CN115014040B - Refrigerator control method and refrigerator - Google Patents

Refrigerator control method and refrigerator Download PDF

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Publication number
CN115014040B
CN115014040B CN202210684282.6A CN202210684282A CN115014040B CN 115014040 B CN115014040 B CN 115014040B CN 202210684282 A CN202210684282 A CN 202210684282A CN 115014040 B CN115014040 B CN 115014040B
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China
Prior art keywords
refrigerating
temperature
chamber
threshold value
fan
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CN202210684282.6A
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CN115014040A (en
Inventor
孙川川
李平
夏俊伟
黄德川
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TCL Home Appliances Hefei Co Ltd
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TCL Home Appliances Hefei Co Ltd
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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
    • 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
    • F25D2600/00—Control issues
    • F25D2600/02—Timing
    • 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
    • F25D2600/06—Controlling according to a predetermined profile
    • 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

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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 embodiment of the application provides a control method of a refrigerator and the refrigerator. The control method of the refrigerator comprises a freezing chamber and a refrigerating chamber, wherein a refrigerating return air inlet is arranged between the refrigerating chamber and the freezing chamber, and a refrigerating fan is arranged in the freezing chamber, and the control method comprises the following steps: acquiring a refrigerating state of the freezing chamber and a refrigerating state of the refrigerating chamber; if the freezing chamber and the refrigerating chamber are in a non-refrigeration state and the refrigerating fan is in a stop state, acquiring the stop time of the refrigerating fan; if the stopping time exceeds the threshold value, the opening of the refrigerating fan is controlled, and when the freezing chamber and the refrigerating chamber have no refrigerating request, the embodiment of the application can make the refrigerating air return port become negative pressure by forcedly starting the refrigerating fan, so that cold air in the refrigerating chamber can not diffuse to the refrigerating chamber, food at the refrigerating air return port can not be frozen, and meanwhile, the temperature of the refrigerating chamber can be more uniform by running the fan.

Description

Refrigerator control method and refrigerator
Technical Field
The application relates to the field of household appliances, in particular to a control method of a refrigerator and the refrigerator.
Background
With the continuous development of refrigerator technology, side-by-side refrigerators are increasingly popular in the market, and in order to reduce the cost, the side-by-side refrigerators generally have only one evaporator and one fan and are all placed in a freezing chamber. The temperature control of the refrigerating chamber depends on the air door to control the air supply, and the refrigerating air return opening is generally positioned at the bottommost part of the refrigerating chamber and communicated with the freezing chamber.
However, since the return air inlet of the refrigerating chamber is communicated with the freezing chamber, cold of the freezing chamber may permeate into the refrigerating region through the return air inlet, resulting in freezing of food placed at the return air inlet.
Disclosure of Invention
The embodiment of the application provides a control method of a refrigerator and the refrigerator, which can improve the situation that food at an existing return air inlet is frozen.
The embodiment of the application provides a control method of a refrigerator, the refrigerator comprises a freezing chamber and a refrigerating chamber, a refrigerating return air inlet is arranged between the refrigerating chamber and the freezing chamber, a freezing fan is arranged in the freezing chamber, and the control method comprises the following steps:
Acquiring a refrigerating state of the freezing chamber and a refrigerating state of the refrigerating chamber;
If the freezing chamber and the refrigerating chamber are in a non-refrigeration state and the refrigerating fan is in a stop state, acquiring the stop time of the refrigerating fan;
and if the stopping time exceeds the threshold value, controlling the opening of the refrigerating fan.
Optionally, after the obtaining the stop time of the cooling fan, the control method further includes:
Acquiring the current ambient temperature;
If the ambient temperature is in a first preset range, determining the threshold value as a first threshold value;
and if the ambient temperature is in a second preset range, determining the threshold value as a second threshold value, wherein the maximum value of the first preset range is smaller than the minimum value of the second preset range, and the first threshold value is smaller than the second threshold value.
Optionally, if the stopping time exceeds the threshold, controlling the opening of the refrigerating fan includes:
if the stopping time exceeds a second threshold value, controlling the refrigerating fan to run at a first rotating speed for a first time period;
After the refrigerating fan is operated for a first time period, controlling the refrigerating fan to operate at a second rotating speed for a second time period; wherein the second time period is longer than the first time period, and the first rotation speed is greater than the second rotation speed.
Optionally, after the stopping time of the cooling fan is obtained, the control method further includes:
acquiring the temperature difference between the current temperature of the freezing chamber and the temperature of the refrigerating chamber;
if the temperature difference is within a first preset temperature difference range, determining the threshold value as a third threshold value;
And if the temperature difference is in a second preset temperature difference range, determining the threshold value as a fourth threshold value, wherein the maximum value of the first preset temperature difference range is smaller than the minimum value of the second preset temperature difference range, and the third threshold value is larger than the fourth threshold value.
Optionally, after the stopping time of the cooling fan is obtained, the control method further includes:
acquiring the temperature difference between the current temperature of the freezing chamber and the temperature of the refrigerating chamber, and acquiring the current ambient temperature;
if the ambient temperature is in a first preset range, and the temperature difference is in the first preset temperature difference range, determining the threshold value as a fifth threshold value;
If the ambient temperature is in the first preset range and the temperature difference is in the second preset temperature difference range, determining the threshold value as a sixth threshold value;
if the ambient temperature is in the second preset range and the temperature difference is in the first preset temperature difference range, determining the threshold value as a seventh threshold value;
if the ambient temperature is in a second preset range, and the temperature difference is in the second preset temperature difference range, determining the threshold value as an eighth threshold value; the maximum value of the first preset range is smaller than the minimum value of the second preset range, the maximum value of the first preset temperature difference range is smaller than the minimum value of the second preset temperature difference range, and the fifth threshold value, the sixth threshold value, the seventh threshold value and the eighth threshold value are all unequal.
Optionally, if the stopping time exceeds the threshold, controlling the opening of the refrigerating fan includes:
if the stopping time is determined to exceed the threshold value, the current ambient temperature is acquired,
If the ambient temperature is less than the preset temperature, controlling the refrigerating fan to be started at a third rotating speed;
If the ambient temperature is higher than the preset temperature, controlling the refrigeration fan to be started at a fourth rotating speed; the fourth rotational speed is greater than the third rotational speed.
Optionally, after the acquiring the refrigeration state of the freezing chamber and the refrigeration state of the refrigerating chamber, the control method further includes:
If the freezing chamber and the refrigerating chamber are both in a state of sending refrigeration demands, determining that the freezing fan is in a stop state, and acquiring the current environment temperature;
if the ambient temperature is determined to be within a third preset range, controlling the refrigerating fan to operate at a third rotating speed;
And if the ambient temperature is determined to be in a fourth preset range, controlling the refrigerating fan to run at a fourth rotating speed, wherein the maximum value of the third preset range is smaller than the minimum value of the fourth preset range, and the fourth rotating speed is larger than the third rotating speed.
Optionally, the control method further includes:
Acquiring the temperature of the refrigerating chamber;
If the temperature of the refrigerating chamber is less than or equal to the preset shutdown temperature of the refrigerating chamber, acquiring the temperature of the freezing chamber;
And if the temperature of the freezing chamber is smaller than or equal to the preset shutdown temperature of the freezing chamber, closing the freezing fan.
Optionally, the refrigerator further includes a damper and a compressor, the compressor is disposed in the freezing chamber, the damper is disposed at a refrigeration air supply port between the refrigerating chamber and the freezing chamber, and the control method further includes:
If the refrigerating chamber is determined to have no refrigerating requirement, controlling the compressor to be closed and controlling the air door to be opened;
if the refrigerating chamber is determined to have the refrigerating requirement, and the refrigerating chamber is not determined to have the refrigerating requirement, controlling the compressor to be started and controlling the air door to be closed;
if the refrigerating chamber is determined to have the refrigerating requirement, the compressor is controlled to be started, and the air door is controlled to be opened;
and if the freezing chamber is determined to have no refrigeration requirement, controlling the compressor to be closed and controlling the air door to be closed.
The embodiment of the application also provides a refrigerator, which comprises:
The refrigerating chamber is provided with a refrigerating fan and an evaporator;
A refrigerating air return port and a refrigerating air supply port are arranged between the refrigerating chamber and the freezing chamber, and an air door is arranged at the refrigerating air supply port;
a temperature sensor for detecting an ambient temperature;
A controller electrically connected to the chilled fan, the evaporator, the damper, and the temperature sensor, the controller configured to perform the control method of any of the above.
The application has the beneficial effects that: according to the control method of the refrigerator, the running state of the refrigerating fan is controlled according to the refrigerating state of the freezing chamber, the refrigerating state of the refrigerating chamber and the stopping time of the refrigerating fan, when the freezing chamber and the refrigerating chamber are in the non-refrigerating state and the refrigerating fan is in the stopping state, the stopping time of the refrigerating fan is obtained, and when the stopping time exceeds a first threshold value, the refrigerating fan is controlled to be started. When the freezing chamber and the refrigerating chamber have no refrigeration request, the embodiment of the application can change the cold air at the refrigerating air return port of the refrigerating chamber into negative pressure by forcibly starting the freezing blower, and at the moment, the cold air can be blown away by the freezing blower, so that the cold air in the freezing chamber can not diffuse to the refrigerating chamber, the food at the refrigerating air return port can not be frozen, and meanwhile, the temperature of the refrigerating chamber can be more uniform by the running of the blower. In addition, by turning on the freezing blower after the stop time exceeds the first threshold, the power consumption can be reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the application and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
For a more complete understanding of the present application and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts throughout the following description.
