JP2020134072A - Heating cooker - Google Patents

Abstract

To provide a heating cooker which has a door with good cleanability.SOLUTION: A heating cooker includes an openable/closable door at a body housing. The door includes: a door base; a door frame for covering at least an upper part side of the door base; a transparent part whose visual field is from an opening to a heating chamber; and a protrusion part integrally formed with the door frame so as to protrude in the front direction at substantially the same height at the upper part of the door frame. The protrusion part has an opening for holding. On the lower side of the protrusion part, a handle part is provided so as to hold by a hole.SELECTED DRAWING: Figure 4

Description

The present invention relates to a cooking device such as an electric microwave oven, a microwave oven, or an electric oven having a high-frequency heating means composed of a magnetron or the like.

The cooking cooker places an object to be cooked in a heating chamber and cooks it by heating. In order to store the object to be cooked in the main body, the cooker opens and closes at the front part of the main body housing via a lower opening / closing mechanism. It has a door that can be provided. This door is described in, for example, Japanese Patent Application Laid-Open No. 2007-3138. That is, it is composed of a door frame and a handle for the operator to grasp for opening and closing the door. The handle is separate from the door frame, and is provided with a step from the upper part of the door frame.

JP-A-2007-3138

In the above-mentioned conventional microwave oven, a handle is attached to the door arm, but since there is a step corresponding to the thickness of the door arm, dust easily collects, and there is a problem in cleanability.

Therefore, an object of the present invention is to provide a cooking device with a door having good cleanability.

The cooking cooker of the present invention includes a door that can be opened and closed in the main body housing, and the door is provided on the door frame, and the door is formed so as to maintain and extend the height of the upper surface of the door frame.

Alternatively, the main body housing is provided with a door that can be opened and closed, and the door and the housing are configured to have the same height.

Alternatively, the main body housing is provided with a door that can be opened and closed, the door has a door frame, and the door frame has a protrusion portion integrally formed so as to project forward at the same height. , The handle body is fixed to the lower side of the protrusion.

According to the present invention, cleanability is improved.

It is an external view of the range which concerns on this invention. It is an external view of the range when the door is opened. It is sectional drawing which shows the schematic structure of the inside. It is the appearance explanatory view of the door. It is an assembly drawing of a door. It is the appearance explanatory view of the handle body. It is the appearance explanatory drawing of the door arm. It is an external explanatory view of a door frame and a door base. It is the appearance explanatory drawing of the choke cover. It is external drawing of the microwave oven which concerns on 2nd Embodiment of this invention. It is an external view of a frame body. It is an external view of a frame body.

Hereinafter, with reference to FIGS. 1 to 9, the cooking cooker according to the present invention will be specifically described by taking as an example an electric microwave oven having a high-frequency heating means composed of a magnetron or the like. The present invention can also be applied to a cooking device such as a microwave oven or an electric oven. The same parts and directions are shown with the same reference numerals, and duplicate explanations will be omitted.

First, with reference to FIG. 1, a schematic structure of an electric microwave oven (hereinafter referred to as a range) according to this embodiment will be described. FIG. 1 is an external view of a microwave oven, which is an external view in a state where the door is closed. FIG. 2 is an external view with the door open.

In FIG. 1, the microwave oven 400 shown as a whole is attached to a housing 100 constituting a heating chamber 10 for storing, heating, and baking food, and to the housing 100 so as to be openable and closable via an opening / closing mechanism unit 300. It is composed of a door 1. The housing 100 covers the upper and lower surfaces, both side surfaces, and the back surface other than the front surface of the heating chamber 10, and the door 1 is configured to cover the front surface of the heating chamber 10. Therefore, by opening the door 1 from the state of FIG. 1 to the state of FIG. 2, food can be taken in and out of the heating chamber 10.

The housing 100 is composed of a main body housing 101 that constitutes the periphery of the heating chamber 10 and a base 102 at the lower part of the main body housing 101. In the microwave oven 400 according to this embodiment, since steam can be used for cooking, a removable water tank 90 for supplying the water required to generate the steam is provided on the front surface of the base 102. Prepared on the side.

In this embodiment, the handle 410 (also referred to as the handle portion 410) is provided on the front surface of the door 1, and in the state of FIG. In the state of FIG. 1 in which the food is stored in the heating chamber 10 and cooked in a widely open form, the handle 410 and the operation unit 9 are exposed to the front surface so that cooking conditions can be input and operation instructions can be given. It is configured as follows. As will be described later, the handle 410 (handle portion 410) includes a protrusion 3b formed on the upper surface 3a of the door frame 3 and a handle main body 4.

Further, a large transparent window (plate material) 7 is provided in the center of the door 1 so that the inside of the heating chamber 10 during cooking can be peeked.

