Mount bracket and battery pack using same

Abstract

A mount bracket and a battery pack using same. The mount bracket comprises a first mount (1) and a second mount (2), wherein the first mount (1) has a supporting portion (11) and a coupling portion (12), the supporting portion (11) being arranged facing a battery pack case (4), and the supporting portion (11) being configured to be connected to the bottom of the battery pack case (4); the second mount (2) has an abutting portion (21) and a mounting portion (22), the abutting portion (21) beings arranged facing the battery pack case (4), and the abutting portion (21) being configured to be connected to a side wall of the battery pack case (4); and the coupling portion (12) is connected to the mounting portion (22) to connect the first mount (1) and the second mount (2).

Description

Mounting bracket and battery pack using the same

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on July 31, 2023, with application number 2023220425935. The entire contents of the above application are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of battery technology, and specifically discloses a mounting bracket and a battery pack using the same. Background Art

[0003] As fuel vehicles evolve into pure electric vehicles, hybrid vehicles are undoubtedly one of the preferred technical solutions at this stage.

[0004] At present, most battery packs are configured as profile boxes, and the extruded aluminum profiles used have the advantages of being light and thin and having strong corrosion resistance. Technical issues

[0005] Aluminum profile enclosures are expensive and structurally weak, requiring space to be created for cavity reinforcement. Furthermore, existing production machinery generates debris that easily accumulates in the cavity, making it difficult to clean and causing noise and short circuit risks. Furthermore, water easily accumulates at the junction between the battery pack enclosure and the vehicle frame, which can corrode the enclosure over time. Technical Solutions

[0006] In a first aspect, the present application provides a mounting bracket, comprising:

[0007] A first mounting member, the first mounting member having a supporting portion and an attachment portion, the supporting portion being arranged toward the battery pack case and being used to connect to the bottom of the battery pack case;

[0008] A second mounting member, the second mounting member having an abutting portion and a mounting portion, the abutting portion being arranged toward the battery pack case and being used to connect with a side wall of the battery pack case;

[0009] The attachment portion is connected to the installation portion to connect the first mounting component and the second mounting component.

[0010] In a second aspect, the present application provides a battery pack, comprising:

[0011] Box;

[0012] As mentioned above, at least two groups of mounting brackets are provided, and are respectively connected to the side walls and the bottom of the box on opposite sides. Beneficial effects

[0013] By setting a first mounting member and a second mounting member, the supporting portion of the first mounting member is used to connect to the bottom of the battery pack, the abutting portion of the second mounting member is used to connect to the side wall of the battery pack, and the attaching portion of the first mounting member is connected to the mounting portion of the second mounting member to connect the first mounting member and the second mounting member, so that the supporting portion and the abutting portion are both set toward the battery pack, and then the pressure applied by the battery pack is dispersed to the first mounting member and the second mounting member respectively, forming better stress transfer, so as to avoid the pressure applied by the battery pack being completely concentrated on the entire mounting bracket, reducing the stress fatigue of the mounting bracket, and extending the service life of the mounting bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG1 is a perspective view of an embodiment of a mounting bracket of the present application;

[0015] FIG2 is a disassembled diagram of an embodiment of a mounting bracket of the present application;

[0016] FIG3 is a three-dimensional diagram of a battery pack embodiment of the present application.

[0017] The meanings of the reference numerals are as follows:

[0018] First mounting part 1, first recess 10, first flange 101, supporting part 11, mounting part 12, mounting hole 121, first groove 122, leakage hole 13, edging 14, second mounting part 2, second recess 20, second flange 201, abutting part 21, mounting part 22, mounting hole 221, second groove 222, connecting part 3, connecting hole 31, box body 4, reinforcing beam 41. Modes for Carrying Out the Invention

[0019] Example 1

[0020] As shown in Figures 1 to 2, the present application provides an embodiment of a mounting bracket, including a first mounting component 1 and a second mounting component 2.

[0021] Among them, the first mounting member 1 has a supporting portion 11 and an attaching portion 12, the supporting portion 11 is arranged toward the battery pack case, and the supporting portion 11 is used to be connected to the bottom of the battery pack case, thereby transmitting the pressure generated at the bottom of the battery pack to the frame through the first mounting member 1; preferably, a leakage hole 13 is provided at the junction of the supporting portion 11 and the attaching portion 12; the second mounting member 2 has an abutting portion 21 and an installing portion 22, the abutting portion 21 is arranged toward the battery pack case, and the abutting portion 21 is used to be connected to the side wall of the battery pack case, thereby transmitting the pressure generated by the side wall of the battery pack to the frame through the second mounting member 2.

