Battery pack and electric vehicle

Abstract

The utility model relates to the technical field of batteries, in particular to a battery pack and an electric vehicle, the battery pack comprises a box body and an adapter, and a hoisting structure is arranged on the outer side wall of the box body; the adapter and the box body are of a split type structure, the adapter is connected with the hoisting structure, at least part of the hoisting structure extends in the first direction so that the assembling direction of the adapter can be in the first direction, and the first direction is perpendicular to the outer side wall, where the hoisting structure is arranged, of the box body; a connecting hole used for being connected with a vehicle is formed in the adapter, and at least part of the connecting hole is a kidney-shaped hole.

Description

Technical Field

[0001] The present disclosure relates to the technical field of batteries, and in particular, to a battery pack and an electric vehicle. Background Art

[0002] In an electric vehicle, a battery pack is often provided, and the battery pack is used to provide power for the electric vehicle. In an electric vehicle, the battery pack is usually mounted on the vehicle body structure. In related technologies, a hoisting structure is provided at the bottom of the battery pack, and the battery pack and the vehicle body are connected through the hoisting structure provided at the bottom of the battery pack. In practical applications, installing the battery pack through the hoisting structure provided at the bottom of the battery pack has high tolerance requirements for the battery pack, making the installation and disassembly of the battery pack inconvenient.

[0003] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0004] The purpose of the present disclosure is to provide a battery pack and an electric vehicle, thereby at least to a certain extent improving the convenience of assembling and disassembling the battery pack.

[0005] According to one aspect of the present disclosure, a battery pack is provided, and the battery pack includes:

[0006] A box body, on the outer side wall of which a hoisting structure is provided;

[0007] An adapter, the adapter and the box body are of a split structure, the adapter is connected to the hoisting structure, the hoisting structure at least partially extends along a first direction, so that the assembly direction of the adapter is along the first direction, the first direction is perpendicular to the outer side wall of the box body where the hoisting structure is provided, and a connection hole for connecting the vehicle is provided on the adapter, and at least part of the connection hole is an oblong hole.

[0008] According to another aspect of the present disclosure, an electric vehicle is provided, and the electric vehicle includes:

[0009] The above battery pack;

[0010] At least one mounting beam, the adapter is respectively connected to the box body and the mounting beam.

[0011] The battery pack provided by the embodiments of the present disclosure includes a box body and an adapter. A hoisting structure is arranged on the outer side wall of the box body. The adapter and the box body are of a split structure. The adapter is connected to the hoisting structure. The hoisting structure extends at least partially along a first direction, so that the assembly direction of the adapter is along the first direction. The first direction is perpendicular to the outer side wall of the box body where the hoisting structure is arranged. By means of the hoisting structure arranged on the outer side wall of the box body and the adapter, the battery pack is connected to the vehicle, realizing the lateral connection between the battery pack and the vehicle, which is convenient for disassembly, installation and later maintenance. Moreover, the adapter and the box body are of a split structure, which can better match the assembly tolerance. Further, a connection hole for connecting the vehicle is arranged on the adapter, and at least part of the connection hole is an oval hole. The assembly error can be absorbed through the oval hole, reducing the installation requirements and difficulty.

[0012] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings here are incorporated into the specification and constitute a part of this specification, showing the embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 FIG. is a schematic structural diagram of a battery pack provided by an exemplary embodiment of the present disclosure;

[0015] Figure 2 FIG. is an installation schematic diagram of a battery pack provided by an exemplary embodiment of the present disclosure.

[0016] DESCRIPTION OF REFERENCE NUMERALS:

[0017] 100, battery pack; 10, box body; 11, bottom plate; 12, frame; 101, outer side wall; 102, hoisting structure; 20, adapter; 21, first adapter plate; 22, second adapter plate; 201, connection hole; 30, single battery; 210, first installation beam; 220, second installation beam. DETAILED DESCRIPTION

[0018] Next, the technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described in conjunction with the drawings in the exemplary embodiments of the present disclosure. The exemplary embodiments described herein are only for the purpose of illustration and are not intended to limit the protection scope of the present disclosure. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the protection scope of the present disclosure.

[0019] In the description of the present disclosure, unless otherwise clearly specified and defined, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; the term "plurality" means two or more; the term "and / or" includes any combination and all combinations of one or more of the associated listed items. In particular, the reference to "the / a" object is also intended to mean one of the possible plurality of such objects.

[0020] Unless otherwise specified or stated, terms such as "connected" and "fixed" shall be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0021] Furthermore, in the description of the present disclosure, it should be understood that the orientation terms such as "upper", "lower", "inner", and "outer" described in the exemplary embodiments of the present disclosure are described from the angles shown in the drawings and should not be construed as a limitation on the exemplary embodiments of the present disclosure. It should also be understood that in the context, when it is mentioned that an element or feature is connected "on", "under", or "inside", "outside" another element(s), it can not only be directly connected "on", "under", or "inside", "outside" another element(s), but also be indirectly connected "on", "under", or "inside", "outside" another element(s) through an intermediate element.

[0022] The exemplary embodiments of the present disclosure first provide a battery pack 100, as Figure 1 and Figure 2 shown, the battery pack 100 includes a box body 10 and an adapter 20. A hoisting structure 102 is provided on the outer side wall 101 of the box body 10; the adapter 20 and the box body 10 are of a split structure. The adapter 20 is connected to the hoisting structure 102. The hoisting structure 102 extends at least partially along a first direction (X direction) so that the assembly direction of the adapter 20 is along the first direction. The first direction is perpendicular to the outer side wall 101 of the box body 10 where the hoisting structure 102 is provided. And a connection hole 201 for connecting to a vehicle is provided on the adapter 20, and at least part of the connection hole 201 is an oblong hole.

[0023] The battery pack 100 provided in the embodiment of the present disclosure includes a box body 10 and an adapter 20. A hanging structure 102 is provided on the outer wall 101 of the box body 10. The adapter 20 and the box body 10 are split structures. The adapter 20 and the hanging structure 102 are connected. The hanging structure 102 at least partially extends along a first direction, so that the assembly direction of the adapter 20 is along the first direction. The first direction is perpendicular to the outer wall 101 of the box body 10 where the hanging structure 102 is provided. The battery pack 100 is connected to the vehicle by the hanging structure 102 and the adapter 20 provided on the outer wall 101 of the box body 10, so that the battery pack 100 and the vehicle are connected laterally, which is convenient for disassembly and assembly and later maintenance. The adapter 20 and the box body 10 are split structures, which can better match the assembly tolerance. Further, the adapter 20 is provided with a connection hole 201 for connecting to the vehicle, and at least a part of the connection hole 201 is a waist-shaped hole. The waist-shaped hole can absorb the assembly error and reduce the installation requirements and difficulty.

[0024] The following is a detailed description of each part of the battery pack 100 provided in the embodiment of the present disclosure:

[0025] The box 10 is used to form the outer contour of the battery pack 100 and protect the components in the box 10. The box 10 includes a bottom plate 11 and a frame 12, and the frame 12 and the bottom edge are connected to form a battery compartment for accommodating batteries. Alternatively, a battery compartment for accommodating batteries and an electrical compartment for accommodating electrical components may be formed in the box 10. For example, a partition beam is provided in the space formed by the bottom plate 11 and the frame 12, and the space in the box 10 is divided into a battery compartment and an electrical compartment by the partition beam.

[0026] In some embodiments, the box body 10 may further include a box cover, the bottom plate 11 and the frame 12 form the lower box body 10, and the box cover is disposed on the lower box body 10. The box cover is connected to a side of the frame 12 away from the bottom plate 11, and the lower box body 10 is sealed by the box cover to protect the batteries and electrical components of the lower box body 10.

[0027] It is understandable that in some other feasible embodiments of the present disclosure, the box body 10 may not include a box cover, and the lower box body 10 is directly connected to the vehicle, and acts as a box cover through the chassis or frame of the vehicle.

[0028] The outer side wall 101 of the box body 10 is provided with a hanging structure 102, and the hanging structure 102 is used to connect with the adapter 20. The outer side wall 101 of the box body 10 refers to the side of the frame 12 away from the internal space. The box body 10 has multiple outer side walls 101, and the hanging structure 102 can be provided on some or all of the outer side walls 101.

[0029] Exemplarily, the frame 12 may include a first side beam, a second side beam, a third side beam, and a fourth side beam that are sequentially connected end to end, and the first side beam, the second side beam, the third side beam, and the fourth side beam form a rectangular or approximately rectangular frame body. Lifting structures 102 may be provided on two opposite outer sidewalls 101 of the box body 10. For example, the lifting structures 102 are respectively provided on the outer sidewalls 101 of the first side beam and the third side beam.

