CN212323077U

CN212323077U - Lithium battery with good heat dissipation performance

Info

Publication number: CN212323077U
Application number: CN202021477197.5U
Authority: CN
Inventors: 温恒
Original assignee: Ganzhou Nuowei New Energy Co ltd
Current assignee: Ganzhou Nuowei New Energy Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-01-08
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a lithium battery with good heat dissipation performance, which comprises a lithium battery body, a shell is arranged at the outer side of the lithium battery body, a wind channel is arranged at the bottom of the inner cavity of the shell, a fan is arranged inside the wind channel, a first through hole is arranged on the surface of the shell, a semiconductor refrigerating sheet is arranged below the fan, a radiating sheet is arranged on the outer wall of the lithium battery body, heat-conducting silicone grease is coated on the lower surface of the radiating sheet, the outer side of the first through hole is connected with a dustproof mesh enclosure through a buckle, a top plate is fixedly connected with the top of the lithium battery body, and an electric socket is arranged on the upper surface of the top plate, so that the utility model can convey cooled air to the inner side of the shell through the fan, thus leading the radiating sheet to carry out heat, the radiating effect of the lithium battery body is improved, and the service life of the lithium battery body can be effectively prolonged.

Description

Lithium battery with good heat dissipation performance

Technical Field

The utility model relates to a lithium cell technical field specifically is a lithium cell that heat dispersion is good.

Background

A "lithium battery" is a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a positive/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 scientific technology, lithium batteries have become mainstream, and the lithium batteries can be roughly divided 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 countries of companies are producing such lithium metal batteries.

However, the existing lithium battery mainly has the following disadvantages:

the existing lithium battery has poor heat dissipation performance, and after the lithium battery works for a long time, high temperature generated by the lithium battery can not be dissipated timely, so that the service life of the lithium battery is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium cell that heat dispersion is good to current lithium cell self heat dispersion is not good among the solution above-mentioned background art, and after the long-time work of lithium cell, the high temperature that lithium cell self produced can not in time be scattered, thereby influences the life's of lithium cell problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lithium battery that heat dispersion is good, includes lithium cell body, the casing is installed in the lithium cell body outside, the wind channel has been seted up to casing inner chamber bottom, wind channel internally mounted has the fan, first through-hole has been seted up on the housing face, the semiconductor refrigeration piece is installed to the fan below, the fin is installed to lithium cell body outer wall, the coating of fin lower surface has heat conduction silicone grease, the first through-hole outside is connected with dustproof screen panel through the buckle, lithium cell body top fixedly connected with roof, the electrical socket has been seted up to the roof upper surface, roof surface edge symmetry is pegged graft there is the countersunk screw, roof tip below symmetry is equipped with the installation piece, the casing top is connected with the apron through the buckle, the second through-hole has been seted.

Preferably, the cushion blocks are symmetrically installed at the edge of the lower surface of the shell, and the cushion blocks are arranged, so that a gap is reserved between the bottom of the shell and the contact surface, and cooling water generated during the working of the semiconductor refrigerating sheet drips.

Preferably, the air duct penetrates through the bottom of the shell, and the semiconductor refrigeration piece is located at the bottom of the air duct, so that cooled air can enter the shell.

Preferably, connect electric socket input and lithium cell body's output electric connection, through connect electric socket and second through-hole between corresponding to make things convenient for external consumer of lithium cell body.

Preferably, installation piece fixed connection is on shells inner wall, the countersunk screw is connected with installation piece upper surface rotation, laminates mutually with installation piece upper surface through the roof to run through the roof through the countersunk screw, and the countersunk screw rotates with the installation piece and links to each other, conveniently fixes the installation of lithium cell body at the casing inboardly.

Preferably, the support plate is installed to lithium cell body bottom, support plate bottom edge symmetric welding has branch, a word hole has been seted up on the support plate surface, through having seted up a plurality of word holes on the support plate, can reduce the area of contact of lithium cell body and support plate to promote lithium cell body's radiating effect.

The utility model provides a lithium cell that heat dispersion is good possesses following beneficial effect:

(1) the utility model installs the radiating fins on the outer wall of the lithium battery body, and simultaneously, the heat-conducting silicone grease coated on the bottom of the radiating fins is attached to the outer wall of the lithium battery body, so that the heat generated by the lithium battery during working can be timely transferred to the heat dissipation sheet and electrically connected with the lithium battery body through the semiconductor refrigeration sheet and the fan, thereby the semiconductor refrigerating sheet and the fan work synchronously with the lithium battery body, the semiconductor refrigerating sheet cools the surrounding air under the action of heat transfer when working, and the cooled air is delivered to the inner side of the shell through the fan, so that the heat radiating fins carry out heat exchange, further cooling the lithium battery body, accelerating the air flow inside the shell through the first through hole, therefore, the radiating rate is accelerated, the radiating effect of the lithium battery body is improved, and the service life of the lithium battery body can be effectively prolonged.

