Abstract: The present invention relates to an apparatus and method for controlling output power of a combination hood and microwave oven, and more particularly, to an apparatus and method for controlling power of a combination hood and microwave oven, wherein an output level of a high voltage transformer for generating a high voltage can be adjusted. According to the combination hood and microwave oven of the present invention, the electric power supplied to the high voltage transformer can be increased by temporarily turning off the parts (limited to the components which can be controlled separately from the microwave oven function), such as the vent fan or the electric indicator lamp, having large power consumption. Thus, the output power level thereof can be increased. Therefore, there are advantages in that the quick cooking can be made and cooking performance can be improved due to the high output of the transformer, when the user intends to make the quick cooking with the high output power.

Abstract: A microwave oven is capable of cooking food using steam produced in a cooking cavity. The microwave oven includes a cabinet in which a cooking cavity is defined. A microwave heating unit radiates microwaves into the cooking cavity. A steaming unit is provided on a predetermined position of the cabinet to define a cooking space, which is partitioned from the cooking cavity. A steam guide passage guides steam produced in the cooking cavity, into the steaming unit.

Abstract: A microwave oven with a bread toaster is provided. The microwave oven with the bread toaster includes a cavity for cooking an object, an electrical device chamber having electrical devices for heating the object within the cavity, a ventilating device and a toaster. The ventilating device exhausts air inside the cavity to outside the microwave oven. The ventilating device also cools the electrical devices. The toaster, which is adjacent to the cavity, includes a toaster case and a toaster entrance. The object, such as a slice of bread, enters into and exits from the toaster case by opening or closing the toaster entrance.

Abstract: A combined microwave and hot-air circulating cooking appliance is disclosed. The appliance has a plurality of air injection openings that are provided in a wall of the cooking cavity for injecting heated air into the same. Each of the injection openings is connected to a heating compartment an air conduit having such dimensions so as to prevent propagation of microwave energy through the conduit.

Abstract: Disclosed is a cooling fan for a microwave oven, adapted for directing axially sucked airflow to be evenly distributed over a magnetron and a high voltage transformer. The cooling fan comprises a mixed flow fan having a specified hub angle, or an axial flow fan having optimized design parameters such as a ratio of an outer diameter of the fan to a width of a electric device chamber defined in a cabinet, a hub ratio, a sweep angle, a pitch angle, a maximum camber rate, etc.

Abstract: Microwave oven including an outer case forming a top and sides of a cabinet, a base plate forming a bottom of the cabinet, a front panel and a rear panel mounted in a front part and a rear part of the base plate for forming a front surface and a rear surface respectively, an inner case forming a cooking chamber on the base plate, first and second transformer mounted at corners of one side of the base plate, a fan above the second transformer for drawing external air, a fan motor connected to the fan for providing a driving power to the fan, a fan housing for protecting the fan, an air duct between the first and second transformers, having one end in communication with the fan housing and the other end branched to first and second branch ducts, and first and second magnetron on an outside surface of the inner case, the first and second magnetron connected to the first and second branch ducts respectively, thereby cooling various components of the microwave oven, smoothly.

Abstract: A cooking chamber assembly in a microwave oven for improved which improves air tightness in the cooking chamber, and reduces assembly complexity, time, and cost. A tray which essentially forms a bottom surface of a cooking chamber of the microwave oven is surrounded by a unitary gasket. A groove formed in an inner edge of the unitary gasket is designed to receive an outer edge of the tray, and a lip formed on an outer edge of the unitary gasket is designed to provide an air tight seal with an inner surface of a case of the cooking chamber. An air duct which guides circulating air is attached to an inner portion of the case with a series of hooks, allowing the air duct to be attached without separate fastening members such as screws or bolts, thus further reducing manufacturing time and cost.

Abstract: Trays placed in an autoclave are coupled with microwaves from microwave generators and move back and forth as they are processed to ensure even heating. The generators are placed at the side of the autoclave so each generator connects to a wave guide in the autoclave with upwardly directed decoupling openings immediately below the tray to be heated. The distance between the decoupling opening and the tray is maintained at less than one-half wavelength. The foods on the tray are heated first from below and then the heat rises. When water in the lower food layers is heated, steam forms and must pass through the cooler upper layers to escape. As it does so, it loses heat to these layers, warming them and preventing scorching on the food's surface as well as any bursting of the trays' seal.

Abstract: To realize an air guide of a radio-frequency heating apparatus that enables fixing of a lamp without use of a vis though it is made of a metal plate material. An air guide 9 made of a metal plate material is formed with two inverted-L-shaped nails 15. A holding portion 13 of a lamp 12 is hooked on the nails 15 and a waveguide holding plate 19 is brought into contact with an opposed surface of the holding portion 13 of the lamp 12. As a result, the lamp 12 can be fixed without using a vis and hence a step of fixing the lamp 12 with a vis can be eliminated. An inexpensive configuration can be realized that is free of fear that a disconnection may occur in a filament due to vibration.

Abstract: A surgical and dental instrument sterilizer is described. Liquid water is rapidly vaporized by microwave heating and steam is generated to attain a steam pressure of approximately 47 psi and a temperature of approximately 135° C. in the region of the articles to be sterilized. Micron-size water-droplets are intermittently sprayed onto the articles which are arranged on a tray, from both the top and from underneath thereof so as to thoroughly wet the surfaces. A 30-90 s duration of droplet spray is followed by pulsed microwave irradiation of the top and underneath surfaces for a similar period, as an example; this is followed by a plurality of spray/microwave cycles.

Abstract: A cooker having an air cleaning unit to clean the air around the cooker. The air cleaning unit has an air sucking port provided on a top wall of a casing, and an air discharging port provided at a front of an upper wall of a cooking cavity. An air passage is defined between the air sucking port and the air discharging port. A filter unit and a blowing fan are installed in the air passage. The air sucking port is integrated into a cover that hooks onto an edge of an opening that is formed on the top wall of the casing. A duct body defining the air passage is mounted on the upper wall of the cooking cavity. Guide grooves are provided at both sides of the inlet port so that the filter unit is slidably and removably fitted into the guide grooves.

Abstract: A wall-mounted type microwave oven to prevent deformation and drooping of an outer cabinet thereof. The microwave oven includes an outer cabinet defining an outer appearance of the wall-mounted type microwave oven, and an inner cabinet disposed in the outer cabinet with a predetermined spacing therebetween. The inner cabinet includes a hanger member extending from the inner cabinet to allow the inner cabinet to be secured to an installation base, and a fastening device to secure the hanger member to the installation base. The hanger member secures the inner cabinet as well as the outer cabinet to the installation base. A weight of the wall-mounted type microwave oven is distributed to the outer cabinet and the inner cabinet, thereby preventing deformation of the outer cabinet.

Abstract: A microwave oven includes a cabinet which defines an appearance of the microwave oven, a cooking cavity which is provided in the cabinet, a steam generating unit which is provided at a predetermined portion of the cabinet, and a steaming unit which is provided in the cabinet so as to define a space separated from the cooking cavity. The microwave oven further includes a steam guide passage which is provided in the cabinet to guide steam generated from the steam generating unit into the steaming unit.

Abstract: The present invention provides a high frequency heating apparatus having a structure, which can be mounted/dismounted an air-exhausting grill without any tools. In this apparatus, an air-exhausting grill is arranged by that a fixing claw portion having a bent Z-shape, a fixing hooking portion having a concave notch, and a magneto joint plate are arranged, whereas a main body located opposite to the air-exhausting grill is arranged by that a slit hole, a hooking flange, and a magneto fixing plate are arranged. As a result, since the magneto joint plate is absorbed with the magneto fixing plate to be fixed with each other, the mounting/dismounting work capability of the air-exhausting grill can be improved without using the tool in a simple manner, and furthermore, a clean cooking appliance can be secured, while the cooking appliance can be readily cleaned.

Abstract: A combination hood and microwave oven, in which the construction of a drive circuit relating to an exhaust device is simplified, reducing its manufacturing cost, and in which the number of user's manipulations required to operate the exhaust device is reduced, providing convenience of use to the user. The combination hood and microwave oven includes a variable suction hole whose suction area is variable, a variable suction hole motor allowing a suction area of the variable suction hole to vary, an exhaust motor allowing air sucked through the variable suction hole to be discharged outside the combination hood and microwave oven, an exhaust motor drive unit controlling a rotational speed of the exhaust motor, and a variable suction hole adjusting unit that controls the variable suction hole motor to allow a suction area of the variable suction hole to vary according to the rotational speed of the exhaust motor.

Abstract: A microwave oven includes a control panel having a panel casing, a membrane board, and a cover sheet. The membrane board is mounted to a front surface of the panel casing. A membrane board seat is formed at a predetermined area of the front surface of the panel casing so as to seat the membrane board. The control panel further includes an air discharging channel which is provided on the membrane board seat, and discharges air existing between the membrane board seat and the membrane board. The air discharging channel may extend to a cover sheet-panel casing interface. Accordingly, air existing between the panel casing, the membrane board and the cover sheet is discharged to the outside as the panel casing, the membrane board and the cover sheet are attached to each other.

Abstract: A fan motor having a simple construction and a microwave oven equipped with the fan motor. The fan motor includes a stator, a rotor, a rotating shaft extending from both ends of the rotor, a support unit mounted to a front of the stator, and a bearing inserted in a through hole of the support unit. The bearing forwardly extends from the support unit, and is set into a boss mounted to a rear of the support unit. A stopper in front of the bearing fits over an insert groove formed at an outer surface of the rotating shaft, and is stopped by a front end of the bearing, preventing the rotating shaft from being rearwardly removed from the stator. A blowing fan mounted to a front end of the rotating shaft cools electrical devices and ventilates a cooking cavity of the microwave oven.

Abstract: An airflow system of a cooking appliance having an oven cavity includes an intake portion, an exhaust portion and a diverter portion. The intake portion introduces an airflow into the cooking appliance that diverges into first and second airstreams. The first airstream enters the oven cavity and picks up moisture from food items being cooked, while the second airstream circulates outside the oven cavity. The diverter member guides the second airstream to mix with the first airstream at a predetermined region outside the oven cavity to transport the moisture through the exhaust portion and away from the cooking appliance. Preferably, the diverter member extends fore-to-aft below the oven cavity and includes a plurality of openings.

Abstract: A microwave oven includes a body which defines an appearance of the microwave oven, a cooking cavity provided therein, a microwave-supplying unit which generates microwaves to irradiate the microwaves into the cooking cavity, a plurality of vent holes which are formed on a sidewall of the cooking cavity to ventilate the cooking cavity, a water collecting depression which is formed on a bottom of the cooking cavity to contain water therein to generate steam, and a vent hole control unit which selectively closes the vent holes. During a steam cleaning operation of the microwave oven, the vent holes are closed to prevent a leakage of the steam from the cooking cavity to the outside of the microwave oven.

Abstract: A rapid cook convection oven is constructed to efficiently cook a food item by breaking down a thermal insulation layer maintained about the food, while effectively removing contaminates from within a convection air flow. The rapid cook oven preferably includes both a microwave cooking system and a convection cooking system. The convection cooking system is provided with a dual flow fan adapted to simultaneously draw in an oven air flow from a cooking chamber and a fresh air flow from the surroundings. In order to reduce the presence of contaminates and, by extension, smoke, the two air flows are combined in a mixing chamber and passed over a heating element arranged within a combustion chamber prior to re-entry into the cooking chamber.

Abstract: A high-frequency heating apparatus includes an outer enclosure, a high voltage generator such as a high-voltage capacitor, and an air guide, wherein the air guide is provided with a plastic hinge formed by partially reducing a wall thickness thereof. The invented structure can bend the plastic hinge to locate an end flap of air guide in a space between a terminal of the high-voltage capacitor and the outer enclosure defining a dead metal part, to easily ensure electrical insulation between the terminal and the outer enclosure without dependent on variations in quality of workmanship in the manufacturing process. In addition, it can reduce a number of working processes as well as amount of waste since all it requires is to bend the plastic hinge to provide the electrical insulation.

Abstract: A mountable type microwave oven including a blower fan assembly installed at a rear-upper portion of a cabinet to cool a machine room and ventilate a cooking chamber.

Abstract: Disclosed is an electric oven which increases temperature fast and reduces heat loss in accordance with that a cavity surface generates its own heat by using an induction heating. The electric oven comprises: a case having a door at a front side and having a cavity for receiving food therein; a magnetron installed at one side of an upper portion of the cavity for generating microwave of high frequency and supplying heat to the cavity; an inverter for generating high frequency at a space between the case and the cavity; first, second, third, and fourth heating units installed each side of the cavity for supplying heat. Since temperature of a cooking chamber can be set as wanted uniformly and faster, preheating time and actual cooking time can be reduced. Also, since inner temperature of the cavity rises faster and simultaneously, an automatic cleaning in the cavity using pyrolysis can be performed faster and uniformly, thereby reducing power consumption.

Abstract: A microwave oven includes a motor for a stirrer and a motor mounting unit. The motor is provided at an outer circumferential surface thereof with a first flange having a hole. The motor mounting unit is provided on an outer surface of a wave guide, and includes a seat, a mounting piece provided at an edge of the seat and having a hole, and a stopper. The stopper is upwardly projected from a first piece provided on the seat adjacent to the mounting piece, to delimit a mounted position of the motor. The motor mounting unit also includes a guide piece upwardly projected from a second piece provided at an edge of the seat. A slot is longitudinally formed along the guide piece. The motor has a second flange at a position opposite to the first flange to be fitted into and guided along the slot.

Abstract: A wall-mounted type microwave oven includes an outer cabinet defining an outer appearance thereof, an inner cabinet disposed in the outer cabinet to define a flow path therebetween, a sensor disposed in the flow path to check conditions of air flowing in the flow path, and a terminal unit connected to the sensor to transmit electric power and control signals to the sensor. The flow path includes a fitting hole to hold the sensor and the terminal unit. A sensor holder receives the sensor and the terminal unit, and is detachably fitted in the fitting hole. Only an operation of separating the sensor holder from a guide duct is performed in the guide duct, and an operation of pulling the sensor and the terminal unit out of the sensor holder and detaching the sensor from the terminal unit is performed outside the guide duct.

Abstract: Microwave oven including a main cabinet having a plurality of air inlet openings and a plurality of air outlet openings, for accommodating and protecting various components, an inner case provided in an upper space of the main cabinet to form a cooking chamber therein, the inner case having a plurality of inlet holes and outlet holes, an outfit chamber in a rear part of a lower space of the main cabinet for fitting electronic components therein, an inverter part in a front part of a lower space of the main cabinet, a magnetron part in a side space of the main cabinet, partition plates for separating a space for the inverter part, a space of the outfit chamber, and a space for the magnetron, respectively, and a single fan device in a part in contact with the spaces in common for circulating external air to the spaces in the main cabinet, thereby cooling the outfit chamber and the magnetron as well as preventing moisture in a cavity by using only one cooling fan and a fan motor.

Abstract: A microwave oven with an electric device is provided in which the microwave oven includes an electric device control button and a control unit. The electric device control button drives the electric device by manipulation of a user and generates a power amount control signal to control power supplied to the electric device. The control unit controls the amount of power supplied to the electric device in response to the power amount control signal. The power amount control signal is a single pulse signal that is generated whenever the electric device control button is manipulated; and the amount of power supplied to the electric device is determined depending upon a number of occurrences of the single pulse signal.

Abstract: Commercial microwave oven including a main cabinet for enclosing and protecting various components, having air inlet holes, a base frame under the main cabinet having a box form with an opened top and a front part with a plurality of air outlet holes, a bottom plate on the base frame, an inner case in a space above one side part of the bottom plate, the inner case having a cooking chamber formed therein, a magnetron on a lower part of an outside of the inner case, a transformer for regulating a voltage provided to the magnetron, a waveguide on an underside of the bottom plate, a fan in a rear of outside of the inner case, and a flow guide for guiding air passed through the magnetron toward air outlet holes, thereby cooling components effectively, reducing a volume, and cost of the product.

Abstract: A mountable type microwave oven including a blower fan assembly installed at a rear-upper portion of a cabinet to cool a machine room and ventilate a cooking chamber.

Abstract: The invention relates to apparatus for extracting solvents in a microwave field, having a microwave oven (11) which comprises at least one microwave generator (12), a control unit (13) and at least one microwaving chamber (14), said chamber being fitted with venting apertures (23) and at least one suction exhaust aperture (24) which is connected by an exhaust air line (25) to a source of partial vacuum (26), further comprising a rotor (16) rotatably mounted in said chamber and fitted with several specimen receptacles (18) that may be loaded with solvent. The apparatus is characterized in that a flow detector (28) is mounted downstream of the suction exhaust aperture (24), said detector reducing or preferably shutting off the power output of the microwave generator (12) when detecting a flow of air which is less than a predetermined limit value, said airflow limit value being selected in a manner precluding forming an explosive mixture of solvent and air in said chamber.

Abstract: A cooling system for microwave and/or convection ovens that allows air to ventilate into the interior of the oven to cool food. Adaptations allow the air to traverse across the interior of the oven along different paths, and a refrigeration system can assist in providing cooler air than ambient room temperature.

Abstract: A wall-mounted type microwave oven includes an exhaust fan assembly which increases an internal cooking chamber volume and allows a facing direction of its outlet to be easily changed. The exhaust fan assembly includes a fan case having an exhaust fan therein and a guide duct positioned on a side face of the fan case to guide exhaust gas toward the fan case. A lower portion of the fan case is disposed between the cooking chamber and the oven body, and communicates with an exhaust path of the microwave oven. An upper portion of the fan case protrudes upward from the oven body. Accordingly, a height of the cooking chamber is increased by a protruded height of the fan case. The fan case is shaped to have a square section and to have an inlet and an outlet at its side face and upper surface. The outlet of the fan case can be directed to a desired direction by separating the fan case from the oven body and fitting the fan case into the oven body with the outlet being directed to face the desired direction.

Abstract: The present invention relates to a microwave oven, and more particularly, to a device for cooling electric equipments of hooded microwave oven. The device comprises a ventilation motor assembly 40 mounted on the top of a cavity 20, for forming both a flow of air for a hood function and a flow of air for dissipating heat from the electric equipments; and a suction grill 50 through which outer air is sucked to the top of the cavity 20 by suction force of the ventilation motor assembly 40. The electric equipments are positioned in a flow of the air that is sucked through the suction grill 50 to the top of the cavity 20 and flows to the ventilation motor assembly 40. According to the present invention, since a flow of air for dissipating heat from the electric equipments is linearly formed, its cooling efficiency and the reliability of the electric equipments are enhanced.

Abstract: A heating cooker which evenly heats or cooks food, and is easily cleaned, includes a cabinet to define a cooking cavity therein. The cooking cavity is open at a front thereof. A fan chamber is defined by recessing a rear wall of the cooking cavity at a predetermined area to a predetermined depth. An air circulation fan and a heater are installed in the fan chamber. The air circulation fan circulates air of the cooking cavity. The heater heats the air in the fan chamber. A chamber cover is mounted to the rear wall of the cooking cavity to cover an open front of the fan chamber. The chamber cover has a plurality of air suction ports at a central area thereof, with a plurality of air distribution ports provided along an edge of the chamber cover to guide the air from the fan chamber to the edge of the chamber cover so as to discharge the air to the cooking cavity.

Abstract: To realize an air guide of a radio-frequency heating apparatus that enables fixing of a lamp without use of a vis though it is made of a metal plate material. An air guide 9 made of a metal plate material is formed with two inverted-L-shaped nails 15. A holding portion 13 of a lamp 12 is hooked on the nails 15 and a waveguide holding plate 19 is brought into contact with an opposed surface of the holding portion 13 of the lamp 12. As a result, the lamp 12 can be fixed without using a vis and hence a step of fixing the lamp 12 with a vis can be eliminated. An inexpensive configuration can be realized that is free of fear that a disconnection may occur in a filament due to vibration.

Abstract: A wall-mounted type microwave oven includes a slide duct which is forwardly extendable from the microwave oven to guide exhaust gas generated from an area in front of the microwave oven. The slide duct comprises a pair of guide plates, an exhaust path and an auxiliary exhaust fan. The exhaust gas is efficiently sucked into the slide duct and introduced into the microwave oven body where the slide duct is extended forward.

Abstract: A microwave device for de-icing and keeping areas of hollow body structures free from ice keeps atmospherically exposed leading edges and adjacent areas free of ice by means of a coolant circuit. The surface segments between the adjacent areas are kept free from ice as a result of the effects of a microwave device on the wall of the surface segments and the heating that occurs by the exposure to microwave radiation. A series of consecutive microwave-tight chambers is disposed behind the wall of the exposed area. A microwave source supplies microwaves to the chambers with the aid of a decoupling structure disposed therein, resulting in high/multimode excitation. The waste heat of the microwave sources is collected by means of a coolant circuit and transported to the r areas adjacent the leading edge for permanent heating in order to keep the surfaces free from ice. The microwave sources are cyclically operated.

Abstract: A combination hood and microwave oven, in which the construction of a drive circuit relating to an exhaust device is simplified, reducing its manufacturing cost, and in which the number of user's manipulations required to operate the exhaust device is reduced, providing convenience of use to the user. The combination hood and microwave oven includes a variable suction hole whose suction area is variable, a variable suction hole motor allowing a suction area of the variable suction hole to vary, an exhaust motor allowing air sucked through the variable suction hole to be discharged outside the combination hood and microwave oven, an exhaust motor drive unit controlling a rotational speed of the exhaust motor, and a variable suction hole adjusting unit that controls the variable suction hole motor to allow a suction area of the variable suction hole to vary according to the rotational speed of the exhaust motor.

Abstract: A microwave oven includes a humidity sensor, a main-outlet and a sub-outlet formed at opposite sidewalls of a cooking cavity such that the cooking cavity communicates with the atmosphere through the main-outlet and the sub-outlet. The sub-outlet is installed in a machine room adjacent an air inlet side of a cooling fan. The humidity sensor is installed in the machine room at a position adjacent to the sub-outlet and senses the humidity of air inside the cooking cavity by sensing the humidity of a part of the air discharged from the cooking cavity through the sub-outlet. The surface of the humidity sensor is less likely to be easily contaminated by the air exhausted from the cooking cavity, moisture deposited on the surface of the humidity sensor 60 is quickly evaporated so that the humidity sensor performs its desired operation even when the microwave oven sequentially performs several cooking processes.

Abstract: A cooking appliance includes an oven cavity, one or more heat sources for generating hot oven gases within the oven cavity to perform a cooking operation, a controller and a cooling system. The cooling system includes a fan having a drive shaft upon which is mounted a multi-pole magnet. A Hall effect sensor is positioned adjacent to the magnet and provides pulses to the controller. Using the pulses, the controller calculates a speed of the cooling fan. If, during a cooking operation, the controller determines the fan is not operating, the cooking operation is halted. Likewise, if the controller determines the fan is operating at too low a speed, the cooking operation is halted. In either case, a corresponding fault code is generated and stored within the controller.

Abstract: A high frequency heating apparatus of the present invention includes an inverter power supply for driving the high frequency generating device, a holding member for holding the inverter power supply and cooling fan for cooling down the inverter power supply. The holding member is provided with a holding portion for holding the inverter power supply and an air guide portion for guiding cooling air from the cooling fan toward the inverter power supply, and the air guide portion covers the inverter power supply and guides the cooling air in a manner that a semiconductor switching device and a high voltage transformer of the inverter power supply are primarily cooled down.

Abstract: Commercial microwave oven including a main cabinet for enclosing and protecting various components, having air inlet holes, a base frame under the main cabinet having a box form with an opened top and a front part with a plurality of air outlet holes, a bottom plate on the base frame, an inner case in a space above one side part of the bottom plate, the inner case having a cooking chamber formed therein, a magnetron on a lower part of an outside of the inner case, a transformer for regulating a voltage provided to the magnetron, a waveguide on an underside of the bottom plate, a fan in a rear of outside of the inner case, and a flow guide for guiding air passed through the magnetron toward air outlet holes, thereby cooling components effectively, reducing a volume, and cost of the product.

Abstract: A fan motor having a simple construction and a microwave oven equipped with the fan motor. The fan motor includes a stator, a rotor, a rotating shaft extending from both ends of the rotor, a support unit mounted to a front of the stator, and a bearing inserted in a through hole of the support unit. The bearing forwardly extends from the support unit, and is set into a boss mounted to a rear of the support unit. A stopper in front of the bearing fits over an insert groove formed at an outer surface of the rotating shaft, and is stopped by a front end of the bearing, preventing the rotating shaft from being rearwardly removed from the stator. A blowing fan mounted to a front end of the rotating shaft cools electrical devices and ventilates a cooking cavity of the microwave oven.

Abstract: A microwave oven includes a control panel having a panel casing, a membrane board, and a cover sheet. The membrane board is mounted to a front surface of the panel casing. A membrane board seat is formed at a predetermined area of the front surface of the panel casing so as to seat the membrane board. The control panel further includes an air discharging channel which is provided on the membrane board seat, and discharges air existing between the membrane board seat and the membrane board. The air discharging channel may extend to a cover sheet-panel casing interface. Accordingly, air existing between the panel casing, the membrane board and the cover sheet is discharged to the outside as the panel casing, the membrane board and the cover sheet are attached to each other.

Abstract: A wall-mounted microwave oven having an enhanced blowing capability. The wall-mounted microwave oven includes a cabinet which defines an external appearance of the microwave oven and an exhaust fan unit. An internal duct is provided in the cabinet. An external duct is installed at a predetermined position outside the cabinet so as to communicate with the internal duct. The exhaust fan unit is installed in the external duct and generates a blowing force which discharges contaminated indoor air to the outside of the microwave oven through the internal and external ducts. The wall-mounted microwave oven having such a construction allows a large-capacity exhaust fan and a large-capacity fan motor to be used without increasing the size of the cabinet. Additionally, a capacity of a cooking chamber can be increased without increasing the size of the cabinet.

Abstract: A smoke guiding apparatus of a wall-mounted microwave oven. A driving circuit of the smoke guiding apparatus includes limit switches which are turned on or off according to a moving position of a guide plate of the smoke guiding apparatus, a relay coil which is supplied with power in response to an exhaust motor of the microwave oven being operated, and a plurality of relay switches which are turned on or off by the supply of power to the relay coil. The driving circuit is implemented without using a conventional microcomputer. Accordingly, the entire manufacturing cost of the microwave oven is reduced. The instant smoke guiding apparatus can be applied to mechanical microwave ovens which are not provided with microcomputers. Furthermore, the driving circuit can drive a smoke guiding apparatus having an AC feed motor, as well as a DC feed motor, thus enabling the AC feed motor to be applied to the smoke guiding apparatus.

Abstract: A wall-mounted type microwave oven to prevent deformation and drooping of an outer cabinet thereof. The microwave oven includes an outer cabinet defining an outer appearance of the wall-mounted type microwave oven, and an inner cabinet disposed in the outer cabinet with a predetermined spacing therebetween. The inner cabinet includes a hanger member extending from the inner cabinet to allow the inner cabinet to be secured to an installation base, and a fastening device to secure the hanger member to the installation base. The hanger member secures the inner cabinet as well as the outer cabinet to the installation base. A weight of the wall-mounted type microwave oven is distributed to the outer cabinet and the inner cabinet, thereby preventing deformation of the outer cabinet.

Abstract: A wall-mounted type microwave oven includes an outer cabinet defining an outer appearance thereof, an inner cabinet disposed in the outer cabinet to define a flow path therebetween, a sensor disposed in the flow path to check conditions of air flowing in the flow path, and a terminal unit connected to the sensor to transmit electric power and control signals to the sensor. The flow path includes a fitting hole to hold the sensor and the terminal unit. A sensor holder receives the sensor and the terminal unit, and is detachably fitted in the fitting hole. Only an operation of separating the sensor holder from a guide duct is performed in the guide duct, and an operation of pulling the sensor and the terminal unit out of the sensor holder and detaching the sensor from the terminal unit is performed outside the guide duct.

Abstract: A wall-mounted type microwave oven includes an oven body having a cooking chamber and an electrical component compartment which are isolated from each other, an exhaust flow path which is extended between a bottom and a top of the oven body to exhaust gas positioned below the oven body to the outside, an exhaust fan assembly which is provided at an outlet of the exhaust flow path, a convection fan which is provided at a side wall of the cooking chamber to forcibly circulate air in the cooking chamber, a convection motor which drives the convection fan, and a cooling flow path which cools the convection motor using the exhaust fan assembly. The exhaust fan assembly communicates with the outside of the microwave oven at an end thereof and is extended at the other end thereof to an inlet of the cooling flow path.

Abstract: A cook appliance in the form of a range having upper and lower oven is provided with an exhaust system including an exhaust duct for the lower oven which extends through an exhaust duct for the upper oven. Each of the exhaust ducts leads to an exhaust air box which defines an exhaust outlet for the appliance. Preferably, the exhaust duct for the lower oven has associated therewith an extension sleeve which divides the exhaust air box into separate exhaust zones for the upper and lower ovens. Provisions are made to dilute and/or cool exhaust gases flowing through the ducts prior to the exhaust gases existing the appliance.