Hidden motor assembly

Abstract

The invention 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] The present invention relates to the technical field of curtain motors, and more particularly to a hidden motor assembly. Background Art

[0002] The electric curtain includes a motor, which is exposed. The output end of the motor is connected to a transmission box at the end of the track, thereby driving the belt drive in the track. For different curtain box designs, the size requirements of the motor are more stringent; The traditional curtain motor is perpendicular to the track, that is, it is installed in a vertical state; wherein the reduction mechanism is located between the motor and the clutch mechanism, and the motor, the reduction mechanism and the clutch mechanism are arranged in a straight line, and the central axes of the three coincide, resulting in the overall length of the curtain motor being too long. Summary of the invention

[0003] In view of the shortcomings of the prior art, an object of the present invention is to provide a hidden motor assembly for shortening the overall length of the motor.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hidden motor assembly, comprising a motor, the motor comprising 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, the motor is connected to the output end through the transmission assembly, the central axis of the motor is arranged parallel to the central axis of the output end, the control assembly comprises a first control board, the first control board is located between the motor and the transmission assembly, and extends to the bottom of the connecting cavity, two Hall sensors are fixedly connected to the first control board, and the two Hall sensors are located on one side or below the connecting cavity.

[0005] As a further improvement of the present invention, the transmission assembly includes a first reduction group and a second reduction group, the motor is transmission connected to the first reduction group, the first reduction group and the second reduction group are transmission connected, and the output end is transmission connected to the second reduction group.

[0006] As a further improvement of the present invention, the first reduction group includes a first sun gear, three first planetary gears and an output gear, a first ring gear is formed in the housing, the first sun gear is fixedly connected to the output shaft of the motor, the first planetary gear is meshed between the first sun gear and the first ring gear, the first planetary gear is rotationally connected to the output gear, and the output gear is rotationally connected to the housing.

[0007] As a further improvement of the present invention, the second reduction group includes a second sun gear and three second planetary gears, the second sun gear is transmission-connected to the output gear, a second ring gear is formed on the housing, the second planetary gear is meshed between the second sun gear and the second ring gear, and the second planetary gear is rotationally connected to the output end.

[0008] As a further improvement of the present invention, a transmission gear is rotatably connected to the housing, and the transmission gear is meshed between the output gear and the second sun gear.

[0009] As a further improvement of the present invention, an input gear is integrally formed on the second sun gear, the input gear is meshed with the transmission gear, a positioning column is formed on the second sun gear, a positioning hole is formed on the side of the output end facing the second sun gear, and the positioning column is inserted into the positioning hole.

[0010] As a further improvement of the present invention, it also includes a transmission box, in which a belt gear is rotatably connected, the belt gear is transmission-connected to the output end, and a magnetic ring is fixedly connected to the belt gear.

[0011] As a further improvement of the present invention, an input member is rotatably connected to the belt gear, and a clutch portion is provided between the input member and the belt gear to enable the input member and the belt gear to be disengaged or engaged.

[0012] As a further improvement of the present invention, the clutch part includes a clutch member, an iron member and two magnetic beads. The clutch member is integrally formed with the input member, the iron member is connected to the transmission box, the two magnetic beads are respectively located on both sides of the clutch member and adsorbed on the iron member, a clutch cavity is provided on the side of the belt gear facing the iron member, the clutch member is located in the clutch cavity, and two grooves matching the magnetic beads are provided in the clutch cavity.

[0013] As a further improvement of the present invention, the transmission box includes a cover plate and a shell, the cover plate is detachably connected to the shell, and the iron piece is fixedly connected to the cover plate.

[0014] The beneficial effects of the present invention are as follows: in the present invention, the motor and the output end are arranged side by side, which occupies the space on the side of the motor and can reduce the height of the motor in the vertical direction, thereby better hiding the motor; the two Hall sensors are arranged below the connecting cavity, which can save the overall length of the shell compared to arranging them on one side of the connecting cavity; the magnetic ring is arranged in the transmission box, which saves the space occupied by the magnetic ring arranged in the motor; the first control board is located between the motor and the transmission assembly, and extends to the bottom of the connecting cavity, so that the space in the shell is used more compactly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 It is a structural schematic diagram of the motor in the present invention; Figure 4 is a cross-sectional view of the motor in the present invention; Figure 5 It is a structural schematic diagram of the first control panel in the present invention; Figure 6 It is a structural schematic diagram of the transmission box in the present invention; Figure 7 is a cross-sectional view of a transmission case in the present invention; Figure 8 It is a schematic diagram of the internal structure of the transmission box in the present invention; Fig. 9 It is a structural schematic diagram of the input part in the present invention; Fig.10 It is a structural schematic diagram of the belt gear in the present invention; Fig.11 It is a schematic diagram of the structure of the clutch member in the present invention; Fig.12 is a cross-sectional view of the transmission assembly in the present invention; Fig.13 It is a schematic diagram of the internal structure of the transmission component in the present invention; Fig.14 It is a structural schematic diagram of the first gear ring and the second gear ring in the present invention; Fig.15 It is a structural schematic diagram of the output end in the present invention; Fig.16 It is a structural schematic diagram of the second sun gear in the present invention; Fig.17 It is a schematic diagram of the structure of the output gear in the present invention.

[0016] Figure numerals: 1. shell; 11. connecting cavity; 12. first ring gear; 13. second ring gear; 2. motor; 3. control assembly; 31. first control board; 311. Hall sensor; 4. first reduction group; 41. first sun gear; 42. first planetary gear; 43. output gear; 5. second reduction group; 51. second sun gear; 511. positioning column; 52. second planetary 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 part; 84. cover plate; 85. shell; 91. clutch part; 92. iron part. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0018] Reference Figures 1 to 17 As shown, a hidden motor assembly of this embodiment includes a motor, the motor includes a housing 1, a motor 2, a control assembly 3 and a transmission assembly, wherein the housing 1 includes a cover, the cover includes a top cover and a bottom cover, and the top cover and the bottom cover are detachably connected, and the detachable connection is achieved by screws; A connecting cavity 11 is formed outside 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 is provided with an upper opening and a side opening, which is convenient for installing 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. The connecting cavity 11 is provided with an output end 6, wherein a spline head or a spline groove may be formed on the output end 6. Preferably, in this embodiment, a spline head is formed on the output end 6, and the output end 6 extends into the connecting cavity 11, which is convenient for connection with the transmission box 8 and also makes the space in the housing 1 more compact. A convex strip 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 plugged into the motor through the convex strip and the positioning groove. In addition, there are two positioning grooves and two convex strips.

[0019] The motor 2 is connected to the output end 6 through a transmission assembly, and the central axis of the motor 2 is arranged in parallel with the central axis of the output end 6, so that the motor 2 and the output end 6 are arranged side by side, which takes up space on the side of the motor and can reduce the height of the motor in the vertical direction, thereby better hiding the motor; Reference Figure 2 , Figure 4 and Figure 5 As shown, the control assembly 3 includes a first control board 31, which is located between the motor 2 and the transmission assembly and extends to the bottom of the connecting cavity 11, so that the space in the housing 1 is more compact; 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. The rotation of the magnetic ring 82 is detected by the Hall sensor 311, so as to determine the rotation direction and rotation stroke of the motor output terminal 6, and save the space occupied by the way in which the magnetic ring 82 is arranged in the motor; In one embodiment, two Hall sensors 311 are arranged on one side of the connection cavity 11. It is necessary to electrically connect a vertical plate to the first control board 31, and electrically connect the two Hall sensors 311 to the vertical plate. At this time, the magnetic poles on the magnetic ring 82 are arranged on its side, which is convenient for the Hall sensor 311 to detect; Preferably, in this embodiment, the two Hall sensors 311 are arranged below the connecting cavity 11, which can save the overall length of the housing 1 compared to arranging them on one side of the connecting cavity 11; At this time, the first control board 31 is arranged horizontally, the magnetic poles on the magnetic ring 82 are arranged on its bottom surface, and an avoidance 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 avoidance groove is reduced to facilitate the Hall sensor 311 to detect the magnetic pole signal.

[0020] Reference Figure 2 , Figure 4 , Fig.12 and Fig.13 As shown, the transmission assembly includes a first reduction group 4 and a second reduction group 5, the motor 2 is transmission-connected to the first reduction group 4, the first reduction group 4 and the second reduction group 5 are transmission-connected, and the output end 6 is transmission-connected to the second reduction group 5, dividing the transmission assembly into the first reduction group 4 and the second reduction group 5, and the power transmission between the first reduction group 4 and the second reduction group 5 can be achieved through gears, wherein the gears can be one or more; 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 opening and closing curtain motor; Among them, 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.

[0021] A transmission bearing is connected between the motor 2 and the housing 1 to increase the stability of the motor 2 during operation.

[0022] Reference Fig.12 , Fig.13 and Fig.14 As shown, the first reduction group 4 includes a first sun gear 41, three first planetary gears 42 and an output gear 43, and a first ring gear 12 is formed in the housing 1, wherein the housing 1 also includes an inner housing, the inner housing includes an upper housing and a lower housing, the upper housing and the lower housing are detachably connected, the inner housing is arranged in the cover housing, the inner housing is used to accommodate the transmission assembly, and the first ring gear 12 is integrally formed on the upper housing; The first sun gear 41 is fixedly connected to the output shaft of the motor 2 , the first planetary gear 42 is meshed between the first sun gear 41 and the first ring gear 12 , the first planetary gear 42 is rotationally connected to the output gear 43 , and the output gear 43 is rotationally connected to the housing 1 .

[0023] Reference Fig.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 columns, the output gear 43 is rotatably connected to the lower shell, and the output gear 43 is rotatably connected to the lower shell through a first bearing to increase the stability of the output gear 43 during rotation, and the transmission bearing is coaxially arranged with the first bearing; A first support column is formed on the lower shell, an inner ring of the first bearing is fixedly connected to the first support column, and an outer ring of the first bearing is fixedly connected to the output gear 43; When the motor 2 drives the first sun gear 41 to rotate, since the first ring gear 12 is stationary, the first planetary gear 42 can drive the output gear 43 to rotate, so that the power of the motor 2 is transmitted to the output gear 43 .

[0024] Reference Fig.12 , Fig.13 and Fig.14 As shown, the second reduction group 5 includes a second sun gear 51 and three second planetary gears 52. The second sun gear 51 is transmission-connected to the output gear 43. A second ring gear 13 is formed on the housing 1. Preferably, the second ring gear 13 is integrally formed on the upper shell. The second planetary gear 52 is meshed between the second sun gear 51 and the second ring gear 13. The second planetary gear 52 is rotationally connected to the output end 6.

[0025] Reference Fig.15 As shown, three second connecting columns are formed on one side of the output end 6 facing the second planetary gear 52, and the second planetary gear 52 is rotatably connected to the corresponding second connecting columns; When the second sun gear 51 rotates, it drives the second planetary gear 52 to rotate. Since the second ring gear 13 is stationary, the second planetary 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 .

[0026] A second bearing is connected between the second sun gear 51 and the lower shell, the central axis of the second bearing coincides with the central axis of the output end 6, a second pillar is formed on the lower shell, the inner ring of the second bearing is fixedly connected to the second pillar, and the outer ring of the second bearing is fixedly connected to the second sun gear 51; The central axis of the first reduction group 4 coincides with the central axis of the motor 2, the central axis of the second reduction group 5 coincides with the central axis of the output end 6, and the central axis of the first reduction group 4 is arranged in parallel with the central axis of the second reduction group 5; the installation position of the second reduction group 5 can be designed according to needs, and it is only necessary to change the transmission structure between the first reduction group 4 and the second reduction group 5.

[0027] There may be multiple gears between the output gear 43 and the second sun gear 51, and the multiple gears may be arranged side by side or staggered in the vertical direction to form a stacked gear set; Reference Figure 2 , Figure 4 , Fig.12 and Fig.13 As shown, preferably, a transmission gear 7 is rotatably connected to the housing 1, and the transmission gear 7 is meshed between the output gear 43 and the second sun gear 51; A third bearing is connected between the transmission gear 7 and the upper shell or the lower shell. Preferably, in this embodiment, a third pillar is formed on the upper shell, the inner ring of the third bearing is fixedly connected to the third pillar, and the outer ring of the third bearing is fixedly connected to the transmission gear 7; The output gear 43, the transmission gear 7 and the input gear 53 are at the same height.

[0028] An input gear 53 is integrally formed on the second sun gear 51 , and the input gear 53 meshes with the transmission gear 7 . A positioning column 511 is formed on the second sun gear 51 , and a positioning hole 61 is formed on the side of the output end 6 facing the second sun gear, and the positioning column 511 is inserted into the positioning hole 61 .

[0029] Reference Fig.16 As 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 engagement with the transmission gear 7.

[0030] In addition, the positioning column 511 is inserted into the positioning hole 61 to position the output end 6 so that the output end 6 is coaxial with the second sun gear 51 , thereby increasing the stability of power transmission.

[0031] 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 transmission-connected to the output end 6, 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.

[0032] The magnetic ring 82 is located on one side of the transmission box 8 close to the output end 6, so that after the transmission box 8 and the motor are installed, 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.

[0033] Reference Figure 7 , Figure 8 and Fig. 9 As shown, an input member 83 is rotatably connected to the belt gear 81, wherein the input section may be a spline head, or may have a spline groove, or may have other structural shapes that can be connected to the motor output end 6 for transmission. Preferably, in this embodiment, the input member 83 has a spline groove; a clutch portion is provided between the input member 83 and the belt gear 81 to disengage or engage the input member 83 and the belt gear 81. The clutch portion is arranged in the transmission box 8 and in the belt gear 81. Compared with the method in which the clutch portion is arranged in the motor, the space occupied by the motor can be reduced, thereby reducing the overall size of the motor.

[0034] Reference Figure 8 As shown, the clutch portion includes a clutch member 91, an iron member 92 and two magnetic beads. The clutch member 91 and the input member 83 are integrally formed. The iron member 92 is connected to the transmission box 8. The two magnetic beads are respectively located on both sides of the clutch member 91 and adsorbed on the iron member 92. A clutch cavity 811 is provided on the side of the belt gear 81 facing the iron member 92. The clutch member 91 is located in the clutch cavity 811. Two grooves 812 that are compatible with the magnetic beads are provided in the clutch cavity 811.

[0035] When the input member 83 rotates, the input member 83 drives the clutch member 91 to rotate at the same time, and the clutch member 91 pushes the magnetic beads to be clamped into the corresponding groove 812, so that the clutch member 91 and the transmission gear 7 are engaged, thereby driving the transmission gear 7 to rotate, and realizing the function of the motor controlling the opening and closing of the curtain; When the curtain is pulled manually, the transmission gear 7 will rotate at the same time. At this time, the magnetic beads are adsorbed on the iron piece 92 and are not engaged in the groove 812. The transmission gear 7 is disengaged from the clutch piece 91 and the input piece 83 will not rotate, thereby realizing the function of manually controlling the opening and closing of the curtain.

[0036] 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 piece 92 is fixedly connected to the cover plate 84; A through hole is provided on the cover plate 84 , and preferably, the through hole may be a countersunk hole. A threaded hole is provided on the housing 85 , and the threaded hole corresponds to the through hole, and a detachable connection is achieved by screws.

[0037] A snap-fit ​​portion is provided between the cover plate 84 and the outer shell 85, and the snap-fit ​​portion includes a fastener and a slot, wherein the fastener is integrally formed on the inner wall of the outer shell 85, and there are two fasteners provided, and the two fasteners are arranged opposite to each other, and two slots are opened on the cover plate 84, which are also provided to increase the connection strength between the cover plate 84 and the outer shell 85; the snap-fit ​​is located on the side of the outer shell 85 away from the threaded hole to prevent the cover plate 84 on this side from tilting up.

[0038] A slot is formed on one side of the cover plate 84 facing the input member 83, and at least a portion of the iron member 92 extends into the slot. The iron member 92 includes an extension section, and the extension section extends into the slot. At least one vertical surface is formed on the outer side of the extension section, and a second vertical surface corresponding to the first vertical surface is formed in the slot, so as to prevent the iron member 92 from rotating. The extension section and the slot may be interference fit to prevent the iron piece 92 from loosening.

[0039] When repairing the clutch part, it is only necessary to open the cover plate 84, which is more convenient.

[0040] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A hidden motor assembly, characterized in that: The invention comprises a motor, wherein the motor comprises a housing (1), a motor (2), a control assembly (3) and a transmission assembly; a connecting cavity (11) is formed outside the housing (1); an output end (6) is arranged at the connecting cavity (11); the motor (2) is transmission-connected to the output end (6) via the transmission assembly; a central axis of the motor (2) is arranged parallel to a central axis of the output end (6); the control assembly (3) comprises a first control board (31); the first control board (31) is located between the motor (2) and the transmission assembly and extends below the connecting cavity (11); 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).

2. A hidden motor assembly according to claim 1, characterized in that: The transmission assembly comprises a first reduction group (4) and a second reduction group (5); the motor (2) is transmission-connected to the first reduction group (4); the first reduction group (4) is transmission-connected to the second reduction group (5); and the output end (6) is transmission-connected to the second reduction group (5).

3. A hidden motor assembly according to claim 2, characterized in that: The first reduction group (4) comprises a first sun gear (41), three first planetary gears (42) and an output gear (43); a first ring gear (12) is formed in the housing (1); the first sun gear (41) is fixedly connected to the output shaft of the motor (2); the first planetary gear (42) is meshed between the first sun gear (41) and the first ring gear (12); the first planetary gear (42) is rotationally connected to the output gear (43); and the output gear (43) is rotationally connected to the housing (1).

4. A hidden motor assembly according to claim 3, characterized in that: The second reduction group (5) comprises a second sun gear (51) and three second planetary gears (52); the second sun gear (51) is transmission-connected to the output gear (43); a second ring gear (13) is formed on the housing (1); the second planetary gear (52) is meshed between the second sun gear (51) and the second ring gear (13); and the second planetary gear (52) is rotationally connected to the output end (6).

5. A hidden 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) is meshed between the output gear (43) and the second sun gear (51).

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

7. A hidden motor assembly according to claim 1, characterized in that: It also comprises a transmission box (8), wherein a belt gear (81) is rotatably connected inside the transmission box (8), the belt gear (81) is transmission-connected to the output end (6), and a magnetic ring (82) is fixedly connected to the belt gear (81).

8. A hidden motor assembly according to claim 7, characterized in that: An input member (83) is rotatably connected to the belt gear (81), and a clutch portion is provided between the input member (83) and the belt gear (81) so as to enable the input member (83) and the belt gear (81) to be disengaged or engaged.

9. A hidden motor assembly according to claim 8, characterized in that: The clutch part comprises a clutch member (91), an iron member (92) and two magnetic beads. The clutch member (91) and the input member (83) are integrally formed. The iron member (92) is connected to the transmission box (8). The two magnetic beads are respectively located on both sides of the clutch member (91) and adsorbed on the iron member (92). A clutch cavity (811) is provided on one side of the belt gear (81) facing the iron member (92). The clutch member (91) is located in the clutch cavity (811). Two grooves (812) adapted to the magnetic beads are provided in the clutch cavity (811).

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

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