WO2014181546A1 - 冷媒蒸発器 - Google Patents
冷媒蒸発器 Download PDFInfo
- Publication number
- WO2014181546A1 WO2014181546A1 PCT/JP2014/002452 JP2014002452W WO2014181546A1 WO 2014181546 A1 WO2014181546 A1 WO 2014181546A1 JP 2014002452 W JP2014002452 W JP 2014002452W WO 2014181546 A1 WO2014181546 A1 WO 2014181546A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- refrigerant
- heat exchange
- exchange core
- evaporator
- tank
- Prior art date
Links
Images
Classifications
-
- 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
- F28D1/0443—Combination of units extending one beside or one above the other
-
- 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
- F25B39/02—Evaporators
-
- 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
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
-
- 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
- F28D1/0408—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
- F28D1/0452—Combination of units extending one behind the other with units extending one beside or one above 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
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05333—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
-
- 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
- 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
- F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
-
- 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
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0085—Evaporators
-
- 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
- F28F9/0243—Header boxes having a circular cross-section
Definitions
- the present disclosure relates to a refrigerant evaporator.
- the refrigerant evaporator functions as a cooling heat exchanger that cools the fluid to be cooled by absorbing heat from the fluid to be cooled (for example, air) flowing outside and evaporating the refrigerant (liquid phase refrigerant) flowing inside. .
- the first and second evaporation parts including a heat exchange core part formed by laminating a plurality of tubes and a pair of tank parts connected to both ends of the plurality of tubes are covered.
- a configuration is known in which the tanks are arranged in series in the flow direction of the cooling fluid, and one tank unit in each evaporation unit is connected via a pair of communication units (see, for example, Patent Document 1).
- the refrigerant that has flowed through the heat exchange core portion of the first evaporation portion is secondly passed through one tank portion of each evaporation portion and a pair of communication portions that connect the tank portions.
- the refrigerant flow is changed in the width direction (left-right direction) of the heat exchange core part. That is, in the refrigerant evaporator, the refrigerant flowing on one side in the width direction of the heat exchange core portion of the first evaporation portion is caused to flow in the width direction of the heat exchange core portion of the second evaporation portion by one of the pair of communication portions.
- the refrigerant is caused to flow to the other side, and the refrigerant flowing on the other side in the width direction of the heat exchange core part of the first evaporation part is caused to flow to one side in the width direction of the heat exchange core part of the second evaporation part. Yes.
- the present disclosure aims to provide a refrigerant evaporator that can secure the flow rate of the refrigeration oil circulating in the refrigeration cycle and can suppress deterioration of refrigerant distribution immediately after the operation of the compressor.
- the refrigerant evaporator includes a first evaporator and a second evaporator arranged in series with respect to the flow direction of the fluid to be cooled.
- Each of the first evaporation section and the second evaporation section has a heat exchange core section configured by stacking a plurality of tubes through which a refrigerant flows.
- the heat exchange core part in a 1st evaporation part has the 2nd core part comprised by the 1st core part comprised by some tube groups among several tubes, and the remaining tube group.
- the heat exchange core part in the second evaporation part includes a third core part composed of a tube group that faces at least a part of the first core part in the flow direction of the fluid to be cooled, and the fluid to be cooled.
- the fourth core portion is composed of a tube group facing at least a part of the second core portion in the flow direction.
- the refrigerant evaporator further connects a first refrigerant channel that guides the refrigerant from the first core unit to the fourth core unit and a second refrigerant channel that guides the refrigerant from the second core unit to the third core unit.
- the connecting flow path is provided.
- connection which connects the 1st refrigerant flow path which guides the refrigerant from the 1st core part to the 4th core part, and the 2nd refrigerant flow path which leads the refrigerant from the 2nd core part to the 3rd core part.
- the liquid-phase refrigerant can move between the first refrigerant flow path (fourth core part side) and the second refrigerant flow path (third core part side) via the connection flow path. It becomes.
- the liquid-phase refrigerant moves through the connection channel from the refrigerant channel having the larger refrigerant flow rate of the first refrigerant channel and the second refrigerant channel to the other refrigerant channel having the smaller refrigerant flow rate.
- coolant flow volume increases, the refrigeration oil stagnated in the refrigerant
- connection flow path that connects the first refrigerant flow path that guides the refrigerant from the first core section to the fourth core section and the second refrigerant flow path that guides the refrigerant from the second core section to the third core section.
- FIG. It is a typical perspective view of a refrigerant evaporator concerning an embodiment of this indication. It is a disassembled perspective view of the refrigerant evaporator shown in FIG. It is a typical perspective view of the intermediate tank part in an embodiment. It is a disassembled perspective view of the intermediate tank part shown in FIG. It is explanatory drawing for demonstrating the flow of the refrigerant
- the refrigerant evaporator 1 is applied to a vapor compression refrigeration cycle of a vehicle air conditioner that adjusts the temperature in the passenger compartment, and absorbs heat from the blown air that is blown into the passenger compartment to form a refrigerant (liquid phase refrigerant). It is a heat exchanger for cooling which cools blowing air by evaporating.
- the blown air corresponds to a fluid to be cooled flowing outside.
- the refrigeration cycle includes a compressor, a radiator (condenser), an expansion valve, and the like (not shown) in addition to the refrigerant evaporator 1, and in this embodiment, liquid is received between the radiator and the expansion valve. It is configured as a receiver cycle in which a device is arranged.
- the refrigerant of the refrigeration cycle is mixed with refrigeration oil for lubricating the compressor, and a part of the refrigeration oil circulates in the cycle together with the refrigerant.
- the refrigerant evaporator 1 includes two evaporators 10 and 20 arranged in series with respect to the flow direction (flow direction of the fluid to be cooled) X of the blown air. It is prepared for.
- positioned among the two evaporation parts 10 and 20 on the windward side (upstream side) of the air flow direction of blowing air is called the windward evaporation part 10, and the flow of blowing air
- the evaporator disposed on the leeward side (downstream side) in the direction is referred to as a leeward evaporator 20.
- the windward side evaporation part 10 in this embodiment comprises a 2nd evaporation part
- the leeward side evaporation part 20 comprises the 1st evaporation part.
- the basic configurations of the windward side evaporator 10 and the leeward side evaporator 20 are the same, and the heat exchange core parts 11 and 21 and a pair of tank parts 12 disposed on the upper and lower sides of the heat exchange core parts 11 and 21, respectively. 13, 22, and 23.
- the heat exchange core part in the windward side evaporation part 10 is called the windward heat exchange core part 11
- the heat exchange core part in the leeward side evaporation part 20 is called the leeward side heat exchange core part 21.
- the tank portion disposed on the upper side is referred to as a first windward tank portion 12
- the tank portion disposed on the lower side is referred to as the second windward side. This is referred to as a tank portion 13.
- the tank part arranged on the upper side is referred to as the first leeward side tank part 22, and the tank part arranged on the lower side is referred to as the second leeward side. This is referred to as a side tank portion 23.
- Each of the windward side heat exchange core part 11 and the leeward side heat exchange core part 21 of the present embodiment includes a plurality of tubes 111 and 211 extending in the vertical direction and fins 112 and 212 joined between the adjacent tubes 111 and 211. And a laminate in which layers are alternately arranged.
- the stacking direction in the stacked body of the plurality of tubes 111 and 211 and the plurality of fins 112 and 212 is referred to as a tube stacking direction.
- the windward side heat exchange core part 11 is the 2nd wind comprised by the 1st windward heat exchange core part 11a comprised by some tube groups among the some tubes 111, and the remaining tube group. It has the upper side heat exchange core part 11b.
- the 1st windward heat exchange core part 11a in this embodiment comprises a 3rd core part
- the 2nd windward heat exchange core part 11b comprises a 4th core part.
- the first windward heat exchange core part 11a is configured by a tube group existing on the right side of the tube lamination direction, and the tube lamination direction
- the second upwind heat exchange core portion 11b is configured by a tube group existing on the left side of the above.
- the leeward side heat exchange core part 21 is the 2nd leeward side comprised by the 1st leeward side heat exchange core part 21a comprised by some tube groups among the some tubes 211, and the remaining tube group. It has a heat exchange core portion 21b.
- the 1st leeward side heat exchange core part 21a in this embodiment comprises a 1st core part
- the 2nd leeward side heat exchange core part 21b comprises a 2nd core part.
- the first leeward heat exchange core portion 21a when the leeward heat exchange core portion 21 is viewed from the flow direction of the blown air, the first leeward heat exchange core portion 21a is configured by a tube group existing on the right side of the tube lamination direction, and the tube lamination direction
- the second leeward heat exchange core portion 21b is configured by a tube group existing on the left side of the leeward side.
- the first windward side heat exchange core portion 11a and the first leeward side heat exchange core portion 21a are arranged so as to overlap (opposite) when viewed from the flow direction of the blown air.
- the second leeward side heat exchange core part 11b and the second leeward side heat exchange core part 21b are arranged so as to overlap (oppose) each other.
- Each of the tubes 111 and 211 is formed of a flat tube in which a refrigerant passage through which a refrigerant flows is formed and a cross-sectional shape thereof is a flat shape extending along the flow direction of the blown air.
- the tube 111 of the windward side heat exchange core part 11 has one end side (upper end side) in the longitudinal direction connected to the first windward tank part 12, and the other end side (lower end side) in the longitudinal direction is the second windward side. It is connected to the tank unit 13.
- the tube 211 of the leeward heat exchange core portion 21 has one end side (upper end side) in the longitudinal direction connected to the first leeward tank portion 22 and the other end side (lower end side) in the longitudinal direction is second.
- the leeward tank unit 23 is connected.
- Each of the fins 112 and 212 is a corrugated fin formed by bending a thin plate material into a wave, joined to the flat outer surface side of the tubes 111 and 211, and heat for expanding the heat transfer area between the blown air and the refrigerant. It constitutes an exchange promoting means.
- side plates 113 and 213 that reinforce the heat exchange core parts 11 and 12 are arranged at both ends in the tube lamination direction.
- the side plates 113 and 213 are joined to the fins 112 and 212 arranged on the outermost side in the tube stacking direction.
- the first upwind tank unit 12 is closed at one end (the left end when viewed from the flow direction of the blown air) and at the other end (the right end when viewed from the flow direction of the blown air). Further, it is constituted by a cylindrical member in which a refrigerant outlet 12a for leading out the refrigerant from the inside of the tank to the suction side of a compressor (not shown) is formed.
- the first upwind tank unit 12 has a through hole (not shown) in which one end side (upper end side) of each tube 111 is inserted and joined at the bottom.
- the first upwind tank unit 12 is configured such that the internal space thereof communicates with each tube 111 of the upwind heat exchange core unit 11, and the core units 11 a and 11 b of the upwind heat exchange core unit 11. It functions as a refrigerant collecting part that collects the refrigerant from.
- the first leeward tank portion 22 is closed at one end side, and has a cylinder formed with a refrigerant inlet 22a for introducing a low-pressure refrigerant decompressed by an expansion valve (not shown) inside the tank at the other end side. It is comprised by the shape-shaped member.
- the first leeward tank portion 22 has a through hole (not shown) in which one end side (upper end side) of each tube 211 is inserted and joined at the bottom. That is, the 1st leeward side tank part 22 is comprised so that the internal space may connect with each tube 211 of the leeward side heat exchange core part 21, and each core part 21a, 21b of the leeward side heat exchange core part 21 is comprised. It functions as a refrigerant distribution unit that distributes the refrigerant.
- the second upwind tank unit 13 is composed of a cylindrical member whose both ends are closed.
- the second upwind tank portion 13 has a through hole (not shown) in which the other end side (lower end side) of each tube 111 is inserted and joined to the ceiling portion. That is, the second upwind tank unit 13 is configured such that its internal space communicates with each tube 111.
- a partition member 131 is disposed at the center in the longitudinal direction inside the second upwind tank unit 13, and the tank internal space forms the first upwind heat exchange core unit 11a by the partition member 131.
- the partition member 131 Are divided into a space where the tubes 111 communicate with each other and a space where the tubes 111 constituting the second upwind heat exchange core portion 11b communicate with each other.
- the space communicating with each tube 111 constituting the first upwind heat exchange core unit 11a distributes the refrigerant to the first upwind heat exchange core unit 11a.
- a second refrigerant distributor that constitutes the first refrigerant distributor 13a and that communicates with the tubes 111 constituting the second windward heat exchange core 11b distributes the refrigerant to the second windward heat exchange core 11b. 13b is constituted.
- the second leeward tank portion 23 is formed of a cylindrical member whose both ends are closed.
- the second leeward tank portion 23 has a through hole (not shown) in which the other end side (lower end side) of each tube 211 is inserted and joined to the ceiling portion. That is, the second leeward tank unit 23 is configured such that the internal space thereof communicates with each tube 211.
- a partition member 231 is arranged at a central position in the longitudinal direction.
- the tank internal space constitutes the first leeward heat exchange core part 21a. It is partitioned into a space in which the tubes 211 communicate with each other and a space in which the tubes 211 constituting the second leeward heat exchange core portion 21b communicate with each other.
- the space communicating with each tube 211 constituting the first leeward side heat exchange core part 21a collects the refrigerant from the first leeward side heat exchange core part 21a.
- the second refrigerant that constitutes the first refrigerant collecting portion 23a to be communicated and in which the space where the tubes 211 constituting the second leeward heat exchange core portion 21b communicate with each other collects refrigerant from the second leeward heat exchange core portion 21b.
- the aggregation unit 23b is configured.
- the second leeward tank unit 13 and the second leeward tank unit 23 are connected via a refrigerant replacement unit 30.
- the refrigerant replacement unit 30 guides the refrigerant in the first refrigerant collecting unit 23 a in the second leeward tank unit 23 to the second refrigerant distribution unit 13 b in the second leeward tank unit 13 and also the second leeward tank unit 23.
- the refrigerant in the second refrigerant collecting portion 23b is guided to the first refrigerant distributing portion 13a in the second upwind tank portion 13. That is, the refrigerant replacement unit 30 is configured to replace the refrigerant flow in the core width direction in each of the heat exchange core units 11 and 21.
- the refrigerant replacement part 30 includes a pair of collecting part connecting members 31a and 31b connected to the first and second refrigerant collecting parts 23a and 23b in the second leeward tank part 23, and a second windward tank.
- a pair of distributor connecting members 32a and 32b connected to the respective refrigerant distributors 13a and 13b in the portion 13, and a pair of intermediate connecting portions connected to the pair of collecting portion connecting members 31a and 31b and the pair of distributing portion connecting members 32a and 32b, respectively.
- a tank portion 33 is a tank portion 33.
- Each of the pair of collecting portion connecting members 31a and 31b is configured by a cylindrical member in which a refrigerant flow passage through which a refrigerant flows is formed, and one end side thereof is connected to the second leeward tank portion 23. The other end side is connected to the intermediate tank portion 33.
- the first collecting portion connecting member 31a constituting one of the pair of collecting portion connecting members 31a and 31b is connected to the second leeward tank portion 23 so that one end side thereof communicates with the first refrigerant collecting portion 23a.
- the other end side is connected to the intermediate tank portion 33 so as to communicate with a first refrigerant flow passage 33a in the intermediate tank portion 33 described later.
- the second collecting portion connecting member 31b constituting the other is connected to the second leeward tank portion 23 so that one end side thereof communicates with the second refrigerant collecting portion 23b, and the other end side is an intermediate tank portion 33 described later. It is connected to the intermediate tank portion 33 so as to communicate with the second refrigerant flow passage 33b.
- one end side of the first collecting portion connecting member 31a is connected to a position near the partition member 231 in the first refrigerant collecting portion 23a, and one end side of the second collecting portion connecting member 31b is the second refrigerant set.
- the part 23b is connected to a position close to the closed end of the second leeward tank part 23.
- Each of the pair of distribution unit connecting members 32a and 32b is formed of a cylindrical member in which a refrigerant flow passage through which a refrigerant flows is formed, and one end side thereof is connected to the second upwind tank unit 13. The other end side is connected to the intermediate tank portion 33.
- the first distributor connecting member 32a constituting one is connected to the second windward tank 13 so that one end side thereof communicates with the first refrigerant distributor 13a.
- the other end side is connected to the intermediate tank portion 33 so as to communicate with a second refrigerant flow passage 33b in the intermediate tank portion 33 described later. That is, the 1st distribution part connection member 32a is connected with the above-mentioned 2nd gathering part connection member 31b via the 2nd refrigerant flow passage 33b of intermediate tank part 33.
- the second distribution portion connecting member 32b constituting the other is connected to the second windward tank portion 13 so that one end side communicates with the second refrigerant distribution portion 13b, and the other end side is an intermediate tank portion 33 described later. It is connected to the intermediate tank portion 33 so as to communicate with the first refrigerant flow passage 33a.
- the second distribution part connecting member 32 b communicates with the first collecting part connecting member 31 a described above via the first refrigerant flow passage 33 a of the intermediate tank part 33.
- one end side of the first distribution unit connecting member 32a is connected to a position near the closed end of the second upwind tank unit 13 in the first refrigerant distribution unit 13a, and the second distribution unit connecting member 32b One end side is connected to a position near the partition member 131 in the second refrigerant distribution portion 13b.
- Each of the pair of collecting portion connecting members 31 a and 31 b configured as described above constitutes a refrigerant inlet in the refrigerant replacement portion 30, and each of the pair of distribution portion connecting members 32 a and 32 b is the refrigerant in the refrigerant replacement portion 30. It constitutes an outlet.
- the intermediate tank portion 33 is composed of a cylindrical member whose both ends are closed.
- the intermediate tank portion 33 is disposed between the second leeward tank portion 13 and the second leeward tank portion 23.
- the intermediate tank portion 33 of the present embodiment has a part (upper side portion) of the second windward side tank portion 13 and the second leeward side. It arrange
- a partition member 331 is disposed inside the intermediate tank portion 33 at a position located on the upper side, and the partition member 331 allows the space inside the tank to flow through the first refrigerant. It is partitioned into a passage 33a and a second refrigerant flow passage 33b.
- the first refrigerant flow passage 33a constitutes a refrigerant flow passage that guides the refrigerant from the first collecting portion connecting member 31a to the second distribution portion connecting member 32b.
- the second refrigerant flow passage 33b constitutes a refrigerant flow passage that guides the refrigerant from the second collecting portion connecting member 31b to the first distribution portion connecting member 32a.
- the first collecting portion connecting member 31a, the second distributing portion connecting member 32b, and the first refrigerant flow passage 33a in the intermediate tank portion 33 constitute a first communicating portion.
- coolant flow path 33b in the 2nd gathering part connection member 31b, the 1st distribution part connection member 32a, and the intermediate tank part 33 comprises the 2nd communication part.
- the partition member 131 of the second upwind tank unit 13 is formed with a through hole 132 penetrating the front and back.
- the through-hole 132 Through the through-hole 132, the first refrigerant distributor 13a and the second refrigerant distributor 13b communicate with each other. For this reason, in this embodiment, the through-hole 132 comprises the communicating part.
- the low-pressure refrigerant depressurized by an expansion valve (not shown) is introduced into the tank through a refrigerant inlet 22a formed on one end side of the first leeward tank portion 22 as indicated by an arrow A.
- the refrigerant introduced into the first leeward tank unit 22 descends the first leeward heat exchange core portion 21a of the leeward heat exchange core portion 21 as indicated by an arrow B, and at the same time leeward heat exchange as indicated by an arrow C.
- the second leeward heat exchange core portion 21b of the core portion 21 is lowered.
- the refrigerant descending the first leeward heat exchange core portion 21a flows into the first refrigerant collecting portion 23a of the second leeward tank portion 23 as indicated by an arrow D.
- the refrigerant descending the second leeward heat exchange core portion 21b flows into the second refrigerant collecting portion 23b of the second leeward tank portion 23 as indicated by an arrow E.
- the refrigerant that has flowed into the first refrigerant collecting portion 23a flows into the first refrigerant flow passage 33a of the intermediate tank portion 33 through the first collecting portion connecting member 31a as indicated by the arrow F. Further, the refrigerant flowing into the second refrigerant collecting portion 23b flows into the second refrigerant flow passage 33b of the intermediate tank portion 33 through the second collecting portion connecting member 31b as indicated by an arrow G.
- the refrigerant that has flowed into the first refrigerant flow passage 33a flows into the second refrigerant distribution portion 13b of the second upwind tank portion 13 through the second distribution portion connecting member 32b as indicated by an arrow H. Further, the refrigerant flowing into the second refrigerant flow passage 33b flows into the first refrigerant distribution portion 13a of the second upwind tank portion 13 through the first distribution portion connecting member 32a as indicated by an arrow I.
- the refrigerant that has flowed into the first refrigerant distribution unit 13a rises in the first upwind heat exchange core unit 11a of the upwind heat exchange core unit 11 as indicated by an arrow K.
- the refrigerant that has risen up the second upwind heat exchange core portion 11b and the refrigerant that has risen up the first upwind heat exchange core portion 11a flow into the tank of the first upwind tank portion 12 as indicated by arrows L and M, respectively. As indicated by the arrow N, the refrigerant is led out from the refrigerant outlet 12a formed on one end side of the first upwind tank 12 to the compressor (not shown) suction side.
- the refrigerant from the first leeward side heat exchange core portion 21a of the leeward side heat exchange core portion 21 is the first refrigerant collecting portion 23a, the first collecting portion connecting member 31a of the second leeward side tank portion 23, The second windward side of the windward heat exchange core unit 11 via the first refrigerant flow passage 33a of the intermediate tank part 33, the second distribution part connecting member 32b, and the second refrigerant distribution part 13b of the second windward side tank part 13. It flows into the heat exchange core part 11b.
- the first refrigerant collecting portion 23a, the first collecting portion connecting member 31a, the first refrigerant flow passage 33a, the second distributing portion connecting member 32b, and the second refrigerant distributing portion 13b are included in the first refrigerant flow path. Is configured.
- the refrigerant from the second leeward side heat exchange core part 21b of the leeward side heat exchange core part 21 is the second refrigerant gathering part 23b, the second gathering part connecting member 31b, the intermediate tank part of the second leeward side tank part 23.
- the second refrigerant collecting portion 23b, the second collecting portion connecting member 31b, the second refrigerant flow passage 33b, the first distributing portion connecting member 32a, and the first refrigerant distributing portion 13a are used as the second refrigerant flow path. Is configured.
- the “flow path” is connected to the “second refrigerant flow path” that guides the refrigerant from the second leeward heat exchange core portion 21b to the first leeward heat exchange core portion 11a. Therefore, in this embodiment, the through hole 132 constitutes a connection channel.
- the partition member 131 of the second upwind tank unit 13 is formed with a through hole 132 that allows the second refrigerant distribution unit 13b and the first refrigerant distribution unit 13a to communicate with each other. ing. Therefore, the liquid-phase refrigerant can move between the second refrigerant distribution unit 13b and the first refrigerant distribution unit 13a via the through hole 132.
- the liquid-phase refrigerant passes through the through-hole 132 from the second refrigerant distribution portion 13b having a high refrigerant flow rate in the second refrigerant distribution portion 13b and the first refrigerant distribution portion 13a to the first refrigerant distribution portion 13a having a low refrigerant flow rate.
- coolant distribution part 13a increases, the refrigeration oil stagnated in the 1st refrigerant
- FIG. 6 shows the heat exchange core parts 11 and 21 of the refrigerant evaporator 1 according to the comparative example (the refrigerant evaporator in which the through hole 132 is not formed in the partition member 131 of the second upwind tank unit 13).
- FIG. 7 is an explanatory diagram for explaining the distribution of the flowing liquid-phase refrigerant, and FIG. 7 is a diagram for explaining the distribution of the liquid-phase refrigerant flowing through the heat exchange core portions 11 and 21 of the refrigerant evaporator 1 according to the present embodiment. It is explanatory drawing.
- FIGS. 6 (b) and 7 (b) show the leeward heat exchange core unit 21.
- 6 (c) and FIG. 7 (c) show the synthesis of the distribution of the liquid phase refrigerant flowing through the heat exchange core portions 11 and 21.
- FIG. 6 and 7 show the distribution of the liquid-phase refrigerant when the refrigerant evaporator 1 is viewed from the direction of the arrow Y in FIG. 1 (the direction opposite to the flow direction X of the blown air).
- a portion indicated by a portion indicates a portion where the liquid-phase refrigerant exists.
- the refrigerant evaporator 1 according to the comparative example and the refrigerant according to the present embodiment. The same is true for the evaporator 1, and a portion where the liquid-phase refrigerant hardly flows (a white portion on the lower right side in the figure) is generated in a part of the second leeward heat exchange core portion 21 b.
- each of the second leeward heat exchange core portion 21b and the first leeward heat exchange core portion 11a in which the liquid-phase refrigerant is difficult to flow Refrigerating machine oil stays in the 2nd refrigerant gathering part 23b and the 1st refrigerant distribution part 13a which are connected (refer the point hatching in a figure).
- a refrigerant passage for flowing the refrigerant flowing on one side in the width direction of the heat exchange core part of the first evaporation part to the other side in the width direction of the heat exchange core part of the second evaporation part is defined as a refrigerant path A
- the heat of the first evaporation part A refrigerant passage that allows the refrigerant flowing on the other side in the width direction of the exchange core portion to flow to one side in the width direction of the heat exchange core portion of the second evaporator is defined as a refrigerant passage B.
- a vehicle air conditioner equipped with a refrigeration cycle equipped with a fixed capacity compressor there are various engine speeds, various temperatures such as temperature, humidity, and flow rate of air to be cooled (air blown into the vehicle interior) that passes through the refrigerant evaporator.
- the cooling capacity varies depending on factors.
- the cooling capability of an occupant's cooling request is achieved by detection signals such as an internal air temperature sensor that detects the temperature inside the vehicle and a blown air temperature sensor that detects the temperature of the air blown into the vehicle.
- detection signals such as an internal air temperature sensor that detects the temperature inside the vehicle and a blown air temperature sensor that detects the temperature of the air blown into the vehicle.
- frost frost
- the compressor is operated again (ONN), and control for realizing a predetermined cooling state is performed.
- the heat load varies in the width direction of the heat exchange core portion by changing the flow direction of the refrigerant in a pair of communication portions that connect one tank portion of each evaporation portion.
- a good temperature distribution can be realized on the entire surface of the heat exchange core.
- the balance of the refrigerant flow rates flowing through the refrigerant flow paths A and B described above is adjusted according to the heat load (heat exchange amount, refrigerant pressure loss, etc.).
- the liquid phase refrigerant is unevenly distributed in the heat exchange core portion of the second evaporation portion due to the difference in residual refrigerant amount in the tank portion, and the refrigerant evaporator is A temperature distribution is generated in the passing air.
- the refrigerant flow path does not branch in the heat exchanger, the entire refrigerant flow flows without branching even at low flow rates. Therefore, the problem that the refrigerant flow is biased and the temperature distribution is generated in the blown air as a result is a problem peculiar to the structure of the present disclosure in which the refrigerant flow path branches.
- the second upwind tank is passed through the through hole 132 formed in the partition member 131 of the second upwind tank portion 13.
- the liquid-phase refrigerant in the section 13 flows from the second refrigerant distribution section 13b to the first refrigerant distribution section 13a.
- a liquid phase refrigerant coolant flows easily to the 1st windward heat exchange core part 11a of the windward heat exchange core part 11.
- the flow rate of the refrigerant flowing through the first refrigerant distribution unit 13a is increased by the liquid phase refrigerant flowing in from the second refrigerant distribution unit 13b, so that the refrigerating machine oil retained in the first refrigerant distribution unit 13a is washed away by the liquid phase refrigerant. It is.
- FIG. 8 shows that the operation of the compressor is switched from OFF to ON in the refrigerant evaporator 1 according to the comparative example (the refrigerant evaporator in which the through hole 132 is not formed in the partition member 131 of the second upwind tank unit 13).
- FIG. 9 is an explanatory diagram for explaining the distribution of the liquid-phase refrigerant flowing through the heat exchange core portions 11 and 21 at the time, and FIG. 9 shows that the operation of the compressor is turned from OFF to ON in the refrigerant evaporator 1 according to the present embodiment. It is explanatory drawing for demonstrating distribution of the liquid phase refrigerant
- the liquid refrigerant is less likely to flow through the first windward heat exchange core part 11a than through the second windward heat exchange core part 11b. .
- Fig.8 (a) in the refrigerant evaporator 1 which concerns on a comparative example, when the operation
- FIG. While a large amount of liquid-phase refrigerant remains (see point hatching in the figure), the amount of liquid-phase refrigerant remaining in the first refrigerant distributor 13a decreases.
