Noise reduction and vibration attenuation wing of motor fan blade

Abstract

The utility model relates to the field of motor noise reduction and vibration reduction, and discloses a motor fan blade noise reduction and vibration reduction wing which comprises an installation cover, a plurality of installation wings are fixedly connected to the outer wall of the installation cover and distributed in a circumferential mode, a plurality of fixing boxes are fixedly connected to the inner wall of the installation cover and distributed in a circumferential mode, and the fixing boxes are fixedly connected to the outer wall of the installation cover. A noise reduction and vibration reduction assembly is arranged on the fixed box; meanwhile, under the action of air pressure, the inner cavity can restrain repeated rapid movement of the elastic connecting plate, and therefore vibration and noise are effectively reduced; the noise reduction and vibration attenuation assembly is arranged and comprises an inner cavity, a connecting block, an elastic connecting plate and a limiting plate, vibration and noise generated during operation of the motor can be effectively reduced, the operation stability of the motor is improved, the service life of the motor is prolonged, the arc-shaped limiting plate is tightly attached to a rotating shaft of the motor, and the connecting block is slidably arranged on the inner wall of the fixing box. Stable connection between the mounting cover and the motor is ensured, and noise and vibration caused by loosening are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor noise reduction and vibration reduction field, concretely is a motor fan blade noise reduction and vibration reduction wing. BACKGROUND

[0002] In the motor operation process, the motor fan blade is an important heat dissipation exhaust component. The motor fan blade generates airflow through rotation to realize heat dissipation and exhaust function and guarantee stable operation of the motor.

[0003] Application No. 202321552065.8 discloses a motor fan blade noise reduction and vibration reduction wing. The positioning magnetic column is embedded into the motor main shaft by the tension of the spring. Thus, the positioning ring and the fixed sleeve are limited and fixed, and the positioning ring and the fixed sleeve are connected integrally. The fixed sleeve can also avoid separation from the motor main shaft due to loosening, avoiding separation of the mounting part and the fan blade from the motor main shaft. The magnetic attraction of the positioning magnetic column and the motor main shaft can avoid separation of the positioning magnetic column from the motor main shaft, ensuring close connection of the positioning magnetic column and the motor main shaft.

[0004] The above device directly installs the mounting part on the motor main shaft. Due to vibration and high-speed rotation during motor operation, a large noise is generated. This noise not only affects the surrounding environment, but also may cause performance degradation of the motor. At the same time, the large noise may also cause accelerated wear of internal components of the motor, shortening the service life of the motor. Therefore, we propose a motor fan blade noise reduction and vibration reduction wing. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a motor fan blade noise reduction and vibration reduction wing, which solves the problem that the mounting part is directly installed on the motor main shaft during use of the above device. Due to vibration and high-speed rotation during motor operation, a large noise is generated. This noise not only affects the surrounding environment, but also may cause performance degradation of the motor. At the same time, the large noise may also cause accelerated wear of internal components of the motor, shortening the service life of the motor.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a motor fan blade noise reduction and vibration reduction wing, comprising a mounting cover, a plurality of mounting wings are fixedly connected to the outer wall of the mounting cover, the mounting wings are distributed in a circle, a plurality of fixed boxes are fixedly connected to the inner wall of the mounting cover, the fixed boxes are distributed in a circle, and a noise reduction and vibration reduction assembly is arranged on the fixed box.

[0007] Preferably, the noise reduction and vibration reduction assembly comprises an inner cavity, a connecting block, an elastic connecting plate and a limiting plate, one end of the connecting block is slidably connected to the inner wall of the fixed box, the other end of the connecting block extends to the outside of the fixed box, the arc-shaped limiting plate is fixedly connected to the end of the connecting block away from the fixed box, the inner cavity is arranged between the side wall of the connecting block and the inner wall of the fixed box and is located in the inside of the fixed box, and the elastic connecting plate is fixedly connected between the side wall of the arc-shaped limiting plate and the inner wall of the mounting cover.

[0008] Preferably, the elastic connecting plate is wave-shaped.

[0009] Preferably, a positioning rod is mounted on the inner bottom wall of the mounting cover.

[0010] Preferably, a plurality of heat dissipation holes are formed in the outer wall of the mounting cover and are circumferentially distributed.

[0011] Preferably, a rubber strip is fixedly connected to the outer wall edge of the mounting wing, and a triangular protruding block is fixedly connected to the side wall of the mounting wing.

[0012] Preferably, a mounting hole is arranged on the mounting wing.

[0013] Compared with the prior art, the motor fan blade noise reduction and vibration reduction wing has the following beneficial effects:

[0014] 1. When the motor starts and the rotating shaft starts to rotate, the arc-shaped limiting plate moves with the rotation of the rotating shaft, which drives the elastic connecting plate connected thereto to reciprocate, and during the movement of the elastic connecting plate, one end of the connecting block slides on the inner wall of the fixed box, thereby compressing the inner cavity, and the sliding process generates a certain friction force, and at the same time, the inner cavity can inhibit the repeated rapid movement of the elastic connecting plate under the action of air pressure, thereby effectively reducing the generation of vibration and noise; the noise reduction and vibration reduction assembly comprising the inner cavity, the connecting block, the elastic connecting plate and the limiting plate can effectively reduce the vibration and noise during the operation of the motor, improve the operation stability and service life of the motor, the arc-shaped limiting plate is closely attached to the motor rotating shaft, and the sliding design of the connecting block on the inner wall of the fixed box ensures the stable connection between the mounting cover and the motor, and avoids the noise and vibration caused by looseness.

[0015] 2. The motor fan blade noise reduction and vibration reduction wing, the heat dissipation holes formed in the outer wall of the mounting cover and the triangular protruding block on the mounting wing optimize the air flow channel and improve the heat dissipation efficiency of the motor, thereby ensuring the long-term stable operation of the motor. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 is a side view structure schematic diagram of the utility model;

[0018] Figure 3 is an internal structure schematic diagram of the utility model;

[0019] Figure 4 is Figure 3 is a partial enlarged schematic diagram of A in the figure.

[0020] In the figure: 1, mounting cover; 2, mounting wing; 3, triangular lug; 4, bolt; 5, heat dissipation hole; 6, mounting hole; 7, rubber strip; 8, arc limiting plate; 9, connecting block; 10, inner cavity; 11, elastic connecting plate; 13, positioning rod; 14, fixed box. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-4 , a motor fan blade noise reduction and vibration reduction wing, including mounting cover 1, mounting cover 1 outer wall is fixedly connected with a plurality of mounting wing 2, mounting wing 2 is circumferentially distributed, mounting cover 1 inner wall is fixedly connected with a plurality of fixed box 14, fixed box 14 is circumferentially distributed, fixed box 14 is equipped with noise reduction and vibration reduction assembly, first, mounting cover 1 is installed on the motor through the mounting hole 6 on the mounting wing 2 by bolt 4, in this process, arc limiting plate 8 will closely adhere to the rotating shaft of the motor, ensure the stability and accuracy of installation.

[0023] The noise reduction and vibration reduction assembly comprises an inner cavity 10, a connecting block 9, an elastic connecting plate 11 and a limiting plate 8, one end of the connecting block 9 is slidably connected to the inner wall of the fixed box 14, the other end of the connecting block 9 extends to the outside of the fixed box 14, the arc-shaped limiting plate 8 is fixedly connected to the end of the connecting block 9 away from the fixed box 14, the inner cavity 10 is arranged between the side wall of the connecting block 9 and the inner wall of the fixed box 14 and located inside the fixed box 14, and the elastic connecting plate 11 is fixedly connected between the side wall of the arc-shaped limiting plate 8 and the inner wall of the mounting cover 1; when the motor starts and the rotating shaft starts to rotate, the arc-shaped limiting plate 8 will move with the rotation of the rotating shaft, and this movement drives the elastic connecting plate 11 connected thereto to reciprocate, in the process of movement of the elastic connecting plate 11, one end of the connecting block 9 will slide on the inner wall of the fixed box 14, so as to compress the inner cavity 10, and the sliding process will generate a certain friction force, at the same time, under the action of air pressure, the inner cavity 10 can inhibit the repeated rapid movement of the elastic connecting plate 11, thereby effectively reducing the generation of vibration and noise; through the arrangement of the noise reduction and vibration reduction assembly comprising the inner cavity 10, the connecting block 9, the elastic connecting plate 11 and the limiting plate 8, the vibration and noise generated during the operation of the motor can be effectively reduced, the operation stability and service life of the motor are improved, the arc-shaped limiting plate 8 is closely attached to the rotating shaft of the motor, and the sliding design of the connecting block 9 on the inner wall of the fixed box 14 ensures the stable connection between the mounting cover 1 and the motor, and avoids the noise and vibration caused by looseness.

[0024] The elastic connecting plate 11 is in a wave shape; the wave-shaped elastic connecting plate 11 can provide better elasticity and deformation capability, further enhance the noise reduction and vibration reduction effect, and also increase the stability and durability of the structure.

[0025] The inner bottom wall of the mounting cover 1 is provided with a positioning rod 13; the design of the positioning rod 13 helps to ensure the accurate positioning and stable fixation of the mounting cover 1 during the installation process, and improves the installation precision and reliability of the entire noise reduction and vibration reduction wing.

[0026] The outer wall of the mounting cover 1 is provided with a plurality of heat dissipation holes 5 and is circumferentially distributed; the design of the heat dissipation holes 5 helps to effectively dissipate the heat generated during the operation of the motor, improves the heat dissipation efficiency of the motor, and thus prolongs the service life of the motor.

[0027] The outer wall edge of the mounting wing 2 is fixedly connected with a rubber strip 7, the side wall of the mounting wing 2 is fixedly connected with a triangular protruding block 3, and a bolt 4 is arranged between the triangular protruding block 3 and the bolt 4; the design of the rubber strip 7 provides additional damping effect and increases the sealing property between the mounting wing 2 and the motor; the cooperation of the triangular protruding block 3 and the bolt 4 ensures the firm fixation of the mounting wing 2 and improves the stability and safety of the entire noise reduction and vibration reduction wing.

[0028] The mounting wing 2 is provided with mounting holes 6; the design of the mounting holes 6 enables the device to be conveniently installed on the motor through bolts or other fasteners, simplifying the installation process and improving installation efficiency.

[0029] Structure description: mounting cover 1:

[0030] The mounting cover is the main structure of the noise reduction and vibration reduction wing, designed as a circle or similar shape, used to wrap the motor fan blade. It is equipped with a fixing box and other noise reduction and vibration reduction components inside, aiming to improve the overall noise reduction and vibration reduction effect.

[0031] Mounting wing 2:

[0032] The mounting wing is a component that extends outward from the outer wall of the mounting cover, usually distributed in a circular manner. Their main function is to connect the mounting cover and the motor or other fixed structures, and each mounting wing is provided with mounting holes 6 for fixation through bolts 4.

[0033] Triangular protrusions 3:

[0034] The triangular protrusions are structures mounted on the side walls of the mounting wing, shaped like a triangle. Their role is to increase the contact area between the mounting wing and the bolt, improving the stability and reliability of the fixation. The bolts 4 will pass through the triangular protrusions to fix the mounting wing.

[0035] Bolts 4:

[0036] The bolts are fasteners used to fix the mounting wing to the motor or other fixed structures. They pass through the mounting holes 6 and triangular protrusions 3, and cooperate with the nuts on the motor or other structures to ensure the firm fixation of the noise reduction and vibration reduction wing.

[0037] Heat dissipation holes 5:

[0038] The heat dissipation holes are circular or elliptical holes opened on the outer wall of the mounting cover. These holes are used to improve the heat dissipation efficiency of the motor and prevent overheating of the motor.

[0039] Mounting holes 6:

[0040] The mounting holes are circular holes opened on the mounting wing, used to fix the noise reduction and vibration reduction wing to the motor through bolts 4. The position and number of mounting holes are usually determined according to the installation requirements of the motor.

[0041] Rubber strips 7:

[0042] The rubber strips are flexible materials installed on the edges of the outer wall of the mounting wing, used to provide additional shock absorption and increase the sealing between the mounting wing and the motor. The material and thickness of the rubber strips are usually determined according to the noise reduction and vibration reduction requirements.

[0043] Arc-shaped limiting plates 8:

[0044] The arc-shaped limiting plate is part of the noise reduction and vibration damping assembly. It is fixedly connected to one end of the connecting block 9. Its function is to limit the movement range of the connecting block and ensure the stability and reliability of the noise reduction and vibration damping assembly during motor operation.

[0045] Connector block 9:

[0046] The connecting block is one of the key components of the noise reduction and vibration damping assembly. It is designed to slide on the inner wall of the fixed box 14. One end of it is fixedly connected to the arc-shaped limiting plate 8, while the other end can slide inside the fixed box to absorb and disperse the vibration energy of the motor during operation.

[0047] Inner cavity 10:

[0048] The inner cavity is the space between the side wall of the connecting block 9 and the inner wall of the fixing box 14. This space is designed to further absorb and disperse vibration energy, reducing noise generation.

[0049] Flexible connecting plate 11:

[0050] The flexible connecting plate is another key component of the noise reduction and vibration damping assembly, fixedly connected between the side wall of the arc-shaped limiting plate 8 and the inner wall of the mounting cover 1. Its design allows it to deform when subjected to vibration, thereby absorbing and dispersing vibration energy and reducing noise transmission.

[0051] Positioning rod 13:

[0052] Ensure the accurate positioning and stable fixation of the mounting cover 1 during the installation process to improve the installation accuracy and reliability of the entire noise reduction and vibration damping wing.

[0053] Fixing box 14:

[0054] The mounting box is a structure installed on the inner wall of the mounting cover 1 to house the noise reduction and vibration damping components.

[0055] Working principle

[0056] First, the mounting cover 1 is installed on the motor using bolts 4 through the mounting holes 6 on the mounting wing 2. During this process, the arc-shaped limiting plate 8 will fit tightly against the motor shaft, ensuring the stability and accuracy of the installation. When the motor starts and the shaft begins to rotate, the arc-shaped limiting plate 8 will move with the rotation of the shaft. This movement drives the elastic connecting plate 11 connected to it to reciprocate. During the movement of the elastic connecting plate 11, one end of the connecting block 9 will slide on the inner wall of the fixed box 14, thereby compressing the inner cavity 10. This sliding process generates a certain amount of friction. At the same time, under the action of air pressure, the inner cavity 10 can suppress the repeated rapid movement of the elastic connecting plate 11, thereby effectively reducing the generation of vibration and noise. The triangular protrusion 3 design on the mounting wing 2 not only enhances the stability of the structure, but also reduces the resistance of the airflow components to a certain extent and improves the heat dissipation efficiency of the motor.

[0057] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A noise reduction and vibration damping blade for a motor fan, comprising a mounting cover (1), wherein a plurality of mounting wings (2) are fixedly connected to the outer wall of the mounting cover (1), the mounting wings (2) being circumferentially distributed, characterized in that, Also includes: The inner wall of the mounting cover (1) is fixedly connected to several fixing boxes (14), which are distributed in a circle, and the fixing boxes (14) are provided with noise reduction and vibration damping components.

2. The motor fan blade noise reduction and vibration damping blade according to claim 1, characterized in that: The noise reduction and vibration damping assembly includes an inner cavity (10), a connecting block (9), an elastic connecting plate (11), and a limiting plate (8). One end of the connecting block (9) is slidably connected to the inner wall of the fixed box (14), and the other end of the connecting block (9) extends to the outside of the fixed box (14). The arc-shaped limiting plate (8) is fixedly connected to the end of the connecting block (9) away from the fixed box (14). The inner cavity (10) is located between the side wall of the connecting block (9) and the inner wall of the fixed box (14) and is located inside the fixed box (14). The elastic connecting plate (11) is fixedly connected between the side wall of the arc-shaped limiting plate (8) and the inner wall of the mounting cover (1).

3. The motor fan blade noise reduction and vibration damping blade according to claim 2, characterized in that: The elastic connecting plate (11) is wavy.

4. The motor fan blade noise reduction and vibration damping blade according to claim 1, characterized in that: A positioning rod (13) is installed on the bottom wall inside the mounting cover (1).

5. The motor fan blade noise reduction and vibration damping blade according to claim 1, characterized in that: The outer wall of the mounting cover (1) has several heat dissipation holes (5) distributed in a circular pattern.

6. The motor fan blade noise reduction and vibration damping blade according to claim 1, characterized in that: A rubber strip (7) is fixedly connected to the outer edge of the mounting wing (2), and a triangular protrusion (3) is fixedly connected to the side wall of the mounting wing (2). A bolt (4) is provided between the triangular protrusion (3) and the bolt (4).

7. The motor fan blade noise reduction and vibration damping blade according to claim 1, characterized in that: The mounting wing (2) is provided with mounting holes (6).

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