CN113959173B - Control method of refrigeration equipment and refrigeration equipment - Google Patents

Control method of refrigeration equipment and refrigeration equipment Download PDF

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Publication number
CN113959173B
CN113959173B CN202111248326.2A CN202111248326A CN113959173B CN 113959173 B CN113959173 B CN 113959173B CN 202111248326 A CN202111248326 A CN 202111248326A CN 113959173 B CN113959173 B CN 113959173B
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China
Prior art keywords
fan
frequency
preset
compressor
rotating speed
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CN202111248326.2A
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Chinese (zh)
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CN113959173A (en
Inventor
于帮兴
曹洁
盛雨婷
樊炳国
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TCL Home Appliances Hefei Co Ltd
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TCL Home Appliances Hefei Co Ltd
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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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • 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
    • F25D2500/00—Problems to be solved
    • F25D2500/06—Stock management
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • 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 application discloses a control method of refrigeration equipment and the refrigeration equipment, wherein the method comprises the following steps: acquiring the ambient temperature of the refrigeration equipment and the operation information of the compressor; determining a target rotating speed of the fan according to the environmental temperature and the operation information; and controlling the fan to operate according to the target rotating speed. The rotation speed of the fan is adaptively adjusted according to the operation information of the compressor and the ambient temperature, so that the storage environment of the refrigeration equipment is stable, food is suitable to be stored, and the fresh-keeping and/or freezing effects of the food are guaranteed.

Description

Control method of refrigeration equipment and refrigeration equipment
Technical Field
The application relates to the technical field of refrigeration, in particular to a control method of refrigeration equipment and the refrigeration equipment.
Background
In the case of a variable frequency refrigerator, the variable frequency technology adopted by the variable frequency refrigerator is that a compressor of the refrigerator can change the rotating speed according to the requirements of a refrigerating chamber and a freezing chamber of the refrigerator through a temperature sensor and a control system in the refrigerator, so that the refrigerating capacity of the compressor is changed to adjust the temperatures of the refrigerating chamber and the freezing chamber.
The variable-frequency refrigerator is further provided with a fan, and the fan is used for accelerating the cooling capacity generated by the compressor to be blown away to a compartment of the variable-frequency refrigerator, so that the effects of rapidly cooling and preventing frosting caused by uneven cooling capacity are achieved.
However, the prior art has the following problems: when the refrigerating capacity generated by the compressor is changed greatly, the rotating speed of the fan cannot be adjusted adaptively, and the problems of frosting, icing or water drops in the refrigerator are easily caused, so that the problem that food is easy to deteriorate due to the discomfort of the storage environment is caused.
Disclosure of Invention
The embodiment of the application provides a control method of refrigeration equipment and the refrigeration equipment, so that the rotating speed of a fan can be adaptively adjusted to ensure the storage environment of the refrigeration equipment and improve the fresh-keeping and/or freezing effects of foods.
In a first aspect, an embodiment of the present application provides a method for controlling a refrigeration device, where the refrigeration device includes a compressor and a fan; the method comprises the following steps:
acquiring the ambient temperature of the refrigeration equipment and the operation information of the compressor;
determining a target rotating speed of the fan according to the environmental temperature and the operation information;
and controlling the fan to operate according to the target rotating speed.
In a second aspect, an embodiment of the present application further provides a control device of a refrigeration apparatus, including:
the information acquisition module is used for acquiring the environment temperature of the refrigeration equipment and the operation information of the compressor;
the rotating speed adjusting module is used for determining the target rotating speed of the fan according to the ambient temperature and the operation information;
And the control module is used for controlling the fan to run according to the target rotating speed.
In a third aspect, embodiments of the present application further provide a computer-readable storage medium having stored thereon a computer program which, when run on a computer, causes the computer to perform a method of controlling a refrigeration appliance as provided in any of the embodiments of the present application.
In a fourth aspect, embodiments of the present application further provide a refrigeration apparatus, where the refrigeration apparatus includes a compressor and a fan, and the compressor and the fan are controlled by a controller to perform a control method of the refrigeration apparatus as provided in any embodiment of the present application.
According to the technical scheme, the target rotating speed of the fan is determined according to the environment temperature and the operation information by acquiring the environment temperature and the operation information of the compressor, wherein the rotating speed of the fan can be adaptively adjusted according to the environment temperature and the operation information of the compressor, so that the rotating speed of the fan is adaptive to the refrigerating capacity of the compressor and the environment temperature, the problems of frosting, icing or water drops and the like in the refrigerating equipment are avoided, the storage environment of the refrigerating equipment is stable, food is suitable to be stored, and the fresh-keeping and/or freezing effects on the food are guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a control method of a refrigeration device according to an embodiment of the present application.
Fig. 2 is a flow chart of a first application scenario provided in the embodiment of the present application.
Fig. 3 is a schematic flowchart of a second application scenario provided in the embodiment of the present application.
Fig. 4 is a schematic structural diagram of a control device of a refrigeration apparatus according to an embodiment of the present application.
Fig. 5 is a schematic structural diagram of a refrigeration device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present application based on the embodiments herein.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The embodiment of the application provides a control method of a refrigeration device, and an execution main body of the control method of the refrigeration device may be a control device of the refrigeration device provided by the embodiment of the application, or a refrigeration device integrated with the control device of the refrigeration device. The control device of the refrigeration equipment can be realized in a hardware or software mode, the refrigeration equipment can be equipment with refrigeration functions such as a refrigerator and an air conditioner, and the equipment is provided with a fan and a compressor.
In the following embodiments, a variable-frequency refrigerator is taken as an example to describe the solution of the embodiments of the present application in detail, because the variety of refrigeration devices is various. The variable-frequency refrigerator comprises a compressor and a fan, the compressor can generate refrigerating capacity to cool the compartment of the variable-frequency refrigerator, the fan can uniformly blow the refrigerating capacity generated by the compressor into the compartment of the variable-frequency refrigerator, on one hand, the rapid dispersion of the refrigerating capacity is accelerated, the cooling speed of the compartment is accelerated, and on the other hand, the uneven distribution of the refrigerating capacity is prevented from frosting. However, the problem is that the fan and the compressor are controlled separately, so that the rotation speed of the fan cannot be adjusted adaptively according to the rotation speed of the compressor and the ambient temperature, and the stability of the storage environment of the variable-frequency refrigerator cannot be ensured, which is easy to cause food deterioration. For this purpose, the following technical scheme is proposed in the application:
Referring to fig. 1, fig. 1 is a flow chart of a control method of a refrigeration device according to an embodiment of the present application. The specific flow of the control method of the refrigeration equipment provided by the embodiment of the application may be as follows:
101. the ambient temperature of the refrigeration equipment and the operating information of the compressor are obtained.
The variable-frequency refrigerator is provided with a temperature sensor, and can acquire the ambient temperature.
When the ambient temperature increases, the controller in the variable frequency refrigerator controls the compressor to operate at a higher frequency, so that the compressor generates a higher refrigerating capacity to reduce the temperature of the compartment of the variable frequency refrigerator, and when the ambient temperature decreases, the controller in the variable frequency refrigerator controls the compressor to operate at a lower frequency, so that the refrigerating capacity generated by the compressor is reduced. Therefore, the temperature of the compartment of the variable-frequency refrigerator meets the set temperature requirement, and the food fresh-keeping and/or freezing effects are achieved.
In this embodiment, acquiring the operation information of the compressor includes acquiring whether the compressor is on or off, the operation frequency of the compressor, and the like.
102. And determining the target rotating speed of the fan according to the environment temperature and the operation information.
The fan speed can be adjusted according to the environment temperature and the operating frequency of the compressor, the fan speed can be adjusted according to the environment temperature, and the fan speed can be adjusted according to the operating frequency of the compressor, so that the fan speed can be adjusted to meet the adjustment requirement of the environment temperature, the refrigerating capacity requirement generated by the compressor can be met, a proper storage environment is provided, and the stability of the room temperature is ensured.
103. And controlling the fan to operate according to the target rotating speed.
In this embodiment, by acquiring the operation information of the ambient temperature and the compressor, and further associating the rotation speed of the fan with the operation information of the ambient temperature and the compressor, the rotation speed of the fan is adaptively adjusted according to the operation information of the ambient temperature and the compressor, for example, when the compressor stops operating, the rotation speed of the fan that needs to operate can be determined according to the ambient temperature, so as to meet the cooling capacity and air volume requirements of the refrigeration equipment, so that the compartment temperature of the refrigeration equipment is not easy to change greatly, thereby ensuring the storage environment stability of the refrigeration equipment, and improving the fresh-keeping and/or freezing effects on food; secondly, when the compressor operates, the rotating speed of the fan is determined according to the operating frequency of the compressor, so that the rotating speed of the fan is adaptively adjusted according to the refrigerating capacity of the compressor to meet the requirement of the refrigerating capacity, the refrigerating capacity in the refrigerating equipment is uniformly distributed, the cooling effect of the refrigerating equipment is not easy to be poor due to uneven refrigerating capacity, and the refrigerating effect is improved.
In particular, the present application is not limited by the order of execution of the steps described, and certain steps may be performed in other orders or concurrently without conflict.
The method described in the previous examples is described in further detail below by way of example.
In some embodiments, step 102 comprises:
1021. and determining the target rotating speed of the fan from a plurality of preset rotating speeds according to the environment temperature and the operation information, wherein the preset rotating speed is determined according to the relation between the rotating speed of the fan and the noise.
For example, for the adjustable rotation speed of the fan, a plurality of preset rotation speeds can be preset in the variable-frequency refrigerator, and when the rotation speed of the fan needs to be adjusted, one of the preset rotation speeds can be selected as a target rotation speed according with the environmental temperature and the operation information of the compressor, so that the operation requirements of the environmental temperature and the compressor are met.
The preset rotating speed is determined according to the relation between the rotating speed of the fan and the noise, and noise generated by the fan at different rotating speeds is screened in the mode, so that the noise generated by the rotating speed of the fan which is adjusted every time is as small as possible.
The fan of the variable frequency refrigerator is known to have noise and vibration when running, so that the quality requirement on the household environment is reduced, and for the aspect of noise reduction of the variable frequency refrigerator, the prior art adopts physical noise reduction means, namely noise reduction is performed by adopting materials such as soundproof cotton, but the noise existing in the variable frequency refrigerator cannot be greatly eliminated by the means, so that a mute environment cannot be provided for users. The control method of the refrigeration equipment provided by the application also screens out a plurality of preset rotating speeds as rotating speeds which can be used by the fan according to the relation between the rotating speeds of the fan and noise, so that the noise reduction effect can be achieved, and therefore, the following embodiments are also covered by the technical scheme provided by the application:
Based on the above embodiment, the present application further provides another embodiment, in which step 1021 includes:
when the compressor is in a starting state, determining a preset rotating speed matched with the working frequency from a plurality of preset rotating speeds as a target rotating speed of the fan, wherein the target rotating speed is in direct proportion to the working frequency.
When the compressor is in a shutdown state, determining a preset rotating speed matched with the ambient temperature from a plurality of preset rotating speeds as a target rotating speed of the fan, wherein the target rotating speed is in direct proportion to the ambient temperature.
The rotation speed of the fan can be determined directly according to the starting state or the shutdown state of the compressor, for example, when the compressor is in the starting state, the compressor can generate refrigerating capacity, and when the working frequency of the compressor is high, the generated refrigerating capacity is high, so that the speed of blowing off the refrigerating capacity is increased, frosting is avoided, the rotation speed of the fan is increased, and the effects of rapidly dispersing the refrigerating capacity and rapidly cooling can be achieved; when the working frequency of the compressor is low, the generated refrigerating capacity is small, and the rotating speed of the fan can be reduced due to the energy saving consideration.
Or, the compressor is intermittently stopped, when the compressor is stopped, that is, the compressor is in a shutdown state, in which case the compressor does not generate refrigerating capacity, but there is a problem in that when the difference between the ambient temperature and the room temperature of the inverter refrigerator is large, the room temperature is raised, and the fresh-keeping and/or freezing effects on foods are affected, so in the embodiment, the fan is arranged such that the fan still rotates when the compressor is in the shutdown state, and the rotation speed is raised along with the rise of the ambient temperature, so that the room temperature is maintained stable.
For the case that the difference between the ambient temperature and the compartment temperature of the variable-frequency refrigerator is large, for example, the ambient temperature is increased, and the refrigerating capacity in the compartment is insufficient, so that the compartment temperature can be increased, and the compartment temperature cannot reach the set temperature; for another example, a sudden placement of hot food in the compartment may cause the compartment to increase in temperature.
In this embodiment, the target rotation speed of the fan is determined according to the on state or the off state of the compressor, and the target rotation speed of the fan is selected from a plurality of preset rotation speeds, so that noise generated when the fan operates at the target rotation speed is ensured to be as small as possible, thereby not only meeting the requirement of low noise when the fan operates, but also meeting the requirement of refrigeration according to the ambient temperature, and the fan is controlled to operate at the target rotation speed, thereby realizing that noise generated by the fan is reduced essentially.
In some embodiments, when the compressor is in a start-up state, determining a preset rotation speed matched with the working frequency from a plurality of preset rotation speeds as a target rotation speed of the fan, wherein the target rotation speed is proportional to the working frequency, and the method comprises:
When the compressor is in a starting state, judging whether the working frequency belongs to a preset frequency interval;
if yes, determining candidate rotating speeds matched with a preset frequency interval from a plurality of preset rotating speeds;
and determining the target rotating speed of the fan from the candidate rotating speeds according to the environment temperature.
For example, when determining the rotation speed of the fan, the working frequency of the compressor may be obtained first, and the preset frequency interval in which the working frequency is located may be determined, where each preset frequency interval corresponds to a different candidate rotation speed, and after determining the working frequency of the compressor, the preset frequency interval in which the working frequency is located is matched, and further, according to the correspondence between the preset frequency interval and the candidate rotation speeds, a plurality of candidate rotation speeds are obtained, where the candidate rotation speeds are proportional to the frequency of the preset frequency interval. And then, selecting a target rotating speed from a plurality of candidate rotating speeds according to the ambient temperature, and further controlling the fan to operate according to the target rotating speed.
The method can enable the target rotating speed of the fan to be related to the working frequency of the compressor and the ambient temperature, and the noise of the selected target rotating speed in the operation process is low, so that the stability of the temperature of the compartment of the variable-frequency refrigerator can be ensured, the ambient noise can be reduced, a mute environment is provided for a user, and the fresh-keeping or/and freezing effects of food are improved.
In some embodiments, determining the target rotational speed of the fan from the candidate rotational speeds based on the ambient temperature includes:
acquiring the chamber temperature of the refrigeration equipment;
and determining the target rotating speed of the fan from the candidate rotating speeds according to the ambient temperature and the intermediate temperature.
Illustratively, when selecting the target speed from a plurality of candidate speeds, the correlation between the ambient temperature and the intermediate temperature is also considered, as exemplified herein, e.g., the candidate speeds haveThree rotational speeds F, which are successively increased 0 、F 1 And F 2 When the temperature is higher and the set value of the intermediate temperature is higher, F can be selected from the candidate rotational speeds 2 As the target rotation speed, F can be selected from the candidate rotation speeds when the temperature is low and the set value of the chamber temperature is low 0 As the target rotation speed, F may be selected from the candidate rotation speeds when the temperature is high and the set value of the chamber temperature is low, or when the temperature is low and the set value of the chamber temperature is high 1 As the target rotation speed.
In order to better understand the scheme of determining the target rotation speed of the fan according to the operation information of the compressor and the environmental temperature in the embodiment of the present application, the application scenario is illustrated herein, where the first application scenario is illustrated when the compressor is in a start state, and the second application scenario is illustrated when the compressor is in a shutdown state, as follows:
Referring to fig. 2, fig. 2 is a flow chart of a first application scenario provided in the embodiment of the present application, and as shown in fig. 2, when the compressor is in a start-up state, a preset frequency interval of the compressor is divided into (0, p) 0 ]、(P 0 ，P 1 ]、(P 1 ，P 2 ]、(P 2 ，P 3 ]、(P 3 ，P 4 ]Greater than P 4 Preset frequency interval (0, P 0 ]The corresponding candidate rotation speed is F 0 I.e. when the operating frequency of the compressor is within a preset frequency range (0, P 0 ]When the fan is at F 0 Operating as a target rotational speed; preset frequency interval (0, P) 0 ]The corresponding candidate rotation speed is F 0 And F 1 At this time, it is necessary to determine that the ambient temperature and the room temperature, for example, the ambient temperature is in one set temperature range and the room temperature is in another set temperature range, taking the temperature range of 18 ℃ to 24 ℃ and the set temperature of the freezing room as-20 ℃, when the ambient temperature is greater than 18 ℃ and less than 24 ℃ and the freezing set temperature is greater than-20 ℃, the fan takes F 0 Operating as target rotational speed, otherwise, the fan is operated at F 1 Operating as a target rotational speed; preset frequency interval (P) 1 ，P 2 ]The corresponding candidate rotation speed is F 1 And F 2 When the ambient temperature is more than 18 ℃ and less than 24 ℃ and the freezing set temperature is more than-20 ℃, the fan takes F 1 Operating as target rotational speed, otherwise, the fan is operated at F 2 Operating as a target rotational speed; preset frequency interval (P) 2 ，P 3 ]The corresponding candidate rotation speed is F 3 I.e. when the operating frequency of the compressor is in a preset frequency interval (P 2 ，P 3 ]When the fan is at F 3 Operating as a target rotational speed; preset frequency interval (P) 3 ，P 4 ]The corresponding candidate rotation speed is F 3 I.e. when the operating frequency of the compressor is in a preset frequency interval (P 3 ，P 4 ]When the fan is at F 3 Operating as a target rotational speed; and when the working frequency of the compressor is greater than P 4 When the fan is at F 3 Operating as a target rotational speed.
Referring to fig. 3, fig. 3 is a flow chart of a second application scenario provided in the embodiment of the present application, as shown in fig. 3, when the compressor is in a shutdown state, an ambient temperature interval may be preset, and the preset ambient temperature interval is associated with a rotation speed of the fan, where the preset ambient temperature interval is divided into less than T 0 、(T 0 ，T 1 ]、(T 1 ，T 2 ]、(T 2 ，T 3 ]、(T 3 ，T 4 ]Greater than T 4 When the ambient temperature is less than T 0 When the fan is smaller than T 0 Corresponding preset rotation speed F 1 Operating as a target rotational speed when the ambient temperature is at (T 0 ，T 1 ]In the interval, the fan is divided into (T) 0 ，T 1 ]Corresponding preset rotation speed F 1 Or F 0 Operating as target rotational speed, wherein, if before defrosting, F is used 0 Operating at a target rotational speed, if after defrosting, at F 1 Operating as a target rotational speed; when the ambient temperature is at (T 1 ，T 2 ]In the interval, the fan is divided into (T) 1 ，T 2 ]Corresponding preset rotation speed F 1 Operating as a target rotational speed; when the ambient temperature is at (T 2 ，T 3 ]In the interval, the fan is divided into (T) 2 ，T 3 ]Corresponding preset rotation speed F 2 Operating as a target rotational speed; when the ambient temperature is at (T 3 ，T 4 ]In the interval, the fan is divided into (T) 3 ，T 4 ]Corresponding preset rotation speed F 3 Operating as a target rotational speed; when the ambient temperature is greater than T 4 When the fan is greater than T 4 Corresponding preset rotation speed F 4 Operating as a target rotational speed.
It should be noted that, in the application scenario P 0 <P 1 <P 2 <P 3 <P 4 、F 0 <F 1 <F 2 <F 3 <F 4 、T 0 <T 1 <T 2 <T 3 <T 4 。
In addition to the above two application scenes, there is a third application scene, in which the wind speed can be directly set to F 3 For example, the environment temperature detects the trouble, the variable frequency refrigerator opens the fast cold mode, the variable frequency refrigerator blocks its quick-freezing mode, the first start after defrosting etc.. When the variable-frequency refrigerator operates at night, whether the variable-frequency refrigerator is in a night operation state or not can be judged through the acquired time, if so, the compressor is automatically controlled to perform downshifting operation, the defrosting period of the variable-frequency refrigerator is prolonged, the normal operation time of refrigeration of the variable-frequency refrigerator is ensured, and noise generated by the compressor can be reduced through downshifting operation.
The preset rotation speed of the fan is determined according to the relation between the rotation speed and the noise, and in the following embodiments, a screening scheme of the preset rotation speed is specifically described, and it should be noted that, the screening scheme of the preset rotation speed provided in the following embodiments may be applied to a parameter setting stage before the factory of the variable-frequency refrigerator, and may also be adopted when the rotation speed of the fan needs to be adjusted after the factory of the variable-frequency refrigerator, and a specific application stage is not limited herein, and only needs to be described, the plurality of preset rotation speeds adopted in the above embodiments are obtained by screening from a rotatable rotation speed range of the fan with relatively low noise values as screening conditions, so that noise generated when the fan is operated is reduced.
In one embodiment, the step of screening the preset rotation speed includes the following steps:
determining a non-resonance rotating speed interval of the fan;
dividing the non-resonant rotational speed interval into a plurality of non-resonant rotational speed subintervals;
sampling each non-resonance rotating speed subinterval with a preset sampling frequency to obtain a plurality of sampling point rotating speeds of each non-resonance rotating speed subinterval;
for each non-resonance rotating speed subinterval, controlling the fan to operate according to the rotating speed of the sampling point to obtain first power consumption data and first noise data corresponding to the rotating speed of each sampling point;
And according to the first power consumption data and the first noise data, taking the rotation speed of the sampling point which meets the first preset power consumption condition and has the minimum noise as the preset rotation speed of each non-resonance rotation speed subinterval.
For example, a rotational speed interval in which resonance exists may be removed from a rotational speed range in which the fan is operable, wherein the rotational speed interval in which resonance exists in the rotational speed is referred to as a resonance rotational speed interval, and the rest is an off-resonance rotational speed interval, and then the intervals are re-divided according to a plurality of non-resonance rotational speed intervals, so that rotational speeds included in the divided off-resonance rotational speed sub-intervals are approximately the same. And then respectively processing each non-resonance rotating speed subinterval, sampling in each non-resonance rotating speed subinterval to obtain a plurality of sampling point rotating speeds, then controlling the fan to operate at each sampling point rotating speed to obtain first noise data and first power consumption data corresponding to the plurality of sampling point rotating speeds, wherein the noise data refer to noise values, the power consumption data refer to power consumption of the fan during operation, and then selecting the sampling point rotating speed with relatively smaller noise values and power consumption as the preset rotating speed of the non-resonance rotating speed subinterval according to the first noise data and the second power consumption data.
The method includes selecting one of a plurality of sampling point rotating speeds as a preset rotating speed according to first power consumption data and first noise data, for example, if a noise value of a certain sampling point rotating speed is minimum and power consumption is minimum, the sampling point rotating speed is used as the preset rotating speed, for example, when the noise value is smaller and the power consumption is higher or the noise value is larger and the power consumption is smaller, a plurality of sampling point rotating speeds are selected according to a first preset power consumption condition, and then the noise value is minimum from the selected plurality of sampling point rotating speeds to be used as the preset rotating speed.
In this embodiment, by first screening out preset rotational speeds meeting smaller power consumption and noise in each rotational speed interval, and taking the corresponding preset rotational speeds of each rotational speed interval as the rotational speeds selectable when the fan operates, when the fan operates at any one of a plurality of preset rotational speeds as a target rotational speed, the effects of low noise and small power consumption can be achieved, so that the operation performance of the variable frequency refrigerator is improved, and a comfortable indoor environment is provided for a user and the variable frequency refrigerator is more energy-saving. Moreover, the screened preset rotating speed is combined with the running information of the compressor and the environment temperature, so that the stability of the compartment environment of the variable-frequency refrigerator can be ensured, the energy-saving and noise-reducing requirements can be ensured, and the performance of the variable-frequency refrigerator is greatly improved.
Based on the working frequency of the compressor mentioned in the above embodiment, the screening manner of the preset rotation speed of the fan may also be referred to, and a plurality of preset frequencies may be selected from the frequency intervals where the compressor may operate as optional working frequencies when the compressor operates, so as to reduce noise generated when the compressor operates and reduce power consumption of the compressor.
In one embodiment, the step of screening the preset frequency includes the following steps, namely, before step 101:
acquiring a plurality of preset carrier frequencies, and determining a noise spectrum when each preset carrier frequency loads a preset test frequency;
determining a target carrier frequency from a plurality of preset carrier frequencies according to a noise distribution interval in a noise frequency spectrum;
determining a non-resonant frequency interval when the compressor is operated based on the target carrier frequency;
dividing the non-resonant frequency interval into a plurality of non-resonant frequency subintervals;
sampling each non-resonance frequency subinterval with a preset sampling frequency to obtain a plurality of sampling point frequencies of each non-resonance frequency subinterval;
For each non-resonance frequency subinterval, controlling the compressor to operate according to the sampling point frequency to obtain second power consumption data and second noise data corresponding to each sub-sampling point frequency;
and according to the second power consumption data and the second noise data, taking the frequency of the sub-sampling point which meets a second preset power consumption condition and has the minimum noise as the preset frequency of each non-resonance rotating speed subinterval to obtain a plurality of preset frequencies.
Illustratively, the compressor has a default carrier frequency when purchased, but is also configured to modulate the frequency based on the default carrier frequency to obtain a plurality of preset carrier frequencies, and select an optimal preset carrier frequency from the plurality of preset carrier frequencies to replace the default carrier frequency.
When the controllable compressor is based on a preset test frequency, each preset carrier frequency is used as a load to operate, so that a noise distribution interval in a generated noise spectrum is analyzed, and an optimal carrier frequency, namely a target carrier frequency, is determined according to the noise distribution interval. For example, the preset test frequency may be a common working frequency of the compressor, and the analysis noise distribution interval may analyze noise at high frequency and low frequency, and when the noise distribution interval corresponding to a certain preset carrier frequency is relatively smaller in both high frequency and low frequency, the preset carrier frequency is used as a target carrier frequency, so that noise generated when the compressor is operated is greatly reduced.
After the target carrier frequency is obtained, the compressor is controlled to operate at the target carrier frequency, and the non-resonant frequency interval when the compressor operates based on the target carrier frequency is tested, and then the non-resonant frequency interval is divided in the manner of dividing the non-resonant rotating speed interval in the embodiment, and the preset frequency of each non-resonant frequency subinterval is obtained.
The preset rotating speed of the fan and the preset frequency of the compressor are screened in the mode, the requirements of low power consumption and low noise of the fan during operation can be met, the requirements of low power consumption and low noise of the compressor during operation can also be met, the operation performance of the fan and the compressor is improved, the noise generated during operation of the fan and the compressor is greatly reduced, the energy consumption is greatly reduced, and the requirements of environmental protection and noise reduction are met.
Based on this embodiment, the method further comprises a scheme when the compressor is operated according to a preset frequency, i.e. after the ambient temperature is obtained, the method further comprises:
determining a target frequency of the compressor from a plurality of preset frequencies according to the ambient temperature;
the compressor is controlled to operate at a target frequency.
Wherein the operating frequency of the compressor is increased according to an increase in the ambient temperature, so that when the ambient temperature is high, a higher frequency is selected as the target frequency from among the preset frequencies, and when the ambient temperature is low, a lower frequency is selected as the target frequency from among the preset frequencies.
In addition, the frequency conversion refrigerator in the prior art has the following problems: in the in-service use, because the fan frequently starts to shut down, easily cause the fan to start the ability decline, perhaps cause the fan trouble, for promoting the starting ability of fan, in this application embodiment, still provide the fan mode of starting in order to improve the fan and start the ability for the fan gives attention to when the operation and starts ability and noise reduction demand.
Based on this, in an embodiment, step 101 is preceded by:
when the fan is started, a highest rotational speed is selected from a plurality of candidate rotational speeds of the fan.
And controlling the fan to operate at the highest rotating speed when the fan is started for the first time, and detecting a feedback signal when the fan operates.
And if the feedback signal is detected when the fan operates, controlling the fan to operate at the highest rotating speed for a preset period of time, and then executing to acquire the environment temperature of the refrigeration equipment and the operation information of the compressor.
Illustratively, the startup capability of the blower is proportional to the operating voltage, the higher the blower speed,therefore, when the fan is started each time, the fan is operated at the highest rotation speed of the plurality of preset rotation speeds selected in the embodiment, namely, F 4 The fan can run, and the rotating speed climbs the slope when the fan is started, so the fan can be arranged to F 4 The operation is carried out for a preset time, and the feedback signal is detected after the operation voltage of the fan is stable, so that the problem of false alarm caused by detection errors can be avoided.
When the feedback signal is detected, the fan is indicated to be operating normally, and then the steps 101 and the following steps can be directly executed. It should be noted that, here, the basis for determining that the feedback signal is detected is that the signal is not in a high or low condition, and if the signal is in a high or low condition, it is regarded that the feedback signal is not detected.
When the feedback signal is not detected, the fan is not started successfully, and the fan is continuously controlled to F 4 The continuous operation is restarted for n times, the situation that the fan is not operated any more due to one-time start failure is avoided, and the probability of the start failure of the fan can be reduced to the minimum through the continuous restarting.
After n times of continuous restarting, when the fan stably operates, judging whether the feedback signal can be detected again, and if so, executing the steps 101 and the following steps.
If the fan cannot be restarted and operated for a preset time, continuously detecting a fan feedback signal again, and if the feedback signal is not detected, confirming the fan fault, so that fault alarm can be carried out.
It should be noted that the preset duration mentioned in this embodiment may be determined according to the actual requirement, and the preset duration running at each restart may be gradually reduced.
In this embodiment, by setting the starting operation mode of the fan, on one hand, the starting capability of the fan can be improved, and on the other hand, the noise generated when the fan operates can be small and the energy consumption is low.
It can be seen from the above that, the control method of the refrigeration equipment provided by the embodiment of the invention can enable the rotation speed of the fan to be adaptively adjusted according to the environmental temperature and the operation information of the compressor, so that the room temperature of the refrigeration equipment is not easy to change greatly, thereby ensuring the storage environment of the refrigeration equipment to be stable, improving the fresh-keeping and/or freezing effects on food, secondly, enabling the cold quantity in the refrigeration equipment to be uniformly distributed, and not easy to cause the cooling effect of the refrigeration equipment to be poor due to uneven cold quantity, thereby improving the refrigeration effect. Moreover, can be under the stable prerequisite of room ambient temperature of assurance, can enough satisfy the consumption and the noise is less when the fan is operated, also can satisfy the compressor and be less when the power consumption and the noise are operated, and then improved the running performance of fan and compressor simultaneously, greatly reduced the noise that produces when fan and compressor are operated, on the one hand clean the user and locate the environmental noise, improve environmental quality, and save the cost of making an uproar that falls, on the other hand greatly reduced the energy consumption, realized the environmental protection demand. Secondly, can also improve the starting capability of fan to promote fan performance.
In an embodiment a control device 200 of a refrigeration appliance is also provided. Referring to fig. 4, fig. 4 is a schematic structural diagram of a control device 200 of a refrigeration apparatus according to an embodiment of the present application. The control device 200 of the refrigeration equipment is applied to the refrigeration equipment, and the control device 200 of the refrigeration equipment comprises an information acquisition module 201, a rotation speed adjustment module 202 and a control module 203, wherein the control device comprises the following components:
an information acquisition module 201 for acquiring an ambient temperature of the refrigeration equipment and operation information of the compressor;
the rotation speed adjusting module 202 is configured to determine a target rotation speed of the fan according to the environmental temperature and the operation information;
and the control module 203 is used for controlling the fan to run according to the target rotating speed.
In some embodiments, the rotational speed adjustment module 202 is further configured to:
and determining the target rotating speed of the fan from a plurality of preset rotating speeds according to the environment temperature and the operation information, wherein the preset rotating speed is determined according to the relation between the rotating speed of the fan and the noise. In some embodiments, the operational information includes on-off status and operating frequency;
the rotational speed adjustment module 202 is also configured to:
when the compressor is in a starting state, determining a preset rotating speed matched with the working frequency from a plurality of preset rotating speeds as a target rotating speed of the fan, wherein the target rotating speed is in direct proportion to the working frequency;
When the compressor is in a shutdown state, determining a preset rotating speed matched with the ambient temperature from a plurality of preset rotating speeds as a target rotating speed of the fan, wherein the target rotating speed is in direct proportion to the ambient temperature.
In some embodiments, the speed adjustment module 202 is further configured to:
when the compressor is in a starting state, judging whether the working frequency belongs to a preset frequency interval;
if yes, determining candidate rotating speeds matched with a preset frequency interval from a plurality of preset rotating speeds;
and determining the target rotating speed of the fan from the candidate rotating speeds according to the environment temperature.
In some embodiments, the speed adjustment module 202 is further configured to:
acquiring the chamber temperature of the refrigeration equipment;
and determining the target rotating speed of the fan from the candidate rotating speeds according to the ambient temperature and the intermediate temperature.
In some embodiments, the control device 200 further comprises: a test module;
the test module is used for:
determining a non-resonance rotating speed interval of the fan;
dividing the non-resonant rotational speed interval into a plurality of non-resonant rotational speed subintervals;
sampling each non-resonance rotating speed subinterval with a preset sampling frequency to obtain a plurality of sampling point rotating speeds of each non-resonance rotating speed subinterval;
for each non-resonance rotating speed subinterval, controlling the fan to operate according to the rotating speed of the sampling point to obtain first power consumption data and first noise data corresponding to the rotating speed of each sampling point;
And according to the first power consumption data and the first noise data, taking the rotation speed of the sampling point which meets the first preset power consumption condition and has the minimum noise as the preset rotation speed of each non-resonance rotation speed subinterval.
In some embodiments, the test module is to further:
acquiring a plurality of preset carrier frequencies, and determining a noise spectrum when each preset carrier frequency loads a preset test frequency;
determining a target carrier frequency from a plurality of preset carrier frequencies according to a noise distribution interval in a noise frequency spectrum;
determining a non-resonant frequency interval when the compressor is operated based on the target carrier frequency;
dividing the non-resonant frequency interval into a plurality of non-resonant frequency subintervals;
sampling each non-resonance frequency subinterval with a preset sampling frequency to obtain a plurality of sampling point frequencies of each non-resonance frequency subinterval;
for each non-resonance frequency subinterval, controlling the compressor to operate according to the sampling point frequency to obtain second power consumption data and second noise data corresponding to each sub-sampling point frequency;
and according to the second power consumption data and the second noise data, taking the frequency of the sub-sampling point which meets a second preset power consumption condition and has the minimum noise as the preset frequency of each non-resonance rotating speed subinterval to obtain a plurality of preset frequencies.
In some embodiments, the speed adjustment module 202 is further configured to:
determining a target frequency of the compressor from a plurality of preset frequencies according to the ambient temperature;
the control module 203 is further configured to: the compressor is controlled to operate at a target frequency.
In some embodiments, the control module 203 is further configured to:
when the fan is started, selecting the highest rotating speed from a plurality of candidate rotating speeds of the fan;
controlling the fan to run at the highest rotating speed when the fan is started for the first time, and detecting a feedback signal when the fan runs;
if a feedback signal is detected when the fan is running, the control information acquisition module 201 performs acquisition of the environmental temperature of the refrigeration equipment and the running information of the compressor after the fan is controlled to run at the highest rotation speed for a preset time.
It should be noted that, the control device 200 of the refrigeration equipment provided in the embodiment of the present application belongs to the same concept as the control method of the refrigeration equipment in the foregoing embodiment, and any method provided in the control method embodiment of the refrigeration equipment may be implemented by the control device 200 of the refrigeration equipment, and a detailed implementation process of the method is referred to in the control method embodiment of the refrigeration equipment and is not described herein again.
It can be seen from the above that, the control device 200 of the refrigeration equipment provided by the embodiment of the application can enable the rotation speed of the fan to be adaptively adjusted according to the ambient temperature and the operation information of the compressor, so that the room temperature of the refrigeration equipment is not easy to change greatly, the storage environment of the refrigeration equipment is ensured to be stable, the fresh-keeping and/or freezing effects on food are improved, secondly, the cold quantity in the refrigeration equipment is uniformly distributed, the cooling effect of the refrigeration equipment is not easy to be poor due to uneven cold quantity, and the refrigeration effect is improved. Moreover, can be under the stable prerequisite of room ambient temperature of assurance, can enough satisfy the consumption and the noise is less when the fan is operated, also can satisfy the compressor and be less when the power consumption and the noise are operated, and then improved the running performance of fan and compressor simultaneously, greatly reduced the noise that produces when fan and compressor are operated, on the one hand clean the user and locate the environmental noise, improve environmental quality, and save the cost of making an uproar that falls, on the other hand greatly reduced the energy consumption, realized the environmental protection demand. Secondly, can also improve the starting capability of fan to promote fan performance.
The embodiment of the application also provides a refrigeration device 300, where the refrigeration device 300 may be a device with a refrigeration function, such as a refrigerator, an air conditioner, and the like, and the device has a fan 305 and a compressor 304, and the compressor 304 and the fan 305 are controlled by the controller 301 to execute the control method of the refrigeration device 300 provided in the embodiment of the application. As shown in fig. 5, fig. 5 is a schematic structural diagram of a refrigeration apparatus 300 according to an embodiment of the present application. The refrigeration apparatus 300 includes a blower 305, a compressor 304, and a controller 301, the controller 301 including a processor 302 having one or more processing cores, a memory 303 having one or more computer readable storage media, and a computer program stored on the memory 303 and executable on the processor 302. Wherein the processor 302 is electrically connected to the memory 303. It will be appreciated by those skilled in the art that the configuration of the refrigeration apparatus 300 illustrated in fig. 5 is not limiting of the refrigeration apparatus 300, and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
The processor 302 is a control center of the refrigeration appliance 300, connects the various parts of the entire refrigeration appliance 300 using various interfaces and lines, and performs various functions and processes of the refrigeration appliance 300 by running or loading software programs and/or modules stored in the memory 303, and invoking data stored in the memory 303, thereby performing overall monitoring of the refrigeration appliance 300.
In the embodiment of the present application, the processor 302 in the refrigeration device 300 loads the instructions corresponding to the processes of one or more application programs into the memory 303 according to the following steps, and the processor 302 executes the application programs stored in the memory 303, so as to implement various functions:
acquiring the ambient temperature of the refrigeration appliance 300 and the operation information of the compressor 304;
determining a target rotating speed of the fan 305 according to the environmental temperature and the operation information;
the fan 305 is controlled to operate at a target rotational speed.
The specific implementation of each operation above may be referred to the previous embodiments, and will not be described herein.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
It can be seen from the above that, the refrigeration equipment 300 provided in this embodiment can enable the rotation speed of the fan 305 to be adaptively adjusted according to the ambient temperature and the operation information of the compressor 304, so that the room temperature of the refrigeration equipment 300 is not easy to change greatly, thereby ensuring the storage environment of the refrigeration equipment 300 to be stable, improving the fresh-keeping and/or freezing effects on food, and secondly, enabling the cold quantity in the refrigeration equipment 300 to be uniformly distributed, and not easy to cause the cooling effect of the refrigeration equipment 300 to be poor due to uneven cold quantity, so as to improve the refrigeration effect. Moreover, can be under the stable prerequisite of room ambient temperature of assurance, can enough satisfy fan 305 consumption and noise when the operation is less, also can satisfy the compressor 304 power consumption and noise when the operation is less equally, and then improved the operational performance of fan 305 and compressor 304 simultaneously, greatly reduced the noise that produces when fan 305 and compressor 304 operate, on the one hand clean the user and locate the environmental noise, improve environmental quality, and save the cost of making an uproar and reduce the energy consumption on the other hand greatly, realized the environmental protection demand. Second, the startup capability of the blower 305 can also be increased to improve the performance of the blower 305.
Those of ordinary skill in the art will appreciate that all or a portion of the steps of the various methods of the above embodiments may be performed by instructions, or by instructions controlling associated hardware, which may be stored in a computer-readable storage medium and loaded and executed by a processor.
To this end, the embodiments of the present application provide a computer readable storage medium, and those skilled in the art will understand that all or part of the steps in implementing the methods of the embodiments described above may be implemented by a program to instruct related hardware, and the program may be stored in a computer readable storage medium, where the program when executed includes the following steps:
acquiring the ambient temperature of the refrigeration equipment and the operation information of the compressor;
determining a target rotating speed of the fan according to the environmental temperature and the operation information;
and controlling the fan to operate according to the target rotating speed.
The specific implementation of each operation above may be referred to the previous embodiments, and will not be described herein.
The storage medium may be ROM/RAM, magnetic disk, optical disk, etc. The steps in the control method of any refrigeration equipment provided in the embodiment of the present application may be executed by the computer program stored in the storage medium, so that the beneficial effects that can be achieved by the control method of any refrigeration equipment provided in the embodiment of the present application may be achieved, which are detailed in the previous embodiment and are not described herein again.
The above describes in detail a control method of a refrigeration device and the refrigeration device provided in the embodiments of the present application, and specific examples are applied to describe the principles and embodiments of the present application, where the description of the above examples is only used to help understand the method and core idea of the present application; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the contents of the present specification should not be construed as limiting the present application in summary.

Claims (5)

1. A control method of a refrigeration apparatus, characterized in that the refrigeration apparatus includes a compressor and a fan; the method comprises the following steps:
determining a non-resonance rotating speed interval of the fan;
dividing the non-resonant speed interval into a plurality of non-resonant speed subintervals;
sampling each non-resonance rotating speed subinterval with a preset sampling frequency to obtain a plurality of sampling point rotating speeds of each non-resonance rotating speed subinterval;
for each non-resonance rotating speed subinterval, controlling the fan to operate according to the rotating speed of the sampling point to obtain first power consumption data and first noise data corresponding to the rotating speed of each sampling point;
According to the first power consumption data and the first noise data, taking the rotation speed of the sampling point which meets the first preset power consumption condition and has the minimum noise as the preset rotation speed of each non-resonance rotation speed subinterval;
acquiring the environment temperature of the refrigeration equipment and the operation information of the compressor, wherein the operation information comprises a switching-on and switching-off state and working frequency;
when the compressor is in a starting state, judging whether the working frequency belongs to a preset frequency interval;
if yes, determining candidate rotating speeds matched with the preset frequency interval from the preset rotating speeds;
obtaining the room temperature of the refrigeration equipment, and determining the target rotating speed of the fan from the candidate rotating speeds according to the ambient temperature and the room temperature;
when the compressor is in a shutdown state, determining a preset rotating speed matched with the environment temperature from a plurality of preset rotating speeds as a target rotating speed of the fan, wherein the target rotating speed is in direct proportion to the environment temperature;
and controlling the fan to run according to the target rotating speed.
2. The method of claim 1, wherein prior to said obtaining the ambient temperature of the refrigeration unit and the operating information of the compressor, the method further comprises:
Acquiring a plurality of preset carrier frequencies, and determining a noise spectrum when each preset carrier frequency loads a preset test frequency;
determining a target carrier frequency from a plurality of preset carrier frequencies according to a noise distribution interval in the noise spectrum;
determining a non-resonant frequency interval when the compressor is operating based on the target carrier frequency;
dividing the non-resonant frequency interval into a plurality of non-resonant frequency subintervals;
sampling each non-resonance frequency subinterval with a preset sampling frequency to obtain a plurality of sampling point frequencies of each non-resonance frequency subinterval;
for each non-resonance frequency subinterval, controlling the compressor to operate according to the sampling point frequency to obtain second power consumption data and second noise data corresponding to each sub-sampling point frequency;
and according to the second power consumption data and the second noise data, taking the frequency of the sub-sampling point which meets a second preset power consumption condition and has the minimum noise as the preset frequency of each non-resonance rotating speed subinterval to obtain a plurality of preset frequencies.
3. The method of claim 2, wherein after the obtaining the ambient temperature of the refrigeration unit, the method further comprises:
Determining a target frequency of the compressor from the plurality of preset frequencies according to the ambient temperature;
and controlling the compressor to operate according to the target frequency.
4. The method of claim 1, wherein prior to said obtaining the ambient temperature of the refrigeration unit and the operating information of the compressor, the method further comprises:
when the fan is started, selecting the highest rotating speed from a plurality of candidate rotating speeds of the fan;
controlling the fan to run at the highest rotating speed when the fan is started for the first time, and detecting a feedback signal when the fan runs;
and if the feedback signal is detected when the fan operates, controlling the fan to operate at the highest rotating speed for a preset period of time, and then executing to acquire the environment temperature of the refrigeration equipment and the operation information of the compressor.
5. A refrigeration apparatus comprising a compressor and a fan, the compressor and the fan being controlled by a controller to perform the control method of the refrigeration apparatus according to any one of claims 1 to 4.
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