preferably, if Figure 4 , Figure 6 and Figure 8 As shown, the first through holes 211 of the present invention are provided in two rows and are respectively close to the first shell 11 and the second shell 12 .

[0072] For example, Figure 4 , Figure 6 and Figure 8As shown, the number of the two groups of first through holes 211 on the first insulating film 21 at the front and rear ends of the third sub-side wall 171 covered on the right side are both 10 and are symmetrically arranged, the first through holes 211 on the first insulating film 21 covered on the left side and the first through holes 211 on the first insulating film 21 covered on the right side are symmetrically arranged, that is, the number of the first through holes 211 on the first insulating film 21 covered on the third side wall 17 is 40, and 20 second through holes 221 are provided on the second insulating film 22 covered on the third sub-side wall 171 on the left side, and the positions of the 20 second through holes 221 coincide with the 20 first through holes 211 on the first insulating film 21 covered on the third sub-side wall 171 on the left side.

[0073] That is, two rows of first through holes 211 are respectively covered on the third sub-side wall 171 located on the first shell 11 and the second shell 12 , and one row of second through holes 221 is covered on the corresponding first through holes 211 .

[0074] Preferably, if Figure 4 , Figure 7 and Fig. 9 As shown, the fourth through holes 222 of the present invention are provided in two rows and are respectively close to the first shell 11 and the second shell 12 .

[0075] For example, Figure 4 , Figure 7 and Fig. 9 As shown, the number of the two groups of fourth through holes 222 on the second insulating film 22 at the front and rear ends of the fourth sub-side wall 181 covered on the left side are both 10 and are symmetrically arranged, the fourth through holes 222 on the second insulating film 22 covered on the fourth sub-side wall 181 on the right side are symmetrically arranged with the fourth through holes 222 on the second insulating film 22 covered on the fourth sub-side wall 181 on the left side, that is, the number of the fourth through holes 222 on the second insulating film 22 covered on the fourth side wall 18 is 40, and 20 third through holes 212 are provided on the first insulating film 21 covered on the fourth sub-side wall 181 on the right side, and the positions of the 20 third through holes 212 coincide with the 20 fourth through holes 222 on the second insulating film 22 covered on the fourth sub-side wall 181 on the right side.

[0076] That is to say, two rows of fourth through holes 222 are respectively covered on the fourth sub-side wall 181 located on the first shell 11 and the second shell 12 , and one row of third through holes 212 is covered on the corresponding fourth through holes 222 .

[0077] It should be noted that the present invention does not limit the number of the first through hole 211, the second through hole 221, the third through hole 212 and the fourth through hole 222 in each group. For example, those skilled in the art may also set the number of the first through hole 211, the second through hole 221, the third through hole 212 and the fourth through hole 222 in each group to 8, 12 or 14, etc. Such adjustment and change to the specific number of the first through hole 211, the second through hole 221, the third through hole 212 and the fourth through hole 222 in each group does not deviate from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.

[0078] Those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims of the present application, any one of the claimed embodiments may be used in any combination.

[0079] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A battery, characterized in that: The battery includes a shell, a first insulating film and a second insulating film covering the outer surface of the shell, the first insulating film includes a first end, the second insulating film includes a second end abutting against the first end, the first end is provided with a first through hole, and the second end is provided with a second through hole connected to the first through hole.

2. The battery according to claim 1, characterized in that The diameter of the first through hole is greater than the diameter of the second through hole; or the diameter of the first through hole is smaller than the diameter of the second through hole.

3. The battery according to claim 2, characterized in that There are a plurality of the first through holes and the second through holes, and the plurality of the first through holes corresponds to the plurality of the second through holes in a one-to-one manner.

4. The battery according to claim 3, characterized in that The first insulating film further includes a third end portion, and the second insulating film further includes a fourth end portion, and the third end portion abuts against the fourth end portion.

5. The battery according to claim 4, characterized in that The third end portion is provided with a third through hole, and the fourth end portion is provided with a fourth through hole communicating with the third through hole.

6. The battery according to claim 5, characterized in that The diameter of the third through hole is greater than the diameter of the fourth through hole; or, the diameter of the third through hole is smaller than the diameter of the fourth through hole.

7. The battery according to claim 6, characterized in that The shell is provided with a connecting portion, the first end is provided with a first groove, and the connecting portion is received in the first groove; or the shell is provided with a connecting portion, the fourth end is provided with a second groove, and the connecting portion is received in the second groove.

8. The battery according to claim 7, characterized in that The shell includes a first shell, a second shell, and a partition disposed between the first shell and the second shell. The first insulating film covers an outer surface of the first shell, and the second insulating film covers an outer surface of the second shell.

9. The battery according to claim 8, characterized in that The first through holes are arranged in two rows and are respectively close to the first shell and the second shell; and / or the fourth through holes are arranged in two rows and are respectively close to the first shell and the second shell.

10. A vehicle, characterized in that: The vehicle comprises the battery according to any one of claims 1 to 9.

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