CN2814802Y - Air conditioner fan motor stepless speed regulating device - Google Patents
Air conditioner fan motor stepless speed regulating device Download PDFInfo
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- CN2814802Y CN2814802Y CNU2005200604690U CN200520060469U CN2814802Y CN 2814802 Y CN2814802 Y CN 2814802Y CN U2005200604690 U CNU2005200604690 U CN U2005200604690U CN 200520060469 U CN200520060469 U CN 200520060469U CN 2814802 Y CN2814802 Y CN 2814802Y
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- fan motor
- controller
- regulating device
- stepless speed
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Abstract
The utility model discloses a stepless speed regulating device for fan motors of air conditioners. The utility model uses bidirectional controlled silicon for regulating speeds of a single-phase asynchronous adjustable fan motor. The utility model comprises an over-zero detecting circuit, a controller, a Darlington array, a bidirectional controlled silicon speed regulating circuit and a single-phase asynchronous adjustable fan motor, wherein the controller has the triggering and delaying time T< L > of over-zero pulse signals. When the controller receives over-zero pulse signals, a starting pulse with the pulse width of T< ST > is sent out after the time of T< L >, and the rising edge of the starting pulse passes through the bidirectional controlled silicon speed regulating circuit for triggering the switching of bidirectional controlled silicon. The triggering and delaying time T< L > is bigger than or equal to the difference phase T< P > between load voltage and current. The width T< ST > of the starting pulse sent by the controller is bigger than or equal to the starting time T< S > of the fan motor. Because the program of a main control chip of the controller controls the triggering and delaying time T< L > of pulses, the controller controls the size of the ratio of T< ON >: T< OFF >: T< ON >: T< OFF > between the switching time and the cutting time of the voltage of a power supply, the size of the effective value of the input voltage of the fan motor is determined and the size of the rotary speed of the fan motor is determined.
Description
Technical field
The utility model relates to the air-conditioning technique field, is specifically related to a kind of window air conditioner carries out speed governing to fan electromotor with bidirectional triode thyristor mode of speed regulation.
Background technology
Window air conditioner mainly adopts relay that its fan electromotor is carried out the third gear speed governing in the market, promptly the break-make of the input voltage (high, medium and low) of fan electromotor is controlled, and then reached the switching of fan electromotor wind speed between third gear wind speed (high, medium and low) by three relays.Though this Electric Machine Control mode is simple, but the windscreen of controllable adjustable is few, it is big that relay takies the pcb board space, increase the words of windscreen as need, then need to increase relay, hardware and software is changed big, and not too is fit to use more advanced control algolithm it is carried out many grades of (〉=4) speed governing, thereby has limited the further optimization of window air conditioner control strategy.
Also have the speed governing of a kind of employing AC reactor in addition, the inductance value that changes the reactor of contacting with fan electromotor is regulated the voltage that is applied to fan electromotor, thereby changes the rotary speed of motor.But the inductor volume is big, speed adjusting performance is poor, and the low speed retaining starts difficulty, and can't realize the continuous stepless speed governing.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of bidirectional triode thyristor mode of speed regulation of window air conditioner fan motor is provided, and it can realize the stepless time adjustment of window air conditioner fan motor by the make-and-break time ratio of control AC power.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of air-conditioner fan motor stepless speed-regulating device, comprise controller, zero cross detection circuit, darlington array, bidirectional triode thyristor alignment circuit and single-phase asynchronous adjustable fan motor, it is characterized in that: described zero cross detection circuit is electrically connected with the input of controller; One end of described bidirectional triode thyristor alignment circuit is electrically connected with the output of controller by darlington array, and the other end is connected to single-phase asynchronous adjustable fan motor.
Described bidirectional triode thyristor alignment circuit is included in a RC buffer circuit in parallel between bidirectional triode thyristor V107 anode and the negative electrode (being composed in series by safety capacitor C 110 and resistance R 107), with the climbing of deboost, prevents false triggering for generating.Optical coupler E101 connects with resistance R 104 and inserts between bidirectional triode thyristor V107 anode and the gate pole, to control the big electric current bidirectional triode thyristor of flowing through.Control end one termination of optical coupler+12V power supply, the other end links by resistance R 106 and darlington array N101 pin 13, and N101 pin 4 is electrically connected with controller TMP86P808N pin 24.Bidirectional triode thyristor V107 negative electrode links to each other with the live wire of single-phase asynchronous adjustable fan motor, and the zero line of fan electromotor directly is connected with zero-power line.
Described zero cross detection circuit comprises two parallel diodes (V109 and V110) that link to each other with transformer T107 secondary, the other end of parallel diode and resistance R 114 series connections are to the base stage of triode V108, the direct ground connection of the emitter of triode V108, series resistor R115 between resistance R 114 front ends and the ground; Connect+the 5V power supply behind the collector electrode of triode V108 and resistance R 113 polyphones.Triode V108 current collection is the zero cross signal output very, is connected with controller TMP86P808N pin 20.
Described darlington array is selected ULN2003AN for use.
Be provided with adjustable zero-crossing pulse signal triggering T time of delay in the described controller
L, and the trigger delay time T through setting
LSending a pulsewidth is T
STStarting impulse.This starting impulse signal is electrically connected with the control end of bidirectional triode thyristor by the bidirectional triode thyristor alignment circuit, and the working end of bidirectional triode thyristor links to each other with fan electromotor.The rising edge of starting impulse triggers the bidirectional triode thyristor conducting through the bidirectional triode thyristor alignment circuit.The bidirectional triode thyristor conducting has just determined the size of fan electromotor input voltage effective value with the size of the time ratio that ends, thereby has determined the rotating speed size of fan electromotor.
Described trigger delay time T
LMore than or equal to load voltage-current and phase difference T
P
Described starting impulse width T
STMore than or equal to fan electromotor T start-up time
S
In a word, when the zero passage testing circuit detects voltage zero-cross, send a zero-crossing pulse signal, after controller detects this signal, through T to controller
LSending a pulsewidth is T
STStarting impulse, the rising edge of starting impulse triggers the bidirectional triode thyristor conducting, and fan electromotor starts.Controlling trigger impulse T time of delay in the main control chip program of controller
LThereby, controlling the make-and-break time ratio T of supply voltage
ON: T
OFF, T
ON: T
OFFSize just determined the size of blower fan input voltage effective value, also therefore determined the rotating speed size of fan electromotor.
The air-conditioner fan motor stepless speed-regulating device that the utility model provides, it is by zero-crossing pulse signal triggering T time of delay of a setting
L, the make-and-break time ratio of control AC power.Compared with prior art have the following advantages:
1. can realize stepless speed regulation, air quantity is adjustable continuously;
2. simple in structure, at the bottom of the cost;
3. control mode variation and advanced control technology combine, and can realize the Based Intelligent Control of window air conditioner fan motor;
4. the controller upgrading is convenient, only needs the controller software upgrading, and more changer controller can realize the upgrading of controller, and other hardware need not be done any change.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Fig. 1 is a system block diagram among the utility model embodiment;
Fig. 2 is the schematic diagram of zero cross detection circuit among the utility model embodiment;
Fig. 3 is the schematic diagram of bidirectional triode thyristor alignment circuit among the utility model embodiment;
Fig. 4 is a waveform schematic diagram among the utility model embodiment.
Embodiment
Air-conditioner fan motor stepless speed-regulating device of the present utility model is shown in accompanying drawing 1,2.The zero-crossing pulse output of zero cross detection circuit links to each other with controller TMP86P808N, when the zero passage testing circuit detects voltage zero-cross, sends a zero-crossing pulse signal by ZERO TEST SIGNAL end to controller.After controller detects this signal, through T
LSending a pulsewidth is T
STThe starting impulse signal, darlington array N101 amplifies this signal, after the thyristor speed control circuit is received this signal by the CONTROLSIGNAL termination, bidirectional triode thyristor closure, single-phase asynchronous adjustable fan electric motor starting running.Among Fig. 2, switching diode V109 and V110 select IN4148 for use, and fixed carbon resister R113 and R114 select RT-1/4W-10k ± 5% for use, and fixed carbon resister R115 selects RT-1/4W-3k ± 5% for use, and the NPN triode selects 9013 for use.Among Fig. 3, peace silicon capacitor C 110 is selected X2-a.c250V-0.047 μ for use, and fixed carbon resister R107 selects RT-1W-270 ± 5% for use, and bidirectional triode thyristor V107 selects BTA12-600B for use, and optical coupler E101 selects MOC3021 for use, and darlington array N101 selects ULN2003AN for use.
As shown in Figure 4, when zero passage testing circuit detection input supply voltage zero passage (Fig. 4 a is a supply voltage input waveform, and phase place T is the supply voltage cycle), zero cross detection circuit all can be launched a pulse signal to master controller at the supply voltage near zero-crossing point.Fig. 4 b is the zero-crossing pulse signal, when master controller detects the supply voltage zero passage, through T
LSending just like the pulsewidth shown in Fig. 4 c is T
STThe starting impulse signal, T
STBe starting impulse width, T
LBe the trigger delay time.And trigger delay time T
LMust be more than or equal to the start-up time of fan electromotor, so that fan electromotor has time enough to start at each supply voltage in the cycle.And the starting impulse signal that controller sent is greater than usually or equal load voltage-current and phase difference T
P, bidirectional triode thyristor ends, and makes starting impulse send after bidirectional triode thyristor ends fully.Otherwise motor may cause the afterflow of bidirectional triode thyristor not exclusively can not normally start.The rising edge of starting impulse triggers the bidirectional triode thyristor conducting, and the voltage signal of output is shown in Fig. 4 d, and Fig. 4 d is blower voltage input waveform, wherein T
OnBe bidirectional triode thyristor ON time, T
OFFBe the bidirectional triode thyristor turn-off time, fan electromotor starts immediately.
In the bidirectional triode thyristor mode of speed regulation, controlling trigger impulse T time of delay in the master controller TMP86P808N program
LThereby, the make-and-break time ratio T of control supply voltage
ON: T
OFF, T
ON: T
OFFSize just determined the size of blower fan input voltage effective value, also therefore determined the rotating speed size of fan electromotor.
Claims (7)
1. an air-conditioner fan motor stepless speed-regulating device comprises controller, zero cross detection circuit, darlington array and bidirectional triode thyristor alignment circuit, it is characterized in that: described zero cross detection circuit is electrically connected with the input of controller; One end of described bidirectional triode thyristor alignment circuit is electrically connected with the output of controller by darlington array, and the other end is connected to fan electromotor.
2. air-conditioner fan motor stepless speed-regulating device according to claim 1, it is characterized in that: described bidirectional triode thyristor alignment circuit comprises between negative electrode that buffer circuit that electric capacity and resistance string be unified into inserts bidirectional triode thyristor and the anode and linking to each other with fan electromotor that the gate pole of bidirectional triode thyristor is electrically connected with darlington array by optical coupler.
3. air-conditioner fan motor stepless speed-regulating device according to claim 2, it is characterized in that: described zero cross detection circuit comprises two parallel diodes that link to each other with the supply voltage input, the other end of diode and the base stage that is connected to triode after a resistance is connected, the direct ground connection of the emitter of triode; The collector electrode of triode links to each other with an end pin of controller.
4. according to the described air-conditioner fan motor stepless speed-regulating device of claim 2, it is characterized in that: described darlington array adopts ULN2003AN.
5. according to each described air-conditioner fan motor stepless speed-regulating device of claim 1 to 4, it is characterized in that: be provided with adjustable zero-crossing pulse signal triggering T time of delay in the described controller chip
L, and the trigger delay time T through setting
LSending a pulsewidth is T
STStarting impulse.
6. according to the described air-conditioner fan motor stepless speed-regulating device of claim 5, it is characterized in that: described trigger delay time T
LMore than or equal to load voltage-current and phase difference T
P
7. according to the described air-conditioner fan motor stepless speed-regulating device of claim 6, it is characterized in that: described starting impulse width T
STMore than or equal to fan electromotor T start-up time
S
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200604690U CN2814802Y (en) | 2005-06-27 | 2005-06-27 | Air conditioner fan motor stepless speed regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200604690U CN2814802Y (en) | 2005-06-27 | 2005-06-27 | Air conditioner fan motor stepless speed regulating device |
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| Publication Number | Publication Date |
|---|---|
| CN2814802Y true CN2814802Y (en) | 2006-09-06 |
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|---|---|---|---|
| CNU2005200604690U Expired - Fee Related CN2814802Y (en) | 2005-06-27 | 2005-06-27 | Air conditioner fan motor stepless speed regulating device |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461617C (en) * | 2006-12-18 | 2009-02-11 | 苏州三星电子有限公司 | Air conditioner AC machine driving method and circuit |
| CN101917799A (en) * | 2010-07-29 | 2010-12-15 | 广州市聚晖电子科技有限公司 | Single-fire-wire electronic switch and control method thereof |
| CN102589084A (en) * | 2012-02-17 | 2012-07-18 | 广东美的电器股份有限公司 | Stepless speed regulation method for touch strip of air conditioner controller |
| CN103036501A (en) * | 2012-12-04 | 2013-04-10 | 中山市樱雪集团有限公司 | Upper alternating current fan speed regulating system of gas water heater |
| CN103312237A (en) * | 2012-03-09 | 2013-09-18 | 珠海格力电器股份有限公司 | Starting control method and device of single-phase asynchronous motor and air conditioner |
| CN103942874A (en) * | 2014-04-10 | 2014-07-23 | 尤新革 | Money counting and money detecting machine with speed adjusted through software |
| CN104113260A (en) * | 2014-05-27 | 2014-10-22 | 邯郸美的制冷设备有限公司 | Air conditioner, AC asynchronous motor control circuit and method |
| CN104333363A (en) * | 2013-07-22 | 2015-02-04 | 广东美的环境电器制造有限公司 | Trigger circuit for bidirectional triode thyristor as well as load control circuit and fan provided with same |
| CN104505842A (en) * | 2014-12-16 | 2015-04-08 | 榆林学院 | Zero-crossing triggering circuit based on bidirectional silicon-controlled switch |
| CN105158549A (en) * | 2015-08-30 | 2015-12-16 | 成都千里电子设备有限公司 | Zero cross detection circuit with accurate detection |
| CN105914708A (en) * | 2016-06-29 | 2016-08-31 | 广东美的环境电器制造有限公司 | Net-touching shutdown protection circuit used for fan and fan equipped with same |
| CN105977913A (en) * | 2016-06-29 | 2016-09-28 | 广东美的环境电器制造有限公司 | Fan as well as screen touch shutdown protection method and protection circuit for fan |
| CN106612091A (en) * | 2015-10-19 | 2017-05-03 | 广东美的生活电器制造有限公司 | Food cooking machine and motor control device and method thereof |
| WO2018058956A1 (en) * | 2016-09-29 | 2018-04-05 | 广东美的制冷设备有限公司 | Alternating-current electric motor control method and device, and air conditioner |
| CN108981104A (en) * | 2018-08-13 | 2018-12-11 | 广东美的制冷设备有限公司 | Control method, air conditioner and the storage medium of air conditioner |
| CN109391221A (en) * | 2017-08-04 | 2019-02-26 | 广东美的生活电器制造有限公司 | Food cooking machine and its constant speed control method and device |
| CN109391207A (en) * | 2017-08-04 | 2019-02-26 | 广东美的生活电器制造有限公司 | Food cooking machine and its constant speed control method and device |
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| CN109391214A (en) * | 2017-08-04 | 2019-02-26 | 广东美的生活电器制造有限公司 | Food cooking machine and its constant speed control method and device |
| CN109391204A (en) * | 2017-08-04 | 2019-02-26 | 广东美的生活电器制造有限公司 | Food cooking machine and its constant speed control method and device |
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-
2005
- 2005-06-27 CN CNU2005200604690U patent/CN2814802Y/en not_active Expired - Fee Related
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461617C (en) * | 2006-12-18 | 2009-02-11 | 苏州三星电子有限公司 | Air conditioner AC machine driving method and circuit |
| CN101917799A (en) * | 2010-07-29 | 2010-12-15 | 广州市聚晖电子科技有限公司 | Single-fire-wire electronic switch and control method thereof |
| CN102589084A (en) * | 2012-02-17 | 2012-07-18 | 广东美的电器股份有限公司 | Stepless speed regulation method for touch strip of air conditioner controller |
| CN102589084B (en) * | 2012-02-17 | 2014-01-01 | 美的集团股份有限公司 | Stepless speed regulation method for touch strip of air conditioner controller |
| CN103312237B (en) * | 2012-03-09 | 2015-12-09 | 珠海格力电器股份有限公司 | Starting control method and device of single-phase asynchronous motor and air conditioner |
| CN103312237A (en) * | 2012-03-09 | 2013-09-18 | 珠海格力电器股份有限公司 | Starting control method and device of single-phase asynchronous motor and air conditioner |
| CN103036501A (en) * | 2012-12-04 | 2013-04-10 | 中山市樱雪集团有限公司 | Upper alternating current fan speed regulating system of gas water heater |
| CN104333363B (en) * | 2013-07-22 | 2017-08-01 | 广东美的环境电器制造有限公司 | The triggers circuit of bidirectional triode thyristor and the load control circuit with it and fan |
| CN104333363A (en) * | 2013-07-22 | 2015-02-04 | 广东美的环境电器制造有限公司 | Trigger circuit for bidirectional triode thyristor as well as load control circuit and fan provided with same |
| CN103942874A (en) * | 2014-04-10 | 2014-07-23 | 尤新革 | Money counting and money detecting machine with speed adjusted through software |
| CN104113260A (en) * | 2014-05-27 | 2014-10-22 | 邯郸美的制冷设备有限公司 | Air conditioner, AC asynchronous motor control circuit and method |
| CN104505842A (en) * | 2014-12-16 | 2015-04-08 | 榆林学院 | Zero-crossing triggering circuit based on bidirectional silicon-controlled switch |
| CN104505842B (en) * | 2014-12-16 | 2016-06-22 | 榆林学院 | Zero-cross triggering circuit based on bidirectional triode thyristor |
| CN105158549A (en) * | 2015-08-30 | 2015-12-16 | 成都千里电子设备有限公司 | Zero cross detection circuit with accurate detection |
| CN106612091A (en) * | 2015-10-19 | 2017-05-03 | 广东美的生活电器制造有限公司 | Food cooking machine and motor control device and method thereof |
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| CN105914708B (en) * | 2016-06-29 | 2019-08-27 | 广东美的环境电器制造有限公司 | For the net-fault stoppage protection circuit of fan and with its fan |
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| WO2018058956A1 (en) * | 2016-09-29 | 2018-04-05 | 广东美的制冷设备有限公司 | Alternating-current electric motor control method and device, and air conditioner |
| CN109391221A (en) * | 2017-08-04 | 2019-02-26 | 广东美的生活电器制造有限公司 | Food cooking machine and its constant speed control method and device |
| CN109391213A (en) * | 2017-08-04 | 2019-02-26 | 广东美的生活电器制造有限公司 | Food cooking machine and its constant speed control method and device |
| CN109391214A (en) * | 2017-08-04 | 2019-02-26 | 广东美的生活电器制造有限公司 | Food cooking machine and its constant speed control method and device |
| CN109391204A (en) * | 2017-08-04 | 2019-02-26 | 广东美的生活电器制造有限公司 | Food cooking machine and its constant speed control method and device |
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| CN108981104A (en) * | 2018-08-13 | 2018-12-11 | 广东美的制冷设备有限公司 | Control method, air conditioner and the storage medium of air conditioner |
| CN108981104B (en) * | 2018-08-13 | 2020-09-11 | 广东美的制冷设备有限公司 | Control method of air conditioner, air conditioner and storage medium |
| CN112886872A (en) * | 2019-11-29 | 2021-06-01 | 广东美的生活电器制造有限公司 | Control method and device for driving motor, food processor and storage medium |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060906 |