JPH1012362A - Electric heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the possibility of a heat injury by touching a heating zone after a heating is ended by detecting the high temperature of a heat resisting glass by a temperature sensor built in a hot plate part, detecting the removal of a matter to be heated, and generating an alarm sound. SOLUTION: A matter 18 to be heated placed on a heat resisting glass heating top surface 21 provided on an upper case 22 is heated through a heating zone 23 by the infrared rays from a lamp heater 12 built in a hot plate part 9 provided on a lower case 8. In such a cooker, a temperature sensor arranged within a stepped guide cylinder 26 provided on the hot plate part 9 is energized by a spring 27 and closely fitted to the heat resisting glass. Further, a means for judging the presence of the matter to be heated formed of a light emitting element 30 and a light receiving element 31 is arranged on the upper case 22 with the heat resisting glass in between. After the matter 18 to be heated which is cooked is removed, the absence is detected, and a high temperature exceeding 60-75 deg.C of the heating zone 23 is detected, and an alarm sound is generated through a buzzer 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp heater type heating cooker in which a heating top surface is formed of heat-resistant glass and radiates infrared rays. The present invention relates to a cooking device having a function of notifying a high temperature when the temperature is high.

[0002]

2. Description of the Related Art A conventional heating cooker 1 of this type is disclosed in Japanese Utility Model Laid-Open No. 3-7290. FIG. 42 shows the configuration.
This will be described with reference to FIG.

[0003] That is, when the object to be heated 18 is placed, the high-temperature heating zone 3 of the heat-resistant glass 5 is not touched, but when the object to be heated is removed immediately after heating, the high-temperature heating of the heat-resistant glass 5 is performed. Consideration was given to alert the user to avoid touching Zone 3 with his or her hands. More specifically, the heating top surface 2 is formed of a heat-resistant glass 5 having a heating zone 3 and a non-heating zone 4 and transmitting infrared rays, and is integrated with an upper case 6 and an adhesive 7. The upper case 6 and the lower case 8 are joined by fixing the upper case 6 and the lower case 8 with screws 11.

The heating section 9 is provided immediately below the heating zone 3 of the heating top surface 2. A plurality of lamp heaters 12 for radiating infrared rays are arranged in parallel in a lower case 8, and the upper portion of the heating section 9 is arranged above the heating top surface. 2 which is in contact with the heat-resistant glass 5 and is turned on and off as an operation unit 13 in the upper case 6.
A W14 and a heating unit ON / OFF SW15 are provided.

A display lamp 17 is provided directly below the heat-resistant glass 5 inside the lamp case 16 to display a high temperature.

The operation of the heating cooker 1 is as follows. When the operation ON / OFF switch 14 and the heater ON / OFF switch 15 are turned on to start energization, a plurality of lamp heaters 12 inside the heating section 9 generate heat and the heating unit located immediately above the heating unit 9 is heated. The heat-resistant glass 5 on the top surface 2 is transmitted and the object 18 to be heated such as a pan is heated by radiating and conducting. If the heat-resistant glass 5 is heated after the heating, the indicator lamp 17 is operated to notify that the temperature is high. It is.

[0007]

However, FIG.
43, the conventional cooking device 1 shown in FIG. 43 uses a display lamp 17 provided immediately below the non-heating zone 4 of the heat-resistant glass 5 to display a high temperature. This is the heating zone 3 immediately below the heating object 18 and is not optimal as a display location.

Further, the object to be heated 18 is moved from the heating top surface 2.
May be removed and carried to another place (for example, a kitchen), the display lamp 17 may disappear from the field of view, and may be kept away from the cooking device 1 by accident. During this time, when the infant approaches the high-temperature cooking device, there is a problem that the child forgets to pay attention to this.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, when an object to be heated such as a pot is moved, the surface of the heat-resistant glass on which the object to be heated is placed has a high temperature. Has detected that the object to be heated has been removed and warned by sound to notify the user of the removal.

[0010] According to the invention, since the sound is used to warn the user that the surface of the heat-resistant glass is hot, it is known that the heat-resistant glass is hot even if the user is away from the cooking device. If you can give attention.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a heating cooker having a heat-resistant glass on which an object to be heated is placed, and heating means provided below the heat-resistant glass and heating the object to be heated via the heat-resistant glass. In the case where the object to be heated is removed after the heating is completed and the heat-resistant glass exceeds a predetermined temperature, a warning is given by sound.

[0012] Since the sound glass warns the user that the heat-resistant glass is hot, he / she can be careful when an unrecognizable infant approaches the cooking device.

A heat-resistant glass on which an object to be heated is placed;
Heating means provided on the stove below the heat-resistant glass for heating the object to be heated, temperature measuring means for measuring the temperature of the heat-resistant glass, and whether or not the object to be heated is placed on the heat-resistant glass Heated object presence / absence determining means for determining whether or not, and a warning sound generating means, when the object to be heated is removed, when the heat-resistant glass exceeds a predetermined temperature, so as to warn by sound. It was done.

Then, the temperature of the heat-resistant glass is measured by the temperature measuring means, and a warning sound is emitted when the temperature is high. Therefore, when the infant approaches the cooking device, it is possible to take care not to touch it.

Further, the object to be heated presence / absence determining means is constituted by a pair of a light emitting element and a light receiving element provided above the heat resistant glass and provided with the object to be heated interposed therebetween.

Since the object to be heated is placed between the pair of light emitting element and the light receiving element, the presence or absence of the object to be heated can be reliably determined.

Further, the object to be heated presence / absence determining means is provided below the stove section and includes a light emitting element for irradiating the bottom of the object to be heated and a light receiving element for receiving the reflected light.

If there is no object to be heated, the light emitted from the light emitting element passes through the heat-resistant glass as it is and is scattered to the outside. However, if there is an object to be heated, it is reflected by this and the light is reflected. Since the light receiving element receives light, it is possible to easily determine the presence or absence of an object to be heated.

The object to be heated presence / absence judging means comprises a transmitter for transmitting a pair of ultrasonic waves and a receiver for receiving a wave, which are provided above the heat-resistant glass and sandwich the object to be heated. The configuration was adopted.

Since the object to be heated is placed between the pair of transmitters and the receiver, the presence or absence of the object to be heated can be reliably determined.

Further, the object to be heated presence / absence determining means is arranged on the upper side of the heat-resistant glass and comprises a proximity sensor comprising two light emitting elements and one light receiving element.

Then, whether or not the object to be heated is placed on the heat resistant glass can be easily determined based on the presence or absence of the reflected light on the light receiving element.

Further, the means for determining the presence / absence of an object to be heated is constituted by a pressure sensor provided below the heat-resistant glass.

Further, since the pressure sensor is provided below the heat-resistant glass, the weight of the object to be heated can be easily received, so that the presence or absence of the object to be heated can be reliably determined.

[0025] Further, there is provided an upper case integrated with the heat-resistant glass and a lower case integrated with a stove section having a heating element provided immediately below the heat-resistant glass, and the upper part of the case and the lower part of the case are connected via a spring. Thus, the heat-resistant glass and the stove section are provided so as to be in contact with each other, and a pressure sensor is provided below the heat-resistant glass.

Then, the presence or absence of the object to be heated can be determined based on the change in the pressurized state of the pressure sensor when the object to be heated is removed, and a warning can be issued. The heating top surface is flat and easy to use.

Further, when the object to be heated is removed after the heating is completed, the warning sound generating means generates a warning sound until the temperature of the heat-resistant glass drops to a predetermined temperature, and changes the tone of the warning sound.

Since the tone of the warning sound is changed, the sense of tension is maintained, and the user can continue to be aware that the heat-resistant glass is at a high temperature.

Further, the warning sound generating means is provided with a release manual switch for releasing the warning sound. Therefore, it can be used properly depending on the surrounding situation and is convenient.

Further, the warning sound generating means has a backup function, and generates a warning sound even when the power plug is unplugged from the outlet. Therefore, when the power plug is unplugged from the outlet, a call is made with a warning sound, so that attention can be drawn in any case.

Further, the warning sound generating means is configured to generate a warning when the temperature of the heat resistant glass exceeds 60 ° C. to 75 ° C. For this reason, even if the heat-resistant glass is brought into contact with the heat-resistant glass for a short time, it is possible to prevent burns and to minimize the time for issuing an alarm.

Further, a structure is provided in which a glass plate on which a high-temperature warning mark for notifying that the heat-resistant glass is at a high temperature is clearly indicated, and a high-temperature warning display section having a lamp for irradiating the glass plate. For this reason, it is possible to recognize that the heat-resistant glass is at a high temperature in both the auditory sense and the visual sense.

A high-temperature caution mark is clearly indicated at substantially the center of the heat-resistant glass, and a stove includes a heating element, a guide cylinder facing the high-temperature caution mark, and a temperature sensor. When the object to be heated is removed, a high temperature caution mark is illuminated by a lamp provided at the lower bottom in the guide tube to notify that the heat resistant glass is hot. Thereby, the heating zone having the highest temperature is illuminated with the high-temperature caution mark by the lamp and is most easily recognized.

A stove having a heating element directly below the heat-resistant glass is provided, a temperature sensor is built in, and a high-temperature caution mark is clearly indicated in the same size as the stove. The heating power is set to a high power, and immediately after the heating is completed, when the object to be heated is removed, the high-temperature caution mark is illuminated with an extremely low power to notify that the heat-resistant glass is at a high temperature.

Further, a stove having a heating element is provided immediately below the heat-resistant glass, and a light-emitting element and a light-receiving element for detecting in the horizontal direction are provided on the outside of the stove, and a plurality of high-temperature warning display sections are provided. The caution display section is provided with a lamp section at the bottom of the plate that clearly shows the high-temperature caution mark, and when the object to be heated is removed immediately after the end of heating, the high-temperature caution mark is sequentially illuminated in a scanning manner, so that it is easy to appeal to the eyes,
Good for accidental prevention.

Further, a temperature sensor is provided on a stove immediately below the heat-resistant glass, and a light-emitting element and a light-receiving element for detecting in the horizontal direction are provided on the outer side of the heat-resistant glass, and a plurality of display sections are provided. The part is a red and blue display lamp, and immediately after the end of heating, if the heat-resistant glass is hot, a red lamp is used, and if it is a temperature that does not cause burns even if touched, the blue lamp is illuminated. It is well understood by children.

Further, a temperature sensor is provided on the stove immediately below the heat-resistant glass, a pressure sensor is provided below the heat-resistant glass, and a high-temperature caution display is provided on the outer side. A light is provided, and when the object to be heated is removed immediately after the completion of the heating, the fluorescent lamp is used to illuminate the entire cooking device to notify that the heat-resistant glass is hot. In this way, when the cooker leaves the cooker, it is inadvertently prevented by the light of the fluorescent lamp.

Further, a temperature sensor is provided on a stove section immediately below the heat-resistant glass, and a light-emitting element and a light-receiving element for detecting a horizontal direction are provided on the outer side of the heat-resistant glass, and a patrol light-like high temperature display section is provided on an upper case. The high temperature display unit includes a semicircular cover that is rotated by a motor concentrically with a central fixed lamp inside a red cap, and operates the patrol light when an object to be heated is removed immediately after heating is completed. This is a configuration that informs that the heat-resistant glass is hot, and the display is surprising, which is the most inadvertent prevention.

Further, the temperature of the heat-resistant glass is 60.degree.
When the temperature exceeds ℃, a high temperature is clearly indicated. This makes it possible to easily determine whether or not the heat-resistant glass is at a high temperature.

An embodiment of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 shows a heating cooker 19 according to Embodiment 1 of the present invention.
FIG. FIG. 2 is a sectional view of the cooking device 19.

In the figure, the cooking device is an upper case 22.
And the lower case 28 are combined. The upper case includes a heat-resistant glass 20 on which an object to be heated is placed, a heating top surface 21 forming an upper surface, and an operation unit including an operation on / off switch 14 and a heating unit on / off switch 15 provided on a side surface. 13 are provided. Also, the lower case 28
Is a stove section 9 (heating section) which is provided directly below the heat-resistant glass 20 and has a built-in lamp heater 12 for emitting infrared rays as heating means and a temperature sensor 25 as temperature measuring means.
And a spring 27 that is provided between the lower case 28 and the stove section 9 and that heats the upper portion of the stove section and the temperature sensor 25 so as to contact the heat-resistant glass 20.

In this embodiment, the temperature sensor is provided inside the stepped guide cylinder 26. The size of the heat-resistant glass 20 is larger than the size of the stove 9. Therefore, the heat-resistant glass 20 has a heating zone 23 directly heated by the stove 9 and a non-heating zone 24 not directly heated.
It is composed of

Further, in this embodiment, the upper case 22 is provided with a mound portion A28 and a mound portion B29 on the outer periphery of the heat-resistant glass 20 so as to face each other. The light receiving element 31 is provided inside the mound portion B29.

The operation of the configuration shown in FIGS. 1 and 2 will be described. When the heating cooker 19 turns on the operation ON / OFF SW 14 and the heating unit ON / OFF SW 15 to start energization, the plurality of lamp heaters 12 inside the heating unit 9 generate heat to heat the heat-resistant glass 20 immediately above and transmit the heat through the pan. The object 18 to be heated is heated by conduction and radiation. At this time, the heat-resistant glass 20
Is 350 ° C. to 450 ° C., although it depends on the shape and material of the bottom of the object to be heated. At the end of heating, when the heating unit ON / OFF SW 15 is turned OFF, the plurality of lamp heaters 12 inside the heating unit 9 are turned OFF, but the operation functions of the light emitting element 30, the light receiving element 31, and the temperature sensor 25 remain ON.

Accordingly, when the heating is ended by turning off the heating unit ON / OFF SW 15 and the object 18 to be heated is removed from the heating top surface 21, the temperature of the high temperature heat-resistant glass 20 is detected by the temperature sensor 25 and the light from the light emitting element 30 is emitted. Is a small hole 30A
Is transmitted through the small hole 31A of the light receiving element 31, and the buzzer 32 of the control circuit is turned on to emit a warning sound.

If the warning is given while the warning sound is being emitted, the temperature of the heat-resistant glass 20 is 60 ° C. to 75 ° C.
When the temperature sensor 25 detects that the temperature has dropped to ° C., the buzzer 32 of the control circuit is turned off and the warning ends. This temperature is such that even if the hand is touched for a short time, it does not cause a burn and is felt hot. Usually, it takes about 30 minutes from the end of heating until the temperature of the heat-resistant glass 20 decreases to 60 ° C. to 75 ° C.

The predetermined temperature at which the alarm is stopped is 6
The reason why the temperature was not exceeded in any one of 0 to 75 ° C. was that if the temperature was 75 ° C. or more, it was too hot to touch,
If the temperature is lower, it takes too much time to stop, and it is not practical. Of course, when taking measures such as forced cooling, the temperature is not limited to this temperature.

During the heating, even if the object 18 to be heated is removed from the heating top surface 21, the alarm does not sound.
This is because the plurality of lamp heaters 12 inside the heating section 9 generate heat and emit infrared rays, so it is clear that the apparatus is in operation, so that it is determined that the heat resistant glass is not touched and that the heating operation is continued. That's why. That is, at this time, if the alarm sound is called in the same manner as described above, the usability is deteriorated.

Further, when the operation ON / OFF switch 14 and the heating section ON / OFF switch 15 are turned ON and the energization is started (dry heating) without placing the object to be heated, the heating section ON / OFF switch 15 is also turned OFF.
If FF is performed, the buzzer 32 of the control circuit is turned on as in the previous period, and an alarm sound is called.

The circuit may be configured such that when the power of the heating means is turned off in order to end the heating, the operation of the temperature measuring means, the object to be heated presence / absence determining means and the warning sound generating means is started.

At this time, the warning sound by the buzzer 32 has been described, but it is also possible to use a means such as playing a sound of being hot or a melody.

The term “immediately after the end of heating” in this embodiment refers to
This refers to a case where the heat source (lamp heater) is turned off and the heat-resistant glass is at a high temperature when the object to be heated is removed (the same applies to the following examples).

As described above, according to the first embodiment,
(1) The temperature of the heat-resistant glass and the presence / absence of the object to be heated can be reliably detected by the light emitting / receiving element in the horizontal direction and the temperature sensor built in the stove. (2) When the object to be heated is removed after the completion of the heating, the high temperature of the heat-resistant glass is generated by a warning sound, so that it can be heard even if the heat-resistant glass is separated from the cooking device, thereby preventing inadvertently.

(Embodiment 2) FIG. 3 is an external view of a heating cooker 33 according to Embodiment 2 of the present invention. FIG. 4 is a sectional view of the cooking device 33. FIG. 5 is a sectional view of a main part of the cooking device 33.

In the drawing, the difference from the first embodiment is that the stove section 9 immediately below the heat-resistant glass 20 is provided with not only the temperature sensor 25 and the lamp heater 12 but also a guide cylinder 35 having a partitioning body 34 in a vertical direction inside. The guide tube 3
5 includes a light emitting element 36 and a light receiving element 37 which detect left and right in the vertical direction through a partition body 34 inside. The light-emitting element 36 and the light-receiving element 37 as the object-to-be-heated determination means are provided below the guide cylinder 35 and below the bottom surface of the stove section 9 and are cooled by a fan (not shown) built in the cooking device. Making it easier.

The guide cylinder 35 is formed of an aluminum material treated to reflect infrared rays. The outer surface of the guide tube 35 blocks high-temperature heat from the lamp heater 12, and the inner surface of the guide tube 35 easily emits and receives light. Is being processed.

The operation of the configuration shown in FIGS. 3 to 5 will be described.
8, the light from the light emitting element 36 passes through the heat-resistant glass 20 but is reflected downward by the object 18 to be heated, so that the light is received by the light receiving element 37 and the object 18 is mounted. When there is no object to be heated 18, the light from the light emitting element 36 cannot be received by the light receiving element 37 because it passes through the heat resistant glass 20, so that the object to be heated 1
8 is detected.

That is, the heating top surface 21
When the object to be heated 18 is further removed, first, the temperature sensor 2
5 detects that the heat-resistant glass 20 is at a high temperature, detects that the light from the light emitting element 36 cannot be received by the light receiving element 37, and removes the object 18 to be heated, and turns on the buzzer 32 of the control circuit. Beep sounds.
Thereby, attention can be raised, and even if the user moves away from the cooking device, the sound can be heard, thereby preventing inadvertently.

As described above, according to the second embodiment, the stove section immediately below the heat-resistant glass is provided with the temperature sensor and the light emitting element and the light receiving element which are provided inside the guide cylinder and which detect in the vertical direction. It is possible to realize a heating cooker with improved safety that is completely prevented from being removed from the cooking cooker while maintaining a flat and easy-to-use function with no protrusion on the top surface.

(Embodiment 3) FIG. 6 is an external view of a heating cooker 38 according to Embodiment 3 of the present invention. FIG. 7 is a sectional view of the heating cooker 38.

Referring to the drawings, the difference from the first and second embodiments is that the upper case 22 is provided with a mound portion A39 and a mound portion B40 on the outer peripheral portion of the heat-resistant glass 20 so as to face each other. An ultrasonic transmitter 41 is provided inside the section A39 and a receiver 42 is provided inside the mound section B40.

The operation of the configuration shown in FIGS. 6 to 7 will be described. The ultrasonic transmitter 41 and the receiver 42 are
When the ultrasonic wave 8 is placed, the ultrasonic wave from the ultrasonic wave transmitter 41 passes through the small hole 41A of the wave transmitter 41, but is blocked by the object 18 to be heated, so that it passes through the small hole 42A of the wave receiver 42. To detect that the object to be heated 18 is placed thereon. On the other hand, when there is no object 18 to be heated, the ultrasonic wave from the transmitter 41 passes through the small hole 41A, is received through the small hole 42A of the receiver 42, and the object 18 to be heated is removed. Will be detected.

That is, the heating top surface 21
When the object to be heated 18 is further removed, first, the temperature sensor 2
5 detects the high temperature of the heat-resistant glass 20 and receives the ultrasonic wave from the ultrasonic wave transmitter 41 at the receiver 42, and detects that the object 18 to be heated has been removed, and the control circuit The buzzer 32 is turned on, and the alarm sounds. Thereby, attention can be raised, and even if the user moves away from the cooking device, the sound can be heard, thereby preventing inadvertently.

As described above, according to the third embodiment, the temperature sensor and the ultrasonic wave transmitter are mounted on the stove just below the heat-resistant glass.
The temperature of the heat-resistant glass and the presence / absence of the object to be heated can be detected very reliably by the receiver, and the detection accuracy of the dirt such as boiling-down is hardly reduced.

(Embodiment 4) FIG. 8 is an external view of a heating cooker 43 according to Embodiment 4 of the present invention. FIG. 9 is a cross-sectional view of the cooking device 43, and FIG. 10 is a cross-sectional view of a main part thereof.

In the figure, the difference from the first, second, and third embodiments is that the upper case 22 is provided with a mound portion 44 on the outer peripheral portion of the heat-resistant glass 20, and a light emitting element 45 is provided inside the mound portion A44 as a proximity sensor. Two light emitting elements 45 are provided with a phase shift of 90 degrees, and a light receiving element 46 is provided between the left and right light emitting elements 45.

The proximity sensor operates as a light source by projecting two light emitting elements 45 onto the object 18 to be heated through the small holes 45A and 45B, and reflecting the reflected light through the small holes 46A to the light receiving element 46. The phase shift of the power of the amount of received light is related to the distance. This phase shift is detected to determine the presence or absence of the object 18 to be heated.

That is, the heating top surface 21
When the object to be heated 18 is further removed, the temperature sensor 25 detects the high temperature of the heat-resistant glass 20 and the light from the two light emitting elements 45 detects the phase shift of the power of the received light amount because the object to be heated 18 is absent. Then, the buzzer 32 of the control circuit is turned on, and a warning sound is generated. As a result, even if the user can be alerted and hears the user away from the cooking device, the user can be inadvertently prevented.

As described above, according to the fourth embodiment,
(1) The temperature of the heat-resistant glass and the presence or absence of an object to be heated can be reliably detected by the temperature sensor and the proximity sensor on the stove immediately below the heat-resistant glass. (2) The heating cooker can be provided with a high degree of safety without deteriorating usability because the heating top surface has only one protrusion.

(Embodiment 5) FIG. 11 is an external view of a heating cooker 47 according to Embodiment 5 of the present invention. FIG. 12 is a sectional view of the cooking device 47.

In the drawing, the difference from the first, second, third and fourth embodiments is that the upper case 48 integrated with the heating top surface 21 of the heat-resistant glass 20 is different from the lower case having a heating portion 49 therein. 50 is connected to the upper case 4 via a spring 51.
8 are connected so as to be able to move up and down.
9 has a built-in temperature sensor 25,
2 and is provided immediately below the heat-resistant glass 20, and the pressure sensor 54 is provided on a metal fitting 53 integrated using the heating unit 49.

The operation of the configuration shown in FIGS. 11 and 12 will be described. The temperature of the heat-resistant glass 20 is detected by the temperature sensor 25, and the presence or absence of the object 18 to be heated is detected by the pressure sensor 54. That is, when the object 18 is placed on the heat-resistant glass 20, the heat-resistant glass 20 is urged downward, and the pressure sensor 54 detects this. On the other hand, when the object to be heated 18 is removed, a gap is opened between the heat resistant glass 20 and the heating unit 49 by the force of the spring 51, and the object to be heated 18 is not placed because the pressure sensor 54 receives no pressure. Will be detected.

Further, the performance of this type of pressure sensor 54 generally tends to change depending on the ambient temperature. On the other hand, according to the present invention, the stove section 49 is provided at a position where it does not directly receive the high-temperature heat, and is cooled by a fan (not shown) built in this type of equipment to achieve high accuracy. High performance can be maintained.

That is, immediately after the end of the heating, the heating top surface 21
When the object to be heated 18 is further removed, the temperature sensor 25 detects the high temperature of the heat-resistant glass 20 and the pressure sensor 54.
Detects that the object to be heated 18 is not placed, turns on the buzzer 32 of the control circuit, and emits a warning sound.

As described above, according to the fifth embodiment,
(1) A configuration in which a temperature sensor and a pressure sensor are provided on the stove just below the heat-resistant glass. The heating top surface has no protrusion and maintains a flat and easy-to-use function, while preventing accidental removal from the cooking device. realizable. (2)
By providing the installation location of the pressure sensor at a location where the temperature is relatively low, highly accurate performance can be maintained.

(Embodiment 6) FIG. 13 is an external view of a heating cooker 55 according to Embodiment 6 of the present invention. FIG. 14 is a sectional view of the cooking device 55, and FIG. 15 is a circuit diagram thereof.

The feature of this embodiment is that the temperature of the heat-resistant glass 20 is detected by the temperature sensor 25 and the light emitting element 30 and the light receiving element 3 are detected.
1 detects the presence or absence of the object 18 to be heated, and the temperature sensor 25 incorporated in the stove section 9 has two functions. 18 is to perform high cut temperature control for automatically stopping the operation when the oil temperature in 18 rises to an abnormal temperature.

For this purpose, the temperature sensor (thermistor) 2
5 and a resistor 56 are connected in series, a control voltage V1 is applied to both ends, a voltage V2 of the resistor 56 is detected, a resistance value is obtained by calculation, and a temperature level is determined. And Example 1
Similarly, when the object to be heated 18 is removed, the buzzer 32 of the control circuit (not shown) is turned on and a warning sound is emitted until the temperature drops to a temperature at which there is no danger of a burn even if the heat-resistant glass 20 is touched. Become. As a result, even if the user can be alerted and hears the user away from the cooking device, the user can be inadvertently prevented.

At this time, the voltage V2 is compared with the constant voltage V1.
The buzzer 32 warning sound of the control circuit (not shown) is changed in accordance with the change of. For example, a high voltage V2 means a high temperature and a low voltage V2 means a low temperature.
The warning sound is changed in accordance with the change of 2. That is,
When the temperature is high, make the warning sound louder to draw more attention,
The lower the temperature, the lower the warning sound.

Although the continuous warning sound seems to draw more attention, it may be noisy and may be intermittent.

As described above, according to the sixth embodiment,
(1) When the object to be heated is removed immediately after the end of the heating, the heat-resistant glass is called by a warning sound that the temperature is high,
Even if you move away from the cooking device, it will be transmitted by voice and will be inadvertently prevented. (2) When the warning sound is issued, the warning sound is changed in accordance with the change in the temperature of the heat-resistant glass, and care is taken so that the user does not feel noisy.

(Embodiment 7) FIG. 16 is an external view of a heating cooker 57 according to Embodiment 7 of the present invention. FIG. 17 shows the cooking device 5
7 is a sectional view, and FIG. 18 is a circuit diagram thereof.

In the figure, the following points are similar to the first and sixth embodiments. The temperature of the heat-resistant glass 20 is detected by the temperature sensor 25, and the object 18 to be heated 18 is detected by the light-emitting element 30 and the light-receiving element 31.
And the temperature sensor 25 have two functions. Furthermore, the control voltage V1 and the voltage V2 of the resistor 56 are detected, the resistance value is obtained by calculation, and the temperature level is determined. When the object 18 to be heated is removed, the buzzer 32 of the control circuit (not shown) is turned on until a temperature lowers to a temperature at which there is no danger of burns even if the heat resistant glass 20 is touched, and an alarm sound is generated. Become. As a result, even if the user can be alerted and hears the user away from the cooking device, the user can be inadvertently prevented.

On the other hand, the difference from the first or sixth embodiment is that the operation unit 13 is provided with a manual switch 58 for canceling a warning sound.

In other words, this type of cooking device is used to draw attention to the indiscriminate toddlers and children to avoid touching the hot parts of the heat-resistant glass 20 and to avoid burns.
When 0 is high temperature, a warning sound is sounded to call attention to the parent. However, when using it in a family with only adults without infants, it is important to note that immediately after heating, the temperature is immediately high due to the radiant heat from the heat-resistant glass. When using, the warning sound for calling attention is simple and good, and when it is stiff, it sounds loud. Therefore, the warning sound call can be manually canceled during the operation.

As described above, according to the seventh embodiment,
(1) When the object to be heated is removed immediately after the end of the heating, a warning sound is generated to warn that the heat-resistant glass is at a high temperature. (2) When a warning sound is generated, the call for the warning sound can be stopped by a manual release switch, so that care is taken so as not to feel noisy.

(Eighth Embodiment) FIG. 19 is an external view of a heating cooker 59 according to an eighth embodiment of the present invention. FIG. 20 shows the cooking device 5
9 is a sectional view, and FIG. 21 is a circuit diagram thereof.

In the figure, the following points are similar to the first, sixth and seventh embodiments. That is, the temperature sensor 25 detects the temperature of the heat-resistant glass 20 and the light-emitting element 30 and the light-receiving element 31 detect the presence or absence of the object 18 to be heated. The temperature sensor 25 has two functions. Furthermore, the control voltage V1 and the voltage V2 of the resistor 56 are detected, the resistance value is obtained by calculation, and the temperature level is determined. Then, when the object 18 to be heated is removed, the buzzer 3 of the control circuit (not shown) until the temperature is reduced to a temperature at which there is no danger of burning even if the heat resistant glass 20 is touched.
2 is turned on, and a warning sound is generated. As a result, even if the user can be alerted and hears the user away from the cooking device, the user can be inadvertently prevented.

On the other hand, the difference from the first, sixth, and seventh embodiments is that the control circuit has a backup function so that a warning sound is generated even when the power plug 60 is pulled out from an outlet (not shown). It is added.

As the backup function, a capacitor 61 or a dry battery 62 charged during operation is used.

That is, (1) immediately after the heating is completed,
When the operation is stopped by removing the power plug 8 and unplugging the power plug 60 from the outlet, the warning sound for calling attention is not called. (2) Backing up the problem that even if the power plug 60 is unplugged from the outlet to stop the operation and then the object to be heated 18 is removed, the function of generating a warning sound to alert the user cannot be performed. This has been solved by adding functions.

As described above, according to the eighth embodiment,
(1) When the object to be heated is removed immediately after the end of the heating, the heat-resistant glass is called by a warning sound that the temperature is high,
Even if you move away from the cooking device, it will be transmitted by sound and will be inadvertently prevented. (2) A warning sound is generated even when the power plug is unplugged from the outlet, and attention is paid so that the user can be alerted in any case.

(Embodiment 9) FIG. 22 is an external view of a heating cooker 63 according to Embodiment 9 of the present invention. FIG. 23 is a cross-sectional view of the cooking device 63. FIG. 24 is a high-temperature caution mark diagram.

In the figure, a high temperature caution display section is added based on the first embodiment. That is, the cooking device 63
The upper case 22 is provided with a mound portion A28 and a mound portion B29 on the outer peripheral portion of the heat-resistant glass 20 so as to face each other, and a light emitting element 30 is provided inside the mound portion A28 and a light receiving element 31 is provided inside the mound portion B29. A temperature sensor 25 is provided on the stove 9 directly below the heat-resistant glass 20, and a high-temperature warning display 64 is provided on the outer periphery of the heat-resistant glass 20.

The high-temperature caution display portion 64 is a glass plate 66 on which a high-temperature caution mark 65 in which a diagonal line is added to a handprint which has become a common sense as a mark which is not touched by hands is clearly indicated.
A lamp 68 is provided inside a cylinder 67 supporting the lamp.

From these facts, when the object 18 to be heated is removed from the heating top surface 22 immediately after the end of the heating, first, the temperature sensor 25 detects the high temperature of the heat resistant glass 20 and the light from the light emitting element 30 is received by the light receiving element. At 31, the buzzer 32 of the control circuit is turned on to sound a warning sound while detecting that the article 18 to be heated has been removed, and the temperature sensor 25 detects that the heat-resistant glass 20 is at a high temperature. The detected high temperature caution mark 65 of the high temperature caution display section 64 blinks.

As described above, according to the ninth embodiment,
(1) The temperature sensor and the presence or absence of the object to be heated are detected by the light emitting element and the presence or absence of the object to be heated placed on the stove immediately below the heat-resistant glass. Attention can be raised by double occurrence of high temperature display. (2) Even if it is far from the cooking device, it will be completely prevented.

(Embodiment 10) FIG. 25 shows Embodiment 1 of the present invention.
It is an external view of the heating cooker 69 of No. 0. FIG. 26 is a sectional view of the pre-heating cooker 69, and FIG. 27 is a sectional view of a main part thereof. FIG. 28 is a high-temperature display mark diagram of another embodiment.

In the figure, the difference from the above embodiments is that the high temperature caution display 70
And a guide tube 72 having a size corresponding to the size of the high-temperature display portion 70 as well as the temperature sensor 25 and the lamp heater 12 inside the stove portion 71 directly below the stove portion 71. A lamp 74 is provided on the lower bottom of the tube 72 via a heat shield 73.

The guide cylinder 72 is provided with a stepped portion 75, a donut-shaped heat-resistant packing 76, and is made of an aluminum material having a high infrared reflectance. Further, the high temperature display section 70 is a mark 77 in which a diagonal line is displayed on a handprint that has high social recognition as a mark that is not touched by a hand, and is drawn with a double line 78 that is framed.

In this type of heating cooker, the hottest portion of the heat-resistant glass 20 immediately after the end of the heating is the heating zone 23.
It is optimal to display this portion at a high temperature.

However, the high temperature display in the conventional example is not the heating zone 23 but the peripheral portion of the outer periphery. In order to provide a high temperature display section in the heating zone, it is necessary to provide a display device inside the stove. On the other hand, the lamp heater 12 has a high temperature, so it is necessary to shield the heat with a thick heat insulating material, and it is difficult to display a large area because it interferes with the lamp heater 12, so that it cannot be realized. It is a thing.

The present invention solves this problem, and uses a guide cylinder 72 utilizing the reflection of an aluminum material to form a lamp heater 1.
In addition to reflecting the infrared rays from the lens 2 and enduring high temperatures, a heat shield 73 is provided to block the heat inside the front guide cylinder 72, and a lamp 74 is provided at the lower bottom. As a result, the area for high-temperature display can be increased because the thickness can be increased to the thickness of the heat insulating material. In addition, the high temperature display unit 70 is clearly displayed with the double line 78 framed, and the lamp 74 flashes to draw attention.

That is, the heating top surface 21
When the object to be heated 18 is further removed, first, the temperature sensor 2
5 detects that the heat-resistant glass 20 is at a high temperature, and blinks the high-temperature caution mark 77 on the lamp 74 provided at the lower bottom of the guide cylinder 72.

Further, the description has been made with a mark having a diagonal line displayed on a handprint which has high social recognition.
As shown in FIG. 28, a double-lined high-temperature caution character may be used.

As described above, according to the tenth embodiment,
(1) The temperature sensor provided in the stove unit detects the temperature, and the heating zone, which is the highest temperature of the heat-resistant glass, illuminates the high-temperature caution mark with the lamp, which is easy to understand. (2) Since the plate thickness is small because the reflection of the aluminum material is used, the diameter of the guide cylinder can be increased accordingly. Therefore, there is an effect that the area of the high-temperature display becomes large and the high-temperature display becomes easy to see.

(Embodiment 11) FIG. 29 shows Embodiment 1 of the present invention.
It is an external view of 1 heating cooker 79. FIG. 30 is a cross-sectional view of the heating cooker 79.

In the figure, the difference from the above-described embodiments is that the lower case 50 having the stove section 80 therein is connected to the upper case 48 integrated with the heating top surface 21 of the heat-resistant glass 20 by a spring 51. Through the upper case 48
Are connected so that they can move up and down.

The stove section 80 has a built-in temperature sensor 25, is fixed by the lower case 50 and the legs 52, and is provided immediately below the heat-resistant glass 20. The object 18 to be heated is placed on the heat-resistant glass 20. When it is placed, the heat-resistant glass 20 comes in contact with the stove section 80, and when the object to be heated 18 is removed, a gap is opened between the heat-resistant glass 20 and the stove section 80 by the force of the spring 51.

Further, a pressure sensor 54 is provided in the metal fitting 53 integrated by using the stove section 80, a control circuit (not shown) is provided inside the lower case 50, and the heat-resistant glass 20 and the stove section after heating are completed. A fan 84 is provided for cooling the 80.

A high-temperature caution mark 82 is clearly indicated as a high-temperature display section 81 having substantially the same size as the heating zone 21 of the heat-resistant glass 20. Is used as a mark 82, and is clearly displayed with a framed double line 83, and the lamp heater 12 is used without newly providing a lamp for the high temperature display section 81.

In this type of heating cooker, the hottest part of the heat-resistant glass 20 immediately after the end of heating is the heating zone 23.
It is optimal to display this portion at a high temperature.

However, the high temperature display in the conventional example is not the heating zone 23 but the peripheral portion of the outer periphery. In order to provide a high temperature display section in the heating zone, it is necessary to provide a display device inside the stove. On the other hand, since the lamp heater 12 is high temperature, it is necessary to shield the heat with a thick heat insulating material, and it is difficult to display a large area because it interferes with the lamp heater 12. It is a thing.

On the other hand, in the case of the present invention, the operation is turned off immediately after the end of heating, and
When the heater 18 is removed, the temperature sensor 25 detects the high temperature of the heat-resistant glass 20 and the pressure sensor 54 detects that the object 18 has been removed. On the other hand, when the operation is turned off immediately after the end of heating and the object 18 to be heated is removed, since the heat-resistant glass 20 is at a high temperature, the lamp heater 12 is operated at an extremely low power and the high-temperature caution mark 71 is used.
Will illuminate.

In other words, the entire heating zone 21 having the highest temperature is not displayed at a high temperature by a newly provided display lamp, but the lamp heater 12 inside the stove section 80 is controlled.
At this time, when the object to be heated 18 is removed, a gap is opened between the heat-resistant glass 20 and the stove section 80 by the force of the spring 51, and the lamp heater 12 is operated with extremely low power to operate the high-temperature caution mark 71. The fan 84
Then, the heat-resistant glass 20 is cooled. Thus, even if the lamp heater 12 is operated at an extremely low power for displaying a high temperature immediately after the end of the heating, the temperature of the heat-resistant glass is reduced with the lapse of time, which has been realized.

As described above, according to the eleventh embodiment,
(1) When the object 18 to be heated is removed immediately after the end of the heating, the entire heating zone having the highest temperature is displayed at a high temperature by the switching control of the power of the lamp heater, which is easy to understand.
(2) There is no need to newly include a high-temperature display lamp, and there is an effect that the configuration becomes simple.

(Embodiment 12) FIG. 31 shows Embodiment 1 of the present invention.
It is an external view of the 2 cooking devices 85. FIG. 32 is a cross-sectional view of the heating cooker 85, and FIG.

In the drawing, a temperature sensor 25 is built in a stove section 86 immediately below a heat-resistant glass 20, and a light emitting element 30 and a light receiving element 31 are provided inside thereof so as to face a mound part A 28 and a mound part B 29. The difference from the above embodiment is that a high-temperature caution display portion 87 is provided on the outer side of the heat-resistant glass 20 at a position divided into four, and a guide cylinder 89 supporting a glass plate 88 is provided at a lower portion opposite to the high-temperature caution display portion. , A lamp 90 is provided at the lower portion inside.

Further, only the display area line 91 is clearly indicated on the heat-resistant glass 20, and a diagonal line is displayed on the glass plate 88, as shown in FIG. Reference numeral 91 indicates a clear display with a double line 92 framed. further,
It is preferable that the high-temperature caution display section 87 does not display anything at the time of normal heating, and the high-temperature display mark blinks red suddenly when the object to be heated is removed from the top surface of the heating immediately after the completion of the heating.
As another means, (1) means for turning on at the time of normal heating and suddenly flashing the high temperature display mark in red when the object to be heated is removed immediately after the heating is completed. (2) There is a means in which when the object to be heated is removed immediately after the completion of the heating without displaying anything at the time of the normal heating, the high-temperature display marks suddenly blink in red at four places without sequentially scanning.

In the present invention, when the object 18 to be heated is removed from the heating top surface 21 immediately after the end of the heating, the temperature sensor 25 detects the high temperature of the heat-resistant glass 20 and
The light from the light emitting element 30 is received by the light receiving element 31 to detect that the object to be heated 18 has been removed, so that one of the four high-temperature caution marks 91 blinks red, and then sequentially at regular time intervals. It is to be scanned.

As a result, the heat-resistant glass 20 immediately after heating is not provided with a high-temperature display portion in the heating zone 21 having the highest temperature, but attention can be drawn to a lively high-temperature display.

As described above, according to the twelfth embodiment,
(1) A mark that displays a diagonal line on a handprint that is socially recognizable to draw attention, is clearly displayed by a double line that is framed, and is sequentially scanned at regular time intervals. It is easy to understand and is good for accidental prevention. (2)
When the object to be heated is removed from the top surface of the heating immediately after the end of the heating without any display during the normal heating, the high temperature display mark flashes red suddenly, which is easily noticed and easily understood.

Embodiment 13 FIG. 34 shows Embodiment 1 of the present invention.
It is an external view of the heating cooker 93 of No. 3. FIG. 35 is a cross-sectional view of the heating cooker 93, and FIG. 36 is a partial cross-sectional view of a main part thereof.

In the figure, the temperature sensor 25 is built in the stove 95 immediately below the heat-resistant glass 20, and the light emitting element 30 and the light receiving element 31 are provided inside the outer periphery so as to face the mound A 28 and the mound B 29. The difference from the above embodiments is that the upper case 94 on the outer periphery of the heat-resistant glass 20 is provided with a plurality of high-temperature display portions 96.
The high temperature display section 96 has a transparent lens-like plate 97 inserted and fixed in the upper case 94, and has a guide tube 99 having a lamp 98 in a corresponding lower part inside.
Further, the lamp 98 of the high temperature display section 96 includes a red lamp 98A on one side and a blue lamp 98B on the other side.

The operation is performed immediately after the heating is completed.
Is removed, the temperature sensor 25 detects the high temperature of the heat-resistant glass 20 and emits light from the light emitting unit 30 to the light receiving unit 3.
At 1, the light is received and the removal of the object to be heated 18 is detected. At this time, if the temperature of the heat-resistant glass 20 is high, the red lamp 86A is turned on and off, and if the temperature of the heat-resistant glass 20 drops to a temperature that does not cause a burn even if touched by a hand, the circuit is switched, the red lamp 86A is stopped, and the blue lamp 86B is turned on. It will illuminate. At this time, the plate 97
Can be displayed in a wide range by making the lens look like a transparent lens.

As a result, the heat-resistant glass 20 immediately after heating is not provided with a high-temperature display section in the heating zone 21 having the highest temperature. It is a display that can be alerted even by children.

[0127] The display method has been described with reference to a method of displaying any lamp when the object 18 to be heated is removed immediately after heating without any display during normal heating. When the heat-resistant glass 20 is at a high temperature, the red lamp blinks when the object 18 to be heated is removed immediately after the heating is completed.

As described above, according to the thirteenth embodiment,
(1) A red lamp or a blue lamp, which has become a common sense in society, is displayed as a display around the heat-resistant glass on the heating top surface, which is easy to understand. (2) There is no display at the time of normal heating, and when the object to be heated is removed from the top surface of the heating immediately after the end of the heating, the display mark flashes and can be recognized by a child, so that the display has a simple configuration.

(Embodiment 14) FIG. 37 shows Embodiment 1 of the present invention.
It is an external view of the cooking device 100 of No. 4. FIG. 38 is a sectional view of the cooking device 100.

In the figure, the difference from the above embodiments is that the upper case 101 integrated with the heat-resistant glass 20 is different from the lower case 10 having a stove 102 inside.
3 is connected by screws 105 so that the upper case 101 can move up and down via a spring 104. The stove unit 102 has a built-in temperature sensor 25 and
03 and the leg 106, and provided immediately below the heat-resistant glass 20.
8 is placed on the heat-resistant glass 20 and the stove section 102.
When the object 18 to be heated is removed, a gap is opened between the heat-resistant glass 20 and the heating unit 102 by the force of the spring 104.

Also, a fluorescent lamp 110 for displaying high temperature is provided inside the upper case 101 having a high temperature display section 109 and a pressure sensor 108 in a metal fitting 107 integrated by using the stove section 102, and A slit A111 is provided at a portion corresponding to the fluorescent lamp 110. Further, a slit B112 is also provided on the bottom surface of the lower case 103.

Further, the slit A111 of the high temperature display section 109 sinks downward when the object to be heated is placed and is hidden by the lower case, and protrudes from the lower case when the object to be heated is removed. Slit B11
It is better to provide 2 on the front, back, left, and right sides of the cooking device 100.

When the object 18 is removed from the heating top surface 21 immediately after the end of heating, the temperature sensor 25 detects a high temperature of the heat-resistant glass 20, the pressure sensor 108 detects a change in weight, and the fluorescent lamp 110 Light. Thus, the heat-resistant glass 20 immediately after heating is not provided with the high-temperature display section in the heating zone 21 having the highest temperature.
The light from the fluorescent lamp 110 is brightly illuminated upward from the slit A111, and is brightly illuminated from the slit B112 toward the dining table (not shown). It is easy.

As described above, according to the fourteenth embodiment,
(1) By detecting the presence or absence of an object to be heated by a pressure sensor and removing the object to be heated immediately after the end of heating, the upper surface and the lower surface of the heat resistant glass are illuminated with a fluorescent lamp to indicate that the temperature is high. It is easy to understand. (2) When the heating cooker is left, it is completely prevented, and during heating with the object to be heated placed, the slit A sinks downward and is hidden in the lower case, so that even if it is spilled, It does not enter the inside of the lower case. Of course, there is an effect that the fluorescent lamp is not affected. .

(Embodiment 15) FIG. 39 shows Embodiment 1 of the present invention.
It is an external view of the heating cooker 113 of No. 5. FIG. 40 is a cross-sectional view of the heating cooker 113, and FIG. 41 is a cross-sectional view of main parts thereof.

In the figure, the difference from the above-described embodiments is that a high-temperature display section 116 in the form of a patlite is provided on the outer periphery of the upper case 114 integrated with the heat-resistant glass 20.

That is, a stove section 115 having a built-in lamp heater 12 and a temperature sensor 25 for radiating infrared rays is provided directly below the heat-resistant glass 20, and is provided on the outer periphery of the upper case 114 so as to face the mound section A 28 and the mound section B 29. A light emitting element 30 is provided inside the mound part A28 and a light receiving element 31 is provided inside the mound part B29.

The high temperature display section 116 is a patrol light style. The gear 1 rotated by the motor 118 is placed inside a red cap 117 protruding from the upper case 114.
A semicircular cover 120 directly connected to the gear 19 and the gear 119 is provided, and a lamp 121 which is concentric with the semicircular cover 120 and is not rotated is provided.

In the operation of the present invention, when the object to be heated 18 is removed immediately after the end of heating, the temperature sensor 25 detects the high temperature of the heat-resistant glass 20 and the light from the light emitting element 30 is received by the light receiving element 31. Being heated 18
Detect that has been removed. If the temperature of the heat-resistant glass 20 is high, the motor 118 rotates and the gear 119 is rotated.
As the semicircular cover 120 rotates, the lamp 121 also lights up. At this time, since the semicircular cover 120 illuminates the light of the lamp 121 at a certain angle at 360 degrees during rotation, the light of the lamp 121 is
At 7, it looks like a flickering pattern.

In another embodiment, a high temperature display section 116 is provided at a position below the upper case 114 during normal heating, and the object 18 to be heated is removed immediately after the heating is completed.
There is a means for displaying a patrol light projecting from the position 4.

As a result, although the heat-resistant glass 20 immediately after heating is not provided with a high-temperature display section in the heating zone 21 having the highest temperature, the high-temperature display section 116 has a patrol light style, and is not suitable for use in fire trucks and police cars. It is one of the expressions recognized in daily life as it is, and it is easy to call attention.

As described above, according to the fifteenth embodiment,
(1) The patrol light provided as a display around the heat-resistant glass on the heating top surface is a common sense in society and is easy to understand. (2) When the heating cooker is left, it can be completely prevented, and a display that can be recognized by a child can be realized with a simple configuration.

[0143]

As described above, according to the heating cooker of the present invention, the following effects can be obtained.

(1) A temperature sensor in the stove section and a light-emitting element and a light-receiving element for detecting horizontally in the outside of the heat-resistant glass are provided. When the object to be heated is removed after the completion of heating, it is sounded that the heat-resistant glass is at a high temperature. It is a configuration for notifying the user when the user is away from the cooking device. further,
Parents can be careful even if an unidentified infant approaches the cooking device.

(2) A light-emitting element, a light-receiving element, and a temperature sensor for detecting up and down directions are provided on the stove directly below the heat-resistant glass, and when the object to be heated is removed after the completion of heating, a sound indicates that the heat-resistant glass is at a high temperature. It is a configuration to notify, and it is possible to prevent inadvertently when the heating top surface is separated from the cooking device while maintaining the flat heating top surface and a convenient function.

(3) A transmitter and a receiver for detecting ultrasonic waves in the horizontal direction are provided outside the heat-resistant glass, and a temperature sensor is provided on the stove. When the object to be heated is removed after heating is completed, the heat-resistant glass is removed. Since the high temperature is notified by sound, it is possible to realize a device that has a small decrease in detection accuracy even with respect to contamination due to cooking or the like.

(4) Two light-emitting elements and one light-receiving element are provided as proximity sensors on the outside of the heat-resistant glass and the temperature sensor in the stove section, and when the object to be heated is removed after heating, it is sounded that the heat-resistant glass is hot. The alarm can be reliably detected by the configuration for informing.

(5) The heat-resistant glass and the case are integrated,
A stove part having a temperature sensor integrated with the lower part of the case immediately below, the upper part of the case and the lower part of the case are connected via a panel so that the heat-resistant glass and the stove part are provided, and a part of the stove part is provided. Equipped with a pressure sensor, which informs by sound that the heat-resistant glass is hot when the object to be heated is removed after heating, the heating top surface is separated from the cooking device while maintaining a flat and convenient function. You can prevent accidental accidents. In addition, when the object to be heated is removed, the stove to which the pressure sensor is attached is cooled by the fan because a gap is formed between the heat-resistant glasses, so that a low temperature can be maintained and the detection accuracy is stabilized.

(6) The presence or absence of the object to be heated is detected by the temperature sensor of the stove, the light emitting element and the light receiving element, and the high temperature of the heat resistant glass is notified by sound when the object to be heated is removed after the heating is completed. However, by controlling the temperature sensor to reduce the tone of the sound together with the temperature change by the temperature sensor, it is possible to prevent innocence when the user is away from the cooking device without being noisy.

(7) The presence or absence of the object to be heated is detected by the temperature sensor of the stove, the light emitting element and the light receiving element, and when the object to be heated is removed after the completion of the heating, the high temperature of the heat resistant glass is notified by sound. However, since the temperature sensor notifies the user of the temperature at which the heat-resistant glass can be touched, and the notification can be stopped halfway by a manual switch, a convenient cooking device can be provided.

(8) The presence of the object to be heated is detected by the temperature sensor of the stove, the light emitting element and the light receiving element, and the high temperature of the heat-resistant glass is notified by sound when the object to be heated is removed after the heating is completed. Because it is backed up so that it works even if you remove the power plug from the outlet,
It is possible to prevent inadvertently leaving the cooking device at any stop.

(9) A temperature sensor in the stove section and a light emitting element and a light receiving element for detecting in the horizontal direction are provided on the outer side of the heat-resistant glass. In addition, a high-temperature warning lamp display section is provided. It is configured to notify the high temperature of the glass by voice and the lamp, and it is possible to call attention by double and prevent inadvertently when leaving the cooking device.

(10) A high-temperature caution mark is clearly indicated at the temperature sensor of the stove and a substantially central portion of the heat-resistant glass, and the high-temperature caution mark provided in the highest temperature heating zone of the heat-resistant glass when the object to be heated is removed after heating is completed. Is illuminated by a lamp, which is the most obvious.

(11) A high-temperature caution mark is clearly indicated on the heat-resistant glass with a size approximately equal to the size of the stove part having the heating element, and the heating element is set to a high power at the time of heating and the object to be heated is removed after the heating is completed. The configuration is such that the high-temperature caution mark is illuminated with extremely low power, and it is possible to realize the most inexpensive and most recognizable one because it can be performed without newly installing a lamp device for illuminating the high-temperature caution mark.

(12) A structure in which a plurality of high-temperature caution display sections are provided on the outside of the heat-resistant glass and the temperature sensor of the stove section, and when the object to be heated is removed after the completion of heating, the high-temperature caution marks are sequentially illuminated by scanning. It is easy to appeal to the sight and is good for accidental prevention.

(13) A temperature sensor for the stove section and a plurality of display sections on the outer side of the heat-resistant glass are provided. The display section is made up of a red lamp and a blue lamp. It is designed to turn on a blue lamp if the temperature does not cause burns even if touched. It is a simple means of alerting and is well understood by children.

(14) A temperature sensor on the stove and a high-temperature caution indicator on the outer side of the heat-resistant glass, a fluorescent lamp indicator below the heat-resistant glass, and heating when the object to be heated is removed after heating is completed. It is a configuration that illuminates the entire upper and lower portions of the cooker, and when the cooker is left, it is completely prevented.

(15) A temperature sensor in the stove section and a high temperature caution display section on the outside of the heat-resistant glass, which is driven by a red cap and rotated by a motor to flash light, are used to remove the object to be heated after heating is completed. Since the display is made violently, inadvertent prevention is possible.

[Brief description of the drawings]

FIG. 1 is an external view of a heating cooker according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the cooking device.

FIG. 3 is an external view of a heating cooker according to a second embodiment of the present invention.

FIG. 4 is a sectional view of the cooking device.

FIG. 5 is a sectional view of a main part of the cooking device.

FIG. 6 is an external view of a heating cooker according to a third embodiment of the present invention.

FIG. 7 is a sectional view of the cooking device.

FIG. 8 is an external view of a heating cooker according to a fourth embodiment of the present invention.

FIG. 9 is a sectional view of the cooking device.

FIG. 10 is a sectional view of a main part of the cooking device.

FIG. 11 is an external view of a heating cooker according to a fifth embodiment of the present invention.

FIG. 12 is a sectional view of the cooking device.

FIG. 13 is an external view of a heating cooker according to a sixth embodiment of the present invention.

FIG. 14 is a sectional view of the cooking device.

FIG. 15 is a main part circuit diagram of the cooking device;

FIG. 16 is an external view of a heating cooker according to a seventh embodiment of the present invention.

FIG. 17 is a sectional view of the cooking device.

FIG. 18 is a main part circuit diagram of the cooking device;

FIG. 19 is an external view of a cooking device according to an eighth embodiment of the present invention.

FIG. 20 is a sectional view of the cooking device.

21A is a circuit diagram of a main part of a backup power supply of the cooking device. FIG. 21B is a circuit diagram of a main part of a backup power supply of the cooking device.

FIG. 22 is an external view of a cooking device according to a ninth embodiment of the present invention.

FIG. 23 is a sectional view of the cooking device.

FIG. 24 is a diagram of a high-temperature caution mark used for the cooking device.

FIG. 25 (a) is an external view of a cooking device according to the tenth embodiment of the present invention.

FIG. 26 is a sectional view of the cooking device.

FIG. 27 is a sectional view of a principal part of the cooking device.

FIG. 28 is a diagram of a high-temperature caution mark used for the cooking device.

FIG. 29 is an external view of a cooking device according to an eleventh embodiment of the present invention.

FIG. 30 is a sectional view of the cooking device.

FIG. 31 is an external view of a cooking device according to a twelfth embodiment of the present invention.

FIG. 32 is a sectional view of the cooking device.

FIG. 33 is a diagram of a high-temperature caution mark used for the cooking device.

FIG. 34 is an external view of a heating cooker according to Embodiment 13 of the present invention.

FIG. 35 is a sectional view of the cooking device.

FIG. 36 is a sectional view of a main part of the cooking device.

FIG. 37 is an external view of a cooking device according to Embodiment 14 of the present invention.

FIG. 38 is a sectional view of the cooking device.

FIG. 39 is an external view of a heating cooker according to Embodiment 15 of the present invention.

FIG. 40 is a sectional view of the cooking device.

FIG. 41 is a sectional view of a principal part of the cooking device.

FIG. 42 is an external view of a conventional heating cooker.

FIG. 43 is a sectional view of the cooking device.

[Explanation of symbols]

 9 Stove unit 12 Heating element (heating means) 18 Heated object 20 Heat-resistant glass 25 Temperature sensor (temperature measuring means) 30, 36, 45 Light emitting element 31, 37, 46 Light receiving element 32 Buzzer (warning sound generating means) 41 Wave transmission Instrument 42 Receiver 48 Case upper 50 Case lower 51 Spring 54 Pressure sensor 58 Release manual switch 60 Power plug 61, 62 Backup power supply 64 High temperature caution indicator 65 High temperature caution mark 66 Glass plate 68 Lamp 72 Guide cylinder 88 Plate 96 Display 98A red lamp 98B blue lamp 110 fluorescent lamp 117 red cap 120 cover 121 lamp

Claims (20)

[Claims] 1. A heating cooker having a heat-resistant glass on which an object to be heated is mounted and a heating means provided below the heat-resistant glass and heating the object to be heated via the heat-resistant glass, after the heating is completed. A heating cooker in which a warning is given by sound when the object to be heated is removed and the heat-resistant glass exceeds a predetermined temperature. 2. A heat-resistant glass for placing an object to be heated, heating means provided on a stove below the heat-resistant glass for heating the object to be heated, and temperature measuring means for measuring the temperature of the heat-resistant glass. A heating object presence / absence determination unit that determines whether the object to be heated is placed on the heat-resistant glass, and a warning sound generation unit, wherein the warning sound generation unit sets the heating object after heating is completed. A heating cooker configured to warn by sound when the heat-resistant glass exceeds a predetermined temperature when removed. 3. The heating cooker according to claim 2, wherein the object-to-be-heated determination means comprises a pair of a light emitting element and a light receiving element provided above the heat-resistant glass and sandwiching the object to be heated. 4. The cooking device according to claim 2, wherein the object to be heated presence / absence determination means is provided below the stove, and comprises a light emitting element for irradiating the bottom of the object to be heated and a light receiving element for receiving the reflected light. . 5. The object to be heated presence / absence determining means includes a transmitter for transmitting a pair of ultrasonic waves provided above the heat-resistant glass and sandwiching the object to be heated, and a receiver for receiving the ultrasonic wave. The heating cooker according to claim 2. 6. The cooking device according to claim 2, wherein the object to be heated presence / absence determination means comprises a proximity sensor comprising two light emitting elements and one light receiving element on the upper side of the heat resistant glass. 7. The cooking device according to claim 2, wherein the object to be heated presence / absence determination means comprises a pressure sensor provided below the heat resistant glass. 8. An upper case integrated with a heat-resistant glass, and a lower case integrated with a stove portion having a heating element provided immediately below the heat-resistant glass, wherein the upper part of the case and the lower part of the case are connected via a spring. The cooking device according to claim 2, wherein the heat-resistant glass and the stove portion are abutted to each other, and a pressure sensor is provided below the heat-resistant glass. 9. The warning sound generating means is configured to generate a warning sound until the temperature of the heat-resistant glass drops to a predetermined temperature when the object to be heated is removed after the heating, and to change the tone of the warning sound. Item 9. The cooking device according to any one of items 2 to 8. 10. The cooking device according to claim 2, wherein the warning sound generating means has a manual switch for canceling the warning sound. 11. The cooking device according to claim 2, wherein the warning sound generating means has a backup function and generates a warning sound even when the power plug is unplugged from the outlet. 12. A warning sound generating means, wherein the temperature of the heat-resistant glass is 6
The cooking device according to any one of claims 2 to 11, wherein a warning is generated when the temperature exceeds 0C to 75C. 13. A high-temperature caution display unit having a glass plate on which a high-temperature caution mark for notifying that the heat-resistant glass is hot, and a lamp for irradiating the glass plate are provided. 2. The cooking device according to claim 1. 14. A high-temperature caution mark is clearly indicated substantially at the center of the heat-resistant glass, and a stove has a heating element, a guide cylinder facing the high-temperature caution mark, and a temperature sensor. A heating cooker that illuminates a high-temperature caution mark with a lamp provided on a lower bottom portion in the guide cylinder when the object to be heated is removed, and notifies that the heat-resistant glass is hot. 15. A stove having a heating element immediately below a heat-resistant glass, a temperature sensor built-in, and a high-temperature caution mark having a size substantially equal to the size of the stove is clearly indicated. A heating cooker that has a high power during heating, and illuminates the high-temperature caution mark with an extremely low power when the object to be heated is removed immediately after the completion of the heating to indicate that the heat-resistant glass is at a high temperature. 16. A stove part having a heating element immediately below a heat-resistant glass, a light-emitting element and a light-receiving element for detecting in a horizontal direction opposed to each other on an outer part, and a plurality of high-temperature warning display parts. A heating cooker in which the high-temperature caution display unit includes a lamp unit below the plate on which the high-temperature caution mark is clearly indicated, and sequentially illuminates the high-temperature caution mark in a scanning manner when the object to be heated is removed immediately after the end of heating. 17. A stove section immediately below a heat-resistant glass, a temperature sensor is provided, and a light-emitting element and a light-receiving element for detecting in a horizontal direction are provided on an outer side of the heat-resistant glass, and a plurality of display sections are provided. A heating cooker in which a display unit uses red and blue display lamps and a red lamp when the heat-resistant glass is hot immediately after the heating is completed, and a blue lamp when the temperature does not cause a burn when touched. 18. A high-temperature caution display unit provided with a temperature sensor on a stove immediately below the heat-resistant glass, a pressure sensor below the heat-resistant glass, and a high-temperature caution display on the outside. A heating cooker that includes a lamp and illuminates the entire cooker with the fluorescent lamp when the object to be heated is removed immediately after the end of heating, and notifies that the heat-resistant glass is hot. 19. A stove section immediately below the heat-resistant glass is provided with a temperature sensor, and a light-emitting element and a light-receiving element for detecting in the horizontal direction are provided on the outer side of the heat-resistant glass so as to face each other. The high temperature display unit includes a semicircular cover that is rotated by a motor concentrically with a central fixed lamp inside a red cap, and the patrol light is removed when the object to be heated is removed immediately after the end of heating. A cooking device that operates to indicate that the heat-resistant glass is hot. 20. The cooking device according to claim 14, wherein when the temperature of the heat-resistant glass exceeds 60 ° C. to 75 ° C., it is clearly indicated that the temperature is high.