JP2005209440A - Electric heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric heating cooker capable of improving measuring accuracy of temperature of a heated object. <P>SOLUTION: The electric heating cooker comprises a top plate 5 on which the object to be heated 36 is put, a frame 6 arranged at an outer periphery of the top plate 5, a main body case, on a top face of which the top plate 5 and the frame 6 are arranged, a heating body 20 heating the object to be heated 36 through an induction coil 22, an electric resistor or the like, a control body 34 controlling an output or the like of the heating body 20, a fan blower 35 cooling heat-generating parts housed in the main body case, and a temperature measuring body 27 having a temperature detection part 38 measuring the temperature of the object to be heated 36. A front side upper face part of the frame body is made to protrude, and the temperature measuring body 27 is arranged therein, and a projected part 26 having a slanted face 28 facing the side on the top plate 5 where the object to be heated 36 is put is formed. A projected wall projected from the slanted face 28 is formed on the slanted face 28. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an improvement in a temperature detection mechanism of an electric heating cooker, particularly an electric heating cooker.

  Conventionally, a heating object placed on the top surface of the top plate is heated by a heating body such as an induction heating coil or an electric resistance body, and the left heating portion on the left side of the top plate, the right heating portion on the right side, and the rear center There is known an electric heating cooker having three heating parts of a central heating part. The electric heating cooker detects the progress of cooking by detecting the temperature of the cooking object such as food and the temperature of the cooking pot such as a cooking pan with a temperature sensor provided on the lower surface of the top plate, and performs heating control. When suitable cooking is performed or the temperature of the object to be cooked or the cooker suddenly rises, safety measures such as turning off the heating operation have been taken to prevent danger.

  As a temperature sensor of such an electric heating cooker, an application of a radiation temperature method using an infrared sensor with very good response has been proposed. The electric heating cooker places an object to be heated on the top surface of the top plate that covers the top surface opening of the box-shaped main body case, and is provided with a light emitting element such as an LED or a laser, a light receiving element, and an infrared sensor below the top panel. The light is projected from the light emitting element onto the object to be heated, and the reflected light reflected from the object to be heated is received by the light receiving element, and the object is heated from the emissivity of the object to be heated converted from the received output and the amount of light received by the infrared sensor. It was comprised so that the exact temperature of a to-be-heated object might be detected by converting the temperature of an object (refer patent document 1).

Japanese Patent Laid-Open No. 11-225881

  However, if the object to be heated placed on the top surface of the top plate is heated from below the top plate, the top plate is also heated. For example, in an electric heating cooker that heats the object to be heated by heating the object to be heated to heat the object to be heated, as the order of temperature conduction, the heating body first generates heat to heat the tabletop, and the temperature of the tabletop Will be conducted to the object to be heated. In this method, the object to be heated placed on the top surface of the top plate is heated from the bottom side of the top plate, so that the temperature of the top plate tends to be higher than that of the object to be heated. Because it is exposed, the temperature may change due to the influence of wind and outside air.

  In addition, in an electric heating cooker that heats an object to be heated by induction heating, a high-frequency magnetic field is generated by a heating body, and an eddy current is generated in a cooking container such as a pot that is the object to be heated to heat the object to be heated. In this method, since the object to be heated is heated without being affected by the high frequency magnetic field, the object to be heated tends to have a higher temperature than the top panel. In this way, the electric heating cooker that measures the temperature of the object to be heated placed under the top plate from the top plate is in contact with the top plate in the method of detecting the temperature by contacting the top plate with a temperature sensor or the like. The detected temperature sensor detects the temperature of the top board. However, the temperatures of the top plate and the object to be heated do not always match as described above, and the accuracy of the detected temperature is lacking due to the temperature difference between the top plate and the object to be heated.

  In addition, as described in Patent Document 1, in the method of detecting the temperature of an object to be heated by an infrared sensor, the top plate is made of glass that is not affected by a high-frequency magnetic field. Since it is easy to absorb, it is difficult to transmit, and as the thickness of the glass increases, temperature detection by infrared rays through the glass also lacks accuracy. In addition, some glass materials are difficult to absorb infrared rays, but there are also problems such as having sufficient strength due to the nature of the top plate and cost. In this way, the electric cooking device for measuring the temperature of the heated object placed on the upper surface of the top plate from under the top plate has the top plate interposed between the heated object and the infrared sensor. When the temperature of the object to be heated placed on the top surface of the top plate is detected by the infrared sensor provided under the top plate, there is a problem that the accurate temperature of the object to be heated cannot be detected due to the influence of the top plate.

  This invention is made | formed in view of the said subject, and it aims at providing the electric heating cooker which can improve the measurement precision of the temperature of to-be-heated material.

  In order to achieve the object, an electric heating cooker according to the present invention includes a top plate on which an object to be heated is placed, a frame body provided on an outer periphery of the top plate, the top plate and the frame body. A main body case disposed on the top surface, a heating body that heats the object to be heated by an induction heating coil, an electric resistor, etc., a control body that controls the output of the heating body, and the like are provided inside the main body case. Provided with a protrusion that projects a front upper surface portion of the frame body, and includes a blower that cools the heat-generating component and a temperature detector that includes a temperature detector that measures the temperature of the object to be heated. A warm body is arranged in the protrusion.

  According to the electric cooking device of the present invention, since the heat generated by the object to be heated can be detected by the temperature measuring element without using the top plate, the temperature of the object to be heated can be accurately measured.

Embodiment 1 FIG.
Hereinafter, the present invention will be described in detail based on an embodiment of the present invention. FIG. 1 is a perspective view of a sink 90 provided with the electric heating cooker 1 in the present embodiment, and FIG. 2 is a perspective view of the electric heating cooker 1 in the present embodiment. In FIG. 1, a sink 92 is provided in the sink 90, and a faucet 94 attached to the tip of a water pipe (not shown) is provided in the upper part of the sink 92, and a knife (not shown) is provided beside the sink 92. A cutting board (not shown) serving as a cradle for chopping an object to be cooked such as vegetables or meat into an appropriate size can be placed.

  Next to the sink 92, the electric heating cooker 1 is incorporated in the sink 90 at a predetermined interval. The electric heating cooker 1 has a box-shaped main body case 2 (see FIG. 2) whose top surface is opened. And a top plate 5 covering the top opening of the main body case 2 and a frame 6 made of a metal plate provided on the outer periphery of the top plate 5. The top plate 5 is made of a nonmagnetic material such as a ceramic plate or heat-resistant glass, and is fixed to the upper surface opening of the frame 6 with an adhesive or the like.

  And on the upper surface of the top plate 5, as a mounting portion for displaying the mounting position of a heated object 36 such as a cooking pan or a frying pan made of a magnetic material (the cooking pan is shown in FIG. 1), a central portion in the rear part is displayed. A circle line 7A, a circle line 7B (shown in FIG. 2) on the front left side, and a circle line 7C on the front right side are provided. The diameter of each circle line 7A, 7B, 7C is substantially equal to or slightly larger than the outer diameter of the heating body 20 described later, and each circle line 7A, 7B is located near each circle line 7A, 7B, 7C. , 7C, output display portions 8A, 8B, and 8C for displaying the heating power for heating the object 36 to be heated are provided.

  Further, as shown in FIG. 2, an intake port 18 for taking outside air into the main body case 2 is provided in the upper front portion of the main body case 2, and at the rear part of the main body case 2 (on both sides of the rear part of the frame body 6). An exhaust port 19 is provided for discharging air taken into the main body case 2. The intake port 18 includes an intake filter (not shown) for preventing entry of foreign matter from the intake port 18 into the main body case 2 while constituting a part of the main body case 2.

  Further, a griller 9 is provided on the left side of the front surface of the main body case 2, and a handle 9 </ b> A is provided on the front surface of the griller 9 for taking the gliller 9 in and out of the main body case 2. The front right side of the main body case 2 (the right side of the griller 9) can be freely moved to adjust the heating output of each heating body 20 provided in the main body case 2 corresponding to each circle line 7A, 7B, 7C. An operation panel 11 having a timer and the like for adjusting the heating output of the knob 10 and the griller 9, turning on / off the power switch of the electric heating cooker 1, and setting and measuring the cooking time is provided. An operation unit 12 is provided. Further, on the front side of the frame body 6, a plurality of operation buttons 16 </ b> A for adjusting the heating output of the heating body 20 in conjunction with the operation section 12, and a display section 16 </ b> B for displaying a set temperature, a set time, and the like. There is provided a top panel operation unit 16 having

  As shown in FIG. 3, the induction heating coil 22 wound in a spiral shape on the coil base 22 </ b> A on the lower surface side of the top plate 5 inside the main body case 2 is provided on the lower surface side of the circle lines 7 </ b> A, 7 </ b> B, 7 </ b> C. A heating body 20 that is heated by a resistor (not shown) or the like is provided. A temperature sensor 23 is provided at the center of the induction heating coil 22 to measure the bottom surface temperature of the object to be heated 36 placed on each circle line in contact with the lower surface of the top plate 5. In addition, in FIG. 3, it demonstrates using the vertical side view of the circle line 7B of the electric heating cooking appliance 1. FIG.

  Inside the main body case 2 is provided a control body 34 provided with an output control circuit for the heating body 20 including a power supply unit, various electronic elements, a microcomputer, a reservation timer control circuit, and the like. The control body 34 is connected to the heating body 20, the temperature sensor 23, and the like, and the control body 34 is configured to stop heating of the heating body 20 or reduce the output of the heating body 20. Incidentally, an induction heating coil and temperature sensor similar to the induction heating coil 22 are provided on the lower surface side of the top plate 5 corresponding to the circle line 7C, and a heating body comprising an electric resistor on the lower surface side of the top plate 5 corresponding to the circle line 7A. Although a temperature sensor and the like are provided, they are not shown.

  Moreover, since the heating body 20 and the control body 34 have heat by operation | movement of the electric heating cooking appliance 1, while being provided with a radiation fin (not shown), in order to cool the heated main body case 2 inside with the motor M A blower 35 to be driven is provided in the main body case 2. When the motor M is driven and the blower 35 is operated, the outside air (indicated by the white arrow in FIG. 3) introduced into the main body case 2 from the air inlet 18 is heated by the heating body 20 or the control body 34, and the like. After the top plate 5 and other heated parts are air-cooled (arrows in FIG. 3), they are discharged from the exhaust port 19 provided at the rear of the main body to the outside of the main body.

  On the other hand, the electric cooking device 1 according to the present embodiment includes a temperature measuring body 27 that measures the temperature of the object to be heated 36 on the frame 6 that is the top surface of the main body case 2. The temperature measuring body 27 is composed of an infrared sensor, and is provided in two protrusions 26 that protrude from the upper surface of the front side of the frame body 6. The temperature measuring element 27 has a temperature detection unit 38, and the temperature detection unit 38 can measure the temperature without touching the object to be heated 36 by detecting infrared rays generated from the object to be heated 36. It is configured as follows. That is, the temperature measuring body 27 is provided in a protrusion 26 that projects the top panel operating section 16 located on the front side of the frame body 6 by a predetermined dimension, and as shown in FIG. 1 and FIG. They are respectively provided on the top panel operating section 16 closest to the front left circle line 7B and the front right circle line 7C on which the object to be heated 36 is placed.

  As shown in FIG. 3, both protrusions 26 are provided with an inclined surface 28 that protrudes by a predetermined dimension from the top panel operation unit 16 as being separated from the circle lines 7 </ b> B and 7 </ b> C, and as being further away from the upper end of the inclined surface 28. The top plate operating part 16 is formed to project into a mountain shape provided with an opposite inclined surface 30 that gently inclines to a planar position. The inclined surface 28 is directed downward from the center of the entire height of the object to be heated 36 placed on the circle lines 7B and 7C, and is directed upward by a predetermined dimension from the lower end of the object to be heated 36. Specifically, assuming that the height of the object to be heated 36 is divided into 10 parts, the inclined surface 28 is oriented between 2 and 5 parts from the lower part to the upper part of the object to be heated 36.

  As shown in FIG. 4, the inclined surface 28 is provided with a through hole 28 </ b> A, and a holding portion 29 is provided around the through hole 28 </ b> A so as to extend inside the protrusion 26 and hold the temperature measuring body 27. It has been. The temperature measuring body 27 is inserted into the holding portion 29 from the inside of the protruding portion 26 and is inserted to the inclined surface 28 to be substantially flush. The temperature measuring element 27 is exposed in the direction of the object to be heated 36 from the through hole 28A, and when the height of the object to be heated 36 that is the same as the inclined surface 28 is divided into 10 parts, the lower part of the object to be heated 36 is moved upward. It is bonded and fixed with an adhesive (not shown) from the inside of the protrusion 26 in a state of being oriented between 2 to 5 divisions. That is, by exposing the temperature detector 38 of the temperature measuring body 27 from the through hole 28 </ b> A of the inclined surface 28, infrared rays generated from the heated object 36 can be directly detected. The protrusion 26 has an inclined surface 28 on the side of the top plate 5 on the side opposite to the user where the object to be heated 36 is placed, and the temperature measuring body 27 can measure the temperature of the object to be heated 36 from the inclined surface 28. Is arranged.

  In the present embodiment, the temperature measuring body 27 is formed on the frame 6 on the outer periphery of the top plate 5 in the vicinity of the object to be heated 36 as described above, and is provided in front of the center in the front-rear direction of the top surface of the electric heating cooker 1. Therefore, for example, when the temperature measuring body 27 is provided at the rear part of the frame 6 on the outer periphery of the top plate 5, an empty cooking pan, a plate, or the like is placed between the temperature detection unit 38 and the object to be heated 36. Inconveniences such as that the temperature of 36 becomes impossible to measure can be avoided. Thereby, the temperature of the to-be-heated material 36 can be measured reliably. In particular, since the temperature detection unit 38 of the temperature measuring body 27 does not face the user side, the temperature of the user is measured when the object to be heated 36 is not placed on the top plate 5. Can also be prevented.

  On the other hand, as shown in FIG. 3, notification means 32 is provided on the opposite inclined surface 30 formed on the opposite side of the inclined surface 28 of the protrusion 26. The notification means 32 is provided corresponding to the front part of each of the circle lines 7B and 7C, a display means for notifying the abnormality of the electric heating cooker 1 with characters or pictures, and a sound generation means for generating a notification sound. It is composed of. The display means is composed of a plurality of 7-segment LEDs and liquid crystal displays that can display characters, pictures, etc., and the sound generating means is a buzzer or speaker that generates sound, a constant sound or a whistle sound, etc. It is configured. The temperature of the object to be heated 36 detected by the temperature measuring element 27 (temperature detection unit 38) is displayed on a plurality of 7-segment LEDs, a liquid crystal display, or the like as the notification means 32.

  The notification means 32 is connected to the control body 34, and when an abnormality such as an abnormal temperature rise of the object to be heated 36 or a surface contamination of the temperature detecting portion 38 of the temperature measuring body 27 occurs, the abnormality content is indicated by a character or a picture. Announce with voice and sound at the same time. Thereby, the user can grasp | ascertain rapidly the abnormal content of the electric heating cooking appliance 1. FIG. Further, since the protrusions 26 are provided at the front part of the frame 6 corresponding to the respective objects to be heated 36, it is possible to grasp at a glance which object to be heated 36 has an abnormality and display means. Since the abnormality can be grasped by the sound notification from the sound generating means without visually recognizing, the abnormality of the electric heating cooker 1 can be grasped more quickly.

  In the present embodiment, the notification means 32 is based on the measurement result of the temperature measuring element 27 such as when the temperature detected by the temperature measuring element 27 is not increased or abnormally small even though the heating element 20 is operating. It is configured to notify the temperature measuring element failure or the outer surface contamination of the temperature measuring element by display or sound, and by providing such a notification means 32, the heating element 20 or the temperature measuring element 27 is broken or This helps the user accurately grasp abnormalities related to heating such as cleaning of the outer surface of the temperature measuring element 27, and can give the user a great sense of security. Further, since the influence of the outer surface contamination of the temperature measuring element can be quickly removed, the temperature of the object to be measured can be accurately measured without being affected by the outer surface contamination of the temperature measuring element.

  Further, since the temperature measuring element 27 is provided so as to protrude from the top surface of the top plate 5, compared with the conventional case where the heated object 36 on the top surface is measured from the bottom side of the top plate through the top plate. It becomes possible to directly measure the outer surface of the heated object 36. Thereby, the temperature of the article to be heated 36 can be measured more accurately. Furthermore, since dirt on the outer surface of the temperature detection unit 38 of the temperature measuring body 27 is displayed or sounded, for example, the outer surface of the temperature detection unit 38 of the temperature measuring body 27 is covered with moisture caused by spilling during cooking. It is possible to prevent inconveniences such as end-of-life and more accurately measure the temperature of the object 36 to be heated.

  As described above, the temperature measuring body 27 is provided in the protrusion 26 corresponding to the object to be heated 36 and the notification means 32 is provided in the vicinity of the temperature measurement body 27. It is convenient that the temperature of the object to be heated 36 is measured and displayed on the display 27 and the temperature of the object to be heated 36 is not mistaken. Moreover, since the notification means 32 is provided in the vicinity of the temperature measuring body 27, the cleaning location is easy to understand and convenient. As a result, when the surface of the temperature detection unit 38 of the temperature measuring body 27 is soiled with boiled juice, water droplets, dust, or the like, and the notification unit 32 notifies the abnormality, the temperature detection unit 38 of the temperature measurement unit 27 in the vicinity of the notification unit 32. Abnormalities can be easily avoided simply by cleaning. Although the notification means 32 is provided with display means and sound generation means, the notification means 32 may be either display means or sound generation means. In this case, since either one can be notified of an abnormality, the number of parts can be reduced and the cost can be reduced.

  Further, with the temperature measuring body 27 fixed to the inclined surface 28 of the protrusion 26, the temperature measuring body 27 is directed downward from the center of the height of the object to be heated 36, and from the lower part of the object to be heated 36. Since the temperature measuring body 27 is directed above the predetermined dimension, the temperature measuring element 27 can directly detect the temperature above the predetermined dimension from the lower part of the object to be heated 36 (dotted line arrow in FIG. 3). That is, since the temperature measuring body 27 can measure the temperature below the center of the height of the object to be heated 36 and above the lower part of the object to be heated 36 by a predetermined dimension, Even when a small obstacle such as a chopstick or a spoon is placed between the objects to be heated 36, the temperature measuring element 27 can measure the temperature of the object to be heated 36 from above the obstacles. Thereby, it is prevented that the temperature detection part 38 of the temperature measuring body 27 and the to-be-heated object 36 are interrupted | blocked, and the temperature of the to-be-heated object 36 can be measured favorably. In addition, in order to respond to a wider cooking utensil such as a frying pan having a low height or a pan having a different height as the object to be heated 36, the height of the temperature measuring body 27 is set as the height of the object to be heated 36. , The inclined surface 28 is directed to a height of 2 to 5 divisions from the lower part to the upper direction in the height of an object to be heated 36 such as a general pan, particularly to a height of 2 to 3 divisions. It is good to have. Since the cooked food exists at the bottom of the cooker, it is more accurate to detect the temperature near the bottom of the cooker, and it is more susceptible to obstacles if it is lower than this. This is because it becomes difficult to cope with a relatively low cooker such as a frying pan.

  In particular, since the temperature measuring element 27 is an infrared sensor, a configuration for detecting the temperature by directly contacting the object to be heated 36 is not required, and infrared light generated from the object to be heated 36 is detected and the object to be heated 36 is detected. The temperature can be measured without touching. Thereby, since the number of parts can be reduced, the product cost can be suppressed, and the assembly work can be simplified by reducing the number of parts, and the cleaning work can be easily performed. And in this embodiment, since the infrared rays which the to-be-heated material 36 emits can be detected by the temperature measuring body 27 without going through the top plate, the temperature can be measured very accurately while suppressing the cost.

  In the present embodiment, the protrusion 26 is formed of a metal plate different from that of the frame body 6. Then, the protrusion 26 is adhered and fixed to a predetermined position of the top panel operation unit 16 from the inside of the protrusion 26 with an adhesive 26A. That is, the temperature measuring body 27 is provided on the top panel operation unit 16 that is on the front side of the center in the front-rear direction of the top surface of the electric heating cooker 1 and is formed so as to protrude from the frame body 6 adjacent to the object to be heated 36. Yes. For this reason, even if the object to be heated has been placed on the top panel operating unit 16 located on the front side of the top panel 5 of the electric heating cooker 1, the heated object to be heated 36 hits the protrusion 26. Since the protrusion 26 is made of a metal plate, it does not deform even when a certain amount of heat is applied, thereby preventing the heated object 36 from directly touching the top panel operation unit 16. be able to. Accordingly, it is possible to reliably prevent inconveniences such as deformation of the top panel operation unit 16 (the operation buttons 16A and the display unit 16B) mainly formed of resin or the like due to the heat of the object to be heated 36. Is. The protrusion 26 may be formed integrally with the frame body 6 by protruding the frame body 6 made of metal. In this case, it is not necessary to attach and fix the protrusion 26, so that the number of man-hours for attaching the protrusion 26 can be reduced.

  Further, since the protrusion 26 has the inclined surface 28, for example, when the object to be heated 36 is picked up from the top plate 5, even if it collides with the protrusion 26, the impact is alleviated and the object to be heated is heated. The deformation of the object 36 and the spillage of the cooked food inside are prevented. In addition, when the temperature detection unit 38 is contaminated, the user can easily recognize the contamination and can be easily cleaned. In particular, in general pans and frying pans, the bottom corners are formed in an R shape, but the impact caused by a collision is further reduced by forming the height of the protrusion 26 below this R shape. It becomes possible.

  Furthermore, the inclined surface 28 of the protrusion 26 in the present embodiment is provided with a protruding wall 31 for preventing the temperature measuring body 27 including the temperature detector 38 from being damaged by an external force. As shown in FIG. 5, the protruding wall 31 extends at a predetermined width from the lower end to the upper end of the inclined surface 28 and is provided on both sides of the temperature measuring body 27. The protruding wall 31 has the inclined surface 28 and the protruding wall 31 integrally formed by protruding the inclined surface 28 by a predetermined dimension.

  That is, protruding walls 31 protruding from the inclined surface 28 by a predetermined dimension are provided on both sides of the temperature measuring body 27 exposed on the inclined surface 28 as shown in FIGS. In this case, it is possible to disperse the impact applied to the case in which the protrusion 26 is not provided with the inclined surface 28 and the protrusion 26 protrudes from the top panel operation section 16 at a substantially right angle. As a result, even when the heated object 36 or a cooking utensil such as a cooking pot or a plate hits the inclined surface 28, the cooking utensil hits the inclined protruding wall 31 and hits the inclined surface 28. The impact can be dispersed and avoided. Therefore, since the temperature detection unit 38 of the temperature measuring body 27 is not directly subjected to the impact of the object to be heated 36 or the cooking utensil such as the cooking pot or the dish, the temperature measuring body 27 is prevented from being damaged, Can be protected. Further, since the temperature measuring body 27 is provided so as to be exposed on the inclined surface 28, even if the cooked material splashes and jumps to the detection surface of the temperature measuring body 27, it is difficult for the dirt to flow down due to the inclination.

Embodiment 2. FIG.
The electric heating cooker 1 in this embodiment has substantially the same configuration as each of the above-described embodiments. Hereinafter, different parts will be described. The same parts as those in the above-described embodiments are denoted by the same reference numerals, and description thereof is omitted. As shown in FIG. 7, the electric heating cooker 1 according to another embodiment of the present invention is a so-called stationary type electric heating that is used by being placed on the sink 90 or the like instead of being incorporated in the sink 90 as described above. In the cooking device 1, an intake port 58 for taking outside air into the inside of the main body case 2 similar to the intake port 18 is provided on the side surface of the main body case 2.

  In addition, on the left and right circle lines (not shown in FIG. 7), heated objects 36 as cooking pots are placed, respectively, and the same projection 26 is provided on the frame 6 on the outer periphery of the top plate 5 as described above. It has been. The protrusion 26 is provided on the front surface side of the frame body 6 and is provided between both the objects to be heated 36, and a temperature measuring body 27 similar to the above is provided in the protrusion 26. A plurality of temperature measuring bodies 27 (two in this embodiment) are provided in the protrusion 26, and one temperature measuring body 27 is arranged in the direction of the object to be heated 36 placed on the left circle line. The temperature measuring body 27 is directed toward the object to be heated 36 placed on the right circle line.

  Both of the temperature measuring bodies 27 are directed downward from the center of the height of the object to be heated 36 placed on the circle line as described above and above the lower part of the object to be heated 36 by a predetermined dimension. That is, the protrusion 26 provided with the temperature measuring body 27 that can detect the temperature of the object to be heated 36 placed on the left and right circle lines on the single protrusion 26 provided between the objects to be heated 36. Is provided. Both the temperature measuring bodies 27 are configured to measure the temperatures of both the objects to be heated 36 as indicated by dotted arrows.

  Notification means 32 is provided on the inclined surface 30 opposite to the circle line of the protrusion 26, and this notification means 32, as described in the first embodiment, detects an abnormality in the electric heating cooker 1. It comprises display means for notifying with letters and pictures and sound generating means for generating a notification sound. The display means is composed of a liquid crystal display capable of displaying characters, pictures, etc., and the sound generation means is composed of a buzzer, a speaker, etc. for generating sounds such as voice, constant sound or whistle. The notification means 32 can display characters for prompting cleaning when the temperature measuring element 27 is contaminated.

  Display means such as a plurality of 7-segment LEDs and liquid crystal displays are provided on both sides of the protrusion 26 in correspondence with the heated objects 36 placed on the circle line. In the present embodiment, the display means is configured to display the temperature of the object to be heated 36 detected by the temperature measuring body 27 or the cooking time by the timer input by the operation unit 12.

  As described above, since one protrusion 26 provided with the temperature measuring body 27 is provided on the front surface side of the frame 6 on the outer periphery of the top plate 5, the protrusion 26 is provided on both sides of the protrusion 26. The temperature of the object to be heated 36 placed on the circle line can be detected. In this case, since the temperature measuring element 27 for measuring the temperature of the plurality of objects to be heated 36 is housed in one protrusion 26 provided in the middle of both circle lines, the object to be heated 36 is the temperature measuring element. 27 is placed on the circle line of the oblique rear part.

  Thereby, when mounting or taking out the to-be-heated material 36 on a circle line from the front side of the electric heating cooker 1, the protrusion 26 does not get in the way and is convenient. Therefore, when the protrusions 26 are provided opposite to each other on the circle line as described above, the probability that the object to be heated 36 hits the protrusions 26 can be reduced when the object to be heated 36 is placed or taken out. Therefore, it is possible to further reduce the possibility that the temperature measuring body 27 housed in the protrusion 26 is damaged.

  Even if the object to be heated 36 or a cooking utensil such as a cooking pan or a dish hits the projection 26, the cooking utensil hits the slanted projection wall 31 first as well as the above, so In addition to being able to avoid it, it is possible to disperse impacts that have been hit. Accordingly, the temperature detector 27 of the temperature measuring body 27 is not directly subjected to the impact of the object to be heated 36 or the cooking utensil such as the cooking pan or the dish, so that the temperature measuring body 27 is damaged. Can be prevented and protected. Further, since only one protrusion 26 is provided on the top plate 5, the number of the protrusions 26 is small, and the assembling workability can be improved.

  In this embodiment, a plurality of temperature measuring bodies 27 are provided in one protruding portion 26. However, only one temperature measuring body 27 is provided in one protruding portion 26, and the temperature measuring body 27 is provided. You may comprise so that direction may be changed to the direction of the some to-be-heated object 36 for every fixed time using a motor. Even in such a configuration, a plurality of objects to be heated 36 can be measured by one temperature measuring element 27, and a relatively expensive temperature measuring element 27 can be formed by only one, Cost can be reduced.

Embodiment 3 FIG.
The electric heating cooker 1 in this embodiment has substantially the same configuration as each of the above-described embodiments. Hereinafter, different parts will be described. The same parts as those in the above-described embodiments are denoted by the same reference numerals, and description thereof is omitted. As shown in FIG. 8, the temperature measuring body 27 includes an upper temperature measuring body 27 </ b> A that measures the upper side of the object to be heated 36, and a lower temperature measuring body 27 </ b> B that measures the lower side of the object to be heated 36.

  The temperature measuring element 27 is configured so that the upper side and the lower side of the object to be heated 36 can be measured simultaneously by the upper temperature measuring element 27A and the lower temperature measuring element 27B. When the height of the object to be heated 36 such as a general pot is divided into 10 parts, the lower temperature measuring element 27B is directed to the upper part from the lower part of the object to be heated 36 in the range of 2 to 5 and the upper temperature measuring part 27B. When the height of the object to be heated 36 such as a general pot is divided into 10 parts, the body 27A is directed from the lower part to the upper part of the object to be heated in the range of 6 to 8 parts. In other words, the upper temperature measuring body 27A can simultaneously measure the upper side of the object to be heated 36 and the lower temperature measuring body 27B can simultaneously measure the lower side of the object to be heated 36. In addition, the temperature of the lower heated object 36 in contact with the heated object to be cooked tends to be lower than the temperature of the upper heated object 36 in contact with the object to be cooked. That is, if the temperature of the heated object 36 is measured by the lower temperature measuring body 27B that measures the temperature on the lower side regardless of whether the amount of the cooked object stored in the heated object 36 is large or small, The temperature of the article to be heated 36 can be accurately measured.

  When cooking food in the object to be heated 36, such as tempura, is raised, the tempura oil evaporates by continuing heating, and the upper part of the object to be heated 36 is abnormal when the oil in the inside decreases. A case in which the oil vaporized is ignited due to a fire or the like has been reported, but in this embodiment, the temperature measuring element 27 is composed of the upper temperature measuring element 27A and the lower temperature measuring element 27B. Since the upper side and the lower side can be measured at the same time, even in such a case, an abnormally high temperature can be detected before ignition occurs, heating can be stopped, and the safety of the electric heating cooker 1 can be further improved.

  In this way, even when the object to be heated 36 or a cooking utensil such as a cooking pot or a dish hits the projection 26 provided with the temperature measuring element 27 having the upper temperature measuring element 27A and the lower temperature measuring element 27B, As described above, these cooking utensils hit the inclined surface 28 and the protruding wall 31 obliquely and hit the inclined protruding wall 31 first, so that the impact hit can be avoided and the protruding portion 26 is not provided with the inclined surface 28. It is possible to disperse the impact hit against the case where the top panel operating unit 16 protrudes at a right angle. Accordingly, since the temperature detection unit 38 of the temperature measuring body 27 is not directly subjected to the impact of the object to be heated 36 or the cooking utensil such as the cooking pan or the dish, the inconvenience such as the temperature measuring body 27 being damaged is prevented well. And can be protected. In addition, it goes without saying that the same effect as described in the present embodiment can be obtained by providing the temperature measuring body 27 including the upper temperature measuring body 27A and the lower temperature measuring body 27B in each of the embodiments. .

  In this embodiment, a plurality of temperature measuring bodies 27 are provided in one protruding portion 26. However, only one temperature measuring body 27 is provided in one protruding portion 26, and the temperature measuring body 27 is provided. May be configured to change the direction of the object to be heated 36 in the vertical direction at regular intervals using a motor or the like. Even with such a configuration, the temperature at the upper and lower positions of the object to be heated 36 can be measured by one temperature measuring element 27, and a relatively expensive temperature measuring element 27 can be formed by only one. The product cost can be reduced.

It is a perspective view of the sink provided with the electric heating cooker which concerns on one Embodiment of this invention. It is a perspective view of the electric heating cooking appliance concerning one embodiment of the present invention. It is a vertical side view of the principal part of the electric cooking device of FIG. It is a vertical side view of the protrusion provided with the temperature sensor inside. It is a front view of the temperature measuring body provided in the protrusion. It is a cross-sectional plan view of the protrusion of FIG. It is a perspective view of the electric heating cooker which concerns on other embodiment of this invention. It is a front view of the several temperature measuring body provided in the protrusion of the electric heating cooker which concerns on other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric heating cooker, 2 Main body case, 5 Top plate, 6 Frame, 7A Circle line, 7B Circle line, 7C Circle line, 8A Output display part, 8B Output display part, 8C Output display part, 16 Top plate operation part , 20 Heating element, 26 Protruding part, 27 Temperature measuring element, 28 Inclined surface, 28A Through hole, 29 Holding part, 30 Opposite inclined surface, 31 Protruding wall, 36 Heated object, 38 Temperature detecting part, 90 Sink.

Claims (4)

A top plate on which the object to be heated is placed, a frame provided on the outer periphery of the top plate, a main body case in which the top plate and the frame are arranged on the top surface, an induction coil, A heating body that is heated by an electric resistor or the like, a control body that controls the output of the heating body, a blower that cools a heat generating component provided in the body case, and a temperature that measures the temperature of the object to be heated A temperature sensor with a detector,
An electric heating cooker characterized in that a protrusion is provided with a front upper surface portion of the frame projecting, and the temperature measuring element is disposed in the protrusion.   The protrusion has an inclined surface facing the object to be heated on the top plate, and the temperature measuring element is arranged to measure the temperature of the object to be heated from the inclined surface. The electric heating cooker according to claim 1.   The electric heating cooker according to claim 2, wherein the inclined surface is provided with a protruding wall protruding from the inclined surface.   The electric heating cooker according to any one of claims 1 to 3, wherein the temperature detection unit is an infrared sensor.

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