CN115164510A - Combined refrigerator control method and refrigerator thereof - Google Patents

Combined refrigerator control method and refrigerator thereof Download PDF

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Publication number
CN115164510A
CN115164510A CN202210925094.8A CN202210925094A CN115164510A CN 115164510 A CN115164510 A CN 115164510A CN 202210925094 A CN202210925094 A CN 202210925094A CN 115164510 A CN115164510 A CN 115164510A
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China
Prior art keywords
refrigerator
basic
rotating speed
compressor
fan
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CN202210925094.8A
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Chinese (zh)
Inventor
刘全义
李清松
陈开松
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Changhong Meiling Co Ltd
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Changhong Meiling Co Ltd
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Priority to CN202210925094.8A priority Critical patent/CN115164510A/en
Publication of CN115164510A publication Critical patent/CN115164510A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • F25B2600/00—Control issues
    • F25B2600/01—Timing
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0253—Compressor control by controlling speed with variable speed
    • 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
    • F25B2600/00—Control issues
    • F25B2600/11—Fan speed control

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The invention provides a control method of a combined refrigerator and the refrigerator thereof, which not only ensures the refrigeration effect of the basic refrigerator, but also solves the problem of high noise of the combined refrigerator by acquiring the working states of all basic refrigerators of the combined refrigerator, collecting, analyzing and comparing the relevant information of all basic refrigerators of the combined refrigerator, and reasonably and effectively adjusting the running rotating speeds of a plurality of compressors and fans in real time according to the refrigeration requirement degrees of different basic refrigerators.

Description

Combined refrigerator control method and refrigerator thereof
Technical Field
The invention relates to the technical field of refrigeration, in particular to a combined refrigerator control method and a refrigerator.
Background
In recent years, the consumption of household appliances is upgraded, the personalized requirements of users on household refrigerators are increasingly highlighted, and combined refrigerators gradually become a new development trend in the field of household appliances because the combined refrigerators can meet the requirements of free matching and combination of users.
The combined refrigerator is formed by splicing or freely combining a plurality of basic refrigerators of the same or different types, is large in overall atmosphere, attractive and strong in individuation, and each basic refrigerator is provided with a complete refrigeration module and a control module, has complete refrigerator functions and can be used independently.
However, the combined refrigerator is objectively provided with a plurality of compressors and fans which are started to operate simultaneously, the more the number of basic refrigerators in the combined refrigerator is, the more the noise sources of the combined refrigerator are, the larger the noise is, and therefore the problems that the product noise is large, the experience effect is poor and the like are caused.
Disclosure of Invention
The application provides a control method of a combined refrigerator and the refrigerator thereof, which solves the problem of high noise caused by the simultaneous starting and operation of a plurality of compressors and fans in the combined refrigerator.
In a first aspect, the present application provides a method for controlling a combination refrigerator, applied to a combination refrigerator including at least two basic refrigerators, the basic refrigerators including a compressor and a fan, the method including:
and after a preset time interval, determining the refrigerating quantity according to the working state of each basic refrigerator, wherein the refrigerating quantity is the quantity of the basic refrigerators in the refrigerating state.
And if the refrigerating quantity is more than 1, acquiring basic parameters of the basic refrigerator in a refrigerating state, wherein the basic parameters comprise the actual temperature at the current moment, the starting point temperature and the stopping point temperature.
And determining the refrigeration parameters and the refrigeration priority of the basic refrigerator in the refrigeration state according to the basic parameters.
And if the refrigerating quantity is 2, dividing the basic refrigerator in the refrigerating state into a first basic refrigerator and a second basic refrigerator according to the refrigerating priority, wherein the refrigerating priority of the first basic refrigerator is greater than that of the second basic refrigerator.
And if the refrigeration parameter of the first basic refrigerator is greater than or equal to 0, generating a first control instruction, wherein the first control instruction is used for indicating the compressor rotating speed and the fan rotating speed of the first basic refrigerator to operate according to the target rotating speed.
If the refrigeration parameter of the first basic refrigerator is less than 0, generating a second control instruction, wherein the second control instruction is used for adjusting the rotating speed of a compressor of the first basic refrigerator to be reduced to 2 gears lower than the target rotating speed, and when the rotating speed of the compressor is less than or equal to a first low gear, the speed reduction processing is not carried out, and adjusting the rotating speed of a fan of the first basic refrigerator to be reduced to 1 gear lower than the target rotating speed, and when the rotating speed of the fan is less than or equal to a second low gear, the speed reduction processing is not carried out.
If the refrigeration parameter of the second basic refrigerator is greater than or equal to 0, generating a third control instruction, wherein the third control instruction is used for adjusting the rotating speed of a compressor of the second basic refrigerator to be reduced to 2 gears lower than the target rotating speed, and when the rotating speed of the compressor is less than or equal to a first low gear, the speed reduction processing is not carried out, and adjusting the rotating speed of a fan of the second basic refrigerator to be reduced to 1 gear lower than the target rotating speed, and when the rotating speed of the fan is less than or equal to a second low gear, the speed reduction processing is not carried out.
And if the refrigeration parameter of the second basic refrigerator is less than 0, generating a fourth control instruction, wherein the fourth control instruction is used for adjusting the rotating speed of a compressor of the second basic refrigerator to be reduced to 4 gears lower than the target rotating speed, and when the rotating speed of the compressor is less than or equal to a first low gear, the speed reduction processing is not carried out, adjusting the rotating speed of a fan of the second basic refrigerator to be reduced to 2 gears lower than the target rotating speed, and when the rotating speed of the fan is less than or equal to a second low gear, the speed reduction processing is not carried out. In one implementation, if the cooling amount is 0, an instruction for instructing compressors and fans of all basic refrigerators to remain off is generated.
In one implementation, if the cooling amount is 1, an instruction for instructing the compressor rotation speed and the fan rotation speed of the basic refrigerator in the cooling state to operate at the target rotation speed is generated.
In one implementation, the time interval ranges from 1 minute to 30 minutes.
In one implementation, the step of determining the refrigeration parameter of the basic refrigerator in the refrigeration state according to the basic parameter comprises:
using the formula Δ T 1 ＝T-T ON And calculating the refrigeration parameters.
Wherein, delta T 1 For the refrigeration parameter, T is the actual temperature of the basic refrigerator in the refrigerated state, T ON The starting point temperature of the basic refrigerator in the refrigerating state.
In one implementation, the step of determining a cooling priority of the basic refrigerator in a cooling state according to the basic parameter includes:
using the formula Δ T 2 ＝T-T OFF Calculating the refrigeration priority.
Wherein T is the actual temperature of the basic refrigerator in a refrigerating state, T OFF For the base refrigerator in the refrigerating state, the stop temperature, Δ T 2 The method is used for representing the refrigeration priority of the basic refrigerator in the refrigeration state.
In a second aspect, the present application provides a method for controlling a combination refrigerator, applied to a combination refrigerator including at least two basic refrigerators, the basic refrigerators including a compressor and a fan, the method comprising:
determining the refrigerating quantity according to the working state of each basic refrigerator at preset time intervals, wherein the refrigerating quantity is the quantity of the basic refrigerators in the refrigerating state;
if the refrigerating quantity is larger than 1, acquiring basic parameters of a basic refrigerator in a refrigerating state, wherein the basic parameters comprise the actual temperature at the current moment, the starting point temperature and the stopping point temperature;
determining the refrigeration parameters and the refrigeration priority of the basic refrigerator in a refrigeration state according to the basic parameters;
if the refrigerating quantity is 3, dividing the basic refrigerators in a refrigerating state into a first basic refrigerator, a second basic refrigerator and a third basic refrigerator according to the refrigerating priority, wherein the refrigerating priority of the first basic refrigerator is higher than that of the second basic refrigerator, and the refrigerating priority of the second basic refrigerator is higher than that of the third basic refrigerator;
if the refrigeration parameter of the first basic refrigerator is greater than or equal to 0, generating a first control instruction, wherein the first control instruction is used for indicating the compressor rotating speed and the fan rotating speed of the first basic refrigerator to operate according to a target rotating speed;
if the refrigeration parameter of the first basic refrigerator is less than 0, generating a second control instruction, wherein the second control instruction is used for adjusting the rotating speed of a compressor of the first basic refrigerator to be reduced to 4 gears lower than a target rotating speed, and when the rotating speed of the compressor is less than or equal to a first low gear, speed reduction processing is not carried out, adjusting the rotating speed of a fan of the first basic refrigerator to be reduced to 2 gears lower than the target rotating speed, and when the rotating speed of the fan is less than or equal to a second low gear, speed reduction processing is not carried out;
if the refrigeration parameter of the second basic refrigerator is greater than or equal to 0, generating a third control instruction, wherein the third control instruction is used for adjusting the rotating speed of a compressor of the second basic refrigerator to be reduced to 2 gears lower than the target rotating speed, and when the rotating speed of the compressor is less than or equal to a first low gear, the speed reduction processing is not carried out, and adjusting the rotating speed of a fan of the second basic refrigerator to be reduced to 1 gear lower than the target rotating speed, and when the rotating speed of the fan is less than or equal to a second low gear, the speed reduction processing is not carried out;
if the refrigeration parameter of the second basic refrigerator is less than 0, generating a fourth control instruction, wherein the fourth control instruction is used for adjusting the rotating speed of a compressor of the second basic refrigerator to be reduced to 4 gears lower than a target rotating speed, and when the rotating speed of the compressor is less than or equal to a first low gear, speed reduction processing is not carried out, adjusting the rotating speed of a fan of the second basic refrigerator to be reduced to 2 gears lower than the target rotating speed, and when the rotating speed of the fan is less than or equal to a second low gear, speed reduction processing is not carried out;
and generating a fifth control instruction, wherein the fifth control instruction is used for adjusting the rotating speed of the compressor of the third basic refrigerator to be reduced to 4 gears lower than the target rotating speed and not performing speed reduction processing when the rotating speed of the compressor is less than or equal to a first low gear, and adjusting the rotating speed of the fan of the third basic refrigerator to be reduced to 2 gears lower than the target rotating speed and not performing speed reduction processing when the rotating speed of the fan is less than or equal to a second low gear.
In a second aspect, the present application provides a refrigerator comprising a combination refrigerator of at least two basic refrigerators, the basic refrigerators comprising a compressor and a fan, the refrigerator being configured to perform the combination refrigerator control method of any one of the above.
According to the technical scheme, the working states of all basic refrigerators of the combined refrigerator are obtained, the relevant information of all basic refrigerators of the combined refrigerator is collected, analyzed and compared, and the running rotating speeds of the compressors and the fans are reasonably and effectively adjusted in real time according to the refrigeration requirement degrees of different basic refrigerators, so that the refrigeration effect of the basic refrigerator is guaranteed, and the problem of high noise of the combined refrigerator is solved.
Drawings
FIG. 1 is a schematic diagram of an exemplary basic refrigerator structure provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of an exemplary combination refrigerator provided in an embodiment of the present application;
fig. 3 is a flowchart of a control method for a combination refrigerator provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The combined refrigerator is formed by splicing or freely combining a plurality of basic refrigerators of the same or different types, and can meet the requirements of free matching and combination of users. As shown in fig. 1, an exemplary basic refrigerator provided in the present embodiment is provided. As shown in fig. 2, for the exemplary combination refrigerator provided in this embodiment, the combination refrigerator 2 is formed by sequentially combining 3 basic refrigerators 1, namely, a two-door basic refrigerator, a single-door basic refrigerator and a three-door basic refrigerator, each basic refrigerator 1 has an independent refrigeration system and a control system, has a complete refrigerator function, and can be used independently. Along with the more basic refrigerator quantity, the more combination formula refrigerator noise source is more, and a plurality of compressors and fan start operation simultaneously lead to the noise big, the worse problem of user experience effect.
In order to solve the problems, the application provides a control method of a combined refrigerator, which can be used for automatically and effectively adjusting the running rotating speed of a compressor and a fan in real time by acquiring the working state of each basic refrigerator, so that the refrigeration effect of the basic refrigerator is ensured, and the problem of high noise of the combined refrigerator is solved.
The combined refrigerator control method is suitable for combined refrigerators formed by splicing two or more basic refrigerators, each basic refrigerator comprises a compressor and a fan, the compressor is used for providing power for the refrigeration cycle of the refrigerator, and the fan is operated to realize air supply of a storage chamber, and the method comprises the following steps:
and after a preset time interval, determining the refrigerating quantity according to the working state of each basic refrigerator, wherein the refrigerating quantity is the quantity of the basic refrigerators in the refrigerating state in the working state.
And if the refrigerating quantity is more than 1, acquiring basic parameters of the basic refrigerator in a refrigerating state, wherein the basic parameters comprise the actual temperature at the current moment, the temperature of a starting point and the temperature of a stopping point.
And determining the refrigeration parameters and the refrigeration priority of the basic refrigerator in the refrigeration state according to the basic parameters.
And generating a control instruction according to the refrigeration parameter and the refrigeration priority, wherein the control instruction is used for adjusting the rotating speed of a compressor and the rotating speed of a fan of the basic refrigerator in a refrigeration state.
In this embodiment, the control method may be implemented by a controller configured to execute the control method, or the basic refrigerator may be divided into a main module refrigerator and a sub-module refrigerator, where the main module refrigerator is configured to collect refrigeration information of the sub-module refrigerator, output refrigeration parameters and refrigeration priorities of the basic refrigerators through comprehensive analysis and calculation, generate a control instruction, and send the control instruction to the basic refrigerators for execution. Illustratively, as shown in fig. 1, the base refrigerator 21 is configured as a main module refrigerator, the base refrigerator 22 and the base refrigerator 23 are configured as sub-module refrigerators, the base refrigerator 21 collects refrigeration information of the base refrigerator 21 and the base refrigerator 23, outputs refrigeration parameters and refrigeration priority of each base refrigerator through comprehensive analysis and calculation, generates a control command to be sent to each base refrigerator, and each base refrigerator adjusts the compressor rotation speed and the fan rotation speed of the base refrigerator in response to the control command.
The control method will be further described below by taking the basic refrigerator 21 shown in fig. 2 as a main module refrigerator, the basic refrigerator 22 and the basic refrigerator 23 as sub-module refrigerators as examples.
The basic refrigerator 21 needs to collect the refrigeration requirements of each basic refrigerator once every preset time interval, and determines whether each basic refrigerator is in a refrigeration state according to the working state of each basic refrigerator, so as to determine the refrigeration number N value of each basic refrigerator. The working states comprise a refrigerating state and a non-refrigerating state, and the refrigerating quantity is the quantity of basic refrigerators in the refrigerating state. The value range of the time interval is 1-30 minutes, and a user can set the time interval according to actual requirements.
If all the basic refrigerators are in the non-refrigeration state, the value of N is 0, the basic refrigerator 21 generates an instruction for instructing the compressors and fans of all the basic refrigerators to be kept off, and the basic refrigerator 21, the basic refrigerator 22 and the basic refrigerator 23 respond to the instruction to keep the compressors and fans in the off state.
If only one basic refrigerator is in a refrigerating state, N is 1, for example, the basic refrigerator 21 and the basic refrigerator 22 are in a non-refrigerating state, the basic refrigerator 23 is in a refrigerating state, the basic refrigerator 21 generates an instruction for instructing the compressor rotation speed and the fan rotation speed of the basic refrigerator 23 to operate at target rotation speeds, and the basic refrigerator 23 maintains the compressor rotation speed and the fan rotation speed to operate at the target rotation speeds in response to the instruction. The target rotating speed is the current rotating speed of the compressor and the fan when the basic refrigerator is in a refrigerating state.
And if a plurality of basic refrigerators are in a refrigerating state, namely N is greater than 1, generating a control instruction for adjusting the rotating speed of a compressor and the rotating speed of a fan of each basic refrigerator in the refrigerating state according to the refrigerating parameters and the refrigerating priority of each basic refrigerator. The following are exemplary embodiments of a method for controlling a plurality of basic refrigerators in a cooling state.
Example one
And determining whether each basic refrigerator is in a refrigerating state according to the working state of each basic refrigerator, and judging the refrigerating quantity N value. If two basic refrigerators are in a cooling state, the value of N is 2, and the basic refrigerator 21 is in a non-cooling state, and the basic refrigerator 22 and the basic refrigerator 23 are in a cooling state.
Basic parameters of the basic refrigerator 22 and the basic refrigerator 23 are acquired, and the basic parameters include an actual temperature at the current time, a starting point temperature and a stopping point temperature. The starting point temperature is a starting point temperature of basic refrigerator refrigeration, and the stopping point temperature is a stopping point temperature of basic refrigerator refrigeration. And determining the refrigeration parameters and the refrigeration priorities of the basic refrigerator 22 and the basic refrigerator 23 according to the basic parameters.
Setting the actual temperature of the basic refrigerator as T and the starting point temperature of the refrigerator as T ON The temperature of the stop point of the refrigerator is T OFF 。
Using the formula Δ T 1 ＝T-T ON Calculating the refrigeration parameter, Δ T 1 For the refrigeration parameters, the actual temperatures of the basic refrigerator 22 and the basic refrigerator 23 at the present time and the starting point temperature are substituted into the formula to obtain the refrigeration parameters of the basic refrigerator 22 and the basic refrigerator 23.
Using the formula Δ T 2 ＝T-T OFF Calculating the refrigeration priority, Δ T 2 For characterising the refrigeration priority, Δ T, of a basic refrigerator in a refrigerated state 2 The larger the cooling priority. The actual temperatures of the base refrigerator 22 and the base refrigerator 23 at the present time and the stop point temperature are substituted into the formula to obtain the refrigeration priorities of the base refrigerator 22 and the base refrigerator 23.
The basic refrigerator 21 generates a control instruction according to the refrigeration parameter and the refrigeration priority, and the control instruction is used for adjusting the compressor rotation speed and the fan rotation speed of the basic refrigerator 22 and the basic refrigerator 23.
The basic refrigerators in a cooling state are classified into a first basic refrigerator and a second basic refrigerator according to the cooling priority, assuming Δ T of the basic refrigerator 22 2 Greater than Δ T of the base refrigerator 23 2 I.e., the refrigeration priority of the base refrigerator 22 is greater than that of the base refrigerator 23. The base refrigerators 22 and 23 are first and second base refrigerators, respectively.
If Δ T of the base refrigerator 22 1 And if the rotation speed of the compressor and the rotation speed of the fan of the basic refrigerator 22 are not less than 0, generating a first control instruction, wherein the first control instruction is used for indicating the rotation speed of the compressor and the rotation speed of the fan of the basic refrigerator 22 to operate according to the target rotation speed. The base refrigerator 22 maintains the compressor rotation speed and the fan rotation speed to be operated at the target rotation speeds in response to the first control instruction.
If Δ T of the base refrigerator 22 1 If the rotating speed of the compressor is less than 0, generating a second control instruction, wherein the second control instruction is used for adjusting the rotating speed of the compressor of the basic refrigerator 22 to be reduced to 2 gears lower than the target rotating speed, and when the rotating speed of the compressor is less than or equal to the first low gear, the speed reduction processing is not carried out; and adjusting the fan speed of the basic refrigerator 22 to be reduced to 1 gear lower than the target speed, and not performing speed reduction processing when the fan speed is less than or equal to a second low gear.
If Δ T of the basic refrigerator 23 1 If the rotating speed of the compressor is more than or equal to 0, generating a third control instruction, wherein the third control instruction is used for adjusting the rotating speed of the compressor of the basic refrigerator 23 to be reduced to 2 gears lower than the target rotating speed, and when the rotating speed of the compressor is less than or equal to the first low gear, the speed reduction processing is not carried out; and adjusting the fan speed of the basic refrigerator 23 to be reduced to 1 gear lower than the target speed, and not performing speed reduction processing when the fan speed is less than or equal to a second low gear.
If Δ T of the basic refrigerator 23 1 If the rotating speed of the compressor is less than 0, generating a fourth control instruction, wherein the fourth control instruction is used for adjusting the rotating speed of the compressor of the basic refrigerator 23 to be reduced to 4 gears lower than the target rotating speed, and when the rotating speed of the compressor is less than or equal to the first low gear, the speed reduction processing is not carried out; and adjusting the fan speed of the basic refrigerator 23 to be reduced to 2 gears lower than the target speed, and when the fan speed is lower than or equal to the target speedAnd when the gear is equal to the second low gear, the speed reduction processing is not carried out.
The first low gear is the lowest gear of a compressor which guarantees the refrigeration performance of the basic refrigerator, and the second low gear is the lowest gear of a fan which guarantees the refrigeration performance of the basic refrigerator. Illustratively, the gears of the compressor are six gears S1, S2, S3, S4, S5 and S6 in sequence from high to low, the gears of the fan are seven gears P1, P2, P3, P4, P5, P6 and P7 in sequence from high to low, the first low gear is the gear S6, and the second low gear is the gear P7. If the current rotating speed of the compressor is S4 gear, the rotating speed of the compressor needs to be adjusted to be reduced by 2 gears, and the rotating speed of the compressor is adjusted to S6 gear; if the current rotating speed of the compressor is S5 gear, the rotating speed of the compressor needs to be adjusted to be reduced by 4 gears, the rotating speed of the compressor is adjusted to be S6 gear, and only 1 gear is reduced; if the current rotating speed of the compressor is S6 gear and even lower than S6 gear, speed reduction is not carried out, and the operating wind speed of the compressor is kept unchanged.
Example two
And under the condition that all the basic refrigerators are powered on, determining whether each basic refrigerator is in a refrigerating state according to the working state of each basic refrigerator, and judging the refrigerating quantity N value. If three basic refrigerators are in a cooling state, N is 3, as shown in fig. 3, taking the basic refrigerator 21, the basic refrigerator 22, and the basic refrigerator 23 all in a cooling state as an example for explanation.
And determining the refrigeration parameters and the refrigeration priority of the basic refrigerators 21, 22 and 23 according to the actual temperature, the starting point temperature and the stopping point temperature of the current moment of each basic refrigerator. The method steps for determining the refrigeration parameters and the refrigeration priority can refer to the steps in the first embodiment, and are not described herein again.
The basic refrigerator 21 generates a control instruction according to the refrigeration parameter and the refrigeration priority, and the control instruction is used for adjusting the compressor rotation speed and the fan rotation speed of the basic refrigerator 21, the basic refrigerator 22 and the basic refrigerator 23.
The basic refrigerators in the cooling state are classified into a first basic refrigerator, a second basic refrigerator and a third basic refrigerator according to the cooling priority, and it is assumed that the cooling priority of the basic refrigerator 21 is greater than that of the basic refrigerator 22, and the basic ice isThe cooling priority of the box 22 is greater than that of the base refrigerator 23. As shown in fig. 3, the base refrigerators 21, 22 and 23 are a first base refrigerator, a second base refrigerator and a third base refrigerator, respectively, corresponding to Δ T in fig. 3 2max Refrigerator, delta T 2mid Refrigerator and delta T 2min A refrigerator. The lowest gear of the compressor for ensuring the refrigeration performance of the basic refrigerator is S6 gear, and the lowest gear of the fan for ensuring the refrigeration performance of the basic refrigerator is P7 gear.
If Δ T of the basic refrigerator 21 1 And if the rotating speed of the compressor is more than or equal to 0, generating a first control instruction, wherein the first control instruction is used for indicating that the rotating speed of the compressor and the rotating speed of the fan of the basic refrigerator 21 run according to the target rotating speed. The base refrigerator 21 maintains the compressor rotation speed and the fan rotation speed to be operated at the target rotation speeds in response to the first control instruction.
If Δ T of the basic refrigerator 21 1 If the speed is less than 0, generating a second control instruction, wherein the second control instruction is used for adjusting the rotating speed of the compressor of the basic refrigerator 21 to be reduced to 4 gears lower than the target rotating speed, and when the rotating speed of the compressor is less than or equal to S6 gear, the speed reduction is not carried out; and adjusting the fan rotating speed of the basic refrigerator 21 to be reduced to 2 gears lower than the target rotating speed, and when the fan rotating speed is less than or equal to P7 gear, not performing speed reduction treatment.
If Δ T of the base refrigerator 22 1 If the rotation speed of the compressor is not less than 0, generating a third control instruction, wherein the third control instruction is used for adjusting the rotation speed of the compressor of the basic refrigerator 22 to be reduced to 2 gears lower than the target rotation speed, and when the rotation speed of the compressor is not more than S6 gear, the speed reduction processing is not carried out; and adjusting the fan rotating speed of the basic refrigerator 22 to be reduced to 1 gear lower than the target rotating speed, and when the fan rotating speed is less than or equal to P7 gear, not performing speed reduction treatment.
If Δ T of the base refrigerator 22 1 If the rotation speed is less than 0, a fourth control instruction is generated, the fourth control instruction is used for adjusting the rotation speed of the compressor of the basic refrigerator 22 to be reduced to 4 gears lower than the target rotation speed, and when the rotation speed of the compressor is less than or equal to S6 gear, speed reduction processing is not carried out; and adjusting the fan rotating speed of the basic refrigerator 22 to be reduced to 2 gears lower than the target rotating speed, and when the fan rotating speed is less than or equal to P7 gear, not performing speed reduction treatment.
Generating a fifth control instruction, wherein the fifth control instruction is used for adjusting the rotating speed of the compressor of the basic refrigerator 23 to be reduced to 4 gears lower than the target rotating speed, and when the rotating speed of the compressor is less than or equal to S6 gear, the speed reduction processing is not carried out; and adjusting the fan rotating speed of the basic refrigerator 23 to be 2 gears lower than the target rotating speed, and when the fan rotating speed is not more than P7 gears, not performing speed reduction treatment.
The basic refrigerator 21 judges once again according to the method every t minutes, and the value range of t is 1-30 minutes.
In summary, the present application provides a method for controlling a combination refrigerator and a refrigerator thereof, wherein the refrigerator is a combination refrigerator including at least two basic refrigerators, each of the basic refrigerators includes a compressor and a fan, and the method includes: determining the refrigerating quantity according to the working state of each basic refrigerator at preset time intervals, wherein the refrigerating quantity is the quantity of the basic refrigerators in the refrigerating state; if the refrigerating quantity is larger than 1, acquiring basic parameters of a basic refrigerator in a refrigerating state, wherein the basic parameters comprise the actual temperature at the current moment, the starting point temperature and the stopping point temperature; determining the refrigeration parameters and the refrigeration priority of the basic refrigerator in a refrigeration state according to the basic parameters; and generating a control instruction according to the refrigeration parameters and the refrigeration priority, wherein the control instruction is used for adjusting the rotating speed of a compressor and the rotating speed of a fan of the basic refrigerator in a refrigeration state. This application is collected, analysis and comparative calculation to the relevant information of all basic refrigerators of combination formula refrigerator to according to the refrigeration demand degree of different basic refrigerators, the gear of a plurality of compressor operation rotational speeds of real-time reasonable effective adjustment and fan operation rotational speed guarantees under the whole refrigeration performance prerequisite of combination formula refrigerator, effective noise reduction.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims (8)

1. A combined refrigerator control method is applied to a combined refrigerator comprising at least two basic refrigerators, wherein each basic refrigerator comprises a compressor and a fan, and the method comprises the following steps:
determining the refrigerating quantity according to the working state of each basic refrigerator at preset time intervals, wherein the refrigerating quantity is the quantity of the basic refrigerators in the refrigerating state;
if the refrigerating quantity is larger than 1, basic parameters of a basic refrigerator in a refrigerating state are obtained, wherein the basic parameters comprise the actual temperature at the current moment, the temperature of a starting point and the temperature of a stopping point;
determining the refrigeration parameters and the refrigeration priority of the basic refrigerator in a refrigeration state according to the basic parameters;
if the refrigerating quantity is 2, dividing the basic refrigerator in the refrigerating state into a first basic refrigerator and a second basic refrigerator according to the refrigerating priority, wherein the refrigerating priority of the first basic refrigerator is greater than that of the second basic refrigerator;
if the refrigeration parameter of the first basic refrigerator is greater than or equal to 0, generating a first control instruction, wherein the first control instruction is used for indicating the compressor rotating speed and the fan rotating speed of the first basic refrigerator to operate according to a target rotating speed;
if the refrigeration parameter of the first basic refrigerator is less than 0, generating a second control instruction, wherein the second control instruction is used for adjusting the rotating speed of a compressor of the first basic refrigerator to be reduced to 2 gears lower than a target rotating speed, and when the rotating speed of the compressor is less than or equal to a first low gear, the speed reduction processing is not carried out, and adjusting the rotating speed of a fan of the first basic refrigerator to be reduced to 1 gear lower than the target rotating speed, and when the rotating speed of the fan is less than or equal to a second low gear, the speed reduction processing is not carried out;
if the refrigeration parameter of the second basic refrigerator is greater than or equal to 0, generating a third control instruction, wherein the third control instruction is used for adjusting the rotating speed of a compressor of the second basic refrigerator to be reduced to 2 gears lower than the target rotating speed, and when the rotating speed of the compressor is less than or equal to a first low gear, the speed reduction processing is not carried out, and adjusting the rotating speed of a fan of the second basic refrigerator to be reduced to 1 gear lower than the target rotating speed, and when the rotating speed of the fan is less than or equal to a second low gear, the speed reduction processing is not carried out;
and if the refrigeration parameter of the second basic refrigerator is less than 0, generating a fourth control instruction, wherein the fourth control instruction is used for adjusting the rotating speed of a compressor of the second basic refrigerator to be reduced to 4 gears lower than the target rotating speed, and when the rotating speed of the compressor is less than or equal to a first low gear, the fourth control instruction is not used for speed reduction processing, and adjusting the rotating speed of a fan of the second basic refrigerator to be reduced to 2 gears lower than the target rotating speed, and when the rotating speed of the fan is less than or equal to a second low gear, the fourth control instruction is not used for speed reduction processing.
2. The control method of the combination refrigerator according to claim 1, wherein if the cooling amount is 0, a command for instructing compressors and fans of all the basic refrigerators to remain off is generated.
3. The control method of the combination refrigerator as claimed in claim 1, wherein if the cooling amount is 1, a command for instructing a compressor rotation speed and a fan rotation speed of the base refrigerator in a cooling state to operate at a target rotation speed is generated.
4. The control method of the combination refrigerator according to claim 1, wherein the time interval ranges from 1 minute to 30 minutes.
5. The combination refrigerator control method of claim 1, wherein the step of determining the cooling parameter of the base refrigerator in a cooling state according to the base parameter comprises:
using the formula Δ T 1 ＝T-T ON Calculating the refrigeration parameter;
wherein, delta T 1 For the refrigeration parameter, T is the actual temperature of the basic refrigerator in the refrigerated state, T ON The starting point temperature of the basic refrigerator in the refrigerating state.
6. The combination refrigerator control method of claim 5, wherein the step of determining the cooling priority of the base refrigerator in the cooling state according to the base parameter comprises:
using the formula Δ T 2 ＝T-T OFF Calculating the refrigeration priority;
wherein T is the actual temperature of the basic refrigerator in a refrigerating state, T OFF For the base refrigerator in the refrigerating state, the stop temperature, delta T 2 The method is used for representing the refrigeration priority of the basic refrigerator in the refrigeration state.
7. A combined refrigerator control method is applied to a combined refrigerator comprising at least two basic refrigerators, wherein each basic refrigerator comprises a compressor and a fan, and the method comprises the following steps:
determining the refrigerating quantity according to the working state of each basic refrigerator at preset time intervals, wherein the refrigerating quantity is the quantity of the basic refrigerators in the refrigerating state;
if the refrigerating quantity is larger than 1, acquiring basic parameters of a basic refrigerator in a refrigerating state, wherein the basic parameters comprise the actual temperature at the current moment, the starting point temperature and the stopping point temperature;
determining the refrigeration parameters and the refrigeration priority of the basic refrigerator in a refrigeration state according to the basic parameters;
if the refrigerating quantity is 3, dividing the basic refrigerator in the refrigerating state into a first basic refrigerator, a second basic refrigerator and a third basic refrigerator according to the refrigerating priority, wherein the refrigerating priority of the first basic refrigerator is greater than that of the second basic refrigerator, and the refrigerating priority of the second basic refrigerator is greater than that of the third basic refrigerator;
if the refrigeration parameter of the first basic refrigerator is greater than or equal to 0, generating a first control instruction, wherein the first control instruction is used for indicating the compressor rotating speed and the fan rotating speed of the first basic refrigerator to operate according to a target rotating speed;
if the refrigeration parameter of the first basic refrigerator is less than 0, generating a second control instruction, wherein the second control instruction is used for adjusting the rotating speed of a compressor of the first basic refrigerator to be reduced to 4 gears lower than a target rotating speed, and when the rotating speed of the compressor is less than or equal to a first low gear, the speed reduction processing is not carried out, and adjusting the rotating speed of a fan of the first basic refrigerator to be reduced to 2 gears lower than the target rotating speed, and when the rotating speed of the fan is less than or equal to a second low gear, the speed reduction processing is not carried out;
if the refrigeration parameter of the second basic refrigerator is greater than or equal to 0, generating a third control instruction, wherein the third control instruction is used for adjusting the rotating speed of a compressor of the second basic refrigerator to be reduced to 2 gears lower than the target rotating speed, and when the rotating speed of the compressor is less than or equal to a first low gear, the speed reduction processing is not carried out, and adjusting the rotating speed of a fan of the second basic refrigerator to be reduced to 1 gear lower than the target rotating speed, and when the rotating speed of the fan is less than or equal to a second low gear, the speed reduction processing is not carried out;
if the refrigeration parameter of the second basic refrigerator is less than 0, generating a fourth control instruction, wherein the fourth control instruction is used for adjusting the rotating speed of a compressor of the second basic refrigerator to be reduced to 4 gears lower than the target rotating speed, and when the rotating speed of the compressor is less than or equal to a first low gear, the fourth control instruction is not subjected to speed reduction processing, and adjusting the rotating speed of a fan of the second basic refrigerator to be reduced to 2 gears lower than the target rotating speed, and when the rotating speed of the fan is less than or equal to a second low gear, the fourth control instruction is not subjected to speed reduction processing;
and generating a fifth control instruction, wherein the fifth control instruction is used for adjusting the rotating speed of a compressor of the third basic refrigerator to be reduced to a position 4 gears lower than the target rotating speed and not performing speed reduction processing when the rotating speed of the compressor is smaller than or equal to a first low gear, and adjusting the rotating speed of a fan of the third basic refrigerator to be reduced to a position 2 gears lower than the target rotating speed and not performing speed reduction processing when the rotating speed of the fan is smaller than or equal to a second low gear.
8. A refrigerator which is a combination refrigerator comprising at least two basic refrigerators comprising a compressor and a fan, characterized in that the refrigerator is configured to perform the combination refrigerator control method of any one of claims 1 to 7.
CN202210925094.8A 2022-08-01 2022-08-01 Combined refrigerator control method and refrigerator thereof Pending CN115164510A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080067530A (en) * 2007-01-16 2008-07-21 엘지전자 주식회사 Method of operating a multi refrigerating system
CN109556342A (en) * 2018-11-23 2019-04-02 长虹美菱股份有限公司 A kind of combined refrigerator and combinations thereof controlling method for refrigerator
CN110579032A (en) * 2019-10-08 2019-12-17 长虹美菱股份有限公司 Air-cooled refrigerator with multi-cycle refrigeration system and refrigeration control method thereof
CN112577259A (en) * 2020-12-09 2021-03-30 合肥美菱物联科技有限公司 Combined refrigerator and interaction method thereof
CN113819708A (en) * 2020-06-18 2021-12-21 青岛海尔电冰箱有限公司 Control method and device for multiple online refrigerators
CN114777381A (en) * 2022-04-21 2022-07-22 海信（山东）冰箱有限公司 Combined refrigerator and control method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080067530A (en) * 2007-01-16 2008-07-21 엘지전자 주식회사 Method of operating a multi refrigerating system
CN109556342A (en) * 2018-11-23 2019-04-02 长虹美菱股份有限公司 A kind of combined refrigerator and combinations thereof controlling method for refrigerator
CN110579032A (en) * 2019-10-08 2019-12-17 长虹美菱股份有限公司 Air-cooled refrigerator with multi-cycle refrigeration system and refrigeration control method thereof
CN113819708A (en) * 2020-06-18 2021-12-21 青岛海尔电冰箱有限公司 Control method and device for multiple online refrigerators
CN112577259A (en) * 2020-12-09 2021-03-30 合肥美菱物联科技有限公司 Combined refrigerator and interaction method thereof
CN114777381A (en) * 2022-04-21 2022-07-22 海信（山东）冰箱有限公司 Combined refrigerator and control method thereof

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