A fan with good air diffusion effect
A technology of airflow diffusion and fan, applied in the field of ventilation, can solve the problems of affecting the uniformity of airflow diffusion, the influence of airflow on the outflow speed, and reducing the range of airflow diffusion, so as to ensure the uniformity of airflow diffusion, balance the air volume, and increase the range of airflow diffusion Effect
Active Publication Date: 2022-05-24
ZHEJIANG YOUBANG INTEGRATED CEILING
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Problems solved by technology
When in use, the rotating fan draws outside air through the air inlet channel and discharges it through the air outlet channel. Since the top wall of the air outlet channel includes a plurality of rectangular guide surfaces, the connecting lines between adjacent guide surfaces are parallel to each other. Setting, the top airflow on the top layer of the air outlet flows down after contacting the corresponding guide surface and turns, and meets and mixes with the bottom airflow on the bottom layer of the air outlet flowing along the axis of the air outlet channel, which will cause the top airflow and the bottom airflow to collide with each other The turbulent flow will cause the airflow to affect the outflow speed due to the loss of kinetic energy, thereby reducing the range of airflow diffusion and affecting the user experience. It will also cause uneven airflow in each area of the air outlet, affecting the uniformity of airflow diffusion.
Method used
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[0024] The substantive features of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0025] like figure 1 and 2 The shown fan with good airflow diffusion effect is composed of a casing 1 with a volute 2 and an air outlet channel 3 and an air inlet passage 4 arranged in the casing 1. The volute 2 is provided with a fan. 5, the middle part of the volute 2 extracts the outside air through the air inlet channel 4 and discharges it through the air outlet channel 3 under the driving of the fan 5, and the front end of the air outlet channel 3 is provided with an air inlet that is communicated with the volute 2, The bottom is provided with an air outlet that communicates with the outside space, the axis of the air outlet channel 3 is arranged along the tangential direction of the periphery of the volute 2, and the top surface of the air outlet channel 3 is provided with a multi-level guide plate 6. The multi...
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The invention relates to a fan with good air diffusion effect. The existing fan has the problem of uneven airflow diffusion. The invention comprises a casing, a volute, an air outlet channel and an air inlet channel. A fan is arranged inside the volute, an air inlet is provided at the front end of the air outlet channel, an air outlet is provided at the bottom, and the axis of the air outlet channel is along the tangential direction of the periphery of the volute. The top surface of the air outlet channel is provided with a multi-level guide plate, and the front-end guide surface of the multi-level guide plate is formed by bending near the front corner of the fan. The inner airflow close to the fan collides with the front-end guide surface, turns and then discharges downward through the air outlet, and avoids the outer airflow that flows through the air outlet and is away from the fan. The front end of the multi-stage guide plate is provided with a front guide surface facing the corner of the fan, which can not only avoid misalignment with the outer airflow along the outside of the air outlet, effectively increase the airflow diffusion range, but also ensure the uniformity of the airflow diffusion and improve the user experience.
Description
technical field [0001] The invention relates to the field of ventilation, in particular to a fan. Background technique [0002] The existing fan includes a casing with a volute inside, and an air outlet channel and an air inlet channel arranged in the casing, the volute is provided with a fan, and the middle of the volute extracts the outside air through the air inlet channel and drives the fan. The bottom is discharged through an air outlet channel, the front end of the air outlet channel is provided with an air inlet communicating with the volute, and the bottom is provided with an air outlet communicating with the external space. When in use, the rotating fan draws outside air through the air inlet channel and discharges it through the air outlet channel. Since the top wall of the air outlet channel includes a plurality of rectangular guide surfaces, the connecting lines between adjacent guide surfaces are parallel to each other. Set, the top air flow located on the top ...
Claims
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IPC IPC(8): F04D29/42F04D29/44F04D29/66
CPCF04D29/4233F04D29/4226F04D29/441F04D29/667
Inventor时沈祥林圣全丁云斌陈玉龙
OwnerZHEJIANG YOUBANG INTEGRATED CEILING