CN109306971A - Intelligent-induction automatic control electric fan - Google Patents

Intelligent-induction automatic control electric fan Download PDF

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Publication number
CN109306971A
CN109306971A CN201811006893.5A CN201811006893A CN109306971A CN 109306971 A CN109306971 A CN 109306971A CN 201811006893 A CN201811006893 A CN 201811006893A CN 109306971 A CN109306971 A CN 109306971A
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fan
motor
intelligent
function
human body
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覃坚
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Individual
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/004Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/008Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Intelligent-induction automatic control electric fan of the present invention is to realize that the start-up capacitance volume-variable mode of voltage adjusting and actuating coil to motor operating coils is combined by control circuit with scm software programming technique to implement the speed regulation of multi gear position.Smart key is set on fan, under intelligent work mode using the temperature sensor being mounted on fan automatically adjust depending on changes in ambient temperature wind speed and fortune stop, different reference ambient temperatures is set in software and is selected for user according to itself comfort level, realizes man-machine communication;Function is stopped by the fortune that the signal that special device detects user's disengaging automatically and whether also rests on use site range automatically controls fan motor using the pyroelectric human body infrared line sensor being mounted on fan.Natural wind simulating, sleeping wind, electronic timer and air blowing function of shaking the head are realized in control circuit, each function can or remote control operation manual by control panel.

Description

Intelligent-induction automatic control electric fan
Technical field
Intelligent-induction automatic control electric fan of the present invention can make single-phase AC motor by electronic control circuit It realizes that revolving speed numbers of gear steps is not limited by electrical-coil winding intermediate connection number of taps, simplifies the production technology of motor;In electricity Fan can be according to the wind-force size and wind of the automatic adjustment electric fan of variation of ambient temperature when using after entering intelligent work mode Fan the switch of motor operating;The ring that user can be shut down by sets itself fan motor under the work of intelligent work mode Border temperature (reference ambient temperature) reaches optimal human comfort;Make under the work of intelligent work mode when user enters Start operating automatically with live range rear fan motor, and whether there are also users within the scope of use site for energy Auto-Sensing, It can be automatically stopped motor operating after user all leaves use site range and reach energy saving;Exit intelligent work mode After can use fan by function button according to common remote control and manually.
Background technique
The present invention uses singlechip chip (MCU) programming software technology, passes through the control circuit board being mounted on electric fan The running speed multi gear bit quantity stepping for controlling Fan Machine, which is realized, adjusts the running speed of motor, breaches traditional Electric fan operating revolving speed numbers of gear steps is limited by Fan Machine coil windings wiring tap quantity, simplifies fan friendship The production technology of galvanic electricity machine, and using the variable capacitance technology of software control start-up capacitance, temperature when can reduce motor low speed It rises too high, passes through control circuit board depending on changes in ambient temperature using the temperature sensor being mounted on electric fan and go to control The height of the motor speed of electric fan drives fan blade to reach the fortune of the size of control wind-force and motor and stop function, using being mounted on Pyroelectric human body infrared line sensor on fan by special device detect automatically user whether also or leave use The fortune of live automatic control motor stops function, so that control electric fan is entered sleeping wind and simulation by requirement using software systems Natural wind and timing controlled shut-off function, various functions setting can be sent out by control panel function button on electric fan or remote control The setting of emitter function button.
Summary of the invention
When traditional electric fan load motor revolving speed numbers of gear steps is by motor production in operating coils winding Between number of taps limit, intelligent-induction automatic control electric fan of the invention passes through electronic control electricity using software programming technique Road can make the revolving speed gear of electric fan load motor setting more multi-quantity also simplify the production of load motor Technique, and using the variable capacitance technology of software control start-up capacitance, so that the wind speed of output is more smooth, body-sensing is more relaxed Clothes.Intelligent-induction automatic control electric fan of the invention utilizes scm software programming technique, and temperature is installed on electric fan and is passed Sensor and pyroelectric human body infrared line sensor and control circuit board, the data that each sensor detects are transferred in chip, Smart key is set in the shell control panel and remote control transmitter control panel of fan, implementation enters intelligence after pressing smart key Energy operating mode, under intelligent work mode, when use environment temperature value is higher than the reference ambient temperature value built in system software When automatic control motor start, output power with ambient temperature value change automatically adjust, be when use environment temperature value drops to Motor operating is automatically stopped when built-in reference ambient temperature value of uniting, which can also be according to of user People's comfort level self-setting is all that benchmark opens although also there is the electric fan for varying with temperature and carrying out automatic controlled wind speed at this stage Dynamic temperature valve system has been fixedly installed, and user is cannot to require that sets itself individual is gone to relax according to the body-sensing of oneself Appropriateness, the present invention may be implemented this function, and can carry out easy human-machine intelligence with electric fan and exchange, and allow electric fan can be by The requirement of setting base environment temperature is required to go to run according to the comfort level of oneself.Intelligent-induction automatic control electric fan of the invention exists It is mounted with pyroelectric human body infrared line sensor on fan, and is mounted with specific device, electric fan can detecte user Into or stop and leave and be automatically turned off the operating of fan motor in use site range, such as three people that come in are intermediate It stays one to have gone out after the meeting two people, when surplus the next man still operates, and is just automatically stopped operating when last people has left.Such as It then operates, presses on the control panel or remote controler of fan according to common remote control electric fan without using intelligent work mode electric fan Intelligent function key other than function button (wind speed function button or wind class function button and timing function key) can exit Intelligent work mode, software systems setting, which is shaken the head, puts air blowing function in intelligent mode and common remote control mode manually by function Keystroke pattern, which can be independently operated, when pressing shut-off function key system, closes motor and shuts down digital screen then display environment temperature Degree enters standby mode, and the digital display screen in use process on control panel can alternately display environment temperature reading and fan turns Fast gear reading, timing is such as also alternately displayed using timing function and is read, and the alternate intervals time is arranged in software in system It is set as 30 seconds according to actual operation requirements.The following are the specific technical solution of the present invention:
The first, multiple revolving speed gear setting methods of intelligent-induction automatic control electric fan motor:
It is usually an actuating coil winding and an operating coils winding that traditional fan load motor, which is using structure, Multiple tap wiring are picked out in coil windings and are carried out divides the speed regulation of revolving speed gear, general only point high, normal, basic three gears, this hair The structure for the load motor that bright intelligent-induction automatic control electric fan uses is only one actuating coil winding and one The motor of a operating coils winding, coil windings do not have to pick out centre tap stepping wiring again, program skill with scm software Art outputs signals to bidirectional triode thyristor difference synchronously control actuating coil winding and operating with chip (MCU) in control circuit Coil windings switching function, and the detection of AC sine electric wave phase zero cross signal, the friendship that will test are set up in control circuit Galvanic electricity phase zero cross signal is transferred in chip (MCU), and in conjunction with the cyclophysis of sinusoidal ac electric current, frequency China is used It is 50 hertz, voltage is 220 volts, and period of an alternating current is 360 degree, and positive half cycle is 180 degree, negative half period 180 degree, controllably Silicon is also known as controlled rectification element, is divided into one-way SCR and bidirectional triode thyristor, unidirectional controllable when alternating current passes through one-way SCR Silicon allows positive 180 degree electricity to pass through, and prevents passing through for negative 180 degree, i.e. halfwave rectifier, when alternating current passes through one-way SCR, not It is that the positive half cycle electricity of 180 degree is allowed all to pass through, i.e., so-called controlled rectification, when positive half cycle is added to silicon-controlled anode, in 180 degree A certain angle when, silicon-controlled control electrode (being also trigger electrode) plus one conducting start pulse signal, such as 30 degree add one Start pulse signal is connected, it is silicon-controlled to be claimed by remaining 150 degree of voltage, this start angle for making silicon-controlled conduction For the angle of flow, half cycle can only be connected in one-way SCR, and bidirectional triode thyristor is that positive half cycle and negative half period can be connected, conducting The voltage of the smaller output in angle is higher, is detected by singlechip chip (MCU) defeated again after the phase zero cross signal in each period The control electrode of trigger signal to bidirectional triode thyristor begins to turn on it at the unspecified angle of 0-180 degree out, two-way by calculating The parameter is simultaneously programmed into software by the variation for the voltage levels that thyristor operating angle changing value exports motor operating coils winding In program, chip (MCU) outputs signals to the control electrode of bidirectional triode thyristor again according to software program sets requirement to individually adjust It is connected on the size of the bidirectional triode thyristor angle of flow of operating coils winding and reaches tune to change the wave amplitude size of alternating current sine wave The operating voltage of whole motor operating coils winding is realized the adjusting to motor running speed (i.e. chopping regulating speed principle), traditional Bidirectional triode thyristor chopping regulating speed is that actuating coil winding and operating coils winding carry out chopping regulating speed together, to the electricity of electric current Feel (harmonic wave) interference and motor body vibration it is bigger, and the present invention due to only using bidirectional triode thyristor individually to pass through fortune Switch coil winding alternating current sine wave carries out chopper regulation, and the alternating current sine wave of actuating coil winding is unaffected, still Complete sine wave, so the body vibration of inductance (harmonic wave) interference and motor that electric current is subject to can be reduced.The each gear of motor Between rotary speed difference by the maximum (top) speed of the motor subtract software systems setting minimum operating speed difference divided by system Set numbers of gear steps, chip signal output goes adjustment to operate after the revolving speed of each gear can be calculated by software program The angle of flow of the bidirectional triode thyristor of coil windings is set, such as 1500 revs/min of maximum (top) speed when empty load of motor, when setting is empty 600 revs/min of minimum speed when load, the angle of flow of bidirectional triode thyristor should be 108 degree, and revolving speed numbers of gear steps is set as 12 Position, each gear rotational speed difference are exactly 75 revs/min, and the 1st grade is 600 revs/min of minimum speed, and the 2nd grade of revolving speed is 675 revs/min Clock, corresponding thyristor operating angle should be 99 degree, and third gear revolving speed is 750 revs/min, the corresponding bidirectional triode thyristor angle of flow It should be 90 degree, the 12nd 1500 revs/min of gear maximum speed, the corresponding bidirectional triode thyristor angle of flow is 0 degree in full conducting State is 100 revs/min if each gear rotational speed difference of 9 gears is arranged in revolving speed numbers of gear steps, and the 1st grade is minimum speed 600 revs/min of corresponding bidirectional triode thyristor angles of flow are 108 degree, and the 2nd grade of revolving speed is 700 revs/min, corresponding two-way controllable The silicon angle of flow should be 96 degree, and third gear revolving speed is 800 revs/min, and the corresponding bidirectional triode thyristor angle of flow should be 84 degree, the 9 1500 revs/min of gear maximum speeds, the corresponding bidirectional triode thyristor angle of flow should be in fully conducting state for 0 degree, other set The revolving speed of fixed numbers of gear steps and each gear is so analogized.In addition traditional thyristor speed control is due in actuating coil winding The capacity of start-up capacitance be it is constant, also not changed always by actuating coil winding current, when slow-speed of revolution, is easy to draw Electrizer organism temperature rises too high, and to solve this