CN2113369U

CN2113369U - Speed regulation controller for electric fan

Info

Publication number: CN2113369U
Application number: CN 91231399
Authority: CN
Inventors: 徐淇
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-11-14
Filing date: 1991-11-14
Publication date: 1992-08-19

Abstract

The utility model relates to a speed regulation controller for an electric fan. The speed regulation controller for an electric fan is composed of a non-steady state oscillation loop, a pulse programming loop, a speed regulation loop, a display device, and a voltage reduction rectification voltage stabilizing loop which provides working voltage for components. A reactance coil in the speed regulation loop is connected with a motor winding loop of the electric fan in series. An oscillating pulse passes through the pulse programming loop to carry out speed regulation for the electric fan; so the electric fan can generate various simulating gust which can automatically circulate and reciprocate, and the electric fan can run for a long time on a certain gear. The rotary speed grades which are corresponding to the electric fan can be displayed by a display.

Description

Speed regulation controller for electric fan

The utility model relates to a kind of electric fan speed governing is carried out and controls automatically and the gear device shown.

At present, the control of the speed governing of electric fan and gear mainly is following three kinds of modes, i.e. key switch touch switch, electronic switch intermittently, and the light of gear shows only has neon bulb to show and diode displaying.Above-mentioned intermittence, electronic switch was used for fitful wind control, remained many deficiencies, (a) was electric fan when being positioned at high rotating speed shelves, and intermittently controlling (switching) with this will be to electric fan tissue generation greater impact electric current; (b) this intermittently to control formed be mandatory fitful wind, it is not harmless using human body for a long time.

The purpose of this utility model just provides a kind of novel fan controller, its automatic conversion between both can practical speed governing gear, and then simulate multiple natural wind, can make electric fan be positioned at a certain gear long-term operation again as required, with numeral or indications the fan speed gear be shown intuitively simultaneously.

The utility model is achieved in that the reactance coil group is series at dividing potential drop in the fan motor circuit, coil is respectively organized tap through controllable silicon ground connection, by time base circuit and resistance, electric capacity is formed does not have steady whole oscillating circuit, send pulse through counter, and each pulse simultaneously divides three the tunnel to connect program switch respectively, decoder and display device and triode connect corresponding silicon controlled control end, make the requirement running of electric fan by a collection of selected materials, and the rotating speed level shown, also can excise no steady state oscillation loop, by manually making counter send a certain pulse, make electric fan stable operation and show the rotating speed level under a certain rotating speed, the operating voltage of each components and parts is provided by a rectifying pressurizer).

Accompanying drawing 1 is an electric fan speed-regulating controller block diagram;

Accompanying drawing 2 is an electric fan speed-regulating controller circuit connecting figure.

Describe structure of the present utility model and working procedure in detail below in conjunction with accompanying drawing.

The utility model is made up of no steady state oscillation loop, pulse program loop, flow control circuit, display unit, and no steady state oscillation loop produces signal through programming and flow control circuit speed governing, and by the corresponding progression of rotating speed after the show circuit demonstration speed governing.The operating voltage of components and parts is provided by the rectifying and voltage-stabilizing loop in each loop.

No steady state oscillation loop is by time base circuit piece NE, resistance R ₁～R ₃, capacitor C ₁～C ₃, adjustable resistance W, switch S ₄Form, 1. ground connection of the pin of NE wherein, pin 2., 5. respectively through capacitor C ₁, C ₃Ground connection, pin are 3. through the R of parallel connection ₃, C ₂8. 4. ground connection, pin connect working power end, and 2., 6. pin meets back series connection R altogether ₁, W, again pin 7., the pin R that 7. connects ₂, S ₄After connect working power.

The pulse program loop is by counter CD ₁, switch S ₁, S ₂With program switch S _3-1～S _3-5, capacitor C ₄, resistance R ₄, diode D ₁～D ₅Form, wherein CD ₁V _DDThe pin that termination working power, CP termination do not have a NE in the steady state oscillation loop 3., V _DDAnd be connected to switch S between the CP end ₂, R holds respectively through S ₁, C ₄Connect working power, and through R ₄Ground connection, CD ₁Q. ₁～Q. ₆The output terminal D that connects respectively ₁With S _3-1, D ₂With S _3-2, D ₃With S _3-3, D ₄With S _3-4, D ₅With S _3-5After be connected to R end, CD altogether ₁E _n, V _SSEnd ground connection.

Flow control circuit is by reactance coil L, bidirectional triode thyristor SCR ₁～SCR ₅Triode BG ₁～BG ₅, resistance R ₅～R ₁₀Form, wherein L is series in the fan motor winding loop, and its tap 1～5 end is controllable silicon SCR respectively ₁～SCR ₅Ground connection, BG ₁～BG ₅Collector electrode through R ₁₀Connect working power, emitter connects controllable silicon SCR respectively ₁～SCR ₅The control utmost point, base stage is respectively through R ₅～R ₉Meet CD in the pulse program loop ₁Q. ₁～Q. ₅Output terminal.

Display unit is by decoder CD ₂, decoder driver CD ₃, display led and resistance R ₁₁～R ₁₇Form, wherein CD ₂Six input end i ₀～i ₅Be connected to CD in the pulse program loop ₁Six output terminal Q. ₀～Q. ₅, CD ₂Four output terminal Q. ₁'～Q. ₄' meet CD ₃Four input end A, B, C, D, CD ₃Seven output terminals through resistance R ₁₁～R ₁₇Be connected to the input end of LED, CD ₂V _DDTermination working power, V _SSEnd ground connection, CD ₃V _DD, LT, BL termination working power, V _SSEnd ground connection.

