WO2006028148A1 - 熱交換器のヘッダタンク - Google Patents
熱交換器のヘッダタンク Download PDFInfo
- Publication number
- WO2006028148A1 WO2006028148A1 PCT/JP2005/016442 JP2005016442W WO2006028148A1 WO 2006028148 A1 WO2006028148 A1 WO 2006028148A1 JP 2005016442 W JP2005016442 W JP 2005016442W WO 2006028148 A1 WO2006028148 A1 WO 2006028148A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tank
- refrigerant
- header tank
- refrigerant distribution
- hole
- Prior art date
Links
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
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F28F9/0273—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple holes
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- 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
- F28F9/02—Header boxes; End plates
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/0202—Header boxes having their inner space divided by partitions
- F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
- F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions
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- 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
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49389—Header or manifold making
Definitions
- the present invention relates to a heat exchange header tank used in a vehicle or the like, and more particularly to a header tank structure having a function of evenly distributing a refrigerant to each tube.
- General heat exchange used in vehicles and the like includes a flat tube and a heat exchange core in which fins are alternately arranged.
- the heat exchange includes a header tank that circulates a refrigerant inside the heat exchange core.
- the header tank is divided into an inlet header tank and an outlet header tank.
- the inlet header tank allows refrigerant supplied from outside to flow into each tube of the heat exchanger core.
- the outlet header tank joins the refrigerant that has exchanged heat with the cooling air while passing through the tube of the heat exchanger core, and discharges it outside.
- header tank arrangements depending on the path of the refrigerant, and a general structure is described here.
- the inlet header tank also supplies the refrigerant with one end force of the tank.
- a large amount of refrigerant flows into the back tube as viewed from the refrigerant supply direction.
- the amount of refrigerant flowing into the tube on the near side is smaller than this. Therefore, the following header tank is proposed. That is, a refrigerant distribution pipe provided with a plurality of refrigerant passage holes is inserted inside the header tank, and the refrigerant is evenly distributed from the refrigerant distribution pipe to each tube (for example, Japanese Patent Laid-Open Nos. 8-86591 and 9 166368). No. publication).
- a header tank having a refrigerant distribution pipe inside requires a refrigerant distribution pipe and a holding plate for holding the refrigerant distribution pipe, which requires parts costs. Since a process for mounting these parts in the header tank is also required, the assembly cost is high. Therefore, the related examples above cannot avoid cost increase! /.
- An object of the present invention is to reduce the manufacturing cost and improve the diversion efficiency in a header tank of a heat exchanger having an internal refrigerant diversion function.
- a first aspect of the invention provides a header tank for the following heat exchange.
- the header tank includes a plurality of tank components joined in a cylindrical shape having a substantially rectangular cross section.
- the header tank includes a refrigerant flow path formed inside the plurality of tank components.
- Each one of the plurality of tank constituent parts includes a tank upper part (31) in which a plurality of tube insertion holes (31a) for connecting the tubes (21) of the heat exchanger core are formed.
- Each one of the plurality of tank constituent parts includes a tank lower part (33) having a refrigerant diverting groove (33A) having a substantially U-shaped cross section having a plurality of refrigerant communication holes (33a, 33b) along the longitudinal direction.
- Each one of the plurality of tank constituent parts includes a plate part (35) that closes the opening of the refrigerant distribution groove (33A) and forms a refrigerant distribution channel (37) inside the tank lower part.
- a second aspect of the invention provides a header tank for the following heat exchange.
- the header tank includes a plurality of tank components joined in a cylindrical shape having a substantially rectangular cross section.
- Each one of the plurality of tank components includes a tank upper part (51) in which a plurality of tube insertion holes (51a) for connecting the tubes (21) of the heat exchanger core are formed.
- Each of the plurality of tank constituent parts is a tank in which a refrigerant distribution part (53A) having a substantially circular cross section having a plurality of refrigerant communication holes (53a, 53b) along the longitudinal direction is formed integrally with a tank lower body. Including the lower part (53).
- a third aspect of the invention provides a header tank (83) for the following heat exchange.
- the header tank (83) includes a header tank (83) formed in a cylindrical shape having a substantially square cross section by a single constituent material.
- the upper surface of the header tank has a plurality of tube insertion holes (61a) for connecting the tubes (21) of the heat exchanger core.
- the lower surface of the header tank has a refrigerant distribution portion (63A) having a substantially circular cross section having a plurality of refrigerant communication holes (63a, 63b) along the longitudinal direction, and is integrated with the tank body.
- the refrigerant distribution part (53A) has a part of a plate material which is a constituent member of a tank molded in a substantially ⁇ cross section.
- the cross section may have a substantially ⁇ shape, and may have joints (55A) at a plurality of locations where the plate materials overlap each other.
- the communication holes (33a, 33b) include a first communication hole (33a) through which a gas-phase refrigerant passes.
- the communication hole includes a second communication hole (33b) through which the liquid-phase refrigerant passes.
- the refrigerant distribution groove (3 3A) has the first communication hole (33a) at the upper part in the direction of gravity when the refrigerant flows through the header tank.
- the refrigerant distribution groove (33A) has the second communication hole (33b) at the lower part in the direction of gravity.
- the refrigerant communication holes (33a, 33b) may be positioned so that more than half of the cross-sectional area overlaps the thickness (t) range of the tube (21)!
- the communication hole (33a, 33b) and the tube (21) may coincide with each other at a longitudinal position of the header tank!
- the joint (55A) may be crimped.
- the joint part (55A) may include a hole; and a protrusion fitted into the hole.
- the joint portion (55C) may include a hole (55a); and a protrusion (55b) that penetrates the hole (55a) and has a crushed tip.
- the refrigerant distribution section (53B) includes a refrigerant distribution pipe (37).
- the refrigerant distribution part (53B) includes a support part (55) that supports the refrigerant distribution pipe (37).
- the refrigerant distribution part (53B) may include a communication hole (53p) communicating with the refrigerant flow path on both sides of the column part (55).
- the communication hole (53p) may have an equivalent diameter of 1. Omm or more.
- the refrigerant distribution part (53F) includes a refrigerant distribution pipe (57) that defines a refrigerant distribution channel inside.
- the refrigerant distribution section (53F) includes a support section (55) that supports the refrigerant distribution pipe (57).
- the refrigerant distribution section (53F) may include a refrigerant flow path on both sides of the support section (55) and a communication hole (53q) communicating with the refrigerant distribution path.
- a fourth feature of the present invention provides a method for manufacturing a header tank of a heat exchanger including the following steps.
- a hole (55a) is opened in the first part (lOld) of the sheet (101).
- the protrusion (55b) is formed on the second portion (101e) of the sheet (101).
- the first part (lOld) is wound around the third part (101a) between the first part (55a) and the second part (55b) of the sheet (101). And the second part (101e) are brought close to each other to form a refrigerant distribution channel.
- the projection (55b) is passed through the hole (55a).
- the tip end of the protrusion (55b) penetrating the hole (55a) is crushed.
- the fourth and fifth portions (101b, 101c) outside the first and second portions (101d, 101e) of the sheet (101) are wound around the third portion (101a ) Then, the refrigerant flow path is formed by bending.
- a communication hole (53f) is formed in the third portion (101a) of the sheet (101).
- the refrigerant distribution groove is formed in the lower part of the tank, the refrigerant distribution hole is provided in the refrigerant distribution groove, and the opening is closed by the plate portion to form the refrigerant distribution channel.
- This structure eliminates the need to make separate components such as the refrigerant distribution pipe and holding plate, and reduces component costs.
- This structure eliminates the need to install a refrigerant distribution pipe and holding plate in the tank, reducing assembly costs. Therefore, this structure has the same function as a header tank with a refrigerant distribution pipe inside, and further reduces manufacturing costs.
- the integration of the refrigerant diversion groove and the bottom of the tank does not cause distortion in the refrigerant diversion groove due to a temperature difference during brazing, and prevents a reduction in the diversion efficiency due to internal distortion as seen in the refrigerant diversion pipe. .
- the lower part of the tank and the refrigerant distribution part having a substantially circular cross section are integrally formed, and the refrigerant communication hole is formed in the refrigerant distribution part.
- This structure requires the production of the refrigerant shunt tube, the holding plate and the plate as separate parts, reducing the part cost.
- This structure eliminates the need to install a refrigerant shunt pipe or holding plate in the tank, reducing assembly costs. Therefore, this structure has the same function as the header tank having the refrigerant distribution pipe inside, and further reduces the manufacturing cost.
- the integration of the tank lower part and the refrigerant distribution part does not cause distortion of the refrigerant distribution groove due to the temperature difference during brazing, and the reduction of the distribution efficiency due to the distortion inside the tank as seen in the refrigerant distribution pipe. prevent.
- the tank upper part and the tank lower part are integrally formed, the header tank body and the refrigerant distribution part having a substantially circular cross section are integrally formed, and the refrigerant distribution part is further formed.
- Refrigerant communication holes were formed in the section.
- This structure eliminates the need to make separate parts for the upper and lower tanks that require only the refrigerant distribution pipe, holding plate, and plate, reducing the number of parts and reducing parts costs.
- This structure eliminates the need for a process for installing the refrigerant distribution pipe and holding plate in the tank, reducing assembly costs. Therefore, this structure has the same function as a header tank with a refrigerant distribution pipe inside, but further reduces manufacturing costs.
- the unit between the header tank body and the refrigerant distribution part This prevents distortion in the refrigerant diversion groove and prevents a reduction in the diversion efficiency due to distortion in the tank as seen in the refrigerant diversion pipe.
- the joining portion prevents the overlapping portion of the plate materials from being opened and improves the brazing property.
- Each communication hole allows efficient discharge of refrigerant in the gas phase and the liquid phase.
- FIG. 1 is an external perspective view showing an overall configuration of a heat exchanger according to a first embodiment.
- FIG. 2 is a cross-sectional view of the lower header tank taken along II II in FIG.
- FIG. 3 is a longitudinal sectional view taken along line III-III in FIG.
- Fig. 4 is a cross-sectional view of the upper header tank along IV-IV in Fig. 1.
- FIG. 5 is a cross-sectional view of the lower header tank of the heat exchanger according to the second embodiment.
- Fig. 6 is a cross-sectional view of the joint portion of the lower header tank of the heat exchanger according to the second embodiment.
- FIG. 7 is a cross-sectional view of the lower header tank according to the third embodiment.
- FIG. 8 is a perspective view of a header tank according to a fourth embodiment.
- Fig. 9 is a cross-sectional view of a shunt pipe having a joint portion of another mode in the header tank of Fig. 8.
- FIG. 10 is a longitudinal sectional view of the header tank of FIG.
- FIG. 11 is a cross-sectional view of a shunt pipe of a header tank according to a fifth embodiment.
- Fig. 12 is a cross-sectional view of the shunt tube of Fig. 11 before attaching the protrusion and the caulking hole.
- FIG. 13 is a side view of a metal sheet as a raw material.
- FIG. 14A is a schematic view showing a first step in a method for manufacturing a header tank.
- FIG. 14B is a schematic view showing a second step in the method for manufacturing the header tank.
- FIG. 14C is a schematic view showing a third step in the method for manufacturing a header tank.
- FIG. 14D is a schematic view showing a fourth step in the method for manufacturing a header tank.
- FIG. 14E is a schematic diagram showing a fifth step in the method for manufacturing a header tank.
- FIG. 14F is a schematic diagram showing a sixth step in the method for manufacturing a header tank.
- FIG. 15 is a perspective view of a header tank according to a sixth embodiment.
- FIG. 16 is a cross-sectional view of the header tank of FIG.
- FIG. 17 is a perspective view showing a header tank of another mode with respect to the header tank of FIG.
- FIG. 18 is a cross-sectional view of the header tank of FIG.
- FIG. 1 is an external perspective view showing the overall configuration of the heat exchanger according to the embodiment.
- the heat exchange roughly includes a lower header tank 13 and an upper header tank 15 and a heat exchange ⁇ core 17.
- the heat exchanger core 17 includes a plurality of tubes 21 through which the refrigerant 19 circulates and cooling fins 23.
- the tubes 21 and the fins 23 are alternately arranged.
- the lower end of the heat exchange ⁇ core 17 is connected to the lower header tank 13 and communicates with one end of each tube 21.
- the upper end of the heat exchange core 17 is connected to the upper header tank 15 and communicates with the other end of each tube 21.
- Both ends of the lower header tank 13 are closed by end plates 25. One of the two ends is connected to an inlet pipe 27 that supplies a cooling medium 19. Both ends of the upper header tank 15 are also closed with the end plate 25. One of these ends is connected to an outlet pipe 29 that discharges the refrigerant 19.
- the refrigerant 19 supplied from the inlet pipe 27 is distributed to each tube 21 while flowing through a refrigerant distribution channel and a refrigerant channel not shown in the lower header tank 13, and the inside of each tube 21 is distributed. pass.
- a heat exchange medium such as cooling air flows between the tubes 21 and the fins 23 of the heat exchanger core 17.
- the heat exchange medium exchanges heat with the refrigerant 19 that passes through the tubes 21 of the heat exchanger core 17.
- the refrigerant 19 joins in the upper header tank 15 and is discharged from the outlet pipe 29 to the outside.
- the refrigerant 19 is supplied to the lower header tank 13 and passes through the heat exchanger core 17.
- the heat exchange 11 in which the refrigerant 19 is merged in the upper header tank 15 and discharged to the outside will be described.
- the flow path of the refrigerant 19 is not limited to the embodiment, and may be other flow paths.
- the refrigerant 19 may be supplied to the upper header tank 15 and pass through the heat exchanger core 17, and the refrigerant 19 may be merged in the lower header tank 13 and discharged to the outside.
- FIG. 2 is a sectional view taken along line II-II in FIG. 1, and shows the structure of the lower header tank 13.
- the lower header tank 13 includes a lower tank upper 31, a lower tank lower 33, and a plate 35.
- the lower tank upper 31 as a tank constituent member was formed into a concave cross-section by bending both ends of the plate material.
- the flat portion has a tube insertion hole 3 la for connecting the tube 21.
- the tube insertion holes 31a are formed at equal intervals along the longitudinal direction.
- the lower tank lower 33 as a tank constituent member has a cross-sectional U-shaped refrigerant distribution groove 33A in which a central portion of the plate material is formed by press carriage.
- the peripheral wall of the refrigerant diversion groove 33A has refrigerant communication holes 33a and 33b formed along the longitudinal direction.
- the communication hole 33a allows the passage of the gas-phase refrigerant.
- the communication hole 33a is positioned at the upper part in the gravity direction when the refrigerant is circulated in the lower header tank 13.
- the communication hole 33b allows passage of liquid phase refrigerant.
- the communication hole 33b is positioned at the lower part in the gravity direction.
- refrigerants such as carbon dioxide and carbon dioxide are supplied to the header tank in a state where the gas phase and liquid phase are mixed. Therefore, the communication holes 33a and 33b arranged as shown in FIG. 2 efficiently discharge the refrigerants in the gas phase and the liquid phase.
- Fig. 3 is a cross-sectional view taken along the line III-III in Fig. 2, showing the positional relationship between the tube 21 and the communication holes 33a, 33b.
- the communication holes 33a and 33b are positioned so as to coincide or partially coincide with the tube insertion hole 31a in the longitudinal direction of the header tank or in plan view. As shown in the figure, the communication holes 33a and 33b only need to have at least half of the cross-sectional area overlapping the thickness range t of the tube width. With this arrangement, the refrigerant that has passed through the communication holes 33a and 33b efficiently flows into the tube 21.
- the communication holes 33a are provided on the top of the refrigerant distribution groove 33A and on both sides thereof, but the number of communication holes may be determined as appropriate. For example, it is possible to provide a communication hole only on both sides of the top without providing a communication hole on the top.
- the lower surface of the lower tank lower 33 has a stepped portion 33B. The plate 35 is inserted into the stepped portion 33B, and the opening of the refrigerant distribution groove 33A is closed to form the refrigerant distribution channel 37 inside the tank.
- both ends of the lower tank lower 33 are bent and formed into a concave cross section. Both ends have flanges 33C for positioning the tube 21, respectively.
- the width of both ends of the lower tank lower 33 may be set in accordance with the tube width, and the end of the tube 21 may be brought into contact with both ends of the lower tank lower 33 to position the tube 21.
- the lower header tank 13 is brazed in combination with the lower tank upper 31, the lower tank lower 33, and the plate 35, and joined to a cylinder having a square cross section.
- a refrigerant distribution channel 37 that communicates with the lower header tank 13 along the longitudinal direction inside the tank, and a refrigerant channel 39 through which the refrigerant distributed from the refrigerant distribution channel 37 flows are formed.
- FIG. 4 is a cross-sectional view taken along the line III-III in FIG. 1, and shows the structure of the upper header tank 15.
- the upper header tank 15 includes an upper tank upper 41 and an upper tank lower 43.
- the upper tank upper 41 as a tank constituent member was formed into a concave cross-section by bending the both ends of the plate material. Both ends have flanges 41 A for positioning the tube 21.
- the upper tank lower 43 as a tank component was also formed into a concave concave shape by bending and bending both ends of the plate material.
- the flat portion has a tube insertion hole 43 a for connecting the tube 21.
- the tube insertion holes 43a are formed at equal intervals along the longitudinal direction.
- the upper header tank 15 is brazed by combining the upper tank upper 41 and the upper tank lower 43 as shown in FIG. As a result, a coolant channel 45 communicating with the longitudinal direction inside the tank is formed in the upper header tank 15.
- the lower header tank 13 and the upper header tank 15 are arranged face to face as shown in FIG. 1, and are connected to the heat exchanger core 17 to complete the heat exchanger 11.
- the refrigerant 19 is supplied to the heat exchanger 11 from the inlet pipe 27, the refrigerant 19 is guided to the inner side of the tank while flowing through the refrigerant distribution passage 37 formed in the lower header tank 13.
- the refrigerant 19 is discharged from the communication holes 33a and 33b positioned along the longitudinal direction of the refrigerant distribution groove 33A. And is evenly distributed to each tube 21.
- the refrigerant distribution groove 33A is formed in the lower tank lower 33, the refrigerant distribution grooves 33A are provided with the refrigerant communication holes 33a and 33b, and the openings are closed by the plate 35 to distribute the refrigerant.
- Path 37 was formed.
- This structure eliminates the need for manufacturing separate components such as the refrigerant distribution pipe and the holding plate, and reduces component costs.
- This structure eliminates the need for a process for installing the refrigerant distribution pipe and holding plate in the tank, thus reducing assembly costs. Therefore, the lower header tank 13 has the same function as the header tank having the refrigerant distribution pipe inside, and further reduces the manufacturing cost.
- the integral part of the refrigerant diverting groove 33A and the lower tank lower 33 does not cause distortion in the refrigerant diverting groove 33A due to a temperature difference during brazing, and causes distortion in the tank as seen in the refrigerant diverting pipe. This prevents a decrease in the diversion efficiency.
- FIG. 5 is a cross-sectional view showing the structure of the lower header tank 73 and corresponds to a cross-sectional view taken along II II in FIG.
- the lower header tank 73 includes a lower tank upper 51 and a lower tank lower 53.
- the lower tank upper 51 as a tank constituent member was formed into a concave cross section by bending the both ends of the plate material.
- the flat portion has a tube insertion hole 51 a for connecting the tube 21.
- the tube insertion holes 5 la are formed at equal intervals along the longitudinal direction.
- the lower tank port 53 is formed by bending (or extruding) the central portion of the plate material into an ⁇ -shaped cross section, and a refrigerant distribution portion 53A having a circular cross section is formed integrally with the lower tank lower 53.
- a support portion 55 supports the refrigerant distribution portion 53A and the lower tank lower 53 main body.
- this column portion 55 has a structure in which plate materials are overlapped by bending calorie or the like, there is a possibility that this portion opens during brazing to form a gap. Therefore, as shown in FIG. 6, a caulking process is applied to a predetermined position of the support column 55 to form a joint 55A.
- the joint portion 55A temporarily fixes the plate materials overlapped by the support column portion 55 to prevent the plate material from being opened, thereby improving the brazing property.
- the refrigerant distribution portion 53A has refrigerant communication holes 53a and 53b along the longitudinal direction. This house The communication hole 53a allows passage of the gas-phase refrigerant.
- the communication hole 53a is positioned at the upper part in the direction of gravity when the refrigerant is circulated in the lower header tank 73.
- the communication hole 53b allows the liquid-phase refrigerant to pass through and is positioned at the lower part in the direction of gravity.
- Both ends of the lower tank lower 53 are formed into a concave cross section by a bending cage. Both ends have flange portions 53C for positioning the tube 21.
- the lower tank upper 51 and the lower tank lower 53 are combined and brazed as shown in FIG. 5, and joined to a cylindrical lower header tank 73 having a rectangular cross section.
- the lower header tank 73 has a refrigerant distribution channel 57 that communicates along the longitudinal direction inside the tank, and a refrigerant channel 59 for circulating the refrigerant distributed from the refrigerant distribution channel 57, and is supplied from the outside. Distribute the refrigerant to each tube 21 evenly.
- the lower header tank 73 According to the lower header tank 73, the lower tank lower 53 and the refrigerant diverting portion 53A having a substantially circular cross section are integrally formed, and the refrigerant diverting portion 53A is provided with refrigerant communication holes 53a and 53b.
- This structure eliminates the need for manufacturing separate components for the refrigerant shunt tube, holding plate, and plate, and reduces component costs.
- This structure eliminates the need to install a refrigerant distribution pipe and holding plate in the tank, reducing assembly costs. Therefore, the lower header tank 73 has the same function as the header tank having the refrigerant distribution pipe inside, and further reduces the manufacturing cost.
- the communication holes 53a are provided on the top of the refrigerant distribution part 53A and on both sides thereof, but the number of communication holes may be determined as appropriate. For example, it is possible to provide a communication hole only on both sides of the top without providing a communication hole on the top.
- the integral part of the lower tank lower 53 and the refrigerant distribution part 53A does not cause distortion in the refrigerant distribution part 53A due to a temperature difference during brazing, and does not cause distortion in the tank as seen in the refrigerant distribution pipe. This prevents a decrease in the diversion efficiency.
- the strut portion 55 having a structure in which plate members are stacked has a joint portion 55A formed by caulking. This structure temporarily fixes the plate materials overlapped by the supporting column 55, prevents the plate materials from being opened, and improves the brazing property.
- FIG. 7 is a cross-sectional view showing the structure of the lower header tank 83 according to the third embodiment, and corresponds to a cross-sectional view along II-II in FIG.
- This lower header tank 83 is a single plate or pipe
- the material was bent (in the case of plate material, the seam was joined after forming) and formed into a cylinder with a square cross section.
- the flat portion on the upper surface side has a tube insertion hole 6 la for connecting the tube 21.
- the tube insertion holes 61a are formed at equal intervals along the longitudinal direction.
- the central portion on the lower surface side is formed into a ⁇ cross section, and a refrigerant distribution portion 63A having a circular cross section is formed integrally with the lower header tank 83 main body.
- the refrigerant distribution section 63A has a plurality of refrigerant communication holes 63a and 63b formed along the longitudinal direction.
- the communication hole 63a allows the passage of the gas-phase refrigerant and is positioned at the upper part in the gravity direction when the refrigerant is circulated in the lower header tank 83.
- the communication hole 63b allows the liquid-phase refrigerant to pass therethrough and is positioned at the lower part in the direction of gravity.
- the lower header tank 83 was formed into a cylindrical shape with a square cross section by bending a single plate or pipe material.
- the lower header tank 83 has a refrigerant flow path 67 communicating along the longitudinal direction inside the tank and a refrigerant flow path 69 for circulating the refrigerant distributed from the refrigerant flow path 67, and is supplied with external force. Distribute the refrigerant to each tube 21 evenly.
- a space between the refrigerant distribution portion 63A and the lower header tank 61 main body is supported by a support portion 65. Clamping is applied to a predetermined position of the support column 65 so that the overlapped part is opened during brazing and no gap is formed! / To form the same joint as in FIG. (Omitted).
- the lower header tank 83 According to the lower header tank 83, the lower tank upper and the lower tank lower are integrally formed, and the lower header tank 83 main body and the refrigerant distribution portion 63A having a substantially circular cross section are integrally formed. Refrigerant communication holes 63a and 63b are provided in the refrigerant distribution part 63A.
- This structure eliminates the need for production as a separate component of the lower tank upper and lower tank lower, which requires only the refrigerant distribution pipe, holding plate, and plate, reduces the number of components, and reduces component costs.
- This structure eliminates the need to install a refrigerant distribution pipe or holding plate in the tank, reducing assembly costs.
- the lower header tank 83 has the same function as the header tank having the refrigerant distribution pipe inside, and further reduces the manufacturing cost.
- the communication holes 63a are provided on the top of the refrigerant distribution part 63A and on both sides thereof, but the number of communication holes may be determined as appropriate. For example, it is good also as a communicating hole only in the both sides of a top part, without providing the communicating hole of a top part.
- the integral part of the lower header tank 83 main body and the refrigerant diverting part 63A does not cause distortion in the refrigerant diverting groove 33A due to a temperature difference during brazing, and the tank internal as seen in the refrigerant diverting pipe. so Prevents the diversion efficiency from decreasing due to distortion.
- the column portion 65 having a structure in which the plate materials are stacked has a joining portion 55A as shown in FIG. This structure temporarily fixes the plate materials overlapped by the support column 65, prevents the plate materials from being opened, and improves the brazing property.
- header tank 93A includes an elongated first tank 51B having a U-shaped cross section.
- the header tank 93A includes an elongated second tank 53B joined to the first tank 51B.
- the first and second tanks 51B and 53B form a refrigerant channel 59 therein.
- the second tank 53B is composed of a single metal sheet.
- the second tank 53B includes sheet end portions 53c and 53d having an L-shaped cross section.
- the seat edges 53c and 53d are combined to form a U-shaped outer wall.
- the lateral ends 53cl and 53dl of the sheet end portions 53c and 53d are joined to the lateral ends 5lc and 5Id of the first tank 51B, respectively.
- the second tank 53B includes a column portion 55 obtained by joining two sheets extending from the sheet end portions 53c and 53d.
- the column portion 55 has a joint portion 55B as shown in FIG.
- the two stacked plates are punched and crimped. This punching forms the i-th hollow protrusion 55c on one sheet and the second hollow protrusion 55d fitted into the first hollow protrusion 55c on the other sheet.
- This temporary fixing by caulking does not open the sheets of the support column 55, and does not create a gap therebetween, thereby improving the brazing property.
- the second tank 53 has a branch pipe 53e as a refrigerant branch section 53A that is continuous with each sheet of the support section 55.
- the distribution pipe 53e extends in the longitudinal direction in the refrigerant flow path 59, and defines the refrigerant distribution flow path 57 therein.
- the flow dividing pipe 53e has a communication hole 53f and a communication hole 53g that are spaced apart in the longitudinal direction.
- the communication holes 53f and 53g communicate the refrigerant flow path 57 and the refrigerant flow path 59.
- the communication hole 53f has, for example, a diameter of 0.6 mm
- the communication hole 53g has, for example, a diameter of 1. Omm.
- the communication hole 53f is positioned clockwise or counterclockwise from 3 o'clock to 5 o'clock with the column portion 55 set to 0 o'clock.
- the communication hole 53g is positioned clockwise or counterclockwise from 0 o'clock to 3 o'clock with the column portion 55 set at 0 o'clock. As shown in FIG.
- the width t of the tube 21 is projected in the lateral direction onto the shunt pipe 53e, and the range in the longitudinal direction is R1.
- the communication hole 53f has a cross-sectional area Positioned so that more than half overlaps range Rl. That is, it is only necessary that a part of the communication hole 53f coincides with the range R1 in the longitudinal position.
- the integral flow of the flow dividing pipe 53e and the header tank 93A improves the heat transfer efficiency during baking, and the flow dividing or cooling between the flow dividing pipe 53e and the header tank 93A. Reduce the temperature difference. This reduced temperature difference reduces the difference between expansion and contraction and eliminates the distortion of the shunt pipe 53e.
- the header tank 93A may be formed into a tank shape by bending a single metal sheet.
- the header tank of this embodiment has the same structure as that of the fourth embodiment, and is characterized by a junction 55C.
- the joining portion 55C has a caulking hole 55a formed in one sheet of the support portion 55.
- the joint portion 55C has a protrusion 55b that protrudes from the other sheet of the column portion 55.
- the protrusion 55b is fitted into the caulking hole 55a.
- the tip of the protrusion 55b has a flange or annular stopper 55bl extending to the outer edge of the caulking hole 55a. This stopper 55bl prevents the seat of the column 55 from being opened.
- Both lateral ends of a single metal sheet are bent so that both ends are opposed to each other, and a concave cross section is formed.
- a metal sheet 101 as a raw material uses a clad material having a brazing material layer on its surface.
- the sheet 101 has a central portion 10la extending from the center line C1 toward both lateral ends.
- the sheet 101 has end portions 101b and 101c extending from both lateral ends toward the center line C1.
- the sheet 101 has intermediate portions 101d and 101e between a central portion 101a and end portions 101b and 101c.
- the first step will be described with reference to FIG. 14A.
- the first step consists of the first platform 111 and the second platform 1 Use 13!
- the first car llli has the first carrot ll la, 111b, 111c, ll ld to pass through the four nonches 115a, 115b, 115c, 115d.
- the second base 113 has second processing holes 113a, 113b, 113c, and 113d positioned in alignment with the first processing holes ll la, 111b, 111c, and 11 Id.
- the sheet 101 is placed on the first table 111 and centered with respect to the first table 111.
- the second table 113 is placed on the sheet 101, and the sheet 101 is placed between the first and second tables 111 and 113.
- Nongchi 115a, 115b, 115c, 115d force ⁇
- First carriage 111 of the first platform 111 1 l la, 111b, 111c, 11 Id are inserted respectively from the center line C1 with a predetermined distance from the seat 101 It passes through the central portion 101a and reaches the second Karoe hole 113a, 113b, 113c, 113d of the second base 113.
- the sheet 101 is opened with four tiles 101al, 101a2, 101a3, and 101a4. Of these, the two holes 101al and 101a2 correspond to the communication hole 53g, respectively. Similarly, the two holes 101a3 and 101a4 correspond to the communication hole 53f.
- the second step will be described with reference to FIG. 14B.
- the first press die 117 and the second press die 119 are used.
- the first press die 117 has protrusions 117a and 117b on both lateral ends.
- the first press die 117 has a recess 117c between the protrusions 117a and 117b.
- the second press die 119 has arms 119a and 119b extending from both lateral ends.
- the second press die 119 has a protrusion 119c at the center.
- the second press die 119 has four corners 119d and 119e between the protrusion 119c and the arms 119a and 119b.
- the sheet 101 is placed on the first press die 117.
- the second press die 119 is lowered and pressed against the sheet 101 on the first press die 117.
- the arms 119a and 119b of the second press die 119 bend the end portions 101b and 101c of the sheet 101 at right angles and press them against the side wall of the first press die 117.
- the projecting portion 119c of the second press die 119 causes the central portion 10la of the sheet 101 to be recessed and pressed against the recess 117c of the first press die 117.
- the protruding portions 117a and 117b of the first press die 117 and the recesses 119d and 119e of the second press die 119 hold the intermediate portions 101d and 10 le therebetween.
- the third step will be described with reference to FIG. 14C.
- a work table 121 In the third step, a work table 121, a press tool 123, and a punch tool 125 are used.
- the work table 121 has the same structure as the first press 117, and has first and second protrusions 121a and 121b at both lateral ends.
- First protrusion 121a Has a hole 121c through which the punch tool 125 is inserted.
- the second protrusion 121b has a protrusion 121d thereon.
- the sheet 101 is placed on the force table 121.
- the punch tool 125 is pierced through the intermediate part lOld on the first projecting part 121a, and a hole 101f is opened in the intermediate part 101d.
- This hole 101f corresponds to the caulking hole 55a.
- the recess 123a of the press tool 123 is pressed against the intermediate portion 101e on the protrusion 121d of the protrusion 121b to form a protrusion 101g on the intermediate portion 101e.
- This protrusion 101g corresponds to the protrusion 55b.
- the formation of the protrusion 101g and the hole 101f is the fifth step, that is, immediately before the caulking process, and increases the positional accuracy.
- the fourth step will be described with reference to FIG. 14D.
- a first press die 127 and a second press die 129 are used.
- the first press die 127 has a concave portion 127b having a semicircular cross section on the top surface 127a.
- the second press die 129 has a rectangular die 129a and a cylindrical die 129b at the end of the rectangular die 129a.
- the sheet 101 is placed on the processing table 127.
- the second press die 129 is lowered, the central portion 101a of the sheet 101 is pressed against the concave portion 127b, and the lower half lOlal of the central portion 101a is formed into a semicircular cross section. Press the upper half of the central part 101 and the intermediate parts 101d and 101e against the both side walls of the rectangular mold 129a.
- the fifth step will be described with reference to FIG. 14E.
- the first press die 131, the second press die 133a, 133b, and the third press die 135 are used.
- the first press die 131 has a recess 131b having a semicircular cross section on the top surface 131a.
- the second press dies 133a and 133b have recesses 133al and 133bl each having a quarter arc of the cross section.
- the third press die 135 has guides 135a and 135b extending from both lateral end forces.
- the lower half of the central portion 101a of the sheet 101 is installed in the recess 131b of the first press die 131.
- the second press dies 133a and 133b are applied from both sides to the upper half of the central portion 101a and the intermediate portions 101d and 101e.
- the upper half of the central portion 101a is in contact with the recesses 133al and 133bl.
- the intermediate portions 101d and 101e are in contact with each other, and the protrusion 101g of the intermediate portion 101e is inserted into the hole 101e of the intermediate portion lOld.
- the third press die 135 is lowered toward both end portions 101b and 101c of the sheet 101 on the second die 133a and 133b.
- the guides 135a and 135b slide on the side walls of the second press dies 133a and 133b, and the second press dies 133a and 133b are First, push toward 101.
- the second press dies 133a and 133b press the intermediate portions 101d and 101e together, and crush the tips of the protrusions 101g to expand them into a ring shape (caulking process).
- the upper half of the central wall 101a is formed into an arc shape.
- the sixth step will be described with reference to FIG. 14F.
- a first press die 137 and a second press die 139 are used.
- the first press die 137 is assembled with two parts.
- Each component of the first press die 137 has convex outer walls 137al and 137a2.
- the first press die 137 has a recess formed by combining a space 137c having a rectangular cross section and a space 137b having a circular cross section.
- the second press die 139 has a recess 139a.
- the concave portion 139a has concave inner walls 139al and 139a2 on both sides with respect to the center line C1.
- the second press die 139 is lowered toward the first press die 137.
- the inner walls 139al and 139a2 of the recess 139a press the opposite end portions 101b and 101c of the sheet 101 against the outer walls 137al and 137a2. By this pressing, both end portions 101b and 101c are bent toward the central portion 101a.
- the intermediate portions 101d and 101e of the sheet 101 are brazed to complete the second tank 53D.
- the brazing material may be applied to the intermediate portions 101d and 101e after the sixth step.
- Both the lateral ends of the first tank and the lateral ends of the second tank 53D are brazed to complete the header tank.
- the intermediate portions 101d and 101e of the sheet 101 are contacted and swaged to suppress the sheet opening of the support column 55 before seizure, thereby preventing poor brazing.
- the protrusions 55b between the sheets of the supporting column 55 stabilize the brazing flow property and improve the brazing property. That is, the members having contact points (joining portions) facilitate the flow of the brazing material over the entire contact surface.
- This header tank 93B is characterized by a second tank 53E. That is, the second tank 53E has a communication hole 53p with an equivalent diameter of, for example, 1. Omm or more in the column portion 55.
- a communication hole having an equivalent diameter of 1. Omm or more is a hole having an opening area equivalent to a circular hole having a diameter of 1. Omm or more.
- the communication holes 53p are formed at an integral interval in the longitudinal direction.
- the shunt pipe 53e further has a communication hole 53g between the communication holes 53f and 53p.
- the communication hole 53p communicates with the refrigerant flow path 59 on one side and the other side of the support column 55, and allows the liquid-phase refrigerant to move between the two refrigerant flow paths 59. To do.
- This header tank 93C is characterized by a second tank 53F. That is, the second tank 53F has a communication hole 53q positioned so as to extend from the support column 55 to the flow dividing pipe 57. Since the communication hole 53q has a function of discharging the liquid refrigerant from the branch pipe 57, the liquid refrigerant discharge hole is eliminated.
- the communication holes 53p and 53q maintain the liquid refrigerant level at both sides of the support column 55 in the header tanks 53E and 53F evenly, thereby stabilizing the performance of the header tanks 53E and 53F.
- This structure achieves weight reduction of the header tanks 53E and 53F.
- the header tank of the heat exchanger of the invention is useful in that it is applied to a vehicle air conditioner such as a condenser or an evaporator.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006535797A JP4516967B2 (ja) | 2004-09-08 | 2005-09-07 | 熱交換器のヘッダタンク |
US11/574,822 US20070256821A1 (en) | 2004-09-08 | 2005-09-07 | Header Tank for Heat Exchanger |
EP05782265A EP1826523A1 (en) | 2004-09-08 | 2005-09-07 | Header tank for heat exchanger |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-260961 | 2004-09-08 | ||
JP2004260961 | 2004-09-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006028148A1 true WO2006028148A1 (ja) | 2006-03-16 |
Family
ID=36036430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/016442 WO2006028148A1 (ja) | 2004-09-08 | 2005-09-07 | 熱交換器のヘッダタンク |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070256821A1 (ja) |
EP (1) | EP1826523A1 (ja) |
JP (1) | JP4516967B2 (ja) |
WO (1) | WO2006028148A1 (ja) |
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JP2011099649A (ja) * | 2009-11-09 | 2011-05-19 | Showa Denko Kk | エバポレータ |
JP2011163621A (ja) * | 2010-02-08 | 2011-08-25 | Showa Denko Kk | 熱交換器 |
JP2012513881A (ja) * | 2008-12-30 | 2012-06-21 | ウルトラデント プロダクツ インコーポレイテッド | ヒートシンクとして機能する一体設計の歯科用硬化ライト |
JP2017032244A (ja) * | 2015-08-05 | 2017-02-09 | 東芝キヤリア株式会社 | 冷凍サイクル装置 |
WO2020230737A1 (ja) * | 2019-05-10 | 2020-11-19 | ダイキン工業株式会社 | 熱交換器およびヒートポンプ装置 |
WO2023248405A1 (ja) * | 2022-06-23 | 2023-12-28 | 三菱電機株式会社 | 熱交換器及び冷凍サイクル装置 |
JP7562284B2 (ja) | 2020-05-14 | 2024-10-07 | 三星電子株式会社 | 分配器及び熱交換器ユニット |
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DE102008023055A1 (de) | 2007-05-22 | 2008-11-27 | Behr Gmbh & Co. Kg | Wärmeübertrager |
US20090173482A1 (en) * | 2008-01-09 | 2009-07-09 | Beamer Henry E | Distributor tube subassembly |
US7921558B2 (en) * | 2008-01-09 | 2011-04-12 | Delphi Technologies, Inc. | Non-cylindrical refrigerant conduit and method of making same |
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DE202008011555U1 (de) | 2008-08-28 | 2010-01-07 | Autokühler GmbH & Co. KG | Sammelkasten für einen Ladeluftkühler |
JP5739603B2 (ja) * | 2009-01-27 | 2015-06-24 | 株式会社小松製作所 | 熱交換器 |
CN101691981B (zh) * | 2009-07-23 | 2011-12-07 | 三花丹佛斯(杭州)微通道换热器有限公司 | 具有改进的制冷剂流体分配均匀性的多通道换热器 |
CN102079038B (zh) * | 2010-12-08 | 2013-02-13 | 三花控股集团有限公司 | 一种换热器及其制冷剂导流管,以及制冷剂导流管的加工方法 |
US20120292004A1 (en) * | 2011-05-20 | 2012-11-22 | National Yunlin University Of Science And Technology | Heat exchanger |
DE102011080499A1 (de) * | 2011-08-05 | 2013-02-07 | Behr Gmbh & Co. Kg | Wärmeübertrager für ein Fahrzeug und Verfahren zum Herstellen eines Wärmeübertragers für ein Fahrzeug |
US9581397B2 (en) | 2011-12-29 | 2017-02-28 | Mahle International Gmbh | Heat exchanger assembly having a distributor tube retainer tab |
KR102079722B1 (ko) * | 2013-04-18 | 2020-02-20 | 삼성전자주식회사 | 열교환기 |
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US10551099B2 (en) | 2016-02-04 | 2020-02-04 | Mahle International Gmbh | Micro-channel evaporator having compartmentalized distribution |
CN107796256A (zh) * | 2017-07-13 | 2018-03-13 | 杭州三花研究院有限公司 | 集流管及具有该集流管的换热器 |
CN110940220B (zh) * | 2018-09-25 | 2022-03-01 | 丹佛斯有限公司 | 用于换热器的分配管组件和具有该分配管组件的集流管组件和换热器 |
DE102018222815A1 (de) | 2018-12-21 | 2020-06-25 | Mahle International Gmbh | Aufnahmekasten für eine Wärmeübertrager |
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- 2005-09-07 EP EP05782265A patent/EP1826523A1/en not_active Withdrawn
- 2005-09-07 US US11/574,822 patent/US20070256821A1/en not_active Abandoned
- 2005-09-07 JP JP2006535797A patent/JP4516967B2/ja not_active Expired - Fee Related
- 2005-09-07 WO PCT/JP2005/016442 patent/WO2006028148A1/ja active Application Filing
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JP2012513881A (ja) * | 2008-12-30 | 2012-06-21 | ウルトラデント プロダクツ インコーポレイテッド | ヒートシンクとして機能する一体設計の歯科用硬化ライト |
JP2016105751A (ja) * | 2008-12-30 | 2016-06-16 | ウルトラデント プロダクツ インコーポレイテッド | ヒートシンクとして機能する一体設計の歯科用硬化ライト |
JP2011099649A (ja) * | 2009-11-09 | 2011-05-19 | Showa Denko Kk | エバポレータ |
JP2011163621A (ja) * | 2010-02-08 | 2011-08-25 | Showa Denko Kk | 熱交換器 |
JP2017032244A (ja) * | 2015-08-05 | 2017-02-09 | 東芝キヤリア株式会社 | 冷凍サイクル装置 |
WO2020230737A1 (ja) * | 2019-05-10 | 2020-11-19 | ダイキン工業株式会社 | 熱交換器およびヒートポンプ装置 |
JP2020186830A (ja) * | 2019-05-10 | 2020-11-19 | ダイキン工業株式会社 | 熱交換器およびヒートポンプ装置 |
CN113811726A (zh) * | 2019-05-10 | 2021-12-17 | 大金工业株式会社 | 热交换器和热泵装置 |
CN113811726B (zh) * | 2019-05-10 | 2023-04-28 | 大金工业株式会社 | 热交换器和热泵装置 |
JP7562284B2 (ja) | 2020-05-14 | 2024-10-07 | 三星電子株式会社 | 分配器及び熱交換器ユニット |
WO2023248405A1 (ja) * | 2022-06-23 | 2023-12-28 | 三菱電機株式会社 | 熱交換器及び冷凍サイクル装置 |
Also Published As
Publication number | Publication date |
---|---|
JP4516967B2 (ja) | 2010-08-04 |
JPWO2006028148A1 (ja) | 2008-05-08 |
US20070256821A1 (en) | 2007-11-08 |
EP1826523A1 (en) | 2007-08-29 |
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