Battery with waterproof structure of metal shell

Abstract

The utility model relates to the technical field of batteries, in particular to a battery with a metal shell waterproof structure, which comprises a shell and a battery module arranged in the shell, the shell consists of a bottom shell and an upper cover, the upper cover is connected with the bottom shell through bolts, waterproof silica gel is filled in mounting holes for mounting the bolts on the upper cover and the bottom shell, and the waterproof silica gel is arranged in the battery module. Meanwhile, the waterproof silica gel is filled between the nut and the stud in the bolt, so that the waterproof effect is improved; the battery module comprises battery cell supports, multiple sets of clamping grooves are distributed in the battery cell supports in a matrix state, each set of clamping grooves is used for allowing a set of single battery cells to be inserted, the battery cell supports are arranged at the two ends of the single battery cells, and it can be guaranteed that the vehicle faces various road surface working conditions.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a battery with a waterproof metal casing structure. Background Technology

[0002] In recent years, various types of batteries have become increasingly popular in many countries, mainly used for outdoor energy storage, or for the operation of vehicles and equipment, and batteries are one of their essential components.

[0003] Most batteries sold on the market use plastic, metal, or PVC film as the external insulation for battery packs. Plastic shells and battery packs usually have relatively simple waterproofing structures, such as applying glue or using waterproof gaskets. However, metal shells have fewer waterproofing options, typically using waterproof gaskets or L-shaped upper and lower shell structures. Waterproof gaskets usually require a large flange for pressing the gasket together, while L-shaped upper and lower shell structures cannot achieve true waterproofing.

[0004] This solution is a battery design with a waterproof metal casing, which can minimize the size of the casing while achieving IPX6 waterproofing, thus solving the problem of metal casings being difficult to waterproof. Utility Model Content

[0005] The present invention aims to at least solve the problem of insufficient waterproofing effect of battery metal casings in the prior art.

[0006] This solution provides a battery with a waterproof metal casing structure, achieved through the following specific technical means: including a casing and a battery module disposed within the casing;

[0007] The outer shell consists of a bottom shell and a top cover. The top cover and the bottom shell are connected by bolts. Waterproof silicone is filled in the mounting holes on the top cover and the bottom shell for mounting bolts. Waterproof silicone is also filled between the nuts and studs in the bolts.

[0008] The battery module includes a cell bracket with multiple sets of slots arranged in a matrix. Each set of slots is used to insert a group of individual cells. The cells are inserted into the cell bracket for fixation. Each individual cell can be isolated individually to facilitate heat dissipation for each individual cell.

[0009] Cell supports are installed at both ends of a single cell.

[0010] Preferred technical solution 1: A set of partitions is fixed on the sides of the two sets of battery cell brackets that are far apart from each other, and the partitions are epoxy resin boards;

[0011] When the battery module is placed into the bottom case, a partition is used to contact the bottom case wall and to isolate the bottom case wall from the battery bracket.

[0012] Preferred technical solution 2: A set of mounting plates is also fixed on the top of the battery module, and the mounting plates are preferably epoxy resin plates, which are adhered to the single cells located on the top layer.

[0013] The mounting plate is used to mount and fix the battery management module, and the mounting plate is used to isolate the battery management module from the individual battery cells.

[0014] Preferred technical solution 3: Multiple groups of individual cells are connected in series and parallel.

[0015] Preferred technical solution four: A discharge port, a communication port, a waterproof and breathable valve, and a handle are fixedly installed on the upper cover. The discharge port, communication port, waterproof and breathable valve, and handle are fixed to the upper cover with bolts. A charging port is fixedly installed on the bottom shell, and the charging port is also fixed with bolts. At the same time, the mounting holes on the upper cover and the bottom shell for mounting bolts are filled with waterproof silicone, and the nuts, nut caps, and screws in the bolts are also filled with waterproof silicone.

[0016] Preferred technical solution five: A sealing gasket is placed between the upper cover and the bottom shell.

[0017] Mounting holes include screw holes.

[0018] The above structure gives this solution the following advantages:

[0019] 1. The internal battery cells are fixed in the single module using a bracket structure. This structure can ensure that the battery still meets the requirements of vibration resistance test standards when the vehicle is facing various road conditions. At the same time, it can also provide a good heat dissipation environment for the battery cells, which can effectively reduce the risk of thermal runaway of the battery.

[0020] 2. This solution combines the advantages of two types of shell structures: L-shaped upper and lower shell structure with metal casing and upper and lower shell structure with flange and gasket. It can maintain a compact shell size and achieve a waterproof IPX6 rating. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of this solution;

[0023] Figure 2 This is an exploded view of the entire plan;

[0024] Figure 3 This is an exploded view of the battery module in this solution;

[0025] Figure 4 This is a magnified view of a portion of the solution.

