Battery packs and vehicles

Abstract

This application provides a battery pack and a vehicle. The battery pack includes a housing, a riser assembly, and a connector assembly. The housing includes a top cover and a bottom plate disposed opposite each other, and a side shell connecting the top cover and the bottom plate. The top cover, bottom plate, and side shell together form a cell space. The side shell includes a mounting portion facing a first side of the battery pack, and the bottom plate protrudes beyond the mounting portion facing the first side. The two sides of the riser assembly are respectively abutted and fixed to the mounting portion and the connector assembly. The connector assembly extends into the cell space through the riser assembly and the mounting portion. By providing the riser assembly, the connector assembly is raised on the mounting portion, reducing the distance between the connector assembly and the edge of the bottom plate, reducing the impact of the bottom plate on the wiring harness insertion, and improving the installation efficiency of the battery pack.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a battery pack and a vehicle. Background Technology

[0002] With the continuous development of technology, new energy vehicles are becoming increasingly popular. The battery pack is a crucial component of new energy vehicles, providing the energy source for the entire vehicle. The battery pack casing typically includes a top cover, a bottom plate, and side shells, which together form a space for installing the battery cells. The side shells are equipped with connectors for connecting wiring harnesses to provide power. Currently, the bottom plate extends beyond the side shells to secure cooling connectors to the extended portion, used to connect water pipes for cooling the battery pack. However, this design increases the distance between the bottom plate edge and the side shells, requiring the wiring harnesses to bypass the bottom plate and connect to the connectors, reducing the battery pack's installation efficiency. Utility Model Content

[0003] This application provides a battery pack and a vehicle to solve related technical problems.

[0004] A battery pack includes: a housing, a shim assembly, and a plug-in assembly; the housing includes an upper cover and a bottom plate disposed opposite each other, and a side shell connecting the upper cover and the bottom plate; the upper cover, the bottom plate, and the side shell together form a cell space; the side shell includes a mounting portion facing a first side of the battery pack, and the bottom plate protrudes beyond the mounting portion facing the first side; the two sides of the shim assembly are respectively abutted and fixed to the mounting portion and the plug-in assembly; the plug-in assembly extends through the shim assembly and the mounting portion into the cell space.

[0005] By setting up the shim assembly, the plug-in assembly is raised on the mounting section, reducing the distance between the plug-in assembly and the edge of the base plate. This reduces the impact of the base plate on the wiring harness plug-in and improves the installation efficiency of the battery pack.

[0006] Furthermore, the mounting portion is provided with a first through hole for the insertion assembly to pass through; the elevation assembly includes a seal and an elevation plate; the seal is disposed around the first through hole; the mounting portion and the elevation plate clamp and fix the seal. By providing a seal, the connection sealing between the elevation assembly and the mounting portion is improved, ensuring battery safety.

[0007] Furthermore, the battery pack also includes a first bolt, which passes through the plug-in assembly and connects to the mounting portion via the shim assembly. The bolted connection offers high strength and is easy to install and remove, facilitating future maintenance of the battery pack.

[0008] Furthermore, the battery pack also includes a second bolt spaced apart from the plug-in assembly; the second bolt passes through the shim assembly and connects to the mounting portion. By providing the additional second bolt, the shim assembly is further secured, improving its installation strength.

[0009] Furthermore, the number of the first bolts is multiple, and the multiple first bolts are distributed at rectangular intervals; and / or, the number of the second bolts is multiple, and the multiple second bolts are distributed at rectangular intervals. By setting multiple bolts, the installation stability of the shim assembly and the plug assembly is enhanced.

[0010] Furthermore, the mounting part is provided with a first nut that cooperates with the first bolt for installation; the first nut protrudes from the mounting part toward the shim assembly, the shim assembly is provided with a first positioning hole, and the first nut is fitted into the first positioning hole;

[0011] And / or, the mounting part is provided with a second nut that cooperates with the second bolt; the second nut protrudes from the mounting part toward the shim assembly, the shim assembly is provided with a second positioning hole, and the second nut is fitted into the second positioning hole.

[0012] The protruding first and second nuts serve a positioning function. By engaging with the corresponding positioning holes, the installation efficiency of the shim assembly is improved.

[0013] Furthermore, the upper cover includes an upper cover body and a first fixing portion extending from the upper cover body toward a first side; the upper end of the mounting portion extends toward the first side to form a second fixing portion; the first fixing portion and the second fixing portion are fixedly connected by fixing bolts. Bolted connections have high strength and are easy to install and remove, which is beneficial for later maintenance of the battery pack.

[0014] Furthermore, the shim assembly has a clearance groove on the side facing the first fixing part to allow the fixing bolts to pass. By providing the clearance groove, the compactness of the battery pack is improved.

[0015] Furthermore, the base plate protrudes towards the first side to form a protrusion extending beyond the mounting portion; in a direction perpendicular to the protrusion, the protrusion extends from one side of the side shell to the other. The continuous arrangement of the protrusions improves the structural strength of the battery pack.

[0016] This application also provides a vehicle including the aforementioned battery pack. Because the installation efficiency of the battery pack is improved, the assembly efficiency of the vehicle is also enhanced.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0019] Figure 1 This is a structural diagram of a battery pack according to an exemplary embodiment of this application;

[0020] Figure 2 yes Figure 1 Structural diagram of the battery pack from a frontal view;

[0021] Figure 3 yes Figure 2 Cross-sectional view of the battery pack at point AA;

[0022] Figure 4 yes Figure 2 Cross-sectional view of the battery pack at BB;

[0023] Figure 5 yes Figure 1 3D exploded view of the battery pack;

[0024] Figure 6 yes Figure 5 A magnified view of a portion of the battery pack;

[0025] Figure 7 yes Figure 5 3D exploded view of the center-elevation component;

[0026] Figure 8 yes Figure 7 Structural diagram of the central sealing component;

[0027] Figure 9 yes Figure 7 Structural diagram of the intermediate raised plate.

[0028] Reference numerals: Housing - 10; Cell space - 100; Top cover - 11; Top cover body - 111; First fixing part - 112; Base plate - 12; Protrusion - 121; Side shell - 13; Mounting part - 131; Second fixing part - 132; First through hole - 133; First nut - 134; Second nut - 135; Connecting bracket - 136; Elevation assembly - 20; First positioning hole - 201; Second positioning hole - 202; Circumvention groove - 203; Seal - 21; Second through hole - 211; First assembly hole - 212; Second assembly hole - 213; Elevation plate - 22; Third through hole - 221; Third assembly hole - 222; Fourth assembly hole - 223; Positioning hole - 224; Plug-in assembly - 30; Cooling connector - 40; First bolt - 51; Second bolt - 52; Fixing bolt - 53. Detailed Implementation

[0029] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0030] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0031] A battery pack casing typically includes a top cover, a bottom plate, and side shells. The side shells are equipped with connectors for connecting wiring harnesses. Currently, the bottom plate extends beyond the side shells to accommodate cooling connectors. However, the wiring harnesses need to bypass the extended portion of the bottom plate for connection, reducing the battery pack's installation efficiency. This application provides a battery pack and vehicle to address these related technical problems.

[0032] like Figure 1 As shown, this application provides a battery pack, which includes a housing 10, a riser assembly 20, a plug-in assembly 30, and a cooling connector 40. Please refer to the following documents as well. Figures 2 to 3 As shown, the housing 10 includes an upper cover 11 and a bottom plate 12 disposed opposite to each other, and a side shell 13 connecting the upper cover 11 and the bottom plate 12. The upper cover 11, the bottom plate 12 and the side shell 13 together form a cell space 100.

[0033] The side shell 13 includes a mounting portion 131 facing a first side of the battery pack, and a base plate 12 protruding beyond the mounting portion 131 facing the first side. The first side may be the side facing forward of the vehicle. A cooling connector 40 is mounted to the position of the base plate 12 extending beyond the mounting portion 131. The two sides of the riser assembly 20 are respectively abutted and fixed to the mounting portion 131 and the plug assembly 30. The plug assembly 30 extends through the riser assembly 20 and the mounting portion 131 into the cell space 100.

[0034] By setting the shim assembly 20, the plug-in assembly 30 is raised on the mounting part 131, reducing the distance between the plug-in assembly 30 and the edge of the base plate 12. This reduces the impact of the base plate 12 on the wiring harness plug-in and improves the installation efficiency of the battery pack.

[0035] The top cover 11 includes a top cover body 111 and a first fixing part 112. The first fixing part 112 extends from the top cover body 111 toward a first side. The first fixing part 112 is used to connect with the side shell 13.

[0036] The base plate 12 protrudes towards the first side, forming a protrusion 121 that extends beyond the mounting portion 131. In a direction perpendicular to the protrusion 121, the protrusion 121 extends from one side of the side shell 13 to the other. Specifically, in the left-right direction of the vehicle, the protrusion 121 extends from one side of the side shell 13 to the other. Because the protrusions 121 are continuously arranged, the structural strength of the battery pack is improved.

[0037] The side shell 13 is generally square. The upper end of the mounting part 131 extends toward the first side to form a second fixing part 132. The first fixing part 112 and the second fixing part 132 are fixedly connected by fixing bolts 53. The bolt fixing has high strength and is easy to disassemble and assemble, which is beneficial for the battery pack to be separated from the top cover 11 and the side shell 13 for maintenance in the later stage.

[0038] The shim assembly 20 has a clearance groove 203 on the side facing the first fixing part 112 to allow clearance from the fixing bolt 53. By providing the clearance groove 203, the compactness of the battery pack is improved.

[0039] Please refer to the following: Figures 4 to 6 As shown, the mounting part 131 is provided with a first through hole 133, which is used to allow the plug-in assembly 30 to pass through, so that the plug-in assembly is electrically connected to the internal battery cell. A connecting bracket 136 is provided on the side shell 13 for mounting the battery pack as a whole to the vehicle frame.

[0040] The elevation assembly 20 is fixed to the side shell 13 by bolts. The battery pack includes a first bolt 51 and a second bolt 52. The first bolt 51 passes through the plug assembly 30 and connects to the mounting part 131 via the elevation assembly 20. The bolt fixation has high strength and is easy to disassemble and assemble, which facilitates the separation of the plug assembly 30 from the mounting part 131 for maintenance in the later stages of the battery pack.

[0041] The second bolt 52 is spaced apart from the plug-in assembly 30, and passes through the shim assembly 20 to connect to the mounting part 131. By providing the additional second bolt 52, the shim assembly 20 is further secured, thereby improving the installation strength of the shim assembly 20.

[0042] There can be multiple first bolts 51, arranged in a rectangular interval. Similarly, there can be multiple second bolts 52, also arranged in a rectangular interval. By using multiple bolts, the installation stability of the shim assembly 20 and the plug assembly 30 is enhanced. Only the first bolts 51 or only the second bolts 52 can be arranged in a rectangular interval.

[0043] The shim assembly 20 may be provided with a first positioning hole 201 and a second positioning hole 202. The mounting part 131 is provided with a first nut 134 and a second nut 135. The first nut 134 is fitted with a first bolt 51. The second nut 135 is fitted with a second bolt 52. The first nut 134 and the second nut 135 protrude toward the shim assembly 20. The first nut 134 is fitted into the first positioning hole 201. The second nut 135 is fitted into the second positioning hole 202.

[0044] The first nut 134 and the second nut 135 are protruding and serve a positioning function. By engaging with the corresponding positioning holes, the installation efficiency of the shim assembly 20 is improved. The first nut 134 and the second nut 135 can be rivet nuts. In other embodiments, corresponding threaded holes can be directly provided on the mounting part 131 for bolt connection.

[0045] Please refer to the following: Figure 7 As shown, the elevation assembly 20 includes a seal 21 and an elevation plate 22. The seal 21 is disposed around the first through hole 133. The mounting portion 131 and the elevation plate 22 clamp and fix the seal 21. By providing the seal 21, the connection sealing between the elevation assembly 20 and the mounting portion 131 is improved, ensuring battery safety.

[0046] Please refer to the following: Figure 8 and Figure 9As shown, the seal 21 is provided with a second through hole 211, a first assembly hole 212, and a second assembly hole 213. The shim plate 22 is provided with a third through hole 221, a third assembly hole 222, and a fourth assembly hole 223. The plug-in assembly 30 can extend into the cell space 100 by passing through the third through hole 221, the second through hole 211, and the first through hole 213 in sequence. The clearance groove 203 can be provided on the upper and lower sides of the shim plate 22. The shim plate 22 is also provided with a positioning hole 224 for positioning and installation with the plug-in assembly 30.

[0047] The first assembly hole 212 and the third assembly hole 222 are aligned to form the first positioning hole 201. The second assembly hole 213 and the fourth assembly hole 223 are aligned to form the second positioning hole 202. The first nut 134 is fitted into the first assembly hole 212. The second nut 135 is fitted into the second assembly hole 213. The first bolt 51 passes through the third assembly hole 222 and is connected to the first nut 134. The second bolt 52 passes through the fourth assembly hole 223 and is connected to the second nut 135.

[0048] There are four first assembly holes 212, arranged in a rectangular pattern. There are also four second assembly holes 213, also arranged in a rectangular pattern. The second assembly holes 213 are located closer to the edge of the seal 21 than the first assembly holes 212. The first assembly holes 212 are located closer to the second through hole 211 than the second assembly holes 213. The shortest distance between the second through hole 211 and the second assembly holes 213 is not less than 10mm to ensure a good seal.

[0049] During the tightening of the bolts, the seal 21 deforms to achieve a seal. After installation, the overall thickness of the shim assembly 20 can be 10mm to raise the plug assembly 30 by 10mm. Multiple plug assemblies 30 can be used. Correspondingly, multiple shim assemblies 20 can also be used. The structures of the multiple shim assemblies 20 can be identical or different. The distribution of the first assembly hole 212 and the second assembly hole 213 on the seal 21, and the distribution of the third assembly hole 222 and the fourth assembly hole 223 on the shim plate 22, can be varied according to the installation requirements of the plug assembly 30.

[0050] This application also provides a vehicle including the aforementioned battery pack. Because the installation efficiency of the battery pack is improved, the assembly efficiency of the vehicle is also enhanced. The vehicle described in this application can be an electric vehicle or a hybrid vehicle, and the specific type is not limited.

[0051] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A battery pack, characterized by, include: Housing, elevation assembly, and plug-in assembly; The housing includes an upper cover and a bottom plate disposed opposite each other, and a side shell connecting the upper cover and the bottom plate; The top cover, the bottom plate, and the side shell together form a battery cell space; The side shell includes a mounting portion facing a first side of the battery pack, and the bottom plate protrudes beyond the mounting portion facing the first side; The two sides of the elevation component are respectively abutted and fixed to the mounting part and the plug-in component; the plug-in component extends into the cell space through the elevation component and the mounting part.

2. The battery pack of claim 1, wherein, The mounting portion is provided with a first through hole for the plug-in assembly to pass through; The shim assembly includes a seal and a shim plate; the seal is disposed around the first through hole; the mounting part and the shim plate clamp and fix the seal.

3. The battery pack of claim 1, wherein, The battery pack also includes a first bolt that passes through the plug assembly and connects to the mounting portion via the shim assembly.

4. The battery pack of claim 3, wherein, The battery pack also includes a second bolt spaced apart from the plug-in assembly; the second bolt passes through the shim assembly and connects to the mounting portion.

5. The battery pack of claim 4, wherein, The number of first bolts is multiple, and the multiple first bolts are distributed in a rectangular interval; and / or, the number of second bolts is multiple, and the multiple second bolts are distributed in a rectangular interval.

6. The battery pack of claim 4, wherein, The mounting part is provided with a first nut that cooperates with the first bolt for installation; the first nut protrudes from the mounting part toward the shim assembly, the shim assembly is provided with a first positioning hole, and the first nut is fitted into the first positioning hole; And / or, the mounting part is provided with a second nut that cooperates with the second bolt; the second nut protrudes from the mounting part toward the shim assembly, the shim assembly is provided with a second positioning hole, and the second nut is fitted into the second positioning hole.

7. The battery pack of claim 1, wherein, The upper cover includes an upper cover body and a first fixing part extending from the upper cover body toward a first side; the upper end of the mounting part extends toward the first side to form a second fixing part; the first fixing part and the second fixing part are fixedly connected by fixing bolts.

8. The battery pack of claim 7, wherein, The shim assembly has a clearance groove on the side facing the first fixing part to allow the fixing bolt to pass.

9. The battery pack of claim 1, wherein, The base plate protrudes toward the first side to form a protrusion that extends beyond the mounting portion; in a direction perpendicular to the protrusion, the protrusion extends from one side of the side shell to the other side.

10. A vehicle characterized by comprising: include: The battery pack as described in any one of claims 1-9.

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