CN113154790A - Refrigerator control method and device and refrigerator - Google Patents
Refrigerator control method and device and refrigerator Download PDFInfo
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- CN113154790A CN113154790A CN202110218207.6A CN202110218207A CN113154790A CN 113154790 A CN113154790 A CN 113154790A CN 202110218207 A CN202110218207 A CN 202110218207A CN 113154790 A CN113154790 A CN 113154790A
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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
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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
- F25D2600/00—Control issues
- F25D2600/02—Timing
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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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
Abstract
The application relates to a refrigerator control method. The method comprises the following steps: acquiring the power-on time of the refrigerating unit, and controlling the refrigeration fan to be started when the power-on time is longer than the preset power-on time, wherein the refrigeration fan is used for disturbing the temperature field of the refrigeration chamber; acquiring the temperature of a refrigerating chamber and the temperature of a cold storage material in a refrigerating fan cover; comparing a first temperature difference with a starting point temperature threshold of the refrigerating unit, wherein the first temperature difference is a difference value between the refrigerating chamber temperature and a set refrigerating temperature, and the starting point temperature threshold is greater than zero; when the first temperature difference is larger than the starting point temperature threshold value, comparing a second temperature difference with a cold accumulation temperature difference threshold value, wherein the second temperature difference is the difference value between the cold accumulation material temperature and the set refrigeration temperature, and the cold accumulation temperature difference threshold value is smaller than zero; and when the second temperature difference is larger than the cold accumulation temperature difference threshold value, controlling the refrigerating unit to start. The scheme that this application provided can optimize the refrigeration rate of opening of cold-stored room, improves the refrigerator efficiency, improves the fresh-keeping effect of cold-stored room.
Description
Technical Field
The application relates to the technical field of refrigerators, in particular to a refrigerator control method and equipment and a refrigerator.
Background
The refrigeration of the cold storage chamber of the air-cooled refrigerator is usually realized by a freezing fan transmitting cold air to the cold storage chamber through an air duct opening, but due to the sinking characteristic of cold air, the temperature of the upper half part of the cold storage chamber is low and the temperature of the lower half part of the cold storage chamber is high during the refrigeration period, the temperature of the upper half part of the cold storage chamber is high and the temperature of the lower half part of the cold storage chamber is low during the non-refrigeration period, the frosting phenomenon often appears in the cold storage chamber of the lower half part under the condition of non-uniform temperature of the cold storage chamber, the temperature collected by a cold storage chamber temperature sensor which can only detect the temperature of air nearby the cold storage chamber is inaccurate, the on-off frequency of a compressor used for refrigeration is caused, the power consumption of the refrigerator is increased, and the reliability of the compressor is reduced. In addition, low-temperature cold air directly blown into the refrigerating chamber can cause food frostbite and icing, the fresh-keeping effect is influenced, and the temperature of the refrigerating chamber needs to be accurately controlled.
In the prior art, in a patent publication No. CN106524647B (a control method of a refrigerator), a control method of a refrigerator is proposed, in which opening and closing of a compressor, a fan and an air door are controlled by detecting a compartment temperature and a regenerator temperature, and the regenerator is provided to prevent low-temperature cold air from directly blowing into a refrigerating compartment, thereby achieving energy saving and fresh keeping effects.
The above prior art solutions have the following disadvantages:
the problem of the uniformity of the compartment temperature is not considered, and the detected compartment temperature is inaccurate, so that whether refrigeration is needed or not cannot be accurately judged, and the refrigerating unit is frequently started. Therefore, it is necessary to determine whether to turn on the refrigerating unit according to the temperature of the refrigerating compartment and the temperature of the cool storage material while ensuring the uniform temperature of the compartment.
Disclosure of Invention
In order to overcome the problems in the related art, the application provides a refrigerator control method which can optimize the refrigerating turn-on rate of a refrigerating chamber, improve the energy efficiency of a refrigerator and improve the fresh-keeping effect of the refrigerating chamber.
A first aspect of the present application provides a refrigerator control method, including:
acquiring the power-on time of the refrigerating unit, and controlling the refrigeration fan to be started when the power-on time is longer than the preset power-on time, wherein the refrigeration fan is used for disturbing the temperature field of the refrigeration chamber;
acquiring the temperature of a refrigerating chamber and the temperature of a cold storage material in a refrigerating fan cover;
comparing a first temperature difference with a starting point temperature threshold of the refrigerating unit, wherein the first temperature difference is a difference value between the refrigerating chamber temperature and a set refrigerating temperature, and the starting point temperature threshold is greater than zero;
when the first temperature difference is larger than the starting point temperature threshold value, comparing a second temperature difference with a cold accumulation temperature difference threshold value, wherein the second temperature difference is the difference value between the cold accumulation material temperature and the set refrigeration temperature, and the cold accumulation temperature difference threshold value is smaller than zero;
and when the second temperature difference is larger than the cold accumulation temperature difference threshold value, controlling the refrigerating unit to start.
In one embodiment, when the power-on duration is longer than a preset power-on duration, controlling the refrigeration fan to be turned on includes:
controlling the refrigeration fan to be started for a first operation time, wherein the first operation time is longer than zero;
and after the refrigerating fan is started for the first operation time, controlling the refrigerating fan to be closed and executing the step of acquiring the temperature of the refrigerating chamber and the temperature of the cold storage material.
In one embodiment, before comparing the first temperature differential to the start-up point temperature threshold for the refrigeration unit, the method includes:
comparing the first temperature difference with a stop point temperature threshold of the refrigerating unit, and if the first temperature difference is greater than the stop point temperature threshold, executing a step of comparing the first temperature difference with a start point temperature threshold;
if the first temperature difference is smaller than the shutdown point temperature threshold value, controlling the refrigerating unit to execute a preset operation strategy, wherein the preset operation strategy is a strategy for controlling the refrigerating unit to shutdown and controlling the temperature of the refrigerating chamber according to the set refrigerating temperature;
the shutdown point temperature threshold is less than the startup point temperature threshold.
In one embodiment, controlling the start-up of a refrigeration unit comprises:
controlling the freezing fan and the refrigerator compressor to start and controlling the refrigerating air door to open;
when the starting time of the freezing fan and the refrigerator compressor reaches a second operation time, the second operation time is longer than zero, and the current first temperature difference is compared with the temperature threshold value of the stop point;
if the current first temperature difference is smaller than the shutdown point temperature threshold, controlling the refrigerating air door to be closed and controlling the refrigerating unit to execute a preset operation strategy;
if the current first temperature difference is larger than the stop point temperature threshold, comparing the current second temperature difference with the cold accumulation temperature difference threshold;
if the current second temperature difference is smaller than the cold accumulation temperature difference threshold value, controlling the cold accumulation air door to be closed, controlling the refrigerating unit to execute a preset operation strategy, and controlling the cold accumulation air fan to be started;
and if the current second temperature difference is larger than the cold accumulation temperature difference threshold value, maintaining the running state of the refrigerating unit unchanged.
In one embodiment, controlling the refrigeration fan to activate comprises:
after the refrigeration fan is controlled to be started for a first operation time, comparing the current first temperature difference with a stop point temperature threshold;
if the current first temperature difference is smaller than the stop point temperature threshold, controlling the refrigeration fan to stop;
and if the current first temperature difference is larger than the temperature threshold value of the stop point, controlling the refrigerating unit to start.
In one embodiment, after comparing the second temperature difference to the cold storage temperature difference threshold, the method comprises:
and when the second temperature difference is smaller than the cold accumulation temperature difference threshold value, controlling the refrigeration fan to be started and controlling the refrigeration unit to execute a preset operation strategy.
In one embodiment, controlling the refrigeration fan to be turned on and controlling the refrigeration unit to execute a preset operation strategy includes:
and controlling the refrigeration fan to operate for a third operation time, wherein the third operation time is longer than zero.
In one embodiment, after controlling the operation of the refrigeration fan for the third operation period, the method includes:
comparing the current first temperature difference with a shutdown point temperature threshold;
if the current first temperature difference is smaller than the stop point temperature threshold, controlling the refrigeration fan to be closed;
and if the current first temperature difference is larger than the temperature threshold value of the stop point, controlling the refrigerating unit to start.
A second aspect of the present application provides a refrigerator control apparatus comprising:
the data acquisition device and the master control circuit;
the data acquisition device is connected with the main control circuit and used for acquiring the power-on duration, the refrigerating chamber temperature and the cold storage material temperature of the refrigerating unit and sending the power-on duration, the refrigerating chamber temperature and the cold storage material temperature to the main control circuit, the main control circuit is used for acquiring parameters acquired by the data acquisition device, and the novel refrigerator is controlled according to the method of any one of claims 1 to 8.
A third aspect of the present application provides a refrigerator comprising: the refrigerator control apparatus of claim 9.
The technical scheme provided by the application can comprise the following beneficial effects:
whether the power-on time of the refrigerator meets the preset duration is judged to control the refrigerating fan to disturb the refrigerating chamber temperature field, the refrigerating chamber temperature and the cold accumulation material temperature are obtained through detection, according to the comparison result of the difference value of the refrigerating chamber temperature and the set refrigerating temperature and the starting point temperature threshold value, whether the temperature of the refrigerating chamber is needed or not is determined, if needed, whether the temperature of the cold accumulation material is low enough or not is determined further according to the comparison result of the difference value of the cold accumulation material temperature and the set refrigerating temperature and the cold accumulation temperature difference threshold value, the requirement for reducing the refrigerating chamber temperature is met, and if the temperature of the cold accumulation material is not low enough, the refrigerating unit is started. Compared with the prior art, the scheme adds the control of the refrigeration fan to disturb the refrigeration compartment temperature field, achieves the effect of improving the temperature uniformity of the refrigeration compartment, improves the accuracy of compartment temperature detection, compares the obtained first temperature difference and the obtained second temperature difference with corresponding threshold values respectively after the refrigeration compartment temperature and the cold storage material temperature are respectively different from the set refrigeration temperature, determines whether the refrigerating unit is started or not according to the comparison result, avoids the problem of frequent starting of the refrigerating unit due to inaccurate temperature detection while fully considering the setting requirement of a user on the refrigerator temperature, intelligently reduces the unnecessary power consumption of the refrigerator, improves the operation energy efficiency of the refrigerator, enhances the reliability of the refrigerating unit, and improves the fresh-keeping effect of the refrigeration compartment.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
FIG. 1 is a schematic flow chart of an embodiment of a refrigerator control method according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of an embodiment of a refrigerator control method according to an embodiment of the present application;
FIG. 3 is a schematic flow chart of an embodiment of a refrigerator control method according to an embodiment of the present application;
FIG. 4 is a schematic flow chart of a refrigerator control method according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a refrigerator control apparatus according to an embodiment of the present application.
Detailed Description
Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Example one
The refrigeration of the cold storage chamber of the air-cooled refrigerator is usually realized by a freezing fan transmitting cold air to the cold storage chamber through an air duct opening, but due to the sinking characteristic of cold air, the temperature of the upper half part of the cold storage chamber is low and the temperature of the lower half part of the cold storage chamber is high during the refrigeration period, the temperature of the upper half part of the cold storage chamber is high and the temperature of the lower half part of the cold storage chamber is low during the non-refrigeration period, the frosting phenomenon often appears in the cold storage chamber of the lower half part under the condition of non-uniform temperature of the cold storage chamber, the temperature collected by a cold storage chamber temperature sensor which can only detect the temperature of air nearby the cold storage chamber is inaccurate, the on-off frequency of a compressor used for refrigeration is caused, the power consumption of the refrigerator is increased, and the reliability of the compressor is reduced. In addition, low-temperature cold air directly blown into the refrigerating chamber can cause food frostbite and icing, the fresh-keeping effect is influenced, and the temperature of the refrigerating chamber needs to be accurately controlled. In the prior art, a refrigerator control method is provided, wherein opening and closing of a compressor, a fan and an air door are controlled by detecting the temperature of a compartment and the temperature of a regenerator, and low-temperature cold air is prevented from directly blowing into a refrigerating chamber by arranging the regenerator, so that the effects of energy conservation and fresh keeping are achieved. However, the prior art scheme has the defects that the problem of the temperature uniformity of the compartment is not considered, and the detected temperature of the compartment is inaccurate, so that whether refrigeration is needed or not cannot be accurately judged, and the refrigerating unit is frequently started. Therefore, it is necessary to determine whether to turn on the refrigerating unit according to the temperature of the refrigerating compartment and the temperature of the cool storage material while ensuring the uniform temperature of the compartment.
In view of the above problems, embodiments of the present application provide a refrigerator control method, which can optimize the refrigeration turn-on rate of a refrigerating chamber, improve the energy efficiency of a refrigerator, and improve the fresh-keeping effect of the refrigerating chamber.
The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of an embodiment of a refrigerator control method in an embodiment of the present application.
Referring to fig. 1, an embodiment of a refrigerator control method according to an embodiment of the present application includes:
101. judging whether to start a refrigeration fan according to the electrifying time of the refrigeration unit;
in the embodiments of the present application, the refrigeration unit refers to various components for producing refrigeration capacity for the refrigerator, including but not limited to a compressor, a condenser, an evaporator, and the like.
The method comprises the steps of comparing the power-on duration of a refrigerating unit with a preset power-on duration, and when the power-on duration is longer than the preset power-on duration, indicating that the operation of a refrigerating component is in a relatively stable state, possibly enabling the refrigerating component to enter a low-power-consumption operation mode or even to be shut down, and at the moment, the temperature in a refrigerating chamber is possibly raised or cooled air sinks to cause the problem of uneven temperature in the refrigerating chamber.
102. Acquiring the temperature of a refrigerating chamber and the temperature of a cold storage material in a refrigerating fan cover;
the temperature field of the refrigerating chamber is disturbed, the temperature distribution is uniform, the temperature of the refrigerating chamber is detected through the temperature sensing bag arranged in the refrigerating chamber, and the obtained temperature of the refrigerating chamber can reflect the actual temperature of the whole refrigerating chamber.
The temperature of the cold storage material is detected by a temperature sensor arranged in the cold storage fan cover. In the embodiment of the present application, the refrigerating fan cover refers to a device including, but not limited to, a refrigerating fan, a cold storage material, a temperature sensor, an air duct opening, an air outlet, and the like, and is generally disposed in the refrigerating compartment of the refrigerator, and the cold storage material in the refrigerating fan cover is used for absorbing and storing cold energy from cold air in the refrigerating compartment, so as to raise the temperature of the cold air entering the refrigerating compartment for conveying, and prevent cold air with too low temperature from freezing food.
In this application embodiment, cold-storage material can be one and install in the soft package of the inside sponge of cold-stored fan housing, and the surface at its top is a concave-convex face for form even cold wind field, can understand, can change cold-storage material's shape and material according to the practical application condition in practical application, do not limit.
The cold air of the freezing chamber is conveyed into the cold storage air cover from the freezing chamber through the air duct opening to provide refrigeration for the cold storage chamber, after the cold air conveyed from the freezing chamber is absorbed and stored for a certain amount of cold by the cold storage material, one part of the cold air is conveyed into the cold storage chamber through the air outlet, the other part of the cold air is blown out of the cold storage chamber by the cold storage fan, the cold storage fan is right opposite to the concave-convex surface at the top of the cold storage material, when the cold storage fan works, the cold storage fan blows the cold air from the upper surface to the lower surface to the concave-convex surface, and an even cold air field is formed through the concave-convex surface and blown out of the cold storage chamber.
It should be understood that, in practical applications, the structural design and related functions of the refrigerating fan housing are various and need to be specifically designed according to practical application situations, and the structural design and related functions of the refrigerating fan housing are only exemplary, and are only used for better understanding of the operating principle of the refrigerating fan housing, and are not taken as the only limitation of the structural and functional design method of the refrigerating fan housing.
103. Comparing the first temperature difference with a starting point temperature threshold value of the refrigerating unit;
in the embodiment of the present application, the first temperature difference is a difference between the refrigerating compartment temperature and the set refrigerating temperature.
In the embodiment of the application, a temperature threshold for judging whether the refrigerating chamber needs to be refrigerated or not, namely a starting point temperature threshold is preset, namely if the first temperature difference is greater than the starting point temperature threshold, the temperature of the refrigerating chamber is considered to be slightly higher than the set refrigerating temperature and cannot meet the preservation requirement, and the refrigerating chamber has a refrigerating requirement; if the first temperature difference is smaller than the starting point temperature threshold, the temperature of the refrigerating chamber is considered to be slightly lower than the set refrigerating temperature or only slightly higher than the set refrigerating temperature, the refrigerating chamber is still in the temperature range capable of maintaining the fresh-keeping effect, and the refrigerating chamber has no refrigerating requirement temporarily.
For example, the threshold of the starting point temperature may be set to 2 ℃, and in practical applications, different temperature values may be set according to practical application conditions, which is not limited herein.
104. Comparing the second temperature difference with a cold accumulation temperature difference threshold value;
in the embodiment of the application, when the first temperature difference is greater than the starting point temperature threshold, the second temperature difference is compared with the cold storage temperature difference threshold, and the second temperature difference is the difference between the cold storage material temperature and the set refrigeration temperature.
In the embodiment of the application, a temperature threshold for judging whether the temperature of the cold storage material is low enough, namely a cold storage temperature difference threshold, is preset, namely if the second temperature difference is greater than the cold storage temperature difference threshold, the temperature of the cold storage material is considered to be higher than the set refrigeration temperature, and the temperature of the cold storage material is not low enough; if the second temperature difference is smaller than the cold accumulation temperature difference threshold value, the temperature of the cold accumulation material is considered to be lower than the set refrigeration temperature or only slightly higher than the set refrigeration temperature, and the temperature of the cold accumulation material is low enough.
For example, the cold storage temperature difference threshold may be set to-4 ℃, and in practical application, different temperature values may be set according to practical application conditions, which is not limited herein.
105. Judging whether to control the starting of the refrigerating unit;
when the second temperature difference is larger than the cold accumulation temperature difference threshold value, the temperature of the cold accumulation material is not low enough to meet the refrigeration requirement of the cold storage chamber, and therefore the refrigeration unit needs to be controlled to start so as to provide enough refrigeration capacity.
The first embodiment described above shows the following advantages:
whether the power-on time of the refrigerator meets the preset duration is judged to control the refrigerating fan to disturb the refrigerating chamber temperature field, the refrigerating chamber temperature and the cold accumulation material temperature are obtained through detection, according to the comparison result of the difference value of the refrigerating chamber temperature and the set refrigerating temperature and the starting point temperature threshold value, whether the temperature of the refrigerating chamber is needed or not is determined, if needed, whether the temperature of the cold accumulation material is low enough or not is determined further according to the comparison result of the difference value of the cold accumulation material temperature and the set refrigerating temperature and the cold accumulation temperature difference threshold value, the requirement for reducing the refrigerating chamber temperature is met, and if the temperature of the cold accumulation material is not low enough, the refrigerating unit is started. Compared with the prior art, the scheme adds the control of the refrigeration fan to disturb the refrigeration compartment temperature field, achieves the effect of improving the temperature uniformity of the refrigeration compartment, improves the accuracy of compartment temperature detection, compares the obtained first temperature difference and the obtained second temperature difference with corresponding threshold values respectively after the refrigeration compartment temperature and the cold storage material temperature are respectively different from the set refrigeration temperature, determines whether the refrigerating unit is started or not according to the comparison result, avoids the problem of frequent starting of the refrigerating unit due to inaccurate temperature detection while fully considering the setting requirement of a user on the refrigerator temperature, intelligently reduces the unnecessary power consumption of the refrigerator, improves the operation energy efficiency of the refrigerator, enhances the reliability of the refrigerating unit, and improves the fresh-keeping effect of the refrigeration compartment.
Example two
In practical application, the temperature field in the refrigerating chamber is disturbed for a certain period of time, then the refrigerating chamber temperature is detected to obtain an accurate refrigerating chamber temperature, the difference value between the refrigerating chamber temperature and the set refrigerating temperature is compared with the shutdown point temperature threshold value and then compared with the startup point temperature threshold value, the temperature value of the refrigerating startup and shutdown point is fully considered, the temperature level of the refrigerating chamber is determined, and whether the refrigerating chamber has a refrigerating requirement or not is determined.
Fig. 2 is a schematic flow chart of an embodiment of a refrigerator control method in the embodiment of the present application.
Referring to fig. 2, an embodiment of a refrigerator control method according to the embodiment of the present application includes:
201. when the electrifying time is longer than the preset electrifying time, controlling to start the refrigerating fan to reach a first operation time;
in the embodiment of the present application, the first operation duration is greater than zero, for example, the first operation duration may be 10 minutes, and in practical applications, the first operation duration may be changed to other values according to practical application conditions, which is not limited herein.
The starting time of the refrigerating fan is set to ensure that a temperature field in the refrigerating chamber is fully disturbed, so that cold air in the refrigerating chamber is uniformly distributed to achieve the effect of uniform temperature, and the unnecessary energy consumption of the refrigerating fan is reduced.
202. Comparing the first temperature difference to a shutdown point temperature threshold;
in the embodiment of the application, a temperature value for controlling the refrigeration unit to stop, namely a stop point temperature threshold value, is preset, namely if the first temperature difference is smaller than the stop point temperature threshold value by default, the temperature level of the refrigerating chamber is considered to be low enough to meet the preservation requirement, and the refrigeration unit is only required to be controlled to execute a preset operation strategy; if the first temperature difference is greater than the shutdown point temperature threshold, the temperature of the refrigerating chamber is not low enough, the preservation requirement may not be met, and the refrigeration requirement may need to be provided to ensure the preservation effect of the refrigerating chamber.
For example, the shutdown point temperature threshold may be set to-2 ℃, and in practical applications, different temperature values may be set according to practical application conditions, which is not limited herein.
In the embodiment of the application, the preset operation strategy refers to an original preset strategy of a refrigerating unit foundation, the preset operation strategy is a strategy of controlling the refrigerating unit to stop and controlling the temperature of the refrigerating chamber according to the set refrigerating temperature, and specifically, the temperature of the refrigerating chamber can be controlled through cold air output by an air outlet in the refrigerating fan housing.
It will be understood that, in practical applications, there are various methods for controlling the temperature of the refrigerating compartment according to the set refrigerating temperature when the refrigerating unit is stopped, and the temperature control method in the preset operation strategy is only exemplary and is not intended as the only limitation for controlling the temperature of the refrigerating compartment according to the set refrigerating temperature when the refrigerating unit is stopped.
203. Comparing the first temperature difference with a starting point temperature threshold value;
when the first temperature difference is greater than the shutdown point temperature threshold, the temperature of the refrigerating chamber is not low enough, the preservation requirement may not be met, the running state of the refrigerating unit may need to be changed to ensure the preservation effect of the refrigerating chamber, the first temperature difference needs to be compared with the startup point temperature threshold, whether the refrigerating chamber has the refrigeration requirement is further determined, and the startup point temperature threshold is greater than the shutdown point temperature threshold.
And when the first temperature difference is larger than the starting point temperature threshold value, determining that the refrigerating chamber has a refrigerating requirement.
The following beneficial effects can be seen from the second embodiment:
the effect of disturbing the temperature field of the refrigerating chamber is achieved by setting the starting time of the refrigerating fan when the electrifying time is longer than the preset electrifying time, and after the accurate refrigerating chamber temperature is obtained, the difference value of the refrigerating chamber temperature and the set refrigerating temperature is sequentially compared with the stop point temperature threshold value and the starting point temperature threshold value, and whether the refrigerating chamber has the refrigerating requirement or not is determined. Compared with the prior art, the technical scheme of the embodiment of the application increases the setting of the starting time of the refrigerating fan when the electrifying time is longer than the preset electrifying time, so that the temperature field of the refrigerating chamber is fully disturbed, the temperature of the refrigerating chamber is uniform, unnecessary energy consumption caused by the overlong starting time of the refrigerating fan is saved, and the energy efficiency of the refrigerator is improved; the temperature value of a refrigeration start-stop point is fully considered, the temperature level of the refrigeration chamber is determined, whether the refrigeration chamber has a refrigeration requirement or not is accurately determined, the start-up rate of the refrigerating unit is optimized, the condition that the refrigerating unit is frequently started is avoided, the reliability of the refrigerating unit is improved, and the energy-saving effect is achieved.
EXAMPLE III
For the convenience of understanding, an embodiment of a control method for a refrigerator is provided below for explanation, and in practical applications, after the refrigeration unit is started, the refrigeration compartment temperature and the cold storage material temperature are also detected and judged to determine whether the refrigeration unit can enter a shutdown state.
Fig. 3 is a schematic flow chart of an embodiment of a refrigerator control method in an embodiment of the present application.
Referring to fig. 3, a third embodiment of the refrigerator control method in the embodiment of the present application includes:
301. controlling the starting of the refrigerating unit;
in the embodiments of the present application, controlling the refrigeration unit activation includes, but is not limited to, controlling the freezer fan and the refrigerator compressor activation and controlling the refrigeration damper opening.
The refrigeration unit is controlled to be started for a second operation time period, the second operation time period is greater than zero, for example, the second operation time period may be set to 15 minutes, and in practical application, the second operation time period may be changed to other values according to practical application conditions, which is not limited herein.
302. Comparing the current first temperature difference with a shutdown point temperature threshold;
and when the running time of the refrigerating unit reaches the second running time, acquiring the current temperature of the refrigerating chamber, comparing the difference value between the current temperature of the refrigerating chamber and the set refrigerating temperature, namely the current first temperature difference with the stop point temperature threshold, and judging whether the temperature of the refrigerating chamber is low enough after the running time of the refrigerating unit reaches the second running time, so as to meet the preservation requirement.
If the current first temperature difference is smaller than the shutdown point temperature threshold, the temperature of the cold storage chamber is low enough to meet the preservation requirement, and the cold storage air door is controlled to be closed and the refrigerating unit is controlled to execute a preset operation strategy.
303. If the current first temperature difference is larger than the stop point temperature threshold, comparing the current second temperature difference with the cold accumulation temperature difference threshold;
when the operation time of the refrigerating unit reaches the second operation time, if the current first temperature difference is greater than the shutdown point temperature threshold, the temperature of the refrigerating chamber is not low enough, the preservation requirement is not met, and the temperature of the refrigerating chamber needs to be reduced continuously to ensure the preservation effect of the refrigerating chamber.
The method comprises the steps of obtaining the current temperature of the cold storage material, comparing the current temperature of the cold storage material with the set cold storage temperature, namely the current second temperature difference with a cold storage temperature difference threshold value, judging whether the temperature of the cold storage material is low enough after the refrigerating unit runs for a long time and reaches the second running time, and whether the temperature of the cold storage chamber can be continuously reduced by utilizing the cold stored by the cold storage material.
If the current second temperature difference is larger than the cold accumulation temperature difference threshold value, the temperature of the cold accumulation material is not low enough, the cold energy absorbed and stored by the cold accumulation material is not enough to reduce the temperature of the cold storage chamber, the running state of the refrigerating unit is kept unchanged, and the running of the refrigerating unit is continuously controlled to reach the second running time so as to continuously reduce the temperature of the cold storage chamber and ensure the fresh-keeping effect of the cold storage chamber.
304. If the current second temperature difference is smaller than the cold accumulation temperature difference threshold value, controlling the cold accumulation air door to be closed, controlling the refrigerating unit to execute a preset operation strategy, and controlling the cold accumulation air fan to be started;
if the current second temperature difference is smaller than the cold accumulation temperature difference threshold value, the temperature of the cold accumulation material is low enough, the cold amount absorbed and stored by the cold accumulation material can be used for continuously reducing the temperature of the cold storage chamber, the cold accumulation air door is controlled to be closed, the refrigerating unit is controlled to execute a preset operation strategy, the refrigerating fan is controlled to be started for the first operation time, the cold air cooled by the cold accumulation material is blown into the cold storage chamber by the refrigerating fan, on one hand, the temperature of the cold storage chamber is continuously reduced, on the other hand, the temperature field of the cold storage chamber is disturbed, and the cold air entering the cold storage chamber from the cold storage chamber is uniformly distributed.
305. Comparing the current first temperature difference with a shutdown point temperature threshold;
when the refrigerating fan is started for the first running time, the current temperature of the refrigerating chamber is obtained again, the current first temperature difference is calculated, the current first temperature difference is compared with the stop point temperature threshold, and whether the current temperature of the refrigerating chamber can meet the preservation requirement or not is judged after the cold energy absorbed and stored by the cold storage material is continuously used for reducing the temperature of the refrigerating chamber.
If the current first temperature difference is smaller than the stop point temperature threshold, the temperature of the cold storage chamber is low enough to meet the preservation requirement, and the cold storage fan can be controlled to be closed; if the current first temperature difference is larger than the temperature threshold of the stop point, the temperature of the refrigerating chamber is still not low enough to meet the preservation requirement, and the cold energy stored by the cold storage material is not enough to continuously reduce the temperature of the refrigerating chamber, so that the refrigerating unit needs to be controlled to be restarted to continuously reduce the temperature of the refrigerating chamber, and the preservation effect of the refrigerating chamber is ensured.
The third embodiment can show the following beneficial effects:
by controlling the starting of the refrigerating unit, the temperatures of the refrigerating chamber and the cold accumulation material are reduced simultaneously, after the refrigerating unit runs for the second running time, the temperature condition of the refrigerating chamber is judged firstly, when the temperature of the refrigerating chamber does not meet the requirement, whether the temperature of the cold accumulation material is enough to continue to reduce the temperature of the refrigerating chamber is further judged, when the temperature of the cold accumulation material is low enough, the refrigerating unit is stopped, cold air cooled by the cold accumulation material is blown to the refrigerating chamber by a refrigerating fan and lasts for the first running time, the temperature condition of the current refrigerating chamber is judged again, and whether the refrigerating requirement is met is determined. Compared with the prior art, the technical scheme of the embodiment of the application opens the refrigeration air door when the refrigerating unit is started, reduces the temperature of the refrigerating chamber and the cold accumulation material, further reduces the temperature of the refrigerating chamber by utilizing the cold energy stored in the cold accumulation material, shortens the starting time of the refrigerating unit, reasonably controls the storage cold energy of the cold accumulation material, improves the temperature control precision of the refrigerating chamber, widens the refrigerating and fresh-keeping range, and reduces the energy consumption of the refrigerating unit; the problem of cold volume deposit has been avoided through the disturbance of fan, makes the indoor temperature distribution of cold-storage room even, promotes the fresh-keeping effect of cold-storage room.
Example four
In practical applications, when it is determined whether the refrigeration unit needs to be started, if the second temperature difference is smaller than the cold storage temperature difference threshold, that is, based on the set refrigeration temperature set by the user, the temperature of the cold storage material is sufficiently low, in this case, it is not necessary to directly start the refrigeration unit to meet the refrigeration requirement of the refrigeration compartment, and the operation rate of the refrigeration unit is optimized.
Fig. 4 is a schematic flowchart of a fourth embodiment of a refrigerator control method in an embodiment of the present application.
Referring to fig. 4, a fourth embodiment of the refrigerator control method in the embodiment of the present application includes:
401. when the second temperature difference is smaller than the cold accumulation temperature difference threshold value, controlling the refrigeration fan to be started;
when the second temperature difference is smaller than the cold accumulation temperature difference threshold, it is indicated that the temperature of the cold accumulation material is low enough, the cold amount stored by the cold accumulation material can be used to reduce the temperature of the refrigerating chamber, and the refrigerating fan is controlled to start and operate for a third operation time period, where the third operation time period is greater than zero.
The cold air cooled by the cold storage material is blown into the cold storage chamber by the cold storage fan, so that the temperature of the cold storage chamber is continuously reduced on one hand, and the temperature field of the cold storage chamber is disturbed on the other hand, so that the cold air in the cold storage chamber is uniformly distributed, and the effect of uniform temperature is achieved.
402. When the operation of the refrigerating fan reaches the third operation length, comparing the current first temperature difference with the stop point temperature threshold;
and when the operation time of the refrigerating fan reaches the third operation time, acquiring the current temperature of the refrigerating chamber, comparing the difference value of the current temperature of the refrigerating chamber and the set refrigerating temperature, namely the current first temperature difference with the stop point temperature threshold value, and judging whether the temperature of the refrigerating chamber is low enough after the operation time of the refrigerating fan reaches the third operation time, so as to meet the preservation requirement.
If the current first temperature difference is smaller than the stop point temperature threshold, the temperature of the refrigerating chamber is low enough to meet the preservation requirement, and the refrigerating fan is controlled to be closed and the refrigerating unit is controlled to execute a preset operation strategy.
If the current first temperature difference is larger than the stop point temperature threshold, the refrigerating unit is controlled to be started so as to reduce the temperature of the refrigerating chamber, meet the refrigerating requirement of the refrigerating chamber and ensure the fresh-keeping effect of the refrigerating chamber.
The following beneficial effects can be seen from the fourth embodiment:
through the judgement to the temperature condition of cold-storage material, when cold-storage material temperature was low enough, utilize cold storage fan to blow out the cold wind through the cold-storage material cooling and last the third operation for a long time, after reaching the effect that reduces cold-storage room temperature, judge the current temperature condition in cold-storage room again, when cold-storage room temperature still unsatisfied the required temperature of fresh-keeping requirement, just control refrigerating unit and open. Compared with the prior art, the technical scheme of this application embodiment can carry out effective application to the cold volume that cold-storage material was stored to cold volume through the long settlement of fan operation to cold-storage material storage carries out reasonable control, optimizes refrigerating unit's rate of opening, reduces the refrigerator energy consumption, avoids cold volume deposit, promotes the fresh-keeping effect of cold-storage room, improves the refrigerator efficiency, improves refrigerating unit's reliability, prolongs refrigerating unit's life.
EXAMPLE five
Corresponding to the embodiment of the application function implementation method, the application also provides refrigerator control equipment and a corresponding embodiment.
Fig. 5 is a schematic structural diagram of a refrigerator control apparatus according to an embodiment of the present application.
Referring to fig. 5, the refrigerator control apparatus includes: the refrigerator comprises a data acquisition device 2000 and a main control circuit 1000, wherein the data acquisition device is connected with the main control circuit and used for acquiring the power-on duration of the refrigerating unit, the temperature of the refrigerating chamber and the temperature of the cold storage material in the refrigerating fan housing and sending the obtained values to the main control circuit, and the main control circuit is used for acquiring parameters acquired by the data acquisition device and executing the control method of the refrigerator.
The master control circuit 1000 includes a memory 1010, a processing chip 1020, and an analog-to-digital converter 1030.
The Processing chip 1020 may be a Central Processing Unit (CPU), other general purpose Processing chip, a Digital Signal Processing chip (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. The general purpose processing chip may be a micro processing chip or the processing chip may be any conventional processing chip or the like.
The memory 1010 may include various types of storage units, such as system memory, Read Only Memory (ROM), and permanent storage. Wherein the ROM may store static data or instructions that are needed by the processing chip 1020 or other modules of the computer. The persistent storage device may be a read-write storage device. The persistent storage may be a non-volatile storage device that does not lose stored instructions and data even after the computer is powered off. In some embodiments, the persistent storage device employs a mass storage device (e.g., magnetic or optical disk, flash memory) as the persistent storage device. In other embodiments, the permanent storage may be a removable storage device (e.g., floppy disk, optical drive). The system memory may be a read-write memory device or a volatile read-write memory device, such as a dynamic random access memory. The system memory may store instructions and data that are needed for some or all of the processing chips to operate. The memory 1010 has stored thereon executable code, which when processed by the processing chip 1020, may cause the processing chip 1020 to perform some or all of the methods described above.
The analog-to-digital converter 1030 functions to convert a time-continuous and amplitude-continuous analog signal into a time-discrete and amplitude-discrete digital signal. In the embodiment of the present application, after receiving the analog signal detected by the data acquisition device 2000, the analog signal is converted into a digital signal by the analog-to-digital converter and transmitted to the processing chip 1020 for processing.
EXAMPLE six
Embodiments of the present application also provide a refrigerator having the above-mentioned refrigerator control apparatus, and with respect to the refrigerator in the embodiments of the present application, the specific manner in which the refrigerator control apparatus performs the operation has been described in detail in the embodiments related to the method, and will not be elaborated herein.
The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. Those skilled in the art should also appreciate that the acts and modules referred to in the specification are not necessarily required in the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.
Furthermore, the method according to the present application may also be implemented as a computer program or computer program product comprising computer program code instructions for performing some or all of the steps of the above-described method of the present application.
Alternatively, the present application may also be embodied as a non-transitory machine-readable storage medium (or a computer-readable storage medium, or a machine-readable storage medium) having stored thereon executable code (or a computer program, or computer instruction code) which, when executed by a processing chip of a master control circuit (or master control circuit, server, etc.), causes the processing chip to perform part or all of the various steps of the above-described method according to the present application.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the applications disclosed herein may be implemented as electronic hardware, computer software, or combinations of both.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems and methods according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A refrigerator control method, comprising:
the method comprises the steps that the power-on duration of a refrigerating unit is obtained, and when the power-on duration is longer than the preset power-on duration, a refrigerating fan is controlled to be started and used for disturbing a temperature field of a refrigerating chamber;
acquiring the temperature of a refrigerating chamber and the temperature of a cold storage material in a refrigerating fan cover;
comparing a first temperature difference with a starting point temperature threshold of the refrigerating unit, wherein the first temperature difference is a difference value between the refrigerating chamber temperature and a set refrigerating temperature, and the starting point temperature threshold is greater than zero;
when the first temperature difference is larger than the starting point temperature threshold value, comparing a second temperature difference with a cold accumulation temperature difference threshold value, wherein the second temperature difference is the difference value between the cold accumulation material temperature and the set refrigeration temperature, and the cold accumulation temperature difference threshold value is smaller than zero;
and when the second temperature difference is larger than the cold accumulation temperature difference threshold value, controlling the refrigerating unit to start.
2. The refrigerator control method according to claim 1,
when the circular telegram is long when being greater than preset circular telegram duration, control cold-stored fan and open, include:
controlling the refrigeration fan to be started for a first operation time, wherein the first operation time is longer than zero;
and after the refrigerating fan is started for the first operation time, controlling the refrigerating fan to be closed and executing the steps of acquiring the temperature of the refrigerating chamber and the temperature of the cold storage material.
3. The refrigerator control method according to claim 1,
before comparing the first temperature difference with the starting point temperature threshold of the refrigerating unit, the method comprises the following steps:
comparing the first temperature difference with a stop point temperature threshold of the refrigerating unit, and if the first temperature difference is greater than the stop point temperature threshold, executing the step of comparing the first temperature difference with the start point temperature threshold;
if the first temperature difference is smaller than the shutdown point temperature threshold value, controlling the refrigerating unit to execute a preset operation strategy, wherein the preset operation strategy is a strategy for controlling the refrigerating unit to shutdown and controlling the temperature of the refrigerating chamber according to the set refrigerating temperature;
the shutdown point temperature threshold is less than the startup point temperature threshold.
4. The refrigerator control method according to claim 3,
the controlling the refrigeration unit to start includes:
controlling the freezing fan and the refrigerator compressor to start and controlling the refrigerating air door to open;
when the starting time of the freezing fan and the refrigerator compressor reaches a second operation time, the second operation time is longer than zero, and the current first temperature difference is compared with the temperature threshold value of the stop point;
if the current first temperature difference is smaller than the stop point temperature threshold value, controlling the refrigeration air door to be closed and controlling the refrigerating unit to execute the preset operation strategy;
if the current first temperature difference is larger than the stop point temperature threshold value, comparing the current second temperature difference with the cold accumulation temperature difference threshold value;
if the current second temperature difference is smaller than the cold accumulation temperature difference threshold value, the refrigeration air door is controlled to be closed, the refrigeration unit is controlled to execute the preset operation strategy, and the refrigeration fan is controlled to be started;
and if the current second temperature difference is larger than the cold accumulation temperature difference threshold value, maintaining the running state of the refrigerating unit unchanged.
5. The refrigerator control method according to claim 4,
the control the refrigeration fan starts, include:
after the refrigerating fan is controlled to be started for the first operation time, comparing the current first temperature difference with the stop point temperature threshold;
if the current first temperature difference is smaller than the stop point temperature threshold, controlling the refrigeration fan to stop;
and if the current first temperature difference is larger than the stop point temperature threshold value, controlling the refrigerating unit to start.
6. The refrigerator control method according to claim 1,
after comparing the second temperature difference with the cold accumulation temperature difference threshold value, the method comprises the following steps:
and when the second temperature difference is smaller than the cold accumulation temperature difference threshold value, controlling the refrigeration fan to be started and controlling the refrigerating unit to execute the preset operation strategy.
7. The refrigerator control method according to claim 6,
the controlling the refrigeration fan to be started and the refrigerating unit to execute the preset operation strategy comprises the following steps:
and controlling the refrigeration fan to operate for a third operation time, wherein the third operation time is longer than zero.
8. The refrigerator control method according to claim 7,
after controlling the operation of the refrigerating fan for a third operation time, the method comprises the following steps:
comparing the current first temperature difference with the stop point temperature threshold;
if the current first temperature difference is smaller than the stop point temperature threshold value, controlling the refrigeration fan to be closed;
and if the current first temperature difference is larger than the stop point temperature threshold value, controlling the refrigerating unit to start.
9. A refrigerator control apparatus, characterized by comprising:
the data acquisition device and the master control circuit;
the data acquisition device is connected with the main control circuit and used for acquiring the power-on duration, the temperature of the refrigerating chamber and the temperature of the cold storage material of the refrigerating unit and sending the power-on duration, the temperature of the refrigerating chamber and the temperature of the cold storage material to the main control circuit, the main control circuit is used for acquiring parameters acquired by the data acquisition device and controlling the refrigerator according to the method of any one of claims 1 to 8.
10. A refrigerator, characterized by comprising: the refrigerator control apparatus of claim 9.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115060017A (en) * | 2022-08-19 | 2022-09-16 | 合肥美的电冰箱有限公司 | Control method of refrigeration equipment, refrigeration equipment and storage medium |
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