JP2018071833A - Heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat exchanger capable of exhibiting high heat storage performance by suitably securing adhesion between a sealing part for storing a heat storage material or a cold storage material and a cooling element.SOLUTION: A heat exchanger 10 has: a cooling element 11 in which heat radiation occurs on one heat radiation surface 11B by flowing a current and cooling occurs on the other heat absorption surface 11A; a cold storage material sealing part 12 having a cold storage material storage part 16 in which a cold storage material 18 for storing cold heat of the cooling element 11 is stored inside, provided by coming into contact with the heat absorption surface 11A of the cooling element 11, and cooled by the cooling element 11; a heat radiation plate 13 provided by coming into contact with the heat radiation surface 11B of the cooling element 11 on the opposite side from the cold storage material sealing part 12, and for heating the air flowing in the periphery based on the heat transmitted from the cooling element 11; and a bolt 19 functioning as an adhesion improving part for improving adhesion between the cold storage material sealing part 12 and the heat radiation plate 13.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a heat exchanger.

  Conventionally, heat is stored in a heat storage material using a refrigeration element or stored in a cold storage material, and the heat or cold stored in the heat storage material or the cold storage material is released to heat or cool the air flowing around An exchanger is known. Regarding such a heat exchanger, for example, Patent Document 1 describes a structure in which a cooling element is sandwiched between a heat radiating plate having cooling fins and a heat absorbing plate on which a cool storage body is placed.

Japanese Patent Laid-Open No. 2-25672

  In the heat exchanger described in Patent Document 1, the regenerator is one in which a regenerator material is housed inside a container formed of a thin vinyl sheet or the like, and is merely placed on a heat absorption plate, It was not installed with surface pressure applied. Therefore, the adhesiveness between the cold storage body and the cooling element via the heat absorption plate is low, and high cold storage performance cannot be exhibited.

  An object of this indication is to provide the heat exchanger which can exhibit high heat storage performance by ensuring the adhesion nature of the enclosing part which stores a heat storage material or a cold storage material, and a cold storage element suitably.

  The present disclosure relates to a heat exchanger (10, 10A, 20, 30), in which a heat-generating element (11) that generates heat on one surface (11B) and cools on the other surface (11A) by passing an electric current. ) And a storage part (16, 26) in which either one of the heat storage material for storing the heat of the cooling element or the cold storage material (18) for storing the cold energy of the cooling element is stored. And a sealing portion (12) provided in contact with any one surface of the cooling element and dissipated or cooled by the cooling element, and a surface of the cooling element opposite to the sealing portion. And a heat radiation part (13) that cools or heats the air flowing around based on the cold or heat transmitted from the cold element, and the adhesion that enhances the adhesion between the sealed part and the heat radiation part And improvement department (19, 31) That is a heat exchangers.

  With this configuration, the adhesion between the encapsulating part and the heat radiating part can be improved by improving the adhesion between the encapsulating part and the heat radiating part. As a result, the heat storage material can be improved. High heat storage performance can be exhibited by suitably ensuring the adhesiveness between the enclosing portion for housing the heat and the cooling element.

  According to the present disclosure, it is possible to provide a heat exchanger that can exhibit high heat storage performance by suitably securing the adhesion between the encapsulating portion that stores the heat storage material or the cold storage material and the cooling element.

FIG. 1 is a diagram illustrating a schematic configuration of a heat exchanger according to the first embodiment. FIG. 2 is a diagram illustrating a schematic configuration of a modified example of the first embodiment. FIG. 3 is a diagram illustrating a schematic configuration of a heat exchanger according to the second embodiment. FIG. 4 is an exploded view of the heat exchanger of FIG. FIG. 5 is a diagram illustrating a schematic configuration of a heat exchanger according to the third embodiment. FIG. 6 is an exploded view of the heat exchanger of FIG.

  Hereinafter, the present embodiment will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

  The “warm heat” used in the following description is generated by the heat radiating surface 11B of the cooling element 11 and is transmitted to the heating fin 14 and released to heat the air flowing around the heating fin 14. The heat that can be. In addition, “cooling heat” used in the following description is generated by the heat absorbing surface 11A of the cooling element 11, transmitted to the cooling fins 15 and discharged, thereby cooling the air flowing around the cooling fins 15. The heat that can be. The “heat storage performance” includes both the ability to store the above-mentioned warm heat in the heat storage material and the ability to store the above-mentioned cold energy in the cold storage material 18.

  Moreover, in the following description, the direction (vertical direction in FIG. 1) in which the regenerator material enclosing portion 12, the cooling element 11, and the heat radiating plate 13 are stacked is expressed as a “stacking direction”, and is orthogonal to the stacking direction. A direction in which the fins 14 for cooling and the fins 15 for cooling are arranged (the left-right direction in FIG. 1) is expressed as a “parallel direction”.

[First Embodiment]
A first embodiment will be described with reference to FIG. First, the configuration of the heat exchanger 10 according to the first embodiment will be described. As shown in FIG. 1, the heat exchanger 10 according to the first embodiment includes a cooling element 11, a regenerator material enclosing unit 12 (encapsulating unit), and a heat radiating plate 13 (thermal radiating unit).

  The cooling element 11 is an electronic element that utilizes the Peltier effect in which heat is radiated on one heat radiating surface 11B and heat is absorbed (cooled) on the other heat absorbing surface 11A by passing an electric current. In this embodiment, the heat absorption surface 11A of the cooling element 11 is directly attached in a surface contact state with the regenerator material enclosing portion 12, and the heat radiation surface 11B of the cooling element 11 is directly attached in a surface contact state with the heat dissipation plate 13. ing.

  The regenerator material enclosing unit 12 is attached to the heat absorption surface 11A of the cooling element 11 and is cooled by the cooling element 11 to transmit cold heat. The regenerator material enclosing unit 12 has a regenerator material accommodating unit 16 (accommodating unit) in which a regenerator material 18 for accumulating the cold heat of the cold element 11 is accommodated. A plurality of cooling fins 15 stand in parallel at predetermined intervals along the parallel direction on the surface opposite to the contact surface with the cooling element 11 (upper side in the stacking direction in FIG. 1). It is installed. Each of the cooling fins 15 is formed so as to extend along the stacking direction.

  The cold storage material 18 is a phase change material that changes phase between solid, gel, and liquid by diffusing or absorbing cold heat. Components of such a phase change material include components that have a relatively stable phase change temperature and change into a liquid phase at 20 ° C. to 60 ° C., for example, paraffin (melting point −12 to 44 ° C.), calcium chloride water Japanese hydrate (melting point 29.7 ° C.), sodium sulfate hydrate (melting point 32.4 ° C.), sodium thiosulfate hydrate (melting point 48 ° C.), sodium acetate hydrate (melting point 58 ° C.), etc. The component is appropriately selected from these components according to the heat holding temperature of the object to be cooled. For the purpose of finely adjusting the melting point of these components, an appropriate adjusting agent can be added to these components.

  The heat radiating plate 13 is attached to the heat radiating surface 11B of the cooling / heating element 11 and is heated by the cooling / heating element 11 to transmit the heat. On the heat radiating plate 13, a plurality of heating fins 14 are erected in parallel at predetermined intervals along the parallel direction on the surface opposite to the contact surface with the cooling element 11 (lower side in the stacking direction in FIG. 1). ing. Each of the heating fins 14 is formed so as to extend along the stacking direction.

  The cold storage material enclosing part 12, the heat radiating plate 13, the heating fins 14, and the cooling fins 15 are made of a heat conductive material such as aluminum, for example. Since the volume of the cold storage material 18 changes in accordance with the phase change, the internal capacity of the cold storage material accommodation unit 16 is set so that the cold storage material enclosure 12 does not break at the maximum volume.

  And especially in this embodiment, the cool storage material enclosure part 12, the cooling element 11, and the heat sink 13 are laminated | stacked in this order, and the cool storage material enclosure part by the some volt | bolt 19 (insertion member, fastening member). 12 and the heat sink 13 are fastened so as to keep the relative distance in the stacking direction constant. The bolt 19 is inserted from the side of the heating fin 14 of the heat radiating plate 13, penetrates the heat radiating plate 13 and the cooling element 11, and is inserted into a bolt hole 12 </ b> A (insertion hole) provided in the cold storage material enclosing portion 12. The cold storage material enclosure 12 is screwed together. Here, the “relative distance between the regenerator material enclosing part 12 and the heat sink 13” can also be expressed as a gap formed between the opposing surfaces of the regenerator material enclosing part 12 and the heat sink 13. Since the cooling element 11 is sandwiched in the gap, the cooling element 11, the regenerator material enclosing portion 12, and the radiator plate are adjusted by adjusting the relative distance, that is, by adjusting the fastening force and fastening position of the bolt 19. 13 can be adjusted.

  The internal space of the cool storage material accommodation portion 16 basically extends in the same direction as the extending direction of the heat absorbing surface 11A of the cooling element 11 (parallel direction in FIG. 1). Further, the internal space of the regenerator material accommodating portion 16 is formed so as to avoid a portion where the bolt 19 is inserted into the regenerator material enclosing portion 12 (that is, the bolt hole 12A). In the example of FIG. 1, bolt holes 12 </ b> A are provided at three locations, ie, the central portion and both ends in the parallel direction of the regenerator material enclosing portion 12. It is formed to be recessed.

  A plurality of columnar bodies 12 </ b> B are provided in the internal space of the regenerator material accommodation unit 16 so as to protrude from the surface of the regenerator material enclosing unit 12 facing the cooling element 11 to the internal space of the regenerator material accommodation unit 16. The plurality of columnar bodies 12B extend along the stacking direction, and are arranged in parallel at a predetermined interval along the parallel direction. Furthermore, a plurality of columnar bodies 12 </ b> C projecting from the cooling fin 15 side of the regenerator material enclosure 12 to the internal space of the regenerator material container 16 are provided in the internal space of the regenerator material container 16. The plurality of columnar bodies 12C extend along the stacking direction at the positions of the gaps of the plurality of columnar bodies 12B along the parallel direction. That is, the columnar body 12 </ b> B and the columnar body 12 </ b> C protrude into the internal space of the regenerator material accommodation unit 16 alternately along the parallel direction. The shape of the regenerator material accommodating portion 16 is a meandering shape formed in the gap between the columnar body 12B and the columnar body 12C when viewed from the paper surface direction of FIG. Such a shape of the internal space of the regenerator material accommodating portion 16 is referred to as a “columnar structure” in the present embodiment.

  Inner fins 17 are installed in the regenerator material accommodating portion 16 over the entire inner space along a meandering shape of a columnar structure.

  Next, the operation of the heat exchanger 10 according to the first embodiment will be described. When a current flows through the cooling element 11, heat is radiated on one heat radiating surface 11B, and heat is absorbed (cooled) on the other heat absorbing surface 11A. In this embodiment, since the heat absorption surface 11A is in contact with the cold storage material enclosing part 12, the cold generated on the heat absorption surface 11A of the cooling element 11 is transferred to the internal cold storage material via the good heat transfer cold storage material enclosure 12. It is transmitted to the regenerator material 18 accommodated in the accommodating part 16 and is regenerated in the regenerator material 18.

  The cooling fins 15 are cooled by the cold heat stored in the cold storage material 18 of the cold storage material accommodation unit 16. Then, heat exchange is performed between the air flowing through the gaps between the cooling fins 15 and the cooling fins 15, the air is cooled by the cold heat released from the cooling fins 15, and cold air is blown out.

  On the other hand, since the heat radiating surface 11B is in contact with the heat radiating plate 13 on the heat radiating surface 11B side of the cooling element 11, the heat generated on the heat radiating surface 11B of the cooling element 11 is transferred to the heating fin 14 via the heat radiating plate 13. Then, the heating fins 14 are heated. Then, heat exchange is performed between the air flowing through the gap between the heating fins 14 and the heating fins 14, and the air is heated by the warm heat released from the heating fins 14, and hot air is blown out. .

  Next, the effect of the heat exchanger 10 according to the first embodiment will be described. The heat exchanger 10 according to the first embodiment stores a cold element 11 in which heat is radiated on one heat radiating surface 11B and cooled on the other heat absorbing surface 11A by passing an electric current, and cold heat of the chilled element 11 is stored inside. A regenerator material accommodating part 16 for accommodating the regenerator material 18 for the regenerator material, a regenerator material enclosing part 12 provided in contact with the heat absorption surface 11A of the cooler element 11 and cooled by the cooler element 11 12 is provided in contact with the heat radiating surface 11B of the cooling element 11 on the opposite side to the heat radiating plate 11 to heat the air flowing around based on the heat transmitted from the chilling element 11, and the regenerator enclosing portion 12 and the heat radiating A bolt 19 that functions as an adhesion improving portion that improves adhesion with the plate 13 is provided. The bolt 19 is inserted into the regenerator material enclosing part 12 through the heat dissipating plate 13, and is screwed into the bolt hole 12 </ b> A of the regenerator material enclosing part 12, so that the heat sink 13 and the regenerator material encapsulating part 12 are relative to each other. Fasten to keep the distance constant.

