CN207229457U

CN207229457U - Centrifugal blower impeller

Info

Publication number: CN207229457U
Application number: CN201720595130.3U
Authority: CN
Inventors: 杨华
Original assignee: Shanghai Chunmi Electronics Technology Co Ltd
Current assignee: Chunmi Technology Shanghai Co Ltd
Priority date: 2017-05-25
Filing date: 2017-05-25
Publication date: 2018-04-13
Anticipated expiration: 2027-05-25

Abstract

The utility model discloses a kind of centrifugal blower impeller, including core disk and blade, multiple blades are uniformly distributed on the excircle of the core disk in spoke-like, the air intake and outlet air end of the blade are respectively arranged on close to one end of the core disk and one end away from the core disk, the height of the blade are stepped up from the air intake to outlet air end.The utility model is stepped up by the height of blade from air intake to outlet air end, can effectively reduce the noise that blade is produced when high speed is rotated with windage.

Description

Centrifugal blower impeller

Technical field

The utility model belongs to household electrical appliance technical field, is used for the centrifugation wind to radiate in more particularly to a kind of household electrical appliance Machine impeller.

Background technology

Centrifugal blower is principle that potential energy is converted to according to kinetic energy with impeller, is added gas using high-speed rotating impeller Speed, then slows down, changes flow direction, kinetic energy is converted into potential energy (pressure).Existing household electrical appliance, such as electromagnetic oven, in order to change Internal components are much carried out radiating and cooling processing by the heat dissipation effect of kind internal environment using centrifugal blower.General centrifugation Height of the blade of wind turbine as air intake is designed as with outlet air end, can so cause blade in high speed rotational operation with The friction area increase of air, produces bigger noise.

Utility model content

The utility model easily produces the technology of noise for centrifugal blower existing in the prior art with the blade of impeller Problem, there is provided a kind of centrifugal blower impeller, to reduce the noise during household electrical appliance use.

In order to solve the above technical problems, the technical solution adopted in the utility model is：

A kind of centrifugal blower impeller, including core disk and blade, multiple blades are uniformly distributed in described in spoke-like On the excircle of core disk, the air intake and outlet air end of the blade are respectively arranged on close to one end of the core disk and away from the core One end of disk, the height of the blade are stepped up from the air intake to outlet air end, and the blade is vertical with core disk.

Preferably, the corner of the air intake of the blade is arranged to the first fillet.

As further preferred, diameter >=0.3mm of first fillet.

Preferably, the corner of the outlet air end of the blade is arranged to the second fillet.

As further preferred, diameter >=0.5mm of second fillet.

Compared with prior art, beneficial effect possessed by the utility model is：The height that the utility model passes through blade It is stepped up from air intake to outlet air end, can effectively reduces the noise that blade is produced when high speed is rotated with windage.

Brief description of the drawings

Fig. 1 is the dimensional structure diagram of the centrifugal blower impeller in the utility model；

Fig. 2 is the exploded perspective view of the centrifugal blower in the utility model.

In figure：

1- core disks；2- blades；

21- air intakes；22- outlet air ends；

The first fillets of 23-；The second fillets of 24-；

3- upper casings；4- lower casings.

Embodiment

It is below in conjunction with the accompanying drawings and specific real to make those skilled in the art more fully understand the technical solution of the utility model Example is applied to elaborate to the utility model.

As shown in Figure 1, the embodiment of the utility model discloses a kind of centrifugal blower impeller, including core disk 1 and blade 2, multiple blades 2 are uniformly distributed on the excircle of core disk 1 in spoke-like, and the air intake 21 and outlet air end 22 of blade 2 are set respectively In close to one end of core disk 1 and one end away from core disk 1, the height of the end face of blade 2 to core disk is from air intake 21 to outlet air end 22 are stepped up, and blade 2 is vertical with core disk 1.

In the present embodiment, the corner of the air intake 21 of blade 2 is arranged to the first fillet 23, and the diameter of the first fillet 23 >= 0.3mm。

In the present embodiment, the corner of the outlet air end 22 of blade 2 is arranged to the second fillet 24, and the diameter of the second fillet 24 >= 0.5mm。

The setting of first fillet 23 and the second fillet 24, can reduce or reduce distinguished and admirable collide with high speed and produce Noise.

In use, as shown in Fig. 2, impeller is installed between upper casing 3 and lower casing 4, gas enters from axial air intake 21 Blade 2, gas are radially redirected when flowing through blade 2, then flow through outlet air end 22.By the height of blade from air intake to outlet air End is stepped up, and air intake and outlet air end are respectively arranged with fillet, can effectively reduce blade high speed rotate when and air Rub the noise produced.

Above example is only the exemplary embodiment of the utility model, is not used in limitation the utility model, this practicality is new The protection domain of type is defined by the claims.Those skilled in the art can be in the essence and protection domain of the utility model It is interior, various modifications or equivalent substitution are made to the utility model, this modification or equivalent substitution also should be regarded as new in this practicality In the protection domain of type.

Claims

1. a kind of centrifugal blower impeller, including core disk and blade, multiple blades are uniformly distributed in the core in spoke-like On the excircle of disk, the air intake and outlet air end of the blade are respectively arranged on close to one end of the core disk and away from the core disk One end, it is characterised in that the height of the blade is stepped up from the air intake to outlet air end, and the blade hangs down with core disk Directly.

2. centrifugal blower impeller according to claim 1, it is characterised in that the corner of the air intake of the blade is set For the first fillet.

3. centrifugal blower impeller according to claim 2, it is characterised in that diameter >=0.3mm of first fillet.

4. centrifugal blower impeller according to claim 1, it is characterised in that the corner of the outlet air end of the blade is set For the second fillet.

5. centrifugal blower impeller according to claim 4, it is characterised in that diameter >=0.5mm of second fillet.