CN1273772C - Air circulation device for heating-cavity of microwave oven - Google Patents
Air circulation device for heating-cavity of microwave oven Download PDFInfo
- Publication number
- CN1273772C CN1273772C CN 02123613 CN02123613A CN1273772C CN 1273772 C CN1273772 C CN 1273772C CN 02123613 CN02123613 CN 02123613 CN 02123613 A CN02123613 A CN 02123613A CN 1273772 C CN1273772 C CN 1273772C
- Authority
- CN
- China
- Prior art keywords
- air
- mentioned
- heating clamber
- heating
- fan assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Constitution Of High-Frequency Heating (AREA)
- Electric Ovens (AREA)
Abstract
The present invention relates to an air circulation device for a heating chamber of s microwave oven, which comprises an inner cavity 30, a cooling fan assembly 50 and a circulation fan assembly 62. In the present invention, air circulation from top to bottom is formed in a heating chamber 32 inside the inner cavity 30 to prevent moisture from coagulating inside a door 33. Thus, a plurality of air inlet holes 38 are arranged at the front end of an upper plate 36 forming the upper surface of the inner cavity 30. Ai absorbed by the cooling fan assembly 50 cools electronic components such as a magnetron, etc. On the other hand, the circulation fan assembly 62 causing internal air to circulate and flow is arranged in the heating chamber 32. The circulation fan assembly 62 transfers heat in a heater 61 into the heating chamber 32. Thus, a discharge port 67 is arranged on the heater corresponding to the upper plate 36, and a suction port 65 is arranged on the circulation fan assembly 62 corresponding to the upper plate 36. The present invention can prevent the moisture formed during heating from coagulating inside the door 33 of the heating chamber.
Description
Technical field
The present invention relates to the air circulation device of the heating chamber for microwave oven in the micro-wave oven of a kind of electric furnace field, particularly relate to and a kind ofly utilize this device, the door the inside of its heating clamber air circulation device of heating chamber for microwave oven of moisture that can not condense in heating process at the inner air-flow that forms of heating clamber.
Background technology
Micro-wave oven is to utilize electric energy to produce microwave, uses the device of heating using microwave food then.The water vapour that produces in the micro-wave oven when getting rid of heat food provides a kind of gas flow means in the heating clamber domestic demand.
See also Fig. 1, shown in Figure 2, Fig. 1 is the structural representation of the air circulation device of existing heating chamber for microwave oven, and Fig. 2 is the air circulation device part-structure and the air flow schematic diagram of existing heating chamber for microwave oven.
As shown in Figure 1 and Figure 2, above-mentioned existing micro-wave oven, the heating clamber 1 of its heat food is arranged in the microwave cavity 3, separates with the external world by door 2.One side of above-mentioned inner chamber 3 is provided with electric apparatus room 5, installs in it and is provided with transformer 7 and magnetron 9.
Above-mentioned transformer 7 and magnetron 9 produce a large amount of heat when work, therefore need to be provided with the cooling fan 11 that plays thermolysis.Some then enters heating clamber 1 inside air-flow cooling magnetron 9 backs that above-mentioned cooling fan 11 produces.
The air current flow path that enters heating clamber 1 inside is as follows.Shown in arrow among Fig. 2, air passes through ventilation shaft 15 inside on magnetron 9 next doors again by after the above-mentioned magnetron 9, flow into heating clamber 1 again by a plurality of passages that are provided with on the sidewall 13 between above-mentioned electric apparatus room 5 and the heating clamber 1.Flow into the air of this heating clamber 1 inside and water vapour that heat food is produced are discharged to heating clamber 1 together by the exhaust portion 17 of inner chamber one side outside.
But the air circulation device of above-mentioned existing heating chamber for microwave oven has following problem:
As shown in Figure 2, the air that enters into above-mentioned heating clamber inside flows to its rear end, left side from the right side front end of heating clamber inside.Like this, above-mentioned air just can not flow on the shop front of heating clamber shown in Fig. 2 A, so a lot of globules can be formed in the a-quadrant of above-mentioned door the inside in heating process, makes the people can't see heating clamber inside clearly.
And aforesaid air-flow also need be installed ventilation shaft 15 and can select to open and close the damper of ventilation shaft 15 in electric apparatus room, and the cost that causes making micro-wave oven increases.