- the refrigerant evaporator 1 which concerns on a comparative example is seen from the flow direction X of blowing air, as shown in FIG.8 (c), the 1st leeward side heat exchange core part 11a and the 1st leeward side heat exchange core A portion where the liquid refrigerant is difficult to flow (a white portion on the left side in the figure) is generated in a part of the portion to be polymerized in the portion 21a.
- the refrigerant can sufficiently cool the blown air only by absorbing the sensible heat from the blown air at the location where the liquid-phase refrigerant is difficult to flow. Can not. As a result, a temperature distribution is generated in the blown air passing through the refrigerant evaporator 1.
- the through-hole 132 formed in the partition member 131 of the second upwind tank unit 13 is used.
- the liquid-phase refrigerant in the second upwind tank unit 13 flows from the second refrigerant distribution unit 13b into the first refrigerant distribution unit 13a.
- coolant distribution part 13a are equalize
- the refrigerant evaporator 1 In the refrigerant evaporator 1 according to this embodiment in which the liquid-phase refrigerant is thus distributed, the refrigerant absorbs sensible heat and latent heat from the blown air by any one of the heat exchange core parts 11 and 21, so Sufficient cooling is possible. As a result, the temperature distribution in the blown air passing through the refrigerant evaporator 1 is suppressed.
- the distribution of the liquid phase refrigerant in the windward heat exchange core portion 11 of the windward evaporator 10 has a great influence on the temperature distribution of the blown air passing through the refrigerant evaporator 1.
- the refrigerant evaporator 1 of the present embodiment uses the refrigerant that has flowed through the heat exchange core portions 21a and 21b of the leeward evaporation unit 20 through the refrigerant replacement unit 30 to the heat exchange core portion 11a of the upwind evaporation unit 10.
- 11b it is set as the structure which replaces
- the liquid-phase refrigerant is prevented from being distributed unevenly in the heat exchange core portions 11a, 11b, 21a0, and 21b, and the temperature distribution is suppressed from being generated in the blown air that passes through the refrigerant evaporator 1. it can.
- the above-described temperature distribution suppression effect of the blown air depends on the configuration of the through hole 132. May be reduced. For this reason, by appropriately setting the type and flow rate (flow velocity) of the refrigerant to be used, the cross-sectional area and the position of the through hole 132, the effect of suppressing the temperature distribution of the blown air, the effect of ensuring the flow rate of the refrigerating machine oil, and the compressor It is possible to obtain the effect of suppressing the deterioration of refrigerant distribution immediately after the operation.
- the refrigerant in the refrigerant evaporator 1 is in a gas-liquid two-phase state, and the flow mode changes according to the flow rate.
- R134a which is an HFC-based refrigerant
- the low flow velocity region it becomes a laminar flow and enters a gas-liquid separation state.
- the pressure loss at the time of passing through the through hole 132 having the same cross-sectional area changes depending on the flow mode of the refrigerant, and the passing flow rate also changes.
- the spray flow has a high pressure loss
- the laminar flow has a low pressure loss.
- the liquid phase refrigerant has a lower pressure loss among the gas-phase separated liquid-phase refrigerant and the liquid-phase refrigerant, and thus tends to easily pass through the through hole 132.
- the refrigerant when used in a sprayed state, even if the cross-sectional area of the through hole 132 is increased, the pressure loss when passing through the through hole 132 is large. And the temperature distribution suppression effect of the blown air can be maintained.
- the flow rate of the refrigerant passing through the through-hole 132 changes significantly.
- the specification of the through hole 132 is set in consideration of the balance with the effect of suppressing the deterioration of the distribution of the refrigerant.
- the refrigerating machine oil and the liquid phase refrigerant are liable to stay on the lower side in the direction of gravity in the second upwind tank unit 13. For this reason, the installation position of the through-hole 132 is set according to the liquid level of refrigerating machine oil and a liquid phase refrigerant. In this case, the liquid level height of the refrigerating machine oil and the liquid phase refrigerant may be adjusted by the cross-sectional area of the second upwind tank unit 13 or the like.
- the first refrigerant flow path that guides the refrigerant from the first leeward heat exchange core portion 21a to the second leeward heat exchange core portion 11b and the refrigerant from the second leeward heat exchange core portion 21b.
- An example in which the through-hole 132 formed in the partition member 131 of the second upwind tank unit 13 is employed as a connection channel that connects the second refrigerant channel leading to the first upwind heat exchange core unit 11a has been described.
- the connection flow path is not limited to this.
- a connection portion 35 that connects the first distribution portion connecting member 32a and the second distribution portion connecting member 32b may be provided as a connection flow path.
- a communication hole that allows the first refrigerant flow passage 33a and the second refrigerant flow passage 33b to communicate with each other may be provided.
- a communication hole that allows the first refrigerant assembly portion 23a and the second refrigerant assembly portion 23b to communicate with each other may be provided.
- the refrigerant replacement unit 30 is configured by the pair of collecting unit coupling members 31a and 31b, the pair of distribution unit coupling members 32a and 32b, and the intermediate tank unit 33 is described.
- the intermediate tank unit 33 of the refrigerant replacement unit 30 may be eliminated and the connecting members 31a, 31b, 32a, and 32b may be directly connected to each other.
- the refrigerant evaporator 1 is arranged so that the first windward heat exchange core portion 11a and the first leeward heat exchange core portion 21a are superposed when viewed from the flow direction of the blown air.
- the example has been described in which the second leeward heat exchange core portion 11b and the second leeward heat exchange core portion 21b are superposed, but the present invention is not limited thereto.
- the refrigerant evaporator 1 is arranged so that at least a part of the first windward heat exchange core portion 11a and the first leeward heat exchange core portion 21a are polymerized when viewed from the flow direction of the blown air, You may arrange
- the windward side evaporator 10 in the refrigerant evaporator 1 on the upstream side in the flow direction X of the blown air with respect to the leeward side evaporator 20, but not limited to this, the windward side evaporator
- the part 10 may be arranged on the downstream side in the flow direction X of the blown air with respect to the leeward side evaporation part 20.
- each heat exchange core portion 11, 21 is configured by the plurality of tubes 111, 211 and the fins 112, 212 .
- the exchange core parts 11 and 21 may be configured.
- the fins 112 and 212 may employ
- the present invention is not limited thereto, and may be applied to, for example, a refrigeration cycle used in a water heater or the like.
Abstract
Description
本開示は上述の実施形態に限定されることなく、本開示の趣旨を逸脱しない範囲内で、以下のように種々変形可能である。
Claims (3)
- 外部を流れる被冷却流体と冷媒との間で熱交換を行う冷媒蒸発器であって、
前記被冷却流体の流れ方向に対して直列に配置された第1蒸発部(20)および第2蒸発部(10)を備え、
前記第1蒸発部(20)および前記第2蒸発部(10)それぞれは、冷媒が流れる複数のチューブ(111、211)を積層して構成された熱交換コア部(11、21)を有し、
前記第1蒸発部(20)における前記熱交換コア部(21)は、前記複数のチューブ(211)のうち、一部のチューブ群で構成される第1コア部(21a)、および残部のチューブ群で構成される第2コア部(21b)を有し、
前記第2蒸発部(10)における前記熱交換コア部(11)は、前記複数のチューブ(111)のうち、前記被冷却流体の流れ方向において前記第1コア部(21a)の少なくとも一部と対向するチューブ群で構成される第3コア部(11a)、および前記被冷却流体の流れ方向において前記第2コア部(21b)の少なくとも一部と対向するチューブ群で構成される第4コア部(11b)を有し、
さらに、前記第1コア部(21a)からの冷媒を前記第4コア部(11b)へ導く第1冷媒流路(23a、31a、33a、32b、13b)と、前記第2コア部(21b)からの冷媒を前記第3コア部(11a)へ導く第2冷媒流路(23b、31b、33b、32a、13a)とを接続する接続流路(132、35)を備える冷媒蒸発器。 - 前記第1蒸発部(20)および前記第2蒸発部(10)それぞれは、前記複数のチューブ(111、211)の両端部に接続され、前記複数のチューブ(111、211)を流れる冷媒の集合あるいは分配を行う一対のタンク部(12、13、22、23)を有し、
前記第1蒸発部(20)における前記一対のタンク部(22、23)のうち、一方のタンク部(23)は、前記第1コア部(21a)からの冷媒を集合させる第1冷媒集合部(23a)、前記第2コア部(21b)からの冷媒を集合させる第2冷媒集合部(23b)を含んで構成され、
前記第2蒸発部(10)における前記一対のタンク部(12、13)のうち、一方のタンク部(13)は、前記第3コア部(11a)に冷媒を分配させる第1冷媒分配部(13a)、前記第4コア部(11b)に冷媒を分配させる第2冷媒分配部(13b)を含んで構成され、
前記第1蒸発部(20)および前記第2蒸発部(10)は、前記第1冷媒集合部(23a)の冷媒を前記第2冷媒分配部(13b)に導く第1連通部(31a、32b、33a)、および、前記第2冷媒集合部(23b)の冷媒を前記第1冷媒分配部(13a)に導く第2連通部(31b、32a、33b)を介して連結されており、
前記接続流路は、前記第1冷媒集合部(23a)、前記第2冷媒分配部(13b)および前記第1連通部(31a、32b、33a)のうちいずれか1つと、前記第2冷媒集合部(23b)、前記第1冷媒分配部(13a)および前記第2連通部(31b、32a、33b)のうちいずれか1つとを連通させる連通部(132、35)である請求項1に記載の冷媒蒸発器。 - 前記連通部(132)は、前記第2冷媒分配部(13b)と前記第1冷媒分配部(13a)とを連通させる請求項2に記載の冷媒蒸発器。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480026235.6A CN105378422B (zh) | 2013-05-10 | 2014-05-09 | 制冷剂蒸发器 |
US14/889,504 US9951996B2 (en) | 2013-05-10 | 2014-05-09 | Refrigerant evaporator |
DE112014002352.3T DE112014002352T5 (de) | 2013-05-10 | 2014-05-09 | Kältemittelverdampfer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013100486A JP6098343B2 (ja) | 2013-05-10 | 2013-05-10 | 冷媒蒸発器 |
JP2013-100486 | 2013-05-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014181546A1 true WO2014181546A1 (ja) | 2014-11-13 |
Family
ID=51867034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/002452 WO2014181546A1 (ja) | 2013-05-10 | 2014-05-09 | 冷媒蒸発器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9951996B2 (ja) |
JP (1) | JP6098343B2 (ja) |
CN (1) | CN105378422B (ja) |
DE (1) | DE112014002352T5 (ja) |
WO (1) | WO2014181546A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107532868A (zh) * | 2015-05-27 | 2018-01-02 | 株式会社T.Rad | 热交换器的罐构造及其制造方法 |
US10168084B2 (en) | 2013-05-10 | 2019-01-01 | Denso Corporation | Refrigerant evaporator |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10197312B2 (en) * | 2014-08-26 | 2019-02-05 | Mahle International Gmbh | Heat exchanger with reduced length distributor tube |
JP6558269B2 (ja) | 2015-02-27 | 2019-08-14 | 株式会社デンソー | 冷媒蒸発器 |
JP6583071B2 (ja) | 2015-03-20 | 2019-10-02 | 株式会社デンソー | タンク、および熱交換器 |
JP6458617B2 (ja) * | 2015-04-15 | 2019-01-30 | 株式会社デンソー | 冷媒蒸発器 |
US9655287B1 (en) * | 2016-02-03 | 2017-05-16 | International Business Machines Corporation | Heat exchangers for cooling integrated circuits |
US9609785B1 (en) | 2016-02-03 | 2017-03-28 | International Business Machines Corporation | Air-cooled heatsink for cooling integrated circuits |
EP3655718A4 (en) | 2017-07-17 | 2021-03-17 | Alexander Poltorak | SYSTEM AND PROCESS FOR MULTI-FRACTAL HEAT SINK |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004347162A (ja) * | 2003-05-20 | 2004-12-09 | Calsonic Kansei Corp | コンデンサ |
JP2005207716A (ja) * | 2003-04-21 | 2005-08-04 | Denso Corp | 冷媒蒸発器 |
JP2006029697A (ja) * | 2004-07-16 | 2006-02-02 | Denso Corp | 冷媒蒸発器 |
JP2006284134A (ja) * | 2005-04-04 | 2006-10-19 | Matsushita Electric Ind Co Ltd | 熱交換器 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10325645A (ja) * | 1997-05-26 | 1998-12-08 | Denso Corp | 冷媒蒸発器 |
JP4554144B2 (ja) | 2001-06-18 | 2010-09-29 | 昭和電工株式会社 | 蒸発器 |
TW552382B (en) * | 2001-06-18 | 2003-09-11 | Showa Dendo Kk | Evaporator, manufacturing method of the same, header for evaporator and refrigeration system |
JP4024095B2 (ja) | 2002-07-09 | 2007-12-19 | カルソニックカンセイ株式会社 | 熱交換器 |
AU2004284339A1 (en) | 2003-10-29 | 2005-05-06 | Showa Denko K.K. | Heat exchanger |
JP4625687B2 (ja) | 2003-12-08 | 2011-02-02 | 昭和電工株式会社 | 熱交換器 |
JP4120611B2 (ja) | 2004-04-08 | 2008-07-16 | 株式会社デンソー | 冷媒蒸発器 |
JP4207855B2 (ja) | 2004-06-28 | 2009-01-14 | 株式会社デンソー | 冷媒蒸発器 |
KR101260765B1 (ko) * | 2007-09-03 | 2013-05-06 | 한라비스테온공조 주식회사 | 증발기 |
JP5796518B2 (ja) | 2012-03-06 | 2015-10-21 | 株式会社デンソー | 冷媒蒸発器 |
CN105190201B (zh) | 2013-05-10 | 2017-07-04 | 株式会社电装 | 制冷剂蒸发器 |
-
2013
- 2013-05-10 JP JP2013100486A patent/JP6098343B2/ja active Active
-
2014
- 2014-05-09 US US14/889,504 patent/US9951996B2/en active Active
- 2014-05-09 CN CN201480026235.6A patent/CN105378422B/zh active Active
- 2014-05-09 DE DE112014002352.3T patent/DE112014002352T5/de active Pending
- 2014-05-09 WO PCT/JP2014/002452 patent/WO2014181546A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005207716A (ja) * | 2003-04-21 | 2005-08-04 | Denso Corp | 冷媒蒸発器 |
JP2004347162A (ja) * | 2003-05-20 | 2004-12-09 | Calsonic Kansei Corp | コンデンサ |
JP2006029697A (ja) * | 2004-07-16 | 2006-02-02 | Denso Corp | 冷媒蒸発器 |
JP2006284134A (ja) * | 2005-04-04 | 2006-10-19 | Matsushita Electric Ind Co Ltd | 熱交換器 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10168084B2 (en) | 2013-05-10 | 2019-01-01 | Denso Corporation | Refrigerant evaporator |
CN107532868A (zh) * | 2015-05-27 | 2018-01-02 | 株式会社T.Rad | 热交换器的罐构造及其制造方法 |
EP3306254A4 (en) * | 2015-05-27 | 2019-01-16 | T.RAD Co., Ltd. | TANK STRUCTURE FOR HEAT EXCHANGERS AND MANUFACTURING METHOD THEREFOR |
Also Published As
Publication number | Publication date |
---|---|
JP2014219174A (ja) | 2014-11-20 |
DE112014002352T5 (de) | 2016-01-28 |
CN105378422A (zh) | 2016-03-02 |
US20160097597A1 (en) | 2016-04-07 |
JP6098343B2 (ja) | 2017-03-22 |
US9951996B2 (en) | 2018-04-24 |
CN105378422B (zh) | 2018-11-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6098343B2 (ja) | 冷媒蒸発器 | |
JP5454553B2 (ja) | 冷媒蒸発器 | |
WO2012137487A1 (ja) | 熱交換器 | |
JP6123484B2 (ja) | 冷媒蒸発器 | |
JP6341099B2 (ja) | 冷媒蒸発器 | |
WO2014188689A1 (ja) | 冷媒蒸発器 | |
JP5998854B2 (ja) | 冷媒蒸発器 | |
JP3941555B2 (ja) | 冷凍サイクル装置および凝縮器 | |
JP6322982B2 (ja) | 冷媒蒸発器 | |
JP6131705B2 (ja) | 冷媒蒸発器 | |
JP6477306B2 (ja) | 冷媒蒸発器 | |
JP2014228233A (ja) | 冷媒蒸発器 | |
WO2014181547A1 (ja) | 冷媒蒸発器 | |
JP2018189337A (ja) | 冷媒蒸発器およびその製造方法 | |
JP6458617B2 (ja) | 冷媒蒸発器 | |
JP6098358B2 (ja) | 冷媒蒸発器 | |
JP6164837B2 (ja) | 蒸発器構造 | |
JP6613996B2 (ja) | 冷媒蒸発器 | |
JP2017003140A (ja) | 冷媒蒸発器 | |
WO2016063519A1 (ja) | 冷媒蒸発器 | |
JP2017187217A (ja) | 冷媒蒸発器 | |
JP2017003199A (ja) | エバポレータおよびこれを用いた車両用空調装置 |
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: 14795511 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14889504 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1120140023523 Country of ref document: DE Ref document number: 112014002352 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14795511 Country of ref document: EP Kind code of ref document: A1 |