Connecting structure of middle channel reinforcing plate and battery pack and vehicle

Abstract

The utility model provides a connecting structure of a middle channel reinforcing plate and a battery pack and a vehicle, and relates to the technical field of vehicles. The connecting structure of the middle channel reinforcing plate and the battery pack comprises the battery pack and the middle channel reinforcing plate, the battery pack is configured to form a vehicle body floor of the vehicle body structure; the middle channel reinforcing plate is used for being connected with a front wall lower plate of the vehicle and extends to the battery pack. A first connecting part is arranged on the middle channel reinforcing plate, a plurality of connecting tables are arranged on the battery pack, the first connecting part is placed on the connecting tables, so that a gap is formed between the bottom surface, close to the battery pack, of the middle channel reinforcing plate and the battery pack, a first fixing part is arranged on the first connecting part, and the first fixing part penetrates through the first connecting part to be connected with the connecting tables. According to the connecting structure, the contact area between the middle channel reinforcing plate and the battery pack is reduced, so that the mounting problem caused by an overlarge lap joint area is avoided.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a connection structure between a central channel reinforcement plate and a battery pack, and a vehicle. Background Art

[0002] With the development of new energy vehicles, significant progress has been made in technology development and market penetration in recent years. Battery technology, as the core part of electric vehicles, is also constantly innovating and optimizing.

[0003] Battery pack technology has evolved from cell-to-pack (CTP) to cell-to-body (CTB). By integrating the battery pack with the vehicle's body structure, CTB reduces the need for independent space, allowing the pack to fit more closely within the vehicle's body, thereby reducing the vehicle's overall size. In traditional vehicle construction, the vehicle's center tunnel reinforcement plate is bolted or welded to the vehicle floor and connected to the seat crossbar.

[0004] However, in the traditional installation method, the vehicle's center channel reinforcement plate is directly placed on the vehicle body floor and fixed. The contact area between the center channel reinforcement plate and the battery pack is large, which can easily cause improper assembly between the center channel reinforcement plate and the battery pack, which is not conducive to the installation of the center channel reinforcement plate on the CTB structure. Utility Model Content

[0005] The present application provides a connection structure between a middle channel reinforcement plate and a battery pack and a vehicle, so as to solve the problem that the contact area between the middle channel reinforcement plate and the battery pack is large, which easily causes improper assembly.

[0006] On the one hand, the present application provides a connection structure between a middle channel reinforcement plate and a battery pack, comprising a battery pack and a middle channel reinforcement plate;

[0007] The battery pack is configured to constitute a vehicle body floor of the vehicle body structure; the center channel reinforcement plate is used to connect with the front lower panel of the vehicle and extend onto the battery pack;

[0008] A first connecting portion is provided on the middle channel reinforcement plate, and a plurality of connecting platforms are provided on the battery pack. The first connecting portion is placed on the connecting platform so that there is a gap between the bottom surface of the middle channel reinforcement plate close to the battery pack and the battery pack. A first fixing member is provided on the first connecting portion, and the first fixing member is connected to the connecting platform through the first connecting portion.

[0009] In some embodiments, the first connection portion is located on the bottom surface of the middle channel reinforcement plate close to the battery pack, and first connection portions are provided on both sides of the middle channel reinforcement plate.

[0010] In some embodiments, the connecting platform is disposed on the battery pack, and a top plane of the connecting platform protrudes from a top plane of the battery pack.

[0011] In some embodiments, a seat crossbeam is integrated on the battery pack, and a second connecting portion is provided on the middle channel reinforcement plate. The second connecting portion is located at the end of the middle channel reinforcement plate close to the seat crossbeam, and the second connecting portion extends above the seat crossbeam and is connected to the seat crossbeam.

[0012] In some embodiments, a second fixing member is provided on the second connecting portion, and the second fixing member passes through the second connecting portion and is connected to the seat cross beam.

[0013] In some embodiments, there is an installation gap between the central channel reinforcement plate and the seat cross beam.

[0014] In some embodiments, the end of the middle channel reinforcement plate close to the seat cross beam is set as a slope, the distance from the end of the slope away from the battery pack to the front lower plate is a first distance, and the distance from the end of the slope close to the battery pack to the front lower plate is a second distance, and the first distance is greater than the second distance.

[0015] In some embodiments, the angle between the inclined surface and the vertical direction is greater than or equal to 10° and less than or equal to 15°.

[0016] In some embodiments, the number of the connection stations is at least two.

[0017] On the other hand, the present application provides a vehicle, including the above-mentioned connection structure between the middle channel reinforcement plate and the battery pack.

[0018] The present application provides a connection structure between a central channel reinforcement plate and a battery pack, and a vehicle. The connection structure between the central channel reinforcement plate and the battery pack is achieved by providing a connection platform on the battery pack, providing a first connection portion on the central channel reinforcement plate, and placing the first connection portion on the connection platform to create a gap between the central channel reinforcement plate and the battery pack. The first connection portion is then fixed to the connection platform by a first fixing member to achieve a fixed connection between the central channel reinforcement plate and the battery pack. The connection platform elevates the central channel reinforcement plate to reduce the contact area between the central channel reinforcement plate and the battery pack, thereby reducing the possibility of improper assembly and partial non-fitting between the central channel reinforcement plate and the battery pack during assembly, thereby facilitating the installation of the central channel reinforcement plate on the CTB structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0020] Figure 1 A schematic diagram of the structure of the connection structure between the middle channel reinforcement plate and the battery pack provided in an embodiment of the present application;

[0021] Figure 2 for Figure 1 Schematic diagram of the structure of the battery pack;

[0022] Figure 3 for Figure 1 Schematic diagram of the structure of the center channel reinforcement plate;

[0023] Figure 4 for Figure 1 Schematic diagram of the local structure of the middle channel reinforcement plate.

[0024] Description of reference numerals:

[0025] 100. Battery pack; 110. Connecting platform; 120. Seat crossbeam; 121. Connecting hole; 200. Center channel reinforcement plate; 210. First connecting portion; 220. Second connecting portion; 230. Inclined surface; 300. Front lower panel; 400. First fixing member; 500. Second fixing member.

[0026] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0027] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0028] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0029] In this application, unless otherwise specified or limited, the terms "installed," "connected," "fixed," and the like should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication between them; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0031] Cell to Pack (CTP) technology is a battery pack integration technology that directly integrates cells into the battery pack, skipping the traditional module link, thereby improving space utilization and energy density.

[0032] Cell to Body (CTB) technology is a technology that directly integrates the battery pack into the vehicle body structure, using the upper cover of the battery pack as the body floor.

[0033] With the development of new energy vehicles, significant progress has been made in technology development and market penetration in recent years. Battery technology, as the core part of electric vehicles, is also constantly innovating and optimizing.

[0034] Battery pack technology has evolved from cell-to-pack (CTP) to cell-to-body (CTB). By integrating the battery pack with the vehicle's body structure, CTB reduces the need for independent space, allowing the pack to fit more closely within the vehicle's body, thereby reducing the vehicle's overall size. In traditional vehicle construction, the vehicle's center tunnel reinforcement plate is bolted or welded to the vehicle floor and connected to the seat crossbar.

[0035] However, in the traditional installation method, the vehicle's center channel reinforcement plate is directly placed on the vehicle body floor and fixed. The contact area between the center channel reinforcement plate and the battery pack is large, which can easily cause improper assembly and is not conducive to the installation of the center channel reinforcement plate on the CTB structure.

[0036] In order to solve the above problems, the present application provides a connection structure between a central channel reinforcement plate and a battery pack and a vehicle. The connection structure between the central channel reinforcement plate and the battery pack is achieved by providing a connection platform on the battery pack, providing a first connection portion on the central channel reinforcement plate, and placing the first connection portion on the connection platform so that there is a gap between the central channel reinforcement plate and the battery pack. The first connection portion is then fixed to the connection platform by a first fixing member to achieve the connection and fixation between the central channel reinforcement plate and the battery pack. The connection platform lifts the central channel reinforcement plate to reduce the contact area between the central channel reinforcement plate and the battery pack, thereby reducing the situation where the central channel reinforcement plate and the battery pack are not properly assembled or partially not fitted during the assembly process, so as to facilitate the installation of the central channel reinforcement plate on the CTB structure.

