CN205159471U - Lithium ion battery's thermal management system in power car - Google Patents
Lithium ion battery's thermal management system in power car Download PDFInfo
- Publication number
- CN205159471U CN205159471U CN201520997533.1U CN201520997533U CN205159471U CN 205159471 U CN205159471 U CN 205159471U CN 201520997533 U CN201520997533 U CN 201520997533U CN 205159471 U CN205159471 U CN 205159471U
- Authority
- CN
- China
- Prior art keywords
- ion battery
- fin
- lithium ion
- change material
- management system
- 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.)
- Expired - Fee Related
Links
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 ion battery's thermal management system in power car, lithium ion battery includes at least one group battery, every the group battery includes the rectangle lithium ion battery monomer that a plurality of front and backs set up side by side, its characterized in that, this thermal management system includes fin and phase change material, at every lithium ion battery respectively is equipped with one on two terminal surfaces around being free the fin is at every the free each side of lithium ion battery is formed with a confined space, confined space by lithium ion battery monomer and rather than two that correspond fin and a baffle enclose, baffle and two the fin rigid coupling, the confined space intussuseption is filled with phase change material. The utility model discloses under natural convection can with the temperature control of battery at suitable within range, reach good cooling effect, need not consume extra energy. And the utility model discloses simple structure does not need too many equipment.
Description
Technical field
The utility model relates to temperature of powered cell control field, particularly relates to the heat management system of lithium ion battery in a kind of power vehicle.
Background technology
Battery is the important component part of electric automobile, and the quality of its operating state directly affects fail safe and the economy of car load, and the performance of battery pack and temperature closely related.If battery pack can not get timely ventilation and heat in the case of a high temperature, will cause that battery pack temperature is too high or temperature distributing disproportionation is even, reduce the charge and discharge cycles efficiency of battery the most at last, the power and the energy that affect battery play, also will cause thermal runaway time serious, affect the safety and reliability of battery.
At present, the radiating mode of battery pack mainly contains air-cooling, liquid cools method, phase-change material cooling method and heat pipe cooling method etc.Air-cooling structure is simple, cost is low, but radiating effect cannot reach requirement under heavy load; Liquid cools method energy effective cooling battery pack and realize uniformity of temperature profile between battery, but complex structure, volume and quality larger; Phase-change material cooling method structure is simple, and have good hot cushioning effect, but can only work in transition temperature range, under large loading condiction, radiating effect is undesirable; Heat pipe cooling method can solve battery pack heat dissipation problem effectively, but system complex, and the unidirectional heat transfer of heat pipe, be difficult to heat battery pack.
Chinese patent literature CN103138029A, on June 5th, 2013, discloses the heat management system of lithium battery in a kind of hybrid vehicle, adopts the mode be arranged on battery end-face by phase-change material to dispel the heat.Phase-change material cooling structure is simple, have good hot buffering effect, but when it undergoes phase transition thawing, thermal conductivity is very low, not only can not play thermolysis, can increase thermal resistance on the contrary, hinders shedding of heat.
Summary of the invention
The utility model provides the heat management system of lithium ion battery in a kind of power vehicle for solving in known technology the technical problem that exists, and this system can reach good cooling effect under Natural Convection Conditions.
The technical scheme that the utility model is taked for the technical problem existed in solution known technology is: the heat management system of lithium ion battery in a kind of power vehicle, described lithium ion battery comprises at least one battery pack, each described battery pack comprises the rectangle lithium-ion battery monomer that multiple front and back are arranged side by side, this heat management system comprises fin and phase-change material, former and later two end faces of each described lithium-ion battery monomer are respectively provided with a described fin, a seal cavity is each side formed at each described lithium-ion battery monomer, described seal cavity is surrounded by described lithium-ion battery monomer and corresponding with it two described fins and a baffle plate, described baffle plate and two described fins affixed, described fin is provided with the over-hang part stretched out outside described baffle plate, described phase-change material is filled with in described seal cavity.
Described fin is rectangle aluminium flake or copper sheet.
Described phase-change material is paraffin.
Described baffle plate is adopted and is made of aluminum or copper.
The advantage that the utility model has and good effect are: the mode combined that employing fin dispels the heat and phase-change material dispels the heat, and adopt structure phase-change material being sealed in battery both sides, make phase-change material after thawing is for liquid, battery thermal resistance can not be increased, obstruction battery dispels the heat, make the utility model can reach good cooling effect under Natural Convection Conditions, do not need to consume extra energy.When ambient temperature is lower, phase-change material can also play the effect of heating, insulation.The utility model adopts the local gap between phase-change material filling fin, not only can meet cooling requirements, and can reduce the weight of system, save material.And the utility model structure is simple, does not need too many equipment.
Accompanying drawing explanation
Fig. 1 is vertical view of the present utility model;
Fig. 2 is the end view of Fig. 1.
In figure: 1, lithium-ion battery monomer, 2, phase-change material, 3, fin, 4, baffle plate.
Embodiment
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 ~ Fig. 2, the heat management system of lithium ion battery in a kind of power vehicle, described lithium ion battery comprises at least one battery pack, and each described battery pack comprises the rectangle lithium-ion battery monomer 1 that multiple front and back are arranged side by side, and this heat management system comprises fin 3 and phase-change material 2; Former and later two end faces of each described lithium-ion battery monomer 1 are respectively provided with a described fin 3, a seal cavity is each side formed at each described lithium-ion battery monomer 1, described seal cavity is surrounded by described lithium-ion battery monomer 1 and corresponding with it two described fins 3 and a baffle plate 4, described baffle plate 4 and two described fins 3 affixed, described fin 3 is provided with the over-hang part stretched out outside described baffle plate 4; Described phase-change material 2 is filled with in described seal cavity.Leak when absorbing heat melt to prevent phase-change material.
In the present embodiment, it is adopt the aluminium or copper one-tenth with high heat conductance that described fin 3 adopts, and adopts rectangular configuration.Large with the contact area of battery, contribute to the temperature distribution evenness improving battery pack.Fin stretches out the both sides of the edge of battery, for dispelling the heat with natural convection air.Described phase-change material 2 can be paraffin or phase transition temperature is lower, latent heat is larger other material.Phase-change material is placed on the both sides of battery pack, is used for auxiliary heat dissipation.Described baffle plate 4 is adopted and is made of aluminum or copper, and is used for sealing the heat in phase-change material and derivation phase-change material, accelerates heat radiation.
Operation principle of the present utility model:
When battery low-rate discharge, there is convection current in lithium-ion battery monomer 1 and fin 3, by the heat conduction of generation to fin 3.Fin 3 thermal conductivity is higher, can transfer heat to its over-hang part fast, the over-hang part of fin and air generation Natural Heat Convection.
When battery discharge multiplying power is higher, the heat that lithium-ion battery monomer 1 produces is more, and the heat that fin 3 is derived is less than the heat that battery produces, fin 3 occurs that heat is saturated, and now convection current occurs for phase-change material 2 and fin 3, absorbs heat, and store with the form of sensible heat, reduce the heat load of fin.When reaching phase transition temperature, phase-change material undergoes phase transition.When ambient temperature is lower, phase-change material can also play the effect of heating lithium-ion battery monomer 1 and being incubated.Therefore, phase-change material 2 pairs of battery heat radiations have good hot buffering effect.
The utility model selects fin structure, because fin area of dissipation is larger, conductive coefficient is high, be arranged on former and later two end faces of lithium-ion battery monomer, when battery power discharge multiplying power is not high, heat can shed by fin fast, and battery can be made to have good temperature homogeneity.
Under Natural Convection Conditions, when battery high rate discharge, single fin cooling is difficult to the temperature of battery to control in suitable temperature range, the utility model cools in conjunction with phase-change material, utilize the hot buffering effect of phase-change material, adopt and form seal cavity in battery both sides, phase-change material is filled to the structure in seal cavity, the temperature of battery can be controlled in optimum temperature range (20 DEG C-50 DEG C).
Although be described preferred embodiment of the present utility model by reference to the accompanying drawings above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, can also make a lot of form, these all belong within protection range of the present utility model.
Claims (2)
1. the heat management system of lithium ion battery in a power vehicle, described lithium ion battery comprises at least one battery pack, each described battery pack comprises the rectangle lithium-ion battery monomer that multiple front and back are arranged side by side, it is characterized in that, this heat management system comprises fin and phase-change material, former and later two end faces of each described lithium-ion battery monomer are respectively provided with a described fin, a seal cavity is each side formed at each described lithium-ion battery monomer, described seal cavity is surrounded by described lithium-ion battery monomer and corresponding with it two described fins and a baffle plate, described baffle plate and two described fins affixed, described fin is provided with the over-hang part stretched out outside described baffle plate, described phase-change material is filled with in described seal cavity.
2. the heat management system of lithium ion battery in power vehicle according to claim 1, it is characterized in that, described fin is rectangle aluminium flake or copper sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520997533.1U CN205159471U (en) | 2015-12-03 | 2015-12-03 | Lithium ion battery's thermal management system in power car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520997533.1U CN205159471U (en) | 2015-12-03 | 2015-12-03 | Lithium ion battery's thermal management system in power car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159471U true CN205159471U (en) | 2016-04-13 |
Family
ID=55695130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520997533.1U Expired - Fee Related CN205159471U (en) | 2015-12-03 | 2015-12-03 | Lithium ion battery's thermal management system in power car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406152A (en) * | 2015-12-03 | 2016-03-16 | 天津大学 | Thermal management system for lithium-ion battery in power car |
| CN106450572A (en) * | 2016-11-14 | 2017-02-22 | 中国科学院广州能源研究所 | System and method for partitioned heat management based on lithium ion battery pack |
-
2015
- 2015-12-03 CN CN201520997533.1U patent/CN205159471U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406152A (en) * | 2015-12-03 | 2016-03-16 | 天津大学 | Thermal management system for lithium-ion battery in power car |
| CN106450572A (en) * | 2016-11-14 | 2017-02-22 | 中国科学院广州能源研究所 | System and method for partitioned heat management based on lithium ion battery pack |
| CN106450572B (en) * | 2016-11-14 | 2018-10-23 | 中国科学院广州能源研究所 | A kind of system and method based on lithium ion battery component zone heat management |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ye et al. | Experimental study on heat dissipation for lithium-ion battery based on micro heat pipe array (MHPA) | |
| CN102280672B (en) | Vehicle-used heat pipe temperature control system of power battery box | |
| CN103138029A (en) | Thermal management system of lithium battery in hybrid power vehicle | |
| CN202758989U (en) | Battery system with multi-medium cooling source | |
| CN105161644A (en) | Flexibly-packaged single battery based battery box | |
| CN106450572A (en) | System and method for partitioned heat management based on lithium ion battery pack | |
| CN106252785A (en) | A kind of lithium battery module radiator structure | |
| CN206490115U (en) | Battery modules | |
| CN203617406U (en) | Water-cooling type lithium ion battery | |
| CN102569935B (en) | Radiating aluminum plates for flexible package battery pack | |
| CN103855441A (en) | Battery cooling system of novel energy vehicle | |
| CN105789733A (en) | Thermal management device and power source device | |
| CN102376997B (en) | Battery system with temperature adjusting device | |
| CN206134878U (en) | Lithium cell module heat radiation structure | |
| CN105406152A (en) | Thermal management system for lithium-ion battery in power car | |
| CN204289553U (en) | A kind of water-cooled cells bag | |
| CN205429112U (en) | Device of lithium cell among hybrid vehicle | |
| US20220223944A1 (en) | Battery pack and vehicle | |
| CN106374163A (en) | Thermal management system for batteries | |
| CN107579306A (en) | A kind of battery module cooled down based on air and phase-change material | |
| CN201699106U (en) | Flexible-package lithium-ion battery radiating structure | |
| CN203103466U (en) | Thermal management system for lithium batteries of hybrid electric vehicle | |
| CN106785199B (en) | A kind of Li-ion batteries piles power supply heat sinking device | |
| CN205159471U (en) | Lithium ion battery's thermal management system in power car | |
| CN207818842U (en) | A kind of power battery heat-radiating device |
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: 20160413 Termination date: 20181203 |