CN101839246A - Cooling fan structure of microwave oven - Google Patents
Cooling fan structure of microwave oven Download PDFInfo
- Publication number
- CN101839246A CN101839246A CN200910068187A CN200910068187A CN101839246A CN 101839246 A CN101839246 A CN 101839246A CN 200910068187 A CN200910068187 A CN 200910068187A CN 200910068187 A CN200910068187 A CN 200910068187A CN 101839246 A CN101839246 A CN 101839246A
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- fan
- stirling engine
- microwave oven
- heat
- cooling fan
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- 238000001816 cooling Methods 0.000 title claims abstract description 38
- 230000005855 radiation Effects 0.000 claims description 45
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 235000021168 barbecue Nutrition 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 235000013305 food Nutrition 0.000 description 10
- 230000005611 electricity Effects 0.000 description 7
- 238000010411 cooking Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The invention relates to a cooling fan structure of a microwave oven, which comprises a fan hub, a fan shaft, a shaft sleeve, blades and a fan support, the cooling fan structure also comprises a Stirling engine, the fan shaft can be driven by the Stirling engine to rotate, and the Stirling engine provides power for the cooling fan; a collector tube is arranged in a high heat area outside of the oven chamber of the microwave oven, and is connected with a heat-absorbing end of the Stirling engine through a heat-conducting tube, so that heat can be transferred to the Stirling engine, and thereby the Stirling engine can operate. The operation of the cooling fan completely depends on the heat generated by the circuit area of the oven chamber of the microwave oven, consequently, the heat energy which originally needs to be dissipated is converted into kinetic energy, and moreover, the kinetic energy drives the fan to rotate, so that the temperatures of a magnetron and a transformer can be reduced; the fan motor in the prior art is dispensed with, consequently, the overall energy consumption of the microwave oven is reduced, the cooling capability is enhanced, and the production cost of the microwave oven is reduced.
Description
Technical field
The invention belongs to the technical field of microwave oven, be specifically related to a kind ofly be driven by Stirling engine, the heat that circuit region produces when making full use of microwave oven work drives the cooling fan structure of the microwave oven of fan work.
Technical background
Microwave oven is that magnetron produces microwave behind power connection, and these microwave irradiations on heated objects such as food and the device of cooking food.Such microwave oven can be divided into home-use microwave oven that is equipped with small-sized magnetron and the commerce microwave oven that is equipped with large-scale or a plurality of magnetrons.Microwave oven can also be divided into home-use microwave oven according to the mode of heat food and generally adopt rotation to fill the glass rotating disk mode of food, and commerce mainly adopts the figure of confusion mode of scattered radiation microwave with microwave oven.Commercial mainly be applicable to the convenience store that utilization rate is high and the Food Store of cooking food at short notice, so generally need the high relatively output of more home-use microwave oven with microwave oven.
Fig. 1 is the microwave oven structure schematic representation; Fig. 2 is the schematic representation of cooling fan structure of the microwave oven of prior art; Fig. 3 is the side view of cooling fan structure of the microwave oven of prior art.
As shown in Figure 1 to Figure 3, microwave oven comprises by the shell that forms outward appearance, furnace chamber 20 and is positioned at the electricity storage chamber 30 of furnace chamber 20 right side sides, also comprises the door 40 that is located at furnace chamber 20 fronts.Shell forms the microwave oven outward appearance, also plays the effect of the inner furnace chamber 20 of protection simultaneously, so shell generally will be made of the steel plate with certain intensity.Shell comprises the rear board 17 at the base plate 13 below the top plate 11 of the top and bi-side that cover furnace chamber 20 simultaneously, protection, the front panel 15 that forms furnace chamber 20 fronts and protection furnace chamber 20 back sides.Furnace chamber 20 is spaces of cooking such as cooking food thing, constitutes the food after both can having put into food and take out the cooking from opening the place ahead of furnace chamber 20 by the tetragonal chest of front openings.There is certain space the right side side of furnace chamber 20, and this space is to be the electricity storage chamber 30 that electronic unit is set, and electricity storage chamber 30 inside are provided with a plurality of electronic units such as transformer 31, magnetron 33, capacitor 37.Be provided with control panel assembly 26 in the front of electricity storage chamber 30.
In addition, the inside of electricity storage chamber 30 is provided with demarcation strip 39 between transformer 31 and radiation fan 35.Transformer 31, radiation fan 35, capacitor 37 and demarcation strip 39 be fixed on sub-panel above.Between sub-panel and base plate 13 top at intervals.
In a plurality of electronic units, transformer 31 and magnetron 33 produce the microwave of irradiation furnace chamber 20 inside.Electronic unit generates heat in the process that produces microwave, so in the time of cooking food, the temperature of electricity storage chamber 30 rises.Need to suck outside air for the electricity storage chamber 30 of cooling off heating, so radiation fan 35 sucks outside air.
In the cooling fan structure of the microwave oven of prior art, fan hub 351 is arranged on the position, center of radiation fan, leaves axis hole and forms the main body of outdoor fan; Axle sleeve 352 is outwards outstanding with the concyclic heart of fan hub and one-body molded while, and axle sleeve surrounds axis hole and holds the fan attachment motor shaft; Fan blade 353 is arranged at the outer circumferential face of fan hub radially, has identical windup-degree, makes air flows produce air-flow when rotated; Blower tray 354 supports radiation fan, and makes radiation fan be fixed on rotation in the mounting point; The air guide hole 355 of tubular structure is arranged on the blower tray, around the aperture position of blower tray corresponding to radiation fan, and forms the passage that guides air flows.
But, there is following problem in the prior art:
In the prior art in the cooling fan structure of microwave oven, the rotation of radiation fan all is to be driven by independent fan electromotor, independent fan electromotor select the cost of production that has improved microwave oven for use, and the running of motor needs microwave oven to provide extra circuit support to it, it is complicated more that the internal wiring of microwave oven is arranged, and needs consume electric power during use equally.And motor can produce noise, the noise increase that causes microwave oven externally to be exported when rotated when operation.
Summary of the invention
The present invention provides a kind of by the Stirling engine driving for solving the technical problem that exists in the prior art, and the heat that circuit region produces when making full use of microwave oven work drives the cooling fan structure of the microwave oven of fan work.
The technological scheme that the present invention takes for the technical problem that exists in the solution prior art is:
The cooling fan structure of microwave oven of the present invention comprises: fan hub, be arranged on the position, center of radiation fan, and leave axis hole and form the main body of fan; Fan shaft is fixed and drives the radiation fan rotation with radiation fan; Axle sleeve, outwards outstanding with the concyclic heart of fan hub and one-body molded while, axle sleeve surrounds axis hole and holds the fan attachment axle; Fan blade is arranged at the outer circumferential face of fan hub radially, has identical windup-degree, makes air flows produce air-flow when rotated; Blower tray supports radiation fan, and makes radiation fan be fixed on rotation in the mounting point, also comprises Stirling engine in the cooling fan structure, and fan shaft rotates under the driving of Stirling engine, and radiation fan provides power by Stirling engine; High heating region in the micro-wave oven furnace chamber outside is provided with heat collecting pipe, by heat conductive tube heat collecting pipe is connected with the heat absorbing end of Stirling engine, thereby the heat transferred Stirling engine, and make its running.
The present invention can also adopt following technical measures:
Described fan shaft is fixed on the blower tray, and on fan shaft follower is set, and follower is connected by transmission device with driving wheel on the Stirling engine, and fan shaft rotates thereupon when Stirling engine turns round.
Be connected by belt transmission between follower on the described fan shaft and the driving wheel of Stirling engine.
Described Stirling engine is fixed on the blower tray of radiation fan.
The barbecue that the heat collecting pipe of described collection heat is arranged on outside the micro-wave oven furnace chamber covers.
Described heat conductive tube closely is wrapped in the heat absorbing end outside of Stirling engine.
Advantage and good effect that the present invention has are:
In the cooling fan structure of microwave oven of the present invention, Stirling engine is set on blower tray, high heating region in the micro-wave oven furnace chamber outside is provided with heat collecting pipe simultaneously, by heat conductive tube heat collecting pipe is connected with the heat absorbing end of Stirling engine, thereby the heat transferred Stirling engine, Stirling engine running and the rotation of drive radiation fan under the effect of heat are for the parts of cabinet inside are lowered the temperature.The work of radiation fan in the present invention is fixed against the heat that the micro-wave oven furnace chamber circuit region is produced fully, this part conversion of heat into kinetic energy that originally need be dispersed, and by this part kinetic energy drive fan rotation the temperature of magnetron and transformer is reduced again, fan electromotor parts of the prior art have been cancelled, the overall energy consumption of microwave oven is reduced, heat dissipation potential strengthens, and has reduced the cost during microwave oven is produced.In addition, in the rotary course of radiation fan, can't produce bigger noise, make microwave oven when operation, keep relatively quietly working state, do not need to relate to complicated circuit setting in the Stirling engine, make the operation of microwave oven safer, reduce the rate of breakdown of microwave oven radiation fan part, guaranteed the reliability of microwave oven.
Description of drawings
Fig. 1 is the microwave oven structure schematic representation;
Fig. 2 is the schematic representation of cooling fan structure of the microwave oven of prior art;
Fig. 3 is the side view of cooling fan structure of the microwave oven of prior art;
Fig. 4 is the schematic representation of the cooling fan structure of microwave oven of the present invention;
Fig. 5 is the schematic representation that position be set of cooling fan structure in microwave oven of microwave oven of the present invention;
Fig. 6 is the partial enlarged drawing of Stirling engine and radiation fan in the cooling fan structure of microwave oven of the present invention;
Fig. 7 is the structural representation of Stirling engine in the cooling fan structure of microwave oven of the present invention.
Embodiment
It is following that the present invention is described in detail with reference to drawings and Examples:
Fig. 4 is the schematic representation of the cooling fan structure of microwave oven of the present invention; Fig. 5 is the schematic representation that position be set of cooling fan structure in microwave oven of microwave oven of the present invention; Fig. 6 is the partial enlarged drawing of Stirling engine and radiation fan in the cooling fan structure of microwave oven of the present invention; Fig. 7 is the structural representation of Stirling engine in the cooling fan structure of microwave oven of the present invention.
To shown in Figure 7, in the cooling fan structure of microwave oven of the present invention, fan hub 351 is arranged on the position, center of radiation fan 35 as Fig. 4, leaves axis hole and forms the main body of fan; The radiation fan rotation is fixed and driven to fan shaft and radiation fan; Axle sleeve (not shown) is outwards outstanding with the concyclic heart of fan hub and one-body molded while, and axle sleeve surrounds axis hole and holds the fan attachment motor shaft; Fan blade is arranged at the outer circumferential face of fan hub radially, has identical windup-degree, makes air flows produce air-flow when rotated, and 353 of each fan blade are equally spaced.On the fan blade between the front and rear edge of a certain position length do not conform to single curve apart from the relation between the length of Fan axial center in the position therewith, but be repeatedly curvilinear motion, the top of fan blade curves the formation circular arc to the inlet side of fan direction, in the curve on the top of fan blade a part, thereby further improved the air draft ability of fan for circle; Blower tray supports radiation fan, and make radiation fan be fixed on rotation in the mounting point, the diameter of mounting point is the 8-10 millimeter greater than the diameter of fan on the blower tray, if the diameter difference of mounting point and fan blade is too small on the blower tray 354, will produce bigger gas current friction noise in both spaces during the radiation fan rotation, if the diameter difference of mounting point and fan blade is excessive on the blower tray, thereby will cause air inlet to leak flow velocity and the flow that has influence on air, the leading edge of radiation fan is outstanding 3-5 millimeter outside blower tray, can further improve the air output of radiation fan.
Also comprise Stirling engine 60 in the cooling fan structure, fan shaft rotates under the driving of Stirling engine, and radiation fan provides power by Stirling engine; High heating region in the micro-wave oven furnace chamber outside is provided with heat collecting pipe, by heat conductive tube heat collecting pipe is connected with the heat absorbing end of Stirling engine, thereby the heat transferred Stirling engine, and make the Stirling engine continuous running.
Stirling engine is made of heat absorbing end 61, release end of heat 62 and driving wheel 63, and when heat conductive tube arrived heat absorbing end with heat transfer, the Stirling engine gas inside expanded and promotes the driving wheel rotation.
Fan shaft is fixed on the blower tray, and follower 64 is set on fan shaft, and follower is connected by transmission device with driving wheel on the Stirling engine, and fan shaft rotates thereupon when Stirling engine turns round.
Be connected by belt transmission between follower on the fan shaft and the driving wheel of Stirling engine.The bel-drivenn advantage just is that the surface area towards the wind face of belt 65 is less, can have influence on the circulation of air hardly, as adopt gear transmission then will plan the relative position of fan shaft and Stirling engine again, and shelter from the air channel to avoid gear, have influence on the ventilation ability of radiation fan.
Stirling engine is fixed on the blower tray of radiation fan, makes Stirling engine be called a part in the cooling fan structure, also helps power more by the transmission of Stirling engine to radiation fan simultaneously.
The heat that covers on 66 is relatively concentrated and temperature is higher owing to roast in the microwave oven, and the barbecue that the heat collecting pipe 67 of collection heat can be arranged on outside the micro-wave oven furnace chamber covers.But heat collecting pipe that the position is set is not unique, can heat collecting pipe be set flexibly according to the various different structures of different microwave ovens, the difference that the mounting type of heat collecting pipe equally also can be as the case may be and make corresponding adjustment and change.
Heat conductive tube 68 closely is wrapped in the heat absorbing end outside of Stirling engine, makes being heated of Stirling engine more even, and can acquire enough heat energy on heat conductive tube, thereby drive the motor continuous running.
In the cooling fan structure of microwave oven of the present invention, Stirling engine is set on blower tray, high heating region in the micro-wave oven furnace chamber outside is provided with heat collecting pipe simultaneously, by heat conductive tube heat collecting pipe is connected with the heat absorbing end of Stirling engine, thereby the heat transferred Stirling engine, Stirling engine running and the rotation of drive radiation fan under the effect of heat are for the magnetron 33 and the transformer 31 of cabinet inside are lowered the temperature.The work of radiation fan in the present invention is fixed against the heat that the micro-wave oven furnace chamber circuit region is produced fully, this part conversion of heat into kinetic energy that originally need be dispersed, and by this part kinetic energy drive fan rotation the temperature of magnetron and transformer is reduced again, fan electromotor parts of the prior art have been cancelled, the overall energy consumption of microwave oven is reduced, heat dissipation potential strengthens, and has reduced the cost during microwave oven is produced.In addition, in the rotary course of radiation fan, can't produce bigger noise, make microwave oven when operation, keep relatively quietly working state, do not need to relate to complicated circuit setting in the Stirling engine, make the operation of microwave oven safer, reduce the rate of breakdown of microwave oven radiation fan part, guaranteed the reliability of microwave oven.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention with preferred embodiment openly as above, yet, be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, be the content that does not break away from technical solution of the present invention in every case, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all belong in the scope of technical solution of the present invention.
Claims (6)
1. the cooling fan structure of a microwave oven comprises: fan hub, be arranged on the position, center of radiation fan, and leave axis hole and form the main body of fan; Fan shaft is fixed and drives the radiation fan rotation with radiation fan; Axle sleeve, outwards outstanding with the concyclic heart of fan hub and one-body molded while, axle sleeve surrounds axis hole and holds the fan attachment axle; Fan blade is arranged at the outer circumferential face of fan hub radially, has identical windup-degree, makes air flows produce air-flow when rotated; Blower tray, support radiation fan, and make radiation fan be fixed on rotation in the mounting point, it is characterized in that: also comprise Stirling engine in the cooling fan structure, fan shaft rotates under the driving of Stirling engine, and radiation fan provides power by Stirling engine; High heating region in the micro-wave oven furnace chamber outside is provided with heat collecting pipe, by heat conductive tube heat collecting pipe is connected with the heat absorbing end of Stirling engine, thereby the heat transferred Stirling engine, and make its running.
2. the cooling fan structure of microwave oven according to claim 1, it is characterized in that: fan shaft is fixed on the blower tray, and follower is set on fan shaft, follower is connected by transmission device with driving wheel on the Stirling engine, and fan shaft rotates thereupon when Stirling engine turns round.
3. the cooling fan structure of microwave oven according to claim 2 is characterized in that: be connected by belt transmission between the follower on the fan shaft and the driving wheel of Stirling engine.
4. the cooling fan structure of microwave oven according to claim 1, it is characterized in that: Stirling engine is fixed on the blower tray of radiation fan.
5. the cooling fan structure of microwave oven according to claim 1 is characterized in that: gather the barbecue that the heat collecting pipe of heat is arranged on outside the micro-wave oven furnace chamber and cover.
6. the cooling fan structure of microwave oven according to claim 1 is characterized in that: heat conductive tube closely is wrapped in the heat absorbing end outside of Stirling engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910068187A CN101839246A (en) | 2009-03-19 | 2009-03-19 | Cooling fan structure of microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910068187A CN101839246A (en) | 2009-03-19 | 2009-03-19 | Cooling fan structure of microwave oven |
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| Publication Number | Publication Date |
|---|---|
| CN101839246A true CN101839246A (en) | 2010-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910068187A Pending CN101839246A (en) | 2009-03-19 | 2009-03-19 | Cooling fan structure of microwave oven |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562197A (en) * | 2010-12-09 | 2012-07-11 | 李昌福 | Large-sized LED power generation assembly |
| JP2012198014A (en) * | 2011-03-22 | 2012-10-18 | Boeing Co:The | Heat exchanger using stirling engine and method related thereto |
| CN105875289A (en) * | 2016-05-05 | 2016-08-24 | 杨志恒 | Portable flowering plant heating fan |
| CN106762716A (en) * | 2016-12-19 | 2017-05-31 | 西安易朴通讯技术有限公司 | A kind of chamber flow heat dissipation device |
| CN112877910A (en) * | 2021-01-14 | 2021-06-01 | 宁波文泽机电技术开发有限公司 | Processing system and processing method for melt-blown non-woven fabric |
-
2009
- 2009-03-19 CN CN200910068187A patent/CN101839246A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562197A (en) * | 2010-12-09 | 2012-07-11 | 李昌福 | Large-sized LED power generation assembly |
| JP2012198014A (en) * | 2011-03-22 | 2012-10-18 | Boeing Co:The | Heat exchanger using stirling engine and method related thereto |
| CN105875289A (en) * | 2016-05-05 | 2016-08-24 | 杨志恒 | Portable flowering plant heating fan |
| CN106762716A (en) * | 2016-12-19 | 2017-05-31 | 西安易朴通讯技术有限公司 | A kind of chamber flow heat dissipation device |
| CN112877910A (en) * | 2021-01-14 | 2021-06-01 | 宁波文泽机电技术开发有限公司 | Processing system and processing method for melt-blown non-woven fabric |
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Application publication date: 20100922 |