Noise reduction variable frequency motor

Abstract

The utility model discloses a noise reduction variable frequency motor, comprising a motor housing, a stator arranged in the motor housing, and a rotor arranged at the center of the stator along the axial direction; the housing is assembled on one side of the motor shell, and first sound absorption cotton is arranged on the side wall of the housing; second sound absorption cotton is arranged between the motor shell and the stator. Noise interference is reduced through the first sound absorption cotton and the second sound absorption cotton, and the vibration reduction effect is achieved through the supporting frame made of foam materials.

Description

Technical Field

[0001] The utility model relates to the technical field of variable-frequency motors, and particularly relates to a noise-reducing variable-frequency motor. Background Art

[0002] A variable-frequency motor, also known as a variable-speed motor or a speed-regulating motor, is a motor that can automatically adjust its speed to meet different working requirements. The variable-frequency motor can adjust its output power as needed to maintain efficient operation, and can smoothly change the speed of the motor to adapt to different working conditions. Existing variable-frequency motors generate noise during operation, which affects the comfort of the surrounding environment, and the high noise level may accelerate the wear of the equipment, resulting in a shortened service life of the motor. Based on this, a noise-reducing variable-frequency motor is designed. Content of the Utility Model

[0003] In order to overcome at least one of the above-mentioned defects of the prior art, the utility model provides a noise-reducing variable-frequency motor. The noise interference is reduced by the first sound-absorbing cotton and the second sound-absorbing cotton, and the shock-absorbing effect is achieved through the support frame made of foam material.

[0004] The technical solution adopted by the utility model to solve its problems is as follows:

[0005] A noise-reducing variable-frequency motor, comprising: a motor housing, a stator is installed inside the motor housing, and a rotor is arranged axially in the center of the stator; a cover housing, the cover housing is assembled on one side of the motor housing, and a first sound-absorbing cotton is arranged on the side wall of the cover housing; wherein, a second sound-absorbing cotton is arranged between the motor housing and the stator.

[0006] By adopting the above scheme, the noise interference is reduced by the first sound-absorbing cotton and the second sound-absorbing cotton, and the shock-absorbing effect is achieved through the support frame made of foam material.

[0007] Furthermore, a support structure is further included, and the support structure is arranged at the bottom of the motor housing for leaving a space between the motor housing and the ground.

[0008] Furthermore, the support structure includes: a support frame, the support frame is arranged at the bottom of the motor housing, and the support frame is integrally formed with the motor housing; a base, the base is arranged below the support frame.

[0009] By adopting the above scheme, a good support effect is achieved through the support structure, and the variable-frequency motor is prevented from directly contacting the ground.

[0010] Furthermore, the support frame is made of foam material.

[0011] By adopting the above scheme, the vibration isolation effect is achieved through the foam body, and the vibration generated by the motor is reduced from being transmitted to the surrounding structures.

[0012] Further, the rotor extends into the housing, and a fan is connected to the end of the rotor.

[0013] By adopting the above solution, the heat dissipation effect is achieved through the fan.

[0014] Further, heat dissipation holes are provided on the outer surface of the housing.

[0015] By adopting the above solution, the heat dissipation effect is achieved through the heat dissipation holes.

[0016] Further, a polyurethane foam layer is provided on the outer surface of the motor housing.

[0017] By adopting the above solution, the polyurethane foam layer has good sound insulation and sound absorption properties, further avoiding the noise generated during the operation of the variable frequency motor. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0019] Figure 2 It is a top view of an embodiment of the present utility model;

[0020] Figure 3 It is a structural schematic diagram of the motor housing of an embodiment of the present utility model;

[0021] Among them, the meanings of the reference numerals are as follows: 1, motor housing; 12, rotor; 2, housing; 21, first sound-absorbing cotton; 3, second sound-absorbing cotton; 4, support structure; 41, support frame; 42, base; 5, fan; 6, heat dissipation holes; 7, polyurethane foam layer. Detailed Embodiments

[0022] For better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described and discussed below with reference to the drawings of the present utility model. Obviously, what is described here is only a part of the examples of the present utility model, not all of the examples. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.

[0023] For the convenience of understanding the embodiments of the present utility model, the following will take specific embodiments as examples and further explain with reference to the drawings, and each embodiment does not constitute a limitation to the embodiments of the present utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0026] Refer to Figures 1 - 3 , the present utility model discloses a noise-reducing variable-frequency motor: including a motor housing 1 and a cover 2. A stator is installed inside the motor housing 1. A rotor 12 is arranged axially in the center of the stator. The cover 2 is assembled on one side of the motor housing 1. A first sound-absorbing cotton 21 is arranged on the side wall of the cover 2. Among them, a second sound-absorbing cotton 3 is arranged between the motor housing 1 and the stator. The first sound-absorbing cotton 21 and the second sound-absorbing cotton 3 are used to reduce noise interference, and a shock-absorbing effect is achieved through a support frame 41 made of foam material.

[0027] In this embodiment, a support structure 4 is further included. The support structure 4 is arranged at the bottom of the motor housing 1 for leaving a space between the motor housing 1 and the ground. The support structure 4 includes a support frame 41 and a base 42. The support frame 41 is arranged at the bottom of the motor housing 1, and the support frame 41 is integrally formed with the motor housing 1. The base 42 is arranged below the support frame 41. A good support effect is achieved through the support structure 4 to prevent the variable-frequency motor from directly contacting the ground. Specifically, the support frame 41 is made of foam material, and a vibration isolation effect is achieved through the foam material to reduce the vibration generated by the motor from being transmitted to the surrounding structures.

[0028] The rotor 12 extends into the cover 2, and a fan 5 is connected to the end of the rotor 12 to achieve a heat dissipation effect through the fan 5. Heat dissipation holes 6 are arranged on the outer surface of the cover 2 to achieve a heat dissipation effect through the heat dissipation holes 6.

[0029] In this embodiment, a polyurethane foam layer 7 is arranged on the outer surface of the motor housing 1. The polyurethane foam layer 7 has good sound insulation and sound absorption properties, further avoiding the noise generated during the operation of the variable-frequency motor.

[0030] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A noise reduction variable frequency motor, characterized in that: include: A motor housing, wherein a stator is installed inside the motor housing, and a rotor is arranged in the center of the stator along its axial direction; A cover shell, the cover shell is assembled on one side of the motor housing, and a first sound-absorbing cotton is arranged on the side wall of the cover shell; Wherein, a second sound-absorbing cotton is arranged between the motor housing and the stator; It also includes a support structure, which is arranged at the bottom of the motor housing and is used to reserve space between the motor housing and the ground; The support structure comprises: A support frame, the support frame is arranged at the bottom of the motor housing, and the support frame and the motor housing are integrally formed; A base, the base being arranged below the support frame; The support frame is made of foam material.

2. A noise reduction variable frequency motor according to claim 1, characterized in that: The rotor extends into the housing, and a fan is connected to an end of the rotor.

3. The noise reduction variable frequency motor according to claim 2, characterized in that: The outer surface of the housing is provided with heat dissipation holes.

4. The noise reduction variable frequency motor according to claim 3, characterized in that: A polyurethane foam layer is arranged on the outer surface of the motor housing.

Images