CN213937636U

CN213937636U - Noise-reduction motor

Info

Publication number: CN213937636U
Application number: CN202023313256.8U
Authority: CN
Inventors: 武长青; 刘振生
Original assignee: Wuxi Anchi Power Technology Co ltd
Current assignee: Wuxi Anchi Power Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-10
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a motor of making an uproar falls, include: the outer rotor assembly is fixedly connected with the hub of the electric vehicle; the stator assembly is in magnetic coupling corresponding fit with the outer rotor assembly; the rotating shaft is fixedly connected with the stator assembly; the two side covers are rotatably arranged at two ends of the rotating shaft and are fixedly connected with two ends of the outer rotor component; wherein, every the side cover includes fixed section of thick bamboo, outer panel and interior plate, the outer panel with the periphery wall interconnect of interior plate and with the external rotor subassembly is connected, the outer panel with the internal perisporium of interior plate sets up respectively fixed section of thick bamboo is along the ascending both ends of axial of pivot, just the outer panel is located the interior plate is kept away from one side of stator module, the outer panel with form the amortization chamber between the interior plate, be provided with a plurality of bloops on the interior plate. The utility model discloses can reduce the noise that the motor rotated the in-process and produced.

Description

Noise-reduction motor

Technical Field

The utility model relates to an electric motor car motor technical field especially relates to a motor of making an uproar falls.

Background

When the motor is used, motor noise can be generated to pollute the surrounding environment. The noise reduction motor in the prior art has a complex structure and poor noise reduction effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a motor of making an uproar falls to solve the motor structure of making an uproar that falls among the prior art comparatively complicated, the poor problem of noise reduction effect.

Therefore, the utility model discloses a technical scheme provide a motor of making an uproar falls, include:

the outer rotor assembly is fixedly connected with the hub of the electric vehicle;

the stator assembly is in magnetic coupling corresponding fit with the outer rotor assembly;

the rotating shaft is fixedly connected with the stator assembly;

the two side covers are rotatably arranged at two ends of the rotating shaft and are fixedly connected with two ends of the outer rotor component;

wherein, every the side cover includes fixed section of thick bamboo, outer panel and interior plate, the outer panel with the periphery wall interconnect of interior plate and with the external rotor subassembly is connected, the outer panel with the internal perisporium of interior plate sets up respectively fixed section of thick bamboo is along the ascending both ends of axial of pivot, just the outer panel is located the interior plate is kept away from one side of stator module, the outer panel with form the amortization chamber between the interior plate, be provided with a plurality of bloops on the interior plate.

In one embodiment of the present invention, the outer plate and the inner plate are both circular.

In an embodiment of the present invention, the cross-sectional shape of the outer plate and the inner plate is arc, and the outer plate and the inner plate are both arched towards the direction away from the stator assembly.

In an embodiment of the present invention, the inner side surface of the outer panel is provided with a sound absorbing material.

In an embodiment of the present invention, the silencing hole is round, and the end with larger size of the silencing hole is disposed on one side of the outer side plate.

In an embodiment of the present invention, each of the side covers is fixedly connected to two bearings, two of the bearing sleeves are disposed on the rotating shaft and along the axial direction of the rotating shaft.

The utility model discloses an in one embodiment, still include two fender rings, two the fender ring sets up the both ends of pivot, each the fender ring sets up and is corresponding the outside of side cover, and with be formed with the clearance between the side cover.

The utility model discloses an useful part lies in:

be different from prior art, use the technical scheme of the utility model, during the in-service use, because be provided with a plurality of bloops on the interior plate, the noise that the motor rotated the in-process and produced is absorbed through the bloop and is weakened, and remaining some noise gets into the amortization intracavity and is weakened, then is absorbed by the medial surface of exterior plate to can reduce the noise that the motor rotated the in-process and produced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a noise reduction motor according to an embodiment of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, an embodiment of the present invention provides a noise reduction motor, which includes an outer rotor assembly 1, a stator assembly 2, a rotating shaft 3, and a side cover 4. The outer rotor assembly 1 is fixedly connected with a hub of the electric vehicle. The stator assembly 2 is in magnetic coupling corresponding fit with the outer rotor assembly 1. The rotating shaft 3 is fixedly connected with the stator assembly 2. Two side covers 4 can be rotationally arranged at two ends of the rotating shaft 3, and the two side covers 4 are fixedly connected with two ends of the outer rotor component 1. Wherein, every side cover 4 includes fixed cylinder 43, outer panel 42 and interior plate 41, and the periphery wall interconnect of outer panel 42 and interior plate 41 just is connected with external rotor assembly 1, and the internal perisporium of outer panel 42 and interior plate 41 sets up respectively at fixed cylinder 43 along the ascending both ends of the axial of pivot 3, and outer panel 42 is located the one side that stator module 2 was kept away from to interior plate 41, forms noise damping chamber a between outer panel 42 and the interior plate 41, is provided with a plurality of noise damping holes 411 on the interior plate 41.

When the noise reduction motor is used in practice, the inner side plate 41 is provided with the plurality of sound absorption holes 411, noise generated in the rotation process of the motor is absorbed and weakened through the sound absorption holes 411, and the rest part of noise enters the sound absorption cavity a to be weakened and is then absorbed by the inner side surface of the outer side plate 42, so that the noise generated in the rotation process of the motor can be reduced.

In particular embodiments, the outer plate 42 and the inner plate 41 are each circular.

Further, the cross-sectional shapes of the outer plate 42 and the inner plate 41 are arc-shaped, and both the outer plate 42 and the inner plate 41 are arched away from the stator assembly 2. Thus, the inner side of the arc-shaped outer panel 42 has a good noise absorption effect.

In the embodiment of the present invention, the inner surface of the outer panel 42 is provided with the sound absorbing material 5. In this way, noise can be further absorbed.

In the embodiment of the present invention, the muffling hole 411 is a circular truncated cone, and the larger size of the muffling hole 411 is disposed on one side of the inner plate 41 away from the outer plate 42.

The embodiment of the utility model provides an in, every side cover 4 and two bearing 6 fixed connection, two bearing 6 covers are located and are set up side by side on the pivot 3 and along the axial of pivot 3.

The embodiment of the utility model provides an in, the motor of making an uproar still includes two fender rings 7, and two fender rings 7 set up at the both ends of pivot 3, and every fender ring 7 sets up in the outside of the side cover 4 that corresponds, and is formed with the clearance between 4 with the side cover.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A noise-reducing motor, comprising:

the rotating shaft is fixedly connected with the stator assembly;

2. The noise-reducing motor of claim 1, wherein the outer plate and the inner plate are each annular.

3. The noise-reducing motor of claim 2, wherein the cross-sectional shape of the outer plate and the inner plate is arcuate, the outer plate and the inner plate each arching away from the stator assembly.

4. The noise-reducing motor of claim 3, wherein the inner side of the outer plate is provided with a sound-absorbing material.

5. The noise-reducing motor according to claim 1, wherein the muffling hole is circular truncated cone-shaped, and an end of the muffling hole with a larger size is disposed on a side of the inner plate away from the outer plate.

6. The noise-reducing motor according to claim 1, wherein each of the side covers is fixedly connected to two bearings, and the two bearings are sleeved on the rotating shaft and arranged side by side along an axial direction of the rotating shaft.

7. The noise-reducing motor according to claim 1, further comprising two blocking rings, wherein the two blocking rings are disposed at two ends of the rotating shaft, and each blocking ring is disposed outside the corresponding side cover and forms a gap with the side cover.