CN101507581A

CN101507581A - Grill with far infrared glass heater

Info

Publication number: CN101507581A
Application number: CNA2008101695515A
Authority: CN
Inventors: 姜炳洙
Original assignee: APRO System Co Ltd
Current assignee: APRO System Co Ltd
Priority date: 2008-02-14
Filing date: 2008-10-08
Publication date: 2009-08-19
Also published as: KR20090088024A

Abstract

The invention provides a grill comprising a far infrared (FIR) glass heater. The FIR grill comprises an FIR glass heater, wherein a heating device and a glass substrate are formed integrally; the heating device is formed on the substrate by screen painting process, and the substrate is heated directly. Therefore, the heat efficiency is very high and the energy consumption is reduced. Compared with inducting-type grills, the FIR grill is not limited to container type.

Description

Grill with far infrared glass heater

Technical field

The present invention relates generally to a kind of FIR grill that comprises far infrared (FIR) glass heater, wherein, heater is formed on the glass substrate by silk-screen printing technique.The present invention will be transferred to food on substrate from the heat that heater sends by heat transmission or LONG WAVE INFRARED radiation (being mainly the FIR radiation).

Background technology

It will be understood by those skilled in the art that and be used to heat the dish that is divided into heater and placement food with the grill of cooking food.For example, have the heat dish and the heat resistant glass of kanthals heater (kanthalheater), another kind of grill then comprises sheathed heater (sheathheater) and aluminium dish.

With the heat dish is example, when heat resistant glass by be positioned at its below the kanthals heater heat, the food on heat resistant glass is heated.This be because, the kanthals heater separates with glass, heat is transferred to glass indirectly from heater.Therefore, the efficient of heat transmission reduces and has improved the wastage of electric power.

Use the grill of sheathed heater, plate is to heat by the heater that is positioned under it.But heater only has contacting of a plurality of points with plate, and therefore, the efficient of heat transmission is very low.

In known grill, a kind of high light type grill and a kind of induction type grill are arranged wherein.The heat efficient of these grills is low, and for example therefore plate being heated to, 350 degrees centigrade high temperature needs a lot of electric power.And, must need magnetized dress food container in the grill of induction type.

Summary of the invention

Therefore, the present invention considers the problems referred to above that occur in the prior art, purpose of the present invention just provides a kind of grill that comprises far infrared (FIR) glass heater, wherein heater forms on glass substrate by silk-screen printing technique, is used for the radiation (mainly being the FIR radiation) by heat transmission or long-wave infrared of heat that heater is radiated out and is transferred to the food that is positioned on the substrate.

To achieve these goals, the invention provides a kind of far infrared grill, comprising: substrate, make by ceramic material, be used for heat energy and far ir ray radiation or be transferred to food; Resistance heating layer is formed on described substrate downside, generates heat by electric energy, is used to heat described substrate; And framework, be used to hold described substrate and described resistance heating layer.

Further, described FIR grill further comprises: thermal insulation board, be positioned at described resistance heating layer below, and be used to prevent that the heat of described resistance heating layer from dissipating downwards; Heat sink, the heat that is used to make described resistance heating layer exist below dissipates; And guiding piece, be attached to described heat sink, thereby support described thermal insulation board.

In some embodiments, thermal insulation board can be attached to described resistance heating layer downside.In addition, heat sink can be supported by the heater frame that replaces guiding piece, and described frame is separated described thermal insulation board with described heat sink.

Resistance heating layer can be formed under the substrate by serigraphy, deposition or the sputtering method that uses in the semiconductor technology.Wherein, described resistance heating layer can be made by one of palladium, copper, carbon, silver (Ag), silver (Ag)-palladium (Pd1202), silver (Ag)-platinum (Pt2145), tin indium oxide (ITO), antimony tin ash (ATO) and CNT (CNT).

In other embodiments, resistance heating layer can comprise: terminal is connected with the power transmission line that alternating current (AC) or direct current (DC) are provided; Form multirow a lot of bar shaped layer; And at least one articulamentum, be used for described a plurality of bar shaped layers and described terminal are connected to each other, to form closed circuit.

Herein, described power transmission line combines with described terminal by brazing.

Description of drawings

Above-mentioned and other purpose, feature and the advantage of the present invention will become by the detailed description below in conjunction with accompanying drawing and be easier to understand, wherein:

Fig. 1 is for showing according to stereogram embodiment of the present invention, that comprise the grill of far infrared glass heater;

Fig. 2 is the sectional view of the shown grill of Fig. 1;

Fig. 3 is the stereogram of the shown grill of exploded view 1;

Fig. 4 is for showing according to the present invention sectional view another embodiment, that comprise the far infrared glass heater;

Fig. 5 is the figure of the resistance heating layer example of the shown grill of demonstration Fig. 1; And

Fig. 6 is for showing the circuit diagram according to the power subsystem of one embodiment of the present invention.

The specific embodiment

Below, of the present inventionly preferred embodiment at length be described with reference to the accompanying drawings.Before being described, be appreciated that, the term that uses in specification and claim should literal not translated and is the meaning that routine and dictionary limit, but according to corresponding theory in the technology of the present invention aspect and meaning, can most suitably define the term principle with best explanation based on the inventor and explain.Therefore, description provided herein only is for showing the preferred example of purpose, do not limit to scope of invention, thereby is appreciated that and is not exceeding being equal to and revising and will describing in detail with reference to the spirit and scope of the invention that attaches of spirit of the present invention, scope.

Fig. 1 is for showing according to stereogram embodiment of the present invention, that comprise the grill of far infrared glass heater.Fig. 2 is the sectional view of the shown grill of Fig. 1.Fig. 3 is the stereogram of the shown grill of exploded view 1.

As shown in Figure 1, a kind of far infrared (FIR) grill 100 comprises glass heater 101, is used for the framework 103 of cover glass heater, and heat sink 105.Framework 103 and heat sink 105 are as the shell of cover glass heater.

Glass heater 101 comprises the smooth substrate 107 that is used for heat food and the resistance heating layer that forms in the side (for example, downside) of substrate 107.Generate heat and heated substrate 107 as the resistance heating layer 109 in the glass heater 101 of heater operation by electric power.The food or the container that are placed on the another side of substrate 107 are heated by the substrate 107 that heats.

Resistance heating layer 109 can form below substrate 107 by the method for printing screen of use in semiconductor technology etc., for example, in method for printing screen, by conducting resinl (for example palladium), with the predetermined pattern printing and be formed on the lower surface of substrate 107 with high temperature coefficient of resistance.

Further, on substrate 107, form resistance heating layer 109 by deposition in semiconductor technology or sputtering method, resistance heating layer 109 can be selected one of following substances and make, and comprises palladium, copper, carbon, silver (Ag), silver (Ag)-palladium (Pd1202), silver (Ag)-platinum (Pt2145), tin indium oxide (ITO), antimony tin ash (ATO) and CNT (CNT).

Substrate 107 can be made up of the pottery of emission FIR ray.Therefore, launch the FIR ray by the substrate 107 of resistance heating layer 109 heating to food.Preferably, substrate 107 is to be made by heat-resisting glass ceramics (crystallizing glass) or anti-superelevation heat glass, and described glass has higher FIR emission characteristics, can bear to be higher than 800 ℃ of high temperature and not break because of variation of temperature.

When a side of substrate 107 formed, resistance heating layer 109 and substrate 107 were united and are one at resistance heating layer 109.Resistance heating layer 109 is very high by using electric energy that temperature is raised to, for example, and 350 ℃, and direct heated substrate 107.Therefore, in FIR grill 100 according to the present invention, owing to directly heat, thereby do not have in the prior art passive heating means or heater separates the thermal losses that is taken place with plate.

In addition, because substrate 107 has good FIR emission characteristics, the FIR ray penetrates food texture dearly, and its result causes the raising of heat transfer efficiency.Further, the heat energy by the FIR ray transmission causes food to boil efficiently and toasts.

Further, resistance heating layer 109 comprises terminal 111,113, and described terminal receives the foreign current that is used to generate heat.Terminal 111,113 is connected with AD or DC power subsystem (not shown).The shape of resistance heating layer 109 will be described below.

For the heat with resistance heating layer 109 is transferred to substrate 107, thermal insulation board 115 is attached to the bottom of glass heater 101 and prevents and dissipated to the below of glass heater 101 by the heat of resistance heating layer 109 generations.Thermal insulation board 115 can be made by ceramic fabric (ceramic wool).

Heat sink 105 is arranged under the thermal insulation board 115, and thermal insulation board 115 is supported by the thermal insulation board guiding piece 117 that is fixed in heat sink 105.

Although thermal insulation board 115 is arranged, radiant heat is present in glass heats 101 belows.Heat sink 105 is used to launch and remove the heat that exists by material manufacturings such as aluminium under glass heater 101.A plurality of holes form on heat sink 105, help more easily radiate heat.

Further, FIR grill 100 comprises handle 121 and support 123.

Support 123 is installed in any one bottom side of heat sink 105 and can folds.When not folding, support 123 can support grill 100 and make it, and the oil in the food can be removed by the outlet that forms on framework 103 at an easy rate.

In the shown above-mentioned FIR grill 100, thermal insulation board 115 contacts with heat sink 105 in Fig. 3.But in other embodiment in Fig. 4, thermal insulation board 115 can separate with heat sink 105.

FIR grill 400 comprises the thermal insulation board guiding piece 117 shown in heating frame 401 rather than Fig. 3 among Fig. 4.Heating frame 401 supports the thermal insulation board 115 that is attached to resistance heating layer 109 bottoms, and thermal insulation board 115 and heat sink 105 are separated.

Further, the grill among Fig. 4 comprises substrate 403, rather than the substrate among Fig. 2 107.The surface and the out-of-flatness of substrate 403 for radiation FIR more effectively and prevent that food is sticking thereon, and are removed oil or the juice that gushes in the food effectively.

Below, will resistance heating layer 109 be described with reference to figure 5.Fig. 5 is for showing the figure according to resistance heating layer 109 patterns of embodiment of the present invention.

Fig. 5 is the example of resistance heating layer 109, and wherein a plurality of bar shaped layers 501 form two rows.Each end of bar shaped layer 501 is electrically connected with at least one contiguous bar shaped layer 501 respectively by articulamentum 503.Thereby a plurality of bar shaped layers 501 form closed circuit with a plurality of articulamentums 503 and are connected with terminal 111,113.

Terminal 111,113 and articulamentum 503 are made by various conductive materials, for example, have the silver (Ag) of satisfactory electrical conductivity.

The power transmission line 505 of power subsystem (not shown) is connected with terminal 111,113 by soft soldering or brazing.By brazing, reduced the contact resistance between power transmission line 505 and the terminal 111,113, and terminal 111,113 does not need through hole to come to be connected with power transmission line 505 by bolt.

FIR grill 100 comprises power subsystem, is used to provide the energy and controls its whole operation.Fig. 6 is for showing the circuit diagram of power subsystem according to the embodiment of the present invention.

Power subsystem receives AC power supplies by AC input terminal 133, switch S 1 and fuse F1, thereby and comes the temperature of controlling resistance zone of heating 109 or substrate 107 by Current Control for resistance heating layer 109 provides electric current.Current Control is carried out based on the value of variable resistor R2 by DIAC D1 and TRIAC Q1.

Therefore, power subsystem does not need the temperature sensor that adds, but power subsystem also can comprise temperature sensor, thereby the temperature of substrate 107 is controlled at fixing temperature.

The FIR grill that preamble is described is the example with plate shape glass heater 101, but glass heater can be for nonplanar.For example, glass heater can be box-like or column glass.Further, thermal insulation board and heat sink can form at the outer surface of glass.Food can be cooked in glass inside.

As described above, according to the present invention, the FIR grill uses electric energy.Therefore, the FIR grill does not use coal gas and the danger of exploding, and also can not generate harmful burning gases from the food of cooking, and can temporarily not corroded.

Especially, because the FIR grill is directly to heat type, wherein resistance heating layer and substrate are one, and its heat efficient is very high, has reduced the consumption of energy.In addition, be different from the induction grill, the FIR grill does not limit to Container Type.

Be penetrated into the tissue of food dearly from the FIR ray of substrate, heat resistant glass emission, therefore improved the efficient of heat energy transmission.And, cause food to boil efficiently and toast by FIR ray transmission heat energy.

Although of the present inventionly preferred embodiment disclose for the purpose of description, but it will be appreciated by those skilled in the art that, without departing from the scope and spirit of the present invention, various improvement, interpolation and replacement all can, scope and spirit of the present invention are open in the claim that accompanies.

Claims

1. far infrared grill comprises:

Substrate is made by ceramic material, is used for heat energy and far ir ray radiation or is transferred to food;

Resistance heating layer is formed on described substrate downside, receives electric energy with radiate heat, is used to heat described substrate; And

Framework is used to hold described substrate and described resistance heating layer.

2. far infrared grill as claimed in claim 1 further comprises:

Thermal insulation board is positioned at described resistance heating layer below, is used to prevent that the heat of described resistance heating layer from dissipating downwards;

Heat sink is positioned at described thermal insulation board below, and the heat that is used to make described resistance heating layer exist below dissipates; And

Guiding piece is attached to described heat sink, thereby supports described thermal insulation board.

3. far infrared grill as claimed in claim 1 further comprises:

Thermal insulation board is attached to described resistance heating layer downside, is used to prevent that the heat of described resistance heating layer from dissipating downwards;

The heater frame is attached to described heat sink, is used to support described thermal insulation board and makes described thermal insulation board separate with described heat sink.

4. as any described far infrared grill in the claim 1 to 3, wherein, described resistance heating layer is forming by serigraphy, the deposition of using in semiconductor processes or injection method under the substrate.

5. far infrared grill as claimed in claim 4, wherein said resistance heating layer is made by one of palladium, copper, carbon, silver (Ag), silver (Ag)-palladium (Pd1202), silver (Ag)-platinum (Pt2145), tin indium oxide (ITO), antimony tin ash (ATO) and CNT (CNT).

6. far infrared grill as claimed in claim 4, wherein, described resistance heating layer comprises:

Terminal is connected with the power transmission line that alternating current (AC) or direct current (DC) are provided;

Form a plurality of bar shaped layers of multirow; And

At least one articulamentum is used for described a plurality of bar shaped layers and described terminal are connected to each other, to form closed circuit.

7. far infrared grill as claimed in claim 6, wherein, described power transmission line combines with described terminal by brazing.

8. as any described far infrared grill in the claim 1 to 3, wherein, described substrate is made by heat resistant glass.