Battery pack, mounting assembly thereof and new energy automobile

Abstract

The utility model discloses a battery pack, a mounting assembly thereof and a new energy automobile. The battery pack mounting assembly comprises a mounting frame and a connecting piece, the mounting rack comprises a first bracket and a second bracket; the first bracket is provided with a mounting position; the second support is connected to one side of the first support, the section, perpendicular to the length direction of the mounting frame, of the second support comprises a plurality of edges, and at least one of the edges is inclined relative to the adjacent edge; the connecting piece is arranged at the mounting position. In this way, the stability of the battery pack mounting assembly can be improved, and then the stability of the whole new energy automobile is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery pack and its mounting assembly, and a new energy vehicle. Background Art

[0002] With the development of science and technology and the enhancement of people's environmental awareness, new energy vehicles are becoming more and more popular among the public. As the power provider of new energy vehicles, power batteries need to be installed on the vehicle system in a certain way.

[0003] In the related technology, the power battery is installed on the new energy vehicle through a certain installation component. In addition to bearing the large weight of the power battery pack itself, the installation component also has to withstand the impact caused by bumps during the vehicle's movement. Therefore, certain requirements need to be met in terms of stability and lightweight of the installation component. Utility Model Content

[0004] The main technical problem solved by the present application is to provide a battery pack and its mounting assembly, and a new energy vehicle, which can improve the stability of the battery pack mounting assembly, and thus improve the stability of the entire new energy vehicle.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: providing a battery pack mounting assembly, which includes a mounting frame and a connecting piece; the mounting frame includes a first bracket and a second bracket, the first bracket has a mounting position; the second bracket is connected to one side of the first bracket, wherein the second bracket includes multiple edges along a cross-section perpendicular to the length direction of the mounting frame, and at least one of the multiple edges is inclined relative to the adjacent edge; the connecting piece is arranged at the mounting position.

[0006] Specifically, the cross-sectional shape of the second bracket along the length direction perpendicular to the mounting bracket is a triangle.

[0007] The first bracket is provided with a first mounting hole and a second mounting hole which are arranged opposite to each other, and the connecting member is arranged in the first mounting hole and the second mounting hole.

[0008] Furthermore, the battery pack mounting assembly also includes a mounting piece, the connecting piece has a mounting channel, the mounting piece is passed through the mounting channel, and is mounted on the frame of the new energy vehicle.

[0009] Among them, the first bracket and the second bracket are arranged along the height direction of the mounting frame, the second bracket is provided with a third mounting hole corresponding to the first mounting hole and the second mounting hole, the third mounting hole is located in the extension direction of the mounting channel, and the connecting member is further penetrated through the third mounting hole.

[0010] Specifically, the connecting piece is a T-shaped bushing, and the T-shaped bushing is respectively inserted into the first mounting hole and the second mounting hole.

[0011] Specifically, the cross-sectional shape of the first bracket along a length direction perpendicular to the mounting frame is rectangular.

[0012] The first bracket and the second bracket are integrally formed.

[0013] Specifically, the first bracket and the second bracket are integrally formed by a rolling process.

[0014] The thickness of the mounting frame is 1-3 mm.

[0015] Among them, the material of the mounting frame is duplex stainless steel.

[0016] To solve the above technical problems, another technical solution adopted in the present application is: to provide a battery pack, which includes a battery pack body and the battery pack mounting assembly as described above, wherein the number of the battery pack mounting assemblies is two and they are respectively installed on both sides of the battery pack body.

[0017] In order to solve the above technical problems, another technical solution adopted in the present application is: to provide a new energy vehicle, which includes a frame and a battery pack as described above, and the battery pack is installed on the frame.

[0018] The beneficial effects of the present application are as follows: Different from the prior art, the battery pack mounting assembly of the present application includes a mounting frame and a connecting piece, the mounting frame includes a first bracket and a second bracket, the first bracket has a mounting position, the second bracket is connected to one side of the first bracket, and its cross section along the length direction perpendicular to the mounting frame includes multiple edges, and at least one of the multiple edges is inclined relative to the adjacent edge; the connecting piece is arranged at the mounting position. In the above manner, the second bracket includes multiple edges along the cross section perpendicular to the length direction of the mounting frame, and at least one edge is inclined relative to its adjacent edge. Such an arrangement can make the at least one edge mentioned above play a certain supporting role to its adjacent edge, that is, the second bracket structure itself has a self-supporting effect, thereby improving the stability of the battery pack mounting assembly, and then improving the stability of the battery pack installed in the new energy vehicle, as well as the stability of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1 It is a structural schematic diagram of an implementation scheme of a battery pack installation assembly of the present application;

