EP3084323A1 - Kältegerät mit mehreren kältefächern - Google Patents
Kältegerät mit mehreren kältefächernInfo
- Publication number
- EP3084323A1 EP3084323A1 EP14812547.9A EP14812547A EP3084323A1 EP 3084323 A1 EP3084323 A1 EP 3084323A1 EP 14812547 A EP14812547 A EP 14812547A EP 3084323 A1 EP3084323 A1 EP 3084323A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- expansion valve
- evaporator
- temperature
- refrigeration
- refrigerating appliance
- 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
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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
- F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
-
- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
Definitions
- the present invention relates to a refrigeration device having a plurality of refrigeration compartments for storing refrigerated goods at different temperatures.
- refrigerators special compartments, such as Auftaufumbleer or
- Warming compartments be provided, which can be adjusted up to 60 ° C.
- the temperatures above ambient temperature are realized with electric heaters. Without heating, the temperatures in individual refrigerators can only be regulated to a limited extent.
- By setting a compressor running time temperature differences of +/- 3K can be generated.
- Some special appliances such as wine cabinets, work with larger temperature ranges.
- the temperature ranges include, for example, 5-22 ° C in up to three temperature zones.
- These special devices are controlled by adjusting the operating time of each evaporator.
- Other devices have flaps in an air duct that are gradually opened to reach individual temperature controlled zones. In these devices, however, there is only one evaporator with a fixed evaporation temperature.
- the object is achieved by a refrigeration device with a first refrigeration compartment for storing refrigerated goods at a first temperature, which is a first
- Evaporator comprising a first controllable expansion valve at the refrigerant inlet of the first evaporator, and a second refrigerating compartment for storing refrigerated goods at a second temperature, the second evaporator with a second controllable
- Expansion valve at the refrigerant inlet of the second evaporator characterized in that a refrigerant outlet of the first evaporator is connected to the second controllable expansion valve at the refrigerant inlet of the second evaporator.
- a refrigeration appliance is understood in particular to mean a household refrigerating appliance, that is to say a refrigeration appliance that is used for housekeeping in households or in the gastronomy sector food and / or drinks in particular
- Store temperatures such as a refrigerator, a freezer, a fridge freezer, a freezer or a wine fridge.
- the refrigeration device comprises a control unit for controlling the expansion valves.
- the expansion valves can be centrally controlled by a control unit.
- control unit has a non-volatile memory for storing a control program.
- control unit is designed to control the first and the second expansion valve such that a
- the control unit is designed to control the first and the second expansion valve such that a
- Flow through the first expansion valve is increased when a flow through the second expansion valve is reduced.
- the technical advantage is achieved, for example, that the temperature in the first refrigeration compartment can be changed without the temperature in the second refrigeration compartment is affected.
- control unit is designed to control the first and the second expansion valve such that a
- Flow through the first expansion valve is reduced when flow through the second expansion valve is increased.
- the technical advantage is achieved, for example, that the temperature in the first refrigeration compartment can be changed without the temperature in the second refrigeration compartment is affected.
- the first temperature is higher than the second temperature.
- the second refrigeration compartment is a freezer compartment for storing refrigerated goods at a temperature below 0 ° C.
- the refrigeration device comprises a compressor with adjustable speed.
- control unit is designed to control the speed of the compressor based on a predetermined cooling capacity.
- the first comprises
- Refrigeration compartment a first temperature sensor and the second refrigeration compartment a second
- Temperature sensor As a result, for example, the technical advantage is achieved that a feedback loop for the temperature arises.
- control unit is designed to control the first expansion valve and the second expansion valve on the basis of a first temperature measurement value of the first temperature sensor and a second temperature measurement value of the second temperature sensor.
- the first or second expansion valve is infinitely adjustable.
- the technical advantage is achieved that a fine and accurate adjustment of the temperatures is achieved.
- the first or second expansion valve comprises a screw device with a linear stroke to the
- the refrigeration device comprises a third refrigeration compartment for storing refrigerated goods at a third temperature comprising a third evaporator with a third controllable expansion valve at the refrigerant inlet of the third evaporator and a refrigerant outlet of the second evaporator is connected to the third controllable expansion valve on Refrigerant inlet of the third evaporator connected.
- Fig. 1 is a schematic view of a refrigerator
- Fig. 2 is a view of a refrigerant circuit with a plurality of evaporators.
- 1 shows a schematic view of a refrigeration device 100 having a first refrigeration compartment 101 -1 for storing refrigerated goods at a first temperature, for example a refrigerated compartment, and a second refrigerating compartment 101 -2 for storing refrigerated goods at a second temperature, for example a freezer compartment.
- the refrigeration device 100 is used for example for cooling food and includes a refrigerant circuit with an evaporator, a compressor, a condenser and a throttle body.
- the evaporator is a heat exchanger in which after expansion the liquid refrigerant is absorbed by heat absorption from the medium to be cooled, i. the air inside the refrigerator, is evaporated.
- the compressor or compressor is a mechanically operated component that
- the condenser is a heat exchanger in which after compression, the evaporated refrigerant by heat transfer to an outer cooling medium, ie the Ambient air, is liquefied.
- the throttle body is a device for the continuous reduction of the pressure by cross-sectional constriction.
- the refrigerant is a fluid used for heat transfer in the cryogenic system which absorbs heat at low temperatures and low pressure of the fluid and releases heat at higher temperature and higher pressure of the fluid, usually including changes in state of the fluid.
- Fig. 2 shows a view of a refrigerant circuit 1 19 with a plurality of evaporators 103-1, 103-2, 103-n.
- the first evaporator 103-1 is arranged in a first refrigerating compartment 101-1 of the refrigerating appliance 100
- the second evaporator 103-2 is arranged in a second refrigerating compartment 101-2 of the refrigerating appliance 100
- the third evaporator 103-n is arranged in a third refrigerating compartment 101. 3 of the refrigeration device arranged.
- Each of the evaporators includes, in front of each of its refrigerant inlets 107-1, 107-2, ... 107-n, an expansion valve 105-1, 105, -2, 105-n.
- the evaporators 103-1, 103-2, 103-n are connected in series. At this time, a refrigerant outlet 109-1 of the first evaporator 103-1 is connected to the second controllable expansion valve 105-2 at the refrigerant inlet 107-2 of the second evaporator (103-2). A refrigerant outlet 109-2 of the second evaporator 103-2 is connected to the third controllable expansion valve 105-n at the refrigerant inlet 107-n of the third evaporator 103-n.
- the expansion valves 105-1, 105-2, 105-n are controllable by a control unit 15 1.
- a control of the expansion valve 105-1, 105-2, 105-n the cross-section and thus the pressure drop through the expansion valve 105-1, 105-2, 105-n is controlled according to a suitable reference variable.
- the reference variable can be, for example, the pressure in the
- the temperature in the cold compartments 101 -1, 101 -2, 101 -n is detected by respective temperature sensors 1 17-1, 1 17-2, 1 17-3.
- the temperature of the refrigerators 101 -1, 101 -2, 101 -n is adjustable via a customer and makes it possible to cover a wide range of temperatures in the respective refrigeration compartments 101 -1, 101 -2, 101 -n, for example in a freezer compartment -18 ° C, in a refrigerator compartment 5 ° C, in a VitaFresh compartment 0 ° C, in a wine storage compartment 12 ° C, in a storage compartment - 2 ...
- a pressure ratio between the individual evaporators 103-1, 103-2, 103-n in the refrigerant circuit 1 19 is used in the control of the expansion valves 105-1, 105-2,
- the total throttling in the system is P 0 -P n , where P 0 is the refrigerant pressure before the first evaporator 103-1 and P n is the refrigerant pressure after the nth evaporator 103-n.
- the expansion valve 105-1 generates a pressure drop of P 0 -Pi, where Pi the
- Refrigerant pressure after the first evaporator 103-1 is.
- the expansion valve 105-2 generates a pressure drop of PrP 2 , where P 2 is the refrigerant pressure after the second evaporator 103-2.
- the total throttling from a condenser 1 1 1 to the second evaporator 103-2 is P 0 -P 2 , ie (P 0 -Pi) + (PrP 2 ).
- the expansion valves 105-1, 105-2, 105-n are individually controllable, the first expansion valve 105-1 can be opened by one amount, while the second
- Expansion valve 105-2 is closed with the same amount, so that the
- Total throttling P 0 -P 2 remains the same.
- a higher refrigerant pressure prevails.
- the evaporator 103-1 has a higher evaporation temperature and the compartment temperature increases.
- the subsequent evaporator 103-2 experiences no difference in the refrigerant pressure. In the same way, the evaporator 103-2 can be adjusted.
- the temperatures of the evaporators 103-1, 103-2, 103-n are not directly to the
- Ambient temperature bound For example, when the expansion valve 105-1 is fully opened, the first evaporator 103-1 may reach a temperature close to the condensing temperature. At an ambient temperature of 0 ° C is the
- Condensing temperature at approx. 15 ° C. the refrigeration compartment 101 -1 can be heated. If the refrigeration device 100 is placed in a garage or on a balcony, a freezing of refrigerated goods can be prevented.
- the refrigerators 101 -1, 101 -2, ... 101 -n become colder in turn.
- the evaporator 103-1 is thus the warmest and the evaporator 103-n is the coldest.
- the compressor 1 13 In order to keep the temperatures in the refrigerators 101 -1, 101 -2, ... 101 -n constant, the compressor 1 13 in a continuous operation. In the case of defrosting of an evaporator 103-1, 103-2, 103-n, the evaporation temperature may be temporarily set above the freezing point. However, this is rarely necessary because due to the continuous operation of the compressor 1 13, the temperature difference between the evaporators 103-1, 103-2, 103-n and the respective refrigerators 101 -1, 101 -2, ... 101 -n low is. Therefore it is under
- the compressor 1 13 has a speed control, so that different sizes
- Cooling capacities and low temperatures are adjustable. High cooling capacities at low temperatures are achieved at high speeds.
- the customer is given the opportunity to regulate the temperature of one or more refrigerators 101 -1, 101 -2, ... 101 -n efficiently according to his needs. Since this regulation is carried out via the refrigeration cycle 1 19, this is more efficient than comparable
- the targeted ripening of fruits and vegetables or the storage of bread for example, the targeted ripening of fruits and vegetables or the storage of bread.
- the respective temperatures in the individual cold compartments 101 -1, 101 -2, 101 -n of the refrigeration device 100 are easily and independently controllable, so that at the same time
- Freezer temperatures below -18 ° C and temperatures above ambient temperature can be achieved without the use of an electric heater.
- the individual cold compartments 101 -1, 101 -2, 101 -n can be controlled without affecting the temperatures in the other cold compartments 101 -1, 101 -2, 101 -n.
- the temperatures in the cold stores 101 -1, 101 -2, 101 -n are at a very stable level.
- Temperature control achieved with significantly reduced fluctuation. This results in advantages, for example, for stored refrigerated goods. With fresh fruits and vegetables one finds Reduced mass loss occurs because transpiration processes are minimized and breathability is reduced. In packaged products, especially MAP packs, reduced condensate formation occurs, thus increasing food safety. In addition, an improvement of the sensory product content is achieved. Freeze storage achieves a reduction in recrystallization, better texture retention, and reduced drip juice loss. In addition, a constant refrigeration compartment temperature of 5 ° C can be guaranteed regardless of the ambient temperature, for example at ambient temperatures below 5 ° C. This allows the customer to use the refrigerator 100 according to his needs. All features explained and shown in connection with individual embodiments of the invention may be provided in different combinations in the article according to the invention, in order to simultaneously realize their advantageous effects.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL14812547T PL3084323T3 (pl) | 2013-12-18 | 2014-12-16 | Urządzenie chłodnicze z kilkoma przedziałami chłodniczymi |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013226341.4A DE102013226341A1 (de) | 2013-12-18 | 2013-12-18 | Kältegerät mit mehreren Kältefächern |
| PCT/EP2014/078089 WO2015091571A1 (de) | 2013-12-18 | 2014-12-16 | Kältegerät mit mehreren kältefächern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3084323A1 true EP3084323A1 (de) | 2016-10-26 |
| EP3084323B1 EP3084323B1 (de) | 2018-10-31 |
Family
ID=52102684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14812547.9A Active EP3084323B1 (de) | 2013-12-18 | 2014-12-16 | Kältegerät mit mehreren kältefächern |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10088215B2 (de) |
| EP (1) | EP3084323B1 (de) |
| CN (1) | CN105829815B (de) |
| DE (1) | DE102013226341A1 (de) |
| PL (1) | PL3084323T3 (de) |
| WO (1) | WO2015091571A1 (de) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016202565A1 (de) | 2016-02-19 | 2017-08-24 | BSH Hausgeräte GmbH | Kältegerät mit mehreren Lagerkammern |
| DE102016202564A1 (de) | 2016-02-19 | 2017-08-24 | BSH Hausgeräte GmbH | Kältegerät mit mehreren Lagerkammern |
| DE102016221615A1 (de) | 2016-11-04 | 2018-05-09 | BSH Hausgeräte GmbH | Modulares Kältegerät |
| DE102017205426A1 (de) | 2017-03-30 | 2018-10-04 | BSH Hausgeräte GmbH | Kältegerät und Betriebsverfahren dafür |
| DE102017205429A1 (de) | 2017-03-30 | 2018-10-04 | BSH Hausgeräte GmbH | Kältegerät und Betriebsverfahren dafür |
| DE102017218977A1 (de) | 2017-10-24 | 2019-04-25 | BSH Hausgeräte GmbH | Haushaltskältegerät mit einem Auftaufach und Verfahren zum Betreiben eines solchen Haushaltskältegerätes |
| DE102018206221A1 (de) | 2018-04-23 | 2019-10-24 | BSH Hausgeräte GmbH | Kältegerät mit beheizbarem Innenraum |
| JP7347984B2 (ja) * | 2019-07-26 | 2023-09-20 | 株式会社鷺宮製作所 | 温度式膨張弁及び冷凍サイクルシステム |
| KR102925850B1 (ko) * | 2019-09-02 | 2026-02-11 | 엘지전자 주식회사 | 언더 카운터형 냉장고 및 그 제어방법 |
| DE102019216582A1 (de) * | 2019-10-28 | 2021-04-29 | BSH Hausgeräte GmbH | Kältegerät mit heiz- und kühlbarem Fach |
| DE102019218352A1 (de) * | 2019-11-27 | 2021-05-27 | BSH Hausgeräte GmbH | Kältegerät mit variabel nutzbarem Fach |
| US11885544B2 (en) * | 2019-12-04 | 2024-01-30 | Whirlpool Corporation | Adjustable cooling system |
| CN112413916B (zh) * | 2020-11-16 | 2022-01-07 | 中科赛凌(北京)科技有限公司 | 一种冷热气喷射装置 |
| CN112413973B (zh) * | 2020-11-25 | 2021-10-08 | 珠海格力电器股份有限公司 | 冷藏柜的控制方法及制冷系统 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2691872A (en) * | 1953-02-25 | 1954-10-19 | Philco Corp | Plural compartment refrigeration apparatus |
| US2693679A (en) * | 1953-03-24 | 1954-11-09 | Philco Corp | Plural compartment refrigeration apparatus |
| BE788218A (fr) * | 1972-07-25 | 1973-02-28 | Naniwa Sangyo Co Ltd | Refrigerateur de type combine |
| US5150583A (en) * | 1989-01-03 | 1992-09-29 | General Electric Company | Apparatus for controlling a dual evaporator, dual fan refrigerator with independent temperature controls |
| US5103650A (en) * | 1991-03-29 | 1992-04-14 | General Electric Company | Refrigeration systems with multiple evaporators |
| US5134859A (en) * | 1991-03-29 | 1992-08-04 | General Electric Company | Excess refrigerant accumulator for multievaporator vapor compression refrigeration cycles |
| US5431026A (en) * | 1994-03-03 | 1995-07-11 | General Electric Company | Refrigerant flow rate control based on liquid level in dual evaporator two-stage refrigeration cycles |
| JP2001108319A (ja) | 1999-10-06 | 2001-04-20 | Matsushita Refrig Co Ltd | 冷凍装置 |
| JP2001133112A (ja) * | 1999-11-10 | 2001-05-18 | Matsushita Refrig Co Ltd | 冷蔵庫 |
| JP2001153477A (ja) * | 1999-12-02 | 2001-06-08 | Matsushita Refrig Co Ltd | 冷凍装置 |
| JP3576092B2 (ja) * | 2000-11-10 | 2004-10-13 | 松下冷機株式会社 | 冷蔵庫 |
-
2013
- 2013-12-18 DE DE102013226341.4A patent/DE102013226341A1/de not_active Withdrawn
-
2014
- 2014-12-16 PL PL14812547T patent/PL3084323T3/pl unknown
- 2014-12-16 WO PCT/EP2014/078089 patent/WO2015091571A1/de not_active Ceased
- 2014-12-16 CN CN201480069017.0A patent/CN105829815B/zh not_active Expired - Fee Related
- 2014-12-16 US US15/104,635 patent/US10088215B2/en active Active
- 2014-12-16 EP EP14812547.9A patent/EP3084323B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105829815B (zh) | 2019-03-26 |
| WO2015091571A1 (de) | 2015-06-25 |
| EP3084323B1 (de) | 2018-10-31 |
| PL3084323T3 (pl) | 2019-04-30 |
| DE102013226341A1 (de) | 2015-06-18 |
| US20160320116A1 (en) | 2016-11-03 |
| US10088215B2 (en) | 2018-10-02 |
| CN105829815A (zh) | 2016-08-03 |
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