Battery pack bracket, bracket assembly and vehicle

Abstract

The invention provides a battery pack bracket, a bracket assembly and a vehicle wherein the battery pack bracket comprises: a support platform for mounting a battery pack; the cantilever beams are arranged on the two sides of the supporting platform at intervals in the first direction; wherein the supporting platform is fixedly connected to the two cantilever beams, and one end of each cantilever beam is provided with a connecting structure to be connected with an external structure; the width of at least part of the cantilever beam in the second direction is gradually reduced in the direction away from the connecting structure; the cantilever beam is at least composed of a bottom plate and two side plates, the bottom plate extends in the third direction, the two side plates are fixedly connected to the two sides of the bottom plate in the first direction respectively, and a plurality of connecting bodies are connected between the two side plates. The battery pack bracket provided by the invention can give consideration to both structural strength and installation convenience.

Description

Technical Field

[0001] The present invention relates to the technical field of brackets, and in particular to a battery pack bracket, a bracket assembly and a vehicle. Background Art

[0002] In the related art, the battery pack bracket is a cage-type structure, which uses multiple rectangular tubes welded together to achieve the required structural strength. However, due to the complexity of its cage-type structure, the operating space during battery pack installation is limited, and the installation efficiency is low. The related art does not provide a solution that takes into account both structural strength and installation convenience. Summary of the invention

[0003] Embodiments of the present invention provide a battery pack bracket, a bracket assembly and a vehicle to at least partially solve the above-mentioned technical problems.

[0004] In a first aspect, an embodiment of the present invention provides a battery pack bracket, comprising:

[0005] Support platform for mounting the battery pack;

[0006] At least two cantilever beams are arranged at intervals on both sides of the support platform along a first direction;

[0007] Wherein, the support platform is respectively fixedly connected to the two cantilever beams, one end of the cantilever beam has a connecting structure for connecting to an external structure; the width of at least a portion of the cantilever beam in the second direction gradually decreases in a direction away from the connecting structure;

[0008] The cantilever beam is composed of at least a bottom plate and two side plates, the bottom plate extends along a third direction, the two side plates are fixedly connected to two sides of the bottom plate in a first direction, and a plurality of connectors are connected between the two side plates.

[0009] Optionally, in some embodiments of the present application, the cantilever beam includes:

[0010] A mounting portion, provided with the connecting structure, and the mounting portion is fixedly connected to the first side of the supporting platform;

[0011] A support portion, fixedly connected to the second side of the support platform;

[0012] A transition portion connected between the mounting portion and the supporting portion;

[0013] Wherein, the mounting portion is composed of at least two side panels, the supporting portion and the transition portion are both composed of at least the bottom plate and two side panels, and the width of the transition portion in the second direction gradually decreases in the direction away from the mounting portion.

[0014] Optionally, in some embodiments of the present application, the cantilever beam further includes:

[0015] A reinforcing rib extending from the transition portion to the supporting portion;

[0016] Wherein, the reinforcing rib is fixedly connected to the bottom plate.

[0017] Optionally, in some embodiments of the present application, the reinforcing rib is disposed between the two side panels, and at least a portion of the connector passes through the reinforcing rib.

[0018] Optionally, in some embodiments of the present application, the support platform includes:

[0019] A first crossbeam, fixedly connected to the mounting portions of the two cantilever beams respectively;

[0020] A second crossbeam, fixedly connected to the supporting parts of the two cantilever beams respectively;

[0021] A plurality of tension beams, used to provide a support surface for supporting the battery pack, wherein the plurality of tension beams are arranged at intervals along the first direction;

[0022] Wherein, the first end of the tension beam is fixedly connected to the first cross beam, and the second end of the tension beam is fixedly connected to the second cross beam.

[0023] Optionally, in some embodiments of the present application, the first crossbeam includes:

[0024] A load-bearing pipe connected between the mounting portions of the two cantilever beams;

[0025] The connecting member comprises a first connecting portion connected to the load-bearing pipe and a second connecting portion connected to the tension beam.

[0026] Optionally, in some embodiments of the present application, the connector further comprises:

[0027] A first transfer portion, connected between the first connection portion and the second connection portion;

[0028] Wherein, two ends of the first adapter portion are also respectively connected to the mounting portions of the two cantilever beams.

[0029] Optionally, in some embodiments of the present application, the second crossbeam includes:

[0030] A reinforcing pipe connected between the supporting parts of the two cantilever beams;

[0031] The fixing member comprises a first fixing portion connected to the reinforcing pipe member and a second fixing portion connected to the tension beam.

[0032] Optionally, in some embodiments of the present application, the fixing member further includes:

[0033] a second adapter portion, connected between the first fixing portion and the second fixing portion;

[0034] Wherein, the support portion is formed with a boss, and at least a portion of the second transition portion overlaps the boss.

[0035] Optionally, in some embodiments of the present application, the battery pack bracket further includes:

[0036] A flexible member, used for buffering between the support platform and the battery pack;

[0037] Wherein, the flexible member is arranged on the supporting surface of the tension beam.

[0038] In a second aspect, an embodiment of the present invention provides a bracket assembly, comprising a plurality of battery pack brackets as described above;

[0039] Wherein, a plurality of the battery pack brackets are stacked along the second direction.

[0040] Optionally, in some embodiments of the present application, the bracket assembly further includes:

[0041] A first support beam extending along the second direction, wherein the plurality of battery pack brackets are respectively connected to the first support beam through a connecting structure;

[0042] A second support beam, supported between two adjacent battery pack brackets;

[0043] Wherein, the second support beam and the first support beam are spaced apart in the third direction.

[0044] Optionally, in some embodiments of the present application, the cantilever beam includes:

[0045] A mounting portion, provided with the connecting structure, and the mounting portion is fixedly connected to the first side of the supporting platform;

[0046] A support portion, fixedly connected to the second side of the support platform;

[0047] A transition portion connected between the mounting portion and the supporting portion;

[0048] Wherein, the second supporting beam is connected between supporting portions of two adjacent cantilever beams in the second direction.

[0049] Optionally, in some embodiments of the present application, the connection structure is configured as a first connection hole, and the first support beam has a second connection hole matched with the first connection hole;

[0050] The bracket assembly also includes:

[0051] A fastening bolt is passed through the first connection hole and the second connection hole to fix the battery pack bracket and the first support beam.

[0052] In a third aspect, an embodiment of the present invention provides a vehicle, comprising a vehicle frame and the bracket assembly as described above; wherein the bracket assembly is mounted to the vehicle frame.

[0053] Beneficial effects of the embodiments of the present invention:

[0054] In an embodiment of the present invention, the main body of the battery pack bracket is formed by a support platform and two cantilever beams, and the width of at least part of the cantilever beam in the second direction is gradually reduced in the direction away from the connection structure, thereby increasing the operable space when installing the battery pack; on the basis of the above cantilever beam width setting to facilitate the installation of the battery pack, the cantilever beam is at least composed of a bottom plate and two side plates, and a plurality of connectors are connected between the two side plates. The use of such a cantilever beam structure can improve the structural strength of the cantilever beam and ensure the stability of the battery pack. Therefore, the battery pack bracket provided by the present invention can take into account both structural strength and installation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0056] Figure 1 is a three-dimensional schematic diagram of a battery pack bracket provided by an embodiment of the present invention;

[0057] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0058] Figure 3 is a top view of a battery pack bracket provided by an embodiment of the present invention;

[0059] Figure 4 yes Figure 3 A magnified schematic diagram of part B;

[0060] Figure 5 is a side view of a battery pack bracket provided by an embodiment of the present invention;

[0061] Figure 6 yes Figure 5 A magnified schematic diagram of part C;

[0062] Figure 7 is a three-dimensional schematic diagram of a cantilever beam in a battery pack bracket provided by an embodiment of the present invention;

[0063] Figure 8 is a top view of a cantilever beam in a battery pack bracket provided by an embodiment of the present invention;

[0064] Fig. 9 is a schematic diagram of a first assembly process of a bracket assembly provided by an embodiment of the present invention;

[0065] Fig.10 is a schematic diagram of a second assembly process of a bracket assembly provided by an embodiment of the present invention;

[0066] Fig.11 is a schematic diagram of a third assembly process of a bracket assembly provided by an embodiment of the present invention;

[0067] Fig.12 yes Fig.11 An enlarged schematic diagram of part D in the middle;

[0068] Fig.13 is a schematic diagram of a fourth assembly process of a bracket assembly provided by an embodiment of the present invention;

[0069] Fig.14 It is a three-dimensional schematic diagram of a frame and a bracket assembly in a vehicle provided by an embodiment of the present invention.

