Battery upper cover assembly, battery frame, battery pack and vehicle

Abstract

The utility model discloses a battery upper cover assembly, a battery frame, a battery pack and a vehicle. The battery upper cover assembly comprises a battery upper cover and a vehicle body floor which are oppositely arranged; the battery upper cover is provided with a first characteristic rib, and the first characteristic rib is arranged in a protruding mode in the direction close to the vehicle body floor; a second characteristic rib is arranged on the vehicle body floor, and the second characteristic rib protrudes in the direction away from the battery upper cover; the first characteristic rib and the second characteristic rib are arranged oppositely and extend in the same direction in the first direction, and the size of the first characteristic rib in the second direction is smaller than or equal to the size of the second characteristic rib in the second direction. The vehicle comprises the battery upper cover assembly. According to the battery upper cover assembly, the battery frame, the battery pack and the vehicle provided by the invention, the space loss in the height direction of the vehicle body caused by the arrangement of reinforcing ribs on the battery upper cover is avoided, so that the arrangement of structural parts in the battery and the reservation of a safe distance are ensured.

Description

Technical Field

[0001] The present application relates to the technical field of power batteries, and in particular to a battery cover assembly, a battery frame, a battery pack and a vehicle. Background Art

[0002] As the power demand of pure electric projects increases, the size of the battery also increases, so the large surface size of the battery cover of the power battery also increases accordingly.

[0003] Whether it is a sheet metal battery cover or a PCM / RTM battery cover, the increase in area will increase the risk of large surface flatness deviation of the battery cover. In order to ensure the large surface flatness, some ribs need to be added to the large surface of the battery cover. The existing technical solution adopts a design scheme of setting reinforcing ribs inside the envelope. The above design scheme will lose 2-4mm in vertical height, which is not conducive to the arrangement of internal structural parts of the battery and the reservation of safety distance. Utility Model Content

[0004] The purpose of the present application is to provide a battery cover assembly, a battery frame, a battery pack and a vehicle, so as to avoid the space loss in the height direction of the vehicle body caused by arranging reinforcing ribs on the battery cover, so as to ensure the arrangement of the internal structural parts of the battery and the reservation of a safe distance.

[0005] The technical solution of the present application provides a battery cover assembly, comprising: a battery cover and a vehicle body floor arranged opposite to each other; the battery cover is provided with a first characteristic rib, the first characteristic rib is protruding in a direction close to the vehicle body floor; the vehicle body floor is provided with a second characteristic rib, the second characteristic rib is protruding in a direction away from the battery cover; the first characteristic rib and the second characteristic rib are arranged opposite to each other and extend in the same direction along the first direction, and the size of the first characteristic rib along the second direction is less than or equal to the size of the second characteristic rib along the second direction.

[0006] Optionally, the number of the first characteristic ribs and the number of the second characteristic ribs are at least three, and the at least three first characteristic ribs and the at least three second characteristic ribs are respectively arranged in one-to-one correspondence and are arranged along the second direction.

[0007] Optionally, the number of the first characteristic ribs is three, and the straight-line distance between any two adjacent first characteristic ribs along the second direction is a constant value L1, 400mm≤L1≤500mm.

[0008] Optionally, two ends of the first characteristic rib extend respectively to two edges of the battery cover that are arranged opposite to each other along the first direction.

[0009] Optionally, the battery cover is provided with a first mounting point, the first mounting point is located between two adjacent first characteristic ribs, and a second mounting point is also provided on the edge of the battery cover; a third mounting point and a fourth mounting point are correspondingly arranged on the vehicle body floor, the first mounting point is connected to the third mounting point, and the second mounting point is connected to the fourth mounting point.

[0010] Optionally, the number of the first mounting points is at least two, and at least two of the first mounting points are arranged along the first direction; the battery cover is also provided with a reinforcing rib thickened toward the inner side of the battery, and at least two of the first mounting points are located on the reinforcing rib.

