CN218542651U

CN218542651U - Fan of making an uproar falls in height

Info

Publication number: CN218542651U
Application number: CN202222401194.9U
Authority: CN
Inventors: 张全义; 雷希强; 先宇; 王观武; 莫天同; 黎家艺; 刘光辉; 李红光
Original assignee: Huizhou Aimeijia Magnetoelectric Technology Co ltd
Current assignee: Huizhou Aimeijia Magnetoelectric Technology Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-02-28
Anticipated expiration: 2032-09-09

Abstract

The utility model relates to a fan technical field specifically is a fan of making an uproar falls highly, including last spiral case, go up fixed mounting on the spiral case and have lower spiral case, fixed mounting has the motor on the spiral case down, the output shaft of motor rotates and runs through spiral case and fixed mounting down and has the flabellum, it is cotton to go up the inner wall laminating of spiral case and install first silence, it is cotton to go up the laminating of spiral case air intake inner wall and install the third silence, the second silence is cotton to the laminating of the inner wall of spiral case down, the output shaft one end of motor is provided with the spacing groove, the shell inner wall of motor is provided with limit flange. The utility model discloses a set up first silence cotton and second silence cotton respectively on last spiral case and lower spiral case, can absorb the noise that the flabellum produced when rotating effectively, set up the third silence cotton in last spiral case air intake department simultaneously, can prevent effectively because the air inlet leads to the air and produces a large amount of noises with the lateral wall friction of last spiral case air intake department.

Description

Fan of making an uproar falls in height

Technical Field

The utility model relates to a fan technical field specifically is a fan of making an uproar falls in height.

Background

Along with the continuous optimization of the whole sweeper, the sweeper robot can walk into thousands of households, the working environment of the sweeper is complex and various, the originally designed dust absorption fan has higher requirements, the dust absorption fan absorbs external air, and dust enters a machine in a dust absorption bag along with the air through the dust absorption fan.

Along with the increase of dust absorption fan power, the noise that current dust absorption fan produced is great to, the fan blade of fan when rotating, because the air current reason can produce the problem of come-up, because come-up can lead to the blade also to produce the friction between the spiral case, make the motor can't export according to rated power, thereby cause the condition that the motor generates heat seriously, even burns out.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fan of making an uproar falls highly to solve the problem that proposes in the above-mentioned background art. In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a fan of making an uproar falls in height, includes the spiral case, go up fixed mounting on the spiral case and have lower spiral case, fixed mounting has the motor on the spiral case down, the output shaft of motor rotates and runs through spiral case and fixed mounting down and has the flabellum, it is cotton to go up the inner wall laminating of spiral case and install first silence, it is cotton to go up the laminating of spiral case air intake inner wall and install the third silence, the laminating of the inner wall of spiral case installs the second silence down, the output shaft one end of motor is provided with the spacing groove, the shell inner wall of motor is provided with limit flange.

Preferably, the upper volute is fixedly provided with a fixed cylinder through two fixed frames.

Preferably, the top end of the output shaft of the motor is rotatably arranged in the fixed cylinder.

Preferably, the limiting flange is matched with the limiting groove, and the limiting flange is positioned in the limiting groove.

Preferably, a PCBA is mounted on the housing of the motor.

Preferably, the PCBA is electrically connected to the motor.

Preferably, the top of the fan blade is provided with an installation groove.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up first silence cotton and second silence cotton respectively on last spiral case and lower spiral case, can absorb the noise that the flabellum produced when rotating effectively, set up the third silence cotton in last spiral case air intake department simultaneously, can prevent effectively because the air inlet leads to the air and produces a large amount of noises with the lateral wall friction of last spiral case air intake department.

The utility model discloses a set up the position that limit flange can restrict motor output shaft, restrict the position of flabellum through motor output shaft, prevent because the air current reason leads to the problem of flabellum come-up.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a schematic view of a fan blade according to the present invention;

fig. 4 is a second schematic view of the fan blade structure of the present invention.

In the figure: 1. an upper volute; 101. a first silent cotton; 102. third silent cotton; 2. a lower volute; 201. a second silent cotton; 3. a motor; 301. a limiting groove; 302. a limiting flange; 4. a fan blade; 401. mounting grooves; 5. PCBA; 6. a fixed mount; 7. and (4) fixing the cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the staff of ordinary skill in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a fan of making an uproar falls, including last spiral case 1, go up spiral case 1 and go up fixed mounting spiral case 2 down, fixed mounting has motor 3 on the spiral case 2 down, motor 3's output shaft rotates and runs through spiral case 2 and fixed mounting has flabellum 4 down, the inner wall laminating of going up spiral case 1 installs first silence cotton 101, it installs third silence cotton 102 to go up spiral case 1 air intake inner wall laminating, the inner wall laminating of spiral case 2 is installed the second silence cotton 201 down, motor 3's output shaft one end is provided with spacing groove 301, motor 3's shell inner wall is provided with spacing flange 302.

In this embodiment, the upper volute 1 is fixedly provided with a fixed cylinder 7 through two fixed frames 6.

In this embodiment, the top end of the output shaft of the motor 3 is rotatably mounted in the fixed cylinder 7.

In this embodiment, the position-limiting flange 302 is matched with the position-limiting groove 301, and the position-limiting flange 302 is located in the position-limiting groove 301.

In this embodiment, a PCBA5 is mounted on the housing of the motor 3.

In this embodiment, the PCBA5 is electrically connected to the motor 3.

In this embodiment, the top of the fan blade 4 is provided with a mounting groove 401.

In another embodiment, a sound-absorbing cotton sliver is attached to the mounting groove 401, and the sound-absorbing cotton sliver can absorb noise generated by vibration of the fan blades 4.

The utility model discloses a use method and advantage: when the fan is used, the working process is as follows:

as shown in fig. 1, 2, 3 and 4, in the rotation process of the fan blade 4, when the air current is transferred at a high speed and contacts the upper volute 1 or the lower volute 2, the upper volute 1 or the lower volute 2 may vibrate to generate noise, and the first silencing cotton 101 and the second silencing cotton 201 may absorb the vibration to reduce noise decibels and achieve a high noise reduction effect, and in order to suppress the noise generated by the fan blade 4 in the rotation process, the sound-absorbing cotton matched with the fan blade may be installed in the installation groove 401 to achieve the sound-absorbing effect, and in addition, since the fan blade 4 and the power output shaft of the motor 3 are in interference fit, when the problem of upward floating occurs in the rotation process of the fan blade 4, the output shaft of the motor 3 is usually driven to move upward together, and since the limiting groove 301 and the limiting flange 302 are provided, the power output shaft of the motor 3 may be fixed and cannot move, thereby preventing the problem of upward floating of the fan blade 4.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fan of making an uproar falls in height, includes the spiral case, go up fixed mounting on the spiral case and have lower spiral case, fixed mounting has the motor on the spiral case down, the output shaft of motor rotates and runs through spiral case and fixed mounting down and has flabellum, its characterized in that: go up the inner wall laminating of spiral case and install first silence cotton, it installs the third silence cotton to go up the laminating of spiral case air intake inner wall, the inner wall laminating of spiral case is installed the second silence cotton down, the output shaft one end of motor is provided with the spacing groove, the shell inner wall of motor is provided with spacing flange.

2. The fan of claim 1, wherein: and the upper volute is fixedly provided with a fixed barrel through two fixed frames.

3. The fan of making an uproar falls in claim 1, characterized in that: the top end of the output shaft of the motor is rotatably arranged in the fixed cylinder.

4. The fan of making an uproar falls in claim 1, characterized in that: the limiting flange is matched with the limiting groove, and the limiting flange is positioned in the limiting groove.

5. The fan of making an uproar falls in claim 1, characterized in that: and a PCBA is arranged on the shell of the motor.

6. The fan of making an uproar falls in claim 5, characterized in that: PCBA electric connection motor.

7. The fan of making an uproar falls in claim 1, characterized in that: the top of the fan blade is provided with a mounting groove.