JPH0581805B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a cooking device that detects the side temperature of a cooking vessel and controls the firepower of a heat source.

(Prior Art) Conventionally, some heating cooking apparatuses, such as gas stoves, have a structure in which a movable part containing a built-in contact type temperature sensor is disposed approximately in the center of a burner head of a gas burner. This movable part is supported by the support part via a spring member so as to protrude above the upper surface of the trivet on which a pot or the like is placed.

When the pot is placed on the trivet, the tip of the movable part is brought into close contact with the bottom of the pot by the spring force, and the temperature of the bottom of the pot is detected by the contact temperature sensor, and the firepower is adjusted accordingly. The gas supply is now controlled. However, with such gas stoves, when cooking, boiled over boiling, oily smoke, etc. can get stuck, and the contact temperature sensor may stop working, so it is necessary to keep it clean at all times.
It is time-consuming and can be damaged if hit by a pot or other object, and the moving part must be in close contact with the bottom of the pot to accurately detect the temperature, so only those with a flat bottom are effective. There are various inconveniences such as. Therefore, recently, a gas stove has been devised that indirectly detects the side temperature of the pot using a non-contact temperature sensor and controls the gas supply to adjust the heating power.

(Problem to be Solved by the Invention) However, when gas is supplied to the gas burner to the maximum extent, a large flame is generated from the flame hole of the burner head. For this reason, the flame reaches from the bottom of the pot to the sides, and the non-contact type temperature sensor detects the temperature of the flame, indicating an abnormal condition and cutting off the gas supply, thereby interrupting the cooking process.

The present invention has been made in view of this problem.

(Means for Solving the Problems) In order to solve the above problems, the present invention has a burner head of a gas burner exposed on the top surface of the casing, and a cooking vessel for heating and cooking at one end of the top surface of the casing. A non-contact type temperature sensor for detecting side temperature is provided at a distance from the burner head, and the opening area of the flame hole of the burner head at a position opposite to the non-contact type temperature sensor is set to another position. The opening area of the flame hole is made smaller than that of the flame hole formed.

(Function) According to the present invention, even if the gas supply is maximized,
Since the opening area of the flame hole at the position facing the non-contact temperature sensor is smaller than the opening area of the flame hole formed at other positions, the flame hole at the position facing the non-contact temperature sensor The flame from the hole is suppressed to a small size and is prevented from reaching the side of the cooking vessel. Therefore, the non-contact temperature sensor can accurately detect the side surface that is the detection target of the non-contact temperature sensor, and malfunctions are prevented.

(Example) Next, regarding the heating cooking device according to the present invention,
One embodiment will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 indicates a heating cooking device;
In other words, it shows a gas stove, and this gas stove 1
The burner head 4 of the gas burner 3 is mounted on the top surface of the housing 2.
A non-contact temperature sensor 6 for detecting the side temperature of the pot 5, which is an exposed cooking vessel.
is a protrusion 7 formed at one end of the upper surface of the housing 2.
located within. The non-contact temperature sensor 6 may be a thermopile, which is a thermal sensor, or may be any other known sensor. The protruding portion 7
An opening 8 is formed to detect the temperature of the side surface near the bottom 9 of the pot 5. Furthermore, within the housing 2, a control circuit unit 10 is provided that introduces a detection signal from the non-contact temperature sensor 6 and outputs various operation control commands.

The gas burner 3, as shown in FIG. 2a,
It is divided into a mixing tube 11 and a burner head 4.

The burner head 4 has a circular shape and is mounted on the mixing tube 11, and the burner head 4 has protrusions 13 on its circumferential surface to define flame holes 12 radially and at equal intervals with the mixing tube 11. will be provided. Further, on the upper surface of the burner head 4, that is, on the surface facing the bottom 9 of the pot 5, a flame port 14 for emitting a flame is formed in a vertically upward direction. Among the flame holes 12 of the burner head 4, the opening area of the flame hole 12 at a position facing the non-contact temperature sensor 6 is as follows:
The opening area of the flame hole 12 is formed to be smaller than that of the flame hole 12 formed at other positions. That is, Fig. 2b
As shown in , the height A of the protrusion 13 for defining the flame hole 12 at the position facing the non-contact temperature sensor 6 is compared with the height B of the protrusion 13 at other positions, The burner head 4 is formed thick so that A<B.

According to this burner head 4, even if the gas supply is maximized, the opening area of the flame hole 12 at the position facing the non-contact temperature sensor 6 is smaller than the opening area of the flame hole 12 formed at other positions. Since the flame is small, the flame from the flame hole 12 located opposite to the non-contact temperature sensor 6 is suppressed to a small size and is prevented from reaching the side of the pot 5 for cooking. Therefore, the non-contact temperature sensor 6 can accurately detect the side surface that is the detection target of the non-contact temperature sensor 6, and malfunctions are prevented.

In addition, in this Example, although the gas stove 10 was mentioned and demonstrated, it is applicable also to other heating cooking apparatuses.

(Effects of the Invention) As described above, according to the present invention, even if the gas supply is maximized, the opening area of the flame hole at the position facing the non-contact temperature sensor is the same as the opening area of the flame hole formed at other positions. Since the flame is small compared to the non-contact type temperature sensor, the flame from the flame hole located opposite to the non-contact temperature sensor is suppressed to a small size and is prevented from reaching the side of the cooking vessel. Therefore, the non-contact temperature sensor is
It becomes possible to accurately detect the side surface to be detected by the non-contact temperature sensor, and malfunctions are prevented.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of the heating cooking device according to the present invention, Fig. 2a is an enlarged perspective view of a burner head applied to the heating cooking device shown in Fig. 1, and Fig. 2b is shown in Fig. 2a. FIG. 3 is a plan view showing the attachment surface of the burner head and the mixing tube. 1... Gas stove, 2... Housing, 3... Gas burner, 4... Burner head, 5... Pot, 6...
Non-contact temperature sensor combustion port back guard part, 7...
...Protrusion, 8...Opening, 9...Bottom, 10...
Control circuit section, 11... Mixing tube, 12... Flame hole, 1
3... Protruding portion, 14... Burning mouth, A, B... Height.

Claims (1)

[Claims] 1. The burner head of the gas burner is configured to be exposed on the upper surface of the housing, and a non-contact type temperature sensor for detecting the side temperature of the cooking vessel is provided at one end of the upper surface of the housing, separated from the burner head. Among the flame holes of the burner head, the opening area of the flame hole at a position facing the non-contact temperature sensor is made smaller than the opening area of flame holes formed at other positions. Heating cooking device.