In the accompanying drawing 2, DS is a timer, and D is a fan motor, T ₂Be reactor, the rectifying and voltage-stabilizing loop is by transformer T ₁, diode D ₆～D ₉Consist of bridge circuit, capacitor C ₅C ₆, three terminal regulator WY forms, and provides working power to each work components and parts.

When using the utility model device, connect as accompanying drawing 2.When need electric fan simulation fitful wind, closed S ₄, no steady state oscillation loop begins to produce oscillator signal and 3. is input to CD by the pin of NE ₂CP end, make CD ₁Produce count pulse, CD ₁Output Q. ₀～Q. ₆End has count pulse output successively, and through CD ₂, CD ₃Show corresponding number 0,1,2,3 by LED ..., work as S ₃₁When closed, because Q. ₆Through D ₁S _3-1Meet CD ₁R end work as Q. ₆When pulse output is arranged, CD ₁A circulation of this device is finished in zero clearing, in this process, and Q. ₁～Q. ₅Base potential raise successively, conducting, then SCR ₁～SCR ₅Conducting successively, i.e. the tap of reactor L seals in the motor windings loop successively, and electric moter voltage is descended, motor speed reduces step by step, form electric fan by startup, the low-speed running step by step that runs up, the circulating simulation fitful wind of preface commentaries on classics waits that the pulse of not having the steady state oscillation loop continues to trigger CD to the end ₁The time electric fan will repeat said process.Work as S _3-2When closed, the same analysis, fan speed by start, at a high speed, run to and stop, reciprocation cycle, respective display LED shows " 0,1,0 " number, and is corresponding with the rotating speed level.Work as S _3-3, S _3-4, S _3-5Arbitrary when closed, electric fan running and digital display routine are with above-mentioned the same.

Adjust the size of W in the no steady state oscillation loop, just can change the time slot that NE produces pulse, promptly change CD ₁Count pulse blanking time, simulation fitful wind cycle (also relatively stable time of each rotating speed of electric fan) is changed.

When electric fan need be in a certain grade of (a certain rotating speed level) long-play, can be with S ₄Disconnect no steady state oscillation loop and quit work, press S ₂To CD ₁CP end provide evoked potential, (manually step pulse), closed S _3-1, select CD ₁Output terminal Q. ₁～Q. ₅Any has count pulse output, corresponding the digital of correspondence or 1 or 2 or 3 or 4 or 5 of demonstrating of display device, and the corresponding tap terminals of reactance L makes fan motor by corresponding rotation speed operation through controllable silicon ground connection.When need stop, pressing S ₁Make operating potential be connected to CD ₁R end CD ₁Zero clearing gets final product.

Claims

1, a kind of electric fan speed-regulating controller, by the rectifying and voltage-stabilizing loop of operating voltage is provided and forms to components and parts after the step-down by the digital show circuit that decoder, decoder driver and display device are formed, it is characterized in that the electric fan speed-regulating controller comprises that also the oscillator signal output in no steady state oscillation loop is the signal input part CP that 3. pin of NE is terminated at the pulse program loop, the count pulse output terminal Q in pulse program loop _.0～Q _.5In, Q _.0～Q _.5Be connected to the corresponding input end i of decoder in the digital show circuit ₀～i ₅, Q _.1～Q _.5Respectively through resistance R ₅～R ₉Be connected to triode BG in the flow control circuit ₁～BG ₅Base stage, Q _.1～Q _.5Also respectively through diode D ₁～D ₅Be connected to program switch S _3-1～S _3-5An end.

2, controller as claimed in claim 1 is characterized in that described no steady state oscillation loop is by time base circuit piece NE, resistance R ₁～R ₃, capacitor C ₁～C ₃, adjustable resistance W, switch S ₄Form, 1. ground connection of the pin of NE wherein, pin 2., 5. respectively through capacitor C ₁C ₃Ground connection, pin are 3. through the R of parallel connection ₃, C ₂4., 8. ground connection, pin connect working power end, and 2., 6. pin meets back series connection R altogether ₁, W again pin 7., the pin R that 7. connects ₂, S ₄After connect working power.

3, controller as claimed in claim 1 is characterized in that described pulse program loop is by counter CD ₁, switch S ₁, S ₂With program switch S _3-1～S _3-5, capacitor C ₄, resistance R ₄, diode D ₁～D ₅Form, wherein CD ₁V _DDThe pin that termination working power, CP termination do not have a NE in the steady state oscillation loop 3., V _DDAnd be connected to switch S between the CP end ₂, R holds respectively through S ₁, C ₄Connect working power, and through R ₄Ground connection, CD ₁Q. ₁～Q. ₅The output terminal D that connects respectively ₁With S _3-1, D ₂With S _3-2D ₃With S _3-3, D ₄With S _3-4, D ₅With S _3-5After be connected to R end, CD altogether ₁E _n, V _SSEnd ground connection.

4, controller as claimed in claim 1 is characterized in that described flow control circuit is by reactance coil L, bidirectional triode thyristor SCR ₁～SCR ₅, triode BG ₁～BG ₅Resistance R ₅～R ₁₀Form, wherein L is series in the fan motor winding loop, and its tap 1～5 end is controllable silicon SCR respectively ₁～SCR ₅Ground connection, BG ₁～BG ₅Collector electrode through R ₁₀Connect working power, emitter connects controllable silicon SCR respectively ₁～SCR ₅The control utmost point, base stage is respectively through R ₅～R ₉Meet CD in the pulse program loop ₁Q. ₁～Q. ₅Output terminal.