A motor noise reduction housing

Abstract

The utility model discloses a motor noise reduction shell, including floating seat, silencer sleeve and noise reduction ring cover. Among them, floating seat is connected with motor bottom surface through flexible support foot, absorbs the vibration of motor, reduces the spread of noise, silencer sleeve has the porous structure, can effectively absorb and scatter the noise of motor, and further reduces noise through the inside silencer fin, noise reduction ring cover includes ring seat and spiral arrangement's whirl vane, is helpful to improve air flow and reduce airflow noise. The motor noise reduction shell still passes through optimization hole design, structure layout and the configuration of silencer fin, has promoted the effect of reducing noise, has avoided the heat dissipation and vibration problem that traditional noise reduction scheme brought to the same extent. This scheme has extensive application prospect, is especially suitable for the motor equipment of requiring low noise and high -efficient heat dissipation.

Description

Technical Field

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

[0002] With the increasing demand for electric motors in modern industry and daily life, their application in various mechanical equipment is becoming more and more widespread. However, electric motors generate considerable noise during operation, especially in applications involving long-term operation or high-power motors, where noise problems are particularly prominent. Motor noise not only affects the comfort of the working environment but may also adversely affect the health of operators, and even impact production efficiency and equipment lifespan.

[0003] Currently, many motor equipment use vibration damping, sound insulation, and sound absorption materials to reduce noise levels. However, existing noise reduction technologies still have some shortcomings, mainly in the following aspects:

[0004] Many existing motor noise reduction housings use noise reduction materials and designs that can reduce noise to some extent, but they cannot comprehensively and effectively solve the noise problem in all frequency ranges generated during motor operation, especially in effectively reducing low-frequency and high-frequency noise.

[0005] Most motors generate high temperatures during prolonged operation, making heat dissipation a significant challenge for motor-driven equipment. However, traditional noise reduction measures often compromise motor heat dissipation, reducing overall equipment operating efficiency. Overheating not only affects motor performance but can also damage the equipment.

[0006] In view of this, we have studied and improved the existing problems to provide a motor noise reduction housing to solve the current issues. The aim of this technology is to solve the problems and improve its practical value. Utility Model Content

[0007] This utility model relates to a noise-reducing housing for motors, aiming to reduce the noise generated by motors during operation, improve the motor's working environment, and simultaneously increase the motor's service life and efficiency through optimized design. This utility model utilizes various structural optimization designs, including a sound-absorbing sleeve, a flexible support structure, and a noise-reducing ring cover, to effectively suppress vibration and noise during motor operation, making it suitable for motor equipment requiring low-noise operation.

[0008] The main structure is as follows:

[0009] The floating seat of this invention is fixed to the bottom of the motor and supports the motor. The bottom of the floating seat is connected to the bottom of the motor via flexible support legs. The flexible support legs are equipped with energy-absorbing support rods, which can absorb the vibration energy generated during motor operation and reduce the noise and vibration transmitted to the casing. This structural design can effectively reduce the vibration and noise caused by motor operation, making the motor run more smoothly and with lower noise.

[0010] The noise-absorbing sleeve is a semi-circular cylinder with evenly arranged circular holes on its outer surface, distributed in a grid pattern. This structure helps absorb and diffuse noise generated during motor operation. The sleeve is made of metal or high-strength plastic, possessing good mechanical strength and effectively suppressing the propagation of high-frequency noise. The hole design is optimized to effectively reduce noise at different frequencies.

[0011] A gap layer is provided between the inner side of the silencing sleeve and the motor surface, and conical annular silencing fins are arranged within the gap layer. These silencing fins have a unique geometry that effectively reduces noise by guiding airflow and reducing turbulence in the airflow. The layout and angle of the fins are precisely designed to improve airflow efficiency and reduce noise transmission.

[0012] The noise-reducing ring cover of this utility model includes a ring seat, with several swirl vanes fixedly arranged inside the ring seat. The vanes are arc-shaped and spirally arranged to improve airflow and reduce noise caused by airflow. The swirling air cavity formed between the vanes can further enhance the stability of airflow, reduce noise in the airflow, and improve air heat dissipation efficiency.

[0013] The structural design of this invention not only effectively reduces the noise generated during motor operation but also adapts to the needs of different working environments, making it particularly suitable for motor equipment with strict noise requirements. Whether in industrial applications or household appliances, this motor noise-reducing housing delivers excellent noise reduction, enhancing the overall performance and operating comfort of the motor.

[0014] The design of the silencer sleeve and noise-reducing ring cover is not limited to noise reduction; it also optimizes the motor's heat dissipation performance. The perforated design of the silencer sleeve and the swivel structure of the noise-reducing ring cover promote airflow, helping the motor maintain a suitable temperature during operation and preventing equipment damage or efficiency reduction due to overheating. Beneficial effects

[0015] This invention significantly reduces the noise generated during motor operation through a unique sound-absorbing sleeve, flexible support structure, and noise-reducing ring cover design, making it suitable for motor equipment with low noise requirements.

[0016] This invention not only reduces noise but also effectively improves the heat dissipation performance of the motor, extends its service life, and increases work efficiency.

[0017] Through innovative designs such as energy-absorbing struts, sound-absorbing fins, and rotary blades, vibration transmission and noise propagation are further reduced, resulting in quieter and smoother motor operation.

[0018] The noise-reducing housing of this motor has a simple structure, is easy to manufacture, and is highly adaptable. It can be widely used in various motor equipment, thereby enhancing the market competitiveness of the product. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the sound-absorbing sleeve and noise-reducing ring cover structure according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of a flexible support structure according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the noise reduction ring cover according to an embodiment of the present invention.

[0023] Figure label:

[0024] 100. Floating seat; 110. Flexible support leg; 120. Energy-absorbing support rod; 111. Deformation groove;

[0025] 200, Silencing sleeve; 300, Noise-reducing ring cover; 310, Ring seat; 320, Rotary blade; 321, Rotary air ring cavity. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0027] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0028] The following is in conjunction with the appendix Figures 1-4 This invention describes a motor noise reduction housing provided by some embodiments of the present invention. Example 1

[0029] A noise-reducing housing for motors is disclosed, suitable for noise control of motors, reducing noise generated during motor operation and improving their heat dissipation performance. The structure and function of the motor noise-reducing housing are as follows:

[0030] The floating base 100 is used to support the motor and is fixed to the bottom surface of the motor. The floating base 100 is made of flexible metal or rubber, providing good elasticity and shock absorption. Flexible support legs 110 are connected to the bottom surface of the floating base 100, and the surface of the flexible support legs 110 is provided with deformation grooves 111 and energy-absorbing support rods 120. The top end of the energy-absorbing support rod 120 is movably connected to the bottom surface of the floating base 100, and has the function of absorbing motor vibration and reducing noise. When the motor is operating, the flexible support legs 110 can absorb and mitigate vibrations from the bottom surface of the motor, reducing the impact of vibration on the casing and the external environment.

[0031] The silencer sleeve 200 is a semi-circular cylinder made of metal or high-strength plastic, possessing strong mechanical strength. Its outer surface features evenly arranged circular holes in a grid-like distribution. By optimizing the size and layout of these holes, high-frequency noise generated by the motor can be effectively absorbed and scattered, reducing noise propagation during motor operation. The hole design is precisely calculated to reduce noise frequencies encountered during motor operation.

[0032] A gap layer is provided between the inner side of the silencing sleeve 200 and the motor surface, and conical annular silencing fins 320 are arranged within the gap layer. These silencing fins 320 are annular and have a certain tilt angle, which can guide airflow and reduce turbulent noise in the airflow and suppress sound wave transmission. By increasing the vortex effect of airflow, the silencing fins help to convert noise energy in the air into heat energy, thereby reducing noise propagation. In addition, the fin design also helps to improve the heat dissipation of the motor.

[0033] The noise-reducing ring cover 300 includes a ring seat 310, on the inner side of which a plurality of swirl vanes 320 are fixedly arranged. These swirl vanes 320 are arc-shaped and spirally arranged. The arrangement of the swirl vanes helps to guide airflow and further reduce noise generated during airflow. The swirling air cavity 321 formed between the swirl vanes 320 can enhance the smooth flow of air, reduce airflow disturbance, and reduce noise and vibration in the airflow.

[0034] This motor noise reduction housing is designed for various motors, especially those requiring low-noise operation. Through the combination of the floating base 100 and the flexible support structure 110, the porous design of the sound-absorbing sleeve 200, the inner sound-absorbing fins 320, and the swivel structure of the noise-reducing ring cover 300, this motor noise reduction housing effectively reduces noise during motor operation and improves the motor's operating comfort.

[0035] The design of the silencer sleeve 200 and the noise-reducing ring cover 300 is not limited to noise reduction; they also effectively improve the heat dissipation performance of the motor. The perforations in the silencer sleeve and the swivel structure of the noise-reducing ring cover promote airflow, helping the motor maintain a suitable temperature during operation and preventing performance degradation and equipment damage caused by overheating. Example 2

[0036] In another embodiment, the shape and size of the holes in the silencer sleeve 200 can be optimized according to the noise frequency of different motor types. The distribution and size of the holes can be further adjusted according to the motor load to ensure optimal noise reduction. Furthermore, the motor's operating environment, such as temperature and humidity, may also affect the design parameters of the noise-reducing housing; therefore, the material and configuration of the silencer sleeve can be adjusted under different environmental conditions.

[0037] Working principle and usage process

[0038] When the motor starts running, its operation generates noise and vibration. The floating base 100 absorbs the vibration generated on the bottom surface of the motor through the flexible support structure 110, preventing the vibration from being transmitted to the housing.

[0039] The noise generated by the motor is diffused and absorbed through the holes on the silencing sleeve 200, reducing the propagation of the noise.

[0040] The gap layer inside the silencing sleeve 200 and the conical annular silencing fins 320 further reduce noise and optimize sound wave transmission, thereby blocking sound wave conduction and reducing noise sources.

[0041] The swivel blades 320 on the noise reduction ring cover 300 optimize airflow, reduce airflow disturbance, and further reduce the noise generated by motor operation.

[0042] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A noise-reducing housing for a motor, characterized in that, include: The system includes a floating seat (100), a silencing sleeve (200), and noise-reducing ring covers (300) fixed to both ends of the silencing sleeve (200). The floating seat (100) is fixed to the bottom of the motor for motor support. A flexible support foot (110) is fixedly connected to the bottom surface of the floating seat (100), and an energy-absorbing support rod (120) is provided on the surface of the flexible support foot (110). The top end of the energy-absorbing support rod (120) is movable with the bottom surface of the floating seat (100). The connection is made so that the silencing sleeve (200) is fixed to the top of the floating seat (100) for fitting onto the surface of the motor. The noise reduction ring cover (300) includes a ring seat (310) and a plurality of swirl vanes (320) fixed to the inner side of the ring seat (310). The swirl vanes (320) are arc-shaped and spirally arranged on the inner side of the ring seat (310). The inner side of the ring seat (310) is provided with a swirling air ring cavity (321) located between the swirl vanes (320).

2. The motor noise reduction housing according to claim 1, characterized in that, The silencing sleeve (200) is a semi-circular cylinder made of metal or high-strength plastic material, and its surface is covered with evenly arranged circular holes. The holes are distributed in a grid pattern on the surface of the cylinder to reduce the noise generated when the motor is running.

3. The motor noise reduction housing according to claim 1, characterized in that, A gap layer is provided between the inner side of the silencing sleeve (200) and the surface of the motor, and a conical annular silencing fin is arranged in the gap layer to further reduce noise and improve airflow.

4. The motor noise reduction housing according to claim 1, characterized in that, The holes in the silencing sleeve (200) are designed and arranged in an optimized manner according to the frequency characteristics of the noise to enhance the noise reduction effect.

5. The motor noise reduction housing according to claim 3, characterized in that, The conical annular sound-absorbing fins are arranged in an annular shape with a certain tilt angle to guide airflow and reduce turbulent noise.

6. The motor noise reduction housing according to claim 3, characterized in that, The conical annular sound-absorbing fins convert noise into heat energy through physical impact and air vibration, thereby further reducing the propagation of noise.

7. The motor noise reduction housing according to claim 1, characterized in that, The flexible support foot (110) has a deformation groove (111) on its surface, and the floating seat (100) is a flexible metal or rubber component. The two ends of the energy-absorbing support rod (120) are connected to the surfaces of the floating seat (100) and the flexible support foot (110) respectively, for absorbing vibration kinetic energy.

Images