This shows that the air circulation device of above-mentioned existing heating chamber for microwave oven has many defectives, for example air-flow can't flow to some zone of an inboard and multiple component was set and make product cost raising etc., and the assistant officer treats further to be improved.
The problem that exists for the air circulation device that solves heating chamber for microwave oven, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that the air circulation device of above-mentioned existing heating chamber for microwave oven exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, actively studied innovation, drive unit in the hope of the stirring fan of microwave oven of founding a kind of new structure, can improve the general driving device structure of the stirring fan of microwave oven of existing routine on the market, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Main purpose of the present invention is, overcome the defective of the air circulation device existence of existing heating chamber for microwave oven, and a kind of air circulation device of heating chamber for microwave oven of new structure is provided, technical problem underlying to be solved is to be such that it will prevent the inboard of the door for microwave oven moisture that condenses.
Another object of the present invention is to, a kind of air circulation device of heating chamber for microwave oven is provided, technical problem to be solved is to make it can provide air to the front end of heating clamber inside under the prerequisite that the additional zero parts are not set, and can remove the water vapour of heating clamber inside.
Purpose of the present invention and to solve its technical problem underlying be to adopt following technical scheme to realize.The air circulation device of the heating chamber for microwave oven that proposes according to the present invention, it comprises the inner chamber 30 that its inside is provided with the heating clamber 32 that opened and closed by door 33 controls and is provided with the air ostium 38 below air is provided at its heating clamber 32 top front ends corresponding to above-mentioned door 33 the insides; Cool off the electronic unit on above-mentioned inner chamber 30 tops, and the cooling fan assembly 50 of air-flow is provided from above-mentioned air ostium 38; And be located at above-mentioned inner chamber 30 tops, make air form the circulating fan assembly 62 of heating clamber inner air circulation to outlet 67 from the suction inlet 65 of above-mentioned heating clamber 32 inside.
The object of the invention to solve the technical problems can also adopt following technical measures further to realize.
The air circulation device of aforesaid heating chamber for microwave oven, wherein said air ostium 38 has several, all is arranged on the front position of above-mentioned inner chamber 30 upper plates 36.
The air circulation device of aforesaid heating chamber for microwave oven, wherein said circulating fan assembly 62 provides to the air of heating clamber 32 with by above-mentioned air ostium 38 leaked-in airs and can not mix, and makes it the circulating fan assembly 62 of each self-forming circulating current.
The air circulation device of aforesaid heating chamber for microwave oven, proceeds posterolateral is provided with the exhaust portion that the heating clamber inner air is discharged to the outside in the wherein said heating clamber 32.
The air circulation device of heating chamber for microwave oven of the present invention compared with prior art has tangible advantage and good effect.By above technical scheme as can be known, the air circulation device of heating chamber for microwave oven of the present invention, it comprises inner chamber 30, cooling fan assembly 50 and circulating fan assembly 62.In the heating clamber 32 of inner chamber 30 inside, form the air circulation from top to the bottom, with this moisture that can prevent to condense in door 33 the insides.Therefore, upper plate 36 front ends on form inner chamber 30 are provided with a plurality of air ostiums 38.Cooling fan assembly 50 inhaled airs cool off electronic units such as magnetrons.On the other hand, at heating clamber the circulating fan assembly 62 that inner air is circulated is arranged for 32 li, this circulating fan assembly 62 is delivered to the heat of heater 61 by air-flow the inside of heating clamber 32.At the pairing upper plate of heater 36 positions outlet 67 is set for this reason, suction inlet 65 is set at circulating fan assembly 62 pairing upper plates 36 positions.The present invention of said structure can prevent that formed moisture condenses in door 33 the insides of heating clamber in heating process.
Therefore, the advantage of the air circulation device of heating chamber for microwave oven of the present invention as previously discussed is at door 33 inner faces that the control heating clamber the opens and closes globule that can not condense.In addition, the cooling fan assembly of cooling electronic components produces the air-flow that flows to the lower end from upper end, door the inside, and therefore not needing to be provided with in addition other parts also can provide air to heating clamber inside.Microwave oven component can be reduced like this, thereby the production cost of micro-wave oven can be reduced.
In sum, the air circulation device of the heating chamber for microwave oven of special construction of the present invention, the inboard that can effectively the prevent door for microwave oven moisture that condenses, and it can provide air to the front end of heating clamber inside under the prerequisite that the additional zero parts are not set, and can remove the water vapour of heating clamber inside.It has above-mentioned many advantages and practical value, no matter structurally or bigger improvement is all arranged on the function, have large improvement technically, and produced handy and practical effect, and has the effect of enhancement really, thereby being suitable for practicality more, and not seeing have similar structural design to publish or use in like product, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the structural representation of the air circulation device of prior art heating chamber for microwave oven.
Fig. 2 is the part-structure and the air flow schematic diagram of the air circulation device of prior art heating chamber for microwave oven.
Fig. 3 is the air circulation apparatus structure schematic diagram of heating chamber for microwave oven of the present invention.
Fig. 4 is the part-structure and the air flow schematic diagram of the air circulation device of heating chamber for microwave oven of the present invention.
Fig. 5 is the air flow condition figure in the heating chamber for microwave oven of the present invention.
1...... heating clamber 2...... door
3...... inner chamber 5...... electric apparatus room
7...... transformer 9...... magnetron
11...... cooling fan 13...... sidewall
15...... ventilation shaft 17...... exhaust portion
30...... inner chamber 32...... heating clamber
33...... door 34...... header board
35...... back plate 36...... upper plate
38...... air ostium 40...... magnetron
42...... transformer 50...... cooling fan assembly
60...... heater housing 61...... heater
62...... circulating fan assembly 65...... suction inlet
67...... outlet
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the present invention proposes the specific embodiment, structure, feature and the effect thereof of the air circulation device of heating chamber for microwave oven to foundation, describe in detail as after.
See also Fig. 3, Fig. 4 and Fig. 5, Fig. 3 is the air circulation apparatus structure schematic diagram of heating chamber for microwave oven of the present invention.Fig. 4 is the air circulation device part-structure and the air flow schematic diagram of heating chamber for microwave oven of the present invention.Fig. 5 is the air flow condition figure in the heating chamber for microwave oven of the present invention.
Shown in above figure, the air circulation device of heating chamber for microwave oven of the present invention is formed the main internal structure of micro-wave oven by inner chamber 30, is made of the surface structure of micro-wave oven the outer container (not shown).
Above-mentioned inner chamber 30 inside are provided with heating clamber 32.Above-mentioned heating clamber 32 separates with the external world by door 33, can select as required to open and close.Above-mentioned door 33 is closed the back just can prevent that electromagnetic wave is leaked to the micro-wave oven outside in heating process.Above-mentioned heating clamber 32 inwalls one side is provided with the exhaust portion (not shown) of outside discharging heating clamber internal water steam.
There is header board 34 above-mentioned inner chamber 30 front portions, and these header board 34 central authorities are provided with the quadrangle through hole that forms heating clamber 32 inlets, and above-mentioned ingress edge and an above-mentioned door the inside edge butt joint cooperate, and back plate 35 is the back side of above-mentioned inner chamber 30, upper plate 36 be inner chamber above.
A plurality of air ostiums 38 are arranged on the upper plate 36 of above-mentioned inner chamber 30.Above-mentioned ostium 38 has several, all along the front end setting of upper plate 36, just is arranged on the position that above-mentioned upper plate is connected with above-mentioned header board.Air flow to and the corresponding part in above-mentioned heating clamber 32 inlet upper ends by above-mentioned air ostium 38.
Above-mentioned upper plate 36 is provided with electronic unit.At first, provide the magnetron 40 of thermal source to be installed in a side of upper plate 36 to heating thing launched microwave.Secondly transformer 42 to magnetron output high voltage source is installed on above-mentioned magnetron 40 next doors.
In addition, cooling fan assembly 50 is installed on the close position of above-mentioned upper plate 36 1 ends and magnetron 40 and transformer 42 correspondences.A plurality of cooling fans of motor-driven of above-mentioned cooling fan assembly 50 usefulness are carried the cooling air to above-mentioned magnetron 40 and transformer 42.
Next installs the equipment to the inner heat supply of heating clamber on above-mentioned upper plate 36.Heater housing 60 the insides that are arranged on the above-mentioned upper plate 36 are provided with heater 61, can be with Halogen lamp LED as this type of heater.
As shown in Figure 4, a side of above-mentioned heater housing 60 being installed at upper plate 36 is equipped with circulating fan assembly 62.Above-mentioned circulating fan assembly 62 turns back to heating clamber after the air of above-mentioned heating clamber 32 inside is drawn onto above-mentioned heater 61 again.Therefore, the inner chamber upper board part that above-mentioned circulating fan assembly 62 is installed is provided with suction inlet 65, and the upper board part that above-mentioned heater 61 is installed is provided with outlet 67.
Describe in detail below and have the operative scenario and the effect of the heating chamber for microwave oven air circulation device of the present invention of structure as mentioned above.
Put food into heating clamber 32, select heating condition, send the heating instruction, above-mentioned magnetron 40 is to above-mentioned heating clamber 32 internal emission electromagnetic waves.Above-mentioned electromagnetic wave heats the food of heating clamber 32 inside.
At this moment, above-mentioned cooling fan assembly 50 starts, and sucks air outside, and magnetron 40 and the transformer 42 that is arranged on the upper plate 36 cooled off.That is to say that the air that above-mentioned cooling fan assembly 50 is discharged flows to above-mentioned magnetron 40 and transformer 42 directions from an end on above-mentioned inner chamber top.
The air of discharging from above-mentioned cooling fan assembly 50 flows along upper plate 36, and enters above-mentioned heating clamber 32 inside by above-mentioned air ostium 38.Because above-mentioned air ostium 38 is provided with along last front edge of board, so flow to heating clamber 32 front ends of door 33 the insides by the air of above-mentioned air ostium 38.Above-mentioned air moves to the lower end from the upper end of door 33 the insides and the inside by above-mentioned door 33 shown in Fig. 5 A direction of arrow.The water vapour that produces in the time of can preventing heat food like this contacts with above-mentioned door 33 the insides.
Above-mentioned circulating fan assembly 62 drives circulating of above-mentioned heating clamber 32 central interior air.Shown in Fig. 5 B direction of arrow, air forms after above-mentioned outlet 67 flows into heating clamber in above-mentioned heating clamber 32 central interior and flows out heating clamber circulating through above-mentioned outlet 67 inflow heating clambers again through above-mentioned suction inlet 65 again.
Aforesaid air circulation preferably produces water vapour starting point to start with from magnetron emission electromagnetic wave.Therefore, start above-mentioned circulating fan assembly 62 beginning to heat and produce on the starting point of water vapour, make the air of heating clamber inside 32 begin to flow.This moment, above-mentioned door 33 the insides were arrived to a certain degree by heating using microwave, and the air themperature of circulation heating clamber inside and a door temperature inside are more or less the same, so be not easy to form the globule in the door the inside.
The heating process of the driving of above-mentioned circulating fan assembly 62 and above-mentioned heater is irrelevant, and it just produces inner air circulation when utilizing microwave to heat.
In addition, the portion of air of above-mentioned heating clamber 32 inside circulates shown in Fig. 5 C arrow, is discharged to beyond the heating clamber by exhaust portion.Make peace identical greatly by the air capacity that above-mentioned exhaust portion is discharged by above-mentioned air inflow aperture leaked-in air amount.The air of discharging by above-mentioned exhaust portion this moment has been taken away moisture when the heating clamber inner loop.
As mentioned above, the effect of heating chamber for microwave oven air circulation device of the present invention is to prevent to control door the inside that heating clamber the opens and closes globule that condenses.The air of cooling electronic components enters heating clamber inside, and the upper end inside door flow to the lower end.Like this, air circulation is by all parts of door the inside, so the globule that can not condense in the door the inside.And, utilize the circulating fan assembly at the inner air-flow that forms of heating clamber, then can not flow near the door adding the water vapour of pining for producing.Like this, the present invention can not make and add the hydrogenesis pining for producing in the door the inside.
The cooling fan assembly of cooling electronic components produces the air-flow that flows to the lower end from upper end, door the inside.This air-flow is to realize by the air ostium is set on the heating clamber front position in corresponding to the inner chamber upper plate, and therefore need not to establish in addition other parts just can provide air to heating clamber inside.Can reduce microwave oven component like this, thereby save the production cost of micro-wave oven.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, but every technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (4)
1, a kind of air circulation device of heating chamber for microwave oven comprises an air suction inlet, and one is arranged on the outlet of heating clamber one side, and a fan component discharges inhaled air by outlet, it is characterized in that it also comprises:
Its inside is provided with by the heating clamber (32) of door (33) control switching and at its heating clamber (32) top front end corresponding to above-mentioned door (33) the inside and is provided with air ostium (38), and the inner chamber (30) that air is provided to below heating clamber (32) by this air ostium (38); Cool off the electronic unit on above-mentioned inner chamber (30) top, the cooling fan assembly (50) that is arranged on upper plate (36) one sides provides air-flow for above-mentioned air ostium (38); And
Be located at above-mentioned inner chamber (30) top, make air be arranged on the suction inlet (65) of inner chamber upper plate from above-mentioned heating clamber (32) inside to being arranged on the circulating fan assembly (62) that upper plate outlet (67) partly forms heating clamber inner air circulation.
2, the air circulation device of heating chamber for microwave oven according to claim 1 is characterized in that described air ostium (38) has several, all is arranged on the front position of above-mentioned inner chamber (30) upper plate (36).
3, the air circulation device of heating chamber for microwave oven according to claim 1 and 2, after it is characterized in that suction inlet that the inner chamber upper plate of wherein said circulating fan assembly (62) air that heating clamber (32) is inner by this circulating fan assembly (62) partly is provided with is drawn into above-mentioned heater (61), the outlet (67) of the upper plate part by heater (61) turns back to heating clamber (32) inside again.
4, the air circulation device of heating chamber for microwave oven according to claim 3 is characterized in that the interior proceeds posterolateral of described heating clamber (32) is provided with the exhaust portion that a heating clamber (32) inner air is discharged to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02123613 CN1273772C (en) | 2002-07-04 | 2002-07-04 | Air circulation device for heating-cavity of microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02123613 CN1273772C (en) | 2002-07-04 | 2002-07-04 | Air circulation device for heating-cavity of microwave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1465893A CN1465893A (en) | 2004-01-07 |
| CN1273772C true CN1273772C (en) | 2006-09-06 |
Family
ID=34142409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02123613 Expired - Fee Related CN1273772C (en) | 2002-07-04 | 2002-07-04 | Air circulation device for heating-cavity of microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1273772C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100513881C (en) * | 2004-07-26 | 2009-07-15 | 乐金电子(天津)电器有限公司 | Well-ventilated type microwave oven |
-
2002
- 2002-07-04 CN CN 02123613 patent/CN1273772C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1465893A (en) | 2004-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1159552C (en) | Heater of microwave oven | |
| CN1250912C (en) | Wall microwave oven | |
| CN1507783A (en) | Electric-roasting oven | |
| CN1147679C (en) | Convection-fan controlling method for microwave oven | |
| CN1159550C (en) | Microwav eoven heater system | |
| CN1201118C (en) | Cooling apparatus for microwave oven having lighting lamps | |
| CN1356500A (en) | Heater of microwave oven | |
| CN1159548C (en) | Apparatus for cooling electrical equipment of air exhaust hood type microwave oven | |
| CN1273772C (en) | Air circulation device for heating-cavity of microwave oven | |
| CN1087070C (en) | Grill/convection microwave oven and convection cooking method thereof | |
| CN106524675A (en) | Heated air circulation traditional Chinese medicine drying box | |
| CN1136413C (en) | Electronic cooker | |
| CN1888559A (en) | Cooling structure for microwave oven electric control chamber | |
| CN1888552A (en) | Convection microwave oven | |
| CN1891051A (en) | Electric coutrol chamber cooling system for electric oven | |
| CN1270131C (en) | Air flow system for microwave oven | |
| CN1265128C (en) | Air flow system for microwave oven | |
| CN100334391C (en) | Mixing fan drive unit of microwave oven having smoke exhaust ventilating function | |
| CN1274995C (en) | Cooling device for door of microwave oven | |
| CN1428544A (en) | Microwave oven with exhaust function | |
| CN100347484C (en) | Driving device for stirring fan of microwave oven | |
| CN1752529A (en) | Surface plate structure for bottom of microwave oven chamber | |
| CN1704656A (en) | Ventilation hood type microwave oven | |
| CN1868237A (en) | Microwave oven | |
| KR19980017801U (en) | microwave |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060906 |