JPS61282743A - Exhaust hood difficult to be stained - Google Patents

Abstract

PURPOSE:To prevent the inner surface of the hood and a ventilation fan from being stained by constructing the hood in a dual manner of an outer side and an inner side, and causing the flow of air generated by the ventilation fan mounted on the outside of the hood to flow between the outside hood and the inside hood. CONSTITUTION:Materials of low costs are used for an inner duct. The inner duct is of a type in which thin materials are assembled so that it does not become bulky. Therefore, it has usually spare ones so that it can be used only once and then thrown away in case it is stained. The exhaust hood is provided with a ventilation fan 1, an outside hood 2, an inside hood 3, an air guide 4 and an exhaust port E. When oil, etc. are used in the kitchen, the inside of the room is stained with soots, and the exhaust food itself is stained, though it is an article necessary for living, and it requires labor when it is cleaned. Since the exhaust hood exhausts stained air in such a manner that it is wrapped by air from the ventilation fan, stains attached to the inner hood 3 are small in amount, and when the inner hood 3 is stained, it can be removed and thrown away, and hence there is no need to clean it. Since the ventilation fan 1 can exhaust even stained air in the vicinity of the ceiling and is attached to the outside, it is easily cleaned and the ventilation fan is difficult to be stained.

Description

[Detailed description of the invention] (a) Industrial application field This invention reduces the dirt on the inside of the exhaust hood and the ventilation fan used in kitchens, eliminates the trouble of cleaning, and It is something that lasts a long time.

(b) Conventional technology The conventional exhaust hood had a ventilation fan at the hood outlet to directly exhaust dirty air.

(c) While the invention was trying to solve the problem, the hood and the replacement part were both dirty and dry, and the inside of the hood could not be prevented from getting dirty, and the ventilation fan was also located in a position that was difficult to clean.

(d) Measures to solve the problem: The hood is double-walled on the outside and inside, and the air flow generated by the ventilation fan attached to the outside of the hood is passed between the outside hood and the inside hood. Using an air guide, etc. at the inlet of the hood, change the direction of the flow and blow out from 8 locations inside the inner hood.

The inner duct is made of inexpensive materials and is a combination of thin materials to avoid bulk.1. Have a spare so you can reuse it if it gets worn out.

1 is a ventilation fan, 2 is an outer hood, 3 is an inner hood, 4 is an air guide, and E is an exhaust port.

(E) Function: The high-speed air flow blown out from various parts of the inner hood allows dirty air to be sucked in and discharged from the exhaust port.

(F) Embodiment Figure 1 shows the case of a thin type with the ventilation fan on the upper side, which can also exhaust dirty air near the ceiling.

Figure 2 shows the case where it is installed in a high position (near the ceiling).
The ventilation fan is on the side.

(g) Effects of the invention When using oil in the kitchen, the room gets dirty due to oil smoke, and an exhaust hood is a necessity, but the fjF air hood itself also gets dirty and takes time to clean, but the new air hood removes dirty air. Since the exhaust is wrapped in air from the ventilation fan, there is little chance of the inner hood getting damaged, and if the inner hood does break, it can be removed and disposed of, so there is no need to clean it.

The ventilation fan also brings out the dirty air near the ceiling, and since it is attached to the outside, it is easy to clean, and the ventilation fan itself is difficult to get dirty.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the thin case, and Figure 2 is a sectional view of the case where the ventilation fan is on the side.

Claims (1)

[Claims] Air flow created by a ventilation fan etc. is blown out from various places inside the exhaust hood towards the exhaust outlet, and the high-speed air flow sucks up dirty air and discharges it from the exhaust outlet, preventing dirt on the inside of the hood and the ventilation fan. Exhaust hood with a structure that reduces dirt.