[0070] Reference numerals:

[0071] 100. Battery pack bracket;

[0072] 110, cantilever beam; 110a, bottom plate; 110b, side plate; 110c, connector; 110d, reinforcing rib;

[0073] 111, mounting portion; 111a, first connecting hole; 112, supporting portion; 112a, boss; 113, transition portion;

[0074] 100a, supporting platform;

[0075] 120, cross beam; 121, load-bearing pipe; 122, connecting piece; 122a, first connecting part; 122b, second connecting part; 122c, first transition part;

[0076] 130, second cross beam; 131, reinforcing pipe; 132, fixing member; 132a, first fixing part; 132b, second fixing part; 132c, second transition part;

[0077] 140, tension beam; 141, support surface;

[0078] 150, flexible parts; 200, battery pack;

[0079] 10. Bracket assembly; 310. First support beam; 320. Second support beam; 321. Side wing; 322. Fixing hole; 311. Second connection hole; 330. Fastening bolt

[0080] 1. Vehicle; 20. Frame. DETAILED DESCRIPTION

[0081] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0082] In this application, unless otherwise stated, directional words such as "upper" and "lower" generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. In addition, in the description of this application, the term "including" means "including but not limited to". The terms first, second, third, etc. are used only as labels and do not impose numerical requirements or establish an order.

[0083] In this application, "and / or" describes the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural.

[0084] According to a first aspect of the present invention, referring to Figure 1 , Figures 5 to 8 The present application provides a battery pack bracket 100 , including: a supporting platform 100 a and a cantilever beam 110 .

[0085] The support platform 100a is used to install the battery pack 200; at least two cantilever beams 110 are arranged, and the two cantilever beams 110 are arranged at intervals on both sides of the support platform 100a along the first direction, and the support platform 100a is fixedly connected to the two cantilever beams 110 respectively, and the support platform 100a is supported by the cantilever beams 110, and the structure is simplified.

[0086] Here, the first direction indicates the left-right direction only for the convenience of introducing the specific embodiments of the present application. There is no absolute correspondence between the first direction and the left-right direction. Similarly, there is no absolute correspondence between the second direction and the up-down direction, and the third direction and the front-back direction. Moreover, the first direction, the second direction, and the third direction of the present application are only for expressing relative positional relationships. They only indicate approximate directions, not absolute geometric relationships.

[0087] In some embodiments, reference Figure 1 , Figures 5 to 8 One end of the cantilever beam 110 has a connection structure to connect to an external structure; the width of at least a portion of the cantilever beam 110 in the second direction gradually decreases in a direction away from the connection structure.

[0088] It can be understood that the connection structure and the external structure can be connected by bolt connection, welding, etc.

[0089] The width of at least part of the cantilever beam 110 in the second direction may be continuously reduced, for example, the slope of the top surface of the cantilever beam 110 is consistent; or the width of at least part of the cantilever beam 110 in the second direction may be varied in multiple stages, for example, the top surface of the cantilever beam 110 has multiple different slopes.

[0090] The cantilever beam 110 is composed of at least a bottom plate 110a and two side plates 110b. The bottom plate 110a extends along a third direction. The two side plates 110b are fixedly connected to both sides of the bottom plate 110a in the first direction, and a plurality of connectors 110c are connected between the two side plates 110b so that the two side plates 110b are maintained in a predetermined state.

[0091] It can be understood that the two side plates 110b form an open opening on the side away from the bottom plate 110a, and the arrangement of the connector 110c can effectively ensure that the size of the opening is consistent and improve the strength near the opening.

[0092] In the embodiment of the present invention, the main body of the battery pack bracket 100 is formed by the support platform 100a and the two cantilever beams 110, and the width of at least part of the cantilever beam 110 in the second direction is gradually reduced in the direction away from the connection structure, so as to increase the operable space when installing the battery pack 200; on the basis of the above width setting of the cantilever beam 110 to facilitate the installation of the battery pack 200, the cantilever beam 110 is at least composed of a bottom plate 110a and two side plates 110b, and a plurality of connectors 110c are connected between the two side plates 110b. The use of such a cantilever beam 110 structure can improve the structural strength of the cantilever beam 110 and ensure the stability of the battery pack 200. Therefore, the battery pack bracket 100 provided by the present invention can take into account both structural strength and installation convenience.

[0093] In some specific implementations, the side panels 110b and the bottom panel 110a may be made by bending or welding the panels, etc. The side panels 110b and the bottom panel 110a are made of high-strength steel plates (eg, 780DP), and the thickness thereof ranges from 5.0 to 10.0 mm.

