Bottom battery frame and vehicle

Abstract

The utility model provides a bottom battery frame and a vehicle, and relates to the technical field of battery installation. The battery frame comprises a battery frame, a connecting assembly and a fixing assembly, the battery frame comprises two frame bodies, the two frame bodies are erected on the two opposite sides of the frame, a mounting cavity is defined between the two frame bodies, at least part of the mounting cavity is located below the frame, the two frame bodies are connected through a fixing assembly, and the fixing assembly is used for being connected with the battery assembly so that part of the battery assembly can be mounted in the mounting cavity; the connecting assembly is arranged at the end, facing the frame, of the frame body and used for being connected with the frame. The battery frames are symmetrically arranged on the two sides of the frame, the frame is evenly stressed, most space above the frame behind the cab is not occupied, the space utilization rate of the vehicle is increased, the gravity center of the mounting cavity defined by the two frame bodies is close to or located on the same plane with the gravity center of the frame, the overall gravity center can be lowered, and safety is improved.

Description

Technical Field

[0001] This application relates to the field of battery installation technology, and more particularly to a bottom-mounted battery frame and vehicle. Background Technology

[0002] New energy vehicles are electric vehicles, including pure electric, hybrid, and other types. The batteries in new energy vehicles are mounted on the vehicle's frame, providing the power source to propel the vehicle.

[0003] In the prior art, a battery frame is installed on the chassis behind the driver's cab of the vehicle, the battery is bolted to the battery frame, and the battery is stacked vertically inside the battery frame.

[0004] However, vertically placing the battery takes up a lot of space behind the cab and raises the overall center of gravity, which can easily lead to safety issues. Utility Model Content

[0005] This application provides a bottom-mounted battery frame and vehicle to solve the problem that vertically placed batteries occupy a large amount of space behind the driver's cab and raise the overall center of gravity, which can easily lead to safety issues.

[0006] To achieve the above objectives, the technical solution of this application is as follows:

[0007] On one hand, this application provides a bottom-mounted battery frame, including: a battery frame, a connecting component, and a fixing component; the battery frame includes two frames, which are respectively mounted on opposite sides of a vehicle frame, and a mounting cavity is formed between the two frames, at least part of which is located below the vehicle frame; the two frames are connected by a fixing component, which is used to connect with a battery assembly so that part of the battery assembly is installed in the mounting cavity; the connecting component is disposed at the end of the frame facing the vehicle frame and is used to connect with the vehicle frame.

[0008] In one possible implementation, the bottom battery frame in this application embodiment further includes at least two limiting plates, each limiting plate being spaced apart on the side of the fixing component away from the battery component.

[0009] In one possible implementation, in the bottom battery frame of this application embodiment, the distance between the limiting plate and the fixing component is smaller than the distance between the frame and the fixing component.

[0010] In one possible implementation, the bottom-mounted battery frame in this application embodiment includes two reinforcing plates, side baffles and a bottom baffle. The two reinforcing plates are arranged opposite to each other and connected by the side baffles. Both the reinforcing plates and the side baffles are connected to the bottom baffle. The reinforcing plates, side baffles and bottom baffles form an installation cavity. The end of the reinforcing plate facing away from the side baffles is connected to a connecting assembly.

[0011] In one possible implementation, the bottom-mounted battery frame in this embodiment includes at least two first rods and at least two second rods. One end of one first rod is connected to a reinforcing plate, and one end of the other first rod is connected to another reinforcing plate. The other ends of both first rods are connected to the side baffle. The two ends of the second rods are respectively connected to the two first rods. Each second rod is spaced apart along the extension direction of the first rod, and the length of the two second rods increases sequentially in the direction away from the side baffle.

[0012] In one possible implementation, the bottom battery frame in this embodiment of the application has a positioning element on the frame, which is used to connect with the positioning pin of the battery assembly.

[0013] In one possible implementation, the bottom battery frame in this embodiment of the application has a buffer component on the side of the battery frame facing the battery assembly, and the buffer component is used to abut against the battery assembly.

[0014] In one possible implementation, the bottom battery frame in this application embodiment further includes a limiting guide, which is used to be mounted on the vehicle frame and connected to the battery frame. The width of the limiting guide increases sequentially from the direction toward the fixing component to the direction away from the fixing component.

[0015] In one possible implementation, the bottom-mounted battery frame in this application embodiment includes at least two connecting plates, each connecting plate being disposed on opposite sides of the limiting plate.

[0016] On the other hand, this application provides a vehicle including a vehicle body and a bottom-mounted battery frame as described in any of the above embodiments disposed on the vehicle body.

[0017] This application provides a bottom-mounted battery frame and vehicle, comprising: a battery frame, a connecting assembly, and a fixing assembly; the battery frame includes two frames mounted on opposite sides of a vehicle frame, forming a mounting cavity between the two frames, and the two frames are connected by a fixing assembly for connecting to a battery assembly so that a portion of the battery assembly is installed within the mounting cavity; the connecting assembly is located at the end of the frame facing the vehicle frame and is used to connect to the vehicle frame. By mounting the two frames on opposite sides of the vehicle frame, the battery frame is symmetrically positioned on both sides of the frame, resulting in even stress distribution on the frame and full utilization of the space on the sides, below, and under the frame, without occupying most of the space above the frame behind the cab, thus increasing the storage space behind the cab and improving the vehicle's space utilization rate. Furthermore, the center of gravity of the mounting cavity formed between the two frames is close to or on the same plane as the center of gravity of the vehicle frame, which helps to lower the overall center of gravity and increase safety. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] Figure 1 This is a structural schematic diagram of the bottom-mounted battery frame and vehicle frame provided in the embodiments of this application;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the bottom-mounted battery frame;

[0021] Figure 3 for Figure 1 A schematic diagram showing the connection between the bottom-mounted battery frame and the battery assembly.

[0022] Figure 4 for Figure 1 A schematic diagram of the structure of the battery module;

[0023] Figure 5 for Figure 1 A structural diagram of the mid-base battery frame and the vehicle frame from another perspective. Figure 1 ;

[0024] Figure 6 for Figure 1 A structural diagram of the mid-base battery frame and the vehicle frame from another perspective. Figure 2 .

[0025] Explanation of reference numerals in the attached figures:

[0026] 10-Frame; 20-Battery assembly; 21-Positioning pin;

[0027] 100-Battery Frame;

[0028] 110 - Mounting cavity;

[0029] 120 - Limit plate;

[0030] 130-Frame;

[0031] 131 - Reinforcing plate;

[0032] 132-Side guard;

[0033] 133-Bottom stop; 1331-First rod; 1332-Second rod;

[0034] 140 - Positioning component;

[0035] 200 - Connection Components;

[0036] 210 - Connecting plate;

[0037] 300 - Fixed component;

[0038] 400 - Limiting guide component;

[0039] 500-Buffer Component.

[0040] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0041] 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.

[0042] It should be noted that in the description of the embodiments of this application, the terms "upper", "lower", "inner", "outer" and other terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description, and are not intended to indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application.

[0043] Furthermore, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] New energy vehicles are electric vehicles, including pure electric, hybrid, and other types. The batteries in new energy vehicles are mounted on the vehicle's frame, providing the power source to propel the vehicle.

[0046] In existing technology, a battery frame is installed on the chassis behind the vehicle's cab, with the battery bolted to the frame, and the batteries are stacked vertically within the frame. However, vertical placement of the batteries occupies a large amount of space behind the cab and raises the overall center of gravity. This can easily lead to loosening between the battery and the battery frame, and between the battery frame and the chassis, potentially causing safety issues.

[0047] In view of this, this application provides a bottom-mounted battery frame, including: a battery frame, a connecting component, and a fixing component; the battery frame includes two frames, which are mounted on opposite sides of the vehicle frame, forming a mounting cavity between the two frames, at least part of which is located below the vehicle frame; the two frames are connected by the fixing component, which is used to connect to the battery assembly so that part of the battery assembly is installed in the mounting cavity; the connecting component is located at the end of the frame facing the vehicle frame and is used to connect to the vehicle frame. By mounting the two frames on opposite sides of the vehicle frame, the battery frame is symmetrically arranged on both sides of the vehicle frame, resulting in even stress distribution on the vehicle frame and not occupying most of the space above the vehicle frame behind the cab, thus increasing the storage space behind the cab and improving the space utilization of the vehicle. Moreover, the center of gravity of the mounting cavity formed between the two frames is close to or on the same plane as the center of gravity of the vehicle frame, which helps to lower the overall center of gravity and increase safety.

