Patent Application
20120024166
The present invention generally relates to a two-side heating-enhanced smoke-free roaster, which provides a novel structure of roaster that realizes advantages of increased surface area for heat transfer and heat accumulation on opposite side portions of a roaster body for increasing roasting temperature on the two sides of a roasting grating, formation of solid plates between adjacent grating bars at end portions of the sides of the roaster body to conduct grease droppings formed by roasting foodstuffs away from a heating structure to move toward a grease collection tray in order to eliminate incomplete burning, and configuration of pluggable modularized reflector assemblies allowing safe removal and replacement of carbon fiber heating tubes.
With fire being found to roast foods, the roasters become an essential utensil for human beings. Any place that provides a roaster is a place where accommodation can be made and hot food is likely to be available by searching and processing foods.
The development of human society makes people no longer satisfied with the simple ways of roasting by building up a fire under a grating, for the temperature above the grating is often not uniform due to the random distribution of burning charcoals under the grating. Further, the opening area formed in the grating is identical through the whole grating. This makes the temperature on the sides of the grating lower than that at the center of the grating, so that foodstuffs placed on the sides of the grating are hard to get sufficiently cooked and smokes may be caused due to incomplete burning, leading pollution to the atmosphere and hurting to aspiration system of human body. Particularly, grease or juice dropping from a roasted foodstuff to the burning charcoal makes instantaneous local drop of temperature of the charcoal, leading to the generation of a great amount of black smokes and excessive incomplete burning that generates toxicant gas. Further, the foodstuff in roasting may get stained by the charcoal ash, which is no hygiene and may affect the human health.
Further, the conventional roasters are not provided with any means for re-directing thermal radiation, so that any attempt to provide sufficient roasting temperature to all areas of a grating of a roaster often leads to excessive high temperature around the whole roaster, thereby producing smokes from the grease at all possible locations inside the roaster, and therefore leading to a problem of environmental protection.
In view of the above problems, the present invention aims to provide a smoke-free roaster that overcomes these problems.
Thus, the present invention aims to provide a smoke-free roaster, which comprises a roaster body having a bottom to which a grease collection tray is mounted, a roasting grating mounted on a top of the roaster body, and a heating structure mounted inside the roaster body, wherein the roasting grating comprises grating bars, between which solid sloping plates are formed and gently inclined downward from front and rear side edges in a direction along the grating bars toward a central portion of the roaster body and the heating structure comprises reflector assemblies, which comprises heating modules respectively mounted below the sloping plates and respectively receive therein carbon fiber heating tubes that irradiate and thus heat the roasting grating and comprise electrical terminals forming power supply connection modules. As such, the sloping plates increase the surface area on the two opposite sides of the roaster body for heat transfer and heat accumulation thereby raising roasting temperature on the two side portions of the roasting grating. This is the primary objective of the present invention.
Further, the two-side heating-enhanced smoke-free roaster according to the present invention uses the sloping plates to conduct the grease droppings that are formed on the two side portions by roasting of foodstuffs away from the heating structure to move toward the grease collection tray so as to protect the carbon fiber heating tubes from being stained by the grease droppings that leads to incomplete burning and also to generate no ash of burning and formation of charcoal, thereby realizing smoke-free roasting, protection of environment, and being good for the health of user. This is another objective of the present invention.
Further, the two-side heating-enhanced smoke-free roaster according to the present invention provides a reflection hood at the rear side of the reflector casing of each of the reflector assemblies to be opposite to the side where the carbon fiber heating tube irradiates the roasting grating for reflecting radiation from the carbon fiber heating tube, whereby the heat generated by the carbon fiber heating tube can be concentrated on the roasting grating to provide the roasting grating with sufficient temperature for roasting and protect the roaster body from excessively high temperature so that greasy liquid formed in roasting foodstuffs that is guided by the sloping plates toward the grease collection tray is not subjected to excessively high temperature to generate smokes and thus roasting that meets the needs of environmental protection is realized. This is a further objective of the present invention.
Further, the two-side heating-enhanced smoke-free roaster according to the present invention uses pluggable modularized reflector assemblies to avoid unnecessary contact with heating tubes that are of high temperature during a replacement operation, which may lead to burning of the operator, whereby safe removal of carbon fiber heating tubes can be realized. This is yet a further objective of the present invention.
The foregoing objectives and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
The structure of the roasting grating 30 is shown in
Further, as shown in
It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.
