JPH0692819B2 - Burner device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a stove burner with a temperature sensor such as a gas table.

2. Description of the Related Art In a conventional gas table or the like, unlike a grill or an oven in which the temperature inside the baking oven is known, the temperature of the food to be cooked is unknown, so that the food is cooked by the intuition of the user. In addition, when cooking a meal such as tempura, there was a danger that the temperature of the oil would not rise and a fire could occur due to the carelessness of the cook. Therefore, a burner of a rice cooker having a temperature sensor in the central portion for detecting the temperature of the bottom of a pot containing a food item is considered as a device for a cook to cook better and safely. In the burner of this rice cooker, the heat shield that protects the temperature sensor from the flame heat of the burner is configured integrally with the burner, and in order to improve the heat effect from the burner and the supply of secondary air to the burner,
The diameter of the heat shield tube is considerably larger than the diameter of the temperature sensor.

Problems to be Solved by the Invention In the case of a gas rice cooker, since the container is fixed to a dedicated pan, the above-mentioned configuration may be used, but in the case of a gas table or the like, various pans are used for various dishes. As a result, the burning performance of the burner and the performance of the temperature sensor cause problems.

The present invention solves the above-mentioned drawbacks, and an object of the present invention is to improve the combustion performance of a stove burner with a temperature sensor and to improve the performance of the temperature sensor.

Means for Solving the Problems In order to achieve the above object, a stove burner according to the present invention has a temperature sensor installed at the center for detecting the temperature of a pot bottom, a burner cap having tooth-shaped flame holes, and one end. Has a mixing tube, the inner peripheral wall of the other end is fitted to the cylindrical portion of the burner cap, and the outer peripheral wall forms a flame hole with the tooth-shaped flame hole portion of the burner cap; -Shaped heat-shielding cylinder, and the heat-shielding cylinder is placed below the upper surface of the burner cap and above the lower surface of the burner cap with a gap between the upper surface of the burner cap and the upper surface of the burner cap. Place
Also, the temperature sensor is installed higher than the top surface of Gotoku.

Action The heat shield cylinder protects the temperature sensor from the ambient heat, and the secondary air is discharged from the gap on the upper surface of the burner cap to be cooled.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, the gas ejected from the nozzle 1 becomes a mixed gas while appropriately sucking air from the mixing pipe 3 at one end of the burner body 2, and the outer peripheral wall 2a at the other end of the burner body 2 and the tooth profile of the burner cap 4 are formed. Flame hole 5 formed by the flame hole portion 4a
Ejects more and burns by ignition. On the other hand, the inner peripheral wall 2b of the burner body 2 is fitted to the cylindrical portion 4a of the burner cap 4 to prevent the mixed gas from flowing out. Next, the temperature sensor 7, which is installed in the center of the burner body 2 with its tip higher than the upper surface of the Gotoku 6 detects the pot bottom temperature of the pot 8 placed on the Gotoku 6 and is connected to a control circuit to assist cooking. It works as a safety device to prevent overheating. (In FIG. 1, since the pot is placed, the tip of the temperature sensor 7 is lowered to the upper surface of the Gotoku 6 and is in contact with the pot bottom of the pot 8.) In order to improve the performance of the temperature sensor 7, A cylindrical heat shield cylinder 9 is provided around the temperature sensor 7 by mounting it on a plurality of stair-like projections 10 provided on the upper surface of the burner cap 4 at intervals of 120 ° and at the same time as the upper surface of the burner cap 4. A gap 12 is provided between them. Further, the heat shield cylinder 9 may be fixed to the burner cap 4 by providing a groove as shown in FIG. 2 and fitting the protrusion 10 on the upper surface of the burner cap 4 to fix the heat shield cylinder 9 to the burner cap 4. 11 is a soup saucer.

The operation of the above configuration will be described below.

In the stove burner with a temperature sensor thus configured, the temperature sensor 7 for detecting the temperature of the bottom of the pan 8 is protected from the external force because the surroundings are protected by the cylindrical heat shield tube 9, It is not affected by the heat of the burning flame of the burner. Further, since the heat shield cylinder 9 and the burner cap 4 are divided and a plurality of protrusions 10 form a gap 12 between the burner cap 4 and the upper surface of the burner cap, heat conduction from the burner cap 4 is also prevented. be able to. Therefore, the temperature sensor 7 is protected from the burner flame of the burner and the heat conduction of the burner cap, can correctly detect only the humidity of the bottom of the pot, and can improve its performance. on the other hand,
The diameter of the heat shield tube 9 can also be reduced, and a good effect can be obtained even with respect to uneven burning such as difficulty in burning the central portion.

Further, the secondary air at the time of combustion of the burner is supplied as shown by the arrow in FIG. 1, but the secondary air from the lower center of the burner is blocked by the temperature sensor 7 and the heat shield cylinder 9, Since the heat shield cylinder 9 and the burner cap 4 are installed with the gap 12 provided by the projection 10, the secondary air flows as shown by the arrow, the combustion performance is improved, and this secondary air flow causes the shield to flow. The heating cylinder 9 is cooled and has the effect of further improving the performance of the temperature sensor 7. Further, the upper end of the heat shield tube 9 is lower than the upper surface of the Gotoku 6 when the pot 8 has a convex bottom, the upper end of the heat shield tube 9 rises to make the pot 8 unstable. This is to prevent

As described above, according to the stove burner with a temperature sensor of the present invention, the heat shield cylinder that surrounds and protects the outer circumference of the temperature sensor is divided from the burner cap, and a gap is provided on the upper surface of the burner cap. Since the temperature sensor is installed in such a manner, the thermal effect on the temperature sensor can be prevented, the performance of the temperature sensor can be improved, and the flow of secondary air can be improved to improve the combustion performance.

[Brief description of drawings]

FIG. 1 is a sectional view of a stove burner with a temperature sensor according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the burner portion. 2 ... Burner body, 3 ... Burner body mixing tube, 4 ...
… Burner cap, 5 …… Burner hole, 6 …… Gotoku, 7
…… Temperature sensor, 8 …… pan, 9 …… heat shield, 10 ……
Protrusion.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Ueda 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Yoshio Akamatsu, 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Claims] 1. A temperature sensor for detecting the temperature of the bottom of a pot, a burner cap having tooth-shaped flame holes, a mixing tube at one end, and an inner peripheral wall of the other end fitted with a cylindrical portion of the burner cap. The outer peripheral wall includes a burner body forming a flame hole with the tooth-shaped flame hole portion of the burner cap, and a cylindrical heat shield cylinder arranged on the outer periphery of the temperature sensor. It is placed on the lower stage of a plurality of stair-like projections provided on the upper surface of the burner cap, a gap is provided with the upper surface of the burner cap, and the upper end surface is lower than the upper surface of Gotoku. Burner device set higher than the top surface.