EP3904793A1 - Moyens de fixation de chauffage d'évaporateur et appareil de refroidissement doté de celui-ci - Google Patents

Moyens de fixation de chauffage d'évaporateur et appareil de refroidissement doté de celui-ci Download PDF

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Publication number
EP3904793A1
EP3904793A1 EP21165711.9A EP21165711A EP3904793A1 EP 3904793 A1 EP3904793 A1 EP 3904793A1 EP 21165711 A EP21165711 A EP 21165711A EP 3904793 A1 EP3904793 A1 EP 3904793A1
Authority
EP
European Patent Office
Prior art keywords
evaporator
fixing means
heater
loop
wire
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.)
Withdrawn
Application number
EP21165711.9A
Other languages
German (de)
English (en)
Inventor
Mehmet YASAR
Yasin AKSIN
Veysi Ercan
Mert Tosun
Seren ATAKURU
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 EP3904793A1 publication Critical patent/EP3904793A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • F25D23/00—General constructional features

Definitions

  • the present invention relates to a fixing means, in particular to a fixing means having improved fixing ability.
  • frost occurring on the surface of the evaporator as a result of moisture in the air must be removed on a regular basis.
  • De-frosting is realized by means of a heater at least partially surrounding the evaporator.
  • the heater is activated by a control unit depending on the frost accumulation on the surface of the evaporator.
  • the frost accumulation is detected by different methods including but not limited to visual sensors or temperature sensors.
  • a method of removing frost is simply achieved by activating the heater on predetermined time intervals. Removal of frost is crucial to increase the energy efficiency of the cooling appliance.
  • Heaters are placed onto the evaporators by means of retaining clips wherein the retaining clips retain the heater on the evaporator by keeping the heater next to the fins of the evaporator.
  • US3783635 A prior art publication in the technical field of the present invention may be referred to as US3783635 among others, the document disclosing a replaceable defrost heater for fin and tube evaporator and spring retaining clip for same.
  • EP1022528A2 A prior art publication in the technical field of the present invention may be referred to as EP1022528A2 among others, the document disclosing a fixing system designed for accommodating the heating rods of an evaporator.
  • An objective of the present invention is to provide a fixing means wherein the fixing means provides fixing of heater onto the evaporator in a convenient manner.
  • Another objective of the present invention is to provide a fixing means having a monolithic structure providing a rigid fixing of fixing means onto the evaporator.
  • the method realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims comprises a cooling appliance.
  • the cooling appliance comprises a body wherein the body encloses at least one refrigerating chamber into which the articles to be cooled are placed.
  • An evaporator is provided at a location close to the rear of the cooling appliance wherein the evaporator is configured to cool a flow of air passing through the evaporator.
  • the refrigerant is compressed by a compressor.
  • a heater is provided adjacent to the evaporator.
  • the heater is an electrical resistance and is energized by means of a control unit.
  • the heater is energized for predetermined time intervals and according to the frost formation level on the evaporator.
  • the heater abuts against the fins of the evaporator.
  • the heater runs parallel to the evaporator.
  • the fins of the evaporator are provided with a canal into which the heater is seated. Upon placing the heater inside the said canal, the heater and the fins of the evaporator forms an almost flush surface.
  • a fixing means is provided to attach the heater onto the evaporator.
  • the fixing means is provided with a first end and a second end.
  • the fixing means is configured to form a loop around the evaporator such that the first end and the second end join and close the loop.
  • the fixing means forms the loop around the evaporator fixing the heater with respect and on to the evaporator.
  • the fixing means is in the form of a wire.
  • the fixing means that is in the form of a wire occupies a small cross-sectional area. As a result, the fixing means does not obstruct the flow of air through the evaporator.
  • the first end and the second end are produced as an integral part of the fixing means. This provides easy production of the fixing means. Another advantageous effect provided by the integral structure is that the fixing means has a rigid structure.
  • the first end and the second are shaped as hooks.
  • the assembly line operator slides the evaporator inside the fixing means, twists the hook shaped first end and the second end thereby fixing the fixing means with respect to the evaporator.
  • Hook shaped ends provides ease of assembly.
  • the loop is shaped so as to match the circumferential shape of the evaporator.
  • the cross-sectional area of the evaporator is rectangular.
  • the loop shape of the fixing means is rectangular, and form fittingly matches the shape of the evaporator.
  • the fixing means has recessed areas.
  • the recessed areas match the location of the heater when the fixing means is placed onto the evaporator. By means of the recessed areas, bumps on the fixing means is prevented.
  • a method of producing the fixing means is provided.
  • a wire is provided.
  • the wire is then bent into a predetermined shape.
  • the predetermined shape is configured to match the shape of the circumference of the evaporator.
  • a loop is formed.
  • the ends of the wire are bent so as to form a pair of hooks at each end.
  • the evaporator is then inserted inside the fixing means. The hooks are interlocked, therefore fixing the heater relative to the evaporator.
  • the heater is attached onto the evaporator by means of the fixing means.
  • the fixing means reduces the number of parts required to successfully attach the heater onto the evaporator.
  • the present invention relates to a cooling appliance comprising: a body having a refrigerating chamber; an evaporator (1) configured to cool a flow of air by cycling a refrigerant compressed by a compressor; a heater (2) configured to heat the evaporator () to prevent frosting of the same; a fixing means (3) to attach the heater (2) onto the evaporator (1), the fixing means (3) having a first end (4) and a second end (5).
  • the present invention relates to a cooling appliance wherein the fixing means (3) is configured to form a closed loop around the evaporator (1) whereby the said ends (4,5) join.
  • the evaporator (1) is preferably provided with canals running along the length of the evaporator (1) into which the heater (2) is placed.
  • the heater (2) is an electrical heater. Upon being placed inside the said canal, the heater (2) forms an almost flush surface with the surface plane of the fins of the evaporator (1).
  • the fixing means (3) which has a monolithic structure is slidably placed onto the evaporator (1) extending along the periphery of the evaporator (1) and fixing the heater (2) inside the canal. As a result, the heater (2) is rigidly fixed with respect to the evaporator (1).
  • the first end (4) and the second end (5) of the fixing means (3) are remain next to each other.
  • the first end (4) and the second end (5) are then connected to each other therefore closing the loop and ensuring that the fixing means (3), and the heater (2), is fixed onto the evaporator (1).
  • a single fixing means (3) is sufficient to retain the heater (2) onto the evaporator (1).
  • fixing means (3) Another advantageous effect provided by the fixing means (3) is that the first end (4) and the second end (5) removably interlocks with each other in a manner sufficient to ensure that the heater (2) remains on the evaporator (1) during the transport of the evaporator (1).
  • a further advantage provided by fixing the heater (2) onto the evaporator (1) is that the heater (2) remains adjacent to the evaporator (1) which eliminates the possibility of the heater (2) being separated from the evaporator (1), eliminating the possibility of a fire occurring due to contact between the heater (2) and the rear panel of the cooling appliance.
  • the fixing means (3) is in the form of a wire.
  • the fixing means (3) is the form of a wire and surrounds the evaporator (1).
  • flow of air through the evaporator (1) is not obstructed.
  • Another advantageous effect of the fixing means (3) being a wire is that the production of the fixing means (3) is economical.
  • the said end (4,5) are integral with the fixing means (3).
  • the first end (4) and the second end (5) are an integral part of the fixing means (3).
  • the said ends (4,5) are formed by bending the fixing means (3) towards its end points. This provides convenience in production meaning that the production of the said ends (4,5) along with the fixing means (3) is economical.
  • Another advantageous effect of said ends (4,5) is that the integral embodiment provides a rigid structure.
  • a further advantageous effect of said ends (4,5) being integral with the fixing means (3) is that a single fixing means (3) is sufficient to hold the heater (2) in place. As a result, use of multiple fixing means (3) becomes obsolete which in turn reduces man hour required for assembly of the fixing means (3).
  • the said ends (4,5) are shaped as hooks.
  • the hook shaped ends (4,5) are easy to assemble. The assembly line operator simply needs to slide the evaporator (1) into the fixing means (3). Afterwards by using the hook shaped ends (4,5) the fixing means (3) is fixed onto the evaporator (1).
  • the said ends (4,5) not only provides easy assembly but also allows the fixing means (3) to be removed from the evaporator (1) in a convenient manner should the need arise.
  • the loop is configured to match the circumferential shape of the evaporator (1).
  • the loop is in the shape of a rectangular.
  • the fixing means (3) comprises recessed areas configured to match the shape of the heater (2).
  • the recesses areas on the fixing means (3) provides a seating surface for the heater (2).
  • the fixing means (3) extends linearly and does not comprise any bumps.
  • another advantageous effect of the recessed areas is that they act as a guide for the assembly line operator indicating the intended location of the fixing means (3) on the evaporator (1).
  • the method of producing a fixing means (3) comprising the steps of: providing a wire; bending the wire to form a loop; bending the ends of the wire to form hooks; inserting an evaporator inside the loop; interlocking the hooks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Defrosting Systems (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP21165711.9A 2020-04-27 2021-03-29 Moyens de fixation de chauffage d'évaporateur et appareil de refroidissement doté de celui-ci Withdrawn EP3904793A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR2020/06562A TR202006562A2 (tr) 2020-04-27 2020-04-27 Evaporatör isitici sabi̇tleme vasitasi ve kullanildiği soğutucu ci̇haz

Publications (1)

Publication Number Publication Date
EP3904793A1 true EP3904793A1 (fr) 2021-11-03

Family

ID=75277932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21165711.9A Withdrawn EP3904793A1 (fr) 2020-04-27 2021-03-29 Moyens de fixation de chauffage d'évaporateur et appareil de refroidissement doté de celui-ci

Country Status (2)

Country Link
EP (1) EP3904793A1 (fr)
TR (1) TR202006562A2 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB762576A (en) * 1953-04-10 1956-11-28 Heron Heating Devices Ltd Improvements relating to electric defrosting apparatus for use in refrigerating apparatus
US3783635A (en) 1972-07-25 1974-01-08 Dunham Bush Inc Replaceable defrost heater for fin and tube evaporator and spring retaining clip for same
JPS5114352U (fr) * 1974-07-19 1976-02-02
JPS59120891U (ja) * 1983-02-04 1984-08-15 三菱電機株式会社 冷却装置の除霜装置
EP1022528A2 (fr) 1999-01-25 2000-07-26 KÜBA KÄLTETECHNIK GmbH Dispositif de fixation
KR20030059621A (ko) * 2002-01-03 2003-07-10 엘지전자 주식회사 냉장고용 열교환기
JP2008151378A (ja) * 2006-12-15 2008-07-03 Matsushita Electric Ind Co Ltd 除霜装置付き冷却器と除霜装置付き冷却器を備えた冷蔵庫

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB762576A (en) * 1953-04-10 1956-11-28 Heron Heating Devices Ltd Improvements relating to electric defrosting apparatus for use in refrigerating apparatus
US3783635A (en) 1972-07-25 1974-01-08 Dunham Bush Inc Replaceable defrost heater for fin and tube evaporator and spring retaining clip for same
JPS5114352U (fr) * 1974-07-19 1976-02-02
JPS59120891U (ja) * 1983-02-04 1984-08-15 三菱電機株式会社 冷却装置の除霜装置
EP1022528A2 (fr) 1999-01-25 2000-07-26 KÜBA KÄLTETECHNIK GmbH Dispositif de fixation
KR20030059621A (ko) * 2002-01-03 2003-07-10 엘지전자 주식회사 냉장고용 열교환기
JP2008151378A (ja) * 2006-12-15 2008-07-03 Matsushita Electric Ind Co Ltd 除霜装置付き冷却器と除霜装置付き冷却器を備えた冷蔵庫

Also Published As

Publication number Publication date
TR202006562A2 (tr) 2021-11-22

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