CN210120170U - Lithium battery waterproof structure - Google Patents

Abstract

The utility model discloses a lithium cell waterproof construction, including waterproof box and protection end cover, waterproof box inside face is equipped with the heat dissipation rib, tip opening has the second draw-in groove in the waterproof box up end, swing joint has spacing fixture block in the second draw-in groove, the outer fixed triangle water guide plate that has cup jointed of upper end of spacing fixture block, terminal surface fixed mounting has the sealing strip under the triangle water guide plate, waterproof box up end outside is embedded to have the cotton that absorbs water, the outer tip of protection end cover is opened there is the guide way, waterproof box inner chamber is equipped with ventilative baffle. This kind of lithium cell waterproof construction, through triangle water guide plate make can be with the protection box with the water introduction of protection end cover junction absorb water cotton on, through washing water cotton quick absorption, reduce the water yield of protection box with the protection end cover junction, improved the life of lithium cell, simultaneously, through the setting of heat dissipation rib, improve its radiating effect, increased the security that the lithium cell used.

Description

Lithium battery waterproof structure

Technical Field

The utility model relates to a lithium cell protection technical field specifically is a lithium cell waterproof construction.

Background

A "lithium battery" is a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a negative electrode material. Because the chemical characteristics of lithium metal are very active, the requirements on the environment for processing, storing and using the lithium metal are very high. With the development of science and technology, lithium batteries have become the mainstream nowadays. Lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996, and the safety, specific capacity, self-discharge rate and cost performance of rechargeable batteries were all superior to those of lithium ion batteries. Due to its own high technical requirement limits, only a few national companies are producing such lithium metal batteries today. The battery is widely used as an energy source, the positive electrode and the negative electrode of the battery are metal extremes with good conductivity, if the battery is used in a rainwater or humid environment, the battery can generate a self short circuit phenomenon due to the conductivity of water, and the battery consumes energy in vain and causes a safety problem. Therefore, when the battery needs to be used in a rainwater environment or a humid environment, the battery must be subjected to waterproof treatment, and the common sealing body causes difficulty in heat dissipation during the operation of the battery and even causes a safety problem. Therefore, a waterproof structure of the lithium battery is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium cell waterproof construction to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lithium battery waterproof construction, includes waterproof box and protective end cover, the waterproof box inboard is equipped with the heat dissipation rib, end opening has the second draw-in groove in the waterproof box up end, swing joint has spacing fixture block in the second draw-in groove, the fixed triangle water deflector that has cup jointed of the outer upper end of spacing fixture block, terminal surface fixed mounting has the sealing strip under the triangle water deflector, waterproof box up end outside is embedded to have the cotton that absorbs water, protective end cover middle part is opened has first draw-in groove, first draw-in groove middle part is equipped with the handle, protective end cover outer tip is opened there is the guide way, waterproof box inner chamber is equipped with ventilative baffle.

Preferably, the guide groove is communicated with the inner cavity of the first clamping groove, and the guide groove is square and is uniformly arranged on the outer side of the first clamping groove.

Preferably, the waterproof box and the protective end cover are corresponding in upper and lower positions, and the width and the length of the waterproof box are smaller than those of the protective end cover.

Preferably, the sealing strip is arranged in the second clamping groove, and the cross section of the sealing strip is L-shaped.

Preferably, the cotton that absorbs water locates the triangle water guide plate outside, just the cotton lateral surface that absorbs water is parallel and level mutually with waterproof box lateral surface.

Compared with the prior art, the beneficial effects of the utility model are that: this kind of lithium cell waterproof construction, through setting up the cotton that absorbs water, the heat dissipation rib, the sealing strip, triangle water guide plate and spacing fixture block structure, can block protection box and protection end cover junction through spacing fixture block and intake, simultaneously, make through triangle water guide plate can be with protection box and protection end cover junction on the water introduction cotton that absorbs water, absorb fast through washing water cotton, reduce the water yield of protection box and protection end cover junction, thereby can be in rain water environment or humid environment, effectively avoid the lithium cell to intake and cause the condition emergence that the life-span reduced, the life of lithium cell is improved, and simultaneously, setting through the heat dissipation rib, in waterproof to the lithium cell, improve its radiating effect, the security that the lithium cell used has been increased.

Drawings

FIG. 1 is a main sectional view of the structure of the present invention;

FIG. 2 is an enlarged view of the structure of the present invention at the position M;

fig. 3 is a top view of the structure of the present invention.

In the figure: the water-proof box comprises a waterproof box 1, heat dissipation ribs 2, a ventilating partition plate 3, a protective end cover 4, a first clamping groove 5, a handle 6, a guide groove 7, a limiting clamping block 8, a second clamping groove 9, a sealing strip 10, a triangular water guide plate 11 and water absorption cotton 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a lithium battery waterproof construction, includes waterproof box 1 and protection end cover 4, waterproof box 1 is corresponding with protection end cover 4 upper and lower position, and 1 width of waterproof box and length all are less than protection end cover 4. The waterproof box 1 and the protective end cover 4 are connected through a hasp, the hasp is uniformly arranged at the joint of the waterproof box 1 and the protective end cover 4, the hasp type is FD-14 (ear hair), the waterproof box 1 is made of plastics, and the waterproof box is a thermoplastic high polymer material which is high in strength, good in toughness and easy to machine and form. Because of its high strength and corrosion resistance, it is often used to make plastic waterproof boxes. Waterproof 1 medial surface of box is equipped with heat dissipation rib 2, heat dissipation rib 2 is the patent: CN201621135505.X an automobile lithium battery pack installation box, the heat dissipation rib that discloses through setting up heat dissipation rib 2, when waterproof to the lithium cell, improves its radiating effect, has increased the security that the lithium cell used. The utility model discloses a waterproof box, including waterproof box 1, end face fixed mounting has a sealing strip 10, sealing strip 10 locates second draw-in groove 9 inslot, and sealing strip 10 cross-section is "L" shape, and second draw-in groove 9 is square for the orbit, and second draw-in groove 9 is equipped with the interval with waterproof box 1's medial surface, swing joint has spacing fixture block 8 in the second draw-in groove 9, the thickness of spacing fixture block 8 is less than the groove width of second draw-in groove 9, the fixed triangle water deflector 11 that has cup jointed of the outer upper end of spacing fixture block 8, the fixed upper end that cup joints in spacing fixture block 8 of triangle water deflector 11, end face fixed mounting has sealing strip 10 under the triangle water deflector 11, second draw-in. The outer side of the upper end surface of the waterproof box 1 is embedded with absorbent cotton 12, the absorbent cotton 12 is sponge, a placing groove is arranged at the outer end part of the upper surface of the waterproof box 1, the absorbent cotton 12 is arranged in the placing groove, when rainwater enters the joint of the waterproof box 1 and the protective end cover 4, the triangular water guide plate 11 can enable water to flow towards the absorbent cotton 12 along the slope of the triangular water guide plate 11, the water at the joint of the waterproof box 1 and the protective end cover 4 can be quickly absorbed through the absorption effect of the absorbent cotton 12, and in the standing process, the water is sprayed out to the outer end, thereby effectively avoiding the occurrence of the condition of service life reduction caused by the water inlet of the lithium battery in a rainwater environment or a humid environment, improving the service life of the lithium battery, the cotton 12 that absorbs water locates the triangle water guide plate 11 outsides, just the cotton 12 lateral surfaces that absorb water are parallel and level mutually with waterproof box 1 lateral surface. The middle part of the protection end cover 4 is provided with a first clamping groove 5, the middle part of the first clamping groove 5 is provided with a handle 6, the outer side of the handle 6 is provided with anti-skidding lines, the anti-skidding lines are made of rubber materials, the friction force between the handle 6 and the handle can be effectively reduced in the carrying or carrying process, the outer end part of the protection end cover 4 is provided with a guide groove 7, the inner cavities of the guide groove 7 and the first clamping groove 5 are communicated, and the guide groove 7 is square and is evenly arranged on the outer side of the first clamping groove 5. The inner cavity of the waterproof box 1 is provided with the breathable partition board 3, the breathable partition board 3 is arranged to reduce contact between lithium battery packs, collision is relieved, and the service life of the lithium battery is prolonged.

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

Claims (5)

1. The utility model provides a lithium cell waterproof construction, includes waterproof box (1) and protection end cover (4), its characterized in that: waterproof box (1) medial surface is equipped with heat dissipation rib (2), the tip is opened in waterproof box (1) upper end face has second draw-in groove (9), swing joint has spacing fixture block (8) in second draw-in groove (9), triangle water deflector (11) have been cup jointed to spacing fixture block (8) outer upper end portion is fixed, terminal surface fixed mounting has sealing strip (10) under triangle water deflector (11), waterproof box (1) upper end face outside is embedded to have cotton (12) that absorb water, protection end cover (4) middle part is opened has first draw-in groove (5), first draw-in groove (5) middle part is equipped with handle (6), protection end cover (4) outer tip is opened there are guide way (7), waterproof box (1) inner chamber is equipped with ventilative baffle (3).

2. The lithium battery waterproof structure according to claim 1, characterized in that: the guide groove (7) is communicated with the inner cavity of the first clamping groove (5), and the guide groove (7) is square and is uniformly arranged on the outer side of the first clamping groove (5).

3. The lithium battery waterproof structure according to claim 1, characterized in that: the waterproof box (1) and the protection end cover (4) are corresponding in upper and lower positions, and the width and the length of the waterproof box (1) are smaller than those of the protection end cover (4).

4. The lithium battery waterproof structure according to claim 1, characterized in that: the sealing strip (10) is arranged in the groove of the second clamping groove (9), and the section of the sealing strip (10) is L-shaped.

5. The lithium battery waterproof structure according to claim 1, characterized in that: the water absorption cotton (12) is arranged on the outer side of the triangular water guide plate (11), and the outer side surface of the water absorption cotton (12) is flush with the outer side surface of the waterproof box (1).

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