[0021] Figure 2It is a structural schematic diagram of an implementation scheme of a battery pack installation assembly of the present application;

[0022] Figure 3 It is an exploded view of a part of the structure of an embodiment of a battery pack mounting assembly of the present application;

[0023] Figure 4 It is a structural schematic diagram of an embodiment of a battery pack of the present application;

[0024] Figure 5 It is an exploded structural diagram of an embodiment of a battery pack of the present application;

[0025] Figure 6 It is an exploded structural diagram of an embodiment of a battery pack of the present application. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] Please also read Figure 1-3 The present application provides a battery pack mounting assembly 100. It should be noted that the battery pack mounting assembly 100 in the present application may be a part of a battery pack, which may refer to a battery pack corresponding to a power battery of a new energy vehicle, such as an electric vehicle, a hybrid vehicle, an extended-range vehicle, etc., which may provide power for the driving of the new energy vehicle. The battery pack mounting assembly 100 may be connected and mounted to the main structure of the battery pack, and is used to further mount the battery pack on the frame of the new energy vehicle.

[0028] The battery pack mounting assembly 100 may include a mounting frame 10 and a connector 20. It should be noted that the mounting frame 10 is the main structure of the battery pack mounting assembly 100 and provides support for the installation of the battery pack. The connector 20 is used to provide connection and fixation between the mounting frame 10 and the vehicle frame.

[0029] Specifically, the mounting frame 10 may include a first bracket 11 and a second bracket 12 connected to each other. The first bracket 11 has a mounting position, the second bracket 12 is located on one side of the first bracket 11, and its cross section along the length direction perpendicular to the mounting frame 10 includes multiple edges, and at least one of the multiple edges is inclined relative to its adjacent edge. Specifically, the second bracket 12 may include at least three edges along its cross section perpendicular to the length direction of the mounting frame 10. In this embodiment, one of the edges may be inclined relative to another edge or two other edges, and one of the edges is not parallel and perpendicular to another edge or two other edges. Further, the cross section may be composed of multiple edges connected end to end. In addition, the edge here can be a strictly straight edge, or it can be an edge with certain bends, bends, etc. at both ends or in the middle, but the main body is in a straight edge state, which is not specifically limited here.

[0030] The cross-sectional shape of the first bracket 11 in this direction is not limited, as long as it can provide corresponding support and provide space for accommodating the aforementioned installation position to meet actual use requirements.

[0031] It should be noted that the length direction, width direction and height direction of the mounting frame 10 are consistent with the battery pack, which are respectively the x direction, the y direction and the z direction. Figure 1 and Figure 4 shown.

[0032] Further, the second bracket 12 being located on one side of the first bracket 11 may mean that the second bracket 12 and the first bracket 11 are arranged along the y direction or the z direction, or the two are randomly arranged, which is not specifically limited here. Specifically, the first bracket 11 may be located on the side of the second bracket 12 away from the battery pack body 200, or the second bracket 12 is located on the side of the first bracket 11 away from the battery pack body 200, or the first bracket 11 and the second bracket 12 are equidistant or approximately equidistant from the battery pack body 200, which can be selected according to actual needs and is not specifically limited here.

[0033] In addition, the connector 20 can be arranged at the installation position, and specifically connected to the first bracket 11 in a detachable or non-detachable manner. The connector 20 can be used to connect the mounting frame 10 to the new energy vehicle, and specifically, the connector 20 can be directly or indirectly connected to the vehicle frame.

[0034] Furthermore, the connection between the battery pack mounting assembly 100 and the vehicle frame can be a detachable or non-detachable connection, such as welding, bonding, clamping, screwing, plugging, riveting, etc., which are not limited here. In one application scenario, the two are connected in a detachable manner to facilitate replacement of the battery pack when the battery in the battery pack is dead or damaged.

[0035] It should be noted that in this embodiment, the battery pack mounting assembly 100 includes a mounting frame 10 and a connector 20. The mounting frame 10 includes a first bracket 11 and a second bracket 12. The first bracket 11 has a mounting position, and the second bracket 12 is connected to one side of the first bracket 11, wherein the second bracket 12 includes multiple edges along a cross section perpendicular to the length direction of the mounting frame 10, and at least one of the multiple edges is inclined relative to another edge; the connector 20 is arranged at the mounting position. In the above manner, the second bracket 12 includes multiple edges along a cross section perpendicular to the length direction of the mounting frame 10, and at least one of the multiple edges is inclined relative to its adjacent edge. Such an arrangement can enable the at least one edge to play a certain supporting role to its adjacent edge, that is, the second bracket structure itself has a self-supporting role, thereby improving the stability of the battery pack mounting assembly 100, and then improving the stability of the battery pack installed on the new energy vehicle, as well as the stability of the entire vehicle.

[0036] In one embodiment, the cross-sectional shape of the second bracket 12 along the length direction perpendicular to the mounting frame 10 is a triangle. It should be noted that the triangle here may include an ideal triangle, or may include a triangle that is similar to but not identical to an ideal triangle in geometric shape, such as a triangle that is composed of three sides connected end to end, but the angle between two adjacent sides is rounded, or the sides are partially bent or folded.

[0037] In the above method, a triangular cross-section is used. In addition to making the overall structure more stable, it can save space and reduce the use of materials compared to other polygons or polygonal shapes used in related technologies, thereby saving costs and making the battery pack installation assembly 100, battery pack, and new energy vehicles more lightweight.

[0038] Of course, in other implementations, the above-mentioned cross-sectional shape may also include other shapes, such as trapezoid, pentagon, hexagon, etc., which are not specifically limited here.

[0039] In one embodiment, the first bracket 11 is provided with a first mounting hole 111 and a second mounting hole 112 which are arranged opposite to each other. The axial direction of the first mounting hole 111 and the axial direction of the second mounting hole 112 may be on the same straight line and consistent with the z-direction. Furthermore, the connector 20 may be inserted into the first mounting hole 111 and the second mounting hole 112, and the connector 20 has a mounting channel 21, and the axial direction of the mounting channel 21 may be consistent with the first mounting hole 111 and the second mounting hole 112, so as to be connected and fixed with the frame of the new energy vehicle.

[0040] In actual use, the mounting frame 10 can be directly or indirectly connected to the vehicle frame through the connector 20 that passes through the first mounting hole 111 and the second mounting hole 112 , thereby achieving the installation of the battery pack of the new energy vehicle.

[0041] The connection between the connector 20 and the first bracket 11 can be a detachable or non-detachable connection, such as welding, bonding, clamping, screwing, plugging, riveting, etc., which is not limited here. In an application scenario, the connector 20 is fixed to the first bracket 11 by arc welding.

[0042] Specifically, in one application scenario, the connector 20 is used for indirect connection between the mounting frame 10 and the vehicle frame. The battery pack mounting assembly 100 may also include a mounting member, which is passed through the mounting channel 21 of the connector 20 and connected to the vehicle frame, thereby installing the mounting frame 10 on the vehicle frame.

[0043] Furthermore, the connecting member 20 can be a T-shaped bushing, which is respectively inserted into the first mounting hole 111 and the second mounting hole 112, and the mounting member can be a bolt, which is inserted into the mounting channel 21 of the T-shaped bushing. In this way, the T-shaped bushing can play a role in supporting stability, shock absorption and noise reduction. In addition, it can also play a certain protective role for the mounting member.

[0044] In one embodiment, the first bracket 11 and the second bracket 12 can be arranged along the height direction of the battery pack, so that the existing space in the height direction can be fully utilized to a certain extent, which can save more space and reduce space waste compared to arranging along the width direction. Of course, in other embodiments, the first bracket 11 and the second bracket 12 can also be arranged along the width direction of the battery pack, which is not specifically limited in this application.

[0045] Further, in one embodiment, the second bracket 12 is provided with a third mounting hole 121 corresponding to the first mounting hole 111 and the second mounting hole 112, and the third mounting hole 121 may be located in the extension direction of the mounting channel 21 of the connector 20. Specifically, the axial direction of the third mounting hole 121 is consistent with the axial direction of the mounting channel 21, and may be located on the extension line of the axial direction of the mounting channel 21. Furthermore, the mounting member may be further penetrated through the third mounting hole 121 and mounted on the frame of the new energy vehicle.

[0046] During the actual installation process, the mounting member can be sequentially passed through the third mounting hole 121 and the mounting channel 21 of the connecting member 20 , and then connected and fixed to the vehicle frame.

[0047] In one embodiment, the cross-sectional shape of the first bracket 11 along the length direction perpendicular to the mounting frame 10 is a rectangle. It should be noted that the rectangle here may include an ideal rectangle, or may include a shape that is similar to but not identical to the ideal rectangle in terms of geometry, such as a shape composed of four mutually perpendicular sides, but with a rounded angle between two adjacent sides, or with a partially curved or bent side. Further, in the cross-sectional direction, one side of the triangular second bracket 12 corresponds to one side of the first bracket 11, for example, the two sides are shared sides or overlapped and connected together.

[0048] Of course, in other embodiments, the cross-sectional shape of the first bracket 11 in the length direction may also be other shapes, such as trapezoid, pentagon, hexagon, etc., which is not specifically limited here.

[0049] In one embodiment, the first bracket 11 and the second bracket 12 are an integrated structure, and the two can be integrally formed.

[0050] In one application scenario, the cross-sectional shape of the first bracket 11 along the direction perpendicular to the length is a rectangle, and the cross-sectional shape of the second bracket 12 in the direction is a triangle, wherein a right-angled side of the triangle and a side of the rectangle are common sides.

[0051] It should be noted that the mounting frame 10 with an integrated structure is easy to install and has relatively high strength, which can improve the stability of the battery pack mounting assembly 100 and further improve the stability of the entire vehicle.

[0052] Specifically, in one embodiment, the first bracket 11 and the second bracket 12 can be integrally formed by a rolling process.

[0053] It should be noted that in the related art, the mounting frame 10 is composed of three pieces of stamped steel. This will, on the one hand, lead to complicated manufacturing processes of the mounting components and a heavier mounting frame 10, thereby increasing the weight of the entire battery pack and the weight of the entire new energy vehicle, affecting the driving range of the entire vehicle and not being energy-efficient. In addition, this structure requires a certain cross-sectional width for the frame of the battery pack body 200, occupying the space of the entire battery pack body 200 in the width direction, thereby causing a certain amount of space waste. In the present embodiment, the first bracket 11 and the second bracket 12 are integrally formed by a rolling process, which can reduce material utilization and simplify the manufacturing process, thereby reducing production costs to a certain extent. Since the mounting frame 10 is the main structure of the battery pack mounting assembly 100 and occupies most of the weight and volume of the battery pack mounting assembly 100, the lightweight of the first bracket 11 and the second bracket 12 plays a vital role in the lightweight and space occupation of the battery pack mounting assembly 100. The mounting frame 10 in the present embodiment can also reduce the weight of the battery pack mounting assembly 100, reduce the weight of the battery pack and the new energy vehicle, and increase the cruising range of the vehicle; and can reduce the y-direction dimension of the entire battery pack, reduce space waste, and improve space utilization.

[0054] Of course, in other embodiments, the first bracket 11 and the second bracket 12 may also be split structures. Using this structure can make the overall setting of the mounting frame 10 more flexible and can be flexibly adjusted according to the specific shapes and structures of other components such as the connecting parts 20 and the mounting parts.

[0055] Furthermore, in one embodiment, the material of the mounting frame 10 may be duplex stainless steel such as DP780, DP980, etc., and the material may be selected based on actual requirements for strength, hardness, density, etc., and is not limited here.

[0056] In addition, the thickness of the mounting frame 10 may be 1-3 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc., and may also be selected according to requirements for strength, quality, etc. in actual use.

[0057] It should be noted that the use of the battery pack mounting assembly 100 in the above embodiment of the present application can solve the problem of the battery pack mounting assembly 100 being heavy and wasted space in the y direction. In an application scenario, the solution adopted in the present application can be about 10% lighter in weight than the solution in the related art, and the y-direction space can be saved by 40%.

[0058] See also Figure 4-6The present application also provides a battery pack 1000. In one embodiment, the battery pack 1000 includes a battery pack body 200 and a battery pack mounting assembly 100, wherein the number of the battery pack mounting assemblies 100 is two and can be installed on both sides of the battery pack body 200 respectively.

[0059] Specifically, the battery pack body 200 may include a box body 210 and a battery 220 accommodated in the box body, wherein the box body may include a frame 211, a cover body 212, etc., for protecting the battery.