  With this configuration, by increasing the adhesion between the regenerator material enclosing part 12 and the heat radiating plate 13, it is possible to improve the adhesion between the cooling element 11 sandwiched between them, the regenerator material enclosing part 12 and the heat radiating plate 13. it can. As a result, the heat exchanger 10 of the first embodiment can exhibit high heat storage performance by suitably ensuring the adhesion between the cold storage element enclosing portion 12 that houses the cold storage material 18 and the cooling element 11. Furthermore, in order to use the fastening of the bolt 19 as a specific means for enhancing the adhesion between the regenerator material enclosing portion 12 and the heat radiating plate 13, by adjusting the fastening force and fastening position of the bolt 19, The degree of adhesion between the material enclosing part 12 and the heat radiating plate 13 can be easily adjusted, and the heat storage performance can be easily adjusted.

  Moreover, in the heat exchanger 10 of 1st Embodiment, the cool storage material accommodating part 16 is formed avoiding the bolt hole 12A which is a part in which the volt | bolt 19 is inserted in the inside of the cool storage material enclosure part 12. FIG. By this structure, since arrangement | positioning of the cool storage material accommodating part 16 and the bolt hole 12A can be partially overlapped without connecting in series with the lamination direction, the area | region which fastens the cool storage material enclosure part 12 with the cooling element 11 and the heat sink 13 Can be sufficiently secured, and the thickening of the regenerator material enclosing portion 12 can be suppressed.

  Moreover, in the heat exchanger 10 of 1st Embodiment, the cool storage material accommodating part 16 is the inner pillar structure mentioned above. With this configuration, the amount of the regenerator material 18 accommodated in the regenerator material accommodation unit 16 can be reduced, and heat transfer performance can be improved.

  In addition, the heat exchanger 10 of the first embodiment includes an inner fin 17 inside the cold storage material accommodation unit 16. With this configuration, it is possible to improve the heat transferability inside the cold storage material accommodation unit 16 and to shorten the time required for cold storage.

[Modification]
A modification of the first embodiment will be described with reference to FIG. In the configuration of the first embodiment shown in FIG. 1, the structure in which the regenerator material enclosing part 12 and the cooling fins 15 are integrally formed is illustrated, but for example, as shown in FIG. The cooling fin 15 may be a separate body. In the heat exchanger 10A of FIG. 2, the heat absorption plate 15A is attached to the upper surface in the stacking direction of the regenerator material enclosing portion 12, and the cooling fins 15 are erected on the heat absorption plate 15A. The heat absorbing plate 15 </ b> A releases the cold heat stored in the cold storage material 18 of the cold storage material accommodation unit 16 to the outside and transmits it to the cooling fins 15.

  Even in the heat exchanger 10A having such a configuration, the heat sink 10 and the cold storage material enclosing portion 12 are fastened by the bolts 19 as in the heat exchanger 10 of the first embodiment. The same effect as the heat exchanger 10 can be obtained. Comparing the configuration of the heat exchanger 10A of the modification and the heat exchanger 10 of the first embodiment, in the heat exchanger 10 of the first embodiment, the upper surface in the stacking direction of the regenerator material enclosing portion 12 is shown in FIG. It can also be expressed as having the function of the endothermic plate 15A shown.

  Moreover, in said 1st Embodiment, although the structure which fastens the volt | bolt 19 was illustrated as an adhesive improvement part which improves the adhesiveness of the cool storage material enclosure part 12 and the heat sink 13, it penetrated the heat sink 13 and stored cold. Any other insertion member that can be inserted into the material enclosing portion 12 and can keep the relative distance between the heat radiation plate 13 and the cool storage material enclosing portion 12 constant can also be applied. Examples of such an insertion member include press-fitting parts such as rivets.

[Second Embodiment]
A second embodiment will be described with reference to FIGS. 3 and 4. As shown in FIG. 3, in the heat exchanger 20 according to the second embodiment, the bolt hole 12 </ b> A provided in the regenerator material enclosing part 12 is a communication hole 27 that communicates with the regenerator material accommodating part 26. The bolt 19 inserted into the heat exchanger 20 differs from the heat exchanger 20 of the first embodiment in that it also functions as a sealing member that seals the communication hole 27.

  In the assembly process of the heat exchanger 20 of the second embodiment, as shown in FIG. 4, first, the cold storage material 18 is filled into the cold storage material accommodation portion 26 from any one of the communication holes 27 of the cold storage material enclosure 12. At this time, due to the presence of the plurality of communication holes 27, the filling speed of the regenerator material 18 can be accelerated.

  And the cool storage element 11 and the heat sink 13 are laminated | stacked and arrange | positioned with respect to the cool storage material enclosure part 12 with which the cool storage material 18 was filled, the volt | bolt 19 penetrates the heat sink 13 and the cool element 11, and the cool storage material enclosure part 12 The cold storage material enclosing portion 12, the cooling element 11, and the heat radiating plate 13 are integrally fastened by screwing with a bolt hole 12A formed at the inlet of the communication hole 27. Further, when the bolt 19 is screwed into the bolt hole 12 </ b> A, the communication hole 27 is sealed, whereby the cool storage material 18 is sealed in the cool storage material accommodation portion 26.

  Thus, by making the bolt hole 12 </ b> A function as the communication hole 27 of the regenerator material accommodation portion 26 and the bolt 19 also function as a sealing member, the regenerator material 18 is accommodated and sealed inside the regenerator material accommodation portion 26. The function and the function of fastening the regenerator material enclosing part 12 to the cooling element 11 and the heat sink 13 can be made compatible by the bolt 19 and the bolt hole 12A. Thereby, a number of parts can be reduced, the structure of the cool storage material enclosure part 12 can be simplified, and cost can also be reduced.

  Note that not all of the plurality of bolt holes 12 </ b> A may be the communication holes 27, and at least one of the bolt holes 12 </ b> A may be the communication hole 27. However, when there are two or more communication holes 27, air can be released from another communication hole when the cool storage material 18 is injected from one place, so that the cool storage material 18 can be easily filled therein. Thereby, the enclosure property of the cool storage material 18 can be improved, and a man-hour reduction and cost reduction can be aimed at.

  Moreover, since the heat exchanger 20 of 2nd Embodiment also takes the structure which fastens the heat sink 13 and the cool storage material enclosure part 12 with the volt | bolt 19 similarly to the heat exchanger 10 of 1st Embodiment, 1st Embodiment The same effects as those of the heat exchanger 10 can be obtained.

  In the first and second embodiments described above, the regenerator material accommodating portions 16 and 26 are configured so as to avoid the bolt holes 12 </ b> A that are portions where the bolts 19 are inserted into the regenerator material enclosing portion 12. Although illustrated, it can also be set as the shape where the cool storage material accommodating parts 16 and 26 do not avoid the bolt hole 12A. In this case, the cool storage material accommodating portions 16 and 26 and the bolt holes 12A are arranged in series without overlapping in the stacking direction.

[Third Embodiment]
A third embodiment will be described with reference to FIGS. As shown in FIG. 5, the heat exchanger 30 according to the third embodiment includes a cooling element 11, a regenerator material enclosing unit 12, as an adhesion improving unit that increases the adhesion between the regenerator material enclosing unit 12 and the radiator plate 13. The heat of the first embodiment is provided in that the outer frame 31 is provided outside the heat sink 13 in a stacked state and keeps the relative distance of the cooling element 11, the regenerator material enclosing portion 12, and the heat sink 13 constant. Different from the exchanger 10.

  In the assembly process of the heat exchanger 30 of the third embodiment, as shown in FIG. 6, first, the regenerator material enclosing part 12, the cooling element 11, and the heat radiating plate 13 are stacked in this order to assemble the laminate 32. The laminated body 32 is housed inside the opening of the outer frame body 31. The inner diameter a in the stacking direction of the outer frame body 31 is preferably smaller than the dimension b in the stacking direction of the stack 32 in which the cooling element 11, the regenerator material enclosing portion 12, and the heat dissipation plate 13 are stacked. Thereby, in the state where the laminated body 32 is accommodated in the outer frame body 31, the regenerator material enclosing part 12 and the heat radiating plate 13 are always pressed from the outer frame body 31 in the laminating direction. The degree of adhesion between the plate 13 and the cooling element 11 sandwiched between them can be maintained in a high state.

  Thus, since the heat exchanger 30 of 3rd Embodiment can improve the adhesiveness of the cool storage material enclosure part 12 and the heat sink 13 similarly to 1st Embodiment by the outer frame 31, it is 1st implementation. The effect similar to the heat exchanger 10 of a form can be show | played.

  The present embodiment has been described above with reference to specific examples. However, the present disclosure is not limited to these specific examples. Those in which those skilled in the art appropriately modify the design of these specific examples are also included in the scope of the present disclosure as long as they have the features of the present disclosure. Each element included in each of the specific examples described above and their arrangement, conditions, shape, and the like are not limited to those illustrated, and can be changed as appropriate. Each element included in each of the specific examples described above can be appropriately combined as long as no technical contradiction occurs.

  The inner pillar structure of the regenerator material accommodation part 16 does not need to be arranged over the entire region in the parallel direction, and may be limited to a part. Moreover, it is good also considering the internal space of the cool storage material accommodating part 16 as shapes other than an inner pillar structure.

  Moreover, it is good also as a structure which does not provide the inner fin 17 in the inside of the cool storage material accommodating part 16. FIG.

  In the above-described embodiment, the cooling element 11 cools the regenerator material enclosing portion 12 and stores it in the internal regenerator material 18, and uses the cold energy of the cooler element 11 stored in the regenerator material 18 to surround the cooling fin 15. Although the structure which cools the air which flows through was illustrated, the structure which heats air contrary to this may be sufficient. In this case, the heat storage material is housed in the heat storage material enclosure (corresponding to the cold storage material enclosure 12 of the above embodiment) instead of the cold storage material 18. Further, the heat radiation surface 11B of the cooling element 11 is brought into contact with the cold storage material enclosing part, the cooling element 11 heats the cold storage material enclosing part, stores the internal heat storage material, and the heat of the cooling element 11 stored in the heat storage material. Is used to heat the air flowing around the heating fin (corresponding to the cooling fin 15 of the above embodiment). On the other hand, the endothermic surface 11A of the cooling element 11 is brought into contact with an endothermic plate (corresponding to the radiator plate 13 in the above embodiment), and the cooling heat generated on the endothermic surface 11A of the cooling element 11 is cooled by a cooling fin ( The air that is transmitted and corresponds to the heating fins 14 in the above embodiment is cooled. In this configuration, the adhesion improving portion such as the bolt 19 in the above embodiment functions to improve the adhesion between the heat storage material enclosing portion and the heat absorbing plate.

10, 10A, 20, 30: Heat exchanger 11: Cooling element 11A: Endothermic surface 11B: Heat radiation surface 12: Cold storage material enclosure (encapsulation part)
12A: Bolt hole (insertion hole)
13: Heat sink (heat radiation part)
16, 26: Cold storage material accommodation part (accommodation part)
18: Cold storage material 19: Bolt (adhesion improving part, fastening member, insertion member)
27: Communication hole 31: Outer frame (adhesion improving part)

Claims (9)

A heat exchanger (10, 10A, 20, 30),
A cooling element (11) in which heat is radiated on one surface (11B) and cooling is performed on the other surface (11A) by passing an electric current;
It has a storage part (16, 26) in which either one of the heat storage material for storing the heat of the cold element or the cold storage material (18) for storing the cold energy of the cold element is stored, An enclosure (12) provided in contact with one of the surfaces of the thermal element and radiated or cooled by the thermal element;
A heat radiating section (13) that is provided in contact with the surface of the cooling element opposite to the enclosing section and cools or heats the air flowing around based on the cooling or heating transmitted from the cooling element;
An adhesion improving section (19, 31) for increasing the adhesion between the encapsulating section and the thermal radiation section;
A heat exchanger. The adhesion improving portion is an insertion member (19) that penetrates the heat radiating portion and is inserted into the enclosing portion to keep a relative distance between the heat radiating portion and the enclosing portion constant.
The heat exchanger (10, 10A, 20) according to claim 1. The insertion member is inserted into the enclosing portion through the heat radiating portion, and is screwed into the enclosing portion so as to keep a relative distance between the heat radiating portion and the enclosing portion constant. A fastening member to be fastened,
The heat exchanger according to claim 2. The accommodating portion is formed to avoid a portion where the insertion member is inserted into the enclosure portion.
The heat exchanger according to claim 2 or 3. At least one of the insertion holes (12A) provided in the sealing part and into which the insertion member is inserted is a communication hole (27) communicating with the housing part (26),
The insertion member inserted into the communication hole also functions as a sealing member for sealing the communication hole.
The heat exchanger (20) according to any one of claims 2 to 4. A plurality of the insertion holes are the communication holes of the housing portion.
The heat exchanger according to claim 5. The adhesion improving unit is provided outside the stacked state of the cooling element, the enclosing unit, and the heat radiating unit, and maintains a constant relative distance between the cooling element, the enclosing unit, and the heat radiating unit. An outer frame (31),
The heat exchanger (30) according to claim 1. The accommodating portion has an inner pillar structure;
The heat exchanger (10, 10A, 20, 30) according to claim 1-7. Inner fins (17) are provided inside the housing part,
The heat exchanger according to any one of claims 1 to 8.

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