CN2199732Y - Electric device for opening or closing curtain - Google Patents

Abstract

The utility model relates to an electric device for a curtain, belonging to the decoration of a window and a door indoors. The electric device for curtain is provided with an alternating current synchronous motor with gear reduction. The motor box and the idler pulley of the electric device for a curtain are respectively arranged on end surfaces at two inner sides of the cover box of a curtain, and two spacing switches are arranged at the position near to the driving wheel of the motor box. Rope positive guiding devices are arranged at the positions near to the driving wheel and the idler pulley to ensure ropes can not exceed a wheel slot in operation. A circular transmission rope is supported between the driving wheel and the idler pulley, and the rope is provided with a collision block, namely, a curtain retractor. The utility model has the characteristics of big rotary moment, simple structure, convenient installation and operation, and broad application.

Description

Electric device for opening or closing curtain

The utility model belongs to the adornment of indoor door and window.

Along with the raising of people's life, inside plant also towards to the shelves development, develops towards practical, attractive in appearance, automatically controlled direction.The existing window shade arrangement overwhelming majority is directly to affect the backguy of curtain or pulling curtain to realize opening and closing with hand, many electronic curtain mechanisms are also arranged in patented technology in recent years, mostly used drive motors is low pressure DC micromotor or miniature alternating current generator, and have one to overlap complicated control system, reducing gear, make electrically driven curtain exist structure too complicated, inconvenience is installed, the fault rate height, the micromotor that drives usefulness seems that again power is little, the speed of service waits shortcoming slowly, causes the complete machine dependability to reduce.

The purpose of this utility model is to overcome the problem that exists in the prior art, the special this programme that proposes, and it is low, simple in structure that it has a cost, high reliability features.

By as above design, the electric controller for curtain that this programme provided includes the curtain cover box, motor, the fly rope of annular, driving wheel, guide wheel, electric switch, its concrete feature is: its motor is to select the permasyn morot that has gear reduction unit for use, all be provided with limit switch on two lines of the annular fly rope of the top driving wheel guiding of the motor box of splendid attire motor, and the rope orientating device is arranged at the nearly driving wheel in limit switch rear place, the rope orientating device also is equipped with at nearly guide wheel place on the wheel bracket that guide wheel is installed, collision block is housed on looped cord, the tractor of curtain just, motor box and wheel bracket are contained in the two ends of curtain cover box inboard respectively, in their both sides the guide rail that hangs curtain is housed, on the wall of curtain side, starting button is housed.Its control circuit board is contained in the motor box, its control circuit by dropping resistor R1R2, bridge rectifier Z, two limit switch KWX, relay J, unloading diode, and starting button K formed, its bridge rectifier is in parallel with motor after starting button K is connected to civil power through two current-limiting resistances, relay, two limit switches, and unloading diode parallel connection after wave filter connects the output of bridge rectifier.

Adopt this programme can embody following superiority: 1. the permasyn morot moment of the band gear reduction unit of mechanism of institute employing is big, the functional reliability height; 2. the rope orientating device is housed near driving wheel and guide wheel, has reduced fault rate; 3. two limit switches and whole parts comprise that two limit switches and circuit board all are contained in the motor box, and it is simple in structure, aesthetic in appearance; 4. except that the sleeve mechanism that this programme is installed uses, can also only purchase motor box and wheel bracket two major part parts usefulness, so adaptability is extensive as the transformation of common pelmet.

Fig. 1 is the general structure schematic diagram of the electric controller for curtain of this programme.

Fig. 2 is the structural representation of motor box.

Fig. 3 is the electrical schematic diagram of this programme control circuit.

Structure below in conjunction with the description of drawings present embodiment.Motor box (2) and wheel bracket (11) are housed in the both ends of the surface of pelmet (1), the guide rail (8) of two suspension curtain also is housed on their end face of the outside at pelmet simultaneously, it is bearing the total weight of curtain, motor (12) and control circuit board are housed in motor box inside, driving wheel (3) is housed on motor shaft, guide wheel (10) is housed on wheel bracket (11), between driving wheel (3) and guide wheel (10), prop up annular fly rope (7), this rope has passed the hole of four orientating devices (4), to guarantee normal operation, a limit switch (5) respectively arranged in that the rope orientating device (4) of motor box is preceding, rope also passes from the hole that limit switch is removed, three collision blocks (6) are housed on fly rope (7), the position of collision block on rope is adjustable, curtain shown in Figure 1 is to split the pattern of flooding mutually, and also available whole curtain one is moved the end to.Circuit control panel is contained in the motor box, and button (13) is housed on the wall.Put into operation when pressing the start button motor, bridge rectifier is powered to relay, and the normally opened contact of relay J is connected and pinned, and curtain is moved the butt piece to and run into limit switch, makes the relay short circuit, and relay electric-loss discharges, and self-holding contact outage motor stops operating.

The motor of this programme adopts 7-20 watt AC permanent-magnet synchronous motor, and its torque is big, cooperates the curtain that can be suitable for variety classes, specification and various quality materials with the guide rail that hangs curtain.Its volume is little, and is easy for installation, and a new cover can be installed, and also can transform easily and improve old pelmet.The preproduction of this programme is through the evidence reliable in function.

Claims (1)

1, a kind of electric controller for curtain, it includes curtain cover box (1), motor (12), annular fly rope (7), driving wheel (3), guide wheel (10), electric switch, the motor that it is characterized in that it is the permasyn morot (12) that has gear reduction unit, all be provided with limit switch (5) on two lines of the annular fly rope (7) of driving wheel (3) guiding above the motor box of this motor of splendid attire (2), there is rope orientating device (4) at the place at the nearly driving wheel in the rear of limit switch, go up nearly guide wheel place at the wheel bracket (11) that guide wheel (10) is installed rope orientating device (4) also is housed, it is the curtain tractor that collision block (6) is housed on the fly rope of annular, motor box and wheel bracket are contained in the two ends of curtain cover box respectively, the guide rail (8) that hangs curtain is housed in their both sides, starting button (13) is housed on the wall of curtain side, its control circuit board is contained in the motor box, its control circuit is by dropping resistor (R1R2), bridge rectifier (Z), wave filter, two limit switches (KWX), relay (J), the unloading diode, and starting button (K) is formed, its bridge rectifier is in parallel with motor (SYB) after shift knob (K) is connected to civil power, relay through dropping resistor, two limit switches and unloading diode parallel connection are after wave filter connects the output of bridge rectifier.

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