WO2018092999A1 - Échangeur de chaleur de batterie et bloc-batterie comportant celui-ci - Google Patents

Échangeur de chaleur de batterie et bloc-batterie comportant celui-ci Download PDF

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Publication number
WO2018092999A1
WO2018092999A1 PCT/KR2017/005475 KR2017005475W WO2018092999A1 WO 2018092999 A1 WO2018092999 A1 WO 2018092999A1 KR 2017005475 W KR2017005475 W KR 2017005475W WO 2018092999 A1 WO2018092999 A1 WO 2018092999A1
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WO
WIPO (PCT)
Prior art keywords
refrigerant
horizontal
heat exchanger
tube
battery
Prior art date
Application number
PCT/KR2017/005475
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English (en)
Korean (ko)
Inventor
김봉준
이요한
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to CN201780070802.1A priority Critical patent/CN109952682A/zh
Publication of WO2018092999A1 publication Critical patent/WO2018092999A1/fr

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • 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

Definitions

  • the present invention relates to a battery heat exchanger and a battery pack having the same, and more particularly, to a battery heat exchanger having a horizontal header disposed horizontally and a battery pack having the same.
  • the vehicle may be provided with a battery for supplying electricity to the electric motor, a motor controller for controlling the electric motor, and the like.
  • the battery installed in the vehicle may be charged from a renewable power source or a charger, and may supply electric power to the electric motor when the vehicle is driven.
  • the performance of a battery can be largely determined by its temperature, and the temperature rises during charging and discharging.
  • electrolyte decomposition may occur, degrading battery performance and gradually decreasing its lifespan.
  • the battery may include a plurality of battery modules, and the plurality of battery modules may be managed to minimize the temperature difference between each other.
  • the vehicle may be provided with a battery cooling device for cooling the battery module to prevent the battery module from overheating to maintain the performance of the battery module.
  • the battery cooler may be classified into an air-cooled battery cooler, a water-cooled battery cooler, and a refrigerant battery cooler according to a cooling method.
  • the refrigerant type battery cooling device includes a compressor for compressing a refrigerant, a condenser for condensing the refrigerant compressed in the compressor, an expansion valve for expanding the refrigerant condensed in the condenser, and a refrigerant expanded by the expansion valve to be in contact with the battery module. It may include a battery module heat exchanger.
  • the refrigerant compressed in the compressor may be sequentially passed through the condenser, the expansion valve, and the battery heat exchanger, and then sucked into the compressor, and the refrigerant may absorb heat of the battery module while passing through the battery heat exchanger.
  • the battery heat exchanger for cooling the battery module is not complicated in structure, and it is preferable to distribute the refrigerant evenly when the vehicle and the battery heat exchanger are inclined.
  • An object of the present invention is to provide a battery heat exchanger and a vehicle battery pack having the same, in which the refrigerant in the header can be evenly distributed to the plurality of refrigerant tubes even when the vehicle is inclined.
  • the battery heat exchanger includes a pair of horizontal headers having a plurality of refrigerant tube insertion holes formed therein; A plurality of refrigerant tubes connected to the pair of horizontal headers and having an inner tube portion inserted into the refrigerant passage through the refrigerant tube insertion hole, and an outer tube portion positioned between the pair of horizontal headers; And a bonding material for joining the outer surface of the inner tube portion to the inner surface of the horizontal header, wherein the plurality of refrigerant tube insertion holes are spaced apart in the longitudinal direction of the horizontal header, and at least a portion of the bonding material is disposed between the lower end of the inner tube portion and the inner bottom of the horizontal header.
  • a gap to be located is formed, and the height of the gap is 0.1 to 0.4 times the height between the centerline of the horizontal header and the inner bottom of the horizontal header.
  • a battery pack having a battery heat exchanger includes at least one battery module; A battery heat exchanger on which the battery module is mounted, the battery heat exchanger comprising: a cooling plate; A plurality of coolant tubes disposed on the bottom of the cooling plate, and a pair of horizontal headers arranged horizontally next to the cooling plate and having a coolant flow path formed therein and spaced in the longitudinal direction of the cooling plate, and a pair of horizontal headers
  • Each of the plurality of refrigerant tube insertion holes is spaced apart in the longitudinal direction of the horizontal header
  • the plurality of refrigerant tubes include an inner tube portion inserted into the refrigerant flow path through the refrigerant tube insertion hole, and the outer tube portion located between the pair of horizontal headers
  • the outer surface of the inner tube portion and the inner surface of the horizontal header are joined by a joining material, and a gap is formed between the lower end of the inner tube portion and the inner bottom of the horizontal header, and a gap in which at least a portion of the joining material is located is
  • the refrigerant tube insertion hole may be eccentrically downward based on the center line.
  • All of the refrigerant tube insertion holes may be located below the center line.
  • the height of the gap may be 0.9 mm to 1.1 mm.
  • the hydraulic diameter of the horizontal header may be 0.25 to 0.5 times the rated flow rate of the battery heat exchanger.
  • the cross-sectional shape of the refrigerant passage may be rectangular.
  • the cross-sectional shape of the refrigerant passage may be semicircular.
  • connection tube through which the refrigerant flows may be connected to the longitudinal center of the horizontal header.
  • the connecting tube can be connected higher than the refrigerant tube.
  • the bonding material when the horizontal header and the refrigerant tube are joined, the bonding material may be minimized from entering the refrigerant tube, and the refrigerant tube may be blocked by the bonding material.
  • FIG. 1 is a perspective view showing a battery heat exchanger and a battery pack according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view showing the inside of a battery pack according to an embodiment of the present invention
  • FIG. 3 is an enlarged cross-sectional view when the refrigerant tube shown in FIG. 2 is before brazing bonding with a horizontal header,
  • FIG. 4 is an enlarged cross-sectional view when the refrigerant tube shown in FIG. 3 is brazed to a horizontal header;
  • FIG. 5 is a side view showing a header of a battery heat exchanger according to an embodiment of the present invention.
  • FIG. 6 is a side view when the horizontal header shown in FIG. 5 is inclined
  • FIG. 8 is a view showing the flow rate of the refrigerant tube along the gap between the lower end of the refrigerant tube and the inner lower surface of the horizontal header of the embodiment of the present invention
  • FIG. 9 is a cross-sectional view showing various examples of a horizontal header according to an embodiment of the present invention.
  • FIG. 10 is a view showing the flow rate of the refrigerant according to the hydraulic diameter of the horizontal header according to an embodiment of the present invention
  • FIG. 11 is a view showing a flow pattern of the refrigerant according to the hydraulic diameter of the horizontal header according to an embodiment of the present invention.
  • FIG. 1 is a perspective view showing a battery heat exchanger and a battery pack according to an embodiment of the present invention
  • Figure 2 is a cross-sectional view showing the inside of the battery pack according to an embodiment of the present invention.
  • the battery heat exchanger 5 may be disposed in contact with the battery module 4 to absorb heat of the battery module 4.
  • the battery heat exchanger 5 may configure the battery pack P together with the battery module 4.
  • the battery pack P may further include a carrier 1 mounted on the vehicle, and the battery heat exchanger 5 may be mounted on the carrier 1.
  • the battery pack P may further include a top cover 2 covering an upper surface of the carrier 1.
  • the carrier 1 and the top cover 2 may form an appearance of the battery pack P, and a space for accommodating the battery heat exchanger 5 and the battery module 4 may be formed therebetween.
  • the battery heat exchanger 5 may be connected to the refrigeration cycle apparatus provided in the vehicle by a refrigerant pipe, and the refrigerant of the refrigeration cycle apparatus may enter the battery heat exchanger 5 and pass through the battery heat exchanger 5.
  • the refrigerant may absorb heat transferred from the battery module 4 to the battery heat exchanger 5 while passing through the battery heat exchanger 5.
  • the refrigeration cycle apparatus to which the battery heat exchanger 5 is connected may include a compressor, a condenser, an expansion mechanism, and an evaporator.
  • the battery heat exchanger 5 and the evaporator may be connected in parallel or in series.
  • the two-phase refrigerant expanded by the expansion mechanism may flow into the battery heat exchanger 5 to cool the battery heat exchanger 5.
  • the refrigeration cycle apparatus to which the battery heat exchanger 5 is connected may include a compressor, a condenser, and an expansion mechanism, but may not include a separate evaporator.
  • the battery heat exchanger 5 may be arranged between the expansion mechanism and the compressor in the refrigerant flow direction to cool the battery module 4 while functioning as an evaporator.
  • the battery pack P may include a plurality of battery modules 4, at least one of the plurality of battery modules 4 may be mounted on the battery heat exchanger 5, and may be disposed by the battery heat exchanger 5. Can be cooled. Preferably, a plurality of battery modules 4 are mounted on the battery heat exchanger 5. In this case, the battery heat exchanger 5 may cool the plurality of battery modules 4 simultaneously or sequentially.
  • At least one battery module 4 may be mounted on the battery heat exchanger 5, and the battery heat exchanger 5 may cool at least one battery module 4 positioned above the battery heat exchanger 5.
  • the battery heat exchanger 5 may include a pair of horizontal headers 110 and 120 and a plurality of refrigerant tubes 130 connected to the pair of horizontal headers 110 and 120.
  • the battery pack P may have at least one battery module 4 mounted on the plurality of refrigerant tubes 130, and the at least one battery module 4 may be cooled by the plurality of refrigerant tubes 130.
  • the battery heat exchanger 5 may further include a separate cooling plate 140 to which the plurality of refrigerant tubes 130 are in contact.
  • the battery heat exchanger 5 further includes a cooling plate 140
  • the plurality of refrigerant tubes 130 may be disposed on the bottom surface of the cooling plate 140.
  • the plurality of refrigerant tubes 130 may be disposed to contact the cooling plate 140 on the bottom surface of the cooling plate 140.
  • the pair of horizontal headers 110 and 120 may be disposed horizontally next to the cooling plate 140.
  • Lower and cooling plates 140 of the plurality of battery modules 4 may be located between the pair of headers 110 and 120 and may be protected by a pair of horizontal headers 110 and 120. have.
  • the space S1 of the upper portion of the cooling plate 140 among the spaces between the pair of horizontal headers 110 and 120 may be a space in which the lower portions of the plurality of battery modules 4 are accommodated.
  • the pair of headers 110 and 120 may be spaced apart in the longitudinal direction of the cooling plate 140.
  • the pair of horizontal headers 110 and 120 may be spaced apart from each other at a distance L3 greater than the length L2 of the cooling plate 140.
  • Each of the pair of horizontal headers 110 and 120 may be spaced apart from the cooling plate 140.
  • Each of the pair of horizontal headers 110 and 120 may have a refrigerant passage T formed therein.
  • a plurality of refrigerant tube insertion holes 112 may be formed in each of the pair of horizontal headers 110 and 120.
  • the refrigerant tube insertion hole 112 may be formed to face the other horizontal header on each of the pair of horizontal headers 110 and 120.
  • the height of the battery pack P may be determined according to the formation height of the refrigerant tube insertion hole 112.
  • the height of the coolant tube 130 may be high and the height of the battery module 4 may be high.
  • a portion located between the pair of horizontal headers 110 and 120 of the battery module 4 may be small, and the overall height L1 of the battery pack P may be high.
  • the height of the coolant tube 130 may be low and the height of the battery module 4 may also be low.
  • a portion accommodated between the pair of horizontal headers 110 and 120 of the battery module 4 may be large, and the overall height L1 of the battery pack P may be low.
  • the coolant tube insertion hole 112 is preferably formed at a relatively low height among the pair of horizontal headers 110 and 120.
  • Each of the plurality of refrigerant tubes 130 may be connected to a pair of horizontal headers 110 and 120.
  • Each of the plurality of coolant tubes 130 may include an inner tube part 132 inserted into the coolant flow path T through a coolant tube insertion hole, and an outer tube part positioned between the pair of horizontal headers 110 and 120. 134).
  • the inner tube part 132 may be provided at both sides of the outer tube part 134, and the plurality of refrigerant tubes 130 may include the outer tube part 134 between the pair of inner tube parts 132. Can be.
  • the inner tube part 132 may be a fixed tube part fixed to each of the horizontal headers 110 and 120.
  • the inner tube part 132 may be joined to the horizontal headers 110 and 120 by a method such as brazing bonding in a state of being inserted into the horizontal headers 110 and 120 through the refrigerant tube insertion hole 112. .
  • the outer tube portion 134 may be a contact tube portion whose outer surface directly contacts the bottom surface of the battery module 4 or contacts the bottom surface of the cooling plate 140.
  • the outer tube part 134 may be configured as a tube part in which one refrigerant passage is formed, and may be configured as a flat tube part in which a plurality of refrigerant channels are formed.
  • the battery heat exchanger 5 may include a plurality of heat exchange modules 101, 102, 103, 104, and 105, and a plurality of heat exchange modules 101 and 102.
  • the 103, 104, and 105 may be connected to the connection tube 106.
  • the connection tubes 106 may be connected in series or in parallel.
  • the plurality of heat exchange modules 101, 102, 103, 104, and 105 may be spaced apart from each other, and may be connected by a connection tube 106.
  • the plurality of heat exchange modules 101, 102, 103, 104, and 105 may be disposed in the carrier 1 to be spaced apart in the front and rear directions, and at least one may be spaced apart in the vertical direction from the others. have.
  • Each of the plurality of heat exchange modules 101, 102, 103, 104, and 105 may include horizontal headers 110 and 120, a plurality of refrigerant tubes 130, and a cooling plate 140. .
  • FIG. 3 is an enlarged cross-sectional view when the refrigerant tube shown in FIG. 2 is before brazing bonding with the horizontal header
  • FIG. 4 is an enlarged cross-sectional view when the refrigerant tube shown in FIG. 3 is brazing bonding with the horizontal header
  • FIG. 6 is a side view illustrating a header of a battery heat exchanger according to an embodiment of the present invention
  • FIG. 6 is a side view when the horizontal header shown in FIG. 5 is inclined
  • FIG. 7 is a comparative example of the present invention compared with an embodiment.
  • 8 is a side view when the horizontal header is inclined
  • FIG. 8 is a view illustrating a flow rate of the refrigerant tube along a gap between a lower end of the refrigerant tube and an inner lower surface of the horizontal header.
  • Each of the pair of horizontal headers 110 and 120 may have a plurality of refrigerant tube insertion holes 112 formed therein, and the plurality of refrigerant tube insertion holes 112 may extend in the longitudinal direction of the horizontal headers 110 and 120. X) can be spaced apart.
  • the battery heat exchanger 4 may include a bonding material 150 for joining the outer surface 133 of the inner tube part 132 and the inner surface 113 of the horizontal header 110 and 120.
  • the bonding material 150 ′ before the brazing bonding of the refrigerant tube 130 and the horizontal header 110 and 120 may be thin and evenly formed on the inner surface of the horizontal header 110 and 120.
  • the coolant tube 130 and the horizontal header 110 and 120 are put together in a brazing furnace (not shown). As shown, the bonding material 150 'formed evenly on the inner surface of the horizontal header 110, 120 is melted and flows along the inner surface of the horizontal header 110, 120, the inner tube portion ( It may be joined in a round shape as a whole along the outer circumference of the inner tube part 132 while filling the outer surface of the 132 and the refrigerant tube insertion hole 112.
  • a portion of the bonding material 150 may be located between the outer surface of the inner tube part 132 and the inner bottom surface 113A of the horizontal header 110 and 120.
  • a gap 131 may be formed between at least a portion of the bonding material 150 between the lower end 133A of the inner tube part 132 and the inner bottom 113A of the horizontal header 110 and 120.
  • the height G of the gap 131 may be 0.1 to 0.4 times the height H between the center line S2 of the horizontal header 110 and 120 and the inner bottom surface 113A of the horizontal header.
  • the center line S2 of the horizontal headers 110 and 120 is an imaginary line capable of dividing the horizontal headers 110 and 120 into upper and lower portions, and may be long in the horizontal direction.
  • the coolant tube insertion hole 112 may be eccentrically downward based on the center line S2.
  • the refrigerant tube insertion hole 112 may be located below the center line (S2) of the whole.
  • the coolant tube insertion hole 112 may be eccentrically larger than a region located below the center line S2.
  • the molten bonding material may penetrate into the inner tube part 132 and block the inside of the inner tube part 132 during brazing bonding.
  • the height of the gap 131 between the lower end 133A of the inner tube part 132 and the inner bottom 113A of the horizontal header 110 and 120 is preferably formed to a height at which the molten bonding material does not penetrate, and is approximately 0.9 mm. To 1.1 mm.
  • the molten bonding material may be minimized to penetrate into the inner tube part 132, and reliability of the brazing joint may be secured.
  • FIG. 6 shows that the height G of the gap 131 is 0.1 times the height H between the center line S2 of the horizontal header 110 and 120 and the inner bottom 113A of the horizontal header 110 and 120.
  • the refrigerant flow when 0.4 times is shown
  • FIG. 7 is a diagram showing the refrigerant flow when all the plurality of refrigerant tubes are located at the center height of the horizontal header.
  • the plurality of refrigerant tubes 130 may have different heights from the ground.
  • the first refrigerant tubes 130A having the lowest height are adjacent to each other in the longitudinal direction of the horizontal header and the first refrigerant tubes 130A.
  • the fourth refrigerant tube 130D having the highest height.
  • the refrigerant in the horizontal headers 110 and 120 is all the refrigerant tubes 130A, 130B, and 130C. It can be supplied evenly to 130D.
  • FIG 8 is a view showing the flow rate of the refrigerant tube according to the position and the gap of the refrigerant tube, when the horizontal header 110, 120 is tilted approximately 15 ° and the height of the plurality of refrigerant tubes 130 are different, The flow rate of the refrigerant tube 130 is shown.
  • FIG. 9 is a cross-sectional view showing various examples of the horizontal header according to an embodiment of the present invention
  • Figure 10 is a view showing the flow rate of the refrigerant according to the hydraulic diameter of the horizontal header according to an embodiment of the present invention
  • Figure 11 The flow pattern of the refrigerant according to the hydraulic diameter of the horizontal header according to an embodiment of the present invention is shown.
  • the horizontal headers 110 and 120 may be formed in various shapes, such as a cross section of a refrigerant passage T inside, a circle, a quadrangle, and a trapezoid.
  • FIG. 9A illustrates an example of a horizontal header having a rectangular cross-sectional shape of the refrigerant passage T
  • FIG. 9B illustrates an example of a horizontal header having a semicircular cross-sectional shape of the refrigerant passage T
  • 9C is an example in which the horizontal header whose cross-sectional shape of the refrigerant flow path T is close to a trapezoid is shown.
  • the hydraulic diameter Dh of the horizontal headers 110 and 120 may be greater than 0.25 times and less than 0.5 times the rated flow rate A of the battery heat exchanger 4.
  • the hydrodynamic diameter Dh of the horizontal headers 110 and 120 is defined as 4 X Ac / Pc, irrespective of the cross-sectional shape of the flow path T, where Ac is the cross section of the coolant flow path through which the coolant flows, and Pc May indicate the length of a line surrounding the refrigerant in the cross section of the refrigerant passage.
  • Hydraulic diameter of the horizontal headers 110, 120 when the circular pipe having an inner diameter of D, horizontal headers 110, 120 (Dh) is a 4 ( ⁇ D 2/4) / ⁇ D, the length of one side of a
  • the hydraulic diameter Dh of the horizontal header 110 and 120 is 4a 2 / 4a
  • the horizontal header 110 in the case of a rectangular duct shape having a short side a and a long side b, the horizontal header 110 (
  • the hydraulic diameter Dh of 120 may be 2ab / (a + b).
  • FIG. 10 is a view showing the position of the refrigerant tube and the flow rate of the refrigerant tube according to the hydraulic diameter.
  • FIG. 11A is a side view illustrating a distribution pattern of a refrigerant when the hydraulic diameter is A / 4
  • FIG. 11B is a cross-sectional view taken along line AA of FIG. 11A
  • FIG. 11 (C) is a side view showing the distribution pattern of the refrigerant when the hydraulic diameter is A / 3
  • Figure 11 (d) is a cross-sectional view taken along the line BB shown in Figure 11 (c)
  • (e) is a side view showing the distribution pattern of the refrigerant when the hydraulic diameter is A / 2
  • FIG. 11 (f) is a cross-sectional view along the line CC shown in FIG.
  • the horizontal headers 110 and 120 may be connected to a connection tube 106 through which refrigerant enters, and the refrigerant flows into the horizontal headers 110 and 120 through the connection tube 106 or the connection tube 106. Through the horizontal header 110, 120 may flow out.
  • Connection tube 106 may be connected to the longitudinal center of the horizontal header (110, 120). The connection tube 106 may be connected closer to the center refrigerant tube among the outer refrigerant tube and the center refrigerant tube. The connection tube 106 may be connected to be positioned above the pair of central refrigerant tubes.
  • connection tube 106 may be connected higher than the refrigerant tube 130.
  • the lower end of the connection tube 106 may be higher than the upper end of the refrigerant tube 130.
  • the horizontal headers 110 and 120 are drawn to both ends of the horizontal header when the hydraulic diameter is A / 4, and are drawn to the center of the horizontal header when the hydraulic diameter is A / 2. This occurs, and when the hydraulic diameter is A / 3, it can be seen that the refrigerant is evenly supplied to the plurality of refrigerant tubes.
  • the horizontal headers 110 and 120 preferably have a hydraulic diameter of A / 3.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)

Abstract

Le présent mode de réalisation de la présente invention comprend : une paire de collecteurs horizontaux ayant un passage de fluide frigorigène formé à l'intérieur de ceux-ci et ayant une pluralité de trous d'insertion de tubes de fluide frigorigène formés à l'intérieur de ceux-ci; une pluralité de tubes de fluide frigorigène ayant une partie de tube interne reliée à la paire de collecteurs horizontaux et insérée dans le passage de fluide frigorigène à travers les trous d'insertion de tubes de fluide frigorigène, et une partie de tube externe positionnée entre la paire de collecteurs horizontaux; et un matériau de liaison pour lier la surface externe de la partie de tube interne et la surface interne des collecteurs horizontaux, la pluralité de trous d'insertion de tubes de fluide frigorigène étant espacés dans la direction longitudinale du collecteur horizontal; un espace dans lequel au moins une partie du matériau de liaison est située est formé entre l'extrémité inférieure de la partie de tube interne et la surface inférieure interne des collecteurs horizontaux; la hauteur de l'espace est de 0,1 à 0,4 fois la hauteur entre la ligne centrale des collecteurs horizontaux et la surface inférieure interne des collecteurs horizontaux; même lorsqu'un véhicule est incliné, la pluralité de tubes de fluide frigorigène peut être distribuée de manière uniforme; et il existe un avantage en ce que l'écart de température d'un module de batterie peut être réduit au minimum.
PCT/KR2017/005475 2016-11-15 2017-05-25 Échangeur de chaleur de batterie et bloc-batterie comportant celui-ci WO2018092999A1 (fr)

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Application Number Priority Date Filing Date Title
CN201780070802.1A CN109952682A (zh) 2016-11-15 2017-05-25 电池热交换器及具备该电池热交换器的电池组

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KR10-2016-0152271 2016-11-15
KR1020160152271A KR20180054382A (ko) 2016-11-15 2016-11-15 배터리 열교환기 및 그를 갖는 배터리 팩

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KR102640328B1 (ko) 2018-10-19 2024-02-22 삼성에스디아이 주식회사 배터리의 대형 모듈
KR102640327B1 (ko) 2018-10-19 2024-02-22 삼성에스디아이 주식회사 배터리의 대형 모듈
KR102646853B1 (ko) 2018-10-19 2024-03-11 삼성에스디아이 주식회사 배터리 모듈
KR102640329B1 (ko) 2018-10-19 2024-02-22 삼성에스디아이 주식회사 배터리 모듈
KR20200044582A (ko) 2018-10-19 2020-04-29 삼성에스디아이 주식회사 배터리의 대형 모듈
KR102646854B1 (ko) 2018-10-19 2024-03-11 삼성에스디아이 주식회사 배터리 모듈

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