CN219913057U - Burner of burner for gas stove, burner and gas stove - Google Patents

Abstract

The embodiment of the utility model relates to a burner of a burner for a gas stove, the burner and the gas stove. The furnace end includes: the fire cover is arranged on the fire cover base; the fire cover base is provided with a first concave part which is concave downwards, the fire cover is provided with a second concave part which is concave upwards and corresponds to the first concave part, and the first concave part and the second concave part define a gas mixing cavity; the gas mixing device also comprises an air channel communicated with the gas mixing cavity, wherein a fire transmission structure communicated with the air channel and the gas mixing cavity is arranged in the air channel; the air channel is provided with an air inflow opening which is positioned at the inner edge of the fire cover base and is used for inflow of secondary air, and an air outflow opening which is positioned at the outer edge of the fire cover base and is opposite to the air inflow opening and is used for outflow of secondary air; the fire cover is provided with a notch communicated with the first vent hole, the notch is provided with a visible opening which is exposed upwards, and secondary air enters the air channel through the air inflow opening and the notch to supplement secondary air for the fire transmission structure.

Description

Burner of burner for gas stove, burner and gas stove

[ field of technology ]

The embodiment of the utility model relates to the field of gas cookers, in particular to a burner of a burner for a gas cooker, the burner and the gas cooker.

[ background Art ]

Prior art CN111578319B discloses a gas cooker, which comprises an inner ring burner, the inner ring burner is provided with a fire protection hole and a main fire hole which are communicated with a gas chamber, and is also provided with an accommodation space which is separated from the outside, the fire protection hole is arranged in the accommodation space, the main fire hole is arranged outside the accommodation space, the gas cooker further comprises a hidden fire transmission structure, and the hidden fire transmission structure is used for transmitting flame between the fire protection hole and the main fire hole. The prior art has the technical problems of insufficient secondary air supplement, unstable fire transmission and the like.

[ utility model ]

An object of an embodiment of the present utility model is to provide a burner for improving a burner for a gas range, a burner, and a gas range, which aim to at least one of the above technical problems.

In order to achieve the above object, an aspect of an embodiment of the present utility model relates to a burner of a burner for a gas range. The furnace end includes: the fire cover is arranged on the fire cover base; the fire cover base is provided with a first concave part which is concave downwards, the fire cover is provided with a second concave part which is concave upwards and corresponds to the first concave part, and the first concave part and the second concave part define a gas mixing cavity for containing gas; the gas mixing device also comprises an air channel communicated with the gas mixing cavity, wherein a fire transmission structure communicated with the air channel and the gas mixing cavity is arranged in the air channel; the air channel is provided with an air inflow opening which is positioned at the inner edge of the fire cover base and is used for inflow of secondary air, and an air outflow opening which is positioned at the outer edge of the fire cover base and is opposite to the air inflow opening and is used for outflow of secondary air; the fire cover is provided with a notch communicated with the first vent hole, the notch is provided with a visible opening which is exposed upwards, and secondary air enters the air channel through the air inflow opening and the notch to supplement secondary air for the fire transfer structure.

With this structure, by providing the notch corresponding to the air inlet on the fire cover, the secondary air can enter the air passage through the air inlet and the notch to supplement the secondary air for the fire transfer mechanism and then flow out through the air outlet. The size of the inlet opening of the secondary air inflow air channel can be increased, sufficient secondary air can be supplemented for the fire transfer structure, the combustion space of the fire transfer structure can be increased, and the problem of poor flame transfer caused by insufficient secondary air supplementing or limited fire transfer space can be solved. Thereby improving the fire power, the fire speed and the fire performance.

Simultaneously, pass the fire structure setting in air channel, can prevent that food waste from plugging up and passing the fire structure and cause the unable possibility of transmitting of flame, further guarantee and pass the fire effect.