[0011] Optionally, the first characteristic rib and the second characteristic rib that are arranged opposite to each other are arranged in parallel along the height direction of the vehicle body.

[0012] Optionally, a distance L2 is left between the battery cover and the vehicle body floor, and L2≥8mm.

[0013] Optionally, the protruding height of the first characteristic rib is L3, the protruding height of the second characteristic rib is L4, 3mm≤L3≤4mm, 4mm≤L4≤5mm.

[0014] The present application also provides a battery frame, comprising a base frame and a battery upper cover assembly, wherein the battery upper cover assembly is installed on the base frame.

[0015] The present application also provides a battery pack, comprising a battery cell assembly and a battery frame, wherein the battery cell assembly is installed inside the battery frame.

[0016] The present application also provides a vehicle, comprising the battery pack described above.

[0017] The above technical solution has the following beneficial effects:

[0018] The battery cover assembly, battery frame, battery pack and vehicle provided by the present application are characterized in that the first characteristic rib provided on the battery cover protrudes toward the direction of the vehicle body floor and is directly opposite to the second characteristic rib provided on the vehicle body floor, and the first characteristic rib and the second characteristic rib extend in the same direction and the size of the first characteristic rib along the second direction is less than or equal to the size of the second characteristic rib along the second direction, so that the first characteristic rib of the battery cover and the second characteristic rib of the vehicle body floor are designed in a conformal manner, so as to achieve the effect of the first characteristic rib being located outside the battery envelope, avoiding the battery from losing space in the height direction of the vehicle body, so as to ensure the arrangement of the internal structural parts of the battery and the reservation of a safety distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an exploded view of the battery cover and the vehicle body floor in one embodiment of the present application.

[0020] Figure 2 This is a top view of the assembled battery cover and vehicle body floor in one embodiment of the present application.

[0021] Figure 3 for Figure 2 Sectional view of AA.

[0022] Figure 4 for Figure 3 A partial enlarged view of B.

[0023] Figure 5 This is a detailed view of a vehicle body floor provided with a second characteristic rib in one embodiment of the present application.

[0024] Figure 6 Schematic diagram of the structure of the battery cover in one embodiment of the present application.

[0025] Figure 7 FIG. 1 is a top view of a battery cover in one embodiment of the present application.

[0026] Figure 8 This is a bottom view of a battery cover in one embodiment of the present application.

[0027] Fig. 9 This is a front view of a battery cover in one embodiment of the present application.

[0028] Fig.10 It is a side view of a battery cover in one embodiment of the present application.

[0029] Reference Numbers

[0030] 1-battery cover, 10-first characteristic rib, 11-first mounting point, 12-second mounting point, 13-reinforcement rib.

[0031] 2-body floor, 20-second characteristic rib. DETAILED DESCRIPTION

[0032] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0033] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a variety of structural modes and implementation modes can be replaced by those skilled in the art. Therefore, the following specific implementation methods and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction on the technical solution of the utility model.

[0034] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0035] The present application provides a battery upper cover assembly, comprising: a battery upper cover 1 and a vehicle body floor 2 which are arranged opposite to each other.

[0036] Please refer to Figures 1 to 5 The battery cover 1 is provided with a first characteristic rib 10, and the first characteristic rib 10 is protruded in a direction close to the vehicle body floor 2. The vehicle body floor 2 is provided with a second characteristic rib 20, and the second characteristic rib 20 is protruded in a direction away from the battery cover 1; the first characteristic rib 10 and the second characteristic rib 20 are arranged opposite to each other and extend in the same direction along the first direction, such as Figure 4 shown.

[0037] The size of the first characteristic rib 10 along the second direction is less than or equal to the size of the second characteristic rib 20 along the second direction. The width of the first characteristic rib 10 along the second direction is less than or equal to the width of the second characteristic rib 20 along the second direction, so that the second characteristic rib 20 can completely cover the outside of the first characteristic rib 10 in the second direction, such as Figure 4 shown.

