JPS61190219A - Burner device - Google Patents

Abstract

PURPOSE:To improve combustion performance of a burner and improve performance of a temperature sensor by a method wherein the temperature sensor is protected from the heat in circumference by a heat shield cylinder and is cooled by the secondary air discharged out of the clearance of a burner cap upper surface. CONSTITUTION:The circumference of the temperature sensor detecting the bottom temperature of a pan 8 is protected by the heat shield cylinder 9 of a cylinder shape and is protected from outer power while the heat affection due to the combustion flame of the burner is removed. The heat shield cylinder 9 and the burner cap 4 are separated and the clearance 12 is formed by the plurality of projections 10 while heat transfer from the burner cap 4 is prevented. According to this method, the temperature sensor 7 is protected from the combustion flame and the heat transfer of the burner cap, then the temperature of the pan bottom only is detected, therefore, the performance is improved. The combustion performance is improved by the inflow of the secondary air (a) from the clearance 12 due to the projection 10 during burner combustion. The heat shielding cylinder 9 is cooled by the inflow thereof, further, the performance of the temperature sensor 7 may be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a stove burner with a temperature sensor, such as a gas staple.

2. PRIOR TECHNOLOGY With conventional gas staples, etc., unlike grills and open ovens where the temperature inside the baking chamber is known, the temperature of the food being cooked is unknown, so the user has to cook based on his or her intuition. In addition, when cooking tempura or the like, there was a danger that the temperature of the oil would rise due to the cook's carelessness and cause a fire. Therefore, a burner for a rice cooker that has a temperature sensor in the center that detects the temperature of the bottom of the pot containing food is being considered as a device that allows cooks to cook better and more safely. In the burner of this rice cooker, the heat shield cylinder that protects the temperature sensor from the flame heat of the burner is constructed integrally with the burner, and in order to improve the heat influence from the burner and the supply of secondary air to the burner,
The diameter of the heat shield cylinder 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, the container is fixed to a special pot, so the above-mentioned configuration is acceptable, but in the case of a gas rice cooker, various dishes can be cooked in different pots. Because it is carried out, burner combustion performance and temperature sensor 3,,.

performance problems occur.

The present invention solves the above-mentioned drawbacks, and aims to improve the combustion performance of a stove burner equipped 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, the stove burner of the present invention includes a temperature sensor installed in the center to detect the temperature at the bottom of the pot, a burner cap having a tooth-shaped flame hole, and one end. has a mixing tube, an inner circumferential wall at the other end fits into the cylindrical portion of the burner cap, an outer circumferential wall forms a flame hole with the tooth-shaped flame hole portion of the burner cap, and a burner body having a cylindrical shape. The heat shielding cylinder is mounted on the lower step of a plurality of stair projections provided on the upper surface of the burner cap, with a gap between the upper surface of the burner cap and the upper surface of the trivet, and lower than the upper surface of the trivet. Further, the temperature sensor is installed higher than the top surface of the trivet.

Function: The heat shield cylinder protects the temperature sensor from the surrounding heat, and secondary air is still discharged from the gap on the top surface of the burner cap to cool it.

EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings.

In FIG. 1, the gas ejected from the nozzle 1 becomes a mixed gas while sucking air moderately from the mixing tube 3 at one end of the burner body 2, and the toothed shape of the outer peripheral wall 2a at the other end of the burner body 2 and the burner cap 4. The flame is ejected from the flame hole 5 formed by the flame hole portion 4a, and is ignited to burn. On the other hand, the inner peripheral wall 2b of the burner body 2 is connected to the cylindrical portion 4a of the burner cap 4.
This prevents the mixed gas from leaking out. Next, a temperature sensor 7 installed in the center of the burner body 2 with its tip higher than the top surface of the trivet 6 detects the bottom temperature of the pot 8 placed on the trivet 6 and connects it to the control circuit to help with cooking. Works as a safety device to prevent overheating.

(In FIG. 1, the tip of the pot temperature sensor 7 with a pot on it descends to the top surface of the trivet 6 and contacts the bottom of the pot 8.) In order to improve the performance of this temperature sensor 7,
A cylinder 5 is placed around the temperature sensor 7.

A heat insulating cylinder 9 having a shape of 12
A gap 12 is provided between the burner cap 4 and the upper surface of the burner cap 4. Furthermore, the insulation cylinder 9 may be fixed to the burner cap 4 by providing a groove as shown in FIG. 2 and fitting it with a projection 10 on the upper surface of the burner cap 4. 11 is a soup saucer.

The operation of the above configuration will be explained below.

In the stove burner with a temperature sensor configured in this way, the temperature sensor 7 that detects the temperature at the bottom of the pot 8 is surrounded by a cylindrical heat insulating tube 9, so that it is protected from external force, and It is not affected by heat from the combustion flame of the burner. Further, since the heat shielding tube 9 and the burner camp 4 are divided, and a gap 12 is formed between the heat insulating tube 9 and the burner camp 4 and the upper surface of the burner cap by a plurality of protrusions 10, heat conduction from the burner cap 4 is also prevented. be able to.

Therefore, the temperature sensor 7 is protected from the combustion flame of the burner and the heat conduction of the burner cap, and can accurately detect only the humidity at the bottom of the pot, thereby improving its performance. On the other hand, the diameter of the heat shielding cylinder 9 can also be made small, and a good effect can be obtained against uneven baking such as difficulty in baking in the center.

Furthermore, the secondary air during burner combustion is supplied as shown by the arrow in FIG. Since the heat cylinder 9 and the burner cap 4 are installed with a gap 12 formed by the protrusion 10, the secondary air flows as shown by the arrow, improving the combustion performance, and due to the flow of the secondary air, The heat shield cylinder 9 is cooled and has the effect of further improving the performance of the temperature sensor 7.

Furthermore, the reason why the upper end of the heat exchanger cylinder 9 is raised from the upper surface of the trivet 6 is that if there is a convexity on the bottom of the pot 8, the convexity rises up on the upper end of the heat exchanger cylinder 9, making the pot 8 unstable. The only thing you can do is prevent it from happening.

As described in detail, according to the stove burner with a temperature sensor of the present invention, the heat shielding cylinder that surrounds and protects the temperature sensor is separated from the burner cap, and the burner cap is attached to the upper surface of the burner cap. Since it is configured to be installed with a gap, it is possible to prevent thermal influence on the temperature sensor, improve the performance of the temperature sensor, and improve the flow of secondary air to improve combustion performance.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a stove burner equipped with a temperature sensor, which is an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the burner section. 2... Burner body, 3-... Burner body mixing tube, 4... Burner cap, 5-...
・Burner flame hole, 6...Trivet, 7...Temperature sensor, 8...Pot, 9...Shathering tube, 10... protrusion.

Claims (1)

[Claims] It has a temperature sensor that detects the temperature of the bottom of the pot, a burner cap that has a tooth-shaped flame hole, a mixing tube at one end, an inner circumferential wall at the other end that fits into the cylindrical part of the burner cap, and an outer circumferential wall. The burner body includes a burner body that forms a flame hole with the tooth-shaped flame hole portion of the burner cap, and a cylindrical heat shielding tube disposed around the outer periphery of the temperature sensor, and the heat shielding tube is provided on the upper surface of the burner cap. It is placed on the lower stage of the plurality of step-like protrusions provided, and a gap is provided with the top surface of the burner cap.
The burner device has an upper end surface lower than the top surface of the trivet, and a tip of the temperature sensor is set higher than the top surface of the trivet.