[0037] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0038] On the one hand, the present application provides a connection structure between a middle channel reinforcement plate and a battery pack, referring to Figures 1 to 4 , the connection structure between the middle channel reinforcement plate and the battery pack includes a battery pack 100 and a middle channel reinforcement plate 200;

[0039] The battery pack 100 is configured to constitute the vehicle body floor of the vehicle body structure; the center channel reinforcement plate 200 is used to connect with the front lower panel 300 of the vehicle and extend onto the battery pack 100;

[0040] A first connecting portion 210 is provided on the middle channel reinforcement plate 200, and a plurality of connecting platforms 110 are provided on the battery pack 100. The first connecting portion 210 is placed on the connecting platform 110 so that there is a gap between the bottom surface of the middle channel reinforcement plate 200 close to the battery pack 100 and the battery pack 100. A first fixing member 400 is provided on the first connecting portion 210, and the first fixing member 400 passes through the first connecting portion 210 and is connected to the connecting platform 110.

[0041] Specifically, one end of the center channel reinforcement plate 200 is fixed to the front lower panel 300, and together with the front lower panel 300, it forms a partial structure of the lower vehicle body assembly. The center channel reinforcement plate 200 and the front lower panel 300 are fixed by welding.

[0042] The connection between the connecting platform 110 on the upper shell of the battery pack 100 and the first connecting portion 210 on the central channel reinforcement plate 200 ensures the connection strength between the central channel reinforcement plate 200 and the battery pack 100, meeting collision safety requirements. At the same time, a mounting gap is provided between the battery pack 100 and the central channel reinforcement plate 200, reducing the contact area.

[0043] During the bottom-up assembly of the battery pack 100, manufacturing errors are taken into consideration to avoid the problem of improper assembly caused by large-area adhesion between the upper shell of the battery pack 100 and the matching area of ​​the middle channel reinforcement plate 200 during the installation of the battery pack 100. A safety gap is reserved for the assembly of the battery pack 100 in the height direction of the vehicle body, while ensuring the connection strength between the middle channel reinforcement plate 200 and the battery pack 100, and increasing the connection points.

[0044] In some embodiments, reference Figure 1 The first connection portion 210 is located on the bottom surface of the middle channel reinforcement plate 200 close to the battery pack 100 , and the first connection portion 210 is provided on both sides of the middle channel reinforcement plate 200 .

[0045] The first connection portions 210 are flanges on both sides of the central channel reinforcement plate 200. They are located on the central channel reinforcement plate 200 near the bottom of the battery pack 100 and extend outward from the central channel reinforcement plate 200. The first connection portions 210 are provided on both sides of the central channel reinforcement plate 200 to increase the number of connection points between the central channel and the battery panels, improving the connection strength.

[0046] The middle channel reinforcement plate 200 is a groove-shaped or U-shaped structure, and the first connecting portion 210 and the middle channel reinforcement plate 200 are integrally formed.

[0047] There are at least two connecting platforms 110 , which are respectively connected to the first connecting portions 210 on both sides of the middle channel reinforcement plate 200 .

[0048] In this embodiment, four connecting platforms 110 are provided. These connecting platforms 110 are symmetrically arranged on either side of the central channel reinforcement plate 200, respectively, to connect to the first connecting portions 210 on either side. In other embodiments, a different number of connecting platforms 110 may be provided based on practical needs to ensure connection strength.

[0049] For example, refer to Figure 1 and Figure 3 The first fixing members 400 are bolts or screws, and the number of first fixing members 400 corresponds to the number of connecting platforms 110. The first connecting portion 210 has a plurality of through holes, through which the first fixing members 400 pass through the through holes and are threadedly connected to the connecting platform 110 to secure the first connecting portion 210 to the connecting platform 110.

[0050] Furthermore, the connecting platform 110 is integrally formed with the upper shell of the battery pack 100. A threaded hole is provided on the connecting platform 110 for threaded connection with the first fixing member 400.

[0051] In some embodiments, reference Figure 2 The connecting platform 110 is disposed on the battery pack 100 , and the top plane of the connecting platform 110 protrudes from the top plane of the battery pack 100 .

[0052] The connecting platform 110 protrudes from the top of the battery pack 100. When the first connecting portion 210 is installed on the connecting platform 110, there is a gap between the bottom surface of the middle channel reinforcement plate 200 close to the battery pack 100 and the battery pack 100. On the one hand, it provides an installation gap for the connection between the battery pack 100 and the middle channel. On the other hand, it reduces the contact area between the middle channel reinforcement plate 200 and the battery pack 100.

[0053] In some embodiments, reference Figure 1 The battery pack 100 is integrated with the seat cross beam 120, and a second connecting portion 220 is provided on the middle channel reinforcement plate 200. The second connecting portion 220 is located at the end of the middle channel reinforcement plate 200 close to the seat cross beam 120. The second connecting portion 220 extends above the seat cross beam 120 and is connected to the seat cross beam 120.

[0054] The seat crossbar 120 is integrated into the upper housing of the battery pack 100. It runs along the width of the vehicle, while the center channel reinforcement plate 200 runs along the length of the vehicle. Therefore, the center channel reinforcement plate 200 is perpendicular to the seat crossbar 120. In this embodiment, the seat crossbar 120 is a through-type structure, with the ends of the center channel reinforcement plate 200 connected to the nearest seat crossbar 120. This ensures vehicle body structural strength and meets the vehicle's collision safety requirements.

[0055] The second connecting portion 220 is located on the top of the central channel reinforcement plate 200, away from the battery pack 100, and extends above the seat crossbar 120 to connect there. The second connecting portion 220 is parallel to the top of the seat crossbar 120, away from the battery pack 100. In this embodiment, the top plane of the seat crossbar 120 has a certain inclination angle, and the second connecting portion 220 is adaptively set to an inclination angle that matches the top plane of the seat crossbar 120.

[0056] In some embodiments, a second fixing member 500 is provided on the second connecting portion 220 , and the second fixing member 500 passes through the second connecting portion 220 and is connected to the seat cross beam 120 .

[0057] A plurality of second fixing members 500 are provided to improve the connection stability between the second connecting portion 220 and the seat cross beam 120 .

[0058] Exemplarily, the second fixing member 500 is a bolt or screw, and the seat cross member 120 is provided with a plurality of threaded connection holes 121. The second connecting portion 220 is provided with a plurality of through holes, allowing the second fixing member 500 to pass through the through holes and threadably connect with the connection holes 121 in the seat cross member 120, thereby securing the second connecting portion 220 to the seat cross member 120.

[0059] Furthermore, the second connecting portion 220 and the middle channel reinforcement plate 200 are integrally formed.

[0060] In some embodiments, there is an installation gap between the central channel reinforcement plate 200 and the seat cross beam 120 .

[0061] The installation gap between the end of the middle channel reinforcement plate 200 and the seat cross beam 120 is conducive to the installation connection between the battery pack 100 structure and the seat cross beam 120.

[0062] In some embodiments, reference Figure 3 and Figure 4 The end of the middle channel reinforcement plate 200 close to the seat cross beam 120 is set as a slope 230, and the distance from the end of the slope 230 away from the battery pack 100 to the front lower plate 300 is a first distance, and the distance from the end of the slope 230 close to the battery pack 100 to the front lower plate 300 is a second distance, and the first distance is greater than the second distance.

[0063] The inclined surface 230 is adapted to the side wall of the seat crossbar 120 , so that during installation, the seat crossbar 120 can be gradually moved upward from the largest gap until it is fully installed, thereby facilitating the positioning and insertion of the seat crossbar 120 onto the battery pack 100 .

[0064] In some embodiments, reference Figure 4 The angle between the inclined surface 230 and the vertical direction is greater than or equal to 10° and less than or equal to 15°.

[0065] The angle between the inclined surface 230 and the vertical direction is a, wherein 10°≤a≤15°. For example, the inclination angle a of the inclined surface 230 can be 10°, 11°, 12°, 13°, 14°, or 15°.

[0066] On the other hand, the present application provides a vehicle, including the above-mentioned connection structure between the middle channel reinforcement plate and the battery pack.

[0067] Among them, the connection structure between the middle channel reinforcement plate and the battery pack in this embodiment is the same as the connection structure between the middle channel reinforcement plate and the battery pack provided in any of the above embodiments, and can bring the same or similar technical effects. They will not be described one by one here, and please refer to the description of the above embodiments for details.

[0068] The present application provides a vehicle in which a connection platform 110 is provided on a battery pack 100, a first connection portion 210 is provided on a central channel reinforcement plate 200, and the first connection portion 210 is placed on the connection platform 110 to create a gap between the central channel reinforcement plate 200 and the battery pack 100. The first connection portion 210 is then fixed to the connection platform 110 via a first fixing member 400 to achieve a connection and fixation between the central channel reinforcement plate 200 and the battery pack 100. The connection platform 110 elevates the central channel reinforcement plate 200, reducing the contact area between the central channel reinforcement plate 200 and the battery pack 100. This reduces the possibility of improper assembly or partial non-fitting between the central channel reinforcement plate 200 and the battery pack 100 during assembly, thereby facilitating installation of the central channel reinforcement plate 200 on the CTB structure.

[0069] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the present invention. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered merely as exemplary, and the true scope and spirit of the present invention are indicated by the following claims.

[0070] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A connection structure between a central channel reinforcement plate and a battery pack, characterized in that: It includes a battery pack (100) and a middle channel reinforcement plate (200); The battery pack (100) is configured to constitute a vehicle body floor of a vehicle body structure; the central channel reinforcement plate (200) is used to connect to the front lower plate (300) of the vehicle and extend onto the battery pack (100); The middle channel reinforcement plate (200) is provided with a first connecting portion (210), and the battery pack (100) is provided with a plurality of connecting platforms (110). The first connecting portion (210) is placed on the connecting platforms (110) so that a gap exists between the bottom surface of the middle channel reinforcement plate (200) close to the battery pack (100) and the battery pack (100); a first fixing member (400) is provided on the first connecting portion (210), and the first fixing member (400) passes through the first connecting portion (210) and is connected to the connecting platform (110).

2. The connection structure between the middle channel reinforcement plate and the battery pack according to claim 1, characterized in that: The first connection portion (210) is located on the bottom surface of the middle channel reinforcement plate (200) close to the battery pack (100), and the first connection portion (210) is provided on both sides of the middle channel reinforcement plate (200).

3. The connection structure between the middle channel reinforcement plate and the battery pack according to claim 1, characterized in that: The connecting platform (110) is arranged on the battery pack (100), and the top plane of the connecting platform (110) protrudes from the top plane of the battery pack (100).

4. The connection structure between the middle channel reinforcement plate and the battery pack according to any one of claims 1 to 3, characterized in that: A seat crossbeam (120) is integrated on the battery pack (100), and a second connecting portion (220) is provided on the middle channel reinforcement plate (200). The second connecting portion (220) is located at an end of the middle channel reinforcement plate (200) close to the seat crossbeam (120), and the second connecting portion (220) extends above the seat crossbeam (120) and is connected to the seat crossbeam (120).

5. The connection structure between the middle channel reinforcement plate and the battery pack according to claim 4, characterized in that: A second fixing member (500) is provided on the second connecting portion (220), and the second fixing member (500) passes through the second connecting portion (220) and is connected to the seat crossbeam (120).

6. The connection structure between the middle channel reinforcement plate and the battery pack according to claim 4, characterized in that: There is an installation gap between the central channel reinforcement plate (200) and the seat crossbeam (120).

7. The connection structure between the middle channel reinforcement plate and the battery pack according to claim 4, characterized in that: An end portion of the central channel reinforcement plate (200) close to the seat crossbeam (120) is provided as an inclined surface (230), a distance from an end of the inclined surface (230) away from the battery pack (100) to the front lower plate (300) is a first distance, and a distance from an end of the inclined surface (230) close to the battery pack (100) to the front lower plate (300) is a second distance, wherein the first distance is greater than the second distance.

8. The connection structure between the middle channel reinforcement plate and the battery pack according to claim 7, characterized in that: The angle between the inclined surface (230) and the vertical direction is greater than or equal to 10° and less than or equal to 15°.

9. The connection structure between the middle channel reinforcement plate and the battery pack according to any one of claims 1 to 3, characterized in that: The number of the connecting platforms (110) is at least two.

10. A vehicle, characterized in that: It includes a connection structure between a middle channel reinforcement plate and a battery pack as described in any one of claims 1 to 9.

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