WO2002021056A1 - Heat exchanger for stirling refrigerating machine, heat exchanger body, and method of manufacturing heat exchanger body - Google Patents
Heat exchanger for stirling refrigerating machine, heat exchanger body, and method of manufacturing heat exchanger body Download PDFInfo
- Publication number
- WO2002021056A1 WO2002021056A1 PCT/JP2001/007515 JP0107515W WO0221056A1 WO 2002021056 A1 WO2002021056 A1 WO 2002021056A1 JP 0107515 W JP0107515 W JP 0107515W WO 0221056 A1 WO0221056 A1 WO 0221056A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- corrugated fin
- main body
- annular corrugated
- annular
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
- F02G1/053—Component parts or details
- F02G1/055—Heaters or coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D17/00—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/105—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being corrugated elements extending around the tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/01—Geometry problems, e.g. for reducing size
Definitions
- Heat exchanger for Stirling refrigerator Description Heat exchanger for Stirling refrigerator, heat exchanger body, and method for manufacturing heat exchanger body
- the present invention relates to a heat exchanger body such as a heat absorber and a radiator provided in a Stirling refrigerator, a heat exchanger thereof, and a method of manufacturing the heat exchanger body.
- FIG. 29 is a diagram schematically showing a side cross section of a free piston type Stirling refrigerator.
- a heat absorber 2 which is a low temperature part
- a regenerator 3 which is a high temperature part
- Each of the heat absorber 2 and the radiator 4 is a heat exchanger body in which the heat exchangers 22 and 42 are attached to the inner peripheral surface on one end side of the tubular main bodies 21 and 41, respectively.
- Reference numerals 2 and 42 are adjacent to the regenerator 3 in the cylinder 1.
- a displacer 6 fixed to one end of the display salod 5 and a biston 7 penetrated by the display salad 5 are provided.
- the other end of the display salod 5 is connected to a spring 8.
- the displacer 6 and the bistone 7 form an expansion space 9 inside the heat absorber 2 and a compression space 10 inside the heat radiator 4.
- the expansion space 9 and the compression space 10 communicate with each other by the regenerator 3 to form a closed circuit.
- the operation of this free-biston type stirling refrigerator will be described.
- the piston 7 reciprocates at a predetermined cycle in the axial direction of the cylinder 1 by external power such as a linear motor (not shown).
- a working gas such as helium is previously sealed in the compression space 10.
- the working gas in the compression space 10 When the working gas in the compression space 10 is compressed by the movement of the biston 7, the working gas is guided to the expansion space 9 through the regenerator 3 via the heat exchanger 42 of the radiator 4 (see FIG. , Dotted arrow A). At this time, the working gas that generated heat by compression is The heat is exchanged with the external air in 2 to release the heat, and the heat passes through the regenerator 3 to receive the cold stored in the regenerator 3 in advance and is precooled.
- the displacer 6 When the working gas flows into the expansion space 9, the displacer 6 is pushed rightward against the spring 8, so that the working gas expands and generates cold heat. When the working gas expands to some extent, the displacer 6 is pushed back in the opposite direction by the return force of the spring 8.
- the working gas in the expansion space 9 passes through the heat exchanger 22 of the ripening device 2, passes through the regenerator 3, and moves again to the compression space 10 (solid arrow A 'in the figure).
- the working gas is heat-exchanged with the external air in the heat exchanger 22 to absorb the heat, and passes through the regenerator 3 to receive the heat stored in the regenerator 3 and is preheated. You. Then, the working gas that has returned to the compression space 10 is again compressed by the biston 7.
- the amount of heat absorbed by the heat exchanger 22 of the heat absorber 2 and the amount of heat released by the heat exchanger 42 of the radiator 4 be larger. This is because the efficiency of the pre-cooling and pre-heating of the regenerator 3 with respect to the working gas is improved, so that the load on the regenerator 3 can be reduced, and the refrigeration performance of the Stirling refrigerator can be improved.
- radiator 4 which is the high-temperature side heat exchanger of the above-described Stirling refrigerator
- the radiator 4 and its heat exchanger 42 will be described, but the heat absorber 2 and its heat exchanger 22, which are the low-temperature side heat exchangers, have the same configuration.
- this heat exchanger 42 is an annular corrugated fin 42 1 formed by forming a corrugated thin plate into a cylindrical shape.
- a large number of V-shaped grooves 421a extending linearly along the axial direction are formed at regular intervals, and have a jagged shape.
- the portion of the radiator 4 protruding toward the center of the main body 41 is defined as the bottom 4 21 b of each groove 4 21 a, and the portions protruding toward the inner peripheral surface of the main body 41 are adjacent to each other.
- the diameter of the circle (the outer diameter of the annular corrugated fin 4 21) formed by smoothly connecting the tops 4 2 1 c and the inner diameter of the main body 4 1 are almost the same.
- the main body 41 and the annular corrugated fin 42 1 are arranged such that their axes are concentric.
- FIG. 31 is an enlarged view of an essential part of the annular corrugated fin 4 21 as viewed from the axial direction, and shows a state where it is fixed with an adhesive.
- the adhesive 11 is spread thinly on the inner peripheral surface of the main body 41, and the annular corrugated fins 42 21 are inserted there. Then, the adhesive 11 is dried while the annular corrugated fin 4 21 is held at a predetermined position for a while.
- FIG. 32 shows a state of being fixed with solder.
- soldering first, the annular corrugated fin 421 is inserted into the main body 41. Then, while holding the annular corrugated fins 421 in a predetermined position, soldering is performed on a portion where the inner peripheral surface of the main body 41 and the top portion 421c of the annular corrugated fins 421 are in contact with or close to each other. Apply 1 2.
- a heat exchanger for a Stirling refrigerator of the present invention comprises: an annular corrugated fin obtained by forming a thin plate having a number of grooves formed by corrugation into a cylindrical shape so that the grooves are parallel to an axial direction;
- the annular corrugated fin is formed integrally with an inner ring-shaped member that is in contact with the inner periphery.
- annular corrugated fins and the inner ring-shaped member are integrated, Their contact area increases, and they show good thermal conductivity.
- the integration facilitates handling of the heat exchanger and enables replacement and repair. Therefore, it is very economical and recyclable.
- bonding means such as brazing or soldering, for the integration.
- the heat exchanger body of the present invention is obtained by inserting the above heat exchanger for a Stirling refrigerator into the hollow of the tubular main body.
- the heat exchanger can be attached to the main body by crimping without bonding or welding.
- at least one end of the main body is formed with a taper such that the wall thickness becomes thinner toward the end along the axial direction, the penetration may be reduced.
- corrugated projections are formed in close contact with each other and are arranged at equal intervals as a whole, and corresponding to these projections, a corrugated recess is formed on one surface of the main body in the axial direction.
- a straight corrugated fin in which both ends of the inverted V-shaped groove at both ends are longer than the oblique side of the V-shaped groove between them is rounded into a cylindrical shape, and the ends are brought into contact with each other.
- the protruding portions formed at the ends of the both ends and protruding in the radial direction from the outer periphery of the annular corrugated fin are fitted into grooves extending in the axial direction on the inner surface of the main body. This prevents the position of the heat exchanger in the inside from shifting in the circumferential direction.
- the heat exchanger body for example, a tubular introduction member tapered such that one end has substantially the same inner diameter as the main body and the wall thickness becomes thinner toward the other end is obtained by using the one end.
- a method of detachably attaching the heat exchanger for the Stirling refrigerator to the main body in the axial direction from the other end of the introduction member can be considered.
- the shape of the surrounding changes, so that the contact area with the inner surface of the main body increases. Therefore, the heat transfer efficiency of the annular corrugated fin is improved, and a heat exchanger body having excellent heat exchange performance can be provided.
- the heat exchanger for a Stirling refrigerator of the present invention comprises: a ring-shaped korgut fin in which a thin plate having a large number of grooves formed by corrugating is formed into a cylindrical shape so that the grooves are parallel to the axial direction; It is formed by integrating an outer ring-shaped member in contact with the outer periphery of the corrugated fin.
- annular corrugated fins and the outer ring-shaped member When these annular corrugated fins and the outer ring-shaped member are integrated, their contact area increases, and good thermal conductivity is exhibited. In addition, the integration facilitates handling of the heat exchanger and enables replacement and repair. Therefore, it is very economical and recyclable. In addition, it is preferable to apply bonding means, such as brazing or soldering, for the integration.
- the heat exchanger body of the present invention is obtained by inserting the above heat exchanger for a Stirling refrigerator into the hollow of the tubular main body.
- the heat exchanger can be attached to the main body by crimping without bonding or welding.
- at least one end of the main body is formed with a taper such that the wall thickness becomes thinner toward the end along the axial direction, the penetration may be reduced.
- the annular corrugated fin is formed by rolling a straight corrugated fin in which V-shaped grooves are continuously connected into a cylindrical shape, and forming one end of the V-shaped groove at one end and an inverted V-shaped groove at the other end. Can be easily manufactured by engaging and connecting with the end sides of.
- a straight corrugated fin in which a V-shaped groove continuously extends is rounded into a cylindrical shape, and the end of the V-shaped groove at one end and the end of the inverted V-shaped groove at the other end are joined.
- the surfaces may be connected by spot welding to each other.
- a straight corrugated fin in which V-shaped grooves are continuously connected is rounded into a cylindrical shape, and the end of the V-shaped groove at one end and the end of the inverted V-shaped groove at the other end are connected to each other.
- the connection may be made by bonding the surfaces.
- a straight corrugated fin having a continuous V-shaped groove is rolled into a cylindrical shape, and the end of the V-shaped groove at one end and the end of the inverted V-shaped groove at the other end are mutually joined.
- the surfaces may be joined by applying a soldering to the surface.
- a straight corrugated fin in which a V-shaped groove continuously extends is rounded into a cylindrical shape, and the opposite sides of the inverted V-shaped groove at both ends are held so that the surfaces thereof are in contact with each other.
- the connecting portions may be connected by attaching a joining member having a U-shaped cross section to the tip of the contact portion.
- a straight corrugated fin in which V-shaped grooves are continuously connected is rounded into a cylindrical shape, and one end of the inverted V-shaped groove is formed on one end of the straight corrugated fin from one side to the other side.
- the slit formed on the other side of the linear corrugated fin from one side to the other side of the inverted V-shaped groove at the other end of the linear corrugated fin. May be connected.
- FIG. 1 is an external perspective view of a radiator according to a first embodiment of the present invention.
- FIG. 2A is an external perspective view showing a heat exchanger of the radiator.
- FIG. 2B is an exploded perspective view of the heat exchanger.
- FIG. 3 is an enlarged plan view of a part of the heat exchanger viewed from an axial direction.
- FIG. 4 is a schematic vertical sectional view of the main body of the radiator and the heat exchanger.
- FIG. 5 is an enlarged plan view of a part of the radiator viewed from the axial direction.
- FIG. 6A is a plan view showing a linear corrugated fin.
- FIG. 6B is an enlarged plan view showing a state in which the linear korgut fins are rounded and both ends are brought close to each other.
- FIG. 6C is an enlarged plan view showing a part of the completed annular corrugated fin.
- FIG. 7 is an enlarged plan view of a part of the radiator according to the second embodiment of the present invention as viewed from the axial direction.
- FIG. 8A is a plan view showing a straight corrugated fin.
- FIG. 8B is an enlarged plan view showing a state where the straight corrugated fin is rolled and both ends are brought close to each other.
- FIG. 8C is an enlarged plan view showing a part of the completed annular corrugated fin.
- FIG. 9 is an enlarged plan view of a part of the radiator according to the third embodiment of the present invention as viewed from the axial direction.
- FIG. 10A is a plan view showing a linear korgut fin.
- FIG. 10B is an enlarged plan view showing a state where the straight corrugated fins are rounded and both ends are brought close to each other. '
- FIG. 10C is an enlarged plan view showing a part of the completed circular corge tofin.
- FIG. 11 is an enlarged plan view of a radiator according to a fourth embodiment of the present invention as viewed from the axial direction.
- FIG. 12A is a plan view showing a straight corrugated fin.
- FIG. 12B is an enlarged plan view showing a state in which the straight corrugated fins are rolled and both ends are brought close to each other.
- FIG. 12C is an enlarged plan view showing a part of the completed annular corrugated fin.
- FIG. 13 is an enlarged plan view of a part of a radiator according to a fifth embodiment of the present invention as viewed from the axial direction.
- FIG. 14A is a plan view showing a straight corrugated fin.
- FIG. 14B is an enlarged plan view showing a state where the straight corrugated fins are rolled and both ends are brought close to each other.
- FIG. 14C is an enlarged plan view showing a part of the completed annular corrugated fin.
- FIG. 15 is an enlarged plan view of a part of a radiator according to a sixth embodiment of the present invention as viewed from the axial direction.
- FIG. 16A is a plan view showing a straight corrugated fin.
- FIG. 16B is an enlarged plan view showing a state where the straight corrugated fins are rolled and both ends are brought close to each other.
- FIG. 16C is an enlarged plan view showing a part of the completed annular corrugated fin.
- FIG. 17 is an enlarged perspective view showing a main part of FIG. 16B.
- FIG. 18 is an enlarged plan view of a radiator according to a seventh embodiment of the present invention as viewed from the axial direction.
- FIG. 19A is a plan view showing a straight corrugated fin.
- FIG. 19B is a plan view showing an annular corrugated fin formed by rolling a straight corrugated fin and contacting both ends.
- FIG. 19C is a top view of the cylindrical main body.
- FIG. 20 is an external perspective view of a part of a radiator according to an eighth embodiment of the present invention.
- FIG. 21A is an external perspective view showing a heat exchanger of the radiator.
- FIG. 21B is an exploded perspective view of the heat exchanger.
- FIG. 22 is an enlarged plan view of a part of the heat exchanger viewed from the axial direction.
- FIG. 23 is a schematic longitudinal sectional view of the radiator body and the heat exchanger.
- FIG. 24 is an enlarged plan view of a part of the radiator according to the ninth embodiment of the present invention as viewed from the axial direction.
- FIG. 25A is a cross-sectional view before the heat exchanger of the radiator is inserted from the introduction member side. ⁇
- FIG. 25B is a cross-sectional view after the insertion.
- FIG. 26 is a plan view of a radiator according to a tenth embodiment of the present invention.
- FIG. 27 is a plan view of the heat exchanger of the radiator.
- FIG. 28 is a plan view of a cylindrical main body.
- FIG. 29 is a schematic cross-sectional view of a conventional free piston type Stirling refrigerator.
- FIG. 30 is an external perspective view of a radiator that is a conventional heat exchanger body.
- FIG. 31 is an enlarged plan view of a part of a conventional heat exchanger as viewed from the axial direction.
- FIG. 32 is an enlarged plan view of a part of another conventional heat exchanger viewed from the axial direction.
- radiator 4 and its heat exchanger 42 Members having the same names as those of the prior art shown in FIGS. 29 to 32 are denoted by the same reference numerals.
- the radiator 4 and the heat exchanger 42 may be replaced with the heat absorber 2 and the heat exchanger 22 in the description.
- FIG. 1 is an external perspective view of a radiator 4 which is a heat exchanger body of the present embodiment.
- FIG. 2A is an external perspective view showing the heat exchanger 42 of the radiator 4, and
- FIG. 2B is an exploded perspective view thereof.
- FIG. 3 is an enlarged plan view of a part of the heat sink seen from the axial direction.
- This heat exchanger 42 comprises an annular corrugated fin 4 21 and an inner ring-shaped member 4 22.
- the annular corrugated fins 4 21 are formed by forming a corrugated thin plate into a cylindrical shape so that each groove 4 21 a is parallel to the axial direction.
- the inner ring-shaped member 422 is a cylindrical body made of a material having good thermal conductivity.
- FIG. 6A to 6C show a manufacturing procedure of the annular corrugated fin '421
- FIG. 6A is a plan view showing a linear corrugated fin 420
- FIG. 6C is an enlarged plan view showing a state where the corrugated fins 420 are rounded and both ends are brought close to each other
- FIG. 6C is an enlarged plan view showing the completed annular corrugated fins 42 1.
- one end of a linear corrugated fin 420 that is continuously connected to a V-shaped cross-sectional groove 420e is a V-shaped groove 420a, and the other end is The inverted V-shaped groove is 420 b.
- the length 4 2 0 c of the end of the groove 4 2 0 a and the length 1 of the end 4 2 0 d of the groove 4 2 0 b are both the top 4 2 0 f and the top 4 2 of the groove 4 2 0 e between them. It is machined shorter than the length L of the hypotenuse between 0 f.
- the straight corrugated fins 420 are bent in the directions of the arrows F1 and F2 in FIG. 6A to form a cylindrical shape, and as shown in FIG. 6B, the end side 420c and the end side 420d are formed. 6c, and their end sides 420c and 420d are hooked together as shown in Fig. 6C to form an annular corrugated fin 421.
- the annular corrugated fins 421, 21 caught in an attempt to return to the original linear state are pulled together by the ends 4200c, 420d, and the annular corrugated fins 421 are formed into an annular shape. Will be maintained. 4 2 1d is the connection.
- an inner ring-shaped member 422 is provided around the inner periphery of the annular corrugated fin 421 with the shafts of the ring (the shaft of the annular corrugated fin 421 and the ring-shaped member).
- 4 2 2 axes are concentric.
- the diameter of the circle (the inner diameter of the annular corrugated fin 4 21) formed by smoothly connecting the bottoms 4 2 1 b of the annular corrugated fins 4 21 and the outer diameter of the inner ring-shaped member 4 2 2 Is almost equal to
- annular corrugated fin 42 1 and the inner ring-shaped member 422 are joined by an annular brazing material 13. That is, as shown in Fig. 2B, the annular corrugated fin When the mouthpiece 13 is heated by placing the mouthpiece 13 on the portion where the inner ring-shaped member 4 2 2 comes into contact with the inner ring-shaped member 4, the melted mouthpiece 1 3 will follow the bottom 4 2 1 b of the annular corrugated fin 4 2 1 Down.
- the brazing material 13 spreads almost uniformly to the portion where the annular corrugated fins 4 21 and the inner ring-shaped member 4 2 2 come into contact. Then, as the brazing material 13 is hardened, the annular corrugated fins 42 1 and the inner ring-shaped members 42 2 are joined and integrated. Although brazing has been described here, soldering may also be performed.
- the heat exchanger 42 described above is inserted into the main body 41 shown in FIG.
- the configuration for inserting the heat exchanger 42 into the main body 41 is as follows. That is, as shown in FIG. 4 which is a schematic cross-sectional view of the main body 41 and the heat exchanger 42, both ends of the main body 41 are tapered so that the wall thickness becomes thinner toward the end along the axial direction. (Taper portion 41a ).
- the outer diameter of the heat exchanger 42 (the outer diameter of the annular corrugated fin 42 1)
- the heat exchanger 42 when the heat exchanger 42 is inserted from the end of the main body 41, the heat exchanger 42 can be easily inserted at first with a small force. Then, since the inner diameter of the main body 41 gradually decreases and finally becomes smaller than the outer diameter R 1 of the heat exchanger 42, the heat exchanger 42 is inserted while gradually applying a large force. . In this way, the heat exchanger 42 can be easily inserted into the main body 41.
- each bottom 4 2 1 b of the annular corrugated fin 4 2 1 is set up on the inner ring-shaped member 4 2 2, it is stored in the main body 4 1 having an inner diameter R 3 smaller than the outer diameter R 1.
- the formed annular corrugated fins 42 1 are in a state where the respective grooves 4 21 a are expanded, and an elastic force is generated radially outward.
- the heat exchanger 42 Since the annular corrugated fin 42 1 has an outer diameter R 1 and a depth of each groove 4 21 a which is constant in the axial direction, the heat exchanger 42 is formed on the inner periphery of the main body 41 by the elastic force. It is uniformly pressed against the surface and fixed in position. At this time, the annular corrugated fins 4 2 1 And the inner ring-shaped member 4 2 2 are firmly fixed and do not deform.
- the heat exchanger 42 can be fixed at an appropriate position in the main body 41 without using an adhesive or solder, so that the process is simplified and the production cost is reduced. it can. Also, the heat exchange performance of the heat exchanger body is stabilized.
- the heat exchanger 42 can be pulled out from the main body 41 and taken out. Therefore, since it can be easily replaced as needed, the problem of economical burden on the user and the problem of recycling at the time of repair can be solved.
- the heat exchanger 42 used in the present embodiment integrates the annular corrugated fin 4 21 and the inner ring-shaped member 4 22 with brazing, soldering or the like, the heat exchanger 42 is configured separately. Also show good thermal conductivity. Therefore, the heat exchange efficiency is improved.
- FIG. 7 is an enlarged plan view of the radiator 4 according to the present embodiment as viewed from the axial direction.
- the radiator 4 of the present embodiment is, like the first embodiment, a heat exchanger 4 comprising an annular corrugated fin 42 1 and an inner ring-shaped member 4 22 attached to the inside thereof. 2 and a cylindrical main body 4 1 on which the heat exchanger 42 is mounted.
- FIG. 8A to 8C show a manufacturing procedure of the cyclic corrugated fin 421
- FIG. 8A is a plan view showing the linear corrugated fin 420
- FIG. 8B is a linear corrugated fin 420
- FIG. 8C is an enlarged plan view showing a state where both ends are brought closer by rounding 420
- FIG. 8C is an enlarged plan view showing a part of the completed annular corrugated fin 421.
- one end of a linear corrugated fin 420 in which V-shaped grooves 420e are continuously connected is a V-shaped groove 420a, and the other end is a V-shaped groove 420a.
- the inverted V-shaped groove is 420 b.
- the length L 2 of the edge 4 220 c of the groove 420 a and the edge 420 d of the groove 420 b is the same as the top portion 420 f of the groove 420 e therebetween. It is machined shorter than the length L of the hypotenuse between the tops 420 f.
- an inner ring-shaped member 422 is in contact with the inner periphery of the annular corrugated fin 421 so that their axes are concentric.
- the diameter of the circle (inner diameter of the annular corrugated fin 42 1) formed by smoothly connecting the bottoms 4 2 1 b of the annular corrugated fin 4 21 and the outer diameter of the inner ring-shaped member 4 2 2 It is almost equal to the diameter.
- annular corrugated fins 4 21 and the inner ring-shaped members 4 2 2 are joined by an annular brazing material 13. That is, as shown in FIG. 2B, when the mouth material 13 is placed at a portion where the annular corrugated fin 42 1 and the inner ring-shaped member 42 2 are in contact with each other and ripened, the melted mouth material 13 becomes It flows down along the bottom 4 2 1 b of the annular corrugated fin 4 2 1.
- the brazing material 13 spreads substantially uniformly around the portion where the annular corrugated fins 4 21 and the inner ring-shaped members 4 2 2 are in contact.
- the brazing material 13 is hardened, the annular corrugated fin 42 1 and the inner ring-shaped member 42 2 are joined and integrated.
- the above-described heat exchanger 42 is inserted into the main body 41 shown in FIG.
- the configuration for introducing the heat exchanger 42 into the main body 41 is as follows. That is, as shown in FIG. 4 which is a schematic cross-sectional view of the main body 41 and the heat exchanger 42, both ends of the main body 41 are tapered so that the wall thickness becomes thinner toward the end along the axial direction. It is formed (tapered portion 41a).
- this heat exchanger 42 when this heat exchanger 42 is inserted from the end of the main body 41, it is initially small.
- the heat exchanger 42 can be easily inserted with a small force.
- the inner diameter of the main body 41 gradually decreases and finally becomes smaller than the outer diameter R1 of the heat exchanger 42, the heat exchanger 42 is inserted while gradually applying a large force. Go. In this way, the heat exchanger 42 can be easily inserted into the main body 41.
- each bottom portion 4 21 b of the annular corrugated fin 4 21 is fixed to the inner ring-shaped member 4 22, the main body 4 1 having an inner diameter R 3 smaller than its outer diameter R 1 is formed.
- the stored corrugated fins 4 2 1 are in a state where the grooves 4 2 1 a are expanded and elastic force is generated radially outward.
- the annular corrugated fins 42 1 have an outer diameter R 1 and the depth of each groove 4 21 a are constant in the axial direction, the mature exchanger 42 is formed on the inner periphery of the main body 41 by the elastic force. It is uniformly pressed against the surface and fixed in position. At this time, the annular corrugated fin 42 1 and the inner ring-shaped member 42 2 are firmly fixed and do not deform.
- the heat exchanger 42 can be fixed at an appropriate position in the main body 41 without using an adhesive or solder, thereby simplifying the process and achieving a reduction in manufacturing cost. it can. Also, the heat exchange performance of the heat exchanger body is stabilized.
- the heat exchanger 42 can be pulled out from the main body 41 and taken out. Therefore, since it can be easily replaced as needed, the problem of economical burden on the user and the problem of recycling at the time of repair can be solved.
- the heat exchanger 42 used in the present embodiment is formed separately from the annular corrugated fin 42 1 by integrating the inner ring-shaped member 42 2 with solder or solder. It shows better thermal conductivity than Therefore, the heat exchange efficiency is improved.
- FIG. 9 is a plan view of a part of the radiator 4 according to the present embodiment as viewed from the axial direction.
- the radiator 4 of the present embodiment includes a heat exchanger 42 including an annular corrugated fin 42 1 and an inner ring-shaped member 42 2 attached to the inside thereof, similarly to the first embodiment. And a cylindrical main body 41 on which the heat exchanger 42 is mounted.
- FIG. 10A to 10B show a manufacturing procedure of the annular corrugated fin 421
- FIG. 10A is a plan view showing a linear corrugated fin 420
- FIG. 10C is an enlarged plan view showing a state where the straight corrugated fins 420 are rounded and both ends are brought close to each other
- FIG. 10C is an enlarged plan view showing a part of the completed annular corrugated fins 42 1.
- one end of a linear colgate fin 420 in which V-shaped cross-sectional grooves 420e are continuously connected is a V-shaped groove 420a, and the other end is The inverted V-shaped groove is 420 b.
- the length L 3 of the edge 4 20 c of the groove 4 20 a and the edge 4 2 0 d of the groove 4 20 b are both equal to the top 4 2 0 f of the groove 4 2 0 e therebetween. It is machined shorter than the length L of the hypotenuse between the tops 420 f.
- the colgate fins 420 are rounded into a cylindrical shape (Fig. 10B), and the end surfaces 420c and the application surface of the adhesive 16 at the end edges 420d are brought into contact with each other and held for a while.
- an annular korgut fin 421 as shown in FIG. 10C. 4 2 1 f is the bonded portion.
- an inner ring-shaped member 422 is in contact with the inner periphery of the annular corrugated fin 421 such that their axes are concentric.
- the diameter of the circle (the inner diameter of the annular corrugated fin 42 1) formed by smoothly connecting the bottoms 4 2 1 b of the annular corrugated fin 4 21 and the outer diameter of the inner ring-shaped member 4 2 2 Is almost equal to
- annular corrugated fins 4 21 and the inner ring-shaped members 4 2 2 are joined by an annular brazing material 13. That is, as shown in FIG. 2B, when the mouthpiece 13 is placed on the portion where the annular corrugated fin 42 1 and the inner ring-shaped member 42 2 are in contact with each other and heated, the melted mouthpiece 13 becomes annular. It flows down along the bottom 4 2 1b of the corge tofin 4 2 1.
- the brazing material 13 spreads almost uniformly to the portion where the annular corrugated fins 4 21 and the inner ring-shaped member 4 2 2 come into contact.
- the brazing material 13 hardens, the annular corrugated fins 42 1 and the inner ring-shaped members 4 2 2 And are integrated.
- the above-described heat exchanger 42 is inserted into the main body 41 shown in FIG.
- the configuration for introducing the heat exchanger 42 into the main body 41 is as follows. That is, as shown in FIG. 4 which is a schematic sectional view of the main body 41 and the heat exchanger 42, both ends of the main body 41 are tapered so that the wall thickness becomes thinner toward the end along the axial direction. Formed (tapered part 4 1 a) 0
- the heat exchanger 42 when the heat exchanger 42 is inserted from the end of the main body 41, the heat exchanger 42 can be easily inserted at first with a small force. Then, the inner diameter of the main body 41 gradually decreases, and eventually becomes smaller than the outer diameter R 1 of the heat exchanger 42, so that the heat exchanger 42 is inserted while gradually applying a large force. . In this way, the heat exchanger 42 can be easily inserted into the main body 41.
- the bottoms 4 2 1 b of the annular corrugated fins 4 2 1 are fixed to the inner ring-shaped member 4 2 2, they are housed in the main body 4 1 having an inner diameter R 3 smaller than the outer diameter R 1.
- the formed annular corrugated fins 42 1 are in a state where the respective grooves 4 21 a are expanded, and an elastic force is generated radially outward.
- the heat exchanger 42 Since the annular corrugated fin 42 1 has an outer diameter R 1 and a depth of each groove 4 21 a which is constant in the axial direction, the heat exchanger 42 is formed on the inner periphery of the main body 41 by the elastic force. It is uniformly pressed against the surface and fixed in position. At this time, the annular corrugated fins 4 21 and the inner ring-shaped members 4 2 2 are firmly fixed and do not deform.
- the heat exchanger 42 can be fixed at an appropriate position in the main body 41 without using an adhesive or solder, so that the process is simplified and the production cost is reduced. it can. Also, the heat exchange performance of the heat exchanger body is stabilized.
- the heat exchanger 42 can be pulled out from the main body 41 and taken out. Therefore, it can be easily replaced if necessary. It can solve the problem of economical burden on the user during repair and recycling.
- the heat exchanger 42 used in the present embodiment integrates the annular corrugated fin 4 21 and the inner ring-shaped member 4 22 with brazing, soldering or the like, the heat exchanger 42 is configured separately. Also show good thermal conductivity. Therefore, the heat exchange efficiency is improved.
- FIG. 11 is a plan view of a part of the radiator 4 according to the present embodiment as viewed from the axial direction.
- the radiator 4 of the present embodiment is, similarly to the first embodiment, a heat exchanger 4 composed of an annular corrugated fin 4 21 and an inner ring-shaped member 4 22 attached to the inside thereof. 2 and a cylindrical main body 4 1 on which the heat exchanger 42 is mounted.
- FIGS. 12A to 12C show the manufacturing procedure of the annular corrugated fins 421
- FIG. 12A is a plan view showing the linear corrugated fins 420
- FIG. FIG. 12C is an enlarged plan view showing a state where the straight corrugated fins 420 are rounded and both ends are brought close to each other
- FIG. 12C is an enlarged plan view showing a part of the completed annular corrugated fins 42 1.
- one end of a linear colgate fin 420 that continuously connects V-shaped grooves 420e is a V-shaped groove 420a, and the other end is The inverted V-shaped groove is 420 b.
- both the length L 4 of the edge 4 20 c of the groove 4 20 a and the edge 4 20 d of the groove 4 20 b are the same as the top 4 2 0 f of the groove 4 2 0 e therebetween. It is machined shorter than the length L of the hypotenuse between the tops 420 f.
- the inner periphery of the annular corrugated fin 4 21 The ring-shaped members 422 are in contact with each other so that their axes are concentric.
- the diameter of the circle (the inner diameter of the annular corrugated fin 42 1) formed by smoothly connecting the bottoms 4 2 1 b of the annular corrugated fins 4 21 and the outer diameter of the inner ring-shaped member 4 2 2 Is almost equal to
- annular corrugated fins 42 1 and the inner ring-shaped member 422 are joined by an annular brazing material 13. That is, as shown in FIG. 2B, when the mouthpiece 13 is placed on the portion where the annular corrugated fin 42 1 and the inner ring-shaped member 42 2 are in contact and heated, the melted mouthpiece 13 becomes It flows down along the bottom city 4 2 1b of the circular corrugated fin 4 2 1.
- the brazing material 13 spreads substantially uniformly around the portion where the annular corrugated fins 4 21 and the inner ring-shaped members 4 2 2 are in contact. Then, as the brazing material 13 is hardened, the annular corrugated fin 42 1 and the inner ring-shaped member 42 2 are joined and integrated. Although brazing has been described here, soldering may also be performed.
- the above-described heat exchanger 42 is inserted into the main body 41 shown in FIG.
- the configuration for introducing the heat exchanger 42 into the main body 41 is as follows. That is, as shown in FIG. 4 which is a schematic cross-sectional view of the main body 41 and the heat exchanger 42, both ends of the main body 41 are tapered so that the wall thickness becomes thinner toward the end along the axial direction. It is formed (tapered portion 41a).
- the outer diameter of the heat exchanger 42 (the outer diameter of the annular corrugated fin 42 1)
- the heat exchanger 42 when the heat exchanger 42 is inserted from the end of the main body 41, the heat exchanger 42 can be easily inserted at first with a small force. Then, since the inner diameter of the main body 41 gradually decreases and finally becomes smaller than the outer diameter R1 of the heat exchanger 42, the heat exchanger 42 is inserted while gradually applying a large force. Go. In this way, the heat exchanger 42 can be easily inserted into the main body 41.
- each bottom 4 2 1 b of the annular corrugated fin 4 2 1 is an inner ring-shaped member. Since it is fixed to 4 2 2, the annular corrugated fin 4 2 1 housed in the main body 4 1 with an inner diameter R 3 smaller than its outer diameter R 1 is in a state where each groove 4 2 1 a is expanded. And an elastic force is generated radially outward.
- the heat exchanger 42 Since the outer diameter R 1 and the depth of each groove 4 21 a of the annular corrugated fin 42 1 are constant in the axial direction, the heat exchanger 42 is attached to the main body 41 by the above-mentioned natural force. It is evenly pressed against the inner peripheral surface and fixed in position. At this time, the annular corrugated fins 4 21 and the inner ring-shaped members 4 2 2 are firmly fixed and do not deform.
- the heat exchanger 42 can be fixed at an appropriate position in the main body 41 without using an adhesive or solder, so that the process is simplified and the production cost is reduced. it can. Also, the heat exchange performance of the heat exchanger body is stabilized.
- the heat exchanger 42 can be pulled out from the main body 41 and taken out. Therefore, since it can be easily replaced as needed, the problem of economical burden on the user and the problem of recycling at the time of repair can be solved.
- the heat exchanger 42 used in the present embodiment integrates the annular corrugated fin 42 1 and the inner ring-shaped member 42 2 with a mouth or solder, the heat exchanger 42 is configured separately. It shows better conductivity than it does. Therefore, the heat exchange efficiency is improved.
- FIG. 13 is a plan view of a part of the radiator 4 according to the present embodiment as viewed from the axial direction.
- the radiator 4 of the present embodiment is, similarly to the first embodiment, a heat exchanger 4 2 composed of an annular corrugated fin 4 21 and an inner ring-shaped member 4 2 2 brazed inside thereof. And a cylindrical main body 41 to which the heat exchanger 42 is attached.
- FIGS. 14A to 14C show a manufacturing procedure of the annular corrugated fins 421
- FIG. 14A is a plan view showing the linear corrugated fins 420
- FIG. 14C is an enlarged plan view showing a state in which the corrugated fins 420 are rounded and both ends are brought closer
- FIG. 14C is an enlarged plan view showing a part of the completed annular corrugated fins 42.
- one end and the other end of the linear colgate fin 420 where the V-shaped cross-sectional grooves 420e are continuously connected are inverted V-shaped grooves 420b. ing.
- the length L 5 of both ends 4 2 0 c and 4 2 0 d of the grooves 4 2 0 b at both ends is the same as the top 4 2 0 f of the grooves 4 2 0 e between them. It is shorter than the length L of the hypotenuse between the tops 420 f.
- an inner ring-shaped member 42 is in contact with the inner periphery of the annular corrugated fin 42 1 so that their axes are concentric.
- the diameter of the circle (the inner diameter of the annular corrugated fin 42 1) formed by smoothly connecting the bottoms 4 2 1 b of the annular corrugated fins 4 21 and the outer diameter of the inner ring-shaped member 4 2 2 Is almost equal to
- annular corrugated fins 4 21 and the inner ring-shaped members 4 2 2 are joined by an annular brazing material 13. That is, as shown in FIG. 2B, when the mouthpiece 13 is placed on the portion where the annular corrugated fin 42 1 and the inner ring-shaped member 42 2 are in contact with each other and heated, the melted mouthpiece 13 becomes annular. It flows down along the bottom 4 2 1b of the corrugated fin 4 2 1.
- the brazing material 13 spreads substantially uniformly around the portion where the annular corrugated fins 4 21 and the inner ring-shaped members 4 2 2 are in contact. Then, as the brazing material 13 is hardened, the annular korgut fin 42 1 and the inner ring-shaped member 42 2 are joined and integrated. Although brazing has been described here, soldering may also be performed.
- the above-described heat exchanger 42 is inserted into the main body 41 shown in FIG.
- the configuration for introducing the heat exchanger 42 into the main body 41 is as follows. That is, as shown in FIG. 4 which is a schematic cross-sectional view of the main body 41 and the heat exchanger 42, both ends of the main body 41 are formed so that the wall thickness becomes thinner toward the end along the axial direction. A taper is formed (taper portion 41a).
- the outer diameter of the heat exchanger 42 (the outer diameter of the annular corrugated fin 42 1)
- the heat exchanger 42 when the heat exchanger 42 is inserted from the end of the main body 41, the heat exchanger 42 can be easily inserted at first with a small force. Then, since the inner diameter of the main body 41 gradually decreases and finally becomes smaller than the outer diameter R1 of the heat exchanger 42, the heat exchanger 42 is inserted while gradually applying a large force. Go. In this way, the heat exchanger 42 can be easily inserted into the main body 41.
- each bottom 4 2 1 b of the annular corrugated fin 4 2 1 is fixed to the inner ring-shaped member 4 2 2, it is stored in the main body 4 1 having an inner diameter R 3 smaller than its outer diameter R 1.
- the annular corrugated fins 4 21 are in a state where the respective grooves 4 2 1 a are expanded, and an elastic force is generated radially outward.
- the heat exchanger 42 is formed on the inner periphery of the main body 41 by the elastic force. It is uniformly pressed against the surface and fixed in position. At this time, the annular corrugated fins 4 21 and the inner ring-shaped members 4 2 2 are firmly fixed and do not deform.
- the heat exchanger 42 can be fixed at an appropriate position in the main body 41 without using an adhesive or solder, so that the process is simplified and the production cost is reduced. it can. Also, the heat exchange performance of the heat exchanger body is stabilized.
- FIG. 15 is a plan view of a part of the radiator 4 according to the present embodiment viewed from the axial direction.
- the radiator 4 of the present embodiment is, similarly to the first embodiment, a heat exchanger 4 composed of an annular corrugated fin 42 1 and an inner ring-shaped member 4 22 attached to the inside thereof. 2 and a cylindrical main body 4 1 on which the heat exchanger 42 is mounted.
- FIG. 16 shows the manufacturing procedure of the annular corrugated fins 421
- FIG. 16A is a plan view showing the linear corrugated fins 420
- FIG. 16C is an enlarged plan view showing a state in which the both ends are brought close together
- FIG. 16C is an enlarged plan view showing the completed annular corge tofin 421
- FIG. It is a perspective view of a part.
- each of the side edges 420c and 420d has a straight corrugated fin 420 from one side 420g to the other side 420h and another side 420h. There is provided a slit 19 extending from one side to the 20 g side.
- an inner ring-shaped member 422 is in contact with the inner periphery of the vertical corrugated fin 421 so that their axes are concentric.
- the inner diameter of the annular korgut fine 422) and the outer diameter of the inner ring-shaped member 422 are almost equal.
- the annular corrugated fins 4 21 and the inner ring-shaped members 4 2 2 are joined by an annular brazing material 13. That is, as shown in FIG. 2B, when the mouthpiece 13 is placed on a portion where the annular corrugated fin 42 1 and the inner ring-shaped member 42 2 are in contact and heated, the melted mouthpiece 13 becomes It flows down along the bottom 4 2 1 b of the annular corrugated fin 4 2 1.
- the brazing material 13 spreads substantially uniformly around the portion where the annular corrugated fins 4 21 and the inner ring-shaped members 4 2 2 are in contact. Then, as the brazing material 13 is hardened, the annular corrugated fin 42 1 and the inner ring-shaped member 42 2 are joined and integrated. Although brazing has been described here, soldering may also be performed.
- the heat exchanger 42 described above is inserted into the main body 41 shown in FIG.
- the configuration for introducing the heat exchanger 42 into the main body 41 is as follows. That is, as shown in FIG. 4 which is a schematic sectional view of the main body 41 and the mature exchanger 42, both ends of the main body 41 are tapered so that the wall thickness becomes thinner toward the end along the axial direction. Formed (tapered part 4 1 a) 0
- the outer diameter of the heat exchanger 42 (the outer diameter of the annular corrugated fin 42 1)
- the heat exchanger 42 when the heat exchanger 42 is inserted from the end of the main body 41, the heat exchanger 42 can be easily inserted at first with a small force. Then, since the inner diameter of the main body 41 gradually decreases, and eventually becomes smaller than the outer diameter R 1 of the heat exchanger 42, the heat exchanger 42 is inserted while gradually applying a large force. Go. In this way, the heat exchanger 42 can be easily inserted into the main body 41.
- each bottom 4 2 1 b of the annular corrugated fin 4 2 1 is fixed to the inner ring-shaped member 4 2 2, it is stored in the main body 4 1 having an inner diameter R 3 smaller than its outer diameter R 1.
- the annular corrugated fins 421 are in a state in which the grooves 421 a are expanded, and an elastic force is generated radially outward.
- the annular corrugated fin 4 21 has an outer diameter R 1 and a depth of each groove 4 21 a. Since it is constant in the axial direction, the heat exchanger 42 is uniformly pressed against the inner peripheral surface of the main body 41 and fixed in position by the elastic force. At this time, the annular corrugated fins 42 1 and the inner ring-shaped members 42 2 are firmly fixed and do not deform.
- the heat exchanger 42 can be fixed at an appropriate position in the main body 41 without using an adhesive or solder, so that the process is simplified and the production cost is reduced. it can. In addition, the heat exchange performance of the heat exchanger is stabilized.
- the heat exchanger 42 can be pulled out from the main body 41 and taken out. Therefore, since it can be easily replaced as needed, the economic burden on the user at the time of repair and the problem of recycling can be solved.
- the heat exchanger 42 used in the present embodiment integrates the annular corrugated fin 42 1 and the inner ring-shaped member 42 2 with a mouth or solder, the heat exchanger 42 is configured separately. It shows better thermal conductivity than it does. Therefore, the heat exchange efficiency is improved. '
- FIG. 18 is a plan view of the radiator 4 according to the present embodiment as viewed from the axial direction.
- the radiator 4 of the present embodiment is, like the first embodiment, a heat exchanger 4 2 composed of an annular corrugated fin 4 21 and an inner ring-shaped member 4 22 attached to the inside thereof. And a cylindrical main body 41 to which the heat exchanger 42 is mounted.
- FIG. 19A to FIG. 19C show a production procedure of the cyclic corrugated fins 421
- FIG. 19A is a plan view showing a linear corrugated fin 420
- FIG. 19C is a plan view showing an annular corrugated fin 421 formed by rolling the corrugated fins 420 and bringing both ends close together
- FIG. 19C is a top view of the cylindrical main body 41.
- one end and the other end of the linear colgate fin 420 in which the V-shaped groove 420 e continuously extends are inverted V-shaped grooves 420 b It has become.
- the length L 7 of both ends 4 2 0 c and 4 2 0 d of the grooves 4 2 0 b at both ends is the same as the term 4 2 0 f of the grooves 4 2 0 e between them. Length of the hypotenuse between the top 4 20 f and length L Well processed.
- An annular corrugated fin 421 as shown in FIG. 19B is formed by holding a state in which the tips of ⁇ 420 c and the edges 420 d are in contact with each other.
- the distal ends of the side edges 420c and 420d are positioned more radially than the outer periphery of the annular corrugated fin 421 (the circumference of a circle formed by smoothly connecting the tops 4221c).
- a protruding portion 4 21 h protruding outside the frame is formed.
- the inner diameter of the cylindrical body 41 is selected to be substantially equal to the outer diameter of the annular corrugated fin 42. Further, as shown in FIG. 19C, a concave portion 41 a that can be fitted to the protruding portion 421 h of the annular corrugated fin 421 is provided at one location on the inner surface of the outer heat exchanger 3 in the axial direction. It has been extended.
- the annular corrugated fins 42 1 are aligned with the center axis of the main body 41, and the projections 42 21 h are fitted into the concave portions 41 a of the main body and inserted from the axial direction.
- the one end surface of the annular corrugated fin 42 1 is inserted until the open end of the main body 41 is aligned.
- a force trying to return to the original linear corrugated fin 420 is applied to the protruding portion 4 21 h of the annular corrugated fin 4 21, but the protruding portion 4 2 1 h is in the recess 4 a. Since the movement is restricted, the annular corrugated fin 4 21 changes to a force that tries to spread in the radial direction. Therefore, since the annular corrugated fins 42 21 are spread and pressed against the inner surface of the main body 41, the annular corrugated fins 42 can be held at a predetermined position while maintaining the shape. '
- the outer diameter of the cylindrical inner ring-shaped member 422 is selected to be substantially equal to the inner diameter of the annular corrugated fin 421 (diameter of a circle formed by smoothly connecting the grooves 2b). Then, the center of the inner ring-shaped member 422 is aligned with the center axis of the annular corrugated fin 421 in the main body 1 and inserted from the axial direction. Then, the heat exchanger 42 is mounted inside the main body 41 by attaching it to the contact portion between the inner periphery of the annular colgate fin 42 1 and the outer surface of the inner ring-shaped member 42 2 to be integrated. As a result, a radiator 4 as shown in FIG. 18 is obtained.
- FIG. 20 is an external perspective view of a radiator 4 which is a heat exchanger body of the present embodiment.
- FIG. 21A is an external perspective view showing a heat exchanger 42 ′ incorporated in the radiator 4, and
- FIG. 21B is an exploded perspective view thereof.
- the heat exchanger 42 ' is composed of an annular corrugated fin 421, an outer ring-shaped member 42' and a heat exchanger.
- the annular corrugated fin 421 is manufactured by the procedure described in each of the first to seventh embodiments.
- the outer ring-shaped member 4 2 2 ′ is a cylindrical body made of a material having good thermal conductivity and elasticity.
- an outer ring-shaped member 42 2 ′ is in contact with the outer periphery of the annular corrugated fin 42 1 so that their axes are concentric with each other.
- the outer diameter of the annular corrugated fins 42 1 is substantially equal to the inner diameter of the outer ring-shaped member 42 2 ′.
- the annular corrugated fin 42 1 and the outer ring-shaped member 42 2 ′ are similar to the annular corrugated fin 42 1 and the inner ring-shaped member 42 2 of the first embodiment. It is joined and fixed with brazing material 13 or solder.
- the above-described heat exchanger 42 ′ is inserted into the main body 41 shown in FIG. 20 so that the axes are concentric with each other to form the radiator 4.
- the configuration for inserting the heat exchanger 42 into the main body 41 is as follows. That is, as shown in FIG. 23 which is a schematic cross-sectional view of the main body 41 and the heat exchanger 42 ′, both ends of the main body 41 are tapered in the same manner as in the first embodiment (tapered portion 4). 1 a) 0
- the heat exchanger 42 ' can be easily inserted into the main body 41 by the tapered portion 4la.
- the The heat exchanger 42 ' is pressed against the inner peripheral surface of the main body 41 by an elastic force generated in the annular corrugated fin 42 and the outer ring-shaped member 42' and fixed in position.
- the annular corrugated fins 42 1 and the outer ring-shaped members 42 2 ′ are firmly fixed and do not deform.
- the heat exchanger 4 2 ′ can be fixed at an appropriate position in the main body 41 without using an adhesive or solder, and the main body 4 1 and the heat exchanger 4 2 ′ are different from each other. Since it is not fixed, it can be taken out freely. Further, since the annular corrugated fins 42 1 and the outer ring-shaped members 42 2 ′ are integrated, they show better thermal conductivity.
- FIG. 24 is an enlarged plan view of a part of the radiator 4 according to the present embodiment viewed from the axial direction.
- Fig. 25 shows a part of the manufacturing procedure of the radiator 4.
- Fig. 25A is a cross-sectional view before the heat exchanger 42 is inserted from the introduction member 14 side. It is sectional drawing after insertion.
- the cylindrical main body 41 is fixed to the jig 15 together with the introduction member 14 so that the axial direction thereof is substantially horizontal.
- the introduction member 14 provided adjacent to the main body 41 has an outer diameter substantially equal to that of the main body 41, and the inner diameter is substantially equal to the inner diameter of the main body 41 at the joint portion, and increases as the distance from the joint portion increases It has a sectional shape of the inner surface having a tapered portion 14a.
- the annular corrugated fins 421 are formed in an annular shape by rolling the linear corrugated fins 420 and fixing both ends.
- the annular corrugated fins 421 are formed of a highly flexible material which is easily deformed by an external force.
- an inner ring-shaped member 4 22 selected to have an outer diameter slightly larger than the inner diameter is inserted into the annular corrugated fin 4 21 from the axial direction to produce a heat exchanger 42. .
- the heat exchanger 42 is inserted axially from the open end of the introduction member 14.
- the annular corrugated fins 42 1 are pressed from the center to the outside by the inner ring-shaped member 42 2 in the radial direction, and are reduced from the portion having the larger inner diameter along the tapered portion 14 a of the introduction member 14. Gradually to the place It will be pushed into.
- the insertion is terminated when the one end surface of the annular corrugated fin 42 reaches the junction between the main body 41 and the introduction member 14.
- the top 4 21 c of the annular corrugated fin 42 1 rubs against the inner surface of the introduction member 14, and its shape is changed from an arc shape to a planar shape.
- the degree of this deformation increases as the hardness S of the material of the introduction member 14 and the hardness of the material of the annular corrugated fin 42 1 become greater.
- the contact area between the annular corrugated fins 4 21 and the inner surface of the main body 41 is increased.
- FIG. 26 is a plan view of a radiator 42 according to the present embodiment
- FIG. 27 is a plan view of a heat exchanger 42
- FIG. 28 is a plan view of a cylindrical main body 41. .
- the main body 41 is formed by pouring the molten metal into a mold and solidifying it. As shown in FIG. 28, a wavy concave part 41 m extending in the axial direction is formed on the entire inner surface of the main body. It is given at equal intervals.
- the concave portion 41 m is shaped so that the convex portion 421 k of the annular corrugated fin 42 1 ′ can be fitted.
- a cylindrical inner ring-shaped member 42 2 having an outer diameter slightly equal to the inner diameter is inserted into the corrugated fin 4 21 ′ in advance, and the contact portion is formed.
- a heat exchanger 42 as shown in FIG. 27 is prepared.
- the center of the heat exchanger 42 is aligned with the center axis of the main body 41 and inserted from the axial direction. At this time, as shown in FIG.
- the annular corrugated fin 4 2 1 ′ is firmly adhered to the inner surface of the main body 4 1, and a sufficient contact area is secured over the entire circumference of the annular corrugated fin 4 2 1 ′.
- a radiator 4 having excellent performance can be stably provided.
- the heat exchanger of the present invention does not need to be manually bonded to the main body, so that the productivity of the heat exchanger body can be improved and the production cost can be reduced. Moreover, the obtained heat exchanger body has little variation in quality and has stable heat exchange performance. In addition, the heat exchanger improves the heat conductivity by integrating the corrugated fin and the inner or outer ring-shaped member, thereby improving the heat exchange efficiency.
- the heat exchanger can be pulled out from the main body and taken out. Therefore, even if the corrugated fins are damaged and the quality of the heat exchanger deteriorates, the corrugated fins can be easily replaced as needed, making them very economical and suitable for recycling. .
- the end of the main body of the heat exchanger body has a taper, even if the outer diameter of the heat exchanger is larger than the inner diameter of the main body, the heat exchanger can be smoothly inserted.
- annular corrugated fins there is no need to manually attach the annular corrugated fins to the inside of the tubular body by bonding or welding. Therefore, an improvement in the productivity of the heat effect gas is achieved. In addition, a uniform contact state is obtained over the entire circumference of the annular corrugated fin, so that a heat exchanger body having excellent performance can be stably supplied.
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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01963405A EP1314938B1 (en) | 2000-09-01 | 2001-08-30 | Heat exchanger for stirling refrigerating machine, heat exchanger body, and method of manufacturing heat exchanger body |
CA002419724A CA2419724C (en) | 2000-09-01 | 2001-08-30 | Heat exchanger element and heat exchanger member for a stirling cycle refrigerator and method of manufacturing such a heat exchanger member |
DE60110813T DE60110813T2 (en) | 2000-09-01 | 2001-08-30 | HEAT EXCHANGER FOR STIRLING COOLING MACHINE, HEAT EXCHANGER BODY AND MANUFACTURING METHOD OF HEAT EXCHANGE BODY |
KR10-2003-7002977A KR100523776B1 (en) | 2000-09-01 | 2001-08-30 | Heat exchanger body for stirling refrigerating machine and method of manufacturing heat exchanger body |
US10/362,928 US7225859B2 (en) | 2000-09-01 | 2001-08-30 | Heat exchanger element and heat exchanger member for a stirling cycle refrigerator and method of manufacturing such a heat exchanger member |
BRPI0114038-8A BR0114038B1 (en) | 2000-09-01 | 2001-08-30 | heat exchanger element and heat exchanger member for a stirling cycle cooler and method for manufacturing this heat exchanger member. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000265231A JP3563679B2 (en) | 2000-09-01 | 2000-09-01 | Heat exchanger and heat exchanger body for Stirling refrigerator |
JP2000-265231 | 2000-09-01 | ||
JP2001-42118 | 2001-02-19 | ||
JP2001042118A JP3563703B2 (en) | 2001-02-19 | 2001-02-19 | Heat exchanger for Stirling refrigerator and method of manufacturing the same |
Publications (1)
Publication Number | Publication Date |
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WO2002021056A1 true WO2002021056A1 (en) | 2002-03-14 |
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Family Applications (1)
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PCT/JP2001/007515 WO2002021056A1 (en) | 2000-09-01 | 2001-08-30 | Heat exchanger for stirling refrigerating machine, heat exchanger body, and method of manufacturing heat exchanger body |
Country Status (9)
Country | Link |
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EP (1) | EP1314938B1 (en) |
KR (1) | KR100523776B1 (en) |
CN (1) | CN1206489C (en) |
BR (1) | BR0114038B1 (en) |
CA (1) | CA2419724C (en) |
DE (1) | DE60110813T2 (en) |
ES (1) | ES2240502T3 (en) |
TW (1) | TW552384B (en) |
WO (1) | WO2002021056A1 (en) |
Cited By (2)
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WO2012169915A1 (en) | 2011-06-10 | 2012-12-13 | Aic Spółka Akcyjna | Heat exchanger tube |
CN112438003A (en) * | 2018-07-13 | 2021-03-02 | Abb瑞士股份有限公司 | Heat sink for high-voltage switchgear |
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2001
- 2001-08-30 EP EP01963405A patent/EP1314938B1/en not_active Expired - Lifetime
- 2001-08-30 DE DE60110813T patent/DE60110813T2/en not_active Expired - Lifetime
- 2001-08-30 CA CA002419724A patent/CA2419724C/en not_active Expired - Fee Related
- 2001-08-30 ES ES01963405T patent/ES2240502T3/en not_active Expired - Lifetime
- 2001-08-30 BR BRPI0114038-8A patent/BR0114038B1/en not_active IP Right Cessation
- 2001-08-30 KR KR10-2003-7002977A patent/KR100523776B1/en not_active IP Right Cessation
- 2001-08-30 CN CNB01815042XA patent/CN1206489C/en not_active Expired - Fee Related
- 2001-08-30 WO PCT/JP2001/007515 patent/WO2002021056A1/en active IP Right Grant
- 2001-08-31 TW TW090121598A patent/TW552384B/en not_active IP Right Cessation
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JPH05280815A (en) * | 1992-03-30 | 1993-10-29 | Tokyo Gas Co Ltd | Heat exchanger for external combustion engine |
JPH0886526A (en) * | 1994-09-16 | 1996-04-02 | Sanyo Electric Co Ltd | Vuill-ermier gas engine |
JP2001091075A (en) * | 1999-09-27 | 2001-04-06 | Sharp Corp | Heat exchanger for stirling engine |
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Cited By (2)
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---|---|---|---|---|
WO2012169915A1 (en) | 2011-06-10 | 2012-12-13 | Aic Spółka Akcyjna | Heat exchanger tube |
CN112438003A (en) * | 2018-07-13 | 2021-03-02 | Abb瑞士股份有限公司 | Heat sink for high-voltage switchgear |
Also Published As
Publication number | Publication date |
---|---|
EP1314938A4 (en) | 2004-05-12 |
CA2419724A1 (en) | 2003-02-19 |
CN1206489C (en) | 2005-06-15 |
CA2419724C (en) | 2005-10-11 |
EP1314938A1 (en) | 2003-05-28 |
DE60110813T2 (en) | 2006-02-02 |
CN1483129A (en) | 2004-03-17 |
ES2240502T3 (en) | 2005-10-16 |
DE60110813D1 (en) | 2005-06-16 |
BR0114038A (en) | 2003-07-22 |
TW552384B (en) | 2003-09-11 |
KR100523776B1 (en) | 2005-10-26 |
KR20030028830A (en) | 2003-04-10 |
EP1314938B1 (en) | 2005-05-11 |
BR0114038B1 (en) | 2010-11-30 |
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