JPH01273920A - Gas kitchen range - Google Patents

Abstract

PURPOSE:To perform simple and proper heat insulating after cooking, by providing a temperature control means which detects the temperature of a substance to be heated and controls energization of an electric heater according to a detecting temperature. CONSTITUTION:The outer periphery of an electric heater 8 is covered with castings. A temperature detecting element 12 is mounted to the upper end of an actuating lever 14 inserted in a through-hole 13 formed in the central part of a gas burner 1. When the temperature of a substance to be heated is decreased to a value lower than a given value, the electric heater 8 is energized through a relay contact 23A and a heat insulation switch 19, and a pot 5 and the like is heated to perform heat-insulation thereof. Thereafter, since the electric heater 8 is intermittently energized according to the detecting temperature of the temperature detecting element 12, the temperature of the substance to be heated is maintained at a proper value, and useless energization to the electric heater 8 is prevented from occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to a gas stove used for heating pots and the like for boiling.

(b) Conventional technology Conventionally, in this type of gas stove as disclosed in Utility Model Publication No. 63-6572, for example, a large amount of heat is obtained by maximizing the amount of gas combusted. can be done in a very short time. However, even if the combustion amount is reduced by restricting the amount of gas, the amount of heat generated cannot be significantly reduced, so this method is not suitable for keeping miso soup or the like warm. Also, if the amount of gas was reduced too much, the flame would go out, which was extremely dangerous.

Furthermore, stoves using electric heaters have a small calorific value and are suitable for keeping warm, but are disadvantageous for things such as simmering.

(c) Problems to be solved by the invention This invention has been made in view of the above-mentioned facts.
To enable quick cooking such as simmering, and to easily and appropriately keep warm after cooking.

(d) Means for Solving the Problems This invention includes a gas burner, a mounting table on which an object to be heated such as a pot heated by the burner is placed, an electric heater provided on this mounting table, and an object to be heated. This configuration includes temperature control means for detecting the temperature of the electric heater and controlling energization of the electric heater according to the detected temperature.

Further, the temperature control means is configured to include a temperature detection element that is energized toward the object to be heated.

(E) Function With this configuration, the object to be heated can be heated by a gas burner with a large calorific value, and cooking such as simmering can be completed in a short time, and after cooking, the temperature control means controls the energization of the electric heater. However, it is possible to keep the heated object at an appropriate temperature without having to transfer it to an electric stove or the like.

Further, by biasing the temperature detection element toward the object to be heated, accurate temperature detection of the object to be heated can be performed.

(f) Example Hereinafter, embodiments of the present invention shown in the drawings will be described.

In Figures 1 and 2, (1) is a gas burner, and this burner (1) has a flame opening (IA) at the top and a knob (
2) is operated, the gas valve (3) and the gas stove 4) are opened, and the igniter (not shown) is activated to form a combustion flame from the flame port (IA), which is used as an object to be heated. It heats the bottom surface of the pot (5), etc.

(6> is the mounting hole (7A) provided in the top plate (7)
Insert the lower end protrusion (6A) (6A>) into (7A),
In addition to fixing its position, there is a cutout at the top (6B)
This is a stand for placing a trivet or the like on which an electric heater (8) is attached. The electric heater (8>) has its outer periphery covered with a casting or the like to reinforce its strength, and is housed in the notch (6B) so that its top surface is flush with the top surface of the mounting table. (9) (9) is a lead wire with one end connected to the electric heater (8), and the other end is a connector (1
0) to a control device (11) which also serves as temperature control means. (12) is a temperature detection element such as a thermistor that presses into contact with the bottom surface of the pot (5), and this temperature detection element (12) is a through hole (1) provided in the center of the gas burner (1).
3) is attached to the upper end of the operating rod (14) inserted through it. The operating rod (14) has a flange (15) in the middle, and is loosely fitted into a partition plate (16) below the flange (15). In addition, a flange (15) and a partition plate (16)
) A spring (17) is inserted into the through hole (13) between the temperature sensing element (12) and the operating rod (14), so that the temperature sensing element (12) and the operating rod (14) are always urged upward. In addition, a temperature detection element (12)
is connected to the control device (11>) via a lead wire (18) inserted into the operating rod (14).
) is a heat retention switch provided on the front together with the knob (2>).

FIG. 3 shows the control device (11) for the gas stove mentioned above.

In Fig. 3, (20) is a power supply for the membrane surface, <R1) or R7) is a resistor, (21) is a comparator, (22) is a transistor, (23) is a relay, and (23A) is a relay (
23) is a normally open relay contact, (24) is a DC power supply terminal, (
25) and (26) are DC constant voltage terminals.

In the embodiment described above, the knob (2) is operated to burn gas in the gas burner (1), and the object to be heated such as the pot (5) is heated with a high combustion amount to perform cooking such as simmering. . When cooking is finished, operate the knob (2) to stop gas combustion, and turn the heat retention switch 19) to the input side to close the circuit.

Immediately after finishing cooking, the temperature of the heated item is high and the comparator (
21) is L'' and the transistor (22) is turned off, the relay (23> is de-energized and the electric heater (8) is not energized.

After that, when the temperature of the heated object becomes lower than the predetermined temperature, the output of the comparator (21) becomes "H", and the output of the transistor (21) becomes "H".
2) is turned on, the electric heater (8) is energized via the relay contact (23A) and the heat retention switch (19) to heat the pan (5) and keep it warm.

Thereafter, the electric heater (8) is intermittently energized according to the temperature detected by the temperature detection element (12), so that the object to be heated is maintained at an appropriate temperature and waste is not applied to the electric heater (8). energization is prevented.

In addition, in the embodiments described above, the resistance (R1) and the resistance (R
By changing or making variable the resistance value of 5), it is possible to arbitrarily set the on-temperature and off-temperature of the electric heater (8). Alternatively, a bimetal thermostat may be used as the temperature control means, and the energization of the electric heater (8) may be directly controlled by the bimetal thermostat.

Moreover, since the temperature detection element (12) is biased toward the object to be heated, it is possible to accurately detect the temperature of the object to be heated placed on the mounting table (6), and the temperature of the object to be heated placed on the mounting table (6) can be accurately detected. It can also be used to control the amount burned during cooking.

(G) Effects of the Invention Since the present invention is configured as described above, cooking such as simmering can be quickly performed using a gas burner with a large calorific value, and the heated object can be heated after cooking is completed. It can be heated directly with the electric heater and kept at the appropriate temperature without transferring to another electric heating appliance, making it easy to use and preventing unnecessary energization of the electric heater, making it highly economical. There is.

Furthermore, by biasing the temperature detection element toward the object to be heated, the temperature of the object to be heated can be accurately detected regardless of the shape of the object.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a gas burner showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line II' in FIG. 1, and FIG. 3 is an electric circuit diagram of a control device that also serves as temperature control means. . (1)... Gas burner, (5)... Pot (item to be heated)
,(6)...fi[? 1 unit, (8)... Electric heater, (11)... Control device (temperature control means), (
12)...Temperature detection element.

Claims (2)

[Claims] (1) A gas burner, a mounting table on which the object to be heated such as a pot heated by the burner is placed, and an electric heater installed on this mounting table, which detects the temperature of the object to be heated and responds according to the detected temperature. and temperature control means for controlling energization of the electric heater. (2) The gas stove according to claim 1, wherein the temperature control means has a temperature detection element biased toward the object to be heated.