[0038] like Figure 6 to Figure 7 As shown, the direction indicated by arrow C is the first direction, which can be the length direction or the longitudinal direction of the vehicle body. The direction indicated by arrow D is the second direction, which can be the width direction or the lateral direction of the vehicle body. The first direction and the second direction can be the x-axis direction and the y-axis direction perpendicular to each other in the coordinate system, respectively.

[0039] In the embodiment of the present application, the second characteristic rib 20 of the vehicle body floor 2 is strongly correlated with the first characteristic rib 10 of the battery cover 1. When the second characteristic rib 20 changes position and shape, the first characteristic rib 10 also changes position and shape.

[0040] The battery cover assembly provided in the present application is configured such that the first characteristic rib 10 provided on the battery cover 1 is raised toward the direction of the vehicle body floor 2 and is directly opposite to the second characteristic rib 20 provided on the vehicle body floor 2, and the first characteristic rib 10 and the second characteristic rib 20 extend in the same direction and the size of the first characteristic rib 10 along the second direction is less than or equal to the size of the second characteristic rib 20 along the second direction, so that the first characteristic rib 10 of the battery cover 1 and the second characteristic rib 20 of the vehicle body floor 2 are designed in a conformal manner, so as to achieve the effect of the first characteristic rib 10 being located outside the battery envelope, avoiding the battery from losing space in the height direction of the vehicle body, so as to ensure the arrangement of the internal structural parts of the battery and the reservation of a safety distance. The present application is also beneficial to increasing the number of arranged batteries and improving the cruising range.

[0041] As an optional embodiment, the number of the first characteristic ribs 10 and the second characteristic ribs 20 is at least three, and the at least three first characteristic ribs 10 and the at least three second characteristic ribs 20 are respectively arranged one by one and arranged along the second direction. In the embodiment of the present application, at least three first characteristic ribs 10 divide the battery cover 1 into at least four areas and effectively support the battery cover 1, reducing the single area and ensuring the structural strength of the large surface of the battery cover 1. At least three second characteristic ribs 20 correspond to at least three first characteristic ribs 10 to ensure the conformal design requirements between the first characteristic ribs 10 and the second characteristic ribs 20.

[0042] As an optional embodiment, the number of the first characteristic ribs 10 is three, and the straight-line distance between any two adjacent first characteristic ribs 10 along the second direction is a constant value L1, 400mm≤L1≤500mm. Figures 6 to 9 As shown, in the embodiment of the present application, L1 can be 400 mm. Among the three first characteristic ribs 10, the straight line span between any two adjacent first characteristic ribs 10 is set to 400 mm, and the battery cover 1 can be divided into four areas of relatively uniform size, so that the three first characteristic ribs 10 can support the battery cover 1 relatively uniformly. Figures 6 to 9 As shown, the flatness of the battery cover 1 is effectively maintained.

[0043] As an optional embodiment, the battery cover 1 is provided with a first mounting point 11, and the first mounting point 11 is located between two adjacent first characteristic ribs 10, such as Figures 6 to 8As shown, the edge of the battery cover 1 is also provided with a second mounting point 12. The vehicle body floor 2 is correspondingly provided with a third mounting point and a fourth mounting point, the first mounting point 11 is connected to the third mounting point, and the second mounting point 12 is connected to the fourth mounting point. The first mounting point 11 in the embodiment of the present application is a mounting point in the middle of the battery, which is connected to the third mounting point on the vehicle body floor 2 to achieve the connection of the middle area between the battery cover 1 and the vehicle body floor 2. The second mounting point 12 is arranged at the edge of the battery cover 1, and is connected to the fourth mounting point on the vehicle body floor 2 to achieve a stable connection between the edge of the battery cover 1 and the vehicle body floor 2. The embodiment of the present application increases the rigidity of the battery cover 1, ensures that the large surface of the battery cover 1 does not collapse, and makes the flatness of the battery cover 1 within the tolerance range. The first mounting point 11 and the third mounting point, the second mounting point 12 and the fourth mounting point in the embodiment of the present application can all be connected by bolts.

