Waterproof lithium battery

By using a silicone rubber sealing sleeve and a thermally conductive plastic fixing frame design in the lithium battery, the problem of lithium battery sensitivity to moisture is solved, achieving higher waterproof performance and heat dissipation efficiency, ensuring battery stability and lifespan.

CN223927484UActive Publication Date: 2026-02-17DONGGUAN GOLDEN PHOENIX ENERGY TECH CO LTD
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Patent Information

Application Number
CN202520047584.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-02-17
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

Existing lithium batteries are sensitive to moisture and their performance and safety are easily affected by the intrusion of even trace amounts of water, and their traditional waterproof performance is limited.

Method used

The first and second sealing sleeves, made of silicone rubber, are tightly fitted and fixed to the outside of the lithium battery cell. Combined with a thermally conductive plastic fixing frame and alumina filler, they enhance sealing and waterproof performance, while improving heat dissipation efficiency through heat dissipation fins and air groove design.

Benefits of technology

It effectively prevents moisture from entering the battery, improves the waterproof performance of lithium batteries, ensures stable battery operation and extends battery life, and enhances heat dissipation.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a waterproof lithium battery, which relates to the technical field of lithium batteries and comprises a shell component, an electricity storage component is fixedly mounted in the shell component, sealing components are arranged at the top and the bottom of the electricity storage component, the electricity storage component comprises a fixing frame, a fixing hole is formed in the fixing frame, and the sealing components are arranged in the fixing frame. A fixing hole is formed in the fixing frame, a lithium battery cell is fixedly installed in the fixing hole, sealing grooves are formed in the two ends of the outer side of the fixing frame, the sealing assembly comprises a top cover and a bottom plate, a first sealing sleeve is fixedly installed at the bottom of the top cover, a second sealing sleeve is fixedly installed at the top of the bottom plate, and the first sealing sleeve and the second sealing sleeve are arranged on the outer sides of the sealing grooves in a sleeving mode. The first sealing sleeve and the second sealing sleeve are made of silicone rubber materials. According to the waterproof lithium battery, the waterproof performance can be effectively improved, the influence of water on the use of the lithium battery core is avoided, and the waterproof lithium battery has relatively high practical value.
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Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery technical field, concretely is a waterproof lithium battery. BACKGROUND

[0002] Lithium battery is a kind of by lithium metal or lithium alloy as positive / negative electrode material, using non-aqueous electrolyte solution battery, it is a kind of can be repeatedly charged secondary battery, mainly divided into lithium metal battery and lithium ion battery.

[0003] Based on the above, the present inventor found that there are the following problems: the lithium battery is highly sensitive to moisture in the external environment due to its special structure, even if a small amount of moisture intrusion, may trigger a series of adverse reactions, affect battery performance, shorten the service life, even cause potential safety hazard, the traditional lithium battery is usually only waterproof in the heat shrink sleeve on the outside, and the waterproof performance is limited, inconvenient to use.

[0004] Therefore, in view of the above, the existing structure and defects are improved, a waterproof lithium battery is provided, so as to achieve the purpose of having more practical value. UTILITY MODEL CONTENTS

[0005] The utility model is to provide a kind of waterproof lithium battery, to solve the problems raised in the above background art.

[0006] A kind of waterproof lithium battery, including shell assembly, the shell assembly inside fixed mounting has electricity storage component, the electricity storage component top and bottom are equipped with sealing assembly, the electricity storage component includes fixed frame, the fixed frame inside is equipped with fixed hole, the fixed hole inside fixed mounting has lithium battery cell, the fixed frame outer side both ends are equipped with sealing groove, the sealing assembly includes top cover and bottom plate, the top cover is set in lithium battery cell top, the bottom plate is set in lithium battery cell bottom, the top cover bottom fixed mounting has first sealing sleeve, the bottom plate top fixed mounting has second sealing sleeve, the first sealing sleeve and second sealing sleeve are all set in sealing groove outer side, the material of the first sealing sleeve and second sealing sleeve is all silicone rubber material.

