CN-224228947-U - Outer fan wing structure

Abstract

The utility model discloses an outer fan wing structure which comprises a hub and an impeller, wherein the impeller is of an integrated structure, the impeller comprises a lantern ring and blades, the lantern ring is provided with a cavity for the hub to be connected, the hub is welded and fixed on the lantern ring, the blades are obliquely arranged along the lantern ring, the blades comprise a front arc edge, a rear arc edge and an outer arc edge, the front arc edge and the outer arc edge are smooth curved edges, and the rear arc edge is bent inwards to form a concave position. The novel energy-saving type energy-saving device has the advantages of simple structure, compact matching, reasonable design and the like, and is a product with excellent technical and economical properties.

Inventors

• DONG JINSONG
• LI TAO
• CHEN XIUZHU
• Zheng Xuanhao
• ZHU BOYAN
• DENG SHANFA
• DAI BAIJUN
• TIAN LIN
• LAN JIANHUA
• LU SHENGXU
• Mo Benling
• HUANG YIN

Assignees

• 宏源地能热泵科技（中山）有限公司

Dates

Publication Date

20260512

Application Date

20250605

Claims (6)

1. 1. An outer fan wing structure is characterized by comprising a hub and an impeller; Impeller structure as an organic whole, impeller include lantern ring and blade, and the lantern ring has the cavity and supplies the wheel hub to insert, and wheel hub welded fastening is at the lantern ring, and the blade sets up along the lantern ring slope, and the blade includes preceding arc limit, back arc limit and outer arc limit, and preceding arc limit is smooth curved edge with outer arc limit, and back arc limit is bent in to the blade and is formed concave position.
2. 2. The outer wing structure of claim 1, wherein the hub has a plurality of ribs circumferentially disposed therein.
3. 3. The outer wing structure of claim 1, wherein the collar ring has a plurality of notches.
4. 4. The outer wing structure of claim 1, wherein the hub is provided with a perforated power supply rotor connection at the center.
5. 5. The outer wing structure of claim 1, wherein the junction of the outer and rear arcuate edges forms an acute angle and the junction of the outer and rear arcuate edges forms an obtuse angle.
6. 6. The outer wing structure of claim 1, wherein the concave portion is smooth and the angle formed by the concave portion is acute.

Description

Outer fan wing structure [ Field of technology ] The utility model mainly relates to an outer fan wing structure. [ Background Art ] At present, an outdoor unit of an air conditioner mainly comprises a heat exchanger, an axial flow fan, an air guide structure, a fan net cover, a motor mounting frame, a partition plate and a compressor system. In general, an axial fan is composed of a hub connected to a motor shaft, and blades distributed at equal intervals and centered on a rotation axis of the fan. The motor drives the fan blade to rotate, the air flow speed near the rotating shaft is low/the air pressure is high, the air flow speed near the edge of the fan blade is low, so that the air pressure difference is formed, the air flows from the axis to the edge of the fan blade, and secondly, when the air flows forwards along the shape of the fan blade, the air behind the fan is continuously supplemented due to the negative pressure of the air flow, so that the continuous propelling air flow, namely the air, is formed. The noise sources of the fan are mainly divided into two types, namely fluid noise caused by the rotation of the fan blades and electromagnetic noise caused by the operation of the motor. How to reduce noise is the direction of our research. [ utility model ] In order to solve at least one of the problems, the utility model provides a new structural scheme, and the outer wing structure adopts the following technical scheme: The outer fan wing structure comprises a hub and an impeller, wherein the impeller is of an integrated structure, the impeller comprises a lantern ring and blades, the lantern ring is provided with a cavity for the hub to be connected in, the hub is welded and fixed on the lantern ring, the blades are obliquely arranged along the lantern ring, the blades comprise a front arc edge, a rear arc edge and an outer arc edge, the front arc edge and the outer arc edge are smooth curved edges, and the rear arc edge is bent inwards to form a concave position. Preferably, the hub is internally and circumferentially lined with a plurality of reinforcing ribs. Preferably, the collar ring is provided with a number of recesses. Preferably, the hub is centrally provided with a perforated motor rotor connection. Preferably, the junction of the outer arc edge and the rear arc edge forms an acute angle position, and the junction of the outer arc edge and the rear arc edge forms an obtuse angle position. Preferably, the concave position is smooth, and the angle formed by the concave position is an acute angle. Compared with the background technology, the utility model has the beneficial effects that: This structure sets up the concave position at back arc limit, and the concave position is to the blade formation of bending in, and back arc limit continues to extend along concave position, because the blade is the slope design, the concave position has reduced the difference in height of preceding arc limit and back arc limit to reduced the differential air pressure, reduced the noise, and do not influence the length on outer arc limit simultaneously, reduce the influence to the amount of wind. The novel energy-saving type energy-saving device has the advantages of simple structure, compact matching, reasonable design and the like, and is a product with excellent technical and economical properties. [ Description of the drawings ] FIG. 1 is a schematic view of an outer wing structure according to a preferred embodiment of the present utility model; FIG. 2 is a schematic view of a second perspective view of an outer wing structure according to a preferred embodiment of the present utility model. [ Detailed description ] of the invention Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. In the present utility model, unless explicitly stated or limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, directly connected, or connected via an intermediate medium, or two elements may be in communication. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. The technical scheme and the beneficial effects of the utility model are more clear and definite by further describing the specific embodiments of the utility model with reference to the drawings in the specification. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the utility model and are not to be construed as limiting the utility model. In the preferred embodiment provided by the utility model, as shown in fig.