CN110953775B - Refrigeration equipment and refrigeration equipment control method - Google Patents
Refrigeration equipment and refrigeration equipment control method Download PDFInfo
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- CN110953775B CN110953775B CN201911150346.9A CN201911150346A CN110953775B CN 110953775 B CN110953775 B CN 110953775B CN 201911150346 A CN201911150346 A CN 201911150346A CN 110953775 B CN110953775 B CN 110953775B
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The application discloses refrigeration equipment and a refrigeration equipment control method, relates to the technical field of refrigeration equipment, and is used for reducing noise generated during operation of the refrigeration equipment. This refrigeration plant includes: a compartment forming a low-temperature storage space; the compressor is a frequency-variable compressor capable of switching frequency; a first sensor for measuring an ambient temperature; a second sensor for measuring the temperature of the compartment; and a controller for: after the compressor is started, the compressor is controlled to operate at a specific frequency according to the ambient temperature. The embodiment of the application is applied to control of refrigeration equipment.
Description
Technical Field
The application relates to the technical field of refrigeration equipment, in particular to refrigeration equipment and a refrigeration equipment control method.
Background
Some refrigeration equipment such as refrigerator, etc. need 24 hours work, and refrigeration equipment can produce certain noise when moving, and this kind of noise is difficult for being perceived by the user daytime, but at night or under the comparatively quiet condition, this kind of noise can be comparatively obvious, produces certain influence to user's sleep.
The compressor and the fan are main noise sources when the refrigeration equipment runs, and the noise and the actual energy consumption when the refrigeration equipment runs are influenced by the frequency of the compressor and the rotating speed of the fan. In the prior art, the refrigeration equipment usually controls the frequency of the compressor according to the ambient temperature detected by the sensor, which may cause that the cold quantity required by the compartment of the refrigeration equipment is less than the cold quantity provided by the compressor, and the compressor is frequently started and stopped to generate more noise; when the compartment of the refrigeration equipment requires more cooling than the compressor provides, the compressor will continue to operate and continue to produce noise.
Disclosure of Invention
The embodiment of the application provides refrigeration equipment and a refrigeration equipment control method, and is used for solving the problem that in the prior art, the refrigeration equipment controls the frequency of a compressor according to the ambient temperature detected by a sensor, so that the compressor generates more noise.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
in a first aspect, an embodiment of the present application provides a refrigeration apparatus, including:
a compartment forming a low-temperature storage space;
the compressor is a switchable frequency conversion compressor;
a first sensor for measuring an ambient temperature;
a second sensor for measuring the temperature of the compartment;
and a controller for:
after the compressor is started, when the obtained environment temperature is greater than or equal to a first environment temperature, controlling the compressor to operate at a first frequency for a first switching time and then switching to operate at a second frequency, and controlling the compressor to operate at the second frequency for the first switching time and then switching to operate at a third frequency;
or when the environment temperature is acquired to be less than the first environment temperature and greater than or equal to a second environment temperature, controlling the compressor to operate at the first frequency for a second switching time and then switching to operate at the second frequency;
or when the obtained environment temperature is lower than the second environment temperature, controlling the compressor to operate at the first frequency for a third switching time and then switching to the second frequency operation;
the third frequency is greater than the second frequency, the second frequency is greater than the first frequency, the third switching time is greater than the second switching time, and the second switching time is greater than the first switching time.
In a second aspect, an embodiment of the present application provides a refrigeration apparatus control method, including:
after the compressor is started, when the obtained environment temperature is greater than or equal to a first environment temperature, controlling the compressor to operate at a first frequency for a first switching time and then switching to operate at a second frequency, and operating at the second frequency for the first switching time and then switching to operate at a third frequency;
or when the environment temperature is acquired to be less than the first environment temperature and greater than or equal to a second environment temperature, controlling the compressor to operate at the first frequency for a second switching time and then switching to operate at the second frequency;
or when the obtained environment temperature is lower than the second environment temperature, controlling the compressor to operate at the first frequency for a third switching time and then switching to the second frequency operation;
the third frequency is greater than the second frequency, the second frequency is greater than the first frequency, the third switching time is greater than the second switching time, and the second switching time is greater than the first switching time.
In a third aspect, there is provided a computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer, cause the computer to perform the refrigeration appliance control method of the second aspect.
In a fourth aspect, a computer program product is provided containing instructions which, when run on a computer, cause the computer to perform the refrigeration appliance control method according to the second aspect.
In a fifth aspect, there is provided a refrigeration apparatus control device including: the processor is used for storing programs, and the processor calls the programs stored in the memory to execute the refrigeration equipment control method of the second aspect.
According to the refrigeration equipment and the refrigeration equipment control method provided by the embodiment of the application, after the compressor is started, the operation frequency of the compressor is controlled according to the ambient temperature, and when the ambient temperature is greater than or equal to the first ambient temperature, the compressor is controlled to operate for the first switching time at the first frequency, then the compressor is controlled to operate for the first switching time at the second frequency, and then the compressor is switched to operate at the third frequency; when the ambient temperature is lower than the first ambient temperature and lower than or equal to the second ambient temperature, the compressor is controlled to operate at the first frequency for a second switching time and then is switched to operate at the second frequency; when the ambient temperature is lower than the second ambient temperature, the compressor is controlled to operate at the first frequency for the third switching time and then is switched to operate at the second frequency, so that the compressor is switched from the lower frequency to the second frequency gradually according to the ambient temperature after being started, and more noises caused by direct operation at the highest speed are avoided. The problem of among the prior art according to the ambient temperature control compressor's that the sensor detected frequency, make the cold volume that the compressor provided and the cold volume difference of demand great, the compressor frequently opens and stops or continuously operates, produces more noise is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a refrigeration apparatus provided in an embodiment of the present application;
fig. 2 is a first flowchart illustrating a control method of a refrigeration apparatus according to an embodiment of the present disclosure;
fig. 3 is a second flowchart illustrating a control method of a refrigeration apparatus according to an embodiment of the present application;
fig. 4 is a third flowchart illustrating a control method of a refrigeration apparatus according to an embodiment of the present application;
fig. 5 is a fourth flowchart illustrating a control method of a refrigeration apparatus according to an embodiment of the present application;
FIG. 6 is a schematic diagram illustrating a comparison of noise levels of a refrigerator of a certain type according to an embodiment of the present application;
FIG. 7 is a schematic diagram illustrating a comparison of cooling rates of a refrigerator of a certain type according to an embodiment of the present application;
FIG. 8 is a schematic diagram illustrating a comparison of cooling speed of another type of refrigerator provided by an embodiment of the present application;
fig. 9 is a fifth flowchart illustrating a control method of a refrigeration apparatus according to an embodiment of the present application.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Embodiments of the present application provide a refrigeration appliance that may be a refrigerator, freezer, or the like that requires 24 hours of operation.
As shown in fig. 1, the structure of a refrigeration apparatus will be described by taking the refrigeration apparatus as an example of a refrigerator.
The refrigerator includes: a controller 10 (not shown), a compressor 11, a fan 12, a first sensor 13, a second sensor 14, a throttling device 15, an evaporator 16, a liquid storage 17, a condenser 18 and an electromagnetic valve 19. Wherein the first sensor 13 is for measuring ambient temperature, and the second sensor 14 includes a refrigerating compartment second sensor 141 for measuring a temperature of a compartment of the refrigerating compartment, and a freezing compartment second sensor 142 for measuring a temperature of a compartment of the freezing compartment.
When the refrigerator works, high-temperature and high-pressure gaseous refrigerant discharged by the compressor 11 is cooled by the condenser 18 and then changed into normal-temperature liquid refrigerant, the refrigerant is divided into two paths, wherein one path of refrigerant enters the refrigerating chamber evaporator 161 after being throttled and depressurized by the first throttling device 151 (a first capillary tube), the other path of refrigerant enters the freezing chamber evaporator 162 after being throttled by the second throttling device 152 (a second capillary tube), a refrigerant pipeline flowing out of the refrigerating chamber evaporator 161 is connected to a pipeline between the second throttling device 152 and the freezing chamber evaporator 162, the liquid refrigerant flowing out of the freezing chamber evaporator 162 flows back to the liquid reservoir 17, and the gaseous refrigerant flows back to the air return opening of the compressor 11. When the freezing chamber has a refrigeration requirement, the compressor 11 is started, the electromagnetic valve 19 is controlled to lead the refrigerant to be introduced into the pipeline where the second throttling device 15 is located, the refrigerant passes through the freezing chamber evaporator 162 and then flows into the air return port of the compressor 11 through the liquid storage device 17, and the refrigeration of the freezing chamber is realized through the above circulation process. When the refrigerating chamber has a refrigerating requirement, the electromagnetic valve 19 is controlled to lead the refrigerant to the pipeline where the first throttling device 151 is located, the refrigerant passes through the refrigerating chamber evaporator 161 and the freezing chamber evaporator 162 in sequence and then flows into the air return port of the compressor 11 through the liquid storage device 17, and the refrigerating chamber is refrigerated through the circulation process.
The controller 10 may perform the refrigeration appliance control method in the following embodiments. As shown in fig. 2, the refrigeration apparatus control method includes:
s201, acquiring an environment temperature, a compartment temperature and a compartment set temperature.
After the compressor 11 is started, the controller 10 may acquire the temperatures measured by the respective sensors in real time to control the frequency of the compressor 11 according to the temperatures measured by the sensors.
S202, controlling the frequency of the compressor according to the ambient temperature.
The ambient temperature has a certain influence on the cooling capacity actually required by the compartment of the refrigeration equipment, and the frequency of the compressor 11 also has an influence on the cooling capacity which can be generated by the compressor. When the ambient temperature is lower, the cooling capacity actually required by the compartment of the refrigeration equipment is possibly less, and the compressor can be switched to a higher frequency after running at a lower frequency for a longer time; when the ambient temperature is higher, the cooling capacity actually required by the compartment of the refrigeration equipment is possibly more, and at the moment, the compressor can be switched to the higher frequency after the compressor runs at the lower frequency for a short time so as to generate more cooling capacity in the same time.
Specifically, as shown in fig. 3, when the controller 10 obtains that the ambient temperature is greater than or equal to the first ambient temperature, the compressor 11 is controlled to operate at the first frequency for the first switching time and then switch to operate at the second frequency, and after operating at the second frequency for the first switching time, switch to operate at the third frequency. Or, when the controller 10 obtains that the ambient temperature is less than the first ambient temperature and greater than or equal to the second ambient temperature, the compressor 11 is controlled to operate at the first frequency for a second switching time and then switched to operate at the second frequency. Or, when the controller 10 obtains that the ambient temperature is less than the second ambient temperature, the compressor 11 is controlled to operate at the first frequency for a third switching time and then switched to operate at the second frequency.
The third frequency is greater than the second frequency, the second frequency is greater than the first frequency, the third switching time is greater than the second switching time, and the second switching time is greater than the first switching time.
When refrigeration equipment needs to refrigerate, the compressor 11 is controlled to start and start to work, the compressor 11 firstly works at a lower frequency for a period of time and then works at a second lower frequency, the frequency of the compressor 11 is gradually switched from low to high during work, so that the compressor 11 does not work at the higher frequency within a certain time after the compressor 11 is started, and the problem that the user experience is influenced due to the fact that the compressor 11 directly works at the highest frequency to generate a large amount of noise when refrigeration is needed in the prior art is avoided.
The first ambient temperature and the second ambient temperature may be set by a user according to factors such as an ambient temperature of actual operation of the refrigeration equipment, and the first frequency, the second frequency, the third frequency, the fourth frequency, and the like may be divided according to how much cooling capacity is generated when the compressor 11 operates at different frequencies.
In some embodiments, the user may also set more or less ambient temperature thresholds according to the operating environment of the refrigeration equipment, such as the geographical location, and divide more or less operating frequencies according to how much cold is generated by the compressor 11 when operating at different frequencies, so as to control the refrigeration equipment more accurately.
For example, the first ambient temperature may be 37 degrees celsius, the second ambient temperature may be 32 degrees celsius, the ambient temperature measured by the first sensor 13 may be 28 degrees celsius, the first switching time may be 10 minutes, the second switching time may be 20 minutes, and the third switching time may be 30 minutes. The controller 10 obtains an ambient temperature of 28 degrees celsius, determines that the ambient temperature is less than a second ambient temperature of 32 degrees celsius, and controls the compressor 11 to operate at the first frequency for 30 minutes, and then switches to operate at the second frequency.
S203, adjusting the frequency of the compressor according to the difference value delta t between the temperature of the compartment and the set temperature and the time of the compressor running at the current frequency.
The cold quantity actually required by the compartment is determined through the difference delta t between the temperature of the compartment and the set temperature, and the running frequency of the compressor 11 is adjusted according to the difference delta t, so that the working efficiency of the compressor is improved, and the overall energy consumption of the refrigeration equipment is reduced.
