Patent Publication Number: US-2009227198-A1

Title: Smoke and heat exhaust ventilator

Description:
CROSS-REFERENCE TO RELATED U.S. APPLICATIONS 
     Not applicable. 
     STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT 
     Not applicable. 
     NAMES OF PARTIES TO A JOINT RESEARCH AGREEMENT 
     Not applicable. 
     REFERENCE TO AN APPENDIX SUBMITTED ON COMPACT DISC 
     Not applicable. 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates generally to a smoke and heat exhaust ventilator, and more particularly to an innovative ventilator with a pedestal, a diversion cover and a horizontal fan blade. 
     2. Description of Related Art Including Information Disclosed Under 37 CFR 1.97 and 37 CFR 1.98 
     To ensure smooth air ventilation in a stuffy indoor environment, the roofing structure is often provided with a conventional ventilator  10  as shown in  FIG. 1 , where some blades are arranged at intervals around this spherical body to form circular air vents  11 . When circular air vents  11  are rotated directionally, external air could be guided for ventilation and heat exhaust; however, the following shortcomings are observed during actual applications: 
     1. A bigger space shall be required since the conventional ventilator  10  has a spherical shape along with its base at higher location. Thus, a poorer aesthetic effect will be caused when it is mounted externally onto the roof. 
     2. The wind resistance coefficient is relatively increased due to the huge spherical shape of conventional ventilator  10 , this makes it vulnerable to wind interference, e.g. wind gusts, typhoons. Meanwhile numerous unwanted materials (e.g. newspaper, plastic bags, fireworks and kites) are possibly jammed at the circular air vent  11 , leading to a poorer ventilation effect. 
     3. As the circular air vent  11  is composed of circular blades, rainwater may leak through the vent, bringing about indoor water accumulation. 
     Thus, to overcome the aforementioned problems of the prior art, it would be an advancement in the art to provide an improved structure that can significantly improve efficacy. 
     Therefore, the inventor has provided the present invention of practicability after deliberate design and evaluation based on years of experience in the production, development and design of related products. 
     BRIEF SUMMARY OF THE INVENTION 
     The flat structure of the smoke and heat exhaust ventilator of the present invention dramatically reduces the height and space of the smoke and heat exhaust ventilator A, thus cutting down the wind resistance for a lower probability of damage to the smoke and heat exhaust ventilator A. 
     The aesthetic property of the smoke and heat exhaust ventilator of the present invention is an improvement due to smaller height and space after assembly onto the roof. 
     The lateral air inlet/outlet blocks water infiltration and prevents leakage. 
     The curved baffle plate is arranged within the lateral air inlet/outlet of the diversion cover so that a water-retaining effect is enhanced. 
     A solar panel  50  is mounted onto the pedestal  20  and diversion cover  30 . The smoke and heat exhaust ventilator A can absorb solar energy for environmental-friendly power generation. 
     Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
         FIG. 1  shows a schematic view of a conventional ventilator. 
         FIG. 2  shows a perspective view of the preferred embodiment of the smoke and heat exhaust ventilator of the present invention. 
         FIG. 3  shows a cross-sectional view of the preferred embodiment of the smoke and heat exhaust ventilator of the present invention. 
         FIG. 4  shows a schematic view of the assembly of the smoke and heat exhaust ventilator of the present invention. 
         FIG. 5  shows another schematic view of the assembly of the smoke and heat exhaust ventilator of the present invention. 
         FIG. 6  shows still another schematic view of the assembly of the smoke and heat exhaust ventilator of the present invention. 
         FIG. 7  shows a schematic view of the assembly of the smoke and heat exhaust ventilator of the present invention. 
         FIG. 8  shows a perspective view of an application of the smoke and heat exhaust ventilator of the present invention which is provided with a solar panel. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     The features and the advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings. 
       FIGS. 2-3  depict preferred embodiments of the smoke and heat exhaust ventilator of the present invention. These embodiments are provided only for explanatory purposes with respect to the patent claims. 
     The smoke and heat exhaust ventilator A comprises a pedestal  20 , defining an assembly portion  21  and an external surface  22 . An air vent  23  is reserved at a preset location of the external surface  22 . 
     A diversion cover  30  is assembled onto the external surface  22  of the pedestal  20 . The hollow diversion cover  30  forms an accommodating space  31  with an inner end. The inner end is connected to air vent  23  of the pedestal  20 . The diversion cover  30  is provided with a lateral air inlet/outlet  32  connected to the accommodating space  31 . 
     A horizontal fan blade  40  is mounted into the accommodating space  31  of the diversion cover  30 . The horizontal fan blade  40  comprises a rotating shaft  41  and a few blades  42  radially arranged onto the rotating shaft  41 . The blades of the preferred embodiment are arranged radially through the rotating shaft  41 . The external side of the horizontal fan blade  40  aligns with the lateral air inlet/outlet  32  of the diversion cover  30 , while the inner end of horizontal fan blade  40  aligns with the air vent  23  of the pedestal  20 . 
     The pedestal  20  is a plate, and an oblique surface  24  is formed in peripheral. 
     A curved baffle plate  33  is placed within lateral air inlet/outlet  32  of the diversion cover  30  with a predefined depth. The curved baffle plate  33  is formed when the external surface  22  of the pedestal  20  protrudes until the external surface  22  exceeds the center of rotating shaft  41  of the horizontal fan blade  40 . 
     The diversion cover  30  is provided with an oblique flange  34  opposite to the lateral air inlet/outlet  32 , thereby serving the purpose of guiding air flow. 
     Based on above-specified structures, the present invention is operated as follows: 
     Referring to  FIG. 3 , external wind could be guided from lateral air inlet/outlet  32  into the inner space via horizontal fan blade  40 . Conversely, indoor air could be guided outside of the lateral air inlet/outlet  32  via the horizontal fan blade  40 . 
     The assembly of the present invention is illustrated below: 
     Referring to  FIG. 4 , the smoke and heat exhaust ventilator A is assembled onto the surface  60  of the roof for ventilation and heat exhaust. 
     Referring to  FIG. 5 , the smoke and heat exhaust ventilator A can also be assembled onto the ridge  61  of the roof for ventilation and heat exhaust. 
     Referring to  FIG. 6 , the smoke and heat exhaust ventilator A can also be assembled between the edge  62  of eave and the wall  63  for ventilation and heat exhaust. 
     Referring to  FIG. 7 , the smoke and heat exhaust ventilator A can also be assembled onto a preset location of the vertical wall  64  of the building. 
     Referring to  FIG. 8 , a solar panel  50  is mounted onto the pedestal  20  and diversion cover  30 , so that solar energy can be absorbed for auxiliary power generation.