JP2000193238A - Heating condition display for gas range or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the user recognize the condition of a gas range, a stove, or the like being ignited. SOLUTION: The condition of a gas range used for cooking in kitchen or a kerosene or gas stove or the like used for heating being ignited is converted into light, vibration, or the like, and is displayed to let the cooker or the user know it. For example, an alarm control circuit 15 is turned on or turned off by comparing the voltage detected with a temperature detection means 12 such as thermistor, an infrared ray sensor, or the like with the voltage generated with a reference voltage setting circuit 13 by a voltage comparison circuit 14. Alarm sound generated in an alarm signal transmission circuit 16 is amplified with an amplifying circuit 17, and it is pronounced with a speaker 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

In particular, it is an object of the present invention to improve the handling of a heating device used for heating, cooking, and the like in facilities in a general household.

[0002]

2. Description of the Related Art Conventionally, there has been no device that actively displays and warns a user of a state in which a heating device such as a gas range is heating. On the other hand, when the gas range is heated and the flame goes out on the way due to spills or when it is not completely ignited, the gas is shut off by a solenoid valve or the like to prevent the gas from escaping. However, this device prevented the gas from flowing out when the fire was extinguished from the ignited state.

[0003]

However, it has not been possible to warn a user of an empty cooking state or a heating state.

[0004]

In order to solve the above-mentioned problems, the present invention constantly monitors the state of heating of a stove or stove and converts the state into light, sound, vibration, or the like, and provides the user with the information. It is a warning.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention combines a means for constantly detecting the state of heating of a stove or stove with a means for converting the state into light, sound, vibration, etc. The user can confirm the ignition state by light, sound, vibration, or the like.

[0006]

Embodiment 1 FIG. 2 is a diagram showing details of a heating state display device such as a gas range. Is a heat conductor that conducts heat in the heated state of the range. Is a thermistor which is a heat change detecting means for receiving conducted heat. Is Kapton tape which is an insulating means. Is an asbestos that adheres the thermistor to the Kapton tape, improves the heat conduction from the heat conductor, and prevents it from burning with the flame of the oven. Is a glass epoxy substrate.
Is a cover that protects the thermistor wiring and the glass epoxy substrate. Is a concave portion integrated with the protective cover, and is a convex portion integrated with the magnet. Is a cover of a board on which a circuit for converting a change in the resistance value of the thermistor with a power supply into light or sound is assembled.

FIG. 1 shows a state in which the present invention is assembled in a gas range. {Circle around (10)} indicates a gas range. {Circle around (11)} indicates a heating state display device such as a gas range of the present invention. The heat conductor shown in FIG. 1 is located near the combustion hole of the gas range {10}, and is adsorbed to a part of the gas range by a magnet so that the heat generated by the burning gas can be transmitted to the thermistor. And the height is adjustable by bending the engaging portion between the concave portion and the convex portion. When the gas range is ignited, the thermistor is heated through the heat conductor. Then, the resistance value of the thermistor changes, and when the change in the resistance value exceeds a certain value, a combination of a switching element and a transistor (not shown) assembled on the substrate makes the light emitting element (LED), buzzer, sounding element, or vibrating body. Supply power and operate.

FIG. 3 is a block diagram showing the present invention. Voltage detected by temperature detecting means (12) such as thermistor or infrared sensor and reference voltage setting circuit (13)
By comparing the voltage generated in step (1) with the voltage comparing circuit (14), the alarm control circuit (15) is turned on and off. The alarm sound generated by the alarm signal transmission circuit (16) is amplified by the amplifier circuit (17) and is emitted by the speaker (18).

[0009]

[Embodiment 2] In FIG. 4, a radio wave transmitting circuit (19) is provided in place of the speaker (18) in FIG. 3, and a temperature change is converted into power switching and transmitted. On the other hand, the user carries the receiver (20). The receiver (20) receives the alarm signal at the radio wave receiving circuit 21 , amplifies the signal at the amplifier circuit 22 , and emits the sound through the speaker 23 . Therefore, even if the user is away from the site, the user can know the temperature change from the display and the vibration received by the receiver (20).

[0010]

Embodiment 3 FIG. 5 shows an adapter for the heat conductor in FIG.
24 is obtained by allowing a fixed additional scissors with screws 25. The tip of the adapter 24 can be easily deformed, and can be used after being deformed into an appropriate shape depending on the position and shape of the heat source to be brought close.

