JP2008078587A - Fin for heat exchange - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fin for heat exchange adapted to improve a heat-exchange efficiency without preparing a louver. <P>SOLUTION: The fin for heat exchange 10 is shaped in such a fashion that junction planes 11, which are heat-conductively joined with a heated body, and heat-exchanging sections 13, which exchange heat with air, are formed into a wave-like fold by folding, the fin 10 having the junction planes 11 arranged in a plurality of parallel trains aligned in the same direction with respect to a flow of the air, with the heat-exchanging sections 13, which are aligned in adjoining trains, disposed to intersect along the flow of air. This arrangement of the fin improves a heat-exchange efficiency. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a heat exchange fin in which a joining surface joined to a heat body so as to be able to conduct heat and a heat exchange part that exchanges heat with air are bent into a wave shape, and in particular, adjacent rows It relates to the shape of the heat exchanging part arranged in the.

  Conventionally, as this type of heat exchange fin, for example, as shown in Non-Patent Document 1, a corrugated fin in which a joining surface and a heat exchange part are continuously formed in a wave shape by bending is known. For this corrugated fin, as shown in FIGS. 8 and 9 (see page 125 of Non-Patent Document 1), as shown in FIGS. 8 and 9 (refer to page 125 of Non-Patent Document 1), a joining surface, a heat exchange part, a mountain part, There is a flat plate fin that is formed in an uneven shape by bending the heat exchange part and the joint surface in this order.

  For example, as shown in FIG. 11, the flat plate fin 100 has a concave portion as a joint surface 110, a convex portion as a ridge 120, and a surface extending in the vertical direction protruding outward from the joint surface 110 as a heat exchange portion 130. is there. The joining surface 110 is formed in a flat shape and joined to an outer member 150 of a heating element such as a PTC heater so that heat can be transferred.

And by flowing air outside the joint surface 110, the heat of the heating element is transferred to the heat exchange part 130 and the mountain part 120 via the joint surface 110, and is exchanged with the air flowing through this part. . Thereby, the heat of the heating element is dissipated between the heat exchanging unit 130 and the mountain portion 120.
Hiroshi Seshita, Masao Fujii, “Compact Heat Exchanger”, first edition, 1st edition, Nikkan Kogyo Shimbun, August 22, 1992, p. 125, Fig. 8 ・ 9

  However, as shown in FIG. 12, the flat plate fin 100 having the shape as described in Non-Patent Document 1 includes the joining surface 110, the crest 120, and the heat exchanging unit 130 in a plurality of rows and outer members 150 along the air flow. If it arrange | positions so that it may arrange in parallel, the flow of air will flow along the peak part 120 and the heat exchange part 130. FIG.

  According to the study by the inventors, when the air flow at this time is observed in detail, it has been found that there is a region where the air and the heat exchanging unit 130 are not subjected to heat exchange. In other words, it has been found that a region A in which heat is not exchanged between the air and the heat exchanging unit 130 is formed vertically between the heat exchanging units 130 adjacent to each other. Furthermore, it discovered that the area | region A was continuously formed also in the downstream of the air flow.

  In order to eliminate this area A, there is generally a method of providing a louver by processing such as cutting and raising in the heat exchanging section 130, but in this case, the cost of parts increases. In addition, there is a problem in that the surface of the treatment liquid is likely to be coated with a film.

  Therefore, an object of the present invention is to provide a heat exchange fin that can improve heat exchange efficiency without providing a louver.

In order to achieve the above object, the technical means described in claims 1 to 6 are employed. That is, in the invention according to claim 1, the heat exchange in which the joining surface (11) joined to the heat body so as to be able to conduct heat and the heat exchanging portion (13) exchanging heat with air are formed into a wave shape by bending. Fin (10) for use,
The fins (10) are arranged such that the joint surfaces (11) are arranged in parallel in a plurality of rows in the same direction with respect to the air flow, and the heat exchange sections (13) arranged in adjacent rows intersect along the air flow. It is characterized by being arranged.

  According to this invention, the area | region where heat is not exchanged between air and the heat exchange part (13) can be reduced by arrange | positioning so that the heat exchange part (13) adjacent to an air flow may cross | intersect. Thereby, the heat exchange efficiency can be improved.

  In the invention according to claim 2, the fin (10) has the joining surface (11) and the heat exchanging portion (13) formed of a thin plate, and the heat exchanging portion (13) is outside the joining surface (11). It is characterized by being formed in either an inclined shape or a curved shape. According to the present invention, when the fins (10) are arranged in parallel to the air flow, the heat exchange part (13) is arranged in a region where the conventional air and the heat exchange part (13) are not heat exchanged. Can do. Thereby, the area | region where air and the heat exchange part (13) are not heat-exchanged can be reduced.

  In the invention according to claim 3, the fin (10) is formed by bending the joining surface (11), the heat exchange part (13), the mountain part (12), and the heat exchange part (13) in this order, and the joining surface. (11) and the peak part (12) are formed in the same shape, and the joining surface (11) arrange | positioned at an adjacent row | line | column is inverted and arrange | positioned, It is characterized by the above-mentioned. According to this invention, it can comprise with a common fin (10) before and behind an air flow.

  In the invention according to claim 4, the heating element is a heating element, a high heating element, or a cooling element, and the joining surface (11) exchanges heat of any of the heating element, the high heating element, or the cooling element. It is characterized by being joined to the part (13) so as to be able to transfer heat.

  According to the present invention, for example, the present invention can be applied to a heat exchange fin of a cooling device that cools a heating element such as a PTC heater or a heat sink. The present invention can be applied to heat exchange fins of heat exchangers that radiate and absorb high-temperature or low-temperature heat medium.

  In the invention according to claim 5, the thermal body is a high temperature body or a cold body in which thermoelectric elements (32, 33) composed of P-type and N-type are alternately arranged and electrically connected, The joining surface (11) is characterized by being joined to the heat exchanging part (13) so that heat of either the high temperature body or the cold body can be transferred. According to the present invention, the present invention can be applied to a heat exchange fin of a thermoelectric conversion device having a Peltier effect.

  The invention according to claim 6 is characterized in that the peaks (12) arranged opposite to the joint surface (11) are arranged in parallel on the same straight line along the air flow. According to this invention, since the fins (10) adjacent to each other need to be electrically insulated, the fins of the thermoelectric conversion device are integrally formed with a plurality of fins (10), and the joining surface (11). After joining to the electrode member, the adjacent fins (10) can be separated by cutting the peak (12). Therefore, cutting can be easily performed if the peaks (12) are arranged on the same straight line.

  In addition, the code | symbol in the bracket | parenthesis of each said means shows a corresponding relationship with the specific means of embodiment mentioned later.

(First embodiment)
Hereinafter, a fin for a heat exchanger in a first embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a plan view showing the overall configuration of the cooling device in the present embodiment. FIG. 2 is a cross-sectional view taken along line AA shown in FIG. 3 is a cross-sectional view taken along line BB shown in FIG. In the present embodiment, the heat exchanger fin is applied to a cooling device that cools the heating element.

  The cooling device is a device that radiates heat from a heating element such as a PTC heater or a heat sink to the outside. As shown in FIGS. 1 to 3, a plurality of fins 10 are continuously formed in the order of a joining surface 11, a heat exchanging portion 13, a mountain portion 12, a heat exchanging portion 13, and a joining surface 11 using a thin flat plate. It is a corrugated fin formed in a corrugated shape by bending.

  The material is continuously formed in a predetermined shape (for example, uneven shape) by bending a roller or the like using a metal plate having high thermal conductivity such as aluminum or copper. Thereby, the joining surface 11, the heat exchange part 13, and the peak part 12 are formed in planar shape. Then, after the bending process, the two planes connecting the joint surface 11 and the peak portion 12 are formed in an inclined shape to form the heat exchange portion 13.

  In other words, by inclining the two planes of the heat exchanging portion 13 with respect to the joining surface 11, the adjacent peak portion 12 is disposed at an upper portion facing the joining surface 11. In other words, the heat exchanging portion 13, the mountain portion 12, and the convex portion connected to the heat exchanging portion 13 are formed in a substantially parallelogram shape, and the heat exchanging portion 13 is inclined to the right with respect to the joining surface 11 in the right direction and adjacent to the joining surface 11. It becomes connected to the mountain part 12 of.

  Therefore, the heat exchange part 13 is formed in the space above the joining surface 11 and the lower side of the adjacent peak part 12 by performing simple processing. Furthermore, the heat exchange part 13 and the peak part 12 are formed to extend outward with respect to the joint surface 11. Here, the flat surface connected to the heat exchanging portion 13, the mountain portion 12, and the heat exchanging portion 13 is a heat exchanging portion that exchanges heat with air.

  Furthermore, in the fin 10 formed in the shape as described above, the joint surface 11 that is a concave bottom portion and the peak portion 12 that is a convex top portion are formed in the same shape, and the joint surface 11 and the peak portion 12 are Is inverted in the up-down direction, the heat exchanging portion 13 can be arranged to be tilted to the left with respect to the joining surface 11 with respect to the vertical direction.

  Therefore, in the present embodiment, as shown in FIG. 1, the fins 10 are arranged in a plurality of rows on the outer member 20 of the heating element with respect to the air flow. Specifically, the joining surfaces 11 are arranged in parallel in a plurality of rows in the same direction with respect to the air flow, and the heat exchange units 13 arranged in adjacent rows of the air flow are arranged so as to intersect along the air flow. Has been.

  More specifically, for example, the fins 10 arranged in the first row from the lower side and the fins 10 arranged in the second row from the lower side next to the bonding surface 11 and the mountain portion 12 of one of the fins 10 May be reversed in the vertical direction and arranged in parallel in plural rows on the outer member 20 alternately.

  As a result, when the upstream side of the air flow is viewed, as shown in FIG. 2, the space where the air flows between the joint surface 11 and the mountain portion 12 flows along the air flow in the heat exchanging unit 13 adjacent to the front and rear of the air flow. Can intersect. Accordingly, it is possible to reduce a region where heat is not exchanged between the air and the heat exchange unit 13.

  Here, the joining surface 11 is joined to the outer member 20 by a joining material having high thermal conductivity such as solder or brazing material. Further, the fins 10 arranged in a plurality of rows cover the outside of the fin 10 with a case member (not shown) to form a ventilation passage, and heat is transferred from the heating element by circulating air through the ventilation passage. Can be dissipated on the surface connected to the heat exchanging portion 13, the mountain portion 12, and the heat exchanging portion 13.

  Next, the effect of the fin 10 by the above structure is demonstrated based on FIG. FIG. 4 is a characteristic diagram showing the relationship between the heat radiation amount and the air volume. When the inventors arrange a plurality of rows of flat fins 100 having the shape shown in FIG. 12 on the outer member 20 of the heating element, and when arranging the fins 10 having the shape according to the present embodiment on the outer member 20 of the heating element. It is the characteristic view which calculated | required the relationship between the heat dissipation of a cooling device, and the air volume by experiment.

  The symbol X shown in the figure is a characteristic of the relationship between the amount of heat radiation and the air volume when the flat plate fin 100 having the shape shown in FIG. 12 is arranged, and the symbol Y shown in the drawing arranges the fin 10 having the shape according to the present embodiment. The relationship between the amount of heat released and the air volume is a characteristic. According to this, it was found that the heat radiation amount of the fin 10 having the shape according to the present embodiment is improved by about 15% as compared with the flat plate fin 100 having the shape shown in FIG.

  When the air flow is observed in detail, in the case of the flat fin 100 having the shape shown in FIG. 12, there is a region where heat is not exchanged between the air and the heat exchange unit 130, but the heat exchange unit 13 is inclined. Thus, since the side ends of the heat exchanging units 13 adjacent to each other before and after the air flow are arranged in a cross shape, it is possible to reduce an area where the air and the heat exchanging unit 130 are not heat exchanged. Thereby, the heat exchange efficiency can be improved.

  According to the heat exchange fin according to the first embodiment described above, the fin 10 has the heat exchange portions 13 in which the joint surfaces 11 are arranged in parallel in a plurality of rows in the same direction with respect to the air flow and arranged in adjacent rows. By being arranged so as to intersect along the air flow, the heat exchange unit 13 is arranged in a crossing manner in the space between the joint surface 11 and the mountain portion 12, so that the air and the heat exchange unit 13 exchange heat. Can be reduced. Thereby, the heat exchange efficiency can be improved.

  Specifically, in the fin 10, the joining surface 11 and the heat exchanging portion 13 are formed of a flat plate, and the heat exchanging portion 13 extends outward from the joining surface 11 and is formed in an inclined shape. When the fins 10 are arranged in parallel with the air flow in a plurality of rows, the heat exchange unit 13 can be arranged in a region where the conventional air and the heat exchange unit 13 are not heat exchanged.

  More specifically, the fin 10 is formed by bending the joining surface 11, the heat exchange part 13, the mountain part 12, and the heat exchange part 13 in this order, and the joining surface 11 and the mountain part 12 are formed in the same shape. By arranging the joining surfaces 11 arranged in adjacent rows so as to be reversed, a plurality of rows can be arranged with one fin 10 having the same shape and can be used in common.

(Second Embodiment)
In the first embodiment described above, the fin 10 is continuously formed in an uneven shape in the order of the joint surface 11, the heat exchange portion 13, the mountain portion 12, the heat exchange portion 13, and the joint surface 11, and the joint surface 11 and the mountain portion 12. The heat exchange part 13 is formed by forming the two planes that are connected to each other in an inclined shape. However, the present invention is not limited to this, and the two planes that connect the joint surface 11 and the peak part 12 are substantially in the shape of a letter or a peak. You may form in the inclined form which consists of.

  Specifically, as shown in FIG. 5 and FIG. 6, two planes connecting the joint surface 11 and the mountain portion 12 are formed in a substantially square shape in which one slope and the other slope form a top part, or It is formed in an inclined shape consisting of a mountain shape. Here, the top portion is preferably formed at an intermediate height between the joint surface 11 and the peak portion 12.

  In this case, as in the first embodiment, a thin plate material is used to bend the rollers and the like in the order of the joining surface 11, the heat exchange unit 13, the mountain portion 12, the heat exchange unit 13, and the joining surface 11. Thus, it is continuously formed in an uneven shape. Then, after the bending process, the heat exchange part 13 is formed by forming two planes connecting the joint surface 11 and the peak part 12 into a substantially square shape or a sloped shape like a peak.

  Then, if the joining surface 11 and the peak portion 12 of either one of the fins 10 are inverted in the vertical direction and arranged in parallel to the outer member 20 in a plurality of rows in parallel with the air flow, as shown in FIG. The space where the air flows between the surface 11 and the mountain portion 12 can intersect along the air flow at the heat exchanging portion 13 adjacent to the front and rear of the air flow. Thereby, the area | region where air and the heat exchange part 13 are not heat-exchanged can be reduced.

(Third embodiment)
In the above embodiment, the shape of the heat exchanging portion 13 of the fin 10 is formed in an inclined shape. However, the shape is not limited to this, and two planes connecting the joint surface 11 and the mountain portion 12 are formed in a curved shape to perform heat exchange. The portion 13 may be formed.

  Specifically, as shown in FIG. 7 and FIG. 8, the fin 10 is a roller in the order of the joining surface 11, the heat exchange part 13, the mountain part 12, the heat exchange part 13, and the joining surface 11 using a thin plate material. It is continuously formed into a concavo-convex shape by bending such as. Then, after the bending process, the two flat surfaces connecting the joint surface 11 and the mountain portion 12 are formed into a curved shape to form the heat exchange portion 13.

  Then, if the joining surface 11 and the peak portion 12 of either one of the fins 10 are inverted in the vertical direction and arranged in parallel to the outer member 20 alternately in a plurality of rows with respect to the air flow, as shown in FIG. The space where the air flows between the surface 11 and the mountain portion 12 can intersect along the air flow at the heat exchanging portion 13 adjacent to the front and rear of the air flow. Thereby, the area | region where air and the heat exchange part 13 are not heat-exchanged can be reduced.

(Fourth embodiment)
In the above embodiment, the fin 10 is applied to the cooling device that cools the heating element. However, the present invention is not limited to this, and cooling heat that is electrically directly connected by alternately arranging P-type and N-type thermoelectric elements. The fin 10 may be applied to the thermoelectric conversion device in order to absorb or dissipate heat of the electrode portion on the side or the electrode portion on the high heat side.

  First, the thermoelectric conversion device according to the present embodiment is, for example, a seat in which a thermoelectric conversion device is disposed in each of a seat portion and a backrest portion of a vehicle seat, and the cold air cooled by the thermoelectric conversion device is blown from the seat surface. Used in air conditioners.

  As shown in FIGS. 9 and 10, the specific configuration includes a P-type thermoelectric element 32, an N-type thermoelectric element 33, an electrode member 20, and a fin 10. More specifically, a pair of P-type thermoelectric elements 32 and N-type thermoelectric elements 33 are provided on a first holding plate 31 made of a flat insulating material (for example, glass epoxy, PPS resin, LCP resin, or PET resin). A plurality of thermoelectric element groups are alternately arranged in a substantially grid pattern, and the electrode members 20 are joined to both end faces of a pair of adjacent thermoelectric elements 32 and 33 so as to be integrated.

  The P-type thermoelectric element 32 is composed of a P-type semiconductor made of a Bi—Te-based compound, and the N-type thermoelectric element 33 is a minimal component composed of an N-type semiconductor composed of a Bi—Te-based compound. The P-type thermoelectric element 32 and the N-type thermoelectric element 33 are formed so that the upper end surface and the lower end surface protrude beyond the first holding plate 31.

  The electrode member 20 is formed of a conductive metal such as a flat copper material, and includes a pair of adjacent P-type thermoelectric elements 32 and N-type thermoelectric elements 33 among the thermoelectric element groups arranged on the first holding plate 31. The electrodes are electrically connected in series.

  The electrode member 20 disposed above is an electrode for allowing a current to flow from the adjacent N-type thermoelectric element 33 toward the P-type thermoelectric element 32, and the electrode member 20 disposed below is adjacent to the P-type thermoelectric element. This is an electrode for flowing current from the element 32 to the N-type thermoelectric element 33. The electrode member 30 is bonded by soldering after applying paste solder or the like thinly and uniformly on the end faces of the thermoelectric elements 32 and 33 in advance by screen printing.

  At both ends of the thermoelectric elements 32 and 33, a positive side terminal of a DC power source and a negative side terminal of a DC power source (not shown) are provided. For example, the DC power input from the positive terminal flows in series from the leftmost N-type thermoelectric element 33 shown in FIG. 1 to the adjacent P-type thermoelectric element 32 through the electrode member 20 disposed above. Next, the P-type thermoelectric element 32 flows in series to the N-type thermoelectric element 33 through the electrode member 20 disposed below.

  At this time, the electrode member 20 disposed below the PN junction portion is in a high temperature state due to the Peltier effect, and the electrode member 20 disposed above the NP junction portion is in a low temperature state. . That is, the electrode member 20 disposed on the upper side is a cold body and generates heat in a low temperature state. Further, the electrode member 20 disposed on the lower side is a high-temperature body, and heat in a high temperature state is generated.

  Therefore, in the present embodiment, the fin 10 is provided at a site corresponding to the electric heating member 20. As described above, first, the fin 10 is formed into a concavo-convex shape by bending a roller or the like in the order of the joining surface 11, the heat exchange portion 13, the mountain portion 12, the heat exchange portion 13, and the joining surface 11, using a thin plate material. The shape is continuously formed. Then, after the bending process, the two planes connecting the joint surface 11 and the peak portion 12 are formed in an inclined shape to form the heat exchange portion 13.

  And as shown in FIG. 9, it is comprised so that the fin 10 may be arrange | positioned with respect to the air flow in the electrode member 20 arrange | positioned at the 1st holding plate 31 in multiple rows. Specifically, the joining surfaces 11 are arranged in parallel in a plurality of rows in the same direction with respect to the air flow, and the heat exchange units 13 arranged in adjacent rows of the air flow are arranged so as to intersect along the air flow. Has been.

  More specifically, for example, the fins 10 arranged in the first row from the right side and the fins 10 arranged in the second row from the left side adjacent thereto are the joint surface 11 and the peak portion of either one of the fins 10. 12 are reversed in the vertical direction and arranged in parallel in plural rows on the outer member 20 alternately.

  As a result, when the upstream side of the air flow is viewed, as shown in FIG. 10, the space in which the air flows between the joint surface 11 and the mountain portion 12 flows along the air flow in the heat exchange unit 13 adjacent to the front and rear of the air flow. Can intersect. Accordingly, it is possible to reduce a region where heat is not exchanged between the air and the heat exchange unit 13.

  By the way, since the joining surface 11 is configured to be joined directly to the electrode member 20, the fins 10 continuously formed in a wave shape need to be electrically insulated in the column direction. Therefore, in the present embodiment, the joining surfaces 11 are arranged in parallel in a plurality of rows in the same direction with respect to the air flow, so that a plurality of rows are arranged in parallel on the same straight line with respect to the air flow in the mountain portion 12. .

  Therefore, by forming the cutting part 12a in the peak part 12 arranged on the same straight line, the mutually adjacent joining surface 11 and the heat exchange part 13 can be electrically insulated. Here, more specifically, the cutting portion 12a is collinear with respect to the air flow using, for example, a cutting jig such as a knife after each joining surface 11 is joined to each electrode member 20. It is sufficient to move the cutting jig. According to this, the some cutting part 12a can be formed easily.

  Here, the fin 10 disposed at the upper side forms an endothermic heat exchanging portion, and heat in a low temperature state is transferred from the electrode member 20 to exchange heat with air, and the fin 10 disposed at the lower side exchanges heat by heat dissipation. The heat in the high temperature state is formed from the electrode member 20 and exchanges heat with air.

  Then, with the first holding plate 31 as a partition wall, an air passage is formed so as to cover the fin 10 with a case member (not shown), and air is circulated through the air passage, whereby the heat exchange unit 13 and the mountain portion 12 and the air And heat exchange. The air can be cooled by the upper fin 10 and the air can be heated by the lower fin 10.

  Reference numeral 35 shown in the drawing is a second holding plate for holding the plurality of fins 10. The second holding plate 35 is made of a flat insulating material (for example, glass epoxy, PPS resin, LCP resin, or PET resin). The fin 10 is configured integrally with a joint surface 11 disposed in a mounting hole (not shown) formed in the second holding plate 35.

  Accordingly, the electrode member 20 and the bonding surface 11 are bonded together by superimposing the bonding surfaces 11 disposed on the second holding plate 35 on the respective electrode members 20 disposed on the first holding plate 31. can do. In the present embodiment, the cutting portion 12a is formed after the electrode member 20 and the bonding surface 11 are bonded. However, the present invention is not limited to this, and the cutting is performed when the fins 10 are arranged in a plurality of rows on the second holding plate 35. The portion 12a may be formed.

  According to the above configuration, the ridges 12 arranged opposite to the joint surface 11 are arranged in parallel on the same straight line along the air flow, so that the fins 10 applied to the thermoelectric converter are adjacent to each other. Since the fins 10 of the first and second fins need to be electrically insulated, the plurality of fins 10 are integrally formed, the joint surface 11 is coupled to the electrode member 20, and then the ridges 12 are cut so that the adjacent fins are adjacent to each other. 10 can be separated. Therefore, cutting can be easily performed if the peaks 12 are arranged on the same straight line.

(Other embodiments)
In the above embodiment, the heat exchanging fins are arranged on the cold side in which the cooling device for cooling the heating element and the thermoelectric elements 31 and 32 composed of P-type and N-type are alternately arranged and electrically connected directly. Although it was applied to the thermoelectric conversion device in order to absorb or dissipate heat of the electrode member 20 or the electrode member 20 on the high heat side, the heat of the heat exchanger that dissipates and absorbs heat of a high or low temperature heat medium is not limited thereto. Applicable to replacement fins.

  Further, in the above embodiment, the fin 10 is formed into a wave shape by bending a plurality of the joining surfaces 11, the heat exchanging portions 13, the peaks 12, the heat exchanging portions 13, and the joining surfaces 11 in this order. The unit is not limited to this, and may be formed as a single unit in the order of the joining surface 11, the heat exchange part 13, the mountain part 12, and the heat exchange part 13.

  In the above embodiment, the joint surface 11 and the mountain portion 12 are formed in the same shape and used in common. However, the present invention is not limited to this.

It is a top view which shows the whole structure of the cooling device in 1st Embodiment of this invention. It is AA sectional drawing shown in FIG. It is BB sectional drawing shown in FIG. It is a characteristic view which shows the relationship between the thermal radiation amount and air volume in 1st Embodiment of this invention. It is a longitudinal cross-sectional view which shows the whole structure of the cooling device in 2nd Embodiment of this invention. It is a longitudinal cross-sectional view which shows the shape of the fin 10 in 2nd Embodiment of this invention. It is a longitudinal cross-sectional view which shows the whole structure of the cooling device in 3rd Embodiment of this invention. It is a longitudinal cross-sectional view which shows the shape of the fin 10 in 3rd Embodiment of this invention. It is a side view which shows the whole structure of the thermoelectric conversion apparatus in 4th Embodiment of this invention. FIG. 10 is a partial cross-sectional view taken along line AA shown in FIG. 9. It is a longitudinal cross-sectional view which shows the whole structure of the cooling device in a prior art. It is a top view which shows the arrangement | sequence form of the fin in a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Fin 11 ... Joining surface 12 ... Mountain part 13 ... Heat exchange part 32 ... P-type thermoelectric element, thermoelectric element 33 ... N-type thermoelectric element, thermoelectric element

Claims (6)

A heat exchange fin (10) in which a joining surface (11) joined to a heat body so as to be capable of heat transfer and a heat exchanging portion (13) for exchanging heat with air are formed into a wave shape by bending,
In the fin (10), the joining surfaces (11) are arranged in parallel in a plurality of rows in the same direction with respect to the air flow, and the heat exchanging portions (13) arranged in adjacent rows intersect along the air flow. A fin for heat exchange, which is arranged to be   In the fin (10), the joining surface (11) and the heat exchanging part (13) are formed of a thin plate, and the heat exchanging part (13) extends outward from the joining face (11). The heat exchange fin according to claim 1, wherein the fin is formed in an inclined shape or a curved shape.   The fin (10) is formed by bending the joining surface (11), the heat exchange part (13), the peak part (12), and the heat exchange part (13) in this order, and the joining surface (11) The heat according to claim 1 or 2, wherein the ridges (12) are formed in the same shape and the joint surfaces (11) arranged in adjacent rows are reversed. Replacement fin. The heating element is a heating element, a high heating element, or a cooling element,
The said joining surface (11) is joined to the said heat exchange part (13) so that heat of any of a heat generating body, a high temperature body, or a cold body can be heat-transferred. The fin for heat exchange as described in any one of 3. The heat body is a high heat body or a cold body in which thermoelectric elements (32, 33) composed of P-type and N-type are alternately arranged and electrically connected,
The said joining surface (11) is joined to the said heat exchanging part (13) so that heat of either a high heat body or a cold body may be heat-transferred, Any of Claim 1 thru | or 3 characterized by the above-mentioned. The heat exchange fin according to claim 1.   6. The fin for heat exchange according to claim 5, wherein the ridges (12) arranged to face the joint surface (11) are arranged in parallel on the same straight line along the air flow.

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