JPH01142308A - Burner for portable cooking stove - Google Patents

Abstract

PURPOSE:To improve the external appearance and prevent the deterioration of thermocouples and the like due to boiling over by providing a recessed section which contains thermocouples in the main body of burner for portable cooking stoves and installing a protection plate over the main body of the burner. CONSTITUTION:A burner body 6 forms a mixing chamber 6A between a fitting cylinder member 6a and a ring-shaped shell member 6b. It also forms notch- shaped recessed members 62 and 62a, which contain thermocouples 10 and spark electrodes 9 on the ring-shaped surface 63. Protruding strips 7A, which form a row of lame ports 13 are provided on the rear of a burner cap 7. Recessed members 7a and 7b are formed in a place which is equivalent to the recessed members 62 and 62a. A protection plate 90 is slightly larger in size than the burner cap 7 and are fitted in by way of a spacer. This construction makes it possible to receive what is boiled over from a cooking pan on the protection plate 90, thereby avoiding boiling over to said thermocouples 10 or electrodes 9.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to the improvement of burners, and particularly relates to burners for stoves equipped with thermocouples for detecting the ignition state, spark electrodes for ignition, etc. .

[Prior Art] A burner for a table stove includes an internal mixing chamber for combustion gas and primary air, and a row of flame holes through which a mixed gas of air and fuel gas is discharged to the outside.

In this burner, for example, two inward recesses are formed from the burner body to the burner cap,
Thermocouples and spark electrodes for detecting the ignition state are accommodated in these recesses, respectively.

Then, when W4 is buried, the spark electrode is operated in accordance with the ignition operation, and the mixed gas discharged from the flame hole row is ignited to form a flame and heat the cooking steel.

[Problems to be Solved by the Invention] However, since the thermal lightning pair and spark electrode inside the recess are exposed to the outside, the appearance becomes unsightly.
During cooking, there is a risk that spilled boiling water from inside the 1JIT II steel may fall to the outside due to boiling, causing deterioration of the thermal lightning pair or spark electrode, or may fall on the flame hole, causing clogging of the flame hole. .

[Object of the invention] This invention has been made in consideration of the above circumstances, and its object is to:
The thermal lightning pair and spark electrode inside the recess are exposed to the outside, resulting in a better appearance! lI]! I! To provide a burner for a stove that exhibits excellent 2Pl effects, such as preventing early deterioration of a thermal lightning pair and spark electrode due to boiling over, and eliminating clogging of flame holes.

f stage for solving problem E] The present invention has a mixing chamber for primary air and fuel gas,
The burner body has a row of flame holes for discharging the mixed gas from the mixing chamber to the outside, and the burner body has a front it! A concave portion is formed to penetrate toward the mixing chamber and accommodate a heat-sensitive element, a spark electrode, etc., and a concave portion having a diameter slightly larger than the burner body is placed on the burner body via a spacer so as to cover the burner body. A protective plate is provided.

[Operation and Effects of the Invention] According to the present invention configured as described above, a protective plate larger than the burner body is provided on the burner body, so that thermal lightning pairs, spark electrodes, etc. are protected from the outside. 9. You can improve the appearance by eliminating the possibility of being damaged. There is no longer any risk of spilled boiling from the cooking steel hitting thermocouples or spark electrodes during heating, preventing malfunctions and deterioration.
Furthermore, it is an object of the present invention to provide a burner for a stove that has an excellent effect of eliminating stickiness of flame holes and the like.

[Example] The present invention will be explained below based on embodiments shown in the drawings.

First, in FIG. 1, a burner 1 is a burner main body of the present invention, and is composed of a burner body 6, a barb 4, and a pipe 1.
b so as to be concentric with each other, and the connecting portion 6a
1, which is a mixing chamber GA between the annular 111 part 6b;
The barb body 6 has an open upper surface and an annular surface 63 that slopes downward in a T-shape toward the center. This annular shape 1ij63 has a notched recess 62 and a recess 62a extending approximately 60r across the annular shape 1ij63! They are formed adjacent to each other with an angular spacing of 1. From each inner end of the recess 62 and the recess 162a, a flat recessed N-shaped annular surface 63a and a flat recessed I-shaped surface 63b are formed so as to be continuous with the annular surface 63, respectively, and slightly protrude into the mixing chamber GA. There is.

Further, the annular steel portion 6b of the burner body 6 has concave portions 62 and 6.
L that communicates with the mixing v68 in radially opposing parts
1 letter-shaped duct 6B! It's drying up.

On the other hand, the burner cap l has a dish shape, and has a mounting cylinder part 12 in the center that fits into the fitting cylinder fl 6a of the burner body 6.
is formed. In addition, on the outer edge of the back side of the barb 4 and yap 1, a large number of protrusions 7A are provided radially around the circumference at equal intervals except for the portions corresponding to the four parts 62 and the recess 1" It is showing.

As the mounting cylinder part 12 is fitted into the fitting cylinder part 6a, these protrusions 7A abut against the annular shape [i63 to form a flame hole row 13 that opens toward the outer circumference.

Now, in the part corresponding to the recess 62 of the burner shaft 1, a protrusion tooth 7 is provided which is retracted slightly closer to the center than the protrusion 7A.
4a, 75a, and 76a are formed, and the empty mats in front of these protruding teeth are made into recesses 1a, and the protruding teeth 7B and IC are formed to sandwich these protruding teeth 74a, 7Sa, and 76a on both sides. In addition, burner 4” Yap 1
In the part corresponding to the concave r@02a, a ridge tooth 74 is formed by retracting the fourth part 7b and the ridge tooth 74 slightly toward the center from the ridge IA in the same way as above, and the front area of this ridge tooth is formed in the recess yb. At the same time, a long #7 plate sandwiching this protrusion f174 on both sides
D. IE is provided. Furthermore, the burner cap 7 has a protrusion F at a position approximately diametrically corresponding to the protrusion tooth 14.
7X is formed, and this protrusion 1x is made to correspond to the notch 6x provided in the fitting cylinder portion 6a of the burner body 6.
As the burner cap 7 is attached to the burner body 6, the protrusion 7x fits into the notch 6x to prevent rotation and position -1, and the protrusion f1474a,
75a 176a and the protruding tooth 74 as shown in the 11th recess 11F@state 63a and! ! a! ring state 63
Touch each side.

At the same time, the recess 1'1Ii7a of the burner 1 Yap 1 matches the four parts 62 of the burner body 6, and the recess 1b matches the recess 6.
Matches 2a. These four parts 7a, 62 house a thermocouple (i-thermal element) 10 in the safety device 4, which will be described later.
A spark electrode 9 of an ignition device is accommodated in the recesses 7a, 62a. Reference numeral 90 denotes a protective plate having a gently spherical upper surface, which is formed to have a slightly larger diameter than the burner 1 yap 7, and has a flange-like eaves portion 93 integrally formed on its outer peripheral edge. This eaves portion 93 has a stepped portion 93b at its boundary with the protection plate 90 on the inner circumferential surface side, and this stepped portion 93b.
3b is a tapered portion 93a that slopes downward toward the outside.
has been established. The protective plate 90 is fitted into, for example, three studs 91, which are erected at equal angular intervals as spurs on the outer peripheral edge of the burner 1 Yap 7, via stepped portions 93b, and is mounted in a positioned state. In this state, the outer peripheral edge of the protective plate 90 protrudes outward by about 3 ml11 from the outer peripheral edge of the burner 1 and the eaves part 93.
protrudes slightly toward the burner 1 cover 7 so that the tapered portion 93a faces the outer periphery of the burner 1 cover 7 with a slight gap.

The burner 1 configured in this way is as shown in FIG.
It is incorporated into the stove 100 of the present invention.

In this stove 100, 2 is a gas supply system to the burner 1, 3 is an ignition device for the burner 1, 4 is a safety device, and 5 is a stove case in which these members are housed.

On the other hand, the mixing pipe 8 is connected to the duct 6B and has an upstream end 81
is used as an introduction part for fuel gas and primary air, and a primary air intake 1182 is provided on the end face.

The gas supply system 2 includes a gas conduit 21, a valve 22, and a nozzle 23 whose tip is inserted into the mixing pipe 8.
2 is opened and closed by operating a knob 24, and can be maintained in the open state by the output of the thermocouple 10.

The ignition device 3 includes a high voltage generating means 32 consisting of a combination of a spark electric element 9, a piezoelectric collector and a moon bomber side for applying an impact to the piezoelectric element f, or a combination of a dry battery and a high voltage pulse settling circuit. and a lead wire 33 connecting these. This high voltage generating means 32 is normally connected to the knob 24.
A spark is generated in the spark electrode 9 in conjunction with the opening of the valve 22, and the bar 1 is ignited.

The safety device 4 consists of a thermocouple 10 and an electromagnet (not shown) installed in the valve 22 so as to maintain the valve body of the valve 22 in an open state with the output of the thermocouple 10, and is heated by the generated flame. When the temperature of the thermal lightning pair 10 is higher than the set value due to the fire extinguishing, the valve 22 is kept open, and when the temperature of the thermal lightning pair 10 falls below the set value due to extinguishing, etc., a spring (not shown) is activated. Then, the valve body operates in the valve closing direction.

Next, the operation of the stove 1000 will be explained.

When the knob 24 is turned, the valve 22 opens, and gas is ejected from the nozzle 23 connected to the flow of the valve 22. This jet flow of gas causes the primary air intake 82 to flow through the rainbow 1.
Air is sucked in by the action of the heater, mixed in the mixing tube 8, and supplied into the mixing chamber 6A of the burner body 6. 1
The ignition device 3 operates in conjunction with the operation of the Moekki knob 24,
A spark is generated by the spark electrode 9. This spark ignites the mixed gas of air and fuel gas ejected from the flame hole row 13 to the outer periphery, generates a flame, and heats the cooking w412. At this time, as shown by the arrow in FIG. 3, the secondary air is discharged to the outside from the intake 1 cylindrical portion 72b) through between the inner surface of the retainer 11i plate 90 and the upper surface of the barb cap 1. Air is supplemented.

In the above configuration, since the protective plate 90 is provided at the t part of the bath 1 yap 7, even if boiled water spills out from the cooking w412, it will be caught on the protective plate 90, and the thermocouple 10 and spark electrode Tray 1 through which 9 and secondary air pass
There is no possibility of spilled boiled water falling on the inner periphery of the cylindrical portion 72 or the like. For this reason, early deterioration of the thermal lightning pair 10 and the spark electrode 9 is prevented, and insufficient secondary air circulation and excessive flame holes are eliminated.

Further, since the protective plate 90 is provided with the eaves portion 93, the effect of the embodiment as described in 1. is obtained.

That is, boiled boiled water and the like flowing down the protection plate 90 is drained by the eaves part 93 when it reaches the outer peripheral edge. For this reason, the boiled-over spillage does not continue to be left in the pinched state forever, and the boiled-over spillage on the protection plate 90 quickly falls off. In addition, since the protective plate 90 is detachable from the barb 1, the protective plate 90 can be easily removed and washed with tap water after being soiled by boiling over.

Furthermore, as described above, the secondary air flows from the inside of the mounting cylinder 72 as shown by the arrow in FIG.
Exit to the top while being guided by a. Such a flow of secondary air stabilizes the state of the flame from the flame hole row 13 and prevents it from lifting, improving combustibility and, in turn, improving the heating state for tone III and w412.

As the flame stabilizes and lift is eliminated, the heating condition for the thermocouple 10 improves, malfunctions of the thermocouple 10 are eliminated, and the desired normal I function is maintained. Effects can also be obtained.

In the above embodiment, the protective plate 90 is formed to have a larger diameter than the burner cap 7, and is set to protrude outward by about 3u, but the amount of protrusion is not limited to only the dimension 3-. Of course, it can be set to any appropriate value.

Further, in the above embodiment, the stud 91 was provided as a spacer, but as shown in FIG. A groove (not shown) may also be provided.

Furthermore, what is Burner A-Yatsubu 7 and Burner Body 6?
It may be formed integrally and this may be used as the burner body.

In addition, in this embodiment, the spark electrode 9 and the thermocouple 1
I tried to accommodate both of 0 in the fourth part, but at least
It may be accommodated in one of the recesses. Further, although the recesses 7a and 7b of the burner cap 7 are formed in the shape of a notch in the above embodiment, the shape of the notch is omitted and the protrusion teeth 74a are formed.
, 75a, 76a and the respective tips of the protruding teeth 74 may be respectively formed as recessed portions.

In addition, various changes may be made in the specific implementation without departing from the gist of the present invention.

[Brief explanation of the drawing]

1 to 5 show one embodiment of the present invention, in which FIG. 1 is an exploded perspective view of a burner cap and a burner body, and FIG.
The figure is a schematic diagram of the stove, Figure 3 is an enlarged sectional view of the main parts, and Figure 4 is a schematic diagram of the stove.
FIG. 5 is a longitudinal cross-sectional view of a recessed portion shown together with a thermocouple, FIG. 5 is an assembly view of a burner, and FIG. 6 is a perspective view showing a protection plate of an embodiment of the present invention. In the diagram 1... Burner (burner body) 6... Burner body (burner body) 7... Burner cap (
Burner body) 9... Spark electrode 10... Thermocouple (heat sensitive element) 13... Flame hole row 62.62a...
・Recessed parts 7a, 7b...Recessed part 91...Stud (spacer) 95...Bin (spacer)

Claims (1)

[Claims] 1) A burner body with a mixing chamber for primary air and fuel gas inside, and a burner hole array for discharging the mixed gas to the outside from this mixing chamber; a concave portion formed to be concave toward the body and accommodate a heat-sensitive element, a spark electrode, etc.; and a concave portion having a slightly larger diameter than the burner body and placed on the burner body via a spacer so as to cover the burner body. A burner for a stove characterized by being provided with a protective plate.