CN85203004U

CN85203004U - Telecontrol device for drawing curtains

Info

Publication number: CN85203004U
Application number: CN 85203004
Authority: CN
Inventors: 兰如康
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-07-17
Filing date: 1985-07-17
Publication date: 1986-08-13

Abstract

The utility model discloses a telecontrol device for drawing curtains, which has the advantages of simple structure and easy operation. Besides, the telecontrol device for drawing curtains uses alternating current power supply and can randomly control the size of the opening or closing of a curtain as required. The utility model is composed of a power supply pushbutton switch, a transformer, a rectifier, the changing switch of the positive and negative polar of a DC power supply, a reducing apparatus and an endpoint limiting clip fixed on the transmission rope of a curtain. The curtain is operated when the power supply pushbutton is pressed. The changing switch of the positive and negative polar of the DC power supply is driven by the endpoint limiting clip fixed on the transmission rope of the curtain, when the curtain reaches the endpoint of opening or closing. The positive polar and the negative polar of the DC power supply are switched. A motor gets a current of opposite direction to inverse, which can realize the opening or closing conversion of the curtain. The curtain then can be stopped during operation at any position as the pushbutton is released.

Description

Telecontrol device for drawing curtains

The present invention relates to window shade arrangement.For a long time, people have a kind of needs, promptly wish can be in any possible place draw-back curtain easily.

Prior art about electrically driven curtain proposed as the phase in " electronics newspaper " one nine eight four on October 14, the 41st.This prior art has been introduced a kind of " a push-button electrically driven curtain ", it mainly comprises an AC mains source press button, transformer, rectifier, relay, motor each one and two curtain opening and closing dead space switch, two bump briquettings that move with the curtain transmission rope.Its course of work is such: power knob is to be used for making behind the electric motor starting that actuating motor rotates being connected on the power circuit, two dead space switch that are positioned at curtain two all are in the state of connecting power supply, the curtain circuit gets electric operation, when curtain arrives the terminal point of opening or closing, spacing bump briquetting on the curtain transmission rope is with on one of them limit switch top, make the entire circuit dead electricity, curtain stops at once automatically, while is a terminal point therein, one of them dead space switch seals in low-voltage dc circuit with relay, relay gets electric two groups of contact adhesive commutations, reach switch motor DC current direction, make motor counter-rotating, drive curtain and realize to opening or to the conversion of the direction operation of closing.But there is following shortcoming and defect in this prior art: circuit is simple inadequately, and used a relay, increased manufacturing cost, electrically driven curtain device by this technology manufacturing, could out of service when curtain arrives the terminal state open or close, so, if in the curtain fault (when being suspended on the window catch once in a while) of moving that something unexpected happened midway as casement, the processing of stopping of then can not cutting off the power supply immediately causes damage; The 2nd, can not satisfy people the different needs of room light photograph is arbitrarily controlled the curtain open/close size; Window shade arrangement by this prior art manufacturing, when needing remote-controlled curtain suspension, then from operation place (being power knob or switch) to needing San Tiao city AC power conductors (comprising zero line) the curtain at least, and the people of general no electrician's knowledge is brought certain difficulty when mounted technically.Be by the described electrically driven curtain of this prior art in addition, the city passes through two limit switches with 220 volts of alternating currents, circuit contact is many, easily because of the circuit loose contact causes the electrically driven curtain operation unreliable, increases electric leakage simultaneously and causes the hazards that the people gets an electric shock.

