CN106642879B - Refrigerator and control method thereof - Google Patents

Refrigerator and control method thereof Download PDF

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Publication number
CN106642879B
CN106642879B CN201610929740.2A CN201610929740A CN106642879B CN 106642879 B CN106642879 B CN 106642879B CN 201610929740 A CN201610929740 A CN 201610929740A CN 106642879 B CN106642879 B CN 106642879B
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temperature
gear
heating element
refrigerating chamber
gears
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CN106642879A (en
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陈庆
吴光瑞
刘明勇
欧阳晓敏
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Haier Smart Home Co Ltd
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Qingdao Haier Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/003Arrangement or mounting of control or safety devices for movable devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00Means for sensing or measuring; Sensors therefor
    • F25D2700/12Sensors measuring the inside temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00Means for sensing or measuring; Sensors therefor
    • F25D2700/12Sensors measuring the inside temperature
    • F25D2700/121Sensors measuring the inside temperature of particular compartments

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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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention provides a refrigerator and a control method thereof, wherein the refrigerator comprises a box body, a refrigerating chamber, a gear shifting device arranged on the box body and used for adjusting the gear of the refrigerating chamber, a refrigerating system arranged in the box body and used for providing cold energy for the refrigerating chamber, and a controller, wherein an air outlet communicated with an air duct of the refrigerating system is arranged in the refrigerating chamber; the controller adjusts the power of the heating element according to the difference between the temperature corresponding to the set gear and the temperature sensed by the second temperature sensor, so that the difference between the temperature corresponding to the gear and the temperature sensed by the second temperature sensor is equal to a set first temperature difference or is within a set first temperature difference interval; so that the temperature/relative humidity in the refrigerating compartment is relatively uniform and has small fluctuation.

Description

Refrigerator and control method thereof
Technical Field
The present invention relates to the field of refrigeration devices, and more particularly, to a refrigerator and a control method thereof capable of reducing fluctuations in temperature and relative humidity in a refrigerating compartment during the process of adjusting the temperature and relative humidity in the refrigerating compartment.
Background
In the conventional refrigerator, a heating wire is attached to a refrigerating chamber, so that the temperature/relative humidity in the refrigerating chamber can be adjusted in a wide range. When the set temperature in the refrigerating chamber is higher than the current temperature in the refrigerating chamber or the set relative humidity in the refrigerating chamber is lower than the current relative humidity in the refrigerating chamber, the heating wires are started to provide heat for the refrigerating chamber.
However, in the process of heating by the heating wire, the inner container attached with the heating wire is firstly heated, and then the heat is transferred to other parts in the refrigerating chamber, so that the temperature/relative humidity in the refrigerating chamber is not uniformly distributed and the fluctuation range is large due to the nonuniform heat distribution in the refrigerating chamber, and the food stored in the refrigerating chamber is not beneficial to fresh keeping.
In view of the above, it is desirable to provide an improved refrigerator and a control method thereof to solve the above problems.
Disclosure of Invention
An object of the present invention is to provide a refrigerator and a control method thereof capable of reducing fluctuations in temperature and relative humidity in a refrigerating compartment in the process of adjusting the temperature and relative humidity in the refrigerating compartment.
In order to achieve the purpose, the invention adopts the following technical scheme: a refrigerator comprises a box body, a refrigerating chamber arranged in the box body, a gear shifting device arranged on the box body and used for adjusting the gear of the refrigerating chamber, a refrigerating system arranged in the box body and used for providing cold for the refrigerating chamber, and a controller, wherein the refrigerating system comprises an evaporator, a compressor connected with the evaporator, an air duct and a fan which are used for conveying the cold generated by the evaporator into the refrigerating chamber, the compressor, the fan and the gear shifting device are all electrically connected with the controller, an air outlet communicated with the air duct is arranged in the refrigerating chamber, the refrigerator also comprises a first temperature sensor arranged in the refrigerating chamber and used for sensing the temperature in the refrigerating chamber, a heating element arranged at the position, close to the air outlet, of the air duct, and a second temperature sensor arranged at the air outlet and used for sensing the temperature of cold air flowing through the air outlet from the air duct, the heating elements are uniformly attached to the inner wall of the air duct; the first temperature sensor, the second temperature sensor and the heating element are all electrically connected with the controller; the controller adjusts the power of the heating element according to the difference between the temperature corresponding to the set gear and the temperature sensed by the second temperature sensor, so that the difference between the temperature corresponding to the gear and the temperature sensed by the second temperature sensor is within a set first temperature difference interval.
As a further improved technical solution of the present invention, the gear shifting device is a temperature gear shifting device for setting a temperature in the refrigerating compartment, the temperature gear shifting device has a plurality of temperature gears, and a temperature corresponding to each temperature gear is different from temperatures corresponding to other temperature gears.
As a further improved technical solution of the present invention, the gear shifting device is a dryness gear shifting device for setting a relative humidity in the refrigerating chamber, the dryness gear shifting device has a plurality of dryness gears, and a temperature corresponding to each dryness gear is different from temperatures corresponding to other dryness gears.
As a further improved technical solution of the present invention, the refrigerator further includes a first humidity sensor disposed in the refrigerating compartment for sensing a relative humidity in the refrigerating compartment, and a second humidity sensor disposed at the air outlet for sensing a relative humidity of the cold air flowing from the air duct through the air outlet; the first humidity sensor and the second humidity sensor are electrically connected with the controller.
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:
s1: setting the gear of the refrigerating chamber through the gear shifting device;
s2: judging whether the difference value between the temperature corresponding to the gear and the temperature sensed by the first temperature sensor is within a set second temperature difference value interval or not, if so, enabling the compressor, the fan and the heating element to be in a shutdown state; if not, the compressor and the fan are started, and the heating element is started at the initial power at the same time;
s3: after the compressor and the fan are started and the heating element is started at initial power, whether the difference value between the temperature corresponding to the gear and the temperature sensed by the second temperature sensor is within a set first temperature difference value interval is judged, and if yes, the heating element continuously operates at the initial power; if not, the controller adjusts the power of the heating element until the difference value between the temperature corresponding to the gear and the temperature sensed by the second temperature sensor is within a set first temperature difference value interval.
As a further improved technical solution of the present invention, the control method further includes the following steps after step S3:
s4: if the difference between the temperature corresponding to the gear and the temperature sensed by the second temperature sensor is within a set first temperature difference interval, determining whether the difference between the temperature corresponding to the gear and the temperature sensed by the first temperature sensor is within a set second temperature difference interval, if so, stopping the compressor and the fan, simultaneously closing the heating element, and returning to the step S2; if not, after the compressor, the fan and the heating element continuously operate until the difference between the temperature corresponding to the gear and the temperature sensed by the first temperature sensor is within a set second temperature difference interval, the compressor and the fan are stopped, and meanwhile, the heating element is turned off and the step S2 is returned to.
As a further improved technical solution of the present invention, the gear shifting device is a temperature gear shifting device for setting a temperature in the refrigerating compartment, the temperature gear shifting device has a plurality of temperature gears, and a temperature corresponding to each temperature gear is different from temperatures corresponding to other temperature gears.
As a further improved technical solution of the present invention, the gear shifting device is a dryness gear shifting device for setting a relative humidity in the refrigerating chamber, the dryness gear shifting device has a plurality of dryness gears, and a temperature corresponding to each dryness gear is different from temperatures corresponding to other dryness gears.
The invention has the beneficial effects that: according to the invention, the heating element is arranged at the position, close to the air outlet, of the air duct and is used for heating cold air flowing through the air duct so that the cold air entering the refrigerating chamber has a certain temperature/relative humidity; meanwhile, the controller adjusts the power of the heating element according to the difference value between the temperature corresponding to the set gear and the temperature sensed by the second temperature sensor, so that the difference value between the temperature corresponding to the gear and the temperature sensed by the second temperature sensor is equal to the set first temperature difference value or is positioned in the set first temperature difference value interval, and therefore the temperature/relative humidity of cold air entering the refrigerating chamber is positioned in a certain temperature/relative humidity interval, the temperature/relative humidity in the refrigerating chamber is uniform, and the fluctuation of the temperature/relative humidity in the refrigerating chamber in the process of adjusting the temperature/relative humidity in the refrigerating chamber is reduced.
Drawings
Fig. 1 is a flowchart of a control method in the first embodiment of the present invention.
Fig. 2 is a flowchart of a control method in the second embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the embodiments shown in the drawings, and reference is made to fig. 1 to 2, which are preferred embodiments of the present invention.
The invention provides a refrigerator which comprises a refrigerator body, a refrigerating chamber arranged in the refrigerator body, a gear shifting device arranged on the refrigerator body and used for adjusting the gear of the refrigerating chamber, a refrigerating system arranged in the refrigerator body and used for providing cold air for the refrigerating chamber, a first temperature sensor arranged in the refrigerating chamber and used for sensing the temperature in the refrigerating chamber, and a controller. The refrigerating system comprises an evaporator, a compressor connected with the evaporator, an air channel and a fan, wherein the air channel and the fan are used for conveying cold energy generated by the evaporator to a refrigerating chamber, and the compressor, the fan, the gear shifting device and the first temperature sensor are electrically connected with the controller.
An air outlet communicated with the air duct is arranged in the refrigerating chamber, so that cold air flowing through the air duct enters the refrigerating chamber from the air outlet to refrigerate or heat the refrigerating chamber.
Furthermore, the refrigerator also comprises a heating element arranged at the position, close to the air outlet, of the air duct and a second temperature sensor arranged at the air outlet and used for sensing the temperature of cold air flowing through the air outlet from the air duct. The heating element and the second temperature sensor are both electrically connected with the controller.
The controller adjusts the power of the heating element according to the difference value between the temperature corresponding to the set gear and the temperature of the cold air sensed by the second temperature sensor to enable the difference value between the temperature corresponding to the gear and the temperature of the cold air sensed by the second temperature sensor to be equal to the set first temperature difference value or be located in the set first temperature difference value interval, so that the temperature/relative humidity of the cold air entering the refrigerating chamber is located in a certain temperature/relative humidity interval, the temperature/relative humidity in the refrigerating chamber is uniform, and the fluctuation of the temperature/relative humidity in the refrigerating chamber in the process of adjusting the temperature/relative humidity in the refrigerating chamber is reduced.
Specifically, the heating element is uniformly attached to the inner wall of the air duct, so that the temperature of the cold air after heat exchange with the heating element is relatively uniform, that is, the temperature of the cold air entering the refrigerating chamber is relatively uniform, and fluctuation of the temperature/relative humidity in the refrigerating chamber in the process of adjusting the temperature/relative humidity in the refrigerating chamber is reduced.
Referring to fig. 1, in a first embodiment of the present invention, the gear shifting device is a temperature gear shifting device for setting a temperature in the cooling compartment, and at this time, the gear refers to a temperature gear. The temperature gear shifting device is provided with a plurality of temperature gears, and the temperature corresponding to each temperature gear is different from the temperatures corresponding to other temperature gears.
On the one hand, the controller adjusts according to the difference value of the temperature that corresponds of the temperature gear that sets for with the temperature of the cold wind that second temperature sensor sensing arrived the power messenger of heating element the temperature that the temperature gear corresponds with the difference value of the temperature of the cold wind that second temperature sensor sensing arrived equals the first temperature difference value that sets for or is located the first temperature difference value interval that sets for, thereby gets into the temperature of the indoor cold wind of refrigeration room is located certain temperature interval to make the indoor temperature ratio of refrigeration room more even, reduce the fluctuation of the indoor temperature of in-process refrigeration room of adjusting the indoor temperature of refrigeration room, be favorable to the fresh-keeping of the indoor food of refrigeration room.
On the other hand, the controller controls the starting and stopping of the heating element according to the temperature corresponding to the temperature gear and the temperature sensed by the first temperature sensor.
