KR20030071952A - Microwave oven having toaster - Google Patents

Abstract

PURPOSE: A microwave oven is provided to have a function as a toaster by having an additional heating space except a heating chamber. CONSTITUTION: A casing is installed inside a component mounted chamber by opening the front side. A door(110) is installed to be rotated around a hinge shaft to open and close the front opened portion of the casing. A heater generates heat by installing inside the casing and feeding the electricity. A tray is horizontally installed inside the casing to put food on. An interlocking device pushes in and out the tray by interlocking with the opening and the closing of the door. Thereby, a heating chamber is installed without enlarging the size of a microwave oven.

Description

Microwave oven with heating chamber by heater {Microwave oven having toaster}

The present invention relates to a microwave oven, and more particularly, to a built-in heater heating chamber configured to separately heat other food such as bread by a heater, the electronic having a function to ensure a variety of uses as a whole It's about the range.

A general microwave oven is an apparatus for heating a heating object using a microwave. Looking at the configuration, at the inner center of the cavity assembly (1) forming the basic frame of the microwave oven, a heating chamber (2) for supplying microwaves to embed the heating object is formed, the adjacent side of the heating chamber In the electrical chamber 10, which is equipped with an electrical component for generating a microwave is formed. The heating chamber (2) is configured to be opened and closed by the door (4) to a space for heating the food by the microwave supplied in the state of the food to be heated therein.

And the electric chamber 10 is configured to be covered by the outer casing (6). Inside the electric compartment 10, a magnetron 12 for oscillating microwaves, a high pressure transformer 14 for applying a high pressure to the magnetron, air for cooling the electric parts and passing through the inside of the heating chamber 2 Blowing fan 16 etc. for forming a flow are provided.

Such a microwave oven is not suitable for performing a function as a toaster for baking bread, for example, because heating is performed using microwaves. In other words, in a microwave oven, microwaves are used as a main heating source, which is inadequate for heating foods such as toast, due to the heating characteristics of the microwaves. In a microwave oven, which is a device for heating food, it is natural to configure it to heat a wider variety of foods, for example, having a toaster function for baking bread, or having a small volume inside a smaller space. Naturally, if the food can be heated separately, it would be more preferable.

In order to meet such a demand, a microwave oven having a toaster function has been disclosed by Japanese Patent Laid-Open No. 1991-271630. According to such a prior art, a toaster that can be baked by putting bread on one side of the upper surface of the outer casing of the microwave oven is provided. However, in order to configure the bread to be baked on the upper surface of the microwave oven in this way, since the space for the bread can be separately provided between the heating chamber and the cavity, there is a disadvantage that the size of the microwave as a whole becomes large. . And it can be said that such a configuration does not meet the modern trend of demanding compactness and diversification of functions.

In view of such a conventional technology, it is preferable that the microwave oven has a function capable of various heating, including, for example, a toaster for baking bread, and regardless of the overall size while having such a function. What can be miniaturized is more in line with current trends.

An object of the present invention is to provide a microwave oven having a function as a toaster capable of baking bread.

It is another object of the present invention to further provide a microwave oven which is further provided with a separate heating space in addition to the heating chamber, so that it is inappropriate to be heated by a relatively small food or microwave.

Still another object of the present invention is to provide a microwave oven capable of providing a separate heating function such as a toaster function and at the same time ensuring a sufficient space in the heating chamber to have a compact appearance.

1 is an exploded perspective view showing the internal configuration of a typical microwave oven.

Figure 2 is a perspective view of the microwave oven of the present invention.

3 is a perspective view of main parts of the microwave oven according to the present invention;

4 is an enlarged perspective view of a heater heating chamber of the present invention.

5 is a side view of the heater heating chamber of the present invention.

Explanation of symbols on the main parts of the drawings

100 ..... Heater heating chamber 110 ..... Heater heating chamber door

112 ..... Interlocking lever 114 .... End Connection

120 ..... Casing 130 ..... Heater

140, 150 ..... Tray 142, 144, 152, 154 ..... Guide protrusion

Ha ..... Hinge Shaft

According to the present invention for achieving the above object, in the microwave oven having a heating chamber for heating food, and an electrical component chamber is installed therein for generating a microwave supplied to the heating chamber; A casing in which the front is installed in a state in which the front is opened in the electric compartment; A door rotatably installed around the hinge shaft of the lower end to open and close the front opening of the casing; A heater installed inside the casing and generating heat by application of electricity; A tray in which the food is placed in the horizontal direction in the casing; And interlocked with the opening and closing of the door, characterized in that it comprises a linking means for pulling out the tray forward or push back.

And according to an embodiment of the interlocking means, a plurality of guide protrusions extending on both sides of the tray; Guide slots formed horizontally on both side surfaces of the casing so that the guide protrusions protrude out of the casing; An interlocking lever having a front end connected to the door at an upper position of the hinge shaft and a rear end connected to the guide protrusion; It is configured to include a spring connected between the rear portion of the interlock lever and the rear end of the casing.

And according to another embodiment of the present invention, the tray is composed of a pair arranged up and down; The interlocking means is; A plurality of guide protrusions each extended to both sides of the pair of trays; Guide slots formed horizontally on both sides of the casing such that the respective guide protrusions protrude out of the casing; Connector each connected to at least one of the guide protrusions of the upper and lower trays; An interlocking lever having a front end connected to the door at an upper position of the hinge shaft, and a rear end connected to the connector; It comprises a spring connected between the rear portion of the connector and the rear end of the casing.

According to the embodiment, the heaters are arranged between the upper and lower ends of the trays arranged up and down, and the trays, respectively. And the heater is preferably linear and arranged horizontally.

Next, the present invention will be described in more detail with reference to the embodiments shown in the drawings.

First, as shown in Figures 2 and 3, the microwave oven according to the present invention, in addition to the heating chamber 22 that is opened and closed by the heating chamber door 20, a heater capable of heating food by a separate built-in heater The heating chamber 100 is characterized by the above-mentioned.

The heater heating chamber 100 is configured to be opened and closed by the door 110, the heater is installed therein as described later, for example, heating a small food containing a bread, etc. It is formed into a space that can be. And it can be seen that the heater heating chamber 100 according to the present invention is installed on the front side of the electric chamber 200.

According to the present invention, by installing the heater heating chamber 100 in the front portion of the electric chamber 200 of the microwave oven, substantially no influence on the capacity of the heating chamber 22 of the microwave oven, Installation of the heater heating chamber 100 does not occur when the size of the entire microwave oven increases or the capacity of the heating chamber decreases.

And by providing the heater heating chamber 100 in the front part of the electric field chamber 200, the advantage on electric wiring can also be expected. As will be described later, a heater for heating bread is to be installed inside the heater heating chamber 100. By installing the heater heating chamber 100 on the front side of the electrical equipment chamber, it is simpler by using an electrical wiring supplied to the electrical equipment chamber. It is possible to apply electricity to the heater.

Next, with reference to FIG. 3 and FIG. 4, the structure of the heater heating chamber 100 by this invention provided in the front part of the electric field chamber 200 is demonstrated in more detail. As shown, the heater heating chamber 100 according to the present invention is installed in the front portion of the electric chamber 200. The electrical room 200 is a part in which electrical components for generating microwaves are embedded. For example, a magnetron 202 for generating microwaves, a high voltage transformer 204 for applying high pressure to the magnetron and a high voltage capacitor (not shown), and a blower fan 206 for cooling the electrical component, etc. It is a built-in part, and there is a lot of space that can be utilized relatively inside the microwave oven.

Therefore, by installing the heater heating chamber 100 in the front portion of the electrical equipment room 200, it is possible to fully utilize the free space inside the electrical equipment room, without increasing the volume of the microwave oven as a whole, such as a toaster function The heating function of can be provided.

Referring back to FIG. 4, the heater heating chamber 100 forms a predetermined space inside the electric compartment 200 and has a casing 120 having a front opening and a door 110 opening and closing the casing 120. It includes.

Inside the casing 120, a heater 130 for heating food, such as bread, is built-in. In the illustrated embodiment, the heater 130 is provided with three heaters over the top and bottom. Of course, the heater 130 may use any kind of heater that generates heat by application of electricity.

The door 110 in the illustrated embodiment is provided with a pull-down door that is opened from the top to the bottom of the lower end. As shown in Figs. 4 and 5, the door 110 is configured to be opened and closed from the top to the bottom with respect to the hinge shaft (Ha) provided on both sides of the lower end. And in conjunction with the opening and closing operation of the door 110, a pair of trays (140, 150) for placing food, such as bread that is put into the casing 120 is installed to be withdrawn.

The configuration of the door 110 and the trays 140 and 150 will be described with reference to FIG. 4. As shown in the drawing, a pair of interlocking levers 112 are connected to both middle portions of the door 110 which are opened and closed while rotating up and down by the hinge shaft Ha. And the rear end of the interlock lever 112 is connected to the connector 114, in the illustrated embodiment is connected by a pin (Pa). And in the illustrated embodiment, it can be seen that the interlock lever 112 has a shape similar to the letter "A". The interlock lever 112 is pivotally connected to the door 110 at an upper portion of the hinge shaft Ha, and is also pivotally connected to the connector 114.

Therefore, when the door 110 is opened, the interlocking lever 112 connected to the door 110 is pulled toward the front side with respect to the hinge axis Ha. The interlocking lever 112 is pulled forward. And a spring (S) is connected to the rear end of the connector 114, the rear end of the spring (S) is fixed to the rear end of the casing (120). Therefore, when the door 110 is opened, as the interlocking lever 112 moves forward, the spring S increases and has elastic restoring force. When the door 110 is closed, the interlocking lever 112 is pulled backward by the elastic restoring force of the spring S to return to the original position.

Next, the relationship between the connector 114 and the trays 140 and 150 will be described. The trays 140 and 150 are respectively provided at the middle and lower ends of the casing 120, and the guide protrusions 142, 144, 152 and 154 are formed on both sides of the trays 140 and 150, respectively, to protrude outwards.

The guide protrusions 142, 144, 152, and 154 are inserted into guide slots 122 and 124 formed on both side surfaces of the casing 120, respectively, and are assembled to protrude out of the casing 120. The connector 114 is connected to one guide protrusion 142 of the upper tray 140 and at least one of the guide protrusions 142 of the lower tray 150. That is, it will be seen in FIG. 4 that the guide protrusion 142 is fitted to the upper end of the connector 114 and the guide protrusions 152 and 154 are fitted to the lower end of the connector 114.

Therefore, when the connector 114 is pulled forward by the connecting lever 112, it can be seen that the trays 140 and 150 which are connected to the connector 114 through the guide protrusions 142, 144, 152 and 154 are also drawn out to the front. have.

As illustrated, the trays 140 and 150 are formed using a linear metal material to place foods to be heated, for example, bread on top, and rear ends of the trays 140 and 150 are respectively rear ends of the bread. Support portions 146 and 156 for supporting the portion are integrally molded.

Inside the casing 120 of the heater heating chamber 100, as described above, a plurality of heaters 130 are installed, as shown in the illustrated embodiment, the bread in each of the pair of trays (140, 150) In order to be heated evenly on the upper and lower surfaces, the heaters 132, 134 and 136 are installed in the upper and lower portions of the pair of trays 140 and 150 and in the middle portion therebetween. The heater 130 can be controlled independently of the operating state of the heating chamber 22 of the microwave oven. In addition, the plurality of heaters 130 may be most preferably installed in a horizontal state as shown in the drawing, when the trays 140 and 150 are installed in two stages.

Although not shown in the drawings, the bottom of the casing 120, it will be possible to install a breadcrumb so as to contain the breadcrumbs, such as generated from food such as heated bread. That is, at the lower end of the door 110, by installing a bread crumb stand that can enter and exit the casing 120 inside the drawer, to collect and process the bread crumbs that can occur during the heating of the bread, etc. from the bottom of the casing 120 to process. It would be possible to configure it to do so.

Next, the operation of the heater heating chamber of the microwave oven according to the present invention configured as described above will be described.

As shown in FIG. 2, when the door 110 is closed, for example, to bake bread, the door 110 is opened. The door 130 is opened around the hinge shaft Ha of the lower end by pulling the handle 117 formed on the upper portion of the surface, casing 120 food through the open front of the casing 120 It becomes the state to be able to put into.

As the door 110 is opened, the trays 140 and 150 installed in the casing 120 also come out forward. As the trays 140 and 150 come forward, the interlock lever 112 and the connector 114 connected to the door 110 are configured as described above. In this state, the trays 140 and 150 are pulled forward, and the bread to be baked is placed on the trays 140 and 150 and the door 110 is closed again.

And when the door 110 is closed, the elastic restoring force of the spring (S) acts, the connector 114 is pulled to the rear. At the same time, since the guide protrusions 142, 144, 152 and 154 protruding through the guide slots 122 and 124 formed on both sides of the casing 120 are pushed backward like the connector 114, the tray ( 140 and 150 are also entered into the casing (120).

In this state, when the operation button for toast heating installed in the control panel 30 shown in FIG. 2 is pressed, heating by the heater 130 inside the casing 120 is started. When the bread is completely baked after a certain time, the toast is completed by opening the door 110 again and picking the bread from the trays 140 and 150 which are drawn out like the door.

According to this invention as mentioned above, it turns out that the heater heating chamber opened and closed by the door is provided in the part corresponding to the front part of an electrical equipment room. And within the scope of the basic technical spirit of the present invention as described above, many other modifications are possible to those skilled in the art, of course, the present invention should be interpreted by the appended claims will be.

According to the present invention as described above, it can be seen that a heater heating chamber having a heater as a heating source is provided separately from a heating chamber for heating food using a microwave as a heating source in a microwave oven. By using such a heating chamber according to the present invention, it becomes possible to heat a small food more simply. In particular, in the case of heating the bread, it is possible to provide the most suitable heating characteristics by the heat in the heater, in particular, because the heater heating chamber is in a closed state, the optimum heating is possible while preventing excessive drying on the bread. Benefits are expected.

And according to this invention, it turns out that the heater heating chamber for baking bread is installed in the electrical part room front part of a microwave oven. Therefore, by using the electrical room with a relatively free space, it is not necessary to reduce the space of the heating chamber, and it is possible to expect the advantage that the heater heating chamber can be installed without the size of the microwave oven as a whole. In addition, it is also expected to have an advantage in the configuration that can easily connect the power required in the heater heating chamber from the electrical equipment room.

Claims (5)

A microwave oven comprising: a heating chamber for heating food and an electrical equipment chamber in which electrical components for generating microwaves supplied to the heating chamber are installed. A casing (120) in which the front is installed in a state in which the front is opened; A door 110 rotatably installed around the hinge shaft of the lower end to open and close the front opening of the casing; A heater 130 installed inside the casing and generating heat by application of electricity; A tray in which the food is placed in the horizontal direction in the casing; And In response to the opening and closing of the door, it characterized in that it comprises a linking means for pulling out the tray forward or push back. The method of claim 1, wherein the interlocking means, A plurality of guide protrusions extended to both sides of the tray; Guide slots formed horizontally on both side surfaces of the casing so that the guide protrusions protrude out of the casing; An interlocking lever having a front end connected to the door at an upper position of the hinge shaft Ha, and a rear end connected to the guide protrusion; Microwave oven comprising a spring connected between the rear portion of the interlock lever and the rear end of the casing. The apparatus of claim 1, wherein the tray comprises a pair arranged up and down; The interlocking means is; A plurality of guide protrusions each extended to both sides of the pair of trays; Guide slots formed horizontally on both sides of the casing such that the respective guide protrusions protrude out of the casing; Connector each connected to at least one of the guide protrusions of the upper and lower trays; An interlocking lever having a front end connected to the door at an upper position of the hinge shaft Ha, and a rear end connected to the connector; Microwave oven comprising a spring connected between the rear portion of the connector and the rear end of the casing. The microwave oven according to claim 3, wherein the heaters are arranged between upper and lower ends of the trays arranged up and down, and between the trays. 5. A microwave oven according to claim 4, wherein the heaters are linear and arranged horizontally.