In a possible embodiment, the notch is configured such that at least a portion of the air channel is exposed to the notch. The secondary air can enter the air channel more, more sufficient secondary air and enough combustion space are supplemented for the fire transfer structure, so that combustion flame of the fire transfer structure is more stable and uniform, and the fire transfer power is further improved.

In a possible embodiment, the projection of the notch on the horizontal plane at least partially overlaps the air channel.

In a possible embodiment, the fire cover has oppositely disposed inner and outer side walls and an annular wall between the inner and outer side walls, the gap extending from the inner side wall in a direction of the annular wall toward the outer side wall. This is favorable to the manufacturing of breach, improves the production efficiency of fire lid and whole combustor.

In a possible embodiment, the notch extends through the inner sidewall. Thus, the portion of the inner side wall corresponding to the air passage does not block the entry of secondary air, so that sufficient secondary air can smoothly enter the air passage.

In a possible embodiment, the fire transfer structure comprises a first fire transfer hole adjacent to the gap and a second fire transfer hole adjacent to the first fire transfer hole, the first fire transfer hole being ignited and then the second fire transfer hole being ignited, the first fire transfer hole being exposed at the gap. Thus, the first fire transfer holes are exposed at the gaps, so that the first fire transfer holes can be sufficiently supplemented with secondary air, and the secondary air supplementing speed is faster. The first fire transfer holes are ignited to form flames, and the flames inevitably ignite the second fire transfer holes, so that quick fire transfer can be realized, and the fire transfer power is effectively improved.

In a possible embodiment, the inner diameter of the notch is greater than or equal to 3 mm and less than or equal to 8 mm. This not only reduces the impact of excessive gaps on the strength of the fire cover, but also reduces secondary air replenishment that affects the fire transfer structure due to excessive gaps.

In a possible embodiment, the notch has an inner diameter of 3 mm. This not only allows the fire transfer structure to obtain sufficient secondary air, but also does not affect the strength of the fire cover itself.

In a possible embodiment, the notch is an arcuate structure having a radius of curvature. The notch is favorable for forming the notch on the fire cover, is convenient to process and easy to apply, and can also be directly processed and formed on the existing fire cover product.

In a possible embodiment, the indentations are semi-circular in configuration. The notch is favorable for forming the notch on the fire cover, is convenient to process and easy to apply, and can also be directly processed and formed on the existing fire cover product.

In a possible embodiment, the air passage has a pair of oppositely disposed sides, and the fire passing structure is disposed on the oppositely disposed sides. Therefore, the fire transmission structure is arranged on two sides of the air channel, so that fire can be transmitted from different directions, and the fire transmission speed is improved.

In a possible embodiment, the fire passing structure comprises a fire passing groove or a fire passing hole.

In a possible embodiment, the fire cover base has a recess formed by a downward depression, the recess having a bottom surface which extends obliquely downward in a direction from the air outlet to the air inflow opening and beyond an inner edge of the fire cover base and forms a tongue, the indentation being located above the tongue. The air inlet has enough space, so that not only can secondary air flow fully, but also the combustion space of the fire transfer structure can be increased, and the fire transfer efficiency and success rate are improved.

Another aspect of the utility model relates to a burner comprising said burner.

In a possible embodiment, the burner further comprises an inner ring fire cover, the fire cover is configured to be annular and surrounds the outer ring fire cover, an ignition mechanism is arranged at the inner ring fire cover, the flame formed after the ignition mechanism is ignited by the ignition mechanism and then the flame is transmitted to a fuel gas outlet of the fire cover by the flame transmitting mechanism.

Yet another aspect of the utility model relates to a gas stove comprising a burner as described above.

[ description of the drawings ]

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. Wherein, the liquid crystal display device comprises a liquid crystal display device,

FIG. 1 is a schematic perspective view of a burner of one embodiment of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a cross-sectional view of a burner of one embodiment of the present utility model;

FIG. 4 is a schematic perspective view of a fire cover base of one embodiment of the utility model;

fig. 5 is an enlarged view of fig. 4 at a;

FIG. 6 is a schematic perspective view of one embodiment of the utility model with the fire cover facing upward;

fig. 7 is an enlarged view of fig. 6 at B;

FIG. 8 is a schematic perspective view of a burner of an embodiment of the present utility model.

