CN2258032Y

CN2258032Y - Electric curtain machine

Info

Publication number: CN2258032Y
Application number: CN 95228442
Authority: CN
Inventors: 杨牧
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-28
Filing date: 1995-11-28
Publication date: 1997-07-23
Anticipated expiration: 2005-11-28

Abstract

The utility model relates to an electric curtain machine which uses an electric motor (12) as power and is decelerated by a worm wheel and a worm (10); the lower part of the running machine is connected with an insulation insertion plate (6); a helicoid spacing springs (7) are symmetrically connected to a curtain box at the lower part of the metal track (1); a three-way push-button is used for opening or closing the box (13); all the electric operation to the curtain is safe, accuracy and reliable through a set of automatic control system. The utility model has small volume and low cost, and well solves the problem of noise.

Description

Electric controller for curtain

The utility model relates to a kind of electric controller for curtain, belongs to the electric control gear of interior decoration accessory.

The keying of tradition curtain mostly is manual drawing-type, needs to open and close according to separately the tractive pull rope that requires by people, causes many troubles and inconvenience, and electric controller for curtain is then often because volume is big, power consumption and poor reliability and be not people's acceptance.CN2100825U discloses a kind of " electric controller for curtain ", with the unidirectional motor is power, just, anti-push switch control, by worm screw, worm gear reducer, also comprise wire spool, bolster, pulley, slide bar, curtain, pulley yoke, extension spring etc., this machine drives curtain open/close by the coiling and the unwrapping wire of stay cord on wire spool, the degree of tightness that stay cord is in operation is regulated by the swing of pulley yoke, the assurance motor is stable, can open and close the curtain of various loads, and this machine is cheap, can arbitrarily control curtain and open and close amplitude, be applicable to the hotel, the restaurant, hospital, family, office, the public place of entertainment.But this machine does not have spacing and other necessary automaton and safety precautions, is difficult to guarantee reliability, accuracy and the security of its action, does not more take noise reduction measure, and the suitable field boundary that has limited this machine closes.

The objective of the invention is to overcome the deficiency that above-mentioned existing curtain exists, provide that a kind of volume is little, cost is low, multiple functional, action safety, accurately, reliable, can close the electric controller for curtain that uses down at more extensive field boundary.

Above-mentioned purpose is achieved in that this electric controller for curtain, comprise that curtain metal rail, fixed pulley, draught line, tensioning spring, sport car, motor are by worm screw, worm gear reducer, rotating, stop button switch enclosure, the insulation plate is connected below the sport car, the limit spring symmetry is connected on the pelmet of metal rail below, initiatively reel adopts ratchet or friction drum, is connected with worm-wheel shaft.Extract 4 out with upper terminal difference cut-in relay K from the armature and the stator exciting coil of motor M ₁Movable contact on, with K ₂In conjunction with the circuit that constitutes three kinds of runnings of motor, by step-down, rectification circuit and relay K in parallel _Just, K _Instead, K ₁, K ₂Form circuit for controlling motor, two cutter three-position switch SA and diode D form circuit of motor speed regulation control based and K ₃The time-delay braking circuit that constitutes with C is formed the control circuit of electric controller for curtain jointly.Sealed in respectively in the positive and reverse rotation control circuit by limit spring, metal curtain rail is received and is formed limit switch SQ on the power cathode ₁And SQ ₂Between the inside and outside shell of machine, insert sound-absorbing material.This is that series excitation formula motor application is in the structure of window curtain driving mechanism.Also this running circuit can be changed a little, adopt shunt excitation formula or separately excited type motor, unidirectional capacitance operation asynchronous motor.When power and rotating speed are low, can consider to use the control of small-power slow-speed of revolution circuit simpler.Certainly also available infrared telecontrol switch substitutes press button, realizes straighforward operation.

This device has been discarded the method for original feed screw nut's block collision limit switch, and stopping means directly has been installed on the curtain rail, both handy and safes, again accurately and reliably.Adopt micro machine, reduced volume, reduced cost.Control circuit can be realized self-locking, interlocking, and Braking mode is stopped, and speed is selected, thereby security, accuracy and applicability are good, have controlled noise effectively, opens and closes freely.

Below in conjunction with accompanying drawing electric controller for curtain is described in further detail.

Fig. 1 is the electric controller for curtain structural representation

Fig. 2 is the electric appliance box side view

Fig. 3 is the control circuit figure of series excitation formula motor

Fig. 4 is the control circuit figure of shunt excitation formula motor

Fig. 5 is the control circuit figure of unidirectional capacitance operation asynchronous motor

Fig. 6 is the control circuit figure of small-power slow-speed of revolution circuit

Electric controller for curtain, comprise that curtain metal rail (1), fixed pulley (2), draught line (3), tensioning spring (4), sport car (5), motor (12) slow down by belt (9), worm gear, worm screw (10), rotating, parking button switch box (13), be connected insulation plate (6), snail volume limit spring (7) symmetry of sport car (5) below is connected on the pelmet of metal rail (1) below, initiatively reel (14) adopts ratchet, is connected with worm-wheel shaft (18).Extract 6 terminals cut-in relay K respectively out from the decline armature of motor M (12) and stator exciting coil of series excitation ₁Movable contact on, with K ₂In conjunction with constituting motor rotation circuit, K ₂The decision motor forward and backward to.By step-down, rectification circuit and relay K in parallel _Just, K _Instead, K ₁, K ₂Form circuit for controlling motor, two cutter three-position switch SA and diode D form circuit of motor speed regulation control based and K ₃Constitute the time-delay braking circuit with C.Limit spring (7) seals in the forward and backward circuit through lead (8) respectively, and metal curtain rail (1) is received and formed limit switch SQ on the negative pole of power supply ₁And SQ ₂Between the inside and outside shell (15) (16) of machine, insert sound-absorbing material (17), reach the effect of sound insulation and noise reduction.

When pressing right lateral switch S B _JustThe time, the one side relay K _JustSolenoid get electricly, its all normally open contact closures make relay K ₁, K ₂Solenoid get electric, its normally open contact closure, motor circuit constitutes is just changeing state.The 220V power supply just changes motor simultaneously.SB on the other hand _JustNormally open contact be opened,, even press left lateral switch S B _Instead, relay K _InsteadCan not adhesive.Such interlock circuit plays a protective role to maloperation.When running to insulation plate (6), inserts between limit spring and curtain rail (1) by sport car (5) prograde circuit cut-out, perhaps actuation button switch S B _StopThe time, relay K _JustDead electricity, its normally open contact is opened, and causes relay K ₁, K ₂Normally opened contact open, the normally-closed contact closure, motor loses the 220V power supply, simultaneously energy-dissipating brake circuit forms, capacitor C and relay K ₃The delay circuit that constitutes enters duty, makes the motor excitation coil obtain the 12V direct current and enters on-position, makes the very fast stall of motor.C discharge off after about 3～5 seconds, K ₃Cut off the 12V braking power, circuit is replied static.When sport car (5) after spacing parking, if corresponding SQ disconnects when continuing to press in the same way switch, circuit is not because of constituting the loop, so can't reset.But when pressing reverser, because of another SQ is closed, thus can back-to-back starting, this is again a safety precautions.When pressing left lateral switch S B _InsteadThe time, relay K _InsteadSolenoid get electric, the normally open contact closure that they are all, normally closed interlock is opened, and makes relay K ₁Solenoid get electric, its normally open contact closure, K ₂Do not work, motor circuit constitutes inverted status, infeeds 220V voltage simultaneously, makes the motor counter-rotating.Even press right lateral switch S B this moment _Just, relay K _JustCan not adhesive, circuit interlock.Two three-pole switch SA and diode D form the step speed regulation of motor (12), make motor running speed can by the user need regulate.Electric controller for curtain is in operation, motor (12) and worm gear, worm screw (10) decelerator can produce bigger noise, so reduce noise with the sound-absorbing material (17) that is sealed between the inside and outside shell (15) (16), almost can only hear grating and strike note between curtain rail (1) and the race pearl, effect is gratifying.

If use shunt excitation formula motor or separately excited type motor, single-phase capacitance operation asynchronous electric, only need be changed circuit a little as Fig. 4, Fig. 5 and get final product.When power and rotating speed are low, can consider to use Fig. 6 control circuit simpler.

Claims

1. electric controller for curtain, comprise that curtain metal rail (1), fixed pulley (2), draught line (3), tensioning spring (4), sport car (5), motor (12) slow down by belt (9), worm gear, worm screw (10), rotating, stop button switch enclosure (13) is characterized in that:

A, sport car (5) the below insulation plate (6) that is connected, snail volume limit spring (7) symmetry is connected on the pelmet of metal rail (1) below, and initiatively reel (14) adopts ratchet or friction drum, be connected with worm-wheel shaft (18),

B, extract 4 out with upper terminal cut-in relay K respectively from the armature of motor M (12) and stator exciting coil ₁Movable contact on, with K ₂In conjunction with constituting the motor rotation circuit, by step-down, rectification circuit and relay K in parallel _Just, K _Instead, K ₁, K ₂Form circuit for controlling motor, two cutter three-position switch SA and diode D form circuit of motor speed regulation control based and K ₃Constitute the time-delay braking circuit with C,

C, limit spring (7) are sealed in the forward and backward circuit by lead (8) respectively, and metal curtain rail (1) is received and formed limit switch SQ on the negative pole of power supply ₁And SQ ₂,

D, between the inside and outside housing (15) (16) of machine, fill out people's sound-absorbing material (17).