Air curtain apparatus for smoke ventilator

Abstract

Disclosed is an air curtain apparatus for a smoke ventilator, comprising blower fans fixed in the housing of the smoke ventilator. A smoke collecting cover is provided on the bottom of the housing. Between the smoke collecting cover and the top board and lateral walls of the housing forms a space for wind to pass through, and the blower fan is located in the space. The air curtain apparatus is characterized in that: along two sides of the smoke collecting cover are arranged air outlets and extend separator plates which are located in the housing and separate the outlets from the blower fans; the separator plates extend from the smoke collecting cover towards the top board, and there are gaps between the tops of the separator plates and the top board, thereby forming air channels between the separator plates and the lateral walls. The installation of the separator plates enables a uniform air curtain with a wide scope of an air-out speed to appear around the smoke collecting cover, thereby preventing oil smoke from going out without extra installation of air curtain pipelines. The air curtain apparatus provided in the invention has a beautiful shape and a simple structure.

Description

Technical field [0001] The invention relates to a range hood, in particular to an air curtain device of the range hood. Background technique [0002] With the improvement of people's living standards, the requirements for the quality of living room environment are getting higher and higher. For Chinese families, the problem of oil fume in the kitchen has always been a major difficulty. Therefore, in the kitchen equipment of Chinese cooking, the performance of the range hood is the most important. [0003] The exhaust rate of the existing range hood is still not very high. Basically, it can only extract more than 50% of the oil fume in the kitchen. In the kitchen cooking, with the movement of people and the circulation of air, a large amount of oil fume is still trapped in the kitchen. diffusion. The main reason is that the operating space is limited. The installation height of the range hood is about 750 mm away from the gas stove. The effective suction distance of a general ran...

AI Technical Summary

Problems solved by technology

However, the air curtain devices of these structures all need to be equipped with an air duct to generate the air curtain, which not only has a complicated structure and high cost, but also is not conducive to the miniaturization design of the range hood, and increases the overall volume of the range hood

Moreover, the air outlets of these air curtain devices are independently distributed on both sides or the front side of the range hood, which may cause problems such as uneven air output from the air outlets, or poor air curtain effect.

If in order to improve the effect of the air curtain, a system composed of multiple sets of fans, air guide pipelines, and air outlet conversion ports is required, resulting in high product costs, complex structures, and control systems.

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