Battery pack structure and vehicle

Abstract

The utility model discloses a battery pack structure and a vehicle, the battery pack structure comprises a battery pack main body, a first mounting beam and a second mounting beam, the first mounting beam is fixedly connected to the two sides of the battery pack main body along the width direction of the vehicle, the first mounting beam is detachably connected with the second mounting beam, and the second mounting beam is detachably connected with the battery pack main body. The second mounting beam is used for being detachably connected with a vehicle body front floor. According to the battery pack structure disclosed by the utility model, the battery pack main body is detachably connected with the second mounting beam through the first mounting beam and then is detachably connected with the front floor of the vehicle body through the second mounting beam, so that the size range of the battery pack main body is expanded; according to the battery pack structure, a battery pack main body with a smaller size can be adaptive to a front floor of a vehicle body with a larger size by adopting the battery pack structure, so that cross-platform and cross-vehicle-type use of the battery pack is realized, and the universality of the battery pack structure is improved; when a new vehicle model with a large-size vehicle body front floor is developed, a new battery pack structure does not need to be developed or purchased, and the development cost of the whole vehicle is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and more specifically, to a battery pack structure and a vehicle. Background Art

[0002] For the battery pack structure of the same model, its size is usually unchanged, which results in that the battery pack structure of a certain model can only be adapted to vehicles within a certain range, and the versatility of the battery pack structure is poor. When developing a new vehicle model, the structure of the body floor may change, which may lead to the inability to adapt the original model of the battery pack structure, and it is necessary to develop a new battery pack structure for adaptation, increasing the development cost. Summary of the Utility Model

[0003] In view of this, the utility model aims to provide a battery pack structure and a vehicle to solve at least one of the technical problems such as poor versatility of the battery pack structure and increased development cost in the prior art.

[0004] The utility model provides a battery pack structure, including a battery pack main body, a first installation beam and a second installation beam. The first installation beam is fixedly connected to both sides of the battery pack main body along the vehicle width direction. The first installation beam is detachably connected to the second installation beam, and the second installation beam is used for detachably connecting to the front floor of the vehicle body.

[0005] Further, the first installation beam includes a first upper plate and a first lower plate. The first upper plate has a first upper plate section and a second upper plate section. The first lower plate has a first lower plate section and a second lower plate section. The first upper plate section is fixedly connected to both sides of the battery pack main body along the vehicle width direction. The second upper plate section is fixedly connected to the second lower plate section. The first lower plate section is fixedly connected to the lower side of the battery pack main body.

[0006] Further, the first installation beam further includes a first front plate. The first front plate has a first front plate section, a second front plate section and a third front plate section. The first front plate section is fixedly connected to the front side of the battery pack main body. The second front plate section is fixedly connected to the front end of the first upper plate section. The third front plate section is fixedly connected to the front end of the second lower plate section.

[0007] Further, the second front plate section is attached to the front end of the first upper plate section. The third front plate section is attached to the front end of the second lower plate section. The front end of the second upper plate section is attached to the front end of the second lower plate section to form an inverted T shape.

[0008] Further, the first mounting beam further includes a first rear plate, which has a first rear plate section, a second rear plate section, and a third rear plate section. The first rear plate section is fixedly connected to the rear side of the battery pack body, the second rear plate section is fixedly connected to the rear end of the first upper plate section, and the third rear plate section is fixedly connected to the rear end of the second lower plate section.

[0009] Further, the second rear plate section is in contact with the rear end of the first upper plate section, the third rear plate section is in contact with the rear end of the second lower plate section, and the rear end of the second upper plate section is in contact with the rear end of the second lower plate section to form an inverted T shape.

[0010] Further, the second upper plate section is provided with a first convex portion facing upward, and the second lower plate section is provided with a second convex portion facing downward. The first convex portion and the second convex portion enclose a first cavity.

[0011] Further, the second mounting beam includes a second upper plate and a second lower plate. On the side of the second upper plate away from the battery pack body, there is a third convex portion facing upward, and on the side of the second lower plate away from the battery pack body, there is a fourth convex portion facing downward. The third convex portion and the fourth convex portion enclose a second cavity.

[0012] Further, on the side of the second upper plate close to the battery pack body, there is a fifth convex portion facing upward, and on the side of the second lower plate close to the battery pack body, there is a sixth convex portion facing downward. The fifth convex portion and the sixth convex portion enclose a third cavity.

[0013] The present utility model also provides a vehicle, including the battery pack structure described above.

[0014] In the battery pack structure of the present utility model, the battery pack body is fixedly connected with first mounting beams on both sides along the vehicle width direction. The first mounting beams are detachably connected to the second mounting beams, and then the second mounting beams are detachably connected to the vehicle body front floor. This expands the size range of the battery pack body, enabling a battery pack body with a relatively small size along the vehicle width direction in an original vehicle model to be installed on the vehicle body front floor with a relatively large size along the vehicle width direction in a newly developed vehicle model through the first mounting beams and the second mounting beams. That is, a battery pack body with a small size can be adapted to a vehicle body front floor with a large size by using the battery pack structure of the present utility model, realizing the cross-platform and cross-model use of the battery pack and improving the versatility of the battery pack structure. When developing a new vehicle model with a vehicle body front floor of a large size, there is no need to develop or purchase a new battery pack structure, reducing the development cost of the whole vehicle.

[0015] The vehicle of the present utility model has all the beneficial effects of the above-mentioned battery pack structure and will not be elaborated here.

[0016] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following provides preferred embodiments in conjunction with the accompanying drawings and describes them in detail as follows. Description of the Drawings

[0017] In the drawings, which are not necessarily to scale, the same reference numerals may describe similar components in different views. The same reference numerals with alphabetic suffixes or different alphabetic suffixes may represent different instances of similar components. The drawings generally illustrate various embodiments by way of example and not limitation, and are used together with the description and the claims to explain the disclosed embodiments. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be an exhaustive or exclusive embodiment of the apparatus or method. The drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0018] Figure 1 is a schematic diagram of the front floor of a vehicle body with a battery pack structure installed in the present utility model;

[0019] Figure 2 is a first schematic diagram of the battery pack structure in the present utility model;

[0020] Figure 3 is a second schematic diagram of the battery pack structure in the present utility model (the second mounting beam is not shown);

[0021] Figure 4 is a third schematic diagram of the battery pack structure in the present utility model (the second mounting beam is not shown);

[0022] Figure 5 is a first schematic diagram of the second mounting beam in the present utility model;

[0023] Figure 6 is a second schematic diagram of the second mounting beam in the present utility model.

[0024] Among them, the above-mentioned drawings include the following reference numerals:

[0025] 01. First cavity; 02. Second cavity; 03. Third cavity; 1. Battery pack body; 2. First mounting beam; 21. First upper plate; 211. First upper plate section; 212. Second upper plate section; 2121. First convex part; 22. First lower plate; 221. First lower plate section; 222. Second lower plate section; 2221. Second convex part; 23. First front plate; 231. First front plate section; 232. Second front plate section; 233. Third front plate section; 24. First rear plate; 241. First rear plate section; 242. Second rear plate section; 243. Third rear plate section; 3. Second mounting beam; 31. Second upper plate; 311. Third convex part; 312. Fifth convex part; 32. Second lower plate; 321. Fourth convex part; 322. Sixth convex part; 4. First sleeve; 5. Second sleeve; 100. Front floor of vehicle body; 101. Underfloor longitudinal beam of vehicle body. Detailed implementation manners

[0026] Next, specific embodiments of the present utility model will be described in detail with reference to the accompanying drawings, but this is not a limitation of the present utility model.

[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0028] This specification may use the phrase "in one embodiment", "in another embodiment", "in yet another embodiment" or "in other embodiments", which can all refer to one or more of the same or different embodiments according to the present utility model.

[0029] Combined with Figures 1 to 6 As shown, the Z-axis in the figure represents the vehicle height direction, the positive Z-axis represents upward, the negative Z-axis represents downward, the X-axis in the figure represents the vehicle length direction, the positive X-axis represents forward, the negative X-axis represents backward, the Y-axis in the figure represents the vehicle width direction, the positive Y-axis represents left, and the negative Y-axis represents right.