[0048] The following is combined Figures 1 to 6 The present application will be described in detail with reference to specific embodiments. Figure 1 This is a structural schematic diagram of the bottom-mounted battery frame and vehicle frame provided in the embodiments of this application; Figure 2 for Figure 1 A schematic diagram of the structure of the bottom-mounted battery frame; Figure 3 for Figure 1 A schematic diagram showing the connection between the bottom-mounted battery frame and the battery assembly. Figure 4 for Figure 1 A schematic diagram of the structure of the battery module; Figure 5 for Figure 1 A structural diagram of the mid-base battery frame and the vehicle frame from another perspective. Figure 1 ; Figure 6 for Figure 1 A structural diagram of the mid-base battery frame and the vehicle frame from another perspective. Figure 2 .

[0049] On one hand, this application provides a bottom-mounted battery frame, including: a battery frame 100, a connecting component 200, and a fixing component 300; the battery frame 100 includes two frames 130, which are mounted on opposite sides of a vehicle frame 10, and a mounting cavity 110 is formed between the two frames 130, at least a portion of the mounting cavity 110 is located below the vehicle frame 10, the two frames 130 are connected by the fixing component 300, and the fixing component 300 is used to connect with a battery assembly 20 so that a portion of the battery assembly 20 is installed in the mounting cavity 110; the connecting component 200 is disposed at one end of the frame 130 facing the vehicle frame 10, and the connecting component 200 is used to connect with the vehicle frame 10.

[0050] Specifically, the battery frame 100 includes two frames 130, which are disposed on opposite sides of the vehicle frame 10. The two frames 130 are connected by a fixing component 300, and each connecting plate 210 is correspondingly disposed with a frame 130. The end face of the frame 130 facing the battery assembly 20 is lower than or equal to the end face of the vehicle frame 10 facing the battery assembly 20, while the end face of the fixing component 300 away from the battery assembly 20 is flush with or higher than the end face of the vehicle frame 10 facing the battery assembly 20. This application does not limit the structure of the frame 130.

[0051] A mounting cavity 110 is formed between two frame bodies 130. The two frame bodies 130 are connected by a fixing assembly 300. For example, the fixing assembly 300 includes two battery pack connecting plates. The connecting assembly 200 includes four connecting plates 210. The battery pack connecting plates are positioned above the battery frame 100, and two connecting plates 210 are positioned on opposite sides of the battery pack connecting plates. The battery pack connecting plates are detachably connected to the battery assembly 20. For example, the battery pack connecting plates and the battery assembly 20 are connected by bolts. The battery pack connecting plates are welded to the connecting plates 210.

[0052] A buffer assembly 500 is disposed between the battery assembly 20 and the battery frame 100. For example, the buffer assembly 500 is disposed above the fixing assembly 300, and bolts are sequentially passed through the buffer assembly 500, the holes in the battery assembly 20, and connected to the fixing assembly 300, or bolts are sequentially passed through the holes in the battery assembly 20, the buffer assembly 500, and connected to the fixing assembly 300. The buffer assembly 500 reduces the longitudinal impact of the battery assembly 20 on the battery frame. This application embodiment does not limit the structure of the battery assembly 20. For example, the battery assembly 20 can be an integrated battery module or a separate battery pack. When the battery assembly 20 is an integrated battery module, the battery module includes multiple battery packs and a connecting module. The multiple battery packs are spaced apart on the connecting module, and the connecting module is connected to the battery pack connecting plate. The connecting module is provided with positioning pins 21 and connecting holes, which are connected to the positioning holes on the fixing assembly 300. Bolts or screws pass through the connecting holes of the connecting module and are connected to the battery pack connecting plate. It is understood that multiple battery packs of different sizes and heights can be set on the connection module, and this application embodiment does not limit this.

[0053] It should be noted that there can be multiple battery frames 100, each battery frame 100 is arranged along the extension direction of the frame 10 to install multiple battery packs 20.

[0054] In some other embodiments, a limiting plate 120 is also provided on the battery frame 100. The limiting plate 120 is correspondingly provided with the battery pack connecting plate, and the extending direction of the limiting plate 120 is perpendicular to the extending direction of the connecting plate 210. A limiting guide block is provided on the frame 10, with two limiting guide blocks located on opposite sides of the frame 10 and connected to the battery frame 100. After assembly, the two limiting plates 120 are located on opposite sides of the limiting guide blocks.

[0055] In this embodiment, the bottom-mounted battery frame is mounted on opposite sides of the vehicle frame 10 via two frames 130, ensuring the battery frame 100 is symmetrically positioned on both sides of the vehicle frame 10. This results in even force distribution on the vehicle frame and avoids occupying most of the space above the vehicle frame behind the cab, increasing storage space behind the cab and improving vehicle space utilization. Furthermore, the center of gravity of the mounting cavity 110 formed between the two frames 130 is close to or on the same plane as the center of gravity of the vehicle frame 10, which helps to lower the overall center of gravity and increase safety. In addition, at least part of the mounting cavity 110 is located below the vehicle frame 10, allowing for the utilization of the space below the vehicle frame 10.

[0056] In one possible implementation, the bottom battery frame 100 in this embodiment of the application further includes at least two limiting plates 120, each limiting plate 120 being spaced apart on the side of the fixing component 300 away from the battery component 20.

[0057] For example, there are two limiting plates 120, which are spaced apart and positioned on the side of the fixing assembly 300 facing away from the battery assembly 20. Alternatively, there are four frame bodies 130, with two opposite frame bodies 130 forming a group. The two groups of frame bodies 130 are spaced apart along the extension direction of the frame 10, forming two adjacent mounting cavities 110. There are three limiting plates 120, which are spaced apart and positioned on the side of the two mounting cavities 110 facing the frame 10. Thus, the limiting plates 120 can limit the installation distance in the height direction to ensure the reliability of the assembly of the bottom-mounted battery frame with the frame 10.

[0058] In one possible implementation, in the bottom battery frame of this application embodiment, the distance between the limiting plate 120 and the fixing component 300 is less than the distance between the frame 130 and the fixing component 300.

[0059] The distance between the limiting plate 120 and the fixing component 300 is the height of the limiting plate 120 from the direction towards the fixing component 300 to the direction away from the fixing component 300. The distance between the frame 130 and the fixing component 300 is the height of the frame 130 from the direction towards the fixing component 300 to the direction away from the fixing component 300. The limiting plate 120 is used to position the mounting cavity 110 below both sides of the frame, thereby lowering the overall center of gravity and ensuring safety.

[0060] In one possible implementation, the bottom-mounted battery frame in this embodiment includes a frame 130 comprising two reinforcing plates 131, side baffles 132, and a bottom baffle 133. The two reinforcing plates 131 are arranged opposite to each other and connected by the side baffles 132. Both the reinforcing plates 131 and the side baffles 132 are connected to the bottom baffle 133. The reinforcing plates 131, the side baffles 132, and the bottom baffle 133 form an installation cavity 110. One end of the reinforcing plate 131 facing away from the side baffles 132 is connected to the connecting assembly 200.

[0061] Two reinforcing plates 131 are disposed opposite each other on the side away from the fixing assembly 300 and connected by a side stop 132. It should be noted that the reinforcing plate 131 is located on one side of the connecting plate 210 and is connected to the connecting plate 210. For example, the end of the reinforcing plate 131 away from the side stop 132 is connected to the connecting plate 210. In this embodiment, the two reinforcing plates 131, the side stop 132, and the bottom stop 133 enhance the support strength of the bottom-mounted battery frame, improve the load-bearing capacity of the battery assembly 20, and also provide some protection to the periphery of the battery assembly 20, reducing the risk of collisions.

[0062] In one possible implementation, the bottom-mounted battery frame in this embodiment includes a bottom stop 133 comprising at least two first rods 1331 and at least two second rods 1332. One end of one first rod 1331 is connected to a reinforcing plate 131, and one end of another first rod 1331 is connected to another reinforcing plate 131. The other ends of both first rods 1331 are connected to the side stop 132. The two ends of the second rods 1332 are respectively connected to the two first rods 1331. Each second rod 1332 is spaced apart along the extension direction of the first rod 1331, and the length of the two second rods 1332 increases sequentially in the direction away from the side stop 132.

[0063] Two second rods 1332 are spaced apart along the extending direction of the first rod 1331. For example, the two first rods 1331 and the two second rods 1332 are arranged to form an isosceles trapezoid. The shapes of the first rods 1331 and the second rods 1332 are not limited in this embodiment; for example, the first rod 1331 may be a square rod, while the second rod 1332 may be a cylindrical rod, or both the first rod 1331 and the second rod 1332 may be cylindrical rods.

[0064] It should be noted that the orientation of the first rod 1331 and the second rod 1332 in the two frames 130 can be the same or opposite, and this application embodiment does not limit this.

[0065] It should be noted that the bottom support 133 can also provide some auxiliary support for the battery assembly 20, enhancing the load-bearing capacity of the battery frame. It should also be noted that a buffer component 500 can be installed on the side of the bottom support 133 facing the battery assembly 20 to provide shock absorption.

[0066] In one possible implementation, the bottom battery frame in this embodiment of the application has a positioning member 140 on the frame 130, which is used to connect with the positioning pin 21 of the battery assembly 20.

[0067] For example, the positioning element 140 is a positioning hole. The battery frame 100 has a positioning hole on the side facing the battery assembly 20, and the positioning hole is located on the frame 130. Correspondingly, at least one side of the battery assembly 20 is provided with a positioning pin 21. The positioning pin 21 passes through the positioning hole, connecting the battery assembly 20 to the battery frame 100. The positioning hole and positioning pin 21 facilitate accurate positioning of the battery assembly 20 onto the frame 130. This provides installation positioning guidance for the battery assembly 20 and adds a connection point between the frame 130 and the battery assembly 20, providing connection strength.

[0068] In one possible implementation, the bottom battery frame in this embodiment of the application has a buffer component 500 on the side of the battery frame 100 facing the battery assembly 20, and the buffer component 500 is used to abut against the battery assembly 20.

[0069] A buffer assembly 500 is disposed between the battery assembly 20 and the battery frame 100. This application embodiment does not limit the specific structure of the buffer assembly 500; for example, the buffer assembly 500 may be a rubber pad or a silicone pad. The buffer assembly 500 can absorb vibrations and impacts generated during vehicle operation, thereby protecting the battery assembly 20 and ensuring the stability of the battery frame 100.

[0070] In one possible implementation, the bottom battery frame in this application embodiment further includes a limiting guide 400, which is used to be mounted on the frame 10 and connected to the battery frame 100. The width of the limiting guide 400 increases sequentially from the direction toward the fixing component 300 to the direction away from the fixing component 300.

[0071] For example, the limiting guide 400 is a limiting guide block. This application embodiment does not limit the number of limiting guides 400. Exemplarily, there are four limiting guides 400, each arranged in pairs opposite to the frame 10. The battery frame 100 is located between two limiting guides 400 to restrict the movement of the battery frame 100. The width of the limiting guides 400 towards the battery frame 100 increases sequentially towards the direction away from the battery frame 100. The limiting guides 400 provide support for the battery frame 100, ensuring it is placed in the target position during installation. Furthermore, by placing the battery frame 100 between the two limiting guides 400, the movement of the battery frame 100 during vehicle operation can be effectively restricted.

[0072] In one possible implementation, the bottom battery frame in this embodiment includes a connecting component 200 comprising at least two connecting plates 210, each connecting plate 210 being disposed on opposite sides of the limiting plate 120.

[0073] Specifically, the connecting plate 210 is located in the middle of the battery frame 100. The connecting plate 210 is used to connect with the frame 10. The connecting plate 210 is facing the frame 10. Both the connecting plate 210 and the frame 10 are provided with connecting holes. Bolts pass through the connecting holes in sequence to connect the connecting plate 210 to the frame 10.

[0074] There are two connecting plates 210, which are arranged opposite each other in the middle of the battery frame 100, with the vehicle frame 10 located between the two connecting plates 210. For example, there are six connecting plates 210, with two opposite connecting plates 210 forming a group of connecting plates 210. Each group of connecting plates 210 is spaced apart along the extension direction of the vehicle frame 10 to enhance the connection strength between the vehicle frame 10 and the battery frame 100. The distance between two adjacent groups of connecting plates 210 can be the same or different, and this embodiment does not limit this.

[0075] On the other hand, this application provides a vehicle including a vehicle body and a bottom-mounted battery frame as described in any of the above embodiments disposed on the vehicle body.

[0076] It should be noted that the vehicles involved in this application are not limited to a specific type of vehicle. For example, the vehicles involved in this application may include large vehicles, small vehicles, special-purpose vehicles, or sedans, SUVs, multi-purpose vehicles, or electric heavy trucks, electric light trucks, etc.

[0077] The battery assembly 20 is mounted on a bottom-mounted battery frame, which is installed on both sides of the vehicle frame. The bottom-mounted battery frame is located at the bottom rear of the cab, without occupying storage space behind the cab. It is understood that the bottom-mounted battery frame can be positioned above or below the vehicle frame; this embodiment does not impose any limitation on this.

[0078] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0079] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A bottom-mounted battery frame, characterized in that, include: Battery frame (100), connecting assembly (200), and fixing assembly (300); The battery frame (100) includes two frames (130), which are respectively mounted on opposite sides of the vehicle frame (10). The two frames (130) form a mounting cavity (110) between them. At least part of the mounting cavity (110) is located below the vehicle frame (10). The two frames (130) are connected by a fixing component (300), which is used to connect to the battery assembly (20) so that part of the battery assembly (20) is installed in the mounting cavity (110). The connecting component (200) is disposed at one end of the frame (130) facing the vehicle frame (10), and the connecting component (200) is used to connect to the vehicle frame (10).

2. The bottom-mounted battery frame according to claim 1, characterized in that, The battery frame (100) also includes at least two limiting plates (120), each of the limiting plates (120) being spaced apart on the side of the fixing component (300) away from the battery assembly (20).

3. The bottom-mounted battery frame according to claim 2, characterized in that, The distance between the limiting plate (120) and the fixing component (300) is less than the distance between the frame (130) and the fixing component (300).

4. The bottom-mounted battery frame according to any one of claims 1-3, characterized in that, The frame (130) includes two reinforcing plates (131), side stops (132), and bottom stops (133). The two reinforcing plates (131) are arranged opposite to each other and connected by the side stops (132). Both the reinforcing plates (131) and the side stops (132) are connected to the bottom stops (133). The reinforcing plates (131), the side stops (132), and the bottom stops (133) form the mounting cavity (110). The end of the reinforcing plate (131) facing away from the side stops (132) is connected to the connecting assembly (200).

5. The bottom-mounted battery frame according to claim 4, characterized in that, The bottom stop (133) includes at least two first rods (1331) and at least two second rods (1332). One end of one first rod (1331) is connected to one of the reinforcing plates (131), and one end of the other first rod (1331) is connected to another reinforcing plate (131). The other ends of both first rods (1331) are connected to the side stop (132). Both ends of the second rods (1332) are connected to the two first rods (1331) respectively. Each second rod (1332) is spaced apart along the extension direction of the first rod (1331), and the length of the two second rods (1332) increases sequentially in the direction away from the side stop (132).

6. The bottom-mounted battery frame according to any one of claims 1-3, characterized in that, The frame (130) is provided with a positioning element (140), which is used to connect with the positioning pin (21) of the battery assembly (20).

7. The bottom-mounted battery frame according to any one of claims 1-3, characterized in that, A buffer component (500) is provided on the side of the battery frame (100) facing the battery assembly (20), and the buffer component (500) is used to abut against the battery assembly (20).

8. The bottom-mounted battery frame according to any one of claims 1-3, characterized in that, It also includes a limiting guide (400) for mounting on the frame (10) and for connecting to the battery frame (100). The width of the limiting guide (400) increases sequentially from the direction toward the fixing component (300) to the direction away from the fixing component (300).

9. The bottom-mounted battery frame according to claim 2 or 3, characterized in that, The connecting assembly (200) includes at least two connecting plates (210), each of the connecting plates (210) being disposed on opposite sides of the limiting plate (120).

10. A vehicle, characterized in that, Includes a vehicle body and a bottom-mounted battery frame as described in any one of claims 1-9 disposed on the vehicle body.

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