CN221552001U

CN221552001U - Lithium battery with radiating fins

Info

Publication number: CN221552001U
Application number: CN202323551722.XU
Authority: CN
Inventors: 龙希罕
Original assignee: Guangdong Bolong Energy Technology Co ltd
Current assignee: Guangdong Bolong Energy Technology Co ltd
Priority date: 2023-12-26
Filing date: 2023-12-26
Publication date: 2024-08-16
Anticipated expiration: 2033-12-26

Abstract

The utility model relates to the technical field of heat dissipation of lithium batteries, and discloses a lithium battery with heat dissipation fins, which comprises a plurality of lithium battery blocks arranged in module boxes, wherein heat dissipation blocks are fixedly connected between every two adjacent lithium battery blocks, heat conduction fins are connected between every two adjacent module boxes, mounting grooves matched with the heat dissipation blocks are formed in the two sides of each module box in a penetrating manner, heat conduction strips are connected in the mounting grooves, one sides of each heat conduction strip are respectively connected with the adjacent heat dissipation blocks, the other sides of the heat conduction strips are respectively connected with the adjacent heat conduction fins, one sides of each heat conduction plate are fixedly connected with heat conduction plates, and one sides of the heat conduction plates far away from the heat conduction fins are fixedly connected with the heat dissipation fins. This kind of lithium cell with radiating fin, through radiating block and heat conduction strip, can derive the heat of the inside lithium cell piece of module box to distribute the heat through conducting strip, heat-conducting plate and a plurality of fin, thereby improve the radiating effect of the interior lithium cell piece of module box.

Description

Lithium battery with radiating fins

Technical Field

The utility model relates to the technical field of heat dissipation of lithium batteries, in particular to a lithium battery with heat dissipation fins.

Background

In the field of energy sources at present, a lithium battery is becoming a mainstream energy storage form by virtue of the characteristics of high efficiency, environmental protection, portability and the like. However, with rapid development of application fields such as electric automobiles, electric energy storage, unmanned aerial vehicles and the like, requirements on performance of lithium batteries are also continuously improved. How to effectively control the temperature of the lithium battery in the working process, prevent overheating and improve the safety and stability of the lithium battery is needed to be solved in the industry.

The bulletin number is: CN219696536U discloses an air-cooled heat dissipation auxiliary structure for a lithium battery module, which comprises at least one phase-change heat transfer device and at least one fin, wherein one end of the phase-change heat transfer device is attached to the bottom of the lithium battery module through a filling material with heat conduction properties, the other end of the phase-change heat transfer device is attached to the bottom of the fin through a filling material with heat conduction properties, and a runner of the fin is opposite to an air duct. The heat exchange efficiency of the lithium battery module is improved;

However, the heat dissipation structure of the lithium battery in the above technology still has the following problems:

because the battery module is formed by mutually welding a plurality of lithium battery blocks and sleeving a module shell on the outer layers of the plurality of welded lithium battery blocks, when the lithium battery module heats, the lithium battery block heats firstly, and then heat is led into the outer side through the module shell, so that a heat dissipation structure is arranged on the outer side of the lithium battery module, and the effect of timely heat dissipation on the heating of the internal lithium battery block cannot be achieved.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a lithium battery with radiating fins, such as: and a heat conducting piece is arranged between the internal lithium battery blocks, so that the heat of the lithium battery blocks is directly conducted out, the lithium battery blocks are better subjected to heat dissipation protection, and the service life of the lithium battery blocks is prolonged.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lithium cell with radiating fin, including installing a plurality of lithium cell pieces in the module box, adjacent two equal fixedly connected with radiating block between the lithium cell piece, all be connected with the conducting strip between two adjacent module boxes, the mounting groove that matches with the radiating block has all been run through to the both sides of a plurality of module boxes, all be connected with the heat conduction strip in a plurality of mounting grooves, one side of a plurality of heat conduction strips is connected with adjacent radiating block respectively, the opposite side is connected with adjacent conducting strip respectively, one side fixedly connected with heat conduction plate of a plurality of heat conduction strips, one side fixedly connected with a plurality of radiating strips of a plurality of heat conduction plate is kept away from to the heat conduction plate.

Further, a plurality of evenly arranged cooling fans are fixedly connected to one side, close to the cooling fins, of the heat conducting plate, and the cooling fans are located at the same end of the cooling fins.

Further, the plurality of cooling fans and the plurality of cooling fins are vertically distributed.

Further, one side of each of the plurality of mounting grooves, which is close to the heat conducting plate, is arranged in a penetrating manner, one side of each of the plurality of heat conducting strips is fixedly connected with the adjacent heat conducting fin, the other side of each of the plurality of heat conducting strips is connected with the adjacent heat radiating block in a sliding manner, and each of the plurality of heat conducting strips is connected with the plurality of mounting grooves in a sliding manner.

Further, one side of the plurality of heat conducting fins, which is far away from the heat conducting plate, is connected with a U-shaped fixing plate, two ends of the U-shaped fixing plate are respectively fixedly connected with two heat conducting fins at the outermost side through bolts, and one side inner wall of the U-shaped fixing plate, which is close to the heat conducting plate, is propped against one side outer wall of the plurality of module boxes, which is far away from the heat conducting plate.

Further, the height of the module box is not lower than the height of the heat conducting fin.

Compared with the prior art, the utility model has the following beneficial effects:

This kind of lithium cell with radiating fin, through radiating block and heat conduction strip, can derive the heat of the inside lithium cell piece of module box to distribute the heat through conducting strip, heat-conducting plate and a plurality of fin, thereby improve the radiating effect of the interior lithium cell piece of module box.

Drawings

FIG. 1 is a schematic view of the overall appearance connection structure of the present utility model;

FIG. 2 is a schematic view of another angular overall appearance connection structure according to the present utility model;

FIG. 3 is an exploded view of the connection structure based on FIG. 1;

FIG. 4 is an exploded view of a portion of the connection structure based on FIG. 3;

FIG. 5 is a schematic cross-sectional view of a connection structure of the module case of the present utility model.

In the figure: 1. a module box; 2. a lithium battery block; 3. a heat conductive sheet; 4. a heat conductive plate; 5. a heat sink; 6. a U-shaped fixing plate; 21. a heat dissipation block; 31. a heat conducting strip; 41. a heat radiation fan; 101. and a mounting groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-5, a lithium battery with heat dissipation fins includes a plurality of lithium battery blocks 2 installed in a module case 1, wherein heat dissipation blocks 21 are fixedly connected between two adjacent lithium battery blocks 2, heat dissipation fins 3 are connected between two adjacent module cases 1, mounting grooves 101 matched with the heat dissipation blocks 21 are formed in two sides of the module cases 1, heat conduction strips 31 are connected in the mounting grooves 101, one sides of the heat conduction strips 31 are respectively connected with the adjacent heat dissipation blocks 21, the other sides of the heat conduction strips 31 are respectively connected with the adjacent heat dissipation fins 3, one sides of the heat conduction fins 3 are fixedly connected with heat conduction plates 4, and one sides of the heat conduction plates 4 far away from the heat dissipation fins 3 are fixedly connected with heat dissipation fins 5.

As shown in fig. 1 to 5, a lithium battery with heat dissipation fins in the present utility model is similar to the existing lithium battery with heat dissipation fins in structure, such as an air-cooled heat dissipation auxiliary structure for a lithium battery module disclosed in the patent with publication number CN219696536U, and the main improvement point of the present utility model is that the heat of the lithium battery block 2 in the module case 1 can be better dissipated, so as to improve the service life of the lithium battery block 2, and as shown in fig. 1 to 5, when the lithium battery with heat dissipation fins in the present utility model is used, when the lithium battery block 2 in the module case 1 heats, the heat is led into the heat conducting strips 31 on both sides through the heat dissipation block 21, and then is led into the heat conducting strips 3 through the heat conducting strips 31, and finally, the heat of the plurality of heat conducting strips 3 is continuously led into the heat conducting plate 4 and is diffused into the plurality of heat dissipation plates 5, so that the heat of the lithium battery block 2 cannot be rapidly dissipated in the module case 1, the heat dissipation efficiency of the lithium battery block 2 is improved, and the service life of the lithium battery block 2 is improved.

As shown in fig. 1-4, a plurality of uniformly arranged cooling fans 41 are fixedly connected to one side of the heat conducting plate 4, which is close to the plurality of cooling fins 5, and the plurality of cooling fans 41 are all located at the same end of the plurality of cooling fins 5. When the heat of the lithium battery block 2 is conducted into the plurality of cooling fins 5, the cooling efficiency of the cooling fins 5 can be accelerated by the air outlet of the plurality of cooling fans 41.

As shown in fig. 1-4, the plurality of heat dissipation fans 41 are vertically distributed with the plurality of heat dissipation fins 5. When the cooling fans 41 are vertically distributed with the cooling fins 5, air can circulate through the gaps among the cooling fins 5 when the cooling fans 41 blow air, so that the cooling effect of the cooling fins 5 is improved.

As shown in fig. 4, the installation grooves 101 are all formed through the heat conducting plate 4 on one side, and the heat conducting strips 31 are fixedly connected with the adjacent heat conducting strips 3 on one side and are slidably connected with the adjacent heat dissipating blocks 21 on the other side, and the heat conducting strips 31 are slidably connected with the installation grooves 101. One side of the mounting groove 101, which is close to the heat conducting plate 4, is designed as a through hole, so that the module box 1 provided with the lithium battery block 2 is conveniently and directly inserted between the two heat conducting strips 3, and the heat conducting strips 31 are in contact with the heat radiating blocks 21 on the lithium battery block 2, so that the heat radiation can be smoothly ensured while the installation is convenient. Sealing rubber strips can be filled between the module box 1 and the heat conducting strip 31 and between the module box 1 and the heat conducting strip 3, so that the sealing performance of the lithium battery block 2 in the module box 1 is improved.

As shown in fig. 1-3, a U-shaped fixing plate 6 is connected to one side of the plurality of heat conducting strips 3 away from the heat conducting plate 4, two ends of the U-shaped fixing plate 6 are respectively and fixedly connected with two heat conducting strips 3 at the outermost side through bolts, and an inner wall of one side of the U-shaped fixing plate 6 close to the heat conducting plate 4 is abutted against an outer wall of one side of the plurality of module boxes 1 away from the heat conducting plate 4. After the module case 1 is mounted on the heat conductive plate 4, a plurality of module cases 1 can be fixed by the U-shaped fixing plate 6, thereby avoiding detachment between the module case 1 and the heat conductive sheet 3.

As shown in fig. 1 to 5, the height of the module case 1 is not lower than the height of the heat conductive sheet 3. The height of the module box 1 is not lower than the height of the heat conducting fin 3, so that the U-shaped fixing plate 6 can ensure that the module box 1 can be propped against the heat conducting plate 4, and the connection firmness among the module box 1, the heat conducting fin 3 and the heat conducting plate 4 is improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lithium battery with radiating fin, includes a plurality of lithium cell pieces (2) of installing in module box (1), its characterized in that: two adjacent equal fixedly connected with radiating block (21) between lithium cell piece (2), all be connected with conducting strip (3) between two adjacent module boxes (1), mounting groove (101) that match with radiating block (21) have all been run through to the both sides of a plurality of module boxes (1), all be connected with heat conduction strip (31) in a plurality of mounting grooves (101), one side of a plurality of heat conduction strips (31) is connected with adjacent radiating block (21) respectively, the opposite side is connected with adjacent conducting strip (3) respectively, one side fixedly connected with heat-conducting plate (4) of a plurality of heat-conducting strips (3), one side fixedly connected with a plurality of fin (5) of a plurality of heat-conducting strips (3) are kept away from to heat-conducting plate (4).

2. A lithium battery with heat dissipation fins according to claim 1, wherein: one side of the heat conducting plate (4) close to the radiating fins (5) is fixedly connected with a plurality of radiating fans (41) which are uniformly arranged, and the radiating fans (41) are all positioned at the same end of the radiating fins (5).

3. A lithium battery with heat dissipation fins according to claim 2, wherein: the plurality of radiating fans (41) and the plurality of radiating fins (5) are vertically distributed.

4. A lithium battery with heat dissipation fins according to claim 1, 2 or 3, characterized in that: one side of each of the plurality of installation grooves (101) close to the heat conducting plate (4) is in penetrating arrangement, one side of each of the plurality of heat conducting strips (31) is fixedly connected with the adjacent heat conducting fin (3) respectively, the other side of each of the plurality of heat conducting strips is connected with the adjacent heat radiating block (21) in a sliding mode, and each of the plurality of heat conducting strips (31) is connected with the plurality of installation grooves (101) in a sliding mode.

5. A lithium battery with heat dissipation fins according to claim 1, 2 or 3, characterized in that: one side of each heat conducting fin (3) far away from each heat conducting plate (4) is connected with a U-shaped fixing plate (6), two ends of each U-shaped fixing plate (6) are fixedly connected with two heat conducting fins (3) at the outermost side through bolts, and one side inner wall of each U-shaped fixing plate (6) close to each heat conducting plate (4) abuts against one side outer wall of each module box (1) far away from each heat conducting plate (4).

6. A lithium battery with heat sink fins as defined in claim 5, wherein: the height of the module box (1) is not lower than the height of the heat conducting fin (3).