[0007] By adopting the technical scheme, the power storage assembly is fixedly installed inside the shell assembly, the sealing assembly is arranged at the top and bottom of the power storage assembly, the shell assembly buffers and protects the internal power storage assembly, the sealing assembly improves the waterproof performance of the power storage assembly, the fixing hole is arranged inside the fixed frame, the lithium battery cell is fixedly installed inside the fixing hole, the lithium battery cell is stably fixed, the sealing groove is arranged at the two ends of the outer side of the fixed frame, the waterproof performance of the sealing assembly to the power storage assembly is improved, the first sealing sleeve and the second sealing sleeve are sleeved outside the sealing groove, the materials of the first sealing sleeve and the second sealing sleeve are silicone rubber materials, the first sealing sleeve and the second sealing sleeve fix the top cover and the bottom plate outside the lithium battery cell, the first sealing sleeve and the second sealing sleeve are tightly fixed with the top end and the bottom end of the outer side of the fixed frame, the waterproof performance is effectively improved, and water is prevented from entering the inside to affect the lithium battery cell.

[0008] Further, the lithium battery cell is fixedly installed with a plurality of first bus bars at the top, and a second bus bar is fixedly installed at the bottom.

[0009] By adopting the technical scheme, the lithium battery cell is fixedly installed with a plurality of first bus bars at the top, and a second bus bar is fixedly installed at the bottom, so that a plurality of lithium battery cells can be connected in parallel, and the lithium battery cell can store electric energy.

[0010] Further, the first bus bar is fixedly installed with a circuit box at the top, the circuit box is internally provided with a protection circuit, the protection circuit is electrically connected with the lithium battery cell, and the circuit box is provided with two electrode contacts at the top.

[0011] By adopting the technical scheme, the protection circuit is electrically connected with the lithium battery cell, and the circuit box is provided with two electrode contacts at the top, so that the user can use the electric energy stored in the lithium battery cell through the electrode contacts, the lithium battery cell can be charged, and the protection circuit can protect the charging and discharging process of the lithium battery cell.

[0012] Further, two electrode sleeves are arranged at the top of the top cover and outside the electrode contacts.

[0013] By adopting the technical scheme, the two electrode sleeves are arranged at the top of the top cover and outside the electrode contacts, so that the user can charge and discharge the lithium battery cell through the electrode contacts, and the electric energy can be stored and used.

[0014] Further, the fixed frame is fixedly installed with a heat dissipation fin outside, the material of the fixed frame is heat-conducting plastic, and the fixed frame is internally provided with an aluminum oxide filler.

[0015] By adopting the technical scheme, the material of the fixed frame is heat-conducting plastic, and the fixed frame is internally provided with alumina fillers, so that the lithium battery cell can be stably fixed and cooled, and the heat generated by the lithium battery cell during operation can be conducted to the cooling fins to be dissipated outward, and the insulation performance can be improved.

[0016] Further, the shell assembly comprises a shell, and an electrode hole is formed in the middle of the top end of the shell and is arranged outside the electrode contact.

[0017] By adopting the technical scheme, the electrode hole is formed in the middle of the top end of the shell and is arranged outside the electrode contact, so that the electrode contact can be arranged outside the shell, and the electrical energy stored in the lithium battery cell can be conveniently used.

[0018] Further, an air inlet groove is formed outside the shell and is arranged outside the cooling fins.

[0019] By adopting the technical scheme, the air inlet groove is formed outside the shell and is arranged outside the cooling fins, so that the air outside the shell can enter the cooling fins from the air inlet groove to be cooled.

[0020] Further, an air outlet groove is formed outside the top end of the shell and is arranged at the top of the cooling fins.

[0021] By adopting the technical scheme, the air outlet groove is formed outside the top end of the shell and is arranged at the top of the cooling fins, so that the air that has absorbed the heat of the cooling fins can be discharged upward from the air outlet groove, the efficiency of the air flowing through the surface of the cooling fins is improved, and the efficiency of cooling the lithium battery cell is improved.

[0022] Compared with the prior art, the utility model has the advantages that: the shell assembly is internally fixedly installed with the electricity storage assembly, the electricity storage assembly is provided with the sealing assembly at the top and the bottom, the shell assembly can buffer and protect the electricity storage assembly, the sealing assembly improves the waterproof performance of the electricity storage assembly, the fixed frame is internally provided with the fixing hole, the lithium battery cell is fixedly installed in the fixing hole, the lithium battery cell can be stably fixed, the fixed frame is externally provided with the sealing groove at both ends, the waterproof performance of the sealing assembly to the electricity storage assembly is improved, the first sealing sleeve and the second sealing sleeve are both sleeved outside the sealing groove, the material of the first sealing sleeve and the second sealing sleeve is silicon rubber material, the first sealing sleeve and the second sealing sleeve can fix the top cover and the bottom plate outside the lithium battery cell, the first sealing sleeve and the second sealing sleeve are tightly fixed with the top end and the bottom end of the fixed frame, the waterproof performance can be effectively improved, and water can be prevented from entering the inside to affect the lithium battery cell. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a three-dimensional structure schematic view of the waterproof lithium battery of the utility model;

[0024] Figure 2 It is an explosion drawing of the waterproof lithium battery of the utility model;

[0025] Figure 3 It is an explosion drawing of the utility model storage assembly;

[0026] Figure 4 It is a three-dimensional structure schematic view of the utility model fixed frame;

[0027] Figure 5 It is an explosion drawing of the utility model sealing assembly.

