Curtain motor

Abstract

The utility model relates to the technical field of electric curtains, and discloses a curtain motor which is characterized by comprising a speed reducer, an end cover and a connecting shell, the connecting shell abuts against the position between a planet carrier of the speed reducer and the end cover, a containing cavity is formed in the end, away from the end cover, of the connecting shell, and a gear ring is formed on the inner wall of the containing cavity; the containing cavity is used for containing part of the planet gears, the connecting shell serves as the other planet carrier, the gear ring on the connecting shell is meshed with the contained part of the planet gears, power transmission of the speed reducer is achieved, the planet carrier on the speed reducer and the connecting shell are integrally arranged, and therefore the number of overall parts is reduced, and installation steps are reduced; the number of parts of the clutch mechanism is reduced, and the iron piece can be directly fixed on the support.

Description

Technical Field

[0001] The utility model relates to the technical field of electric curtains, and more specifically to a curtain motor. Background Art

[0002] Electric curtains are also called automatic curtains, which include fully automatic curtains and semi-automatic curtains. The sensing basis of fully automatic curtains is sunlight and temperature. The curtains are automatically opened and closed under the set light and temperature. Semi-automatic curtains are controlled by remote control and intelligent voice.

[0003] Among them, for curtains with integrated flashlights, the curtain motor will have a built-in clutch mechanism, and the curtain motor also includes a reducer, which is generally a planetary gear reducer. A shell is set between the clutch mechanism and the reducer, resulting in too many parts during installation and cumbersome installation steps. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a curtain motor for reducing installation parts and installation steps.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a curtain motor, comprising a reducer, an end cover and a connecting shell, the connecting shell abutting between the reducer planetary carrier and the end cover, an accommodating cavity is formed at one end of the connecting shell away from the end cover, and a gear ring is provided on the inner wall of the accommodating cavity.

[0006] As a further improvement of the utility model, it further comprises an output member, the output end of the output member extends out of the end cover, and a clutch mechanism is arranged between the output member and the reducer.

[0007] As a further improvement of the utility model, the clutch mechanism includes an iron piece, a clutch piece and two magnetic beads. A bracket is integrally formed in the connecting shell. The iron piece is fixedly connected to a side of the bracket facing the end cover. A through hole is provided on the bracket. The clutch piece is transmission-connected to the output end of the reducer through the through hole. The two magnetic beads are respectively located on opposite sides of the clutch piece and are adsorbed on the iron piece. A clutch cavity is provided at one end of the output piece facing the iron piece, and two grooves matching the magnetic beads are formed on the inner wall of the clutch cavity.

[0008] As a further improvement of the utility model, a ring groove is provided on the bracket, and the iron piece is embedded in the ring groove.

[0009] As a further improvement of the present utility model, the clutch member includes a clutch section and a transmission section, the clutch section and the transmission section are integrally formed, the clutch section is located in the clutch cavity, and the transmission section is transmission-connected to the output end of the reducer.

[0010] As a further improvement of the present invention, the transmission section is spline-connected to the output end of the reducer.

[0011] As a further improvement of the present invention, the outer side surface of the transmission section is in contact with the inner wall of the through hole.

[0012] As a further improvement of the present invention, the outer side surface of the output end of the reducer is in contact with the inner wall of the through hole.

[0013] As a further improvement of the utility model, an axial hole is formed on the clutch member, and an axial rod is formed on the inner side of the output member, and the axial rod extends into the axial hole.

[0014] As a further improvement of the utility model, a magnetic ring is provided on the side of the output member facing the end cover, a circuit board is fixedly connected to the connecting shell or the end cover, and two Hall sensors corresponding to the magnetic ring are electrically connected to the circuit board.

[0015] The beneficial effects of the utility model are as follows: the accommodating cavity in the utility model is used to accommodate part of the planetary gears, and the connecting shell acts as another planetary carrier. The gear ring thereon meshes with part of the planetary gears accommodated thereon to realize the power transmission of the reducer, so that a planetary carrier on the reducer is integrally arranged with the connecting shell, thereby reducing the overall number of parts and the number of installation steps. The bracket and the connecting shell are integrally formed, which also reduces the number of parts of the clutch mechanism, and the iron parts can be directly fixed on the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 4 It is a schematic diagram of the structure of the connection shell toward the gear ring in the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the connection shell toward the bracket in the utility model;

[0021] Figure 6 It is a structural schematic diagram of the output member in the utility model;

[0022] Figure 7 It is a structural schematic diagram of the clutch member in the utility model;

[0023] Figure 8 It is a structural schematic diagram of the circuit board in the utility model.

[0024] Figure numerals: 1. reducer; 2. end cover; 3. connecting shell; 31. accommodating chamber; 32. ring gear; 33. bracket; 331. through hole; 332. annular groove; 4. output member; 41. clutch chamber; 411. groove; 42. shaft rod; 5. clutch mechanism; 51. iron member; 52. clutch member; 521. clutch section; 522. transmission section; 523. shaft hole; 53. magnetic bead; 6. circuit board. DETAILED DESCRIPTION

[0025] 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", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0026] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a curtain motor of this embodiment includes a reducer 1, an end cover 2 and a connecting shell 3, wherein the connecting shell 3 is abutted between the planetary frame of the reducer 1 and the end cover 2, wherein a convex rib is formed on the outer side of the connecting shell 3, and a positioning groove is formed on the inner side of the end cover 2, and the convex rib is embedded in the positioning groove, thereby limiting the circumferential rotation of the connecting shell 3, and preferably, two convex ribs can be provided;

[0027] The end cover 2 is detachably connected to the housing of the motor, thereby fixing the end cover 2.

[0028] A first step is formed at one end of the connecting shell 3 facing the end cover 2, and a second step is formed at one end of the end cover 2 facing the connecting shell 3. The first step is adapted to the second step to limit the connecting shell 3 in the axial direction and in a direction perpendicular to the axial direction; the axial direction is the axial direction of the output end of the reducer 1;

[0029] A third step is formed at one end of the connecting shell 3 facing the planetary frame of the reducer 1, and a fourth step is formed at one end of the planetary frame of the reducer 1 facing the connecting shell 3. Similarly, the third step is adapted to the fourth step and also serves to limit the connecting shell 3 in the axial direction and in the direction perpendicular to the axial direction.

[0030] An accommodating chamber 31 is formed at one end of the connecting shell 3 away from the end cover 2, and a ring gear 32 is provided on the inner wall of the accommodating chamber 31. The accommodating chamber 31 is used to accommodate part of the reducer 1, specifically, part of the planetary gears. The connecting shell 3 acts as another planetary carrier, and the ring gear 32 thereon meshes with the accommodated part of the planetary gears to realize the power transmission of the reducer 1, so that a planetary carrier on the reducer 1 is integrally arranged with the connecting shell 3, thereby reducing the overall number of parts and reducing the installation steps.

[0031] Reference Figure 4 As shown, the gear ring 32 and the connecting shell 3 can be plugged in or integrally formed;

[0032] When plug-in is used, circumferentially evenly distributed insertion strips are formed on the outer side of the gear ring 32, and circumferentially evenly distributed slots are opened on the inner wall of the connecting shell 3, and the insertion strips are inserted into the corresponding slots.

[0033] The output member 4 is also included. The output end of the output member 4 extends out of the end cover 2. The output member 4 includes an output shaft. The output shaft extends out of the end cover 2. An output hole is formed on the end cover 2. The output shaft passes through the output hole.

[0034] A clutch mechanism 5 is provided between the output member 4 and the reducer 1 , and the clutch function between the reducer 1 and the output member 4 is realized by the clutch mechanism 5 .

[0035] Reference Figure 3 As shown, the clutch mechanism 5 includes an iron piece 51, a clutch piece 52 and two magnetic beads 53. A bracket 33 is integrally formed in the connecting shell 3. The bracket 33 separates the reducer 1 and the clutch mechanism 5. The iron piece 51 is fixedly connected to a side of the bracket 33 facing the end cover 2. The bracket 33 and the connecting shell 3 are integrally formed, which also reduces the number of parts of the clutch mechanism 5. The iron piece 51 can be directly fixed on the bracket 33; in the prior art, an input piece is also required to fix the iron piece 51 through the input piece; the bracket 33 serves as this input piece.

[0036] Reference Figure 5 As shown, a through hole 331 is provided on the bracket 33, and the clutch 52 is transmission-connected to the output end of the reducer 1 through the through hole 331. The two magnetic beads 53 are respectively located on opposite sides of the clutch 52 and adsorbed on the iron piece 51. A clutch cavity 41 is provided at one end of the output piece 4 facing the iron piece 51. Two grooves 411 adapted to the magnetic beads 53 are formed on the inner wall of the clutch cavity 41. When the reducer 1 drives the clutch 52 to rotate, the clutch 52 will push the two magnetic beads 53 to move, so that the upper part of the magnetic beads 53 is embedded in the groove 411, and the magnetic beads 53 are stuck between the clutch 52 and the output piece 4. The rotation of the clutch 52 can drive the output piece 4 to rotate at the same time, thereby realizing the function of transmitting the power of the reducer 1 to the output piece 4.

[0037] When the clutch member 52 does not rotate, the magnetic beads 53 are sucked back onto the iron member 51 and adsorbed to the iron member 51 , and the clutch member 52 is disengaged from the output member 4 .

[0038] Reference Figure 5 As shown, the bracket 33 is provided with an annular groove 332 , and the iron piece 51 is embedded in the annular groove 332 , which saves the space occupied by the installation of the iron piece 51 , and the annular groove 332 plays a role in limiting the position of the iron piece 51 .

[0039] Reference Figure 7 As shown, the clutch member 52 includes a clutch section 521 and a transmission section 522 . The clutch section 521 and the transmission section 522 are integrally formed. The clutch section 521 is located in the clutch cavity 41 , and the transmission section 522 is transmission-connected to the output end of the reducer 1 .

[0040] The transmission section 522 is spline-connected to the output end of the reducer 1. There are many ways to connect the transmission section 522 to the output end of the reducer 1. Among them, the spline connection is more convenient. A polygonal hole can also be opened at the output end of the reducer 1, and the transmission section 522 and the polygonal hole are plugged together to achieve transmission connection. The polygonal hole can also be a quadrilateral, etc.

[0041] In one embodiment, the outer side surface of the transmission section 522 fits with the inner wall of the through hole 331 to ensure the coaxiality between the transmission section 522 and the through hole 331 .

[0042] In another embodiment, the outer side surface of the output end of the reducer 1 fits with the inner wall of the through hole 331, thereby ensuring the coaxiality between the output end of the reducer 1 and the through hole 331, and the transmission connection between the transmission section 522 and the output end of the reducer 1 also ensures the coaxiality between the transmission section 522 and the output end of the reducer 1, thereby realizing stable power transmission.

[0043] Reference Figure 6 and Figure 7 As shown, the clutch 52 is provided with an axial hole 523, wherein the axial hole 523 passes through both ends of the clutch 52, and a shaft rod 42 is formed on the inner side of the output member 4, and the shaft rod 42 extends into the axial hole 523. The arrangement of the shaft rod 42 and the axial hole 523 can ensure the coaxiality between the clutch 52, the output end of the reducer 1 and the output member 4.

[0044] Reference Figure 8 As shown, a magnetic ring is provided on the side of the output member 4 facing the end cover 2, a circuit board 6 is fixedly connected to the connecting shell 3 or the end cover 2, and two Hall sensors corresponding to the magnetic ring are electrically connected to the circuit board 6. Preferably, the circuit board 6 is fixedly connected to the connecting shell 3, and an annular groove is provided on the side of the output member 4 facing the end cover 2, and the magnetic ring is fixedly connected to the annular groove. When the output member 4 rotates, the stroke and direction can be detected by the Hall sensor.

[0045] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A curtain motor, characterized in that: The invention comprises a reducer (1), an end cover (2) and a connecting shell (3); the connecting shell (3) is abutted between a planetary carrier of the reducer (1) and the end cover (2); an accommodating cavity (31) is formed at one end of the connecting shell (3) away from the end cover (2); and a gear ring (32) is provided on the inner wall of the accommodating cavity (31).

2. A curtain motor according to claim 1, characterized in that: It also comprises an output member (4), the output end of the output member (4) extending out of the end cover (2), and a clutch mechanism (5) being arranged between the output member (4) and the reducer (1).

3. A curtain motor according to claim 2, characterized in that: The clutch mechanism (5) comprises an iron piece (51), a clutch piece (52) and two magnetic beads (53); a bracket (33) is integrally formed in the connection shell (3); the iron piece (51) is fixedly connected to a side surface of the bracket (33) facing the end cover (2); a through hole (331) is provided on the bracket (33); the clutch piece (52) is transmission-connected to the output end of the reducer (1) through the through hole (331); the two magnetic beads (53) are respectively located on opposite sides of the clutch piece (52) and are adsorbed on the iron piece (51); a clutch cavity (41) is provided at one end of the output piece (4) facing the iron piece (51); and two grooves (411) adapted to the magnetic beads (53) are formed on the inner wall of the clutch cavity (41).

4. A curtain motor according to claim 3, characterized in that: The bracket (33) is provided with an annular groove (332), and the iron piece (51) is embedded in the annular groove (332).

5. The curtain motor according to claim 3, characterized in that: The clutch member (52) comprises a clutch section (521) and a transmission section (522); the clutch section (521) and the transmission section (522) are integrally formed; the clutch section (521) is located in the clutch cavity (41); and the transmission section (522) is transmission-connected to an output end of the reducer (1).

6. A curtain motor according to claim 5, characterized in that: The transmission section (522) is spline-connected to the output end of the reducer (1).

7. The curtain motor according to claim 5, characterized in that: The outer side surface of the transmission section (522) is in contact with the inner wall of the through hole (331).

8. The curtain motor according to claim 5, characterized in that: The outer side surface of the output end of the reducer (1) is in contact with the inner wall of the through hole (331).

9. The curtain motor according to claim 3, characterized in that: The clutch member (52) is provided with an axial hole (523), and a shaft rod (42) is formed on the inner side of the output member (4), and the shaft rod (42) extends into the axial hole (523).

10. A curtain motor according to claim 2, characterized in that: A magnetic ring is provided on the side of the output member (4) facing the end cover (2); a circuit board (6) is fixedly connected to the connection shell (3) or the end cover (2); and two Hall sensors corresponding to the magnetic ring are electrically connected to the circuit board (6).

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