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KR-102963768-B1 - Opening and closing apparatus for electric windows with power blocking function

KR102963768B1KR 102963768 B1KR102963768 B1KR 102963768B1KR-102963768-B1

Abstract

The present invention relates to an electric window opening and closing device having a power cutoff function, wherein the device enables not only automatic opening and closing of the blade by driving a forward/reverse motor, but also manual opening and closing of the blade by a user through manual operation using a handle by cutting off power transmission by a clutch unit. The present invention relates to an electric window opening and closing device that is installed on one side of the interior of a window frame (2) of an electric window (1) and moves up and down a vertical bar (7) on one side of a connecting member (5) connected to a plurality of blades (3) to rotate the blades (3) all at once to open and close a passage, comprising: a housing (10) coupled to one side of the interior of the window frame (2); a forward/reverse motor (15) provided on one side of the interior of the housing (10); and a reduction gear unit (20) that is gear-connected to the drive shaft of the forward/reverse motor (15) and is composed of a plurality of gears to reduce and transmit power. A clutch unit (30) configured to be rotatably connected to the driving gear (21) and the driven gear (23) among the gears constituting the reduction gear unit (20) by a central part connected to a rotation shaft (32) to transmit power when the forward/reverse motor (15) is in a forward rotation operation, and disconnects power when the gear connection with the driven gear (23) is released when the forward/reverse motor (15) is in a reverse rotation operation; a manual rotation gear (40) configured to be rotatably connected to the driven gear (23) on the other side of the interior of the housing (10), with a handle coupling hole (41) formed in the center; and a handle (45) configured to be installed on the outside of the window frame (2), penetrates one side of the housing (10), is inserted into the handle coupling hole (41), and manually rotates the manual rotation gear (40) in a clockwise or counterclockwise direction. It comprises: an opening/closing guide (50) having one longitudinal side connected to the manual rotating gear (40) so as to be moved up and down by the clockwise or counterclockwise rotation of the manual rotating gear (40), and having a connecting shaft (51) protruding from the other longitudinal side that is coupled to one side of the vertical bar (7); an operating button unit (55) that provides a driving signal to turn the forward/reverse motor (15) ON and drive it in a clockwise or counterclockwise direction to rotate the blade (3) to open and close the passage; and a motor control unit (60) that, according to the driving signal of the operating button unit (55), operates the forward/reverse motor (15) in the corresponding direction for a preset time or number of rotations, and then operates it in the opposite direction for a predetermined number of rotations.

Inventors

  • 이상일

Dates

Publication Date
20260511
Application Date
20250729

Claims (4)

  1. In an electric window opening and closing device that is installed on one side of the window frame (2) of an electric window (1) and moves up and down a vertical bar (7) on one side of a connecting member (5) connected to a plurality of blades (3) to rotate the blades (3) all at once to open and close a passage, A housing (10) coupled to one side of the interior of the above window frame (2) via a fixing bracket (12); A forward/reverse motor (15) provided on one side inside the housing (10); A reduction gear unit (20) that is gear-connected to the drive shaft of the above-mentioned forward/reverse motor (15) and is composed of a plurality of gears to reduce and transmit power; A clutch unit (30) configured to be rotatably connected to a rotation shaft (32) in a state between the driving gear (21) and the driven gear (23) among the gears constituting the reduction gear unit (20), and which transmits power by being gear-connected to the driven gear (23) during the forward rotation operation of the forward/reverse motor (15), and cuts off power by releasing the gear connection state with the driven gear (23) during the reverse rotation operation of the forward/reverse motor (15); A manual rotary gear (40) is provided to be rotatably connected to the driven gear (23) on the inner side of the housing (10), and has a handle coupling hole (41) formed in the center; A handle (45) that is provided on the outside of the window frame (2), penetrates one side of the housing (10), is inserted into the handle coupling hole (41), and manually rotates the manual rotation gear (40) in a clockwise or counterclockwise direction; An opening/closing guide (50) is provided between the housing (10) and the fixed bracket (12), and a gear formed on one side is gear-connected to the manual rotating gear (40) so as to be moved up and down by the clockwise or counterclockwise rotation of the manual rotating gear (40), and a connecting shaft (51) protrudes on one side in the longitudinal direction to be coupled with one side of the vertical bar (7) to move the vertical bar (7) up and down; An operating button unit (55) that provides a driving signal to turn on the above-mentioned forward/reverse motor (15) to drive in a clockwise or counterclockwise direction, thereby rotating the blade (3) to open and close the passage; The motor control unit (60) operates the forward/reverse motor (15) in the corresponding direction for a preset time or number of rotations according to the driving signal of the above-mentioned operation button unit (55), and then operates it in the opposite direction for a predetermined number of rotations in the reverse direction. The above clutch part (30) comprises a guide gear (31) that is installed to rotate by being gear-connected to the driving gear (21) or a connecting gear (22) that is gear-connected to the driving gear (21) while being fixed to the housing (10) by a rotating shaft (36); A transmission gear (33) integrally formed in the central part of the guide gear (31) and rotates in the same direction together with the guide gear (31); A rotating bracket (35) is provided such that two plates are spaced apart from each other to form an internal space, and the central portion of one or more of the two plates is rotatably installed to pass through the transmission gear (33); A clutch gear (37) is coupled to the inside of both sides of the rotating bracket (35) by a fixed shaft (36), and is provided such that a gear formed on the rim portion is connected to the transmission gear (33) to rotate; It is composed of an elastic spring (39) that is installed between one inner side of the rotating bracket (35) and the clutch gear (37) while penetrating the fixed shaft (36), and presses the clutch gear (37) with elastic force to press against the other inner side of the rotating bracket (35). The above clutch gear (37) is rotated by the rotation of the above transmission gear (33), and rotates the above rotation bracket (35) by a predetermined angle in the direction of formation of the above driven gear (23), and then is connected to the above driven gear (23) to transmit power of the above forward/reverse motor (15), thereby having an electric window opening/closing device having a power cutoff function.
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  3. In paragraph 1, An electric window opening and closing device having a power cutoff function, characterized in that when one of the two clutch gears installed on both sides of the rotating bracket (35) is gear-connected to the manual rotating gear (40), the other clutch gear installed on the opposite side comes into contact and rotates, thereby supporting the rotating bracket (35) so as not to move.
  4. In an electric window opening and closing device that is installed on one side of the window frame (2) of an electric window (1) and moves up and down a vertical bar (7) on one side of a connecting member (5) connected to a plurality of blades (3) to rotate the blades (3) all at once to open and close a passage, A housing (10) coupled to one side of the interior of the above window frame (2) via a fixing bracket (12); A forward/reverse motor (15) provided on one side inside the housing (10); A reduction gear unit (20) that is gear-connected to the drive shaft of the above-mentioned forward/reverse motor (15) and is composed of a plurality of gears to reduce and transmit power; A clutch unit (30) configured to be rotatably connected to a rotation shaft (32) in a state between the driving gear (21) and the driven gear (23) among the gears constituting the reduction gear unit (20), and which transmits power by being gear-connected to the driven gear (23) during the forward rotation operation of the forward/reverse motor (15), and cuts off power by releasing the gear connection state with the driven gear (23) during the reverse rotation operation of the forward/reverse motor (15); A manual rotary gear (40) is provided to be rotatably connected to the driven gear (23) on the inner side of the housing (10), and has a handle coupling hole (41) formed in the center; A handle (45) that is provided on the outside of the window frame (2), penetrates one side of the housing (10), is inserted into the handle coupling hole (41), and manually rotates the manual rotation gear (40) in a clockwise or counterclockwise direction; An opening/closing guide (50) is provided between the housing (10) and the fixed bracket (12), and a gear formed on one side is gear-connected to the manual rotating gear (40) so as to be moved up and down by the clockwise or counterclockwise rotation of the manual rotating gear (40), and a connecting shaft (51) protrudes on one side in the longitudinal direction to be coupled with one side of the vertical bar (7) to move the vertical bar (7) up and down; An operating button unit (55) that provides a driving signal to turn on the above-mentioned forward/reverse motor (15) to drive in a clockwise or counterclockwise direction, thereby rotating the blade (3) to open and close the passage; The motor control unit (60) operates the forward/reverse motor (15) in the corresponding direction for a preset time or number of rotations according to the driving signal of the above-mentioned operation button unit (55), and then operates it in the opposite direction for a predetermined number of rotations in the reverse direction. The above connecting member (5) comprises a pivot member (6) in which the shafts of a plurality of blades (3), which are provided inside a vertical frame on one side of the window frame (2) and installed at regular intervals, are inserted into the center and connected, and both ends are fixed to each of a pair of vertical bars (7); It is composed of a pair of vertical bars (7) that are spaced apart from each other in the vertical direction inside one side of the vertical frame of the above window frame (2) and fixed to both ends of a plurality of pivoting pieces (6) by a fixing means; An electric window opening/closing device having a power cutoff function, characterized in that a fixing block (8) is installed on one side of the vertical bar (7) and has a fitting groove (8a) formed in the center of the surface so that the connecting shaft (51) of the opening/closing guide (50) is fitted and connected.

Description

Opening and closing apparatus for electric windows with power blocking function The present invention relates to an electric window opening and closing device having a power cutoff function, wherein the device enables not only automatic opening and closing of the blade by driving a forward/reverse motor, but also manual opening and closing of the blade by a user through manual operation using a handle by cutting off power transmission by a clutch unit. Generally, windows and doors are a type of movable structure, such as windows or doors, that is installed in an opening to block the interior of a building from the exterior or to distinguish indoor spaces from one another, and which can be freely opened, closed, and attached or detached. The function of windows and doors in openings provided in the exterior walls of a building is similar to that of exterior walls in that they protect the interior from external weather changes or intruders, block external noise and internal light and sound, provide ventilation or natural lighting functions, and block the exterior from the interior by opening and closing the windows and doors. Meanwhile, among electric windows, outdoor unit louver windows are windows that regulate the amount of airflow by rotating multiple blades simultaneously to control the degree of opening and closing, and can be installed in places where ventilation is required to block sunlight and prevent the inflow of rainwater, and are installed in machine rooms, parking lots, or on the exterior walls of buildings for ventilation. The manual opening and closing louver is designed so that multiple blades rotate simultaneously in conjunction with the operation of the handle to open or close. However, manual opening and closing louvers were cumbersome and inconvenient because the user had to manually operate the handle. To solve this problem, an automatic opening and closing louver window driven by a forward/reverse motor has been developed, and the forward/reverse motor is driven by the ON operation of the control switch to open or close the blades. However, since multiple gears installed between the forward/reverse motor and the blade are always connected to transmit power when the forward/reverse motor is driven, if external pressure is applied to the blade while the forward/reverse motor is turned off, that pressure acts as a load and affects the drive system, such as the multiple gears and the forward/reverse motor, which may cause damage or breakage to the forward/reverse motor and gears. In addition, since the automatic opening and closing louvers have a structure that makes manual operation impossible, there was inconvenience in use because it was difficult for the user to manually open and close the blades in the event of a failure in the forward/reverse motor. Regarding technology for automatic opening and closing louvers, Korean Patent Publication No. 10-2020-0042631 discloses a technology that allows the blades to be opened and closed manually by operating a handle in the event of a failure of the forward/reverse motor. However, the above patent is designed so that the blade is opened and closed by operating the handle only when the forward/reverse motor fails. Since the gears of the reduction gear connected to the drive shaft of the forward/reverse motor are always connected like in a conventional automatic opening/closing louver, when external pressure is applied to the blade, that pressure acts as a load on the forward/reverse motor and the gears, affecting the drive system. Additionally, even if the handle is operated arbitrarily before the forward/reverse motor fails, the pressure resulting from the operation of the handle acts as a load, which can cause damage or breakage to the forward/reverse motor and the gears. FIG. 1 is a state diagram showing an outdoor unit louver window equipped with an electric window opening and closing device according to the present invention. FIG. 2 is an installation state diagram of an electric window opening and closing device installed on a window frame according to the present invention. FIG. 3 is an exploded view showing an opening/closing guide that is fitted and connected to a fixing block coupled to a connecting piece connecting a plurality of blades according to the present invention. FIG. 4 is a perspective view showing an electric window opening and closing device having a power cutoff function according to the present invention. FIG. 5 is an exploded view of the housing and opening/closing guide coupled to the fixed bracket in FIG. 4. FIG. 6 is a diagram showing a clutch portion installed in a reduction gear portion according to the present invention. FIG. 7 is an exploded view showing a clutch gear configured to move elastically by an elastic spring according to the present invention. FIG. 8a is a diagram showing the state in which power is transmitted when the rotating bracket rotates counterclockwise during the closing operation of the blade