Waterproof structure of energy storage battery shell
By combining the base, sealing cover, and battery positioning bracket, along with the design of countersunk screws and sealing rings, the problem of large space occupation and high processing requirements in the existing waterproof design of energy storage battery casings is solved, achieving low-cost, environmentally friendly waterproof effect and improved stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-04-07
AI Technical Summary
Existing waterproof designs for energy storage batteries and power batteries suffer from problems such as large space occupation, high processing requirements, and difficulty in meeting IP67 waterproof requirements.
The battery box employs a combination structure of base, sealing cover and battery positioning bracket, combined with countersunk screws and sealing rings to form multiple seals, ensuring the battery box's waterproof performance.
It achieves low-cost, environmentally friendly waterproofing, improves the stability and safety of the battery box, and reduces processing difficulty and space occupation.
Smart Images

Figure CN224096843U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of energy storage power supply chassis technology, specifically to a waterproof structure for an energy storage battery casing. Background Technology
[0002] Existing waterproof designs for energy storage and power batteries primarily rely on one-piece molding of metal or plastic, with internal sealing through gluing or potting. Other methods involve using dedicated single sealing ring grooves, but these methods require significant space in the battery box and demand high-precision machining of the casing and metal, often failing to meet IP67 waterproof requirements. Therefore, we propose a low-cost, environmentally friendly, and easy-to-install waterproof structure. Utility Model Content
[0003] The purpose of this invention is to provide a waterproof structure for the outer casing of an energy storage battery to solve the problems mentioned above.
[0004] The objective of this utility model can be achieved through the following technical solutions:
[0005] A waterproof structure for the casing of an energy storage battery includes a battery box, a base is provided at the bottom of the battery box, a fixed cover is provided inside the battery box, and a sealing cover is provided at the top of the battery box.
[0006] The base has several battery positioning brackets arranged in a rectangular array inside.
[0007] A battery cover is provided above the fixed cover plate;
[0008] The sealing cover is equipped with an electrical connector.
[0009] As a further embodiment of this utility model: the side of the power connector is provided with a plurality of snap-fit positions in a circular array, and snap-fit buckles are provided on the outer side of the power connector and between the snap-fit positions.
[0010] The electrical connector has several electrical connection holes inside.
[0011] As a further embodiment of this utility model: both the base and the sealing cover are provided with a plurality of sealing grooves on their outer sides, and sealing rings are provided in the sealing grooves.
[0012] As a further embodiment of this utility model: several countersunk holes are symmetrically provided at both ends of the battery box;
[0013] The sealing cover and the base are respectively connected to the battery box by several countersunk screws provided on the side.
[0014] As a further embodiment of this utility model: the base has several fixed columns arranged in a rectangular array inside;
[0015] A battery cover is provided in the middle of the fixed cover plate, and a number of fixing bolts are arranged in a rectangular array on the fixed cover plate.
[0016] As a further embodiment of this utility model, a cantilever beam is provided above the sealing cover.
[0017] As a further embodiment of this utility model, the electrical connector is fixedly connected to the sealing cover plate by a plurality of mounting bolts arranged in a rectangular array on the side.
[0018] The beneficial effects of this utility model are:
[0019] In this invention, the energy storage battery is fixedly positioned between the battery positioning frames inside the base. One end of the battery box is fixedly connected to the base with countersunk screws. Then, the fixing cover plate is fixed to the energy storage battery to fix the energy storage battery. The upper end is also connected to the sealing cover plate with countersunk screws. At the same time, the energy storage battery power line is connected to the bottom of the power connector. This device has higher stability, better overall structure, is easy to disassemble and assemble, has low processing difficulty, high internal space utilization, and obvious cost advantages.
[0020] Both the base and the sealing cover have several sealing grooves on their outer sides, and sealing rings are installed in the sealing grooves. Several countersunk holes are symmetrically opened at both ends of the battery box. The sealing cover and the base are connected to the battery box by several countersunk screws on the side. After the energy storage power supply is fixed on the base, one end of the battery box is fixed to the base with countersunk screws, and the upper end is also connected to the sealing cover with countersunk screws. At this time, the sealing ring in the sealing groove and the battery box form a seal, which effectively prevents dust and water, and ensures the stability and safety of the energy storage power supply during use. Attached Figure Description
[0021] The present invention will be further described below with reference to the accompanying drawings.
[0022] Figure 1 This is an exploded view of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 3 This is an exploded view of the sealing ring and the base in this utility model;
[0025] Figure 4 This is a schematic diagram of the electrical connector structure in this utility model.
[0026] In the diagram: 1. Battery box; 10. Countersunk hole; 2. Base; 21. Countersunk screw; 22. Sealing ring; 220. Sealing groove; 23. Fixing post; 24. Battery positioning bracket; 3. Sealing cover; 31. Cantilever beam; 4. Fixing cover; 41. Fixing bolt; 42. Battery cover; 5. Power connector; 50. Snap-fit position; 51. Snap-fit buckle; 52. Mounting bolt; 53. Power connection hole. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figures 1-4 As shown, this utility model is a waterproof structure for the outer shell of an energy storage battery, including a battery box 1, a base 2 at the bottom of the battery box 1, a fixed cover plate 4 inside the battery box 1, a sealing cover plate 3 at the top of the battery box 1, a plurality of battery positioning brackets 24 arranged in a rectangular array inside the base 2, a battery cover 42 above the fixed cover plate 4, and a power connector 5 on the sealing cover plate 3.
[0029] During installation and use, the energy storage battery is fixedly positioned between the battery positioning brackets 24 inside the base 2, and then the fixing cover plate 4 is fixed on the energy storage battery to secure it. At the same time, the energy storage battery power cable is connected to the bottom of the power connector 5.
[0030] Specifically, the power connector 5 has several power connection holes 53 inside, and several snap-fit positions 50 are arranged in a ring array on the side of the power connector 5. Snap-fit buckles 51 are arranged on the outer side of the power connector 5 between several snap-fit positions 50. The power connector 5 is fixedly connected to the sealing cover plate 3 by several mounting bolts 52 arranged in a rectangular array on the side. The power connector 5 is fixed to the sealing cover plate 3. Then, a cantilever beam 31 is provided above the sealing cover plate 3, which can be lifted directly during hand movement. At the same time, snap-fit positions 50 are provided on the side of the power connector 5 to form snap-fit buckles 51, which facilitates the connection of the power connector 5 to external electrical equipment.
[0031] Both the base 2 and the sealing cover 3 have several sealing grooves 220 on their outer sides, and sealing rings 22 are installed in the sealing grooves 220. Several countersunk holes 10 are symmetrically opened at both ends of the battery box 1. The sealing cover 3 and the base 2 are connected to the battery box 1 by several countersunk screws 21 provided on the side. After the energy storage power supply is fixed on the base 2, one end of the battery box 1 is fixedly connected to the base 2 by the countersunk screws 21, and the upper end is also connected to the sealing cover 3 by the countersunk screws 21. At this time, the sealing rings 22 in the sealing grooves 220 and the battery box 1 form a seal, which effectively prevents dust and water, and ensures the stability and safety of the energy storage power supply during use.
[0032] The base 2 has a rectangular array of fixing posts 23 inside, and a battery cover 42 is provided in the middle of the fixing cover 4. The fixing cover 4 has a rectangular array of fixing bolts 41 to fix the energy storage battery to the base 2 and then fix it through the fixing cover 4, which ensures the stability of the energy storage battery inside the battery box 1 and maximizes the utilization of the length and width space inside the battery box 1.
[0033] The energy storage battery is positioned between the battery positioning brackets 24 inside the base 2. One end of the battery box 1 is fixedly connected to the base 2 with countersunk screws 21. Then, the fixing cover 4 is fixed to the energy storage battery to fix it. The upper end is also connected to the sealing cover 3 with countersunk screws 21. At the same time, the energy storage battery power cable is connected to the lower part of the power connector 5. This device has higher stability, better overall structure, is easy to disassemble and assemble, has low processing difficulty, high internal space utilization, and obvious cost advantages.
[0034] The working principle of this utility model:
[0035] Position the energy storage battery between the battery positioning brackets 24 inside the base 2. Fix one end of the battery box 1 to the base 2 with countersunk screws 21. Then fix the fixing cover plate 4 to the energy storage battery to fix the energy storage battery. The upper end is also connected to the sealing cover plate 3 with countersunk screws 21. At the same time, connect the energy storage battery power cable to the bottom of the power connector 5.
[0036] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.
Claims
1. A waterproof structure for the casing of an energy storage battery, characterized in that, Includes a battery box (1), a base (2) is provided below the battery box (1), a fixed cover plate (4) is provided inside the battery box (1), and a sealing cover plate (3) is provided above the battery box (1); The base (2) has several battery positioning brackets (24) arranged in a rectangular array inside; A battery cover (42) is provided above the fixed cover plate (4); The sealing cover plate (3) is provided with an electrical connector (5).
2. The waterproof structure for an energy storage battery casing according to claim 1, characterized in that, The side of the electrical connector (5) is provided with a number of snap-fit positions (50) in a ring array, and snap-fit buckles (51) are provided on the outside of the electrical connector (5) and between the snap-fit positions (50). The electrical connector (5) has several electrical connection holes (53) inside.
3. The waterproof structure for an energy storage battery casing according to claim 1, characterized in that, The outer sides of the base (2) and the sealing cover plate (3) are provided with a plurality of sealing grooves (220), and a sealing ring (22) is provided in the sealing groove (220).
4. The waterproof structure for an energy storage battery casing according to claim 1, characterized in that, The battery box (1) has several countersunk holes (10) symmetrically opened at both ends; The sealing cover (3) and the base (2) are respectively connected to the battery box (1) by a number of countersunk screws (21) provided on the side.
5. The waterproof structure for the outer casing of an energy storage battery according to claim 1, characterized in that, The base (2) has a rectangular array of fixed columns (23) inside; A battery cover (42) is provided in the middle of the fixed cover plate (4), and a number of fixing bolts (41) are arranged in a rectangular array on the fixed cover plate (4).
6. The waterproof structure for the outer casing of an energy storage battery according to claim 1, characterized in that, A cantilever beam (31) is provided above the sealing cover plate (3).
7. The waterproof structure for an energy storage battery casing according to claim 1, characterized in that, The electrical connector (5) is fixedly connected to the sealing cover plate (3) by a number of mounting bolts (52) arranged in a rectangular array on the side.