CN215220828U

CN215220828U - Lithium ion battery pack with good heat dissipation effect

Info

Publication number: CN215220828U
Application number: CN202121271424.3U
Authority: CN
Inventors: 曹园园
Original assignee: Shenzhen Yixin Energy Technology Co ltd
Current assignee: Shenzhen Yixin Energy Technology Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-12-17
Anticipated expiration: 2031-06-08
Also published as: CN215220828U8

Abstract

The utility model discloses a lithium ion battery pack with good heat dissipation effect, which comprises a battery pack box and a box cover arranged at the upper end of the battery pack box, wherein the battery pack box comprises a box body and a battery pack arranged in the box body; lower air guide hole has been seted up to the lower extreme of box, the air guide hole has been seted up on the case lid, lower air guide hole looks sideways at with last air guide hole and is the tilt state, the beneficial effects of the utility model are that the outside air can circulate through lower air guide hole and last air guide hole, and then cool down the group battery, moreover, the steam generator is simple in structure, the battery mounting bracket can be unsettled with monomer lithium ion battery in the inside of box, the air of circulating from lower air guide hole and last air guide hole can carry out more comprehensive cooling with monomer lithium ion battery, and then improve the cooling effect of whole group battery, the interval of first firm board and second firm board slightly is greater than monomer lithium ion battery's width, can guarantee that monomer lithium ion battery is fixed on the battery mounting bracket.

Description

Lithium ion battery pack with good heat dissipation effect

Technical Field

The utility model relates to a lithium ion battery technical field specifically is a lithium ion battery group that radiating effect is good.

Background

The lithium ion power battery is a novel high-energy battery successfully developed in the 20 th century. The negative electrode of this battery is made of a material such as graphite, and the positive electrode is made of lithium iron phosphate, lithium cobaltate, lithium titanate, or the like. The 70 s were put into practical use. Because of its advantages of high energy, high battery voltage, wide working temperature range, long storage life and the like, it has been widely used in military and civil small-sized electric appliances, and in order to improve the power supply endurance of lithium ion power, a plurality of lithium ion batteries are now connected to form a lithium ion battery pack.

However, the lithium ion battery pack at present is cooled wholly when being cooled, so that the periphery of the lithium ion battery pack can be cooled well, the inner side cooling effect is poor, and the service life of the whole lithium ion battery pack is easy to reduce.

To solve the above problems. Therefore, the lithium ion battery pack with good heat dissipation effect is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium ion battery group that radiating effect is good, can circulate through air guide hole and last air guide hole down through the outside air, the air of circulation can flow around each monomer lithium ion battery, and then cools down whole group battery to the problem among the prior art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: a lithium ion battery pack with a good heat dissipation effect comprises a battery pack box and a box cover arranged at the upper end of the battery pack box, wherein the box cover is fixed at the upper end of the battery pack box through a screw, and the battery pack box comprises a box body and a battery pack arranged in the box body;

the lower end of the box body is provided with a lower air guide hole, the box cover is provided with an upper air guide hole, and the lower air guide hole and the upper air guide hole are in inclined states in side view.

Preferably, the power connection end of the battery pack is inserted into a through hole formed in one side of the box body, and the battery pack comprises a battery mounting frame and a single lithium ion battery arranged on the battery mounting frame.

Preferably, the width of the single lithium ion battery is smaller than that of the battery mounting rack, and the gap between every two adjacent battery mounting racks is 2-5 mm.

Preferably, the battery mounting bracket includes first guard plate and sets up the first fixed column in first guard plate one side, the other end of first fixed column and the inside one side fixed connection of box, and the lower extreme of first guard plate is provided with the backup pad, the other end and the second guard plate fixed connection of backup pad, and the opposite side of second guard plate is provided with the second fixed column, second fixed column and the inside opposite side fixed connection of box.

Preferably, the support plate is provided with air holes, and the distance between the support plate and the bottom surface of the inner side of the box body is 2-5 mm.

Preferably, the first fixing column and the second fixing column are the same in length and are 2-5 mm, and the battery mounting rack can suspend the single lithium ion battery in the box body in the air.

Preferably, the lower ends of the two sides of the first protection plate and the second protection plate are provided with a first stabilizing plate and a second stabilizing plate, and the distance between the first stabilizing plate and the second stabilizing plate is larger than the width of the single lithium ion battery.

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

1. the utility model provides a pair of lithium ion battery group that radiating effect is good, lower air guide hole looks sideways at with last air guide hole and is the tilt state, and the outside air can circulate through lower air guide hole and last air guide hole, and then cools down the group battery, simple structure, the cooling of being convenient for.

2. The utility model provides a pair of lithium ion battery group that radiating effect is good, battery mounting bracket can carry out more comprehensive cooling with last air guide hole circulation's air with single lithium ion battery in the unsettled inside of box from air guide hole under with in the air of air guide hole circulation, and then improve the cooling effect of whole group battery.

3. The utility model provides a pair of lithium ion battery group that radiating effect is good, the interval of first firm board and the firm board of second slightly is greater than monomer lithium ion battery's width, can guarantee that monomer lithium ion battery is fixed on the battery mounting bracket, and the bleeder vent has also been seted up to first firm board and the firm board of second, is convenient for cool down.

Drawings

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

fig. 2 is a schematic view of a three-dimensional structure of the battery pack box of the present invention;

fig. 3 is a schematic view of the overall internal plane structure of the present invention;

fig. 4 is a schematic view of the three-dimensional structure of the battery mounting bracket of the present invention.

In the figure: 1. a box cover; 11. an upper air guide hole; 2. a battery pack case; 21. a box body; 211. perforating; 212. a lower gas vent; 22. a single lithium ion battery; 23. a battery mounting bracket; 231. a first guard plate; 232. a first fixed column; 233. a support plate; 234. a second guard plate; 235. a second fixed column; 236. a first stabilizing plate; 237. a second stabilizing plate.

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, a lithium ion battery pack with a good heat dissipation effect includes a battery pack case 2 and a case cover 1 disposed at an upper end of the battery pack case 2, wherein the case cover 1 is fixed at the upper end of the battery pack case 2 by screws.

Referring to fig. 2-3, a lithium ion battery pack with good heat dissipation effect includes a battery pack case 2 including a case 21 and a battery pack disposed inside the case 21.

Lower air guide hole 212 has been seted up to the lower extreme of box 21, has seted up on case lid 1 air guide hole 11, and lower air guide hole 212 looks sideways at with last air guide hole 11 and is the tilt state, and the outside air can circulate through lower air guide hole 212 and last air guide hole 11, and then cools down the group battery, simple structure, the cooling of being convenient for.

In the perforation 211 that box 21 one side was seted up was inserted to the power connection end of group battery, the group battery includes battery mounting bracket 23 and sets up the monomer lithium ion battery 22 on battery mounting bracket 23, and the width of monomer lithium ion battery 22 is less than the width of battery mounting bracket 23, and the clearance of adjacent battery mounting bracket 23 is 2-5 millimeters, and the air of being convenient for flows between monomer lithium ion battery 22, increase cooling effect.

Referring to fig. 4, a lithium ion battery pack with good heat dissipation effect, the battery mounting bracket 23 includes a first protection plate 231 and a first fixing column 232 disposed at one side of the first protection plate 231, the other end of the first fixing column 232 is fixedly connected with one side of the inside of the box body 21, a support plate 233 is disposed at the lower end of the first protection plate 231, the support plate 233 is provided with an air vent, a distance between the support plate 233 and the inner bottom surface of the box body 21 is 2-5 mm, the other end of the support plate 233 is fixedly connected with a second protection plate 234, a second fixing column 235 is disposed at the other side of the second protection plate 234, the second fixing column 235 is fixedly connected with the other side of the inside of the box body 21, the first fixing column 232 and the second fixing column 235 have the same length, both are 2-5 mm, the battery mounting bracket 23 can suspend the single lithium ion battery 22 in the inside of the box body 21, air flowing from the lower air vent 212 and the upper air vent 11 can cool the single lithium ion battery 22 more comprehensively, thereby improving the cooling effect of the whole battery pack.

The lower ends of the two sides of the first protection plate 231 and the second protection plate 234 are provided with a first stabilizing plate 236 and a second stabilizing plate 237, the distance between the first stabilizing plate 236 and the second stabilizing plate 237 is slightly larger than the width of the single lithium ion battery 22, so that the single lithium ion battery 22 can be fixed on the battery mounting frame 23, and the first stabilizing plate 236 and the second stabilizing plate 237 are also provided with air holes, so that the cooling is facilitated.

The working principle is as follows: the external air can circulate through the lower air guide holes 212 and the upper air guide holes 11, and the circulated air can flow around each single lithium ion battery 22, so as to cool the single lithium ion battery 22, and further cool the whole battery pack.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 ion battery group that radiating effect is good, includes battery pack case (2) and case lid (1) of setting in battery pack case (2) upper end, and case lid (1) passes through the fix with screw in the upper end of battery pack case (2), its characterized in that: the battery pack box (2) comprises a box body (21) and a battery pack arranged in the box body (21);

the lower end of the box body (21) is provided with a lower air guide hole (212), the box cover (1) is provided with an upper air guide hole (11), and the lower air guide hole (212) and the upper air guide hole (11) are in inclined states in side view.

2. The lithium ion battery pack with good heat dissipation effect of claim 1, wherein: the power connection end of the battery pack is inserted into a through hole (211) formed in one side of the box body (21), and the battery pack comprises a battery mounting frame (23) and a single lithium ion battery (22) arranged on the battery mounting frame (23).

3. The lithium ion battery pack with good heat dissipation effect of claim 2, wherein: the width of the single lithium ion battery (22) is smaller than that of the battery mounting rack (23), and the gap between every two adjacent battery mounting racks (23) is 2-5 mm.

4. The lithium ion battery pack with good heat dissipation effect of claim 2, wherein: the battery mounting frame (23) comprises a first protection plate (231) and a first fixing column (232) arranged on one side of the first protection plate (231), the other end of the first fixing column (232) is fixedly connected with one side of the inside of the box body (21), a supporting plate (233) is arranged at the lower end of the first protection plate (231), the other end of the supporting plate (233) is fixedly connected with a second protection plate (234), a second fixing column (235) is arranged on the other side of the second protection plate (234), and the second fixing column (235) is fixedly connected with the other side of the inside of the box body (21).

5. The lithium ion battery pack with good heat dissipation effect of claim 4, wherein: the supporting plate (233) is provided with air holes, and the distance between the supporting plate (233) and the inner bottom surface of the box body (21) is 2-5 mm.

6. The lithium ion battery pack with good heat dissipation effect of claim 4, wherein: the first fixing column (232) and the second fixing column (235) are the same in length and are 2-5 mm in length, and the battery mounting frame (23) can suspend the single lithium ion battery (22) in the box body (21).

7. The lithium ion battery pack with good heat dissipation effect of claim 4, wherein: the lower ends of two sides of the first protection plate (231) and the second protection plate (234) are provided with a first stabilizing plate (236) and a second stabilizing plate (237), and the distance between the first stabilizing plate (236) and the second stabilizing plate (237) is larger than the width of the single lithium ion battery (22).