CN113823858A - Power battery heat management device - Google Patents
Power battery heat management device Download PDFInfo
- Publication number
- CN113823858A CN113823858A CN202110930095.7A CN202110930095A CN113823858A CN 113823858 A CN113823858 A CN 113823858A CN 202110930095 A CN202110930095 A CN 202110930095A CN 113823858 A CN113823858 A CN 113823858A
- Authority
- CN
- China
- Prior art keywords
- diffusion plate
- heat
- batteries
- power battery
- management device
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/643—Cylindrical cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to a power battery heat management device, which comprises a box body, a heat diffusion plate and a heating part, wherein the heat diffusion plate is arranged on the box body; the heat diffusion plate is arranged in the box body, and is provided with a plurality of through sleeves which are used for nesting the batteries and exchanging heat with the batteries; the heater block is the film form to the laminating is on the surface of thermal diffusion plate, and the interval is seted up the size and is greater than telescopic cup jointing hole on the heater block, and the cup jointing hole cup joints on corresponding the sleeve. According to the power battery heat management device, the heat diffusion plate is installed in the box body and sleeved on the plurality of groups of batteries, the batteries are cooled through air circulation when the batteries are at high temperature, and the batteries are heated by the heating parts on the surface of the heat diffusion plate when the batteries are at low temperature.
Description
Technical Field
The invention relates to the technical field of power battery thermal management, in particular to a power battery thermal management device.
Background
The lithium ion battery in the power battery has high energy density, small volume and long cycle life, and has great application potential on electric passenger vehicles and commercial vehicles. The working temperature of the battery, whether low temperature or high temperature, is a key factor influencing the service performance and the cycle performance of the battery.
The battery generates heat due to internal electrochemical reaction and joule heat during the working process, the temperature is increased, the service performance and the cycle life of the battery are influenced when the battery exceeds the proper temperature, and thermal runaway can be caused seriously even, so that accidents such as spontaneous combustion, explosion and the like are caused. For example, the temperature of a conventional ternary lithium positive electrode material battery needs to be controlled within 50 ℃ and the temperature difference of the battery needs to be controlled within 5 ℃ so as to avoid the aggravation of battery degradation, even thermal runaway and fire explosion, and improve safety. Although the working temperature of the battery using lithium iron phosphate as the anode material can be raised to 60 ℃, the capacity of the battery is obviously attenuated along with the further temperature rise, and thermal runaway and ignition phenomena still occur at high temperature.
The lack of means for managing temperature in conventional batteries has resulted in batteries that have poor performance in extreme environments, such as batteries that are more susceptible to thermal damage and thermal runaway when the battery temperature is high. And when the temperature is lower, the viscosity of the electrolyte in the battery is increased, lithium is easily deposited to form lithium dendrite, so that the capacity of the battery is reduced, and the lithium dendrite can puncture the diaphragm to generate internal short circuit and generate thermal runaway accidents in severe cases.
Disclosure of Invention
In view of the above, it is necessary to provide a thermal management device for a power battery, which can control the temperature of the battery, in order to solve the problem that the conventional battery lacks a temperature management device and the performance of the conventional battery is deteriorated in extreme environments.
A power battery thermal management device comprises a box body, a thermal diffusion plate and a heating part;
the heat diffusion plate is arranged in the box body, and is provided with a plurality of through sleeves which are used for nesting batteries and exchanging heat with the batteries;
the heating part is in a film shape and is attached to the surface of the heat diffusion plate, sleeving holes with the size larger than that of the sleeve are formed in the heating part at intervals, and the sleeving holes are sleeved on the corresponding sleeves.
Furthermore, the heat diffusion plate is provided with a plurality of through holes, and the sleeve is formed by extending the inner walls of the through holes along the axial direction of the through holes.
Further, the inner wall of the sleeve is provided with a heat conduction layer.
Furthermore, a plurality of groups of flow disturbing columns are installed on the heat diffusion plate at intervals, a plurality of groups of sleeving holes are formed in the surface of the heating component at intervals, and the sleeving holes are sleeved on the flow disturbing columns.
Furthermore, a plurality of groups of through holes arranged at intervals are correspondingly formed on the surface of the heat diffusion plate and the surface of the heating component.
Furthermore, the heating units of the heating parts are arranged among the batteries in series or in parallel.
Further, the width of the portion of the heating unit penetrating between the batteries is half of the width of the outer edge portion.
Further, the heating units are connected in a bending mode around the sleeving holes or the turbulence columns.
Furthermore, an air inlet and an air outlet are formed in two opposite side walls of the box body, a fan is installed in the air inlet and the air outlet, and a space is reserved between the fan and the heat diffusion plate.
Furthermore, an arc-shaped opening is formed in the front end of the heat diffusion plate, corresponds to the interval between the batteries, and is used for fan rotary air blowing, flow guiding and auxiliary flow distribution.
According to the power battery heat management device, the heat diffusion plate is installed in the box body and sleeved on the plurality of groups of batteries, the batteries are cooled through air circulation when the batteries are at high temperature, and the batteries are heated by the heating parts on the surface of the heat diffusion plate when the batteries are at low temperature.
Drawings
FIG. 1 is a schematic structural diagram of a power battery thermal management device;
FIG. 2 is a schematic structural diagram of a via;
FIG. 3 is a schematic structural view of a through hole;
FIG. 4 is a schematic structural view of a turbulence column;
FIG. 5 is a schematic diagram of a series arrangement of heating units;
FIG. 6 is a schematic diagram of the parallel connection of the heating units;
FIG. 7 is a schematic view showing a bent portion of the heating unit;
FIG. 8 is a plan view of a simulation of the temperature profile at an unbalanced temperature;
FIG. 9 is a three-dimensional simulation of a temperature profile at an unbalanced temperature;
FIG. 10 is a graph of temperature rise of a central battery of a module at an unbalanced temperature;
FIG. 11 is a plan view of a simulation of the temperature profile at equilibrium temperature;
FIG. 12 is a three-dimensional simulation of temperature profiles at equilibrium temperatures;
fig. 13 is a graph of temperature rise of cells No. 1-5 at equilibrium temperature.
In the figure: 100. a box body; 200. a heat diffusion plate; 210. a through hole; 211. a sleeve; 220. a through hole; 300. a heating member; 310. an insulating film; 311. sleeving a hole; 320. a heating unit; 400. a turbulence column; 500. a fan; 60. a battery.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, in one embodiment, a thermal management device for a power battery includes a case 100, a heat diffusion plate 200, and a heating member 300. The heat diffusion plate 200 is installed in the cabinet 100, the heat diffusion plate 200 has a plurality of penetrating sockets 211, the sockets 211 are used for nesting the batteries 60 and performing heat exchange with the batteries 60, the heating member 300 is in a film shape and is attached to the surface of the heat diffusion plate 200, sleeving holes with the size larger than that of the sockets are arranged on the heating member 300 at intervals, and the sleeving holes are sleeved on the corresponding sockets 211.
According to the power battery thermal management device, the thermal diffusion plate 200 is installed in the box body 100, the thermal diffusion plate 200 is sleeved on the plurality of groups of batteries 60, the batteries 60 are cooled through air circulation when the batteries 60 are at high temperature, and the heating parts 300 on the surface of the thermal diffusion plate 200 heat the batteries 60 when the batteries 60 are at low temperature.
In practical use, a plurality of groups of batteries 60 can be arranged in the box body 100 at intervals, and the batteries 60 can be in a polygonal column or a cylindrical shape and can adopt different packaging forms such as aluminum plastic soft packages. The box body 100 is cooled by air, and the material of the box body 100 is metal aluminum and is provided with reinforcing ribs. The reinforcing ribs not only increase the mechanical strength and impact resistance of the box body 100, but also increase the surface area of the box body 100 and accelerate the heat transfer effect of the surface of the box body 100.
As shown in fig. 2, in the present embodiment, at least one set of heat diffusion plates 200 is installed in the case 100, and in order to further reduce the temperature rise and temperature gradient in the case 100, a plurality of layers of heat diffusion plates 200 may be installed in the case 100. The edge of the thermal diffusion plate 200 is tightly attached to the inner wall of the box 100, and the edge of the thermal diffusion plate 200 is bent and connected with the box 100 through bolts to play a role in sealing and positioning.
In terms of material selection, the thermal diffusion plate 200 may be made of high thermal conductivity metal plates such as aluminum, copper, titanium, iron, etc., and the thickness range thereof is 0.5mm to 5mm, which not only has high thermal conductivity, but also is easy to process. The surface of the aluminum alloy is provided with an oxide film layer with electric insulation strength after anodic oxidation passivation treatment, and the anodic oxidized aluminum or the alloy thereof improves the hardness and the wear resistance and has excellent electric insulation property.
The heat diffusion plate 200 can increase the heat convection area to reduce the maximum temperature difference, and the heat diffusion plate 200 is made of a material with a high heat conductivity coefficient, such as aluminum, copper, titanium, and the like, and has reverse heat conductivity, so that the temperature difference between the upstream and the downstream of the battery 60 can be reduced, and the temperature uniformity of the battery 60 can be improved.
As shown in fig. 3, in the present embodiment, the heat diffusion plate 200 has a plurality of through holes 210, and the sleeves 211 are formed by extending inner walls of the through holes 210 in an axial direction of the through holes 210. The sleeve 211 is arranged to be unidirectional, while the sleeve 211 can be bidirectional in use, in which a double-layer structure is disassembled, one part is integrally processed, and the other part is welded and combined.
The inner edge of the through hole 210 of the thermal diffusion plate 200 is machined or punched to form the sleeve 211 structure, so that the heat conduction area between the thermal diffusion plate 200 and the battery 60 can be increased, and the mechanical stability and the heat conduction efficiency can be improved.
In this embodiment, the inner wall of the sleeve 211 is provided with a heat conducting layer. The heat conduction layer is a heat conduction adhesive layer which takes polyurethane, organic silicon, epoxy resin or acrylic acid as a matrix and has heat conductivity not less than 0.2W/mK. Firstly, it is abundant to guarantee the heat conduction contact surface between sleeve 211 and the battery 60, avoids the heat conduction cavity area that the space that local area formed because of reasons such as processing, assembly caused, reduces thermal contact resistance.
In the present embodiment, a plurality of sets of through holes 220 are formed on the surface of the heat diffusion plate 200 and the surface of the heating element 300. The wind resistance can be reduced, and the wind quantity of the upper and lower sides of the thermal diffusion plate 200 can be balanced.
The through holes 220 and the sleeves 211 on the heat diffusion plate 200 can be integrally processed in a CNC (computer numerical control), the through holes 220 and the sleeves 211 on the multi-layer heat diffusion plate 200 can be integrally processed in the CNC in a layered mode and then welded into a whole, the sleeves 211 can face upwards or downwards, and the heat diffusion plate is simple in structure and beneficial to processing.
As shown in fig. 4, in the present embodiment, a plurality of groups of turbulence columns 400 are mounted on the heat diffusion plate 200 at intervals. And the turbulence columns 400 penetrate the thermal diffusion plate 200, and both ends of the turbulence columns 400 are respectively located in different spaces above and below the thermal diffusion plate 200.
In practical use, the cross-section of the spoiler post 400 is not particularly limited, and may be circular, square, diamond, or star-shaped. On one hand, the heat exchange area can be increased, on the other hand, the turbulent flow heat exchange characteristic of air can be enhanced, the convection heat exchange coefficient is improved, and the highest temperature of the battery 60 is reduced.
