Shell assembly of motor

Abstract

The utility model relates to the technical field of curtain motors, and discloses a shell assembly of a motor, which is characterized by comprising a shell, a transmission cavity arranged on the shell and connected with a transmission case, a cavity formed in the shell, a first circuit board fixedly connected in the cavity, two Hall sensors fixedly connected on the first circuit board, and a second circuit board fixedly connected on the shell. The two Hall sensors are located on one side or below the transmission cavity, the Hall sensor arranged on the first circuit board is moved to the position below or on one side of the transmission cavity to be close to the transmission cavity, the magnetic ring can be arranged in the transmission box, and rotation of the magnetic ring located in the transmission box is detected through the Hall sensors. The rotation direction and the rotation stroke of the output end of the motor are judged, and the occupied space brought by the mode that the magnetic ring is arranged in the shell is saved.

Description

TECHNICAL FIELD

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

[0002] The electric curtain drives the opening and closing of curtain cloth through the motor, and the motor is connected with a transmission box at the end of the track, so as to drive the belt drive in the track; for the design of different curtain boxes, the volume requirement of the motor is more harsh;

[0003] Because the motor needs to detect the opening and closing stroke of the curtain cloth, the stroke detection is usually realized through the cooperation of the hall sensor and the magnetic ring, and for the conventional hidden curtain motor, the stroke detection mechanism is arranged in the motor, which occupies a certain volume space, resulting in that the overall volume of the motor is large. UTILITARY MODEL

[0004] In view of the defects in the prior art, the utility model aims at providing a casing assembly of motor for reducing the space occupied by the stroke detection mechanism in the motor part.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a casing assembly of motor, comprising a casing, a transmission cavity connected with a transmission box is formed on the casing, a cavity is formed in the casing, a first circuit board is fixedly connected in the cavity, two hall sensors are fixedly connected on the first circuit board, and the two hall sensors are located on one side or below the transmission cavity.

[0006] As a further improvement of the utility model, the first circuit board is arranged perpendicularly to the central axis of the motor output end located at the transmission cavity.

[0007] As a further improvement of the utility model, it further comprises a second circuit board, the second circuit board is electrically connected with the first circuit board, the second circuit board is fixedly connected with the casing, and a power supply interface is arranged on the second circuit board.

[0008] As a further improvement of the utility model, the second circuit board is located on one side of the first circuit board and is arranged perpendicularly to the first circuit board.

[0009] As a further improvement of the utility model, the second circuit board is located above or below the first circuit board, and the second circuit board is arranged parallel to the first circuit board.

[0010] As a further improvement of the utility model, a hook groove is formed on the casing.

[0011] As a further improvement of the utility model, the shell comprises a bottom shell and a cover plate, and the bottom shell and the cover plate are detachably connected.

[0012] As a further improvement of the utility model, a support is fixedly connected in the shell, and the first circuit board is fixedly connected with the support.

[0013] The utility model discloses a Hall sensor arranged on the first circuit board is moved to the below or one side of transmission cavity, makes it close transmission cavity, can set up the magnetic ring in transmission box, judges the rotation direction and rotation stroke of motor output end through the rotation of the magnetic ring in transmission box to the detection of Hall sensor, saves the space occupied by the mode that the magnetic ring sets up in the shell. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is the sectional view of the utility model;

[0016] Figure 3 It is the structure schematic diagram of the first circuit board in the utility model;

[0017] Figure 4 It is the structure schematic diagram of the second circuit board in the utility model.

[0018] Reference signs: 1, shell;11, transmission cavity;12, cavity;13, hook groove;14, bottom shell;15, cover plate;16, support;2, first circuit board;21, Hall sensor;3, second circuit board;31, power supply interface. DETAILED DESCRIPTION

[0019] The utility model is further explained in detail in combination with the drawings and examples below. Same parts are indicated with same reference signs. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part.

[0020] Referring to Figures 1 to 4 The shell assembly of the motor of the embodiment comprises a shell 1, and a transmission cavity 11 for connecting a transmission box is formed in the shell 1. The transmission cavity 11 has an upper opening and a side opening, and the transmission box is installed between the shell 1 from top to bottom. The upper opening is arranged to facilitate the installation of the transmission box in the direction from top to bottom, and the side opening of the transmission cavity 11 is arranged to make a part of the transmission box located outside the transmission cavity 11 to connect the track, thereby shortening the overall length of the shell 1.

[0021] A cavity 12 is formed in the shell 1, which gives a mounting space for the motor, transmission assembly, and first circuit board 2, etc.

[0022] The first circuit board 2 is fixedly connected in the cavity 12, and two Hall sensors 21 are fixedly connected on the first circuit board 2, which are located on one side or below the transmission cavity 11.

[0023] The magnetic ring can be arranged in the transmission box, and the rotation of the magnetic ring in the transmission box is detected by the Hall sensor 21 to determine the rotation direction and rotation stroke of the motor output end, thereby saving the occupied space caused by arranging the magnetic ring in the shell 1.

[0024] In one embodiment, the two Hall sensors 21 can be arranged on one side of the transmission cavity 11, and at this time, the first circuit board 2 is arranged in parallel with the central axis of the motor output end.

[0025] The first circuit board 2 can also be segmented, wherein the first circuit board 2 includes a connecting segment, the Hall sensor 21 is arranged on the connecting segment, and the connecting segment is arranged in parallel with the central axis of the motor output end; and the magnetic pole of the magnetic ring is arranged on the side surface thereof.

[0026] In the present embodiment, the two Hall sensors 21 are arranged below the transmission cavity 11, which can save the overall length of the shell 1 compared to being arranged on one side of the transmission cavity 11.

[0027] At this time, the first circuit board 2 is horizontally arranged, the first circuit board 2 is arranged perpendicularly to the central axis of the motor output end located at the transmission cavity 11, and the magnetic pole of the magnetic ring is arranged on the bottom surface thereof.

[0028] Referring to Figure 1 , it further includes a second circuit board 3, which is electrically connected with the first circuit board 2, and the second circuit board 3 is fixedly connected with the shell 1, and the second circuit board 3 is provided with a power interface 31, preferably, the power interface 31 is a Type-c interface, and the power supply is externally connected through the power interface 31 for power supply.

[0029] An avoiding opening is formed on the shell 1 for avoiding the power interface 31.

[0030] In the present embodiment, referring to Figure 2 , Figure 4 , the second circuit board 3 is located on one side of the first circuit board 2 and is arranged perpendicularly to the first circuit board 2, and the second circuit board 3 is vertically arranged, so that the first circuit board 2 and the second circuit board 3 can directly contact each other, the interval distance is reduced, and the power interface 31 is located at the bottom of the second circuit board 3, which is convenient for realizing the function of externally connecting the power supply.

[0031] In another embodiment, the second circuit board 3 is located above or below the first circuit board 2, and the second circuit board 3 is arranged parallel to the first circuit board 2, which can reduce the overall length of the housing 1.

[0032] The motor includes a motor, which is driven by a transmission assembly and the output end at the transmission cavity 11. The motor is located above the first circuit board 2, and the transmission assembly is located below the first circuit board 2.

[0033] The second circuit board 3 can be positioned above the motor or below the transmission assembly;

[0034] Preferably, in this embodiment, the second circuit board 3 is located on the side of the motor; a slot is provided inside the housing 1, and the second circuit board 3 is inserted into the housing 1 through the slot.

[0035] The housing 1 is provided with a hook groove 13 for connecting the end hook. In this embodiment, the hook groove 13 is provided on the top side of the housing 1, and there are two hook grooves 13. The hook groove 13 used is selected according to the installation position and direction of the motor.

[0036] Reference Figure 1 As shown, the housing 1 includes a bottom shell 14 and a cover plate 15. The bottom shell 14 and the cover plate 15 are detachably connected by screws. The transmission cavity 11 is formed on the cover plate 15. A positioning groove is formed on the side wall of the transmission cavity 11. The positioning groove is used to fit with the outer shell of the transmission box for positioning.

[0037] The transmission box has raised ribs on its outer shell. The transmission box is connected to the positioning groove through the raised ribs. There are two positioning grooves and two raised ribs to increase the positioning stability between the two.

[0038] Reference Figure 4 As shown, a bracket 16 is fixedly connected inside the housing 1, and a first circuit board 2 is fixedly connected to the bracket 16. The bracket 16 is fixedly connected to the bottom housing 14 by bolts, and the first circuit board 2 is also fixedly connected to the bracket 16 by bolts. The first circuit board 2 is located above the bracket 16.

[0039] 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 housing assembly for an electric motor, characterized in that: Includes a housing (1), on which a transmission cavity (11) for connecting to a transmission box is opened, and a cavity (12) is formed inside the housing (1). A first circuit board (2) is fixedly connected inside the cavity (12), and two Hall sensors (21) are fixedly connected on the first circuit board (2). The two Hall sensors (21) are located on one side or below the transmission cavity (11).

2. The housing assembly of an electric motor according to claim 1, characterized in that: The first circuit board (2) is set perpendicular to the central axis of the motor output end located in the transmission cavity (11).

3. The housing assembly of an electric motor according to claim 2, characterized in that: It also includes a second circuit board (3), which is electrically connected to the first circuit board (2), and is fixedly connected to the housing (1). The second circuit board (3) is provided with a power interface (31).

4. The housing assembly of an electric motor according to claim 3, characterized in that: The second circuit board (3) is located on one side of the first circuit board (2) and is perpendicular to the first circuit board (2).

5. The housing assembly of an electric motor according to claim 3, characterized in that: The second circuit board (3) is located above or below the first circuit board (2), and the second circuit board (3) is arranged parallel to the first circuit board (2).

6. The housing assembly of an electric motor according to claim 1, characterized in that: The housing (1) is provided with a hook groove (13).

7. The housing assembly of an electric motor according to claim 1, characterized in that: The housing (1) includes a bottom shell (14) and a cover plate (15), and the bottom shell (14) and the cover plate (15) are detachably connected.

8. The housing assembly of an electric motor according to claim 1, characterized in that: A bracket (16) is fixedly connected inside the housing (1), and the first circuit board (2) is fixedly connected to the bracket (16).

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