Battery pack bracket, bracket assembly and vehicle

Abstract

The utility model provides a battery pack bracket, a bracket assembly and a vehicle, and the battery pack bracket comprises a supporting platform used for installing 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 utility model can give consideration to both structural strength and installation convenience.

Description

Technical Field

[0001] This utility model relates to the field of bracket technology, specifically to a battery pack bracket, bracket assembly, and vehicle. Background Technology

[0002] In related technologies, the battery pack bracket is a cage-like structure, which uses multiple rectangular tubes welded together to achieve the required structural strength. However, due to the complexity of its cage-like structure, the operating space during battery pack installation is limited, resulting in low installation efficiency. Related technologies do not provide a solution that balances structural strength and installation convenience. Utility Model Content

[0003] The present invention provides 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, embodiments of the present invention provide a battery pack holder, comprising:

[0005] Support platform for installing battery packs;

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

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

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

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

[0010] The mounting part is provided with the connection structure, and the mounting part is fixedly connected to the first side of the support platform;

[0011] The support part is fixedly connected to the second side of the support platform;

[0012] A transition section connects the mounting section and the support section;

[0013] The mounting portion is composed of at least two of the side plates, the support portion and the transition portion are each composed of at least the base plate and two of the side plates, 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 this application, the cantilever beam further includes:

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

[0016] The reinforcing rib is fixedly connected to the base plate.

[0017] Optionally, in some embodiments of this application, the reinforcing rib is disposed between the two side plates, and at least a portion of the connecting body passes through the reinforcing rib.

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

[0019] The first crossbeam is fixedly connected to the mounting parts of the two cantilever beams respectively;

[0020] The second crossbeam is fixedly connected to the support parts of the two cantilever beams respectively;

[0021] Multiple tie beams are provided to provide a support surface for supporting the battery pack, and the multiple tie beams are spaced apart along the first direction;

[0022] The first end of the tie beam is fixedly connected to the first crossbeam, and the second end of the tie beam is fixedly connected to the second crossbeam.

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

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

[0025] The connector has a first connecting part that connects to the load-bearing pipe and a second connecting part that connects to the tie beam.

[0026] Optionally, in some embodiments of this application, the connector further includes:

[0027] A first adapter is connected between the first connecting part and the second connecting part;

[0028] The two ends of the first adapter are respectively connected to the mounting parts of the two cantilever beams.

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

[0030] A reinforcing pipe fitting is connected between the support portions of the two cantilever beams;

[0031] The fastener has a first fixing part that connects to the reinforcing tube and a second fixing part that connects to the tie beam.

[0032] Optionally, in some embodiments of this application, the fastener further includes:

[0033] The second adapter is connected between the first fixing part and the second fixing part;

[0034] The support portion has a boss, and at least a portion of the second adapter portion overlaps the boss.

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

[0036] A flexible component is used to buffer the space between the support platform and the battery pack;

[0037] The flexible component is disposed on the support surface of the tie beam.

[0038] Secondly, embodiments of the present invention provide a bracket assembly including a plurality of battery pack brackets as described above;

[0039] The battery pack holders are stacked along the second direction.

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

[0041] A first support beam extends along a second direction, and multiple battery pack brackets are respectively connected to the first support beam via a connecting structure;

[0042] The second support beam is supported between two adjacent battery pack brackets;

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

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

[0045] The mounting part is provided with the connection structure, and the mounting part is fixedly connected to the first side of the support platform;

[0046] The support part is fixedly connected to the second side of the support platform;

[0047] A transition section connects the mounting section and the support section;

[0048] The second support beam connects the support portions of two adjacent cantilever beams in the second direction.

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

[0050] The bracket assembly also includes:

[0051] Fastening bolts are inserted through the first and second connecting holes to secure the battery pack bracket and the first support beam.

[0052] Thirdly, embodiments of the present invention provide a vehicle including a frame and a bracket assembly as described above; wherein the bracket assembly is mounted to the frame.

[0053] The beneficial effects of the embodiments of this utility model are as follows:

[0054] In this embodiment of the invention, the main body of the battery pack bracket is formed by a support platform and two cantilever beams. By gradually reducing the width of at least a portion of the cantilever beams in the second direction away from the connecting structure, the operable space during battery pack installation is increased. Based on the cantilever beam width setting to facilitate battery pack installation, the cantilever beam is composed of at least a base plate and two side plates, with multiple connectors between the two side plates. This cantilever beam structure improves the structural strength of the cantilever beam and ensures the stability of the battery pack. Therefore, the battery pack bracket provided by this invention balances structural strength and installation convenience. Attached Figure Description

[0055] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0056] Figure 1 This is a perspective view of the battery pack holder provided in an embodiment of the present invention;

[0057] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle;

[0058] Figure 3 This is a top view of the battery pack holder provided in an embodiment of this utility model;

[0059] Figure 4 yes Figure 3 Enlarged schematic diagram of part B in the middle;

[0060] Figure 5 This is a side view of the battery pack holder provided in an embodiment of the present invention;

[0061] Figure 6 yes Figure 5 An enlarged schematic diagram of section C;

[0062] Figure 7 This is a three-dimensional schematic diagram of the cantilever beam in the battery pack bracket provided in an embodiment of this utility model;

[0063] Figure 8 This is a top view of the cantilever beam in the battery pack bracket provided in an embodiment of this utility model;

[0064] Figure 9 This is a schematic diagram of the first assembly process of the bracket assembly provided in an embodiment of the present utility model;

[0065] Figure 10 This is a schematic diagram of the second assembly process of the bracket assembly provided in an embodiment of the present utility model;

[0066] Figure 11 This is a schematic diagram of the third assembly process of the bracket assembly provided in an embodiment of the present utility model;

[0067] Figure 12 yes Figure 11 An enlarged schematic diagram of section D in the middle;

[0068] Figure 13 This is a schematic diagram of the fourth assembly process of the bracket assembly provided in an embodiment of the present utility model;

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

[0070] Figure label:

[0071] 100. Battery pack holder;

[0072] 110. Cantilever beam; 110a. Base plate; 110b. Side plate; 110c. Connector; 110d. Reinforcing rib;

[0073] 111. Mounting part; 111a. First connecting hole; 112. Support part; 112a. Boss; 113. Transition part;

[0074] 100a, Support Platform;

[0075] 120. Crossbeam; 121. Load-bearing pipe fitting; 122. Connector; 122a. First connecting part; 122b. Second connecting part; 122c. First transition part;

[0076] 130. Second crossbeam; 131. Reinforcing fitting; 132. Fastener; 132a. First fixing part; 132b. Second fixing part; 132c. Second transition part;

[0077] 140. Tie beam; 141. Support surface;

[0078] 150. Flexible components; 200. Battery pack;

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

[0080] 1. Vehicle; 20. Chassis. Detailed Implementation

[0081] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model.

[0082] In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in its actual use or operating state, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. Furthermore, in the description of this application, the term "comprising" means "including but not limited to". The terms first, second, third, etc., are used merely as illustrative purposes and do not impose numerical requirements or establish a numerical order.

[0083] In this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing 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 This application provides a battery pack bracket 100, including: a support platform 100a 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 provided, and the two cantilever beams 110 are spaced apart on both sides of the support platform 100a along the first direction. The support platform 100a is fixedly connected to the two cantilever beams 110 respectively, and the cantilever beams 110 support the support platform 100a, and the structure is simplified.

[0086] The first direction mentioned here, indicating left and right, is only for the convenience of introducing specific embodiments of this application. There is no absolute correspondence between the first direction and the left and right directions. Similarly, there is no absolute correspondence between the second direction and the up and down directions, and between the third direction and the front and back directions. Furthermore, the first direction, second direction, and third direction of this application are only used to express relative positional relationships; they only indicate approximate locations, not absolute geometric relationships.

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

[0088] It is understandable that the connecting structure can be connected to the external structure by means of bolts, welding, etc.

[0089] The width of at least a portion of the cantilever beam 110 in the second direction may decrease continuously, for example, the slope of the top surface of the cantilever beam 110 is uniform; or the width of at least a portion of the cantilever beam 110 in the second direction may vary in multiple segments, 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 base plate 110a and two side plates 110b. The base plate 110a extends along a third direction, and the two side plates 110b are respectively fixedly connected to the two sides of the base plate 110a in the first direction. A plurality of connecting bodies 110c are connected between the two side plates 110b, so that the two side plates 110b are kept in a predetermined state.

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

[0092] In this embodiment of the invention, the main body of the battery pack bracket 100 is formed by a support platform 100a and two cantilever beams 110. The width of at least a portion of the cantilever beams 110 gradually decreases in the second direction away from the connecting structure, increasing the operable space for battery pack 200 installation. Based on the width of the cantilever beams 110 designed to facilitate battery pack 200 installation, each cantilever beam 110 is composed of at least a base plate 110a and two side plates 110b, with multiple connectors 110c connecting the two side plates 110b. This cantilever beam 110 structure improves the structural strength of the cantilever beams 110 and ensures the stability of the battery pack 200. Therefore, the battery pack bracket 100 provided by this invention balances structural strength and installation convenience.

[0093] In some specific embodiments, the side plate 110b and the bottom plate 110a can be manufactured by bending or welding of sheet metal. The side plate 110b and the bottom plate 110a are made of high-strength steel plate (e.g., 780DP), and their thickness ranges from 5.0 to 10.0 mm.

[0094] In some specific embodiments, the connector 110c may adopt a tubular or cylindrical structure.

[0095] In some embodiments of this application, reference is made to Figure 1 and Figures 5 to 8 The cantilever beam 110 includes: a mounting part 111, a support part 112, and a transition part 113.

[0096] The mounting part 111 is provided with the above-mentioned connection structure, and the mounting part 111 is fixedly connected to the first side of the support platform 100a; the mounting part 111 is composed of at least two side plates 110b, that is, a space is formed between the two side plates 110b corresponding to the mounting part 111, which facilitates the connection between the mounting part 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, both the support portion 112 and the transition portion 113 are composed of at least a base plate 110a and two side plates 110b, and the width of the transition portion 113 in the second direction gradually decreases 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 unobstructed, which facilitates the insertion and fixation of the battery pack 200.

[0098] In some specific embodiments, the connector 110c can be disposed between the two side plates 110b corresponding to the transition portion 113. Of course, provided that the size of the support portion 112 is sufficient, the connector 110c can also be disposed in the support portion 112.

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

[0100] By adopting this solution and setting the reinforcing rib 110d, the strength loss due to the reduction in the width of the cantilever beam 110 in the second direction can be compensated, thereby improving the stability of the battery pack bracket 100.

[0101] In some specific embodiments, since the width of the transition portion 113 decreases in the second direction as it gets closer to the support portion 112, a reinforcing rib 110d is provided in the portion of the transition portion 113 closest to the support portion 112. Furthermore, since the support portion 112 has the smallest width in the second direction, the entire transition portion 113 is provided with reinforcing ribs 110d to help improve the structural strength of the support portion 112.

[0102] In some embodiments of this 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 is understood that the reinforcing rib 110d is parallel to the side plates 110b on both sides, so that the connecting body 110c is perpendicularly inserted through the reinforcing rib 110d.

[0104] By adopting this scheme, the structural strength and stability of the cantilever beam 110 are further improved through the cooperation of the connector 110c and the stiffener 110d.

[0105] In some embodiments of this application, reference is made to Figures 1 to 5 The support platform 100a includes: a first crossbeam 120, a second crossbeam 130120, and a tie beam 140.

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

[0107] Multiple tie beams 140 are provided to provide a support surface 141 for supporting the battery pack 200. The multiple tie beams 140 are spaced apart along a first direction. The first end of the tie beam 140 is fixedly connected to the first crossbeam 120, and the second end of the tie beam 140 is fixedly connected to the second crossbeam 130120.

[0108] By adopting this design, the mounting portions 111 of the two cantilever beams 110 are connected by the first crossbeam 120, which improves the strength of the connection between the mounting portions 111 and the external structure. The second crossbeam 130120 not only connects the support portions 112 of the two cantilever beams 110 to improve the stability of the support portions 112, but also effectively prevents the battery pack 200 from being bumped or squeezed.

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

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

[0111] Based on the above considerations, by setting up a connector 122, which has a first connecting part 122a and a second connecting part 122b that are adapted and positioned to fit the load-bearing pipe 121 and the tie beam 140 respectively, the assembly efficiency of the tie beam 140 and the first crossbeam 120 is improved.

[0112] In some embodiments of this application, reference is made to Figures 1 to 5 The connector 122 further includes a first adapter portion 122c. The first adapter portion 122c connects between the first connecting portion 122a and the second connecting portion 122b. By using the second adapter portion 122c, the second connecting portion 122b and the first connecting portion 122a can be at different heights, thereby causing the tie beam 140 to sink relative to the first crossbeam 120, which can reduce the risk of the battery pack 200 being impacted on the side of the first crossbeam 120.

