WO2016178398A1 - 積層型ヘッダ、熱交換器、及び、空気調和装置 - Google Patents
積層型ヘッダ、熱交換器、及び、空気調和装置 Download PDFInfo
- Publication number
- WO2016178398A1 WO2016178398A1 PCT/JP2016/063220 JP2016063220W WO2016178398A1 WO 2016178398 A1 WO2016178398 A1 WO 2016178398A1 JP 2016063220 W JP2016063220 W JP 2016063220W WO 2016178398 A1 WO2016178398 A1 WO 2016178398A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plate
- bodies
- opening
- flow path
- openings
- Prior art date
Links
Images
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
- F28F9/0278—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 stacked distribution plates or perforated plates arranged over end plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
-
- 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
- F25B41/00—Fluid-circulation arrangements
-
- 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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
- F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
- F28D1/0435—Combination of units extending one behind the other
-
- 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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
-
- 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
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0221—Header boxes or end plates formed by stacked 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
- F28F2275/00—Fastening; Joining
- F28F2275/04—Fastening; Joining by brazing
Definitions
- the present invention relates to a laminated header, a heat exchanger, and an air conditioner.
- a laminated header that distributes and supplies a refrigerant to each heat transfer tube of a heat exchanger.
- This laminated header distributes refrigerant to each heat transfer tube of a heat exchanger that forms a distribution channel that branches into a plurality of outlet channels for one inlet channel by stacking a plurality of plate-like bodies.
- the plate-like bodies constituting the laminated header are joined by brazing.
- Brazing joining is performed by heating and melting the brazing material clad on the surface of the plate-like body, and forming a fillet on the outer periphery of the plate-like body or the inner periphery of the opening of the plate-like body by surface tension. They are joined together.
- the amount (volume) of the clad brazing material is relatively large relative to the length of the outer periphery of the plate-like body on which the fillet is formed and the inner periphery of the opening of the plate-like body In this case, surplus brazing material is generated, and a large amount of the brazing material flows into the refrigerant flow path portion of the laminated header, thereby blocking the flow path.
- the present invention has been made against the background of the above problems, and reduces the brazing material that is excessive when brazing each plate-like body of the laminated header, thereby preventing the refrigerant flow path from being blocked.
- An object is to obtain a laminated header.
- an object of this invention is to obtain the heat exchanger provided with such a laminated header.
- an object of this invention is to obtain the air conditioning apparatus provided with such a heat exchanger.
- the laminated header according to the present invention is a laminated header configured by alternately laminating a plurality of first plate-like bodies and a plurality of second plate-like bodies, and the plurality of first plates in the laminating direction.
- One first opening is formed in one end-side first plate-like body arranged at one end of the one-like bodies, and the one end-side first plate-like body among the plurality of first plate-like bodies in the stacking direction.
- a plurality of second openings are formed in the first plate at the other end disposed at the other end, and the first plate and the plurality of second plates have the first first plate.
- a communication hole connecting one opening and the plurality of second openings is formed, and an opening is formed in a portion of the plurality of second plate-like bodies where the communication hole is not formed. Communicating with the atmosphere.
- an opening is formed in a portion where the mixed flow channel of the plurality of second plate-like bodies is not formed, and the opening communicates with the atmosphere.
- the surplus brazing material that has flowed into the opening during the brazing process flows toward the atmospheric space having a relatively low pressure. Thereby, the molten brazing material in the opening does not lose its place, the surplus brazing material can be prevented from flowing into the mixed flow channel, and blockage of the mixed flow channel can be prevented.
- FIG. 1 is a perspective view of a heat exchanger according to Embodiment 1.
- FIG. 3 is an exploded perspective view of the multilayer header according to Embodiment 1.
- FIG. 4 is a side view of the stacked header according to Embodiment 1.
- FIG. It is a figure explaining the connection of the heat exchange part and splitting flow part of the heat exchanger which concerns on Embodiment 1.
- FIG. It is a figure explaining the connection of the heat exchange part and splitting flow part of the heat exchanger which concerns on Embodiment 1.
- FIG. It is a figure explaining the connection of the heat exchange part and split mixing flow part of the modification of the heat exchanger which concerns on Embodiment 1.
- FIG. 6 is an exploded perspective view of a stacked header according to a second embodiment. 6 is an exploded perspective view of a multilayer header according to Embodiment 3.
- FIG. 10 is a side view of the stacked header according to the third embodiment.
- FIG. 10 is an exploded perspective view of a stacked header according to a fourth embodiment.
- the laminated header and the heat exchanger according to the present invention are applied to an air conditioner.
- the present invention is not limited to such a case. It may be applied to the refrigeration cycle apparatus.
- the laminated header and the heat exchanger according to the present invention are outdoor heat exchangers of an air conditioner
- the present invention is not limited to such a case, and the indoor heat exchanger of the air conditioner It may be.
- an air conditioning apparatus switches between heating operation and cooling operation is demonstrated, it is not limited to such a case, You may perform only heating operation or cooling operation.
- Embodiment 1 FIG. The stacked header, the heat exchanger, and the air conditioner according to Embodiment 1 will be described. ⁇ Configuration of heat exchanger> (Schematic configuration of heat exchanger) Below, schematic structure of the heat exchanger which concerns on Embodiment 1 is demonstrated.
- 1 is a perspective view of a heat exchanger according to Embodiment 1.
- the heat exchanger 1 includes a heat exchanging unit 2 and a split blending unit 3.
- the heat exchange unit 2 includes an upwind heat exchange unit 21 disposed on the leeward side and a leeward side disposed on the leeward side in the direction of passage of air passing through the heat exchange unit 2 (the white arrow in the figure). And a heat exchanging unit 31.
- the windward heat exchange unit 21 includes a plurality of windward heat transfer tubes 22 and a plurality of windward fins 23 joined to the windward heat transfer tubes 22 by, for example, brazing.
- the leeward side heat exchange unit 31 includes a plurality of leeward side heat transfer tubes 32 and a plurality of leeward side fins 33 joined to the plurality of leeward side heat transfer tubes 32 by brazing or the like, for example.
- the heat exchanging unit 2 may be configured by two rows of the windward side heat exchanging unit 21 and the leeward side heat exchanging unit 31, or may be configured by three or more rows.
- the windward side heat transfer tube 22 and the leeward side heat transfer tube 32 are flat tubes, and a plurality of flow paths are formed inside thereof. Each of the plurality of windward side heat transfer tubes 22 and the plurality of leeward side heat transfer tubes 32 is bent in a hairpin shape between one end and the other end to form folded portions 22a and 32a.
- the windward side heat transfer tubes 22 and the leeward side heat transfer tubes 32 are arranged in a plurality of stages in a direction intersecting with the passage direction of air passing through the heat exchanging unit 2 (the white arrow in the figure).
- each of the plurality of windward side heat transfer tubes 22 and the plurality of leeward side heat transfer tubes 32 are arranged in parallel so as to face the mixing / mixing flow portion 3.
- the windward side heat transfer tube 22 and the leeward side heat transfer tube 32 may be circular tubes (for example, a circular tube having a diameter of 4 mm).
- the windward side heat transfer tube 22 and the leeward side heat transfer tube 32 are not bent into a hairpin shape between one end and the other end, and the folded portions 22a and 32a are not formed. And one end of the leeward heat transfer tube 32 and one end of the windward side heat transfer tube 22 and the leeward side heat transfer tube 32 adjacent to the leeward side heat transfer tube 32 are connected members each having a flow path formed therein.
- the refrigerant may be folded back by being connected via the line.
- the distribution flow unit 3 includes a laminated header 51 and a cylindrical header 61.
- the laminated header 51 and the cylindrical header 61 are arranged side by side so as to follow the passage direction of air passing through the heat exchanging unit 2 (the white arrow in the figure).
- a refrigerant pipe (not shown) is connected to the laminated header 51 via a connection pipe 52.
- a refrigerant pipe (not shown) is connected to the tubular header 61 via a connection pipe 62.
- the connection pipe 52 and the connection pipe 62 are, for example, circular pipes.
- the laminated header 51 is connected to the windward heat exchanging unit 21, and a split flow channel 51 a is formed therein.
- the split-mixing flow channel 51a distributes the refrigerant flowing from the refrigerant pipe (not shown) to the plurality of windward side heat transfer tubes 22 of the windward side heat exchange unit 21. It becomes an outflow distribution channel.
- the split flow channel 51a joins refrigerant flowing in from the plurality of windward side heat transfer tubes 22 of the windward side heat exchange unit 21 to a refrigerant pipe (not shown). It becomes the merging channel that flows out.
- the split flow channel 51a corresponds to the communication hole of the present invention.
- the cylindrical header 61 is connected to the leeward side heat exchanging portion 31 and a split flow channel 61a is formed therein.
- the split flow channel 61a distributes the refrigerant flowing from the refrigerant pipe (not shown) to the plurality of leeward heat transfer tubes 32 of the leeward heat exchange unit 31. It becomes an outflow distribution channel.
- the split-mixing flow channel 61a joins refrigerant flowing in from the plurality of leeward heat transfer tubes 32 of the leeward heat exchange unit 31 to a refrigerant pipe (not shown). It becomes the merging channel that flows out.
- the heat exchanger 1 includes the stacked header 51 in which the distribution flow path (split flow path 51a) is formed and the merge flow path (split flow path 61a) when the heat exchange unit 2 functions as an evaporator. And a cylindrical header 61 formed separately.
- the heat exchanger 1 when the heat exchange unit 2 acts as a condenser, the heat exchanger 1 includes a cylindrical header 61 in which a distribution channel (split / mixed flow channel 61a) is formed, and a merged channel (split / mixed flow channel 51a). And a stacked header 51 formed separately.
- FIG. 2 is an exploded perspective view of the stacked header according to the first embodiment.
- FIG. 3 is a side view of the stacked header according to the first embodiment.
- the stacked header 51 shown in FIGS. 2 and 3 includes, for example, a rectangular first plate-like body 111 (one end-side first plate-like body of the present invention), 112, 113, 114 (the other end-side first of the present invention. Plate-like body) and second plate-like bodies 121, 122, and 123 sandwiched between the first plate-like bodies.
- the first plate-like bodies 111, 112, 113, and 114 and the second plate-like bodies 121, 122, and 123 have the same shape in plan view.
- the brazing material is not clad (coated) on the first plate-like bodies 111, 112, 113, 114 before brazing and the second plate-like bodies 121, 122, 123 are brazed on both sides or one side.
- the material is clad (coated). From this state, the first plate-like bodies 111, 112, 113, 114 are stacked via the second plate-like bodies 121, 122, 123, and are heated and brazed and joined in a heating furnace.
- the first plate-like bodies 111, 112, 113, 114 and the second plate-like bodies 121, 122, 123 are, for example, about 1 to 10 mm in thickness and made of aluminum.
- the first flow path 10A which is a circular through hole formed in the first plate bodies 111, 112, 113, 114 and the second plate bodies 121, 122, 123
- the second The split flow channel 51a is formed by the flow channel 11A, the third flow channel 12A, and the branched flow channels 10B and 11B that are substantially S-shaped or substantially Z-shaped through grooves.
- at least one of the second plate-like bodies 121, 122, 123 has openings 20A, 20B, 20C, 20D as, for example, rectangular defects (details will be described later).
- Each plate-like body is processed by pressing or cutting. In the case of processing by press working, a plate material having a thickness that can be pressed is 5 mm or less, and in the case of processing by cutting processing, a plate material having a thickness of 5 mm or more may be used.
- the refrigerant piping of the refrigeration cycle apparatus is connected to the first flow path 10A (first opening of the present invention) of the first plate-like body 111.
- the first flow path 10A of the first plate-like body 111 communicates with the connection pipe 52 in FIG.
- a circular first flow path 10 ⁇ / b> A is opened at substantially the center of the first plate-like body 111 and the second plate-like body 121. Further, in the second plate-like body 122, a pair of second flow paths 11A are similarly opened in a circular shape at positions facing the first flow path 10A. Furthermore, four third flow paths 12A are opened circularly at positions facing the second flow paths 11A of the first plate 114 and the second plate 123. And the 3rd flow path 12A (2nd opening of this invention) of the 1st plate-shaped body 114 is connected with the windward heat exchanger tube 22 in FIG.
- the first flow path 10A, the second flow path 11A, and the third flow path 12A are formed when the first plate bodies 111, 112, 113, and 114 and the second plate bodies 121, 122, and 123 are stacked. , Are positioned and opened so as to communicate with each other.
- first plate-like body 112 is formed with a first branch channel 10B
- first plate-like body 113 is formed with a second branch channel 11B.
- the first flow passage 10A is connected to the center of the first branch flow passage 10B formed in the first plate-like body 112.
- the second flow path 11A is connected to both ends of the first branch flow path 10B.
- a second flow path 11A is connected to the center of the second branch flow path 11B formed in the first plate 113, and a third flow path is provided at both ends of the second branch flow path 11B. 12A is connected.
- the first plate-like bodies 111, 112, 113, 114 and the second plate-like bodies 121, 122, 123 are provided with positioning means 30 for determining the positions when the respective plate materials are laminated.
- the positioning means 30 is formed as a through hole, and positioning can be performed by inserting a pin through the through hole.
- it is good also as a structure which forms a recessed part in one of each board
- the refrigerant that has flowed into the second flow path 11A goes straight through the second flow path 11A in the same direction as the refrigerant that travels through the first flow path 10A.
- This refrigerant collides with the surface of the second plate-like body 123 in the second branch flow path 11B of the first plate-like body 113 and splits up and down in the direction of gravity.
- the divided refrigerant travels to both ends of the second branch flow path 11B and flows into the four third flow paths 12A.
- the refrigerant that has flowed into the third flow path 12A goes straight through the third flow path 12A in the same direction as the refrigerant that travels through the second flow path 11A. And it flows out out of the 3rd flow path 12A, flows in through the flow path of the holding member 5, and is uniformly distributed and inflowed into the several windward heat exchanger tube 22 of the windward heat exchange part 21.
- the splitting flow channel 51a of the first embodiment the example of the laminated header 51 having four branches passing through the two branch channels is shown, but the number of branches is not particularly limited.
- the configuration of the openings 20A, 20B, 20C, and 20D in the second plate-like bodies 121, 122, and 123 will be described with reference to FIG.
- the opening 20A does not communicate with the first flow path 10A, and the refrigerant does not flow in.
- the four sides around the opening 20A are formed continuously, and when the first plate 111, 112 is brazed to both surfaces of the second plate 121, the inside of the opening 20A is a sealed space. It becomes.
- the rectangular second plate 122 has two substantially rectangular openings 20B at both ends in the longitudinal direction.
- the opening 20B is not in communication with the second flow path 11A, and the refrigerant does not flow in.
- the four sides around the opening 20B are formed continuously, and when the first plate bodies 112 and 113 are brazed to both surfaces of the second plate body 122, the inside of the opening 20B is a sealed space. It becomes.
- the rectangular second plate-like body 123 two substantially rectangular openings 20C are opened at both ends in the longitudinal direction. Furthermore, one opening 20D is opened at the center of the second plate-like body 122 in the longitudinal direction. The openings 20C and 20D are not in communication with the third flow path 12A, and the refrigerant does not flow in. Further, the four sides around the openings 20C and 20D are continuously formed.
- the interior of 20D is a sealed space.
- openings 20A, 20B, 20C, and 20D By forming such openings 20A, 20B, 20C, and 20D in the second plate bodies 121, 122, and 123, it is possible to reduce the brazing material clad on the second plate bodies 121, 122, and 123. it can. Further, when the laminated header 51 is brazed, fillets are formed on the inner peripheral surfaces of the openings 20A, 20B, 20C, and 20D. Then, the brazing material clad on the second plate-like bodies 121, 122, 123 is reduced, and the surplus brazing material is stored as fillets on the inner peripheral surfaces of the openings 20A, 20B, 20C, 20D.
- brazing material does not flow into the merging channel 51a, and the cause of defects such as blockage and narrowing of the channel can be eliminated. Further, since the weight of the multilayer header 51 itself is reduced, the heat capacity is reduced and the brazing time can be shortened.
- the shape of the openings 20A, 20B, 20C, and 20D is a substantially rectangular shape as an example, various shapes such as a circle, an ellipse, and a triangle can be adopted.
- FIG. 5 is a cross-sectional view taken along line AA in FIG.
- the windward joint member 41 is joined to each of the one end 22 b and the other end 22 c of the windward heat transfer tube 22.
- a flow path is formed inside the windward joint member 41.
- One end of the flow path has a shape along the outer peripheral surface of the windward heat transfer tube 22, and the other end has a circular shape.
- the leeward side joint member 42 is joined to each of the one end portion 32 b and the other end portion 32 c of the leeward side heat transfer tube 32.
- a flow path is formed inside the leeward side joint member 42.
- One end of the flow path has a shape along the outer peripheral surface of the leeward heat transfer tube 32, and the other end has a circular shape.
- the windward joint member 41 joined to the other end 22c of the windward heat transfer tube 22 and the leeward joint member 42 joined to one end 32b of the leeward heat transfer tube 32 are connected to the crossover tube 43. Connected by.
- the row crossing tube 43 is, for example, a circular tube bent in an arc shape.
- a connection pipe 57 of the laminated header 51 is connected to the windward joint member 41 joined to one end 22 b of the windward heat transfer tube 22.
- a connection pipe 64 of the tubular header 61 is connected to the leeward side joint member 42 joined to the other end 32 c of the leeward side heat transfer tube 32.
- the windward side joint member 41 and the connection pipe 57 may be integrated.
- the leeward side joint member 42 and the connection piping 64 may be integrated.
- the windward side joint member 41, the leeward side joint member 42, and the crossover pipe 43 may be integrated.
- FIG. 6 is a diagram for explaining the connection of the heat exchange unit and the mixing and mixing unit in the modification of the heat exchanger according to the first embodiment. 6 is a cross-sectional view taken along the line AA in FIG. As shown in FIG. 5, the windward side heat transfer tube 22 and the leeward side heat transfer tube 32 include one end 22 b and the other end 22 c of the windward side heat transfer tube 22 and one of the leeward side heat transfer tubes 32.
- the end portion 32b and the other end portion 32c may be arranged in a zigzag shape when the heat exchanger 1 is viewed from the side, and as shown in FIG. You may arrange
- FIG. 7 and 8 are diagrams showing a configuration of an air conditioner to which the heat exchanger according to Embodiment 1 is applied.
- FIG. 7 has shown the case where the air conditioning apparatus 91 performs heating operation.
- FIG. 8 shows a case where the air conditioner 91 performs a cooling operation.
- the air conditioner 91 includes a compressor 92, a four-way valve 93, an outdoor heat exchanger (heat source side heat exchanger) 94, a throttle device 95, and an indoor heat exchanger. (Load side heat exchanger) 96, outdoor fan (heat source side fan) 97, indoor fan (load side fan) 98, and control device 99.
- the compressor 92, the four-way valve 93, the outdoor heat exchanger 94, the expansion device 95, and the indoor heat exchanger 96 are connected by a refrigerant pipe to form a refrigerant circulation circuit.
- the four-way valve 93 may be another flow path switching device.
- the outdoor heat exchanger 94 is the heat exchanger 1.
- the heat exchanger 1 is provided such that the laminated header 51 is disposed on the windward side of the air flow generated by driving the outdoor fan 97 and the cylindrical header 61 is disposed on the leeward side.
- the outdoor fan 97 may be provided on the leeward side of the heat exchanger 1 or may be provided on the leeward side of the heat exchanger 1.
- a compressor 92, a four-way valve 93, a throttle device 95, an outdoor fan 97, an indoor fan 98, various sensors, and the like are connected to the control device 99.
- the control device 99 By switching the flow path of the four-way valve 93 by the control device 99, the heating operation and the cooling operation are switched.
- the condensed refrigerant enters a high-pressure supercooled liquid state, flows out of the indoor heat exchanger 96, and becomes a low-pressure gas-liquid two-phase refrigerant by the expansion device 95.
- the low-pressure gas-liquid two-phase refrigerant flows into the outdoor heat exchanger 94, exchanges heat with the air supplied by the outdoor fan 97, and evaporates.
- the evaporated refrigerant enters a low-pressure superheated gas state, flows out of the outdoor heat exchanger 94, and is sucked into the compressor 92 through the four-way valve 93. That is, during the heating operation, the outdoor heat exchanger 94 acts as an evaporator.
- the refrigerant flows into the split flow channel 51 a of the stacked header 51 and is distributed, and flows into one end 22 b of the windward heat transfer tube 22 of the windward heat exchange unit 21.
- the refrigerant that has flowed into one end 22 b of the windward heat transfer tube 22 passes through the turn-back portion 22 a, reaches the other end 22 c of the windward heat transfer tube 22, and exchanges leeward heat through the crossover tube 43. It flows into one end portion 32 b of the leeward heat transfer tube 32 of the portion 31.
- the refrigerant that has flowed into one end portion 32 b of the leeward heat transfer tube 32 passes through the turn-up portion 32 a, reaches the other end portion 32 c of the leeward heat transfer tube 32, and flows into the mixed flow passage 61 a of the tubular header 61. To join.
- the high-pressure and high-temperature gas refrigerant discharged from the compressor 92 flows into the outdoor heat exchanger 94 through the four-way valve 93, exchanges heat with the air supplied by the outdoor fan 97, and condenses.
- the condensed refrigerant enters a high-pressure supercooled liquid state (or a gas-liquid two-phase state having a low dryness), flows out of the outdoor heat exchanger 94, and enters a low-pressure gas-liquid two-phase state by the expansion device 95.
- the low-pressure gas-liquid two-phase refrigerant flows into the indoor heat exchanger 96 and evaporates by heat exchange with the air supplied by the indoor fan 98, thereby cooling the room.
- the evaporated refrigerant becomes a low-pressure superheated gas state, flows out of the indoor heat exchanger 96, and is sucked into the compressor 92 through the four-way valve 93. That is, during the cooling operation, the outdoor heat exchanger 94 functions as a condenser.
- the refrigerant flows into the split flow passage 61a of the cylindrical header 61 and is distributed, and then flows into the other end 32c of the leeward heat transfer tube 32 of the leeward heat exchanger 31.
- the refrigerant that has flowed into the other end portion 32 c of the leeward heat transfer tube 32 passes through the turn-up portion 32 a, reaches one end portion 32 b of the leeward heat transfer tube 32, and exchanges windward heat through the crossover tube 43. It flows into the other end 22c of the windward heat transfer tube 22 of the section 21.
- the refrigerant that has flowed into the other end 22 c of the windward heat transfer tube 22 passes through the turn-back portion 22 a, reaches one end 22 b of the windward heat transfer tube 22, and flows into the mixed flow channel 51 a of the laminated header 51. To join.
- FIG. A stacked header according to the second embodiment will be described. Note that description overlapping or similar to that in Embodiment 1 is appropriately simplified or omitted.
- the laminated header 51 according to the second embodiment is different from the laminated header 51 according to the first embodiment only in the configuration of the opening in the second plate-like body, this point will be described.
- a configuration in which the multilayer header 51 according to the second embodiment is applied to a heat exchanger and an air conditioner is the same as the multilayer header 51 according to the first embodiment.
- FIG. 9 is an exploded perspective view of the stacked header according to the second embodiment.
- the configurations of the first plate-like bodies 111, 112, 113, 114 and the second plate-like bodies 121, 122, 123 are the same as those in the first embodiment.
- the configuration of the openings 20A, 20B, 20C, and 20D in the second plate-like bodies 121, 122, and 123 will be described with reference to FIG.
- two substantially rectangular openings 20A are opened at both ends in the longitudinal direction.
- the opening 20A does not communicate with the first flow path 10A, and the refrigerant does not flow in. Further, at least one of the four sides around the opening 20A is formed with a notch 24 communicating with the atmosphere as shown in the enlarged view of FIG. Therefore, when the first plate-like bodies 111 and 112 are brazed on both surfaces of the second plate-like body 121, the inside of the opening 20A becomes an open space communicating with the atmosphere.
- the rectangular second plate 122 has two substantially rectangular openings 20B at both ends in the longitudinal direction.
- the opening 20B is not in communication with the second flow path 11A, and the refrigerant does not flow in.
- a cutout portion 24 communicating with the atmosphere is formed in at least one of the four sides around the opening 20B. Therefore, when the first plate bodies 112 and 113 are brazed to both surfaces of the second plate body 122, the inside of the opening 20B becomes an open space communicating with the atmosphere.
- two substantially rectangular openings 20C are opened at both ends in the longitudinal direction.
- one opening 20D is opened at the center of the second plate-like body 122 in the longitudinal direction.
- the openings 20C and 20D are not in communication with the third flow path 12A, and the refrigerant does not flow in.
- a cutout portion 24 communicating with the atmosphere is formed in at least one of the four sides around the openings 20C and 20D. Therefore, when the first plate-like bodies 113 and 114 are brazed to both surfaces of the second plate-like body 123, the openings 20C and 20D become open spaces that communicate with the atmosphere.
- openings 20A, 20B, 20C, and 20D By forming such openings 20A, 20B, 20C, and 20D in the second plate bodies 121, 122, and 123, it is possible to reduce the brazing material clad on the second plate bodies 121, 122, and 123. it can. Further, the surplus brazing material is stored as fillets on the inner peripheral surfaces of the openings 20A, 20B, 20C, and 20D, so that the surplus brazing material does not flow into the split flow channel 51a. Causes of defects such as blockage and narrowing can be eliminated.
- the brazing material that has flowed into the openings 20A, 20B, 20C, and 20D with a simple configuration can be obtained. It flows toward the atmospheric space with relatively low pressure. Thereby, the molten brazing material in the openings 20A, 20B, 20C and 20D does not lose its place, and the surplus brazing material flows into the mixed flow channel 51a with a simple configuration provided with the notch 24. It can be avoided. Further, since the weight of the multilayer header 51 itself is reduced, the heat capacity is reduced and the brazing time can be shortened.
- the shape of the openings 20A, 20B, 20C, and 20D is a substantially rectangular shape as an example, various shapes such as a circle, an ellipse, and a triangle can be adopted.
- FIG. 3 A stacked header according to Embodiment 3 will be described. Note that descriptions overlapping or similar to the first and second embodiments are appropriately simplified or omitted.
- the first plate bodies 111, 112, 113, and 114 and the second plate bodies 121, 122, and 123 have the same shape in plan view.
- the laminated header 51 according to the third embodiment is different in that the shape of the outer shape is different in a plate-like body.
- a configuration in which the multilayer header 51 according to the third embodiment is applied to a heat exchanger and an air conditioner is the same as the multilayer header 51 according to the first and second embodiments.
- FIG. 10 is an exploded perspective view of the multilayer header according to the third embodiment.
- FIG. 11 is a side view of the stacked header according to the third embodiment.
- the stacked header 51 shown in FIGS. 10 and 11 is, like the stacked header 51 according to the first and second embodiments, for example, first plate bodies 111, 112, 113, 114 having a rectangular shape, It is comprised with the 2nd plate-shaped body 121,122,123 pinched
- a brazing material is clad (coated) on both sides or one side of the second plate-like bodies 121, 122, 123.
- the first plate-like bodies 111, 112, 113, and 114 are stacked via the second plate-like bodies 121, 122, and 123, and are integrally joined by brazing. At this time, the same refrigerant flow path as the mixed flow path 51 a according to the first and second embodiments is formed inside the stacked header 51.
- the laminated header 51 is a first plate-like body 111, 112, 113, 114 and a second plate-like body 121, 122, 123, and is long in plan view.
- the lengths in the direction are different dimensions.
- the length in the short direction (the front-rear direction in FIG. 11) in plan view is the same for each plate. More specifically, the longitudinal dimension of the first plate-like body 114 to which the windward heat transfer tube 22 is connected is configured to be the longest in comparison with other plate-like bodies.
- both end portions in the longitudinal direction of the respective plate-like bodies are cut as cut portions 25, and the two longitudinal dimensions of the first plate-like bodies 112 and 113 and the second plate-like bodies 122 and 123 are set to the same dimension. Configure the second longest.
- the first plate-like body 111 and the second plate-like body 121 have the same length in the longitudinal direction, and both end portions are cut as cut portions 25 to form the shortest.
- each plate-like body is defined by cutting unnecessary portions on both ends from the openings 20A, 20B, and 20C according to the first and second embodiments as cut portions 25. More specifically, the length in the longitudinal direction of the first plate-like body 111 and the second plate-like body 121 is determined by cutting both ends at the side of the first flow path 10A side of the opening 20A in FIGS. The cut portion 25 is used. Similarly, the longitudinal lengths of the first plate bodies 112 and 113 and the second plate bodies 122 and 123 are the same as the second flow path 11A side of the openings 20B and 20C in FIGS. Both end portions are cut at the side on the 12A side to form cut portions 25.
- each plate-like body is cut from the first plate-like body 114 to which the windward side heat transfer tube 22 is connected to the first plate-like body 111 to which the connection pipe 52 is connected, and becomes gradually shorter.
- the 2nd plate-shaped body 121,122,123 which is unnecessary when forming the mixing
- FIG. Therefore, since the brazing material clad by the second plate-like bodies 121, 122, 123 is reduced, the surplus brazing material does not flow into the mixed flow channel 51a, and causes such as blockage and narrowing of the channel. Can be eliminated.
- the order of assembling the first plate-like bodies 111, 112, 113, 114 and the second plate-like bodies 121, 122, 123 sandwiched between the first plate-like bodies can be easily specified, Productivity can be improved. Further, since the weight of the multilayer header 51 itself is reduced, the heat capacity is reduced and the brazing time can be shortened. And cost can be reduced by cutting an unnecessary plate-shaped body part other than the mixing
- the opening 20D formed on the center side of the second plate-like body according to the first and second embodiments can be employed.
- unnecessary brazing material can be further reduced, and an effect of eliminating the cause of defects such as blockage and narrowing of the split flow channel 51a can be obtained.
- Embodiment 4 FIG. A stacked header according to the fourth embodiment will be described. Note that description overlapping or similar to that in Embodiment 1 is appropriately simplified or omitted.
- the multilayer header 51 according to the fourth embodiment is different from the multilayer header 51 according to the first embodiment in the configuration of the opening in the second plate-like body and the configuration of the connecting hole that allows the opening to communicate with the atmosphere. Therefore, this point will be described.
- a configuration in which the multilayer header 51 according to the fourth embodiment is applied to a heat exchanger and an air conditioner is the same as the multilayer header 51 according to the first embodiment.
- FIG. 12 is an exploded perspective view of the stacked header according to the fourth embodiment.
- the basic configurations of the first plate-like bodies 111, 112, 113, 114 and the second plate-like bodies 121, 122, 123 are the same as those in the first embodiment.
- the configuration of the openings 20A, 20B, 20C, 20D, and 20E in the second plate bodies 121, 122, and 123 will be described with reference to FIG.
- two substantially ax-shaped openings 20A which are a combination of a rectangular opening and a long opening, are opened from two ends in the longitudinal direction to the center.
- the opening 20A does not communicate with the first flow path 10A, and the refrigerant does not flow in.
- the rectangular second plate 122 has two substantially rectangular openings 20B at both ends in the longitudinal direction.
- the second plate-like body 122 has two substantially triangular openings 20E at the center in the longitudinal direction.
- the opening 20B and the opening 20E do not communicate with the second flow path 11A, and the refrigerant does not flow in.
- two substantially rectangular openings 20C are opened at both ends in the longitudinal direction. Furthermore, one opening 20D is opened at the center of the second plate-like body 122 in the longitudinal direction. The opening 20C and the opening 20D are not in communication with the third flow path 12A, and the refrigerant does not flow in.
- a circular atmosphere opening hole 26A that communicates with one of the opening portions 20A of the second plate-like body 121 in a state where the respective plate-like bodies are stacked is opened at a substantially central portion in the longitudinal direction.
- the first plate 112 has two openings 20A of the second plate 121 and two two of the second plate 122 in a state where the respective plates are laminated at the substantially central portion in the longitudinal direction.
- Two circular connecting holes 26B communicating with the opening 20E are opened.
- the first plate 112 has two openings 20A of the second plate 121 and two openings of the second plate 122 in a state where the respective plates are stacked at both ends in the longitudinal direction.
- Two circular connecting holes 26D communicating with the portion 20B are opened.
- the first plate 113 has two openings 20E of the second plate 122 and one of the second plates 123 in a state where the respective plates are stacked in the substantially central portion in the longitudinal direction.
- Two circular connecting holes 26C communicating with the opening 20D are opened.
- the first plate 113 has two openings 20B of the second plate 122 and two openings of the second plate 123 in a state where the respective plates are stacked on both ends in the longitudinal direction.
- Two circular connecting holes 26E communicating with the portion 20C are opened.
- the atmosphere opening hole 26A, the connecting holes 26B, 26C, 26D, and 26E that are opened in the plate-like body and the openings 20A, 20B, 20C, 20D, and 20E communicate with each other to the atmosphere.
- An open channel is formed. That is, one atmosphere opening hole 26A communicating with the atmosphere, each connecting hole 26B, 26C, 26D, 26E, and each opening 20A, 20B, 20C, 20D, 20E are stacked in the stacking direction of the plate-like bodies as shown in FIG. To form a connection channel.
- the connection flow path is formed as a branch flow path that branches so as to communicate the plurality of openings 20A, 20B, 20C, 20D, and 20E from one atmosphere opening hole 26A.
- the connecting channel branches from one atmosphere opening hole 26A into two channels at the opening 20A, and connects the opening 20A, the connecting hole 26B, the opening 20E, the connecting hole 26C, and the opening 20D.
- the connection channel connects the opening 20A, the connection hole 26D, the opening 20B, the connection hole 26E, and the opening 20C. Therefore, the plurality of openings 20A, 20B, 20C, 20D, and 20E serve as open spaces that communicate with the atmosphere through one atmosphere opening hole 26A.
- the air opening hole 26A and the connection holes 26B, 26C, 26D, and 26E are formed to have a smaller opening area than the opening.
- the brazing material clad by the second plate bodies 121, 122, and 123 is reduced. be able to. Further, since the surplus brazing material is stored as fillets on the inner peripheral surfaces of the openings 20A, 20B, 20C, 20D, and 20E, the surplus brazing material does not flow into the mixed flow channel 51a. Causes of defects such as blockage and narrowing of the road can be eliminated.
- the excess brazing material that has flowed into the openings 20A, 20B, 20C, 20D, and 20E during the brazing process has a relatively high pressure. It flows toward a low atmospheric space. Thereby, the molten brazing material in the openings 20A, 20B, 20C, 20D, and 20E does not lose its place, and the surplus brazing material can be prevented from flowing into the mixed flow channel 51a. Further, since the weight of the multilayer header 51 itself is reduced, the heat capacity is reduced and the brazing time can be shortened.
- the shape of the openings 20A, 20B, 20C, 20D, and 20E is shown as an example in FIG. 12, various shapes such as a circle, an ellipse, and a triangle can be adopted.
- atmosphere was shown, you may provide a some atmospheric
- the air release hole 26A may be opened in the first plate-like body 114 to form a connection channel.
- silicon rubber is finally attached to the atmosphere opening hole 26A communicating with the atmosphere, and the openings 20A, 20B, 20C, 20D, and 20E become sealed spaces.
- one atmosphere opening hole 26A communicating with the atmosphere it is possible to reduce the labor for attaching silicon rubber, and water can enter the openings 20A, 20B, 20C, 20D, and 20E through the atmosphere opening hole 26A. And the corrosion of each plate-like body can be prevented.
- the total number of first plate bodies 111, 112, 113, 114 and second plate bodies 121, 122, 123 sandwiched between the first plate bodies is 7 in total.
- the number of the plate-like body is not particularly limited. Further, the number of branching of the distribution branch channel is not limited to these embodiments.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
このような積層型ヘッダにおいて、クラッドされたろう材の量(容積)が、フィレットが形成される板状体の外周や板状体の開口部の内周の長さに対して相対的に多い場合には余剰となったろう材が発生し、積層型ヘッダの冷媒流路部分に多量に流入することで流路が閉塞してしまう問題があった。
なお、以下で説明する構成、動作等は、一例にすぎず、本発明に係る積層型ヘッダ、熱交換器、及び、空気調和装置は、そのような構成、動作等である場合に限定されない。また、各図において、同一又は類似するものには、同一の符号を付すか、又は、符号を付すことを省略している。また、細かい構造については、適宜図示を簡略化又は省略している。また、重複又は類似する説明については、適宜簡略化又は省略している。
実施の形態1に係る積層型ヘッダ、熱交換器、及び、空気調和装置について説明する。
<熱交換器の構成>
(熱交換器の概略構成)
以下に、実施の形態1に係る熱交換器の概略構成について説明する。
図1は、実施の形態1に係る熱交換器の、斜視図である。
図1に示されるように、熱交換器1は、熱交換部2と、分配合流部3と、を有する。
なお、分配合流流路51aは、本発明の連通穴に相当する。
以下に、実施の形態1に係る熱交換器1の積層型ヘッダ51の構成について説明する。
図2は、実施の形態1に係る積層型ヘッダにおける分解斜視図である。
図3は、実施の形態1に係る積層型ヘッダにおける側面図である。
ろう付け接合前の第1板状体111、112、113、114には、ろう材がクラッド(塗布)されておらず、第2板状体121、122、123の両面又は片面には、ろう材がクラッド(塗布)されている。この状態から第1板状体111、112、113、114を、第2板状体121、122、123を介して積層し、加熱炉で加熱してろう付け接合する。第1板状体111、112、113、114と、第2板状体121、122、123とは、例えば、厚さ1~10mm程度であり、アルミニウム製である。
なお、各板状体は、プレス加工や切削加工によって加工される。プレス加工によって加工する場合は、プレス加工が可能な厚みが5mm以下の板材を使用し、切削加工によって加工する場合は、厚みが5mm以上の板材を使用してもよい。
さらに、第1板状体114、及び、第2板状体123の第2流路11Aに対して対向する位置には第3流路12Aが4箇所、円形で開口している。そして、第1板状体114の第3流路12A(本発明の第2開口)は、図1における風上側伝熱管22と連通している。
また、第1板状体113に形成された第2分岐流路11Bの中央には、第2流路11Aが接続されるとともに、第2分岐流路11Bの両端部には、第3流路12Aが接続される。
このように第1板状体111、112、113、114、及び、第2板状体121、122、123を積層してろう付けすることで各流路を接続し分配合流流路51aを形成することができる。
具体的に位置決め手段30は、貫通穴として形成され、貫通穴にピンを挿通することにより位置決めを行うことができる。また、対向する各板材の一方に凹部を形成するとともに、他方に凸部を設け、両板材を積層した場合に凹部と凸部とが嵌合する構成としてもよい。
次に、積層型ヘッダ51内の分配合流流路51a、及び、その冷媒の流れについて説明する。
熱交換器1が蒸発器として機能する場合、気液二相流の冷媒が、第1板状体111の第1流路10Aから積層型ヘッダ51内に流入する。流入した冷媒は、第1流路10A内を直進し、第1板状体112の第1分岐流路10B内で第2板状体122の表面に衝突し、重力方向における上下に分流する。
分流した冷媒は第1分岐流路10Bの両端部まで進み一対の第2流路11A内に流入する。
分流した冷媒は第2分岐流路11Bの両端部まで進み4つの第3流路12A内に流入する。
そして第3流路12Aから流出し、保持部材5の流路を介して風上側熱交換部21の複数の風上側伝熱管22に均一に分配されて流入する。
なお、実施の形態1の分配合流流路51aでは、2回分岐流路を通り、4分岐とした積層型ヘッダ51の例を示したが、分岐の回数は特段限定されない。
ここで、第2板状体121、122、123における開口部20A、20B、20C、20Dの構成について図2を用いて説明する。
長方形形状の第2板状体121において長手方向の両端部には、略矩形形状の開口部20Aが2箇所開口している。
この開口部20Aは、第1流路10Aとは連通しておらず、冷媒が流入することはない。また、開口部20Aの周囲の4辺は連続して形成されており、第2板状体121の両面に第1板状体111、112がろう付けされた場合に開口部20A内は密閉空間となる。
開口部20C、20Dも第3流路12Aとは連通しておらず、冷媒が流入することはない。また、開口部20C、20Dの周囲の4辺は連続して形成されており、第2板状体123の両面に第1板状体113、114がろう付けされた場合には開口部20C、20D内は密閉空間となる。
また、積層型ヘッダ51自体の重量が軽くなることで熱容量が減少し、ろう付け時間を短縮することができる。
以下に、実施の形態1に係る熱交換器の熱交換部及び分配合流部の接続について説明する。
図4及び図5は、実施の形態1に係る熱交換器の、熱交換部及び分配合流部の接続を説明する図である。なお、図5は、図4におけるA-A線での断面図である。
なお、図6は、図4におけるA-A線に相当する線での断面図である。
なお、風上側伝熱管22及び風下側伝熱管32は、図5に示されるように、風上側伝熱管22の一方の端部22b及び他方の端部22cと、風下側伝熱管32の一方の端部32b及び他方の端部32cと、が、熱交換器1を側方視した状態において千鳥状になるように、配設されていてもよく、また、図6に示されるように、碁盤状になるように、配設されていてもよい。
以下に、実施の形態1に係る熱交換器が適用される空気調和装置の構成について説明する。
図7及び図8は、実施の形態1に係る熱交換器が適用される空気調和装置の、構成を示す図である。なお、図7は、空気調和装置91が暖房運転する場合を示している。また、図8は、空気調和装置91が冷房運転する場合を示している。
以下に、実施の形態1に係る熱交換器、及び、その熱交換器が適用される空気調和装置の動作について説明する。
(暖房運転時の熱交換器及び空気調和装置の動作)
以下に、図7を用いて、暖房運転時の冷媒の流れについて説明する。
圧縮機92から吐出される高圧高温のガス状態の冷媒は、四方弁93を介して室内熱交換器96に流入し、室内ファン98によって供給される空気との熱交換によって凝縮することで、室内を暖房する。凝縮した冷媒は、高圧の過冷却液状態となり、室内熱交換器96から流出し、絞り装置95によって、低圧の気液二相状態の冷媒となる。低圧の気液二相状態の冷媒は、室外熱交換器94に流入し、室外ファン97によって供給される空気と熱交換を行い、蒸発する。蒸発した冷媒は、低圧の過熱ガス状態となり、室外熱交換器94から流出し、四方弁93を介して圧縮機92に吸入される。つまり、暖房運転時には、室外熱交換器94は、蒸発器として作用する。
以下に、図8を用いて、冷房運転時の冷媒の流れについて説明する。
圧縮機92から吐出される高圧高温のガス状態の冷媒は、四方弁93を介して室外熱交換器94に流入し、室外ファン97によって供給される空気と熱交換を行い、凝縮する。凝縮した冷媒は、高圧の過冷却液状態(もしくは低乾き度の気液二相状態)となり、室外熱交換器94から流出し、絞り装置95によって、低圧の気液二相状態となる。低圧の気液二相状態の冷媒は、室内熱交換器96に流入し、室内ファン98によって供給される空気との熱交換によって蒸発することで、室内を冷却する。蒸発した冷媒は、低圧の過熱ガス状態となり、室内熱交換器96から流出し、四方弁93を介して圧縮機92に吸入される。つまり、冷房運転時には、室外熱交換器94は、凝縮器として作用する。
実施の形態2に係る積層型ヘッダについて説明する。
なお、実施の形態1と重複又は類似する説明は、適宜簡略化又は省略している。
図9は、実施の形態2に係る積層型ヘッダにおける分解斜視図である。
第1板状体111、112、113、114、及び、第2板状体121、122、123の各構成については実施の形態1と同じである。
第2板状体121、122、123における開口部20A、20B、20C、20Dの構成について図2を用いて説明する。
長方形形状の第2板状体121において長手方向の両端部には、略矩形形状の開口部20Aが2箇所開口している。
開口部20C、20Dも第3流路12Aとは連通しておらず、冷媒が流入することはない。また、開口部20C、20Dの周囲の4辺のうち少なくとも1箇所には大気と連通する切欠部24が形成されている。よって、第2板状体123の両面に第1板状体113、114がろう付けされた場合に開口部20C、20D内は大気と連通する開放空間となる。
これにより、開口部20A、20B、20C、20D内の溶融したろう材が行き場を失うことがなく、切欠部24を設けた簡単な構成で余剰ろう材が分配合流流路51a内へ流れ込むことを回避することができる。
また、積層型ヘッダ51自体の重量が軽くなることで熱容量が減少し、ろう付け時間を短縮することができる。
実施の形態3に係る積層型ヘッダについて説明する。
なお、実施の形態1、2と重複又は類似する説明は、適宜簡略化又は省略している。
図10は、実施の形態3に係る積層型ヘッダにおける分解斜視図である。
図11は、実施の形態3に係る積層型ヘッダにおける側面図である。
図10、11に示す積層型ヘッダ51は、実施の形態1、2に係る積層型ヘッダ51と同様に、例えば長方形形状の第1板状体111、112、113、114と、この各第1板状体の間に挟み込まれる第2板状体121、122、123とで構成されている。
第2板状体121、122、123の両面又は片面には、ろう材がクラッド(塗布)される。第1板状体111、112、113、114は、第2板状体121、122、123を介して積層され、ろう付けにより一体に接合される。このとき、積層型ヘッダ51の内部に実施の形態1、2に係る分配合流流路51aと同一の冷媒流路が形成される。
より具体的には、風上側伝熱管22が接続される第1板状体114の長手方向の寸法を他の板状体に比べて一番長く構成する。次いで、各板状体の長手方向の両端部を切取部分25として切断し、第1板状体112、113と第2板状体122、123の4枚の長手方向の寸法を同一寸法として二番目に長く構成する。最後に、第1板状体111と第2板状体121の2枚の長手方向を同一寸法とし、両端部を切取部分25として切断して一番短く構成する。
より具体的には、第1板状体111と第2板状体121の長手方向長さは、図2、図9における開口部20Aの第1流路10A側の辺で両端部を切断し切取部分25としたものである。同様に、第1板状体112、113と第2板状体122、123の長手方向長さは、図2、図9における開口部20B、20Cの第2流路11A側または第3流路12A側の辺で両端部を切断し切取部分25としたものである。
また、積層型ヘッダ51自体の重量が軽くなることで熱容量が減少し、ろう付け時間を短縮することができる。
そして、分配合流流路51a以外の不要な板状体部分を予めカットすることで、コストを削減することができる。
実施の形態4に係る積層型ヘッダについて説明する。
なお、実施の形態1と重複又は類似する説明は、適宜簡略化又は省略している。
図12は、実施の形態4に係る積層型ヘッダにおける分解斜視図である。
第1板状体111、112、113、114、及び、第2板状体121、122、123の基本構成については実施の形態1と同じである。
第2板状体121、122、123における開口部20A、20B、20C、20D、20Eの構成について図12を用いて説明する。
この開口部20Aは、第1流路10Aとは連通しておらず、冷媒が流入することはない。
第1板状体111には、長手方向の略中央部に、各板状体を積層した状態で第2板状体121の開口部20Aの一方に連通する円形の大気開放穴26Aが開口している。
また、第1板状体112には、長手方向の略中央部に、各板状体を積層した状態で第2板状体121の2つの開口部20A及び第2板状体122の2つの開口部20Eに連通する円形の2つの連結穴26Bが開口している。
また、第1板状体112には、長手方向の両端部に、各板状体を積層した状態で第2板状体121の2つの開口部20A及び第2板状体122の2つの開口部20Bに連通する円形の2つの連結穴26Dが開口している。
また、第1板状体113には、長手方向の略中央部に、各板状体を積層した状態で第2板状体122の2つの開口部20E及び第2板状体123の1つの開口部20Dに連通する円形の2つの連結穴26Cが開口している。
また、第1板状体113には、長手方向の両端部に、各板状体を積層した状態で第2板状体122の2つの開口部20B及び第2板状体123の2つの開口部20Cに連通する円形の2つの連結穴26Eが開口している。
各板状体が一体化すると、板状体に開口した大気開放穴26A、連結穴26B、26C、26D、26E、及び、開口部20A、20B、20C、20D、20Eがそれぞれ連通して大気に開放された流路を形成する。
すなわち、大気と連通する1つの大気開放穴26A、各連結穴26B、26C、26D、26E、及び、各開口部20A、20B、20C、20D、20Eを図12のように板状体の積層方向に連通させ、連結流路を形成する。連結流路は、1つの大気開放穴26Aから複数の開口部20A、20B、20C、20D、20Eを連通するように分岐する分岐流路として形成される。連結流路は、1つの大気開放穴26Aから開口部20Aで2つの流路に分岐し、開口部20A、連結穴26B、開口部20E、連結穴26C、開口部20Dを連結する。また、連結流路は、開口部20A、連結穴26D、開口部20B、連結穴26E、開口部20Cを連結する。よって、複数の開口部20A、20B、20C、20D、20Eは、1つの大気開放穴26Aで大気と連通する開放空間となる。
なお、大気開放穴26A、及び、連結穴26B、26C、26D、26Eは、開口部に比べて開口面積が小さく形成されている。
これにより、開口部20A、20B、20C、20D、20E内の溶融したろう材が行き場を失うことがなく、余剰ろう材が分配合流流路51a内へ流れ込むことを回避することができる。
また、積層型ヘッダ51自体の重量が軽くなることで熱容量が減少し、ろう付け時間を短縮することができる。
また、大気に連通する大気開放穴26Aを1つ形成した例を示したが、複数の大気開放穴を設けてもよい。さらに、第1板状体114に大気開放穴26Aを開口し、連結流路を形成してもよい。
大気に連通する大気開放穴26Aを1つとすることで、シリコンゴムを取り付ける手間が少なくなると共に、大気開放穴26Aを通って水が開口部20A、20B、20C、20D、20E内に進入する可能性が低くなり、各板状体の腐食を防止することができる。
Claims (13)
- 複数の第1板状体と複数の第2板状体とを交互に積層して構成される積層型ヘッダであって、
積層方向における前記複数の第1板状体のうち一端に配置された一端側第1板状体には1つの第1開口が形成され、
積層方向における前記複数の第1板状体のうち前記一端側第1板状体に対して他端に配置された他端側第1板状体には複数の第2開口が形成され、
前記複数の第1板状体と前記複数の第2板状体には、前記1つの第1開口と前記複数の第2開口とを接続する連通穴が形成され、
前記複数の第2板状体の前記連通穴が形成されていない部分には、開口部が形成され、前記開口部は、大気に対して連通する積層型ヘッダ。 - 前記複数の第2板状体における前記開口部の周囲には、前記開口部を大気に対して連通する切欠部が形成された請求項1に記載の積層型ヘッダ。
- 前記複数の第1板状体には、前記開口部を大気に対して連通する連結穴が形成された請求項1に記載の積層型ヘッダ。
- 前記連結穴は、前記開口部に比べて開口面積が小さく形成された請求項3に記載の積層型ヘッダ。
- 前記開口部は、複数形成され、
複数の前記開口部と、前記連結穴と、を全て連通して連結流路が形成され、
前記連結流路は、大気に連通する1つの大気開放穴に接続された請求項3または4に記載の積層型ヘッダ。 - 前記連結流路は、前記1つの大気開放穴から複数の前記開口部に分岐する分岐流路として形成された請求項5に記載の積層型ヘッダ。
- 前記連通穴は、
前記第1開口と連通する第1流路が形成された前記第2板状体と、
該第1流路を複数の流路に分岐する第1分岐流路が形成された前記第1板状体と、
該第1分岐流路で分岐した前記複数の流路に接続する複数の第2流路が形成された前記第2板状体と、
該第2流路を複数の流路に分岐する第2分岐流路が形成された前記第1板状体と、
該第2分岐流路で分岐した前記複数の流路に接続する複数の第3流路が形成された前記第2板状体と、
を積層することにより形成される請求項1~6のいずれか1項に記載の積層型ヘッダ。 - 前記開口部は、
少なくとも前記第1流路が形成された前記第2板状体において、前記第1分岐流路と連通しない部分に形成される請求項7に記載の積層型ヘッダ。 - 前記開口部は、
少なくとも前記第2流路が形成された前記第2板状体において、前記第2分岐流路と連通しない部分に形成される請求項7に記載の積層型ヘッダ。 - 前記開口部は、
少なくとも前記第3流路が形成された前記第2板状体において、前記第2分岐流路と連通しない部分に形成される請求項7に記載の積層型ヘッダ。 - ろう付けの工程前において、前記複数の第1板状体は、ろう材が塗布されていない板状体であり、前記複数の第2板状体は、予めろう材が塗布された板状体である請求項1~10のいずれか1項に記載の積層型ヘッダ。
- 請求項1~11のいずれか1項に記載の積層型ヘッダと、
前記複数の第2開口のそれぞれに接続された複数の伝熱管と、
を備えた熱交換器。 - 請求項12に記載の熱交換器を備えた空気調和装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680025068.2A CN107532867B (zh) | 2015-05-01 | 2016-04-27 | 层叠型集管、热交换器、及空气调节装置 |
US15/554,482 US10378833B2 (en) | 2015-05-01 | 2016-04-27 | Stacking-type header, heat exchanger, and air-conditioning apparatus |
EP16789534.1A EP3290851B1 (en) | 2015-05-01 | 2016-04-27 | Layered header, heat exchanger, and air conditioner |
JP2017516600A JP6388716B2 (ja) | 2015-05-01 | 2016-04-27 | 積層型ヘッダ、熱交換器、及び、空気調和装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPPCT/JP2015/063131 | 2015-05-01 | ||
PCT/JP2015/063131 WO2016178278A1 (ja) | 2015-05-01 | 2015-05-01 | 積層型ヘッダ、熱交換器、及び、空気調和装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016178398A1 true WO2016178398A1 (ja) | 2016-11-10 |
Family
ID=57217729
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/063131 WO2016178278A1 (ja) | 2015-05-01 | 2015-05-01 | 積層型ヘッダ、熱交換器、及び、空気調和装置 |
PCT/JP2016/063220 WO2016178398A1 (ja) | 2015-05-01 | 2016-04-27 | 積層型ヘッダ、熱交換器、及び、空気調和装置 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/063131 WO2016178278A1 (ja) | 2015-05-01 | 2015-05-01 | 積層型ヘッダ、熱交換器、及び、空気調和装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10378833B2 (ja) |
EP (1) | EP3290851B1 (ja) |
JP (1) | JP6388716B2 (ja) |
CN (1) | CN107532867B (ja) |
WO (2) | WO2016178278A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019184128A (ja) * | 2018-04-06 | 2019-10-24 | ダイキン工業株式会社 | 熱交換器及びそれを備えた熱交換ユニット |
JPWO2018179311A1 (ja) * | 2017-03-31 | 2019-11-07 | 三菱電機株式会社 | 熱交換器およびそれを備えた冷凍サイクル装置 |
WO2023190121A1 (ja) * | 2022-03-30 | 2023-10-05 | 株式会社富士通ゼネラル | 空気調和機の室内機 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6091641B2 (ja) * | 2013-10-29 | 2017-03-08 | 三菱電機株式会社 | 熱交換器、及び、空気調和装置 |
CN107949762B (zh) * | 2015-09-07 | 2019-08-27 | 三菱电机株式会社 | 分配器、层叠型集管、热交换器及空气调节装置 |
WO2019087235A1 (ja) * | 2017-10-30 | 2019-05-09 | 三菱電機株式会社 | 冷媒分配器および冷凍サイクル装置 |
US11536496B2 (en) * | 2018-10-29 | 2022-12-27 | Mitsubishi Electric Corporation | Heat exchanger and refrigeration cycle apparatus |
EP3992548A4 (en) * | 2019-06-28 | 2022-11-23 | Daikin Industries, Ltd. | HEAT EXCHANGER AND HEAT PUMP UNIT |
WO2021235472A1 (ja) * | 2020-05-22 | 2021-11-25 | 三菱電機株式会社 | 積層体、熱交換器及び空気調和機 |
CN116997759A (zh) * | 2021-03-15 | 2023-11-03 | 三菱电机株式会社 | 热交换器以及空调装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09113156A (ja) * | 1995-08-01 | 1997-05-02 | Behr Gmbh & Co | プレートサンドイッチ構造を有する熱交換器 |
JP2006010174A (ja) * | 2004-06-24 | 2006-01-12 | Mitsubishi Heavy Ind Ltd | 熱交換器の製造方法、熱交換器、硫酸分解器、及び、水素製造装置 |
WO2015004719A1 (ja) * | 2013-07-08 | 2015-01-15 | 三菱電機株式会社 | 積層型ヘッダー、熱交換器、空気調和装置、及び、積層型ヘッダーの板状体と管とを接合する方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5878096A (ja) * | 1981-11-04 | 1983-05-11 | Kobe Steel Ltd | プレ−トフイン型熱交換器の気液分散装置 |
US4903389A (en) * | 1988-05-31 | 1990-02-27 | General Motors Corporation | Heat exchanger with laminated header and method of manufacture |
US4917180A (en) * | 1989-03-27 | 1990-04-17 | General Motors Corporation | Heat exchanger with laminated header and tank and method of manufacture |
US5241839A (en) * | 1991-04-24 | 1993-09-07 | Modine Manufacturing Company | Evaporator for a refrigerant |
US5242016A (en) * | 1992-04-02 | 1993-09-07 | Nartron Corporation | Laminated plate header for a refrigeration system and method for making the same |
JPH09189463A (ja) | 1996-02-29 | 1997-07-22 | Mitsubishi Electric Corp | 熱交換器の分配装置及びその製造方法 |
JPH11118295A (ja) | 1997-10-17 | 1999-04-30 | Hitachi Ltd | プレート型分流器およびその製造方法 |
JP2000220914A (ja) | 1999-02-01 | 2000-08-08 | Hitachi Ltd | 冷媒分流器およびその製造方法 |
TW552382B (en) * | 2001-06-18 | 2003-09-11 | Showa Dendo Kk | Evaporator, manufacturing method of the same, header for evaporator and refrigeration system |
EP1459027B1 (de) * | 2001-12-21 | 2008-10-29 | Behr GmbH & Co. KG | Wärmeübertrager, insbesondere für ein kraftfahrzeug |
KR20070025312A (ko) * | 2005-09-01 | 2007-03-08 | 삼성전자주식회사 | 어레이 타입 프린트헤드 및 이를 구비한 잉크젯화상형성장치 |
JP2011214820A (ja) * | 2010-03-31 | 2011-10-27 | Akira Furusawa | 一本のアルミニウム管から成る水冷熱交換器が、アルミニウム押出中空材より成るヘッダー内部に挿入された、全アルミニウム構造の内燃機関用ラジエーター、 |
CN105209845B (zh) * | 2013-05-15 | 2017-05-03 | 三菱电机株式会社 | 层叠型联管箱、热交换器和空气调节装置 |
KR20150140836A (ko) * | 2013-05-15 | 2015-12-16 | 미쓰비시덴키 가부시키가이샤 | 적층형 헤더, 열교환기, 및, 공기 조화 장치 |
-
2015
- 2015-05-01 WO PCT/JP2015/063131 patent/WO2016178278A1/ja active Application Filing
-
2016
- 2016-04-27 WO PCT/JP2016/063220 patent/WO2016178398A1/ja active Application Filing
- 2016-04-27 JP JP2017516600A patent/JP6388716B2/ja active Active
- 2016-04-27 CN CN201680025068.2A patent/CN107532867B/zh active Active
- 2016-04-27 US US15/554,482 patent/US10378833B2/en active Active
- 2016-04-27 EP EP16789534.1A patent/EP3290851B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09113156A (ja) * | 1995-08-01 | 1997-05-02 | Behr Gmbh & Co | プレートサンドイッチ構造を有する熱交換器 |
JP2006010174A (ja) * | 2004-06-24 | 2006-01-12 | Mitsubishi Heavy Ind Ltd | 熱交換器の製造方法、熱交換器、硫酸分解器、及び、水素製造装置 |
WO2015004719A1 (ja) * | 2013-07-08 | 2015-01-15 | 三菱電機株式会社 | 積層型ヘッダー、熱交換器、空気調和装置、及び、積層型ヘッダーの板状体と管とを接合する方法 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2018179311A1 (ja) * | 2017-03-31 | 2019-11-07 | 三菱電機株式会社 | 熱交換器およびそれを備えた冷凍サイクル装置 |
JP2019184128A (ja) * | 2018-04-06 | 2019-10-24 | ダイキン工業株式会社 | 熱交換器及びそれを備えた熱交換ユニット |
JP7025270B2 (ja) | 2018-04-06 | 2022-02-24 | ダイキン工業株式会社 | 熱交換器及びそれを備えた熱交換ユニット |
WO2023190121A1 (ja) * | 2022-03-30 | 2023-10-05 | 株式会社富士通ゼネラル | 空気調和機の室内機 |
JP2023148248A (ja) * | 2022-03-30 | 2023-10-13 | 株式会社富士通ゼネラル | 空気調和機の室内機 |
JP7392757B2 (ja) | 2022-03-30 | 2023-12-06 | 株式会社富士通ゼネラル | 空気調和機の室内機 |
Also Published As
Publication number | Publication date |
---|---|
US10378833B2 (en) | 2019-08-13 |
JPWO2016178398A1 (ja) | 2017-11-30 |
EP3290851B1 (en) | 2019-10-02 |
EP3290851A4 (en) | 2019-01-09 |
US20180073820A1 (en) | 2018-03-15 |
EP3290851A1 (en) | 2018-03-07 |
WO2016178278A1 (ja) | 2016-11-10 |
JP6388716B2 (ja) | 2018-09-12 |
CN107532867A (zh) | 2018-01-02 |
CN107532867B (zh) | 2019-11-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6388716B2 (ja) | 積層型ヘッダ、熱交換器、及び、空気調和装置 | |
JP6091641B2 (ja) | 熱交換器、及び、空気調和装置 | |
JP6116683B2 (ja) | 積層型ヘッダー、熱交換器、及び、空気調和装置 | |
WO2015004719A1 (ja) | 積層型ヘッダー、熱交換器、空気調和装置、及び、積層型ヘッダーの板状体と管とを接合する方法 | |
JP6116702B2 (ja) | 積層型ヘッダー、熱交換器、熱交換器の製造方法、及び、空気調和装置 | |
WO2014184915A1 (ja) | 積層型ヘッダー、熱交換器、及び、空気調和装置 | |
JP6479195B2 (ja) | 分配器、積層型ヘッダ、熱交換器、及び、空気調和装置 | |
JP6336100B2 (ja) | 熱交換器、及び、空気調和装置 | |
WO2017203566A1 (ja) | 分配器、積層型ヘッダ、熱交換器、及び、空気調和装置 | |
JP6207624B2 (ja) | 熱交換器、及び、空気調和装置 | |
JP6138264B2 (ja) | 積層型ヘッダー、熱交換器、及び、空気調和装置 | |
JP6584514B2 (ja) | 積層型ヘッダ、熱交換器、及び、空気調和装置 | |
JP6080982B2 (ja) | 積層型ヘッダー、熱交換器、及び、空気調和装置 | |
WO2014184913A1 (ja) | 積層型ヘッダー、熱交換器、及び、空気調和装置 | |
JPWO2019073610A1 (ja) | 積層型ヘッダー、熱交換器、及び、冷凍サイクル装置 | |
WO2014184918A1 (ja) | 積層型ヘッダー、熱交換器、及び、空気調和装置 | |
JP6716016B2 (ja) | 熱交換器およびそれを備えた冷凍サイクル装置 | |
JP6120998B2 (ja) | 積層型ヘッダー、熱交換器、及び、空気調和装置 | |
JPWO2020090015A1 (ja) | 冷媒分配器、熱交換器および空気調和装置 | |
JP2022044306A (ja) | 積層型ヘッダ、熱交換器、及び冷凍装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16789534 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2017516600 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15554482 Country of ref document: US |
|
REEP | Request for entry into the european phase |
Ref document number: 2016789534 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |