CN105931920A - Control method for improving device performance of electronic temperature controller - Google Patents
Control method for improving device performance of electronic temperature controller Download PDFInfo
- Publication number
- CN105931920A CN105931920A CN201610400729.7A CN201610400729A CN105931920A CN 105931920 A CN105931920 A CN 105931920A CN 201610400729 A CN201610400729 A CN 201610400729A CN 105931920 A CN105931920 A CN 105931920A
- Authority
- CN
- China
- Prior art keywords
- voltage
- control method
- relay
- device performance
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2503—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques for measuring voltage only, e.g. digital volt meters (DVM's)
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
- H01H47/32—Energising current supplied by semiconductor device
- H01H47/325—Energising current supplied by semiconductor device by switching regulator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/09—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against over-voltage; against reduction of voltage; against phase interruption
Abstract
The invention discloses a control method for improving device performance of an electronic temperature controller. The control method is characterized in that protection judgement is given and/or working voltage of a relay is adjusted through detecting the working voltage of a compressor. According to the control method, through detecting the working voltage of the compressor, protection judgement is given; and the working voltage of the relay is also adjusted according to the measuring voltage, so that the energy is saved and the environment is protected, and the service life is prolonged.
Description
Technical field
The present invention relates to a kind of control method for improving electronic thermostat device performance.
Background technology
Domestic electronic temperature controller, circuit does not has the detection of compressor operating voltage, when unstable at line voltage
Occasion, such control method can have a strong impact on the service life of compressor, thus shorten the service life of complete machine.Additionally
On the one hand, about the control of relay.Domestic electronic temperature controller, direct total head attracting electric relay, have extra useless
Power consumption and heating.In view of electronic thermostat structure closely, internal heating is not easy to shed, simultaneously within power supply
The most closely, this extra useless power consumption and heating are the most energy-conservation, also can affect relay life for transformer device structure.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of control method for improving electronic thermostat device performance,
By the running voltage of compressor can be detected, provide protection and judge；Also can be according to measuring voltage, the work electricity of regulating relay
Pressure, energy-conserving and environment-protective, extend the life-span.
The control method for improving electronic thermostat device performance that the present invention provides, described control method is by inspection
The running voltage of measured compressed machine, provides protection and judges and/or the running voltage of regulating relay.
Further improve as the present invention: device includes compressor, relay, single-chip microcomputer and supply transformer, described
Control method comprises the following steps:
1), by measuring the secondary side output voltage peak value of supply transformer, it is thus achieved that magnitude of voltage once surveyed by transformator；
2), supply transformer secondary side output voltage rectification, the analog-to-digital conversion module of single-chip microcomputer after dividing potential drop, it is sent into, by fortune
Calculate, it is thus achieved that compressor operating voltage；
3) under-voltage overvoltage protection algorithm, meanwhile, the compressor operating voltage arrived according to measurement, to compressor are provided, determine to continuing
The high-frequency PWM of electrical equipment drives the dutycycle of signal so that the virtual value of relay working voltage is automatically adjusted according to measuring voltage.
Further improve as the present invention: generally electric less than the nominal operation of relay to the virtual value voltage of relay
Pressure.
Make use of the characteristic that relay pick-up voltage is different with release voltage, to the virtual value voltage of relay less than relay
The rated operational voltage of device, thus reaches effect that is energy-conservation and that increase the life-span.Powerful, but do not increase device, rely on public affairs
With device, use what device realized, increase bleeder circuit, 2 0603 resistance, but achieve a lot of senior control function,
The use occasion of extended products, increases competitiveness.
Accompanying drawing explanation
Fig. 1 is: the rectification circuit figure of the control method for improving electronic thermostat device performance of embodiment 1.
Fig. 2 is: the bleeder circuit figure of the control method for improving electronic thermostat device performance of embodiment 1.
Fig. 3 is: embodiment 1 for improving the control method of electronic thermostat device performance to compressor and relay control
Schematic diagram processed.
Detailed description of the invention
Below by way of specific embodiment, offer of the present invention is used for improving the control method of electronic thermostat device performance
Do further more detailed description:
Embodiment 1
The control method for improving electronic thermostat device performance of the present embodiment, described control method is for compress by detection
The running voltage of machine, provides protection and judges and/or the running voltage of regulating relay.
Device includes compressor, relay, single-chip microcomputer and supply transformer, and control method comprises the following steps:
1), by measuring the secondary side output voltage peak value of supply transformer, it is thus achieved that magnitude of voltage once surveyed by transformator；
2), supply transformer secondary side output voltage rectification, the analog-to-digital conversion module of single-chip microcomputer after dividing potential drop, it is sent into, by fortune
Calculate, it is thus achieved that compressor operating voltage；
3) under-voltage overvoltage protection algorithm, meanwhile, the compressor operating voltage arrived according to measurement, to compressor are provided, determine to continuing
The high-frequency PWM of electrical equipment drives the dutycycle of signal so that the virtual value of relay working voltage is automatically adjusted according to measuring voltage.
Generally give the virtual value voltage rated operational voltage less than relay of relay.As it is shown in figure 1, transformator TM1
Output through D3 rectification, obtain VNR, shown in Fig. 2 and Fig. 3, VNR through R9, R10 dividing potential drop be sent into MCU 19pin inspection
Surveying, single-chip microcomputer does compressor protection according to the VNR measured, and provides overvoltage and under-voltage judgement；Meanwhile, it is high to the signal of RL1
Frequently PWM, dutycycle is adjustable, regulates dutycycle according to VNR, and thus the voltage of relay DO1 coil is exactly adjustable.Adhesive
Moment, to total head, reduces by 20% voltage when maintaining state, if it find that line voltage reduces, VNR reduces, more suitably increases duty
Ratio, it is ensured that relay working voltage, it is achieved closed loop control.
Claims (3)
1. for improving the control method of electronic thermostat device performance, it is characterised in that:
Described control method is the running voltage by detecting compressor, provides protection and judges and/or the work of regulating relay
Voltage.
Control method for improving electronic thermostat device performance the most according to claim 1, described device includes pressure
Contracting machine, relay, single-chip microcomputer and supply transformer, it is characterised in that: described control method comprises the following steps:
1), by measuring the secondary side output voltage peak value of supply transformer, it is thus achieved that magnitude of voltage once surveyed by transformator；
2), supply transformer secondary side output voltage rectification, the analog-to-digital conversion module of single-chip microcomputer after dividing potential drop, it is sent into, by fortune
Calculate, it is thus achieved that compressor operating voltage；
3) under-voltage overvoltage protection algorithm, meanwhile, the compressor operating voltage arrived according to measurement, to compressor are provided, determine to continuing
The high-frequency PWM of electrical equipment drives the dutycycle of signal so that the virtual value of relay working voltage is automatically adjusted according to measuring voltage.
Control method for improving electronic thermostat device performance the most according to claim 2, it is characterised in that: generally
The rated operational voltage of relay it is less than to the virtual value voltage of relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400729.7A CN105931920A (en) | 2016-06-08 | 2016-06-08 | Control method for improving device performance of electronic temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400729.7A CN105931920A (en) | 2016-06-08 | 2016-06-08 | Control method for improving device performance of electronic temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105931920A true CN105931920A (en) | 2016-09-07 |
Family
ID=56832675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610400729.7A Pending CN105931920A (en) | 2016-06-08 | 2016-06-08 | Control method for improving device performance of electronic temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105931920A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2037115U (en) * | 1988-07-08 | 1989-05-03 | 李德恒 | Highly reliable protector for household refrigerator |
| CN2037832U (en) * | 1988-05-31 | 1989-05-17 | 江西师范大学 | Multifunctional electronic control and protection device for refrigerator |
| DE69900576D1 (en) * | 1998-10-29 | 2002-01-24 | Sanden Corp | Displacement control valve comprising a control circuit for compensating for fluctuations in the supply voltage |
| CN101510733A (en) * | 2009-03-26 | 2009-08-19 | 郭长来 | High-efficiency energy-saving power-supply circuit for DC magnetic motion device |
| CN104061654A (en) * | 2014-06-16 | 2014-09-24 | 邯郸美的制冷设备有限公司 | Radiating control device and radiating control method of variable frequency air conditioner |
-
2016
- 2016-06-08 CN CN201610400729.7A patent/CN105931920A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2037832U (en) * | 1988-05-31 | 1989-05-17 | 江西师范大学 | Multifunctional electronic control and protection device for refrigerator |
| CN2037115U (en) * | 1988-07-08 | 1989-05-03 | 李德恒 | Highly reliable protector for household refrigerator |
| DE69900576D1 (en) * | 1998-10-29 | 2002-01-24 | Sanden Corp | Displacement control valve comprising a control circuit for compensating for fluctuations in the supply voltage |
| CN101510733A (en) * | 2009-03-26 | 2009-08-19 | 郭长来 | High-efficiency energy-saving power-supply circuit for DC magnetic motion device |
| CN104061654A (en) * | 2014-06-16 | 2014-09-24 | 邯郸美的制冷设备有限公司 | Radiating control device and radiating control method of variable frequency air conditioner |
Non-Patent Citations (2)
| Title |
|---|
| （美）ANDREW D.ALTHOUSE等著；彦启森译: "《现代冷冻与空调原理•结构•安装•操作•保养•检修》", 31 July 2001, 上海交通大学出版社 * |
| 刘丽: "《一线师傅上门维修案例精选空调器电冰箱篇》", 31 July 2012, 国防工业出版社 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |