Draught fan impeller assembly and extractor hood
A technology for fan impeller and range hood, which is applied in the direction of removing oil fume, machine/engine, mechanical equipment, etc., can solve the problems affecting the working efficiency of impeller and range hood, and achieve the effect of improving wind pressure, improving efficiency and improving quality.
Pending Publication Date: 2018-05-29
HANGZHOU ROBAM APPLIANCES CO LTD
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- Claims
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Problems solved by technology
[0006] The purpose of the present invention is to provide a fan impeller assembly and a range hood to alleviate the problem in the prior art that a "dead zone" of gas flow easily occurs between the center of the impeller and the blades, thereby affecting the working efficiency of the impeller and the range hood
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[0042] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0043] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...
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Abstract
The invention provides a draught fan impeller assembly and an extractor hood, and relates to the technical field of kitchen appliances. The draught fan impeller assembly comprises an impeller body anda pre-rotating blade carrier. The pre-rotating blade carrier is arranged in the impeller body, and comprises an outer mounting structure, an inner mounting structure and a plurality of spokes. The outer mounting structure is connected with the impeller body. The inner mounting structure is connected with a draught fan driving mechanism. The spokes are of blade structures in the shape of spatial curved surfaces, and are connected between the outer mounting structure and the inner mounting structure. During rotating, the pre-rotating blade carrier is matched with the impeller body to suck or exhaust smoke. The extractor hood comprises the draught fan impeller assembly. By the draught fan impeller assembly and the extractor hood, the problem that gas flow 'dead zones' are easily generated between impeller centers and blades to influence working efficiency of impellers and extractor hoods in the prior art is relieved.
Description
technical field [0001] The invention relates to the technical field of kitchen appliances, in particular to a fan impeller assembly and a range hood. Background technique [0002] The fan system of the household range hood is the core component of the range hood, and its performance directly affects the smoking effect of the range hood; at present, the working part of the fan system is the impeller, and the leaf frame used is flat or deep-drawn etc., the leaf frame is used to fix the impeller, and the leaf frame is connected with the output shaft of the motor. [0003] However, since the blade rack in the above manner is connected between the impeller and the motor, when the gas enters the interior of the impeller and flows, a gas flow "dead zone" is likely to appear between the center of the impeller and the blades, thereby affecting the flow of air through the impeller. The process that affects the smoking efficiency of the impeller further affects the quality of the enti...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F04D29/32F04D29/38F24C15/20
CPCF04D29/325F04D29/386F04D29/388F24C15/20
Inventor 任富佳郁明跃陈志涛卢列存
Owner HANGZHOU ROBAM APPLIANCES CO LTD