A battery pack front panel support structure

Abstract

The utility model relates to a battery pack technical field, concretely is a kind of battery pack front panel support structure.A kind of battery pack front panel support structure is installed in the side of battery pack, and it includes: front panel support, front panel support is detachably installed in battery pack, and sealing between front panel support and the inside of battery pack;Access hole, is set on front panel support;Maintenance panel, detachably installed on front panel support, maintenance panel can seal the access hole and block, by installing various components on front panel support, and front panel support is detachably installed on battery pack, on the one hand, so that various components and front panel support can be individually set assembly area assembly, as an independent part is installed in battery pack after, on the other hand, when damage occurs inside battery pack, maintenance work can be carried out by disassembling maintenance panel on front panel support, shorten maintenance cycle, and ensure the original airtightness of battery pack.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, specifically a battery pack front panel support structure. Background Technology

[0002] With the rapid development of new energy vehicles and energy storage systems, the maintainability of battery packs, as the core energy unit, has become a key indicator affecting the total life cycle cost of vehicles and energy storage stations. Existing technologies generally concentrate key components such as high-voltage relays, fuses, shunts, BMS slave boards, and high and low voltage connectors on a front panel made of aluminum alloy or composite materials. This front panel is then permanently fixed to a cold plate or housing by friction stir welding, structural adhesive, and dozens of bolts, forming a three-layer rigid whole of "components - front panel - cold plate / housing".

[0003] While the aforementioned structure performs well in meeting IP67 sealing, vibration, and impact resistance requirements, it reveals an inherent flaw in after-sales maintenance scenarios: "Repair means disassembly." If any component on the front panel fails, operators must first disconnect the power, depressurize, and drain the coolant. Then, they must sequentially remove the top cover, high and low voltage wiring harnesses, liquid-cooled quick-connect fittings, BMS motherboard, and thermal management system. Finally, the back of the front panel can only be exposed by separating the cold plate from the enclosure—a time-consuming process. Furthermore, repeated opening and closing not only damages the sealing interface, accelerating the aging of the sealant coating and reducing the airtightness retest pass rate, but also increases the risk of coolant leakage leading to insulation failure. Utility Model Content

[0004] The purpose of this invention is to provide a battery pack front panel support structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A front panel bracket structure for a battery pack, mounted on one side of the battery pack, includes: A front panel bracket, which is detachably installed inside the battery pack and is sealed to the inside of the battery pack; An access panel is provided on the front panel bracket; The maintenance panel is detachably mounted on the front panel bracket and can seal the access port.

[0006] The battery pack front panel bracket structure described above: a second sealing ring is provided on one side of the front panel bracket, and the second sealing ring is sealed and fitted to the inside of the battery pack.

[0007] The battery pack front panel bracket structure described above: a first sealing ring is provided on the side of the maintenance panel facing the front panel bracket, and the first sealing ring is sealed and fitted to the outside of the battery pack.

[0008] The battery pack front panel bracket structure as described above: the front panel bracket is an L-shaped structure with mounting holes at the bottom, and the mounting holes are connected to the battery pack by bolts; The bottom of the front panel bracket is provided with a bending area, which forms a two-layer superimposed structure with the bottom of the front panel bracket.

[0009] The battery pack front panel bracket structure described above has two sets of convex protrusions symmetrically arranged on the front panel bracket, and mounting brackets are provided on both sides of the inspection port.

[0010] The battery pack front panel bracket structure as described above: the L-shaped structure of the front panel bracket has an included angle of 85° to 90°, and the convex bulge is perpendicular to the bottom of the front panel bracket.

[0011] The battery pack front panel bracket structure described above: a fuse assembly, an explosion-proof valve, a communication plug-in, and a fire extinguisher are detachably mounted on the front panel bracket, and a copper busbar electrically connected to the fuse assembly is connected to it. The BMS is detachably mounted on the mounting bracket.

[0012] The battery pack front panel support structure described above: a pressure strip is provided on the outside of the battery pack, and the pressure strip surrounds the outer edge of the convex bulge.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. By mounting various components on the front panel bracket, and the front panel bracket being detachably mounted on the battery pack, on the one hand, various components and the front panel bracket can be assembled in separate assembly areas and then installed as independent parts inside the battery pack. On the other hand, when damage occurs inside the battery pack, the maintenance panel on the front panel bracket can be removed, allowing maintenance personnel to perform maintenance work without disassembling the battery pack, shortening the maintenance cycle and ensuring the original airtightness of the battery pack. 2. The first and second sealing rings ensure sufficient sealing between the front panel bracket and the battery pack, and between the maintenance panel and the front panel bracket, thereby guaranteeing the airtightness of the battery pack before and after maintenance and preventing external dust from entering the battery pack and affecting the normal operation of various components. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the battery pack front panel support structure.

[0015] Figure 2for Figure 1 Exploded view of part of the structure.

[0016] Figure 3 This is a schematic diagram of the internal structure of the battery pack in the front panel support structure of the battery pack.

[0017] Figure 4 This is a top view of the battery pack within the front panel support structure.

[0018] Figure 5 This is a schematic diagram of the front panel bracket and components in the battery pack front panel bracket structure.

[0019] Figure 6 This is an exploded view of the front panel bracket and components in the battery pack front panel bracket structure.

[0020] Figure 7 This is a schematic diagram of the front panel bracket in the battery pack front panel bracket structure.

[0021] Figure 8 This is a schematic diagram of the front panel bracket structure of the battery pack from another angle.

[0022] In the diagram: 1. Battery cell body; 101. Bottom sealing plate; 2. Front panel bracket; 201. Protrusion; 202. Rivet nut; 203. Bending area; 204. Inspection port; 205. Mounting hole; 206. Mounting bracket; 3. Sealing cover plate; 4. Copper busbar; 5. Fuse assembly; 6. Explosion-proof valve; 7. Communication plug-in; 8. Fire protection; 9. Maintenance panel; 10. First sealing ring; 11. BMS; 12. Second sealing ring; 13. Pressure strip. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figures 1-8 As an embodiment of the present utility model, the battery pack front panel bracket structure is installed on one side of the battery pack. Specifically, the battery pack includes a cell body 1, and a bottom sealing plate 101 is provided at the bottom of the cell body 1. A sealing cover plate 3 is detachably installed on the bottom sealing plate 101.

[0025] It should be noted that in this application, the detachable connection method is a connection by bolts. Of course, other methods can also be used to achieve a detachable connection, provided that the installation requirements (connection strength and connection sealing) are met.

[0026] Includes: front panel bracket 2, access port 204, and maintenance panel 9.

[0027] The front panel bracket 2 is detachably installed inside the battery pack, and the front panel bracket 2 is sealed to the inside of the battery pack. A second sealing ring 12 is provided on one side of the front panel bracket 2. The second sealing ring 12 is sealed and fitted to the inside of the battery pack. Specifically, one side of the second sealing ring 12 is sealed and fitted to the front panel bracket 2, and the other side is sealed and fitted to the sealing cover plate 3. The front panel bracket 2 has an L-shaped structure and a mounting hole 205 at the bottom. The mounting hole 205 is connected to the battery pack by bolts.

[0028] In this embodiment, before installing the sealing cover 3, the front panel bracket 2 needs to be fixed to the bottom sealing plate 101 with bolts, and then the sealing cover 3 is installed in place. After that, the connection between the sealing cover 3 and the front panel bracket 2 is achieved by the rivet nut 202 set on the front panel bracket 2. During the process of the two fitting together, the second sealing ring 12 set between the two can be squeezed, thereby filling the gap between the two and achieving a good sealing effect.

[0029] Please see Figures 7-8 The bottom of the front panel bracket 2 is provided with a bending area 203, which forms a two-layer superimposed structure with the bottom of the front panel bracket 2. This two-layer superimposed structure can improve the structural strength of the front panel bracket 2 and prevent it from deforming.

[0030] Two sets of protrusions 201 are symmetrically arranged on the front panel bracket 2, and mounting brackets 206 are arranged on both sides of the inspection port 204. Furthermore, the protrusions 201 are used to install various components, and can be screen-printed to distinguish the attributes of the components.

[0031] The L-shaped structure of the front panel bracket 2 has an included angle of 85° to 90°, which allows the front panel bracket 2 to fit better with the battery pack after installation. The protrusion 201 is perpendicular to the bottom of the front panel bracket 2.

[0032] Please see Figures 4-5 The front panel bracket 2 is detachably equipped with a fuse assembly 5, an explosion-proof valve 6, a communication plug 7, and a fire extinguisher 8. The fuse assembly 5 is connected to a copper busbar 4 that is electrically connected to it. The BMS11 is detachably mounted on the mounting bracket 206.

[0033] During assembly, the fuse assembly 5, explosion-proof valve 6, communication plug-in 7, fire protection 8, and BMS 11 can be installed onto the front panel bracket 2 first, and then the front panel bracket 2 can be installed. This allows the corresponding components to be installed onto the front panel bracket 2 first, and then the front panel bracket 2 can be installed, which improves the modularity of the device and reduces the difficulty of installation and subsequent maintenance.

[0034] Based on the above configuration, by mounting various components on the front panel bracket 2, and the front panel bracket 2 being detachably mounted on the battery pack, on the one hand, various components can be assembled in separate assembly areas with the front panel bracket 2 and then installed as an independent part inside the battery pack. On the other hand, when damage occurs inside the battery pack, the maintenance panel 9 on the front panel bracket 2 can be removed, allowing maintenance personnel to perform maintenance without disassembling the battery pack, thus shortening the maintenance cycle and ensuring the original airtightness of the battery pack.

[0035] Please see Figures 1-3 The inspection port 204 is provided on the front panel bracket 2; The maintenance panel 9 is detachably mounted on the front panel bracket 2. The maintenance panel 9 can seal the inspection port 204. A first sealing ring 10 is provided on the side of the maintenance panel 9 facing the front panel bracket 2. The first sealing ring 10 is sealed and fitted to the outside of the battery pack. Specifically, one side of the first sealing ring 10 is sealed and fitted to the front panel bracket 2, and the other side is sealed and fitted to the maintenance panel 9.

[0036] In this embodiment, when a fault occurs inside the battery pack during its use, the maintenance panel 9 can be removed to expose the inspection port 204. During the maintenance process, maintenance personnel can inspect, maintain, or even repair the inside of the battery pack through the inspection port 204. Compared with the prior art, which requires disassembling the battery pack, this greatly reduces maintenance costs and shortens the maintenance cycle to a certain extent.

[0037] Furthermore, a first sealing ring 10 is provided on the side of the maintenance panel 9 facing the front panel bracket 2, which can ensure the sealing between the maintenance panel 9 and the front panel bracket 2.

[0038] Based on the above settings, the first sealing ring 10 and the second sealing ring 12 can provide sufficient sealing between the front panel bracket 2 and the battery pack, and between the maintenance panel 9 and the front panel bracket 2, thereby ensuring the sealing of the battery pack before and after maintenance, preventing external dust from entering the battery pack and affecting the normal operation of various components, and ensuring IP67 protection level when the screw torque is appropriate.

[0039] A pressure strip 13 is provided on the outside of the battery pack, and the pressure strip 13 surrounds the outer edge of the protrusion 201.

[0040] In this embodiment, after the battery pack and front panel bracket 2 are installed, the protrusion 201 on the front panel bracket 2 protrudes beyond the battery pack sealing cover 3. The pressure strip 13 ensures the structural strength of the sealing cover 3 on the outside of the protrusion 201. Furthermore, the pressure strip 13 further compresses the second sealing ring 12 when the rivet nut 202 is tightened, thereby improving the sealing performance.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A battery pack front panel bracket structure, mounted on one side of the battery pack; Its features are, include: Front panel bracket (2), which is detachably installed inside the battery pack and is sealed to the inside of the battery pack; An inspection port (204) is provided on the front panel bracket (2); The maintenance panel (9) is detachably mounted on the front panel bracket (2) and can seal the inspection port (204).

2. The battery pack front panel bracket structure according to claim 1, characterized in that, A second sealing ring (12) is provided on one side of the front panel bracket (2), and the second sealing ring (12) is sealed and fitted to the inside of the battery pack.

3. The battery pack front panel bracket structure according to claim 1, characterized in that, The maintenance panel (9) is provided with a first sealing ring (10) on the side facing the front panel bracket (2), and the first sealing ring (10) is sealed and fitted to the outside of the battery pack.

4. The battery pack front panel bracket structure according to claim 1, characterized in that, The front panel bracket (2) has an L-shaped structure and a mounting hole (205) at the bottom. The mounting hole (205) is connected to the battery pack by bolts. The bottom of the front panel bracket (2) is provided with a bending area (203), and the bending area (203) and the bottom of the front panel bracket (2) form a two-layer superimposed structure.

5. The battery pack front panel bracket structure according to claim 1, characterized in that, Two sets of protrusions (201) are symmetrically arranged on the front panel bracket (2), and mounting brackets (206) are arranged on both sides of the inspection port (204).

6. The battery pack front panel bracket structure according to claim 5, characterized in that, The L-shaped structure of the front panel bracket (2) has an included angle of 85° to 90°, and the convex bulge (201) is perpendicular to the bottom of the front panel bracket (2).

7. A battery pack front panel bracket structure according to claim 5, characterized in that, The front panel bracket (2) is detachably mounted with a fuse assembly (5), an explosion-proof valve (6), a communication plug (7), and a fire protection device (8). The fuse assembly (5) is connected to a copper busbar (4) that is electrically connected to it. The BMS (11) is detachably mounted on the mounting bracket (206).

8. The battery pack front panel bracket structure according to claim 5, characterized in that, A pressure strip (13) is provided on the outside of the battery pack, and the pressure strip (13) surrounds the outer edge of the convex bulge (201).

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