As shown in fig. 5, 6 and 7, in the present embodiment, the heating member 300 includes a heating unit 320 and an insulating film 310; the heating unit 320 is sandwiched between the two sets of insulation films 310, a plurality of sets of sleeving holes 311 are correspondingly formed in the insulation films 310 and the surfaces of the heating unit 320 at intervals, the sleeving holes 311 are sleeved on the turbulence columns 400, the heating unit 320 is arranged between the batteries 60 in series or in parallel, the width of the part, penetrating between the batteries 60, of the heating unit 320 is half of the width of the outer edge part, the heating unit 320 is connected around the sleeving holes 311 or the turbulence columns 400 in a bending mode, namely, the heating unit 320 is arranged in a bending mode at the position close to the sleeving holes 311 or the turbulence columns 400 so as to avoid the sleeving holes 311 or the turbulence columns 400.
Specifically, the heating unit 320 may be a conductive film, the insulating film 310 may be a polyimide film, and the two polyimide films are pressed against one conductive film to generate joule heat after being energized, so as to conduct the heat to the battery 60 through the heat diffusion plate 200 and the sleeve 211, thereby rapidly heating the battery 60. And the thickness of the conductive film is usually in the range of dozens of micrometers to 200 micrometers, the heating efficiency is basically 100%, the heating speed is high, and the function of quickly adjusting the temperature can be realized.
Because battery outer fringe heating element only heats one side battery, the required heating volume of intensification is lower than inside, for guaranteeing that battery outer fringe and inside intensification rate are close, through the width of the electrically conductive diaphragm of different positions department in adjustment heating part 300, and the thickness of electrically conductive diaphragm all keeps unanimous in the processing, the joule heat that makes the electrically conductive diaphragm produce is different, wherein the width of the inside electrically conductive diaphragm of battery 60 module is less, resistance is big, the joule heat that produces is great, and the electrically conductive diaphragm width in edge is great, resistance is less, it is less to produce the heat, it is roughly the same with inside temperature to guarantee edge battery 60 temperature, promote heating part 300 temperature distribution more even, it is also more even to heat battery 60 module, battery 60 life and reliability have been improved.
In this embodiment, the opposite two sidewalls of the box 100 are provided with an air inlet and an air outlet, the fan 500 is installed in the air inlet and the air outlet, and a space is left between the fan 500 and the thermal diffusion plate 200. The fan 500 is preferably installed at the air outlet to reduce the backflow effect at the tail end of the thermal diffusion plate 200, and also to prevent cold air from directly blowing the battery 60, thereby reducing the temperature unevenness of the battery 60, and the two are mutually matched to form a forced convection active air cooling heat dissipation structure.
The front end of the thermal diffusion plate is provided with an arc-shaped opening, and the arc-shaped opening corresponds to the interval between the batteries and is used for fan rotary air blowing, drainage and auxiliary distribution of flow.
The heat management device for the power battery further enhances the heat dissipation effect by arranging the air inlet and the air outlet to form a forced convection air duct and adding heat dissipation means such as the turbulence column 400 and the vent hole. Since the heating member 300 is thin, it has a small thickness and a small thermal resistance, and does not substantially affect the air cooling and heat dissipating capability of the side surface. The heating and forced convection heat dissipation functions are simple to realize and low in cost: the heat diffusion plate 200 is easy to machine, low in cost, high in toughness, low in hardness, capable of absorbing stress due to bending deformation when impacted, suitable for the impact strength of the power battery 60 due to buffering, and capable of being produced on a large scale due to the fact that the heating film is of a light flexible structure, does not change the module structure and grouping efficiency of the battery 60, and has excellent machining and production performance.
Specifically, the fan 500 disposed at the air inlet is a centrifugal blower fan, and the fan 500 disposed at the air outlet is an axial flow exhaust fan, so as to enhance the air convection effect.
