CN108870860A - A kind of direct-cooled frequency conversion refrigerator and its method for controlling number of revolution - Google Patents
A kind of direct-cooled frequency conversion refrigerator and its method for controlling number of revolution Download PDFInfo
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- CN108870860A CN108870860A CN201810765032.9A CN201810765032A CN108870860A CN 108870860 A CN108870860 A CN 108870860A CN 201810765032 A CN201810765032 A CN 201810765032A CN 108870860 A CN108870860 A CN 108870860A
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- frequency
- frequency conversion
- changeable compressor
- refrigerator
- display board
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
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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 present invention provides a kind of direct-cooled frequency conversion refrigerator, including frequency conversion integrated board, frequency-changeable compressor, compartment temperature acquisition module and the display board being electrically connected with frequency conversion integrated board；Compartment temperature acquisition module is to be respectively arranged with temperature sensor in each compartment of refrigerator, frequency conversion integrated board is integrated with refrigerator load input unit and compressor variable frequency driving unit, it and is to pass through built-in MCU main control chip while controlling refrigerator load input unit and compressor variable frequency driving unit, display board is equipped with circumstance temperature sensor, each room temperature angle value is received by frequency conversion integrated board and feeds back to display board, analytical calculation is carried out to ambient temperature value and each room temperature angle value by display board, show that frequency-changeable compressor optimum speed instructs, frequency conversion integrated board is sent to control the operation of frequency-changeable compressor.Meanwhile the invention also provides the method for controlling number of revolution based on above-mentioned direct-cooled frequency conversion refrigerator.The present invention can make refrigerator reach optimal operational condition under the conditions of different circumstance temperatures, sufficiently energy conservation, the great market competitiveness.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, are in particular a kind of direct-cooled frequency conversion refrigerator and its revolving speed controlling party
Method.
Background technique
Frequency conversion control technique is widely used in refrigerator field at present, is applied generally especially on wind cooling refrigerator, but straight
Application is less on cold refrigerator.For direct cooling refrigerator, if directly using existing converter technique, need to increase many zero
Component goes to realize, thus in order to not only can be reduced investment energy upgrading products again, it goes to realize often through seperated frequency conversion, that is, pass through master
Plate control refrigerator load input is controlled, then goes the operation of control frequency-changeable compressor by compressor variable frequency driving plate.The program needs
Stable power supply, electric power insufficient market area big for voltage fluctuation can not then be promoted；Although and program system letter
It is single, but compressor variable frequency driving plate higher cost, very big cost pressure is brought to complete system plant.Therefore direct cooling refrigerator directly becomes
Frequencyization develops driving force deficiency, and bring income is limited or even loses money, and control system complex circuit, once it breaks down, row
Failure cause and maintenance difficult are looked into, causes direct cooling refrigerator frequency conversionization to promote limited, the market competitiveness is insufficient.
Summary of the invention
The present invention is directed to solve one of above-mentioned technical problem at least to a certain extent.For this purpose, the present invention proposes that one kind is straight
Cold frequency conversion refrigerator improves the market competitiveness to be able to achieve direct cooling refrigerator frequency conversion, accomplish abundant energy conservation.
It is another object of the present invention to the compressor rotary speed control methods for proposing the direct-cooled frequency conversion refrigerator.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of direct-cooled frequency conversion refrigerator, including frequency conversion integrated board, the frequency-changeable compressor being electrically connected with frequency conversion integrated board, compartment
Temperature collecting module and display board；
The compartment temperature acquisition module is to be respectively arranged with temperature sensor in each compartment of refrigerator, for acquiring each
Room temperature angle value simultaneously feeds back to frequency conversion integrated board；
The frequency conversion integrated board is integrated with refrigerator load input unit and compressor variable frequency driving unit, and is by built-in
MCU main control chip control refrigerator load input unit and compressor variable frequency driving unit simultaneously, will by the frequency conversion integrated board
Each room temperature angle value received feeds back to display board by serial communication；
The display board is equipped with circumstance temperature sensor for acquiring ambient temperature value, by display board to ambient temperature value and
Each room temperature angle value received carries out analytical calculation, show that frequency-changeable compressor optimum speed instructs, and is sent to frequency conversion integrated board
To control the operation of frequency-changeable compressor.
Direct-cooled frequency conversion refrigerator of the invention, design feature are lain also in：
The refrigerator load input unit and compressor variable frequency driving unit share a Power Entry Module.
The refrigerator load input unit includes refrigerator load driving circuits and input circuit.
The invention also provides the method for controlling number of revolution of above-mentioned direct-cooled frequency conversion refrigerator, are：
It is by the collected each room temperature angle value of frequency conversion integrated board reception compartment temperature acquisition module and anti-by serial communication
It is fed to display board to go to analyze, display board passes through to each room temperature angle value, the collected environment temperature of circumstance temperature sensor received
The judging result whether value and refrigerator operate in the case of specific function together analysis processing, obtain frequency-changeable compressor optimum speed
Instruction is sent to frequency conversion integrated board, the fortune by frequency conversion integrated board according to the optimum speed instruction control frequency-changeable compressor received
Row.
Further, above-mentioned method for controlling number of revolution further includes：
Display board determines the base rpm of frequency-changeable compressor according to collected ambient temperature value, while defining specific function
In the case of specific speed of rotation；
Frequency conversion integrated board is that the base rpm sent according to display board instructs or specific speed of rotation instructs to correspond to and goes control frequency conversion
Compressor is run with corresponding revolving speed；
To the frequency-changeable compressor run with base rpm, at interval of n minutes by display board to the room temperature angle value received
Analytical calculation obtains room temperature angle value temperature difference Tr, carries out revolving speed amendment according to Δ Tr, is maintained at frequency-changeable compressor revolving speed most
Excellent state；
When environment temperature is raised and lowered, the corresponding upshift of the revolving speed of frequency-changeable compressor or downshift；
When frequency-changeable compressor operation duration reach N minute, the direct trip stop of revolving speed or arrive it is most high-grade.
Further, display board determines the base rpm of frequency-changeable compressor according to collected ambient temperature value, is by such as
Lower rule carries out：
The range of speeds of frequency-changeable compressor is defined as totally 7 base rpm gears of S1-S7；Wherein, S1 is minimum speed,
S7 is maximum speed；
The collected ambient temperature value TH of circumstance temperature sensor and the matching relationship of each base rpm gear of frequency-changeable compressor are：
When TH≤T1, the base rpm of corresponding frequency-changeable compressor is S2；
When T1 < TH≤T2, the base rpm of corresponding frequency-changeable compressor is S3；
When T2 < TH≤T3, the base rpm of corresponding frequency-changeable compressor is S4；
When T3 < TH≤T4, the base rpm of corresponding frequency-changeable compressor is S5；
When TH > T4, the base rpm of corresponding frequency-changeable compressor is S6.
Further, the specific speed of rotation instruction that display board defines includes refrigerator under quick-frozen, quickly cooling, failure and repair
The rotary speed instruction of frequency-changeable compressor operation.
Compared with the prior art, the present invention has the beneficial effect that：
The present invention controls refrigerator load input and frequency-changeable compressor driving by frequency conversion integrated board simultaneously, in conjunction with of the invention
Compressor rotary speed control method can be realized direct cooling refrigerator frequency conversion, meets the operation demand under the conditions of different circumstance temperatures, makes frequency conversion
Compressor reaches optimal operating status, it can be achieved that direct cooling refrigerator optimizes operation, and suitable for scope range of the fluctuation of voltage, big, electric power is supplied
Insufficient market is answered, accomplishes abundant energy conservation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the direct-cooled frequency conversion refrigerator of the present invention；
Fig. 2 is the flow chart of method for controlling number of revolution of the present invention.
In figure, 1 frequency conversion integrated board；2 frequency-changeable compressors；3 compartment temperature acquisition modules；4 display boards.
Specific embodiment
Fig. 1 is please referred to, the direct-cooled frequency conversion refrigerator of the present embodiment includes frequency conversion integrated board 1, is electrically connected with frequency conversion integrated board 1
Frequency-changeable compressor 2, compartment temperature acquisition module 3 and display board 4；
Compartment temperature acquisition module 3 is temperature sensor to be respectively arranged in each compartment of refrigerator, including refrigerated storage temperature passes
Sensor, cryogenic temperature sensor, for acquiring each room temperature angle value and feeding back to frequency conversion integrated board 1；
Frequency conversion integrated board 1 is integrated with refrigerator load input unit and compressor variable frequency driving unit, and is by built-in
MCU main control chip controls refrigerator load input unit and compressor variable frequency driving unit simultaneously, will be received by frequency conversion integrated board 1
Each room temperature angle value display board 4 is fed back to by serial communication；
Display board 4 is equipped with the circumstance temperature sensor for acquiring ambient temperature value, to ambient temperature value and is connect by display board 4
Each room temperature angle value received carries out analytical calculation, show that 2 optimum speed of frequency-changeable compressor instructs, and is sent to frequency conversion integrated board 1
To control the operation of frequency-changeable compressor 2.
Direct-cooled frequency conversion refrigerator of the invention, design feature are lain also in：
Refrigerator loads input unit and compressor variable frequency driving unit shares a Power Entry Module, accomplishes component cloth
Office is most simplified；In the present embodiment, power input is 150V-280V, meets Width funtion input, the big, electric power suitable for voltage fluctuation
Insufficient country or region.
It includes refrigerator load driving circuits and input circuit that refrigerator, which loads input unit, can be, but not limited to include each compartment
Temperature sensor input circuit, door switch input circuit, LED illumination circuit etc..
Above-mentioned temperature sensor includes the refrigerated storage temperature sensor for acquiring refrigerator room temperature value, and cold for acquiring
Freeze room temperature angle value cryogenic temperature sensor, refrigerated storage temperature sensor, cryogenic temperature sensor quantity can be 1 respectively
Or it is multiple, in the present embodiment, the quantity of refrigerated storage temperature sensor, cryogenic temperature sensor and circumstance temperature sensor is respectively set to 1
It is a.
The present embodiment also proposed the method for controlling number of revolution of above-mentioned direct-cooled frequency conversion refrigerator, be：
It is by the collected each room temperature angle value of frequency conversion integrated board reception compartment temperature acquisition module and anti-by serial communication
It is fed to display board to go to analyze, display board passes through to each room temperature angle value, the collected environment temperature of circumstance temperature sensor received
The judging result whether value and refrigerator operate in the case of specific function together analysis processing, obtain frequency-changeable compressor optimum speed
Instruction is sent to frequency conversion integrated board, the fortune by frequency conversion integrated board according to the optimum speed instruction control frequency-changeable compressor received
Row.
Above-mentioned method for controlling number of revolution further includes：
Display board determines the base rpm of frequency-changeable compressor according to collected ambient temperature value, while defining specific function
In the case of specific speed of rotation；
Frequency conversion integrated board is that the base rpm sent according to display board instructs or specific speed of rotation instructs to correspond to and goes control frequency conversion
Compressor is run with corresponding revolving speed；
To the frequency-changeable compressor run with base rpm, at interval of n minutes by display board to the room temperature angle value received
Analytical calculation obtains room temperature angle value temperature difference Tr, carries out revolving speed amendment according to Δ Tr, is maintained at frequency-changeable compressor revolving speed most
Excellent state；
When environment temperature is raised and lowered, the corresponding upshift of the revolving speed of frequency-changeable compressor or downshift；
When frequency-changeable compressor operation duration reach N minute, the direct trip stop of revolving speed or arrive it is most high-grade.
As a preferred mode, display board determines that the basis of frequency-changeable compressor turns according to collected ambient temperature value
Speed is to carry out according to the following rules：
The range of speeds of frequency-changeable compressor is defined as totally 7 base rpm gears of S1-S7；Wherein, S1 is minimum speed,
S7 is maximum speed；
The collected ambient temperature value TH of circumstance temperature sensor and the matching relationship of each base rpm gear of frequency-changeable compressor are：
When TH≤T1, the base rpm of corresponding frequency-changeable compressor is S2；
When T1 < TH≤T2, the base rpm of corresponding frequency-changeable compressor is S3；
When T2 < TH≤T3, the base rpm of corresponding frequency-changeable compressor is S4；
When T3 < TH≤T4, the base rpm of corresponding frequency-changeable compressor is S5；
When TH > T4, the base rpm of corresponding frequency-changeable compressor is S6.
The specific speed of rotation instruction that display board defines includes that refrigerator is compressed in quick-frozen, quickly cooling, failure and repair down coversion
The rotary speed instruction of machine operation.
To sum up, as shown in Fig. 2, the method for controlling number of revolution of the present embodiment is to carry out as follows：
1) refrigerator, which is powered, starts；
2) judge whether refrigerator room temperature, freezing compartment's temperature meet frequency-changeable compressor booting and adjust, if not satisfied, then
Return step 2)；If satisfied, then entering step 3)；
3) whether the instruction that frequency conversion integrated board is sent according to display board judges current setting state in spies such as quick-frozen, quickly coolings
Different functional status, if so, driving frequency-changeable compressor is run according to fixed revolving speed S5；Otherwise, it enters step 4)；
4) revolving speed of frequency-changeable compressor is controlled as follows：
1. the range of speeds of frequency-changeable compressor is defined as S1, S2, S3, S4, S5, S6, S7 totally 7 base rpm gears；
Wherein, S1 is minimum speed, and S7 is maximum speed；The collected ambient temperature value TH of circumstance temperature sensor and each base of frequency-changeable compressor
The matching relationship of plinth revolving speed gear is：
When TH < T1, the base rpm of corresponding frequency-changeable compressor is S2；
When T1≤TH < T2, the base rpm of corresponding frequency-changeable compressor is S3；
When T2≤TH < T3, the base rpm of corresponding frequency-changeable compressor is S4；
When T3≤TH < T4, the base rpm of corresponding frequency-changeable compressor is S5；
When TH >=T4, the base rpm of corresponding frequency-changeable compressor is S6；
2. display board ambient temperature value TH collected to circumstance temperature sensor according in 1. matching relationship analysis, determine and become
Base rpm instruction is sent to frequency conversion integrated board, controls frequency-changeable compressor by frequency conversion integrated board by the base rpm of frequency compressor
To correspond to revolving speed operation；
3. calculating analysis to the room temperature angle value received by display board at interval of n minutes, obtaining room temperature angle value deviation
Δ Tr, if t DEG C of Δ Tr rise/fall, one grade of the corresponding rise/fall of frequency-changeable compressor revolving speed is realized to frequency-changeable compressor
Revolving speed amendment until frequency-changeable compressor shut down；
4. if frequency-changeable compressor was continuously switched on up to N minutes, revolving speed directly rises second gear, and on this basis according to 3. into
The amendment of row revolving speed；
5. revolving speed directly rises to S7 grades if frequency-changeable compressor was continuously switched on up to 2N minutes；
5) return step 2).
Claims (7)
1. a kind of direct-cooled frequency conversion refrigerator, it is characterized in that：Including frequency conversion integrated board, compressed with the frequency conversion that frequency conversion integrated board is electrically connected
Machine, compartment temperature acquisition module and display board；
The compartment temperature acquisition module is to be respectively arranged with temperature sensor in each compartment of refrigerator, for acquiring each room temperature
Angle value simultaneously feeds back to frequency conversion integrated board；
The frequency conversion integrated board is integrated with refrigerator load input unit and compressor variable frequency driving unit, and is by built-in
MCU main control chip controls refrigerator load input unit and compressor variable frequency driving unit simultaneously, will be connect by the frequency conversion integrated board
Each room temperature angle value received feeds back to display board by serial communication；
The display board is equipped with the circumstance temperature sensor for acquiring ambient temperature value, by display board to ambient temperature value and reception
To each room temperature angle value carry out analytical calculation, obtain frequency-changeable compressor optimum speed instruct, be sent to frequency conversion integrated board to control
The operation of frequency-changeable compressor processed.
2. direct-cooled frequency conversion refrigerator according to claim 1, it is characterized in that：The refrigerator load input unit and compressor become
Frequency driving unit shares a Power Entry Module.
3. direct-cooled frequency conversion refrigerator according to claim 1, it is characterized in that：The refrigerator load input unit includes that refrigerator is negative
Carry driving circuit and input circuit.
4. the method for controlling number of revolution of direct-cooled frequency conversion refrigerator described in a kind of claim 1, it is characterized in that：
The collected each room temperature angle value of compartment temperature acquisition module is received by frequency conversion integrated board and is fed back to by serial communication
Display board goes to analyze, display board by receive each room temperature angle value, the collected ambient temperature value of circumstance temperature sensor and
The judging result whether refrigerator operates in the case of specific function together analysis processing, show that frequency-changeable compressor optimum speed instructs
It is sent to frequency conversion integrated board, the operation by frequency conversion integrated board according to the optimum speed instruction control frequency-changeable compressor received.
5. method for controlling number of revolution according to claim 4, it is characterized in that：
Display board determines the base rpm of frequency-changeable compressor according to collected ambient temperature value, while defining specific function situation
Under specific speed of rotation；
Frequency conversion integrated board is that the base rpm sent according to display board instructs or specific speed of rotation instructs to correspond to and goes control frequency conversion compression
Machine is run with corresponding revolving speed；
To the frequency-changeable compressor run with base rpm, the room temperature angle value received was analyzed by display board at interval of n minutes
It calculates, obtain room temperature angle value temperature difference Tr, carry out revolving speed amendment according to Δ Tr, frequency-changeable compressor revolving speed is made to be maintained at optimal shape
State；
When environment temperature is raised and lowered, the corresponding upshift of the revolving speed of frequency-changeable compressor or downshift；
When frequency-changeable compressor operation duration reach N minute, the direct trip stop of revolving speed or arrive it is most high-grade.
6. method for controlling number of revolution according to claim 5, it is characterized in that display board is true according to collected ambient temperature value
The base rpm for determining frequency-changeable compressor is to carry out according to the following rules：
The range of speeds of frequency-changeable compressor is defined as totally 7 base rpm gears of S1-S7；Wherein, S1 is minimum speed, S7
For maximum speed；
The collected ambient temperature value TH of circumstance temperature sensor and the matching relationship of each base rpm gear of frequency-changeable compressor are：
When TH≤T1, the base rpm of corresponding frequency-changeable compressor is S2；
When T1 < TH≤T2, the base rpm of corresponding frequency-changeable compressor is S3；
When T2 < TH≤T3, the base rpm of corresponding frequency-changeable compressor is S4；
When T3 < TH≤T4, the base rpm of corresponding frequency-changeable compressor is S5；
When TH > T4, the base rpm of corresponding frequency-changeable compressor is S6.
7. method for controlling number of revolution according to claim 5, it is characterized in that：The specific speed of rotation instruction that display board defines includes ice
The rotary speed instruction that case is run in quick-frozen, quickly cooling, failure and repair down coversion compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810765032.9A CN108870860A (en) | 2018-07-12 | 2018-07-12 | A kind of direct-cooled frequency conversion refrigerator and its method for controlling number of revolution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810765032.9A CN108870860A (en) | 2018-07-12 | 2018-07-12 | A kind of direct-cooled frequency conversion refrigerator and its method for controlling number of revolution |
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| CN108870860A true CN108870860A (en) | 2018-11-23 |
Family
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| CN201810765032.9A Pending CN108870860A (en) | 2018-07-12 | 2018-07-12 | A kind of direct-cooled frequency conversion refrigerator and its method for controlling number of revolution |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953775A (en) * | 2019-11-21 | 2020-04-03 | 海信（山东）冰箱有限公司 | Refrigeration equipment and refrigeration equipment control method |
| CN112665303A (en) * | 2020-12-28 | 2021-04-16 | Tcl家用电器（合肥）有限公司 | Refrigerator control method and device, refrigerator and computer readable storage medium |
| CN112797725A (en) * | 2020-12-30 | 2021-05-14 | 长虹美菱股份有限公司 | Direct-cooling single-cycle refrigerator frequency conversion control method |
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| US5224355A (en) * | 1991-04-01 | 1993-07-06 | Samsung Electronics Co., Ltd. | Plural temperature adjustment apparatus for refrigerator |
| CN102519217A (en) * | 2011-12-16 | 2012-06-27 | 合肥美菱股份有限公司 | Variable-frequency refrigerator and control method thereof |
| CN206459424U (en) * | 2017-02-14 | 2017-09-01 | 合肥美菱股份有限公司 | A kind of master control/driving integrated controller applied in frequency-conversion freezer |
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2018
- 2018-07-12 CN CN201810765032.9A patent/CN108870860A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5224355A (en) * | 1991-04-01 | 1993-07-06 | Samsung Electronics Co., Ltd. | Plural temperature adjustment apparatus for refrigerator |
| CN102519217A (en) * | 2011-12-16 | 2012-06-27 | 合肥美菱股份有限公司 | Variable-frequency refrigerator and control method thereof |
| CN206459424U (en) * | 2017-02-14 | 2017-09-01 | 合肥美菱股份有限公司 | A kind of master control/driving integrated controller applied in frequency-conversion freezer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953775A (en) * | 2019-11-21 | 2020-04-03 | 海信（山东）冰箱有限公司 | Refrigeration equipment and refrigeration equipment control method |
| CN110953775B (en) * | 2019-11-21 | 2021-08-17 | 海信（山东）冰箱有限公司 | Refrigeration equipment and refrigeration equipment control method |
| CN112665303A (en) * | 2020-12-28 | 2021-04-16 | Tcl家用电器（合肥）有限公司 | Refrigerator control method and device, refrigerator and computer readable storage medium |
| CN112797725A (en) * | 2020-12-30 | 2021-05-14 | 长虹美菱股份有限公司 | Direct-cooling single-cycle refrigerator frequency conversion control method |
| CN112797725B (en) * | 2020-12-30 | 2022-05-10 | 长虹美菱股份有限公司 | Direct-cooling single-cycle refrigerator frequency conversion control method |
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