KR20160053210A - Wire protecting device of electric blind - Google Patents

Abstract

The present invention relates to an apparatus for protecting a wire of an electric blind capable of preventing damage to an opening and closing wire and, more specifically, to an electric blind including a remote control and a remote control receiving unit. The apparatus for protecting a wire of an electric blind comprises: a main control unit controlling an operation of an electric blind in accordance with a key input transmitted through the remote control; a motor control unit controlling rotation by supplying a current to a rotation motor in accordance with a control signal of the main control unit; and an overcurrent detecting unit outputting an overcurrent detected signal by detecting whether an overcurrent is supplied to the rotation motor. The main control unit controls the motor control unit so that the rotation motor is rotated backward for a predetermined time when an overcurrent detected signal is output from the overcurrent detection unit. The predetermined time is 0.5 sec. The overcurrent is detected by the overcurrent detecting unit when a blind vane is completely moved in an upper direction due to forward rotation of the rotation motor.

Description

Technical Field [0001] The present invention relates to a wire protecting device for an electric blind,

The present invention relates to a wire protecting apparatus for an electric blind, and more particularly, to a wire protecting apparatus for an electric blind, and more particularly to a wire protecting apparatus for a blind wing, And more particularly, to a wire protecting apparatus for an electric blind which prevents damages of an opening / closing wire caused by transmission.

Generally, curtains or blinds are used as a means to protect privacy and to maintain room temperature in the windows of a residential or office space, and curtains or blinds are used as a whole or in part when necessary.

The blinds may be opened or closed in a vertical or horizontal direction, and the degree of blindness of the blinds may be controlled by the user in accordance with the opening and closing directions.

On the other hand, in the conventional manual blind, when the blind is opened or the angle is adjusted, the user has to manually operate the adjusting strap or the adjusting lever provided on the blind.

In order to solve such an inconvenience, an electric blind operated by a remote control operation has been developed and used. As for the operation of the electric blind, the user selects the up, down and stop function keys provided on the remote controller to open and close the blind.

That is, when the user selects the up key provided on the remote controller to open the electric blind, the rotary motor is rotated in the forward direction to move the blind blade in the upward direction to perform the opening operation, When the key is selected, an operation is performed in which the rotating motor is rotated in the reverse direction to move the electric blind blade in the downward direction.

At this time, all of the electric blind blades are moved upward, and the rotational force of the rotating motor continues to be transmitted to the opening / closing wire for moving the blind blade upward in the state that the opening is completed, .

Korean Patent Publication No. 10-2004-0047247 (published on June 05, 2004)

SUMMARY OF THE INVENTION The present invention has been made in order to overcome the above-mentioned problems, and it is an object of the present invention to provide an electric motor, Which is transmitted to an opening / closing wire for moving the blind wing upward in the upward direction, thereby preventing damage of the opening / closing wire.

According to another aspect of the present invention, there is provided an electric blind having a remote control and a remote control receiving unit, wherein the operation of the electric blind is controlled in response to a key input transmitted through the remote control, And an overcurrent detecting unit for detecting whether an overcurrent is supplied to the rotating motor and outputting an overcurrent detecting signal, wherein the overcurrent detecting unit includes: And the main control unit controls the motor control unit so that the rotation motor is operated to rotate reversely for a predetermined time when the overcurrent detection signal is outputted from the overcurrent detection unit.

The predetermined time of the present invention is 0.5 sec.

The overcurrent detection of the overcurrent detecting unit of the present invention is characterized in that the overcurrent detection of the overcurrent detecting unit is detected in a state where the blind vane is completely moved in the upward direction by the forward rotation of the rotating motor.

As described above, in the technical problem solving pursued by the present invention, when an overcurrent is detected in the rotating motor during the opening operation of the electric blind, the operation of the rotating motor is controlled to be stopped by reversing the operation for a predetermined time, There is an advantage that strong tension can be prevented from being generated in the opening / closing wire due to the overcurrent of the rotating motor.

1 is a block diagram schematically showing a wire protecting apparatus of an electric blind according to the present invention.
2 is an exemplary view showing an operation state of the wire protecting apparatus according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Further, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be practiced by those skilled in the art.

1 is a block diagram schematically showing a wire protecting apparatus of an electric blind according to the present invention.

1, a wire protecting apparatus for an electric blind according to a preferred embodiment of the present invention includes a separate remote control 1 operated by a user, a remote control receiving unit 2 for receiving a transmission signal of the remote control 1 A main control unit 3 for controlling the overall operation of the electric blind and controlling the operation of the electric blind according to a key input transmitted through the remote control 1, A motor control unit 5 for supplying a current to the motor 4 to control the rotation operation and an overcurrent detection unit 6 for detecting whether an overcurrent is supplied to the rotation motor 4 and outputting an overcurrent detection signal, When the overcurrent detection signal is output from the overcurrent detection unit 6, the unit 3 controls the motor control unit 5 to rotate the rotation motor 4 for a predetermined period of time, for example, for 0.5 seconds. Here, the predetermined time can be adjusted according to the size of the electric blind and the use environment.

The overcurrent detecting condition of the overcurrent detecting unit 6 is detected under the condition that the blind wing is completely moved in the upward direction by the forward rotation of the rotating motor 4 and is determined according to the size of the electric blind and the use environment Various conditions can be set.

The remote controller 1 transmits a function selection signal corresponding to a key input selected by the user, for example, up, down, stop and the like. Here, when the blinds are stopped, if the user presses the up key or the down key for a long time, the blind operation is performed, and the up and down keys are pressed briefly, When the button is pressed in succession, the angle of the blind wing is adjusted.

The remote control receiver 2 receives the function selection signal transmitted from the remote controller 1 and transmits the received function selection signal to the main controller 3. The main controller 3 determines whether the Up or Down key is selected , The motor control unit 5 is controlled to control the rotation motor 4 to operate.

The overcurrent detecting unit 6 detects whether the current supplied to the rotating motor 4 is an overcurrent through the motor control unit 5 and outputs an overcurrent detecting signal. The overcurrent detecting condition is, for example, The condition that the blind wing is completely moved in the upward direction by the forward rotation of the rotary motor 4 and the condition in which the blind wing is caught by another object in a state in which the blind wing is being opened to move upward, It is preferable that the case where the user does not move and the case where the user unintentionally pulls the blind wing to be moved.

The operation of the wire protection device according to the present invention will now be described.

2 is an exemplary view showing an operation state of the wire protecting apparatus according to the present invention.

First, an external configuration of the electric blind according to the present embodiment will be described. In the housing 10, an opening / closing shaft (not shown) is provided which is rotated by a rotating operation of a rotary motor installed at one end.

An opening / closing wire 14 for raising / lowering the blind blade 12 is connected to the inside of the housing 10 so as to be wound or unwound on the opening / closing shaft.

The opening and closing wire 14 wound on the opening and closing shaft is inserted along the hole 15 at the center of the blind blade 12 to be installed so as to raise and lower the blind blade 12 effectively.

As shown in FIG. 2, the electric blind according to the present invention having the above-described structure is configured such that when the electric blind is installed in the window, the blind blade is moved up and down by using the remote controller 1, The amount of incident light of the external light can be adjusted.

When the user presses the UP key through the remote controller 1, the main controller 3 controls the motor controller 5 to rotate the rotary motor 4 in the forward direction so that the blind wing moves upward Open.

The blind wing is completely moved in the upward direction by the forward rotation of the rotary motor 4 and is in the open state or in the state where the blind wing is moved in the upward direction, An overcurrent is supplied to the rotary motor 4 through the motor control unit 5 for reasons such as when the user unintentionally pulls the blind wing which is moved inadvertently.

At this time, the overcurrent detecting unit 6 detects whether the current supplied to the rotating motor 4 is an overcurrent through the motor control unit 5 and outputs an overcurrent detecting signal.

When the overcurrent detection signal is output from the overcurrent detection unit 6, the main control unit 3 controls the motor control unit 5 so that the rotation motor 4 is controlled to rotate for a predetermined period of time, for example, do. Here, the predetermined time can be adjusted according to the size of the electric blind and the use environment.

As described above, according to the present invention, when an overcurrent is detected in the rotary motor during the opening operation of the electric blind, the operation of the rotary motor is controlled to be stopped by reversing the operation for a predetermined period of time, It is possible to prevent a strong tension from being generated on the opening / closing wire.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings .

The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

1: Remote control 2: Remote control receiver
3: main control part 4: rotation motor
5: motor control unit 6: overcurrent detection unit
10: housing 12: blind wing
14: opening / closing wire 15: hole

Claims (3)

In an electric blind having a remote control and a remote control receiver,
A main controller for controlling the operation of the electric blind according to the key input transmitted through the remote controller,
A motor control unit for supplying a current to the rotary motor in accordance with the control signal of the main control unit to control the rotation operation;
And an overcurrent detecting unit for detecting whether an overcurrent is supplied to the rotating motor and outputting an overcurrent detecting signal,
Wherein when the overcurrent detection signal is output from the overcurrent detection unit, the main control unit controls the motor control unit to rotate the rotation motor for a predetermined period of time.
The method according to claim 1,
Wherein the predetermined time is 0.5 sec.
3. The method according to claim 1 or 2,
Wherein the overcurrent detection of the overcurrent detection unit is detected in a state in which the blind blade is completely moved in the upward direction by the forward rotation of the rotation motor.

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