[0022] By dispersing the pressure applied by the battery pack to the first mounting part 1 and the second mounting part 2 respectively, thereby forming better stress transfer, the pressure applied by the battery pack is prevented from being completely concentrated on the entire mounting bracket, thereby reducing the stress fatigue of the mounting bracket and extending the service life of the mounting bracket; and by providing a leakage hole 13 at the junction of the supporting part 11 and the mounting part 12, when there is water accumulation, the accumulated water can flow along the mounting part 22 to the leakage hole 13, and then flow away from the leakage hole 13, thereby avoiding corrosion of the battery pack body caused by long-term water accumulation.

[0023] Specifically, the attachment portion 12 is connected to the installation portion 22 to connect the first mounting member 1 and the second mounting member 2, so that the supporting portion 11 and the abutting portion 21 are both arranged toward the battery pack, thereby jointly supporting the battery pack and transferring stress to achieve the effect of dispersing pressure.

[0024] In some embodiments, the attaching portion 12 is provided with a plurality of attaching holes 121, and the mounting portion 22 is provided with a plurality of mounting holes 221 corresponding to the attaching holes 121. Connectors 3 are passed through the attaching holes 121 and the mounting holes 221 to connect the attaching portion 121 with the mounting portion 22, thereby connecting the first mounting member 1 with the second mounting member 2, so that the first mounting member 1 and the second mounting member 2 form a layered arrangement, thereby forming stress transmission to the battery pack at different heights to achieve pressure dispersion.

[0025] In some embodiments, the attaching portion 12 is formed with a first groove 122 corresponding to the attaching hole 121, and the first groove 122 extends toward the supporting portion 11, thereby strengthening the strength and rigidity of the first mounting component 1, so as to better support the bottom of the battery pack and thus better transfer stress; more specifically, the mounting portion 22 is formed with a second groove 222 corresponding to the mounting hole 221, and the second groove 222 extends toward the abutting portion 21, thereby strengthening the strength and rigidity of the second mounting component 2, so as to better fix the side wall of the battery pack and thus better transfer stress; preferably, the attaching portion 12 is recessed in the direction away from the mounting portion 22 to form the first groove 122, and the mounting portion 22 is recessed in the direction away from the attaching portion 12 to form the second groove 222, and the first groove 122 and the second groove 222 are enclosed to form a residual space, which can accommodate more deformation caused by stress, thereby playing a buffering role and achieving a better stress dispersion effect.

[0026] In some embodiments, the connecting member 3 is formed with a connecting hole 31 along the arrangement direction of the first mounting member 1 and the second mounting member 2. The connecting hole 31 is used to pass through the fixing member to fix the mounting bracket to the frame, thereby transferring stress to the frame and making the battery pack firmly mounted on the frame.

[0027] In some embodiments, the first mounting component 1 has two opposite ends, one end of which is formed with a edging 14 and the other end is open. When the first mounting component 1 is installed on the vehicle frame, the end with the edging 14 is set toward the front of the vehicle, and the open end is set toward the rear of the vehicle. Therefore, during the driving of the vehicle, inertia can be used to throw away the accumulated water around the battery pack body from the open end of the first mounting component 1, and the edging 14 can be used to block the splashing water during the driving of the vehicle to avoid water accumulation again, thereby more thoroughly removing the accumulated water and preventing corrosion.

[0028] In some embodiments, the extension direction of the abutment portion 21 and the extension direction of the mounting portion 22 are arranged perpendicular to each other, so that the abutment portion 21 fits more closely with the side wall of the battery pack, making the stress transmission direction more consistent, and thus being more conducive to the stress of the side wall of the battery pack and the stress of the bottom of the battery pack being transmitted to the frame through the mounting portion 22 and the attachment portion 12.

[0029] In some embodiments, at least two attachment portions 12 are provided, a first recess 10 is formed between each attachment portion 12, and a first flange 101 is formed at the edge of the first recess 10; similarly, at least two installation portions 22 may also be provided, a second recess 20 is formed between each installation portion 22, and a second flange 201 is formed at the edge of the second recess 20; in practice, each attachment portion 12 and each installation portion 22 may be equidistantly arranged or unequally arranged according to the frame to be attached.

[0030] Through the above arrangement, the strength of the first mounting member 1 and the second mounting member 2 is improved, so that when mechanical abuse such as vibration and extrusion occurs, the pressure applied by the extrusion can be offset, thereby better protecting the battery pack body.

[0031] Example 2

[0032] Based on the same concept, as shown in FIG3 , the present application also discloses a battery pack embodiment, including a box body 4 and the mounting bracket as described above.

[0033] Among them, there are at least two groups of mounting brackets, which are respectively connected to the side walls and the bottom on opposite sides of the box body 4, so as to disperse the pressure to the first mounting part 1 and the second mounting part 2, thereby forming better stress transfer, and can drain water through the leakage hole 13 to prevent corrosion caused by long-term accumulation of water around the box body 4.

[0034] In some embodiments, a reinforcing beam 41 is provided in the box body 4, and the two ends of the reinforcing beam 41 are respectively provided toward the opposite sides of the box body 4 to enhance the strength of the opposite sides of the box body 4, thereby avoiding excessive deformation of the box body 4 and causing irreversible deformation of the box body 4 in the event of mechanical abuse such as vibration and extrusion, thereby preventing damage to the box body 4 caused by this.

[0035] Example 3

[0036] Based on the same concept, the present application also discloses an embodiment of an electric device, which uses the battery pack as described above.

Claims

1. Mounting bracket, including: A first mounting member (1), the first mounting member (1) comprising a supporting portion (11) and a mounting portion (12), the supporting portion (11) being arranged towards the battery pack case, the supporting portion (11) being used to be connected to the bottom of the battery pack case; A second mounting member (2), the second mounting member (2) comprising an abutment portion (21) and a mounting portion (22), the abutment portion (21) being arranged towards the battery pack case, the abutment portion (21) being used to be connected to a side wall of the battery pack case; Wherein, the attachment portion (12) is connected to the installation portion (22) so as to connect the first mounting component (1) with the second mounting component (2).

2. The mounting bracket according to claim 1, wherein: The attachment portion (12) is provided with a plurality of attachment holes (121), the mounting portion (22) is provided with a plurality of mounting holes (221) corresponding to the attachment holes (121), and the connecting member (3) is passed through the attachment holes (121) and the mounting holes (221) to connect the attachment portion (12) and the mounting portion (22).

3. The mounting bracket according to claim 2, wherein: The attachment portion (12) is formed with a first groove (122) corresponding to the attachment hole (121), and the first groove (122) is extended toward the supporting portion (11).

4. The mounting bracket according to claim 3, wherein: The mounting portion (22) is formed with a second groove (222) corresponding to the mounting hole (221), and the second groove (222) is extended toward the abutting portion (21).

5. The mounting bracket according to claim 4, wherein: The attachment portion (12) is recessed in a direction away from the mounting portion (22) to form the first groove (122), and the mounting portion (22) is recessed in a direction away from the attachment portion (12) to form the second groove (222), and the first groove (122) and the second groove (222) are enclosed to form a surplus space.

6. The mounting bracket according to claim 2, wherein: The connecting member (3) is formed with a connecting hole (31), and the connecting hole (31) is used to pass through a fixing member to fix the mounting bracket on the vehicle frame.

7. The mounting bracket according to any one of claims 1 to 6, wherein: A leakage hole (13) is provided at the junction of the supporting portion (11) and the attaching portion (12).

8. The mounting bracket according to any one of claims 1 to 6, wherein: At least two attachment portions (12) are provided, a first recess (10) is formed between each attachment portion (12), and a first flange (101) is formed at an edge of the first recess (10); and / or at least two installation portions (22) are provided, a second recess (20) is formed between each installation portion (22), and a second flange (201) is formed at an edge of the second recess (20).

9. Battery pack, wherein: include: Box (4); The mounting bracket according to any one of claims 1 to 8, wherein at least two groups of mounting brackets are provided, and each of the mounting brackets is respectively connected to the side walls and the bottom of the box body (4) on two opposite sides.

10. The battery pack according to claim 9, wherein a reinforcing beam (41) is arranged inside the box body (4), and two ends of the reinforcing beam (41) are respectively arranged toward two opposite side walls of the box body (4).

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