Reference numerals:

burner 1 burner 10 fire cover 20 fire cover base 30

Air flow inlet 401 and air flow outlet 401 notch 403 of air channel 40

Side 404 bottom 405 gas mixing cavity 101 fire transmission structure 406

First fire transfer holes 407 second fire transfer holes 408 second recess 201

The first inner side wall 203 and the first outer side wall 204 are provided with annular wall 205 fire holes 206

The first recess 301 positions the first side 303 and the second side 304 of the recess 302

The third side 208, the fourth side 209 and the top 211 of the recess 207

Inner ring fire cover 50 with tongue 305 in positioning hole 310 of positioning pin 210

Inner ring concave portion 54 of side wall 53 of cover 52 of inner ring fire hole 51

Inner ring injection system 102 outer ring injection system 103 inner ring gas nozzle 104

Outer ring gas nozzle 105 burner base 60

[ detailed description ] of the utility model

For a further understanding of the objects, construction, features, and functions of the utility model, reference should be made to the following detailed description of the preferred embodiments.

It should be understood that the described embodiments are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terminology used in the embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be noted that, the terms "upper", "lower", "left", "right", and the like in the embodiments of the present utility model are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present utility model. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.

As shown in fig. 1 to 3, the burner 10 includes a fire cover 20 and a fire cover base 30, and the fire cover 20 is covered on the fire cover base 30.

The fire cover 20 may include an inner ring fire cover 50 and/or an outer ring fire cover disposed around the inner ring fire cover 50. The following description will be made using the fire cover 20 as an outer ring fire cover as an example.

As shown in fig. 3 to 7, the fire cover base 30 has a first concave portion 301 formed by concave downward, the fire cover 20 has a second concave portion 201 corresponding to the first concave portion 301 and concave upward, and the first concave portion 301 and the second concave portion 201 define a gas mixing chamber 101 for containing gas.

As shown in fig. 4 and 5, the fire cover 20 has a ring shape, and the fire cover 20 has a first inner side wall 203 and a first outer side wall 204 which are disposed opposite to each other, the first outer side wall 204 being one side wall of the fire cover 20 exposed to the outside. The first inner sidewall 203 and the first outer sidewall 204 cooperate with the enclosure second recess 201. The first outer sidewall 204 of the fire cover 20 is provided with a plurality of fire outlets 206 communicated with the second recess 201, and the fire outlets 206 are circumferentially distributed on the first outer sidewall 204 at intervals. The flame outlet holes 206 are communicated with the gas mixing cavity 101, and in the use state of the flame cover 20, the gas in the gas mixing cavity 101 can flow out through the flame outlet holes 206 to form an outer ring flame.

As shown in fig. 1 to 3, an inner ring fire cover 50 is located at the inner periphery of the fire cover 20. The inner ring fire cover 50 includes a cover body 52 and an inner ring side wall 53 surrounding the cover body 52, wherein an inner ring recess 54 for containing fuel gas is defined between the cover body 52 and the inner ring side wall 53, and the opening of the inner ring recess faces downwards. The inner ring side wall 53 is provided with a plurality of inner ring fire outlet holes 51 for the fuel gas to flow out, and the inner ring fire outlet holes 51 are distributed on the inner ring side wall 53 at intervals along the circumferential direction. The inner ring flame outlet holes 51 are communicated with the inner ring concave parts 54, and the fuel gas in the inner ring concave parts 54 can flow out through the inner ring flame outlet holes 51 to form inner ring flames.

As shown in fig. 3 to 5, the burner 10 further includes an air passage 40 communicating with the gas mixing chamber 101, and a flame transmitting structure 406 communicating the air passage 40 with the gas mixing chamber 101 is provided in the air passage 40. The air passage 40 has an air inlet 401 for inflow of secondary air at the inner edge of the fire cover base 30, and an air outlet 402 at the outer edge of the fire cover base 30 opposite to the air inlet 401. External air enters the air passage 40 from the air inlet 401 to provide secondary air to the flame transfer structure 406 and then flows out from the air outlet 402.

As shown in fig. 2 and 3, a notch 403 communicating with the air inflow port 401 is provided in the fire cover 20, and the notch 403 has a visible opening exposed upward. In other words, the notch 403 is visible, not hidden, in a top view of the outer ring fire cover 20.

The notch 403 is located at the air inlet 401, and the notch 403 communicates with the air inlet 401.

By the provision of the notches 403, on the one hand the size of the inlet of the air channel 40 is increased. External air can enter the air channel 40 through the air inlet 401 and the notch 403, supplement secondary air for the fire transfer structure 406, and then flow out through the air outlet 402. This not only can increase the size of the inlet opening of the secondary air inflow air passage 40 to supplement sufficient secondary air to the flame transfer structure 406, but also can increase the combustion space of the flame transfer structure 406, which can solve the problem of poor flame transfer due to insufficient secondary air supplement or limited flame transfer space. Thereby improving the fire power, the fire speed and the fire performance.

As shown in fig. 4 to 7, a positioning pin 210 extending in a direction beyond the fire cover 20 is provided on the fire cover 20, the fire cover 20 base has a positioning hole 310 corresponding to the positioning pin 210, and the outer ring fire cover 20 is fixed to the fire cover 20 base by the cooperation of the positioning pin 210 and the positioning hole 310. When the notch 403 is located above the positioning groove 207302, the positioning pin 210 is inserted into the positioning hole 310.

On the other hand, the notch 403 can also play a role in positioning and indicating the installation of the fire cover 20 and the fire cover 30, when the fire cover is assembled, the notch 403 is aligned to the positioning groove 302, so that the fire cover 20 can be easily and accurately placed on the fire cover 20 base, the positioning pin 210 is accurately inserted into the positioning hole 310, the technical problem that the positioning pin 210 is not easy to insert into the positioning hole 310 in the installation process is solved, the accuracy and efficiency of the installation of the fire cover 20 and the fire cover base 30 are improved, and the possibility of fire leakage caused by the fact that the fire cover 20 and the fire cover base 30 are not assembled in place can be reduced.

As shown, the notch 403 is configured such that at least a portion of the air channel 40 is exposed to the notch 403. In other words, at least a portion of the air passages 40 are visible, rather than being entirely hidden, in a top view of the fire cover 20. The projection of the notch 403 in the horizontal plane at least partially overlaps with the projection of the air channel 40 in the horizontal plane.

The notch 403 penetrates the first inner sidewall 203, and the first inner sidewall 203 lacks a portion corresponding to the air inlet 401 to form an opening, so that the portion of the first sidewall 53 corresponding to the air inlet 401 does not block air from passing through the air inlet channel 40.

The outer ring fire cover 20 further comprises an annular wall 205 located between the first inner side wall 203 and the first outer side wall 204, the notch 403 extending from the first inner side wall 203 along the annular wall 205 towards the first outer side wall 204.

The size of the notch 403 is not more than one half of the size of the annular wall 205 in the radial direction of the first inner side wall 203, i.e. in the direction from the first inner side wall 203 to the first outer side wall 204.

The inner diameter of the notch 403 is 3 mm or more and 8 mm or less. In one embodiment, the inner diameter of the notch 403 is 3 millimeters. This allows the fire transfer structure 406 to obtain sufficient secondary air without affecting the strength of the fire cover 20 itself, and the size of the notch 403 facilitates quick identification during installation, improving installation efficiency.

