CN215418317U - Lithium battery pack cooling device based on drainage distributed fluid - Google Patents
Lithium battery pack cooling device based on drainage distributed fluid Download PDFInfo
- Publication number
- CN215418317U CN215418317U CN202121499079.9U CN202121499079U CN215418317U CN 215418317 U CN215418317 U CN 215418317U CN 202121499079 U CN202121499079 U CN 202121499079U CN 215418317 U CN215418317 U CN 215418317U
- Authority
- CN
- China
- Prior art keywords
- cooling
- lithium battery
- drainage
- battery pack
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a lithium battery pack cooling device based on drainage dispersion fluid, which comprises an external shell, lithium battery units, a drainage plate and a fixing plate, wherein the external shell is provided with a plurality of drainage holes; a cooling cavity is formed inside the outer shell, and cooling liquid is filled in the cooling cavity; the drainage plate, the lithium battery unit and the fixing plate are sequentially arranged in the cooling cavity from top to bottom, a plurality of water inlet pipes are arranged at the top of the external shell, and a plurality of water outlet pipes are arranged at the bottom of the side wall of the external shell; simple structure improves the radiating efficiency of lithium cell, and cylindrical hole on the drainage plate makes the coolant liquid dispersion, and the volume of flowing through is the biggest in the middle of the follow group battery, and the volume of flowing through all around from the group battery outwards reduces in proper order, improves the radiating efficiency at lithium cell group center.
Description
Technical Field
The utility model relates to the technical field of lithium battery thermal management, in particular to a lithium battery pack cooling device based on drainage dispersion fluid.
Background
At present, the lack and the large consumption of non-renewable resources such as petroleum and the like cause huge pollution to the environment and huge burden of the country. The national requirements on energy conservation and emission reduction are continuously improved, a new carbon neutralization plan is proposed, and the public environmental awareness is continuously developed. The new energy automobile can effectively reduce carbon emission as a new transportation tool, so the development prospect of the new energy automobile is wide. The current new energy automobile faces a big problem of effectively improving the endurance condition, wherein the heat dissipation of the lithium battery is an extremely important ring.
At present, some researches have been made by related technicians in the field, such as combining the parallel flow flat tube with a liquid cooling mode to further improve the heat dissipation efficiency and the temperature uniformity of the battery, and the defects are that the cooling device is complex and occupies a large volume, and when the cooling liquid flows through the parallel flow flat tube, the liquid fluidity at the bottom of the single parallel flow flat tube is poor, so that the flowing consistency of the cooling liquid cannot be ensured, and the uniformity of a temperature field in the battery pack is further influenced; such as by combination of immersion cooling and heat pipe cooling, further increases the cooling efficiency. The disadvantages are that the heat transmission between the immersion liquid and the heat pipe needs more time and the problem of overhigh central temperature of the battery pack cannot be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lithium battery pack cooling device based on drainage dispersion type fluid aiming at the defects in the prior art.
The technical scheme for solving the problems comprises the following steps: a lithium battery pack cooling device based on drainage dispersion fluid comprises an external shell, lithium battery units, a drainage plate and a fixing plate;
a cooling cavity is formed inside the outer shell, and cooling liquid is filled in the cooling cavity;
the drainage plate, the lithium battery unit and the fixing plate are sequentially arranged in the cooling cavity from top to bottom, a plurality of water inlet pipes are arranged at the top of the external shell, and a plurality of water outlet pipes are arranged at the bottom of the side wall of the external shell;
the fixing plate is placed on the bottom plate of the outer shell, a plurality of mounting grooves for mounting lithium batteries are uniformly arranged on the fixing plate at equal intervals, the lithium battery unit comprises a plurality of lithium batteries, and the lithium batteries are mounted in the mounting grooves;
honeycomb cylindrical holes are distributed on the drainage plate.
Furthermore, a plurality of lithium batteries are arranged in a rectangular array.
Furthermore, the middle part of the cylindrical hole on the drainage plate has high density, and the edge of the cylindrical hole on the drainage plate has low density.
Furthermore, the drainage plate is an acrylic plate.
Further, the outer housing includes a cooling cover, a cooling base, and a cooling base.
Furthermore, be equipped with 3 inlet tubes on the cooling cover plate, 3 inlet tubes evenly distributed are on the central line of cooling lid.
Furthermore, be equipped with 2 outlet pipes on the lateral wall of cooling base member, 2 outlet pipes symmetry sets up on the lateral wall around the cooling base member.
The utility model has the following beneficial effects:
the utility model provides a lithium battery pack cooling device based on drainage dispersion type fluid, which is simple in structure and capable of improving the heat dissipation efficiency of a lithium battery, wherein the cylindrical holes in the drainage plate enable cooling liquid to be dispersed, the amount of the cooling liquid flowing through the middle of the battery pack is the largest, the amount of the cooling liquid flowing through the periphery of the battery pack is sequentially reduced from inside to outside, and the heat dissipation efficiency of the center of the lithium battery pack is improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
in the figure: 1-cooling cover, 2-cooling base, 3-cooling base, 4-water inlet pipe, 5-water outlet pipe, 6-drainage plate, 7-lithium battery unit, 8-fixing plate, 9-cylindrical hole and 10-mounting groove.
Detailed Description
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1 and 2, a lithium battery pack cooling device based on dispersion fluid drainage comprises an external shell, lithium battery cells 7, a drainage plate 6 and a fixing plate 8;
the outside casing includes cooling cover 1, cooling base 2 and cooling base member 3, cooling cover 1 and cooling base 2 welded connection respectively are at the upper end and the lower extreme of cooling base member 3, cooling cover 1, cooling base 2 are the cuboid shape, adopt stainless steel material to make in order to improve the radiating efficiency, and its marginal portion can imbed cooling base member 3 just and seal welding, forms the cooling chamber. 3 water inlet pipes 4 are uniformly arranged on the cooling cover 1 at equal intervals, and 2 water outlet pipes 5 are arranged on the side wall of the cooling base body 3; the cooling liquid enters the cooling cavity through the water inlet pipe 4 and is finally discharged through the water outlet pipe 5. The water inlet pipes 4 are evenly distributed on the central line of the cooling cover 1, and the 2 water outlet pipes 5 are symmetrically arranged on the front side wall and the rear side wall of the cooling base body 3.
The drainage plate 6, the lithium battery unit 7 and the fixing plate 8 are sequentially arranged in the cooling cavity from top to bottom, the lithium battery unit 7 comprises a plurality of lithium batteries which are arranged in a rectangular array, the fixing plate 8 is arranged on the cooling base 2, a plurality of mounting grooves 10 are uniformly equidistantly arranged on the fixing plate 8, the mounting grooves 10 are arranged in a rectangular array, the mounting grooves 10 are used for placing the lithium batteries, the drainage plate 6 is an acrylic plate made of polymethyl methacrylate material and can avoid short circuit, cellular cylindrical holes 9 are distributed on the drainage plate 6, the density of the middle parts of the cylindrical holes 9 on the drainage plate 6 is high, the edge density is low, the diameter of the cylindrical holes 9 is 8-10mm, the heat dissipation efficiency of the middle lithium batteries is low, and therefore more cooling liquid can be circulated in the middle parts of the cylindrical holes 9 due to the high density, and the drainage plate 6 is welded on the inner wall of the cooling base body 3.
The cooling liquid adopts transformer oil, can be in direct contact with the lithium battery and has higher thermal conductivity, and the required flow of the cooling liquid and the energy consumption of an external pump body are reduced; and a certain flame retardant effect can be provided when a single lithium battery is out of control due to heat, so that the safety and stability of the lithium battery pack are effectively protected.
After the cooling liquid enters the cooling cavity and is subjected to the diversion effect of the drainage plate 6, the cooling liquid shows the phenomenon that the flow is gradually decreased from the middle to the periphery, so that the innermost battery of the battery pack is fully cooled by the cooling medium, and the cooling rate is gradually decreased from inside to outside. Finally, all the cooling liquid is collected at the bottom of the cooling matrix 3 and flows out through the two water outlet pipes 5. Through such cooling cycle, both can be to single lithium cell cooling, also can be for the cooling of whole lithium cell group, guarantee the temperature homogeneity of whole lithium cell group.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (7)
1. The utility model provides a lithium cell group cooling device based on distributed fluid of drainage which characterized in that: comprises an outer shell, a lithium battery unit (7), a drainage plate (6) and a fixing plate (8);
a cooling cavity is formed inside the outer shell, and cooling liquid is filled in the cooling cavity;
the drainage plate (6), the lithium battery unit (7) and the fixing plate (8) are sequentially arranged in the cooling cavity from top to bottom, the top of the external shell is provided with a plurality of water inlet pipes (4), and the bottom of the side wall of the external shell is provided with a plurality of water outlet pipes (5);
the fixing plate (8) is placed on a bottom plate of the outer shell, a plurality of mounting grooves (10) for mounting lithium batteries are uniformly arranged on the fixing plate (8) at equal intervals, the lithium battery unit (7) comprises a plurality of lithium batteries, and the lithium batteries are mounted in the mounting grooves (10);
honeycomb-shaped cylindrical holes (9) are distributed on the drainage plate (6).
