CN109974392A - The control method and control device of refrigerator - Google Patents

The control method and control device of refrigerator Download PDF

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Publication number
CN109974392A
CN109974392A CN201910291231.5A CN201910291231A CN109974392A CN 109974392 A CN109974392 A CN 109974392A CN 201910291231 A CN201910291231 A CN 201910291231A CN 109974392 A CN109974392 A CN 109974392A
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CN
China
Prior art keywords
temperature
refrigerator
rule
temperature difference
refrigerant
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Granted
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CN201910291231.5A
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Chinese (zh)
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CN109974392B (en
Inventor
刘海亮
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Qingdao Haier Co Ltd
Qingdao Haier Refrigerator Co Ltd
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Qingdao Haier Co Ltd
Qingdao Haier Refrigerator Co Ltd
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Priority to CN201910291231.5A priority Critical patent/CN109974392B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022Compressor control arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices

Abstract

The present invention provides a kind of control method of refrigerator and control device, the refrigeration system of the refrigerator includes at least sequentially connected compressor, condenser, device for drying and filtering, capillary and evaporator;The control method includes: to obtain the environment temperature of the refrigerator region;Obtain the temperature of the refrigerant of the entrance side of the device for drying and filtering;Calculate the temperature of the refrigerant and the temperature difference of the environment temperature;The revolving speed of the compressor is adjusted based on the environment temperature, the temperature difference.The control method of refrigerator of the invention can adjust the pressure of cooling cycle system of refrigerator, avoid the occurrence of the refrigerator caused by the heat source due to refrigerator and do not freeze and freeze the problem of difference, realize the normal refrigeration cycle of refrigerator.

Description

The control method and control device of refrigerator
Technical field
The present invention relates to refrigerating engineering device technique fields, and the control method and control more particularly to a kind of refrigerator fill It sets.
Background technique
Currently, the refrigerator of commercial type is mainly to control turning for compressor by environment temperature locating for detection refrigerator Speed.When refrigerator side plate is close to heat source, the temperature for flowing through the refrigerant of side plate can be increased, but the environment temperature as locating for refrigerator Change it is unobvious, compressor still with lower revolving speed operation, the pressure of system is low, causes refrigerant vapour that can not be normally carried out The problem of, there is refrigeration system paralysis in condensation, and refrigerator does not freeze.
Summary of the invention
The control method for adjusting more accurately refrigerator it is an object of the present invention to provide a kind of compressor rotary speed.
A further object of the present invention is to avoid the refrigerator caused by the heat source due to refrigerator from not freezing and freeze The problem of difference.
Particularly, the present invention provides a kind of control method of refrigerator, the refrigeration system of refrigerator, which includes at least, to be sequentially connected Compressor, condenser, device for drying and filtering, capillary and evaporator;Control method includes:
Obtain the environment temperature of refrigerator region;
Obtain the temperature of the refrigerant of the entrance side of device for drying and filtering;
Calculate the temperature of refrigerant and the temperature difference of environment temperature;
The revolving speed of compressor is adjusted based on environment temperature, the temperature difference.
Optionally, based on environment temperature, the temperature difference adjust compressor revolving speed the step of include:
The corresponding rotational speed regulation rule of environment temperature, the temperature difference is determined according to preset mapping relations and according to rotational speed regulation Rule determines compressor rotary speed, wherein
Mapping relations regulation has the corresponding rotational speed regulation rule of environment temperature numberical range, temperature difference value range;Revolving speed tune Section rule includes the first adjusting rule and second adjusts rule, and the first adjusting rule regulation has environment temperature numberical range corresponding Compressor rotary speed, second, which adjusts rule regulation, the corresponding compressor rotary speed of refrigerant temperature numberical range.
Optionally, corresponding rotational speed regulation rule is determined according to mapping relations and determine to press according to rotational speed regulation rule The step of contracting machine revolving speed includes:
Determine environment temperature numberical range belonging to environment temperature;
Determine temperature difference value range belonging to the temperature difference;
Its corresponding rotational speed regulation rule is determined according to the environment temperature numberical range determined, temperature difference value range query Then;
When corresponding to the first adjusting rule, compressor rotary speed is determined according to the environment temperature numberical range determined;
When corresponding to the second adjusting rule:
Determine refrigerant temperature numberical range belonging to the temperature of refrigerant, and
Compressor rotary speed is determined according to the refrigerant temperature numberical range determined.
Optionally, temperature difference value range is arranged to the first temperature difference section no more than fiducial temperature threshold value and is greater than pre- If the second temperature difference section of temperature difference threshold;
Its corresponding rotational speed regulation rule is determined according to the environment temperature numberical range determined, temperature difference value range query Then the step of includes:
Judge that the temperature difference belongs to the first temperature range or second temperature section;
When the temperature difference belongs to the first temperature difference section, determine the first adjusting rule as rotational speed regulation rule;
When the temperature difference belongs to the second temperature difference section, determine the second adjusting rule as rotational speed regulation rule.
Optionally, temperature difference value range is arranged to: the temperature of the corresponding temperature difference value range of varying environment temperature value range Spending section has different fiducial temperature threshold values.
Optionally, in mapping relations, environment temperature numberical range is according to temperature height successive segmentation at multiple environment temperatures Section;And
With the raising in environment temperature section, the fiducial temperature threshold value of the temperature range of temperature difference value range increases.
Optionally, first rule setting is adjusted at multiple environment temperature sections identical with mapping relations.
Optionally, refrigerant temperature numberical range is according to temperature height successive segmentation at multiple refrigerant temperature sections;
Second adjust rule setting at: with the raising in refrigerant temperature section, the tachometer value of compressor increases.
Optionally, condenser includes the bottom condenser for being set to the bottom of box of refrigerator and the squab panel for being set to cabinet Back condenser;The outlet of compressor connects bottom condenser, bottom condenser, dew removing tube, back condenser, device for drying and filtering, hair Tubule, evaporator, muffler are sequentially connected, and the outlet of muffler is connected with the entrance of compressor;
The temperature for obtaining the refrigerant of the entrance side of device for drying and filtering includes: that acquisition is arranged in back condenser and dried The numerical value that the second temperature sensor on pipeline between filter measures, obtains the temperature of refrigerant.
The present invention also provides a kind of control devices of refrigerator, comprising: controller and memory are stored with calculating in memory Machine program, and when computer program is run, so that controller executes control method above-mentioned.
The control method of refrigerator of the invention passes through the environment temperature and device for drying and filtering for obtaining refrigerator region The temperature of the refrigerant of entrance side, and the temperature of refrigerant and the temperature difference of environment temperature are calculated, it is based on environment temperature, the temperature difference later The revolving speed of compressor is adjusted, and then adjusts the pressure of cooling cycle system of refrigerator, avoids the occurrence of and is caused due to refrigerator close to heat source Refrigerator do not freeze and freeze difference problem, realize the normal refrigeration cycle of refrigerator.
Further, the control method of refrigerator of the invention determines environment temperature numberical range belonging to environment temperature first With temperature difference value range belonging to the determining temperature difference, looked into later according to environment temperature numberical range, the temperature difference value range determined Its corresponding rotational speed regulation rule is determined in inquiry, and wherein rotational speed regulation rule includes that the first adjusting rule and second adjust rule, So that refrigerator adjusts pressure according to different rotational speed regulation rules in varying environment temperature value range, different temperature difference value ranges The revolving speed of contracting machine, so that the control of the compressor of refrigerator is more accurate.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter. Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the schematic side view of refrigerator according to an embodiment of the invention.
Fig. 2 is the schematic diagram of the refrigeration system of refrigerator according to an embodiment of the invention.
Fig. 3 is the flow diagram of the control method of refrigerator according to an embodiment of the invention.
Fig. 4 is the schematic block diagram of the control device of refrigerator according to an embodiment of the invention.
Fig. 5 is the flow diagram of the control method of refrigerator according to an embodiment of the invention.
Specific embodiment
Fig. 1 is the schematic side view of refrigerator 100 according to an embodiment of the invention.The refrigerator 100 of the embodiment of the present invention It generally include: cabinet 110 and refrigeration system.Storage room is defined inside the cabinet 110 of refrigerator 100.Storage room Quantity and structure can be configured according to demand.For example, Fig. 1 show the first storage room set gradually up and down, The case where second storage room and third storage room, is set to case wherein the first storage room is rotating opening formula door body 120 The front surface of body 110, for closing the storage room;Second storage room and third storage room are the first pull storages of setting Object device 130 and the second pull article-storage device 140, are pullably set in storage room.Storage room is according to purposes difference It is configurable to refrigerator room, freezing compartment, alternating temperature compartment or fresh-keeping compartment.Each storage room can be divided by demarcation plate For multiple storage areas.The refrigerator 100 of the embodiment of the present invention can be typical French refrigerator, between three set gradually up and down Room is respectively refrigerator room, freezing compartment, freezing compartment.It can on each door body panel of the refrigerator 100 of the embodiment of the present invention To be provided with handle, in order to which user opens and closes the storage room of refrigerator 100.
Fig. 2 is the schematic diagram of the refrigeration system of refrigerator 100 according to an embodiment of the invention.The ice of the embodiment of the present invention The refrigeration system of case 100 includes compressor 201, condenser, dew removing tube 203, device for drying and filtering 205, capillary 206, evaporator 207, muffler 208.Condenser includes bottom condenser 202 and back condenser 204.Bottom condenser 202 is set to positioned at cabinet In the press cabin of 110 bottoms, it is generally arranged at the upper surface or lower surface of bottom plate.Bottom condenser 202 be coiler type condenser or Coiled tube condenser is installed on the adjacent side of compressor 201, and partition can be equipped between compressor 201, makes itself and compressor 201 two different rooms in press cabin;Or partition is not installed, make it with compressor 201 in press cabin.Back Condenser 204 is set at the squab panel of cabinet 110, using squared design, is attached at the edge at squab panel.Compressor 201, Bottom condenser 202, dew removing tube 203, back condenser 204, device for drying and filtering 205, capillary 206, evaporator 207, muffler 208, compressor 201, which is linked in sequence, forms the refrigeration cycle close access of the refrigerator 100 of the embodiment of the present invention.Compressor 201 is pressed The refrigerant of contracting enters bottom condenser 202 and air heat-exchange, and refrigerant after cooling enters dew removing tube 203 except dew, except dew is laggard Enter back condenser 204 and air heat-exchange, enter device for drying and filtering 205 later, through capillary 206 and refrigerating evaporator 207 Import connection, is connected with muffler 208 between the outlet and compressor 201 of refrigerating evaporator 207.In addition, in cabinet 110 Multiple air grids are additionally provided on bottom plate, press is additionally provided with radiator fan in cabin, to play forced ventilation to bottom condenser 202 The effect of heat dissipation.
In the prior art, when refrigerator 100 is placed close to heat source, the temperature meeting of the refrigerant of back condenser 204 is flowed through It increases, but the variation of ambient temperature as locating for refrigerator 100 is unobvious, compressor 201 is still with the operation of lower revolving speed, system Pressure it is low, cause refrigerant vapour that can not be normally carried out condensation, the problem of refrigeration system paralysis, refrigerator 100 does not freeze occur. In order to realize that the normal refrigeration cycle of refrigerator 100, the embodiment of the present invention propose a kind of control method of refrigerator 100.Fig. 3 is root According to the flow diagram of the control method of the refrigerator 100 of one embodiment of the invention.The control of the refrigerator 100 of the embodiment of the present invention Method, comprising steps of
S302: the environment temperature of 100 region of refrigerator is obtained;
S304: the temperature of the refrigerant of the entrance side of device for drying and filtering 205 is obtained;
S306: the temperature of refrigerant and the temperature difference of environment temperature are calculated;
S308: the revolving speed of compressor is adjusted based on environment temperature, the temperature difference.
The control method of the refrigerator 100 of the embodiment of the present invention by obtain 100 region of refrigerator environment temperature and The temperature of the refrigerant of the entrance side of device for drying and filtering 205, and calculate the temperature of refrigerant and the temperature difference of environment temperature, Zhi Houji The revolving speed of compressor 201 is adjusted in environment temperature, the temperature difference, and then adjusts the pressure of 100 cooling cycle system of refrigerator, is avoided the occurrence of Since the refrigerator 100 caused by the heat source of refrigerator 100 does not freeze and freeze the problem of difference, realizing refrigerator 100, normally refrigeration is followed Ring.
Fig. 4 is the schematic block diagram of the control device 400 of refrigerator 100 according to an embodiment of the invention.The present invention is implemented The control device 400 of the refrigerator 100 of example includes: controller 401 and memory 402, is stored with computer program in memory 402 420, and when computer program 420 is run, so that controller 401 executes control method above-mentioned.
In some embodiments, the control method of the refrigerator 100 of the embodiment of the present invention based on environment temperature, the temperature difference adjust The step of revolving speed of compressor 201 includes:
The corresponding rotational speed regulation rule of environment temperature, the temperature difference is determined according to preset mapping relations and according to rotational speed regulation Rule determines compressor rotary speed, wherein
Mapping relations regulation has the corresponding rotational speed regulation rule of environment temperature numberical range, temperature difference value range;Revolving speed tune Section rule includes the first adjusting rule and second adjusts rule, and the first adjusting rule regulation has environment temperature numberical range corresponding Compressor rotary speed, second, which adjusts rule regulation, the corresponding compressor rotary speed of refrigerant temperature numberical range.
In some embodiments, acquisition refrigerator 100 region of the control method of the refrigerator 100 of the embodiment of the present invention Environment temperature includes: to obtain to be arranged in the number that multiple first temperature sensors 150 of different parts on 100 shell of refrigerator measure Value, logarithm carry out fusion calculation, obtain environment temperature.Further, it is also possible to be passed in multiple first temperature for obtaining different parts After the numerical value that sensor 150 measures, wherein the first excessive temperature sensor 150 of numerical bias is identified, and reminded, with as far as possible Eliminate error.
In some embodiments, the acquisition device for drying and filtering 205 of the control method of the refrigerator 100 of the embodiment of the present invention enters The temperature of the refrigerant of mouthful side includes: for obtaining and being arranged on the pipeline between back condenser 204 and device for drying and filtering 205 The numerical value that two temperature sensors 250 measure, obtains the temperature of refrigerant.
In some embodiments, the control method of the refrigerator 100 of the embodiment of the present invention is determined pair according to mapping relations The rotational speed regulation answered is regular and includes: the step of determining compressor rotary speed according to rotational speed regulation rule
Determine environment temperature numberical range belonging to environment temperature;
Determine temperature difference value range belonging to the temperature difference;
Its corresponding rotational speed regulation rule is determined according to the environment temperature numberical range determined, temperature difference value range query Then;
When corresponding to the first adjusting rule, compressor rotary speed is determined according to the environment temperature numberical range determined;
When corresponding to the second adjusting rule:
Determine refrigerant temperature numberical range belonging to the temperature of refrigerant, and
Compressor rotary speed is determined according to the refrigerant temperature numberical range determined.
In some embodiments, the temperature difference value range of the control method of the refrigerator 100 of the embodiment of the present invention is arranged to have There is the second temperature difference section no more than the first temperature difference section of fiducial temperature threshold value and greater than fiducial temperature threshold value;
Its corresponding rotational speed regulation rule is determined according to the environment temperature numberical range determined, temperature difference value range query Then the step of includes:
Judge that the temperature difference belongs to the first temperature range or second temperature section;
When the temperature difference belongs to the first temperature difference section, determine the first adjusting rule as rotational speed regulation rule;
When the temperature difference belongs to the second temperature difference section, determine the second adjusting rule as rotational speed regulation rule.
In some preferred embodiments, the temperature difference value range setting of the control method of the refrigerator 100 of the embodiment of the present invention At: the temperature range of the corresponding temperature difference value range of varying environment temperature value range has different fiducial temperature threshold values.? In some more preferred embodiments, in mapping relations, environment temperature numberical range is according to temperature height successive segmentation at multiple environment Temperature range;And with the raising in environment temperature section, the fiducial temperature threshold value of the temperature range of temperature difference value range increases.
In some embodiments, the first of the control method of the refrigerator 100 of the embodiment of the present invention adjusts rule setting into tool There are multiple environment temperature sections identical with mapping relations.
In some embodiments, the refrigerant temperature numberical range of the control method of the refrigerator 100 of the embodiment of the present invention is pressed According to temperature height successive segmentation at multiple refrigerant temperature sections;Second adjust rule setting at: with refrigerant temperature section Raising, the tachometer value of compressor 201 increases.
Fig. 5 is the flow diagram of the control method of refrigerator 100 according to an embodiment of the invention.The embodiment of the present invention Refrigerator 100 control method, comprising steps of
S502: the environment temperature of 100 region of refrigerator is obtained;
S504: the temperature of the refrigerant of the entrance side of device for drying and filtering 205 is obtained;
S506: the temperature of refrigerant and the temperature difference of environment temperature are calculated;
S508: environment temperature numberical range belonging to environment temperature is determined;
S510: its corresponding temperature difference section is determined according to the environment temperature numberical range inquiry determined;
S512: judge that the temperature difference being calculated belongs to the first temperature range or second temperature section;
When the judging result of step S512 is that the temperature difference belongs to the first temperature range, step is executed:
S514: determine the first adjusting rule as rotational speed regulation rule;
S516: adjusting rule according to first, determines compressor according to the environment temperature numberical range that step S508 is determined 201 tachometer value;
S522: the compressor 201 of control refrigerator 100 is run according to the tachometer value determined.
When the judging result of step S512 is that the temperature difference belongs to second temperature section, step is executed:
S518: determine the second adjusting rule as rotational speed regulation rule;
S520: the tachometer value that rule determines compressor 201 is adjusted according to second;Specifically, first determine that step S504 is obtained Refrigerant temperature numberical range belonging to the temperature of the refrigerant obtained, it is true according to the refrigerant temperature numberical range determined later Make the tachometer value of compressor 201;
S522: the compressor 201 of control refrigerator 100 is run according to the tachometer value determined.
The rate-determining steps of the control method of the refrigerator 100 of the embodiment of the present invention are simple, and the component needed is few, only need to be existing Increase second temperature sensor 250 in some refrigerators 100, investment is small, and improvement is obvious.
Mapping relations, the first adjusting rule and second illustratively to the refrigerator of the embodiment of the present invention 100 are adjusted below Section rule is described in detail.
1 environment temperature of the table-temperature difference-rotational speed regulation rule mapping relations
In table 1, T indicates the environment temperature in region locating for refrigerator 100, and Δ T indicates the temperature and environment temperature of refrigerant Difference.Table 1 is environment temperature-temperature difference-rotational speed regulation rule mapping relations schematic table.Environment temperature numberical range is according to temperature Spend height successive segmentation at multiple environment temperature sections (T1, T2 ... Tx ... Tn).Different environment temperature sections are corresponding with not Same temperature difference section, and each temperature difference section is divided into the first temperature difference section and the second temperature difference section according to fiducial temperature threshold value.Example Such as, the temperature difference section of T1 includes the first temperature difference section and Δ T > the first fiducial temperature threshold of the fiducial temperature threshold value of Δ T≤first Second temperature difference section of value.For another example the temperature difference section of Tx include the first temperature difference section of Δ T≤xth fiducial temperature threshold value and Second temperature difference section of Δ T > xth fiducial temperature threshold value.With the raising in environment temperature section, temperature difference value range is preset Temperature difference threshold increases, xth fiducial temperature threshold value > the second fiducial temperature threshold value > the first fiducial temperature threshold value.
Table 2 first adjusts rule
Environment temperature Compressor rotary speed
T1 NT1
T2 NT2
Tx NTx
Tn NTn
Table 2 is the schematic table of the first adjusting rule;In table, N indicates the tachometer value of compressor 201.First adjusts rule Be arranged to: different environment temperature sections are corresponding with different compressor rotary speeds.Here, first regular environment temperature area is adjusted Between it is generally consistent with the environment temperature section in table 1, such as shown above, also include T1, T2 ... Tx ... Tn.But Ying Li Solution, in some embodiments, first, which adjusts rule, can have the environment temperature section different from table 1.
Table 3 second adjusts rule
Refrigerant temperature Compressor rotary speed
t1 Nt1
t2 Nt2
tx Ntx
tn Ntn
Table 3 is the schematic table of the second adjusting rule;In table, N indicates the tachometer value of compressor 201.Refrigerant temperature number Be worth range according to temperature height successive segmentation at multiple refrigerant temperature sections (t1, t2 ... tx ... tn).Second adjusts rule Be arranged to: with the raising in refrigerant temperature section, the tachometer value of compressor 201 increases.
From table 2 and table 3 it is found that the technical scheme is that in identical environment temperature section, when the temperature difference is no more than pre- If when temperature difference threshold, compressor rotary speed is controlled referring to environment temperature, and when the temperature difference is greater than fiducial temperature threshold value, then referring to system The temperature of cryogen controls compressor rotary speed.
For example, setting environment temperature section T1≤20 DEG C, the first fiducial temperature threshold value are 5 DEG C in table 1;Environment temperature area Between 20 DEG C of T2≤32 DEG C <, the second fiducial temperature threshold value be 8 DEG C;32 DEG C of environment temperature section T3≤40 DEG C <, the default temperature of third Poor threshold value is 10 DEG C;40 DEG C of environment temperature section T4 >, the 4th fiducial temperature threshold value are 12 DEG C.Table 2 first is adjusted in rule, ring When temperature range T1≤20 DEG C of border, NT1 is 1600 revs/min;When 20 DEG C of T2≤32 DEG C < in environment temperature section, NT2 1600 Rev/min;When 32 DEG C of T3≤40 DEG C < in environment temperature section, NT3 is 3000 revs/min;At 40 DEG C of environment temperature section T4 >, NT4 is 3400 revs/min.Table 3 second is adjusted in rule, and when t1≤25 DEG C of refrigerant temperature section, Nt1 is 2700 revs/min; When 25 DEG C of t2≤40 DEG C < in refrigerant temperature section, Nt2 is 3400 revs/min;40 DEG C of refrigerant temperature section t3≤50 DEG C < When, Nt3 is 3800 revs/min;At 50 DEG C of refrigerant temperature section t4 >, Nt4 is 4300 revs/min.
Following exemplary shows the specific rate-determining steps of the control method of the refrigerator 100 of the embodiment of the present invention:
The environment temperature of 100 region of refrigerator is obtained, is 15 DEG C;
The temperature of the refrigerant of the entrance side of device for drying and filtering 205 is obtained, is 21 DEG C;
The temperature of refrigerant and the temperature difference of environment temperature are calculated, Δ T is 6 DEG C;
It determines environment temperature numberical range belonging to environment temperature, is environment temperature section T1;
Its corresponding temperature difference section is determined according to the environment temperature numberical range inquiry determined, is fiducial temperature threshold value For 5 DEG C of temperature difference section;
6 DEG C 5 DEG C of >, judge that the temperature difference belongs to second temperature section;
Determine the second adjusting rule as rotational speed regulation rule;
21 DEG C≤25 DEG C, belong to refrigerant temperature section t1, the tachometer value Nt1 of corresponding compressor 201 is 2700 revs/min Clock;
The compressor 201 for controlling refrigerator 100 is run according to 2700 revs/min of the tachometer value determined.
The specific rate-determining steps of the control method of the refrigerator 100 of the embodiment of the present invention are illustrated again below:
The environment temperature of 100 region of refrigerator is obtained, is 42 DEG C;
The temperature of the refrigerant of the entrance side of device for drying and filtering 205 is obtained, is 53 DEG C;
The temperature of refrigerant and the temperature difference of environment temperature are calculated, Δ T is 11 DEG C;
It determines environment temperature numberical range belonging to environment temperature, is environment temperature section T4;
Its corresponding temperature difference section is determined according to the environment temperature numberical range inquiry determined, is fiducial temperature threshold value For 12 DEG C of temperature difference section;
11 DEG C 12 DEG C of <, judge that the temperature difference belongs to the first temperature range;
Determine the first adjusting rule as rotational speed regulation rule;
45 DEG C 40 DEG C of >, belong to environment temperature section T4, the tachometer value NT4 of corresponding compressor 201, is 3400 revs/min Clock;
The compressor 201 for controlling refrigerator 100 is run according to 3400 revs/min of the tachometer value determined.
The control method of the refrigerator 100 of the embodiment of the present invention by obtain 100 region of refrigerator environment temperature and The temperature of the refrigerant of the entrance side of device for drying and filtering 205, and calculate the temperature of refrigerant and the temperature difference of environment temperature, Zhi Houji The revolving speed of the compressor 201 of refrigerator 100 is adjusted in environment temperature, the temperature difference, and then adjusts the pressure of 100 cooling cycle system of refrigerator Power avoids the occurrence of the refrigerator 100 caused by the heat source due to refrigerator 100 and does not freeze and freeze the problem of difference, realizing refrigerator 100 just Normal refrigeration cycle.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes It is set to and covers all such other variations or modifications.

Claims (10)

1. a kind of control method of refrigerator, the refrigeration system of the refrigerator includes at least sequentially connected compressor, condenser, does Dry filter, capillary and evaporator;The control method includes:
Obtain the environment temperature of the refrigerator region;
Obtain the temperature of the refrigerant of the entrance side of the device for drying and filtering;
Calculate the temperature of the refrigerant and the temperature difference of the environment temperature;
The revolving speed of the compressor is adjusted based on the environment temperature, the temperature difference.
2. the control method of refrigerator according to claim 1, wherein
The step of adjusting the revolving speed of the compressor based on the environment temperature, the temperature difference include:
The corresponding rotational speed regulation rule of the environment temperature, the temperature difference is determined according to preset mapping relations and according to described Rotational speed regulation rule determines compressor rotary speed, wherein
The mapping relations regulation has the corresponding rotational speed regulation rule of environment temperature numberical range, temperature difference value range;Institute Stating rotational speed regulation rule includes that the first adjusting rule and second adjust rule, and the first adjusting rule regulation has environment temperature number It is worth the corresponding compressor rotary speed of range, described second, which adjusts rule regulation, has the corresponding compressor of refrigerant temperature numberical range to turn Speed.
3. the control method of refrigerator according to claim 2, wherein
Corresponding rotational speed regulation rule is determined according to the mapping relations and determines to compress according to the rotational speed regulation rule The step of machine revolving speed includes:
Determine environment temperature numberical range belonging to the environment temperature;
Determine temperature difference value range belonging to the temperature difference;
Determine that its corresponding described turns according to the environment temperature numberical range determined, the temperature difference value range query Velocity modulation section rule;
When corresponding to the first adjusting rule, compressor rotary speed is determined according to the environment temperature numberical range determined;
When corresponding to the second adjusting rule:
Determine refrigerant temperature numberical range belonging to the temperature of the refrigerant, and
Compressor rotary speed is determined according to the refrigerant temperature numberical range determined.
4. the control method of refrigerator according to claim 3, wherein
The temperature difference value range is arranged to the first temperature difference section no more than fiducial temperature threshold value and is greater than described default Second temperature difference section of temperature difference threshold;
Determine that its corresponding described turns according to the environment temperature numberical range determined, the temperature difference value range query The step of velocity modulation section rule includes:
Judge that the temperature difference belongs to the first temperature range or second temperature section;
When the temperature difference belongs to first temperature difference section, determine that described first adjusts rule as rotational speed regulation rule Then;
When the temperature difference belongs to second temperature difference section, determine that described second adjusts rule as rotational speed regulation rule Then.
5. the control method of refrigerator according to claim 4, wherein
The temperature difference value range is arranged to: the institute of the corresponding temperature difference value range of the difference environment temperature numberical range Temperature range is stated with the different fiducial temperature threshold values.
6. the control method of refrigerator according to claim 5, wherein
In the mapping relations, the environment temperature numberical range is according to temperature height successive segmentation at multiple environment temperature areas Between;And
With the raising in the environment temperature section, the fiducial temperature threshold of the temperature range of the temperature difference value range Value increases.
7. the control method of refrigerator according to claim 6, wherein
Described first adjusts rule setting at the multiple environment temperature section identical with the mapping relations.
8. the control method of refrigerator according to claim 3, wherein
The refrigerant temperature numberical range is according to temperature height successive segmentation at multiple refrigerant temperature sections;
Described second adjust rule setting at: with the raising in the refrigerant temperature section, the tachometer value of the compressor increases Greatly.
9. the control method of refrigerator according to claim 1, wherein
The condenser includes the bottom condenser for being set to the bottom of box of the refrigerator and the squab panel for being set to the cabinet Back condenser;The outlet of the compressor connects the bottom condenser, the bottom condenser, dew removing tube, back condenser, Device for drying and filtering, capillary, evaporator, muffler are sequentially connected, the outlet and the entrance phase of the compressor of the muffler Even;
The temperature for obtaining the refrigerant of the entrance side of the device for drying and filtering includes: that acquisition is arranged in the back condenser and institute The numerical value that the second temperature sensor on the pipeline between device for drying and filtering measures is stated, the temperature of the refrigerant is obtained.
10. a kind of control device of refrigerator, comprising:
Controller and memory are stored with computer program in the memory, and when the computer program is run, make The controller executes any control method in -9 according to claim 1.
CN201910291231.5A 2019-04-11 2019-04-11 Control method and control device of refrigerator Active CN109974392B (en)

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