CN110425792B - Defrosting control method of refrigerator, storage medium and refrigerator - Google Patents
Defrosting control method of refrigerator, storage medium and refrigerator Download PDFInfo
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- CN110425792B CN110425792B CN201910719026.4A CN201910719026A CN110425792B CN 110425792 B CN110425792 B CN 110425792B CN 201910719026 A CN201910719026 A CN 201910719026A CN 110425792 B CN110425792 B CN 110425792B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
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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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
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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
- F25D29/003—Arrangement or mounting of control or safety devices for movable 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
The application belongs to the technical field of refrigerators, and particularly relates to a defrosting control method of a refrigerator, a storage medium and a refrigerator, wherein the defrosting control method of the refrigerator comprises the following steps: acquiring the defrosting voltage of the refrigerator at this time; comparing the current defrosting voltage with a rated voltage, and determining that the current defrosting voltage is a low voltage or a normal voltage; if the defrosting voltage is normal voltage, controlling the refrigerator to defrost at a rated defrosting exit temperature; and if the current defrosting voltage is low voltage, controlling the refrigerator to defrost at a low-pressure defrosting exit temperature, wherein the low-pressure defrosting exit temperature is higher than the rated defrosting exit temperature. The defrosting control method of the embodiment of the application is under the low-voltage condition, the low-voltage defrosting exit temperature is higher than the rated defrosting exit temperature by improving, so that defrosting is complete, extra equipment does not need to be added by improving the defrosting exit temperature, operation is easy, cost is low, and intelligence is strong.
Description
Technical Field
The application belongs to the technical field of refrigerators, and particularly relates to a defrosting control method of a refrigerator, a storage medium and a refrigerator.
Background
When the current air-cooled refrigerator defrosting system design, whether can change the frost completely under normal voltage is the main consideration, however the lower condition of voltage often appears in the household power consumption, and defrosting heater power reduces during the low-voltage, reduces the radiation efficiency of bottom water collector and drain outlet department, continues to control according to conventional defrosting, easily leads to water collector icing or the phenomenon of drain outlet department ice-blocking to take place.
Disclosure of Invention
The technical problem that this application mainly solved is that the refrigerator defrosting is incomplete under the low voltage condition, easily at water collector and outlet accumulated ice to a defrosting control method of refrigerator is provided, can defrost under normal voltage and low voltage condition, difficult accumulated ice.
In order to solve the technical problem, the application adopts a technical scheme that: provided is a defrosting control method of a refrigerator, including:
acquiring the defrosting voltage of the refrigerator;
comparing the current defrosting voltage with the rated voltage, and determining that the current defrosting voltage is low voltage or normal voltage;
if the defrosting voltage is normal voltage, controlling the refrigerator to defrost at the rated defrosting exit temperature;
and if the defrosting voltage is low voltage, controlling the refrigerator to defrost at a low-pressure defrosting exit temperature, wherein the low-pressure defrosting exit temperature is higher than the rated defrosting exit temperature.
Preferably, if the defrosting voltage is low, the defrosting of the refrigerator is controlled by the low-voltage defrosting exit temperature, and the method comprises the following steps:
determining the ratio of the defrosting voltage to the rated voltage;
calculating the low-pressure defrosting exit temperature as the sum of the rated defrosting exit temperature and multiple unit exit temperatures, wherein the multiple is in negative correlation with the ratio;
and controlling the refrigerator to defrost at the low-pressure defrosting exit temperature.
Preferably, if the defrosting voltage is low voltage, the defrosting of the refrigerator is controlled by the low-voltage defrosting exit temperature, and then the method comprises the following steps:
calculating the preset low-pressure defrosting time corresponding to the current defrosting voltage;
comparing the low-pressure defrosting time with the preset low-pressure defrosting time;
and if the current low-pressure defrosting time is less than the preset low-pressure defrosting time, reducing the running time of the compressor between the end of the current low-pressure defrosting and the beginning of the next defrosting.
Further, if the current low-pressure defrosting time is less than the preset low-pressure defrosting time, the running time of the compressor between the end of the current low-pressure defrosting and the beginning of the next defrosting is shortened, and the method comprises the following steps:
and determining the difference value between the current low-pressure defrosting time and the preset low-pressure defrosting time, wherein the reduction time of the running time of the compressor is positively correlated with the difference value.
Further, if the defrosting voltage is normal voltage, the refrigerator defrosting is controlled by the rated defrosting exit temperature, and the method comprises the following steps:
and recording and storing the information of the rated running state of the refrigerator between the end of the last defrosting and the start of the rated defrosting, and the rated defrosting time.
Preferably, the calculating of the predetermined low-pressure defrosting time corresponding to the defrosting voltage includes:
recording the low-pressure running state information of the refrigerator between the end of last defrosting and the beginning of the low-pressure defrosting, and determining the rated running state information matched with the low-pressure running state information;
determining rated defrosting time corresponding to the matched rated running state information;
and determining the preset low-pressure defrosting time according to the rated defrosting time.
Further, the step of determining the preset low-pressure defrosting time according to the rated defrosting time comprises the following steps:
determining the ratio of the temperature rise time of the current defrosting voltage to the temperature rise time of the rated voltage according to the preset corresponding relation between the defrosting voltage and the temperature rise time, wherein the temperature rise time is the time required for the defrosting drainage to rise to the same temperature;
and calculating the product of the rated defrosting time and the ratio as the preset low-pressure defrosting time.
In order to solve the above technical problem, another technical solution adopted by the present application is: there is provided a computer storage medium having stored therein a computer program for being executed to implement a defrosting control method of an upper refrigerator.
The application further includes a third technical solution, where the refrigerator includes a memory and a processor, where the memory stores a computer program, and the processor is configured to execute the computer program to implement the steps of the method.
The beneficial effect of this application is: different from the prior art, the defrosting control method of the embodiment of the application has the advantages that under the condition of low voltage, the low-pressure defrosting exit temperature is increased to be higher than the rated defrosting exit temperature, so that defrosting is complete, ice accumulation and ice accumulation do not exist in the water pan and the water outlet, and the defrosting exit temperature is increased without adding extra equipment, so that the defrosting control method is easy to operate and low in cost.
Drawings
FIG. 1 is a schematic flow chart of a defrosting control method according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of another defrosting control method according to an embodiment of the present application;
FIG. 3 is a schematic flow chart illustrating a process of calculating a predetermined low-voltage defrosting time corresponding to the current defrosting voltage according to the embodiment of the application;
FIG. 4 is a schematic diagram of a computer storage medium structure according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a refrigerator according to an embodiment of the present application.
Detailed Description
In order to make the purpose, technical solution and effect of the present application clearer and clearer, the present application is further described in detail below with reference to the accompanying drawings and examples.
After the air-cooled refrigerator operates for a period of time, the evaporator of the air-cooled refrigerator can be frosted, and the operating efficiency of the air-cooled refrigerator is influenced, so that the refrigerator needs to be defrosted after being refrigerated for a period of time, ice accumulation and incomplete defrosting are easily caused on a water receiving tray and a water outlet of the refrigerator under the condition of voltage defrosting, and the embodiment provides the defrosting control method of the refrigerator on the basis of the condition.
A defrosting control method of a refrigerator of the present embodiment as shown in fig. 1 includes:
s110: and acquiring the defrosting voltage of the refrigerator.
Specifically, the defrosting voltage can be a refrigerator power supply voltage, and the refrigerator power supply voltage is the defrosting voltage only when the defrosting is performed; when the defrosting condition is met, the power supply voltage of the refrigerator is obtained, and the defrosting condition is generally when various parameters such as the door opening and closing times of the refrigerator, the ambient temperature, the accumulated running time of the compressor and the like preset by the system reach the preset conditions of the system. In other embodiments, the defrosting condition may be that the surface temperature of the evaporator is reduced to a certain degree, or the surface of the evaporator is frosted to a certain thickness. The condition that the voltage of the electricity consumed by a household user is unstable due to the fact that too many people consume electricity in a certain time period easily exists in household electricity, and when the defrosting condition is met, the obtained refrigerator power supply voltage is the defrosting voltage at this time; the obtained refrigerator power supply voltage can be detected through a voltage testing system arranged in the refrigerator, and detection information is obtained, namely the refrigerator power supply voltage.
S121: and comparing the current defrosting voltage with the rated voltage to determine whether the current defrosting voltage is a normal voltage or a low voltage.
Specifically, in this embodiment, if the voltage is the rated voltage, or fluctuates within a normal range allowed by the rated voltage, the voltage is the normal voltage, for example, when the defrosting voltage may be the rated voltage ± 5%, the voltage is the normal voltage; of course, in other embodiments, the fluctuation range of the normal voltage may be set as appropriate.
When the voltage is lower than the normal voltage, the voltage is low, and specifically, in the present embodiment, the voltage is lower than 95% of the rated voltage, the voltage is low.
If the voltage is normal, step S131 is executed: and controlling the refrigerator to defrost at the rated defrosting exit temperature. When the voltage is a rated voltage, acquiring a defrosting exit temperature of the refrigerator when various parameters such as the door opening and closing times of the refrigerator, the ambient temperature and the accumulated running time of a compressor reach a preset condition of the system, and finishing defrosting of the refrigerator when the temperature of an evaporator of the refrigerator reaches the defrosting exit temperature; the defrosting temperature at this time is the rated defrosting exit temperature. In other embodiments, when the voltage is the rated voltage, when the surface temperature of the evaporator is reduced to a certain degree, or when the surface of the evaporator frosts to a certain thickness, the defrosting is finished, and the temperature when the defrosting is finished is the rated defrosting exit temperature.
If yes, go to step S132: and controlling the refrigerator to defrost at a low-pressure defrosting exit temperature, wherein the low-pressure defrosting exit temperature is higher than the rated defrosting exit temperature.
The above is the core technical content of the embodiment of the application, the current defrosting voltage is obtained, whether the current defrosting voltage is a normal voltage or a low voltage is judged and determined, and if the current defrosting voltage is the low voltage, the working time of the defrosting heater is increased by increasing the low-voltage defrosting exit temperature to be higher than the rated defrosting exit temperature, so that the defrosting condition is improved, and defrosting is completed as far as possible; under the condition of normal voltage, controlling the refrigerator to defrost at a rated defrosting exit temperature, and normally defrosting; through the defrosting method provided by the embodiment of the application, the defrosting period can be intelligently adjusted, the defrosting problem under the low-voltage condition can be solved, the defrosting is more accurate and more intelligent, and the operation efficiency of the refrigerator is improved.
Further, as shown in fig. 2, if the defrosting voltage is low, step S132: the method for controlling the defrosting of the refrigerator at the low-pressure defrosting exit temperature specifically comprises the following steps:
s1321: and determining the ratio of the defrosting voltage to the rated voltage. Because the defrosting time and the defrosting exit temperature required by the low voltage of different degrees are different, the low voltage degree of the current defrosting voltage can be determined by determining the ratio of the current defrosting voltage to the rated voltage.
S1322: and calculating the low-pressure defrosting exit temperature as the sum of the rated defrosting exit temperature and multiple unit exit temperatures, wherein the multiple is in negative correlation with the ratio. The low-pressure defrosting exit temperature is that when the defrosting condition is met, namely the door opening and closing times, the environment temperature and the accumulated running time of the compressor reach the condition preset by the system, when the evaporator temperature of the refrigerator reaches the defrosting exit temperature, the defrosting of the refrigerator is finished, and the corresponding defrosting exit temperature is the low-pressure defrosting exit temperature. Under the low-pressure condition, the low-pressure defrosting exit temperature is higher than the defrosting exit temperature of the normal voltage, and the lower the voltage is, the more the defrosting exit temperature needs to be increased.
S1323: and controlling the refrigerator to defrost at the low-pressure defrosting exit temperature.
Specifically, in the embodiment, the low-pressure defrosting exit temperature is as shown in table 1, the ratio of the current defrosting voltage to the rated voltage is determined, and if the ratio is within the range of 92.5 ± 2.5%, the low-pressure defrosting exit temperature is the rated defrosting exit temperature T0 plus 1 ℃; if the ratio of the defrosting voltage to the rated voltage is in the range of 87.5 +/-2.5%, the low-pressure defrosting exit temperature is increased by 2 ℃ relative to the rated defrosting exit temperature; if the ratio of the defrosting voltage to the rated voltage is within the range of 82.5 +/-2.5%, the low-pressure defrosting exit temperature is increased by 3 ℃ relative to the rated defrosting exit temperature; if the ratio of the defrosting voltage to the rated voltage is within the range of 75 +/-5%, the low-pressure defrosting exit temperature is increased by 4 ℃ relative to the rated defrosting exit temperature, so that the low-pressure defrosting exit temperature can be determined; in other embodiments, the degree of increase in the low pressure defrost exit temperature may be other parameters. In this implementation, when confirming that the low pressure is low to a certain scope, the low pressure defrosting withdraws from the temperature and improves the uniform temperature, and low pressure is low to different scopes, and the low pressure defrosting withdraws from the temperature and corresponds and improve different temperatures for the low pressure defrosting withdraws from the temperature and carries out the regulation of different degrees according to the defrosting voltage that actually obtains, avoids prescribing in a certain specific value, and the not strong problem of adaptability that causes. The defrosting exit temperature improving degree of the embodiment of the application can be determined according to the specific condition of low pressure, and the adaptability of the refrigerator evaporator to defrosting under different conditions is improved.
Table 1: low defrosting exit temperature.
Defrosting is carried out under the condition of low pressure, although the defrosting performance of the refrigerator can be improved and improved by increasing the defrosting exit temperature, the defrosting exit temperature is increased by a numerical value shown in table 1, the low-pressure defrosting exit temperature is a rule determined and counted according to a plurality of times of experiments, therefore, under the actual low-pressure defrosting condition, the low-pressure defrosting exit temperature in table 1 is adopted, the defrosting condition is greatly improved, when defrosting is finished, defrosting is complete, and the phenomenon that partial defrosting is not complete can also occur. Therefore, in this embodiment, as shown in fig. 2, after step S1323 is executed, the method further includes:
s140: and calculating the preset low-pressure defrosting time corresponding to the defrosting voltage.
The preset low-pressure defrosting time is measured under the working condition of a laboratory, and the time required for the water collecting tray and the water outlet to rise to the same temperature under different voltages is used as basic data. When the temperature is raised to the same temperature, the temperature can make the water receiving tray and the water outlet completely iced. Namely, the corresponding temperature rise time is the preset defrosting time under the rated voltage and the low voltage with different degrees. And the temperature rise time under low pressure is the preset low-pressure defrosting time.
S150: and comparing the low-pressure defrosting time with the preset low-pressure defrosting time, and judging whether the low-pressure defrosting time is less than the preset low-pressure defrosting time.
When the low-pressure defrosting is started until the defrosting temperature reaches the low-pressure defrosting temperature, the defrosting is finished, and the required actual running time is the low-pressure defrosting time. Under the same temperature, the local low-pressure defrosting time and the preset low-pressure defrosting time are different, and whether the current defrosting is complete or not can be judged by comparing the current low-pressure defrosting time with the preset low-pressure defrosting time. If the low-pressure defrosting time is less than the preset low-pressure defrosting time, the low-pressure defrosting is not complete. If the low-pressure defrosting time is more than or equal to the preset low-pressure defrosting time, the low-pressure defrosting is complete.
If yes, go to step S160: and the running time of the compressor between the end of the low-pressure defrosting and the beginning of the next defrosting is shortened. After the low-pressure defrosting is finished, after a certain time, the compressor is started again for refrigeration, the compressor runs, the temperature in the refrigerator body and the temperature of the evaporator are reduced, the evaporator can absorb moisture in the refrigerator body in the refrigeration process to form frost, the frost is attached to the evaporator, and the longer the running time of the compressor is, the more the frost is attached to the evaporator; after the last defrosting is finished, partial residual frost still exists, and if the amount of frost exceeds a preset value according to the normal operation time of the compressor, the difficulty of next defrosting is increased easily. By reducing the running time of the compressor, the accumulated frost amount in the refrigerator next time can be reduced, and the time interval between two times of defrosting can be reduced, so that the next time of defrosting is facilitated.
If not, go to step S170: the running time of the compressor between the end of the low-pressure defrosting and the beginning of the next defrosting is normal. If the low-pressure defrosting is finished at this time, the defrosting is complete, and the next defrosting is not influenced, so the running time of the compressor after the low-pressure defrosting is finished at this time is still according to the running time of the compressor under the rated voltage, so that the next defrosting control is facilitated.
In this embodiment, further by comparing the current low-pressure defrosting time with the preset low-pressure defrosting time, if the current low-pressure defrosting time is less than the preset low-pressure defrosting time, it is indicated that the current low-pressure defrosting is not complete, and frost or ice is not completely finished, and the time interval between two times of defrosting can be shortened by reducing the running time of the compressor in the next period, so that the next defrosting is relatively easy to deal with the defrosting problem under the low-voltage condition.
In this embodiment, the calculation manner or the setting manner of the compressor operation time in step S160 includes:
and determining the difference value between the current low-pressure defrosting time and the preset low-pressure defrosting time, wherein the reduction time of the running time of the compressor is positively correlated with the difference value.
In this embodiment, the operation time of the compressor is reduced, and the specific reduced time is related to the difference between the current low-pressure defrosting time and the preset low-pressure defrosting time. As shown in table 2: the difference value between the current low-pressure defrosting time and the preset low-pressure defrosting time is delta t, and when the temperature is more than or equal to 0 and less than 5 ℃, the running time of the compressor between the end of the current low-pressure defrosting and the beginning of the next defrosting is shortened by 2 hours on the basis of the running time under the normal condition of rated voltage; when the temperature is more than or equal to 5 ℃ and delta t is less than 10 ℃, the running time of the compressor is shortened by 4 hours; when the temperature is more than or equal to 10 ℃ and delta t is less than 15 ℃, the running time of the compressor is shortened by 7 hours; when the temperature is more than or equal to 15 ℃ and delta t is less than 20 ℃, the running time of the compressor is shortened by 10 hours; the compressor running time in this embodiment may be the accumulated running time of the compressor, or may be the continuous time of the continuous running of the compressor. The above is only the specific time reduction situation of the compressor in this embodiment, in other embodiments, the specific time reduction situation of the compressor may also be changed, but the accumulated running time of the compressor should be kept to be greater than or equal to 6 hours, so as to ensure the refrigeration situation of the refrigerator and avoid the phenomenon that food in the refrigerator is damaged due to overhigh temperature of the refrigerator.
Table 2: the difference value between the current low-pressure defrosting time and the preset low-pressure defrosting time is related to the running time reduction time of the compressor.
| Delta t ═ min | Reduced time (h) for compressor running time |
| 0≤△t＜5 | 2 |
| 5≤△t＜10 | 4 |
| 10≤△t＜15 | 7 |
| 15≤△t＜20 | 10 |
As shown in fig. 2, step S131: the refrigerator defrosting is controlled at the rated defrosting exit temperature, and the refrigerator defrosting method further comprises the following steps:
s1311: and recording and storing the information of the rated running state of the refrigerator between the end of the last defrosting and the start of the rated defrosting, and the rated defrosting time. The rated operation state information includes the door opening and closing times, the ambient temperature and the compressor operation time. The relevant parameters in the normal voltage defrosting period (from the end of the last defrosting to the end of the next defrosting) are collected and stored. The refrigerator is different at the operational aspect of different user's families, for example the difference of the ambient temperature in the frequency, different areas that the user used the refrigerator, and it all can influence the operation of low pressure defrosting, through the running state information under the record normal voltage, provides relevant parameter for the operation of low pressure defrosting for refrigerator defrosting can be adjusted according to different environment on every side, and it is more intelligent to change the frost, accords with user's demand more.
The times of opening and closing the door of the refrigerator can influence the defrosting period of the refrigerator, and the defrosting period is shorter as the opening and closing times are more under general conditions; the running time and the ambient temperature of the compressor can influence the defrosting period, and the quantity of relevant parameters stored in the database can be increased by counting the rated running body information of the refrigerator, namely the rated defrosting time, so that reference data can be provided for determining the preset low-voltage defrosting time.
Specifically, as shown in fig. 3, the step S140 calculates a predetermined low-voltage defrosting time corresponding to the defrosting voltage, and includes:
s141: recording the low-pressure running state information of the refrigerator between the end of last defrosting and the beginning of the low-pressure defrosting, wherein the running state information specifically comprises the door opening and closing times, the ambient temperature and the running time of a compressor, and determining the rated running state information matched with the low-pressure running state information. In this embodiment, the rated operation state information stored in step S1311, and the rated operation state information and the corresponding rated defrosting time are used to establish a database, and the rated operation state information most similar to the low-voltage operation state information is searched for.
S142: and determining the rated defrosting time ta corresponding to the matched rated operation state information, namely directly acquiring the rated defrosting time ta corresponding to the rated operation state information from the database.
S143: and determining the preset low-pressure defrosting time according to the rated defrosting time.
The step S143 specifically includes determining a ratio of the temperature rise time of the current defrosting voltage to the temperature rise time of the rated voltage according to a preset corresponding relationship between the defrosting voltage and the temperature rise time, where the temperature rise time is a time required for the defrosting drain to rise to the same temperature.
And calculating the product of the rated defrosting time and the ratio as the preset low-pressure defrosting time.
Table 3 preset correspondence of defrosting voltage and heating time.
| Voltage of | Heating time (t0n) |
| Rated voltage | t01 |
| 92.5 +/-2.5% rated voltage | t02 |
| 87.5 +/-2.5% rated voltage | t03 |
| … | … |
Specifically, the preset corresponding relationship between the defrosting voltage and the temperature rise time is measured under the laboratory working condition, and a time schedule required for the water pan and the water outlet to rise to the same temperature under different electrified voltages is written in the program as basic data. For example, in the present embodiment, the preset corresponding relationship between the defrosting voltage and the temperature rise time is shown in table 3, the temperature rise time at the rated voltage is t01, and when the defrosting voltage is 92.5 ± 2.5% of the rated voltage, the temperature rise time is t 02; when the defrosting voltage is 87.5 +/-2.5% of rated voltage, the temperature rise time is t 03; the low-pressure temperature rise time is represented by t0n, and n is more than or equal to 2.
The preset low-voltage defrosting time is t, t is ta x (t0n/t01), wherein ta is rated defrosting time, t0n is low-voltage temperature rising time, and t01 is rated voltage temperature rising time. Therefore, the preset low-voltage defrosting time can be calculated, so that whether the current low-voltage defrosting time is less than the preset low-voltage defrosting time or not can be judged, and whether the running time of the compressor in the next period needs to be shortened or not can be determined.
As shown in fig. 4, the present embodiment further includes a computer storage medium, the storage medium 10 stores a computer program 11 therein, and the computer program 11 is used to be executed to implement the defrosting control method of the refrigerator.
As shown in fig. 5, the present embodiment further includes a refrigerator 20, the refrigerator 20 includes a memory 21 and a processor 22, the memory 21 stores a computer program, and the processor 22 is configured to execute the computer program to implement the steps of the defrosting control method.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (9)
1. A defrosting control method of a refrigerator is characterized by comprising the following steps:
acquiring the defrosting voltage of the refrigerator at this time;
comparing the current defrosting voltage with a rated voltage, and determining that the current defrosting voltage is a low voltage or a normal voltage;
if the defrosting voltage is normal voltage, controlling the refrigerator to defrost at a rated defrosting exit temperature;
if the current defrosting voltage is low voltage, controlling the refrigerator to defrost at a low-pressure defrosting exit temperature, wherein the low-pressure defrosting exit temperature is higher than the rated defrosting exit temperature;
wherein, the control of the refrigerator defrosting with the low-pressure defrosting exit temperature comprises:
determining the ratio of the defrosting voltage to the rated voltage;
calculating the low-pressure defrosting exit temperature as the sum of the rated defrosting exit temperature and a multiple of unit exit temperatures, wherein the multiple is inversely related to the ratio;
and controlling the refrigerator to defrost at the low-pressure defrosting exit temperature.
2. The defrosting control method of a refrigerator according to claim 1, wherein if the present defrosting voltage is a low voltage, the defrosting of the refrigerator is controlled at a low defrosting exit temperature, and then the method comprises:
calculating the preset low-pressure defrosting time corresponding to the current defrosting voltage;
comparing the low-pressure defrosting time with the preset low-pressure defrosting time;
and if the current low-pressure defrosting time is less than the preset low-pressure defrosting time, reducing the running time of the compressor between the end of the current low-pressure defrosting and the start of the next defrosting.
3. The defrosting control method of a refrigerator according to claim 2, wherein the reducing a compressor operation time from the end of the current low pressure defrosting to the start of the next defrosting if the current low pressure defrosting time is less than the predetermined low pressure defrosting time comprises:
and determining the difference value between the current low-pressure defrosting time and the preset low-pressure defrosting time, wherein the reduction time of the running time of the compressor is positively correlated with the difference value.
4. The defrosting control method of a refrigerator according to claim 2, wherein if the present defrosting voltage is a normal voltage, controlling the refrigerator to defrost at a rated defrosting exit temperature includes:
and recording and storing the information of the rated running state of the refrigerator between the end of the last defrosting and the start of the rated defrosting, and the rated defrosting time.
5. The defrosting control method of a refrigerator according to claim 4, wherein the calculating of the predetermined low-voltage defrosting time corresponding to the defrosting voltage includes:
recording the low-pressure running state information of the refrigerator between the end of last defrosting and the beginning of the low-pressure defrosting, and determining the rated running state information matched with the low-pressure running state information;
determining rated defrosting time corresponding to the matched rated running state information;
and determining the preset low-pressure defrosting time according to the rated defrosting time.
6. The defrosting control method of a refrigerator according to claim 5, wherein the determining the predetermined low-pressure defrosting time according to the rated defrosting time includes:
determining the ratio of the temperature rise time of the current defrosting voltage to the temperature rise time of the rated voltage according to the preset corresponding relation between the defrosting voltage and the temperature rise time, wherein the temperature rise time is the time required for the defrosting drainage to rise to the same temperature;
and calculating the product of the rated defrosting time and the ratio as the preset low-pressure defrosting time.
7. The defrosting control method of a refrigerator of claim 4 wherein the operation state information includes a door opening and closing number, an ambient temperature and a compressor operation time.
8. A computer storage medium characterized in that the storage medium stores therein a computer program for being executed to implement the defrosting control method of the refrigerator of any one of claims 1 to 7.
9. A refrigerator, characterized in that the refrigerator comprises a memory in which a computer program is stored and a processor for executing the computer program to carry out the steps of the method according to any one of claims 1-7.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001272156A (en) * | 2000-03-29 | 2001-10-05 | Fujitsu General Ltd | Method for controlling electric refrigerator |
| CN1467463A (en) * | 2002-06-25 | 2004-01-14 | 三洋电机株式会社 | Air-conditioning plant and defrosting operation method |
| CN1184443C (en) * | 2001-06-29 | 2005-01-12 | 三洋电机株式会社 | Air conditioning device |
| CN102384614A (en) * | 2010-09-02 | 2012-03-21 | 三星电子株式会社 | Cooling system and defrosting control method thereof |
| CN106440585A (en) * | 2016-08-09 | 2017-02-22 | 山东绿特新能源有限公司 | Intelligent comprehensive defrosting device for air source heat pump unit and implementation method of intelligent comprehensive defrosting device |
| CN106796070A (en) * | 2014-08-29 | 2017-05-31 | 艾默生环境优化技术有限公司 | Variable speed compressor control with acoustic control defrosting mode |
| CN108007050A (en) * | 2017-11-21 | 2018-05-08 | 合肥美的电冰箱有限公司 | Defrosting control method, refrigerator and the computer-readable recording medium of refrigerator |
| CN109883127A (en) * | 2019-03-06 | 2019-06-14 | 广东瑞星新能源科技有限公司 | A kind of intelligent defrosting control method |
-
2019
- 2019-08-05 CN CN201910719026.4A patent/CN110425792B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001272156A (en) * | 2000-03-29 | 2001-10-05 | Fujitsu General Ltd | Method for controlling electric refrigerator |
| CN1184443C (en) * | 2001-06-29 | 2005-01-12 | 三洋电机株式会社 | Air conditioning device |
| CN1467463A (en) * | 2002-06-25 | 2004-01-14 | 三洋电机株式会社 | Air-conditioning plant and defrosting operation method |
| CN102384614A (en) * | 2010-09-02 | 2012-03-21 | 三星电子株式会社 | Cooling system and defrosting control method thereof |
| CN106796070A (en) * | 2014-08-29 | 2017-05-31 | 艾默生环境优化技术有限公司 | Variable speed compressor control with acoustic control defrosting mode |
| CN106440585A (en) * | 2016-08-09 | 2017-02-22 | 山东绿特新能源有限公司 | Intelligent comprehensive defrosting device for air source heat pump unit and implementation method of intelligent comprehensive defrosting device |
| CN108007050A (en) * | 2017-11-21 | 2018-05-08 | 合肥美的电冰箱有限公司 | Defrosting control method, refrigerator and the computer-readable recording medium of refrigerator |
| CN109883127A (en) * | 2019-03-06 | 2019-06-14 | 广东瑞星新能源科技有限公司 | A kind of intelligent defrosting control method |
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