CN1458415A - Operation control method for linear compressor - Google Patents
Operation control method for linear compressor Download PDFInfo
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- CN1458415A CN1458415A CN 02117800 CN02117800A CN1458415A CN 1458415 A CN1458415 A CN 1458415A CN 02117800 CN02117800 CN 02117800 CN 02117800 A CN02117800 A CN 02117800A CN 1458415 A CN1458415 A CN 1458415A
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Abstract
The present invention relates to the control method of linear compressor. The control method includes two steps of confirmation and repeated starting, that is, after the linear compressor is started, it is confirmed whether to produce current trip, and in case of producing current trip to shut down the linear compressor, the linear compressor will be started repeatedly. By means of the said method of the present invention, when the linear compressor is stopped by current trip, the compressor may be re-started without need of turning off the power supply before turning on, and this can prevent the stored matter from deteriorating.
Description
Technical field
The present invention relates to a kind of method for controlling of operation of use in refrigerator linear compressor, specifically, relate to and a kind ofly after current trip, start linear compressor repeatedly in case store the method for controlling of operation of the rotten linear compressor of thing in the refrigerator.
Background technique
To cause the driving of above-mentioned linear compressor to be stopped fully if general linear compressor produces current trip, and need the user directly to turn-off again to open again behind the whole power supply to start above-mentioned linear compressor.
Fig. 1 is the schematic representation of general linear compressor drive circuit.As shown in Figure 1, the drive circuit of above-mentioned linear compressor comprises: rectification and partes glabra (10), current converter (20), linear compressor (30), current detecting part (40), microcomputer (50) and door drive portion (60).AC rectification commonly used and the level and smooth back output dc voltage that partes glabra (10) will be imported gone in above-mentioned rectification; By the gate drive signal of door drive portion (60), above-mentioned current converter (20) converts the VDC of above-mentioned rectification and partes glabra (10) to three-phase alternating voltage; Above-mentioned linear compressor (30) drives by the three-phase alternating voltage of above-mentioned current converter (20); Above-mentioned current detecting part (40) detects the electric current that flows through above-mentioned linear compressor (30); Above-mentioned microcomputer (50) is equivalent in the pulse-width signal process of initial setting frequency in output, according to the above-mentioned pulse-width signal of current detection signal control output of above-mentioned current detecting part (40); Above-mentioned door drive portion (60) adds to above-mentioned current converter (20) with its gate drive signal after obtaining the pulse-width signal of above-mentioned microcomputer (50) output.
Below, the driving of general linear compressor with above-mentioned drive circuit is elaborated.
At first, above-mentioned rectification and partes glabra (10) will be used the ac power supply rectification always and level and smooth VDC adds to above-mentioned current converter (20).
So by the gate drive signal of door drive portion (60), above-mentioned current converter (20) converts above-mentioned VDC to the above-mentioned linear compressor of three-phase alternating voltage rear driving (30).
Then, above-mentioned current detecting part (40) detects the electric current that flows through above-mentioned linear compressor (30) and testing signal is sent into microcomputer (50).
So above-mentioned microcomputer (50) is equivalent in the pulse-width signal process of initial setting frequency sine wave in output, according to the testing signal power controlling specific output of above-mentioned current detecting part (40).
Afterwards, according to the pulse-width signal of above-mentioned microcomputer (50), above-mentioned door drive portion (60) adds to above-mentioned current conversion portion (20) with gate drive signal.
Fig. 2 is that the method for controlling of operation of linear compressor in the prior art drives flow chart.
As shown in Figure 2, above-mentioned microcomputer (50) is by in above-mentioned current detecting part (40) the sensory current process, if exceed the current value allowed band, 5 times current trip causes the driving of above-mentioned linear compressor (30) to be stopped in three minutes of the meeting uncontrollable above-mentioned linear compressor of generation (30).
At this moment because above-mentioned microcomputer (50) is "on" position, so need the user directly with behind the whole power remove again power-on just can restart above-mentioned linear compressor (30).
In addition, when driving, have the situation of oiling agent under can produce serious friction do not cause cause superheating phenomenon between the piston of above-mentioned linear compressor (30) and the cylinder at above-mentioned linear compressor (30).So the contact position of piston and cylinder is melted also inter-adhesive and the metaboly of generation piston.If can cause the driving of above-mentioned linear compressor (30) to be stopped fully, just can restart above-mentioned linear compressor so need to turn-off behind the whole power supply again power-on because of the metaboly of above-mentioned piston has produced current trip.
Summary of the invention
In order to overcome the above-mentioned shortcoming that existing technology exists, the invention provides a kind of method for controlling of operation of linear compressor, so that when causing linear compressor to quit work because of current trip, can turn-off behind the whole power supply power-on again, but it is rotten to prevent the storage thing in the refrigerator directly to start linear compressor repeatedly.
The technical solution adopted for the present invention to solve the technical problems is:
The present invention at first confirms whether to have produced current trip after linear driven compressor; Confirm that the result as having produced current trip, then starts linear compressor repeatedly.
Utilize said method, when linear compressor quits work because of current trip, needn't turn-off behind the whole power supply power-on again, but directly start linear compressor repeatedly, thereby prevent that the storage thing in the refrigerator is rotten.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the block diagram of general linear compressor drive circuit.
Fig. 2 is the running control flow chart of linear compressor in the prior art.
Fig. 3 is the flow chart of the method for controlling of operation of linear compressor of the present invention.
Fig. 4 is the timing waveform that produces current trip.
Embodiment
The drive circuit of method for controlling of operation that is applicable to linear compressor of the present invention is identical with Fig. 1.
Fig. 3 is the flow chart of the method for controlling of operation of linear compressor of the present invention.As shown in Figure 3, the method for controlling of operation of linear compressor of the present invention has following process: after linear compressor drives, confirm whether to produce current trip; Confirm that the result turn-offs linear compressor as having produced current trip, then starts above-mentioned linear compressor repeatedly.
Below with reference to Fig. 1, the driving of linear compressor among the present invention is elaborated.
At first, drive above-mentioned linear compressor (30) after, microcomputer (50) detects whether to have produced current trip by current detecting part (40), if do not produce current trip, then the normal above-mentioned linear compressor of control (30) remains in operation.
On the contrary, if produced current trip, above-mentioned microcomputer (50) is then controlled above-mentioned linear compressor (30) and is restarted repeatedly; At this moment, output alarm/trouble signal is reminded the user, will be carried out above-mentioned process of restarting repeatedly before keeping in repair, if carrying out not producing current trip in the restart procedure repeatedly, then remove above-mentioned trouble signal and alarm.
Below, the driving that produces the linear compressor under the above-mentioned current trip situation is elaborated.At first, above-mentioned microcomputer (50) is after driving above-mentioned linear compressor (30), judge whether to have produced current trip, if above-mentioned current trip produces number of times in 3 times, then every t1 time (about 3 minutes) is carried out restarting of above-mentioned linear compressor (30); If the above-mentioned current trip that produces is more than 3 times, then current trip group's number of times increases by 1, above-mentioned linear compressor (30) is restarted after passing through the t2 time (about 5 minutes) again, rejudges whether produce current trip.
Fig. 4 is the timing waveform that produces current trip.
As shown in Figure 4, when the time spacing is that the current trip of t1 produces after 3 times, when restarting above-mentioned linear compressor after 5 minutes, current trip group's number of times will increase by 1.
At this moment, if above-mentioned current trip group's number of times in 5, then restarts above-mentioned linear compressor (30) through behind the t2; If current trip group's number of times reaches at 5 o'clock, give the alarm/trouble signal, restart above-mentioned linear compressor (30) after the time through t2 again.
Afterwards, export alarm/trouble signal again and remind the user, before keeping in repair, will carry out above-mentioned process of restarting repeatedly, if, then remove above-mentioned trouble signal and alarm carrying out not producing current trip in the restart procedure repeatedly.
Claims (3)
1, a kind of method for controlling of operation of linear compressor is characterized in that comprising affirmation and starts two steps repeatedly, promptly after linear driven compressor, at first confirms whether to have produced current trip; As confirm to have produced current trip, then start linear compressor repeatedly.
2, the method for controlling of operation of linear compressor according to claim 1 is characterized in that described setting up procedure repeatedly comprises the 1st stage and the 2nd stage; The 1st stage was to close at linear compressor to have no progeny, and judged whether the current trip number of times is consistent with the 1st stipulated number; The 2nd stage through restarting linear compressor after the 1st retard time, when the judged result in the 1st stage is consistent, then gave the alarm/trouble signal and force to turn-off compressor promptly when the judged result in the 1st stage is inconsistent.
3, the method for controlling of operation of linear compressor according to claim 1 is characterized in that described setting up procedure repeatedly comprises the 1st stage, the 2nd stage, the 3rd stage and the 4th stage; The 1st stage promptly closed at linear compressor and has no progeny, and judged whether the current trip number of times is consistent with first stipulated number; The 2nd stage is promptly when the judged result in the 1st stage is inconsistent, then through restarting linear compressor after the 1st retard time; Promptly when the judged result in the 1st stage was consistent, current trip group's number of times increased by 1 time and also judged whether current trip group's number of times is consistent with the 2nd stipulated number the 3rd stage; The 4th stage is promptly when the 3rd stage, judged result was inconsistent, through restarting compressor after the 2nd retard time; , alarm/trouble signal then takes place and force to turn-off compressor when consistent as the 3rd stage judged result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02117800 CN1228549C (en) | 2002-05-17 | 2002-05-17 | Operation control method for linear compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02117800 CN1228549C (en) | 2002-05-17 | 2002-05-17 | Operation control method for linear compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1458415A true CN1458415A (en) | 2003-11-26 |
| CN1228549C CN1228549C (en) | 2005-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02117800 Expired - Fee Related CN1228549C (en) | 2002-05-17 | 2002-05-17 | Operation control method for linear compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN1228549C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102639941A (en) * | 2009-06-19 | 2012-08-15 | (学)斗源学院 | Method for controlling electric compressor |
| CN104863835A (en) * | 2015-04-27 | 2015-08-26 | 海南汉地阳光石油化工有限公司 | Air compressor control method and system |
-
2002
- 2002-05-17 CN CN 02117800 patent/CN1228549C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102639941A (en) * | 2009-06-19 | 2012-08-15 | (学)斗源学院 | Method for controlling electric compressor |
| CN104863835A (en) * | 2015-04-27 | 2015-08-26 | 海南汉地阳光石油化工有限公司 | Air compressor control method and system |
| CN104863835B (en) * | 2015-04-27 | 2016-12-07 | 海南汉地阳光石油化工有限公司 | A kind of air compressor machine control method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1228549C (en) | 2005-11-23 |
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Granted publication date: 20051123 |