Low-noise fan and range hood
A low-noise, fan technology, applied in the field of low-noise fans and range hoods, can solve the problems of fan noise pollution and poor noise reduction effect, and achieve the effect of reducing noise pollution and improving usability
Pending Publication Date: 2019-01-18
HANGZHOU ROBAM APPLIANCES CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to provide a low-noise fan and range hood to solve the technical problem that the noise reduction measures in the prior art have poor noise reduction effects, resulting in serious noise pollution when the fan is running.
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[0026] 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.
[0027] 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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The invention provides a low-noise fan and a range hood and relates to the technical field of purifying equipment. The low-noise fan comprises a volute, wherein the volute is provided with an air inlet and an air outlet which are communicated with each other; a blocking part is arranged on the volute and shields part of the air inlet; in addition, the shielding area corresponds to the position ofa volute tongue on the volute; the range hood comprises a casing and the low-noise fan; the casing is provided with a lampblack suction inlet and a lampblack exhaust outlet; the low-noise fan is fixedly arranged inside the casing; in addition, an air inlet of the low-noise fan is communicated with the lampblack suction inlet; an air outlet of the low-noise fan is communicated with the lampblack exhaust outlet; the casing at the edge of the lampblack suction inlet of the range hood also can be used as the blocking part to shield part of the air inlet; besides, the shielding area corresponds tothe position of the volute tongue on the volute. The low-noise fan has smaller noise pollution in the operation process.
Description
technical field [0001] The invention relates to the technical field of purification equipment, in particular to a low-noise fan and range hood. Background technique [0002] The production process of traditional Chinese food culture includes frying, frying, deep-frying, roasting, etc. During the process of making food, a lot of oil fume is produced, and the oil fume not only seriously pollutes the kitchen environment, but also the kitchen operators stay in the oil fume environment for a long time. The harm is relatively large, serious, and even cancer. Therefore, the range hood is widely used in the kitchen. The range hood is an electrical appliance such as the cooking fume that is produced in the home kitchen. [0003] The operation of range hoods will generate noise pollution, and the fan is the main source of noise. When the fan is working, the separation of the high-speed airflow on the impeller and the impact on the volute become the main causes of noise. The user is af...
Claims
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IPC IPC(8): F24C15/20
CPCF24C15/20
Inventor 任富佳于巍巍陈卫星韦磊刘毅周海昕班永
Owner HANGZHOU ROBAM APPLIANCES CO LTD