WO2023145348A1 - 熱交換器 - Google Patents
熱交換器 Download PDFInfo
- Publication number
- WO2023145348A1 WO2023145348A1 PCT/JP2022/047681 JP2022047681W WO2023145348A1 WO 2023145348 A1 WO2023145348 A1 WO 2023145348A1 JP 2022047681 W JP2022047681 W JP 2022047681W WO 2023145348 A1 WO2023145348 A1 WO 2023145348A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base
- flow path
- film
- heat exchange
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
-
- 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
- H01M10/6556—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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the 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
- H01M10/65—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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/04—Reinforcing means for conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
-
- 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
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- 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
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
Definitions
- the present invention relates to heat exchangers.
- a device is, for example, a battery cell.
- the equipment preferably comprises a heat exchanger for cooling the device.
- Patent Document 1 discloses a heat exchanger including a plurality of heat exchange bodies corresponding to each device. Each heat exchange body is located between two devices. Therefore, each device can be cooled evenly. As a result, devices such as power storage devices and storage batteries can be protected. For example, it is possible to suppress deterioration in the performance and safety of the device due to heat. Moreover, each heat exchange body is composed of a flexible film. For this reason, weight reduction is achieved as compared with the case where the heat exchange body is made of metal.
- Each heat exchange body in Patent Document 1 includes an inlet for introducing a medium into the heat exchange body, an outlet for discharging the medium from the heat exchange body, and joint pipes attached to the inlet and the outlet.
- Two adjacent heat exchange bodies are connected via a pipe connected to a joint pipe. Therefore, the manufacturing process of the device includes many processes such as a process of attaching joint pipes and a process of connecting pipes. Also, the number of parts constituting the equipment increases. This results in a high cost manufacturing process for the device.
- An object of the present invention is to provide a heat exchanger that can solve such problems.
- the present invention is a heat exchanger that exchanges heat with a plurality of target members arranged in a first direction, a base portion including a first base channel and a second base channel for flowing media in the first direction; A plurality of first heat exchange bodies connected to the base portion, positioned between the two target members and aligned in the first direction, wherein the medium is circulated in a second direction crossing the first direction. and a plurality of first heat exchange bodies including a first flow path that allows
- the first heat exchange body includes a front portion and a back portion formed by folding back a first film, and a first outer edge that joins the inner surfaces of the first film along the outer edges of the front portion and the back portion.
- the base portion is a heat exchanger that includes the first film.
- the base portion includes an inlet portion located at a first end in the first direction and supplying the medium to the first base flow path, and the first end in the first direction. and an outlet located opposite to for discharging the medium from the second base channel.
- the heat exchanger according to the present invention may include a first reinforcing member inserted between the front portion and the back portion of the first heat exchange body and surrounded by the first partition joint portion.
- a heat exchanger comprises: a base reinforcing member located between the first base flow channel and the second base flow channel; and the first reinforcing member of the reinforcing structure.
- the base portion is positioned between a second film including an inner surface facing the inner surface of the first film, the first base channel and the second base channel, a base section joint joining the inner surface of one film and the inner surface of the second film.
- the second film may spread flatly at a position where the first section joint and the base section joint are connected.
- the heat exchanger according to the present invention includes a plurality of second heat exchange elements connected to the base portion and arranged in the first direction, the heat exchanger including a second flow path for circulating the medium in the second direction.
- a second heat exchange body may be provided.
- the second heat exchange body includes a front portion and a back portion formed by folding back a second film, and a second outer edge that joins the inner surfaces of the second film along the outer edges of the front portion and the back portion. and a junction portion of the second film so as to partition the second flow path into a second forward flow path connected to the first base flow path and a second return flow path connected to the second base flow path. and a second compartment joint that joins the inner surfaces.
- the number of man-hours required for manufacturing a heat exchanger can be reduced. Also, the number of parts constituting the heat exchanger can be reduced.
- FIG. 1 is a perspective view showing a heat exchanger according to a first embodiment
- FIG. 1 is a perspective view showing a power supply module according to a first embodiment
- FIG. FIG. 2 is a cross-sectional view of the heat exchanger of FIG. 1 taken along line AA
- FIG. 2 is a cross-sectional view showing the case where the heat exchanger of FIG. 1 is cut along line BB.
- FIG. 3 is a cross-sectional view showing the case where the power supply module in FIG. 2 is cut along line CC
- FIG. 3 is a cross-sectional view showing the case where the power supply module of FIG. 2 is cut along line DD;
- FIG. 2 is a diagram showing one manufacturing process of a heat exchanger;
- FIG. 1 is a perspective view showing a power supply module according to a first embodiment
- FIG. 2 is a cross-sectional view of the heat exchanger of FIG. 1 taken along line AA
- FIG. 2 is a cross-sectional view showing the case where the heat
- FIG. 2 is a diagram showing one manufacturing process of a heat exchanger;
- FIG. 2 is a diagram showing one manufacturing process of a heat exchanger;
- FIG. 2 is a diagram showing one manufacturing process of a heat exchanger;
- FIG. 2 is a diagram showing one manufacturing process of a heat exchanger;
- FIG. 2 is a diagram showing one manufacturing process of a heat exchanger;
- FIG. 2 is a diagram showing one manufacturing process of a heat exchanger;
- FIG. 4 is a diagram showing a process of combining a heat exchanger and a battery cell; It is a perspective view which shows the heat exchanger which concerns on a 1st modification.
- FIG. 4 is a diagram showing a process of combining a heat exchanger and a battery cell; It is a perspective view which shows the heat exchanger which concerns on a 1st modification.
- FIG. 4 is a diagram showing a process of combining a heat exchanger and a battery cell; It is a perspective view which shows the heat exchange
- FIG. 11 is a perspective view showing a power supply module according to a first modified example
- FIG. 18 is a cross-sectional view of the heat exchanger of FIG. 17 taken along line EE
- FIG. 18 is a cross-sectional view showing the case where the heat exchanger of FIG. 17 is cut along the FF line
- It is a perspective view which shows an example of a spacer.
- FIG. 1 is a perspective view showing an example of the heat exchanger 10.
- FIG. The heat exchanger 10 exchanges heat with a plurality of target members arranged in the first direction D1.
- the target member is, for example, a battery cell.
- FIG. 2 is a perspective view showing an example of a power supply module 100 including a heat exchanger 10 and a plurality of battery cells 110. As shown in FIG. Two battery cells 110 adjacent in the first direction D ⁇ b>1 may be electrically connected by a connecting member 120 .
- the heat exchanger 10 will be explained in detail.
- the heat exchanger 10 comprises a base portion 20 and a plurality of first heat exchange bodies 30 connected to the base portion 20 .
- the base portion 20 includes a first base channel 21 and a second base channel 22 for flowing media in a first direction D1. Both the first base channel 21 and the second base channel 22 extend in the first direction D1.
- the first base flow path 21 flows the medium before heat exchange with the battery cell 110 . That is, the first base channel 21 is located upstream of the battery cell 110 .
- the second base flow path 22 flows the medium after heat exchange with the battery cell 110 . That is, the second base channel 22 is positioned downstream of the battery cell 110 .
- the medium is not particularly limited, it is, for example, water.
- the base portion 20 may include an inlet portion 27 and an outlet portion 28 .
- the inlet portion 27 is located at the first end of the base portion 20 in the first direction D1.
- the inlet portion 27 introduces the medium into the first base channel 21 .
- the outlet portion 28 is located at the second end of the base portion 20 in the first direction D1.
- the second end is located on the opposite side of the first end in the first direction D1.
- the outlet portion 28 ejects the medium from the second base channel 22 .
- An introduction member 61 may be attached to the entrance portion 27 as shown in FIG. Also, a discharge member 62 may be attached to the outlet portion 28 .
- the introduction member 61 and the discharge member 62 are, for example, tubular members.
- a pipe for supplying the medium to the heat exchanger 10 is connected to the introduction member 61 .
- a pipe for collecting the medium discharged from the heat exchanger 10 is connected to the discharge member 62 .
- FIG. 3 is a cross-sectional view showing the case where the heat exchanger 10 of FIG. 1 is cut along line AA.
- the base portion 20 is composed of one first film 40 and one second film 80 .
- the first film 40 includes an inner surface 41 and an outer surface 42 opposite the inner surface 41 .
- the second film 80 includes an inner surface 81 and an outer surface 82 opposite the inner surface 81 .
- the inner surface 81 of the second film 80 faces the inner surface 41 of the first film 40 .
- the base portion 20 includes a base outer edge joint 23 and a base section joint 24 . As shown in FIGS. 1 and 3, base outer edge joint 23 is located at the outer edge of base portion 20 .
- the base outer edge joining portion 23 joins the inner surface 41 of the first film 40 and the inner surface 81 of the second film 80 .
- the medium flows through the space surrounded by the first film 40 , the second film 80 and the base outer edge joint 23 .
- the base section joint 24 is located between the first base channel 21 and the second base channel 22 .
- the base section joint 24 joins the inner surface 41 of the first film 40 and the inner surface 81 of the second film 80 .
- the base partition joint 24 partitions the space inside the base portion 20 into the first base channel 21 and the second base channel 22 .
- a base non-joint portion 25 may be formed between the first base flow path 21 and the second base flow path 22 .
- the base non-bonded portion 25 is a portion where the inner surface 41 of the first film 40 and the inner surface 81 of the second film 80 are not bonded.
- the base non-joint portion 25 is surrounded by the base section joint portion 24 .
- a base reinforcing member 55 may be arranged in the base non-bonded portion 25 .
- the base reinforcing member 55 is a rod member for increasing the rigidity of the base portion 20. By attaching the base reinforcing member 55 to the base portion 20 , it is possible to suppress deformation such as bending and bending of the base portion 20 .
- the base reinforcing member 55 includes a member having higher rigidity than the first film 40 and the second film 80. As shown in FIG. For example, the thickness of the base reinforcing member 55 is greater than the thickness of the first film 40 and the thickness of the second film 80 .
- the base reinforcing member 55 may be made of resin such as polypropylene.
- the first heat exchange body 30 As shown in FIGS. 1 and 2, the plurality of first heat exchange bodies 30 are arranged in the first direction D1. Each first heat exchange body 30 extends in a second direction D2 intersecting the first direction D1. The second direction D2 may be orthogonal to the first direction D1. The first heat exchange body 30 is positioned between two battery cells 110 adjacent in the first direction D1.
- the first heat exchange body 30 includes a first flow path that circulates the medium in the second direction D2.
- the first flow path includes a first forward flow path 31 connected to the first base flow path 21 and a first return flow path 32 connected to the second base flow path 22 .
- FIG. 3 is a cross-sectional view showing the case where the heat exchanger 10 of FIG. 1 is cut along line BB.
- a plurality of first heat exchange bodies 30 are configured by one first film 40 .
- the first film 40 forming the plurality of first heat exchange bodies 30 is the same as the first film 40 of the base portion 20 . That is, one sheet of the first film 40 configures the plurality of first heat exchange bodies 30 and configures a part of the base portion 20 .
- the first heat exchange body 30 includes a front portion 30A, a back portion 30B, a first outer edge joint portion 33 and a first section joint portion 34.
- the front portion 30A and the back portion 30B are formed by folding the first film 40 at the folding portion 43 shown in FIG.
- the first outer edge joint portion 33 joins the inner surfaces 41 of the first film 40 along the outer edges of the front portion 30A and the back portion 30B.
- the first outer edge joint 33 is connected to the base outer edge joint 23 of the base portion 20 .
- the medium flows through a space surrounded by the first film 40 forming the front portion 30A, the first film 40 forming the back portion 30B, the folded portion 43, and the first outer edge joint portion 33.
- the first partition joint portion 34 extends from the base portion 20 toward the folded portion 43 in the second direction D2.
- First section joint 34 is connected to base section joint 24 of base portion 20 .
- the first section joint portion 34 joins the inner surface 41 of the first film 40 that constitutes the front portion 30A and the inner surface 41 of the first film 40 that constitutes the back portion 30B.
- the first division joint 34 divides the first flow path of the first heat exchange element 30 into the first forward flow path 31 and the first return flow path 32 .
- the first partition joint portion 34 is configured so as not to reach the folded portion 43 . Therefore, the first forward flow path 31 and the first return flow path 32 are connected in the vicinity of the folded portion 43 .
- a first non-joint portion 35 may be formed between the first forward flow path 31 and the first return flow path 32 .
- the first non-bonded portion 35 is a portion where the inner surface 41 of the first film 40 forming the front portion 30A and the inner surface 41 of the first film 40 forming the back portion 30B are not joined.
- the first non-joint portion 35 is surrounded by the first partition joint portion 34 .
- a first reinforcing member 51 may be arranged at the first non-joint portion 35 . The first reinforcing member 51 is inserted between the front portion 30A and the back portion 30B.
- the first reinforcing member 51 is a rod member for increasing the rigidity of the first heat exchange body 30. By attaching the first reinforcing member 51 to the first heat exchange body 30 , the first heat exchange body 30 can be prevented from being deformed such as bending or bending.
- the first reinforcing member 51 includes a member having higher rigidity than the first film 40, similar to the base reinforcing member 55. As shown in FIG. For example, the thickness of the first reinforcing member 51 is greater than the thickness of the first film 40 .
- the material of the first reinforcing member 51 may be the same as the material of the base reinforcing member 55 .
- the plurality of first reinforcing members 51 may be connected to the base reinforcing member 55.
- the heat exchanger 10 may comprise a reinforcing structure 50 including a base reinforcing member 55 and a plurality of first reinforcing members 51 connected to the base reinforcing member 55 .
- joints such as the base outer edge joint 23, the base section joint 24, the first outer edge joint 33, the first section joint 34, etc., as long as the inner surfaces of the opposing films can be joined together.
- the joints may be formed by melting the inner surfaces of the film by heating or the like and welding the inner surfaces together.
- the inner surface of the film is made of a heat-sealable resin such as a sealant layer.
- the joining portion may be formed by bonding the inner surfaces of the opposing films together using an adhesive or the like.
- FIG. 5 is a cross-sectional view of the power supply module 100 of FIG. 2 taken along line CC.
- FIG. 6 is a cross-sectional view of the power supply module 100 of FIG. 2 taken along line DD.
- the medium flow in the first base flow path 21 is also referred to as the first base flow F01.
- first forward flow paths 31 are connected to the first base flow path 21 . Therefore, the first base flow F01 is branched and flows into each first forward flow path 31 .
- the medium that has flowed into the first forward flow path 31 flows toward the folded portion 43 in the second direction D2.
- the medium flow in the first forward flow path 31 is also referred to as a first forward flow F1f.
- the first forward flow path 31 is connected to the first return flow path 32 in the vicinity of the folded portion 43 .
- the medium that has reached the vicinity of the folded portion 43 flows through the first circulation path 32 from the folded portion 43 toward the base portion 20 as shown in FIG.
- the medium flow in the first return path 32 is also referred to as first return flow F1r.
- the first heat exchange body 30 When the medium flows into the first heat exchange body 30 , the first heat exchange body 30 swells and comes into contact with the battery cells 110 . Therefore, the medium exchanges heat with the battery cells 110 while flowing through the first forward flow path 31 and the first return flow path 32 . Thereby, the battery cell 110 can be cooled. Since the first heat exchanger 30 is in contact with each battery cell 110, each battery cell 110 can be cooled more evenly.
- a plurality of first circulation channels 32 are connected to the second base channel 22 .
- the medium in each of the first return channels 32 flows into the second base channel 22 and merges. After that, the medium flows in the first direction D1 toward the outlet portion 28 .
- the medium flow in the second base flow path 22 is also referred to as a second base flow F02.
- the medium reaching the exit portion 28 is discharged from the discharge member 62 .
- one first film 40 is prepared. Subsequently, as shown in FIG. 8, a first folding step is performed in which a portion of the first film 40 is folded back at the folding portion 43 . As a result, the front portion 30A and the back portion 30B facing each other are formed in the first film 40 .
- a first bent portion 44 may be formed at the base of the front portion 30A.
- a second bent portion 45 may be formed at the base of the back portion 30B.
- a first joining step is performed to partially join the inner surface of the front portion 30A and the inner surface of the back portion 30B.
- the sealant layer forming the inner surface is partially melted.
- the first outer edge joint portion 33 and the first partition joint portion 34 are formed between the front portion 30A and the back portion 30B.
- the first heat exchange body 30 is formed.
- a method for melting the sealant layer is not particularly limited.
- the sealant layer may be melted by pressing a mold heated by a heater against the first film 40 .
- the sealant layer may be melted by partially irradiating the first film 40 with a laser.
- the first film 40 may include a metal layer in contact with the sealant layer.
- the metal layer contains, for example, aluminum. The sealant layer can be melted by the laser being reflected and diffused by the metal layer.
- the reinforcing structure 50 includes a base reinforcing member 55 extending in the first direction D1 and a plurality of first reinforcing members 51 arranged in the first direction D1 and connected to the base reinforcing member 55 . Subsequently, as shown in FIGS. 11 and 12 , the plurality of first reinforcing members 51 are inserted into the corresponding first non-joint portions 35 of the first heat exchanging body 30 .
- the introduction member 61 is joined to the first end of the first film 40 in the first direction D1.
- the discharge member 62 is joined to the second end of the first film 40 in the first direction D1.
- the second film 80 is overlaid on the portion of the first film 40 extending in the first direction D1.
- a base bonding step is performed to partially bond the inner surface of the first film 40 and the inner surface of the second film 80 .
- the sealant layer forming the inner surface is partially melted.
- the base outer edge joint portion 23 and the base section joint portion 24 are formed between the first film 40 and the second film 80 .
- Base section joint 24 is formed such that base reinforcing member 55 is surrounded by base section joint 24 .
- a heat exchanger 10 comprising a base portion 20 and a plurality of first heat exchange bodies 30 is manufactured.
- the heat exchanger 10 and the plurality of battery cells 110 are combined.
- the power supply module 100 shown in FIG. 2 is manufactured.
- the heat exchanger 10 is more efficient than the case where the first heat exchanging bodies 30 are made of metal. becomes lighter.
- a portion of the base portion 20 and the plurality of first heat exchange bodies 30 are composed of one sheet of the first film 40 . Therefore, the first forward flow path 31 of the first heat exchange body 30 is naturally connected to the first base flow path 21 of the base portion 20 . Similarly, the first return channel 32 of the first heat exchange body 30 is naturally connected to the second base channel 22 of the base portion 20 . Therefore, since parts such as joint pipes are not required, the number of parts constituting the heat exchanger 10 can be reduced. Moreover, since the process of attaching a joint pipe or the like becomes unnecessary, the process required for manufacturing the heat exchanger 10 can be reduced. Therefore, the manufacturing cost of the heat exchanger 10 can be reduced.
- the first heat exchange body 30 is composed of the first film 40, so that the first heat exchange body 30 can bend and swell. Therefore, it becomes easier to bring the first heat exchange body 30 into close contact with the battery cell 110 . Thereby, the efficiency of heat exchange can be improved. Moreover, even if there is an error in the dimensions or arrangement of the battery cells 110, the error can be absorbed by the deformation of the first heat exchange body 30. FIG. Thereby, the manufacturing cost of the power supply module 100 can be reduced.
- the state of the heat exchanger 10 when the power supply module 100 is not in use is arbitrary.
- the heat exchanger 10 may be stored or transported with the medium and air discharged from the heat exchanger 10 .
- the example in which the second film 80 forming the base portion 20 spreads flat is shown.
- the second film 80 spreads flat at the position where the first section joint 34 and the base section joint 24 are connected.
- the shape of the second film 80 forming the base portion 20 is not particularly limited.
- the second film 80 may also have a heat exchanger formed thereon in the same manner as the first film 40 .
- FIG. 16 is a perspective view showing the heat exchanger 10 according to this modified example.
- the heat exchanger 10 includes a plurality of second heat exchange bodies 70.
- the second heat exchange body 70 is composed of one second film 80, like the plurality of first heat exchange bodies 30.
- the second heat exchange body 70 is connected to the base portion 20 on the side opposite the first heat exchange body 30 .
- FIG. 17 is a perspective view showing a power supply module 100 including the heat exchanger 10 of FIG. 16 and a plurality of battery cells 110.
- FIG. The plurality of second heat exchange bodies 70 are arranged in the first direction D1. Each second heat exchange body 70 extends in the second direction D2. The second heat exchange body 70 is positioned between two battery cells 110 adjacent in the first direction D1.
- the second heat exchange body 70 includes a second flow path for circulating the medium in the second direction D2.
- the second flow path includes a second forward flow path 71 connected to the first base flow path 21 and a second return flow path 72 connected to the second base flow path 22 .
- the second heat exchange body 70 includes a front portion 70A, a back portion 70B, a second outer edge joint portion 73 and a second section joint portion 74.
- the front portion 70A and the back portion 70B are formed by folding the second film 80 at the folding portion 83 shown in FIG.
- the second outer edge joint portion 73 joins the inner surfaces of the second film 80 along the outer edges of the front portion 70A and the back portion 70B.
- the second outer edge joint 73 is connected to the base outer edge joint 23 of the base portion 20 .
- the medium flows through a space surrounded by the second film 80 forming the front portion 70A, the second film 80 forming the back portion 70B, the folded portion 83, and the second outer edge joint portion 73.
- the second dividing joint 74 divides the second flow path of the second heat exchange body 70 into a second forward flow path 71 and a second return flow path 72 .
- the second section joint portion 74 is configured so as not to reach the folded portion 83 . Therefore, the second forward flow path 71 and the second return flow path 72 are connected in the vicinity of the folded portion 83 .
- the second section joint 74 is connected to the base section joint 24 of the base portion 20 .
- a second non-joint portion 75 may be formed between the second forward flow path 71 and the second return flow path 72 .
- the second non-joint portion 75 is surrounded by the second partition joint portion 74 .
- a second reinforcing member may be arranged in the second non-joint portion 75 .
- the second reinforcing member like the first reinforcing member 51, is a bar member for increasing the rigidity of the second heat exchange body 70. As shown in FIG. As with the first reinforcing member 51 , multiple second reinforcing members may be connected to the base reinforcing member 55 .
- FIG. 18 is a cross-sectional view of the power supply module 100 of FIG. 17 taken along line EE.
- FIG. 19 is a cross-sectional view of the power supply module 100 of FIG. 17 taken along line FF. Since the operation of the first heat exchange body 30 is the same as that of the embodiment described above, the explanation is omitted.
- a plurality of first forward flow paths 31 and a plurality of second forward flow paths 71 are connected to the first base flow path 21 . Therefore, the first base flow F01 is branched and flows into each of the first forward flow paths 31 and each of the second forward flow paths 71 .
- the medium that has flowed into the second forward flow path 71 flows toward the folded portion 83 in the second direction D2.
- the medium flow in the second forward flow path 71 is also referred to as a second forward flow F2f.
- the second forward flow path 71 is connected to the second return flow path 72 in the vicinity of the folded portion 83 .
- the medium that has reached the vicinity of the folded portion 83 flows through the second return path 72 from the folded portion 83 toward the base portion 20 as shown in FIG.
- the medium flow in the second return path 72 is also referred to as a second return flow F2r.
- a plurality of first circulation paths 32 and a plurality of second circulation paths 72 are connected to the second base flow path 22 .
- the medium in each first circulation path 32 and the medium in each second circulation path 72 flow into the second base flow path 22 and join together. After that, the medium flows in the first direction D1 toward the outlet portion 28 .
- the medium reaching the exit portion 28 is discharged from the discharge member 62 .
- first heat exchange bodies 30 are formed on one sheet of first film 40 .
- second heat exchange bodies 70 are formed on one second film 80 .
- the reinforcing structure 50 includes a base reinforcing member 55 extending in the first direction D1, a plurality of first reinforcing members 51 connected to the base reinforcing member 55 arranged in the first direction D1, and a plurality of first reinforcing members 51 arranged in the first direction D1 and arranged in the first direction D1. and a plurality of second reinforcing members 52 connected to the base reinforcing member 55 on the side opposite the first reinforcing member 51 . Subsequently, each of the plurality of first reinforcing members 51 is inserted into the corresponding first non-joint portion 35 of the first heat exchange body 30 . Also, the plurality of second reinforcing members are inserted into the second non-joint portions 75 of the corresponding second heat exchanging bodies 70, respectively.
- the second film 80 extending in the first direction D1 is overlaid on the portion of the first film 40 extending in the first direction D1.
- a base bonding step is performed to partially bond the inner surface of the first film 40 and the inner surface of the second film 80 .
- the base outer edge joint portion 23 and the base section joint portion 24 are formed between the first film 40 and the second film 80 .
- the heat exchanger 10 comprising the base portion 20, the plurality of first heat exchange bodies 30 and the plurality of second heat exchange bodies 70 is manufactured.
- the heat exchanger 10 and the plurality of battery cells 110 are combined.
- the power supply module 100 shown in FIG. 17 is manufactured.
- the plurality of first heat exchange bodies 30 are composed of one sheet of the first film 40
- the plurality of second heat exchange bodies 70 are composed of one sheet of the second film 80
- the base portion 20 is composed of part of the first film 40 and part of the second film 80 . Therefore, the first forward flow path 31 of the first heat exchange body 30 is naturally connected to the first base flow path 21 of the base portion 20 .
- the first return channel 32 of the first heat exchange body 30 is naturally connected to the second base channel 22 of the base portion 20 .
- the second forward flow path 71 of the second heat exchange body 70 is naturally connected to the first base flow path 21 of the base portion 20 .
- the second return channel 72 of the second heat exchanging body 70 is naturally connected to the second base channel 22 of the base portion 20 . Therefore, since parts such as joint pipes are not required, the number of parts of the heat exchanger 10 can be reduced. Moreover, since the process of attaching a joint pipe or the like becomes unnecessary, the process required for manufacturing the heat exchanger 10 can be reduced. Therefore, the manufacturing cost of the heat exchanger 10 can be reduced. Also, by forming a plurality of second heat exchange bodies 70 on the second film 80, the number of battery cells 110 included in the power supply module 100 can be increased.
- FIG. 20 is a diagram showing an example of the spacer 90. As shown in FIG. Spacer 90 in FIG. 20 has a cross shape. For example, spacer 90 includes first portion 91 , second portion 92 , third portion 93 and fourth portion 94 extending outwardly from central portion 95 . A hole passing through the spacer 90 may be formed in the central portion 95 .
- the first portion 91 is connected to the first outer edge joint portion 33 of the first heat exchange body 30, for example.
- the second portion 92 is connected to the second outer edge joint portion 73 of the second heat exchanging body 70, for example.
- the third portion 93 is connected to, for example, the base outer edge joint portion 23 located upstream of the first portion 91 in the first direction D1.
- the fourth portion 94 is connected to, for example, the base outer edge joint portion 23 located downstream of the first portion 91 in the first direction D1.
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Abstract
Description
前記第1方向において媒体を流す第1ベース流路及び第2ベース流路を含むベース部分と、
前記ベース部分に接続され、2つの前記対象部材の間に位置し、前記第1方向に並ぶ複数の第1熱交換体であって、前記第1方向に交差する第2方向において前記媒体を循環させる第1流路を含む複数の第1熱交換体と、を備え、
前記第1熱交換体は、第1フィルムを折り返すことによって構成された表部及び裏部と、前記表部及び前記裏部の外縁に沿って前記第1フィルムの内面同士を接合する第1外縁接合部と、前記第1流路を、前記第1ベース流路に接続された第1順流路及び前記第2ベース流路に接続された第1還流路に区画するように前記第1フィルムの内面同士を接合する第1区画接合部と、を含み、
前記ベース部分は、前記第1フィルムを含む、熱交換器である。
例えば、加熱などによってフィルムの内面を溶融させ、内面同士を溶着させることによって、接合部を形成してもよい。この場合、フィルムの内面は、シーラント層などの、熱融着性を有する樹脂によって構成されている。
若しくは、対向するフィルムの内面同士を、接着剤などを用いて接着することによって、接合部を形成してもよい。
例えば、ヒータによって加熱された金型を第1フィルム40に押し当てることにより、シーラント層を溶融させてもよい。
例えば、第1フィルム40に部分的にレーザを照射することにより、シーラント層を溶融させてもよい。この場合、第1フィルム40は、シーラント層に接する金属層を含んでいてもよい。金属層は、例えばアルミニウムを含む。レーザが金属層によって反射及び拡散されることにより、シーラント層が溶融され得る。
上述の実施の形態においては、ベース部分20を構成する第2フィルム80が、平坦に広がっている例を示した。例えば、第1区画接合部34とベース区画接合部24とが接続されている位置で、第2フィルム80が平坦に広がっている例を示した。しかしながら、ベース部分20を構成する第2フィルム80の形状は特には限定されない。例えば、第2フィルム80にも、第1フィルム40と同様に熱交換体が形成されていてもよい。
3つ以上の接合部が交わる位置には、スペーサが挿入されていてもよい。図20は、スペーサ90の一例を示す図である。図20のスペーサ90は、十字形を有する。例えば、スペーサ90は、中心部95から外側に延びる第1部分91、第2部分92、第3部分93及び第4部分94を含む。中心部95には、スペーサ90を貫通する孔が形成されていてもよい。
20 ベース部分
21 第1ベース流路
22 第2ベース流路
23 ベース外縁接合部
24 ベース区画接合部
25 ベース非接合部
27 入口部
28 出口部
30 第1熱交換体
31 第1順流路
32 第1還流路
33 第1外縁接合部
34 第1区画接合部
35 第1非接合部
40 第1フィルム
43 折り返し部
50 補強構造体
51 第1補強部材
52 第2補強部材
55 ベース補強部材
61 導入部材
62 排出部材
70 第2熱交換体
71 第2順流路
72 第2還流路
73 第2外縁接合部
74 第2区画接合部
75 第2非接合部
80 第2フィルム
83 折り返し部
90 スペーサ
Claims (7)
- 第1方向に並ぶ複数の対象部材との間で熱交換を行う熱交換器であって、
前記第1方向において媒体を流す第1ベース流路及び第2ベース流路を含むベース部分と、
前記ベース部分に接続され、2つの前記対象部材の間に位置し、前記第1方向に並ぶ複数の第1熱交換体であって、前記第1方向に交差する第2方向において前記媒体を循環させる第1流路を含む複数の第1熱交換体と、を備え、
前記第1熱交換体は、第1フィルムを折り返すことによって構成された表部及び裏部と、前記表部及び前記裏部の外縁に沿って前記第1フィルムの内面同士を接合する第1外縁接合部と、前記第1流路を、前記第1ベース流路に接続された第1順流路及び前記第2ベース流路に接続された第1還流路に区画するように前記第1フィルムの内面同士を接合する第1区画接合部と、を含み、
前記ベース部分は、前記第1フィルムを含む、熱交換器。 - 前記ベース部分は、前記第1方向における第1端に位置し、前記第1ベース流路に前記媒体を供給する入口部と、前記第1方向において前記第1端の反対側に位置し、前記第2ベース流路から前記媒体を排出する出口部と、を含む、請求項1に記載の熱交換器。
- 前記第1熱交換体の前記表部と前記裏部の間に挿入され、前記第1区画接合部によって囲まれた第1補強部材を備える、請求項1又は2に記載の熱交換器。
- 前記第1ベース流路と前記第2ベース流路の間に位置するベース補強部材と、前記ベース補強部材に接続され、前記第1区画接合部によって囲まれた複数の前記第1補強部材と、を含む補強構造体を備える、請求項3に記載の熱交換器。
- 前記ベース部分は、前記第1フィルムの内面と向かい合う内面を含む第2フィルムと、前記第1ベース流路と前記第2ベース流路の間に位置し、前記第1フィルムの前記内面と前記第2フィルムの前記内面とを接合するベース区画接合部と、を含む、請求項1~4のいずれか一項に記載の熱交換器。
- 前記第2フィルムは、前記第1区画接合部と前記ベース区画接合部が接続されている位置で平坦に広がっている、請求項5に記載の熱交換器。
- 前記ベース部分に接続され、前記第1方向に並ぶ複数の第2熱交換体であって、前記第2方向において前記媒体を循環させる第2流路を含む複数の第2熱交換体を備え、
前記第2熱交換体は、第2フィルムを折り返すことによって構成された表部及び裏部と、前記表部及び前記裏部の外縁に沿って前記第2フィルムの内面同士を接合する第2外縁接合部と、前記第2流路を、前記第1ベース流路に接続された第2順流路及び前記第2ベース流路に接続された第2還流路に区画するように前記第2フィルムの内面同士を接合する第2区画接合部と、を含む、請求項5に記載の熱交換器。
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| CN202280075642.0A CN118235283A (zh) | 2022-01-28 | 2022-12-23 | 热交换器 |
| US18/726,773 US20250067518A1 (en) | 2022-01-28 | 2022-12-23 | Heat exchanger |
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| PCT/JP2022/047681 Ceased WO2023145348A1 (ja) | 2022-01-28 | 2022-12-23 | 熱交換器 |
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| JP2025147632A (ja) * | 2024-03-25 | 2025-10-07 | Zacros株式会社 | 熱交換装置及びバッテリーパック |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001237582A (ja) * | 1999-12-13 | 2001-08-31 | Matsushita Electric Ind Co Ltd | 放熱体およびこれを用いた冷却装置およびこの冷却装置を備えた電子機器 |
| JP2004207458A (ja) * | 2002-12-25 | 2004-07-22 | Sumitomo Electric Ind Ltd | 薄型流路形成体およびその製造方法 |
| JP2020047507A (ja) * | 2018-09-20 | 2020-03-26 | 信越ポリマー株式会社 | 放熱構造体およびそれを備えるバッテリー |
| JP2021027020A (ja) * | 2019-08-09 | 2021-02-22 | 昭和電工パッケージング株式会社 | 熱交換モジュールおよび熱交換装置 |
| JP2021114381A (ja) * | 2020-01-17 | 2021-08-05 | トヨタ自動車株式会社 | 蓄電装置冷却機構 |
-
2022
- 2022-01-28 JP JP2022012351A patent/JP7667752B2/ja active Active
- 2022-12-23 CN CN202280075642.0A patent/CN118235283A/zh active Pending
- 2022-12-23 WO PCT/JP2022/047681 patent/WO2023145348A1/ja not_active Ceased
- 2022-12-23 US US18/726,773 patent/US20250067518A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001237582A (ja) * | 1999-12-13 | 2001-08-31 | Matsushita Electric Ind Co Ltd | 放熱体およびこれを用いた冷却装置およびこの冷却装置を備えた電子機器 |
| JP2004207458A (ja) * | 2002-12-25 | 2004-07-22 | Sumitomo Electric Ind Ltd | 薄型流路形成体およびその製造方法 |
| JP2020047507A (ja) * | 2018-09-20 | 2020-03-26 | 信越ポリマー株式会社 | 放熱構造体およびそれを備えるバッテリー |
| JP2021027020A (ja) * | 2019-08-09 | 2021-02-22 | 昭和電工パッケージング株式会社 | 熱交換モジュールおよび熱交換装置 |
| JP2021114381A (ja) * | 2020-01-17 | 2021-08-05 | トヨタ自動車株式会社 | 蓄電装置冷却機構 |
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| JP7667752B2 (ja) | 2025-04-23 |
| US20250067518A1 (en) | 2025-02-27 |
| JP2023110740A (ja) | 2023-08-09 |
| CN118235283A (zh) | 2024-06-21 |
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