CN114061259A - Control method of refrigeration equipment - Google Patents
Control method of refrigeration equipment Download PDFInfo
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- CN114061259A CN114061259A CN202111442214.0A CN202111442214A CN114061259A CN 114061259 A CN114061259 A CN 114061259A CN 202111442214 A CN202111442214 A CN 202111442214A CN 114061259 A CN114061259 A CN 114061259A
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- refrigeration equipment
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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
- F25D2700/02—Sensors detecting door opening
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention discloses a control method of refrigeration equipment, which comprises the following steps: acquiring a reference temperature detected by a reference temperature sensor in a refrigeration equipment room; acquiring auxiliary temperature detected by an auxiliary temperature sensor in a refrigeration equipment room; acquiring a temperature difference value between the reference temperature and the auxiliary temperature; judging whether the temperature difference value is less than or equal to a preset temperature difference threshold value or not; if so, controlling the refrigeration equipment to operate according to the reference temperature; otherwise, controlling the refrigeration equipment to operate according to the auxiliary temperature. When the temperature difference value of the reference temperature and the auxiliary temperature is greater than the preset temperature difference threshold value, the article is shown to shield the reference temperature sensor, the reference temperature is not matched with the compartment temperature, and the refrigeration equipment is controlled to operate through the auxiliary temperature. Through setting up benchmark temperature sensor and auxiliary temperature sensor, can effectively avoid being sheltered from and lead to the refrigeration excessively because of benchmark temperature sensor by article.
Description
Technical Field
The invention relates to the field of refrigeration equipment, in particular to a control method of the refrigeration equipment.
Background
The interior of refrigeration equipment such as a refrigerator and a wine cabinet is usually provided with a temperature sensor for sensing the temperature of a compartment, and the refrigeration equipment controls the operation of the refrigeration equipment through the temperature detected by the temperature sensor so as to ensure that the temperature in the compartment is always in a proper range. However, if the temperature sensor is blocked or closely spaced by an item placed by the user in the compartment, the temperature detected by the temperature sensor is lower than the actual temperature of the compartment. If the volume of the article is large or the heat in the article is high, the temperature detected by the temperature sensor in a long time is not consistent with the actual temperature of the compartment, and at the moment, if the refrigeration equipment is controlled to operate according to the temperature detected by the temperature sensor, the refrigeration time of the refrigeration equipment is too long, the refrigeration equipment excessively refrigerates, so that the temperature of the compartment is too low, and the food in the compartment is frozen.
Disclosure of Invention
The invention aims to provide a control method of refrigeration equipment for preventing excessive refrigeration
In order to achieve one of the above objects, an embodiment of the present invention provides a method for controlling a refrigeration apparatus, including:
acquiring a reference temperature detected by a reference temperature sensor in a refrigeration equipment room;
acquiring auxiliary temperature detected by an auxiliary temperature sensor in a refrigeration equipment room;
acquiring a temperature difference value between the reference temperature and the auxiliary temperature;
judging whether the temperature difference value is less than or equal to a preset temperature difference threshold value or not;
if so, controlling the refrigeration equipment to operate according to the reference temperature;
otherwise, controlling the refrigeration equipment to operate according to the auxiliary temperature.
As a further improvement of an embodiment of the present invention, before the step of "determining whether the temperature difference value is less than or equal to a preset temperature difference threshold", the method further includes:
acquiring a reference temperature rise of the reference temperature in a first time, and acquiring an auxiliary temperature rise of the auxiliary temperature in the first time;
judging whether the reference temperature rise and the auxiliary temperature rise are larger than a preset abnormal temperature rise value or not;
if so, controlling the refrigeration equipment to operate for a preset first refrigeration time, and then closing the refrigeration equipment;
otherwise, executing the judgment to judge whether the temperature difference value is less than or equal to a preset temperature difference threshold value.
As a further improvement of an embodiment of the present invention, the method further includes, after "controlling the operation of the refrigeration equipment according to the auxiliary temperature":
judging whether the door body of the refrigeration equipment is opened or not;
otherwise, controlling the refrigeration equipment to operate according to the auxiliary temperature;
if so, acquiring a difference value of the auxiliary temperature before and after the door is opened, and judging whether the difference value is larger than a preset abnormal difference value or not;
if so, controlling the refrigeration equipment to operate for a preset second refrigeration time, and then closing the refrigeration equipment;
otherwise, controlling the refrigeration equipment to operate according to the auxiliary temperature.
As a further improvement of an embodiment of the present invention, the "judging whether the door of the refrigeration equipment is opened" specifically includes: and judging whether the door lamp is turned on or not.
As a further improvement of an embodiment of the present invention, after the "controlling the operation of the refrigeration equipment according to the auxiliary temperature", the method further includes:
and judging whether the temperature difference values are all smaller than or equal to a preset temperature difference threshold value within preset judging time, if so, executing the step of controlling the refrigeration equipment to operate according to the reference temperature, and otherwise, executing the step of controlling the refrigeration equipment to operate according to the auxiliary temperature.
As a further improvement of an embodiment of the present invention, after the "controlling the operation of the refrigeration equipment according to the auxiliary temperature", the method further includes:
judging whether the temperature difference value is less than or equal to a preset temperature difference threshold value in at least two time periods, if so, executing the step of controlling the refrigeration equipment to operate according to the reference temperature, and otherwise, executing the step of controlling the refrigeration equipment to operate according to the auxiliary temperature;
and preset interval time is arranged between adjacent time periods.
As a further improvement of an embodiment of the present invention, the method further includes, after the "controlling the operation of the refrigeration equipment according to the reference temperature" and the "controlling the operation of the refrigeration equipment according to the auxiliary temperature":
judging whether the running time of the refrigeration equipment is greater than a preset third refrigeration time or not;
otherwise, continuing to execute the operation of the refrigeration equipment according to the reference temperature or the operation of the refrigeration equipment according to the auxiliary temperature;
if so, the refrigeration equipment is shut down.
As a further improvement of an embodiment of the present invention, after maintaining the refrigeration equipment in the off state for a preset off time, the step of "determining whether the temperature difference value is less than or equal to a preset temperature difference threshold value" is performed; if so, controlling the refrigeration equipment to operate according to the reference temperature; otherwise, controlling the operation of the refrigeration equipment according to the auxiliary temperature;
wherein the running time of the refrigeration equipment is taThe shutdown time is k x ta+ m, k and m are preset coefficients, k being greater than 0.
As a further improvement of an embodiment of the present invention, the "controlling the operation of the refrigeration equipment according to the reference temperature" specifically includes:
judging whether the reference temperature is larger than the preset starting temperature, if so, starting the compressor and the evaporator fan, otherwise, maintaining the compressor and the evaporator fan in a closed state;
after the compressor and the evaporator fan are started, judging whether the reference temperature is lower than a preset closing temperature, if so, closing the compressor and the evaporator fan, otherwise, maintaining the compressor and the evaporator fan in an opening state;
the step of controlling the operation of the refrigeration equipment according to the auxiliary temperature is specifically as follows:
judging whether the auxiliary temperature is larger than the preset starting temperature, if so, starting a compressor and an evaporator fan, otherwise, maintaining the compressor and the evaporator fan in a closed state;
and after the compressor and the evaporator fan are started, judging whether the auxiliary temperature is lower than a preset closing temperature, if so, closing the compressor and the evaporator fan, otherwise, maintaining the compressor and the evaporator fan in an opening state.
As a further improvement of an embodiment of the present invention, the "controlling the operation of the refrigeration equipment according to the reference temperature" specifically includes:
judging whether the reference temperature is larger than the preset starting temperature, if so, opening an air door on the air duct, and otherwise, maintaining the air door in a closed state;
after the air door is opened, judging whether the reference temperature is lower than a preset closing temperature, if so, closing the air door, otherwise, maintaining the air door in an opening state;
the step of controlling the operation of the refrigeration equipment according to the auxiliary temperature is specifically as follows:
judging whether the auxiliary temperature is larger than the preset starting temperature, if so, opening an air door on the air duct, and otherwise, maintaining the air door in a closed state;
and after the air door is opened, judging whether the auxiliary temperature is lower than a preset closing temperature, if so, closing the air door, and otherwise, maintaining the air door in an opening state.
Compared with the prior art, the invention has the beneficial effects that: when the temperature difference value of the reference temperature and the auxiliary temperature is smaller than or equal to the preset temperature difference threshold value, the fact that the article does not shield the reference temperature sensor is indicated, the reference temperature is close to the room temperature, and the refrigeration equipment is controlled to run through the reference temperature. When the temperature difference value is greater than the preset temperature difference threshold value, the article is shown to shield the reference temperature sensor, the reference temperature is not matched with the compartment temperature, and the refrigeration equipment is controlled to operate through the auxiliary temperature. Therefore, by arranging the reference temperature sensor and the auxiliary temperature sensor, the phenomenon that the reference temperature sensor is blocked by articles to cause excessive refrigeration can be effectively avoided.
Drawings
Fig. 1 is a schematic configuration diagram of a control method of a refrigeration apparatus of the present invention;
fig. 2 is a schematic configuration diagram of the control method of the refrigeration apparatus according to the first embodiment of the present invention after step S6;
fig. 3 is a schematic configuration diagram of a control method of a refrigeration apparatus according to a second embodiment of the present invention after step S6;
fig. 4 is a schematic configuration diagram of a control method of a refrigeration apparatus according to a third embodiment of the present invention after step S6;
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
In the various drawings of the present invention, certain dimensions of structures or portions are exaggerated relative to other structures or portions for ease of illustration and, therefore, are used only to illustrate the basic structure of the subject matter of the present invention.
The invention provides a control method of a refrigeration device. The refrigeration equipment comprises a box body with a chamber, a reference temperature sensor and an auxiliary temperature sensor, wherein the reference temperature sensor and the auxiliary temperature sensor are arranged in the chamber.
The compartment is used for accommodating articles to be refrigerated, and the reference temperature sensor and the auxiliary temperature sensor are arranged at intervals. Preferably, the reference temperature sensor and the auxiliary temperature sensor are located on two diagonal lines of the compartment, so as to avoid a user from placing a large number of articles and blocking the reference temperature sensor and the auxiliary temperature sensor.
As shown in fig. 1, the control method includes the steps of:
and S1, acquiring the reference temperature detected by the reference temperature sensor in the refrigeration equipment room.
And S2, acquiring the auxiliary temperature detected by the auxiliary temperature sensor in the refrigeration equipment room.
And S3, acquiring the temperature difference value between the reference temperature and the auxiliary temperature.
The temperature difference is obtained by subtracting the auxiliary temperature from the reference temperature. The reference temperature is the temperature of the environment where the reference temperature sensor is located, which is sensed by the reference temperature sensor, and the auxiliary temperature is the temperature of the environment where the auxiliary temperature sensor is located, which is sensed by the auxiliary temperature sensor. Generally, in the case where the positions of the reference temperature sensor and the auxiliary temperature sensor are not changed, if the article is not put in the compartment, the range of the value of the temperature difference is small.
And S4, acquiring the reference temperature rise of the reference temperature in the first time, and acquiring the auxiliary temperature rise of the auxiliary temperature in the first time.
The first time is preset time, the reference temperature rise is a temperature rise value of the reference temperature in the first time, and the auxiliary temperature rise is a temperature rise value of the auxiliary temperature in the first time. When the refrigeration equipment stops refrigerating, the numerical values of the reference temperature rise and the auxiliary temperature rise are usually small and stable in fluctuation, when hotter articles are placed, the reference temperature rise and the auxiliary temperature rise are increased, and the closer the articles are to the reference temperature sensor and the auxiliary temperature sensor, the higher the numerical values of the increase of the reference temperature rise and the increase of the auxiliary temperature rise are.
And S5, judging whether the reference temperature rise and the auxiliary temperature rise are larger than a preset abnormal temperature rise value or not.
If the result of S5 is yes, then: and S6, controlling the refrigeration equipment to operate for a preset first refrigeration time, and then closing the refrigeration equipment.
If the result of S5 is yes, indicating that there are more articles placed, the reference temperature sensor and the auxiliary temperature sensor are both blocked, and if the operation of the cooling device is controlled according to the reference temperature or the auxiliary temperature detection, the cooling device may be excessively cooled. At the moment, the refrigeration equipment is controlled to operate according to the preset first refrigeration time, so that the refrigeration equipment can be prevented from being excessively refrigerated to the greatest extent. However, the temperature of the compartment cannot be precisely controlled by controlling the cooling time of the cooling device, and thus, if one of the reference temperature sensor or the auxiliary temperature sensor is not shielded by the article, this operation is not performed. Moreover, since the reference temperature sensor and the auxiliary temperature sensor are far apart, the result of S5 is less likely to be yes, which is set to prevent the refrigeration apparatus from overcooling in the event of an extreme situation where the number of articles is so large that both the reference temperature sensor and the auxiliary temperature sensor are blocked.
The result of S5 is otherwise executed; and S7, judging whether the temperature difference value is less than or equal to a preset temperature difference threshold value.
If the result of S7 is yes, then: and S8, controlling the operation of the refrigeration equipment according to the reference temperature.
The result of S7 is otherwise: and S9, controlling the operation of the refrigeration equipment according to the auxiliary temperature.
The temperature difference value is smaller than or equal to a preset temperature difference threshold value, the rising amplitude of the reference temperature relative to the auxiliary temperature is small, the condition that the object does not shield the reference temperature sensor is indicated, the reference temperature is close to the compartment temperature, the refrigeration equipment is controlled to run through the reference temperature, namely, whether the refrigeration equipment refrigerates or not is controlled, and the compartment temperature can be accurately controlled.
The temperature difference value is larger than a preset temperature difference threshold value, the rising range of the reference temperature relative to the auxiliary temperature is large, and it is indicated that the object covers the reference temperature sensor. At the moment, the auxiliary temperature detected by the auxiliary temperature sensor controls the refrigeration equipment to operate, namely, whether the refrigeration equipment refrigerates is controlled through the auxiliary temperature, and the temperature of the compartment can be accurately controlled.
Therefore, the operation of the refrigeration equipment is determined according to the reference temperature or the auxiliary temperature through the temperature difference value between the reference temperature and the auxiliary temperature, and the excessive refrigeration caused by the shielding of the temperature sensor can be effectively prevented. Meanwhile, the reason why whether the reference sensor is shielded or not is determined without using the temperature rise value of the reference temperature in a time range is that misjudgment may be caused by too long door opening time. If the temperature difference value change condition of the reference temperature and the auxiliary temperature is adopted, even if the door opening time is too long, the temperature difference value change is small due to the changed reference temperature and the auxiliary temperature, and therefore misjudgment caused by the fact that the door opening time is too long is avoided.
However, the step S3 may be executed after the result of step S5 is no and before step S7.
In an embodiment of the present invention, the step S8 specifically includes:
judging whether the reference temperature is larger than the preset starting temperature, if so, starting the compressor and the evaporator fan, otherwise, maintaining the compressor and the evaporator fan in a closed state;
after the compressor and the evaporator fan are started, judging whether the reference temperature is lower than a preset closing temperature, if so, closing the compressor and the evaporator fan, otherwise, maintaining the compressor and the evaporator fan in an opening state;
the step S9 specifically includes:
judging whether the auxiliary temperature is larger than the preset starting temperature, if so, starting a compressor and an evaporator fan, otherwise, maintaining the compressor and the evaporator fan in a closed state;
and after the compressor and the evaporator fan are started, judging whether the auxiliary temperature is lower than a preset closing temperature, if so, closing the compressor and the evaporator fan, otherwise, maintaining the compressor and the evaporator fan in an opening state.
In an embodiment of the present invention, the step S8 specifically includes:
judging whether the reference temperature is larger than the preset starting temperature, if so, opening an air door on the air duct, and otherwise, maintaining the air door in a closed state;
after the air door is opened, judging whether the reference temperature is lower than a preset closing temperature, if so, closing the air door, otherwise, maintaining the air door in an opening state;
the step S9 specifically includes:
judging whether the auxiliary temperature is larger than the preset starting temperature, if so, opening an air door on the air duct, and otherwise, maintaining the air door in a closed state;
and after the air door is opened, judging whether the auxiliary temperature is lower than a preset closing temperature, if so, closing the air door, and otherwise, maintaining the air door in an opening state.
As shown in fig. 2, in the first embodiment, after S9, the control method further includes: s10, judging whether the temperature difference values are all less than or equal to a preset temperature difference threshold value within preset judging time, if so, executing a step S8, otherwise, executing a step S9.
When the temperature difference value of the reference temperature and the auxiliary temperature is detected to rise within the judgment time until the temperature difference value exceeds the temperature difference threshold value, the temperature of the object sheltering from the reference temperature sensor is gradually reduced, and the inaccurate induction of the reference temperature sensor cannot be caused. Because article have been placed to benchmark temperature sensor below, the user can not shelter from benchmark temperature sensor if place article again, but probably shelters from supplementary temperature sensor. Therefore, when the temperature difference value is less than or equal to the preset temperature difference threshold value within the preset judgment time, the operation of the refrigeration equipment is controlled to be switched to the operation of the refrigeration equipment according to the reference temperature through the auxiliary temperature, and the situation that the temperature sensor is inaccurate in induction can not be caused even if the auxiliary temperature sensor is shielded by an article newly put into the refrigeration equipment by a user.
As shown in fig. 3, in the second embodiment, after S9, the control method further includes: s11, judging whether the temperature difference value is less than or equal to a preset temperature difference threshold value in at least two time periods, if so, executing a step S8, otherwise, executing a step S9; and preset interval time is arranged between adjacent time periods, and the duration of any time period is preset judgment time.
The time period starts to be calculated at step S9. For example, assuming that the interval time is one hour, the duration of the time period is one hour, the number of the time periods is three, and within the first hour, the third hour, and the fifth hour after the start of step S9, if the temperature difference values are all equal to or less than the temperature difference threshold value, it is determined to perform step S8. When the temperature difference value within a certain short time is larger than the temperature difference threshold value due to the fact that the position of the refrigeration equipment where the articles are placed is close to the reference temperature sensor, compared with the previous embodiment in which the temperature difference value within the judgment time is required to be smaller than or equal to the temperature difference threshold value, the embodiment still can switch from the step S9 to the step S8, and the accuracy is higher.
As shown in fig. 4, the third embodiment further includes, after step S9:
and S12, judging whether the door body of the refrigeration equipment is opened or not.
The step S9 is performed otherwise as a result of S12.
If the result of S12 is yes, then: s13, acquiring the difference value of the auxiliary temperature before and after the door is opened; s14, judging whether the difference value is larger than a preset abnormal difference value or not;
if the result of S14 is yes, then: s15, controlling the refrigeration equipment to run for a preset second refrigeration time; s16, closing the refrigeration equipment;
the step S9 is performed otherwise as a result of S14.
In this embodiment, if the door of the refrigeration equipment is opened, the user may take and place the article. Whether the auxiliary temperature sensor is shielded or not can be determined by detecting the difference value of the auxiliary temperature before and after the door is opened, namely judging whether the difference value is larger than a preset abnormal difference value or not. And if the temperature is not shielded, continuing to control the operation of the refrigeration equipment according to the auxiliary temperature. If the auxiliary temperature sensor is shielded, the reference temperature sensor and the auxiliary temperature sensor cannot accurately reflect the temperature condition of the compartment because the reference temperature sensor is also shielded, and the refrigeration equipment is prevented from being excessively refrigerated by controlling the running time of the refrigeration equipment.
Specifically, the step of judging whether the door body of the refrigeration equipment is opened includes: and judging whether the door lamp is turned on or not. Whether the door lamp is turned on may be determined by whether the light sensor or the circuit of the door lamp is turned on.
In the above three embodiments, the control method further includes, at step S8: s17, judging whether the running time of the refrigeration equipment is greater than a preset third refrigeration time or not;
the result of S17 is otherwise to continue executing the S8; if yes in S17, S18 is executed to turn off the cooling device.
The control method further includes, at step S9: s19, judging whether the running time of the refrigeration equipment is greater than a preset third refrigeration time or not;
the result of S19 is otherwise to continue executing the S9; if yes in S19, S20 is executed to turn off the cooling device.
By detecting the total operation time of the refrigeration equipment, the refrigeration equipment is further prevented from being excessively cooled due to the fact that the operation time of the refrigeration equipment is too long. In actual use, the time of the third cooling time may be set longer, and the purpose of setting S17 and S18, S19 and S20 is to prevent the refrigerating apparatus from being operated all the time when the reference temperature sensor or the auxiliary temperature sensor malfunctions, resulting in excessive cooling of the refrigerating apparatus.
Step S10 of the first embodiment, step S11 of the second embodiment, and step S12 of the third embodiment are all performed during the third cooling time. S10, S11 and S12 are all performed synchronously with S19. In the third embodiment, if the result of S12 is yes, S19 is stopped first, that is, the determination of stopping the cooling time of the cooling apparatus first is performed S13 and S14, if the result of S14 is no, S9 is returned, at this time, the determination steps S12 and S19 may be performed, and if the result of S14 is yes, the cooling apparatus is stopped, and S19 does not need to be performed.
Further, after steps S6, S16, S18, and S20, that is, after the refrigeration apparatus is maintained in the off state for the preset shutdown time, the steps S7, S8, and S9 are performed.
Wherein the running time of the refrigeration equipment is taThe shutdown time is k x ta+ m, k and m are preset coefficients, k being greater than 0. Therefore, the shutdown time of the refrigeration equipment is proportional to the operation time of the refrigeration equipment, so that the detection step S7 can be executed when the compartment temperature of the refrigeration equipment is high, and the refrigeration equipment is prevented from being operated when the compartment temperature is low.
The above-mentioned turning off the refrigeration equipment means stopping the refrigeration of the refrigeration equipment, and the preset turning-off time for maintaining the refrigeration equipment in the turning-off state means that the refrigeration equipment does not refrigerate in the turning-off time.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. A control method of a refrigeration apparatus, characterized by comprising the steps of:
acquiring a reference temperature detected by a reference temperature sensor in a refrigeration equipment room;
acquiring auxiliary temperature detected by an auxiliary temperature sensor in a refrigeration equipment room;
acquiring a temperature difference value between the reference temperature and the auxiliary temperature;
judging whether the temperature difference value is less than or equal to a preset temperature difference threshold value or not;
if so, controlling the refrigeration equipment to operate according to the reference temperature;
otherwise, controlling the refrigeration equipment to operate according to the auxiliary temperature.
2. The control method of a refrigeration apparatus according to claim 1, further comprising, before the "determining whether the temperature difference value is equal to or less than a preset temperature difference threshold value":
acquiring a reference temperature rise of the reference temperature in a first time, and acquiring an auxiliary temperature rise of the auxiliary temperature in the first time;
judging whether the reference temperature rise and the auxiliary temperature rise are larger than a preset abnormal temperature rise value or not;
if so, controlling the refrigeration equipment to operate for a preset first refrigeration time, and then closing the refrigeration equipment;
otherwise, executing the judgment to judge whether the temperature difference value is less than or equal to a preset temperature difference threshold value.
3. The control method of the refrigeration equipment according to claim 1, further comprising, after the step of controlling the operation of the refrigeration equipment according to the auxiliary temperature:
judging whether the door body of the refrigeration equipment is opened or not;
otherwise, controlling the refrigeration equipment to operate according to the auxiliary temperature;
if so, acquiring a difference value of the auxiliary temperature before and after the door is opened, and judging whether the difference value is larger than a preset abnormal difference value or not;
if so, controlling the refrigeration equipment to operate for a preset second refrigeration time, and then closing the refrigeration equipment;
otherwise, controlling the refrigeration equipment to operate according to the auxiliary temperature.
4. The control method of the refrigeration equipment according to claim 3, wherein the step of judging whether the door body of the refrigeration equipment is opened specifically comprises the following steps: and judging whether the door lamp is turned on or not.
5. The control method of a refrigeration apparatus according to claim 1, further comprising, after the "controlling operation of a refrigeration apparatus according to the auxiliary temperature":
and judging whether the temperature difference values are all smaller than or equal to a preset temperature difference threshold value within preset judging time, if so, executing the step of controlling the refrigeration equipment to operate according to the reference temperature, and otherwise, executing the step of controlling the refrigeration equipment to operate according to the auxiliary temperature.
6. The control method of a refrigeration apparatus according to claim 1, further comprising, after the "controlling operation of a refrigeration apparatus according to the auxiliary temperature":
judging whether the temperature difference value is less than or equal to a preset temperature difference threshold value in at least two time periods, if so, executing the step of controlling the refrigeration equipment to operate according to the reference temperature, and otherwise, executing the step of controlling the refrigeration equipment to operate according to the auxiliary temperature;
and preset interval time is arranged between adjacent time periods.
7. The control method of a refrigeration apparatus according to claim 1, further comprising, after the "controlling the operation of the refrigeration apparatus according to the reference temperature" and the "controlling the operation of the refrigeration apparatus according to the auxiliary temperature":
judging whether the running time of the refrigeration equipment is greater than a preset third refrigeration time or not;
otherwise, continuing to execute the operation of the refrigeration equipment according to the reference temperature or the operation of the refrigeration equipment according to the auxiliary temperature;
if so, the refrigeration equipment is shut down.
8. A control method for a refrigeration apparatus according to any one of claims 2, 3 and 7, wherein said "determining whether the temperature difference value is less than or equal to a preset temperature difference threshold value" is performed after a preset shutdown time for the refrigeration apparatus to be in a shutdown state is maintained; if so, controlling the refrigeration equipment to operate according to the reference temperature; otherwise, controlling the operation of the refrigeration equipment according to the auxiliary temperature;
wherein the running time of the refrigeration equipment is taThe shutdown time is k x ta+ m, k and m are preset coefficients, k being greater than 0.
9. The control method of the refrigeration equipment according to claim 1, wherein the "controlling the operation of the refrigeration equipment according to the reference temperature" is specifically:
judging whether the reference temperature is larger than the preset starting temperature, if so, starting the compressor and the evaporator fan, otherwise, maintaining the compressor and the evaporator fan in a closed state;
after the compressor and the evaporator fan are started, judging whether the reference temperature is lower than a preset closing temperature, if so, closing the compressor and the evaporator fan, otherwise, maintaining the compressor and the evaporator fan in an opening state;
the step of controlling the operation of the refrigeration equipment according to the auxiliary temperature is specifically as follows:
judging whether the auxiliary temperature is larger than the preset starting temperature, if so, starting a compressor and an evaporator fan, otherwise, maintaining the compressor and the evaporator fan in a closed state;
and after the compressor and the evaporator fan are started, judging whether the auxiliary temperature is lower than a preset closing temperature, if so, closing the compressor and the evaporator fan, otherwise, maintaining the compressor and the evaporator fan in an opening state.
10. The control method of the refrigeration equipment according to claim 1, wherein the "controlling the operation of the refrigeration equipment according to the reference temperature" is specifically:
judging whether the reference temperature is larger than the preset starting temperature, if so, opening an air door on the air duct, and otherwise, maintaining the air door in a closed state;
after the air door is opened, judging whether the reference temperature is lower than a preset closing temperature, if so, closing the air door, otherwise, maintaining the air door in an opening state;
the step of controlling the operation of the refrigeration equipment according to the auxiliary temperature is specifically as follows:
judging whether the auxiliary temperature is larger than the preset starting temperature, if so, opening an air door on the air duct, and otherwise, maintaining the air door in a closed state;
and after the air door is opened, judging whether the auxiliary temperature is lower than a preset closing temperature, if so, closing the air door, and otherwise, maintaining the air door in an opening state.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023160785A1 (en) * | 2022-02-24 | 2023-08-31 | Electrolux Appliances Aktiebolag | Space efficient refrigerator |
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| KR100342258B1 (en) * | 2000-07-04 | 2002-07-02 | 윤종용 | kimchi Refrigerator and Control Method thereof |
| CN103398542A (en) * | 2013-08-15 | 2013-11-20 | 合肥美的电冰箱有限公司 | Refrigerator and refrigeration system adopting same |
| US20180313596A1 (en) * | 2017-04-28 | 2018-11-01 | Lg Electronics Inc. | Refrigerator and method for controlling the same |
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