CN209822697U

CN209822697U - Waterproof and liquid-leakage-proof lithium battery

Info

Publication number: CN209822697U
Application number: CN201920751489.4U
Authority: CN
Inventors: 李卫松
Original assignee: Jiangsu Fuwei Energy Co Ltd
Current assignee: Jiangsu Fuwei Energy Co Ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2019-12-20
Anticipated expiration: 2029-05-23

Abstract

The utility model discloses a lithium battery with waterproof and leakage-proof functions, which belongs to the technical field of lithium batteries and comprises a lithium battery main body, wherein the top of the lithium battery main body is provided with a sealing cover, the sealing cover is spliced with a positive electrode post and a negative electrode post, the top of the lithium battery main body is provided with a sealing ring through a lower groove with a right trapezoid cross section, the bottom of the sealing cover is provided with an upper groove with a right trapezoid cross section matched with the top of the sealing ring, the outer side of the bottom of the lithium battery main body is provided with a lower shell, the top of the lower shell is provided with an upper shell, the top of the sealing cover is provided with a rectangular top frame, the left and the right of the top of the upper shell are provided with threading holes, the peripheral outer wall of the lithium battery main body is provided with a sealing frame strip with an isosceles trapezoid, the sealing ring is arranged through the upper groove and the lower groove, and the liquid leakage prevention effect of the sealing frame strip is good.

Description

Waterproof and liquid-leakage-proof lithium battery

Technical Field

The utility model relates to a lithium cell technical field specifically is a lithium cell of waterproof leak protection liquid.

Background

Lithium batteries are relatively high in energy. The lead-acid battery has high storage energy density which is about 6-7 times that of the lead-acid battery, long service life which can reach more than 6 years, low self-discharge rate, light overall weight and convenient use.

The lithium battery that can have now uses or when placing for a long time rainy day, receives moist influence easily, leads to the lithium cell short circuit to damage, phenomenons such as weeping, and some lithium cells are good for holistic leakproofness, and outer protective housing adopts the omniseal, leads to the thermal diffusivity poor, influences the life of lithium cell. Therefore, a waterproof and liquid-proof lithium battery is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium cell of waterproof leak protection liquid 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: a waterproof and liquid-leakage-proof lithium battery comprises a lithium battery main body, wherein a sealing cover is arranged at the top of the lithium battery main body, positive and negative electrode posts are inserted in the sealing cover, a sealing ring is arranged at the top of the lithium battery main body through a lower groove with a right trapezoid cross section, an upper groove with a right trapezoid cross section matched with the top of the sealing ring is arranged at the bottom of the sealing cover, a lower shell is arranged at the outer side of the bottom of the lithium battery main body, an upper shell is arranged at the top of the lower shell, a compression spring is arranged on the inner wall of the bottom of the lower shell, a supporting plate is arranged at the top of the compression spring, one end of the supporting plate is connected with the inner wall around the lower shell through a cantilever, a drain hole is arranged at the center of the bottom of the, the top of sealed lid is provided with the rectangle top frame, be provided with the through wires hole about the top of last casing, lithium cell main part's outer wall all around is provided with the sealing frame strip that the cross-section is isosceles trapezoid, sealed bottom of covering sets up to the inclined plane with sealing frame strip top complex.

Furthermore, the through hole of the sealing cover for inserting the positive and negative electrode columns is provided with an insulating rubber sealing sleeve, and the insulating rubber sealing sleeve is of a conical structure.

Further, fixed guide keeps away from casing inner wall one end down and is provided with T type helical pitch groove, the inner wall that T type helical pitch groove is close to casing one side down is provided with expanding spring, the lateral wall setting of spacing fixed plate and T type helical pitch groove complex T type draw runner, the other end and the expanding spring of T type draw runner are connected.

Furthermore, the top of the rectangular top frame is provided with a left group of threading arc-shaped grooves and a right group of threading arc-shaped grooves through elastic rubber attached to the inner wall of the top of the upper shell.

Furthermore, the top of the limiting fixing plate is provided with an outwards-turned arc-shaped edge.

Furthermore, the periphery of the lap joint matching part of the lower shell and the upper shell is fixedly connected through screws.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the top of a rectangular top frame of the device is provided with two groups of threading arc-shaped grooves through elastic rubber, a lead is tightly wrapped, the phenomenon that water flow enters and causes short circuit or damage is avoided, water entering from threading holes can flow out from a sealing cover and the outer wall of a lithium battery main body through a drain hole, the drain hole is convenient for heat dissipation of a battery, the lithium battery cannot be damaged due to high temperature, the bottom of the lithium battery main body is placed on a supporting plate, the periphery of the lithium battery main body is elastically supported by a limiting fixing plate, the lithium battery is;

2. set up the sealing washer through upper groove and low groove between the sealed lid of the device and the lithium cell main part binding face, produce the extrusion force to the sealing washer inclined plane when sealed lid and lithium cell main part erection joint, make the sealing washer closely laminate upper groove and low groove and prevent the weeping, the outer wall all around of lithium cell main part sets up the sealing frame strip, sealed lid bottom inclined plane and sealing frame strip top cooperation prevent that the water seal from getting into inside the lithium cell main part when preventing the weeping.

Drawings

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

FIG. 2 is a top view of the connecting structure of the fixed guide rail and the limiting fixing plate of the present invention;

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

In the figure: the lithium battery comprises a lithium battery main body 1, a sealing cover 2, positive and negative electrode columns 3, a sealing ring 4, a lower shell 5, an upper shell 6, a compression spring 7, a supporting plate 8, a water discharging hole 9, a fixed guide rail 10, a 101T-shaped lead groove, a 11 limiting fixed plate, a 111 expansion spring, a 112T-shaped sliding strip, a 12 rectangular top frame, a 121 threading arc-shaped groove, a 13 threading hole and a 14 sealing frame strip.

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: a waterproof and liquid-leakage-proof lithium battery comprises a lithium battery main body 1, wherein a sealing cover 2 is arranged at the top of the lithium battery main body 1, a positive electrode column and a negative electrode column 3 are inserted into the sealing cover 2, a sealing ring 4 is arranged at the top of the lithium battery main body 1 through a lower groove with a right trapezoid-shaped cross section, an upper groove with a right trapezoid-shaped cross section matched with the top of the sealing ring 4 is arranged at the bottom of the sealing cover 2, an extrusion force is generated on the inclined plane of the sealing ring 4 when the sealing cover 2 and the lithium battery main body 1 are installed and connected, the sealing ring 4 is tightly attached to the upper groove and the lower groove to prevent liquid leakage, a lower shell 5 is arranged on the outer side of the bottom of the lithium battery main body 1, an upper shell 6 is arranged at the top of the lower shell 5, the lower shell 5 and the upper shell 6 are in inside-, the bottom center of casing 5 is provided with wash port 9 down, the inner wall all around of casing 5 is close to the top and is provided with fixed guide 10 down, be provided with spacing fixed plate 11 in the fixed guide 10, the top of sealed lid 2 is provided with rectangle top frame 12, rectangle top frame 12 fixed connection is at the top of sealed lid 2, it is provided with through wires hole 13 to go up about 6 tops of casing, the outer wall all around of lithium cell main part 1 is provided with the cross-section and is isosceles trapezoid's seal frame strip 14, sealed lid 2 bottom set up to with 14 top complex inclined planes of seal frame strip.

As shown in fig. 1, the through hole of the sealing cover 2 for inserting the positive and negative electrode posts 3 is provided with an insulating rubber sealing sleeve, and the insulating rubber sealing sleeve is of a conical structure, so that the stability and the sealing performance of inserting the positive and negative electrode posts 3 are ensured;

as shown in fig. 2, a T-shaped lead groove 101 is formed in one end, away from the inner wall of the lower case 5, of the fixed guide rail 10, an expansion spring 111 is arranged on the inner wall of the T-shaped lead groove 101, close to one side of the lower case 5, of the T-shaped lead groove 101, a T-shaped slide bar 112 matched with the T-shaped lead groove 101 is arranged on the outer side wall of the limiting fixed plate 11, and the other end of the T-shaped slide bar 112 is connected with the expansion spring 111, so that the stability of the lithium battery main;

as shown in fig. 1 and 3, the top of the rectangular top frame 12 is provided with a left group of threading arc-shaped grooves 121 and a right group of threading arc-shaped grooves 121 through elastic rubber attached to the inner wall of the top of the upper shell 6, the diameter of the threading arc-shaped grooves 121 is smaller than that of the connecting wires, and the threading arc-shaped grooves 121 and the connecting wires are elastically wrapped and clamped to prevent water flow from entering along the connecting wires to cause short circuit damage to the positive and negative electrode posts 3;

as shown in fig. 1, the top of the limiting fixing plate 11 is provided with an outwards-turned arc-shaped edge, so that the lithium battery main body 1 can be conveniently placed from top to bottom without obstruction;

the lap joint of the lower shell 5 and the upper shell 6 is fixedly connected with the periphery through screws, so that the batteries can be conveniently replaced and maintained by disassembling.

Example (b): during the use, place sealing washer 4 in the low groove at lithium cell main part 1 top, cover sealed lid 2 and make the upper groove compress tightly sealing washer 4, and it is fixed with sealed lid 2 with the screw, positive and negative electrode post 3 of sealed lid 2 is fixed sealed through conical insulating rubber seal cover, put into casing 5 down with lithium cell main part 1, place in backup pad 8 lithium cell main part 1 bottom, lithium cell main part 1 is compressed tightly by spacing fixed plate 11 elasticity all around, the through wires hole 13 through last casing 6 top penetrates connecting wire again, connecting wire corresponds through threading arc wall 121 and connects positive and negative electrode post 3, cover casing 6, the top inner wall of going up casing 6 laminates with the elastic rubber and the top inner wall of last casing 6 top at 12 tops, will connect the sealed parcel of wire, it is fixed to connect all around with last casing 6 with lower casing 5 through the screw.

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

1. The utility model provides a lithium cell of waterproof leak protection liquid, includes lithium cell main part (1), its characterized in that: the lithium battery comprises a lithium battery main body (1), a sealing cover (2) is arranged at the top of the lithium battery main body (1), positive and negative electrode posts (3) are inserted into the sealing cover (2), a sealing ring (4) is arranged at the top of the lithium battery main body (1) through a lower groove with a right trapezoid cross section, an upper groove with a right trapezoid cross section matched with the top of the sealing ring (4) is arranged at the bottom of the sealing cover (2), a lower shell (5) is arranged at the outer side of the bottom of the lithium battery main body (1), an upper shell (6) is arranged at the top of the lower shell (5), a compression spring (7) is arranged on the inner wall of the bottom of the lower shell (5), a supporting plate (8) is arranged at the top of the compression spring (7), one end of the supporting plate (8) is connected with the inner walls around the lower, the inner wall all around of casing (5) is close to the top and is provided with fixed guide (10) down, be provided with spacing fixed plate (11) in fixed guide (10), the top of sealed lid (2) is provided with rectangle top frame (12), it is provided with through wires hole (13) to go up casing (6) top left and right sides, the outer wall all around of lithium cell main part (1) is provided with cross-section for isosceles trapezoid's seal frame strip (14), sealed lid (2) bottom set up to with seal frame strip (14) top complex inclined plane.

2. The lithium battery of claim 1, wherein: the through hole of the sealing cover (2) inserted with the positive and negative electrode columns (3) is provided with an insulating rubber sealing sleeve which is of a conical structure.

3. The lithium battery of claim 1, wherein: casing (5) inner wall one end is provided with T type helical pitch groove (101) under keeping away from in stationary guide (10), the inner wall that casing (5) one side was provided with expanding spring (111) under T type helical pitch groove (101) were close to, the lateral wall setting of spacing fixed plate (11) and T type helical pitch groove (101) complex T type draw runner (112), the other end and the expanding spring (111) of T type draw runner (112) are connected.

4. The lithium battery of claim 1, wherein: the top of the rectangular top frame (12) is provided with a left group of threading arc-shaped grooves and a right group of threading arc-shaped grooves (121) through elastic rubber attached to the inner wall of the top of the upper shell (6).

5. The lithium battery of claim 1, wherein: the top of the limiting fixing plate (11) is provided with an outwards-turned arc-shaped edge.

6. The lithium battery of claim 1, wherein: the periphery of the lap joint matching part of the lower shell (5) and the upper shell (6) is fixedly connected through screws.