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

[0114] In some specific implementation methods, refer to Figures 1 to 5 The first adapter 122c is bent relative to the first connecting part 122a and the second connecting part 122b respectively.

[0115] In some embodiments of this application, reference is made to Figures 1 to 5 The second crossbeam 130120 includes: a reinforcing pipe fitting 131 and a fastener 132.

[0116] The reinforcing pipe 131 is connected between the support portions 112 of the two cantilever beams 110; the fastener 132 has a first fastening portion 132a connected to the reinforcing pipe 131 and a second fastening portion 132b connected to the tie beam 140.

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

[0118] Based on the above considerations, by setting a fastener 132, which has a first fixing part 132a and a second fixing part 132b that are adapted and positioned to fit the reinforcing pipe 131 and the tie beam 140 respectively, the assembly efficiency of the tie beam 140 and the second crossbeam 130120 is improved.

[0119] In some embodiments of this application, reference is made to Figures 1 to 5 The fixing member 132 further includes a second adapter 132c. The second adapter 132c connects the first fixing part 132a and the second fixing part 132b. By using the second adapter 132c, the second fixing part 132b and the first fixing part 132a can be at different heights, thereby causing the tie beam 140 to sink relative to the second crossbeam 130120, which can reduce the risk of the battery pack 200 being impacted on the side of the second crossbeam 130120.

[0120] In some embodiments of this application, reference is made to Figure 5 and Figure 6 The support portion 112 has a boss 112a, and at least a portion of the component overlaps with the boss 112a. The boss 112a enables the support portion 112 to provide support for the end of the second adapter portion 132c, thereby improving the stability of the fastener 132.

[0121] In some embodiments of this application, the ends of the second fixing part 132b and the second adapter part 132c may also be welded to the support part 112.

[0122] In some embodiments of this application, reference is made to Figure 1 and Figure 2 The battery pack bracket 100 also includes a flexible element 150. The flexible element 150 is disposed on the support surface 141 of the tie beam 140 and is used to buffer between the support platform 100a and the battery pack 200. By providing the flexible element 150, the vibrations experienced by the battery pack bracket 100 can be buffered, reducing the impact on the battery pack 200.

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

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

[0125] In some embodiments of this application, reference is made to 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 multiple battery pack brackets 100 are respectively connected to the first support beam 310 through a connecting structure; that is, the first support beam 310 connects multiple battery pack brackets 100 into a whole.

[0127] It is understandable that the first support beam 310 here serves as the aforementioned external structure.

[0128] The second support beam 320 is positioned between two adjacent battery pack brackets 100; the second support beam 320 and the first support beam 310 are spaced apart in the third direction. The second support beam 320 provides support to the battery pack brackets 100 at different positions in the third direction, thereby improving the stability of the battery pack brackets 100.

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

[0130] By adopting this scheme, the second support beam 320 provides auxiliary support to the upper support part 112, thereby connecting the support parts 112 of different layers in the second direction into a whole and improving the overall structural strength of the bracket assembly 10.

[0131] In some embodiments of this application, reference is made to Figures 10 to 12 The end of the second support beam 320 is also provided with a side wing 321, which is provided with a fixing hole 322. 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 this application, reference is made to Figure 1 , Figures 9 to 14 The connection structure is configured as a first connection hole 111a, and the first support beam 310 has a second connection hole 311 that mates with the first connection hole 111a.

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

[0134] With this design, the battery pack bracket 100 is connected to the first support beam 310 by fastening bolts 330, which facilitates the adjustment of the flatness of the support surface 141 in the battery pack bracket 100.

[0135] In some specific embodiments, each battery pack bracket 100 is pre-assembled before being connected to the first support beam 310. During installation, each battery pack 200 can be assembled with its respective battery pack bracket 100 first, and then the battery pack 200 and battery pack bracket 100 can be installed as a whole onto the first support beam 310. During installation, the battery pack bracket 100 can be finely adjusted according to the horizontal value of the battery pack 200. After reaching the designed horizontal value, the battery pack bracket 100 can be locked to the first support beam 310 using fastening bolts 330. Alternatively, one layer of battery pack bracket 100 can be installed onto the first support beam 310 first, and then the battery pack 200 can be assembled with that layer of battery pack bracket 100. Then, the battery pack bracket 100 of the next layer is installed, and so on, to achieve multi-layer assembly.

