CN85201297U

CN85201297U - Electric window curtain control device

Info

Publication number: CN85201297U
Application number: CN 85201297
Authority: CN
Inventors: 董春楼
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-04-15
Filing date: 1985-04-15
Publication date: 1986-01-22

Abstract

The utility model discloses an electric window curtain control device, which belongs to daily electrical equipment. The electric window curtain control device solves the defects that the conventional electric window curtain is high cost, complicated structure; besides, control mechanisms are dispersed and conductors are longer. The defects are caused because the conventional electric window curtain uses relays. The electric window curtain control device adopts starting switches of pulling type double pole double throw and the normal closing limit switch of a spring contact to control power sources on and off and the steering of a motor, which can save the relays. The utility model has the advantages of low cost, simple structure and convenient installation, reliable control, etc. Besides, the electric window curtain control device can also keep the characteristic of pull wires of conventional curtains.

Description

Electric window curtain control device

The utility model belongs to daily-use electrical appliance.

Before the utility model is made, mainly form as the electrically driven curtain of power supply by gear, transmission mechanism and electrical equipment and electrical control system with electric main.Used motor is broadly divided into two kinds: a kind of is alternating current generator, adopts the single-phase capacitance formula more, the cost height of this motor, thereby the cost of electrically driven curtain is also high, extensively popularization and application has certain difficulty.Another kind is a direct current generator.The small low-voltage direct current generators that adopt by electric main power supply behind repoussage stream more.The related use electric main of " electrically driven curtain of an a knob operation " literary composition that the prior art of this respect is carried as " electronics newspaper " the 41st periodical in 1984.The electrically driven curtain that is driven by the small low-voltage direct current generator is exactly an example.This electrically driven curtain has adopted the relay of many winding points to finish the electric power polarity conversion in order to solve the motor positive and inverse problem, and this just makes the cost of the electrical equipment and electrical control system of electrically driven curtain increase, complex circuit, so fault rate increases relatively.Because its starting switch and the limit switch position that is installed in several apart from each others respectively, it is longer to connect lead again, gives to install and use and all make troubles.At the deficiency of above prior art, the utility model solves these problems technically.

The purpose of this utility model provides and does not a kind ofly use that relay is low as control element, cost, simple structure, be convenient to install, control is reliable, do not have the electrically driven curtain with common manual curtain characteristic of external control lead except that power line.

Fig. 1 is the electrical schematic diagram of the electrical equipment and electrical control system of electrically driven curtain.

Fig. 2 is the structural representation of gear, transmission mechanism and the electrical equipment and electrical control system of electrically driven curtain.Wherein (1) (2) are limit switch, and (3) are starting switch, (4) power supply vertoro, and (5) motor, (6) gear, (7) support, (8) shell, (9) driving wheel, (10) hauling rope,

Fig. 3 is the position view of electrically driven curtain limit switch and hauling rope.

Fig. 4 is electrically driven curtain transmission mechanism and limit-switch positions schematic diagram.Wherein except that Fig. 2 indicated, (11) be that driven pulley (12) (13) is the limit switch contact block.

Fig. 5 is electrically driven curtain starting switch, limit switch installation site schematic diagram.

Fig. 6 is electrically driven curtain starting switch, limit switch structural representation.

Fig. 7, Fig. 8 are electrically driven curtain integral installation schematic diagram.

The utility model electrically driven curtain is by gear (6), transmission mechanism (9) (10) (11). Electrical equipment and electrical control system (1) (2) (3) (4) (5) (12) (13), support (7) and shell (8) form. Its control principle and the course of work are as follows: electric main is through a winding point input power vertoro (4) of limit switch (1) and starting switch (3), the low-voltage DC that conversion goes out is through another winding point input motor (5) of starting switch (3), motor (5) is rotated, power is passed to driving wheel (9) through gear (6), drive hauling rope (10) motion, when moving to spacing position, limit switch contact block (12) promotes the tactile handle of limit switch (1), the normally closed point of limit switch (1) is disconnected, cut off the Alternating Current Power Supply electric current and make motor (5) stall. At this moment electrically driven curtain closure. It is then identical with the said process principle to stir starting switch (3), motor (5) counter-rotating, and electrically driven curtain resets.

The main points of the utility model electrically driven curtain are that its electrical equipment and electrical control system is to have adopted double-point double-throw switch as starting switch, control by electric main with and step-down rectifier after the symmetric double polarity dc source that obtains, reach the effect of control motor steering, structurally starting switch and limit switch all are installed on the same support simultaneously, shortened the length of pilot to greatest extent, utilize limit switch to touch handle and hauling rope all in same plane again, the method to set up that hauling rope passes the handle from touching of two limit switches has respectively solved the problem that the limit switch installation disperses in the prior art.In addition, starting switch structure of the present utility model is the DPDT pull switch, not only saved the external switch lead, and pull switch makes the utility model keep the stay cord characteristic of common manual curtain.

In sum, it is low to the utlity model has cost, and simple structure is easy for installation, and control is reliable, does not have the advantage of external pilot, in addition, has also kept the stay cord characteristic of common manual curtain, especially is adapted to family, extensively popularization and application in the hotel.

Below, by means of Figure of description one specific embodiment is elaborated.

Limit switch among the embodiment (1) (2) is the reed contact normally closed switch, starting switch (3) is the DPDT pull switch, power supply vertoro (4) is the power transformer of 5W with 220V/8V * 2 power, 2 compositions of the electrolytic capacitor that 4 of 2CP type commutation diodes and 1000 microfarads are withstand voltage 16 volts.Motor (5) model is 28ZY02, and gear is a double reduction, is made of balata belt and plastic belt pulley.Speed ratio is 40:1.Shell (8) is the plastic hot injection forming.Hauling rope is the strands nylon rope.Driven pulley (11) is made for plastics.Through same driving wheel (9), limit switch contact block (12) (13) is made the garden sphere by duroplasts outward, and there is a hole at the center, and hauling rope therefrom passes, is glued fixing.

Claims

1, electrically driven curtain, by gear (6), transmission mechanism (9) (10) (11), electrical equipment and electrical control system (1) (2) (3) (4) (5) (12) (13), support (7) and shell (8) are formed, it is characterized in that starting switch (3) is a double-point double-throw switch, control the DC voltage polarity of the output of the break-make of electric main input and power supply vertoro (4) respectively, thus the rotation direction of control motor (5).Limit switch (1) (2) touch handle and hauling rope (10) in same plane, hauling rope (10) passes the handle that touches of limit switch (1) (2) respectively.Be fixed with limit switch contact block (12) (13) on the hauling rope (10).

2, by the described electrically driven curtain of claim 1, it is characterized in that starting switch (3) is the dragline type double-point double-throw switch, is installed on the support (7).

3, by the described electrically driven curtain of claim 1, it is characterized in that limit switch (1) (2) is the reed contact normally closed switch, is installed on the support (7).