WO2020189488A1 - Temperature adjusting device - Google Patents

Temperature adjusting device Download PDF

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Publication number
WO2020189488A1
WO2020189488A1 PCT/JP2020/010778 JP2020010778W WO2020189488A1 WO 2020189488 A1 WO2020189488 A1 WO 2020189488A1 JP 2020010778 W JP2020010778 W JP 2020010778W WO 2020189488 A1 WO2020189488 A1 WO 2020189488A1
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WO
WIPO (PCT)
Prior art keywords
air
heat exchanger
refrigerant
conditioning unit
heat
Prior art date
Application number
PCT/JP2020/010778
Other languages
French (fr)
Japanese (ja)
Inventor
直孝 岩澤
金子　智
加藤　功
靖明 狩野
林　良介
章博 藤原
智久 今藤
泰夫 菊池
Original Assignee
サンデンホールディングス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by サンデンホールディングス株式会社 filed Critical サンデンホールディングス株式会社
Publication of WO2020189488A1 publication Critical patent/WO2020189488A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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

Definitions

  • the present invention relates to a temperature control device for adjusting the temperature of a predetermined space, for example, an air conditioner for a vehicle.
  • a refrigerant circuit having a compressor, a first heat exchanger, a decompression device, and a second heat exchanger is provided, and air exchanged with the refrigerant flowing through the refrigerant circuit is predetermined. It is known that the temperature of a predetermined space is adjusted by supplying the space to the above (see, for example, Patent Document 1).
  • first heat exchanger and the second heat exchanger are provided with a plurality of flat tubes through which a refrigerant flows and a pair of headers to which both ends of the plurality of flat tubes are connected.
  • a plurality of tubes and a pair of headers are arranged so as to extend in a direction orthogonal to the flow direction of air that exchanges heat with the refrigerant.
  • the external dimensions (width direction dimension and height dimension) in the direction orthogonal to the air flow direction correspond to the required heat exchange capacity. It becomes the size.
  • the ratio of the installation space of the first heat exchanger and the installation space of the second heat exchanger to the installation space of the entire device is large. Therefore, in the temperature control device, when the installation space is limited, it becomes difficult to secure the required heat exchange amount in each of the first heat exchanger and the second heat exchanger.
  • An object of the present invention is to provide a temperature control device capable of securing a required amount of heat exchange even when the installation space is limited.
  • the temperature control device of the present invention includes a refrigerant circuit having a compressor, a first heat exchanger, a decompression device, and a second heat exchanger in order to achieve the above object, and heat exchanges with the refrigerant flowing through the refrigerant circuit.
  • a temperature control device that adjusts the temperature of a predetermined space by supplying the generated air to a predetermined space.
  • the first heat exchanger and the second heat exchanger are flat tubes through which a refrigerant flows, respectively.
  • a plurality of heat exchange units having a pair of headers connected to both ends of the flat tube, and heat exchange between the refrigerant flowing inside the flat tube and the air flowing outside the flat tube.
  • the flat tube is provided with a longitudinal direction in a cross section parallel to the air flow direction, and the pair of headers are provided with their respective longitudinal directions parallel to the air flow direction, and the plurality of heat exchange units are provided. Are laminated in a direction orthogonal to the air flow direction.
  • a flat tube is connected to the pair of headers extending in the flow direction of the air that exchanges heat with the refrigerant in the longitudinal direction of the cross section in the flow direction of the air that exchanges heat with the refrigerant.
  • the amount of heat exchange can be increased by increasing the length of the air that exchanges heat with the refrigerant in the heat exchanger and the second heat exchanger in the flow direction.
  • the present invention it is possible to increase the amount of heat exchange by increasing the length of the air that exchanges heat with the refrigerant in the first heat exchanger and the second heat exchanger in the flow direction, so that the installation space Even when the amount of heat exchange is limited, it is possible to secure the required amount of heat exchange.
  • the temperature control device of the present invention is provided for each of a plurality of seats 2 provided in the passenger compartment 1 of the vehicle as a predetermined space, and is provided for an occupant seated on the seat 2. It is used as a vehicle air conditioner 10 for supplying air whose temperature is adjusted.
  • the vehicle air conditioner 10 includes a refrigerant circuit 20 for circulating a refrigerant, a first air conditioning unit 30 for circulating air that exchanges heat with the refrigerant flowing through the refrigerant circuit 20, and the like. It includes a second air conditioning unit 40.
  • the refrigerant circuit 20 is condensed in a compressor 21 that compresses and discharges the refrigerant, a condenser 22 as a first heat exchanger for radiating and condensing the refrigerant discharged from the compressor 21, and a condenser 22.
  • a decompression device 23 for depressurizing the refrigerant and an evaporator 24 as a second heat exchanger for absorbing and evaporating the refrigerant decompressed by the decompression device 23 are connected in order.
  • the first air conditioning unit 30 is provided at the lower part of the seat 2.
  • the first air conditioning unit 30 has a box-shaped first air flow passage 31a in which a linear first air flow passage 31a through which air that exchanges heat with the refrigerant flowing through the refrigerant circuit 20 flows flows. It has a unit body 31.
  • a condenser 22 is provided in the first air flow passage 31a.
  • a first blower 32 for circulating air from one end to the other end in the first air flow passage 31a is provided.
  • the first blower 32 is provided in the vicinity of the condenser 22 on the upstream side in the air flow direction of the linearly formed first air flow passage 31a.
  • a first indoor side inflow port 31a1 communicating with the inside of the passenger compartment 1 and a first chamber outer inflow port 31a2 communicating with the outside of the passenger compartment 1 are provided.
  • the first chamber side inflow port 31a1 is opened to close the first chamber outside inflow port 31a2, and the first chamber side inflow port 31a1 is closed to close the first chamber.
  • a first inflow port switching damper 33 for switching between the open state of the outer inflow port 31a2 and the open state is provided.
  • a first indoor side outlet 31a3 communicating with the inside of the passenger compartment 1 and a first chamber outer outlet 31a4 communicating with the outside of the passenger compartment 1 are provided.
  • the first chamber side outlet 31a3 is opened to close the first chamber outside outlet 31a4, and the first chamber side outlet 31a3 is closed.
  • a first outlet switching damper 34 for switching between the open outdoor outlet 31a4 and the open outdoor outlet 31a4 is provided.
  • the second air conditioning unit 40 is provided at the lower part of the seat 2 as shown in FIG. As shown in FIGS. 2 and 4, the second air conditioning unit 40 has a box-shaped second air flow passage 41a in which a linear second air flow passage 41a through which air that exchanges heat with the refrigerant flowing through the refrigerant circuit 20 flows flows. It has a unit body 41.
  • An evaporator 24 is provided in the second air flow passage 41a. Further, on one end side of the evaporator 24 in the second air flow passage 41a, a second blower 42 for flowing air from one end to the other end in the second air flow passage 41a is provided.
  • the second blower 42 is provided in the vicinity of the evaporator 24 on the upstream side of the linearly formed second air flow passage 41a in the air flow direction.
  • a second indoor side inflow port 41a1 communicating with the inside of the passenger compartment 1 and a second chamber outer inflow port 41a2 communicating with the outside of the passenger compartment 1 are provided.
  • the second chamber side inflow port 41a1 is opened to close the second chamber outside inflow port 41a2, and the second chamber side inflow port 41a1 is closed to close the second chamber.
  • a second inflow port switching damper 43 for switching between the open state of the outer inflow port 41a2 and the open state is provided.
  • a second indoor side outlet 41a3 communicating with the inside of the passenger compartment 1 and a second chamber outer outlet 41a4 communicating with the outside of the passenger compartment 1 are provided.
  • the second chamber side outlet 41a3 is opened to close the second chamber outside outlet 41a4, and the second chamber side outlet 41a3 is closed to the second.
  • a second outlet switching damper 44 for switching between the open outdoor outlet 41a4 and the open outdoor outlet 41a4 is provided.
  • the first air conditioning unit 30 and the second air conditioning unit 40 are integrally formed and attached to the lower part of the seat 2 as one component.
  • the air flowing into each of the first air flow passage 31a and the second air flow passage 41a from the space in the passenger compartment 1 is sucked, for example, from an indoor side suction port (not shown) provided on the front side of the lower part of the seat 2.
  • the air supplied to the space inside the passenger compartment 1 from each of the first airflow passage 31a and the second airflow passage 41a is the backrest and seat surface of the seat 2, the lower part of the seat 2, the ceiling of the passenger compartment 1, and the vehicle. It is blown into the passenger compartment from an indoor air outlet (not shown) provided on the B-pillar or the like.
  • each of the first air flow passage 31a and the second air flow passage 41a from the outside of the vehicle interior 1 is sucked from the outdoor suction ports 3a and 4a provided on the lower surface of the vehicle.
  • the air discharged to the outside of the vehicle interior 1 from each of the first air flow passage 31a and the second air flow passage 41a flows out from the outdoor discharge ports 3b and 4b provided on the lower surface of the vehicle.
  • each of the condenser 22 and the evaporator 24 has a plurality of heat exchange units 100 and a plurality of heat transfer fins 200.
  • the heat exchange unit 100 has a plurality of flat tubes 110 through which a refrigerant flows, and a pair of headers 120 to which both ends of the plurality of flat tubes 110 are connected.
  • Each of the plurality of flat tubes 110 is composed of a flat tube member, and the internal space is partitioned in the longitudinal direction of the cross section of the flat tube 110 by inner fins (not shown).
  • inner fins not shown
  • four flat tubes 110 are connected to the pair of headers 120.
  • Each of the pair of headers 120 is made of a cylindrical member with both ends closed, and is arranged so as to be parallel to each other at intervals.
  • a plurality of flat tubes 110 are connected to the pair of headers 120 in a state in which the longitudinal direction of the cross section is directed toward the central axis of the header 120 and the header 120 is arranged in the central axial direction.
  • each of the plurality of heat exchange units 100 has a central axis direction which is the longitudinal direction of the header 120 and a flow direction of air for heat exchange with the refrigerant (white in the figure). It is arranged so as to be stacked in a direction (vertical direction in FIG. 8) orthogonal to the air flow direction in a state directed toward (arrow).
  • the plurality of heat exchange units 100 communicate with each other the headers 120 of the adjacent heat exchange units 100, and partition the inside of the header 120 in the central axis direction to form a flow path for the refrigerant in the condenser 22 and the evaporator 24. To.
  • the headers 120 of the heat exchange units 100 adjacent to each other are communicated with each other via the header communicating member 130.
  • the header communicating member 130 includes a plate-shaped portion 131 formed in a rectangular shape and a pair of tubular portions 132 arranged in the longitudinal direction of the plate-shaped portion 131 and penetrating the plate-shaped portion 131. ,have.
  • the header communication member 130 is inserted into a header communication hole (not shown) formed in the header 120 at both ends of each of the pair of tubular portions 132 in a state where the plate-shaped portions 131 are sandwiched between the headers 120 adjacent to each other. Will be done.
  • the plurality of heat transfer fins 200 are corrugated fins in which a metal plate is bent in a wavy shape, and are located between and on both outer sides of the plurality of heat exchange units 100. It is provided on the outside of the heat exchange unit 100.
  • the heat transfer fin 200 is fixed in a state where the apex portion of the corrugated shape is formed in a planar shape and the apex portion formed in a flat shape is in surface contact with the outer surface of the flat tube 110.
  • the condenser 22 and the evaporator 24 communicate the plurality of heat exchange units 100 with each other via the header communication member 130, and the plurality of heat exchange units 100 are flattened so as to be adjacent to each other in the vertical direction. It is manufactured by integrally assembling the heat transfer fins 200 between the tubes 110 and fixing them to each other by brazing.
  • the length A in the air flow direction is larger than the length of at least one of the two side lengths B and C in the direction orthogonal to the air flow direction. It is formed. That is, the length A in the air flow direction is larger than the length B in the width direction in the direction orthogonal to the air flow direction or the length C in the vertical direction. Further, the length C of each of the condenser 22 and the evaporator 24 in the vertical direction is equal to or less than the length in the vertical direction of the first blower 32 and the second blower 42.
  • the refrigerant circulating in the refrigerant circuit 20 circulates in the order of the compressor 21, the condenser 22, the decompression device 23, and the evaporator 24, as shown in FIG. ..
  • the refrigerant is the end of one header 120 of the heat exchange unit 100 located at the lowermost position on the downstream side in the air flow direction, as shown by the solid arrows in FIGS. 5 and 8. Inflows from, and flows out from the end on the upstream side in the air flow direction of one header 120 of the heat exchange unit 100 located at the lowermost side.
  • the refrigerant that has flowed in from the downstream side of one header 120 of the lowermost heat exchange unit 100 in the air flow direction sequentially moves through the flat tube 110 located on the most downstream side of each heat exchange unit 100 in the air flow direction. It circulates upward. Further, the refrigerant flowing into the most downstream side of one header 120 of the uppermost heat exchange unit 100 in the air flow direction sequentially lowers the second flat tube 110 from the most downstream side in the air flow direction of each heat exchange unit 100. It circulates toward. The refrigerant that has flowed into one header 120 of the lowermost heat exchange unit 100 circulates in order from the most downstream side in the air flow direction of each heat exchange unit 100 to the upper side.
  • the refrigerant flowing into one header 120 of the uppermost heat exchange unit 100 flows downward in order through the flat tube 110 on the most upstream side in the air flow direction of each heat exchange unit 100, and the condenser 22 and the evaporator. Outflow from each of the 24.
  • the refrigerant flowing through the flat tube 110 from one header 120 of the heat exchange unit 100 toward the other header 120 is used when flowing through the flat tube 110 of the heat exchange unit 100 adjacent to the upper side or the lower side.
  • the flat tube 110 is circulated from the other header 120 toward one header 120. In this way, the refrigerant that flows in the condenser 22 and the evaporator 24 in the vertical direction meanders between the pair of headers 120.
  • the vehicle air conditioner 10 closes the first chamber outer inflow port 31a2 by the first inflow inlet switching damper 33 in the first air conditioning unit 30, and the first indoor side flow.
  • the inlet 31a1 is opened, the first chamber outer outlet 31a4 is closed by the first outlet switching damper 34, the first chamber side outlet 31a3 is opened, and the first blower 32 is driven.
  • the second chamber side inlet 41a1 is closed by the second inlet switching damper 43 to open the second chamber outer inlet 41a2, and the second chamber 2nd chamber is opened by the second outlet switching damper 44.
  • the inner outlet 41a3 is closed, the second chamber outer outlet 41a4 is opened, and the second blower 42 is driven.
  • the air in the passenger compartment 1 flows in from one end of the first air flow passage 31a and flows through the first air flow passage 31a. Is heated by exchanging heat with the refrigerant that dissipates heat in the condenser 22, and the air heated by the condenser 22 is supplied into the passenger compartment 1.
  • the inside of the vehicle interior 1 is heated to a set temperature by the air supplied from the first air conditioning unit 30.
  • the air outside the passenger compartment 1 flows in from one end of the second air flow passage 41a, and the air flowing through the second air flow passage 41a flows. It is cooled by exchanging heat with the refrigerant that absorbs heat in the evaporator 24, and the air cooled by the evaporator 24 is discharged to the outside of the vehicle interior 1.
  • the first chamber 1 side inflow port 31a1 is closed by the first inflow inlet switching damper 33 in the first air conditioning unit 30.
  • the outer inlet 31a2 is opened, the first chamber side outlet 31a3 is closed by the first outlet switching damper 34, the first chamber outer outlet 31a4 is opened, and the first blower 32 is driven.
  • the second chamber outer inlet 41a2 is closed by the second inlet switching damper 43 to open the second chamber side inlet 41a1, and the second chamber 2nd chamber is opened by the second outlet switching damper 44.
  • the outer outlet 41a4 is closed, the second indoor side outlet 41a3 is opened, and the second blower 42 is driven.
  • the air outside the passenger compartment 1 flows in from one end of the first air flow passage 31a, and the air flowing through the first air flow passage 31a flows. It is heated by exchanging heat with the refrigerant that dissipates heat in the condenser 22, and the air heated by the condenser 22 is discharged to the outside of the passenger compartment 1.
  • the air in the passenger compartment 1 flows in from one end of the second air flow passage 41a, and the air flowing through the second air flow passage 41a flows. It is cooled by exchanging heat with the refrigerant that absorbs heat in the evaporator 24, and the air cooled by the evaporator 24 is supplied into the vehicle interior 1. The inside of the vehicle interior 1 is cooled to a temperature set by the air supplied from the second air conditioning unit 40.
  • the condenser 22 and the evaporator 24 are attached to the flat tube 110 through which the refrigerant flows and both ends of the flat tube 110, respectively.
  • a plurality of heat exchange units 100 having a pair of headers 120 to be connected are provided, and the refrigerant flowing inside the flat tube 110 and the air flowing outside the flat tube 110 exchange heat with each other.
  • the longitudinal direction in the cross section is provided parallel to the air flow direction
  • the pair of headers 120 are provided with their respective longitudinal directions parallel to the air flow direction
  • the plurality of heat exchange units 100 are provided with each other in the air flow direction. They are stacked in orthogonal directions.
  • the amount of heat exchange can be increased by increasing the external dimensions of the air that exchanges heat with the refrigerant in the condenser 22 and the evaporator 24 in the flow direction. Therefore, even when the installation space is limited, It is possible to secure the required amount of heat exchange.
  • the cross-sectional areas of the first air flow passage 31a and the second air flow passage 41a can be reduced, so that the first air conditioning unit 30 and the second air conditioning unit 30 and the second air conditioning unit 40 can be reduced in cross-sectional area. It is possible to reduce the length of the unit 40 in the width direction and the length in the height direction.
  • first air conditioning unit 30 having the condenser 22 and the second air conditioning unit 40 having the evaporator 24 are integrally formed.
  • the first air conditioning unit 30 having the condenser 22 and the second air conditioning unit 40 having the evaporator 24 can be handled as one component, so that the vehicle air conditioner 10 can be provided to the vehicle. It is possible to reduce the work man-hours in the installation work.
  • first blower 32 and the second blower 42 are provided in the vicinity of the condenser 22 and the evaporator 24 in the first air flow passage 31a and the second air flow passage 41a formed in a straight line, respectively.
  • the first blower 32 and the condenser 22 are arranged in the linearly formed first air flow passage 31a, and the second blower 42 and the evaporator 24 are arranged in the linearly formed second air flow passage 41a. Since they are arranged, it is possible to make the first air conditioning unit 30 and the second air conditioning unit 40 compact.
  • the vehicle air conditioner 10 of the present embodiment includes a compressor 21, a first heat exchanger 22'functioning as a condenser or an evaporator, a decompression device 23, and a second heat exchanger 24 functioning as an evaporator or a condenser.
  • the first heat exchanger 22' is provided in the first air flow passage 31a of the first air conditioning unit 30, and the second heat exchanger 24'is provided in the second air flow passage 41a of the second air conditioning unit 40. There is.
  • the first heat exchanger 22'and the second heat exchanger 24' have the same configurations as the condenser 22 and the evaporator 24 in the above embodiment, respectively.
  • the first air conditioning unit 30 does not have the first chamber outer inflow port 31a2 and the first chamber outer outflow port 31a4 in the above embodiment, and both ends of the first air flow passage 31a are only in the passenger compartment 1. Communicating.
  • the second air conditioning unit 40 does not have the second indoor side inflow port 41a1 and the second indoor side outflow port 41a3 in the above embodiment, and the second air flow passage 41a communicates only with the outside of the vehicle interior. Further, the first air conditioning unit 30 and the second air conditioning unit 40 are configured as separate bodies.
  • the first air conditioner unit 30 functions as a dedicated indoor unit for supplying air into the vehicle interior 1, and the second air conditioner unit 40 distributes the refrigerant circuit 20'. It functions as a dedicated outdoor unit that exchanges heat between the refrigerant and the air outside the passenger compartment 1.
  • the flow path of the refrigerant circulating in the refrigerant circuit 20' is changed by switching the flow path of the four-way valve 25, so that the compressor 21, the first heat exchanger 22', the decompression device 23, It is set in the heating refrigerant flow path through which the refrigerant flows in the order of the second heat exchanger 24'.
  • the flow path of the refrigerant circulating in the refrigerant circuit 20' is reduced by switching the flow path of the four-way valve 25 to the compressor 21, the second heat exchanger 24', and the pressure reduction.
  • the device 23 and the first heat exchanger 22' are set in the cooling refrigerant flow path through which the refrigerant flows in this order.
  • the first air conditioning unit 30 drives the first blower 32
  • the second air conditioning unit 40 drives the second blower 42.
  • the air in the vehicle interior 1 flows in from one end of the first air flow passage 31a, and the air flowing through the first air flow passage 31a is the first heat.
  • the air exchanged with the refrigerant in the exchanger 22'and the heat exchanged with the refrigerant in the first heat exchanger 22' is supplied into the passenger compartment 1.
  • the inside of the vehicle interior 1 is heated or cooled to a set temperature by the air supplied from the first air conditioning unit 30.
  • the air outside the passenger compartment 1 flows in from one end of the second air flow passage 41a, and the air flowing through the second air flow passage 41a exchanges second heat.
  • the air exchanged with the refrigerant in the vessel 24'and the heat exchanged with the refrigerant in the evaporator 24 is discharged to the outside of the passenger compartment 1.
  • the flow direction of the air that exchanges heat with the refrigerant in the first heat exchanger 22'and the second heat exchanger 24' as in the above embodiment. Since it is possible to increase the amount of heat exchange by increasing the external dimensions of the above, it is possible to secure the required amount of heat exchange even when the installation space is limited.
  • first air conditioning unit 30 having a first heat exchanger 22'and a second air conditioning unit 40 having a second heat exchanger 24'.
  • the first air conditioning unit 30 having the first heat exchanger 22'and the second air conditioning unit 40 having the second heat exchanger 24' can be handled as one component, respectively.
  • the first air conditioning unit 30 and the second air conditioning unit 40 can be installed separately, they can be freely arranged according to the situation of the installation space of the vehicle air conditioner 10 in the vehicle. It becomes.
  • the first air conditioning unit 30 supplies air that has exchanged heat with the refrigerant into the passenger compartment 1
  • the second air conditioning unit 40 discharges the air that has exchanged heat with the refrigerant to the outside of the passenger compartment 1
  • the refrigerant circuit 20' Makes the first heat exchanger 22'function as a condenser and the second heat exchanger 24'function as an evaporator, and the second heat exchanger 24'function as a condenser. It has a four-way valve 25 that switches between a cooling refrigerant flow path that causes the first heat exchanger 22'to function as an evaporator.
  • the first air-conditioning unit 30 can be arranged in the vehicle interior 1 and the second air-conditioning unit 40 can be arranged outside the vehicle compartment 1. Therefore, the vehicle air conditioner 10 can be installed in the vehicle compartment 1. It is possible to save space.
  • the temperature control device of the present invention is applied to the vehicle air conditioner 10, but the present invention is not limited to this.
  • the temperature control device of the present invention is particularly effective when the size of the air flow path for heat exchange with the refrigerant in the width direction and the height direction is limited.
  • an air conditioner in a building or refrigeration It can be applied to cooling devices such as showcases and refrigerated showcases.
  • first air-conditioning unit 30 and the second air-conditioning unit 40 are arranged below the seat 2 of the passenger compartment 1, but the present invention is not limited to this.
  • the first air conditioning unit 30 and the second air conditioning unit 40 may be arranged, for example, on the ceiling of the vehicle interior, the door trim, the lower part of the armrest at the center in the width direction of the vehicle interior, and the like.
  • the second air conditioning unit 40 in which the evaporator 24 (second heat exchanger 24') and the second blower 42 are integrally formed is shown, but the present invention is not limited to this.
  • Other parts such as the compressor 21 and the decompression device 23 may be integrally configured in the first air conditioning unit 30 or the second air conditioning unit 40.
  • the header is formed in a cylindrical shape, but the present invention is not limited to this, and for example, a semi-cylindrical shape or a square tubular shape extending in the air flow direction may be used.
  • the headers 120 adjacent to each other of the plurality of heat exchange units 100 are connected by brazing, but if the headers extend in the air flow direction, the headers adjacent to each other are integrated. May be formed in.
  • the refrigerant flows through the flat tube 110 from one header 120 toward the other header 120 in one heat exchange unit 100, and one heat exchange unit adjacent to one heat exchange unit 100.
  • the flat tube 110 is circulated from the other header 120 toward the one header 120 so that the flat tubes 110 circulate while meandering in the direction in which the plurality of heat exchange units 100 are arranged. It is not limited to this. If the refrigerant meanders in the direction in which the plurality of heat exchange units 100 are arranged, the refrigerant flows through the flat tube 110 from one header 120 toward the other header 120 in the adjacent heat exchange units 100.
  • the flat tube 110 may be circulated from the other header 120 toward the one header 120 in the plurality of adjacent heat exchange units 100 with respect to the plurality of adjacent heat exchange units 100.
  • the first air-conditioning unit 30 and the second air-conditioning unit 40 are provided with the first blower 32 and the second blower 42, respectively, but the present invention is not limited to this.
  • a common blower 50 such as a cross flow fan may be provided in the first air conditioning unit 30 and the second air conditioning unit 40 that are integrally provided.
  • one blower 50 makes it possible to circulate air through each of the first air flow passage 31a and the second air flow passage 41a, thereby reducing the number of parts constituting the vehicle air conditioner 10. It becomes possible.
  • the vehicle air conditioner 10 is installed in an installation space where the size in the height direction is limited, such as the lower part of the seat in the vehicle interior, is shown, but the present invention is not limited to this. Absent.
  • the vehicle air conditioner when the vehicle air conditioner is installed between adjacent seats, the vehicle air conditioner may be installed in an installation space where the size in the width direction is limited.
  • the first air conditioning unit 30 and the second air conditioning unit 40 are arranged side by side in the front-rear direction or the up-down direction. As a result, it is possible to secure the required amount of heat exchange even in the installation space where the size in the width direction of the vehicle interior is limited.
  • a plurality of heat exchange units 100 are laminated to form a condenser 22 and an evaporator 24, but the present invention is not limited to this.
  • a heat exchange unit in which the refrigerant flows from one of the pair of headers to the other and a heat exchange unit in which the refrigerant flows from the other to the other are integrally formed in advance, and the heat forming a pair formed integrally.
  • a heat exchanger may be configured by stacking a plurality of pairs of exchange units. In this case, since the heat exchanger can be assembled by using the paired heat exchange units as one component, it is possible to reduce the work man-hours in the assembling work.

Abstract

A temperature adjusting device is provided which can ensure the necessary amount of heat exchange even when the installation space is limited. A condenser 22 and an evaporator 24 are each provided with multiple heat exchange units 100 each of which has a flat tube 110 for circulating a refrigerant, and a pair of headers 120 connected to both ends of the flat tube 110, and exchange heat between the refrigerant flowing inside the flat tube 110 and the air flowing outside of the flat tube 110. The flat tubes are disposed with the longitudinal direction in cross-section oriented in the direction of airflow, and the pair of headers 120 are both disposed with the longitudinal direction thereof extending in the direction of airflow, and the multiple heat exchange units 100 are stacked in a direction orthogonal to the direction of airflow.

Description

温度調節装置Temperature controller
　本発明は、例えば、車両用空気調和装置等、所定の空間の温度を調節するための温度調節装置に関するものである。 The present invention relates to a temperature control device for adjusting the temperature of a predetermined space, for example, an air conditioner for a vehicle.
　従来、この種の温度調節装置としては、圧縮機、第１熱交換器、減圧装置、第２熱交換器、を有する冷媒回路を備え、前記冷媒回路を流通する冷媒と熱交換した空気を所定の空間に供給することで所定の空間の温度を調節するものが知られている（例えば、特許文献１参照）。 Conventionally, as this type of temperature control device, a refrigerant circuit having a compressor, a first heat exchanger, a decompression device, and a second heat exchanger is provided, and air exchanged with the refrigerant flowing through the refrigerant circuit is predetermined. It is known that the temperature of a predetermined space is adjusted by supplying the space to the above (see, for example, Patent Document 1).
　前記第１熱交換器及び前記第２熱交換器は、冷媒が流通する複数の扁平チューブと、複数の扁平チューブの両端部が接続される一対のヘッダと、を備えているものがある。前記第１熱交換器及び前記第２熱交換器は、複数のチューブ及び一対のヘッダが、それぞれ冷媒と熱交換する空気の流通方向と直交する方向に延びる配置となっている。 Some of the first heat exchanger and the second heat exchanger are provided with a plurality of flat tubes through which a refrigerant flows and a pair of headers to which both ends of the plurality of flat tubes are connected. In the first heat exchanger and the second heat exchanger, a plurality of tubes and a pair of headers are arranged so as to extend in a direction orthogonal to the flow direction of air that exchanges heat with the refrigerant.
　前記第１熱交換器及び前記第２熱交換器は、空気流通方向に対して直交する方向の外形寸法（幅方向寸法及び高さ寸法）が、要求される熱交換能力の大きさに応じた大きさとなる。 In the first heat exchanger and the second heat exchanger, the external dimensions (width direction dimension and height dimension) in the direction orthogonal to the air flow direction correspond to the required heat exchange capacity. It becomes the size.
特許第６１１７０３８号公報Japanese Patent No. 6117038
　このため、前記温度調節装置では、装置全体の設置スペースに対して前記第１熱交換器及び前記第２熱交換器の設置スペースの割合が大きい。したがって、前記温度調節装置では、設置スペースが限られる場合に、前記第１熱交換器及び前記第２熱交換器のそれぞれにおいて必要な熱交換量を確保することが困難となる。 Therefore, in the temperature control device, the ratio of the installation space of the first heat exchanger and the installation space of the second heat exchanger to the installation space of the entire device is large. Therefore, in the temperature control device, when the installation space is limited, it becomes difficult to secure the required heat exchange amount in each of the first heat exchanger and the second heat exchanger.
　本発明の目的とするところは、設置スペースが限られる場合においても、必要な熱交換量を確保することのできる温度調節装置を提供することにある。 An object of the present invention is to provide a temperature control device capable of securing a required amount of heat exchange even when the installation space is limited.
　本発明の温度調節装置は、前記目的を達成するために、圧縮機、第１熱交換器、減圧装置、第２熱交換器を有する冷媒回路を備え、前記冷媒回路を流通する冷媒と熱交換した空気を所定の空間に供給することで所定の空間の温度を調節する温度調節装置であって、前記第１熱交換器及び前記第２熱交換器は、それぞれ、冷媒が流通する扁平チューブと、前記扁平チューブの両端部に接続される一対のヘッダと、を有する複数の熱交換ユニットを備え、前記扁平チューブの内側を流通する冷媒と前記扁平チューブの外側を流通する空気とを熱交換するものであり、前記扁平チューブは、横断面における長手方向を空気の流通方向と平行に設け、前記一対のヘッダは、それぞれの長手方向を空気の流通方向と平行に設け、前記複数の熱交換ユニットは、互いに空気の流通方向と直交する方向に積層している。 The temperature control device of the present invention includes a refrigerant circuit having a compressor, a first heat exchanger, a decompression device, and a second heat exchanger in order to achieve the above object, and heat exchanges with the refrigerant flowing through the refrigerant circuit. A temperature control device that adjusts the temperature of a predetermined space by supplying the generated air to a predetermined space. The first heat exchanger and the second heat exchanger are flat tubes through which a refrigerant flows, respectively. A plurality of heat exchange units having a pair of headers connected to both ends of the flat tube, and heat exchange between the refrigerant flowing inside the flat tube and the air flowing outside the flat tube. The flat tube is provided with a longitudinal direction in a cross section parallel to the air flow direction, and the pair of headers are provided with their respective longitudinal directions parallel to the air flow direction, and the plurality of heat exchange units are provided. Are laminated in a direction orthogonal to the air flow direction.
　これにより、冷媒と熱交換する空気の流通方向に延びる一対のヘッダに対して、横断面の長手方向を冷媒と熱交換する空気の流通方向に向けた扁平チューブが接続されることから、第１熱交換器及び第２熱交換器における冷媒と熱交換する空気の流通方向の長さを大きくすることで熱交換量の増加が可能となる。 As a result, a flat tube is connected to the pair of headers extending in the flow direction of the air that exchanges heat with the refrigerant in the longitudinal direction of the cross section in the flow direction of the air that exchanges heat with the refrigerant. The amount of heat exchange can be increased by increasing the length of the air that exchanges heat with the refrigerant in the heat exchanger and the second heat exchanger in the flow direction.
　本発明によれば、第１熱交換器及び第２熱交換器における冷媒と熱交換する空気の流通方向の長さを大きくすることで熱交換量を増加させることが可能となるので、設置スペースが限られる場合においても、必要な熱交換量を確保することが可能となる。 According to the present invention, it is possible to increase the amount of heat exchange by increasing the length of the air that exchanges heat with the refrigerant in the first heat exchanger and the second heat exchanger in the flow direction, so that the installation space Even when the amount of heat exchange is limited, it is possible to secure the required amount of heat exchange.
本発明の一実施形態を示す車両用空気調和装置を適用した車両の要部側面断面図である。It is a side sectional view of the main part of the vehicle to which the air conditioner for a vehicle which shows one Embodiment of this invention is applied. 車両用空気調和装置の平面図である。It is a top view of the air conditioner for a vehicle. 第１空調ユニットの側面断面図である。It is a side sectional view of the 1st air conditioning unit. 第２空調ユニットの側面断面図である。It is a side sectional view of the 2nd air conditioning unit. 凝縮器及び蒸発器の全体斜視図である。It is an overall perspective view of a condenser and an evaporator. 凝縮器及び蒸発器の平面図である。It is a top view of a condenser and an evaporator. 凝縮器及び蒸発器を空気の流通方向上流側から見た図である。It is the figure which looked at the condenser and the evaporator from the upstream side in the air flow direction. 凝縮器及び蒸発器の側面図である。It is a side view of a condenser and an evaporator. 凝縮器及び蒸発器の組付け方法を説明する図である。It is a figure explaining the assembling method of a condenser and an evaporator. 本発明の他の実施形態を示す車両用空気調和装置の平面図である。It is a top view of the air conditioner for vehicles which shows the other embodiment of this invention. 第１空調ユニットの側面断面図である。It is a side sectional view of the 1st air conditioning unit. 第２空調ユニットの側面断面図である。It is a side sectional view of the 2nd air conditioning unit. 送風機のその他の例を示す車両用空気調和装置の平面図である。It is a top view of the air conditioner for a vehicle which shows the other example of a blower.
　図１乃至図９は、本発明の一実施形態を示すものである。 1 to 9 show an embodiment of the present invention.
　本発明の温度調節装置は、例えば、図１に示すように、所定の空間としての車両の車室１内に設けられた複数のシート２毎に設けられ、シート２に着座した乗員に対して温度を調節した空気を供給するための車両用空気調和装置１０として用いられるものである。 As shown in FIG. 1, the temperature control device of the present invention is provided for each of a plurality of seats 2 provided in the passenger compartment 1 of the vehicle as a predetermined space, and is provided for an occupant seated on the seat 2. It is used as a vehicle air conditioner 10 for supplying air whose temperature is adjusted.
　この車両用空気調和装置１０は、図２に示すように、冷媒を循環させるための冷媒回路２０と、冷媒回路２０を流通する冷媒と熱交換する空気を流通させるための第１空調ユニット３０及び第２空調ユニット４０と、を備えている。 As shown in FIG. 2, the vehicle air conditioner 10 includes a refrigerant circuit 20 for circulating a refrigerant, a first air conditioning unit 30 for circulating air that exchanges heat with the refrigerant flowing through the refrigerant circuit 20, and the like. It includes a second air conditioning unit 40.
　冷媒回路２０は、冷媒を圧縮して吐出する圧縮機２１と、圧縮機２１から吐出された冷媒を放熱させて凝縮させるための第１熱交換器としての凝縮器２２、凝縮器２２において凝縮した冷媒を減圧させるための減圧装置２３、減圧装置２３によって減圧された冷媒を吸熱させて蒸発させるための第２熱交換器としての蒸発器２４、が順に接続されている。 The refrigerant circuit 20 is condensed in a compressor 21 that compresses and discharges the refrigerant, a condenser 22 as a first heat exchanger for radiating and condensing the refrigerant discharged from the compressor 21, and a condenser 22. A decompression device 23 for depressurizing the refrigerant and an evaporator 24 as a second heat exchanger for absorbing and evaporating the refrigerant decompressed by the decompression device 23 are connected in order.
　第１空調ユニット３０は、図１に示すように、シート２の下部に設けられている。第１空調ユニット３０は、図２及び図３に示すように、冷媒回路２０を流通する冷媒と熱交換する空気が流通する直線状の第１空気流通路３１ａが形成された箱状の第１ユニット本体３１を有している。第１空気流通路３１ａには、凝縮器２２が設けられている。また、第１空気流通路３１ａにおける凝縮器２２の一端側には、第１空気流通路３１ａにおいて一端から他端に向かって空気を流通させるための第１送風機３２が設けられている。第１送風機３２は、直線状に形成された第１空気流通路３１ａの空気流通方向上流側における凝縮器２２の近傍に設けられている。 As shown in FIG. 1, the first air conditioning unit 30 is provided at the lower part of the seat 2. As shown in FIGS. 2 and 3, the first air conditioning unit 30 has a box-shaped first air flow passage 31a in which a linear first air flow passage 31a through which air that exchanges heat with the refrigerant flowing through the refrigerant circuit 20 flows flows. It has a unit body 31. A condenser 22 is provided in the first air flow passage 31a. Further, on one end side of the condenser 22 in the first air flow passage 31a, a first blower 32 for circulating air from one end to the other end in the first air flow passage 31a is provided. The first blower 32 is provided in the vicinity of the condenser 22 on the upstream side in the air flow direction of the linearly formed first air flow passage 31a.
　第１空気流通路３１ａの一端には、車室１内に連通する第１室内側流入口３１ａ１と、車室１外に連通する第１室外側流入口３１ａ２と、が設けられている。第１空気流通路３１ａの一端部には、第１室内側流入口３１ａ１を開放して第１室外側流入口３１ａ２を閉鎖した状態と、第１室内側流入口３１ａ１を閉鎖して第１室外側流入口３１ａ２を開放した状態と、を切り替えるための第１流入口切替ダンパ３３が設けられている。 At one end of the first air flow passage 31a, a first indoor side inflow port 31a1 communicating with the inside of the passenger compartment 1 and a first chamber outer inflow port 31a2 communicating with the outside of the passenger compartment 1 are provided. At one end of the first air flow passage 31a, the first chamber side inflow port 31a1 is opened to close the first chamber outside inflow port 31a2, and the first chamber side inflow port 31a1 is closed to close the first chamber. A first inflow port switching damper 33 for switching between the open state of the outer inflow port 31a2 and the open state is provided.
　第１空気流通路３１ａの他端には、車室１内に連通する第１室内側流出口３１ａ３と、車室１外に連通する第１室外側流出口３１ａ４と、が設けられている。第１空気流通路３１ａの他端部には、第１室内側流出口３１ａ３を開放して第１室外側流出口３１ａ４を閉鎖した状態と、第１室内側流出口３１ａ３を閉鎖して第１室外側流出口３１ａ４を開放した状態と、を切り替えるための第１流出口切替ダンパ３４が設けられている。 At the other end of the first air flow passage 31a, a first indoor side outlet 31a3 communicating with the inside of the passenger compartment 1 and a first chamber outer outlet 31a4 communicating with the outside of the passenger compartment 1 are provided. At the other end of the first air flow passage 31a, the first chamber side outlet 31a3 is opened to close the first chamber outside outlet 31a4, and the first chamber side outlet 31a3 is closed. A first outlet switching damper 34 for switching between the open outdoor outlet 31a4 and the open outdoor outlet 31a4 is provided.
　第２空調ユニット４０は、図１に示すように、シート２の下部に設けられている。第２空調ユニット４０は、図２及び図４に示すように、冷媒回路２０を流通する冷媒と熱交換する空気が流通する直線状の第２空気流通路４１ａが形成された箱状の第２ユニット本体４１を有している。第２空気流通路４１ａには、蒸発器２４が設けられている。また、第２空気流通路４１ａにおける蒸発器２４の一端側には、第２空気流通路４１ａにおいて一端から他端に向かって空気を流通させるための第２送風機４２が設けられている。第２送風機４２は、直線状に形成された第２空気流通路４１ａの空気流通方向上流側における蒸発器２４の近傍に設けられている。 The second air conditioning unit 40 is provided at the lower part of the seat 2 as shown in FIG. As shown in FIGS. 2 and 4, the second air conditioning unit 40 has a box-shaped second air flow passage 41a in which a linear second air flow passage 41a through which air that exchanges heat with the refrigerant flowing through the refrigerant circuit 20 flows flows. It has a unit body 41. An evaporator 24 is provided in the second air flow passage 41a. Further, on one end side of the evaporator 24 in the second air flow passage 41a, a second blower 42 for flowing air from one end to the other end in the second air flow passage 41a is provided. The second blower 42 is provided in the vicinity of the evaporator 24 on the upstream side of the linearly formed second air flow passage 41a in the air flow direction.
　第２空気流通路４１ａの一端には、車室１内に連通する第２室内側流入口４１ａ１と、車室１外に連通する第２室外側流入口４１ａ２と、が設けられている。第２空気流通路４１ａの一端部には、第２室内側流入口４１ａ１を開放して第２室外側流入口４１ａ２を閉鎖した状態と、第２室内側流入口４１ａ１を閉鎖して第２室外側流入口４１ａ２を開放した状態と、を切り替えるための第２流入口切替ダンパ４３が設けられている。 At one end of the second air flow passage 41a, a second indoor side inflow port 41a1 communicating with the inside of the passenger compartment 1 and a second chamber outer inflow port 41a2 communicating with the outside of the passenger compartment 1 are provided. At one end of the second air flow passage 41a, the second chamber side inflow port 41a1 is opened to close the second chamber outside inflow port 41a2, and the second chamber side inflow port 41a1 is closed to close the second chamber. A second inflow port switching damper 43 for switching between the open state of the outer inflow port 41a2 and the open state is provided.
　第２空気流通路４１ａの他端には、車室１内に連通する第２室内側流出口４１ａ３と、車室１外に連通する第２室外側流出口４１ａ４と、が設けられている。第２空気流通路４１ａの他端部には、第２室内側流出口４１ａ３を開放して第２室外側流出口４１ａ４を閉鎖した状態と、第２室内側流出口４１ａ３を閉鎖して第２室外側流出口４１ａ４を開放した状態と、を切り替えるための第２流出口切替ダンパ４４が設けられている。 At the other end of the second air flow passage 41a, a second indoor side outlet 41a3 communicating with the inside of the passenger compartment 1 and a second chamber outer outlet 41a4 communicating with the outside of the passenger compartment 1 are provided. At the other end of the second air flow passage 41a, the second chamber side outlet 41a3 is opened to close the second chamber outside outlet 41a4, and the second chamber side outlet 41a3 is closed to the second. A second outlet switching damper 44 for switching between the open outdoor outlet 41a4 and the open outdoor outlet 41a4 is provided.
　第１空調ユニット３０及び第２空調ユニット４０は、一体に形成され、一部品としてシート２の下部に取り付けられる。 The first air conditioning unit 30 and the second air conditioning unit 40 are integrally formed and attached to the lower part of the seat 2 as one component.
　車室１内の空間から第１空気流通路３１ａ及び第２空気流通路４１ａのそれぞれに流入する空気は、例えば、シート２の下部の前面側に設けられた図示しない室内側吸入口から吸入される。第１空気流通路３１ａ及び第２空気流通路４１ａのそれぞれから車室１内の空間に供給される空気は、シート２の背もたれや座面、シート２の下部、車室１の天井部、車両のＢピラー等に設けられた図示しない室内側吹出口から車室内に吹き出される。 The air flowing into each of the first air flow passage 31a and the second air flow passage 41a from the space in the passenger compartment 1 is sucked, for example, from an indoor side suction port (not shown) provided on the front side of the lower part of the seat 2. To. The air supplied to the space inside the passenger compartment 1 from each of the first airflow passage 31a and the second airflow passage 41a is the backrest and seat surface of the seat 2, the lower part of the seat 2, the ceiling of the passenger compartment 1, and the vehicle. It is blown into the passenger compartment from an indoor air outlet (not shown) provided on the B-pillar or the like.
　車室１外から第１空気流通路３１ａ及び第２空気流通路４１ａのそれぞれに流入する空気は、車両の下面に設けられた室外側吸入口３ａ，４ａから吸入される。第１空気流通路３１ａ及び第２空気流通路４１ａのそれぞれから車室１外に排出される空気は、車両の下面に設けられた室外側排出口３ｂ，４ｂから流出する。 The air flowing into each of the first air flow passage 31a and the second air flow passage 41a from the outside of the vehicle interior 1 is sucked from the outdoor suction ports 3a and 4a provided on the lower surface of the vehicle. The air discharged to the outside of the vehicle interior 1 from each of the first air flow passage 31a and the second air flow passage 41a flows out from the outdoor discharge ports 3b and 4b provided on the lower surface of the vehicle.
　凝縮器２２及び蒸発器２４は、それぞれ、図５に示すように、複数の熱交換ユニット１００と、複数の伝熱フィン２００と、を有している。 As shown in FIG. 5, each of the condenser 22 and the evaporator 24 has a plurality of heat exchange units 100 and a plurality of heat transfer fins 200.
　熱交換ユニット１００は、図５乃至図９に示すように、冷媒が流通する複数の扁平チューブ１１０と、複数の扁平チューブ１１０の両端が接続される一対のヘッダ１２０と、を有している。 As shown in FIGS. 5 to 9, the heat exchange unit 100 has a plurality of flat tubes 110 through which a refrigerant flows, and a pair of headers 120 to which both ends of the plurality of flat tubes 110 are connected.
　複数の扁平チューブ１１０は、それぞれ、扁平形状の管部材からなり、内部空間が図示しないインナフィンによって扁平チューブ１１０の横断面の長手方向に仕切られている。本実施形態では、図６に示すように、一対のヘッダ１２０に対して４本の扁平チューブ１１０が接続されている。 Each of the plurality of flat tubes 110 is composed of a flat tube member, and the internal space is partitioned in the longitudinal direction of the cross section of the flat tube 110 by inner fins (not shown). In this embodiment, as shown in FIG. 6, four flat tubes 110 are connected to the pair of headers 120.
　一対のヘッダ１２０は、それぞれ、両端が閉鎖された円筒形状の部材からなり、互いに間隔をおいて平行を成すように配置されている。一対のヘッダ１２０には、複数の扁平チューブ１１０が、それぞれ、横断面の長手方向をヘッダ１２０の中心軸方向に向けるとともに、ヘッダ１２０の中心軸方向に配置された状態で接続されている。 Each of the pair of headers 120 is made of a cylindrical member with both ends closed, and is arranged so as to be parallel to each other at intervals. A plurality of flat tubes 110 are connected to the pair of headers 120 in a state in which the longitudinal direction of the cross section is directed toward the central axis of the header 120 and the header 120 is arranged in the central axial direction.
　複数の熱交換ユニット１００は、図５、図６及び図８に示すように、それぞれ、ヘッダ１２０の長手方向である中心軸方向を、冷媒と熱交換する空気の流通方向（図中の白抜き矢印）に向けた状態で、空気の流通方向と直交する方向（図８における上下方向）に積層されるように配置されている。 As shown in FIGS. 5, 6 and 8, each of the plurality of heat exchange units 100 has a central axis direction which is the longitudinal direction of the header 120 and a flow direction of air for heat exchange with the refrigerant (white in the figure). It is arranged so as to be stacked in a direction (vertical direction in FIG. 8) orthogonal to the air flow direction in a state directed toward (arrow).
　複数の熱交換ユニット１００は、隣り合う熱交換ユニット１００のヘッダ１２０同士を連通させるとともに、ヘッダ１２０内を中心軸方向に仕切ることによって、凝縮器２２及び蒸発器２４における冷媒の流通経路が形成される。 The plurality of heat exchange units 100 communicate with each other the headers 120 of the adjacent heat exchange units 100, and partition the inside of the header 120 in the central axis direction to form a flow path for the refrigerant in the condenser 22 and the evaporator 24. To.
　互いに隣り合う熱交換ユニット１００のヘッダ１２０は、図７乃至図９に示すように、ヘッダ連通部材１３０を介して連通される。ヘッダ連通部材１３０は、図９に示すように、矩形状に形成された板状部１３１と、板状部１３１の長手方向に配置され、板状部１３１を貫通する一対の筒状部１３２と、を有している。ヘッダ連通部材１３０は、板状部１３１が互いに隣り合うヘッダ１２０の間に挟まれた状態で、一対の筒状部１３２のそれぞれの両端部がヘッダ１２０に形成された図示しないヘッダ連通孔に挿入される。 As shown in FIGS. 7 to 9, the headers 120 of the heat exchange units 100 adjacent to each other are communicated with each other via the header communicating member 130. As shown in FIG. 9, the header communicating member 130 includes a plate-shaped portion 131 formed in a rectangular shape and a pair of tubular portions 132 arranged in the longitudinal direction of the plate-shaped portion 131 and penetrating the plate-shaped portion 131. ,have. The header communication member 130 is inserted into a header communication hole (not shown) formed in the header 120 at both ends of each of the pair of tubular portions 132 in a state where the plate-shaped portions 131 are sandwiched between the headers 120 adjacent to each other. Will be done.
　複数の伝熱フィン２００は、図５乃至図９に示すように、それぞれ、金属板を波形に屈曲したコルゲートフィンであり、複数の熱交換ユニット１００のそれぞれの間、及び、両外側に位置する熱交換ユニット１００の外側に設けられている。伝熱フィン２００は、波形の頂点部分が平面状に形成され、平面状に形成された頂点部分が扁平チューブ１１０の外面に面接触した状態で固定される。 As shown in FIGS. 5 to 9, the plurality of heat transfer fins 200 are corrugated fins in which a metal plate is bent in a wavy shape, and are located between and on both outer sides of the plurality of heat exchange units 100. It is provided on the outside of the heat exchange unit 100. The heat transfer fin 200 is fixed in a state where the apex portion of the corrugated shape is formed in a planar shape and the apex portion formed in a flat shape is in surface contact with the outer surface of the flat tube 110.
　凝縮器２２及び蒸発器２４は、図９に示すように、複数の熱交換ユニット１００を、ヘッダ連通部材１３０を介して互いに連通させるとともに、複数の熱交換ユニット１００において互いに上下方向に隣り合う扁平チューブ１１０の間に伝熱フィン２００を一体に組み付けて、互いにロウ付けによって固定することで製造される。 As shown in FIG. 9, the condenser 22 and the evaporator 24 communicate the plurality of heat exchange units 100 with each other via the header communication member 130, and the plurality of heat exchange units 100 are flattened so as to be adjacent to each other in the vertical direction. It is manufactured by integrally assembling the heat transfer fins 200 between the tubes 110 and fixing them to each other by brazing.
　凝縮器２２及び蒸発器２４は、それぞれ、空気流通方向の長さＡが、空気の流通方向に対して直交する方向における２辺の長さＢ，Ｃのうち、少なくとも一方の辺の長さより大きく形成されている。即ち、空気流通方向の長さＡは、空気流通方向と直交する方向の幅方向の長さＢ、または、上下方向の長さＣよりも大きい。また、凝縮器２２及び蒸発器２４は、それぞれの上下方向の長さＣが、第１送風機３２及び第２送風機４２の上下方向の長さ以下である。 In each of the condenser 22 and the evaporator 24, the length A in the air flow direction is larger than the length of at least one of the two side lengths B and C in the direction orthogonal to the air flow direction. It is formed. That is, the length A in the air flow direction is larger than the length B in the width direction in the direction orthogonal to the air flow direction or the length C in the vertical direction. Further, the length C of each of the condenser 22 and the evaporator 24 in the vertical direction is equal to or less than the length in the vertical direction of the first blower 32 and the second blower 42.
　以上のように構成された車両用空気調和装置１０において、冷媒回路２０を循環する冷媒は、図２に示すように、圧縮機２１、凝縮器２２、減圧装置２３、蒸発器２４の順に流通する。 In the vehicle air conditioner 10 configured as described above, the refrigerant circulating in the refrigerant circuit 20 circulates in the order of the compressor 21, the condenser 22, the decompression device 23, and the evaporator 24, as shown in FIG. ..
　凝縮器２２及び蒸発器２４において、冷媒は、図５及び図８の実線の矢印で示すように、最も下側に位置する熱交換ユニット１００の一方のヘッダ１２０の空気流通方向下流側の端部から流入し、最も下側に位置する熱交換ユニット１００の一方のヘッダ１２０の空気流通方向上流側の端部から流出する。 In the condenser 22 and the evaporator 24, the refrigerant is the end of one header 120 of the heat exchange unit 100 located at the lowermost position on the downstream side in the air flow direction, as shown by the solid arrows in FIGS. 5 and 8. Inflows from, and flows out from the end on the upstream side in the air flow direction of one header 120 of the heat exchange unit 100 located at the lowermost side.
　具体的には、最も下側の熱交換ユニット１００の一方のヘッダ１２０の空気流通方向下流側から流入した冷媒は、各熱交換ユニット１００の空気流通方向最下流側に位置する扁平チューブ１１０を順に上側に向かって流通する。また、最も上側の熱交換ユニット１００の一方のヘッダ１２０の空気流通方向最下流側に流入した冷媒は、各熱交換ユニット１００の空気流通方向最下流側から二番目の扁平チューブ１１０を順に下側に向かって流通する。最も下側の熱交換ユニット１００の一方のヘッダ１２０に流入した冷媒は、各熱交換ユニット１００の空気流通方向最下流側から三番目の扁平チューブ１１０を順に上側に向かって流通する。最も上側の熱交換ユニット１００の一方のヘッダ１２０に流入した冷媒は、各熱交換ユニット１００の空気流通方向最上流側の扁平チューブ１１０を順に下側に向かって流通し、凝縮器２２及び蒸発器２４のそれぞれから流出する。 Specifically, the refrigerant that has flowed in from the downstream side of one header 120 of the lowermost heat exchange unit 100 in the air flow direction sequentially moves through the flat tube 110 located on the most downstream side of each heat exchange unit 100 in the air flow direction. It circulates upward. Further, the refrigerant flowing into the most downstream side of one header 120 of the uppermost heat exchange unit 100 in the air flow direction sequentially lowers the second flat tube 110 from the most downstream side in the air flow direction of each heat exchange unit 100. It circulates toward. The refrigerant that has flowed into one header 120 of the lowermost heat exchange unit 100 circulates in order from the most downstream side in the air flow direction of each heat exchange unit 100 to the upper side. The refrigerant flowing into one header 120 of the uppermost heat exchange unit 100 flows downward in order through the flat tube 110 on the most upstream side in the air flow direction of each heat exchange unit 100, and the condenser 22 and the evaporator. Outflow from each of the 24.
　このとき、熱交換ユニット１００の一方のヘッダ１２０から他方のヘッダ１２０に向かって扁平チューブ１１０を流通した冷媒は、上側または下側に隣り合う熱交換ユニット１００の扁平チューブ１１０を流通する際に、他方のヘッダ１２０から一方のヘッダ１２０に向かって扁平チューブ１１０を流通する。このように、凝縮器２２及び蒸発器２４内を上下方向に流通する冷媒は、一対のヘッダ１２０の間で蛇行しながら流通する。 At this time, the refrigerant flowing through the flat tube 110 from one header 120 of the heat exchange unit 100 toward the other header 120 is used when flowing through the flat tube 110 of the heat exchange unit 100 adjacent to the upper side or the lower side. The flat tube 110 is circulated from the other header 120 toward one header 120. In this way, the refrigerant that flows in the condenser 22 and the evaporator 24 in the vertical direction meanders between the pair of headers 120.
　車両用空気調和装置１０は、車室１内の暖房を行う場合に、第１空調ユニット３０において、第１流入口切替ダンパ３３によって第１室外側流入口３１ａ２を閉鎖して第１室内側流入口３１ａ１を開放し、第１流出口切替ダンパ３４によって第１室外側流出口３１ａ４を閉鎖して第１室内側流出口３１ａ３を開放し、第１送風機３２を駆動させる。また、第２空調ユニット４０では、第２流入口切替ダンパ４３によって第２室内側流入口４１ａ１を閉鎖して第２室外側流入口４１ａ２を開放し、第２流出口切替ダンパ４４によって第２室内側流出口４１ａ３を閉鎖して第２室外側流出口４１ａ４を開放し、第２送風機４２を駆動させる。 When heating the inside of the vehicle compartment 1, the vehicle air conditioner 10 closes the first chamber outer inflow port 31a2 by the first inflow inlet switching damper 33 in the first air conditioning unit 30, and the first indoor side flow. The inlet 31a1 is opened, the first chamber outer outlet 31a4 is closed by the first outlet switching damper 34, the first chamber side outlet 31a3 is opened, and the first blower 32 is driven. Further, in the second air conditioning unit 40, the second chamber side inlet 41a1 is closed by the second inlet switching damper 43 to open the second chamber outer inlet 41a2, and the second chamber 2nd chamber is opened by the second outlet switching damper 44. The inner outlet 41a3 is closed, the second chamber outer outlet 41a4 is opened, and the second blower 42 is driven.
　これにより、第１空調ユニット３０では、図３において破線の矢印で示すように、車室１内の空気が第１空気流通路３１ａの一端から流入し、第１空気流通路３１ａを流通する空気が凝縮器２２において放熱する冷媒と熱交換することによって加熱され、凝縮器２２によって加熱された空気が車室１内に供給される。車室１内は、第１空調ユニット３０から供給される空気によって、設定された温度まで加熱される。 As a result, in the first air conditioning unit 30, as shown by the broken line arrow in FIG. 3, the air in the passenger compartment 1 flows in from one end of the first air flow passage 31a and flows through the first air flow passage 31a. Is heated by exchanging heat with the refrigerant that dissipates heat in the condenser 22, and the air heated by the condenser 22 is supplied into the passenger compartment 1. The inside of the vehicle interior 1 is heated to a set temperature by the air supplied from the first air conditioning unit 30.
　一方、第２空調ユニット４０では、図４において破線の矢印で示すように、車室１外の空気が第２空気流通路４１ａの一端から流入し、第２空気流通路４１ａを流通する空気が蒸発器２４において吸熱する冷媒と熱交換することによって冷却され、蒸発器２４によって冷却された空気が車室１外に排出される。 On the other hand, in the second air conditioning unit 40, as shown by the broken arrow in FIG. 4, the air outside the passenger compartment 1 flows in from one end of the second air flow passage 41a, and the air flowing through the second air flow passage 41a flows. It is cooled by exchanging heat with the refrigerant that absorbs heat in the evaporator 24, and the air cooled by the evaporator 24 is discharged to the outside of the vehicle interior 1.
　また、車両用空気調和装置１０は、車室１内の冷房を行う場合に、第１空調ユニット３０において、第１流入口切替ダンパ３３によって第１室内側流入口３１ａ１を閉鎖して第１室外側流入口３１ａ２を開放し、第１流出口切替ダンパ３４によって第１室内側流出口３１ａ３を閉鎖して第１室外側流出口３１ａ４を開放し、第１送風機３２を駆動させる。また、第２空調ユニット４０では、第２流入口切替ダンパ４３によって第２室外側流入口４１ａ２を閉鎖して第２室内側流入口４１ａ１を開放し、第２流出口切替ダンパ４４によって第２室外側流出口４１ａ４を閉鎖し第２室内側流出口４１ａ３を開放し、第２送風機４２を駆動させる。 Further, in the vehicle air conditioner 10, when cooling the inside of the vehicle compartment 1, the first chamber 1 side inflow port 31a1 is closed by the first inflow inlet switching damper 33 in the first air conditioning unit 30. The outer inlet 31a2 is opened, the first chamber side outlet 31a3 is closed by the first outlet switching damper 34, the first chamber outer outlet 31a4 is opened, and the first blower 32 is driven. Further, in the second air conditioning unit 40, the second chamber outer inlet 41a2 is closed by the second inlet switching damper 43 to open the second chamber side inlet 41a1, and the second chamber 2nd chamber is opened by the second outlet switching damper 44. The outer outlet 41a4 is closed, the second indoor side outlet 41a3 is opened, and the second blower 42 is driven.
　これにより、第１空調ユニット３０では、図３において実線の矢印で示すように、車室１外の空気が第１空気流通路３１ａ一端から流入し、第１空気流通路３１ａを流通する空気が凝縮器２２において放熱する冷媒と熱交換することによって加熱され、凝縮器２２によって加熱された空気が車室１外に排出される。 As a result, in the first air conditioning unit 30, as shown by the solid line arrow in FIG. 3, the air outside the passenger compartment 1 flows in from one end of the first air flow passage 31a, and the air flowing through the first air flow passage 31a flows. It is heated by exchanging heat with the refrigerant that dissipates heat in the condenser 22, and the air heated by the condenser 22 is discharged to the outside of the passenger compartment 1.
　一方、第２空調ユニット４０では、図４において実線の矢印で示すように、車室１内の空気が第２空気流通路４１ａの一端から流入し、第２空気流通路４１ａを流通する空気が蒸発器２４において吸熱する冷媒と熱交換することによって冷却され、蒸発器２４によって冷却された空気が車室１内に供給される。車室１内は、第２空調ユニット４０から供給される空気によって設定された温度まで冷却される。 On the other hand, in the second air conditioning unit 40, as shown by the solid line arrow in FIG. 4, the air in the passenger compartment 1 flows in from one end of the second air flow passage 41a, and the air flowing through the second air flow passage 41a flows. It is cooled by exchanging heat with the refrigerant that absorbs heat in the evaporator 24, and the air cooled by the evaporator 24 is supplied into the vehicle interior 1. The inside of the vehicle interior 1 is cooled to a temperature set by the air supplied from the second air conditioning unit 40.
　このように、本実施形態の温度調節装置としての車両用空気調和装置１０によれば、凝縮器２２及び蒸発器２４は、それぞれ、冷媒が流通する扁平チューブ１１０と、扁平チューブ１１０の両端部に接続される一対のヘッダ１２０と、を有する複数の熱交換ユニット１００を備え、扁平チューブ１１０内を流通する冷媒と扁平チューブ１１０外を流通する空気とを熱交換するものであり、扁平チューブ１１０は、横断面における長手方向を空気の流通方向と平行に設け、一対のヘッダ１２０は、それぞれの長手方向を空気の流通方向と平行に設け、複数の熱交換ユニット１００は、互いに空気の流通方向と直交する方向に積層されている。 As described above, according to the vehicle air conditioner 10 as the temperature control device of the present embodiment, the condenser 22 and the evaporator 24 are attached to the flat tube 110 through which the refrigerant flows and both ends of the flat tube 110, respectively. A plurality of heat exchange units 100 having a pair of headers 120 to be connected are provided, and the refrigerant flowing inside the flat tube 110 and the air flowing outside the flat tube 110 exchange heat with each other. , The longitudinal direction in the cross section is provided parallel to the air flow direction, the pair of headers 120 are provided with their respective longitudinal directions parallel to the air flow direction, and the plurality of heat exchange units 100 are provided with each other in the air flow direction. They are stacked in orthogonal directions.
　これにより、凝縮器２２及び蒸発器２４における冷媒と熱交換する空気の流通方向の外形寸法を大きくすることで熱交換量を増加させることが可能となるので、設置スペースが限られる場合においても、必要な熱交換量を確保することが可能となる。 As a result, the amount of heat exchange can be increased by increasing the external dimensions of the air that exchanges heat with the refrigerant in the condenser 22 and the evaporator 24 in the flow direction. Therefore, even when the installation space is limited, It is possible to secure the required amount of heat exchange.
　また、凝縮器２２及び蒸発器２４は、それぞれ、冷媒と熱交換する空気の流通方向の長さＡが、空気の流通方向に対して直交する方向における２辺の長さＢ，Ｃのうち、少なくとも一方の辺の長さより大きい。 Further, in the condenser 22 and the evaporator 24, of the two side lengths B and C in the direction in which the length A in the flow direction of the air that exchanges heat with the refrigerant is orthogonal to the flow direction of the air, respectively. Greater than the length of at least one side.
　これにより、第１空調ユニット３０及び第２空調ユニット４０において第１空気流通路３１ａ及び第２空気流通路４１ａの断面積を小さくすることが可能となるので、第１空調ユニット３０及び第２空調ユニット４０の幅方向の長さや高さ方向の長さを小さくすることが可能となる。 As a result, in the first air conditioning unit 30 and the second air conditioning unit 40, the cross-sectional areas of the first air flow passage 31a and the second air flow passage 41a can be reduced, so that the first air conditioning unit 30 and the second air conditioning unit 30 and the second air conditioning unit 40 can be reduced in cross-sectional area. It is possible to reduce the length of the unit 40 in the width direction and the length in the height direction.
　また、凝縮器２２を有する第１空調ユニット３０と、蒸発器２４を有する第２空調ユニット４０と、を一体に形成している。 Further, the first air conditioning unit 30 having the condenser 22 and the second air conditioning unit 40 having the evaporator 24 are integrally formed.
　これにより、凝縮器２２を有する第１空調ユニット３０と、蒸発器２４を有する第２空調ユニット４０と、を一部品として取り扱うことが可能となるので、車両に対して車両用空気調和装置１０を設置する作業における作業工数の低減を図ることが可能となる。 As a result, the first air conditioning unit 30 having the condenser 22 and the second air conditioning unit 40 having the evaporator 24 can be handled as one component, so that the vehicle air conditioner 10 can be provided to the vehicle. It is possible to reduce the work man-hours in the installation work.
　また、第１送風機３２及び第２送風機４２は、それぞれ直線状に形成された第１空気流通路３１ａ及び第２空気流通路４１ａにおける凝縮器２２及び蒸発器２４の近傍に設けられている。 Further, the first blower 32 and the second blower 42 are provided in the vicinity of the condenser 22 and the evaporator 24 in the first air flow passage 31a and the second air flow passage 41a formed in a straight line, respectively.
　これにより、直線状に形成された第１空気流通路３１ａに第１送風機３２及び凝縮器２２が配置され、直線状に形成された第２空気流通路４１ａに第２送風機４２及び蒸発器２４が配置されることになるので、第１空調ユニット３０及び第２空調ユニット４０のコンパクト化を図ることが可能となる。 As a result, the first blower 32 and the condenser 22 are arranged in the linearly formed first air flow passage 31a, and the second blower 42 and the evaporator 24 are arranged in the linearly formed second air flow passage 41a. Since they are arranged, it is possible to make the first air conditioning unit 30 and the second air conditioning unit 40 compact.
　図１０乃至図１２は、本発明の他の実施形態を示すものである。 10 to 12 show other embodiments of the present invention.
　本実施形態の車両用空気調和装置１０は、圧縮機２１、凝縮器または蒸発器として機能する第１熱交換器２２´、減圧装置２３、蒸発器または凝縮器として機能する第２熱交換器２４´、圧縮機２１から吐出された冷媒が流通する先を第１熱交換器２２´または第２熱交換器２４´に切り替えるための流路切替部としての四方弁２５が接続された冷媒回路２０´を備えている。 The vehicle air conditioner 10 of the present embodiment includes a compressor 21, a first heat exchanger 22'functioning as a condenser or an evaporator, a decompression device 23, and a second heat exchanger 24 functioning as an evaporator or a condenser. A refrigerant circuit 20 to which a four-way valve 25 as a flow path switching unit for switching the destination of the refrigerant discharged from the compressor 21 to the first heat exchanger 22'or the second heat exchanger 24'is connected. ´ is provided.
　第１熱交換器２２´は、第１空調ユニット３０の第１空気流通路３１ａに設けられ、第２熱交換器２４´は、第２空調ユニット４０の第２空気流通路４１ａに設けられている。第１熱交換器２２´及び第２熱交換器２４´は、それぞれ、前記実施形態における凝縮器２２及び蒸発器２４と同様の構成を有している。 The first heat exchanger 22'is provided in the first air flow passage 31a of the first air conditioning unit 30, and the second heat exchanger 24'is provided in the second air flow passage 41a of the second air conditioning unit 40. There is. The first heat exchanger 22'and the second heat exchanger 24'have the same configurations as the condenser 22 and the evaporator 24 in the above embodiment, respectively.
　また、第１空調ユニット３０は、前記実施形態における第１室外側流入口３１ａ２及び第１室外側流出口３１ａ４を有しておらず、第１空気流通路３１ａの両端が車室１内のみに連通している。第２空調ユニット４０は、前記実施形態における第２室内側流入口４１ａ１及び第２室内側流出口４１ａ３を有しておらず、第２空気流通路４１ａが車室外のみに連通している。さらに、第１空調ユニット３０と第２空調ユニット４０は、それぞれ別体として構成されている。 Further, the first air conditioning unit 30 does not have the first chamber outer inflow port 31a2 and the first chamber outer outflow port 31a4 in the above embodiment, and both ends of the first air flow passage 31a are only in the passenger compartment 1. Communicating. The second air conditioning unit 40 does not have the second indoor side inflow port 41a1 and the second indoor side outflow port 41a3 in the above embodiment, and the second air flow passage 41a communicates only with the outside of the vehicle interior. Further, the first air conditioning unit 30 and the second air conditioning unit 40 are configured as separate bodies.
　以上のように構成された車両用空気調和装置１０は、第１空調ユニット３０が車室１内に空気を供給する専用の室内ユニットとして機能し、第２空調ユニット４０が冷媒回路２０´を流通する冷媒と車室１外の空気とを熱交換させる専用の室外ユニットとして機能する。 In the vehicle air conditioner 10 configured as described above, the first air conditioner unit 30 functions as a dedicated indoor unit for supplying air into the vehicle interior 1, and the second air conditioner unit 40 distributes the refrigerant circuit 20'. It functions as a dedicated outdoor unit that exchanges heat between the refrigerant and the air outside the passenger compartment 1.
　車室１内の暖房を行う場合は、冷媒回路２０´を循環する冷媒の流路を、四方弁２５の流路の切り替えによって、圧縮機２１、第１熱交換器２２´、減圧装置２３、第２熱交換器２４´の順に冷媒が流通する加熱用冷媒流路に設定する。また、車室１内の冷房を行う場合には、冷媒回路２０´を循環する冷媒の流路を、四方弁２５の流路の切り替えによって、圧縮機２１、第２熱交換器２４´、減圧装置２３、第１熱交換器２２´の順に冷媒が流通する冷却用冷媒流路に設定する。さらに、第１空調ユニット３０では第１送風機３２を駆動させ、第２空調ユニット４０では、第２送風機４２を駆動させる。 When heating the inside of the passenger compartment 1, the flow path of the refrigerant circulating in the refrigerant circuit 20'is changed by switching the flow path of the four-way valve 25, so that the compressor 21, the first heat exchanger 22', the decompression device 23, It is set in the heating refrigerant flow path through which the refrigerant flows in the order of the second heat exchanger 24'. Further, when cooling the inside of the vehicle compartment 1, the flow path of the refrigerant circulating in the refrigerant circuit 20'is reduced by switching the flow path of the four-way valve 25 to the compressor 21, the second heat exchanger 24', and the pressure reduction. The device 23 and the first heat exchanger 22'are set in the cooling refrigerant flow path through which the refrigerant flows in this order. Further, the first air conditioning unit 30 drives the first blower 32, and the second air conditioning unit 40 drives the second blower 42.
　これにより、第１空調ユニット３０では、図１１に示すように、車室１内の空気が第１空気流通路３１ａの一端から流入し、第１空気流通路３１ａを流通する空気が第１熱交換器２２´において冷媒と熱交換し、第１熱交換器２２´において冷媒と熱交換した空気が車室１内に供給される。車室１内は、第１空調ユニット３０から供給される空気によって、設定された温度まで加熱または冷却される。 As a result, in the first air conditioning unit 30, as shown in FIG. 11, the air in the vehicle interior 1 flows in from one end of the first air flow passage 31a, and the air flowing through the first air flow passage 31a is the first heat. The air exchanged with the refrigerant in the exchanger 22'and the heat exchanged with the refrigerant in the first heat exchanger 22'is supplied into the passenger compartment 1. The inside of the vehicle interior 1 is heated or cooled to a set temperature by the air supplied from the first air conditioning unit 30.
　一方、第２空調ユニット４０では、図１２に示すように、車室１外の空気が第２空気流通路４１ａの一端から流入し、第２空気流通路４１ａを流通する空気が第２熱交換器２４´において冷媒と熱交換し、蒸発器２４において冷媒と熱交換した空気が車室１外に排出される。 On the other hand, in the second air conditioning unit 40, as shown in FIG. 12, the air outside the passenger compartment 1 flows in from one end of the second air flow passage 41a, and the air flowing through the second air flow passage 41a exchanges second heat. The air exchanged with the refrigerant in the vessel 24'and the heat exchanged with the refrigerant in the evaporator 24 is discharged to the outside of the passenger compartment 1.
　このように、本実施形態の車両用空気調和装置１０によれば、前記実施形態と同様に、第１熱交換器２２´及び第２熱交換器２４´における冷媒と熱交換する空気の流通方向の外形寸法を大きくすることで熱交換量を増加させることが可能となるので、設置スペースが限られる場合においても、必要な熱交換量を確保することが可能となる。 As described above, according to the vehicle air conditioner 10 of the present embodiment, the flow direction of the air that exchanges heat with the refrigerant in the first heat exchanger 22'and the second heat exchanger 24', as in the above embodiment. Since it is possible to increase the amount of heat exchange by increasing the external dimensions of the above, it is possible to secure the required amount of heat exchange even when the installation space is limited.
　また、第１熱交換器２２´を有する第１空調ユニット３０と、第２熱交換器２４´を有する第２空調ユニット４０と、を備えている。 It also includes a first air conditioning unit 30 having a first heat exchanger 22'and a second air conditioning unit 40 having a second heat exchanger 24'.
　これにより、第１熱交換器２２´を有する第１空調ユニット３０と、第２熱交換器２４´を有する第２空調ユニット４０と、をそれぞれ一部品として取り扱うことが可能となるので、車両に対して車両用空気調和装置１０を設置する作業における作業工数の低減を図ることが可能となる。また、第１空調ユニット３０及び第２空調ユニット４０は、それぞれ別々に設置することが可能となるので、車両における車両用空気調和装置１０の設置スペースの状況に応じて自由に配置することが可能となる。 As a result, the first air conditioning unit 30 having the first heat exchanger 22'and the second air conditioning unit 40 having the second heat exchanger 24'can be handled as one component, respectively. On the other hand, it is possible to reduce the work manpower in the work of installing the vehicle air conditioner 10. Further, since the first air conditioning unit 30 and the second air conditioning unit 40 can be installed separately, they can be freely arranged according to the situation of the installation space of the vehicle air conditioner 10 in the vehicle. It becomes.
　また、第１空調ユニット３０は、冷媒と熱交換した空気を車室１内に供給し、第２空調ユニット４０は、冷媒と熱交換した空気を車室１外に排出し、冷媒回路２０´は、第１熱交換器２２´を凝縮器として機能させると共に第２熱交換器２４´を蒸発器として機能させる加熱用冷媒流路と、第２熱交換器２４´を凝縮器として機能させるとともに第１熱交換器２２´を蒸発器として機能させる冷却用冷媒流路と、を切り替える四方弁２５を有している。 Further, the first air conditioning unit 30 supplies air that has exchanged heat with the refrigerant into the passenger compartment 1, and the second air conditioning unit 40 discharges the air that has exchanged heat with the refrigerant to the outside of the passenger compartment 1, and the refrigerant circuit 20' Makes the first heat exchanger 22'function as a condenser and the second heat exchanger 24'function as an evaporator, and the second heat exchanger 24'function as a condenser. It has a four-way valve 25 that switches between a cooling refrigerant flow path that causes the first heat exchanger 22'to function as an evaporator.
　これにより、第１空調ユニット３０を車室１内に配置し、第２空調ユニット４０を車室１外に配置することが可能となるので、車室１内における車両用空気調和装置１０の設置スペースの省スペース化を図ることが可能となる。 As a result, the first air-conditioning unit 30 can be arranged in the vehicle interior 1 and the second air-conditioning unit 40 can be arranged outside the vehicle compartment 1. Therefore, the vehicle air conditioner 10 can be installed in the vehicle compartment 1. It is possible to save space.
　尚、前記実施形態では、本発明の温度調節装置を車両用空気調和装置１０に適用したものを示したが、これに限られるものではない。本発明の温度調節装置は、冷媒と熱交換する空気の流通路の幅方向や高さ方向の大きさに制限がある場合に特に有効であり、例えば、建物の室内の空気調和装置や、冷凍ショーケース及び冷蔵ショーケース等の冷却装置に適用することが可能である。 In the above embodiment, the temperature control device of the present invention is applied to the vehicle air conditioner 10, but the present invention is not limited to this. The temperature control device of the present invention is particularly effective when the size of the air flow path for heat exchange with the refrigerant in the width direction and the height direction is limited. For example, an air conditioner in a building or refrigeration. It can be applied to cooling devices such as showcases and refrigerated showcases.
　また、前記実施形態では、第１空調ユニット３０及び第２空調ユニット４０が、車室１のシート２の下部に配置されているものを示したが、これに限られるものではない。第１空調ユニット３０及び第２空調ユニット４０は、例えば、車室の天井部、ドアトリム、車室内の幅方向中央部のアームレストの下部等に配置してもよい。 Further, in the above-described embodiment, the first air-conditioning unit 30 and the second air-conditioning unit 40 are arranged below the seat 2 of the passenger compartment 1, but the present invention is not limited to this. The first air conditioning unit 30 and the second air conditioning unit 40 may be arranged, for example, on the ceiling of the vehicle interior, the door trim, the lower part of the armrest at the center in the width direction of the vehicle interior, and the like.
　また、前記実施形態では、第１ユニット本体３１に対して凝縮器２２（第１熱交換器２２´）及び第１送風機３２を一体に構成した第１空調ユニット３０と、第２ユニット本体４１に対して蒸発器２４（第２熱交換器２４´）及び第２送風機４２を一体に構成した第２空調ユニット４０と、を示したが、これに限られるものではない。圧縮機２１や減圧装置２３等の他の部品が、第１空調ユニット３０または第２空調ユニット４０に一体に構成されていてもよい。 Further, in the above-described embodiment, the first air conditioning unit 30 in which the condenser 22 (first heat exchanger 22') and the first blower 32 are integrally configured with respect to the first unit main body 31 and the second unit main body 41 On the other hand, the second air conditioning unit 40 in which the evaporator 24 (second heat exchanger 24') and the second blower 42 are integrally formed is shown, but the present invention is not limited to this. Other parts such as the compressor 21 and the decompression device 23 may be integrally configured in the first air conditioning unit 30 or the second air conditioning unit 40.
　また、前記実施形態では、ヘッダを円筒状に形成したものを示したがこれに限られるものではなく、例えば、空気流通方向に延びる半円筒形状や角筒状であってもよい。 Further, in the above-described embodiment, the header is formed in a cylindrical shape, but the present invention is not limited to this, and for example, a semi-cylindrical shape or a square tubular shape extending in the air flow direction may be used.
　また、前記実施形態では、複数の熱交換ユニット１００の互いに隣り合うヘッダ１２０をロウ付けによって接続するようにしたものを示したが、空気流通方向に延びるヘッダであれば、互いに隣り合うヘッダを一体に形成してもよい。 Further, in the above embodiment, the headers 120 adjacent to each other of the plurality of heat exchange units 100 are connected by brazing, but if the headers extend in the air flow direction, the headers adjacent to each other are integrated. May be formed in.
　前記実施形態では、冷媒が、一の熱交換ユニット１００において一方のヘッダ１２０から他方のヘッダ１２０に向かって扁平チューブ１１０を流通し、一の熱交換ユニット１００に対して隣り合う一の熱交換ユニット１００において他方のヘッダ１２０から一方のヘッダ１２０に向かって扁平チューブ１１０を流通することで、複数の熱交換ユニット１００が配置されている方向に蛇行しながら流通するようにしたものを示したが、これに限られるものではない。複数の熱交換ユニット１００が配置されている方向に蛇行するものであれば、冷媒が、隣り合う複数の熱交換ユニット１００において一方のヘッダ１２０から他方のヘッダ１２０に向かって扁平チューブ１１０を流通し、隣り合う複数の熱交換ユニット１００に対して隣り合う複数の熱交換ユニット１００において他方のヘッダ１２０から一方のヘッダ１２０に向かって扁平チューブ１１０を流通するようにしてもよい。 In the above embodiment, the refrigerant flows through the flat tube 110 from one header 120 toward the other header 120 in one heat exchange unit 100, and one heat exchange unit adjacent to one heat exchange unit 100. In 100, the flat tube 110 is circulated from the other header 120 toward the one header 120 so that the flat tubes 110 circulate while meandering in the direction in which the plurality of heat exchange units 100 are arranged. It is not limited to this. If the refrigerant meanders in the direction in which the plurality of heat exchange units 100 are arranged, the refrigerant flows through the flat tube 110 from one header 120 toward the other header 120 in the adjacent heat exchange units 100. The flat tube 110 may be circulated from the other header 120 toward the one header 120 in the plurality of adjacent heat exchange units 100 with respect to the plurality of adjacent heat exchange units 100.
　また、前記実施形態では、第１空調ユニット３０及び第２空調ユニット４０のそれぞれに第１送風機３２及び第２送風機４２を設けたものを示したが、これに限られるものではない。例えば、図１３に示すように、一体に設けられた第１空調ユニット３０及び第２空調ユニット４０において、クロスフローファン等の共通の送風機５０を設けるようにしてもよい。この場合には、１つの送風機５０によって第１空気流通路３１ａ及び第２空気流通路４１ａのそれぞれに空気を流通させることが可能となり、車両用空気調和装置１０を構成する部品点数の低減を図ることが可能となる。 Further, in the above-described embodiment, the first air-conditioning unit 30 and the second air-conditioning unit 40 are provided with the first blower 32 and the second blower 42, respectively, but the present invention is not limited to this. For example, as shown in FIG. 13, a common blower 50 such as a cross flow fan may be provided in the first air conditioning unit 30 and the second air conditioning unit 40 that are integrally provided. In this case, one blower 50 makes it possible to circulate air through each of the first air flow passage 31a and the second air flow passage 41a, thereby reducing the number of parts constituting the vehicle air conditioner 10. It becomes possible.
　また、前記実施形態では、車室内のシートの下部のような高さ方向の大きさが制限される設置スペースに車両用空気調和装置１０を設置する場合について示したが、これに限られるものではない。例えば、隣り合うシートの間に車両用空気調和装置を設置する場合には、幅方向の大きさが制限される設置スペースに車両用空気調和装置を設置してもよい。この場合に、第１空調ユニット３０及び第２空調ユニット４０は、前後方向または上下方向に並べて配置されることになる。これにより、車室内の幅方向の大きさが制限される設置スペースであっても必要な熱交換量を確保することが可能となる。 Further, in the above-described embodiment, the case where the vehicle air conditioner 10 is installed in an installation space where the size in the height direction is limited, such as the lower part of the seat in the vehicle interior, is shown, but the present invention is not limited to this. Absent. For example, when the vehicle air conditioner is installed between adjacent seats, the vehicle air conditioner may be installed in an installation space where the size in the width direction is limited. In this case, the first air conditioning unit 30 and the second air conditioning unit 40 are arranged side by side in the front-rear direction or the up-down direction. As a result, it is possible to secure the required amount of heat exchange even in the installation space where the size in the width direction of the vehicle interior is limited.
　また、前記実施形態では、複数の熱交換ユニット１００を、それぞれ積層することによって凝縮器２２及び蒸発器２４を構成するようにしたものを示したが、これに限られるものではない。例えば、一対のヘッダの一方から他方に向かって冷媒が流通する熱交換ユニットと、他方から一方に向かって冷媒が流通する熱交換ユニットを予め一体に形成し、一体に形成された対をなす熱交換ユニットを複数対積層することによって熱交換器を構成してもよい。この場合には、対を成す熱交換ユニットを一部品として、熱交換器を組付けることが可能となるので、組み付け作業における作業工数の低減を図ることが可能となる。 Further, in the above-described embodiment, a plurality of heat exchange units 100 are laminated to form a condenser 22 and an evaporator 24, but the present invention is not limited to this. For example, a heat exchange unit in which the refrigerant flows from one of the pair of headers to the other and a heat exchange unit in which the refrigerant flows from the other to the other are integrally formed in advance, and the heat forming a pair formed integrally. A heat exchanger may be configured by stacking a plurality of pairs of exchange units. In this case, since the heat exchanger can be assembled by using the paired heat exchange units as one component, it is possible to reduce the work man-hours in the assembling work.
　１…車室、１０…車両用空気調和装置、２０，２０´…冷媒回路、２１…圧縮機、２２…凝縮器、２２´…第１熱交換器、２３…減圧装置、２４…蒸発器、２４´…第２熱交換器、３０…第１空調ユニット、３１ａ…第１空気流通路、３２…第１送風機、４０…第２空調ユニット、４１ａ…第２空気流通路、４２…第２送風機、５０…送風機、１００…熱交換ユニット、１１０…扁平チューブ、１２０…ヘッダ。 1 ... Vehicle room, 10 ... Vehicle air conditioner, 20, 20'... Refrigerant circuit, 21 ... Compressor, 22 ... Condenser, 22'... First heat exchanger, 23 ... Decompression device, 24 ... Evaporator, 24'... 2nd heat exchanger, 30 ... 1st air conditioning unit, 31a ... 1st air flow passage, 32 ... 1st blower, 40 ... 2nd air conditioning unit, 41a ... 2nd air flow passage, 42 ... 2nd blower , 50 ... Blower, 100 ... Heat exchange unit, 110 ... Flat tube, 120 ... Header.

Claims (7)

  1. 　圧縮機、第１熱交換器、減圧装置、第２熱交換器を有する冷媒回路を備え、前記冷媒回路を流通する冷媒と熱交換した空気を所定の空間に供給することで所定の空間の温度を調節する温度調節装置であって、
    　前記第１熱交換器及び前記第２熱交換器は、それぞれ、冷媒が流通する扁平チューブと、前記扁平チューブの両端部に接続される一対のヘッダと、を有する複数の熱交換ユニットを備え、前記扁平チューブの内側を流通する冷媒と前記扁平チューブの外側を流通する空気とを熱交換するものであり、
    　前記扁平チューブは、横断面における長手方向を空気の流通方向と平行に設け、
    　前記一対のヘッダは、それぞれの長手方向を空気の流通方向と平行に設け、
    　前記複数の熱交換ユニットは、互いに空気の流通方向と直交する方向に積層したことを特徴とする
    　温度調節装置。     A refrigerant circuit having a compressor, a first heat exchanger, a decompression device, and a second heat exchanger is provided, and the temperature of a predetermined space is supplied by supplying air heat exchanged with the refrigerant flowing through the refrigerant circuit to a predetermined space. It is a temperature controller that regulates
    The first heat exchanger and the second heat exchanger each include a plurality of heat exchange units having a flat tube through which a refrigerant flows and a pair of headers connected to both ends of the flat tube. It exchanges heat between the refrigerant flowing inside the flat tube and the air flowing outside the flat tube.
    The flat tube is provided with the longitudinal direction in the cross section parallel to the air flow direction.
    The pair of headers are provided with their respective longitudinal directions parallel to the air flow direction.
    A temperature control device characterized in that the plurality of heat exchange units are laminated in a direction orthogonal to the air flow direction.
  2. 　前記第１熱交換器及び前記第２熱交換器は、それぞれ、冷媒と熱交換する空気の流通方向の長さが、空気の流通方向に対して直交する方向における２辺の長さのうち、少なくとも一方の辺の長さより大きい
    　請求項１に記載の温度調節装置。     The first heat exchanger and the second heat exchanger each have a length of two sides in a direction in which the length of the air that exchanges heat with the refrigerant in the flow direction is orthogonal to the air flow direction. The temperature control device according to claim 1, which is larger than the length of at least one side.
  3. 　少なくとも前記第１熱交換器を有する第１空調ユニットと、
    　少なくとも前記第２熱交換器を有する第２空調ユニットと、を備えた
    　請求項１または２に記載の温度調節装置。     With at least the first air conditioning unit having the first heat exchanger,
    The temperature control device according to claim 1 or 2, further comprising a second air conditioning unit having at least the second heat exchanger.
  4. 　前記第１空調ユニット及び前記第２空調ユニットを一体に形成した
    　請求項３に記載の温度調節装置。     The temperature control device according to claim 3, wherein the first air conditioning unit and the second air conditioning unit are integrally formed.
  5. 　前記第１空調ユニットの前記第１熱交換器において冷媒と熱交換する空気を流通させる第１送風機と、
    　前記第２空調ユニットの前記第２熱交換器において冷媒と熱交換する空気を流通させる第２送風機と、を備え、
    　前記第１送風機及び前記第２送風機は、それぞれ冷媒と熱交換する空気が流通する方向と平行に形成された空気流通路における前記第１熱交換器及び前記第２熱交換器の近傍に設けられている
    　請求項３または４に記載の温度調節装置。     A first blower that circulates air that exchanges heat with a refrigerant in the first heat exchanger of the first air conditioning unit.
    The second heat exchanger of the second air conditioning unit includes a second blower that circulates air that exchanges heat with the refrigerant.
    The first blower and the second blower are provided in the vicinity of the first heat exchanger and the second heat exchanger in an air flow passage formed parallel to the direction in which air that exchanges heat with the refrigerant flows. The temperature control device according to claim 3 or 4.
  6. 　前記第１空調ユニットの前記第１熱交換器において冷媒と熱交換する空気を流通させるとともに、前記第２空調ユニットの前記第２熱交換器において冷媒と熱交換する空気を流通させる送風機を備え、
    　前記送風機は、冷媒と熱交換する空気が流通する方向と平行に形成された空気流通路における前記第１熱交換器及び前記第２熱交換器の近傍に設けられている
    　請求項４に記載の温度調節装置。     The first heat exchanger of the first air conditioning unit is provided with a blower that circulates air that exchanges heat with the refrigerant, and the second heat exchanger of the second air conditioning unit is provided with a blower that circulates air that exchanges heat with the refrigerant.
    The fourth aspect of claim 4, wherein the blower is provided in the vicinity of the first heat exchanger and the second heat exchanger in an air flow passage formed parallel to the direction in which air that exchanges heat with the refrigerant flows. Temperature controller.
  7. 　前記第１空調ユニットは、冷媒と熱交換した空気を所定の空間内に供給し、
    　前記第２空調ユニットは、冷媒と熱交換した空気を所定の空間外に排出し、
    　前記冷媒回路は、前記第１熱交換器を凝縮器として機能させると共に前記第２熱交換器を蒸発器として機能させる加熱用冷媒流路と、前記第２熱交換器を凝縮器として機能させるとともに前記第１熱交換器を蒸発器として機能させる冷却用冷媒流路と、を切り替える流路切替部を有している
    　請求項３に記載の温度調節装置。     The first air conditioning unit supplies air that has exchanged heat with the refrigerant into a predetermined space.
    The second air-conditioning unit discharges the air that has exchanged heat with the refrigerant to the outside of a predetermined space.
    The refrigerant circuit has a heating refrigerant flow path that causes the first heat exchanger to function as a condenser and the second heat exchanger to function as an evaporator, and the second heat exchanger to function as a condenser. The temperature control device according to claim 3, further comprising a flow path switching unit for switching between a cooling refrigerant flow path that causes the first heat exchanger to function as an evaporator.
PCT/JP2020/010778 2019-03-18 2020-03-12 Temperature adjusting device WO2020189488A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10324141A (en) * 1997-05-27 1998-12-08 Denso Corp Vehicular air conditioner
JP2007139278A (en) * 2005-11-16 2007-06-07 Sanden Corp Heat exchanger, and cold instrument using it
JP2011230655A (en) * 2010-04-28 2011-11-17 Sanden Corp Vehicle interior heat exchanger
JP2013193668A (en) * 2012-03-22 2013-09-30 Panasonic Corp Air conditioner for vehicle
JP2016145015A (en) * 2015-02-09 2016-08-12 株式会社デンソー Seat air-conditioner
US20170217278A1 (en) * 2014-10-24 2017-08-03 Hanon Systems Air conditioning system for conditioning air in automobile passenger compartment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10324141A (en) * 1997-05-27 1998-12-08 Denso Corp Vehicular air conditioner
JP2007139278A (en) * 2005-11-16 2007-06-07 Sanden Corp Heat exchanger, and cold instrument using it
JP2011230655A (en) * 2010-04-28 2011-11-17 Sanden Corp Vehicle interior heat exchanger
JP2013193668A (en) * 2012-03-22 2013-09-30 Panasonic Corp Air conditioner for vehicle
US20170217278A1 (en) * 2014-10-24 2017-08-03 Hanon Systems Air conditioning system for conditioning air in automobile passenger compartment
JP2016145015A (en) * 2015-02-09 2016-08-12 株式会社デンソー Seat air-conditioner

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