CN213212217U

CN213212217U - Lithium battery pack with good heat dissipation function

Info

Publication number: CN213212217U
Application number: CN202021213622.XU
Authority: CN
Inventors: 李卫松
Original assignee: Jiangsu Fuwei Energy Co ltd
Current assignee: Jiangsu Fuwei Energy Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-05-14
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a lithium cell group with good heat dissipation function. The utility model discloses a, including the main tank body, the upper surface welding of main tank body has the cross slab, the inner wall fixed mounting of cross slab has the extrusion spring, the welding of one end of extrusion spring has fixed clamping piece, the inside grafting of extrusion spring has heat conduction pole one, the side heating panel has been bonded all around to the outer wall of main tank body; the bottom outer wall welding of the main tank body has the mounting panel, the lower fixed surface of mounting panel installs the bottom box that dispels the heat, copper fin has been cup jointed to the bottom of heat conduction pole two, the bottom inner wall fixed mounting of the main tank body has the platform that absorbs heat, the one end of heat conduction pole two is passed the mounting panel with the inside of platform that absorbs heat is connected, and the inside heat extraction fan of box can in time be got rid of lithium cell monomer during operation high-efficiently at the bottom of the cooperation heat dissipation of copper fin to play the effect that reduces lithium cell monomer operating temperature.

Description

Lithium battery pack with good heat dissipation function

Technical Field

The utility model belongs to the technical field of the lithium cell, specifically be a lithium cell group with good heat dissipation function.

Background

Lithium batteries "are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a positive/negative electrode material. Lithium metal batteries were first proposed and studied by Gilbert n.lewis in 1912. In the 70 s of the 20 th century, m.s.whitetingham proposed and began to study lithium ion batteries. 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 the mainstream. 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 requirements, only a few national companies are producing such lithium metal batteries, called lithium battery packs, consisting of a plurality of lithium batteries.

However, in the using process of the lithium battery, the inside of the lithium battery body always generates more heat, if the heat cannot be timely reduced, the heat is discharged, various potential safety hazards can be brought, and even unnecessary economic loss is brought to a user.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the above-mentioned problems, a lithium battery pack having a good heat dissipation function is provided.

The utility model adopts the technical scheme as follows: a lithium battery pack with a good heat dissipation function comprises a main box body, wherein a transverse partition plate is welded on the upper surface of the main box body, an extrusion spring is fixedly installed on the inner wall of the transverse partition plate, a fixed clamping piece is welded at one end of the extrusion spring, a first heat conduction rod is inserted into the extrusion spring, the tail end of the first heat conduction rod is connected with the fixed clamping piece, and a side heat dissipation plate is bonded around the outer wall of the main box body;

the bottom outer wall welding of the main tank body has the mounting panel, the lower fixed surface of mounting panel installs box at the bottom of dispelling the heat, the top inner wall welding of box has heat conduction pole two at the bottom of dispelling the heat, copper fin has been cup jointed to the bottom of heat conduction pole two, the bottom inner wall fixed mounting of the main tank body has the platform of inhaling the heat, the one end of heat conduction pole two is passed the mounting panel with the inside of platform of inhaling the heat is connected, the bottom of box is inside to be located at the bottom of dispelling the heat copper fin below fixed mounting has fan base, fan base's top fixed mounting has the heat extraction fan, fan base's outside bonds and has the dust screen.

In a preferred embodiment, the number of the fixed clamping pieces is eight, the transverse partition plate transversely partitions the interior of the main box body into twelve single partitions, the two fixed clamping pieces are fixedly mounted on the left side and the right side of the inner wall of each partition, and a lithium battery monomer is clamped between the two fixed clamping pieces.

In a preferred embodiment, the number of the copper heat sinks is three, and the copper heat sinks are made of copper materials with good thermal conductivity through pressing.

In a preferred embodiment, the number of the fan bases is two, the fan bases are respectively fixedly installed on two sides of the heat dissipation bottom box by taking the center of the heat dissipation bottom box as a symmetric center, and two top covers are arranged outside the heat dissipation bottom box.

In a preferred embodiment, four clamping holes are formed in four corners of the top of the main box body, a top cover is placed at the top of each clamping hole, and top cover clamping blocks are welded at four corners of the top cover.

In a preferred embodiment, the bottom of the top cover is made of an insulating material, and a soft pad is arranged at a position where the bottom of the top cover is contacted with the top end of the lithium battery cell.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, the inside heat extraction fan of box at the bottom of copper fin cooperation heat dissipation can in time get rid of the heat that lithium cell monomer during operation produced high-efficiently to play the effect that reduces lithium cell monomer operating temperature, can avoid the potential safety hazard that the inside high temperature of lithium cell brought, improved the security of this main tank body.

2. The utility model discloses in, fixed clamping piece can press from both sides tightly fixedly to lithium cell monomer, prevents that lithium cell monomer from receiving to take place to sideslip when vibrating, has improved the device's stability, and the design of extrusion spring makes the main tank body can be fit for the battery use of different specifications simultaneously.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the present invention;

fig. 3 is an enlarged view of the position A in the second image of the middle rabbit of the present invention.

The labels in the figure are: the heat dissipation structure comprises a main box body 1, a heat dissipation bottom box 2, a clamping hole 3, a lithium battery monomer 4, a side heat dissipation plate 5, a transverse partition plate 6, a top cover 7, a fixing clamping piece 8, a fan base 9, a heat conduction rod I10, an extrusion spring 11, a top cover clamping block 12, a heat absorption table 13, a mounting plate 14, a heat conduction rod II 15, a copper heat dissipation plate 16, a dust screen 17 and a heat dissipation fan 18.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are 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 efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, a lithium battery pack with a good heat dissipation function comprises a main box body 1, four clamping holes 3 are formed in four corners of the top of the main box body 1, a top cover 7 is placed on the tops of the clamping holes 3, the bottom of the top cover 7 is made of an insulating material, and a soft cushion is arranged at a position where the bottom of the top cover 7 is in contact with the top end of a lithium battery monomer 4; four corner ends of the top cover 7 are welded with top cover clamping blocks 12; the upper surface of the main box body 1 is welded with a diaphragm plate 6, the inner wall of the diaphragm plate 6 is fixedly provided with an extrusion spring 11, one end of the extrusion spring 11 is welded with fixed clamping pieces 8, the number of the fixed clamping pieces 8 is eight, the diaphragm plate 6 transversely partitions the interior of the main box body 1 into twelve single partitions, the left side and the right side of the inner wall of each partition are fixedly provided with two fixed clamping pieces 8, and a lithium battery monomer 4 is clamped between the two fixed clamping pieces 8; the heat conducting rod I10 is inserted into the extrusion spring 11, the tail end of the heat conducting rod I10 is connected with the fixed clamping piece 8, the side cooling plate 5 is bonded on the periphery of the outer wall of the main box body 1, the fixed clamping piece 8 can clamp and fix the lithium battery monomer 4, the lithium battery monomer 4 is prevented from sideslipping when being vibrated, the stability of the device is improved, and meanwhile, the main box body 1 can be suitable for batteries of different specifications due to the design of the extrusion spring 11;

the bottom outer wall of the main box body 1 is welded with an installation plate 14, the lower surface of the installation plate 14 is fixedly provided with a heat dissipation bottom box 2, the top inner wall of the heat dissipation bottom box 2 is welded with a second heat conduction rod 15, the bottom of the second heat conduction rod 15 is sleeved with three copper heat dissipation fins 16, and the copper heat dissipation fins 16 are made of copper materials with good heat conductivity through pressing; a heat absorption table 13 is fixedly installed on the inner wall of the bottom of the main box body 1, one end of a second heat conduction rod 15 penetrates through an installation plate 14 to be connected with the inside of the heat absorption table 13, two fan bases 9 are fixedly installed below copper cooling fins 16 inside the bottom of the heat dissipation bottom box 2, the two fan bases 9 are fixedly installed on two sides of the heat dissipation bottom box 2 respectively by taking the center of the heat dissipation bottom box 2 as a symmetrical center, and two top covers 7 are arranged outside the heat dissipation bottom box 2; the top fixed mounting of fan base 9 has heat extraction fan 18, and fan base 9's outside bonds and has dust screen 17, and the inside heat extraction fan 18 of box 2 can in time be got rid of the heat that lithium cell 4 during operation produced high-efficiently at the bottom of the copper fin 16 cooperation heat dissipation to play the effect that reduces lithium cell 4 operating temperature, can avoid the potential safety hazard that the inside high temperature of lithium cell 4 brought, improved the security of this main tank 1.

