JP7181826B2 - stove burner - Google Patents

Description

The present invention relates to a stove burner that burns a mixed gas of fuel gas and combustion air.

A stove burner that mixes fuel gas and combustion air and burns the resulting mixed gas is widely used. This stove burner has a structure in which a ring-shaped burner head is placed on a ring-shaped burner body, and a plurality of flame ports are formed on the outer peripheral side of the burner head. there is A mixing passage is connected to the burner body, and when fuel gas and combustion air are supplied into this mixing passage from the side not connected to the burner body, they are mixed in the mixing passage to form a mixed gas. After being generated, it flows into the burner body. The mixed gas thus flowing into the burner body is supplied to the burner head and flows out from a plurality of flame ports formed on the outer peripheral side surface of the burner head. When this mixed gas is ignited by a spark plug, combustion of the mixed gas is started by a stove burner.

Further, today, there is a demand for reducing the diameter of the burner head without lowering the heating power of the stove burner. Therefore, in order to reduce the diameter of the burner head, the width of the flame port is narrowed, and in order not to reduce the heating power of the stove burner, the height of the flame port is increased to increase the opening area of the flame port. is ensured so that the flow rate of the mixed gas flowing out from the flame port is not reduced (for example, Patent Document 1).

JP 2017-198415 A

However, if the width of the flame port formed in the burner head is narrowed, there is a problem that the stove burner may not be usable for a while after the burner head is washed with water to clean up boiled juice. . The reason for this is that if the width of the flame port is narrow, when the burner head is washed with water, a phenomenon called "water sealing" occurs, in which the flame port is blocked by the surface tension of water, and the mixed gas flows out from the flame port. This is because the stove burner cannot be used until the water evaporates.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and provides a stove burner that can easily eliminate the water seal of the flame port even if the burner head is made small in diameter. intended to provide

In order to solve the above problems, the stove burner of the present invention employs the following configuration. i.e.
A stove burner that mixes fuel gas and combustion air in a mixing passage to form a mixed gas, and burns the mixed gas by flowing out from a plurality of flame ports,
The plurality of flame ports are formed by placing an annular upper member on an annular lower member,
The upper surface of the lower member on which the upper member is placed has a plurality of lower partition walls projecting upward radially from the center of the annular shape,
A plurality of upper partition walls radially protrude downward from the center of the annular shape on the lower surface of the upper member placed on the lower member,
In the upper member, the upper partition wall protruding downward from the lower surface and the lower partition wall protruding upward from the upper surface of the lower member are arranged alternately in the circumferential direction of the annular shape. placed on the lower member,
The plurality of flame ports are formed in a gap between the lower partition wall and the upper partition wall by placing the upper member on the lower member , and form the flame ports. The one side wall forming the flame port is formed only by the lower partition wall, and the other side wall forming the flame port is formed only by the upper partition wall.
It is characterized by

In the stove burner of the present invention, a plurality of flame holes are formed by placing the annular upper member on the annular lower member. A plurality of lower partition walls radially protrude upward from the center of the annular shape on the upper surface of the lower member, which is one of the members forming the flame port. Further, a plurality of upper partition walls radially protrude downward from the center of the annular shape on the lower surface of the upper member, which is the other member forming the flame port. The lower member is arranged such that the lower partition wall protruding upward from the upper surface of the lower member and the upper partition wall protruding downward from the lower surface of the upper member alternate in the circumferential direction of the ring shape. By placing the upper member on top, a plurality of flame holes are formed in the gap between the lower partition wall and the upper partition wall, and one side wall forming the flame hole is formed only by the lower partition wall. , the other side wall forming the flame port is formed only by the upper partition wall.

In this way, a flame port is formed between the lower partition wall of the lower member and the upper partition wall of the upper member. If the other sidewall to be formed is formed only by the upper partition wall , the width of the flame port can be adjusted to the interval between the lower partition walls or the interval between the upper partition walls by separating the upper member from the lower member. can be expanded. For this reason, even if a water seal occurs at the flame vent, by separating the upper member from the lower member to create a portion where the width of the flame vent is widened, the water at that location will flow by surface tension. It can no longer support its own weight and flows out. Then, as a result of this, the water sealing the flame mouth starts to flow out, making it possible to easily remove the water sealing.

