JP2000012209A - Heating cooking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of short circuit and leak between adjacent charging parts to normally operate a device by installing a box means for preventing the entrance of water vapor and dew condensation water attached to a door means into an operating circuit means. SOLUTION: A shell 4 and an operation circuit means 8 indicating a variety of key devices for controlling the operation of a heating part such as high frequency oscillator within a heating cooking device 1 are arranged in a door means 3. A control circuit signal connecting means 11 is passed through the lower part of the shell 4 of the door means 3 from the side of the operation circuit means 8, put in the heating cooking device 1 from the lower part of the heating cooking device 1, and connected to a relay connector 16 in which electric signal connection to a driving circuit means 12 is fixed to a partition plate 15. In a machine room partitioned with the partition plate 15, a high frequency oscillator 17 serving as a heating means, a motor 18 for rotating a pan on which a food is placed, and a blower 19 for cooling these electric equipment are arranged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for driving and controlling an electric device of a main device of a cooking device such as a microwave oven, and more particularly to a cooking device in which a part of the control device is incorporated in a door device. It is about.

[0002]

2. Description of the Related Art A conventional heating cooking apparatus of this kind is disclosed in
What was described in -189422 was common. As shown in FIG. 15, 1 is a heating cooking device main body, 2 is a heating chamber for storing food, 3
Is a door means for opening and closing the opening of the heating chamber. The door means 3 is provided with an outer shell 4 of the door means, a see-through barrier 5, and a metal component 6 such as a punching plate.
There is an operation circuit means 8 clearly indicating various operation keys 7 and the like for controlling the operation of a heating unit such as a high-frequency oscillator in the inside.
Also, various electric devices such as the operation circuit board unit 10 are provided. Further, various electric devices in the door means 3 are connected to electric devices such as the drive circuit means 12 in the heating and cooking device main body 1 through the control circuit signal connection means 11.

Upper and lower door rotation support means 13a and 13b are fixed to the side of the front end of the heating and cooking apparatus main body 1. These door rotation support means 13a, 13b are protruded forward, and the side of the door means 3 is rotatably connected to the rotation shafts 14a, 14b fixed to the respective ends. ing.

[0004] The door means 3 closes the opening of the heating chamber 2 to store and heat the food in the heating chamber 2. After the steam spouted from the food is filled in the heating chamber 2, the main body of the cooking device is heated. 1 exhaust port and door means 3 and heating chamber 2
And came out of the heating and cooking device main body 1 through the gap between the heating and cooking device.

[0005]

However, in the above-mentioned conventional heating and cooking apparatus, the operation circuit means 8 incorporated in the door means 3 has the operation circuit board unit 10 and the display means 9 for displaying the operation contents, the cooking status and the like. After the steam spouted from the food is filled in the heating chamber 2, the heating apparatus 2 is provided with an exhaust port and a gap between the door means 3 and the heating chamber 2. This water vapor comes out of the door unit 3 and the outer shell 4 of the door means 3 and the see-through barrier 5
Through the gap between the components such as the metal component 6 such as a punching plate and the like, to reach the position of the operation circuit board unit 10 of the operation circuit means 8 and the position of various electric devices such as the display means 9, and to the charging section of the various electric devices. The phenomenon that water vapor dew condensation occurs, and the dew condensation of the water vapor causes a short circuit / leakage phenomenon between adjacent charged parts, resulting in a state where the operation control of the heating cooking device cannot be normally performed. was there.

[0006]

According to the present invention, the operation circuit means incorporated in the door means 3 for solving the above-mentioned problem is a combination of a plurality of individual parts, but can be kept airtight at a contact portion between the parts. Depending on the seal material or seal configuration,
It is configured to have a box means in which steam and dew condensation water adhering to the door means 3 cannot enter the inside.

According to the above invention, the sealing material or the sealing structure does not allow the water vapor and the dew water adhering to the door means 3 to reach the positions of the operation circuit board unit 10 of the operation circuit means 8 and various electric devices such as the display means 9. Therefore, it is possible to prevent a state where the operation control of the heating cooking device cannot be normally performed.

[0008]

The heating and cooking apparatus according to claim 1 of the present invention comprises a heating chamber for storing food, heating means for heating the food, an opening for putting food into the heating chamber, A door means for closing the opening, and control circuit means for controlling the operation of the heating means, wherein the control circuit means is an operation circuit means incorporated in the door means, and a main body including the heating chamber Drive circuit means incorporated in the apparatus, and control circuit signal connection means for connecting the operation circuit means and the drive circuit means with an electric signal, wherein the operation circuit means includes steam adhering to the door means and It has the structure which has the box means which dew condensation water cannot enter inside.

Since the operation circuit means has a box means in which the water vapor and the dew condensation water adhering to the door means cannot enter the inside, the water vapor and the dew water adhering to the door means 3 are removed from the operation circuit board unit. Since it does not reach the positions where the charged parts of various electric devices such as 10 and the display means 9 are located, short-circuiting and leakage between adjacent charged parts does not occur due to dew condensation of attached water vapor, and the cooking device can operate normally. Operation can be controlled.

According to a second aspect of the present invention, the box means of the cooking device includes a decorative plate indicating an operation input key arrangement and a storage box for storing and holding the operation circuit board unit. The outer peripheral portion of the butted surface is provided with a sealing means for maintaining airtightness.

Then, the sealing means for maintaining the airtightness penetrates into the gap appearing on the outer peripheral portion of the abutting surface between the decorative plate and the storage box, and the gap between the outer peripheral portion of the abutting surface between the decorative plate and the storage box disappears. Thus, there is no gap through which dewed water of steam generated by the heating operation can enter. For this reason, the water vapor adhered to the door means 3 and its dew condensation water do not reach the positions of the charged portions of the various electric devices such as the operation circuit board unit and the display means 9 in the storage box. As a result, no short-circuiting / leakage phenomenon occurs between the adjacent charging parts, and the operation of the heating cooking device can be controlled normally.

According to a third aspect of the present invention, the decorative board of the cooking device has makeup indicating means for indicating an operation input key arrangement, and display means having a through hole for passing an operation stroke transmitting pin at a portion corresponding to the operation input switch. The makeup display means and the display board means are in close contact with each other at an outer peripheral portion of a surface where the makeup display means and the display board means are in contact with each other in order to realize a close-fitting configuration for maintaining the airtightness. It was configured to have at least one circulation of the portion.

Since at least one portion of the outer peripheral portion of the surface where the decorative display means and the display panel contact with each other is circulated at the portion where the decorative display and the display panel are in close contact with each other, the water vapor adhering to the door means 3 and the Even if the dew condensation water tries to enter the makeup display means and the display board means, at least one part of the outer peripheral portion of the contact surface between the makeup display means and the display board means is in close contact with the makeup display means and the entry path of the water vapor and the condensation water. Is blocked, the steam adhering to the door means 3 and the condensed water do not reach the positions of the charged portions of various electric devices such as the operation circuit board unit and the display means 9 in the storage box. As a result, no short-circuiting / leakage phenomenon occurs between the adjacent charged portions due to the condensation, and the operation of the heating cooking device can be controlled normally. In addition, since the position where the surface where the cosmetic display means and the display panel means can contact is cut off is the outer peripheral portion of the contact surface, it is necessary to have at least one circulation of the closely contacted part.

According to a fourth aspect of the present invention, the box means of the cooking device comprises a storage box for storing and holding the operation circuit board unit, and a lid means for enclosing the operation circuit board unit in the storage box. In addition, a sealing means for maintaining airtightness is provided on an outer peripheral portion of an abutting surface of the storage box and the lid means.

A groove for positioning the sealing means is provided in one of the storage box and the lid means at the outer peripheral portion of the abutting surface of the storage box and the lid means, and the sealing means is positioned in the groove. A door means for sandwiching the sealing means so as to press the butting surface of the storage box and the lid means and compressing the storage box, the lid means and the sealing means mutually to realize a sealing means for maintaining airtightness. Even if the water vapor and the dew water adhering to 3 attempt to enter between the storage box, the lid means, and the sealing means, the contact pressure between the storage box, the lid means, and the sealing means is large. However, the pressure of the condensed water flowing down cannot enter the storage box. Then, in order to prevent the water vapor adhering to the door means 3 and the dew condensation water from reaching the charged portion of various electric devices such as the operation circuit board unit and the display means 9 in the storage box, As a result of the dew condensation, a short circuit and a short circuit between adjacent charging units do not occur, and the operation of the heating cooking device can be controlled normally.

According to a fifth aspect of the present invention, there is provided a heating and cooking apparatus comprising a storage box of a box means, a lid means, and a sealing means, which are detachable and can be easily disassembled without being fixed to each other.

When a failure occurs in various electric devices such as the operation circuit board unit and the display means 9 in the box means, the operation circuit board unit and the display means 9 and the like are physically confirmed, and the location of the failure and the contents are clarified. There is a need to.

On the other hand, if the box means is provided with a completely close-sealing means for preventing intrusion of dewed water, various electric devices such as the operation circuit board unit and the display means 9 can be removed from the box means in order to confirm the actual thing. In order to take it out, the complete close sealing means is disassembled, making it difficult to regenerate. For this reason, it is necessary to prepare a new box means when trying to store various electric devices such as the operation circuit board unit and the display means 9 in the box means again. Become.

However, even if it is necessary to take out various kinds of electric equipment such as the operation circuit board unit and the display means 9 from the box means in order to confirm the actual thing, there is provided a detachable fixing means which can be easily disassembled. Therefore, since the box means used until disassembly can be used as it is, it is possible to avoid spending a large cost for repairing a failure in the market.

The fixing means for assembling and fixing the storage box of the box means, the lid means, and the sealing means in the heating and cooking apparatus according to the sixth aspect of the present invention is outside the area of the three-part annular sealing area. Has a fixed position.

Then, even if the water vapor and the dew water adhering to the door means 3 enter the thread portion of the tapping screw as the fixing means, and the dew water penetrates to the abutting surface between the storage box and the lid means. Since the contact pressure between the storage box, the lid means, and the sealing means is large, the pressure of the dew water flowing through the threaded portion cannot enter the storage box.
Then, in order to prevent the water vapor adhering to the door means 3 and the dew condensation water from reaching the charged portion of various electric devices such as the operation circuit board unit and the display means 9 in the storage box, As a result of the dew condensation, a short circuit and a short circuit between adjacent charging units do not occur, and the operation of the heating cooking device can be controlled normally.

According to a seventh aspect of the present invention, the box means of the cooking device comprises a storage box, a lid means, and a fixing means for assembling and fixing the two parts in a structure capable of separating the two parts. There is a ring-shaped sealing means between the plane parts of the means.

A ring-shaped sealing means is sandwiched between the flat part of the screw head of the tapping screw as the flat part of the fixing means and the flat part of the fixing part of the lid means to be fixed. , And the flat part behind the screw head around the screw part is in contact with the annular sealing means. By tightening the tapping screw, the flat portion on the back of the screw head and the ring-shaped sealing means and the fixing part of the lid means are in close contact with each other. Even after reaching the screw head of the tapping screw as the fixing means by traveling along the outer wall surface, the gap between the flat part of the screw head of the tapping screw and the plane of the fixing part of the lid means to be fixed was tightly adhered by the ring-shaped sealing means. In this state, it is possible to prevent water vapor and condensed water adhering to the door means 3 from traveling along the outer wall surface of the box means and invading to reach the thread portion of the tapping screw.

The control circuit signal connection means of the heating cooking apparatus according to claim 8 of the present invention has a signal connection line for transmitting a circuit signal and a pipe for passing at least two or more signal connection lines.

The control circuit signal connecting means between the door means 3 and the cooking device main body has at least two pipes in the pipe.
Through more than one signal connection line. Since the plurality of signal connection lines fit in the pipe and are clean at the portion where the signal connection lines are exposed, the appearance quality of the heating and cooking device is not impaired. If the signal connection lines do not pass through the pipe, the control circuit signal connection means is deformed by the opening and closing operation of the door means 3, and external stress such as bending is applied to each of the plurality of signal connection lines. Since the signal connection lines are accommodated in the pipe, external stresses such as bending due to the opening / closing operation of the door means 3 are received in a state where the signal connection lines are bundled, so that external stresses such as bending are dispersed throughout the signal connection lines. Therefore, disconnection of the signal connection line due to external stress such as bending caused by the opening / closing operation of the door means 3 can be prevented. Also, when the door means 3 is assembled to the cooking device main body, external stress such as bending is applied to each of the signal connection lines, but a plurality of signal connection lines are accommodated in the pipe. External stress such as bending is dispersed throughout the signal connection line pipe, so that disconnection of the signal connection line during assembly work can be prevented.

[0026] The surface of the pipe of the control circuit signal connecting means sandwiched between the box means and the lid means of the cooking device according to the ninth aspect of the present invention is provided with a deformable buffer means, and the box means and the lid are provided. There is a configuration in which water does not enter the box means from between the means and the control circuit signal connection means.

The control circuit signal connection means, in which a soft rubber-like deformable buffer means is wound around the surface of the pipe, is pushed into the recess of the box means and is sandwiched between the cover means and the positioning means. Therefore, between the buffer means and the recess of the box means, between the buffer means and the lid means, and between the buffer means and the surface of the pipe, the buffer means is in a tightly contacted state without a gap, so that the door means 3 The pressure of the condensed water that is transmitted and conveyed even when the water vapor and the condensed water that adheres to the pipe reaches the pipe portion of the control circuit signal connection means sandwiched between the box means and the lid means I can't get inside. Then, in order to prevent the water vapor adhering to the door means 3 and the dew condensation water from reaching the charged portion of various electric devices such as the operation circuit board unit and the display means 9 in the storage box, As a result of the dew condensation, a short circuit and a short circuit between adjacent charging units do not occur, and the operation of the heating cooking device can be controlled normally.

[0028] A space is left between the inner surface of the pipe of the control circuit signal connection means and the signal connection line of the cooking device according to the tenth aspect of the present invention, and the air pressure inside the box means of the operation circuit means and the pipe inside the main body device. It has an air passage in which the pressure at the end is equal.

Since the internal pressure of the box means in which the water vapor adhering to the door means 3 and the condensed water do not invade is equal to the air pressure at the end of the pipe inside the main unit, the operation of the heating and cooking apparatus is limited to oven heating and the like. Therefore, even if the air inside the box means expands, a part of the air inside the box means pushes the air inside the pipe of the control circuit signal connection means from the pipe end inside the main unit to the inside of the device. Become. On the other hand, if the box means is a closed structure, the seal means for preventing the intrusion of dew condensation water in the box means is deformed and a gap is generated in the seal means due to expansion of air inside the box means when the oven is heated. As a result, the box means cannot maintain the function of preventing dew condensation water from entering. However, in this configuration, the air inside the box means is maintained at the same pressure as the air inside the pipe of the control circuit signal connection means and the air at the end of the pipe inside the main unit, so that the box means for preventing dew condensation water from entering. The dewed water intrusion prevention function of the sealing means can be maintained.

[0030]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a schematic side sectional view of a heating cooking apparatus according to Embodiment 1 of the present invention, FIG. 2 is a partial side sectional view of the heating cooking apparatus when a door is closed, and FIG. 4 is a partial cross-sectional perspective view of the cooking device when the door is opened, FIG. 4 is an external perspective view showing the cooking device, FIG. 5 is an external perspective view of the cooking device with the door opened, and FIG. FIG. 7 is an exploded perspective view of the operation circuit means of the cooking device, FIG. 8 is a partially exploded perspective view of the operation circuit means of the cooking device, and FIG. Perspective view of the operation circuit means of FIG. 10, FIG. 10 is a partial cross-sectional perspective view of the operation circuit means of the heating cooking apparatus, FIG. 11 is a cross-sectional view of the door means of the heating cooking apparatus, and FIG. FIG. 13 is a sectional view of the door means of the cooking device.

In FIG. 1, reference numeral 1 denotes a heating and cooking apparatus main body;
Is a heating chamber for storing food, 3 is a door means for opening and closing the opening of the heating chamber, and the door means 3 controls an operation of a heating unit such as an outer shell 4 of the door means and a high-frequency oscillator in the cooking device main body 1. The operation circuit means 8 and the like which clearly indicate various operation keys 7 and the like to be operated are arranged. In addition, the control circuit signal connecting means 11 passes through the lower part of the outer part 4 of the door means 3 from the side of the operation circuit means 8, and from the lower part of the heating cooking apparatus main body 1,
The electric signal connection to the drive circuit means 12 enters the partition plate 15
This is realized by connecting a connector to the relay connector 16 fixed to the connector. The machine room partitioned by the partition plate 15 is provided with a high-frequency oscillator 17 as a heating means, a motor 18 for rotating a dish on which food is placed, and a blower 19 for cooling these various electric devices. I have.

In FIG. 2, the door means 3 is located at the outer portion 4 of the resin molded product, the see-through barrier 5 at the front of the door means 3 for looking into the heating chamber 1, and the lower part of the door means 3. The operating circuit means 8 has a projection 21 provided outside the operating circuit means 8 in a recess 20 provided in a part of the outer shell 4 of the resin molded product. . Further, the door means 3 is provided with a rotating shaft 14a fixed to the tip of the door rotating support means 13a.
, The side portions are rotatably connected. The control circuit signal connecting means 11 is connected to the door means 3 from the side of the operation circuit means 8.
Through the vicinity of the rotating shaft 14a, which is the lower part of the outer shell 4,
The electric signal connection to the drive circuit means 12 enters the heating cooking device main body 1 from the lower portion of the heating cooking device main body 1 and is connected to a relay connector 16 fixed to the partition plate 15. Also,
In the control circuit signal connection means 11 connected to the relay connector 16, a signal connection line 22 comes out of the pipe 23 and is exposed in order to make a terminal connection of the connector portion. The pipe 23 of the control circuit signal connection means 11 extends from the vicinity of the relay connector 16 to the inside of the operation circuit means 8. Further, the control circuit signal connection means 11 is surrounded by a cylindrical signal connection protection means 24 in a butted configuration of discontinuous planes. Note that a heat-shrinkable tube can be used for the pipe 23 as a heating means when there is no electric heating. However, in the case of a silicon tube, the function as a tube pipe is not impaired even if an electric heating operation is performed. In addition,
As the signal connection line 22, a wire material that can withstand bending is used.

In FIG. 3, the pipe 23 is surrounded by a cylindrical signal connection protection means 24 in a discontinuous plane butting configuration. Further, the control circuit signal connection means 11 is connected to the partition plate 15.
The connector is connected to the relay connector 16 fixed to. In addition, the signal connection line 22 of the control circuit signal connection means 11 connected to the relay connector 16 is exposed from the pipe 23 in order to connect the terminals of the connector portion.

FIG. 4 shows an appearance in which the door means 3 of the cooking device body 1 is closed. In FIG. 5, the heating means 2 and the opening are shown by opening the door means 3 of the heating cooking device main body 1.

In FIG. 6, with the operation circuit means 8 incorporating the control circuit signal connection means 11 removed from the door means 3, various operation keys 7 for controlling the operation are provided on the front of the operation circuit means 8, And a display window section 25 for looking into the display means 9 for displaying the cooking status and the like. The operation circuit board unit is detached from the door means 3 because two screw fixing holes 26 at the lower part of the door means 3 are detachably fastened and fixed by tapping screws.
If you loosen and remove 27, it can be easily disassembled and removed as shown in this figure.

FIG. 7 is an exploded perspective view of the operation circuit means 8 in which the operation circuit board unit 28 is arranged out of the order of assembly. The operation circuit board unit 28 includes an operation switch 29 which opens and closes when various operation keys 7 are pressed, a display means 9 for displaying operation contents and a cooking situation, and a display LED 3.
0, a board connector 31 for connecting a signal circuit, a resistor 32 for performing signal processing, a capacitor and a microcomputer (not shown), and a semiconductor element (not shown) are circuit-connected by soldering.

On the other hand, the box means shown in an exploded perspective view in FIG. 7 has makeup display means 33 indicating the arrangement of the operation input keys 7 and a through-hole for passing the operation stroke transmitting pin in a portion corresponding to the operation input switch. Display panel means for resin molded product 34
Are brought into close contact with each other to form a decorative board 35. The way to adhere here is
When the cosmetic display means 33 and the display plate means 34 are pasted together with a double-sided tape so that there is no gap between them, or when the display display means 34 is resin-molded by insert molding the cosmetic display means 33 and the display board means 34. Let the makeup display means 33 and the display board means
A configuration in which there is no gap between 34 is realized. The cosmetic display means 33 uses a resin film of polyethylene terephthalate or polycarbonate.

Then, the decorative board 35 and the operation circuit board unit
Silicone putty or equivalent soft material is used as a sealing means for maintaining airtightness on the outer periphery of the abutting surface with the storage box 36 for storing and holding 28. Use a material with A current use case is silicon putty.

An operation stroke transmitting pin 37 is provided at a position corresponding to the operation input key 7 of the decorative display means 33 in the storage box 36 of the resin molded product, and the operation circuit means 8 is connected to the door means 3 on the upper wall surface. Also provided with a protrusion 21 for stopping, a notch on the side wall surface for drawing out the control circuit signal connection means 11.
Further, a through hole 39 is provided so that the light of the display means 9 and the display LED 30 reaches the makeup display means 33.

The seal means for sealing between the storage box 36 and the lid means 40 of the resin molded product uses an annular pipe 41 made of silicone rubber in order to realize a structure which can be easily disassembled without being fixed to each other. A groove 42 for positioning the annular pipe 41 is provided on one of the storage box 36 and the lid means 40. In addition, since the annular pipe 41 is used as the sealing means, the contact area when contacting the storage box and the lid means 40 is larger than that of the pipe filled with rubber, and the effect of preventing dew condensation water intrusion is large. Become.

A tapping screw 43 is used as a detachable fixing means for the storage box 36, the lid means 40, and the sealing means.

Since the screw hole 44 of the tapping screw 43 is located outside the sealing area of the annular pipe 41,
Is located outside the positioning groove. Then, with the sealing means of the annular silicon rubber ring 45 smaller than the diameter of the seat of the tapping screw 43, the gap between the lid means 40, the seat of the tapping screw 43 and the annular silicon rubber ring 45 disappears with the fastening of the tapping screw 43. The waterproof seal to the screw hole 44 can be made. In addition, this tapping screw
By providing grooves corresponding to the inner and outer diameters of the ring-shaped silicon rubber ring 45 in the lid means 40 for positioning the ring-shaped silicon rubber ring 45 smaller than the diameter of the seat 43, the ring-shaped silicon rubber ring 45 and the lid means More contact surfaces with 40,
The waterproof sealing effect on the screw holes 44 increases.

The surface of the pipe of the control circuit signal connection means 11 sandwiched between the storage box 36 of the box means and the lid means 40 is made of silicone rubber as a deformable buffer means 46. There is no gap between the control circuit signal connection means 11 and between the lid means 40 and the control circuit signal connection means 11 where water can enter. Note that the same effect can be obtained by wrapping a cushion rubber of independent foam as the deformable buffer means 46.

In FIG. 8, a display means 33 having makeup display means 33 showing the arrangement of the operation input keys 7 and a through-hole for passing an operation stroke transmitting pin at a portion corresponding to the operation input switch.
The close contact between the decorative display means 33 and the display plate means 34 at the outer peripheral portion 47 (indicated by a broken line) of the surface where the decorative display means 33 and the display plate means 34 are in contact with each other when the double-sided tape is adhered.
Has at least one circulation of the contacted portion.
Here, the outer peripheral portion 47 refers to the makeup display means 33 and the display plate means 34.
Means the part where the contact with the
3 shows a through hole 48 through which an operation stroke transmitting pin is provided, a square hole 49 for viewing the display means 9 for displaying the operation content, the cooking status, and the like, and the entire outer periphery.

In FIG. 9, the assembled structure of the operation circuit means 8 is viewed from the lid means 40 side, and a silicone putty 50 as a sealing means is protruded from the outer peripheral portion of the butted surface of the decorative plate 35 and the storage box 36. Part is visible. Also, the control circuit signal connection means 11 sandwiched between the storage box 36 and the lid means 40
On the surface of the pipe, silicone rubber is used as a deformable buffer means 46, and the storage box 36 and the control circuit signal connection means 11 are used.
There is no gap between the cover means 40 and the control circuit signal connection means 11 where water can enter.

In FIG. 10, the inside of the storage box 36 is seen in a partial cross section when the operation circuit means 8 is assembled from the lid means 40 side. A silicone putty 50 as a sealing means is filled in an outer peripheral portion of a mating surface of the decorative plate 35 and the storage box 36 into a putty groove 51 provided on at least one of the mating surfaces of the decorative plate 35 and the storage box 36. I have. Further, an annular pipe 41 made of silicone rubber as sealing means sandwiched between the storage box 36 and the lid means 40 is visible in a positioning groove 42 provided in the lid means 40.

In FIG. 11, the outer part 4 is located below the door means 3.
An operation circuit means 8 is incorporated so as to interrupt between the front and the perspective barrier 5 at the front. The display means 9 in the operation circuit means 8 is connected and fixed to the operation circuit board unit 28 by soldering. In addition, since the operation circuit means 8 is disposed under the transparent barrier 5 made of glass to which dew condensation of water vapor from the heating chamber 2 adheres and flows easily, the operation circuit means 8 is fixed at a position where a large amount of water droplets adhere. are doing.
In addition, a silicone putty 50 as a sealing means is provided on an outer peripheral portion of an abutting surface of the decorative board 35 and the storage box 36,
A putty groove 51 provided on at least one of the butting surfaces of the 36 is filled. Also, the storage box 36 and the lid means 40
An annular pipe 41 of silicone rubber as sealing means sandwiched between is provided with a positioning groove 42 provided on the lid means 40 and a storage box.
It is visible in a positioning groove 52 provided in 36.

In FIG. 12, an outer shell 4 is provided below the door means 3.
An operation circuit means 8 is incorporated so as to interrupt between the front and the perspective barrier 5 at the front. A bulging embossed portion provided on the decorative display means 33 of the decorative board 35 in the operation circuit means 8
The operation switch 29 abutting on the operation stroke transmission pin 37 close to the back surface of the 53 is connected and fixed to the operation circuit board unit 28 by soldering. In addition, heating room 2
Since the operation circuit means 8 is disposed below the transparent barrier 5 made of glass to which dew condensation of water vapor adheres and flows easily, the operation circuit means 8 is fixed at a position where a large amount of water droplets adhere. A silicone putty 50 as a sealing means is provided on the outer peripheral portion of the butted surface of the decorative board 35 and the storage box 36,
And a putty groove 51 provided on at least one of the butting surfaces of the storage box 36. An annular pipe 41 made of silicone rubber as sealing means sandwiched between the storage box 36 and the lid means 40 is provided with a positioning groove 52 provided in the storage box 36.
Is visible inside. Furthermore, the screw hole 44 of the tapping screw 43
Is located outside the sealing area of the annular pipe 41, and therefore is located outside the positioning groove 52 of the annular pipe 41. The sealing means of the ring-shaped silicone rubber ring 45 smaller than the diameter of the seat of the tapping screw 43 causes the lid means 40 and the tapping screw
The gap between the seat 43 and the ring-shaped silicone rubber ring 45 is eliminated, and a waterproof seal to the screw hole 44 can be made. In addition, by providing a groove corresponding to the inner diameter and the outer diameter of the annular silicon rubber ring 45 in the lid means 40 for positioning the annular silicon rubber ring 45 smaller than the diameter of the seat of the tapping screw 43,
The contact surface between the ring-shaped silicon rubber ring 45 and the lid means 40 increases, and the waterproof sealing effect on the screw hole 44 increases.

In FIG. 13, the outer portion 4 is located below the door means 3.
An operation circuit means 8 is incorporated so as to interrupt between the front and the perspective barrier 5 at the front. In addition, the transparent barrier 5 made of glass to which the dew of the steam from the heating chamber 2 adheres and flows easily.
Since the operation circuit means 8 is disposed under the operation circuit means 8, the operation circuit means 8 is fixed at a position where a large amount of water droplets adhere. It should be noted that a silicone putty 50 as sealing means protrudes from the outer peripheral portion of the butted surface of the decorative plate 35 and the storage box 36 and is seen. Further, an uneven fitting configuration between the decorative board 35 and the storage box 36 is realized by the protrusion front side 55 of the storage box 36 and the decorative board recess 56 of the decorative board 35. The concave and convex fit between the storage box 36 and the decorative board 35 is configured such that the silicone putty 50 as a sealing means between the storage box 36 and the decorative board 35 is applied, and the silicone putty 50 is left for a long time until it hardens. Thus, the sealing means between the storage box 36 and the decorative board 35 is fixed so as not to be separated and decomposed. Furthermore, the fitting configuration of the unevenness between the storage box 36 and the lid means 40 is configured such that the projection front side 55 of the storage box 36 and the lid
This is realized by the lid recess 57. Then, a protrusion 21 protruding from the side wall of the storage box 36 of the operation circuit means 8 to a recess 20 provided in a part of the outer shell 4 of the resin molded product.
Is locked. It is shown that the screw holes 59 of the screw hole projections 58 protruding from the side wall of the storage box 36 can be aligned with the screw fixing holes 26 provided in the outer shell 4.

In FIG. 14, a part of FIG. 7 is replaced with another embodiment. Next, the operation and action will be described. The food is heated in the heating chamber 2, and the water vapor from the food adheres to the door means 3 to form dew condensation water and flows into the operation circuit means 8 incorporated in the door means 3. When it adheres, the operation circuit means 8 constitutes a box means in which the water vapor and the dew condensation water adhering to the door means 3 cannot enter the inside.
The water vapor adhering to the surface and the dew water form the operation circuit board unit
Since it does not reach the positions of the charged parts of various electric devices such as 10 and the display means 9, short-circuit / leakage phenomenon between the adjacent charged parts does not occur due to the condensation of the attached water vapor, and the cooking device can operate normally. Operation can be controlled.

Then, as a structure of the box means, a silicon putty is used.
Sealing means for maintaining the airtightness by 50 penetrates into the gap appearing on the outer periphery of the butted surface of the decorative plate and the storage box, and the gap of the outer periphery of the butted surface of the decorative plate and the storage box disappears,
There is no gap into which the condensed water of water vapor generated due to the heating operation of the food can enter.

The makeup means is constituted by the box means.
Since the position where the contactable surface is interrupted at the outer peripheral portion of the surface in contact with 33 and the display plate means 34 is the outer peripheral portion of the contact surface,
Since at least one portion of the outer peripheral portion circulates at a portion where the makeup display means 33 and the display plate means 34 are in close contact with each other, the entrance path of the steam adhering to the door means 3 and the condensed water into the box means is blocked. I have.

The box means is composed of a storage box 36, a lid means 40, and a silicone rubber annular pipe as a sealing means.
41 and the three are compressing each other. Then, even if the water vapor and the condensed water adhering to the door means 3 try to enter between the storage box 36, the lid means 40 and the sealing means, the three members of the storage box 36, the lid means 40 and the sealing means Is large, the pressure of the condensed water flowing down cannot enter the storage box 36.

Then, the storage box 36 of the box means and the lid means 40
And a tapping screw 43 as a detachable fixing means that can be easily disassembled without being fixed to the sealing means. By this, even if it is necessary to take out various electric devices such as the operation circuit board unit 28 and the display means 9 from the box means, since the tapping screw 43 is provided as a detachable fixing means which can be easily disassembled, it is necessary to disassemble it. Since the used box means can be used as it is, it is not necessary to spend a large amount of money for repairing a failure in the market.

As a structure of the box means, a tapping screw 43 as a fixing means is fixed by tightening the tapping screw 43 outside the region of the annular sealing area of the storage box 36, the lid means 40, and the annular pipe 41 of silicone rubber as the sealing means. Therefore, the pressure of the condensed water flowing down the threaded portion cannot enter the storage box 36.

Since the box means has a sealing means of a ring-shaped silicon rubber ring 45 between the flat part of the screw head of the tapping screw 43 as the fixing means and the flat part of the lid means 40, the tapping screw 43 is used. By tightening, the flat part on the back side of the screw head, the ring-shaped sealing means and the fixing part of the lid means are in close contact with each other, and the water vapor and the dew water adhering to the door means 3 are transmitted along the outer wall surface of the box means and penetrate. do it,
It does not reach the thread of the tapping screw 43.

The control circuit signal connection means 11 passes through at least two signal connection lines in the pipe.
And at the place where the signal connection line is exposed,
Since a plurality of signal connection lines are accommodated in the pipe and are neat, the appearance quality of the heating and cooking device is not impaired. If the signal connection lines do not pass through the pipe, the control circuit signal connection means is deformed by the opening and closing operation of the door means 3, and external stress such as bending is applied to each of the plurality of signal connection lines. Since the signal connection lines are accommodated in the pipe, external stresses such as bending due to the opening / closing operation of the door means 3 are received in a state where the signal connection lines are bundled, so that external stresses such as bending are dispersed throughout the signal connection lines. Therefore, disconnection of the signal connection line due to external stress such as bending caused by the opening / closing operation of the door means 3 can be prevented. Further, the door means 3 is connected to the heating and cooking device main body 1.
External stress such as bending is applied to each of the signal connection lines 22 when the signal connection line 22 is assembled to the heating and cooking device main body 1 because a plurality of signal connection lines 22 are accommodated in the pipe 23. External stress such as bending is dispersed throughout 23, so that disconnection of the signal connection line 22 during assembly work can be prevented.

The surface of the silicon pipe 23 of the control circuit signal connecting means 11 sandwiched between the storage box 36 of the box means and the lid means 40 is provided with a silicone rubber 46 as a deformable buffer means. Since it is pressed into the notch 38 of the box means and is sandwiched between the lid means in a positioned state, the gap between the silicon rubber 46 and the notch 38 of the box means, the silicon rubber 46 and the lid Between the means and between the silicon rubber 46 and the surface of the pipe 23 made of silicon material, the silicon rubber 46 is soft and in close contact with no gap. Even if it reaches the pipe 23 of the control circuit signal connection means 11 sandwiched between the lid means 40, it cannot enter the storage box by the pressure of the dew condensation water.

The pipe of the control circuit signal connection means 11
A gap is left between the inner surface of the box 23 and the signal connection line 22, and an air passage is provided in which the air pressure inside the box means of the operation circuit means 8 is equal to the air pressure at the end of the pipe 23 inside the main unit. Since the air inside the pipe 23 of the control circuit signal connection means 11 and the air at the terminal end of the pipe 23 inside the main unit are maintained at the same pressure, the silicon as the sealing means for preventing the intrusion of dew condensation water in the box means The putty 50 and the annular pipe 41 made of silicone rubber can maintain the function of preventing dew condensation water from entering.

(Embodiment 2) FIG. 14 is an exploded perspective view of an operation circuit means of a heating and cooking apparatus according to Embodiment 2 of the present invention.

The difference from the first embodiment is that, in the first embodiment, the screw holes 44 of the tapping screws 43 are located outside the sealing area of the annular pipe 41, so that they are located outside the positioning grooves 42 of the annular pipe 41. Will be. However, in the second embodiment, since the screw hole 44 of the tapping screw 54 is located in the sealing area of the annular pipe 41, the positioning groove of the annular pipe 41 is used.
It will be located inside 42. Further, in the first embodiment, the metal part of the screw thread of the tapping screw 43 is exposed, but in the second embodiment, a resin film is attached to the screw thread of the tapping screw 54 so as to cover the metal part. . And
A tapping screw 54 is used as a detachable fixing means for the storage box 36, the lid means 60, and the sealing means.

The components having the same reference numerals as those in the first embodiment have the same structure, and a description thereof will be omitted. Next, the operation and action will be described. As a configuration of the box means, the tapping screw 54 as the fixing means is provided within the region of the annular sealing range of the storage box 36, the lid means 60, and the annular pipe 41 made of silicone rubber as the sealing means. Since the screw 54 is fastened and fixed, the dew water flowing down the screw thread portion can enter the storage box 36. However, since the box means has a sealing means of a ring-shaped silicon rubber ring 45 between the flat part of the screw head of the tapping screw 54 as a fixing means and the flat part of the lid means 40 as a structure of the box means, by tightening the tapping screw 54 The flat part on the back of the screw head, the ring-shaped sealing means and the fixing part of the lid means are in close contact with each other, and the water vapor and the dew condensation water adhering to the door means 3 are transmitted along the outer wall surface of the box means and enter.
It does not reach the thread portion of the tapping screw 54. Also, since a resin film is attached to the screw thread of the tapping screw 54 used here so as to cover the metal part, the screw thread of the tapping screw 54 for fixing the lid means 60 to the box means 36 and the screw means of the lid means 60 are provided. The gap between the screw holes 44 is closed by shavings of a resin film that covers the metal part of the screw thread, and the door means 3
The water vapor adhering to the box and the dew condensation water are transmitted along the outer wall surface of the box means and do not reach the thread portion of the tapping screw 54.

[0064]

As described above, the operation circuit means of the heating and cooking apparatus according to the first aspect of the present invention has a structure in which water vapor adhering to the door means and its condensed water cannot enter the inside. Since the water vapor and the condensed water adhering to the door means 3 do not reach the positions of the charged parts of the various electric devices such as the operation circuit board unit 10 and the display means 9, the adhering water vapor condenses between the adjacent charged parts. The short circuit / leakage phenomenon does not occur, and the operation of the heating cooking device can be controlled normally.

Further, the box means constituting the operation circuit means of the heating and cooking apparatus according to the second, third, fourth, sixth, seventh and ninth aspects has operation input key arrangement as a component. A display panel means having a through-hole through which an operation stroke transmission pin is passed in a portion corresponding to the operation input switch, a storage box for storing and holding the operation circuit board unit, and Lid means for enclosing the operation circuit board unit, tapping screws as detachable fixing means that can be easily disassembled, and a ring-shaped seal for closing a gap between the flat part of the screw head of the tapping screw as this fixing means and the lid means. A silicon rubber ring as a means, a control circuit signal connection means, and a silicone rubber as a buffer means wound around the surface of the pipe of the control circuit signal connection means; As a sealing means for sealing between the box and the lid means of the resin molded product, a silicone rubber annular pipe which can be easily disassembled without being fixed and a gap between a storage box and a display board means as a decorative board. There is a silicone putty as a sealing means for maintaining airtightness, and an adhesive means between the decorative display means and the display plate means for preventing water from entering, and water vapor adhering to the door means inside the box means. And the condensed water cannot enter the inside, so that the water vapor and the condensed water adhering to the door means do not reach the positions of the charged portions of various electric devices such as the operation circuit board unit and the display means. As a result of the dew condensation of the water vapor, short-circuiting and leakage between adjacent charged portions do not occur, and the operation of the cooking device can be controlled normally. Further, a storage box of box means constituting operation circuit means of the heating cooking device according to claim 5, a lid means,
Tapping screws are used as detachable fixing means which can be easily disassembled without being fixed to the sealing means. However, when the operation circuit board unit and the display means 9 are not detachable, the seal means such as the silicon putty of the means for preventing the intrusion of dewed water in the box means must be destroyed when the operation circuit board unit and the display means 9 are broken down. In addition, it was necessary to prepare new storage boxes and new lid means, and material costs required a lot of costs in addition to repairs. However, since the tapping screw is used as a detachable fixing means which can be easily disassembled without fixing the parts as in the configuration of the present invention, various electric devices such as an operation circuit board unit and a display means are selected from the box means. Even if it is necessary to take out the box, it has removable fixing means that can be easily disassembled, so that the box means used until disassembly can be used as it is, so it is not necessary to spend a lot of money on repairing failures in the market This has the effect.

Also, since the control circuit signal connection means of the heating cooking apparatus according to claim 8 passes at least two or more signal connection lines in the pipe, a plurality of signal connection lines fit in the pipe and are clean. Therefore, the appearance quality of the heating cooking device is not impaired. Further, since a plurality of signal connection lines are accommodated in the pipe, external stresses such as bending caused by opening / closing operation of the door means 3 are received in a state where the signal connection lines are bundled, so that the entire signal connection lines are bent. Since the external stress is dispersed, disconnection of the signal connection line due to external stress such as bending caused by the opening / closing operation of the door means 3 can be prevented.
Also, when the door means 3 is assembled to the cooking device main body, external stress such as bending is applied to each of the signal connection lines, but a plurality of signal connection lines are accommodated in the pipe. External stress such as bending is dispersed throughout the signal connection line pipe, so that disconnection of the signal connection line during assembly work can be prevented. This has the effect.

Further, a gap is left between the inner surface of the pipe of the control circuit signal connection means and the signal connection line of the cooking device according to the tenth aspect, and the air pressure inside the box means of the operation circuit means and the end of the pipe inside the main body device. Since the air path is equal to the air pressure of the section, even if the air inside the box means expands due to the operation of the heating and cooking device such as oven heating, a part of the air inside the box means is controlled. The air in the pipe of the circuit signal connection means is pushed out from the pipe end inside the main unit to the inside of the device. Therefore, regardless of the state of expansion and contraction of the air inside the box means, the air inside the box means becomes the same as the air pressure at the end of the pipe inside the main unit. For this reason, the effect that air pressure is applied to the silicone putty or the adhesive as the sealing means to generate a gap in the silicone putty or the adhesive as the sealing means and that the phenomenon that dew water enters the box means does not occur. is there.

[Brief description of the drawings]

FIG. 1 is a schematic side sectional view of a cooking device according to a first embodiment of the present invention.

FIG. 2 is a partial side cross-sectional view of the cooking device when a door is closed.

FIG. 3 is a partial cross-sectional perspective view when the door of the cooking device is opened.

FIG. 4 is an external perspective view showing a door of the cooking device.

FIG. 5 is an external perspective view of the cooking device with a door opened.

FIG. 6 is a simplified exploded perspective view of a door means of the cooking device.

FIG. 7 is an exploded perspective view of an operation circuit means of the cooking device.

FIG. 8 is a partially exploded perspective view of an operation circuit means of the cooking device.

FIG. 9 is a perspective view of operation circuit means of the cooking device.

FIG. 10 is a partial cross-sectional perspective view of an operation circuit means of the cooking device.

FIG. 11 is a sectional view of a door means of the cooking device.

FIG. 12 is a sectional view of a door means of the cooking device.

FIG. 13 is a sectional view of a door means of the cooking device.

FIG. 14 is an exploded perspective view of an operation circuit unit of the heating cooking device according to the second embodiment of the present invention.

FIG. 15 is a partial cross-sectional perspective view when the door of the conventional cooking device is opened.

[Explanation of symbols]

 2 Heating room 3 Door means 8 Operation circuit means 11 Control circuit signal connection means 12 Drive circuit means 16 Relay connector 17 High frequency oscillator (Heating means) 33 Makeup display means 34 Display board means 35 Decorative board 36 Storage box 40 Cover means 41 Ring pipe 45 Silicone rubber ring 46 Buffer means 50 Silicone putty

 ────────────────────────────────────────────────── ─── Continued from the front page (72) Inventor Shigemi Fujii 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture F-term in Matsushita Electric Industrial Co., Ltd. (reference) 3K086 AA05 AA06 BA08 CC01 CC06 CC11 CD03 EA01 FA06 FA08 3K090 AA03 AA05 AA07 AA11 AB01 BA01 BB01 CA01 EA01 EB04 EB16 EB17 EB19 EB31 EC02 3L086 AA01 BC20 DA01 DA16 4E360 AA02 AB04 AB05 AB14 AB33 AB61 BA02 BA04 BA06 BA15 BB02 BB12 BB16 BB22 BB28 BC02 BC05 BD03 BD05 CA10 EA13 GA02 EA13 EA13 EA13 EA13 EA13 EA13 EA13 EB23 GA53 GB73 GC08

Claims (10)

[Claims] 1. A heating chamber for storing food, heating means for heating the food, an opening for putting food into the heating chamber, door means for closing the opening, Control circuit means for controlling operation, wherein the control circuit means is an operation circuit means incorporated in the door means, a drive circuit means incorporated in a main unit including the heating chamber, A control circuit signal connection means for connecting the circuit means and the drive circuit means with an electric signal, wherein the operation circuit means has a box means in which water vapor adhering to the door means and the condensed water cannot enter the inside; Cooking device. 2. The box means includes a decorative board indicating an operation input key arrangement, and a storage box for storing and holding the operation circuit board unit, and has an airtight seal at an outer peripheral portion of an abutting surface of the decorative plate and the storage box. 2. The cooking device according to claim 1, further comprising a sealing means. 3. A decorative board comprising: makeup display means for indicating an operation input key arrangement; and display board means having a through-hole for passing an operation stroke transmitting pin at a portion corresponding to the operation input switch.
3. The cooking device according to claim 2, wherein the makeup display means and the display board means are in close contact with each other to maintain airtightness. 4. The box means includes a storage box for storing and holding the operation circuit board unit, and a lid means for enclosing the operation circuit board unit in the storage box, and an abutting surface of the storage box and the lid means. 2. The cooking device according to claim 1, further comprising a sealing means for maintaining airtightness at an outer peripheral portion of the cooking device. 5. The cooking device according to claim 1, wherein the storage box of the box means, the lid means, and the sealing means have detachable fixing means which can be easily disassembled without being fixed to each other. 6. A fixing means for assembling and fixing the storage box of the box means, the lid means, and the sealing means in a structure capable of being separated from each other, has a fixing position outside the area of the three-part sealing area. Item 2. The cooking device according to Item 1. 7. A storage box comprising box means, lid means, and fixing means for assembling and fixing said two parts in a structure capable of being disassembled,
2. The heating and cooking apparatus according to claim 1, further comprising a ring-shaped sealing means between the flat part of the fixing means and the flat part of the lid means. 8. The cooking device according to claim 1, wherein the control circuit signal connection means has a signal connection line for transmitting a circuit signal and a pipe for passing at least two or more signal connection lines. 9. A control circuit signal connecting means, which is sandwiched between a box means and a lid means, is provided with a deformable buffer means on a surface of a pipe between the box means and the lid means and the control circuit signal connecting means. 2. The cooking device according to claim 1, wherein a configuration is realized in which water does not enter the inside of the box means. 10. An air passage in which a space is left between the inner surface of the pipe of the control circuit signal connection means and the signal connection lines, and the air pressure inside the box means of the operation circuit means is equal to the air pressure at the end of the pipe inside the main unit. The cooking device according to claim 1, further comprising: