EP2976583A1 - Appareil de froid et soupape de distribution d'air associée - Google Patents

Appareil de froid et soupape de distribution d'air associée

Info

Publication number
EP2976583A1
EP2976583A1 EP14710243.8A EP14710243A EP2976583A1 EP 2976583 A1 EP2976583 A1 EP 2976583A1 EP 14710243 A EP14710243 A EP 14710243A EP 2976583 A1 EP2976583 A1 EP 2976583A1
Authority
EP
European Patent Office
Prior art keywords
outlet
inlet
distribution valve
open position
air distribution
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
EP14710243.8A
Other languages
German (de)
English (en)
Other versions
EP2976583B1 (fr
Inventor
Rainer Weser
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 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 Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2976583A1 publication Critical patent/EP2976583A1/fr
Application granted granted Critical
Publication of EP2976583B1 publication Critical patent/EP2976583B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements

Definitions

  • the present invention relates to a refrigerator, in particular a domestic refrigerator, and an air distribution valve, which is used in such a refrigerator to distribute cooled air on compartments of the refrigerator.
  • Refrigeration appliances with several storage chambers held at different temperatures, it is known to cool a storage chamber in which it is acted upon with cold air from a colder chamber.
  • This colder chamber can in turn a storage chamber, in particular a freezer, the
  • Refrigerating device can also be an evaporator chamber, which itself does not receive refrigerated goods, and is distributed from the cold air to the various storage chambers.
  • a flap is needed between the colder chamber and the chamber cooled thereby to release the flow of cold air when needed, or to shut it off when it is not desired.
  • the required multiple flaps and the actuators required for their operation lead to a considerable installation effort.
  • the object of the invention is to provide a refrigeration device or an air distribution valve for a refrigeration device, which make it possible with a simple, efficiently mountable structure to control the distribution of cold air to chambers of the refrigerator.
  • a air distribution valve having a housing having at least a first and a second inlet and at least first and second outlet and a control body in the housing about an axis between a first open position in which it the first inlet of the housing communicates with the first outlet and blocks the second outlet from the second inlet, and is rotatable in a second open position, in which it shuts off the first outlet from the first inlet and connects the second inlet to the second outlet.
  • the first and second inlets are aligned with each other in the direction of the axis so that both inlets are conveniently shot at a same cold chamber can, from which the cold air is distributed to connected to the outlets storage chambers of the refrigerator.
  • the control body is preferably subdivided in the direction of the axis into a first section controlling the passage of air between the first inlet and outlet and a second section controlling the passage of air between the second inlet and outlet.
  • the first inlet and outlet in a transverse plane to the axis are preferably bounded by two respective walls, and the control body has two walls which connect continuously in the first open position, each one of the walls of the inlet and the outlet ,
  • corresponding structure is preferably also provided for the second inlet and outlet in section along a second transverse to the axis of the cutting plane.
  • Control body connect both the first inlet to the first outlet and the second inlet to the second outlet, although the passage cross section between the first inlet and outlet is smaller than in the first open position and the passage cross section between the second inlet and outlet is smaller than in the second open position.
  • the sum of the passage cross sections in the intermediate position is preferably equal to the passage cross section between the first inlet and outlet in the first
  • the air flow through the valve during rotation between the first and second open position can be kept substantially equal. If the passage cross section between the first inlet and outlet in the first open position and the passage cross section between the second inlet and outlet in the second Open position are different, the sum of the passage cross sections in the intermediate position is preferably between the passage cross sections of the
  • the first inlet and outlet may be divided into two parts at axially spaced first segments of the housing between which at least a second segment of the housing is located each having at least a part of the second inlet and outlet.
  • the second inlet and the second outlet may also be divided into spaced-apart segments; However, since the second outlet can open into the chamber supplied by him substantially centrally, a sufficiently uniform distribution of cold air can be achieved in this chamber even without a subdivision of the second outlet.
  • the housing still has a third inlet and a third outlet, and in a third open position, the control body connects the third inlet to the third outlet, while the first and second inlets and outlets are each blocked from each other.
  • the control body connects the third inlet to the third outlet, while the first and second inlets and outlets are each blocked from each other.
  • control body is rotatable from the second via the first to the third open position here.
  • control body should connect both the first inlet with the first outlet and the third inlet with the third outlet in an intermediate position between the first and third open position to interrupt the cold air flow at the transition between first and third open position to avoid.
  • the passage cross-section between the first inlet and outlet in the intermediate position is smaller than in the first open position and the Passage cross section between the third inlet and outlet in the intermediate position smaller than in the third open position.
  • the third inlet is aligned in the direction of the axis with the first and the second inlet to be supplied from the same chamber as this with cold air.
  • An electric motor for rotating the control body may be part of the
  • Be air distribution valve In order to approach the various open positions reproducible, in particular a stepper motor can be used; Alternatively, an angle sensor may be provided to detect the orientation of the control body and to control the electric motor according to the detected orientation.
  • the invention further relates to a refrigeration device, in particular a household refrigerator, with an air distribution valve as described above and at least a first
  • Bearing chamber in which the first outlet opens, and a second storage chamber into which the second outlet opens.
  • a bypass outside the air distribution valve may extend from the evaporator chamber to one of the storage chambers. So only a part of the by the
  • Controlled air evaporator chamber circulating air flow through the air distribution valve the remainder passes through the bypass always in said a storage chamber, generally the coldest storage chamber of the device. Since the other storage chambers receive cold air exclusively via the air distribution valve, the throughput of cold air through these chambers is significantly lower than the throughput through the coldest chamber, and the risk of hypothermia is low.
  • these storage chambers are arranged on different sides of a partition, and the air distribution valve is disposed in the partition itself.
  • the inlets are preferably located on the same side of the partition as the first outlet.
  • they can receive cold air from the same chamber into which the first outlet emits cold air, or a cold chamber, in particular an evaporator chamber from which the air distribution valve is fed with cold air, and one of the storage chambers, preferably the coldest storage chamber, can save energy on the same side be provided the partition.
  • the air distribution valve has a third outlet as described above, it can be conveniently connected to a third storage chamber. Further features and advantages of the invention will become apparent from the following
  • Fig. 1 is a perspective view of an air distribution valve according to the invention
  • FIG. 2 shows the air distribution valve of Figure 1 with cut housing and in
  • FIG 3 shows the cutaway housing of the air distribution valve without the control body.
  • Fig. 5 is a view of the housing from above;
  • Fig. 6 is a view of the housing from below; 7 shows sections transversely to the axis of rotation of the control body along the planes designated A, B, C, D in FIGS. 5 and 6 in a first open position;
  • FIG. 8 shows analogous sections to FIG. 7 in a second open position
  • FIG. 9 shows sections analogous to FIG. 7 in a third open position
  • FIG. 10 shows analogous sections to FIG. 7 according to a second embodiment of the invention
  • Fig. 1 1 shows a schematic cross section through a refrigeration device with a
  • Air distribution valve according to the present invention.
  • Fig. 1 shows the air distribution valve according to a first embodiment of the invention in a perspective view.
  • a housing 1 of the air distribution valve has in
  • An inlet opening 2 is formed on an underside of the housing 1 and extends in the axial direction in
  • the inlet opening 2 is delimited by a wall 3 extending in a straight line in the axial direction.
  • a parallel to the wall 3, also the inlet opening 2 bounding wall 4 can be seen in Fig. 3, which shows the housing 1 in the cut state.
  • An outlet opening 12 at the top of the housing 1 is bounded by parallel to the longitudinal axis walls 13, 14 and divided by a connecting the walls 13, 14 web 15 in outlets 16, 17.
  • the outlets 16, 17 overlap in the axial direction with the sections 9, 10 of the inlet opening 2.
  • Further outlet openings 18, 19, which overlap in the axial direction with the sections 8, 1 1, are on a side facing away from the viewer in Fig. 1 Housing 1 formed.
  • FIG. 2 shows the cut-open housing 1 with a control body 20 rotatably received therein.
  • the control body 20 is separated into a plurality of sections 36 along its axis by a plurality of circular plates 21, each with one of the webs 5 and the web 15 in a same plane.
  • 37, 38, 39 structured.
  • Each of these sections 36, 37, 38, 39 comprises two curved walls connecting the panels 21 delimiting the respective section. In the case of the two middle sections 37, 38, these walls are denoted by 22, 23 and 24, 25, respectively.
  • the two outer sections 36, 39 are each only half as long as the middle sections 37, 38, in each case only one of the two walls, denoted by 26, can be seen in FIGS. 2 and 4, respectively.
  • An axle journal 28 of the control body 20 serves for coupling to an electric motor which, not shown in FIGS. 1-4, is provided for accommodation in a chamber 29 of the housing 1.
  • FIGS. 5 and 6 show the housing 1 in a view from above or from below, respectively.
  • FIG. 6 shows the outlet openings 18, 19 and the elongate rectangular inlet opening 2 subdivided into sections 8 to 11.
  • the mode of operation of the air distribution valve will be explained with reference to FIGS. 7 to 9, which respectively show sections along that in FIGS. 5 and 6 with A, B, C and D indicating levels.
  • the plane A passes through the chamber 29 and housed therein, here denoting 31 electric motor.
  • On the engaging in the chamber 29 journals 28 an orientation mark 32 is shown.
  • To the axle pin 28 around three sensors 33 for detecting the orientation mark 32 are shown on the one hand in the orientation of FIG. 7, on the other hand in the orientations of Figs.
  • Fig. 7 shows the orientation mark 32 in a 12 o'clock position. As can be seen in section B, in this orientation the wall 26 of the control body 20 continuously extends the wall 3 of the inlet opening 2 to an outer wall 34 of the extension 30, and a wall 27 of the control body 20 hidden in Figs. 2 and 4 forms one
  • Outlet opening 19 along the plane B 'in Fig. 5 and 6 would look just like the section along the plane B and is therefore not specifically shown. At the inlet opening 2, the housing 1 fed cold air, the valve can therefore only on the
  • the walls 24, 25 form a continuous transition between the walls 3, 4 of the inlet 10 and 13, 14 of the outlet 17, while the inlets 8, 9 are blocked.
  • FIG. 10 shows, in a section analogous to FIG. 7, a simplified variant of FIG
  • Fig. 1 1 shows a schematic cross section through a household refrigeration appliance, in which an air distribution valve of the type described above, here designated 50, is installed.
  • the refrigerator is a combination refrigerator with a cold lower zone 51 and a warmer upper zone 52, which are separated from each other by a horizontal partition 53.
  • An intermediate wall 54 divides the cold zone 51 into a freezer compartment 55 and an arranged between the freezer compartment 55 and the partition wall 53
  • the warmer zone 52 contains e.g. a normal cooling compartment 63 and a fresh cooling compartment 62.
  • the evaporator chamber 56 communicates with the freezer compartment 55. Air entered through the suction openings 57 into the evaporator chamber 56 is sucked through a vaporizer 59 by a fan 58 and reaches the inlet opening 2 of the air distribution valve 50 in a near-back wall Area of the evaporator chamber 56th of this near the back wall branches off a bypass 67 down. Over this, a large part of the air flow, typically 50-75%, passes directly back into the freezer compartment 55. The remainder of the air flow enters the air distribution valve 50, depending on the position of the valve 50 the normal cooling compartment 63, the fresh cooling compartment 62 or the freezer 55 to be supplied.
  • the position of the air distribution valve 50 shown in Fig. 1 1 corresponds to that of FIG. 9.
  • the air distribution valve 50 assumes this position when one in the upper
  • Storage chamber of the warmer zone 52 here the normal cooling compartment 63, arranged temperature sensor indicates cooling demand. In this position that connects
  • the air channel 61 passes through the lower storage chamber of the warm zone 52, here the fresh cooling compartment 62, in order to
  • outlet 16 of the air distribution valve 50 subsequent air channel opens at 64 in the fresh cooling compartment 62 a.
  • the both sides of the cutting plane openings 18, 19 of the outlet 6 open on both sides of the fan 58 through the evaporator chamber 56 extending pipe sections 66 in the freezer 55th
  • Air distribution valve 50 are switched to this compartment, without intermittently interrupting the flow of air through the evaporator 59.
  • the air-distribution valve 50 In order to switch from the orientation shown in FIGS. 11 or 9 to that of FIG. 8 and thus supply the fresh-cooling compartment 62, the air-distribution valve 50 must pass through the position of FIG. 7, in which the freezer compartment 55 is supplied. Since the freezing compartment 55 has the most cooling requirements, the orientation of FIG. 7 is the orientation that the
  • Air distribution valve 50 most frequently occupies, and the other orientations can be reached with short adjustment paths. In the rather rare case that it is necessary to switch between cooling the normal cooling compartment 63 and the fresh cooling compartment 62, it is not disturbing if in between times the freezer 55 is also acted upon via the valve 50 with cold air. Therefore, the fan 58 can continue running during the switching. If, on the other hand, the valve 50 were to apply cold air to one of the two warmer compartments 62, 63 in the position of FIG. 7, an undesirable overcooling could occur in this compartment when switching between the other compartments.
  • the air flow rate through the evaporator 59 is independent of the position of the valve 50, the position of the valve 50 also does not affect the temperature of the cold air emerging from the evaporator chamber 56. Due to the distribution of the cold air on the valve 50 on the one hand and the bypass 67 on the other hand, it is still possible to lower the air flow in normal cooling compartment 63 and the fresh cooling compartment 62 set in the freezer 55 and so to avoid excessive cooling of refrigerated goods in the warmer subjects.
  • Control body 57 intake