The notch 403 may have a different shape. In one embodiment, the notch 403 is an arcuate structure having a radius of curvature. In another embodiment, the notch 403 is a semi-circular structure. The notch 403 may also have other shapes such as triangular, rectangular, square, trapezoidal, polygonal, or irregular shapes, etc. This facilitates the formation of notches 403 in fire cover 20, is convenient to process and easy to apply, and can also be formed directly on existing fire cover 20 products.

A pair of oppositely disposed sides 404 and a bottom surface 405 between a stack of oppositely disposed sides 404 are disposed within the air passage 40, and the flame transfer structure 406 is disposed on the sides 404. The fire delivery structure 406 is disposed on both sides of the air passage 40, which allows for delivery of fire from different directions, increasing the rate of delivery of fire.

In one embodiment, the firearms 406 are firearms grooves on the side 404. In this embodiment, the fire transfer structure 406 is a fire transfer hole penetrating through the side 404, where the fire transfer hole communicates the gas mixing cavity 101 with the air channel 40, and the gas in the gas mixing cavity 101 can flow out through the fire transfer hole to form a flame.

As shown, each side 404 is provided with a first fire transfer hole 407 adjacent to the air inlet 401 and a second fire transfer hole 408 adjacent to the air outlet, and the fire transfer structure 406 includes the first fire transfer hole 407 and the second fire transfer hole 408. The first fire transfer holes 407 are ignited and then the second fire transfer holes 408 are ignited, and then the fire holes 206 are sequentially ignited to form an outer ring flame.

The first fire transfer holes 407 are exposed at the notch 403. In the using process of the burner 10, the first fire transfer holes 407 can be fully contacted with the external air, the first fire transfer holes 407 can be supplemented with enough secondary air, the first fire transfer holes 407 have enough combustion space, flames flowing out of the first fire transfer holes 407 can be stably combusted, the fire transfer power is improved, and the burner has good fire transfer performance.

As shown in the drawing, the fire cover base 30 has a positioning groove 302 formed by recessing downwards, the positioning groove 302 has a pair of first side 303 and second side 304 which are oppositely arranged, a bottom surface 405 is located between the first side 303 and the second side 304, and a plurality of fire transfer holes are sequentially formed on the upward surfaces of the first side 303 and the second side 304. The bottom surface 405 extends obliquely downward in a direction from the air outlet 402 to the air inlet 401 and beyond the inner edge of the base of the fire cover 20 and forms a tongue 305, and the notch 403 is located above the tongue 305.

Side 404 is at least partially formed by first side 303 and second side 304.

As shown, the fire transfer structure 406 includes a first fire transfer hole 407 disposed near the air inlet 401, where the first fire transfer hole 407 is symmetrically disposed on the first side 303 and the second side 304, and the first fire transfer hole 407 is exposed at the notch 403, which not only can provide enough secondary air for the first fire transfer hole 407, but also can increase enough combustion space for the flame of the first fire transfer hole 407, so as to ensure that the inner ring fire can smoothly transfer to the first fire transfer hole 407, and then transfer to the second fire transfer hole 408 to finally ignite the flames of the fire holes 206 in turn, thereby ensuring the success rate of fire transfer.

The fire transfer structure 406 further includes a second fire transfer hole 408 disposed at the air outlet, the second fire transfer hole 408 being symmetrically disposed on the first side 303 and the second side 304, the second fire transfer hole 408 being closer to the fire exit hole 206 than the first fire transfer hole 407. Sufficient secondary air is also available near the air flow outlet 402 for the second flame transfer holes 408, and when the first flame transfer holes 407 are ignited, the second flame transfer holes 408 can be smoothly ignited, which in turn transfers the flame to the outer ring flame holes.

In the using process of the burner 10, the inner ring fire cover 50 is provided with an ignition mechanism, the ignition mechanism ignites the fuel gas flowing out of the inner ring fire outlet 51 to form flame, then ignites the flame of the fire transmission structure 406, specifically, the inner ring flame ignites the fuel gas flowing out of the first fire transmission hole 407 to form flame, then the flame is transmitted to the second fire transmission hole 408, the fuel gas flowing out of the second fire transmission hole 408 is ignited to form flame, and finally the fuel gas flowing out of the fire outlet 206 is ignited in turn to form outer ring flame.

The fire cover 20 has a recess 207 corresponding to the detent recess 302, the detent recess 302 cooperating with the recess 207 to define the air passage 40. The recess 207 has third and fourth oppositely disposed sides 208 and 209 and a top surface 211 between the third and fourth sides 208 and 209. Wherein the first side 303 corresponds to the third side 208, the second side 304 corresponds to the fourth side 209, the bottom surface 405 corresponds to the top surface 211, and the air channel 40 is defined by the first side 303, the second side 304, the third side 208, the fourth side 209, the top surface 211, and the bottom surface 405.

Side 404 is at least partially formed by third side 208 and fourth side 209.

As shown, the notch 403 is located at the inner edge of the top surface 211, i.e., the notch 403 is located on the side of the top surface 211 that is adjacent to the inner ring fire cover 50. Notch 403 extends outwardly from the inner edge of top surface 211.

This presents a certain difficulty in mounting the locating pin 210 into the locating hole 310 when the fire cover 20 is mounted to the fire cover base 30, since the locating pin 210 faces downward. This problem is solved by the provision of the notch 403, since the notch 403 is easily and quickly identified.

When the notch 403 is located above the positioning groove 302, the positioning pin 210 is inserted into the positioning hole 310. The cooperation of breach 403 and constant head tank 302 can play location and instruction effect to the installation of fire lid 20 and fire lid base 30, during the assembly, aim at constant head tank 302 with breach 403, just can be very easy with fire lid 20 accurately place at fire lid base 30, locating pin 210 inserts locating hole 310 accurately, the technical problem that locating pin 210 is difficult to insert locating hole 310 in the installation is solved, improve the accuracy and the efficiency of fire lid 20 and fire lid base 30 installation, and can reduce the possibility that leaks fire because of fire lid 20 and fire lid base 30 are assembled not in place.

The utility model also provides a burner 1, which comprises the burner 10 and a burner 1 base, wherein the burner 10 is detachably arranged on the burner 1 base.

The burner 1 further comprises an inner ring injection system 102 and an outer ring injection system 103. The inner ring injection system 102 comprises an inner ring gas nozzle 103, an inner ring injection pipe 106 connected with the inner ring gas nozzle 103 and an inner ring pressure stabilizing cavity connected with the inner ring injection pipe 106. The outer ring injection system 103 comprises an outer ring gas nozzle 104, an outer ring injection pipe 107 connected with the outer ring gas nozzle 104 and an outer ring pressure stabilizing cavity connected with the outer ring injection pipe 107. In this embodiment, the outer ring plenum chamber is in communication with the gas mixing chamber 101.

The fuel gas enters the inner ring pressure stabilizing cavity after passing through the inner ring injection pipe 106, and the air flow entering the inner ring pressure stabilizing cavity finally flows to the inner ring fire outlet 51 of the inner ring fire cover 50 to form inner ring flame.

After entering the outer ring pressure stabilizing cavity after passing through the outer ring injection pipe 103, the fuel gas flows into the fuel gas mixing cavity 101, then flows to the fire transmission structure 406 of the fire cover 20 and the fire outlet holes 206 to form flames.

The present utility model also provides a gas cooker including the burner 1 for a gas cooker of any one of the embodiments described above.

The various embodiments described in connection with fig. 1-8 may be combined with each other in any given manner to achieve the advantages of the present utility model. The present utility model is not limited to the embodiments shown, and means other than those shown may be used in general as long as the same effects can be achieved.

Claims (14)

1. A burner (10) of a burner (1) for a gas range, comprising:

the fire cover (20) and the fire cover base (30), wherein the fire cover (20) is covered on the fire cover base (30);

the fire cover base (30) is provided with a first concave part (301) which is concave downwards, the fire cover (20) is provided with a second concave part (201) which is concave upwards and corresponds to the first concave part (301), and the first concave part (301) and the second concave part (201) define a gas mixing cavity (101) for containing gas;

the method is characterized in that:

the gas mixing device further comprises an air channel (40) communicated with the gas mixing cavity (101), wherein a fire transmission structure (406) communicated with the air channel (40) and the gas mixing cavity (101) is arranged in the air channel (40);

the air channel (40) is provided with an air inlet (401) for inflow of secondary air at the inner edge of the flame cover (20) base and an air outlet (402) opposite to the air inlet (401) at the outer edge of the flame cover base (30) for outflow of secondary air;

the fire cover (20) is provided with a notch (403) communicated with the air inflow opening (401), the notch (403) is provided with a visible opening which is exposed upwards, and external air enters the air channel (40) through the air inflow opening (401) and the notch (403) to supplement secondary air for the fire transfer structure (406).

2. The burner (10) of a burner (1) for gas cookers according to claim 1, characterized in that said notch (403) is configured such that at least part of said air channel (40) is exposed to said notch (403); and/or

The projection of the notch (403) on the horizontal plane at least partially overlaps with the projection of the air channel (40) on the horizontal plane.

3. Burner (10) of a burner (1) for gas cookers according to claim 1, characterized in that the fire cover (20) has a first inner side wall (203) and a first outer side wall (204) arranged opposite each other, and an annular wall between the first inner side wall (203) and the first outer side wall (204), the notch (403) extending from the first inner side wall (203) along the annular wall in the direction of the first outer side wall (204).

4. A burner (10) of a burner (1) for gas cookers according to claim 3, characterized in that said notch (403) penetrates said first inner side wall (203).

5. The burner (10) of a burner (1) for a gas range according to claim 1, wherein said fire transfer structure (406) comprises a first fire transfer hole (407) adjacent to said notch (403) and a second fire transfer hole (408) adjacent to said first fire transfer hole (407), said first fire transfer hole (407) being ignited and then said second fire transfer hole (408) being ignited, said first fire transfer hole (407) being exposed at said notch (403).

6. Burner (10) of a burner (1) for gas ranges according to claim 1, characterized in that said notch (403) has an internal diameter of 3 mm or more and 8 mm or less.

7. Burner (10) of a burner (1) for gas cookers according to claim 6, characterized in that the internal diameter of the notch (403) is 3 mm.

8. Burner (10) of a burner (1) for gas cookers according to claim 1, characterized in that the notch (403) is of an arc-shaped structure with a bending radius and/or the notch (403) is of a semi-circular structure.

9. Burner (10) of a burner (1) for gas ranges according to claim 1, characterized in that said air channel (40) is internally provided with a pair of oppositely disposed sides (404), said flame transfer structure (406) being disposed on said oppositely disposed sides (404).

10. The burner (10) of a burner (1) for gas cookers according to claim 8, characterized in that the flame transfer structure (406) comprises flame transfer slots or flame transfer holes.

11. Burner (10) of a burner (1) for gas cookers according to claim 1, characterized in that the burner cover (20) base has a recess (207) formed by a downward depression, the recess (207) having a bottom surface (405), the bottom surface (405) extending obliquely downward in the direction from the air outlet (402) to the air inlet (401) and beyond the inner edge of the burner cover (20) base and forming a tongue (305), the notch (403) being located above the tongue (305).

12. Burner (1) according to any one of the preceding claims, comprising a burner (10).

13. A burner (1) according to claim 12, wherein the burner (1) further comprises an inner annular flame cover (50), the flame cover (20) being configured to be annular and surrounding the inner annular flame cover (50), an ignition mechanism being provided at the inner annular flame cover (50), the flame formed after ignition of the ignition mechanism re-igniting the flame transfer structure (406), the flame transfer structure (406) in turn transferring the flame to a gas outlet of the flame cover (20).

14. A gas stove, characterized by comprising a burner (1) according to claim 12 or 13.