Battery pack mounting structure, battery pack assembly and vehicle

Abstract

The utility model provides a battery pack mounting structure, a battery pack assembly and a vehicle, and the battery pack mounting structure comprises a sleeve which is used for being connected to an edge beam of a battery pack and is provided with a first thread; the bottom of the reducing sleeve is provided with a second thread, the second thread is in threaded connection with the first thread, the middle of the reducing sleeve is provided with a binding face, the binding face abuts against the top face of the sleeve, and the surface, away from the sleeve, of the reducing sleeve is used for abutting against the automobile body; and the fastener sequentially penetrates through the edge beam, the sleeve and the reducing sleeve. According to the battery pack mounting structure provided by the embodiment of the utility model, the height between the boundary beam and the vehicle body can be adjusted by adjusting the height of the reducing sleeve so as to adapt to different mounting heights of the battery pack, so that the battery pack mounting structure can adapt to the mounting scene of the vehicle body of a vehicle type with the same battery pack and different vehicle heights.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a battery pack mounting structure, a battery pack assembly and a vehicle. Background Art

[0002] Electric vehicles are equipped with battery packs, which are usually mounted on the body of the electric vehicle.

[0003] At present, the mounting structure connecting the battery pack to the vehicle body usually includes bolts. However, for the installation scenario of the vehicle body with the same battery pack but different vehicle heights, the installation height of the battery pack is different, and the existing mounting structure cannot adapt. Utility Model Content

[0004] In view of this, the utility model aims to propose a battery pack mounting structure to at least solve the technical problem in the prior art that the mounting structure cannot adapt to the installation scenario of the vehicle body of a vehicle with the same battery pack but different vehicle heights.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A battery pack mounting structure, comprising:

[0007] A sleeve, used to be connected to a side beam of the battery pack, wherein the sleeve is provided with a first thread;

[0008] An adapter sleeve, wherein a second thread is provided at the bottom of the adapter sleeve, the second thread is threadably connected to the first thread, a fitting surface is provided at the middle of the adapter sleeve, the fitting surface is tightly fitted with the top surface of the sleeve, and a surface of the adapter sleeve away from the sleeve is used to abut against the vehicle body;

[0009] The fastener passes through the side beam, the sleeve and the adapter sleeve in sequence.

[0010] Optionally, the sleeve includes a first sleeve portion, and the first thread is an external thread provided on the first sleeve portion;

[0011] The adapter sleeve is provided with a first through hole and a mounting groove connected to the first through hole, the second thread is an internal thread arranged on the side wall of the mounting groove, the fitting surface is the bottom wall of the mounting groove, and the first sleeve portion extends into the mounting groove.

[0012] Optionally, the adapter sleeve has a bottom surface away from the first through hole, the bottom surface of the adapter sleeve is used to cooperate with the side beam gap, and the gap between the bottom surface of the adapter sleeve and the side beam is greater than or equal to zero.

[0013] Optionally, the height of the adapter sleeve is greater than or equal to 10 mm and less than or equal to 30 mm.

[0014] Optionally, the adapter sleeve includes a main body and a tightening portion connected to the main body, the mounting groove is provided on the main body, and a cross-sectional dimension of the tightening portion is smaller than a cross-sectional dimension of the main body.

[0015] Optionally, the main body has a first step surface close to the tightening portion, and an edge of the first step surface is provided with an oblique chamfer;

[0016] The outer edge of the tightening portion is in a hexagonal shape.

[0017] Optionally, along the height direction of the adapter sleeve, the cross-sectional dimension of the adapter sleeve remains unchanged.

[0018] Optionally, the sleeve further comprises a second sleeve portion connected to the first sleeve portion, the second sleeve portion being used to extend into the side beam and to abut against a mounting plate having a mounting through hole in the side beam;

[0019] An anti-rotation groove is formed at one end of the second sleeve portion away from the first sleeve portion, and the anti-rotation groove is used to cooperate with the anti-rotation protrusion on the side beam.

[0020] Compared with the prior art, the battery pack mounting structure described in the utility model has the following advantages:

[0021] The battery pack mounting structure provided by the embodiment of the utility model can adjust the height between the side beam and the vehicle body by adjusting the height of the adapter sleeve to adapt to different installation heights of the battery pack, so as to adapt to the installation scenarios of the vehicle bodies of vehicles with the same battery pack but different vehicle heights, thereby reducing the number of battery packs developed and reducing development investment. In addition, the adapter sleeve is threadedly connected to the sleeve, and by tightening the adapter sleeve, the fitting surface in the adapter sleeve can be tightly fitted with the top surface of the sleeve to ensure that the adapter sleeve and the sleeve are completely fitted, thereby preventing the fastener from loosening, thereby preventing the fastener torque from being excessively attenuated, that is, preventing the battery pack mounting bolt torque from being excessively attenuated, avoiding the risk of excessive fastener torque attenuation caused by incomplete fit between the adapter sleeve and the sleeve, thereby preventing the fixing effect of the battery pack from being affected.

[0022] Another object of the present invention is to provide a battery pack assembly to solve at least the technical problem in the prior art that the mounting structure cannot adapt to the installation scenario of the vehicle body of a vehicle with the same battery pack but different vehicle heights.

[0023] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0024] A battery pack assembly comprises a battery pack and at least one battery pack mounting structure as described above, wherein a sleeve in the battery pack mounting structure is connected to a side beam in the battery pack.

[0025] The advantages of the battery pack and the above-mentioned battery pack mounting structure over the prior art are the same and will not be elaborated here.

[0026] Another object of the present invention is to provide a vehicle to at least solve the technical problem in the prior art that the mounting structure in the vehicle cannot adapt to the installation scenario of the vehicle body of a vehicle with the same battery pack but different vehicle heights.

[0027] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0028] A vehicle comprises a vehicle body and a battery pack assembly as described in any one of the above, wherein the battery pack is connected to the vehicle body via a battery pack mounting structure.

[0029] The advantages of the vehicle and the above-mentioned battery pack assembly over the prior art are the same and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0031] Figure 1 A schematic diagram of the structure of the battery pack mounting structure, the side beam and the vehicle body provided in the first embodiment of the present utility model;

[0032] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0033] Figure 3 for Figure 2 A schematic cross-sectional view of the middle BB;

[0034] Figure 4 A schematic diagram of the exploded structure of the battery pack mounting structure, side beams, and vehicle body provided in the first embodiment of the utility model;

[0035] Figure 5 for Figure 4 The enlarged schematic diagram of the center C;

[0036] Figure 6 for Figure 5 Schematic cross-sectional view of the middle DD;

[0037] Figure 7 A schematic diagram of the structure of an adapter sleeve in a battery pack mounting structure provided in Embodiment 1 of the present utility model;

[0038] Figure 8 A schematic diagram of the structure of a sleeve in a battery pack mounting structure provided in Embodiment 1 of the present utility model;

[0039] Fig. 9 A schematic diagram of the exploded structure of the battery pack mounting structure, side beams, and vehicle body provided in the second embodiment of the utility model;

[0040] Fig.10 for Fig. 9 Schematic cross-sectional view of EE.

[0041] Description of reference numerals:

[0042] 1-sleeve, 11-first sleeve portion, 111-first thread, 112-second step surface, 12-second sleeve portion, 121-anti-rotation groove, 13-second through hole, 2-adapter sleeve, 21-mounting groove, 22-first through hole, 23-second thread, 24-fitting surface, 25-main body, 251-first step surface, 252-bevel chamfer, 26-tightening portion, 3-fastener, 4-side beam, 41-upper plate, 411-connecting surface, 42-mounting plate, 421-mounting through hole, 43-lower plate, 431-third through hole, 44-anti-rotation protrusion, 5-body, 51-mounting beam, 52-body nut. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0044] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] At present, the mounting structure connecting the battery pack and the vehicle body usually includes bolts. However, for the installation scenario of the vehicle body with the same battery pack but different vehicle heights, the installation height of the battery pack is different, and the existing mounting structure cannot be adapted. In order to solve the above problems, the present application proposes a battery pack mounting structure, a battery pack assembly and a vehicle. The above-mentioned battery pack mounting structure, battery pack assembly and vehicle are described in detail below.

[0046] In a first aspect, an embodiment of the utility model provides a battery pack mounting structure, and the battery pack mounting structure has the following embodiments.

[0047] Embodiment 1

[0048] Reference Figures 1 to 8 The battery pack mounting structure includes: a sleeve 1, which is used to be connected to the side beam 4 of the battery pack, and a first thread 111 is provided on the sleeve 1; an adapter sleeve 2, a second thread 23 is provided at the bottom of the adapter sleeve 2, and the second thread 23 is threadedly connected to the first thread 111, and the middle part of the adapter sleeve 2 has a fitting surface 24, and the fitting surface 24 is tightly fitted with the top surface of the sleeve 1, and the surface of the adapter sleeve 2 away from the sleeve 1 is used to abut the vehicle body 5; a fastener 3, which passes through the mounting through hole 421 in the side beam 4, the sleeve 1 and the adapter sleeve 2 in sequence.

[0049] Among them, the battery pack mounting structure is used to install the battery pack on the vehicle body 5. The connection method between the sleeve 1 and the side beam 4 can be bonding or welding. The side beam 4 has a connecting surface 411, and the sleeve 1 is preferably bonded to the connecting surface 411. The side beam 4 includes an upper plate 41, a mounting plate 42 and a lower plate 43 arranged in sequence from top to bottom, and the connecting surface 411 is the surface of the upper plate 41 away from the mounting plate 42. The sleeve 1 can be a T-shaped sleeve, and part of the sleeve 1 extends into the side beam 4. The upper plate 41 of the side beam 4 is provided with a through hole for the sleeve 1 to extend into. The upper plate 41 can be connected to the mounting plate 42 through a vertical plate.

[0050] The fastener 3 may be a bolt. The fastener 3 has a stem and a head, and the stem of the fastener 3 passes through the sleeve 1 and the adapter sleeve 2. A mounting through hole 421 is provided on the mounting plate 42 of the side beam 4, and the mounting through hole 421 is used for the stem of the fastener 3 to pass through. A third through hole 431 is provided on the lower plate 43 of the side beam 4, and the position of the third through hole 431 corresponds to the position of the mounting through hole 421. The third through hole 431 is located below the mounting through hole 421, and the size of the third through hole 431 is larger than the size of the mounting through hole 421. The third through hole 431 is used for the entire fastener 3 to pass through, so that the head of the fastener 3 passes through the lower plate 43 and abuts against the mounting plate 42. The fastener 3 specifically passes through the mounting through hole 421, the sleeve 1 and the adapter sleeve 2 on the side beam 4 in sequence.

[0051] In one embodiment, the first thread 111 is an external thread, and the second thread 23 is an internal thread. In this case, a groove is provided on the adapter sleeve 2 to set the internal thread. In another embodiment, the first thread 111 is an internal thread, and the second thread 23 is an external thread. In this case, a groove is provided on the sleeve 1 to set the internal thread. The adapter sleeve 2 and the sleeve 1 are combined together by threaded connection.

[0052] When assembling the battery pack mounting structure, the sleeve 1 can be first connected to the side beam 4, and then the adapter sleeve 2 can be threadedly connected to the sleeve 1, and the adapter sleeve 2 can be tightened so that the fitting surface 24 in the adapter sleeve 2 fits tightly against the top surface of the sleeve 1, and finally the fastener 3 is assembled.

[0053] The battery pack mounting structure provided by the embodiment of the utility model can adjust the height between the side beam 4 and the vehicle body 5 by adjusting the height of the adapter sleeve 2 to adapt to different installation heights of the battery pack, so as to adapt to the installation scenarios of the vehicle bodies of vehicles with the same battery pack but different vehicle heights, thereby reducing the number of battery packs developed and reducing development investment. Among them, the vehicle bodies with different vehicle heights can be SUVs (Sport Utility Vehicles), sedans, MPVs (Multi-Purpose Vehicles), and other models.

[0054] After the adapter sleeve 2 is introduced, if the adapter sleeve 2 and the sleeve 1 are not completely fitted together, there will be a risk of excessive torque attenuation of the fastener 3. In the embodiment of the utility model, the adapter sleeve 2 is threadedly connected to the sleeve 1. By tightening the adapter sleeve 2, the fitting surface 24 in the adapter sleeve 2 can be tightly fitted with the top surface of the sleeve 1 to ensure that the adapter sleeve 2 and the sleeve 1 are completely fitted together, thereby preventing the fastener 3 from loosening, and further preventing the fastener 3 from excessive torque attenuation, that is, preventing the battery pack mounting bolt torque from excessive attenuation, avoiding the risk of excessive torque attenuation of the fastener 3 due to the incomplete fit between the adapter sleeve 2 and the sleeve 1, and thus avoiding the fixing effect of the battery pack from being affected.

[0055] In a preferred embodiment of the present invention, referring to Figure 6 The sleeve 1 includes a first sleeve portion 11, and the first thread 111 is an external thread arranged on the first sleeve portion 11; the adapter sleeve 2 is provided with a first through hole 22 and a mounting groove 21 connected to the first through hole 22, the second thread 23 is an internal thread arranged on the side wall of the mounting groove 21, the fitting surface 24 is the bottom wall of the mounting groove 21, and the first sleeve portion 11 extends into the mounting groove 21.

[0056] The first sleeve portion 11 is the portion of the sleeve 1 that does not extend into the side beam 4. The first through hole 22 is used for the fastener 3 to pass through, and the mounting groove 21 is used to accommodate the first sleeve portion 11. The shape of the first through hole 22 can be circular, and the mounting groove 21 can be a circular groove. The external thread on the first sleeve portion 11 is threadedly connected with the internal thread on the side wall of the mounting groove 21, ensuring a stable connection between the sleeve 1 and the adapter sleeve 2.

[0057] In a preferred embodiment of the present invention, the adapter sleeve 2 has a bottom surface away from the first through hole 22, the bottom surface of the adapter sleeve 2 is used to fit with the side beam 4, and the gap between the bottom surface of the adapter sleeve 2 and the side beam 4 is greater than or equal to zero.

[0058] Among them, the height of the adapter sleeve 2 needs to be designed according to a negative tolerance to ensure that the gap between the bottom surface of the adapter sleeve 2 and the side beam 4 is greater than or equal to zero. The bottom surface of the adapter sleeve 2 is specifically used to match the gap with the connecting surface 411 of the side beam 4, and the gap between the bottom surface of the adapter sleeve 2 and the connecting surface 411 of the side beam 4 is greater than or equal to zero. If there is no appropriate gap, the bottom surface of the adapter sleeve 2 may be pressed against the side beam 4 too early, resulting in the adapter sleeve 2 being unable to be completely tightened. In this embodiment, by setting the gap between the bottom surface of the adapter sleeve 2 and the side beam 4 to be greater than or equal to zero, it is possible to ensure that the fitting surface 24 of the adapter sleeve 2 is pressed against the top surface of the sleeve 1, thereby avoiding the adapter sleeve 2 being unable to continue to be tightened due to the bottom surface of the adapter sleeve 2 pressing against the side beam 4.

[0059] In a preferred embodiment of the utility model, the height of the adapter sleeve 2 is greater than or equal to 10 mm and less than or equal to 30 mm. The height of the adapter sleeve 2 can be 10 mm, 12 mm, 15 mm, 20 mm, 25 mm, 30 mm, etc. The height of the adapter sleeve 2 is preferably 10 mm-20 mm. When the height of the adapter sleeve 2 is within the above range, it can adapt to different installation heights of the battery pack, so that it can adapt to the installation scenarios of the vehicle body of a vehicle with the same battery pack but different vehicle heights, thereby reducing the number of battery packs developed and reducing development investment.

[0060] In a preferred embodiment of the present invention, referring to Figure 7 The adapter sleeve 2 includes a main body 25 and a tightening portion 26 connected to the main body 25 . The mounting groove 21 is provided on the main body 25 . The cross-sectional dimension of the tightening portion 26 is smaller than the cross-sectional dimension of the main body 25 .

[0061] Among them, the cross-section of the tightening part 26 is a cross-section perpendicular to the height direction of the adapter sleeve 2, and the cross-section of the main body 25 is a cross-section perpendicular to the height direction of the adapter sleeve 2. The height of the main body 25 is greater than the depth of the mounting groove 21. The shape of the outer edge of the main body 25 can be circular. Since the mounting groove 21 is provided on the main body 25, the cross-sectional dimension of the main body 25 is relatively large. The mounting groove 21 is not provided on the tightening part 26, so the cross-sectional dimension of the tightening part 26 can be reduced accordingly to reduce the weight of the adapter sleeve 2, which is conducive to lightweighting.

[0062] In a preferred embodiment of the present invention, referring to Figure 7 The main body 25 has a first step surface 251 close to the tightening portion 26, and the edge of the first step surface 251 is provided with an oblique chamfer 252; the outer edge of the tightening portion 26 is in the shape of a hexagon.

[0063] When the outer edge of the tightening portion 26 is hexagonal, it can be adapted to tightening tools such as manual wrenches and electric wrenches, so that the adapter sleeve 2 can be tightened by the tightening tools to ensure the tightening effect of the adapter sleeve 2. The setting of the chamfer 252 is conducive to the discharge of water accumulated on the first step surface 251 of the main body 25.

[0064] In a preferred embodiment of the present invention, referring to Figure 8 The sleeve 1 also includes a second sleeve portion 12 connected to the first sleeve portion 11, the second sleeve portion 12 is used to extend into the side beam 4, and is used to abut against the mounting plate 42 with a mounting through hole 421 in the side beam 4; the second sleeve portion 12 is provided with an anti-rotation groove 121 at one end away from the first sleeve portion 11, and the anti-rotation groove 121 is used to cooperate with the anti-rotation protrusion 44 on the side beam 4.

[0065] Among them, a second through hole 13 is provided on the sleeve 1, and the second through hole 13 passes through the first sleeve part 11 and the second sleeve part 12. The first sleeve part 11 has a second step surface 112 close to the second sleeve part 12, and the second step surface 112 is preferably bonded to the connecting surface 411. The cross-sectional dimension of the second sleeve part 12 is smaller than the cross-sectional dimension of the first sleeve part 11. The number of anti-rotation grooves 121 provided on the sleeve 1 can be set according to actual needs, such as one, two, three, etc. An anti-rotation protrusion 44 for cooperating with the anti-rotation groove 121 is provided on the side beam 4, and the anti-rotation protrusion 44 protrudes from the mounting plate 42 toward the upper plate 41. The sleeve 1 can be prevented from rotating by cooperating with the anti-rotation groove 121 and the anti-rotation protrusion 44.

[0066] Embodiment 2

[0067] Reference Fig. 9 and Fig.10 The difference between the second embodiment and the first embodiment is that the cross-sectional dimension of the adapter sleeve 2 remains unchanged along the height direction of the adapter sleeve 2. The shape of the outer edge of the adapter sleeve 2 is a hexagon. The other structures of the second embodiment are the same as those of the first embodiment.

[0068] It can be understood that the above examples are merely examples listed for a better understanding of the technical solutions of the embodiments of the present utility model, and are not intended to be the sole limitation on the embodiments of the present utility model.

[0069] In a second aspect, the utility model provides a battery pack assembly, which includes a battery pack and at least one battery pack mounting structure of any one of the first aspects, wherein the sleeve 1 in the battery pack mounting structure is connected to a side beam 4 in the battery pack.

[0070] The battery pack includes a side beam 4, and the number of battery pack mounting structures connected to one side beam 4 can be set according to actual needs, such as four, five, six, seven, etc. Multiple battery pack mounting structures are arranged at intervals along the length direction of the side beam 4. The side beam 4 is provided with an anti-rotation protrusion 44 for matching with the anti-rotation groove 121, and the anti-rotation protrusion 44 protrudes from the mounting plate 42 toward the upper plate 41.

[0071] The connection between the sleeve 1 and the side beam 4 can be bonding or welding. The side beam 4 has a connection surface 411, and the sleeve 1 is preferably bonded to the connection surface 411. The side beam 4 includes an upper plate 41, a mounting plate 42 and a lower plate 43 arranged in sequence from top to bottom, and the connection surface 411 is the surface of the upper plate 41 away from the mounting plate 42. A through hole for the sleeve 1 to extend is provided on the upper plate 41 of the side beam 4. A mounting through hole 421 is provided on the mounting plate 42 of the side beam 4, and the mounting through hole 421 is used for the rod of the fastener 3 to pass through. A third through hole 431 is provided on the lower plate 43 of the side beam 4, and the position of the third through hole 431 corresponds to the position of the mounting through hole 421. The third through hole 431 is located below the mounting through hole 421, and the size of the third through hole 431 is larger than the size of the mounting through hole 421. The third through hole 431 is used for the entire fastener 3 to pass through, so that the head of the fastener 3 passes through the lower plate 43 and abuts against the mounting plate 42.

[0072] The battery pack also includes multiple battery cells, which can be connected in series, in parallel, or in mixed connection. Mixed connection means that multiple battery cells are connected in series and in parallel. The battery cells can be lithium-ion batteries, lithium-sulfur batteries, nickel-hydrogen batteries, etc., but are not limited thereto.

[0073] Since the battery pack includes the battery pack mounting structure, it also has the beneficial effects of the battery pack mounting structure. The battery pack provided by the embodiment of the utility model includes the various structures of the battery pack mounting structure in any of the above embodiments, which will not be described here to avoid repetition.

[0074] In a third aspect, the utility model provides a vehicle comprising a vehicle body and a battery pack assembly according to any one of the second aspects above, wherein the battery pack is connected to the vehicle body via a battery pack mounting structure.

[0075] The vehicle body 5 includes a mounting beam 51 and a vehicle body nut 52 disposed on the mounting beam 51, the vehicle body nut 52 is threadedly connected to the fastener 3, and the vehicle body nut 52 can be welded or riveted to the mounting beam 51. The vehicle can be a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle, an extended-range vehicle, etc. The battery pack is used to power the vehicle, and the battery pack can be used as an operating power source for the vehicle, and can also be used as a driving power source for the vehicle.

[0076] Since the vehicle includes the above-mentioned battery pack assembly, it also has the beneficial effects of the above-mentioned battery pack assembly. The vehicle provided by the embodiment of the utility model includes the various structures of the battery pack assembly in any of the above-mentioned embodiments, which will not be described here in order to avoid repetition.

[0077] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0078] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the above elements.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery pack mounting structure, characterized in that: include: A sleeve, used to be connected to a side beam of the battery pack, wherein the sleeve is provided with a first thread; An adapter sleeve, wherein a second thread is provided at the bottom of the adapter sleeve, the second thread is threadably connected to the first thread, a fitting surface is provided at the middle of the adapter sleeve, the fitting surface is tightly fitted with the top surface of the sleeve, and a surface of the adapter sleeve away from the sleeve is used to abut against the vehicle body; The fastener passes through the side beam, the sleeve and the adapter sleeve in sequence.

2. The battery pack mounting structure according to claim 1, characterized in that: The sleeve comprises a first sleeve portion, and the first thread is an external thread provided on the first sleeve portion; The adapter sleeve is provided with a first through hole and a mounting groove connected to the first through hole, the second thread is an internal thread arranged on the side wall of the mounting groove, the fitting surface is the bottom wall of the mounting groove, and the first sleeve portion extends into the mounting groove.

3. The battery pack mounting structure according to claim 2, characterized in that: The adapter sleeve has a bottom surface away from the first through hole, the bottom surface of the adapter sleeve is used to match the gap of the side beam, and the gap between the bottom surface of the adapter sleeve and the side beam is greater than or equal to zero.

4. The battery pack mounting structure according to any one of claims 1 to 3, characterized in that: The height of the adapter sleeve is greater than or equal to 10 mm and less than or equal to 30 mm.

5. The battery pack mounting structure according to claim 2, characterized in that: The adapter sleeve comprises a main body and a tightening portion connected to the main body, the mounting groove is arranged on the main body, and the cross-sectional dimension of the tightening portion is smaller than the cross-sectional dimension of the main body.

6. The battery pack mounting structure according to claim 5, characterized in that: The main body has a first step surface close to the tightening portion, and the edge of the first step surface is provided with an oblique chamfer; The outer edge of the tightening portion is in a hexagonal shape.

7. The battery pack mounting structure according to any one of claims 1 to 3, characterized in that: Along the height direction of the adapter sleeve, the cross-sectional dimension of the adapter sleeve remains unchanged.

8. The battery pack mounting structure according to claim 2, characterized in that: The sleeve further comprises a second sleeve portion connected to the first sleeve portion, the second sleeve portion being used to extend into the side beam and to abut against a mounting plate having a mounting through hole in the side beam; An anti-rotation groove is formed at one end of the second sleeve portion away from the first sleeve portion, and the anti-rotation groove is used to cooperate with the anti-rotation protrusion on the side beam.

9. A battery pack assembly, characterized in that: It comprises a battery pack and at least one battery pack mounting structure according to any one of claims 1 to 8, wherein the sleeve in the battery pack mounting structure is connected to a side beam in the battery pack.

10. A vehicle, characterized in that: It comprises a vehicle body and the battery pack assembly as claimed in claim 9, wherein the battery pack is connected to the vehicle body via a battery pack mounting structure.

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