[0094] In some specific implementations, the connector 110c may be in a tubular or columnar structure.

[0095] In some embodiments of the present application, reference Figure 1 and Figures 5 to 8 The cantilever beam 110 includes a mounting portion 111 , a supporting portion 112 and a transition portion 113 .

[0096] The mounting portion 111 is provided with the above-mentioned connection structure, and the mounting portion 111 is fixedly connected to the first side of the supporting platform 100a; the mounting portion 111 is composed of at least two side panels 110b, that is, a space penetrating from top to bottom is formed between the two side panels 110b corresponding to the mounting portion 111, so as to facilitate the connection between the mounting portion 111 and the external structure.

[0097] The support portion 112 is fixedly connected to the second side of the support platform 100a; the transition portion 113 is connected between the mounting portion 111 and the support portion 112; wherein the support portion 112 and the transition portion 113 are both at least composed of a bottom plate 110a and two side plates 110b, and the width of the transition portion 113 in the second direction gradually decreases in the direction away from the mounting portion 111. That is, the width of the mounting portion 111 in the second direction is greater than the width of the support portion 112 in the second direction, so that the left and right sides and the front side of the battery pack bracket 100 are respectively not blocked by structures, which facilitates the placement and fixation of the battery pack 200.

[0098] In some specific implementations, the connector 110c may be disposed between the two side plates 110b corresponding to the transition portion 113. Of course, if the size of the support portion 112 is sufficient, the connector 110c may also be disposed on the support portion 112.

[0099] In some embodiments of the present application, reference Figure 7 and Figure 8 The cantilever beam 110 further includes a reinforcing rib 110d. The reinforcing rib 110d extends from the transition portion 113 to the supporting portion 112, and the reinforcing rib 110d is fixedly connected to the bottom plate 110a.

[0100] By adopting such a solution, the reinforcement ribs 110 d are provided to compensate for the strength lost due to the reduction in the width of the cantilever beam 110 in the second direction, thereby improving the stability of the battery pack bracket 100 .

[0101] In some specific embodiments, since the width of the transition portion 113 in the second direction tends to decrease as it approaches the support portion 112, a reinforcing rib 110d is provided at the portion of the transition portion 113 close to the support portion 112. In addition, since the width of the support portion 112 in the second direction is the smallest, the entire transition portion 113 is provided with a reinforcing rib 110d to assist in improving the structural strength of the support portion 112.

[0102] In some embodiments of the present application, the reinforcing rib 110d is disposed between the two side plates 110b, and at least a portion of the connecting body 110c passes through the reinforcing rib 110d.

[0103] It can be understood that the reinforcing ribs 110d are parallel to the side plates 110b on both sides, so that the connecting body 110c is vertically penetrated through the reinforcing ribs 110d.

[0104] By adopting such a solution, the structural strength of the cantilever beam 110 is further improved through the cooperation between the connecting body 110 c and the reinforcing rib 110 d , and the stability of the cantilever beam 110 is improved.

[0105] In some embodiments of the present application, reference Figures 1 to 5 The supporting platform 100a includes: a first beam 120, a second beam 130120 and a tension beam 140.

[0106] The first cross beam 120 is fixedly connected to the mounting portions 111 of the two cantilever beams 110 respectively; the second cross beams 130120 are fixedly connected to the supporting portions 112 of the two cantilever beams 110 respectively; through the arrangement of the first cross beam 120 and the second cross beam 130120, the two cantilever beams 110 are connected into a whole.

[0107] There are multiple pull beams 140 for providing a support surface 141 for supporting the battery pack 200 , and the multiple pull beams 140 are arranged at intervals along the first direction; wherein the first end of the pull beam 140 is fixedly connected to the first beam 120 , and the second end of the pull beam 140 is fixedly connected to the second beam 130120 .

[0108] With such a solution, the first crossbeam 120 is provided to connect the mounting portions 111 of the two cantilever beams 110, thereby improving the strength of the mounting portion 111 when connected to the external structure. The second crossbeam 130120 is provided to not only connect the supporting portions 112 of the two cantilever beams 110 to improve the stability of the supporting portions 112, but also effectively prevent the battery pack 200 from being hit sideways and squeezed.