Further, in the above-described stove burner of the present invention, the mixed gas formed in the mixing passage is supplied to the burner body, the lower head is placed on the burner body, and the upper head is placed on the lower head. A plurality of flame holes may be formed between the lower head and the upper head by placing the heads. The lower head may form the lower member, and the upper head may form the upper member.

By doing so, even in a stove burner in which a plurality of flame ports are formed by placing the upper head on top of the lower head, the water sealing of the flame ports can be easily eliminated.

Further, in the stove burner of the present invention in which a plurality of flame ports are formed by placing the upper head on top of the lower head, the upper head and the lower head are moved by a predetermined distance relative to the other. may be connected so that they are not separated from each other.

In this way, since the lower head and the upper head are not separated, it is possible to reliably avoid the situation where one of the heads is placed on the burner body but the other is not placed on the burner body. can be done. In addition, since the lower head and the upper head can be separated within a predetermined distance, even if a water seal occurs at the flame port, the water seal can be easily eliminated.

Further, in the above-described stove burner of the present invention, the mixed gas formed in the mixing passage is supplied to the burner body, and the burner head is placed on the burner body so that the burner body and the burner head are A plurality of flame holes may be formed between them. The burner body may form the lower member, and the burner head may form the upper member.

By doing so, even in a stove burner in which a plurality of flame ports are formed by placing the burner head on the burner body, the water sealing of the flame ports can be easily eliminated.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which showed the rough shape of the stove burner 1 of 1st Example. FIG. 3 is an exploded view showing the detailed structure of the burner body 11 of the first embodiment and the burner head 100 placed on the burner body 11; FIG. 4 is an explanatory diagram of the positional relationship between a lower partition wall 123 and a projecting wall 124 projecting from a lower head 120 and an upper partition wall 113 and a projecting wall 114 projecting from an upper head 110 in the first embodiment; FIG. 5 is an explanatory diagram of the reason why the burner head 100 of the first embodiment can eliminate the water seal. It is explanatory drawing about the burner head 100 of the modification of 1st Example. FIG. 5 is an explanatory diagram of the function of a connecting means 130 provided in a burner head 100 of a modified example of the first embodiment; It is explanatory drawing about the stove burner 5 of 2nd Example.

FIG. 1 is an explanatory diagram showing the rough shape of the stove burner 1 of the first embodiment. As shown in FIG. 1, roughly speaking, the stove burner 1 of the first embodiment has a structure in which a burner head 100 made of casting or die casting is mounted on a burner body 10 made of sheet metal. there is The burner body 10 is formed with a substantially cylindrical burner body 11 and two mixing passages 12 and 13 connected to the burner body 11 . Also, the burner head 100 is divided into an upper head 110 and a lower head 120 . By placing the lower head 120 on the burner body 11 , a plurality of small flame holes 102 are formed between the burner body 11 and the lower head 120 , and the upper head 120 is provided on the lower head 120 . By placing the head 110 , a plurality of flame ports 101 are formed between the lower head 120 and the upper head 110 . This point will be explained in detail later.

An ignition target 120t protrudes from the outer surface of the lower head 120, and an ignition plug 20 for discharging sparks toward the ignition target 120t is provided below the ignition target 120t. Furthermore, a flame detection sensor 30 is also provided at a position adjacent to the spark plug 20 .

One end of the mixing passage 12 formed in the burner body 10 is connected to the burner body 11, but the other end is an open end 12o, and an injection nozzle (not shown) faces the open end 12o. is provided. Similarly, one end of the mixing passage 13 is connected to the burner body 11, but the other end is an open end 13o, and an injection nozzle (not shown) is provided at a position facing the open end 13o. A downstream gas pipe 2a is connected to the injection nozzle at the opening end 12o, and a downstream gas pipe 2b is connected to the injection nozzle at the opening end 13o. , are branched from one upstream gas pipe 2 . A main valve 3 is installed in the middle of the upstream gas pipe 2, a flow control valve 4a is installed in the middle of the downstream gas pipe 2a, and a flow control valve 4b is installed in the middle of the downstream gas pipe 2b. is installed. These main valve 3, flow control valve 4a, and flow control valve 4b are connected to a control section (not shown) of the stove burner 1. As shown in FIG. Also connected to the control unit are the spark plug 20 and the flame detection sensor 30 described above.

When the main valve 3 is opened and the flow control valve 4b is opened while the flow control valve 4a is closed, the fuel gas supplied from the upstream gas pipe 2 flows into the mixing passage 13 from the downstream gas pipe 2b, A mixed gas is formed by mixing the fuel gas and air in the mixing passage 13 . The interior of the burner body 11 has a double structure, and the mixing passage 13 communicates with the small flame port 102 inside the burner body 11 . Therefore, the mixed gas formed in the mixing passage 13 flows out from the small flame port 102 . Since the mixing passage 13 does not communicate with the flame port 101 , the mixed gas formed in the mixing passage 13 does not flow out from the flame port 101 . When the spark plug 20 ignites the mixed gas flowing out from the small flame port 102 , the mixed gas starts to burn at the small flame port 102 . Furthermore, when the flow rate control valve 4a is opened while the mixed gas is being burned in the small flame port 102, the fuel gas also flows into the mixing passage 12 from the downstream side gas pipe 2a, and the mixed gas flows in the mixing passage 12. It is formed. Since the mixing passage 12 communicates with the flame port 101 inside the burner body 11 , the mixed gas formed in the mixing passage 12 flows out from the flame port 101 . Combustion at the flame port 101 is started by the flame from the combustion at the small flame port 102 spreading to this mixed gas.

FIG. 2 is an exploded view showing the detailed structure of the burner body 11 and the burner head 100 placed on the burner body 11. As shown in FIG. As illustrated, the burner body 10 is formed by pressing a sheet metal member, and includes a substantially cylindrical burner body 11 and mixing passages 12 and 13 connected to the burner body 11 . The cylindrical burner body 11 has an annular mounting surface 11s formed by bending the upper end of the cylindrical shape downward and radially inward. A cylindrical pipe member 14 is erected inside the burner body 11 , and a mixing chamber 15 is formed in a space between the inside of the burner body 11 and the outside of the pipe member 14 .

Furthermore, an intermediate body 16 made of sheet metal and pressed into a substantially cylindrical shape having a diameter smaller than that of the burner body 11 is incorporated in the interior of the burner body 11 . The mixing chamber 15b in the outer portion (that is, the portion between the burner body 11 and the intermediate body 16) and the inner portion than the intermediate body 16 (that is, the portion between the intermediate body 16 and the pipe member 14) It is divided into a mixing chamber 15a. Among them, the mixing chamber 15 b communicates with the mixing passage 13 , and the mixing chamber 15 a communicates with the mixing passage 12 . The upper end of the substantially cylindrical intermediate body 16 is bent inward in the radial direction, and then the leading end thereof is bent downward to form a short cylindrical positioning portion 16a. .

A lower head 120 forming the burner head 100 is a substantially cylindrical member, and an annular enlarged diameter portion 122 is formed by expanding the upper portion of a cylindrical partition wall portion 121 in a trumpet shape. A plurality of lower partition walls 123 project upward radially from the center of the enlarged diameter portion 122 on the outer edge portion of the upper surface side of the enlarged diameter portion 122 . The plurality of lower partition walls 123 protrude adjacent to each other, and upward protruding walls 124 are provided between the lower partition walls 123 at some positions. . In the example shown in FIG. 2, the lower partition walls 123 are grouped in equal numbers (three in the illustrated example). However, the projecting walls 124 may be provided at various positions of the plurality of lower partition walls 123 . Therefore, for example, projecting walls 124 may be provided between four lower partition walls 123 and three lower partition walls 123 . Further, the distance from the center of the annular enlarged diameter portion 122 to the outer surface of the lower partition wall 123 is the same for the plurality of lower partition walls 123 . Similarly, the distances from the center of the enlarged diameter portion 122 to the outer side surfaces of the projecting walls 124 are the same for the plurality of projecting walls 124 . Furthermore, in the lower head 120 of the first embodiment, the distance to the outer surface of the lower partition wall 123 and the distance to the outer surface of the projecting wall 124 are set to be the same.

In the lower head 120, a plurality of flame port walls 125 extending in the radial direction are also provided on the lower surface side of the enlarged diameter portion 122 so as to protrude downward. A groove-like flame port groove 126 is formed between adjacent flame port walls 125 . Furthermore, an ignition target 120t protrudes radially outward from one point between the plurality of lower partition walls 123 .

Such a lower head 120 is mounted on the burner body 11 while positioning the outer surface of the partition wall 121 with a cylindrical positioning portion 16 a formed at the upper end of the intermediate body 16 . Then, the lower end of the flame port wall 125 projecting downward from the lower head 120 contacts the mounting surface 11s of the burner body 11, and as a result, the flame port groove 126 between the adjacent flame port walls 125 and the mounting surface 11s form a small flame port 102 (see FIG. 1). When the lower head 120 is placed on the burner body 11, the outer portion of the partition wall 121 communicates with the mixing chamber 15b. Therefore, the mixed gas formed in the mixing passage 13 flows out from the small flame port 102 via the mixing chamber 15b.

On the other hand, the upper head 110 placed on the lower head 120 is a substantially annular member, and a through hole 111a is formed in the center of the annular main body portion 111 . A plurality of upper partition walls 113 project downward radially from the center of the body portion 111 at the outer edge portion on the lower surface side of the body portion 111 . The plurality of upper partition walls 113 also protrude adjacent to each other (similar to the lower partition walls 123 described above). A projecting wall 114 is provided.

Further, a cylindrical member (not shown) protrudes downward from the lower surface of the main body 111 coaxially with the through hole 111a. When placing the upper head 110 on the lower head 120 , a cylindrical member (not shown) projecting from the lower surface of the main body 111 is inserted into the pipe member 14 of the burner body 11 . By doing so, the upper head 110 can be positioned so that the center of the partition wall portion 121 of the lower head 120 (therefore, the center of the enlarged diameter portion 122) and the center of the main body portion 111 of the upper head 110 are aligned. can. As described above, a plurality of upper partition walls 113 protrude downward from the body portion 111 of the upper head 110 . It is provided at a position facing the projecting wall 124 of the lower head 120 when placed on the head. As for the upper partition 113 of the upper head 110, when the upper head 110 is positioned and placed on the lower head 120, the lower partition 123 protrudes upward from the lower head 120. It is provided at a position to be inserted between the lower partition wall 123 and the lower partition wall 123 .

As described above, the plurality of lower partition walls 123 and projecting walls 124 formed on the lower head 120 have the same distance from the center of the lower head 120 to the outer surface. Correspondingly, regarding the plurality of upper partition walls 113 and projecting walls 114 formed on the upper head 110, the distances from the center of the upper head 110 to the outer surfaces of the upper partition walls 113 and projecting walls 114 are It is set to the same distance as the distance from the center of 120 to the outer surface. Therefore, when the upper head 110 is placed on the lower head 120 , the outer surfaces of the plurality of lower partition walls 123 and projecting walls 124 formed on the lower head 120 and the plurality of walls formed on the upper head 110 The outer side surfaces of the upper partition wall 113 and the projecting wall 114 form one circumferential side surface.