[0011]

[Embodiment 4] FIG. 6 is an external view of the temperature detecting means in FIG. 3 comprising an infrared sensor 26 provided on a substrate integrated with an alarm oscillation circuit. As in FIG. 2 of the first embodiment, the apparatus is configured such that the apparatus is fixed with a magnet and the direction and height can be adjusted with a combination hinge of unevenness. In addition, a cylindrical portion 27 that can move back and forth is provided on the front surface of the light receiving portion of the infrared sensor 26 . This cylindrical part 2
7 has a structure in which the sensitivity field of view can be adjusted by being shifted back and forth (FIG. 7). As another structure for adjusting the sensitivity field of view, a structure having a diaphragm mechanism capable of changing the size of the hole on the front surface of the light receiving unit may be provided similarly to the diaphragm of the camera. If the sensitivity field of view can be adjusted in this way, when the field of view is wide, a plurality of heating elements can be monitored, and a specific heating element can be selectively monitored.

In these embodiments, a thermistor is used as a contact-type temperature sensor, but a resistance temperature detector (commonly known as an RTD sensor) or a thermocouple (commonly called a thermocouple) that generates electric power based on a temperature difference may be used. . In other embodiments, an infrared sensor is used as a non-contact type temperature sensor, but an optical fiber thermometer or the like may be used. Further, although a simple alarm signal is sounded using a speaker as a means to warn the user, sound previously recorded in an LSI or the like may be used instead of the alarm signal. Alternatively, a light emitting body such as an LED may be used, or a vibrating body may be used as long as the user carries it as shown in FIG. Further, a plurality of these warning means may be combined. Further, in all of these embodiments, the heating device is described as a structure to be retrofitted thereto, but may be incorporated in the heating device in advance.

[0013]

As described above, by adding, to the gas range, a gas range used for cooking in a kitchen, oil and a gas stove used for heating, and a device for displaying a state in which a gas stove or the like is ignited by sound or light. It warns the user and the user and has the effect of preventing empty cooking due to forgetting to turn it off.

[Brief description of the drawings]

FIG. 1 is a perspective view of a heating state display device assembled to a stove.

FIG. 2 is a sectional view of a heating state display device assembled to a stove;

FIG. 3 is a block diagram of a circuit.

FIG. 4 is a block diagram of a circuit including a transmission / reception unit.

FIG. 5 is an additional view of an adapter for a heat conductor.

FIG. 6 is an external view of a heating state display device using an infrared sensor.

FIG. 7 is an explanatory diagram of adjusting a sensitivity visual field.

[Explanation of Signs] Heat Conductor Thermistor Glass Epoxy Substrate ▼ 10 Gas Range １１11 Heating Status Display Device １２12 Temperature Detection Means １３13 Reference Voltage Setting Circuit １４14 Voltage Comparison Circuit １５15 Alarm Control Circuit -16 Alarm signal transmission circuit -17 Amplifier circuit -18 Speaker -19 Radio wave transmission circuit -20 Receiver 22 Amplifier circuit 23 Speaker 24 Adapter 26 Infrared sensor 27 Cylindrical part

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F24C 3/12 F24C 3/12 V F24H 3/02 301 F24H 3/02 301Z

Claims (6)

[Claims] The present invention relates to a gas range installed in a kitchen or a heating device such as a gas stove used for heating, a buzzer or a melody or the like, or a light emitting device such as an LED. Blinks or lights up.
A heating state warning display device, which converts a vibration into vibration or the like or uses these display means in combination to warn a user of the state of heating to warn the user. 2. An apparatus according to claim 1, wherein said means for conducting heat in a heating state of said range, a heat change detecting means for receiving the conducted heat, and a change in resistance value of said heat change detecting means are electrically turned on.
Means for converting to ON, and electrical ON-OFF,
A heating state warning display device characterized by converting into sound, light or vibration. 3. A heating state warning display device according to claim 1, wherein said heat change detecting means comprises a thermistor whose electric resistance value changes. 4. A heating state warning display device according to claim 1, wherein said heat change detecting means comprises an element for detecting infrared rays. 5. A heating state warning display device, wherein a detection range and a direction of the infrared ray detecting element can be adjusted. 6. The apparatus according to claim 1, wherein the electric ON-OF is provided.
Means for converting the F signal into light such as radio waves, ultrasonic waves or infrared rays and transmitting the same, and receiving the transmitted signal, displaying the sound with a buzzer or a melody, or blinking with a light emitting device such as an LED, or A heating state warning display device including a lighting device and a receiving device for converting into a vibration.