After the temperature gear is adjusted, and when the difference between the temperature corresponding to the temperature gear and the temperature sensed by the first temperature sensor is not equal to a set second temperature difference or is within a set second temperature difference interval, controlling the compressor and the fan to start, and starting the heating element at initial power; when the difference value between the temperature corresponding to the temperature gear and the temperature sensed by the first temperature sensor is equal to a set second temperature difference value or is within a set second temperature difference value interval, namely the temperature in the refrigerating chamber reaches a stable state, the compressor and the fan are controlled to stop, and meanwhile, the heating element is closed.
Specifically, the first temperature difference and the second temperature difference are a predetermined value, and the first temperature difference interval and the second temperature difference interval are a set of predetermined values.
Referring to fig. 2, in a second embodiment of the present invention, the shift device is a dryness shift device for setting the relative humidity in the cooling compartment, and in this case, the shift is a dryness shift. The dryness shift device is provided with a plurality of drying gears, the temperature corresponding to each drying gear is different from the temperatures corresponding to other drying gears, the relative humidity corresponding to each drying gear is different from the relative humidity corresponding to other drying gears, namely the relative humidity corresponds to the temperatures one by one, therefore, the dryness shift device adjusts the relative humidity in the refrigerating chamber by respectively comparing the temperature of the refrigerating chamber sensed by the first temperature sensor and the temperature of cold air entering the refrigerating chamber sensed by the second sensor with the set temperature corresponding to the drying gears. I.e. converting a change in relative humidity into a change in temperature.
On the one hand, the controller adjusts according to the difference value of the temperature that the corresponding temperature of the dry gear of setting for with the temperature of the cold wind that second temperature sensor sensing arrived heating element's power makes the temperature that the dry gear corresponds with the difference value of the temperature of the cold wind that second temperature sensor sensing arrived equals the first temperature difference value of setting for or is located the first temperature difference value interval of setting for, thereby gets into the relative humidity of the indoor cold wind of refrigeration room is located certain relative humidity interval to make the indoor relative humidity of refrigeration room more even, reduce the fluctuation of the indoor relative humidity of in-process refrigeration room at the indoor relative humidity of regulation refrigeration room, be favorable to the fresh-keeping of the indoor food of refrigeration room.
On the other hand, the controller controls the starting and stopping of the heating element according to the temperature corresponding to the drying gear and the temperature sensed by the first temperature sensor.
After the drying gear is adjusted, and when the difference value between the temperature corresponding to the drying gear and the temperature sensed by the first temperature sensor is not equal to a set second temperature difference value or is within a set second temperature difference value interval, controlling the compressor and the fan to start, and starting the heating element at initial power; when the difference value between the temperature corresponding to the drying gear and the temperature sensed by the first temperature sensor is equal to a set second temperature difference value or is within a set second temperature difference value interval, namely when the relative humidity in the refrigerating chamber reaches a stable state, the compressor and the fan are controlled to stop, and meanwhile, the heating element is closed.
Furthermore, the refrigerator also comprises a first humidity sensor which is arranged in the refrigerating chamber and used for sensing the relative humidity in the refrigerating chamber, and a second humidity sensor which is arranged at the air outlet and used for sensing the relative humidity of cold air flowing through the air outlet from the air duct; the first humidity sensor and the second humidity sensor are electrically connected with the controller, so that a user can know the relative humidity of the refrigerating chamber and the relative humidity of the air outlet in real time.
The second embodiment of the present invention is the same as the first embodiment except for the above differences, and the details are not repeated herein.
In a first embodiment of the present invention, when the gearshift device is a temperature gearshift device for setting a temperature in the cooling compartment, the control method includes:
s1: setting a temperature gear of the refrigerating compartment through the temperature gear shifting device;
s2: judging whether the difference value between the temperature corresponding to the temperature gear and the temperature sensed by the first temperature sensor is equal to a set second temperature difference value or is within a set second temperature difference value interval, if so, enabling the compressor, the fan and the heating element to be in a shutdown state; if not, the compressor and the fan are started, and the heating element is started at the initial power.
S3: after the compressor and the fan are started and the heating element is started at the initial power, whether the difference value between the temperature corresponding to the temperature gear and the temperature sensed by the second temperature sensor is equal to a set first temperature difference value or is within a set first temperature difference value interval is judged, and if yes, the heating element continuously operates at the initial power; if not, the controller adjusts the power of the heating element until the difference between the temperature corresponding to the temperature gear and the temperature sensed by the second temperature sensor is equal to a set first temperature difference or within a set first temperature difference interval.
S4: if the difference between the temperature corresponding to the temperature gear and the temperature sensed by the second temperature sensor is equal to a set first temperature difference or is within a set first temperature difference interval, determining whether the difference between the temperature corresponding to the temperature gear and the temperature sensed by the first temperature sensor is equal to a set second temperature difference or is within a set second temperature difference interval, if so, stopping the compressor and the fan, simultaneously closing the heating element, and returning to the step S2; if not, after the compressor, the fan and the heating element continuously operate until the difference between the temperature corresponding to the temperature gear and the temperature sensed by the first temperature sensor is equal to a set second temperature difference or is within a set second temperature difference interval, the compressor and the fan are stopped, and meanwhile, the heating element is turned off and the step S2 is returned.
In a second embodiment of the present invention, when the gearshift device is a dryness gearshift device for setting a relative humidity in the cooling compartment, the control method includes the steps of:
s1': setting a drying gear of the refrigerating chamber through the dryness gear shifting device;
s2': judging whether the difference value between the temperature corresponding to the drying gear and the temperature sensed by the first temperature sensor is equal to a set second temperature difference value or is within a set second temperature difference value interval, if so, enabling the compressor, the fan and the heating element to be in a shutdown state; if not, the compressor and the fan are started, and the heating element is started at the initial power.
S3': after the compressor and the fan are started and the heating element is started at the initial power, whether the difference value between the temperature corresponding to the drying gear and the temperature sensed by the second temperature sensor is equal to a set first temperature difference value or is within a set first temperature difference value interval is judged, and if yes, the heating element continuously operates at the initial power; if not, the controller adjusts the power of the heating element until the difference between the temperature corresponding to the drying gear and the temperature sensed by the second temperature sensor is equal to a set first temperature difference or within a set first temperature difference interval.
S4': if the difference between the temperature corresponding to the drying gear and the temperature sensed by the second temperature sensor is equal to a set first temperature difference or is within a set first temperature difference interval, determining whether the difference between the temperature corresponding to the drying gear and the temperature sensed by the first temperature sensor is equal to a set second temperature difference or is within a set second temperature difference interval, if so, stopping the compressor and the fan, simultaneously closing the heating element, and returning to the step S2'; if not, after the difference between the temperature corresponding to the drying gear and the temperature sensed by the first temperature sensor is equal to or within a set second temperature difference value, the compressor and the fan are stopped, and the heating element is turned off and returns to the step S2'.
In summary, the heating element is disposed at a position of the air duct close to the air outlet, and the heating element is used for heating the cold air flowing through the air duct so that the cold air entering the refrigerating compartment has a certain temperature/relative humidity; meanwhile, the controller adjusts the power of the heating element according to the difference value between the temperature corresponding to the set gear and the temperature sensed by the second temperature sensor to enable the difference value between the temperature corresponding to the gear and the temperature sensed by the second temperature sensor to be equal to the set first temperature difference value or be located in the set first temperature difference value interval, so that the temperature/relative humidity of cold air entering the refrigerating chamber is located in a certain temperature/relative humidity interval, the temperature/relative humidity in the refrigerating chamber is uniform, the fluctuation of the temperature/relative humidity in the refrigerating chamber in the process of adjusting the temperature/relative humidity in the refrigerating chamber is reduced, and the freshness preservation of food in the refrigerating chamber is facilitated.
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 (6)

1. The utility model provides a refrigerator, includes the box, locates refrigeration room in the box, locate be used for adjusting on the box the device of shifting gears of refrigeration room, locate be used for in the box for the refrigeration room provides refrigerating system and the controller of cold volume, refrigerating system include the evaporimeter, with the compressor that the evaporimeter links to each other, be used for with cold volume that the evaporimeter produced carries to indoor wind channel and the fan in refrigeration room, compressor, fan, the device of shifting all with controller electric connection, the indoor air outlet that is equipped with the wind channel is linked together between refrigeration, its characterized in that: the refrigerator also comprises a first temperature sensor which is arranged in the refrigerating chamber and used for sensing the temperature in the refrigerating chamber, a heating element which is arranged at the position of the air duct close to the air outlet, and a second temperature sensor which is arranged at the air outlet and used for sensing the temperature of cold air flowing through the air outlet from the air duct, wherein the heating element is uniformly attached to the inner wall of the air duct; the first temperature sensor, the second temperature sensor and the heating element are all electrically connected with the controller;
after the controller controls the compressor and the fan to be started and the heating element to be started at the same time with initial power, the power of the heating element is adjusted according to the difference value between the temperature corresponding to the set gear and the temperature sensed by the second temperature sensor, so that the difference value between the temperature corresponding to the gear and the temperature sensed by the second temperature sensor is within a set first temperature difference interval;
the temperature gear shifting device is used for setting the temperature in the refrigerating chamber and is provided with a plurality of temperature gears, and the temperature corresponding to each temperature gear is different from the temperatures corresponding to other temperature gears.
2. The refrigerator of claim 1, wherein: the gear shifting device is a dryness gear shifting device used for setting relative humidity in the refrigerating chamber, the dryness gear shifting device is provided with a plurality of drying gears, and the temperature corresponding to each drying gear is different from the temperatures corresponding to other drying gears.
3. The refrigerator of claim 1, wherein: the refrigerator also comprises a first humidity sensor which is arranged in the refrigerating chamber and used for sensing the relative humidity in the refrigerating chamber, and a second humidity sensor which is arranged at the air outlet and used for sensing the relative humidity of cold air flowing through the air outlet from the air duct; the first humidity sensor and the second humidity sensor are electrically connected with the controller.
4. A control method of controlling the refrigerator of claim 1, characterized in that: the control method comprises the following steps:
s1: setting gears of the refrigerating chamber through the gear shifting device, wherein the gear shifting device is a temperature gear shifting device used for setting the temperature in the refrigerating chamber, the temperature gear shifting device is provided with a plurality of temperature gears, and the temperature corresponding to each temperature gear is different from the temperatures corresponding to other temperature gears;
s2: judging whether the difference value between the temperature corresponding to the gear and the temperature sensed by the first temperature sensor is within a set second temperature difference value interval or not, if so, enabling the compressor, the fan and the heating element to be in a shutdown state; if not, the compressor and the fan are started, and the heating element is started at the initial power at the same time;
s3: after the compressor and the fan are started and the heating element is started at initial power, whether the difference value between the temperature corresponding to the gear and the temperature sensed by the second temperature sensor is within a set first temperature difference value interval is judged, and if yes, the heating element continuously operates at the initial power; if not, the controller adjusts the power of the heating element until the difference value between the temperature corresponding to the gear and the temperature sensed by the second temperature sensor is within a set first temperature difference value interval;
s4: if the difference between the temperature corresponding to the gear and the temperature sensed by the second temperature sensor is within a set first temperature difference interval, determining whether the difference between the temperature corresponding to the gear and the temperature sensed by the first temperature sensor is within a set second temperature difference interval, if so, stopping the compressor and the fan, simultaneously closing the heating element, and returning to the step S2; if not, after the compressor, the fan and the heating element continuously operate until the difference between the temperature corresponding to the gear and the temperature sensed by the first temperature sensor is within a set second temperature difference interval, the compressor and the fan are stopped, and meanwhile, the heating element is turned off and the step S2 is returned to.
5. The control method according to claim 4, characterized in that: the temperature gear shifting device is used for setting the temperature in the refrigerating chamber and is provided with a plurality of temperature gears, and the temperature corresponding to each temperature gear is different from the temperatures corresponding to other temperature gears.
6. The control method according to claim 4, characterized in that: the gear shifting device is a dryness gear shifting device used for setting relative humidity in the refrigerating chamber, the dryness gear shifting device is provided with a plurality of drying gears, and the temperature corresponding to each drying gear is different from the temperatures corresponding to other drying gears.
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CN110215176B (en) * 2019-06-19 2021-03-23 佛山市百斯特电器科技有限公司 Method for controlling fan and dish-washing machine
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