The working principle is as follows: when the lithium battery pack with the good heat dissipation function is used, the main box body 1 can be fixed firstly, then a single lithium battery monomer 4 to be assembled is placed in a single partition formed by the partitions of the transverse partition 6, the extrusion springs 11 on the two sides of the left inner wall and the right inner wall of the transverse partition 6 can extrude the lithium battery monomer 4 together with the fixing clamping pieces 8, so that the lithium battery monomer 4 is fixed, when the lithium battery monomer 4 is in use, heat can be generated in the lithium battery monomer 4 at the moment, the heat can be dissipated into the heat dissipation bottom box 2 from the copper heat dissipation fins 16 at the bottom after being conducted by the heat absorption table 13, at the moment, the heat can be discharged to the outside through the top cover 7 by the heat dissipation fans 18 in the heat dissipation bottom box 2, meanwhile, if the outside of the main box body 1 is vibrated, the lithium battery monomer 4 can sway left and right, so as to compress the extrusion springs 11 on the left side and the right side, so as to buffer the vibration amplitude and play a role in shock absorption.

In this lithium cell group with good heat dissipation function, the inside heat extraction fan 18 of box 2 at the bottom of copper fin 16 cooperation heat dissipation can in time get rid of the heat that lithium cell 4 during operation produced high-efficiently to play the effect that reduces lithium cell 4 operating temperature, can avoid the potential safety hazard that the inside high temperature of lithium cell 4 brought, improved the security of this main tank body 1.

In this lithium cell group with good heat dissipation function, fixed clamping piece 8 can press from both sides tightly fixedly to lithium cell 4, prevents that lithium cell 4 from taking place to sideslip when receiving the shock, has improved the device's stability, and the design of extrusion spring 11 makes the main tank body 1 can be fit for the battery of different specifications to use simultaneously.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a lithium cell group with good heat dissipation function, includes main tank body (1), its characterized in that: a transverse partition plate (6) is welded on the upper surface of the main box body (1), an extrusion spring (11) is fixedly installed on the inner wall of the transverse partition plate (6), a fixed clamping piece (8) is welded at one end of the extrusion spring (11), a first heat conducting rod (10) is inserted into the extrusion spring (11), the tail end of the first heat conducting rod (10) is connected with the fixed clamping piece (8), and a side heat dissipation plate (5) is bonded on the periphery of the outer wall of the main box body (1);

the bottom outer wall welding of the main tank body (1) has mounting panel (14), box (2) at the bottom of the lower fixed surface of mounting panel (14) installs the heat dissipation, the top inner wall welding of box (2) has two (15) heat conduction poles at the bottom of the heat conduction poles, copper fin (16) have been cup jointed to the bottom of two (15) heat conduction poles, the bottom inner wall fixed mounting of the main tank body (1) has platform (13) of inhaling heat, the one end of two (15) heat conduction poles is passed mounting panel (14) with the inside of platform (13) of inhaling heat is connected, the bottom of box (2) is inside to be located at the bottom of the heat dissipation copper fin (16) below fixed mounting has fan base (9), the top fixed mounting of fan base (9) has heat extraction fan (18), the outside bonding of fan base (9) has dust screen (17).

2. The lithium battery pack with good heat dissipation function as claimed in claim 1, wherein: the quantity of fixed clamping piece (8) is eight, diaphragm (6) will the inside of main tank body (1) transversely separates into twelve single wall, and the inner wall left and right sides fixed mounting that every cuts off has fixed clamping piece (8) two, two it has lithium cell monomer (4) to press from both sides between fixed clamping piece (8).

3. The lithium battery pack with good heat dissipation function as claimed in claim 1, wherein: the number of the copper radiating fins (16) is three, and the copper radiating fins (16) are made of copper materials with good heat conductivity through tabletting.

4. The lithium battery pack with good heat dissipation function as claimed in claim 1, wherein: the fan base (9) is two in number, the center of the heat dissipation bottom box (2) is fixedly arranged on two sides of the heat dissipation bottom box (2) as a symmetric center, and two top covers (7) are arranged outside the heat dissipation bottom box (2).

5. The lithium battery pack with good heat dissipation function as claimed in claim 2, wherein: four card holes (3) have been seted up at four edges at the top of main tank body (1), top cap (7) have been placed at card hole (3) top, four edges of top cap (7) end welding have top cap fixture block (12).

6. The lithium battery pack with good heat dissipation function as claimed in claim 5, wherein: the bottom of the top cover (7) is made of an insulating material, and a soft cushion is arranged at the position where the bottom of the top cover (7) is contacted with the top end of the lithium battery single body (4).