CN210541323U

CN210541323U - Noise reduction unit of dust collector

Info

Publication number: CN210541323U
Application number: CN201920896704.XU
Authority: CN
Inventors: 储海生
Original assignee: Suzhou Shengjiajie Intelligent Technology Co ltd
Current assignee: Suzhou Haisheng New Energy Technology Co ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-05-19
Anticipated expiration: 2029-06-14

Abstract

The application relates to a noise reduction unit of a dust collector, comprising: a motor compartment housing; the motor bin inner shell is arranged at the front end of the interior of the motor bin outer shell, and a gap is formed between the outer wall of the motor bin inner shell and the inner wall of the motor bin outer shell; damping blocks are arranged on two sides of the outer wall of the inner shell of the motor cabin, and one side of each damping block abuts against the inner wall of the outer shell of the motor cabin; the airflow fairing is arranged at the rear end of the interior of the motor cabin outer shell and connected to the rear of the motor cabin inner shell; the HEPA covers the periphery of the airflow fairing; the side wall of the rear end of the motor bin shell is provided with a plurality of air outlet grids. The utility model discloses a can make the holistic noise reduction of dust catcher from reducing two aspects of motor vibration noise and air current noise, the noise reduction effect is good, utilizes the air current radome fairing to make the air current discharge comparatively mild the passing through of outside in-process from the dust catcher shell, has reduced the air current and has directly washed away the air outlet and the noise that produces.

Description

Noise reduction unit of dust collector

Technical Field

The application belongs to the technical field of dust collectors, and particularly relates to a noise reduction unit of a dust collector.

Background

The motor of the dust collector has larger noise when running, so the motor of the dust collector needs to be subjected to noise reduction treatment. The conventional noise reduction method is mainly characterized in that noise reduction sponges are arranged on the air inlet and the air outlet of the dust collector motor, but the effect is poor, the air inlet and exhaust amount of the motor can be reduced, and the working efficiency of the motor is reduced. The motor of the existing dust collector mainly adopts a mode of separating a silencing cavity between an inner cover and an outer cover of the motor to reduce noise, and the principle of the motor is that the sound wave vibration energy is effectively reduced by means of the rotation energy absorption of the silencing cavity after air flow is discharged out of the motor, so that the noise reduction effect is achieved. However, the current devices of this type that use a sound-damping chamber to reduce the noise of the motor still have the following disadvantages: usually, only a first-stage silencing chamber is provided, so that the airflow is discharged out of the motor and then rotates too little, and the energy absorption and noise reduction effects are not obvious.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the defect of large noise of the dust collector in the prior art, the noise reduction unit of the dust collector is provided.

The utility model provides a technical scheme that its technical problem adopted is: a noise reducing unit of a vacuum cleaner, comprising:

a motor compartment housing;

the motor cabin inner shell is arranged at the front end of the interior of the motor cabin outer shell, and a gap is formed between the outer wall of the motor cabin inner shell and the inner wall of the motor cabin outer shell; shock absorption blocks are arranged on two sides of the outer wall of the motor cabin inner shell, and one side of each shock absorption block abuts against the inner wall of the motor cabin outer shell;

the rear end of the airflow fairing is a circular plane, and the circular plane is uniformly provided with air guide holes;

the HEPA mounting rack is connected to the rear end of the airflow fairing;

the silica gel sealing ring is padded between the airflow fairing and the joint of the HEPA mounting rack;

the HEPA is arranged on the HEPA mounting frame and covers the periphery of the airflow fairing;

and a plurality of air outlet grids are arranged on the side wall of the rear end of the motor bin shell.

Preferably, the noise reduction unit of the vacuum cleaner of the present invention, the inner wall of the air guiding hole is streamlined.

Preferably, the utility model discloses a unit of making an uproar falls in dust catcher, the HEPA mounting bracket passes through the buckle to be fixed the outer wall rear end of motor storehouse inner shell.

Preferably, the utility model discloses a unit of making an uproar falls in dust catcher, the rear end of motor storehouse shell has the back lid, the back lid can be dismantled.

Preferably, the utility model discloses a noise reduction unit of dust catcher, the material of snubber block is silica gel.

Preferably, the noise reduction unit of the vacuum cleaner of the present invention, the air outlet grid is aligned with the hypa.

Preferably, the utility model discloses a unit of making an uproar falls in dust catcher, motor storehouse inner shell both sides have to lean on the sand grip of motor storehouse shell inner wall.

The utility model has the advantages that: can make the holistic noise reduction of dust catcher from reducing two aspects of motor vibration noise and air current noise, the noise reduction effect is good, utilizes the air current radome fairing to make the air current discharge comparatively gentle the passing through of outside in-process from the dust catcher shell, has reduced the air current and has directly washed away the air outlet and the noise that produces.

Drawings

The technical solution of the present application is further explained below with reference to the drawings and the embodiments.

FIG. 1 is a schematic structural diagram of a motor compartment housing according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an inner casing of the motor compartment according to an embodiment of the present disclosure;

FIG. 3 is a schematic sectional view of a noise reduction unit of a vacuum cleaner according to an embodiment of the present disclosure;

FIG. 4 is a schematic illustration of the structure of an embodiment of the present application;

fig. 5 is a schematic view of a wind guide hole structure according to an embodiment of the present disclosure.

The reference numbers in the figures are:

1 Motor cabin casing

2 Motor storehouse inner shell

3 airflow fairing

4 HEPA mounting rack

5 Hepa

6 silica gel sealing ring

11 air-out grid

12 rear cover

21 damper block

22 Rib

31 air guide hole

41 snap-fit.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Examples

This embodiment provides a noise reduction unit of a vacuum cleaner, as shown in fig. 1 to 4, comprising:

a motor compartment housing 1;

the motor bin inner shell 2 is arranged at the front end of the interior of the motor bin outer shell 1, and a gap is formed between the outer wall of the motor bin inner shell 2 and the inner wall of the motor bin outer shell 1; two sides of the outer wall of the motor cabin inner shell 2 are provided with damping blocks 21, and one side of each damping block 21 abuts against the inner wall of the motor cabin outer shell 1;

the air flow fairing 3 is arranged at the rear end of the interior of the motor cabin outer shell 1 and connected to the rear of the motor cabin inner shell 2, air guide holes 31 are uniformly distributed on the periphery of the air flow fairing 3 along the circumference, the rear end of the air flow fairing 3 is a circular plane, and the circular plane is uniformly provided with the air guide holes 31;

the HEPA mounting rack 4 is connected to the rear end of the airflow fairing 3;

the silica gel sealing ring 6 is padded between the airflow fairing 3 and the joint of the HEPA mounting rack 4;

the HEPA 5 is arranged on the HEPA mounting frame 4, and the HEPA 5 covers the periphery of the airflow fairing 3;

the side wall of the rear end of the motor bin shell 1 is provided with a plurality of air outlet grids 11.

In the noise reduction unit of the dust collector, the air flow in the motor cabin inner shell 2 flows from front to back at a high speed, and impacts the shell to generate vibration when passing through the motor cabin inner shell 2, and the vibration of the motor cabin inner shell 2 can be effectively reduced by the shock absorption block 21, so that the noise is reduced; the airflow flows out of the motor cabin inner shell 2 and then enters the airflow fairing 3, and a large number of air guide holes 31 can effectively adjust the flow direction of the high-speed airflow, so that the airflow is uniformly dispersed, the vibration amplitude and the frequency of each airflow are basically consistent, and the generated noise is not particularly disordered and harsh; the HEPA 5 further reduces the vibration of the air flow, further equally divides the air flow, finally enables the air flow to flow out of the air outlet grid 11, and the force and the flow direction of the high-speed air flow in the process are processed, so that a good noise reduction effect is achieved.

Preferably, in the noise reduction unit of the vacuum cleaner of the present embodiment, as shown in fig. 5, the inner wall of the air guiding hole 31 has a streamline shape. The streamlined air guide hole 31 has the advantages of small resistance and friction when air flows through, reduced vibration and reduced noise.

Preferably, as shown in fig. 2, the noise reduction unit of the vacuum cleaner of this embodiment is that the hypa mounting bracket 4 is fixed to the rear end of the outer wall of the motor compartment inner housing 2 through a buckle 41, so as to be convenient to disassemble, assemble and replace.

Preferably, as shown in fig. 1, the noise reduction unit of the vacuum cleaner of the present embodiment includes a rear cover 12 at the rear end of the motor chamber housing 1, and the rear cover 12 is detachable, so as to facilitate disassembly, replacement, maintenance and cleaning.

Preferably, in the noise reduction unit of the vacuum cleaner of this embodiment, the damping block 21 is made of silicon rubber. Silica gel material elasticity is good, and antiskid nature is good, can cushion and stabilize motor storehouse inner shell 2.

Preferably, in the noise reduction unit of the vacuum cleaner of the present embodiment, the air outlet grid 11 is aligned with the hypa 5, so as to avoid noise increase when the airflow flows out from the inside.

Preferably, as shown in fig. 2, the noise reduction unit of the vacuum cleaner of this embodiment has protruding strips 22 on two sides of the motor compartment inner housing 2, which abut against the inner wall of the motor compartment outer housing 1. The sand grip 22 can further stabilize the motor cabin inner shell 2, and reduce the vibration of the motor cabin inner shell 2.

In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. A noise reducing unit of a vacuum cleaner, comprising:

a motor compartment housing (1);

the motor cabin inner shell (2) is arranged at the front end of the interior of the motor cabin outer shell (1), and a gap is formed between the outer wall of the motor cabin inner shell (2) and the inner wall of the motor cabin outer shell (1); damping blocks (21) are arranged on two sides of the outer wall of the motor cabin inner shell (2), and one side of each damping block (21) abuts against the inner wall of the motor cabin outer shell (1);

the air flow fairing (3) is arranged at the rear end inside the motor cabin outer shell (1) and connected to the rear of the motor cabin inner shell (2), air guide holes (31) are uniformly distributed on the periphery of the air flow fairing (3) along the circumference, the rear end of the air flow fairing (3) is a circular plane, and the circular plane is uniformly provided with the air guide holes (31);

the HEPA mounting rack (4) is connected to the rear end of the airflow fairing (3);

the silica gel sealing ring (6) is padded between the airflow fairing (3) and the joint of the HEPA mounting rack (4);

the HEPA (5) is arranged on the HEPA mounting rack (4), and the HEPA (5) covers the periphery of the airflow fairing (3);

the side wall of the rear end of the motor bin shell (1) is provided with a plurality of air outlet grids (11).

2. The noise reduction unit of a vacuum cleaner according to claim 1, wherein the inner wall of the air guiding hole (31) is streamlined.

3. The noise reduction unit of the dust collector as claimed in claim 2, wherein the HEPA mounting frame (4) is fixed at the rear end of the outer wall of the motor chamber inner shell (2) through a buckle (41).

4. Noise reduction unit of a vacuum cleaner according to any of claims 1-3, characterized in that the rear end of the motor cartridge housing (1) has a rear cover (12), which rear cover (12) is detachable.

5. The noise reduction unit of a vacuum cleaner according to any of claims 1-3, wherein the shock absorption block (21) is made of silicone.

6. Noise reduction unit for vacuum cleaners according to any of claims 1-3, characterised in that the outlet grille (11) is aligned with the HEPA (5).

7. The noise reduction unit of the dust collector of any one of claims 1 to 3, wherein the two sides of the motor cabin inner shell (2) are provided with raised strips (22) which abut against the inner wall of the motor cabin outer shell (1).