Remote control electric window shade arrangement of the present invention is to overcome above-mentioned shortcoming and defect, and the electrically driven curtain device for people provide a kind of economic, practical, reliable remote control easy to use is characterized in that a, a direct current both positive and negative polarity change-over switch (K) is arranged; On b, the direct current both positive and negative polarity change-over switch (K) two terminal point position-limit mechanisms (8) are arranged.The sense of current by the K switch motor, with control motor forward or reverse, when curtain moves the terminal point that reaches out or close, the spacing card of terminal point on the curtain transmission rope directly drives direct current both positive and negative polarity change-over switch (K), make motor obtain rightabout electric current and reverse, realize the conversion of opening or closing of curtain.Stop immediately as long as disconnect AC power (or decontroling power knob N) motor, thereby can arbitrarily make curtain be parked on the optional position to the needs of room light illumination according to people (promptly controlling the size of curtain open/close arbitrarily).Said direct current both positive and negative polarity change-over switch (K) is made of two insulating carriers (A, B), has two hard contacts (4,5) to be connected with motor circuit respectively on the insulating carrier.Elastic mechanism (10) is established on (4,5) in the contact, and is good to guarantee the contact of current circuit contact.There are three sheet metals (1,2,3) to be connected with dc source both positive and negative polarity (+,-) respectively on another insulating carrier.In two insulating carriers (A, B), one of them insulating carrier is provided with the position-limit mechanism (8) that only allows curtain transmission rope (16) to pass through by the spacing card of terminal point (11) that stops on the curtain transmission rope.Two insulating carriers (A, B) of direct current both positive and negative polarity change-over switch (K) can be done parallel relative displacement, so that the dc source of different directions to be provided to motor.In the said direct current both positive and negative polarity change-over switch (K), just in time drop on the insulation seam (17) of the separation positive and negative power supply on another insulating carrier with two contacts (4,5) on the insulating carrier that motor circuit is connected.Should insulation stitch (17) three-piece metal sheet (1,2,3) junction simultaneously with the direct current positive and negative power supply, should form a shape level and smooth or garden is sliding, can successfully sew in order to two contacts (4,5) that connect with motor on another insulating carrier and cross from insulation.The present invention uses 220 volts of single-phase alternating currents, and power consumption is few, and since the conversion of curtain traffic direction act on K by the spacing card of terminal point and realize.Therefore as long as provide 220 volts of alternating currents to transformer, curtain is folding back and forth, the row of not stopping transport, as long as transformer dead electricity, curtain stops at once, so from the lead no more than two (thighs) of transformer (comprise live wire and the zero line) usefulness of operation place (being city's AC power button or switch) to the window shade arrangement, no matter thereby closely operation or remote control, all get final product with no more than two (thigh) leads.In addition, capacitor C in parallel in motor circuit _K, make motor be in the contact (4,5) of change-over switch when insulation seam (17) is gone up and discharge that motor is rotated further, make contact (4,5) cross insulation seam (17) smoothly.

Device of the present invention mainly comprises referring to appended circuit diagram and schematic diagram: AC mains source switch (or button) N, transformer (13), rectifier (12), motor (14) and capacitor C _K, dc source both positive and negative polarity change-over switch (K), reduction of speed device (15), curtain transmission rope (16) etc. each one (bar), and two spacing cards of terminal point (11) that move with the curtain transmission rope.

Remote control electric window shade arrangement of the present invention has saved relay and two dead space switch, makes the circuit of electrically driven curtain and structure become simpler and help reducing manufacturing cost; Saved two dead space switch, greatly reduce the power circuit contact, has improved its reliability of operation energy; When the curtain situation that is in operation that something unexpected happened, immediately moment deenergization, curtain is stopped handle and avoids loss, simultaneously also can regulated at will curtain open/close size, to adapt to the different needs of people's indoor lighting; This device uses 220 volts of AC powers, and power consumption is few; Entire circuit all works under the low-voltage dc voltage except the circuit before the transformer, and is therefore safe in utilization, comprises that from operating point (power knob switch) to curtain transformer live wire and zero line only use two leads, is suitable for long-distance remote control; In addition, owing to adopted the reduction of speed device, so curtain is difficult for curtain at will being drawn back or closure because of the influence (as wind) of extraneous factor.

Device of the present invention, described direct current both positive and negative polarity change-over switch (K) will be described by following example and diagram.

Fig. 1 is the device schematic diagram of invention.

Fig. 2 is the manipulated or operated apparatus of invention.

Fig. 3, Fig. 4 and Fig. 5 are the basic views of first kind of structure of the direct current both positive and negative polarity change-over switch (K) described in the device of inventing.

Fig. 6, Fig. 7 and Fig. 8 are the basic views of second kind of structure of the direct current both positive and negative polarity change-over switch (K) described in the device of inventing.

Fig. 9 is the basic view of the third structure of the direct current both positive and negative polarity change-over switch (K) described in the device of inventing.

Figure 10 is the 4th a kind of structural representation of the direct current both positive and negative polarity change-over switch (K) described in the device of inventing.

Fig. 3, Fig. 4, Fig. 5 and Fig. 6, Fig. 7, Fig. 8 are the basic view of first kind and second kind structure of the described direct current both positive and negative polarity of device of the present invention change-over switch (K), the garden body of two insulating carrier for being nested together mutually, one of them insulating carrier is provided with

The level and smooth Baltimore groove of shape (6), another insulating carrier are provided with the convex surface (7) mutually meshing with Baltimore groove (6), make two insulating carriers can relatively rotating at original plane keeping parallelism.Have at least two cover inlets (9) on the Baltimore groove (6), and be provided with and overlap the movable chock (19) that inlet (9) matches, movable chock (19) is fixed under the fixed panel of device by screw.

Simultaneously referring to Fig. 1 and Fig. 2, when pressing AC power press button N, closing of circuit, 220 volts of alternating currents enter change-over switch (K) through transformer (13) step-down and rectifier (12) output DC source, the electric current positive pole forms the direct current loop through (1) → (5) → motor → (4) → (the 2) → negative pole of change-over switch (K), motor (14) gets electric rotation, drive the output shaft (18) of speed decreasing mechanism (15), output shaft (18) drives curtain rope (16), curtain is operation slowly, during terminal point that the spacing card of the terminal point on being fixed in the curtain rope (11) runs to out or closes with curtain, spacing card (11) directly drives the insulating carrier that change-over switch (K) is provided with terminal point position-limit mechanism (8) and does parallel relatively rotating with respect to another insulating carrier, power contact switches, the electric current positive pole forms the loop through contact (3) → (4) → motor → (5) → (2) → negative pole of change-over switch (K), motor (14) reverses at once, driving curtain moves round about, the terminal point that arrival is opened or closed repeats above action again, goes round and begins again.As long as disconnect 220 volts of alternating currents, motor (14) also just stops at any time, reaches the purpose of any control curtain open/close size.

Claims

1, a kind of remote control electric window shade arrangement that comprises that motor (14), speed decreasing mechanism (15), the spacing card of curtain terminal point (11), transformer (13), rectifier (12) and transmission rope (16) constitute is characterized in that:

A, a direct current both positive and negative polarity change-over switch (K) is arranged;

Two terminal point position-limit mechanisms (8) are arranged on b, the K.

2, as the said remote control electric window shade arrangement of claim 1, it is characterized in that direct current both positive and negative polarity change-over switch (K) is made of two insulating carriers (A, B), there are two hard contacts (4,5) to be connected with motor circuit respectively on the insulating carrier, have three sheet metals (1,2,3) to be connected with dc source both positive and negative polarity (+,-) respectively on another insulating carrier.

3, remote control electric window shade arrangement as claimed in claim 1 or 2, it is characterized in that on the direct current both positive and negative polarity change-over switch (K), just in time drop on the insulation seam (17) of separating power positive cathode (+,-) on another insulating carrier with two contacts (4,5) on the insulating carrier that motor circuit is connected, insulation seam (17) is level and smooth or slick and sly shape with the junction of three sheet metals (1,2,3) that are connected with power positive cathode.

4, remote control electric window shade arrangement as claimed in claim 2 is characterized in that two insulating carriers (A, B) of direct current both positive and negative polarity change-over switch (K) are the garden body, and one of them insulating carrier is provided with

The level and smooth Baltimore groove of type (6), another insulating carrier is provided with the convex surface (7) that is meshed with Baltimore groove (6), have at least two cover inlets (9) on the Baltimore groove (6), and being provided with and overlapping the movable chock (19) that inlet (9) matches, movable chock (19) is fixed under the fixed panel of this device by screw.

5, remote control electric window shade arrangement as claimed in claim 1, the live wire of the transformer (13) on it is characterized in that from 220 volts of power switch и to curtain and the power lead no more than two (thighs) of zero line.

6, remote control electric window shade arrangement as claimed in claim 1 is characterized in that being parallel with at the motor circuit two ends capacitor C _K