A noise-reducing motor assembly

Abstract

This utility model discloses a noise-reducing motor assembly, relating to the field of motor noise reduction technology. The noise-reducing motor assembly includes a motor body, a fixed base at the lower end of the motor body, and a noise-reducing component at the lower end of the fixed base. A rotating shaft is located at the center of the lower surface of the motor body. Fixing grooves are provided on the upper surface of each corner of the fixed base, and mounting holes are provided in the ground of the fixing grooves. The noise-reducing component includes an upper top plate, a center plate at the lower end of the upper top plate, and a lower bottom plate at the lower end of the center plate. A first shaft groove is located at the center of the upper top plate, and a third shaft groove is located at the center of the lower bottom plate. This solution solves the problems of existing motor assemblies, where vibration causes hard collisions with the fixing components, resulting in high noise levels, and the rotating shaft causing noise pollution due to friction at the connection points.

Description

Technical Field

[0001] This utility model relates to the field of motor noise reduction technology, specifically to a noise-reducing motor assembly. Background Technology

[0002] A motor is a device that converts electrical energy into mechanical energy. It is widely used in various equipment and systems and is composed of multiple motor components, mainly consisting of a rotor, stator, shaft, brushes, commutator, and housing.

[0003] For example, Chinese authorized patent CN209329864U (A Motor Noise Reduction Structure) includes a motor, a load, a motor bracket, and a flexible isolation component; the flexible isolation component includes at least an enhanced flexible connector and a flexible deformable component; the motor includes a stator, an inner rotor, a shaft, and bearings; the enhanced flexible connector has two independent parts, one part fixed to the stator and the other part fixed to the motor bracket, with the flexible deformable component fixedly connected between the two parts. This utility model uses a flexible isolation connector to fix the motor to the motor bracket, avoiding direct rigid contact between the motor and the bracket, and basically achieving silent operation of the motor.

[0004] However, existing motor assemblies cause loud noise due to vibration and hard collisions with the fixing parts during use. Furthermore, the rotating shaft generates noise due to rotational friction at the connection point, resulting in noise pollution. Therefore, they do not meet the current requirements. To address this, we propose a noise-reducing motor assembly. Utility Model Content

[0005] The purpose of this utility model is to provide a noise-reducing motor assembly to solve the problems mentioned in the background art, such as the noise caused by vibration and hard collision with the fixing parts during use, and the noise caused by rotational friction at the connection when the shaft rotates.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a noise-reducing motor assembly, comprising: a motor body, a fixed base at the lower end of the motor body, a noise-reducing component at the lower end of the fixed base, a rotating shaft at the center of the lower surface of the motor body, fixing grooves at the corners of the fixed base, and mounting holes at the ground of the fixing grooves.

[0007] Preferably, the noise reduction component includes an upper top plate, a center plate at the lower end of the upper top plate, a lower bottom plate at the lower end of the center plate, a first shaft groove at the center of the upper top plate, a third shaft groove at the center of the lower bottom plate, and one end of the mounting hole extending downward through the upper top plate, the center plate, and the lower bottom plate.

[0008] Preferably, the noise reduction component further includes a sound-absorbing seat, a mounting groove is provided at the center of the central plate, and the sound-absorbing seat is inserted into the mounting groove. The interior of the sound-absorbing seat has a honeycomb structure. A second shaft groove is provided at the center of the sound-absorbing seat, and the rotating shaft passes through the first shaft groove, the second shaft groove, and the third shaft groove in sequence.

[0009] Preferably, the outer wall of the sound-absorbing base is provided with a limiting plate, the inner wall of the mounting groove is provided with a rear limiting groove, and the limiting plate is inserted into the limiting groove.

[0010] Preferably, a positioning post is provided on one side of the mounting hole at the corner of the lower base plate, and a through hole is provided on one side of the mounting hole at the corner of the upper top plate and the center plate, and the upper top plate and the center plate are fitted over the positioning post through the through hole.

[0011] Preferably, the lower surface of the corner of the fixed base is provided with a positioning groove, and the top of the positioning post passes through the through hole and is inserted into the positioning groove.

[0012] Preferably, the top plate, center plate, and bottom plate are all made of rubber.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model provides a noise reduction component at the lower end of the fixed base. The noise reduction component consists of an upper top plate, a center plate, a lower bottom plate, and a sound-absorbing seat. When the sound-absorbing seat is inserted into the mounting groove, the limiting plate is inserted into the limiting groove, which stabilizes the sound-absorbing seat and prevents it from rotating inside the mounting groove. This prevents noise caused by rotational friction. Furthermore, the noise reduction component prevents the motor from contacting the fixed parts. The upper top plate, center plate, and lower bottom plate provide shock absorption and buffering, thereby preventing noise from hard collisions and achieving a noise reduction effect. This solves the problem that existing motor components will cause loud noise due to vibration and hard collisions with the fixed parts during use, and that noise will be generated at the connection point due to rotational friction when the shaft rotates, leading to noise pollution.

[0015] (2) By setting positioning posts on the upper surface of the corner of the bottom plate, the top plate and the center plate are fitted over the positioning posts through the through holes, thereby realizing the sequential stacking of the top plate, the center plate and the bottom plate, improving the neatness of the connection between the top plate, the center plate and the bottom plate, eliminating the need for multiple adjustments to the connection position, improving the flexibility and convenience of installation, and the top of the positioning post is inserted into the positioning groove after passing through the through hole, which plays an alignment and limiting role, making it easy for the noise reduction component to be stably connected to the fixed base and not easily deviated. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the noise reduction component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the noise reduction component of this utility model;

[0019] Figure 4 This is a bottom view of the fixed base structure of this utility model;

[0020] In the diagram: 1. Motor body; 2. Noise reduction component; 3. Rotating shaft; 4. Fixed base; 5. Fixed groove; 6. Mounting hole; 7. Top plate; 8. Center plate; 9. Bottom plate; 10. First shaft groove; 11. Through hole; 12. Mounting groove; 13. Sound-absorbing seat; 14. Second shaft groove; 15. Limiting groove; 16. Limiting plate; 17. Third shaft groove; 18. Positioning post; 19. Positioning groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4 The present invention provides an embodiment of a noise-reducing motor assembly, comprising: a motor body 1, the motor body 1 including a rotor, a stator, a shaft, brushes, a commutator, a housing, bearings and a switch, and a fixed base 4 provided at the lower end of the motor body 1, which is an existing motor structure.

[0023] A noise reduction component 2 is provided at the lower end of the fixed base 4. A rotating shaft 3 is provided at the center of the lower surface of the motor body 1. Fixing grooves 5 are provided on the upper surface of the corners of the fixed base 4. Mounting holes 6 are provided on the ground of the fixing grooves 5. The noise reduction component 2 includes an upper top plate 7. A center plate 8 is provided at the lower end of the upper top plate 7. A lower bottom plate 9 is provided at the lower end of the center plate 8. A first shaft groove 10 is provided at the center of the upper top plate 7. A third shaft groove 17 is provided at the center of the lower bottom plate 9. One end of the mounting hole 6 extends downward through the upper top plate 7, the center plate 8, and the lower bottom plate 9. The upper top plate 7, the center plate 8, and the lower bottom plate 9 are all made of rubber. A positioning post 18 is provided on one side of the mounting hole 6 at the corner of the lower bottom plate 9. A through hole 11 is provided on one side of the mounting hole 6 at the corner of the upper top plate 7 and the center plate 8. A positioning groove 19 is provided on the lower surface of the corners of the fixed base 4. The top of the positioning post 18 passes through the through hole 11 and is inserted into the positioning groove 19. The upper top plate 7 and the center plate 8 are fitted over the positioning post 18 through the through hole 11, thereby achieving the sequential stacking of the upper top plate 7, the center plate 8 and the lower bottom plate 9. This improves the neatness of the connection between the upper top plate 7, the center plate 8 and the lower bottom plate 9, eliminating the need for multiple adjustments to the connection position and improving the flexibility and convenience of installation. Furthermore, the top of the positioning post 18 passing through the through hole 11 and being inserted into the positioning groove 19 serves as an alignment and limiting effect, facilitating a stable connection between the noise reduction component 2 and the fixed base 4, preventing misalignment. After connection, the external fasteners are used to fix the component through the mounting hole 6. Thus, after the motor is fixed, the noise reduction component 2 contacts the component, relying on the upper top plate 7, the center plate 8 and the lower bottom plate 9 for shock absorption and buffering, thereby avoiding noise from hard collisions and achieving a noise reduction effect.

[0024] The noise reduction component 2 also includes a sound-absorbing seat 13. A mounting groove 12 is provided at the center of the center plate 8, and the sound-absorbing seat 13 is inserted into the mounting groove 12. The sound-absorbing seat 13 has a honeycomb structure inside. A second shaft groove 14 is provided at the center of the sound-absorbing seat 13, and the rotating shaft 3 passes through the first shaft groove 10, the second shaft groove 14 and the third shaft groove 17 in sequence. The sound-absorbing seat 13 is inserted into the mounting groove 12. The sound-absorbing seat 13 with a honeycomb structure inside surrounds the outside of the end of the rotating shaft 3 near the fixed base 4, thereby absorbing the noise generated when the rotating shaft 3 rotates along the fixed base 4, thereby further achieving the noise reduction effect.

[0025] Please see Figure 3 The outer wall of the sound-absorbing base 13 is provided with a limiting plate 16, and the inner wall of the mounting groove 12 is provided with a rear limiting groove 15. The limiting plate 16 is inserted into the limiting groove 15. When installing the sound-absorbing base 13, the limiting plate 16 is inserted into the limiting groove 15 to fix the sound-absorbing base 13 and stabilize it, preventing it from rotating inside the mounting groove 12 and avoiding noise caused by rotation and friction.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A noise-reducing motor assembly, comprising a motor body (1), characterized in that: The lower end of the motor body (1) is provided with a fixed base (4), the lower end of the fixed base (4) is provided with a noise reduction component (2), the center of the lower surface of the motor body (1) is provided with a rotating shaft (3), the upper surface of the corner of the fixed base (4) is provided with a fixing groove (5), and the ground of the fixing groove (5) is provided with a mounting hole (6); the noise reduction component (2) includes an upper top plate (7), the lower end of the upper top plate (7) is provided with a center plate (8), the lower end of the center plate (8) is provided with a lower bottom plate (9), the center of the upper top plate (7) is provided with a first shaft groove (10), the center of the lower bottom plate (9) is provided with a third shaft groove (17), and one end of the mounting hole (6) extends downward through the upper top plate (7), the center plate (8) and the lower bottom plate (9).

2. The noise-reducing motor assembly according to claim 1, characterized in that: The noise reduction component (2) also includes a sound-absorbing seat (13). The center plate (8) has a mounting groove (12) at its center, and the sound-absorbing seat (13) is inserted into the mounting groove (12). The sound-absorbing seat (13) has a honeycomb structure inside. The center of the sound-absorbing seat (13) has a second shaft groove (14), and the rotating shaft (3) passes through the first shaft groove (10), the second shaft groove (14), and the third shaft groove (17) in sequence.

3. The noise-reducing motor assembly according to claim 2, characterized in that: The outer wall of the sound-absorbing seat (13) is provided with a limiting plate (16), and the inner wall of the mounting groove (12) is provided with a rear limiting groove (15), and the limiting plate (16) is inserted into the limiting groove (15).

4. The noise-reducing motor assembly according to claim 3, characterized in that: A positioning post (18) is provided on one side of the mounting hole (6) at the corner of the lower base plate (9), and a through hole (11) is provided on one side of the mounting hole (6) at the corner of the upper top plate (7) and the center plate (8), and the upper top plate (7) and the center plate (8) are fitted onto the outside of the positioning post (18) through the through hole (11).

5. The noise-reducing motor assembly according to claim 4, characterized in that: The lower surface of the corner of the fixed base (4) is provided with positioning grooves (19), and the top of the positioning column (18) passes through the through hole (11) and is inserted into the positioning groove (19).

6. The noise-reducing motor assembly according to claim 5, characterized in that: The top plate (7), center plate (8) and bottom plate (9) are all made of rubber.

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