FIG. 3 shows the detailed positional relationship between the protruding wall 124 of the lower head 120 and the protruding wall 114 of the upper head 110 when the upper head 110 is placed on the lower head 120, and the lower side of the lower head 120. 4 is an explanatory view showing the detailed positional relationship between the partition 123 and the upper partition 113 of the upper head 110. FIG. In FIG. 3, the outer surfaces of the lower head 120 and the upper head 110 are shown in a flat unfolded state. FIG. 3( a ) shows a state in which the upper head 110 is being placed on the lower head 120 . As illustrated, the projecting wall 114 of the upper head 110 is formed at a position facing the projecting wall 124 of the lower head 120 . Also, the upper partition 113 of the upper head 110 is formed at a position between a plurality of lower partitions 123 erected from the lower head 120 . The height of the lower partition wall 123 erected from the lower head 120 and the height of the upper partition wall 113 erected from the upper head 110 are the sum of the height of the projecting wall 124 and the height of the projecting wall 114. set to the same or slightly smaller value than the height

Therefore, when the upper head 110 is placed on the lower head 120, as shown in FIG. Contact. Furthermore, the plurality of lower partition walls 123 erected from the lower head 120 and the plurality of upper partition walls 113 erected from the upper head 110 are alternately arranged in the circumferential direction. A uniform gap formed between the lower partition wall 123 and the upper partition wall 113 serves as the flame port 101 . In FIG. 3B, the flame port 101 formed between the lower partition wall 123 and the upper partition wall 113 is indicated by diagonal lines.

Further, as shown in FIG. 2, when the lower head 120 is placed on the burner body 11 and the upper head 110 is placed on the lower head 120, the partition wall of the lower head 120 A portion inside the portion 121 and outside the pipe member 14 is connected to the mixing chamber 15a described above. Therefore, the mixed gas formed in the mixing passage 12 passes through the mixing chamber 15a and is supplied to the space between the enlarged diameter portion 122 of the lower head 120 and the body portion 111 of the upper head 110, and then It flows out from the flame port 101 (see FIG. 3B) formed between the lower partition 123 of the side head 120 and the upper partition 113 of the upper head 110 .

In the stove burner 1 of the first embodiment described above, when the upper head 110 is placed on the lower head 120, the flame hole is formed as shown hatched in FIG. 3(b). Since the width of 101 can be narrowed, the diameter of the burner head 100 can be reduced. On the other hand, by increasing the dimension of the flame port 101 in the height direction, the opening area of the flame port 101 can be sufficiently secured. In general, the narrower the width of the flame port to be formed, the more difficult it becomes to increase the dimension of the flame port in the height direction. However, in the above-described first embodiment, the flame port is formed between the lower partition wall 123 of the lower head 120 and the upper partition wall 113 of the upper head 110. The distance from the lower partition wall 123 is sufficiently wider than the width of the flame port 101 . Similarly, the distance between the upper partition walls 113 of the upper head 110 is also sufficiently wider than the width of the flame port 101 . Therefore, it is possible to form the flame port 101 with a height that is difficult to form with the width of the flame port 101 . As a result, even if the width of the flame port 101 is narrowed, the opening area of the flame port 101 can be sufficiently secured, so that the heating power of the stove burner 1 can be maintained.

In addition, in general, in a stove burner, if the shape of the flame port of the burner head is narrow and long in the vertical direction, after washing the burner head with water, the surface tension of water will cause the flame port to open. A phenomenon called "water sealing" in which the water is blocked easily occurs. If a water seal occurs, the mixed gas will not flow out from the flame port, so there may be a situation where the stove burner cannot be used until the water evaporates. However, in the stove burner 1 of the first embodiment, as described above, the gap between the lower partition wall 123 projecting from the lower head 120 and the upper partition wall 113 projecting from the upper head 110 is filled with flame. A mouth 101 is formed. Therefore, even if the flame port 101 is blocked by the surface tension of water and becomes water-sealed, as shown in FIG. An enlarged width portion of the mouth 101 can be formed. In the portion where the width is expanded, the water cannot support its own weight due to its surface tension and flows out. , the stove burner 1 can be used immediately even after the burner head 100 is washed with water.

Further, in the stove burner 1 of the first embodiment described above, it is possible to easily clean the burner head 100 even when the boiled juice is removed. That is, as shown in FIG. 3A, if the upper head 110 is largely lifted from the lower head 120, or if it is removed from the lower head 120, the space between the lower partition walls 123 and the lower partition walls 123 and , the upper partition wall 113 and the space between the upper partition wall 113 need only be cleaned. Therefore, it is possible to easily clean the boiled-over juice using a brush or the like.

Note that when the burner head 100 is formed of a lower head 120 and an upper head 110 mounted thereon, as in the stove burner 1 of the first embodiment described above, the lower head 120 The lower head 120 and the upper head 110 may be connected in a state in which the upper head 110 can be pulled up by a predetermined distance.

FIG. 5 is an explanatory view showing the structure of the burner head 100 of the modification of the first embodiment in which the lower head 120 and the upper head 110 are connected. As shown in FIG. 5(a), the modified burner head 100 comprises a lower head 120, an upper head 110, and connecting means 130 connecting them. The connecting means 130 includes a circular ring 131 made of a spring material, a holding portion 133 projecting downward from the main body portion 111 of the upper head 110 and holding the ring 131 , and the lower head 120 . A fitting portion 132 protrudes upward from the enlarged diameter portion 122 of the ring 131 and is fitted to the ring 131 in a movably movable state. Although the upper head 110 of the modified example differs from the upper head 110 of the first embodiment described above in that a holding portion 133 is provided, the other points are the same as those of the upper head 110 of the first embodiment. Since they are the same, detailed description will be omitted. Similarly, the lower head 120 of the modified example differs from the lower head 120 of the first embodiment described above in that a fitting portion 132 is provided. Since it is the same as the lower head 120, detailed description is omitted.

FIG. 5(b) shows a detailed shape of the holding portion 133 viewed from the direction of arrow A in FIG. 5(a). As shown in the figure, the holding portion 133 protrudes from the lower surface side of the main body portion 111 of the upper head 110, and the side surface of the holding portion 133 is formed with a concave portion 133a having a size into which the ring 131 is fitted. . Further, as shown in FIG. 5A, the holding portions 133 protrude from a plurality of locations (three locations in the illustrated example) equidistant from the center of the body portion 111 in the radial direction. As for the portion 133, a recessed portion 133a is also formed on the inner side surface of the holding portion 133 (that is, the center side of the upper head 110). When assembling the ring 131, the outer diameter of the ring 131 is reduced by bringing the two knobs 131t formed on the ring 131 close to each other. let go In this way, the ring 131 whose outer diameter has been reduced fits into the recessed portion 133a of the holding portion 133 as it attempts to return to its original shape. can.

FIG. 5(c) shows the detailed shape of the fitting portion 132 as seen from the direction of arrow B in FIG. 5(a). As shown in the figure, the fitting portion 132 projects upward from the upper surface of the enlarged diameter portion 122 of the lower head 120, and the side surface of the fitting portion 132 is formed with a vertically long concave portion 132a. there is As shown in FIG. 5A, the fitting portion 132 protrudes at a plurality of locations (three locations in the illustrated example) equidistant from the center of the enlarged diameter portion 122 in the radial direction. The fitting portion 132 also has a concave portion 132a formed on the inner side surface of the fitting portion 132 (that is, the center side of the lower head 120). Therefore, as described above, when the ring 131 is assembled to the recessed portion 133a of the holding portion 133 of the upper head 110, the ring 131 is inside the plurality of holding portions 133 and also inside the plurality of fitting portions 132. If the outer diameter of the ring 131 is returned to the original outer diameter in this state, the ring 131 can be fitted into the recessed portion 133a of the holding portion 133 and assembled into the recessed portion 132a of the fitting portion 132 at the same time. . This makes it possible to connect the lower head 120 and the upper head 110 in a state in which the upper head 110 can be lifted from the lower head 120 by a predetermined distance, as described below.

FIG. 6 shows that the connecting means 130 (that is, the fitting portion 132 of the lower head 120, the holding portion 133 of the upper head 110, and the ring 131) connect the lower head 120 and the upper head 110 by a predetermined distance. FIG. 10 is an explanatory diagram showing how the connection is made while allowing the movement of the . FIG. 6 shows a cross-sectional view in which the burner head 100 is cut at a portion where the fitting portion 132 is erected from the lower head 120, and the portion of the fitting portion 132 is enlarged. 6A shows a state in which the upper head 110 is placed on the lower head 120, and FIG. 6B shows a state in which the upper head 110 is slightly lifted from the lower head 120. FIG. represent. Furthermore, FIG. 6(c) shows a state in which the upper head 110 is pulled up to the maximum. As described above with reference to FIG. 5, the ring 131 is held by the holding portion 133 of the upper head 110, so when the upper head 110 is pulled up, the ring 131 is also pulled up. At this time, the ring 131 rises inside the recess 132 a formed on the side surface of the fitting portion 132 . Then, as shown in FIG. 6C, after the ring 131 reaches the upper end of the recess 132a, when the upper head 110 is pulled up further, the lower head 120 is also pulled up.

Thus, in the burner head 100 of the modified example of the first embodiment, the lower head 120 and the upper head 110 are connected to each other while allowing a predetermined distance. Therefore, even if a water seal is generated by washing the burner head 100 with water, the water seal can be easily eliminated by slightly pulling up the upper head 110 as shown in FIG. 6(b). Further, since the lower head 120 and the upper head 110 are connected, there is no risk of forgetting to set one of the lower head 120 and the upper head 110 to the burner body 11 even though the other is set. In addition, as shown in FIG. 6(c), the upper head 110 can be pulled up with respect to the lower head 120, so that the upper head 120 can be moved between the lower partition wall 123 and the protruded wall 124, or on the upper side. It is possible to easily clean between the upper partition wall 113 and the projecting wall 114 of the head 110 .

In the stove burner 1 of the first embodiment described above, the lower head 120 made of casting, forging, or die casting is placed on the burner body 11 made of sheet metal, and on the lower head 120, the casting The description has been given assuming that the upper head 110 made of steel, forging, or die casting is mounted, and that a plurality of flame ports 101 are formed between the lower head 120 and the upper head 110 . However, by placing a cast, forged, or die-cast burner head on a cast, forged, or die-cast burner body, multiple flame ports are formed between the burner body and the burner head. The invention of the present application can also be applied to such stove burners. Such a second embodiment will be described below.

FIG. 7 is an explanatory diagram showing the rough structure of the stove burner 5 of the second embodiment. As illustrated, the stove burner 5 of the second embodiment includes a cast, forged, or die-cast burner body 50, a cast, forged, or die-cast burner head 60, an ignition plug 20, and a flame. A detection sensor 30 and the like are provided.

A cylindrical burner body 51 protrudes upward from the burner main body 50 , and the burner head 60 is mounted on the upper end surface of the burner body 51 . Also, at a position adjacent to the burner body 51, the ignition plug 20 and the flame detection sensor 30 are assembled with the upper part protruding from the burner body 50. - 特許庁Here, as shown in FIG. 7, on the upper end surface of the burner body 51, as with the lower head 120 of the first embodiment, a plurality of lower partition walls 123 and projecting walls 124 are directed upward. protruded. The lower partition wall 123 and the protrusion wall 124 protruding from the upper end surface of the burner body 51 of the second embodiment are similar to the lower partition wall 123 protruding from the upper surface of the lower head 120 of the first embodiment. , and the projecting wall 124, the description thereof is omitted here.

The burner head 60 includes an annular body portion 61 having a through hole 61a formed in the center thereof, and a cylindrical partition wall projecting downward from the lower surface of the body portion 61 coaxially with the through hole 61a. a portion 62; A plurality of upper partition walls 113 and projecting walls 114 protrude downward from the outer edge portion of the lower surface of the body portion 61, similarly to the upper head 110 of the first embodiment. However, one of the projecting walls 114 is formed with an ignition target 60t like the lower head 120 of the first embodiment. The upper partition wall 113 and the protrusion wall 114 protruding from the lower surface of the burner head 60 of the second embodiment are similar to the upper partition wall 113 and the protrusion wall 114 that protrude from the lower surface of the upper head 110 of the first embodiment. , so the description is omitted here.

In the stove burner 5 of the second embodiment as described above, by placing the burner head 60 on the burner body 51, the lower partition wall 123 erected upward from the burner body 51 and the burner head 60 A plurality of flame ports 101 can be formed between the upper partition wall 113 and the upper partition wall 113 erected downward (see FIG. 3(b)). Also, even if a water seal occurs at the flame port 101, the water seal can be eliminated by slightly pulling up the burner head 60 (see FIG. 4). In addition, a sufficient space must be secured between the lower partition walls 123 erected from the burner body 51 and between the upper partition walls 113 erected from the burner head 60. Therefore, even if the burner head 60 is covered with boiled juice, the boiled juice can be easily cleaned.

Although the stove burners 1 and 5 of various embodiments and modifications have been described above, the present invention is not limited to the above embodiments and modifications, and can be implemented in various forms without departing from the scope of the invention. It is possible.

1... Stove burner, 5... Stove burner, 10... Burner body,
11... Burner body, 12... Mixing passage, 13... Mixing passage,
14... Pipe member, 15... Mixing chamber, 16... Intermediate body,
20... Spark plug, 30... Flame detection sensor, 50... Burner body,
51... Burner body, 60... Burner head, 60t... Ignition target,
61... Main body part, 62... Partition part, 100... Burner head,
101... flame mouth, 102... small flame mouth, 110... upper head,
111...Main body part, 113...Upper partition wall, 114...Protruding wall,
120...Lower head 120t...Ignition target 121...Partition wall,
122... Expanded diameter portion, 123... Lower partition wall, 124... Protruding wall,
130... Connecting means, 131... Ring, 131t... Knob part,
132... Fitting portion, 132a... Recessed portion, 133... Holding portion, 133a... Recessed portion.

Claims (4)

A stove burner that mixes fuel gas and combustion air in a mixing passage to form a mixed gas, and burns the mixed gas by flowing out from a plurality of flame ports,
The plurality of flame ports are formed by placing an annular upper member on an annular lower member,
The upper surface of the lower member on which the upper member is placed has a plurality of lower partition walls projecting upward radially from the center of the annular shape,
A plurality of upper partition walls radially protrude downward from the center of the annular shape on the lower surface of the upper member placed on the lower member,
In the upper member, the upper partition wall protruding downward from the lower surface and the lower partition wall protruding upward from the upper surface of the lower member are arranged alternately in the circumferential direction of the annular shape. placed on the lower member,
The plurality of flame ports are formed in a gap between the lower partition wall and the upper partition wall by placing the upper member on the lower member , and form the flame ports. The one side wall forming the flame port is formed only by the lower partition wall, and the other side wall forming the flame port is formed only by the upper partition wall.
A stove burner characterized by: In the stove burner according to claim 1,
a burner body to which the mixing passage is connected and into which the mixed gas flows from the mixing passage;
A burner head mounted on the burner body and having the plurality of flame ports formed on an annular outer peripheral side surface,
The burner head is formed by placing an annular upper head on an annular lower head,
the lower member is the lower head;
A stove burner, wherein the upper member is the upper head. In the stove burner according to claim 2,
A stove burner, wherein the upper head and the lower head are connected to each other by a connecting means while allowing one to move a predetermined distance with respect to the other so that they are not separated from each other. In the stove burner according to claim 1,
an annular burner body to which the mixing passage is connected and into which the mixed gas flows;
an annular burner head that is placed on the burner body to form a plurality of flame ports between itself and the burner body,
The lower member is the burner body,
A stove burner, wherein the upper member is the burner head.

Images