Near-suction type range hood

Abstract

The invention discloses a near-suction type range hood. The near-suction type range hood comprises a shell and a fan system, wherein the shell comprises a panel which is located at the front end and is inclined relative to the horizontal direction, an opening is formed in the panel to form an air inlet of the range hood, the near-suction type range hood is characterized in that the fan system comprises a first three-dimensional fan and a second three-dimensional fan which are arranged in series, a smoke guide plate is arranged on the front side of the panel, a gap between the smoke guide plateand the panel forms an air inlet channel, and the air inlet channel communicates with the shell through the opening. When the range hood does not work, by closing the smoke guide plate, a relativelysmeary filter screen and the fan system can be hidden, so that the range hood is kept clean and tidy; and when the range hood works, by opening the smoke guide plate, air at the periphery of the shellcan be guided, airflow passing through an outer flow adjusting layer can be effectively segmented, adjusted and guided, then turbulent flow and disorderly flow in the airflow are reduced, the smoothairflow is formed, namely, the smoke collecting area of the shell is increased equivalently, and the smoke exhausting effect of the range hood can be well improved.

Description

technical field [0001] The invention relates to kitchen appliances, in particular to a near-suction range hood. Background technique [0002] Range hoods have become one of the indispensable kitchen appliances in modern families. Generally, range hoods include top-suction and near-suction range hoods. Near-suction range hoods use vortex wind pressure to move away, and absorb most of the fumes that are close to the stove in an arc, which can reduce adverse effects on human health. Influence, and the power source is closer to the stove, basically it will not reduce the suction effect of the power source. [0003] For example, a side suction range hood disclosed in Chinese Patent Application No. 201110338726.2 includes: an outer panel with a first middle opening; a middle panel arranged at the first middle opening of the outer panel, and the gap between the outer panel A smoke inlet is formed; the smoke collection chamber is located on the inner side of the outer panel and co...

AI Technical Summary

Problems solved by technology

[0004] In the prior art solution as mentioned above, the middle panel is fixed, and there is a gap between the middle panel and the outer panel for smoke inhalation. The gap has been determined during the original design and manufacture, so the gap is permanently open. , so that the smoke collection hood and the flue are straight through, the smoke baffle cannot effectively block the odor of other users in the flue of the whole building, which will bring great inconvenience to users and environmental pollution; the fan system usually adopts multi-blade centrifugal fan, and the multi-blade centrifugal fan is placed in the lower triangle. In order to ensure a high air intake efficiency, the fan system is relatively large

Moreover, this arrangement of the fan, because the impeller has a pre-rotation effect on the gas and the direction of the gas will gradually change during the 90° turning process of the gas flowing into the impeller, the purely consistent inlet and outlet angles are not good for the actual working ability of the impeller. ;In addition, the fan is far away from the air outlet pipe, it is difficult to overcome the resistance of the pipe, the fan faces the user directly, lacks noise reduction measures, and the noise is high

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