[0030] The utility model provides a battery pack structure, which includes a battery pack main body 1, a first mounting beam 2 and a second mounting beam 3. The first mounting beam 2 is fixedly connected to both sides of the battery pack main body 1 along the vehicle width direction. The first mounting beam 2 is detachably connected to the second mounting beam 3, and the second mounting beam 3 is used for detachably connecting to the vehicle body front floor 100.

[0031] Combined with Figure 1 As shown, a front floor lower longitudinal beam 101 is installed below the vehicle body front floor 100. Both sides of the battery pack main body 1 along the vehicle width direction (i.e., both sides of the positive and negative Y axes) are fixedly connected with a first mounting beam 2. The first mounting beam 2 and the second mounting beam 3 are detachably connected by means such as bolts and pin shafts. The second mounting beam 3 is detachably connected to the front floor lower longitudinal beam 101 of the vehicle body front floor 100 by means such as bolts and pin shafts. Generally speaking, as Figure 1 shown, at least one set of the first mounting beam 2 and the second mounting beam 3 should be arranged on the left side of the battery pack main body 1, and at least another set of the first mounting beam 2 and the second mounting beam 3 should be symmetrically arranged on the right side of the battery pack main body 1 to ensure vehicle balance. However, the design can also consider other vehicle structures, and the feature of left-right symmetry is not limited here.

[0032] In the battery pack structure of the utility model, the first mounting beam 2 is fixedly connected to both sides of the battery pack main body 1 along the vehicle width direction. The first mounting beam 2 is detachably connected to the second mounting beam 3, and then the second mounting beam 3 is detachably connected to the vehicle body front floor 100, which expands the size range of the battery pack main body 1. The battery pack main body 1 with a smaller size along the vehicle width direction in the original vehicle model can be installed on the vehicle body front floor 100 with a larger size along the vehicle width direction in the newly developed vehicle model through the first mounting beam 2 and the second mounting beam 3. That is, the battery pack main body 1 with a smaller size can be adapted to the vehicle body front floor 100 with a larger size by using the battery pack structure of the utility model, realizing the cross-platform and cross-vehicle use of the battery pack and improving the versatility of the battery pack structure. When developing a new vehicle model with a vehicle body front floor 100 with a larger size, there is no need to develop or purchase a new battery pack structure, reducing the development cost of the whole vehicle.

[0033] Furthermore, the first mounting beam 2 includes a first upper plate 21 and a first lower plate 22. The first upper plate 21 has a first upper plate section 211 and a second upper plate section 212. The first lower plate 22 has a first lower plate section 221 and a second lower plate section 222. The first upper plate section 211 is fixedly connected to both sides of the battery pack main body 1 along the vehicle width direction. The second upper plate section 212 is fixedly connected to the second lower plate section 222. The first lower plate section 221 is fixedly connected to the lower side of the battery pack main body 1.

[0034] Combined withFigure 2 and Figure 3 As shown in Figure 3 , the figure shows a partial structure of the battery pack structure on the side close to the reverse direction of the Y-axis. The partial structure of the battery pack structure on the side close to the positive direction of the Y-axis will not be described here. The first upper plate 21 is arranged as a whole along the X-axis direction. The first upper plate 21 has a first upper plate section 211 and a second upper plate section 212. An angle approximately 90 degrees is formed between the first upper plate section 211 and the second upper plate section 212. When observing the first upper plate 21 perpendicular to the ZY plane and along the reverse direction of the X-axis, the first upper plate 21 is generally in an L shape that is flipped left and right. The first upper plate section 211 is generally parallel to the ZX plane and is fixedly connected to the side of the battery pack main body 1 facing the reverse direction of the Y-axis by means such as welding. The second upper plate section 212 is generally parallel to the XY plane. The first lower plate 22 has a first lower plate section 221 and a second lower plate section 222. The first lower plate section 221 and the second lower plate section 222 are generally arranged in parallel and are both parallel to the XY plane. The first lower plate section 221 is slightly lower than the second lower plate section 222 in the vehicle height direction. The first lower plate section 221 is fixedly connected to the lower side of the battery pack main body 1 (i.e., the side facing the reverse direction of the Z-axis) by means such as welding. The second lower plate section 222 is fixedly connected to the second upper plate section 212 by means such as welding.

