Noise reduction structure of dust collector

Abstract

The utility model provides a dust collector noise reduction structure which comprises a dust collector body, a fan module is arranged in the dust collector body, a noise reduction and shock absorption magnetic ring is sleeved with a magnetic ring cushion pad, and the noise reduction and shock absorption magnetic ring is installed on a magnetic ring supporting frame. According to the dust collector, the noise reduction and shock absorption magnetic ring is arranged between the rotating shaft and the mounting hole of the fan blade and is matched with the magnetic ring buffer pad, so that direct collision and vibration between the rotating shaft and the fan blade are greatly reduced, and the noise level during working of the dust collector is remarkably reduced. The magnetic suspension gap reduces mechanical friction of the rotating shaft in the rotating process, and noise generated by the mechanical friction is reduced. And the magnetic ring damping base is fixed in the mounting hole of the fan blade, so that more stable support is provided for the fan blade, and the service life of parts is prolonged. A sound insulation structure composed of a damping rubber ring and a sound insulation ring outside the magnetic ring supporting frame effectively isolates noise generated by the fan module, and the noise reduction performance of the dust collector is improved.

Description

Technical Field

[0001] The utility model relates to the field of vacuum cleaners, and more specifically, to a noise reduction structure for a vacuum cleaner. Background Art

[0002] Vacuum cleaners are widely used in daily life for dust cleaning. A noise reduction structure for a vacuum cleaner proposed in Chinese Utility Model Patent Application No.: CN201620413277.1 includes an air duct base fixedly connected to the fan housing. A central hole communicating with the fan is provided in the center of the air duct base. An air inlet channel is arranged around the central hole on the air duct base. An air duct cover plate adapted to the air duct base is installed on the air duct base. One end of the air inlet channel communicates with the central hole, and the other end communicates with an air inlet provided on the air duct cover plate. A noise reduction cotton is provided on the inner side of the outer wall of the air inlet channel.

[0003] In existing vacuum cleaners, the connection between the fan module housing and the vacuum cleaner housing generally adopts placing elastic gaskets between the contact surfaces and fixing them with screws. However, during the operation of the fan module, although the elastic gaskets play a role in buffering vibration to a certain extent, when the fan module rotates at high speed, obvious vibration energy will be generated. The vibration generated by the fan module is transmitted to the elastic gaskets and then further conducted to the vacuum cleaner housing. During this process, due to the material characteristics and structural design of the elastic gaskets, these vibration energies may not be completely absorbed and isolated, resulting in part of the vibration energy still being transmitted to the vacuum cleaner housing, thereby generating relatively large vibration noise. In the existing technology, setting noise reduction cotton cannot fundamentally reduce noise. Therefore, we propose a noise reduction structure for a vacuum cleaner. Summary of the Utility Model

[0004] The purpose of the present utility model is to address the problems raised in the background. To achieve the above-mentioned utility model purpose, the present utility model provides the following solution: A noise reduction structure for a vacuum cleaner includes a vacuum cleaner body. A fan module is arranged inside the vacuum cleaner body. A servo motor is arranged inside the fan module. A rotating shaft is arranged on the servo motor. The rotating shaft is connected to a fan blade. A noise reduction and shock absorption magnetic ring is arranged between the mounting holes of the rotating shaft and the fan blade. A magnetic ring buffer pad is sleeved on the noise reduction and shock absorption magnetic ring. The noise reduction and shock absorption magnetic ring is installed on a magnetic ring support frame.

[0005] As a preferred solution of the present utility model, a shock-absorbing rubber ring is arranged outside the magnetic ring support frame, and a sound insulation ring is arranged between the shock-absorbing rubber rings.

[0006] As a preferred solution of the present utility model, magnetic stickers are arranged on the sound insulation ring.

[0007] As a preferred solution of the present utility model, a magnetic levitation clearance reduction is provided between the rotating shaft and the noise reduction and shock absorption magnetic ring.

[0008] As a preferred solution of the present utility model, a magnetic ring shock absorption base is provided at the rear side of the noise reduction and shock absorption magnetic ring, and the magnetic ring shock absorption base is fixed in the mounting hole of the fan blade of the blower.

[0009] As a preferred solution of the present utility model, a trapezoidal hole is provided inside the rotating shaft.

[0010] As a preferred solution of the present utility model, magnetic force shock absorption balls are provided on the magnetic ring support frame.

[0011] As a preferred solution of the present utility model, the noise reduction and shock absorption magnetic ring adopts a 1 / 4 circular arc structure.

[0012] As a preferred solution of the present utility model, a filter net cover is sleeved on the outer surface of the fan blade of the blower.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: In the solution of the present utility model: By providing a noise reduction and shock absorption magnetic ring between the rotating shaft and the mounting hole of the fan blade of the blower, and cooperating with a magnetic ring buffer pad, the direct collision and vibration between the rotating shaft and the fan blade of the blower are greatly reduced, thereby significantly reducing the noise level during the operation of the vacuum cleaner. The magnetic levitation clearance reduction further reduces the mechanical friction of the rotating shaft during rotation and reduces the noise generated thereby.

[0014] The addition of the noise reduction and shock absorption magnetic ring, its magnetic ring support frame and magnetic ring shock absorption base not only reduces the noise, but also improves the overall stability and durability of the fan module of the vacuum cleaner. The magnetic ring shock absorption base is fixed in the mounting hole of the fan blade of the blower, providing a more stable support for the fan blade of the blower and extending the service life of the components.

[0015] The sound insulation structure composed of the shock absorption rubber ring and the sound insulation ring outside the magnetic ring support frame effectively isolates the noise generated by the fan module and prevents it from being transmitted to the outside, further improving the noise reduction performance of the vacuum cleaner.

[0016] Reduce the mechanical contact between the rotating shaft and the fan blade of the blower through magnetic levitation and the noise reduction and shock absorption magnetic ring, reduce vibration and noise. Use the shock absorption rubber ring and sound insulation ring structure to absorb and isolate the noise generated by vibration and reduce the transmission of noise to the outside. The magnetic ring shock absorption base and magnetic force shock absorption ball structure provide additional stability and shock absorption effect, thereby achieving the noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural schematic diagram provided by the present utility model;

[0018] Figure 2 is a structural schematic diagram of the filter net cover provided by the present utility model;

[0019] Figure 3 Schematic diagram of the fan blade structure provided by the present utility model;

[0020] Figure 4 Schematic diagram of the noise reduction and shock absorption magnetic ring structure provided by the present utility model;

[0021] Figure 5 Schematic diagram of the magnetic ring support frame structure provided by the present utility model.

[0022] Labels in the figure:

[0023] 1. Vacuum cleaner body; 2. Fan module; 201. Servo motor; 202. Rotating shaft; 3. Fan blade; 4. Noise reduction and shock absorption magnetic ring; 401. Magnetic ring buffer pad; 5. Magnetic ring support frame; 501. Shock-absorbing rubber ring; 6. Sound insulation ring; 601. Magnetic sticker; 7. Magnetic levitation and clearance reduction; 8. Magnetic ring shock absorption base; 9. Trapezoidal hole; 10. Magnetic force shock absorption ball; 11. Filter net cover. Detailed implementation manners

[0024] To make the objectives, solutions and advantages of the embodiments of the present utility model clearer, the solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model.

[0025] Therefore, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the present utility model claimed, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model. It should be noted that, without conflict, the embodiments and the features and solutions in the embodiments of the present utility model can be combined with each other. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] Embodiment 1: Please refer to Figures 1 - 5, a noise reduction structure for a vacuum cleaner, including a vacuum cleaner body 1, a fan module 2 is arranged inside the vacuum cleaner body 1, a servo motor 201 is arranged inside the fan module 2, a rotating shaft 202 is arranged on the servo motor 201, the rotating shaft 202 is connected to a fan blade 3, a noise reduction and shock absorption magnetic ring 4 is arranged between the installation hole of the rotating shaft 202 and the fan blade 3, a magnetic ring buffer pad 401 is sleeved on the noise reduction and shock absorption magnetic ring 4, and the noise reduction and shock absorption magnetic ring 4 is installed on a magnetic ring support frame 5. A shock absorption rubber ring 501 is arranged outside the magnetic ring support frame 5, and a sound insulation ring 6 is arranged between the shock absorption rubber rings 501. A magnetic sticker 601 is arranged on the sound insulation ring 6. A magnetic levitation and clearance reduction 7 is arranged between the rotating shaft 202 and the noise reduction and shock absorption magnetic ring 4. A magnetic ring shock absorption base 8 is arranged at the rear side of the noise reduction and shock absorption magnetic ring 4, and the magnetic ring shock absorption base 8 is fixed in the installation hole of the fan blade 3. A trapezoidal hole 9 is opened inside the rotating shaft 202. A magnetic force shock absorption ball 10 is arranged on the magnetic ring support frame 5. The noise reduction and shock absorption magnetic ring 4 adopts a 1 / 4 circular arc structure. A filter net cover 11 is sleeved on the outer surface of the fan blade 3.

[0027] By arranging a noise reduction and shock absorption magnetic ring 4 between the installation hole of the rotating shaft 202 and the fan blade 3 and cooperating with the magnetic ring buffer pad 401, the direct collision and vibration between the rotating shaft 202 and the fan blade 3 are greatly reduced, thereby significantly reducing the noise level during the operation of the vacuum cleaner. The magnetic levitation and clearance reduction 7 further reduces the mechanical friction of the rotating shaft 202 during rotation and reduces the noise generated thereby.

[0028] The addition of the noise reduction and shock absorption magnetic ring 4, its magnetic ring support frame 5 and magnetic ring shock absorption base 8 not only reduces the noise, but also improves the overall stability and durability of the fan module 2 of the vacuum cleaner. The magnetic ring shock absorption base 8 is fixed in the installation hole of the fan blade 3, providing a more stable support for the fan blade 3 and extending the service life of the components.

[0029] The sound insulation structure composed of the shock absorption rubber ring 501 outside the magnetic ring support frame 5 and the sound insulation ring 6 effectively isolates the noise generated by the fan module 2 and prevents it from being transmitted to the outside, further improving the noise reduction performance of the vacuum cleaner. The magnetic sticker 601 design on the sound insulation ring 6 enhances the tightness and stability of the sound insulation structure, making it play a better role.

[0030] The trapezoidal hole 9 opened inside the rotating shaft 202 may be used for installing or fixing other components. The magnetic force shock absorption ball 10 arranged on the magnetic ring support frame 5 can further absorb and disperse the vibration energy, reduce the vibration and noise, and at the same time increase the stability and reliability of the structure.

[0031] This noise reduction structure is relatively simple, easy to install and maintain, reducing production costs and usage costs. The noise reduction and shock absorption magnetic ring 4 adopts a quarter-circular arc structure, making installation more convenient and fast, and also facilitating later replacement and repair.

[0032] The structural principle of the present utility model is that the main noise reduction component of the noise reduction and shock absorption magnetic ring 4 is the noise reduction and shock absorption magnetic ring 4, which is located between the rotating shaft 202 and the mounting hole of the fan blade 3. Since the magnetic ring adopts a quarter-circular arc structure, when the rotating shaft 202 rotates, a magnetic force acts between the magnetic ring and the rotating shaft 202, and this magnetic force can reduce the direct contact between the rotating shaft 202 and the fan blade 3, thereby reducing vibration and noise.

[0033] Magnetic levitation and clearance reduction 7 A magnetic levitation and clearance reduction 7 is provided between the rotating shaft 202 and the noise reduction and shock absorption magnetic ring 4. Using magnetic force, a slight levitation effect is generated when the rotating shaft 202 operates, further reducing mechanical contact and vibration, thereby reducing noise. A shock-absorbing rubber ring 501 and a sound-insulating ring 6 are provided outside the magnetic ring support frame 5, and these structures can absorb and isolate the noise generated by vibration, reducing the transmission of noise to the outside of the vacuum cleaner.

[0034] The working process of the present utility model:

[0035] Startup stage: When the user turns on the vacuum cleaner, the servo motor 201 starts to work, driving the rotating shaft 202 to rotate.

[0036] Magnetic levitation effect: As the rotating shaft 202 rotates, the noise reduction and shock absorption magnetic ring 4 starts to take effect, and the magnetic force generated between the magnetic ring and the rotating shaft 202 enables the rotating shaft 202 to achieve a magnetic levitation state, reducing vibration and noise.