[0028] In the drawing: 101, shell assembly; 10101, shell; 10102, air inlet groove; 10103, air outlet groove; 10104, electrode hole; 102, storage assembly; 10201, circuit box; 10202, electrode contact; 10203, first busbar; 10204, second busbar; 10205, lithium battery cell; 10206, fixed frame; 10207, heat dissipation fin; 10208, sealing groove; 10209, fixing hole; 103, sealing assembly; 10301, top cover; 10302, electrode sleeve; 10303, first sealing sleeve; 10304, bottom plate; 10305, second sealing sleeve. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] Please refer to Figures 1-5The utility model provides a technical scheme: a waterproof lithium battery, including shell assembly 101, the inside fixed mounting of shell assembly 101 has the electricity storage subassembly 102, the top and bottom of electricity storage subassembly 102 are equipped with sealing assembly 103, through the inside fixed mounting of shell assembly 101 has electricity storage subassembly 102, the top and bottom of electricity storage subassembly 102 are equipped with sealing assembly 103, the inside electricity storage subassembly 102 of shell assembly 101 is convenient for buffering protection, sealing assembly 103 improves the waterproof performance of electricity storage subassembly 102, and electricity storage subassembly 102 includes fixed frame 10206, and fixed hole 10209 is seted up inside fixed frame 10206, and lithium electricity core 10205 is fixedly installed in fixed hole 10209, and fixed hole 10209 is seted up inside fixed frame 10206, and lithium electricity core 10205 is fixedly installed in fixed hole 10209, and it is convenient for the firm fixing of lithium electricity core 10205, and the both ends of fixed frame 10206 outside are equipped with sealing groove 10208, and the both ends of fixed frame 10206 outside are equipped with sealing groove 10208, and it is convenient to improve the waterproof performance of sealing assembly 103 to the sealing of electricity storage subassembly 102, and sealing assembly 103 includes top cover 10301 and bottom plate 10304, and top cover 10301 sets up at the top of lithium electricity core 10205, and bottom plate 10304 sets up at the bottom of lithium electricity core 10205, and first sealing sleeve 10303 is fixedly installed at the bottom of top cover 10301, and second sealing sleeve 10305 is fixedly installed at the top of bottom plate 10304, and first sealing sleeve 10303 and second sealing sleeve 10305 are all set in the outside of sealing groove 10208, and the material of first sealing sleeve 10303 and second sealing sleeve 10305 is silicon rubber material, and first sealing sleeve 10303 and second sealing sleeve 10305 are all set in the outside of sealing groove 10208, and the material of first sealing sleeve 10303 and second sealing sleeve 10305 is silicon rubber material, and first sealing sleeve 10303 and second sealing sleeve 10305 are fixed in the outside of lithium electricity core 10205 with top cover 10301 and bottom plate 10304, and first sealing sleeve 10303 and second sealing sleeve 10305 are closely fixed with the top end and the bottom end of the outside of fixed frame 10206, can effectively improve waterproof performance, avoid moisture to enter inside and cause the influence of lithium electricity core 10205.

[0031] Wherein, the top of lithium electricity core 10205 is fixedly installed with a plurality of first bus bars 10203, and the bottom of lithium electricity core 10205 is fixedly installed with second bus bar 10204, through the top of lithium electricity core 10205 is fixedly installed with a plurality of first bus bars 10203, and the bottom of lithium electricity core 10205 is fixedly installed with second bus bar 10204, it is convenient to parallelly connect multiple lithium electricity core 10205, and lithium electricity core 10205 can store electric energy.

[0032] The first bus bar 10203 is fixedly installed on the top of the circuit box 10201, the circuit box 10201 is internally provided with a protection circuit, the protection circuit is electrically connected with the lithium battery cell 10205, two electrode contacts 10202 are arranged on the top of the circuit box 10201, the lithium battery cell 10205 is electrically connected with the protection circuit through the electrode contacts 10202, the electrode contacts 10202 are arranged on the top of the circuit box 10201, so that the user can use the electrical energy stored in the lithium battery cell 10205 through the electrode contacts 10202, and the lithium battery cell 10205 can be conveniently charged, and the protection circuit can protect the charging and discharging process of the lithium battery cell 10205.

[0033] The top cover 10301 is provided with two electrode sleeves 10302 on the top, the electrode sleeves 10302 are arranged outside the electrode contacts 10202, the top cover 10301 is provided with the two electrode sleeves 10302 on the top, and the electrode sleeves 10302 are arranged outside the electrode contacts 10202, so that the user can use the electrode contacts 10202 to charge and discharge the lithium battery cell 10205, and the electrical energy can be conveniently stored and used. The fixed frame 10206 is fixedly installed on the outside of the fixed frame 10206, the material of the fixed frame 10206 is heat-conducting plastic, and the fixed frame 10206 is internally provided with an aluminum oxide filler, the material of the fixed frame 10206 is heat-conducting plastic, and the fixed frame 10206 is internally provided with an aluminum oxide filler, so that the lithium battery cell 10205 can be stably fixed and cooled, the heat generated by the lithium battery cell 10205 during operation can be conducted to the heat dissipation fins 10207, the heat can be dissipated outward, and the insulation performance can be improved.

[0034] The shell assembly 101 includes a shell 10101, the shell 10101 is provided with an electrode hole 10104 in the middle of the top end, the electrode hole 10104 is arranged outside the electrode contacts 10202, the shell 10101 is provided with the electrode hole 10104 in the middle of the top end, and the electrode hole 10104 is arranged outside the electrode contacts 10202, so that the electrode contacts 10202 can be arranged outside the shell 10101, and the electrical energy stored in the lithium battery cell 10205 can be conveniently used.

[0035] The shell 10101 is provided with an air inlet groove 10102 on the outside, the air inlet groove 10102 is arranged outside the heat dissipation fins 10207, the shell 10101 is provided with the air inlet groove 10102 on the outside, and the air inlet groove 10102 is arranged outside the heat dissipation fins 10207, so that the air outside the shell 10101 can flow into the heat dissipation fins 10207 through the air inlet groove 10102 to dissipate heat.

[0036] The shell 10101 top end outer side is provided with an exhaust groove 10103, the exhaust groove 10103 is arranged at the top of the heat dissipation fin 10207, the shell 10101 top end outer side is provided with the exhaust groove 10103, the exhaust groove 10103 is arranged at the top of the heat dissipation fin 10207, the air that has absorbed the heat of the heat dissipation fin 10207 is discharged upwards from the exhaust groove 10103, the efficiency of the air circulation from the surface of the heat dissipation fin 10207 is improved, thereby improving the efficiency of the heat dissipation of the lithium battery cell 10205.

[0037] Specifically, the working principle of the waterproof lithium battery: in use, the fixed frame 10206 is internally provided with a fixed hole 10209, the lithium battery cell 10205 is fixedly installed in the fixed hole 10209, the lithium battery cell 10205 is stably fixed, the fixed frame 10206 is externally provided with a sealing groove 10208 at both ends, the sealing performance of the sealing assembly 103 to the power storage assembly 102 is improved, a plurality of first bus bars 10203 are fixedly installed on the top of the lithium battery cell 10205, and a second bus bar 10204 is fixedly installed at the bottom of the lithium battery cell 10205, the plurality of lithium battery cells 10205 are connected in parallel, the lithium battery cell 10205 can store electric energy, the protection circuit is electrically connected with the lithium battery cell 10205, two electrode contacts 10202 are arranged at the top of the circuit box 10201, the user can use the electric energy stored in the lithium battery cell 10205 through the electrode contacts 10202, the lithium battery cell 10205 can be charged, the protection circuit can protect the charging and discharging process of the lithium battery cell 10205, the first sealing sleeve 10303 and the second sealing sleeve 10305 are arranged outside the sealing groove 10208, the materials of the first sealing sleeve 10303 and the second sealing sleeve 10305 are both silicone rubber materials, the first sealing sleeve 10303 and the second sealing sleeve 10305 fix the top cover 10301 and the bottom plate 10304 outside the lithium battery cell 10205, the first sealing sleeve 10303 and the second sealing sleeve 10305 are tightly fixed to the top end and the bottom end of the fixed frame 10206, the waterproof performance is effectively improved, water is prevented from entering the inside to affect the lithium battery cell 10205, two electrode sleeves 10302 are arranged at the top of the top cover 10301, the electrode sleeves 10302 are arranged outside the electrode contacts 10202, the user can charge and discharge the lithium battery cell 10205 through the electrode contacts 10202, the electric energy can be stored and used, the material of the fixed frame 10206 is heat-conducting plastic, and the fixed frame 10206 is internally provided with an aluminum oxide filler, the lithium battery cell 10205 is stably fixed and cooled, the heat generated by the lithium battery cell 10205 during work is conducted to the heat dissipation fins 10207, the heat can be dissipated outward, and the insulation performance is improved, an electrode hole 10104 is arranged at the top of the shell 10101, the electrode hole 10104 is arranged outside the electrode contacts 10202, the electrode contacts 10202 are arranged outside the shell 10101, the electric energy stored in the lithium battery cell 10205 can be used, an air inlet groove 10102 is arranged outside the shell 10101, the air inlet groove 10102 is arranged outside the heat dissipation fins 10207, the air outside the shell 10101 enters the heat dissipation fins 10207 through the air inlet groove 10102 to be cooled, an air outlet groove 10103 is arranged outside the top of the shell 10101,The exhaust groove 10103 is arranged on the top of the heat dissipation fin 10207, the air with heat absorbed by the heat dissipation fin 10207 is discharged upward from the exhaust groove 10103, the efficiency of the air flowing from the surface of the heat dissipation fin 10207 is improved, and the efficiency of the heat dissipation of the lithium battery cell 10205 is improved.

[0038] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A waterproof lithium battery, characterized in that, The device includes a housing assembly (101), inside which an energy storage assembly (102) is fixedly installed. The energy storage assembly (102) has sealing assemblies (103) at its top and bottom. The energy storage assembly (102) includes a fixing frame (10206), inside which a fixing hole (10209) is formed. A lithium battery cell (10205) is fixedly installed inside the fixing hole (10209). Sealing grooves (10208) are formed at both ends of the outer side of the fixing frame (10206). The sealing assembly (103) includes a top cover (10301) and a bottom plate. (10304), the top cover (10301) is disposed on the top of the lithium battery cell (10205), the bottom plate (10304) is disposed on the bottom of the lithium battery cell (10205), a first sealing sleeve (10303) is fixedly installed on the bottom of the top cover (10301), and a second sealing sleeve (10305) is fixedly installed on the top of the bottom plate (10304). The first sealing sleeve (10303) and the second sealing sleeve (10305) are both sleeved on the outside of the sealing groove (10208). The first sealing sleeve (10303) and the second sealing sleeve (10305) are both made of silicone rubber.

2. A waterproof lithium battery according to claim 1, characterized in that, A plurality of first busbars (10203) are fixedly installed on the top of the lithium battery cell (10205), and a second busbar (10204) is fixedly installed on the bottom of the lithium battery cell (10205).

3. A waterproof lithium battery according to claim 2, characterized in that, A circuit box (10201) is fixedly installed on the top of the first busbar (10203). The circuit box (10201) is equipped with a protection circuit inside. The protection circuit is electrically connected to the lithium battery cell (10205). Two electrode contacts (10202) are provided on the top of the circuit box (10201).

4. A waterproof lithium battery according to claim 1, characterized in that, The top cover (10301) has two electrode sleeves (10302) on its top, and the electrode sleeves (10302) are located outside the electrode contacts (10202).

5. A waterproof lithium battery according to claim 4, characterized in that, Heat dissipation fins (10207) are fixedly installed on the outside of the fixing frame (10206). The fixing frame (10206) is made of thermally conductive plastic, and the fixing frame (10206) is filled with alumina filler.

6. A waterproof lithium battery according to claim 1, characterized in that, The housing assembly (101) includes a housing (10101), and an electrode hole (10104) is provided at the center of the top of the housing (10101). The electrode hole (10104) is located on the outside of the electrode contact (10202).

7. A waterproof lithium battery according to claim 6, characterized in that, An air inlet groove (10102) is provided on the outside of the housing (10101), and the air inlet groove (10102) is provided on the outside of the heat dissipation fins (10207).

8. A waterproof lithium battery according to claim 7, characterized in that, An exhaust groove (10103) is provided on the outer side of the top of the housing (10101), and the exhaust groove (10103) is located on the top of the heat dissipation fins (10207).