CN1523284A - Humidity sensing arrangement for microwave oven with vented fume hood - Google Patents
Humidity sensing arrangement for microwave oven with vented fume hood Download PDFInfo
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- CN1523284A CN1523284A CNA03104851XA CN03104851A CN1523284A CN 1523284 A CN1523284 A CN 1523284A CN A03104851X A CNA03104851X A CN A03104851XA CN 03104851 A CN03104851 A CN 03104851A CN 1523284 A CN1523284 A CN 1523284A
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- heating clamber
- air
- humidity
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- exhaust outlet
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Abstract
The present invention discloses a humidity preception device of microwaven oven with a ventilation cover. Said invention includes: upper cavity of heating chamber, exhaust motor component placed in the rear portion of upper cavity of heating chamber, exhaust hole palced near by exhaust motor component and communicated with the heating chamber, air inlet placed in the front of upper cavity of heating chamber and communicated with heating chamber and humidity sensor placed near by exhaust hole and used for determining humidity of exhausted air. In the described upper cavity of heating chamber an air channel for guiding air flow is set, and the humidity sensor Sb is placed on the air channel correspondent to upper portion of exhaust hole.
Description
Technical field
The present invention relates to a kind of micro-wave oven that has ventilator cowling, particularly a kind of humidity sensing device that is used to have the micro-wave oven of ventilator cowling.
Background technology
The micro-wave oven that has a ventilator cowling, can also be gone out the fume emission that the baking oven of micro-wave oven bottom produces except can utilizing heating using microwave food hereinafter to be referred as micro-wave oven.
As shown in Figure 1, the existing micro-wave oven that has ventilator cowling generally comprises: be used for heat food heating clamber 10 and be arranged on the electric control chamber 20 of the side of heating clamber 10.Be provided with electric component in the described electric control chamber 20, as be used for producing the magnetron 22 of microwave and to the step-up transformer 24 of magnetron 22 input power supply signals etc. to heating clamber 10 launched microwaves.
In order to make described magnetron 22 and step-up transformer 24 heat radiations, be provided with fan 26 on the top of electric control chamber 20, flow through magnetron 22 and step-up transformer 24 of the air stream that fan 26 produces makes its heat radiation, wherein portion of air stream flows into heating clamber 10 by the air inlet 10a on heating clamber 10 sidewalls, and the steam that heating clamber 10 produces in heating process is crossed the exhaust outlet 10b that is arranged in heating clamber 10 left side wall tops and discharged from the heating clamber of micro-wave oven along with this burst air communication.
The rear on described heating clamber 10 tops is provided with exhaust motor assembly 14, and the place ahead of described exhaust motor assembly 14 is provided with air duct 12.The bottom of micro-wave oven is provided with baking oven, and the flue gas that baking oven produces outwards emits through air duct 12 under the driving of exhaust motor assembly 14.
During micro-wave oven work, produce steam in the heated food,, can control the heating process of food by measuring the humidity of heating room air.The humidity sensor Sa that is used for measuring heating clamber inner air humidity is arranged on the corresponding position, top with described heating clamber exhaust outlet 10b, for example be arranged on the corresponding air duct 12 in the top of described exhaust outlet 10b in.
The shortcoming of the humidity sensing device of the above-mentioned micro-wave oven that is used to have ventilator cowling is: the air stream of discharging by described exhaust outlet 10b is because fan 26 drivings, therefore in order to measure the humidity of heating clamber 10 inner airs, fan 26 parts that are absolutely necessary can not omit.
In addition, in the inside of heating clamber 10, though air enters heating clamber by described air inlet 10a, if heating clamber 10 also has other slits, its inner steam just can not be all discharged by exhaust outlet, thus humidity sensor Sa to determine humidity just inaccurate.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the existing above-mentioned shortcoming in humidity sensing device ground that has the micro-wave oven of ventilator cowling, provides a kind of and both can reduce part count, can measure the humidity sensing device of heating clamber inner air humidity again exactly.
In order to solve described technical problem, the technical solution used in the present invention is: the humidity sensing device that the present invention is used to have the micro-wave oven of ventilator cowling comprises: heating clamber top cavity, be arranged on the rear portion of heating clamber top cavity the exhaust motor assembly, be arranged on exhaust outlet that exhaust motor assembly next door is communicated in heating clamber, air inlet that the front portion that is arranged on heating clamber top cavity is communicated in heating clamber, be arranged on exhaust outlet near be used for measuring the humidity sensor of discharging air humidity.
Be provided with in the cavity of described heating clamber top the guiding air flow away to air duct; Described humidity sensor be arranged on the corresponding air duct in exhaust outlet top on.
The invention has the beneficial effects as follows: the air in the micro-wave oven outwards discharging is more unobstructed, and the humidity of air humidity that is discharged from and heating clamber inner air is identical, so humidity sensor can determine the humidity of heating clamber inner air exactly.In addition, omit the fan that must be provided with in the prior art, reduced number of components, reduced cost.
Description of drawings
Fig. 1 is the existing microwave oven schematic diagram that has ventilator cowling;
Fig. 2 is applicable to the microwave oven structure schematic diagram that has ventilator cowling of the present invention;
Fig. 3 is the air duct structural representation that is provided with humidity sensor of the present invention;
Fig. 4 is that the air that is applicable to micro-wave oven of the present invention flows away to schematic diagram.
Among the figure:
20: heating clamber 21: heating clamber top cavity
22: exhaust outlet 24: air inlet
30: exhaust motor assembly 50: air duct
Sb: humidity sensor
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
As shown in Figure 2, the present invention's humidity sensing device of being used to have the micro-wave oven of ventilator cowling comprises: heating clamber top cavity 21, be arranged on the rear portion of heating clamber top cavity 21 exhaust motor assembly 30, be arranged on exhaust outlet 22 that exhaust motor assembly 30 next doors are communicated in heating clamber 20, air inlet 24 that the front portion that is arranged on heating clamber top cavity 21 is communicated in heating clamber 20, be arranged on exhaust outlet 22 near be used for measuring the humidity sensor Sb that discharges air humidity.
Be provided with in the cavity 21 of described heating clamber top the guiding air flow away to air duct 50; Described humidity sensor Sb be arranged on the corresponding air duct 50 in exhaust outlet 22 tops on.
In more detail, the left and right sides of described exhaust motor assembly 30 has one group of driven vane respectively, and the air of heating clamber 20 inside is exactly by these driven vane sucking-offs, formation air stream.
As shown in Figure 2, exhaust outlet 22 is made of a plurality of passages, when described exhaust motor assembly 30 is started working, can be by exhaust outlet 22 with the air sucking-off of heating clamber 20 inside, the air of discharging from exhaust outlet 22 passes through exhaust motor assembly 30 left sides to its inside of inflow, and then is discharged into the outside of micro-wave oven.
Because the present invention is by the air direct sucking-off of exhaust outlet 22 with heating clamber 20 inside, so can measure exactly from the humidity of the air of heating clamber 20 discharges.Described exhaust outlet 22 is located on the position (with exhaust motor assembly position adjacent) at relative rear of heating clamber top cavity 21, after the air of heating clamber inside was sucked out by exhaust outlet 22, extraneous air just can flow into heating clamber 20 by the air inlet 24 that is made of a plurality of passages on the anterior position that is arranged on heating clamber top cavity 21.Fig. 4 shows the trend of aforesaid air stream.
Under the driving of described exhaust motor assembly 30, extraneous air is inhaled in the heating clamber 20 by air inlet 24, and the air of heating clamber inside is sucked out by exhaust outlet 22 simultaneously, contains the steam that produces in heating process in the air that is sucked out certainly.
Only the air sucking-off of heating clamber 20 inside can be used for discharging air fan in the prior art so can omit among the present invention by exhaust motor assembly 30.And because the direct air of sucking-off heating clamber inside, so can accurately reflect the humidity of heating clamber inner air by the air of exhaust outlet 22 discharges.
The flow direction that enters the air of heating clamber top cavity 21 is accurately guided by air duct 50.Specifically, flowing into the heating clamber inner air by described air inlet 24, is to import by the air introducing port 52 that is formed on the air duct 50.
As shown in Figure 3, by the air of described exhaust outlet 22, be to derive to outlet 54 by the air that is formed on bottom, air duct 50 back side from heating clamber 20 inner discharges, arrive the outside of micro-wave oven then by the side discharge of exhaust motor assembly 30.
In the present invention, humidity sensor Sb be arranged on described exhaust outlet 22 near.Described humidity sensor Sb measures from the humidity of the inner air of discharging of heating clamber, and then provides information for the heating of food.As shown in Figure 2, humidity sensor Sb is arranged on the bottom of described air duct 50, since humidity sensor Sb that the position is set is corresponding with the positive top of exhaust outlet 22, so humidity sensor Sb of the present invention can accurately determine from the humidity of the air of heating clamber 20 inside discharges.
In addition, be applicable in the micro-wave oven of the present invention, be used for producing the magnetron 42 of microwave and the right side that step-up transformer 44 is arranged on described heating clamber 20 top cavitys 21.Magnetron 42 and step-up transformer 44 are also finished heat radiation by exhaust motor assembly 30.As shown in Figure 2, when being located at driven vane 34 rotation on right side of exhaust motor assembly 30, air can being blown on described step-up transformer 44 and the magnetron 42 and dispel the heat.
,, both can discharge to the outside air of discharging of micro-wave oven by described exhaust motor assembly 30, also can discharge from the rear portion of micro-wave oven from the top of micro-wave oven according to the difference that the position is set of exhaust motor assembly 30.
Claims (2)
1. humidity sensing device that is used to have the micro-wave oven of ventilator cowling is characterized in that: comprising: heating clamber top cavity (21`), be arranged on the rear portion of heating clamber top cavity (21) exhaust motor assembly (30), be arranged on exhaust outlet (22) that exhaust motor assembly (30) next door is communicated in heating clamber (20), air inlet (24) that the front portion that is arranged on heating clamber top cavity (21) is communicated in heating clamber (20), be arranged on exhaust outlet (22) near be used for measuring the humidity sensor (Sb) of discharging air humidity.
2. the humidity sensing device that is used to have the micro-wave oven of ventilator cowling according to claim 1 is characterized in that: be provided with in the described heating clamber top cavity (21) the guiding air flow away to air duct (50); Described humidity sensor (Sb) be arranged on the corresponding air duct in exhaust outlet (22) top (50) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA03104851XA CN1523284A (en) | 2003-02-21 | 2003-02-21 | Humidity sensing arrangement for microwave oven with vented fume hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA03104851XA CN1523284A (en) | 2003-02-21 | 2003-02-21 | Humidity sensing arrangement for microwave oven with vented fume hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1523284A true CN1523284A (en) | 2004-08-25 |
Family
ID=34282408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA03104851XA Pending CN1523284A (en) | 2003-02-21 | 2003-02-21 | Humidity sensing arrangement for microwave oven with vented fume hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1523284A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7992552B2 (en) | 2008-01-22 | 2011-08-09 | Sharp Kabushiki Kaisha | Cooking device |
| WO2017049619A1 (en) * | 2015-09-21 | 2017-03-30 | 广东美的厨房电器制造有限公司 | Microwave heating apparatus |
-
2003
- 2003-02-21 CN CNA03104851XA patent/CN1523284A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7992552B2 (en) | 2008-01-22 | 2011-08-09 | Sharp Kabushiki Kaisha | Cooking device |
| WO2017049619A1 (en) * | 2015-09-21 | 2017-03-30 | 广东美的厨房电器制造有限公司 | Microwave heating apparatus |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |