WO2020262275A1 - Échangeur de chaleur et son procédé de fabrication - Google Patents

Échangeur de chaleur et son procédé de fabrication Download PDF

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Publication number
WO2020262275A1
WO2020262275A1 PCT/JP2020/024299 JP2020024299W WO2020262275A1 WO 2020262275 A1 WO2020262275 A1 WO 2020262275A1 JP 2020024299 W JP2020024299 W JP 2020024299W WO 2020262275 A1 WO2020262275 A1 WO 2020262275A1
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WO
WIPO (PCT)
Prior art keywords
plate
shaped member
cooling
heat exchanger
pair
Prior art date
Application number
PCT/JP2020/024299
Other languages
English (en)
Japanese (ja)
Inventor
雅貴 内山
安浩 水野
森本　正和
厚志 矢沢
田中　聡
Original Assignee
株式会社デンソー
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.)
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Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Publication of WO2020262275A1 publication Critical patent/WO2020262275A1/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
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell 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 disclosure relates to a heat exchanger for cooling a storage battery and a method for manufacturing the heat exchanger.
  • a storage battery heat is generated as it is charged and discharged. If the temperature of the storage battery rises too much, the storage battery deteriorates and its charge / discharge performance deteriorates. Therefore, in addition to the storage battery, the vehicle as described above is provided with a heat exchanger for cooling the storage battery and keeping it at an appropriate temperature.
  • the heat exchanger described in Patent Document 1 below has a configuration in which a flow path through which a heat transfer medium, which is a fluid, flows is formed inside a heat exchange pouch.
  • the storage battery to be cooled is arranged in contact with the heat exchange pouch.
  • the storage battery is cooled by a heat transfer medium flowing inside the heat exchange pouch.
  • the heat exchanger described in Patent Document 1 is configured by joining foil walls, which are a pair of plate-shaped members, to each other to form an integral body. It is considered that each foil wall is formed by press working using a die.
  • the shape of the storage battery mounted on the vehicle is not unified, and various shapes of storage batteries are used depending on the vehicle type.
  • the number of storage batteries mounted on the vehicle also differs depending on the vehicle. Since the heat exchanger needs to cool the entire storage battery, it is necessary to appropriately design the shape according to the shape and number of the storage batteries.
  • An object of the present disclosure is to provide a heat exchanger capable of suppressing a manufacturing cost and a manufacturing method thereof.
  • the heat exchanger according to the present disclosure is a heat exchanger for cooling the storage battery, and includes a plurality of cooling units, which are portions that come into contact with the storage battery and cool the storage battery by a fluid passing through an inner flow path. It is provided with a pair of distribution units connected to both ends of the cooling unit and which are portions for distributing fluid to the cooling unit. Each cooling portion is formed by joining a pair of plate-shaped members to each other. This heat exchanger is configured by connecting each cooling unit to each other via a connecting member.
  • a heat exchanger having such a configuration is configured by connecting a plurality of cooling portions composed of a pair of plate-shaped members via a connecting member. Therefore, it is not necessary to form the entire heat exchanger by press working, and it is not necessary to prepare a large mold for that purpose. It should be noted that at least a part of the above-mentioned distribution unit is configured as a connecting member.
  • the method for manufacturing a heat exchanger according to the present disclosure is a method for manufacturing a heat exchanger having the above configuration, in which at least one of a pair of plate-shaped members has a linear flow path along the longitudinal direction thereof.
  • the distribution unit is formed by pressing the ends of the plate-shaped member in which the linear flow path is formed in the first step and the first step in which the linear flow path is formed by roll forming, along the longitudinal direction thereof. It has a second step of forming a connecting portion which is a portion connected to the above, and a third step of joining a pair of plate-shaped members to each other.
  • the first step is a step of forming a linear flow path, which is a linear flow path along the longitudinal direction of the plate-shaped member, by roll molding.
  • the length of the plate-shaped member obtained in the first step can be easily adjusted so as to be a length corresponding to the number of storage batteries arranged along the longitudinal direction of each cooling portion.
  • the end portion of the plate-shaped member in which the linear flow path is formed in the first step is pressed along the longitudinal direction to form a connecting portion which is a portion connected to the distribution portion. It is a process to do. Since the press working only needs to be applied to the end portion of the plate-shaped member, not the entire plate-shaped member, a relatively small die can be used. Further, since the shape of the connection portion can be a common shape regardless of the shape and the number of storage batteries, there are not too many types of molds to be prepared.
  • the third step is a step of joining a pair of plate-shaped members to each other to form a cooling portion. After the third step or at the same time as the third step, if a plurality of cooling portions are joined to each other via a connecting member and connected, the heat exchanger having the above configuration can be obtained.
  • a heat exchanger capable of suppressing the manufacturing cost and a manufacturing method thereof are provided.
  • FIG. 1 is a diagram showing an overall configuration of a heat exchanger according to the first embodiment.
  • FIG. 2 is a diagram schematically showing a state in which a storage battery is installed in the heat exchanger.
  • FIG. 3 is a diagram showing a pair of plate-shaped members forming a part of the heat exchanger.
  • FIG. 4 is a diagram showing the shape of one of the pair of plate-shaped members.
  • FIG. 5 is a diagram for explaining a method of manufacturing a heat exchanger.
  • FIG. 6 is a diagram showing the shape of the plate-shaped member at the time when the first step is completed.
  • FIG. 7 is a diagram for explaining a method of manufacturing a heat exchanger.
  • FIG. 8 is a diagram schematically showing the overall configuration of the heat exchanger according to the second embodiment.
  • FIG. 1 is a diagram showing an overall configuration of a heat exchanger according to the first embodiment.
  • FIG. 2 is a diagram schematically showing a state in which a storage battery is installed in the heat exchange
  • FIG. 9 is a diagram showing the shape of a plate-shaped member constituting a part of the heat exchanger according to the second embodiment.
  • FIG. 10 is a diagram showing the shape of a plate-shaped member constituting a part of the heat exchanger according to the second embodiment.
  • FIG. 11 is a diagram for explaining the configuration of the heat exchanger according to the third embodiment.
  • the heat exchanger 10 is a device mounted together with the storage battery 20 in an electric vehicle (not shown), and is configured as a device for cooling the storage battery 20 and keeping the temperature at an appropriate temperature.
  • the configuration of the heat exchanger 10 will be described with reference to FIG. As shown in the figure, the heat exchanger 10 includes a cooling unit 11 and a distribution unit 12.
  • the cooling unit 11 is a portion that comes into contact with the storage battery 20 to cool the storage battery 20.
  • the cooling unit 11 is configured as a tubular member extending linearly, and a flow path FP through which a fluid flows is formed inside the cooling unit 11. The specific arrangement of the flow path FP will be described later with reference to FIG.
  • the cooling unit 11 has a substantially rectangular shape when viewed from above.
  • a plurality of cooling units 11 are provided, and are arranged along a direction perpendicular to the longitudinal direction of each.
  • Each cooling unit 11 is parallel to each other, and both ends thereof are connected to the distribution unit 12.
  • a plurality of storage batteries 20 are arranged on the upper surface of the cooling unit 11 as shown in FIG. That is, the upper surface of the cooling unit 11 is in contact with the lower end of each storage battery 20.
  • a low-temperature fluid is flowed through the flow path FP of the cooling unit 11.
  • each storage battery 20 is cooled by the fluid flowing through the flow path FP, and its temperature is lowered.
  • the cooling unit 11 according to the present embodiment is configured as a portion that comes into contact with the storage battery 20 and cools the storage battery 20 by the fluid passing through the inner flow path FP.
  • the cooling unit 11 arranged at the position at the left end in FIG. 1 is provided with an inlet portion 13 and an outlet portion 14.
  • the inlet portion 13 is a portion for receiving a fluid supplied from the outside.
  • the outlet portion 14 is a portion for discharging the fluid after being subjected to heat exchange through the cooling portion 11 to the outside.
  • the inlet portion 13 and the outlet portion 14 are arranged so as to be lined up along the longitudinal direction at a position substantially centered along the longitudinal direction of the cooling portion 11.
  • the flow paths FPs are separated from each other inside the cooling unit 11 at a position between the inlet portion 13 and the outlet portion 14.
  • the flow path of the fluid in the heat exchanger 10 is indicated by a plurality of arrows.
  • the distribution unit 12 is a pair of tubular portions for distributing the fluid to each cooling unit 11. Each distribution unit 12 is arranged so that its longitudinal direction is perpendicular to the longitudinal direction of the cooling unit 11. One distribution unit 12 is connected to one end of each cooling unit 11, and the other distribution unit 12 is connected to the other end of each cooling unit 11. The fluid is supplied from one distribution unit 12 to each cooling unit 11 and then flows into the other distribution unit 12 through the flow path FP. As a result, the flow of the fluid as shown by the arrow in FIG. 1 is realized.
  • the cooling unit 11 and the portions of the distribution unit 12 connected to both ends of the cooling unit join the pair of plate-shaped members 100 and 200 shown in FIG. Therefore, the whole is configured to be one. That is, a part of the distribution unit 12 and the cooling unit 11 are integrally formed on the plate-shaped members 100 and 200, respectively.
  • the plate-shaped members 100 and 200 joined to each other are connected to each other via a plurality of tubular members 30.
  • the tubular member 30 is a tubular member having a flat cross section, and a flow path (not shown) is formed inside the tubular member 30.
  • each of the tubular members 30 is connected to both ends of the plate-shaped members 100 and 200 along the longitudinal direction, and connects between the plate-shaped members 100 and 200 adjacent to each other. ..
  • the extending direction of the flow path formed inside the tubular member 30 is the direction perpendicular to the longitudinal direction of the cooling portion 11, that is, the extending direction of the distribution portion 12.
  • the end portions of the plate-shaped members 100 and 200 along the longitudinal direction and the tubular members 30 are arranged so as to be alternately arranged and connected to each other, and the whole connected in this way is , The above-mentioned distribution unit 12.
  • the respective cooling portions 11 are formed by joining the pair of plate-shaped members 100 and 200 to each other. Further, the heat exchanger 10 is configured by connecting the cooling units 11 to each other. The cooling unit 11 is connected via the tubular member 30. Such a tubular member 30 corresponds to the "connecting member" in the present embodiment.
  • the plate-shaped member 100 and the plate-shaped member 200 are both rectangular members, and their respective shapes in the top view are substantially the same. That is, when the pair of plate-shaped members 100 and 200 are viewed along the direction in which they are joined to each other, the outer shapes (the above-mentioned "rectangle") of the plate-shaped members 100 and 200 are the same as each other.
  • the plate-shaped member 100 is flat as a whole.
  • the plate-shaped member 200 has a recess formed on its surface, whereby a flow path FP or the like is formed between the plate-shaped member 200 and the plate-shaped member 100.
  • the plate-shaped member 100 and the plate-shaped member 200 are overlapped with each other in the vertical direction, and are connected to each other by an adhesive to be integrated.
  • an adhesive for example, a silicone adhesive, an epoxy adhesive, a polyurethane adhesive, or the like can be used. Instead of joining with an adhesive, joining by welding such as brazing, laser welding, resistance welding and the like may be performed.
  • the plate-shaped member 100 is arranged so as to be on the upper side. Therefore, the upper surface of the plate-shaped member 100 is a portion that the storage battery 20 comes into contact with, as shown in FIG.
  • FIG. 4 is a schematic view of the plate-shaped member 200 viewed from the upper side, that is, the side to which the plate-shaped member 100 is joined.
  • the plate-shaped member 200 is formed with a recess that retracts toward the back side of the paper surface, that is, the side opposite to the plate-shaped member 100 in FIG. 4 by roll forming or press working described later.
  • a portion of the plate-shaped member 200 other than the recess, that is, a portion that abuts and is joined to the plate-shaped member 100 is shaded.
  • a recess 210 is formed by retracting the plate-shaped member 200 in a concave shape.
  • the recess 210 is a flow path for the fluid to flow in the distribution section 12.
  • Recesses 211 are formed by retracting the plate-shaped member 200 in a concave shape at positions adjacent to each other on both sides of the recess 210 along the flow path direction of the distribution portion 12, that is, the lateral direction of the plate-shaped member 200. ..
  • the amount of retreat in the recess 211 is larger than the amount of retreat in the recess 210.
  • the recess 211 is a portion through which the tubular member 30 is inserted and joined.
  • the distribution portion 12 of the plate-shaped member 200 formed on one end side and the distribution portion 12 of the plate-shaped member 200 formed on the other end side have symmetrical shapes.
  • a cooling portion 11 of the plate-shaped member 200 is formed between the two as described above.
  • the recess 220 and the recess 230 are formed by retracting the plate-shaped member 200 in a concave shape.
  • the recesses 220 are formed so as to extend linearly along the longitudinal direction of the plate-shaped member 200, and are formed so as to line up three recesses along the lateral direction of the plate-shaped member 200.
  • the recess 230 is formed so as to connect the ends of the recesses 220 adjacent to each other so that the three recesses 220 are connected to form one flow path.
  • the recess 220 and the recess 230 are all one flow path, and the flow path is the flow path FP described above.
  • the fluid flows in a path of one reciprocating and a half along the longitudinal direction of the plate-shaped member 200.
  • the recess 230 corresponds to a "folded portion" that connects the recesses 220 to form a single flow path.
  • a recess 240 is formed at a position between the distribution portion 12 of the plate-shaped member 200 and the cooling portion 11 of the plate-shaped member 200 by retracting the plate-shaped member 200 in a concave shape.
  • the recess 240 connects the flow path FP and the recess 210.
  • Such a recess 240 can be said to be a portion of the cooling unit 11 connected to the distribution unit 12. That is, the recess 240 corresponds to the "connection portion" in the present embodiment.
  • the recesses 240, which are the connecting portions, are formed at positions at both ends of the flow path FP. The fluid flows into the flow path FP from the distribution portion 12 on one side through the recess 240. After passing through the flow path FP, the fluid flows out to the distribution section 12 on the other side through the recess 240.
  • FIG. 5 schematically shows a part of the steps for forming the plate-shaped member 200.
  • reference numeral 310 is a coil material obtained by rolling a metal plate, which is a material of the plate-shaped member 200, into a roll shape.
  • the coil material is also referred to as “coil material 310”.
  • the metal plate for example, aluminum, copper, iron or the like can be used.
  • the coil material 310 is attached to a feeding device (not shown) and rotates around its central axis in the direction indicated by the arrow in FIG. As a result, the flat plate-shaped member 311 is sent out from the coil material 310 at a constant speed.
  • the plate-shaped member 311 is a member that finally becomes the plate-shaped member 200.
  • reference numeral 320 is a pair of rollers provided in the roll forming machine. Hereinafter, these rollers are also referred to as “roller 320". On the outer peripheral surface of each roller 320, irregularities (not shown) facing each other are formed.
  • the plate-shaped member 311 is deformed by being sandwiched between rollers 320 and performing so-called roll forming, and becomes a plate-shaped member 312 in which a plurality of linear recesses are formed along the longitudinal direction thereof. After that, the plate-shaped member 312 is cut to a predetermined length by the cutting machine 330 to become the plate-shaped member 313.
  • the plate-shaped member 313 formed as described above is drawn from the same viewpoint as in FIG.
  • diagonal lines are provided on the portions excluding the concavely retracted portion due to roll molding.
  • the portion not shaded is a linear recess 220 extending along the longitudinal direction of the plate-shaped member 313.
  • the recess 220 is formed so as to extend from one end to the other end of the plate-shaped member 313 in the longitudinal direction.
  • Three recesses 220 are formed so as to be lined up along the lateral direction of the plate-shaped member 313.
  • Each recess 220 is the source of the recess 220 shown in FIG. 4, and finally becomes the flow path FP.
  • Such a recess 220 corresponds to the "straight flow path" in the present embodiment.
  • the process described above that is, the process until the plate-shaped member 313 is formed, is formed along the longitudinal direction of the plate-shaped member 200, which is one of the pair of members for forming the cooling portion 11.
  • This is a step of forming a linear flow path, which is a linear flow path, by roll molding.
  • the step corresponds to the "first step" in the present embodiment.
  • FIG. 6 shows the shape of the plate-shaped member 313 at the time when the first step is completed.
  • the plate-shaped member 100 shown in FIG. 3 is also separately formed.
  • the method for forming the plate-shaped member 100 can be formed by going through the same steps as those described above without using the roller 320 shown in FIG.
  • FIG. 7 schematically shows a step for forming the plate-shaped member 200, which is performed following the first step. In this step, both ends of the plate-shaped member 313 along the longitudinal direction are pressed.
  • reference numeral 340 is a pair of dies that directly sandwich the plate-shaped member 313 in the press machine.
  • the mold is also referred to as "mold 340".
  • the portion sandwiched between the dies 340 and pressed is the portion surrounded by the dotted line DL1 in FIG.
  • the portion of the plate-shaped member 200 that has been pressed is also surrounded by the dotted line DL1. That is, the portion of the plate-shaped member 313 shown in FIG. 6 surrounded by the dotted line DL1 is plastically deformed by being pressed, and is surrounded by the dotted line DL1 of the plate-shaped member 200 shown in FIG. It becomes the part that is.
  • the recess 240 which is the connecting portion, the distribution portion 12 which is connected to the cooling portion 11 via the connecting portion, and the recess 230 which is the folded portion are formed by the press working. It is formed on the shape member 200 at the same time.
  • the step of forming the plate-shaped member 200 of FIG. 4 by pressing the plate-shaped member 313 is a step performed following the first step, and is the "second step" in the present embodiment. It corresponds to.
  • the distribution section 12 is formed by pressing the end portion of the plate-shaped member 313 in which the recess 220, which is a linear flow path, is formed in the first step along the longitudinal direction thereof. It is a process of forming a connecting portion which is a portion connected to.
  • the plate-shaped member 200 which is one of the pair of members for forming the cooling portion 11.
  • a folded portion that is, a recess 230, which connects the recesses 220 to form a single flow path, is formed together with the recess 240 and the like.
  • a part of the distribution portion 12 that is, a portion of the distribution portion 12 shown in FIG. 1 excluding the tubular member 30 is also formed at the same time on the plate-shaped member 200.
  • the plate-shaped member 100 and the plate-shaped member 200 are overlapped as shown in FIG. 3 and joined to each other with an adhesive.
  • the cooling unit 11 is formed.
  • the heat exchanger 10 shown in FIG. 1 can be obtained by connecting the joined bodies, which are the cooling portions 11, with a plurality of tubular members 30 and joining them with an adhesive.
  • Such a joining step is a step performed following the second step, and corresponds to the "third step" in the present embodiment.
  • the cooling portion 11 is formed by joining the plate-shaped member 100 and the plate-shaped member 200, and the cooling portion 11 is connected by adhering to the tubular member 30 at the same time.
  • the joining of each member in the third step may be bonding with an adhesive as in the present embodiment, or may be brazing with a brazing material.
  • the pair of plate-shaped members 100 and 200 to be joined to each other have their respective outer shapes when viewed along the direction in which they are joined. It is the same.
  • the cooling unit 11 arranged on the leftmost side in FIG. 1 is manufactured through a process different from the second process as described above. As described above, at the position between the inlet portion 13 and the outlet portion 14, the flow path FPs are separated from each other inside the cooling portion 11. In order to form such a flow path FP, it is necessary to separately press the portions in the vicinity of the inlet portion 13 and the outlet portion 14. Further, a step for forming the inlet portion 13 and the outlet portion 14 with respect to the plate-shaped members 100 and 200 constituting the cooling portion 11 is also separately executed.
  • the advantages of the heat exchanger 10 obtained by the above manufacturing method will be described.
  • the shape of the storage battery 20 mounted on the vehicle is not unified, and the storage battery 20 having various shapes is used depending on the vehicle type and the like.
  • the number of storage batteries 20 mounted on the vehicle also differs depending on the vehicle. Since the heat exchanger 10 needs to cool the entire plurality of storage batteries 20, it is necessary to appropriately design the shape according to the shape and the number of the storage batteries 20.
  • the cooling unit 11 when the number of storage batteries 20 arranged on one cooling unit 11 is large, or when the size of the storage batteries 20 along the longitudinal direction of the cooling unit 11 is large, it is necessary to form the cooling unit 11 longer. is there.
  • the plate-shaped members 100 and 200 constituting the cooling unit 11 are formed by roll molding as described with reference to FIG. 5, the length of the cooling unit 11 along the longitudinal direction can be easily increased. Can be adjusted to.
  • the heat exchanger 10 has a configuration in which a plurality of cooling units 11 are connected by a tubular member 30 which is a connecting member, the number of cooling units 11 can be easily increased or decreased. ..
  • the shape of the heat exchanger 10 according to the present embodiment can be easily changed according to the number and shape of the storage batteries 20. Further, since it is not necessary to prepare a plurality of types of large dies and the dies can be formed by the small dies 340, the manufacturing cost thereof can be significantly suppressed as compared with the conventional case.
  • the alternate long and short dash line L1 shown in FIG. 4 is a linear groove formed in a portion of the plate-shaped member 200 in which a part of the distribution portion 12 is formed.
  • the groove is a groove having a minute depth formed as a result of deformation of a corner portion of the recess 220 when the plate-shaped member 313 shown in FIG. 6 is pressed. These grooves are formed so as to extend to the portion shaded in FIG. 4, that is, the portion joined to the plate-shaped member 100. Since the contact area with the adhesive is increased by the groove, the joint strength between the plate-shaped member 100 and the plate-shaped member 200 is increased.
  • a plurality of grooves are formed in the portion of the plate-shaped member 200 in which a part of the distribution portion 12 is formed. By forming these grooves, the joint strength of the pair of plate-shaped members 100 and 200 is increased.
  • the width dimension of the plate-shaped member 200 along the lateral direction is drawn so as to be uniform throughout the plate-shaped member 200.
  • the width dimension of the portion of the plate-shaped member 200 where the distribution portion 12 is formed is slightly larger than the width dimension of the portion where the cooling portion 11 is formed.
  • Such a difference in width dimension is due to local press working on the range of the dotted line DL1.
  • the recess 211 which is a portion through which the tubular member 30 is inserted and joined, is formed large. As a result, the joint strength between the tubular member 30 and the plate-shaped member 200 is increased.
  • one flow path FP is formed by connecting a plurality of recesses 220 with a folded-back portion 230.
  • the fluid flows in a path that makes one and a half round trips along the longitudinal direction of the cooling unit 11. If the flow path FP is formed so that the fluid flows linearly without folding back, the temperature difference of the fluid between one end side and the other end side along the longitudinal direction of the cooling portion is large. turn into.
  • the flow path FP since the flow path FP is formed so that the fluid reciprocates and a half along the longitudinal direction of the cooling unit 11, the temperature difference as described above is suppressed, and each storage battery 20 Can be cooled evenly.
  • the flow path length of the flow path FP becomes long, and the flow path resistance of the flow path FP increases. Therefore, the variation in the amount of fluid distributed to the plurality of cooling units 11 can be suppressed to a low level. As a result, each storage battery 20 can be cooled more evenly.
  • the concave portions 220 and the like are formed only on the plate-shaped member 200 in the first step and the second step, and the plate-shaped member 100 is a flat member as a whole.
  • the plate-shaped member 100 may also have an embodiment in which the recess 220 or the like is formed by the same method as described above.
  • the first step and the second step may be performed on the plate-shaped member 100 so that the plate-shaped member 100 has a symmetrical shape with the plate-shaped member 200.
  • the first step is a step of forming a plurality of linear flow paths, which are linear flow paths along the longitudinal direction, on both of the pair of plate-shaped members 100 and 200, not one of them, by roll molding. It may be. Further, the second step may be a step of forming a connecting portion or the like by press working on both of the pair of plate-shaped members 100 and 200 instead of one.
  • the second embodiment will be described. In the following, the points different from the first embodiment will be mainly described, and the points common to the first embodiment will be omitted as appropriate.
  • FIG. 8 schematically shows the overall configuration of the heat exchanger 10 according to the present embodiment.
  • each of the pair of distribution units 12 is configured as a single tubular member.
  • the cooling unit 11 and the distribution unit 12 are connected by a tubular member 30.
  • the extending direction of the flow path formed inside the tubular member 30 is the direction along the longitudinal direction of the cooling unit 11, that is, the direction perpendicular to the extending direction of the distribution unit 12. ..
  • FIG. 9 shows a part of the plate-shaped members 200 among the pair of plate-shaped members 100 and 200 constituting the cooling unit 11. Although only the shape near the end on one side of the plate-shaped member 200 is shown in FIG. 9, the shape near the end on the other side of the plate-shaped member 200 is shown in FIG. The shape is symmetrical to the shape of the part.
  • the plate-shaped member 200 is formed through the same first step and second step as those described above. However, this embodiment is different from the first embodiment in the shape of the portion formed by the press working in the second step.
  • the press-processed portion of the plate-shaped member 200 is surrounded by the dotted line DL2 in FIG.
  • the recess 230 which is a folded portion and the recess 240 which is a connecting portion are formed by press working, but the "distributing portion 12 of the plate-shaped member 200" as in the first embodiment is not formed. ..
  • the alternate long and short dash line L1 shown in FIG. 9 is a linear groove formed in the plate-shaped member 200.
  • the groove is a groove having a minute depth formed when the press working is performed, and is similar to the groove shown by the alternate long and short dash line L1 in FIG.
  • the recess 240 is an end portion of the plate-shaped member 200 in the longitudinal direction, and is formed at a position that is an end portion of the flow path FP.
  • the recess 240 is a portion through which the tubular member 30 is inserted and joined.
  • the distribution unit 12 in the present embodiment is formed by joining a pair of plate-shaped members 100 (not shown) and 200 to each other, similarly to the cooling unit 11.
  • FIG. 10 shows a part of the plate-shaped members 200 among the pair of plate-shaped members 100 and 200 constituting the cooling unit 11.
  • the plate-shaped member 200 is also formed through the same first and second steps as those described above.
  • the plate-shaped member 200 is formed with a single recess 210 extending along the longitudinal direction thereof.
  • a plurality of recesses 250 are formed by pressing the plate-shaped member 200.
  • the press-processed portion of the plate-shaped member 200 is surrounded by the dotted line DL3 in FIG.
  • the recess 250 is a portion through which the tubular member 30 is inserted and joined.
  • a plurality of cooling portions 11 are connected to each other via a tubular member 30 and a distribution portion 12.
  • the entire tubular member 30 and the distribution unit 12 correspond to the "connecting member" in the present embodiment. Even with such a configuration, the same effect as that described in the first embodiment can be obtained.
  • the third embodiment will be described. In the following, the points different from the first embodiment will be mainly described, and the points common to the first embodiment will be omitted as appropriate.
  • FIG. 11 is a schematic view of a part of a cross section when the cooling unit 11 according to the present embodiment is cut in a plane perpendicular to the longitudinal direction thereof.
  • the portion with reference numeral 260 and the portion with reference numeral 270 are joined to the portion corresponding to the portion shaded in FIG. 4, that is, the plate-shaped member 100 of the plate-shaped member 200. This is the part.
  • the entire portion joined to the plate-shaped member 100 is not flat, but a part thereof protrudes toward the plate-shaped member 100.
  • reference numeral 270 is attached to such a protruding portion.
  • this part will also be referred to as "protruding portion 270".
  • the protrusion 270 is formed in a portion inside the portion joined to the plate-shaped member 100.
  • the periphery of the protrusion 270 is surrounded by a portion designated by reference numeral 260 in FIG.
  • reference numeral 600 is attached to the adhesive.
  • the adhesive around the protruding portion 270 is thickened.
  • the radius of curvature of the fillet 610 formed in the adhesive is increased, and as a result, the bonding strength by the adhesive is further increased.
  • the protrusion 270 can be formed in the entire range inside the shaded portion in FIG. Before joining the plate-shaped member 100 and the plate-shaped member 200, the adhesive may be applied in advance to a range of the plate-shaped member 200 that covers the entire protruding portion 270.
  • a protruding portion 270 is formed so as to project toward the other plate-shaped member 100.
  • a protruding portion 270 may be formed in each of the first step and the second step described above.

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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)

Abstract

L'invention concerne un échangeur de chaleur (10) comprenant : une pluralité de sections de refroidissement (11) qui entrent en contact avec une batterie de stockage (20) et qui sont des sections pour refroidir la batterie de stockage au moyen d'un fluide passant à travers un passage d'écoulement interne (FP)) ; et une paire de sections de distribution (12) qui sont reliées aux deux extrémités de chacune des sections de refroidissement et qui sont des sections pour distribuer le fluide aux sections de refroidissement. Chacune des sections de refroidissement est formée par liaison d'une paire d'éléments de plaque (100, 200) l'un à l'autre. L'échangeur de chaleur (10) est configuré en reliant mutuellement les sections de refroidissement par l'intermédiaire d'éléments de connexion (30).
PCT/JP2020/024299 2019-06-28 2020-06-22 Échangeur de chaleur et son procédé de fabrication WO2020262275A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-121078 2019-06-28
JP2019121078A JP2021007085A (ja) 2019-06-28 2019-06-28 熱交換器及びその製造方法

Publications (1)

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WO2020262275A1 true WO2020262275A1 (fr) 2020-12-30

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PCT/JP2020/024299 WO2020262275A1 (fr) 2019-06-28 2020-06-22 Échangeur de chaleur et son procédé de fabrication

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JP (1) JP2021007085A (fr)
WO (1) WO2020262275A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014191916A (ja) * 2013-03-26 2014-10-06 Mitsubishi Motors Corp 冷却装置
JP2019086254A (ja) * 2017-11-09 2019-06-06 株式会社デンソー 蒸発器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014191916A (ja) * 2013-03-26 2014-10-06 Mitsubishi Motors Corp 冷却装置
JP2019086254A (ja) * 2017-11-09 2019-06-06 株式会社デンソー 蒸発器

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