Battery pack upper cover plate, battery pack and vehicle

Abstract

The utility model relates to a battery pack upper cover plate, a battery pack and a vehicle, the battery pack upper cover plate comprises a cover plate body (100) and a cross beam (200), the cross beam (200) is used for installing a seat of the vehicle, a glue pouring cavity (210) is arranged between the cross beam (200) and the cover plate body (100) in a surrounding mode, and the glue pouring cavity (210) is filled with pouring sealant (300). According to the technical scheme, the upper cover plate of the battery pack can improve the overall rigidity of the battery pack.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of power batteries, in particular to a battery pack upper cover plate, a battery pack and a vehicle. BACKGROUND

[0002] As a power supply device of an electric vehicle, a power battery tends to be increasingly lightweight, however, the electric vehicle may encounter various driving conditions during driving, if the external shell of the battery pack is accidentally scratched or collided during driving, the external shell may be damaged, and then electrolyte leakage, cell thermal runaway or internal short circuit of the battery pack may occur, which may exist a safety hazard. Therefore, it is urgent to improve the overall rigidity of the battery pack. CONTENT OF THE UTILITY MODEL

[0003] To overcome the problems in the prior art, the present disclosure provides a battery pack upper cover plate, a battery pack and a vehicle, which can improve the overall rigidity of the battery pack.

[0004] According to a first aspect of an embodiment of the present disclosure, a battery pack upper cover plate is provided, comprising: a cover plate body, and a crossbeam for mounting a seat of a vehicle, a glue filling cavity is surrounded between the crossbeam and the cover plate body, and a sealant is filled in the glue filling cavity.

[0005] Optionally, a separation structure is arranged in the crossbeam, the separation structure separates the glue filling cavity into at least two sub-cavities, and the sealant is filled in at least one of the sub-cavities.

[0006] Optionally, the sub-cavities have a width in the longitudinal direction, the at least two sub-cavities include a first sub-cavity and a second sub-cavity, the first sub-cavity is arranged below the second sub-cavity, and the width of the first sub-cavity gradually increases from top to bottom.

[0007] Optionally, the first sub-cavity and the second sub-cavity are both filled with the sealant.

[0008] Optionally, the width of the second sub-cavity gradually decreases from top to bottom.

[0009] Optionally, the separation structure includes a first U-shaped frame and a second U-shaped frame, the first U-shaped frame and the cover plate body surround the first sub-cavity, and the second U-shaped frame and the crossbeam surround the second sub-cavity.

[0010] Optionally, the at least two sub-cavities include a third sub-cavity and a fourth sub-cavity, the third sub-cavity and the fourth sub-cavity are arranged on two sides of the first sub-cavity and the second sub-cavity, and the third sub-cavity and the fourth sub-cavity are arranged in axial symmetry.

[0011] Optionally, the cross beam has a sealing end and a glue pouring end arranged oppositely in the transverse direction, the sealing end is provided with a sealing plate, and the glue pouring end is open to allow the pouring glue to enter the glue pouring cavity.

[0012] According to a second aspect of the embodiments of the present disclosure, a battery pack is provided, which comprises the battery pack upper cover plate.

[0013] According to a third aspect of the embodiments of the present disclosure, a vehicle is provided, which comprises the battery pack.

[0014] With the above technical solution, in the battery pack upper cover plate provided by the present disclosure, the area (i.e. the glue pouring cavity) between the cross beam and the cover plate body is filled with pouring glue, so that the pouring glue can increase the structural strength of the cross beam and the corresponding cover plate body. On this basis, since the cross beam extends in the transverse direction of the battery pack upper cover plate, the pouring glue can also increase the torsional strength of the battery pack upper cover plate in the longitudinal direction. In summary, the battery pack upper cover plate can increase the structural strength of the upper cover plate. In addition, when the battery pack is subjected to external force impact, the pouring glue can also absorb part of the external force to reduce the deformation of the battery pack, thereby improving the overall rigidity of the battery pack.

[0015] 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 DRAWINGS

[0016] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure:

[0017] Figure 1 is a partial perspective view of a battery pack upper cover provided by an exemplary embodiment of the present disclosure;

[0018] Figure 2 is a partial side view of the battery pack upper cover from one perspective provided by an exemplary embodiment of the present disclosure;

[0019] Figure 3 is a pouring diagram of a glue pouring cavity provided by an exemplary embodiment of the present disclosure;

[0020] Figure 4 is a partial side view of the battery pack upper cover from another perspective provided by an exemplary embodiment of the present disclosure;

[0021] Figure 5 is a perspective view of the battery pack upper cover provided by an exemplary embodiment of the present disclosure;

[0022] Figure 6 is a top view of the battery pack upper cover provided by an exemplary embodiment of the present disclosure.

[0023] Reference Signs List

[0024] 100, cover plate body; 200, cross beam; 210, glue pouring cavity; 211, first sub-cavity; 212, second sub-cavity; 213, third sub-cavity; 214, fourth sub-cavity; 220, partition structure; 221, first U-shaped frame; 222, second U-shaped frame; 230, sealing end; 240, glue pouring end; 250, mounting hole; 260, central axis; 300, potting glue. DETAILED DESCRIPTION

[0025] Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. In the following description, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present disclosure. Rather, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0026] In the present disclosure, unless otherwise indicated, the orientation words such as "up" and "down" refer to the up and down in the height direction of the present disclosure in the use state. The terms "first" and "second" are used to distinguish one element from another element, and do not have sequentiality and importance. The direction "lateral" refers to the X direction in the drawings, the direction "longitudinal" refers to the Y direction in the drawings, and the direction "up-down" refers to the Z direction in the drawings. In addition, the following description, when referring to the drawings, the same reference numerals in different drawings indicate the same or similar elements, and the present disclosure does not repeat them.

[0027] According to the specific embodiments of the present disclosure, with reference to Figure 1 , Figure 5 and Figure 6 , a battery pack upper cover plate is provided, comprising: a cover plate body 100, and a cross beam 200 for mounting a seat of a vehicle, a glue pouring cavity 210 is formed between the cross beam 200 and the cover plate body 100, and the glue pouring cavity 210 is filled with potting glue 300.

[0028] Through the technical solution, in the battery pack upper cover plate provided by the present disclosure, the area between the cross beam 200 and the cover plate body 100 (i.e. the glue filling cavity 210) is filled with the potting glue 300, so that the potting glue 300 can increase the structural strength of the cross beam 200 and the corresponding cover plate body 100. On this basis, since the cross beam 200 extends along the transverse direction of the battery pack upper cover plate, the potting glue 300 can also increase the torsional strength of the battery pack upper cover plate in the longitudinal direction. In summary, the battery pack upper cover plate can increase the structural strength of the upper cover plate. In addition, when the battery pack is impacted by external force, the potting glue 300 can also absorb part of the external force to reduce the deformation of the battery pack, thereby improving the rigidity of the battery pack as a whole.

[0029] In addition, the design of the potting glue 300 can not only improve the overall rigidity of the battery pack, but also achieve lightweight design of the battery pack.

[0030] In the battery pack upper cover plate provided by the present disclosure, the glue filling cavity 210 can be constructed in any suitable manner. As an exemplary embodiment, as shown in Figure 3 , the cross beam 200 can be provided with a partition structure 220, which can separate the glue filling cavity 210 into at least two sub-cavities, and at least one of the sub-cavities can be filled with the potting glue 300. The volume of each sub-cavity is smaller than the volume of the glue filling cavity 210, so that the potting glue 300 can fill the entire sub-cavity to reduce the possibility of dead corners, and the chemical shrinkage and physical shrinkage of the potting glue 300 during curing can be reduced to reduce the possibility of cracking and collapse of the potting glue 300 after curing. Thus, the structural strengthening effect of the potting glue 300 on the battery pack is ensured.

[0031] In the battery pack upper cover plate provided by the present disclosure, the sub-cavities can be constructed in any suitable manner. As an exemplary embodiment, as shown in Figure 1 and Figure 2 , the sub-cavities can have a width in the longitudinal direction, and the at least two sub-cavities can include a first sub-cavity 211 and a second sub-cavity 212, the first sub-cavity 211 can be arranged below the second sub-cavity 212, and the width of the first sub-cavity 211 can gradually increase from top to bottom. In the present disclosure, the longitudinal section of the first sub-cavity 211 can be constructed as a trapezoidal, triangular or arc-shaped, etc., and the present disclosure does not make specific limitations thereon. The design that the width of the first sub-cavity 211 gradually increases from top to bottom can facilitate the first sub-cavity 211 to support the cross beam 200 and the second sub-cavity 212. In addition, the sub-cavities can extend along the transverse direction, so that the potting glue 300 in each sub-cavity can also extend along the transverse direction, thereby ensuring that each sub-cavity can increase the torsional strength of the battery pack upper cover plate in the longitudinal direction.

[0032] The first cavity 211 and the second cavity 212 can both be filled with potting compound 300, which can improve the structural strength of the two opposite sides of the crossbeam 200 in the vertical direction, thereby enhancing the crossbeam 200's resistance to external forces from the vertical direction.

[0033] In the battery pack cover provided in this disclosure, the second cavity 212 can be constructed in any suitable manner. As an exemplary embodiment, refer to... Figure 1 and Figure 2 As shown, the width of the second cavity 212 can gradually decrease from top to bottom. The longitudinal section of the second cavity 212 can be constructed as a trapezoid, triangle, or arc shape, etc., which is larger at the top and smaller at the bottom. This disclosure does not impose any specific limitations on this.

[0034] In the battery pack cover provided in this disclosure, the partition structure 220 can be constructed in any suitable manner. As an exemplary embodiment, refer to... Figures 1 to 3 As shown, the partition structure 220 may include a first U-shaped frame 221 and a second U-shaped frame 222. The first U-shaped frame 221 can form a first cavity 211 with the cover plate body 100, and the second U-shaped frame 222 can form a second cavity 212 with the crossbeam 200. The first U-shaped frame 221 may include a first frame, a second frame, and a third frame connected in sequence, and the second U-shaped frame 222 may include a fourth frame, a fifth frame, and a sixth frame connected in sequence. The second and fifth frames can be constructed as a single frame, thus ensuring the integrity of the partition structure 220. Alternatively, the second and fifth frames can be constructed as different frames and fixed together by welding or other methods; this disclosure does not impose specific limitations in this regard. In addition, the two ends of the first U-shaped frame 221 can be connected to the cover plate body 100 respectively, and the two ends of the second U-shaped frame 222 can be connected to the crossbeam 200 respectively. In this way, the connection strength between the crossbeam 200 and the cover plate body 100 can be further strengthened through the partition structure 220, thereby improving the structural strength of the cover plate of the battery pack.

[0035] In the battery pack cover provided in this disclosure, as an exemplary embodiment, reference is made to... Figures 1 to 3 As shown, at least two sub-cavities may include a third sub-cavity 213 and a fourth sub-cavity 214. The third sub-cavity 213 and the fourth sub-cavity 214 may be located on opposite sides of the first sub-cavity 211 and the second sub-cavity 212, and the third sub-cavity 213 and the fourth sub-cavity 214 may be arranged axially symmetrically. (Refer to...) Figure 2As shown in FIG. 1, the longitudinal section of the crossbeam 200 can have a central axis 260, the crossbeam 200 is symmetrically arranged about the central axis 260, the first sub-cavity 211 and the second sub-cavity 212, and the third sub-cavity 213 and the fourth sub-cavity 214 are symmetrically arranged about the central axis 260, so that the stress of the crossbeam 200 and each sub-cavity can be balanced to improve the structural stability of the crossbeam 200.

[0036] In the battery pack upper cover plate provided by the present disclosure, the crossbeam 200 can be constructed in any suitable manner. As an exemplary embodiment, refer to FIG. 1, the crossbeam 200 can be constructed as a hollow structure, and the crossbeam 200 can be constructed by a plurality of plates 220. Figure 1 and Figures 3 to 5 As shown in FIG. 1, the crossbeam 200 can have a sealing end 230 and a glue pouring end 240 arranged oppositely in the transverse direction. The sealing end 230 can be provided with a sealing plate, and the glue pouring end 240 can be provided with an opening to allow the pouring glue 300 to enter the glue pouring cavity 210. In this way, the pouring glue 300 can enter the glue pouring cavity 210 through the glue pouring end 240 and be limited in the glue pouring cavity 210 by the sealing plate to prevent the pouring glue 300 from overflowing the glue pouring cavity 210. In addition, the open arrangement of the glue pouring end 240 can facilitate the overflow of gas in each sub-cavity through the glue pouring end 240 during the glue pouring process.

[0037] In the battery pack upper cover plate provided by the present disclosure, as an exemplary embodiment, refer to FIG. 1, the crossbeam 200 can be constructed as a hollow structure, and the crossbeam 200 can be constructed by a plurality of plates 220. Figure 1 and Figure 5 As shown in FIG. 1, the crossbeam 200 can have a sealing end 230 and a glue pouring end 240 arranged oppositely in the transverse direction. The sealing end 230 can be provided with a sealing plate, and the glue pouring end 240 can be provided with an opening to allow the pouring glue 300 to enter the glue pouring cavity 210. In this way, the pouring glue 300 can enter the glue pouring cavity 210 through the glue pouring end 240 and be limited in the glue pouring cavity 210 by the sealing plate to prevent the pouring glue 300 from overflowing the glue pouring cavity 210. In addition, the open arrangement of the glue pouring end 240 can facilitate the overflow of gas in each sub-cavity through the glue pouring end 240 during the glue pouring process.

[0038] According to the second aspect of the present disclosure, a battery pack is provided, which comprises the battery pack upper cover plate described above. The battery pack has all the beneficial effects of the battery pack upper cover plate described above, and the present disclosure will not be repeated here.

[0039] According to the third aspect of the present disclosure, a vehicle is provided, which comprises the battery pack described above. The vehicle has all the beneficial effects of the battery pack described above, and the present disclosure will not be repeated here.

[0040] The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0041] It should be further noted that various technical features described in the above specific embodiments can be combined in any suitable manner, and the disclosure is not limited to the combinations explicitly described herein, unless otherwise indicated.

[0042] Furthermore, various different embodiments of the disclosure can be combined in any suitable manner, as long as it does not deviate from the spirit of the disclosure, and it should be considered as disclosed by the disclosure.

Claims

1. A battery pack upper cover plate, characterized by, The application relates to a battery pack upper cover plate. The battery pack upper cover plate comprises: a cover plate body, and 2. The battery pack upper cover plate of claim 1, wherein, a cross beam for mounting a seat of a vehicle, wherein a glue filling cavity is formed between the cover plate body and the cross beam, and the glue filling cavity is filled with glue.

3. The battery pack upper cover plate of claim 2, wherein, A separation structure is arranged in the cross beam, and the separation structure separates the glue filling cavity into at least two sub-cavities, and at least one of the sub-cavities is filled with the glue.

4. The battery pack upper cover plate of claim 3, wherein, The sub-cavities have a width in the longitudinal direction, and the at least two sub-cavities comprise a first sub-cavity and a second sub-cavity, the first sub-cavity is arranged below the second sub-cavity, and the width of the first sub-cavity gradually increases from top to bottom.

5. The battery pack upper cover plate of claim 3, wherein, The first sub-cavity and the second sub-cavity are both filled with the glue.

6. The battery pack upper cover plate of claim 5, wherein, The width of the second sub-cavity gradually decreases from top to bottom.

7. The battery pack upper cover plate of claim 3, wherein, The separation structure comprises a first U-shaped frame and a second U-shaped frame, the first U-shaped frame and the cover plate body form the first sub-cavity, and the second U-shaped frame and the cross beam form the second sub-cavity.

8. The battery pack upper cover plate of any one of claims 1-7, wherein, The at least two sub-cavities comprise a third sub-cavity and a fourth sub-cavity, the third sub-cavity and the fourth sub-cavity are arranged on the two sides of the first sub-cavity and the second sub-cavity, and the third sub-cavity and the fourth sub-cavity are arranged in an axisymmetric manner.

9. A battery pack, characterized by, The cross beam has a sealing end and a glue filling end arranged oppositely in the transverse direction, the sealing end is provided with a sealing plate, and the glue filling end is open to allow the glue to enter the glue filling cavity.

10. A vehicle characterized by comprising: The battery pack comprises the battery pack upper cover plate in any one of claims 1-8. The vehicle comprises the battery pack in claim 9.

Images