CN209282351U - A kind of power battery thermal management system based on flexible heat pipe - Google Patents
A kind of power battery thermal management system based on flexible heat pipe Download PDFInfo
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- CN209282351U CN209282351U CN201821581318.3U CN201821581318U CN209282351U CN 209282351 U CN209282351 U CN 209282351U CN 201821581318 U CN201821581318 U CN 201821581318U CN 209282351 U CN209282351 U CN 209282351U
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- Prior art keywords
- heat pipe
- battery
- flexible heat
- thermal management
- management system
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- 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
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Abstract
The utility model discloses a kind of power battery thermal management systems based on flexible heat pipe, cabinet including placing several battery cells for rule, the surface of several cylindrical battery monomers is closely provided with several flexible heat pipes, and the condensation end of the flexible heat pipe passes through the outdoor air cooling device that box cover extends to outside cabinet and carries out reinforcing heat dissipation.The power battery thermal management system of the flexible heat pipe of the utility model can be such that battery works normally under high temperature bad border, so that battery-heating amount is exported battery case by heat pipe, avoid battery thermal runaway.The utility model utilizes the efficient heat transfer of heat pipe, by air-cooled heat transfer, improves heat dissipation effect, reduces battery heat localization, so that battery temperature is maintained at zone of reasonableness, structure is simple, small in size, at low cost, adaptable, Yi Shixian.
Description
Technical field
The utility model relates to electric automobile power battery thermal management technology fields, in particular to a kind of to be based on flexible heat pipe
Power battery thermal management system.
Background technique
As various countries are devoted to the utilization of clean energy resource, various countries the investment that electric car field is developed and studies not
Disconnected to improve, more environmentally protective electric car is developed rapidly.Lithium battery is due to monomer voltage height, light-weight, body
Product is small, and specific energy is big, the long self-discharge rate of service life cycle, charge and discharge memory-less effect, and it is environmentally protective, it is pollution-free etc.
Advantage is considered as the optimal selection of electric automobile power battery.
But lithium battery can generate amount of heat in fast charging and discharging, and the performance of lithium battery is as the temperature rises
Be substantially reduced, the long-term work under high temperature bad border, battery will appear the service life seriously reduce, leakage, thermal runaway phenomena such as, seriously then
It will lead to electric car spontaneous combustion.And existing heat dissipation technology includes air-cooled, water cooling etc. or inefficiency, it is difficult to meet power electric
Pond radiating requirements or it is difficult to adapt to complicated bad border, so need a kind of new heat management device of power battery.
Utility model content
The utility model provides a kind of based on flexibility to solve power battery heat management problems in a high temperauture environment
The power battery thermal management system of heat pipe.
The utility model is achieved through the following technical solutions:
A kind of power battery thermal management system based on flexible heat pipe, the case including placing several battery cells for rule
Body, the surface of several battery cells are closely provided with several flexible heat pipes, and the condensation end of the flexible heat pipe passes through case
The outdoor air cooling device that body case lid extends to outside cabinet carries out reinforcing heat dissipation.
Further, the flexible heat pipe is flaky room temperature copper strips heat pipe.
Further, the heat radiation power of the flexible heat pipe is 10-20W, and operating temperature range is 0-100 degrees Celsius, is dissipated
The thermal efficiency is high and applied widely.
Further, the minimum profile curvature radius when flexible heat pipe is bent is 10mm, to meet different size shape
The heat dissipation of battery cell needs.
Further, the flexible heat pipe with a thickness of 1-3mm, relatively thin thickness can also be substantially while realizing heat transfer
Save installation space.
Further, the battery cell is cylinder, and the hot end of the flexible heat pipe is S-type to be located at two neighboring battery
Between monomer, and it is affixed on battery cell surface.This programme can by improving the heat transfer area of flexible heat pipe and battery cell surface
Effectively improve heat transference efficiency.
Further, the inside of the flexible heat pipe has been equipped with the capillary grain or very low power structure of capillarity, can promote
It is flexible into working medium cooling for reflux；Insulation processing is done in outside, prevents from contacting generation short circuit with electrode.
Further, the outdoor air cooling device includes auxiliary heat dissipation fan, the temperature for detecting battery body temperature
Detection module, control module are spent, the control module is used to detect that battery body temperature is higher than setting when temperature detecting module
It opens the auxiliary heat dissipation fan when value to rotate by certain speed, accelerating the condensation end of the flexible heat pipe to radiate makes battery temperature
Drop in reasonable range.This programme utilizes the efficient heat transfer of heat pipe, is radiated by air-cooled reinforcing, can preferably control electricity
The temperature of Chi Bao.
Further, the condensation end of the flexible heat pipe is provided with fin, and the fin monolithic height is 10-15mm,
Width is 3-5mm, with a thickness of 0.1-0.3mm.This programme further increases radiating efficiency by the way that fin is arranged.
Further, the auxiliary heat dissipation fan is right against the condensation end installation, power 22-30W, wind speed 0-
5m/s and by control module dynamic regulation.Low energy consumption for the fan of this programme, can be according to real time temperature dynamic regulation heat dissipation effect.
The utility model prior art is compared and is had the advantage that
1, efficient and light-weighted automobile power cell heat management system, temperature control of this project based on Heat Pipes battery
System, is compared to traditional air-cooled, does not need very powerful fan, thus has higher efficiency, and can save power electric
The energy in pond.
2, the heat pipe thickness direction is small-sized, light-weight, and compared to water cooling, the phase-change materials such as paraffin, structure is simple,
It is light-weight.
3, the heat pipe has excellent performance, and the metallic fiber of internal very low power and sintering can promote working medium cooling
Reflux, provides heat pipe working efficiency, flexural property more fits in cylindrical battery surface, more enough for the fin of battery design
It is easier to installation heat dissipation.
Detailed description of the invention
Fig. 1 is the power battery thermal management system schematic top plan view of the utility model embodiment.
Fig. 2 is the power battery thermal management system stereoscopic schematic diagram of the utility model embodiment.
Fig. 3 be the utility model embodiment flexible heat pipe in conjunction with battery stereoscopic schematic diagram.
Fig. 4 be the utility model embodiment flexible heat pipe in conjunction with battery schematic top plan view.
In figure: 1- cylindrical battery, 2- flexible heat pipe, 3- fin, 4- cabinet.
Specific embodiment
The purpose of utility model of the utility model is described in further detail in the following with reference to the drawings and specific embodiments,
The embodiments cannot be described here one by one, but therefore the embodiments of the present invention is not limited to the following examples.
As illustrated in figs. 1 and 2, a kind of power battery thermal management system based on flexible heat pipe, including placed for rule
The surface of the cabinet 4 of several cylindrical battery monomers 1, several cylindrical battery monomers 1 is closely provided with several flexibilities
Heat pipe 2, the condensation end of the flexible heat pipe 2, which passes through the outdoor air cooling device that box cover extends to outside cabinet and strengthen, to be dissipated
Heat.
The flexible heat pipe 2 is flaky room temperature copper strips heat pipe, with a thickness of 1-3mm, heat radiation power 15W, work temperature
Spending range is 0-100 degrees Celsius, and relatively thin thickness can also substantially save installation space while realizing heat transfer, and radiating efficiency is high
And it is applied widely.The flexible heat pipe 2 can be bent to a certain degree, and minimum profile curvature radius when bending is 10mm, to meet
The heat dissipation of different size shaped cells monomer needs.
As shown in Figure 3 and Figure 4, the hot end of the flexible heat pipe 2 is S-type between two neighboring battery cell 1, and pastes
In 1 surface of battery cell.This programme can effectively improve heat by improving the heat transfer area of flexible heat pipe 2 and 1 surface of battery cell
Transmission efficiency.
The inside of the flexible heat pipe 2 has been equipped with the capillary grain or very low power structure of capillarity, and working medium can be promoted cold
But it flows back flexible；Insulation processing is done in outside, prevents from contacting generation short circuit with electrode.
Meanwhile the condensation end of the flexible heat pipe 2 is provided with fin 3, the 3 monolithic height of fin is 10-15mm, thick
Degree is 0.1-0.3mm.This programme further increases radiating efficiency by the way that fin is arranged.
The outdoor air cooling device includes auxiliary heat dissipation fan, the temperature detection mould for detecting battery body temperature
Block, control module, the control module are used for the unlatching when temperature detecting module detects that battery body temperature is higher than setting value
The auxiliary heat dissipation fan is rotated by certain speed, and accelerating the condensation end of the flexible heat pipe 2 to radiate drops to battery temperature
In reasonable range.Using the efficient heat transfer of flexible heat pipe 2, is radiated by air-cooled reinforcing, can preferably control battery pack
Temperature.
The auxiliary heat dissipation fan is right against the condensation end installation, power 30W, and wind speed is 0-5m/s and by control mould
Block dynamic regulation.Low energy consumption for the fan of this programme, can be according to real time temperature dynamic regulation heat dissipation effect.
In the present embodiment, when the heat sensor such as thermocouple for being located at battery surface is collected when the temperature is excessively high, auxiliary dissipates
Hot-air fan is started to work, meanwhile, fan wind speed can be controlled according to actual temp, reinforce flexible heat pipe 2 and fin 3 radiates, make temperature
Degree control is in zone of reasonableness.
In the present embodiment, the battery pack is made of multiple cylindrical battery monomers 1,1 high-temperature behavior of battery cell
Preferably, discharge capacity is installed in cabinet 4 80% or more at 50 c, and the battery cell 1 is in 4 inside established practice of cabinet
It then arranges, which can be easy to disassemble and installs, and selects 1 quantity of suitable batteries monomer according to demand.Each battery cell
Connection type is series-parallel Hybrid connections between 1, forms battery case with cabinet 4, battery case is placed in automobile head.
Power battery management system provided by the above embodiment is filled by power battery pack, flexible heat pipe 2 and outdoor air cooling
It sets and combines, the course of work are as follows:
When in the work of batteries of electric automobile group because fast charging and discharging, which generates amount of heat, to elevate the temperature when, heat is from a list
Body battery 1 exports to cold end and fin 3 outside battery case by flexible heat pipe 2, is passed to heat in air by fin 3.?
Be right against outside fin 3 equipped with auxiliary heat dissipation fan, when battery surface when the temperature is excessively high, auxiliary heat dissipation fan is opened, and is passed through
Control module adjusts wind speed, accelerates fin 3 and radiates, reduces battery temperature, controls battery temperature in reasonable range.
The above embodiments of the present invention is merely examples for clearly illustrating the present invention, and is not
Limitations of the embodiments of the present invention.For those of ordinary skill in the art, on above explained basis
On can also make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.
Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in this reality
Within novel scope of protection of the claims.
Claims (10)
1. a kind of power battery thermal management system based on flexible heat pipe, which is characterized in that including placing several electricity for rule
The cabinet of pond monomer, the surface of several battery cells are closely provided with several flexible heat pipes, the flexible heat pipe it is cold
Solidifying end carries out reinforcing heat dissipation across the outdoor air cooling device that box cover extends to outside cabinet.
2. the power battery thermal management system according to claim 1 based on flexible heat pipe, which is characterized in that the flexibility
Heat pipe is flaky room temperature copper strips heat pipe.
3. the power battery thermal management system according to claim 1 based on flexible heat pipe, which is characterized in that the flexibility
The heat radiation power of heat pipe is 10-20W, and operating temperature range is 0-100 degrees Celsius.
4. the power battery thermal management system according to claim 1 based on flexible heat pipe, which is characterized in that the flexibility
Minimum profile curvature radius when heat pipe is bent is 10mm.
5. the power battery thermal management system according to claim 1 based on flexible heat pipe, which is characterized in that the flexibility
Heat pipe with a thickness of 1-3mm.
6. the power battery thermal management system according to claim 1 based on flexible heat pipe, which is characterized in that the battery
Monomer is cylinder, and the hot end of the flexible heat pipe is S-type between two neighboring battery cell, and is affixed on battery cell table
Face.
7. the power battery thermal management system according to claim 1 based on flexible heat pipe, which is characterized in that the flexibility
The inside of heat pipe has been equipped with the capillary grain of capillarity or insulation processing is done in very low power structure, outside.
8. the power battery thermal management system according to claim 1 based on flexible heat pipe, which is characterized in that described is outer
Portion's air cooling device includes auxiliary heat dissipation fan, the temperature detecting module for detecting battery body temperature, control module, the control
Molding block be used for when temperature detecting module detect battery body temperature be higher than setting value when open the auxiliary heat dissipation fan by
Certain speed rotation, accelerating the condensation end of the flexible heat pipe to radiate drops to battery temperature in reasonable range.
9. the power battery thermal management system according to claim 1 based on flexible heat pipe, which is characterized in that the flexibility
The condensation end of heat pipe is provided with fin, and the fin monolithic height is 10-15mm, width 3-5mm, with a thickness of 0.1-0.3mm.
10. the power battery thermal management system according to claim 8 based on flexible heat pipe, which is characterized in that described auxiliary
Radiator fan is helped to be right against the condensation end installation, power 22-30W, wind speed is 0-5m/s and by control module dynamic regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821581318.3U CN209282351U (en) | 2018-09-27 | 2018-09-27 | A kind of power battery thermal management system based on flexible heat pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821581318.3U CN209282351U (en) | 2018-09-27 | 2018-09-27 | A kind of power battery thermal management system based on flexible heat pipe |
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| CN209282351U true CN209282351U (en) | 2019-08-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301385A (en) * | 2018-09-27 | 2019-02-01 | 华南理工大学 | A kind of power battery thermal management system based on flexible heat pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301385A (en) * | 2018-09-27 | 2019-02-01 | 华南理工大学 | A kind of power battery thermal management system based on flexible heat pipe |
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