[0035] In this way, by fixedly connecting the first upper plate section 211 to both sides of the battery pack main body 1 along the vehicle width direction, by fixedly connecting the second upper plate section 212 to the second lower plate section 222, and by fixedly connecting the first lower plate section 221 to the lower side of the battery pack main body 1, the connection strength and stiffness between the first mounting beam 2 and the battery pack main body 1 are improved, which is beneficial to improving the connection strength and stiffness between the battery pack structure and the vehicle body.

[0036] Furthermore, the first mounting beam 2 further includes a first front plate 23. The first front plate 23 has a first front plate section 231, a second front plate section 232, and a third front plate section 233. The first front plate section 231 is fixedly connected to the front side of the battery pack main body 1. The second front plate section 232 is fixedly connected to the front end of the first upper plate section 211. The third front plate section 233 is fixedly connected to the front end of the second lower plate section 222.

[0037] Combined Figure 2 and Figure 3 As shown in Figure 2 and Figure 3 , the first front plate 23 has a first front plate section 231, a second front plate section 232, and a third front plate section 233. The first front plate section 231 is generally parallel to the ZY plane and is fixedly connected to the front side of the battery pack main body 1 (i.e., the side facing the positive direction of the X-axis) by means such as welding. The second front plate section 232 is fixedly connected to the front end (i.e., the end facing the positive direction of the X-axis) of the first upper plate section 211 by means such as welding. The third front plate section 233 is fixedly connected to the front end (i.e., the end facing the positive direction of the X-axis) of the second lower plate section 222 by means such as welding.

[0038] In this way, the first front plate 23 is fixedly connected to the front side of the battery pack main body 1 through the first front plate section 231, is fixedly connected to the front end of the first upper plate section 211 through the second front plate section 232, and is fixedly connected to the front end of the second lower plate section 222 through the third front plate section 233, further improving the connection strength and stiffness between the first mounting beam 2 and the battery pack main body 1, which is beneficial to improving the connection strength and stiffness between the battery pack structure and the vehicle body.

[0039] Furthermore, the second front plate section 232 fits with the front end of the first upper plate section 211, the third front plate section 233 fits with the front end of the second lower plate section 222, and the front end of the second upper plate section 212 fits with the front end of the second lower plate section 222 to form an inverted T shape.

[0040] Combined Figure 2 and Figure 3 As shown, the second front plate section 232 is generally parallel to the ZX plane, fits with the front end of the first upper plate section 211 (i.e., the end facing the positive X-axis direction), and is fixedly connected to the two by spot welding; the third front plate section 233 is generally parallel to the XY plane, fits with the front end of the second lower plate section 222 (i.e., the end facing the positive X-axis direction), and is fixedly connected to the two by spot welding; the front ends of the second lower plate section 222 and the second upper plate section 212 are both generally parallel to the XY plane, the front end of the second upper plate section 212 fits with the front end of the second lower plate section 222, and is fixedly connected to the two by spot welding; it can be seen from Figure 3 that the front end of the first upper plate 21 is in an L shape that is flipped left and right, the second front plate section 232 and the third front plate section 233 combined are in an L shape, and the front end of the first lower plate 22 is in a straight shape, and the above structures finally combine to form an inverted T shape.

[0041] In this way, by forming the inverted T-shaped structure, the strength and stiffness of the battery pack structure at this position are improved, which is beneficial to improving the connection strength and stiffness between the battery pack structure and the vehicle body.

[0042] Furthermore, the first mounting beam 2 further includes a first rear plate 24, the first rear plate 24 has a first rear plate section 241, a second rear plate section 242, and a third rear plate section 243, the first rear plate section 241 is fixedly connected to the rear side of the battery pack main body 1, the second rear plate section 242 is fixedly connected to the rear end of the first upper plate section 211, and the third rear plate section 243 is fixedly connected to the rear end of the second lower plate section 222.

[0043] Combined Figure 4As shown, the first rear plate 24 has a first rear plate segment 241, a second rear plate segment 242, and a third rear plate segment 243. The first rear plate segment 241 is substantially parallel to the ZY plane and is fixedly connected to the rear side of the battery pack body 1 (i.e., the side facing the reverse direction of the X axis) by means such as welding. The second rear plate segment 242 is fixedly connected to the rear end (i.e., the end facing the reverse direction of the X axis) of the first upper plate segment 211 by means such as welding. The third rear plate segment 243 is fixedly connected to the rear end (i.e., the end facing the reverse direction of the X axis) of the second lower plate segment 222 by means such as welding.

[0044] In this way, the first rear plate 24 is fixedly connected to the rear side of the battery pack body 1 through the first rear plate segment 241, fixedly connected to the rear end of the first upper plate segment 211 through the second rear plate segment 242, and fixedly connected to the rear end of the second lower plate segment 222 through the third rear plate segment 243, further improving the connection strength and stiffness between the first mounting beam 2 and the battery pack body 1, which is beneficial to improving the connection strength and stiffness between the battery pack structure and the vehicle body.

[0045] Furthermore, the second rear plate segment 242 is attached to the rear end of the first upper plate segment 211, the third rear plate segment 243 is attached to the rear end of the second lower plate segment 222, and the rear end of the second upper plate segment 212 is attached to the rear end of the second lower plate segment 222 to form an inverted T shape.

[0046] Combined Figure 4 As shown, the second rear plate segment 242 is substantially parallel to the ZX plane. It is attached to the rear end (i.e., the end facing the reverse direction of the X axis) of the first upper plate segment 211 and the two are fixedly connected by spot welding. The third rear plate segment 243 is substantially parallel to the XY plane. It is attached to the rear end (i.e., the end facing the reverse direction of the X axis) of the second lower plate segment 222 and the two are fixedly connected by spot welding. The rear ends of both the second lower plate segment 222 and the second upper plate segment 212 are substantially parallel to the XY plane. The rear end of the second upper plate segment 212 is attached to the rear end of the second lower plate segment 222 and the two are fixedly connected by spot welding. It can be seen from Figure 4 that the rear end of the first upper plate 21 is L-shaped, the combination of the second rear plate segment 242 and the third rear plate segment 243 is L-shaped with a left-right flip, and the rear end of the first lower plate 22 is in a straight shape. The above structures finally combine to form an inverted T shape.

[0047] In this way, by forming the inverted T-shaped structure, the strength and stiffness of the battery pack structure at this position are improved, which is beneficial to improving the connection strength and stiffness between the battery pack structure and the vehicle body.

[0048] Further, the second upper plate segment 212 is provided with a first convex portion 2121 facing upward, and the second lower plate segment 222 is provided with a second convex portion 2221 facing downward. The first convex portion 2121 and the second convex portion 2221 enclose a first cavity 01.

[0049] Combined Figure 3 with Figure 4 As shown, the second upper plate segment 212 is provided with a first convex portion 2121 facing upward (i.e., facing the positive direction of the Z axis), and the second lower plate segment 222 is provided with a second convex portion 2221 facing downward (i.e., facing the negative direction of the Z axis). The first convex portion 2121 and the second convex portion 2221 enclose (i.e., the cavity structure between the first convex portion 2121 and the second convex portion 2221) to form a first cavity 01. Preferably, the battery pack structure further includes a first sleeve 4. The first convex portion 2121 is provided with a first through hole, the second convex portion 2221 is provided with a second through hole, and the second mounting beam 3 is provided with a third through hole. The first sleeve 4 is fixedly connected to the first through hole and the second through hole, and a first fastener passes through the first sleeve 4 and the third through hole to detachably connect the first mounting beam 2 and the second mounting beam 3.

[0050] In this way, the strength and stiffness in the vicinity of this position can be improved by the setting of the first cavity 01, which is beneficial to the connection strength and stiffness between the first mounting beam 2 and the second mounting beam 3, and further beneficial to improving the connection strength and stiffness between the battery pack structure and the vehicle body.

[0051] Further, the second mounting beam 3 includes a second upper plate 31 and a second lower plate 32. The second upper plate 31 is provided with a third convex portion 311 facing upward on the side away from the battery pack main body 1, and the second lower plate 32 is provided with a fourth convex portion 321 facing downward on the side away from the battery pack main body 1. The third convex portion 311 and the fourth convex portion 321 enclose a second cavity 02.

[0052] Combined Figure 5As shown in the figure, the second mounting beam 3 on the side of the battery pack structure close to the reverse direction of the Y-axis is shown. A third protrusion 311 facing upward (i.e., facing the positive direction of the Z-axis) is provided on the side of the second upper plate 31 close to the reverse direction of the Y-axis (i.e., the side away from the battery pack main body 1), and a fourth protrusion 321 facing downward (i.e., facing the negative direction of the Z-axis) is provided on the side of the second lower plate 32 close to the reverse direction of the Y-axis (i.e., the side away from the battery pack main body 1). The third protrusion 311 and the fourth protrusion 321 enclose (i.e., the cavity structure between the third protrusion 311 and the fourth protrusion 321) to form a second cavity 02. Preferably, the battery pack structure further includes a second sleeve 5. A fourth through hole is provided on the third protrusion 311, a fifth through hole is provided on the fourth protrusion 321, and a sixth through hole is provided on the front floor lower longitudinal beam 101 of the vehicle body front floor 100. The second sleeve 5 is fixedly connected to the fourth through hole and the fifth through hole, and a second fastener passes through the second sleeve 5 and the sixth through hole to detachably connect the second mounting beam 3 and the front floor lower longitudinal beam 101.

[0053] In this way, through the setting of the second cavity 02, the strength and stiffness in the vicinity of this position can be improved, which is beneficial to the connection strength and stiffness between the second mounting beam 3 and the front floor lower longitudinal beam 101 of the vehicle body front floor 100, and further beneficial to improving the connection strength and stiffness between the battery pack structure and the vehicle body.

[0054] Furthermore, a fifth protrusion 312 facing upward is provided on the side of the second upper plate 31 close to the battery pack main body 1, and a sixth protrusion 322 facing downward is provided on the side of the second lower plate 32 close to the battery pack main body 1. The fifth protrusion 312 and the sixth protrusion 322 enclose to form a third cavity 03.

[0055] Combined Figure 6 As shown in the figure, the second mounting beam 3 on the side of the battery pack structure close to the reverse direction of the Y-axis is shown. A fifth protrusion 312 facing upward (i.e., facing the positive direction of the Z-axis) is provided on the side of the second upper plate 31 close to the positive direction of the Y-axis (i.e., the side close to the battery pack main body 1), and a sixth protrusion 322 facing downward (i.e., facing the negative direction of the Z-axis) is provided on the side of the second lower plate 32 close to the positive direction of the Y-axis (i.e., the side close to the battery pack main body 1). The fifth protrusion 312 and the sixth protrusion 322 enclose (i.e., the cavity structure between the fifth protrusion 312 and the sixth protrusion 322) to form a third cavity 03.

[0056] In this way, through the setting of the third cavity 03, the strength and stiffness in the vicinity of this position can be improved, which is beneficial to the connection strength and stiffness between the second mounting beam 3 and the first mounting beam 2, and further beneficial to improving the connection strength and stiffness between the battery pack structure and the vehicle body.

[0057] The present utility model also provides a vehicle, including the battery pack structure described above.

[0058] The vehicle in the present utility model adopts the above battery pack structure. The battery pack main body 1 is fixedly connected with the first mounting beams 2 on both sides along the vehicle width direction. The first mounting beams 2 are detachably connected with the second mounting beams 3, and then the second mounting beams 3 are detachably connected with the front floor 100 of the vehicle body, expanding the size range of the battery pack main body 1. The battery pack main body 1 with a relatively small size along the vehicle width direction in the original vehicle model can be mounted on the front floor 100 of the newly developed vehicle model with a relatively large size along the vehicle width direction through the first mounting beams 2 and the second mounting beams 3. That is, the battery pack main body 1 with a small size can be adapted to the front floor 100 with a large size by adopting the battery pack structure in the present utility model, realizing the cross-platform and cross-vehicle use of the battery pack and improving the versatility of the battery pack structure. When developing a new vehicle model with a front floor 100 having a relatively large size, there is no need to develop or purchase a new battery pack structure, reducing the development cost of the whole vehicle.

[0059] For the sake of convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper" etc. can be used here to describe the spatial position relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the figure. For example, if the device in the attached drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will be positioned as "below other devices or structures" or "under other devices or structures" afterwards. Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned or rotated in other different ways by 90 degrees or in other orientations, and corresponding interpretations will be made for the spatial relative descriptions used here.

[0060] In addition to the above, it should also be noted that the "one embodiment", "another embodiment", "embodiment" etc. mentioned in this specification refer to the specific features, structures or characteristics described in connection with this embodiment being included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in connection with any one embodiment, it is intended that the implementation of such feature, structure or characteristic in combination with other embodiments also falls within the scope of the present utility model.

[0061] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A battery pack structure, characterized in that, It includes a battery pack main body (1), a first mounting beam (2) and a second mounting beam (3). The first mounting beam (2) is fixedly connected to both sides of the battery pack main body (1) along the vehicle width direction. The first mounting beam (2) is detachably connected to the second mounting beam (3), and the second mounting beam (3) is used for detachably connecting to the front floor (100) of the vehicle body.

2. The battery pack structure according to claim 1, wherein, The first mounting beam (2) includes a first upper plate (21) and a first lower plate (22). The first upper plate (21) has a first upper plate section (211) and a second upper plate section (212). The first lower plate (22) has a first lower plate section (221) and a second lower plate section (222). The first upper plate section (211) is fixedly connected to both sides of the battery pack main body (1) along the vehicle width direction. The second upper plate section (212) is fixedly connected to the second lower plate section (222), and the first lower plate section (221) is fixedly connected to the lower side of the battery pack main body (1).

3. The battery pack structure according to claim 2, wherein The first mounting beam (2) further includes a first front plate (23). The first front plate (23) has a first front plate section (231), a second front plate section (232) and a third front plate section (233). The first front plate section (231) is fixedly connected to the front side of the battery pack main body (1). The second front plate section (232) is fixedly connected to the front end of the first upper plate section (211), and the third front plate section (233) is fixedly connected to the front end of the second lower plate section (222).

4. The battery pack structure according to claim 3, wherein The second front plate section (232) is in contact with the front end of the first upper plate section (211). The third front plate section (233) is in contact with the front end of the second lower plate section (222). The front end of the second upper plate section (212) is in contact with the front end of the second lower plate section (222) to form an inverted T shape.

5. The battery pack structure according to claim 2, characterized in that, The first mounting beam (2) further includes a first rear plate (24). The first rear plate (24) has a first rear plate section (241), a second rear plate section (242) and a third rear plate section (243). The first rear plate section (241) is fixedly connected to the rear side of the battery pack main body (1). The second rear plate section (242) is fixedly connected to the rear end of the first upper plate section (211), and the third rear plate section (243) is fixedly connected to the rear end of the second lower plate section (222).

6. The battery pack structure according to claim 5, wherein, The second rear plate section (242) is in contact with the rear end of the first upper plate section (211). The third rear plate section (243) is in contact with the rear end of the second lower plate section (222). The rear end of the second upper plate section (212) is in contact with the rear end of the second lower plate section (222) to form an inverted T shape.

7. The battery pack structure according to claim 2, wherein, The second upper plate section (212) is provided with a first convex portion (2121) facing upward. The second lower plate section (222) is provided with a second convex portion (2221) facing downward. The first convex portion (2121) and the second convex portion (2221) enclose and form a first cavity (01).

8. The battery pack structure according to claim 1, wherein, The second mounting beam (3) includes a second upper plate (31) and a second lower plate (32). On the side of the second upper plate (31) away from the battery pack main body (1), there is a third convex portion (311) facing upward. On the side of the second lower plate (32) away from the battery pack main body (1), there is a fourth convex portion (321) facing downward. The third convex portion (311) and the fourth convex portion (321) enclose and form a second cavity (02).

9. The battery pack structure according to claim 8, wherein, On the side of the second upper plate (31) close to the battery pack main body (1), there is a fifth convex portion (312) facing upward. On the side of the second lower plate (32) close to the battery pack main body (1), there is a sixth convex portion (322) facing downward. The fifth convex portion (312) and the sixth convex portion (322) enclose and form a third cavity (03).

10. A vehicle, characterized in that, Comprising the battery pack structure according to any one of claims 1 to 9.

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