Drawings

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

FIG. 2 is a schematic side view of the heat sink of the present invention;

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

fig. 4 is a schematic view of a top view structure of the carrier plate of the present invention.

In the figure: 1. a lithium battery body; 2. a housing; 201. cushion blocks; 202. an air duct; 203. a fan; 204. a first through hole; 205. a semiconductor refrigeration sheet; 3. a heat sink; 301. heat-conducting silicone grease; 4. a dust-proof net cover; 5. a top plate; 501. a power connection jack; 502. countersunk head screws; 503. mounting blocks; 6. a carrier plate; 601. a strut; 602. a straight hole; 7. a cover plate; 701. a second via.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: a lithium battery with good heat dissipation performance comprises a lithium battery body 1, a shell 2 is arranged on the outer side of the lithium battery body 1, an air duct 202 is arranged at the bottom of the inner cavity of the shell 2, a fan 203 is arranged in the air duct 202, the surface of the shell 2 is provided with a first through hole 204, a semiconductor refrigeration piece 205 is arranged below the fan 203, the outer wall of the lithium battery body 1 is provided with a radiating fin 3, the lower surface of the radiating fin 3 is coated with heat-conducting silicone grease 301, the outer side of the first through hole 204 is connected with a dustproof mesh enclosure 4 through a buckle, the top of the lithium battery body 1 is fixedly connected with a top plate 5, the upper surface of the top plate 5 is provided with an electric connection socket 501, countersunk head screws 502 are symmetrically inserted at the edge of the surface of the top plate 5, the mounting blocks 503 are symmetrically arranged below the end portion of the top plate 5, the top of the shell 2 is connected with a cover plate 7 through a buckle, and a second through hole 701 is formed in the surface of the cover plate 7.

By installing the heat radiating fins 3 on the outer wall of the lithium battery body 1 and simultaneously attaching the heat conducting silicone grease 301 coated on the bottom of the heat radiating fins 3 to the outer wall of the lithium battery body 1, so that the heat generated by the lithium battery 1 during operation can be transferred to the heat sink 3 in time, and is electrically connected with the lithium battery body 1 through the semiconductor refrigerating sheet 205 and the fan 203, so that the semiconductor chilling plate 205 and the fan 203 work synchronously with the lithium battery body 1, the ambient air is cooled under the action of heat transfer when the semiconductor chilling plate 205 works, and the cooled air is delivered to the inside of the case 2 by the fan 203, so that the heat radiation fins 3 perform heat exchange, and then cool off lithium cell body 1 to accelerate the inboard air flow of casing 2 through first through-hole 204, thereby accelerate radiating speed, can effectual extension lithium cell body 1's life.

Cushion 201 is installed to casing 2 lower surface edge symmetry to make and leave the clearance between casing 2 bottom and the contact surface through setting up cushion 201, and then be favorable to the cooling water drippage that semiconductor refrigeration piece 205 during operation produced.

The air duct 202 penetrates the bottom of the housing 2, and the semiconductor refrigeration sheet 205 is located at the bottom opening of the air duct 202, so that cooled air can enter the housing 2.

Connect electric socket 501 input and lithium cell body 1's output electric connection, through connect electric socket 501 and second through-hole 701 between corresponding to make things convenient for external consumer of lithium cell body 1.

The mounting block 503 is fixedly connected to the inner wall of the casing 2, the countersunk head screw 502 is rotatably connected to the upper surface of the mounting block 503, is attached to the upper surface of the mounting block 503 through the top plate 5, penetrates through the top plate 5 through the countersunk head screw 502, and is rotatably connected to the mounting block 503, so that the lithium battery body 1 is conveniently mounted and fixed on the inner side of the casing 2.

Support plate 6 is installed to lithium cell body 1 bottom, the symmetrical welding in 6 bottom edges of support plate has branch 601, a word hole 602 has been seted up on support plate 6 surface, through having seted up a plurality of word holes 602 on support plate 6, can reduce the area of contact of lithium cell body 1 and support plate 6 to promote the radiating effect of lithium cell body 1.

It should be noted that, in operation, the heat dissipation sheet 3 is installed on the outer wall of the lithium battery body 1, and the heat conductive silicone grease 301 coated on the bottom of the heat dissipation sheet 3 is attached to the outer wall of the lithium battery body 1, so that heat generated during operation of the lithium battery 1 is timely transferred to the heat dissipation sheet 3, the semiconductor refrigeration sheet 205 and the fan 203 are both electrically connected to the lithium battery body 1, so that the semiconductor refrigeration sheet 205 and the fan 203 work synchronously with the lithium battery body 1, the semiconductor refrigeration sheet 205 cools ambient air under the action of heat transfer during operation, and the cooled air is delivered to the inner side of the housing 2 through the fan 203, so that the heat dissipation sheet 3 performs heat exchange, and further cools the lithium battery body 1, and the air flow inside the housing 2 is accelerated through the first through hole 204, thereby accelerating the heat dissipation rate, the service life of the lithium battery body 1 can be effectively prolonged, the cushion blocks 201 are symmetrically arranged at the edge of the lower surface of the shell 2, a gap is reserved between the bottom of the shell 2 and a contact surface by arranging the cushion blocks 201, further, cooling water generated when the semiconductor refrigerating sheet 205 works can be favorably dripped, the air duct 202 penetrates through the bottom of the shell 2, the semiconductor refrigerating sheet 205 is positioned at the bottom opening of the air duct 202, the cooled air can be favorably introduced into the shell 2, the input end of the electric socket 501 is electrically connected with the output end of the lithium battery body 1, the electric socket 501 corresponds to the second through hole 701, thereby facilitating the external electric equipment of the lithium battery body 1, the mounting block 503 is fixedly connected on the inner wall of the shell 2, the countersunk head screw 502 is rotatably connected with the upper surface of the mounting block 503, is attached to the upper surface of the mounting block 503 through the top plate 5 and penetrates through the top plate 5 through the countersunk head, the convenience is fixed the installation of lithium cell body 1 in casing 2 inboard, and support plate 6 is installed to lithium cell body 1 bottom, and the edge symmetrical welding in support plate 6 bottom has branch 601, and a word hole 602 has been seted up on support plate 6 surface, through having seted up a plurality of word holes 602 on support plate 6, can reduce the area of contact of lithium cell body 1 and support plate 6 to promote lithium cell body 1's radiating effect.

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 that heat dispersion is good, includes lithium cell body (1), its characterized in that: the lithium battery comprises a lithium battery body (1), a shell (2) is installed on the outer side of the lithium battery body (1), an air channel (202) is formed in the bottom of an inner cavity of the shell (2), a fan (203) is installed inside the air channel (202), a first through hole (204) is formed in the surface of the shell (2), a semiconductor refrigerating sheet (205) is installed below the fan (203), a radiating fin (3) is installed on the outer wall of the lithium battery body (1), heat-conducting silicone grease (301) is coated on the lower surface of the radiating fin (3), a dustproof mesh cover (4) is connected to the outer side of the first through hole (204) through a buckle, a top plate (5) is fixedly connected to the top of the lithium battery body (1), an electric connection socket (501) is formed in the upper surface of the top plate (5), countersunk head screws (502) are symmetrically, the top of the shell (2) is connected with a cover plate (7) through a buckle, and a second through hole (701) is formed in the surface of the cover plate (7).

2. The lithium battery with good heat dissipation performance as recited in claim 1, wherein: cushion blocks (201) are symmetrically arranged at the edge of the lower surface of the shell (2).

3. The lithium battery with good heat dissipation performance as recited in claim 1, wherein: the air duct (202) penetrates through the bottom of the shell (2), and the semiconductor refrigeration piece (205) is located at the bottom of the air duct (202).

4. The lithium battery with good heat dissipation performance as recited in claim 1, wherein: the input end of the power connection socket (501) is electrically connected with the output end of the lithium battery body (1).

5. The lithium battery with good heat dissipation performance as recited in claim 1, wherein: the mounting block (503) is fixedly connected to the inner wall of the shell (2), and the countersunk head screw (502) is rotatably connected with the upper surface of the mounting block (503).

6. The lithium battery with good heat dissipation performance as recited in claim 1, wherein: support plate (6) are installed to lithium cell body (1) bottom, support plate (6) bottom edge symmetry welding has branch (601), slotted hole (602) have been seted up on support plate (6) surface.