CN1548901A - Apparatus and method for operation control of refrigerator forward/backward rotary compressor - Google Patents
Apparatus and method for operation control of refrigerator forward/backward rotary compressor Download PDFInfo
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- CN1548901A CN1548901A CNA031299091A CN03129909A CN1548901A CN 1548901 A CN1548901 A CN 1548901A CN A031299091 A CNA031299091 A CN A031299091A CN 03129909 A CN03129909 A CN 03129909A CN 1548901 A CN1548901 A CN 1548901A
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Abstract
The control device for forward/backward rotation compressor in refrigerator includes current detecting part, temperature sensing part, microcomputer and forward/backward rotation signal generator. The current detecting part detects current applied to the compressor, the temperature sensing part detects the temperature inside the refrigerator, the microcomputer outputs compressor operation control signal based on the detected temperature in the refrigerator and via comparing the detected current value and the set reference current value, and the forward/backward rotation signal generator generates forward rotation signal or backward rotation signal to drive the compressor based on the compressor operation control signal from the microcomputer. The compressor control device can prevent lowering in refrigerator operation efficiency caused by the error operation of compressor.
Description
Technical field
The present invention relates to refrigerator just/contrary rotary compressor, relate in particular to refrigerator just/operation controller and the control method of contrary rotary compressor
Background technology
In general, be applicable to that the freeze cycle of refrigerator is divided into high kind of refrigeration cycle and low kind of refrigeration cycle substantially, high kind of refrigeration cycle is used for supplying cold air in refrigerating chamber; Low kind of refrigeration cycle is used for supplying cold air in refrigerating chamber.
High refrigeration freeze cycle or low refrigeration freeze cycle can not embody best freeze cycle according to operation mode because the length of expansion means is identical.
Below with reference to back accompanying drawing paper, circulation describes to the prior art refrigerator refrigeration.
As shown in Figure 1, the circulation of the refrigerator refrigeration of prior art mainly comprises compressor (1), condenser (2), capillary (3), first evaporimeter (F-EVA) and second evaporimeter (R-EVA).Compressor (1) sucks from the low temperature of evaporimeter discharge, the refrigerant steam of low pressure, and the refrigerant steam to this low temperature, low pressure carries out the steam that compressing and converting becomes high temperature, high pressure then; The heat of the high temperature that condenser (2) will be discharged from compressor (1), the refrigerant steam of high pressure is passed to water or air and the refrigerant steam of high temperature, high pressure is converted to the saturated liquid refrigerants of high pressure; The saturated liquid refrigerants of the high pressure that capillary (3) will be discharged from condenser (2) converts the refrigerant of low temperature, low pressure to; First evaporimeter (F-EVA) evaporates from the refrigerant that capillary (3) sucks low temperature, low pressure, discharges the air that turns cold after heat exchange to refrigerating chamber; Second evaporimeter (R-EVA) evaporates from the refrigerant that capillary (3) sucks low temperature, low pressure, discharges the air that turns cold after heat exchange to refrigerating chamber.
Below the freeze cycle with said structure is elaborated.
During at first freezing running when cooling operation (high), refrigerant at the compressed HTHP of above-mentioned compressor (1) flow into condenser (2), the refrigerant that flow into the HTHP of above-mentioned condenser (2) is condensed, and condensed refrigerant converts the refrigerant of low-temp low-pressure to through above-mentioned capillary (3).
Then, above-mentioned first evaporimeter (F-EVA) sucks above-mentioned low-temp low-pressure refrigerant, and above-mentioned low-temp low-pressure refrigerant is evaporated, and discharges the saturated vapor that does not have liquid component to refrigerating chamber then.
During the refrigeration running (when hanging down cooling operation), refrigerant at the compressed HTHP of compressor (1) flow into condenser (2), the refrigerant that flow into the HTHP of condenser (2) is condensed, and condensed refrigerant converts the refrigerant of low-temp low-pressure to through capillary (3).
Then, second evaporimeter (R-EVA) sucks the low-temp low-pressure refrigerant, and above-mentioned low-temp low-pressure refrigerant is evaporated, and discharges the air that turns cold through heat exchange to refrigerating chamber then.
Wherein, the compressor that freeze cycle adopted at above-mentioned refrigerator only is rotated according to positive direction, all the time be in high output state, but when not needing very strong refrigerating capacity after the temperature maintenance stable status in refrigerator, because above-mentioned compressor still is rotated according to positive direction, so power consumption is very big.
In order to address the above problem, refrigerator can adopt according to the refrigeration needs can reduce power consumption according to positive direction or against the compressor that direction is rotated.That is to say,, can produce less refrigerating capacity, can reduce power consumption according to contrary direction drive compression machine when the refrigerator process enters into stable state certain duration of runs.
But said apparatus has following shortcoming: carry out positive rotation or contrary rotation for the control compressor, can't judge that compressor is current whether according to control running in the right direction, so exist because the misoperation of compressor causes the inefficiency of refrigerator.
Summary of the invention
In order to overcome the above-mentioned shortcoming that prior art exists, the invention provides a kind of refrigerator just/operation controller and the method for contrary rotary compressor, compare with the current value of setting by experiment by the current value that relatively imposes on the compressor, judge the current whether correctly running of compressor, to prevent in advance because the low problem of running efficiency of the refrigerator that the misoperation of compressor causes.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of refrigerator just/operation controller of contrary rotary compressor, comprise the compressor of positive counter-rotating, it is characterized in that it mainly comprises current detecting part, temperature sense part, microcomputer and just/reverse rotation signal generating unit; Described current detecting part is used to detect the electric current that is applied on the compressor; Described temperature sense part is used for the temperature in the perception refrigerator; Described microcomputer is according to the detected the temperature inside the box of described temperature sense part, and output compressor operation control signal compares detected current value of described current detecting part and reference current value (0.6A), output compressor operation control signal; Just described/reverse rotation signal generating unit produces positive rotation signal or reverse rotation signal according to the running control signal of described microcomputer, imposes on compressor.
Aforesaid refrigerator just/operation controller of contrary rotary compressor, wherein microcomputer is when the compressor positive rotation turns round, if detected current value ratio reference current value (0.6A) is big, then described microcomputer output makes the running control signal of compressor positive rotation; If detected current value ratio reference current value (0.6A) is little, the output of then described microcomputer makes the running control signal that compressor cuts out.
Aforesaid refrigerator just/operation controller of contrary rotary compressor, wherein microcomputer is when compressor inverse rotation running, if detected current value ratio reference current value (0.6A) is little, the running control signal that then described microcomputer output makes the compressor inverse rotation; If detected current value ratio reference current value (0.6A) is big, then described microcomputer output makes the running control signal that compressor cuts out.
The method that the present invention solves its technical problem adopts following technical scheme:
Just a kind of method for controlling of operation of/contrary rotary compressor is characterized in that it comprises following process:
The 1st process: the user makes the compressor of refrigerator turn round, and the temperature in the perception refrigerator is selected positive rotation or contrary rotation according to temperature in the refrigerator;
The 2nd process: when the compressor positive rotation turns round, detect the current value that is applied on the compressor, then detected current value and reference current value (0.6A) are compared;
The 3rd process: according to the comparative result of the 2nd process,, then make compressor continue the positive rotation running if it is big to detect current value ratio reference current value (0.6A), if it is little to detect current value ratio reference current value (0.6A), close compressor then;
The 4th process: when compressor inverse rotation running, detect the current value that is applied on the compressor, will detect current value and reference current value (0.6A) then and compare;
The 5th process: according to the comparative result of described the 4th process,, then make compressor continue contrary rotation running if it is little to detect current value ratio reference current value (0.6A), if it is big to detect current value ratio reference current value (0.6A), close compressor then.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the schematic diagram that general refrigerator refrigeration circulates.
Fig. 2 be refrigerator of the present invention just/the running control schematic diagram of contrary rotary compressor.
Fig. 3 be refrigerator of the present invention just/working plan of contrary rotary compressor method for controlling of operation.
The figure grade explanation:
10: power supply unit 11: just/the reverse rotation signal generating unit
12: current detecting part 13: the temperature sense part
14: microcomputer
The specific embodiment
Below with reference to back accompanying drawing paper, to refrigerator of the present invention just/operation controller of contrary rotary compressor and the effect and the effect of method be elaborated.
As shown in Figure 2, refrigerator of the present invention just/the operation controller structure of contrary rotary compressor mainly comprises current detecting part (12), temperature sense part (1), microcomputer (14) and just/reverse rotation signal generating unit (11).Current detecting part (12) is used to detect the electric current that is applied on the compressor; Temperature sense part (13) is used for the temperature in the perception refrigerator; Microcomputer (14) is according to the detected the temperature inside the box of temperature sense part (13), and output compressor operation control signal according to the comparative result of detected current value of current detecting part (12) and reference current value, is exported the compressor operation control signal; According to the running control signal of microcomputer (14), just/reverse rotation signal generating unit (11) produces positive rotation signal or reverse rotation signal and imposes on compressor.
As shown in Figure 3, refrigerator of the present invention just/contrary rotary compressor method for controlling of operation is made up of 5 processes.
The 1st process (SP1～SP4): the turn round compressor of refrigerator of user, the temperature in the perception refrigerator is selected positive rotation or contrary rotation according to the temperature inside the box then; The 2nd process (SP5, SP6): when positive rotation turns round, detect the current value that is applied on the compressor, more above-mentioned detection current value and reference current value; The 3rd process (SP7, SP8): according to the comparative result of above-mentioned the 2nd process,, then continue to make compressor to carry out the positive rotation running if it is big to detect the current value ratio reference current value, if it is little to detect the current value ratio reference current value, close compressor then; The 4th process (SP9, SP10): when compressor inverse rotation running, detect the current value that is applied on the compressor, relatively detect current value and reference current value then; The 5th process (SP11, SP12): according to the comparative result of above-mentioned the 4th process,, then continue to make compressor to carry out contrary rotation running if it is little to detect the current value ratio reference current value, if it is big to detect the current value ratio reference current value, close compressor then.
Below to refrigerator of the present invention just/contrary rotary compressor method for controlling of operation is elaborated.
At first the user selects the operation mode of refrigerator, the compressor of running refrigerator, and the temperature in temperature sense part (13) the perception refrigerator imposes on microcomputer (14) according to sense temperature with corresponding temperature perceptual signal then.
If the temperature in the refrigerator is than specific design temperature height, then microcomputer (14) output is used for the running control signal of positive rotation compressor; If temperature is littler than specific design temperature in the refrigerator, then microcomputer (14) output is used for the running control signal of contrary rotary compressor.
So just/reverse rotation signal generating unit (11) makes compressor carry out positive rotation or contrary rotation according to the running control signal of microcomputer (14).
At this moment, current detecting part (12) detects the electric current that imposes on compressor, will detect current value then and impose on microcomputer (14), and microcomputer (14) relatively detects current value and reference current value according to the operating condition of compressor.So whether detect the rotation direction of compressor normal, continue current operating condition of compressor or close compressor.
At this moment the said reference current value is set at about 0.6A.
, then as follows with reference to Fig. 3 further to the present invention's explanation:
(stage of SP1～SP4): at first the user makes the compressor of refrigerator turn round, and the temperature in the perception refrigerator is selected positive rotation or contrary rotation according to the temperature inside the box then.，
(SP5, SP6) stage: if current compressor is in the positive rotation operating condition, detect the current value that is applied on the compressor, will detect current value then and reference current value compares.
(SP7) stage: according to comparative result, if it is big to detect the current value ratio reference current value, it is in the right direction then to be judged as current compressor operation, so continue to make compressor to carry out the positive rotation running.
(SP8) stage:, think that then the rotation direction of current compressor is incorrect, so close compressor if it is little to detect the current value ratio reference current value.
(SP9, SP10) stage: if current compressor is in contrary rotation operating condition, detect the current value that is applied on the compressor, will detect current value then and reference current value compares.
(SP11, SP12) stage: according to above-mentioned comparative result, if it is little to detect the current value ratio reference current value, it is in the right direction then to be judged as current compressor operation, so continue to make compressor to carry out contrary rotation running.If it is big to detect the current value ratio reference current value, think that then the rotation direction of current compressor is incorrect, so close compressor.
That is to say, in the present invention, during the direction of rotation of the temperature decision compressor in the refrigerator, compare by detecting the current value and the reference current value that are applied on the compressor, whether the rotation direction of judging current compressor is correct, makes compressor correctly work.
The effect of invention
In sum, can bring the A Xiaoguo that takes seat by the present invention: power on by being applied to compressor Flow valuve and the current value of having set by experiment compare, and whether judge the rotation direction of current compressor Determine by temperature in the refrigerator whether the operating condition of current compressor is normal, so can prevent in advance Because the low problem of running efficiency of the refrigerator that the misoperation of compressor causes.
Claims (4)
1, a kind of refrigerator just/operation controller of contrary rotary compressor, comprise the compressor of positive counter-rotating, it is characterized in that it mainly comprises current detecting part, temperature sense part, microcomputer and just/reverse rotation signal generating unit;
Described current detecting part is used to detect the electric current that is applied on the compressor;
Described temperature sense part is used for the temperature in the perception refrigerator;
Described microcomputer is according to the detected the temperature inside the box of described temperature sense part, and output compressor operation control signal compares detected current value of described current detecting part and reference current value (0.6A), output compressor operation control signal;
Just described/reverse rotation signal generating unit produces positive rotation signal or reverse rotation signal according to the running control signal of described microcomputer, imposes on compressor.
2, refrigerator according to claim 1 just/operation controller of contrary rotary compressor, it is characterized in that described microcomputer is when the compressor positive rotation turns round, if detected current value ratio reference current value (0.6A) is big, then described microcomputer output makes the running control signal of compressor positive rotation; If detected current value ratio reference current value (0.6A) is little, the output of then described microcomputer makes the running control signal that compressor cuts out.
3, refrigerator according to claim 1 just/operation controller of contrary rotary compressor, it is characterized in that described microcomputer is when compressor inverse rotation running, if detected current value ratio reference current value (0.6A) is little, the running control signal that then described microcomputer output makes the compressor inverse rotation; If detected current value ratio reference current value (0.6A) is big, then described microcomputer output makes the running control signal that compressor cuts out.
4, just a kind of method for controlling of operation of/contrary rotary compressor is characterized in that it comprises following process:
The 1st process: the user makes the compressor of refrigerator turn round, and the temperature in the perception refrigerator is selected positive rotation or contrary rotation according to temperature in the refrigerator;
The 2nd process: when the compressor positive rotation turns round, detect the current value that is applied on the compressor, then detected current value and reference current value (0.6A) are compared;
The 3rd process: according to the comparative result of the 2nd process,, then make compressor continue the positive rotation running if it is big to detect current value ratio reference current value (0.6A), if it is little to detect current value ratio reference current value (0.6A), close compressor then;
The 4th process: when compressor inverse rotation running, detect the current value that is applied on the compressor, will detect current value and reference current value (0.6A) then and compare;
The 5th process: according to the comparative result of described the 4th process,, then make compressor continue contrary rotation running if it is little to detect current value ratio reference current value (0.6A), if it is big to detect current value ratio reference current value (0.6A), close compressor then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031299091A CN1548901A (en) | 2003-05-22 | 2003-05-22 | Apparatus and method for operation control of refrigerator forward/backward rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031299091A CN1548901A (en) | 2003-05-22 | 2003-05-22 | Apparatus and method for operation control of refrigerator forward/backward rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1548901A true CN1548901A (en) | 2004-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031299091A Pending CN1548901A (en) | 2003-05-22 | 2003-05-22 | Apparatus and method for operation control of refrigerator forward/backward rotary compressor |
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| Country | Link |
|---|---|
| CN (1) | CN1548901A (en) |
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2003
- 2003-05-22 CN CNA031299091A patent/CN1548901A/en active Pending
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