CN108826822B - Refrigerator control method and refrigerator - Google Patents
Refrigerator control method and refrigerator Download PDFInfo
- Publication number
- CN108826822B CN108826822B CN201810621015.8A CN201810621015A CN108826822B CN 108826822 B CN108826822 B CN 108826822B CN 201810621015 A CN201810621015 A CN 201810621015A CN 108826822 B CN108826822 B CN 108826822B
- Authority
- CN
- China
- Prior art keywords
- rotating speed
- temperature
- refrigerator
- condenser
- condensing fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
-
- 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
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a control method of a refrigerator and the refrigerator, wherein the control method of the refrigerator comprises the following steps: acquiring the ambient temperature and the temperature at the outlet of the condenser; and adjusting the rotating speed of the condensing fan according to the ambient temperature and the difference value of the ambient temperature and the temperature at the outlet of the condenser. According to the control method of the refrigerator, the rotating speed of the condensing fan is adjusted through the difference value of the environment temperature and the temperature of the outlet of the condenser, so that the actual heat dissipation capacity of the condenser can be matched with the system heat load, the refrigerator can run efficiently, and the power consumption of the refrigerator is reduced.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a refrigerator control method and a refrigerator.
Background
The condenser fan speed of the existing refrigerator on the market is simply set according to the ambient temperature, namely: when the refrigerator runs, the temperature of the environment where the refrigerator is located is collected through the environment temperature, and then the rotating speed of a condensation fan of the refrigerator is calculated through a preset algorithm in a program, wherein the rotating speed of the fan is only related to the environment temperature and is not related to other components. However, in the actual use process of the refrigerator, the heat load is in dynamic change, the heat dissipation load of the condenser can be correspondingly changed, and if the rotating speed of the condensing fan is only related to the ambient temperature, the environmental temperature is not changed, and the rotating speed is not changed, so that the actual heat dissipation capacity of the condenser cannot follow the dynamic change of the load of the whole refrigerator, and the following phenomenon can occur: 1. when a user opens the refrigerator to put a large amount of hot food into the refrigerator body, the heat load of the refrigerator is increased rapidly, the heat dissipation load of the condenser is also increased, and at the moment, the condensing fan still keeps the original rotating speed, so that the heat dissipation of the condenser is insufficient, a refrigerant at an outlet of the condensing fan cannot be cooled into a liquid state, a system cannot normally operate, the cooling speed is reduced, and the power consumption is increased; 2. when a user puts the refrigerator in a well-ventilated or poor-ventilated environment, the difference between the actual heat exchange of the condenser and the design working condition is large, so that the temperature of the system deviates, the system cannot run efficiently, and the energy consumption is increased.
Disclosure of Invention
In order to solve at least one of the above technical problems, an embodiment of a first aspect of the present invention proposes a control method of a refrigerator.
In a second aspect of the embodiment of the invention, a refrigerator is also provided.
In view of the above, according to an embodiment of a first aspect of the present invention, the present invention provides a control method of a refrigerator, the refrigerator including a condenser, the control method of the refrigerator including: acquiring the ambient temperature and the temperature at the outlet of the condenser; and adjusting the rotating speed of the condensing fan according to the ambient temperature and the difference value of the ambient temperature and the temperature at the outlet of the condenser.
According to the control method of the refrigerator, the rotating speed of the condensing fan is adjusted according to the environment temperature and the difference value between the environment temperature and the temperature at the outlet of the condenser, wherein the environment temperature can reflect the heat exchange efficiency of the condenser under the condition of the same rotating speed of the condensing fan in the current environment, namely the lower the environment temperature is, the more the heat dissipation of the condenser is facilitated; the difference between the ambient temperature and the temperature at the outlet of the condenser can reflect the load condition of the current refrigerator, for example, if the difference is large, the load of the refrigerator is large, and the rotating speed of a condensing fan is required to be higher, so that the actual heat dissipation capacity of the condenser can be matched with the heat load of a system by jointly adjusting the rotating speed of the condensing fan through the ambient temperature and the difference between the ambient temperature and the temperature at the outlet of the condenser, the refrigerator can run efficiently, and the power consumption of the refrigerator is reduced. Especially, when the load of the refrigerator is changed, the rotating speed of the condensing fan can be adjusted according to actual requirements, so that the outlet temperature of the condenser is in a proper range, the refrigerator is ensured to run efficiently at all times, and the working energy efficiency of the refrigerator is improved.
In addition, the control method of the refrigerator in the above embodiment provided by the present invention may further have the following additional technical features:
in the above technical solution, preferably, the step of adjusting the rotation speed of the condensing fan according to the ambient temperature and the difference between the ambient temperature and the temperature at the outlet of the condenser specifically includes: determining the initial rotating speed of a condensing fan according to the ambient temperature; determining a first correction rotating speed every other first preset time according to the ambient temperature and the difference value; and adjusting the rotating speed of the condensing fan to a first target rotating speed, wherein the first target rotating speed is the sum of the initial rotating speed and the first correction rotating speed.
According to the technical scheme, the initial rotating speed of the condensing fan is determined according to the ambient temperature, the condensing fan can operate at the initial rotating speed within the initial period of the refrigerator operation, then the first correction rotating speed is determined once every other first preset time, and the rotating speed of the condensing fan is adjusted to the first target rotating speed (the sum of the initial rotating speed and the first correction rotating speed), so that the condensing fan can adjust the rotating speed according to the load condition of the refrigerator reflected by the difference value, the actual heat dissipation capacity of the condenser is matched with the system heat load, and the refrigerator can operate efficiently. In addition, the initial rotating speed can be determined again according to the ambient temperature at intervals, and then the initial rotating speed is adjusted and corrected.
In any of the above technical solutions, preferably, the method further includes: calculating a first change rate of the difference value every second preset time length; if the first change rate is smaller than a first preset rate, determining a second correction rotating speed according to the first change rate; and adjusting the rotating speed of the condensing fan from the first target rotating speed to a second target rotating speed, wherein the second target rotating speed is the sum of the first target rotating speed and a second correction rotating speed.
In the technical scheme, the rotating speed of the condensing fan is further adjusted according to the change rate of the difference value between the ambient temperature and the temperature at the outlet of the condenser, if the change rate of the difference value is large, the refrigerating capacity of the refrigerator in the time period is sufficient, and if the change rate of the difference value is small, the refrigerating capacity of the refrigerator in the time period is possibly insufficient, so that a second correction rotating speed can be determined according to the first change rate, the rotating speed of the condensing fan is further adjusted according to the second correction rotating speed, the actual heat dissipation capacity of the condenser is matched with the system heat load, and the efficient operation of the refrigerator is ensured.
In any of the above technical solutions, preferably, the method further includes: calculating a second rate of change of temperature within a refrigeration zone of the refrigerator; if the second change rate is smaller than a second preset rate, determining a third correction rotating speed according to the second change rate; and adjusting the rotating speed of the condensing fan according to the ambient temperature, the difference value and the third correction rotating speed.
In the technical scheme, the rotating speed of the condensing fan is adjusted according to the second change rate of the temperature in the refrigerating area of the refrigerator, if the second change rate is larger, the refrigerating capacity of the refrigerator is full, and if the second change rate is smaller than the second preset rate, the refrigerating capacity of the refrigerator is insufficient, so that a third correction rotating speed is determined according to the second change rate, the rotating speed of the condensing fan is further adjusted according to the third correction rotating speed, the rotating speed of the condensing fan can be adjusted according to the current refrigerating requirement of the refrigerator, the actual heat dissipating capacity of the condenser is matched with the system heat load, and efficient operation of the refrigerator is guaranteed.
In any of the above technical solutions, preferably, the method further includes: calculating a temperature difference between a temperature within a refrigeration area of the refrigerator and a target temperature; and adjusting the rotating speed of the condensing fan according to the ambient temperature, the difference value and the temperature difference.
In the technical scheme, the rotating speed of the condensing fan is adjusted according to the temperature difference between the temperature in the refrigerating area of the refrigerator and the target temperature, if the temperature difference is large, the refrigerating requirement is large at the moment, the condensing fan needs a higher rotating speed so as to improve the heat dissipation of the condenser and the refrigerating capacity of the refrigerator, and if the temperature difference is small, the refrigerating requirement is small at the moment, the rotating speed of the condensing fan can be adjusted upwards in a fine adjustment mode or kept unchanged, so that the actual heat dissipation capacity of the condenser is matched with the system heat load, and the efficient operation of the refrigerator is guaranteed.
An embodiment of a second aspect of the present invention provides a refrigerator, comprising: a memory storing executable instructions; a condenser disposed on a body of the refrigerator; the condensation fan is arranged in the body; the first temperature sensor is arranged on the body and used for detecting the ambient temperature; the second temperature sensor is arranged at the outlet of the condenser and used for detecting the temperature at the outlet of the condenser; at least one processor configured to execute executable instructions to: acquiring the ambient temperature and the temperature at the outlet of the condenser; and adjusting the rotating speed of the condensing fan according to the ambient temperature and the difference value of the ambient temperature and the temperature at the outlet of the condenser.
According to the refrigerator provided by the invention, the processor adjusts the rotating speed of the condensing fan according to the ambient temperature and the difference value between the ambient temperature and the temperature at the outlet of the condenser, wherein the ambient temperature can reflect the heat exchange efficiency of the condenser under the condition of the same rotating speed of the condensing fan in the current environment, namely the lower the ambient temperature is, the more the heat dissipation of the condenser is facilitated; the difference between the ambient temperature and the temperature at the outlet of the condenser can reflect the load condition of the current refrigerator, for example, if the difference is large, the load of the refrigerator is large, and the rotating speed of a condensing fan is required to be higher, so that the actual heat dissipation capacity of the condenser can be matched with the heat load of a system by jointly adjusting the rotating speed of the condensing fan through the ambient temperature and the difference between the ambient temperature and the temperature at the outlet of the condenser, the refrigerator can run efficiently, and the power consumption of the refrigerator is reduced. Especially, when the load of the refrigerator is changed, the rotating speed of the condensing fan can be adjusted according to actual requirements, so that the outlet temperature of the condenser is in a proper range, the refrigerator is ensured to run efficiently at all times, and the working energy efficiency of the refrigerator is improved.
In addition, the refrigerator in the above embodiment provided by the present invention may further have the following additional technical features:
in the above technical solution, preferably, at least one processor is further configured to execute the executable instructions to specifically perform the following steps: determining the initial rotating speed of a condensing fan according to the ambient temperature; determining a first correction rotating speed every other first preset time according to the ambient temperature and the difference value; and adjusting the rotating speed of the condensing fan to a first target rotating speed, wherein the first target rotating speed is the sum of the initial rotating speed and the first correction rotating speed.
In the technical scheme, the processor firstly determines the initial rotating speed of the condensing fan according to the ambient temperature, the condensing fan can operate at the initial rotating speed within the initial period of the refrigerator operation, then determines the first correction rotating speed every other first preset time, and adjusts the rotating speed of the condensing fan to the first target rotating speed (the sum of the initial rotating speed and the first correction rotating speed), so that the condensing fan can adjust the rotating speed according to the load condition of the refrigerator reflected by the difference, the actual heat dissipating capacity of the condenser is matched with the system heat load, and the refrigerator can operate efficiently. In addition, the initial rotating speed can be determined again according to the ambient temperature at intervals, and then the initial rotating speed is adjusted and corrected.
In any of the above solutions, preferably, the at least one processor is further configured to execute the executable instructions to perform the following steps: calculating a first change rate of the difference value every second preset time length; if the first change rate is smaller than a first preset rate, determining a second correction rotating speed according to the first change rate; and adjusting the rotating speed of the condensing fan from the first target rotating speed to a second target rotating speed, wherein the second target rotating speed is the sum of the first target rotating speed and a second correction rotating speed.
In the technical scheme, the rotating speed of the condensing fan is further adjusted according to the change rate of the difference value between the ambient temperature and the temperature at the outlet of the condenser, if the change rate of the difference value is large, the refrigerating capacity of the refrigerator in the time period is sufficient, and if the change rate of the difference value is small, the refrigerating capacity of the refrigerator in the time period is possibly insufficient, so that a second correction rotating speed can be determined according to the first change rate, the rotating speed of the condensing fan is further adjusted according to the second correction rotating speed, the actual heat dissipation capacity of the condenser is matched with the system heat load, and the efficient operation of the refrigerator is ensured.
In any of the above technical solutions, preferably, the method further includes: the third temperature sensor is arranged in a refrigerating area of the refrigerator and used for detecting the temperature in the refrigerating area; the at least one processor is further configured to execute the executable instructions to perform the steps of: calculating a second rate of change of temperature within a refrigeration zone of the refrigerator; if the second change rate is smaller than a second preset rate, determining a third correction rotating speed according to the second change rate; and adjusting the rotating speed of the condensing fan according to the ambient temperature, the difference value and the third correction rotating speed.
In the technical scheme, the rotating speed of the condensing fan is adjusted according to the second change rate of the temperature in the refrigerating area of the refrigerator, if the second change rate is larger, the refrigerating capacity of the refrigerator is full, and if the second change rate is smaller than the second preset rate, the refrigerating capacity of the refrigerator is insufficient, so that a third correction rotating speed is determined according to the second change rate, the rotating speed of the condensing fan is further adjusted according to the third correction rotating speed, the rotating speed of the condensing fan can be adjusted according to the current refrigerating requirement of the refrigerator, the actual heat dissipating capacity of the condenser is matched with the system heat load, and efficient operation of the refrigerator is guaranteed.
In any of the above technical solutions, preferably, the method further includes: the fourth temperature sensor is arranged in a refrigerating area of the refrigerator and used for detecting the temperature in the refrigerating area; the at least one processor is further configured to execute the executable instructions to perform the steps of: calculating a temperature difference between a temperature within a refrigeration area of the refrigerator and a target temperature; and adjusting the rotating speed of the condensing fan according to the ambient temperature, the difference value and the temperature difference.
In the technical scheme, the rotating speed of the condensing fan is adjusted according to the temperature difference between the temperature in the refrigerating area of the refrigerator and the target temperature, if the temperature difference is large, the refrigerating requirement is large at the moment, the condensing fan needs a higher rotating speed so as to improve the heat dissipation of the condenser and the refrigerating capacity of the refrigerator, and if the temperature difference is small, the refrigerating requirement is small at the moment, the rotating speed of the condensing fan can be adjusted upwards in a fine adjustment mode or kept unchanged, so that the actual heat dissipation capacity of the condenser is matched with the system heat load, and the efficient operation of the refrigerator is guaranteed.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart illustrating a control method of a refrigerator according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a control method of a refrigerator according to another embodiment of the present invention;
fig. 3 is a flowchart illustrating a control method of a refrigerator according to another embodiment of the present invention;
fig. 4 is a schematic block diagram of a refrigerator according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A control method of a refrigerator and a refrigerator according to some embodiments of the present invention will be described below with reference to fig. 1 to 4.
As shown in fig. 1, the present invention provides a method for controlling a refrigerator, the refrigerator including a condenser, the method comprising the steps of:
s102: acquiring the ambient temperature and the temperature at the outlet of the condenser;
s104: and adjusting the rotating speed of the condensing fan according to the ambient temperature and the difference value of the ambient temperature and the temperature at the outlet of the condenser.
According to the control method of the refrigerator, the rotating speed of the condensing fan is adjusted according to the environment temperature and the difference value between the environment temperature and the temperature at the outlet of the condenser, wherein the environment temperature can reflect the heat exchange efficiency of the condenser under the condition of the same rotating speed of the condensing fan in the current environment, namely the lower the environment temperature is, the more the heat dissipation of the condenser is facilitated; the difference between the ambient temperature and the temperature at the outlet of the condenser can reflect the load condition of the current refrigerator, for example, if the difference is large, the load of the refrigerator is large, and the rotating speed of a condensing fan is required to be higher, so that the actual heat dissipation capacity of the condenser can be matched with the heat load of a system by jointly adjusting the rotating speed of the condensing fan through the ambient temperature and the difference between the ambient temperature and the temperature at the outlet of the condenser, the refrigerator can run efficiently, and the power consumption of the refrigerator is reduced. Especially, when the load of the refrigerator is changed, the rotating speed of the condensing fan can be adjusted according to actual requirements, so that the outlet temperature of the condenser is in a proper range, the refrigerator is ensured to run efficiently at all times, and the working energy efficiency of the refrigerator is improved.
As shown in fig. 2, the present invention provides a method for controlling a refrigerator, the refrigerator including a condenser, the method comprising the steps of:
s202: acquiring the ambient temperature and the temperature at the outlet of the condenser;
s204: determining the initial rotating speed of a condensing fan according to the ambient temperature;
s206: determining a first correction rotating speed every other first preset time according to the ambient temperature and the difference value;
s208: and adjusting the rotating speed of the condensing fan to a first target rotating speed, wherein the first target rotating speed is the sum of the initial rotating speed and the first correction rotating speed.
The control method of the refrigerator provided by the invention comprises the steps of firstly determining the initial rotating speed of the condensing fan according to the ambient temperature, enabling the condensing fan to operate at the initial rotating speed within the initial period of the operation of the refrigerator, then determining the first correction rotating speed every other first preset time, and adjusting the rotating speed of the condensing fan to the first target rotating speed (the sum of the initial rotating speed and the first correction rotating speed), so that the condensing fan can adjust the rotating speed according to the load condition of the refrigerator reflected by the difference value, the actual heat dissipating capacity of the condenser is matched with the heat load of a system, and the refrigerator can operate efficiently. In addition, the initial rotating speed can be determined again according to the ambient temperature at intervals, and then the initial rotating speed is adjusted and corrected.
In one embodiment of the present invention, preferably, the method further includes: calculating a first change rate of the difference value every second preset time length; if the first change rate is smaller than a first preset rate, determining a second correction rotating speed according to the first change rate; and adjusting the rotating speed of the condensing fan from the first target rotating speed to a second target rotating speed, wherein the second target rotating speed is the sum of the first target rotating speed and a second correction rotating speed.
In the embodiment, the rotating speed of the condensing fan is further adjusted according to the change rate of the difference value between the ambient temperature and the temperature at the outlet of the condenser, if the change rate of the difference value is larger, the refrigerating capacity of the refrigerator in the time period is sufficient, and if the change rate of the difference value is smaller, the refrigerating capacity of the refrigerator in the time period is possibly insufficient, so that the second correction rotating speed can be determined according to the first change rate, the rotating speed of the condensing fan is further adjusted according to the second correction rotating speed, the actual heat dissipation capacity of the condenser is matched with the system heat load, and the efficient operation of the refrigerator is ensured.
In one embodiment of the present invention, preferably, the method further includes: calculating a second rate of change of temperature within a refrigeration zone of the refrigerator; if the second change rate is smaller than a second preset rate, determining a third correction rotating speed according to the second change rate; and adjusting the rotating speed of the condensing fan according to the ambient temperature, the difference value and the third correction rotating speed.
In this embodiment, the rotating speed of the condensing fan is further adjusted according to a second change rate of the temperature in the refrigeration area of the refrigerator, if the second change rate is larger, the refrigeration capacity of the refrigerator is full, and if the second change rate is smaller than a second preset rate, the refrigeration capacity of the refrigerator is insufficient, so that a third correction rotating speed is further determined according to the second change rate, and then the rotating speed of the condensing fan is further adjusted according to the third correction rotating speed, so that the refrigerator can adjust the rotating speed of the condensing fan according to the current refrigeration requirement, further that the actual heat dissipation capacity of the condenser is matched with the system heat load, and efficient operation of the refrigerator is ensured.
In one embodiment of the present invention, preferably, the method further includes: calculating a temperature difference between a temperature within a refrigeration area of the refrigerator and a target temperature; and adjusting the rotating speed of the condensing fan according to the ambient temperature, the difference value and the temperature difference.
In the embodiment, the rotating speed of the condensing fan is adjusted according to the temperature difference between the temperature in the refrigerating area of the refrigerator and the target temperature, if the temperature difference is large, the refrigerating requirement is large at the moment, the condensing fan needs a higher rotating speed to improve the heat dissipation of the condenser and the refrigerating capacity of the refrigerator, and if the temperature difference is small, the refrigerating requirement is small at the moment, the rotating speed of the condensing fan can be adjusted upwards in a fine adjustment mode or kept unchanged, so that the actual heat dissipation capacity of the condenser is matched with the system heat load, and the efficient operation of the refrigerator is guaranteed.
In one embodiment of the present invention, preferably, in order to ensure that the speed of the condensing fan varies with the heat load, a sensor may be arranged at the outlet of the condenser to detect the outlet temperature T of the condenseroutThe ambient temperature Tw is detected by an ambient temperature sensor of the refrigerator, and the rotating speed R of the condensing fan is finally calculated, wherein the process is carried out once every 10 min. The specific calculation process is as follows:
firstly, the rotating speed R of the condensing fan is set to be the initial value RCAnd a revised value RxTwo-part compositions, i.e. R ═ RC+RxTaking a value Tw of the ambient temperature sensor once after the compressor is started for 4min, and determining the initial rotating speed of the condensing fan according to the Tw value, wherein RCTw are shown in Table 1 (R)C1≤RC2≤RC3≤RC4≤RC5, where the ambient temperature is in units of deg.c).
TABLE 1
The condenser outlet temperature Tout and the ambient temperature Tw are collected every 10min, the difference between the two temperatures is recorded as Delta T, and the relationship between the correction value and the ambient temperature and Delta T is shown in the following table (wherein the unit of Tw and Delta T is ℃):
TABLE 2
| Tw≤16 | 16＜Tw≤28 | 28＜Tw≤35 | 35＜Tw≤40 | 40＜Tw | |
| ΔT≤1 | a | b | c | d | e |
| 1＜ΔT≤2 | 2a | 2b | 2c | 2d | 2e |
| 2＜ΔT≤3 | 3a | 3b | 3c | 3d | 3e |
| 3＜ΔT≤4 | 4a | 4b | 4c | 4d | 4e |
| 4＜ΔT≤5 | 5a | 5b | 5c | 5d | 5e |
| 5＜ΔT | 6a | 6b | 6c | 6d | 6e |
And then, determining a rotation speed revision value according to the table 2, calculating the final rotation speed of the condensation fan, and adjusting the rotation speed of the condensation fan to ensure that the refrigerator operates efficiently under various loads.
Specifically, for example: the ambient temperature is 20 ℃, delta T is 2.5, and the rotating speed R of the condensing fan is equal to RC2+3b, and then regulating the rotating speed of the condensing fan. In table 2, each revised value is in a multiple relationship in the same ambient temperature range, and in the actual design, each revised value may not be in a multiple relationship, which may be designed according to the actual requirement.
In one embodiment of the present invention, preferably, as shown in fig. 3, the control method of the refrigerator includes the steps of:
s302: starting a compressor (starting a refrigerator or starting refrigeration);
s304: setting the initial rotating speed of the condensing fan according to the temperature value detected by the environment temperature sensor after 4 min;
s306: calculating a rotation speed correction value according to a difference value between a temperature value detected by the environment temperature sensor and a temperature value detected by the temperature sensor at the outlet of the condenser after 10 min;
s308: setting the rotating speed of the condensing fan as an initial rotating speed plus a correction value;
s310: judging whether a stop point is reached, if so, entering S312, and if not, returning to S306;
s312: and (5) stopping the machine.
In the embodiment, the initial rotating speed of the condensing fan is set through the temperature value sensed by the annular temperature sensing bulb after the compressor is started for 4min, then the ambient temperature and the outlet temperature of the condenser are detected every 10min, the rotating speed revision value is determined through the difference value of the ambient temperature and the ambient temperature, the rotating speed of the condensing fan is adjusted according to the initial rotating speed and the rotating speed revision value, and finally the efficient operation of the refrigerator under various loads is ensured.
The present invention also provides a refrigerator 4, as shown in fig. 4, including: a memory 402 storing executable instructions; a condenser 406 provided on the body of the refrigerator 4; a condensing fan 408 disposed in the body; a first temperature sensor 412 disposed on the body for detecting an ambient temperature; a second temperature sensor 414 provided at the outlet of the condenser 406 for detecting the temperature at the outlet of the condenser 406; at least one processor 404 configured to execute executable instructions to: obtaining ambient temperature and temperature at the outlet of condenser 406; the speed of the condensing fan 408 is adjusted based on the ambient temperature and the difference between the ambient temperature and the temperature at the outlet of the condenser 406.
In the refrigerator 4 provided by the present invention, the processor 404 adjusts the rotation speed of the condensing fan 408 according to the ambient temperature and the difference between the ambient temperature and the temperature at the outlet of the condenser 406, wherein the ambient temperature can reflect the heat exchange efficiency of the condenser 406 under the same rotation speed condition of the condensing fan 408 in the current environment, i.e. the lower the ambient temperature is, the more the heat dissipation of the condenser 406 is facilitated; the difference between the ambient temperature and the temperature at the outlet of the condenser 406 may reflect the current load condition of the refrigerator 4, for example, if the difference is large, it indicates that the load of the refrigerator 4 is large and a higher rotation speed of the condensing fan is required, so that the actual heat dissipation capacity of the condenser 406 may be ensured to match the system heat load by adjusting the rotation speed of the condensing fan 408 together by the difference between the ambient temperature and the temperature at the outlet of the condenser 406, so that the refrigerator 4 operates efficiently, and the power consumption of the refrigerator 4 is reduced. Especially, when the load of the refrigerator 4 is changed, the rotating speed of the condensing fan can be adjusted according to actual needs, so that the outlet temperature of the condenser 406 is in a proper range, the refrigerator 4 is ensured to be in efficient operation all the time, and the working energy efficiency of the refrigerator 4 is improved.
In one embodiment of the present invention, preferably, the at least one processor 404 is further configured to execute the executable instructions to specifically perform the steps of: determining the initial rotation speed of the condensing fan 408 according to the ambient temperature; determining a first correction rotating speed every other first preset time according to the ambient temperature and the difference value; the rotation speed of the condensing fan 408 is adjusted to a first target rotation speed, which is the sum of the initial rotation speed and the first corrected rotation speed.
In this embodiment, the processor 404 first determines an initial rotation speed of the condenser fan 408 according to the ambient temperature, the condenser fan 408 may operate at the initial rotation speed during an initial period of operation of the refrigerator 4, and then determines a first correction rotation speed every first preset time period, and adjusts the rotation speed of the condenser fan 408 to a first target rotation speed (a sum of the initial rotation speed and the first correction rotation speed), thereby ensuring that the condenser fan 408 may adjust the rotation speed according to the load condition of the refrigerator 4 reflected by the difference, and ensuring that the actual heat dissipation amount of the condenser 406 matches the system heat load, so as to operate the refrigerator 4 efficiently. In addition, the initial rotating speed can be determined again according to the ambient temperature at intervals, and then the initial rotating speed is adjusted and corrected.
In one embodiment of the present invention, preferably, the at least one processor 404 is further configured to execute the executable instructions to perform the steps of: calculating a first change rate of the difference value every second preset time length; if the first change rate is smaller than a first preset rate, determining a second correction rotating speed according to the first change rate; the rotation speed of the condensing fan 408 is adjusted from the first target rotation speed to a second target rotation speed, which is the sum of the first target rotation speed and the second correction rotation speed.
In this embodiment, the rotation speed of the condensing fan 408 is further adjusted according to the change rate of the difference value between the ambient temperature and the temperature at the outlet of the condenser 406, if the change rate of the difference value is large, it indicates that the refrigerating capacity of the refrigerator 4 is sufficient in this time period, and if the change rate of the difference value is small, it indicates that the refrigerating capacity of the refrigerator 4 may be insufficient in this time period, so that the second correction rotation speed may be determined according to the first change rate, and then the rotation speed of the condensing fan 408 is further adjusted according to the second correction rotation speed, so as to ensure that the actual heat dissipation amount of the condenser 406 matches with the system heat load, and ensure the efficient operation of the refrigerator 4.
In an embodiment of the present invention, preferably, as shown in fig. 4, further includes: a third temperature sensor 416 disposed in a cooling area of the refrigerator 4 for detecting a temperature in the cooling area; the at least one processor 404 is further configured to execute the executable instructions to perform the steps of: calculating a second rate of change of temperature within the refrigeration zone of the refrigerator 4; if the second change rate is smaller than a second preset rate, determining a third correction rotating speed according to the second change rate; the rotational speed of the condensing fan 408 is adjusted according to the ambient temperature, the difference, and the third corrected rotational speed.
In this embodiment, the rotation speed of the condensing fan 408 is further adjusted according to a second change rate of the temperature in the refrigeration area of the refrigerator 4, if the second change rate is larger, the refrigeration capacity of the refrigerator 4 is full, and if the second change rate is smaller than a second preset rate, the refrigeration capacity of the refrigerator 4 is insufficient, so that a third correction rotation speed needs to be determined according to the second change rate, and then the rotation speed of the condensing fan 408 is further adjusted according to the third correction rotation speed, so that the refrigerator 4 can adjust the rotation speed of the condensing fan 408 according to the current refrigeration demand, and further, the actual heat dissipation amount of the condenser 406 is matched with the system heat load, and the efficient operation of the refrigerator 4 is ensured.
In an embodiment of the present invention, preferably, as shown in fig. 4, further includes: a fourth temperature sensor 418 provided in the refrigerating area of the refrigerator 4 for detecting the temperature in the refrigerating area; the at least one processor 404 is further configured to execute the executable instructions to perform the steps of: calculating a temperature difference between the temperature within the refrigeration zone of the refrigerator 4 and the target temperature; the rotational speed of the condensing fan 408 is adjusted according to the ambient temperature, the difference value, and the temperature difference.
In this embodiment, the rotation speed of the condensing fan 408 is also adjusted according to the temperature difference between the temperature in the refrigeration area of the refrigerator 4 and the target temperature, if the temperature difference is larger, the refrigeration requirement is also larger at this time, the condensing fan 408 needs a higher rotation speed to improve the heat dissipation of the condenser 406 and the refrigeration capacity of the refrigerator 4, and if the temperature difference is smaller, the refrigeration requirement is also smaller at this time, the rotation speed of the condensing fan 408 can be finely adjusted upward or kept unchanged, thereby ensuring that the actual heat dissipation capacity of the condenser 406 is matched with the system heat load, and ensuring the efficient operation of the refrigerator 4.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A control method of a refrigerator, the refrigerator including a condenser, the control method of the refrigerator comprising:
acquiring an ambient temperature and a temperature at an outlet of the condenser;
adjusting the rotating speed of a condensing fan according to the environment temperature and the difference value between the environment temperature and the temperature at the outlet of the condenser;
calculating a second rate of change of temperature within a refrigeration zone of the refrigerator;
if the second change rate is smaller than a second preset rate, determining a third correction rotating speed according to the second change rate;
and adjusting the rotating speed of the condensing fan according to the environment temperature, the difference value and the third correction rotating speed.
2. The method for controlling a refrigerator according to claim 1, wherein the step of adjusting the rotation speed of the condensing fan according to the ambient temperature and the difference between the ambient temperature and the temperature at the outlet of the condenser specifically comprises:
determining the initial rotating speed of the condensing fan according to the environment temperature;
determining a first correction rotating speed every other first preset time according to the environment temperature and the difference value;
and adjusting the rotating speed of the condensing fan to a first target rotating speed, wherein the first target rotating speed is the sum of the initial rotating speed and the first correction rotating speed.
3. The method of controlling a refrigerator according to claim 2, further comprising:
calculating a first change rate of the difference value every second preset time length;
if the first change rate is smaller than a first preset rate, determining a second correction rotating speed according to the first change rate;
and adjusting the rotating speed of the condensing fan from the first target rotating speed to a second target rotating speed, wherein the second target rotating speed is the sum of the first target rotating speed and the second correction rotating speed.
4. The method of controlling a refrigerator according to any one of claims 1 to 3, further comprising:
calculating a temperature difference between a temperature within a refrigeration zone of the refrigerator and a target temperature;
and adjusting the rotating speed of the condensing fan according to the environment temperature, the difference value and the temperature difference.
5. A refrigerator, characterized by comprising:
a memory storing executable instructions;
a condenser disposed on a body of the refrigerator;
the condensation fan is arranged in the body;
the first temperature sensor is arranged on the body and used for detecting the ambient temperature;
the second temperature sensor is arranged at the outlet of the condenser and used for detecting the temperature at the outlet of the condenser;
at least one processor configured to execute the executable instructions to:
acquiring the ambient temperature and the temperature at the outlet of the condenser;
adjusting the rotating speed of a condensing fan according to the environment temperature and the difference value between the environment temperature and the temperature at the outlet of the condenser;
the third temperature sensor is arranged in a refrigeration area of the refrigerator and used for detecting the temperature in the refrigeration area;
the at least one processor is further configured to execute the executable instructions to perform the steps of:
calculating a second rate of change of temperature within a refrigeration zone of the refrigerator;
if the second change rate is smaller than a second preset rate, determining a third correction rotating speed according to the second change rate;
and adjusting the rotating speed of the condensing fan according to the environment temperature, the difference value and the third correction rotating speed.
6. The refrigerator of claim 5, wherein the at least one processor is further configured to execute the executable instructions to perform steps comprising:
determining the initial rotating speed of the condensing fan according to the environment temperature;
determining a first correction rotating speed every other first preset time according to the environment temperature and the difference value;
and adjusting the rotating speed of the condensing fan to a first target rotating speed, wherein the first target rotating speed is the sum of the initial rotating speed and the first correction rotating speed.
7. The refrigerator of claim 6, wherein the at least one processor is further configured to execute the executable instructions to:
calculating a first change rate of the difference value every second preset time length;
if the first change rate is smaller than a first preset rate, determining a second correction rotating speed according to the first change rate;
and adjusting the rotating speed of the condensing fan from the first target rotating speed to a second target rotating speed, wherein the second target rotating speed is the sum of the first target rotating speed and the second correction rotating speed.
8. The refrigerator according to any one of claims 5 to 7, further comprising:
the fourth temperature sensor is arranged in a refrigeration area of the refrigerator and used for detecting the temperature in the refrigeration area;
the at least one processor is further configured to execute the executable instructions to perform the steps of:
calculating a temperature difference between a temperature within a refrigeration zone of the refrigerator and a target temperature;
and adjusting the rotating speed of the condensing fan according to the environment temperature, the difference value and the temperature difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810621015.8A CN108826822B (en) | 2018-06-15 | 2018-06-15 | Refrigerator control method and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810621015.8A CN108826822B (en) | 2018-06-15 | 2018-06-15 | Refrigerator control method and refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108826822A CN108826822A (en) | 2018-11-16 |
| CN108826822B true CN108826822B (en) | 2020-11-27 |
Family
ID=64142248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810621015.8A Active CN108826822B (en) | 2018-06-15 | 2018-06-15 | Refrigerator control method and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108826822B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990523A (en) * | 2019-04-08 | 2019-07-09 | 长虹美菱股份有限公司 | A kind of refrigerator condensation cooling system and its control method |
| CN109974392B (en) * | 2019-04-11 | 2020-11-20 | 青岛海尔电冰箱有限公司 | Control method and control device of refrigerator |
| CN112856842A (en) * | 2021-01-25 | 2021-05-28 | 珠海格力电器股份有限公司 | Control method of water chiller and water chiller |
| CN113776268A (en) * | 2021-09-23 | 2021-12-10 | 珠海格力电器股份有限公司 | Refrigerator condensing fan control method and system and refrigerator |
| CN114776620A (en) * | 2022-05-09 | 2022-07-22 | 黄石东贝制冷有限公司 | Fan control method and fan control device of ice cream machine and ice cream machine |
| WO2023240900A1 (en) * | 2022-06-14 | 2023-12-21 | 海信冰箱有限公司 | Refrigerator |
| CN115235184A (en) * | 2022-08-09 | 2022-10-25 | 长虹美菱股份有限公司 | Refrigerator energy-saving control method and refrigerator |
| CN115235155A (en) * | 2022-08-25 | 2022-10-25 | 长沙中谷智能设备制造有限公司 | Intelligent cooling system of vending machine and control method |
| CN115717808A (en) * | 2022-11-25 | 2023-02-28 | 珠海格力电器股份有限公司 | Condensation fan control method and device and refrigerator |
| CN117570646B (en) * | 2023-12-26 | 2024-07-19 | 河南新飞智家科技有限公司 | Energy-saving operation method of embedded air-cooled refrigerator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901321A (en) * | 2012-10-16 | 2013-01-30 | 海信容声(广东)冰箱有限公司 | Control system and control method of condenser fan for refrigerator |
| CN104880015A (en) * | 2015-05-26 | 2015-09-02 | 青岛海尔股份有限公司 | Refrigerator and control method used for cooling draught fan of refrigerator compressor |
-
2018
- 2018-06-15 CN CN201810621015.8A patent/CN108826822B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901321A (en) * | 2012-10-16 | 2013-01-30 | 海信容声(广东)冰箱有限公司 | Control system and control method of condenser fan for refrigerator |
| CN104880015A (en) * | 2015-05-26 | 2015-09-02 | 青岛海尔股份有限公司 | Refrigerator and control method used for cooling draught fan of refrigerator compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108826822A (en) | 2018-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108826822B (en) | Refrigerator control method and refrigerator | |
| CN107747793B (en) | Variable frequency air conditioner and control method and device thereof | |
| WO2019105028A1 (en) | Air conditioner and control method and device thereof | |
| EP2414749B1 (en) | Systems and methods involving heating and cooling system control | |
| CN106765890A (en) | For the method and air-conditioning of airconditioning control | |
| CN106568161A (en) | Air conditioner heating running control method | |
| CN104634063A (en) | Control method of refrigerator, control device of refrigerator and refrigerator | |
| CN107631424B (en) | Automatic temperature-adjusting air conditioner control method and air conditioner | |
| CN106839263A (en) | Air-conditioning and its control method | |
| CN113531857B (en) | Control method of multi-split air conditioner, multi-split air conditioner and storage medium | |
| CN108758976B (en) | Control method and device of air conditioner and air conditioner with control device | |
| CN107883545A (en) | Control method, control system, computer-readable recording medium and mobile air conditioner | |
| JP6363428B2 (en) | Heat medium circulation system | |
| CN107883544A (en) | Control method, control system, computer-readable recording medium and mobile air conditioner | |
| JP5591214B2 (en) | Air conditioner and method of operating air conditioner | |
| US20140343733A1 (en) | Systems And Methods For Compressor Overspeed Control | |
| CN105352119B (en) | Control method and device for freezing water system in air conditioner | |
| CN110940063A (en) | Target water temperature control method and device, storage medium and water multi-connected system | |
| CN112665239B (en) | Water chilling unit starting method and device and water chilling unit | |
| JP2021177122A (en) | Control device, control method and control program for air conditioning system and air conditioning system | |
| JP2020051649A (en) | Air conditioner | |
| CN113587335B (en) | Control method and device for improving long-time temperature-reaching shutdown of air conditioner and air conditioner | |
| CN115289639A (en) | Control method, device, equipment and medium for fluorine pump air conditioner | |
| CN115751589A (en) | Air conditioner control method and controller | |
| EP3754269B1 (en) | Method and associated computer readable medium for controlling the defrost cycle of a vapor compression system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |