CN106524648B - Refrigerator and control method thereof - Google Patents
Refrigerator and control method thereof Download PDFInfo
- Publication number
- CN106524648B CN106524648B CN201611184099.0A CN201611184099A CN106524648B CN 106524648 B CN106524648 B CN 106524648B CN 201611184099 A CN201611184099 A CN 201611184099A CN 106524648 B CN106524648 B CN 106524648B
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- temperature
- cold
- temperature sensor
- fan
- compressor
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005057 refrigeration Methods 0.000 claims abstract description 38
- 230000008014 freezing Effects 0.000 claims abstract description 30
- 238000007710 freezing Methods 0.000 claims abstract description 30
- 239000011232 storage material Substances 0.000 claims description 6
- 238000009825 accumulation Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 208000001034 Frostbite Diseases 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000003111 delayed effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
-
- 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
-
- 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
-
- 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
- F25D2600/00—Control issues
-
- 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
-
- 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
- F25D2700/121—Sensors measuring the inside temperature of particular compartments
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
the invention provides a refrigerator and a control method thereof, wherein the refrigerator comprises a refrigerating chamber, a refrigerating system for providing cold energy for the refrigerating chamber, an air duct and a fan for conveying the cold energy generated by the refrigerating system into the refrigerating chamber, and a controller, wherein the refrigerating system comprises a compressor, a condenser, a throttling device and an evaporator which are sequentially connected, and the refrigerating chamber has a refrigerating mode and a freezing mode; the refrigerator still sets up or is located near the evaporimeter in the wind channel and the regenerator that links to each other with the evaporimeter, be used for the first temperature sensor of the temperature of sensing regenerator and locate indoor being used for the sensing of refrigeration room the second temperature sensor of the indoor temperature of refrigeration room, first temperature sensor, second temperature sensor all with controller electric connection, when the refrigeration room is cold-stored mode, the compressor starts and provides cold volume and cold-storage device for the cold-storage room and provide cold volume and go on in turn to can reach the beneficial effect that keeps fresh and prevent frostbite food for the regenerator.
Description
Technical Field
The present invention relates to the field of refrigeration equipment, and in particular, to a refrigerator having a regenerator and capable of switching between a cold storage mode and a freezing mode, and a control method thereof.
background
The refrigerator is one of the essential household appliances for many families, provides convenience for the life of people, and along with the development of the refrigerator technology and the diversification of the demands of consumers, the refrigerator capable of switching between a refrigeration mode and a freezing mode appears to meet the demands of the consumers.
In the existing refrigerator capable of switching between the cold storage mode and the freezing mode, after the cold storage mode is switched to the cold storage mode, cold air is directly blown to food from an air outlet originally used in the freezing mode in the process of supplying cold energy to a refrigerating chamber by a refrigerating system, and the cold air is generally below-20 ℃ and easily freezes the food.
In view of the above, it is desirable to provide a new refrigerator and a control method thereof to solve the above problems.
Disclosure of Invention
The invention aims to provide a refrigerator with a cold accumulator and capable of switching between a cold storage mode and a freezing mode and a control method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme: a refrigerator comprises a refrigerating chamber, a refrigerating system for providing refrigerating capacity for the refrigerating chamber, an air channel and a fan for conveying the refrigerating capacity generated by the refrigerating system into the refrigerating chamber, and a controller, wherein the refrigerating system comprises a compressor, a condenser, a throttling device and an evaporator which are sequentially connected; the refrigerator also comprises a cold accumulator, a first temperature sensor and a second temperature sensor, wherein the cold accumulator is arranged close to the evaporator or positioned in the air channel and connected with the evaporator, the first temperature sensor is used for sensing the temperature of the cold accumulator, the second temperature sensor is arranged in the refrigerating chamber and used for sensing the temperature in the refrigerating chamber, the first temperature sensor and the second temperature sensor are both electrically connected with the controller, and when the refrigerating chamber is in a refrigerating mode, the controller controls the compressor and the fan to be alternately started according to the temperatures fed back by the first temperature sensor and the second temperature sensor; when the refrigeration chamber is in a refrigeration mode, the controller controls the compressor to start and stop according to the temperature fed back by the second temperature sensor, and controls the fan and the compressor to start synchronously.
as a further improved technical scheme of the invention, the evaporator and the regenerator are arranged at intervals, and the refrigerator further comprises a heat transfer plate for connecting the evaporator and the regenerator.
in order to achieve the above object, the present invention further provides a control method for controlling the refrigerator, the control method comprising the steps of: judging a set mode of the refrigerating chamber, and if the set mode is a freezing mode, controlling the start and stop of the compressor and the fan by the controller according to the temperatures fed back by the second temperature sensor and the first temperature sensor; if the set mode is a refrigeration mode, the controller controls the compressor and the fan to be started alternately according to the temperatures fed back by the first temperature sensor and the second temperature sensor; the setting mode in the above steps is a freezing mode, and the method specifically comprises the following steps:
a 1: the second temperature sensor senses the temperature of the refrigerating compartment;
a 2: judging whether the temperature of the refrigerating chamber reaches a freezing starting point, if so, starting the compressor and the fan at the same time and skipping to the step a 3; if not, return to step a 1.
a 3: judging whether the temperature of the refrigerating chamber reaches a freezing shutdown point, if so, stopping the compressor; if not, the compressor and the fan continuously operate until the temperature of the refrigerating chamber reaches a freezing shutdown point.
As a further improved technical solution of the present invention, the setting mode in the above steps is a refrigeration mode, and the controller controls the compressor and the fan to start alternately according to the temperatures fed back by the first temperature sensor and the second temperature sensor specifically includes the following steps:
S1, sensing the temperature of the refrigerating compartment by a second temperature sensor;
s2: the controller judges whether the refrigerating chamber reaches a refrigerating starting point or not according to the temperature sensed by the second temperature sensor, and if so, the controller controls the compressor and the fan to be alternately started according to the temperature sensed by the first temperature sensor; if not, the process returns to step S1.
as a further improved technical solution of the present invention, the regenerator is filled with a coolant, the refrigerating compartment reaches a refrigerating start point in step S2, and the controller controls the compressor and the fan to alternately start according to the temperature sensed by the first temperature sensor, specifically including the following steps:
S21: the first temperature sensor senses the temperature of the cold accumulator;
S22: and judging whether the temperature of the cold accumulator is lower than or equal to the phase change temperature of the cold accumulating agent, if so, starting the fan, keeping the compressor in a shutdown state, and if not, starting the compressor, keeping the fan in the shutdown state until the temperature sensed by the first temperature sensor is lower than or equal to the phase change temperature of the cold accumulating agent.
As a further improved technical solution of the present invention, the control method after the fan is started in step S22 further includes the following steps:
s23: the controller judges whether the refrigeration chamber reaches a refrigeration shutdown point or not according to the temperature sensed by the second temperature sensor, if so, the fan is stopped, and the set mode of the refrigeration chamber is judged again; if not, the fan keeps the running state, and the step returns to the step S21.
As a further improved technical solution of the present invention, the controller further has a first preset temperature and a second preset temperature which are preset, both the first preset temperature and the second preset temperature are lower than a temperature corresponding to the refrigeration shutdown point, and the first preset temperature is lower than the second preset temperature, and after the compressor is shutdown in step a3, the control method further includes the following steps:
a 4: the first temperature sensor senses the temperature of the cold accumulator and judges whether the temperature of the cold accumulator is lower than a first preset temperature or not, if yes, the fan continuously operates until the temperature of the cold accumulator rises from the first preset temperature to a second preset temperature, then the fan is stopped, and the set mode of the refrigerating chamber is judged again; if not, the fan is stopped, and the set mode of the refrigeration chamber is judged again.
as a further improved technical solution of the present invention, after the compressor is started, the cold storage device stores cold energy.
As a further improved technical scheme of the invention, the phase change temperature of the cold storage agent is between-8 ℃ and-3 ℃.
The invention has the beneficial effects that: according to the refrigerator, the cold accumulator which is close to the evaporator or positioned in the air channel and connected with the evaporator is arranged, after the refrigerating chamber is converted into a refrigerating mode, the controller controls the compressor and the fan to be started alternately according to the temperature of the cold accumulator sensed by the first temperature sensor and the temperature of the refrigerating chamber sensed by the second temperature sensor, namely, the cold accumulator accumulates cold when the compressor is started; when the fan is started, the cold energy accumulated by the cold accumulator is conveyed to the refrigerating chamber to exchange heat with the refrigerating chamber, namely, the cold energy generated by the evaporator is not directly conveyed into the refrigerating chamber, so that food cannot be frozen.
Drawings
Fig. 1 is a flowchart of a control method in the present invention.
Detailed Description
the present invention will be described in detail with reference to the embodiments shown in the drawings, and fig. 1 shows a preferred embodiment of the present invention.
The invention provides a refrigerator which comprises a refrigerating chamber, a second temperature sensor, a refrigerating system, an air channel, a fan, a cold accumulator, a first temperature sensor and a controller, wherein the second temperature sensor is arranged in the refrigerating chamber and used for sensing the temperature in the refrigerating chamber, the refrigerating system is used for providing cold energy for the refrigerating chamber, the air channel and the fan are used for conveying the cold energy generated by the refrigerating system to the refrigerating chamber, the cold accumulator is used for accumulating the cold energy generated by the refrigerating system, and the first temperature sensor is used for sensing the temperature of the cold accumulator.
The refrigerating system comprises a compressor, a condenser, a throttling device and an evaporator which are connected in sequence. The first temperature sensor, the second temperature sensor, the fan and the compressor are all electrically connected with the controller.
Furthermore, a cold storage agent is filled in the cold storage device, the cold storage device is arranged close to the evaporator or is positioned in the air duct and is connected with the evaporator, so that cold energy generated by the evaporator is stored after the compressor is started.
When the cold accumulator and the evaporator are arranged at intervals, the refrigerator further comprises a heat transfer plate for connecting the cold accumulator and the evaporator, so that the cold accumulator can accumulate cold energy generated by the evaporator conveniently after the compressor is started.
Further, the refrigeration compartment has a refrigeration mode and a freezing mode; when the refrigerating chamber is in a refrigerating mode, the controller controls the start and stop of the compressor and the fan according to the temperature fed back by the first temperature sensor and the second temperature sensor.
Specifically, when the refrigeration chamber is in a refrigeration mode, after the controller judges that the refrigeration chamber reaches a refrigeration starting point according to the temperature fed back by the second temperature sensor, the compressor and the fan are controlled to be started simultaneously to provide refrigeration capacity for the refrigeration chamber; and when the controller judges that the refrigerating chamber reaches a freezing shutdown point according to the temperature sensed by the second temperature sensor, the compressor is controlled to stop.
After the compressor is started, the cold accumulator accumulates cold energy generated by the evaporator, and therefore, the temperature of the cold accumulator decreases. After the compressor is shut down, the controller judges whether the temperature of the cold accumulator is lower than a first preset temperature or not according to the temperature fed back by the first temperature sensor, if so, the controller controls the fan to continuously operate so as to provide cold energy for the refrigerating chamber by using the cold energy accumulated by the cold accumulator, and delay the time that the temperature in the refrigerating chamber reaches a freezing starting point, namely, the starting frequency of the compressor is reduced, thereby achieving the effect of saving energy.
The first preset temperature is lower than the temperature corresponding to the freezing power-off point, so that cold energy can be provided for the refrigerating chamber through the operation of the fan, and the time for the temperature in the refrigerating chamber to reach the freezing power-on point is delayed.
When the refrigerating chamber is in a refrigerating mode, the controller controls the compressor and the fan to be alternately started according to the temperatures fed back by the first temperature sensor and the second temperature sensor, namely the compressor is started to provide cold for the cold accumulator and the cold accumulator provides cold for the refrigerating chamber alternately.
when the refrigerating chamber is in a refrigerating mode, after the controller judges that the temperature in the refrigerating chamber reaches a refrigerating starting point according to the temperature fed back by the second temperature sensor, whether the compressor needs to be started to provide cold energy for the cold accumulator is further judged according to the temperature sensed by the first temperature sensor.
specifically, when the controller judges that the temperature of the cold accumulator is lower than or equal to the phase change temperature of the cold accumulation agent according to the temperature sensed by the first temperature sensor, the compressor keeps a shutdown state, and the fan is started to convey the cold accumulated by the cold accumulator to the refrigerating chamber to provide the cold for the refrigerating chamber. When the cold energy accumulated by the cold accumulator is transmitted to the refrigerating chamber, the temperature of the cold air transmitted to the refrigerating chamber is higher than the temperature of the cold air transmitted to the refrigerating chamber by directly starting the compressor, so that the cold energy accumulated by the cold accumulator can exchange heat with food in the refrigerating chamber to achieve the effect of keeping fresh when transmitted to the refrigerating chamber, and the food is not easy to be frozen.
When the controller judges that the temperature of the cold accumulator is higher than the phase change temperature of the cold accumulating agent according to the temperature sensed by the first temperature sensor, the compressor is started to provide cold for the cold accumulator, meanwhile, the fan keeps a shutdown state, until the temperature of the cold accumulator is lower than or equal to the phase change temperature of the cold accumulating agent, the compressor is shut down, and the fan is started to convey the cold accumulated by the cold accumulator to the refrigerating chamber to provide the cold for the refrigerating chamber, so that the fresh-keeping effect is achieved.
Furthermore, the phase transition temperature of the cold storage agent is between-8 ℃ and-3 ℃, so that when the cold energy accumulated by the cold storage device is transmitted to the refrigerating chamber, the temperature of the cold air transmitted into the refrigerating chamber is higher than the temperature of the cold air transmitted into the refrigerating chamber by directly starting the compressor, and therefore when the cold energy accumulated by the cold storage device is transmitted to the refrigerating chamber, the cold energy can exchange heat with food in the refrigerating chamber to achieve the effect of keeping the food fresh and is not easy to freeze and hurt the food.
Referring to fig. 1, the present invention further provides a control method of the refrigerator, including the following steps: judging a set mode of the refrigerating chamber, and if the set mode is a freezing mode, controlling the start and stop of the compressor and the fan by the controller according to the temperatures fed back by the second temperature sensor and the first temperature sensor; and if the set mode is a refrigeration mode, the controller controls the compressor and the fan to be started alternately according to the temperatures fed back by the first temperature sensor and the second temperature sensor.
The setting mode in the above steps is a refrigeration mode, and the controller controls the compressor and the fan to alternately start according to the temperatures fed back by the first temperature sensor and the second temperature sensor, specifically comprising the following steps:
S1, sensing the temperature of the refrigerating compartment by a second temperature sensor;
S2: the controller judges whether the refrigerating chamber reaches a refrigerating starting point or not according to the temperature sensed by the second temperature sensor, and if so, the controller controls the compressor and the fan to be alternately started according to the temperature sensed by the first temperature sensor; if not, the process returns to step S1.
in the step S2, when the refrigerating compartment reaches the refrigerating start-up point, the controller controls the compressor and the fan to alternately start up according to the temperature sensed by the first temperature sensor, which specifically includes the following steps:
S21: the first temperature sensor senses the temperature of the cold accumulator;
S22: and judging whether the temperature of the cold accumulator is lower than or equal to the phase change temperature of the cold accumulating agent, if so, starting the fan, keeping the compressor in a shutdown state, and if not, starting the compressor, keeping the fan in the shutdown state until the temperature sensed by the first temperature sensor is lower than or equal to the phase change temperature of the cold accumulating agent.
When the temperature of the cold accumulator is lower than or equal to the phase transition temperature of the cold accumulation agent, the compressor does not need to be started to provide cold for the cold accumulator, the fan is directly started, the cold accumulated by the cold accumulator is conveyed to the interior of the refrigerating chamber to exchange heat with food in the refrigerating chamber, so that the fresh-keeping effect is achieved, and meanwhile, the food can be prevented from being frozen.
when the temperature of the cold accumulator is higher than the phase change temperature of the cold accumulation agent, the cold accumulated by the cold accumulator is not enough to provide cold for the refrigerating chamber, so that the compressor is started firstly to provide the cold for the cold accumulator, and meanwhile, the fan is kept in a stop state.
when the fan is stopped, the compressor is started to provide cold energy for the cold accumulator, the first temperature sensor senses the temperature of the cold accumulator in real time and feeds the temperature back to the controller, the controller controls the compressor to stop when the temperature sensed by the first temperature sensor is lower than or equal to the phase change temperature of the cold storage agent, and meanwhile, the fan is started to provide the cold energy accumulated by the cold accumulator to the refrigerating chamber, so that the effects of keeping fresh and preventing food from being frozen are achieved.
Further, in step S22, the control method further includes the following steps after the fan is started:
S23: the controller judges whether the refrigeration chamber reaches a refrigeration shutdown point or not according to the temperature sensed by the second temperature sensor, if so, the fan is stopped, and the set mode of the refrigeration chamber is judged again; if not, the fan keeps the running state, and the step returns to the step S21.
Namely, in the process that the fan operates to convey the cold energy accumulated by the cold accumulator to the refrigerating chamber, the first temperature sensor senses the temperature of the cold accumulator in real time so as to control the fan to stop when the temperature of the cold accumulator is higher than the phase change temperature of the cold storage agent, and the compressor starts to provide the cold energy for the cold accumulator, so that the temperature of the cold accumulator is not higher than the phase change temperature in the process of operating the fan, and the refrigerating effect is enhanced.
in the above step, when the setting mode is the freezing mode, the controller controls the start and stop of the compressor and the fan according to the temperatures fed back by the second temperature sensor and the first temperature sensor, specifically including the following steps:
a 1: the second temperature sensor senses the temperature of the refrigerating compartment;
a 2: judging whether the temperature of the refrigerating chamber reaches a freezing starting point, if so, starting the compressor and the fan at the same time and skipping to the step a 3; if not, return to step a 1.
And c, simultaneously starting the compressor and the fan in the step a2 to provide cold for the refrigerating chamber.
a 3: judging whether the temperature of the refrigerating chamber reaches a freezing shutdown point, if so, stopping the compressor; if not, the compressor and the fan continuously operate until the temperature of the refrigerating chamber reaches a freezing shutdown point.
The controller also has a preset first preset temperature and a preset second temperature, the first preset temperature and the second preset temperature are both lower than the temperature corresponding to the freezing shutdown point, and the first preset temperature is lower than the second preset temperature, after the compressor is shut down in the step a3, the control method further comprises the following steps:
a 4: the first temperature sensor senses the temperature of the cold accumulator and judges whether the temperature of the cold accumulator is lower than a first preset temperature or not, if yes, the fan continuously operates until the temperature of the cold accumulator rises from the first preset temperature to a second preset temperature, then the fan is stopped, and the set mode of the refrigerating chamber is judged again; if not, the fan is stopped, and the set mode of the refrigeration chamber is judged again.
Namely, after the temperature in the refrigerating chamber reaches a freezing shutdown point, the compressor is controlled to stop, and meanwhile, if the temperature of the regenerator is lower than a first preset temperature, the fan continuously operates to provide cold energy for the refrigerating chamber by using the cold energy accumulated by the regenerator, so that the time for the temperature in the refrigerating chamber to reach the freezing startup point is delayed, namely, the starting frequency of the compressor is reduced, and the energy-saving effect is achieved.
When the compressor is stopped and the fan continuously operates to convey the cold accumulated by the cold accumulator to the refrigerating chamber, the first temperature sensor senses the temperature of the cold accumulator in real time and feeds the temperature back to the controller, and when the temperature sensed by the first temperature sensor and received by the controller reaches a second preset temperature, the fan is controlled to stop.
In this embodiment, the first predetermined temperature is 5 ℃ lower than the freeze off point and the second predetermined temperature is 3 ℃ lower than the freeze off point.
in summary, in the refrigerator of the present invention, the cold accumulator is disposed near the evaporator or in the air duct and connected to the evaporator, and after the refrigeration compartment is switched to the cold storage mode, the controller controls the compressor and the fan to start alternately according to the temperature of the cold accumulator sensed by the first temperature sensor and the temperature of the refrigeration compartment sensed by the second temperature sensor, that is, the cold accumulator accumulates cold when the compressor starts; when the fan is started, the cold energy accumulated by the cold accumulator is conveyed to the refrigerating chamber to exchange heat with the refrigerating chamber, namely, the cold energy generated by the evaporator is not directly conveyed into the refrigerating chamber, so that food cannot be frozen.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (7)
1. A control method for controlling a refrigerator comprises a refrigerating chamber, a refrigerating system for providing cold for the refrigerating chamber, an air channel and a fan for conveying the cold generated by the refrigerating system into the refrigerating chamber, and a controller, wherein the refrigerating system comprises a compressor, a condenser, a throttling device and an evaporator which are sequentially connected; the refrigerator is still including being close to the evaporimeter sets up or is located in the wind channel and with the regenerator that the evaporimeter links to each other, be used for the sensing the first temperature sensor of the temperature of regenerator and locate indoor being used for the sensing between the refrigeration the indoor second temperature sensor of the temperature between the refrigeration, first temperature sensor, second temperature sensor all with controller electric connection, its characterized in that: the control method comprises the following steps: judging a set mode of the refrigerating chamber, and if the set mode is a freezing mode, controlling the start and stop of the compressor and the fan by the controller according to the temperatures fed back by the second temperature sensor and the first temperature sensor; if the set mode is a refrigeration mode, the controller controls the compressor and the fan to be started alternately according to the temperatures fed back by the first temperature sensor and the second temperature sensor;
The setting mode in the above steps is a freezing mode, and the method specifically comprises the following steps:
a 1: the second temperature sensor senses the temperature of the refrigerating compartment;
a 2: judging whether the temperature of the refrigerating chamber reaches a freezing starting point, if so, starting the compressor and the fan at the same time and skipping to the step a 3; if not, returning to the step a 1;
a 3: judging whether the temperature of the refrigerating chamber reaches a freezing shutdown point, if so, stopping the compressor; if not, the compressor and the fan continuously operate until the temperature of the refrigerating chamber reaches a freezing shutdown point.
2. The control method according to claim 1, characterized in that: the setting mode in the above steps is a refrigeration mode, and the controller controls the compressor and the fan to alternately start according to the temperatures fed back by the first temperature sensor and the second temperature sensor, specifically comprising the following steps:
S1, sensing the temperature of the refrigerating compartment by a second temperature sensor;
S2: the controller judges whether the refrigerating chamber reaches a refrigerating starting point or not according to the temperature sensed by the second temperature sensor, and if so, the controller controls the compressor and the fan to be alternately started according to the temperature sensed by the first temperature sensor; if not, the process returns to step S1.
3. The control method according to claim 2, characterized in that: the cold accumulator is filled with cold accumulation agent, the refrigerating chamber reaches a refrigerating starting point in the step S2, and the controller controls the compressor and the fan to be alternately started according to the temperature sensed by the first temperature sensor, and the cold accumulator specifically comprises the following steps:
S21: the first temperature sensor senses the temperature of the cold accumulator;
s22: and judging whether the temperature of the cold accumulator is lower than or equal to the phase change temperature of the cold accumulating agent, if so, starting the fan, keeping the compressor in a shutdown state, and if not, starting the compressor, keeping the fan in the shutdown state until the temperature sensed by the first temperature sensor is lower than or equal to the phase change temperature of the cold accumulating agent.
4. a control method according to claim 3, characterized in that: the control method after the fan is started in step S22 further includes the steps of:
S23: the controller judges whether the refrigeration chamber reaches a refrigeration shutdown point or not according to the temperature sensed by the second temperature sensor, if so, the fan is stopped, and the set mode of the refrigeration chamber is judged again; if not, the fan keeps the running state, and the step returns to the step S21.
5. The control method according to claim 1, characterized in that: the controller also has a preset first preset temperature and a preset second temperature, the first preset temperature and the second preset temperature are both lower than the temperature corresponding to the freezing shutdown point, and the first preset temperature is lower than the second preset temperature, after the compressor is shut down in the step a3, the control method further comprises the following steps:
a 4: the first temperature sensor senses the temperature of the cold accumulator and judges whether the temperature of the cold accumulator is lower than a first preset temperature or not, if yes, the fan continuously operates until the temperature of the cold accumulator rises from the first preset temperature to a second preset temperature, then the fan is stopped, and the set mode of the refrigerating chamber is judged again; if not, the fan is stopped, and the set mode of the refrigeration chamber is judged again.
6. The control method according to claim 1, characterized in that: after the compressor is started, the cold accumulator accumulates cold.
7. A control method according to claim 3, characterized in that: the phase change temperature of the cold storage agent is between-8 ℃ and-3 ℃.
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| CN107421208B (en) * | 2017-07-26 | 2019-11-01 | 合肥华凌股份有限公司 | Freezer compartment of refrigerator temperature control method, system, device, storage medium and refrigerator |
| CN108759290B (en) * | 2018-06-07 | 2020-06-09 | 长虹美菱股份有限公司 | Frequency control method for compressor of variable frequency refrigerator |
| CN110671859B (en) * | 2018-07-02 | 2022-11-18 | 海尔智家股份有限公司 | Refrigerator |
| CN110579058B (en) * | 2019-09-03 | 2021-07-20 | 合肥华凌股份有限公司 | Direct-cooling refrigerator and control method, system and device thereof |
| CN113154790B (en) * | 2021-02-26 | 2022-04-29 | 珠海格力电器股份有限公司 | Refrigerator control method and device and refrigerator |
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