Motor shell structure

Abstract

According to the technical scheme, the motor shell structure is characterized in that the motor shell structure comprises a shell, a containing cavity is formed in the shell and comprises a first cavity body and a second cavity body, the first cavity body is communicated with the second cavity body, the first cavity body is located at one position of the peripheral side of the second cavity body, and the second cavity body is located at the other position of the peripheral side of the second cavity body. The circuit board is moved from one side of the end portion of the motor assembly to one position of the peripheral side, the occupied space of the shell in the length direction is reduced, the overall length is shortened, when the motor assembly comprises the stroke detection mechanism, the magnetic ring is arranged on the motor assembly, and the Hall sensor is arranged on the circuit board, so that the Hall sensor can correspond to the magnetic ring; the motor assembly is more convenient to use, a control panel for the Hall sensor does not need to be additionally arranged, and the circuit board can be directly and electrically connected with the motor assembly and can also be used by the stroke detection mechanism.

Description

Technical Field

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

[0002] There are many types of electric curtains, including electric venetian blinds, electric honeycomb curtains, and dream curtains. Among them, for electric venetian blinds, a tubular motor is used. The tubular motor includes a motor assembly and a circuit board. The motor assembly includes a motor and a reducer, and the reducer is generally a planetary gear reducer. The circuit board includes a control board, and the control board is electrically connected to the motor, and the output of the motor is controlled through the control board.

[0003] However, for a conventional venetian blind motor, its circuit board and motor assembly are arranged in a straight line, occupying more space in the length direction. For a venetian blind in a short space, there will be a problem of insufficient length space. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a motor housing structure for reducing the volume in the length direction.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A motor housing structure includes a housing. An accommodation cavity is formed inside the housing. The accommodation cavity includes a first cavity and a second cavity. The first cavity communicates with the second cavity, and the first cavity is located at one place on the periphery of the second cavity. The first cavity is used to set the circuit board, and the second cavity is used to set the motor assembly. An interface is opened on the housing, and the interface communicates with the first cavity. The interface is used to connect an AC-DC adapter.

[0006] As a further improvement of the utility model, the first cavity extends from the head end of the second cavity to the tail end of the second cavity.

[0007] As a further improvement of the utility model, the housing includes a first end cover and a connecting shell, and the first end cover is detachably connected to the connecting shell.

[0008] As a further improvement of the utility model, a first slot is formed on the connecting shell and / or the first end cover, and the circuit board is inserted into the first slot.

[0009] As a further improvement of the utility model, the housing further includes a second end cover, and the second end cover is detachably connected to the connecting shell.

[0010] As a further improvement of the present utility model, a second slot is provided between the second end cover, between the second end cover and the connection shell, or between the first end cover and the second end cover, and the circuit board is inserted into the second slot.

[0011] As a further improvement of the present utility model, the first end cover includes a first extension section that extends into the accommodation cavity. An avoidance hole is provided on the first extension section, and the avoidance hole is located between the circuit board and the motor assembly.

[0012] As a further improvement of the present utility model, a positioning groove is provided at one end of the first extension section facing the second end cover.

[0013] As a further improvement of the present utility model, the second end cover includes a second extension section that extends into the accommodation cavity. A plurality of convex ribs are formed inside the second extension section, and the ends of the convex ribs abut against the motor assembly.

[0014] As a further improvement of the present utility model, through slots are provided at the ends of the outer shell from bottom to top.

[0015] Advantages of the present utility model: In the present utility model, the circuit board is moved from one side at the end of the motor assembly to a position on the circumferential side, reducing the occupied space in the length direction of the outer shell and shortening the overall length. When the motor assembly includes a stroke detection mechanism, the magnetic ring is provided on the motor assembly, and the Hall sensor is provided on the circuit board, so that the Hall sensor can correspond to the magnetic ring, which is more convenient and does not require an additional control board for the Hall sensor. The circuit board can be directly electrically connected to the motor assembly and can also be used by the stroke detection mechanism. Description of the Drawings

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

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

[0018] Figure 3 is a structural schematic diagram of the first end cover in the present utility model;

[0019] Figure 4 is a structural schematic diagram of the second end cover in the present utility model;

[0020] Figure 5 is a cross-sectional view of the present utility model with the motor assembly and the circuit board installed.

[0021] Reference numerals: 1, housing; 11, receiving cavity; 111, first cavity; 112, second cavity; 12, interface; 13, first end cap; 131, first slot; 132, first extension; 133, relief hole; 134, positioning groove; 14, connecting shell; 15, second end cap; 151, second slot; 152, second extension; 153, rib; 16, through slot. Detailed implementation manners

[0022] The present utility model will be further described in detail below in conjunction with the drawings and embodiments. The same components are denoted 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 the directions in the drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component, respectively.

[0023] Refer to Figures 1 to 5 As shown, a motor housing structure of this embodiment includes a housing 1. A receiving cavity 11 is formed inside the housing 1. The receiving cavity 11 includes a first cavity 111 and a second cavity 112. A partition can be provided between the first cavity 111 and the second cavity 112 for separation. In this solution, a partition is not used;

[0024] The first cavity 111 communicates with the second cavity 112, and the first cavity 111 is located at one place on the circumferential side of the second cavity 112, that is, the first cavity 111 can be located above, below, in the front or in the rear of the second cavity 112. Preferably, in this embodiment, the first cavity 111 is located above the second cavity 112. This setting of the position facilitates the transmission between the motor assembly and the rope winding device. A circuit board is arranged in the first cavity 111. Among them, the circuit board includes a control board, and the control board is electrically connected to the motor assembly. The second cavity 112 is used to arrange the motor assembly. The motor assembly includes a motor and a speed reducer. The output end of the motor is connected to the input end of the speed reducer. Moving the circuit board from one side at the end of the motor assembly to one place on the circumferential side reduces the occupied space in the length direction of the housing 1 and shortens the overall length;

[0025] The space in the vertical direction of the housing 1 is increased, and the circuit board is arranged in the increased space. When the motor assembly includes a stroke detection mechanism, the stroke detection mechanism includes a magnetic ring and a Hall sensor. The magnetic ring is arranged on the motor assembly, and the Hall sensor is arranged on the circuit board, so that the Hall sensor can correspond to the magnetic ring, which is more convenient and does not require an additional control board for the Hall sensor. The circuit board can be directly electrically connected to the motor assembly and can also be used by the stroke detection mechanism;

[0026] The housing 1 is provided with an interface 12 which communicates with the first cavity 111. The interface 12 is used to connect an AC-DC adapter to achieve the function of converting AC to DC.

[0027] Refer to Figure 2 As shown, the first cavity 111 extends from the head end to the tail end of the second cavity 112, increasing the installable range of the circuit board.

[0028] Refer to Figure 2 、 Figure 3 and Figure 4 As shown, in one embodiment, the housing 1 includes a first end cap 13 and a connecting shell 14. The first end cap 13 is detachably connected to the connecting shell 14. The connecting shell 14 is a component integrally formed at one end, and the other end is detachably connected to the first end cap 13. The first end cap 13 and the connecting shell 14 are detachably connected by bolts. Bolts are provided at the four corners of the first end cap 13 to increase the connection stability with the connecting shell 14.

[0029] Refer to Figure 2 and Figure 3 As shown, a first slot 131 is formed on the connecting shell 14 and / or the first end cap 13, and the circuit board is inserted into the first slot 131. Among them, the connection method of the circuit board can be: a. The first slot 131 is formed on the inner side wall of the connecting shell 14. Specifically, in order to increase the installation stability of the circuit board, first slots 131 can be provided on both opposite sides of the inner wall of the connecting shell 14, and the circuit board is inserted between two opposite first slots 131;

[0030] b. The first slot 131 is formed on the inner wall of the first end cap 13; c. First slots 131 are provided on the inner walls of both the first end cap 13 and the connecting shell 14, and the circuit board is inserted between the first end cap 13 and the connecting shell 14;

[0031] Among them, the first slot 131 can be formed between two protruding strips. The two protruding strips are arranged vertically, and the protruding strips can be integrally formed on the first end cap 13 and / or the connecting shell 14.

[0032] Refer to Figure 2 、 Figure 4 As shown, in another embodiment, the housing 1 further includes a second end cap 15. The second end cap 15 is detachably connected to the connecting shell 14. Both ends of the connecting shell 14 are open, and the two openings are respectively connected by the first end cap 13 and the second end cap 15. Among them, the second end cap 15 and the connecting shell 14 are also detachably connected by bolts. Bolts are provided at the four corners of the second end cap 15.

[0033] A second end cover 15, a second slot 151 is provided between the second end cover 15 and the connection shell 14 or between the first end cover 13 and the second end cover 15, and the circuit board is inserted into the second slot 151. Among them, the connection method of the circuit board can also be: d. The second slot 151 is formed on the inner wall of the second end cover 15, and the circuit board is inserted into the second slot 151; e. The second slot 151 is formed on the inner walls of both the second end cover 15 and the connection shell 14, and the circuit board is inserted between the second end cover 15 and the connection shell 14. At this time, there is no first slot 131 on the connection shell 14; f. The second slot 151 is formed on the inner walls of both the first end cover 13 and the second end cover 15, and the circuit board is inserted on the first end cover 13 and the second end cover 15. At this time, the second slot 151 on the first end cover 13 can be regarded as the first slot 131;

[0034] Preferably, in the solution of the present application, the circuit board is inserted between the first end cover 13 and the second end cover 15, which is more convenient for the processing of the connection shell 14.

[0035] Refer to Figure 3 As shown, the first end cover 13 includes a first extension section 132. The first extension section 132 extends into the accommodation cavity 11. An avoidance hole 133 is formed on the first extension section 132. The avoidance hole 133 is located between the circuit board and the motor assembly. The setting of the avoidance hole 133 enables the first extension section 132 not to block the induction between the Hall sensor and the magnetic ring;

[0036] Among them, the first slot 131 or the second slot 151 can be formed on the inner wall of the first extension section 132. Preferably, the first slot 131 or the second slot 151 is provided on both opposite sides of the inner wall of the first extension section 132;

[0037] The cross-section of the first extension section 132 is circular, which can better support the motor assembly.

[0038] A positioning groove 134 is formed at one end of the first extension section 132 facing the second end cover 15. Among them, two positioning grooves 134 are formed, which are respectively located on opposite sides of the first extension section 132. In addition, positioning strips are formed on the outer side of the motor assembly, and two positioning strips are also provided, corresponding to the positioning grooves 134 respectively. The positioning strips are inserted into the corresponding positioning grooves 134, thereby positioning the motor assembly and increasing the stability of the motor assembly.

[0039] Refer to Figure 4 As shown, the second end cover 15 includes a second extension section 152. The second extension section 152 extends into the accommodation cavity 11. A plurality of ribs 153 are formed inside the second extension section 152, and the ends of the ribs 153 abut against the motor assembly.

[0040] One end of the motor assembly extends into the first extension section 132, and the other end of the motor assembly extends into the second extension section 152;

[0041] Among them, the convex rib 153 plays a role in laterally positioning the motor assembly and can prevent the lateral movement of the motor assembly;

[0042] The cross-section of the second extension section 152 is also circular, which can better support the motor assembly. Among them, the convex ribs 153 are evenly distributed circumferentially along the central axis of the second extension section 152.

[0043] Refer to Figure 1 and Figure 3 As shown, through slots 16 extending from bottom to top are provided at the ends of the housing 1. The through slots 16 are used to connect the shock pads. Two through slots 16 are provided at the ends of the housing 1, and the two through slots 16 are oppositely arranged. Connection strips are formed on the shock pads, and the connection strips are inserted from bottom to top, so that the installation of the shock pads can be completed;

[0044] The through slots 16 are provided on the first end cover 13 and the second end cover 15.

[0045] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A motor housing structure, characterized in that: The invention comprises a shell (1), wherein a housing cavity (11) is formed in the shell (1), wherein the housing cavity (11) comprises a first cavity (111) and a second cavity (112), wherein the first cavity (111) is connected to the second cavity (112), and the first cavity (111) is located at a position on the periphery of the second cavity (112), wherein a circuit board is arranged in the first cavity (111), and wherein a motor assembly is arranged in the second cavity (112), wherein an interface (12) is provided on the shell (1), wherein the interface (12) is connected to the first cavity (111), and wherein the interface (12) is used to connect an AC-DC adapter.

2. A motor housing structure according to claim 1, characterized in that: The first cavity (111) extends from a head end of the second cavity (112) to a tail end of the second cavity (112).

3. The motor housing structure according to claim 1, characterized in that: The housing (1) comprises a first end cover (13) and a connecting shell (14), and the first end cover (13) and the connecting shell (14) are detachably connected.

4. A motor housing structure according to claim 3, characterized in that: A first slot (131) is formed on the connection shell (14) and / or the first end cover (13), and the circuit board is plugged into the first slot (131).

5. The motor housing structure according to claim 3, characterized in that: The housing (1) further comprises a second end cover (15), wherein the second end cover (15) is detachably connected to the connecting housing (14).

6. A motor housing structure according to claim 5, characterized in that: A second slot (151) is provided between the second end cover (15), between the second end cover (15) and the connecting shell (14), or between the first end cover (13) and the second end cover (15), and the circuit board is plugged into the second slot (151).

7. The motor housing structure according to claim 5, characterized in that: The first end cover (13) comprises a first extension section (132), the first extension section (132) extends into the accommodating cavity (11), and a avoidance hole (133) is provided on the first extension section (132), and the avoidance hole (133) is located between the circuit board and the motor assembly.

8. A motor housing structure according to claim 7, characterized in that: A positioning groove (134) is formed at one end of the first extension section (132) facing the second end cover (15).

9. The motor housing structure according to claim 5, characterized in that: The second end cover (15) comprises a second extension section (152), the second extension section (152) extends into the accommodating cavity (11), a plurality of convex ribs (153) are formed in the second extension section (152), and the ends of the convex ribs (153) abut against the motor assembly.

10. The motor housing structure according to claim 1, characterized in that: The ends of the shell (1) are each provided with a through slot (16) extending from bottom to top.

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