CN112290119A - Air cooling structure of multi-channel battery pack of electric automobile - Google Patents
Air cooling structure of multi-channel battery pack of electric automobile Download PDFInfo
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- CN112290119A CN112290119A CN202011183039.3A CN202011183039A CN112290119A CN 112290119 A CN112290119 A CN 112290119A CN 202011183039 A CN202011183039 A CN 202011183039A CN 112290119 A CN112290119 A CN 112290119A
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- 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
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- 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
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- 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
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- 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
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Sustainable Energy (AREA)
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Abstract
The invention discloses an air cooling structure of a multi-channel battery pack of an electric automobile, which comprises a battery body and a cooling device, wherein the cooling device is used for cooling the battery body; the cooling device comprises a cooling chamber, a double-shaft cylinder, a piston plate, a one-way air inlet pipe, a cooling pipe and a one-way air outlet valve; the cooling chamber is arranged in a concave shape, and the battery body is wrapped by the concave part of the cooling chamber; and the upper surface of the battery is lower than the upper surface of the cooling chamber; a cavity is arranged in the cooling chamber; according to the invention, the water flowing out of the liquid outlet groove is completely absorbed and stored through the water absorption pad, so that excessive water is prevented from dropping on the battery body because the cooling water flows all the time, the utilization rate of the cooling water is improved, automatic liquid outlet is realized, the attached water absorption pad can uniformly coat the water on the surface of the battery body, and the cooling efficiency is further improved by matching with the accelerated sprayed air flow.
Description
Technical Field
The invention belongs to the technical field of electric automobile battery cooling, and particularly relates to an air cooling structure of an electric automobile multi-channel battery pack.
Background
Environmental pollution, energy crisis and global carbon dioxide emission reduction, people need to reduce the dependence on fossil energy and search for new energy substitutes. In the automobile industry, electric automobiles are vigorously developed, the technical performance of power batteries breaks through the limitation of a plurality of external conditions, particularly the limitation of temperature conditions, and good running temperature is the premise that the power batteries work safely and efficiently. The battery temperature is a key factor for restricting the performance improvement of the electric automobile, and the high temperature has double influences on the power battery.
On one hand, along with the temperature rise, the activity of the electrolyte is improved, the ion diffusion speed is accelerated, the internal resistance of the battery is reduced, and the performance of the battery is improved;
on the other hand, higher temperatures can lead to detrimental reactions such as electrode degradation and electrolyte decomposition, affecting the service life of the battery, and even causing permanent damage to the internal junction structure of the battery. Studies have shown that chemical reaction rates are related to temperature by the number of poles, and that for every 10 ℃ increase in temperature, the chemical reaction rate doubles. When operated at higher temperatures, such as 45 c ambient temperature, the number of nickel-metal hydride battery cycles is reduced by about 60%. At high rate charging, the temperature rises by 5 ℃, and the battery life is halved. On the contrary, in a low-temperature environment, because the activity of the electrolyte is low, the ion diffusion speed is slow, the internal resistance of the battery is greatly increased, the discharge capacity is obviously reduced, the internal pressure rises fast during the charging period, and the use safety of the battery is influenced. In summary, the proper operating temperature is a prerequisite for the good performance of the battery.
Therefore, it is necessary to provide an air cooling structure for a multi-channel battery pack of an electric vehicle, which can automatically cool a battery during a long-time driving of the electric vehicle in a mountainous terrain, so that the battery can be in a high-efficiency working state.
Disclosure of Invention
In view of the above problems, the present invention provides an air cooling structure for a multi-channel battery pack of an electric vehicle, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an air cooling structure of a multi-channel battery pack of an electric automobile comprises a battery body and a cooling device, wherein the cooling device is used for cooling the battery body; the cooling device comprises a cooling chamber, a double-shaft cylinder, a piston plate, a one-way air inlet pipe, a cooling pipe and a one-way air outlet valve; the cooling chamber is arranged in a concave shape, and the battery body is wrapped by the concave part of the cooling chamber; and the upper surface of the battery is lower than the upper surface of the cooling chamber; a cavity is arranged in the cooling chamber; the bottom surface of the battery body is directly contacted with the cavity, and the double-shaft cylinder is fixedly arranged on the bottom surface of the battery body; the end parts of the telescopic rods of the double-shaft cylinder are respectively and fixedly provided with a piston plate; the piston plate can slide left and right in the cavity under the pushing of the double-shaft cylinder; the bottom of the cooling chamber is fixedly connected with two cooling pipes; one of the cooling pipes is communicated with outside air, and the other cooling pipe is communicated with the space in the automobile; two sides of the cooling chamber are fixedly connected with a one-way air inlet pipe; the other end of the one-way air inlet pipe is provided with two fork pipes, one end of each fork pipe is communicated with the outside, and the other end of each fork pipe is communicated with the space inside the automobile; the side walls of the two sides of the cooling chamber recess are respectively provided with an air outlet; the air outlets are internally provided with one-way air outlet valves, and the air flow sprayed out of the air outlets faces the upper surface of the battery body; the one-way air outlet valve is used for controlling the one-way ejection of the air in the cavity.
Preferably, a cooling pool is arranged above the upper surface of the battery body; cooling water is filled in the cooling tank, and a liquid injection port is formed above the cooling tank; two sides of the cooling pool are fixedly connected to the side walls of the two sides of the concave part of the cooling chamber respectively; a group of liquid outlets are arranged below the cooling pool, and liquid outlet columns are arranged in the liquid outlets; and a liquid outlet groove is arranged on the outer surface of the liquid outlet column and is used for discharging cooling water.
Preferably, the number of the liquid outlets is at least three, and a water absorption pad is arranged below the cooling chamber; the water absorption pad is fixed with the bottom surface of the liquid outlet column, and an arc-shaped sheet is connected between the water absorption pad and the cooling chamber; the arc-shaped sheet is made of a memory alloy material, and the arc-shaped sheet gradually extends and straightens along with the rise of the temperature, so that the water absorption pad is pushed to gradually approach the upper surface of the battery body until the water absorption pad is attached to the upper surface of the battery body; the liquid outlet groove is positioned at the upper part of the liquid outlet column.
Preferably, a straight groove is arranged at the bottom of the liquid outlet column; a spring is fixedly connected in the straight groove; one end of the spring is fixedly connected to the top wall of the straight groove, and the other end of the spring is fixedly connected to the upper surface of the water absorption pad.
Preferably, the water absorption pad is made of aluminum silicate cotton, a group of transverse shallow grooves are formed in the lower surface of the water absorption pad, and the shallow grooves are used for allowing air discharged from the air outlet to pass through.
Preferably, a group of heat absorbing sheets are arranged in the cooling chamber at a position close to the one-way air inlet pipe; the heat absorbing sheet is made of an aluminum alloy material.
Preferably, the heat absorbing sheets are arranged in a wave shape, the heat absorbing sheets are distributed from top to bottom, and the number of the heat absorbing sheets is at least three.
Preferably, the bottom of one end of each heat absorbing sheet is fixedly connected with a balancing weight.
The invention has the technical effects and advantages that:
1. according to the automobile air conditioner, external air and air in an automobile are sucked through the one-way air inlet pipe, when the air conditioner is started to cool the automobile in summer, the temperature in the automobile is obviously lower than the external air, and the introduced cold air can be rapidly supplemented into the cavity, so that on one hand, heat exchange can be carried out between the introduced cold air and the battery body to cool the battery body, and on the other hand, preparation can be made for next spraying; the air conditioner is started in the automobile to heat up in winter, the temperature in the automobile is obviously lower than the outside, cold air and hot air can generate water mist alternately when being led into the cavity, the gas with the water mist is sprayed above the battery body, and the cooling effect is further improved;
2. according to the invention, cooling water in the cooling tank flows downwards through the liquid outlet arranged on the liquid outlet column under the action of the gravity of the cooling tank, so that the cooling water drops above the battery body, air can be circulated by gas discharged from the gas outlet, the battery body with cooling water drops attached to the air circulation environment can accelerate the evaporation speed of the water drops, the evaporation is a gasification process, and the gasification can take away more heat of the battery body compared with the flow of the air, so that the cooling speed of the battery body is accelerated;
3. according to the invention, the water flowing out of the liquid outlet groove is completely absorbed and stored through the water absorption pad, so that excessive water is prevented from dropping on the battery body because the cooling water flows all the time, the utilization rate of the cooling water is improved, automatic liquid outlet is realized, the attached water absorption pad can uniformly coat the water on the surface of the battery body, and the cooling efficiency is further improved by matching with the accelerated sprayed air flow.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1 of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of section B of FIG. 2 of the present invention;
fig. 5 is a perspective view of the absorbent pad of the present invention.
In the figure: 1. a cooling chamber; 2. a double-shaft cylinder; 3. a piston plate; 4. a one-way air inlet pipe; 5. a cooling tube; 6. a battery body; 7. an air outlet; 8. a cooling pool; 9. discharging a liquid column; 10. a liquid outlet groove; 11. a water absorbent pad; 12. an arc-shaped sheet; 13. a spring; 14. shallow-groove; 15. a heat absorbing sheet; 16. and a balancing weight.
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.
The invention provides an air cooling structure of a multi-channel battery pack of an electric automobile, which comprises a battery body 6 and a cooling device, wherein the cooling device is used for cooling the battery body 6; the cooling device comprises a cooling chamber 1, a double-shaft cylinder 2, a piston plate 3, a one-way air inlet pipe 4, a cooling pipe 5 and a one-way air outlet valve; the cooling chamber 1 is arranged in a concave shape, and the battery body 6 is wrapped in the concave part of the cooling chamber 1; and the upper surface of the battery is lower than the upper surface of the cooling chamber 1; a cavity is arranged in the cooling chamber 1; the bottom surface of the battery body 6 is directly contacted with the cavity, and the double-shaft cylinder 2 is fixedly arranged on the bottom surface of the battery body 6; the end parts of the telescopic rods of the double-shaft cylinder 2 are respectively and fixedly provided with a piston plate 3; the piston plate 3 can slide left and right in the cavity under the pushing of the double-shaft cylinder 2; the bottom of the cooling chamber 1 is fixedly connected with two cooling pipes 5; one of the cooling pipes 5 communicates with the outside air, and the other communicates with the space inside the automobile; two sides of the cooling chamber 1 are fixedly connected with a one-way air inlet pipe 4; the other end of the one-way air inlet pipe 4 is provided with two fork pipes, one end of each fork pipe is communicated with the outside, and the other end of each fork pipe is communicated with the space inside the automobile; the side walls of the two sides of the sunken part of the cooling chamber 1 are respectively provided with an air outlet 7; a one-way air outlet valve is arranged in each air outlet 7, and air flow sprayed out of the one-way air outlets 7 faces to the upper surface of the battery body 6; the one-way gas outlet valve is used for controlling gas in the cavity to be ejected in a one-way mode; through the cooling chamber 1 arranged on the outer side, in the working process of the battery, the controller arranged on the double-shaft cylinder 2 can control the double-shaft cylinder 2 to start, two telescopic rods of the double-shaft cylinder 2 can synchronously extend towards two sides, so as to drive the connected piston plate 3 to move, the piston plate 3 can compress the gas in the cavities on the two sides in the moving process, so that the gas is sprayed out from the gas outlet 7, the sprayed gas faces to the upper surface of the battery body 6, the flow velocity of the air flow above the battery body 6 is accelerated, the cooling effect of the battery body 6 is accelerated, when the double-shaft cylinder 2 controls the piston plate 3 to return, negative pressure is formed in the cavity after the gas is discharged, so that the external gas and the gas in the automobile are sucked through the one-way air inlet pipe 4, when the air conditioner is started to cool the automobile in summer, the temperature in the automobile is obviously lower than the outside, the introduced, on one hand, the battery can exchange heat with the battery body 6 to cool, and on the other hand, the battery can be prepared for next spraying; the air conditioner is started in the automobile to heat up in winter, the temperature in the automobile is obviously lower than the outside, cold air and hot air can alternately generate water mist when being led into the cavity, the gas with the water mist is sprayed above the battery body 6, and the cooling effect is further improved; the principle of the gas entering the cooling pipe 5 is the same as that of the cooling pipe 5, and details are not described herein, and since the bottom surface of the battery body 6 is in direct contact with the cavity, the cold air introduced into the cooling pipe 5 is in direct contact with the bottom of the battery body 6, thereby accelerating the overall cooling efficiency.
As a specific embodiment of the present invention, a cooling pool 8 is provided above the upper surface of the battery body 6; cooling water is contained in the cooling tank 8, and a liquid injection port is formed above the cooling tank 8; two sides of the cooling pool 8 are respectively fixedly connected with the side walls of two sides of the sunken part of the cooling chamber 1; a group of liquid outlets are arranged below the cooling pool 8, and liquid outlet columns 9 are arranged in the liquid outlets; a liquid outlet groove 10 is formed in the outer surface of the liquid outlet column 9, and the liquid outlet groove 10 is used for discharging cooling water; through the cooling pond 8 that is equipped with in the top, in the cooling process, the cooling water in the cooling pond 8 can be through the liquid outlet that is provided with down flow on going out the liquid post 9 under the action of gravity of self, thereby the drop is in the top of battery body 6, 7 gas outlet gas can make the circulation of air this moment, and battery body 6 that is attached to the cooling water droplet in the environment of circulation of air, can make the speed of water droplet evaporation accelerate, the evaporation is gasification process, gasification can take away more heats of battery body 6 than the flow of air, thereby the cooling rate of battery body 6 has been accelerated.
As a specific embodiment of the present invention, the number of the liquid outlets is at least three, and a water absorption pad 11 is arranged below the cooling chamber 1; the water absorption pad 11 is fixed with the bottom surface of the liquid outlet column 9, and an arc-shaped sheet 12 is connected between the water absorption pad 11 and the cooling chamber 1; the arc-shaped sheet 12 is made of a memory alloy material, and the arc-shaped sheet 12 gradually extends and straightens along with the rise of the temperature, so that the water absorption pad 11 is pushed to gradually approach the upper surface of the battery body 6 until the water absorption pad is attached to the upper surface of the battery body; the liquid outlet groove 10 is positioned at the upper part of the liquid outlet column 9; the water absorption pad 11 is arranged at the bottom of the liquid outlet column 9, the memory alloy is in a stretching state in an initial state, when the battery body 6 radiates heat when working, the arc-shaped sheet 12 made of the memory alloy is restored to the stretching state from a compressed state under the action of the heat, so that the water absorption pad 11 connected with the water absorption pad is pushed to approach the battery body 6 until the battery body is just contacted with the battery body, the water absorption pad 11 can also drive the liquid outlet column 9 to move downwards until the liquid outlet groove 10 on the liquid outlet column 9 just communicates the inside of the cooling pool 8 with the space below, cooling water is smoothly led out, the water flowing out from the liquid outlet groove 10 can be completely absorbed and stored by the water absorption pad 11 at the moment, the phenomenon that the cooling water flows all the time to cause excessive water to fall on the battery body 6 is avoided, the utilization rate of the cooling water is improved, automatic liquid outlet is realized, and the attached water absorption pad 11 can, the cooling efficiency is further improved by matching with the accelerated sprayed air flow; when the working temperature of the battery is not reduced, the arc-shaped sheet 12 made of the memory alloy gradually returns to the compressed state, the water absorption pad 11 returns along with the arc-shaped sheet, and the liquid outlet groove 10 is not communicated with liquid outlet.
As a specific embodiment of the present invention, a straight groove is arranged at the bottom of the liquid outlet column 9; a spring 13 is fixedly connected in the straight groove; one end of the spring 13 is fixedly connected to the top wall of the straight groove, and the other end of the spring is fixedly connected to the upper surface of the water absorption pad 11; the spring 13 arranged at the bottom can be used for pulling the spring 13 to stretch and contract in the downward moving process of the water absorption pad 11, and the length of the liquid outlet column 9 and the elongation of the spring 13 form the moving range of the water absorption pad 11, so that the length of the liquid outlet column 9 can be shortened, and the cost of the liquid outlet column 9 is reduced; when the absorbent pad 11 returns, the elastic force of the spring 13 accelerates the contraction of the arc-shaped piece 12, thereby increasing the reaction speed of the arc-shaped piece 12.
As a specific embodiment of the present invention, the absorbent pad 11 is made of aluminum silicate cotton material, a set of transverse shallow grooves 14 is provided on the lower surface of the absorbent pad 11, and the shallow grooves 14 are used for allowing the air discharged from the air outlet 7 to pass through; the water absorption pad 11 made of the aluminum silicate cotton material has good water absorption performance and good heat resistance, so that the water absorption cotton has longer service life in a high-temperature environment, and the arranged shallow grooves 14 can be used for accommodating airflow to pass through, and the cooling effect is accelerated.
As a specific embodiment of the present invention, a set of heat absorbing sheets 15 is disposed in the cooling chamber 1 at a position close to the unidirectional air inlet pipe 4; the heat absorbing sheet 15 is made of an aluminum alloy material; through the heat absorbing sheet 15 that is equipped with in inside for the aluminum alloy can be fast with the cold air heat transfer of injection, reduces the temperature in the cavity, has effectively strengthened battery body 6's cooling effect.
As a specific embodiment of the present invention, the heat absorbing sheets 15 are arranged in a wave shape, the heat absorbing sheets 15 are distributed from top to bottom, and the number of the heat absorbing sheets 15 is at least three; by arranging the heat absorbing sheet 15 in a wave shape, the contact area with cold air can be increased, the heat exchange speed is increased, and the cooling effect of the battery body 6 is further enhanced.
As a specific embodiment of the present invention, the bottom of one end of each heat absorbing sheet 15 is fixedly connected with a counterweight 16; through the balancing weight 16 that is equipped with in heat absorbing sheet 15 below for the air current that gets into in the one-way intake pipe 4 strikes heat absorbing sheet 15, and heat absorbing sheet 15 tip can produce the shake heavier, thereby makes the gaseous mobility of inside further improve, has increased heat transfer effect, and inside gaseous cold and hot atomizing steam that meets when winter simultaneously, and the heat absorbing sheet 15 of shake can accelerate atomizing effect, further improves cooling efficiency.
The working principle is as follows: according to the invention, through the cooling chamber 1 arranged on the outer side, in the working process of the battery, the controller arranged on the double-shaft cylinder 2 can control the double-shaft cylinder 2 to start, two telescopic rods of the double-shaft cylinder 2 can synchronously extend towards two sides to drive the connected piston plate 3 to move, the piston plate 3 can compress the gas in the cavities on two sides in the moving process, so that the gas is sprayed out from the gas outlet 7, the sprayed gas faces the upper surface of the battery body 6, the flow velocity of the gas above the battery body 6 is accelerated, the cooling effect of the battery body 6 is accelerated, when the double-shaft cylinder 2 controls the piston plate 3 to return, negative pressure is formed in the cavity after the gas is discharged, so that the external gas and the gas in the automobile are sucked through the one-way gas inlet pipe 4, when the air conditioner is started to cool the automobile in summer, the temperature in the automobile is obviously lower than the outside, and the introduced cold air, on one hand, the battery can exchange heat with the battery body 6 to cool, and on the other hand, the battery can be prepared for next spraying; the air conditioner is started in the automobile to heat up in winter, the temperature in the automobile is obviously lower than the outside, cold air and hot air can alternately generate water mist when being led into the cavity, the gas with the water mist is sprayed above the battery body 6, and the cooling effect is further improved; the principle of the gas entering the cooling pipe 5 is the same as that of the cooling pipe 5, and details are not described herein, and since the bottom surface of the battery body 6 is in direct contact with the cavity, the cold air introduced into the cooling pipe 5 is in direct contact with the bottom of the battery body 6, so that the overall cooling efficiency is accelerated;
meanwhile, the water absorption pad 11 is arranged at the bottom of the liquid outlet column 9, the memory alloy is in a stretching state in an initial state, when the battery body 6 dissipates heat during working, the arc-shaped sheet 12 made of the memory alloy is restored to a stretching state from a compressed state under the action of the heat, so that the connected water absorption pad 11 is pushed to approach the battery body 6 until the battery body is just contacted with the battery body, the water absorption pad 11 can also drive the liquid outlet column 9 to move downwards until the liquid outlet groove 10 on the liquid outlet column 9 just communicates the inside of the cooling pool 8 with the space below, cooling water is smoothly led out, the water flowing out from the liquid outlet groove 10 can be completely absorbed and stored by the water absorption pad 11 at the moment, the phenomenon that the cooling water flows all the time to cause excessive water to fall on the battery body 6 is avoided, the utilization rate of the cooling water is improved, automatic liquid outlet is realized, and the attached water absorption pad 11 can uniformly coat the water, the cooling efficiency is further improved by matching with the accelerated sprayed air flow; when the working temperature of the battery is not reduced, the arc-shaped sheet 12 made of the memory alloy gradually returns to the compressed state, the water absorption pad 11 returns along with the arc-shaped sheet, and the liquid outlet groove 10 is not communicated with liquid outlet.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides an electric automobile multichannel group battery air-cooling structure, includes battery body (6) and cooling device, its characterized in that: the cooling device is used for cooling the battery body (6); the cooling device comprises a cooling chamber (1), a double-shaft cylinder (2), a piston plate (3), a one-way air inlet pipe (4), a cooling pipe (5) and a one-way air outlet valve; the cooling chamber (1) is arranged in a concave shape, and the battery body (6) is wrapped in the concave part of the cooling chamber (1); and the upper surface of the battery is lower than the upper surface of the cooling chamber (1); a cavity is arranged in the cooling chamber (1); the bottom surface of the battery body (6) is in direct contact with the cavity, and the double-shaft cylinder (2) is fixedly arranged on the bottom surface of the battery body (6); the end parts of the telescopic rods of the double-shaft cylinder (2) are respectively and fixedly provided with a piston plate (3); the piston plate (3) can slide left and right in the cavity under the pushing of the double-shaft cylinder (2); the bottom of the cooling chamber (1) is fixedly connected with two cooling pipes (5); one of the cooling pipes (5) is communicated with the outside air, and the other is communicated with the space in the automobile; two sides of the cooling chamber (1) are fixedly connected with a one-way air inlet pipe (4); the other end of the one-way air inlet pipe (4) is provided with two fork pipes, one end of each fork pipe is communicated with the outside, and the other end of each fork pipe is communicated with the space inside the automobile; the side walls of the two sides of the sunken part of the cooling chamber (1) are respectively provided with an air outlet (7); the air outlets (7) are internally provided with one-way air outlet valves, and air flow sprayed out of the air outlets (7) faces the upper surface of the battery body (6); the one-way air outlet valve is used for controlling the one-way ejection of the air in the cavity.
2. The air cooling structure of the multi-channel battery pack of the electric vehicle as claimed in claim 1, wherein: a cooling pool (8) is arranged above the upper surface of the battery body (6); cooling water is contained in the cooling tank (8), and a liquid injection port is arranged above the cooling tank (8); two sides of the cooling pool (8) are respectively fixedly connected to the side walls of two sides of the sunken part of the cooling chamber (1); a group of liquid outlets are arranged below the cooling pool (8), and liquid outlet columns (9) are arranged in the liquid outlets; and a liquid outlet groove (10) is formed in the outer surface of the liquid outlet column (9), and the liquid outlet groove (10) is used for discharging cooling water.
3. The air cooling structure of the multi-channel battery pack of the electric vehicle as claimed in claim 2, wherein: the number of the liquid outlets is at least three, and a water absorption pad (11) is arranged below the cooling chamber (1); the water absorption pad (11) is fixed with the bottom surface of the liquid outlet column (9), and an arc-shaped sheet (12) is connected between the water absorption pad (11) and the cooling chamber (1); the arc-shaped sheet (12) is made of a memory alloy material, and the arc-shaped sheet (12) gradually extends and straightens along with the rise of temperature, so that the water absorption pad (11) is pushed to gradually approach the upper surface of the battery body (6) until the water absorption pad is attached to the upper surface of the battery body; the liquid outlet groove (10) is positioned at the upper part of the liquid outlet column (9).
4. The air cooling structure of the multi-channel battery pack of the electric vehicle as claimed in claim 3, wherein: a straight groove is formed in the bottom of the liquid outlet column (9); a spring (13) is fixedly connected in the straight groove; one end of the spring (13) is fixedly connected to the top wall of the straight groove, and the other end of the spring is fixedly connected to the upper surface of the water absorption pad (11).
5. The air cooling structure of the multi-channel battery pack of the electric vehicle as claimed in claim 3, wherein: the water absorption pad (11) is made of aluminum silicate cotton, a group of transverse shallow grooves (14) are formed in the lower surface of the water absorption pad (11), and the shallow grooves (14) are used for allowing air discharged from the air outlet (7) to pass through.
6. The air cooling structure of the multi-channel battery pack of the electric vehicle as claimed in claim 1, wherein: a group of heat absorbing sheets (15) are arranged in the cooling chamber (1) at a position close to the one-way air inlet pipe (4); the heat absorbing sheet (15) is made of an aluminum alloy material.
7. The air cooling structure of the multi-channel battery pack of the electric vehicle as claimed in claim 6, wherein: the heat absorbing sheets (15) are arranged in a wave shape, the heat absorbing sheets (15) are distributed from top to bottom, and the number of the heat absorbing sheets (15) is at least three.
8. The air cooling structure of the multi-channel battery pack of the electric vehicle as claimed in claim 7, wherein: and the bottom of one end of each heat absorbing sheet (15) is fixedly connected with a balancing weight (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011183039.3A CN112290119A (en) | 2020-10-29 | 2020-10-29 | Air cooling structure of multi-channel battery pack of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011183039.3A CN112290119A (en) | 2020-10-29 | 2020-10-29 | Air cooling structure of multi-channel battery pack of electric automobile |
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| Publication Number | Publication Date |
|---|---|
| CN112290119A true CN112290119A (en) | 2021-01-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011183039.3A Withdrawn CN112290119A (en) | 2020-10-29 | 2020-10-29 | Air cooling structure of multi-channel battery pack of electric automobile |
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| Country | Link |
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| CN (1) | CN112290119A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113078406A (en) * | 2021-03-29 | 2021-07-06 | 马鞍山学院 | Battery locking box of new energy automobile and use method |
| CN113097596A (en) * | 2021-04-01 | 2021-07-09 | 中山职业技术学院 | Apply to novel cooling system of electric automobile's lithium cell |
| CN115156673A (en) * | 2022-05-10 | 2022-10-11 | 刘力铭 | Induction type thermal plasma welding torch |
-
2020
- 2020-10-29 CN CN202011183039.3A patent/CN112290119A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113078406A (en) * | 2021-03-29 | 2021-07-06 | 马鞍山学院 | Battery locking box of new energy automobile and use method |
| CN113097596A (en) * | 2021-04-01 | 2021-07-09 | 中山职业技术学院 | Apply to novel cooling system of electric automobile's lithium cell |
| CN113097596B (en) * | 2021-04-01 | 2021-10-01 | 中山职业技术学院 | Lithium battery cooling system for electric automobile |
| CN115156673A (en) * | 2022-05-10 | 2022-10-11 | 刘力铭 | Induction type thermal plasma welding torch |
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Application publication date: 20210129 |
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