Battery pack for vehicle and vehicle

Abstract

The invention discloses a battery pack for a vehicle and the vehicle. The battery pack comprises a shell assembly and a battery module, an installation area and a plurality of limiting pieces surrounding the installation area are arranged in the shell assembly. Each limiting piece extends in the first direction perpendicular to the installation area. When the battery module is installed, the battery module moves along the first direction under the constraint of the limiting pieces so as to be accurately installed in the installation area. Therefore, the installation failure of the battery module is avoided.

Description

Technical Field

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

[0002] New energy vehicles are equipped with battery packs that provide power to the vehicle. A battery pack generally consists of a housing, a cooling plate inside the housing, and multiple battery modules. These battery modules are mounted on the cooling plate for heat dissipation or heating. Typically, thermally conductive adhesive is applied between the battery modules and the cooling plate to improve heat transfer. However, when installing the battery modules within the housing, external forces may cause them to deviate from their mounting area, leading to installation failure. Summary of the Invention

[0003] To address the aforementioned technical problems, a first aspect of this application proposes a battery pack for a vehicle. The battery pack includes: a housing assembly having an internal mounting region and a plurality of limiting members surrounding the mounting region, each limiting member extending along a first direction perpendicular to the mounting region; and a battery module adapted to move along the first direction under the constraint of the plurality of limiting members to be mounted into the mounting region.

[0004] In one embodiment, each limiting member includes: a mounting post connected to a housing assembly; and an end cap formed on the mounting post and having a circumferential sidewall extending parallel to the length direction of the mounting post; the battery module is adapted to abut against the circumferential sidewall of the end cap.

[0005] In one embodiment, each limiting member further includes a resilient flange extending from the circumferential sidewall of the end cap; the battery module is adapted to abut against the flange.

[0006] In one embodiment, the flange extends obliquely from the circumferential sidewall of the end cap relative to a first direction to form a guide ramp for the battery module.

[0007] In one embodiment, a deformation space for the flange is formed between the flange and the circumferential sidewall of the end cap.

[0008] In one embodiment, the end cap is any one of a circle, an ellipse, and a semicircle.

[0009] In one embodiment, each limiting member further includes a limiting arm extending from the circumferential sidewall of the end cap, the limiting arm being adapted to engage with the housing assembly.

[0010] In one embodiment, a plurality of mounting holes are provided on the housing assembly around the mounting area; a plurality of connecting teeth are provided on the circumferential surface of the mounting post of each limiting member, the plurality of connecting teeth being adapted to engage with the corresponding mounting holes.

[0011] In one embodiment, the cross-sectional shape of the mounting column is circular or elliptical.

[0012] In one embodiment, the battery module has a first side and a second side, the first side and the second side being opposite to each other and parallel to a first direction; a first constraint structure is provided on the first side and a second constraint structure is provided on the second side; the first constraint structure and the second constraint structure are respectively adapted to abut against corresponding limiting members, so that the battery module is constrained by the limiting members.

[0013] In one embodiment, the first side has two first edges parallel to a first direction; the first constraint structure includes two first constraint protrusions; the two first constraint protrusions are respectively adjacent to the two first edges and form two corners with the first side, the two corners facing each other; at each of the two corners there are two limiting members, and each limiting member abuts against the first side and the corresponding first constraint protrusion.

[0014] In one embodiment, the second side has two second edges parallel to the first direction; the second constraint structure includes two second constraint protrusions, which are adjacent to the two second edges respectively; each second constraint protrusion abuts against a corresponding limiting member.

[0015] In one embodiment, the housing assembly includes a housing body and a cooling plate disposed within the housing body; a mounting area is formed on the cooling plate, and thermally conductive adhesive is applied to the mounting area; the battery module is adapted to be constrained by a plurality of limiting members to move toward the mounting area in a first direction and to compress the thermally conductive adhesive.

[0016] A second aspect of this application discloses a vehicle. The vehicle includes a battery pack for a vehicle as described above.

[0017] The beneficial effects of this application are as follows: The housing assembly of the battery pack for vehicles in this application is provided with multiple limiting members, which surround the mounting area. When installing the battery module, the battery module is accurately installed into the mounting area under the constraint of these limiting members, thus avoiding battery module installation failure. Attached Figure Description

[0018] With the aid of non-limiting examples of exemplary embodiments of this application, the present application will be further described in a detailed description following with reference to several accompanying drawings. The drawings are not drawn to scale.

[0019] Figure 1 A vehicle according to one embodiment of this application is schematically shown.

[0020] Figure 2 The internal structure of a battery pack for a vehicle according to one embodiment of this application is schematically shown.

[0021] Figure 3 schematically shown Figure 2 Top view.

[0022] Figure 4 The housing assembly is shown schematically.

[0023] Figure 5 A schematic cross-sectional view of the battery pack is shown.

[0024] Figure 6 The first beam is shown schematically.

[0025] Figure 7 The first limiting element is shown schematically.

[0026] Figure 8 The cross-section of the first limiting member is shown schematically.

[0027] Figure 9 The second limiting element is shown schematically.

[0028] Figure 10 The third limiting element is shown schematically.

[0029] Figure 11 The fourth limiting element is shown schematically.

[0030] Figure 12 A battery module is shown schematically.

[0031] List of reference numerals

[0032] 1 vehicle

[0033] 2 battery packs

[0034] 3 housing components

[0035] 31 Cooling Plate

[0036] 311 Installation area 312 Thermal conductive adhesive

[0037] 311a First installation area; 311b Second installation area

[0038] 311c Third installation area 311d Fourth installation area

[0039] 311e Fifth Installation Area; 311f Sixth Installation Area

[0040] 311g seventh installation area, 311h eighth installation area

[0041] 32 Shell Body

[0042] 301 First Space 302 Second Space

[0043] 303 Third Space 304 Fourth Space

[0044] 321 First beam 322 Second beam

[0045] 323 Third beam 324 Fourth beam

[0046] 325 process hole, 326 mounting hole

[0047] 327 mounting hole

[0048] 33 limit components

[0049] 331 First limiting component 332 Second limiting component

[0050] 333 Third limiting component 334 Fourth limiting component

[0051] 34 mounting columns

[0052] 35 end cap 341 connecting tooth

[0053] 351 circumferential sidewall 352 flange

[0054] 353 Deformation Space 354 Straight Line Segment

[0055] 355 arc segment 356 limit arm

[0056] 357 Flip Edge

[0057] 4 battery modules

[0058] 41 First battery module 42 Second battery module

[0059] 43 Third battery module 44 Fourth battery module

[0060] 45 Fifth battery module 46 Sixth battery module

[0061] 47 Seventh Battery Module 48 Eighth Battery Module

[0062] 410 First side surface 411 First constraint structure

[0063] 412 First constraint protrusion 413 Corner

[0064] 414 Fixing hole 415 First edge

[0065] 416 Second Edge

[0066] 420 Second side surface 421 Second constraint structure

[0067] 422 Second constraint protrusion

[0068] X is directed towards Y in the second direction.

[0069] Z is the first direction, and L is the length direction of the mounting post. Detailed Implementation

[0070] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0071] Figure 1 A vehicle 1 according to an embodiment of this application is schematically shown. The vehicle 1 is a new energy vehicle and includes a battery pack 2 (hereinafter simply referred to as battery pack 2) for the vehicle. The battery pack 2 is used to supply power to the electrical components (not shown) of the vehicle 1.

[0072] Battery pack 2 will now be described.

[0073] like Figure 2 and Figure 3 As shown, the battery pack 2 includes a housing assembly 3 and a battery module 4. Combined with... Figure 3 and Figure 4 The housing assembly 3 has multiple mounting areas 311, each of which is used to support the battery module 4. Taking one mounting area 311 as an example, multiple limiting members 33 are provided around the mounting area 311. For example, these limiting members 33 are spaced apart from each other along the circumferential direction of the mounting area 311. Each limiting member 33 extends along a first direction Z that is generally perpendicular to the mounting area 311 (for example, the first direction Z is generally parallel to the height direction of the battery pack 2).

[0074] When the battery module 4 is installed into the mounting area 311, these limiting members 33 abut against the battery module 4 in a direction generally perpendicular to the first direction Z. In this way, the battery module 4 is constrained by these limiting members 33 and can only move towards the mounting area 311 in the first direction Z, thereby enabling the battery module 4 to be accurately installed into the mounting area 311 and preventing the battery module 4 from deviating from the mounting area 311, which would cause the battery module 4 to fail to be installed in the housing assembly 3.

[0075] Furthermore, according to the technical solution of this application, only the limiting member 33 is provided on the housing assembly 3, without any modification to the battery module 4. This simplifies the manufacturing of the battery pack 2 and reduces the manufacturing cost of the battery pack 2.

[0076] like Figure 5 As shown, the housing assembly 3 includes a housing body 32 and a cooling plate 31 disposed within the housing body 32. The mounting area 311 is located on the cooling plate 31 (e.g., ...). Figure 4 As shown in the diagram, thermally conductive adhesive 312 is applied within the mounting area 311. When the battery module 4 is installed into the mounting area 311, the battery module 4 compresses the thermally conductive adhesive 312 to fill the gap between the battery module 4 and the cooling plate 31 as much as possible, thereby improving the heat transfer effect between the battery module 4 and the cooling plate 31. In addition, when the battery module 4 is pressed, it is constrained by multiple limiting members 33, so even if the force on the battery module 4 is slightly unbalanced, it will not slide off the mounting area 311.

[0077] In one embodiment, such as Figure 4 As shown, the main body 32 of the housing is generally rectangular. The cooling plate 31 has multiple generally rectangular mounting areas 311. The battery module 4 is a rectangular shape that matches the mounting areas 311. This allows for the placement of as many battery modules 4 as possible within the main body 32, improving the space utilization of the main body 32. It should be understood that, depending on the actual situation, the main body 32, the mounting areas 311, and the battery modules 4 can also be constructed in other shapes; the number of mounting areas 311 and the number of battery modules 4 can also be adjusted according to the actual situation. For simplicity, only [the following is shown]. Figures 2 to 4 The technical solution of this application is described using the illustrated embodiments as examples.

[0078] For example Figure 4 As shown, the housing body 32 includes a first beam 321, a second beam 322, and a third beam 323 located between the first beam 321 and the second beam 322. The first beam 321, the second beam 322, and the third beam 323 are spaced apart from each other and extend generally parallel to each other. For example, the first beam 321, the second beam 322, and the third beam 323 extend generally along a second direction Y of the housing body 32 (or battery pack 2) (e.g., the second direction Y is generally parallel to the longitudinal direction of the housing body 32). The housing body 32 also includes a fourth beam 324 that intersects the middle of each of the first beam 321, the second beam 322, and the third beam 323. For example, the fourth beam 324 extends generally along a third direction X of the housing body 32 (or battery pack 2) (e.g., the third direction X is generally parallel to the transverse direction of the housing body 32). In this way, the first beam 321, the second beam 322, the third beam 323, and the fourth beam 324 divide the housing body 32 into four spaces, similar to a Cartesian coordinate system, i.e., within the housing body 32. Figure 4 In the middle, there is a first space 301 in the upper right corner, a second space 302 in the upper left corner, a third space 303 in the lower left corner, and a fourth space 304 in the lower right corner.

[0079] Installation area 311 includes a first installation area 311a and a second installation area 311b located within the first space 301, wherein the first installation area 311a is adjacent to the first beam 321, the third beam 323, and the fourth beam 324, and the second installation area 311b is adjacent to the first beam 321, the third beam 323, and the first installation area 311a. Installation area 311 also includes a third installation area 311c and a fourth installation area 311d located within the second space 302, wherein the third installation area 311c is adjacent to the second beam 322, the third beam 323, and the fourth beam 324, and the fourth installation area 311d is adjacent to the second beam 322, the third beam 323, and the third installation area 311c. Installation area 311 also includes a fifth installation area 311e and a sixth installation area 311f located within the third space 303, and a seventh installation area 311g and an eighth installation area 311h located within the fourth space 304. The fifth installation area 311e and the sixth installation area 311f are similar to the third installation area 311c and the fourth installation area 311d, respectively. The seventh installation area 311g and the eighth installation area 311h are similar to the first installation area 311a and the second installation area 311b, respectively. They will not be described in detail here.

[0080] like Figure 3 As shown, the battery module 4 includes a first battery module 41 installed in the first mounting area 311a, a second battery module 42 installed in the second mounting area 311b, a third battery module 43 installed in the third mounting area 311c, a fourth battery module 44 installed in the fourth mounting area 311d, a fifth battery module 45 installed in the fifth mounting area 311e, a sixth battery module 46 installed in the sixth mounting area 311f, a seventh battery module 47 installed in the seventh mounting area 311g, and an eighth battery module 48 installed in the eighth mounting area 311h.

[0081] Multiple limiting members 33 are provided on the first beam 321, the second beam 322, the third beam 323, and the fourth beam 324 to constrain these battery modules. For simplicity, the following description will only take the first battery module 41 located in the first mounting area 311a as an example to describe these limiting members.

[0082] like Figure 12 As shown, the first battery module 41 has a first side 410 and a second side 420 opposite each other along the third direction X. After the first battery module 41 is placed in the first mounting area 311a, both the first side 410 and the second side 420 are generally parallel to the first direction Z (i.e., generally perpendicular to the first mounting area 311a), and the first side 410 is adjacent to the first beam 321, and the second side 420 is adjacent to the third beam 323.

[0083] The first side surface 410 has two first edges 415 parallel to the first direction Z (e.g., the first edges 415 are the height edges of the first battery module 41). Two first constraint protrusions 412 are provided on the first side surface 410. The two first constraint protrusions 412 are adjacent to, for example, the two first edges 415 and extend generally parallel to the first direction Z. The two first constraint protrusions 412 and the first side surface 410 form two corners 413, and the two corners 413 face each other. The two first constraint protrusions 412 form a first constraint structure 411 on the first side surface 410.

[0084] The second side surface 420 also has two second edges 416 parallel to the first direction Z (e.g., the second edges 416 are also the height edges of the first battery module 41). Two second constraint protrusions 422 are provided on the second side surface 420. The two second constraint protrusions 422 are, for example, adjacent to the two second edges 416 and extending parallel to the first direction Z. The two second constraint protrusions 422 form a second constraint structure 421 on the second side surface 420.

[0085] like Figure 3 As shown, a first limiting member 331 and a second limiting member 332 are provided on the first beam 321. The first limiting member 331 and the second limiting member 332 are spaced apart along the second direction Y and are respectively located at two corners 413. In this way, the first limiting member 331 and the second limiting member 332 not only abut against the first side 410, but also abut against the corresponding first constraint protrusion 412. A third limiting member 333 and a fourth limiting member 334 are provided on the third beam 323. The third limiting member 333 and the fourth limiting member 334 are spaced apart along the second direction Y and abut against two second constraint protrusions 422 respectively. In this way, under the constraints of the first limiting member 331, the second limiting member 332, the third limiting member 333 and the fourth limiting member 334, the first battery module 41 cannot move away from the installation area 311 along the third direction X or the second direction Y.

[0086] For example Figure 3 As shown, the constraint methods of the remaining battery modules are similar to those of the first battery module 41, except that the types of positioning components may be different, which will not be described in detail here.

[0087] It should be noted that the multiple limiting members on the third beam 323 are shared by adjacent battery modules (i.e., they abut against adjacent battery modules). For example, the third limiting member 333 on the third beam 323 abuts against both the first battery module 41 and the third battery module 43 simultaneously, thus constraining both modules. Similarly, the fourth limiting member 334 on the third beam 323 abuts against the first battery module 41, the second battery module 42, the third battery module 43, and the fourth battery module 44 simultaneously, thus constraining all four modules. This helps reduce the number of limiting members, thereby lowering the cost of the battery pack 2.

[0088] It should also be understood that after the battery module is positioned in the appropriate mounting area, bolts are used to secure the battery module to the housing assembly. For example, as... Figure 12 As shown, for the first battery module 41, fixing holes 414 are provided in both the two first constraint protrusions 412 and the two second constraint protrusions 422. Assembly holes 327 corresponding to the fixing holes 414 are provided on the first beam 321 and the third beam 323. After the first battery module 41 is positioned in the mounting area 311 under the constraint of the limiting member 33, the fixing holes align with the corresponding assembly holes. Thus, fastening bolts (not shown in the figure) can be installed in the aligned fixing holes and assembly holes to fix the first battery module 41 to the first beam 321 and the third beam 323.

[0089] Figure 6 The structure of the first beam 321 is schematically shown. (As shown) Figure 6 As shown, the first beam 321 itself has multiple process holes 325. For example, some process holes are used for manufacturing the first beam 211, and some process holes are used to assist in the assembly of the housing assembly 3. Some suitable process holes can be used as mounting holes 326 for installing these limiting components or as assembly holes 327 for fixing the battery module, thus eliminating the need to construct additional mounting holes and assembly holes on the first beam 321. This facilitates the manufacturing of the battery pack 2 and avoids adverse effects on the strength of the first beam 321. Of course, additional mounting holes and assembly holes can be provided on the first beam if needed. The same applies to the second beam 322, the third beam 323, and the fourth beam 324.

[0090] It should also be understood that the first limiting member 331, the second limiting member 332, the third limiting member 333, and the fourth limiting member 334 described above are different from each other (this will be described below), that is, the first battery module is constrained by four different limiting members. Of course, depending on the actual situation, only one or more of the first limiting member 331, the second limiting member 332, the third limiting member 333, and the fourth limiting member 334 can be used to constrain the first battery module; even limiting members different from the first limiting member 331, the second limiting member 332, the third limiting member 333, and the fourth limiting member 334 can be used to constrain the first battery module. The same applies to the other battery modules.

[0091] The arrangement of the first limiting member 331, the second limiting member 332, the third limiting member 333, and the fourth limiting member 334 relative to their respective battery modules is determined by the positions of the mounting holes on each beam. When the positions of the mounting holes on the beam change, the positions of these limiting members also change, but they will still constrain the corresponding battery modules.

[0092] Figure 7 and Figure 8 The structure of the first limiting member 331 is schematically shown. The first limiting member 331 includes a mounting post 34 and an end cap 35 located at one end of the mounting post 34. The mounting post 34 extends generally perpendicular to the end cap 35. The end cap 35 is circular and has a circumferential sidewall 351 extending generally parallel to the length direction L of the mounting post 34.

[0093] The mounting post 34 has a circular cross-section, and the mounting hole 326 corresponding to the first limiting member 331 is also circular. This allows the mounting post 34 to be smoothly inserted into the corresponding mounting hole, thus smoothly installing the first limiting member 331. Multiple connecting teeth 341 are provided on the circumferential surface of the mounting post 34. The connecting teeth 341 increase the friction between the mounting post 34 and the sidewall of the mounting hole 326, allowing the first limiting member 331 to be stably installed in the mounting hole 326. In one embodiment, the mounting post 34 (or the first limiting member 331) is made of plastic. When installing the first limiting member 331, the mounting post 34 can be manually pressed into the mounting hole 326 to insert it into the mounting hole 326.

[0094] After the first limiting member 331 is installed in place, the circumferential sidewall 351 of the end cap 35 is at least partially close to the mounting area 311, and may even overlap with a portion of the mounting area 311. In this way, when the battery module 4 is installed, the circumferential sidewall 351 of the end cap 35 can abut against the battery module 4, thereby constraining the battery module 4.

[0095] For example Figure 8As shown, the limiting member 33 also includes an elastic flange 352 extending from the circumferential sidewall 351 of the end cap 35. When the first limiting member 331 is used, at least a portion of the flange 352 is close to the mounting area 311, and may even overlap with a portion of the mounting area 311. Thus, when the battery module 4 is installed, the flange 352 abuts against the battery module 4, and may even be deformed by the pressure of the battery module 4, thereby limiting the position of the battery module 4 by the flange 352 (or the first limiting member 331). In addition, when the flange 352 is pressed by the battery module 4, the deformation of the flange 352 buffers the impact on the first limiting member 331, preventing damage to the first limiting member 331.

[0096] After the first limiting member 331 is installed, the flange 352 extends obliquely from the circumferential sidewall 351 of the end cap 35 toward the mounting area 311. When installing the battery module 4, the obliquely extending flange 352 guides the setting of the battery module 4, which facilitates the installation of the battery module 4.

[0097] For example Figure 8 As shown, a deformation space 353 for the flange 352 exists between the flange 352 and the circumferential sidewall 351 of the end cap 35. In other words, the beginning of the flange 352 is connected to the circumferential sidewall 351 of the end cap 35, while the rest of the flange 352 is spaced apart from the circumferential sidewall 351 of the end cap 35. When the flange 352 is impacted or squeezed by the battery module 4, the flange 352 will bend and deform appropriately toward the circumferential sidewall 351 of the end cap 35 to reduce obstruction to the battery module 4 while maintaining constraint on it, which helps to facilitate the smooth installation of the battery module 4.

[0098] Figure 9 The structure of the second limiting member 332 is schematically shown. The structure of the second limiting member 332 is similar to that of the first limiting member 331; only the main differences between the two are described below. Figure 9 As shown, the end cap 35 of the second limiting member 332 is elliptical, and the cross-section of the mounting post 34 is also elliptical, with the major axis of the end cap 35 being substantially parallel to the major axis of the cross-section of the mounting post 34. Furthermore, the mounting hole corresponding to the second limiting member 332 is also elliptical. This allows the mounting post 34 to be smoothly inserted into the corresponding mounting hole, thus smoothly completing the installation of the second limiting member 332. In addition, this mounting post and mounting hole prevent the second limiting member 332 from rotating and have a foolproof function, ensuring that the second limiting member 332 can be installed correctly, for example, ensuring that the elliptical end cap 35 is close to or partially overlaps with the mounting area 311.

[0099] Figure 10The structure of the third limiting member 333 is schematically shown. The structure of the third limiting member 333 is similar to that of the first limiting member 331; only the main differences between the two are described below. Figure 10 As shown, the end cap 35 of the third limiting member 333 is semi-circular. That is, the circumferential sidewall of the end cap 35 of the third limiting member 333 includes an arc-shaped segment 355 and a straight segment 354, with the straight segment 354 connecting the two ends of the arc-shaped segment 355. When the third limiting member 333 is installed, the straight segment 354 is generally parallel to the third direction X and abuts against the fourth beam 324, which helps to improve the stability of the third limiting member 333. After the battery module is installed, the arc-shaped segment 355 abuts against the adjacent battery module (e.g., the first battery module 41 and the third battery module 43).

[0100] Figure 11 The structure of the fourth limiting member 334 is schematically shown. The structure of the fourth limiting member 334 is similar to that of the first limiting member 331; only the main differences between the two are described below. Figure 11 As shown, the limiting member 33 includes a limiting arm 356 extending from the circumferential sidewall 351 of the end cap 35. After the fourth limiting member 334 is installed, the limiting arm 356 engages with the third beam 323 to prevent the fourth limiting member 334 from rotating, thereby preventing the fourth limiting member 334 from separating from the corresponding battery module. In one embodiment, the free end of the limiting arm 356 is provided with a flange 357, which engages with the third beam 323.

[0101] Of course, the mounting post and end cap of the limiting component can also be constructed into other shapes according to the actual situation, which will not be described here.

[0102] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A battery pack for a vehicle, characterized in that, The battery pack (2) includes: The housing assembly (3) has an internally disposed mounting area (311) and a plurality of limiting members (33) surrounding the mounting area (311), each of the limiting members (33) extending along a first direction (Z) perpendicular to the mounting area (311); and Battery module (4) is adapted to move along the first direction (Z) under the constraint of a plurality of said limiting members (33) to be installed in said mounting area (311).

2. The battery pack according to claim 1, characterized in that, Each of the aforementioned limiting members (33) includes: Mounting post (34) is connected to the housing assembly (3); and An end cap (35) is formed on the mounting post (34) and has a circumferential sidewall (351) extending parallel to the length direction (L) of the mounting post (34); the battery module (4) is adapted to abut against the circumferential sidewall (351) of the end cap (35).

3. The battery pack according to claim 2, characterized in that, Each of the limiting members (33) also includes a resilient flange (352) extending from the circumferential sidewall (351) of the end cap (35); the battery module (4) is adapted to abut against the flange (352).

4. The battery pack according to claim 3, characterized in that, The flange (352) extends obliquely from the circumferential sidewall (351) of the end cap (35) relative to the first direction (Z) to form a guide slope for the battery module (4).

5. The battery pack according to claim 3, characterized in that, A deformation space (353) for the flange (352) is formed between the flange (352) and the circumferential sidewall (351) of the end cap (35).

6. The battery pack according to claim 2, characterized in that, The shape of the end cap (35) is any one of a circle, an ellipse, and a semicircle.

7. The battery pack according to claim 2, characterized in that, Each of the limiting members (33) also includes a limiting arm (356) extending from the circumferential sidewall (351) of the end cap (35), the limiting arm (356) being adapted to engage with the housing assembly (3).

8. The battery pack according to claim 2, characterized in that, A plurality of mounting holes (326) are provided on the housing assembly (3) around the mounting area (311); A plurality of connecting teeth (341) are provided on the circumferential surface of the mounting post (34) of each of the limiting members (33), and the plurality of connecting teeth (341) are adapted to engage with the corresponding mounting holes (326).

9. The battery pack according to claim 2, characterized in that, The cross-sectional shape of the mounting post (34) is circular or elliptical.

10. The battery pack according to claim 1, characterized in that, The battery module (4) has a first side (410) and a second side (420), the first side (410) and the second side (420) being opposite to each other and parallel to the first direction (Z); A first constraint structure (411) is provided on the first side (410), and a second constraint structure (421) is provided on the second side (420); the first constraint structure (411) and the second constraint structure (421) are respectively adapted to abut against the corresponding limiting member (33) so that the battery module (4) is constrained by the limiting member (33).

11. The battery pack according to claim 10, characterized in that, The first side surface (410) has two first edges (415) parallel to the first direction (Z); The first constraint structure (411) includes two first constraint protrusions (412); the two first constraint protrusions (412) are respectively adjacent to the two first edges (415) and respectively form two corners (413) with the first side surface (410), and the two corners (413) face each other; Two limiting members (33) are provided at each of the two corners (413), and each limiting member (33) abuts against the first side (410) and the corresponding first constraint protrusion (412).

12. The battery pack according to claim 10, characterized in that, The second side (420) has two second edges (416) parallel to the first direction (Z); The second constraint structure (421) includes two second constraint protrusions (422), which are adjacent to the two second edges (416) respectively; Each of the second constraint protrusions (422) abuts against the corresponding limiting member (33).

13. The battery pack according to claim 1, characterized in that, The housing assembly (3) includes a housing body (32) and a cooling plate (31) disposed within the housing body (32); the mounting area (311) is formed on the cooling plate (31), and thermally conductive adhesive (312) is applied within the mounting area (311); The battery module (4) is adapted to be constrained by a plurality of the limiting members (33) and move along the first direction (Z) toward the mounting area (311) to compress the thermally conductive adhesive (312).

14. A vehicle, characterized in that, The vehicle (1) includes a battery pack (2) for a vehicle according to any one of claims 1 to 13.

Images