Appratus for driving the up and down movement of electric blinds using up and down band

Abstract

The present invention relates to a window system incorporating an electric blind, wherein the blind is provided internally and a lifting / lowering band type member is applied to the blind, and to a technology for controlling motor operation by detecting the position of the blind. Specifically, the device of the present invention comprises: a cylindrical member (110) that receives rotational force from a motor and rotates in forward and reverse directions; two ring members (130, 140) that are spaced apart at a predetermined distance from the outer surface of the cylindrical member and protrude radially to form a winding portion (120) between them; a lifting band (150) having a width of a certain size, wound around the winding portion of the cylindrical member, and having its lower end connected to the blind to control the lifting / lowering of the blind; and a control unit that controls the rotational speed and amount of rotation of the motor; wherein the control unit detects the degree to which the lifting band is wound around the winding portion and controls the rotational speed and amount of rotation of the motor based on this, thereby enabling stable lifting / lowering of the blind.

Description

Technology Field

[0001] The present invention relates to a driving device for raising and lowering an electric blind using a lifting band, and to a technology that enables stable and accurate control of the amount of raising and lowering of the electric blind. Background Technology

[0002] Recently, double-pane windows, which are fixed to a frame with two glass panes spaced apart to improve thermal and sound insulation, are widely used in window systems by forming an air layer or creating a vacuum between the panes. Additionally, windows that perform light blocking by embedding an electric blind inside the double-pane window are being introduced. In this case, the up-and-down movement of the blind can be controlled by the user manually operating a switch or through communication with a control terminal such as a smartphone. Furthermore, the up-and-down movement of the blind can also be controlled via voice using voice recognition technology.

[0003] Double-glazed windows with built-in motorized blinds of this structure include Public Patent 10-2013-0065519 (Title: Double window with built-in blinds).

[0004] According to the prior art described above, a double window with a built-in blind comprises a pair of glass plates (3) that have a space (2) formed inside with a gap between them by a frame (1), a blind (7) having a plurality of wings (6) provided in the space (2) that are folded or unfolded vertically by the release and pull of an inclination adjustment cord (4) and the release and pull of a height adjustment cord (5), and a control unit (12) that controls them.

[0005] In the prior art, the blind slats move up and down as a string that controls the vertical movement of the blind slats is wound around a cylindrical member. Referring to FIG. 2, if we look closely at the winding of the string for controlling the height of the blind, it consists of a string (10) connected to the blind slats and a cylindrical member (20) around which the string is wound. As the cylindrical member rotates in forward and reverse directions by a motor, the string is wound or unwound. However, since the string (10) is wound only at a certain position on the cylindrical member, as shown in FIG. 2, the string is wound again on top of the wound string, causing the string to bunch up and be wound (part indicated by 30). As a result, there is a change in the diameter of the part where the string is wound. This interferes with the adjustment of the blind height.

[0006] This is because the amount of raising and lowering of the thread is controlled according to the amount of rotation of the cylindrical member by the motor rotation, but as shown in Fig. 2, due to the phenomenon of the thread clumping on the cylindrical member, it is not easy to determine the degree of raising and lowering of the blind according to the rotation of the cylindrical member, and therefore it is difficult to accurately control the opening and closing of the blind.

[0007] In addition, in conventional technology, limit switches are generally placed in window systems to stop the motor operation when the blind is positioned at the top or bottom. However, as the motor rotation stops abruptly, noise is generated in the device, and repeated impacts are transmitted to the blind winding device during the sudden stopping process, which leads to a problem of reduced durability. In the case of built-in motorized blinds embedded between double-pane glass, repairs are expensive, so it is necessary to improve durability as much as possible. Prior art literature

[0008] Published Patent 10-2013-0065519: Double-pane window with built-in blind The problem to be solved

[0009] The present invention aims to provide a technology that enables stable and accurate control of the amount of raising and lowering of a blind as a device for raising and lowering an electric blind, and also enables the detection of the degree of raising and lowering of the blind by detecting the position of the band driving the blind, thereby accurately controlling the amount of raising and lowering of the blind.

[0010] In addition, the purpose is to reduce noise during use and improve the durability of the lifting band winding part by ensuring that the speed of the motor that raises and lowers the blind does not fluctuate rapidly and operates smoothly. means of solving the problem

[0011] The present invention relates to a window system with an integrated electric blind, wherein a blind provided inside utilizes a lifting / lowering band-type member, and to a technology for controlling motor operation by detecting the position of the blind.

[0012] Specifically, the device of the present invention comprises: a cylindrical member (110) that receives rotational force from a motor and rotates in forward and reverse directions; two ring members (130, 140) that are spaced apart at a predetermined distance from the outer surface of the cylindrical member and protrude radially to form a winding portion (120) between them; a lifting band (150) having a width of a certain size, wound around the winding portion of the cylindrical member, and having its lower end connected to a blind to control the raising and lowering of the blind; and a control unit that controls the rotational speed and amount of rotation of the motor; wherein the control unit detects the degree to which the lifting band is wound around the winding portion and controls the rotational speed and amount of rotation of the motor based thereon, thereby enabling stable raising and lowering of the blind.

[0013] The lifting band may further include a plurality of first to Nth identification markers (152, 154, 156) arranged at regular intervals in the vertical direction; and a sensor member (135) provided on the ring member and detecting the first to Nth identification markers.

[0014] The first to Nth identification markers above are magnets applied to the surface of the lifting band having different magnetic properties, and the sensor member can detect the magnetic properties of the magnets.

[0015] The present invention may also be a control method for controlling the driving device, comprising: a first step in which the sensor member detects any one of the first to N identification marks; a second step in which the information detected by the sensor member in the first step is transmitted to a control unit; and a third step in which the control unit determines the degree to which the lifting band is wound on the winding part and adjusts the speed of the motor based on the transmitted information.

[0016] In the above 2nd step, when the sensor member detects the Nth identification mark located at the bottom among the 1st to Nth identification marks, in the above 3rd step, the control unit reduces the speed of the motor to a low speed to implement a smooth deceleration stop, thereby reducing noise and improving the durability of the device. Effects of the invention

[0017] The present invention, by means of the above structure, utilizes a lifting control band to collect data regarding the degree of lifting and lowering of the motorized blind and the degree to which the lifting control band is wound onto a winding member, and thereby enables the accurate and stable control of the amount of lifting and lowering of the motorized blind using this data.

[0018] Furthermore, the present invention solves the problem of reduced durability caused by repetitive impact transmitted to the winding device when the blind reaches the top and comes to a sudden stop, thereby allowing the motor to stop smoothly before the blind reaches the top, and improves the durability of the built-in blind window frame along with noise reduction. Brief explanation of the drawing

[0019] FIG. 1 is an overall view of an electric blind window according to the prior art, and Figure 2 shows the winding of a thread for controlling the lifting of a blind according to the prior art. FIG. 3 is a view of a cylindrical member in which a band is wound in an electric blind lifting and lowering drive device according to the present invention, and FIGS. 4 and 5 are a front view and a side cross-sectional view showing a lifting / lowering band wound around a winding cylinder member according to the present invention, and FIG. 6 is a partial view of a blind with a lifting / lowering band applied according to the present invention, and FIG. 7 is an exemplary view of an electric blind window system according to the present invention. Specific details for implementing the invention

[0020] The objects, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings. Additionally, the terms used are defined with respect to their functions in the present invention, which may vary according to the user's intent or practice. Therefore, the definitions of these terms should be based on the content throughout this specification.

[0021] In addition, when describing the components of the present invention, different reference numerals may be assigned to components with the same name depending on the drawing, and the same reference numeral may be assigned even if they are different drawings. However, even in such cases, this does not mean that the components have different functions depending on the embodiment, or that they have the same function in different embodiments, and the function of each component should be determined based on the description of each component in the corresponding embodiment.

[0022] Furthermore, technical terms used in this specification shall be interpreted in the sense generally understood by those skilled in the art to which the present invention pertains, unless specifically defined otherwise in this specification, and shall not be interpreted in an overly broad or overly narrow sense. Additionally, singular expressions used in this specification include plural expressions unless the context otherwise indicates.

[0023] FIG. 3 is a view of a cylindrical member in which a band is wound in an electric blind lifting / lowering drive device according to the present invention, FIG. 4 and FIG. 5 are a front view and a side cross-sectional view of a lifting / lowering band wound on a wound cylindrical member according to the present invention, and FIG. 6 is a partial view of a blind to which a lifting / lowering band according to the present invention is applied.

[0024] The present invention will be described in detail below with reference to the attached drawings.

[0025] Specifically, the electric blind lifting and lowering drive device of the present invention is provided with a cylindrical member (110) that receives rotational force from a separately provided motor and rotates in forward and reverse directions, and a blind that blocks sunlight is placed at the bottom of the cylindrical member. A lifting band (150) connected to the blind to raise or lower the blind is provided. One of the features of the present invention is that the lifting band is a band type having a predetermined width, which improves upon the conventional thread structure. That is, the lifting band (150) has a width of a certain size and is wound around the winding portion of the cylindrical member, and its lower end is connected to the blind to control the raising and lowering of the blind.

[0026] Additionally, on the outer surface of the cylindrical member (110), two ring members (130, 140) are provided that protrude radially and are spaced apart at a predetermined distance corresponding to the width of the lifting band. The space between the two ring members (130, 140) on the outer surface of the cylindrical member is called the winding section (120), where the lifting band is wound. Raising and lowering the blind is accomplished by the lifting band (150) being wound or unwound from the cylindrical member, and this is achieved by rotating the motor in the forward and reverse directions. Additionally, a control unit is provided to control the rotational speed and amount of rotation of the motor.

[0027] In the case of conventional technology, the structure was such that a thread was wound around a cylindrical member to control the lifting and lowering of the blind. However, since the thread wound around the cylindrical member became tangled and bunched up at a specific location, it was difficult to adjust the height of the blind. The present invention solves this by changing it to a band type.

[0028] In other words, the lifting band of the present invention is wound only at the winding section without leaving the winding section by the two ring members (130, 140), thereby enabling uniform winding. Additionally, by considering the degree to which the lifting band is wound at the winding section, the degree to which the blind is raised can be clearly determined. Looking at FIG. 5, the value indicated by R represents the radius from the center of the winding section (120) to the lifting band (150) located at the outermost edge. Once this radius (R) is known, the degree to which the lifting band is wound at the cylindrical member can be accurately calculated by the formula "lifting band lifting distance = radius (R) x winding section rotation angle" by considering the amount of rotation of the cylindrical member. Through this, the degree of lifting and lowering of the blind is accurately determined, and the upper and lower positions of the blind can be accurately controlled.

[0029] Additionally, referring to FIG. 4, a plurality of first to Nth identification marks (152, 154, 156) arranged at regular intervals in the vertical direction may be placed on the lifting band (150) of the present invention. The identification marks may be specific patterns or colors displayed on the surface of the lifting band, or they may be magnetic. Furthermore, a sensor member (135, 145) for detecting the first to Nth identification marks may be located on the ring member (130, 140) of the cylindrical member or on the winding member (120). When the cylindrical member rotates by a motor, the lifting band moves upward and is wound onto the winding member. At this time, the first to Nth identification marks provided on the lifting band are also wound onto the winding member.

[0030] In this process, the sensor member (135, 145) detects the identification mark, and through this, the control unit detects the position of the blind (degree of upward or downward movement). Then, the control unit can control the operation by considering the current position of the blind during the process of raising or lowering the blind. In the conventional case, when an operation signal is received without considering the current position of the blind, the blind moves to the top or bottom, and the limit switch determines whether it has reached the top or bottom. However, since the control unit recognizes the current position of the blind in the present invention, it becomes possible to control the blind to rise or fall only by a certain amount, rather than to the top or bottom. The magnetic material is coated on the surface of the lifting band having different magnetic properties, and the sensor member can detect the magnetic properties of the magnetic material.

[0031] The present invention can also control the driving device in a way that the blind’s upward and downward movement operates smoothly without generating noise, comprising: a first step in which the sensor member detects any one of the first to N identification marks; a second step in which the information detected by the sensor member in the first step is transmitted to a control unit; and a third step in which the control unit determines the degree to which the lifting band is wound on the winding part and adjusts the speed of the motor based on the transmitted information.

[0032] In the above 2nd step, when the sensor member detects the Nth identification mark located at the bottom among the 1st to Nth identification marks, in the above 3rd step, the control unit reduces the speed of the motor to a low speed to implement a smooth deceleration stop, thereby reducing noise and improving the durability of the device. Also, when the blind reaches the top, the limit switch detects this and stops the operation of the motor.

[0033] In conventional systems, the blind rises at a constant speed and then comes to a sudden stop the moment it reaches the top, causing repeated impacts to the blind winding device, which resulted in shock noise and reduced durability. However, the present invention reduces noise and improves durability through such control.

[0034] FIG. 7 is an exemplary view of an electric blind window system equipped with a winding member according to the present invention. In the electric blind window system of the present invention, two electric blind lifting and lowering drive devices (100-1, 100-2) are arranged on the left and right sides, and they are connected to each other by a connecting rod (200) and operate together. Additionally, a separate limit switch (L) that detects whether the motor (M) driving the cylindrical member of the electric blind has arrived at the top of the blind and stops the motor may be arranged on the other side where the motor (M) driving the cylindrical member of the electric blind is located on one side.

[0035] Embodiments of the present invention include a computer-readable medium comprising program instructions for performing operations implemented by various computers. This medium records a program for executing the method described above. This medium may include program instructions, data files, data structures, etc., either alone or in combination. Examples of such media include magnetic media such as hard disks, floppy disks, and magnetic tapes; optical recording media such as CDs and DVDs; floptical disks and magneto-optical media; and hardware devices configured to store and execute program instructions, such as ROM, RAM, and flash memory. Examples of program instructions include machine code, such as that generated by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc.

[0036] The present invention, by means of the above structure, utilizes a lifting control band to collect data regarding the degree of lifting and lowering of the motorized blind and the degree to which the lifting control band is wound onto a winding member, and thereby enables the accurate and stable control of the amount of lifting and lowering of the motorized blind using this data.

[0037] Furthermore, the present invention solves the problem of reduced durability caused by repetitive impact transmitted to the winding device when the blind reaches the top and comes to a sudden stop, thereby allowing the motor to stop smoothly before the blind reaches the top, and improves the durability of the built-in blind window frame along with noise reduction.

[0038] Although preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention as defined in the following claims also fall within the scope of the present invention.

Claims

Claim 1 An electric blind lifting and lowering drive device using a lifting band, comprising: a cylindrical member (110) that receives rotational force from a motor and rotates in forward and reverse directions; two ring members (130, 140) that are spaced apart at a predetermined distance from the outer surface of the cylindrical member and protrude radially to form a winding portion (120) between them; a lifting band (150) having a width of a certain size, wound around the winding portion of the cylindrical member, and having its lower end connected to the blind to control the lifting and lowering of the blind; and a control unit that controls the rotational speed and amount of rotation of the motor; wherein the control unit detects the degree to which the lifting band is wound around the winding portion and controls the rotational speed and amount of rotation of the motor based thereon, thereby enabling stable lifting and lowering of the blind. Claim 2 An electric blind lifting and lowering drive device using a lifting band, characterized in that, in claim 1, the lifting band further comprises a plurality of first to N identification markers (152, 154, 156) arranged at regular intervals in the vertical direction; and a sensor member (135, 145) provided on the ring member and detecting the first to N identification markers. Claim 3 An electric blind lifting and lowering drive device using a lifting band, characterized in that, in paragraph 2, the first to N identification marks are magnets coated on the surface of the lifting band having different magnetic properties, and the sensor member detects the magnetic properties of the magnets. Claim 4 A method for controlling the driving device of claims 2 and 3, comprising: a first step in which the sensor member detects any one of the first to N identification marks; a second step in which the information detected by the sensor member in the first step is transmitted to a control unit; and a third step in which the control unit determines the degree to which the lifting band is wound on the winding part and adjusts the speed of the motor based on the transmitted information. Claim 5 A method for controlling the raising and lowering of an electric blind according to claim 4, wherein in step 2, when the sensor member detects the Nth identification mark located at the bottom among the 1st to Nth identification marks, in step 3, the control unit reduces the speed of the motor to a low speed.

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