CN107101451A - Refrigerator and its refrigeration control method and device - Google Patents
Refrigerator and its refrigeration control method and device Download PDFInfo
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- CN107101451A CN107101451A CN201710283922.1A CN201710283922A CN107101451A CN 107101451 A CN107101451 A CN 107101451A CN 201710283922 A CN201710283922 A CN 201710283922A CN 107101451 A CN107101451 A CN 107101451A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/02—Timing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/122—Sensors measuring the inside temperature of freezer compartments
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The present invention relates to a kind of refrigerator and its refrigeration control method and device, this method includes:Obtain environment temperature;Scheduled rate corresponding with the environment temperature is determined according to the environment temperature;It is spaced the compartment temperature that preset time obtains at least two refrigeration spaces;Compartment temperature obtains rate of temperature fall according at least two;Judge whether the rate of temperature fall matches with the scheduled rate, if it is not, then adjusting the rotating speed of compressor.Temperature acquisition is carried out to refrigeration space according to timing, and the rate of temperature fall in refrigeration space is calculated successively, and then adjust the rotating speed of compressor so that the operating power of refrigeration system can be matched with the thermic load of current compartment, refrigerating efficiency is effectively improved, and reduces energy consumption.
Description
Technical field
The present invention relates to refrigeration technology field, more particularly to refrigerator and its refrigeration control method and device.
Background technology
Now with scientific and technological constantly progress, the ratio that the household electrical appliances such as frequency conversion refrigerator and convertible frequency air-conditioner commercially occupy is more next
Higher, frequency conversion refrigerator can control the height of temperature according to the height and compartment of environment temperature, adjust the size of compressor rotary speed
To control the displacement of compressor so as to further control the cold that whole refrigeration system is provided, to meet the different cold of refrigerator
Measure the demand of section.In general, refrigerator is when environment temperature is higher relatively low with compartment temperature, and the thermic load of casing is higher, required
The cold wanted is also larger.
In order to preferably meet the refrigeration demand of refrigerator, by the rotating speed root of frequency-changeable compressor typically in programming procedure
According to environment temperature, gear is divided into several gears from low to high, the demand of refrigerator complete machine is met to provide different colds,
But this design can not take into account the casing thermic load change produced in actual use, gear is difficult to and current casing thermic load
Match somebody with somebody, cause the rotating speed of frequency-changeable compressor too high or too low, cause refrigerating efficiency low, high energy consumption.
The content of the invention
Based on this, it is necessary to in conventional refrigeration, the gear of compressor can not take into account the change of casing thermic load, difficult
To be matched with current casing thermic load, cause the rotating speed of frequency-changeable compressor too high or too low, cause refrigerating efficiency low, high energy consumption
Defect there is provided a kind of refrigerator and its refrigeration control method and device.
A kind of refrigeration control method, including:
Obtain environment temperature;
Scheduled rate corresponding with the environment temperature is determined according to the environment temperature;
It is spaced the compartment temperature that preset time obtains at least two refrigeration spaces;
Compartment temperature obtains rate of temperature fall according at least two;
Judge whether the rate of temperature fall matches with the scheduled rate, if it is not, then adjusting the rotating speed of compressor.
In one of the embodiments, it is described to judge whether the rate of temperature fall matches with the scheduled rate, if it is not, then
The step of rotating speed for adjusting compressor, includes:
Judge whether the difference of the rate of temperature fall and the scheduled rate is less than predetermined threshold value, if it is not, then adjusting described
The rotating speed of compressor.
In one of the embodiments, the step of rotating speed of the adjustment compressor includes:
When the rate of temperature fall is more than the scheduled rate, the rotating speed of the compressor is reduced, when the rate of temperature fall
During less than the scheduled rate, the rotating speed of the compressor is improved.
In one of the embodiments, the step of rotating speed of the adjustment compressor includes:
The adjustment rotating speed for obtaining the compressor is calculated according to the scheduled rate and the rate of temperature fall, is adjusted according to described
Compressor operating described in whole adjustment of rotational speed.
In one of the embodiments, also include after the step of obtaining environment temperature:
The preset rotation speed of the compressor is obtained according to the environment temperature;
The compressor operating is controlled according to the preset rotation speed.
In one of the embodiments, the environment temperature is higher, and the preset rotation speed is bigger.
In one of the embodiments, the environment temperature is higher, and the scheduled rate is smaller.
In one of the embodiments, it is described to judge whether the rate of temperature fall matches with the scheduled rate, if it is not, then
The step of rotating speed for adjusting compressor, includes:
Judge whether the rate of temperature fall matches with the scheduled rate, if it is not, then adjusting the rotating speed of compressor, and adjust
The rotating speed of refrigeration fan.
In one of the embodiments, the step of rotating speed of the adjustment refrigeration fan includes:
When the rate of temperature fall is more than the scheduled rate, the rotating speed of the refrigeration fan is reduced, when the cooling speed
When rate is less than the scheduled rate, the rotating speed of the refrigeration fan is improved.
In one of the embodiments, the interval preset time obtains the step of the compartment temperature of at least two refrigeration spaces
Suddenly include:
The compartment temperature is obtained once before the environment temperature is obtained, the environment temperature is being obtained and is presetting
The compartment temperature is obtained once after time.
A kind of refrigeration control device, including:
First temperature acquisition module, for obtaining environment temperature;
Scheduled rate determining module, for determining default speed corresponding with the environment temperature according to the environment temperature
Rate;
Second temperature acquisition module, the compartment temperature of at least two refrigeration spaces is obtained for being spaced preset time;
Rate of temperature fall acquisition module, rate of temperature fall is obtained for the compartment temperature according at least two;
Judge module, for judging whether the rate of temperature fall matches with the scheduled rate, if it is not, then adjusting compressor
Rotating speed.
In one of the embodiments, the judge module is additionally operable to judge the rate of temperature fall and the scheduled rate
Whether difference is less than predetermined threshold value, if it is not, then adjusting the rotating speed of the compressor.
In one of the embodiments, the judge module includes the first adjustment submodule, the first adjustment submodule
For when the rate of temperature fall is more than the scheduled rate, the rotating speed of the compressor being reduced, when the rate of temperature fall is less than
During the scheduled rate, the rotating speed of the compressor is improved.
In one of the embodiments, the judge module is additionally operable to judge that the rate of temperature fall is with the scheduled rate
No matching, if it is not, then adjusting the rotating speed of compressor, and adjusts the rotating speed of refrigeration fan.
In one of the embodiments, the judge module also includes the second adjustment submodule, the second adjustment submodule
Block is used to, when the rate of temperature fall is more than the scheduled rate, the rotating speed of the refrigeration fan is reduced, when the rate of temperature fall
During less than the scheduled rate, the rotating speed of the refrigeration fan is improved.
A kind of refrigerator, including refrigeration control device described in any of the above-described embodiment.
Above-mentioned refrigerator and its refrigeration control method and device, temperature acquisition is carried out according to timing to refrigeration space, and successively
Calculate the rate of temperature fall in refrigeration space, and then adjust the rotating speed of compressor so that the operating power of refrigeration system can be with
The thermic load matching of current compartment, effectively improves refrigerating efficiency, and reduce energy consumption.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the refrigeration control method of an embodiment;
Fig. 2 is the schematic flow sheet of the refrigeration control method of another embodiment;
Fig. 3 is the schematic flow sheet of the refrigeration control method of another embodiment;
Fig. 4 is the module frame chart of the refrigeration control device of an embodiment;
Fig. 5 is the module frame chart of the judge module of an embodiment.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give presently preferred embodiments of the present invention.But, the present invention can be realized in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more thorough
Comprehensively.
For example, a kind of refrigeration control method, including:Obtain environment temperature;Determined and the ring according to the environment temperature
The corresponding scheduled rate of border temperature;It is spaced the compartment temperature that preset time obtains at least two refrigeration spaces;According at least two
The compartment temperature obtains rate of temperature fall;Judge whether the rate of temperature fall matches with the scheduled rate, if it is not, then adjustment pressure
The rotating speed of contracting machine.
In above-described embodiment, temperature acquisition is carried out to refrigeration space according to timing, and calculate successively in refrigeration space
Rate of temperature fall, and then adjust the rotating speed of compressor so that the operating power of compressor can be matched with the thermic load of current compartment,
Refrigerating efficiency is effectively improved, and reduces energy consumption.For example, improving compressor rotary speed when rate of temperature fall is smaller so that refrigeration space
Fast cooling can be obtained in the case where thermic load is larger, refrigerating efficiency is improved, and when rate of temperature fall is larger, reduction compression
Machine rotating speed so that refrigeration space is run with relatively low rotating speed when thermic load is smaller, saved, pass through said process
Refrigerating efficiency is improved, and effectively reduces energy consumption.
It should be understood that the refrigeration control method of the present invention is applicable not only to refrigerator, air-conditioning etc. is applied also for using pressure
Device or equipment that contracting machine is freezed, wherein, refrigeration space is the space freezed by the refrigeration system of refrigerator or air-conditioning, can
To be the refrigerating chamber or refrigerating chamber or air-conditioned room or other can be freezed closed or half of refrigerator
Confined space.In following examples, applied with refrigeration control method in refrigerator, refrigeration control method is further elaborated.
As shown in figure 1, in one embodiment there is provided a kind of refrigeration control method, including:
Step 102, environment temperature is obtained.
In the present embodiment, the environment temperature is the temperature of the outside of refrigeration space.The refrigeration space is isolated from the outside, example
Such as, the environment temperature is the ambient temperature of refrigerator.For example, gathering environment temperature by temperature sensor.
Step 104, scheduled rate corresponding with the environment temperature is determined according to the environment temperature.
Specifically, the scheduled rate be default rate of temperature fall, that is, default temperature change speed, in other words,
The speed of namely default temperature drop.The cooling rate is the default rate of temperature fall of refrigeration space.The scheduled rate root
Determined according to environment temperature, for example, according to multiple scheduled rates and the default corresponding relation of multiple environment temperatures, it is determined that and environment
The corresponding scheduled rate of temperature.I.e. the scheduled rate is related to outside environment temperature.
It should be understood that under identical refrigeration work consumption, when environment temperature is higher, temperature drop speed is relatively low, and
When the temperature of the surroundings is low, temperature drop speed is higher, specifically, because environment temperature is by the refrigeration of refrigeration system
Influence is produced, therefore, in the case where refrigeration work consumption is certain, within a certain period of time, when environment temperature is higher, in refrigeration space
Temperature drop amplitude it is smaller, and when environment temperature is relatively low, the amplitude of the temperature drop in refrigeration space is larger, therefore,
In the present embodiment, scheduled rate is corresponding with environment temperature, and the scheduled rate is according to environment temperature and the cooling condition meter of refrigerator
Draw, the scheduled rate is the preferable temperature drop speed matched with environment temperature, under the scheduled rate, can be had
Compared with low energy consumption and with higher refrigerating efficiency.
Such as, when environment temperature is higher, and temperature drop speed is larger, then needs to expend relatively high power, and temperature
Decrease speed is smaller, then refrigerating efficiency is low, it is impossible to which, so that food obtains fresh-keeping, therefore, scheduled rate is enabled in environment
In the case that temperature is higher, more normal power consumption is kept, and with certain refrigerating efficiency so that food is protected
It is fresh, when environment temperature is relatively low also similarly.
Step 106, interval preset time obtains the compartment temperature of at least two refrigeration spaces.
Specifically, the refrigeration space can be the refrigerating chamber of refrigerator, or refrigerator refrigerating chamber, the refrigeration space is quilt
In the space that refrigeration system is freezed, the present embodiment, the refrigeration space is the compartment of refrigerator, and the compartment is confined space, compartment
Isolate with external environment condition.Therefore, compartment has the temperature different from outside, and the temperature of the compartment is compartment temperature, and outside
Temperature is environment temperature.The compartment temperature obtained in this step is the compartment temperature for obtaining same refrigeration space, by repeatedly obtaining
Take, and then get at least two compartment temperatures.
For example, compartment temperature indoor between temperature sensor collection indoor between by being arranged at, and for example, by being arranged at
Between indoor temperature sensor, the indoor compartment temperature between being gathered at interval of preset time, the preset time is collecting temperature
Time interval.In this step, interval preset time obtains at least two compartment temperatures, i.e., to same chamber, is obtaining one
After compartment temperature, interval preset time obtains another compartment temperature, that is, obtains two compartment temperatures.In other embodiments,
More than two compartment temperature can also be obtained, for example, a compartment temperature is obtained at interval of preset time, so as to obtain at least
Two compartment temperatures, i.e., the time interval for obtaining compartment temperature every time is preset time, in other words, what two acquisition times closed on
The time interval of the acquisition of compartment temperature is preset time.
In one embodiment, step 106 includes:The compartment temperature is obtained once before the environment temperature is obtained,
Obtaining the environment temperature and the compartment temperature is obtained once after preset time.
Two compartment temperatures of i.e. front and rear acquisition can be the acquisition before and after environment temperature acquisition, so that two
Compartment temperature can correspond to environment temperature, and then enable the rate of temperature fall more matched environment temperature obtained.
Step 108, the compartment temperature according at least two, which is calculated, obtains rate of temperature fall.
It should be understood that at least two compartment temperatures are the compartment temperature that successively collection is obtained, for example, according between two
Room temperature, which is calculated, to be obtained in rate of temperature fall, the present embodiment, two room temperatures that two compartment temperatures obtain for interval preset time
Degree, that is, obtain after first compartment temperature, after preset time, obtains second compartment temperature, and then obtain between two
Room temperature, rate of temperature fall is calculated by the two compartment temperatures.
Rate of temperature fall is obtained for example, being calculated according to two compartment temperatures and preset time.Specifically, rate of temperature fall is single
The slippage of temperature in the time of position, therefore, its calculating process are to calculate the difference of two compartment temperatures, obtain temperature difference, then will
Temperature difference divided by preset time, you can obtain in preset time, the slippage of temperature, namely rate of temperature fall.
Step 110, judge whether the rate of temperature fall matches with the scheduled rate, be then to perform step 112, otherwise hold
Row step 114.
In the present embodiment, rate of temperature fall is contrasted with scheduled rate, judges whether both match, is to perform step
112, otherwise, perform step 114.
It should be understood that whether matching for rate of temperature fall and scheduled rate judged, both whether matching is used to show
Whether both correspond to, and can be that whether contrast both numerical value is equal or it is default to judge whether both differences are less than
Threshold value or judge whether rate of temperature fall falls in the range of scheduled rate.I.e. scheduled rate can be a specific number
Value or a number range, when scheduled rate is concrete numerical value, judge rate of temperature fall and scheduled rate whether phase
Deng, or, judge whether the difference of rate of temperature fall and scheduled rate is less than predetermined threshold value, when scheduled rate is number range,
Then judge whether rate of temperature fall is in the range of scheduled rate.
It should be understood that calculating whether the actual rate of temperature fall obtained matches with scheduled rate, current system will indicate that
Whether cold power matches with an indoor thermic load and environment temperature, adjusts the work of refrigeration system accordingly, can be effective
Refrigerating efficiency is improved, energy consumption is reduced.
Step 112, the current rotating speed of compressor is maintained.
Specifically, when rate of temperature fall and scheduled rate match, rate of temperature fall now and current environment temperature are shown
Degree matching, and the cooling condition of refrigerator is well adapted for, the refrigerating efficiency of compartment is higher, and the power of consumption is relatively low, therefore, dimension
Hold the current rotating speed of compressor.
Step 114, the rotating speed of compressor is adjusted.
In this step, due to rate of temperature fall and scheduled rate mismatch, then show rate of temperature fall and current environment temperature
Mismatch, and the cooling condition of refrigerator can not be well adapted for, refrigerating efficiency will be caused low, or the excessive electric energy of consumption,
Therefore, in order to improve refrigerating efficiency, and reduce the rotating speed that compressor is adjusted in energy consumption, this step, and then cause the work(of compressor
Rate can be matched with environment temperature, and then with more preferably refrigerating efficiency, and lower energy consumption.
In above-described embodiment, temperature acquisition is carried out to refrigeration space according to timing, and calculate successively in refrigeration space
Rate of temperature fall, and then adjust the rotating speed of compressor so that the operating power of compressor can be matched with the thermic load of current compartment,
Refrigerating efficiency is effectively improved, and reduces energy consumption.
It should be understood that step 102 to step 104 and step 106 does not have clear and definite sequencing, the present embodiment
In, in order to make it easy to understand, after step 102 to step 104 is performed, step 106 is performed, and in other examples, step
106 can perform before step 102 to step 104, final judged result not impacted before and after both orders.
And step 102 to step 114 can be continuous circulation, that is to say, that after it have adjusted the rotating speed of compressor, again
The rate of temperature fall of compartment is judged, judges whether it matches with current environmental temperature, with current scheduled rate whether
Match somebody with somebody, and then the rotating speed of compressor is adjusted again.
In order to avoid frequently adjusting the rotating speed of compressor, control efficiency, in one embodiment, step are effectively increased
110 include:Judge whether the difference of the rate of temperature fall and the scheduled rate is less than predetermined threshold value, be then to perform step 112,
Otherwise step 114 is performed.
For example, judging whether the difference of the rate of temperature fall and the scheduled rate is less than predetermined threshold value, if it is not, then adjusting
The rotating speed of compressor.
In the present embodiment, the difference of rate of temperature fall and scheduled rate is absolute value, for example, judging the rate of temperature fall and institute
Whether the absolute value for stating the difference of scheduled rate is less than predetermined threshold value, and the difference is used to represent between rate of temperature fall and scheduled rate
Numerical value gap, be not positive and negative values, for embody rate of temperature fall whether the matching degree with scheduled rate, in such manner, it is possible to have
Effect avoids the rotating speed of frequently adjustment compressor.Specifically, if scheduled rate is a specific numerical value, due to there is error
Reason, even if having adjusted the rotating speed of compressor so that rate of temperature fall is adjusted, it is also difficult to so that rate of temperature fall be exactly equal to it is pre-
If speed, therefore, in the present embodiment, by judging whether both differences are less than predetermined threshold value, and then avoid frequently to pressure
The adjustment of contracting machine, when being less than predetermined threshold value due to the difference of rate of temperature fall and scheduled rate, then show gap between the two compared with
Small, in other words, rate of temperature fall is in the range of scheduled rate, it is therefore not necessary to adjust compressor again, it is to avoid frequently adjustment compression
The rotating speed of machine, effectively increases control efficiency.
In other embodiments, whether scheduled rate is number range, for example, judging the rate of temperature fall in scheduled rate
In the range of, it is then to perform step 112, otherwise performs step 114.In such manner, it is possible to avoid the rotating speed of frequently adjustment compressor, have
Effect improves control efficiency.
In order to reasonably control the rotating speed of compressor so that the rotating speed of compressor can adapt to current environment temperature, enter
And energy consumption is reduced with higher refrigerating efficiency and effectively, in one embodiment, step 114 includes:When the cooling speed
When rate is more than the scheduled rate, the rotating speed of the compressor is reduced, when the rate of temperature fall is less than the scheduled rate, is carried
The rotating speed of the high compressor.
Specifically, when rate of temperature fall be more than scheduled rate when, show that now rate of temperature fall is higher, that is, compressor turn
Speed is higher, now so that compartment temperature rapid decrease, although compartment temperature decline is too fast to enable to food fresh-keeping, makes
Power consumption consumption is excessive, be unfavorable for energy-conservation, and when rate of temperature fall is less than scheduled rate, show the rotating speed of now compressor compared with
Low, rate of temperature fall is relatively low, and indoor food is fresh-keeping between being unfavorable for, and also results in energy consumption waste, is equally unfavorable for energy-conservation.
Therefore, in the present embodiment, when the difference of rate of temperature fall and the scheduled rate is more than predetermined threshold value, further sentence
Whether disconnected rate of temperature fall is more than scheduled rate, when the rate of temperature fall is more than the scheduled rate, reduces the compressor
Rotating speed, when the rate of temperature fall is less than the scheduled rate, improves the rotating speed of the compressor, is carried when rate of temperature fall is smaller
High compressor rotating speed so that refrigeration space can obtain fast cooling in the case where thermic load is larger, improves refrigerating efficiency, and
Avoid compressor from flogging a dead horse, it is to avoid energy consumption is wasted, and when rate of temperature fall is larger, reduce compressor rotary speed so that refrigeration is empty
Between when thermic load is smaller, run, saved with relatively low rotating speed, refrigerating efficiency is improved by said process, and have
Effect reduction energy consumption.
In order to accurately calculate the rotating speed for obtaining compressor, and then the rotating speed after adjustment is more matched with scheduled rate,
In one embodiment, step 114 includes:Calculated according to the scheduled rate and the rate of temperature fall and obtain the compressor
Rotating speed is adjusted, the compressor operating according to the adjustment adjustment of rotational speed.
In the present embodiment, adjustment rotating speed is the rotating speed after compressor is adjusted, wherein, adjustment rotating speed and rate of temperature fall is into anti-phase
Functional relation is closed, in other words, adjustment rotating speed is inversely proportional with rate of temperature fall, i.e., rate of temperature fall is bigger, then adjustment rotating speed is smaller, cooling
Speed is smaller, then adjusts rotating speed bigger, that is to say, that when rate of temperature fall is bigger, and more than scheduled rate, then reduces compressor
Rotating speed, so, the adjustment rotating speed after adjustment are then reduced, conversely, adjustment rotating speed is then bigger, and then cause the rotating speed after adjustment and pre-
If speed is more matched.
In order to preferably save, and refrigerating efficiency is improved, in one embodiment, as shown in Fig. 2 after step 102
Also include:
Step 103a, the preset rotation speed of the compressor is obtained according to the environment temperature.
Step 103b, the compressor operating is controlled according to the preset rotation speed.
In the present embodiment, the preset rotation speed of compressor is obtained according to environment temperature, and compressor is turned according to default
Speed is operated, specifically, when compressor starts work, and preset rotation speed is obtained according to environment temperature, and compressor is turned with default
Speed is operated, i.e., the preset rotation speed can be considered as initial speed when compressor starts work.Due to the work of compressor
Rotating speed is matched with current environment temperature, and then the refrigerating efficiency of compressor is matched with current environmental temperature so that
Refrigerating efficiency is higher, and more efficiently energy consumption can be avoided to waste.
For example, step 102 includes, when compressor start, obtain in environment temperature, the present embodiment, in compressor start
Afterwards, environment temperature is gathered, preset rotation speed is then obtained according to environment temperature, compressor is operated according to preset rotation speed.
In order to preferably save, and refrigerating efficiency is improved, in one embodiment, the environment temperature is higher, described pre-
If rotating speed is bigger.For example, the environment temperature is lower, the preset rotation speed is smaller.For example, the numerical value of the environment temperature is got over
Greatly, the numerical value of the preset rotation speed is bigger.
In the present embodiment, the preset rotation speed of compressor and environment temperature are proportionate functional relation, specifically, when environment temperature
When degree is higher, temperature drop certain amplitude is allowed within the unit interval, it is necessary to large energy, and when environment temperature is relatively low, in list
Temperature drop certain amplitude is allowed in the time of position, it is necessary to smaller energy, therefore, in the present embodiment, the initial speed of compressor according to
Depending on current environment temperature, when environment temperature is higher, then the initial speed of compressor is higher, to improve refrigerating efficiency, and works as
Preceding environment temperature is lower, then the initial speed of compressor is lower, is conducive to preferably saving.
In order to improve refrigerating efficiency, and reduction energy consumption, in one embodiment, the environment temperature is higher, described default
Speed is smaller, for example, the environment temperature is lower, the scheduled rate is bigger.For example, the numerical value of the environment temperature is bigger,
The numerical value of the scheduled rate is smaller.
Specifically, at low ambient temperatures, fall off rate is very fast naturally for temperature, therefore, in order to it is current
Environment temperature is matched, and scheduled rate is larger, is conducive to saving energy consumption, is improved refrigerating efficiency, and in the higher situation of environment temperature
Under, temperature nature fall off rate is slower, now, in order to avoid consuming excessive energy, in order to be matched with current environmental temperature, in advance
If speed is smaller, it is to avoid compressor horsepower is excessive, and then more effective energy-conservation.
In order to improve the flexibility of refrigeration system, refrigerating efficiency is further improved, in one embodiment, step 114 is also
Including:The rotating speed of compressor is adjusted, and adjusts the rotating speed of refrigeration fan.
It should be understood that compressor is used for compression refrigerant, the refrigerant of HTHP is carried out from compressor conveying condenser
Cooling, the refrigerant of the cryogenic high pressure after cooling then absorbs heat of vaporization in evaporator, and then causes what is contacted with evaporator
Air themperature declines, and is cooled down.Refrigeration fan is used to send into the air after cooling in compartment, specifically, the sky after cooling
Gas is conveyed in the duct, refrigeration fan by the air of cooling be blown between it is indoor so that compartment is cooled down, and an indoor air
Then evaporator is delivered to again by pipeline to be cooled down.
Specifically, the rotating speed of refrigeration fan plays the transfer efficiency of cooling air, when the rotating speed of refrigeration fan is larger, then
Cooling air is indoor between being rapidly introduced into, and then quick backflow to evaporator is cooled down an indoor air, then the drop of compartment
Warm speed is larger, and when the rotating speed of refrigeration fan is smaller, then the rate of temperature fall of compartment is smaller.
Therefore, when rate of temperature fall and scheduled rate are mismatched, except the rotating speed by adjusting compressor is to rate of temperature fall
It is adjusted, rate of temperature fall can also be adjusted by adjusting the rotating speed of refrigeration fan, not only improves the spirit of refrigeration system
Activity, also further improves refrigerating efficiency.
In order to reasonably control the rotating speed of compressor so that the rotating speed of compressor can adapt to current environment temperature, enter
And energy consumption is reduced with higher refrigerating efficiency and effectively, in one embodiment, step 114 includes:When the cooling speed
When rate is more than the scheduled rate, the rotating speed of the refrigeration fan is reduced, when the rate of temperature fall is less than the scheduled rate,
Improve the rotating speed of the refrigeration fan.
Specifically, refrigeration fan rotating speed is improved when rate of temperature fall is smaller so that cooling air is indoor between rapidly entering, and makes
Compartment temperature rapid decrease is obtained, rate of temperature fall is improved, refrigerating efficiency is improved, it is to avoid energy consumption is wasted;And when rate of temperature fall is larger,
Refrigeration fan rotating speed is reduced, the flow velocity of cooling air is reduced, to reduce rate of temperature fall, is run, carried out with relatively low rotating speed
Energy-conservation, improves refrigerating efficiency, and effectively reduce energy consumption by said process.
The following is the specific embodiment of a refrigeration control method:
In the present embodiment, as shown in table 1, environment temperature is divided into 4 intervals, it is the scheduled rate of 4 gears of correspondence, pre-
If rotating speed and refrigeration fan preset rotation speed, wherein, preset rotation speed is the initial speed of compressor, and scheduled rate is between refrigeration
The default rate of temperature fall of room.
Table 1
For example, when environment temperature sensor determines environment temperature and is in more than 38 DEG C, compressor initial start rotating speed
For R1, the scheduled rate of refrigeration compartment is v1, refrigeration fan rotating speed N1;It is in when environment temperature sensor determines environment temperature
When between 25 DEG C and 38 DEG C, compressor initial start rotating speed is R2, the scheduled rate of refrigeration compartment is v2, refrigeration fan rotating speed N2,
By that analogy.The magnitude relationship of wherein each parameter is R1> R2> R3> R4, v1< v2< v3< v4, N1> N2> N3> N4, each ginseng
Several occurrences is set according to the body structure of refrigerator and the preferable cooling condition of each environment temperature.
When compressor start starts refrigeration, the size of the rate of temperature fall of refrigeration compartment is judged, and then adjust compressor
Rotating speed, the rotating speed of refrigeration fan, so as to change the output of refrigeration system cold, finally makes rate of temperature fall v close to scheduled rate vi.
As shown in figure 3, the refrigeration control method in the present embodiment comprises the following steps:
Step 302, compressor start.
Step 304, compartment temperature sensor is by setting cycle and number of times collection compartment temperature.
Step 306, calculate and judge whether rate of temperature fall v exceeds scheduled rate vi scopes.
Step 308, rotating speed operation is maintained.
Step 310, if rate of temperature fall v is less than scheduled rate vi preset range minimum values, compressor rotary speed is improved, if cooling
Speed v is more than scheduled rate vi preset maximum values, reduces compressor rotary speed, and refrigeration fan rotating speed changes with compressor rotary speed.
For example, setting each sampling period T of compartment temperature sensori=3min, times of collection n=30 times works as compressor
After startup, start to be acquired t to compartment temperaturei(i=1,2,3 ... 30), the rate of temperature fall v=(t of compartment30-t1)/T, i.e.,
Last temperature value collected in collection period makes the difference with first temperature value, obtains difference, and by difference divided by
Cycle duration, and then obtain temperature drop speed, i.e. rate of temperature fall within the cycle.
The rate of temperature fall v that above-mentioned calculating is obtained and scheduled rate viContrasted, if rate of temperature fall v is beyond default speed
Rate viCertain limit, i.e. rate of temperature fall v and scheduled rate viDifference be more than or equal to predetermined threshold value when, then to compressor
The rotating speed of rotating speed and refrigeration fan is adjusted.When rate of temperature fall v is more than scheduled rate vi, then turning for reduction compressor is controlled
Speed, and the rotating speed of refrigeration fan is reduced, when rate of temperature fall v is less than scheduled rate vi, then control improves the rotating speed of compressor, and carries
The rotating speed of high refrigeration fan.
Reduction or the rotating speed for improving compressor, are that the rotating speed of compressor is adjusted, in order to accurately adjust compressor
Rotating speed, adjustment rotating speed calculation formula be R=Ri*(vi/ v) * k, wherein, RiFor working as preset rotation speed or compressor
Preceding rotating speed, after compressor starts work, then RiFor initial speed, when compressor operating a period of time, and compressor turns
Speed have passed through after adjustment, then RiFor the current rotating speed of compressor.K is constant, and it is compressor rotary speed and output cold conversion
Proportionality coefficient, the displacement size chosen according to the structure, volume size and compressor of casing is set, and can be seen by above-mentioned formula
Go out, adjustment rotating speed R and rate of temperature fall v is inversely proportional, when rate of temperature fall v is larger, adjustment rotating speed R then reduces so that under refrigerating capacity
Drop, and then cause rate of temperature fall reduction, when rate of temperature fall v is smaller, adjustment rotating speed R then increases so that refrigerating capacity rises, and then
So that rate of temperature fall increases, so that rate of temperature fall v moves closer to scheduled rate vi, refrigerating efficiency is effectively improved, and reduce
Energy consumption.
Reduction or the rotating speed for improving refrigeration fan, i.e., be adjusted to the rotating speed of refrigeration fan, rotation speed of fan adjustment formula
For N=Ni*R/Ri* α, wherein, NiFor refrigeration fan preset rotation speed, α is rotation speed of fan and the corresponding ratio system of compressor rotary speed
Number, according to body structure, the air output and tank-volumes size of blower fan are set, and can be seen that by above-mentioned formula, refrigeration fan
The adjustment rotating speed R of rotating speed N and compressor is proportional, and when compressor rotary speed is bigger, the rotating speed of refrigeration fan is bigger, is conducive to carrying
High refrigerating efficiency, and compressor rotary speed it is lower when, the rotating speed of refrigeration fan is lower, is conducive to further reducing energy consumption.
In one embodiment there is provided a kind of refrigeration control device, as shown in figure 4, the refrigeration control device includes:
First temperature acquisition module 410, for obtaining environment temperature.
For example, first temperature acquisition module 410 includes temperature sensor, for example, first temperature acquisition module 410 is
First temperature sensor.
Scheduled rate determining module 420, it is corresponding with the environment temperature default for being determined according to the environment temperature
Speed.
Second temperature acquisition module 430, the compartment temperature of at least two refrigeration spaces is obtained for being spaced preset time.
For example, the second temperature acquisition module 430 includes temperature sensor, for example, the second temperature acquisition module 430 is
Second temperature sensor.
Rate of temperature fall acquisition module 440, rate of temperature fall is obtained for the compartment temperature according at least two.
Judge module 450, for judging whether the rate of temperature fall matches with the scheduled rate, if it is not, then adjustment pressure
The rotating speed of contracting machine.
In one embodiment, the judge module 450 is additionally operable to judge the rate of temperature fall and the scheduled rate
Whether difference is less than predetermined threshold value, if it is not, then adjusting the rotating speed of the compressor.
In one embodiment, as shown in figure 5, the judge module 450 includes the first adjustment submodule 451, described the
One adjustment submodule 451 is used to, when the rate of temperature fall is more than the scheduled rate, reduce the rotating speed of the compressor, work as institute
When stating rate of temperature fall less than the scheduled rate, the rotating speed of the compressor is improved.
In one embodiment, the judge module 450 is additionally operable to judge that the rate of temperature fall is with the scheduled rate
No matching, if it is not, then adjusting the rotating speed of compressor, and adjusts the rotating speed of refrigeration fan.
In one embodiment, referring again to Fig. 5, the judge module 450 also includes the second adjustment submodule 452,
The second adjustment submodule 452 is used to, when the rate of temperature fall is more than the scheduled rate, reduce the refrigeration fan
Rotating speed, when the rate of temperature fall is less than the scheduled rate, improves the rotating speed of the refrigeration fan.
In one embodiment there is provided a kind of refrigerator, including refrigeration control device described in any of the above-described embodiment.
In one embodiment there is provided a kind of refrigerator, the refrigerator includes refrigeration system, and the refrigeration system includes compression
Machine and refrigeration fan, wherein refrigerator are provided with compartment, and compartment is connected by pipeline with refrigeration system, and refrigeration fan is arranged on pipeline
Interior, the evaporator connection of pipeline and refrigeration system, the refrigerator is provided with compartment temperature sensor, the room temperature for judging compartment
Degree, the refrigerator is additionally provided with environment temperature sensor, for judging environment temperature.
The refrigerator carries out refrigeration control, the i.e. refrigerator using the refrigeration control method of any of the above-described embodiment and uses above-mentioned
The refrigeration control method control refrigeration system work of one embodiment, for example, refrigeration control device is used to control refrigeration system work
Make, for example, refrigerator controls refrigeration system to work by refrigeration control device, for example, refrigerator is using any of the above-described embodiment
Refrigeration control method controls compressor operating, and for example, and refrigerator is pressed using the refrigeration control method control of any of the above-described embodiment
Contracting machine and refrigeration fan work.
It should be noted that in said system embodiment, included modules are simply drawn according to function logic
Point, but above-mentioned division is not limited to, as long as corresponding function can be realized;In addition, each functional module is specific
Title is also only to facilitate mutually distinguish, the protection domain being not intended to limit the invention.
In addition, one of ordinary skill in the art will appreciate that realizing all or part of step in the various embodiments described above method
It can be by program to instruct the hardware of correlation to complete, corresponding program can be stored in read/write memory medium.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (16)
1. a kind of refrigeration control method, it is characterised in that including:
Obtain environment temperature;
Scheduled rate corresponding with the environment temperature is determined according to the environment temperature;
It is spaced the compartment temperature that preset time obtains at least two refrigeration spaces;
Compartment temperature obtains rate of temperature fall according at least two;
Judge whether the rate of temperature fall matches with the scheduled rate, if it is not, then adjusting the rotating speed of compressor.
2. refrigeration control method according to claim 1, it is characterised in that the judgement rate of temperature fall with it is described pre-
If whether speed matches, if it is not, the step of then adjusting the rotating speed of compressor includes:
Judge whether the difference of the rate of temperature fall and the scheduled rate is less than predetermined threshold value, if it is not, then adjusting the compression
The rotating speed of machine.
3. refrigeration control method according to claim 1, it is characterised in that the step of the rotating speed of the adjustment compressor
Suddenly include:
When the rate of temperature fall is more than the scheduled rate, the rotating speed of the compressor is reduced, when the rate of temperature fall is less than
During the scheduled rate, the rotating speed of the compressor is improved.
4. refrigeration control method according to claim 3, it is characterised in that the step of the rotating speed of the adjustment compressor
Suddenly include:
The adjustment rotating speed for obtaining the compressor is calculated according to the scheduled rate and the rate of temperature fall, is turned according to the adjustment
The whole compressor operating of velocity modulation.
5. refrigeration control method according to claim 1, it is characterised in that also wrapped after the step of obtaining environment temperature
Include:
The preset rotation speed of the compressor is obtained according to the environment temperature;
The compressor operating is controlled according to the preset rotation speed.
6. refrigeration control method according to claim 5, it is characterised in that the environment temperature is higher, described default turn
Speed is bigger.
7. refrigeration control method according to claim 1, it is characterised in that the environment temperature is higher, the default speed
Rate is smaller.
8. refrigeration control method according to claim 1, it is characterised in that the judgement rate of temperature fall with it is described pre-
If whether speed matches, if it is not, the step of then adjusting the rotating speed of compressor includes:
Judge whether the rate of temperature fall matches with the scheduled rate, if it is not, then adjusting the rotating speed of compressor, and adjust refrigeration
The rotating speed of blower fan.
9. refrigeration control method according to claim 8, it is characterised in that the step of the rotating speed of the adjustment refrigeration fan
Including:
When the rate of temperature fall is more than the scheduled rate, the rotating speed of the refrigeration fan is reduced, when the rate of temperature fall is small
When the scheduled rate, the rotating speed of the refrigeration fan is improved.
10. refrigeration control method according to claim 1, it is characterised in that the interval preset time obtains at least two
The step of compartment temperature of individual refrigeration space, includes:
The compartment temperature is obtained once before the environment temperature is obtained, in the acquisition environment temperature and in preset time
After obtain once the compartment temperature.
11. a kind of refrigeration control device, it is characterised in that including:
First temperature acquisition module, for obtaining environment temperature;
Scheduled rate determining module, for determining scheduled rate corresponding with the environment temperature according to the environment temperature;
Second temperature acquisition module, the compartment temperature of at least two refrigeration spaces is obtained for being spaced preset time;
Rate of temperature fall acquisition module, rate of temperature fall is obtained for the compartment temperature according at least two;
Judge module, for judging whether the rate of temperature fall matches with the scheduled rate, if it is not, then turn of adjustment compressor
Speed.
12. refrigeration control device according to claim 11, it is characterised in that the judge module is additionally operable to judge described
Whether the difference of rate of temperature fall and the scheduled rate is less than predetermined threshold value, if it is not, then adjusting the rotating speed of the compressor.
13. refrigeration control device according to claim 11, it is characterised in that the judge module includes the first adjustment
Module, the first adjustment submodule is used to, when the rate of temperature fall is more than the scheduled rate, reduce the compressor
Rotating speed, when the rate of temperature fall is less than the scheduled rate, improves the rotating speed of the compressor.
14. refrigeration control device according to claim 11, it is characterised in that the judge module is additionally operable to judge described
Whether rate of temperature fall matches with the scheduled rate, if it is not, then adjusting the rotating speed of compressor, and adjusts the rotating speed of refrigeration fan.
15. refrigeration control device according to claim 14, it is characterised in that the judge module also includes the second adjustment
Submodule, the second adjustment submodule is used to, when the rate of temperature fall is more than the scheduled rate, reduce the refrigeration wind
The rotating speed of machine, when the rate of temperature fall is less than the scheduled rate, improves the rotating speed of the refrigeration fan.
16. a kind of refrigerator, it is characterised in that filled including refrigeration control any one of claim 11 to claim 15
Put.
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