CN216790248U - Three-needle ignition induction assembly and gas furnace end - Google Patents

Abstract

The utility model discloses a three-needle ignition induction assembly and a gas furnace end, wherein the three-needle ignition induction assembly comprises a ceramic tube, an ignition needle and an induction needle, wherein the ignition needle and the induction needle penetrate through the ceramic tube from top to bottom, the upper end of the induction needle is provided with a radial extension section which horizontally extends towards the radial outer side, a first spiral section which is connected with the tail end of the radial extension section and extends in a spiral manner, and a second spiral section which is connected with the tail end of the first spiral section and extends in a spiral manner, and the diameter of the second spiral section is larger than that of the first spiral section. According to the technical scheme, the flame induction device is provided with the first spiral section and the second spiral section which is located on the outer side of the first spiral section, so that the first spiral section can induce flames right above the central area, and the second spiral section can induce flames which are diffused to the outer side of the central area. Therefore, no matter the flame is small or large, the flame can be sensed by the sensing needle, and the precision of ignition sensing can be improved.

Description

Three-needle ignition induction assembly and gas furnace end

Technical Field

The utility model relates to the technical field of gas stoves.

Background

According to national gas stove standards, gas stoves are required to have a extinguishing and protecting function, so that the gas stoves are provided with more than two needles, more than one ignition needle and more than one induction needle. The ignition needle is mainly used for discharging and conducting pulsed high-voltage current to the top end of the ignition needle. The induction needle is mainly used for inducing the temperature (whether to burn) of the stove.

As shown in fig. 1, the gas furnace end includes an outer casing 2, a combustion chamber installed on the upper portion of the outer casing, the outer casing and the combustion chamber are matched to form a gas mixing cavity, the outer casing is provided with an air inlet and an air inlet, the combustion chamber includes a lower combustion chamber ring 3, an upper combustion chamber ring 4 and a fire pressing cap 5, the lower combustion chamber ring is installed on the lower combustion chamber ring, and the center of the lower combustion chamber ring is provided with an air outlet 32. An ignition induction component 1 is arranged in the outer shell, and the upper end of the ignition induction component 1 penetrates out of the central part of the lower ring of the combustion chamber. As shown in fig. 2, the ignition induction assembly 1 includes a ceramic tube 11, an ignition needle 12 and an induction needle 13, wherein the ignition needle penetrates the ceramic tube up and down, the upper end of the induction needle 13 in the prior art is of an approximately circular ring structure, the ignition needle ignites gas coming out of an air outlet, and flame temperature is induced by the structure at the upper end of the induction needle 13.

In use, it is found that when the flame is large, the flame is more deviated from the central area and is far away from the sensing pin 13, so that the sensing pin 13 cannot sense the flame temperature sensitively.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model aims to provide a three-pin ignition induction component which can improve the precision of ignition induction.

In order to solve the technical problems, the utility model adopts the following technical scheme: three-needle ignition induction component, including ceramic pipe, the ignition needle and the response needle that run through ceramic pipe from top to bottom, the upper end of response needle is equipped with radial extension section, the first spiral section that meets and be the spiral extension with the end of radial extension section and meets and be the second spiral section that the spiral extends with the end of first spiral section to radial outside level extension, the diameter of second spiral section is greater than the diameter of first spiral section.

Preferably, the first spiral section and the second spiral section are both in a single-circle structure, the first spiral section spirals upwards, and the second spiral section spirals downwards.

Preferably, the upper end of the ignition needle is provided with a horizontal bending section, and the height of the radial extension section is the same as that of the horizontal bending section.

Preferably, the upper end of the ceramic tube is provided with a cap-shaped part, and the top surface of the cap-shaped part is a conical surface.

Preferably, the ignition needle and the induction needle are made of alloy materials.

Preferably, the diameter of the ignition needle is 2mm, and the diameter of the induction needle is 2.6 mm.

Gas furnace end, including the shell body, install in the combustion chamber on shell body upper portion, the shell body constitutes with the combustion chamber cooperation and mixes the air cavity, the shell body is equipped with air intake and air inlet, the combustion chamber includes that the combustion chamber circles down, installs in the combustion chamber that circles down and encloses on circle and press the cap of angering, be equipped with in the shell body the three-needle ignition response subassembly.

The central authorities of circle are equipped with the tube-shape portion that upwards extends under the combustion chamber, the interior bottom surface of tube-shape portion is equipped with the venthole along circumference, first spiral section is located directly over the venthole place circumference position correspondingly, second spiral section is located directly over the lateral wall of tube-shape portion correspondingly.

According to the technical scheme, the flame induction device is provided with the first spiral section and the second spiral section which is located on the outer side of the first spiral section, so that the first spiral section can induce flames right above the central area, and the second spiral section can induce flames which are diffused to the outer side of the central area.

Furthermore, the first spiral section is correspondingly positioned right above the circumferential position of the air outlet hole and just corresponds to the position above the small flame, and the second spiral section is correspondingly positioned right above the side wall of the cylindrical part and just corresponds to the position where the large flame is dispersed to the outer side of the central area.

Therefore, no matter the flame is small or large, the flame can be sensed by the sensing needle, and the precision of ignition sensing can be improved.

The following detailed description and the accompanying drawings are included to provide a further understanding of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and the detailed description below:

FIG. 1 is a schematic view of a gas burner of the prior art;

FIG. 2 is a schematic diagram of a prior art ignition sensing assembly;

FIG. 3 is a schematic perspective view of an ignition sensor assembly according to the present invention;

FIG. 4 is a top view of the ignition sense assembly of the present invention;

FIG. 5 is a perspective view of a gas burner head according to the present invention;

FIG. 6 is a top view of the gas burner of the present invention;

in the figure: ignition induction component 1, ceramic tube 11, hat portion 111, ignition needle 12, response needle 13, radial extension section 131, first spiral section 132, second spiral section 133, shell body 2, combustion chamber lower circle 3, tube-shape portion 31, venthole 32, combustion chamber upper circle 4, cap 5.

Detailed Description

The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.

It will be appreciated by those skilled in the art that features from the examples and embodiments described below may be combined with each other without conflict.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example one

As shown in fig. 3 and 4, the three-pin ignition sensing assembly 1 provided by the present invention is disposed in the center of the combustion chamber, and includes a ceramic tube 11, an ignition pin 12 and a sensing pin 13 penetrating the ceramic tube from top to bottom, wherein the upper end of the sensing pin is provided with a radially extending section 131 extending horizontally to the outside in the radial direction, a first spiral section 132 connected to the end of the radially extending section and extending in a spiral shape, and a second spiral section 133 connected to the end of the first spiral section and extending in a spiral shape, and the diameter of the second spiral section is greater than the diameter of the first spiral section. The first spiral section is used for inducing flames right above the central area, and the second spiral section is used for inducing flames diverging to the outer side of the central area. Therefore, no matter the flame is small or large, the flame can be sensed by the sensing needle, and the precision of ignition sensing can be improved.

The first spiral section 132 and the second spiral section 133 are both of a single-turn structure, and the first spiral section spirals upwards and the second spiral section spirals downwards. Of course, both the first and second helical sections are located above the top end of the ceramic tube.

Further, a horizontal bending section is arranged at the upper end of the ignition needle 12, and the height of the radial extension section is the same as that of the horizontal bending section.

It is understood that other configurations of the three-pin ignition sensing assembly 1 can be found in the prior art. For example, the upper end of the ceramic tube is provided with a cap portion 111, the top surface of which is a tapered surface.

Preferably, the ignition needle and the induction needle are made of nickel alloy. The diameter of the ignition needle is 2mm, and the diameter of the induction needle is 2.6 mm.

Example two

As shown in fig. 1, 5 and 6, the gas furnace end includes an outer casing 2 and a combustion chamber installed on the upper portion of the outer casing, the outer casing and the combustion chamber are matched to form a gas mixing chamber, the outer casing is provided with an air inlet and an air inlet, the combustion chamber includes a lower combustion chamber ring 3, an upper combustion chamber ring 4 installed on the lower combustion chamber ring and a fire pressing cap 5, and a three-needle ignition induction assembly 1 according to the first embodiment is arranged in the outer casing.

The center of the lower ring of the combustion chamber is provided with a cylindrical part 31 extending upwards, and the inner bottom surface of the cylindrical part is provided with an air outlet 32 along the circumferential direction. The ignition needle ignites the gas coming out of the gas outlet hole, and the flame temperature is induced through the structure at the upper end of the induction needle 13.

As shown in fig. 5 and 6, the first spiral section 132 is located directly above the circumferential position of the air outlet 32 and directly above the low flame, and the second spiral section 133 is located directly above the tubular portion 31 and directly above the high flame to diverge to the outside of the central region.

In addition, other structures not described can refer to the first embodiment.

While the utility model has been described with reference to specific embodiments, it will be understood by those skilled in the art that the present invention may be practiced without limitation to such specific embodiments. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims (8)

1. The three-needle ignition sensing assembly comprises a ceramic tube, an ignition needle and a sensing needle, wherein the ignition needle and the sensing needle penetrate through the ceramic tube from top to bottom, and the three-needle ignition sensing assembly is characterized in that the upper end of the sensing needle is provided with a radial extension section which horizontally extends towards the radial outer side, a first spiral section which is connected with the tail end of the radial extension section and extends in a spiral mode, and a second spiral section which is connected with the tail end of the first spiral section and extends in a spiral mode, and the diameter of the second spiral section is larger than that of the first spiral section.

2. The three-wire ignition sensing assembly of claim 1 wherein the first and second helical segments are each of a single turn configuration with the first helical segment spiraling upward and the second helical segment spiraling downward.

3. The three-pin ignition sensor assembly of claim 2, wherein the upper end of the ignition pin is provided with a horizontally bent section, and the radially extending section is at the same height as the horizontally bent section.

4. The assembly of claim 1, wherein the ceramic tube has a cap at an upper end, the cap having a tapered top surface.

5. The three-wire ignition sense assembly of claim 1, wherein the ignition and sense pins are made of an alloy material.

6. The three-pin ignition sense assembly of claim 1, wherein the ignition pin has a diameter of 2mm and the sense pin has a diameter of 2.6 mm.

7. The gas furnace end, including the shell body, install in the combustion chamber on shell body upper portion, the shell body constitutes the air mixing chamber with the combustion chamber cooperation, the shell body is equipped with air intake and air inlet, the combustion chamber includes combustion chamber lower circle, installs combustion chamber upper circle and the cap of suppressing a fire on combustion chamber lower circle, its characterized in that, be equipped with the three-needle ignition response subassembly of any one of claims 1 to 6 in the shell body.

8. The gas furnace end of claim 7, wherein a cylindrical portion extending upward is disposed at the center of the lower ring of the combustion chamber, an air outlet is disposed at the inner bottom surface of the cylindrical portion along the circumferential direction, the first spiral section is correspondingly located right above the circumferential position of the air outlet, and the second spiral section is correspondingly located right above the sidewall of the cylindrical portion.

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