Shell of waterproof battery pack and waterproof battery pack using same
By using a waterproof battery pack housing composed of upper and lower sheet metal parts, the problems of high mold costs and long procurement cycles were solved, achieving low-cost and high-efficiency production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-07
AI Technical Summary
Existing waterproof battery packs require molds during production, resulting in high manufacturing costs and long procurement cycles, making them unsuitable for small-order production.
The upper and lower sheet metal parts are combined with a sealing ring to form a closed shell, which is connected by screws, eliminating the need for a resin cap and simplifying the production process.
It reduced production costs, shortened the procurement cycle, adapted to the needs of small orders, and improved production efficiency.
Smart Images
Figure CN224096856U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to a housing of a waterproof battery pack and a waterproof battery pack using the same, and in particular, to a waterproof battery pack having a housing composed of sheet metal members. BACKGROUND
[0002] For a battery pack, liquid isolation can improve the safety, durability and environmental adaptability of the device, especially in high-risk or special scenarios. In recent years, due to the development of electric power products, the application scenarios of battery packs are becoming more and more extensive, such as outdoor activity devices, underwater devices, and new energy vehicles, etc., and the demand for waterproof performance of battery packs is also getting higher and higher.
[0003] A conventional waterproof battery pack is composed of a plurality of battery cells and a housing that accommodates the plurality of battery cells. The housing includes a housing main body that is formed in a rectangular parallelepiped shape and has both ends open, resin covers for covering the open both ends of the housing main body, a wire hole formed in one of the resin covers for a wire to pass through, and a sealing ring provided between the housing main body and the resin cover.
[0004] However, in the conventional waterproof battery pack, the resin cover of the housing needs to be opened during the production process, which results in high manufacturing cost of the waterproof battery pack, long procurement cycle, and is not suitable for application in the case of small order quantity and tight production cycle. CONTENT OF THE UTILITY MODEL
[0005] PROBLEMS TO BE SOLVED BY THE UTILITY MODEL
[0006] The present disclosure is completed in view of the above situation, and aims to provide a housing of a waterproof battery pack and a waterproof battery pack using the same, which does not need a mold during the production process, can reduce the production cost, shorten the procurement cycle, and be suitable for small order customers.
[0007] MEANS FOR SOLVING THE PROBLEMS
[0008] The housing of the waterproof battery pack of the first mode of the present disclosure has an upper sheet metal member, a lower sheet metal member, and a sealing ring, the upper sheet metal member and the lower sheet metal member can be joined together with the sealing ring sandwiched therebetween, thereby forming a closed housing, the sealing ring seals the joint of the upper sheet metal member and the lower sheet metal member, and either one of the upper sheet metal member and the lower sheet metal member has a wire lead-out hole.
[0009] The housing of the waterproof battery pack of the second mode of the present disclosure is, in the housing of the waterproof battery pack of the first mode, the upper sheet metal member and the lower sheet metal member each have a flange protruding in the horizontal direction, and the respective flanges of the upper sheet metal member and the lower sheet metal member are joined together.
[0010] The housing of the third-party waterproof battery pack disclosed herein is such that, in the housing of the waterproof battery pack of the first or second type, screw holes are formed at corresponding positions of the respective flanges of the upper sheet metal and the lower sheet metal, and the upper sheet metal and the lower sheet metal can be joined by screws.
[0011] The housing of the fourth type of waterproof battery pack disclosed herein is such that, in the housing of the first or second type of waterproof battery pack, a plurality of elongated holes are formed on the flange of either the upper sheet metal part or the lower sheet metal part.
[0012] The fifth aspect of the waterproof battery pack disclosed herein is that, in the fourth aspect of the waterproof battery pack housing, the plurality of elongated holes are symmetrically formed on both sides of the housing.
[0013] The sixth aspect of the waterproof battery pack disclosed herein is that, in the case of the waterproof battery pack of the first or second aspect, the housing is formed in a cuboid shape.
[0014] The waterproof battery pack of the first aspect of this disclosure has: a housing of the first to sixth aspects, a plurality of battery cells and wires, wherein the plurality of battery cells are housed in the housing and the wires are led out from the housing through the wire lead-out holes.
[0015] The second aspect of the waterproof battery pack disclosed herein is that, in the first aspect of the waterproof battery pack, it further includes a waterproof wire head for sealing the wire lead-out hole.
[0016] Effects of the utility model
[0017] The waterproof battery pack disclosed herein does not require the use of a resin cap, nor does it require mold making for the resin cap. This results in low production costs, time savings, and a short procurement cycle, making it suitable for small order customers. Attached Figure Description
[0018] Figure 1 This is a perspective view of the upper and lower sheet metal parts of the housing of a waterproof battery pack according to one embodiment of the present disclosure.
[0019] Figure 2 This is a perspective view of the waterproof battery pack according to one embodiment of the present disclosure after the upper sheet metal parts have been removed.
[0020] Figure 3 This is a perspective view of a waterproof battery pack according to one embodiment of the present disclosure. Detailed Implementation
[0021] The following is for reference Figures 1 to 3This document describes a waterproof battery pack housing according to one embodiment of the present disclosure, as well as a battery pack using the housing. It should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below. In fact, the embodiments described below are intended to make the disclosure more complete and to fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments. It should be understood that the terminology used in the specification is used only to describe specific embodiments and is not intended to limit the present disclosure. All terms used in the specification (including technical and scientific terms) have the meaning commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, well-known functions or structures may not be described in detail.
[0022] In all the accompanying drawings, the same reference numerals denote the same elements. Furthermore, the drawings are schematic diagrams illustrating the structure of the devices and systems involved in this disclosure, and the devices and systems involved in this disclosure are not limited to the structures shown in the drawings. The terminology used in the specification is only for describing specific embodiments and is not intended to limit this disclosure. All terms used in the specification, unless otherwise defined, have the meaning commonly understood by those skilled in the art. For the sake of brevity and clarity, well-known functions or structures may not be described in detail. In the description of this utility model, the term "connection" includes both "direct connection" and "indirect connection," and the terms "upper," "lower," "inner," "outer," etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or orientations or positional relationships conventionally set when the utility model product is used. These are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0023] Figure 1 This is a perspective view of the upper and lower sheet metal parts of the housing of a waterproof battery pack according to one embodiment of this disclosure. Figure 1 As shown, the housing of the waterproof battery pack disclosed herein includes an upper sheet metal part 1, a lower sheet metal part 2, and a sealing ring (not shown). The shape and size of the housing are not particularly limited, and can be appropriately selected according to the shape and size of the battery. Considering the common battery shapes, a cuboid shape is preferred. In this embodiment, a cuboid housing will be used as an example for explanation.
[0024] The upper sheet metal part 1 serves as the upper cover of the housing, having a rectangular main body when viewed from above and a flange extending horizontally around the periphery of the main body. Multiple screw holes 11 and elongated holes 12 are provided on the flange. In this embodiment, the screw holes 11 are formed to surround the main body of the upper sheet metal part 1. To ensure sealing, it is preferable to have at least three screw holes along each side of the upper sheet metal part 1. The elongated holes on the upper sheet metal part 1 facilitate the assembly and movement of the battery pack. In this embodiment, two elongated holes 12 are provided on each of the two long sides of the upper sheet metal part 1, for a total of four elongated holes.
[0025] The lower sheet metal part 2 is a rectangular box with an opening on its upper surface. A flange extending horizontally is provided around the opening. Screw holes 22 are provided on the flanges of the lower sheet metal part 2 at positions corresponding to the flanges of the upper sheet metal part 1. Thus, the upper sheet metal part 1 and the lower sheet metal part 2 can be assembled together using screws. The flanges of the upper sheet metal part 1 and the lower sheet metal part 2 are face-fitted via a sealing ring (not shown), thereby achieving a sealed state after installation. Furthermore, the lower sheet metal part 2 has wire outlet holes 21. In this embodiment, two wire outlet holes 21 are provided on one of the four sides of the lower sheet metal part 2 adjacent to the opening.
[0026] Figure 2 This is a perspective view of the waterproof battery pack according to one embodiment of this disclosure after the upper sheet metal parts have been removed. Figure 2 As shown, when multiple battery cells 3 are installed in the lower sheet metal part 2, since the height of the multiple battery cells 3 is higher than the height of the lower sheet metal part 2, the multiple battery cells 3 protrude upward from the opening of the lower sheet metal part 2. The sealing ring (not shown) can be positioned by the shape of the battery cells, and there is no need to design a positioning mechanism on the lower sheet metal part 2.
[0027] A wire waterproof head 24 is installed at the wire outlet hole 21 of the lower sheet metal part 2. The wire 4 passes through the wire waterproof head 24, thereby preventing water from entering the housing from the wire outlet hole 21.
[0028] Figure 3 This is a perspective view of a waterproof battery pack according to one embodiment of this disclosure. Figure 3 As shown, the flanges of the upper sheet metal part 1 and the lower sheet metal part 2 are joined together by screws. Because the upper sheet metal part 1 and the lower sheet metal part 2 press against the sealing ring, water is prevented from entering the battery pack.
[0029] In the embodiments of this disclosure, by using a combination of upper sheet metal parts, lower sheet metal parts and sealing rings, there is no need to use a resin cap, and there is no need to open a mold to make a resin cap, thereby reducing mold costs and simplifying production steps, solving the problems of high mold costs and long procurement cycles, and enabling the handling of small orders.
[0030] The above describes one embodiment of the present disclosure. However, the above embodiment is only one example of implementing the present disclosure. The present disclosure is not limited to the specific embodiments mentioned in this specification. As long as it does not depart from the spirit of the present disclosure, those skilled in the art can make various modifications as needed.
[0031] For example, in the above embodiment, both the upper and lower sheet metal parts have 16 screw holes. However, the number of screw holes is arbitrary; the number of screw holes on the upper and lower sheet metal parts can be the same or different, as long as there is a certain number of aligned screw holes. The goal is to ensure that the upper and lower sheet metal parts are fastened together in a sealed state using screws. Additionally, in the above embodiment, the upper sheet metal part has four elongated holes. However, the number of elongated holes can also be arbitrary. Furthermore, in the above embodiment, the wire exit hole is located on a side adjacent to the open end, but the position of the wire exit hole can be arbitrary and can be set as needed.
[0032] The above description describes the housing of the waterproof battery pack of this utility model and the waterproof battery pack using the housing. However, this utility model is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit and scope of this utility model. It will be apparent to those skilled in the art that various omissions, modifications, and variations can be made to this utility model without departing from its spirit or scope. Therefore, it should be understood that this utility model includes changes and variations within the scope of the appended claims and their equivalents. In particular, it should be understood that any combination of any part or all of any two or more of the above-described embodiments and their variations is within the scope of this utility model.
[0033] Industrial applicability
[0034] This disclosure can be applied to industries such as the manufacture of waterproof battery packs.
Claims
1. A waterproof battery pack casing, wherein, It has an upper sheet metal part, a lower sheet metal part, and a sealing ring. The upper sheet metal part and the lower sheet metal part can clamp the sealing ring together to form a closed shell. The sealing ring seals the joint between the upper sheet metal part and the lower sheet metal part. Either the upper sheet metal part or the lower sheet metal part has a wire lead-out hole.
2. The housing of the waterproof battery pack as described in claim 1, wherein, The upper sheet metal part and the lower sheet metal part each have a flange protruding in the horizontal direction, and the respective flanges of the upper sheet metal part and the lower sheet metal part are joined together.
3. The housing of the waterproof battery pack as described in claim 1 or 2, wherein, Screw holes are formed at corresponding positions of the flanges of the upper sheet metal part and the lower sheet metal part, and the upper sheet metal part and the lower sheet metal part can be joined by screws.
4. The housing of the waterproof battery pack as described in claim 1 or 2, wherein, Multiple elongated holes are formed on the flange of either the upper sheet metal part or the lower sheet metal part.
5. The housing of the waterproof battery pack as described in claim 4, wherein, The plurality of elongated holes are symmetrically formed on both sides of the housing.
6. The housing of the waterproof battery pack as described in claim 1 or 2, wherein, The shell is formed in a cuboid shape.
7. A waterproof battery pack, wherein, have: The housing as described in any one of claims 1-6; Multiple battery cells, wherein the multiple battery cells are housed in the housing; as well as A wire, which is led out of the housing through the wire lead-out hole.
8. The waterproof battery pack as claimed in claim 7, wherein, It also has a waterproof connector for sealing the lead-out hole of the wire.