EP3472546A1 - Multichannel evaporator system for a refrigerating device - Google Patents

Multichannel evaporator system for a refrigerating device

Info

Publication number
EP3472546A1
EP3472546A1 EP17734015.5A EP17734015A EP3472546A1 EP 3472546 A1 EP3472546 A1 EP 3472546A1 EP 17734015 A EP17734015 A EP 17734015A EP 3472546 A1 EP3472546 A1 EP 3472546A1
Authority
EP
European Patent Office
Prior art keywords
profile
heater
evaporator
fluid
evaporator according
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.)
Granted
Application number
EP17734015.5A
Other languages
German (de)
French (fr)
Other versions
EP3472546B1 (en
Inventor
Tolga APAYDIN
Gokmen PEKER
Funda ERDEM
Egemen TINAR
Unsal KAYA
Sabahattin Hocaoglu
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP3472546A1 publication Critical patent/EP3472546A1/en
Application granted granted Critical
Publication of EP3472546B1 publication Critical patent/EP3472546B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F28D1/0478—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00—Removing ice or water from heat-exchange apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/006—Preventing deposits of ice
    • 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
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0071—Evaporators

Definitions

  • the invention relates to evaporators located in the refrigeration cycle especially to multichannel evaporator systems with resistance and used in no-frost refrigerating devices.
  • the refrigerant fluid compressed by the compressor is expanded on an evaporator placed in the heat-insulated refrigerating cabinet so that heat is extracted from the environment.
  • Moisture generated in refrigerating devices with refrigerant cycle, especially in household refrigerators causes frost deposit on the evaporator during circulation of the cooling air.
  • frost deposit on the evaporator increases, the air flow passing through the evaporator and the heat transfer coefficient decreases and hence the heat transfer efficiency decreases.
  • no-frost refrigerating devices have been developed, having a heater on the evaporator to remove the frost deposit periodically.
  • ducts are formed to place a heater on fins arranged parallel to each other on a tube of circular cross-section.
  • the heaters which are usually in the form of tubes, are fitted on the side wall of the fin tube evaporator with various fasteners and are fixed in position with various additional fasteners.
  • Multichannel evaporators are obtained by forming heat exchanger channels in a flat profile and bending in S form. The fins being close and extending parallel to each other are located between bended portions.
  • the patent publication, EP2593727 discloses a multichannel evaporator system through which the refrigerant fluid flows.
  • the mini-channel heat exchanger is coated hydrophobically to facilitate drainage of the water, further the heater used to dissolve the frost deposit on the surface is passed through the heat exchanger channels.
  • the object of the invention is to facilitate the installation of the heater in multichannel evaporator systems used for refrigerating devices.
  • the invention is a multichannel evaporator system for a refrigerating device comprising a flat profile having a plurality of parallel refrigerant fluid channels and mutually bended portions so as to provide fluid transmission between a fluid inlet and a fluid outlet and a fin assembly extending between the bended portions.
  • the preferred embodiment of the invention comprises a mounting channel extending on the outer portion of the profile in a manner suitable for coupling a heater. The heater is easily mounted on the profile because the mounting channel is located on the outer portion of the profile.
  • the mounting channel is in snap-fit structure with the heater.
  • the heater is sited in a practical manner through pressing into the mounting channel.
  • auxiliary fixing elements may be used on the mounting channel for the fitting of the heater to the mounting channel.
  • an upper groove is provided on the outer portion of the mounting channel where the heater passes, and where the heater is coupled, and the profile includes a lower groove provided in an inner portion opposite to the outer portion where an auxiliary heater is coupled .
  • the upper groove and the lower groove measurements are adjusted to the diameters of the corresponding heater and the auxiliary heater.
  • the upper groove and the lower groove are co-aligned closely with a side edge of the profile. In this case, space is created for components assisting heat transfer arranged in inner portions for example for the fin assembly, thus the heaters are easily mounted to the edge portions.
  • a preferred embodiment of the invention comprises an edge chamber being parallel to the refrigerating fluid channel and into which the upper groove and the lower groove extend.
  • the edge chamber allows the deformation of the channel close to the outer edge of the profile in which the channels are located through collapsing thereby obtaining the upper and lower groove without damaging the planar upper and lower edges of the profile.
  • the fin assembly comprises a plurality of fins sited transversally on the profile and on which a side edge of heater rests at least partially.
  • the fins assisting in heat transfer are efficiently heated in case of frost deposition by means of contact with the heater by conducting heat transfer.
  • the mounting channel extends continuously between the fluid inlet and the fluid outlet throughout the profile length.
  • the evaporator in case of frost deposition by using a continuous long heater.
  • a one-piece heater makes the evaporator system compact and simple.
  • the profile has an S-like form. S form increases the total heat transfer surface area by providing a compact structure of the profile.
  • the invention is a method of manufacturing of an evaporator system according to any one of the above.
  • the preferred embodiment of the invention includes processing steps of: providing the profile having flat form and containing the fluid channel in a structure of chambers adjacent to each other; collapsing inwardly the fluid channel being adjacent to the two opposite lateral edges through pressure from above and from below so as to form a lower groove and an upper groove and bending the profile in S form. In this way, grooves for a heater connection are easily obtained from a flat profile containing a plurality of fluid chambers.
  • a preferred embodiment of the invention comprises the processing step of snap-fit mounting a heater and an auxiliary heater to the upper and lower groove respectively. In this way, the installation of the heater to the profile is facilitated.
  • Figure 1 – is a perspective view of a representative structuring of the multichannel evaporator according to the invention in the case where the heater is mounted.
  • Figure 2 – is a cross-sectional view of the upper portion of the multichannel evaporator shown in Figure 1.
  • FIG 1 shows in a perspective view a multichannel evaporator for a refrigerating device suitable for placing in a freezer compartment of a refrigerator (not shown).
  • the evaporator comprises an uniform profile (10) of metal having a bended portion (15) joining a plurality of successive planar extensions (18) with each opposite ends bended in a S-like form at their opposite ends.
  • the profile (10) has a fluid inlet (12) through which enters a pressurized refrigerant fluid coming from the compressor (not shown) connected to the refrigeration cycle.
  • the fluid inlet (12) is connected to a fluid outlet (16) by a plurality of channels (11) through which the refrigerant fluid is continuously transported.
  • An uninterrupted mounting channel (50) is provided on the outer portion of the flat-form profile (10).
  • a fin assembly (40) is fixed perpendicularly between the planar extensions (18) of the profile (10) separated from each other by bended portions (15).
  • the fin assembly (40) has a support wall (42) of flat plate extending perpendicular to the fins (41) so as to allow the fins (41) to stand on top of each other in two layers and a plurality of closely spaced fins extending perpendicularly.
  • the fins (41) are fixed to the planar portion (18) on the bases and heads.
  • a heater (20) and an auxiliary heater (30) extending parallel thereto being adjacent to each other are attached detachably to the mounting channel (50).
  • the heater (20) and the auxiliary heater (30) entering the mounting channel (50) at the inlet port (21) and the second inlet port (31) extend straightly in a straight portion (22, 32) along the planar portion (18) .
  • the heater (20) has the form of consecutives S comprising a first bending portion (23) bent by drawing a curve in the corresponding bend region of the mounting channel (50) and a second bending portion (24) drawing an opposite curve thereto,.
  • the auxiliary heater (30), parallelly to the heater (20) has similar structure.
  • the heater (20) and the auxiliary heater (30) presenting the outlet port (29) and the second outlet port (35) at the portion of the profile (10) near the fluid outlet (16), are connected to an electrical source (not shown).
  • the multichannel evaporator is shown in a cross-section between two superposed planar portions (18).
  • the profile (10) has a flat rectangular cross-section.
  • channels (11) of rectangular cross section extend parallel to each other.
  • the heater (20) and the auxiliary heater (30) have a curvilinear cross section.
  • the mounting channel (50) is shown in detail by clearing the heater (20) and the auxiliary heater (30), representatively located at the right hand side.
  • An edge chamber (17) is formed at the upper and lower portion of the mounting channel (50) formed through collapsing inwardly of a channel (11) close to the outer side edges (19) of the profile (10) from above and from below.
  • the mounting channel (50) comprises a concave upper groove (52) in the outer portion (13) and symmetrically thereto, a lower groove (54) provided in the inner portion (14).
  • Arc diameter of the upper groove (52) and / or the lower groove (54) between the inner end (55) of the inner portion (14) and the outer end (53) of the outer portion (13) at the corresponding outer portion (13) or inner portion (14) of the profile (10) is equally to the circular arc of the corresponding heater (20) or auxiliary heater (30).
  • the heater (20) thus easily engages the upper groove (52) and the auxiliary heater (30) engages the lower groove (54) by corresponding bases (26) and heads (33).
  • a rear edge (27) of the heater (20) and a similar back portion (34) of the auxiliary heater (30) contact all respective fins (41) at their side portion.
  • the heater (20) and the auxiliary heater (30) assist in heating the fin assembly (40).

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Defrosting Systems (AREA)

Abstract

The present invention is a multichannel evaporator system for a refrigerating device comprising a flat profile (10) having a plurality of parallel refrigerant fluid channels (11) and mutually bended portions (15) so as to provide a fluid transmission between a fluid inlet (12) and a fluid outlet (16) and a fin assembly (40) extending between the bended portions (15).

Description

    MULTICHANNEL EVAPORATOR SYSTEM FOR A REFRIGERATING DEVICE
  • The invention relates to evaporators located in the refrigeration cycle especially to multichannel evaporator systems with resistance and used in no-frost refrigerating devices.
  • During the refrigeration cycles, the refrigerant fluid compressed by the compressor is expanded on an evaporator placed in the heat-insulated refrigerating cabinet so that heat is extracted from the environment. Moisture generated in refrigerating devices with refrigerant cycle, especially in household refrigerators causes frost deposit on the evaporator during circulation of the cooling air. When the frost deposit on the evaporator increases, the air flow passing through the evaporator and the heat transfer coefficient decreases and hence the heat transfer efficiency decreases. In order to reduce the effect of this situation, no-frost refrigerating devices have been developed, having a heater on the evaporator to remove the frost deposit periodically. In finned tube evaporators, commonly used in no-frost refrigerating devices, ducts are formed to place a heater on fins arranged parallel to each other on a tube of circular cross-section. The heaters, which are usually in the form of tubes, are fitted on the side wall of the fin tube evaporator with various fasteners and are fixed in position with various additional fasteners.
  • A different type of evaporator is multichannel evaporators. Multichannel evaporators are obtained by forming heat exchanger channels in a flat profile and bending in S form. The fins being close and extending parallel to each other are located between bended portions. The patent publication, EP2593727, discloses a multichannel evaporator system through which the refrigerant fluid flows. In the context of the said invention, the mini-channel heat exchanger is coated hydrophobically to facilitate drainage of the water, further the heater used to dissolve the frost deposit on the surface is passed through the heat exchanger channels.
  • The object of the invention is to facilitate the installation of the heater in multichannel evaporator systems used for refrigerating devices.
  • To achieve the aforementioned object, the invention is a multichannel evaporator system for a refrigerating device comprising a flat profile having a plurality of parallel refrigerant fluid channels and mutually bended portions so as to provide fluid transmission between a fluid inlet and a fluid outlet and a fin assembly extending between the bended portions. The preferred embodiment of the invention comprises a mounting channel extending on the outer portion of the profile in a manner suitable for coupling a heater. The heater is easily mounted on the profile because the mounting channel is located on the outer portion of the profile.
  • In a preferred embodiment of the invention, the mounting channel is in snap-fit structure with the heater. In this case, the heater is sited in a practical manner through pressing into the mounting channel. In an alternative embodiment, auxiliary fixing elements may be used on the mounting channel for the fitting of the heater to the mounting channel.
  • In a preferred embodiment of the invention, an upper groove is provided on the outer portion of the mounting channel where the heater passes, and where the heater is coupled, and the profile includes a lower groove provided in an inner portion opposite to the outer portion where an auxiliary heater is coupled . The upper groove and the lower groove measurements are adjusted to the diameters of the corresponding heater and the auxiliary heater.
  • In a preferred embodiment of the invention, the upper groove and the lower groove are co-aligned closely with a side edge of the profile. In this case, space is created for components assisting heat transfer arranged in inner portions for example for the fin assembly, thus the heaters are easily mounted to the edge portions.
  • A preferred embodiment of the invention comprises an edge chamber being parallel to the refrigerating fluid channel and into which the upper groove and the lower groove extend. The edge chamber allows the deformation of the channel close to the outer edge of the profile in which the channels are located through collapsing thereby obtaining the upper and lower groove without damaging the planar upper and lower edges of the profile.
  • In a preferred embodiment of the invention the fin assembly comprises a plurality of fins sited transversally on the profile and on which a side edge of heater rests at least partially. Thus, the fins assisting in heat transfer are efficiently heated in case of frost deposition by means of contact with the heater by conducting heat transfer.
  • In a preferred embodiment of the invention, the mounting channel extends continuously between the fluid inlet and the fluid outlet throughout the profile length. In this case, it is possible to heat the evaporator in case of frost deposition by using a continuous long heater. A one-piece heater makes the evaporator system compact and simple. In a preferred embodiment of the invention, the profile has an S-like form. S form increases the total heat transfer surface area by providing a compact structure of the profile.
  • To achieve the above-mentioned objects, the invention is a method of manufacturing of an evaporator system according to any one of the above. The preferred embodiment of the invention includes processing steps of: providing the profile having flat form and containing the fluid channel in a structure of chambers adjacent to each other; collapsing inwardly the fluid channel being adjacent to the two opposite lateral edges through pressure from above and from below so as to form a lower groove and an upper groove and bending the profile in S form. In this way, grooves for a heater connection are easily obtained from a flat profile containing a plurality of fluid chambers.
  • A preferred embodiment of the invention comprises the processing step of snap-fit mounting a heater and an auxiliary heater to the upper and lower groove respectively. In this way, the installation of the heater to the profile is facilitated.
  • A home appliance realized for achieving the object of the present invention is shown in the attached figures wherein,
  • Figure 1 – is a perspective view of a representative structuring of the multichannel evaporator according to the invention in the case where the heater is mounted.
  • Figure 2 – is a cross-sectional view of the upper portion of the multichannel evaporator shown in Figure 1.
  • The elements in the figures are numbered individually and the correspondence of these numbers are given hereinafter.
  • 10 Profile
  • 11 Fluid Channel
  • 12 Fluid inlet
  • 13 Outer portion
  • 14 Inner portion
  • 15 Bended portion
  • 16 Fluid outlet
  • 17 Edge chamber
  • 18 Planar portion
  • 19 Side edge
  • 20 Heater
  • 21 Inlet port
  • 22 Straight portion
  • 23 First bend portion
  • 24 Second bend portion
  • 26 Base
  • 27 Rear edge
  • 29 Outlet port
  • 30 Auxiliary heater
  • 31 Second inlet port
  • 32 Straight portion
  • 33 Head
  • 34 Rear portion
  • 35 Second outlet port
  • 40 Fin assembly
  • 41 Fin
  • 42 Support wall
  • 50 Mounting channel
  • 52 Upper groove
  • 53 Outer end
  • 54 Lower groove
  • 55 Inner end
  • Figure 1 shows in a perspective view a multichannel evaporator for a refrigerating device suitable for placing in a freezer compartment of a refrigerator (not shown). The evaporator comprises an uniform profile (10) of metal having a bended portion (15) joining a plurality of successive planar extensions (18) with each opposite ends bended in a S-like form at their opposite ends. The profile (10) has a fluid inlet (12) through which enters a pressurized refrigerant fluid coming from the compressor (not shown) connected to the refrigeration cycle. The fluid inlet (12) is connected to a fluid outlet (16) by a plurality of channels (11) through which the refrigerant fluid is continuously transported. An uninterrupted mounting channel (50) is provided on the outer portion of the flat-form profile (10). A fin assembly (40) is fixed perpendicularly between the planar extensions (18) of the profile (10) separated from each other by bended portions (15). The fin assembly (40) has a support wall (42) of flat plate extending perpendicular to the fins (41) so as to allow the fins (41) to stand on top of each other in two layers and a plurality of closely spaced fins extending perpendicularly. The fins (41) are fixed to the planar portion (18) on the bases and heads.
  • A heater (20) and an auxiliary heater (30) extending parallel thereto being adjacent to each other are attached detachably to the mounting channel (50). The heater (20) and the auxiliary heater (30) entering the mounting channel (50) at the inlet port (21) and the second inlet port (31) extend straightly in a straight portion (22, 32) along the planar portion (18) . At the bend portion (15) of the profile (10), the heater (20) has the form of consecutives S comprising a first bending portion (23) bent by drawing a curve in the corresponding bend region of the mounting channel (50) and a second bending portion (24) drawing an opposite curve thereto,. The auxiliary heater (30), parallelly to the heater (20) has similar structure. The heater (20) and the auxiliary heater (30) presenting the outlet port (29) and the second outlet port (35) at the portion of the profile (10) near the fluid outlet (16), are connected to an electrical source (not shown).
  • In Figure 2, the multichannel evaporator is shown in a cross-section between two superposed planar portions (18). The profile (10) has a flat rectangular cross-section. In the profile (10), channels (11) of rectangular cross section extend parallel to each other. The heater (20) and the auxiliary heater (30) have a curvilinear cross section. The mounting channel (50) is shown in detail by clearing the heater (20) and the auxiliary heater (30), representatively located at the right hand side. An edge chamber (17) is formed at the upper and lower portion of the mounting channel (50) formed through collapsing inwardly of a channel (11) close to the outer side edges (19) of the profile (10) from above and from below. The mounting channel (50) comprises a concave upper groove (52) in the outer portion (13) and symmetrically thereto, a lower groove (54) provided in the inner portion (14). Arc diameter of the upper groove (52) and / or the lower groove (54) between the inner end (55) of the inner portion (14) and the outer end (53) of the outer portion (13) at the corresponding outer portion (13) or inner portion (14) of the profile (10) is equally to the circular arc of the corresponding heater (20) or auxiliary heater (30). The heater (20) thus easily engages the upper groove (52) and the auxiliary heater (30) engages the lower groove (54) by corresponding bases (26) and heads (33). A rear edge (27) of the heater (20) and a similar back portion (34) of the auxiliary heater (30) contact all respective fins (41) at their side portion. Thus, the heater (20) and the auxiliary heater (30) assist in heating the fin assembly (40).

Claims (10)

  1. A multichannel evaporator suitable for use in a refrigerating device comprising a flat profile (10) having a plurality of parallel refrigerant fluid channels (11) and mutually bended portions (15), so as to provide a fluid transmission between a fluid inlet (12) and a fluid outlet (16) and a fin assembly (40) extending between the bended portions (15) characterized by a mounting channel (50) extending on the outer portion of the profile (10) in a manner suitable for coupling a heater (20).
  2. Evaporator according to claim 1, characterized by a mounting channel (50) in snap-fit structure with the heater (20).
  3. Evaporator according to any one of the preceding claims characterized by an upper groove (52) provided on the outer portion (13) of the mounting channel (50) where the heater passes, and where the heater (20) is coupled and by a bottom groove (54) provided in an inner portion (14) of the profile (10) opposite to the outer portion (13) where an auxiliary heater (30) is coupled.
  4. Evaporator according to claim 3, characterized by a lower groove (54) and an upper groove (52) being co-aligned closely with a side edge (19) of the profile (10).
  5. Evaporator according to claim 4, characterized by an edge chamber (17) being parallel to the refrigerating fluid channel (11) and into which the upper groove (52) and the lower groove (54) extend.
  6. Evaporator according to any one of the preceding claims, characterized by a plurality of fins (41) of a fin assembly (40) sited transversally on the profile (10) and on which a rear edge (27) of the heater (20) rests at least partially.
  7. Evaporator according to any one of the preceding claims, characterized by a mounting channel (50) extending continuously between the fluid inlet (12) and the fluid outlet (16) throughout the profile (10) length.
  8. Evaporator according to any one of the preceding claims, characterized by a profile (10) having an S-like form.
  9. Evaporator manufacturing method, for an evaporator according to any one of the preceding claims, consisting of steps:
    - providing the profile having a flat form and containing the fluid channel (11) in a structure of chambers adjacent to each other,
    - collapsing inwardly of the fluid channel (11), being adjacent to the two opposite lateral edges, through pressure from above and from below so as to form a lower groove (54) and an upper groove (52)
    - bending of profile (11) in S form
  10. Evaporator manufacturing method according to claim 9 for an evaporator, consisting of the step of snap-fit mounting a heater (20) and an auxiliary heater (30) to the lower groove (54) and the upper groove (52), respectively.
EP17734015.5A 2016-06-20 2017-06-20 Multichannel evaporator system for a refrigerating device Active EP3472546B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201608398 2016-06-20
PCT/EP2017/065020 WO2017220535A1 (en) 2016-06-20 2017-06-20 Multichannel evaporator system for a refrigerating device

Publications (2)

Publication Number Publication Date
EP3472546A1 true EP3472546A1 (en) 2019-04-24
EP3472546B1 EP3472546B1 (en) 2022-05-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17734015.5A Active EP3472546B1 (en) 2016-06-20 2017-06-20 Multichannel evaporator system for a refrigerating device

Country Status (3)

Country Link
EP (1) EP3472546B1 (en)
PL (1) PL3472546T3 (en)
WO (1) WO2017220535A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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JPS56153766U (en) * 1980-04-18 1981-11-17
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DE102012005248A1 (en) * 2011-05-10 2013-05-16 Bundy Refrigeration Gmbh Multichannel Verdampfersytem

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