WO2014196338A1 - Combined heat exchanger - Google Patents

Combined heat exchanger Download PDF

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Publication number
WO2014196338A1
WO2014196338A1 PCT/JP2014/063063 JP2014063063W WO2014196338A1 WO 2014196338 A1 WO2014196338 A1 WO 2014196338A1 JP 2014063063 W JP2014063063 W JP 2014063063W WO 2014196338 A1 WO2014196338 A1 WO 2014196338A1
Authority
WO
WIPO (PCT)
Prior art keywords
tank
heat exchanger
refrigerant
air
radiator
Prior art date
Application number
PCT/JP2014/063063
Other languages
French (fr)
Japanese (ja)
Inventor
直也 辻本
松平　範光
浩布 河上
Original Assignee
カルソニックカンセイ株式会社
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
Priority claimed from JP2013120491A external-priority patent/JP5807660B2/en
Priority claimed from JP2013121477A external-priority patent/JP2014238233A/en
Application filed by カルソニックカンセイ株式会社 filed Critical カルソニックカンセイ株式会社
Publication of WO2014196338A1 publication Critical patent/WO2014196338A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0452—Combination of units extending one behind the other with units extending one beside or one above the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/067—Details
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0084—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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0091—Radiators
    • F28D2021/0094—Radiators for recooling the engine coolant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/14—Fastening; Joining by using form fitting connection, e.g. with tongue and groove

Definitions

  • the present invention relates to, for example, a composite heat exchanger mounted on a vehicle, and more particularly to a composite heat exchanger with improved layout.
  • a first heat exchanger that exchanges heat between cooling water (first refrigerant) that cools the engine and cooling air
  • a high-powered device electric
  • a second heat exchanger that exchanges heat between cooling water (second refrigerant) and cooling air that cools a drive source and an on-vehicle electric device such as an inverter, an air conditioning refrigerant (third refrigerant), and cooling air
  • a third heat exchanger that exchanges heat between the two (for example, see Patent Document 1).
  • each heat exchanger is individually attached to the vehicle, so that the arrangement space (mounting space) is widened and the mounting structure is complicated.
  • the present invention has been made to solve the above-described inconveniences, improves the layout, can reduce the arrangement space (mounting space), and can be easily attached to the vehicle body.
  • a combined heat exchanger is provided.
  • the composite heat exchanger of the present invention includes a first heat exchanger that exchanges heat between the first refrigerant and cooling air, a second heat exchanger that exchanges heat between the second refrigerant and cooling air, And a third heat exchanger that exchanges heat between the third refrigerant and the cooling air, wherein the second heat exchanger and the third heat exchanger are moved up and down on substantially the same plane.
  • the combined heat exchanger arranged and connected to the first heat exchanger is disposed upstream of the cooling air with respect to the first heat exchanger and is integrally attached to the first heat exchanger. It is.
  • the first heat exchanger has a first core part, and a first upper tank and a first lower tank respectively disposed on the upper side and the lower side of the first core part.
  • the second heat exchanger has a second core part, a second left tank and a second right tank respectively disposed on the left and right sides of the second core part, and the third heat exchanger 3 core portions, and a third left tank and a third right tank disposed on the left and right sides of the third core portion, respectively, and the connected heat exchanger is one of the first upper tank or the first lower tank.
  • the second left tank and the second right tank are attached, and the third left tank and the third right tank are attached to the other of the first upper tank or the first lower tank. It may be characterized by being attached.
  • the engaged portion is provided in each of the first upper tank and the first lower tank, and the engaged portion is provided in each of the second left tank and the second right tank.
  • a corresponding second engagement portion is provided, and a third engagement portion corresponding to the engaged portion is provided in each of the third left tank and the third right tank, and the second engagement portion and the third engagement are provided.
  • the connected heat exchanger may be attached to the first heat exchanger by engaging the portion with the engaged portion.
  • the first upper tank and the first lower tank are made of resin, and the engaged portion is integrally formed with the first upper tank and the first lower tank. It may be a feature.
  • the second left tank and the second right tank are made of resin, and the second engagement portion is integrally formed with the second left tank and the second right tank. It may be.
  • the composite heat exchanger according to the present invention is characterized in that the second refrigerant inlet portion of the second heat exchanger and the third refrigerant inlet portion of the third heat exchanger are arranged on the same left and right sides. It may be what you do.
  • the first heat exchanger has a first core part, and a first left tank and a first right tank respectively disposed on the left side and the right side of the first core part
  • the second heat exchanger has a second core part, a second left tank and a second right tank respectively disposed on the left and right sides of the second core part
  • the third heat exchanger has a third core And a third left tank and a third right tank disposed on the left and right sides of the third core part, respectively
  • the connected heat exchanger has a second left tank and a third left tank in the first left tank.
  • the second right tank and the third right tank are attached to the first right tank, thereby being attached to the first heat exchanger.
  • each of the first left tank and the first right tank is provided with an engaged portion, and each of the second left tank and the second right tank corresponds to the engaged portion.
  • a second engaging portion is provided, and each of the third left tank and the third right tank is provided with a third engaging portion corresponding to the engaged portion, and the second engaging portion and the third engaging portion.
  • the coupled heat exchanger may be attached to the first heat exchanger by engaging the engaged portion with the engaged portion.
  • the composite heat exchanger of the present invention is characterized in that the first left tank and the first right tank are made of resin, and the engaged portion is integrally formed with the first left tank and the first right tank. It may be what you do.
  • the second left tank and the second right tank are made of resin, and the second engagement portion is integrally formed with the second left tank and the second right tank. It may be.
  • the composite heat exchanger according to the present invention is characterized in that the first refrigerant inlet portion of the first heat exchanger and the second refrigerant inlet portion of the second heat exchanger are arranged on the same left and right sides. It may be what you do.
  • the composite heat exchanger of the present invention is characterized in that the first refrigerant inlet portion of the first heat exchanger and the third refrigerant inlet portion of the third heat exchanger are arranged on the same left and right sides. It may be what you do.
  • a fourth heat exchanger is provided in the second left tank or the second right tank, and the fourth heat exchanger includes the second refrigerant before flowing into the second core portion.
  • the third refrigerant that exchanges heat with the third refrigerant and flows out of the fourth heat exchanger may flow into the third heat exchanger.
  • FIG. 1 is a perspective view showing a composite heat exchanger according to the first embodiment.
  • FIG. 2 is a perspective view showing the sub-radiator and the air-cooled condenser before connection.
  • FIG. 3 is a perspective view showing the coupled heat exchanger and the main radiator.
  • FIG. 4 is a back view of the main radiator as viewed from the downstream side of the cooling air.
  • FIG. 5 is an explanatory diagram for attaching the coupled heat exchanger to the main radiator.
  • FIG. 6 is a perspective view showing a coupled heat exchanger and a main radiator of the composite heat exchanger according to the second embodiment.
  • FIG. 7 is a perspective view showing a coupled heat exchanger and a main radiator of the composite heat exchanger according to the third embodiment.
  • FIG. 8 is a perspective view showing a coupled heat exchanger and a main radiator of the composite heat exchanger according to the fourth embodiment.
  • FIG. 9 is a configuration diagram of a vehicle heat exchange system to which the composite heat exchanger of the present invention is applied.
  • a vehicle heat exchange system 1 to which the composite heat exchanger of the present invention is applied includes a main radiator 11 (first heat exchanger), a sub-radiator 21 (second heat exchanger), The air-cooled condenser 31 (third heat exchanger) and the water-cooled condenser 41 (fourth heat exchanger) are provided.
  • the cooling air passes through the main radiator 11, the sub radiator 21, and the air cooling condenser 31. Due to the passage of the cooling air, the refrigerant flowing through each of the main radiator 11, the sub radiator 21, and the air cooling condenser 31 is cooled by heat exchange.
  • the main radiator 11 is arranged on the downstream side of the cooling air with respect to the sub radiator 21 and the air cooling condenser 31 and is arranged on the upstream side of the cooling air with respect to the motor fan 2.
  • the main radiator 11 cools the cooling water (first refrigerant) for cooling the engine 3 by heat exchange with cooling air.
  • the cooling water that cools the engine 3 is circulated by the pump 4.
  • the sub-radiator 21 is disposed upstream of the cooling air with respect to the main radiator 11.
  • the sub-radiator 21 cools cooling water (second refrigerant) that cools the high-powered equipment 5 (on-vehicle electrical equipment such as an electric drive source and an inverter) by heat exchange with cooling air.
  • second refrigerant second refrigerant
  • the high-powered equipment 5 on-vehicle electrical equipment such as an electric drive source and an inverter
  • the sub-radiator 21 does not necessarily need to cool the cooling water that cools the high-voltage equipment 5, and may cool the cooling water (second refrigerant) that cools the water-cooled charge air cooler (water-cooled CAC).
  • the cooling water that cools the high-voltage equipment 5 is circulated by the pump 6.
  • the air-cooled condenser 31 is arranged on the upstream side of the cooling air with respect to the main radiator 11.
  • the air-cooling condenser 31 cools the air-conditioning refrigerant (third refrigerant) by heat exchange with cooling air.
  • the water-cooled condenser 41 cools the air-conditioning refrigerant (third refrigerant) by heat exchange with the cooling water (second refrigerant) flowing through the high-voltage equipment 5.
  • the air-cooled condenser 31 and the water-cooled condenser 41 are connected in series in the refrigeration cycle, and the water-cooled condenser 41 is connected to the upstream side of the air-cooled condenser 31 in the refrigeration cycle.
  • the air-conditioning refrigerant (third refrigerant) that has been made high temperature and high pressure by the compressor (compressor) of the refrigeration cycle first flows into the water-cooled condenser 41 and is cooled by the water-cooled condenser 41, and then flows into the air-cooled condenser 31. Then, it is cooled by the air cooling condenser 31.
  • the air-conditioning refrigerant (third refrigerant) cooled by the air-cooled condenser 31 and the water-cooled condenser 41 flows out to the evaporator.
  • the main radiator 11 includes a horizontally-long rectangular core portion 12 (first core portion), an upper tank 13 (first upper tank) provided above and below the core portion 12, and It is comprised by the lower side tank 14 (1st lower side tank).
  • the upper tank 13 (first upper tank) is made of resin, and the upper tank 13 includes a plurality of locking claws 13a (engaged portions), a refrigerant inlet portion 13b (first refrigerant inlet portion), a plate-like shape.
  • An air guide 13c is provided by integral molding.
  • the plurality of locking claws 13a are provided, for example, on the left and right sides of the upstream side (windward side, front side) of the upper tank 13, and the refrigerant inlet portion 13b is located on the downstream side (downstream side, rear side) of the upper tank 13.
  • the plate-like air guide 13 c is located upstream of the upper tank 13 and extends upward (upward), and extends in the left-right direction of the upper tank 13. Yes.
  • the lower tank 14 (first lower tank) is made of resin, and the lower tank 14 includes a plurality of locking pieces 14a (engaged portions) having locking holes, and a refrigerant outlet portion 14b (first portion).
  • a refrigerant outlet portion (see FIG. 4) and a plate-like air guide 14c are provided by integral molding.
  • the plurality of locking pieces 14a are provided, for example, on the left and right sides of the upstream side of the lower tank 14, and the refrigerant outlet portion 14b is provided so as to protrude to the downstream side of the lower tank 14,
  • the plate-like air guide 14 c extends to the upstream side of the lower tank 14 and extends in the left-right direction of the lower tank 14.
  • plate-like air guides 15a and 15b extending in the up-down direction and extending toward the connected heat exchanger B described later are provided.
  • the plate-like air guides 13c, 14c, 15a, and 15b can effectively guide the cooling air from the opening on the front of the vehicle to the main radiator 11 without going through the connection heat exchanger B described later.
  • the first refrigerant flowing from the refrigerant inlet portion 13b of the upper tank 13 flows through the upper tank 13, the core portion 12, and the lower tank 14 in this order, and then flows out from the refrigerant outlet portion 14b.
  • the first refrigerant flows through the main radiator 11 when the first refrigerant flows through the core portion 12, heat exchange is performed between the first refrigerant and the cooling air.
  • the sub-radiator 21 includes a horizontally-long rectangular core portion 22 (second core portion), a left tank 23 (second left tank) provided on the left and right sides of the core portion 22, and It is comprised with the right side tank 24 (2nd right side tank).
  • the left tank 23 is made of resin.
  • the left tank 23 includes an engagement claw 23a (second engagement portion) that engages with a left engagement claw 13a of the upper tank 13 of the main radiator 11, and a refrigerant inlet portion 23b.
  • a connection bracket 23c having a mounting hole 23d extending downward from the lower end of the left tank 23 is provided by integral molding.
  • the refrigerant inlet 23b is provided on, for example, the upper end of the left tank 23 or the side surface of the left tank 23 on the side facing the core portion 22 (the left side surface of the left tank 23).
  • the right tank 24 is made of resin.
  • the right tank 24 includes an engagement claw 24a (second engagement portion) that engages with a right engagement claw 13a of the upper tank 13 of the main radiator 11, and a refrigerant outlet portion 24b. (Second refrigerant outlet portion)
  • a connection bracket 24c having a mounting hole 24d extending downward from the lower end of the right tank 24 is integrally formed.
  • the refrigerant outlet portion 24b is provided, for example, on the upper end of the right tank 24 or on the side surface of the right tank 24 facing the core portion 22 (the right side surface of the right tank 24).
  • a water-cooled condenser 41 is accommodated in the left tank 23 in the left tank 23, a water-cooled condenser 41 is accommodated.
  • the second refrigerant flowing from the refrigerant inlet 23b of the left tank 23 flows through the left tank 23, the core 22 and the right tank 24 in this order, and then flows out from the refrigerant outlet 24b.
  • the second refrigerant flows through the sub-radiator 21 when the second refrigerant flows through the core portion 22, heat exchange is performed between the second refrigerant and the cooling air.
  • the cooling water (second refrigerant) of the sub-radiator 21 may flow in a direction opposite to the above direction.
  • the cooling water (second refrigerant) of the sub-radiator 21 may flow in from the refrigerant outlet portion 24b, exchange heat in the core portion 22, and then flow out of the refrigerant inlet portion 23b.
  • the water-cooled condenser 41 is cooled by the cooling water after being cooled by the core portion 22 of the sub-radiator 21.
  • the refrigerant inlet portion of the water-cooled condenser 41 for the third refrigerant to flow can be provided at the upper end or the side surface of the left tank 23, and similarly, the water-cooled condenser 41 for the third refrigerant to flow out.
  • the refrigerant outlet portion can be provided on the side surface or the lower end of the left tank 23.
  • the air-cooled condenser 31 includes a horizontally-long rectangular core portion 32 (third core portion) and inflow / outflow tanks 33 (left tank, third left tank) provided on the left and right sides of the core portion 32. ), An outflow / inflow tank 34 (right tank, third right tank).
  • the core part 32 is vertically divided into an upper core part 32a and a lower core part 32b.
  • the inflow / outflow tank 33 is divided vertically.
  • the inflow / outflow tank 33 includes an inflow portion 33a (third refrigerant inlet portion) located on the upper side corresponding to the upper core portion 32a, and an outflow portion 33b (third portion) located on the lower side corresponding to the lower core portion 32b. Refrigerant outlet portion).
  • the air-conditioning refrigerant (third refrigerant) flows from the outside of the air-cooling condenser 31 into the upper core section 32a through the inflow section 33a, and from the lower core section 32b through the outflow section 33b. Out to the outside.
  • an engagement piece 33c (third engagement portion) is provided in a bracket manner.
  • the engaging piece 33 c engages with the locking piece 14 a on the left side of the lower tank 14 of the main radiator 11.
  • connection is made by tightening a screw or the like passed through a mounting hole 23 d provided in the connection bracket 23 c provided in the left tank 23 of the sub-radiator 21 to the inflow / outflow tank 33.
  • the bracket 23 c is fixed to the inflow / outflow tank 33.
  • connection brackets 23 c are provided on both the windward side and the leeward side of the left tank 23 of the sub-radiator 21,
  • the inflow / outflow tank 33 may be disposed so as to be sandwiched by the plurality of connection brackets 23 c from both the windward side and the leeward side of the tank 33, and screws or the like passing through the mounting holes 23 d may be crimped to the inflow / outflow tank 33.
  • the outflow / inflow tank 34 is divided into upper and lower portions.
  • the outflow / inflow tank 34 has an outflow portion 34a located on the upper side corresponding to the upper core portion 32a, and an inflow portion 34b located on the lower side corresponding to the lower core portion 32b.
  • the refrigerant outflow side and the inflow side are switched up and down. That is, the air-conditioning refrigerant (third refrigerant) flows out from the upper core portion 32a via the outflow portion 34a to the liquid tank 61 described later, and from the liquid tank 61 described later via the inflow portion 34b to the lower core. It flows into the part 32b.
  • an engagement piece 34c (third engagement part) is provided in a bracket manner.
  • the engagement piece 34 c engages with the right engagement piece 14 a of the lower tank 14 of the main radiator 11.
  • connection is made by tightening a screw or the like passed through the mounting hole 24d provided in the connection bracket 24c provided in the right tank 24 of the sub-radiator 21 to the outflow / inflow tank 34.
  • the bracket 24 c is fixed to the outflow / inflow tank 34.
  • a plurality of connecting brackets 24c are provided on both the upwind side and the leeward side of the right tank 24 of the sub-radiator 21, so The outflow / inflow tank 34 may be sandwiched between the plurality of connection brackets 24 c from both the windward side and the leeward side of the tank 34, and a screw or the like passing through the mounting hole 24 d may be crimped to the outflow / inflow tank 34.
  • the outflow / inflow tank 34 is connected to a liquid tank 61 (see FIG. 3) for gas-liquid separation of the refrigerant. More specifically, the liquid tank 61 passes through the liquid tank 61 and then flows into the inflow part 34b of the outflow inflow tank 34 so that the refrigerant that has flowed out of the outflow part 34a of the outflow inflow tank 34 flows into the outflow part 34a. And the inflow portion 34b are connected on the refrigerant path.
  • liquid tank 61 is attached and fixed to the connection bracket 24c of the sub radiator 21, it may be attached to and fixed to the outflow / inflow tank 34 of the air cooling condenser 31.
  • the third refrigerant that has passed through the water-cooled condenser 41 flows to the liquid tank 61 through the inflow portion 33 a of the inflow / outflow tank 33, the upper core portion 32 a, and the outflow portion 34 a of the outflow / inflow tank 34. .
  • the third refrigerant flows out of the air-cooled condenser 31 via the inflow portion 34b of the outflow / inflow tank 34, the lower core portion 32b, and the outflow portion 33b of the inflow / outflow tank 33.
  • heat exchange is performed between the third refrigerant and the cooling air.
  • the sub-radiator 21 is positioned on the upper side on the same plane in the vertical direction, and the air-cooling condenser 31 is positioned on the lower side.
  • the sub-radiator 21 and the air-cooled condenser 31 are connected using the mounting holes 23d and 24d of the connection brackets 23c and 24c, bolts, and the like.
  • the inflow / outflow tank 33 and the outflow / inflow tank 34 of the air-cooled condenser 31 are fixed by caulking from either the upstream side or the downstream side, or by caulking from both the upstream side and the downstream side.
  • other fixing methods such as fitting, adhesion, and welding may be used instead of caulking.
  • the water-cooled condenser 41 and the inflow portion 33 a of the air-cooled condenser 31 are connected by a pipe 51.
  • the sub radiator 21 and the air-cooled condenser 31 may be further fixed by connecting the pipe 51.
  • the sub-radiator 21 (second heat exchanger) and the air-cooled condenser 31 (third heat exchanger), which are arranged vertically and connected on substantially the same plane, are referred to as a connected heat exchanger B.
  • the coupled heat exchanger B is positioned on the upstream side of the cooling air with respect to the main radiator 11 (first heat exchanger), and the engaging piece 33c is engaged with the left locking piece 14a.
  • the engaging piece 34c is engaged with the right engaging piece 14a
  • the engaging claw 23a is engaged with the left engaging claw 13a
  • the engaging claw 24a is engaged with the right engaging claw 13a.
  • the coupled heat exchanger B (the sub radiator 21 and the air cooling condenser 31) is integrally attached to the main radiator 11.
  • the composite heat exchanger A assembled in this way is attached to the vehicle body using, for example, a mounting bracket provided on the main radiator 11 (not shown).
  • connection heat exchanger B composed of the sub-radiator 21 and the air-cooled condenser 31 is integrally attached to the main radiator 11, so that the layout is improved and the arrangement space (installation space) is improved. ) Can be made small, and can be easily attached to the vehicle body.
  • the left tank 23 (second left tank) and the right tank 24 (second right tank) of the sub radiator 21 (second heat exchanger) are connected to the upper tank 13 (first upper tank) of the main radiator 11 (first heat exchanger).
  • the inflow / outflow tank 33 (third left tank) and the outflow / inflow tank 34 (third right tank) of the air cooling condenser 31 (third heat exchanger) are connected to the lower tank 14 (first lower tank) of the main radiator 11.
  • the connected heat exchanger B is attached to the main radiator 11 by being attached to the side tank. That is, since the sub-radiator 21 and the air-cooled condenser 31 are integrally attached to the main radiator 11, the layout is improved, the arrangement space (attachment space) can be reduced, and the attachment to the vehicle body is easy. It can be carried out.
  • Engagement claws 23a, 24a (second engagement part) of the sub-radiator 21 and engagement pieces 33c, 34c (third engagement part) of the air cooling condenser 31 are provided in the main radiator 11 (first heat exchanger). Since the coupled heat exchanger B can be attached to the main radiator 11 by engaging with the latching claws 13a and the latching pieces 14a that are the engaged parts, the coupled heat exchanger B to the main radiator 11 can be attached. Installation can be performed easily.
  • the upper tank 13 of the main radiator 11 is made of resin and the locking claw 13a and the air guide 13c are integrally formed with the upper tank 13, the upper tank 13, the locking claw 13a and the air guide 13c can be molded at a time. At the same time, it is not necessary to separately manufacture the locking claw 13a and the air guide 13c, or separately attach to the upper tank 13, thereby simplifying the manufacturing process.
  • the lower tank 14 of the main radiator 11 is made of resin and the locking piece 14a and the air guide 14c are integrally formed with the lower tank 14, the lower tank 14, the locking piece 14a and the air guide 14c are formed at a time. In addition to being able to be molded, it is not necessary to separately manufacture the locking piece 14a and the air guide 14c, or separately attach to the lower tank 14, thereby simplifying the manufacturing process.
  • the integral molding of the upper tank 13, the locking claw 13a, and the air guide 13c may be performed simultaneously with the integral molding of the lower tank 14, the locking piece 14a, and the air guide 14c. At the same time as the integral molding, the assembly of the upper tank 13 and the lower tank 14 to the core portion 12 may be completed.
  • the left tank 23 (second left tank) of the sub-radiator 21 is made of resin, and the engaging claw 23a (second engaging portion) and the connecting bracket 23c are integrally formed with the left tank 23, the left tank 23,
  • the joint claw 23a and the connection bracket 23c can be molded at a time, and the manufacturing process is simplified by eliminating the need to separately manufacture the engagement claw 23a and the connection bracket 23c or separately attach them to the left tank 23.
  • the right tank 24 (second right tank) of the sub-radiator 21 is made of resin, and the engaging claw 24a (second engaging portion) and the connecting bracket 24c are integrally formed with the right tank 24, the right tank 24,
  • the joint claw 24a and the connection bracket 24c can be molded at a time, and the manufacturing process is simplified by eliminating the need to separately manufacture the engagement claw 24a and the connection bracket 24c or separately attaching them to the right tank 24.
  • the integral formation of the left tank 23, the engagement claw 23a, and the connection bracket 23c may be performed simultaneously with the integral formation of the right tank 24, the engagement claw 24a, and the connection bracket 24c. At the same time as the integral molding, the assembly of the left tank 23 and the right tank 24 to the core portion 22 may be completed.
  • the water-cooled condenser 41 By providing the water-cooled condenser 41 in the left tank 23 of the sub-radiator 21, between the second refrigerant flowing in the left tank 23 (before entering the core portion 22) and the third refrigerant flowing in the water-cooled condenser 41.
  • the third refrigerant flows through the air-cooled condenser 31 after being cooled by the water-cooled condenser 41. Since the third refrigerant flowing into the air-cooled condenser 31 from the water-cooled condenser 41 is already cooled by the second refrigerant, the third refrigerant can be efficiently cooled by the air-cooled condenser 31.
  • the refrigerant inlet 23b (second refrigerant inlet) of the sub-radiator 21 (second heat exchanger), the inflow / outflow tank 33 and the inlet 33a (third refrigerant inlet) of the air cooling condenser 31 (third heat exchanger), are arranged on the same side in the left-right direction, and the flow direction of the refrigerant in the sub-radiator 21 and the flow direction of the refrigerant in the upper core portion 32a that is a part of the air-cooling condenser 31 adjacent to the sub-radiator 21 are Since the directions are the same, the thermal effect between the sub-radiator 21 and the air-cooled condenser 31 can be minimized.
  • the air guides 13c, 14c, 15a, and 15b are provided in the main radiator 11, the cooling air can be efficiently guided to the main radiator 11 and the refrigerant can be efficiently cooled by the main radiator 11 and the like.
  • the sub-radiator 21 has a left tank 25 instead of the left tank 23 of the composite heat exchanger A of the first embodiment. is doing.
  • the composite heat exchanger A of the second embodiment is different from the composite heat exchanger A of the first embodiment.
  • the sub-radiator 21 includes a horizontally long core portion 22 (second core portion), a left tank 25 (second left tank) and a right tank 24 (second right tank) provided on the left and right sides of the core portion 22. It consists of and. Although the water-cooled condenser 41 is accommodated in the left tank 23 of the composite heat exchanger A of the first embodiment, the water-cooled condenser is not accommodated in the left tank 25.
  • the left tank 25 is made of resin.
  • the left tank 25 includes an engagement claw 25a (second engagement portion) that engages with a left engagement claw 13a of the upper tank 13 of the main radiator 11, and a refrigerant inlet portion 25b.
  • a connection bracket 25c having a mounting hole (not shown) extending downward from the lower end of the left tank 25 is integrally formed.
  • the refrigerant inlet 25b is provided on, for example, the upper end of the left tank 25 or the side surface of the left tank 25 facing the core portion 22 (the left side surface of the left tank 25).
  • the main radiator 11 and the air cooling condenser 31 are configured in the same manner as the main radiator 11 and the air cooling condenser 31 of the first embodiment.
  • the coupled heat exchanger B can be assembled as in the case of the first embodiment, and the combined heat exchanger A can be formed by attaching the coupled heat exchanger B to the main radiator 11.
  • the composite heat exchanger A of the third embodiment is different from the composite heat exchanger A of the first embodiment in that the main radiator 11 (first heat exchanger) is a horizontally long rectangle.
  • the core portion 12 (first core portion) that has been formed, and a left tank 16 (first left tank) and a right tank 17 (first right tank) provided on the left and right sides of the core portion 12 are configured. .
  • the left tank 16 is made of resin, and the left tank 16 (first left tank) has a locking claw 16a (an engaged portion), a refrigerant inlet portion 16b (a first refrigerant inlet portion), and a locking hole.
  • a locking piece 16c (a portion to be engaged) and an air guide 16d are provided by integral molding.
  • the locking claw 16a and the locking piece 16c are provided on the upstream side of the cooling air with respect to the left tank 16 (first left tank).
  • the locking claw 16 a is provided on the upper side of the left tank 16, while the locking piece 16 c is provided on the lower side of the left tank 16.
  • the refrigerant inlet 16b is provided so as to protrude to the downstream side of the cooling air with respect to the left tank 16.
  • the refrigerant inlet portion 16 b may be provided so as to protrude to the side surface of the left tank 16.
  • the plate-shaped air guide 16d is provided on the upstream side of the left tank 16 and extends in the vertical direction.
  • the right tank 17 is made of resin.
  • the right tank 17 includes a locking claw 17a (engaged portion), a refrigerant outlet portion 17b (first refrigerant outlet portion), and a locking piece 17c (covered) having a locking hole. Engaging portion) and an air guide 17d are integrally formed.
  • the locking claw 17a and the locking piece 17c are provided on the upstream side of the cooling air with respect to the right tank 17.
  • the locking claw 17 a is provided on the upper side of the right tank 17, while the locking piece 17 c is provided on the lower side of the right tank 17.
  • the refrigerant outlet portion 17b is provided so as to protrude to the downstream side of the cooling air with respect to the right tank 17.
  • the refrigerant outlet portion 17 b may be provided so as to protrude to the side surface of the right tank 17.
  • the plate-shaped air guide 17d is provided on the upstream side of the right tank 17 and extends in the vertical direction.
  • a plate-like air guide 18a that extends upward at the upper end of the core portion 12 and extends in the left-right direction, and extends upstream (windward, forward) and at the lower end of the core portion 12 in the left-right direction.
  • a plate-shaped air guide 18b is provided.
  • the air guides 16d and 17d extend toward the side where the coupled heat exchanger B is disposed, and the width (length in the vertical direction) of the air guides 16d and 17d is greater than the width of the coupled heat exchanger B. The larger one is desirable.
  • the first refrigerant flowing from the refrigerant inlet 16b of the left tank 16 flows through the left tank 16, the core 12, and the right tank 17 in this order, and then flows out from the refrigerant outlet 17b.
  • the first refrigerant flows through the main radiator 11 when the first refrigerant flows through the core portion 12, heat exchange is performed between the first refrigerant and the cooling air.
  • the sub-radiator 21, the air-cooled condenser 31, the water-cooled condenser 41, and the coupled heat exchanger B are configured and arranged in the same manner as in the first embodiment.
  • the coupled heat exchanger B can be assembled as in the case of the first embodiment, and the combined heat exchanger A can be formed by attaching the coupled heat exchanger B to the main radiator 11.
  • the left tank 23 (second left tank) and the right tank 24 (second right tank) of the sub-radiator 21 (second heat exchanger) are respectively connected to the main radiator 11 (first heat exchange).
  • the connected heat exchanger B is attached to the main radiator 11 by attaching the tank 34 (third right tank) to the left tank 16 and the right tank 17 of the main radiator 11, respectively. That is, since the sub-radiator 21 and the air-cooled condenser 31 are integrally attached to the main radiator 11, the layout is improved, the arrangement space (attachment space) can be reduced, and the attachment to the vehicle body is easy. It can be carried out.
  • the engaging claws 23a, 24a (second engaging portion) of the sub radiator 21 (second heat exchanger) and the engaging pieces 33c, 34c (third engaging portion) of the air cooling condenser 31 (third heat exchanger) are connected.
  • the coupled heat exchanger B is connected to the main radiator 11 by engaging the engaging claws 16a and 17a and the engaging pieces 16c and 17c which are engaged portions provided in the main radiator 11 (first heat exchanger). Since it can attach, the attachment of the connection heat exchanger B to the main radiator 11 can be performed easily.
  • the engaging claw 16a, the engaging piece 16c, and the air guide 16d which are engaged parts, are integrally formed in the left tank 16,
  • the left tank 16, the locking claw 16 a, the locking piece 16 c and the air guide 16 d can be molded at once, and the locking claw 16 a, the locking piece 16 c and the air guide 16 d can be separately manufactured or separately attached to the left tank 16. The manufacturing process is simplified.
  • the right tank 17 (first right tank) of the main radiator 11 is made of resin
  • the engaging claw 17a, the engaging piece 17c, and the air guide 17d, which are engaged parts are integrally formed in the right tank 17,
  • the right tank 17, the locking claw 17a, the locking piece 17c, and the air guide 17d can be molded at once, and the locking claw 17a, the locking piece 17c, and the air guide 17d are separately manufactured or separately attached to the right tank 17.
  • the manufacturing process is simplified.
  • Integral molding of the left tank 16, the locking claw 16a, the locking piece 16c, and the air guide 16d may be performed simultaneously with the integral molding of the right tank 17, the locking claw 17a, the locking piece 17c, and the air guide 17d. At the same time as the integral molding, the assembly of the left tank 16 and the right tank 17 to the core portion 12 may be completed.
  • the left tank 23 (second left tank) of the sub-radiator 21 is made of resin, and the engaging claw 23a (second engaging portion) and the connecting bracket 23c are integrally formed with the left tank 23, the left tank 23,
  • the joint claw 23a and the connection bracket 23c can be molded at a time, and the manufacturing process is simplified by eliminating the need to separately manufacture the engagement claw 23a and the connection bracket 23c or separately attach them to the left tank 23.
  • the right tank 24 (second right tank) of the sub-radiator 21 is made of resin, and the engaging claw 24a (second engaging portion) and the connecting bracket 24c are integrally formed with the right tank 24, the right tank 24,
  • the joint claw 24a and the connection bracket 24c can be molded at a time, and the manufacturing process is simplified by eliminating the need to separately manufacture the engagement claw 24a and the connection bracket 24c or separately attaching them to the right tank 24.
  • the integral formation of the left tank 23, the engagement claw 23a, and the connection bracket 23c may be performed simultaneously with the integral formation of the right tank 24, the engagement claw 24a, and the connection bracket 24c. At the same time as the integral molding, the assembly of the left tank 23 and the right tank 24 to the core portion 22 may be completed.
  • the water-cooled condenser 41 By providing the water-cooled condenser 41 in the left tank 23 of the sub-radiator 21, between the second refrigerant flowing in the left tank 23 (before entering the core portion 22) and the third refrigerant flowing in the water-cooled condenser 41.
  • the third refrigerant flows through the air-cooled condenser 31 after being cooled by the water-cooled condenser 41. Since the third refrigerant flowing into the air-cooled condenser 31 from the water-cooled condenser 41 is already cooled by the second refrigerant, the third refrigerant can be efficiently cooled by the air-cooled condenser 31.
  • the refrigerant inlet portion 23b of the sub radiator 21 and the inflow / outflow tank 33 (inflow portion 33a) of the air-cooling condenser 31 are disposed on the same side in the left-right direction, and the refrigerant flow direction of the sub radiator 21 and the proximity of the sub radiator 21 are close to each other. Since the upper core portion 32a that is a part of the air-cooling condenser 31 is in the same direction as the refrigerant flow direction, the thermal influence between the sub-radiator 21 and the air-cooling condenser 31 can be minimized.
  • the refrigerant inlet portion 16b of the main radiator 11 and the refrigerant inlet portion 23b of the sub radiator 21 are arranged on the same side in the left-right direction, and the refrigerant flowing direction of the main radiator 11 and the sub radiator 21 adjacent to the main radiator 11 are arranged. Since the flow direction of the refrigerant is the same direction, the thermal effect of the main radiator 11 and the sub radiator 21 can be minimized.
  • An inflow / outflow tank 33 (inflow portion 33 a) of the air-cooling condenser 31, a refrigerant inlet portion 16 b of the main radiator 11, and a refrigerant inlet portion 23 b of the sub-radiator 21 are arranged on the same side in the left-right direction, and the refrigerant of the main radiator 11
  • the flow direction of the refrigerant, the flow direction of the refrigerant in the sub radiator 21 adjacent to the main radiator 11, and the flow direction of the refrigerant in the upper core portion 32a of the air-cooled condenser 31 are the same direction. Therefore, the thermal effects of the main radiator 11, the sub radiator 21, and the air cooling condenser 31 can be minimized.
  • the air guides 16d, 17d, 18a, and 18b are provided on the main radiator 11, the cooling air can be efficiently guided to the main radiator 11 and the refrigerant can be efficiently cooled by the main radiator 11 and the like.
  • the difference between the composite heat exchanger A of the fourth embodiment and the composite heat exchanger A of the third embodiment is that the connected heat exchanger B is the connected heat exchanger B of the second embodiment.
  • the coupled heat exchanger B can be assembled as in the case of the third embodiment, and the combined heat exchanger A can be obtained by attaching the coupled heat exchanger B to the main radiator 11.
  • the air guides 13c and 14c are integrally formed in the upper tank 13 and the lower tank 14, respectively, and the air guides 16d and 17d are integrally formed in the left tank 16 and the right tank 17, respectively.
  • the air guide may be a separate body from the upper tank 13, the lower tank 14, the left tank 16, and the right tank 17.
  • connection heat exchanger B which has arrange
  • the flow direction of the second refrigerant flowing through the sub-radiator and the flow direction of the third refrigerant flowing through the air-cooling condenser are set in the same direction in order to suppress the thermal influence between the air-cooling condenser and the sub-radiator disposed on the upper side. It is desirable.
  • the engaging claw (engaged portion) may be engaged with an engaging rod (engaging portion) or an engaging bracket (engaging portion).
  • a water cooling condenser may be provided in the right tank of the sub radiator.
  • connection heat exchanger B after combining the sub radiator 21 and the air-cooled condenser 31 into the connection heat exchanger B, the connection heat exchanger B was attached to the main radiator 11, but the sub radiator 21 And the air cooling condenser 31 are not connected to the heat exchanger B, that is, the sub radiator 21 and the air cooling condenser 31 are separately attached to the main radiator 11 by the engaging members such as the engaging claws or engaging pieces described above. Also good.
  • the connected heat exchanger in which the second heat exchanger and the third heat exchanger are connected in the up-down position is integrally attached to the first heat exchanger. Therefore, the layout is improved, the arrangement space (attachment space) can be reduced, and the attachment to the vehicle body can be easily performed.
  • a Combined heat exchanger B Linked heat exchanger 11 Main radiator (first heat exchanger) 12 Core part (first core part) 13 Upper tank (first upper tank) 13a Locking claw (engaged part) 13b Refrigerant inlet (first refrigerant inlet) 13c Air guide 14 Lower tank (first lower tank) 14a Locking piece (engaged part) 14b Refrigerant outlet (first refrigerant outlet) 14c Air guide 15a Air guide 15d Air guide 16 Left tank (first left tank) 16a Locking claw (engaged part) 16b Refrigerant inlet (first refrigerant inlet) 16c Locking piece (engaged part) 16d Air guide 17 Right tank (first right tank) 17a Locking claw (engaged part) 17b Refrigerant outlet (first refrigerant outlet) 17c Locking piece (engaged part) 17d Air guide 18a Air guide 18b Air guide 21 Sub-radiator (second heat exchanger) 22 Core part (second core part) 23 Left tank (second left tank) 23a engagement claw (second

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Abstract

This combined heat exchanger (A) is configured such that a second heat exchanger (21) and a third heat exchanger (31) are vertically arranged in the same vertical plane, the lower side of the second heat exchanger (21) located on the upper side and the upper side of the third heat exchanger (31) located on the lower side are connected to form a joint heat exchanger (B), and the joint heat exchanger (B) is disposed upstream of a first heat exchanger (11) relative to the direction of flow of cooling air and is mounted integrally to the first heat exchanger (11).

Description

複合型熱交換器Combined heat exchanger
　この発明は、例えば、車両搭載用の複合型熱交換器に関し、詳しくは、レイアウト性をよくした複合型熱交換器に関する。 The present invention relates to, for example, a composite heat exchanger mounted on a vehicle, and more particularly to a composite heat exchanger with improved layout.
　自動車に搭載される複合型熱交換器として、エンジンを冷却する冷却水（第１冷媒）と冷却風との間で熱交換する第１熱交換器と、車両に搭載された強電系機器（電動駆動源やインバーターなどの車載電気機器）を冷却する冷却水（第２冷媒）と冷却風との間で熱交換する第２熱交換器と、空調用の冷媒（第３冷媒）と冷却風との間で熱交換する第３熱交換器とを備えたものがある（例えば、特許文献１参照）。 As a combined heat exchanger mounted on an automobile, a first heat exchanger that exchanges heat between cooling water (first refrigerant) that cools the engine and cooling air, and a high-powered device (electric) that is mounted on the vehicle A second heat exchanger that exchanges heat between cooling water (second refrigerant) and cooling air that cools a drive source and an on-vehicle electric device such as an inverter, an air conditioning refrigerant (third refrigerant), and cooling air And a third heat exchanger that exchanges heat between the two (for example, see Patent Document 1).
特開２００６－０２１７４９号公報JP 2006-021749 A
　上記した従来の複合型熱交換器は、各熱交換器を個別に車両に取り付けているので、配置スペース（取付スペース）が広くなるとともに、取付構造が複雑になっている。 In the above-described conventional composite heat exchanger, each heat exchanger is individually attached to the vehicle, so that the arrangement space (mounting space) is widened and the mounting structure is complicated.
　そこで本発明は、上記した不都合を解消するためになされたものであり、レイアウト性がよくなり、配置スペース（取付スペース）を狭くすることができるとともに、車体への取付を簡単に行うことのできる複合型熱交換器を提供する。 Accordingly, the present invention has been made to solve the above-described inconveniences, improves the layout, can reduce the arrangement space (mounting space), and can be easily attached to the vehicle body. A combined heat exchanger is provided.
　本発明の複合型熱交換器は、第１冷媒と冷却風との間で熱交換する第１熱交換器と、第２冷媒と冷却風との間で熱交換する第２熱交換器と、第３冷媒と冷却風との間で熱交換する第３熱交換器と、を備える複合型熱交換器であって、第２熱交換器と第３熱交換器とを略同一平面上で上下に配置して連結した連結熱交換器が、第１熱交換器に対して冷却風の上流側に配置されて第１熱交換器に一体的に取り付けられることを特徴とする複合型熱交換器である。 The composite heat exchanger of the present invention includes a first heat exchanger that exchanges heat between the first refrigerant and cooling air, a second heat exchanger that exchanges heat between the second refrigerant and cooling air, And a third heat exchanger that exchanges heat between the third refrigerant and the cooling air, wherein the second heat exchanger and the third heat exchanger are moved up and down on substantially the same plane. The combined heat exchanger arranged and connected to the first heat exchanger is disposed upstream of the cooling air with respect to the first heat exchanger and is integrally attached to the first heat exchanger. It is.
　本発明の複合型熱交換器は、第１熱交換器は、第１コア部と、第１コア部の上側および下側にそれぞれ配置された第１上側タンクおよび第１下側タンクとを有し、第２熱交換器は、第２コア部と、第２コア部の左側および右側にそれぞれ配置された第２左側タンクおよび第２右側タンクとを有し、第３熱交換器は、第３コア部と、第３コア部の左側および右側にそれぞれ配置された第３左側タンクおよび第３右側タンクとを有し、連結熱交換器は、第１上側タンクまたは第１下側タンクの一方に、第２左側タンクと第２右側タンクとを取り付け、第１上側タンクまたは第１下側タンクの他方に、第３左側タンクと第３右側タンクとを取り付けることにより、第１熱交換器に取り付けられていることを特徴とするものであっても良い。 In the composite heat exchanger according to the present invention, the first heat exchanger has a first core part, and a first upper tank and a first lower tank respectively disposed on the upper side and the lower side of the first core part. The second heat exchanger has a second core part, a second left tank and a second right tank respectively disposed on the left and right sides of the second core part, and the third heat exchanger 3 core portions, and a third left tank and a third right tank disposed on the left and right sides of the third core portion, respectively, and the connected heat exchanger is one of the first upper tank or the first lower tank. In addition, the second left tank and the second right tank are attached, and the third left tank and the third right tank are attached to the other of the first upper tank or the first lower tank. It may be characterized by being attached.
　本発明の複合型熱交換器は、第１上側タンクと第１下側タンクのそれぞれに、被係合部が設けられ、第２左側タンクと第２右側タンクのそれぞれに、被係合部に対応する第２係合部が設けられ、第３左側タンクと第３右側タンクのそれぞれに、被係合部に対応する第３係合部が設けられ、第２係合部と第３係合部とを被係合部に係合させることにより、連結熱交換器は第１熱交換器に取り付けられることを特徴とするものであっても良い。 In the composite heat exchanger according to the present invention, the engaged portion is provided in each of the first upper tank and the first lower tank, and the engaged portion is provided in each of the second left tank and the second right tank. A corresponding second engagement portion is provided, and a third engagement portion corresponding to the engaged portion is provided in each of the third left tank and the third right tank, and the second engagement portion and the third engagement are provided. The connected heat exchanger may be attached to the first heat exchanger by engaging the portion with the engaged portion.
　本発明の複合型熱交換器は、第１上側タンクおよび第１下側タンクは樹脂製とされ、被係合部が、第１上側タンク、第１下側タンクに一体成型されていることを特徴とするものであっても良い。 In the composite heat exchanger according to the present invention, the first upper tank and the first lower tank are made of resin, and the engaged portion is integrally formed with the first upper tank and the first lower tank. It may be a feature.
　本発明の複合型熱交換器は、第２左側タンクおよび第２右側タンクは樹脂製とされ、第２係合部が、第２左側タンク、第２右側タンクに一体成型されていることを特徴とするものであっても良い。 In the composite heat exchanger according to the present invention, the second left tank and the second right tank are made of resin, and the second engagement portion is integrally formed with the second left tank and the second right tank. It may be.
　本発明の複合型熱交換器は、第２熱交換器の第２冷媒入口部と、第３熱交換器の第３冷媒入口部とは、左右の同じ側に配置されていることを特徴とするものであっても良い。 The composite heat exchanger according to the present invention is characterized in that the second refrigerant inlet portion of the second heat exchanger and the third refrigerant inlet portion of the third heat exchanger are arranged on the same left and right sides. It may be what you do.
　本発明の複合型熱交換器は、第１熱交換器は、第１コア部と、第１コア部の左側および右側にそれぞれ配置された第１左側タンクおよび第１右側タンクとを有し、第２熱交換器は、第２コア部と、第２コア部の左側および右側にそれぞれ配置された第２左側タンクおよび第２右側タンクとを有し、第３熱交換器は、第３コア部と、第３コア部の左側および右側にそれぞれ配置された第３左側タンクおよび第３右側タンクとを有し、連結熱交換器は、第１左側タンクに第２左側タンクと第３左側タンクを取り付け、第１右側タンクに第２右側タンクと第３右側タンクを取り付けることにより、第１熱交換器に取り付けられていること、を特徴とするものであっても良い。 In the composite heat exchanger of the present invention, the first heat exchanger has a first core part, and a first left tank and a first right tank respectively disposed on the left side and the right side of the first core part, The second heat exchanger has a second core part, a second left tank and a second right tank respectively disposed on the left and right sides of the second core part, and the third heat exchanger has a third core And a third left tank and a third right tank disposed on the left and right sides of the third core part, respectively, and the connected heat exchanger has a second left tank and a third left tank in the first left tank. And the second right tank and the third right tank are attached to the first right tank, thereby being attached to the first heat exchanger.
　本発明の複合型熱交換器は、第１左側タンクと第１右側タンクのそれぞれに、被係合部が設けられ、第２左側タンクと第２右側タンクのそれぞれに、被係合部に対応する第２係合部が設けられ、第３左側タンクと第３右側タンクのそれぞれに、被係合部に対応する第３係合部が設けられ、第２係合部と第３係合部とを被係合部に係合させることにより、連結熱交換器は第１熱交換器に取り付けられること、を特徴とするものであっても良い。 In the composite heat exchanger according to the present invention, each of the first left tank and the first right tank is provided with an engaged portion, and each of the second left tank and the second right tank corresponds to the engaged portion. A second engaging portion is provided, and each of the third left tank and the third right tank is provided with a third engaging portion corresponding to the engaged portion, and the second engaging portion and the third engaging portion. The coupled heat exchanger may be attached to the first heat exchanger by engaging the engaged portion with the engaged portion.
　本発明の複合型熱交換器は、第１左側タンクおよび第１右側タンクは樹脂製とされ、被係合部が、第１左側タンク、第１右側タンクに一体成型されていることを特徴とするものであっても良い。 The composite heat exchanger of the present invention is characterized in that the first left tank and the first right tank are made of resin, and the engaged portion is integrally formed with the first left tank and the first right tank. It may be what you do.
　本発明の複合型熱交換器は、第２左側タンクおよび第２右側タンクは樹脂製とされ、第２係合部が、第２左側タンク、第２右側タンクに一体成型されていることを特徴とするものであっても良い。 In the composite heat exchanger according to the present invention, the second left tank and the second right tank are made of resin, and the second engagement portion is integrally formed with the second left tank and the second right tank. It may be.
　本発明の複合型熱交換器は、第１熱交換器の第１冷媒入口部と、第２熱交換器の第２冷媒入口部とは、左右の同じ側に配置されていることを特徴とするものであっても良い。 The composite heat exchanger according to the present invention is characterized in that the first refrigerant inlet portion of the first heat exchanger and the second refrigerant inlet portion of the second heat exchanger are arranged on the same left and right sides. It may be what you do.
　本発明の複合型熱交換器は、第１熱交換器の第１冷媒入口部と、第３熱交換器の第３冷媒入口部とは、左右の同じ側に配置されていることを特徴とするものであっても良い。 The composite heat exchanger of the present invention is characterized in that the first refrigerant inlet portion of the first heat exchanger and the third refrigerant inlet portion of the third heat exchanger are arranged on the same left and right sides. It may be what you do.
　本発明の複合型熱交換器は、第２左側タンクまたは第２右側タンクの中に第４熱交換器を設け、第４熱交換器は、第２コア部に流入する前の第２冷媒と、第３冷媒との間で熱交換を行い、第４熱交換器から流出した第３冷媒は、第３熱交換器に流入することを特徴とするものであっても良い。 In the composite heat exchanger of the present invention, a fourth heat exchanger is provided in the second left tank or the second right tank, and the fourth heat exchanger includes the second refrigerant before flowing into the second core portion. The third refrigerant that exchanges heat with the third refrigerant and flows out of the fourth heat exchanger may flow into the third heat exchanger.
図１は、第１実施形態に係る複合型熱交換器を示す斜視図である。FIG. 1 is a perspective view showing a composite heat exchanger according to the first embodiment. 図２は、連結前のサブラジエータと、空冷コンデンサとを示す斜視図である。FIG. 2 is a perspective view showing the sub-radiator and the air-cooled condenser before connection. 図３は、連結熱交換器と、メインラジエータとを示す斜視図である。FIG. 3 is a perspective view showing the coupled heat exchanger and the main radiator. 図４は、冷却風の下流側から見たときのメインラジエータの裏面図である。FIG. 4 is a back view of the main radiator as viewed from the downstream side of the cooling air. 図５は、連結熱交換器をメインラジエータに取り付けるための説明図である。FIG. 5 is an explanatory diagram for attaching the coupled heat exchanger to the main radiator. 図６は、第２実施形態に係る複合型熱交換器の、連結熱交換器と、メインラジエータとを示す斜視図である。FIG. 6 is a perspective view showing a coupled heat exchanger and a main radiator of the composite heat exchanger according to the second embodiment. 図７は、第３実施形態に係る複合型熱交換器の、連結熱交換器と、メインラジエータとを示す斜視図である。FIG. 7 is a perspective view showing a coupled heat exchanger and a main radiator of the composite heat exchanger according to the third embodiment. 図８は、第４実施形態に係る複合型熱交換器の、連結熱交換器と、メインラジエータとを示す斜視図である。FIG. 8 is a perspective view showing a coupled heat exchanger and a main radiator of the composite heat exchanger according to the fourth embodiment. 図９は、本発明の複合型熱交換器が適用される車両用熱交換システムの構成図である。FIG. 9 is a configuration diagram of a vehicle heat exchange system to which the composite heat exchanger of the present invention is applied.
　以下、この発明の実施形態を、図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　この発明の複合型熱交換器が適用される車両用熱交換システム１は、図９に示すように、メインラジエータ１１（第１熱交換器）と、サブラジエータ２１（第２熱交換器）と、空冷コンデンサ３１（第３熱交換器）と、水冷コンデンサ４１（第４熱交換器）とを備えている。 As shown in FIG. 9, a vehicle heat exchange system 1 to which the composite heat exchanger of the present invention is applied includes a main radiator 11 (first heat exchanger), a sub-radiator 21 (second heat exchanger), The air-cooled condenser 31 (third heat exchanger) and the water-cooled condenser 41 (fourth heat exchanger) are provided.
　冷却風は、メインラジエータ１１、サブラジエータ２１、空冷コンデンサ３１を通過する。冷却風の通過により、メインラジエータ１１、サブラジエータ２１、空冷コンデンサ３１のそれぞれを流れる冷媒は、熱交換によって冷却される。 The cooling air passes through the main radiator 11, the sub radiator 21, and the air cooling condenser 31. Due to the passage of the cooling air, the refrigerant flowing through each of the main radiator 11, the sub radiator 21, and the air cooling condenser 31 is cooled by heat exchange.
　メインラジエータ１１は、サブラジエータ２１及び空冷コンデンサ３１に対して冷却風の下流側に配置され、且つ、モータファン２に対して冷却風の上流側に配置されている。 The main radiator 11 is arranged on the downstream side of the cooling air with respect to the sub radiator 21 and the air cooling condenser 31 and is arranged on the upstream side of the cooling air with respect to the motor fan 2.
　メインラジエータ１１は、エンジン３を冷却する冷却水（第１冷媒）を、冷却風との熱交換により冷却するものである。 The main radiator 11 cools the cooling water (first refrigerant) for cooling the engine 3 by heat exchange with cooling air.
　エンジン３を冷却する冷却水は、ポンプ４によって循環される。 The cooling water that cools the engine 3 is circulated by the pump 4.
　サブラジエータ２１は、メインラジエータ１１に対して冷却風の上流側に配置されている。 The sub-radiator 21 is disposed upstream of the cooling air with respect to the main radiator 11.
　サブラジエータ２１は、強電系機器５（電動駆動源やインバーターなどの車載電気機器）を冷却する冷却水（第２冷媒）を、冷却風との熱交換により冷却するものである。 The sub-radiator 21 cools cooling water (second refrigerant) that cools the high-powered equipment 5 (on-vehicle electrical equipment such as an electric drive source and an inverter) by heat exchange with cooling air.
　このサブラジエータ２１は、必ずしも強電系機器５を冷却する冷却水を冷却する必要はなく、水冷チャージエアクーラ（水冷ＣＡＣ）を冷却する冷却水（第２冷媒）を冷却してもよい。 The sub-radiator 21 does not necessarily need to cool the cooling water that cools the high-voltage equipment 5, and may cool the cooling water (second refrigerant) that cools the water-cooled charge air cooler (water-cooled CAC).
　強電系機器５を冷却する冷却水は、ポンプ６によって循環される。 The cooling water that cools the high-voltage equipment 5 is circulated by the pump 6.
　空冷コンデンサ３１は、メインラジエータ１１に対して冷却風の上流側に配置されている。 The air-cooled condenser 31 is arranged on the upstream side of the cooling air with respect to the main radiator 11.
　空冷コンデンサ３１は、空調用の冷媒（第３冷媒）を、冷却風との熱交換により冷却するものである。 The air-cooling condenser 31 cools the air-conditioning refrigerant (third refrigerant) by heat exchange with cooling air.
　水冷コンデンサ４１は、空調用の冷媒（第３冷媒）を、強電系機器５を流れる冷却水（第２冷媒）との熱交換により冷却するものである。 The water-cooled condenser 41 cools the air-conditioning refrigerant (third refrigerant) by heat exchange with the cooling water (second refrigerant) flowing through the high-voltage equipment 5.
　空冷コンデンサ３１と水冷コンデンサ４１とは、冷凍サイクル内で直列に接続されており、冷凍サイクル内で、水冷コンデンサ４１は空冷コンデンサ３１の上流側に接続されている。 The air-cooled condenser 31 and the water-cooled condenser 41 are connected in series in the refrigeration cycle, and the water-cooled condenser 41 is connected to the upstream side of the air-cooled condenser 31 in the refrigeration cycle.
　すなわち、冷凍サイクルのコンプレッサ（圧縮機）によって高温高圧とされた空調用の冷媒（第３冷媒）は、まず、水冷コンデンサ４１に流入して水冷コンデンサ４１によって冷却され、その後、空冷コンデンサ３１に流入して空冷コンデンサ３１によって冷却される。空冷コンデンサ３１および水冷コンデンサ４１によって冷却された空調用の冷媒（第３冷媒）は、エバポレータへと流出する。 That is, the air-conditioning refrigerant (third refrigerant) that has been made high temperature and high pressure by the compressor (compressor) of the refrigeration cycle first flows into the water-cooled condenser 41 and is cooled by the water-cooled condenser 41, and then flows into the air-cooled condenser 31. Then, it is cooled by the air cooling condenser 31. The air-conditioning refrigerant (third refrigerant) cooled by the air-cooled condenser 31 and the water-cooled condenser 41 flows out to the evaporator.
［第１実施形態］
　この発明の第１実施形態である複合型熱交換器を、図１～図５を参照して説明する。 [First Embodiment]
A composite heat exchanger according to a first embodiment of the present invention will be described with reference to FIGS.
　図３に示すように、メインラジエータ１１は、横長の矩形をしたコア部１２（第１コア部）と、このコア部１２の上下に設けられた、上側タンク１３（第１上側タンク）、および下側タンク１４（第１下側タンク）とで構成されている。 As shown in FIG. 3, the main radiator 11 includes a horizontally-long rectangular core portion 12 (first core portion), an upper tank 13 (first upper tank) provided above and below the core portion 12, and It is comprised by the lower side tank 14 (1st lower side tank).
　上側タンク１３（第１上側タンク）は、樹脂製とされ、上側タンク１３には、複数の係止爪１３ａ（被係合部）、冷媒入口部１３ｂ（第１冷媒入口部）、板状のエアーガイド１３ｃが一体成型で設けられている。複数の係止爪１３ａは、例えば、上側タンク１３の上流側（風上側、前方）の左右に２つ設けられており、冷媒入口部１３ｂは、上側タンク１３の下流側（風下側、後方）へ突出するように設けられており、板状のエアーガイド１３ｃは、上側タンク１３の上流側に位置して上側（上方）へ延びるとともに、上側タンク１３の左右方向に向けて延びて設けられている。 The upper tank 13 (first upper tank) is made of resin, and the upper tank 13 includes a plurality of locking claws 13a (engaged portions), a refrigerant inlet portion 13b (first refrigerant inlet portion), a plate-like shape. An air guide 13c is provided by integral molding. The plurality of locking claws 13a are provided, for example, on the left and right sides of the upstream side (windward side, front side) of the upper tank 13, and the refrigerant inlet portion 13b is located on the downstream side (downstream side, rear side) of the upper tank 13. The plate-like air guide 13 c is located upstream of the upper tank 13 and extends upward (upward), and extends in the left-right direction of the upper tank 13. Yes.
　下側タンク１４（第１下側タンク）は、樹脂製とされ、下側タンク１４には、係止孔を有する複数の係止片１４ａ（被係合部）、冷媒出口部１４ｂ（第１冷媒出口部）（図４参照）、板状のエアーガイド１４ｃが一体成型で設けられている。複数の係止片１４ａは、例えば、下側タンク１４の上流側の左右に２つ設けられており、冷媒出口部１４ｂは、下側タンク１４の下流側へ突出するように設けられており、板状のエアーガイド１４ｃは、下側タンク１４の上流側に延びるとともに、下側タンク１４の左右方向へ向けて延びて設けられている。 The lower tank 14 (first lower tank) is made of resin, and the lower tank 14 includes a plurality of locking pieces 14a (engaged portions) having locking holes, and a refrigerant outlet portion 14b (first portion). A refrigerant outlet portion (see FIG. 4) and a plate-like air guide 14c are provided by integral molding. The plurality of locking pieces 14a are provided, for example, on the left and right sides of the upstream side of the lower tank 14, and the refrigerant outlet portion 14b is provided so as to protrude to the downstream side of the lower tank 14, The plate-like air guide 14 c extends to the upstream side of the lower tank 14 and extends in the left-right direction of the lower tank 14.
　そして、コア部１２の左右端に、後述する連結熱交換器Ｂ側へ向けて延びるとともに、上下方向へ延びた板状のエアーガイド１５ａ，１５ｂが設けられている。 And, at the left and right ends of the core portion 12, plate-like air guides 15a and 15b extending in the up-down direction and extending toward the connected heat exchanger B described later are provided.
　板状のエアーガイド１３ｃ，１４ｃ，１５ａ，１５ｂにより、車両前面開口からの、後述する連結熱交換器Ｂを経由しない冷却風を有効にメインラジエータ１１に誘導することができる。 The plate-like air guides 13c, 14c, 15a, and 15b can effectively guide the cooling air from the opening on the front of the vehicle to the main radiator 11 without going through the connection heat exchanger B described later.
　このメインラジエータ１１において、上側タンク１３の冷媒入口部１３ｂから流入した第１冷媒は、上側タンク１３、コア部１２、下側タンク１４の順に経由して流れた後、冷媒出口部１４ｂから流出する。メインラジエータ１１内を第１冷媒が流れる過程のうち、コア部１２を第１冷媒が流れる際に、第１冷媒と冷却風との間で、熱交換が行われる。 In the main radiator 11, the first refrigerant flowing from the refrigerant inlet portion 13b of the upper tank 13 flows through the upper tank 13, the core portion 12, and the lower tank 14 in this order, and then flows out from the refrigerant outlet portion 14b. . Among the processes in which the first refrigerant flows through the main radiator 11, when the first refrigerant flows through the core portion 12, heat exchange is performed between the first refrigerant and the cooling air.
　図２に示すように、サブラジエータ２１は、横長の矩形をしたコア部２２（第２コア部）と、このコア部２２の左右に設けられた、左側タンク２３（第２左側タンク）、および右側タンク２４（第２右側タンク）とで構成されている。 As shown in FIG. 2, the sub-radiator 21 includes a horizontally-long rectangular core portion 22 (second core portion), a left tank 23 (second left tank) provided on the left and right sides of the core portion 22, and It is comprised with the right side tank 24 (2nd right side tank).
　左側タンク２３は、樹脂製とされ、左側タンク２３には、メインラジエータ１１の上側タンク１３の左側の係止爪１３ａに係合する係合爪２３ａ（第２係合部）、冷媒入口部２３ｂ（第２冷媒入口部）、左側タンク２３の下端から下側へ延びる、取付孔２３ｄを有する連結ブラケット２３ｃが一体成型で設けられている。冷媒入口部２３ｂは、例えば、左側タンク２３の上端、またはコア部２２と対向する側の左側タンク２３の側面（左側タンク２３の左側側面）に設けられている。 The left tank 23 is made of resin. The left tank 23 includes an engagement claw 23a (second engagement portion) that engages with a left engagement claw 13a of the upper tank 13 of the main radiator 11, and a refrigerant inlet portion 23b. (Second refrigerant inlet portion) A connection bracket 23c having a mounting hole 23d extending downward from the lower end of the left tank 23 is provided by integral molding. The refrigerant inlet 23b is provided on, for example, the upper end of the left tank 23 or the side surface of the left tank 23 on the side facing the core portion 22 (the left side surface of the left tank 23).
　右側タンク２４は、樹脂製とされ、右側タンク２４には、メインラジエータ１１の上側タンク１３の右側の係止爪１３ａに係合する係合爪２４ａ（第２係合部）、冷媒出口部２４ｂ（第２冷媒出口部）、右側タンク２４の下端から下側へ延びる、取付孔２４ｄを有する連結ブラケット２４ｃが一体成型で設けられている。冷媒出口部２４ｂは、例えば、右側タンク２４の上端、またはコア部２２と対向する側の右側タンク２４の側面（右側タンク２４の右側側面）に設けられている。 The right tank 24 is made of resin. The right tank 24 includes an engagement claw 24a (second engagement portion) that engages with a right engagement claw 13a of the upper tank 13 of the main radiator 11, and a refrigerant outlet portion 24b. (Second refrigerant outlet portion) A connection bracket 24c having a mounting hole 24d extending downward from the lower end of the right tank 24 is integrally formed. The refrigerant outlet portion 24b is provided, for example, on the upper end of the right tank 24 or on the side surface of the right tank 24 facing the core portion 22 (the right side surface of the right tank 24).
　そして、左側タンク２３の中には、水冷コンデンサ４１が収容されている。 In the left tank 23, a water-cooled condenser 41 is accommodated.
　このサブラジエータ２１において、左側タンク２３の冷媒入口部２３ｂから流入した第２冷媒は、左側タンク２３、コア部２２、右側タンク２４の順に経由して流れた後、冷媒出口部２４ｂから流出する。サブラジエータ２１内を第２冷媒が流れる過程のうち、コア部２２を第２冷媒が流れる際に、第２冷媒と冷却風との間で、熱交換が行われる。 In the sub-radiator 21, the second refrigerant flowing from the refrigerant inlet 23b of the left tank 23 flows through the left tank 23, the core 22 and the right tank 24 in this order, and then flows out from the refrigerant outlet 24b. Among the processes in which the second refrigerant flows through the sub-radiator 21, when the second refrigerant flows through the core portion 22, heat exchange is performed between the second refrigerant and the cooling air.
　左側タンク２３においては、コア部２２に流入する前の第２冷媒と、水冷コンデンサ４１に流入する第３冷媒との間で、熱交換が行われる。 In the left tank 23, heat exchange is performed between the second refrigerant before flowing into the core portion 22 and the third refrigerant flowing into the water-cooled condenser 41.
　もちろん、必要に応じて、サブラジエータ２１の冷却水（第２冷媒）が上記方向と反対の方向へ流れてもよい。 Of course, if necessary, the cooling water (second refrigerant) of the sub-radiator 21 may flow in a direction opposite to the above direction.
　例えば、サブラジエータ２１の冷却水（第２冷媒）が冷媒出口部２４ｂから流入して、コア部２２で熱交換を経た後、冷媒入口部２３ｂから流出してもよい。 For example, the cooling water (second refrigerant) of the sub-radiator 21 may flow in from the refrigerant outlet portion 24b, exchange heat in the core portion 22, and then flow out of the refrigerant inlet portion 23b.
　この場合、水冷コンデンサ４１は、サブラジエータ２１のコア部２２によって冷却された後の冷却水によって冷却される。 In this case, the water-cooled condenser 41 is cooled by the cooling water after being cooled by the core portion 22 of the sub-radiator 21.
　また、本実施形態における、第３冷媒が流れ込むための水冷コンデンサ４１の冷媒入口部は左側タンク２３の上端または側面に設けることができ、同じように、第３冷媒が流れ出すための水冷コンデンサ４１の冷媒出口部は、左側タンク２３の側面または下端に設けることができる。 Further, in this embodiment, the refrigerant inlet portion of the water-cooled condenser 41 for the third refrigerant to flow can be provided at the upper end or the side surface of the left tank 23, and similarly, the water-cooled condenser 41 for the third refrigerant to flow out. The refrigerant outlet portion can be provided on the side surface or the lower end of the left tank 23.
　図２に示すように、空冷コンデンサ３１は、横長の矩形をしたコア部３２（第３コア部）と、このコア部３２の左右に設けられた流入流出タンク３３（左側タンク、第３左側タンク）、流出流入タンク３４（右側タンク、第３右側タンク）とで構成されている。 As shown in FIG. 2, the air-cooled condenser 31 includes a horizontally-long rectangular core portion 32 (third core portion) and inflow / outflow tanks 33 (left tank, third left tank) provided on the left and right sides of the core portion 32. ), An outflow / inflow tank 34 (right tank, third right tank).
　コア部３２は、上下に上側コア部３２ａと、下側コア部３２ｂとに分割されている。 The core part 32 is vertically divided into an upper core part 32a and a lower core part 32b.
　コア部３２の、上側コア部３２ａと下側コア部３２ｂとに対応して、流入流出タンク３３は上下に分割されている。流入流出タンク３３は、上側コア部３２ａに対応して上側に位置する流入部３３ａ（第３冷媒入口部）と、下側コア部３２ｂに対応して下側に位置する流出部３３ｂ（第３冷媒出口部）とを有する。 Corresponding to the upper core portion 32a and the lower core portion 32b of the core portion 32, the inflow / outflow tank 33 is divided vertically. The inflow / outflow tank 33 includes an inflow portion 33a (third refrigerant inlet portion) located on the upper side corresponding to the upper core portion 32a, and an outflow portion 33b (third portion) located on the lower side corresponding to the lower core portion 32b. Refrigerant outlet portion).
　空調用の冷媒（第３冷媒）は、空冷コンデンサ３１の外部から流入部３３ａを経由して上側コア部３２ａに流入し、また、下側コア部３２ｂから流出部３３ｂを経由して空冷コンデンサ３１の外部へ流出する。 The air-conditioning refrigerant (third refrigerant) flows from the outside of the air-cooling condenser 31 into the upper core section 32a through the inflow section 33a, and from the lower core section 32b through the outflow section 33b. Out to the outside.
　流入流出タンク３３（流出部３３ｂ）の下端には、係合片３３ｃ（第３係合部）が、ブラケットの方式で設けられている。係合片３３ｃは、メインラジエータ１１の下側タンク１４の左側の係止片１４ａに係合する。 At the lower end of the inflow / outflow tank 33 (outflow portion 33b), an engagement piece 33c (third engagement portion) is provided in a bracket manner. The engaging piece 33 c engages with the locking piece 14 a on the left side of the lower tank 14 of the main radiator 11.
　空冷コンデンサ３１とサブラジエータ２１との固定において、サブラジエータ２１の左側タンク２３に設けられている連結ブラケット２３ｃに設けた取付孔２３ｄに通したネジ等を流入流出タンク３３に加締めることにより、連結ブラケット２３ｃを流入流出タンク３３に固定する。 When the air-cooled condenser 31 and the sub-radiator 21 are fixed, the connection is made by tightening a screw or the like passed through a mounting hole 23 d provided in the connection bracket 23 c provided in the left tank 23 of the sub-radiator 21 to the inflow / outflow tank 33. The bracket 23 c is fixed to the inflow / outflow tank 33.
　もちろん、空冷コンデンサ３１とサブラジエータ２１とをより確実に固定するために、サブラジエータ２１の左側タンク２３の風上側、風下側の両方に、複数の連結ブラケット２３ｃを設け、空冷コンデンサ３１の流入流出タンク３３の風上側、風下側の両方から、流入流出タンク３３を複数の連結ブラケット２３ｃによって挟み込むように配置し、取付孔２３ｄを通したネジ等を流入流出タンク３３に加締めてもよい。 Of course, in order to more securely fix the air-cooling condenser 31 and the sub-radiator 21, a plurality of connection brackets 23 c are provided on both the windward side and the leeward side of the left tank 23 of the sub-radiator 21, The inflow / outflow tank 33 may be disposed so as to be sandwiched by the plurality of connection brackets 23 c from both the windward side and the leeward side of the tank 33, and screws or the like passing through the mounting holes 23 d may be crimped to the inflow / outflow tank 33.
　コア部３２の、上側コア部３２ａと下側コア部３２ｂとに対応して、流出流入タンク３４は上下に分割されている。流出流入タンク３４は、上側コア部３２ａに対応して上側に位置する流出部３４ａと、下側コア部３２ｂに対応して下側に位置する流入部３４ｂとを有する。 Corresponding to the upper core portion 32a and the lower core portion 32b of the core portion 32, the outflow / inflow tank 34 is divided into upper and lower portions. The outflow / inflow tank 34 has an outflow portion 34a located on the upper side corresponding to the upper core portion 32a, and an inflow portion 34b located on the lower side corresponding to the lower core portion 32b.
　なお、流入流出タンク３３と異なり、流出流入タンク３４では、冷媒の流出側、流入側が上下で入れ替わっていることに注意する。すなわち空調用の冷媒（第３冷媒）は、上側コア部３２ａから流出部３４ａを経由して後述するリキッドタンク６１へ流出し、また後述するリキッドタンク６１から流入部３４ｂを経由して下側コア部３２ｂに流入する。 Note that, unlike the inflow / outflow tank 33, in the outflow / inflow tank 34, the refrigerant outflow side and the inflow side are switched up and down. That is, the air-conditioning refrigerant (third refrigerant) flows out from the upper core portion 32a via the outflow portion 34a to the liquid tank 61 described later, and from the liquid tank 61 described later via the inflow portion 34b to the lower core. It flows into the part 32b.
　流出流入タンク３４（流入部３４ｂ）の下端には、係合片３４ｃ（第３係合部）が、ブラケットの方式で設けられている。係合片３４ｃは、メインラジエータ１１の下側タンク１４の右側の係止片１４ａに係合する。 At the lower end of the outflow / inflow tank 34 (inflow part 34b), an engagement piece 34c (third engagement part) is provided in a bracket manner. The engagement piece 34 c engages with the right engagement piece 14 a of the lower tank 14 of the main radiator 11.
　空冷コンデンサ３１とサブラジエータ２１との固定において、サブラジエータ２１の右側タンク２４に設けられている連結ブラケット２４ｃに設けた取付孔２４ｄに通したネジ等を流出流入タンク３４に加締めることにより、連結ブラケット２４ｃを流出流入タンク３４に固定する。 When the air-cooling condenser 31 and the sub-radiator 21 are fixed, the connection is made by tightening a screw or the like passed through the mounting hole 24d provided in the connection bracket 24c provided in the right tank 24 of the sub-radiator 21 to the outflow / inflow tank 34. The bracket 24 c is fixed to the outflow / inflow tank 34.
　もちろん、空冷コンデンサ３１とサブラジエータ２１とをより確実に固定するために、サブラジエータ２１の右側タンク２４の風上側、風下側の両方に、複数の連結ブラケット２４ｃを設け、空冷コンデンサ３１の流出流入タンク３４の風上側、風下側の両方から、流出流入タンク３４を複数の連結ブラケット２４ｃによって挟み込むように配置し、取付孔２４ｄを通したネジ等を流出流入タンク３４に加締めてもよい。 Of course, in order to more securely fix the air-cooling condenser 31 and the sub-radiator 21, a plurality of connecting brackets 24c are provided on both the upwind side and the leeward side of the right tank 24 of the sub-radiator 21, so The outflow / inflow tank 34 may be sandwiched between the plurality of connection brackets 24 c from both the windward side and the leeward side of the tank 34, and a screw or the like passing through the mounting hole 24 d may be crimped to the outflow / inflow tank 34.
　流出流入タンク３４には、冷媒を気液分離するリキッドタンク６１（図３参照）が接続される。より具体的には、流出流入タンク３４の流出部３４ａから流出した冷媒は、一度、リキッドタンク６１を経由し、その後、流出流入タンク３４の流入部３４ｂに流れ込むよう、リキッドタンク６１は流出部３４ａと流入部３４ｂの間の冷媒の経路上に接続される。 The outflow / inflow tank 34 is connected to a liquid tank 61 (see FIG. 3) for gas-liquid separation of the refrigerant. More specifically, the liquid tank 61 passes through the liquid tank 61 and then flows into the inflow part 34b of the outflow inflow tank 34 so that the refrigerant that has flowed out of the outflow part 34a of the outflow inflow tank 34 flows into the outflow part 34a. And the inflow portion 34b are connected on the refrigerant path.
　リキッドタンク６１は、サブラジエータ２１の連結ブラケット２４ｃに取り付けられて固定されているが、空冷コンデンサ３１の流出流入タンク３４に取り付けられて固定されてもよい。 Although the liquid tank 61 is attached and fixed to the connection bracket 24c of the sub radiator 21, it may be attached to and fixed to the outflow / inflow tank 34 of the air cooling condenser 31.
　この空冷コンデンサ３１では、水冷コンデンサ４１を経由した第３冷媒が、流入流出タンク３３の流入部３３ａ、上側コア部３２ａ、流出流入タンク３４の流出部３４ａの順に経由してリキッドタンク６１へと流れる。第３冷媒はリキッドタンク６１で気液分離された後、流出流入タンク３４の流入部３４ｂ、下側コア部３２ｂ、流入流出タンク３３の流出部３３ｂを経由して、空冷コンデンサ３１の外部へ流出する。第３冷媒が、コア部３２（上側コア部３２ａ、下側コア部３２ｂ）を通過する過程において、第３冷媒と冷却風との間で、熱交換が行われる。 In the air-cooled condenser 31, the third refrigerant that has passed through the water-cooled condenser 41 flows to the liquid tank 61 through the inflow portion 33 a of the inflow / outflow tank 33, the upper core portion 32 a, and the outflow portion 34 a of the outflow / inflow tank 34. . After the gas and liquid are separated in the liquid tank 61, the third refrigerant flows out of the air-cooled condenser 31 via the inflow portion 34b of the outflow / inflow tank 34, the lower core portion 32b, and the outflow portion 33b of the inflow / outflow tank 33. To do. In the process in which the third refrigerant passes through the core portion 32 (the upper core portion 32a and the lower core portion 32b), heat exchange is performed between the third refrigerant and the cooling air.
　次に、複合型熱交換器Ａの組立について説明する。 Next, the assembly of the composite heat exchanger A will be described.
　まず、図２に示すように、上下方向の同一平面上の上側にサブラジエータ２１を位置させ、下側に空冷コンデンサ３１を位置させる。 First, as shown in FIG. 2, the sub-radiator 21 is positioned on the upper side on the same plane in the vertical direction, and the air-cooling condenser 31 is positioned on the lower side.
　そして、連結ブラケット２３ｃ，２４ｃの取付孔２３ｄ，２４ｄ、およびボルト等を用いて、サブラジエータ２１と空冷コンデンサ３１とを連結する。 Then, the sub-radiator 21 and the air-cooled condenser 31 are connected using the mounting holes 23d and 24d of the connection brackets 23c and 24c, bolts, and the like.
　この場合、上述したように、空冷コンデンサ３１の流入流出タンク３３、流出流入タンク３４を、上流側もしくは下流側の一方から加締めて固定したり、上流側および下流側の両方から加締めて固定したりしてもよいが、加締めではなく、嵌合、接着や溶接など、その他の固定方法を使用してもよい。 In this case, as described above, the inflow / outflow tank 33 and the outflow / inflow tank 34 of the air-cooled condenser 31 are fixed by caulking from either the upstream side or the downstream side, or by caulking from both the upstream side and the downstream side. However, other fixing methods such as fitting, adhesion, and welding may be used instead of caulking.
　そして、図３に示すように、水冷コンデンサ４１と、空冷コンデンサ３１の流入部３３ａとを配管５１で接続する。配管５１の接続により、サブラジエータ２１と空冷コンデンサ３１とを更に固定する構造としても良い。 Then, as shown in FIG. 3, the water-cooled condenser 41 and the inflow portion 33 a of the air-cooled condenser 31 are connected by a pipe 51. The sub radiator 21 and the air-cooled condenser 31 may be further fixed by connecting the pipe 51.
　上述したように、略同一平面上で上下に配置して連結させた、サブラジエータ２１（第２熱交換器）と空冷コンデンサ３１（第３熱交換器）とを連結熱交換器Ｂと称する。図５に示すように、連結熱交換器Ｂをメインラジエータ１１（第１熱交換器）に対して冷却風の上流側に位置させ、係合片３３ｃを左側の係止片１４ａに係合させるとともに、係合片３４ｃを右側の係止片１４ａに係合させ、係合爪２３ａを左側の係止爪１３ａに係合させるとともに、係合爪２４ａを右側の係止爪１３ａに係合させることにより、メインラジエータ１１に連結熱交換器Ｂ（サブラジエータ２１、空冷コンデンサ３１）を一体的に取り付ける。メインラジエータ１１に連結熱交換器Ｂを一体的に取り付けると、図１に示す複合型熱交換器Ａになる。 As described above, the sub-radiator 21 (second heat exchanger) and the air-cooled condenser 31 (third heat exchanger), which are arranged vertically and connected on substantially the same plane, are referred to as a connected heat exchanger B. As shown in FIG. 5, the coupled heat exchanger B is positioned on the upstream side of the cooling air with respect to the main radiator 11 (first heat exchanger), and the engaging piece 33c is engaged with the left locking piece 14a. At the same time, the engaging piece 34c is engaged with the right engaging piece 14a, the engaging claw 23a is engaged with the left engaging claw 13a, and the engaging claw 24a is engaged with the right engaging claw 13a. Thus, the coupled heat exchanger B (the sub radiator 21 and the air cooling condenser 31) is integrally attached to the main radiator 11. When the coupled heat exchanger B is integrally attached to the main radiator 11, a composite heat exchanger A shown in FIG.
　このようにして組み立てられた複合型熱交換器Ａは、例えば、図示を省略したメインラジエータ１１に設けられた取付ブラケットを用いて車体に取り付けられる。 The composite heat exchanger A assembled in this way is attached to the vehicle body using, for example, a mounting bracket provided on the main radiator 11 (not shown).
　この発明の第１実施形態によれば、メインラジエータ１１に、サブラジエータ２１と空冷コンデンサ３１とからなる連結熱交換器Ｂを一体的に取り付けたので、レイアウト性がよくなり、配置スペース（取付スペース）を小さくすることが可能になるとともに、車体への取付を簡単に行うことができる。 According to the first embodiment of the present invention, the connection heat exchanger B composed of the sub-radiator 21 and the air-cooled condenser 31 is integrally attached to the main radiator 11, so that the layout is improved and the arrangement space (installation space) is improved. ) Can be made small, and can be easily attached to the vehicle body.
　サブラジエータ２１（第２熱交換器）の左側タンク２３（第２左側タンク）、右側タンク２４（第２右側タンク）をメインラジエータ１１（第１熱交換器）の上側タンク１３（第１上側タンク）に取り付けるとともに、空冷コンデンサ３１（第３熱交換器）の流入流出タンク３３（第３左側タンク）、流出流入タンク３４（第３右側タンク）をメインラジエータ１１の下側タンク１４（第１下側タンク）に取り付けることにより、連結熱交換器Ｂをメインラジエータ１１に取り付けている。すなわち、メインラジエータ１１にサブラジエータ２１および空冷コンデンサ３１を一体的に取り付けたので、レイアウト性がよくなり、配置スペース（取付スペース）を小さくすることが可能になるとともに、車体への取付を簡単に行うことができる。 The left tank 23 (second left tank) and the right tank 24 (second right tank) of the sub radiator 21 (second heat exchanger) are connected to the upper tank 13 (first upper tank) of the main radiator 11 (first heat exchanger). ) And the inflow / outflow tank 33 (third left tank) and the outflow / inflow tank 34 (third right tank) of the air cooling condenser 31 (third heat exchanger) are connected to the lower tank 14 (first lower tank) of the main radiator 11. The connected heat exchanger B is attached to the main radiator 11 by being attached to the side tank. That is, since the sub-radiator 21 and the air-cooled condenser 31 are integrally attached to the main radiator 11, the layout is improved, the arrangement space (attachment space) can be reduced, and the attachment to the vehicle body is easy. It can be carried out.
　サブラジエータ２１の係合爪２３ａ，２４ａ（第２係合部）および空冷コンデンサ３１の係合片３３ｃ，３４ｃ（第３係合部）を、メインラジエータ１１（第１熱交換器）に設けられた被係合部である係止爪１３ａ、係止片１４ａに係合させることによって、連結熱交換器Ｂをメインラジエータ１１に取り付けることができるので、メインラジエータ１１への連結熱交換器Ｂの取付を簡単に行うことができる。 Engagement claws 23a, 24a (second engagement part) of the sub-radiator 21 and engagement pieces 33c, 34c (third engagement part) of the air cooling condenser 31 are provided in the main radiator 11 (first heat exchanger). Since the coupled heat exchanger B can be attached to the main radiator 11 by engaging with the latching claws 13a and the latching pieces 14a that are the engaged parts, the coupled heat exchanger B to the main radiator 11 can be attached. Installation can be performed easily.
　メインラジエータ１１の上側タンク１３を樹脂製とし、係止爪１３ａ、エアーガイド１３ｃが上側タンク１３に一体成型されているので、上側タンク１３、係止爪１３ａ、およびエアーガイド１３ｃは一度で成型できるとともに、係止爪１３ａおよびエアーガイド１３ｃを別途製造したり、別途、上側タンク１３に取り付けたりする必要がなくなることにより、製造工程が簡単になる。 Since the upper tank 13 of the main radiator 11 is made of resin and the locking claw 13a and the air guide 13c are integrally formed with the upper tank 13, the upper tank 13, the locking claw 13a and the air guide 13c can be molded at a time. At the same time, it is not necessary to separately manufacture the locking claw 13a and the air guide 13c, or separately attach to the upper tank 13, thereby simplifying the manufacturing process.
　メインラジエータ１１の下側タンク１４を樹脂製とし、係止片１４ａ、エアーガイド１４ｃが下側タンク１４に一体成型されているので、下側タンク１４、係止片１４ａおよびエアーガイド１４ｃは一度で成型できるとともに、係止片１４ａおよびエアーガイド１４ｃを別途製造したり、別途、下側タンク１４に取り付けたりする必要がなくなることにより、製造工程が簡単になる。 Since the lower tank 14 of the main radiator 11 is made of resin and the locking piece 14a and the air guide 14c are integrally formed with the lower tank 14, the lower tank 14, the locking piece 14a and the air guide 14c are formed at a time. In addition to being able to be molded, it is not necessary to separately manufacture the locking piece 14a and the air guide 14c, or separately attach to the lower tank 14, thereby simplifying the manufacturing process.
　上側タンク１３、係止爪１３ａ、エアーガイド１３ｃの一体成型を、下側タンク１４、係止片１４ａ、エアーガイド１４ｃの一体成型と同時に行っても良い。また、一体成形と同時に、コア部１２への上側タンク１３、下側タンク１４の組み付けが完了するようにしても良い。 The integral molding of the upper tank 13, the locking claw 13a, and the air guide 13c may be performed simultaneously with the integral molding of the lower tank 14, the locking piece 14a, and the air guide 14c. At the same time as the integral molding, the assembly of the upper tank 13 and the lower tank 14 to the core portion 12 may be completed.
　サブラジエータ２１の左側タンク２３（第２左側タンク）を樹脂製とし、係合爪２３ａ（第２係合部）、連結ブラケット２３ｃが左側タンク２３に一体成型されているので、左側タンク２３、係合爪２３ａおよび連結ブラケット２３ｃは一度で成型できるとともに、係合爪２３ａおよび連結ブラケット２３ｃを別途製造したり、別途、左側タンク２３に取り付けたりする必要がなくなることにより、製造工程が簡単になる。 Since the left tank 23 (second left tank) of the sub-radiator 21 is made of resin, and the engaging claw 23a (second engaging portion) and the connecting bracket 23c are integrally formed with the left tank 23, the left tank 23, The joint claw 23a and the connection bracket 23c can be molded at a time, and the manufacturing process is simplified by eliminating the need to separately manufacture the engagement claw 23a and the connection bracket 23c or separately attach them to the left tank 23.
　サブラジエータ２１の右側タンク２４（第２右側タンク）を樹脂製とし、係合爪２４ａ（第２係合部）、連結ブラケット２４ｃが右側タンク２４に一体成型されているので、右側タンク２４、係合爪２４ａおよび連結ブラケット２４ｃは一度で成型できるとともに、係合爪２４ａおよび連結ブラケット２４ｃを別途製造したり、別途、右側タンク２４に取り付けたりする必要がなくなることにより、製造工程が簡単になる。 Since the right tank 24 (second right tank) of the sub-radiator 21 is made of resin, and the engaging claw 24a (second engaging portion) and the connecting bracket 24c are integrally formed with the right tank 24, the right tank 24, The joint claw 24a and the connection bracket 24c can be molded at a time, and the manufacturing process is simplified by eliminating the need to separately manufacture the engagement claw 24a and the connection bracket 24c or separately attaching them to the right tank 24.
　左側タンク２３、係合爪２３ａ、連結ブラケット２３ｃの一体成形を、右側タンク２４、係合爪２４ａ、連結ブラケット２４ｃの一体成形と同時に行っても良い。また、一体成形と同時に、コア部２２への左側タンク２３、右側タンク２４の組み付けが完了するようにしても良い。 The integral formation of the left tank 23, the engagement claw 23a, and the connection bracket 23c may be performed simultaneously with the integral formation of the right tank 24, the engagement claw 24a, and the connection bracket 24c. At the same time as the integral molding, the assembly of the left tank 23 and the right tank 24 to the core portion 22 may be completed.
　サブラジエータ２１の左側タンク２３の中に水冷コンデンサ４１を設けることにより、左側タンク２３内を流れる（コア部２２に流入する前の）第２冷媒と、水冷コンデンサ４１を流れる第３冷媒との間で熱交換が行われ、第３冷媒は水冷コンデンサ４１で冷却された後に空冷コンデンサ３１に流入する。水冷コンデンサ４１から空冷コンデンサ３１に流入する第３冷媒は既に第２冷媒によって冷却されているため、空冷コンデンサ３１で効率よく第３冷媒を冷却することができる。 By providing the water-cooled condenser 41 in the left tank 23 of the sub-radiator 21, between the second refrigerant flowing in the left tank 23 (before entering the core portion 22) and the third refrigerant flowing in the water-cooled condenser 41. The third refrigerant flows through the air-cooled condenser 31 after being cooled by the water-cooled condenser 41. Since the third refrigerant flowing into the air-cooled condenser 31 from the water-cooled condenser 41 is already cooled by the second refrigerant, the third refrigerant can be efficiently cooled by the air-cooled condenser 31.
　サブラジエータ２１（第２熱交換器）の冷媒入口部２３ｂ（第２冷媒入口部）と空冷コンデンサ３１（第３熱交換器）の流入流出タンク３３および流入部３３ａ（第３冷媒入口部）とが左右方向の同じ側に配置されており、サブラジエータ２１の冷媒の流れ方向と、サブラジエータ２１に近接する空冷コンデンサ３１の一部であるところの上側コア部３２ａの、冷媒の流れ方向とが同じ方向になるので、サブラジエータ２１と空冷コンデンサ３１との間の熱影響を最小に抑えることができる。 The refrigerant inlet 23b (second refrigerant inlet) of the sub-radiator 21 (second heat exchanger), the inflow / outflow tank 33 and the inlet 33a (third refrigerant inlet) of the air cooling condenser 31 (third heat exchanger), Are arranged on the same side in the left-right direction, and the flow direction of the refrigerant in the sub-radiator 21 and the flow direction of the refrigerant in the upper core portion 32a that is a part of the air-cooling condenser 31 adjacent to the sub-radiator 21 are Since the directions are the same, the thermal effect between the sub-radiator 21 and the air-cooled condenser 31 can be minimized.
　また、メインラジエータ１１に、エアーガイド１３ｃ，１４ｃ，１５ａ，１５ｂを設けたので、冷却風をメインラジエータ１１等へ効率よく案内して、メインラジエータ１１等で冷媒を効率よく冷却することができる。 Further, since the air guides 13c, 14c, 15a, and 15b are provided in the main radiator 11, the cooling air can be efficiently guided to the main radiator 11 and the refrigerant can be efficiently cooled by the main radiator 11 and the like.
［第２実施形態］
　この発明の第２実施形態である複合型熱交換器を、図６を参照して説明する。 [Second Embodiment]
A composite heat exchanger according to a second embodiment of the present invention will be described with reference to FIG.
　図６に示すように、第２実施形態の複合型熱交換器Ａにおいて、サブラジエータ２１は、第１実施形態の複合型熱交換器Ａが有する左側タンク２３の代わりに、左側タンク２５を有している。この点で、第２実施形態の複合型熱交換器Ａは第１実施形態の複合型熱交換器Ａと異なっている。 As shown in FIG. 6, in the composite heat exchanger A of the second embodiment, the sub-radiator 21 has a left tank 25 instead of the left tank 23 of the composite heat exchanger A of the first embodiment. is doing. In this respect, the composite heat exchanger A of the second embodiment is different from the composite heat exchanger A of the first embodiment.
　サブラジエータ２１は、横長の矩形をしたコア部２２（第２コア部）と、このコア部２２の左右に設けられた左側タンク２５（第２左側タンク）、右側タンク２４（第２右側タンク）とで構成されている。第１実施形態の複合型熱交換器Ａの左側タンク２３の中には、水冷コンデンサ４１が収容されていたが、左側タンク２５には水冷コンデンサが収容されていない。 The sub-radiator 21 includes a horizontally long core portion 22 (second core portion), a left tank 25 (second left tank) and a right tank 24 (second right tank) provided on the left and right sides of the core portion 22. It consists of and. Although the water-cooled condenser 41 is accommodated in the left tank 23 of the composite heat exchanger A of the first embodiment, the water-cooled condenser is not accommodated in the left tank 25.
　左側タンク２５は、樹脂製とされ、左側タンク２５には、メインラジエータ１１の上側タンク１３の左側の係止爪１３ａに係合する係合爪２５ａ（第２係合部）、冷媒入口部２５ｂ（第２冷媒入口部）、左側タンク２５の下端から下側へ延びる、取付孔（図示省略）を有する連結ブラケット２５ｃが一体成型で設けられている。冷媒入口部２５ｂは、例えば、左側タンク２５の上端、またはコア部２２と対向する側の左側タンク２５の側面（左側タンク２５の左側側面）に設けられている。 The left tank 25 is made of resin. The left tank 25 includes an engagement claw 25a (second engagement portion) that engages with a left engagement claw 13a of the upper tank 13 of the main radiator 11, and a refrigerant inlet portion 25b. (Second refrigerant inlet portion) A connection bracket 25c having a mounting hole (not shown) extending downward from the lower end of the left tank 25 is integrally formed. The refrigerant inlet 25b is provided on, for example, the upper end of the left tank 25 or the side surface of the left tank 25 facing the core portion 22 (the left side surface of the left tank 25).
　なお、メインラジエータ１１、空冷コンデンサ３１は、第１実施形態のメインラジエータ１１、空冷コンデンサ３１と同様に構成されている。 The main radiator 11 and the air cooling condenser 31 are configured in the same manner as the main radiator 11 and the air cooling condenser 31 of the first embodiment.
　したがって、第１実施形態の場合と同様に連結熱交換器Ｂを組み立てることができ、この連結熱交換器Ｂをメインラジエータ１１に取り付けることにより、複合型熱交換器Ａとすることができる。 Therefore, the coupled heat exchanger B can be assembled as in the case of the first embodiment, and the combined heat exchanger A can be formed by attaching the coupled heat exchanger B to the main radiator 11.
　この第２実施形態によれば、第１実施形態と同様な効果を得ることができる。 According to the second embodiment, the same effect as that of the first embodiment can be obtained.
［第３実施形態］
　この発明の第３実施形態である複合型熱交換器Ａを、図７を参照して説明する。 [Third Embodiment]
A composite heat exchanger A according to a third embodiment of the present invention will be described with reference to FIG.
　図７に示すように、第３実施形態の複合型熱交換器Ａが第１実施形態の複合型熱交換器Ａと異なるところは、メインラジエータ１１（第１熱交換器）が、横長の矩形をしたコア部１２（第１コア部）と、このコア部１２の左右に設けられた左側タンク１６（第１左側タンク）、右側タンク１７（第１右側タンク）とで構成されているところである。 As shown in FIG. 7, the composite heat exchanger A of the third embodiment is different from the composite heat exchanger A of the first embodiment in that the main radiator 11 (first heat exchanger) is a horizontally long rectangle. The core portion 12 (first core portion) that has been formed, and a left tank 16 (first left tank) and a right tank 17 (first right tank) provided on the left and right sides of the core portion 12 are configured. .
　左側タンク１６は、樹脂製とされ、左側タンク１６（第１左側タンク）には、係止爪１６ａ（被係合部）、冷媒入口部１６ｂ（第１冷媒入口部）、係止孔を有する係止片１６ｃ（被係合部）、エアーガイド１６ｄが一体成型で設けられている。 The left tank 16 is made of resin, and the left tank 16 (first left tank) has a locking claw 16a (an engaged portion), a refrigerant inlet portion 16b (a first refrigerant inlet portion), and a locking hole. A locking piece 16c (a portion to be engaged) and an air guide 16d are provided by integral molding.
　係止爪１６ａ、係止片１６ｃは左側タンク１６（第１左側タンク）に対して冷却風の上流側に設けられている。係止爪１６ａは、左側タンク１６の上側に設けられており、一方、係止片１６ｃは、左側タンク１６の下側に設けられている。冷媒入口部１６ｂは、左側タンク１６に対して冷却風の下流側に突出するように設けられている。もちろん、冷媒入口部１６ｂは、左側タンク１６の側面へ突出するように設けてもよい。板状のエアーガイド１６ｄは、左側タンク１６の上流側に位置して上下方向に延びて設けられている。 The locking claw 16a and the locking piece 16c are provided on the upstream side of the cooling air with respect to the left tank 16 (first left tank). The locking claw 16 a is provided on the upper side of the left tank 16, while the locking piece 16 c is provided on the lower side of the left tank 16. The refrigerant inlet 16b is provided so as to protrude to the downstream side of the cooling air with respect to the left tank 16. Of course, the refrigerant inlet portion 16 b may be provided so as to protrude to the side surface of the left tank 16. The plate-shaped air guide 16d is provided on the upstream side of the left tank 16 and extends in the vertical direction.
　右側タンク１７は、樹脂製とされ、右側タンク１７には、係止爪１７ａ（被係合部）、冷媒出口部１７ｂ（第１冷媒出口部）、係止孔を有する係止片１７ｃ（被係合部）、エアーガイド１７ｄが一体成型で設けられている。 The right tank 17 is made of resin. The right tank 17 includes a locking claw 17a (engaged portion), a refrigerant outlet portion 17b (first refrigerant outlet portion), and a locking piece 17c (covered) having a locking hole. Engaging portion) and an air guide 17d are integrally formed.
　係止爪１７ａ、係止片１７ｃは右側タンク１７に対して冷却風の上流側に設けられている。係止爪１７ａは、右側タンク１７の上側に設けられており、一方、係止片１７ｃは、右側タンク１７の下側に設けられている。冷媒出口部１７ｂは、右側タンク１７に対して冷却風の下流側に突出するように設けられている。もちろん、冷媒出口部１７ｂは、右側タンク１７の側面へ突出するように設けてもよい。板状のエアーガイド１７ｄは、右側タンク１７の上流側に位置して上下方向に延びて設けられている。 The locking claw 17a and the locking piece 17c are provided on the upstream side of the cooling air with respect to the right tank 17. The locking claw 17 a is provided on the upper side of the right tank 17, while the locking piece 17 c is provided on the lower side of the right tank 17. The refrigerant outlet portion 17b is provided so as to protrude to the downstream side of the cooling air with respect to the right tank 17. Of course, the refrigerant outlet portion 17 b may be provided so as to protrude to the side surface of the right tank 17. The plate-shaped air guide 17d is provided on the upstream side of the right tank 17 and extends in the vertical direction.
　そして、コア部１２の上端に、上方へ延びるとともに、左右方向へ延びた板状のエアーガイド１８ａと、コア部１２の下端に、上流側（風上側、前方）に延びるとともに、左右方向へ延びた板状のエアーガイド１８ｂとが設けられている。 A plate-like air guide 18a that extends upward at the upper end of the core portion 12 and extends in the left-right direction, and extends upstream (windward, forward) and at the lower end of the core portion 12 in the left-right direction. A plate-shaped air guide 18b is provided.
　なお、エアーガイド１６ｄ，１７ｄは、連結熱交換器Ｂが配置される側に向けて延びており、エアーガイド１６ｄ，１７ｄの幅（上下方向の長さ）は、連結熱交換器Ｂの幅よりも大きい方が望ましい。 The air guides 16d and 17d extend toward the side where the coupled heat exchanger B is disposed, and the width (length in the vertical direction) of the air guides 16d and 17d is greater than the width of the coupled heat exchanger B. The larger one is desirable.
　このメインラジエータ１１において、左側タンク１６の冷媒入口部１６ｂから流入した第１冷媒は、左側タンク１６、コア部１２、右側タンク１７の順に経由して流れた後、冷媒出口部１７ｂから流出する。メインラジエータ１１内を第１冷媒が流れる過程のうち、コア部１２を第１冷媒が流れる際に、第１冷媒と冷却風との間で、熱交換が行われる。 In the main radiator 11, the first refrigerant flowing from the refrigerant inlet 16b of the left tank 16 flows through the left tank 16, the core 12, and the right tank 17 in this order, and then flows out from the refrigerant outlet 17b. Among the processes in which the first refrigerant flows through the main radiator 11, when the first refrigerant flows through the core portion 12, heat exchange is performed between the first refrigerant and the cooling air.
　サブラジエータ２１、空冷コンデンサ３１、水冷コンデンサ４１、連結熱交換器Ｂは、第１実施形態と同様に構成、配置されている。 The sub-radiator 21, the air-cooled condenser 31, the water-cooled condenser 41, and the coupled heat exchanger B are configured and arranged in the same manner as in the first embodiment.
　したがって、第１実施形態の場合と同様に連結熱交換器Ｂを組み立てることができ、この連結熱交換器Ｂをメインラジエータ１１に取り付けることにより、複合型熱交換器Ａとすることができる。 Therefore, the coupled heat exchanger B can be assembled as in the case of the first embodiment, and the combined heat exchanger A can be formed by attaching the coupled heat exchanger B to the main radiator 11.
　この第３実施形態によれば、サブラジエータ２１（第２熱交換器）の左側タンク２３（第２左側タンク）、右側タンク２４（第２右側タンク）を、それぞれメインラジエータ１１（第１熱交換器）の左側タンク１６（第１左側タンク）、右側タンク１７（第１右側タンク）に取り付けるとともに、空冷コンデンサ３１（第３熱交換器）の流入流出タンク３３（第３左側タンク）、流出流入タンク３４（第３右側タンク）を、それぞれメインラジエータ１１の左側タンク１６、右側タンク１７に取り付けることにより、連結熱交換器Ｂをメインラジエータ１１に取り付けている。すなわち、メインラジエータ１１にサブラジエータ２１および空冷コンデンサ３１を一体的に取り付けたので、レイアウト性がよくなり、配置スペース（取付スペース）を小さくすることが可能になるとともに、車体への取付を簡単に行うことができる。 According to the third embodiment, the left tank 23 (second left tank) and the right tank 24 (second right tank) of the sub-radiator 21 (second heat exchanger) are respectively connected to the main radiator 11 (first heat exchange). Are attached to the left tank 16 (first left tank) and the right tank 17 (first right tank), and the inflow / outflow tank 33 (third left tank) of the air-cooled condenser 31 (third heat exchanger). The connected heat exchanger B is attached to the main radiator 11 by attaching the tank 34 (third right tank) to the left tank 16 and the right tank 17 of the main radiator 11, respectively. That is, since the sub-radiator 21 and the air-cooled condenser 31 are integrally attached to the main radiator 11, the layout is improved, the arrangement space (attachment space) can be reduced, and the attachment to the vehicle body is easy. It can be carried out.
　サブラジエータ２１（第２熱交換器）の係合爪２３ａ，２４ａ（第２係合部）および空冷コンデンサ３１（第３熱交換器）の係合片３３ｃ，３４ｃ（第３係合部）を、メインラジエータ１１（第１熱交換器）に設けられた被係合部である係止爪１６ａ，１７ａ、係止片１６ｃ，１７ｃに係合させることによって連結熱交換器Ｂをメインラジエータ１１に取り付けることができるので、メインラジエータ１１への連結熱交換器Ｂの取付を簡単に行うことができる。 The engaging claws 23a, 24a (second engaging portion) of the sub radiator 21 (second heat exchanger) and the engaging pieces 33c, 34c (third engaging portion) of the air cooling condenser 31 (third heat exchanger) are connected. The coupled heat exchanger B is connected to the main radiator 11 by engaging the engaging claws 16a and 17a and the engaging pieces 16c and 17c which are engaged portions provided in the main radiator 11 (first heat exchanger). Since it can attach, the attachment of the connection heat exchanger B to the main radiator 11 can be performed easily.
　メインラジエータ１１の左側タンク１６（第１左側タンク）を樹脂製とし、被係合部である係止爪１６ａ、係止片１６ｃ、およびエアーガイド１６ｄが左側タンク１６に一体成型されているので、左側タンク１６、係止爪１６ａ、係止片１６ｃおよびエアーガイド１６ｄは一度で成型できるとともに、係止爪１６ａ、係止片１６ｃおよびエアーガイド１６ｄを別途製造したり、別途、左側タンク１６に取り付けたりする必要がなくなることにより、製造工程が簡単になる。 Since the left tank 16 (first left tank) of the main radiator 11 is made of resin, the engaging claw 16a, the engaging piece 16c, and the air guide 16d, which are engaged parts, are integrally formed in the left tank 16, The left tank 16, the locking claw 16 a, the locking piece 16 c and the air guide 16 d can be molded at once, and the locking claw 16 a, the locking piece 16 c and the air guide 16 d can be separately manufactured or separately attached to the left tank 16. The manufacturing process is simplified.
　メインラジエータ１１の右側タンク１７（第１右側タンク）を樹脂製とし、被係合部である係止爪１７ａ、係止片１７ｃ、およびエアーガイド１７ｄが右側タンク１７に一体成型されているので、右側タンク１７、係止爪１７ａ、係止片１７ｃおよびエアーガイド１７ｄは一度で成型できるとともに、係止爪１７ａ、係止片１７ｃおよびエアーガイド１７ｄを別途製造したり、別途、右側タンク１７に取り付けたりする必要がなくなることにより、製造工程が簡単になる。 Since the right tank 17 (first right tank) of the main radiator 11 is made of resin, the engaging claw 17a, the engaging piece 17c, and the air guide 17d, which are engaged parts, are integrally formed in the right tank 17, The right tank 17, the locking claw 17a, the locking piece 17c, and the air guide 17d can be molded at once, and the locking claw 17a, the locking piece 17c, and the air guide 17d are separately manufactured or separately attached to the right tank 17. The manufacturing process is simplified.
　左側タンク１６、係止爪１６ａ、係止片１６ｃ、エアーガイド１６ｄの一体成型を、右側タンク１７、係止爪１７ａ、係止片１７ｃ、エアーガイド１７ｄの一体成型と同時に行っても良い。また、一体成形と同時に、コア部１２への左側タンク１６、右側タンク１７の組み付けが完了するようにしても良い。 Integral molding of the left tank 16, the locking claw 16a, the locking piece 16c, and the air guide 16d may be performed simultaneously with the integral molding of the right tank 17, the locking claw 17a, the locking piece 17c, and the air guide 17d. At the same time as the integral molding, the assembly of the left tank 16 and the right tank 17 to the core portion 12 may be completed.
　サブラジエータ２１の左側タンク２３（第２左側タンク）を樹脂製とし、係合爪２３ａ（第２係合部）、連結ブラケット２３ｃが左側タンク２３に一体成型されているので、左側タンク２３、係合爪２３ａおよび連結ブラケット２３ｃは一度で成型できるとともに、係合爪２３ａおよび連結ブラケット２３ｃを別途製造したり、別途、左側タンク２３に取り付けたりする必要がなくなることにより、製造工程が簡単になる。 Since the left tank 23 (second left tank) of the sub-radiator 21 is made of resin, and the engaging claw 23a (second engaging portion) and the connecting bracket 23c are integrally formed with the left tank 23, the left tank 23, The joint claw 23a and the connection bracket 23c can be molded at a time, and the manufacturing process is simplified by eliminating the need to separately manufacture the engagement claw 23a and the connection bracket 23c or separately attach them to the left tank 23.
　サブラジエータ２１の右側タンク２４（第２右側タンク）を樹脂製とし、係合爪２４ａ（第２係合部）、連結ブラケット２４ｃが右側タンク２４に一体成型されているので、右側タンク２４、係合爪２４ａおよび連結ブラケット２４ｃは一度で成型できるとともに、係合爪２４ａおよび連結ブラケット２４ｃを別途製造したり、別途、右側タンク２４に取り付けたりする必要がなくなることにより、製造工程が簡単になる。 Since the right tank 24 (second right tank) of the sub-radiator 21 is made of resin, and the engaging claw 24a (second engaging portion) and the connecting bracket 24c are integrally formed with the right tank 24, the right tank 24, The joint claw 24a and the connection bracket 24c can be molded at a time, and the manufacturing process is simplified by eliminating the need to separately manufacture the engagement claw 24a and the connection bracket 24c or separately attaching them to the right tank 24.
　左側タンク２３、係合爪２３ａ、連結ブラケット２３ｃの一体成形を、右側タンク２４、係合爪２４ａ、連結ブラケット２４ｃの一体成形と同時に行っても良い。また、一体成形と同時に、コア部２２への左側タンク２３、右側タンク２４の組み付けが完了するようにしても良い。 The integral formation of the left tank 23, the engagement claw 23a, and the connection bracket 23c may be performed simultaneously with the integral formation of the right tank 24, the engagement claw 24a, and the connection bracket 24c. At the same time as the integral molding, the assembly of the left tank 23 and the right tank 24 to the core portion 22 may be completed.
　サブラジエータ２１の左側タンク２３の中に水冷コンデンサ４１を設けることにより、左側タンク２３内を流れる（コア部２２に流入する前の）第２冷媒と、水冷コンデンサ４１を流れる第３冷媒との間で熱交換が行われ、第３冷媒は水冷コンデンサ４１で冷却された後に空冷コンデンサ３１に流入する。水冷コンデンサ４１から空冷コンデンサ３１に流入する第３冷媒は既に第２冷媒によって冷却されているため、空冷コンデンサ３１で効率よく第３冷媒を冷却することができる。 By providing the water-cooled condenser 41 in the left tank 23 of the sub-radiator 21, between the second refrigerant flowing in the left tank 23 (before entering the core portion 22) and the third refrigerant flowing in the water-cooled condenser 41. The third refrigerant flows through the air-cooled condenser 31 after being cooled by the water-cooled condenser 41. Since the third refrigerant flowing into the air-cooled condenser 31 from the water-cooled condenser 41 is already cooled by the second refrigerant, the third refrigerant can be efficiently cooled by the air-cooled condenser 31.
　サブラジエータ２１の冷媒入口部２３ｂと空冷コンデンサ３１の流入流出タンク３３（流入部３３ａ）とが左右方向の同じ側に配置されており、サブラジエータ２１の冷媒の流れ方向と、サブラジエータ２１に近接する空冷コンデンサ３１の一部であるところの上側コア部３２ａの、冷媒の流れ方向とが同じ方向になるので、サブラジエータ２１と空冷コンデンサ３１との間の熱影響を最小に抑えることができる。 The refrigerant inlet portion 23b of the sub radiator 21 and the inflow / outflow tank 33 (inflow portion 33a) of the air-cooling condenser 31 are disposed on the same side in the left-right direction, and the refrigerant flow direction of the sub radiator 21 and the proximity of the sub radiator 21 are close to each other. Since the upper core portion 32a that is a part of the air-cooling condenser 31 is in the same direction as the refrigerant flow direction, the thermal influence between the sub-radiator 21 and the air-cooling condenser 31 can be minimized.
　メインラジエータ１１の冷媒入口部１６ｂとサブラジエータ２１の冷媒入口部２３ｂとが左右方向の同じ側に配置されており、メインラジエータ１１の冷媒の流れ方向と、メインラジエータ１１に近接するサブラジエータ２１の冷媒の流れ方向とが同じ方向になるので、メインラジエータ１１とサブラジエータ２１との熱影響を最小に抑えることができる。 The refrigerant inlet portion 16b of the main radiator 11 and the refrigerant inlet portion 23b of the sub radiator 21 are arranged on the same side in the left-right direction, and the refrigerant flowing direction of the main radiator 11 and the sub radiator 21 adjacent to the main radiator 11 are arranged. Since the flow direction of the refrigerant is the same direction, the thermal effect of the main radiator 11 and the sub radiator 21 can be minimized.
　また、空冷コンデンサ３１の流入流出タンク３３（流入部３３ａ）、メインラジエータ１１の冷媒入口部１６ｂ、サブラジエータ２１の冷媒入口部２３ｂが左右方向の同じ側に配置されており、メインラジエータ１１の冷媒の流れ方向と、メインラジエータ１１に近接するサブラジエータ２１の冷媒の流れ方向と、空冷コンデンサ３１の上側コア部３２ａの冷媒の流れ方向とが同じ方向になる。そのためメインラジエータ１１とサブラジエータ２１と空冷コンデンサ３１との熱影響を最小に抑えることができる。 An inflow / outflow tank 33 (inflow portion 33 a) of the air-cooling condenser 31, a refrigerant inlet portion 16 b of the main radiator 11, and a refrigerant inlet portion 23 b of the sub-radiator 21 are arranged on the same side in the left-right direction, and the refrigerant of the main radiator 11 The flow direction of the refrigerant, the flow direction of the refrigerant in the sub radiator 21 adjacent to the main radiator 11, and the flow direction of the refrigerant in the upper core portion 32a of the air-cooled condenser 31 are the same direction. Therefore, the thermal effects of the main radiator 11, the sub radiator 21, and the air cooling condenser 31 can be minimized.
　また、メインラジエータ１１に、エアーガイド１６ｄ，１７ｄ，１８ａ，１８ｂを設けたので、冷却風をメインラジエータ１１等へ効率よく案内して、メインラジエータ１１等で冷媒を効率よく冷却することができる。 Further, since the air guides 16d, 17d, 18a, and 18b are provided on the main radiator 11, the cooling air can be efficiently guided to the main radiator 11 and the refrigerant can be efficiently cooled by the main radiator 11 and the like.
［第４実施形態］
　この発明の第４実施形態である複合型熱交換器Ａを、図８を参照して説明する。 [Fourth Embodiment]
A composite heat exchanger A according to a fourth embodiment of the present invention will be described with reference to FIG.
　第４実施形態の複合型熱交換器Ａが第３実施形態の複合型熱交換器Ａと異なるところは、連結熱交換器Ｂが第２実施形態の連結熱交換器Ｂであるところである。 The difference between the composite heat exchanger A of the fourth embodiment and the composite heat exchanger A of the third embodiment is that the connected heat exchanger B is the connected heat exchanger B of the second embodiment.
　したがって、第３実施形態の場合と同様に連結熱交換器Ｂを組み立てることができ、この連結熱交換器Ｂをメインラジエータ１１に取り付けることにより、複合型熱交換器Ａとすることができる。 Therefore, the coupled heat exchanger B can be assembled as in the case of the third embodiment, and the combined heat exchanger A can be obtained by attaching the coupled heat exchanger B to the main radiator 11.
　この第４実施形態によれば、第３実施形態と同様な効果を得ることができる。 According to the fourth embodiment, the same effect as that of the third embodiment can be obtained.
　上記実施形態において、エアーガイド１３ｃ，１４ｃをそれぞれ上側タンク１３、下側タンク１４に一体成型で設け、エアーガイド１６ｄ，１７ｄをそれぞれ左側タンク１６、右側タンク１７に一体成型で設ける例を示したが、エアーガイドは上側タンク１３、下側タンク１４、左側タンク１６、右側タンク１７と別体であってもよい。 In the above embodiment, the air guides 13c and 14c are integrally formed in the upper tank 13 and the lower tank 14, respectively, and the air guides 16d and 17d are integrally formed in the left tank 16 and the right tank 17, respectively. The air guide may be a separate body from the upper tank 13, the lower tank 14, the left tank 16, and the right tank 17.
　また、サブラジエータ２１を上側に配置し、空冷コンデンサ３１を下側に配置した連結熱交換器Ｂの例を示したが、サブラジエータを下側に配置し、空冷コンデンサを上側に配置した連結熱交換器であってもよい。 Moreover, although the example of the connection heat exchanger B which has arrange | positioned the sub radiator 21 on the upper side and has arrange | positioned the air-cooling condenser 31 to the lower side was shown, the connection heat which has arrange | positioned the sub radiator on the lower side and has arranged the air-cooling condenser on the upper side It may be an exchanger.
　この場合、上側に配置する空冷コンデンサとサブラジエータの間の熱影響を抑えるために、サブラジエータを流れる第２冷媒の流れ方向と、空冷コンデンサを流れる第３冷媒の流れ方向とが同じ方向にすることが望ましい。例えば、空冷コンデンサにおいて、コア部の左右に第３左側タンク、第３右側タンクを設け、第３冷媒が第３左側タンク、コア部、第３右側タンクへと流れるようにすることが望ましい。 In this case, the flow direction of the second refrigerant flowing through the sub-radiator and the flow direction of the third refrigerant flowing through the air-cooling condenser are set in the same direction in order to suppress the thermal influence between the air-cooling condenser and the sub-radiator disposed on the upper side. It is desirable. For example, in the air-cooled condenser, it is desirable to provide a third left tank and a third right tank on the left and right sides of the core part so that the third refrigerant flows to the third left tank, the core part, and the third right tank.
　また、被係合部を係止爪１３ａ，１６ａ，１７ａまたは係止片１４ａ，１６ｃ，１７ｃとし、係合部を係合爪２３ａ，２４ａまたは係合片３３ｃ，３４ｃとした例を示したが、係止爪（被係合部）に係合棒（係合部）または係合ブラケット（係合部）が係合させる構成であってもよい。 Moreover, although the to-be-engaged part was made into locking claw 13a, 16a, 17a or locking piece 14a, 16c, 17c, and the engaging part was made into engaging claw 23a, 24a or engaging piece 33c, 34c, the example was shown. The engaging claw (engaged portion) may be engaged with an engaging rod (engaging portion) or an engaging bracket (engaging portion).
　また、サブラジエータ２１の左側タンク２３内に水冷コンデンサ４１を設けた例を示したが、サブラジエータの右側タンク内に水冷コンデンサを設けてもよい。 Further, although an example in which the water cooling condenser 41 is provided in the left tank 23 of the sub radiator 21 is shown, a water cooling condenser may be provided in the right tank of the sub radiator.
　また、第３実施形態および第４実施形態において、サブラジエータ２１と空冷コンデンサ３１とを組み合わせて連結熱交換器Ｂとした後に、連結熱交換器Ｂをメインラジエータ１１に取り付けたが、サブラジエータ２１と空冷コンデンサ３１とを連結熱交換器Ｂとせずに、すなわち、サブラジエータ２１と空冷コンデンサ３１とを上述した係止爪または係合片などの係止部材によって、別々にメインラジエータ１１に取り付けてもよい。 Moreover, in 3rd Embodiment and 4th Embodiment, after combining the sub radiator 21 and the air-cooled condenser 31 into the connection heat exchanger B, the connection heat exchanger B was attached to the main radiator 11, but the sub radiator 21 And the air cooling condenser 31 are not connected to the heat exchanger B, that is, the sub radiator 21 and the air cooling condenser 31 are separately attached to the main radiator 11 by the engaging members such as the engaging claws or engaging pieces described above. Also good.
　以上、本発明の実施形態について説明したが、これらの実施形態は本発明の理解を容易にするために記載された単なる例示に過ぎず、本発明は当該実施形態に限定されるものではない。本発明の技術的範囲は、上記実施形態で開示した具体的な技術事項に限らず、そこから容易に導きうる様々な変形、変更、代替技術なども含むものである。 As mentioned above, although embodiment of this invention was described, these embodiment is only the mere illustration described in order to make an understanding of this invention easy, and this invention is not limited to the said embodiment. The technical scope of the present invention is not limited to the specific technical matters disclosed in the above-described embodiment, but includes various modifications, changes, alternative techniques, and the like that can be easily derived therefrom.
　本出願は、２０１３年６月７日に出願された日本国特許願第２０１３－１２０４９１号に基づく優先権、及び２０１３年６月１０日に出願された日本国特許願第２０１３－１２１４７７号に基づく優先権を主張しており、この２つの出願の全内容が参照により本明細書に組み込まれる。 This application is based on priority based on Japanese Patent Application No. 2013-120491 filed on June 7, 2013 and on Japanese Patent Application No. 2013-121477 filed on June 10, 2013. All of the contents of the two applications are hereby incorporated by reference.
　この発明の複合型熱交換器によれば、第２熱交換器と第３熱交換器とを上下に位置させて連結した連結熱交換器が第１熱交換器に一体的に取り付けられているので、レイアウト性がよくなり、配置スペース（取付スペース）を小さくすることが可能になるとともに、車体への取付を簡単に行うことができる。 According to the composite heat exchanger of the present invention, the connected heat exchanger in which the second heat exchanger and the third heat exchanger are connected in the up-down position is integrally attached to the first heat exchanger. Therefore, the layout is improved, the arrangement space (attachment space) can be reduced, and the attachment to the vehicle body can be easily performed.
Ａ　　複合型熱交換器
Ｂ　　連結熱交換器
１１　　メインラジエータ（第１熱交換器）
１２　　コア部（第１コア部）
１３　　上側タンク（第１上側タンク）
１３ａ　　係止爪（被係合部）
１３ｂ　　冷媒入口部（第１冷媒入口部）
１３ｃ　　エアーガイド
１４　　下側タンク（第１下側タンク）
１４ａ　　係止片（被係合部）
１４ｂ　　冷媒出口部（第１冷媒出口部）
１４ｃ　　エアーガイド
１５ａ　　エアーガイド
１５ｄ　　エアーガイド
１６　　左側タンク（第１左側タンク）
１６ａ　　係止爪（被係合部）
１６ｂ　　冷媒入口部（第１冷媒入口部）
１６ｃ　　係止片（被係合部）
１６ｄ　　エアーガイド
１７　　右側タンク（第１右側タンク）
１７ａ　　係止爪（被係合部）
１７ｂ　　冷媒出口部（第１冷媒出口部）
１７ｃ　　係止片（被係合部）
１７ｄ　　エアーガイド
１８ａ　　エアーガイド
１８ｂ　　エアーガイド
２１　　サブラジエータ（第２熱交換器）
２２　　コア部（第２コア部）
２３　　左側タンク（第２左側タンク）
２３ａ　　係合爪（第２係合部）
２３ｂ　　冷媒入口部（第２冷媒入口部）
２３ｃ　　連結ブラケット
２３ｄ　　取付孔
２４　　右側タンク（第２右側タンク）
２４ａ　　係合爪（第２係合部）
２４ｂ　　冷媒出口部（第２冷媒出口部）
２４ｃ　　連結ブラケット
２４ｄ　　取付孔
２５　　左側タンク（第２左側タンク）
２５ａ　　係合爪（第２係合部）
２５ｂ　　冷媒入口部（第２冷媒入口部）
２５ｃ　　連結ブラケット
３１　　空冷コンデンサ（第３熱交換器）
３２　　コア部（第３コア部）
３２ａ　　上側コア部
３２ｂ　　下側コア部
３３　　流入流出タンク（左側タンク、第３左側タンク）
３３ａ　　流入部（第３冷媒入口部）
３３ｂ　　流出部（第３冷媒出口部）
３３ｃ　　係合片（第３係合部）
３４　　流出流入タンク（右側タンク、第３右側タンク）
３４ａ　　流出部
３４ｂ　　流入部
３４ｃ　　係合片（第３係合部）
４１　　水冷コンデンサ（第４熱交換器）
５１　　配管
６１　　リキッドタンク A Combined heat exchanger B Linked heat exchanger 11 Main radiator (first heat exchanger)
12 Core part (first core part)
13 Upper tank (first upper tank)
13a Locking claw (engaged part)
13b Refrigerant inlet (first refrigerant inlet)
13c Air guide 14 Lower tank (first lower tank)
14a Locking piece (engaged part)
14b Refrigerant outlet (first refrigerant outlet)
14c Air guide 15a Air guide 15d Air guide 16 Left tank (first left tank)
16a Locking claw (engaged part)
16b Refrigerant inlet (first refrigerant inlet)
16c Locking piece (engaged part)
16d Air guide 17 Right tank (first right tank)
17a Locking claw (engaged part)
17b Refrigerant outlet (first refrigerant outlet)
17c Locking piece (engaged part)
17d Air guide 18a Air guide 18b Air guide 21 Sub-radiator (second heat exchanger)
22 Core part (second core part)
23 Left tank (second left tank)
23a engagement claw (second engagement portion)
23b Refrigerant inlet (second refrigerant inlet)
23c Connecting bracket 23d Mounting hole 24 Right tank (second right tank)
24a engaging claw (second engaging portion)
24b Refrigerant outlet (second refrigerant outlet)
24c Connecting bracket 24d Mounting hole 25 Left tank (second left tank)
25a engaging claw (second engaging portion)
25b Refrigerant inlet (second refrigerant inlet)
25c Connecting bracket 31 Air-cooled condenser (third heat exchanger)
32 Core part (third core part)
32a Upper core portion 32b Lower core portion 33 Inflow / outflow tank (left tank, third left tank)
33a Inflow part (third refrigerant inlet part)
33b Outflow part (third refrigerant outlet part)
33c engagement piece (3rd engagement part)
34 Outflow inflow tank (Right side tank, 3rd right side tank)
34a Outflow part 34b Inflow part 34c Engagement piece (3rd engagement part)
41 Water-cooled condenser (4th heat exchanger)
51 Piping 61 Liquid tank

Claims (14)

  1. 　第１冷媒と冷却風との間で熱交換する第１熱交換器と、
    　第２冷媒と前記冷却風との間で熱交換する第２熱交換器と、
    　第３冷媒と前記冷却風との間で熱交換する第３熱交換器と、
    　を備える複合型熱交換器であって、
    　前記第２熱交換器と前記第３熱交換器とを略同一平面上で上下に配置して連結した連結熱交換器が、前記第１熱交換器に対して前記冷却風の上流側に配置されて前記第１熱交換器に一体的に取り付けられること
    　を特徴とする複合型熱交換器。     A first heat exchanger that exchanges heat between the first refrigerant and the cooling air;
    A second heat exchanger for exchanging heat between the second refrigerant and the cooling air;
    A third heat exchanger for exchanging heat between the third refrigerant and the cooling air;
    A combined heat exchanger comprising:
    A connected heat exchanger in which the second heat exchanger and the third heat exchanger are arranged up and down on substantially the same plane and connected is arranged upstream of the cooling air with respect to the first heat exchanger And is integrally attached to the first heat exchanger.
  2. 　請求項１に記載の複合型熱交換器であって、
    　前記第１熱交換器は、第１コア部と、前記第１コア部の上側および下側にそれぞれ配置された第１上側タンクおよび第１下側タンクと、を有し、
    　前記第２熱交換器は、第２コア部と、前記第２コア部の左側および右側にそれぞれ配置された第２左側タンクおよび第２右側タンクと、を有し、
    　前記第３熱交換器は、第３コア部と、前記第３コア部の左側および右側にそれぞれ配置された第３左側タンクおよび第３右側タンクと、を有し、
    　前記連結熱交換器は、
    　　前記第１上側タンクまたは前記第１下側タンクの一方に、前記第２左側タンクと前記第２右側タンクとを取り付け、
    　　前記第１上側タンクまたは前記第１下側タンクの他方に、前記第３左側タンクと前記第３右側タンクとを取り付ける
    　ことにより、前記第１熱交換器に取り付けられていること、
    　を特徴とする複合型熱交換器。     The composite heat exchanger according to claim 1,
    The first heat exchanger includes a first core part, and a first upper tank and a first lower tank respectively disposed on the upper side and the lower side of the first core part,
    The second heat exchanger includes a second core part, and a second left tank and a second right tank respectively disposed on the left and right sides of the second core part,
    The third heat exchanger includes a third core part, and a third left tank and a third right tank respectively disposed on the left side and the right side of the third core part,
    The connected heat exchanger is
    The second left tank and the second right tank are attached to one of the first upper tank or the first lower tank,
    Attaching to the first heat exchanger by attaching the third left side tank and the third right side tank to the other of the first upper tank or the first lower tank;
    A combined heat exchanger.
  3. 　請求項２に記載の複合型熱交換器であって、
    　前記第１上側タンクと前記第１下側タンクのそれぞれに、被係合部が設けられ、
    　前記第２左側タンクと前記第２右側タンクのそれぞれに、前記被係合部に対応する第２係合部が設けられ、
    　前記第３左側タンクと前記第３右側タンクのそれぞれに、前記被係合部に対応する第３係合部が設けられ、
    　前記第２係合部と前記第３係合部とを前記被係合部に係合させることにより、前記連結熱交換器は前記第１熱交換器に取り付けられること、
    　を特徴とする複合型熱交換器。     The composite heat exchanger according to claim 2,
    An engaged portion is provided in each of the first upper tank and the first lower tank,
    A second engagement portion corresponding to the engaged portion is provided in each of the second left tank and the second right tank,
    A third engagement portion corresponding to the engaged portion is provided in each of the third left tank and the third right tank,
    The coupled heat exchanger is attached to the first heat exchanger by engaging the second engaging portion and the third engaging portion with the engaged portion;
    A combined heat exchanger.
  4. 　請求項３に記載の複合型熱交換器であって、
    　前記第１上側タンクおよび前記第１下側タンクは樹脂製とされ、
    　前記被係合部が、前記第１上側タンク、前記第１下側タンクに一体成型されていることを特徴とする複合型熱交換器。     A composite heat exchanger according to claim 3,
    The first upper tank and the first lower tank are made of resin,
    The composite heat exchanger, wherein the engaged portion is integrally formed with the first upper tank and the first lower tank.
  5. 　請求項３または請求項４に記載の複合型熱交換器であって、
    　前記第２左側タンクおよび前記第２右側タンクは樹脂製とされ、
    　前記第２係合部が、前記第２左側タンク、前記第２右側タンクに一体成型されていることを特徴とする複合型熱交換器。     The composite heat exchanger according to claim 3 or 4, wherein
    The second left tank and the second right tank are made of resin,
    The composite heat exchanger, wherein the second engaging portion is integrally formed with the second left tank and the second right tank.
  6. 　請求項２～請求項５のいずれか１項に記載の複合型熱交換器であって、
    　前記第２左側タンクまたは前記第２右側タンクの中に第４熱交換器を設け、
    　前記第４熱交換器は、前記第２コア部に流入する前の前記第２冷媒と、前記第３冷媒との間で熱交換を行い、
    　前記第４熱交換器から流出した前記第３冷媒は、前記第３熱交換器に流入することを特徴とする複合型熱交換器。     A composite heat exchanger according to any one of claims 2 to 5,
    A fourth heat exchanger is provided in the second left tank or the second right tank,
    The fourth heat exchanger performs heat exchange between the second refrigerant and the third refrigerant before flowing into the second core part,
    The composite heat exchanger, wherein the third refrigerant that has flowed out of the fourth heat exchanger flows into the third heat exchanger.
  7. 　請求項１～請求項６のいずれか１項に記載の複合型熱交換器であって、
    　前記第２熱交換器の第２冷媒入口部と、前記第３熱交換器の第３冷媒入口部とは、左右の同じ側に配置されていること
    　を特徴とする複合型熱交換器。     The composite heat exchanger according to any one of claims 1 to 6,
    The composite heat exchanger, wherein the second refrigerant inlet portion of the second heat exchanger and the third refrigerant inlet portion of the third heat exchanger are arranged on the same side of the left and right.
  8. 　請求項１に記載の複合型熱交換器であって、
    　前記第１熱交換器は、第１コア部と、前記第１コア部の左側および右側にそれぞれ配置された第１左側タンクおよび第１右側タンクと、を有し、
    　前記第２熱交換器は、第２コア部と、前記第２コア部の左側および右側にそれぞれ配置された第２左側タンクおよび第２右側タンクと、を有し、
    　前記第３熱交換器は、第３コア部と、前記第３コア部の左側および右側にそれぞれ配置された第３左側タンクおよび第３右側タンクと、を有し、
    　前記連結熱交換器は、
    　　前記第１左側タンクに、前記第２左側タンクと前記第３左側タンクを取り付け、
    　　前記第１右側タンクに、前記第２右側タンクと前記第３右側タンクを取り付けることにより、前記第１熱交換器に取り付けられていること、
    　を特徴とする複合型熱交換器。     The composite heat exchanger according to claim 1,
    The first heat exchanger includes a first core part, and a first left tank and a first right tank respectively disposed on the left side and the right side of the first core part,
    The second heat exchanger includes a second core part, and a second left tank and a second right tank respectively disposed on the left and right sides of the second core part,
    The third heat exchanger includes a third core part, and a third left tank and a third right tank respectively disposed on the left side and the right side of the third core part,
    The connected heat exchanger is
    The second left tank and the third left tank are attached to the first left tank,
    The first right tank is attached to the first heat exchanger by attaching the second right tank and the third right tank.
    A combined heat exchanger.
  9. 　請求項８に記載の複合型熱交換器であって、
    　前記第１左側タンクと前記第１右側タンクのそれぞれに、被係合部が設けられ、
    　前記第２左側タンクと前記第２右側タンクのそれぞれに、前記被係合部に対応する第２係合部が設けられ、
    　前記第３左側タンクと前記第３右側タンクのそれぞれに、前記被係合部に対応する第３係合部が設けられ、
    　前記第２係合部と前記第３係合部とを前記被係合部に係合させることにより、前記連結熱交換器は前記第１熱交換器に取り付けられること、
    　を特徴とする複合型熱交換器。     The composite heat exchanger according to claim 8,
    An engaged portion is provided in each of the first left tank and the first right tank,
    A second engagement portion corresponding to the engaged portion is provided in each of the second left tank and the second right tank,
    A third engagement portion corresponding to the engaged portion is provided in each of the third left tank and the third right tank,
    The coupled heat exchanger is attached to the first heat exchanger by engaging the second engaging portion and the third engaging portion with the engaged portion;
    A combined heat exchanger.
  10. 　請求項９に記載の複合型熱交換器であって、
    　前記第１左側タンクおよび前記第１右側タンクは樹脂製とされ、
    　前記被係合部が、前記第１左側タンク、前記第１右側タンクに一体成型されていることを特徴とする複合型熱交換器。     The composite heat exchanger according to claim 9,
    The first left tank and the first right tank are made of resin,
    The composite heat exchanger, wherein the engaged portion is integrally formed with the first left tank and the first right tank.
  11. 　請求項９または請求項１０に記載の複合型熱交換器であって、
    　前記第２左側タンクおよび前記第２右側タンクは樹脂製とされ、
    　前記第２係合部が、前記第２左側タンク、前記第２右側タンクに一体成型されていることを特徴とする複合型熱交換器。     The composite heat exchanger according to claim 9 or 10, wherein
    The second left tank and the second right tank are made of resin,
    The composite heat exchanger, wherein the second engaging portion is integrally formed with the second left tank and the second right tank.
  12. 　請求項９～請求項１１のいずれか１項に記載の複合型熱交換器であって、
    　前記第２左側タンクまたは前記第２右側タンクの中に第４熱交換器を設け、
    　前記第４熱交換器は、前記第２コア部に流入する前の前記第２冷媒と、前記第３冷媒との間で熱交換を行い、
    　前記第４熱交換器から流出した前記第３冷媒は、前記第３熱交換器に流入することを特徴とする複合型熱交換器。     A composite heat exchanger according to any one of claims 9 to 11,
    A fourth heat exchanger is provided in the second left tank or the second right tank,
    The fourth heat exchanger performs heat exchange between the second refrigerant and the third refrigerant before flowing into the second core part,
    The composite heat exchanger, wherein the third refrigerant that has flowed out of the fourth heat exchanger flows into the third heat exchanger.
  13. 　請求項８～請求項１２のいずれか１項に記載の複合型熱交換器であって、
    　前記第１熱交換器の第１冷媒入口部と、前記第２熱交換器の第２冷媒入口部とは、左右の同じ側に配置されていること
    　を特徴とする複合型熱交換器。     A composite heat exchanger according to any one of claims 8 to 12,
    The composite heat exchanger according to claim 1, wherein the first refrigerant inlet portion of the first heat exchanger and the second refrigerant inlet portion of the second heat exchanger are arranged on the same left and right sides.
  14. 　請求項８～請求項１３のいずれか１項に記載の複合型熱交換器であって、
    　前記第１熱交換器の第１冷媒入口部と、前記第３熱交換器の第３冷媒入口部とは、左右の同じ側に配置されていること
    　を特徴とする複合型熱交換器。     The composite heat exchanger according to any one of claims 8 to 13,
    The composite heat exchanger, wherein the first refrigerant inlet portion of the first heat exchanger and the third refrigerant inlet portion of the third heat exchanger are arranged on the same side of the left and right.
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