2. A lithium battery pack cooling arrangement based on a dispersion-draining fluid according to claim 1, characterized in that: the plurality of lithium batteries are arranged in a rectangular array.
3. A lithium battery pack cooling arrangement based on a dispersion fluid draining according to claim 1 or 2, characterized in that: the middle part of the cylindrical hole (9) on the drainage plate (6) has high density and the edge of the cylindrical hole has low density.
4. A lithium battery pack cooling arrangement based on a dispersion-draining fluid according to claim 1, characterized in that: the drainage plate (6) is an acrylic plate.
5. A lithium battery pack cooling arrangement based on a dispersion-draining fluid according to claim 1, characterized in that: the outer casing comprises a cooling cover (1), a cooling base (2) and a cooling base (3).
6. A lithium battery pack cooling arrangement based on a dispersion-draining fluid according to claim 5, characterized in that: the cooling cover (1) plate is provided with 3 water inlet pipes (4), and the 3 water inlet pipes (4) are uniformly distributed on the central line of the cooling cover (1).
7. A lithium battery pack cooling arrangement according to claim 5 or 6, based on a dispersion fluid draining, characterized in that: the side wall of the cooling base body (3) is provided with 2 water outlet pipes (5), and the 2 water outlet pipes (5) are symmetrically arranged on the front side wall and the rear side wall of the cooling base body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121499079.9U CN215418317U (en) | 2021-07-02 | 2021-07-02 | Lithium battery pack cooling device based on drainage distributed fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121499079.9U CN215418317U (en) | 2021-07-02 | 2021-07-02 | Lithium battery pack cooling device based on drainage distributed fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215418317U true CN215418317U (en) | 2022-01-04 |
Family
ID=79646419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121499079.9U Active CN215418317U (en) | 2021-07-02 | 2021-07-02 | Lithium battery pack cooling device based on drainage distributed fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215418317U (en) |
-
2021
- 2021-07-02 CN CN202121499079.9U patent/CN215418317U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102306815A (en) | Liquid flow cell system | |
| CN108390128A (en) | Battery case liquid-cooling heat radiation structure method for building up and corresponding construction | |
| CN112701382A (en) | Disc type lithium battery cooling box based on nested spiral liquid cooling | |
| CN113488720A (en) | Lithium battery pack cooling device based on drainage distributed fluid | |
| CN209374492U (en) | A kind of high capacity lithium ion battery shell that heat sinking function is good | |
| CN215418317U (en) | Lithium battery pack cooling device based on drainage distributed fluid | |
| CN112582703B (en) | Novel battery cooling structure based on coupling of heat pipe and liquid cooling plate | |
| CN112490569B (en) | Micro-channel type battery liquid cooling structure | |
| CN212136533U (en) | Electric motor car battery thermal management device | |
| CN210692720U (en) | Immersed liquid-cooled battery pack | |
| CN202474052U (en) | High-capacity cylindrical lithium ion battery housing | |
| CN111370809A (en) | Heat radiation structure of power battery | |
| CN208608328U (en) | A kind of battery water-cooled plate and heat radiation module | |
| CN102237548B (en) | Assembled cell having built-in liquid cooling structure | |
| CN208723021U (en) | It is a kind of can be from the internal thermally conductive lithium ion battery to radiate | |
| CN218101332U (en) | Battery heat management device based on solid-solid phase change material | |
| CN214254529U (en) | Disc type lithium battery cooling box based on nested spiral liquid cooling | |
| CN115714217A (en) | Laminated power battery thermal management system based on heat transfer of positive current collector | |
| CN114464923A (en) | Quick-charging type lithium ion battery module structure | |
| CN114039122A (en) | Cooling system for power storage battery for electric automobile | |
| CN113178638A (en) | Bionic heat dissipation method and device for liquid-cooled battery pack | |
| CN114300704A (en) | Fuel cell with heat pipe for strengthening heat transfer | |
| CN208189742U (en) | Battery case liquid-cooling heat radiation structure | |
| CN221176393U (en) | Lithium battery liquid cooling cooler with interval structure | |
| CN220895617U (en) | Immersed liquid cooling energy storage battery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |