MXPA99002946A - Wall-mounted microwave oven and control method for my - Google Patents

Abstract

A wall-mounted microwave oven is described which includes a body that forms a cavity to accommodate the food to be cooked, a box enclosing said body and having an entrance door and an exit door respectively in the lower part and in the upper part thereof, to form a bell duct, and a bell fan being installed within said bell duct, comprising: a first interrupting part arranged in a main power source line interconnecting said bell fan and said power source for turning on or off the power transmission to said bell fan, a sensing interrupting part arranged in a power source sub-line connected in parallel with said main power source line, and being turned on or off automatically depending on of the ambient temperature to light said bell fan when the ambient temperature is a predetermined temperature, and a second interrupting part disposed in said power source sub-line, and being turned on or off manually to allow said bell fan to turn off when said detecting interruption part is turned on; with this configuration, the user can having said bell fan while said bell fan operates automatically due to the ignition of said bell detector, thereby reducing unnecessary energy consumption and operation noise.

Description

WALL-MOUNTED MICROWAVE OVEN AND CONTROL METHOD FOR THE SAME FIELD OF THE INVENTION The present invention relates to a wall-mounted microwave oven, and to a control method therefor, more particularly, it relates to a wall-mounted microwave oven and to a control method therefor which are suitable for a The user stops the power supply to a bell fan while said bell fan is automatically turned on by a bell-detecting switch due to the increased room temperature. With this, the unnecessary consumption of energy can be avoided and the noise generated from the operation of said bell fan can be reduced.

TECHNICAL BACKGROUND As illustrated in Figure 1, a wall-mounted microwave oven mounted on a wall above a gas stove 50, and serving as a hood, has the function of sucking up steam and gases generated while cooking the food. in the gas stove 50. As shown in figures 1 and 2, the wall-mounted microwave oven is comprised of a body 3 having a cavity 4 in which the food is cooked, and a box 6 surrounding the body 3. A magnetron 30 supplying high frequency electromagnetic waves in the cavity 4 is mounted between said cavity 4 and said casing 6. The magnetron 30 receives a high voltage current through a high voltage transformer (not shown) and a high voltage capacitor (not shown). At the same time, the box 6 includes an upper box 6a that surrounds the upper portion of the body 3 and a lower case 6b combined with the lower portion of the body 3. In the space between the case 6 and the body 3, a conduit is formed of bell 15 as a path for steam and exhaust gases. On the lower case 6b, an inlet port 8 is formed for sucking steam and gases towards the duct of the bell 15, and on the upper surface of the upper case 6a an exit door 9 is formed. An exhaust pipe 1 1 it is connected to said outlet door 9. Said exhaust pipe 1 1 is connected to a discharge line 17 which penetrates the wall to communicate with the air. A bell fan 13 is installed in the upper portion of the body 3 in the vicinity of the exit door 9, to discharge the vapor and gases sucked into the bell conduit 15 via the entry door 8 to the air via the door of exit 9. From the control panel, a user may choose to operate said bell fan 13 at low speed or at high speed. As is the case, a bell-detecting switch is provided on the inlet door 8 or the inner portion of the bell duct 15, in such a way as to supply power to the bell fan 13 or isolate the bell fan 13 from energy, according to the detected temperature of the ambient air. Generally, the on and off temperatures of the bell detector switch are set, so that the bell detector switch can be turned on or off when the room temperature reaches any of the set temperatures. With reference to the circuit diagram shown in Figure 3, the operating circuit for a wall-mounted microwave oven includes: a bell fan motor 20 connected to the normal AC power source 61, power interruption part 22 for applying or not energizing said bell fan motor 20, a selection switching part 23 for selection whether to drive said bell fan motor 20 at low or high speed, and a hood detection interruption part 27 arranged in parallel with said power switch part 22 for automatically operating said bell ventilation motor 20 when the ambient temperature is above a predetermined temperature. Said selection interruption part 23 is connected to a high-speed node 23a for operating said high-speed hood fan motor 20 and a low-speed node 23b for operating it at low speed, according to said controller 10. Although a user does not wish to operate said bell fan 13, said bell motor 20 begins to operate automatically by said detector switch part 27 when the room temperature increases and is above a predetermined temperature (typically 70). ° C) due for example to the use of a gas stove. Said bell fan motor 20 continues to operate (usually for 20 to 30 minutes) until the ambient temperature decreases and is below a predetermined temperature (normally 40 ° C). Although the user wishes to stop said bell fan motor 20 while said bell fan motor 20 is automatically operated by said detector switch part 27, the person can not do so because no means are provided for it. Although it is unnecessary to operate said bell fan 13 when the ambient temperature does not rise further, the user has to wait until said bell fan 13 stops automatically. In this case, said bell fan 13 is operating unnecessarily until said detector switch part 27 is opened, thereby causing operation noise and unnecessary consumption of electrical energy.

BRIEF DESCRIPTION OF THE INVENTION To solve the aforementioned drawback, the object of the present invention is to provide a wall-mounted microwave oven that allows the user to switch off, if necessary, the power source of the fan fan motor, and a control method for the same.

BRIEF DESCRIPTION OF THE DRAWINGS The above object and the advantages of the present invention will become apparent by describing the structure and operation thereof in detail with reference to the accompanying drawings in which: Figure 1 is a schematic view showing a configuration of a mounted microwave oven in wall according to the present invention when it has been installed on a wall; Figure 2 is a partial schematic perspective view showing a wall-mounted microwave oven in accordance with the present invention; Figure 3 is a circuit diagram of a conventional wall mounted microwave oven; and Figure 4 is a circuit diagram of a wall-mounted microwave oven in accordance with the present invention.

DETAILED DESCRIPTION OF THE PREFERRED MODALITIES Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. To achieve the object of the present invention, a wall-mounted microwave oven is provided that includes a body that forms a cavity to accommodate the food to be cooked, a box enclosing said body and having an entrance door and exit door respectively in the lower part and in the upper part thereof, to form a bell duct, and a bell fan being installed inside said bell duct, comprising: a first interrupting part disposed on a main power line which connects said bell fan and a power source, to turn on or off the power transmission to said bell fan; a detector interrupting part disposed in a sub-line of power source connected in parallel with said main power source line, and being turned on and off automatically, depending on the ambient temperature for turning on said bell fan when the ambient temperature is on a predetermined temperature; and a second interrupting part disposed on said power source sub-line, and being turned on or off manually to allow said bell fan to turn off during the ignition of said sensing interrupting part. Preferably, said first interrupting part and said second interrupting part are relay switches. To achieve the object of the present invention, a control method for a wall-mounted microwave oven is provided which includes a body forming a cavity to accommodate the food to be cooked, a box enclosing said body and having a door entrance and an exit door respectively in the lower part and in the upper part thereof, to form a bell duct, and a bell fan being installed inside said bell duct, comprising the steps of: temperature detection environment of said furnace; driving said bell motor when the detected temperature is above a predetermined temperature; and stopping said bell motor by a user while said motor operates based on the detected temperature. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. A wall-mounted microwave oven according to the present invention has the same configuration described in Figures 1 and 2, and thus, the configuration thereof will be omitted herein. Figure 4 is a circuit diagram of a wall-mounted microwave oven in accordance with the present invention. As illustrated, the operating circuit of a wall-mounted microwave oven in accordance with the present invention, includes: a bell fan motor 80 connected to a normal AC power source 81, a first interrupting part 82 for applying or not energizing said bell ventilation motor 80, a selection switching part 83 for selecting if driving said bell fan motor 80 at low speed or at high speed, and a sensing switching part 87 for automatically operating (normally for 20 to 30 minutes) said bell fan motor 80 when being turned on when the ambient temperature is about a predetermined temperature (typically 70 ° C), and to automatically stop said bell fan motor 80 from being turned off when the ambient temperature is below a predetermined temperature (normally 40 ° C), and a second interruption part 89 for or not apply energy to said bell ventilation engine 80. A power sub-line 93 is connected in parallel with a main power line 88 which connects the normal power source AC 81 to said first interruption part 82 and said selection switching part 83, respectively, wherein said first and second parts 82 and 83 of interruption and switching are connected in series. Said detection interruption portion 87 and said second interruption portion 89 are connected in said power sub-line 93. In the normal condition in which the user does not need to operate said bell fan motor 80, said first interruption part 82 remains open, while said selection switching part 83 remains closed by being connected to the low speed node 83b, and said second interrupting part 89 is also closed. When the user selects a high-speed mode of the control panel 7, said first interruption part 82 is controlled to be turned on by a controller 90, and said switching interruption part 83 is connected to a high-speed node 83a, operating automatically said bell fan motor 80 therewith. Also, when the user selects a low speed mode, said first interrupt part 82 is closed, and said selection switching part 83 is kept connected to a low speed node 83a as in the normal state, operating in this way said bell fan motor 80 at low speed. At the same time, when said bell fan motor 80 is operated at high speed or at low speed, depending on the selection of the user, said second interruption part 89 is set to be kept closed as in the normal position. Even if the user does not operate said bell fan motor 80, said detection interruption part 87 is closed and said bell ventilation motor 80 starts operating at low speed when the ambient temperature increases above a predetermined temperature (typically 70 ° C. ) due for example to the use of the gas stove installed below. Said bell fan motor 80 continues to operate (for approximately 20 to 30 minutes) until said detection interruption part 87 opens as the room temperature falls below a predetermined temperature (normally 40 ° C) as time passes. When the user wishes to stop the automatic operation of said bell fan after finishing using the gas stove, the control panel 7 operates to shut off said second interruption part 89, in such a way that said air motor 80 is stopped. Bell. As described above, according to the present invention, the user can stop said bell fan if necessary while the bell fan is in operation by means of said bell detector switch, thereby reducing the unnecessary consumption of energy and the noise of the operation. Although the present invention has been described in relation to preferred embodiments thereof, it will be appreciated by the person skilled in the art that additions, modifications, substitutions and deletions not specifically described may be made, without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (3)

NOVELTY OF THE INVENTION CLAIMS

1. - A wall-mounted microwave oven that includes a body that forms a cavity to accommodate the food to be cooked, a box enclosing said body and having an entrance door and an exit door respectively in the lower part and in the lower part upper thereof, to form a bell duct, and a bell fan being installed within said bell duct, comprising: a first interrupting part disposed on a main power source line interconnecting said bell fan and a power source for turning on or off the power transmission to said bell fan; a detection interruption part disposed on a sub-line of power source connected in parallel with said main power source line, and being turned on or off automatically depending on the ambient temperature, to light said bell fan when the ambient temperature is about a predetermined temperature; and a second interrupting part disposed on said power source sub-line, and being turned on or off manually to allow said bell fan to be turned off when said sensing interrupting part is on.

2. - A wall-mounted microwave oven according to claim 1, characterized in that said first interrupting part and said second interrupting part are relay switches.

3. A control method for a wall-mounted microwave oven that includes a body that forms a cavity to accommodate the food to be cooked, a box that encloses said body and that has an entrance door and an exit door respectively in the lower part and in the upper part thereof, to form a bell duct, and a bell fan being installed inside said bell duct, comprising the steps of: detecting the ambient temperature of said furnace; driving said bell motor when the detected temperature is above a predetermined temperature; and stopping said bell motor by a user while said motor operates based on the detected temperature. SUMMARY OF THE INVENTION A wall-mounted microwave oven is described which includes a body that forms a cavity to accommodate the food to be cooked, a box enclosing said body and having an entrance door and an exit door respectively in the lower part and in the upper part thereof, to form a bell duct, and a bell fan being installed within said bell duct, comprising: a first interrupting part arranged in a main power source line interconnecting said bell fan and said power source for turning on or off the power transmission to said bell fan, a detector interrupting part arranged in a power source sub-line connected in parallel with said main power source line, and being turned on or off automatically depending on of the room temperature to light said bell fan when the ambient temperature is on a predetermined temperature, and a second interrupting part disposed on said power source sub-line, and being turned on or off manually to allow said bell fan to turn off when said sensing interrupting part is on; With this configuration, the user can stop said bell fan while said bell fan operates automatically due to the ignition of said bell detector, thereby reducing the unnecessary energy consumption and the noise of the operation. P99 / 345 EA / appp (* ip? P? R