[0060] Furthermore, the battery pack mounting assembly 100 can be connected to the corresponding frame 211. Specifically, the battery pack mounting assembly 100 can be connected to the frame 211 of the battery pack body 200 in a detachable or non-detachable manner, such as welding, bonding, snap-on, screwing, plugging, riveting, etc. In one application scenario, the battery pack mounting assembly 100 is installed on the frame 211 by arc welding to increase the reliability and stability of the connection between the battery pack mounting assembly 100 and the battery pack body 200. Specifically, the side of the first bracket 11 and the second bracket 12 close to the frame 211 can be welded to the outer wall of the frame 211.

[0061] The shape, structure, function, material, size, etc. of the battery pack mounting assembly 100 in this embodiment are the same as or similar to those in the aforementioned battery pack mounting assembly 100 embodiment. For relevant details, please refer to the aforementioned embodiment and no specific limitation is made here.

[0062] Furthermore, the present application also provides a new energy vehicle, which may be an electric vehicle, a hybrid vehicle, an extended-range vehicle, or the like, which may be powered by a power battery.

[0063] Among them, the new energy vehicle may include a frame and a battery pack, and the battery pack is installed on the frame. Specifically, the battery pack is connected to the frame through its battery pack mounting assembly. Specifically, the connection between the battery pack mounting assembly and the frame can be a detachable or non-detachable connection, such as welding, bonding, snap-on, screw connection, plug-in connection, riveting, etc., which are not limited here. In one application scenario, the two are connected in a detachable manner to facilitate the replacement of the battery pack when the battery in the battery pack is out of power or damaged. In another application scenario, the two are connected in a non-detachable manner to improve the stability of the battery pack installation and the stability of the entire vehicle.

[0064] It should also be noted that the shape, structure, function, material, size, etc. of the battery pack in this embodiment are the same or similar to those in the aforementioned battery pack embodiment. For relevant details, please refer to the aforementioned embodiment, and no specific limitation is made here.

[0065] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A battery pack mounting assembly, characterized in that: The battery pack mounting assembly comprises: Mounting bracket, including: A first bracket having a mounting position; and a second bracket connected to one side of the first bracket, wherein the second bracket includes a plurality of edges along a cross section perpendicular to the length direction of the mounting frame, and at least one of the plurality of edges is inclined relative to an adjacent edge; and A connecting piece is arranged at the installation position.

2. The battery pack mounting assembly according to claim 1, characterized in that: The cross-sectional shape of the first bracket along the length direction perpendicular to the mounting frame is rectangular; and / or the cross-sectional shape of the second bracket along the length direction perpendicular to the mounting frame is triangular.

3. The battery pack mounting assembly according to claim 1, characterized in that: The first bracket is provided with a first mounting hole and a second mounting hole which are arranged opposite to each other, and the connecting member is arranged in the first mounting hole and the second mounting hole.

4. The battery pack mounting assembly according to claim 3, characterized in that: It also includes a mounting piece, the connecting piece has a mounting channel, the mounting piece is passed through the mounting channel, and is mounted on the frame of the new energy vehicle.

5. The battery pack mounting assembly according to claim 4, characterized in that: The first bracket and the second bracket are arranged along the height direction of the mounting frame, the second bracket is provided with a third mounting hole corresponding to the first mounting hole and the second mounting hole, the third mounting hole is located in the extension direction of the mounting channel, and the connecting member is further penetrated through the third mounting hole.

6. The battery pack mounting assembly according to claim 3, characterized in that: The connecting member is a T-shaped bushing, and the T-shaped bushing is respectively inserted into the first mounting hole and the second mounting hole.

7. The battery pack mounting assembly according to claim 1, characterized in that: The first bracket and the second bracket are formed in one piece.

8. The battery pack mounting assembly according to claim 7, characterized in that: The mounting frame has a thickness of 1-3 mm and is made of duplex stainless steel.

9. A battery pack, characterized in that: It comprises a battery pack body and a battery pack mounting assembly as described in any one of claims 1 to 8, wherein the number of the battery pack mounting assemblies is two and they are respectively mounted on both sides of the battery pack body.

10. A new energy vehicle, characterized in that: It comprises a vehicle frame and a battery pack as claimed in claim 9, wherein the battery pack is mounted on the vehicle frame.

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