CN115111610A

CN115111610A - Heating cooker

Info

Publication number: CN115111610A
Application number: CN202210793684.XA
Authority: CN
Inventors: 川添弘一朗
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2018-02-28
Filing date: 2019-02-07
Publication date: 2022-09-27
Also published as: WO2019167583A1; EP3760932A1; EP3760932A4; CN111771086B; JP2019148398A; JP7029706B2; CN111771086A

Abstract

A heating cooker is provided with: a heating chamber (5); a side wall (5c) defining the inner surface of the heating chamber (5); a first hole (5ca) formed in the side wall (5 c); and a cover part (27) which is provided with second holes (27e, 27f) opposite to the first hole (5ca) at the outer side of the first hole (5ca), and a flat part formed at the periphery of the second holes (27e, 27 f). The disclosed device is provided with: a light-transmitting member (25) which is disposed on the cover (27) so as to face the first hole (5ca) and the second holes (27e, 27f) and so as to contact the flat portion; and an optical device (21) disposed outside the cover section (27). The side wall (5c) has a bent portion (5cb) that is cut outward and then folded up around the first hole (5 ca). Thus, a heating cooker capable of preventing steam from leaking from the hole is provided.

Description

Heating cooker

The application is a divisional application based on an invention patent application with the name of 'heating cooker', the application date of which is 2019, 02, 07 and the application number of which is 201980015027.9 (international application number is PCT/JP 2019/004326).

Technical Field

The present invention relates to a heating cooker for heating food in a heating chamber.

Background

Conventionally, the following heating cookers have been proposed: in order to brighten the inside of the heating chamber, an illuminator is disposed beside the heating chamber, and the heating cooker is provided with a steam generator for supplying steam into the heating chamber to perform heating cooking (see, for example, patent document 1).

The heating cooker described in patent document 1 includes two in-box lamps as an irradiation unit for irradiating light into a heating chamber. The in-box lamp has a light source, and the hole formed in the side wall is covered with a light-transmitting member, and the light source is disposed further outside the light-transmitting member. Further, the light emitted from the light source is irradiated into the heating chamber through the light-transmitting member and the hole.

However, in the structure of the conventional heating cooker, there is a possibility that steam leaks from a gap between the edge of the light transmitting hole formed in the side wall of the heating chamber and the light transmitting member.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2017-211120

Disclosure of Invention

The invention provides a heating cooker capable of preventing steam from leaking into a heating chamber from a hole for light transmission.

One embodiment of the present invention is a heating cooker including a heating chamber. A heating cooker is provided with: a side wall defining one face of an inner surface of the heating chamber; a first hole formed on the sidewall; and a cover portion having a second hole disposed outside the first hole and formed at a position facing the first hole, and a flat portion formed along a periphery of the second hole. Further, the heating cooker includes: a light-transmitting member disposed on the cover portion so as to face the first hole and the second hole and to abut against the flat portion; and an optical device disposed outside the cover portion, and configured to emit light into the heating chamber and receive light from the heating chamber through the first hole, the second hole, and the light-transmitting member. The side wall has a bent portion cut out to the outside around the first hole.

Thus, a heating cooker capable of preventing steam from leaking into a heating chamber through a light-transmitting hole (a first hole and a second hole) is provided.

Drawings

Fig. 1 is a front view of a heating cooker according to an embodiment.

Fig. 2 is a front perspective view of the heating cooker with the door open.

Fig. 3 is a front perspective view of a heating chamber of the heating cooker.

Fig. 4 is a partially enlarged front upper periphery of the other side wall in the longitudinal direction of the heating chamber.

Fig. 5 is an exploded perspective view of the periphery of the other side wall in the longitudinal direction of the heating chamber.

Fig. 6 is an outside view of the other side in the longitudinal direction of the heating chamber.

Fig. 7 is a front perspective view of a cover portion to which a transparent member is attached to the heating chamber.

Fig. 8 is a front perspective view of the cover portion with the light-transmitting member removed.

Fig. 9 is a sectional view of the periphery of the illuminator of the heating cooker.

Description of the symbols

1: a heating cooker; 3: a housing; 3 a: a front frame; 3 b: an opening; 5: a heating chamber; 5 a: an upper wall; 5b, 5 c: a side wall; 5 ca: a hole (first hole); 5 cb: a bending section; 5cc, 12 cc: a flange; 5 e: a bottom wall; 7: a door; 7 a: a handle; 9: a display unit; 11: an operation section; 12: a heat insulating metal plate; 12 c: a side metal plate (first metal plate); 12ca, 23a, 23 b: an aperture; 12 cb: hooking; 13: a first tray; 15: a second tray; 16: a steam generator; 21: illuminators (optical devices); 21 a: a first illuminator; 21aa, 21 ba: an LED element; 21 b: a second illuminator; 23: a heat insulating metal plate (second metal plate); 23 c: a first flange; 23 d: a second flange; 23e, 23 f: a metal plate; 25: a light-transmitting member; 27: a cover portion; 27 a: a first recess; 27 b: a second recess; 27 c: a first flat portion; 27 d: a second flat portion; 27e, 27 f: a hole (second hole); 27 g: a first stopper portion (front-rear direction restricting portion); 27ga, 27 ma: a protrusion; 27 h: a protrusion (front-rear direction restricting portion); 27k is as follows: a second stopper portion (height direction regulating portion); 27 m: a third stopper portion (height direction regulating portion); 27 n: a fourth stopper portion (height direction regulating portion); 27 p: a recess; 49: and (5) lower frame.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiment.

(embodiment mode)

Next, a heating cooker according to an embodiment of the present invention will be described with reference to fig. 1 and 2.

Fig. 1 is a front view of a heating cooker 1 according to the embodiment. Fig. 2 is a front perspective view of the heating cooker 1 in a state where the door 7 is opened.

Hereinafter, the X direction is a longitudinal direction (width direction or left-right direction) of the heating cooker 1, the Y direction is a front-back direction, and the Z direction is a height direction. The height in the following description means a distance from a mounting surface of the heating cooker 1.

As shown in fig. 1 and 2, a heating cooker 1 according to the embodiment includes: a housing 3; a heating chamber 5 disposed in the casing 3; a door 7 openably and closably covering an opening 3b opened in a front frame 3a which is a front surface of the housing 3.

The heating chamber 5 is constituted by a space surrounded by an upper wall 5a disposed at the upper portion,

side walls

5b and 5c disposed at both side portions, a rear wall (not shown) disposed at the rear portion, and a bottom wall 5e disposed at the lower portion. The heating chamber 5 is provided with a microwave radiation port (not shown) for radiating microwaves. The heating chamber 5 is configured to inductively heat an object to be heated (food) placed in the heating chamber 5 by microwaves emitted from the microwave radiation ports. The heating chamber 5 is provided with a steam outlet (not shown) at the top. Thereby, the steam generated by the steam generator 16 (see fig. 3) is supplied into the heating chamber 5.

The door 7 has a rotation center in the horizontal direction on the lower side of the opening 3 b. Thereby, the door 7 is attached to the housing 3 so as to be openable and closable with the rotation center as a rotation axis. The door 7 includes a handle 7a installed at an upper portion. The user pulls the handle 7a forward and downward to rotate the door 7 to be horizontal. Thereby, the heating chamber 5 is opened. The user turns the door 7 to be vertical, thereby closing the heating chamber 5.

The door 7 includes a display unit 9 and an operation unit 11 disposed near the other side (right side) in the longitudinal direction (X direction) when viewed from the front. The display unit 9 is configured by, for example, a liquid crystal screen, and displays a menu screen or the like. The operation unit 11 includes functions such as a button and a knob. The user can set various cooking instructions and the like for the heating cooker 1 using the operation unit 11.

The housing 3 is combined with a lower frame 49 at a lower end. In the lower frame 49, the first tray 13 and the second tray 15 are detachably disposed in the front-rear direction. The first tray 13 and the second tray 15 are arranged side by side in the longitudinal direction (X direction). For example, the first tray 13 is disposed on one side (left side) in the longitudinal direction, and the second tray 15 is disposed on the other side (right side) in the longitudinal direction. The first tray 13 is, for example, a tray for accumulating water droplets condensed in the heating cooker 1. The second tray 15 houses a water supply tank (not shown) for supplying water to a steam generator 16 (see fig. 3) disposed outside the side wall 5b of the heating chamber 5. In the following description, one side in the length direction of the heating cooker 1 is the left side and the other side is the right side when viewed from the front.

Next, the structure around the heating chamber 5 will be described with reference to fig. 3. Fig. 3 is a front perspective view of the heating chamber 5.

As shown in fig. 3, a heat insulating metal plate 12 is disposed on the outer surfaces of the upper wall 5a, the side wall 5b, and the side wall 5c of the heating chamber 5. In fig. 3, a side metal plate 12c attached to the outer surface of the side wall 5c is shown as the heat insulating metal plate 12. The side metal plate 12c covers the outer side surface of the side wall 5 c.

The side metal plate 12c includes an illuminator 21 attached near the upper front portion. The illuminator 21 includes, for example, a first illuminator 21a and a second illuminator 21b, etc. constituting the optical apparatus of the present application. The first illuminator 21a and the second illuminator 21b are arranged in parallel with a predetermined interval (for example, about 68 mm) in the vertical direction. The first illuminator 21a and the second illuminator 21b are formed of, for example, LED (light emitting diode) illumination devices. The first illuminator 21a and the second illuminator 21b each have an LED element 21aa and an LED element 21ba as light emitting elements (see fig. 9).

Next, the configuration of the periphery of the other side in the longitudinal direction of the heating chamber 5 will be described with reference to fig. 4. Fig. 4 is a partially enlarged front upper periphery of the side wall 5c on the other side (right side) in the longitudinal direction (X direction) of the heating chamber.

As shown in fig. 4, the illuminator 21 is attached to the side metal plate 12c with the side metal plate 12c interposed by the heat-insulating metal plate 23. Specifically, the first illuminator 21a and the second illuminator 21b are attached to the side surface metal plate 12c of the heat-insulating metal plate 12 via the heat-insulating metal plate 23, respectively. The heat insulating metal plate 23 has a size (area) slightly protruding from the outer peripheries of the first illuminator 21a and the second illuminator 21 b. The heat insulating metal plate 23 includes a first flange 23c, a second flange 23d, and the like. The first flange 23c is formed by being bent outward (in the X direction) from an upper edge portion of the heat-insulating metal plate 23. The second flange 23d is formed by being bent outward (in the X direction) from the front edge portion of the heat-insulating metal plate 23.

Next, referring to fig. 5, the configuration of the periphery of the other side in the longitudinal direction of the heating chamber 5 will be described in further detail. Fig. 5 is an exploded perspective view of the periphery of the side wall 5c on the other side (right side) in the longitudinal direction (X direction) of the heating chamber 5.

As shown in fig. 5, on the side wall 5c of the heating chamber 5, a cover portion 27, a transparent member 25, a side surface metal plate 12c of the heat-insulating metal plate 12, the heat-insulating metal plate 23, the illuminator 21, and the like are arranged in this order from the side wall 5c side. The heat insulating metal plate 23 constitutes a second metal plate, and includes a metal plate 23e and a metal plate 23 f.

The side metal plate 12c has a pair of holes 12ca disposed at vertically spaced positions, a pair of hooks 12cb provided in the respective holes 12ca, and the like. Each hole 12ca passes light irradiated from the illuminator 21. The pair of hooks 12cb are formed by being bent outward (X direction) from each side of the front end portion and the rear end portion of each hole 12 ca. The side metal plate 12c has a flange 12cc formed by bending inward (in the direction of X) from the upper edge and the lower edge.

The heating chamber 5 has a flange 5cc formed by bending outward (X direction) from the upper edge and the lower edge of the side wall 5 c. Further, the flange 12cc of the corresponding side metal plate 12c and the flange 5cc of the side wall 5c are joined. Thereby, the side metal plate 12c is connected to the side wall 5c of the heating chamber 5. At this time, a space is formed between the flange 5cc of the side wall 5c of the heating chamber 5 and the flange 12cc of the side metal plate 12 c. The cover 27 and the transparent member 25, which will be described later, are disposed in the formed space.

The metal plate 23e and the metal plate 23f as the heat insulating metal plate 23 are disposed at predetermined positions (for example, a gap of about 38 mm) separated in the vertical direction. The

metal plates

23e and 23f have a hole 23a and a pair of holes 23b formed near the center, respectively. The hole 23a passes light irradiated from the illuminator 21. A pair of holes 23b are formed in the front-rear direction (Y direction) of the hole 23 a. A pair of hooks 12cb of the side metal plate 12c disposed to face each other are inserted into the pair of holes 23 b. Thereby, the metal plate 23e and the metal plate 23f as the heat insulating metal plate 23 are engaged with the side surface metal plate 12 c.

The light-transmitting member 25 is formed of a plate-like member that can transmit light irradiated from the illuminator 21. The light transmitting member 25 is formed of, for example, a glass plate. The light-transmitting member 25 may be formed of a thermosetting resin plate such as silicone or a resin film such as polyimide, in addition to the glass plate. The light-transmitting member 25 is disposed at a position facing the pair of holes 12ca formed in the side metal plate 12c of the heat insulating metal plate 12.

Next, the structure of the other longitudinal outer surface side of the heating chamber 5 will be described with reference to fig. 6. Fig. 6 is an outside view of the other side (right side) in the longitudinal direction of the heating chamber 5. Specifically, fig. 6 is an outside view of the side wall 5c of the heating chamber 5 with the side metal plate 12c shown in fig. 3 removed.

As shown in fig. 6, the cover 27 is attached to the vicinity of the upper portion of the front side of the other side wall 5c of the heating chamber 5 by press-fitting, for example. Here, the transparent member 25 is formed in a rectangular shape, for example, which is longer in the vertical direction (Z direction) than in the front-rear direction (Y direction) in side view.

Next, the structure around cover 27 will be described with reference to fig. 7 and 8. Fig. 7 is a front perspective view of the cover portion 27 in a state where the translucent member 25 is attached. Fig. 8 is a front perspective view of the cover portion 27 with the translucent member 25 removed.

As shown in fig. 7 and 8, the cover portion 27 has a first stopper portion 27g cut out outward from a center portion in the height direction of the outer side surface of the cover portion 27 on the rear side of the center in the front-rear direction. The first stopper portion 27g has, for example, an L-shaped cross section in the X direction, extends in the vertical direction, and has two protrusions 27ga protruding inward (in the (-X direction) near the end side in the vertical direction. The cover portion 27 has a recess 27p protruding outward (in the X direction) at a position forward of the center in the front-rear direction and facing the first stopper portion 27 g. The cover portion 27 has, for example, a semicircular projection 27h projecting outward (in the X direction) in side view. The projection 27h is formed to project outward (X direction) from the recess 27p of the cover portion 27.

When the translucent member 25 is inserted into the cover portion 27 having the above-described configuration, a part of the rear side surface of the translucent member 25 abuts against the first stopper portion 27g, and a part of the front side surface of the translucent member 25 abuts against the projection 27 h. Thereby, the translucent member 25 is fitted to the first stopper 27g and the projection 27h of the cover 27. As a result, the fitting restricts the movement of the translucent member 25 in the front-rear direction. That is, the projection 27h and the first stopper portion 27g constitute a lateral restriction portion for the translucent member 25.

As shown in fig. 8, the cover portion 27 has two second stopper portions 27k bent outward (X direction) in a claw shape from the upper end. The cover portion 27 has a 3 rd stopper portion 27m cut out to the outer side (X direction) in the vicinity of the lower portion of the front of the outer side surface. The 3 rd stopper 27m has an L-shaped cross section in the Z direction, extends in the front-rear direction (Y direction), and has a projection 27ma projecting inward (-X direction). The cover portion 27 further includes a fourth stopper portion 27n bent outward (in the X direction) in a claw shape at a central portion near the lower end.

When the translucent member 25 is inserted into the cover portion 27 having the above-described configuration, the upper side surface of the translucent member 25 abuts against the two second stopper portions 27k, and the lower side surface of the translucent member 25 abuts against the third stopper portion 27m and the fourth stopper portion 27 n. This restricts the vertical movement of the light-transmitting member 25. That is, the second stopper portion 27k, the third stopper portion 27m, and the fourth stopper portion 27n constitute a height direction regulating portion for the light transmissive member 25.

Further, by pulling the translucent member 25 attached to the cover portion 27 outward (in the X direction), the fitting between the translucent member 25 and the projection 27h can be released. This allows the translucent member 25 to slide forward. Therefore, the translucent member 25 can be easily detached from the cover portion 27.

On the other hand, when the translucent member 25 is fitted to the cover portion 27, the rear end of the translucent member 25 is pressed against the first stopper portion 27 g. Then, the distal end of the translucent member 25 is pushed inward. Thereby, the protrusion 27h of the cover 27 is fitted to the transparent member 25. At this time, the transparent member 25 is pressed against the first flat portion 27c and the second flat portion 27d of the cover portion 27 by the 2 protrusions 27ga of the first stopper portion 27g and the protrusion 27ma of the 3 rd stopper portion 27m formed to protrude inward (-X direction). Thereby, the translucent member 25 is fixed to the cover 27. That is, as described above, the cover portion 27 functions as a metal plate for mounting the translucent member 25. The first flat portion 27c and the second flat portion 27d are examples or a generic name of flat portions.

The cover portion 27 has a first recess 27a and a second recess 27b projecting outward (in the X direction). The first recess 27a and the second recess 27b are disposed at a predetermined interval (for example, about 68 mm) in the vertical direction (Z direction). The first recess 27a has the first flat portion 27c at the bottom (outer side). The first flat portion 27c is formed with a hole 27e constituting a second hole of the present application. That is, around the hole 27e, a flat region is formed by the first flat portion 27 c. The hole 27e passes the light radiated from the first illuminator 21 a.

The second recess 27b has the second flat portion 27d at the bottom (outer side). The second flat portion 27d is formed with a hole 27f constituting a second hole of the present application. That is, around the hole 27f, a flat region is formed by the second flat portion 27 d. The hole 27f passes the light emitted from the second illuminator 21 b.

Next, the structure around the illuminator 21 will be described with reference to fig. 9. Specifically, fig. 9 is a cross-sectional view of the periphery of the first illuminator 21a and the second illuminator 21b constituting the illuminator 21.

As shown in fig. 9, the heating chamber 5 has a pair of holes 5ca constituting the first hole of the present invention in the side wall 5c, and the pair of holes 5ca are used for irradiating the heating chamber 5 with each light emitted from the first illuminator 21a and the second illuminator 21b constituting the illuminator 21. The side wall 5c has a bent portion 5cb formed by cutting the side wall 5c outward (in the X direction) of the hole 5ca around each hole 5 ca. The bent portion 5cb reduces the electric wave leaking from the inside of the heating chamber 5 to the outside through each of the holes 5ca by an effect generally called choke effect. At this time, the bending height of the bent portion 5cb in the X direction is formed to be smaller than the depth of the first concave portion 27a and the second concave portion 27b of the cover portion 27 in the X direction.

Therefore, the first flat portion 27c and the second flat portion 27d of the cover portion 27 are in close contact with the transparent member 25 at the outer side (X direction) than the end of the curved portion 5cb of the side wall 5 c. That is, the curved portion 5cb of the side wall 5c and the transparent member 25 are not arranged to directly contact each other. The first flat portion 27c and the second flat portion 27d of the cover portion 27 and the transparent member 25 are in surface-to-surface contact with each other. Therefore, for example, even if the light transmitting member 25 vibrates, it is possible to reliably prevent the occurrence of damage, breakage, or the like due to contact with the bent portion 5 cb. Further, since the surface-to-surface contact is made, the leakage of the steam from between the first and second

flat portions

27c and 27d and the transparent member 25 can be reduced remarkably. Further, with the above configuration, since the transparent member 25 is not damaged, the steam in the heating chamber 5 does not leak through the damaged gap passage hole 5 ca.

The heating chamber 5 has a machine chamber, not shown, below. A cooling fan (not shown) is disposed in the machine room. Thus, the cooling air generated by the cooling fan (not shown) flows upward from below on the side metal plate 12 c. At this time, the cooling air flows on the back sides of the substrates of the first illuminator 21a and the second illuminator 21 b. Therefore, the LED elements 21aa and 21ba are cooled from the back side of the substrate. This can reduce the influence of heat generated by heating the object to be heated on the first illuminator 21a and the second illuminator 21b in the heating chamber 5.

As shown in fig. 9, the transparent member 25 and the cover 27 are disposed so as not to contact the side metal plate 12 c. That is, a gap is provided between the transparent member 25 and the cover 27 and the side metal plate 12 c. Therefore, the heat conducted from the side wall 5c of the heating chamber 5 to the transparent member 25 and the cover 27 can be reduced from being conducted to the side surface metal plate 12c through the gap. This can reduce the influence of heat on the LED elements 21aa and 21 ba.

As described above, the heating cooker 1 of the above embodiment includes: a heating chamber 5; a side wall 5c defining one surface of the inner surface on the right side of the heating chamber 5; and a pair of holes 5ca formed in the side wall 5c and constituting first holes. The heating cooker 1 further includes a cover portion 27, and the cover portion 27 includes:

holes

27e and 27f constituting second holes, which are arranged outside the pair of holes 5ca and overlap the holes 5 ca; a first flat portion 27c and a second flat portion 27d which constitute flat portions formed along the peripheries of the

holes

27e and 27 f. Further, the heating cooker 1 includes: a translucent member 25 disposed on the cover portion 27 so as to face the pair of holes 5ca, 27e, and 27f and to abut against the first flat portion 27c and the second flat portion 27 d; and an illuminator 21 that emits light to the heating chamber 5 or receives light from the heating chamber 5 through the holes 5ca, 27e, 27f and the transparent member 25, is disposed outside the cover 27, and is configured by a first illuminator 21a and a second illuminator 21b that constitute an optical device. The side walls 5c have bent portions 5cb cut outward around the pair of holes 5ca, respectively.

According to the structure of the heating cooker 1 described above, the following effects can be obtained.

First, a bent portion 5cb is formed around a pair of holes 5ca formed in the side wall 5c of the heating chamber 5, and is cut out outward from the side wall 5 c. This prevents radio waves such as microwaves radiated into heating chamber 5 from leaking out of heating chamber 5 through hole 5 ca.

The transparent member 25 is not directly in contact with a pair of holes 5ca formed in the side wall 5c of the heating chamber 5, but is disposed with the cover 27 interposed therebetween. Thus, even if the bent portion 5cb of the side wall 5c vibrates due to the vibration in the heating chamber 5, the bent portion 5cb does not damage the light transmitting member 25.

The first flat portion 27c and the second flat portion 27d constituting the flat portions of the cover portion 27 are in surface-to-surface contact with the transparent member 25. Therefore, even if the flat portion and the transparent member 25 move relative to each other due to vibration or the like, the surface of the transparent member 25 is not easily damaged. Further, since the translucent member 25 is disposed in contact with the cover portion 27, the generated steam passage holes 5ca can be more reliably prevented from leaking from the heating chamber 5 to the outside.

The heating cooker 1 of the above embodiment includes the side surface metal plate 12c of the heat insulating metal plate 12 constituting the first metal plate disposed outside the transparent member 25, and the illuminator 21 constituting the optical device is attached to the side surface metal plate 12 c. The side metal plates 12c provide a heat insulating effect of suppressing heat generated in the heating chamber 5 from being dissipated to the outside. This makes it possible to lower the ambient temperature of the illuminator 21 than the temperature in the heating chamber 5. As a result, the influence of heat from inside heating chamber 5 on illuminator 21 can be reduced.

The heating cooker 1 of the above embodiment includes the heat insulating metal plate 23 constituting the second metal plate disposed between the illuminator 21 and the side metal plate 12c, and the illuminator 21 is attached to the side metal plate 12c via the heat insulating metal plate 23. That is, a heat-insulating metal plate 23 different from the side metal plate 12c is further provided. This can provide a high heat insulating effect for the illuminator 21. As a result, the influence of heat on the illuminator 21 can be further reduced.

The heating cooker 1 of the above embodiment has a pair of holes 5ca in the side wall 5c, and the cover 27 has a hole 27e and a hole 27f, which correspond to the pair of holes 5ca and form a second hole, and a first flat portion 27c and a second flat portion 27 d. The light-transmitting member 25 is disposed so as to face the pair of holes 5ca constituting the first hole and the pair of

holes

27e and 27f constituting the second hole, and so as to abut the pair of first flat portions 27c and second flat portions 27d constituting the flat portions. Thus, one translucent member 25 is disposed in the pair of

holes

27e and 27f of the cover 27. Therefore, the size of the light-transmitting member 25 can be set larger than the pair of

holes

27e and 27f and can be easily attached to the cover 27.

In addition, in the heating cooker 1 of the above embodiment, the cover portion 27 has: a first stopper portion 27g and a protrusion 27h constituting a front-rear direction regulating portion that regulate the movement of the light transmitting member 25 in the front-rear direction (Y direction); and a second stopper portion 27k and a 3 rd stopper portion 27m constituting a height direction regulating portion that regulate the movement of the light transmitting member 25 in the height direction (Z direction). With these configurations, the light-transmitting member 25 can be stably attached to an appropriate position of the cover portion 27. Further, the positional displacement of the light transmitting member 25 due to vibration or the like can be more reliably suppressed.

The present invention is not limited to the heating cooker of the above embodiment, and may be a structure of the heating cooker of the embodiment shown in the following modified example.

In other words, in the above-described embodiment, the optical device including the illuminator 21 having the LED element is described as an example of the light emitting element, but the invention is not limited thereto. For example, an imaging element or a light receiving element may be disposed as the optical device. In addition, they may be combined to configure an optical device. Specifically, the image pickup device includes, for example, a CMOS image sensor, a CCD image sensor, and the like. Examples of the light receiving element include an infrared temperature sensor.

In addition, by appropriately combining any of the various embodiments and modifications described above, the effects each has can be obtained.

While the present invention has been fully described in connection with the preferred embodiments thereof with reference to the accompanying drawings, various changes and modifications will be apparent to those skilled in the art. Such variations and modifications are to be understood as being included within the scope of the present invention as defined by the appended claims. Further, changes in the combination and order of elements in the embodiments may be implemented without departing from the scope and spirit of the invention.

As described above, one embodiment of the present invention is a heating cooker including a heating chamber. A heating cooker is provided with: a side wall defining one surface of an inner surface of the heating chamber; a first hole formed in the sidewall; and a cover portion having a second hole disposed outside the first hole and facing the first hole, and a flat portion formed along a periphery of the second hole. Further, the heating cooker includes: a light-transmitting member disposed on the cover portion so as to face the first hole and the second hole and to abut against the flat portion; and an optical device disposed outside the cover section, and configured to emit light into the heating chamber and receive light from the heating chamber through the first hole, the second hole, and the light-transmitting member. The side wall has a bent portion cut out to the outside around the first hole.

The optical device may further include a first metal plate disposed outside the light transmitting member, and the optical device may be attached to the first metal plate.

The optical device may further include a second metal plate disposed between the optical device and the first metal plate, and the optical device may be attached to the first metal plate with the second metal plate interposed therebetween.

The side wall has a pair of first holes, and the cover has a pair of second holes and a pair of flat portions corresponding to the pair of first holes, respectively. The transparent member may be disposed so as to face the pair of first holes and the pair of second holes and so as to abut the pair of flat portions.

The cover portion may include a front-rear direction regulating portion that regulates movement of the light-transmitting member in the front-rear direction (Y direction), and a height direction regulating portion that regulates movement of the light-transmitting member in the height direction (Z direction).

In addition, the optical device may also be an illuminator.

In addition, the illuminator may be an LED illumination device.

Industrial applicability

The present invention is useful in a heating cooker such as a high-frequency heating cooker, a high-frequency heating cooker having a steam generator, and a high-frequency heating cooker having a heater.

Claims

1. A heating cooker having a heating chamber, wherein,

the heating cooker comprises:

a side wall defining one face of an inner surface of the heating chamber;

a first hole is formed in the side wall;

a cover portion having a second hole disposed outside the first hole and facing the first hole, and a flat portion formed along a periphery of the second hole;

a light-transmitting member disposed on the cover so as to be opposed to the first hole and the second hole and to be in contact with the flat portion; and

an optical device disposed outside the cover portion,

the side wall has a bent portion cut to an outside around the first hole,

the flat portion of the cover portion abuts against the light-transmitting member in a close contact state at a position outside the end of the curved portion of the side wall.

2. The heating cooker according to claim 1,

the cooking device comprises a first metal plate disposed outside the light-transmitting member,

the optical device is mounted to the first metal plate.

3. The heating cooker according to claim 2,

the heating cooker comprises a second metal plate arranged between the optical device and the first metal plate,

the optical device is attached to the first metal plate with the second metal plate interposed therebetween.

4. The heating cooker according to claim 1,

the side wall has a pair of the first holes,

the cover portion has a pair of the second holes and a pair of the flat portions corresponding to the pair of the first holes,

the light-transmitting member is disposed so as to face the pair of first holes and the pair of second holes and so as to abut the pair of flat portions.

5. The heating cooker according to claim 1,

the cover portion has:

a front-rear direction regulating unit for regulating the movement of the light-transmitting member in the front-rear direction, i.e., in the Y direction; and

and a height direction regulating unit for regulating the movement of the light-transmitting member in the height direction, i.e., in the Z direction.

6. The heating cooker according to claim 2,

the optical device is an illuminator.

7. The heating cooker according to claim 6,

the illuminator is an LED illumination device.