CN214477711U

CN214477711U - Waterproof heat dissipation type lithium cell

Info

Publication number: CN214477711U
Application number: CN202120399339.9U
Authority: CN
Inventors: 戴江兵
Original assignee: Mianyang Liwang New Energy Technology Co ltd
Current assignee: Sichuan Liwang New Energy Technology Co ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-10-22
Anticipated expiration: 2031-02-23

Abstract

The utility model discloses a waterproof heat dissipation type lithium battery, which comprises a housin, be equipped with the lithium cell package in the casing, the lithium cell package wraps up outward and has wrapped up lithium cell package installation cover, lithium cell package installation cover includes interior surface course and water absorption layer, all with the ventilative through-hole of seting up a plurality of groups triangle-shaped on the four walls of lithium cell installation cover, ventilative through-hole is the slope setting of interior high outer low for the lithium cell package, ventilative through-hole runs through interior surface course and water absorption layer, be equipped with outer ventilative hole on the four walls of casing, outer ventilative hole and ventilative through-hole one-to-one setting; the utility model discloses an inner surface layer and the setting on layer that absorbs water can absorb outside water through the layer that absorbs water, have guaranteed the drying of lithium cell package, simultaneously through the setting of ventilative through-hole and outer ventilative hole, play fine radiating effect, in the dust of avoiding outside that simultaneously can be fine gets into the casing, guaranteed the effect of using, set up ventilative through-hole into the intensity that whole device can effectively be guaranteed to triangular mode.

Description

Waterproof heat dissipation type lithium cell

Technical Field

The utility model relates to a lithium cell technical field, concretely relates to waterproof heat dissipation type lithium cell.

Background

The lithium battery is a primary battery using lithium metal or lithium alloy as a negative electrode material and using a non-aqueous electrolyte solution, unlike a lithium ion battery, which is a rechargeable battery, and a lithium ion polymer battery. The inventor of lithium batteries was edison. 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. Therefore, lithium batteries have not been used for a long time. With the development of microelectronic technology at the end of the twentieth century, miniaturized devices are increasing, and high requirements are made on power supplies. The lithium battery has then entered a large-scale practical stage. Lithium batteries refer to batteries that contain lithium (including metallic lithium, lithium alloys and lithium ions, lithium polymers) in an electrochemical system. Lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries. Lithium metal batteries are generally non-rechargeable and contain lithium in a metallic state. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable.

In the use of lithium cell, if take sealed measure, then appear easily because sealed and the radiating effect that leads to is not good, shortened the life of lithium cell, appear the explosion of lithium cell simultaneously easily, if do not take sealed measure, then the lithium cell is meeting water the back, appears easily because the unable work of lithium cell that leads to of lithium cell internal circuit short circuit, and the use of giving the user brings inconvenience.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the technical problem that the existing waterproof heat-dissipation lithium battery is inconvenient to use because the lithium battery cannot work easily after meeting water due to the fact that the lithium battery is short-circuited in an internal circuit of the lithium battery easily due to the fact that the existing sealing measures are adopted, the poor heat dissipation effect caused by sealing is easy to occur, the service life of the lithium battery is shortened, and meanwhile explosion of the lithium battery is easy to occur.

The utility model adopts the technical scheme as follows:

the utility model provides a waterproof heat dissipation type lithium cell, includes the casing, be equipped with the lithium cell package in the casing, the outer parcel of lithium cell package has lithium cell package installation cover, lithium cell package installation cover includes interior surface course and the layer that absorbs water, all with the ventilative through-hole of seting up a plurality of groups triangle-shaped on the four walls of lithium cell installation cover, the slope setting that ventilative through-hole is interior high outer low for the lithium cell package, ventilative through-hole runs through interior surface course and the layer that absorbs water, be equipped with outer ventilative hole on the four walls of casing, outer ventilative hole sets up with ventilative through-hole one-to-one.

In the above scheme, the outer end of the outer air permeable hole is provided with a waterproof air permeable film.

In the scheme, the relation between the effective cross section area S1 of the ventilation through hole and the effective cross section area S2 of the outer ventilation hole is S2-S1-1.5-S2.

In the above scheme, the outer air vent is circular or regular polygon.

In the scheme, the surface of the inner surface layer is coated with a waterproof coating.

In the scheme, the water absorption layer is made of a water-absorbing and non-swelling polymer material.

Since the technical scheme is used, the beneficial effects of the utility model are that:

1. the utility model discloses an inner surface layer and the setting on layer that absorbs water can absorb outside water through the layer that absorbs water, guaranteed the drying of lithium cell package, simultaneously through the setting of ventilative through-hole and outer ventilative hole, play fine radiating effect, simultaneously through the mode that sets up ventilative through-hole slope downwards and set up with outer ventilative hole dislocation set, in can be fine avoid outside dust entering casing, guaranteed the effect of using, set up ventilative through-hole into triangle-shaped's mode can effectively guarantee the intensity of integrated device.

2. The utility model discloses a setting up of waterproof ventilated membrane can effectively avoid outside moisture to get into inside the casing.

3. The utility model discloses an effective sectional area S1 with ventilative through-hole and the effective sectional area S2 'S of outer gas permeability relation establish to S2 be less than or equal to S1 be less than or equal to 1.5S 2' S mode, isolated the dust when having guaranteed good ventilative radiating effect.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure: 1-shell, 2-lithium battery pack, 3-lithium battery pack mounting sleeve, 11-outer air-permeable hole, 12-waterproof air-permeable film, 31-inner surface layer, 32-water absorbing layer and 33-air-permeable through hole.

Detailed Description

To better implement the present invention, the following detailed description is made in conjunction with the accompanying drawings and specific embodiments, but the embodiments of the present invention are not limited thereto.

Example 1

A waterproof heat-dissipation lithium battery comprises a shell 1, a lithium battery pack 2 is arranged in the shell 1, a lithium battery pack installation sleeve 3 is wrapped outside the lithium battery pack 2, the lithium battery pack installation sleeve 3 comprises an inner surface layer 31 and a water absorption layer 32, a plurality of groups of triangular ventilation through holes 33 are formed in the four walls of the lithium battery installation sleeve 3, the ventilation through holes 33 are arranged in an inclined mode with high inside and low outside relative to the lithium battery pack 2, the ventilation through holes 33 penetrate through the inner surface layer 31 and the water absorption layer 32, outer ventilation holes 11 are formed in the four walls of the shell 1, the outer ventilation holes 11 are arranged in one-to-one correspondence with the ventilation through holes 33,

example 2

In addition to example 1, a waterproof breathable film 12 is provided at the outer end of the outer breathable hole 11.

Example 3

Based on the above embodiment, the relation between the effective cross-sectional area S1 of the ventilation through hole 33 and the effective cross-sectional area S2 of the outer ventilation hole 11 is S2 ≦ S1 ≦ 1.5S 2.

Example 4

On the basis of the above embodiment, the outer air permeable holes 11 are circular or regular polygonal.

Example 5

On the basis of the above embodiment, the surface of the inner surface layer 31 is coated with a waterproof coating.

Example 6

In addition to the above embodiments, the water-absorbing layer 32 is made of a polymer material that does not swell when absorbing water.

The foregoing is a primary feature of the present solution and its advantages, and it should be understood by those skilled in the art that the present solution is not limited by the foregoing embodiments, and that the foregoing embodiments and descriptions are only illustrative of the principles of the present solution, and that various changes and modifications may be made therein without departing from the spirit and scope of the present solution, which fall within the scope of the invention as claimed, and the scope of the present solution is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a waterproof heat dissipation type lithium cell, includes casing (1), be equipped with lithium cell package (2) in casing (1), its characterized in that: lithium cell package (2) outer parcel has lithium cell package installation cover (3), lithium cell package installation cover (3) include interior surface course (31) and absorb water layer (32), all with set up triangle-shaped ventilative through-hole (33) of a plurality of groups on the wall of lithium cell package installation cover (3), ventilative through-hole (33) are the slope setting of interior high outer low for lithium cell package (2), ventilative through-hole (33) run through interior surface course (31) and absorb water layer (32), be equipped with outer ventilative hole (11) on the wall of casing (1), outer ventilative hole (11) set up with ventilative through-hole (33) one-to-one.

2. The waterproof heat-dissipating lithium battery according to claim 1, wherein: the outer end of the outer air permeable hole (11) is provided with a waterproof air permeable film (12).

3. The waterproof heat-dissipating lithium battery according to claim 1, wherein: the relation between the effective sectional area S1 of the ventilation through hole (33) and the effective sectional area S2 of the outer ventilation hole (11) is S2-S1-1.5S 2.

4. The waterproof heat-dissipating lithium battery according to claim 1, wherein: the outer air-permeable holes (11) are circular or regular polygon.

5. The waterproof heat-dissipating lithium battery according to claim 1, wherein: the surface of the inner surface layer (31) is coated with a waterproof coating.

6. The waterproof heat-dissipating lithium battery according to claim 1, wherein: the water absorption layer (32) is made of a water-absorbing and non-swelling polymer material.