JP6666201B2 - Stove burner and stove - Google Patents

Description

  The present invention relates to a stove burner that is exposed from a stove top plate to heat a pot, etc., and a stove provided with this burner.

  The stove burner, which is provided on the stove and heats the pot on the stove top plate, is generally provided with a burner cap on a burner head connected to a mixing pipe for mixing fuel gas and primary air. Is placed. In the burner head, a peripheral wall that rises in a cylindrical shape along the outer peripheral edge is formed, a distribution chamber communicating with the mixing pipe is formed inside the peripheral wall, and an annular upper end surface of the peripheral wall is formed as a seat surface of the burner cap. Have been.

  A hanging annular wall is formed all around the outer peripheral edge of the burner cap. A plurality of grooves are provided in the annular wall at predetermined intervals in the circumferential direction. When the annular wall of the burner cap is seated on the seating surface of the peripheral wall of the burner head, a plurality of flame openings are formed.

  However, if the broth overflowing from a pot or the like spills onto the burner cap, the broth may enter the burner head from the flame opening. Therefore, conventionally, a seat surface on which a burner cap is mounted is formed as an inclined surface that becomes gradually higher toward the center of the burner head (for example, see Patent Document 1). In this case, a passage for a flame port which rises toward the flame port at the outer end penetrates near the upper end of the annular wall, and a boil-back groove is formed on the lower surface of the annular wall.

  However, when the spill from the pot is severe, the broth flows into the burner head vigorously toward the center of the burner head due to the inside of the flame outlet, and this causes a problem that the broth enters the distribution chamber and the mixing tube. there were.

  Therefore, the present applicant has previously proposed a stove burner that prevents the broth from entering the distribution chamber or the mixing tube (see Patent Document 2).

JP-A-11-63502 JP 2007-24359 A

  By the way, it is well known that when a pot is heated on a stove with a burner, the most efficient heating of the pot can be achieved by making the flame of the burner hit the bottom of the pot in a nearly vertical position from below. is there.

  Each burner port of the burner of Patent Document 2 opens upward from the inclined upper surface of the burner cap and extends radially, but at the outer peripheral edge of the burner cap, it is configured to be continuous with a portion that opens horizontally. I have.

  For this reason, the flame formed at each flame outlet is formed radially in the lateral direction from the outer peripheral edge of the burner cap, particularly at the time of a strong fire, and the flame hits the pan bottom or the like obliquely, so that sufficient heating efficiency cannot be obtained. There was an inconvenience.

  In view of the above, the present invention provides a stove burner and a stove that provide high heating efficiency to an object to be heated while preventing a gas flow path from being blocked due to intrusion of broth from a flame opening. Aim.

In order to achieve this object, a stove burner according to the present invention includes a mixing pipe for mixing a fuel gas and primary air to generate a mixed gas, and a mixing pipe formed in an annular shape by communicating downstream of the mixing pipe. A burner head including a burner head having a gas distribution chamber and a burner cap having a plurality of flame ports formed on the burner head and forming a flame by a mixed gas supplied from the distribution chamber, The burner cap is formed in an umbrella shape having an inclined surface gradually increasing from an outer peripheral edge toward a central portion, and has the respective flame ports on the upper surface, and each of the flame ports is a top surface of the burner cap. The distribution chamber is formed at a position at a predetermined distance from an outer peripheral edge, and the distribution chamber is annularly opened upward and is opposed to the lower surface of the burner cap at a center side of each of the flame outlets; Outside An upper wall that covers an upper surface of the distribution chamber, and a receiving portion that receives an intruder falling through each of the flame ports is provided in a region including at least immediately below each of the flame ports of the burner cap; The part is mounted on the upper wall of the distribution chamber .

  According to the present invention, since the flame port is provided on the upper surface of the umbrella-shaped burner cap at a predetermined distance from the outer peripheral edge of the burner cap, the flame port is opened upward, and the flame is directed upward. It is formed. Therefore, since the flame hits the object to be heated located above the flame opening substantially vertically, high heating efficiency can be obtained for the object to be heated.

  In addition, the flame outlet is not located immediately above the upwardly opened portion of the annular distribution chamber, so that even if the broth flows down from the flame mouth into the burner, it does not enter the distribution chamber.

  Further, in the stove burner of the present invention, it is preferable that the burner cap includes a protruding portion protruding from an upper surface of the burner cap along an inner peripheral edge of each of the flame openings. According to this, when the broth spills from the pot or the like onto the upper surface of the burner cap, the broth cannot penetrate the flame mouth unless the broth climbs over the raised portion, so that it is possible to prevent the broth from entering the flame mouth. it can.

  In the stove burner of the present invention, it is preferable that the burner cap includes a cylindrical portion extending downward from the entire inner peripheral edge of each of the flame openings. In the event that broth enters through the flame, the broth is guided along the inner surface of the tubular portion, directly below the flame, and is drained smoothly at the lower edge of the tubular portion. As a result, the broth does not move along the lower surface of the burner cap, and it is possible to reliably prevent the broth from entering the distribution chamber or the mixing tube.

Moreover, Te stove burner odor of the present invention, the receiving unit is preferably provided detachably.

  According to this, not only can the receiving portion receive a relatively large amount of the broth (intruder dropped through the flame opening) from the flame outlet, but the receiving portion is removed and the burner is cleaned and cleaned. Can be kept clean.

  At this time, the receiving portion further includes a cylindrical upright wall formed upright from the outer peripheral edge thereof over the entire circumference, and the upright wall is hermetically sealed on the lower surface side of the burner cap over the entire circumference. It is preferable that the contact is made. According to this, the sealing property between the burner cap and the burner head can be obtained at the position outside the burner port (outer peripheral edge side of the burner cap), and the flow of the fuel gas from the distribution chamber to the burner port can be reliably formed. Can be.

  The present invention also provides a stove comprising: a stove burner having the above-described configuration; a top plate having a burner opening corresponding to the stove burner; and a housing whose top surface is covered by the top plate. The burner cap of the burner has a larger outer diameter than the burner opening, and the entire upper surface of the burner opening of the top plate is covered by the burner cap.

  According to the present invention, since the burner opening of the top plate is covered by the burner cap formed in an umbrella shape, foreign matter can enter the inside of the stove from the burner opening (for example, boiled juice from the burner opening to the inside of the stove). Inflow can be prevented.

  Further, in the stove according to the present invention, a gotoku is placed on the top plate so as to surround the burner opening, and the burner cap is provided on an outer peripheral edge thereof with a engaging member that engages at least a part of the gotoku. It is preferable to provide a joint.

  Since the positioning of the virtues relative to the burner cap is reliably performed by the engaging portion, not only can the heated portion such as a pot be stably placed, but also, for example, when the virtues and the burner cap are misaligned, It is possible to reliably prevent a decrease in the heating efficiency due to the burning of the nails.

The perspective view showing the important section of the stove of an embodiment of the present invention. Explanatory sectional drawing of the principal part of the burner for stoves. The perspective view which shows a burner cap. The figure which looked at the flame opening of the burner cap in cross section.

  An embodiment of the present invention will be described with reference to the drawings. Although the housing of the stove of the present embodiment is not shown, as shown in FIG. 1, as shown in the main part, a stove 2 is placed on a top plate 1 and a stove burner 3 is placed at a position surrounded by the stove 2. Have.

  The stove burner 3 includes a mixing tube 4, a burner head 5, and a burner cap 6, as shown in FIG. The mixing pipe 4 takes in the primary air for combustion together with the fuel gas ejected from a gas nozzle (not shown) to generate a mixed gas. A burner head 5 is integrally provided downstream of the mixing pipe 4.

  The burner head 5 is arranged corresponding to the burner opening 1a formed in the top plate 1, and is supported by a stove body (not shown) via a support member.

  The burner head 5 includes an outer wall 51 and an inner wall 52, and an annular distribution chamber 7 is formed between both side walls. The distribution chamber 7 is provided with an opening 71 that is annularly opened upward along the inner wall 52. The opening 71 includes a guide wall 54 that rises from the inner edge of the upper wall 53 that covers substantially the outer half of the upper surface of the distribution chamber 7. The distribution chamber 7 communicates with the downstream of the mixing pipe 4 to distribute the mixed gas annularly, and then guides the mixed gas upward along the guide wall 54 of the opening 71 to diffuse the mixed gas. On the upper wall 53, an annular tray member 8 (receiving portion) described later is placed.

  A burner cap 6 is attached to an upper portion of the burner head 5. As shown in FIGS. 2 and 3, the burner cap 6 is formed in an umbrella shape with an inclined surface gradually increasing from the outer peripheral edge toward the center. On the upper surface of the burner cap 6, a plurality of flame holes 9 are formed at predetermined intervals in the circumferential direction. The burner port 9 is formed in a long hole shape along the radial direction of the burner cap 6 and has a predetermined distance from the outer edge of the burner cap 6 (a distance larger than the longitudinal dimension of the burner port 9 in the present embodiment). It opens upward in the position where it was set.

  As described above, since the flame port 9 provided in the burner cap 6 has a predetermined distance from the outer peripheral edge of the burner cap 6 and is open upward, the flame formed from the flame port 9 is in a standing state. It hits the pot bottom (not shown) placed on Gotoku 2 in a close posture. Thereby, the heating efficiency is higher than that in which the flame formed obliquely toward the outer direction hits the pot bottom.

  At the center of the burner cap 6, a central cylindrical wall 61 forming a circular space extending downward is continuously provided. The central cylindrical wall 61 hermetically contacts the inner peripheral surface of the cylindrical wall 52a in which the inner side wall 52 extends inward in the radial direction and is further provided below to prevent leakage of the mixed gas.

  As shown in FIG. 2, the flame outlet 9 is formed at a position outside the opening 71 of the distribution chamber 7 and at a position immediately above the pan member 8.

  As shown in FIGS. 1 and 2, in the central space defined by the inner side wall 52 of the burner head 5 and the central cylindrical wall 61 of the burner cap 6, the pot bottom temperature that penetrates vertically and protrudes above the stove burner 3. A sensor S is provided.

  As shown in FIGS. 3 and 4, the burner cap 6 has a raised portion 62 that is raised along the inner peripheral edge of the flame opening 9. Further, as shown in FIG. 4, a tubular portion 63 extending downward from the entire inner peripheral edge of the flame port 9 is formed. The raised portion 62 suppresses the penetration of the boiling liquid into the flame opening 9 as much as possible when the boiling liquid falls out of a pot or the like on the upper surface of the burner cap 6. When the broth enters the flame opening 9, the tubular portion 63 guides the broth immediately below and drains the water at the lower edge of the tubular portion 63. At this time, as shown in FIG. 2, since the saucer member 8 is provided immediately below the flame mouth 9, the boiling juice dropped from the flame mouth 9 is received and accumulated in the saucer member 8. The pan member 8 is detachable from the burner head 5. Therefore, work such as cleaning by removing the tray member 8 is easy.

  The pan member 8 is in close contact with an annular bottom portion 81 placed on the upper surface of the upper wall 53 of the distribution chamber 7 of the burner head 5 and the guide wall 54 of the open portion 71 of the burner head 5 rising from the inner peripheral edge of the bottom portion 81. And an outer peripheral wall 83 (standing wall) standing up from the outer peripheral edge of the bottom portion 81 and extending toward a position outside the flame opening 9 of the burner cap 6.

  The outer peripheral wall 83 of the saucer member 8 is in airtight contact with the cylindrical closing wall 64 that hangs down from the lower surface of the burner cap 6, and reliably guides the mixed gas to the flame outlet 9.

  As shown in FIG. 2, the burner cap 6 has a larger diameter than the burner opening 1 a of the top plate 1. As a result, the burner opening 1a is covered with the burner cap 6, and intrusion of foreign matter into the stove from the burner opening 1a is prevented by the burner cap 6.

  As shown in FIG. 3, the burner cap 6 has a pair of recesses 65 formed at radially opposite positions on the outer peripheral edge. As shown in FIG. 1, the concave portion 65 functions as an engaging portion of the present invention in which the extending portion 22 extending inward from the base of the sword 21 engages.

  According to this, since the positional relationship between the flame port 9 of the burner cap 6 and the virtuosity claw 21 is always the same, for example, a misalignment between the flame port 9 of the burner cap 6 and the virtuosity claw 21 causes a misalignment. Broiling of the nail 21 can be prevented.

  In addition, in this embodiment, although it was set as the structure which engages with the extended part 22 of the virtue nail | claw 21 in the recessed part 65 of the burner cap 6, it is not restricted to this. For example, although not shown, an extension may be provided to extend inward in a part of the virtues and engage with the recess 65 of the burner cap 6.

  DESCRIPTION OF SYMBOLS 1 ... Top plate, 1a ... Opener for burners, 2 ... Gotoku, 3 ... Burner for stove, 4 ... Mixer tube, 5 ... Burner head, 6 ... Burner cap, 62 ... Raised part, 63 ... Cylindrical part, 65 ... Concave part (Engagement part), 7: distribution chamber, 8: tray member (reception part), 83: outer peripheral wall (standing wall), 9: flame outlet.

Claims (7)

A mixing pipe that mixes the fuel gas and the primary air to generate a mixed gas, a burner head including a ring-shaped mixed gas distribution chamber that communicates with the downstream of the mixing pipe, and a loader mounted on the burner head. A burner cap formed with a plurality of flame openings that form a flame by a mixed gas supplied from the distribution chamber and disposed,
The burner cap is formed in an umbrella shape having an inclined surface gradually increasing from an outer peripheral edge toward a central portion, and includes the respective flame ports on the upper surface,
Each of the flame ports is formed at a position at a predetermined distance from an outer peripheral edge of an upper surface of the burner cap,
The distribution chamber has an open portion that is open upward in an annular shape and faces the lower surface of the burner cap on the center side of each of the flame outlets , and an upper wall that covers the upper surface of the distribution chamber outside the open portion. Prepared,
In a region including at least immediately below each of the flame ports of the burner cap, a receiving portion that receives an intruder falling through each flame port is provided,
The stove burner , wherein the receiving portion is placed on the upper wall of the distribution chamber . The stove burner according to claim 1,
The stove burner, wherein the burner cap includes a protruding portion protruding from an upper surface of the burner cap along an inner peripheral edge of each of the flame openings. The stove burner according to claim 1 or 2,
The stove burner, wherein the burner cap includes a tubular portion extending downward from the entire inner periphery of each of the flame openings. The stove burner according to any one of claims 1 to 3,
The stove burner , wherein the receiving portion is detachably provided . The stove burner according to claim 4,
The receiving portion includes a cylindrical upright wall formed upright from the outer peripheral edge to the entire circumference,
The stove burner is characterized in that the upright wall is in airtight contact with the lower surface side of the burner cap over the entire circumference. A stove comprising: the stove burner according to any one of claims 1 to 5; a top plate having a burner opening corresponding to the stove burner; and a housing whose upper surface is covered by the top plate. ,
The burner cap of the stove burner has an outer diameter larger than the burner opening,
The stove, wherein the burner opening of the top plate is entirely covered with the burner cap. The stove according to claim 6,
Gotoku is placed on the top plate so as to surround the burner opening,
The stove, wherein the burner cap includes an engaging portion on an outer peripheral edge thereof, the engaging portion engaging with at least a part of the virtue.