Further, in the range 400, the base 102 is arranged below the door 1 that can be opened and closed via the opening / closing mechanism 300 that is arranged below.

The internal structure of the range 400 will be described with reference to FIG. FIG. 3 is a cross-sectional view showing a schematic structure inside.

In FIG. 3, the microwave oven 400 includes a heating chamber 10 for accommodating an object to be cooked such as food to be cooked, a non-rotating table 13 on which the object to be cooked 11 provided on the bottom surface 12 of the heating chamber 10 is placed, and heating. It is composed of a hot air unit 14 that circulates hot air in the chamber 10, a magnetron 15 that is a heating source for microwave oven cooking, a waveguide 16 that guides microwaves, a rotating antenna 17 that irradiates the heating chamber 10 with microwaves, an antenna motor 18, and the like. ing.

Since the magnetron 15, the waveguide 16, the rotating antenna 17, the antenna motor 18, and the like are already known, detailed description thereof will be omitted, but these components are located in the lower part of the heating chamber 10 as shown in the drawing. It is located in the machine room to be formed.

The hot air unit 14 used for oven cooking constitutes a hot air supply means, and includes a duct 19, a blower means 20 such as a fan rotatably provided in the center of the duct 19, and an outer circumference of the blower means 20. It is composed of heating means 21 such as a heater provided on the upper and lower sides of the air flow, that is, on the outflow side of the air flow, a fan motor 22 attached to a duct 19, and the like, and is arranged on the back wall of the main body housing 101.

Further, the back wall of the heating chamber 10 is provided with a suction hole 23 and a blowout hole 24 composed of a large number of punching holes, the suction hole 23 is provided at a substantially central portion of the air blowing means 20, and the blowout hole 24 is vertically and vertically. It is provided at a position facing the heating means 21 of the above.

The housing 100 of the electric microwave oven of FIG. 3 is a so-called turntableless microwave oven in which there is no rotating table in the center of the heating chamber 10.

Here, reference numeral 25 denotes a steam generating means, which is composed of a container to which water is supplied (not shown), a heater for heating the container, a temperature detector such as a thermistor (not shown), and the like. Is arranged between the hot air unit 14 and the back wall of the main body housing 101. The steam generating means 25 is configured so that the temperature can be raised to a predetermined temperature of about 30 seconds to 1 minute or less. Water is supplied from the water tank 90 provided in the base 102 via the water pump 28.

The steam outlet is connected to the steam generating means 25, and the tip thereof is opened so as to blow toward the air flow flowing out from the blowing means 20.

Next, the operation method of the range 400 will be described. A microcomputer (not shown) receives an operation instruction from the operation unit 9 and performs comprehensive operation control by referring to information from various sensors (not shown).

The operation unit 9 according to this embodiment includes a menu selection dial 290 arranged on one side (left side) of the design surface 6 of the operation unit, a selection key group 260 arranged on the left and right sides of the display unit 270, and the like. Will be done.

For example, after the food is stored in the heating chamber 10 and the door 1 is closed, the user operates the menu selection dial 290 and the selection key group 260 to select the function mode, set the temperature, and set the heating time. Basic operations can be performed by operating the start key.

Further, by operating the menu selection dial 290 and the selection key group 260 to select a menu, the microcomputer can operate under the operating conditions corresponding to the menu. The operating conditions of each menu are stored in the storage unit of the microcomputer. Each of these menus is divided into a plurality of parts according to the type of dish, processing, and the like, and when the ID number of the menu is selected for operation, the microcomputer calls the operation condition corresponding to the ID number from the storage unit and operates the microcomputer.

When the menu selection dial 290 and the selection key group 260 are operated after the food is stored in the heating chamber 10 and the door 1 is closed, the operating conditions of the ID number displayed on the display unit 270 are called from the storage unit. Start the operation according to the operating conditions.

Next, the details of the door 1 will be described with reference to FIGS. 4 to 7. FIG. 4 is a schematic configuration diagram of the door 1. FIG. 5 is an assembly drawing of the door 1. FIG. 6 is an explanatory view of the appearance of the handle body 4, and FIG. 7 is an explanatory view of the appearance of the door frame 3.

As shown in FIGS. 4 and 5, the door 1 is transparent with a door base 2, a door cover 3, a handle body 4, an operation panel 5 including an operation board (not shown), a design surface 6 of the operation unit, and the like. It is composed of a window (plate material) 7, an itaosae 8, and a chalk cover 214. The operation unit 9 is composed of the operation panel 5 and the design surface 6 of the operation unit.

The handle 410 (also referred to as a handle portion 410) includes a handle main body 4 and a protruding portion 3b formed on the upper surface 3a of the door frame 3.

In FIG. 5, the door base 2 forms the skeleton of the door 1. The door base 2 is punched to prevent radio wave leakage so as to look into the heating chamber 10, and is provided with a choke structure to prevent radio wave leakage from the heating chamber 10 when the door 1 is closed.

In FIG. 8, 219 is a claw, which is provided at several points on the door frame 3 and is hooked on the square hole of the fitting portion 220 of the choke cover 214 to fix the choke cover 214 to the door frame 3. As shown in FIG. 9, the fitting portion 220 is a square hole provided at the edge portion of the choke cover 214, and when the choke cover 214 is mounted on the door frame 3, the upper portion of the claw 219 is inclined in the mounting direction. Therefore, the edge of the choke cover 214 easily gets over the claw 219, the claw 219 is caught in the square hole of the fitting portion 220, and the choke cover 214 cannot be removed from the door frame 3.

The door 1 is a door base 2 assembled with a door cover 3, a handle body 4, an operation panel 5, a design surface 6 of the operation part, a transparent window (plate material) 7, and a choke 8 (8-1, 8-2). Is fitted and formed together with the choke cover 214.

As shown in FIG. 7, the door frame 3 includes an upper surface 3a, a side portion 3d, and a lower surface 3c. Further, on the upper surface 3a, a resin protruding portion 3b formed by integral molding or the like is formed together with the side portion 3d and the lower surface 3c. A hole (grip opening) 3g for hanging a hand is formed in the protruding portion 3b. Further, a boss 3h for screwing is provided on the lower surface of the protruding portion 3b. Further, a space 3d is provided below the upper surface 3a and the protruding portion 3b when viewed from the front surface of the door frame 3, and a recess 3f for screwing is provided therein.

FIG. 6 shows the details of the handle body 4. The view seen from above the front side is shown as FIG. 6 (a), and the view seen from the rear side is shown as FIG. 6 (b).

The handle body 4 is composed of a base portion 4a and an extension portion 4b. The base portion 4a and the extension portion 4b are integrally formed of resin, for example, by injection molding.

A hole (grip opening) 4g for holding a hand is formed between the base portion 4a and the extension portion 4b.

The handle body 4 has a space 4c inside the extension portion 4b, and a convex portion 4i for screwing and a reinforcing rib are provided in the space 4c.

There is a space 4d inside the base 4a, in which a boss 4h for screwing and a reinforcing rib are provided.

The extension portion 4b of the handle body 4 and the projecting portion 3b of the door frame 3 are overlapped and fixed to each other.

Further, the outer shape of the extension portion 4b is substantially the same as the outer shape of the protruding portion 3b of the door frame 3, so that the extension portion 4b fits perfectly when overlapped.

A protrusion 4f is formed in the hole (grip opening) 4g on which the hand of the handle body 4 is hung, and the protrusion 4f fits loosely on the inner circumference of the hole (grip opening) 3g on which the hand of the doorway 3 is hung. It is formed to fit in.

In order to incorporate the handle body 4 into the door frame 3, the handle body 4 is attached with screws below the upper surface 3a and the protrusion 3b of the door frame 3. In this way, the handle body 4 is fixed to the door frame 3 with screws to form the handle body 4.

A transparent window (plate material) 7 is sandwiched between the Itaosae 8 and attached to the opening of the door frame 4.

The handle body 4 has a space 4c inside the extension portion 4b, in which a convex portion 4i for screwing and a reinforcing rib are provided, and the handle body 4 has a space 4d inside the base portion 4a. A boss 4h for screwing and a reinforcing rib are provided in the boss 4h for screwing, while the door frame 3 is provided with a boss 3h for screwing on the upper surface 3b and a recess 3f for screwing in the space 3d. The handle body 4 is fixed to the door frame 3 with screws.

A recess 3f and a boss 3h for screwing are provided below the upper surface 3a and the protrusion 3b (also referred to as an extension 3b) of the door frame 3, and the protrusion 4h and the boss for screwing are provided on the base 4a and the extension 4b of the handle body. The 4i is fitted and fixed to the door base 2 with screws.

As a result, the upper surfaces 3a and 3b are not strong when viewed from the front surface of the door frame, but they can be supported by assembling the handle body 4 to compensate for the lack of strength.

A hole 4e is provided between the handle body 4a and the extension 4b to suppress heat transfer from the body, making it easy to grip. The hole 4e is partially covered with the upper surface 3a of the door frame, which makes it less noticeable and maintains the design.

A hole (3g, 4g) for holding a hand is opened between the upper surface 3a and the protruding portion 3b of the door frame and between the base portion and the extension portion 4b of the handle body 4a to form a handle portion.

The operation unit 9 is attached above the lower surface 3c of the door frame with resin rigidity and screws. The design surface 6 of the operation unit is fitted to the front surface of the operation panel 5 and attached.

The transparent window (plate material) 7 is fitted between the handle body 4 and the operation unit 9, the upper part of the transparent window (plate material) 7 is held by the handle body 4, and the lower part of the transparent window (plate material) 7 is the operation unit 9. Both ends of the transparent window (plate material) 7 are fixed to the door frame 3 with Itao Sae 8.

As described above, the upper surfaces 3a and 3b of the door frame are connected and there is no step, so that the cleaning property is good. The upper surface 3b of the door frame can have the design of the handle portion.

In addition, the number of parts can be reduced while maintaining the design of the handle as compared with the conventional microwave oven, and the cost and assembling property are good. That is, the appearance can be aesthetically pleasing.

According to the above, it is possible to provide a cooking device having a door having a handle portion that is easy to maintain. In addition, the lower part of the door can be widened, which increases the degree of freedom in design.

10A and 10B are external views showing the frame body 3 shown in FIG. 7 in more detail. FIG. 10A is a front view, FIG. 10B is a right side view, and FIG. 10C is a left side view. 10 (d) is a plan view, FIG. 10 (e) is a bottom view, FIG. 10 (f) is a rear view, FIG. 10 (g) is a perspective view, and FIG. 10 (h) is a central vertical sectional view (A-). A cross-sectional view).

In FIG. 10, the door frame 3 is a frame body used in a microwave oven, and by attaching a handle body 4, an operation unit 9, a transparent window (plate material) 7, etc. (see FIG. 5) to the door frame 3, an electron is used. It constitutes an opening / closing door (see FIG. 4) of the microwave oven.

In FIG. 10 (g), the thin line 1000a not shown in other drawings is for specifying the shape of the three-dimensional surface.

11 and 12 are external views of the microwave oven according to the second embodiment of the present invention, FIG. 11A is a front view, FIG. 11B is a right side view, and FIG. 11C is a left side view. A top view, FIG. 11 (d) is a plan view, FIG. 12 (e) is a bottom view, FIG. 12 (f) is a rear view, FIG. 12 (g) is a perspective view, and FIG. 12 (h) is A without an internal mechanism. -A enlarged sectional view.

Here, in the following description, duplicate description such as parts and arrows similar to those in the above-described embodiment will be omitted. In particular, since the portion of the door frame 3 excluding the upper surface 3a and the handle body 4 is the same as that in FIG. 1, the drawings are shown by broken lines, and the description thereof will be omitted. That is, in the external drawing in this embodiment, characteristic parts (partial designs) are shown by solid lines, and parts similar to those in the above-described embodiment are shown by broken lines.

In FIGS. 11 and 12, this embodiment is characterized in that the protruding portion 3b of the upper surface 3a of the door frame 3 is bent forward to cover the front surface of the handle body 4 to form an L-shaped handle portion 1100a. It has.

And, by providing this characteristic form, it is possible to obtain the same action and effect as the above-described embodiment.

In FIGS. 11 and 12, thin lines 1100b not shown in other drawings are for specifying the shape of the three-dimensional surface.

Further, the alternate long and short dash line 1100c is a line indicating only the boundary between the solid line portion (the portion for which the design registration is to be received as a partial design) and the broken line portion (other portion).

1 ... Door 2 ... Door base 3 ... Door frame 4 ... Handle body 5 ... Operation panel 6 ... Design surface of operation part 7 ... Transparent window (plate material)
8 ... Itaosae 9 ... Operation unit 10 ... Heating chamber 11 ... Cooking 12 ... Bottom 13 ... Table 14 ... Hot air unit 15 ... Magnetron 16 ... Waveguide 17 ... Rotating antenna 18 ... Antenna motor 19 ... Duct 20 ... Blower means 21 ... Heating means 22 ... Fan motor 23 ... Suction hole 24 ... Blow-out hole 25 ... Steam generating means 26 ... Container 27 ... Heater 28 ... Water pump 90 ... Water tank 100 ... Housing 101 ... Main body housing 102 ... Base 214 ... Chalk Cover 219 ... Claw 220 ... Fitting part 260 ... Selection key group 270 ... Display part 290 ... Menu selection dial 300 ... Opening and closing mechanism part 400 ... Range 410 ... Handle

Claims (3)

A cooking apparatus characterized in that a door that can be opened and closed is provided in a main body housing, the door is provided on the door frame, and the door is formed so as to maintain and extend the height of the upper surface of the door frame. .. A cooking cooker characterized in that the main body housing is provided with a door that can be opened and closed, and the door and the housing are configured to have the same height. The main body housing is provided with a door that can be opened and closed, the door has a door frame, and the door frame has a projecting portion integrally formed so as to project forward with the same upper height. A cooking device characterized in that the handle body is fixed to the underside of the protrusion.

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