disadvantage, the present utility model uses capacitance in control circuit The start-up capacitance of motor is divided into two different capacitors of amount of capacity and is together in parallel use by variable technique, the summation of capacity The respective capability value of the rated capacity value of start-up capacitance when being exactly design of electrical motor, two start-up capacitances will be by repeatedly surveying Examination is selected and is used alone by software chip output signal by the two bidirectional triode thyristors control for capacitor of connecting respectively or simultaneously Connection uses, and bidirectional triode thyristor is equivalent to the switching function of a full conducting control herein, makes when revolving speed is in the lower stage With the lesser start-up capacitance of capacitance, the biggish start-up capacitance of capacitance is used when revolving speed is in middle section, when revolving speed exists Two capacitors are used in parallel when higher stage, the intelligent-induction automatic control electric fan circuit theory that connection type is seen below Figure, for example, motor start-up capacitance Capacity design when be 2UF, that just selects one capacity for 0.8UF and 1.2UF starting Capacitor, gear are set as 12, and software is connected entirely by control circuit synchronization output signal and is connected on capacitance in 1-4 grades The bidirectional triode thyristor of lesser start-up capacitance (0.8UF) reaches using the lesser start-up capacitance of capacitance, the software in 5-8 grades The bidirectional triode thyristor for being connected on the biggish start-up capacitance of capacitance (1.2UF) is connected entirely by control circuit synchronization output signal Reach using the biggish start-up capacitance of capacitance, software is led entirely simultaneously by control circuit synchronization output signal in 9-12 grades Two bidirectional triode thyristors of the logical start-up capacitance for being connected on two capacity while the start-up capacitance for using two capacity, using other The capability value of start-up capacitance is so analogized.To keep electric motor starting smooth, the starting revolving speed of software set motor should turn in middle section On fast gear (such as be arranged altogether 12 revolving speed shelves starting revolving speed gear can be set in the 7th grade), return within 3 seconds after starting The revolving speed gear that system or user select, avoiding low speed difficulty in starting and crossing high-speed starting impact influences.Above-mentioned setting With the use of can effectively reduce in speed regulation process by actual test to the interference of the inductance (harmonic wave) of alternating current generator and Body vibration, also reduces the temperature ascensional range of motor body, allows motor also can be normal in relatively low revolving speed Operating.After motor is mounted with fan blade load actual speed and rotational speed difference can correspondingly decline, but not have an impact to function, The minimum speed of motor should make suitable setting according to the watt level of motor and the size of load, in actual use The result tested after being worked according to motor load removes the rotational speed difference of setting minimum speed and each gear, revolving speed numbers of gear steps It may be set to arbitrary value quantity in practical application, according to the environment temperature model in actual temperature change numerical intervals and real life Enclosing requirement selects 6 to 30 revolving speed gears can be with the setting of difference variation value hour numbers of gear steps is more, and temperature difference changes greatly When numbers of gear steps setting it is few, come out can be relatively more smooth for the wind of fan when revolving speed numbers of gear steps is arranged more.This method It can be applied to other similar electric machine speed regulation scheme, adjusted the speed compared with frequency control using the load motor of the technology Compared with simple with controling circuit structure, cost is relatively low, can get lower motor speed, the reliable advantage of electric property, exchange Motor only needs directly to come out operating coils and the difference wiring of actuating coil lead in process of production, i.e., one public Wiring, an operating coils connecting line, totally 3 connecting lines, two start-up capacitances are mounted on control to an actuating coil connecting line On wiring board, intermediate stepping is that tap wiring need not.Attached drawing 1 and attached drawing 2 in Figure of description be by it is two-way can The control silicon angle of flow adjust the ac power waveform schematic diagram of voltage.
The second, intelligent-induction automatic control electric fan with variation of ambient temperature automatic control motor revolving speed and shuts down method and use Person is according to itself comfort level setting method:
This intelligent-induction automatic control electric fan is by electronic control board, using software programming technique, in intelligent mode work Under work, when the temperature sensor installed in electric fan detects that use environment temperature is higher or lower than the base being arranged in software systems It can be stopped when quasi- temperature with the height and fortune of automatic control motor revolving speed.Scheme is that motor shuts down reference ambient temperature in software Be set as in program N degree Celsius (in the temperature range system by real life apply in may be configured as it is 22 degree Celsius, Celsius 23 Degree, it is 24 degree Celsius, 25 degree Celsius, 26 degree Celsius totally 5 temperature values real life can be suitble to require substantially), intelligent mode System default is set as 22 degree Celsius after starting, and user, which is powered, to be switched on and can enter intelligent work mode by pressing intelligent key Afterwards in 3 seconds again quickly by intelligent key (each residence time no more than 1 second) by be suitble to oneself body-sensing temperature waiting this After reading flashing three times can temperature needed for sets itself (it is to recycle to flash from low to high that 22 degree Celsius to 26 degree Celsius, which read, ) the easy man-machine communication of realization, when environment temperature N degrees Celsius of changing value of every rising, motor speed is just after starting fan operating Increase a gear, which may be set to 0.5 degree Celsius, 1 degree Celsius, 2 degrees Celsius, 3 degrees Celsius, the temperature The quantity of motor speed gear should be arranged by software set in changing value according to software, generally take in real life application 0.5 degree Celsius or 1 degree Celsius of changing value is become with setting motor and shutting down 24 degree Celsius of reference ambient temperature with environment temperature Change value is that 1 degree Celsius and system are set as 12 revolving speed gears, is made when the temperature sensor installed in electric fan detects When with environment, higher than 24 degree Celsius, i.e. numeral method environment temperature is 25 degree Celsius, fan motor is in selected intelligent work mould Enter the 1st revolving speed shelves after Auto Power On starting under formula to operate, as the change system of environment temperature can automatically adjust the defeated of motor Power out, when environment temperature rises to 27 degree Celsius, fan motor rotational speed gear correspondingly rises to the 3rd grade, and temperature, which rises to, to be taken the photograph It is the 12nd grade of maximum speed shelves when being then the 8th grade, 36 degree Celsius at 32 degree of family name, the meeting when use environment falls back to 33 degree Celsius Fan motor rotational speed drops to the 9th grade automatically, then presses most high-grade operating when use environment temperature is more than 36 degrees Celsius, works as environment Fan motor is then automatically stopped operating and saves electric energy when temperature backs to or below 24 degree Celsius, when use environment temperature rises again Motor is again started up operating when to 25 degree Celsius, the reference ambient temperature of other settings and the relationship of numbers of gear steps and temperature change So analogize.System detection can be had modified due to being provided with when 5 reference ambient temperature values are voluntarily selected for user in system The error of the temperature and actual environment temperature that arrive, also meets the comfort level requirement of different users, and reference ambient temperature is set Fan output wind-force is more soft when being set to higher temperature, and fan output wind-force is more strong when reference ambient temperature setting is lower Strength, user can voluntarily select the reference ambient temperature for being suitble to oneself to require, electric wind according to the practical body-sensing comfort level of oneself Fan can be provided with 5 reference ambient temperature ranges according to user's setting requirements automatic running, in software systems substantially can be with The requirement for meeting daily life is operated after environment temperature increases above highest wind velocity when setting by highest wind velocity gear, should Wind speed key adjustment speed and switch key can be used to switch fan after exiting intelligent work mode for function electric fan.The following are Variation example between environment temperature and gear: such as software set variation of ambient temperature value is 1 degree Celsius, fan motor rotational speed Gear number amount is 12, and user voluntarily selects to set motor stopping environment temperature as 23 degree Celsius, and each temperature value changes and gear Relationship is as follows between variation:
Temperature 23 24 25 26 27 28 29 30 31 32 33 34 35 36
Gear Stop 1 2 3 4 5 6 7 8 9 10 11 12 12
Environment temperature shuts down Celsius 23 or less into standby mode, and 24 degree of startings Celsius, 36 degree Celsius or more are pressed highest Rotation speed operation.Such as software set variation of ambient temperature value is 1 degree Celsius, fan motor rotational speed gear number amount is 9, and user is certainly Row selects to set motor stopping environment temperature as 24 degree Celsius, and relationship is as follows between each temperature value variation and gear change:
Temperature 23 24 25 26 27 28 29 30 31 32 33 34 35 36
Gear Stop Stop 1 2 3 4 5 6 7 8 9 9 9 9
Environment temperature shuts down Celsius 24 or less into standby mode, and 25 degree of startings Celsius, 33 degree Celsius or more are pressed highest Rotation speed operation.Such as software set variation of ambient temperature value is 0.5 degree Celsius, fan motor rotational speed gear number amount is 18, is used Person voluntarily selects to set motor stopping environment temperature as 23 degree Celsius, and relationship is as follows between each temperature value variation and gear change:
Temperature 23 23.5 24 24.5 25 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30 30.5 31 31.5 32 32.5
Gear Stop 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 18
Environment temperature shuts down Celsius 23 or less into standby mode, 23.5 degree of startings Celsius, more than 32 degrees celsius by most High rotation speed operation.
Whether third, intelligent-induction automatic control electric fan detection user are in the side that use site automatic control motor is shut down Method:
Pyroelectric human body infrared line sensor and Fresnel Lenses are installed on electric fan to detect the human body infrared of user Detect static or mobile human body infrared signal are simultaneously passed through software technology and relevant by particularly setting by signal What control circuit can realize automatic control electric fan motor shuts down function.Detecting human body infrared sensor at present mainly has heat Release electric human infrared sensor, thermopile infrared sensor and array infrared sensor, each have their own advantage and disadvantage, Middle array infrared sensor precision is high and accurate, is mainly used for thermal imaging and expensive, circuit complexity, thermoelectricity Heap infrared sensor is mainly used for non-contact type temperature test, but is used to take the photograph when human body infrared detecting vulnerable to close to human body temperature 37 degree of family name or so of ambient temperature effect causes to report by mistake, and pyroelectric human body infrared line sensor can only detect mobile human body, Just as the light or alarm switch of the human body infrared line traffic control on doorway or channel, just there is signal when only human motion passes in and out Output.Pyroelectric human body infrared line sensor be by a kind of material of high Seebeck coefficient, as lead zirconate titanate system ceramics, lithium tantalate, The detecting element having a size of 2*1mm is made in triglycine sulfate etc..One or two detecting element is packed into each detector, and By two detecting elements with opposite polarities in series, to inhibit due to the interference that own temperature increases and generates.It will be visited by detecting element It surveys and the infra-red radiation received is transformed into faint voltage signal, it is defeated outward after the field-effect tube amplification in probe Out.In order to improve the detectivity of detector to increase detection range, a Fresnel generally is installed in the front of detector Lens, the lens are made of transparent plastic, and upper and lower two parts of lens are respectively divided into several equal portions, are made a kind of with special The lens of optical system, it and amplifying circuit match, and signal can be amplified 70 decibels or more, can thus measure certain model Enclose the action of interior people.Fresnel Lenses utilizes the special optical principle of lens, and side generates an alternating variation before the detectors " Blind area " and " highly sensitive area ", to improve its detection receiving sensitivity.When someone walked before lens it is out-of-date, human body issue it is red Outside line just constantly alternately from " blind area " entrance " highly sensitive area ", thus makes the infrared signal received with dynamic arteries and veins Form input is rushed, thus its strong energy amplitude.The infrared ray central wavelength of human body radiation is 9 ~ 10--um, and the wave of detecting element Long sensitivity is almost stablized constant within the scope of 0.2 ~ 20--um.The window that filter glass is housed has been opened up in transducer tip Mouthful, this optical filter can be 7 ~ 10--um by the wave-length coverage of light, quite well to the detection of human infrared radiation, and to it The infrared ray of its wavelength is absorbed by optical filter, just forms a kind of infrared ray biography for being dedicated as detection human body radiation in this way Sensor.It is the technology of a comparative maturity with pyroelectric human body infrared line sensor detecting human body signal, but pyroelectric human body is red Outside line sensor the disadvantage is that mobile human body infrared signal can only be detected, such as human body when static or enters to be a few individuals, Having come out a people then can not detect whether that somebody within the scope of use site, is mounted with pyroelectric human body on electric fan Infrared sensor also can be most unwise to moving radially there is this problem, pyroelectric human body infrared line sensor characteristics Sense, it is most sensitive to transverse direction (i.e. the vertical direction of radius such as left and right directions or up and down direction) movement, it is asked to solve this Topic, the present invention is opposite principle using movement, that is, when human motion and static Thermoelectric Infrared Sensor between be Mobile relationship, pyroelectric sensor it is mobile with human body when static between be also mobile relationship, (be not limited to electric wind in fan Fan, can also using pyroelectric human body infrared line sensor detecting in other needs, whether there are also human bodies to believe in a certain range Number product) on one device of setting using can enable pyroelectric human body infrared line sensor left under magnetic field or mechanism The device moved under right or up then can solve this problem, i.e., a mountable equipment mechanism enables pyroelectric human body in fan Infrared sensor moves left and right or moves up and down the continuity to keep detecting as pendulum model, can release heat in practical application Electric human infrared sensor welding is mounted on a fritter PCB route to be connected with soft connecting line and main control PCB circuit board It connects, open a small sircle hole in the small pcb board upper end for being welded with sensor and packs into axle sleeve, which, which is mounted on fan, is It enables to control to it on the axis of suitable reserved location and moves freely about 15-30 degree angle, be provided again in PCB circuit board Be suitble to the installation spacing slotted eye of its hunting range prevent from using and transport in sensor line plate fall off, the lower section of small pcb board exists One piece of iron plate is respectively installed on the left side and the right, and an electromagnetic coil is respectively arranged on the fuselage beside iron plate, can also be by electromagnetic wire In the circuit board, iron plate is fixedly mounted in circle installation on the fuselage beside electromagnetic coil, specifically should be according to outer with a kind of that mode Shell structure is chosen, and can freely do the relative movement of certain amplitude between iron plate and electromagnetic coil, electromagnetic coil parameter and its with Position and distance between iron plate are set after wanting actual test, make the small pcb board for being equipped with pyroelectric human body infrared line sensor Can freely swing, after user enters use site range, due to human body be it is mobile, sensor detect human body signal electricity Machine automatic operating, setting detects after human body infrared signal that motor will persistently be delayed and runs work 30 to 60 seconds in software Left and right (continuous working period setting cannot it is too short can not be too long, the time, too short pyroelectric human body infrared line sensor moved It acts frequently, the time is too long to be also not achieved energy-efficient purpose, can be set as a certain fixed value, such as 60 in software systems Second) to keep continuity between next human body infrared signal detected, after 30 to 60 seconds system detection less than Control circuit is automatically stopped fan motor runs after human body signal, and software program when fan motor runs in chip is often separated by one (period will set the time software system less than motor continuous running after system detection to human body signal in a 30 to 60 seconds periods Can be set as a certain fixed value, such as 55 seconds in system) just output signals to control circuit give solenoid ON direct current produce Magnetisation power can drive the pcb board for being equipped with pyroelectric human body infrared line sensor to be moved to the left or right, when user is In use site stationary state or little mobile range or several people midway someone that come in leave but somebody is in use site, only Pyroelectric human body infrared line sensor is wanted constantly to make transverse direction movement and can constantly detect whether have user to make With in live range, for example, software set user enter after use site range setting in software detect it is human body infrared Motor will persistently be delayed and run work 60 seconds after signal, run to the 55th second (the time outline is less than delay runing time) When software systems issue command signal by control element control the left side solenoid ON direct current generation magnetic force, by pyroelectricity Human infrared sensor is mobile toward the left side by the absorption of magnetic force, adsorbs 55 seconds software systems and issues command signal disconnection The electric current of left side electromagnetic coil simultaneously controls the right solenoid ON direct current generation magnetic force for pyroelectricity people by control element Body infrared sensor is mobile toward the right by the absorption of magnetic force, and it is disconnected to issue command signal again for software systems after adsorbing 55 seconds The electric current for opening the right electromagnetic coil controls left side solenoid ON direct current by control element again and generates magnetic force, by pyroelectricity Human infrared sensor is mobile toward the left side by the absorption of magnetic force, constantly makes pyroelectric human body infrared line again and again in this way Sensor moves left and right, and pyroelectric human body infrared line sensor can't detect after user all leaves use site range Human body infrared signal 60 seconds (runs work because setting in software detects after human body infrared signal that motor will persistently be delayed 60 seconds) system automatic control stopping motor operating afterwards, motor is again started up fortune after having user to return to live range Turn.This intelligent-induction automatic control electric fan is exactly to be released after electric fan enters intelligent work mode by heat using this principle The characteristic detecting of electric human infrared sensor and Fresnel Lenses to user enter and leave within the scope of use site Signal and can automatic identification user whether there are also user monolithic is conveyed by control circuit within the scope of use site In machine core piece (MCU), software chip output signal stops function by the fortune of control circuit automatic control motor, and pyroelectric human body is red Outside line sensor cooperates Fresnel Lenses to have 6-10 meters or more using general detecting distance at present, and detecting angle is greater than 120 Du or more can achieve daily use requirement, the transducer sensitivity of selection more high scope is just bigger, which can be Electric fan is then by remote control fan mode operation after exiting intelligent work mode.
4th, the natural wind simulating of intelligent-induction automatic control electric fan, sleeping wind and electronic timer and air blowing function of shaking the head Setting method:
Intelligent-induction automatic control electric fan of the present invention passes through circuit using software programming technique by electronic control board Power supply power supply component provide power supply to single-chip microcomputer integrated circuit and other electronic components, single-chip microcontroller outputs signal to executive component Bidirectional triode thyristor goes driving fan motor to drive fan blade operating, exports a cycle to power of motor by single-chip microcontroller output signal Interior (generally 10 seconds) progressively increase to maximum and reduction minimum power to drive fan blade operating simulation nature to blow over Fitful wind, sleeping wind then pass through single-chip microcontroller output signal control motor (generally set in selected high revolving speed shelves in each period It is set to 30 minutes) gear that subtracts one is until drop to system minimum speed gear wind speed downwards, system when such as having selected minimum speed shelves System can automatic identification no longer successively decrease gear, in order to avoid user's sleep is suffered from cold, normal wind is exactly motor according to normally having selected revolving speed The gustiness of gear operation, normal wind sleeping wind and natural wind can be pressed by the wind class in shell or remote control control panel Key conversion.Timer setting then utilizes the clock software technology built in single-chip microcontroller, using accumulated counts, in control panel key or The remote controller key 30 minutes longest timings that often just add up by the primary function button are set as 8 hours, when the fan 33 is operated Between motor operating is automatically stopped when reaching setting time value, the work shape of above-mentioned function can be shown by LED light or digital tube panel State realizes wind direction oscillating function, oscillating function additionally by the synchronization decelerating motor that control circuit goes control to be mounted on motor It can independently be used in intelligent mode and general mode.
5th, intelligent-induction automatic control electric fan distant control function setting method:
Intelligent-induction automatic control electric fan of the present invention automatically operates under intelligent work mode, exits intelligent work mould It can work by remote control mode after formula.Electric fan remote control function is a kind of mature technology for having used many years, this intelligence Induction automatic control electric fan is that increase intelligent temperature induction control function and human body are red on the basis of its original remote control Fan fortune can be arranged by itself comfort level requirement and stop function by outside line intelligent-induction control function, user, can also make fan shelves Bit quantity is no longer influenced by motor production technology limitation, it can be achieved that more gear speed regulation.It is installed in the electronic control circuit of fan Infrared remote-receiver, the signal that RF transmitter is issued, which is received, realizes remote control by the decoding of scm software system Function, the interior setting software programming emitter chip of transmitter and infrared emission tube LED and control circuit board and dry cell power supply Circuit, the signal that chip exports when pressing each function button on remote control control panel are transmitted by infrared LEDs transmitting tube Infrared receiving terminal to fan control circuit plate is received after head reception signal is transmitted to chip decoding and is output signals to again respectively Electronic component is executed to implement distant control function.
It 6th, is circuit diagram and PCB circuit board and function button layout the following are intelligent-induction automatic control electric fan Illustrate and electronic component model and parameter.Attached drawing 3 is intelligent-induction automatic control electric fan remote-transmitter in Figure of description Device circuit diagram, attached drawing 4 are intelligent-induction automatic control electric fan remote control transmitter PCB circuit board figure, and attached drawing 5 is intelligence sense The circuit diagram of automatic control electric fan control circuit board is answered, attached drawing 6 is that the intelligent-induction of practical application automatically controls electric wind The control circuit board pcb board backplane circuit figure of fan, attached drawing 7 are that the function of intelligent-induction automatic control electric fan remote control transmitter is shown It is intended to, attached drawing 8 is to show before the shell control panel function and structure of intelligent-induction automatic control electric fan in practical applications It is intended to, attached drawing 9 is that intelligent-induction automatic control electric fan shell control panel function in practical applications and structured rear surface show It is intended to.It is below intelligent-induction automatic control electric fan control circuit board electronic component model and parameter.
Resistance class:
R1 1/2W200K fixed carbon resister, the Europe R2 1/2W10 fixed carbon resister, R3 1/4W4.7K fixed carbon resister, R4 1/4W10K Fixed carbon resister, R5 1/4W10K fixed carbon resister, the positive and negative percentage of temperature sensor precision that 3950 type resistance value of R6 specification is 10K One of, R7 1/4W 1M fixed carbon resister, the Europe R8 1/4W330 fixed carbon resister, the Europe R9 1/4W330 fixed carbon resister, R10 1/ The Europe 4W330 fixed carbon resister, the Europe R11 1/4W330 fixed carbon resister, the Europe R12 1/4W680 carbon film, the Europe R13 1/4W680 carbon film Electricity, the Europe R14 1/4W680 fixed carbon resister, the Europe R15 1/4W680 fixed carbon resister, the Europe R16 1/4W680 fixed carbon resister, R17 1/ The Europe 4W680 fixed carbon resister
Capacitance kind:
C1 104/275VAC safety electricity, C2 155U/400V ac capacitor, C3 470UF/25V electrolytic capacitor, C4 104/ 50V ceramic disc capacitor, 5 16V/470UF electrolytic capacitor of C, C6 104/50V ceramic disc capacitor, C7 1UF/16V electrolytic capacitor, C8 100UF/16V electrolytic capacitor, C9 824UF/400V electric motor starting capacitor, C10 125UF/400V electric motor starting capacitor, C11 6.8UF/400V electrolytic capacitor, C12 6.8UF/400V electrolytic capacitor
Diode-like:
D1 1N4007 rectifier diode, D2 1N4007 rectifier diode, D3 IN4733 zener diode 1W5.1V, D4 1N4007 rectifier diode, D5 1N4007 rectifier diode, D6 1N4007 rectifier diode, D7 1N4007 rectification two Pole pipe, D8 1N4007 rectifier diode, D9 1N4007 rectifier diode, D10 1N4007 rectifier diode, D11 1N4007 rectifier diode, 5 millimeters of red LEDs of D12 diameter, 5 millimeters of red LEDs of D13 diameter, 5 millimeters of D14 diameter 5 millimeters of red LED, 5 millimeters of red LEDs of D15 diameter, 5 millimeters of green LEDs of D16 diameter, D17 diameter yellow leds
Silicon-controlled class:
Q1, Q2, Q3, Q4, Q5, Q6 can select model BT131 or 97A8 bidirectional triode thyristor, and 1A amperes of operating current resistance to Press 600 volts or more, 10 milliamperes of trigger current or less
Other electronic components:
IC integrated circuit selects the chip of 28 foot high stabilities, and encapsulation specification is patch SOP-28, as control panel requires as pressure The model C MS89F2285 chip that middle micro semiconductor can be selected of power formula touch-switch design enters burning program, such as controls Panel requirement processed is that the optional model CMS89F6285 chip of touch sensible button design enters burning program
REV is identified as 38K infrared receiver module, model HL1838
DIG1 DIG2 DIG3 is identified as 0.5 inch of common cathode, 3 LED digital display screens
F is identified as 2A/250V specification protective tube
L 1 is identified as 6.8mH inductance coil, and L2 is that 1 L3 of electromagnetic coil is electromagnetic coil 2 for generating magnetic force moving pyroelectricity Sensor is mobile, and design parameter is determined by actual test
TP1 and TP2 is the small iron plate being mounted on small pcb board, and design parameter is determined by actual test
JP1 and JP2 electromagnetic coil connecting line, JP3 are pyroelectric human body infrared line sensor connecting line
K1, K2, K3, K4, K5, K6 are 6*6*8 touch-switch
RSD is pyroelectric human body infrared line sensor, the D205B model of such as gloomy despot's photoelectricity, and configures Fresnel Lenses eyeglass
J1, J2, J3, J4 are identified as connection cross-line or 0 Ohmic resistance
Intelligent-induction automatic control electric fan remote control transmitter control circuit board electronic component is as follows: K1, K2, K3, K4, K5, K6: 6*6*5 touch-switch or conductive rubber switch and thin film switch, IC are dedicated remote-transmitter chip such as model SC5104 , the infrared LEDs that infrared transmitting tube is 3 millimeters or 5 millimeters of diameter emit two poles, and " ten, one " is that power-supply battery connects pole.
It is set as six multiple functional function buttons of console mode in practical application according to demand, is set in control panel function button Switch key, smart key, wind speed key, regularly button, shake the head key and wind class key have been set, pyroelectric human body infrared is pushed The electromagnetic coil of line sensor is mounted on the left and right sides, pushes its right and left to swing in turn using electromagnetic field to detect human body letter Number).It can also be arranged according to different shape shells and style (such as wall-hanging, desk-top, wind pillar, ceiling mounting type etc.) in practical application Four function buttons (on & off switch, intelligent key, wind speed key and key of shaking the head) and five function button (on & off switch, intelligent key, wind Fast key and wind generic key, shake the head key or timing key) specifically need to select according to exact shape shell and function style.
7th, it summarizes:
Electric fan is a kind of common household electrical appliance in daily life, is broadly divided into console mode, wall-hanging, seat-stand type and ceiling mounting type Etc. several types, basic structure is main by fan blade, motor, control switch or control circuit board, electric power connection line and fuselage cover etc. Component is wanted to form, if the electric fan of console mode is mainly by pedestal, column is equipped with mechanical keyswitch and timer or electronics control Fuselage cover, power supply line, wind page, mesh enclosure, motor and the head-shaking device (such as synchronous motor or reduction gear box) of circuit board processed Composition has been assembled into semi-finished product when production is dispatched from the factory for the ease of transport, and common people can voluntarily install according to shop instructions As finished product.Remote control electric fan is also a kind of mature technology for having used many years, and intelligent-induction of the present invention automatically controls electricity Fan key technology is that the operation state of fan motor is controlled by control circuit, is exactly to utilize software technology by electric fan Motor is divided into multiple revolving speed shelves operatings, utilizes the mounting temperature sensor on fuselage and pyroelectric human body infrared line sensor and heat Release electric human infrared sensor pendulous device and electronic control circuit plate by software programming technique realize intelligent-induction from Dynamic control fan motor operation status function, user can also be suitble to the comfort level of oneself by self-setting.Wind Fan alternating current generator only needs directly to come out operating coils and the difference wiring of actuating coil lead in process of production, i.e., and one The public wiring of item, an operating coils connecting line, totally 3 connecting lines, start-up capacitance are mounted on control to an actuating coil connecting line On wiring board processed, intermediate tap wiring need not, the other structures of fan are consistent with conventional Ian.For knowing well software programming It is to be easy to use 220 volt of 50 hertz frequency single-phase as described above by China for the electronic engineering technical staff of technology The cyclophysis of alternating current calculates the relationship of bidirectional triode thyristor angle of flow and output voltage, in conjunction with selected single phase ac The parameter of motor, it is red with reference to the parameter characteristic of selected temperature sensor (being commonly called as thermistor) and selected pyroelectric human body The parameter characteristic combination fan remote control of the parameter characteristic of outside line sensor and the singlechip chip (MCU) of selected model The basic technology used for many years passes through single-chip microcontroller after writing program by writing the application program in computer programming software Write device (cd-rom recorder) is interior into singlechip chip (integrated circuit) by the burning program, by the content requirement of software program and core The pin function port of piece and power supply power supply and functional requirement protracting circuit schematic diagram, then according to the fuselage appearance size of fan Layout and installation function require Design PCB circuit board, then require that suitable electronic component is selected to weld according to circuit diagram Control circuit board and each sensor and electromagnetic coil are installed to suitable position, by motor by output of delivering a child electronic control circuit plate Connecting line and electric power connection line connect as required, can be assembled into together with the other assemblies of fan with intelligence of the invention Incude automatic control electric fan.It is standby or pressed under operation state by the intelligent function of lower casing control panel or remote controler Key can enter intelligent work mode, by the function button (wind speed other than intelligent function key under intelligent mode working condition Function button or wind class function button and timing function key) intelligent work mode can be exited, software systems set pendulum of shaking the head Air blowing function is in intelligent mode and common remote control mode and can be independently operated, by function button mode press shutdown manually Key then close by system, and motor shuts down into standby mode.Intelligent-induction automatic control electric fan housing face-plate function and It should go to be laid out according to different shell style produced in control button layout actual use, intelligent-induction automatically controls electricity The topology layout of the PCB circuit board of fan should will be used cooperatively to adapt to different styles and function according to fan outer dimension Product, the function distribution of key and setting also should be with variations.

Claims (1)

1. the present invention include electric machine speed regulation technology, user's self-setting reference ambient temperature, motor with variation of ambient temperature from It is dynamic to adjust running speed technology, utilize pyroelectric human body infrared line sensor detecting mobile or static people and use site range Inside whether there are also the technologies of user.
CN201811006893.5A 2018-08-31 2018-08-31 Intelligent-induction automatic control electric fan Pending CN109306971A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110030206A (en) * 2019-05-09 2019-07-19 广东飞鹿电器有限公司 A kind of fan temperature-sensitive speed regulating method and its industrial or commercial electric fan
CN110043495A (en) * 2019-05-09 2019-07-23 广东飞鹿电器有限公司 A kind of industrial or commercial DC frequency-changing fan
CN112999376A (en) * 2021-03-08 2021-06-22 珠海格力电器股份有限公司 Ultraviolet lamp, control method thereof, air conditioner and computer readable storage medium
CN114060892A (en) * 2021-11-29 2022-02-18 奥普家居股份有限公司 Constant-temperature bathroom heater, control method thereof and storage medium

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030225542A1 (en) * 2002-05-28 2003-12-04 Chang-Ming Liu Electronic fan capable of automatic fan speed adjustment according to ambient temperature conditions
CN1536232A (en) * 2003-04-09 2004-10-13 华为技术有限公司 Fan monitoring device and its monitoring method
CN102022358A (en) * 2010-11-25 2011-04-20 大连海洋大学 Solar electric fan capable of automatically regulating speed by means of temperature and infrared ray
CN203500077U (en) * 2013-09-23 2014-03-26 苏州经贸职业技术学院 Pyroelectric human body infrared-based fan intelligent temperature control system
CN203570627U (en) * 2013-10-14 2014-04-30 江西理工大学 Fan control device with automatic tracking positioning function
CN203809330U (en) * 2014-05-21 2014-09-03 金陵科技学院 Automatic tracking smart fan
JP5764693B1 (en) * 2014-04-24 2015-08-19 アイリスオーヤマ株式会社 Fan
CN107781202A (en) * 2016-08-29 2018-03-09 胡敏 A kind of design of temperature-controlled fan
JP2018115623A (en) * 2017-01-19 2018-07-26 三菱電機株式会社 Blower

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030225542A1 (en) * 2002-05-28 2003-12-04 Chang-Ming Liu Electronic fan capable of automatic fan speed adjustment according to ambient temperature conditions
CN1536232A (en) * 2003-04-09 2004-10-13 华为技术有限公司 Fan monitoring device and its monitoring method
CN102022358A (en) * 2010-11-25 2011-04-20 大连海洋大学 Solar electric fan capable of automatically regulating speed by means of temperature and infrared ray
CN203500077U (en) * 2013-09-23 2014-03-26 苏州经贸职业技术学院 Pyroelectric human body infrared-based fan intelligent temperature control system
CN203570627U (en) * 2013-10-14 2014-04-30 江西理工大学 Fan control device with automatic tracking positioning function
JP5764693B1 (en) * 2014-04-24 2015-08-19 アイリスオーヤマ株式会社 Fan
CN203809330U (en) * 2014-05-21 2014-09-03 金陵科技学院 Automatic tracking smart fan
CN107781202A (en) * 2016-08-29 2018-03-09 胡敏 A kind of design of temperature-controlled fan
JP2018115623A (en) * 2017-01-19 2018-07-26 三菱電機株式会社 Blower

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110030206A (en) * 2019-05-09 2019-07-19 广东飞鹿电器有限公司 A kind of fan temperature-sensitive speed regulating method and its industrial or commercial electric fan
CN110043495A (en) * 2019-05-09 2019-07-23 广东飞鹿电器有限公司 A kind of industrial or commercial DC frequency-changing fan
CN110043495B (en) * 2019-05-09 2024-01-30 广东飞鹿电器有限公司 Industrial or commercial direct-current variable-frequency fan
CN112999376A (en) * 2021-03-08 2021-06-22 珠海格力电器股份有限公司 Ultraviolet lamp, control method thereof, air conditioner and computer readable storage medium
CN114060892A (en) * 2021-11-29 2022-02-18 奥普家居股份有限公司 Constant-temperature bathroom heater, control method thereof and storage medium
CN114060892B (en) * 2021-11-29 2023-05-16 奥普家居股份有限公司 Constant-temperature bathroom heater, control method thereof and storage medium

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