CN113809427B - Heat radiation structure and battery pack assembly and vehicle with same - Google Patents
Heat radiation structure and battery pack assembly and vehicle with same Download PDFInfo
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- CN113809427B CN113809427B CN202010462914.5A CN202010462914A CN113809427B CN 113809427 B CN113809427 B CN 113809427B CN 202010462914 A CN202010462914 A CN 202010462914A CN 113809427 B CN113809427 B CN 113809427B
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- battery pack
- heat dissipation
- heat dissipating
- radiating
- heat
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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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- 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
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- 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
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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
- H01M10/6562—Gases with free flow by convection only
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a heat radiation structure, a battery pack assembly with the heat radiation structure and a vehicle, wherein the heat radiation structure comprises: at least one connecting piece; the radiating pipes are connected to the connecting pieces, the radiating pipes are spaced apart from each other along the length direction of the connecting pieces, and each radiating pipe is of a hollow structure with two open ends. According to the heat radiation structure, the plurality of heat radiation pipes are arranged at intervals along the length direction of the connecting sheet, and each heat radiation pipe is arranged to be of a hollow structure, so that the heat radiation efficiency of the heat radiation structure can be effectively increased, and the heat radiation effect is improved. Simultaneously, a plurality of radiating pipes form a whole effectively, so that the radiating structure is convenient to install and disassemble, and the radiating structure is simple in structure and low in cost.
Description
Technical Field
The invention relates to the technical field of heat dissipation, in particular to a heat dissipation structure, a battery pack assembly with the heat dissipation structure and a vehicle.
Background
In the related art, the battery pack generally dissipates heat through a liquid cooling system. However, the heat dissipation structure of the liquid cooling system is complex, and a part of energy of the liquid cooling system is consumed in the heat dissipation process of the battery pack, so that the cost is high. In addition, under some working conditions without a liquid cooling system, the battery pack generally dissipates heat through air flowing around the battery pack, but the heat dissipation efficiency of the heat dissipation mode is low, and the heat dissipation effect is poor.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a heat dissipation structure with high heat dissipation efficiency and good heat dissipation effect.
Another object of the present invention is to provide a battery pack assembly having the above heat dissipation structure.
It is still another object of the present invention to provide a vehicle having the above battery pack assembly.
According to an embodiment of the first aspect of the present invention, a heat dissipation structure includes: at least one connecting piece; the radiating pipes are connected to the connecting pieces, the radiating pipes are spaced apart from each other along the length direction of the connecting pieces, and each radiating pipe is of a hollow structure with two open ends.
According to the heat radiation structure provided by the embodiment of the invention, the plurality of heat radiation pipes are arranged at intervals along the length direction of the connecting sheet, and each heat radiation pipe is arranged into a hollow structure, so that the heat radiation efficiency of the heat radiation structure can be effectively increased, and the heat radiation effect is improved. Simultaneously, a plurality of radiating pipes form a whole effectively, so that the radiating structure is convenient to install and disassemble, and the radiating structure is simple in structure and low in cost.
According to some embodiments of the invention, each of the radiating pipes includes: the pipe body is of a hollow structure with two open ends, and the heat dissipation layer is coated on the outer peripheral surface of the pipe body.
According to some embodiments of the invention, the tube body is an elastic member, each of the radiating tubes is configured to deform when receiving a force toward the connection piece, and a contact area of the radiating tube after deformation with the connection piece is larger than a contact area of the radiating tube before deformation with the connection piece.
According to some embodiments of the invention, after the plurality of radiating pipes are deformed, a gap is formed between two adjacent radiating pipes.
According to some embodiments of the invention, the tube body comprises a silicone member.
According to some embodiments of the invention, the heat dissipation layer comprises a graphene layer or a metal nanolayer.
According to some embodiments of the invention, the length direction of the radiating pipe is perpendicular to the length direction of the connecting piece.
According to some embodiments of the invention, each of the radiating pipes has a cross-sectional shape of a circle, an ellipse, an oblong or a polygon.
According to some embodiments of the invention, the plurality of connecting pieces are arranged at intervals along the length direction of the radiating pipe.
According to some embodiments of the invention, the number of the connecting pieces is three, wherein two connecting pieces are respectively positioned at two ends of the radiating pipes, and the other connecting piece is positioned at the middle part of the radiating pipes in the length direction.
According to some embodiments of the invention, the material of the connecting piece comprises polycarbonate.
A battery pack assembly according to an embodiment of the second aspect of the present invention includes: a battery pack; the heat dissipation structure is a heat dissipation structure according to the embodiment of the first aspect of the present invention, and the heat dissipation structure is disposed on the outer surface of the battery pack.
According to some embodiments of the invention, the battery pack includes: the top of the box body is open; the cover body is arranged at the top of the box body, the cover body is a metal piece, and the heat dissipation structure is arranged on the upper surface of the cover body.
According to some embodiments of the invention, the upper surface of the heat dissipation structure is provided with a plurality of fixing plates, the fixing plates are arranged at intervals along the length direction of the connecting sheet of the heat dissipation structure, and the heat dissipation structure is detachably connected with the battery pack through the fixing plates.
According to an embodiment of the third aspect of the present invention, a vehicle includes: the vehicle body is internally provided with a metal bottom plate; the battery pack assembly is a battery pack assembly according to the second aspect of the present invention, the battery pack assembly is disposed in the vehicle body and below the metal bottom plate, and the heat dissipation structure of the battery pack assembly is compressed between the metal bottom plate and the battery pack.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a heat dissipating structure according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a connection piece and a radiating pipe of a radiating structure according to an embodiment of the present invention;
fig. 3 is a schematic view of a battery pack assembly according to an embodiment of the present invention;
fig. 4 is an exploded view of a battery pack assembly according to an embodiment of the present invention;
fig. 5 is a schematic view of a fixing plate of a battery pack assembly according to an embodiment of the present invention;
FIG. 6 is a schematic view of a metal floor and battery pack assembly of a vehicle according to an embodiment of the invention;
fig. 7 is an exploded view of a metal floor and battery pack assembly of a vehicle according to an embodiment of the present invention;
fig. 8 is an assembled schematic view of a metal floor and battery pack assembly of a vehicle according to an embodiment of the invention;
fig. 9 is an enlarged view of the portion a circled in fig. 8.
Reference numerals:
100: a heat dissipation structure;
11: a connecting sheet; 12: a heat radiating pipe; 121: a tube body; 122: a heat dissipation layer;
200: a battery pack assembly;
21: a battery pack; 211: a case; 212: a cover body; 22: a fixing plate; 221: a mounting hole;
31: a metal base plate.
Detailed Description
Embodiments of the present invention will be described in detail below, by way of example with reference to the accompanying drawings.
A heat dissipation structure 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 9. The heat dissipation structure 100 may be applied to a battery pack. In the following description of the present application, an example in which the heat dissipation structure 100 is applied to a battery pack will be described. Of course, those skilled in the art will appreciate that the heat dissipation structure 100 can be applied to other types of devices requiring heat dissipation, and is not limited to battery packs.
As shown in fig. 1 to 9, a heat dissipating structure 100 according to an embodiment of the first aspect of the present invention includes at least one connection piece 11 and a plurality of heat dissipating pipes 12. In the description of the present invention, "plurality" means two or more. Specifically, the plurality of radiating pipes 12 are connected to the connecting piece 11, and the specific connection mode is not limited, for example, the radiating pipes 12 may be bonded, and are spaced apart from each other along the length direction of the connecting piece 11, and each radiating pipe 12 has a hollow structure with two open ends.
For example, in the example of fig. 1 and 2, the plurality of radiating pipes 12 may be bundled on the connection piece 11 such that the plurality of radiating pipes 12 and the connection piece 11 are formed as one body to facilitate the installation and removal of the integral radiating structure 100. The plurality of radiating pipes 12 are arranged at intervals in the length direction of the connecting sheet 11, so that gaps are formed between two adjacent radiating pipes 12, the contact area between the radiating pipes 12 and air is greatly increased, and therefore the radiating effect of the radiating structure 100 is improved through air flowing in the gaps. Moreover, since each radiating pipe 12 has a hollow structure penetrating along its own length direction, when air flows through the inside of the radiating pipe 12, the contact area between the radiating pipe 12 and the air can be further increased, and the heat exchange between the radiating pipe 12 and the surrounding air is enhanced, so that the radiating efficiency of the radiating structure 100 is further improved, and the radiating effect is further improved.
When the heat dissipation structure 100 is applied to the battery pack 21, heat generated by the battery pack 21 is transferred to the plurality of heat dissipation tubes 12 of the heat dissipation structure 100, and heat on the heat dissipation tubes 12 flows through air in gaps between the heat dissipation tubes 12 and flows inside the heat dissipation tubes 12, so that heat exchange between the heat dissipation tubes 12 and ambient air is realized, and the temperature of the battery pack 21 is reduced and controlled.
Compared with the traditional cooling structure of the liquid cooling system, the cooling structure 100 formed by the connecting sheet 11 and the plurality of cooling pipes 12 has the advantages of simple structure, high cooling efficiency, no consumption of energy of the battery pack 21 in the cooling process, high energy utilization rate of the battery pack 21, energy conservation, environmental protection, low cost, independent disassembly and assembly of the cooling pipes 12, convenient maintenance and low maintenance cost, and additionally avoids the safety problem caused by leakage of cooling liquid in the liquid cooling system.
According to the heat dissipation structure 100 of the embodiment of the invention, the plurality of heat dissipation pipes 12 are arranged at intervals along the length direction of the connecting sheet 11, and each heat dissipation pipe 12 is arranged into a hollow structure with two open ends, so that the heat dissipation structure 100 has high heat dissipation efficiency and good heat dissipation effect. Meanwhile, as the plurality of radiating pipes 12 are connected to the connecting sheet 11, the plurality of radiating pipes 12 and the connecting sheet 11 are integrated, the whole installation and the disassembly of the radiating structure 100 are convenient, and the radiating structure 100 is simple in structure and low in cost.
According to some embodiments of the present invention, each radiating pipe 12 includes a pipe body 121 and a radiating layer 122, and the pipe body 121 is a hollow structure with both ends open. The heat dissipation layer 122 is coated on the outer circumferential surface of the tube body 121. Referring to fig. 2, the tube body 121 is a hollow tube penetrating through end surfaces of both ends of the tube body 121 in a longitudinal direction thereof, and the heat dissipation layer 122 may have a substantially circular cross-sectional shape, and the heat dissipation tube 12 may be connected to the connection piece 11 through the heat dissipation layer 122. When the battery pack 21 works, heat generated by the battery pack 21 can be transferred to the radiating pipe 12, the air flowing in the pipe body 121 can take away the heat transferred by the radiating layer 122, and meanwhile, the heat can be emitted to the surrounding air through the radiating layer 122, so that the temperature of the battery pack 21 is reduced, and the performance of the battery pack 21 is ensured.
Further, the tube body 121 is an elastic member, each radiating tube 12 is configured to deform when receiving a force toward the connection piece 11, and a contact area of the radiating tube 12 after deformation with the connection piece 11 is larger than a contact area of the radiating tube 12 before deformation with the connection piece 11. By providing the tube body 121 as an elastic member, the tube body 121 itself is ensured to have a certain elastic deformation amount. As shown in fig. 8 and 9, when the heat dissipation structure 100 is mounted on the metal bottom plate 31 of the vehicle, the metal bottom plate 31 presses the heat dissipation structure 100 downward, and since the tube body 121 has a certain elastic deformation, when the tube body 121 deforms, the integrity of the heat dissipation structure 100 can still be ensured, and meanwhile, the contact surfaces of the deformed heat dissipation tube 12, the battery pack 21 and the metal bottom plate 31 are converted from point contact to surface contact, so that the heat conduction area of the heat dissipation tube 12 is increased, and the heat generated by the battery pack 21 can be dissipated through the large heat conduction surface of the deformed heat dissipation tube 12 and the metal bottom plate 31, thereby improving the heat dissipation effect of the heat dissipation structure 100.
Further, referring to fig. 8 and 9, after each of the plurality of radiating pipes 12 is deformed, a gap is provided between two adjacent radiating pipes 12. For example, when the heat dissipation structure 100 is applied to the battery pack 21, the contact area of the heat dissipation pipe 12 with the battery pack 21 increases, thereby increasing the heat conduction area of the heat dissipation pipe 12. When the battery pack 21 radiates heat, the heat generated by the battery pack 21 is transferred to the radiating pipe 12, and the heat on the radiating pipe 12 flows through the air in the gap and the air flows in the radiating pipe 12, so that the heat exchange between the radiating pipe 12 and the surrounding air is realized, and the temperature of the battery pack 21 is reduced and controlled.
In some alternative embodiments, the tube body 121 comprises a piece of silicone. The silica gel piece has flexibility, can guarantee the deformation volume when pipe body 121 installs effectively, and the silica gel piece has electrical insulation and thermal conductivity simultaneously, can guarantee the radiating effect of heat radiation structure 100 effectively.
In some alternative embodiments, the heat sink layer 122 includes a graphene layer or a metal nanolayer. For example, a graphene layer or a metal nano layer may be coated on the outer circumferential surface of the radiating pipe 12. The graphene has ultrahigh thermal conductivity and heat dissipation performance, so that the heat dissipation efficiency of the heat dissipation structure 100 can be effectively increased, and the heat dissipation effect is improved. Similarly, the metal nano-layer also has ultra-high thermal conductivity, and can also improve the heat dissipation effect and heat dissipation efficiency of the heat dissipation structure 100.
According to some embodiments of the present invention, as shown in fig. 1 and 2, the length direction of each radiating pipe 12 is perpendicular to the length direction of the connection piece 11. Thus, the heat dissipation structure 100 is simplified in layout, and the heat dissipation pipe 12 is easily installed. Of course, the length direction of each radiating pipe 12 may also be disposed obliquely with respect to the length direction of the connection piece 11 (not shown).
Alternatively, each radiating pipe 12 has a cross-sectional shape of a circle, an ellipse, an oblong, a polygon, or the like. For example, in the example of fig. 2, the cross-sectional shape of each radiating pipe 12 is circular, so that the radiating pipe 12 has a simple structure and is easy to process. Of course, the cross-sectional shape of each radiating pipe 12 may be an oblong or rectangular shape, and the side surface of the oblong or rectangular radiating pipe 12 in the thickness direction may be connected to the connecting piece 11, so that the contact area between the radiating pipe 12 and the connecting piece 11 may be increased, thereby increasing the heat conduction area of the radiating pipe 12 and improving the heat dissipation effect of the heat dissipation structure 100. Here, it should be noted that the oblong shape is a racetrack, and specifically, the oblong shape includes two straight line segments and two arc segments, the two straight line segments are parallel to each other, and two ends of the two straight line segments are connected through the two arc segments respectively.
According to some embodiments of the present invention, as shown in fig. 1, the plurality of connection pieces 11 are provided, and the plurality of connection pieces 11 are spaced apart along the length direction of the radiating pipe 12. Therefore, the whole heat dissipation structure 100 has good stability and firmness, and the heat dissipation effect of the plurality of heat dissipation pipes 12 is effectively ensured. The plurality of connection pieces 11 are located on the same side of all the radiating pipes 12.
In some alternative embodiments, referring to fig. 1, the number of the connection pieces 11 is three, wherein two connection pieces 11 are respectively located at two ends of the plurality of radiating pipes 12, and the other connection piece 11 is located at the middle of the plurality of radiating pipes 12 in the length direction. Thereby, the connection reliability of the plurality of radiating pipes 12 is ensured.
In some alternative embodiments, the material of the connecting piece 11 comprises polycarbonate. The PC piece has good heat resistance and flame retardance, is low in cost, and meanwhile, the PC piece is low in forming shrinkage rate, so that the dimensional stability of the connecting piece 11 can be effectively ensured.
As shown in fig. 3 and 4, the battery pack assembly 200 according to the second aspect of the present invention includes a battery pack 21 and a heat dissipation structure 100. The heat dissipation structure 100 is the heat dissipation structure 100 according to the above-described first embodiment of the present invention, and the heat dissipation structure 100 is provided on the outer surface of the battery pack 21.
According to the battery pack assembly 200 of the embodiment of the present invention, by adopting the heat dissipation structure 100 of the embodiment of the first aspect of the present invention and installing the heat dissipation structure 100 on the outer surface of the battery pack 21, compared with the heat dissipation structure of the conventional liquid cooling system, the heat dissipation effect of the battery pack assembly 200 can be effectively improved, meanwhile, the energy of the battery pack 21 itself is not consumed in the heat dissipation process, the energy utilization rate of the battery pack 21 is increased, and the battery pack assembly is energy-saving and environment-friendly. In addition, compared with the heat dissipation mode of the battery pack in the related art applied to the working condition without the liquid cooling system, when the battery pack 21 adopting the heat dissipation structure 100 dissipates heat, air can flow in the gaps between the heat dissipation pipes 12 and also can flow in the heat dissipation pipes 12, so that the contact area between the heat dissipation pipes 12 and the air is enlarged, and the heat dissipation effect of the heat dissipation structure 100 can be improved.
According to some embodiments of the present invention, the battery pack 21 includes a case 211 and a cover 212, the top of the case 211 is opened, the cover 212 is disposed on the top of the case 211, the cover 212 is a metal member, and the heat dissipation structure 100 is disposed on the upper surface of the cover 212. For example, referring to fig. 3 and 4, the case 211 has a substantially rectangular shape with an open top, so that the case 211 has a simple structure and is easy to process. The cover 212 is mounted on top of the case 211, and the connection piece 11 of the heat dissipation structure 100 may be in contact with the upper surface of the cover 212. When the battery pack 21 works, heat generated by the battery pack 21 is transferred to the plurality of radiating pipes 12 of the radiating structure 100 through the cover 212, the plurality of radiating pipes 12 radiate heat to the battery pack 21 through air flowing, the temperature of the battery pack 21 is reduced and controlled, the performance of the battery pack 21 is improved, and the service life of the battery pack 21 is prolonged.
Further, a plurality of fixing plates 22 are disposed on the upper surface of the heat dissipation structure 100, the plurality of fixing plates 22 are disposed at intervals along the length direction of the connecting piece 11 of the heat dissipation structure 100, and the heat dissipation structure 100 is detachably connected to the battery pack 21 through the plurality of fixing plates 22. Referring to fig. 3 and 4 in combination with fig. 5, three fixing plates 22 are disposed on the upper surface of the heat dissipation structure 100, and the three fixing plates 22 are disposed at intervals along the length direction of the connection pieces 11 of the heat dissipation structure 100, wherein two fixing plates 22 are respectively located at two ends of the three connection pieces 11, and the other fixing plate 22 is located at the middle of the length direction of the three connection pieces 11. The fixing plate 22 is provided at both ends in the length direction thereof with mounting holes 221, respectively, and screw fasteners such as bolts are coupled to the case 211 of the battery pack 21 through the mounting holes 221 to mount the heat dissipation structure 100 on the upper surface of the battery pack 21, so that the assembly and the disassembly are convenient, and the replacement of the heat dissipation structure 100 is facilitated.
A vehicle according to an embodiment of the third aspect of the present invention includes a vehicle body (not shown) and a battery pack assembly 200. The battery pack assembly 200 is the battery pack assembly 200 according to the above-described second aspect of the present invention. The vehicle may be an electric vehicle or a hybrid vehicle.
Specifically, a metal bottom plate 31 is disposed in the vehicle body, and the battery pack assembly 200 is disposed in the vehicle body below the metal bottom plate 31, and the heat dissipation structure 100 of the battery pack assembly 200 is compressed between the metal bottom plate 31 and the battery pack 21.
According to the vehicle of the embodiment of the invention, when the heat radiation structure 100 is pressed between the metal bottom plate 31 and the battery pack 21, the heat radiation pipe 12 can be effectively ensured to be in contact with both the metal bottom plate 31 and the battery pack 21, so that the heat of the battery pack 21 can be transmitted to the metal bottom plate 31 through the heat radiation pipe 12 for heat radiation, and the purpose of reducing the temperature of the battery pack 21 in the use process is achieved.
Further, when the radiating pipe 12 may be deformed, the metal bottom plate 31 may press the radiating pipe 12 and the battery pack 21 downward together in the process of mounting the radiating pipe 12 to the frame of a vehicle such as an electric vehicle or a hybrid vehicle, so that the contact between the radiating pipe 12 and the upper surface of the battery pack 21 is converted from point contact to surface contact, and the contact between the radiating pipe 12 and the lower surface of the metal bottom plate 31 is converted from point contact to surface contact, thereby increasing the heat conduction area of the radiating pipe 12 and thus increasing the heat dissipation efficiency of the battery pack assembly 200.
Other components and operations of a vehicle according to embodiments of the invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present invention, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (14)
1. A heat dissipation structure, comprising:
at least one connecting piece;
the radiating pipes are connected to the connecting pieces and are spaced from each other along the length direction of the connecting pieces, and each radiating pipe is of a hollow structure with two open ends;
after the radiating pipes are deformed, gaps are formed between any two adjacent radiating pipes, so that air flows in the radiating pipes and the gaps to realize heat exchange between the radiating pipes and the air, and the radiating structure is arranged on the outer surface of the battery pack.
2. The heat radiation structure according to claim 1, wherein each of the heat radiation pipes comprises a pipe body having a hollow structure with both ends open, and a heat radiation layer coated on an outer peripheral surface of the pipe body.
3. The heat dissipating structure of claim 2, wherein the tube body is an elastic member, each of the heat dissipating tubes is configured to deform when subjected to a force toward the connection piece, and a contact area of the heat dissipating tube after deformation with the connection piece is larger than a contact area of the heat dissipating tube before deformation with the connection piece.
4. A heat dissipating structure according to claim 3, wherein said tube body comprises a silicone member.
5. The heat dissipating structure of claim 2, wherein the heat dissipating layer comprises a graphene layer or a metal nanolayer.
6. The heat dissipating structure of claim 1, wherein a length direction of each of said heat dissipating tubes is perpendicular to a length direction of said connecting piece.
7. The heat dissipating structure of any one of claims 1 to 6, wherein each of said heat dissipating tubes has a cross-sectional shape of a circle, an ellipse, an oblong or a polygon.
8. The heat dissipating structure of any one of claims 1 to 6, wherein a plurality of said connection pieces are provided, and a plurality of said connection pieces are provided at intervals along a length direction of said heat dissipating pipe.
9. The heat dissipating structure of claim 8, wherein said three connecting pieces are provided, two of said connecting pieces being located at both ends of said plurality of heat dissipating pipes, respectively, and the other connecting piece being located at a middle portion of a length direction of said plurality of heat dissipating pipes.
10. The heat dissipating structure of any of claims 1-6, wherein the material of the connecting piece comprises polycarbonate.
11. A battery pack assembly, comprising:
a battery pack;
a heat dissipation structure, which is a heat dissipation structure according to any one of claims 1 to 10, provided on an outer surface of the battery pack.
12. The battery pack assembly of claim 11, wherein the battery pack comprises:
the top of the box body is open;
the cover body is arranged at the top of the box body, the cover body is a metal piece, and the heat dissipation structure is arranged on the upper surface of the cover body.
13. The battery pack assembly of claim 12, wherein a plurality of fixing plates are provided on an upper surface of the heat dissipation structure, the plurality of fixing plates are disposed at intervals along a length direction of the connection piece of the heat dissipation structure, and the heat dissipation structure is detachably connected to the battery pack through the plurality of fixing plates.
14. A vehicle, characterized by comprising:
the vehicle body is internally provided with a metal bottom plate;
a battery pack assembly according to any one of claims 11-13, the battery pack assembly being disposed within the vehicle body below the metal base plate, the heat dissipating structure of the battery pack assembly being compressed between the metal base plate and the battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010462914.5A CN113809427B (en) | 2020-05-27 | 2020-05-27 | Heat radiation structure and battery pack assembly and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010462914.5A CN113809427B (en) | 2020-05-27 | 2020-05-27 | Heat radiation structure and battery pack assembly and vehicle with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113809427A CN113809427A (en) | 2021-12-17 |
| CN113809427B true CN113809427B (en) | 2023-07-11 |
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Family Applications (1)
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| CN202010462914.5A Active CN113809427B (en) | 2020-05-27 | 2020-05-27 | Heat radiation structure and battery pack assembly and vehicle with same |
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| JP2012129058A (en) * | 2010-12-15 | 2012-07-05 | Mitsubishi Motors Corp | Vehicular battery cooling structure |
| CN109216827A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | Radiator, battery modules component, battery pack and vehicle |
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