JP2016200324A - Heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat exchanger in which heat transfer between a medium and a heat transfer member is improved.SOLUTION: A heat exchanger 10 has a plurality of plates 11. The plates 11 have plate-shaped portions 12 and passage portions 13. Passages 21 for air are defined and formed between the plurality of plates 11. The passage portions 13 define and form passages 22 for refrigerants. The plates 11 have fabrics 15 composed of carbon-fiber made fibers 14. The fabrics 15 have first salient parts 15a which are salient to the passages 21. The first salient parts 15a promote heat transfer between air and the plates 11. The fabrics 15 have second salient parts 15b which are salient to the passages 22. The second salient parts 15b promote heat transfer between the refrigerants and the plates 11. The fibers 14 are continuously extended between the first salient parts 15a and the second salient parts 15b. By this constitution, heat transfer between the refrigerants and air is promoted.SELECTED DRAWING: Figure 4

Description

  The disclosure herein relates to a heat exchanger that provides heat exchange between two media.

  Patent Document 1 and Patent Document 2 disclose a heat exchanger having a heat transfer member that transfers heat by contacting a medium. The heat transfer member has a resin material and carbon fibers embedded in the resin material. The carbon fiber increases the mechanical strength of the heat transfer member and promotes heat transfer in the heat transfer member.

JP 2008-138968 A Utility Model Registration No. 3140963

  In the prior art, heat transfer between the medium and the heat transfer member on the surface of the heat transfer member is not improved. For this reason, there was a limit in promoting heat exchange between the two media. In view of the above, or other aspects not mentioned, there is a need for further improvements in heat exchangers.

  One disclosure aims to provide a heat exchanger with improved heat transfer between the medium and the heat transfer member on the surface of the heat transfer member.

  Another disclosure aims to provide a heat exchanger with improved heat transfer between the medium and the heat transfer member on the surface of the resin heat transfer medium.

  Still another object is to provide a heat exchanger that facilitates heat transfer between two media separated by a resinous heat transfer medium.

  A plurality of inventions disclosed in this specification employ the following technical means in order to achieve each object. In addition, the code | symbol in the bracket | parenthesis described in a claim and this clause shows the correspondence with the specific means as described in embodiment mentioned later as one aspect, Comprising: Technical scope is limited is not.

  One disclosure is a member that separates the first passage (21) through which the first medium flows and the second passage (22) through which the second medium flows, and is a heat formed by a material including a resin material. A heat exchanger (10) comprising a transmission member (11) is provided. The heat exchanger has a thermal conductivity higher than that of the resin material, and is at least partly embedded in the heat transfer member and protrudes from the heat transfer member to the first passage and / or the second passage (15a, 15b). Fin members (14, 15, 215, 315, 415, 515).

  According to this heat exchanger, the fin member having a higher thermal conductivity than the resin material is provided. At least a part of the fin member is embedded in the heat transfer member. On the other hand, the fin member has a protrusion that protrudes into the first passage and / or the second passage. The protrusion exchanges heat with the medium flowing in the first passage and / or the second passage. Therefore, the fin member promotes heat transfer between at least the medium and the heat transfer member. When the fin member protrudes into the first passage and the second passage, the fin member promotes heat transfer between the first medium and the second medium.

It is a top view of the heat exchanger which concerns on 1st Embodiment. It is a front view of a heat exchanger. It is a fragmentary sectional view of a heat exchanger. It is a partial cross section perspective view of a heat exchanger. It is a fragmentary perspective view which shows the preparation process of a manufacturing method. It is a fragmentary sectional view which shows the type | mold arrangement | positioning process of a manufacturing method. It is a fragmentary sectional view which shows the injection molding process of a manufacturing method. It is a fragmentary sectional view which shows the lamination process of a manufacturing method. It is a partial section perspective view of the heat exchanger concerning a 2nd embodiment. It is a fragmentary sectional view of the heat exchanger which concerns on 3rd Embodiment. It is a fragmentary sectional view of the heat exchanger which concerns on 4th Embodiment. It is a partial cross section perspective view of a heat exchanger. It is a fragmentary sectional view of the heat exchanger which concerns on 5th Embodiment.

  A plurality of embodiments will be described with reference to the drawings. In embodiments, functionally and / or structurally corresponding parts and / or associated parts may be assigned the same reference signs or reference signs that differ by more than a hundred. For the corresponding parts and / or associated parts, the description of other embodiments can be referred to.

(First embodiment)
In FIG. 1, a heat exchanger 10 provides heat exchange between two media. The heat exchanger 10 provides heat exchange between a first medium in a first passage formed therein and a second medium in a second passage outside the heat exchanger. The two media are often fluids. The medium is a liquid or a gas.

  In this embodiment, the heat exchanger 10 is a refrigerant evaporator that evaporates the refrigerant used in the refrigeration cycle. The refrigeration cycle is a refrigeration cycle for a vehicle air conditioner. In this case, the first medium is a low-temperature and low-pressure refrigerant provided by the refrigeration cycle. The second medium is air used for air conditioning in the passenger compartment.

  The heat exchanger 10 is a heat exchanger called a drone cup type or a plate lamination type. The heat exchanger 10 is manufactured by stacking a plurality of plates 11. A first passage through which the first medium flows and a second passage through which the second medium flows are partitioned between the plurality of plates 11. One plate 11 is a heat transfer member that partitions between the two media and provides heat transfer between the two media. A unit is configured by joining a set of plates 11 together. The heat exchanger 10 is manufactured by arranging a plurality of units in a stacked manner and joining the plurality of units. Between the pair of plates 11, a passage for the refrigerant that is the first medium is formed. A passage for air as the second medium is formed between the units.

  The plate 11 has a plate-like portion 12 and a passage portion 13. The plate-like portion 12 is a flat plate extending in parallel with the air flow direction AR. The plate-like portion 12 functions as a structure that defines the shape of the heat exchanger 10. The plate-like part 12 mainly functions as a fin part for exchanging heat with air. The plate-like part 12 may have a raised part, a rising edge part, etc. for maintaining the shape as the heat exchanger 10. The passage portion 13 protrudes toward the air passage. The passage portion 13 is a protrusion that protrudes toward the air passage so as to form a passage for the refrigerant. The passage portion 13 is recessed in a groove shape so as to form a passage for the refrigerant. The passage portion 13 extends in a predetermined shape on the plate 11. In the illustrated example, the passage portion 13 is arranged meandering on the plate 11. The passage portion 13 is formed to be curved while maintaining the thickness provided by the plate 11. The passage portion 13 forms a passage for the refrigerant between the pair of plates 11.

  The plate 11 is formed of fiber reinforced resin. The fiber reinforced resin includes a long fiber woven fabric, a long fiber arranged in a plate shape, or a short fiber dispersed in the resin. The fiber reinforced resin includes a resin impregnated in a large number of long fibers or a resin enclosing a large number of short fibers. The fiber reinforced resin can include both long fibers and short fibers.

  In this embodiment, the plate 11 has fibers 14. The fiber 14 is a carbon fiber. Carbon fiber has high mechanical strength and high thermal conductivity. The carbon fiber is a pitch-based carbon fiber having a high thermal conductivity. For example, the carbon fiber is provided by a yarn in which a plurality of single fibers having a diameter of about 7 μm are bundled. The fibers 14 are provided by arranging the thread-like carbon fibers in a predetermined shape.

  The fiber 14 is provided as a woven fabric 15 obtained by plain weaving long fibers. The fabric 15 spreads over a range indicated by a broken line in the drawing. The fabric 15 spreads continuously over the plate-like portion 12 and the passage portion 13. The fabric 15 extends over the entire heat exchanger 10 along the air flow direction AR. Furthermore, the fabric 15 extends over the main part of the air passage on the heat exchanger 10. The plate 11 is a composite material of carbon fiber and resin. The fabric 15 protrudes from the plate 11 at a part of the plate 11 and is exposed to the outside.

  The protruding portion of the fabric 15, i.e. the fiber 14, is in direct contact with at least one of the two media. The protruding portion of the fabric 15 provides a heat exchange part that directly exchanges heat with at least one of the two media. The fabric 15 is disposed so as to protrude from the plate-like portion 12 and / or the passage portion 13. The protrusion of the fabric 15 provides a surface element that defines the surface area of the heat exchanger 10. The protruding portion of the fabric 15 functions as a fin. The fabric 15 including the protruding portion is also called a fin member.

  The fabric 15 functions as a member that promotes heat transfer in the plate 11. The protruding portion of the fabric 15 functions as a fin member that promotes heat transfer between the medium and the plate 11. The fabric 15 and the protruding portion function as a fin member that promotes heat transfer between the two media.

  The plate 11 has tank portions 16 and 17. The tank portion 16 communicates with the inlet pipe 18. The tank portion 16 functions as a distribution tank that distributes the medium to the plurality of passage portions 13. The tank unit 17 communicates with the outlet pipe 19. The tank unit 17 functions as a collection tank that collects media from the plurality of passage portions 13.

  In FIG. 2, by laminating a plurality of plates 11, a passage 21 for air is defined between them. In the illustrated example, the passage 21 is not provided with an additional heat exchange member. Alternatively, an additional heat exchange member can be provided in the passage 21. For example, the passage 21 can be provided with corrugated fins for increasing the surface area with respect to air.

  FIG. 3 shows a III-III cross section of FIG. In the figure, a cross section of a set of plates 11 is shown. A passage 22 for the refrigerant is defined between the pair of plates 11. In this embodiment, the fabric 15 is formed into a corrugated plate shape.

  The fabric 15 is partially embedded in the plate 11 and extends along the plate 11 in the plate 11. The fabric 15 functions as a reinforcing material for increasing mechanical strength inside the plate 11.

  A part of the fabric 15 protrudes out of the plate 11 to provide protrusions 15a and 15b. The protrusions 15 a and 15 b are arranged so as to extend from the plate 11. The fabric 15 protrudes on both sides of the plate 11. Part of the projecting portions 15 a and 15 b extends from the plate-like portion 12. The other part of the protrusions 15 a and 15 b extends from the passage portion 13. The protrusions 15a and 15b can also be referred to as protrusions or fins.

  The fabric 15 has a first protrusion 15 a that protrudes toward one surface of the plate 11. The first projecting portion 15 a extends from the plate-like portion 12 toward the passage 21 or from the outer surface of the passage portion 13 toward the passage 21. The 1st protrusion part 15a protrudes in the channel | path 21 for air. The first protrusion 15 a exchanges heat with the air flowing through the passage 21. The 1st protrusion part 15a can also be called the heat exchange part by the side of an air.

  The fabric 15 has a second projecting portion 15 b that projects from the other surface of the plate 11. The second protrusion 15 b extends from the inner surface of the passage portion 13 into the passage 22. The 2nd protrusion part 15b protrudes in the channel | path 22 for a refrigerant | coolant. The second projecting portion 15 b exchanges heat with the refrigerant flowing through the passage 22. The 2nd protrusion part 15b can also be called the heat exchange part by the side of a refrigerant | coolant.

  The surface area provided by the plurality of first protrusions 15 a in the first passage 21 is greater than the surface area provided by the plurality of second protrusions 15 b in the second passage 22. The heat transfer area provided by the plurality of first protrusions 15a to the outside of the plate 11, that is, the air side is larger than the heat transfer area provided by the plurality of second protrusions 15b to the inside of the plate 11, that is, the refrigerant side. Such a shape contributes to improving the balance of heat transfer on the inside and outside of the plate 11 by promoting heat transfer on the air side.

  In FIG. 4, three sets of plates 11 arranged adjacent to each other are shown. In the figure, the range of the fabric 15 is shown by hatching. The several channel | path part 13 is arrange | positioned away along the air flow direction AR. A plate-like portion 12 is disposed on each side of the plurality of passage portions 13 provided by the set of plates 11. Therefore, the plate-like portions 12 located on both sides of one passage portion 13 function as fins. In two adjacent sets of plates 11, the plurality of passage portions 13 are arranged along the air flow direction AR so as not to overlap with each other in the adjacent direction, that is, the stacking direction perpendicular to the air flow direction AR. Has been. The arrangement of the plurality of passage portions 13 shown can be referred to as an alternating arrangement. The arrangement of the plurality of passage portions 13 urges air to meander and flow in the passage 21.

  The first protrusion 15 a provides a semi-cylindrical portion that protrudes from the outer surface of the plate 11. The first protrusion 15a is in direct contact with air. The 1st protrusion part 15a provides the ridgeline which cross | intersects the air flow direction AR. As a result, the first protrusion 15a increases the contact area with air. Moreover, from another viewpoint, the 1st protrusion part 15a suppresses the growth of the temperature boundary layer in air.

  The second protruding portion 15 b provides a semi-cylindrical portion that protrudes from the inner surface of the passage portion 13. The second protrusion 15b is in direct contact with the refrigerant. The 2nd protrusion part 15b provides the ridgeline extended in parallel with the flow direction of a refrigerant | coolant. As a result, the second protrusion 15b increases the contact area with the refrigerant.

  5 to 8 show a method for manufacturing the heat exchanger 10. FIG. 5 shows the preparation process of the manufacturing method of a heat exchanger. In the figure, a fabric 15 is shown. The fabric 15 can be previously formed into a corrugated plate shape. Therefore, the illustrated process can also be referred to as a preforming process for the fabric 15.

  FIG. 6 shows a mold arrangement process of the method for manufacturing the heat exchanger. In the heat exchanger manufacturing method, a separable mold is used. In the mold arrangement process, the fabric 15 is arranged in the mold. The mold has a first mold 31 and a second mold 32 that define the shape of the plate 11. Further, the mold has a third mold 33 for holding the fabric 15 in the cavity.

  The first mold 31 defines the outer surface of the plate 11, that is, the surface facing the passage 21. The second mold 32 defines the inner surface of the plate 11, that is, the surface facing the passage 22. The third mold 33 defines a part of the outer surface of the plate 11 and a part of the inner surface of the plate 11. The first mold 31, the second mold 32, and the third mold 33 define a cavity 34 corresponding to the shape of the plate 11. The third mold 33 has a first portion 33 a that is combined with the first mold 31. A portion of the fabric 15 corresponding to the first protrusion 15a is disposed between the first mold 31 and the first portion 33a. Thereby, the impregnation of the resin material to the 1st protrusion part 15a is suppressed. The third mold 33 has a second portion 33 b that is combined with the second mold 32. A portion of the fabric 15 corresponding to the second protrusion 15b is disposed between the second mold 32 and the second portion 33b. Thereby, the impregnation of the resin material into the 2nd protrusion part 15b is suppressed.

  FIG. 7 shows the injection molding process of the manufacturing method of the heat exchanger. In the injection molding process, the resin material 41 is injected into the cavity 34. Thereby, the shape of the plate 11 is shape | molded. The resin material 41 may not include short fibers, and may include short fibers. As the short fiber, a material having high thermal conductivity such as metal whisker, carbon fiber, or carbon nanotube can be used. As the short fiber, a material intended to improve mechanical strength, such as glass fiber or resin fiber, can be used. After the injection molding process, the plate 11 is taken out from the mold.

  FIG. 8 shows the lamination process of the manufacturing method of a heat exchanger. In the stacking process, a set of plates 11 are combined and joined. Thereby, the passage 22 is defined between the pair of plates 11. The manufacturing method of a heat exchanger can further include a step of laminating a plurality of sets and a step of joining the plurality of sets.

  Since the first protrusion 15 a is formed on the outer surface of the plate 11, the fabric 15 protrudes on the outer surface of the plate 11. Since the 1st protrusion part 15a contacts directly with air, it accelerates | stimulates the heat transfer between air and the fabric 15. Furthermore, since the fabric 15 is embedded in the plate 11, the first protrusion 15 a promotes heat transfer between the air and the plate 11.

  Since the second protrusion 15 b is formed on the inner surface of the plate 11, the fabric 15 protrudes on the inner surface of the plate 11. Since the 2nd protrusion part 15b contacts a refrigerant | coolant directly, the heat transfer between a refrigerant | coolant and the textile fabric 15 is accelerated | stimulated. Furthermore, since the fabric 15 is embedded in the plate 11, the second protrusion 15 b promotes heat transfer between the refrigerant and the plate 11.

  The first protrusion 15 a and the second protrusion 15 b are provided by a continuous fabric 15. As a result, high thermal conductivity is provided between the first protrusion 15a and the second protrusion 15b. Accordingly, heat transfer between the air and the refrigerant is promoted.

  When the amount of heat transfer between air as a gas and the plate 11 is compared with the amount of heat transfer between the refrigerant as a liquid and the plate 11 in many cases, the heat transfer between the air and the plate 11 is performed. The amount is small. Since the 1st protrusion part 15a accelerates | stimulates the heat transfer between air and the plate 11, it compensates the difference of the said heat transfer amount, and accelerates | stimulates the heat transfer between air and a refrigerant | coolant. In this embodiment, the surface area provided by the first protrusion 15a is greater than the surface area provided by the second protrusion 15b. This configuration facilitates heat transfer between the air and the refrigerant.

  It is desirable that the temperature of the pipe inner refrigerant inside the passage portion 13 is the same as the temperature of the pipe outer fin, that is, the first protrusion 15a. The heat transfer between the refrigerant and the air includes the inner surface of the passage portion 13 and the second protrusion 15b, the material (including resin and fiber) in the cross section of the plate 11, the outer surface of the plate 11 and the first protrusion 15a. Heat moves in sequence between the two. The thermal conductivity of these members and the thermal resistance of contact or bonding between the contacting members and at the joint determines the heat transfer between the refrigerant and the air. According to this embodiment, the temperature difference between the temperature of the refrigerant and the first protrusion 15a that is the outer fin is dominated by the thermal conductivity of the fibers 14 that are carbon fibers having high thermal conductivity. For this reason, a thermal resistance value is suppressed and the performance as the heat exchanger 10 improves. In addition, compared with a structure without fins, the surface area contributing to heat exchange is increased by the first protrusion 15a and the second protrusion 15b, so the performance is improved.

  In this embodiment, the first projecting portion 15a and the second projecting portion 15b are continuous by the fibers 14. Moreover, since the fibers 14 are carbon fibers, they have a much higher thermal conductivity than the resin material that is part of the composite material. As a result, the first protrusion 15a, the second protrusion 15b, and the fabric 15 therebetween provide a continuous fin that extends through the plate 11. According to this configuration, the surface area contributing to heat exchange can be increased. Moreover, the temperature difference between the air-side fins and the refrigerant-side fins is suppressed. Thereby, the expansion of the surface area that contributes to heat exchange can be used effectively, and the performance is improved. Furthermore, since the heat transfer coefficient on the air side is lower than the heat transfer coefficient on the refrigerant side, the amount of expansion of the surface area on the air side is made larger than the amount of increase of the surface area on the refrigerant side, so The balance of thermal resistance is improved and the performance is improved.

  In the passage portion 13, the fabric 15 is combined with a resin material. For this reason, material characteristics like carbon fiber reinforced resin (CFRP) are obtained, and the mechanical strength in the passage portion 13 is enhanced.

(Second Embodiment)
This embodiment is a modification based on the preceding embodiment. In the above embodiment, one fabric 15 is used for one plate 11. Instead, in this embodiment, a plurality of fabrics 214 are used for one plate 11.

  As illustrated in FIG. 9, the fabric 215 of the fibers 14 has an elongated ribbon shape. The plurality of fabrics 215 are arranged in a distributed manner along the length direction of the passage portion 13, that is, the refrigerant flow direction. The plurality of fabrics 215 are arranged away from each other along the direction intersecting the air flow direction AR.

  One fabric 215 provides a first protrusion 15a and a second protrusion 15b. In the air passage 21, a plurality of first protrusions 15a are arranged in a distributed manner. The plurality of first protrusions 15a are arranged away from each other along a direction intersecting the air flow direction AR. These 1st protrusion parts 15a suppress the growth of the temperature boundary layer in air.

  A plurality of second projecting portions 15 b are exposed and disposed in the refrigerant passage 22. The plurality of second projecting portions 15b are arranged away from each other along the flow direction of the refrigerant. These 2nd protrusion parts 15b suppress the growth of the temperature boundary layer in a refrigerant | coolant.

(Third embodiment)
This embodiment is a modification based on the preceding embodiment. In the said embodiment, the plate 11 has both the 1st protrusion part 15a and the 2nd protrusion part 15b. Instead of this, only one of the first protrusion 15a and the second protrusion 15b may be provided on the plate 11.

  In FIG. 10, the plate 11 has a fabric 315. The fabric 315 may be provided by a single fabric or a plurality of ribbon-like fabrics. The fabric 315 provides only the first protrusion 15a. According to this embodiment, the surface area for heat exchange on the air side is enlarged. As a result, heat transfer between the air and the plate 11 is promoted. Instead of the illustrated embodiment, the fabric 315 may provide only the second protrusion 15b.

(Fourth embodiment)
This embodiment is a modification based on the preceding embodiment. In the said embodiment, the 1st protrusion part 15a and / or the 2nd protrusion part 15b are provided by the continuous long fabrics 15,215,315. It may replace with this and may provide the 1st protrusion part 15a and / or the 2nd protrusion part 15b with many plate-shaped members.

  11 and 12, the plate 11 has a plurality of small pieces of fabric 415. The fabric 415 is disposed through the plate 11. The fabric 415 is provided by carbon fibers. The fabric 415 is arranged in the passage portion 13 so as to spread along the longitudinal direction of the passage portion 13, that is, the refrigerant flow direction. The fabric 415 is arranged so as to penetrate the passage portion 13 in the radial direction. The fabric 415 is disposed so as to penetrate the wall of the passage portion 13 at the shortest distance along the radial direction. The fabric 415 provides the first protrusion 15 a by protruding radially outward from the passage portion 13. The fabric 415 provides the second projecting portion 15 b by projecting radially inward from the passage portion 13. The plurality of fabrics 415 are arranged away from each other along the longitudinal direction of the passage portion 13. Also in this embodiment, the fabric 415 facilitates heat transfer between the air and the refrigerant.

(Fifth embodiment)
This embodiment is a modification based on the preceding embodiment. In the said embodiment, the 1st protrusion part 15a and / or the 2nd protrusion part 15b are provided by the flat fabric 415. FIG. Alternatively, the first protrusion 15a and / or the second protrusion 15b may be provided by a fabric 515 formed in a desired shape.

  In FIG. 13, the fabric 515 is bent in an L shape or a hem shape. The fabric 515 provides a first protrusion 15a and a second protrusion 15b. The fabric 515 is bent so that the first protrusion 15a and the second protrusion 15b protrude at a desired angle.

(Other embodiments)
The present disclosure is not limited to the illustrated embodiment, and various modifications can be made. The disclosure is not limited to the combinations shown in the embodiments, and can be implemented by various combinations. Embodiments can have additional parts. The portion of the embodiment may be omitted. The parts of the embodiments can be replaced or combined with the parts of the other embodiments. The structure, operation, and effect of the embodiment are merely examples. The technical scope disclosed is not limited to the description of the embodiments. Some technical scope disclosed is indicated by the description of the claims, and should be understood to include all modifications within the meaning and scope equivalent to the description of the claims. .

  In the above embodiment, a plain woven fabric 15 is used. Instead, a unidirectional tape in which the fibers 14 are aligned in a single direction may be used. The fabric 15 may be provided only by the fibers 14 or may be provided as a molded body in which the fibers 14 are impregnated with a resin.

  In the said embodiment, the fin member of the shape illustrated as the textiles 15, 215, 315, 415, 515 is provided with the carbon fiber. Instead of this, the fin member may be provided by a material having a higher thermal conductivity than the resin material for forming the plate 11. The shapes illustrated as the fabrics 15, 215, 315, 415, 515 can be provided by metal or carbon materials. For example, a thin plate made of aluminum alloy, a thin plate made of copper alloy, a plate obtained by resin-molding short carbon fibers into a plate shape, a plate made of a composite material of carbon nanotubes, and the like can be used. Further, in addition to the above embodiment, a fin member such as a thin plate made of aluminum alloy may be provided.

10 heat exchangers, 11 plates, 12 plate-like parts, 13 passage parts,
14 fibers, 15 fabrics, 15a first protrusion, 15b second protrusion,
16 tank parts, 17 tank parts, 18 inlet pipes, 19 outlet pipes,
21 air passage, 22 refrigerant passage,
31 1st type, 32 2nd type, 33 3rd type, 41 resin material,
215 woven fabric, 315 woven fabric, 415 woven fabric, 515 woven fabric,
AR Air flow direction.

Claims (10)

A member that separates the first passage (21) through which the first medium flows and the second passage (22) through which the second medium flows, and is a heat transfer member (11) formed of a material containing a resin material In a heat exchanger (10) comprising:
Projections (15a, 15b) having higher thermal conductivity than the resin material, at least partially embedded in the heat transfer member, and projecting from the heat transfer member to the first passage and / or the second passage A heat exchanger provided with fin members (14, 15, 215, 315, 415, 515).   The heat exchanger according to claim 1, wherein the fin member has a first projecting portion (15a) projecting into the first passage.   The heat exchanger according to claim 2, wherein the fin member further includes a second projecting portion (15b) projecting into the second passage.   The heat exchanger according to claim 3, wherein a surface area of the first protrusion in the first passage is larger than a surface area of the second protrusion in the second passage. The first medium is air;
The heat exchanger according to any one of claims 1 to 4, wherein the second medium is a refrigerant of a refrigeration cycle. The heat transfer member has a passage portion for defining the second passage;
The heat exchanger according to any one of claims 1 to 5, wherein the fin member extends through a wall of the passage portion.   The heat exchanger according to any one of claims 1 to 6, wherein the fin member includes carbon fiber (14).   The heat exchanger according to claim 7, wherein the fin member includes the carbon fiber fabric (15, 215, 315, 415, 515). The heat transfer member is formed of carbon fiber reinforced resin using the carbon fiber as a reinforcing member;
The said protrusion part is provided by arrange | positioning so that a part of said carbon fiber may protrude from the said heat transfer member to the said 1st channel | path and / or the said 2nd channel | path. Heat exchanger.   The heat exchanger according to any one of claims 1 to 9, wherein the fin member includes a metal plate.

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