EP2694897A2 - Verfahren zur regelung eines kältegeräts - Google Patents
Verfahren zur regelung eines kältegerätsInfo
- Publication number
- EP2694897A2 EP2694897A2 EP12714999.5A EP12714999A EP2694897A2 EP 2694897 A2 EP2694897 A2 EP 2694897A2 EP 12714999 A EP12714999 A EP 12714999A EP 2694897 A2 EP2694897 A2 EP 2694897A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- switch
- compressor
- minutes
- duration
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
-
- 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
-
- 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
- F25D2700/02—Sensors detecting door opening
-
- 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
-
- 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
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
Definitions
- the present invention relates to a method for controlling a refrigeration device.
- the refrigeration device comprises at least one cold room, which can be closed by at least one door.
- the refrigeration device comprises a refrigeration cycle which has a compressor and a control device which is suitable for switching on or off the compressor.
- Such a method for controlling a refrigeration device is known from DE 10 2009 001 678 A1.
- the temperature prevailing in the cold room is first determined and in each case with a maximum temperature and a
- the compressor is switched on when the temperature exceeds the maximum temperature and switched off when the temperature falls below the minimum temperature. Is the temperature below the
- Duty cycle switched on and switched off during a switch-off period In the known method, the duty cycle and the switch-off are predetermined, that is, the switching on of the compressor and the switching off of the compressor is time-controlled.
- This refinement has the disadvantage that the switch-on duration and the switch-off duration for a refrigeration device must be predetermined. This can lead to, in particular, when the prevailing conditions differ greatly from the conditions that are foreseen for the refrigeration device that
- the object of the present invention is to overcome the disadvantages of the known from the prior art method, and thus to improve the known method for controlling a refrigeration device. To solve this problem, a method according to claim 1, and a device according to claim 10 is proposed.
- the inventive method further has the advantage that the control behavior is optimized in particular for different ambient and compartment temperatures. Furthermore, the method according to the invention achieves an efficiency optimization of the operated device.
- the difference between the maximum temperature and the maximum temperature is the difference between the maximum temperature and the maximum temperature
- Minimum temperature between 0, 1 ° and 10 °, preferably between 0.2 ° and 2 °, more preferably between 0.5 ° and 1 °.
- the temperature-dependent control of the switch-off only takes place in the presence of constant conditions.
- This embodiment has the advantage that the control behavior of the refrigeration device is not adapted to short-term changing conditions, whereby the control behavior is optimized in the presence of these constant conditions.
- the method according to the invention is characterized in that the presence of constant conditions comprises that, over a time interval, the door remains closed and / or an ambient temperature remains approximately constant and / or no defrosting phase occurs.
- This embodiment has the advantage that disturbing external influences are not included in the adaptation of the control of the refrigeration device, whereby the control behavior for long-term conditions is improved.
- Such external influences can be, for example, a strongly changing one
- the presence of constant conditions can be determined from the control behavior of the control device. This is indicated in particular by a cyclical one
- the method according to the invention is further characterized in that the time interval is between 10 minutes and 12 hours, preferably between 30 minutes and 6 hours, more preferably between 1 hour and 5 hours.
- This embodiment has the advantage that it is excluded that short-term changes in temperature are used as a basis for adapting the control of the refrigeration device.
- the temperature within the refrigerator increases for a certain period of time. If the control behavior of the refrigeration device would now adapt to these conditions, the efficiency of the refrigeration device would also be less adapted in the case of constant conditions. Accordingly, the adaptation of the control of the refrigeration device is only at present constant
- the regulation of the switch-off duration takes place in that the switch-off duration is reduced when the maximum temperature is exceeded. Furthermore, the method is preferably characterized in that the regulation of the switch-off duration takes place in that the
- This embodiment has the advantage that the temperature in the interior of the refrigeration device as possible within the temperature interval, which is limited by the minimum temperature and the maximum temperature remains. This increases the energy efficiency.
- the embodiment further offers the advantage that the switch-off duration is automatically selected so that the temperature inside the refrigeration device remains as long as possible within the temperature interval at constant and constant conditions. In addition, it is thus possible to dispense with the time-consuming predetermination of the switch-off duration for the given refrigeration appliance.
- the method according to the invention is characterized in that, after reducing and / or increasing the switch-off duration, a flag is set in order to prevent the switch-off duration from being reduced and / or increased once again and that the flag after expiration a blocking period is cleared to allow the off period is reduced again and / or increased.
- the blocking time by a number
- Compressor run times are determined.
- a compressor running time results from the sum of the switch-off duration and the switch-on duration.
- the blocking time is preferably at least two transit times. Further preferably, the blocking time is between two and twenty terms. Further preferably, the blocking time is between two and ten terms.
- the method is characterized in that the duty cycle is between 30 seconds and 30 minutes, preferably between 1 minute and 10 minutes, more preferably about 4 minutes. Furthermore, the switch-off duration is preferably between 1 minute and 60 minutes, preferably between 2 minutes and 20 minutes, more preferably about 8 minutes.
- the switch-off duration is reduced by a constant amount, and increased by the constant amount when the minimum temperature is undershot.
- the constant amount is between 5 seconds and 5
- the inventive device for carrying out the method according to the invention comprises at least one cold room, which is closed by at least one door, a refrigeration circuit having a compressor, a control device which is adapted to turn on or off the compressor and a
- Temperature sensor suitable for determining the temperature prevailing in the cold room.
- the device according to the invention makes use of the advantages of the method according to the invention.
- the device according to the invention comprises means suitable for determining whether constant conditions exist
- the device comprises an outside temperature sensor which is suitable for measuring an ambient temperature.
- the device comprises a door sensor adapted to determine if the door is open. Further preferably, the device is adapted to determine whether a defrost phase occurs.
- FIG. 1 shows a schematic view of a refrigerator according to the invention
- Fig. 2 is a diagram showing the course of the cold in the
- Fig. 3 is a diagram showing the course of the cold in the
- FIG. 1 shows a schematic view of a refrigeration appliance 10.
- the refrigeration appliance 10 comprises a refrigeration space 14 which can be closed by a door 12, a refrigeration cycle 20 and a control device 30.
- the refrigeration cycle 20 comprises in particular a compressor 22.
- a temperature sensor 32 of the control device 30 is arranged in the interior of the cold room 14 and measures the temperature T of the air in the cold room 14.
- the control device 30 of the refrigeration device 10 has a door sensor 34, which determines whether the door 12 of the refrigeration device 10 is open or closed. Accordingly, the door sensor 34 can determine whether the air in the cold room 14 is prevented from mixing with the air outside the refrigerator 10. A closed door 12 thus contributes to constant temperatures in the interior of the cold room 14.
- the control device 30 of the refrigeration device 10 may have an outside temperature sensor 36.
- the outside temperature sensor 36 is arranged on the outside of the refrigeration device 10.
- the outside temperature sensor 36 is the
- Control device 30 arranged such that a possible heat output of an evaporator of the refrigeration cycle 20 does not affect the measurement of the outside temperature.
- FIG. 2 shows a diagram which reproduces the temperature profile and the power of a compressor 22 of a refrigeration device 10, wherein the control behavior is not optimally adapted to the prevailing ambient conditions.
- the course of the temperature T within the cooling space 14 of the refrigeration device 10 is reproduced in the lower area of the diagram.
- the temperature T has strong fluctuations due to the irregular control behavior.
- Duty cycle t e i n turned on and during a turn-off of t off.
- the temperature T exceeds the temperature T max , then, if no flag is set yet, the flag is set and the switch-off duration t off is reduced for future cycles. If a flag has already been set, the switch-off duration t off is retained. Markers are cleared after a predefined number of cycles.
- the compressor 22 is switched on and the switch-off duration t out is increased by the same constant value if no flag is set, and such a flag is then set.
- the flag is cleared after a run of a predetermined number of cycles.
- the compressor 22 is initially the duration t of an off-off. If the temperature T rises from a temperature below the minimum temperature T min to a temperature which is within the minimum temperature T min and the Maximum temperature T max is defined interval, so is for the duration of the
- the existing constant conditions for the exemplary embodiment are expressed by a regular and recurrent control behavior (3 short peaks followed by a long peak power).
- FIG. 3 shows an optimized control behavior of a refrigeration device 10 according to the invention.
- the optimized control behavior remain the duty t e m and the off time t from the passage of time equal in length. Also, the temperature T remains relatively constant, and moves within the interval between the
- FIG. 2 shows, the compressor 22 is three times in succession for a duration t a is turned on and a switched-off from t off. Following this, a longer activation of the compressor 22, which t a duty follows a beyond. This is due to the fact that the temperature T has increased beyond the maximum temperature T max .
- the control pattern described follows again after a prolonged switch-off phase. This regular and recurring control behavior thus indicates the existence of constant conditions.
- the diagram reproduced in FIG. 3 also shows a repetitive control behavior of the control device 30. Accordingly, it can also be deduced from the diagram reproduced in FIG. 3 that constant conditions prevail. A regulation of the switch-off duration t off can accordingly take place to improve the control behavior of the controller 30
- the method according to the invention for a refrigeration device enables the efficiency of the refrigeration device to be optimized. Furthermore, the inventive method is optimal Regulator settings are available, regardless of the existing ones
- the method according to the invention can be implemented cost-effectively on a software basis.
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)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201110006951 DE102011006951A1 (de) | 2011-04-07 | 2011-04-07 | Verfahren zur Regelung eines Kältegeräts |
| PCT/EP2012/055975 WO2012136630A2 (de) | 2011-04-07 | 2012-04-02 | Verfahren zur regelung eines kältegeräts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2694897A2 true EP2694897A2 (de) | 2014-02-12 |
| EP2694897B1 EP2694897B1 (de) | 2015-07-22 |
Family
ID=45976304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12714999.5A Active EP2694897B1 (de) | 2011-04-07 | 2012-04-02 | Ein kältegerät und ein verfahren zur regelung des kältegeräts |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2694897B1 (de) |
| CN (1) | CN103459955B (de) |
| DE (1) | DE102011006951A1 (de) |
| RU (1) | RU2555829C2 (de) |
| WO (1) | WO2012136630A2 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091499B (zh) * | 2015-08-18 | 2017-06-16 | 小米科技有限责任公司 | 信息生成方法及装置 |
| DE102016212275A1 (de) * | 2016-07-05 | 2018-01-11 | Bayerische Motoren Werke Aktiengesellschaft | Einrichtung zur kühlung eines energiespeichermoduls für ein kraftfahrzeug |
| KR102496303B1 (ko) * | 2017-06-12 | 2023-02-07 | 엘지전자 주식회사 | 냉장고 및 그의 제어방법 |
| CN110425817B (zh) * | 2019-08-28 | 2023-10-03 | 广东富信科技股份有限公司 | 母乳冷藏装置的自适应温度调节方法、装置及系统 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4292813A (en) * | 1979-03-08 | 1981-10-06 | Whirlpool Corporation | Adaptive temperature control system |
| KR100301501B1 (ko) * | 1998-12-09 | 2001-09-22 | 구자홍 | 인버터냉장고의운전속도가변장치및방법 |
| UA76962C2 (en) * | 2000-10-11 | 2006-10-16 | Arcelik As | Method for refrigerating device control (variants) |
| DE10064318A1 (de) * | 2000-12-22 | 2002-07-04 | Bsh Bosch Siemens Hausgeraete | Verfahren zur Regelung eines Kühlgerätes |
| KR100442276B1 (ko) * | 2002-07-24 | 2004-07-30 | 엘지전자 주식회사 | 냉장고의 압축기 제어방법 |
| EP1524484A1 (de) * | 2003-10-16 | 2005-04-20 | Whirlpool Corporation | Kühlschrank |
| RU2368850C2 (ru) * | 2005-02-18 | 2009-09-27 | Кэрриер Корпорейшн | Устройство управления холодильного контура с внутренним теплообменником |
| DE102009001678A1 (de) | 2009-03-19 | 2010-09-30 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät und Verfahren zum Kühlen eines Kältegerätes |
| CN201680669U (zh) * | 2010-05-17 | 2010-12-22 | 无锡和晶信息技术有限公司 | 一种冰箱控制器 |
-
2011
- 2011-04-07 DE DE201110006951 patent/DE102011006951A1/de not_active Withdrawn
-
2012
- 2012-04-02 WO PCT/EP2012/055975 patent/WO2012136630A2/de not_active Ceased
- 2012-04-02 EP EP12714999.5A patent/EP2694897B1/de active Active
- 2012-04-02 RU RU2013145295/13A patent/RU2555829C2/ru active
- 2012-04-02 CN CN201280016956.XA patent/CN103459955B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012136630A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2013145295A (ru) | 2015-05-20 |
| WO2012136630A3 (de) | 2013-02-07 |
| RU2555829C2 (ru) | 2015-07-10 |
| WO2012136630A2 (de) | 2012-10-11 |
| CN103459955B (zh) | 2016-05-11 |
| EP2694897B1 (de) | 2015-07-22 |
| CN103459955A (zh) | 2013-12-18 |
| DE102011006951A1 (de) | 2012-10-11 |
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