Battery pack upper cover, battery pack and vehicle

Abstract

The utility model provides a battery pack upper cover, a battery pack and a vehicle, and relates to the technical field of power batteries. The battery pack upper cover comprises an upper cover body, a first reinforcing piece and at least two second reinforcing pieces, the first reinforcing piece and the second reinforcing pieces are arranged on the upper cover body, the two ends of the first reinforcing piece correspondingly extend to the side edges of the upper cover body respectively, the second reinforcing pieces are arranged on the two sides of the first reinforcing piece respectively, and the second reinforcing pieces extend to the side edges of the upper cover body. According to the upper cover, the first reinforcing piece and the second reinforcing pieces are arranged on the upper cover body, the first reinforcing piece serves as a main reinforcing part, the second reinforcing pieces distributed on the two sides of the first reinforcing piece serve as secondary auxiliary reinforcing parts, and therefore the structural strength of the upper cover body is improved more effectively. In addition, the overall structure is simple, and the machining cost can be reduced.

Description

TECHNICAL FIELD

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

[0002] In the battery pack, the battery cell group for power storage and discharge is arranged in the frame, and the upper cover is arranged on the frame to encapsulate and protect the battery cell group.

[0003] In order to enhance the structural strength of the upper cover, a reinforcing rib is usually arranged on the upper cover to reduce the risk of deformation and damage of the upper cover when subjected to external force.

[0004] However, in the prior art, the reinforcing rib arranged on the upper cover has a complex shape structure, resulting in high processing cost. UTILITY MODEL CONTENT

[0005] The present application provides a battery pack upper cover, a battery pack and a vehicle to solve the problem of complex shape structure of the reinforcing rib arranged on the upper cover, resulting in high processing cost.

[0006] In a first aspect, the present application provides a battery pack upper cover, comprising an upper cover body, a first reinforcing member and at least two second reinforcing members.

[0007] The first reinforcing member and the second reinforcing member are arranged on the upper cover body, both ends of the first reinforcing member correspondingly extend to the side edges of the upper cover body, and the second reinforcing members are arranged on both sides of the first reinforcing member, and the second reinforcing members extend to the side edges of the upper cover body.

[0008] In a possible implementation, the battery pack upper cover provided by the present application divides the upper cover body into two cover body parts with equal areas by the first reinforcing member, and the second reinforcing members are correspondingly arranged on the cover body parts, and the second reinforcing members are symmetrically arranged relative to the first reinforcing member.

[0009] In a possible implementation, the battery pack upper cover provided by the present application has two first side edges arranged oppositely and two second side edges arranged oppositely, and the first side edges are connected with the second side edges;

[0010] Both ends of the first reinforcing member are flush with the two first side edges, and the second reinforcing members are flush with the second side edges.

[0011] In a possible implementation, the battery pack upper cover provided by the present application comprises a first reinforcing part and two second reinforcing parts in the first reinforcing member.

[0012] The first reinforcing part connects the two second reinforcing parts, and the two second reinforcing parts extend to the two first side edges, respectively.

[0013] The width of the first reinforcing part is less than the width of the second reinforcing part, and one end of the second reinforcing part extends towards the first reinforcing part.

[0014] In a possible implementation, the battery pack upper cover provided in the application further comprises at least one third reinforcing part.

[0015] The third reinforcing part is arranged at the connection between the first side edge and the second side edge.

[0016] In a possible implementation, the battery pack upper cover provided in the application, at least one of the first reinforcing part and the second reinforcing part is a protrusion formed on the upper cover body.

[0017] In a possible implementation, the battery pack upper cover provided in the application, the upper cover body has opposite first and second surfaces.

[0018] The first and second reinforcing parts are recessed from the first surface and protrude from the second surface, so that part of the first surface forms a mounting position for mounting the buffer part.

[0019] In a possible implementation, the battery pack upper cover provided in the application, the second reinforcing part is provided with a relief gap, and the relief gap faces the side edge of the upper cover body.

[0020] Part of the area of the first surface corresponding to the relief gap forms a mounting position.

[0021] In a possible implementation, the battery pack upper cover provided in the application, the second reinforcing part is provided with a relief gap, and the relief gap faces the side edge of the upper cover body.

[0022] In a possible implementation, the battery pack upper cover provided in the application, the second reinforcing part is provided with a relief gap, and the relief gap faces the side edge of the upper cover body.

[0023] The utility model provides a kind of battery pack upper cover, battery pack and vehicle. The battery pack upper cover includes upper cover body, first reinforcing part and at least two second reinforcing parts. The first reinforcing part and the second reinforcing part are both arranged on the upper cover body, the two ends of the first reinforcing part are connected with the upper cover body respectively, the two sides of the first reinforcing part are respectively arranged with the second reinforcing part, and the second reinforcing part is connected with the side edge of the upper cover body. The application sets the first reinforcing part and the second reinforcing part on the upper cover body, uses the first reinforcing part as the main reinforcing part, and the second reinforcing part distributed on the two sides of the first reinforcing part as the secondary auxiliary reinforcing part, to more effectively improve the structural strength of the upper cover body. And, the overall structure is simple, and processing cost can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings incorporated into the specification and forming part of the specification, show the embodiments consistent with the application, and together with the specification, are used to explain the principles of the application.

[0025] Figure 1 A structural schematic diagram of a battery pack upper cover is provided for an embodiment of the present application.

[0026] Figure 2 A structural schematic diagram of another angle of Figure 1

[0027] Figure 3 A top view of Figure 2

[0028] Figure 4 A structural schematic diagram of a frame of a battery pack is provided for an embodiment of the present application.

[0029] Explanation of reference signs:

[0030] 100, battery pack upper cover

[0031] 110, upper cover body

[0032] 111, cover body part

[0033] 112, first side edge

[0034] 113, second side edge

[0035] 114, first surface

[0036] 115, second surface

[0037] 116, connecting part

[0038] 120, first reinforcing part

[0039] 121, first reinforcing part

[0040] 122, second reinforcing part

[0041] 123, avoiding space

[0042] 130, second reinforcing part

[0043] 131, avoiding gap

[0044] 140, third reinforcing part

[0045] 200, buffer part

[0046] 300, frame

[0047] Through the above drawings, the specific embodiments of the present application have been shown, and will be described in more detail hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. ​​Detailed Implementation

[0048] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0049] The terms “first,” “second,” “third,” and “fourth,” etc. (if present), in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0050] As mentioned in the background section, in order to enhance the structural strength of the cover, reinforcing ribs are usually provided on the cover to reduce the risk of deformation and damage when the cover is subjected to external forces.

[0051] However, in the existing technology, the reinforcing ribs on the top cover have a complex shape and structure, resulting in high processing costs.

[0052] To address the aforementioned problems in the prior art, this utility model provides a battery pack cover, a battery pack, and a vehicle. The battery pack cover includes a cover body, a first reinforcing member, and at least two second reinforcing members. Both the first and second reinforcing members are disposed on the cover body. The two ends of the first reinforcing member extend to the sides of the cover body, and the second reinforcing members are arranged on both sides of the first reinforcing member, extending to the sides of the cover body. This application, by providing the first and second reinforcing members on the cover body, with the first reinforcing member as the primary reinforcing component and the second reinforcing members distributed on both sides of the first reinforcing member as secondary auxiliary reinforcing components, more effectively improves the structural strength of the cover body. Furthermore, the overall structure is simple, reducing processing costs.

[0053] The following describes exemplary application scenarios of this utility model.

[0054] The battery pack upper cover provided by the utility model can be applied to the battery pack of a new energy automobile, such as the battery pack of a pure electric drive vehicle, the battery pack of a plug-in hybrid vehicle and the like. Specifically, the battery pack upper cover provided by the utility model. By arranging the first reinforcing part and the second reinforcing part on the upper cover body, the first reinforcing part is used as the main reinforcing part, and the second reinforcing parts distributed on both sides of the first reinforcing part are used as the secondary auxiliary reinforcing parts, so that the structural strength of the upper cover body is more effectively improved. Moreover, the overall structure is simple, and the processing cost can be reduced.

[0055] The technical solutions of the application and how the technical solutions of the application solve the above technical problems will be described in detail in specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. The embodiments of the application will be described below with reference to the drawings.

[0056] Referring to Figures 1 to 3 The battery pack upper cover 100 provided by the application includes an upper cover body 110, a first reinforcing part 120 and at least two second reinforcing parts 130.

[0057] The first reinforcing part 120 and the second reinforcing part 130 are arranged on the upper cover body 110, both ends of the first reinforcing part 120 extend to the side edges of the upper cover body 110 respectively, and the second reinforcing parts 130 are arranged on both sides of the first reinforcing part 120 respectively, and the second reinforcing parts 130 extend to the side edges of the upper cover body 110.

[0058] It can be understood that the battery pack upper cover 100 provided by the application can be applied to the battery pack, the battery pack has a frame 300 and a battery cell group, the battery cell group can be placed in the frame 300, the upper cover body 110 is arranged on the frame 300, and the upper cover body 110 and the frame 300 are connected together through fasteners such as bolts and rivet nuts, so as to encapsulate and protect the battery cell group.

[0059] Referring to Figure 1 By arranging the first reinforcing part 120 and the second reinforcing part 130 on the upper cover body 110, the structural strength of the upper cover body 110 is improved, and the deformation resistance is improved. Moreover, the overall structure is simple, and the processing cost can be reduced.

[0060] The first reinforcing member 120 extends to the sides of the upper cover body 110 at both ends, so that the first reinforcing member 120 serves as the main reinforcing part, bearing and distributing the main load, thereby improving the structural strength of the upper cover body 110. Furthermore, second reinforcing members 130 are arranged on both sides of the first reinforcing member 120, serving as secondary auxiliary reinforcing parts, further enhancing the structural strength of the upper cover body 110, and simultaneously distributing the load applied to the upper cover body 110 more evenly, thereby reducing local stress concentration and improving the overall structural stability.

[0061] Furthermore, the two ends of the first reinforcing member 120 extend to the side of the upper cover body 110, and the second reinforcing members 130 also extend to the side of the upper cover body 110. This provides support for the side of the upper cover body 110, prevents the side edge of the upper cover body 110 from being bent by force, and improves the stability of the overall structure.

[0062] This application improves the structural strength of the upper cover body 110 by providing a first reinforcing member 120 and a second reinforcing member 130 on the upper cover body 110, with the first reinforcing member 120 as the main reinforcing part and the second reinforcing members 130 distributed on both sides of the first reinforcing member 120 as secondary auxiliary reinforcing parts. Furthermore, the overall structure is simple, reducing processing costs.

[0063] For example, the shape of the first reinforcing member 120 can be elongated, serpentine, arc-shaped or other shapes, as long as the two ends of the first reinforcing member 120 are respectively connected to the side of the cover body 110. This application does not impose too many restrictions on this.

[0064] For example, the shape of the upper cover body 110 can be rectangular, circular, parallelogram or other types of shape, and this application does not impose too many restrictions on it.

[0065] Among them, reference Figure 1 and Figure 2 As shown, the upper cover body 110 is surrounded by a connecting part 116, and the connecting part 116 is provided with a plurality of fixing holes. The upper cover body 110 abuts against the frame 300 through the connecting part 116 and is connected to the frame 300 by fasteners inserted into the fixing holes.

[0066] In some embodiments, refer to Figure 1 As shown, the first reinforcing member 120 divides the upper cover body 110 into two cover portions 111 with equal areas, and the second reinforcing member 130 is correspondingly disposed on the cover portion 111. The second reinforcing member 130 is symmetrically disposed with respect to the first reinforcing member 120.

[0067] In the above embodiments, the second reinforcing members 130 on the two cover body portions 111 are symmetrically arranged relative to the first reinforcing member 120, which can more evenly distribute the load applied on the upper cover body 110 and avoid local stress concentration, thereby improving the structural strength of the upper cover body 110.

[0068] In some embodiments, the number of the second reinforcing members 130 can be 2, 4, or 6, etc. to symmetrically arrange the second reinforcing members 130 on the two cover body portions 111.

[0069] For example, as shown in Figures 1 to 3 The first reinforcing member 120 can be a long strip, and the axis of the first reinforcing member 120 coincides with the axis of the upper cover body 110, so that the two cover body portions 111 are symmetric about the first reinforcing member 120, and the second reinforcing members 130 on the two cover body portions 111 are symmetric about the first reinforcing member 120, thereby improving the structural stability and load-bearing capacity of the upper cover body 110.

[0070] In some embodiments, as shown in Figure 1 and Figure 2 The upper cover body 110 has two oppositely arranged first side edges 112 and two oppositely arranged second side edges 113, and the first side edges 112 are connected to the second side edges 113.

[0071] The two ends of the first reinforcing member 120 are flush with the two first side edges 112, and the second reinforcing members 130 are flush with the second side edges 113.

[0072] In the above embodiments, the upper cover body 110 is a parallelogram surrounded by two oppositely arranged first side edges 112 and two oppositely arranged second side edges 113. The first reinforcing member 120 extends between the two first side edges 112 as the main reinforcing part, and its two ends extend to the two first side edges 112, respectively, and the second reinforcing members 130 extend to the second side edges 113 as the secondary auxiliary reinforcing part, thereby more effectively improving the structural strength of the upper cover body 110.

[0073] For example, as shown in Figures 1 to 3 The first reinforcing member 120 can be a long strip, and the two ends of the first reinforcing member 120 extend to the midpoints of the two first side edges 112, respectively, to divide the upper cover body 110 into two cover body portions 111 with equal areas. The number of the second reinforcing members 130 can be 4, of which 2 extend to one second side edge 113, and the other 2 extend to the other second side edge 113.

[0074] In some specific embodiments, as shown in Figures 1 to 3 The first reinforcing member 120 includes a first reinforcing portion 121 and two second reinforcing portions 122.

[0075] The first reinforcing part 121 connects to two second reinforcing parts 122, and the two second reinforcing parts 122 extend to two first side edges 112 respectively.

[0076] The width of the first reinforcing part 121 is smaller than the width of the second reinforcing part 122, and one end of the second reinforcing member 130 extends toward the first reinforcing part 121.

[0077] In the above embodiment, one end of the second reinforcing member 130 extends toward the first reinforcing part 121 with a smaller width, thereby improving the arrangement of the first reinforcing member 120 and the second reinforcing member 130 on the upper cover body 110 more compactly, increasing the distribution rate of the reinforcing part on the upper cover body 110, and thus further enhancing the structural strength of the upper cover body 110.

[0078] Among them, reference Figures 1 to 3 As shown, the central region of the cover body 110 has weak connection strength and is easily damaged by force. The first reinforcing part 121 can be provided in the central region of the cover body 110, and the second reinforcing members 130 on both sides extend toward the first reinforcing part 121, thereby increasing the distribution rate of the reinforcing part in the central region of the cover body 110 and improving the structural strength of the region.

[0079] In some specific embodiments, refer to Figure 1 and Figure 2 As shown, the battery pack cover 100 also includes at least one third reinforcement 140.

[0080] The third reinforcing member 140 is disposed at the connection between the first side 112 and the second side 113.

[0081] In the above embodiment, the third reinforcing member 140 is mainly used to provide additional support for the connection between the first side 112 and the second side 113, thereby further improving the stability of the upper cover body 110.

[0082] For example, refer to Figure 1 and Figure 2 As shown, there can be four third reinforcing members 140, which are distributed at the four corners of the parallelogram-shaped upper cover body 110.

[0083] In some embodiments, refer to Figure 1 and Figure 2 As shown, at least one of the first reinforcing member 120 and the second reinforcing member 130 is a protrusion formed on the upper cover body 110.

[0084] In the above embodiments, the first reinforcing member 120 and the second reinforcing member 130 can each be a reinforcing rib protruding from the upper cover body 110, thereby improving the stability of the connection between the upper cover body 110 and the first reinforcing member 120 and the second reinforcing member 130.

[0085] It can be understood that the third reinforcing member 140 can also be a protrusion formed on the upper cover body 110, and the upper cover body 110, the first reinforcing member 120, the second reinforcing member 130, and the third reinforcing member 140 can be integrally formed by stamping, thereby improving the processing efficiency while ensuring the structural strength.

[0086] The first reinforcing member 120, the second reinforcing member 130, and the third reinforcing member 140 on the upper cover body 110 can be designed in a simulation topology according to the layout design of the battery pack, so as to match the battery pack to achieve an optimal shape, improve the stiffness of the bottom guard plate, and enhance the overall modal of the battery pack.

[0087] In some embodiments, referring to Figures 1 to 3 , the upper cover body 110 has opposite first and second surfaces 114 and 115.

[0088] The first and second reinforcing members 120 and 130 are recessed from the first surface 114 and protrude from the second surface 115, so that part of the first surface 114 forms a mounting position for mounting a buffer 200.

[0089] In the above embodiments, the first surface 114 of the upper cover body 110 can be mounted towards the frame 300 of the battery pack, and the part of the first surface 114 that is not recessed can form a mounting position. The buffer 200 in the battery pack can be arranged on the plurality of mounting positions to assist in supporting the upper cover body 110, thereby limiting the collapse of the upper cover body 110, and reducing the movement amplitude between the upper cover body 110 and the frame 300 when the battery pack is subjected to vibration, thereby improving the NVH performance (Noise, Vibration, Harshness).

[0090] For example, referring to Figure 3 , the number of mounting positions can be multiple, and the number of buffers 200 can also be multiple, with one-to-one correspondence between the plurality of mounting positions and the plurality of buffers 200. The buffer 200 can be a foam.

[0091] In addition, referring to Figure 2 and Figure 3 , the part of the first reinforcing member 120 that is recessed on the first surface 114 can form an avoidance space 123, and the cell group, copper bar, and electrical components in the battery pack can be arranged through the avoidance space 123, thereby improving the space utilization in the battery pack.

[0092] In some embodiments, referring to Figures 1 to 3 As shown, the second reinforcing member 130 is provided with a relief gap 131, and the relief gap 131 is directed to the side edge of the upper cover body 110.

[0093] The part of the first surface 114 corresponding to the relief gap 131 is formed with a mounting position.

[0094] In the above embodiment, the part of the first surface 114 corresponding to the relief gap 131 is formed with a mounting position, so that the distribution position of the mounting position on the upper cover body 110 is more uniform, thereby improving the buffering support of the buffer 200 to the upper cover body 110.

[0095] And, referring to Figure 1 As shown, the second reinforcing member 130 protrudes outwardly from the second surface 115, and the relief gap 131 is directed to the side edge of the upper cover body 110, so that water accumulation on the second surface 115 of the upper cover body 110 can be avoided, and rainwater can be guided to drain through the relief gap 131.

[0096] Referring to Figure 1 and Figure 4 As shown, the application provides a battery pack, which comprises a frame 300 and the battery pack upper cover 100 as above, and the battery pack upper cover 100 is arranged on the frame 300.

[0097] In the embodiment of the application, since the battery pack adopts the battery pack upper cover 100 in the above embodiment, it also has the advantages and benefits brought by the battery pack upper cover 100, that is, by arranging the first reinforcing member 120 and the second reinforcing member 130 on the upper cover body 110, taking the first reinforcing member 120 as the main reinforcing part, and taking the second reinforcing member 130 distributed on both sides of the first reinforcing member 120 as the secondary auxiliary reinforcing part, so as to more effectively improve the structural strength of the upper cover body 110. And the overall structure is simple, which can reduce the processing cost.

[0098] The application provides a vehicle, which comprises a vehicle body and the battery pack as above, and the battery pack is arranged in the vehicle body.

[0099] In the above structure, since the vehicle adopts the battery pack in the above embodiment, it also has the advantages and benefits brought by the battery pack, which will not be described here.

[0100] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the application be construed as including any patern, process, method, technique, composition of matter, or device directly or indirectly

[0101] It is to be understood that the application is not limited to the precise construction hereinafter described and as shown in the attached drawings, and that various changes in form and detail can be made therein without departing from the scope thereof. The scope of the application should only be limited by the appended claims.

Claims

1. A battery pack upper cover, characterized by, The upper cover body (110), the first reinforcing member (120) and the at least two second reinforcing members (130) are provided; The first reinforcing member (120) and the second reinforcing member (130) are arranged on the upper cover body (110), two ends of the first reinforcing member (120) respectively correspond to extend to the side edges of the upper cover body (110), and the second reinforcing members (130) are arranged on the two sides of the first reinforcing member (120) respectively, and the second reinforcing members (130) extend to the side edges of the upper cover body (110).

2. The battery pack upper cover according to claim 1, wherein, The first reinforcing member (120) divides the upper cover body (110) into two cover body parts (111) with equal areas, and the second reinforcing members (130) are arranged on the cover body parts (111) correspondingly, and the second reinforcing members (130) are arranged symmetrically relative to the first reinforcing member.

3. The battery pack upper cover according to claim 2, characterized in that, The upper cover body (110) has two first side edges (112) arranged oppositely and two second side edges (113) arranged oppositely, and the first side edges (112) are connected with the second side edges (113); Two ends of the first reinforcing member (120) are flush with the two first side edges (112) respectively, and the second reinforcing members (130) are flush with the second side edges (113).

4. The battery pack upper cover according to claim 3, characterized in that, The first reinforcing member (120) comprises a first reinforcing part (121) and two second reinforcing parts (122); The first reinforcing part (121) connects the two second reinforcing parts (122), and the two second reinforcing parts (122) extend to the two first side edges (112) respectively; The width of the first reinforcing part (121) is smaller than the width of the second reinforcing part (122), and one end of the second reinforcing member (130) extends towards the first reinforcing part (121).

5. The battery pack upper cover according to claim 3, characterized in that, At least one third reinforcing member (140) is further included; The third reinforcing member (140) is arranged at the connection between the first side edge (112) and the second side edge (113).

6. The battery pack upper cover according to any one of claims 1 to 5, characterized in that, At least one of the first reinforcing member (120) and the second reinforcing member (130) is a protrusion formed on the upper cover body (110).

7. The battery pack upper cover according to claim 6, characterized in that, The upper cover body (110) has a first surface (114) and a second surface (115) arranged oppositely; The first reinforcing member (120) and the second reinforcing member (130) are recessed from the first surface (114) and protrude outwardly from the second surface (115), so that part of the first surface (114) forms a mounting position, and the mounting position is used for mounting a buffer member (200).

8. The battery pack upper cover according to claim 7, characterized in that, An avoiding gap (131) is arranged on the second reinforcing member (130), and the avoiding gap (131) faces the side edge of the upper cover body (110); Part of the area of the first surface (114) corresponding to the avoiding gap (131) forms the mounting position.

9. A battery pack, characterized by, The battery pack upper cover (100) is arranged on the frame (300).

10. A vehicle characterized by comprising: A vehicle including a vehicle body and a battery pack as recited in claim 9, the battery pack disposed within the vehicle body.

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