CN217822984U

CN217822984U - Composite heat dissipation device for lithium ion battery

Info

Publication number: CN217822984U
Application number: CN202221809552.3U
Authority: CN
Inventors: 蒋丽君
Original assignee: Shenzhen Yuanyuan Electronic Technology Co ltd
Current assignee: Shenzhen Yuanyuan Electronic Technology Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-11-15
Anticipated expiration: 2032-07-14

Abstract

The utility model discloses a lithium ion battery is with compound heat abstractor, including block mechanism, protection machanism, laminating mechanism and parcel mechanism, the middle part of block mechanism is provided with protection machanism, the bottom of block mechanism is provided with laminating mechanism, and is provided with parcel mechanism above the middle part of laminating mechanism, parcel mechanism includes group battery, heat conduction silica gel pad, heat-conducting plate, fin and stopper, and the outer lane of group battery is provided with heat conduction silica gel pad, heat conduction silica gel pad's outer lane is provided with the heat-conducting plate. This lithium ion battery is with compound heat abstractor, the group battery can produce the heat when using for a long time, and the skin of group battery sets up the heat conduction silica gel pad, through heat conduction silica gel pad make heat transfer to the heat-conducting plate on the group battery, radiating fin through on the heat-conducting plate distributes away its heat, through the fan seat of box top afterwards, can make the heat of bottom fin derive through the fan seat to the heat that makes the heat-conducting plate flows out fast.

Description

Composite heat dissipation device for lithium ion battery

Technical Field

The utility model relates to a lithium ion battery technical field specifically is a lithium ion battery is with compound heat abstractor.

Background

The lithium ion battery has the advantages of long cycle life, environmental protection, no pollution, high specific energy and the like, and is widely applied to various fields such as mobile phones, new energy automobiles and the like. However, the performance of the lithium ion battery is greatly influenced by temperature, and during the use and storage processes, the reliability and the safety performance of the lithium ion battery are influenced by overhigh or overlow temperature. Therefore, it is necessary to optimize the battery thermal management structure and design the thermal management of the battery system.

Lithium ion batteries in the market can generate a large amount of heat when in use, so that the temperature of the working environment of the lithium ion batteries rises, the lithium ion batteries are mainly used for radiating heat through the outer wall of a battery box and are placed in a closed environment, so that the cooling effect is poor, the efficiency is low, the batteries are scrapped in advance before the end of the cycle life, and therefore, the composite heat radiating device for the lithium ion batteries is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium ion battery is with compound heat abstractor to the lithium ion battery who proposes in solving above-mentioned background art can produce a large amount of heats when using and make its operational environment temperature rise, and it mainly dispels the heat through the battery box outer wall, and places in more confined environment, and consequently the cooling effect is poor, and is inefficient, makes the battery not arrive the cycle life final stage, condemned problem in advance.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lithium ion battery is with compound heat abstractor, includes block mechanism, protection machanism, laminating mechanism and parcel mechanism, the middle part of block mechanism is provided with protection machanism, the bottom of block mechanism is provided with laminating mechanism, and is provided with parcel mechanism above the middle part of laminating mechanism, parcel mechanism includes group battery, heat conduction silica gel pad, heat-conducting plate, fin and stopper, and the outer lane of group battery is provided with heat conduction silica gel pad, heat conduction silica gel pad's outer lane is provided with the heat-conducting plate, and the middle part of heat-conducting plate is provided with the fin, the bottom both sides of group battery are provided with the stopper.

Further, the heat conducting plate is matched with the heat conducting silica gel pad, and the heat conducting plate is connected with the radiating fins.

Further, laminating mechanism includes bottom plate, spacing groove, draw-in groove and screw hole, and the left and right sides of bottom plate is provided with the spacing groove, the middle part both sides screw hole of bottom plate, and the end of screw hole is provided with the draw-in groove.

Furthermore, the clamping mechanism and the bottom plate form a clamping structure through a limiting groove, and the limiting groove is communicated with the threaded hole.

Further, the protection mechanism comprises heat dissipation holes and a dust screen, and the dust screen is arranged in the middle of the heat dissipation holes.

Further, block mechanism includes box, fan seat, buckle and cardboard, and the top middle part of box is provided with the fan seat, the bottom both sides of box are provided with the buckle, the middle part bottom of box is provided with the cardboard.

Furthermore, the box body is communicated with the fan seat, and the fan seat is matched with the wrapping mechanism.

Compared with the prior art, the beneficial effects of the utility model are that: this lithium ion battery is with compound heat abstractor, the group battery can produce the heat when using for a long time, and the skin of group battery sets up the heat conduction silica gel pad, through heat conduction silica gel pad make heat transfer to the heat-conducting plate on the group battery, radiating fin through on the heat-conducting plate distributes away its heat, through the fan seat of box top afterwards, can make the heat of bottom fin derive through the fan seat to the heat that makes the heat-conducting plate flows out fast.