[0044] As an optional embodiment, the number of the first mounting points 11 is at least two, and at least two of the first mounting points 11 are arranged along the first direction; the battery cover 1 is also provided with a reinforcing rib 13 thickened toward the inner side of the battery, and at least two of the first mounting points 11 are located on the reinforcing rib 13. In the embodiment of the present application, at least two first mounting points 11 are arranged one-to-one with at least two third mounting points along the first direction, and the reinforcing rib 13 also extends along the first direction, which can increase the structural strength of the battery cover 1 along the first direction. In addition, the reinforcing rib 13 also plays a role in reducing the risk of cracking at the connection between the battery cover 1 and the vehicle body floor 2. The reinforcing rib 13 is thickened by 3.2 mm toward the inner side of the battery, which is conducive to increasing the strength of the mounting part.

[0045] As an optional embodiment, the two ends of the first characteristic rib 10 extend to two edges of the battery cover 1 that are oppositely arranged along the first direction. Figures 6 to 10 As shown, in the embodiment of the present application, two ends of the first characteristic rib 10 extend to two ends of the battery cover 1 along the first direction respectively, which can increase the structural strength of the battery cover 1 along the first direction.

[0046] As an optional embodiment, the first characteristic rib 10 and the second characteristic rib 20 are arranged opposite to each other in parallel along the vehicle body height direction. The embodiment of the present application can keep the first characteristic rib 10 and the second characteristic rib 20 in a parallel state, meeting the design requirements of the whole vehicle.

[0047] As an optional embodiment, a distance L2 is left between the battery cover 1 and the vehicle body floor 2, L2 ≥ 8mm. As an optional implementation, L2 = 8mm, such as Figure 4As shown, the embodiment of the present application can make the distance between the battery cover 1 and the vehicle body floor 2 meet the requirements of the vehicle design, while achieving the effect of effectively isolating the battery cover from the vehicle body floor to avoid mutual influence between the two, and also achieving the effect of shock absorption and noise reduction.

[0048] As an optional embodiment, the protruding height of the first characteristic rib 10 is L3, and the protruding height of the second characteristic rib 20 is L4, 3mm≤L3≤4mm, 4mm≤L4≤5mm. As an optional implementation, L3=3mm, L4=4mm, so that the distance between the first characteristic rib 10 and the second characteristic rib 20 is slightly larger than the distance between the battery cover 1 and the vehicle body floor 2, such as Figure 4 As shown, sufficient space is provided for the conformal design of the first characteristic rib 10 and the second characteristic rib 20. The embodiment of the present application can design the protruding height of the first characteristic rib 10 and the second characteristic rib 20, so that the distance between the first characteristic rib 10 and the second characteristic rib 20 along the vehicle body height is maintained within a preset range, meeting the design requirements of the whole vehicle. The first characteristic rib 10 protrudes 3mm-4mm in the direction of the vehicle body floor 2, and the conformal design of the second characteristic rib 20 on the vehicle body floor 2 can allow the battery to obtain a space between 3mm-4mm in the vehicle body height direction, which is convenient for the arrangement of the internal structural parts of the battery and the reservation of a safety distance.

[0049] The present application also provides a battery frame, comprising a base frame and a battery upper cover assembly, wherein the battery upper cover assembly is installed on the base frame.

[0050] The present application also provides a battery pack, comprising a battery cell assembly and a battery frame, wherein the battery cell assembly is installed inside the battery frame.

[0051] The present application also provides a vehicle, comprising the battery pack described in the above embodiment.

[0052] The battery frame, battery pack and vehicle provided in the present application are configured such that the first characteristic rib 10 provided on the battery cover 1 is raised toward the direction of the vehicle body floor 2 and is directly opposite to the second characteristic rib 20 provided on the vehicle body floor 2, and the first characteristic rib 10 and the second characteristic rib 20 extend in the same direction and the size of the first characteristic rib 10 along the second direction is less than or equal to the size of the second characteristic rib 20 along the second direction, so that the first characteristic rib 10 of the battery cover 1 and the second characteristic rib 20 of the vehicle body floor 2 are designed in a conformal manner, so as to achieve the effect of the first characteristic rib 10 being located outside the battery envelope, avoiding the battery from losing space in the height direction of the vehicle body, so as to ensure the arrangement of the internal structural parts of the battery and the reservation of a safety distance. The present application is also conducive to increasing the number of arranged batteries and improving the battery capacity.

[0053] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0054] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principles of the present invention, several other modifications can be made, which should also be considered as the protection scope of the present invention.

Claims

1. A battery cover assembly, characterized in that: include: A battery cover and a vehicle body floor arranged opposite to each other; The battery upper cover is provided with a first characteristic rib, and the first characteristic rib is protruding in a direction close to the vehicle body floor; A second characteristic rib is provided on the vehicle body floor, and the second characteristic rib is protruded in a direction away from the battery cover; the first characteristic rib and the second characteristic rib are arranged opposite to each other and extend in the same direction along the first direction, and the size of the first characteristic rib along the second direction is less than or equal to the size of the second characteristic rib along the second direction.

2. The battery cover assembly according to claim 1, characterized in that: The number of the first characteristic ribs and the number of the second characteristic ribs are both at least three, and the at least three first characteristic ribs and the at least three second characteristic ribs are respectively arranged in one-to-one correspondence and are arranged along the second direction.

3. The battery cover assembly according to claim 2, characterized in that: The number of the first characteristic ribs is three, and the straight-line distance between any two adjacent first characteristic ribs along the second direction is a constant value L1, 400mm≤L1≤500mm.

4. The battery cover assembly according to claim 1, characterized in that: The battery cover is provided with a first mounting point, the first mounting point is located between two adjacent first characteristic ribs, and the edge of the battery cover is also provided with a second mounting point; A third mounting point and a fourth mounting point are correspondingly arranged on the vehicle body floor, the first mounting point is connected to the third mounting point, and the second mounting point is connected to the fourth mounting point.

5. The battery cover assembly according to claim 4, characterized in that: The number of the first mounting points is at least two, and at least two of the first mounting points are arranged along the first direction; The battery upper cover is further provided with a reinforcing rib thickened toward the inner side of the battery, and at least two of the first mounting points are located on the reinforcing rib.

6. The battery cover assembly according to any one of claims 1 to 5, characterized in that: Two ends of the first characteristic rib extend respectively to two edges of the battery cover that are oppositely arranged along a first direction.

7. The battery cover assembly according to any one of claims 1 to 5, characterized in that: The first characteristic rib and the second characteristic rib that are arranged opposite to each other are arranged in parallel along the height direction of the vehicle body.

8. The battery cover assembly according to any one of claims 1 to 5, characterized in that: A distance L2 is left between the battery cover and the vehicle body floor, and L2≥8mm.

9. The battery cover assembly according to any one of claims 1 to 5, characterized in that: The protruding height of the first characteristic rib is L3, and the protruding height of the second characteristic rib is L4, 3mm≤L3≤4mm, 4mm≤L4≤5mm.

10. A battery frame, characterized in that: It comprises a base frame and a battery cover assembly as described in any one of claims 1 to 9, wherein the battery cover assembly is mounted on the base frame.

11. A battery pack, characterized in that: It comprises a battery cell assembly and the battery frame according to claim 10, wherein the battery cell assembly is installed inside the battery frame.

12. A vehicle, characterized in that: A battery pack comprising the battery pack of claim 11.

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