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

[0137] 1)Reference Figure 9 The first layer battery pack bracket 100 is pre-assembled and installed onto the first support beam 310;

[0138] 2)Reference Figure 10 Install the first battery pack 200 onto the first layer battery pack bracket 100;

[0139] 3)Reference Figure 11 The second-layer battery pack bracket 100 is pre-assembled and installed onto the first support beam 310 (this step mainly shows the installation of the battery pack bracket 100; the battery pack 200 is not shown).

[0140] 4)Reference Figure 13 The second battery pack 200 is installed into the second battery pack bracket 100;

[0141] 5) By analogy, the battery pack 200 with the preset number of layers can be installed.

[0142] According to a third aspect of this utility model, referring to Figure 14 The invention also provides a vehicle 1, including a frame 20 and a bracket assembly 10 as described above; wherein the bracket assembly 10 is mounted to the frame 20.

[0143] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A battery pack holder, characterized in that, include: Support platform for installing battery packs; At least two cantilever beams are spaced apart on both sides of the support platform along a first direction; The support platform is fixedly connected to the two cantilever beams respectively, and one end of each cantilever beam has a connecting structure to connect to an external structure; at least a portion of the width of the cantilever beam in the second direction gradually decreases in the direction away from the connecting structure. The cantilever beam is composed of at least a base plate and two side plates. The base plate extends along a third direction, and the two side plates are respectively fixedly connected to the two sides of the base plate in the first direction. A plurality of connecting bodies are connected between the two side plates.

2. The battery pack bracket according to claim 1, characterized in that, The cantilever beam includes: The mounting part is provided with the connection structure, and the mounting part is fixedly connected to the first side of the support platform; The support part is fixedly connected to the second side of the support platform; A transition section connects the mounting section and the support section; The mounting portion is composed of at least two of the side plates, the support portion and the transition portion are each composed of at least the base plate and two of the side plates, 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 also includes: A reinforcing rib extends from the transition portion to the supporting portion; The reinforcing rib is fixedly connected to the base plate.

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

5. The battery pack holder according to any one of claims 2 to 4, characterized in that, The support platform includes: The first crossbeam is fixedly connected to the mounting parts of the two cantilever beams respectively; The second crossbeam is fixedly connected to the support parts of the two cantilever beams respectively; Multiple tie beams are provided to provide a support surface for supporting the battery pack, and the multiple tie beams are spaced apart along the first direction; The first end of the tie beam is fixedly connected to the first crossbeam, and the second end of the tie beam is fixedly connected to the second crossbeam.

6. The battery pack bracket according to claim 5, characterized in that, The first crossbeam includes: A load-bearing pipe fitting is connected between the mounting portions of the two cantilever beams; The connector has a first connecting part that connects to the load-bearing pipe and a second connecting part that connects to the tie beam.

7. The battery pack bracket according to claim 6, characterized in that, The connector also includes: A first adapter is connected between the first connecting part and the second connecting part; The two ends of the first adapter are respectively connected to the mounting parts of the two cantilever beams.

8. The battery pack bracket according to claim 5, characterized in that, The second crossbeam includes: A reinforcing pipe fitting is connected between the support portions of the two cantilever beams; The fastener has a first fixing part that connects to the reinforcing tube and a second fixing part that connects to the tie beam.

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

10. The battery pack holder according to claim 5, characterized in that, The battery pack holder also includes: A flexible component is used to buffer the space between the support platform and the battery pack; The flexible component is disposed on the support surface of the tie beam.

11. A bracket assembly, characterized in that, Includes multiple battery pack holders as described in any one of claims 1 to 10; The battery pack holders 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 extends along a second direction, and multiple battery pack brackets are respectively connected to the first support beam via a connecting structure; The second support beam is supported between two adjacent battery pack brackets; 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 includes: The mounting part is provided with the connection structure, and the mounting part is fixedly connected to the first side of the support platform; The support part is fixedly connected to the second side of the support platform; A transition section connects the mounting section and the support section; The second support beam connects the support 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 that mates with the first connection hole; The bracket assembly also includes: Fastening bolts are inserted through the first and second connecting holes to secure the battery pack bracket and the first support beam.

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

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