[0037] Shock absorption and sound insulation: When the vibration is transmitted to the magnetic ring support frame 5, the shock-absorbing rubber ring 501 starts to absorb and disperse the vibration energy, while the sound-insulating ring 6 blocks the transmission of noise to the outside.

[0038] Airflow generation: As the rotating shaft 202 rotates, the fan blade 3 starts to generate an airflow, sucking dust and debris into the vacuum cleaner.

[0039] Noise reduction auxiliary structure: The magnetic ring shock-absorbing base 8 is fixed in the mounting hole of the fan blade 3, further providing stability and reducing vibration. The magnetic force shock-absorbing ball 10 on the magnetic ring support frame 5 provides an additional shock-absorbing effect for the noise reduction structure.

[0040] Continuous operation: The vacuum cleaner operates continuously, and the noise reduction structure remains effective throughout the working process, ensuring that the vacuum cleaner maintains a low noise level while efficiently sucking dust.

[0041] Reduce the mechanical contact between the rotating shaft 202 and the fan blade 3 through magnetic levitation and the noise reduction and shock absorption magnetic ring 4, and reduce vibration and noise. Use the shock-absorbing rubber ring 501 and the sound insulation ring 6 structure to absorb and isolate the noise generated by vibration, and reduce the transmission of noise to the outside. The magnetic ring shock-absorbing base 8 and the magnetic force shock-absorbing ball 10 structure provide additional stability and shock-absorbing effect, thereby achieving the noise reduction effect.

[0042] The above embodiments are only used to illustrate the present invention and do not limit the solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above respective embodiments, the present invention is not limited to the above specific embodiments. Therefore, any modification or substitution of the present invention; and all solutions and improvements that do not depart from the spirit and scope of the present invention are covered within the scope of the claims of the present invention.

Claims

1. A noise reduction structure for a vacuum cleaner, comprising a vacuum cleaner body (1), a fan module (2) is arranged inside the vacuum cleaner body (1), a servo motor (201) is arranged inside the fan module (2), a rotating shaft (202) is arranged on the servo motor (201), and the rotating shaft (202) is connected to a fan blade (3), characterized in that, A noise reduction and shock absorption magnetic ring (4) is provided between the rotating shaft (202) and the mounting hole of the fan blade (3). A magnetic ring buffer pad (401) is sleeved on the noise reduction and shock absorption magnetic ring (4), and the noise reduction and shock absorption magnetic ring (4) is installed on a magnetic ring support frame (5).

2. The noise reduction structure of a vacuum cleaner according to claim 1, characterized in that, A shock-absorbing rubber ring (501) is provided on the outside of the magnetic ring support frame (5), and a sound insulation ring (6) is provided between the shock-absorbing rubber rings (501).

3. The noise reduction structure of a vacuum cleaner according to claim 2, characterized in that, Magnetic stickers (601) are provided on the sound insulation ring (6).

4. The noise reduction structure of a vacuum cleaner according to claim 1, wherein, A magnetic levitation and clearance reduction (7) is provided between the rotating shaft (202) and the noise reduction and shock absorption magnetic ring (4).

5. The noise reduction structure of a vacuum cleaner according to claim 1, characterized in that, A magnetic ring shock-absorbing base (8) is provided at the rear side of the noise reduction and shock absorption magnetic ring (4), and the magnetic ring shock-absorbing base (8) is fixed in the mounting hole of the fan blade (3).

6. The noise reduction structure of a vacuum cleaner according to claim 1, characterized in that A trapezoidal hole (9) is opened inside the rotating shaft (202).

7. The noise reduction structure of a vacuum cleaner according to claim 1, characterized in that, Magnetic force shock-absorbing balls (10) are provided on the magnetic ring support frame (5).

8. The noise reduction structure of a vacuum cleaner according to claim 1, characterized in that, The noise reduction and shock absorption magnetic ring (4) adopts a 1 / 4 circular arc structure.

9. The noise reduction structure of a vacuum cleaner according to claim 1, characterized in that, A filter net cover (11) is sleeved on the outer surface of the fan blade (3).

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