CN210489688U

CN210489688U - Box body type convection heat dissipation module of lithium battery pack

Info

Publication number: CN210489688U
Application number: CN201921787452.3U
Authority: CN
Inventors: 王希明; 艾俊杰; 彭丽娟; 陈婷
Original assignee: Weirui New Energy Co ltd
Current assignee: Weirui New Energy Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-05-08
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a lithium cell group box formula convection module, including outer box, converge chamber, semiconductor refrigeration piece and circulating air pump, the inside fixed mounting of outer box has battery body, and the heat-resisting rubber of fixedly connected with supports between the battery body, converge the chamber and set up on the outer wall of outer box, and the inside fixed mounting in chamber that just converges has the support, the semiconductor refrigeration piece is installed between the support through the pivot, and is connected with the elastic component between the tip of pivot and the support outer wall, the department is provided with the inflation chamber in the middle of converging the outer wall in chamber, and the inflation chamber with converge and be fixed with the separation net between the chamber, circulating air pump's inlet end and the end of giving vent to anger all are connected with the honeycomb duct. This box style convection module of lithium cell group through the circulation of air current, under the effect of cold air current, carries out the quick heat dissipation of lithium cell group to can not be because of the air current circulation that the expend with heat and contract with cold effect of gas caused inefficacy.

Description

Box body type convection heat dissipation module of lithium battery pack

Technical Field

The utility model relates to a lithium cell group correlation technique field specifically is a box formula convection module of lithium cell group.

Background

Lithium cell group a novel and electric energy storage device promoted on a large scale, through the storage to the electric energy, the artificial portable use to electric energy power of being convenient for improves the availability factor of electric energy, reaches anytime and anywhere charge and discharge's function application, and at the replay process of electric energy, lithium cell group can produce the heat, in order to improve the life of lithium cell, need carry out the thermal treatment protection in its installation and use position department.

However, the existing box-type convection heat dissipation module of the lithium battery pack has the following problems in use:

the circulating radiating efficiency to the lithium cell is not high, and in the work of lithium cell, it is high to collect remaining heat in appearance, influences the normal use of lithium cell, and long-term the use causes the inner structure heat loss of lithium cell easily, influences its life. In order to solve the problems, innovative design is urgently needed on the basis of the original box type convection heat dissipation module of the lithium battery pack.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a box body formula convection module of lithium cell group to solve above-mentioned background art and propose current box body formula convection module of lithium cell not high to the circulating radiating efficiency of lithium cell, in the work of lithium cell, it collects remaining heat height in appearance, influences the normal use of lithium cell, long-term the use, causes the inner structure heat waste of lithium cell easily, influences its life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a box type convection heat dissipation module of a lithium battery pack comprises an outer box body, a converging cavity, a semiconductor refrigeration sheet and a circulating air pump, the inner part of the outer box body is fixedly provided with battery bodies, and a heat-resistant rubber support is fixedly connected between the battery bodies, and the outer side of the battery body in the outer box body is provided with a drainage tube, the converging cavity is arranged on the outer wall of the outer box body, and the interior of the confluence cavity is fixedly provided with a bracket, the semiconductor refrigeration piece is arranged between the brackets through a rotating shaft, an elastic piece is connected between the end part of the rotating shaft and the outer wall of the bracket, an expansion cavity is arranged in the middle of the outer wall of the confluence cavity, an isolation net is fixed between the expansion cavity and the confluence cavity, and be provided with the air bag on the inflation chamber, the connecting piece is installed at the top in confluence chamber moreover, the inlet end of circulating air pump all is connected with the honeycomb duct with the end of giving vent to anger, and circulating air pump passes through honeycomb duct and connecting piece interconnect.

Preferably, the battery bodies are uniformly distributed at equal intervals, and the outer walls of the battery bodies and the outer wall of the drainage tube are mutually attached and connected.

Preferably, the drainage tube is arranged in a winding structure, and the end part of the drainage tube is communicated with the inside of the confluence cavity.

Preferably, the semiconductor refrigeration pieces are uniformly distributed among the supports at equal intervals, the semiconductor refrigeration pieces are rotatably connected with the supports through rotating shafts, and the rotating shafts are connected with the supports through bearings.

Preferably, the internal volume of the expansion cavity is not less than the internal volume of the confluence cavity, the expansion cavity and the confluence cavity are arranged in a penetrating manner, and the expansion cavity and the airbag are fixedly connected in a sealing manner.

Preferably, a dismounting and mounting structure in threaded connection is arranged between the connecting piece and the flow guide pipe, and the connecting piece and the flow converging cavity are arranged in a welded manner and are communicated with each other.

Compared with the prior art, the beneficial effects of the utility model are that: according to the box type convection heat dissipation module of the lithium battery pack, the lithium battery pack is quickly cooled under the action of cold airflow through the circulation of the airflow, and the circulation failure of the airflow caused by the expansion and contraction effect of the air is avoided;

1. only through the use of a circulating air pump, the flow guide pipe, the confluence cavity and the flow guide pipe jointly form a gas circulating system, so that cold air flow in the confluence cavity directly cools the outer surface of the battery body, the cooling effect of the lithium battery pack is improved, and meanwhile, the air bag on the expansion cavity is arranged, so that the pressure in the confluence cavity is kept stable when the gas expands with heat and contracts with cold;

2. because of the semiconductor refrigeration piece that pivot and support rotate to be connected, can take place repeated upset motion when promoting because of the air current to reset after the air current finishes, make the installation of semiconductor refrigeration piece more steady, it is high to deposit the year limit when using, and the difficult junction that appears is impaired.

Drawings

FIG. 1 is a schematic front view of the present invention;

fig. 2 is a schematic view of the installation structure of the semiconductor refrigeration sheet of the present invention;

fig. 3 is a schematic view of the connection structure of the connecting member and the flow guide tube of the present invention.

In the figure: 1. an outer case; 2. a battery body; 3. a heat-resistant rubber support; 4. a drainage tube; 5. a manifold chamber; 6. a support; 7. a semiconductor refrigeration sheet; 8. a rotating shaft; 9. an elastic member; 10. an expansion chamber; 11. an isolation net; 12. an air bag; 13. a connecting member; 14. a circulating air pump; 15. and a flow guide pipe.

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. 1-3, the present invention provides a technical solution: a box type convection heat dissipation module of a lithium battery pack comprises an outer box body 1, a battery body 2, a heat-resistant rubber support 3, a drainage tube 4, a confluence cavity 5, a bracket 6, a semiconductor refrigeration sheet 7, a rotating shaft 8, an elastic piece 9, an expansion cavity 10, a separation net 11, an air bag 12, a connecting piece 13, a circulating air pump 14 and a flow guide tube 15, wherein the battery body 2 is fixedly arranged inside the outer box body 1, the heat-resistant rubber support 3 is fixedly connected between the battery bodies 2, the drainage tube 4 is arranged outside the battery body 2 in the outer box body 1, the confluence cavity 5 is arranged on the outer wall of the outer box body 1, the bracket 6 is fixedly arranged inside the confluence cavity 5, the semiconductor refrigeration sheet 7 is arranged between the brackets 6 through the rotating shaft 8, the elastic piece 9 is connected between the end part of the rotating shaft 8 and the outer wall of the bracket 6, the expansion cavity 10 is arranged in the middle of the outer wall of the confluence cavity 5, and the, and the expansion chamber 10 is provided with an air bag 12, the top of the converging chamber 5 is provided with a connecting piece 13, the air inlet end and the air outlet end of the circulating air pump 14 are both connected with a guide pipe 15, and the circulating air pump 14 is mutually connected with the connecting piece 13 through the guide pipe 15.

Battery body 2 equidistant evenly distributed, and laminate each other between the outer wall of battery body 2 and the outer wall of drainage tube 4 and be connected, drainage tube 4 is the setting of wriggling column structure, and the interconnect for lining up between the tip of drainage tube 4 and the inside of converging chamber 5, and the battery body 2's of being convenient for installation location uses the radiating effect who provides battery body 2 through the installation of drainage tube 4.

Semiconductor refrigeration piece 7 is equidistant evenly distributed between support 6, and semiconductor refrigeration piece 7 rotates through pivot 8 and support 6 to be connected, and the bearing is connected between pivot 8 and the support 6, makes semiconductor refrigeration piece 7 when the installation is used, is difficult for causing the not hard up damage of semiconductor refrigeration piece 7 installation because of the promotion of air current.

The internal volume of the expansion cavity 10 is not less than the internal volume of the confluence cavity 5, the expansion cavity 10 and the confluence cavity 5 are communicated, and the expansion cavity 10 and the airbag 12 are fixedly connected in a sealing manner, so that the expansion cavity 10 and the confluence cavity 5 cannot cause too large internal pressure change of the confluence cavity 5 when the expansion is heated and the contraction is cooled, and the circular heat dissipation of the airflow is influenced.

The connecting piece 13 and the flow guide pipe 15 are in threaded connection, and the connecting piece 13 and the flow convergence cavity 5 are in welded internal communication, so that the connecting piece 13 and the flow guide pipe 15 can be conveniently detached.

The working principle is as follows: when the box type convection heat dissipation module of the lithium battery pack is used, firstly, as shown in fig. 1, the circulating pump 14 is started to drive the gas in the flow guide pipe 15, the flow converging cavity 5 and the flow guide pipe 4 to circulate, and the semiconductor refrigeration sheet 7 is opened to refrigerate the gas in the flow converging cavity 5, so that when the cold gas in the flow converging cavity 5 circulates in the flow guide pipe 15 and the flow guide pipe 4, the external surface of the battery body 2 is directly cooled, the refrigeration effect of the battery body 2 is improved, and meanwhile, when the gas in the flow converging cavity 5 and the flow guide pipe 4 expands with heat and contracts with cold, the gas bag 12 arranged on the expansion cavity 10 can contract or expand, so that the internal pressure of the expansion cavity 10 and the flow converging cavity 5 is kept stable, and the internal pressure change of the flow converging cavity 5 is avoided, and the circulating circulation of the gas;

according to fig. 2, when taking place the air current circulation in the chamber 5 that converges, the air current blows semiconductor refrigeration piece 7, can make semiconductor refrigeration piece 7 do relative rotary motion with support 6 under the 8 linkage of pivot, change the state of depositing of semiconductor refrigeration piece 7, and elastic component 9 carries out the reseing after the motion of semiconductor refrigeration piece 7, avoid semiconductor refrigeration piece 7 to blow down for a long time, rigidity looseness and destruction take place for its hookup location department, shorten the installation life of semiconductor refrigeration piece 7, threaded connection between honeycomb duct 15 and the connecting piece 13 simultaneously as shown in fig. 3, be convenient for honeycomb duct 15 and connecting piece 13's dismouting.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a lithium cell group box formula convection module, includes outer box (1), converges chamber (5), semiconductor refrigeration piece (7) and circulating air pump (14), its characterized in that: the battery comprises an outer box body (1), a battery body (2) is fixedly mounted in the outer box body (1), a heat-resistant rubber support (3) is fixedly connected between the battery bodies (2), a drainage tube (4) is arranged on the outer side of the battery body (2) in the outer box body (1), a converging cavity (5) is arranged on the outer wall of the outer box body (1), a support (6) is fixedly mounted in the converging cavity (5), a semiconductor refrigerating sheet (7) is mounted between the supports (6) through a rotating shaft (8), an elastic part (9) is connected between the end part of the rotating shaft (8) and the outer wall of the support (6), an expansion cavity (10) is arranged in the middle of the outer wall of the converging cavity (5), a separation net (11) is fixed between the expansion cavity (10) and the converging cavity (5), an air bag (12) is arranged on the expansion cavity (10), and a connecting piece (13) is mounted at the top of the converging cavity, the air inlet end and the air outlet end of the circulating air pump (14) are both connected with a guide pipe (15), and the circulating air pump (14) is connected with the connecting piece (13) through the guide pipe (15).

2. The lithium battery pack box type convection heat dissipation module of claim 1, wherein: the battery bodies (2) are uniformly distributed at equal intervals, and the outer walls of the battery bodies (2) and the outer wall of the drainage tube (4) are mutually attached and connected.

3. The lithium battery pack box type convection heat dissipation module of claim 1, wherein: the drainage tube (4) is arranged in a winding structure, and the end part of the drainage tube (4) is communicated with the inside of the confluence cavity (5).

4. The lithium battery pack box type convection heat dissipation module of claim 1, wherein: semiconductor refrigeration piece (7) equidistant evenly distributed between support (6), and semiconductor refrigeration piece (7) rotate with support (6) through pivot (8) and are connected to bearing connection between pivot (8) and support (6).

5. The lithium battery pack box type convection heat dissipation module of claim 1, wherein: the internal volume of the expansion cavity (10) is not less than the internal volume of the confluence cavity (5), the expansion cavity (10) and the confluence cavity (5) are communicated, and the expansion cavity (10) is fixedly connected with the airbag (12) in a sealing manner.

6. The lithium battery pack box type convection heat dissipation module of claim 1, wherein: the connecting piece (13) and the flow guide pipe (15) are arranged to be in threaded connection, and the connecting piece (13) and the flow converging cavity (5) are arranged in a welded mode, wherein the inner portions of the connecting piece and the flow guide pipe are communicated.