CN100396995C - Safety device for microwave oven - Google Patents
Safety device for microwave oven Download PDFInfo
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- CN100396995C CN100396995C CNB021236119A CN02123611A CN100396995C CN 100396995 C CN100396995 C CN 100396995C CN B021236119 A CNB021236119 A CN B021236119A CN 02123611 A CN02123611 A CN 02123611A CN 100396995 C CN100396995 C CN 100396995C
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- heater
- heating clamber
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- safety device
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Abstract
The present invention relates to a safety device for detecting whether a heating chamber and a heater of a microwave oven is overheated, which comprises a heater (12), a heater casing (12a), a circulation fan (14) and a fan casing (14a)., wherein the heater (12) is arranged on a heating chamber (10) of a microwave oven and supplies heat to the heating chamber through a ventilation part (12c) on the lower part of the heating chamber; the heater casing (12a) can cover the upper surface of the heater; the circulation fan (14) is arranged on the heating chamber (10) and enables air in the heating chamber to flow circularly through a ventilation part (14c) on the lower part of the heating chamber; the fan casing (14a) can cover the upper part of the circulation fan and is communicated with the heater casing (12a). The safety device of the present invention is characterized in that because cycle channels in the heater casing and the fan casing are directly connected with the heat chamber, integral air flow can be formed; because thermostats (20) are arranged on the inner sides of the cycle channels, whether circulating air and the heater are overheated can be detected.
Description
Technical field
The present invention relates to the safety device of the micro-wave oven in the micro-wave oven of a kind of electric furnace field, particularly relate to and a kind ofly on the air circulation duct of heating clamber inside, thermostat is set, thereby can detect the safety device of the whether overheated or micro-wave oven that detection of fires takes place in heating clamber inside rapidly and accurately.
Background technology
Micro-wave oven is to be the device of main heating source heated food with microwave.In order to improve the mode of heating of micro-wave oven single source, various heaters have been installed in micro-wave oven recently.
But, must consider the safety problem of heating clamber inside when utilizing the heat of microwave and heater simultaneously, the safety device of in time cutting off the electricity supply when promptly needing to install the inner generation flame of the too high or heating clamber of heating clamber temperature inside.
The safety device of existing micro-wave oven in the past is by being installed in corresponding to the thermostat near the pilot hole the heating clamber air exhaust port and preventing that near the too high thermostat that is installed in the heater of heter temperature from forming.And it is identical with heater quantity to be installed near the thermostat quantity of heater.Such as, there are two heaters just to be provided with two thermostats.
The safety device of above-mentioned micro-wave oven, though can provide user one to have the safety device of the micro-wave oven of safe effect, really has progressive, but when using, reality but finds also to have in its structure some shortcomings, the safety device that causes this micro-wave oven is in practical application, fail to reach best result of use, and its shortcoming can be summarized as follows:
At first, the too high or inner generation flame of heater for the temperature that prevents heating clamber, its thermostat must be installed in and the pairing pilot hole of the heating clamber inner air outlet outside.So it can not be to the heating clamber internal temperature too high or flame make the reaction of direct sensitivity.
Secondly, safety device in the past except that heating clamber, is also originally installed separately on one's body at heater and is prevented overheated thermostat, thereby number of spare parts is increased, and the assembling process complexity causes production cost to rise, and production efficiency reduces.
This shows that the safety device of above-mentioned existing micro-wave oven still has many defectives, and demands urgently being improved.
Because existing all can't provide, the safety device of above-mentioned existing micro-wave oven directly detects heating clamber internal state and defective simple in structure and that can save part rapidly and accurately, the inventor is based on abundant practical experience and professional knowledge, actively studied innovation, through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcomes the defective of the safety device existence of existing micro-wave oven, and a kind of safety device of micro-wave oven of new structure is provided, and makes it can directly detect the heating clamber internal state rapidly and accurately.
Another technical problem to be solved by this invention is, a kind of safety device of micro-wave oven of new structure is provided, and makes it simple in structure and can save part.
The present invention solves its technical problem underlying and realizes by the following technical solutions.The safety device of a kind of micro-wave oven that proposes according to the present invention is characterized in that, comprising: be located at above the heating clamber of micro-wave oven, and the heater ventilating part by its underpart is to the heater of heating clamber heat supply; Can cover the top heater housing of above-mentioned heater; Be located at above the heating clamber, and the circulating fan that the heating clamber inner air is circulated of the circulating fan ventilating part by its underpart; Can cover the top of above-mentioned circulating fan, and be communicated with fan drum at above-mentioned heater housing; The inner circulation canal that forms of above-mentioned heater housing and fan drum, whether this circulation canal directly is connected with heating clamber, forms integrated air stream, and is provided with thermostat in above-mentioned circulation canal inboard, overheated to detect circulating air and heater.
The present invention solves its technical problem and can also adopt following technical measures further to realize.The safety device of aforesaid micro-wave oven, wherein said thermostat is located at the medial surface of fan drum.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, the present invention is provided with thermostat on the circulation canal of the heating clamber of being made up of fan drum and heater housing, thereby detects the heating clamber internal temperature rapidly and accurately.And, because thermostat is installed near the heater, thus not only can detect the heating clamber internal temperature, but also whether can detect simultaneously the temperature of heater exactly too high.Like this, not only can guarantee the safety of micro-wave oven, can also save part simultaneously, improve the production efficiency of assembling process.
In sum, the safety device of micro-wave oven of the present invention can directly detect the internal state of heating clamber rapidly and accurately, and it is simple in structure, save part, and the industry that is very suitable for is used.No matter it structurally or bigger improvement is all arranged on the function, and have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thereby be suitable for practicality more, really is a new and innovative, progressive, practical new design.
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 micro-wave oven sectional view that possesses safety device of the present invention.
Fig. 2 is the micro-wave oven plane that possesses safety device of the present invention.
10..... heating clamber 12..... heater
12a..... heater housing 12c..... heater ventilating part
14..... circulating fan 14a..... fan drum
14b..... fan motor 14c..... circulating fan ventilating part
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, its specific embodiment of safety device, structure, feature and the effect thereof of the micro-wave oven that foundation the present invention is proposed, describe in detail as after.
See also Fig. 1, shown in Figure 2, the safety device of micro-wave oven of the present invention, it mainly comprises: be located at above the heating clamber 10 of micro-wave oven, and pass through the heater 12 of the ventilating part 12c of its underpart to the heating clamber heat supply; Can cover the top heater housing 12a of above-mentioned heater 12; Be located at above the heating clamber 10, and the circulating fan 14 that heating clamber 10 inner airs are circulated of the ventilating part 14c by its underpart; Can cover the top of above-mentioned circulating fan 14, and be communicated with fan drum 14a at above-mentioned heater housing 12a; Whether the circulation canal by above-mentioned heater housing 12a and fan drum 14a inside directly is connected with heating clamber 10, forms integrated air stream, and is provided with thermostat 20 in above-mentioned circulation canal inboard, overheated to detect circulating air and heater 12.
Micro-wave oven among the present invention, 11 are provided with heater 12 and circulating fan 14 above the heating clamber 10 of its heated food.Above-mentioned heater 12 can be to heating clamber 10 inner heat supplies, and above-mentioned circulating fan 14 is passed to heating clamber 10 inside more neatly to the heat in the above-mentioned heater 12.Simultaneously, can make heating clamber 10 inner airs form the recycled air stream of the above-mentioned heater 12 of process.
Above-mentioned circulating fan 14 relies on fan drum 14a, under the state of top sealing, be connected with the heating clamber 10 of bottom, and above-mentioned heater housing 12a is connected with the heating clamber 10 of bottom also under the state of top sealing.And,, be connected with the heating clamber 10 of bottom by said fans shell 14a and the formed space of heater housing 12a.If above-mentioned circulating fan 14 begins to rotate, heating clamber 10 inner airs are by being located at the ventilating part 14c of above-mentioned circulating fan 14 bottoms, flow into fan drum 14a inboard, then flow into heater housing 12a inside, and then circulate by the heating clamber 10 of ventilating part 12c that is located at heater housing 12a bottom to the bottom.
This repeatedly air circulation, the heat that above-mentioned heater 12 takes place can pass to heating clamber 10 more neatly.And above-mentioned circulating fan 14 rotates by mounted thereto fan motor 14b, thereby forms above-mentioned air stream.
And according to the present invention, above-mentioned air circulation duct is provided with thermostat 20.Above-mentioned thermostat 20 itself was with employed thermostat was identical in the past.Surpass uniform temperature as if the air that is circulated on the above-mentioned circulation canal, or contact and the perception condition of high temperature with the heating clamber 10 inner flames that take place, then thermostat 20 can be cut off the electricity supply.
As mentioned above, the present invention is an essential characteristic on the circulation canal of being made up of fan drum 14a and heater housing 12a thermostat 20 to be set.And, according to the present invention, thermostat 20 and 10 inner linking to each other of heating clamber, thus can directly detect the temperature of circulating air or the generation of flame, therefore, can control heating clamber 10 internal temperatures rapidly and accurately.
And, according to embodiment, the inboard of above-mentioned heater housing 12a, because of being provided with heater 12, thus complex structure, so above-mentioned thermostat 20 preferably is located at fan drum 14a inboard.
According to the present invention, above-mentioned thermostat 20 can detect heating clamber 10 internal temperatures very fastly, and, because be positioned near the above-mentioned heater 12, so whether the temperature that can also detect heater 12 rapidly is too high.And, according to the present invention,, just can detect the temperature of the whether too high and heater of heating clamber 10 internal temperatures 12 itself simultaneously because only need use a thermostat 20, so, can make its structure easier.
As mentioned above, the present invention is a basic fundamental thought on the circulation canal of being made up of fan drum 14a and heater housing 12a thermostat 20 to be set.And in the scope of this invention technological thought, the technical staff of the industry can pursue other multiple variation.Such as, by the shape of the circulation canal that fan drum 14a and heater housing 12a formed and path etc., can take multiple variation.Certainly, the present invention can only be explained in the patent claim of being added.
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 (2)
1. the safety device of a micro-wave oven is characterized in that it comprises:
Be located at above the heating clamber (10) of micro-wave oven, and pass through the heater (12) of the heater ventilating part (12c) of its underpart to heating clamber (10) heat supply;
Can cover the top heater housing (12a) of above-mentioned heater (12);
Be located at above the heating clamber (10), and the circulating fan (14) that heating clamber (10) inner air is circulated of the circulating fan ventilating part (14c) by its underpart; And
Can cover the top of above-mentioned circulating fan (14), and be communicated with fan drum (14a) at above-mentioned heater housing (12a);
The inner circulation canal that forms of above-mentioned heater housing (12a) and fan drum (14a), this circulation canal directly is connected with heating clamber (10), whether the formation integrated air flows, and is provided with thermostat (20) in above-mentioned circulation canal inboard, overheated to detect circulating air and heater (12).
2. the safety device of micro-wave oven according to claim 1 is characterized in that wherein said thermostat (20) is located at the medial surface of fan drum (14a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021236119A CN100396995C (en) | 2002-07-04 | 2002-07-04 | Safety device for microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021236119A CN100396995C (en) | 2002-07-04 | 2002-07-04 | Safety device for microwave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1465891A CN1465891A (en) | 2004-01-07 |
| CN100396995C true CN100396995C (en) | 2008-06-25 |
Family
ID=34142407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021236119A Expired - Fee Related CN100396995C (en) | 2002-07-04 | 2002-07-04 | Safety device for microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100396995C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207300B (en) * | 2010-03-29 | 2015-11-25 | 乐金电子(天津)电器有限公司 | A kind of have the micro-wave oven preventing fire structure |
| ES2621468T3 (en) * | 2010-12-24 | 2017-07-04 | Arçelik Anonim Sirketi | Oven comprising a thermostat |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07253247A (en) * | 1994-03-16 | 1995-10-03 | Hitachi Home Tec Ltd | Heating device of electric kotatsu |
| CN1353273A (en) * | 2000-11-10 | 2002-06-12 | Lg电子株式会社 | Microwav eoven heater system |
| CN1356501A (en) * | 2000-11-30 | 2002-07-03 | Lg电子株式会社 | Heater of microwave oven |
| CN1356500A (en) * | 2000-11-30 | 2002-07-03 | Lg电子株式会社 | Heater of microwave oven |
-
2002
- 2002-07-04 CN CNB021236119A patent/CN100396995C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07253247A (en) * | 1994-03-16 | 1995-10-03 | Hitachi Home Tec Ltd | Heating device of electric kotatsu |
| CN1353273A (en) * | 2000-11-10 | 2002-06-12 | Lg电子株式会社 | Microwav eoven heater system |
| CN1356501A (en) * | 2000-11-30 | 2002-07-03 | Lg电子株式会社 | Heater of microwave oven |
| CN1356500A (en) * | 2000-11-30 | 2002-07-03 | Lg电子株式会社 | Heater of microwave oven |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1465891A (en) | 2004-01-07 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 |