CN107084592A - A kind of wind cooling refrigerator method for controlling frequency conversion and its refrigerator - Google Patents
A kind of wind cooling refrigerator method for controlling frequency conversion and its refrigerator Download PDFInfo
- Publication number
- CN107084592A CN107084592A CN201710385602.7A CN201710385602A CN107084592A CN 107084592 A CN107084592 A CN 107084592A CN 201710385602 A CN201710385602 A CN 201710385602A CN 107084592 A CN107084592 A CN 107084592A
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- 238000001816 cooling Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 17
- 230000033228 biological regulation Effects 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a kind of wind cooling refrigerator method for controlling frequency conversion and its refrigerator, it is characterized in that：First start-stop cycle after wind cooling refrigerator defrost, compressor is run with higher rotating speed, second start-stop cycle after into defrost, compressor recovers the rotating speed operation before defrost, Homes Using TV is calculated after continuous operation (N+1) individual start-stop cycle, and according to default target Homes Using TV, it is determined that start next time compressor operating frequency.The present invention can timely and effectively adjust compressor refrigerating capacity according to refrigerator load variations, refrigerator is run all the time in ideal state, can reduce the temperature inside the box fluctuation, reach the purpose that noise is low, energy consumption is small.
Description
Technical field
The present invention relates to a kind of wind cooling refrigerator method for controlling frequency conversion and using the refrigerator of this method, belong to refrigerator control neck
Domain.
Background technology
Freezer compressor is divided into invariable frequency compressor and frequency-changeable compressor.Invariable frequency compressor product type is abundant, technology maturation,
It is widely used, but its frequency is immutable, and refrigerating capacity is definite value under certain operating mode.Frequency-changeable compressor can realize its rotating speed of change
And then change compressor refrigerating capacity, at high load conditions compressor can high-speed cruising, refrigerator can fast-refrigerating cooling, low
Compressor can maintain the slow-speed of revolution to run in the state of load or stabilization, and refrigerant system efficiency is high, effectively reduce compressor start-stop frequency
Rate, fluctuates the temperature inside the box small, noise is low.
At present, frequency-changeable compressor in rotating speed control aspect mainly by the way of " draw shelves ", i.e., according to environment temperature and case
Interior temperature, compressor revolution divides different gears, and compressor operating frequency is determined by the environment temperature and the temperature inside the box being presently in
Fixed, when refrigerator compartment temperature is higher than compartment starting point some value of temperature, compressor rotary speed can rise to some accordingly
Gear.In fact suitable compressor refrigerating capacity demand is not only related to environment temperature, in addition to refrigerator load variations itself, than
Such as refrigerator open or load is put into, therefore the control method is difficult timely and effective when accomplishing to be changed by casing load condition
Adjustment.
A kind of refrigerator method for controlling frequency conversion of patent No. ZL 2,014 1 0065706.6 and its application elaborate that direct cooling refrigerator becomes
Frequency compressor frequency control method, by calculating the actual Homes Using TV of refrigerator and goal-selling Homes Using TV, it is determined that start next time pressure
Contracting unit frequency.Its each compartment temperature can accordingly rise after wind cooling refrigerator defrost, according to " a kind of refrigerator method for controlling frequency conversion and its should
With " patent control method, if any compartment temperature is higher than compartment starting point temperature T1When more than DEG C, the temperature difference is Δ T1, then in time
Update rotating speed Si=S(i-1)+K1*ΔT1, (N+1) individual cycle is run by this rotating speed, Homes Using TV η is recalculatedi, i.e. wind cooling refrigerator is every
Compressor can be run with high-frequency after secondary defrost, then compressor frequency be adjusted again according to casing load, with wind cooling refrigerator
In the white cycle, the frequency of compressor is done to be adjusted repeatedly.Therefore the control method is difficult to meet wind cooling refrigerator frequency-changeable compressor frequency control
Demand processed.
From the foregoing, it will be observed that wind cooling refrigerator fails to give full play to frequency conversion when applying published frequency-changeable compressor FREQUENCY CONTROL technology
The characteristics of compressor.
The content of the invention
To overcome existing technological deficiency, it is an object of the invention to provide a kind of wind cooling refrigerator method for controlling frequency conversion and its
Refrigerator, to give full play to the advantage of frequency-changeable compressor variable speed, makes refrigerator reach noise reduction, the purpose of energy-conservation.
The present invention solves technical problem and adopted the following technical scheme that：
A kind of the characteristics of wind cooling refrigerator control method for frequency of the invention is to carry out as follows：
Step 1, when entering first cooling cycle after wind cooling refrigerator defrost, make turning for first cooling cycle compressor
Speed is Si, and Si=S(i-1)+K4, wherein, S(i-1)For the rotating speed of compressor before the wind cooling refrigerator defrost, K4For constant, value model
Enclose for 0-2000；
In step 2, first cooling cycle after wind cooling refrigerator defrost, compressor continuous operating time >=t1 points are judged
Whether clock is set up, if so, then make the rotating speed of first cooling cycle be updated to Si, and Si=S(i-1)+K3, until first system
After cold cycle terminates, step 3 is performed, otherwise, step 3 is directly performed；Wherein, S(i-1)For the rotating speed of compressor before updating, K3For
Constant, K3Span is 0-2100；T1 spans are 20-360 minutes；
Step 3, enter second cooling cycle after wind cooling refrigerator defrost, make the rotating speed of second cooling cycle compressor
For Si, and Si=S(i-2), and run after (N+1) individual cooling cycle, perform step 4；Wherein, S(i-2)For the wind cooling refrigerator defrost
The rotating speed of preceding compressor, N is constant, and N span is 2-10 times；
Step 4, make next cooling cycle compressor rotating speed be Si, and after Si=Ki × S (i-1), wherein, S (i-1)
For (N+1) individual cooling cycle rotating speed, Ki is regulation coefficient, and is had：
Ki=ηi/η0 (1)
In formula (1), η0For set target Homes Using TV；ηiIt is averaged for continuous N number of start-stop cycle before the wind cooling refrigerator
Homes Using TV, and have：
ηi=compressor accumulated running time/total time (2)
Step 5, after the wind cooling refrigerator defrost in second cooling cycle, judge any compartment temperature whether be higher than from
The starting point temperature of body compartment, and temperature difference between the two is T1 DEG C of Δ, if so, then making second cooling cycle compressor
Rotating speed is updated to Si, and Si=S(i-1)+K1×ΔT1, and run after (N+1) individual cooling cycle, perform step 4；Otherwise, step is performed
Rapid 6；Wherein, S (i-1) is the rotating speed of compressor before updating；
Step 6, after wind cooling refrigerator defrost second open in cooling cycle, judge compressor continuous operating time >=t1 point
Whether clock is set up, if so, then make the rotating speed of second cooling cycle compressor be updated to Si, and Si=S(i-1)+K3, and run
(N+1) individual cooling cycle, performs step 4；Otherwise, step 7 is performed；Wherein, S (i-1)For the rotating speed of compressor before updating；
Step 7, after wind cooling refrigerator defrost in second cooling cycle, judge whether any compartment design temperature is lowered,
And the temperature difference after lowering is Δ T2, if so, then making the rotating speed of second cooling cycle compressor be updated to Si, and Si=S(i-1)
+K2×ΔT2, and run after (N+1) individual cycle, perform step 4；Otherwise, step 4 is directly performed；Wherein, K2For constant, value
Scope is 0-1500；S(i-1)For the rotating speed of compressor before updating；
The characteristics of wind cooling refrigerator method for controlling frequency conversion of the present invention, lies also in,
Described regulation coefficient KiIf, | Ki- 1 |≤a, then Ki=1, a span are 0-0.2.
The rotating speed calculated value SiIf more than compressor maximum speed, compressor is run with maximum speed, if tachometer
Calculation value SiLess than compressor minimum speed, then compressor is run with minimum speed.
The target Homes Using TV η0For the preferable Homes Using TV of the wind cooling refrigerator, span is 40%-100%.
A kind of the characteristics of refrigerator of the invention is that the refrigerator frequency conversion uses above-mentioned wind cooling refrigerator method for controlling frequency conversion.
Compared with existing technology, beneficial effects of the present invention are embodied in：
The present invention can be raised according to the temperature inside the box after wind cooling refrigerator defrost, and load increase timely and effectively increases compressor and turned
Speed, improves compressor refrigerating capacity, while the refrigerating capacity for timely and effectively adjusting compressor can be changed according to refrigerator actual load,
Make to quickly enter ideal state operation after refrigerator defrost, reached the purpose for reducing energy consumption, reducing noise.
Brief description of the drawings
Fig. 1 control flow charts of the present invention；
Fig. 2 frequency-changeable compressor changed power tendency charts of the present invention.
Embodiment
In the present embodiment, as shown in figure 1, a kind of wind cooling refrigerator control method for frequency, is to carry out as follows：
Step 1, when entering first cooling cycle after wind cooling refrigerator defrost, make turning for first cooling cycle compressor
Speed is Si, and Si=S(i-1)+K4, wherein, S(i-1)For the rotating speed of compressor before the wind cooling refrigerator defrost, K4For constant, value model
Enclose for 0-2000；
In step 2, first cooling cycle after wind cooling refrigerator defrost, compressor continuous operating time >=t1 points are judged
Whether clock is set up, if so, then make the rotating speed of first cooling cycle be updated to Si, and Si=S(i-1)+K3, until first system
After cold cycle terminates, next step is performed, wherein, S(i-1)For the rotating speed of compressor before updating, K3For constant, K3Span is 0-
2100；T1 spans are 20-360 minutes；
Step 3, enter second cooling cycle after wind cooling refrigerator defrost, make the rotating speed of second cooling cycle compressor
For Si, and Si=S(i-2), and run after (N+1) individual cooling cycle, step 4 is performed, wherein, S(i-2)For the wind cooling refrigerator defrost
The rotating speed of preceding compressor, N is constant, and N span is 2-10 times；
Step 4, make next cooling cycle compressor rotating speed be Si, and after Si=Ki × S (i-1), wherein, S (i-1)
For (N+1) individual cooling cycle rotating speed, Ki is regulation coefficient, and is had：
Ki=ηi/η0 (1)
In formula (1), if | Ki- 1 |≤a, then Ki=1, a span are 0-0.2；η0For set target Homes Using TV,
That is the preferable Homes Using TV of wind cooling refrigerator, span is 40%-100%；ηiFor continuous N number of start-stop cycle before the wind cooling refrigerator
Average Homes Using TV, and have：
ηi=compressor accumulated running time/total time (2)
Step 5, after the wind cooling refrigerator defrost in second cooling cycle, judge any compartment temperature whether be higher than from
The starting point temperature of body compartment, and temperature difference between the two is T1 DEG C of Δ, if so, then making second cooling cycle compressor
Rotating speed is updated to Si, and Si=S(i-1)+K1×ΔT1, and run after (N+1) individual cooling cycle, step 4 is performed, is recalculated out
Probability, otherwise, performs step 6；Wherein, S (i-1) is the rotating speed of compressor before updating；
Step 6, after wind cooling refrigerator defrost second open in cooling cycle, judge compressor continuous operating time >=t1 point
Whether clock is set up, if so, then make the rotating speed of second cooling cycle compressor be updated to Si, and Si=S(i-1)+K3, and run
(N+1) after individual cooling cycle, step 4 is performed, Homes Using TV is recalculated, otherwise, perform step 7；Wherein, S (i-1)Before renewal
The rotating speed of compressor；
Step 7, after wind cooling refrigerator defrost in second cooling cycle, judge whether any compartment design temperature is lowered,
And the temperature difference after lowering is Δ T2, if so, then making the rotating speed of second cooling cycle compressor be updated to Si, and Si=S(i-1)
+K2×ΔT2, and run after (N+1) individual cycle, step 4 is performed, Homes Using TV is recalculated, otherwise, step 4 is directly performed；Its
In, K2For constant, span is 0-1500；S(i-1)For the rotating speed of compressor before updating；
In specific implementation, rotating speed calculated value SiIf more than compressor maximum speed, compressor is run with maximum speed, if
Rotating speed calculated value SiLess than compressor minimum speed, then compressor is run with minimum speed.
In the present embodiment, a kind of refrigerator of use above refrigerator method for controlling frequency conversion, as shown in Fig. 2 wind cooling refrigerator exists
First cooling cycle properly increases compressor operating rotating speed after defrost terminates, and refrigerator can be made to freeze rapidly to stable state, the
Two cooling cycle compressors just recover the stable operation rotating speed to defrost, rapid to maintain refrigerator stable state, so as to reach section
The purpose of energy power saving.
Claims (5)
1. a kind of wind cooling refrigerator control method for frequency, it is characterized in that carrying out as follows：
Step 1, when after wind cooling refrigerator defrost enter first cooling cycle when, the rotating speed for making first cooling cycle compressor is
Si, and Si=S(i-1)+K4, wherein, S(i-1)For the rotating speed of compressor before the wind cooling refrigerator defrost, K4For constant, span is
0-2000；
In step 2, first cooling cycle after wind cooling refrigerator defrost, compressor continuous operating time >=t1 minutes be is judged
It is no to set up, if so, then make the rotating speed of first cooling cycle be updated to Si, and Si=S(i-1)+K3, until first refrigeration week
After phase terminates, step 3 is performed, otherwise, step 3 is directly performed；Wherein, S(i-1)For the rotating speed of compressor before updating, K3For constant,
K3Span is 0-2100；T1 spans are 20-360 minutes；
Step 3, enter second cooling cycle after wind cooling refrigerator defrost, the rotating speed for making second cooling cycle compressor is Si,
And Si=S(i-2), and run after (N+1) individual cooling cycle, perform step 4；Wherein, S(i-2)To be pressed before the wind cooling refrigerator defrost
The rotating speed of contracting machine, N is constant, and N span is 2-10 times；
Step 4, make next cooling cycle compressor rotating speed be Si, and after Si=Ki × S (i-1), wherein, S (i-1) is the
(N+1) individual cooling cycle rotating speed, Ki is regulation coefficient, and is had：
Ki=ηi/η0 (1)
In formula (1), η0For set target Homes Using TV；ηiFor the average start in continuous N number of start-stop cycle before the wind cooling refrigerator
Rate, and have：
ηi=compressor accumulated running time/total time (2)
Step 5, after the wind cooling refrigerator defrost in second cooling cycle, judge whether any compartment temperature is higher than between itself
The starting point temperature of room, and temperature difference between the two is T1 DEG C of Δ, if so, then making the rotating speed of second cooling cycle compressor
It is updated to Si, and Si=S(i-1)+K1×ΔT1, and run after (N+1) individual cooling cycle, perform step 4；Otherwise, step 6 is performed；
Wherein, S (i-1) is the rotating speed of compressor before updating；
Step 6, after wind cooling refrigerator defrost second open in cooling cycle, judge compressor continuous operating time >=t1 minutes be
It is no to set up, if so, then make the rotating speed of second cooling cycle compressor be updated to Si, and Si=S(i-1)+K3, and run (N+1)
Individual cooling cycle, performs step 4；Otherwise, step 7 is performed；Wherein, S (i-1)For the rotating speed of compressor before updating；
Step 7, after wind cooling refrigerator defrost in second cooling cycle, judge whether any compartment design temperature is lowered, and under
Temperature difference after tune is Δ T2, if so, then making the rotating speed of second cooling cycle compressor be updated to Si, and Si=S(i-1)+K2×
ΔT2, and run after (N+1) individual cycle, perform step 4；Otherwise, step 4 is directly performed；Wherein, K2For constant, span is
0-1500；S(i-1)For the rotating speed of compressor before updating.
2. wind cooling refrigerator method for controlling frequency conversion according to claim 1, it is characterised in that described regulation coefficient KiIf, |
Ki- 1 |≤a, then Ki=1, a span are 0-0.2.
3. wind cooling refrigerator method for controlling frequency conversion according to claim 1, it is characterised in that the rotating speed calculated value SiIf big
In compressor maximum speed, then compressor is run with maximum speed, if rotating speed calculated value SiLess than compressor minimum speed, then press
Contracting machine is run with minimum speed.
4. wind cooling refrigerator method for controlling frequency conversion according to claim 1, it is characterised in that the target Homes Using TV η0For institute
The preferable Homes Using TV of wind cooling refrigerator is stated, span is 40%-100%.
5. a kind of refrigerator, it is characterised in that the refrigerator frequency conversion is used in claim 1-4 described in any claim
Wind cooling refrigerator method for controlling frequency conversion.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195133A (en) * | 2017-12-29 | 2018-06-22 | Tcl家用电器（合肥）有限公司 | A kind of refrigerator and its control method, control device |
| CN108759290A (en) * | 2018-06-07 | 2018-11-06 | 长虹美菱股份有限公司 | A kind of frequency conversion refrigerator compressor frequency control method |
| CN110736284A (en) * | 2019-10-30 | 2020-01-31 | 南京创维家用电器有限公司 | control method for improving use noise of intelligent air-cooled variable frequency refrigerator |
| CN110986466A (en) * | 2019-12-16 | 2020-04-10 | 长虹美菱股份有限公司 | Self-adaptive defrosting control method |
| CN111207562A (en) * | 2020-01-17 | 2020-05-29 | 海信（山东）冰箱有限公司 | Refrigerator operation control method and refrigerator |
| CN112378158A (en) * | 2020-11-06 | 2021-02-19 | 青岛海尔工业智能研究院有限公司 | Refrigerator control method and device, electronic equipment and storage medium |
| CN113330262A (en) * | 2018-12-10 | 2021-08-31 | Bsh家用电器有限公司 | Refrigerator and method for initiating a defrost process in a refrigerator |
| CN113915917A (en) * | 2021-04-12 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator, variable frequency compressor and control method thereof |
| CN115435543A (en) * | 2021-06-02 | 2022-12-06 | 青岛海尔生物医疗股份有限公司 | Method and device for controlling variable-frequency compressor of refrigerator and refrigerator |
| CN115468350A (en) * | 2021-06-11 | 2022-12-13 | 海信容声(广东)冰箱有限公司 | Refrigerator and ambient temperature calculation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108195133B (en) * | 2017-12-29 | 2020-08-21 | Tcl家用电器（合肥）有限公司 | Refrigerator and control method and control device thereof |
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| CN110736284A (en) * | 2019-10-30 | 2020-01-31 | 南京创维家用电器有限公司 | control method for improving use noise of intelligent air-cooled variable frequency refrigerator |
| CN110986466A (en) * | 2019-12-16 | 2020-04-10 | 长虹美菱股份有限公司 | Self-adaptive defrosting control method |
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| CN111207562B (en) * | 2020-01-17 | 2021-08-27 | 海信（山东）冰箱有限公司 | Refrigerator operation control method and refrigerator |
| CN111207562A (en) * | 2020-01-17 | 2020-05-29 | 海信（山东）冰箱有限公司 | Refrigerator operation control method and refrigerator |
| CN112378158A (en) * | 2020-11-06 | 2021-02-19 | 青岛海尔工业智能研究院有限公司 | Refrigerator control method and device, electronic equipment and storage medium |
| CN112378158B (en) * | 2020-11-06 | 2022-06-14 | 卡奥斯工业智能研究院(青岛)有限公司 | Refrigerator control method and device, electronic equipment and storage medium |
| CN113915917A (en) * | 2021-04-12 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator, variable frequency compressor and control method thereof |
| CN115435543A (en) * | 2021-06-02 | 2022-12-06 | 青岛海尔生物医疗股份有限公司 | Method and device for controlling variable-frequency compressor of refrigerator and refrigerator |
| CN115435543B (en) * | 2021-06-02 | 2023-07-21 | 青岛海尔生物医疗股份有限公司 | Method and device for controlling variable frequency compressor of refrigerator and refrigerator |
| CN115468350A (en) * | 2021-06-11 | 2022-12-13 | 海信容声(广东)冰箱有限公司 | Refrigerator and ambient temperature calculation method thereof |
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