CN2357440Y

CN2357440Y - Wind disc motor proportion speed regulator

Info

Publication number: CN2357440Y
Application number: CN 98206853
Authority: CN
Inventors: 张元方
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-07-15
Filing date: 1998-07-15
Publication date: 2000-01-05
Anticipated expiration: 2008-07-15

Abstract

The utility model relates to a speed regulator of a motor, particularly a proportion speed regulator of a wind disc motor. The utility model is characterized in that a set of control switches K are connected to the input end of a proportion multiplier integrated circuit IC1, and the logical output of a proportion multiplier is connected to a time-base integrated circuit IC2 by a capacitor C. The output of the time-base integrated circuit is connected to the control end of a bidirectional thyristor T as a control signal. The utility model avoids stubs of motor coils by generating proportion voltage to control the speed of the motor. As a consequence, the utility model can ensure that the motor always works in the most efficient state.

Description

Wind coil motor proportion speed regulator

The utility model relates to the speed regulator of motor, particularly the proportion speed regulator of wind coil motor.

Present air-conditioning wind dish single-phase capacitor operation asyn. motor, all adopt the method for motor coil three tap speed governing, along with consumer's improving constantly to the electric equipment products quality requirement, this speed regulating method exposed day by day goes out various shortcomings, built-in thermostat (or thermal cut-off) as its motor can only be connected on the ground wire side, puncture for the modal winding minor insulation of motor like this and cause ground short circuit not have any protective effect, and have and burn motor, thereby initiation fire, result in greater loss; Sometimes need motor parallel operation, and, can produce dangerous circulation when in parallel, easily burn motor because the electric moter voltage of three each grades of tap is difficult to do consistently, and in case when burn-down of electric motor is arranged, other motor in parallel also will burn; Motor is when running up, and is most effective, and in three taps, then efficient is lower for low speed, because efficient is lower, the motor coil temperature rise is higher, reduces for motor and capacitance operation reliability wherein; Owing to realize three taps in coil, manufacturing process is comparatively complicated; Motor in, during low-speed running, owing to structural reason, electromagnetic noise is bigger; Speed adjustable range is limited.

In view of this, how to make the more effective work of motor, and simple in structure, the scope of adjustable speed can improve, so under the situation that can't increase on the cost, the machine operation reliability and the fail safe that increase substantially, this novel wound motivation place of grinding just.

The utility model designer is by means of being engaged in the practical experience that all kinds of electrical equipments are researched and produced processing and other fields for many years, and on the basis of feasibility study repeatedly, brand-new design constitutes, and gets this novel generation eventually.

At the deficiencies in the prior art, this novel purpose is a kind of device that can carry out speed governing to the work of motor of design, and it has bigger speed adjustable range, and can make machine operation at the most effective state with can avoid producing power pollution.

Principle of the present utility model is to adjust the running speed of motor by the operating voltage that changes motor, the method that realizes pressure regulation realizes proportional voltage signal of time for adopting digital circuit, drive bidirectional thyristor and produce proportional speed governing voltage, in order to adjust the speed of motor.

The purpose of this utility model is achieved in that and of the present utility modelly is characterised in that one group of control switch K is connected on the input of rate multiplier integrated circuit (IC) 1, the logic output of rate multiplier is received time-base integrated circuit IC2 through capacitor C, and the control end of bidirectional thyristor T is received in the output of time-base integrated circuit as control signal.

The utility model is avoided the tap of motor coil by producing the speed of ratio-voltage control motor, can make motor be operated in the most effective state always; Further illustrate the utility model below in conjunction with accompanying drawing.

Fig. 1 is the utility model structure chart.

Alternating voltage is by transformer B, bridge rectifier becomes direct voltage, receive in the circuit through integrated regulator IC3, control switch K receives the input of rate multiplier integrated circuit (IC) 1, rate multiplier can be selected model C C4527 for use, K switch produces one group of logic control signal, through the rate multiplier logical operation, at one-period (integral multiple of voltage cycle), the pulse of Q end output some, its rate multiplier output directly connects the TR end of time-base integrated circuit IC2 through capacitor C, trigger the output Q output high level square wave of time-base integrated circuit IC2, time-base integrated circuit IC2 can select model NE555 for use, the output Q of time-base integrated circuit meets bidirectional thyristor T through resistance R 2, the high level square wave quantity in each cycle, the time of decision bidirectional thyristor conducting, bidirectional thyristor can with motor joining, the average voltage numerical value of control motor is controlled rotating speed of motor.The clock CP of rate multiplier terminates to resistance R 1 and constitutes amplitude limit synchronous circuit contact mutually with diode D1 serial connection; The D of time-base integrated circuit IC2 and TH terminating resistor Rt, the charging circuit tie point that capacitor C t series connection constitutes, after the TR of time-base integrated circuit IC2 receives and triggers negative pulse, the D end no longer sucks electric current, electric current charges to capacitor C t through resistance R t, after the charging interval, the TH end is high level, IC2 turn-offs, output Q is a low level, and bidirectional thyristor T ends when current over-zero, controls definite ON time that each triggering signal is determined a two-way thyristor with this, the ratio of each cycle trigger impulse quantity, determined the time of bidirectional thyristor conducting, controlled the effective voltage of motor M, the control rotating speed of motor with this; Added voltage is sinusoidal wave on the motor M, no DC component, and bidirectional thyristor turn-offs in the time of just can being triggered current over-zero again when voltage zero-cross, thereby pollution-free to power supply.

The utility model also can make the speed governing of motor realize speed governing by the mode that winding three taps change the proportional control supply voltage into, speed adjustable range is big, mode of speed regulation is flexible, can help motor and connect use, tap voltage is inconsistent when avoiding three tap parallel operation, tap and joint conference produce the dangerous circulation of meeting, easily burn motor, and compromise all motors in parallel; The supply voltage speed governing also helps efficient and improves, electric machine temperature rise is high and cause electric capacity to be in permanent hot operation state when avoiding three tap taps to cause low speed, make electric capacity may therefore cause early failure, the supply voltage speed governing makes motor manufacturing technology become more or less freely, avoid the complexity of three taps on technology is made, simple in structure, to use reliably, efficient improves.

In sum, basis is novel can utilize simple structural design, uses this novel product can increase substantially functional reliability, easy to use.Obviously originally novel is the new design of a kind of novelty, progress and dark tool practicality.The above is this novel specific embodiment and the know-why of being used, the equivalence that the novel conception of Ruo Yiben is done changes, when the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet, all should be in this novel scope, explanation hereby.

Claims

1, a kind of wind coil motor proportion speed regulator, it is characterized in that one group of control switch K is connected on the input of rate multiplier integrated circuit (IC) 1, the logic output of rate multiplier is received time-base integrated circuit IC2 through capacitor C, and the control end of bidirectional thyristor T is received in the output of time-base integrated circuit as control signal.

2, wind coil motor proportion speed regulator according to claim 1, the clock CP that it is characterized in that rate multiplier terminate to resistance R 1 and constitute amplitude limit synchronous circuit contact mutually with diode D1 serial connection.

3, wind coil motor proportion speed regulator according to claim 1 is characterized in that the D of time-base integrated circuit IC2 and the charging circuit tie point that TH terminating resistor Rt, capacitor C t series connection constitutes.