CN203103466U - Thermal management system of lithium battery in HEV - Google Patents
Thermal management system of lithium battery in HEV Download PDFInfo
- Publication number
- CN203103466U CN203103466U CN201320101390.2U CN201320101390U CN203103466U CN 203103466 U CN203103466 U CN 203103466U CN 201320101390 U CN201320101390 U CN 201320101390U CN 203103466 U CN203103466 U CN 203103466U
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- Prior art keywords
- lithium battery
- air
- phase
- management system
- change material
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 39
- 239000012782 phase change material Substances 0.000 claims abstract description 44
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000012188 paraffin wax Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 10
- 230000005855 radiation Effects 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 4
- 238000004321 preservation Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 15
- 239000012071 phase Substances 0.000 description 10
- 230000007704 transition Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Classifications
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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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- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to a thermal management system for lithium batteries of a hybrid electric vehicle. The thermal management system comprises a box with an air inlet and an air outlet, wherein multiple rows of lithium battery packs are vertically arranged in the box; coupling radiators are arranged between each two adjacent lithium battery packs, and each coupling radiator comprises two vertical clapboards and phase change materials; the opposite sides of each two clapboards are respectively and uniformly provided with a plurality of vertical fins in the horizontal direction, and each two adjacent fins and the corresponding two clapboards form a vertical installation groove; and the phase change materials are arranged in part of the installation grooves in a sealing manner, the rest installation grooves serve as air flow passages, and each two adjacent installation grooves containing the phase change materials are separated from each other by one or more air flow passages. The thermal management system for the lithium batteries of the hybrid electric vehicle is simple in structure and low in energy consumption and cost, has a good temperature control effect, and has diversified functions of heat radiation, heating, heat preservation and the like.
Description
Technical field
The utility model relates to the heat management system of lithium battery in a kind of hybrid vehicle.
Background technology
Storage battery is the important component part of mixed power electric car, and the quality of its operating state directly influences the fail safe, economy etc. of car load.Lithium ion battery can be emitted heat in charge and discharge process, simultaneously automobile limited the space in battery pack generally adopt compact arrangement form, untimely then can cause the heat accumulation of inside battery if dispel the heat, cause thermal runaway, have a strong impact on the performance and the safety of battery, the inconsistent meeting of temperature causes the inconsistent of battery performance, causes the super-charge super-discharge of part battery, makes the whole decline of battery performance.In addition, ambient temperature below 10 ℃ the time, battery discharge capacity begin to descend, particularly evident when temperature is lower than-20 ℃, have a strong impact on the normal use of battery pack and electric automobile.
At present, there have been many domestic and international research persons that the heat dissipation problem of lithium battery in the hybrid vehicle is studied.Heat dissipating method mainly is divided into: air-cooling, liquid cools method, phase-change material cooling method, heat pipe cooling method etc.
Wherein, forced air convection current cooling method is because it is simple in structure, and the low and better radiating effect of cost is widely used.But under conditions such as higher ambient temperature, lasting big load, this method not only energy consumption increases greatly, and radiating effect also can't reach requirement;
The liquid cools method has the thermal transmission coefficient higher with respect to air, thinner liquid boundary layer, and higher thermal conductivity, it can realize the effective cooling to battery pack temperature, can realize uniform distribution of temperature between cell again.But this method need increase extra circulation and heat abstractor, complex structure, and the volume and the quality of system are excessive.
The phase-change material cooling method utilizes the characteristic of the absorption latent heat of phase change in the material phase transformation process to reach cooling purpose.This method does not need extra equipment, does not need energy drives, has hot preferably cushioning effect.But it belongs to a kind of passive heat dissipating method, can only work in the phase transition temperature scope, and because the lower thermal conductivity of phase-change material causes its heat absorption speed lower, radiating effect is undesirable under big loading condiction.The many employings of simple phase-change material cooling system are filled phase-change material and are realized around battery, this structure is difficult to the heating of realization to battery pack.
The heat pipe cooling method, heat pipe is a kind of hollow pipe of hermetically-sealed construction, and an end is an evaporation ends, and the other end is a condensation end, when containing evaporation in the pipe and the time transmitting the liquid of a large amount of heats and condensation liquid being taken back the wick of starting point, is a kind of heat conductor that utilizes the phase transformation efficient heat transfer.This method can solve the problem of battery pack heat radiation preferably, but has increased the complexity of system, and because the character of the unidirectional heat transfer of heat pipe, this structure is difficult to the heating of realization to battery pack equally.
The patent application of CN201110108209.6 has proposed to utilize phase-change material to dispel the heat cooling and keep the method for air flow channel simultaneously of battery, but this patent mainly is the application that proposes the higher composite phase-change material of a kind of thermal conductivity, power brick is wrapped in the composite phase-change material in its structure, air flow channel does not directly contact with battery between composite phase-change material, can only cool off phase-change material, can't realize cooling and heating, and its composite phase-change material preparation is complicated to battery.
Summary of the invention
The purpose of this utility model is, at the deficiencies in the prior art, the heat management system of lithium battery in a kind of hybrid vehicle is provided, in conjunction with the advantage of air heat radiation with two kinds of cooling methods of phase-change material heat radiation, can realize air heat radiation and phase-change material heat radiation simultaneously, simple in structure, good heat dissipation effect.
The technical solution of the utility model is, the heat management system of lithium battery in a kind of hybrid vehicle, comprise the casing of bringing air port and air outlet into, vertically place multiple row lithium battery group in the casing, the coupling heat abstractor is installed between the adjacent lithium battery group, described coupling heat abstractor comprises two vertical dividing plates and phase-change material, two relative side along continuous straight runs of dividing plate evenly are provided with a plurality of vertical fins respectively, adjacent two fins and two dividing plates are combined to form a vertical mounting groove, described phase-change material sealing is installed in the part mounting groove, all the other mounting grooves are as air flow channel, and adjacent two one or more air flow channels in mounting groove interval that phase-change material is housed.
Aluminium or copper with high thermal conductivity become finned plate-fin dividing plate, fill phase-change material with form at interval and reserve air flow channel simultaneously in the fin gap, and wherein phase-change material is sealed between the fin, prevents to occur in the phase transition process leakage phenomenon.Plate-fin structure can improve the integral heat sink area, and solves the low excessively problem of olefin material thermal conductivity by fin heat conduction.This structure also has the air conducting distributional effects, can improve the temperature consistency.
Lithium battery group top in the described casing is provided with the air-out passage that is communicated with air outlet, and the below of the lithium battery group in the casing is provided with the air intake passage that is communicated with air inlet, described air flow channel respectively with air intake passage and air-out channel connection, can realize that air dispels the heat.
Described box inside is sealed with phase-change material layers, plays the effect of heat buffering, thermal insulation, insulation.
Described phase-change material is a paraffin, according to the operating position difference, chooses between 35 ~ 50 ℃ of phase transition temperatures.Waiting in the winter time and choosing phase transition temperature under the cryogenic conditions is 35 ~ 40 ℃ phase-change material; Under typical condition, choose phase transition temperature and be 40 ~ 45 ℃ phase-change material; When ambient temperatures such as summer are higher, choose phase transition temperature and be 45 ~ 50 ℃ phase-change material.
Under the situation such as normal temperature and summer high temperature (25 ~ 40 ℃), when little load, the temperature of battery pack slowly raises, import cooling air by blower fan through air inlet, cooling air cools off the lithium battery group through fin flow guiding, distribution, hot-air is discharged through air outlet, in this process, adjust the intake size according to battery temperature, air quantity is that the maximum quantity of wind of laminar condition is the upper limit to keep in the air flow channel.When big load, by blower fan input cooling air the lithium battery group is cooled off earlier, when temperature rises to the phase transition temperature that is higher than phase-change material, the heat of lithium battery group passes to phase-change material through dividing plate, fin, phase-change material generation solid-liquid phase change endothermic process, the temperature that suppresses the lithium battery group rises, and plays hot cushioning effect.When loading from large to small, cooling air will be taken away the heat that stores in the phase-change material, ensure that phase-change material can continuous firing.
Ambient temperature is lower than under 10 ℃ the situation, battery pack temperature was low excessively when mixed power electric car started, the waste heat that utilizes engine heats the air of air inlet, and hot-air is realized heating to the lithium battery group guaranteeing the normal use of lithium battery group through air flow channel.In the driving process, utilize the energy storage characteristic of phase-change material, the heat that can utilize the lithium battery group to send is incubated the lithium battery group, by control Fan Regulation intake, lithium battery group temperature is controlled at optimum temperature range simultaneously.
The utility model is as the heat management system of lithium battery in a kind of hybrid vehicle, and is simple in structure, and it is low to consume energy, and temperature control effect is good, and cost is low, has diversified functions such as heat radiation, heating and insulation simultaneously.
Description of drawings
Fig. 1 is the structural front view of lithium battery heat management system described in the utility model;
Fig. 2 is the cross sectional view of A-A face among Fig. 1;
Fig. 3 is the structural representation of coupling heat abstractor among Fig. 1.
Embodiment
As Fig. 1, shown in Figure 2, the heat management system of lithium battery in a kind of hybrid vehicle, comprise the casing 1 of bringing air port 4 and air outlet 3 into, the multiple row lithium battery group 5 of vertically placing in the casing 1, coupling heat abstractor 6 is installed between the adjacent lithium battery group 5, as shown in Figure 3, the coupling heat abstractor comprises two vertical dividing plates 7 and phase-change material 8, two dividing plate 7 relative side along continuous straight runs evenly are provided with a plurality of vertical fins 9 respectively, adjacent two fins 9 and two dividing plates 7 are combined to form a vertical mounting groove, described phase-change material sealing is installed in the part mounting groove, all the other mounting grooves are as air flow channel 10, and adjacent two air flow channels 10 in mounting groove interval that phase-change material 8 is housed.
Box inside is sealed with phase-change material layers, and phase-change material layers is a paraffin.
Phase-change material 8 is a paraffin.Fin 9 and dividing plate 7 adopt the aluminium or the copper of high thermal conductivity.
Claims (5)
1. the heat management system of lithium battery in the hybrid vehicle, comprise the casing (1) of bringing air port (4) and air outlet (3) into, vertically place multiple row lithium battery group (5) in the casing (1), it is characterized in that, coupling heat abstractor (6) is installed between the adjacent lithium battery group (5), described coupling heat abstractor comprises two vertical dividing plates (7) and phase-change material (8), the side along continuous straight runs that two dividing plates (7) are relative evenly is provided with a plurality of vertical fins (9) respectively, adjacent two fins (9) are combined to form a vertical mounting groove with two dividing plates (7), described phase-change material sealing is installed in the part mounting groove, all the other mounting grooves are as air flow channel (10), and adjacent two mounting groove interval one or more air flow channels (10) that phase-change material (8) is housed.
2. according to the heat management system of lithium battery in the described hybrid vehicle of claim 1, it is characterized in that, lithium battery group (5) top in the described casing is provided with the air-out passage (2) that is communicated with air outlet (4), and the below of the lithium battery group (5) in the casing is provided with the air intake passage (11) that is communicated with air inlet (3), and described air flow channel (10) is communicated with air intake passage (11) and air-out passage (2) respectively.
3. according to the heat management system of lithium battery in claim 1 or the 2 described hybrid vehicles, it is characterized in that described box inside is sealed with phase-change material layers.
4. according to the heat management system of lithium battery in claim 1 or the 2 described hybrid vehicles, it is characterized in that described phase-change material (8) is a paraffin.
5. according to the heat management system of lithium battery in the described hybrid vehicle of claim 3, it is characterized in that described phase-change material layers is a paraffin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320101390.2U CN203103466U (en) | 2013-03-06 | 2013-03-06 | Thermal management system of lithium battery in HEV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320101390.2U CN203103466U (en) | 2013-03-06 | 2013-03-06 | Thermal management system of lithium battery in HEV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203103466U true CN203103466U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320101390.2U Expired - Fee Related CN203103466U (en) | 2013-03-06 | 2013-03-06 | Thermal management system of lithium battery in HEV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203103466U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138029A (en) * | 2013-03-06 | 2013-06-05 | 湖南大学 | Thermal management system of lithium battery in hybrid power vehicle |
| CN105406152A (en) * | 2015-12-03 | 2016-03-16 | 天津大学 | Thermal management system for lithium-ion battery in power car |
| CN111916601A (en) * | 2020-07-21 | 2020-11-10 | 荷氢新能源科技(山东)有限公司 | Energy storage battery pack device |
| CN111969279A (en) * | 2020-08-26 | 2020-11-20 | 广东工业大学 | Power battery device |
| CN112542631A (en) * | 2020-12-09 | 2021-03-23 | 佛山科学技术学院 | Battery thermal management system |
| CN118899562A (en) * | 2024-09-30 | 2024-11-05 | 长安绿电科技有限公司 | Lithium battery capacity equalizer and energy storage power supply |
-
2013
- 2013-03-06 CN CN201320101390.2U patent/CN203103466U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138029A (en) * | 2013-03-06 | 2013-06-05 | 湖南大学 | Thermal management system of lithium battery in hybrid power vehicle |
| CN105406152A (en) * | 2015-12-03 | 2016-03-16 | 天津大学 | Thermal management system for lithium-ion battery in power car |
| CN111916601A (en) * | 2020-07-21 | 2020-11-10 | 荷氢新能源科技(山东)有限公司 | Energy storage battery pack device |
| CN111969279A (en) * | 2020-08-26 | 2020-11-20 | 广东工业大学 | Power battery device |
| CN111969279B (en) * | 2020-08-26 | 2022-04-19 | 广东工业大学 | A power battery device |
| CN112542631A (en) * | 2020-12-09 | 2021-03-23 | 佛山科学技术学院 | Battery thermal management system |
| CN118899562A (en) * | 2024-09-30 | 2024-11-05 | 长安绿电科技有限公司 | Lithium battery capacity equalizer and energy storage power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20160306 |