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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Multiple-Way Valves (AREA)

Abstract

L'invention concerne une soupape de distribution d'air, en particulier pour la distribution d'air froid sur différentes chambres d'un appareil de froid, présentant un boîtier (1) présentant au moins une première et une deuxième entrée (7, 9, 10) et un au moins une première et une deuxième sortie (6, 16, 17) et un corps de commande (20) qui est rotatif dans le boîtier (1) autour d'un axe entre une première position ouverte, dans laquelle il relie la première entrée (6) du boîtier (1) à la première sortie (7) et ferme la deuxième sortie (16) par rapport à la deuxième entrée (9), et une deuxième position d'ouverture, dans laquelle il ferme la première sortie (6) par rapport à la première entrée (7) et relie la deuxième entrée (9) à la deuxième sortie (16).
EP14710243.8A 2013-03-18 2014-03-13 Appareil frigorifique et soupape de distribution d'air pour celui-ci Not-in-force EP2976583B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013204737.1A DE102013204737A1 (de) 2013-03-18 2013-03-18 Kältegerät und Luftverteilerventil dafür
PCT/EP2014/054945 WO2014146966A1 (fr) 2013-03-18 2014-03-13 Appareil de froid et soupape de distribution d'air associée

Publications (2)

Publication Number Publication Date
EP2976583A1 true EP2976583A1 (fr) 2016-01-27
EP2976583B1 EP2976583B1 (fr) 2018-07-11

Family

ID=50280373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14710243.8A Not-in-force EP2976583B1 (fr) 2013-03-18 2014-03-13 Appareil frigorifique et soupape de distribution d'air pour celui-ci

Country Status (5)

Country Link
US (1) US20170321950A1 (fr)
EP (1) EP2976583B1 (fr)
CN (1) CN105229396B (fr)
DE (1) DE102013204737A1 (fr)
WO (1) WO2014146966A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015007359A1 (de) * 2014-10-29 2016-05-04 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
CN107894126B (zh) * 2017-12-13 2023-11-14 广州鲜之源生态冷链技术有限公司 一种具有保鲜功能的冷库系统
CN108224884A (zh) * 2018-01-22 2018-06-29 海信（山东）冰箱有限公司 一种冰箱的风道组件及冰箱
US10859302B2 (en) * 2018-09-26 2020-12-08 Haier Us Appliance Solutions, Inc. Refrigerator appliance with flexible door-in-door compartments
CN113375411A (zh) * 2020-02-25 2021-09-10 合肥华凌股份有限公司 回风控温机构、回风控温方法、运行控制装置及冰箱
CN113834258A (zh) * 2021-09-26 2021-12-24 珠海格力电器股份有限公司 冰箱

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711159A (en) * 1994-09-07 1998-01-27 General Electric Company Energy-efficient refrigerator control system
JP3930082B2 (ja) * 1996-11-15 2007-06-13 松下冷機株式会社 ダンパー装置
BR9903354A (pt) * 1999-07-13 2001-03-06 Multibras Eletrodomesticos Sa Dispositivo controlador de fluxo de ar em refrigerador e freezer
JP3814576B2 (ja) * 2002-11-27 2006-08-30 松下冷機株式会社 ダンパー装置
JP2004191033A (ja) * 2002-12-10 2004-07-08 Lg Electronics Inc 空気調和機
KR100504503B1 (ko) * 2003-01-14 2005-08-01 엘지전자 주식회사 공기조화시스템
US6880359B2 (en) * 2003-07-15 2005-04-19 Robertshaw Controls Company Flow-through rotary damper providing compartment selectivity for a multi-compartment refrigerator
DE202005014373U1 (de) * 2005-09-12 2006-01-05 BSH Bosch und Siemens Hausgeräte GmbH No-Frost-Kältegerät

Also Published As

Publication number Publication date
EP2976583B1 (fr) 2018-07-11
DE102013204737A1 (de) 2014-09-18
CN105229396A (zh) 2016-01-06
CN105229396B (zh) 2017-03-15
US20170321950A1 (en) 2017-11-09
WO2014146966A1 (fr) 2014-09-25

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