CN2384132Y - Hot air convection microwave oven - Google Patents
Hot air convection microwave oven Download PDFInfo
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- CN2384132Y CN2384132Y CN 99236670 CN99236670U CN2384132Y CN 2384132 Y CN2384132 Y CN 2384132Y CN 99236670 CN99236670 CN 99236670 CN 99236670 U CN99236670 U CN 99236670U CN 2384132 Y CN2384132 Y CN 2384132Y
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Abstract
The utility model relates to a hot air convection microwave oven comprising a heating cavity, a cavity, a furnace door, an operating panel, a permatron, a potential transformer, etc. The heating cavity is arranged at the top of the cavity and is composed of a cavity board, a convection fan, a fan driving wheel and a heating pipe. The fan is in a radial flow type and is arranged on the cavity board together with the drive wheel. The top panel of the cavity is provided with an air inlet and an air outlet which are used for convection. The convection fan blows the hot air produced by the heating pipe in the furnace body forcibly, so that the periphery of the furnace chamber forms a high pressure air curtain to shield the affluence of the outer air. The center forms a low pressure area, and the high pressure and the low pressure convectively circulate. The temperature of the furnace chamber is improved to obtain a better firing effect when firing.
Description
The utility model relates to a kind of micro-wave oven, relates in particular to a kind ofly on the basic function basis of the microwave energy cooking food that utilizes magnetron to launch, and increases and to utilize electro-heat equipment that the air in the micro-wave oven furnace chamber is carried out hydronic hot air convection type ripple stove.
Micro-wave oven is a kind of household electrical appliance that are used for cooking food, and it has used the food molecule of being cooked is subjected to alternating electromagnetic field in micro-wave oven furnace chamber effect, high frequency motion takes place, the principle of molecule and intermolecular frictional heat.In recent years,, on the basis of single microwave function, made up other function gradually, developed barbecue type microwave oven, developed convection-microwave oven in the recent period again in order to seek to obtain the more beautiful color of microwave cooked food.
The structure of barbecue type microwave oven substantially as shown in Figure 4 and Figure 5, increased by an electro-heat equipment 1 in the furnace chamber outside or inboard, heat radiation is roasted to foodstuff surface,, generally all increased by one by motor-driven rotating disk 2 in the furnace chamber bottom for improving the effect of food barbecue.In this type of barbecue type microwave oven, the fixed-site of electro-heat equipment 1, only can make food below electro-heat equipment 1, carry out the radiation barbecue by the uniform rotation of rotating disk 2, so can't make full use of the heat that electro-heat equipment 1 produces, a large amount of heat energy is consumed useless, simultaneously food is under the hot environment fully, for a long time at cooking period, roast second-rate, foodstuff surface easily formation burn, phenomenon such as overheated and under-done.In addition, press the layout of Fig. 5,, thereby taken the furnace chamber space, can not make full use of the furnace chamber dischargeable capacity owing to electro-heat equipment 1 is installed in the furnace chamber.
Convection-microwave oven is except that reservation utilizes the major function of microwave cooked food, also have by the circulate function of cooking food of electric heater unit and the air circulation device mode by radiation, convection current, not only can utilize microwave energy from the inside to the outside, equably, thoroughly boil with food, can utilize simultaneously heat radiation that electric heater unit produces, surface that convection current makes food slightly burned again, have tempting outward appearance and good sense of taste.
Fig. 6 shows a kind of layout of air duct of conventional convection micro-wave oven furnace chamber, and Fig. 7 then shows the internal structure in its electric chamber.In Fig. 6, Fig. 7: 1. fire door, 2. furnace chamber venthole, 3. air inlet, 4. exhaust outlet, 5. furnace chamber air admission hole, 6. right plate, 7. rotating disk, 8. squab panel, 9. left plate, 10. cooling fan, 11. magnetic cavity pipes, 12. air scoops, 13. baffle plates.
The electric heater (not shown) that is used for by convection type heating furnace chamber inner air is housed in the behind of furnace chamber, and on furnace chamber squab panel 8, offer air inlet 3 and exhaust outlet 4, constitute the interior air of furnace chamber under the convection type by being arranged on the path that furnace chamber convection fan (not shown) behind circulates so that operate in.
Be provided with magnetron 11 and high-tension transformer, high-voltage capacitor (all not shown among the figure) in the electric chamber shown in Figure 7, produce high-frequency microwave, also installed cooling fan 10 and air scoop 12, above electric component has been cooled off, and the portion of external air has been introduced furnace chamber.The some air admission holes 5 that distribute on the right plate 6 of furnace chamber are exactly for the part of the extraneous air of cooling fan 10 forced flow is imported furnace chamber, so that the venthole 2 from the left plate 9 of furnace chamber is discharged the steam that elimination is produced when carrying out cooking food by microwave energy.Yet these air admission holes 5 promptly must stop when convection type by the electric heater food roasting time, because can be caused the loss of heat in the furnace chamber by the cold air of air admission hole 5 importings.For this reason, in the electric chamber of conventional convection micro-wave oven, be provided with baffle plate 13, make it close or open according to cooking method.For example, when operating in microwave cooked mode, this baffle plate 13 is opened, and makes extraneous air guiding furnace chamber, because the air themperature of this cooking method and furnace chamber is irrelevant; When operating in convection current barbecue mode, this baffle plate 13 is closed, and prevents that extraneous air from flowing into furnace chamber, to keep the high temperature in the furnace chamber.Yet the switching of this baffle plate 13 need drive and control device, consequently makes this convection-microwave oven complex structure, and weight increases, and cost increases.
In order to address the above problem, the Chinese patent application that application number is 96107887.1, publication number is CN1143731A discloses a kind of " convection-microwave oven " as shown in Figure 8.(on February 26th, 1997 is open)
Fig. 8 is the cross sectional view of this convection-microwave oven, clearly shows the air duct of its furnace chamber and the topology layout in electric chamber.It comprises a furnace chamber 13 that is used for cooking food, be installed in the fire door 14 of furnace chamber 13 fronts, be contained in the protective cover 5 of furnace chamber 13 back and the electric chamber 15 adjacent with furnace chamber 13.The electric heater unit 1 that is used for producing heat under convection type, one are housed in protective cover 5 inside to be used to force enter the air circulation device 3 of furnace chamber 13 and drive motors thereof 2, a gripper shoe 6 that is used to install air circulation device 3 and motor 2 by 1 heated hot air heated of electric heater unit.The rear wall of furnace chamber 13 is provided with the tap 4 of hot-air and the inlet hole 17 of cold air, discharges furnace chamber 13 and provides the circulation can the road for hot-air enters furnace chamber 13 and cold air.The discharge of the steam in the furnace chamber 13 when microwave cooked in order to solve is provided with air inlet 12 at the sidewall 7 of furnace chamber 13, is provided with exhaust outlet 16 at the sidewall 19 of furnace chamber 13.Be provided with one by motor-driven rotating disk 18 in the bottom of furnace chamber 13, be used for placing, and food is heated evenly by cooking food.Arranged that in electric chamber 15 one is used to launch and transmits the magnetron 9 of microwave energy and transformer 20, fan 8 that is used to cool off above-mentioned electric component and drive motors thereof, an airhood 10 that is used for air guide, the one end connects air inlet 12, the other end then opens wide to fan 8 by magnetron 9, control panel 11 is then arranged in 15 front portions, electric chamber, is used for micro-wave oven is carried out operations.
Discharge by air inlet 12 and gas outlet 16 for the hot-air in convection current cooking method lower furnace chamber 13 is unlikely, to guarantee that the hot-air in the furnace chamber 13 is in closed state, be beneficial to the temperature and the efficiency of heating surface that improve in the furnace chamber 13, this convection-microwave oven utilizes a motor 2 to air inlet 12 deflection installings to drive a tube-axial fan 3, to air inlet 12 forced-air blasts, form a gas curtain at air inlet 12 places, the cold air that is driven by cooling fan 8 just can not enter furnace chamber 13 by air inlet 12 like this.Though when this convection-microwave oven had solved the convection current cooking method, the closed question of hot-air in the furnace chamber had adopted comparatively complicated structure, because the deflection installing causes processing and assembling difficulty, had also increased the weight of product simultaneously, had increased cost.
The purpose of this utility model provides a kind of hot air convection type ripple stove, it uses when convection type, can cause the inflow of a gas curtain shielding extraneous air by hot-air convection circulation in furnace chamber, improve furnace chamber barbecue temperature and barbecue efficient, and avoid adopting comparatively complicated structure.
The purpose of this utility model is achieved in that at the cavity of microwave oven top of common single microwave energy cooking food installs a heating chamber, the heating tube that is used under convection type producing heat, one are housed in this heating chamber is used to force heating tube institute heated hot air heated to enter the convection fan of furnace chamber, convection fan is driven by driving belt by the motor that is installed in the electric chamber, offers the air inlet and the exhaust outlet of hot-air on the wainscot of cavity.
Described convection fan is a radial fan, is installed in the frame center that heating tube constitutes.
Described heating tube is rectangular box-like, circular, ellipticity or other symmetric shape.
The hot air inlet that described cavity wainscot is offered be distributed in heating tube under, its shape is corresponding with heating tube, exhaust outlet be distributed in convection fan under, be positioned at the formed pattern center of air inlet.
Hot air convection type ripple stove of the present utility model utilizes the forced hot air convection circulation effect of convection fan when the hot air convection cooking method, form a gas curtain at the furnace chamber periphery, and impel and form higher-pressure region and low-pressure area in the furnace chamber, the circumferential pressure height, center pressure is low.Because then convection circulation of air in the existence of pressure reduction, furnace chamber, unlikely escaping is simultaneously again because the formation of higher-pressure region has stopped the inflow of extraneous air.Its hot-air concrete situation of convection circulation in furnace chamber is seen Fig. 3.
The utility model is compared with common microwave stove, both can utilize the microwave energy cooking food, and make food well-done equably from inside to outside, increase the function of utilizing convection current, radiation heating food again, the surface of food is slightly burnt, have tempting outward appearance and good sense of taste; With the conventional convection micro-wave oven relatively, saved the baffle plate that hides the furnace chamber air admission hole and corresponding driving thereof, control device be set; Compare with above-mentioned convection-microwave oven, avoided deflection that convection fan is set, simplify the structure, simplified manufacturing process, optimized processing and assembling.
Fig. 1 is the perspective exploded view of hot air convection type ripple stove of the present utility model;
Fig. 2 is the furnace chamber of hot air convection type ripple stove of the present utility model and the vertical cutaway view that cuts in electric chamber;
Fundamental diagram when Fig. 3 is the hot air convection of the present utility model cooking;
Fig. 4 is the barbecue type microwave oven structure diagram;
Fig. 5 is another kind of barbecue type microwave oven structure diagram;
Fig. 6 is a kind of conventional convection micro-wave oven furnace chamber air duct layout;
Fig. 7 is the electric chamber cut-away view of micro-wave oven shown in Figure 6;
Fig. 8 is the cross sectional view of another kind of convection-microwave oven.
Lift an instantiation below,, the structure and the course of work of hot air convection type ripple stove of the present utility model is described with reference to accompanying drawing.
Fig. 1, Fig. 2 have described a most preferred embodiment of the present utility model, as shown in the figure, hot air convection type ripple stove of the present utility model comprises that fire door 30 that a heating chamber that is used to add hot-air 10, one be used for the cavity 20 of cooking food, one and be used for seal chamber, one are used to operate the control panel 40 of control, one and produce and transmit magnetron 50, high-tension transformer 60, the high-voltage capacitor 70 of microwave energy and the case 80 that has blind window.High-tension transformer 60 is installed on the base plate 61, and base plate 61 also has blind window.Heating chamber 10 is made up of heating chamber plate 11, radial-flow type convection fan 12, the drive 13, the heating tube 14 that are installed on the chamber plate 11.The heating tube 14 of present embodiment is made into rectangular box-like.
The use of hot air convection type ripple stove of the present utility model is operated to be divided into and is utilized the microwave energy cooking food and utilize heat-generating pipe 14 heating, convection fan 12 forced air convection current food roasting dual modes.
On the one hand when using the heating using microwave of micro-wave oven basic function, fan 26 driven air enter from ventilating opening 25, a part is after the surface of magnetron 50 and high-tension transformer 60 is flow through, the shutter of being offered on base plate 61 and case 80 is gradually discharged outside the micro-wave oven, another part passes through the inside of magnetron 50, behind the cooling magnetron 50, enter in the furnace chamber 27 by the air admission hole 29 on air scoop 51 and furnace chamber 27 right side walls, carrying the steam of microwave cooked generation secretly, venthole 28 from furnace chamber 27 left side walls is discharged, and the shutter on case 80 is discharged outside the micro-wave oven again.On the other hand when using the hot air convection function, for preventing that the furnace chamber 27 interior cold airs that hot-air is outwards overflowed and stove is outer from entering the temperature that cause in the furnace chamber 27 and can't raise and thermostatic control stably, hot air convection type ripple stove of the present utility model is by the driving of convection fan 12, form low-pressure area at furnace chamber 27 zone lines, neighboring area at furnace chamber 27 then forms the higher-pressure region, heated air enters furnace chamber 27 through air inlet 21 in heating chamber 10, the internal temperature of furnace chamber 27 is improved, and the cooking food heat-shift in continuous and the furnace chamber 27, after a cooling procedure, the hot-air that has been exchanged heat is because the existence of pressure differential, enter low-pressure area from the higher-pressure region, enter heating chamber 10 through exhaust outlet 22 again, be heated once more.Circulation so repeatedly, the dependence air is an intermediate medium, constantly the heat that heat-generating pipe 14 is produced is delivered on the cooking food by the mode of convection current, radiation, reaches the cooking and roasts two kinds of effects.
Certainly, under convection current barbecue mode, also can use the microwave cooked mode inside of well-done food equably.
In addition, mandatory declaration be, heating tube and under the shape of air inlet, also can be made into other symmetric shape, as symmetrical polygon.But these conversion all drop within the protection domain of the present utility model.
Claims (6)
1. hot air convection type ripple stove, comprise a cavity, an electric chamber adjacent with cavity, one fan is installed in the fire door of cavity front sealing furnace chamber, the one packaged front, electric chamber that is located at is used to carry out the control panel that micro-wave oven is operated, base plate and case, cavity is by last lower wall panels, squab panel and biside plate are formed, form a furnace chamber that is used for cooking food, the rotating disk by the food container of synchronous machine drives is installed in its bottom, be separated from each other by side plate between furnace chamber and the electric chamber, be distributed with extraneous air on this side plate and enter the ostium of furnace chamber, on its opposing sideplates, the steam discharge hole that is produced when being distributed with the microwave energy cooking food; The high-tension transformer that is used to launch and transmit microwave energy is installed in the electric chamber, magnetron, high-voltage capacitor, a cooling fan and a drive motors thereof that is used for the electric component in the cooling electric chamber, an air scoop that is used to guide the air that cooling fan bloats, this air scoop one end connects the air ostium on the side plate, the other end then opens wide to cooling fan by magnetron, wherein high-tension transformer is fixed on the base plate, magnetron and air scoop are fixed on the right plate of furnace chamber, high-voltage capacitor and cooling fan are fixed on the squab panel, ventilating opening is distributed in the position that squab panel faces cooling fan, case is topped in the cavity periphery, have the shutter that is used for ventilation and heat on it, it is characterized in that: it also comprises a heating chamber that is installed in the cavity top, the heating tube that is used for producing heat under convection type is housed in this heating chamber, one is used to force to make heating tube institute heated hot air heated to enter the convection fan of furnace chamber, convection fan is driven by the drive that is installed on the heating chamber plate by the motor in the electric chamber, offers the air inlet and the exhaust outlet of hot-air on the wainscot of cavity.
2. hot air convection type ripple stove according to claim 1 is characterized in that convection fan is a radial-flow type, is installed in the frame center that heating tube constitutes.
3. hot air convection type ripple stove according to claim 1 is characterized in that heating tube is rectangular box-like.
4. hot air convection type ripple stove according to claim 1 is characterized in that heating tube is circular.
5. hot air convection type ripple stove according to claim 1 is characterized in that heating tube is an ellipticity.
6. thermal convection current formula micro-wave oven according to claim 1, it is characterized in that hot air inlet that described cavity wainscot is offered be distributed in heating tube under, its shape is corresponding with heating tube, exhaust outlet be distributed in convection fan under, be positioned at the formed pattern center of air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99236670 CN2384132Y (en) | 1999-07-21 | 1999-07-21 | Hot air convection microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99236670 CN2384132Y (en) | 1999-07-21 | 1999-07-21 | Hot air convection microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2384132Y true CN2384132Y (en) | 2000-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99236670 Expired - Fee Related CN2384132Y (en) | 1999-07-21 | 1999-07-21 | Hot air convection microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2384132Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397142B (en) * | 2007-09-24 | 2011-06-15 | 中国科学院大连化学物理研究所 | Microwave apparatus and method for synthesizing molecular sieve film |
| CN106308554A (en) * | 2016-10-19 | 2017-01-11 | 广东美的厨房电器制造有限公司 | Cooking method of cooking appliance |
| CN106439945A (en) * | 2016-10-14 | 2017-02-22 | 南京三乐微波技术发展有限公司 | Microwave barbecuing device |
| CN106562683A (en) * | 2016-10-19 | 2017-04-19 | 广东美的厨房电器制造有限公司 | Cooking method of cooking electric appliance |
| CN106562684A (en) * | 2016-10-19 | 2017-04-19 | 广东美的厨房电器制造有限公司 | Cooking method of cooking electric appliance |
| CN108236386A (en) * | 2016-12-23 | 2018-07-03 | 宁波方太厨具有限公司 | A kind of oven microwave oven all-in-one machine |
-
1999
- 1999-07-21 CN CN 99236670 patent/CN2384132Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397142B (en) * | 2007-09-24 | 2011-06-15 | 中国科学院大连化学物理研究所 | Microwave apparatus and method for synthesizing molecular sieve film |
| CN106439945A (en) * | 2016-10-14 | 2017-02-22 | 南京三乐微波技术发展有限公司 | Microwave barbecuing device |
| CN106439945B (en) * | 2016-10-14 | 2018-12-18 | 南京三乐微波技术发展有限公司 | A kind of microwave barbecue equipment |
| CN106308554A (en) * | 2016-10-19 | 2017-01-11 | 广东美的厨房电器制造有限公司 | Cooking method of cooking appliance |
| CN106562683A (en) * | 2016-10-19 | 2017-04-19 | 广东美的厨房电器制造有限公司 | Cooking method of cooking electric appliance |
| CN106562684A (en) * | 2016-10-19 | 2017-04-19 | 广东美的厨房电器制造有限公司 | Cooking method of cooking electric appliance |
| CN108236386A (en) * | 2016-12-23 | 2018-07-03 | 宁波方太厨具有限公司 | A kind of oven microwave oven all-in-one machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG GALANZ GROUP CO.,LTD. Free format text: FORMER OWNER: GELANSHI ELECTRICAL EQUIPMENT FACTORY CO., LTD., SHUNDE Effective date: 20030718 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20030718 Address after: No. 25, Ronggui Avenue, Shunde District, Guangdong, Foshan Patentee after: Guangdong Calandz Group Corp. Address before: Guangdong city of Shunde Province Guizhou Guangxi Road No. 328 Patentee before: Shunde Gelanshi Electric Appliance Factory Co., Ltd. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |