CN1964584A

CN1964584A - A microwave heating device

Info

Publication number: CN1964584A
Application number: CN 200510096320
Authority: CN
Inventors: 刘秋雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-09
Filing date: 2005-11-09
Publication date: 2007-05-16

Abstract

In a microwave heater, the heating layer, which is made of wave-absorption material, adhesive agent and inorganic fiber with weight rate as 100:5-50:0.5-5, receives microwave radiation and transfers received energy into heat fast; the adhesive layer conducts energy to a heat acceptor to heat other objects (water, meat, fish, and vegetable, etc). Wherein, the top cove of heater is hollow heat-proof composite plate for heat preservation and screening microwave.

Description

A kind of microwave heating device

Technical field

Present technique relates to the use microwave, and (300MHz---300GHz) irradiation microwave absorbing material is finished the process that microwave energy is converted into heat energy, is made into the field of various heaters as thermal source with microwave absorbing material.

Background technology

The thermal source of heat medium roughly has following several at present: coal, resistance wire, infrared ray, combustion gas, fuel oil, microwave, electromagnetic induction etc.Heating principle is divided into two kinds, and first kind is to heat the top layer earlier, gos deep into internal layer, resistance wire, combustion gas, electromagnetic induction etc. again and belongs to this kind mode, and second kind is to heat internal layer earlier, is carrying out the transition to the top layer gradually.Microwave heating belongs to the second way.First kind of mode efficiency of heating surface is lower, and coal-fired, fuel Heating mode also exists contaminated environment to produce the problem of pernicious gas in combustion process, and especially pollution that caused by coal burning is even more serious.China large-and-medium size cities have banned use of coal fired boiler now.The electromagnetic induction heating mode belongs to clean energy resource, now be widely used in electromagnetic oven, but because the electromagnetic oven heating rate is lower, be difficult to satisfy Chinese popular life custom, the function of frying in shallow oil, fry, exploding is difficult to realize, microwave heating has efficiency of heating surface height, heating rate height, advantages such as environmentally safe, but because microwave heating is direct heating, microwave oven is one " hot meal stove " in Chinese family, can not realize the function of steaming, boil, fry, frying in shallow oil to replace traditional combustion gas, fuel kitchen range fully.

Summary of the invention

Purpose of the present invention is exactly to propose a kind ofly to make full use of the fast characteristics of heat efficiency height, programming rate that heating objects with microwaves has, utilize microwave irradiation to have the absorption microwave function, the microwave energy that absorbs is converted into the microwave heater of heat energy, as the thermal source of heater.The direct heated food of the heat that microwave heater is sent.

The inventive point of present technique is: the heating layer 3 of (1) heater is made up of absorbing material and inorganic adhesive, inorfil etc.The part by weight scope of absorbing material and inorganic adhesive is 100: 5-50, the part by weight scope of absorbing material and inorfil is 100: 0.5-5.(2) heater upper cover 4 is hollow heat-resisting composite plate, has insulation, the shield microwaves double action.

Microwave heating device operation principle: with reference to Fig. 1, after the heating layer 3 of heater is accepted microwave radiation, can rapidly microwave energy be converted into heat energy, heat energy is given heated body 1 by adhesive linkage 2 conduction, again by heated body 1 heating other article 16 (as water, meat, fish, vegetables etc.).Loam cake 4 can effectively stop the irradiation of microwave to heating object 16, prevents food-dewatering, thereby realizes utilizing the purpose of microwave indirect food.

Microwave heating device is made up of heated body 1, adhesive linkage 2, heating layer 3, loam cake 4, heat-insulation layer 5, high-temperature resistant coating 6.Heated body 1 is made of the metal or metal alloy material, as aluminum or aluminum alloy, copper or copper alloy, iron or ferroalloy.The main effect of heated body 1 be exactly receive heating layer 3 by the heat of adhesive linkage 2 conduction the utensil as other food of heating.Adhesive linkage 2 by high-temperature resistance adhesive and heat conductivility preferably filler form.Adhesive is selected silicon rubber bonder, inorganic glue bonding agent for use, and filler selects for use aluminium oxide, magnesium oxide, graphite powder, carbon black, metal dust etc. all can.Adhesive linkage 2 plays heated body 1 and heating layer 3 is bonded together, and the effect of giving heated body 1 with the thermal energy transfer that heating layer 3 produces.

Heating layer 3 main effects are exactly the microwave of accepting the microwave source emission, and finish the process that microwave energy is converted to heat energy, are the pyrotoxins of heating appliances.Heating layer 3 manufacture crafts are as follows: weighing 100 restrains absorbing materials (absorbing material is meant zinc oxide, graphite, acetylene carbon black, ferrite, carborundum etc.), 5-50g inorganic adhesive (inorganic adhesive is meant silicate, phosphate, cupric oxide class adhesive), 4g heatproof inorfil (inorfil is meant asbestos, aluminosilicate cotton, carbon fiber, ceramic fibre) respectively.Earlier inorganic adhesive and absorbing material are stirred, high-temperature fibre is added at last again, fiber can be dispersed in the mixture of absorbing material and bonding agent uniformly, end product is a paste.

Above-mentioned paste is put into the template of customization, can become different shape, as tabular, hemisphere shape etc.The template of filling paste is put into drying box, and the drying box temperature is set at 60-80 ℃, and the paste contained humidity is dried.The slow more later on dry the temperature inside the box that rises of paste drying makes the paste crosslinking curing, and curing temperature is: 150-250 ℃, and time 2-4 hour.

Loam cake 4 main effects are: prevent the heating object in the microwave irradiation heated body 1, insulation effect is played in the space between heated body 1 and the loam cake 4.Loam cake 4 is selected the material high temperature resistant, that conductive coefficient is lower for use, as silicon rubber, polytetrafluoroethylene, cardboard, polyester, asbestos etc.With reference to Fig. 2, Fig. 3, loam cake 4 is a hollow-core construction, last aspect 7 is a sealing surface with subsurface 8, between last aspect 7 and the subsurface 8 articulamentum 9 is arranged, articulamentum 9 main effects are exactly to keep going up between aspect 7 and the subsurface 8 certain space is arranged, to play the heat that keeps space between loam cake 4 and the heated body 1.In the outside of last aspect 7 metal level 10 is arranged, metal level plays the effect of microwave reflection.Metal level can adopt the process of plating or binding metal film.

Heat-insulation layer 5 main effects are to prevent or reduce that the heat that heating layer 3 produces dispels the heat to air.Heat-insulation layer 5 is selected resistant to elevated temperatures insulation material for use, as asbestos, aluminium silicate wool, thermal insulation coatings, seat clay, refractory cement etc.

High-temperature resistant coating 6 main effects are: beautify outward appearance, strengthen the water resistance and the intensity of heat-insulation layer 5.

Figure number explanation: 1 heated body; 2 adhesive linkages; 3 heating layers; 4 loam cakes; 5 heat-insulation layers;

6 high-temperature resistant coatings; Aspect on 7; 8 subsurfaces; 9 articulamentums; 10 metal levels; 11 microwave generators; 12 rotating disks; 13 microwave heating devices; 14 supports; 15 microwave ovens; 16 food; 17 microwave shield.

Description of drawings: Fig. 1 is a kind of microwave heating device principle assumption diagram

Fig. 2 is loam cake 4 structure principle charts

Fig. 3 is loam cake 4 structure principle charts

Fig. 4 is the application principle figure of microwave heating device in the family expenses microwave oven

Fig. 5 is the microwave wok schematic diagram of manufacturing with microwave heating device

Specific implementation method:

Embodiment 1: as shown in Figure 4, microwave heating device is put into microwave oven 15, the microwave by microwave generator 11 produces is absorbed by the heating layer 3 of microwave heating device 13, finishes the process that microwave energy is converted to heat energy by heating layer 3.The heat that heating layer 3 produces conducts in heated body 1 by adhesive linkage 2, directly heats the interior food 16 of heated body 1 by heated body 1, thereby reaches the purpose of heated food.

Embodiment 2: as shown in Figure 5, in the bottom of microwave heating device 13 microwave generator 11 is arranged, the microwave that microwave generator 11 produces is absorbed by the heating layer 3 of microwave heating device 13, finishes the process that microwave energy is converted to heat energy by heating layer 3.The heat that heating layer 3 produces conducts in heated body 1 by adhesive linkage 2, directly heats the interior food 16 of heated body 1 by heated body 1, thereby reaches the purpose of heated food.

Claims

1. microwave heating device 13 is made of heated body 1, adhesive linkage 2, heating layer 3, loam cake 4, heat-insulation layer 5, high-temperature resistant coating 6.

2. according to the 1st described formation of claims, it is characterized in that: be connected by adhesive linkage 2 between heated body 1 and the heating layer 3, adhesive linkage 2 can be resistant to elevated temperatures organic adhesion agent, also can make silicate, phosphate, cupric oxide bonding agent.

3. according to the 1st described formation of claims, it is characterized in that: heating layer 3 is made of microwave absorbing material and inorganic adhesive, inorfil mixing, the part by weight that microwave absorbing material mixes with inorganic adhesive is: 100: 5-50, the part by weight scope of microwave absorbing material and inorfil is 100: 0.5-5.

4. according to the 1st described formation of claims, it is characterized in that: loam cake 4 is hollow-core construction, between last aspect 7 and subsurface 8, articulamentum 9 is arranged, in the outside of last aspect 7 metal level 10 is arranged, last aspect 7, subsurface 8, articulamentum 9 can be silicon rubber, polytetrafluoroethylene, cardboard, polyester, also can be asbestos, aluminium silicate wool, seat clay, refractory cement.

5. according to the 1st described formation of claims, it is characterized in that: in heating layer 3 outsides heat-insulation layer 5 is arranged, heat-insulation layer 5 can be asbestos, aluminium silicate wool, refractory cement, thermal insulation coatings, wherein one or both or two or more combinations.

6. according to the 3rd described processing technology of claims, it is characterized in that: constitute microwave absorbing material and be meant zinc oxide, graphite, acetylene carbon black, carborundum, ferrite, wherein one or both or two or more combinations.

7. according to the 3rd described processing technology of claims, it is characterized in that: the material that constitutes inorfil is meant asbestos, aluminium silicate wool, carbon fiber, ceramic fibre, wherein one or both or two or more combinations.

8. according to the 3rd described processing technology of claims, it is characterized in that: the material that constitutes inorganic adhesive is meant silicate, phosphate, cupric oxide bonding agent.