[0030] The lifting structure 102 extends at least partially in a first direction, and the first direction is perpendicular to the outer sidewall 101 of the box body 10. It should be noted that when the lifting structures 102 are provided on multiple outer sidewalls 101 of the box body 10, the extending direction (the first direction) of the lifting structure 102 refers to the direction perpendicular to the outer sidewall 101 of the box body 10 on which the lifting structure 102 is provided. The lifting structure 102 extending in the first direction can be understood as the axis of the lifting hole extending in the first direction, or the axis of the connecting member extending in the first direction.

[0031] Optionally, the lifting structure 102 includes a lifting hole and a connecting member. The lifting hole is provided on the outer sidewall 101 of the box body 10; the connecting member is connected to the lifting hole, and the connecting member is connected to the adapter 20, and the connecting member extends in the first direction. By setting the connecting member to extend in the first direction, the connecting member can be connected to the adapter 20 and the box body 10 in the first direction, thereby improving the installation convenience and avoiding interference.

[0032] Among them, the lifting hole may be a threaded hole, and the corresponding connecting member is a bolt. The axis of the lifting hole is arranged in the first direction, and the axis of the connecting bolt is arranged in the first direction. That is, when connecting to the adapter 20, the connecting bolt is installed laterally along the box body 10, avoiding interference and improving the installation convenience.

[0033] In the embodiment of the present disclosure, one or more rows of lifting structures 102 may be provided on an outer sidewall 101 of the box body 10. Providing multiple rows of lifting structures 102 on the outer sidewall 101 of the box body 10 can improve the lifting stability and reduce the failure rate of the installation of the battery pack 100.

[0034] A plurality of single cells 30 may be provided in the box body 10, and the plurality of single cells 30 are arranged in the battery compartment according to a preset rule. For example, the plurality of single cells 30 form a first battery layer and a second battery layer, and the first battery layer and the second battery layer are stacked in the vertical direction in the box body 10, and the first battery layer and the second battery layer are arranged at intervals. That is, there is a gap between the first battery layer and the second battery layer, and this gap can be used as a pressure relief space when the single cell 30 is out of control due to heat.

[0035] The single cell 30 may include a battery housing, an electrode assembly, and a terminal post. The battery housing is used to form the outer contour of the single cell 30 and protect the components inside the battery housing. An accommodation space is provided inside the battery housing, the electrode assembly is disposed in the accommodation space, the terminal post is provided on the battery housing, and the terminal post is connected to the electrode assembly.

[0036] The battery housing may include a housing body and a cover plate. One end of the housing body has an opening, and the cover plate is connected to the opening of the housing body. The housing body may include a bottom wall and a side frame. The bottom wall and the cover plate are oppositely arranged. The side frame is in a cylindrical structure with two open ends, and the bottom wall and the cover plate are respectively connected to both ends of the cylindrical structure.

[0037] The electrode assembly is disposed inside the battery housing, the electrode assembly is connected to the terminal post, and the electrode assembly is immersed in the electrolyte. The electrode assembly includes an electrode body and electrode tabs. The electrode tabs extend from the electrode body; there are two electrode tabs on the electrode body, and the two electrode tabs are respectively a first electrode tab (positive electrode tab) and a second electrode tab (negative electrode tab), and the first electrode tab and the second electrode tab may be respectively connected to the corresponding adapter 20.

[0038] It should be noted that the electrode body may include more than two electrode plates, the electrode tabs include more than two single-piece electrode tabs, the single-piece electrode tabs respectively extend from the electrode plates corresponding to them, the width of the single-piece electrode tab is smaller than the width of the electrode plate, and multiple single-piece electrode tabs are stacked to form the electrode tab.

[0039] In one embodiment, the battery is a stacked battery, which is not only convenient for grouping but also can be processed into a battery with a longer length. The electrode assembly is a stacked electrode assembly, and the electrode assembly has a first electrode plate stacked with each other, a second electrode plate with an opposite electrical property to the first electrode plate, and a separator disposed between the first electrode plate and the second electrode plate, so that multiple pairs of the first electrode plate and the second electrode plate are stacked to form the stacked electrode assembly.

[0040] Optionally, the electrode assembly may be a wound electrode assembly, that is, the first electrode plate, the second electrode plate with an opposite electrical property to the first electrode plate, and the separator disposed between the first electrode plate and the second electrode plate are wound to obtain the wound electrode assembly.

[0041] In the embodiments of the present disclosure, the single cells 30 are all cylindrical batteries. The axis of the single cell 30 is arranged in the vertical direction. That is, a plurality of single cells 30 are arranged vertically in two layers. The vertical arrangement of the single cells 30 in two layers can effectively save the size of the battery pack 100 in the non-height direction, which is beneficial to the flexible layout of the battery pack 100 in an electric vehicle. It can be understood that in some other embodiments, the single cell 30 may also be a quadrangular prism battery, and the embodiments of the present disclosure are not limited thereto.

[0042] The assembly direction of the adapter 20 is along the first direction. That is, when the adapter 20 is connected to the box body 10, the adapter 20 approaches the box body 10 along the first direction, and during the movement of the adapter 20 along the first direction, it is aligned with the hoisting structure 102.

[0043] The adapter 20 includes a first adapter plate 21 and a second adapter plate 22. The first adapter plate 21 abuts against the outer side wall 101 of the box body 10, and the first adapter plate 21 is connected to the hoisting structure 102; the second adapter plate 22 is connected to the first adapter plate 21, and the second adapter plate 22 is perpendicularly arranged with respect to the first adapter plate 21, and the connection hole 201 is provided on the second adapter plate 22.

[0044] The hoisting structure 102 on the box body 10 is connected through the first adapter plate 21, and the vehicle main body structure is connected through the second adapter plate 22. The first adapter plate 21 and the second adapter plate 22 are perpendicularly arranged, which can avoid the problem of difficult installation caused by limited assembly space during installation. And the waist-shaped connection hole 201 is provided on the second adapter plate 22, which ensures the absorption of errors through the waist-shaped hole and avoids the risk of the vertical movement of the battery pack 100 caused by the waist-shaped hole being located on the first adapter plate 21 (in an electric vehicle, the vertical movement of the battery pack 100 needs to be prohibited).

[0045] It should be noted that the waist-shaped hole refers to a hole in which the dimensions of the connection hole 201 in two non-coincident directions are inconsistent. For example, the dimension of the connection hole 201 in the first direction is L1, and the dimension of the connection hole 201 in the second direction is L2. The second direction is perpendicular to the first direction and parallel to the second adapter plate 22. L2 is greater than L1.

[0046] At least two rows of connection holes 201 are provided on the second adapter plate 22. One row of connection holes 201 includes at least two connection holes 201. By providing at least two rows of connection holes 201 on the second adapter plate 22, the connection stability between the adapter and the vehicle main body structure can be improved, and further the connection stability between the battery pack 100 and the vehicle main body structure can be improved.

[0047] The height of the box body 10 is greater than or equal to 150 mm, and the ratio range of the height of the first adapter plate 21 to the height of the outer side wall 101 of the box body 10 is 2 / 3 - 1. The height of the box body 10 is the dimension of the box body 10 in the vertical direction, the height of the first adapter plate 21 is the dimension of the first adapter plate 21 in the vertical direction, and the height of the outer side wall 101 of the box body 10 is the dimension of the outer side wall 101 of the box body 10 in the vertical direction. The vertical direction is perpendicular to the bottom plate 11 of the box body 10. By setting the ratio range of the height of the first adapter plate 21 to the height of the outer side wall 101 of the box body 10 to be 2 / 3 - 1, on the one hand, it ensures the connection area between the adapter 20 and the box body 10, thereby ensuring the connection stability between the battery pack 100 and the vehicle body structure. On the other hand, it also avoids the problem that the height occupied by the first adapter plate 21 is too high.

[0048] The height of the first adapter plate 21 is h, and the width of the second adapter plate 22 is w, and 1 ≤ h / w ≤ 1.7. The width of the second adapter plate 22 is the dimension of the second adapter plate 22 in the first direction. By setting 1 ≤ h / w ≤ 1.7, on the one hand, it avoids the problem that the ratio is too large and it is easy to crush, bend and deform the split adapter 20. On the other hand, it avoids the problem that the ratio is too small and it is not conducive to weight reduction. And 1 ≤ h / w ≤ 1.7 makes the adapter 20 evenly stressed, and the hanging stability of the battery pack 100 is high.

[0049] The second adapter plate 22 is connected to one end of the first adapter plate 21 close to the bottom of the battery pack 100. That is, the first adapter plate 21 and the second adapter plate 22 form an L-shaped structure, and the second adapter plate 22 is located at the bottom end of the first adapter plate 21, which can improve the hanging stability of the battery pack 100 and is convenient for positioning.

[0050] The battery pack 100 provided by the embodiment of the present disclosure includes a box body 10 and an adapter 20. A lifting structure 102 is provided on the outer side wall 101 of the box body 10. The adapter 20 and the box body 10 are of a split structure. The adapter 20 is connected to the lifting structure 102. The lifting structure 102 extends at least partially in the first direction so that the assembly direction of the adapter 20 is along the first direction. The first direction is perpendicular to the outer side wall 101 of the box body 10 where the lifting structure 102 is provided. The battery pack 100 is connected to the vehicle through the lifting structure 102 provided on the outer side wall 101 of the box body 10 and the adapter 20, realizing the lateral connection between the battery pack 100 and the vehicle, which is convenient for disassembly, installation and later maintenance. And the adapter 20 and the box body 10 are of a split structure, which can better match the assembly tolerance. Further, a connection hole 201 for connecting the vehicle is provided on the adapter 20, and at least part of the connection hole 201 is an oval hole. The assembly error can be absorbed through the oval hole, reducing the installation requirements and difficulty.

[0051] The exemplary embodiments of the present disclosure further provide an electric vehicle, which includes a battery pack 100 and at least one mounting beam. The adapter 20 is respectively connected to the box body 10 and the mounting beam. For example, the second adapter plate 22 is connected to the mounting beam by bolts, and the bolts pass through the connection holes 201.

[0052] Among them, the battery pack 100 includes a box body 10 and an adapter 20. A hoisting structure 102 is provided on the outer side wall 101 of the box body 10; the adapter 20 and the box body 10 are of a split structure. The adapter 20 is connected to the hoisting structure 102. The hoisting structure 102 extends at least partially in the first direction, so that the assembly direction of the adapter 20 is along the first direction. The first direction is perpendicular to the outer side wall 101 of the box body 10 where the hoisting structure 102 is provided. And connection holes 201 for connecting the vehicle are provided on the adapter 20, and at least part of the connection holes 201 are waist-shaped holes.

[0053] The electric vehicle provided by the embodiments of the present disclosure includes a battery pack 100. A hoisting structure 102 is provided on the outer side wall 101 of the box body 10 in the battery pack 100. The adapter 20 and the box body 10 are of a split structure. The adapter 20 is connected to the hoisting structure 102. The hoisting structure 102 extends at least partially in the first direction, so that the assembly direction of the adapter 20 is along the first direction. The first direction is perpendicular to the outer side wall 101 of the box body 10 where the hoisting structure 102 is provided. The battery pack 100 is connected to the vehicle through the hoisting structure 102 provided on the outer side wall 101 of the box body 10 and the adapter 20, realizing the lateral connection between the battery pack 100 and the vehicle, which is convenient for disassembly, installation and later maintenance. And the adapter 20 and the box body 10 are of a split structure, which can better match the assembly tolerance. Further, connection holes 201 for connecting the vehicle are provided on the adapter 20, and at least part of the connection holes 201 are waist-shaped holes. The assembly error can be absorbed through the waist-shaped holes, reducing the installation requirements and difficulty.

[0054] The electric vehicle includes a first mounting beam 210 and a second mounting beam 220. The first mounting beam 210 and the second mounting beam 220 are arranged opposite to each other. The battery pack 100 is arranged between the first mounting beam 210 and the second mounting beam 220; among them, the distance between the first mounting beam 210 and the second mounting beam 220 is L1, and the width of the battery pack 100 is L2, and 0.8≤L2 / L1≤1. By setting L2 / L1 to 0.8 - 1, on the one hand, the outer envelope can be reduced and the vehicle space can be saved, and on the other hand, interference between the first mounting beam 210 and the second mounting beam 220 and the battery pack 100 can be avoided.

[0055] Among them, a first adapter 20 and a second adapter 20 are respectively arranged on both sides of the battery pack 100. The first adapter 20 is connected to the first mounting beam 210 (bolted connection), and the second adapter 20 is connected to the second mounting beam 220 (bolted connection).

[0056] In practical applications, the first mounting beam 210 and the second mounting beam 220 are inherent structures on the vehicle, which form a fixed accommodation space, and the battery pack 100 is installed in this accommodation space. There are other devices arranged on the front side, rear side and top side of the accommodation space in the vehicle. Therefore, the battery pack 100 is installed into the accommodation space from the bottom of the vehicle. On this basis, the box body 10 and the adapter 20 are set as a split structure, which is convenient for the battery pack 100 to enter the accommodation space from the bottom of the vehicle, and the width of the battery pack 100 is increased as much as possible to improve the space utilization rate.

[0057] The top surface of the mounting beam abuts against the bottom surface of the adapter 20, and the bottom surface of the adapter 20 is flush with the bottom surface of the box body 10. That is to say, the connection surface of the mounting beam and the adapter 20 and the bottom surface of the box body 10 are located on the same horizontal plane. By setting the connection surface of the mounting beam and the adapter 20 and the bottom surface of the box body 10 on the same horizontal plane, the flatness of the vehicle chassis can be improved, and the battery pack 100 is protected by the first mounting beam 210 and the second mounting beam 220 to avoid the problem that the battery pack 100 is easily damaged by bumping due to its too low height.

[0058] It should be noted that the electric vehicle in the embodiments of the present disclosure can be a pure electric vehicle, or the electric vehicle can also be a hybrid vehicle, etc. The embodiments of the present disclosure do not make specific limitations on this.

[0059] The electric vehicle provided by the embodiments of the present disclosure includes a battery pack 100. A lifting structure 102 is arranged on the outer side wall 101 of the box body 10 in the battery pack 100. The adapter 20 and the box body 10 are of a split structure. The adapter 20 is connected to the lifting structure 102. The lifting structure 102 extends at least partially in the first direction, so that the assembly direction of the adapter 20 is along the first direction, and the first direction is perpendicular to the outer side wall 101 of the box body 10 where the lifting structure 102 is arranged. The battery pack 100 is connected to the vehicle through the lifting structure 102 arranged on the outer side wall 101 of the box body 10 and the adapter 20, realizing the lateral connection between the battery pack 100 and the vehicle, which is convenient for disassembly, installation and later maintenance. Moreover, the adapter 20 and the box body 10 are of a split structure, which can better match the assembly tolerance. Further, the adapter 20 is provided with connection holes 201 for connecting the vehicle, and at least part of the connection holes 201 are waist-shaped holes, through which the assembly error can be absorbed, reducing the installation requirements and difficulty.

[0060] After considering the specification and the practice of the invention disclosed herein, those skilled in the art will readily conceive of other embodiments of the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and the embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the appended claims.

Claims

1. A battery pack, characterized in that: The battery pack comprises: A box body, wherein a hoisting structure is arranged on the outer side wall of the box body; An adapter, wherein the adapter and the box body are split structures, the adapter and the lifting structure are connected, the lifting structure at least partially extends along a first direction so that the assembly direction of the adapter is along the first direction, the first direction and the outer side wall of the box body on which the lifting structure is arranged are perpendicular, and the adapter is provided with connecting holes for connecting to a vehicle, and at least a part of the connecting holes are waist-shaped holes.

2. The battery pack according to claim 1, characterized in that: The adapter comprises: A first adapter plate, the first adapter plate abuts against the outer side wall of the box body, and the first adapter plate is connected to the hanging structure; A second adapter plate, wherein the second adapter plate is connected to the first adapter plate, and the second adapter plate and the first adapter plate are vertically arranged, and the connecting hole is arranged on the second adapter plate.

3. The battery pack according to claim 2, characterized in that: The second adapter plate is provided with at least two rows of connection holes.

4. The battery pack according to claim 2, characterized in that: The height of the box body is greater than or equal to 150 mm, and the ratio of the height of the first adapter plate to the height of the outer side wall of the box body is in the range of 2 / 3-1.

5. The battery pack according to claim 4, characterized in that: The height of the first adapter plate is h, the width of the second adapter plate is w, and 1≤h / w≤1.

7.

6. The battery pack according to claim 2, characterized in that: The second adapter plate is connected to an end of the first adapter plate close to the bottom of the battery pack.

7. The battery pack according to claim 1, characterized in that: The hoisting structure comprises: A hoisting hole, the hoisting hole being arranged on the outer side wall of the box body; A connecting piece, the connecting piece is connected to the hanging hole, and the connecting piece is connected to the adapter, and the connecting piece extends along the first direction.

8. An electric vehicle, characterized in that: The electric vehicle comprises: The battery pack according to any one of claims 1 to 7; At least one mounting beam, the adapter is respectively connected to the box body and the mounting beam.

9. The electric vehicle according to claim 8, characterized in that: The electric vehicle comprises a first mounting beam and a second mounting beam, the first mounting beam and the second mounting beam are arranged opposite to each other, and the battery pack is arranged between the first mounting beam and the second mounting beam; Wherein, the distance between the first mounting beam and the second mounting beam is L1, the width of the battery pack is L2, and 0.8≤L2 / L1≤1.

10. The electric vehicle according to claim 8, characterized in that: The top surface of the mounting beam abuts against the bottom surface of the adapter, and the bottom surface of the adapter is flush with the bottom surface of the box.

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