CN102200304B - Furnace body of microwave oven - Google Patents
Furnace body of microwave oven Download PDFInfo
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- CN102200304B CN102200304B CN201110028766A CN201110028766A CN102200304B CN 102200304 B CN102200304 B CN 102200304B CN 201110028766 A CN201110028766 A CN 201110028766A CN 201110028766 A CN201110028766 A CN 201110028766A CN 102200304 B CN102200304 B CN 102200304B
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Abstract
Disclosed is a furnace body of a microwave oven. The objective of the invention is to solve problems existing in widely known heating equipment for the heating of food, such as single function, low speed, high energy consumption, etc. The furnace body comprises an oven housing of hollow structure and is characterized in that: the furnace cavity in the oven housing is divided into a first chamber, a heating chamber, a circulation wind pipe and a centrifugation cavity; electric heating elements are provided in the heating chamber; a catalytic converter is installed between the first chamber and the circulation wind pipe; a centrifugal blower device is arranged in the centrifugation cavity; and a high frequency microwave generation device is arranged on the bottom of the first chamber. According to the invention, high frequency microwave, strong convection circulation hot air and high temperature steam are combined together for the heating, which enables powerful functions, high speed and environmental protection. The utilization of the invention greatly improves such disadvantages of conventional ways of heating as single function, low efficiency, liability of producing pollution and tainted flavor, high energy consumption and high operation cost.
Description
Technical field
The present invention relates to a kind of apparatus for heating food of high-efficiency environment friendly, especially a kind of microwave oven body of heater that integrates high-frequency microwave, circulating air, high-temperature steam.
Background technology
At present, known kitchen firing equipment just utilizes a kind of simple mode heat food.Or heat conduction or thermal convection current or heating using microwave or Infrared Heating, mode of heating is single, inefficiency, and be prone to taint of odour between food, and difference is big, and energy consumption and human cost are high.
Summary of the invention
Drawbacks such as current heat food function singleness, speed are slow in order to solve, energy consumption height; The present invention combines high-frequency microwave, strong convection frequency conversion type circulating air and high-temperature steam effectively; Carry out dynamic hybrid heating; Powerful, energy-conserving and environment-protective, firing rate is 8-10 a times of traditional approach.
The present invention solves the technical scheme that its technical problem takes: a kind of microwave oven body of heater, comprise innerly it is characterized in that for the baking oven housing of hollow structure,
The wind deflector of one " L " shape is divided into first cavity and second cavity with the furnace chamber of baking oven enclosure interior; One dividing plate is after wind deflector corner extends to furnace chamber on the plate inwall; Second cavity is divided into the heating chamber of level and vertical circulation air path again, is provided with electrical heating elements in the said heating chamber; The air-guiding hole array is arranged on the level board of said wind deflector, on the riser of said wind deflector return air inlet is arranged, catalytic converter is installed at said return air inlet place; The centrifugal cavity of plate arranged outside behind furnace chamber; On the centrifugal cavity sidewalls air outlet is arranged; Centrifugal air-blast device is set in the centrifugal cavity, connects between said centrifugal cavity and the circulation air path, and the air outlet on said centrifugal cavity sidewalls is communicated to heating chamber through " C " shape branch pipe(tube);
One high-frequency microwave generating means is installed on the bottom surface of baking oven housing;
Be provided with temperature element in the circulation air path between the plate behind the riser of said wind deflector and the furnace chamber.
Further, described high-frequency microwave generating means comprises magnetron, waveguide and teeter chamber, and said teeter chamber comprises cylindrical shell, micarex, axle sleeve, rotating shaft, blade; The coaxial inside and outside both sides that are arranged on base plate of said cylindrical shell and axle sleeve; Circular micarex is installed in the cylindrical shell upper surface, and rotating shaft is installed in the axle sleeve, rotating shaft upper end mounting blades; Blade is positioned at the teeter chamber, and blade does not contact with cylindrical shell; Baking oven housing base plate and cylindrical shell corresponding position have the microwave coupling aperture; Waveguide one end is connected with baking oven housing plate outer side face at microwave coupling aperture place, and the other end connects magnetron.