[0109] In some embodiments of the present application, reference Figures 1 to 5The first cross beam 120 includes a load-bearing pipe 121 and a connecting member 122. The load-bearing pipe 121 is connected between the mounting portions 111 of the two cantilever beams 110; the connecting member 122 has a first connecting portion 122a connected to the load-bearing pipe 121 and a second connecting portion 122b connected to the tension beam 140.

[0110] It can be understood that the load-bearing pipe 121 can be a rectangular pipe, which can withstand a large load. However, it is not conducive to the connection with the tension beam 140. If the tension beam 140 and the load-bearing pipe 121 are directly welded, additional tooling is required to assist in positioning the two, and the assembly efficiency is low.

[0111] Based on the above considerations, by providing a connecting member 122 having a first connecting portion 122a and a second connecting portion 122b respectively adapted to be positioned with the load-bearing pipe 121 and the tension beam 140 , the assembly efficiency of the tension beam 140 and the first cross beam 120 is improved.

[0112] In some embodiments of the present application, reference Figures 1 to 5 , the connecting member 122 further includes: a first adapter portion 122c. The first adapter portion 122c is connected between the first connecting portion 122a and the second connecting portion 122b. The second adapter portion 132c is provided so that the second connecting portion 122b and the first connecting portion 122a are at different heights, thereby making the tension beam 140 sink relative to the first cross beam 120, thereby reducing the risk of the battery pack 200 being hit on one side of the first cross beam 120.

[0113] Furthermore, in order to reduce deformation of the connecting member 122 due to the weight of the battery pack 200 , both ends of the first adapter portion 122 c are also respectively connected to the mounting portions 111 of the two cantilever beams 110 , thereby improving the stability of the connecting member 122 .

[0114] In some specific embodiments, reference Figures 1 to 5 The first transfer portion 122c is bent relative to the first connecting portion 122a and the second connecting portion 122b respectively.

[0115] In some embodiments of the present application, reference Figures 1 to 5 The second cross beam 130120 includes: a reinforcing pipe 131 and a fixing part 132.

[0116] The reinforcing pipe 131 is connected between the supporting portions 112 of the two cantilever beams 110 ; the fixing member 132 has a first fixing portion 132 a connected to the reinforcing pipe 131 and a second fixing portion 132 b connected to the tension beam 140 .

[0117] It can be understood that the reinforcing pipe 131 can be a rectangular pipe, which can withstand a large load. However, it is not conducive to the connection with the tension beam 140. If the tension beam 140 and the reinforcing pipe 131 are directly welded, additional tooling is required to assist in positioning the two, and the assembly efficiency is low.

[0118] Based on the above considerations, by setting the fixing member 132, the fixing member 132 has a first fixing portion 132a and a second fixing portion 132b respectively adapted to the reinforcing pipe 131 and the tension beam 140, thereby improving the assembly efficiency of the tension beam 140 and the second cross beam 130120.

[0119] In some embodiments of the present application, reference Figures 1 to 5 The fixing member 132 further includes: a second adapter portion 132c. The second adapter portion 132c is connected between the first fixing portion 132a and the second fixing portion 132b. The second adapter portion 132c is provided so that the second fixing portion 132b and the first fixing portion 132a are at different heights, thereby making the tension beam 140 sink relative to the second cross beam 130120, thereby reducing the risk of the battery pack 200 being hit on one side of the second cross beam 130120.

[0120] In some embodiments of the present application, reference Figure 5 and Figure 6 The support portion 112 is formed with a boss 112a, and at least a portion of the support portion 112 is overlapped with the boss 112a. By providing the boss 112a, the support portion 112 can provide support for the end of the second transition portion 132c, thereby improving the stability of the fixing member 132.

[0121] In some embodiments of the present application, the ends of the second fixing portion 132 b and the second transition portion 132 c may also be welded to the supporting portion 112 .

[0122] In some embodiments of the present application, reference Figure 1 and Figure 2 The battery pack bracket 100 further includes a flexible member 150. The flexible member 150 is disposed on the support surface 141 of the tension beam 140 and is used to provide a buffer between the support platform 100a and the battery pack 200. By providing the flexible member 150, the vibration received by the battery pack bracket 100 can be buffered, thereby reducing the impact on the battery pack 200.

[0123] In some specific implementations, the flexible member 150 may be made of materials such as rubber and silicone.

[0124] According to a second aspect of the present invention, referring to Figures 9 to 14, a bracket assembly 10 is also provided, comprising a plurality of battery pack brackets 100 as described above; the plurality of battery pack brackets 100 are stacked along the second direction. That is, the battery pack brackets 100 are arranged in multiple layers in the up and down direction, and each layer of the battery pack brackets 100 can respectively place the battery pack 200.

[0125] In some embodiments of the present application, reference Figures 9 to 14 The bracket assembly 10 also includes: a first support beam 310 and a second support beam 320 .

[0126] The first support beam 310 extends along the second direction, and the plurality of battery pack brackets 100 are respectively connected to the first support beam 310 through connection structures; that is, the first support beam 310 connects the plurality of battery pack brackets 100 into a whole.

[0127] It can be understood that the first support beam 310 here serves as the aforementioned external structure.

[0128] The second support beam 320 is supported between two adjacent battery pack brackets 100; the second support beam 320 and the first support beam 310 are arranged at intervals in the third direction. By setting the second support beam 320, the battery pack bracket 100 is supported at different positions in the third direction, thereby improving the stability of the battery pack bracket 100.

[0129] In some embodiments of the present application, reference Figures 9 to 14 The second support beam 320 is connected between the support portions 112 of two adjacent cantilever beams 110 in the second direction.

[0130] By adopting such a solution, the second support beam 320 provides auxiliary support to the support portion 112 located at the upper layer, thereby connecting the support portions 112 at different layers in the second direction into a whole, thereby improving the overall structural strength of the bracket assembly 10.

[0131] In some embodiments of the present application, reference Figures 10 to 12 The end of the second support beam 320 is also provided with a side wing 321, and the side wing 321 is provided with a fixing hole 322, so that the side wing 321 can be connected to the upper support part 112 by bolts, which facilitates the assembly of the upper and lower battery pack brackets 100.

[0132] In some embodiments of the present application, reference Figure 1 , Figures 9 to 14 The connection structure is constructed as a first connection hole 111 a , and the first support beam 310 has a second connection hole 311 matching the first connection hole 111 a .

[0133] The bracket assembly 10 further includes a fastening bolt 330 . The fastening bolt 330 is passed through the first connection hole 111 a and the second connection hole 311 to fix the battery pack bracket 100 and the first support beam 310 .

[0134] With such a solution, the battery pack bracket 100 is connected to the first support beam 310 by means of the fastening bolts 330 , so that the flatness of the support surface 141 in the battery pack bracket 100 can be easily adjusted.

[0135] In some specific embodiments, each layer of battery pack bracket 100 is pre-assembled before being connected to the first support beam 310. During installation, each layer of battery pack 200 can be assembled with each layer of battery pack bracket 100 first, and then the battery pack 200 and the battery pack bracket 100 can be installed as a whole to the first support beam 310. During the installation process, the battery pack bracket 100 can be fine-tuned according to the horizontal value of the battery pack 200. After reaching the designed horizontal value, the battery pack bracket 100 and the first support beam 310 are locked with the fastening bolts 330; alternatively, a layer of battery pack bracket 100 can be installed to the first support beam 310 first, and then the battery pack 200 can be assembled with the battery pack bracket 100 of this layer. Then install the battery pack bracket 100 of the previous layer, and so on, to achieve multi-layer assembly.

[0136] Reference Figures 9 to 14 , the present application exemplarily describes the assembly process of the bracket assembly 10 and the battery pack 200:

[0137] 1)Reference Fig. 9 , pre-assemble the first layer of battery pack brackets 100 and install them to the first support beam 310;

[0138] 2)Reference Fig.10 , installing the first battery pack 200 to the first-layer battery pack bracket 100;

[0139] 3)Reference Fig.11 , pre-assemble the second layer battery pack bracket 100 and install it to the first support beam 310 (this step mainly shows the installation of the battery pack bracket 100, and the battery pack 200 is not shown);

[0140] 4)Reference Fig.13 , the second battery pack 200 is installed on the second-layer battery pack bracket 100;

[0141] 5) Similarly, the preset number of layers of battery packs 200 are installed.

[0142] According to the third aspect of the present invention, referring to Fig.14 , a vehicle 1 is also provided, comprising a frame 20 and the above bracket assembly 10; wherein the bracket assembly 10 is mounted to the frame 20.

[0143] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A battery pack bracket, characterized in that: include: Support platform for mounting the battery pack; At least two cantilever beams are arranged at intervals on both sides of the support platform along a first direction; Wherein, the support platform is respectively fixedly connected to the two cantilever beams, one end of the cantilever beam has a connecting structure for connecting to an external structure; the width of at least a portion of the cantilever beam in the second direction gradually decreases in a direction away from the connecting structure; The cantilever beam is composed of at least a bottom plate and two side plates, the bottom plate extends along a third direction, the two side plates are fixedly connected to two sides of the bottom plate in a first direction, and a plurality of connectors are connected between the two side plates.

2. The battery pack bracket according to claim 1, characterized in that: The cantilever beam comprises: A mounting portion, provided with the connecting structure, and the mounting portion is fixedly connected to the first side of the supporting platform; A support portion, fixedly connected to the second side of the support platform; A transition portion connected between the mounting portion and the supporting portion; Wherein, the mounting portion is composed of at least two side panels, the supporting portion and the transition portion are both composed of at least the bottom plate and two side panels, and the width of the transition portion in the second direction gradually decreases in the direction away from the mounting portion.

3. The battery pack bracket according to claim 2, characterized in that: The cantilever beam further comprises: A reinforcing rib extending from the transition portion to the supporting portion; Wherein, the reinforcing rib is fixedly connected to the bottom plate.

4. The battery pack bracket according to claim 3, characterized in that: The reinforcing rib is arranged between the two side plates, and at least a part of the connecting body passes through the reinforcing rib.

5. The battery pack bracket according to any one of claims 2 to 4, characterized in that: The support platform comprises: A first crossbeam, fixedly connected to the mounting portions of the two cantilever beams respectively; A second cross beam, fixedly connected to the supporting parts of the two cantilever beams respectively; A plurality of tension beams, used to provide a support surface for supporting the battery pack, wherein the plurality of tension beams are arranged at intervals along the first direction; Wherein, the first end of the tension beam is fixedly connected to the first cross beam, and the second end of the tension beam is fixedly connected to the second cross beam.

6. The battery pack bracket according to claim 5, characterized in that: The first crossbeam comprises: A load-bearing pipe connected between the mounting portions of the two cantilever beams; The connecting member comprises a first connecting portion connected to the load-bearing pipe and a second connecting portion connected to the tension beam.

7. The battery pack bracket according to claim 6, characterized in that: The connecting piece also includes: A first transfer portion, connected between the first connection portion and the second connection portion; Wherein, two ends of the first adapter portion are also respectively connected to the mounting portions of the two cantilever beams.

8. The battery pack bracket according to claim 5, characterized in that: The second crossbeam comprises: A reinforcing pipe connected between the supporting parts of the two cantilever beams; The fixing member comprises a first fixing portion connected to the reinforcing pipe member and a second fixing portion connected to the tension beam.

9. The battery pack bracket according to claim 8, characterized in that: The fixing member also includes: a second adapter portion, connected between the first fixing portion and the second fixing portion; Wherein, the support portion is formed with a boss, and at least a portion of the second transition portion overlaps the boss.

10. The battery pack bracket according to claim 5, characterized in that: The battery pack bracket also includes: A flexible member, used for buffering between the support platform and the battery pack; Wherein, the flexible member is arranged on the supporting surface of the tension beam.

11. A bracket assembly, characterized in that: comprising a plurality of battery pack brackets according to any one of claims 1 to 10; Wherein, a plurality of the battery pack brackets are stacked along the second direction.

12. The bracket assembly according to claim 11, characterized in that: The bracket assembly also includes: A first support beam extending along the second direction, wherein the plurality of battery pack brackets are respectively connected to the first support beam through a connecting structure; A second support beam, supported between two adjacent battery pack brackets; Wherein, the second support beam and the first support beam are spaced apart in the third direction.

13. The bracket assembly according to claim 12, characterized in that: The cantilever beam comprises: A mounting portion, provided with the connecting structure, and the mounting portion is fixedly connected to the first side of the supporting platform; A support portion, fixedly connected to the second side of the support platform; A transition portion connected between the mounting portion and the supporting portion; Wherein, the second supporting beam is connected between supporting portions of two adjacent cantilever beams in the second direction.

14. The bracket assembly according to claim 12, characterized in that: The connection structure is configured as a first connection hole, and the first support beam has a second connection hole matched with the first connection hole; The bracket assembly also includes: A fastening bolt is passed through the first connection hole and the second connection hole to fix the battery pack bracket and the first support beam.

15. A vehicle, characterized in that: It comprises a vehicle frame and a bracket assembly as claimed in any one of claims 11 to 14; wherein the bracket assembly is mounted to the vehicle frame.

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