JPH0645131Y2 - Burner for stove - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a burner for a stove.

(Prior Art) Conventionally, a central flame port is provided on the upper surface of an annular gas burner having a vertical cavity at the center and a main flame hole at the outer periphery, and secondary air is provided at the central flame port through the cavity. A stove burner adapted to supply the above is disclosed in Japanese Utility Model Laid-Open No. Sho 63-167027, and a temperature sensor for contacting the bottom of the cooker to detect the temperature of the container is provided above the void. Burner for octopus is also open 59
-188014 publication.

(Problems to be solved by the device) However, the fact that the central flame mouth faces upward is disclosed.
When a temperature sensor is incorporated in the No. 63-167027, the flame from the central flame port a is directly connected to the temperature sensor b as shown in FIG.
The temperature sensor b, which should originally detect the temperature of the bottom of the cooker, malfunctions by sensing the heat of the flame from the central flame mouth a. More specifically, in order to prevent the temperature sensor b from being heated by the flame as much as possible, the temperature sensor b is provided with a heat shield tube c, and cooling air is flown into the heat shield tube c to allow the temperature sensor b to be cooled. There is also known one which is not affected by the flame of the central flame mouth a as much as possible, but the inside of the heat shield cylinder c is provided between the upper end of the heat shield cylinder c and the bottom surface A of the cooker. A gap d for letting out the flowing cooling air must be provided, and the temperature sensor b is exposed from the heat shield cylinder c at this portion, and the temperature sensor b is affected by the flame at the central flame mouth a.

The purpose of the present invention is to obtain a cooking stove with a grill that does not have such a problem.

(Means for Solving the Problems) In order to achieve such an object, the present invention provides a central flame port on the upper surface of an annular gas burner having a vertical space in the center and a main flame hole on the outer periphery. Also, a temperature sensor is provided above the void to contact the bottom surface of the cooking device to detect the temperature of the container, and secondary air is supplied to the central flame outlet through the void. In this case, a convex portion is provided on the upper surface of the gas burner, and a central flame opening is provided at a side surface position of the convex portion lower than the temperature sensor so that the direction of the flame opening is substantially horizontal.

(Operation) In the stove burner having the above configuration, the convex portion is provided on the upper surface of the gas burner, and the central flame opening is arranged so that the direction of the flame opening is substantially horizontal at the side surface position of the protruding portion lower than the temperature sensor. Since the temperature sensor is provided, the temperature sensor is not directly heated by the flame, and the malfunction due to the temperature sensor being heated by the flame from the central flame mouth is eliminated.

(Embodiment) An embodiment of the present invention will be described with reference to FIGS. 1 to 4.

In the drawing, 1 is an annular gas burner having a vertical void 2 in the center and a main flame hole 3 in the outer periphery, 4 is a central flame port provided on the upper surface of the annular gas burner 1, and 5 is a void in the void 2. Upwards,
A temperature sensor for contacting the bottom surface A of the cooking device to detect the temperature of the container is shown, and the bottom surface A of the cooking device is indicated by the temperature sensor 5.
When a temperature above a certain temperature is detected, the opening degree of a solenoid valve (not shown) interposed in the gas passage for supplying gas to the gas burner 1 is controlled.

The void 2 functions as a secondary air passage.

In the present invention, the convex portion 8 is provided on the upper surface of the gas burner 1, and the central flame opening 4 is provided at a side surface position of the convex portion 8 lower than the position of the temperature sensor 5 so that the direction of the flame opening is substantially horizontal.
1 to 4, the gas burner 1 is provided with an annular gas distribution chamber 6 inside the main flame hole 3, and the annular gas burner is provided. On the upper surface of 1, three cylindrical convex portions 8 having a gas chamber 7 communicating with the gas distribution chamber 6 are projected at equal intervals in the circumferential direction, and the projections 8 face the circumferential direction of the annular gas burner 1. A horizontal through hole was provided on both side surfaces, and the through hole was used as the central flame port 4.

When the adjacent central flame ports 4 are relatively close to each other, the flames of the adjacent central flame ports 4 may interfere with each other to generate a yellow chip. To prevent this, as shown in FIG. 5, the horizontal through hole is provided only on one side surface of the annular gas burner 1 facing the circumferential direction, or, as shown in FIG. 6, the annular gas burner of the projection 8 is provided. The height positions of the through holes on both side faces facing the circumferential direction of 1, that is, the height position of the central flame port 4 may be shifted vertically.

In the above-mentioned embodiment, the central flame opening 4 is formed by providing the projection 8 with a circular through hole, but as shown in FIGS. 7 to 9, the projection 8 is provided with a slit hole to form the central flame opening 4. Is also good.

Although the central flame port 4 is provided on the side surface of the convex portion 8 facing the circumferential direction of the annular gas burner 1 in the above-mentioned embodiment, the void direction of the central flame port 4 is not necessarily limited to the side surface in this direction. Absent.

As shown in FIG. 1, the temperature sensor 5 is attached to the tip of the sensor rod 5a so as to face the bottom surface A of the cooking device.
The lower part of the gas burner 1 is extended to below the gas burner 1 and a spring 9 for bringing the temperature sensor 5 into close contact with the bottom surface A of the cooker is provided below the gas burner 1 and an additional member is provided near the temperature sensor 5. The temperature of the temperature sensor 5 is affected by the heat generated by the associated member receiving the combustion heat, and the heat affects the temperature sensor 5. I tried not to malfunction.

1 to 3, reference numeral 10 denotes a heat shield tube of the temperature sensor 5, and the heat shield tube 10 is used when the temperature sensor 5 is in close contact with the bottom surface A of the cooker. The cooling air flowing through the inside of the heat shield tube 10 is allowed to flow out by installing a constant gap B between the bottom surface A and the bottom surface A.

At this time, the flame from the central flame port 4 is oriented horizontally at a position lower than the temperature sensor, and the flame causes the temperature sensor 5 to move.
Since the temperature sensor is not directly heated, the malfunction due to the temperature sensor being heated by the flame from the central flame mouth is eliminated.
Moreover, as a result of providing the central flame opening so as to be substantially horizontal, it is possible to prevent the spilled juice from entering the central flame opening. It goes without saying that the present invention can also be applied to a model without the heat shield tube 10.

(Effects of the Invention) As described above, according to the present invention, the convex portion is provided on the upper surface of the gas burner, and the central flame opening is provided at a side surface position of the convex portion lower than the temperature sensor so that the direction of the flame opening is substantially horizontal. Therefore, the temperature sensor is not directly heated by the flame from the central flame mouth, and the malfunction due to the temperature sensor being heated by the flame from the central flame mouth is prevented. As a result of providing the mouth, there is an effect of preventing spilled juice from entering the central flame mouth.

[Brief description of drawings]

FIG. 1 is a cutaway side view of an embodiment of the present invention, FIG. 2 is a perspective view of an essential part, FIG. 3 is a plan view, FIG. 4 is a partial perspective view thereof, and FIGS. Shows a modified example corresponding to FIG. 4, and FIG. 10 is a cutaway side view showing a conventional example. 1 ... Gas burner, 2 ... Vacancy 3 ... Main flame mouth, 4 ... Central flame mouth 5 ... Temperature sensor

Claims (1)

[Scope of utility model registration request] 1. A central flame port is provided on the upper surface of an annular gas burner having a vertical cavity at the center and a main flame hole at the outer periphery,
Also, a temperature sensor is provided above the void to contact the bottom surface of the cooking device to detect the temperature of the container, and secondary air is supplied to the central flame outlet through the void. In the above burner for a stove, a convex portion is provided on the upper surface of the gas burner, and a central flame nozzle is provided at a side surface position of the convex portion lower than the temperature sensor position so that the flame nozzle is oriented substantially horizontally.