JP2008021931A - Thermoelectric conversion device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thermoelectric conversion device capable of preventing a thermoelectric element from being soaked. <P>SOLUTION: The thermoelectric conversion device has thermoelectric elements 12 and 13 including a p-type thermoelectric element 12 and an n-type thermoelectric element 13, heat exchanging members 22 and 32 provided to exchange heat between the thermoelectric elements 12 and 13 and air, and a filmy sealing member 14 which is disposed between the thermoelectric elements 12 and 13 and heat exchanging members 22 and 32 and has an opening hole 14c bored. The thermoelectric elements 12 and 13 are bonded to the heat exchanging members 22 and 32 with solder 16 provided in the opening hole 14c, the heat exchanging members 22 and 32 have parts disposed opposite to an outer periphery of the opening hole 14c of the sealing member 14, and the heat exchanging members 22 and 32 and sealing member 14 are fixed at the parts. Consequently, the thermoelectric elements can be prevented from being soaked. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a thermoelectric conversion device that can absorb heat and dissipate heat by passing a direct current through a series circuit composed of an N-type thermoelectric element and a P-type thermoelectric element, and condensation that adheres to a heat exchange member to the thermoelectric element. It relates to the prevention of water inundation.

  Conventionally, as this type of thermoelectric conversion device, for example, as in Patent Document 1, a plurality of thermoelectric elements including an N-type thermoelectric element and a P-type thermoelectric element are arranged in a planar shape, and one end surface of each thermoelectric element absorbs heat. 2. Description of the Related Art An apparatus is known in which a side heat exchange member is provided and a heat radiation side heat exchange member is provided on the other end surface so that each electrode portion is electrically connected in series between adjacent thermoelectric elements.

In the apparatus, each heat exchange member is provided on a partition plate that partitions a thermoelectric element accommodation chamber accommodating a plurality of thermoelectric elements and a heat exchange portion accommodation chamber accommodating a plurality of heat exchange members. This heat exchange member has a U-shaped cross section, and is formed of a planar electrode portion and a pair of both leg portions extending at right angles to the electrode portion from both ends of the electrode portion, and the electrode portion is a thermoelectric element. These leg portions are provided so as to penetrate through holes formed in the partition plate so as to face the end surface of the partition plate.
JP-A-5-175556

  However, for example, when the heat exchange unit accommodation chamber is energized so as to be on the heat absorption side upward and on the heat radiation side below, condensed water is generated by the heat exchange member on the heat absorption side. In Patent Document 1, since the through hole of the partition plate is not hermetically sealed with the heat exchange member, condensed water generated in the heat exchange member on the heat absorption side passes through the through hole and leaks to the thermoelectric element accommodation chamber side. Sometimes. Thereby, there exists a problem which causes migration because condensed water infiltrates into a thermoelectric element.

  Then, the objective of this invention is providing the thermoelectric conversion apparatus which can prevent the water immersion to a thermoelectric element.

In order to achieve the above object, the technical means described in claims 1 to 12 are employed. That is, the invention according to claim 1 is a thermoelectric conversion device that cools or heats air by exchanging heat with air that is disposed in the air passage and flows in the air passage,
Thermoelectric elements (12, 13) including a P-type thermoelectric element (12) and an N-type thermoelectric element (13), and heat exchanging members (22, 13) provided to be able to exchange heat with the thermoelectric elements (12, 13) and air 32) and a film-shaped sealing member (14) having an opening hole (14c) disposed between the thermoelectric element (12, 13) and the heat exchange member (22, 32). And
The thermoelectric elements (12, 13) and the heat exchange members (22, 32) are bonded to each other by the conductive adhesive (16) provided in the opening hole (14c), and are attached to the heat exchange members (22, 32). A portion of the sealing member (14) is formed so as to be opposed to the outer peripheral portion of the opening hole (14c), and the heat exchange member (22, 32) and the sealing member (14) are fixed to each other at this portion. It is characterized by being.

  According to the present invention, the heat exchange member (22, 32) on the heat absorption side is generated by fixing the outer peripheral portion of the opening hole (14c) and the portion of the heat exchange member (22, 32) facing each other. Condensed water that has not been immersed in the opening hole (14c). Accordingly, it is possible to prevent the thermoelectric elements (12, 13) and the heat exchange members (22, 32) from adhering to each other and water intrusion into the thermoelectric elements (12, 13).

  Further, since the thermoelectric elements (12, 13) and the heat exchange members (22, 32) can be directly bonded by the conductive adhesive (16) provided in the opening hole (14c), the thermal resistance can be reduced. . Accordingly, the heat exchange efficiency is increased and the thermoelectric conversion efficiency can be improved.

The invention according to claim 2 is a thermoelectric conversion device that is arranged in an air passage and cools or heats the air by exchanging heat with air flowing in the air passage.
Thermoelectric elements (12, 13) including a P-type thermoelectric element (12) and an N-type thermoelectric element (13), and heat exchanging members (22, 13) provided to be able to exchange heat with the thermoelectric elements (12, 13) and air 32) and a film-shaped sealing member (14) having an opening hole (14c) disposed between the thermoelectric element (12, 13) and the heat exchange member (22, 32). The thermoelectric elements (12, 13) and the heat exchange members (22, 32) are bonded to each other by the conductive adhesive (16) provided in the opening hole (14c), and are attached to the thermoelectric elements (12, 13). Is formed with a portion of the sealing member (14) opposite to the outer peripheral portion of the opening hole (14c), and the thermoelectric elements (12, 13) and the sealing member (14) are fixed to each other. It is characterized by being.

  According to the present invention, in the first aspect described above, the outer peripheral portion of the opening hole (14c) and the portion where the heat exchange members (22, 32) are arranged to face each other are fixed. Further, a configuration may be adopted in which the outer peripheral portion of the opening hole (14c) and the portion where the thermoelectric elements (12, 13) are arranged to face each other are fixed. Thereby, the dew condensation water which generate | occur | produced in the heat exchange member (22, 32) by the side of heat absorption does not pass through the opening hole (14c), and is immersed in the thermoelectric element (12, 13). Accordingly, it is possible to prevent water from entering the thermoelectric elements (12, 13).

  Further, the sealing member (14) in a state where the opening hole (14c) is opened is fixed to the thermoelectric element (12, 13) side because the sealing member (14) can be arranged in a planar shape. The outer peripheral portion of the opening hole (14c) can be easily fixed to the thermoelectric elements (12, 13), and airtightness is easily ensured.

According to a third aspect of the present invention, there is provided a thermoelectric conversion device that is arranged in an air passage and cools or heats the air by exchanging heat with air flowing in the air passage.
While electrically connecting the thermoelectric element (12, 13) including the P-type thermoelectric element (12) and the N-type thermoelectric element (13), the P-type thermoelectric element (12) and the N-type thermoelectric element (13), An electrode member (15) provided so as to be able to exchange heat with these thermoelectric elements (12, 13), a heat exchange member (22, 32) provided so as to be able to exchange heat with the electrode member (15) and air, and electrodes A film-like sealing member (14) in which an opening hole (14c) is formed and disposed between the member (15) and the heat exchange member (22, 32);
The electrode member (15) and the heat exchange member (22, 32) are bonded to each other by the conductive adhesive (16) provided in the opening hole (14c), and the electrode member (15) and the thermoelectric elements (12, 13). ) Are bonded to each other by the conductive adhesive (16), and the heat exchange member (22, 32) has a portion of the sealing member (14) that is disposed opposite to the outer peripheral portion of the opening hole (14c). The heat exchange member (22, 32) and the sealing member (14) are fixed to each other at this portion.

  According to the present invention, in the above-described first aspect, the thermoelectric element (12, 13) and the heat exchange member (22, 32) are directly bonded with the conductive adhesive (16). Not limited to this, a separate electrode member (15) may be provided between the thermoelectric elements (12, 13) and the heat exchange members (22, 32).

  In this case, as in the first aspect, the heat exchange on the heat absorption side is performed by fixing the outer peripheral portion of the opening hole (14c) and the portion of the heat exchange member (22, 32) facing each other. Condensed water generated in the members (22, 32) is not immersed in the opening hole (14c). Therefore, the adhesion location between the heat exchange member (22, 32) and the electrode member (15), the adhesion location between the electrode member (15) and the thermoelectric element (12, 13), and water immersion in the thermoelectric element (12, 13) are prevented. Can be prevented.

The invention according to claim 4 is a thermoelectric conversion device that is arranged in an air passage and cools or heats the air by exchanging heat with air flowing in the air passage.
While electrically connecting the thermoelectric element (12, 13) including the P-type thermoelectric element (12) and the N-type thermoelectric element (13), the P-type thermoelectric element (12) and the N-type thermoelectric element (13), An electrode member (15) provided so as to be able to exchange heat with these thermoelectric elements (12, 13), a heat exchange member (22, 32) provided so as to be able to exchange heat with the electrode member (15) and air, and electrodes A film-like sealing member (14) in which an opening hole (14c) is formed and disposed between the member (15) and the heat exchange member (22, 32);
The electrode member (15) and the heat exchange member (22, 32) are bonded to each other by the conductive adhesive (16) provided in the opening hole (14c), and the electrode member (15) and the thermoelectric elements (12, 13). ) Are bonded to each other by a conductive adhesive (16), and the electrode member (15) is formed with a portion of the sealing member (14) disposed opposite to the outer peripheral portion of the opening hole (14c). In this portion, the electrode member (15) and the sealing member (14) are fixed.

  According to the present invention, in the above-described third aspect, the outer peripheral portion of the opening hole (14c) and the portion where the heat exchange members (22, 32) are arranged to face each other are fixed. Further, a configuration may be adopted in which the outer peripheral portion of the opening hole (14c) and the portion of the electrode member (15) disposed to face each other are fixed. Thereby, the dew condensation water which generate | occur | produced in the heat exchange member (22, 32) by the side of heat absorption does not pass through the opening hole (14c), and is immersed in the thermoelectric element (12, 13). Accordingly, it is possible to prevent adhesion between the electrode member (15) and the thermoelectric elements (12, 13) and water immersion in the thermoelectric elements (12, 13).

The invention according to claim 5 is a thermoelectric conversion device which is arranged in an air passage and cools or heats the air by exchanging heat with the air flowing in the air passage.
While electrically connecting the thermoelectric element (12, 13) including the P-type thermoelectric element (12) and the N-type thermoelectric element (13), the P-type thermoelectric element (12) and the N-type thermoelectric element (13), An electrode member (15) provided so as to be able to exchange heat with these thermoelectric elements (12, 13), a heat exchange member (22, 32) provided so as to be able to exchange heat with the electrode member (15) and air, and a thermoelectric element (12, 13) and an electrode member (15) and a film-like sealing member (14) in which an opening hole (14c) is formed,
The thermoelectric element (12, 13) and the electrode member (15) are bonded to each other by the conductive adhesive (16) provided in the opening hole (14c), and the electrode member (15) and the heat exchange member (22, 32). ) Are bonded to each other by a conductive adhesive (16), and the electrode member (15) is formed with a portion of the sealing member (14) disposed opposite to the outer peripheral portion of the opening hole (14c). In this portion, the electrode member (15) and the sealing member (14) are fixed.

  According to the present invention, in the above-described third and fourth aspects, the sealing member (14) is arranged between the heat exchange member (22, 32) and the electrode member (15). Not limited to this, the sealing member (14) is disposed between the thermoelectric elements (12, 13) and the electrode member (15), and the outer peripheral portion of the opening hole (14c) and the electrode member (15) are disposed to face each other. You may comprise so that the site | part which adheres may adhere.

  Thereby, the dew condensation water which generate | occur | produced in the heat exchange member (22, 32) by the side of heat absorption does not pass through the opening hole (14c), and is immersed in the thermoelectric element (12, 13). Accordingly, it is possible to prevent adhesion between the electrode member (15) and the thermoelectric elements (12, 13) and water immersion in the thermoelectric elements (12, 13).

The invention according to claim 6 is a thermoelectric conversion device that is arranged in an air passage and cools or heats the air by exchanging heat with the air flowing in the air passage.
While electrically connecting the thermoelectric element (12, 13) including the P-type thermoelectric element (12) and the N-type thermoelectric element (13), the P-type thermoelectric element (12) and the N-type thermoelectric element (13), The thermoelectric elements (12, 13) and the electrode member (15) provided so as to be able to exchange heat, the electrode members (15) and the heat exchange members (22, 32) provided so as to be able to exchange heat with air, It has a film-like sealing member (14) in which an opening hole (14c) is formed while being arranged between the elements (12, 13) and the electrode member (15),
The thermoelectric element (12, 13) and the electrode member (15) are bonded to each other by the conductive adhesive (16) provided in the opening hole (14c), and the electrode member (15) and the heat exchange member (22, 32). ) Are bonded to each other by the conductive adhesive (16), and the thermoelectric elements (12, 13) are formed with portions of the sealing member (14) that are arranged to face the outer peripheral portion of the opening hole (14c). In this portion, the thermoelectric elements (12, 13) and the sealing member (14) are fixed.

  According to the present invention, in claim 5 described above, the sealing member (14) is disposed between the thermoelectric element (12, 13) and the electrode member (15), and the outer peripheral portion of the opening hole (14c) and the electrode Although it comprised so that the site | part arrange | positioned facing member (15) might be fixed, not only this but the outer peripheral part of opening hole (14c) and the site | part arrange | positioned facing thermoelectric elements (12, 13) are fixed. You may comprise so that it may do.

  Thereby, the dew condensation water which generate | occur | produced in the heat exchange member (22, 32) by the side of heat absorption does not pass through the opening hole (14c), and is immersed in the thermoelectric element (12, 13). Accordingly, it is possible to prevent water from entering the thermoelectric elements (12, 13).

  In the invention according to claim 7, the sealing member (14) is characterized in that an adhesive layer is laminated on the resin film. According to the present invention, the portion of the heat exchange member (22, 32), the electrode member (15), or the thermoelectric element (12, 13) that is disposed opposite to the outer peripheral portion of the opening hole (14c) can be easily formed. Can be fixed with an adhesive.

  Moreover, since the sealing member (14) made of a resin film has better processability than, for example, a printed board having a wiring pattern and a through hole, it is possible to reduce manufacturing component costs. Furthermore, since the resin film is more flexible than the printed circuit board, the adhesion location between the heat exchange member (22, 32) and the electrode member (15), the adhesion location between the electrode member (15) and the thermoelectric element (12, 13). In an apparatus in which there is in the vicinity, the reliability of the bonded portion can be improved by relaxing the thermal stress.

  The invention according to claim 8 is characterized in that the sealing member (14) is formed of a coverlay film having an adhesive layer. According to this invention, the part of the heat exchange member (22, 32), electrode member (15), or thermoelectric element (12, 13) that is disposed opposite to the outer periphery of the opening hole (14c) with an adhesive. Can be easily fixed with an adhesive. Furthermore, a part cost can be reduced by omitting the step of forming the adhesive layer on the resin film.

  In the invention according to claim 9, the sealing member (14) is characterized in that a bonding sheet is laminated on a resin film. According to this invention, the part of the heat exchange member (22, 32), electrode member (15), or thermoelectric element (12, 13) that is disposed opposite to the outer periphery of the opening hole (14c) with an adhesive. Can be fixed easily. Furthermore, a part cost can be reduced by omitting the step of forming the adhesive layer on the resin film.

  The invention according to claim 10 is characterized in that the sealing member (14) is a thermoplastic resin film. According to this invention, any one of the heat exchange member (22, 32), the electrode member (15), or the thermoelectric element (12, 13) is formed on the outer peripheral portion of the opening hole (14c) by being formed of a thermoplastic resin film. It can be easily fixed by applying a pressure at the oppositely arranged parts. This eliminates the need for an adhesive, thereby reducing component costs.

  The invention according to claim 11 is characterized in that the sealing member (14) is formed of any one of a polyimide resin, a polyethylene naphthalate resin, and a polyethylene terephthalate resin.

  According to the present invention, these resin films are easier to process than printed boards, and the cost of components can be reduced. In addition, it is easy to apply pressure to the outer peripheral portion of the opening hole (14c) at a position where the heat exchange member (22, 32), the electrode member (15), or the thermoelectric element (12, 13) is disposed oppositely. Can stick.

  In the invention according to claim 12, the sealing member (14) includes the adhesion portion between the thermoelectric element (12, 13) and the electrode member (15), the electrode member (15), and the heat exchange member (22, 32). A sealing member (17) is provided on a part or the whole of the surface so that any one of the bonding portions of the thermoelectric element (12, 13) and the heat exchange member (22, 32) is not exposed to the outside. It is characterized by having been applied.

  According to this invention, since these adhesion | attachment locations are covered with a sealing member (17), the infiltration of condensed water can be prevented. As a result, it is possible to prevent the occurrence of migration in which the solder components are ionized by the condensed water.

  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, the thermoelectric conversion apparatus in 1st Embodiment of this invention is demonstrated based on FIG. 1 thru | or FIG. FIG. 1 is a plan view showing the external shape of the thermoelectric conversion device before the fixing plate 23 is disposed in the present embodiment, and FIG. 2 is a cross-sectional view taken along line AA shown in FIG. FIG. 3 is an exploded schematic view showing the overall configuration of the thermoelectric converter. 4 is a cross-sectional view taken along the line CC shown in FIG. 2, and FIG. 5 is a cross-sectional view taken along the line BB shown in FIG.

  The thermoelectric conversion device of the present embodiment is a thermoelectric conversion device applied to a cooling device or a heating device mounted on a vehicle.For example, a thermoelectric conversion device is arranged in each of a seating portion and a backrest portion of a vehicle seat. And is applied to a sheet air conditioner that blows out the cold air cooled by the thermoelectric converter from the sheet surface.

  Therefore, the thermoelectric conversion device of the present embodiment is miniaturized so that the thermoelectric conversion device can be mounted in a vehicle seat having a small installation space. As shown in FIGS. 1 to 5, the thermoelectric conversion device includes a thermoelectric element substrate 10 in which a plurality of P-type thermoelectric elements 12 and a plurality of N-type thermoelectric elements 13 are arranged in a predetermined arrangement shape, and a pair of seals. Member 14, endothermic heat exchange member 22 disposed on the heat absorption side, heat radiation heat exchange member 32 disposed on the heat dissipation side, first fixing plate 23 disposed on the heat absorption side, first disposed on the heat dissipation side It consists of two fixed plates 33 and a pair of case members 28.

  As shown in FIGS. 2 to 5, the thermoelectric element substrate 10 integrally includes a holding plate 11 that holds the thermoelectric elements 12 and 13, and thermoelectric elements 12 and 13 that are P-type and N-type. Specifically, a pair of P-type thermoelectric elements 12 and N-type thermoelectric elements 13 are alternately arranged in a substantially grid pattern on a holding plate 11 made of an insulating material (for example, glass epoxy, PPS resin, LCP resin, or PET resin). A plurality of thermoelectric element groups arranged in pairs in a line are arranged in an integral manner.

  The holding plate 11 is formed in a rectangular shape (see FIG. 4) as a whole, and the outer edge is formed in a frame shape, and the inner side of the frame is formed thinner than the plate thickness of the frame to form a plurality of thermoelectric elements. A plurality of pairs 12 and 13 are arranged in a substantially grid pattern. A pair of sealing members 14 to be described later are bonded to both ends of the frame. This prevents the condensed water from entering the inside of the frame of the holding plate 11.

  The P-type thermoelectric element 12 is composed of a P-type semiconductor made of a Bi—Te-based compound, and the N-type thermoelectric element 12 is a minimal component composed of an N-type semiconductor made of a Bi—Te-based compound. The P-type thermoelectric element 12 and the N-type thermoelectric element 13 are formed so that the upper end surface and the lower end surface thereof do not protrude from the frame surface of the holding plate 11. The thermoelectric elements 12 and 13 are formed in a rectangular parallelepiped shape, and have a plate thickness substantially equal to the frame of the holding plate 11.

  The sealing member 14 is disposed between the heat exchange members 22 and 32 and the thermoelectric elements 12 and 13, and holds the plurality of heat exchange members 22 and 32 on one end face thereof. In the present embodiment, the dew condensation water adhering to the heat exchange member 22 on the low temperature side is prevented from being submerged into the internal thermoelectric elements 12, 13 themselves and the joint 16 between the thermoelectric elements 12, 13 and the heat exchange members 22, 32. The plurality of heat exchange members 22 and 32 are fixed to one end surface of the sealing member 14.

  The sealing member 14 has a resin film shape, and is formed in a rectangular shape whose overall shape is substantially the same as that of the holding plate 11. Further, the sealing member 14 includes a plurality of opening holes in a substantially grid pattern at portions corresponding to the adjacent P-type thermoelectric elements 12 and N-type thermoelectric elements 13 in the thermoelectric element group arranged on the thermoelectric element substrate 10. 14c is formed.

  The opening 14c is a joint portion 16 where the electrode portions 25 and 35 of the heat exchange members 22 and 32 described later and the thermoelectric elements 12 and 13 are directly joined. That is, when the electrode portions 25 and 35 of the heat exchange members 22 and 32 described later are joined to the thermoelectric elements 12 and 13, the opening 14 c is filled with solder to fill the electrode portions 25 and 35 and the thermoelectric elements 12 and 13. It is the junction part 16 which joins the end surface of this with solder.

  Therefore, the opening hole 14 c is formed with an opening smaller than the outer shape of the electrode portions 25 and 35. And the electrode parts 25 and 35 are arrange | positioned so that the opening hole 14c may be covered, and the several heat exchange members 22 and 32 are hold | maintained on the single side | surface of the sealing member 14. FIG. In the present embodiment, as the sealing member 14, a coverlay film in which an adhesive layer 14b made of an adhesive that is a conductive adhesive is laminated on both surfaces of a resin film 14a is used.

An opening 14 c is formed in a portion corresponding to the adjacent P-type thermoelectric element 12 and N-type thermoelectric element 13. Therefore, since the adhesive layer 14b made of an adhesive is formed on the outer peripheral portion of the opening hole 14c, the outer peripheral portion of the opening hole 14c is fixed by fixing the electrode portions 25 and 35 so as to cover the opening hole 14c. Can be sealed. (Details will be described in the assembly procedure in the manufacturing method described later.)
Here, the resin film 14a is formed of, for example, a resin of any one of a polyimide resin, a polyethylene naphthalate resin (PEN resin), or a polyethylene terephthalate resin (PET resin).

  Here, a cover lay film is used as the sealing member 14, but the present invention is not limited to this, and a bonding sheet in which bonding layers (for example, a conductive adhesive such as solder) 14 b are laminated on both surfaces of the resin film 14 a. May be used.

  By the way, in this sealing member 14, the heat exchange members 22 and 32 disposed in the opening hole 14c are arranged separately on the heat absorption side and the heat dissipation side. Specifically, as shown in FIGS. 2 and 3, a plurality of endothermic heat exchange members 22 are disposed on the sealing member 14 disposed on the upper side, and the sealing member 14 disposed on the lower side is disposed on the sealing member 14 disposed on the lower side. A plurality of heat radiation heat exchange members 32 are disposed.

  In addition, the upper and lower sealing members 14 are arranged on both surfaces of the thermoelectric element substrate 10 so that the thermoelectric elements 12 and 13 and the heat exchange members 22 and 32 are joined. At this time, the outer edge of each sealing member 14 is bonded to the frame of the holding plate 11. Thereby, the dew condensation water does not enter the thermoelectric element substrate 10 from the outside of the frame of the holding plate 11.

  In addition, at this time, the joint 16 formed in the opening 14c of the sealing member 14 disposed above is an electrode for flowing current from the adjacent N-type thermoelectric element 13 toward the P-type thermoelectric element 12. It has become. In addition, the joint 16 formed in the opening 14 c disposed below serves as an electrode for flowing current from the adjacent P-type thermoelectric element 12 to the N-type thermoelectric element 13.

  Next, as shown in FIG. 5, the heat exchange members 22 and 32 are thin plate materials made of a conductive metal such as a copper material. As shown in FIG. Electrode portions 25 and 35 are formed, and louver-like heat exchange portions 26 and 36 are formed on a plane extending outward from the electrode portions 25 and 35.

  The heat exchanging portions 26 and 36 are fins for absorbing and radiating heat transferred from the heat absorbing and radiating electrode portions 25 and 35, and are formed integrally with the electrode portions 25 and 35 by molding such as cutting and raising. is doing. The end surfaces of the heat absorbing and radiating electrode portions 25 and 35 are disposed so as to cover the opening hole 14 c of the sealing member 14.

  Here, as described above, the electrode portions 25 and 35 are formed so that the outer shape is larger than the opening hole 14c. More specifically, as shown in FIG. 6B, the sealing member 14 is formed with a rectangular opening 14c indicated by a solid line.

  Accordingly, the electrode portions 25 and 35 have a rectangular outer shape as indicated by a two-dot chain line in which the long side and the short side are larger by L1 (for example, about 0.2 to 1 mm). In other words, L1 is a bonding margin, and when the electrode portions 25 and 35 are disposed in the opening hole 14c, the opening hole 14c can be sealed by this bonding margin. Thereby, the site | part which opposes the outer peripheral part of the opening hole 14c is formed in the bottom face of the electrode parts 25 and 35. As shown in FIG.

  Further, the heat exchange members 22 and 32 adjacent to each other are disposed on the sealing member 14 with a predetermined gap so as to be electrically insulated from each other. Here, reference numerals 23 and 33 shown in FIGS. 2 and 3 are fixing plates, which are holding members for holding the other end sides of the heat exchange members 22 and 32. Thus, a predetermined gap is provided between the heat exchange members 22 and 32 adjacent to each other, and the adjacent heat exchange members 22 and 32 are electrically insulated from each other.

  The fixing plates 23 and 33 are made of a flat insulating material (for example, glass epoxy, PPS resin, LCP resin, or PET resin) in the same manner as the holding plate 11 described above. A fixing hole (not shown) is formed so that the end side penetrates.

  In addition, terminals 24a and 24b, which are power terminals, are provided at the ends of the thermoelectric elements 12 and 13 disposed at the left and right ends shown in FIG. 1, and the terminals 24a and 24b are connected to a positive power source (not shown). The side terminal is connected to the terminal 24a, and the negative side terminal is connected to the terminal 24b.

  As a result, a plurality of joints 16 and endothermic heat exchange members 22 formed on the upper side are disposed so as to be electrically connected from the adjacent N-type thermoelectric element 13 to the P-type thermoelectric element 12, and on the lower side. A plurality of formed joint portions 16 and heat radiation heat exchange members 32 are disposed so as to be electrically connected from the adjacent P-type thermoelectric element 12 to the N-type thermoelectric element 13.

  By the way, the DC power input from the terminal 24a flows in series from the leftmost P-type thermoelectric element 12 shown in FIG. 2 to the N-type thermoelectric element 13 through the junction 16 formed below, It flows in series from the N-type thermoelectric element 13 to the P-type thermoelectric element 12 through a joint 16 formed upward.

  At this time, the connection part formed below that constitutes the PN junction part is in a high temperature state due to the Peltier effect, and the junction part 16 formed above that constitutes the NP junction part is in a low temperature state. That is, the heat exchanging part 26 arranged on the upper side forms an endothermic heat exchanging part, heat in a low temperature state is transferred to contact with the fluid to be cooled, and the heat exchanging part 36 installed on the lower side is radiated heat. An exchange part is formed and heat in a high temperature state is transferred to contact the cooling fluid.

  In other words, as shown in FIG. 2, with the thermoelectric element substrate 10 as a partition wall, the case member 28 forms a ventilation passage on both sides of the thermoelectric element substrate 10, and distributes air as a heat exchange medium through the ventilation passage. Thus, heat exchange between the heat exchange units 26 and 36 and the air is performed, and the air can be cooled by the upper heat exchange unit 26 using the thermoelectric element substrate 10 as a partition wall, and the air can be cooled by the lower heat exchange unit 36. Can be heated.

  In the present embodiment, the positive terminal of the DC power source is connected to the terminal 24a side, the negative terminal is connected to the terminal 24b side, and the DC power source is input to the terminal 24a. The positive terminal may be connected to the terminal 24b side, the negative terminal may be connected to the terminal 24a side, and a DC power supply may be input to the terminal 24b. However, at this time, the upper endothermic heat exchange member 22 forms a heat dissipation heat exchange portion, and the lower endothermic heat exchange member 32 forms an endothermic heat exchange portion.

  Next, the manufacturing method of the thermoelectric conversion apparatus by the above structure is demonstrated. First, as shown in FIGS. 2 to 4, the thermoelectric elements 12, 13 are arranged in a plurality of P-type and N-type alternately in a substantially grid pattern in a substrate hole provided in the holding plate 11. 10 are integrally formed. The plurality of thermoelectric elements 12 and 13 are fixed to the substrate holes with an adhesive.

  Here, the thermoelectric elements 12 and 13 may be assembled using a mounter device which is a manufacturing apparatus for assembling a semiconductor, an electronic component or the like to the control board. According to this, if the element dimensions of the thermoelectric elements 12 and 13 are about 1.5 mm × 1.5 mm or more, the thermoelectric elements 12 and 13 can be easily picked up and can be assembled without lowering the productivity.

  In the present embodiment, the plurality of heat exchange members 22 and 32 are held by the sealing member 14 and then assembled to the thermoelectric element substrate 10. More specifically, the thermoelectric conversion device is assembled by the assembly procedure shown in FIGS. 6 (a) to 6 (e). Hereinafter, a description will be given based on FIGS. 6 (a) to 6 (e).

  First, as shown to Fig.6 (a), it forms in the external shape equivalent to the external shape of the holding | maintenance board 11 using the coverlay film by which the adhesive layer 14b which consists of an adhesive agent was laminated | stacked on both surfaces of the resin film 14a. Then, as shown in FIG. 6 (b), a plurality of opening holes 14 c are formed in portions corresponding to the pair of thermoelectric elements 12 and 13 disposed on the thermoelectric element substrate 10. Here, the plurality of opening holes 14c can be processed in one step including cutting of the outer shape by press working.

  As described above, the opening 14c has a rectangular shape in which the long side and the short side are smaller than the outer shape of the electrode portions 25 and 35 indicated by the two-dot chain line by about L1 (for example, about 0.2 to 1 mm). The through hole is formed. Thereby, the site | part which opposes the outer peripheral part of the opening hole 14c is formed in the bottom face of the electrode parts 25 and 35. As shown in FIG.

  Then, as shown in FIG. 6C, the heat exchange members 22 and 32 are bonded to the sealing member 14 by pressing the bottom surfaces of the electrode portions 25 and 35 so as to cover the opening holes 14 c. That is, in the sealing member 14, the opening hole 14 c can be sealed by bonding the outer peripheral part of the opening hole 14 c to the electrode parts 25 and 35.

  Here, if the plurality of heat exchange members 22 and 32 are assembled to the sealing member 14 using the mounter device, the plurality of heat exchange members 22 and 32 can be easily assembled to the respective opening holes 14c.

  The sealing member 14 disposed above the thermoelectric element substrate 10 holds a plurality of endothermic heat exchange members 22, and the sealing member 14 disposed below the thermoelectric element substrate 10 has a plurality of heat dissipation heat exchanges. The member 32 is held. Thus, the outer peripheral portions of the plurality of opening holes 14c are sealed with the adhesive layer 14b, so that the dew condensation water generated on the heat absorption side does not enter the opening holes 14c from the outside of the sealing member 14.

  Then, as shown in FIG. 6D, the electrode portions 25 and 35 exposed in the plurality of opening holes 14c are filled with solder 16 which is a conductive adhesive. Thereby, the joining part 16 is formed in the opening hole 14c.

  As shown in FIG. 6 (e), a thermoelectric element is interposed between the sealing member 14 holding the plurality of endothermic heat exchange members 22 and the sealing member 14 holding the plurality of radiant heat exchange members 32. A pair of thermoelectric elements 12 and 13 are brought into contact with each joint 16 and joined together by soldering at the same time.

  As a result, the end faces of the thermoelectric elements 12 and 13 and the electrode portions 25 and 35 are directly joined via the solder 16. Thereby, the some thermoelectric elements 12 and 13 can be electrically connected directly, without providing an electrode member.

  At this time, the outer edge of the sealing member 14 is pressed to the entire outer periphery of the sealing member 14, whereby the outer edge of the sealing member 14 is bonded to the frame of the holding plate 11. Accordingly, the dew condensation water does not enter the thermoelectric elements 12 and 13 themselves, the joint portions 16 between the electrode portions 25 and 35 and the end faces of the thermoelectric elements 12 and 13 from the outside of the sealing member 14.

  In addition, in this embodiment, although it comprised so that the junction part 16 formed above and below might be joined simultaneously, it is not restricted to this, The sealing member by which the endothermic heat exchange member 22 was hold | maintained at the thermoelectric element board | substrate 10 14, the joining portion 16 and the pair of thermoelectric elements 12 and 13 are brought into contact with each other to join only one side at a time, and then the thermoelectric element substrate 10 is reversed, and then the heat radiation heat exchange member 32 is held. The member 14 may be stacked to join the joint 16 and the pair of thermoelectric elements 12 and 13 together.

  Thereby, the junction 16 formed on the upper side forms an NP junction, and the adjacent thermoelectric elements 12 and 13 are connected in series, and the junction 16 formed on the lower side becomes a PN junction. The adjacent thermoelectric elements 12 and 13 are electrically connected in series.

  And the end part of the other end side is arrange | positioned with respect to the electrode parts 25 and 35 of the endothermic heat exchange member 22 and the radiation heat exchange member 32, and it fixes to the fixing hole formed in each fixing plate 23 and 33. . As a result, the end portions of the heat exchange members 22 and 32 are fixed to the fixing plates 23 and 32, so that a predetermined gap is formed between the adjacent heat exchange members 22 and 32, thereby being electrically insulated.

  Then, by assembling the upper side of the fixed plate 22, the lower side of the fixed plate 32, and these sides so as to form an air path by the case member 28, an endothermic heat exchanging portion is formed on the upper side, and the lower side A heat radiating heat exchanging portion is formed in the air, and it is possible to obtain cold air and hot air by circulating air therethrough.

  In addition to the seat air conditioner, this type of thermoelectric converter is used for cooling a heat-generating component such as a semiconductor or an electrical component or for heating a heating device.

  According to the thermoelectric conversion device according to the first embodiment described above, the outer peripheral portion of the opening hole 14c formed in the sealing member 14 and the portion where the electrode portions 25 and 35 of the heat exchange members 22 and 32 are disposed to be bonded are bonded. By being fixed with the agent, the dew condensation water generated in the heat exchange members 22 and 32 on the heat absorption side does not enter the opening hole 14c. Accordingly, it is possible to prevent water from entering the adhesion portion between the end faces of the thermoelectric elements 12 and 13 accommodated inside and the electrode portions 25 and 35 and the thermoelectric elements 12 and 13 themselves.

  Further, since the thermoelectric elements 12 and 13 and the electrode portions 25 and 35 can be directly bonded by the solder 16 provided in the opening hole 14c, the thermal resistance can be reduced. Accordingly, the heat exchange efficiency is increased and the thermoelectric conversion efficiency can be improved.

  Moreover, the sealing member 14 can adhere | attach the site | part by which the electrode parts 25 and 35 are opposed to an outer peripheral part of the opening hole 14c easily with an adhesive agent by laminating | stacking the adhesive layer on the resin film. Furthermore, since the sealing member 14 made of a resin film has better processability than, for example, a printed circuit board having a wiring pattern and a through hole, it is possible to reduce manufacturing component costs.

  In addition, since the resin film is more flexible than the printed circuit board, in an apparatus in which the adhesion portion between the electrode portions 25 and 35 and the thermoelectric elements 12 and 13 exists in the vicinity, the thermal stress is relieved so that the reliability of the adhesion portion is improved. Can improve the performance.

  In addition, by forming the sealing member 14 with a cover lay film having an adhesive layer, a portion where the electrode portions 25 and 35 are arranged to face each other can be easily fixed to the outer peripheral portion of the opening hole 14c with an adhesive. Furthermore, a part cost can be reduced by omitting the step of forming the adhesive layer on the resin film.

  In addition, by forming the sealing member 14 with a resin film on which a bonding sheet is laminated, a portion where the electrode portions 25 and 35 are arranged to face each other can be easily fixed to the outer peripheral portion of the opening hole 14c with an adhesive. Furthermore, a part cost can be reduced by omitting the step of forming the adhesive layer on the resin film.

  Further, since the resin film 14a is formed of a resin of any one of a polyimide resin, a polyethylene naphthalate resin, and a polyethylene terephthalate resin, these resin films 14a are easier to process than a printed circuit board. Cost can be reduced. Moreover, it can seal easily by pressing with the electrode parts 25 and 35 to the outer peripheral part of the opening hole 14c.

(Second Embodiment)
In the first embodiment described above, the opening portion 14c for joining the thermoelectric elements 12 and 13 and the heat exchange members 22 and 32 is formed in the sealing member 14, and the electrode portion 25 is covered with the opening hole 14c. , 35 are fixed, and the thermoelectric elements 12 and 13 are arranged on the electrode portions 25 and 35 exposed in the opening hole 14 and joined with the solder 18, but the present invention is not limited thereto, and the opening hole 14c is covered with the lid. As described above, the thermoelectric elements 12 and 13 may be fixed, and the electrode portions 25 and 35 may be disposed on the thermoelectric elements 12 and 13 exposed in the opening 14 and joined by the solder 18.

  Specifically, as shown in FIG. 7, after the sealing member 14 in which the opening hole 14 c is formed is disposed on both surfaces of the thermoelectric element substrate 10, a plurality of heat exchange members 22 and 32 are provided on the sealing member 14. Assemble.

  More specifically, the thermoelectric converter is assembled by the assembly procedure shown in FIGS. 8 (a) to 8 (e). Hereinafter, a description will be given with reference to FIGS. 8A to 8E. First, as shown in FIG. 8A, an outer shape equivalent to the outer shape of the holding plate 11 is formed using a coverlay film in which an adhesive layer 14b made of an adhesive is laminated on both surfaces of a resin film 14a.

  And as shown in FIG.8 (b), the some opening hole 14c is formed in the site | part corresponding to the thermoelectric elements 12 and 13 arrange | positioned in the thermoelectric element board | substrate 10. As shown in FIG. The opening hole 14c of the present embodiment is a rectangular shape in which the long side and the short side are smaller by about L1 (for example, about 0.2 to 1 mm) than the outer shape of the end faces of the thermoelectric elements 12 and 13 indicated by the two-dot chain line. A through hole is formed.

  Thereby, the site | part facing the outer peripheral part of the opening hole 14c is formed in the end surface of the thermoelectric elements 12 and 13. FIG. And as shown in FIG.8 (c), the sealing member 14 is pressed on the end surface of the thermoelectric elements 12 and 13 so that the opening hole 14c may be covered with the end surface of the thermoelectric elements 12 and 13, and it adheres and adheres. Thereby, the outer peripheral part of each opening hole 14c can be adhere | attached by the adhesion allowance L1, and can be sealed.

  At this time, the outer edge of the sealing member 14 is pressed to the entire outer periphery of the sealing member 14, whereby the outer edge of the sealing member 14 is bonded to the frame of the holding plate 11. Accordingly, the dew condensation water does not enter the thermoelectric elements 12 and 13 themselves, the joint portions 16 between the electrode portions 25 and 35 and the end faces of the thermoelectric elements 12 and 13 from the outside of the sealing member 14.

  And as shown in FIG.8 (d), the solder 16 which is a conductive adhesive is filled into the end surface of the thermoelectric elements 12 and 13 exposed to the some opening hole 14c. Thereby, the joining part 16 is formed in the opening hole 14c.

  Then, as shown in FIG. 8E, a plurality of electrode portions 25 and 35 are arranged so as to cover the respective opening holes 14c, and are joined together by the solder 16. Thereby, the electrode parts 25 and 35 are joined to the sealing member 14 by the solder 16 including the outer peripheral part of the opening hole 14c. That is, the plurality of heat exchange members 22 and 32 are held by the sealing member 14.

  Therefore, the end faces of the thermoelectric elements 12 and 13 and the electrode portions 25 and 35 are directly joined via the solder 16. Furthermore, the outer peripheral portion of the outer opening 14c is hermetically sealed with the solder 16, so that dew condensation water generated on the heat absorption side does not enter the opening 14c from the outside of the sealing member 14.

  Note that, for example, even if the solder 16 deteriorates and the opening 14c is submerged from the outside of the sealing member 14, the end surfaces of the thermoelectric elements 12 and 13 are fixed with an adhesive so that the thermoelectric elements 12 and 13 are fixed. It does not flood itself.

  By the way, in this embodiment, when arrange | positioning the heat exchange members 22 and 32 in the sealing member 14, since the flatness of the junction part 16 of the sealing member 14 is better than the said 1st Embodiment, it is the opening hole 14c. Can be easily fixed to the end faces of the thermoelectric elements 12 and 13.

  Moreover, the heat exchange members 22 and 32 have a substantially U-shaped cross section, so that the bottom surfaces of the electrode portions 25 and 35 are bent in an R shape. For this reason, it is necessary to adhere the sealing member 14 along R. However, since the thermoelectric elements 12 and 13 are formed in a substantially rectangular parallelepiped shape, the thermoelectric elements 12 and 13 are easily fixed when the sealing member 14 is bonded to the end faces of the thermoelectric elements 12 and 13. Therefore, it is easier to adhere the thermoelectric elements 12 and 13 to the sealing member 14 than to adhere the electrode portions 25 and 35 to the sealing member 14.

  According to the thermoelectric conversion device having the above configuration, the end surfaces of the thermoelectric elements 12 and 13 are fixed to the outer peripheral portion of the opening hole 14c of the sealing member 14, and the thermoelectric elements 12 and 13 exposed to the plurality of opening holes 14c are further fixed. By filling the end surface of the solder 16 with the solder 16 and arranging and joining the electrode portions 25 and 35 to the opening hole 14c, the thermoelectric element can be used even if the opening hole 14c is submerged from the outside of the sealing member 14. Since the end faces of 12 and 13 are fixed with an adhesive, the thermoelectric elements 12 and 13 themselves are not submerged.

  In addition, the end face of the thermoelectric elements 12 and 13 is formed in a planar shape in the present embodiment rather than the first embodiment in which the bottom surfaces of the electrode parts 25 and 35 are bonded, thereby bonding to the outer peripheral part of the opening 14c. It is easy to ensure airtightness.

(Third embodiment)
In the present embodiment, a sealing member is applied so that the joining portion 16 where the electrode portions 25 and 35 and the end faces of the thermoelectric elements 12 and 13 are joined is not exposed to the outside of the sealing member 14. For example, in the second embodiment, when the electrode portions 25 and 35 and the end faces of the thermoelectric elements 12 and 13 are joined with the solder 16, the sealing member 14 is bonded to the end faces of the thermoelectric elements 12 and 13.

  For this reason, the solder 16 that joins the electrode portions 25 and 35 and the end faces of the thermoelectric elements 12 and 13 cannot be hermetically sealed by the sealing member 14. Therefore, in this embodiment, after joining the electrode portions 25 and 35 and the end faces of the thermoelectric elements 12 and 13, as shown in FIG. 9, the seal member 17 is applied along at least the outer shape of the electrode portions 25 and 35. ing.

  Here, the seal member 17 is locally applied. However, the present invention is not limited to this, and the seal member 17 may be applied to the entire outer surface of the sealing member 14. Furthermore, also in the configuration as in the first embodiment, after joining the electrode portions 25 and 35 and the end faces of the thermoelectric elements 12 and 13, the sealing member 17 is applied along at least the outer shape of the electrode portions 25 and 35. Anyway.

  According to the above configuration, since the joint portion 16 is covered with the seal member 17, it is possible to prevent the condensed water from entering the joint portion 16 from the outside of the sealing member 14. Therefore, it is possible to prevent the occurrence of migration in which the components of the solder 16 are ionized due to dew condensation water.

(Fourth embodiment)
In the above embodiment, the sealing member 14 is formed by the coverlay film having the adhesive layer 14b or the bonding sheet in which the bonding layer is laminated on the resin film 14a. However, the sealing member 14 is not limited to this and is sealed by a thermoplastic resin film. The stop member 14 may be formed.

  Specifically, as shown in FIG. 10A, the sealing member 14 is formed of a thermoplastic resin film 14a and a plurality of opening holes 14c are formed at predetermined positions. And the sealing member 14 is heated, and it is crimped | bonded to the electrode part 35 of the several heat exchange member 32 so that the opening hole 14c may be covered. Thereby, the outer peripheral part of the opening hole 14c is crimped | bonded by the electrode part 35, and the several heat exchange member 32 is hold | maintained at the sealing member 14. FIG.

  Further, as shown in FIG. 10B, the sealing member 14 is formed of a thermoplastic resin film 14a, and a plurality of opening holes 14c are formed at predetermined positions. And the sealing member 14 is heated, and it is crimped | bonded to the end surface of the several thermoelectric elements 12 and 13 so that the opening hole 14c may be covered. Thus, the sealing member 14 can be disposed on the thermoelectric element substrate 10 by fixing the outer peripheral portion of the opening hole 14 c to the end surfaces of the thermoelectric elements 12 and 13 by pressure bonding. According to the above configuration, the cost of components can be reduced by eliminating the need for a conductive adhesive such as an adhesive or solder.

(Fifth embodiment)
In the first embodiment, the opening 14c for joining the thermoelectric elements 12 and 13 and the heat exchange members 22 and 32 to the sealing member 14 is formed, and the electrode portion 25 and the opening 14c are covered. 35 is fixed, and the thermoelectric elements 12 and 13 are arranged in the electrode portions 25 and 35 exposed in the opening holes 14 and are joined by the solder 18. However, the present invention is not limited to this, and specifically, FIG. 11, a separate electrode member 15 that electrically connects the P-type thermoelectric element 12 and the N-type thermoelectric element 13 is provided, and one end face of the electrode member 15 is soldered to the end faces of the thermoelectric elements 12 and 13. The electrode portions 25 and 35 may be joined to the other end surface of the electrode member 15 via the solder 16 filled in the opening hole 14c.

  In the present embodiment, the sealing member 14 in which the opening hole 14 c is formed is disposed between the heat exchange members 22 and 32 and the electrode member 15, and the electrode member 15 is disposed on the heat exchange members 22 and 32. In the pre-process to be joined, the plurality of heat exchange members 22 and 32 are held on the sealing member 14 with an adhesive.

  The electrode member 15 is formed of a conductive metal such as a flat copper material, and electrically connects a pair of adjacent P-type thermoelectric elements 12 and N-type thermoelectric elements 13 among the thermoelectric element groups arranged on the thermoelectric element substrate 10. The electrodes are connected in series.

  More specifically, as shown in FIG. 11, the electrode member 15 disposed above is an electrode for allowing a current to flow from the adjacent N-type thermoelectric element 13 toward the P-type thermoelectric element 12. The arranged electrode member 15 is an electrode for causing a current to flow from the adjacent P-type thermoelectric element 12 to the N-type thermoelectric element 13.

  In other words, the electrode member 15 disposed on the upper side forms an NP junction, the adjacent thermoelectric elements 12 and 13 are connected in series, and the electrode member 15 disposed on the lower side is connected with the PN junction. The adjacent thermoelectric elements 12 and 13 are electrically connected in series.

  As shown in FIG. 12, the electrode member 15 is soldered so that the electrode members 15 are electrically connected in series to both end faces of the thermoelectric elements 12 and 13 arranged adjacent to the thermoelectric element substrate 10. Are joined together. More specifically, paste solder 16 or the like is applied thinly and uniformly to the end faces of the thermoelectric elements 12 and 13 in advance by screen printing, and then joined by soldering.

  As in the first embodiment (see FIG. 6C), the plurality of heat exchange members 22 and 32 exchange heat by pressing the bottom surfaces of the electrode portions 25 and 35 so as to cover the opening 14c. The members 22 and 32 are bonded to the sealing member 14. Thereby, the outer peripheral part of the opening hole 14c is adhere | attached with the electrode parts 25 and 35, and the opening hole 14c can be sealed.

  Then, the assembly of the sealing member 14 holding the plurality of heat exchange members 22 and 32 and the thermoelectric element substrate 10 is performed in the same manner as in the first embodiment by sealing the plurality of endothermic heat exchange members 22. The thermoelectric element substrate 10 is sandwiched between the stop member 14 and the sealing member 14 holding the plurality of heat radiation heat exchange members 32, and the respective electrode members 15 are brought into contact with the respective joint portions 16. Join together by soldering.

  Thereby, the electrode member 15 and the electrode parts 25 and 35 are directly joined via the solder 16. At this time, the outer edge of the film-shaped sealing member 14 is bonded to the frame of the holding plate 11 by pressing the entire outer periphery of the sealing member 14. Accordingly, the dew condensation water does not enter the thermoelectric elements 12 and 13 themselves, the joint portions 16 between the electrode portions 25 and 35 and the end faces of the thermoelectric elements 12 and 13 from the outside of the sealing member 14.

  According to the above configuration, in the first embodiment, the thermoelectric elements 12 and 13 and the heat exchange members 22 and 32 are directly bonded with the solder 16, but the present invention is not limited thereto, and the thermoelectric elements 12 and 13 are configured. A separate electrode member 15 may be provided between the heat exchange members 22 and 32.

  In this case, in the same manner as in the first embodiment, the heat exchange members 22 and 32 on the heat absorption side are fixed by fixing the outer peripheral portion of the opening hole 14c and the portions where the electrode portions 25 and 35 are opposed to each other. The generated dew condensation water does not enter the opening hole 14c. Accordingly, it is possible to prevent the adhesion between the electrode portions 25 and 35 and the electrode member 15, the adhesion between the electrode member 15 and the thermoelectric elements 12 and 13, and water immersion in the thermoelectric elements 12 and 13.

(Sixth embodiment)
In the fifth embodiment, a separate electrode member 15 is provided, and one end surface of the electrode member 15 is joined to the end surfaces of the thermoelectric elements 12 and 13 by soldering to constitute the thermoelectric element substrate 10. The sealing member 14 in which the plurality of heat exchange members 22 and 32 are held is assembled. However, the present invention is not limited to this, and a separate electrode member 15 is provided, and the electrode members 15 are provided on the end faces of the thermoelectric elements 12 and 13. The thermoelectric element substrate 10 may be configured by joining one end surfaces thereof with solder, and after the sealing member 14 is disposed on the thermoelectric element substrate 10, a plurality of heat exchange members 22 and 32 may be assembled.

  Specifically, as shown in FIG. 13, after one end surface of the electrode member 15 is joined to the end surfaces of the thermoelectric elements 12 and 13 with solder 16 to form the thermoelectric element substrate 10, the thermoelectric element substrate 10 is formed on both surfaces of the thermoelectric element substrate 10. The sealing member 14 in which the opening hole 14c is formed is disposed.

  Thereby, the outer edge of the film-shaped sealing member 14 is bonded to the frame of the holding plate 11 by pressing the entire outer periphery of the sealing member 14. Accordingly, the dew condensation water does not enter the thermoelectric elements 12 and 13 themselves, the joint portions 16 between the electrode portions 25 and 35 and the end faces of the thermoelectric elements 12 and 13 from the outside of the sealing member 14.

  Then, after filling the opening 16c of the sealing member 14 with the solder 16, the plurality of heat exchange members 22 and 32 are fixed and arranged, and then the electrode member 15 and the electrode portions 25 and 35 are joined together. Thereby, the electrode member 15 and the electrode parts 25 and 35 are directly joined via the solder 16.

  According to the above configuration, in the fifth embodiment, the outer peripheral portion of the opening hole 14c and the portion where the electrode portions 25 and 35 are arranged to be opposed to each other are fixed. The structure which adhere | attaches the outer peripheral part of this and the site | part arrange | positioned facing the electrode member 15 may be sufficient. Thereby, the dew condensation water generated by the heat exchange members 22 and 32 on the heat absorption side does not pass through the opening hole 14c and enter the thermoelectric elements 12 and 13. Therefore, it is possible to prevent water from entering the bonding portion between the electrode member 15 and the thermoelectric elements 12 and 13 and the thermoelectric elements 12 and 13 themselves.

(Seventh embodiment)
In the fifth and sixth embodiments, the sealing member 14 is arranged between the heat exchange members 22 and 32 and the electrode member 15. However, the present invention is not limited thereto, and the thermoelectric elements 12 and 13 and the electrode member are arranged. The sealing member 14 may be disposed between the outer peripheral portion of the opening hole 14 c and the portion of the electrode member 15 facing the electrode member 15.

  Specifically, as shown in FIGS. 14 and 15, a separate electrode member 15 that electrically connects the P-type thermoelectric element 12 and the N-type thermoelectric element 13 is provided, and the opening 14c is formed. The stop member 14 is disposed between the thermoelectric elements 12 and 13 and the electrode member 15.

  And the sealing member 14 fixes the outer peripheral part of the opening hole 14c, and the site | part by which the electrode member 15 is opposingly arranged. And after filling the opening hole 14c of the sealing member 14 with the solder 16 and arrange | positioning on the thermoelectric element board | substrate 10, the electrode member 15 and the thermoelectric elements 12 and 13 are joined simultaneously.

  Then, the electrode portions 25 and 35 are disposed on the electrode member 15 disposed on the thermoelectric element substrate 10 and are joined together by the solder 16. Accordingly, the plurality of heat exchange members 22 and 32 are provided on the thermoelectric element substrate 10.

  Thereby, the dew condensation water generated by the heat exchange members 22 and 32 on the heat absorption side does not pass through the opening hole 14c and enter the thermoelectric elements 12 and 13. Accordingly, it is possible to prevent adhesion between the electrode member 15 and the thermoelectric elements 12 and 13 and water intrusion to the thermoelectric elements 12 and 13.

(Eighth embodiment)
In the seventh embodiment, the sealing member 14 is disposed between the thermoelectric elements 12 and 13 and the electrode member 15 so that the outer peripheral portion of the opening hole 14c and the portion where the electrode member 15 is disposed are fixed. Although comprised, it is not restricted to this, You may comprise so that the outer peripheral part of the opening hole 14c and the site | part by which the thermoelectric elements 12 and 13 are opposingly arranged may be fixed.

  Specifically, as shown in FIG. 16, the sealing member 14 is pressed against the end surfaces of the thermoelectric elements 12 and 13 so as to cover the opening holes 14 c with the end surfaces of the thermoelectric elements 12 and 13, and is fixed by adhesion. Then, after the opening hole 14 c of the sealing member 14 is filled with the solder 16, the electrode member 15 is disposed in the opening hole 14 c and the electrode member 15 and the thermoelectric elements 12 and 13 are joined together by the solder 16.

  Then, the electrode portions 25 and 35 are disposed on the electrode member 15 disposed on the sealing member 14 and are joined together by the solder 16. Accordingly, the plurality of heat exchange members 22 and 32 are provided on the thermoelectric element substrate 10.

  Thereby, the dew condensation water generated by the heat exchange members 22 and 32 on the heat absorption side does not pass through the opening hole 14c and enter the thermoelectric elements 12 and 13. Accordingly, it is possible to prevent water from entering the thermoelectric elements 12 and 13.

(Other embodiments)
In the first to third and fifth to eighth embodiments, the sealing member 14 is formed by the coverlay film having the adhesive layer 14b or the bonding sheet in which the bonding layer is laminated on the resin film 14a. The sealing member 14 may be formed of a film in which a bonding member such as solder is laminated on the resin film 14a.

  In the above embodiment, the present invention is applied to a seat air conditioner mounted on a vehicle. However, the present invention is not limited to a vehicle, and may be applied to a cooling device or a heating device that cools or heats blown air using a Peltier element. Also good.

It is a top view which shows the external appearance shape of the thermoelectric conversion apparatus before arrange | positioning the stationary plate in 1st Embodiment of this invention. It is AA sectional drawing shown in FIG. It is a disassembled schematic diagram which shows the whole structure of the thermoelectric conversion apparatus in 1st Embodiment of this invention. CC cross section shown in FIG. It is BB sectional drawing shown in FIG. (A) thru | or (e) is explanatory drawing which shows the assembly | attachment procedure in the manufacturing method of the sealing member 14 in 1st Embodiment of this invention. It is a top view which shows the external appearance shape of the thermoelectric conversion apparatus before arrange | positioning the stationary plate in 2nd Embodiment of this invention. (A) thru | or (e) is explanatory drawing which shows the assembly | attachment procedure in the manufacturing method of the sealing member 14 in 2nd Embodiment of this invention. It is sectional drawing which shows schematic structure of the thermoelectric conversion apparatus in 3rd Embodiment of this invention. (A) And (b) is explanatory drawing which shows the assembly | attachment in the manufacturing method of the sealing member 14 in 4th Embodiment of this invention. It is sectional drawing which shows the whole structure of the thermoelectric conversion apparatus in 5th Embodiment of this invention. It is a disassembled schematic diagram which shows the whole structure of the thermoelectric conversion apparatus in 5th Embodiment of this invention. It is a disassembled schematic diagram which shows the whole structure of the thermoelectric conversion apparatus in 6th Embodiment of this invention. It is sectional drawing which shows the whole structure of the thermoelectric conversion apparatus in 7th Embodiment of this invention. It is a disassembled schematic diagram which shows the whole structure of the thermoelectric conversion apparatus in 7th Embodiment of this invention. It is a disassembled schematic diagram which shows the whole structure of the thermoelectric conversion apparatus in 8th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 12 ... P-type thermoelectric element, thermoelectric element 13 ... N-type thermoelectric element, thermoelectric element 14 ... Sealing member 14c ... Opening hole 15 ... Electrode member 16 ... Solder (conductive adhesive)
17 ... Seal member 22 ... Endothermic heat exchange member, heat exchange member 32 ... Endothermic heat exchange member, heat exchange member

Claims (12)

A thermoelectric conversion device that is arranged in an air passage and cools or heats the air by exchanging heat with air flowing in the air passage,
Thermoelectric elements (12, 13) including a P-type thermoelectric element (12) and an N-type thermoelectric element (13);
A heat exchange member (22, 32) provided so as to be able to exchange heat with the thermoelectric element (12, 13) and the air;
A film-shaped sealing member (14) having an opening (14c) formed between the thermoelectric element (12, 13) and the heat exchange member (22, 32);
The thermoelectric element (12, 13) and the heat exchange member (22, 32) are bonded to each other by a conductive adhesive (16) provided in the opening hole (14c),
The heat exchange member (22, 32) is formed with a portion of the sealing member (14) that is disposed opposite to the outer peripheral portion of the opening hole (14c),
The thermoelectric conversion device, wherein the heat exchange member (22, 32) and the sealing member (14) are fixed to each other at the site. A thermoelectric conversion device that is arranged in an air passage and cools or heats the air by exchanging heat with air flowing in the air passage,
Thermoelectric elements (12, 13) including a P-type thermoelectric element (12) and an N-type thermoelectric element (13);
A heat exchange member (22, 32) provided so as to be able to exchange heat with the thermoelectric element (12, 13) and the air;
A film-shaped sealing member (14) having an opening (14c) formed between the thermoelectric element (12, 13) and the heat exchange member (22, 32);
The thermoelectric element (12, 13) and the heat exchange member (22, 32) are bonded to each other by a conductive adhesive (16) provided in the opening hole (14c),
The thermoelectric element (12, 13) is formed with a portion of the sealing member (14) that is disposed opposite the outer peripheral portion of the opening hole (14c),
The thermoelectric conversion device, wherein the thermoelectric element (12, 13) and the sealing member (14) are fixed to each other at the site. A thermoelectric conversion device that is arranged in an air passage and cools or heats the air by exchanging heat with air flowing in the air passage,
Thermoelectric elements (12, 13) including a P-type thermoelectric element (12) and an N-type thermoelectric element (13);
The P-type thermoelectric element (12) and the N-type thermoelectric element (13) are electrically connected to each other, and an electrode member (15) provided to be able to exchange heat with these thermoelectric elements (12, 13);
A heat exchange member (22, 32) provided so as to be able to exchange heat with the electrode member (15) and the air;
A film-like sealing member (14) having an opening hole (14c) formed between the electrode member (15) and the heat exchange member (22, 32);
The electrode member (15) and the heat exchange member (22, 32) are bonded to each other by a conductive adhesive (16) provided in the opening hole (14c),
The electrode member (15) and the thermoelectric element (12, 13) are bonded to each other by a conductive adhesive (16),
The heat exchange member (22, 32) is formed with a portion of the sealing member (14) that is disposed opposite to the outer peripheral portion of the opening hole (14c),
The thermoelectric conversion device, wherein the heat exchange member (22, 32) and the sealing member (14) are fixed to each other at the site. A thermoelectric conversion device that is arranged in an air passage and cools or heats the air by exchanging heat with air flowing in the air passage,
Thermoelectric elements (12, 13) including a P-type thermoelectric element (12) and an N-type thermoelectric element (13);
The P-type thermoelectric element (12) and the N-type thermoelectric element (13) are electrically connected to each other, and an electrode member (15) provided to be able to exchange heat with these thermoelectric elements (12, 13);
A heat exchange member (22, 32) provided so as to be able to exchange heat with the electrode member (15) and the air;
A film-like sealing member (14) having an opening hole (14c) formed between the electrode member (15) and the heat exchange member (22, 32);
The electrode member (15) and the heat exchange member (22, 32) are bonded to each other by a conductive adhesive (16) provided in the opening hole (14c),
The electrode member (15) and the thermoelectric element (12, 13) are bonded to each other by a conductive adhesive (16),
The electrode member (15) is formed with a portion of the sealing member (14) disposed opposite to the outer peripheral portion of the opening hole (14c),
The thermoelectric conversion device, wherein the electrode member (15) and the sealing member (14) are fixed to each other at the site. A thermoelectric conversion device that is arranged in an air passage and cools or heats the air by exchanging heat with air flowing in the air passage,
Thermoelectric elements (12, 13) including a P-type thermoelectric element (12) and an N-type thermoelectric element (13);
The P-type thermoelectric element (12) and the N-type thermoelectric element (13) are electrically connected, and the thermoelectric elements (12, 13) and an electrode member (15) provided so as to be able to exchange heat,
A heat exchange member (22, 32) provided so as to be able to exchange heat with the electrode member (15) and the air;
A film-shaped sealing member (14) having an opening (14c) formed between the thermoelectric elements (12, 13) and the electrode member (15);
The thermoelectric elements (12, 13) and the electrode member (15) are bonded to each other by a conductive adhesive (16) provided in the opening hole (14c),
The electrode member (15) and the heat exchange member (22, 32) are bonded to each other by a conductive adhesive (16),
The electrode member (15) is formed with a portion of the sealing member (14) disposed opposite to the outer peripheral portion of the opening hole (14c),
The thermoelectric conversion device, wherein the electrode member (15) and the sealing member (14) are fixed to each other at the site. A thermoelectric conversion device that is arranged in an air passage and cools or heats the air by exchanging heat with air flowing in the air passage,
Thermoelectric elements (12, 13) including a P-type thermoelectric element (12) and an N-type thermoelectric element (13);
The P-type thermoelectric element (12) and the N-type thermoelectric element (13) are electrically connected to each other, and an electrode member (15) provided to be able to exchange heat with these thermoelectric elements (12, 13);
A heat exchange member (22, 32) provided so as to be able to exchange heat with the electrode member (15) and the air;
A film-shaped sealing member (14) having an opening (14c) formed between the thermoelectric elements (12, 13) and the electrode member (15);
The thermoelectric elements (12, 13) and the electrode member (15) are bonded to each other by a conductive adhesive (16) provided in the opening hole (14c),
The electrode member (15) and the heat exchange member (22, 32) are bonded to each other by a conductive adhesive (16),
The thermoelectric element (12, 13) is formed with a portion of the sealing member (14) that is disposed opposite the outer peripheral portion of the opening hole (14c),
The thermoelectric conversion device, wherein the thermoelectric element (12, 13) and the sealing member (14) are fixed to each other at the site.   The thermoelectric conversion device according to any one of claims 1 to 6, wherein the sealing member (14) has an adhesive layer laminated on a resin film.   The thermoelectric conversion device according to claim 7, wherein the sealing member (14) is formed of a coverlay film having an adhesive layer.   The thermoelectric conversion device according to claim 7, wherein the sealing member (14) is formed by laminating a bonding sheet on a resin film.   The thermoelectric conversion device according to any one of claims 1 to 6, wherein the sealing member (14) is a thermoplastic resin film.   11. The sealing member according to claim 7, wherein the sealing member is formed of any one of a polyimide resin, a polyethylene naphthalate resin, and a polyethylene terephthalate resin. 11. The thermoelectric conversion device as described.   The sealing member (14) includes a bonding portion between the thermoelectric element (12, 13) and the electrode member (15), a bonding portion between the electrode member (15) and the heat exchange member (22, 32), Alternatively, a seal member (17) is applied to a part of or the entire surface of the thermoelectric element (12, 13) and the heat exchange member (22, 32) so that any one of the adhesion portions is not exposed to the outside. The thermoelectric conversion device according to any one of claims 1 to 9, wherein the thermoelectric conversion device is characterized.

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