As shown in fig. 8 and 9, in the computer numerical simulation process, the material of the thermal diffusion plate 200 is aluminum alloy 6061, the material of the bottom of the battery module is insulating rubber, the thickness of the thermal diffusion plate 200 is 4.5mm, the model number of the battery 60 is 18650 lithium battery 60 (where 18 denotes the diameter of 18mm, 65 denotes the length of 65mm, and 0 denotes the battery 60), the heating power of the heating component 300 with unbalanced production temperature corresponds to the temperature rise rate of 3 ℃/min of the battery 60, the heating value is 46W, and the ambient temperature is 0 ℃.
Simulation results are as follows: in the environment of 0 ℃, the power set by the heating component 300 with unbalanced temperature is 3 ℃/min corresponding to the temperature rise rate of the battery 60, and after the battery 60 is heated for 600s, the thermal diffusion plate 200 and the temperature cloud chart of the battery module are obtained.
As shown in fig. 10, the heating power of the heating member 300 with unbalanced temperature corresponds to the temperature rise rate of the battery 60 of 3 ℃/min, when the ambient temperature is 0 ℃, the temperature rises corresponding to different batteries 60 in the battery module are close to the simulation result, the maximum deviation is 3.28%, the serial numbers of the related batteries 60 are arranged as shown in fig. 5, but the widths of the conductive membranes are not set differently.
The experimental results are as follows: in the environment of 0 ℃, the power set by the heating component 300 with unbalanced temperature corresponds to the temperature rise rate of the battery 60 of 3 ℃/min, and after the battery 60 is heated for 600s, the power corresponds to the average temperature of the battery 60.
As shown in fig. 11 and 12, in the computer numerical simulation process, the material of the thermal diffusion plate 200 is aluminum alloy 6061, the material of the bottom of the battery 60 module is electrically insulating material, the thickness of the thermal diffusion plate 200 is 4.5mm, the heating power of the heating component 300 with balanced production temperature of the battery 60 model 18650 lithium battery 60 (where 18 denotes the diameter of 18mm, 65 denotes the length of 65mm, and 0 denotes the battery 60) corresponds to the heating condition of the battery 60 at the temperature rise rate of 3 ℃/min, the heating value is 46W, and the ambient temperature is 0 ℃.
Simulation results are as follows: in the environment of 0 ℃, the power set by the heating component 300 for balancing the production temperature is 3 ℃/min corresponding to the temperature rise rate of the battery 60, and after the battery 60 is heated for 600s, the thermal diffusion plate 200 and the temperature cloud chart of the battery module are obtained.
FIG. 13 shows the results of the thermal management test: and (3) temperature rise at the discharge rate of the battery module 3C in a 24.5 +/-0.5 ℃ environment and forced air cooling.
When the battery module is at 3C discharge rate and 1.0m/s wind speed, the maximum temperature rise of the battery module is 12.9 ℃, the maximum temperature is 37.4 ℃, and the maximum temperature difference after discharge is 2.83 ℃, so that the thermal management requirement of the battery module is met. The relevant cells 60 are numbered as shown in fig. 5, but the width of the conductive film is not set differently.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The power battery heat management device is characterized by comprising a box body, a heat diffusion plate and a heating part;
the heat diffusion plate is arranged in the box body, and is provided with a plurality of through sleeves which are used for nesting batteries and exchanging heat with the batteries;
the heating part is in a film shape and is attached to the surface of the heat diffusion plate, sleeving holes with the size larger than that of the sleeve are formed in the heating part at intervals, and the sleeving holes are sleeved on the corresponding sleeves.
2. The power battery heat management device according to claim 1, wherein the heat diffusion plate is provided with a plurality of through holes, and the sleeve is formed by extending inner walls of the through holes along the axial direction of the through holes.
3. The power battery thermal management device according to claim 2, wherein the inner wall of the sleeve is provided with a heat conducting layer.
4. The power battery heat management device according to claim 1, wherein a plurality of groups of turbulence columns are installed on the heat diffusion plate at intervals, and a plurality of groups of sleeving holes are formed in the surface of the heating component at intervals and sleeved on the turbulence columns.
5. The power battery heat management device according to claim 1, wherein a plurality of groups of through holes are formed in the surface of the heat diffusion plate and the surface of the heating component at intervals.
6. The power battery heat management device according to claim 1, wherein the heating units of the heating parts are arranged in series or in parallel between the batteries.
7. The power battery thermal management device according to claim 6, wherein the width of the portion, where the heating unit is arranged between the batteries, is half of the width of the outer edge portion.
8. The power battery thermal management device according to claim 7, wherein the heating unit is connected around the sleeving hole or the spoiler column in a bending manner.
9. The power battery heat management device according to claim 1, wherein an air inlet and an air outlet are formed in two opposite side walls of the box body, a fan is installed in the air inlet and the air outlet, and a space is reserved between the fan and the heat diffusion plate.
10. The power battery thermal management apparatus according to claim 9, wherein the heat spreading plate is provided with arc-shaped openings at the front end thereof, the arc-shaped openings corresponding to the intervals between the batteries for blowing air, guiding the air and assisting in distributing the flow by rotating a fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110930095.7A CN113823858B (en) | 2021-08-13 | 2021-08-13 | Power battery thermal management device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110930095.7A CN113823858B (en) | 2021-08-13 | 2021-08-13 | Power battery thermal management device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113823858A true CN113823858A (en) | 2021-12-21 |
| CN113823858B CN113823858B (en) | 2023-05-02 |
Family
ID=78922756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110930095.7A Active CN113823858B (en) | 2021-08-13 | 2021-08-13 | Power battery thermal management device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113823858B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001313090A (en) * | 2000-04-28 | 2001-11-09 | Sanyo Electric Co Ltd | Power supply device |
| CN101304106A (en) * | 2008-06-20 | 2008-11-12 | 重庆大学 | Heat radiation system of nickel-hydrogen battery set for hybrid power vehicle |
| US20080280192A1 (en) * | 2007-02-09 | 2008-11-13 | Advanced Lithium Power Inc. | Battery thermal management system |
| CN102082314A (en) * | 2009-11-26 | 2011-06-01 | 中国移动通信集团甘肃有限公司 | Device and system for controlling temperature of storage battery |
| CN103633395A (en) * | 2013-11-05 | 2014-03-12 | 奇瑞汽车股份有限公司 | Battery pack temperature control system and control method thereof |
| CA2887537A1 (en) * | 2014-04-16 | 2015-10-16 | Southwest Electronic Energy Corporation | Tri-layer material for heat spreading in battery pack modules |
| CN105449311A (en) * | 2015-12-31 | 2016-03-30 | 北京工业大学 | Liquid heat exchange battery module structure |
| CN205646065U (en) * | 2016-05-06 | 2016-10-12 | 上海工程技术大学 | Air -cooled power battery heat abstractor |
| CN106374162A (en) * | 2016-11-02 | 2017-02-01 | 上海工程技术大学 | Battery module heat management method and apparatus based on thermo-electric effect |
| US20170295640A1 (en) * | 2016-04-07 | 2017-10-12 | Fujitsu Limited | Electronic device |
| CN207517751U (en) * | 2017-09-21 | 2018-06-19 | 深圳市沃特玛电池有限公司 | A kind of heat conduction battery module device |
| CN108419312A (en) * | 2018-05-11 | 2018-08-17 | 华霆（合肥）动力技术有限公司 | Heating film and supply unit |
| US20180261804A1 (en) * | 2017-03-09 | 2018-09-13 | Science Applications International Corporation | Battery Assembly |
-
2021
- 2021-08-13 CN CN202110930095.7A patent/CN113823858B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001313090A (en) * | 2000-04-28 | 2001-11-09 | Sanyo Electric Co Ltd | Power supply device |
| US20080280192A1 (en) * | 2007-02-09 | 2008-11-13 | Advanced Lithium Power Inc. | Battery thermal management system |
| CN101304106A (en) * | 2008-06-20 | 2008-11-12 | 重庆大学 | Heat radiation system of nickel-hydrogen battery set for hybrid power vehicle |
| CN102082314A (en) * | 2009-11-26 | 2011-06-01 | 中国移动通信集团甘肃有限公司 | Device and system for controlling temperature of storage battery |
| CN103633395A (en) * | 2013-11-05 | 2014-03-12 | 奇瑞汽车股份有限公司 | Battery pack temperature control system and control method thereof |
| CA2887537A1 (en) * | 2014-04-16 | 2015-10-16 | Southwest Electronic Energy Corporation | Tri-layer material for heat spreading in battery pack modules |
| CN105449311A (en) * | 2015-12-31 | 2016-03-30 | 北京工业大学 | Liquid heat exchange battery module structure |
| US20170295640A1 (en) * | 2016-04-07 | 2017-10-12 | Fujitsu Limited | Electronic device |
| CN205646065U (en) * | 2016-05-06 | 2016-10-12 | 上海工程技术大学 | Air -cooled power battery heat abstractor |
| CN106374162A (en) * | 2016-11-02 | 2017-02-01 | 上海工程技术大学 | Battery module heat management method and apparatus based on thermo-electric effect |
| US20180261804A1 (en) * | 2017-03-09 | 2018-09-13 | Science Applications International Corporation | Battery Assembly |
| CN207517751U (en) * | 2017-09-21 | 2018-06-19 | 深圳市沃特玛电池有限公司 | A kind of heat conduction battery module device |
| CN108419312A (en) * | 2018-05-11 | 2018-08-17 | 华霆（合肥）动力技术有限公司 | Heating film and supply unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113823858B (en) | 2023-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109037726B (en) | Air-cooled module for heat transfer and temperature equalization of fuel cell | |
| WO2017092073A1 (en) | Battery unit, battery module and battery pack | |
| US20090142653A1 (en) | Battery system with battery cells arranged in array alignment | |
| CN205863347U (en) | A kind of set of cells with thermal management | |
| EP4026714A1 (en) | Battery pack and vehicle | |
| CN111864302B (en) | Power battery pack heat dissipation management system | |
| CN204230380U (en) | A kind of heat management device of power battery | |
| CN110518309B (en) | Multi-cooling-mode power battery heat dissipation device | |
| CN205646065U (en) | Air -cooled power battery heat abstractor | |
| CN107623094A (en) | A kind of lithium battery fixed border and lithium battery module | |
| CN213752809U (en) | Battery pack and vehicle | |
| CN113823858A (en) | Power battery heat management device | |
| CN216488247U (en) | Battery core, battery module and battery pack | |
| CN217589100U (en) | Battery module | |
| CN111192988B (en) | Novel battery box with internal thermal management system for electric automobile and working method of novel battery box | |
| CN214123965U (en) | Heating and cooling structure, tray assembly, battery pack upper cover and battery pack | |
| CN212571125U (en) | Power battery pack heat dissipation management system | |
| CN211376741U (en) | Power lithium battery thermal management box | |
| CN209822709U (en) | Lithium battery temperature control device | |
| CN209860113U (en) | Cylindrical battery module liquid cooling system | |
| CN210272566U (en) | Storage battery module of electric automobile | |
| CN206250235U (en) | A kind of lithium battery fixed border and lithium battery module | |
| CN111180827A (en) | Novel cylindrical lithium battery thermal management structure | |
| CN109066007B (en) | Large-scale battery module integration box cooling system based on heat pipe | |
| CN106785180A (en) | The heat dissipating method of large-scale cylindrical secondary battery module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |