CN2246977Y

CN2246977Y - Electric curtain driving device

Info

Publication number: CN2246977Y
Application number: CN 96210217
Authority: CN
Inventors: 王世星
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-24
Filing date: 1996-04-24
Publication date: 1997-02-12
Anticipated expiration: 2006-04-24

Abstract

The utility model discloses an electric curtain driving device. When the switch of the utility model switched on, the rectification of the output voltage of an output winding by a rectifier can be realized, filtration by a capacitor can be realized, the rotation of a DC motor can be realized, and the positive rotation of the DC motor can be realized. When a switch is switched on, the motor stops for the loss of electricity. When another switch is switched on, the output winding of a transformer takes the same effects caused by the switching on the switch of the utility model. Half-wave rectification of the output voltage of the other winding of the transformer via a diode can be realized, filtration of the capacitor can be realized, the switching on of a transistor can be realized, the relay can be attracted, and the negative rotation of the motor can be caused. When the other switch is switched on, the motor stops for the loss of electricity. The utility model has the advantages of convenient manufacture and stable operation.

Description

The electrically driven curtain drive unit

The utility model relates to drive unit, relates in particular to the electrically driven curtain drive unit.

Curtain is the requisite commodity of daily life, and people are lifted on curtain on metallic rod or the metal track by quoit or sliding component usually, opens with manually drawing through rainwater in puddles wheel with rope again, uses inconvenience.

The purpose of this utility model provides a kind of electrically driven curtain drive unit easy to use.

Be illustrated below in conjunction with accompanying drawing.

Accompanying drawing is an electrically driven curtain drive unit electrical schematic diagram.

Curtain is lifted on respectively on two tracks of two-orbit beam by rolling member, uses transmission Rope is tied the rolling member string, and transmission rope is through pulley and the motor belt at two-orbit beam two ends Wheel joins, and is serially connected with spring in the transmission rope, and motor is driven by the electrically driven curtain drive unit. Should Drive unit has transformer B input coil L₁, output winding L₂、L ₃, output winding L₂Two termination rectifier D_1-4Input, rectifier D_1-4Positive output end and capacitor C₁, relay J, motor M links to each other, rectifier D_1-4Negative output terminal and capacitor C₁, relay J, motor M links to each other, transformer B output winding L₃One end is through K switch₁、K ₂With transformer B input coil L₁One end links to each other, K switch₁、K ₂Two through utmost point pipe D₅With capacitor C₂, resistance R, relay J, capacitor C₃Link to each other, resistance R links to each other with triode T base stage, transistor collector and relay J, and capacitor C links to each other, transformer B output winding L₃The other end and capacitor C₁, triode T emitter stage links to each other.

During use, Closing Switch K₁Transformer B obtains electricity, coil L₂Output voltage is through rectifier D_1-4Rectification, capacitor C₁After the filtering, dc motor M makes its forward, opens K switch₁Dead electricity is stopped Turn to.

Closing Switch K ₂, coil L ₂Act on the same, coil L ₃Output voltage is through diode halfwave rectifier, capacitor C ₂The DC voltage that obtains after the filtering makes triode T conducting, and the relay J adhesive changes the sense of current, and direct current generator M is reversed, and opens K switch ₂The dead electricity stall.

Scroll wheel in above-mentioned belt pulley and the rolling member adopts the rubber plastic mixture to make, and its effect is: increase the belt pulley damping, transmission rope is skidded, reduce the mutual impact sound of rolling member.The serial connection spring makes the transmission rope tensioning in the transmission rope.

The utility model has the advantages that: reduce by the electric current of switch (1), can reduce the requirement to switch; (2) control voltage separates with working voltage, reduces at line voltage, under the situation that load increases, can not influence the adhesive of relay, guarantees operate as normal; (3) because the transformer working time is extremely short, and transformer can adopt straight iron core to save material, processing and fabricating is convenient.

Claims

1. an electrically driven curtain drive unit is characterized in that it has transformer B input coil L ₁, output winding L ₂, L ₃, output winding L ₂Two termination rectifier D _1-4Input, rectifier D _1-4Positive output end and capacitor C ₁, relay J, motor M links to each other, rectifier D _1-4Negative output terminal and capacitor C ₁, the relay J motor M links to each other, transformer B output winding L ₃One end is through K switch ₁, K ₂With transformer B input coil L ₁One end links to each other, K switch ₁, K ₂Through diode D ₅With capacitor C ₂, resistance R, relay J, capacitor C ₃Link to each other, resistance R links to each other with triode T base stage, transistor collector and relay J, and capacitor C links to each other, transformer B output winding L ₃, the other end and capacitor C ₁, triode T emitter stage links to each other.