CN217002389U

CN217002389U - Impeller with high-low curved surface structure

Info

Publication number: CN217002389U
Application number: CN202220366435.8U
Authority: CN
Inventors: 孙晓钦; 张炳杰; 何羡乐; 王永广
Original assignee: Zhejiang Deye Motor Technology Co ltd
Current assignee: Zhejiang Deye Motor Technology Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-07-19
Anticipated expiration: 2032-02-23

Abstract

The utility model discloses an impeller with a high-low curved surface structure, which comprises an impeller body, blades and a blade outer ring, wherein the impeller body is conical, a shaft lever is arranged in the center of the impeller body, the shaft lever is provided with a central shaft hole, and the impeller body, the blades, the blade outer ring and the shaft lever are integrally formed by injection molding, and the impeller is characterized in that: the impeller body is connected with the outer circular surface of the shaft rod through the high and low curved surfaces which are distributed on the circumference at the position close to the shaft rod, the high curved surfaces and the low curved surfaces are arranged in a staggered mode, even number of rib plates are distributed on the outer circular surface of the shaft rod in an equal distribution mode, the high and low curved surfaces are separated at the boundary positions corresponding to the high and low curved surfaces, the high curved surfaces are connected with the top of the rib plates, and the low curved surfaces are connected with the waist of the rib plates. The utility model can ensure that the connecting part of the impeller body and the shaft lever is quickly and uniformly radiated when being molded in the plastic die, thereby ensuring better verticality between the central shaft hole and the impeller body, ensuring small radial runout of the impeller product during working, reducing working noise and prolonging service life.

Description

Impeller with high-low curved surface structure

Technical Field

The utility model relates to an automobile air conditioner fan, in particular to an impeller of the automobile air conditioner fan.

Background

The impeller of vehicle air conditioner fan carries out high-speed rotation at the during operation, and prior art's impeller of vehicle air conditioner fan, including impeller body, blade and blade outer loop, impeller body is the toper, and the lower extreme of blade is connected in impeller body's outer fringe, and the upper end of blade is connected in the inner circle of blade outer loop, and impeller body's central authorities are equipped with the axostylus axostyle, and the axostylus axostyle has central shaft hole, and central shaft hole is used for the installation of motor shaft, and impeller body, blade outer loop and axostylus axostyle are integrative injection moulding. Because impeller body and axostylus axostyle excircle directly meet, what impeller body contacted is the excircle of the same high position of axostylus axostyle, and this place is equipped with the floor and strengthens the axostylus axostyle, so the material of this place is concentrated, when the impeller in the shaping of plastic mould, the portion of meeting of impeller body and axostylus axostyle excircle just is difficult to obtain quick even heat dissipation, easily produce irregular deformation and uncontrollable, and then influence the straightness that hangs down between central shaft hole and the impeller body, the radial runout volume of impeller during operation will be great relatively like this, the radial runout volume of generally having about 70% product can exceed standard and be greater than 1.2mm (the qualification value of radial runout volume is below 0.8 mm), noise at work also can increase, and influence product life.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide the impeller with the high-low curved surface structure, which can ensure that the connection part of the impeller body and the shaft lever is quickly and uniformly radiated when being molded in a plastic die, so as to ensure better verticality between the central shaft hole and the impeller body, ensure that the radial runout of a product during working is small, reduce the working noise and prolong the service life.

The utility model is completed by adopting the following technical scheme:

the utility model provides a height curved surface structure impeller, includes impeller body, blade and blade outer loop, and impeller body is the toper, and the lower extreme of blade is connected in impeller body's outer fringe, and the upper end of blade is connected in the inner circle of blade outer loop, and impeller body's central authorities are equipped with the axostylus axostyle, and the axostylus axostyle has central shaft hole, and impeller body, blade outer loop and axostylus axostyle are integrative injection moulding, its characterized in that: the impeller body is connected with the outer circle surface of the shaft rod through high and low curved surfaces which are distributed on the periphery at the position close to the shaft rod, the high curved surfaces and the low curved surfaces are arranged in a staggered mode, even number of rib plates are distributed on the outer circle surface of the shaft rod in an equal distribution mode, the high and low curved surfaces are separated at the boundary positions corresponding to the high and low curved surfaces, the high curved surfaces are connected with the top of the rib plates, and the low curved surfaces are connected with the waist of the rib plates.

Adopt above-mentioned technical scheme's vehicle air conditioner fan's impeller, impeller body changes the traditional design always, impeller body sets up the height curved surface that the circumference distributes in the position that is close to the axostylus axostyle, then make through the height curved surface and form indirect connection between impeller body and the axostylus axostyle excircle, so, impeller body just can not appear concentrating the problem of contact with the same high excircle of axostylus axostyle, thereby effectively overcome the too concentrated condition of here material, like this when the impeller in the plastic mould shaping, impeller body just can obtain quick even heat dissipation with the looks junction site of axostylus axostyle excircle, better straightness that hangs down between the center shaft hole of axostylus axostyle and the impeller body has effectively been guaranteed, the radial run-out of product during operation is little, radial run-out of play is less than 0.3mm, and the operation noise is reduced, and service life is prolonged.

Preferably, the top surface of the rib plate is divided into a left half and a right half from a middle position, wherein the top surface of the high half is equal to the top height of the rib plate and is used for connecting the high curved surface, and the top surface of the low half is equal to the waist height of the rib plate and is used for connecting the low curved surface. The design can better ensure material distribution and realize rapid and uniform heat dissipation.

Drawings

The utility model has the following drawings:

figure 1 is a view showing the configuration of the present invention,

figure 2 is a rear side view in the direction of figure 1,

fig. 3 is an axial sectional view.

Detailed Description

As shown in the figure, the impeller with the high-low curved surface structure comprises an impeller body 1, blades 2 and a blade outer ring 3, wherein the impeller body 1 is a conical thin shell, the lower ends of the blades 2 are connected to the outer edge of the impeller body 1, the upper ends of the blades 2 are connected to the inner ring of the blade outer ring 3, the outer edge of the impeller body 1 is provided with a fillet transition curved surface 9, small blades 10 are circumferentially distributed on the fillet transition curved surface 9, the small blades 10 correspond to the blades 2 one by one, the small blades 10 and the blades 2 are distributed at the same circumferential angle, the center of the impeller body 1 is provided with a shaft lever 4, the shaft lever 4 is provided with a central shaft hole 5, the central shaft hole 5 is used for being connected with a motor shaft, the impeller body 1, the blades 2, the blade outer ring 3, the small blades 10 and the shaft lever 4 are integrally formed by injection molding, the impeller body 1 is connected with the outer circle surface of the shaft lever 4 through the high-low curved surfaces distributed circumferentially at the position close to the shaft lever, the high curved surfaces 6 and the low curved surfaces 7 are arranged in a staggered way, the high curved surface 6 and the low curved surface 7 are designed to have equal width, the high curved surface 6 is provided with five positions, the low curved surface 7 is also provided with five positions, ten rib plates 8 are distributed on the outer circle surface of the shaft rod 4 in equal parts, the position of each rib plate 8 corresponds to the boundary position of the high curved surface to separate the high curved surface 6 from the low curved surface 7, the high curved surface 6 is connected with the top of the rib plate 8, the low curved surface 7 is connected with the waist of the rib plate 8, the top surface of the rib plate 8 is divided into a high left half and a low right half from the middle position, wherein the height of the high top surface is equal to that of the top of the rib plate and is used for connecting the high curved surface, and the height of the low top surface is equal to that of the waist of the rib plate and is used for connecting the low curved surface.

The impeller with the high-low curved surface structure is molded in the plastic mold, the radial runout can be controlled below 0.3mm, and compared with the radial runout of the traditional impeller which is more than 1.2mm, the impeller obviously improves one level, so that the impeller can better ensure the stable operation in working, reduce the working noise and prolong the service life.

Claims

1. The utility model provides a height curved surface structure impeller, includes impeller body, blade and blade outer loop, and impeller body is the toper, and the lower extreme of blade is connected in impeller body's outer fringe, and the upper end of blade is connected in the inner circle of blade outer loop, and impeller body's central authorities are equipped with the axostylus axostyle, and the axostylus axostyle has central shaft hole, and impeller body, blade outer loop and axostylus axostyle are integrative injection moulding, its characterized in that: the impeller body is connected with the outer circle surface of the shaft rod through high and low curved surfaces which are distributed on the periphery at the position close to the shaft rod, the high curved surfaces and the low curved surfaces are arranged in a staggered mode, even number of rib plates are distributed on the outer circle surface of the shaft rod in an equal distribution mode, the high and low curved surfaces are separated at the boundary positions corresponding to the high and low curved surfaces, the high curved surfaces are connected with the top of the rib plates, and the low curved surfaces are connected with the waist of the rib plates.

2. The impeller with high and low curved surface structure as claimed in claim 1, wherein: the high curved surface and the low curved surface are designed to be equal in width, the top surface of the ribbed plate is divided into a left half and a right half from the middle position, the height of the top surface of the high half is equal to that of the top of the ribbed plate and used for connecting the high curved surface, and the height of the top surface of the low half is equal to that of the waist of the ribbed plate and used for connecting the low curved surface.