Mutually support between heat-conducting plate and the heat conduction silica gel pad, the group battery is when long-term the use, the group battery can produce the heat, and the skin of group battery sets up round composite phase change material, composite phase change material is the heat conduction silica gel pad, can accomplish the heat transfer between the position of generating heat and radiating part position, still play simultaneously insulating, heat conduction, wait the effect, heat transfer on the messenger group battery is to the heat-conducting plate, radiating its heat away through the fin on the heat-conducting plate, ensure group battery safe handling, extension lithium ion battery's life.

Be linked together between box and the fan seat, the box is installed in the top of group battery, and the top of box is provided with the fan seat, can make the heat of bottom fin derive through the fan seat to the heat that makes the heat-conducting plate flows out fast, makes inside can not accumulate the use that the heat influences the group battery.

Block mechanism constitutes the block structure through spacing groove and bottom plate, and the setting of spacing groove is used for cooperating with the cardboard, makes the box install in the top of bottom plate to it is spacing to be convenient for cardboard and the mutual block of spacing groove, and screw hole between them aligns each other simultaneously, utilizes the bolt to carry out the rotation fixation, improves the stability, avoids at follow-up use rocking because of external factors takes place, causes the danger that drops, improves the safety protection nature of inside group battery.

Drawings

FIG. 1 is a schematic view of the detachable three-dimensional structure of the present invention;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;

fig. 3 is a schematic view of the front view internal structure of the present invention.

In the figure: 1. a clamping mechanism; 101. a box body; 102. a fan base; 103. buckling; 104. clamping a plate; 2. a protection mechanism; 201. heat dissipation holes; 202. a dust screen; 3. a fitting mechanism; 301. a base plate; 302. a limiting groove; 303. a card slot; 304. a threaded hole; 4. a wrapping mechanism; 401. a battery pack; 402. a heat-conducting silica gel pad; 403. a heat conducting plate; 404. a heat sink; 405. and a limiting block.

Detailed Description

As shown in fig. 1-2, a composite heat dissipation device for a lithium ion battery includes: the clamping mechanism 1, the middle part of the clamping mechanism 1 is provided with a protection mechanism 2, the bottom of the clamping mechanism 1 is provided with a laminating mechanism 3, the middle upper part of the laminating mechanism 3 is provided with a wrapping mechanism 4, the wrapping mechanism 4 comprises a battery pack 401 and a heat-conducting silica gel pad 402, the outer ring of the battery pack 401 is provided with the heat-conducting silica gel pad 402, the outer ring of the heat-conducting silica gel pad 402 is provided with a heat-conducting plate 403, the middle part of the heat-conducting plate 403 is provided with a radiating fin 404, two sides of the bottom end of the battery pack 401 are provided with limit blocks 405, the laminating mechanism 3 comprises a bottom plate 301, limit grooves 302, clamp grooves 303 and threaded holes 304, the left side and the right side of the bottom plate 301 are provided with the limit grooves 302, the threaded holes 304 on two sides of the middle part of the bottom plate 301 are provided with the clamp grooves 303, the clamping mechanism 1 forms a clamping structure with the bottom plate 301 through the limit grooves 302, and the limit grooves 302 are communicated with the threaded holes 304, the limiting groove 302 is arranged to be matched with the clamping plate 104, so that the box body 101 is arranged above the bottom plate 301, the clamping plate 104 and the limiting groove 302 are clamped and limited conveniently, meanwhile, threaded holes 304 of the clamping plate 104 and the limiting groove 302 are aligned, the bolt is used for rotating and fixing, the stability is improved, the danger of falling caused by shaking due to external factors in subsequent use is avoided, and the safety protection performance of the internal battery pack 401 is improved, the protection mechanism 2 comprises heat dissipation holes 201 and a dust screen 202, the dust screen 202 is arranged in the middle of the heat dissipation holes 201, the clamping mechanism 1 comprises the box body 101, a fan seat 102, a buckle 103 and the clamping plate 104, the fan seat 102 is arranged in the middle of the top end of the box body 101, the buckles 103 are arranged on two sides of the bottom end of the box body 101, the clamping plate 104 is arranged at the bottom end of the middle of the box body 101, the box body 101 is communicated with the fan seat 102, and the fan seat 102 is matched with the wrapping mechanism 4, the box 101 is installed above the battery pack 401, and the fan base 102 is disposed on the top end of the box 101, so that the heat of the bottom heat sink 404 can be conducted out through the fan base 102, and the heat of the heat conducting plate 403 can flow out quickly, and the use of the battery pack 401 is not affected by the accumulated heat.

As shown in fig. 3, a composite heat dissipation device for a lithium ion battery, the wrapping mechanism 4 further includes a heat conduction plate 403, a heat dissipation plate 404 and a limiting block 405, the heat conduction plate 403 is disposed on an outer ring of the heat conduction silicone pad 402, the heat dissipation plate 404 is disposed in the middle of the heat conduction plate 403, the limiting blocks 405 are disposed on two sides of the bottom end of the battery pack 401, the heat conduction plate 403 and the heat conduction silicone pad 402 are matched with each other, and the heat conduction plate 403 and the heat dissipation plate 404 are connected with each other, when the battery pack 401 is used for a long time, the battery pack 401 generates heat, a circle of composite phase change material is disposed on an outer layer of the battery pack 401, the composite phase change material is the heat conduction silicone pad 402, and can complete heat transfer between a heating position and a heat dissipation position, and also has the functions of insulation, heat conduction, and the like, so that the heat on the battery pack 401 is transferred to the heat conduction plate 403, the heat is dissipated by the heat dissipation plate 404 on the heat conduction plate, thereby ensuring safe use of the battery pack 401 and prolonging the service life of the lithium ion battery.

In summary, in the composite heat dissipation device for lithium ion batteries, firstly, when the battery pack 401 is used for a long time, the battery pack 401 generates heat, the outer layer of the battery pack 401 is provided with the heat-conducting silica gel pad 402, the heat on the battery pack 401 is transferred to the heat-conducting plate 403 through the heat-conducting silica gel pad 402, the heat is dissipated through the heat dissipation fins 404 on the heat-conducting plate 403, then the limiting grooves 302 on the two sides of the bottom plate 301 are arranged to be matched with the clamping plate 104, so that the box body 101 is installed above the bottom plate 301, the clamping and limiting of the clamping plate 104 and the limiting grooves 302 are facilitated, meanwhile, the threaded holes 304 of the clamping plate 104 and the limiting grooves 302 are aligned with each other, and the bolt is used for rotating and fixing, thereby avoiding the risk of falling off caused by shaking caused by external factors in subsequent use, because the box body 101 is installed above the battery pack 401, and the top end of the box body 101 is provided with the fan base 102, the heat of the bottom heat dissipation fins 404 can be led out through the fan base 102, thereby the heat of the heat-conducting plate 403 can flow out quickly, and the use of the battery pack 401 cannot be influenced by accumulated heat.

Claims

1. The utility model provides a lithium ion battery is with compound heat abstractor, includes block mechanism (1), protection machanism (2), laminating mechanism (3) and parcel mechanism (4), its characterized in that: the middle part of block mechanism (1) is provided with protection machanism (2), the bottom of block mechanism (1) is provided with laminating mechanism (3), and the middle part top of laminating mechanism (3) is provided with parcel mechanism (4), parcel mechanism (4) are including group battery (401), heat conduction silica gel pad (402), heat-conducting plate (403), fin (404) and stopper (405), and the outer lane of group battery (401) is provided with heat conduction silica gel pad (402), the outer lane of heat conduction silica gel pad (402) is provided with heat-conducting plate (403), and the middle part of heat-conducting plate (403) is provided with fin (404), the bottom both sides of group battery (401) are provided with stopper (405).

2. The composite heat dissipation device for lithium ion batteries according to claim 1, characterized in that: the heat conducting plate (403) is matched with the heat conducting silica gel pad (402), and the heat conducting plate (403) is connected with the radiating fin (404).

3. The composite heat dissipation device for lithium ion batteries according to claim 1, characterized in that: laminating mechanism (3) are including bottom plate (301), spacing groove (302), draw-in groove (303) and screw hole (304), and the left and right sides of bottom plate (301) is provided with spacing groove (302), the middle part both sides screw hole (304) of bottom plate (301), and the end of screw hole (304) is provided with draw-in groove (303).

4. The composite heat dissipation device for lithium ion batteries according to claim 3, characterized in that: the clamping mechanism (1) and the bottom plate (301) form a clamping structure through the limiting groove (302), and the limiting groove (302) is communicated with the threaded hole (304).

5. The composite heat dissipation device for lithium ion batteries according to claim 1, characterized in that: the protection mechanism (2) comprises heat dissipation holes (201) and a dust screen (202), and the dust screen (202) is arranged in the middle of each heat dissipation hole (201).

6. The composite heat dissipation device for lithium ion batteries according to claim 1, characterized in that: the clamping mechanism (1) comprises a box body (101), a fan seat (102), a buckle (103) and a clamping plate (104), the fan seat (102) is arranged in the middle of the top end of the box body (101), the buckle (103) is arranged on two sides of the bottom end of the box body (101), and the clamping plate (104) is arranged at the bottom end of the middle of the box body (101).

7. The composite heat dissipation device for a lithium ion battery of claim 6, characterized in that: the box body (101) is communicated with the fan seat (102), and the fan seat (102) is matched with the wrapping mechanism (4).