Hidden motor assembly

Abstract

The utility model relates to the technical field of curtain motors, and discloses a hidden motor assembly, which is characterized by comprising a motor, the motor comprises a shell, a motor, a control assembly and a transmission assembly, a connecting cavity is formed outside the shell, an output end is arranged at the connecting cavity, and the motor is in transmission connection with the output end through the transmission assembly. The central axis of the motor is parallel to the central axis of the output end, and the motor and the output end are arranged side by side, so that the space of the side edge of the motor is saved, the height of the motor in the vertical direction can be reduced, and the motor can be better hidden; the two Hall sensors are arranged below the connecting cavity, so that the overall length of the shell can be saved compared with the mode that the two Hall sensors are arranged on one side of the connecting cavity; the magnetic ring is arranged in the transmission case, so that the space occupied by the mode that the magnetic ring is arranged in the motor is saved; the first control panel is located between the motor and the transmission assembly and extends to the position below the connecting cavity, so that the space in the shell is used more compactly.

Description

Technical Field

[0001] This utility model relates to the field of curtain motor technology, and more specifically to a concealed motor assembly. Background Technology

[0002] Electric curtains include an exposed motor. The motor's output is connected to a transmission box located at the end of the track, thereby driving the belt drive within the track. The size requirements for the motor are more stringent depending on the design of different curtain boxes.

[0003] Traditional curtain motors are installed vertically to the track; the reduction mechanism is located between the motor and the clutch mechanism, and the motor, reduction mechanism, and clutch mechanism are arranged in a straight line with their central axes coinciding, resulting in an excessively long overall length of the curtain motor. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a concealed motor assembly for shortening the overall length of the motor.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a concealed motor assembly, including a motor, the motor including a housing, a motor assembly, a control assembly, and a transmission assembly, a connecting cavity formed outside the housing, an output end provided at the connecting cavity, the motor being connected to the output end via the transmission assembly, the central axis of the motor being parallel to the central axis of the output end, the control assembly including a first control board, the first control board being located between the motor and the transmission assembly and extending below the connecting cavity, two Hall sensors being fixedly connected to the first control board, the two Hall sensors being located on one side or below the connecting cavity.

[0006] As a further improvement of this utility model, the transmission assembly includes a first reduction gear group and a second reduction gear group, the motor is driven by the first reduction gear group, the first reduction gear group and the second reduction gear group are driven by each other, and the output end is driven by the second reduction gear group.

[0007] As a further improvement of this utility model, the first reduction gear includes a first sun gear, three first planet gears and an output gear. A first gear ring is formed inside the housing. The first sun gear is fixedly connected to the output shaft of the motor. The first planet gears mesh between the first sun gear and the first gear ring. The first planet gears are rotatably connected to the output gear. The output gear is rotatably connected to the housing.

[0008] As a further improvement of this utility model, the second reduction gear includes a second sun gear and three second planet gears. The second sun gear is connected to the output gear for transmission. A second gear ring is formed on the housing. The second planet gears mesh between the second sun gear and the second gear ring. The second planet gears are rotatably connected to the output end.

[0009] As a further improvement of this utility model, a transmission gear is rotatably connected to the housing, and the transmission gear meshes between the output gear and the second sun gear.

[0010] As a further improvement of this utility model, an input gear is integrally formed on the second sun gear, the input gear meshes with the transmission gear, a positioning pin is formed on the second sun gear, and a positioning hole is opened on the side of the output end facing the second sun gear, and the positioning pin is inserted into the positioning hole.

[0011] As a further improvement of this utility model, it also includes a transmission box, in which a belt gear is rotatably connected, the belt gear is drivingly connected to the output end, and a magnetic ring is fixedly connected to the belt gear.

[0012] As a further improvement of this utility model, an input component is rotatably connected to the belt gear, and a clutch portion is provided between the input component and the belt gear to disengage or engage the input component and the belt gear.

[0013] As a further improvement of this utility model, the clutch part includes a clutch component, an iron component, and two magnetic beads. The clutch component is integrally formed with the input component. The iron component is connected to the transmission box. The two magnetic beads are located on both sides of the clutch component and are attracted to the iron component. The belt gear has a clutch cavity on the side facing the iron component. The clutch component is located in the clutch cavity. The clutch cavity has two grooves that are adapted to the magnetic beads.

[0014] As a further improvement of this utility model, the transmission box includes a cover plate and a shell, the cover plate and the shell are detachably connected, and the iron part is fixedly connected to the cover plate.

[0015] The beneficial effects of this utility model are as follows: By arranging the motor and output end side by side, the space on the side of the motor is utilized, which can reduce the height of the motor in the vertical direction and thus better conceal the motor; by placing the two Hall sensors below the connecting cavity, the overall length of the housing can be saved compared to placing them on one side of the connecting cavity; by placing the magnetic ring inside the transmission box, the space occupied by placing the magnetic ring inside the motor is saved; the first control board is located between the motor and the transmission assembly and extends to the bottom of the connecting cavity, making the use of space inside the housing more compact. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the motor in this utility model;

[0019] Figure 4 This is a cross-sectional view of the motor in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the first control board in this utility model;

[0021] Figure 6 This is a schematic diagram of the transmission box in this utility model;

[0022] Figure 7 This is a cross-sectional view of the transmission box in this utility model;

[0023] Figure 8 This is a schematic diagram of the internal structure of the transmission box in this utility model;

[0024] Figure 9 This is a structural schematic diagram of the input component in this utility model;

[0025] Figure 10 This is a schematic diagram of the belt gear structure in this utility model;

[0026] Figure 11 This is a schematic diagram of the clutch component in this utility model;

[0027] Figure 12 This is a cross-sectional view of the transmission component in this utility model;

[0028] Figure 13 This is a schematic diagram of the internal structure of the transmission component in this utility model;

[0029] Figure 14 This is a schematic diagram of the structure of the first and second gear rings in this utility model;

[0030] Figure 15 This is a schematic diagram of the output end in this utility model;

[0031] Figure 16 This is a schematic diagram of the structure of the second sun gear in this utility model;

[0032] Figure 17 This is a schematic diagram of the output gear in this utility model.

[0033] Reference numerals: 1. Housing; 11. Connecting cavity; 12. First gear ring; 13. Second gear ring; 2. Motor; 3. Control assembly; 31. First control board; 311. Hall sensor; 4. First reduction gear group; 41. First sun gear; 42. First planet gear; 43. Output gear; 5. Second reduction gear group; 51. Second sun gear; 511. Positioning pin; 52. Second planet gear; 53. Input gear; 6. Output end; 61. Positioning hole; 7. Transmission gear; 8. Transmission box; 81. Belt gear; 811. Clutch cavity; 812. Groove; 82. Magnetic ring; 83. Input component; 84. Cover plate; 85. Housing; 91. Clutch component; 92. Iron component. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0035] Reference Figures 1 to 17 As shown, a concealed motor assembly of this embodiment includes a motor, which includes a housing 1, a motor 2, a control component 3, and a transmission component. The housing 1 includes a cover, which includes a top cover and a bottom cover. The top cover and the bottom cover are detachably connected by screws.

[0036] A connecting cavity 11 is formed on the outside of the housing 1. The connecting cavity 11 is formed on the top cover. The connecting cavity 11 is used to connect the transmission box 8. The connecting cavity 11 has an upper opening and a side opening to facilitate the installation of the transmission box 8. The connecting cavity 11 can accommodate part of the transmission box 8. After the transmission box 8 is connected to the housing 1, the overall length of the two can be shortened.

[0037] An output end 6 is provided at the connecting cavity 11. The output end 6 can be formed with a spline head or a spline groove. Preferably, in this embodiment, the output end 6 is formed with a spline head and extends into the connecting cavity 11, which facilitates connection with the transmission box 8 and makes the space inside the housing 1 more compact.

[0038] A raised rib is formed on the transmission box 8, and a positioning groove is formed on the side wall of the transmission cavity. The transmission box 8 is connected to the motor through the raised rib and the positioning groove. In addition, there are two positioning grooves and two raised ribs.

[0039] Motor 2 is connected to output end 6 via a transmission assembly. The central axis of motor 2 is parallel to the central axis of output end 6, so that motor 2 and output end 6 are arranged side by side. This takes up space on the side of the motor, which can reduce the height of the motor in the vertical direction and thus better hide the motor.

[0040] Reference Figure 2 , Figure 4 and Figure 5 As shown, the control component 3 includes a first control board 31, which is located between the motor 2 and the transmission component and extends below the connecting cavity 11, making the space inside the housing 1 more compact. Two Hall sensors 311 are fixedly connected to the first control board 31. The two Hall sensors 311 are located on one side or below the connecting cavity 11. The Hall sensors 311 detect the rotation of the magnetic ring 82, thereby determining the rotation direction and rotation stroke of the motor output 6, and saving the space occupied by the magnetic ring 82 placed inside the motor.

[0041] In one embodiment, two Hall sensors 311 are disposed on one side of the connecting cavity 11. A vertical plate needs to be electrically connected to the first control board 31, and the two Hall sensors 311 are electrically connected to the vertical plate. At this time, the magnetic poles on the magnetic ring 82 are disposed on its side, which makes it easier for the Hall sensors 311 to detect them.

[0042] Preferably, in this embodiment, the two Hall sensors 311 are disposed below the connecting cavity 11, which can save the overall length of the housing 1 compared to disposing them on one side of the connecting cavity 11;

[0043] At this time, the first control board 31 is set horizontally, the magnetic poles on the magnetic ring 82 are set on its bottom surface, and a clearance groove is opened at the bottom of the top cover to accommodate the Hall sensor 311, and the thickness at the top wall of the clearance groove is reduced to facilitate the Hall sensor 311 to detect the magnetic pole signal.

[0044] Reference Figure 2 , Figure 4 , Figure 12 and Figure 13 As shown, the transmission assembly includes a first reduction gear 4 and a second reduction gear 5. The motor 2 is connected to the first reduction gear 4, the first reduction gear 4 and the second reduction gear 5 are connected to each other, and the output end 6 is connected to the second reduction gear 5. The transmission assembly is divided into a first reduction gear 4 and a second reduction gear 5. The first reduction gear 4 and the second reduction gear 5 can transmit power to each other through gears, wherein there can be one or more gears.

[0045] The first reduction group 4 and the second reduction group 5 are arranged side by side, which reduces the height of the motor in the vertical direction compared with the planetary reducers arranged in parallel in the transmission curtain opening and closing motor.

[0046] The first reduction group 4 and the second reduction group 5 can be a stacked gear reduction group or a planetary gear reduction group. Preferably, in this embodiment, the first reduction group 4 and the second reduction group 5 are both planetary gear reduction groups, which can better reduce noise.

[0047] A transmission bearing is connected between the motor 2 and the housing 1 to increase the stability of the motor 2 during operation.

[0048] Reference Figure 12 , Figure 13 and Figure 14 As shown, the first reduction gear 4 includes a first sun gear 41, three first planet gears 42 and an output gear 43. A first gear ring 12 is formed inside the housing 1. The housing 1 also includes an inner shell, which includes an upper shell and a lower shell. The upper shell and the lower shell are detachably connected. The inner shell is located inside the cover and is used to accommodate the transmission components. The first gear ring 12 is integrally formed on the upper shell.

[0049] The first sun gear 41 is fixedly connected to the output shaft of the motor 2. The first planet gear 42 meshes between the first sun gear 41 and the first ring gear 12. The first planet gear 42 is rotatably connected to the output gear 43. The output gear 43 is rotatably connected to the housing 1.

[0050] Reference Figure 17 As shown, three first connecting columns are fixedly connected to the output gear 43, the first planetary gear 42 is rotatably connected to the corresponding first connecting column, the output gear 43 is rotatably connected to the lower housing, and the output gear 43 and the lower housing are rotatably connected through the first bearing to increase the stability of the output gear 43 during rotation. The transmission bearing is coaxial with the first bearing.

[0051] A first support column is formed on the lower housing, the inner ring of the first bearing is fixedly connected to the first support column, and the outer ring of the first bearing is fixedly connected to the output gear 43.

[0052] When the motor 2 drives the first sun gear 41 to rotate, the first ring gear 12 remains stationary, which allows the first planetary gear 42 to drive the output gear 43 to rotate, thus transmitting the power of the motor 2 to the output gear 43.

[0053] Reference Figure 12 , Figure 13 and Figure 14 As shown, the second reduction gear 5 includes a second sun gear 51 and three second planet gears 52. The second sun gear 51 is connected to the output gear 43. A second gear ring 13 is formed on the housing 1. Preferably, the second gear ring 13 is integrally formed on the upper housing. The second planet gears 52 mesh between the second sun gear 51 and the second gear ring 13. The second planet gears 52 are rotatably connected to the output end 6.

[0054] Reference Figure 15 As shown, three second connecting posts are formed on the side of the output terminal 6 facing the second planetary gear 52, and the second planetary gear 52 is rotatably connected to the corresponding second connecting posts;

[0055] When the second sun gear 51 rotates, it will drive the second planet gear 52 to rotate. Since the second ring gear 13 is stationary, the second planet gear 52 can drive the output end 6 to rotate, so that the power of the second sun gear 51 is transmitted to the output end 6.

[0056] A second bearing is connected between the second sun gear 51 and the lower housing. The central axis of the second bearing coincides with the central axis of the output end 6. A second support is formed on the lower housing. The inner ring of the second bearing is fixedly connected to the second support, and the outer ring of the second bearing is fixedly connected to the second sun gear 51.

[0057] The central axis of the first reduction gear 4 coincides with the central axis of the motor 2, and the central axis of the second reduction gear 5 coincides with the central axis of the output end 6. The central axis of the first reduction gear 4 and the central axis of the second reduction gear 5 are set parallel to each other. The installation position of the second reduction gear 5 can be designed according to needs, and only the transmission structure between the first reduction gear 4 and the second reduction gear 5 needs to be changed.

[0058] Among them, there can be multiple gears between the output gear 43 and the second sun gear 51. These multiple gears can be arranged side by side or staggered in the vertical direction to form a stacked gear group.

[0059] Reference Figure 2 , Figure 4 , Figure 12 and Figure 13 As shown, preferably, a transmission gear 7 is rotatably connected to the housing 1, and the transmission gear 7 meshes between the output gear 43 and the second sun gear 51;

[0060] A third bearing is connected between the transmission gear 7 and the upper or lower shell. Preferably, in this embodiment, a third support is formed on the upper shell, the inner ring of the third bearing is fixedly connected to the third support, and the outer ring of the third bearing is fixedly connected to the transmission gear 7.

[0061] The output gear 43, the transmission gear 7, and the input gear 53 are at the same position and height.

[0062] An input gear 53 is integrally formed on the second sun gear 51. The input gear 53 meshes with the transmission gear 7. A positioning pin 511 is formed on the second sun gear 51. A positioning hole 61 is opened on the side of the output end 6 facing the second sun gear. The positioning pin 511 is inserted into the positioning hole 61.

[0063] Reference Figure 16As shown, the second sun gear 51 also includes a sun gear, and the input gear 53 is integrally formed with the sun gear, and the central axes of the two coincide. The setting of the input gear 53 facilitates the connection between the second sun gear 51 and the inner shell. The outer diameter of the input gear 53 is larger than the outer diameter of the sun gear, which facilitates the meshing with the transmission gear 7.

[0064] In addition, the positioning pin 511 is inserted into the positioning hole 61 to position the output end 6, making the output end 6 coaxial with the second sun gear 51, thereby increasing the stability of the power transmission.

[0065] Reference Figure 6 and Figure 7 As shown, it also includes a transmission box 8, in which a belt gear 81 is rotatably connected. The belt gear 81 is connected to the output end 6 for transmission, and a magnetic ring 82 is fixedly connected to the belt gear 81. Moving the magnetic ring 82 from the motor to the transmission box 8 can reduce the space occupied by the magnetic ring 82 on the motor, thereby further compressing the overall size of the motor.

[0066] The magnetic ring 82 is located inside the transmission box 8 on the side near the output end 6, so that after the transmission box 8 is installed with the motor, the magnetic ring 82 can be close to the motor, that is, the magnetic ring 82 can be close to the Hall sensor 311, so that the magnetic poles on the magnetic ring 82 can be sensed by the Hall sensor 311, ensuring the accuracy of the rotation direction and rotation stroke of the output end 6 detected by the Hall sensor 311.

[0067] Reference Figure 7 , Figure 8 and Figure 9 As shown, an input component 83 is rotatably connected to the belt gear 81. The input component can be a spline head, a spline groove, or other structural shapes that can be driven and connected to the motor output end 6. Preferably, in this embodiment, the input component 83 has a spline groove. A clutch is provided between the input component 83 and the belt gear 81 to disengage or engage the input component 83 and the belt gear 81. The clutch is located inside the transmission box 8 and inside the belt gear 81. Compared with the method of setting the clutch inside the motor, the space occupied by the motor can be reduced, thereby reducing the overall size of the motor.

[0068] Reference Figure 8 As shown, the clutch part includes a clutch component 91, an iron component 92, and two magnetic beads. The clutch component 91 is integrally formed with the input component 83. The iron component 92 is connected to the transmission box 8. The two magnetic beads are located on both sides of the clutch component 91 and are attracted to the iron component 92. The belt gear 81 has a clutch cavity 811 on the side facing the iron component 92. The clutch component 91 is located in the clutch cavity 811. Two grooves 812 that are adapted to the magnetic beads are opened in the clutch cavity 811.

[0069] When the input component 83 rotates, it will drive the clutch component 91 to rotate simultaneously. The clutch component 91 pushes the magnetic bead into the corresponding groove 812, so that the clutch component 91 and the transmission gear 7 are engaged, thereby driving the transmission gear 7 to rotate and realizing the function of motor controlling the opening and closing of the curtain.

[0070] When the curtain is manually pulled, the transmission gear 7 will rotate simultaneously. At this time, the magnetic bead is attracted to the iron part 92 and is not engaged in the groove 812. The transmission gear 7 is disengaged from the clutch 91, so the input part 83 will not rotate, thus realizing the function of manually controlling the opening and closing of the curtain.

[0071] Reference Figure 6 and Figure 7 As shown, the transmission box 8 includes a cover plate 84 and a housing 85. The cover plate 84 and the housing 85 are detachably connected, and the iron part 92 is fixedly connected to the cover plate 84.

[0072] The cover plate 84 has a through hole, preferably a countersunk hole, and the outer shell 85 has a threaded hole, which corresponds to the through hole, and the connection is detachable by screws.

[0073] A latching part is provided between the cover plate 84 and the outer shell 85. The latching part includes a fastener and a slot. The fastener is integrally formed on the inner wall of the outer shell 85, and there are two fasteners arranged opposite each other. The slot is opened on the cover plate 84, and there are also two slots, which are used to increase the connection strength between the cover plate 84 and the outer shell 85. The latch is located on the side of the outer shell 85 away from the threaded hole to prevent the cover plate 84 on that side from tilting up.

[0074] The cover plate 84 has a slot on the side facing the input member 83, and at least part of the iron member 92 extends into the slot. The iron member 92 includes an extension section that extends into the slot. At least one vertical surface is provided on the outer side of the extension section, and a second vertical surface corresponding to the first vertical surface is formed in the slot to prevent the iron member 92 from rotating.

[0075] The extension section and the slot can be interference-fitted to prevent the iron part 92 from loosening.

[0076] When repairing the clutch, simply open the cover plate 84, which is much more convenient.

[0077] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A concealed motor assembly, characterized in that: The device includes a motor, which comprises a housing (1), a motor (2), a control component (3), and a transmission component. A connecting cavity (11) is formed outside the housing (1), and an output end (6) is provided at the connecting cavity (11). The motor (2) is connected to the output end (6) through the transmission component. The central axis of the motor (2) is parallel to the central axis of the output end (6). The control component (3) includes a first control board (31), which is located between the motor (2) and the transmission component and extends below the connecting cavity (11). Two Hall sensors (311) are fixedly connected to the first control board (31), and the two Hall sensors (311) are located on one side or below the connecting cavity (11).

2. The concealed motor assembly according to claim 1, characterized in that: The transmission assembly includes a first reduction gear (4) and a second reduction gear (5). The motor (2) is driven by the first reduction gear (4). The first reduction gear (4) and the second reduction gear (5) are driven by each other. The output end (6) is driven by the second reduction gear (5).

3. A concealed motor assembly according to claim 2, characterized in that: The first reduction gear (4) includes a first sun gear (41), three first planet gears (42) and an output gear (43). A first gear ring (12) is formed inside the housing (1). The first sun gear (41) is fixedly connected to the output shaft of the motor (2). The first planet gears (42) mesh between the first sun gear (41) and the first gear ring (12). The first planet gears (42) are rotatably connected to the output gear (43). The output gear (43) is rotatably connected to the housing (1).

4. A concealed motor assembly according to claim 3, characterized in that: The second reduction gear (5) includes a second sun gear (51) and three second planet gears (52). The second sun gear (51) is connected to the output gear (43) for transmission. A second gear ring (13) is formed on the housing (1). The second planet gears (52) mesh between the second sun gear (51) and the second gear ring (13). The second planet gears (52) are rotatably connected to the output end (6).

5. A concealed motor assembly according to claim 4, characterized in that: A transmission gear (7) is rotatably connected to the housing (1), and the transmission gear (7) meshes between the output gear (43) and the second sun gear (51).

6. A concealed motor assembly according to claim 5, characterized in that: An input gear (53) is integrally formed on the second sun gear (51), the input gear (53) meshes with the transmission gear (7), a positioning pin (511) is formed on the second sun gear (51), and a positioning hole (61) is opened on the side of the output end (6) facing the second sun gear, and the positioning pin (511) is inserted into the positioning hole (61).

7. A concealed motor assembly according to claim 1, characterized in that: It also includes a transmission box (8), in which a belt gear (81) is rotatably connected. The belt gear (81) is connected to the output end (6) in a transmission connection, and a magnetic ring (82) is fixedly connected to the belt gear (81).

8. A concealed motor assembly according to claim 7, characterized in that: An input component (83) is rotatably connected to the belt gear (81), and a clutch is provided between the input component (83) and the belt gear (81) to disengage or engage between the input component (83) and the belt gear (81).

9. A concealed motor assembly according to claim 8, characterized in that: The clutch part includes a clutch component (91), an iron component (92), and two magnetic beads. The clutch component (91) is integrally formed with the input component (83). The iron component (92) is connected to the transmission box (8). The two magnetic beads are located on both sides of the clutch component (91) and are attracted to the iron component (92). The belt gear (81) has a clutch cavity (811) on the side facing the iron component (92). The clutch component (91) is located in the clutch cavity (811). The clutch cavity (811) has two grooves (812) that are adapted to the magnetic beads.

10. A concealed motor assembly according to claim 9, characterized in that: The transmission box (8) includes a cover plate (84) and an outer shell (85). The cover plate (84) and the outer shell (85) are detachably connected. The iron part (92) is fixedly connected to the cover plate (84).

Images