Hanging assembly and battery pack

Abstract

The utility model provides a mounting assembly and a battery pack, the mounting assembly comprises a plurality of mounting beams, and the plurality of mounting beams are arranged at intervals along a first direction; the lining part extends in the first direction, and the length, extending in the first direction, of the lining part is larger than the length, extending in the first direction, of the mounting beam; wherein the lining part is connected to a box body of the battery pack in the first direction, the hanging beam is connected to the lining part, and the hanging beam is connected to the box body.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a mounting component and a battery pack. Background Art

[0002] The battery pack includes a box body, and a mounting component is arranged on the box body of the battery pack used for the new energy electric vehicle, and the battery pack is installed on the new energy electric vehicle through the mounting component.

[0003] In the related art, the battery pack case can be formed by a roll-pressing process, which is beneficial to increase the strength of the battery pack case and reduce the molding cost of the case, while the mounting parts are formed by a stamping process or a roll-pressing process and then fixed to the case by welding. Due to the size limitation of the mounting parts themselves, the strength of the welding connection between the mounting parts and the case is relatively weak, which may cause the mounting parts to loosen during subsequent use. Utility Model Content

[0004] The embodiments of the utility model provide a mounting assembly and a battery pack, which can improve the technical problem of looseness between the mounting assembly and the box body.

[0005] In a first aspect, an embodiment of the present utility model provides a mounting assembly for a battery pack, comprising:

[0006] A plurality of mounting beams, wherein the plurality of mounting beams are arranged at intervals along a first direction;

[0007] A bushing member extending along a first direction, wherein a length of the bushing member extending along the first direction is greater than a length of the mounting beam extending along the first direction;

[0008] Wherein, the liner assembly is connected to the box body of the battery pack along the first direction, the mounting beam is connected to the liner assembly, and the mounting beam is connected to the box body.

[0009] In one embodiment, the mounting beam includes a main body portion and a first bending portion and a second bending portion respectively bent and connected to two ends of the main body portion, and the first bending portion and the second bending portion are respectively connected to the box body.

[0010] In one embodiment, the lining member includes a base portion and a third bending portion and a fourth bending portion connected to two ends of the base portion, and the third bending portion and the fourth bending portion are respectively connected to the box body.

[0011] In one embodiment, the first bending portion, the third bending portion, the fourth bending portion and the second bending portion are sequentially connected to the box body at intervals.

[0012] In one embodiment, the first bending portion includes a first side and a second side that are oppositely arranged, the second bending portion includes a third side and a fourth side that are oppositely arranged, the first side and the second side are respectively connected to the third bending portion, and / or the third side and the fourth side are respectively connected to the fourth bending portion.

[0013] In one embodiment, the first bending portion includes a first bending section, a second bending section and a third bending section connected in sequence, the angle between the first bending section and the main body is A1, the angle between the second bending section and the main body is B1, and the angle between the third bending section and the main body is C1, wherein A1 <B1<C1。

[0014] In one embodiment, the mounting beam is connected to the bushing member along a second direction, the mounting beam is connected to the box body along the first direction, and the second direction is perpendicular to the first direction.

[0015] In one embodiment, the mounting assembly further includes a plurality of sleeve members, the sleeve members are fixed on the mounting beam, and the sleeve members are arranged to pass through the mounting beam; the bushing member includes a plurality of notches, and the notches are used for the sleeve members to pass through.

[0016] In one embodiment, the mounting beam is provided with a hollow inner cavity, and the bushing member is sequentially arranged to pass through the inner cavities of the plurality of mounting beams; the length of the bushing member extending along the first direction is greater than the sum of the lengths of the plurality of mounting beams extending along the first direction.

[0017] In one embodiment, the mounting beam is provided with a first buffer cavity, and the first buffer cavity is configured to be formed by enclosing the bushing, the main body, a part of the first bending portion, and a part of the second bending portion.

[0018] In one embodiment, the lining member is provided with a second buffer cavity, and the second buffer cavity is configured to be formed by enclosing the base portion, a portion of the third bent portion, and a portion of the fourth bent portion.

[0019] In a second aspect, an embodiment of the present utility model provides a battery pack, comprising:

[0020] A box body, the box body comprising a first side plate and a second side plate arranged opposite to each other;

[0021] A mounting assembly, the mounting assembly includes the above-mentioned mounting assembly, the mounting assembly includes a first mounting assembly and a second mounting assembly, the first mounting assembly is arranged on the first side panel, and the second mounting assembly is arranged on the second side panel.

[0022] Beneficial effects of the embodiments of the utility model:

[0023] In an embodiment of the utility model, the mounting assembly includes a plurality of mounting beams and a lining assembly. The lining assembly is further connected to the mounting beam, and the lining assembly is connected to the box body of the battery pack along a first direction. The length of the lining assembly extending along the first direction is greater than the length of the mounting beam extending along the first direction. Therefore, the lining assembly can further form a more stable connection with the box body relative to the mounting beam, thereby improving the bonding strength between the mounting assembly and the box body, and effectively preventing failure of the connection between the mounting assembly and the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a three-dimensional schematic diagram of a partial structure of a box body provided by an embodiment of the utility model from a viewing angle;

[0026] Figure 2 yes Figure 1 A partial enlarged view of

[0027] Figure 3 It is a three-dimensional schematic diagram of a partial structure of a box body from another perspective provided by an embodiment of the utility model;

[0028] Figure 4 yes Figure 3 A partial enlarged view of

[0029] Figure 5 It is a three-dimensional diagram of a mounting beam from one viewing angle provided by an embodiment of the utility model;

[0030] Figure 6 It is a three-dimensional diagram of a mounting beam from another perspective provided by an embodiment of the utility model;

[0031] Figure 7 It is a front view of a mounting beam provided in an embodiment of the utility model;

[0032] Figure 8 It is a three-dimensional diagram of a liner provided by an embodiment of the utility model from one viewing angle;

[0033] Fig. 9 yes Figure 8 A partial enlarged view of

[0034] Fig.10It is a three-dimensional diagram of another viewing angle of the liner provided by the embodiment of the utility model;

[0035] Fig.11 is a side view of a liner provided in an embodiment of the utility model;

[0036] Figure Number:

[0037] 100, mounting assembly; 110, first mounting assembly; 120, second mounting assembly;

[0038] 20. Mounting beam;

[0039] 21, first bending portion; 211, first bending section; 212, second bending section; 213, third bending section;

[0040] 22, second bending portion; 221, fourth bending section; 222, fifth bending section; 223, sixth bending section 243, third side edge; 244, fourth side edge;

[0041] 23. Main body; 241. First side; 242. Second side; 251. First through hole; 252. Second through hole; 26. First buffer cavity; 271. First weld; 272. Second weld;

[0042] 30. Bushing kit;

[0043] 31. third bending portion; 311. seventh bending section; 312. eighth bending section;

[0044] 32. Fourth bending section; 321. Ninth bending section; 322. Tenth bending section;

[0045] 33. base body; 34. second buffer cavity; 35. notch;

[0046] 40. sleeve member; 41. cylindrical portion; 42. first boss;

[0047] 200, box body; 11, first side panel; 12, second side panel; 13, third side panel; 14, fourth side panel; 15, bottom panel; DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. In the utility model, unless otherwise stated, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0049] An embodiment of the utility model provides a battery pack, which includes one or more single cells, and the multiple single cells are connected in series, in parallel or in a mixed connection to provide higher voltage and capacity. The multiple batteries can be arranged in groups to form a battery module. The battery pack generally also includes a box 200 for encapsulating one or more single cells or multiple battery modules. The box 200 can avoid liquid and be isolated from the external environment to maintain the stability of the battery's charge and discharge performance.

[0050] The batteries disposed in the battery pack may include cylindrical batteries, flat batteries, and rectangular batteries, etc., which are not limited in the embodiments of the present invention.

[0051] The battery pack can be used in electrical equipment, which can be a vehicle or an electric tool, wherein the vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle or a hybrid vehicle. The battery pack can be used not only as the operating power source of the vehicle, but also as the driving power source of the vehicle. When used as a driving power source, it can replace or partially replace fuel or natural gas to provide driving power for the vehicle.

[0052] In some embodiments of the present invention, the battery pack includes a box body 200 and a plurality of batteries, the box body 200 is provided with a receiving cavity, and the plurality of batteries are received and fixed in the receiving cavity of the box body 200. Taking a rectangular box body structure as an example, the box body 200 includes an upper cover and a lower box body connected to each other, the lower box body is provided with the receiving cavity, and the upper cover is used to cover the open end of the lower box body. The lower box body includes a plurality of side panels and a bottom plate 15, which enclose the accommodating cavity. The plurality of side panels specifically include a first side panel 11, a second side panel 12, a third side panel 13 and a fourth side panel 14, wherein the first side panel 11 and the second side panel 12 are arranged opposite to each other, the third side panel 13 and the fourth side panel 14 are arranged opposite to each other, both sides of the third side panel 13 are respectively connected to one side of the first side panel 11 and one side of the second side panel 12, both sides of the fourth side panel 14 are respectively connected to the other side of the first side panel 11 and the other side of the second side panel 12, and the bottom plate 15 is further connected to the bottom end of the first side panel 11, the bottom end of the third side panel 13, the bottom end of the second side panel 12 and the bottom end of the fourth side panel 14.

[0053] The metal material used to prepare the box body 200 should have the characteristics of electrical insulation, high heat dissipation and chemical stability. The commonly used molding materials for the box body 200 include steel plates. Furthermore, the battery pack box body 200 is preferably formed by a roll-pressing process, which is beneficial to enhance the strength of the battery pack box body 200 and reduce the molding cost of the box body 200. The roll-pressing process is to continuously bend metal sheets such as coils and strips transversely through multiple forming rollers arranged in sequence to form profiles with specific cross-sections.

[0054] Furthermore, the battery pack also includes a mounting mechanism, which is used to connect the battery pack to the electrical equipment. The mounting mechanism is usually prepared by a stamping process or a rolling process to form a mounting part, and the mounting part is welded on the lower box body. The thickness of the mounting part is 1mm to 2mm. Therefore, after the mounting part with a thin wall thickness is combined with the box body 200 through the welding process, its strength is further reduced, so that the mounting part and the box body 200 may become loose during subsequent use.

[0055] In the embodiment of the present invention, the structure of the mounting mechanism combined with the box body 200 is improved, thereby increasing the strength of the mounting mechanism and the box body 200, thereby ensuring the strength of the mounting mechanism. Figures 1 to 4 As shown, some embodiments of the present invention provide a mounting assembly 100, the mounting assembly 100 comprising a plurality of mounting beams 20, the mounting beams 20 being provided with a hollow inner cavity, and the plurality of mounting beams 20 being spaced apart along a first direction;

[0056] A liner member 30, wherein the liner member 30 extends along a first direction, and a length of the liner member 30 extending along the first direction is greater than a length of the mounting beam 20 extending along the first direction;

[0057] The liner member 30 is connected to the box body 200 of the battery pack, the mounting beam 20 is connected to the liner member 30 , and the mounting beam 20 is also connected to the box body 200 .

[0058] By further connecting the lining member 30 to the mounting beam 20, the lining member 30 is connected to the box body 200 of the battery pack, and the length of the lining member 30 extending along the first direction is greater than the length of the mounting beam 20 extending along the first direction. Therefore, the lining member 30 can form a more stable connection with the box body 200 relative to the mounting beam 20, thereby improving the bonding strength between the mounting assembly 100 and the box body 200, and effectively preventing failure of the connection between the mounting assembly 100 and the box body 200.

[0059] In a further preferred implementation, the lining member 30 is sequentially arranged through the inner cavities of the plurality of mounting beams 20, and the length of the lining member 30 extending along the first direction is greater than the sum of the lengths of the plurality of mounting beams 20 extending along the first direction. When there are a plurality of mounting beams 20, the lining member 30 is sequentially arranged through the inner cavities of the plurality of mounting beams 20, and the length of the lining member 30 extending along the first direction is greater than the sum of the lengths of the plurality of mounting beams 20 extending along the first direction, so that the lining member 30 can form a more stable combination with the box body 200 relative to the plurality of mounting beams 20.

[0060] like Figures 5 to 7 As shown, the mounting beam 20 includes a main body 23 and a first bending portion 21 and a second bending portion 22 respectively bent and connected at both ends of the main body 23. After the first bending portion 21 and the second bending portion 22 are bent, the interval between the first bending portion 21 and the second bending portion 22 defines the inner cavity, and the first bending portion 21 and the second bending portion 22 are both connected to the box body 200.

[0061] Each mounting beam 20 is further connected to the box body 200 through the first bending portion 21 and the second bending portion 22. At the same time, each mounting beam 20 is also connected to the liner member 30. Therefore, the mounting beam 20 in the mounting assembly 100 is double fixed to the box body 200 and the liner member 30, thereby enhancing the bonding strength between the mounting beam 20 and the box body 200.

[0062] Further references Figure 7As shown, the first bending portion 21 includes a first bending segment 211, a second bending segment 212, and a third bending portion 31 that are sequentially connected. The first bending segment 211 is connected to the main body portion 23, and the third bending segment 213 is connected to the box body 200. The included angle between the first bending segment 211 and the main body portion 23 is A1, the included angle between the second bending segment 212 and the main body portion 23 is B1, and the included angle between the third bending segment 213 and the main body portion 23 is C1. A1 < B1 < C1. In one example, A1 is 90°, B1 is greater than 90°, and C1 is 180°.

[0063] Performing multi-segment bending on the two bending portions of the hanging beam 20 in sequence is beneficial to avoiding local stress concentration caused by direct bending of the hanging beam 20.

[0064] The second bending portion 22 has a structure substantially the same as that of the first bending portion 21. The second bending portion 22 includes a fourth bending segment 221, a fifth bending segment 222, and a sixth bending segment 223 that are sequentially connected. The fourth bending segment 221 is connected to the main body portion 23, and the sixth bending segment 223 is connected to the box body 200. The included angle between the fourth bending segment 221 and the main body portion 23 is A2, the included angle between the fifth bending segment 222 and the main body portion 23 is B2, and the included angle between the sixth bending segment 223 and the main body portion 23 is C2. A2 < B2 < C2. In one example, A2 is 90°, B2 is greater than 90°, and C2 is 180°.

[0065] The first bending segment 211 and the fourth bending segment 221 are symmetrically arranged, the second bending segment 212 and the fifth bending segment 222 are symmetrically arranged, the third bending segment 213 and the sixth bending segment 223 are symmetrically arranged, and the interval between the first bending segment 211 and the fourth bending segment 221 is less than the interval between the second bending segment 212 and the fifth bending segment 222. The third bending segment 213 and the sixth bending segment 223 are substantially parallel to the plane where the side plate of the box body 200 is located, which is beneficial to forming a tight fit between the third bending segment 213 and the sixth bending segment 223 and the box body 200.

[0066] As Figures 8 to 11 As shown, the lining kit 30 includes a base portion 33, and a third bending portion 31 and a fourth bending portion 32 that are bent and connected to both ends of the base portion 33. A buffer cavity is formed between the third bending portion 31 and the fourth bending portion 32, and the third bending portion 31 and the fourth bending portion 32 are respectively connected to the box body 200.

[0067] Further referring to Fig.10 and Fig.11As shown, the third bending portion 31 includes a seventh bending segment 311 and an eighth bending segment 312 connected in sequence. The seventh bending segment 311 is connected to the base portion 33, and the eighth bending segment 312 is connected to the box body 200. The included angle between the seventh bending segment 311 and the base portion 33 is A3, and the included angle between the eighth bending segment 312 and the base portion 33 is B3, where A3 < B3. In one example, A3 is 90° and B3 is 180°.

[0068] The fourth bending portion 32 has substantially the same structure as the third bending portion 31. The fourth bending portion 32 includes a ninth bending segment 321 and a tenth bending segment 322 connected in sequence. The ninth bending segment 321 is connected to the base portion 33, and the tenth bending segment 322 is connected to the box body 200. The included angle between the ninth bending segment 321 and the base portion 33 is A4, and the included angle between the tenth bending segment 322 and the base portion 33 is B4, where A4 < B4. In one example, A4 is 90° and B4 is 180°.

[0069] The seventh bending segment 311 and the ninth bending segment 321 are oppositely arranged, and the eighth bending segment 312 and the tenth bending segment 322 are oppositely arranged. The seventh bending segment 311 and the ninth bending segment 321 are substantially parallel and perpendicular to the plane where the side plate of the box body 200 is located. The eighth bending segment 312 and the tenth bending segment 322 are substantially parallel to the plane where the side plate of the box body 200 is located, which is beneficial to forming a tight fit between the eighth bending segment 312 and the tenth bending segment 322 and the box body 200.

[0070] Further, referring to Figure 2 and Figure 4 as shown, the first bending portion 21 includes a first side 241 and a second side 242 arranged oppositely. The second bending portion 22 includes a third side 243 and a fourth side 244 arranged oppositely. The first side 241 and the second side 242 are respectively connected to the third bending portion 31, and the third side 243 and the fourth side 244 are respectively connected to the fourth bending portion 32.

[0071] Specifically, the first bending segment 211 of the first bending portion 21 of each mounting beam 20 is substantially parallel to the seventh bending segment 311 of the third bending portion 31 of the lining kit 30, and the first side 241 and the second side 242 where the first bending segment 211 is located are welded to the seventh bending segment 311. The fourth bending segment 221 of the second bending portion 22 of the mounting beam 20 is substantially parallel to the ninth bending segment 321 of the fourth bending portion 32 of the lining kit 30, and the third side 243 and the fourth side 244 where the fourth bending segment 221 is located are welded to the ninth bending segment 321.

[0072] Furthermore, the mounting beam 20 is connected to the liner member 30 along the second direction, and a first weld 271 is formed between the mounting beam 20 and the liner member 30, and the first weld 271 extends along the second direction. The mounting beam 20 is connected to the box body 200 along the first direction, and a second weld 272 is formed between the mounting beam 20 and the box body 200, and the second weld 272 extends along the first direction. The second direction is perpendicular to the first direction, and the first direction is Figure 3 The X direction is shown in Figure 3 In the Y direction shown in FIG, each mounting beam 20 is fixedly connected in a first direction and a second direction perpendicular to each other, so that each mounting beam 20 can be firmly fixed on the box body 200.

[0073] The third bending section 213 of the first bending portion 21 and the sixth bending section 223 of the second bending portion 22 of each mounting beam 20 are respectively welded to the side panels of the box body 200, and the eighth bending section 312 of the third bending section 31 and the tenth bending section 322 of the fourth bending section 32 of the lining member 30 are respectively welded to the side panels of the box body 200, and the eighth bending section 312 and the tenth bending section 322 are located between the third bending section 213 and the sixth bending section 223. Specifically, the third bending section 213, the eighth bending section 312, the tenth bending section 322 and the sixth bending section 223 are welded to the side panels of the box body 200 in sequence.

[0074] The interval between the first bending portion 21 and the second bending portion 22 of the mounting beam 20 defines a first buffer cavity 26 which is open laterally. Figure 4 As shown, the first buffer cavity 26 is configured to be surrounded by the base portion 33 of the lining member 30 , the main body portion 23 of the mounting beam 20 , a portion of the first bending portion 21 , and a portion of the second bending portion 22 .

[0075] The interval between the third bend portion 31 and the fourth bend portion 32 of the lining member 30 defines a second buffer cavity 34 which is open laterally. Figure 4 As shown, the second buffer cavity 34 is configured to be surrounded by the base portion 33 of the lining member 30 , a portion of the third bent portion 31 , and a portion of the fourth bent portion 32 .

[0076] The first buffer cavity 26 and the second buffer cavity 34 are provided to provide a buffering effect for the vehicle. When the vehicle is hit or shaken, the first bending portion 21 and the second bending portion 22 of the mounting beam 20 can bend toward the inside of the first buffer cavity 26 respectively, and the third bending portion 31 and the fourth bending portion 32 of the bushing member 30 can bend toward the inside of the second buffer cavity 34 respectively.

[0077] Further references Figure 2 and Figure 5As shown, the box 200 mounting assembly 100 further includes a plurality of sleeve members 40, each of which is fixed on one of the mounting beams 20, and the sleeve member 40 is arranged to penetrate the inner cavity of the mounting beam 20. The sleeve member 40 is arranged to penetrate the inner cavity of the mounting beam 20 along a third direction, wherein the third direction is arranged Figure 3 As shown in the Z direction, the third direction is further arranged perpendicularly to the first direction and the second direction.

[0078] The sleeve member 40 is used to further fix the mounting beam 20 and the bushing member 30, see Figure 8 and Fig. 9 As shown, a plurality of notches 35 are further provided on the lining member 30 , and one notch 35 is used for one lining member 30 to pass through, wherein the notch 35 is provided through the lining member 30 .

[0079] A first through hole 251 is provided on the first bending portion 21 of each mounting beam 20, and a second through hole 252 is provided on the second bending portion 22, and the first through hole 251 and the second through hole 252 are arranged opposite to each other. The sleeve member 40 passes through the first through hole 251, the notch 35 on the bushing member 30 and the second through hole 252 in sequence, and the sleeve member 40 includes a cylindrical portion 41, a first boss 42 connected to one end of the cylindrical portion 41, and a second boss (not shown) connected to the other end of the sleeve portion, wherein the first boss 42 abuts against the first bending portion 21, and the second boss abuts against the second bending portion 22.

[0080] refer to Figure 3 As shown, the mounting assembly 100 includes a first mounting assembly 110 and a second mounting assembly 120 , wherein the first mounting assembly 110 is disposed on the first side plate 11 , and the second mounting assembly 120 is disposed on the second side plate 12 , wherein the first side plate 11 and the second side plate 12 are disposed opposite to each other.

[0081] The above is a detailed introduction to the embodiments of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for technicians in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A mounting assembly for a battery pack, characterized in that: include: A plurality of mounting beams, wherein the plurality of mounting beams are arranged at intervals along a first direction; A bushing member extending along a first direction, wherein a length of the bushing member extending along the first direction is greater than a length of the mounting beam extending along the first direction; Wherein, the liner member is connected to the box body of the battery pack along the first direction, the mounting beam is connected to the liner member, and the mounting beam is connected to the box body; The mounting beam includes a main body portion and a first bending portion and a second bending portion respectively bent and connected to two ends of the main body portion, and the first bending portion and the second bending portion are respectively connected to the box body.

2. The mounting assembly according to claim 1, characterized in that: The lining member includes a base portion and a third bending portion and a fourth bending portion connected to two ends of the base portion, and the third bending portion and the fourth bending portion are respectively connected to the box body.

3. The mounting assembly according to claim 2, characterized in that: The first bending portion, the third bending portion, the fourth bending portion and the second bending portion are sequentially connected to the box body at intervals.

4. The mounting assembly according to claim 2, characterized in that: The first bending portion includes a first side and a second side that are oppositely arranged, and the second bending portion includes a third side and a fourth side that are oppositely arranged, the first side and the second side are respectively connected to the third bending portion, and / or the third side and the fourth side are respectively connected to the fourth bending portion.

5. The mounting assembly according to claim 1, characterized in that: The first bending portion includes a first bending section, a second bending section and a third bending section connected in sequence, the angle between the first bending section and the main body is A1, the angle between the second bending section and the main body is B1, and the angle between the third bending section and the main body is C1, wherein A1 <B1<C1。 6. The mounting assembly according to any one of claims 1 to 5, characterized in that: The mounting beam is connected to the liner member along a second direction, and the mounting beam is connected to the box body along the first direction, and the second direction is arranged perpendicular to the first direction.

7. The mounting assembly according to any one of claims 1 to 5, characterized in that: The mounting assembly also includes a plurality of sleeve members, the sleeve members are fixed on the mounting beam, and the sleeve members are arranged to penetrate the mounting beam; the bushing member includes a plurality of notches, and the notches are used for the sleeve members to pass through.

8. The mounting assembly according to any one of claims 1 to 5, characterized in that: The mounting beam is provided with a hollow inner cavity, and the bushing member is sequentially arranged to pass through the inner cavities of the plurality of mounting beams; the length of the bushing member extending along the first direction is greater than the sum of the lengths of the plurality of mounting beams extending along the first direction.

9. The mounting assembly according to claim 1, characterized in that: The mounting beam is provided with a first buffer cavity, and the first buffer cavity is configured to be formed by enclosing the lining member, the main body, a part of the first bending portion, and a part of the second bending portion.

10. The mounting assembly according to claim 2, characterized in that: The lining member is provided with a second buffer cavity, and the second buffer cavity is configured to be formed by enclosing the base portion, a part of the third bent portion, and a part of the fourth bent portion.

11. A battery pack, characterized in that: include: A box body, the box body comprising a first side plate and a second side plate arranged opposite to each other; A mounting assembly, wherein the mounting assembly comprises the mounting assembly described in any one of claims 1-10, wherein the mounting assembly comprises a first mounting assembly and a second mounting assembly, wherein the first mounting assembly is arranged on the first side panel, and the second mounting assembly is arranged on the second side panel.

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