Hanging bracket and battery pack

Abstract

The utility model relates to the technical field of battery packs, and provides a mounting bracket and a battery pack, the mounting bracket comprises a first plate and a second plate, the first plate is provided with a body and two side plates which are connected with the body and are oppositely arranged; one end of the second plate block is connected with one end of the body, and the two side edges of the second plate block are each connected with one side plate; the second plate block is of a step-shaped structure. The mounting support is composed of the first plate and the second plate and has the advantages of being simple in structure and easy to form, and the application cost can be reduced; meanwhile, the second plate block is arranged to be of a step-shaped structure, so that the connecting area between the second plate block and the first plate block can be increased, the overall structural strength is improved, the deformation quantity is reduced, and the load capacity is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, and in particular to a mounting bracket and a battery pack. Background Technology

[0002] A battery pack is a specialized component in electric vehicles used to house the battery. It is typically installed at the bottom of the vehicle and fixed to the vehicle frame via a mounting bracket. Usually, the battery pack is installed with bolts to allow for quick assembly and disassembly.

[0003] A utility model patent with authorization announcement number CN207381450U discloses a battery pack and its housing. The housing includes a load-bearing frame with a battery mounting part for mounting batteries; a sealing plate made of a different material from the load-bearing frame and connected to the load-bearing frame; and a mounting bracket connected to the load-bearing frame for mounting the battery pack.

[0004] As described in the above technical solution, the mounting bracket consists of a mounting part, a connecting part, and a supporting part. The mounting part is further divided into several sections and mounting holes, making the overall structure relatively complex and inconvenient to form, thus increasing production costs. The bracket made of metal sheet has the advantages of simple forming and low application cost, but its strength is relatively low. Therefore, improving the strength of the metal sheet bracket is a feasible way to solve the existing problems. Utility Model Content

[0005] In view of this, the present invention proposes a mounting bracket and battery pack with high structural strength and low application cost to solve the problems of existing mounting brackets having complex structures and high costs, or whose strength does not meet application requirements.

[0006] The technical solution of this utility model is implemented as follows:

[0007] On the one hand, this utility model provides a mounting bracket, including a first plate and a second plate, wherein,

[0008] The first section has a main body, and two side plates that are connected to and opposite to the main body;

[0009] One end of the second plate is connected to one end of the main body, and each side of the second plate is connected to a side plate.

[0010] The second section is designed with a stepped structure.

[0011] Based on the above technical solutions, preferably, the other end of the main body and the second plate, as well as the adjacent end of the side plate, are folded to form a connecting plate.

[0012] Based on the above technical solutions, preferably, the second plate consists of a first vertical segment, a parallel segment, a second vertical segment, and an inclined segment from one end connected to the first plate to the other end.

[0013] The side plate is provided with a beveled edge corresponding to the inclined section.

[0014] Based on the above technical solutions, preferably, the first vertical segment, the parallel segment, and the inclined segment are all welded to the first plate.

[0015] Based on the above technical solutions, preferably, the length of the parallel segment is less than the length of the inclined segment;

[0016] The length of the parallel segment corresponding to the body is less than the length of the inclined segment corresponding to the body.

[0017] Based on the above technical solutions, preferably, the length of the first vertical segment is less than the length of the second vertical segment.

[0018] Based on the above technical solutions, preferably, the first and second panels are integrally formed by sheet metal or stamping.

[0019] Based on the above technical solutions, preferably, it also includes a sleeve, which penetrates the first plate and abuts against the inner wall of the second plate;

[0020] The second plate corresponds to the inner hole opening of the sleeve.

[0021] Based on the above technical solutions, preferably, the sleeve and the first plate are fixed by welding.

[0022] On the other hand, the present invention provides a battery pack including the aforementioned mounting bracket.

[0023] The mounting bracket and battery pack of this utility model have the following advantages over the prior art:

[0024] (1) The mounting bracket is composed of two parts: the first plate and the second plate. It has the advantages of simple structure and easy molding, which can reduce application costs. At the same time, the second plate is set as a stepped structure, which can increase the connection area with the first plate, thereby improving the overall structural strength and reducing deformation to ensure load capacity.

[0025] (2) The second section is composed of the first vertical section, the parallel section, the second vertical section and the inclined section, which can increase the slope of the overall structure of the mounting bracket and help improve the overall strength.

[0026] (3) The second plate and the first plate are welded together and connected to the battery pack through the connecting plate to form a sealed structure, which can further ensure the overall structural strength. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0028] Figure 1 This is a perspective view of the mounting bracket and battery pack of this utility model;

[0029] Figure 2 This is a front view of the mounting bracket and battery pack of this utility model;

[0030] Figure 3 This is an exploded perspective view of the mounting bracket and battery pack of this utility model;

[0031] Figure 4 This is an exploded front view of the mounting bracket and battery pack of this utility model;

[0032] Figure 5 This is a perspective view of the bottom structure of the mounting bracket and battery pack of this utility model;

[0033] Figure 6 This is a perspective view of the rear structure of the mounting bracket and battery pack of this utility model.

[0034] Figure 7 This is a perspective view of the existing bracket for the mounting bracket and battery pack of this utility model;

[0035] Figure 8 Comparison of stiffness before and after optimization of the mounting bracket;

[0036] Figure 9 Comparison of deformation during mounting tests before and after bracket optimization;

[0037] Figure 10 Comparison of structural strength before and after optimization of the mounting bracket;

[0038] In the diagram: 1. First plate; 11. Body; 12. Side plate; 2. Second plate; 21. First vertical section; 22. Parallel section; 23. Second vertical section; 24. Inclined section; 3. Connecting plate; 4. Sleeve. Detailed Implementation

[0039] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0040] like Figures 1-7 As shown, the mounting bracket of this utility model includes a first plate 1, a second plate 2, a connecting plate 3, and a sleeve 4;

[0041] The battery pack of this utility model includes the aforementioned mounting bracket.

[0042] like Figures 1-6 As shown, the first plate 1 has a body 11 and two side plates 12 connected to and opposite to the body 11; one end of the second plate 2 is connected to one end of the body 11, and each side of the second plate 2 is connected to a side plate 12; the second plate 2 is configured as a stepped structure.

[0043] As described above, the mounting bracket is composed of two parts: the first plate 1 and the second plate 2. It has the advantages of simple structure and easy molding, and can reduce application costs.

[0044] When assembling the components, the two side plates 12 of the main body 11 are welded and fixed to the second plate 2.

[0045] Meanwhile, the second plate 2 is designed with a stepped structure, which increases the connection area with the first plate 1, thereby improving the overall structural strength and reducing deformation to ensure load capacity.

[0046] like Figure 1 and Figure 2 As shown, the other end of the main body 11 and the second plate 2, as well as the adjacent end of the side plate 12, are folded to form a connecting plate 3;

[0047] As described above, the main body 11, side plate 12 and second plate 2 are all provided with connecting plates 3. In this way, during assembly, the connecting plates 3 are connected to the battery pack housing to form a sealed structure, thereby further ensuring the overall structural strength.

[0048] like Figure 4 As shown, the second plate 2 consists of a first vertical segment 21, a parallel segment 22, a second vertical segment 23, and an inclined segment 24 from one end connected to the first plate 1 to the other end; the side plate 12 is provided with a hypotenuse corresponding to the inclined segment 24.

[0049] As described above, the end of the second plate 2 that is connected to the first plate 1 is far away from the battery pack during assembly. As it gets closer to the battery pack, it is divided into four parts in sequence: the first vertical section 21, the parallel section 22, the second vertical section 23, and the inclined section 24. The inclined section 24 is connected to a connecting plate 3, thereby being welded to the battery pack.

[0050] Specifically, the connecting plate 3 here can be integrally formed with the second plate 2;

[0051] The design of the second plate 2 in this structure allows the second plate 2 to have more area to connect with the first plate 1, thereby increasing the slope of the overall structure of the mounting bracket and improving the overall strength.

[0052] The side plate 12 is provided with a bevel to correspond to the inclined section 24, which can reduce the overall volume of the mounting bracket and is conducive to lightweight development.

[0053] Furthermore, during the connection process, the first vertical segment 21, the parallel segment 22, and the inclined segment 24 of the second plate are welded to the first plate 1.

[0054] like Figure 4 As shown, the length of parallel segment 22 is less than the length of inclined segment 24; the length of parallel segment 22 corresponding to body 11 is less than the length of inclined segment 24 corresponding to body 11.

[0055] As described above, when arranging the structure of the second plate 2, the inclined section 24 is longer than the parallel section 22, and the length of the corresponding body 11 is also greater than that of the parallel section 22. This ensures that the first plate 1 and the second plate 2 in this mounting bracket have good connection structural strength, thereby improving its load capacity.

[0056] like Figure 4 As shown, the length of the first vertical segment 21 is less than the length of the second vertical segment 23;

[0057] As described above, since the side plate 12 is similar to a trapezoidal shape, the length of the first vertical segment 21 is set to be shorter so that the second plate 2 can be hidden inside the first plate 1, while the second vertical segment 23 is longer to ensure the rigidity of the middle part of the second plate 2.

[0058] Specifically, the first section 1 and the second section 2 are integrally formed by sheet metal or stamping to ensure ease of forming.

[0059] like Figures 1-6 As shown, the sleeve 4 penetrates the first plate 1 and abuts against the inner wall of the second plate 2; the second plate 2 has an opening in the inner hole of the sleeve 4.

[0060] As described above, the sleeve 4 is used to install bolts to connect the vehicle body. When the sleeve 4 is installed, it is welded to the first plate 1.

[0061] Meanwhile, the bottom end of the sleeve 4 abuts against the inner side of the second plate 2 to ensure structural stability.

[0062] Specifically, the sleeve 4 is configured as a stepped sleeve, with the end face of the large-diameter section abutting against the outer surface of the first plate 1 to improve the stability of the structure.

[0063] like Figures 8-10 As shown, these are performance test diagrams of the mounting bracket. The right diagram is the test diagram of the mounting bracket of this application, and the left diagram is the test diagram of a conventional mounting bracket. The structure of this mounting bracket is as follows: Figure 7 As shown, the first and second plates of the mounting bracket have different structures from those of this application. In addition, it also has a ring-shaped third plate on the top surface, which results in a complex molding structure and high application cost.

[0064] like Figure 8 As shown, the existing mounting bracket stiffness is 159 N / mm, while the mounting bracket structure stiffness of this application is 1205 N / mm, which is 658% higher than the original structure.

[0065] like Figure 9 As shown, tests revealed that under hoisting conditions, the existing mounting bracket's deformation relative to the box body was 12.06 mm, which is relatively large. In contrast, the deformation of the mounting bracket in this application relative to the box body is 1.25 mm, which is 90% less than the original structure.

[0066] like Figure 10 As shown, under hoisting conditions, the maximum stress of the existing mounting bracket is 227.6 MPa, while the maximum stress of the mounting bracket in this application is 115.06 MPa, which increases the strength by 50% compared to the original structure.

[0067] Specific implementation steps:

[0068] First, the first plate 1, the second plate 2, and the connecting plate 3 are formed by stamping sheet metal. The first plate 1 and the second plate 2 are then welded and fixed. Subsequently, the sleeve 4 is installed into the reserved hole of the first plate 1 and welded and fixed.

[0069] In application, the connecting plate 3 is welded and fixed to the box beam of the battery pack, and the sleeve 4 is connected to the vehicle frame by bolts.

[0070] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mounting bracket, characterized in that: Includes the first section (1) and the second section (2), wherein, The first plate (1) has a body (11) and two side plates (12) connected to and disposed opposite to the body (11); One end of the second plate (2) is connected to one end of the body (11), and each of the two sides of the second plate (2) is connected to a side plate (12); The second section (2) is configured as a stepped structure.

2. The mounting bracket as described in claim 1, characterized in that: The other end of the main body (11) and the second plate (2), as well as the adjacent end of the side plate (12), are folded to form a connecting plate (3).

3. The mounting bracket as described in claim 1, characterized in that: The second plate (2) consists of a first vertical segment (21), a parallel segment (22), a second vertical segment (23), and an inclined segment (24) from one end connected to the first plate (1) to the other end. The side plate (12) is provided with a beveled edge corresponding to the inclined section (24).

4. The mounting bracket as described in claim 3, characterized in that: The first vertical segment (21), the parallel segment (22) and the inclined segment (24) are all welded to the first plate (1).

5. The mounting bracket as described in claim 3, characterized in that: The length of the parallel segment (22) is less than the length of the inclined segment (24); The length of the parallel segment (22) corresponding to the body (11) is less than the length of the inclined segment (24) corresponding to the body (11).

6. The mounting bracket as described in claim 3, characterized in that: The length of the first vertical segment (21) is less than the length of the second vertical segment (23).

7. The mounting bracket as described in any one of claims 1 to 6, characterized in that: The first plate (1) and the second plate (2) are integrally formed by sheet metal or stamping.

8. The mounting bracket as described in any one of claims 1 to 6, characterized in that: It also includes a sleeve (4) that penetrates the first plate (1) and abuts against the inner wall of the second plate (2); The second plate (2) corresponds to the inner hole opening of the sleeve (4).

9. The mounting bracket as described in claim 8, characterized in that: The sleeve (4) is fixed to the first plate (1) by welding.

10. A battery pack, characterized in that: Includes the mounting bracket as described in any one of claims 1 to 9.

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