CN213459921U

CN213459921U - Soft package lithium ion battery module with heat dissipation function

Info

Publication number: CN213459921U
Application number: CN202022822337.4U
Authority: CN
Inventors: 许长兵; 吴训交
Original assignee: Shenzhen Guoju Energy Co ltd
Current assignee: Shenzhen Guoju Energy Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-06-15
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses a soft package lithium ion battery module with heat dissipation function, including shell and cap, the shell includes two casings that are the symmetry setting, one the one end of casing is fixed with first connecting plate, the one end of first connecting plate is connected with another casing sliding, the cap includes two apron, one the one end of apron is fixed with the second connecting plate; the utility model discloses mainly be through the casing of drawing one side outward according to actual installation battery quantity, adjust the exposed length of first connecting plate between two casings, the cap comprises two laps, the cap passes through the lug and pegs graft to the upper end of shell to it is fixed with the shell through the bolt, through unscrewing fastening bolt, the exposed length of second connecting plate between two adjustable laps, be convenient for make the cap correspond the adjustment with the shell, make the casing be applicable to the installation of different quantity batteries to a certain extent.

Description

Soft package lithium ion battery module with heat dissipation function

Technical Field

The utility model relates to a lithium ion battery module technical field specifically is a soft packet of lithium ion battery module with heat dissipation function.

Background

Lithium ion batteries are mainly classified into three types, namely square, cylindrical and soft packages at present; the square and cylindrical shells mainly adopt hard shells of aluminum alloy, stainless steel and the like, the soft package lithium battery is a polymer shell on which a liquid lithium ion battery is sleeved, and is structurally packaged by an aluminum plastic film, the soft package battery can blow and crack at most under the condition of potential safety hazard, electrolyte of the soft package battery has less leakage, the soft package battery can blow and crack under the condition of potential safety hazard, and the soft package lithium battery is not exploded like a hard shell battery due to overlarge internal pressure, and the soft package lithium ion battery module is a module for combining a plurality of lithium ion batteries to form different voltages, however, most of the shell sizes of the existing lithium ion battery module are fixed, and cannot be adjusted according to the number of the mounted batteries, so that the battery module is only suitable for mounting in one size and has single function, and the problem of poor heat dissipation of the majority of lithium ion battery modules is solved, therefore, a soft package lithium ion battery module with a heat dissipation function is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a soft packet of lithium ion battery module with heat dissipation function, through the theory of operation of soft packet of lithium ion battery module, can solve because of the shell size majority of current lithium ion battery module is fixed, can't carry out the size according to the quantity of installation battery and adjust, make the battery module only be applicable to the installation of a size, the problem of function singleness and the not good problem of lithium ion battery module heat dissipation.

In order to achieve the above object, the utility model provides a following technical scheme: a soft package lithium ion battery module with a heat dissipation function comprises a shell and a shell cover, wherein the shell comprises two shells which are symmetrically arranged, one end of one shell is fixedly provided with a first connecting plate, one end of the first connecting plate is connected with the other shell in a sliding manner, the shell cover comprises two cover plates, one end of one cover plate is fixedly provided with a second connecting plate, one end of the second connecting plate is connected with the other cover plate in a sliding manner, the second connecting plate is fixed with the other cover plate through a fastening bolt, a telescopic assembly is arranged in the shell, one end of the telescopic assembly is connected with the inner wall of the shell in a sliding manner, at least three batteries are arranged on the telescopic assembly, a first heat conducting fin is movably arranged in the shell, one side of the first heat conducting fin is attached to the outer wall of each battery, and a second heat conducting fin is arranged between every two adjacent batteries, the adjacent two polarities of the batteries are connected through a connecting block, a groove is formed in the inner wall of the shell, and heat dissipation holes are formed in the inner wall of the groove.

Preferably, the telescopic assembly comprises six connecting rods, six connecting rods are arranged in a pairwise crossing manner, and the connecting rods are connected in a rotating manner and two adjacent connecting rods are connected in a rotating manner.

Preferably, two T-shaped convex blocks are arranged at two ends of the telescopic assembly and fixed on the two connecting rods, and a third sliding groove for sliding one end of each convex block is formed in the inner wall of the shell.

Preferably, the first connecting plate is arranged in a U shape, and one ends of the first connecting plate and the second connecting plate are provided with stop blocks.

Preferably, one end of the other shell is provided with a first sliding chute for sliding one end of the first connecting plate, and one end of the other cover plate is provided with a second sliding chute for sliding one end of the second connecting plate.

Preferably, one end of the second connecting plate is provided with a threaded through hole for the fastening bolt to be screwed, and one side of the second chute is provided with an opening for the fastening bolt to slide.

Preferably, the first heat-conducting fins are arranged in a U shape, the two first heat-conducting fins are symmetrically arranged, and the battery is located inside the first heat-conducting fins.

Preferably, the second heat-conducting fin is arranged in an I shape, and the outer walls of the two adjacent batteries are attached to the inner wall of the second heat-conducting fin.

Preferably, the other end of the cover plate is fixed with a limiting block, the upper end of the shell is provided with a yielding groove for inserting the limiting block, and the cover plate is fixed with the shell through a bolt.

Preferably, the heat dissipation holes are at least twenty, and at least twenty heat dissipation holes are equidistantly arranged on the side wall of the shell.

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

1. the utility model mainly comprises a shell which is composed of two shells, one side of one shell is fixed with a U-shaped first connecting plate which is connected with one end of the other shell in a sliding way, the inside of the shell is provided with a telescopic component, one end of the telescopic component is connected with the inner wall of the shell in a sliding way, the exposed length of the first connecting plate between the two shells is adjusted through the shell on the outer pulling side according to the actual quantity of the mounted batteries, the shell cover is composed of two cover plates, one end of one cover plate is fixed with a second connecting plate, one end of the second connecting plate is connected with the other cover plate in a sliding way, the second connecting plate is in threaded connection with a fastening bolt, the fastening bolt is connected with the other cover plate in a sliding way, the shell cover is inserted to the upper end of the shell through a lug, the shell cover and the shell are fixed through the bolt, the exposed length, the shell cover and the shell can be adjusted correspondingly, and the shell is suitable for mounting batteries with different quantities to a certain extent.

2. The utility model discloses inside activity at the casing is provided with first conducting strip, the internally mounted of shell has at least three battery, and be provided with the second conducting strip between two adjacent batteries, the inner wall of casing is seted up flutedly, the inner wall of recess is provided with the louvre, the outer wall of first conducting strip and second conducting strip and the one end laminating of recess, the inside air flow of recess of being convenient for, through the both ends of first conducting strip and second conducting strip with the heat transfer of battery to first conducting strip and second conducting strip, dispel the heat through the air that flows to the both ends of first conducting strip and second conducting strip, the inside thermal giveaway of shell is accelerated to a certain extent.

Drawings

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

FIG. 2 is a schematic structural view of the telescopic assembly of the present invention;

FIG. 3 is a schematic side view of the present invention;

FIG. 4 is a schematic structural view of a first heat-conducting fin of the present invention;

fig. 5 is a schematic structural view of a second heat-conducting fin of the present invention.

In the figure: 1. a housing; 2. a cover plate; 3. a first thermally conductive sheet; 4. heat dissipation holes; 5. a groove; 6. a battery; 7. a second thermally conductive sheet; 8. a telescoping assembly; 9. a bump; 10. a first connecting plate; 11. a second connecting plate; 12. a second chute; 13. fastening a bolt; 14. a stopper; 15. a limiting block; 16. a third chute; 17. a connecting rod; 18. a first chute; 19. and (4) connecting the blocks.

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. 1-5, the present invention provides a technical solution: a soft package lithium ion battery module with a heat dissipation function comprises a shell and a shell cover, wherein the shell comprises two shells 1 which are symmetrically arranged, one end of one shell 1 is fixedly provided with a first connecting plate 10, one end of the first connecting plate 10 is in sliding connection with the other shell 1, the shell cover comprises two cover plates 2, one end of one cover plate 2 is fixedly provided with a second connecting plate 11, one end of the second connecting plate 11 is in sliding connection with the other cover plate 2, the second connecting plate 11 is fixedly connected with the other cover plate 2 through a fastening bolt 13, the first connecting plate 10 is arranged in a U shape, one ends of the first connecting plate 10 and the second connecting plate 11 are respectively provided with a stop 14, one end of the other shell 1 is provided with a first sliding groove 18 for sliding of one end of the first connecting plate 10, and one end of the other cover plate 2 is provided with a second sliding groove 12 for sliding of one end of the;

one end of the second connecting plate 11 is provided with a threaded through hole for the fastening bolt 13 to be screwed, one side of the second chute 12 is provided with an opening for the fastening bolt 13 to slide, and the fastening bolt 13 is used for limiting the two adjusted cover plates 2 so as to avoid displacement between the two adjusted cover plates 2;

the telescopic assembly 8 is arranged in the shell, the telescopic assembly 8 consists of six connecting rods 17, the six connecting rods 17 are arranged in a pairwise crossing manner, the two crossing connecting rods 17 are rotatably connected, and the two adjacent connecting rods 17 are rotatably connected, so that the telescopic assembly 8 can conveniently perform telescopic operation;

two T-shaped lugs 9 are arranged at two ends of the telescopic assembly 8, the lugs 9 are fixed on two connecting rods 17, a third sliding groove 16 for one end of each lug 9 to slide is formed in the inner wall of the shell 1, the telescopic assembly 8 is used for supporting the batteries 6, and the phenomenon that the height difference between the connecting plates and the shell 1 is uneven when a plurality of batteries 6 are installed is avoided;

one end of the telescopic assembly 8 is connected with the inner wall of the shell 1 in a sliding manner, at least three batteries 6 are arranged on the telescopic assembly 8, first heat conducting fins 3 are movably arranged in the shell 1, one side of each first heat conducting fin 3 is attached to the outer wall of each battery 6, a second heat conducting fin 7 is arranged between every two adjacent batteries 6, the first heat conducting fins 3 are arranged in a U shape, the two first heat conducting fins 3 are symmetrically arranged, the batteries are located in the first heat conducting fins 3, the second heat conducting fins 7 are arranged in an I shape, the outer walls of every two adjacent batteries 6 are attached to the inner walls of the second heat conducting fins 7, the first heat conducting fins 3 and the second heat conducting fins 7 are used for transferring heat of the batteries 6 to the two ends of the heat conducting fins, and the two ends of the heat conducting fins are radiated by the heat radiation holes 4;

the polarities of two adjacent batteries 6 are connected through a connecting block 19, a groove 5 is formed in the inner wall of the shell 1, heat dissipation holes 4 are formed in the inner wall of the groove 5, at least twenty heat dissipation holes 4 are formed in the heat dissipation holes 4, at least twenty heat dissipation holes 4 are arranged in the side wall of the shell 1 at equal intervals, the outer walls of the first heat conduction sheet 3 and the second heat conduction sheet 7 are attached to one end of the groove 5, air can flow in the groove 5 conveniently, and heat dissipation is conducted on the two ends of the first heat conduction sheet 3 and the second heat conduction sheet 7 conveniently;

the other end of apron 2 is fixed with stopper 15, and casing 1's upper end is seted up and is supplied stopper 15 male groove of stepping down, and apron 2 and casing 1 pass through the bolt fastening, and the counterpoint when being convenient for apron 2 and casing 1 installation can be spacing to two casings 1 through the cap, avoids taking place to shift between two casings 1.

The working principle is as follows: according to the number of actually installed batteries, the exposed length of a first connecting plate 10 between two shells 1 is adjusted through the shell 1 on one side of the outer pull, the batteries 6 are sequentially discharged onto a telescopic assembly 8 from one side of a first heat conducting sheet 3, a second heat conducting sheet 7 is arranged between two adjacent batteries 6, a cover plate 2 is inserted into the upper end of the shell 1 through a limiting block 15, the exposed length of a second connecting plate 11 between two cover plates 2 is adjusted, a fastening bolt 13 is screwed up for limiting the two cover plates 2, the cover plates 2 and the shells 1 are fixed through bolts for limiting the displacement between the two shells 1, and the shell is suitable for installation of batteries 6 with different numbers; first conducting strip 3 is the U-shaped setting, two first conducting strips 3 are the symmetry setting, second conducting strip 7 is the I-shaped setting, the outer wall of first conducting strip 3 and second conducting strip 7 and the one end laminating of recess 5, the inside air flow of recess 5 of being convenient for, be convenient for dispel the heat to the both ends of first conducting strip 3 and second conducting strip 7, through first conducting strip 3 and second conducting strip 7 with the heat transfer of battery 6 to the both ends of first conducting strip 3 and second conducting strip 7, dispel the heat through the air that flows to the both ends of first conducting strip 3 and second conducting strip 7, accelerate the inside thermal giveaway of shell to a certain extent.

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 soft packet of lithium ion battery module with heat dissipation function, includes shell and cap, its characterized in that: the shell comprises two shells (1) which are symmetrically arranged, one end of one shell (1) is fixed with a first connecting plate (10), one end of the first connecting plate (10) is connected with the other shell (1) in a sliding manner, the shell cover comprises two cover plates (2), one end of one cover plate (2) is fixed with a second connecting plate (11), one end of the second connecting plate (11) is connected with the other cover plate (2) in a sliding manner, the second connecting plate (11) is fixed with the other cover plate (2) through a fastening bolt (13), a telescopic assembly (8) is arranged in the shell, one end of the telescopic assembly (8) is connected with the inner wall of the shell (1) in a sliding manner, at least three batteries (6) are arranged on the telescopic assembly (8), and a first heat-conducting sheet (3) is movably arranged in the shell (1), one side of first conducting strip (3) and the outer wall laminating of battery (6), and adjacent two be provided with second conducting strip (7) between battery (6), adjacent two connect through connecting block (19) between the polarity of battery (6), the inner wall of casing (1) is seted up flutedly (5), louvre (4) have been seted up to the inner wall of recess (5).

2. The soft-package lithium ion battery module with the heat dissipation function of claim 1, wherein: the telescopic assembly (8) is composed of six connecting rods (17), six connecting rods (17) are arranged in a pairwise crossing mode, the connecting rods (17) are connected in a crossing mode in a rotating mode, and the connecting rods (17) are connected in a rotating mode and in a rotating mode, and every two adjacent connecting rods (17) are connected in a rotating mode.

3. The soft-package lithium ion battery module with the heat dissipation function of claim 2, wherein: the both ends of flexible subassembly (8) are provided with lug (9) of two T shapes, lug (9) are fixed two on connecting rod (17), the gliding third spout (16) of one end that supplies lug (9) are seted up to the inner wall of casing (1).

4. The soft-package lithium ion battery module with the heat dissipation function of claim 1, wherein: the first connecting plate (10) is arranged in a U shape, and one ends of the first connecting plate (10) and the second connecting plate (11) are provided with stop blocks (14).

5. The soft-package lithium ion battery module with the heat dissipation function of claim 1, wherein: one end of the other shell (1) is provided with a first sliding groove (18) for sliding one end of the first connecting plate (10), and one end of the other cover plate (2) is provided with a second sliding groove (12) for sliding one end of the second connecting plate (11).

6. The soft-package lithium ion battery module with the heat dissipation function according to claim 5, wherein: one end of the second connecting plate (11) is provided with a threaded through hole for the fastening bolt (13) to be screwed, and one side of the second sliding groove (12) is provided with a hole for the fastening bolt (13) to slide.

7. The soft-package lithium ion battery module with the heat dissipation function of claim 1, wherein: the first heat conducting fins (3) are arranged in a U shape, the two first heat conducting fins (3) are symmetrically arranged, and the battery is located inside the first heat conducting fins (3).

8. The soft-package lithium ion battery module with the heat dissipation function according to claim 7, wherein: the second heat conducting fins (7) are arranged in an I shape, and the outer walls of the two adjacent batteries (6) are attached to the inner walls of the second heat conducting fins (7).

9. The soft-package lithium ion battery module with the heat dissipation function of claim 1, wherein: the other end of apron (2) is fixed with stopper (15), the groove of stepping down that supplies stopper (15) male is seted up to the upper end of casing (1), just apron (2) passes through the bolt fastening with casing (1).

10. The soft-package lithium ion battery module with the heat dissipation function of claim 1, wherein: the radiating holes (4) are at least twenty, and the at least twenty radiating holes (4) are equidistantly arranged on the side wall of the shell (1).