CN2140114Y

CN2140114Y - Universal speed regulation switch for fan

Info

Publication number: CN2140114Y
Application number: CN 92221607
Authority: CN
Inventors: 翟其刚
Original assignee: Shanghai Institute of Metallurgy of CAS
Current assignee: Shanghai Institute of Optics and Fine Mechanics of CAS
Priority date: 1992-11-10
Filing date: 1992-11-10
Publication date: 1993-08-11
Anticipated expiration: 2002-11-10

Abstract

The utility model discloses a universal speed regulation switch for the fan, belonging to the electronic switch used for controlling the electricity supply voltage and regulating the rotation speed of the fan electricity motor, comprising a switch outer shell and an electronic circuit. The utility model is characterized in that the panel of the outer shell is provided with function buttons, control buttons, luminous tubes displaying different function states and a digital tube displaying the speed regulation degree and the timing number. The electronic circuit is provided with a microcontroller and a display circuit and a side-zero circuit of the electricity net controlled by the microcontroller. No mechanical component and rotating component are provided. The utility model has the advantages of high reliability and energy saving. The microcontroller completes the functions of speed regulation, timing and natural wind simulation. The utility model can be used for the electric fan of any model and can also be used for light regulation.

Description

Universal speed regulation switch for fan

The electronic switch that the control supply power voltage is regulated motor speed and provided time-program(me) to select is provided the general speed-regulating switch of the utility model fan.

Fan speed-regulating switch commonly used at present has manual governing switch that uses band switch stepping tandem reactor and the stepless speed regulation switch that changes the thyristor operating angle regulation voltage with the turn potentiometer, above-mentioned speed-regulating switch only has speed-regulating function, owing to use band switch and potentiometer, its reliability is relatively poor, the contact is easily aging, life-span is shorter, and the speed-regulating switch of different fan models usually can not be general.

The purpose of this utility model is to design a kind of universal fan speed governing electronic switch of novelty, applicable to any model fan, not only has function of stepless speed regulation, and the function of timing, digital display and natural wind simulating is arranged.

The utility model comprises the speed-regulating switch shell of charged source switch and power circuit is arranged, can visit the electronic circuit of silicon circuits for triggering, it is characterized in that housing face-plate is provided with function button, the rise and fall button, show respectively speed governing, regularly, the light-emitting diode of natural wind simulating functional status, can show the speed governing size and the charactron of numerical value regularly, microcontroller be arranged in the electronic circuit and be subjected to the line voltage zero cross detection circuit and the display circuit of microprocessor controls.

The microcontroller that uses in the utility model can be the 68HC05 Series of MCU (MCU) of motorola inc.

The utility model replaces electrical equipment, mechanical part with electronic unit, does not have rotatable parts, has reduced the fault that loose contact may cause, and has improved the reliability of speed-regulating switch.Finish the control and the adjusting of speed governing, timing and natural wind simulating with an integrated circuit (IC) chip, energy savings applicable to any electric fan model, also can be used for light and regulates.

Following accompanying drawing can further specify 26S Proteasome Structure and Function of the present utility model.

Fig. 1 is a circuit diagram of the present utility model, and Fig. 2 is the housing face-plate design drawing.

5 frame of broken lines are arranged among Fig. 1, and wherein 1 is 5 volts of power circuits, produces 5 volts, 150 milliamperes of direct current power supplies.The 2nd, the line voltage zero cross detection circuit is rectified into 100 all sinusoidal half-waves with 50 weeks, 5 volts of AC sine waves, and every half wave cycles is 10 milliseconds, and it links to each other with microcontroller 6, but the moment of microcontroller detection of grid voltage zero-cross.3 is display circuit, comprises the charactron 7 of display speed grade and timing length and four light-emitting diodes 8,9,10,11 of the speed governing that shows speed-regulating switch, short timing, length timing and four kinds of speed governing states of natural wind simulating.4 is three buttons, and wherein 12 is function button F, 13 for the rising button ↑, 14 for the decline button ↓.5 is thyristor gating circuit, and the positive pulse of microcontroller 6 outputs is amplified through a silicon PNP triode 15, triggers controllable silicon 16, makes it conducting, fan motor 17(M) the energising running.18 is mains switch.

Fig. 2 is the housing face-plate design drawing of the general speed-regulating switch of the utility model fan.Among the figure lower right corner be with Fig. 1 in 18 corresponding mains switches.Top be with Fig. 1 in 7 corresponding charactrons and with Fig. 1 in 8,9,10,11 corresponding light-emitting diodes.The bottom is three buttons, i.e. 12 among Fig. 1,13,14.

With reference to Fig. 1, operation principle of the present utility model can be described.After the energized, microcontroller is query function button F (12) immediately, whenever press function button No. one time, enter speed governing, short timing, regularly long and four kinds of functions adjustment of natural wind simulating state respectively, four kinds of states are shown by light-emitting diode 8,9,10,11 respectively.Press function button when the 5th time, revert to the speed governing state again.Under each function adjustment state, microcontroller is inquired about and is risen or decline button 13,14.The relative value that rises, descends is shown by charactron 7, under different function adjustment states, shows the variation of velocity magnitude, 0-90 minute short timing, 0-9 hour long timing and the different natural wind simulatings of fan respectively.When function button shows the speed governing state, microcontroller is behind query function button and rising, decline button, promptly enter the electrical network zero passage detection, instantaneous in the line voltage zero passage, the microcontroller clock begins counting, and after through certain hour τ, microcontroller is exported a pulse, trigger bidirectional triode thyristor 16, fan electromotor M(17) the energising running.The trigger impulse cycle should be 10 milliseconds mutually with the line voltage half wave cycles, and promptly per 10 milliseconds of triggerings once.The maximum of time τ also is 10 milliseconds, the size of rise, the decline button being regulated τ.When τ is zero, promptly 220 volts of alternating voltages all are added on the fan electromotor, and the fan full-speed operation when τ=5 millisecond, then has only 110 volts of alternating voltage drive motors, and rotation speed of the fan slows down, and reaches the speed governing purpose.Fig. 3 is the pulse sequence under the fan speed-regulating state, Up2 is a trigger impulse among the figure, Up1 is 5 volts of half-wave AC signal of electrical network zero cross detection circuit, the time delay at trigger impulse Up2 forward position and Up1 zero point is τ, Up3 is 220 volts of ac grid voltage peak values, and the dash area of Up3 is the voltage that is added on the motor M.

When function button 12 was in timing adjustment state (short timing, regularly long), microcontroller read to know timing value according to rising, decline button 13,14.Microcontroller is in the moment of line voltage zero passage, and clock begins counting, and the secondary zero-crossing timing is spaced apart 10 milliseconds.Every detection voltage zero-cross is once counted once.Gate time and timing value are compared, when its difference is zero, promptly stop to trigger controllable silicon 16, the fan stall.

When function button 12 is in the natural wind simulating state, microcontroller is according to the selection of rising, decline button, automatically change from moment of line voltage zero passage to the time τ that sends trigger impulse, promptly regulate the voltage that is added on the fan electromotor according to selecting to automatically perform distinct program by microcontroller, change rotation speed of the fan and duration, make wind speed in the fixed wind speed range of speed governing state, realize natural wind simulating by the rule of selecting (selecting) by rising, decline button.

Claims

1, the general speed-regulating switch of a kind of fan, the electronic switch that the control supply power voltage is regulated fan motor speed and provided time-program(me) to select is provided, comprise the speed-regulating switch shell of charged source switch and power circuit is arranged, the electronic circuit of thyristor gating circuit, the housing face-plate that is characterised in that of the present utility model is provided with function button, the rise and fall button, show speed governing respectively, regularly, the light-emitting diode of natural wind simulating functional status, can show the speed governing size and the charactron of numerical value regularly, microcontroller be arranged in the electronic circuit and be subjected to the line voltage zero cross detection circuit and the display circuit of microprocessor controls.

2, by the described speed-regulating switch of claim 1, it is characterized in that said microcontroller is the 68HC05 Series of MCU of motorola inc.

3, by claim 1 or 2 described speed-regulating switchs, it is characterized in that said timing function has short timing in 0-90 minute and two kinds of selection modes of long timing in 0-9 hour, each is by a diode displaying.