External motor of venetian blind

Abstract

The utility model relates to the technical field of curtain motors, and discloses an external motor of a venetian blind, which is characterized by comprising a shell and an output shaft, a power assembly is arranged in the shell and comprises a motor and a transmission part, and the central axis direction of the output end of the motor is perpendicular to the central axis direction of the output shaft. The output shaft can be in transmission connection with an internal transmission device in the prior art, so that power is transmitted to the internal transmission device through the power assembly and the output shaft, lifting of the venetian blind is achieved, manual operation is changed into electric operation, the power assembly can be controlled through a remote controller and the like, and a user can conveniently adjust the height position of the venetian blind. A bead pulling structure is omitted, so that the incident light cannot be shielded; the output directions of the output shaft and the output end of the motor are changed through the worm and the worm gear, and compared with a reversing mode of two bevel gears, the occupied space in the direction perpendicular to the glass can be further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of curtain motor, more specifically relates to a venetian blind external motor. BACKGROUND

[0002] The conventional venetian blind is installed in the room, which is located in the inner side of the window, the light entering the room is controlled by adjusting the angle of the curtain piece, including manual venetian blind and electric venetian blind, wherein, the manual venetian blind realizes the lifting of the louver through the pull rope, the light adjusting rod or the pull bead, the electric venetian blind realizes the lifting of the louver through the motor assembly, and the motor assembly is arranged in the curtain box.

[0003] The existing venetian blind is further improved, the venetian blind is arranged in the space formed by the hollow glass, and the installation space of the venetian blind can be saved.

[0004] In the patent application No. CN202110637142.2, a pull bead venetian blind is disclosed, an external transmission device is installed outside the front glass, and the lifting function of the venetian blind is realized through cooperation of the external transmission device and the internal transmission device.

[0005] However, in the manual structure mode, the pull bead is vertically arranged and can block sunlight. UTILITY MODEL CONTENTS

[0006] In view of the defects in the prior art, the utility model aims at providing a venetian blind external motor to overcome the defects in the prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a venetian blind external motor, comprising a shell and an output shaft, a power assembly is arranged in the shell, the power assembly comprises a motor and a transmission part, the central axis direction of the motor output end is perpendicular to the central axis direction of the output shaft, the motor drives the output shaft to rotate through the transmission part, and the output shaft extends out of the shell.

[0008] As a further improvement of the utility model, a first circuit board is fixedly connected in the shell, and the first circuit board is electrically connected with the motor.

[0009] As a further improvement of the utility model, a plurality of control buttons are arranged on the first circuit board.

[0010] As a further improvement of the utility model, a plug-in interface is arranged on the first circuit board, and a through hole corresponding to the plug-in interface is formed in the shell.

[0011] As a further improvement of the utility model, the transmission part comprises a worm and a worm wheel, the worm is fixedly connected with the output end of the motor, the worm wheel is fixedly connected with the output shaft, and the worm is engaged with the worm wheel.

[0012] As a further improvement of the utility model, a bearing is connected between one end of the output shaft in the shell and the shell.

[0013] As a further improvement of the utility model, the motor is provided with a stroke detection mechanism at one end away from the output end.

[0014] As a further improvement of the utility model, the stroke detection mechanism comprises a magnetic ring and two hall sensors, the motor has double-end output, the magnetic ring is fixedly connected to the other output end of the motor, a second circuit board is arranged on one end of the motor away from the output shaft or the shell 1, and the two hall sensors are electrically connected to the second circuit board.

[0015] As a further improvement of the utility model, a supporting plate is integrally formed in the shell, and the motor is detachably connected with the supporting plate.

[0016] As a further improvement of the utility model, the shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are detachably connected.

[0017] The output shaft in the utility model can be drivingly connected with the internal transmission device in the prior art, so that power is transmitted to the internal transmission device through the power assembly and the output shaft to realize the lifting of the louver blind, the manual change is changed into electric change through the arrangement of the power assembly, the power assembly can be controlled through a remote controller and the like, the height position of the louver blind is adjusted by the user, the structure of the pull bead is omitted, the incident light is not shielded, the output shaft and the output end of the motor are changed in the mode of the worm and the worm wheel, compared with the reversing mode of the two bevel gears, the occupied space in the direction perpendicular to the glass can be more reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the front view structural schematic diagram of the utility model;

[0019] Figure 2 is the rear view structural schematic diagram of the utility model;

[0020] Figure 3 is the sectional view of the utility model;

[0021] Figure 4 is the structural schematic diagram of the upper shell in the utility model;

[0022] Figure 5It is the internal structure schematic diagram of the utility model;

[0023] Figure 6 It is the structure schematic diagram of the lower shell in the utility model.

[0024] Reference signs: 1, shell; 11, first circuit board; 12, control button; 13, plug-in interface; 14, through hole; 15, support plate; 16, upper shell; 17, lower shell; 2, output shaft; 21, bearing; 3, power assembly; 31, motor; 32, transmission part; 321, worm; 322, worm gear; 41, magnetic ring; 42, second circuit board. DETAILED DESCRIPTION

[0025] The utility model is further explained in detail below in combination with the drawings and examples. Same parts are indicated by same reference signs. It should be noted that the words "front", "back", "left", "right", "up" and "down" in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a specific part.

[0026] Referring to Figures 1 to 6 The external motor of the venetian blind of the embodiment includes a shell 1 and an output shaft 2. The shell 1 includes an upper shell 16 and a lower shell 17. The upper shell 16 is detachably connected with the lower shell 17. Four columns are formed at the four corners inside the upper shell 16. Threaded holes are formed on the side of the columns facing the lower shell 17. Through holes 14 are formed at the four corners of the lower shell 17. The through holes 14 are matched with the corresponding threaded holes. The through holes 14 and the threaded holes are connected by screws, so as to realize the detachable connection between the upper shell 16 and the lower shell 17.

[0027] A power assembly 3 is arranged in the shell 1. The power assembly 3 includes a motor 31 and a transmission part 32. The central axis direction of the output end of the motor 31 is perpendicular to the central axis direction of the output shaft 2. The motor 31 drives the output shaft 2 to rotate through the transmission part 32. The output shaft 2 extends out of the shell 1. Perforations are formed on the shell 1 to allow the output shaft 2 to pass through. The output direction of the output end of the motor 31 is changed by the transmission part 32, so that the shell 1 can be placed horizontally on the installed glass or frame, and the occupied space in the direction perpendicular to the glass can be reduced.

[0028] The transmission part 32 can be two bevel gears. The output direction of the output shaft 2 is changed by the meshing of the two bevel gears.

[0029] The output shaft 2 can be connected with the internal transmission device in the prior art, so that power is transmitted from the power assembly 3 and the output shaft 2 to the internal transmission device, to realize the lifting of the venetian blind.

[0030] The power assembly 3 is arranged, manual change is changed into electric, power assembly 3 can be controlled by remote controller etc., it is convenient for user to adjust the height position of the shutter;And the structure of pull bead is omitted, so that the light of the light that will not cause the obstruction of the light that enters.

[0031] Referring to Figure 5 As shown, the first circuit board 11 is fixedly connected in the shell 1, the first circuit board 11 is electrically connected with the motor 31, and the working state of the motor 31 is controlled by the first circuit board 11;

[0032] The first circuit board 11 is fixedly connected with the shell 1 by screw, the firmness of the first circuit board 11 is increased, and the first circuit board 11 is electrically connected with the motor 31.

[0033] Referring to Figure 5 As shown, a plurality of control buttons 12 are arranged on the first circuit board 11, in the embodiment, three control buttons 12 are electrically connected on the first circuit board 11, one of the control buttons 12 controls the rising of the shutter, another control button 12 controls the falling of the shutter, and the last control button 12 controls the stop of the shutter;

[0034] Correspondingly, three pressing parts are arranged on the shell 1, which correspond to the control buttons 12 respectively, so that the user can press the control buttons 12 through the pressing parts;

[0035] Of course, the control buttons 12 can also be integrated into one, and the plurality of control buttons 12 can facilitate the user to select specific functions.

[0036] Referring to Figure 4 And Figure 5 As shown, the first circuit board 11 is provided with a plug-in interface 13, and the shell 1 is provided with a through hole 14 corresponding to the plug-in interface 13, so that power supply can be realized, and the corresponding plug is inserted into the plug-in interface 13 through the through hole 14.

[0037] Referring to Figure 3 、 Figure 5 As shown, the transmission part 32 includes a worm 321 and a worm wheel 322, the worm 321 is fixedly connected with the output end of the motor 31, the worm wheel 322 is fixedly connected with the output shaft 2, the worm 321 is engaged with the worm wheel 322, and the output direction of the output shaft 2 and the output end of the motor 31 is changed by the worm 321 and the worm wheel 322, compared with the reversing mode of two bevel gears, the occupied space perpendicular to the glass direction can be reduced, that is, the overall height of the shell 1 can be reduced.

[0038] One end of the output shaft 2 located in the shell 1 is connected with a bearing 21 between the shell 1, which increases the rotation stability between the output shaft 2 and the shell 1, and prevents the output shaft 2 from being dislocated.

[0039] The housing 1 is formed with a containing body which is integrally formed with the housing 1, and the containing body is provided with a containing groove, and the outer ring of the bearing 21 is fixedly connected in the containing groove.

[0040] The motor 31 is provided with a stroke detection mechanism at the end away from the output shaft, and the stroke detection mechanism is used to detect the stroke of the motor 31, so as to obtain the lifting stroke of the shutter, and better control the lifting distance of the shutter.

[0041] Referring to Figure 5 The stroke detection mechanism includes a magnetic ring 41 and two Hall sensors, the motor 31 has double-headed output, the magnetic ring 41 is fixedly connected to the other output end of the motor 1, the motor 31 is provided with a second circuit board 42 at the end away from the output shaft 2 or the housing 1, the two Hall sensors are electrically connected to the second circuit board 42, the second circuit board 42 can be electrically connected to the first circuit board 11 and powered by the first circuit board 11, wherein the magnetic ring 41 is provided with two magnetic poles, which are N and S poles, respectively, when the magnetic ring 41 rotates, the stroke is obtained by the Hall sensor sensing the change of the magnetic pole.

[0042] Preferably, the second circuit board 42 is welded to the end of the motor 31 away from the output shaft 2, so as to save the installation space.

[0043] Referring to Figure 4 The housing 1 is integrally formed with a support plate 15, the motor 31 is detachably connected with the support plate 15, the support plate 15 is used to support the motor 31, and the motor 31 and the support plate 15 are fixed by screws, so as to increase the stability of the motor 31.

[0044] The housing 1 is also integrally formed with a frame, and the frame is also used to support the motor 31 and cooperates with the support plate 15 to limit the movement of the motor 31 in the horizontal direction.

[0045] The above is only the preferred embodiment of the present application, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical solution belonging to the idea of the present application is within the protection scope of the present application. It should be noted that for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. An external motorized blind, characterized in that: The application relates to a power output device, which comprises a shell (1) and an output shaft (2), a power assembly (3) is arranged in the shell (1), the power assembly (3) comprises a motor (31) and a transmission part (32), the central axis direction of the output end of the motor (31) is perpendicular to the central axis direction of the output shaft (2), the motor (31) drives the output shaft (2) to rotate through the transmission part (32), the output shaft (2) extends out of the shell (1), and one end of the motor (31) away from the output end is provided with a stroke detection mechanism.

2. The external motorized blind of claim 1, wherein: The first circuit board (11) is fixedly connected in the shell (1) and is electrically connected with the motor (31).

3. The external motorized blind of claim 2, wherein: A plurality of control buttons (12) are arranged on the first circuit board (11).

4. The external motorized blind of claim 2, wherein: A plug-in interface (13) is arranged on the first circuit board (11), and a through hole (14) corresponding to the plug-in interface (13) is formed in the shell (1).

5. The external motorized blind of claim 1, wherein: The transmission part (32) comprises a worm (321) and a worm wheel (322), the worm (321) is fixedly connected with the output end of the motor (31), the worm wheel (322) is fixedly connected with the output shaft (2), and the worm (321) is engaged with the worm wheel (322).

6. The external motorized blind of claim 1, wherein: A bearing (21) is arranged between one end of the output shaft (2) in the shell (1) and the shell (1).

7. The external motorized blind of claim 1, wherein: The stroke detection mechanism comprises a magnetic ring (41) and two Hall sensors, the motor (31) has double-end output, the magnetic ring (41) is fixedly connected to the other output end of the motor (31), a second circuit board (42) is arranged on one end of the motor (31) away from the output shaft (2) or the shell (1), and the two Hall sensors are electrically connected to the second circuit board (42).

8. The external motorized blind of claim 1, wherein: A supporting plate (15) is integrally formed in the shell (1), and the motor (31) is detachably connected with the supporting plate (15).

9. The external motorized blind of claim 1, wherein: The shell (1) comprises an upper shell (16) and a lower shell (17), and the upper shell (16) and the lower shell (17) are detachably connected.

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