Optionally, when the difference Δ t is less than 0 degrees celsius, the compressor 11 is controlled to stop working.
When the difference Δ t is less than 0 degrees celsius, indicating that the temperature of the compartment has reached the set temperature, at which the compressor is not required to continue cooling, the controller 10 controls the compressor 11 to stop operating to avoid unnecessary consumption.
Alternatively, as shown in fig. 4, when the acquired ambient temperature is greater than or equal to the first ambient temperature, the controller 10 may adjust the frequency of the compressor according to the following rule:
and when the difference value delta t meets the condition that t1 is larger than delta t which is larger than or equal to t2, controlling the compressor 11 to operate at the third frequency.
When the difference Δ t satisfies t2 > Δ t ≧ t3, the compressor 11 is controlled to operate at the second frequency.
And controlling the compressor 11 to operate at the fourth frequency when the time for which the compressor operates at the third frequency is greater than or equal to the first time and the difference delta t is greater than or equal to delta t and is greater than or equal to t 1.
And controlling the compressor 11 to continue to operate at the fourth frequency when the time for which the compressor operates at the fourth frequency is greater than or equal to the third time and the difference delta t is greater than or equal to delta t and is greater than or equal to t 1.
Wherein t1 is a first temperature threshold, t2 is a second temperature threshold, t3 is a third temperature threshold, the first temperature threshold t1, the second temperature threshold t2 and the third temperature threshold t3 satisfy t1 > t2 > t3, and the fourth frequency is greater than the third frequency.
According to the difference delta t between the temperature of the compartment and the set temperature and a plurality of temperature thresholds t1, t2 and t3, the cold energy actually required by the compartment is divided into a plurality of conditions, and the controller 10 adjusts the frequency of the compressor 11 according to the cold energy actually required by the compartment and the time of the compressor 11 running at the current frequency so as to ensure that the compressor 11 does not run at a higher frequency within a certain time after being started, thereby reducing the overall noise of the refrigeration equipment during running.
At a larger difference Δ t, indicating that more cooling capacity is actually needed in the compartment, the compressor 11 is adjusted to operate at a higher frequency to reduce the temperature of the compartment.
When the difference value delta t is larger and the operation time at the current frequency is longer, the fact that the cold energy generated by the operation of the compressor 11 at the current frequency cannot meet the cold energy actually needed by the compartment is indicated, the compressor 11 is adjusted to operate at a frequency higher than the current frequency to generate more cold energy, and when the current frequency is the highest frequency, the compressor 11 is controlled to continue to operate at the highest frequency to reduce the temperature of the compartment.
At a smaller difference deltat, indicating that less cooling capacity is actually needed in the compartment, the compressor 11 is adjusted to operate at a lower frequency to reduce noise and consumption.
The user may set more or fewer temperature thresholds to achieve more precise control based on factors such as the operating efficiency of the compressor, the size of the compartment, etc.
For example, the first temperature threshold t1 may be 6 degrees celsius, the second temperature threshold t2 may be 3 degrees celsius, the third temperature threshold t3 may be 0 degrees celsius, the first time may be 40 minutes, the temperature of the refrigerator compartment measured by the refrigerator compartment second sensor 141 may be 10 degrees celsius, and the set temperature of the refrigerator compartment may be 7 degrees celsius. The controller 10 obtains and determines the temperature of the refrigerating chamber and the set temperature of the refrigerating chamber, determines that the difference delta t is 3 ℃ and is equal to the second temperature threshold t2, the difference delta t meets the condition that t1 is larger than delta t which is larger than or equal to t2, and controls the compressor 11 to operate at a third frequency.
Optionally, as shown in fig. 5, when the obtained ambient temperature is less than the first ambient temperature and greater than or equal to the second ambient temperature, or the obtained ambient temperature is less than the second ambient temperature, the controller 10 may adjust the frequency of the compressor according to the following rule:
when the difference Δ t satisfies t1 > Δ t ≧ t3, the compressor 11 is controlled to operate at the second frequency.
And controlling the compressor 11 to operate at the third frequency when the time that the compressor 11 operates at the second frequency is greater than or equal to the second time and the difference delta t is greater than or equal to delta t and is greater than or equal to t 1.
And controlling the compressor 11 to continue to operate at the third frequency when the time that the compressor 11 operates at the third frequency is greater than or equal to the second time and the difference delta t is greater than or equal to delta t and is greater than or equal to t 1.
Wherein t1 is a first temperature threshold, t3 is a third temperature threshold, and the first temperature threshold t1 and the third temperature threshold t3 satisfy t1 > t 3.
When the ambient temperature is lower than the first ambient temperature, is greater than or equal to the second ambient temperature, or is lower than the second ambient temperature, it indicates that the current ambient temperature is lower, the compartment requires less cooling capacity, and the compressor 11 does not need to operate at the fourth frequency of the highest frequency to generate more cooling capacity. When the difference Δ t is small, it indicates that the temperature of the compartment is small from the set temperature, and it is not necessary to operate the compressor 11 at a higher frequency to generate more cooling capacity, so that the compressor 11 is controlled to operate at the second frequency, so that the compressor 11 performs cooling at a lower frequency and with less noise.
After the compressor 11 operates at the second frequency or the third frequency for the second time, and the difference Δ t between the temperature of the compartment and the set temperature is still large, it is determined that the cold energy generated by the operation of the compressor 11 at the second frequency is smaller than the cold energy actually required by the compartment, so that the frequency of the compressor 11 is increased to generate more cold energy, and the requirement of the compartment is met.
For example, the first temperature threshold t1 may be 6 degrees Celsius, the third temperature threshold t3 may be 0 degrees Celsius, the second time may be 30 minutes, the temperature of the freezer compartment measured by the freezer compartment second sensor 142 may be-7 degrees Celsius, and the set temperature of the freezer compartment may be-15 degrees Celsius. The controller 10 determines whether the compressor 11 is continuously operated at the second frequency for 30 minutes or more, and if so, the controller 10 obtains and determines that the difference Δ t between the temperature of the freezing chamber and the set temperature of the freezing chamber is 8 degrees celsius and greater than the first temperature threshold t1, and controls the compressor 11 to operate at the third frequency.
As shown in fig. 6, after the frequency of the compressor 11 is adjusted by the above-mentioned refrigeration equipment control method, the noise generated by the refrigerator is compared. The noise source is originally a main noise source when the compressor 11 is operated with noise, and is changed to a main noise source when the fan 12 is operated with noise. Specific noise levels are shown in table 1:
TABLE 1
Therefore, when the refrigerator runs, the overall noise is reduced to a certain degree compared with the original control method.
As shown in fig. 7, when the ambient temperature is 32 degrees celsius, a certain type of refrigerator performs refrigeration by using the above refrigeration equipment control method, and the refrigeration speed of the refrigerator is schematically compared with the original control method. The specific time spent in cooling each compartment of the refrigerator from 32 degrees celsius to the same temperature is shown in table 2:
TABLE 2
It can be seen that the time taken for all compartments to eventually reach the same temperature is slightly increased compared to the original control method, but the speed at which the freezer compartment temperature reaches a certain temperature is increased to some extent compared to the original control method.
As shown in fig. 8, when the ambient temperature is 32 degrees celsius, another type of refrigerator performs refrigeration by using the above refrigeration equipment control method, and the refrigeration speed of the refrigerator is schematically compared with the original control method. Table 3 shows the time for the freezer compartment temperature of the refrigerator to cool from 32 degrees celsius to a specific temperature:
TABLE 3
It can be seen that the time taken for the compartment to reach a particular temperature is increased to some extent, but not much, compared to the prior control method. Under some application scenes without quick refrigeration, a user can select to control the refrigeration equipment by the refrigeration equipment control method, and the noise generated in the operation process of the refrigeration equipment is reduced under the condition of reducing the refrigeration speed to a certain degree.
According to the control method of the refrigeration equipment, after the compressor is started, the operating frequency of the compressor is controlled according to the ambient temperature, and when the ambient temperature is greater than or equal to the first ambient temperature, the compressor is controlled to operate for the first switching time at the first frequency, then the compressor is controlled to operate for the first switching time at the second frequency, and then the compressor is switched to operate at the third frequency; when the ambient temperature is lower than the first ambient temperature and lower than or equal to the second ambient temperature, the compressor is controlled to operate at the first frequency for a second switching time and then is switched to operate at the second frequency; when the ambient temperature is lower than the second ambient temperature, the compressor is controlled to operate at the first frequency for the third switching time and then is switched to operate at the second frequency, so that the compressor is switched from the lower frequency to the second frequency gradually according to the difference of the ambient temperature after being started, and more noises generated by direct operation at the highest speed are avoided. The problem of among the prior art according to the ambient temperature control compressor's that the sensor detected frequency, make the cold volume that the compressor provided and the cold volume difference of demand great, the compressor frequently opens and stops or continuously operates, produces more noise is avoided.
Optionally, as shown in fig. 9, after S203, S204 is further included, which is configured to adjust the rotation speed of fan 12:
and S204, controlling the rotating speed of the fan according to the frequency of the compressor.
When the controller 10 adjusts the frequency of the compressor 11, the rotating speed of the fan 12 can be adjusted according to the current frequency of the compressor 11, and when the compressor 11 works at a higher frequency, the fan 12 is controlled to work at a higher rotating speed, so as to obtain a better refrigeration effect; when the compressor 11 is operated at a lower frequency, the fan 12 is controlled to operate at a lower rotational speed to reduce noise generated when the compressor 11 and the fan 12 are operated at the same time.
Embodiments of the present application provide a computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer, cause the computer to perform a refrigeration appliance control method as described in fig. 2-5 and 9.
Embodiments of the present application provide a computer program product containing instructions which, when executed on a computer, cause the computer to perform a refrigeration appliance control method as described in fig. 2-5 and 9.
An embodiment of the present application provides a refrigeration apparatus control device, including: a processor and a memory for storing a program, the processor calling the program stored in the memory to perform the refrigeration appliance control method as described in fig. 2-5 and 9.
Since the refrigeration equipment control device, the computer-readable storage medium, and the computer program product in the embodiments of the present application may be applied to the refrigeration equipment control method, the technical effects obtained by the method may also refer to the method embodiments, and the embodiments of the present application are not described herein again.
The above units may be individually configured processors, or may be implemented by being integrated into one of the processors of the controller, or may be stored in a memory of the controller in the form of program codes, and the functions of the above units may be called and executed by one of the processors of the controller. The processor described herein may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present Application.
It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
Claims (12)
1. A refrigeration apparatus, comprising:
a compartment forming a low-temperature storage space;
the compressor is a switchable frequency conversion compressor;
a first sensor for measuring an ambient temperature;
a second sensor for measuring the temperature of the compartment;
and a controller for:
after the compressor is started, when the environment temperature is acquired to be greater than or equal to a first environment temperature, controlling the compressor to operate at a first frequency for a first switching time and then switching to operate at a second frequency, and controlling the compressor to operate at the second frequency after operating at the first switching time and then switching to operate at a third frequency;
or when the environment temperature is acquired to be less than the first environment temperature and greater than or equal to a second environment temperature, controlling the compressor to operate at the first frequency for a second switching time and then switching to operate at the second frequency;
or when the obtained environment temperature is lower than the second environment temperature, controlling the compressor to operate at the first frequency for a third switching time and then switching to the second frequency operation;
the third frequency is greater than the second frequency, the second frequency is greater than the first frequency, the third switching time is greater than the second switching time, and the second switching time is greater than the first switching time.
2. The refrigeration appliance of claim 1 wherein the controller is further configured to:
and adjusting the frequency of the compressor according to the difference value delta t between the temperature of the compartment and the set temperature and the time for the compressor to run at the current frequency.
3. The refrigeration apparatus according to claim 2, wherein when it is obtained that the ambient temperature is greater than or equal to the first ambient temperature, the controller is further specifically configured to:
when the difference value delta t meets the condition that t1 is larger than or equal to delta t which is larger than or equal to t2, controlling the compressor to operate at the third frequency;
when the difference value delta t meets the condition that t2 is larger than or equal to delta t which is larger than or equal to t3, controlling the compressor to operate at the second frequency;
when the time of the compressor running at the third frequency is greater than or equal to the first time and the difference delta t is greater than or equal to delta t and t1, controlling the compressor to run at a fourth frequency,
wherein t1 is a first temperature threshold, t2 is a second temperature threshold, t3 is a third temperature threshold, the first temperature threshold t1, the second temperature threshold t2 and the third temperature threshold t3 satisfy t1 > t2 > t3, and the fourth frequency is greater than the third frequency.
4. The refrigeration apparatus according to claim 2, wherein when the ambient temperature is acquired to be less than the first ambient temperature and greater than or equal to the second ambient temperature, or the ambient temperature is acquired to be less than the second ambient temperature, the controller is further specifically configured to:
when the difference value delta t meets the condition that t1 is larger than or equal to delta t which is larger than or equal to t3, controlling the compressor to operate at the second frequency;
when the time of the compressor running at the second frequency is greater than or equal to a second time and the difference value delta t is greater than or equal to delta t and t1, controlling the compressor to run at the third frequency,
wherein t1 is a first temperature threshold, t3 is a third temperature threshold, and the first temperature threshold t1 and the third temperature threshold t3 satisfy t1 > t 3.
5. The refrigeration appliance according to any one of claims 1 to 4, further comprising: a fan; the controller is further configured to:
and controlling the rotating speed of the fan according to the frequency of the compressor.
6. A refrigeration apparatus control method, comprising:
after a compressor is started, when the obtained ambient temperature is greater than or equal to a first ambient temperature, controlling the compressor to operate at a first frequency for a first switching time and then switching to operate at a second frequency, and controlling the compressor to operate at the second frequency for the first switching time and then switching to operate at a third frequency;
or when the environment temperature is acquired to be less than the first environment temperature and greater than or equal to a second environment temperature, controlling the compressor to operate at the first frequency for a second switching time and then switching to operate at the second frequency;
or when the obtained environment temperature is lower than the second environment temperature, controlling the compressor to operate at the first frequency for a third switching time and then switching to the second frequency operation;
the third frequency is greater than the second frequency, the second frequency is greater than the first frequency, the third switching time is greater than the second switching time, and the second switching time is greater than the first switching time.
7. The method of claim 6, further comprising:
and adjusting the frequency of the compressor according to the difference value delta t between the temperature of the compartment and the set temperature and the time for which the compressor runs at the current frequency.
8. The method according to claim 7, wherein when it is obtained that the environmental temperature is greater than or equal to the first environmental temperature, the adjusting the frequency of the compressor according to the difference Δ t between the temperature of the compartment and the set temperature and the time for which the compressor operates at the current frequency comprises:
when the difference value delta t meets the condition that t1 is larger than or equal to delta t which is larger than or equal to t2, controlling the compressor to operate at the third frequency;
when the difference value delta t meets the condition that t2 is larger than or equal to delta t which is larger than or equal to t3, controlling the compressor to operate at the second frequency;
when the time of the compressor running at the third frequency is greater than or equal to the first time and the difference delta t is greater than or equal to delta t and t1, controlling the compressor to run at a fourth frequency,
wherein t1 is a first temperature threshold, t2 is a second temperature threshold, t3 is a third temperature threshold, the first temperature threshold t1, the second temperature threshold t2 and the third temperature threshold t3 satisfy t1 > t2 > t3, and the fourth frequency is greater than the third frequency.
9. The method of claim 7, wherein when the ambient temperature is acquired to be less than the first ambient temperature and greater than or equal to the second ambient temperature, or the ambient temperature is acquired to be less than the second ambient temperature, the adjusting the frequency of the compressor according to the difference Δ t between the temperature of the compartment and the set temperature and the time for which the compressor is operating at the current frequency comprises:
when the difference value delta t meets the condition that t1 is larger than or equal to delta t which is larger than or equal to t3, controlling the compressor to operate at the second frequency;
when the time of the compressor running at the second frequency is greater than or equal to a second time and the difference value delta t is greater than or equal to delta t and t1, controlling the compressor to run at the third frequency,
wherein t1 is a first temperature threshold, t3 is a third temperature threshold, and the first temperature threshold t1 and the third temperature threshold t3 satisfy t1 > t 3.
10. The method according to any one of claims 6-9, further comprising:
and controlling the rotating speed of the fan according to the frequency of the compressor.
11. A computer readable storage medium storing one or more programs, wherein the one or more programs comprise instructions, which when executed by a computer, cause the computer to perform the refrigeration appliance control method of any of claims 6-10.
12. A refrigeration apparatus control device, comprising: a processor and a memory, the memory for storing a program, the processor calling the program stored in the memory to perform the refrigeration appliance control method of any one of claims 6 to 10.
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| CN112617516B (en) * | 2020-12-07 | 2022-02-11 | 珠海格力电器股份有限公司 | Light assembly control method, showcase system and equipment |
| CN115435543B (en) * | 2021-06-02 | 2023-07-21 | 青岛海尔生物医疗股份有限公司 | Method and device for controlling variable frequency compressor of refrigerator and refrigerator |
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