JP6253693B2 - microwave - Google Patents

Description

  The present invention relates to the field of household appliances, and more particularly to a microwave oven.

  In a microwave oven, in order to achieve an ideal cooking effect, cooking generally needs to be performed at a specific temperature. The immediate realization method is to control the temperature of the heated food in the cavity by measuring the temperature of the heated food in the cavity using an infrared temperature sensor. In the prior art microwave oven, since the infrared sensor is located in the middle of the cavity on the back side or the right side of the cavity, it is necessary to enlarge the space of the electric chamber, which is disadvantageous for miniaturization of the whole microwave oven. If the temperature of the infrared sensor increases, the service life of the infrared sensor is affected.

  Furthermore, when food is heated in a microwave oven, moisture in the food is evaporated and the food is dried. In order to solve the problem of food drying, generally, a microwave oven is provided with a steam function, that is, a water supply pump is used to suck water in a water tank into a steam generator, The generator uses water as water vapor and sprays it into the cavity to replenish the transpiration of the food. In existing microwave ovens, the water supply pump is provided on the other side of the electric chamber or at the bottom of the cavity, so that when the water supply pump operates, its operating temperature becomes high, which affects the service life.

  Further, in order to realize a grill function in a microwave oven, the entire existing realization method is to provide a heating tube at an intermediate portion at the top or bottom of the cavity. However, during operation, the operating temperature rise of the heating tube terminal becomes high, which affects the service life.

  In addition, in a microwave oven equipped with an existing infrared temperature sensor, a magnetron is provided on the bottom plate of the electric chamber, and a frequency converter for supplying power to the magnetron is provided on the magnetron. Since power can be supplied to the magnetron using a frequency converter or transformer, when using a transformer instead of a frequency converter, the transformer is heavy, so instead of using a transformer at the position of the frequency converter It cannot be installed. That is, the transformer cannot be suspended over the magnetron. Otherwise, the structure becomes unstable. Therefore, if the microwave oven uses a method of supplying power by a transformer, the frequency converter cannot be directly replaced with the transformer, and the design of the waveguide and the position of the magnetron need to be changed. Therefore, the position arrangement of the above-described electrical components is not adapted to exchange between the frequency converter and the transformer.

  The cavity of the microwave oven is provided with an infrared temperature sensor attachment port, and a temperature probe of the infrared temperature sensor is provided in the cavity to measure the temperature of the food to be heated in the cavity. At the same time, the cavity is further provided with a cavity inlet, and air outside the cavity enters the cavity from the cavity inlet, and after exhausting the smoke and water vapor generated in the process of heating food, it is discharged from the cavity outlet. The During the heating process, air containing oily smoke and water vapor easily overflows from the attachment port of the infrared temperature sensor in the cavity, and the oily smoke contaminates the temperature probe, so that the measurement result of the infrared temperature sensor becomes inaccurate.

  In the prior art, at least to some extent, in the prior art, when a microwave oven is operated, the service life of infrared sensors, water pumps, heating pipe terminals, etc. due to high temperature rise is reduced, frequency converters and transformers The purpose is to solve the problem that it is no longer applicable to the replacement of the sensor, or that the survey of the infrared sensor due to oil smoke is inaccurate.

  The present invention relates to a microwave oven.

  In the microwave oven according to the embodiment of the present invention, an electric chamber is formed between a cavity for containing food to be heated and the cavity, and a housing provided with a first air inlet, and the electric chamber. A fan unit for blowing air into the electric chamber, a magnetron for irradiating the cavity with microwaves, and being provided in the cavity; and the magnetron And the fan unit, a cavity inlet for guiding the wind to the cavity, and the cavity inlet, and is located on the air blowing side of the fan unit, An infrared temperature sensor for detecting the temperature of the food in the cavity.

  According to the microwave oven according to the embodiment of the present invention, since the infrared temperature sensor is located on the air blowing side of the fan unit, the operating temperature of the infrared temperature sensor can be lowered and the service life of the infrared temperature sensor can be extended. it can. Since the infrared temperature sensor is located between the magnetron and the fan unit, the space of the electric room can be used rationally, which is advantageous for downsizing the entire microwave oven.

  In some embodiments, the microwave oven is used to supply power to the magnetron, and includes a power supply device that is located under the magnetron and fixed to the bottom of the electric chamber. In addition.

  According to the microwave oven according to the embodiment of the present invention, since the power supply device is located under the magnetron and provided at the bottom of the electric chamber, the structure becomes stable and the product structure of the microwave oven is not changed. In addition, replacement of the frequency converter and the transformer of the power supply device can be realized.

  In some embodiments, the magnetron is secured to a side plate of the cavity.

  In some embodiments, the housing includes a cover, a front plate, a rear plate, and a bottom plate, the cavity includes a first side plate, the first side plate, the cover, the front plate, the rear plate, and the The electric chamber is formed by a bottom plate, the cavity suction port is provided in the first side plate, and the magnetron and the power supply device are located on the air blowing side of the fan unit.

  According to the microwave oven according to the embodiment of the present invention, since the magnetron and the power supply device are located on the air blowing side of the fan unit, the operation temperature rise of the magnetron and the power supply device is lowered, and the service life of the magnetron and the power supply device is extended. can do.

  In some embodiments, the cavity includes a second side plate and a third side plate, the second side plate is provided to face the first side plate, and the third side plate is connected to the first side plate. The second side plate is connected to the second side plate, the second side plate is provided with a cavity exhaust port, the third side plate is provided with an exhaust cover, and the cavity exhaust port is provided with the A first air guide cover connected to the exhaust cover is provided.

  In some embodiments, the third side plate has a hollow rear frame extending along a direction away from the first side plate, and the rear plate is provided on the hollow rear frame. The rear plate is provided with the first air inlet, and the fan unit is provided in the rear plate and corresponds to the first air inlet.

  In some embodiments, the fan unit includes a fan and a second wind guide cover for sending the wind generated by the fan to the electrical chamber and the cavity inlet.

  In some embodiments, the microwave oven further comprises a heating tube provided at the bottom of the cavity.

  In some embodiments, the microwave oven is housed in the electrical chamber and further includes a heating tube terminal positioned on the air blowing side of the fan unit, and the heating tube terminal is connected to the heating tube. And provided at one end of the bottom plate adjacent to the fan unit.

  According to the microwave oven according to the embodiment of the present invention, since the heating tube terminal is provided on the air blowing side of the fan unit, the operation temperature rise when the heating tube terminal is used is reduced, and the service life of the heating tube terminal is reduced. Can be extended.

  In some embodiments, the microwave oven is housed in the electrical chamber and further includes a water supply pump positioned on the air blowing side of the fan unit, wherein the water supply pump is adjacent to the fan unit. It is fixed to the one end of the bottom plate and is provided at a distance from the heating tube terminal.

  According to the microwave oven according to the embodiment of the present invention, since the water supply pump is provided on the air blowing side of the fan unit, the operation temperature rise when the water supply pump is used is lowered and the service life of the water supply pump is extended. be able to.

  In some embodiments, the microwave oven is provided between the second side plate and the cover, and further includes a steam generator fixed to the second side plate, wherein the steam generator includes: It is connected to the feed pump via a pipeline and is used to transport water vapor to the cavity.

  According to the microwave oven according to the embodiment of the present invention, since the steam function can be used after extending the service life of the water supply pump, the moisture in the food is evaporated by heating, and the food is dried. Prevent problems.

  In some embodiments, the first side plate is provided with a light transmission hole, and the light transmission hole is located between the magnetron and the front plate, and is covered with a transparent adhesive sheet and sealed. A lamp corresponding to the light transmission hole is accommodated in the electric chamber, the lamp is fixed to the outside of the cavity, and the first side plate is positioned outside the cavity. The heat insulation unit includes a heat insulation cotton provided on the first side plate and a heat insulation plate provided on the heat insulation cotton, and the transparent adhesive sheet is attached to the heat insulation plate. ing.

  According to the microwave oven according to the embodiment of the present invention, it is possible to prevent the thermal insulation cotton from keeping the temperature of the cavity and to prevent the electrical components of the electrical chamber from being affected by the high temperature of the cavity. Moreover, since the transparent adhesive sheet is affixed on the heat insulating plate, the influence on the adhesiveness of the transparent adhesive sheet due to the temperature of the cavity being too high can be avoided.

  In some embodiments, the microwave oven is formed in the electric chamber, and is formed in the electric chamber, a first air passage for communicating the first air inlet and the cavity air inlet. A second air passage for communicating between the second air inlet provided in the cover and the cavity air inlet, and the electric chamber, and is provided in the first air inlet and the housing. A first air outlet, a third air passage in which the magnetron, the power supply device and the lamp are provided, a second air outlet provided in the first air inlet and the housing, A fourth air passage in which a heater provided between the housing and the first connecting plate of the cavity is located, and the cavity intake port and the cavity exhaust port. A fifth air passage formed between the exhaust and the exhaust A third exhaust port provided in the bar is formed.

  According to the microwave oven according to the embodiment of the present invention, the infrared temperature sensor is provided in the cavity intake port, that is, the external air is passed through each air passage with the cavity intake port as an attachment port of the infrared temperature sensor. Reliability of the measurement results by entering the cavity through the cavity inlet, thereby avoiding the phenomenon that the oil smoke in the cavity flows backward and overflows from the cavity inlet, reducing the contamination of the infrared temperature sensor probe with the oil smoke In addition, it is possible to improve the accuracy and to prevent the mixed gas containing the smoke and water vapor in the cavity from flowing back into the electric chamber and coming into contact with the electric components in the electric chamber. Can be extended.

  Additional aspects and advantages of the present invention will be set forth in part in the description which follows, and in part will be apparent from the description that follows, or may be learned by practice of the invention.

The above-described and / or additional aspects and advantages of the present invention will become apparent and easily understood in the description of the embodiments combined with the following drawings. inside that,
It is a structure schematic diagram of the microwave oven by embodiment of this invention. It is a structure schematic diagram of the cavity and electric chamber of the microwave oven by embodiment of this invention. 1 is an exploded schematic view of a microwave oven according to an embodiment of the present invention. It is a structure schematic diagram of the microwave oven by another embodiment of this invention. It is a structure schematic diagram of another direction of the microwave oven by embodiment of this invention. 1 is a partial exploded schematic view of a microwave oven according to an embodiment of the present invention. 1 is a schematic side view of a microwave oven according to an embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described in detail. Examples of the embodiments are shown in the drawings, where consistently identical or similar symbols represent homologous or similar parts or parts having homologous or similar functions. In the following, the embodiments described with reference to the drawings are illustrative and are used only for interpreting the present invention and should not be understood as limiting the present invention.

  In the description of the present invention, the terms “center”, “vertical direction”, “lateral direction”, “length”, “thickness”, “upper”, “lower”, “front”, “rear”, “rear”, Orientation or positional relationship represented by "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. Based on the orientations or positional relationships shown in the drawings, which are used to conveniently or briefly describe the present invention, the designated device or component is in a particular orientation, configured in a particular orientation, and operated This should not be construed as a limitation on the present invention, as it does not indicate or imply. Note that the terms “first” and “second” are used for explanation only, and indicate or imply relative importance, or implicitly indicate the number of technical features indicated. Don't understand if you make it explicit. Thus, features that are limited to “first” and “second” explicitly or imply that one or more features are included. In the description of the present invention, “a plurality” means two or more unless there is a clear and specific limitation.

  In the description of the present invention, the meanings of the terms “attachment”, “connection to each other”, and “connection” should be broadly understood unless clearly defined and limited. For example, a fixed connection, a detachable connection, or an integral connection is possible. Mechanical connection, electrical connection, direct connection to each other, connection to each other indirectly through an intermediate medium, communication between two components, and mutual connection between two components An action relationship is also possible. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood depending on the specific situation.

  In the present invention, the first feature being “above” or “below” the second feature may include direct contact between the first feature and the second feature, unless otherwise specified and limited. The first feature and the second feature may include contact via another feature between them without direct contact. Also, the fact that the first feature is “above”, “above” or “upper surface” of the second feature includes that the first feature is directly above and obliquely above the second feature, or simply Only the horizontal height of one feature is higher than the second feature. That the first feature is “below”, “below” or “bottom” of the second feature includes that the first feature is directly below and obliquely below the second feature, or simply Only the horizontal height is lower than the second feature.

  In the following description, different structures of the present invention are realized by providing different embodiments or examples. In order to simplify the present invention, specific example members and arrangements are described in the following description. Of course, these are merely examples and are not intended to limit the present invention. Further, the present invention can be referred to by overlapping numerals and / or alphabets in different examples. Such overlap is for simplicity and clarity and as such is not indicative of the relationship between the various embodiments and / or arrangements considered. The present invention also provides examples of various specific processes and materials, but those skilled in the art can also consider other process adaptations and / or the use of other materials.

  As shown in FIGS. 1 to 3, the microwave oven 10 according to the embodiment of the present invention includes a cavity 12, a housing 14, a fan unit 30, a magnetron 18, and an infrared temperature sensor 16.

  The cavity 12 is used for containing food to be heated. An electric chamber 10 a is formed between the cavity 12 and the housing 14, and the housing 14 is provided with a first air inlet 140. The magnetron 18 is accommodated in the electric chamber 10a and is used for irradiating the cavity 12 with microwaves. The fan unit 30 is accommodated in the electric chamber 10 a and provided corresponding to the first air inlet 140. The infrared temperature sensor 16 is used to detect the temperature of food in the cavity 12, is located on the air blowing side of the fan unit 30, and is located between the magnetron 18 and the fan unit 30.

  According to the microwave oven 10 according to the embodiment of the present invention, since the infrared temperature sensor 16 is located on the air blowing side of the fan unit 30, the operating temperature rise of the infrared temperature sensor 16 is lowered and the service life of the infrared temperature sensor 16 is reduced. Can be extended. Since the infrared temperature sensor 16 is located between the magnetron 18 and the fan unit 30, the space of the electric chamber 10a can be rationally used, which is advantageous for downsizing the entire microwave oven 10.

  In the embodiment of the present invention, the cavity 12 is provided with a cavity inlet 120, and the infrared temperature sensor 16 is provided in the cavity inlet 120.

  As described above, the infrared temperature sensor 16 is provided in the cavity inlet 120, that is, the cavity inlet 120 is used as an attachment port of the infrared temperature sensor 16, and thereby, the oil smoke in the cavity 12 flows backward and the cavity inlet 120 The phenomenon of overflowing from 120 can be avoided, contamination of the oil temperature sensor 16 with respect to the probe of the infrared temperature sensor 16 can be reduced, and the reliability and accuracy of the measurement result can be improved.

  In addition, in this way, it is possible to prevent the mixed gas containing oil smoke and water vapor in the cavity from flowing back into the electric chamber 10a and contact with the electric components in the electric chamber 10a. Can be extended.

  In the microwave oven 10 in FIG. 3, only the frame of the infrared temperature sensor 16 is shown so that the cavity inlet 120 is exposed.

  A first air passage 10b for communicating the first air inlet 140 and the cavity air inlet 120 is formed in the electric chamber 10a, and external air passes from the cavity air inlet 120 to the cavity 12 via the first air passage 10b. Get inside.

  Preferably, the cavity 12 is provided with a single cavity inlet 120, and thus the oil smoke and water vapor in the cavity 12 effectively prevent backflow from the cavity inlet 120, and the infrared temperature. The influence on the accuracy of the sensor 16 can be avoided.

  At the same time, since the cavity 12 is provided with a single cavity inlet 120, the airflow can enhance the cleaning effect and cooling effect on the infrared temperature sensor 16.

  In other embodiments, the cavity may be provided with a plurality of cavity inlets. In such an embodiment, preferably an infrared temperature sensor is provided at the cavity inlet that has the highest inlet velocity.

  The cavity 12 is a substantially rectangular parallelepiped, and includes a first side plate 122, a second side plate 124, a third side plate 126, a fourth side plate 128, a first connection plate 12a, and a second connection plate 12b. The first side plate 122 and the second side plate 124 are opposed to each other, the third side plate 126 and the fourth side plate 128 are opposed to each other, and the first connecting plate 12a is the first side plate 122, the second side plate 124, and the third side plate. It is connected with the side plate 126 and the fourth side plate 128, the second connecting plate 12b and the first connecting plate 12a are opposed to each other, and the second connecting plate 12b is the first side plate 122, the second side plate 124, and the third side plate. 126 and the fourth side plate 128. The first side plate 122 is provided with a cavity inlet 120.

  A hollow rear frame 126a extends along the direction away from the first side plate 122 on the third side plate 126, and a hollow front frame along the direction away from the first side plate 122 on the fourth side plate 128. 128a extends.

  A perforated bottom plate extends along the direction away from the first side plate 122 in the second connecting plate 12b. As shown in the drawing, it can be understood that the first connecting plate 12 a is the top plate of the cavity 12 and the second connecting plate 12 b is the bottom plate of the cavity 12. The fourth side plate 128 is provided with a rectangular opening 128b, and food is put into the cavity 12 or taken out of the cavity 12 through the rectangular opening 128b. In the operation process, the microwave oven 10 seals the rectangular opening 128b with a door.

  The housing 14 is a substantially rectangular parallelepiped, and includes a cover 142, a front plate (not shown), a rear plate 146, and a bottom plate 148. The cover 142 is substantially U-shaped, covers the cavity 12, and covers the first side plate 122, the second side plate 124, and the first connecting plate 12a of the cavity 12.

  The front plate is provided on the hollow front frame 128 a of the fourth side plate 128 of the cavity 12, the rear plate 146 is provided on the hollow rear frame 126 a of the third side plate 126 of the cavity 12, and the bottom plate 148 is provided on the cavity 12. The second connecting plate 12b is provided on the perforated bottom plate. The rear plate 146 is provided with a first air inlet 140.

  Referring to FIG. 4, in this embodiment, an electric chamber 10 a is formed by the first side plate 122 of the cavity 12, the cover 142 of the housing 14, the front plate, the rear plate 146, and the bottom plate 148. The cover 142 is provided with a second air inlet 142a, and a second air passage (not shown) for communicating the second air inlet 142a and the cavity air inlet 120 is formed in the electric chamber 10a. Yes. Specifically, the second air inlet 142 a is provided on the side of the cover 142 facing the first side plate 122 and is provided so as to be close to the rear plate 146. External air enters the cavity 12 via the second air path.

  Thus, the microwave oven 10 can increase the intake air amount by providing the cover 142 with the second intake port 142a.

  The microwave oven 10 further includes a power supply device 20, a waveguide 36, and a lamp 22. The power supply device 20, the waveguide 36, and the lamp 22 are accommodated in the electric chamber 10a.

  The magnetron 18 is used to generate microwaves that heat the food in the cavity 12. The power supply device 20 is used to supply power to the magnetron 18. The waveguide 36 is used to introduce microwaves generated by the magnetron 18 into the cavity 12 to heat the food. The lamp 22 is used to illuminate the cavity 12.

  In the present embodiment, the power supply device 20 is fixed to the bottom of the electric chamber 10 a, the magnetron 18 is fixed to the first side plate 122 of the cavity 12, and the magnetron 18 is located on the power supply device 20. The power supply 20 can be a frequency converter or a transformer.

  Since the power supply device 20 is fixed to the bottom of the electric chamber 10a, the structure is stable. When replacing the frequency converter and the high-voltage transformer, there is no need to change the product structure of the microwave oven 10, That is, it is not necessary to change the design of the waveguide 36 and the position of the magnetron 18.

  In the present embodiment, the waveguide 36 is formed in an L shape. As a matter of course, the waveguide 36 is not limited to the L shape, and may have another shape, and the microwave generated by the magnetron 18 may be introduced into the cavity 12.

  In the present embodiment, the housing 14 is provided with a first exhaust port 14a, and a third air passage 10d for communicating the first intake port 140 and the first exhaust port 14a is formed in the electric chamber 10a. A magnetron 18, a power supply device 20, and a lamp 22 are formed in the third air passage 10d. Specifically, the first exhaust port 14 a is located on the side of the cavity 142 of the cover 142 that faces the first side plate 122.

  As described above, outside air enters the electric chamber 10a from the first air inlet 140 and flows through the third air passage 10d, and after taking heat from the magnetron 18, the power supply device 20, and the lamp 22, the first air outlet 14a. To the outside of the microwave oven 10.

  In the present embodiment, the housing 14 is provided with a second exhaust port 14b, and a fourth air passage 10e is formed between the first air intake port 140 and the second air exhaust port 14b. A heater (not shown) is provided between the cavity 12 and the first connecting plate 12a, and the heater is fixed to the first connecting plate 12a. Specifically, the second exhaust port 14 b is located on the side of the cover 142 facing the second side plate 124 of the cavity 12.

  The heater can be a component in which the microwave oven 10 realizes a grill function.

  Thus, external air enters the electric chamber 10a from the first air inlet 140, flows through the fourth air passage 10e and cools the heater, and is then discharged from the second air outlet 14b to the outside of the microwave oven 10.

  In the present embodiment, the second side plate 124 of the cavity 12 is provided with a cavity exhaust port 12c, and a fifth air passage (not shown) is formed between the cavity intake port 120 and the cavity exhaust port 12c. Yes.

  In this manner, air enters the cavity 12 from the cavity inlet 120, mixes the oil smoke and water vapor in the cavity 12, and then is discharged from the cavity outlet 12c to the outside of the cavity 12 through the fifth air passage.

  As shown in FIGS. 5 and 6, in this embodiment, the third side plate 126 of the cavity 12 is provided with an exhaust cover 26, and the cavity exhaust port 12c is provided with a first air guide cover 28. The first air guide cover 28 and the exhaust cover 26 are connected, and the exhaust cover 26 is provided with a third exhaust port 260.

  Thus, the air discharged from the cavity exhaust port 12 c enters the exhaust cover 26 through the first air guide cover 28 and is finally discharged from the third exhaust port 260. This avoids contact between the air from the cavity 12 and the electrical components outside the cavity 12, extending the service life of the electrical components and avoiding the exhausted air from interfering with the user. Can be improved.

  In the present embodiment, the fan unit 30 in the electric chamber 10a is fixed to the rear plate 146.

  As described above, after starting the microwave oven 10, the fan unit 30 can expedite the outside air being sucked into the electric chamber 10 a from the first air inlet 140 of the rear plate 146.

  In the present embodiment, the magnetron 18 is fixed to the first side plate 122 of the cavity 12, and the cavity inlet 120 is provided between the magnetron 18 and the fan unit 30. Thus, the cavity inlet 120 becomes closer to the fan unit 30, and the cleanliness of the infrared temperature sensor 16 can be further ensured.

  In the present embodiment, the fan unit 30 includes a fan 300 and a second air guide cover 302 for sending the wind generated by the fan 300 to the electric chamber 10 a and the cavity inlet 120.

  In the present embodiment, the first side plate 122 of the cavity 12 is provided with a light transmission hole 122 a, the light transmission hole 122 a is covered with the transparent adhesive sheet 32, and the light transmission hole 122 a is sealed with the transparent adhesive sheet 32. The lamp 22 is fixed to the outside of the cavity 12 and corresponds to the light transmission hole 122a.

  Thus, since the transparent adhesive sheet 32 has a light transmission effect and seals the light transmission hole 122a, it is possible to prevent the temperature in the cavity 12 from leaking into the electric chamber 10a.

  In the present embodiment, the first side plate 122 of the cavity 12 is provided with a heat insulating unit 34 located outside the cavity 12, and the heat insulating unit 34 includes a heat insulating cotton 340 provided on the first side plate 122, A heat insulating plate 342 provided on the heat insulating cotton 340, and the transparent adhesive sheet 32 is affixed to the heat insulating plate 342.

  As described above, the heat insulating cotton 340 has a heat retaining effect on the cavity 12 and can avoid the electrical components in the electrical chamber 10 a being affected by the high temperature of the cavity 12. Moreover, since the transparent adhesive sheet 32 is affixed to the heat insulation board 342, the influence on the adhesiveness of the transparent adhesive sheet 32 by the temperature of the cavity 12 being too high can be avoided.

  In the present embodiment, the microwave oven 10 includes a water supply pump 38 and a steam generator 40 provided outside the cavity 12. The steam generator 40 is connected to a water supply pump 38 through a pipeline, and is used to transport water vapor to the cavity 12.

  As described above, the steam generator 40 can transport the water vapor to the cavity 12 to prevent the food in the cavity 12 from being heated and dried excessively, and ensure the food texture.

  Preferably, the water supply pump 38 is housed in the electric chamber 10 a and is provided on the air blowing side of the fan unit 30. Specifically, the water supply pump 38 is provided at one end of the bottom plate 148 adjacent to the fan unit 30. The steam generator 40 is provided between the second side plate 124 of the cavity 12 and the cover 142, and the steam generator 40 is fixed to the second side plate 124.

  Thus, since the feed water pump 38 is provided on the air blowing side of the fan unit 30, the operation temperature rise when the feed water pump is used can be lowered and the service life of the feed water pump can be extended.

  In the present embodiment, the microwave oven 10 includes a heating tube provided at the bottom of the cavity 12. Thus, the microwave oven 10 can realize a grill function. Therefore, in this embodiment, since the microwave oven includes a heater and a heating tube at different positions, food can be three-dimensionally grilled.

  As shown in FIG. 7, in the present embodiment, a heating tube terminal 42 located on the air blowing side of the fan unit 30 is accommodated in the electric chamber 10a, and the heating tube terminal 42 is connected to the heating tube. Yes. Specifically, the heating tube terminal 42 is provided at one end of the bottom plate 148 close to the fan unit 30, and the heating tube terminal 42 and the water supply pump 38 are provided with a space therebetween.

  As described above, since the heating tube terminal 42 is provided on the air blowing side of the fan unit 30, the operating temperature rise when the heating tube terminal 42 is used can be lowered and the service life of the heating tube terminal 42 can be extended. it can.

  In this specification, a part described using terms such as “one embodiment”, “some embodiments”, “examples”, “specific examples”, “some examples”, and the like. Alternatively, specific features, structures, materials, or characteristics described in connection with the examples are included in at least one embodiment or example of the present invention. In the present specification, exemplary statements for the above terms do not necessarily indicate the same embodiments or examples. In addition, the specific features, configurations, materials, or characteristics described can be appropriately combined in any one or a plurality of embodiments or examples.

  Although the embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, corrections, changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. it can. The scope of the present invention is limited by the claims and their equivalents.

Claims (14)

A microwave oven,
A first side plate, a cavity exhaust port and an exhaust cover, and a cavity for containing food to be heated;
An electrical chamber is formed between the first side plate, a rear plate provided with a first air inlet , and a cover provided with a second air inlet, a first air outlet, and a second air outlet. The body,
A fan unit housed in the electrical chamber for sending wind to the electrical chamber;
A magnetron housed in the electrical chamber for irradiating the cavity with microwaves;
A power supply device housed in the electrical chamber, used to supply power to the magnetron, and located under the magnetron;
A lamp housed in the electrical chamber;
A cavity inlet for providing the wind to the cavity, the first side plate being located between the magnetron and the fan unit;
Infrared temperature sensor for detecting the temperature of the food in the cavity, located at the air blowing side of the fan unit, provided at the cavity intake port,
Equipped with a,
Furthermore, the microwave oven
A first air passage formed in the electrical chamber for communicating the first air inlet and the cavity air inlet;
A second air passage formed in the electrical chamber for communicating the second air inlet and the cavity air inlet;
A third air passage formed in the electric chamber, communicating with the first air inlet and the first air outlet, and having the magnetron, the power supply device and the lamp provided therein;
A fourth air passage formed between the first air inlet and the second air outlet, in which a heater provided between the housing and the first connecting plate of the cavity is located. ,
A fifth air passage formed between the cavity inlet and the cavity outlet;
A third exhaust port provided in the exhaust cover;
Microwave oven comprising: a. The power supply, the microwave oven according to claim 1, wherein the benzalkonium been fixed to the bottom of the electric room. The microwave oven according to claim 2, wherein the magnetron is fixed to the first side plate . The housing, the cover, in addition to the rear plate, provided with a pre Ita及 beauty bottom plate,
The electric chamber is formed by the first side plate, the cover, the front plate, the rear plate, and the bottom plate ,
The microwave oven according to claim 3, wherein the magnetron and the power supply device are located on a blower side of the fan unit. The cavity includes a second side plate and a third side plate, the second side plate is provided to face the first side plate, and the third side plate connects the first side plate and the second side plate. It provided so as, above the second side plate and said cavity outlet is provided, wherein the third side plate and the exhaust cover is provided, is connected to the exhaust cover to said cavity outlet The microwave oven according to claim 4, further comprising a first air guide cover.   A hollow rear frame extends along the direction away from the first side plate on the third side plate, the rear plate is provided on the hollow rear frame, and the rear plate includes the The microwave oven according to claim 5, wherein a first air inlet is provided, the fan unit is provided on the rear plate, and corresponds to the first air inlet. The fan unit is a fan,
The microwave oven according to claim 6, further comprising: a second air guide cover for sending the wind generated by the fan to the electric chamber and the cavity inlet.   The microwave oven according to claim 7, further comprising a heating tube provided at a bottom of the cavity.   The bottom plate close to the fan unit is further provided with a heating tube terminal that is housed in the electrical chamber and located on the air blowing side of the fan unit, and the heating tube terminal is connected to the heating tube. The microwave oven according to claim 8, wherein the microwave oven is provided at one end of the microwave oven.   The water supply pump is further housed in the electric chamber and positioned on the air blowing side of the fan unit, and the water supply pump is fixed to the one end of the bottom plate close to the fan unit, The microwave oven according to claim 9, wherein the microwave oven is provided at a distance from the heating tube terminal.   The steam generator is further provided between the second side plate and the cover and fixed to the second side plate, and the steam generator is connected to the water supply pump via a pipeline. The microwave oven according to claim 10, wherein the microwave oven is used for transporting water vapor to the cavity. The first side plate is provided with a light transmission hole,
The light transmission hole is positioned between the front plate and the magnetron, covered with a transparent adhesive sheet are sealed, the lamp corresponds to the light transmission hole of the electrical compartment, said lamp is fixed to the outside of the cavity
The microwave oven according to claim 11. The first side plate is provided with a heat insulating unit located outside the cavity, and the heat insulating unit includes a heat insulating cotton provided on the first side plate, and a heat insulating plate provided on the heat insulating cotton. The microwave oven according to claim 12 , wherein the transparent adhesive sheet is attached to the heat insulating plate.   A microwave oven,
  A cavity for providing food to be heated, including a first side plate;
  A cover that forms an electrical chamber with the first side plate, a front plate, a rear plate, and a bottom plate;
  A magnetron housed in the electrical chamber and irradiating the heated food with microwaves;
  An infrared temperature sensor for detecting the temperature of the food to be heated;
  A fan unit provided between the magnetron and the rear plate in the electric chamber;
  With
  The rear plate is provided with a first air inlet,
  The cover is provided with a second air inlet close to the rear plate,
  The first side plate is provided with a cavity inlet between the fan unit and the magnetron,
  The infrared temperature sensor is provided at the cavity inlet
A microwave oven characterized by that.

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