[0026] The components include: 1. Outer shell; 11. Bottom shell; 111. Charging port; 12. Top cover; 121. Discharge port; 122. Communication port; 123. Waterproof and breathable valve; 124. Handle; 13. Mounting hole; 2. Battery module; 21. Cell bracket; 211. Slot; 22. Individual cell; 23. Separator; 24. Mounting plate; 25. Battery management module; 3. Sealing gasket; 4. Waterproof silicone. Detailed Implementation

[0027] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-4 A battery with a waterproof metal casing includes a casing 1 and a battery module 2 disposed in the casing 1. The casing 1 is composed of a bottom shell 11 and a top cover 12. The top cover 12 is connected to the bottom shell 11 by screws, and the mounting holes 13 on the top cover 12 and the bottom shell 11 for mounting screws are filled with waterproof silicone 4, wherein the mounting holes 13 are preferably screw holes.

[0029] The battery module 2 includes a cell bracket 21. Multiple sets of slots 211 are distributed in a matrix on the cell bracket 21. Each set of slots 211 is used to insert a set of individual cells 22. The multiple sets of individual cells 22 are connected in series and parallel. The individual cells 22 are inserted into the cell bracket 21 for fixation. Each individual cell 22 can be isolated individually, which facilitates heat dissipation of each individual cell 22.

[0030] The cell support 21 is provided at both ends of the single cell 22. A set of partitions 23 is fixed on the side of the two sets of cell supports 21 that are far apart from each other. The partitions 23 are epoxy resin boards. When the battery module 2 is placed into the bottom shell 11, the partitions 23 contact the bottom shell 11 wall and isolate the bottom shell 11 wall from the cell support 21 through the partitions 23.

[0031] A set of mounting plates 24 is also fixed on the top of the battery module 2. The mounting plates 24 are preferably epoxy resin plates and are adhered to the several sets of individual cells 22 located on the top layer. The mounting plates 24 are used to install and fix the battery management module 25 (using existing technology) and to isolate the battery management module 25 from the individual cells 22.

[0032] Please see Figure 1 and Figure 4The battery has a waterproof metal casing. The top cover 12 is fixedly equipped with a discharge port 121, a communication port 122, a waterproof vent valve 123, and a handle 124. The discharge port 121, communication port 122, waterproof vent valve 123, and handle 124 are bolted to the top cover 12. The bottom shell 11 is fixedly equipped with a charging port 111, which is also bolted to the bottom. Waterproof silicone 4 is used to fill the mounting holes 13 for screws on both the top cover 12 and the bottom shell 11.

[0033] Meanwhile, waterproof silicone 4 is used to fill the spaces between nuts, nut caps, and screws in all mounting holes 13.

[0034] Please see Figure 2 and Figure 4 The battery has a waterproof metal casing, and a sealing gasket 3 is placed between the top cover 12 and the bottom cover 11.

[0035] Specific usage process: Install the discharge port 121, communication port 122, waterproof and breathable valve 123, and handle 124 onto the top cover 12 in advance, and apply waterproof silicone 4 to the screw holes on the top cover 12.

[0036] Then, place the internal battery module 2 vertically inside the bottom shell 11, lock the charging port 111 to the side of the bottom shell 11, apply waterproof silicone 4 to the screw holes, apply waterproof silicone 4 to the inside of the nut cover, put the nut cover on the nut on the bottom shell 11, then attach the sealing gasket 3 to the inside of the top of the top cover 12, then press the top cover 12 onto the bottom shell 11, and tighten the screws. After the waterproof silicone 4 dries completely, the waterproof structure of the entire metal shell 1 battery is complete.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery with a waterproof metal casing, characterized in that: It includes a housing (1) and a battery module (2) disposed in the housing (1); The outer shell (1) is composed of a bottom shell (11) and an upper cover (12). The upper cover (12) and the bottom shell (11) are connected by screws. The mounting holes (13) on the upper cover (12) and the bottom shell (11) for mounting screws are filled with waterproof silicone (4). At the same time, the waterproof silicone (4) is filled between the screw and nut cover. The battery module (2) includes a cell support (21), on which multiple sets of slots (211) are distributed in a matrix, and each set of slots (211) is used to insert a set of individual cells (22); The cell support (21) is provided at both ends of the individual cell (22).

2. The battery with a waterproof metal casing according to claim 1, characterized in that: Each of the two sets of cell supports (21) has a set of partitions (23) fixed on the side away from each other.

3. The battery with a waterproof metal casing structure according to claim 2, characterized in that: The top of the battery module (2) is also fixed with a set of mounting plates (24), which are used to install and fix the battery management module (25).

4. The battery with a waterproof metal casing structure according to claim 1, characterized in that: The upper cover (12) is fixedly installed with a discharge port (121), a communication port (122), a waterproof and breathable valve (123), and a handle (124). The discharge port (121), the communication port (122), the waterproof and breathable valve (123), and the handle (124) are fixed to the upper cover (12) by screws. The bottom shell (11) is fixedly installed with a charging port (111).

5. The battery with a waterproof metal casing structure according to claim 1, characterized in that: A sealing gasket (3) is placed between the upper cover (12) and the bottom shell (11).

6. The battery with a waterproof metal casing structure according to claim 2, characterized in that: The partition (23) is an epoxy resin board.

7. The battery with a waterproof metal casing structure according to claim 3, characterized in that: The mounting plate (24) is made of epoxy resin board material and is glued to several groups of individual cells (22) located on the top layer.

Images