WO2018064854A1

WO2018064854A1 - Impeller structure

Info

Publication number: WO2018064854A1
Application number: PCT/CN2016/105997
Authority: WO
Inventors: 王保华
Original assignee: 王保华
Priority date: 2016-10-07
Filing date: 2016-11-16
Publication date: 2018-04-12
Also published as: CN206111434U

Abstract

An impeller structure, comprising a wheel hub (1), around the periphery of which several blades are evenly arranged, each of the blades consisting of an upper spiral spreading surface (2) and a lower spiral spreading surface (3); the lower spiral spreading surface (3) is a windward surface and comprises an upper windward section (3.1), a main windward section (3.2) and a lower windward section (3.3); the upper windward section (3.1) is provided on the upper portion of the main windward section (3.2), and the transition portion between the upper windward section (3.1) and the main windward section (3.2) is straight; an angle A is formed between the upper windward section (3.1) and the main windward section (3.2) and the horizontal plane of the impeller, the angle A being 20°-60°. By means of the structural improvement, the impeller has a simple and reasonable structure, low production cost, a large air volume of blades, low noise levels, high air-drying efficiency, a long life span and is easy to mount, having high applicability.

Description

Wind impeller structure

Technical field

The utility model relates to a wind impeller structure, which is mainly suitable for a wind impeller of a hair dryer.

Background technique

At present, almost all wind turbine impellers or other wind-powered wind impellers are driven in one direction, and the wind efficiency is ensured by continuously adjusting the windward or downwind direction, resulting in a complicated structure of the wind turbine system, and at the same time Adding a wind direction follow-up control system not only increases the cost, but also increases the operating cost and reduces the work efficiency. Especially for high-power system wind turbines, even with an excellent wind direction follow-up control system, it is difficult to achieve high-sensitivity follow-up with rapid and frequent wind direction changes. Therefore, the development of a wind direction-independent wind engine is an extremely problem to be solved.

The existing universal wind impeller is a frame type one-way vertical turbofan structure, which can realize wind direction independent wind power generation function, but its wind efficiency is very low. The recently developed universal wind impeller is a large leaf fan with a small flap fan structure. Although wind direction independent wind power generation and high wind efficiency can be realized, its complicated blade structure will make operation and maintenance difficult. The workload is increased, and it also causes high operating noise and loss.

Chinese Patent Publication No. CN201865968U discloses an impeller for an electric hair dryer on June 15, 2011, comprising a hub and a plurality of blades fixedly disposed on an outer circumferential surface of the hub, characterized in that: the blade and the The intersection line of the outer peripheral surface of the hub is a diagonal line or a spiral line, and the impeller further includes a cowl sleeve sleeved outside the plurality of blades, and the circumference of the circumference sleeve is open to form an air inlet of the impeller And the air outlet, the hub, the blade and the siege sleeve are integrated into one. Compared with the prior art, the utility model has the advantages that the intersection line of the blade on the circumferential surface of the hub is oblique or spiral, and the outer end of the blade is sleeved with a siege sleeve, when the motor drives the hub When rotating, due to the guiding effect of the weir sleeve, the air at the air inlet can only flow out from the air outlet along the inner cavity of the siege sleeve, so that the flow direction of the air flow from the air inlet to the air outlet is unique, and the air flow direction It is more concentrated and improves the air outlet rate; moreover, the airflow is restrained by the containment sleeve during the flow process, the airflow is not blown toward the tail of the casing, the flow direction is clear, and eddy current is avoided, so that the airflow is smooth and the noise is small. . Its structure needs to be further improved and improved.

Utility model content

The purpose of the utility model is to provide a wind impeller structure which is simple and reasonable in structure, has high air volume, low noise, excellent performance, low manufacturing cost, long service life and convenient installation, and overcomes the deficiencies in the prior art.

A wind impeller structure designed according to the purpose, comprising a hub, the hub is surrounded by a plurality of blades, characterized by: 6-10 blades, each blade having a horn shape, in each blade The tail of the windward side is tangentially smooth and slanted, and each blade is composed of an upper spiral unfolding surface and a lower spiral unfolding surface, wherein the lower spiral unfolding surface is a windward surface, and includes an upper windward section, a main wind upwind section and a lower windward section. The upper windward section is arranged at the upper part of the main wind upwind section, and the two are linear transitions, and an angle A is formed between the upper windward section and the main wind upwind section and the horizontal plane of the wind impeller, and the angle A is an angle of 20-60 degrees.

The angle A is an angle of 40 degrees.

The lower windward section has a circular arc shape and is disposed at a lower portion of the main wind upwind section, and the lower windward section is tangentially transitioned with the horizontal plane of the wind impeller.

The blades are provided with 6-10 pieces.

The blade is provided with 8 pieces, and the ring is evenly distributed around the hub, and a reinforcing rib is disposed between each blade and the hub.

The upper spiral unfolding surface is an inner concave surface, and the lower spiral unfolding surface is an outer convex ridge surface, and the upper spiral unfolding surface and the lower spiral developing surface are gradually thinned from the central portion to the outer edge respectively, and the upper portion of the upper spiral unfolding surface is upwardly and upwardly The thickness gradually becomes thinner.

A rubber inlet hole is disposed at a center of the hub, and is integrally molded with the blade by injection molding.

According to the improvement of the above structure, each blade is composed of an upper spiral unfolding surface and a lower spiral unfolding surface, and the lower spiral unfolding surface is a windward surface and is a convex convex surface, and includes an upper windward section, a main windwinding section, and In the lower windward section, the structure can effectively increase the area in contact with the wind, and it has a good wind collecting effect, even in the case of breeze, and the wind acts on the lower spiral during the rotation of the wind impeller. The convex surface of the surface, due to the curved surface design of the convex convex surface, The majority of the wind acts on the curved surface and forms a local low-pressure zone. On the one hand, the low-pressure zone guides the wind from the low-pressure cavity of one blade to the adjacent next blade, so that the wind energy forms a vortex in the low-pressure circulation channel. Rotation, further driving the rotation of the blades, thereby improving the rotation efficiency of the low wind speed; increasing the air volume while significantly reducing the noise; and providing a rubber hole at the center of the hub, and integrally forming with the blade by injection molding, effective The ground avoids the weld line of the wind impeller, prevents the wind impeller from rupturing during operation, ensures its service life, and at the same time reduces the secondary material generated during the injection molding process, thereby effectively reducing the production cost. The utility model has the advantages of simple and reasonable structure, low manufacturing cost, large air volume of the wind blade, low noise, high air-drying efficiency, long service life and convenient installation, and the utility model has strong practicability.

DRAWINGS

1 to 3 are schematic perspective views of an embodiment of the present invention.

4 is a schematic front view showing the structure of an embodiment of the present invention.

FIG. 5 is a schematic rear view of the embodiment of the present invention.

FIG. 6 is a schematic bottom view of the embodiment of the present invention.

FIG. 7 is a schematic top plan view of an embodiment of the present invention.

FIG. 8 is a schematic diagram of a left side structure according to an embodiment of the present invention.

Figure 9 is a schematic top plan view (cutaway) of an embodiment of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Referring to Figures 1-9, the wind impeller structure is exemplified by a wind impeller of a hair dryer, including a hub 1. The circumference of the hub 1 is uniformly distributed with a plurality of blades, and is composed of 6-10 blades, each of which has a horn The shape is rounded and tangentially curved at the tail of the windward side of each blade, and each blade is composed of an upper spiral unfolding face 2 and a lower spiral unfolding face 3, wherein the lower spiral unfolding face 3 is a windward face and includes an upward windward Section 3.1, the main wind windward section 3.2 and the lower windward section 3.3, the upper windward section 3.1 is set in the upper part of the main wind upwind section 3.2, and the two are straight transitions.

The upper windward section 3.1 and the main wind upwind section 3.2 form an angle A with the horizontal plane of the wind impeller, the angle A being an angle of 20-60 degrees; in particular, the angle A of the structure is preferably 40 degrees.

Further speaking, the lower windward section 3.3 has a circular arc shape and is disposed under the main wind upwind section 3.2. The lower windward section 3.3 is tangential to the horizontal plane of the wind impeller.

Further, the blade is provided with 6-10 pieces; specifically, the blade of the structure is preferably provided with 8 pieces, and the ring is evenly distributed around the hub 1, and a reinforcing rib 4 is disposed between each blade and the hub 1.

Further, the upper spiral unfolding surface 2 is an inner concave surface, the lower spiral developing surface 3 is an outer convex ridge surface, and the upper spiral developing surface 2 and the lower spiral developing surface 3 are gradually thinned from the central portion to the outer edge, and the upper spiral is unfolded. The upper portion of the face 2 is gradually thinner from the upper end.

Further, the center of the hub 1 is provided with a rubber feed hole 1.1 and is integrally molded with the blade by injection molding.

After testing, the wind impeller of the same diameter of the hair dryer, the noise of the existing structure is 85dB, the noise of the improved structure is 78dB, and the noise is significantly reduced.

The basic principles, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-described embodiments, and the present invention is only described in the foregoing embodiments and the description of the present invention, without departing from the spirit and scope of the present invention. Various changes and modifications are possible which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and their equivalents.

Claims

A wind impeller structure comprising a hub (1), the hub (1) is uniformly surrounded by a plurality of blades, and is characterized by 6-10 blades, each blade having a horn shape, in each blade The tail of the windward side is tangentially smoothed by a curve, and each blade is composed of an upper spiral unfolding surface (2) and a lower spiral expanding surface (3), wherein the lower spiral unfolding surface (3) is a windward side and includes an upper windward section ( 3.1), the main wind windward section (3.2) and the lower windward section (3.3), the upper windward section (3.1) is set in the upper part of the main wind upwind section (3.2), and the two are straight transitions, the upper windward section (3.1) and An angle A is formed between the main wind upwind section (3.2) and the horizontal plane of the wind impeller, and the angle A is an angle of 20-60 degrees.
The wind wheel structure of claim 1 wherein said angle A is an angle of 40 degrees.
The wind impeller structure according to claim 1, wherein the lower windward section (3.3) has a circular arc shape and is disposed at a lower portion of the main wind upwind section (3.2), a lower windward section (3.3) and a wind impeller. The horizontal plane is tangent to the transition.
The wind impeller structure of claim 1 wherein said vanes are provided with 6-10 pieces.
The wind impeller structure according to claim 4, characterized in that the blades are provided with eight pieces and are annularly distributed around the hub (1), and a reinforcing rib is arranged between each blade and the hub (1) ( 4).
The wind impeller structure according to claim 1, wherein the upper spiral unfolding surface (2) is an inner concave surface, and the lower spiral developing surface (3) is an outer convex ridge surface, an upper spiral unfolding surface (2) and The lower spiral unfolding surface (3) is gradually thinned from the center to the outer edge, and the upper portion of the upper spiral unfolding surface (2) is gradually thinned from the upper end.
The wind impeller structure according to any one of claims 1 to 6, characterized in that the center of the hub (1) is provided with a rubber inlet hole (1.1) and is integrally molded with the blade by injection molding.