Shell of battery pack, battery pack and vehicle

Abstract

The utility model discloses a shell of a battery pack, the battery pack and a vehicle. The shell of the battery pack comprises a top cover, the top cover comprises a cover body and seat fixing fasteners, first assembly holes are formed in the cover body, the seat fixing fasteners are arranged at the first assembly holes in a one-to-one correspondence mode, and the lower ends of the seat fixing fasteners are located in the shell to be fixed; the upper end of the seat fixing fastener is used for being connected with a seat. The housing allows the seat to be connected to the seat securing fastener by a fastener. When the seat is stressed, acting force can be conducted to the whole battery pack, the whole battery pack is used for dispersing impact force, and the damage degree of the dispersed impact force is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and in particular to a shell, a battery pack and a vehicle. Background Art

[0002] With the iteration and update of electric vehicle technology, the technology of battery-body integration continues to develop. The battery pack is directly integrated into the chassis of the electric vehicle to achieve a higher degree of integration. The battery pack includes a shell, an upper cover, a battery pack and electrical connection components. The shell defines an installation cavity, and the battery pack and electrical connection components are arranged in the installation cavity. The upper cover of the battery pack is located at the bottom of the body and can serve as the body floor. How to integrate the battery pack with the body requires further research. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a battery pack housing to improve the integrated design with the vehicle body.

[0004] The present application further proposes a battery pack using the above-mentioned shell.

[0005] The present application also proposes a vehicle using the above-mentioned battery pack.

[0006] According to the shell of the battery pack of an embodiment of the utility model, it includes: a top cover, the top cover includes a cover body and a seat fixing fastener, the cover body is provided with a first assembly hole, the seat fixing fastener is arranged at the first assembly hole, the lower end of the seat fixing fastener is located in the shell for fixing, and the upper end of the seat fixing fastener is used to connect the seat.

[0007] According to the shell of the battery pack of the embodiment of the utility model, the seat can be connected to the seat fixing fasteners by fasteners. When the seat is subjected to force, the force will be transmitted to the battery pack as a whole, and the battery pack as a whole will be used to disperse the impact force. With such a design, the battery pack can be integrated with the vehicle body after being installed on the vehicle body, and after the external impact on the vehicle body is dispersed to various positions, the degree of damage caused by the impact force after dispersion is reduced. Moreover, the battery pack can be used as part of the chassis of the vehicle body, so that the weight of the remaining chassis of the vehicle body can be greatly reduced. Similarly, the top cover can be used as part of the floor of the passenger space, so that the weight of the remaining floor of the vehicle body can be greatly reduced. It can also reduce the number of parts and assembly processes.

[0008] In some embodiments, the seat fixing fastener is provided with a seat fixing threaded hole extending downward from an upper end.

[0009] Specifically, the upper end of the seat fixing fastener is provided with a rotating platform surrounding the seat fixing threaded hole;

[0010] The rotating platform is annular, and its inner contour is polygonal and its outer contour is polygonal.

[0011] In some embodiments, the cover body is at least two layers, including a hard board layer and an insulating buffer layer.

[0012] In some embodiments, the top cover also includes a connecting flange located at the edge of the cover body, and the shell also includes: a pressure strip, which is stacked above the connecting flange and passes through the connecting flange and is connected to the frame of the battery pack through a fastener.

[0013] Specifically, the top cover is rectangular, and a pressure strip is disposed at each of the four corners of the top cover.

[0014] Optionally, the molding includes: a first molding, which is arranged along the long side of the top cover; a second molding, which is arranged along the wide side of the top cover; and a third molding, which is located at the corner where the long side and the wide side of the top cover are connected, and the third molding is separated from the first molding, and the third molding is separated from the second molding.

[0015] Optionally, the pressure strip includes: a fourth pressure strip, there are two of the fourth pressure strips, each of the fourth pressure strips is L-shaped and includes a first pressure dividing section and a second pressure dividing section, the first pressure dividing section is connected to the long side of the top cover, and the second pressure dividing section is connected to the wide side of the top cover; a fifth pressure strip, there are two of the fifth pressure strips, each of the fifth pressure strips is L-shaped and includes a third pressure dividing section and a fourth pressure dividing section, the third pressure dividing section is connected to the long side of the top cover, and the fourth pressure dividing section is connected to the wide side of the top cover; the sum of the lengths of the first pressure dividing section and the third pressure dividing section is less than or equal to the length of the long side of the top cover, and the sum of the lengths of the second pressure dividing section and the fourth pressure dividing section is less than or equal to the length of the wide side of the top cover.

[0016] Furthermore, there is an adhesive layer between the pressure strip and the connecting flange.

[0017] A battery pack according to an embodiment of the second aspect of the present application includes: a shell according to any one of the above embodiments.

[0018] The vehicle according to the third aspect embodiment of the present application includes: the battery pack described in the above embodiment.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a schematic diagram of a battery pack according to an embodiment of the present application;

[0022] Figure 2 is a schematic diagram of the coordination of a top cover, a seat fixing fastener and other fasteners according to some embodiments of the present application;

[0023] Figure 3 yes Figure 2 A partial side view of the top cover, seat fixing fasteners and other fasteners of the illustrated embodiment;

[0024] Figure 4 is a three-dimensional diagram of a top cover according to some embodiments of the present application;

[0025] Figure 5 is a schematic top view of a top cover, a pressure strip and other fasteners according to other embodiments of the present application;

[0026] Figure 6 yes Figure 5 A partial side view of the top cover, bead and other fasteners of the illustrated embodiment;

[0027] Figure 7 is a schematic top view of a layering strip according to some other embodiments of the present application;

[0028] Figure 8 It is an overall schematic diagram of a vehicle according to an embodiment of the utility model.

[0029] Reference numerals:

[0030] Vehicle 1000, battery pack 100, vehicle body 200, passenger space 220, seat 300,

[0031] Shell 1, frame 10, top cover 16, cover body 161, hard layer 161a, buffer layer 161b, connecting flange 162, limiting flange 163, arc plate segment 1631, vertical plate segment 1632, first assembly hole 166, second assembly hole 167, mounting beam 17,

[0032] The pressure strip 71, the first pressure strip 711, the second pressure strip 712, the third pressure strip 713, the fourth pressure strip 714, the first pressure-dividing section 714a, the second pressure-dividing section 714b, the fifth pressure strip 715, the third pressure-dividing section 715a, the fourth pressure-dividing section 715b, the seat fixing fastener 66, the seat fixing threaded hole 661, the rotating table 662, and the supporting round table 663. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are 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 invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 the present invention can be understood according to specific circumstances.

[0036] The housing 1 of the battery pack 100 and the battery pack 100 having the housing 1 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0037] See also Figure 1 and Figure 2 According to an embodiment of the present utility model, a battery pack housing 1 includes a top cover 16. Specifically, the housing 1 also includes a frame 10 and a bottom guard plate (not shown), the top cover 16 is connected to the top of the frame 10, and the bottom guard plate is connected to the bottom of the frame 10.

[0038] Specifically, the shape of the frame 10 usually determines the overall shape of the battery pack 100, and the frame 10 is a square frame or a hexagonal frame. The common frame 10 is a quadrilateral. Specifically, the frame 10 is formed by connecting four side beams end to end, and each side beam constitutes a side wall of the shell 1, and they are respectively the front side wall, the rear side wall, the left side wall, and the right side wall.

[0039] Optionally, at least one side beam can be made of profiled steel or rolled steel. In this way, the side beam can obtain strong structural rigidity and strength, and has certain toughness and strong anti-seismic, anti-compression and anti-shear properties, which is beneficial to protect the internal components of the battery pack 100. Alternatively, at least one side beam is an extruded aluminum profile, so that the production process of the side beam is simple and the production efficiency is high. In addition, the high-strength aluminum profile has strong structural rigidity and can also reduce weight, which can reduce the overall weight of the battery pack 100.

[0040] Furthermore, the frame 10 is connected with a mounting beam 17, and the mounting beam 17 can be mounted on the side beam, for example, the front side wall, the rear side wall, the left side wall, and the right side wall are all equipped with the mounting beam 17. Furthermore, when the battery pack 100 is assembled, the side beam of the frame 10 is connected to the top cover 16 and the bottom guard plate by bolts to improve the connection reliability.

[0041] See also Figure 2-Figure 4 The top cover 16 includes a cover body 161 and a seat fixing fastener 66 , and the cover body 161 is provided with a first assembly hole 166 . Optionally, there are at least two first assembly holes 166 in the same row, and the first assembly holes 166 are located in the middle area of ​​the cover body 161 .

[0042] The seat fixing fasteners 66 are arranged one by one at the first assembly holes 166, the lower ends of the seat fixing fasteners 66 are located in the frame 10 for fixing, and the upper ends of the seat fixing fasteners 66 are used to connect the seat 300. In other words, the seat fixing fasteners 66 are placed inside the frame 10 and can be directly or indirectly connected to the frame 10. The seat 300 can be connected to the seat fixing fasteners 66 through fasteners. When the seat 300 is subjected to force, the force will be transmitted to the battery pack 100 as a whole, and the battery pack 100 as a whole will be used to disperse the impact force.

[0043] With such a design, the battery pack 100 can be integrated with the vehicle body 200 after being installed on the vehicle body 200. After the external impact on the vehicle body 200 is dispersed to various locations, the degree of damage caused by the impact force after dispersion is reduced. In addition, the battery pack 100 can be used as part of the chassis of the vehicle body 200, so that the weight of the remaining chassis of the vehicle body 200 can be greatly reduced. Similarly, the top cover 16 can be used as part of the floor of the passenger space 220, so that the weight of the remaining floor of the vehicle body 200 can be greatly reduced. It can also reduce the number of parts and assembly processes.

[0044] In some specific embodiments, Figure 2As shown, the seat fixing fastener 66 is provided with a seat fixing threaded hole 661 extending from top to bottom. In this way, the seat 300 can be connected to the seat fixing fastener 66 by the threaded fastener. For example, a seat bottom beam is provided at the bottom of the seat 300, and a through hole is provided on the seat bottom beam. Bolts are passed through the through hole from top to bottom and then connected to the seat fixing threaded hole 661. Such a design can make the battery pack 100 and the seat 300 firmly and reliably connected, and can also achieve detachable assembly.

[0045] Optionally, the seat fixing threaded hole 661 passes through the seat fixing fastener 66 in the up-down direction, thereby reducing the difficulty of processing. Of course, it is not excluded that in some solutions, the bottom of the seat fixing threaded hole 661 is not through, and it is a blind hole.

[0046] Furthermore, if Figure 2 As shown, the upper end of the seat fixing fastener 66 is provided with a rotating platform 662 surrounding the seat fixing threaded hole 661, and the rotating platform 662 is annular.

[0047] Optionally, the inner contour of the rotating table 662 is a polygon, so that tools (such as screwdrivers, electric wrenches, etc.) can be easily engaged with the rotating table 662 to drive the seat fixing fasteners 66 to rotate and assemble, thereby improving the assembly efficiency of the rotating table 662.

[0048] Optionally, the outer contour of the rotating platform 662 is a polygon, so that it is convenient to use tools (such as wrenches, electric wrenches, etc.) to fit on the rotating platform 662, drive the seat fixing fasteners 66 to rotate and assemble, and improve the assembly efficiency of the rotating platform 662. In some solutions, after the seat 300 is installed on the battery pack 100, the tool can be fitted from the bottom of the seat 300 to the rotating platform 662, and can be used to tighten or loosen the seat fixing fasteners 66.

[0049] Specifically, the seat fixing fastener 66 also includes a support truncated platform 663, which is located below the rotating platform 662. The setting of the support truncated platform 663 is equivalent to forming a gasket integrally on the seat fixing fastener 66, increasing the contact area between the head of the seat fixing fastener 66 and the top cover 16, and making the pressure applied to the top cover 16 by the seat fixing fastener 66 during rotation balanced in the circumferential direction, thereby reducing the concentrated stress around the first assembly hole 166 and the tearing of the top cover 16. Furthermore, the outer contour of the rotating platform 662 is a hexagon, and the diameter of its circumscribed circle is smaller than the diameter of the support truncated platform 663, so that when a tool is matched with the outer contour of the rotating platform 662, the support truncated platform 663 can separate the tool from the top cover 16, thereby reducing the wear of the tool on the top cover 16.

[0050] Further optionally, the outer peripheral surface of the seat fixing fastener 66 is provided with an external thread, and is connected to the inside of the frame 10 by means of the external thread, thereby improving assembly efficiency.

[0051] In some embodiments, Figure 3 and Figure 4 As shown, the cover body 161 is at least two layers, including a hard plate layer 161a and an insulating buffer layer 161b. The hard plate layer 161a is used to ensure the overall rigidity of the top cover 16, while the buffer layer 161b can achieve buffer protection. Moreover, the use of the buffer layer 161b can be very convenient when performing a sealing connection, and the use of insulating material in the buffer layer 161b can improve the internal and external protection of the battery pack 100.

[0052] Optionally, the hard plate layer 161a is a steel plate layer or other metal layer. Optionally, the buffer layer 161b is a plastic layer, a composite plastic layer, a rubber layer, etc., which are not limited here.

[0053] See also Figure 5 and Figure 6 According to an embodiment of the present invention, a battery pack housing 1 includes a frame 10 and a top cover 16 connected to the top of the frame 10. The top cover 16 includes a cover body 161, and the top cover 16 also includes a connecting flange 162 located at the edge of the cover body 161, and a second assembly hole 167 is provided on the connecting flange 162.

[0054] The housing 1 further includes a pressure strip 71 , which is stacked on the connecting flange 162 and passes through the second assembly hole 167 and is connected to the frame 10 via a fastener.

[0055] Optionally, at least one of the pressure strips 71 is disposed at a corner of the outer contour of the top cover 16 , thereby preventing the corner of the top cover 16 from tilting up.

[0056] Specifically, the frame 10 is buckled with the top cover 16, and the top cover 16 is connected to the frame 10 through the connecting flange 162 at its edge. The connecting flange 162 is provided with a pressure strip 71, and the pressure strip 71, the connecting flange 162 and the frame 10 can be connected in sequence by fasteners to achieve assembly of the housing 1. When the fasteners are provided, the head of the fasteners can be directly abutted against the pressure strip 71, and the pressure strip 71 then abuts against the connecting flange 162, so as to prevent the fasteners from causing wear to the cover body 161 and the connecting flange 162.

[0057] Thus, the structure of the shell 1 can be made simple and compact, occupying a small installation space. The battery pack 100 shell 1 has fewer parts and welding points, is easy to assemble and disassemble, and the upper cover of the battery pack 100 shell 1 is not easy to wear and has a long service life.

[0058] It should be pointed out that in the prior art, the pressure strip is constructed as a plurality of long strips, which are sequentially arranged on the length edge or width edge of the top cover. The corners of the top cover are stress concentration points and are easily deformed, and there is no pressure strip at the corners. If the pressure strip is constructed as an integrated square-shaped pressure strip, it will occupy a large space, and the transportation and storage costs will be high. It is also easy to deform, which will further increase the difficulty of subsequent assembly and reduce the assembly accuracy.

[0059] Based on this, in the present application, at least one pressure strip 71 is set to be L-shaped and directly assembled to the outer contour corner of the top cover 16, and the outer contour corner of the top cover 16 is used to position the at least one pressure strip 71, thereby reducing the probability of misassembly and improving assembly efficiency. Moreover, the L-shaped pressure strip 71 can press the corner of the top cover 16, reduce deformation at the corner, and improve the overall anti-deformation ability.

[0060] Specifically, the top cover 16 is rectangular, and a pressure strip 71 is disposed at each of the four corners of the top cover 16 , so that the four corners of the top cover 16 can be pressed and constrained by the pressure strip 71 , thereby improving the force balance of the top cover 16 .

[0061] In some specific embodiments, Figure 5 As shown, the pressure strip 71 includes: a first pressure strip 711, a second pressure strip 712, and a third pressure strip 713. The first pressure strip 711 is arranged along the long side of the top cover 16, the second pressure strip 712 is arranged along the wide side of the top cover 16, and the third pressure strip 713 is located at the corner where the long side and the wide side of the top cover 16 are connected. In this way, the outer contour of the top cover 16 can be pressed by the corresponding pressure strip 71 on its long side, wide side and corner, so that a circle of second assembly holes 167 can be set on the edge of the top cover 16, and then a circle of fasteners can be connected, so as to improve the overall connection reliability of the top cover 16 and the frame 10.

[0062] Specifically, the third bead 713 is spaced apart from the first bead 711, and the third bead 713 is spaced apart from the second bead 712. In this way, the end of the first bead 711 will not press the third bead 713, and the end of the second bead 712 will not press the third bead 713, which is conducive to maintaining the edge flatness of the upper surface of the housing 1. Moreover, after being spaced apart, the bead 71 has expansion space in the length direction, reducing the possibility of extrusion deformation of the bead 71 when it expands and contracts due to heat.

[0063] In other specific embodiments, Figure 7 As shown, the pressure strip 71 includes: a fourth pressure strip 714 and a fifth pressure strip 715. There are two fourth pressure strips 714, each of which is L-shaped. There are two fifth pressure strips 715, each of which is L-shaped. In this way, the long pressure strip 71 is omitted, and the L-shaped pressure strip 71 is used for direct fixing.

[0064] The fourth pressure strip 714 includes a first pressure-dividing section 714a and a second pressure-dividing section 714b, wherein the first pressure-dividing section 714a is connected to the long side of the top cover 16, and the second pressure-dividing section 714b is connected to the wide side of the top cover 16. The fifth pressure strip 715 includes a third pressure-dividing section 715a and a fourth pressure-dividing section 715b, wherein the third pressure-dividing section 715a is connected to the long side of the top cover 16, and the fourth pressure-dividing section 715b is connected to the wide side of the top cover 16.

[0065] The sum of the lengths of the first pressure-dividing section 714 a and the third pressure-dividing section 715 a is less than or equal to the length of the long side of the top cover 16 , and the sum of the lengths of the second pressure-dividing section 714 b and the fourth pressure-dividing section 715 b is less than or equal to the length of the wide side of the top cover 16 .

[0066] Multiple beading strips 71 can be assembled into a complete rectangle to reduce space occupation and cost during transportation and storage. Each beading strip 71 is L-shaped, which reduces the probability of deformation of the beading strip 71, improves assembly accuracy, and reduces assembly difficulty. Each beading strip 71 is provided along a section of the long side of the top cover 16 and a section of the wide side of the top cover 16. During the assembly process of the beading strip 71, assembly positioning is performed to reduce the probability of wrong assembly and inverted assembly, so as to further improve assembly efficiency.

[0067] Optionally, the pressure strip 71 is bonded to the connecting flange 162. In this way, before installing the fasteners, the pressure strip 71 is positioned on the connecting flange 162 by gluing, so that the through hole on the pressure strip 71 is aligned with the second assembly hole 167 on the connecting flange 162, which makes it easier to install the fasteners later.

[0068] In another solution, the pressure strip 71 is bonded to the connecting flange 162, and the top cover 16 and the pressure strip 71 are transported as a whole before the battery pack 100 is assembled. The pressure strip 71 can be protected by the top cover 16 during transportation, and the pressure strip 71 utilizes the space of the top cover 16, saving the assembly and transportation space of the pressure strip 71.

[0069] exist Figure 6 In some embodiments shown, the top cover 16 further includes: a limiting flange 163, which is formed at the edge connected to the flange 162 and extends toward the frame 10. Therefore, the limiting flange 163 can be used to limit the position between the top cover 16 and other components, for example, the top cover 16 can be limited to the frame 10. For another example, when a sealing ring is provided on the lower surface of the top cover 16, the limiting flange 163 can be used to limit the sealing ring.

[0070] Specifically, one side of the limiting flange 163 is connected to the connecting flange 162, and the other side of the limiting flange 163 extends downward, which can be limited, and can reduce the difficulty of assembling the frame 10 and the top cover 16. When there is a sealing ring inside the limiting flange 163, the sealing ring can be limited when the sealing ring is in a compressed state to prevent the sealing ring from protruding from the end surface of the housing 1, thereby slowing down the aging speed of the sealing ring and preventing the sealing ring from partially protruding from the end surface and breaking, resulting in sealing failure, so as to improve the sealing stability.

[0071] It should be pointed out that the sealing ring has a certain elasticity, and therefore has a compressed state and a released state. In the released state, the sealing ring is thicker and smaller in width. Comparatively speaking, in the compressed state, the sealing ring is wider and smaller in thickness.

[0072] See also Figure 6 As shown, the limiting flange 163 includes: an arc plate segment 1631 and a vertical plate segment 1632. The arc plate segment 1631 is connected to the connecting flange 162, and the other end of the arc plate segment 1631 is connected to the vertical plate segment 1632. The vertical plate segment 1632 is spaced apart from the inner frame 10 (which may also include a sealing ring). In this way, sufficient inner clearance is provided to ensure a certain buffer margin.

[0073] According to an embodiment of the utility model, a shell 1 of a battery pack includes: a frame 10 and a top cover 16 and a pressure strip 71 connected to the top of the frame 10. The top cover 16 includes a cover body 161, a connecting flange 162 at the edge of the cover body 161, and a seat fixing fastener 66, the seat fixing fastener 66 is connected to the cover body 161, the lower end of the seat fixing fastener 66 is located in the frame 10 for fixing, and the upper end of the seat fixing fastener 66 is used to connect the seat 300. The pressure strip 71 is stacked above the connecting flange 162, and passes through the second assembly hole 167 and is connected to the frame 10 through a fastener. That is to say, there are also some embodiments of the shell 1, including a combination of multiple embodiments of the above two schemes, thereby improving the structural reliability of the battery pack 100 in multiple aspects.

[0074] In the above embodiment, further, the size of the top cover 16 in the up-down direction (i.e., its height) is at least 10 mm, for example, it can reach 10 mm, 11 mm, 12 mm, 14 mm, 15 mm, etc. In this way, by bending the edge of the cover body 161, that is, by forming a bent connecting flange 162, or forming a bent connecting flange 162 and a limiting flange 163, the height of the top cover 16 is increased, and the bending can strengthen the structural strength of the edge of the top cover 16, reduce the difficulty of deformation, and improve the ability to absorb external impact.

[0075] The battery pack 100 according to the second embodiment of the present application includes: the shell 1 in the above embodiment.

[0076] According to the battery pack 100 of the embodiment of the present application, the above-mentioned shell 1 is adopted, and the battery pack 100 is easily integrated with the vehicle body 200, thereby improving compactness and reducing assembly difficulty.

[0077] According to the vehicle 1000 of the third aspect of the present application, Figure 8 As shown, it includes: the battery pack 100 in the above embodiment, and the technical effects thereof are consistent with those of the above battery pack 100, which will not be repeated here.

[0078] It should be pointed out that the battery pack 100 in the embodiment of the present invention can be used as a power supply energy device for electrical equipment such as the vehicle 100, and can also be formed into an energy storage device with other uses.

[0079] Furthermore, the battery pack 100 and other structures and operations of the vehicle according to the embodiment of the present invention are known to ordinary technicians in the field and will not be described in detail here.

[0080] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. 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 utility model. 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. Although the embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A battery pack housing, characterized in that: include: A top cover, the top cover includes a cover body and a seat fixing fastener, the cover body is provided with a first assembly hole, the seat fixing fastener is arranged at the first assembly hole, the lower end of the seat fixing fastener is located in the shell for fixing, and the upper end of the seat fixing fastener is used for connecting the seat.

2. The battery pack housing according to claim 1, characterized in that: The seat fixing fastener is provided with a seat fixing threaded hole extending from top to bottom.

3. The battery pack housing according to claim 2, characterized in that: The upper end of the seat fixing fastener is provided with a rotating platform surrounding the seat fixing threaded hole; The rotating platform is annular, and its inner contour is polygonal and its outer contour is polygonal.

4. The battery pack housing according to claim 1, characterized in that: The cover body has at least two layers, including a hard board layer and an insulating buffer layer.

5. The battery pack housing according to any one of claims 1 to 4, characterized in that: The top cover further includes a connecting flange located at the edge of the cover body, and a second assembly hole is provided on the connecting flange. The shell further includes: A pressure strip is stacked on the connecting flange and passes through the second assembly hole through a fastener and is connected to the frame of the battery pack.

6. The battery pack housing according to claim 5, characterized in that: The top cover is rectangular, and each of the four corners of the top cover is provided with a pressure strip.

7. The battery pack housing according to claim 6, characterized in that: The layering strip comprises: a first pressure strip, the first pressure strip being arranged along a long side of the top cover; a second pressure strip, the second pressure strip being arranged along a wide side of the top cover; The third bead is L-shaped and is located at the corner where the long side and the wide side of the top cover are connected. The third bead is spaced apart from the first bead, and the third bead is spaced apart from the second bead.

8. The battery pack housing according to claim 6, characterized in that: The layering strip comprises: A fourth pressure strip, wherein there are two fourth pressure strips, each of which is L-shaped and includes a first pressure-dividing section and a second pressure-dividing section, wherein the first pressure-dividing section is connected to the long side of the top cover, and the second pressure-dividing section is connected to the wide side of the top cover; A fifth pressure strip, wherein there are two of the fifth pressure strips, each of which is L-shaped and includes a third pressure-dividing section and a fourth pressure-dividing section, wherein the third pressure-dividing section is connected to the long side of the top cover, and the fourth pressure-dividing section is connected to the wide side of the top cover; The sum of the lengths of the first pressure-dividing section and the third pressure-dividing section is less than or equal to the length of the long side of the top cover, and the sum of the lengths of the second pressure-dividing section and the fourth pressure-dividing section is less than or equal to the length of the wide side of the top cover.

9. A battery pack, characterized in that: include: The battery pack shell according to any one of claims 1 to 8.

10. A vehicle, characterized in that: include: The battery pack according to claim 9.

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