CN115172937A - Battery heat abstractor and transportation vehicles - Google Patents

Battery heat abstractor and transportation vehicles Download PDF

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Publication number
CN115172937A
CN115172937A CN202210950630.XA CN202210950630A CN115172937A CN 115172937 A CN115172937 A CN 115172937A CN 202210950630 A CN202210950630 A CN 202210950630A CN 115172937 A CN115172937 A CN 115172937A
Authority
CN
China
Prior art keywords
mesh enclosure
hollow mesh
evaporation
heat dissipation
battery
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.)
Pending
Application number
CN202210950630.XA
Other languages
Chinese (zh)
Inventor
周敏
刘春来
柳征
张桐源
徐红星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Hefei New Transportation Industry Investment Co ltd
Original Assignee
China Railway Hefei New Transportation Industry Investment Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Railway Hefei New Transportation Industry Investment Co ltd filed Critical China Railway Hefei New Transportation Industry Investment Co ltd
Priority to CN202210950630.XA priority Critical patent/CN115172937A/en
Publication of CN115172937A publication Critical patent/CN115172937A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • H01M10/65—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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)

Abstract

The invention provides a battery heat dissipation device which is used for dissipating heat of a lithium battery and comprises a heat exchange plate abutted against the lithium battery, an evaporation pool used for bearing evaporation liquid and a mask assembly arranged above the evaporation pool, wherein the heat exchange plate is arranged at the bottom of the evaporation pool, the evaporation pool is provided with an upward opening, the mask assembly comprises a hollow mesh enclosure used for covering the opening, a thin film used for covering the hollow mesh enclosure and a connecting rod connected between the thin film and the hollow mesh enclosure, the hollow mesh enclosure is provided with a through hole for air to enter and exit, and the thin film has a first state covering the hollow mesh enclosure and a second state jacked up by vapor of the evaporation liquid so as to expose the hollow mesh enclosure. According to the traffic vehicle and the heat dissipation device, the shielding cover assembly is arranged, so that the heat dissipation of the lithium battery is realized under the condition that external energy is not required to be provided, and the heat dissipation effect is good.

Description

Battery heat abstractor and transportation vehicles
Technical Field
The invention relates to a battery heat dissipation device and a traffic vehicle.
Background
The lithium battery has become one of the main choices of the power battery of the traffic vehicle due to the excellent performances of long service life, high specific energy, high-rate charge and discharge, safety, no pollution and the like. However, the lithium ion battery is accompanied by various heat absorption or generation in the charging and discharging cycle process, and the internal temperature of the lithium ion battery is changed, which causes great harm to the service life and safety of the lithium ion battery. Therefore, the heat dissipation of the lithium battery is very important. Most of the existing heat dissipation devices are forced air cooling with poor effect and liquid cooling requiring external energy supply.
In view of the above, there is a need for an improved battery heat dissipation device to solve the above problems.
Disclosure of Invention
The invention aims to provide a battery heat dissipation device to solve the problems that the existing lithium battery is poor in heat dissipation effect or needs external energy supply.
In order to achieve the above object, the present invention provides a battery heat dissipation device for dissipating heat from a lithium battery, the battery heat dissipation device includes a heat exchange plate abutting against the lithium battery, an evaporation tank for carrying an evaporation liquid, and a mask assembly disposed above the evaporation tank, the heat exchange plate is disposed at the bottom of the evaporation tank, the evaporation tank has an upward opening, the mask assembly includes a hollow mesh enclosure for covering the opening, a thin film for covering the hollow mesh enclosure, and a connecting rod connected between the thin film and the hollow mesh enclosure, the hollow mesh enclosure is provided with a through hole for air to enter and exit, and the thin film has a first state covering the hollow mesh enclosure and a second state lifted by vapor of the evaporation liquid to expose the hollow mesh enclosure.
As a further improvement of the present invention, the mask assembly includes a hinge for connecting the hollow mesh enclosure and the connecting rod.
As a further improvement of the invention, the connecting rod and the hinge are arranged on two sides of the hollow mesh enclosure.
As a further improvement of the invention, the number of the connecting rods and the hinges on one side is three.
As a further improvement of the invention, the battery heat dissipation device also comprises a main body structure used for enclosing the side wall forming the evaporation pool.
As a further improvement of the invention, the main body structure is provided with a heat dissipation air duct communicated with the evaporation pool.
As a further improvement of the invention, an exhaust fan is arranged in the heat dissipation air duct.
As a further improvement of the invention, the heat dissipation air duct is provided with an air inlet arranged at one end, an air outlet arranged at the other end and a communication port arranged between the air inlet and the air outlet, the communication port is communicated with the evaporation tank, and the air inlet and the air outlet are positioned on the main body structure at the same side.
As a further improvement of the invention, the main structure is provided with protruding parts which are outwards protruded and arranged at two sides of the air outlet so that the air outlet is protruded and arranged outside the air inlet along the horizontal direction.
The invention also provides a transportation vehicle which comprises a lithium battery and the battery heat dissipation device.
The beneficial effects of the invention are: according to the traffic vehicle and the heat dissipation device, the shielding cover assembly is arranged, so that the heat dissipation of the lithium battery is realized under the condition that external energy is not required to be provided, and the heat dissipation effect is good.
Drawings
Fig. 1 is a schematic structural diagram of a battery heat dissipation device according to the present invention;
FIG. 2 isbase:Sub>A schematic cross-sectional view A-A of FIG. 1;
fig. 3 is a schematic structural view of a shield assembly of the battery heat sink of the present invention between a first state and a second state;
fig. 4 is a structural schematic view of a shield assembly of the battery heat sink device in a second state according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 4, the transportation vehicle according to the present invention includes a lithium battery 200 and a battery heat sink 100, wherein the heat sink 100 is used for dissipating heat from the lithium battery 200.
The battery heat dissipation apparatus 100 includes a heat exchange plate 1 abutting against the lithium battery 200, an evaporation pool 2 for carrying an evaporation liquid 21, a main structure 3 for enclosing a sidewall forming the evaporation pool 2, and a mask assembly 4 disposed above the evaporation pool 2.
The heat exchange plate 1 is made of a material with excellent heat conductivity, and when the lithium battery 200 works, heat is generated and is transferred through the heat exchange plate 1.
The heat exchange plate 1 is arranged at the bottom of the evaporation tank 2, the main body structure 3 is surrounded with a side wall forming the evaporation tank 2, an upward opening is formed in the top of the evaporation tank 2, the evaporated liquid 21 is contained in the evaporation tank 2, when the temperature of the heat exchange plate 1 rises, the evaporated liquid 21 is transferred to the evaporated liquid 21 in a thermal contact mode, and the evaporated liquid 21 absorbs heat and evaporates to take away a part of heat.
The mask assembly 4 includes a hollow mesh enclosure 41 for covering the opening, a film 42 for covering the hollow mesh enclosure 41, a connecting rod 43 connected between the film 42 and the hollow mesh enclosure 41, and a hinge 44.
The hollow mesh enclosure 41 is provided with a through hole for air to enter and exit, and the hollow mesh enclosure 41 mainly plays a role in supporting the thin film 42.
The film 42 has a first state covering the hollow mesh enclosure 41 and a second state being lifted by the vapor of the evaporation liquid 21 to expose the hollow mesh enclosure 41.
When the thin film 42 is in the first state, the thin film can cover the hollow mesh enclosure 41, and further cover the opening at the top of the evaporation tank 2, so as to prevent evaporation of the evaporation liquid 21 or dust and impurities from falling into the evaporation tank 2, and at this time, the lithium battery 200 does not work, or the temperature is low and heat dissipation is not needed.
When the film 42 is in the second state, the film is spaced from the hollow mesh enclosure 41 by a distance, so that the evaporation gas of the evaporation liquid 21 can be emitted from the gap between the hollow mesh enclosure 41 and the film 42, thereby taking away heat and realizing the heat dissipation effect. At this time, the lithium battery 200 is in a high-temperature working environment, automatically transfers heat to the heat exchange plate 1, and further transfers heat to the evaporation liquid 21, and the vapor pressure in the evaporation tank 2 is increased by the evaporation gas of the evaporation liquid 21, so as to realize a second state of jacking up the thin film 42.
The hinge 44 is used to connect the hollow mesh enclosure 41 and the connecting rod 43, and the connecting rod 43 is used to support the hollow mesh enclosure 41.
The connecting rod 43 and the hinge 44 are disposed on two sides of the hollow mesh enclosure 41. The number of the links 43 and the hinges 44 on one side is three.
When the membrane 42 is in the first state, the links 43 are arranged horizontally, and when the membrane 42 is in the second state, the links 43 are arranged vertically. It should be noted that the horizontal direction is not completely parallel to the ground or the thin film, and an included angle of plus or minus 5 degrees is considered as a horizontal state, and correspondingly, the vertical direction is not completely perpendicular to the ground or the thin film, and an included angle of plus or minus 5 degrees is considered as a vertical state.
The main structure 3 is provided with a heat dissipation air duct 31 communicated with the evaporation tank 2, and an exhaust fan 314 is arranged in the heat dissipation air duct 31.
The heat dissipation air duct 31 has an air inlet 311 disposed at one end, an air outlet 312 disposed at the other end, and a communication port 313 disposed between the air inlet 311 and the air outlet 312, the communication port 313 is communicated with the evaporation tank 2, and the air inlet 311 and the air outlet 312 are located on the same side of the main body structure 3. The exhaust fan 314 is disposed at the communication port 313 to exhaust the evaporated liquid 21 gas in the evaporation tank 2.
The main structure 3 is provided with protruding portions protruding outwards at two sides of the air outlet 312 so that the air outlet 312 protrudes outside the air inlet 311 along the horizontal direction. In this embodiment, the protruding portion is obliquely disposed from the air outlet 312 toward two sides.
The heat dissipation air duct 31 is disposed on both sides of the main body structure 3.
When the vehicle is running, fast wind blows through the air inlets 311 and the air outlets 312 on the two sides of the heat dissipation device 100 of the vehicle-mounted lithium battery 200, and according to the bernoulli principle, when the wind passes through, the wind speed is low and the pressure is high when the wind passes through a flat wind opening, namely the air inlets 311, in the same time; when the air passes through the convex air outlet, namely the air outlet 312, the air speed is high, the pressure is low, and then a pressure difference occurs in the heat dissipation air duct 31, so that the air smoothly enters the heat dissipation air duct 31 to form an air flow, and the fan 314 in the heat dissipation air duct 31 is driven to rotate. Meanwhile, the evaporation liquid 21 in the evaporation pool 2 starts evaporation and gasification after the temperature of the lithium battery 200 at the bottom is raised, and the steam is substituted into the heat dissipation air duct 31 through the rotation of the exhaust fan 314 and is discharged along with the air flowing in the heat dissipation air duct 31, so that the further heat dissipation of the lithium battery 200 is realized.
According to the transportation vehicle and heat dissipation device 100, the shielding cover assembly 4 is arranged, so that the heat dissipation of the lithium battery 200 is realized under the condition that external energy is not required to be provided, and the heat dissipation effect is good; through setting up heat dissipation wind channel 31, utilize heat dissipation wind channel 31 and exhaust fan 314 to realize the air flow heat dissipation under the effect of wind, greatly promoted lithium cell 200's radiating efficiency, further strengthened the radiating effect.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
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 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 utility model provides a battery heat abstractor for the lithium cell heat dissipation, its characterized in that: the battery heat dissipation device comprises a heat exchange plate abutted against the lithium battery, an evaporation pool used for bearing evaporation liquid, and a mask assembly arranged above the evaporation pool, wherein the heat exchange plate is arranged at the bottom of the evaporation pool, the evaporation pool is provided with an upward opening, the mask assembly comprises a hollow mesh enclosure used for covering the opening, a thin film used for covering the hollow mesh enclosure, and a connecting rod connected between the thin film and the hollow mesh enclosure, the hollow mesh enclosure is provided with a through hole for air to enter and exit, and the thin film is covered at a first state of the hollow mesh enclosure and is jacked up by vapor of the evaporation liquid so that the hollow mesh enclosure is exposed at a second state.
2. The battery heat sink of claim 1, wherein: the shade assembly comprises a hinge, and the hinge is used for connecting the hollow mesh enclosure and the connecting rod.
3. The battery heat sink of claim 2, wherein: the connecting rod and the hinge are arranged on two sides of the hollow mesh enclosure.
4. The battery heat sink of claim 3, wherein: the number of the connecting rods and the hinges on one side is three.
5. The battery heat sink of claim 1, wherein: the battery heat sink further comprises a main body structure for enclosing the side wall forming the evaporation pool.
6. The battery heat sink of claim 5, wherein: and the main structure is provided with a heat dissipation air duct communicated with the evaporation tank.
7. The battery heat sink of claim 6, wherein: an exhaust fan is arranged in the heat dissipation air duct.
8. The battery heat sink of claim 7, wherein: the heat dissipation air duct is provided with an air inlet arranged at one end, an air outlet arranged at the other end and a communication port arranged between the air inlet and the air outlet, the communication port is communicated with the evaporation pool, and the air inlet and the air outlet are positioned on the same side of the main body structure.
9. The battery heat sink of claim 8, wherein: the main structure is provided with protruding parts protruding outwards on two sides of the air outlet so that the air outlet protrudes outwards along the horizontal direction of the outer side of the air inlet.
10. A transportation vehicle characterized by: the transportation vehicle comprising a lithium battery, the battery heat sink of any one of claims 1-9.
CN202210950630.XA 2022-08-09 2022-08-09 Battery heat abstractor and transportation vehicles Pending CN115172937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210950630.XA CN115172937A (en) 2022-08-09 2022-08-09 Battery heat abstractor and transportation vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210950630.XA CN115172937A (en) 2022-08-09 2022-08-09 Battery heat abstractor and transportation vehicles

Publications (1)

Publication Number Publication Date
CN115172937A true CN115172937A (en) 2022-10-11

Family

ID=83479799

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210950630.XA Pending CN115172937A (en) 2022-08-09 2022-08-09 Battery heat abstractor and transportation vehicles

Country Status (1)

Country Link
CN (1) CN115172937A (en)

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