WO2019065251A1

WO2019065251A1 - Heating cooker

Info

Publication number: WO2019065251A1
Application number: PCT/JP2018/033858
Authority: WO
Inventors: 犬飼　正浩
Original assignee: アイリスオーヤマ株式会社
Priority date: 2017-09-29
Filing date: 2018-09-12
Publication date: 2019-04-04
Also published as: JP6556201B2; CN111108814B; CN111108814A; JP2019067621A

Abstract

Provided is a heating cooker which is easier to use for cooking by users positioned around the heating cooker and which allows the users to cook comfortably. The heating cooker (A) is provided with: a heating coil (11) which heats an item to be heated by electromagnetic induction; a housing (2) in which the heating coil (11) is housed; a first operating unit (3a) disposed in a first portion (2a) of the housing (2); a second operating unit (3b) disposed in a second portion (2b) of the housing (2) opposing the first portion (2a); and an exhaust heat opening (43) provided in the housing (2) to discharge internal heat to the outside. The exhaust heat opening (43) is disposed between the first portion (2a) and the second portion (2b).

Description

Cooker

The present invention relates to a heating cooker provided with a heating coil for heating an object to be heated by electromagnetic induction.

What improved the usability in group cooking has been proposed as a heating cooker (patent document 1).
The induction heating cooker described in Patent Document 1 supplies a high frequency current to a main body, a heating coil inside the main body, an electrically insulating top plate disposed above the heating coil, and the heating coil. And a first operation panel capable of performing induction cooking operation in front of the main body, and a second operation panel behind the center of the heating coil.

Japanese Patent Application Publication No. 2004-6076

In the induction heating cooker of Patent Document 1, there is no specific description for discharging the heat of the heating coil at the time of cooking to the outside, and in some cases, the discharged heat may hit the user. In addition, when a hot air hits a user, it not only prevents cooking but also makes the user uncomfortable.
This invention is made in view of such a situation, Comprising: While improving the usability in group cooking, it aims at providing a heating cooker which a user can cook comfortably.

In order to solve the above-mentioned subject, a cooking-by-heating machine concerning one mode of the present invention heats a thing to be heated by electromagnetic induction, a case which stores the heating coil, and the 1st part of the case A second operation unit provided in the housing, and a second operation unit provided in the housing, the second operation unit provided in the housing, and discharging the internal heat to the outside A heat port is provided, and the heat exhaust port is provided between the first portion and the second portion.

ADVANTAGE OF THE INVENTION According to this invention, while being able to improve the usability in group cooking, a user can cook comfortably.

It is a perspective view which shows the electromagnetic cooker which concerns on 1st Embodiment, (a) is the figure seen from the upper direction, (b) is the figure seen from the downward direction. It is the perspective view which looked at the decomposition | disassembly state of the electromagnetic cooker from upper direction. It is a perspective view which shows a heating part, (a) is the figure seen from the upper direction, (b) is the figure seen from the downward direction. It is the perspective view which inverted the cover. It is a top view of a main part. (A) is the perspective view which looked at a 1st operation part from upper direction, (b) is the perspective view which looked at a 2nd operation part from upper direction. It is the perspective view which looked at the state which removed the top plate and the cover from upper direction. (A) is a perspective view of the hood cover as viewed from below, and (b) is a perspective view of the hood cover as viewed from above. It is a top view in the state where a top plate, a cover, and a hood cover were removed. It is sectional drawing which shows the positional relationship of a heating coil, a fan, and a control circuit unit.

<Overview>
A heating cooker according to one aspect includes a heating coil for heating an object to be heated by electromagnetic induction, a case for housing the heating coil, a first operation unit provided at a first portion of the case, and A second operation unit provided at a second portion facing the first portion of the housing, and a heat exhaust port provided at the housing and discharging heat from the inside to the outside; It is provided between the first portion and the second portion.
A heating cooker according to another aspect includes an intake port provided in the housing and for drawing in outside air, and a fan disposed in the housing and for drawing in air from the intake port, the air intake being provided A mouth is provided on the opposite side of the heat exhaust port across the center of the heating coil. As a result, the outside air taken in from the intake port flows toward the heat exhaust port, and the heat in the housing can be efficiently discharged. Here, “the intake port is provided on the opposite side of the heat exhaust port across the center of the heating coil” means that the side on which the intake port is formed and the heat exhaust port are formed. It means that the side is opposite to the center of the heating coil (located on both sides). For example, in plan view, when a part of the intake port overlaps the heating coil, The case where a part overlaps with a heating coil etc. are included.
The heating cooker which concerns on another aspect forms the flow path which the external air taken in from the said inlet by the said fan goes to the said heat exhaust port in the said housing | casing, The said heating coil is provided in the said flow path midway. Thereby, the heat of a heating coil can be discharged efficiently.

In the heating cooker according to another aspect, the flow path includes a first flow path wall provided along the opening edge of the intake port, and a second flow path wall provided along the periphery of the heating coil. Have. Thereby, the inhaled outside air can be efficiently used for heat discharge.
In the heating cooker according to another aspect, the housing integrally includes the first flow path wall and the second flow path wall. Thereby, the number of parts can be reduced and the cost can be reduced.
The heating cooker which concerns on another aspect is provided with the control circuit part which controls the said heating coil based on operation of a said 1st operation part and a 2nd operation part in the said housing | casing, At least one part of the said control circuit part is said Facing the flow path. Thereby, in addition to the heat of the heating coil, the heat of the control circuit unit can be efficiently discharged.
The heating cooker which concerns on another aspect WHEREIN: The 1st cable which electrically connects the said 1st operation part and the said control circuit part, and the 2nd which electrically connects the said 2nd operation part and the said control circuit part A cable is disposed in the housing in a state separated from the flow path. As a result, the first cable and the second cable are separated from the heating coil, and noise from the heating coil can be less likely to be received.

Embodiment
1. Overview As an example of a heating cooker, a so-called electromagnetic cooker A, which heats an object to be heated by electromagnetic induction, will be described using FIGS. 1 and 2.
The electromagnetic cooker A is a thin rectangular box-like desktop type.
The electromagnetic cooker A includes a heating unit 1 including a heating coil 11, a housing unit 2 accommodating the heating unit 1, and an operation unit 3 for operating the heating unit 1. Here, the operation unit 3 includes a first operation unit 3a provided in the first portion 2a of the housing 2 and a second operation portion 3b provided in the second portion 2b of the housing 2. When the electromagnetic cooker A is viewed from above, the first portion 2a faces the second portion 2b. Moreover, the housing | casing part 2 is corresponded to an example of the housing | casing which concerns on this invention.
Here, in plan view, a direction connecting the first portion 2a and the second portion 2b is taken as a vertical direction, and a direction orthogonal to the vertical direction is taken as a horizontal direction. Further, a direction perpendicular to the vertical direction and the horizontal direction is referred to as the vertical direction or the front and back direction.
As shown in FIG. 2, the housing portion 2 includes a main body 20 having an upper opening, a cover 25 which covers the opening of the main body 20 and has an opening 259 at its central portion, and a top plate 28 which covers the opening 259 of the cover 25. It consists of

As shown in FIG. 2, the electromagnetic cooker A accommodates the blower 4 for regulating the temperature rise of the heating unit 1 during cooking in the housing 2. The blower 4 sucks in air from the air inlet 42 of the housing 2 and exchanges heat with the heating unit 1, and then discharges the air from the heat exhaust port 43 of the housing 2.
In the housing unit 2, the third portion 2c provided with the heat exhaust port 43 is located between the first portion 2a with the first operation portion 3a and the second portion 2b with the second operation portion 3b. Do. In other words, the third portion 2c may be a portion other than the first portion 2a and the second portion 2b.
The electromagnetic cooker A is provided with the flow path 5 for the external air taken in by the air blower 4 to heat-exchange with the heating part 1 efficiently. The flow path 5 is a space formed in the housing 2 and is indicated by an arrow to distinguish it from the main body 20 of the housing 2.

As shown in FIG. 2, the electromagnetic cooker A accommodates, in the housing unit 2, a control circuit unit 6 that supplies power to the heating unit 1 according to the operation of the operation unit 3. The electromagnetic cooker A is provided with a cord connection portion 7 for detachably connecting a power cord (not shown) to the housing portion 2. The cord connection unit 7 is electrically connected to the control circuit unit 6.
Each part will be described below.

2. Each part (1) Heating part An example of a heating part is demonstrated using FIG.
The heating unit 1 has a heating coil 11. The heating coil 11 is configured by winding a conducting wire (not shown) around the conducting wire fixing portion 12. The wire fixing portion 12 has a disk shape as a whole. The wire fixing portion 12 radially connects between the central portion 121 and the outer peripheral portion 123, the disk-shaped central portion 121 at the center, the annular outer peripheral portion 123 disposed concentrically with the central portion 121, and the like. And a connecting portion 125.
The wire fixing portion 12 has a groove 127 for winding a conductive wire. A groove 127 is provided on the outer peripheral side at the central portion 121, on the inner peripheral side at the outer peripheral portion 123, and in the entire radial direction at the connecting portion 125. The wire fixing portion 12 has a through hole 121 a in the central portion 121 and a through hole 123 a in the outer peripheral portion 123. The through

holes

121a and 123a are for conducting wires.
The wire fixing portion 12 is attached to the main body 20 of the housing 2. A screw is used for the attachment here, and a through hole 123 b for the screw is provided in the projecting portion 129 projecting from the outer peripheral portion 123. There are three overhanging portions 129 at intervals in the circumferential direction.

(2) Housing Unit The housing unit 2 is composed of the main body 20, the cover 25 and the top plate 28 as described above. The configuration of each part will be described below.
(2-1) Top Plate An example of the top plate 28 will be described with reference to FIG.
The top plate 28 has a flat plate shape having a shape corresponding to the planar shape of the electromagnetic cooker A or a shape close to the corresponding shape. The planar shape of the induction cooker A is rectangular, and the top plate 28 is rectangular. The top plate 28 here is made of, for example, an ABS resin and a polycarbonate resin. In addition, on the upper surface of the top plate 28, a guide 281 for placing a cooking tool is provided.

(2-2) Cover An example of the cover 25 will be described with reference to FIGS. 2 and 4.
The cover 25 has a frame shape corresponding to the planar shape of the induction cooker A. Here, the cover 25 has a rectangular frame plate shape. The frame-like inside is an opening 259.
The cover 25 has a plate mounting portion 251 for mounting the top plate 28, a first operation cover portion 253a covering the first operation portion 3a, and a second operation cover portion 253b covering the second operation portion 3b. As shown in FIG. 4, the cover 25 has one or a plurality of cover-

side attachment parts

255 and 256 for attaching to the main body 20 and a cover-side positioning part 257 for positioning with respect to the main body 20. There is.
The cover 25 has a rectangular frame-like flat plate portion 271, an inner flange portion 273 projecting from the inner peripheral edge of the flat plate portion 271 to the back side, and an outer flange portion 275 projecting from the outer peripheral edge to the back side of the flat plate portion 271. The plate mounting portion 251, the first operation cover portion 253a, and the second operation cover portion 253b use a flat plate portion 271 or the like.

(2-2-1) Plate Mounting Unit An example of the plate mounting unit 251 will be described with reference to FIG.
The plate mounting portion 251 is provided around the opening 259. The opening 259 is slightly smaller than the top plate 28. The plate mounting portion 251 is provided in a rectangular frame shape between the first operation cover portion 253a and the second operation cover portion 253b of the cover 25 in a plan view.
The plate mounting portion 251 has an outer abutting portion 251 a that abuts on a peripheral edge including the peripheral edge of the top plate 28. The plate mounting portion 251 has an inner abutting portion 251 b that abuts on an inner peripheral side portion located inside the outer peripheral portion of the top plate 28.
The outer contact portion 251a and the inner contact portion 251b have a rectangular frame shape in plan view. In plan view, the lateral edge of the outer abutment portion 251 a coincides with the lateral edge of the top plate 28. The plate mounting portion 251 has a rectangular annular groove portion 251c recessed on the back side between the outer abutment portion 251a and the inner abutment portion 251b.

(2-2-2) First Operation Cover Unit An example of the first operation cover unit 253a will be described with reference to FIG.
The first operation cover portion 253a has through

holes

261a and 263a for the first mounting component 33a (see FIG. 6) of the first operation portion 3a. The through hole 261a here is for the switch component 331a, and the through hole 263a is for the display screen 333a.
The first operation cover portion 253a has one or more first mounting portions for mounting the first operation portion 3a. A screw is used for mounting, and a first mounting portion is configured by a screw hole 265a in which the screw is screwed.
In order to separate the first operation board 31a from the back surface of the flat plate portion 271, the first mounting portion (screw hole 265a) is provided in the boss portion 267a, and the extension rod 269a supporting the first operation board 31a is in the flat plate portion 271. One or more are provided.

(2-2-3) Second Operation Cover Unit An example of the second operation cover unit 253b will be described with reference to FIG.
The second operation cover portion 253b has through

holes

261b and 263b (263b refer to FIG. 2) for the second mounting component 33b (see FIG. 6) of the second operation portion 3b. The through hole 261 b here is for the switch component 331 b, and the through hole 263 b is for the display component 333 b. The through hole 263b communicates with the inside of the cylindrical portion 262b into which the display component 333b is inserted.
The second operation cover portion 253 b has one or more second mounting portions for mounting the second operation portion 3 b. A screw is used for mounting, and a second mounting portion is configured by a screw hole 265b in which the screw is screwed.
In order to separate the second operation board 31b from the back surface of the flat plate portion 271, the second mounting portion (screw hole 265b) is provided in the boss portion 267b, and the extension rod 269b supporting the second operation board 31b is in the flat plate portion 271. One or more are provided.

(2-2-4) Cover-Side Attachment Section An example of the cover-

side attachment sections

255, 256 will be described with reference to FIG.
The cover side attachment portion 255 is provided on the back surface of the first operation cover portion 253a and the second operation cover portion 253b. A screw is used to attach the cover 25, and the cover side attachment portion 255 has a boss portion 255a extending on the back side and a screw hole 255b provided in the boss portion 255a. In addition, the extending tip end of the boss 255a is fitted (internally fitted) to the cylindrical portion 210d of the main body side cover attaching portion 210 of the main body 20.
The cover side attachment portion 256 is provided on the outer side collar portion 275 other than the second operation cover portion 253 b. The cover 25 is attached using an engaging portion, and the cover side attachment portion 256 is constituted by a convex portion which protrudes inward from the outer flange portion 275. In addition, in FIG. 4, the convex portions other than the outer side ridge portion 275 on the right side can not be seen behind the outer side ridge portion 275.

(2-2-5) Cover-Side Positioning Unit An example of the cover-side positioning unit 257 will be described with reference to FIG.
The cover-side positioning unit 257 is formed of an extension plate extending downward from the back surface of the plate mounting unit 251, the first operation cover unit 253a, and the second operation cover unit 253b. The outer peripheral surface of the cover-side positioning portion 257 abuts on the inner surfaces of the side walls 202 to 205 of the main body 20. A plurality of cover side positioning sections 257 are provided at intervals along the outer peripheral edge.

(2-3) Main Body An example of the main body 20 will be described with reference to FIG.
The main body 20 is in the form of a thin box whose upper portion is open. The main body 20 has a rectangular shape which is long in the vertical direction in plan view. The main body 20 has a bottom wall 201, a first side wall 202, a second side wall 203, a third side wall 204 and a fourth side wall 205.
Here, the first side wall 202 is a side wall located on the side of the first operation portion 3a. The second side wall 203 is a side wall located on the second operation unit 3 b side, and faces the first side wall 202. The third side wall 204 is a side wall located on the heat exhaust port 43 side. The fourth side wall 205 is a side wall located on the blower 4 side, and faces the third side wall 204. In addition, the connection part of each side wall is a curved side wall 206 in a plan view.
The main body 20 has a first operation storage portion 207a for storing the first operation portion 3a, a second operation storage portion 207b for storing the second operation portion 3b, and a large storage portion 208 for storing each portion.

The main body 20 includes main body side

cover attachment portions

210 and 211 for attaching the cover 25, a circuit fixing portion 212 for fixing the control circuit portion 6, a circuit support portion 213 for supporting the control circuit portion 6, and a heating coil 11 includes one or more of a coil fixing portion 214 for fixing 11, a hood fixing portion 215 for fixing the blower 4 and the hood cover 57, and a cord attaching portion 231 for attaching the cord connecting portion 7. .
The main body 20 has a flow path forming portion 51 for forming the flow path 5. The hood cover 57 constitutes a part of the flow path forming portion 51. The main body 20 has an intake port 42 serving as an inlet of the flow path 5 and a heat exhaust port 43 serving as an outlet of the flow path 5.

(2-3-1) First operation storage portion The first operation storage portion 207a is a first end portion 201a on the side of the first operation portion 3a in the longitudinal direction of the bottom wall 201, a first side wall 202, and a first side wall. It is a space surrounded by

curved side walls

206 and 206 on both sides of 202 and the first partition wall 221 a. When the cover 25 to which the first operation unit 3a is attached is attached to the main body 20, the first operation unit 3a is accommodated in the first operation accommodation unit 207a.
The first partition wall 221a is erected from the bottom wall 201 in parallel with the first side wall 202, and extends to the vicinity of the first operation cover portion 253a of the cover 25 as shown in FIG. Thus, the air heated by the heating unit 1 is restricted from entering the first operation storage unit 207a.

(2-3-2) Second operation storage portion The second operation storage portion 207b is a second end portion 201b of the bottom wall 201 on the side of the second operation portion 3b in the longitudinal direction, a second side wall 203, and a second side wall. This is a space surrounded by the

curved side walls

206 and 206 on both sides of 203 and the second partition wall 221 b. When the cover 25 to which the second operation unit 3b is attached is attached to the main body 20, the second operation unit 3b is accommodated in the second operation accommodation unit 207b.
The second partition wall 221b is erected from the bottom wall 201 in parallel with the second side wall 203, and extends to the vicinity of the second operation cover portion 253b of the cover 25 as shown in FIG. Thus, the air heated by the heating unit 1 is restricted from entering the second operation storage unit 207b.

(2-3-3) Large Housing Unit As shown in FIG. 2, the large housing unit 208, which is an example, houses the control circuit unit 6, the heating unit 1, the blower 41, and the like.
The large housing portion 208 includes an intermediate portion 201c excluding the first end portion 201a and the second end portion 201b of the bottom wall 201, a first partition wall 221a, a second partition wall 221b, a third sidewall 204, and It is a space surrounded by the four side walls 205. The positional relationship between the control circuit unit 6, the heating coil 11, and the blower 41 will be described later.

(2-3-4) Body-Side Cover Attachment Section A screw is used to attach the cover 25 to the body 20. The main body side cover attaching part 210 has the covered cylindrical part 210a which protrudes on the front side from the bottom wall 201, and the through-hole 210c provided in the cover part 210b of the covered cylindrical part 210a. The lid portion 210b is halfway along the projecting direction of the lidded cylindrical portion 210a, and the front side of the lid portion 210b is a cylinder portion 210d.
With the boss portion 255a of the cover side attachment portion 255 fitted in the cylindrical portion 210d of the main body side cover attachment portion 210, a screw disposed inside the covered cylindrical portion 210a is inserted through the through hole 210c, as shown in FIG. As shown in FIG. 6, the screw hole 255b of the cover side attachment portion 255 is screwed.
In addition, the main body side cover attachment part 210 is provided in a total of five places of the inner side of the four curved side walls 206, and the approximate center of the horizontal direction of the 2nd operation accommodating part 207b.

An engaging portion is used to attach the cover 25 to the main body 20. As shown in FIG. 7, the main-body-side cover attachment portion 211 includes an extension piece 211a extending upward from a total of six upper ends of the first side wall 202, the third side wall 204, and the fourth side wall 205, and an extension piece 211a. And a through hole 211b provided. The cover side attachment part (convex part) 256 shown in FIG. 4 engages with the through hole 211 b.

(2-3-5) Circuit Fixing Unit and Circuit Supporting Unit A screw is used to fix the control circuit unit 6 to the main body 20. The circuit fixing portion 212 has a boss 212a protruding from the middle portion 201c of the bottom wall 201, and a screw hole 212b provided in the boss 212a.
The circuit support portion 213 is provided across the bottom wall 201 and the third side wall 204 and across the bottom wall 201 and the second partition wall 221 b.
The circuit support portion 213 has a back contact portion 213a in contact with the back surface of the circuit board 61 and a front contact portion 213b in contact with the surface of the circuit board 61 on the front side of the back contact portion 213a. The distance between the back contact portion 213 a and the front contact portion 213 b corresponds to the thickness of the circuit board 61.
The back contact part 213a here is comprised by a pair of extending | stretching board spaced apart and extended to the front side from the bottom wall 201. As shown in FIG. The front contact portion 213 b here is formed of a stretched plate extending in parallel to the bottom wall 201 from a portion of the third side wall 204 and the second partition wall 221 b close to the bottom wall 201.

(2-3-6) Coil Fixing Unit A screw is used to fix the heating unit 1 to the main body 20. The coil fixing portion 214 has a boss portion 214a extending from the middle portion 201c of the bottom wall 201 to the front side, and a screw hole 214b provided in the boss portion 214a.
A screw passing through the through hole 123 b of the projecting portion 129 of the wire fixing portion 12 is screwed into the screw hole 214 b of the coil fixing portion 214. The overhanging portion 129 of the heating coil 11 is supported by the upper end surface of the boss portion 214a.

(2-3-7) Hood Fixing Section Fixing of the hood cover 57 to the main body 20 is performed together with the blower 4. That is, in a state where the fan 4 is supported by the hood fixing portion 215 of the bottom wall 201, as shown in FIG. 7, the hood cover 57 covering the fan 4 is fixed to the hood fixing portion 215.
The hood fixing portion 215 has a pair of stepped columnar portions 215a erected from the bottom wall 201 and a columnar portion 215b erected from between the pair of stepped columnar portions 215a, and a screw hole 215c is formed in the columnar portion 215b. Is provided.

(2-3-8) Flow Channel Forming Unit The flow channel forming unit 51 discharges air from the heat exhaust port 43 via the control circuit unit 6 and the heating coil 11 so that the outside air taken in from the intake port 42 is discharged. The flow path 5 is formed. The flow passage forming portion 51 is constituted by a first flow passage wall 52, a second flow passage wall 53, a guide wall 54 and the like which are provided upright from the middle portion 201c of the bottom wall 201.
The first flow path wall 52, the second flow path wall 53, the guide wall 54, and the like will be described in the item "(6) flow path" described later.

(2-3-9) Intake Port and Heat Exhaust Port The intake port 42 is provided at a portion which is the middle portion 201c of the bottom wall 201 and is close to the first partition wall 221a. The intake port 42 is provided at a portion close to the fourth side wall 205. Here, the intake port 42 is composed of a plurality of small holes 42a arranged concentrically.
The bottom wall 201 in which the intake port 42 is formed is a raised bottom in order to increase the amount of intake from the intake port 42. That is, as shown in (b) of FIG. 1, the intake port 42 is provided in the raised bottom portion 201 d for increasing the distance from the installation surface. The raised bottom portion 201d is provided so as to straddle the first side wall 202, the third side wall 204, and the fourth side wall 205, and is configured to receive air from a wide range. As shown in FIG. 1, the bottom wall 201 of the intake port 42 protrudes to the back in a bottomed cylindrical shape, and small holes 42 a are formed in the cylindrical portion and the bottom portion.

The heat exhaust port 43 is provided in the third side wall 204. As shown in FIG. 5, the heat exhaust port 43 is composed of a plurality of small holes 43 a provided along the longitudinal direction of the third side wall 204. The small hole 43a has a rectangular shape which is long in the vertical direction.

(2-3-10) Cord Mounting Portion The cord mounting portion 231 will be described with reference to FIG.
The cord attachment portion 231 is provided on the third side wall 204. The cord attachment portion 231 has an attachment port 233 (see FIG. 2) provided on the third side wall 204, an attachment groove 235 provided on the inner surface of the third side wall 204, and a cord on the bottom wall 201 side of the third side wall 204. And a support portion 237 for supporting the connection portion 7.

(3) Operation Unit An example of the operation unit 3 will be described with reference to FIG.
(3-1) First Operation Unit This will be described using (a) of FIG.
The first operation unit 3a includes a first operation board 31a and a first mounting component 33a mounted on the first operation board 31a.
The first mounting component 33a includes a plurality of switch components 331a such as a power switch and a temperature adjustment switch, and a display screen 333a for displaying a temperature state. In the figure, a part of a plurality of switch components is denoted by a reference numeral.
The first operation portion 3 a has a mounting portion for mounting on the first operation cover portion 253 a of the cover 25 of the housing 2. Screws are used for mounting, and a plurality of screw through holes 35a are provided in the first operation board 31a as a mounting portion.

(3-2) Second Operation Unit This will be described using (b) of FIG.
The second operation unit 3b includes a second operation board 31b and a second mounting component 33b mounted on the second operation board 31b.
As the second mounting component 33b, there are a plurality of switch components 331b such as a temperature adjustment switch, and a display component 333b for displaying a temperature state. In the drawing, reference numerals are given to a part of a plurality of display components.
The second operation portion 3 b has a mounting portion for mounting on the second operation cover portion 253 b of the cover 25 of the housing 2. A screw is used for mounting, and a plurality of screw through holes 35b are provided in the second operation board 31b as a mounting portion.
The second operation portion 3 b has a through hole 37 b for the cover side attachment portion 255 for attaching the cover 25 to the main body 20.

(4) Blower An example of the blower 4 is demonstrated using FIG.
The blower 4 has a drive unit (not shown), a fan 413 attached to the rotation shaft of the drive unit, and an arm 415 for mounting the drive unit.
The blower 4 is fixed to the hood fixing portion 215 of the housing 2 as shown in FIG. 5 in a state of facing the air inlet 42 of the housing 2 as shown in FIG.
The blower 4 is fixed in a state in which a substantially lower half in a direction in which the rotation shaft extends is fitted in a portion which is recessed in a bottomed cylindrical shape for forming the intake port 42.
The blower 4 has a pair of through holes 415 a in the arm 415. The through holes 415 a engage with the stepped portions of the pair of stepped columnar portions 215 a of the hood fixing portion 215 of the bottom wall 201 of the housing 2. Thus, the blower 4 is supported by the hood fixing portion 215 of the housing 2.
The blower 4 has a holed recess 415 b between a pair of through holes 415 a of the arm 415. As shown in FIG. 8, the step 573c of the fixing portion 573 of the food cover 57 is fitted in the recess of the holed recess 415b, and the hood fixing portion 215 of the housing 2 is formed in the through hole of the holed recess 415b. The screw screwed into the screw hole 215c of the columnar portion 215b is inserted.

(5) Control Circuit Unit An example of the control circuit unit 6 will be described with reference to FIG.
The control circuit unit 6 controls the heating coil 11 based on the operation of the operation unit 3 by the user. The control circuit unit 6 controls the supply of power to the first operation unit 3a and the second operation unit 3b.
The control circuit unit 6 includes a circuit board 61 and a plurality of

electronic components

62, 63, 64 and the like mounted on the circuit board 61. The control circuit unit 6 includes, on the circuit board 61, a heat sink 65 thermally connected to the

electronic components

63, 64 in order to suppress a temperature rise of the

electronic components

63, 64 that easily generate heat.
When the electronic component 62 has a rectangular shape in plan view, the electronic component 62 is provided in a state in which the longitudinal direction is orthogonal to the second side wall 204. Also, the electronic component 62 is shown only in FIGS. 2 and 7.

The control circuit unit 6 includes, on the circuit board 61, a circuit side fixing portion 611 for fixing the bottom wall 201 of the housing 2. The circuit side fixing portion 611 is configured by a through hole for a screw which is screwed into the screw hole 212 b of the circuit fixing portion 212 of the bottom wall 201 as shown in FIG. 5. The circuit board 61 in the fixed state is supported by the upper surface of the boss portion 212 a of the bottom wall 201 in parallel with the bottom wall 201.
When fixing the control circuit unit 6 to the main body 20, the ends of the two sides of the circuit board 61 are inserted (slided) between the back contact portion 213a and the front contact portion 213b of the circuit support portion 213. . For this reason, the circuit board 61 has a through hole 612 larger than the boss portion 214 a of the coil fixing portion 214.

The control circuit unit 6 and the first operation unit 3a are electrically connected via a first cable 66a, as shown in FIG. The first cable 66a has connectors 67a at both ends, and one connector 67a is detachably connected to the connector 68a of the circuit board 61, and the other connector 67a is detachably connected to the connector 68a of the first operation board 31a.
The control circuit unit 6 and the second operation unit 3b are electrically connected via a second cable 66b, as shown in FIG. The second cable 66b has connectors 67b at both ends, and one connector 67b is detachably connected to the connector 68b of the circuit board 61 and the other connector 67b is detachably connected to the connector 68b of the second operation board 31b.
The first cable 66 a and the second cable 66 b are disposed to pass between the flow path forming portion 51 and the fourth striking side wall 205 as shown in FIG. 9.

As shown in FIG. 7, the heat sink 65 has a plurality of heat dissipation plates 651. The heat dissipation plate 651 has a rectangular shape elongated in the lateral direction. The heat dissipation plate 651 extends in a direction orthogonal to the front and back direction, and is connected to the first partition wall 221 a on the opposite side.

(6) Flow Path The flow path 5 is configured such that outside air taken in from the intake port 42 is directed to the heat exhaust port 43 in the housing 2. A heating coil 11 is provided in the middle of the flow path 5. Thereby, the temperature rise of the heating coil 11 can be suppressed. In addition, a control circuit unit 6 is provided in the middle of the flow path 5. Thereby, the temperature rise of the control circuit unit 6 can be suppressed.
The flow path 5 is formed between the middle portion 201 c of the bottom wall 201 and the cover 25 and the top plate 28.
An area between the middle portion 201 c of the bottom wall 201 and the cover 25 and the top plate 28 which is not a flow path is referred to as a flow path outside area 59. A first cable 66 a and a second cable 66 b are disposed in the flow passage outer region 59 in the housing 2.

In the large housing portion 208 of the housing portion 2, the outside air taken in from the air inlet 42 is naturally directed to the heat exhaust port 43 by the blower 4. In this case, the outside air also flows to the area where the large housing portion 208 does not have the object to be cooled, and the cooling efficiency tends to deteriorate. The flow path forming unit 51 guides the drawn outside air toward the heating coil 11 and the control circuit unit 6 to be cooled.
As shown in FIG. 5, the flow passage forming portion 51 includes a first flow passage wall 52 provided along the opening edge of the intake port 42 and a second flow passage wall provided along the periphery of the heating coil 11. And 53. The flow path forming unit 51 has a hood cover 57 that covers the opposite side of the air inlet 42 in the blower 4 (the back side of the blower 4). The flow path forming portion 51 has a guide wall 54 for guiding the drawn outside air to the object to be cooled.

(6-1) First Channel Wall The first channel wall 52 is formed on the opposite side of the third side wall 204 of the intake port 42 in plan view, that is, on the fourth side wall 205 side of the intake port 42 . In other words, the first flow path wall 52 is formed between the intake port 42 and the fourth side wall 205. The first flow path wall 52 has an arc shape in plan view.
The first flow path wall 52 is formed to extend upward from the middle portion 201 c of the bottom wall 201. The upper end of the first flow path wall 52 substantially coincides with the upper end of the first partition wall 221a, as shown in FIG. Accordingly, leakage of the drawn outside air from between the first flow path wall 52 and the cover 25 or between the first flow path wall 52 and the top plate 28 to the flow path outer region 59 can be suppressed.
One end of the first flow path wall 52 is connected to the first partition wall 221a as shown in FIG. The other end of the first flow path wall 52 is connected to the second flow path wall 53.

(6-2) Second Channel Wall The second channel wall 53 is formed on the opposite side of the third side wall 204 of the heating coil 11 in plan view, that is, on the fourth side wall 205 side of the heating coil 11 . In other words, the second flow path wall 53 is formed between the heating coil 11 and the fourth side wall 205.
The second flow path wall 53 is provided on the periphery of the heating coil 11 in a plan view, and at a portion not facing the blower 41 (hood cover 57).
The second flow path wall 53 is formed to extend upward from the middle portion 201 c of the bottom wall 201.

The upper end of the second flow path wall 53 substantially coincides with the upper ends of the first partition wall 221a and the second partition wall 221b, as shown in FIG. The upper end of the second flow path wall 53 substantially coincides with the upper surface of the heating coil 11, as shown in FIG. Thus, it is possible to suppress the leakage of the drawn outside air from between the second flow passage wall 53 and the top plate 28.
One end of the second flow path wall 53 is connected to the other end of the first flow path wall 52, as shown in FIG. The other end of the second flow path wall 53 extends close to the circuit board 61 of the control circuit unit 6.
The second flow path wall 53 approaches the heating coil 11 as it moves away from the first flow path wall 52 toward the second side wall 203, and as it approaches the periphery of the heating coil 11, the second flow path wall 53 Stretch to the end. In other words, the second flow path wall 53 has a straight portion on the first flow path wall 52 side and an arc portion on the other end side in plan view.

The second flow path wall 53 is connected to the coil fixing portion 214. The second flow path wall 53 has a recess 531 in a portion connected to the coil fixing portion 214. As shown in FIG. 7, the overhanging portion 129 of the heating coil 11 is fitted in the recess 531.

(6-3) Food Cover An example of the food cover 57 will be described with reference to FIG.
The food cover 57 includes a flat plate portion 571 that covers the back side of the blower 4 and a fixing portion 573 for fixing the food cover 57 to the housing 2. The hood cover 57 has a guide wall 579 for guiding the outside air taken in from the air inlet 42 to the heat sink 65 side of the control circuit unit 6.

The flat plate portion 571 has a shape that fills the space between the first flow path wall 52 and the heating coil 11 in a plan view. The flat plate portion 571 is shaped so as not to overlap with the heat sink 65 of the control circuit portion 6 in plan view. Reinforcing ribs 571 a are provided on the surface of the flat plate portion 571 in a mesh shape.

The fixing portion 573 has a bottomed cylindrical portion 573a that protrudes in a bottomed cylindrical shape on the back side. The fixing portion 573 has a step 573c at the tip of the bottom portion 573b of the bottomed cylindrical portion 573a. The step 573 c fits in the recess of the holed recess 415 b of the arm 415 of the blower 4.
The bottom portion 573b is provided with a through hole 573d. A screw disposed in the bottomed cylindrical portion 573a is inserted through the through hole 573d. The screw passes through the holed recess 415 b (see FIG. 2) of the arm 415 of the blower 4 and is screwed into the screw hole 215 c of the hood fixing portion 215 of the housing 2.

The guide wall 579 extends between the heating coil 11 and the heat sink 65 toward the bottom wall 201, as shown in FIG. The guide wall 597 has an arc shape along the periphery of the heating coil 11 in plan view. Outside air taken in from the intake port 42 travels to the heat exhaust port 43 while expanding between the second flow path wall 53 and the guide wall 597. Thus, the outside air passes through substantially the entire area of the heating coil 11. Further, the outside air taken in from the air intake 42 is directed to the heat exhaust 43 while passing through the heat sink 65 from between the first partition wall 221 a and the guide wall 597.

(6-4) Guide Wall An example of the guide wall 54 will be described with reference to FIG.
The guide wall 54 is formed on the raised bottom portion 201 d of the bottom wall 201. The guide wall 54 is erected from the raised bottom portion 201d. The upper end of the guide wall 54 substantially coincides with the upper end of the fan 413 of the blower 4. Thus, the outside air taken in from the air intake 42 can be efficiently directed toward the heat exhaust 43.
The guide wall 54 has a first guide wall 541 extending tangentially to the periphery of the inlet 42 from the other end of the first flow path wall 52 in plan view.
The guide wall 54 has a second guide wall 543 extending in a parallel direction at a distance from the first guide wall 541 in plan view. The second guide wall 543 is formed on the opposite side to the second flow path wall 53 with respect to the first guide wall 541.
The guide wall 54 has a third guide wall 545 extending in the lateral direction (the direction in which the heat exhaust port 43 is present) at a distance from the second guide wall 543 in plan view. The third guide wall 545 is formed on the opposite side to the first guide wall 541 with respect to the second guide wall 543.
The heights in the vertical direction of the first guide wall 541, the second guide wall 543, and the third guide wall 545 are lower than the heights of the first flow path wall 52 and the second flow path wall 53.

The guide wall 54 is a peripheral edge of the intake port 42, and is a region where the first flow passage wall 52, the first guide wall 541, the second guide wall 543, the third guide wall 545, and the like are not formed. have. The fourth guide wall 547 has an arc shape along the periphery of the inlet 42 in plan view. The fourth guide wall 547 is for guiding the drawn outside air upward.
The height of the fourth guide wall 547 is lower than that of the first flow path wall 52, and the outside air sucked from the air intake 42 is directed to the heat sink 65 and the electronic component 62 through the upper side of the fourth guide wall 547.
The numbers from the first guide wall 541 to the fourth guide wall 547 are to distinguish them from other guide walls.

(7) Court Connection Unit An example of the cord connection unit 7 will be described with reference to FIG.
The cord connecting portion 7 has a connecting portion main body 71 made of an insulating material, and a connector 73 provided on the connecting portion main body 71. The connector 73 here is a magnet type.
The connecting portion main body 71 has a projecting portion 71 a projecting outward from the side wall, and the projecting portion 71 a is inserted from the front side into the attaching groove 235 of the cord attaching portion 231 of the third side wall 204 of the housing 2. Thereby, the cord connection portion 7 is supported by the support portion 237 and attached to the main body 20.

3. Positional Relationship An example of the positional relationship between the heating coil 11, the control circuit unit 6, and the blower 4 will be described with reference to FIGS.

(1) Plan View The positional relationship in plan view will be described with reference to FIG.
The heating coil 11 is disposed at substantially the center of the large housing portion 208, and at three points of two coil fixing portions 214 penetrating the circuit board 61 and a coil fixing portion 214 connected to the second flow path wall 55. It is fixed.
The control circuit unit 6 is disposed substantially in the left half in the lateral direction of the large accommodation unit 208. The left side here is the side where the third side wall 204 is located. A heat sink 65 is disposed between the heating coil 11 and the first partition wall 221 a and at a position close to the blower 4.
The blower 4 is disposed on the substantially right side in the lateral direction in the large housing portion 208. In other words, the blower 4 is disposed in an area where the control circuit unit 6 is not disposed.
Thus, the control circuit unit 6 and the blower 4 are disposed in a non-overlapping state, and the heating coil 11 is disposed so as to overlap the control circuit unit 6 and the blower 4. The heat sink 65 is disposed so as not to overlap the heating coil 11 and the blower 4.

(2) Side View An example of the positional relationship in the side view will be described with reference to FIG.
The heating coil 11 is disposed on the upper side of the large housing portion 208. The circuit board 61 is disposed on the lower side of the large housing portion 208. The blower 4 is provided on the raised bottom portion 201 d of the bottom wall 201, and is disposed substantially at the center in the vertical direction of the large housing portion 208. That is, the blower 4 is disposed between the heating coil 11 and the circuit board 61. As a result, the air sent out from the blower 4 spreads up and down in the large housing portion 208, and the outside air is sent to substantially the entire area of the heating coil 11 and the control circuit unit 6.

The upper surface of the raised bottom portion 201 d of the bottom wall 201 is above the upper surface of the circuit board 61 of the control circuit unit 6. Accordingly, it is possible to restrict the air sent from the blower 4 from entering between the circuit board 61 and the bottom wall 201.

4. Flow Path An example of the flow path 5 will be described with reference to FIG.
As described above, the flow path 5 is constituted by a space surrounded by the middle portion 201 c of the bottom wall 201, the cover 25, the top plate 28 and the flow path forming portion 51, and is connected to the intake port 42 and the heat exhaust port 43. The heating coil 11 to be cooled and the control circuit unit 6 face the flow path 5.
(1) Around Intake Port In the vicinity of the intake port 42, the outside air taken in by the blower 4 is spread by the hood cover 57 in the direction orthogonal to the rotation axis of the blower 4. Under the present circumstances, since the 1st flow-path wall 52 and the 4th guide wall 547 are formed in the periphery of the inlet 42, the quantity of the external air which approachs between the circuit board 61 and the bottom wall 201 can be controlled.
(2) Second channel wall Among the ambient air drawn in, the outside air traveling above the first guide wall 541 travels along the second channel wall 53 as shown by arrow A in the figure, and is heated. It goes to the heat exhaust port 43 through the coil 11 and the second partition wall 221 b side in the control circuit unit 6.

(3) First Guide Wall Of the ambient air taken in, the outside air directed to the first guide wall 541 travels along the first guide wall 541 as shown by arrow B in the figure, and the heating coil 11 and the control circuit Go through the middle part of the part 6 to the heat exhaust port 43.
(4) Second Guide Wall Among the ambient air taken in, the outside air directed to the second guide wall 543 (see FIG. 5) is the second guide wall 543 and the third guide wall 545 as shown by the arrow C in the figure. Between the heating coil 11 and the control circuit 6 toward the heat exhaust port 43.
(5) Fourth Guide Wall Of the ambient air taken in, the outside air traveling above the fourth guide wall 547 is heated along the guide wall 579 (see FIG. 7), as shown by arrow D in the figure. 11 and the second partition wall 221 b side in the control circuit 6 toward the heat exhaust port 43.
Among the drawn outside air, the outside air traveling above the fourth guide wall 547 and traveling between the guide wall 579 (see FIG. 7) and the first partition wall 221a is indicated by an arrow E in the drawing. Thus, it passes between the heat sinks 651 of the heat sink 65 of the control circuit unit 6 and goes to the heat exhaust port 43.

As mentioned above, although embodiment was described, it is not restricted to these embodiments, For example, the following modifications may be sufficient. In addition, the embodiment, the modification, and the modifications may be combined.
In addition, even if there is an example not described in the embodiment or the modification, or a design change in a range not departing from the gist, the present invention is included.

<Modification>
(1) Although the electromagnetic cooker A of embodiment is carrying out the rectangular shape in planar view, it may be another shape. Other shapes include triangles, circles, and ovals. In this case, the first operation unit 3a and the second operation unit 3b may be located at substantially opposing portions, and in the case of a triangle, if the operation units are provided on two adjacent sides and the heat removal port is provided on the other one. Good.
Here, the shape refers to the entire shape, and, for example, in the case of a rectangular shape, it also includes a shape in which a rectangular corner portion is rounded or a shape in which a rectangular corner portion is chamfered.
(2) The housing unit 2 of the embodiment includes the main body 20, the cover 25, and the top plate 28. However, the housing 2 only needs to be able to accommodate the heating coil 11 and the control circuit unit 6, etc. For example, the housing 2 may be composed of two members of the main body and the top plate, or composed of four or more members including these. It is also good.

(3) The heat exhaust port 43 of the embodiment is provided in the third side wall 204 where the first operation portion 3a and the second operation portion 3b are not provided, but in the third side wall 204 and the fourth side wall 205 It may be provided in a distributed manner. In addition, as long as exhaust heat is not felt by the user from the heat exhaust port, the first portion (the first side wall side of the first side wall or the bottom wall) and the second portion (the second side wall or the second wall) A heat exhaust may be provided on the side wall side).
(4) The heat exhaust port 43 of the embodiment has a plurality of rectangular small holes 43a long in the front and back direction in the longitudinal direction and the front and back direction (see (b) in FIG. 1). A plurality of long rectangular or square small holes or circular small holes may be provided, or small holes having different shapes may be combined. That is, the heat exhaust port 43 has a size that can not be inserted by a human finger, a finger or the like, and only needs to be able to discharge the air in the casing, and the configuration such as the shape and size is not particularly limited.

(5) The heating coil 11 of the embodiment has a disk shape as a whole, but may have another shape. Other shapes include a polygonal shape such as a triangular shape and a rectangular shape, an elliptical shape, and an oval shape.
(6) In the embodiment, a screwing method using screws is employed for fixing and attaching the cover 25, the first operation unit 3a, the second operation unit 3b, the heating unit 1, the control circuit unit 6, the blower 4 and the like. For example, a fastening method using a fastener such as a rivet or a fastener, or an engagement method using an engagement piece, an engagement protrusion, an engagement recess, or the like may be employed.
(7) The plate mounting portion 251 of the embodiment includes the inner abutting portion 251b, but the plate mounting portion may be configured by the outer abutting portion or the inner abutting portion. Further, the groove portion 251c between the outer abutment portion 251a and the inner abutment portion 251b may be or may not be present.

(8) The first operation unit 3a and the second operation unit 3b according to the embodiment are attached to the cover 25 of the housing unit 2. For example, the first operation unit and the second operation unit are main bodies of the housing unit It may be attached to the side.
In the embodiment, the two operation units 3 of the first operation unit 3a and the second operation unit 3b are provided, but for example, the third operation unit 3 may be provided on the fourth side wall 205 side. In this case, the heat exhaust port is preferably provided on the third side wall 204 side.
(9) In the embodiment, the blower 4 and the hood cover 57 are integrally fixed, but the blower and the hood cover may be separately fixed.
(10) Although the hood cover 57 is provided separately from the housing 2 in the embodiment, the cover constituting the housing 2 may be integrated with one corresponding to the food cover.

(11) Although the first flow path wall 52 and the like forming the flow path 5 of the embodiment are formed in the main body 20, for example, a dedicated flow path is formed by a separate member from the main body 20, and the flow path It may be disposed in the housing unit. In this case, a dedicated channel may be provided with a wall corresponding to the hood cover, or the hood cover may be used as it is without providing a wall corresponding to the hood cover.
(12) The heat exhaust port 43 and the intake port 42 are provided in the third side wall 204 and the bottom wall 201, respectively, but the heat exhaust port and the intake port may be provided in the same side wall, for example.
The heat exhaust port is provided in the third side wall 204, but may be provided, for example, in the bottom wall, or may be provided across the bottom wall and the side wall. The intake port is provided in the bottom wall 201, but may be provided, for example, in the side wall, or may be provided across the bottom wall and the side wall.

(13) Although the circuit support part 213 of embodiment was provided in the 2nd division wall 221b, it may be provided in the 1st division wall 221a, for example. Also, although the back contact portion 213a and the front contact portion 213b are in contact on the front and back of the same portion of the circuit board 61, the front contact portion and the rear contact portion are separated in the vertical direction and the horizontal direction. It may be in contact with the substrate. Further, the numbers of the front contact portion and the back contact portion may be the same or different.

(14) Although the guide wall 54 in the embodiment is integrally provided on the bottom wall 201, for example, a flat plate portion 571 of the hood cover 57 may be provided with a wall corresponding to the guide wall, which is different from the hood cover 57 The guide wall may be configured separately.
(15) The heat sink 651 of the heat sink 65 of the embodiment extends in the direction orthogonal to the front and back direction and is connected on the opposite side to the first partition wall 221a, but for example, it is connected by the first partition wall 221a in the heat sink It may be done. Even in this case, the flow of the outside air from the intake port to the heat exhaust port is not hindered.

(16) The blower 4 of the embodiment is disposed on the first partition wall 221a side as shown in FIG. 9 in plan view, but in the case where the heating coil and the blower do not overlap in the front and back direction in side view, The blower may be disposed at the center in the longitudinal direction in plan view.
In this case, the flow path forming portion extends along the peripheral edge of the heating coil from both ends of the first flow path wall which is the peripheral edge of the intake port and is formed between the intake port and the fourth side wall And two second flow path walls. Depending on the arrangement of the heat sink, one of the second flow path walls may extend to the heat sink side.

(17) In the embodiment, one heating coil 11 and one blower 4 are provided, but a plurality of heating coils and blowers may be provided. Further, even if there is only one fan, a plurality of air inlets may be provided.

A Induction cooker (heating cooker)
2 Case (case)
3a 1st operation part 3b 2nd operation part 11 heating coil 43 heat exhaust port

Claims

A heating coil for heating the object to be heated by electromagnetic induction;
A housing for housing the heating coil;
A first operation unit provided at a first portion of the housing;
A second operation unit provided at a second portion facing the first portion of the housing;
And a heat exhaust port provided in the housing and discharging heat from the inside to the outside;
The heat exhauster is provided between the first portion and the second portion.
An intake port provided in the housing and for drawing outside air into the interior;
A fan disposed in the housing and for taking in air from the air inlet;
The heating and cooking apparatus according to claim 1, wherein the air intake port is provided on the opposite side of the heat exhaust port with respect to the center of the heating coil.
Outside air taken in from the air inlet by the fan forms a flow path toward the heat exhaust port in the housing,
The heating cooker according to claim 2, wherein the heating coil is provided in the middle of the flow path.
The heating according to claim 3, wherein the flow passage has a first flow passage wall provided along an opening edge of the air inlet and a second flow passage wall provided along a periphery of the heating coil. Cooking device.
The heating cooker according to claim 4, wherein the housing integrally includes the first flow path wall and the second flow path wall.
A control circuit unit for controlling the heating coil based on the operation of the first operation unit and the second operation unit is provided in the housing,
The heating cooker according to any one of claims 3 to 5, wherein at least a part of the control circuit unit faces the flow path.
A first cable electrically connecting the first operation unit and the control circuit unit, and a second cable electrically connecting the second operation unit and the control circuit unit are separated from the flow path. The heating cooker according to claim 6, wherein the heating cooker is disposed in the housing in a closed state.