A power battery upper cover, a power battery and a vehicle

By setting support frames and elastic support components on the edge of the power battery casing, the problem of direct pressure on the top cover of the power battery is solved, achieving improved safety and lightweight design.

CN117525721BActive Publication Date: 2026-08-04CHERY AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHERY AUTOMOBILE CO LTD
Filing Date
2023-11-03
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing technologies, the top cover of the power battery is directly fixed to the seat crossbeam, which causes pressure on the battery cells and can easily lead to safety accidents.

Method used

The seat is supported by the frame of the power battery casing, and the seat frame is supported by a support frame and elastic support members to avoid being directly fixed to the top cover plate. A shock absorption device is also set to reduce the transmission of vibration.

Benefits of technology

It effectively prevents pressure on the top cover and battery cells, reduces vibration caused by the seat, improves the safety of the power battery, and reduces the overall weight to meet the lightweight design of the whole vehicle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a power battery upper cover, a power battery and a car, which comprise an upper cover plate, a seat support and a plurality of supporting frames, the plurality of supporting frames are arranged on the upper cover plate, the seat support is fixed on the plurality of supporting frames, and a gap exists between the lower surface of the seat support and the upper surface of the upper cover plate; the seat support is used for being connected with a seat, and the plurality of supporting frames can be fixed on the frame of a power battery shell. The frame of the power battery shell can provide support for the seat, so that the upper cover plate and the battery cell are prevented from being pressed, and in turn, the occurrence of safety accidents is prevented.
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Description

Technical Field

[0001] This invention relates to the field of new energy electric vehicle technology, and in particular to a power battery cover, a power battery, and a vehicle. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] According to the new assembly process for new energy electric vehicles, the entire vehicle body, including the driver and passenger seats, center console, storage compartments, cup holders, rear air conditioning vents, air ducts, carpets / trimmed panels, etc., must be installed on the power battery.

[0004] The current method involves directly fixing the seat crossbeam to the top cover of the power battery, which puts pressure on the top cover and consequently on the battery cells, potentially leading to safety accidents. Summary of the Invention

[0005] In order to solve the above problems, the present invention proposes a power battery cover, a power battery and a car, which can provide support for the seat through the frame of the power battery casing, thereby preventing the cover and the battery cell from being compressed, and thus preventing safety accidents.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] In the first aspect, a power battery cover is proposed, including a cover plate, a seat bracket and multiple support frames. The multiple support frames are all disposed on the cover plate, the seat bracket is fixed on the multiple support frames, and there is a gap between the lower surface of the seat bracket and the upper surface of the cover plate. The seat bracket is used to connect with the seat, and the multiple support frames can be fixed on the frame of the power battery housing.

[0008] Furthermore, the seat support includes multiple bending frames, each with a flange, and the multiple bending frames are connected sequentially through the flanges.

[0009] Furthermore, the support frame is a bent component, and a flange is provided on the edge of the bent component.

[0010] Furthermore, a slot is provided in the middle of the support frame to penetrate the support frame.

[0011] Furthermore, it includes two support frames, which are symmetrically arranged on the upper cover plate. The two support frames can be connected to two symmetrical crossbeams on the frame of the power battery casing, respectively.

[0012] Furthermore, it includes three support frames, two of which are symmetrically arranged and can be connected to two symmetrical crossbeams of the frame of the power battery housing respectively; the third support frame is located between the two support frames and can be connected to the grid beam of the frame of the power battery housing.

[0013] Furthermore, it also includes an elastic support member, one end of which is connected to the upper cover plate and the other end to the seat bracket. The position of the elastic support member corresponds to the position of the middle crossbeam of the frame.

[0014] Furthermore, a shock-absorbing device is installed between the support frame and the upper cover plate.

[0015] Secondly, a power battery is proposed, including a power battery cover proposed in the first aspect.

[0016] Thirdly, a vehicle is proposed, which includes a power battery proposed in the second aspect.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. The present invention supports the seat bracket with a support frame, so that there is a gap between the seat bracket and the upper surface of the cover plate, and the support frame can be connected to the frame of the power battery housing. Thus, the seat can be supported only through the frame of the power battery housing, thereby preventing the upper cover plate and the battery cell from being compressed, and thus preventing the occurrence of safety accidents.

[0019] 2. This invention supports the seat bracket with a support frame instead of fixing the seat bracket directly to the upper cover plate. A shock-absorbing device is set between the support frame and the upper cover plate. The support frame and the shock-absorbing device can achieve a certain shock absorption effect. While preventing the battery cell from being compressed, it can effectively reduce the vibration of the battery cell caused by the seat and further improve the safety of the power battery.

[0020] 3. The present invention also includes an elastic support member to support the seat frame. The position of the elastic support member corresponds to the position of the middle crossbeam of the frame of the power battery housing. In addition to providing support for the seat through the frame of the power battery housing, the invention also increases the shock absorption effect and improves the safety of the power battery.

[0021] 4. Both the support frame and the seat bracket of the present invention are bent, which reduces the overall weight while meeting the strength requirements, and conforms to the principle of strengthening the design of the whole vehicle.

[0022] Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0024] Figure 1 This is a schematic diagram of the overall structure of the top cover as disclosed in the embodiment;

[0025] Figure 2 This embodiment discloses a schematic diagram showing the connection between three support frames and a seat bracket;

[0026] Figure 3 The embodiment discloses a front view showing the connection of three support frames and a seat bracket;

[0027] Figure 4 A top view showing the connection of three support frames and a seat bracket is disclosed for an embodiment;

[0028] Figure 5 This embodiment discloses a schematic diagram showing the connection between two support frames and a seat bracket;

[0029] Figure 6 The embodiment discloses a front view showing the connection between two support frames and a seat bracket;

[0030] Figure 7 The embodiment discloses a top view showing the connection between two support frames and a seat bracket.

[0031] The components include: 1. Seat bracket, 2. Support frame, and 3. Top cover. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0034] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] Example 1

[0036] In this embodiment, a power battery cover is disclosed, such as... Figure 1As shown, it includes an upper cover plate 3, a seat bracket 1, and multiple support frames 2. The multiple support frames 2 are all disposed on the upper cover plate 3. The seat bracket 1 is fixed on the multiple support frames 2, and there is a gap between the lower surface of the seat bracket 1 and the upper surface of the upper cover plate 3. The seat bracket 1 is used to connect with the seat, and the multiple support frames 2 can be fixed on the frame of the power battery housing.

[0037] like Figures 5-7 As shown, when the frame of the power battery casing has no grid beam or intermediate crossbeam, this embodiment includes two support frames 2, which are symmetrically arranged on the upper cover plate 3. Each support frame 2 can be connected to one of the two symmetrical crossbeams of the power battery casing frame. The two symmetrical crossbeams of the power battery casing frame provide support for the seat, preventing pressure on the upper cover plate 3.

[0038] like Figures 2-4 As shown, when there is a grid beam in the middle of the frame of the power battery casing, this embodiment includes three support frames 2, all of which are mounted on the upper cover plate 3. Two support frames 2 are symmetrically arranged and can be connected to two symmetrical crossbeams of the power battery casing frame, respectively. The third support frame 2 is located between the two support frames and can be connected to the grid beam of the power battery casing frame. The two symmetrical crossbeams of the power battery casing frame and the crossbeams of the grid beam provide support for the seat, preventing pressure on the upper cover plate 3.

[0039] When there is a middle crossbeam in the middle of the frame of the power battery casing, this embodiment includes two support frames 2, which are symmetrically arranged on the upper cover plate 3. The seat bracket 1 is fixed on the two support frames 2. The two support frames 2 can be connected to the two symmetrical crossbeams of the frame of the power battery casing respectively. In addition, it also includes an elastic support member. One end of the elastic support member is connected to the upper cover plate, and the other end is connected to the seat bracket. The position of the elastic support member corresponds to the position of the middle crossbeam of the frame. It can provide support for the seat through the middle crossbeam to prevent the upper cover plate 3 from being compressed. It can also dampen vibrations through the elastic support member to prevent the vibration generated by the seat from being transmitted to the upper cover plate 3 and the battery cell, thereby adversely affecting the safety of the battery cell.

[0040] Preferably, the elastic support can be a spring.

[0041] In this embodiment, to facilitate installation and maintenance and to provide a certain shock absorption effect to the top cover, the support frame and the frame of the power battery housing are detachably connected, and the seat bracket and the support frame are detachably connected.

[0042] Preferably, the support frame and the edge of the power battery housing are connected by bolts, the seat bracket and the support frame are connected by bolts, and the bolts are fixed by limit buckles.

[0043] In addition, in order to improve the shock absorption function of the battery cover disclosed in this embodiment and prevent the vibration generated by the seat from being transmitted to the cover plate and the battery cell, thus having an adverse effect on the battery cell, in addition to setting up an elastic support member, a shock absorption device is also set between the support frame and the cover plate.

[0044] Preferably, the shock absorption device is a shock absorption pad, etc.

[0045] In this embodiment, both the seat bracket and the support frame are bent structural components. The seat bracket includes multiple bending frames, each of which has a flange, and the multiple bending frames are connected sequentially through the flanges.

[0046] The seat bracket in this embodiment uses a new composite material, which better conforms to the principle of lightweight vehicle design. The seat bracket can be a one-piece structure or a separate structure. When it is a separate structure, such as... Figure 2 , Figure 4 As shown, it includes multiple seat brackets 1, which are arranged side by side and span multiple support frames 2.

[0047] Each seat bracket 1 includes multiple bending frames, which are U-shaped bending frames. The two sides of the U-shaped bending frame are provided with flanges. The flanges of adjacent bending frames are connected, so that multiple bending frames are connected in sequence to form the seat bracket 1. The seat bracket 1 is connected to the support frame through the flanges.

[0048] When multiple seat brackets 1 are included, the flanges of adjacent seat brackets 1 are connected, so that multiple seat brackets 1 are connected in parallel.

[0049] By setting the seat bracket 1 as a bent part, the seat bracket 1 meets the strength requirements of the seat and, on this basis, reduces the overall weight of the seat bracket, thus meeting the principle of lightweighting.

[0050] The support frame in this embodiment is a bent piece, and a flange is provided on the edge of the bent piece.

[0051] Preferably, the support frame 2 is a U-shaped bent piece, and a flange is provided on the edge of the U-shaped bent piece. The length direction of the U-shaped bent piece is consistent with the length direction of the crossbeam supporting the frame of the support frame.

[0052] The support frame 2 is connected to the crossbeam or grid beam of the frame of the power battery casing by means of a flange.

[0053] In addition, this embodiment also provides a through slot in the middle of the support frame.

[0054] like Figure 3 , Figure 4As shown, the slot extends through both sides of the U-shaped bent piece, and the slot is trapezoidal, with the bottom of the slot forming the top, the outer opening forming the bottom, and the wall forming the waist. This trapezoidal slot design, while maintaining the support strength of the support frame, also reduces its overall weight, achieving a lightweight design. Furthermore, the slot can buffer vibrations generated by the seat, reducing the vibration transmitted from the seat bracket to the upper cover and battery cells, thus improving battery safety.

[0055] This embodiment discloses a power battery cover that supports a seat bracket via a support frame, creating a gap between the seat bracket and the upper surface of the cover. The support frame connects to the frame of the power battery casing, providing support for the seat solely through the battery casing's frame. This prevents pressure on the cover and battery cells, thus preventing safety accidents. Furthermore, by mounting the vehicle seat on the power battery cover, the vehicle assembly becomes a modular assembly during subsequent vehicle assembly, with the seat resting on the power battery.

[0056] This embodiment innovates the vehicle assembly method by implementing modular installation. Given the current limitations of battery technology in terms of resistance to compressive forces, it saves space on the vehicle floor by integrating the power battery system cover with the vehicle's top cover, thus ensuring that the power battery cover and cells are not subjected to stress.

[0057] Example 2

[0058] In this embodiment, a power battery is disclosed, including a power battery cover disclosed in Embodiment 1.

[0059] Example 3

[0060] In this embodiment, a vehicle is disclosed, including a power battery disclosed in Embodiment 2.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A power battery upper cover, characterized in that, It includes a top cover plate, a seat bracket, elastic support components and multiple support frames. The multiple support frames are all set on the top cover plate, the seat bracket is fixed on the multiple support frames, and there is a gap between the lower surface of the seat bracket and the upper surface of the top cover plate. The seat bracket is used to connect to the seat, and multiple support brackets can be fixed to the frame of the power battery casing; A slot is provided in the middle of the support frame to pass through the support frame; One end of the elastic support is connected to the top cover plate, and the other end is connected to the seat bracket. The position of the elastic support corresponds to the position of the middle crossbeam of the frame. A shock-absorbing device is installed between the support frame and the top cover plate.

2. The power battery upper cover according to claim 1, characterized in that, The seat frame includes multiple bending frames, each with a flange, and the multiple bending frames are connected in sequence through the flanges.

3. The power battery upper cover according to claim 1, characterized in that, The support frame is a bent piece, and a flange is provided on the edge of the bent piece.

4. The power battery upper cover of claim 1, wherein, It includes two support frames, which are symmetrically arranged on the upper cover plate. The two support frames can be connected to two symmetrical crossbeams on the frame of the power battery casing, respectively.

5. A power battery cover as described in claim 1, characterized in that, It includes three support frames. Two support frames are symmetrically arranged and can be connected to two symmetrical crossbeams of the frame of the power battery housing, respectively. The third support frame is located between the two support frames and can be connected to the grid beam of the frame of the power battery housing.

6. A power battery, comprising a power battery cover as described in any one of claims 1-5.

7. A vehicle comprising a power battery as described in claim 6.