阅读说明：本技术 一种新型红外燃烧器 (Novel infrared burner ) 是由 刘凯 陈琦 潘叶江 于 2020-11-10 设计创作，主要内容包括：本发明公开了一种新型红外燃烧器,包括炉头和燃烧板,所述炉头设有复数个沿周向方向交错布置的内环气腔和外环气腔,所述内环气腔和外环气腔的顶部均具有开口,所述燃烧板设置于所述炉头上,并且所述燃烧板覆盖所述内环气腔和所述外环气腔的开口。本发明的红外燃烧器,燃气经过炉头的分气后,在燃烧板上表面燃烧时可以形成沿周向方向交错布置的小火区和大火区,相比于现有小火只在径向内侧的红外燃烧器,小火火力在径向方向分布更均匀,避免小火火力过于集中在内侧,有效解决了现有小火火力过于集中在径向内侧而造成食物加热不均匀的问题,提升用户的烹饪体验,同时小火形态差异化更明显。(The invention discloses a novel infrared burner which comprises a burner head and a combustion plate, wherein the burner head is provided with a plurality of inner ring air cavities and outer ring air cavities which are staggered along the circumferential direction, the tops of the inner ring air cavities and the outer ring air cavities are provided with openings, the combustion plate is arranged on the burner head, and the combustion plate covers the openings of the inner ring air cavities and the outer ring air cavities. According to the infrared burner, after gas is distributed through the burner head, small fire areas and large fire areas which are arranged in a staggered mode along the circumferential direction can be formed when the gas is combusted on the upper surface of the combustion plate, compared with the existing infrared burner with small fire only on the radial inner side, the small fire power is distributed more uniformly in the radial direction, the situation that the small fire power is excessively concentrated on the inner side is avoided, the problem that food heating is uneven due to the fact that the existing small fire power is excessively concentrated on the radial inner side is effectively solved, cooking experience of users is improved, and meanwhile the small fire shape difference is more obvious.)

1. The utility model provides a novel infrared burner, includes furnace end (1) and combustion plate (2), its characterized in that, furnace end (1) is equipped with a plurality of inner ring air cavity (11) and outer loop air cavity (12) along circumference direction staggered arrangement, the top of inner ring air cavity (11) and outer loop air cavity (12) all has the opening, combustion plate (2) set up in on furnace end (1), and combustion plate (2) cover inner ring air cavity (11) with the opening of outer loop air cavity (12).

2. The novel infrared burner as claimed in claim 1, characterized in that the inner ring air chambers (11) and the outer ring air chambers (12) are each fan-shaped, all the inner ring air chambers (11) are arranged at regular intervals in the circumferential direction, correspondingly, the burner plate (2) is formed with small fire zones (21) arranged at regular intervals in the circumferential direction, and a large fire zone (22) located between two adjacent small fire zones (21).

3. The new infrared burner as claimed in claim 2, characterized in that there are several fire holes in said small fire zone (21), or there are several small fire rings (211) spaced in radial direction in said small fire zone (11), there are several fire holes on said small fire rings (211).

4. The novel infrared burner as claimed in any one of claims 1 to 3, characterized in that all the inner ring air cavities (11) are respectively communicated with different inner ejector pipes;

or the two inner ring air cavities (11) which are oppositely arranged in the radial direction are respectively communicated with the same inner injection pipe;

or a first air passage (110) is arranged in each outer ring air cavity (12), two adjacent inner ring air cavities (11) are communicated through the first air passages (110), and one inner ring air cavity (11) is communicated with an inner ejector pipe.

5. The novel infrared burner as claimed in claim 4, characterized in that all the outer ring air cavities (12) are respectively communicated with different outer ejector pipes;

or the two outer ring air cavities (12) which are oppositely arranged in the radial direction are respectively communicated with the same outer injection pipe;

or a second air passage (120) is arranged in the inner part or at the bottom of each inner ring air cavity (11), two adjacent outer ring air cavities (12) are communicated through the second air passages (120), and one outer ring air cavity (12) is communicated with an outer ejector pipe.

6. The novel infrared burner as claimed in claim 5, wherein a first air inlet portion (101) and a second air inlet portion (102) which protrude outwards are arranged at the bottom of the burner head (1), an inlet of the first air inlet portion (101) is communicated with an inner ejector pipe, an outlet of the first air inlet portion (101) is communicated with one of the inner ring air cavities (11), an inlet of the second air inlet portion (102) is communicated with an outer ejector pipe, and an outlet of the second air inlet portion (102) is communicated with one of the outer ring air cavities (12).

7. The new infrared burner according to claim 6, characterized in that said first intake portion (101) and said second intake portion (102) are each integrally formed with said burner head (1).

8. The novel infrared burner as claimed in claim 6, characterized in that the bottom of the burner head (1) is provided with inwardly concave mounting cavities (103) at positions corresponding to the inlets of the first air intake portion (101) and the second air intake portion (102), respectively.

9. The new infrared burner according to claim 1, characterized in that a plurality of middle ring air cavities arranged at intervals along the radial direction are arranged inside the outer ring air cavity (12), or a middle ring air cavity is arranged between the adjacent inner ring air cavity (11) and the outer ring air cavity (12), and a middle fire area (23) is formed on the combustion plate (2) corresponding to the middle ring air cavity.

10. The novel infrared burner as claimed in claim 9, wherein all the medium annular chambers are respectively communicated with different medium ejector pipes; or the furnace end (1) is also provided with a third air passage, the adjacent middle air cavity is communicated through the third air passage, and one middle air cavity is communicated with the middle ejector pipe.

Technical Field

The invention relates to the technical field of cooking utensils, in particular to a novel infrared burner.

Background

The infrared stove is more and more popular with consumers because of higher thermal efficiency and better heating uniformity, the fire power of the infrared stove is divided into a big fire outside and a small fire inside, the infrared stove is heated mainly by heat radiation, and the fire power of the small fire is excessively concentrated on the inside. Big fire is suitable for quick-frying, medium fire is suitable for cooking, but in the use scene that needs the culinary art of small fire such as small fire pancake, small fire fried egg, the food that middle small fire ring territory firepower is too big is easily burnt, and other regional food are difficult to be ripe, influence user's culinary art experience.

In addition, in the gas stoves on the market, the fire outlets of the burners are mostly distributed according to an annular area, and the difference of the burning flame forms is small.

Disclosure of Invention

The invention aims to solve at least one of the problems in the prior related art to a certain extent, and therefore the invention provides a novel infrared burner which is larger in small fire distribution area and more uniform in distribution of small fire power in the radial direction, and effectively solves the problem that food heating is not uniform due to the fact that the existing small fire power is excessively concentrated on the radial inner side.

According to the novel infrared burner provided by the above, the technical scheme is as follows:

the utility model provides a novel infrared burner, includes furnace end and burning plate, wherein the furnace end is equipped with a plurality of inner ring air cavities and outer ring air cavity along circumference direction staggered arrangement, the top of inner ring air cavity and outer ring air cavity all has the opening, the burning plate set up in on the furnace end, and the burning plate covers the inner ring air cavity with the opening of outer ring air cavity.

In some embodiments, the inner ring air cavity and the outer ring air cavity are both fan-shaped, all the inner ring air cavities are uniformly arranged at intervals along the circumferential direction, and correspondingly, the combustion plate is formed with small fire zones uniformly arranged at intervals along the circumferential direction and a big fire zone located between two adjacent small fire zones.

In some embodiments, a plurality of fire holes are provided in the small fire zone, or a plurality of small fire rings are provided in the small fire zone and spaced apart in the radial direction, and a plurality of fire holes are provided in the small fire rings.

In some embodiments, all of the inner ring air cavities are respectively communicated with different inner ejector pipes; or the two inner ring air cavities oppositely arranged in the radial direction are respectively communicated with the same inner injection pipe; or a first air passage is arranged in each outer ring air cavity, two adjacent inner ring air cavities are communicated through the first air passages, and one inner ring air cavity is communicated with an inner ejector pipe.

In some embodiments, all the outer ring air cavities are respectively communicated with different outer ejector pipes; or the two outer ring air cavities oppositely arranged in the radial direction are respectively communicated with the same outer injection pipe; or a second air passage is arranged in or at the bottom of each inner ring air cavity, two adjacent outer ring air cavities are communicated through the second air passages, and one outer ring air cavity is communicated with an outer injection pipe.

In some embodiments, the bottom of the burner is provided with a first air inlet portion and a second air inlet portion protruding outwards, an inlet of the first air inlet portion is communicated with the inner ejector tube, an outlet of the first air inlet portion is communicated with one of the inner annular air cavities, an inlet of the second air inlet portion is communicated with the outer ejector tube, and an outlet of the second air inlet portion is communicated with one of the outer annular air cavities.

In some embodiments, the first air inlet portion and the second air inlet portion are each integrally formed with the burner.

In some embodiments, the bottom of the burner is provided with inwardly recessed mounting cavities at positions corresponding to the first inlet and the second inlet, respectively.

In some embodiments, a plurality of middle ring air cavities arranged at intervals along the radial direction are arranged inside the outer ring air cavity, or a middle ring air cavity is arranged between the adjacent inner ring air cavities and the outer ring air cavity, and a middle fire region is formed at the position of the combustion plate corresponding to the middle ring air cavity.

In some embodiments, all the medium annular cavities are respectively communicated with different medium ejector pipes; or the furnace end is also provided with a third air passage, the adjacent middle air cavity is communicated through the third air passage, and one middle air cavity is communicated with a middle ejector pipe.

Compared with the prior art, the invention at least comprises the following beneficial effects:

1. according to the infrared burner, after gas is distributed through the burner head, small fire areas and large fire areas which are staggered in the circumferential direction can be formed when the gas is combusted on the upper surface of the combustion plate, and compared with the existing infrared burner with small fire only on the radial inner side, the small fire power is more uniformly distributed in the radial direction, so that the situation that the small fire power is excessively concentrated on the radial inner side is avoided, the problem that food is heated unevenly due to the fact that the existing small fire power is excessively concentrated on the radial inner side is effectively solved, and the cooking experience of a user is improved;

2. through addding the central through-hole that runs through furnace end and burning plate, realize for ignition needle or ignition flame-out protection device's installation position to still can promote radial inboard burning sufficiency for burning plate radially inwards supplyes secondary air.

Drawings

FIG. 1 is an exploded view of a two-ring infrared burner in embodiment 1 of the present invention;

fig. 2 is a sectional view of a burner in embodiment 1 of the present invention;

FIG. 3 is a cross-sectional view of a burner at another angle in embodiment 1 of the present invention;

FIG. 4 is a schematic view of a burner block according to embodiment 1 of the present invention

FIG. 5 is a schematic structural view of another low flame mode of the two-ring infrared combustor in the embodiment 2 of the present invention;

FIG. 6 is a schematic view showing the construction of a two-ring infrared burner in embodiment 2 of the present invention;

FIG. 7 is a schematic structural view of a three-ring infrared burner in embodiment 3 of the present invention;

FIG. 8 is a schematic view showing the structure of a three-ring infrared burner in embodiment 4 of the present invention.

Detailed Description

The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.

Example 1

Referring to fig. 1 to 4, the present embodiment provides a novel infrared burner, which includes a burner head 1 and a combustion plate 2 having fire holes, wherein the burner head 1 is provided with a plurality of inner ring air cavities 11 and outer ring air cavities 12 staggered along a circumferential direction, the tops of the inner ring air cavities 11 and the outer ring air cavities 12 are provided with openings, the inner ring air cavities 11 and the outer ring air cavities 12 are both extended to the radial outside from the radial inside of the burner head 1, so that the burner head 1 has a plurality of inner ring air cavities 11 spaced apart from each other, and each inner ring air cavity 11 is extended to the radial outside from the radial inside, so that the area of the inner ring air cavities 11 is relatively large. Combustion plate 2 sets up on furnace end 1, and combustion plate 2 covers the opening of whole inner ring air cavity 11 and the opening of whole outer ring air cavity 12, like this, when the gas upwards transmits to the combustion plate 2 top burning from furnace end 1, 2 upper surfaces of combustion plate can form a plurality of little fire district 21 and big fire district 22 along circumference direction staggered arrangement, and then make the combustor have two kinds of firepower of big fire and little fire, because the total area of little fire district 21 is great relatively, and it is more even to distribute at radial direction, make little fire firepower can not too concentrate on radial inboard, thereby solved current little fire firepower and too concentrated on radial inboard and cause the inhomogeneous problem of food heating. In embodiments, a plurality refers to two or more.

It is visible, the infrared burner of this embodiment, through set up a plurality of inner ring air cavity 11 and the outer loop air cavity 12 along circumference direction staggered arrangement on furnace end 1, make every inner ring air cavity 11 extend to the radial outside from furnace end 1's radial inboard, thereby make the gas after furnace end 1's branch gas, can form along circumference direction staggered arrangement's little fire district 21 and big fire district 22 when 2 upper surface combustion of burner plate, compare in the infrared burner of present little fire only at radial inboard, the little fire district 21 total area of this product is bigger, and little fire is more even in radial direction distribution, avoid little fire too concentrating at radial inboard, effectively solved present little fire too concentrated at radial inboard and cause the inhomogeneous problem of food heating, promote user's culinary art and experience. In addition, compared with the annular small fire of the existing product, the small fire of the invention has more obvious shape differentiation.

Preferably, inner ring air cavity 11 and outer ring air cavity 12 are all fan-shaped, and all inner ring air cavities 11 are arranged along the even interval of circumferential direction, and correspondingly, when the gas passes through the branch gas of furnace end 1 and when the surface burns on combustion plate 2, combustion plate 2 can be formed with along the even interval of circumferential direction arrange little fire district 21, and be located the big fire district 22 between two adjacent little fire districts 21. From this, when guaranteeing the homogeneity that the small fire firepower distributes in radial direction, further guarantee the homogeneity that the small fire firepower distributes in the circumference direction to effectively guarantee the heating homogeneity of small fire culinary art food, promote user's small fire culinary art and experience.

Referring to fig. 1, in the present embodiment, a plurality of fire holes are preferably formed in both the small fire zone 21 and the large fire zone 22 of the combustion plate 2, so that when gas is combusted on the upper surface of the small fire zone 21, a sector-shaped small fire combustion area is formed. In other embodiments, referring to fig. 5, a plurality of fire holes are formed in the big fire zone 22 of the combustion plate 2, and a plurality of small fire rings 211 are formed in the small fire zone 11 of the combustion plate 2 at intervals in the radial direction, and a plurality of fire holes are formed in the small fire rings 211, so that when the gas is combusted on the upper surface of the small fire zone 21, a fan-shaped small fire combustion area consisting of a plurality of small fire rings is formed.

The present embodiment exemplifies that the number of the inner ring air chambers 11 and the outer ring air chambers 12 is two.

The air supply manner of the inner ring air chamber 11 of the burner 1 is specifically as follows: firstly, the furnace end 1 is provided with inner injection pipes (not shown in the figure) with the same number as the inner ring air cavities 11, and all the inner ring air cavities 11 are respectively communicated with different inner injection pipes, so that the inner injection pipes and the inner ring air cavities 11 are arranged in a one-to-one correspondence manner, a user can conveniently adjust the firepower of small fire according to cooking requirements, and the firepower gear of the small fire is finer; secondly, the furnace end 1 is provided with a plurality of inner injection pipes, the number of the inner injection pipes is half of that of the inner ring air cavities 11, the two inner ring air cavities 11 which are oppositely arranged in the radial direction are respectively communicated with the same inner injection pipe, namely, the two inner ring air cavities 11 which are positioned on the same diameter of the furnace end 1 are supplied with air by the same inner injection pipe, so that on one hand, a user can conveniently adjust the firepower of small fire according to cooking requirements, the firepower gear of the small fire is finer, and on the other hand, the heating uniformity of the small fire in the circumferential direction is ensured; and thirdly, referring to fig. 1 to 3, a first air passage 110 is arranged in each outer ring air cavity 12, two adjacent inner ring air cavities 11 are communicated through the first air passages 110, one of the inner ring air cavities 11 is communicated with an inner ejector pipe, so that one outer ejector pipe supplies air to all the inner ring air cavities 11, the air source on-off condition of all the inner ring air cavities 11 can be synchronously controlled, and the flameout or combustion state of small fire of the infrared burner can be synchronously controlled.

The air supply manner with respect to the outer annular air chamber 12 of the burner 1 is specifically as follows: firstly, the furnace end 1 is provided with outer ejector pipes (not shown in the figure) with the same number as the outer ring air cavities 12, and all the outer ring air cavities 12 are respectively communicated with different outer ejector pipes, so that the outer ejector pipes and the outer ring air cavities 12 are arranged in a one-to-one correspondence manner, a user can conveniently adjust the fire power of a big fire according to cooking requirements, and the fire power gear of the big fire is finer; secondly, the furnace end 1 is provided with a plurality of outer ejector pipes, the number of the outer ejector pipes is half of that of the outer ring air cavities 12, the two outer ring air cavities 12 which are oppositely arranged in the radial direction are respectively communicated with the same outer ejector pipe, namely, the two outer ring air cavities 12 on the same diameter of the furnace end 1 are supplied with air by the same outer ejector pipe, so that a user can conveniently adjust the firepower of a big fire according to cooking requirements, and the firepower gear of the big fire is finer; and thirdly, referring to fig. 1 and 3, a second air passage 120 is arranged inside or at the bottom of each inner ring air cavity 11, the second air passage 120 of the embodiment is arranged at the bottom of the radial outer side of the inner ring air cavity 11, two adjacent outer ring air cavities 12 are communicated through the second air passage 120, one outer ring air cavity 12 is communicated with an outer ejector pipe, and thus, one outer ejector pipe supplies air to all the outer ring air cavities 12, so that the air source on-off condition of all the outer ring air cavities 12 can be synchronously controlled, and further, the flameout or combustion state of the big fire of the infrared burner can be synchronously controlled.

In this embodiment, the third air supply mode is adopted for the inner ring air chamber 11 and the third air supply mode is adopted for the outer ring air chamber 12. Referring to fig. 4, specifically, a first air inlet portion 101 and a second air inlet portion 102 protruding outwards are provided at the bottom of the burner head 1, wherein an inlet of the first air inlet portion 101 communicates with the inner ejector pipe, and an outlet of the first air inlet portion 101 communicates with one of the inner annular air cavities 11. The inlet of the second air inlet portion 102 is communicated with the outer ejector pipe, and the outlet of the second air inlet portion 102 is communicated with one of the outer ring air cavities 12. Therefore, the integral structure of the product can be simplified, the combustion or flameout states of small fire and large fire can be synchronously controlled, and the control logic is simplified.

Preferably, the first air inlet 101 and the second air inlet 102 of the present embodiment are respectively located at two opposite sides of the central through hole, the inner injection pipe is communicated with the inner annular air cavity 11 close to the central through hole through the first air inlet 101, and the outer injection pipe is communicated with the outer annular air cavity 12 far away from the central through hole through the second air inlet 102, so that sufficient space for arranging the first air inlet 101 and the second air inlet 102 is ensured at the bottom of the burner 1.

More preferably, the first air inlet 101 and the second air inlet 102 are integrally formed with the burner 1, respectively, so that the first air inlet 101 and the second air inlet 102 can be rapidly formed, which is beneficial to reducing the assembly process, and meanwhile, the air leakage at the joint of the first air inlet 101 and the inner annular air cavity 11 near the inner side and the air leakage at the joint of the second air inlet 102 and the outer annular air cavity 12 near the outer side can be prevented.

In the present embodiment, the unit intake area of the first intake portion 101 is smaller than the unit intake area of the second intake portion 102, so as to better satisfy the amount of gas required for small and large fire combustion and ensure combustion thermal efficiency.

Referring to fig. 4, specifically, furnace end 1 bottom is equipped with the installation cavity 103 sunken inwards respectively in the position department that corresponds first portion 101 entry and second portion 102 entry of admitting air, and like this, through the setting of installation cavity 103, draw tub and second portion 102 of admitting air and draw the connection of tub with the outer space that provides enough big for first portion 101 of admitting air and interior draw, draw in more convenient more and draw tub and furnace end 1's being connected outward, can shorten infrared burner height in vertical direction simultaneously, do benefit to and reduce infrared kitchen in the thickness of vertical direction.

Referring to fig. 1, the infrared burner of this embodiment further has a central through hole, the central through hole sequentially penetrates through the burner 1 and the combustion plate 2 from bottom to top, and is used for installing an ignition needle or an ignition and flameout protection device of the infrared burner, and if necessary, the central through hole can also be used for supplementing secondary air to the radial inner side of the combustion plate 2, so as to further improve the combustion sufficiency of the combustion plate 2 at the radial inner side. Specifically, a burner center hole 13 is formed in the center of the burner 1, a combustion plate center hole 23 is formed in the position, corresponding to the burner center hole 13, of the combustion plate 2, and when the combustion plate 2 is covered on the burner 1, the combustion plate center hole 23 is communicated with the burner center hole 13 and mutually forms a center through hole of the infrared burner.

Example 2

Referring to fig. 6, the present embodiment is different from embodiment 1 in the number of inner ring air chambers 11 and outer ring air chambers 12. Specifically, in order to make the small fire power of the infrared burner distribute more evenly in the circumferential direction, be equipped with more than three along the inner ring air cavity 11 of circumferential direction interval arrangement on furnace end 1, and be located the outer ring air cavity 12 between two adjacent inner ring air cavities 11, thus, make the branch gas of furnace end 1 more meticulous, and then make the gas through the branch gas of furnace end 1 and when the surface combustion is gone up to combustion plate 2, can form single area littleer and the more little fire district 21 and big fire district 22 of quantity, make the quantity of little fire district 11 more, little fire power distributes more evenly.

In this embodiment, the number of the inner ring air chambers 11 and the number of the outer ring air chambers 12 are 6, and correspondingly, 6 small fire zones 21 and 6 big fire zones 22 can be formed on the upper surface of the combustion plate 2. Two adjacent inner ring air cavities 11 are communicated through a first air passage 110, wherein one inner ring air cavity 11 is communicated with an inner ejector pipe; two adjacent outer ring air cavities 12 are communicated through the second air passage 120, and one outer ring air cavity 12 is communicated with the outer ejector pipe.

It can be seen that by arranging more inner ring air cavities 11 and outer ring air cavities 12 on the burner head 1, the infrared burner is provided with more small fire zones 21, the total area of the small fire combustion zone is larger, the distribution of the small fire power in the circumferential direction and the radial direction is more uniform, and the small fire heating uniformity is obviously improved.

Example 3

Referring to fig. 7, the present embodiment is different from embodiment 1 in that the burner 1 is further provided with an intermediate air chamber. Specifically, a middle ring air chamber having an upward opening is provided between the adjacent inner ring air chamber 11 and outer ring air chamber 12, and when gas is upwardly transferred from the middle ring air chamber of the burner 1 to the combustion plate 2, a middle fire zone 23 may be formed between the adjacent small fire zone 21 and large fire zone 22, so that the infrared burner has three kinds of fire of small fire, large fire and middle fire.

There are two ways for the medium air cavity air supply scheme: firstly, the furnace end 1 is provided with a plurality of middle ejector pipes, the number of the middle ejector pipes is equal to that of middle ring air cavities, and all the middle ring air cavities are respectively communicated with different middle ejector pipes, so that the middle ejector pipes and the middle ring air cavities are arranged in a one-to-one correspondence manner, and therefore, on one hand, a user can conveniently adjust the middle fire power according to cooking requirements, the fire gear of the middle fire is finer, on the other hand, the middle fire is more uniformly distributed in the radial direction, and the heating uniformity of the middle fire power is ensured; secondly, the furnace end 1 is also provided with a third air passage (not shown in the figure), the adjacent middle air cavities are communicated through the third air passage, one middle air cavity is communicated with the middle ejector pipe, and thus, the flameout or middle fire combustion state of all the middle air cavities 1 can be synchronously controlled.

Therefore, the middle ring air cavity between the adjacent inner ring air cavity 11 and the outer ring air cavity 12 is additionally arranged on the burner 1, so that the air distribution of the burner 1 is finer, the upper surface of the combustion plate 2 can form a plurality of fan-shaped middle fire areas 23, and the firepower can be controlled by a user more conveniently and accurately. In addition, compared with the annular middle fire of the existing product, the shape of the middle fire of the invention is obviously differentiated.

Example 4

Referring to fig. 8, the present embodiment is different from embodiment 1 in that the structure of the outer ring air chamber 12 is different. Specifically, a plurality of middle annular chambers (not shown in the figure) arranged at intervals along the radial direction are arranged inside the outer annular chamber 12, all the middle annular chambers are respectively communicated with different middle ejector pipes, or adjacent middle annular chambers are communicated through a third air passage (not shown in the figure), wherein one middle annular chamber is communicated with the middle ejector pipe. When the gas is transferred upward from the middle annular chamber of the burner head 1 to the combustion plate 2, a middle fire zone 23 can be formed in the large fire zone 22 so that the infrared burner has middle fire power in addition to small and large fire power.

It can be seen that by providing at least one middle ring air chamber in the outer ring air chamber 12, the product is provided with a middle fire zone 23, which facilitates the user to adjust the big, middle and small fire of the infrared burner according to the cooking requirement. In addition, compared with the annular middle fire of the existing product, the shape of the middle fire of the invention is obviously differentiated.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.