CN217508441U

CN217508441U - Superspeed wind motor vibration/noise reduction structure

Info

Publication number: CN217508441U
Application number: CN202221584659.2U
Authority: CN
Inventors: 李坚
Original assignee: Shenzhen Zhi Xiang Yuan Technology Co ltd
Current assignee: Shenzhen Zhi Xiang Yuan Technology Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-09-27
Anticipated expiration: 2032-06-23
Also published as: JP3239445U

Abstract

The utility model belongs to the technical field of motor equipment, in particular to a damping and noise reducing structure of an ultra-high speed wind motor, which comprises a cylindrical silica gel bracket; one end of the motor shell is provided with an opening and a stator cavity is arranged in the motor shell, the other end of the motor shell is provided with a through hole and a bearing cavity is arranged in the motor shell, and the bearing cavity is communicated with the stator cavity; the bearing assembly is sleeved in the silica gel support and is inserted into the bearing cavity; one end of the motor rotor is inserted into the bearing cavity and penetrates out of the through hole, the other end of the motor rotor is rotatably sleeved in the motor stator, and the motor stator is inserted into the stator cavity. The utility model discloses a set up the silica gel support between bearing assembly and motor housing, make the bearing not with motor housing direct contact, moving part forms a suspension state to through cyclic annular bellied setting, further reduced the area of contact of silica gel support with motor housing, thereby the vibrations that produce when reducing electric motor rotor and rotate transmit motor housing, resonance and noise when effectively having reduced motor operation.

Description

Superspeed wind motor vibration/noise reduction structure

Technical Field

The utility model belongs to the technical field of electrical equipment, concretely relates to hypervelocity wind class motor vibration/noise reduction structure.

Background

Under the prior art, the bearing of high rotational speed motor is generally directly installed in the bearing cavity of metal motor housing, and when motor rotor and paddle rotated, the vibrations that produce directly transmitted to motor housing through the bearing to lead to the resonance to send the noise easily, influence user's use impression, and the normal operating of interference motor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in the defect that resonance produced the noise easily takes place when the high rotational speed motor of customer service prior art operates at a high speed to a hypervelocity wind class motor vibration/noise reduction structure is provided.

A shock absorption and noise reduction structure of an ultra-high speed wind motor comprises a motor shell, a bearing assembly, a motor stator, a motor rotor and a cylindrical silica gel support, wherein a plurality of annular bulges are formed at intervals on the periphery of the silica gel support; one end of the motor shell is provided with an opening and a stator cavity is arranged in the motor shell, the other end of the motor shell is provided with a through hole and a bearing cavity is arranged in the motor shell, and the bearing cavity is communicated with the stator cavity; the bearing assembly is sleeved in the silica gel support and is inserted into the bearing cavity; one end of the motor rotor is inserted into the bearing cavity and penetrates out of the through hole, the other end of the motor rotor is rotatably sleeved in the motor stator, and the motor stator is inserted into the stator cavity. The utility model discloses a set up the silica gel support between bearing assembly and motor housing, make bearing assembly not with motor housing direct contact, moving part forms a suspended state to through annular bellied setting, further reduced silica gel support and motor housing's area of contact, thereby the vibrations that produce when reducing electric motor rotor and rotate transmit motor housing, resonance and noise when effectively having reduced the motor operation.

Furthermore, six annular bulges are arranged, and three annular bulges are arranged at two ends of the silica gel support respectively. Through the protruding setting of six annular, the silica gel support can more stably set up in the bearing housing to set up the setting of three respectively at both ends and guaranteed the silica gel support keep balanced, motor rotor keeps steady when rotating during.

Further, the bearing assembly includes a pair of bearings coaxially disposed and a spring fixed between the two bearings. Through the arrangement of the bearing assembly, the spring can generate axial pre-pressure to the two bearings, so that the noise of the bearings is reduced, and meanwhile, the durability of the bearings is improved.

Further, the motor stator is completely wrapped in the stator cavity. Compared with the conventional design that the stator cavity only wraps the motor stator by half of the depth, the stator cavity completely wraps the motor stator, and the concentricity between the motor stator and the motor shell is improved, so that the concentricity of the motor stator and the motor rotor is improved, and the noise and vibration generated by the motor are further reduced.

Further, the motor shell comprises an inner wall and an outer wall sleeved on the inner wall, the plurality of air deflectors are fixedly connected with the inner wall and the outer wall, and an air channel is formed between the inner wall and the outer wall; the motor rotor is fixed to the end, penetrating out of the through hole, of the motor rotor and rotates along with the motor rotor. Through the cooperation setting of paddle and wind channel, the rotatory air current that produces of paddle passes the wind channel, can effectively dispel the heat to the motor.

Further, the air deflector is helical and is arranged in an inclined manner, and the inclined direction is opposite to the inclined direction of the blade. Through the arrangement that the inclination directions of the air deflector and the blades of the paddle are opposite, the air deflector can be matched with air flow generated by rotation of the paddle, the acting efficiency of the motor is improved, and the air flow generated by the motor generates a coanda effect.

Furthermore, the air deflector has seven. Through the arrangement of the seven air deflectors, air flow can be guided more effectively.

Has the advantages that:

1. the utility model discloses a set up the silica gel support between bearing assembly and motor housing, make bearing assembly not directly contact with motor housing, the moving part forms a suspended state, and through the setting of annular arch, further reduced the area of contact of silica gel support and motor housing, thereby reduce the vibrations that produce when motor rotor rotates and transmit to motor housing, effectively reduced resonance and noise when the motor operates; through the protruding setting of six annular, the silica gel support can more stably set up in the bearing housing to set up the setting of three respectively at both ends and guaranteed the silica gel support keep balanced, motor rotor keeps steady when rotating during.

2. The utility model can generate axial pre-pressure to the two bearings by the arrangement of the bearing assembly, thereby reducing the noise of the bearings and simultaneously increasing the durability of the bearings; compared with the conventional design that the stator cavity only wraps the motor stator by half of the depth, the stator cavity completely wraps the motor stator, and the concentricity between the motor stator and the motor shell is improved, so that the concentricity of the motor stator and the motor rotor is improved, and the noise and vibration generated by the motor are further reduced.

3. The utility model is arranged by matching the paddle with the air duct, the air flow generated by the rotation of the paddle passes through the air duct, and the motor can be effectively cooled; the wind deflector and the blades of the paddle are arranged in opposite inclination directions, so that the wind deflector can be matched with airflow generated by rotation of the paddle, the acting efficiency of the motor is improved, and the airflow generated by the motor generates a coanda effect; through the arrangement of the seven air deflectors, air flow can be guided more effectively.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

FIG. 2 is a schematic diagram of the explosion structure of the present invention;

fig. 3 is a schematic view of the installation structure of the present invention.

Reference numerals: 1. a motor housing; 11. a bearing cavity; 12. a stator cavity; 13. an air deflector; 21. a bearing; 22. a spring; 3. a silica gel support; 31. an annular projection; 4. a motor stator; 5. a motor rotor; 6. a blade.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1, 2 and 3, the embodiment provides a damping and noise reducing structure for an ultra-high speed wind motor, which includes a motor housing 1, a bearing assembly, a motor stator 4, a motor rotor 5, and a cylindrical silica gel support 3, wherein a plurality of annular protrusions 31 are formed at intervals on the periphery of the silica gel support 3; one end of the motor shell 1 is open and provided with a stator cavity 12 inside, the other end of the motor shell is provided with a through hole and provided with a bearing cavity 11 inside, and the bearing cavity 11 is communicated with the stator cavity 12; the bearing assembly is sleeved in the silica gel bracket 3 and is inserted into the bearing cavity 11; one end of the motor rotor 5 is inserted into the bearing cavity 11 and penetrates out of the through hole, the other end of the motor rotor is rotatably sleeved in the motor stator 4, and the motor stator 4 is inserted into the stator cavity 12. Motor housing 1 is the metal material, has ensured the firm durable of motor.

Through set up silica gel support 3 between bearing assembly and motor housing 1, make bearing assembly not with motor housing 1 direct contact, moving part forms a suspended state to through the setting of annular arch 31, further reduced the area of contact of silica gel support 3 with motor housing 1, thereby the vibrations that produce when reducing motor rotor 5 rotates transmit motor housing 1, resonance and noise when effectively having reduced the motor operation.

Specifically, there are six annular protrusions 31, and three annular protrusions are respectively disposed at two ends of the silicone rubber holder 3. Through the setting of six annular bulges 31, silica gel support 3 can more stably set up in bearing cavity 11 to set up the setting that sets up three respectively at both ends and ensured silica gel support 3 keep balanced, motor rotor 5 keeps steady when rotating during.

The bearing assembly includes a pair of bearings 21 coaxially disposed and a spring 22 fixed between the two bearings 21. The spring 22 is in a compressed state, and the spring 22 can generate pre-pressure to the two bearings 21 by the arrangement of the bearing assembly, thereby reducing the noise of the bearings 21 and improving the durability of the bearings 21.

As a further improvement of this embodiment, the motor stator 4 is completely enclosed in the stator cavity 12. For the setting that motor stator 4 half degree of depth only is lived to conventional design stator cavity 12, stator cavity 12 wraps up motor stator 4 completely, has improved the concentricity between motor stator 4 and motor housing 1 to the concentricity of motor stator 4 and motor rotor 5 has been improved, the noise and the vibrations that have further reduced the motor and produced.

The motor shell 1 comprises an inner wall and an outer wall sleeved on the inner wall, and a plurality of air deflectors 13 are fixedly connected with the inner wall and the outer wall and form an air channel between the inner wall and the outer wall; still include paddle 6, paddle 6 with electric motor rotor 5 wears out the one end of through-hole fixed, and along with electric motor rotor 5 rotates. When the motor rotor 5 rotates, the blades 6 are driven to rotate, and the blades of the blades 6 which are obliquely arranged send airflow into the air duct; through the cooperation setting of paddle 6 and wind channel, the rotatory air current that produces of paddle 6 passes the wind channel, can effectively dispel the heat to the motor.

The wind deflector 13 is spirally and obliquely arranged, and the inclination direction is opposite to the inclination direction of the blades 6. Through the arrangement that the inclination directions of the air deflector 13 and the blades of the paddle 6 are opposite, the air deflector 13 can cooperate with the air flow generated by the rotation of the paddle 6, the acting efficiency of the motor is improved, and the air flow generated by the motor generates a coanda effect.

Seven air deflectors 13 are provided. The arrangement of the seven air deflectors 13 can guide the air flow more effectively.

The working principle is as follows: by additionally arranging the silica gel bracket 3 between the bearing assembly and the bearing cavity 11 of the motor shell 1, moving parts including the motor stator 4 are isolated from the motor shell 1, so that the vibration generated when the motor operates is reduced and transmitted to the motor shell 1, and the generation of larger vibration noise is avoided; simultaneously, through the arrangement of the blades 6 and the air channel, the blades of the blades 6 are matched with the inclined angle of the air deflector 13 in the air channel, so that the air deflector 13 and the blades 6 rotate to generate an air flow effect, and the acting efficiency of the motor is improved.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the technical field of the utility model, without departing from the concept of the invention, can also make a plurality of equal substitution or obvious variants, and the performance or the usage is the same, should all be regarded as belonging to the utility model's protection within the scope.

Claims

1. A shock absorption and noise reduction structure of an ultra-high speed wind motor comprises a motor shell (1), a bearing assembly, a motor stator (4) and a motor rotor (5), and is characterized by further comprising a cylindrical silica gel support (3), wherein a plurality of annular bulges (31) are formed at intervals on the periphery of the silica gel support (3); one end of the motor shell (1) is opened, a sub-cavity (12) is arranged in the motor shell, a through hole is formed in the other end of the motor shell, a bearing cavity (11) is arranged in the through hole, and the bearing cavity (11) is communicated with the stator cavity (12); the bearing assembly is sleeved in the silica gel support (3) and is inserted into the bearing cavity (11); one end of the motor rotor (5) is inserted into the bearing cavity (11) and penetrates out of the through hole, the other end of the motor rotor is rotatably sleeved in the motor stator (4), and the motor stator (4) is inserted into the stator cavity (12).

2. The structure of claim 1, wherein six annular protrusions (31) are provided, and three annular protrusions are provided at each end of the silica gel bracket (3).

3. A ultra high speed wind motor shock-absorbing and noise-reducing structure according to claim 1, wherein said bearing assembly comprises a pair of bearings (21) coaxially disposed and a spring (22) fixed between two of said bearings (21).

4. The structure of claim 1, wherein the motor stator (4) is completely wrapped in the stator cavity (12).

5. The ultra-high speed wind motor shock absorption and noise reduction structure according to claim 1, wherein the motor housing (1) comprises an inner wall and an outer wall sleeved on the inner wall, a plurality of air deflectors (13) are fixedly connected with the inner wall and the outer wall, and an air duct is formed between the inner wall and the outer wall; the motor rotor structure is characterized by further comprising a paddle (6), wherein the paddle (6) is fixed with one end, penetrating out of the through hole, of the motor rotor (5) and rotates along with the motor rotor (5).

6. The ultra-high speed wind-based motor shock-absorbing and noise-reducing structure according to claim 5, wherein said air guiding plate (13) is helical and inclined in a direction opposite to the direction of inclination of the blades of said blades (6).

7. The ultra-high speed wind motor shock-absorbing and noise-reducing structure according to claim 5, wherein said air deflector (13) has seven pieces.