Fig. 1 is a flow chart of a control method of a refrigerator according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a first flow chart for determining a threshold in the control method shown in fig. 1.
Fig. 3 is a schematic diagram of a second flow chart for determining a threshold in the control method shown in fig. 1.
Fig. 4 is a schematic diagram of a third flow chart for determining a threshold in the control method shown in fig. 1.
Fig. 5 is a schematic flow chart of controlling the operation of the cooling fan in the control method shown in fig. 1.
Fig. 6 is a schematic flow chart of controlling the stop of the refrigerating fan in the control method shown in fig. 1.
Fig. 7 is a schematic structural view of a refrigerator according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The existing side-by-side combination refrigerator is provided with only one evaporator and one fan, and the evaporator and the fan are arranged in the freezing chamber. The temperature control of the refrigerating chamber depends on the air door to control the air supply. The refrigerating air return port is generally positioned at the bottommost part of the refrigerating chamber and communicated with the freezing chamber. When the refrigerating chamber and the freezing chamber are not refrigerated, the compressor is stopped, the fan is stopped, and the air door is closed. At this time, no forced air circulates in the refrigerator compartment, and natural convection heat exchange is performed by the air. However, the cold air in the freezing chamber can flow back to the refrigerating chamber due to the fact that the refrigerating chamber is communicated with the freezing chamber through the air return opening, and the objects in the refrigerating chamber are frozen.
Accordingly, in order to solve the above problems, the present application provides a metal oxide thin film transistor, a display panel and a method of manufacturing the same. The application will be further described with reference to the drawings and embodiments.
Referring to fig. 1, fig. 1 is a flow chart illustrating a control method of a refrigerator according to an embodiment of the application. The embodiment of the application provides a control method of a refrigerator, which is applied to the refrigerator, the refrigerator comprises a freezing chamber and a refrigerating chamber, a refrigerating return air inlet is arranged between the refrigerating chamber and the freezing chamber, a freezing fan and an evaporator are arranged in the freezing chamber, and the control method comprises the following steps:
101. the refrigerating state of the freezing chamber and the refrigerating state of the refrigerating chamber are obtained.
The refrigerating state of the freezing chamber and the refrigerating state of the refrigerating chamber are detected. The refrigerating states of the refrigerating chamber comprise states of being in a refrigerating state, not being in a refrigerating state, sending a refrigerating demand state, not being in a sending refrigerating demand state and the like, and the refrigerating states of the refrigerating chamber comprise states of being in a refrigerating state, not being in a refrigerating state, sending a refrigerating demand state, not being in a sending refrigerating demand state and the like.
It will be appreciated that the refrigeration condition may be determined based on the conditions of the damper, the freezer fan and the compressor. Illustratively, when the damper, the freezer fan, and the compressor are all in the off state, the freezer compartment and the refrigerator compartment are both in the uncooled state. When the air door, the refrigerating fan and the compressor are all in the operation state, the freezing chamber and the refrigerating chamber are both in the refrigeration state. When the compressor is in a stop state, the refrigerating fan is in operation, and the air door is opened, the freezing chamber is in an uncooled state, and the refrigerating chamber is in a refrigerated state. When the compressor is in operation, the refrigerating fan is in operation, the air door is closed, the freezing chamber is in a refrigerating state, and the refrigerating chamber is in a non-refrigerating state.
102. And if the freezing chamber and the refrigerating chamber are in a non-refrigeration state and the freezing fan is in a stop state, acquiring the stop time of the freezing fan.
When the refrigerating chamber and the refrigerating chamber are determined to be in a refrigerating state, the current air door, the refrigerating fan and the compressor are in a stopping state, and the stopping time of the refrigerating fan is obtained.
Wherein, the stop time of the refrigerating fan can be obtained by using a timer.
The refrigerator further includes a defrosting heater, and before the stop time of the refrigerating fan is obtained, the control method further includes: judging whether the refrigerator meets defrosting conditions or not; if the temperature of the air is higher than the preset temperature, controlling the refrigerating fan not to operate and controlling the defrosting heater to be in a working state; if not, the stop time of the refrigerating fan is obtained. That is, by judging whether the refrigerator is in defrosting in advance, the situation that the refrigerating fan is forcibly started in defrosting can be avoided, so that the control of the refrigerating fan can be more reasonable.
103. And if the stopping time exceeds the threshold value, controlling the opening of the refrigerating fan.
And if the stopping time exceeds the threshold value, controlling the refrigerating fan to be started and operating at a first rotating speed. Wherein in some embodiments, if the stop time is within 10 minutes, the freezer fan is controlled to operate at a rotational speed of 1200 r.
It should be noted that, the threshold may be set according to actual application conditions or historical data, or may be updated according to an ambient temperature, or may be modified by a client.
As shown in fig. 2 to 4, fig. 2 is a schematic diagram of a first flow chart for determining a threshold in the control method shown in fig. 1. Fig. 3 is a schematic diagram of a second flow chart for determining a threshold in the control method shown in fig. 1. Fig. 4 is a schematic diagram of a third flow chart for determining a threshold in the control method shown in fig. 1.
In some embodiments, as shown in fig. 2, after the stop time of the freezing blower is obtained, the control method further includes the steps of:
201. the current ambient temperature is obtained.
202. And if the ambient temperature is in the first preset range, determining the threshold value as a first threshold value.
203. And if the ambient temperature is in the second preset range, determining the threshold value as a second threshold value, wherein the maximum value of the first preset range is smaller than the minimum value of the second preset range, and the first threshold value is larger than the second threshold value.
The threshold value is determined through the current ambient temperature, so that the stop time of the refrigerating fan is determined, namely, the shorter the ambient temperature is, the shorter the stop time of the refrigerating fan is, the serious icing condition at low temperature is avoided, and the icing condition of the refrigerating return air inlet can be more accurately prevented.
In some embodiments, as shown in fig. 3, after the stop time of the freezing blower is obtained, the control method further includes the steps of:
301. a temperature difference between the current freezing chamber temperature and the refrigerating chamber temperature is obtained.
302. And if the temperature difference is within the first preset temperature difference range, determining the threshold value as a third threshold value.
303. If the temperature difference is within the second preset temperature difference range, determining the threshold value as a fourth threshold value, wherein the maximum value of the first preset temperature difference range is smaller than the minimum value of the second preset temperature difference range, and the third threshold value is larger than the fourth threshold value.
The stop time of the refrigerating fan is determined through the temperature difference between the current temperature of the freezing chamber and the temperature of the refrigerating chamber, namely, when the temperature difference is larger, the stop time of the refrigerating fan is shorter, so that the more cold air of the freezing chamber enters the freezing chamber when the temperature difference is overlarge, the more serious icing condition is caused, and the more accurate icing condition at the refrigerating air return opening is prevented.
In some embodiments, as shown in fig. 4, after the stop time of the freezing blower is obtained, the control method further includes the steps of:
401. A temperature difference between the current freezing chamber temperature and the refrigerating chamber temperature is obtained, and a current ambient temperature is obtained.
402. If the ambient temperature is in the first preset range and the temperature difference is in the first preset temperature difference range, determining the threshold value as a fifth threshold value.
403. If the ambient temperature is in the first preset range and the temperature difference is in the second preset temperature difference range, determining the threshold value as a sixth threshold value.
404. If the ambient temperature is in the second preset range and the temperature difference is in the first preset temperature difference range, determining the threshold value as a seventh threshold value.
405. If the ambient temperature is in the second preset range and the temperature difference is in the second preset temperature difference range, determining the threshold value as an eighth threshold value; the maximum value of the first preset range is smaller than the minimum value of the second preset range, the maximum value of the first preset temperature difference range is smaller than the minimum value of the second preset temperature difference range, and the fifth threshold value, the sixth threshold value, the seventh threshold value and the eighth threshold value are all unequal.
The stop time of the refrigerating fan is determined by combining the temperature difference between the temperature of the current freezing chamber and the temperature of the refrigerating chamber and the current environmental temperature, so that the stop time of the refrigerating fan is more accurate, and further, the freezing at the refrigerating air return opening can be prevented from being frozen, and the energy consumption can be reduced.
In other embodiments, the threshold may be adaptively adjusted according to different temperature changes in the year and different temperature changes in the day, so that the threshold may be more consistent with the current application.
It can be understood that the rotating speed of the refrigerating fan can be specifically set and adjusted according to the model of the actual fan, the ambient temperature and the stop time of the refrigerating fan, and the refrigerating fan is not repeated herein, and only needs to meet the condition of preventing the refrigerating return air inlet from icing.
In other embodiments, if the stopping time exceeds the second threshold, controlling the refrigeration fan to operate at the first rotational speed for a first period of time; after the refrigerating fan is operated for a first time period, controlling the refrigerating fan to be operated for a second time period at a first rotating speed; wherein the second time period is longer than the first time period. That is, when the residence time of both the freezing blower and the compressor is too long, in order to make the cold air of the freezing chamber form negative pressure more quickly, the freezing blower can be started to operate at a higher rotational speed within the second time range so as to prevent the cold air from flowing into the refrigerating chamber from the freezing chamber. After the refrigerating fan runs for the first time, the refrigerating fan is changed into lower-speed running, so that the cold air can be prevented from flowing into the refrigerating chamber, and energy conservation and consumption reduction can be realized.
According to the control method of the refrigerator, the running state of the refrigerating fan is controlled according to the refrigerating state of the freezing chamber, the refrigerating state of the refrigerating chamber and the stopping time of the refrigerating fan, when the freezing chamber and the refrigerating chamber are in the non-refrigerating state, the stopping time of the refrigerating fan is obtained, and when the stopping time reaches the threshold value, the starting of the refrigerating fan is controlled. According to the embodiment of the application, when the freezing chamber and the refrigerating chamber have no refrigerating request, the refrigerating fan is forcibly started, so that the negative pressure is changed at the refrigerating air return port, the cold air in the freezing chamber can not diffuse to the refrigerating chamber, the food at the refrigerating air return port can not be frozen, and meanwhile, the temperature of the refrigerating chamber can be more uniform due to the operation of the fan.
With continued reference to fig. 5, fig. 5 is a schematic flow chart of controlling the operation of the cooling fan in the control method shown in fig. 1. If the stopping time exceeds the threshold value, the control of the opening of the refrigerating fan comprises the following specific procedures:
501. And if the stopping time exceeds the threshold value, acquiring the current environment temperature.
And if the stopping time exceeds the threshold value, acquiring the ambient temperature of the refrigerator through a temperature sensor.
502. And if the ambient temperature is less than the preset temperature, controlling the refrigerating fan to be started at a third rotating speed.
It will be appreciated that the preset temperature may be set according to actual application conditions or historical data, and in some embodiments, the temperature range set by the refrigerating chamber is 2 ℃ to 8 ℃, and then the preset temperature is set to be less than 8 ℃, because when the ambient temperature is higher, the refrigerating chamber or the freezing chamber can start refrigerating and then the freezing fan can be started, so that when the preset temperature is set to be less than the maximum temperature range set by the refrigerating chamber, the preset temperature can be better connected with temperature control, the situation that the ambient temperature is too low, and freezing occurs in the refrigerating return air port when the refrigerating chamber and the freezing chamber are not refrigerated is avoided, namely, when the refrigerating chamber and the freezing chamber are not refrigerated, the fan is forcedly started as long as the ambient temperature is less than the maximum temperature range set by the refrigerating chamber, so that the freezing condition at the refrigerating return air port is prevented.
503. If the ambient temperature is higher than the preset temperature, controlling the refrigeration fan to be started at a fourth rotating speed; the fourth rotational speed is greater than the third rotational speed.
When the refrigerating fan is started, if the temperature is higher than the preset temperature, the refrigerating fan is required to operate at a higher rotating speed.
In some embodiments, controlling the operating state of the freezing blower according to the current ambient temperature, the cooling state of the freezing chamber, and the cooling state of the refrigerating chamber further comprises the steps of:
and if the freezing chamber and the refrigerating chamber are in the state of sending the refrigerating demand, determining that the refrigerating fan is in a stop state, and acquiring the current environment temperature.
And if the ambient temperature is determined to be within a third preset range according to the temperature sensor and the refrigerating requirements of the freezing chamber and the refrigerating chamber are determined, controlling the refrigerating fan to operate at a third rotating speed.
And if the ambient temperature is determined to be in the fourth preset range, controlling the refrigerating fan to operate at a fourth rotating speed, wherein the maximum value of the third preset range is smaller than the minimum value of the fourth preset range, and the fourth rotating speed is larger than the third rotating speed.
For example, when the ambient temperature is greater than or equal to 8 ℃ and less than 14 ℃, the rotation speed of the freezing blower is 1350r, when the ambient temperature is greater than or equal to 14 ℃ and less than 30 ℃, the rotation speed of the freezing blower is 1530r, when the ambient temperature is greater than or equal to 30 ℃ and less than 35 ℃, the rotation speed of the freezing blower is 1740r, and when the ambient temperature is greater than or equal to 35 ℃, the rotation speed of the freezing blower is 1800r.
The third preset range and the fourth preset range can be specifically set according to actual conditions, and the third rotation speed and the fourth rotation speed can also be set according to actual conditions, so that the method is not particularly limited, and the method only needs to meet the requirement that the higher the ambient temperature is, the larger the rotation speed is.
Wherein, confirm that freezing room and cold-stored room all have refrigeration demand mainly includes following step: acquiring the temperature of the refrigerating chamber; if the temperature of the refrigerating chamber is greater than or equal to the preset starting temperature of the refrigerating chamber, determining that the refrigerating chamber has a refrigerating requirement. Acquiring the temperature of a freezing chamber; if the temperature of the freezing chamber is greater than or equal to the preset starting temperature of the freezing chamber, determining that the freezing chamber has a refrigerating requirement.
With continued reference to fig. 6, fig. 6 is a schematic flow chart of controlling the cooling fan to stop in the control method shown in fig. 1. After determining that the freezing chamber and the refrigerating chamber have refrigeration requirements, the method further comprises the following steps of closing the freezing fan, wherein the specific flow is as follows:
601. the temperature of the refrigerating chamber is obtained.
The temperature of the refrigerating chamber is obtained by a temperature sensor provided in the refrigerating chamber.
In some embodiments, in order to obtain the temperature of the refrigerating chamber more accurately, temperature sensors are respectively disposed in a plurality of areas of the refrigerating chamber, and then the value obtained by weighting calculation according to the temperatures identified by the temperature sensors in the plurality of areas is determined as the temperature of the refrigerating chamber.
602. And if the temperature of the refrigerating chamber is less than or equal to the preset shutdown temperature of the refrigerating chamber, acquiring the temperature of the freezing chamber.
If the temperature of the refrigerating chamber is less than or equal to the preset shutdown temperature of the refrigerating chamber, the refrigerating air door can be closed when the refrigerating chamber is closed, and whether the refrigerating fan stops running or not needs to further judge whether the temperature of the freezing chamber reaches the preset shutdown temperature or not. Therefore, when the temperature of the refrigerating chamber reaches the preset shutdown temperature, the temperature of the freezing chamber is obtained.
In some embodiments, the set temperature range of the refrigerated compartment is 2 ℃ to 8 ℃. The preset start-up temperature and the preset shut-down temperature of the refrigerating chamber can be set according to practical situations, and are not particularly limited herein. It should be noted that, in other embodiments, in order to make the control effect better, the preset power-on temperature and the preset power-off temperature may be set to a certain adjustable range.
603. If the temperature of the freezing chamber is less than or equal to the preset shutdown temperature of the freezing chamber, the freezing fan is turned off.
The temperature of the freezing chamber is obtained by a temperature sensor provided in the freezing chamber.
In some embodiments, in order to obtain the temperature of the freezing chamber more accurately, temperature sensors are respectively disposed in a plurality of areas of the freezing chamber, and then the value obtained by weighting calculation according to the temperatures identified by the temperature sensors in the plurality of areas is determined as the temperature of the freezing chamber.
If the temperature of the freezing chamber is less than or equal to the preset shutdown temperature of the freezing chamber, the temperature of the freezing chamber reaches the preset shutdown temperature, so that the freezing fan and the compressor are closed, and refrigeration is stopped.
In some embodiments, the freezing chamber has a set temperature in the range of-24 ℃ to-15 ℃. The preset start-up temperature and the preset shut-down temperature of the freezing chamber can be set according to practical situations, and are not particularly limited herein. It should be noted that, in other embodiments, in order to make the control effect better, the preset power-on temperature and the preset power-off temperature may be set to a certain adjustable range.
In other embodiments, controlling the operation state of the freezing blower according to the current ambient temperature, the refrigeration state of the freezing chamber and the refrigeration state of the refrigerating chamber may further include the following states, in particular:
And controlling the running state of the refrigerating fan according to the refrigerating state of the freezing chamber and the refrigerating state of the refrigerating chamber.
And if the refrigerating chamber is determined to have the refrigerating requirement, and the refrigerating chamber is not provided with the refrigerating requirement, controlling the refrigerating fan to operate at a fourth rotating speed. That is, when the refrigerating chamber has a refrigerating demand and the refrigerating chamber has no refrigerating demand, the air door is closed, the refrigerating fan is operated, and the compressor is operated.
And if the refrigerating chamber has no refrigerating requirement, controlling the refrigerating fan to operate at a fifth rotating speed, wherein the fourth rotating speed is larger than the fifth rotating speed. When the refrigerating chamber has no refrigerating requirement, the air door is opened, the refrigerating fan operates, and the compressor stops operating.
The rotation speed of the freezing fan can be changed and updated according to the temperature of the environment, and the rotation speed of the freezing fan is 1350r when the environment temperature is greater than or equal to 8 ℃ and less than 14 ℃, 1530r when the environment temperature is greater than or equal to 14 ℃ and less than 30 ℃, 1740r when the environment temperature is greater than or equal to 30 ℃ and less than 35 ℃, and 1800r when the environment temperature is greater than or equal to 35 ℃. The arrangement is specifically performed according to the actual situation, and is not particularly limited herein.
The refrigerator also comprises an air door and a compressor, wherein the compressor is arranged in the freezing chamber, the air door is arranged at a refrigerating air supply outlet between the refrigerating chamber and the freezing chamber, and the control method further comprises the following steps:
If the refrigerating chamber is determined to have no refrigerating requirement, the compressor is controlled to be closed, and the air door is controlled to be opened. Refrigerating capacity of the freezing chamber is sucked into the refrigerating chamber from the refrigerating chamber air supply opening through the operation of the freezing chamber fan, so that the refrigerating chamber is refrigerated.
If the refrigerating chamber is determined to have the refrigerating requirement, the refrigerating chamber is not required to be refrigerated, the compressor is controlled to be started, and the air door is controlled to be closed. The refrigerating chamber is cooled by the compressor, and the damper is closed to prevent cool air of the refrigerating chamber from entering the refrigerating chamber.
If the refrigerating chamber has the refrigerating requirement, the compressor is controlled to be started, the air door is controlled to be opened, the refrigerating chamber is refrigerated by the compressor, and refrigerating capacity of the refrigerating chamber is sucked into the refrigerating chamber from the air supply opening of the refrigerating chamber by the running of the fan of the refrigerating chamber, so that the refrigerating chamber is refrigerated.
And if the refrigerating chamber is determined to have no refrigerating requirement, controlling the compressor to be closed and controlling the air door to be closed. The refrigerator has no forced refrigerating circulation inside.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a refrigerator according to an embodiment of the application. The embodiment of the application provides a refrigerator 100, the refrigerator 100 comprises a freezing chamber 20, a refrigerating chamber 10, a temperature sensor and a controller, the freezing chamber 20 is provided with a freezing fan 30 and an evaporator 40, the evaporator 40 is used for vaporizing low-pressure liquid refrigerant and absorbing heat and reducing temperature, a refrigerating air return port 70 and a refrigerating air supply port 60 are arranged between the refrigerating chamber 10 and the freezing chamber 20, the refrigerating air supply port 60 is arranged in the upper area of the refrigerating chamber 10, the refrigerating air supply port 60 is arranged in the lower area of the refrigerating chamber 10, cold air of the freezing chamber 20 is input into the refrigerating chamber 10 through the refrigerating air supply port 60, hot air of the refrigerating chamber 10 is input into the freezing chamber 20 through the refrigerating air return port 70, and heat exchange is carried out, so that the temperature of the refrigerating chamber 10 is reduced. The air door 50 is provided at the refrigerating air supply port 60, and cold air of the freezing chamber 20 can be controlled to enter the freezing chamber 20 by providing the air door 50. The temperature sensor is used for detecting the ambient temperature, and the controller is electrically connected with the freezing blower 30, the evaporator 40, the damper 50 and the temperature sensor, and is configured to execute any one of the above control methods, i.e. to control the operation state of the freezing blower 30 according to the current ambient temperature, the refrigeration state of the freezing chamber 20 and the refrigeration state of the refrigerating chamber 10. For example, if it is determined that the ambient temperature is within the first preset range according to the ambient temperature detected by the temperature sensor and it is determined that neither the freezing chamber 20 nor the refrigerating chamber 10 has a refrigerating state, the stop time of the freezing blower 30 is obtained; if the stopping time is determined to be within the first time range, the freezing blower 30 is controlled to be turned on and operated at the first rotational speed.
According to the embodiment of the application, when the stop time of the refrigerating fan 30 reaches a certain time, the refrigerating fan 30 is forcibly started, so that the pressure at the refrigerating air return port 70 can be reduced, at the moment, cold air can be sucked away by the fan, the cold air can be effectively prevented from penetrating into the refrigerating chamber 10 from the freezing chamber 20, and further, the situation that food at the refrigerating air return port 70 is frozen can be avoided.
The refrigerator control method and the refrigerator provided by the embodiment of the application are described in detail. Specific examples are set forth herein to illustrate the principles and embodiments of the present application and are provided to aid in the understanding of the present application. Meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the present description should not be construed as limiting the present application in summary.

Claims (7)

1. A control method of a refrigerator, the refrigerator including a freezing chamber and a refrigerating chamber, a refrigerating return air port being provided between the refrigerating chamber and the freezing chamber, the freezing chamber being provided with a freezing fan, the control method comprising:
Acquiring a refrigerating state of the freezing chamber and a refrigerating state of the refrigerating chamber;
If the freezing chamber and the refrigerating chamber are in a non-refrigeration state and the refrigerating fan is in a stop state, acquiring the stop time of the refrigerating fan;
Acquiring the current ambient temperature; if the ambient temperature is in a first preset range, determining a threshold value as a first threshold value; if the ambient temperature is in a second preset range, determining a threshold value as a second threshold value, wherein the maximum value of the first preset range is smaller than the minimum value of the second preset range, and the first threshold value is smaller than the second threshold value; or alternatively
Acquiring the temperature difference between the current temperature of the freezing chamber and the temperature of the refrigerating chamber; if the temperature difference is within a first preset temperature difference range, determining the threshold value as a third threshold value; if the temperature difference is in a second preset temperature difference range, determining the threshold value as a fourth threshold value, wherein the maximum value of the first preset temperature difference range is smaller than the minimum value of the second preset temperature difference range, and the third threshold value is larger than the fourth threshold value; or alternatively
Acquiring the temperature difference between the current temperature of the freezing chamber and the temperature of the refrigerating chamber, and acquiring the current ambient temperature; if the ambient temperature is in a first preset range, and the temperature difference is in the first preset temperature difference range, determining the threshold value as a fifth threshold value; if the ambient temperature is in the first preset range and the temperature difference is in the second preset temperature difference range, determining the threshold value as a sixth threshold value; if the ambient temperature is in the second preset range and the temperature difference is in the first preset temperature difference range, determining the threshold value as a seventh threshold value; if the ambient temperature is in a second preset range, and the temperature difference is in the second preset temperature difference range, determining the threshold value as an eighth threshold value; the maximum value of the first preset range is smaller than the minimum value of the second preset range, the maximum value of the first preset temperature difference range is smaller than the minimum value of the second preset temperature difference range, and the fifth threshold value, the sixth threshold value, the seventh threshold value and the eighth threshold value are all unequal;
and if the stopping time exceeds the threshold value, controlling the opening of the refrigerating fan.
2. The control method according to claim 1, wherein controlling the cooling fan to be turned on if it is determined that the stop time exceeds a threshold value comprises:
if the stopping time exceeds a second threshold value, controlling the refrigerating fan to run at a first rotating speed for a first time period;
After the refrigerating fan is operated for a first time period, controlling the refrigerating fan to operate at a second rotating speed for a second time period; wherein the second time period is longer than the first time period, and the first rotation speed is greater than the second rotation speed.
3. The control method according to claim 1, wherein controlling the cooling fan to be turned on if it is determined that the stop time exceeds a threshold value comprises:
If the stopping time is determined to exceed the threshold value, acquiring the current environment temperature;
if the ambient temperature is less than the preset temperature, controlling the refrigerating fan to be started at a third rotating speed;
If the ambient temperature is higher than the preset temperature, controlling the refrigeration fan to be started at a fourth rotating speed; the fourth rotational speed is greater than the third rotational speed.
4. The control method according to claim 1, characterized in that after said acquisition of the cooling state of the freezing chamber and the cooling state of the refrigerating chamber, the control method further comprises:
If the freezing chamber and the refrigerating chamber are both in a state of sending refrigeration demands, determining that the freezing fan is in a stop state, and acquiring the current environment temperature;
if the ambient temperature is determined to be within a third preset range, controlling the refrigerating fan to operate at a third rotating speed;
And if the ambient temperature is determined to be in a fourth preset range, controlling the refrigerating fan to run at a fourth rotating speed, wherein the maximum value of the third preset range is smaller than the minimum value of the fourth preset range, and the fourth rotating speed is larger than the third rotating speed.
5. The control method according to claim 4, characterized in that the control method further comprises:
Acquiring the temperature of the refrigerating chamber;
If the temperature of the refrigerating chamber is less than or equal to the preset shutdown temperature of the refrigerating chamber, acquiring the temperature of the freezing chamber;
And if the temperature of the freezing chamber is smaller than or equal to the preset shutdown temperature of the freezing chamber, closing the freezing fan.
6. The control method of claim 1, wherein the refrigerator further comprises a damper and a compressor, the compressor being disposed at the freezer compartment, the damper being disposed at a refrigeration supply outlet between the refrigeration compartment and the freezer compartment, the control method further comprising:
If the refrigerating chamber is determined to have no refrigerating requirement, controlling the compressor to be closed and controlling the air door to be opened;
if the refrigerating chamber is determined to have the refrigerating requirement, and the refrigerating chamber is not determined to have the refrigerating requirement, controlling the compressor to be started and controlling the air door to be closed;
if the refrigerating chamber is determined to have the refrigerating requirement, the compressor is controlled to be started, and the air door is controlled to be opened;
and if the freezing chamber is determined to have no refrigeration requirement, controlling the compressor to be closed and controlling the air door to be closed.
7. A refrigerator, comprising:
The refrigerating chamber is provided with a refrigerating fan and an evaporator;
A refrigerating air return port and a refrigerating air supply port are arranged between the refrigerating chamber and the freezing chamber, and an air door is arranged at the refrigerating air supply port;
a temperature sensor for detecting an ambient temperature;
A controller electrically connected to the chilled fan, the evaporator, the damper and the temperature sensor, the controller configured to perform the control method of any of the preceding claims 1-6.
CN202210684282.6A 2022-06-16 2022-06-16 Refrigerator control method and refrigerator Active CN115014040B (en)

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