Battery mounting frame and vehicle

Abstract

The utility model relates to the technical field of battery packs, in particular to a battery mounting frame and a vehicle. The battery frame is used for fixing a power battery system of a vehicle, and the power battery bracket comprises a plurality of bracket modules which are stacked in the direction perpendicular to the bottom surface of the vehicle; each support module comprises a first frame, a stand column assembly and a first support capable of bearing an electric box unit, the first support is used for being detachably and fixedly connected with the electric box unit, the first support is fixedly connected with the first frame, the stand column assembly comprises a plurality of supporting columns, and the supporting columns are distributed along the periphery of the first frame and fixedly connected with the first frame; the stand column assembly is used for being detachably and fixedly connected with the first frame of the adjacent lower-layer support module. The battery frame is small in size in the height direction, low in gravity center and high in structural stability.

Description

Technical Field

[0001] This application relates to the field of battery pack technology, and more specifically, to a battery mounting frame and vehicle. Background Technology

[0002] In new energy vehicles such as hybrid electric vehicles and pure electric vehicles, the power battery is an important component, which is mounted on the vehicle frame through a battery frame.

[0003] Most existing battery frames consist of a main frame and multiple horizontally stacked battery trays. The structure of this battery frame determines its battery assembly method. When assembling batteries, existing battery frames typically use specialized equipment to insert them from one side of the battery tray. Considering battery assembly, this type of battery frame needs to reserve a certain amount of space in the vertical direction for the installation of specialized equipment such as cable management systems. Therefore, the vertical dimensions of existing battery frames are relatively large, resulting in a high center of gravity. Furthermore, the structural strength of existing battery frames is not high enough, which affects the battery performance of the vehicle. Utility Model Content

[0004] In view of this, this application provides a battery mounting frame and vehicle, which aims to improve the problems of high center of gravity and low structural strength of existing battery mounting frames.

[0005] In a first aspect, this application provides a battery mounting frame for fixing a vehicle's power battery system, the power battery system including multiple battery box units, and the battery mounting frame including a power battery bracket.

[0006] The power battery bracket includes multiple bracket modules stacked along a direction perpendicular to the bottom surface of the vehicle;

[0007] Each of the bracket modules includes a first frame, a column assembly, and a first support capable of supporting the electrical box unit. The first support is detachably and fixedly connected to the electrical box unit and is fixedly connected to the first frame. The column assembly includes a plurality of support columns, which are distributed along the periphery of the first frame and fixedly connected to the first frame.

[0008] The column assembly is used for a detachable and fixed connection with the first frame of the adjacent lower-level support module.

[0009] Preferably, the battery mounting frame further includes a bracket base assembly, which includes a second frame and a second support capable of supporting the battery box unit. The second support is fixedly connected to the second frame and detachably fixedly connected to the battery box unit. The bottom of the second frame is connected to the vehicle frame.

[0010] The column assembly of the lowest layer support module is detachably and fixedly connected to the second frame.

[0011] Preferably, both the second support and the first support include two support plates. The extension direction of the support plates is parallel to the length direction of the electrical box unit. The two support plates are arranged opposite each other along the width direction of the electrical box unit, and the surface of the support plates is connected to the bottom surface of the electrical box unit by detachable fasteners.

[0012] Preferably, the plurality of support columns include four corner columns and at least one intermediate column;

[0013] Both the first frame and the second frame are rectangular frame structures;

[0014] In the support modules except the bottom layer, the four corner posts are located at the four corners of the first frame of the adjacent layer of the support module, and the middle post is located at the middle of the long side of the first frame of the adjacent layer of the support module.

[0015] In the lowest layer of the support module, the four corner posts are located at the four corners of the second frame, and the middle post is located at the middle of the long side of the second frame.

[0016] Preferably, each of the bracket modules further includes a plurality of reinforcing beams, which are arranged along the long side of the second frame, and the two ends of each reinforcing beam are fixedly connected to the two long sides of the second frame, respectively.

[0017] Preferably, in each of the support modules, a reinforcing rib plate extending along the length direction of the support plate is fixedly connected to the bottom end of the support plate, and the reinforcing rib plate is fixedly connected to the plurality of reinforcing beams;

[0018] The surface of the reinforcing rib is perpendicular to the horizontal plane, and a triangular rib is fixedly connected between the bearing plate and the reinforcing rib.

[0019] Preferably, at least two intermediate longitudinal beams are fixedly connected between the long sides of the second frame;

[0020] The battery mounting frame also includes two assembly units, each of which includes a connecting plate and a sub-beam. The top end of each sub-beam is fixedly connected to one of the intermediate longitudinal beams, the bottom end of the sub-beam abuts against the top surface of a vehicle frame, and the outer side of the sub-beam is fixedly connected to the outer side of the corresponding vehicle frame via the connecting plate.

[0021] Preferably, both the first frame and the second frame are frame structures formed by connecting profile components.

[0022] Preferably, both the first frame and the second frame are provided with wiring holes for passing wires of the electrical box unit through.

[0023] Secondly, this application provides a vehicle including the battery mounting frame provided in the first aspect of this application.

[0024] Compared with the prior art, the battery mounting frame and vehicle provided in this application achieve at least the following beneficial effects:

[0025] The battery mounting frame provided in this application, and the battery mounting frame provided in this embodiment, includes a power battery bracket. The power battery bracket includes multiple bracket modules stacked along a direction perpendicular to the bottom surface of the vehicle. Each bracket module includes a first frame, a column assembly, and a first support. The first support is fixedly connected to the first frame and detachably fixedly connected to the battery box unit. The first support of each layer of bracket unit is used to support and fix the battery box unit. Except for the bottom layer, the column assembly of the bracket module can be detachably fixedly connected to the first frame of the adjacent lower layer bracket module. Thus, this battery mounting frame can be used to install the bracket modules and battery box units layer by layer from bottom to top by hoisting. That is, first assemble the bottom layer bracket module, place the battery box unit, and then assemble the bracket module and battery box unit of the next layer, so as to install multiple battery box units on the power battery bracket. The structure of this battery mounting frame can be used to install multiple battery box units in the battery mounting frame by hoisting. When installing the battery box unit into the battery mounting frame, the battery mounting frame does not need to reserve a large space for special equipment in the height direction. Therefore, the battery mounting frame is shorter and has a lower center of gravity.

[0026] Furthermore, in the battery mounting frame provided in this application, in each bracket module, the first frame can provide reliable support for the first support, the first support is detachably and fixedly connected to the battery box unit, the first support can provide support for the battery box unit, and the battery box unit is fixedly connected to the first frame through the first support. Each bracket module installs and fixes a corresponding battery box unit, and the connection structure between the bracket module and the battery box unit is stable. In addition, the column assembly includes multiple support columns, which are distributed along the periphery of the first frame and fixedly connected to the first frame, so that the battery box unit is surrounded and limited by the multiple support columns of the upper bracket module. In this way, even if the connection between the first support and the battery box unit fails, the battery box unit can still be guaranteed to be within the bracket module, which is beneficial to improving the installation and fixing effect of the battery mounting frame on the battery box unit and improving the safety of the vehicle's power battery system.

[0027] Of course, any product implementing this application need not specifically need to achieve all of the technical effects described above at the same time.

[0028] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0030] Figure 1 The diagram shown is a reference image of the battery mounting frame provided in an embodiment of this application, illustrating its usage status.

[0031] Figure 2 The diagram shown is a structural schematic of the battery mounting frame provided in an embodiment of this application;

[0032] Figure 3 The diagram shown is a structural schematic of the power battery bracket provided in an embodiment of this application;

[0033] Figure 4 The diagram shown is a structural schematic of the bracket base assembly provided in an embodiment of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10-Battery mounting frame, 20-Electric box unit, 30-Frame, 100-Power battery bracket, 101-Assembly plate, 102-Bearing plate, 110-Bracket module, 111-First frame, 112-Column assembly, 1121-Corner column, 1122-Intermediate column, 113-First support, 120-Reinforcing beam, 130-Reinforcing rib plate, 140-Triangular rib, 200-Bracket base assembly, 210-Second frame, 220-Second support, 230-Intermediate longitudinal beam, 300-Assembly unit, 310-Connecting plate, 320-Sub-beam, 330-Diagonal brace rib plate. Detailed Implementation

[0036] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0037] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0038] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0039] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0040] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the implementation methods provided in the embodiments of this application can be combined with each other without contradiction.

[0041] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0042] Figure 1 The diagram shown is a reference image of the battery mounting frame provided in an embodiment of this application, illustrating its usage status. Figure 2 The diagram shown is a structural schematic of the battery mounting frame provided in an embodiment of this application. Figure 3 The diagram shown is a structural schematic of the power battery bracket provided in an embodiment of this application.

[0043] Please refer to Figures 1 to 3 This application provides a battery mounting frame 10 for fixing a vehicle's power battery system. The power battery system includes multiple battery box units 20, and the battery mounting frame 10 includes a power battery bracket 100.

[0044] The power battery bracket 100 includes multiple bracket modules 110 stacked along a direction perpendicular to the bottom surface of the vehicle;

[0045] Each support module 110 includes a first frame 111, a column assembly 112, and a first support 113 capable of supporting the electrical box unit 20. The first support 113 is detachably and fixedly connected to the electrical box unit 20. The first support 113 is fixedly connected to the first frame 111. The column assembly 112 includes a plurality of support columns, which are distributed along the periphery of the first frame 111 and fixedly connected to the first frame 111.

[0046] The column assembly 112 is used for a detachable and fixed connection with the first frame 111 of the adjacent lower support module 110.

[0047] The battery mounting frame 10 provided in this embodiment includes a power battery bracket 100. The power battery bracket 100 includes multiple bracket modules 110 stacked along a direction perpendicular to the bottom surface of the vehicle. Each bracket module 110 includes a first frame 111, a column assembly 112, and a first support 113. The first support 113 is fixedly connected to the first frame 111 and is detachably fixedly connected to the electrical box unit 20. The first support 113 of each layer of bracket unit is used to support and fix the electrical box unit 20. The column assembly 112 of the support module 110, except for the bottom layer, can be detachably and fixedly connected to the first frame 111 of the adjacent lower support module 110. In this way, the battery mounting frame 10 can be used to install the support module 110 and the battery box unit 20 from bottom to top layer by layer by hoisting. That is, first assemble the bottom support module 110, place the battery box unit 20, and then assemble the support module 110 and the battery box unit 20 of the next layer, so as to realize the installation of multiple battery box units 20 on the power battery bracket 100.

[0048] When installing the battery box unit 20 on the battery mounting frame 10, taking the battery mounting frame 10 including the three-layer bracket module 110 as an example, see... Figure 1 and Figure 2 The specific operating steps are as follows:

[0049] The first step involves using hoisting equipment to hoist the first-layer support module 110 into place. The column assembly 112 of the first support module 110 is then (indirectly or directly) installed onto the vehicle frame 30. Next, an electrical box unit 20 is hoisted onto the first support 113 of the first-layer support module 110. After adjusting the electrical box unit 20, it is then assembled and connected to the first support 113 using detachable fasteners, thus achieving a fixed installation of the electrical box unit 20 and the first-layer support module 110. The second step involves using external hoisting equipment to hoist the second-layer support module 110 above the first-layer support module 110 and the electrical box unit 20 installed on the first-layer support module 110, thus securing the second-layer support module 110. The column assembly 112 is connected to the first frame 111 of the first layer bracket module 110 via a detachable fastener. Then, an electrical box unit 20 is hoisted onto the first support 113 of the second bracket module 110. After adjusting the electrical box unit 20, the electrical box unit 20 is assembled and connected to the first support 113 of the same layer via a detachable fastener, thus achieving the fixed installation of the electrical box unit 20 and the second layer bracket module 110. In the third step, the above operation is repeated to install the third layer bracket module 110 onto the second layer bracket module 110 in sequence, and then fix another electrical box unit 20 onto the third layer bracket module 110, thus achieving the fixed installation of the power battery bracket 100 on the three electrical box units 20.

[0050] As described above, the structure of the battery mounting frame 10 is suitable for installing multiple battery box units 20 in the battery mounting frame 10 by means of hoisting. When the battery box unit 20 is installed in the battery mounting frame 10, the battery mounting frame 10 does not need to reserve a large space for special equipment in the height direction. Therefore, the battery mounting frame 10 is smaller in height and has a lower center of gravity.

[0051] Furthermore, in the battery mounting frame 10 provided in this embodiment, in each bracket module 110, the first frame 111 can provide reliable support for the first support 113. The first support 113 is detachably and fixedly connected to the battery box unit 20. The first support 113 can provide support for the battery box unit 20, and the battery box unit 20 is fixedly connected to the first frame 111 through the first support 113. Each bracket module 110 installs and fixes a corresponding battery box unit 20, and the connection structure between the bracket module 110 and the battery box unit 20 is stable. In addition, the column assembly 112 includes multiple support columns, which are distributed along the periphery of the first frame 111 and fixedly connected to the first frame 111. This allows the battery box unit 20 to be surrounded and limited by the multiple support columns of the upper bracket module 110. In this way, even if the connection between the first support 113 and the battery box unit 20 fails, the battery box unit 20 can still be kept within the bracket module 110. This is beneficial to improving the installation and fixing effect of the battery mounting frame 10 on the battery box unit and improving the safety of the vehicle's power battery system.

[0052] Figure 4 The diagram shown is a structural schematic of the bracket base assembly provided in an embodiment of this application. See also... Figures 1 to 4 In some embodiments, the battery mounting frame 10 further includes a bracket base assembly 200, which includes a second frame 210 and a second support 220 capable of supporting the battery box unit 20. The second support 220 is fixedly connected to the second frame 210 and is used for detachable fixed connection with the battery box unit 20. The bottom of the second frame 210 is connected to the vehicle frame 30.

[0053] The column assembly 112 of the lowest support module 110 is detachably and fixedly connected to the second frame 210.

[0054] In specific implementation, the bottom ends of the multiple support columns of the column assembly 112 can also be fixedly provided with mounting plates 101; in the lowest layer bracket module 110, the mounting plate 101 abuts against the top surface of the second frame 210 and is fixedly connected by fasteners; in the bracket modules 110 other than the lowest layer, the mounting plate 101 abuts against the top surface of the first frame 111 and is fixedly connected by fasteners. In this way, the connection reliability between the column assembly 112 and the adjacent lower first frame 111 or second frame 210 is improved, thereby improving the structural stability of the battery mounting frame 10.

[0055] In this embodiment, the bracket base assembly 200 is used to install and fix the electrical box unit 20. Specifically, before the power battery bracket 100 is installed, the second frame 210 is installed on the vehicle frame 30. An electrical box unit 20 is hoisted onto the second support 220 using external hoisting equipment. After adjusting the electrical box unit 20, the electrical box unit 20 is assembled and connected to the second support 220 using detachable fasteners, thus achieving the fixed installation of the electrical box unit 20 and the bracket base assembly 200. Then, the first-layer bracket module 110 of the power battery bracket 100 is hoisted onto the second frame 210 and above the electrical box units 20 installed on the second frame 210 using hoisting equipment. The column assembly 112 of the first-layer bracket module 110 is installed on the second frame 210. Afterwards, multiple layers of bracket modules 110 and electrical box units 20 are hoisted from bottom to top above the first-layer bracket module 110, thus achieving the fixed installation of multiple electrical box units 20 by the power battery bracket 100. As described above, the bracket base assembly 200 not only allows the power battery bracket 100 to be installed on the vehicle frame 30, but also makes reasonable use of the space between the vehicle frame 30 and the bottom bracket module 110. The bracket base assembly 200 is suitable for fixing and installing the battery box unit 20 and the bottom bracket module 110 by means of hoisting. There is no need to reserve a large space for special equipment in the height direction between the bracket base assembly 200 and the bottom bracket module 110. Therefore, the battery mounting frame 10 is shorter and has a lower center of gravity.

[0056] See Figure 3 and Figure 4 In some embodiments, both the second support 220 and the first support 113 include two support plates 102. The extension direction of the support plates 102 is parallel to the length direction of the electrical box unit 20. The two support plates 102 are arranged opposite each other along the width direction of the electrical box unit 20, and the plate surface of the support plates 102 is connected to the bottom surface of the electrical box unit 20 by detachable fasteners.

[0057] In this embodiment, the extension direction of the support plate 102 is parallel to the length direction of the electrical box unit 20, conforming to the longitudinal center of gravity distribution of the electrical box unit 20, which is especially suitable for cuboid electrical box units 20; the support plate 102 and the bottom surface of the electrical box unit 20 are in surface contact, reducing the pressure per unit area, which can prevent the bottom surface of the electrical box unit 20 from sinking due to excessive local stress; the two support plates 102 are arranged opposite to each other along the width direction of the electrical box unit 20 to form a symmetrical support structure, which can evenly distribute the weight of the electrical box unit 20 and avoid frame deformation or loosening of detachable fasteners (such as bolts) caused by unilateral force.

[0058] In practice, the detachable fasteners can be bolts. Multiple mounting holes are provided on the surface of the support plate 102 and the bottom surface of the electrical box unit 20 along the length direction. Bolts are inserted into the mounting holes of the support plate 102 and the electrical box unit 20. The connection between the support plate 102 and the electrical box unit 20 is ensured by multi-point bolt connection.

[0059] See Figure 2 and Figure 3 In some embodiments, the multiple support columns include four corner columns 1121 and at least one intermediate column 1122;

[0060] Both the first frame 111 and the second frame 210 are rectangular frame structures;

[0061] In the support module 110 except the bottom layer, four corner posts 1121 are set at the four corners of the first frame 111 of the adjacent lower support module 110, and the middle post 1122 is set at the middle of the long side of the first frame 111 of the adjacent lower support module 110.

[0062] In the lowest layer support module 110, four corner posts 1121 are set at the four corners of the second frame 210, and the middle post 1122 is set at the middle of the long side of the second frame 210.

[0063] In this embodiment, by rationally arranging the corner posts 1121 and the middle posts 1122 in the rectangular frame structure, a stable three-dimensional support system is formed in the multi-layer support module 110, which can evenly distribute the load of the battery box unit 20 and effectively improve the overall rigidity and deformation resistance of the battery mounting frame 10. At the same time, the standardized layout facilitates modular production and assembly, reduces manufacturing difficulty and cost, and enhances the versatility and applicability of the frame structure.

[0064] See Figure 3 In some embodiments, each support module 110 further includes multiple reinforcing beams 120, which are arranged along the long side of the second frame 210, and both ends of each reinforcing beam 120 are fixedly connected to the two long sides of the second frame 210, respectively. In this embodiment, the multiple reinforcing beams 120 can distribute the load and torque borne by the second frame 210, preventing downward deflection deformation in the middle of the second frame 210 due to the large suspended span, thereby improving the structural stability and load-bearing capacity of the support module 110.

[0065] See Figure 3 In some embodiments, in each support module 110, the bottom end of the support plate 102 is fixedly connected to a reinforcing rib plate 130 extending along the length direction of the support plate 102, and the reinforcing rib plate 130 is fixedly connected to a plurality of reinforcing beams 120.

[0066] The surface of the reinforcing rib plate 130 is perpendicular to the horizontal plane, and a triangular rib plate 140 is fixedly connected between the bearing plate 102 and the reinforcing rib plate 130.

[0067] In this embodiment, the reinforcing rib 130 extends along the length of the bearing plate 102 and is fixed to the reinforcing beam 120 to enhance the longitudinal stiffness of the bearing plate 102. The triangular rib 140 connects the bearing plate 102 and the reinforcing rib 130. The triangular stabilizing structure further enhances the local torsional and bending resistance of the bearing plate 102, and together ensures the bearing stability of the support module 110.

[0068] See Figure 1 , Figure 2 and Figure 4 In some embodiments, at least two intermediate longitudinal beams 230 are fixedly connected between the long sides of the second frame 210;

[0069] The battery mounting frame 10 also includes two assembly units 300. Each assembly unit 300 includes a connecting plate 310 and a sub-beam 320. The top end of each sub-beam 320 is fixedly connected to an intermediate longitudinal beam 230, the bottom end of each sub-beam 320 abuts against the top surface of a frame 30, and the outer side of the sub-beam 320 is fixedly connected to the outer side of the corresponding frame 30 through the connecting plate 310.

[0070] In this embodiment, the battery mounting frame 10 and the vehicle frame 30 are stably connected through the structural design of the intermediate longitudinal beam 230, the sub-beam 320 and the connecting plate 310, which effectively distributes the load, enhances the torsional stiffness, improves vibration buffering and assembly efficiency, and combines lightweight, low cost and multi-vehicle adaptability.

[0071] In practice, each assembly unit also includes a diagonal bracing plate 330, which is located on the outside of the sub-beam. Both ends of the diagonal bracing plate 330 are fixedly connected to the sub-beam and the second frame, respectively, to further improve the connection reliability between the assembly unit 300 and the support base assembly 200.

[0072] See Figure 3 and Figure 4 In some embodiments, both the first frame 111 and the second frame 210 are frame structures constructed by connecting profile components. By using profile components to connect the first frame 111 and the second frame 210, the high strength and lightweight characteristics of the profiles, combined with flexible connection methods, not only ensure the structural strength and stability of the battery mounting frame 10, but also facilitate modular production and assembly, while reducing manufacturing and maintenance costs and improving the applicability and production efficiency of the frame.

[0073] In specific implementation, both the first frame 111 and the second frame 210 can be frame structures formed by connecting profile components. In one feasible embodiment, the second frame 210 is a frame structure formed by connecting rectangular profiles end to end; in another feasible embodiment, the short side of the first frame 111 is a rectangular profile component, and the long side is an L-shaped profile component.

[0074] In addition, to further improve the lightweighting of the battery mounting frame 10, the first frame 111 and the second frame 210 can also have multiple weight-reduction holes.

[0075] In some embodiments, both the first frame 111 and the second frame 210 are provided with wiring holes for threading wires from the electrical box unit 20. This facilitates the wiring design of the electrical box unit 20, prevents wires from scattering, and improves the structural stability and aesthetics of the power battery system.

[0076] Based on the same inventive concept, this application also provides a vehicle. The vehicle provided in this embodiment includes the battery mounting frame 10 provided in any of the above embodiments of this application.

[0077] It is understood that the vehicle provided in this application embodiment can be a van, truck, vehicle-mounted container, etc., and this application does not impose specific limitations on it. The vehicle provided in this application embodiment has the beneficial effects of the battery mounting frame 10 provided in this application embodiment. For details, please refer to the specific description of the flip pedal in the above embodiments, which will not be repeated here.

[0078] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A battery mounting frame for fixing a power battery system of a vehicle, the power battery system including a plurality of electric box units, characterized by, The battery mounting frame includes a power battery bracket; The power battery bracket includes multiple bracket modules stacked along a direction perpendicular to the bottom surface of the vehicle; Each of the bracket modules includes a first frame, a column assembly, and a first support capable of supporting the electrical box unit. The first support is detachably and fixedly connected to the electrical box unit and is fixedly connected to the first frame. The column assembly includes a plurality of support columns, which are distributed along the periphery of the first frame and fixedly connected to the first frame. The column assembly is used for a detachable and fixed connection with the first frame of the adjacent lower-level support module.

2. The battery mounting frame according to claim 1, wherein The battery mounting frame also includes a bracket base assembly, which includes a second frame and a second support capable of supporting the battery box unit. The second support is fixedly connected to the second frame and detachably fixedly connected to the battery box unit. The bottom of the second frame is connected to the vehicle frame. The column assembly of the lowest layer support module is detachably and fixedly connected to the second frame.

3. The battery mounting frame according to claim 2, wherein Both the second support and the first support include two support plates. The extension direction of the support plates is parallel to the length direction of the electrical box unit. The two support plates are arranged opposite each other along the width direction of the electrical box unit, and the surface of the support plates is connected to the bottom surface of the electrical box unit by detachable fasteners.

4. The battery mounting frame according to claim 3, wherein The plurality of support columns include four corner columns and at least one intermediate column; Both the first frame and the second frame are rectangular frame structures; In the support modules except the bottom layer, the four corner posts are located at the four corners of the first frame of the adjacent layer of the support module, and the middle post is located at the middle of the long side of the first frame of the adjacent layer of the support module. In the lowest layer of the support module, the four corner posts are located at the four corners of the second frame, and the middle post is located at the middle of the long side of the second frame.

5. The battery mounting frame according to claim 3, wherein Each of the bracket modules also includes a plurality of reinforcing beams, which are arranged along the long side of the second frame, and each of the reinforcing beams is fixedly connected at both ends to the two long sides of the second frame.

6. The battery mounting frame according to claim 5, wherein In each of the support modules, a reinforcing rib plate extending along the length direction of the support plate is fixedly connected to the bottom end of the support plate, and the reinforcing rib plate is fixedly connected to the plurality of reinforcing beams; The surface of the reinforcing rib is perpendicular to the horizontal plane, and a triangular rib is fixedly connected between the bearing plate and the reinforcing rib.

7. The battery mounting frame according to claim 4, wherein At least two intermediate longitudinal beams are fixedly connected between the long sides of the second frame; The battery mounting frame also includes two assembly units, each of which includes a connecting plate and a sub-beam. The top end of each sub-beam is fixedly connected to one of the intermediate longitudinal beams, the bottom end of the sub-beam abuts against the top surface of a vehicle frame, and the outer side of the sub-beam is fixedly connected to the outer side of the corresponding vehicle frame via the connecting plate.

8. The battery mounting frame according to any one of claims 2 to 7, wherein Both the first frame and the second frame are frame structures made of connected profile parts.

9. The battery mounting frame according to any one of claims 2 to 7, wherein Both the first frame and the second frame are provided with wiring holes, which are used to pass through the wires of the electrical box unit.

10. A vehicle characterized by comprising: A battery mounting frame including any one of claims 1 to 9.

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