Battery lower box body structure and vehicle

Abstract

The utility model is applied to the technical field of vehicles, and discloses a battery lower box body structure and a vehicle, the battery lower box body structure comprises a box body and a supporting frame, the box body is arranged on the supporting frame, a gap is formed between the supporting frame and the box body to form a buffer space, a plurality of reinforcing pieces are arranged in the buffer space, and the reinforcing pieces are arranged in the buffer space. One end of the reinforcing piece is connected with the box body, and the other end of the reinforcing piece is connected with the supporting frame. According to the utility model, the buffer space is formed between the supporting frame and the box body, so that the buffer can be realized when the lower box body structure of the battery is collided or impacted, the rigidity is improved, and the deformation resistance is further improved; and a reinforcing piece is arranged in the buffer space, so that the strength of the whole battery lower box body structure is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a battery lower housing structure and a vehicle. Background Technology

[0002] The basic function of a battery pack enclosure is to house and protect the battery pack. Since the enclosure bears the weight of the battery pack and other modules, its strength and rigidity must meet usage requirements to ensure driving safety. Therefore, the rational design of the battery pack enclosure's structure and the selection of materials are crucial. Considering space-saving design and adapting to the varying operating environments of automobiles, a regular rectangular prism shape is preferred for the battery pack enclosure, but this can be adjusted appropriately based on layout requirements.

[0003] In the prior art, the battery pack box includes an upper box and a lower box. Both the upper box and the lower box are integrally formed box structures. If the rigidity of the lower box is insufficient, the battery pack box is easily damaged and deformed when it is subjected to a collision. Utility Model Content

[0004] The present invention aims to at least solve the technical problem in the prior art where the lower casing lacks rigidity, causing the battery pack casing to be easily damaged and deformed when subjected to impact.

[0005] Therefore, one objective of this utility model is to provide a battery lower housing structure, which includes a housing and a support frame. The housing is disposed on the support frame, and a gap is formed between the support frame and the housing to form a buffer space. A plurality of reinforcing members are provided in the buffer space. One end of the reinforcing member is connected to the housing, and the other end of the reinforcing member is connected to the support frame.

[0006] In some embodiments, the reinforcing members are arranged in a staggered pattern to divide the buffer space into multiple sub-buffer spaces.

[0007] In some embodiments, the bottom of the housing is connected to the support frame by a first fastener, and the bottom of the housing has a first mounting hole for installing the first fastener, which is located at the intersection of the transverse reinforcement and the longitudinal reinforcement.

[0008] In some embodiments, the height of the reinforcing member is 5-10 mm.

[0009] In some embodiments, the sidewall of the housing is provided with outwardly extending mounting lugs, and the support frame includes an extension plate extending outwardly from its sidewall, with the mounting lugs corresponding vertically to the extension plate.

[0010] In some embodiments, the extension plate is provided with a mounting groove for mounting the mounting lug, the mounting lug being interference-fitted with the mounting groove and fixed by a second fastener.

[0011] In some embodiments, the side wall of the enclosure is provided with a high-voltage plug-in mounting plate and a low-voltage plug-in mounting plate.

[0012] In some embodiments, the bottom inner wall of the housing is provided with a plurality of battery positioning elements.

[0013] In some embodiments, the support frame is a metal frame, and the housing is a composite material housing.

[0014] In some embodiments, the metal frame is a sheet metal stamping part, and the composite material box is an injection molded part.

[0015] Another objective of this invention is to provide a vehicle that includes the aforementioned battery lower housing structure.

[0016] The battery lower housing structure and vehicle provided in this embodiment of the utility model have the following beneficial effects:

[0017] The battery lower housing structure includes a housing and a supporting frame. The housing is mounted on the supporting frame, and a gap exists between the supporting frame and the housing to form a buffer space. Multiple reinforcing members are installed within this buffer space, with one end of each member connected to the housing and the other end connected to the supporting frame. This buffer space between the supporting frame and the housing provides cushioning when the battery lower housing structure is subjected to collisions or impacts, increasing rigidity and thus improving deformation resistance. The reinforcing members within the buffer space further enhance the overall strength of the battery lower housing structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the lower battery housing structure in an embodiment of this utility model;

[0020] Figure 2 This is a top view of the lower battery housing structure in an embodiment of this utility model;

[0021] Figure 3 This is a cross-sectional view along the AA direction in an embodiment of this utility model;

[0022] Figure 4 This is a cross-sectional view in the BB direction of an embodiment of this utility model;

[0023] Figure 5 This is a cross-sectional view of the lower battery housing structure in an embodiment of this utility model;

[0024] Figure label:

[0025] 1. Housing; 2. Support frame; 3. Buffer space; 4. Reinforcing member; 41. Lateral reinforcing member; 5. Fastener; 6. Mounting lug; 7. Extension plate; 71. Recess; 72. Mounting groove; 8. High voltage plug mounting plate; 9. Low voltage plug mounting plate; 10. Receiving cavity; 11. Battery positioning component. Detailed Implementation

[0026] Various embodiments and features of this utility model are described herein with reference to the accompanying drawings.

[0027] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this invention will be apparent to those skilled in the art.

[0028] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, serve to explain the principles of the present invention.

[0029] These and other features of the present invention will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0030] It should also be understood that although the present invention has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of the present invention, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0031] The above and other aspects, features and advantages of the present invention will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0032] Specific embodiments of the present invention will now be described with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of the present invention, which may be implemented in various ways. Well-known and / or repeated functions and structures have not been described in detail to avoid unnecessary or redundant details that could obscure the present invention. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely to serve as the basis and representative basis for the claims to teach those skilled in the art to use the present invention in a variety of substantially any suitable detailed structures.

[0033] The first embodiment of this utility model provides a battery lower housing structure, such as... Figure 1-5 As shown, the battery lower housing structure includes a housing 1 and a support frame 2. The housing 1 is mounted on the support frame 2. There is a gap between the support frame 2 and the housing 1 to form a buffer space 3. Multiple reinforcing members 4 are provided in the buffer space 3. One end of the reinforcing member 4 is connected to the housing 1, and the other end of the reinforcing member 4 is connected to the support frame 2.

[0034] Specifically, such as Figures 1-3 As shown, the housing 1 is mounted on the support frame 2, but the two are not tightly fitted together; instead, there is a gap between the housing 1 and the support frame 2, forming a buffer space 3. This buffer space 3 acts as a buffer when the bottom of the housing 1 and the support frame 2 collide, or when they are about to collide, thereby improving the impact resistance and rigidity of the battery lower housing structure. Furthermore, a reinforcing member 4 is provided within the buffer space 3. One end of the reinforcing member 4 is connected to the housing 1, and the other end of the reinforcing member 4 is connected to the support frame 2, preventing strength loss caused by the buffer space 3 and improving the overall strength of the lower housing 1 structure.

[0035] The reinforcing members 4 are arranged in a staggered pattern, dividing the buffer space 3 into multiple sub-buffer spaces. Specifically, the reinforcing members 4 include lateral reinforcing members 41 and longitudinal reinforcing members arranged in a staggered pattern. Compared with only lateral reinforcing members 41 or only longitudinal reinforcing members, the staggered arrangement of lateral and longitudinal reinforcing members 41 in this invention is beneficial to improving the strength of the battery lower housing structure. The reinforcing members 4 divide the buffer space 3 into multiple sub-buffer spaces, which helps to disperse the impact energy into multiple sub-buffer spaces during a collision, ensuring a buffering effect.

[0036] The reinforcing member 4 can be configured as a plate structure with a rectangular cross-section, having a large contact area with the box 1 and the support frame 2 respectively, to ensure the support performance of the box 1 and the support frame 2.

[0037] For example, the transverse reinforcements 41 are spaced apart along the length of the housing 1, and the longitudinal reinforcements are spaced apart along the width of the housing 1.

[0038] The height of the reinforcing member 4 is 5-10mm. The height of the reinforcing member 4 is consistent with the gap height between the housing 1 and the support frame 2. Both ends of the reinforcing member 4 are connected to the housing 1 and the support frame 2 respectively, providing support to both and thus improving the overall strength of the lower housing 1 structure. For example, the height of the reinforcing member 4 is 5mm, 6mm, 7mm, 8mm, 9mm, or 10mm.

[0039] like Figure 5 As shown, the bottom of the housing 1 is connected to the support frame 2 via a first fastener 5. A first mounting hole for installing the first fastener 5 is provided on the bottom of the housing 1, and a second mounting hole that mates with the first mounting hole is provided on the support frame 2. The first mounting hole is located at the intersection of the transverse reinforcement 41 and the longitudinal reinforcement. Specifically, the first fastener 5 passes through the second mounting hole and the first mounting hole in sequence to fix the housing 1 and the support frame 2, ensuring the connection stability between the housing 1 and the support frame 2. Since the intersection of the transverse reinforcement 41 and the longitudinal reinforcement has high strength, placing the first mounting hole at this intersection helps to reduce the adverse effects of strength loss caused by the opening on the battery lower housing structure.

[0040] For example, the first fastener 5 is a fastening bolt, one end of which passes through the second mounting hole and the first mounting hole in sequence to fix the support frame 2 and the housing 1.

[0041] like Figure 1 , Figure 2 and Figure 4 As shown, the side wall of the housing 1 is provided with outwardly extending mounting lugs 6. These mounting lugs 6 can be integrally formed with the housing 1 or separately connected to it. The mounting lugs 6 provide an installation position for the transport equipment during transportation, ensuring safety during transport. The support frame 2 includes an extension plate 7 extending outward from its side wall. This extension plate 7 can be integrally formed with the support frame 2 or separately connected to it. The mounting lugs 6 and the extension plate 7 correspond vertically, and the extension plate 7 provides support for the mounting lugs 6, ensuring the strength of the support between the extension plate 7 and the mounting lugs 6.

[0042] The extension plate 7 has spaced recesses 71, into which mounting lugs 6 are installed. The extension plate 7 has mounting grooves 72 for installing the mounting lugs 6. The mounting lugs 6 and mounting grooves 72 are interference-fitted and secured by a second fastener. The interference fit between the mounting lugs 6 and mounting grooves 72 is simple, provides good centering, high load-bearing capacity, and excellent impact resistance. The second fastener secures the mounting lugs and extension plate 7, ensuring reliable connection between them.

[0043] like Figure 1As shown, the enclosure 1 and the supporting frame 2 are arranged vertically, with the supporting frame 2 extending upwards from its bottom to surround the enclosure 1, protecting it from damage caused by impacts. Simultaneously, the upward extension of the supporting frame 2 does not reach the top of the enclosure 1, but rather exposes the sides of the enclosure 1, facilitating the installation of other components on the side walls and allowing for a more rational arrangement of the internal and external space of the enclosure 1. For example, the side walls of the enclosure 1 are equipped with a high-voltage plug-in mounting plate 8 and a low-voltage plug-in mounting plate 9, both exposed on the outside of the enclosure 1, allowing electrical equipment to be selectively connected to either high-voltage or low-voltage plug-ins.

[0044] like Figure 1 and Figure 2 As shown, the housing 1 has an internal cavity 10 in which the battery pack is installed. Multiple battery positioning elements 11 are provided on the bottom inner wall of the housing 1. These positioning elements 11 allow for quick installation of the battery pack within the housing 1. After the battery pack is installed in the housing 1, the positioning elements 11 limit its movement, preventing it from shifting and impacting its lifespan.

[0045] For example, the battery positioning components 11 are divided into two groups, which are respectively disposed on both sides of the bottom of the housing 1. Each group of battery positioning components 11 includes 4 components, which can achieve positioning at multiple positions of the battery pack to ensure positioning effect.

[0046] Currently, most existing lightweight solutions employ aluminum alloy profiles for the lower housing 1, but these are expensive. While steel sheet metal stamping parts are cheaper, their lightweight effect is poor. This solution aims to find a better balance between lightweighting and cost. The support frame 2 is a metal frame, and the housing 1 is a composite material housing 1. By using both a metal frame and a composite material housing 1 to form the battery lower housing structure, lightweighting of the battery lower housing structure is achieved. Furthermore, it reduces costs compared to using metal materials alone. For example, the support frame 2 is an aluminum alloy frame, and the housing 1 is a carbon fiber housing 1.

[0047] For example, the metal frame is a sheet metal stamping part, and the composite material box 1 is an injection molded part. The sheet metal stamping part of the metal frame has the advantages of low cost, high production efficiency, and stable quality. The injection molded part of the composite material box 1 has the advantages of high production efficiency, high product precision, wide material applicability, high design flexibility, and environmental friendliness.

[0048] The second embodiment of this utility model provides a vehicle including the above-described battery lower housing structure.

[0049] The battery lower housing structure of this vehicle includes a housing 1 and a supporting frame 2. The housing 1 is mounted on the supporting frame 2, and a gap exists between the supporting frame 2 and the housing 1 to form a buffer space 3. Multiple reinforcing members 4 are installed within the buffer space 3. One end of each reinforcing member 4 is connected to the housing 1, and the other end is connected to the supporting frame 2. The buffer space 3 formed between the supporting frame 2 and the housing 1 provides cushioning when the battery lower housing structure is subjected to collisions or impacts, improving rigidity and thus enhancing its resistance to deformation. The reinforcing members 4 within the buffer space 3 further enhance the overall strength of the battery lower housing structure.

[0050] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0051] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0052] In the description of this utility model, "multiple" means two or more.

[0053] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0054] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0055] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery lower housing structure, characterized in that, The device includes a housing and a support frame. The housing is mounted on the support frame, and a gap is formed between the support frame and the housing to form a buffer space. Multiple reinforcing members are provided in the buffer space. One end of each reinforcing member is connected to the housing, and the other end of each reinforcing member is connected to the support frame.

2. The battery lower housing structure according to claim 1, characterized in that, The reinforcing members are arranged in a staggered pattern to divide the buffer space into multiple sub-buffer spaces.

3. The battery lower housing structure according to claim 2, characterized in that, The bottom of the housing is connected to the support frame by a first fastener. The bottom of the housing has a first mounting hole for installing the first fastener, and the first mounting hole is located at the intersection of the transverse reinforcement and the longitudinal reinforcement.

4. The battery lower housing structure according to claim 1, characterized in that, The height of the reinforcing member is 5-10mm.

5. The battery lower housing structure according to claim 1, characterized in that, The side wall of the housing is provided with outwardly extending mounting lugs, and the support frame includes an extension plate extending outward from its side wall. The mounting lugs correspond vertically to the extension plate and are fixed by a second fastener.

6. The battery lower housing structure according to claim 5, characterized in that, The extension plate is provided with a mounting groove for mounting the mounting lug, and the mounting lug is interference-fitted with the mounting groove.

7. The battery lower housing structure according to claim 1, characterized in that, The side wall of the enclosure is provided with a high-voltage plug-in mounting plate and a low-voltage plug-in mounting plate.

8. The battery lower housing structure according to claim 1, characterized in that, The bottom inner wall of the box is equipped with multiple battery positioning components.

9. The battery lower housing structure according to claim 1, characterized in that, The supporting frame is a metal frame, and the box body is a composite material box body.

10. A vehicle, characterized in that, The battery lower housing structure includes any one of claims 1-9.

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