EP2751502B1 - Unité évaporateur-échangeur de chaleur - Google Patents

Unité évaporateur-échangeur de chaleur Download PDF

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Publication number
EP2751502B1
EP2751502B1 EP12759003.2A EP12759003A EP2751502B1 EP 2751502 B1 EP2751502 B1 EP 2751502B1 EP 12759003 A EP12759003 A EP 12759003A EP 2751502 B1 EP2751502 B1 EP 2751502B1
Authority
EP
European Patent Office
Prior art keywords
evaporator
heat exchanger
exchanger unit
housing
cooling agent
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP12759003.2A
Other languages
German (de)
English (en)
Other versions
EP2751502A1 (fr
EP2751502B8 (fr
Inventor
Tilo Schaefer
Gholam Reza Zakeri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hanon Systems EFP Deutschland GmbH
Original Assignee
Magna Powertrain Bad Homburg GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Magna Powertrain Bad Homburg GmbH filed Critical Magna Powertrain Bad Homburg GmbH
Publication of EP2751502A1 publication Critical patent/EP2751502A1/fr
Publication of EP2751502B1 publication Critical patent/EP2751502B1/fr
Application granted granted Critical
Publication of EP2751502B8 publication Critical patent/EP2751502B8/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/024—Evaporators with refrigerant in a vessel in which is situated a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/024—Evaporators with refrigerant in a vessel in which is situated a heat exchanger
    • F25B2339/0242—Evaporators with refrigerant in a vessel in which is situated a heat exchanger having tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/051—Compression system with heat exchange between particular parts of the system between the accumulator and another part of the cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/052—Compression system with heat exchange between particular parts of the system between the capillary tube and another part of the refrigeration cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/054—Compression system with heat exchange between particular parts of the system between the suction tube of the compressor and another part of the cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/18—Optimization, e.g. high integration of refrigeration components

Definitions

  • the invention relates to an evaporator-heat exchanger unit, and in particular to an evaporator-heat exchanger unit for a heating-cooling module for a motor vehicle.
  • a refrigerant is passed through a refrigerant circuit, this refrigerant circuit usually having at least one compressor, a gas cooler, an internal heat exchanger, an expansion device, an evaporator and a header tank.
  • these components are connected, usually in the order mentioned, via refrigerant-conducting pipelines, heat being removed from the refrigerant in the condenser / gas cooler and heat being supplied in the evaporator.
  • the EP 1 990 221 A1 proposes, based on conventional heating-cooling modules for a motor vehicle, a heating-cooling module in which a condenser / gas cooler, an evaporator and an internal heat exchanger are integrated in such a way that they form a closed unit. This should result in lower assembly costs and reduce the length of the refrigerant pipes installed.
  • FR 2 191 089 A1 discloses an evaporator heat exchanger unit with a header expansion tank for collecting a refrigerant, an evaporator and a housing which encloses an interior, in which interior the header reservoir and the evaporator are arranged.
  • the object of the invention is to enable an improved structure of a heating-cooling module for a motor vehicle, in which suitable components are combined to form a unit.
  • This task is accomplished by an evaporator-heat exchanger unit solved according to independent claim 1.
  • Preferred developments of this evaporator-heat exchanger unit are the subject of the dependent claims.
  • the invention according to independent claim 1 offers the advantage that, in particular, those components of a heating / cooling module for a motor vehicle that have similar temperatures are at least partially arranged in a housing enclosed by a housing. This makes it possible in particular to minimize unwanted heat transfers in the refrigerant circuit and to dimension the heating / cooling module smaller, which results in cost and space advantages.
  • the invention is described below with reference to an evaporator-heat exchanger unit for a heating / cooling module for a motor vehicle, in particular for a motor vehicle operated electrically or by means of a hybrid drive.
  • the invention can also be used for a heating / cooling module of a motor vehicle with an internal combustion engine.
  • the invention can also be used for heating-cooling modules in stationary applications, in particular buildings, or for heating-cooling modules in other applications.
  • An evaporator-heat exchanger unit for a heating-cooling module for a motor vehicle comprising at least one header expansion tank to collect a refrigerant and an evaporator, by means of which at least part of the refrigerant is converted into a gaseous state.
  • a housing which consists of at least two housing parts and which encloses an interior, receives at least the header expansion tank, the evaporator and a coolant, an expansion element being arranged on this housing, via which refrigerant is supplied to the evaporator.
  • An evaporator-heat exchanger unit in the sense of the invention is to be understood as a device which is arranged in the refrigerant circuit of a heating / cooling module for a motor vehicle. In the refrigerant flow, the evaporator-heat exchanger unit is arranged between a gas cooler outlet and a compressor inlet.
  • An evaporator-heat exchanger unit according to the invention has at least one header expansion tank, an evaporator, a housing and an expansion element.
  • the housing having at least two detachably connected housing parts is designed in such a way that it encloses an interior in which the header tank and the evaporator are arranged and which receives a coolant. A heat transfer is provided between this coolant and the refrigerant carried in the evaporator.
  • the functionality of a heat exchanger in particular is realized in the housing.
  • the refrigerant supplied to the evaporator via an expansion element arranged on the housing absorbs heat from the coolant in the housing. After passing through the evaporator, the refrigerant is led into the header tank and collects within the volume that is delimited by the header tank.
  • a heating-cooling module for a motor vehicle is to be understood as a refrigerant circuit from which cold or heat can be removed at different, at least two, locations, in particular the vehicle compartment of a motor vehicle by removing cold and / or heat to temper.
  • the heating-cooling module preferably has a gas cooler for extracting heat from the refrigerant circuit, an evaporator for absorbing heat in the refrigerant circuit, an internal heat exchanger device, an expansion device, a header tank and a compressor, as well as lines, preferably pipes, for Routing refrigerant between the individual components of the heating-cooling module.
  • a heating-cooling module in the sense of the invention has a coolant circuit by means of which heat can be introduced into the refrigerant in the evaporator of the heating-cooling module.
  • a collector expansion tank is to be understood as a tank by means of which refrigerant can be collected, which is supplied to a volume within the collector expansion tank, the collector expansion tank enclosing this volume in particular.
  • the refrigerant is preferably present in gaseous form in a high proportion and liquid in a low proportion.
  • the header expansion tank in the heating-cooling module serves in particular as a reservoir for refrigerant and thus in particular for regulating the pressure conditions in the heating-cooling module under various operating conditions.
  • a refrigerant in the sense of the invention is to be understood as a medium which is suitable for transferring heat and cold from this refrigerant, preferably to one To support coolant of the evaporator heat exchanger unit and / or on air from the surroundings of the vehicle and / or the interior of the vehicle.
  • Media are preferably provided as refrigerants that are suitable for use in heating-cooling modules for a motor vehicle, in particular carbon dioxide (CO 2 , R 744) or tetrafluoroethane (R 134a).
  • an evaporator is understood to mean a device of an evaporator-heat exchanger unit, by means of which at least part of the refrigerant carried in the evaporator is converted from a liquid to a gaseous state.
  • Relaxing refrigerant is supplied to the evaporator via an expansion device, the evaporator preferably having a length that is a refrigerant and which is many times greater than each of the outer dimensions of the evaporator, as a result of which it has a large surface area that is exposed to a medium, in particular coolant. is surrounded.
  • the evaporator or its refrigerant-carrying elements are surrounded by coolant, which is at a higher temperature than the refrigerant, whereby heat is removed from the coolant, and at the same time, with the energy transferred to the refrigerant, at least part of the refrigerant is converted into a gaseous state.
  • the coolant is cooled and preferably used to cool the passenger compartment of the motor vehicle by removing heat from the air in the passenger compartment by the cooled coolant.
  • the cooled coolant can be used to cool electronic components or engine components or a drive unit made of engine and electronics or a battery of the motor vehicle, in that heat is extracted from the component to be cooled by the cooled coolant.
  • a coolant in the sense of the invention is to be understood as a medium which is suitable for delivering heat to an evaporator to a refrigerant and at the same time is suitable for removing heat from the air, preferably from a passenger compartment of a motor vehicle, in particular by means of a heat exchanger suitable for this purpose.
  • the coolant is accommodated in the interior enclosed by the housing of the evaporator-heat exchanger unit and flows around the evaporator.
  • the coolant is preferably a water-containing medium, particularly preferably a water-based medium, in particular also water and / or a glycol-containing medium, in particular glycol.
  • a housing in the sense of the invention is to be understood as a device which receives at least the header expansion tank and the evaporator of the evaporator-heat exchanger unit and a coolant.
  • the housing encloses an interior, within which the header reservoir and the evaporator are arranged. This interior is at least partially, preferably essentially completely filled with coolant.
  • An expansion element is arranged on the housing. In the sense of the invention, this means that an expansion element can be arranged in a recess in this housing or inside the interior enclosed by the housing or outside on the housing.
  • an expansion element is understood to mean a reduction in the cross-section to be passed by the refrigerant in the refrigerant line, on which the refrigerant flow can relax, the refrigerant being present with a higher mass density and higher pressure before passing through the expansion element after passing through the expansion element with lower bulk density and lower pressure.
  • the refrigerant is fed to the evaporator in the evaporator-heat exchanger unit according to the invention.
  • the evaporator is essentially arranged around the header expansion tank. This enables a space-saving, common arrangement of the evaporator and the header reservoir within the interior of the housing of the evaporator-heat exchanger unit enclosed by the at least two housing parts.
  • the arrangement of the evaporator around the header expansion tank takes place in such a way that the largest possible surface of the evaporator is available for flushing by the coolant located in the housing, preferably by the length of the elements of the evaporator carrying the refrigerant being made many times higher than each of the outer dimensions of the evaporator.
  • the housing cover has at least one inlet recess through which refrigerants are arranged in the interior space enclosed by the housing. Evaporator can be introduced, and at least one outlet recess through which refrigerant can be discharged from the header reservoir arranged in the interior.
  • This inlet recess and this outlet recess preferably represent the refrigerant interfaces of the evaporator-heat exchanger unit to those components of the heating-cooling module for a motor vehicle that are not elements of the evaporator-heat exchanger unit.
  • the refrigerant preferably passes through a heat exchanger device before it enters the inlet recess or after it exits the outlet recess.
  • the refrigerant also passes through an expansion element which is arranged at the inlet recess. The refrigerant is led into the evaporator from the inlet recess.
  • Refrigerant which flows out of the header tank, preferably passing through a heat exchanger device, is discharged through the outlet recess in such a way that it reaches the compressor of the heating / cooling module. It passes through the further refrigerant conductors, preferably refrigerant pipes, of the heating-cooling module, which run outside the housing of the evaporator-heat exchanger unit.
  • a heat exchanger device is arranged on the outside of the housing, at least two spaced-apart channels extending in this heat exchanger device, and a coolant flow to the expansion element in a first channel and a coolant flow in a second channel the header expansion tank are guided such that heat can be exchanged between the refrigerant flows.
  • the heat exchanger device is preferably formed in one piece and is preferably arranged on the housing in such a way that the spaced-apart channels at the interface to the housing are matched to one another such that the first channel comes into register with the inlet recess of the housing cover and the second channel with the outlet recess of the housing cover takes cover. In this way, heat can be transferred between the refrigerant which is introduced into the evaporator-heat exchanger unit and the refrigerant which is discharged from the evaporator-heat exchanger unit.
  • the housing has at least one inlet opening through which coolant can be introduced in the interior space delimited by the housing and at least one outlet opening through which coolant can be discharged from the interior space delimited by the housing, wherein the coolant gives off heat in particular to the evaporator and preferably to the header reservoir.
  • Relatively warmer coolant in particular water or a medium, preferably water-based, is passed through the inlet opening in the housing to rinse the evaporator into the interior of the housing.
  • the coolant rinses the surface of the evaporator, which, due to the relatively colder refrigerant conducted in the evaporator, absorbs heat from the coolant, which then leaves the interior of the housing after cooling through the outlet opening of the housing.
  • the header expansion tank has at least one connecting channel through which refrigerant can be introduced into the header tank and at least one outlet channel through which refrigerant can be led out of the header tank.
  • Refrigerant from the evaporator is supplied to the header tank through this connecting channel, this refrigerant collecting in the header tank.
  • Refrigerant is discharged from the header tank through the outlet duct and, preferably after passing through the heat exchanger device, is fed to the compressor of the heating / cooling module.
  • the expansion element is arranged in the refrigerant flow between the heat exchanger device and the evaporator, the expansion element being formed in an expansion element recess in one of the housing parts.
  • the formation of an expansion organ recess is provided within the inlet recess of the housing of the evaporator-heat exchanger unit.
  • an expansion organ recess is to be understood as a recess which is suitable for accommodating an expansion organ in such a way that it Expansion device in the refrigerant flow between a heat exchanger device and an evaporator can cause an expansion of the refrigerant.
  • the expansion element is arranged in the refrigerant flow between the heat exchanger device and the evaporator, the expansion element being in particular firmly and at least indirectly connected to one of the housing parts.
  • the expansion member is preferably arranged such that the refrigerant flow through the expansion member can be fed directly to the inlet recess of the housing or that the refrigerant stream can be fed directly to the expansion member through the inlet recess of the housing.
  • the header expansion tank has a header tank and a header tank cover.
  • the header tank is especially designed to collect refrigerant.
  • the header tank cover, together with the header tank head, encloses an inner volume of the header tank.
  • the connecting channel and / or the outlet channel is preferably arranged on the header tank cover or on the header tank head.
  • the header tank cover and one of the housing parts are essentially designed in one piece as a cover of the evaporator-heat exchanger unit. This cover of the evaporator-heat exchanger unit is connected both to the at least one other housing part and to the header tank.
  • a lid of the evaporator-heat exchanger unit is to be understood in the sense of the invention as a lid which, together with the at least one other housing part of the housing, encloses the interior of the housing and which, together with the header reservoir, has an inner volume of the header reservoir.
  • This inner volume of the header tank, which is arranged in the interior of the housing, is essentially delimited from this interior of the housing in a manner that is leakproof and coolant-tight.
  • connection of the cover of the evaporator-heat exchanger unit to the header tank is preferably designed as a soldered connection or as a welded connection.
  • the connections of the cover of the evaporator-heat exchanger unit to the at least one other housing part are preferably designed as screw connections, in particular as screw connections with several screws.
  • the cover of the evaporator-heat exchanger unit is designed as a distributor plate, at least one inlet recess, one outlet recess, a connecting duct and one outlet duct being arranged in this distributor plate.
  • a distributor plate is to be understood as a cover of the evaporator-heat exchanger unit, which is designed in such a way that it conducts the refrigerant from the heat exchanger device to the expansion element, from the expansion element to the evaporator, from the evaporator to the header tank and from Collector expansion tank can take over to the heat exchanger device.
  • the expansion element is arranged in the inlet recess of the distributor plate.
  • this evaporator is essentially designed as a bent tube for conducting refrigerant.
  • the evaporator is preferably arranged as a tube running essentially spirally around the header reservoir, particularly preferably with a plurality of windings which are arranged in one row, two rows or in multiple rows.
  • the preferably bent tube is designed in such a way that its entire length exceeds each of the outer dimensions of the evaporator by a multiple.
  • the evaporator in several parts, preferably from curved, tubular elements which are each held to one another or to one or more structural parts.
  • this evaporator is designed as a tube made of a good heat-conducting material, in particular metal.
  • the evaporator is formed from an extruded profile with longitudinally oriented ribbing, and in addition to ribbing arranged on the outside of the profile, ribbing can also be provided in the interior of the profile. Refrigerant is conducted within this profile, which is preferably made of aluminum.
  • the evaporator is formed from a profile with transversely oriented ribbing, with refrigerant being conducted within this profile, which is preferably made from aluminum.
  • this ribbing is essentially formed on the housing side, which in particular improves the heat transfer between the evaporator and the coolant located in the interior of the housing.
  • Fig. 1 shows an exemplary embodiment of an evaporator-heat exchanger unit according to the invention.
  • the housing 10 of the evaporator heat exchanger unit 1 has a first housing part 15 and a second housing part 17.
  • the first housing part 15 is designed as a distributor plate 16 and at the same time as a header tank 36.
  • the first housing part 15 is formed from a metal material.
  • a heat exchanger device 50 is arranged on that side of the distributor plate 16 which is not connected to the second housing part 17.
  • This heat exchanger device 50 is designed as a plate heat exchanger, ie it has a package of a plurality of sheets which are soldered to one another and each have a specific contour. The contours of these soldered sheets are designed such that they conduct a line of refrigerant in two separate channels, a first channel 51 and a second channel 52 (both in Fig. 1 enable).
  • a refrigerant dock 60 is arranged on the side of the heat exchanger device 50 remote from the housing screw, which interfaces for the refrigerant supply and removal (both in Fig. 1 not shown).
  • the second housing part 17 has an inlet opening 12a, which serves as a coolant supply 71, and an outlet opening 12b, which serves as a coolant discharge 72.
  • the second housing part 17 is made of a plastic material, but can also be made of other materials such as a plastic composite material or a metal material.
  • the first housing part 15 and the second housing part 17 are releasably connected to one another by eight housing screws 81, but can also be releasably connected to one another in other embodiments in other embodiments.
  • Fig. 2 shows a sectional view in the plane BB of the exemplary embodiment of an evaporator heat exchanger unit 1 according to the invention Fig. 1 .
  • a refrigerant supply 61 (in Fig. 2 not shown) of the refrigerant dock 60 introduced refrigerant into the first channel 51 of the heat exchanger device 50.
  • heat is transferred from the refrigerant in the first channel 51 to the refrigerant in the second channel 52 in the heat exchanger device 50, which is designed as a plate heat exchanger in this exemplary embodiment.
  • the refrigerant from the first channel 51 then flows from the first channel 51 into the expansion organ recess 13 (in Fig.
  • the refrigerant flows from the expansion organ recess 13 to the inlet recess 11a, then the refrigerant is fed to the evaporator 20, where it is guided in the evaporator coil 21.
  • the evaporator coil 21 is in the form of a spiral bent pipe, which extends in a plurality of turns around the header expansion tank 30, the refrigerant being guided away from the distributor plate 16 in an outer winding packet and again being directed towards the distributor plate 16 in an inner winding packet.
  • the evaporator coil 21 also has a non-spiral bent part, by means of which the refrigerant, after passing through the spiral part of the evaporator coil 21, is fed to the connecting channel 31 of the header reservoir 30.
  • the refrigerant passes through the evaporator 20
  • the proportion of the gaseous refrigerant increases, the proportion of the liquid refrigerant decreasing.
  • the energy required for this is supplied to the refrigerant, in particular via a heat transfer, from a coolant which flows around the evaporator coil 21 of the evaporator 20, it flowing through the interior 18 of the housing 10, i.e. between the walls of the second housing part 17, the distributor plate 16 and the collector Expansion tank pot 35 is added.
  • the coolant supply 71 takes place via the inlet opening 12a of the second housing part 17.
  • the coolant is removed 72 via the outlet opening 12b of the second housing part 17, preferably a continuous coolant flow through the interior 18 of the housing 10 is provided.
  • Fig. 3 shows a further sectional view of the exemplary embodiment of an evaporator-heat exchanger unit 1 according to the invention Fig. 1 in level AA, the course of which is also shown in Fig. 2 can be removed.
  • the refrigerant After the refrigerant has passed through the evaporator 20, it is transferred via the connecting channel 31 into the header reservoir 30, where at least part of the liquid portion of the refrigerant collects in the header reservoir 35.
  • a quantity of refrigerant which is dependent on the operating conditions in the refrigerant circuit of the heating / cooling module, is converted from the header expansion tank 30 via the outlet channel 32 and the outlet recess 11b (in Fig. 3 not shown) of the housing 10 in turn is fed to the heat exchanger device 50 in its second channel 52 in order to absorb heat from the refrigerant in the first channel 51 of the heat exchanger device 50.
  • the refrigerant is removed 62 (in Fig. 3 not shown) from the refrigerant dock 60 from the evaporator heat exchanger unit 1 to further components of the heating / cooling module, in this exemplary embodiment to the compressor.
  • the interior 18 of the housing 10 is enclosed by the distributor plate 16 and the second housing part 17, the distributor plate 16 and the second housing part 17 being screwed to one another by means of a multiplicity of housing screws 81.
  • the distributor plate 16 which in this exemplary embodiment also takes on the function of the header tank 36, the header tank 35 is arranged in a fluid and pressure-tight manner by means of a soldered connection.
  • Fig. 4 shows a sectional view in the distributor plate 16 of the exemplary embodiment of an evaporator heat exchanger unit 1 according to the invention Fig. 1 (Section plane DD).
  • the refrigerant is discharged from the expansion organ recess 13 in the inlet recess 11a.
  • An expansion element 40 is arranged in front of it, which is designed as a fixed throttle 41, for example.
  • the expansion organ recess 13 is formed as part of the inlet recess 11a.
  • the refrigerant relaxes at the fixed throttle 41, as a result of which the pressure of the refrigerant in the refrigerant flow drops after passing through the expansion element 40.
  • the temperature of the refrigerant also drops.
  • the refrigerant After passing through the fixed throttle 41, the refrigerant is in the inlet recess 11a largely liquid and to a small extent gaseous and is supplied to the evaporator 20 in its evaporator coil 21 via the refrigerant interface 33.
  • the refrigerant After the refrigerant has passed through the evaporator 20, it is fed into the header expansion tank 30 via the refrigerant interface 34 by means of the connecting channel 31 through which it passes.
  • the outlet recess 11b - with the outlet duct 32 - is additionally arranged, with refrigerant being led from the header expansion tank 30 into the second duct 52 of the heat exchanger device via the outlet duct 32 and the outlet recess 11b.
  • Fig. 5 and Fig. 6 show two different 3D sectional views of the exemplary embodiment of an evaporator-heat exchanger unit 1 according to the invention Fig. 1 . This is intended to further clarify the arrangement of the individual components relative to one another. In particular, the arrangement of the refrigerant supply 61 and the refrigerant discharge 62 on the refrigerant dock 60 is shown, which had not emerged from the previous figures.
  • the first channel 51 of the heat exchanger device 50 is arranged starting at the refrigerant supply 61. In its further course, it is formed by a package of a plurality of sheets which are soldered to one another and each stamped into a specific contour, this stamped contour forming a refrigerant-conducting cavity which is separated from the second channel 52 and in which the refrigerant is supplied to the expansion organ recess 13.
  • the refrigerant is transferred from the header tank 30 to the refrigerant discharge in the second channel 52, which is designed analogously. Good heat transfer to the refrigerant in the second channel 52 takes place between the refrigerant flows in the first channel 51 and in the second channel 52.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (15)

  1. Unité évaporateur-échangeur de chaleur (1) pour un module chauffant-refroidissant pour un véhicule automobile, présentant au moins
    - un collecteur-réservoir de compensation (30) pour la collecte d'un réfrigérant, et
    - un évaporateur (20), au moyen duquel au moins une partie du réfrigérant peut être convertie en un état gazeux
    un boîtier (10), lequel se compose d'au moins deux parties (15, 17) reliées l'une à l'autre de manière amovible et lequel enferme un espace intérieur (18), dans laquelle le collecteur-réservoir de compensation (30), l'évaporateur (20) et un réfrigérant sont agencés dans cet espace intérieur (18), et dans laquelle
    un organe d'expansion (40), par le biais duquel du réfrigérant est amené à l'évaporateur (20), est agencé au niveau de ce boîtier (10).
  2. Unité évaporateur-échangeur de chaleur (1) selon la revendication 1, dans laquelle cet évaporateur (20) est agencé sensiblement autour du collecteur-réservoir de compensation (30).
  3. Unité évaporateur-échangeur de chaleur (1) selon l'une quelconque des revendications précédentes, dans laquelle le boîtier (10) présente au moins un évidement d'entrée (11a), par lequel du réfrigérant peut être introduit dans l'évaporateur (20), et au moins un évidement de sortie (11b), par lequel du réfrigérant peut être évacué du collecteur-réservoir de compensation (30).
  4. Unité évaporateur-échangeur de chaleur (1) selon l'une quelconque des revendications précédentes, dans laquelle un dispositif échangeur de chaleur (50) est agencé au niveau du boîtier (10) côté extérieur du boîtier, dans laquelle
    au moins deux canaux (51, 52) espacés l'un de l'autre s'étendent dans le dispositif échangeur de chaleur (50), et dans laquelle un courant de réfrigérant est guidé vers l'organe d'expansion (40) dans un premier canal (51) et un courant de réfrigérant est guidé hors du collecteur-réservoir de compensation (30) dans un deuxième canal (52) de sorte que de la chaleur est échangeable entre les courants de réfrigérant.
  5. Unité évaporateur-échangeur de chaleur (1) selon l'une quelconque des revendications précédentes, dans laquelle ce boîtier (10) présente au moins une ouverture d'entrée (12a), par laquelle l'agent de refroidissement peut être introduit dans l'espace intérieur (18) enfermé par le boîtier et au moins une ouverture de sortie (12b), par laquelle de l'agent de refroidissement peut être évacué de l'espace intérieur (18) enfermé par le boîtier (10).
  6. Unité évaporateur-échangeur de chaleur (1) selon l'une quelconque des revendications précédentes, dans laquelle le collecteur-réservoir de compensation (30) présente au moins un canal de liaison (31), par lequel du réfrigérant peut être introduit dans le collecteur-réservoir de compensation (30), et au moins un canal de sortie (32), par lequel du réfrigérant peut être évacué du collecteur-réservoir de compensation (30).
  7. Unité évaporateur-échangeur de chaleur (1) selon l'une quelconque des revendications 4 à 6, dans laquelle cet organe d'expansion (40) est agencé dans le courant de réfrigérant entre le dispositif échangeur de chaleur (50) et l'évaporateur (20), dans laquelle l'organe d'expansion (40) est réalisé dans un évidement d'organe d'expansion (13) d'une des parties de boîtier (15, 17).
  8. Unité évaporateur-échangeur de chaleur (1) selon l'une quelconque des revendications 4 à 6, dans laquelle cet organe d'expansion (40) est agencé dans le courant de réfrigérant entre le dispositif échangeur de chaleur (50) et l'évaporateur (20), dans laquelle l'organe d'expansion (40) est relié à une des parties de boîtier (15, 17).
  9. Unité évaporateur-échangeur de chaleur (1) selon l'une quelconque des revendications précédentes, dans laquelle le collecteur-réservoir de compensation (30) présente un pot de collecteur-réservoir de compensation (35) et un couvercle de collecteur-réservoir de compensation (36).
  10. Unité évaporateur-échangeur de chaleur (1) selon la revendication 9, dans laquelle une des parties de boîtier (15) et le couvercle de collecteur-réservoir de compensation (36) sont réalisés sensiblement d'un seul tenant en tant que couvercle de l'unité évaporateur-échangeur de chaleur, dans laquelle
    ce couvercle de l'unité évaporateur-échangeur de chaleur est relié respectivement à l'au moins une autre partie de boîtier (15) et au pot de collecteur-réservoir de compensation (35).
  11. Unité évaporateur-échangeur de chaleur (1) selon la revendication 9, dans laquelle le couvercle de l'unité évaporateur-échangeur de chaleur est réalisé en tant que plaque de distribution (16), dans laquelle
    au moins un évidement d'entrée (11a), un évidement de sortie (11b), un canal de liaison (31) et un canal de sortie (32) sont agencés dans cette plaque de distribution (16).
  12. Unité évaporateur-échangeur de chaleur (1) selon la revendication 10, dans laquelle une partie de l'évidement d'entrée (11a) de cette plaque de distribution (16) est réalisée en tant qu'évidement d'organe d'expansion (13), et l'organe d'expansion (40) est agencé dans cet évidement d'organe d'expansion (13).
  13. Unité évaporateur-échangeur de chaleur (1) selon l'une quelconque des revendications précédentes, dans laquelle cet évaporateur (20) est réalisé sensiblement en tant que tube cintré (21) pour la conduite de réfrigérant.
  14. Unité évaporateur-échangeur de chaleur (1) selon l'une quelconque des revendications précédentes, dans laquelle cet évaporateur (20) est réalisé en tant que profilé métallique extrudé, en particulier en tant que profilé d'aluminium, avec des nervures orientées longitudinalement, dans laquelle du réfrigérant est conduit à l'intérieur de ce profilé métallique.
  15. Unité évaporateur-échangeur de chaleur (1) selon l'une quelconque des revendications 1 à 13, dans laquelle cet évaporateur (20) est réalisé en tant que profilé métallique extrudé, en particulier en tant que profilé d'aluminium, avec des nervures orientées transversalement, dans laquelle du réfrigérant est conduit à l'intérieur de ce profilé métallique.
EP12759003.2A 2011-08-31 2012-08-24 Unité évaporateur-échangeur de chaleur Active EP2751502B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011111964A DE102011111964A1 (de) 2011-08-31 2011-08-31 Verdampfer-Wärmetauscher-Einheit
PCT/EP2012/003590 WO2013029769A1 (fr) 2011-08-31 2012-08-24 Unité évaporateur-échangeur de chaleur

Publications (3)

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EP2751502A1 EP2751502A1 (fr) 2014-07-09
EP2751502B1 true EP2751502B1 (fr) 2020-03-11
EP2751502B8 EP2751502B8 (fr) 2020-04-15

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US (1) US10024587B2 (fr)
EP (1) EP2751502B8 (fr)
JP (1) JP6072037B2 (fr)
KR (1) KR20140105429A (fr)
CN (1) CN103765130B (fr)
DE (2) DE102011111964A1 (fr)
WO (1) WO2013029769A1 (fr)

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PL2857401T3 (pl) * 2012-05-30 2020-02-28 Meiji Seika Pharma Co., Ltd. NOWY INHIBITOR ß–LAKTAMAZY I SPOSÓB JEGO WYTWARZANIA
US9291097B2 (en) * 2013-06-04 2016-03-22 Caterpillar Inc. Cooling module for electronic engine components
KR102199382B1 (ko) * 2013-10-15 2021-01-06 엘지전자 주식회사 공기조화기 및 그 제어방법
WO2021238649A1 (fr) * 2020-05-29 2021-12-02 绍兴三花新能源汽车部件有限公司 Échangeur de chaleur et séparateur gaz-liquide
CN113739457A (zh) * 2020-05-29 2021-12-03 绍兴三花新能源汽车部件有限公司 一种热交换器以及气液分离器
EP4368932A1 (fr) * 2022-11-14 2024-05-15 Danfoss A/S Boîtier de réservoir pour récepteur de réfrigérant à fonctionnalité d'échangeur de chaleur intégrée

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FR2191089A1 (fr) * 1972-07-03 1974-02-01 Ciat Sa
JPS5637251Y2 (fr) * 1976-10-06 1981-09-01
DE3513324A1 (de) * 1985-04-13 1986-10-16 Flutec Fluidtechnische Geräte GmbH, 6603 Sulzbach Vorrichtung zum kuehlen von druckmittel, insbesondere druckfluessigkeit
TW327205B (en) * 1995-06-19 1998-02-21 Hitachi Ltd Heat exchanger
JPH0989420A (ja) * 1995-09-27 1997-04-04 Fuji Koki:Kk 膨張弁付レシーバタンク
JP2002333241A (ja) * 2001-05-09 2002-11-22 Zexel Valeo Climate Control Corp 膨張装置付きアキュムレータ
JP4822238B2 (ja) * 2001-07-24 2011-11-24 株式会社日本製鋼所 液媒用内面溝付伝熱管とその伝熱管を用いた熱交換器
WO2006065185A1 (fr) * 2004-12-16 2006-06-22 Volvo Lastvagnar Ab Arrangement et procede lies a des systemes de refroidissement
JP4897298B2 (ja) * 2006-01-17 2012-03-14 サンデン株式会社 気液分離器モジュール
JP2008265686A (ja) * 2007-04-24 2008-11-06 Denso Corp 車両用冷凍サイクル装置
DE602007001587D1 (de) 2007-05-10 2009-08-27 Fiat Ricerche Klimaanlagensystem für ein Kraftfahrzeug und mit dem System ausgestattetes Kraftfahrzeug
DE102008060699A1 (de) 2008-12-08 2010-06-10 Behr Gmbh & Co. Kg Verdampfer für einen Kältekreis

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Publication number Publication date
CN103765130A (zh) 2014-04-30
US20140174120A1 (en) 2014-06-26
JP2014525559A (ja) 2014-09-29
KR20140105429A (ko) 2014-09-01
JP6072037B2 (ja) 2017-02-01
DE112012003568A5 (de) 2014-06-12
EP2751502A1 (fr) 2014-07-09
US10024587B2 (en) 2018-07-17
WO2013029769A1 (fr) 2013-03-07
DE102011111964A1 (de) 2013-02-28
EP2751502B8 (fr) 2020-04-15
CN103765130B (zh) 2017-08-08

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