CN110986458A - Refrigeration equipment, control method and control device thereof and storage medium - Google Patents
Refrigeration equipment, control method and control device thereof and storage medium Download PDFInfo
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- CN110986458A CN110986458A CN201911300979.3A CN201911300979A CN110986458A CN 110986458 A CN110986458 A CN 110986458A CN 201911300979 A CN201911300979 A CN 201911300979A CN 110986458 A CN110986458 A CN 110986458A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 174
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000007710 freezing Methods 0.000 claims description 146
- 230000008014 freezing Effects 0.000 claims description 146
- 238000001816 cooling Methods 0.000 description 7
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- 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
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- 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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
- F25D19/003—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors with respect to movable containers
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- 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
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/02—Refrigerators including a heater
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- 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
The embodiment of the invention provides refrigeration equipment, a control method and a control device thereof and a storage medium, and belongs to the technical field of refrigeration. The control method comprises the following steps: obtaining a refrigerating temperature and a variable temperature; acquiring the set temperature of the temperature-changing chamber; under the condition that the set temperature is higher than the preset critical temperature, the variable temperature reaches the variable temperature stop point temperature, and the refrigerating temperature does not reach the refrigerating stop point temperature, the variable temperature compensation heater positioned in the variable temperature chamber is started; and under the condition that the refrigerating temperature reaches the refrigerating stop point temperature or the variable temperature reaches the preset variable temperature threshold value, closing the variable temperature compensation heater; the preset variable temperature threshold value is located between the variable temperature stop point temperature and the variable temperature start point temperature. Therefore, the temperature control of the temperature-changing chamber can be controlled near the corresponding set temperature at lower cost, so that the temperature control precision of the temperature-changing chamber is improved, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a refrigeration device, a control method and a control device thereof and a storage medium.
Background
At present, the start-stop of compressor is mainly controlled based on the temperature of walk-in to most refrigerators, and the temperature of other compartments is controlled by walk-in temperature, consequently can't independently carry out temperature regulation to lead to other compartments to be difficult to realize accurate temperature control, can't adapt to the more and more diversified storage demand of user. In some high-end refrigerators, multiple sets of refrigeration systems are typically employed to achieve independent control of the temperature of each compartment, but this results in a significant increase in cost.
Disclosure of Invention
To at least partially solve the above problems in the prior art, an object of an embodiment of the present invention is to provide a refrigeration apparatus, a control method and a control device thereof, and a storage medium.
In order to achieve the above object, in a first aspect of embodiments of the present invention, there is provided a control method for a refrigeration apparatus including a refrigerating compartment, a temperature-changing compartment, a refrigeration system for refrigerating the refrigerating compartment and the temperature-changing compartment, and a compressor for driving the refrigeration system, the compressor being configured to be turned off in a case where a refrigerating temperature of the refrigerating compartment reaches a refrigerating stop point temperature, the control method including: acquiring the refrigerating temperature and the variable temperature of the variable temperature chamber; acquiring the set temperature of the temperature-changing chamber; under the condition that the set temperature is higher than a preset critical temperature, the variable temperature reaches a variable temperature shutdown point temperature, and the refrigerating temperature does not reach the refrigerating shutdown point temperature, a variable temperature compensation heater positioned in the variable temperature chamber is started; and under the condition that the refrigerating temperature reaches the refrigerating stop point temperature or the temperature-changing temperature reaches a preset temperature-changing temperature threshold value, closing the temperature-changing compensation heater; and the preset variable-temperature threshold is positioned between the variable-temperature shutdown point temperature and the variable-temperature startup point temperature.
Optionally, the control method further includes: when the refrigerating temperature reaches the refrigerating stop point temperature and the variable-temperature does not reach the variable-temperature stop point temperature, reducing the refrigerating stop point temperature by a preset temperature value and starting a refrigerating compensation heater positioned in the refrigerating chamber; and under the condition that the variable temperature reaches the variable temperature stop point temperature and the refrigerating temperature does not reach the reduced refrigerating stop point temperature, closing the compressor and the refrigerating compensation heater.
Optionally, the control method further includes: under the condition that the refrigerating temperature reaches the reduced refrigerating stop point temperature and the temperature-changing temperature is higher than the temperature-changing stop point temperature and not higher than the preset temperature-changing temperature threshold value, closing the compressor and keeping the refrigerating compensation heater on; and turning off the refrigeration compensating heater when the refrigeration temperature reaches a preset refrigeration temperature threshold value; and the preset refrigeration temperature threshold value is positioned between the refrigeration stop point temperature and the refrigeration start point temperature.
Optionally, the control method further includes: under the condition that the refrigerating temperature reaches the reduced refrigerating stop point temperature and the temperature-changing temperature is greater than the preset temperature-changing temperature threshold value, closing the compressor and keeping the refrigerating compensation heater on; and closing the refrigeration compensation heater under the condition that the refrigeration temperature reaches the refrigeration starting point temperature.
Optionally, the refrigeration apparatus further includes a freezing chamber, the refrigeration system is further configured to refrigerate the freezing chamber, and the control method further includes: under the condition that the variable-temperature reaches the variable-temperature stop point temperature and the refrigerating temperature reaches the refrigerating stop point temperature, acquiring the freezing temperature of the freezing chamber; under the condition that the freezing temperature is greater than the freezing stop point temperature and not greater than a preset freezing temperature threshold value, a refrigerating compensation heater located in the refrigerating chamber is started; and turning off the refrigeration compensating heater when the refrigeration temperature reaches a preset refrigeration temperature threshold value; the preset freezing temperature threshold value is located between the freezing stop point temperature and the freezing starting point temperature, and the preset refrigerating temperature threshold value is located between the refrigerating stop point temperature and the refrigerating starting point temperature.
Optionally, the refrigeration apparatus further includes a freezing chamber, the refrigeration system is further configured to refrigerate the freezing chamber, and the control method further includes: under the condition that the variable-temperature reaches the variable-temperature stop point temperature and the refrigerating temperature reaches the refrigerating stop point temperature, acquiring the freezing temperature of the freezing chamber; under the condition that the freezing temperature is greater than a preset freezing temperature threshold value, a refrigeration compensation heater positioned in the refrigeration chamber is started; and closing the refrigeration compensation heater when the refrigeration temperature reaches the refrigeration starting point temperature; and the preset freezing temperature threshold value is positioned between the freezing stop point temperature and the freezing start point temperature.
In a second aspect of embodiments of the present invention, there is provided a control apparatus for a refrigeration apparatus including a refrigerating compartment, a temperature-changing compartment, a refrigeration system for refrigerating the refrigerating compartment and the temperature-changing compartment, and a compressor for driving the refrigeration system, the compressor being configured to be turned off in a case where a refrigerating temperature of the refrigerating compartment reaches a refrigerating stop point temperature, the control apparatus being configured to: acquiring the refrigerating temperature and the variable temperature of the variable temperature chamber; acquiring the set temperature of the temperature-changing chamber; under the condition that the set temperature is higher than a preset critical temperature, the variable temperature reaches a variable temperature shutdown point temperature, and the refrigerating temperature does not reach the refrigerating shutdown point temperature, a variable temperature compensation heater positioned in the variable temperature chamber is started; and under the condition that the refrigerating temperature reaches the refrigerating stop point temperature or the temperature-changing temperature reaches a preset temperature-changing temperature threshold value, closing the temperature-changing compensation heater; and the preset variable-temperature threshold is positioned between the variable-temperature shutdown point temperature and the variable-temperature startup point temperature.
Optionally, the control device is further configured to: when the refrigerating temperature reaches the refrigerating stop point temperature and the variable-temperature does not reach the variable-temperature stop point temperature, reducing the refrigerating stop point temperature by a preset temperature value and starting a refrigerating compensation heater positioned in the refrigerating chamber; and under the condition that the variable temperature reaches the variable temperature stop point temperature and the refrigerating temperature does not reach the reduced refrigerating stop point temperature, closing the compressor and the refrigerating compensation heater.
Optionally, the control device is further configured to: under the condition that the refrigerating temperature reaches the reduced refrigerating stop point temperature and the temperature-changing temperature is higher than the temperature-changing stop point temperature and not higher than the preset temperature-changing temperature threshold value, closing the compressor and keeping the refrigerating compensation heater on; and turning off the refrigeration compensating heater when the refrigeration temperature reaches a preset refrigeration temperature threshold value; and the preset refrigeration temperature threshold value is positioned between the refrigeration stop point temperature and the refrigeration start point temperature.
Optionally, the control device is further configured to: under the condition that the refrigerating temperature reaches the reduced refrigerating stop point temperature and the temperature-changing temperature is greater than the preset temperature-changing temperature threshold value, closing the compressor and keeping the refrigerating compensation heater on; and closing the refrigeration compensation heater under the condition that the refrigeration temperature reaches the refrigeration starting point temperature.
Optionally, the refrigeration apparatus further includes a freezing compartment, the refrigeration system is further configured to refrigerate the freezing compartment, and the control device is further configured to: under the condition that the variable-temperature reaches the variable-temperature stop point temperature and the refrigerating temperature reaches the refrigerating stop point temperature, acquiring the freezing temperature of the freezing chamber; under the condition that the freezing temperature is greater than the freezing stop point temperature and not greater than a preset freezing temperature threshold value, a refrigerating compensation heater located in the refrigerating chamber is started; and turning off the refrigeration compensating heater when the refrigeration temperature reaches a preset refrigeration temperature threshold value; the preset freezing temperature threshold value is located between the freezing stop point temperature and the freezing starting point temperature, and the preset refrigerating temperature threshold value is located between the refrigerating stop point temperature and the refrigerating starting point temperature.
Optionally, the refrigeration apparatus further includes a freezing compartment, the refrigeration system is further configured to refrigerate the freezing compartment, and the control device is further configured to: under the condition that the variable-temperature reaches the variable-temperature stop point temperature and the refrigerating temperature reaches the refrigerating stop point temperature, acquiring the freezing temperature of the freezing chamber; under the condition that the freezing temperature is greater than a preset freezing temperature threshold value, a refrigeration compensation heater positioned in the refrigeration chamber is started; and closing the refrigeration compensation heater when the refrigeration temperature reaches the refrigeration starting point temperature; and the preset freezing temperature threshold value is positioned between the freezing stop point temperature and the freezing start point temperature.
In a third aspect of embodiments of the present invention, there is provided a refrigeration apparatus including the control device for a refrigeration apparatus described above.
Optionally, the refrigeration device is a refrigerator or freezer.
In a fourth aspect of embodiments of the present invention, there is provided a machine-readable storage medium having stored thereon instructions for enabling a processor to execute the above-described control method for a refrigeration appliance when executed by the processor.
Through the technical scheme, the temperature of the temperature-changing chamber can be controlled near the corresponding set temperature at lower cost, so that the temperature control precision of the temperature-changing chamber is improved, and the user experience is improved.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a flowchart illustrating a control method for a refrigeration apparatus according to an embodiment of the present invention;
fig. 2 schematically illustrates a schematic view of a refrigerator provided in accordance with an embodiment of the present invention; and
fig. 3 schematically illustrates a refrigeration system of a refrigerator according to an embodiment of the present invention.
Description of the reference numerals
1 refrigerating compartment and 2 freezing compartment
3 temperature changing chamber
11 refrigeration evaporator 12 refrigeration compensation heater
13 refrigeration temperature sensor 21 freezing evaporator
22 freezing fan 23 freezing temperature sensor
31 temperature-changing evaporator 32 temperature-changing compensation heater
33 variable temperature sensor
4 left condenser of compressor 51
52 right condenser 6 dew-proof pipe
7 drying filter 8 capillary tube
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
Fig. 1 is a flowchart illustrating a control method for a refrigeration apparatus according to an embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention provides a control method for a refrigeration apparatus. The refrigeration apparatus may include a refrigerating chamber, a temperature varying chamber, a refrigeration system for refrigerating the refrigerating chamber and the temperature varying chamber, and a compressor for driving the refrigeration system, the compressor being configured to be turned off in a case where a refrigerating temperature of the refrigerating chamber reaches a refrigerating stop point temperature, the control method may include:
and step S10, obtaining the refrigerating temperature of the refrigerating chamber and the variable temperature of the variable temperature chamber.
In step S20, the set temperature of the temperature-variable chamber is acquired.
Step S30, when the set temperature is higher than the preset critical temperature, the variable temperature reaches the variable temperature shutdown point temperature, and the refrigeration temperature does not reach the refrigeration shutdown point temperature, the variable temperature compensation heater located in the variable temperature chamber is turned on.
And step S40, turning off the temperature-changing compensation heater when the refrigerating temperature reaches the refrigerating stop point temperature or the temperature-changing temperature reaches the preset temperature-changing temperature threshold value. The preset variable temperature threshold value is located between the variable temperature stop point temperature and the variable temperature start point temperature.
It can be understood that, under the condition that the temperature-changing chamber reaches the temperature of the shutdown point before the refrigerating chamber, the temperature-changing chamber is heated by the temperature-changing compensation heater, so that the temperature of the temperature-changing chamber is prevented from being too low. And under the condition that the refrigerating temperature reaches the refrigerating stop point temperature so that the compressor is stopped or the variable temperature reaches the preset variable temperature threshold value, the variable temperature compensation heater is closed, so that the temperature of the variable temperature chamber is prevented from being too high. Therefore, the temperature control of the temperature-changing chamber can be controlled near the corresponding set temperature at lower cost, so that the temperature control precision of the temperature-changing chamber is improved, and the user experience is improved.
In particular, the refrigeration device may be, for example, a single cycle refrigerator, which may include a refrigerating chamber and a temperature changing chamber. The refrigerating chamber and the temperature changing chamber can be respectively provided with a refrigerating compensation heater and a temperature changing compensation heater. The refrigeration system of the refrigerator may be driven by a compressor, and the compressor may be start-stop controlled based on the temperature of the refrigerating chamber, i.e., the compressor is started in a case where the refrigerating temperature of the refrigerating chamber is higher than the refrigerating start-point temperature, and is turned off in a case where the refrigerating temperature is lower than the refrigerating stop-point temperature.
When the refrigerator is used, a user can set the temperatures of the refrigerating chamber and the temperature-changing chamber respectively according to needs, the control device of the refrigerator can determine the refrigerating stop point temperature and the refrigerating start point temperature of the refrigerating chamber according to the set temperature of the refrigerating chamber, and the temperature-changing stop point temperature and the temperature-changing start point temperature of the temperature-changing chamber are determined according to the set temperature of the temperature-changing chamber. In the running process of the refrigerator, the refrigerating temperature of the refrigerating chamber and the variable temperature of the variable temperature chamber can be respectively detected by a refrigerating temperature sensor arranged in the refrigerating chamber and a variable temperature sensor arranged in the variable temperature chamber, the control device can acquire the refrigerating temperature detected by the refrigerating temperature sensor and the variable temperature detected by the variable temperature sensor and control the variable temperature compensation heater according to the refrigerating temperature and the variable temperature. Under the condition that the variable-temperature reaches the variable-temperature stop point temperature and the refrigerating temperature does not reach the refrigerating stop point temperature, if the set temperature of the variable-temperature chamber is higher than the preset critical temperature, the variable-temperature compensation heater positioned in the variable-temperature chamber is turned on, and under the condition that the refrigerating temperature reaches the refrigerating stop point temperature or the variable-temperature reaches the preset variable-temperature threshold value, the variable-temperature compensation heater is turned off, so that the temperature of the variable-temperature chamber is controlled between the variable-temperature stop point and the preset variable-temperature threshold value in the process that the temperature of the refrigerating chamber is reduced to the refrigerating stop point; and if the set temperature of the temperature change chamber is less than or equal to the preset critical temperature, the temperature change compensation heater is not started.
It is understood that the temperature change chamber can be used for various purposes such as refrigeration, freezing, etc., and thus the turn-on condition of the temperature change compensation heater can be determined by previously setting the critical temperature. For example, the preset critical temperature may be a temperature value of zero or close to zero, when the set temperature of the temperature-varying chamber is greater than zero, it indicates that the temperature-varying chamber is mainly used for cold storage and fresh keeping, and since the compressor may continue to operate when the temperature-varying temperature reaches the temperature of the temperature-varying shutdown point and the cold storage temperature does not reach the temperature of the cold storage shutdown point, the temperature-varying chamber may be heated by starting the temperature-varying compensation heater, so as to avoid the temperature of the temperature-varying chamber being too low. When the set temperature of the variable temperature chamber is less than or equal to zero degrees, it indicates that the current variable temperature chamber is mainly used for freezing, and therefore, the compensation heater is not generally started to avoid affecting the freezing state of the food.
In an optional embodiment of the present invention, in a case where the refrigerating temperature reaches the refrigerating stop point temperature and the variable temperature does not reach the variable temperature stop point temperature, the control device of the refrigerator may temporarily decrease the refrigerating stop point temperature by a preset temperature value so that the compressor is not stopped, and turn on the refrigerating compensation heater located in the refrigerating chamber so as to decrease the decreasing speed of the refrigerating temperature so that the refrigerating temperature is not decreased too fast. And after the refrigeration compensation heater is started, continuously detecting the refrigeration temperature and the variable temperature. If the variable temperature reaches the variable temperature stop point temperature firstly and the refrigeration temperature does not reach the reduced refrigeration stop point temperature, the control device closes the compressor and the refrigeration compensation heater. And if the refrigerating temperature reaches the reduced refrigerating stop point temperature firstly and the variable temperature does not reach the variable temperature stop point temperature, closing the compressor, and determining the closing condition of the compensation heater according to the temperature range of the variable temperature. Specifically, if the variable-temperature is greater than the variable-temperature stop point temperature but not greater than the preset variable-temperature threshold, the refrigeration compensation heater is kept on until the refrigeration temperature reaches the preset refrigeration temperature threshold; and if the variable temperature is higher than the preset variable temperature threshold value, keeping the refrigeration compensation heater on until the refrigeration temperature reaches the refrigeration starting point temperature. The preset refrigeration temperature threshold value is located between the refrigeration stop point temperature and the refrigeration starting point temperature. Therefore, under the condition that the refrigerating temperature reaches the refrigerating stop point temperature firstly and the temperature-changing chamber does not reach the temperature-changing stop point temperature, the stop time of the compressor can be postponed by temporarily reducing the refrigerating stop point temperature, and the refrigerating compensation heater is turned on to avoid the too low temperature of the refrigerating chamber. Meanwhile, under the condition that the refrigerating temperature reaches the reduced refrigerating stop point temperature, the closing condition of the refrigerating compensation heater can be determined according to the temperature range of the variable temperature, so that the refrigerating temperature is controlled to be close to the refrigerating stop point temperature and is prevented from exceeding a preset refrigerating temperature threshold value as far as possible, and the variable temperature can be controlled to be close to the variable temperature stop point temperature and is prevented from exceeding the preset variable temperature threshold value.
In an alternative embodiment of the present invention, the refrigeration device may further include a freezing chamber, and the refrigeration system is further configured to refrigerate the freezing chamber. The user can set the temperature of the freezing chamber according to the requirement, and the control device of the refrigerator can determine the freezing stop point temperature and the freezing start point temperature of the freezing chamber according to the set temperature of the freezing chamber. The control device of the refrigeration equipment can acquire the freezing temperature of the freezing chamber under the condition that the variable temperature reaches the variable temperature stop point temperature and the refrigerating temperature reaches the refrigerating stop point temperature. And under the condition that the freezing temperature is greater than the freezing stop point temperature and not greater than the preset freezing temperature threshold value, the refrigeration compensation heater positioned in the refrigerating chamber is started, and under the condition that the refrigeration temperature reaches the preset refrigeration temperature threshold value, the refrigeration compensation heater is closed. And under the condition that the freezing temperature is greater than the preset freezing temperature threshold value, the refrigeration compensation heater positioned in the refrigerating chamber is started, and under the condition that the refrigeration temperature reaches the refrigeration starting point temperature, the refrigeration compensation heater is closed. And under the condition that the freezing temperature is less than or equal to the freezing stop point temperature, the refrigeration compensation heater is not started. The preset freezing temperature threshold value is located between the freezing stop point temperature and the freezing starting point temperature, and the preset refrigerating temperature threshold value is located between the refrigerating stop point temperature and the refrigerating starting point temperature. It can be understood that, when the freezing chamber temperature is greater than the preset freezing temperature threshold, it indicates that the freezing chamber temperature is too high, and therefore the refrigerating chamber can be heated by the refrigerating compensation heater, so that the compressor is turned on; when the temperature of the freezing chamber is between the freezing stop point temperature and the preset freezing temperature threshold value, the refrigeration compensation heater can be started to properly increase the refrigeration temperature, so that the stop time of the compressor is shortened, and the phenomenon that the temperature of the freezing chamber rises too high during the stop of the compressor is avoided. Therefore, the temperatures of the refrigerating chamber, the temperature changing chamber and the freezing chamber can be controlled to be close to the corresponding set temperatures, and the refrigerating temperature, the temperature changing temperature and the freezing temperature are controlled more accurately.
As shown in fig. 2 and 3, in one embodiment of the present invention, the cooling device may be, for example, a single cycle refrigerator, which may be in a direct air cooling mode. For example, the freezing chamber of the refrigerator can adopt an air cooling mode, and the refrigerating chamber and the temperature changing chamber adopt a direct cooling mode. As shown in fig. 2, the refrigerator may include a refrigerating chamber 1, a freezing chamber 2, and a temperature-changing chamber 3, wherein a refrigerating evaporator 11, a refrigerating compensation heater 12, and a refrigerating temperature sensor 13 are disposed in the refrigerating chamber 1, a freezing evaporator 21, a freezing fan 22, and a freezing temperature sensor 23 are disposed in the freezing chamber 2, and a temperature-changing evaporator 31, a temperature-changing compensation heater 32, and a temperature-changing temperature sensor 33 are disposed in the temperature-changing chamber 3. Among them, the refrigerating temperature sensor 13, the freezing temperature sensor 23, and the variable temperature sensor 33 are used to detect the temperature of the corresponding compartment. As shown in fig. 3, the refrigeration system of the refrigerator includes a compressor 4, a left condenser 51, a right condenser 52, an anti-dew pipe 6, a drying filter 7, a capillary tube 8, a freezing evaporator 21, a temperature-changing evaporator 31, a refrigerating evaporator 11, and the like. Wherein, the dew-proof pipe 6 is positioned between the left condenser 51 and the right condenser 52, and the capillary tube 8 can be wound on the return air heat exchange section of the refrigeration system. The refrigerating system is driven by the compressor 4, and the compressor 4 is controlled to start and stop based on the refrigerating temperature of the refrigerating chamber 1, namely the compressor 4 is started when the refrigerating temperature is increased to the refrigerating start-up point temperature, and is closed when the refrigerating temperature is reduced to the refrigerating stop point temperature. In the present embodiment, the control device of the refrigerator can acquire the refrigerating temperature of refrigerating room 1, the freezing temperature of freezing room 2, and the varied temperature of varied temperature room 3 by refrigerating temperature sensor 13, freezing temperature sensor 23, and varied temperature sensor 33, respectively, and adjust the temperature of each compartment by controlling refrigerating compensation heater 12 and varied temperature compensation heater 32.
For example, the preset critical temperature is, for example, 0 ℃, the preset refrigerating temperature threshold may be 1 ℃ higher than the refrigerating stop point temperature, the preset freezing temperature threshold may be 1 ℃ higher than the freezing stop point temperature, and the preset variable temperature threshold may be 1 ℃ higher than the variable temperature stop point temperature. In the running process of the refrigerator, under the condition that the set temperature Tcs of the temperature-changing chamber is more than 0 ℃, if the temperature-changing temperature reaches the temperature Tct of the temperature-changing stop point firstly and the refrigerating temperature does not reach the temperature of the refrigerating stop point, the control device starts the temperature-changing compensation heater 32 until the refrigerating temperature reaches the temperature of the refrigerating stop point or the temperature-changing temperature Tc is more than or equal to Tct +1 ℃, and the temperature-changing compensation heater is closed. The compressor 4 is operated until the refrigerating temperature reaches the refrigerating stop point temperature, the compressor 4 is turned off, and the control device obtains the freezing temperature of the freezing chamber 2. If the freezing temperature Tf is less than or equal to the freezing stop point temperature Tft, the control law remains unchanged, i.e. no additional control is made with respect to the freezing temperature. If the freezing temperature Tf meets the condition that Tft +1 ℃ is more than Tft, the control device starts the refrigeration compensating heater 12 when the compressor 4 is stopped, and the refrigeration compensating heater 12 is closed until the refrigeration temperature Tr and the refrigeration stop point temperature Trt meet the condition that Trt is more than or equal to Trt +1 ℃. If the freezing temperature Tf is greater than Tft +1 deg.c, the control means turns on the refrigeration compensating heater 12 during the shutdown of the compressor 4 until the refrigeration temperature rises to the refrigeration startup point temperature so that the compressor 4 is started, and the refrigeration compensating heater 12 is turned off.
In the running process of the refrigerator, if the refrigerating temperature of the refrigerating chamber 1 reaches the refrigerating stop point temperature Trt firstly and the temperature change temperature of the temperature change chamber 3 does not reach the temperature change stop point temperature, the refrigerating stop point temperature Trt can be adjusted downwards to a preset temperature value, so that the compressor 4 is not stopped, and the refrigerating compensation heater 12 is started at the same time. The preset temperature value may range from 0.3 ℃ to 0.8 ℃, for example, the preset temperature value may be 0.5 ℃. After the refrigeration compensating heater 12 is started, if the variable temperature reaches the variable temperature stop point temperature first, the compressor 4 is forced to stop and the refrigeration compensating heater 12 is controlled to be closed, and then the freezing temperature is adjusted according to the control mode of the freezing temperature. If the refrigerating temperature reaches the refrigerating stop point temperature firstly and the variable temperature does not reach the variable temperature stop point temperature, the compressor 4 is closed, and the condition for closing the refrigerating compensation heater 12 is determined according to the temperature range of the variable temperature. Wherein, if the temperature-changing temperature Tc and the temperature Tct of the temperature-changing stopping point meet Tct + 1, Tc is more than Tct, the refrigeration compensation heater 12 works during the shutdown of the compressor 4, and the refrigeration compensation heater 12 is closed until the refrigeration temperature Tr and the temperature Trt of the refrigeration stopping point meet Tr, Trt and Trt +1 ℃; if the temperature-changing temperature Tc and the temperature Tct of the temperature-changing stopping point satisfy Tc > Tct +1 ℃, the refrigeration compensating heater 12 works during the stopping of the compressor 4 until the refrigeration temperature reaches the temperature of the refrigeration starting point so as to enable the compressor 4 to start, and the refrigeration compensating heater 12 is closed.
In the running process of the refrigerator, under the condition that the set temperature Tcs of the temperature-changing chamber is less than or equal to 0 ℃, if the temperature-changing temperature reaches the temperature Tct of the temperature-changing stop point firstly and the refrigerating temperature does not reach the temperature of the refrigerating stop point, the compressor 4 is kept started to continue refrigerating until the refrigerating temperature reaches the temperature of the refrigerating stop point, and the compressor 4 is closed. The freezing temperature of the freezing chamber 3 is then acquired and adjusted according to the manner of control of the freezing temperature described above. If the refrigerating temperature reaches the refrigerating stop point temperature Trt firstly and the temperature-changing temperature does not reach the temperature-changing stop point temperature, the control mode is the same as the control mode when the set temperature Tcs of the temperature-changing chamber is more than 0 ℃.
In this way, the control device controls the opening and closing of the refrigeration compensating heater 12 and the temperature-varying compensating heater 32 in accordance with the temperatures of the respective compartments, so that the temperatures of the temperature-varying chamber 3 and the refrigeration compartment 1 can be brought to the vicinity of the respective shutdown temperatures. After the compressor 4 is turned off, the on-off of the refrigeration compensating heater 12 is controlled according to the freezing temperature of the freezing chamber 2, so that the stop time of the compressor 4 is adjusted to control the temperature of the freezing chamber 2, and finally the temperatures of the three chambers fluctuate near the temperature set by a user to reach an equilibrium state. Therefore, even if the refrigerator with a single circulation system is used, the temperature control of the three chambers can be more accurate at lower cost.
In addition, the freezing chamber of the refrigerator adopts an air cooling mode, so that automatic defrosting of the freezing chamber can be realized, and manual defrosting by a user is not needed. The refrigerating chamber and the temperature-changing chamber adopt a direct cooling mode, so that air circulation between the chambers is not needed, odor between the chambers is not caused, and the refrigerating chamber can be kept in a high-humidity state because the air of the refrigerating chamber only circulates in the refrigerating chamber. In some optional embodiments, the refrigerating chamber can be additionally provided with an air duct according to needs so as to change the refrigerating chamber into an air cooling mode.
Embodiments of the present invention also provide a control apparatus for a refrigeration apparatus including a refrigerating compartment, a temperature-varying compartment, a refrigeration system for refrigerating the refrigerating compartment and the temperature-varying compartment, and a compressor for driving the refrigeration system, the compressor being configured to be turned off in a case where a refrigerating temperature of the refrigerating compartment reaches a refrigerating stop point temperature, the control apparatus being configured to: acquiring a refrigerating temperature and a variable temperature of a variable temperature chamber; acquiring the set temperature of the temperature-changing chamber; and under the condition that the set temperature is higher than the preset critical temperature, the variable temperature reaches the variable temperature stop point temperature, and the refrigerating temperature does not reach the refrigerating stop point temperature, the variable temperature compensation heater positioned in the variable temperature chamber is started, and under the condition that the refrigerating temperature reaches the refrigerating stop point temperature or the variable temperature reaches the preset variable temperature threshold value, the variable temperature compensation heater is closed. The preset variable temperature threshold value is located between the variable temperature stop point temperature and the variable temperature start point temperature. The control device may include a general purpose processor, a special purpose processor, a conventional processor, a Digital Signal Processor (DSP), a plurality of microprocessors, one or more microprocessors in association with a DSP core, a controller, a microcontroller, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) circuits, any other type of Integrated Circuit (IC), a state machine, and the like.
In an alternative embodiment, the control device is further configured to: and under the condition that the refrigerating temperature reaches the refrigerating stop point temperature and the variable temperature does not reach the variable temperature stop point temperature, reducing the refrigerating stop point temperature by a preset temperature value, starting a refrigerating compensation heater positioned in the refrigerating chamber, and under the condition that the variable temperature reaches the variable temperature stop point temperature and the refrigerating temperature does not reach the reduced refrigerating stop point temperature, closing the compressor and the refrigerating compensation heater. In addition, if the refrigerating temperature reaches the reduced refrigerating stop point temperature and the variable temperature is greater than the variable temperature stop point temperature and is not greater than the preset variable temperature threshold value, the compressor is closed and the refrigerating compensation heater is kept on, and the refrigerating compensation heater is closed under the condition that the refrigerating temperature reaches the preset refrigerating temperature threshold value; and if the refrigerating temperature reaches the reduced refrigerating stop point temperature and the variable temperature is greater than the preset variable temperature threshold value, closing the compressor and keeping the refrigerating compensation heater on, and closing the refrigerating compensation heater under the condition that the refrigerating temperature reaches the refrigerating start point temperature.
In an optional embodiment, the refrigeration apparatus may further include a freezing chamber, the refrigeration system is further configured to refrigerate the freezing chamber, and the control device is further configured to obtain the freezing temperature of the freezing chamber in a case where the variable-temperature reaches the variable-temperature shutdown point temperature and the refrigerating temperature reaches the refrigerating shutdown point temperature. And if the freezing temperature is higher than the freezing stop point temperature and not higher than the preset freezing temperature threshold, starting a refrigeration compensation heater positioned in the refrigerating chamber, and closing the refrigeration compensation heater under the condition that the refrigeration temperature reaches the preset refrigeration temperature threshold. And if the freezing temperature is higher than the preset freezing temperature threshold value, starting a refrigeration compensation heater positioned in the refrigerating chamber, and closing the refrigeration compensation heater under the condition that the refrigeration temperature reaches the refrigeration starting point temperature.
Correspondingly, the embodiment of the invention also provides a refrigeration device, which can comprise the control device for the refrigeration device. The refrigeration device may be a refrigerator or an ice chest, for example, a three-compartment three-door refrigerator or a three-compartment two-door refrigerator.
Embodiments also provide a machine-readable storage medium having stored thereon instructions for enabling a processor to execute the above-described control method for a refrigeration appliance when executed by the processor.
While the invention has been described in detail with reference to the drawings, the invention is not limited to the details of the embodiments, and various simple modifications can be made within the technical spirit of the embodiments of the invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention will not be described separately for the various possible combinations.
Those skilled in the art will appreciate that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes instructions for causing a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the idea of the embodiments of the present invention.
Claims (15)
1. A control method for a refrigeration apparatus, characterized in that the refrigeration apparatus includes a refrigerating chamber, a temperature-changing chamber, a refrigeration system for refrigerating the refrigerating chamber and the temperature-changing chamber, and a compressor for driving the refrigeration system, the compressor being configured to be turned off in a case where a refrigerating temperature of the refrigerating chamber reaches a refrigerating stop point temperature, the control method comprising:
acquiring the refrigerating temperature and the variable temperature of the variable temperature chamber;
acquiring the set temperature of the temperature-changing chamber;
under the condition that the set temperature is higher than a preset critical temperature, the variable temperature reaches a variable temperature shutdown point temperature, and the refrigerating temperature does not reach the refrigerating shutdown point temperature, a variable temperature compensation heater positioned in the variable temperature chamber is started; and
under the condition that the refrigerating temperature reaches the refrigerating stop point temperature or the temperature-changing temperature reaches a preset temperature-changing temperature threshold value, closing the temperature-changing compensation heater;
and the preset variable-temperature threshold is positioned between the variable-temperature shutdown point temperature and the variable-temperature startup point temperature.
2. The control method according to claim 1, characterized by further comprising:
when the refrigerating temperature reaches the refrigerating stop point temperature and the variable-temperature does not reach the variable-temperature stop point temperature, reducing the refrigerating stop point temperature by a preset temperature value and starting a refrigerating compensation heater positioned in the refrigerating chamber; and
and under the condition that the variable temperature reaches the variable temperature stop point temperature and the refrigerating temperature does not reach the reduced refrigerating stop point temperature, the compressor and the refrigerating compensation heater are closed.
3. The control method according to claim 2, characterized by further comprising:
under the condition that the refrigerating temperature reaches the reduced refrigerating stop point temperature and the temperature-changing temperature is higher than the temperature-changing stop point temperature and not higher than the preset temperature-changing temperature threshold value, closing the compressor and keeping the refrigerating compensation heater on; and
under the condition that the refrigerating temperature reaches a preset refrigerating temperature threshold value, closing the refrigerating compensation heater;
and the preset refrigeration temperature threshold value is positioned between the refrigeration stop point temperature and the refrigeration start point temperature.
4. The control method according to claim 2, characterized by further comprising:
under the condition that the refrigerating temperature reaches the reduced refrigerating stop point temperature and the temperature-changing temperature is greater than the preset temperature-changing temperature threshold value, closing the compressor and keeping the refrigerating compensation heater on; and
and under the condition that the refrigerating temperature reaches the refrigerating starting point temperature, closing the refrigerating compensation heater.
5. The control method according to any one of claims 1 to 4, wherein the refrigeration apparatus further includes a freezing chamber, the refrigeration system is further configured to refrigerate the freezing chamber, and the control method further includes:
under the condition that the variable-temperature reaches the variable-temperature stop point temperature and the refrigerating temperature reaches the refrigerating stop point temperature, acquiring the freezing temperature of the freezing chamber;
under the condition that the freezing temperature is greater than the freezing stop point temperature and not greater than a preset freezing temperature threshold value, a refrigerating compensation heater located in the refrigerating chamber is started; and
under the condition that the refrigerating temperature reaches a preset refrigerating temperature threshold value, closing the refrigerating compensation heater;
the preset freezing temperature threshold value is located between the freezing stop point temperature and the freezing starting point temperature, and the preset refrigerating temperature threshold value is located between the refrigerating stop point temperature and the refrigerating starting point temperature.
6. The control method according to any one of claims 1 to 4, wherein the refrigeration apparatus further includes a freezing chamber, the refrigeration system is further configured to refrigerate the freezing chamber, and the control method further includes:
under the condition that the variable-temperature reaches the variable-temperature stop point temperature and the refrigerating temperature reaches the refrigerating stop point temperature, acquiring the freezing temperature of the freezing chamber;
under the condition that the freezing temperature is greater than a preset freezing temperature threshold value, a refrigeration compensation heater positioned in the refrigeration chamber is started; and
under the condition that the refrigerating temperature reaches the refrigerating starting point temperature, the refrigerating compensation heater is turned off;
and the preset freezing temperature threshold value is positioned between the freezing stop point temperature and the freezing start point temperature.
7. A control device for a refrigeration apparatus, characterized in that the refrigeration apparatus includes a refrigerating chamber, a temperature-changing chamber, a refrigeration system for refrigerating the refrigerating chamber and the temperature-changing chamber, and a compressor for driving the refrigeration system, the compressor being configured to be turned off in a case where a refrigerating temperature of the refrigerating chamber reaches a refrigerating stop point temperature, the control device being configured to:
acquiring the refrigerating temperature and the variable temperature of the variable temperature chamber;
acquiring the set temperature of the temperature-changing chamber;
under the condition that the set temperature is higher than a preset critical temperature, the variable temperature reaches a variable temperature shutdown point temperature, and the refrigerating temperature does not reach the refrigerating shutdown point temperature, a variable temperature compensation heater positioned in the variable temperature chamber is started; and
under the condition that the refrigerating temperature reaches the refrigerating stop point temperature or the temperature-changing temperature reaches a preset temperature-changing temperature threshold value, closing the temperature-changing compensation heater;
and the preset variable-temperature threshold is positioned between the variable-temperature shutdown point temperature and the variable-temperature startup point temperature.
8. The control device of claim 7, further configured to:
when the refrigerating temperature reaches the refrigerating stop point temperature and the variable-temperature does not reach the variable-temperature stop point temperature, reducing the refrigerating stop point temperature by a preset temperature value and starting a refrigerating compensation heater positioned in the refrigerating chamber; and
and under the condition that the variable temperature reaches the variable temperature stop point temperature and the refrigerating temperature does not reach the reduced refrigerating stop point temperature, the compressor and the refrigerating compensation heater are closed.
9. The control device of claim 8, wherein the control device is further configured to:
under the condition that the refrigerating temperature reaches the reduced refrigerating stop point temperature and the temperature-changing temperature is higher than the temperature-changing stop point temperature and not higher than the preset temperature-changing temperature threshold value, closing the compressor and keeping the refrigerating compensation heater on; and
under the condition that the refrigerating temperature reaches a preset refrigerating temperature threshold value, closing the refrigerating compensation heater;
and the preset refrigeration temperature threshold value is positioned between the refrigeration stop point temperature and the refrigeration start point temperature.
10. The control device of claim 8, wherein the control device is further configured to:
under the condition that the refrigerating temperature reaches the reduced refrigerating stop point temperature and the temperature-changing temperature is greater than the preset temperature-changing temperature threshold value, closing the compressor and keeping the refrigerating compensation heater on; and
and under the condition that the refrigerating temperature reaches the refrigerating starting point temperature, closing the refrigerating compensation heater.
11. The control device of any one of claims 7 to 10, wherein the refrigeration appliance further comprises a freezer compartment, the refrigeration system further being configured to refrigerate the freezer compartment, the control device further being configured to:
under the condition that the variable-temperature reaches the variable-temperature stop point temperature and the refrigerating temperature reaches the refrigerating stop point temperature, acquiring the freezing temperature of the freezing chamber;
under the condition that the freezing temperature is greater than the freezing stop point temperature and not greater than a preset freezing temperature threshold value, a refrigerating compensation heater located in the refrigerating chamber is started; and
under the condition that the refrigerating temperature reaches a preset refrigerating temperature threshold value, closing the refrigerating compensation heater;
the preset freezing temperature threshold value is located between the freezing stop point temperature and the freezing starting point temperature, and the preset refrigerating temperature threshold value is located between the refrigerating stop point temperature and the refrigerating starting point temperature.
12. The control device of any one of claims 7 to 10, wherein the refrigeration appliance further comprises a freezer compartment, the refrigeration system further being configured to refrigerate the freezer compartment, the control device further being configured to:
under the condition that the variable-temperature reaches the variable-temperature stop point temperature and the refrigerating temperature reaches the refrigerating stop point temperature, acquiring the freezing temperature of the freezing chamber;
under the condition that the freezing temperature is greater than a preset freezing temperature threshold value, a refrigeration compensation heater positioned in the refrigeration chamber is started; and
under the condition that the refrigerating temperature reaches the refrigerating starting point temperature, the refrigerating compensation heater is turned off;
and the preset freezing temperature threshold value is positioned between the freezing stop point temperature and the freezing start point temperature.
13. Refrigeration appliance, characterized in that it comprises a control device for a refrigeration appliance according to any one of claims 7 to 12.
14. A refrigeration device according to claim 13, wherein the refrigeration device is a refrigerator or freezer.
15. A machine-readable storage medium, characterized in that it has stored thereon instructions for enabling a processor, when executed by said processor, to carry out a control method for a refrigeration appliance according to any one of claims 1 to 6.
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