Said blade is three, each blade radially with axial direction bending and molding, blade the rotation process in the microwave in the furnace chamber is evenly distributed.
Further, said waveguide is the rectangular tube of an end shutoff one end opening; Have louvre on the waveguide shutoff end face, said waveguide upper side has one through upwards stretching and protruding microwave launch hole near shutoff end place, is used to install magnetron; The waveguide opening is used for cooperating with the microwave coupling aperture for the funnel-form of the bending and molding that makes progress.
Further; Described temperature element is a thermocouple, and described thermocouple comprises thermocouple shielding case, insulation sleeve mounting pipe, insulation sleeve, electric thermo-couple temperature probe, and thermocouple shielding case is installed in behind wind deflector and the furnace chamber between the plate on the medial surface of circulation air path; And thermocouple shielding case is provided with aperture; The insulation sleeve mounting pipe is installed on the lateral surface of thermocouple shielding case, in the insulation sleeve mounting pipe insulation sleeve is arranged, the electric thermo-couple temperature probe passes insulation sleeve and stretches in the thermocouple shielding case; Thermocouple passes to intelligent control system with the actual temperature signal in the furnace chamber; For heat food provides temperature guarantee accurately; Aperture above the thermocouple shielding case; Can guarantee that thermocouple measures the furnace chamber actual temperature exactly, can effectively avoid thermocouple to transmit mistake again because of microwave interference produces signal.
Said centrifugal air-blast device comprises motor and the fan blade that is installed in the motor shaft top, and said fan blade is positioned at centrifugal cavity.
One steam water inlet pipe stretches in the centrifugal wind chamber after passing the tube wall of " C " shape branch pipe(tube); Water inlet system is delivered to water in the centrifugal wind chamber through the steam water pipe, and instant water is vaporized the back and is imported rapidly in the furnace chamber by circulating air, when food is heated, has improved the cooking environments of furnace chamber, has greatly kept the nutrition and the moisture of food.
Centrifugal air-blast device rotates at a high speed in centrifugal wind chamber and forms the strong convection circulated air; The electric heating energy that electrical heating elements is produced is spurting with the mode of hot blast through circulation air path and the air-guiding hole array above the wind deflector and passes to food; Carry out after the heat exchange returning centrifugal wind chamber after return air inlet by the wind deflector trailing flank purifies through catalytic converter with food; Constitute a big strong convection circulating air passage; Food is heated from outside to inside, and good food coloring ability is provided, catalytic converter at high temperature produces activity; Oil smoke and other material to producing in the heat food process carry out catalytic purification, and make pollution-free between food, no taint of odour.
The invention has the beneficial effects as follows: the present invention integrates high-frequency microwave, strong convection circulating air and high-temperature steam, and hybrid heating is powerful, environmental protection fast.Greatly improved traditional heating mode function singleness, inefficiency, be prone to pollute, be prone to drawbacks such as taint of odour, energy consumption and operation cost be high.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is A-A cutaway view of Fig. 1;
Fig. 3 is the structural representation of waveguide;
Fig. 4 is B-B cutaway view of Fig. 3;
Fig. 5 is the structural representation of waveguide main body;
Fig. 6 is the cutaway view of teeter chamber;
Fig. 7 is the structural representation of temperature element;
Fig. 8 is C-C cutaway view of Fig. 7;
Among the figure: 1 baking oven housing, 11 fire doors, plate behind 12 furnace chambers, 13 circular holes, 14 furnace chamber base plates, 2 wind deflectors, 21 risers; 22 level boards, 23 return air inlets, 24 air-guiding hole arrays, 29 dividing plates, 3 catalytic converters, 41 motors, 42 fan blade; 51 " C " shape branch pipe(tube), 52 steam water inlet pipes, 61 magnetrons, 62 waveguides, 621 waveguide main bodys, 622 waveguides lid, 623 waveguide closure plates; 624 microwave reflection faces, 625 microwave launch holes, 63 teeter chambers, 631 cylindrical shells, 632 micarexs, 633 rotating shafts, 634 blades; 64 microwave coupling apertures, 7 temperature elements, 71 thermocouple shielding cases, 72 insulation sleeve mounting pipe, 73 insulation sleeves, 74 electric thermo-couple temperature probes, 75 apertures; 8 food carriages, 91 first cavitys, 92 heating chambers, 921 electrical heating elements, 93 circulation air paths, 94 centrifugal cavitys.
The specific embodiment
Like Fig. 1～shown in Figure 8; A kind of microwave oven body of heater; Comprise the inner baking oven housing 1 of hollow structure that is; The wind deflector that fire door 11, " L " shape arranged on the furnace chamber header board is divided into first cavity 91 and second cavity with the furnace chamber of baking oven enclosure interior, and wind deflector is combined with level board 22 by two orthogonal risers 21.One dividing plate 29 on plate 12 inwalls, is the level of state after wind deflector corner extends to furnace chamber, and second cavity is divided into the heating chamber of level and vertical circulation air path again, and heating chamber 92 is positioned at the furnace chamber top, and circulation air path 93 is positioned at the furnace chamber rear portion.Air-guiding hole array 24 is arranged on the level board of wind deflector 2, can the heating chamber 92 and first cavity 91 be connected, first cavity is used for heat food and uses.The bottom of the riser 21 of wind deflector has a return air inlet 23, and catalytic converter 3 is installed at the return air inlet place; The centrifugal cavity 94 of plate 12 arranged outside behind furnace chamber has a circular hole 13 on the plate 12 behind the furnace chamber between centrifugal cavity 94 and the circulation air path 93, be the circulated air import, realizes both perforations.See that from behind " G " shape that centrifugal cavity 94 is a spiral forms on the plate 12 by the G shaped shell and after being fastened on furnace chamber, centrifugal cavity 94 is communicated with through " C " shape branch pipe(tube) 51 with heating chamber 92.Constitute circulation in the hot blast in the furnace chamber, circulating path is first cavity, circulation air path, centrifugal cavity, heating chamber, first cavity.
In the centrifugal cavity 94 centrifugal air-blast device is set.Centrifugal air-blast device comprises motor 41 and the fan blade 42 that is installed in the motor shaft top, and fan blade 42 is positioned at centrifugal cavity 94.Motor 41 is installed in the centrifugal cavity outside, and the front of fan blade is a plate behind the furnace chamber.
Be provided with electrical heating elements 921 in the heating chamber 92, this electrical heating elements is infrared electric heating tube, can the air in the heating chamber be heated.
One steam water inlet pipe 52 passes and stretches in the centrifugal wind chamber 94 behind the tube wall of " C " shape branch pipe(tube) 51.
One high-frequency microwave generating means is installed on the furnace chamber base plate 14 of baking oven housing; This high-frequency microwave generating means comprises magnetron 61, waveguide 62 and teeter chamber 63.Fixing teeter chamber 63 on furnace chamber base plate 14 upper sides has the microwave coupling aperture 64 of rectangle on the furnace chamber base plate 14 corresponding with the teeter chamber, waveguide 62 is fixedly connected with the furnace chamber lateral surface at microwave coupling aperture place, and magnetron 61 is installed in the other end of waveguide.As shown in Figure 6; Teeter chamber 63 comprises cylindrical shell 631, micarex 632, axle sleeve, rotating shaft 633, blade 634; The coaxial inside and outside both sides that are arranged on furnace chamber base plate 14 of cylindrical shell and axle sleeve; Circular micarex 632 is installed in cylindrical shell 631 upper surfaces, and rotating shaft 633 is installed in the axle sleeve, rotating shaft upper end mounting blades 634.Blade is three, each blade radially with axial direction bending and molding.Blade is positioned at cylindrical shell 631, and does not contact with cylindrical shell.Like Fig. 3, shown in Figure 4, waveguide 62 1 ends are connected with baking oven housing plate outer side face at microwave coupling aperture place, and the other end connects magnetron 61, is used for heating using microwave.Waveguide 62 is the rectangular tube of an end shutoff one end opening, has three to combine, and is the hollow cavity that is made up of waveguide main body 621, waveguide lid 622 and waveguide closure plate 623.Waveguide main body 621 wherein is made up of bottom surface, side and microwave reflection face, and the funnel-form of opening for the bending and molding that makes progress formed, formed to microwave reflection face 624 by two inclined-planes, is used for cooperating with the microwave coupling aperture.Have louvre on the waveguide closure plate 623, have one through upwards stretching and protruding microwave launch hole 625 near shutoff end place on the waveguide lid 622, be used to install magnetron.Its operation principle is; The high-frequency microwave that magnetron 61 produces is got into rectangular waveguide and is transferred to the reflex port of the waveguide other end to go the ripple mode by the waveguide emission port; There are two sloping reflectors that microwave is imported teeter chamber 63 at waveguide reflex port place, in the process of stirring vane rotation, the microwave in the furnace chamber evenly distributed then.
Upside at cylindrical shell is installed food carriage 8, and food to be heated places on the food carriage.
Be provided with temperature element 7 in the circulation air path between the plate 12 behind the riser 21 of wind deflector and the furnace chamber.Like Fig. 7, shown in Figure 8, temperature element is a thermocouple, and thermocouple comprises thermocouple shielding case 71, insulation sleeve mounting pipe 72, insulation sleeve 73, electric thermo-couple temperature probe 74.Thermocouple shielding case 71 is installed on the medial surface of the circulation air path between the plate behind wind deflector riser and the furnace chamber; On the corresponding with it lateral surface insulation sleeve mounting pipe 72 is installed; Insulation sleeve 73 is arranged in the insulation sleeve mounting pipe; Electric thermo-couple temperature probe 74 passes insulation sleeve 73 and stretches in the thermocouple shielding case 71, and aperture 75 is arranged above the thermocouple shielding case 71.Aperture 75 above the thermocouple shielding case 71 can guarantee that thermocouple measures the actual temperature in the furnace chamber exactly, can effectively avoid thermocouple to transmit mistake because of microwave interference produces signal again.Among Fig. 8, insulation sleeve 73 is arranged in the cavity of insulation sleeve mounting pipe 72, a passage is arranged on the insulation sleeve 73, electric thermo-couple temperature probe 74 stretches in thermocouple shielding case 71 cavitys via the insulation sleeve passage, and electric thermo-couple temperature probe 74 does not contact with thermocouple shielding case.
Except that the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (7)
1. a microwave oven body of heater comprises that inside for the baking oven housing of hollow structure, is characterized in that,
The wind deflector of one " L " shape is divided into first cavity and second cavity with the furnace chamber of baking oven enclosure interior; On the inwall of one dividing plate plate after wind deflector corner extends to furnace chamber; Second cavity is divided into the heating chamber of level and vertical circulation air path again, is provided with electrical heating elements in the said heating chamber; The air-guiding hole array is arranged on the level board of said wind deflector, on the riser of said wind deflector return air inlet is arranged, catalytic converter is installed at said return air inlet place; The centrifugal cavity of plate arranged outside behind furnace chamber; On the centrifugal cavity sidewalls air outlet is arranged; In the said centrifugal cavity centrifugal air-blast device is set, connects between said centrifugal cavity and the circulation air path, and the air outlet on said centrifugal cavity sidewalls is communicated to heating chamber through " C " shape branch pipe(tube);
One high-frequency microwave generating means is installed on the bottom surface of baking oven housing;
Be provided with temperature element in the circulation air path between the plate behind the riser of said wind deflector and the furnace chamber.
2. a kind of microwave oven body of heater according to claim 1; It is characterized in that described high-frequency microwave generating means comprises magnetron, waveguide and teeter chamber, said teeter chamber comprises cylindrical shell, micarex, axle sleeve, rotating shaft, blade; The coaxial inside and outside both sides that are arranged on base plate of said cylindrical shell and axle sleeve; Circular micarex is installed in said cylindrical shell upper surface, and rotating shaft is installed in the said axle sleeve, said rotating shaft upper end mounting blades; Said blade is positioned at the teeter chamber, and said blade does not contact with cylindrical shell; Baking oven housing base plate and said cylindrical shell corresponding position have the microwave coupling aperture; Said waveguide one end is connected with baking oven housing plate outer side face at microwave coupling aperture place, and the said waveguide other end connects magnetron.
3. a kind of microwave oven body of heater according to claim 2 is characterized in that said blade is three, each blade radially with axial direction bending and molding, blade the rotation process in the microwave in the furnace chamber is evenly distributed.
4. a kind of microwave oven body of heater according to claim 2 is characterized in that, said waveguide is the rectangular tube of an end shutoff one end opening; Have louvre on the said waveguide shutoff end face, said waveguide upper side has one through upwards stretching and protruding microwave launch hole near shutoff end place, is used to install magnetron; Said waveguide opening is used for cooperating with the microwave coupling aperture for the funnel-form of the bending and molding that makes progress.
5. a kind of microwave oven body of heater according to claim 1 and 2; It is characterized in that; Described temperature element is a thermocouple, and described thermocouple comprises thermocouple shielding case, insulation sleeve mounting pipe, insulation sleeve, electric thermo-couple temperature probe, and said thermocouple shielding case is installed in behind wind deflector and the furnace chamber between the plate on the medial surface of circulation air path; And said thermocouple shielding case is provided with aperture; On the said thermocouple shielding case lateral surface insulation sleeve mounting pipe is installed, in the said insulation sleeve mounting pipe insulation sleeve is arranged, said electric thermo-couple temperature probe passes insulation sleeve and stretches in the thermocouple shielding case.
6. a kind of microwave oven body of heater according to claim 1 is characterized in that, said centrifugal air-blast device comprises motor and the fan blade that is installed in the motor shaft top, and said fan blade is positioned at centrifugal cavity.
7. a kind of microwave oven body of heater according to claim 1 is characterized in that, a steam water inlet pipe stretches in the centrifugal wind chamber after passing the tube wall of " C " shape branch pipe(tube).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110028766A CN102200304B (en) | 2011-01-26 | 2011-01-26 | Furnace body of microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110028766A CN102200304B (en) | 2011-01-26 | 2011-01-26 | Furnace body of microwave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102200304A CN102200304A (en) | 2011-09-28 |
| CN102200304B true CN102200304B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110028766A Expired - Fee Related CN102200304B (en) | 2011-01-26 | 2011-01-26 | Furnace body of microwave oven |
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| CN110403486A (en) * | 2019-08-30 | 2019-11-05 | 广东美的厨房电器制造有限公司 | Cooking appliance |
| CN111887737A (en) * | 2020-08-08 | 2020-11-06 | 吴晶 | Electric oven |
| CN111870141A (en) * | 2020-08-08 | 2020-11-03 | 吴晶 | Electric oven |
| WO2022151693A1 (en) * | 2021-01-15 | 2022-07-21 | 运鼎科技（北京）有限公司 | Microwave steaming oven and cooking method implemented by means of microwave steaming oven |
| WO2022151692A1 (en) * | 2021-01-15 | 2022-07-21 | 运鼎科技（北京）有限公司 | Microwave steam oven |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5676044A (en) * | 1996-01-03 | 1997-10-14 | Lara, Jr.; George A. | Rotary air impingement oven |
| CN1301477A (en) * | 1998-04-02 | 2001-06-27 | 透波歇夫技术股份有限公司 | Residential oven with convectional and microwave heating |
| CN1455163A (en) * | 2002-04-29 | 2003-11-12 | 乐金电子(天津)电器有限公司 | Apparatus of air flow for microwave oven |
| CN201964480U (en) * | 2011-01-26 | 2011-09-07 | 济南佳泰电器有限公司 | Microwave oven furnace body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6376817B1 (en) * | 1998-10-09 | 2002-04-23 | Turbochef Technologies, Inc. | Compact quick-cooking oven |
-
2011
- 2011-01-26 CN CN201110028766A patent/CN102200304B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5676044A (en) * | 1996-01-03 | 1997-10-14 | Lara, Jr.; George A. | Rotary air impingement oven |
| CN1301477A (en) * | 1998-04-02 | 2001-06-27 | 透波歇夫技术股份有限公司 | Residential oven with convectional and microwave heating |
| CN1455163A (en) * | 2002-04-29 | 2003-11-12 | 乐金电子(天津)电器有限公司 | Apparatus of air flow for microwave oven |
| CN201964480U (en) * | 2011-01-26 | 2011-09-07 | 济南佳泰电器有限公司 | Microwave oven furnace body |
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| CN102200304A (en) | 2011-09-28 |
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