KR20060135534A - Heating cooker - Google Patents

Abstract

A heating cooker is provided to smoothly operate an operation unit disposed on a door during or after cooking process using a heater. A heating cooker comprises a cabinet(1) having a heating chamber and an opening for entrance/exit of an object into/from the heating chamber; a heater unit arranged in the heating chamber; a door(4) mounted on the cabinet so as to open/close the opening of the cabinet; an operation panel(11) having an operation unit arranged on a front surface of the door so as to control operation of the heater unit and a display unit(12) for displaying operating status of the heater unit. The operating unit is arranged beneath the display unit.

Description

Heated Cooker {HEATING COOKER}

1 shows the appearance of a heating cooker according to a first embodiment of the present invention, where (a) is a front view and (b) is a partial side view.

2 is a block diagram showing the electrical configuration of a heating cooker.

Fig. 3 is an equivalent view of Fig. 1 (b) when the user operates the operation unit.

4 is a view showing an example of a temperature distribution state of a door portion.

Fig. 5 is an equivalent view of Fig. 1A showing a second embodiment of the present invention.

Fig. 6 is an equivalent view of Fig. 5 showing a third embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

1: cabinet

2: heating room

4: Door

6: microwave heating unit (heating means)

8 heater heater (heating means)

11, 17, 19: operation panel

12, 20: display unit

13: control dial

14: Start key

15, 18: operation keys

[Document 1] Japanese Unexamined Patent Publication No. 2000-002432

[Document 2] Japanese Unexamined Patent Publication No. 2004-309060

The present invention relates to a heating cooker having an operation panel portion below the door for opening and closing the heating chamber.

In a heating cooker, in order to make the volume of a heating chamber larger, the machine room may be provided in the lower part or the back part of a cabinet, and it may be set as the structure by which the whole front of a cabinet is opened and closed by a door. In such a heating cooker, the operation panel portion is also arranged in a part of the door, but since the heating chamber is located on the rear side of the door, the door is also heated when the cooking is performed using an electric heater as a heating means, so that the temperature of the operation panel portion Rises. And since the temperature in a heating chamber becomes high temperature upward, since the temperature of the door surface also tends to become high from the center upward, the operation panel part is arrange | positioned in the lower part of a door for the purpose of avoiding a raise of temperature.

For example, the following patent document 1 and patent document 2 disclose the structural example of the above-mentioned heating cooker. In patent document 1, the display part and a manual operation key are sorted and arrange | positioned to the left and right of the operation panel part provided in the lower part of the door. In addition, in patent document 2, the display part, an operation key, and an operation dial are arrange | positioned in substantially the same row side by side in the same operation panel part.

[Patent Document 1] Japanese Unexamined Patent Publication No. 2000-002432 [See FIG. 1 (a)]

[Patent Document 2] Japanese Unexamined Patent Publication No. 2004-309060 (See FIG. 3)

However, the above-described conventional heating cooker has the following problems. That is, even when the operation panel portion is provided in the lower portion of the door, as shown in Patent Literature 1, if the display portion and the operation keys are classified and arranged to the left and right of the operation panel portion, when the heater heating cooking is performed, the upper portion from the center portion of the door as described above. Since the temperature becomes relatively high, there is a problem that the surface of the operation key disposed near the center of the door becomes a high temperature.

In addition, as shown in Patent Literature 2, when the display portion, the operation keys, and the operation dial are arranged in a narrow area under the door in approximately the same row, they are further separated from the center of the door, so that the temperature rise of the operation key surface due to heat conduction can be suppressed. In this case, the size of the display unit and the operation keys must all be reduced, which makes it difficult to operate the operation keys.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a heating cooker capable of suppressing an increase in temperature of an operation unit disposed on a door and maintaining good operability while performing heating cooking using a heater or after completion of heating cooking. There is to offer.

In order to achieve the above object, a heating cooker of one aspect of the present invention includes a cabinet having a heating chamber and an opening that allows entry of a heated object into the heating chamber, heating means disposed in the heating chamber, and the cabinet. A heating cooker having a door provided to open and close the opening in an opening portion, an operation panel provided on a front surface of the door to control an operation of the heating means and a display means for displaying an operating state of the heating means. The said operating means is arrange | positioned downward from the said display part, It is characterized by the above-mentioned.

In the heating cooker of this aspect, when the heating cooking using the heating means is performed, the heat in the heating chamber is propagated to the door and the temperature of the operation panel portion is increased. However, if the operating means is arranged below the display means, the display is displayed. Even if the means and the operation means are respectively increased, the temperature rise of the operation means can be suppressed. In addition, the display area of the display means is also secured.

Moreover, the heating cooker of the other aspect of this invention is characterized in that the said display part is arrange | positioned at the left side of the said door front surface rather than the said operation means.

According to the heating cooker of this aspect, the temperature rise of an operation means can be suppressed similarly to the heating cooker of the said aspect.

Moreover, the heating cooker of another aspect of this invention is that the said operation means consists of a manual press type operation member and a manual rotation operation member, and the said manual press type operation member is arrange | positioned below the said manual rotation operation member. It features.

According to the heating cooker of this aspect, similarly to the heating cookers of the two aspects, it is possible to suppress the temperature rise of the operation means and to maintain the operability thereof well, and also to secure the display area of the display means.

(First embodiment)

Hereinafter, a first embodiment in which the heating cooker of the present invention is applied to a microwave oven will be described with reference to FIGS. 1 to 4.

Fig. 1A is an external front view of the microwave oven according to the present embodiment, and Fig. 1B is a side view of a part thereof. As shown in FIG. 1, the cabinet of a microwave oven is comprised by fixing the rectangular inner box (not shown) which opened the front surface similarly to the rectangular box-shaped cabinet 1 which opened the front surface. . The inside of the inner box is a heating chamber 2 for storing the heated object, and approximately the entire area of the front surface of the cabinet 1 serves as an opening for entering the heated object into and out of the heating chamber 2. It is.

The opening of the heating chamber 2 can be opened and closed by rotating the door 4 up and down. The lower end of the door 4 is pivotally supported so as to be rotatable to the cabinet 1 on both left and right sides in Fig. 1A. When opening and closing the door 4, as shown in one side in Fig. 1B, the distal end of the support plate 3 becomes a rotation support point, not shown, inside the door 4, The upper limiting plate 5 is configured to limit the rotation range to approximately 90 degrees.

A machine room (not shown) is formed on the back side of the cabinet 1, and the machine room, which is composed of a magnetron, a high frequency power source, and the like, is housed in the heating chamber 2 at the time of oven cooking. A microwave heating unit (heating means, denoted by reference numeral 6 in Fig. 2), control microcomputer (denoted by reference numeral 7 in Fig. 2), and the like for radiating and heating microwaves with respect to It is stored. And inside the heating chamber 2, it consists of an upper heater (not shown) etc. arrange | positioned at the ceiling, The heater heating part (heating means, for heating the to-be-heated thing accommodated in the heating chamber 2 at the time of oven cooking, 2 is provided with reference numeral 8, and a temperature sensor (denoted with reference numeral 9 in FIG. 2) for detecting the temperature of the object to be heated is provided.

In addition, a handle 100 for opening and closing the door 4 by a user is provided at an upper portion of the front surface of the door 4, and at the lower portion, operating means used for setting cooking and confirming setting contents. The display operation panel part 11 provided with a display means is provided. The operation panel portion 11 has a horizontally long rectangular display means, for example, a display portion 12, disposed on the upper left side, and an operation means, for example, the operation dial 13 and a start key (upper right). A start key 14 is disposed, and a plurality of operation keys 15 are disposed below the same column.

And the operation dial 13 has a circular operation member which protrudes forward from the front surface of the door 4, and is comprised so that rotation operation and press operation are possible, The start key 114 is the operation dial 13, It is comprised by the operation member which has a slightly short protrusion length toward the front in substantially the same shape (refer FIG. 1 (b)). Moreover, the operation key 15 is comprised by the horizontally long rectangular operation member, and is comprised so that pressure operation is possible, and the operation surface of this operation member is the same as the plane of the operation panel part 11 (door 4), Or arranged so as to protrude slightly (see FIG.

Here, the position where this operation key 15 is arrange | positioned is lower than the lower end part of the opening part of the heating chamber 2 shown with a broken line in FIG.1 (b). Moreover, the operation dial 13 and the start key 14 are comprised by resin etc. which are materials with a lower thermal conductivity than glass which is the material which comprises the door 4. As shown in FIG.

Next, a schematic electrical configuration of the microwave oven will be described. As shown in Fig. 2, the microcomputer 7 serving as a control means included in the microwave oven includes a display unit 12 for displaying a heating time and a heating temperature, and an operation dial for setting and inputting the heating time and heating temperature. 13), the operation key 15, the start key 14 (not shown) which instructs heating cooking start, and the temperature sensor 9 which detects the temperature in the heating chamber 2 are connected. In addition, the microcomputer 7 is connected with a buzzer 16 for performing a cooking end notification operation or the like, and is also a microwave heating unit 6 and a heater heating unit via a driving circuit (not shown). (8) is connected, respectively.

Next, the operation of this embodiment will be described with reference to FIGS. 3 and 4 as well. For example, when oven cooking which is heating cooking by the heater heating part 8 is performed, a user opens the door 4, arrange | positions a to-be-heated substance, such as food, in the heating chamber 2, and the door 4 To close it. Next, the operation dial 13 and the operation key 15 are operated to set the desired cooking time, cooking temperature, and the like. At this time, the cooking time, the cooking temperature, and the like are displayed on the display unit 12.

Here, since the operation member of the operation dial 13 protrudes more than the operation member of the operation key 15, the operation key 15 is disposed above the operation dial 13 as shown in Fig. 3B. In this case, when the user presses the operation key 15, the operation dial 13 becomes obstructed. Therefore, as shown in Fig. 3A, the operability of the operation key 15 is improved by arranging the operation key 15 below the operation dial 13. Then, after all the settings are completed, the start key 14 is pressed to start oven cooking.

When oven cooking starts, the to-be-heated object accommodated in the heating chamber 2 is heated by the radiation heat which the heater heating part 8 generate | occur | produces. Then, since the heat propagates also to the door 4, the door 4 is also heated, and the temperature of the operation panel part 11 also rises. Here, FIG. 4 is a figure which shows an example of the temperature distribution state of the door part in execution of oven cooking. As shown in Fig. 4, the temperature of the door 4 is the highest in the region A1 which extends slightly upward from the center thereof, and the temperature decreases from the region toward the periphery in the order of the regions A2 to A4. The temperature below the door 4, which is an outer region than A4, tends to be the lowest. Therefore, in the area | region of the operation panel part 11 arrange | positioned under the door 4, the operation key 15 located below is suppressed in the temperature rise of the operation member surface.

On the other hand, although the operation dial 13 and the start key 14 are disposed above the right side of the operation panel portion 11, the operation dial 13 and the start key 14 are made of a material such as resin having a relatively low thermal conductivity, so that the propagation of heat from the door 4 is prevented. It can be suppressed. In addition, since the operation members of the operation dial 13 and the start key 14 are protruded forward from the surface of the door 4, the temperature rise of the operation surface can be suppressed.

During such oven cooking, when the setting conditions such as the cooking time and the cooking temperature must be changed, or when another cooking is performed after the completion of the oven cooking, the user again operates the operation dial 13 and the start key 14 and the operation key 15. ), But the temperature of each operation surface hardly rises even in this case, so that the user can comfortably manipulate them to change settings or to start other cooking.

According to the present embodiment as described above, in the case where the whole of the front surface of the cabinet 1 of the microwave oven is constituted to be the heating chamber 2, and the operation panel part 11 is arranged below the door 4, Since the operation key 15 has been disposed below the operation panel unit 11, for example, during or after the completion of oven cooking, the temperature rise of the surface of the operation member of the operation key 15 can be suppressed. In addition, since the operation member 13 arrange | positioned above the operation key 15 has the shape which an operation member protruded ahead of the surface of a door, the temperature rise of the operation member surface is also suppressed also with respect to the operation dial 13. Thus, the user can comfortably manipulate them to change the settings during or after the completion of oven cooking.

In addition, as a result of the operation key 15 being disposed below the operation dial 13, when the user inputs the setting by the operation key 15, the operation key 15 is not felt as an obstruction. Can be operated.

And since the display part 12 was arrange | positioned above the operation panel part 11, and the operation dial 13 was arrange | positioned above the right side, the user operated the operation dial 13, and desired cooking time, cooking temperature, etc. are adjusted. When setting so that it may be set, the display content of the display part 12 will become easy to see.

Moreover, since the start key 14 with a high frequency of use is comprised with the press operation member of the shape which protruded forward from the surface of the door, and it was arrange | positioned above the operation key 15, while suppressing the temperature rise of the operation member surface, The operability can be improved by making the operation surface larger.

Moreover, since the operation dial 13 and the start key 14 were comprised with resin etc. which are lower in thermal conductivity than the glass which comprises the door 4, the operation member is reduced by reducing the influence of the heat propagated from the surface of the door 4; The temperature rise of the surface can be further suppressed.

Moreover, since the operation dial 13 is comprised so that input by a press operation is also possible, the operation key 15 which performs the same press operation can be reduced, and the size of each operation key 15 is enlarged by that much, and operability is improved. Can be.

And since the operation key 15 was comprised by the horizontally long rectangular operation member, it can arrange | position to the area | region where the downward side of the operation panel part 11 is narrow, without impairing operability.

In addition, since the operation key 15 is disposed below the lower end of the opening of the heating chamber 2, the operation key 15 can be made less affected by the heat from the heating chamber 2.

(2nd Example)

Next, a second embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same part as 1st Example demonstrated with reference to FIG. 1A, description is abbreviate | omitted, and only another part is demonstrated below.

As shown in FIG. 5, the start key 14 and the some operation dial 13 are arrange | positioned in the same row at the upper right side of the operation panel part 17. FIG. In addition, the size of the operation key 18 is larger than the operation key 15 of the first embodiment, and the number of the operation keys 18 is disposed less than the operation key 15 of the first embodiment.

According to the second embodiment configured as described above, the operation key 18 for function switching for setting by the operation dial 13 can be reduced by increasing the number of the operation dial 13, and the operation key 18 by that amount. The operability can be improved by increasing each size.

(Third Embodiment)

Next, a third embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same part as 2nd Example demonstrated with reference to FIG. 5, and description is abbreviate | omitted and only another part is demonstrated below.

As shown in Fig. 6, on the left side of the operation panel unit 19, a display unit 20 having a size larger than that of the display unit 12 of the first embodiment is arranged, and a start key 14 and a plurality of keys on the upper right side. The operation dial 13 is arrange | positioned on the same row, and the operation key 18 is arranged in multiple numbers on the same row below.

According to the third embodiment configured as described above, when the number of the operation keys 18 is at least, when the display unit 20 is arranged on the left side of the operation panel unit 19 to increase the dimension in the height direction, the display unit 20 Each display content in parentheses can be made larger, and the user can easily recognize the display content.

In addition, the present invention is not limited to the above-described embodiment, but may be modified or expanded as follows.

The "door face" is not necessarily limited to one plane. For example, as disclosed in Fig. 1 of Patent Document 1, even when one end of another plane is joined so as to be inclined to one end of one plane, if they are integrally configured as a door, Door surface ”.

The shape of the start key may be not only circular but also rectangular.

The operation dial may be configured to perform only a rotation operation.

The shape of the operation key does not have to be horizontally long.

Depending on the state of temperature rise of the door, the material of the operation dial and the start key may be configured to have the same thermal conductivity as that of the door.

The heating means may be either a microwave heating part or a heater heating part.

According to the heating cooker of one aspect of the present invention, the operation means can be satisfactorily operated even during the execution or after the completion of the heating cooking. It is also possible to enlarge the display area of the display means to make the display contents easier to see.

Moreover, according to the heating cooker of the other aspect of this invention, an operation means can be favorably operated similarly to the heating cooker of the said aspect.

In addition, according to the heating cooker of still another aspect of the present invention, the operation means can be satisfactorily operated similarly to the heat cooker of the above aspect, and the display contents of the display means can be easily seen.

Claims (8)

A cabinet having a heating chamber and an opening for allowing the heated object to enter and exit the heating chamber, a heating means disposed in the heating chamber, a door provided to open and close the opening in the cabinet, and a front surface of the door. A heating cooker, comprising: an operation panel having operation means for controlling the operation of the heating means and a display means for displaying the operation state of the heating means, The said operation means is arrange | positioned below the said display part, The heating cooker characterized by the above-mentioned. The heating cooker according to claim 1, wherein the display portion is disposed on the left side of the front door of the door from the operation means. The heating cooker according to claim 1, wherein the operating means comprises a manual pressing type operating member and a manual rotating operating member, and the manual pressing type operating member is disposed below the manual rotating operating member. 4. The manual pressing type operation member according to claim 3, wherein the manual pressing type operation member is configured to be protruding from a surface of the door, and includes a start key for operating the heating means in an immersive state, wherein the start key is another manual pressing type operation. It is arrange | positioned above a member, The heating cooker characterized by the above-mentioned. The heating cooker according to claim 4, wherein the manual pressing operation member other than the start key has a horizontally long shape. The heating cooker according to claim 4, wherein the manual rotation operation member and the start key are made of a material having a lower thermal conductivity than the operation panel. The heating cooker according to any one of claims 3 to 5, wherein the manual rotation operation member is configured to be in and out of the surface of the door. The heating cooker according to claim 1, wherein the operation means is located below the opening.

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