Grounding structure of curtain motor

Abstract

The utility model relates to the technical field of curtain motors, and discloses a grounding structure of a curtain motor, which is characterized in that the grounding structure comprises a grounding piece, a motor end cover and a connecting column formed on the motor end cover, the connecting column is provided with a through hole, a bolt is arranged in the through hole, the grounding piece is provided with a sleeve hole, and the sleeve hole is matched with a limiting piece through a limiting hole. One end, deviating from the bolt, of the grounding piece is connected with a grounding wire, rotation of the grounding piece is limited, the grounding wire can be prevented from being separated from the grounding piece, and grounding failure is prevented. The protrusion plays a limiting role, abuts against the outer surface of the bolt and is matched with the limiting piece. And the movement of the grounding piece in the horizontal direction can be synchronously limited.

Description

Technical Field

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

[0002] The use of electric curtains is becoming more and more popular. Among them, an electric curtain includes a curtain motor, which drives the opening and closing of the curtain, and even the dimming of the curtain. In order to ensure the safety during the use of the motor, it is necessary to ground the curtain motor. Grounding can effectively conduct the static electricity or leakage current that may accumulate on the motor housing into the ground, protecting the safety of users.

[0003] In the utility model with the application number CN202120764962.X, a motor assembly of an electric curtain is disclosed, which includes a motor end cover, a connection terminal and a grounding bolt. The connection terminal is sleeved on the grounding bolt, and the grounding bolt is installed on the motor end cover. During the installation process, the connection terminal will rotate relatively and is difficult to position. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a grounding structure of a curtain motor, which is convenient for the installation and positioning of the grounding part.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A grounding structure of a curtain motor, including a grounding part, a motor end cover and a connecting column formed on the motor end cover. A through hole is provided on the connecting column, and a bolt is arranged in the through hole. A sleeve hole is provided on the grounding part, and the grounding part is sleeved on the bolt through the sleeve hole. It is characterized in that: a limiting part is formed on the motor end cover, and a limiting hole is formed on the grounding part, and the limiting part passes through the limiting hole.

[0006] As a further improvement of the utility model, the limiting part and the connecting column are integrally formed.

[0007] As a further improvement of the utility model, a plurality of protrusions are formed in the sleeve hole, and the plurality of protrusions are evenly distributed circumferentially along the central axis of the sleeve hole.

[0008] As a further improvement of the utility model, one end of the protrusion facing the central axis of the sleeve hole is arc-shaped.

[0009] As a further improvement of the utility model, the protrusion is inclined, and one end of the protrusion extends out of the bottom surface of the grounding part at the sleeve hole.

[0010] As a further improvement of the utility model, the other end of the protrusion extends out of the top surface of the grounding part at the sleeve hole.

[0011] As a further improvement of the present utility model, the limiting hole is polygonal.

[0012] As a further improvement of the present utility model, a clamping member is provided at one end of the grounding member facing away from the sleeve hole, and the clamping member is used to clamp the wire.

[0013] As a further improvement of the present utility model, the inner diameter of the through hole decreases in the direction from the end of the through hole facing away from the grounding member to the end close to the grounding member.

[0014] As a further improvement of the present utility model, it further includes a motor housing, and a stud is formed on the motor housing, and the bolt is threadedly connected with the stud.

[0015] Beneficial effects of the present utility model: Through the cooperation of the limiting hole and the limiting member, the grounding member is limited, which can prevent the grounding member from rotating around the bolt. One end of the grounding member facing away from the bolt is connected to the grounding wire. Limiting the rotation of the grounding member can prevent the grounding wire from detaching from the grounding member and prevent grounding failure. The protrusion plays a limiting role. The protrusion abuts against the outer surface of the bolt, and the protrusion cooperates with the limiting member to simultaneously limit the movement of the grounding member in the horizontal direction. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the structure inside the motor housing of the present utility model;

[0017] Figure 2 is a schematic diagram of the structure of the grounding member of the present utility model;

[0018] Figure 3 is a schematic diagram of the structure of the motor end cover of the present utility model;

[0019] Figure 4 is a schematic diagram of the structure of the motor housing of the present utility model;

[0020] Figure 5 is a cross-sectional view of the through hole of the present utility model;

[0021] Figure 6 is the present utility model Figure 5 an enlarged schematic diagram of part A.

[0022] Reference numerals: 1. Grounding member; 11. Sleeve hole; 12. Limiting hole; 121. Protrusion; 13. Clamping member; 2. Motor end cover; 21. Connecting column; 22. Through hole; 23. Limiting member; 3. Bolt; 4. Motor housing; 41. Stud. Detailed Embodiments

[0023] The present utility model will be further described in detail below in conjunction with the accompanying 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.

[0024] Referring to Figure 1 , Figure 2 and Figure 3 As shown, a grounding structure of a curtain motor in this embodiment includes a grounding member 1, a motor end cover 2, and a connecting column 21 formed on the motor end cover 2. The motor end cover 2 is detachably connected to the motor housing 4. A through hole 22 is formed in the connecting column 21, and a cover is detachably connected to the end of the through hole 22 facing away from the grounding member 1. The material of the cover can be silicone, rubber, silicone rubber, etc., which is used to seal the through hole 22. On the one hand, it can prevent the bolt 3 from rusting, and on the other hand, it can increase the aesthetic degree.

[0025] A bolt 3 is arranged in the through hole 22, a sleeve hole 11 is formed on the grounding member 1, and the grounding member 1 is sleeved on the bolt 3 through the sleeve hole 11. A limiting member 23 is formed on the motor end cover 2, and a limiting hole 12 is formed on the grounding member 1. The limiting member 23 passes through the limiting hole 12. Through the cooperation of the limiting hole 12 and the limiting member 23, the grounding member 1 is limited, which can prevent the grounding member 1 from rotating around the bolt 3. One end of the grounding member 1 facing away from the bolt 3 is connected to the grounding wire. Limiting the rotation of the grounding member 1 can prevent the grounding wire from detaching from the grounding member 1 and prevent grounding failure.

[0026] Among them, the cross-sectional shape of the limiting hole 12 is not limited. In this embodiment, the limiting hole 12 is polygonal. Preferably, the cross-section of the limiting hole 12 is quadrilateral. Compared with a circle, the quadrilateral limiting member 23 is easier to process.

[0027] Referring to Figure 3 As shown, the limiting member 23 is integrally formed with the connecting column 21. Since the length of the limiting member 23 is relatively long and the width is small, being formed on the connecting column 21 can improve the stability of the limiting member 23, prevent the limiting member 23 from breaking, and is convenient for processing.

[0028] Referring to Figure 2 As shown, a plurality of protrusions 121 are formed in the sleeve hole 11. The plurality of protrusions 121 are evenly distributed circumferentially along the central axis of the sleeve hole 11. The protrusions 121 play a limiting role. The protrusions 121 abut against the outer surface of the bolt 3. The protrusions 121 cooperate with the limiting member 23 to synchronously limit the movement of the grounding member 1 in the horizontal direction.

[0029] One end of the protrusion 121 facing the central axis of the socket hole 11 is arc-shaped. The arc-shaped design is used to better fit the shape of the bolt 3.

[0030] Referring to Figure 1 , Figure 2 As shown, the protrusion 121 is inclined. One end of the protrusion 121 extends out of the bottom surface of the grounding part 1 at the socket hole 11. Among them, one end of the protrusion 121 facing the connecting column 21 extends out of the bottom surface of the grounding part 1 at the socket hole 11, so that this end can abut against the top surface of the connecting column 21. After the motor housing 4 and the connecting column 21 are threadedly connected, this end will deform, increasing the abutting force between the protrusion 121 and the stud 41 and making the connection of the grounding part 1 more stable.

[0031] The other end of the protrusion 121 extends out of the top surface of the grounding part 1 at the socket hole 11, so that this end can abut against the stud 41 on the motor housing 4. After the motor housing 4 and the connecting column 21 are threadedly connected, this end will also deform, increasing the abutting force between the protrusion 121 and the stud 41 and making the connection of the grounding part 1 more stable.

[0032] A clamping part 13 is arranged at one end of the grounding part 1 away from the socket hole 11. The clamping part 13 is used to clamp the wire. Under an external force, the clamping part 13 can deform. The clamping part 13 includes two clamping pieces integrally formed with the grounding part 1. The two clamping pieces approach each other and clamp the connecting wire between the two clamping pieces.

[0033] Referring to Figure 5 and Figure 6 As shown, the inner diameter of the through hole 22 decreases from the end of the through hole 22 away from the grounding part 1 to the end close to the grounding part 1. When the bolt 3 is installed, the head of the bolt 3 abuts against the inner wall of the through hole 22. As the bolt 3 is tightened, the abutting force between the head of the bolt 3 and the through hole 22 will increase, improving the stability of the bolt 3.

[0034] Among them, the through hole 22 can also be a counterbore hole to facilitate hiding the bolt 3.

[0035] Referring to Figure 4 As shown, it further includes a motor housing 4. A stud 41 is formed on the motor housing 4. The bolt 3 is threadedly connected with the stud 41. After the bolt 3 passes through the through hole 22, a threaded connection is formed with the stud 41, thereby realizing the connection between the motor housing 4 and the motor end cover 2.

[0036] The above is only the preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A grounding structure for a curtain motor, comprising a grounding member (1), a motor end cover (2), and a connecting column (21) formed on the motor end cover (2), wherein the connecting column (21) is provided with a through hole (22), a bolt (3) is arranged in the through hole (22), the grounding member (1) is provided with a sleeve hole (11), the grounding member (1) is sleeved on the bolt (3) through the sleeve hole (11), and is characterized in that: A limiting member (23) is formed on the motor end cover (2), a limiting hole (12) is formed on the grounding member (1), and the limiting member (23) passes through the limiting hole (12).

2. The grounding structure of a curtain motor according to claim 1, characterized in that: The limiting member (23) and the connecting column (21) are integrally formed.

3. The grounding structure of a curtain motor according to claim 1, characterized in that: A plurality of protrusions (121) are formed in the sleeve hole (11), and the plurality of protrusions (121) are evenly distributed in the circumferential direction along the central axis of the sleeve hole (11).

4. The grounding structure of a curtain motor according to claim 3, characterized in that: One end of the protrusion (121) facing the central axis of the sleeve hole (11) is arc-shaped.

5. The grounding structure of a curtain motor according to claim 3, characterized in that: The protrusion (121) is arranged obliquely, and one end of the protrusion (121) extends out of the bottom surface of the grounding member (1) located at the sleeve hole (11).

6. The grounding structure of a curtain motor according to claim 5, characterized in that: The other end of the protrusion (121) extends out of the top surface of the grounding member (1) located at the sleeve hole (11).

7. The grounding structure of a curtain motor according to claim 1, characterized in that: The limiting hole (12) is polygonal.

8. The grounding structure of a curtain motor according to claim 1, characterized in that: A clamping piece (13) is provided at one end of the grounding piece (1) away from the sleeve hole (11), and the clamping piece (13) is used for clamping the electric wire.

9. The grounding structure of a curtain motor according to claim 1, characterized in that: The inner diameter of the through hole (22) decreases along a direction from an end of the through hole (22) away from the grounding member (1) to an end of the through hole (22) close to the grounding member (1).

10. A grounding structure for a curtain motor according to any one of claims 1 to 9, characterized in that: It also comprises a motor housing (4), on which a stud (41) is formed, and the bolt (3) is threadedly connected to the stud (41).

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