Split impeller
An impeller and split technology, applied in liquid fuel engines, components of pumping devices for elastic fluids, non-variable pumps, etc., can solve problems such as difficult mold release, high noise, and impellers that cannot completely eliminate resonance , to achieve the effect of reducing the difficulty of mold release and eliminating blade resonance
Inactive Publication Date: 2017-04-26
东莞市卓奇电子科技有限公司
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Problems solved by technology
When making this kind of impeller, all the blades must be injection-molded on the inner shroud at the same time, and it is not easy to release the mold. In order to reduce noise, the number of blades must be set to an odd number, which increases the difficulty of blade design, and because all blades are located in Injection molding in the mold, so in the design, in order to avoid failure to release the mold, the gap between the blades is limited, the impeller made cannot completely eliminate resonance, and the noise is large
Method used
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[0019] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0020] refer to Figure 1 to Figure 4 , the present invention discloses a split impeller 100, comprising an outer shroud 10 and an inner shroud 20, the inner wall 11 of the outer shroud 10 is provided with a plurality of first blades 31 at a certain interval, the inner shroud 10 Several second blades 32 are arranged at certain intervals on the outer wall 21 of the wind deflector 20, and the inner wind deflector 20 and the outer wind deflector 10 are installed in cooperation so that the first blades 31 and the second blades 32 are arranged at a certain interval. The pitches are staggered to form the guide air duct 30 .
[0021] Among them, refer to figure 1 and figure 2 , the outer shroud 10 and the first blade 31 are integrally formed ...
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The invention discloses a split impeller. The split impeller comprises an outer fairing and an inner fairing, wherein a plurality of first blades are arranged on the inner wall of the outer fairing; a plurality of second blades are arranged on the outer wall of the inner fairing; and the inner fairing and the outer fairing are arranged in a matching manner, so that the first blades and the second blades are distributed at a certain space in a staggered manner to form a diversion air channel. Compared with the prior art, the split impeller disclosed by the invention has the advantages that the blades of the impeller are divided into two parts, namely the first blades and the second blades; and the first blades are arranged on the outer fairing, and the second blades are arranged on the inner fairing, so that the demolding difficulty of the impeller during injection molding is reduced, and subtle distinction between the two parts of blades can be set for eliminating blade resonance.
Description
technical field [0001] The invention relates to an impeller, in particular to an impeller which can be manufactured by splitting the mold, and is convenient to take out the mold. Background technique [0002] Nowadays, fans, especially bladeless fans, generally use impellers to compress air to generate wind power. Referring to Chinese patent CN201320169552.6, it discloses an impeller of a bladeless fan, which includes an outer shroud and an inner shroud. Several blades are formed on the outer wall of the inner shroud, and the outer shroud covers the inner guide. On the flow cover, and paste and fix the blades on the inner wall of the outer guide wall. When making this kind of impeller, all the blades must be injection-molded on the inner shroud at the same time, and it is not easy to release the mold. In order to reduce noise, the number of blades must be set to an odd number, which increases the difficulty of blade design, and because all blades are located in Injection m...
Claims
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IPC IPC(8): F04D29/30F04D29/66
CPCF04D29/281F04D29/30F04D29/325F04D29/327F04D29/329F04D29/34F04D29/384F04D29/388F04D29/441F04D29/541F04D29/646F04D29/666Y02T10/12Y02E10/72
Inventor 谢奇峰
Owner 东莞市卓奇电子科技有限公司