EP2195592A2 - Appareil frigorifique avec un support pour une partie d'une conduite de réfrigérant - Google Patents

Appareil frigorifique avec un support pour une partie d'une conduite de réfrigérant

Info

Publication number
EP2195592A2
EP2195592A2 EP08803901A EP08803901A EP2195592A2 EP 2195592 A2 EP2195592 A2 EP 2195592A2 EP 08803901 A EP08803901 A EP 08803901A EP 08803901 A EP08803901 A EP 08803901A EP 2195592 A2 EP2195592 A2 EP 2195592A2
Authority
EP
European Patent Office
Prior art keywords
heat
refrigerant pipe
refrigerant
end strip
holder
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Withdrawn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
EP08803901A
Other languages
German (de)
English (en)
Inventor
Peter Eckartsberg
Michael Kordon
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2195592A2 publication Critical patent/EP2195592A2/fr
Withdrawn legal-status Critical Current

Links

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
    • F25D21/04—Preventing the formation of frost or condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew

Definitions

  • Refrigeration device with a holder for a section of a refrigerant pipe
  • the present invention relates to a refrigerator comprising a connected via a refrigerant pipe refrigerant circuit system with a refrigerant compressor, a condenser and an evaporator for transmitting heat energy from a refrigeration compartment of the refrigerator in the refrigerant cycle system, and a heat-emitting portion of the refrigerant pipe, the heat-conducting contact with at least one end strip, which forms a contact surface for a door seal.
  • DE 25 48 764 A1 discloses a device for preventing condensation of the surface of a refrigerator or freezer in which the housing consists of an inner container, a foam insulation and an outer housing, which is composed essentially of side walls.
  • the contact surfaces of the door seal are heated by a tube connected in the high-pressure part of the refrigerating machine being guided along the side of the contact surface facing the foam. From the figures there it can be seen that the tube is guided inside the foam insulation and parallel to the contact surfaces.
  • US Pat. No. 4,586,348 discloses a refrigeration device having a metallic housing hood with a left and a right side wall, and a ceiling wall connecting the side walls.
  • the housing cover is made of a metal sheet whose front side sheet edges are bent inwardly at right angles to form contact surfaces for a door seal and are then folded over by 180 °.
  • An edge portion of the sheet metal edge adjoining the fold is bent inwards to form a clamping holder for the edges of an inner housing in a U-shaped manner.
  • At the bottom of the U-shaped bend remains a hollow channel in which is guided to prevent condensation on the contact surfaces a refrigerant pipe of the hot side of a refrigerant circuit.
  • After folding the housing cover the refrigerant pipe is installed in the hollow channel and then installed the inner housing.
  • the cavity formed between the housing cover and the inner housing is finally foamed with a foam insulation.
  • a refrigerant pipe is provided to prevent condensation on the contact surfaces for a door seal, which extends along the two lateral and the upper bearing surface of the freezer compartment.
  • the refrigerant pipe is not loosely inserted or clamped in the fold of the outer housing before foaming, but fixed by means of a separate holder.
  • the holder is clamped to the refrigerant pipe and then clamped the holder together with the portion of the refrigerant raw res in the fold. Subsequently, the fixed by means of a holder refrigerant tube is foamed.
  • the object of the invention is to optimize the heat transfer from a refrigerant pipe to a contact surface for a door seal.
  • the length of the additional pipe loop can be kept as short as possible, so that a carryover of heat in the refrigerator is largely prevented. This improves the energy efficiency of the refrigeration device.
  • the heat-emitting portion of the refrigerant pipe may also be in heat-conducting contact only with a part of the running below the refrigeration compartment front bar. It has also been shown that for effective heating, the lower end strip does not necessarily have to be in full heat contact with a portion of the refrigerant piping over its entire length. It has rather, it is shown that it is sufficient to heat only a part of this trim.
  • the heat introduced directly via the section of the refrigerant pipe is distributed sufficiently rapidly by heat conduction within the metallic end strip, so that areas of the end strip which are not directly adjacent to the section of the refrigerant pipe are sufficiently supplied with heat.
  • An improved heat transfer over a short section has the advantage that only the necessary area of the end strip has to be subjected to heat.
  • a reduction in the portion of the refrigerant pipe adjacent to the end strip avoids a heat dissipation into the interior, which can occur if, as in the prior art, the refrigerant pipe would run around or even completely around the device. The consequence of this would be longer compressor run times and thus an increase in energy consumption.
  • a holder according to the invention also simplifies the assembly of the refrigeration appliance and, due to the exactly reproducible position of the refrigerant piping, leads to a reduction in the technical error rate.
  • the prefixed holder for fixing the portion of the refrigerant pipe can be formed only over a part of the lower horizontally extending end strip.
  • the heat-releasing section of the refrigerant piping may be in contact with this heat-conducting contact over a length of between 50% to 25% of the total longitudinal extent of the end strip.
  • the prefixed holder for fixing the portion of the refrigerant pipe may preferably be formed over a length of between 50% to 25% of the total longitudinal extent of the lower horizontally extending end strip. This ensures a sufficiently rapid and uniform heat distribution along the total longitudinal extent of the end strip with the shortest possible section of the refrigerant pipeline.
  • the holder according to the invention which is preferably made of plastic, can be made substantially small, which is cheaper to manufacture, as a significantly larger holder, which would be made of more plastic material, this would be.
  • the heat-releasing portion of the refrigerant piping may be in a middle portion of the end bar with this in heat conductive contact.
  • the pre-fixed holder for fixing the portion of the refrigerant pipe can be formed in a central region of the lower horizontally extending end strip.
  • the middle attachment of the holder is a heat conductive distribution in both opposite directions along the longitudinal extent of the end strip to the same extent with the same speed and size.
  • the section of the refrigerant pipe can be formed from a part of a pipe loop of the high-pressure side of the refrigerant circuit system, which extends in the region of the bottom of the refrigerator from a rear side to the end strip.
  • the pipe loop of the high-pressure side of the refrigerant circuit system can be externally heat-insulated or even freely. By guiding the pipe loop outside the thermal insulation, no heat from the pipeline into the interior of the refrigerator can be dragged.
  • the heat exchanger length of the refrigeration cycle increases because the refrigerant piping is lengthened altogether and in particular in the region of the pipe loop can additionally release heat to the environment, resulting in an overall improvement in energy consumption.
  • the heat-emitting portion of the refrigerant pipe can be in heat-conducting contact by means of a prefixed to the front strip holder with the front strip.
  • the holder serves to fix a portion of the refrigerant piping along a back side of end strips that form abutment surfaces for a door seal.
  • the holder according to the invention has first holding means for prefixing the holder to the back of the end strips and second holding means for fixing the portion of one of the refrigerant pipes to the prefixed holder.
  • the holder can be attached due to the first holding means at a predetermined position in a well-defined position on the front strip.
  • the second holding means position and fix the section of the refrigerant pipe in an equally unique and exactly reproducible position to the holder, so that overall a clear and exactly reproducible positioning of the portion of the refrigerant pipe with respect to the front strip is achieved.
  • the portion of the refrigerant pipe to be held is preferably formed by a part of the refrigerant circuit either just before the condenser.
  • the portion of the refrigerant pipe to be held is thus formed by the overpressure side of the refrigerant circuit, which has significantly higher temperatures, than in the region of the low pressure side, which is not suitable for the provision of heat.
  • the holder according to the invention is provided, which forms a connecting part so far.
  • This connecting part or the holder ensures a secure heat transfer from the heating tube to the metallic front strip.
  • the connecting part For the connecting part to fulfill its task, it must be fixed on the front strip. This can be achieved by a force-locking or a positive connection.
  • the connecting part made of plastic and is locked in the front strip.
  • the first holding means may be a form-fitting retaining latching element.
  • the locking element fixes the holder on a rear side of a front strip of the refrigerator.
  • the front strip is part of a folded edge portion of a metal wall of the refrigerator.
  • the front bar may be the base of a U-shaped folded edge portion. The holder is clamped or latched by means of the first holding means between the two legs of the U-shaped folded over edge portion.
  • the locking element may be formed in particular for the positive locking on a sheet metal bending section of the front strip.
  • a form-locking locking ensures the position-correct fixing of the holder on the front strip.
  • one or more locking elements may be provided on the holder.
  • Each locking element can carry a latching lug or a latching projection, which engages in a corresponding recess on a sheet bending section of the front strip and locked there.
  • the counter-latching element corresponding to the latching element is produced in this respect by one or more punched-out sections in a bent sheet metal part which has the front strip.
  • the second holding means may be configured to fix the portion of the refrigerant piping as one or more tuck-like catching clips engaging the portion of the refrigerant piping.
  • the one or more second holding means are integrally formed with the holder.
  • the second holding means may in particular be adapted to the contour of the portion of the refrigerant pipe to be held. Does the refrigerant Pipe on a circular cross-section, so the pincer-like the section of the refrigerant pipe cross-locking circlles can have a circular arc shape.
  • Each locking clip may have two opposing locking tongues, each having a clamping surface for opposite sides of the portion of the refrigerant pipe and a Anlaufabschrägung for expanding the locking tongues during the depression of the portion of the refrigerant pipe in the locking clips. If the section of the refrigerant pipe is pressed from the outside against the two start chamfers of two opposing locking tongues, the indentation force causes a spreading of the opposing locking tongues. The latching tongues thus deviate from one another, so that the latching clips expands so that the section of the refrigerant piping can reach behind the latching tongues.
  • the latching tongues Due to the elastic material properties of the latching tongues or of the holder, the latching tongues spring back into their starting positions and the section of the refrigerant tubing snaps into the holder. Since both the locking clips for fixing the portion of the refrigerant pipe, as well as the locking elements for fixing the holder on the front strip firmly connected to the holder, or may be integrally formed with this, the exact installation position of the section of the refrigerant pipe is opposite the front strip reproducible set.
  • Figure 1 is a perspective view of a refrigerator with a refrigerant cycle system
  • Figure 2 is a partial perspective view of the back of the refrigerator of Figure 1 from below, with removed refrigerant compressor.
  • FIG. 3 is a partial sectional view through a holder according to the invention in the region of a front, arranged below the end strip.
  • a refrigerator 1 according to FIG. 1 has a double-walled, foamed with insulating foam housing 2, which forms a closable by means of the first door 3 lower freezer compartment 4 and a closable by means of a separate second door 5 cold room 6.
  • the cold room 6 is divided by an intermediate wall 7 in an upper cooling compartment 8 and a lower fresh food compartment 9.
  • the fresh food compartment 9 is operated at temperatures of just over 0 ° Celsius and is preferably used for keeping fresh perishable goods, such as vegetables and salads.
  • the refrigerating compartment 8 is operated at temperatures of about 8 ° to 6 ° Celsius and is used to store the other refrigerated goods.
  • an evaporator plate 10 is shown by way of example on a rear-side inner wall of the fresh food compartment 9.
  • the evaporator plate 10 is shown without further attachments and with removed Frischhaltefachschub- for simplified representation.
  • the refrigeration device 1 is operable by means of a refrigerant cycle system 1 1.
  • the refrigerant circuit system 1 1 in general a refrigerant compressor 12, a condenser 13 and an evaporator 14, which is conductively connected to the evaporator plate 10 conducts heat and for the transmission of heat energy from a refrigeration compartment of the refrigerator 1 in the refrigerant circuit system 11.
  • the temperature of the evaporator plate 10 can be used.
  • a temperature sensor 15 can be used, which is fastened by means of a holder 16 in the refrigeration device 1 such that its sensor surface 17 can detect the temperature of the evaporator plate 10.
  • a frame-like circumferential first door seal 17 is fixed, which rests in a closing the freezer compartment 4 position of the first door 3 at a first circulating around the freezer compartment 4 end strip 18 of the refrigeration device 1.
  • a frame-like circumferential second door seal 19 is attached to an inner side of the second door 5, in a the refrigerator compartment 8 and the fresh food compartment 9 closing position of the second door 5 at a second, around the cooling compartment 8 and the fresh food compartment 9 circumferential end strip 20th of the refrigeration device 1 is applied.
  • Fig. 2 shows the refrigerator 1 from a door opposite the doors 3 and 5, rear partial view. It is shown the lower part of the refrigeration device 1 with removed rear wall and removed refrigerant compressor 12. From that shown in Fig. 1 Evaporator 14 leads a first portion 21 a of a refrigerant pipe 21 to an inlet of the refrigerant compressor 12. From a drain of the refrigerant compressor 12 runs on the hot side of the refrigerant cycle system 1 1, a second portion 21 b of the refrigerant pipe 21 to a pipe loop 21 c. The pipe loop 21 c is guided from the back of the refrigerator 1 to the front along a floor 22.
  • bottom-side end strip 18a runs a third section 21 d of the pipe loop 21c and the refrigerant pipe 21 along a rear side of the end strip 18a.
  • the third portion 21 d of the pipe loop 21 c is held by means of a holder 23 in a fixed position with respect to the end strip 18a.
  • the holder 23 is shown in Fig. 3 in a sectional view.
  • the illustrated view shows a section through the lower bottom-side end strip 18a of the refrigeration device 1 in the middle of the width of the end strip 18a in a lower corner region of the refrigeration device 1.
  • a bent sheet metal part 24 has a bottom-side planar first sheet portion 24a.
  • the front strip 18a is adjoined to the first sheet bending section 24a in an upward bent second sheet bending section 24b.
  • the front strip 18a is continued to extend in a third sheet metal bending section 24c straight upward.
  • the sheet is folded over by 360 °.
  • the holder 23 has a substantially U-shaped configuration in cross-section, which is adapted to the shape and size of the sheet metal bending sections 24a to 24d and the receiving section 24f.
  • the holder 23 is pressed to its mounting from the back of the end strip 18 a in the trough-shaped bent sheet metal part 24 and there jammed or latched by means of a latching element 26 a.
  • the latching element 26a forms a first holding means 26 for prefixing the holder 23 on the rear side of the end strip 8a.
  • the second holding means 27 is formed as a pliers-like portion 21 d of the pipe loop 21 c cross-latching clips 27 a. Every snap clip 27a has two opposite latching tongues 28a and 28b. At the free ends of each latching tongue 28a, 28b, a run-on bevel 29a, 29b is formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Refrigerator Housings (AREA)

Abstract

L'invention concerne un appareil frigorifique qui présente : un système (11) de circulation d'agent réfrigérant, relié au moyen d'une conduite de réfrigérant (21) et comprenant un compresseur de réfrigérant (12), un condenseur (13) et un évaporateur (14) pour transférer l'énergie calorifique d'un compartiment de froid (8, 9) de l'appareil frigorifique (1) dans le système (11) de circulation d'agent réfrigérant; et une partie (21d) de la conduite de réfrigérant (21) qui cède de la chaleur et qui est en contact thermoconducteur avec au moins une bordure frontale (18, 18a, 20) qui forme une surface d'application (26) pour un joint d'étanchéité de porte (17, 19). L'invention vise à optimiser le transfert de chaleur d'une conduite de réfrigérant (21) à une surface d'application (26) pour un joint d'étanchéité de porte (17, 19). A cet effet, la partie (21d) de la conduite de réfrigérant (21) qui cède de la chaleur est en contact thermoconducteur exclusivement avec une bordure frontale (18a) s'étendant en dessous du compartiment de froid (8, 9).
EP08803901A 2007-10-01 2008-09-09 Appareil frigorifique avec un support pour une partie d'une conduite de réfrigérant Withdrawn EP2195592A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710047006 DE102007047006A1 (de) 2007-10-01 2007-10-01 Kältegerät mit einem Halter für einen Abschnitt einer Kältemittelrohrleitung
PCT/EP2008/061933 WO2009047067A2 (fr) 2007-10-01 2008-09-09 Appareil frigorifique avec un support pour une partie d'une conduite de réfrigérant

Publications (1)

Publication Number Publication Date
EP2195592A2 true EP2195592A2 (fr) 2010-06-16

Family

ID=40384414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08803901A Withdrawn EP2195592A2 (fr) 2007-10-01 2008-09-09 Appareil frigorifique avec un support pour une partie d'une conduite de réfrigérant

Country Status (5)

Country Link
US (1) US8899070B2 (fr)
EP (1) EP2195592A2 (fr)
DE (1) DE102007047006A1 (fr)
RU (1) RU2473851C2 (fr)
WO (1) WO2009047067A2 (fr)

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JP6596825B2 (ja) * 2015-01-13 2019-10-30 富士電機株式会社 自動販売機のドレン水処理装置
KR102599885B1 (ko) 2015-10-15 2023-11-08 삼성전자주식회사 냉장고
DE102019211039A1 (de) 2019-07-25 2021-01-28 BSH Hausgeräte GmbH Kältegerät und Wasserauslaufanordnung für ein Kältegerät
US10914514B1 (en) 2020-01-17 2021-02-09 Whirlpool Corporation Illuminated trim assembly for appliance
CN111623564B (zh) * 2020-02-20 2021-08-24 上海朗绿建筑科技股份有限公司 多腔体水力模块
CN111964249A (zh) * 2020-08-24 2020-11-20 四川省龙栢腾科技有限公司 一种蒸发器安装结构
US11340008B1 (en) 2021-01-20 2022-05-24 Whirlpool Corporation Appliance trim breaker assembly
CN115875894A (zh) * 2021-09-29 2023-03-31 深圳市帝迈生物技术有限公司 样本检测装置及其试剂瓶冷藏装置
US12152825B2 (en) * 2022-01-18 2024-11-26 Whirlpool Corporation Toe-kick

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Also Published As

Publication number Publication date
US20100199708A1 (en) 2010-08-12
RU2010112830A (ru) 2011-11-10
WO2009047067A2 (fr) 2009-04-16
US8899070B2 (en) 2014-12-02
DE102007047006A1 (de) 2009-04-02
WO2009047067A3 (fr) 2009-08-06
RU2473851C2 (ru) 2013-01-27

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