CN112005055B - Heating cooker - Google Patents
Heating cooker Download PDFInfo
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- CN112005055B CN112005055B CN201980027452.XA CN201980027452A CN112005055B CN 112005055 B CN112005055 B CN 112005055B CN 201980027452 A CN201980027452 A CN 201980027452A CN 112005055 B CN112005055 B CN 112005055B
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- heating
- heating box
- opening
- top plate
- camera
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/02—Stoves or ranges heated by electric energy using microwaves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Ovens (AREA)
Abstract
A heating cooker includes: a heating box (110) having a front opening (102); a heating unit that heats an object to be heated stored in the heating box (110); and a camera (154) having an optical axis (157) inclined with respect to the vertical direction and disposed on the upper wall (111 a) of the heating box (110) so as to face the inside of the heating box (110). The heating cooker is also provided with a top plate (140), wherein the top plate (140) is arranged along the upper wall (111 a) below the upper wall (111 a) of the heating box (110), and the top plate is provided with a top plate opening (141) which is an opening for the camera (154) to shoot the inside of the heating box (110). The heating cooker is further provided with an antenna cover (145), wherein the antenna cover (145) is arranged between the upper wall (111 a) and the top plate (140) of the heating box (110), and is provided so as to cover the antenna (109 a) of the heating part mounted on the upper part of the heating box (110) from below.
Description
Technical Field
The present invention relates to a heating cooker for heating food.
Background
Conventionally, there is a heating cooker including an imaging unit for imaging the inside of a cabinet (see, for example, patent document 1). In this heating cooker, an imaging unit is provided on the ceiling of the heating box, and a heating unit is provided for heating an object to be heated.
Documents of the prior art
Patent literature
Patent document 1: japanese patent laid-open publication No. 59-044793
Disclosure of Invention
However, many of the heating devices having such a configuration include a plurality of components such as a heating unit disposed above the heating box. In such a configuration, when the imaging unit is provided on the ceiling portion of the heating box, it is difficult for the imaging unit to secure a sufficient field of view.
The heating cooker of the present invention comprises: a heating box having a front opening; a heating unit that heats an object to be heated stored in the heating box; and a camera, the optical axis of which is inclined with respect to the vertical direction, and which is disposed on the upper wall of the heating box so as to face the inside of the heating box. The cooking device further includes a top plate portion disposed along the upper wall of the heating box below the upper wall of the heating box, and the top plate portion is provided with a top plate opening as an opening through which the camera photographs the inside of the heating box. The heating cooker includes a radome provided between an upper wall and a ceiling portion of the heating box and covering an antenna of a heating unit attached to an upper portion of the heating box from below.
In the present invention, the imaging unit is provided obliquely to the upper wall of the heating box, the top plate portion provided with the opening for imaging is disposed below the upper wall of the heating box, and the antenna cover for protecting the heating unit is disposed.
Drawings
Fig. 1 is a perspective view of a heating cooker according to an embodiment of the present invention.
Fig. 2 is a perspective view showing a state where a door of a heating cooker according to an embodiment of the present invention is opened.
Fig. 3 is a front view showing a state in which a door is removed from a heating cooker according to an embodiment of the present invention.
Fig. 4 is a perspective view of a heating cooker according to an embodiment of the present invention, as viewed from below, with a door removed.
Fig. 5 is a perspective view showing a state in which a part of a housing is removed in a heating cooker according to an embodiment of the present invention.
Fig. 6 is a plan view showing a state where a part of the housing is removed in the heating cooker according to the embodiment of the present invention.
Fig. 7 is a cross-sectional view taken along line 7-7 of fig. 6.
Fig. 8 is a cross-sectional view taken along line 8-8 of fig. 6.
Fig. 9 is a cross-sectional view taken along line 9-9 of fig. 6.
Fig. 10 is a cross-sectional view taken along line 10-10 of fig. 7.
Fig. 11 is an exploded perspective view of main components of a heating cooker according to an embodiment of the present invention.
Fig. 12 is an exploded perspective view of main components of a heating cooker according to an embodiment of the present invention, as viewed from below.
Fig. 13 is a top explanatory view for explaining a structure of a heating cooker according to an embodiment of the present invention.
Fig. 14 is a front explanatory view for explaining a structure of a heating cooker according to an embodiment of the present invention.
Fig. 15 is a side view illustrating a structure of a heating cooker according to an embodiment of the present invention.
Fig. 16 is a side view illustrating a structure of a heating cooker according to an embodiment of the present invention.
Fig. 17 is a side view illustrating a structure of a heating cooker according to an embodiment of the present invention.
Detailed Description
(first embodiment)
[ integral Structure ]
Fig. 1 to 17 show a heating cooker according to an embodiment of the present invention.
As shown in fig. 1 to 3, a heating cooker 1 according to one embodiment of the present invention includes: a housing 100; a heating box 110 disposed in the casing 100; and a door 120 that openably and closably covers the front opening 102, the front opening 102 being positioned in the front frame 101 that serves as the front surface of the casing 100.
In the description of the present invention, the front opening 102 side of the heating cooker 1 is referred to as the front side, and the rear side opposite to the front side is referred to as the rear side. When viewed from the front, that is, from the front, the top surface of the heating cooker 1 is defined as the upper side, and the bottom surface is defined as the lower side. Further, the right direction of the heating cooker 1 is defined as the right side and the left direction is defined as the left side when viewed from the front.
When the heating cooker 1 is viewed from the front, the right direction is defined as the X direction, and the left direction is defined as the-X direction. The rear direction of the heating cooker 1 is set to the Y direction, and the front direction is set to the-Y direction. The upper direction of the heating cooker 1 is defined as the Z direction, and the lower direction is defined as the-Z direction.
The heating box 110 has: an upper wall 111a disposed at an upper portion; a left side wall 111b and a right side wall 111c disposed on both left and right sides; a rear wall 111d disposed at the rear; and a bottom wall 111e disposed at the lower portion, and a space is formed inside the heating box 110.
The door 120 is attached to the housing 100 so as to be openable and closable around a rotation center in the vertical direction on the left side of the front opening 102. The door 120 has a handle 121 at a right end portion of the front surface. By the user pulling the handle 121, the door 120 is rotated to open the front opening 102. In addition, by the user pushing the handle 121, the front opening 102 is closed. A glass window 122 is provided at the door 120 so that a user can confirm the condition inside the heating compartment 110.
An operation portion 130 having a horizontally long shape in front view is provided above the door 120 at the upper front portion of the housing 100. The operation unit 130 includes: a plurality of operation switches 131 for a user to set cooking contents; and a plurality of display portions 132 for displaying the operation status to the user. The operation switch 131 is a button for selecting various information, a start button for starting heating cooking, or the like. The display unit 132 displays the operation state of the cooking device 1, the operation state of the operation switch 131, and the like. The operation switch 131 and the display unit 132 are controlled by the control unit 105 (see fig. 5 and 6). The control Unit 105 may be constituted by, for example, a CPU (Central Processing Unit), a microcomputer, or hardware logic.
As shown in fig. 4, a wall opening 112 as an opening is provided in an upper wall 111a of a heating box 110 of a heating cooker 1 according to an embodiment of the present invention. A wall surface recess 113 formed in a concave shape is provided upward from the peripheral edge of the wall surface opening 112. Wall surface recess 113 is formed in a concave shape obliquely upward from the peripheral edge of wall surface opening 112 provided in upper wall 111a of heating box 110.
A recessed bottom opening 114, which is an opening for imaging, is formed in the recessed bottom, i.e., the upper side, of the wall surface recessed portion 113. The side wall of the wall surface recess 113 is tapered so as to narrow from the heating box 110 side toward the wall surface opening 112 side.
A flat plate-shaped top plate 140 is provided below the upper wall 111a so as to be parallel to the upper wall 111a with a gap provided between the top wall 111a and the top wall. A top plate opening 141 is provided as an opening on the front side of the top plate 140.
The side wall of the wall surface recess 113 is tapered so as to narrow from the heating box 110 side toward the wall surface opening 112 side. The concave bottom opening 114 is disposed so as to face the vicinity of the camera 154 (see fig. 7 and 15). The cross-sectional area of the opening surface of the recessed bottom opening 114 is smaller than the cross-sectional area of the opening surface of the wall surface opening 112. By making the opening of the recess bottom opening 114 smaller in this manner, leakage of microwaves from the inside of the heating box 110 can be suppressed while securing a wide field range.
The following describes the arrangement of the imaging unit 150, the blowing unit 160, the illumination unit (the upper illumination 171 as the first illumination, the left illumination 172 as the second illumination, and the right illumination 173 as the third illumination), the top plate 140, and the like, with reference to fig. 5 to 10.
Fig. 5 is a perspective view of heating cooker 1 according to one embodiment of the present invention with the top and side surfaces of case 100 removed. Fig. 6 is a plan view showing a state in which the upper surface and side surfaces of the case 100 are removed, in the heating cooker 1 according to one embodiment of the present invention.
Fig. 7 is a cross-sectional view taken along line 7-7 of fig. 6. Fig. 8 is a cross-sectional view taken along line 8-8 of fig. 6. Fig. 9 is a cross-sectional view taken along line 9-9 of fig. 6. Fig. 10 is a cross-sectional view taken along line 10-10 of fig. 7.
As shown in fig. 7 and 8, two magnetrons 106a and 106b are provided at the upper and lower sides of the rear part of the heating cooker 1. The magnetrons 106a, 106b are connected to waveguides 107a, 107b for transmitting microwaves, respectively. The upper magnetron 106a is connected to a waveguide 107a provided above an upper wall 111a of the heating box 110. The lower magnetron 106b is connected to a waveguide 107b provided below the bottom wall 111e of the heating box 110. The waveguide 107a is connected to a radiation opening 108a, and the radiation opening 108a is formed substantially in the center of the heating box 110 in plan view. The waveguide 107b is connected to a radiation opening 108b, and the radiation opening 108b is located substantially at the center in the heating box 110 in plan view and is formed below the bottom wall 111e of the heating box 110.
Microwaves generated by the magnetrons 106a and 106b are radiated into the heating box 110 from the up-down direction via the waveguides 107a and 107b and the radiation openings 108a and 108b, respectively. By radiating microwaves in the vertical direction, the object to be heated can be uniformly heated.
Near the radiation openings 108a and 108b, stirrers 109a and 109b as antennas are provided, and the stirrers 109a and 109b rotate to stir the microwaves radiated from the radiation openings 108a and 108b, thereby heating the object more uniformly.
An antenna cover 145 is provided below the upper stirrer 109a so as to cover the rotation range of the stirrer 109a from below.
A top plate 140 is provided below the radome 145 so as to be parallel to the upper wall 111a of the heating box 110. The top plate 140 has a top plate opening 141 at a position below the imaging unit 150 on the front side. The radome 145 and the top plate portion 140 will be described in detail later.
An imaging unit 150 and an air blowing unit 160 are provided above the heating box 110 (see fig. 6 and 9). Illumination portions (upper illumination 171, left illumination 172, and right illumination 173) for illuminating the inside of the heating box 110 are provided above and on the sides of the box.
The imaging section 150 includes a support frame 151, a camera substrate (not shown), a camera 154, a shutter (not shown), and a drive motor (not shown).
The support frame 151 constituting the imaging unit 150 is provided so as to cover the wall surface recess 113 on the upper surface of the heating box 110. The imaging unit 150 is attached to face the inside of the heating box 110 from the front side of the upper wall 111a of the heating box 110, that is, from the side closer to the front opening 102 than the substantial center of the upper wall 111a.
The camera board constituting the camera 154 is a substantially rectangular flat plate shape, and the camera 154 is attached such that the camera board is disposed substantially in the center of the lower surface when the support frame 151 is provided on the upper wall 111a of the heating chamber 110.
The imaging surface of the camera 154 is formed in a substantially circular shape. As the image pickup device of the camera 154, for example, a CCD, a CMOS, or the like is used. The camera 154 images the inside of the heating box 110 in accordance with an instruction from the control unit 105.
The camera board is attached to the support frame 151 such that the imaging opening, the recessed bottom opening 114, and the wall surface opening 112 are aligned in the imaging direction of the camera 154, that is, in the optical axis 157 direction shown in fig. 15. Thereby, the camera 154 can face the inside of the heating box 110, and can capture an image of the inside of the heating box 110.
The imaging unit 150 includes a shutter (not shown) that is rotated by a drive motor so as to protect the camera 154 from steam and scattered objects from the heated object.
By providing the imaging unit 150 on the ceiling, which is the upper wall of the heating box 110, the imaging unit 150 can image an image at an angle and position where the heating box 110 is viewed downward. This makes it possible to photograph the upper side of the object with higher accuracy, i.e., with high resolution and less keystone distortion. Such a configuration of photographing from the upper wall of heating box 110 is particularly effective in applications such as recognition of characters, marks, and the like on the object to be heated with high accuracy, recognition of the type of material of the object to be heated, recognition of the shape or size of the object to be heated, and recognition of the heating state of the object to be heated.
According to the heating cooker 1 of the present invention, the convenience of the user can be improved in business use such as convenience stores and household use.
The imaging unit 150 is provided on the front side of the upper wall 111a of the heating box 110, that is, on the front opening 102 side of the center of the upper wall 111a. The imaging unit 150 is provided such that the imaging plane of the camera 154 is inclined with respect to the horizontal plane such that the imaging direction is directed toward the substantially center of the bottom wall 111e of the heating box 110. That is, the imaging unit 150 is provided such that the optical axis 157, which is the imaging direction of the camera 154, is inclined toward the rear side, i.e., the side away from the front opening 102, with respect to the vertical direction of the heating box 110. This makes it possible to dispose the imaging unit 150 in a narrow space, avoiding the vicinity of the center of the upper wall 111a in a plan view, such as the radiation opening 108a, in which microwaves, which are an example of a heating unit, are radiated. The imaging unit 150 can avoid being provided near the center of the upper wall 111a, and can accurately image a wide range in the heating box 110.
Further, by providing the imaging unit 150 such that the imaging direction is inclined toward the rear side with respect to the vertical direction, the influence of the outside light incident from the glass window 122 of the door 120 on the imaging by the imaging unit 150 can be suppressed. That is, it is possible to avoid a decrease in the imaging accuracy of the camera 154 due to the external light incident from the glass window 122 being directly or indirectly reflected at high luminance on the image captured by the camera 154.
The blowing part 160 has a fan case, a fan, and an exhaust port.
A fan is provided inside the fan housing. The fan housing has an exhaust port for blowing air. The fan is driven by a DC motor and generates an air flow toward the image pickup unit 150. The fan is driven based on an instruction from the control unit 105.
Illumination portions for illuminating the inside of the heating box 110 are provided above and on the sides of the box. The illumination unit includes an upper illumination 171, a left illumination 172, and a right illumination 173.
The upper illumination 171 includes an illumination substrate 171a, an LED (Light Emitting Diode) 171b, and an illumination support portion 171c.
A plurality of LEDs 171b are provided as light sources, i.e., light emitting elements, on the surface of the illumination substrate 171a on the side of the heating box 110. By using the LED as the light source, a larger amount of light can be irradiated into the heating box 110 with high reliability. The illumination substrate 171a is attached to the illumination support portion 171c. The illumination support portion 171c is attached to the upper wall 111a of the heating box 110.
The illumination unit controls light emission in accordance with an instruction from the control unit 105. The left illumination 172 and the right illumination 173 also include the same components as the illumination substrate 171a, the LED 171b, and the illumination support portion 171c of the upper illumination 171. The upper illumination 171, the left illumination 172, and the right illumination 173 will be described in detail later.
[ Structure of the main portion ]
The top plate 140 and the periphery thereof and the illumination unit having the upper illumination 171, the left illumination 172, and the right illumination 173 will be described in detail with reference to fig. 11 to 14.
Fig. 11 is an exploded perspective view of a heating cooker according to an embodiment of the present invention, including an illumination unit, heating box 110, and top plate 140. Fig. 12 is an exploded perspective view of a heating cooker according to an embodiment of the present invention, including a heating box 110, a radome 145, and a ceiling opening 141, viewed from below. Fig. 13 is a schematic diagram illustrating a configuration and an arrangement of an illumination unit and the like in a plan view of a heating cooker according to an embodiment of the present invention. Fig. 14 is a schematic diagram illustrating a configuration and an arrangement of an illumination unit and the like in a front view of a heating cooker according to an embodiment of the present invention.
An illumination opening 115a formed of a plurality of perforations is provided in the upper wall 111a of the heating box 110 at a position rearward of the center in plan view. The diffusion sheet 170 is provided in the illumination opening 115a so as to cover the illumination opening 115a from the outside. Further, upper illumination 171 is provided on upper wall 111a of heating box 110 so as to face the inside of heating box 110 via diffusion sheet 170 and illumination opening 115a.
The upper illumination 171 is disposed on the rear side of the center of the upper wall 111a of the heating box 110 in plan view. The upper illuminator 171 and the imaging unit 150 are arranged at positions across the waveguide 107a in a plan view, and the waveguide 107a is arranged on the upper wall 111a obliquely with respect to the front-rear direction. That is, the upper illumination 171 and the imaging unit 150 are disposed at positions separated from the radiation opening 108a (see fig. 8) in a plan view. This makes it possible to dispose the upper illumination 171 in a narrow space while avoiding the vicinity of the center of various components disposed in the plan view.
A lighting opening 115b formed of a plurality of perforations is provided on the front side and the upper side of the left side wall 111b of the heating box 110 in side view. A diffusion sheet 170 is provided so as to cover the illumination opening 115b from the outside. Further, a left illumination 172 is provided on the left side wall 111b of the heating box 110 so as to face the inside of the heating box 110 via the diffusion sheet 170 and the illumination opening 115b.
A lighting opening 115c formed by a plurality of perforations is provided on the right side wall 111c of the heating box 110 on the front side and the upper side in side view. A diffusion sheet 170 is provided so as to cover the illumination opening 115c from the outside. Further, a right illumination 173 is provided on the right side wall 111c of the heating box 110 so as to face the inside of the heating box 110 via the diffusion sheet 170 and the illumination opening 115c.
The diffusion sheet 170 is formed of a film having polyethylene terephthalate or polycarbonate as a main material. Light irradiated from each of the illuminations (the upper illumination 171, the left illumination 172, and the right illumination 173) is diffused in a direction orthogonal to the irradiation direction by the diffusion sheet 170.
As shown in fig. 12, a stirrer 109a as a rotary antenna for stirring microwaves is provided at the center of the upper wall 111a of the heating box 110 in a plan view. The stirrer 109a is provided below the upper wall 111a, i.e., inside the heating box 110, so as to stir the microwaves inside the heating box 110.
An antenna cover 145 is provided on the surface of the upper wall 111a on the side of the heating box 110 so as to cover the rotation range of the agitator 109a from below. As shown in fig. 16 and 17, the antenna cover 145 is provided below the imaging unit 150 and above the top plate 140. The radome 145 is formed of a polypropylene material. This allows the microwave oven to be disposed in contact with the wall surface of the heating box 110 having a high temperature, and allows the microwaves radiated into the heating box 110 to pass therethrough.
The antenna cover 145 is formed in a bottomed bowl shape tapered downward, and has an upper opening. The radome 145 is installed with the end of its upper opening in contact with the lower surface of the upper wall 111a. A slope 145a inclined with respect to the vertical direction of the heating box 110 is provided on the front side of the antenna cover 145. The lower side of the inclined surface 145a is inclined toward the rear side of the heating compartment 110.
As shown in fig. 11 to 14, a flat plate-shaped top plate 140 is provided below the upper wall 111a so as to be parallel to the upper wall 111a with a gap provided therebetween. Further, the top plate portion 140 is disposed below the radome 145.
The top plate 140 is formed of a flat plate 140a as a main surface and a peripheral edge 140b thereof. The flat plate 140a as the main surface of the top plate 140 is formed of a laminated plate made of glass cloth and silicone. This allows light to be diffused and transmitted softly, and allows microwaves to be transmitted. The peripheral edge 140b of the top plate 140 is formed of a polypropylene material. This allows the microwave oven to be disposed in contact with the wall surface of the heating box 110 having a high temperature, and allows the microwaves radiated into the heating box 110 to pass therethrough. In this way, since the flat plate portion 140a of the top plate portion 140 is formed of a translucent material having a light guiding property in the plane direction, light with high luminance can be diffused, and surface illumination can be performed softly.
A top plate opening 141 is provided as an opening on the front side of the top plate 140. Since the ceiling opening 141 is provided in the ceiling portion 140, the imaging portion 150 disposed on the upper wall 111a of the heating box 110 can image the inside of the heating box 110.
However, when the ceiling portion 140 is provided with the ceiling opening 141 for imaging the inside of the heating box 110, there is a possibility that the user of the heating cooker 1 touches the stirrer 109a disposed on the upper wall 111a through the ceiling opening 141. To prevent this, a radome 145 is provided between the stirrer 109a and the top plate 140. As shown in fig. 13, the antenna cover 145 is positioned in the opening of the ceiling opening 141 in a plan view. By disposing the antenna cover 145 in this manner, the user of the heating cooker 1 can be prevented from touching the stirrer 109a.
As shown in fig. 14, the upper illumination 171 disposed on the upper surface of the upper wall 111a is disposed above the top plate 140, and the left illumination 172 and the right illumination 173 are disposed below the top plate 140. This makes it possible to irradiate the object 2 with the illumination light from the upper illumination 171 as soft surface illumination, the upper illumination 171 being disposed on the same side as the imaging unit 150, i.e., on the upper side of the heating box 110 in a side view. Therefore, a sufficient amount of light can be supplied to the upper surface of the object 2, and the accuracy of the captured image can be prevented from being deteriorated due to halation, that is, high-luminance light in the captured image of the imaging unit 150.
In addition, since the left illumination 172 and the right illumination 173 are disposed below the top plate portion 140, a larger amount of light can be supplied to the heating box 110. The left illumination 172 and the right illumination 173 are disposed on the same side as the imaging unit 150 in plan view, i.e., on the front side of the heating box 110, and illuminate the inside of the heating box 110 with the horizontal direction as the main axis. This can prevent the imaging unit 150 from being directly irradiated with the illumination light of the left illumination 172 and the right illumination 173, thereby preventing the occurrence of halo in the captured image.
[ Effect ]
Next, the operation of the heating cooker 1 according to the present invention will be described mainly with reference to fig. 15 to 17.
Fig. 15 is a schematic diagram of a cooking device according to an embodiment of the present invention, as viewed from the side, illustrating a relationship between an illumination portion of the cooking device and illumination of the top plate 140. Fig. 16 is a schematic diagram of a relation in the imaging direction of the imaging unit 150 of the heating cooker according to the embodiment of the present invention, as viewed from the side. Fig. 17 is a schematic diagram showing a relationship between angles of view of the imaging unit 150 of the heating cooker according to the embodiment of the present invention, as viewed from the side.
As shown in fig. 15, an upper illuminator 171 is provided on the rear side of the upper wall 111a of the heating box 110 in a plan view. The upper light 171 includes a plurality of LEDs 171b as a light source so that the lighting direction is downward. The LED 171b is a light source having an LED with high luminance and high directivity as an element.
The light emitted from the LED 171b travels substantially linearly downward, i.e., toward the heating box 110. The light emitted from the LED 171b reaches the diffusion sheet 170 disposed below the upper illuminator 171. The diffusion sheet 170 diffuses incident light in the plane direction of the sheet. That is, the light emitted from the LED 171b is diffused in the horizontal direction by the diffusion sheet 170 and is emitted downward.
The light diffused by the diffusion sheet 170 enters the heating box 110 through the illumination opening 115a formed by a plurality of perforations. Since the opening of the perforation of the illumination opening 115a is small, it is possible to suppress the microwave from inside the heating box 110 from leaking out of the heating box 110 through the illumination opening 115a. In addition, since the illumination opening 115a is formed by a plurality of perforations, it is possible to provide a large amount of light into the heating compartment 110 while suppressing leakage of microwaves.
The light entering the heating box 110 from the illumination opening 115a reaches the top plate 140 while being diffused in the horizontal direction. Since the top plate 140 is made of a translucent material, the light having high brightness that reaches the top plate passes through the heating box 110 while being diffused in the horizontal direction. This reduces the concentration of brightness and supplies a sufficient amount of light to the upper surface of object 2 placed in heating box 110.
The top plate 140 guides the incident light in the planar direction, i.e., in the horizontal direction. This allows a wider range of the inside of the heating box 110 to be illuminated from the top plate 140. Therefore, a sufficient amount of light can be supplied to the wider upper surface of the object 2 placed in the heating box 110.
As described above, in the present invention, although LEDs, which are point light sources having high directivity and high luminance, are used as the light sources, it is possible to illuminate a wide range in the heating box 110 while preventing local high luminance, and to illuminate the inside of the heating box 110 from above as a surface light source capable of supplying a large amount of light.
An imaging unit 150 is provided on the front side of the upper wall 111a of the heating box 110, i.e., on the side close to the front opening 102. The imaging unit 150 is provided such that an imaging direction of the camera 154, that is, the optical axis 157 is inclined rearward with respect to the vertical direction of the heating cabinet 110.
The imaging unit 150 faces the inside of the heating box 110 through the wall surface opening 112 provided in the upper wall 111a and further through the ceiling opening 141 provided in the ceiling portion 140.
That is, the image pickup unit 150 picks up an image by directing the optical axis 157 into the heating box 110 through the wall surface opening 112 formed in the upper wall 111a and the ceiling opening 141 formed in the ceiling portion 140.
The illumination light irradiated from the upper illumination 171 is irradiated to the object 2 through the diffusion sheet 170 and the top plate portion 140. That is, the illumination of the object 2 from above is soft surface illumination. Thereby, the upper portion of the object 2 is illuminated with a large amount of light of reduced brightness over a wide range. Therefore, although the optical axis 157 of the imaging unit 150 is inclined so as to face the object 2, the brightness of the reflected light from the object 2 is reduced, but the light is supplied with a sufficient amount of light. Therefore, when the imaging unit 150 performs imaging, it is possible to suppress the occurrence of halos in the captured image due to high luminance.
Thus, in the present invention, since a sufficient amount of light can be supplied, the exposure time (or shutter opening/closing time) can be shortened. This can shorten the imaging time of the imaging unit 150, and improve the operability of the user of the heating cooker 1. Further, since the exposure time can be shortened, the captured image of the imaging unit 150 can be suppressed from being shaken even when the heating cooker 1 vibrates. Since the occurrence of halation can be suppressed while providing a sufficient amount of light, in the application of recognizing the above-described captured image, the accuracy of recognition can be improved.
As shown in fig. 13 to 15, a left illumination 172 is provided on the front side of the left side wall 111b of the heating box 110, and a right illumination 173 is provided on the front side of the right side wall 111c of the heating box 110.
The left illumination 172 and the right illumination 173 irradiate light in the left-right direction, i.e., the horizontal direction. This enables a sufficient amount of light to be supplied to the lower portion, i.e., the low position, in the heating box 110. Further, since light can be prevented from directly entering the imaging unit 150 from the left illumination 172 and the right illumination 173, occurrence of halo in the captured image of the imaging unit 150 can be prevented.
Further, a plurality of lights, i.e., a left light 172 and a right light 173, are used below the top plate 140. This can reduce the brightness of each illumination and increase the total light amount, thereby enabling the inside of the heating box 110 to be illuminated more uniformly and suppressing the occurrence of halos in the captured image of the imaging unit 150.
As shown in fig. 15, the imaging unit 150 is provided so that the optical axis 157 is inclined rearward with respect to the vertical direction of the heating box 110. A ceiling portion 140 extending from the position of the back wall 111d of the heating box 110 to the vicinity of the front opening 102 is provided below the imaging unit 150. Therefore, external light entering heating box 110 through front opening 102 from the outside of heating cooker 1 can be prevented from reaching camera 154 of imaging unit 150. This prevents halo from being generated in the image captured by the image capturing unit 150 by the external light.
The imaging unit 150 is disposed on the front side of the heating box 110, and is inclined rearward. Therefore, external light can be prevented from reflecting on the upper surface of object 2 placed in heating box 110 and reaching imaging unit 150, and halo can be prevented from being generated in the image captured by imaging unit 150.
As shown in fig. 16 to 17, the imaging unit 150 is provided such that the optical axis 157 is inclined rearward with respect to the vertical direction of the heating box 110. The imaging unit 150 faces the inside of the heating box 110 through the wall surface opening 112 provided in the upper wall 111a and further through the ceiling opening 141 provided in the ceiling portion 140.
The field of view range 158 shown in fig. 17 indicates a range of the imaging unit 150. By providing the top plate opening 141 in the top plate portion 140, the imaging unit 150 can image the object 2 placed in the heating box 110 in a wide field of view 158.
The positions of the front end of the top plate opening 141 are: a straight line passing through the front end of the ceiling opening 141 with the position of the camera 154 of the imaging unit 150 as a base point intersects the surface of the bottom wall 111e of the heating box 110. That is, the front end of the field of view range 158 of the camera 154 is formed so as not to intersect the front opening 102. This can prevent external light incident from the front opening 102 from directly entering the imaging unit 150. Therefore, it is possible to suppress occurrence of halation in the captured image of the imaging unit 150 due to external light.
As shown in fig. 13 and 17, the center of the top opening 141 in the front-rear direction is located rearward of the center of the imaging unit 150 in plan view. Accordingly, even in a configuration in which the imaging unit 150 is disposed so as to be inclined toward the rear of the heating box 110, the wide field of view 158 can be ensured while suppressing the incidence of external light from the front opening 102. That is, the imaging unit 150 can image a wide range of the object 2 placed in the heating box 110.
However, by providing top plate opening 141 in top plate portion 140, there is a possibility that a user of heating cooker 1 may touch stirrer 109a disposed in an upper portion of heating box 110. In the present invention, an antenna cover 145 covering the stirrer 109a from below is provided. As shown in fig. 13, the ceiling opening 141, the imaging surface of the imaging unit 150, and a part of the antenna cover 145 are disposed to overlap each other in the vertical transmission viewpoint. This prevents the user of the heating cooker 1 from touching the stirrer 109a.
However, if the antenna cover 145 is provided below the upper wall 111a of the heating box 110 so as to cover the agitator 109a, the field of view 158 (see fig. 17) of the imaging section 150 also provided on the upper wall 111a of the heating box 110 becomes narrow. In the present invention, as shown in fig. 16 to 17, 12, and 4, a slope 145a is provided on the front side of the antenna cover 145, that is, on the imaging unit 150 side. The slope 145a is set so as to be inclined toward the front side of the radome 145 along the inclination of the rear side of the field range 158. Thus, the rear end of the field of view 158 of the camera 154 can be a straight line passing through the rear end of the ceiling opening 141 with the position of the camera 154 of the imaging unit 150 as a base point. That is, a wide field of view range 158 can be ensured without being disturbed by the radome 145.
In this way, the rear end of the ceiling opening 141 is positioned such that a straight line passing through the rear end of the ceiling opening 141 with the position of the camera 154 of the imaging unit 150 as a base point intersects the surface of the rear wall 111d of the heating box 110. Thereby, the image pickup unit 150 can pick up an image of a wide range in the heating box 110. Further, the imaging unit 150 can image the object 2 placed in the heating box 110 and having a higher height. Thus, in the present invention, it is possible to photograph a wide range within the heating cabinet 110 while suppressing incidence of light from outside. This enables imaging of the object 2 of various heights. Further, the object 2 placed at various positions on the bottom surface of heating box 110 can be imaged.
(other embodiments)
As described above, the above-described embodiments are explained as examples of the technique disclosed in the present application. However, the technique of the present invention is not limited to this, and can be applied to an embodiment in which a change, a replacement, an addition, an omission, or the like is performed as appropriate.
Therefore, other embodiments are exemplified below.
In the above embodiment, the imaging unit 150 is configured to protect the imaging unit 150 from steam and scattered matter from the object to be heated by the shield. However, the imaging unit 150 may be protected from steam and scattered objects from the object to be heated by providing a glass plate or the like on the side of the imaging direction of the imaging unit 150.
In the above embodiments, LEDs are used as the light sources. However, instead of the LED, a light source having high luminance and a large amount of light, such as a laser light source or a halogen light source, may be used.
The illumination unit includes three illuminations, i.e., an upper illumination 171, a left illumination 172, and a right illumination 173. However, the number of illuminations may be any number of 1 or more.
In the above embodiment, the configuration in which the upper illuminator 171 is disposed on the upper side of the upper wall 111a of the heating compartment 110 is shown. However, the upper illumination 171 may be arranged above the top plate 140 and configured to illuminate toward the top plate 140.
In the above embodiment, the top plate 140 is formed of a flat plate 140a as a main surface by a laminated plate made of glass cloth and silicone. However, the top plate 140 may be made of a translucent material that diffuses and transmits light softly.
The main surface of the top plate 140 is formed by a flat plate 140a. However, the main surface may be formed of a curved surface or a plurality of flat surfaces. The top plate opening 141 may have an open end at a part of the periphery of the opening in a plan view.
In the above embodiment, the radome 145 is formed of a polypropylene material. However, the radome 145 is not limited to a polypropylene material as long as it is a flame-retardant material that transmits microwaves.
The antenna cover 145 is formed in a substantially circular shape in a plan view. However, the antenna cover 145 may be provided so as to be exposed below the upper wall 111a of the heating box 110, and may have a shape covering the stirrer 109a or the heating portion.
According to one aspect of the present invention, a heating cooker includes: a heating box having a front opening; a heating unit that heats an object to be heated stored in the heating box; and a camera, the optical axis of which is inclined with respect to the vertical direction, and which is disposed on the upper wall of the heating box so as to face the inside of the heating box. Further, the heating cooker includes: a ceiling portion disposed along the upper wall below the upper wall of the heating box, the ceiling portion being provided with a ceiling opening as an opening through which a camera photographs the inside of the heating box; and an antenna cover disposed between the top wall and the top plate of the heating box and covering the antenna of the heating unit attached to the upper portion of the heating box from below.
According to this configuration, the imaging unit can image a wide field of view while protecting the upper portion inside the heating box.
In addition, according to one aspect of the present invention, the camera of the heating cooker may be disposed on the upper wall of the heating box on the front side of the center of the heating box in plan view, and the lower side of the optical axis may be inclined toward the rear side with respect to the vertical direction of the heating box.
According to this configuration, a wide field of view can be captured while suppressing halation caused by incident light from outside the heating box.
In addition, according to one aspect of the present invention, the end portion of the top plate opening of the heating cooker may be formed such that a virtual straight line passing through the end portion of the top plate opening with the center of the imaging surface of the camera as a base point intersects the bottom wall of the heating box.
According to this configuration, it is possible to take a wide field of view range while further suppressing halation caused by incident light from outside the heating box.
In addition, according to one aspect of the present invention, the rear end portion of the top plate opening of the heating cooker may be formed such that a virtual straight line passing through the rear end portion of the top plate opening with the center of the imaging surface of the camera as a base point intersects the inner wall of the heating box.
According to this configuration, it is possible to take images of objects of various heights while protecting the upper portion in the heating box.
Further, according to an aspect of the present invention, a slope may be provided on the front side of the radome of the heating cooker so that the field range of the camera does not become narrow. According to this configuration, the imaging unit can image a wide field of view while protecting the upper portion inside the heating box.
In addition, according to an aspect of the present invention, the top plate opening of the heating cooker may be opened such that at least a part of the imaging surface of the camera and the end portion of the front side of the antenna cover are positioned in the opening when viewed from above. According to this configuration, it is possible to take a wide field of view range while further suppressing halation caused by incident light from outside the heating box.
Industrial applicability
The present invention can be applied to a heating cooker in which an image is taken by an image pickup unit.
Description of the reference symbols
1 heating cooker
2 heated object
100 case
101 front frame
102 front opening
105 control part
106a, 106b magnetron (heating part)
107a, 107b waveguides (heating part)
108a, 108b radiation openings (heating portions)
109a, 109b stirrer (aerial)
110 heating box
111a upper wall
111b left side wall
111c right side wall
111d inner wall
111e bottom wall
112 wall opening
113 wall surface concave part
114 concave bottom opening
115a, 115b, 115c illumination opening
120 door
121 handle
122 glass window
130 operating part
131 operating switch
132 display part
140 top plate part
141 opening in the top plate
145 antenna housing
145a inclined plane
150 imaging unit
151 supporting frame
154 Camera
157 optical axis
158 field of view range
160 air supply part
170 diffusion sheet
171 upper lighting (lighting part)
171a lighting substrate
171b LED
171c illumination support
172 left light (Lighting part)
173 right illumination (illumination section).
Claims (5)
1. A heating cooker in which, in a cooking operation,
the heating cooker is provided with:
a heating chamber having a front opening;
a door having a light-transmitting glass window for opening and closing the front opening;
a heating unit that heats an object to be heated stored in the heating box;
a camera having an optical axis inclined toward the rear side of the heating chamber with respect to the vertical direction, and disposed on the upper wall of the heating chamber so as to face the inside of the heating chamber and in front of the approximate center of the heating chamber;
a ceiling portion disposed along the upper wall below the upper wall of the heating box, the ceiling portion having a ceiling opening through which the camera photographs the inside of the heating box; and
a radome which is disposed between the top wall and the top plate of the heating box and is provided so as to cover an antenna of the heating unit attached to an upper portion of the heating box from below,
the portion of the top plate portion other than the top plate opening and the antenna cover do not enter the field of view range of the camera, and an imaginary straight line on the foremost side with the center of the imaging surface of the camera as a base point in the field of view range intersects the bottom wall of the heating box.
2. The heating cooker of claim 1,
the end part of the rear side of the top plate opening is formed as follows: an imaginary straight line passing through an end portion of the opening of the top plate, which is away from the front surface opening side, with a center of an imaging surface of the camera as a base point intersects with a back wall of the heating box.
3. The heating cooker according to claim 1,
a slope is provided on the front side of the radome so as not to narrow the field range of the camera.
4. The heating cooker according to claim 2,
a slope is provided on the front side of the radome so as not to narrow the field range of the camera.
5. The heating cooker according to any one of claims 1 to 4,
the top plate opening is opened in the following manner: at least a part of the shooting surface of the camera and the end part of the front side of the antenna cover are positioned in the top plate opening when looking up.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-085910 | 2018-04-27 | ||
| JP2018085910A JP7126046B2 (en) | 2018-04-27 | 2018-04-27 | heating cooker |
| PCT/JP2019/017106 WO2019208526A1 (en) | 2018-04-27 | 2019-04-23 | Heating cooking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112005055A CN112005055A (en) | 2020-11-27 |
| CN112005055B true CN112005055B (en) | 2023-04-04 |
Family
ID=68294068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980027452.XA Active CN112005055B (en) | 2018-04-27 | 2019-04-23 | Heating cooker |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7126046B2 (en) |
| CN (1) | CN112005055B (en) |
| TW (1) | TWI727307B (en) |
| WO (1) | WO2019208526A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4299988A4 (en) * | 2021-02-26 | 2024-06-12 | Sharp Kk | Cooker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5369945A (en) * | 1976-12-03 | 1978-06-21 | Hitachi Heating Appliance Co Ltd | Microwave heater |
| JP2001185344A (en) * | 1999-12-27 | 2001-07-06 | Sanyo Electric Co Ltd | Microwave oven |
| WO2017077695A1 (en) * | 2015-11-05 | 2017-05-11 | パナソニックＩｐマネジメント株式会社 | Cooking device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5369945B2 (en) | 2009-07-08 | 2013-12-18 | 富士通株式会社 | Configuration information setting method and information processing apparatus |
| EP2638325B1 (en) * | 2010-11-12 | 2015-03-11 | Convotherm Elektrogeräte GmbH | A cooking device, and a procedure for cooking food |
| JP6176919B2 (en) * | 2012-12-04 | 2017-08-09 | シャープ株式会社 | Cooker |
-
2018
- 2018-04-27 JP JP2018085910A patent/JP7126046B2/en active Active
-
2019
- 2019-04-17 TW TW108113410A patent/TWI727307B/en active
- 2019-04-23 WO PCT/JP2019/017106 patent/WO2019208526A1/en active Application Filing
- 2019-04-23 CN CN201980027452.XA patent/CN112005055B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5369945A (en) * | 1976-12-03 | 1978-06-21 | Hitachi Heating Appliance Co Ltd | Microwave heater |
| JP2001185344A (en) * | 1999-12-27 | 2001-07-06 | Sanyo Electric Co Ltd | Microwave oven |
| WO2017077695A1 (en) * | 2015-11-05 | 2017-05-11 | パナソニックＩｐマネジメント株式会社 | Cooking device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019208526A1 (en) | 2019-10-31 |
| TWI727307B (en) | 2021-05-11 |
| JP2019190771A (en) | 2019-10-31 |
| CN112005055A (en) | 2020-11-27 |
| JP7126046B2 (en) | 2022-08-26 |
| TW202004089A (en) | 2020-01-16 |
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