CN219656071U - Burner and kitchen range - Google Patents

Abstract

Embodiments of the present utility model provide a burner and a cooktop. The burner comprises a main body, an outer ring fire cover, an inner ring fire cover and an ignition device, wherein the ignition device is connected to the main body, the inner ring fire cover and the outer ring fire cover are arranged on the main body, the outer ring fire cover is arranged outside the inner ring fire cover in a surrounding mode, a fire transmission groove with an opening facing the main body is formed in the outer ring fire cover, the fire transmission groove is provided with a groove top wall opposite to the opening, and the groove top wall is shielded above the ignition device. The ignition device is not arranged under the hat brim of the inner ring fire cover, so that the ignition device is not influenced by a larger hat brim. And, since the flame transfer groove is only used for transferring flame, the flame therein is much smaller than the flame at the annular wall of the inner annular flame cover. In this way, the flame in the flame transfer groove is not greatly influenced by the groove top wall, so that little or no smoke is caused, and the flame temperature is high. Thus, the combustion heat efficiency of the burner is high.

Description

Burner and kitchen range

Technical Field

The utility model relates to the technical field of household kitchen ware, in particular to a combustor and a kitchen range with the same.

Background

With the increasing demands of people on life quality, cookers have become essential living goods basically.

The burner is a core component of the kitchen range. The ignition device of the burner is typically disposed outside the annular wall of the inner annular flame cover so as to be aligned with the gas outlet holes in the annular wall of the inner annular flame cover. The air outlet holes can spray mixed gas formed by the fuel gas and the air. The ignition device may form an electric spark so that the mixed gas may be ignited. The annular wall of the inner ring fire cover is also provided with a hat brim which is covered above the ignition device and the air outlet. The cap peak can prevent the dirt such as soup and/or dirt from adhering to the ignition device and the air outlet hole, thereby causing poor ignition and unsmooth air outlet.

However, since the annular wall of the inner ring fire cover is provided with a plurality of air outlet holes, the cap peak needs to be designed larger in order to prevent the air outlet holes from being blocked. Thus, in the ignition process of the ignition device, flames are easy to burn to the hat brim, smoke is generated, the temperature of the flames is low, and then the combustion heat efficiency is low.

Disclosure of Invention

In order to at least partially solve the problems of the prior art, according to one aspect of the present utility model, a burner is provided. The burner comprises a main body, an outer ring fire cover, an inner ring fire cover and an ignition device, wherein the ignition device is connected to the main body, the inner ring fire cover and the outer ring fire cover are arranged on the main body, the outer ring fire cover is arranged outside the inner ring fire cover in a surrounding mode, a fire transmission groove with an opening facing the main body is formed in the outer ring fire cover, the fire transmission groove is provided with a groove top wall opposite to the opening, and the groove top wall is shielded above the ignition device.

According to the burner provided by the embodiment of the utility model, soup, dirt and the like falling down from a cooker and the like above the burner are blocked by the top wall of the tank, so that the dirt can be prevented from adhering to the ignition device, and the ignition of the ignition device can be prevented from being influenced. On the basis, the ignition device is not arranged under the hat brim of the inner ring fire cover, so that the ignition device is not influenced by the larger hat brim. And, since the flame transfer groove is only used for transferring flame, the flame therein is much smaller than the flame at the annular wall of the inner annular flame cover. In this way, the flame in the flame transfer groove is not greatly influenced by the groove top wall, so that little or no smoke is caused, and the flame temperature is high. Thus, the combustion heat efficiency of the burner is high.

The outer annular fire cover comprises a top wall, an outer annular wall and an inner annular wall connected to the top wall, a fire transfer groove penetrates between the outer annular wall and the inner annular wall, the groove top wall is arranged on the top wall and protrudes towards the inner annular fire cover to the inner annular wall, and the ignition device is at least partially arranged between the inner annular wall and the inner annular fire cover. So set up, ignition is comparatively close to inner ring fire lid to can be convenient for flame transfer to inner ring fire lid, the fire effect of passing of combustor is better.

Illustratively, in the horizontal direction, there is a minimum distance L between the top wall of the trough and the centre of the inner annular fire cover, the inner annular wall has an inner diameter R, and the difference between the inner diameter R and the minimum distance L is between 2mm-5 mm. The difference may be, for example, 2mm, 3.5mm or 5mm. Too large a difference may result in the ignition device being too close to the inner ring fire cover and thus may be affected by the bill of the inner ring fire cover. Too small a difference may cause the ignition device to be too far from the inner ring fire cover, thereby causing a decrease in the fire transmission effect. Therefore, the difference is reasonable in this range.

Illustratively, a discharge boss is provided on the trough ceiling that projects toward the opening and is located above the ignition device. By arranging the discharge boss, the ignition device can discharge directionally, so that the ignition success rate can be improved.

Illustratively, the minimum distance D of the discharge boss from the ignition device is between 3mm and 6mm. The minimum distance D may be, for example, 3mm, 4.5mm or 6mm. Too large a minimum distance D may result in too small an electric spark, which is detrimental to ignition of the mixture. Too small a minimum distance D may result in too little mixed gas between the discharge boss and the ignition device, thereby resulting in too low a concentration of mixed gas, which is disadvantageous for igniting the mixed gas. Therefore, the minimum distance D is reasonable in this range.

The outer annular fire cover comprises a top wall, an outer annular wall and an inner annular wall, wherein the outer annular wall and the inner annular wall are connected to the top wall, the fire transfer groove penetrates through the space between the outer annular wall and the inner annular wall, the groove top wall is arranged on the top wall, the fire transfer groove further comprises a pair of groove side walls connected to the groove top wall, a first air inlet groove is formed by surrounding the top wall, the outer annular wall, the inner annular wall and the pair of groove side walls, and a through hole communicated between the first air inlet groove and the fire transfer groove is formed in the outer annular fire cover. Therefore, the outer ring fire cover has simple structure and low manufacturing cost. The through holes can be hidden in the fire transmission groove, so that blockage caused by dirt adhesion can be effectively avoided. Therefore, the ignition success rate of the burner is higher, the flame can be normally transmitted, and the experience of a user is better.

The through-hole may comprise a first through-hole, a first inlet of the first through-hole being provided on the inner annular wall, and a first outlet of the first through-hole being provided on the groove side wall and directed towards the ignition device. So set up, the mixed gas can pass through first air inlet tank and first through-hole in proper order to can spout towards ignition. In this way, the concentration of the mixed gas at the ignition device is high, so that ignition can be facilitated.

Illustratively, the through holes further comprise a second through hole, a third through hole and a fourth through hole disposed on the side wall of the tank, the first outlet, the second outlet of the second through hole, the third outlet of the third through hole and the fourth outlet of the fourth through hole gradually approach the outer annular wall, and the fourth outlet faces the outer annular wall. Thus, after the ignition device ignites the mixed gas, the flame can ignite the mixed gas sprayed from the second outlet of the second through hole, the mixed gas sprayed from the third outlet of the third through hole and the mixed gas sprayed from the fourth outlet of the fourth through hole in sequence, so that the flame can be transmitted to the outer annular wall. Thus, the fire transmission effect of the burner is better.

Illustratively, the main body comprises a furnace head seat and a distributor arranged on the furnace head seat, the ignition device is arranged on the furnace head seat, the inner ring fire cover and the outer ring fire cover are both arranged on the distributor, the distributor comprises a bottom wall, a first annular wall, a second annular wall and a boss, the first annular wall and the second annular wall are both connected to the bottom wall, the first annular wall is enclosed outside the second annular wall, the boss is connected between the first annular wall and the second annular wall, the bottom wall, the first annular wall, the second annular wall and the boss are enclosed to form a second air inlet groove, and the first air inlet groove and the second air inlet groove are communicated to form an outer ring air inlet channel, and the boss is plugged with an opening. The burner has simple structure and low manufacturing cost.

Illustratively, the boss includes a first boss and second bosses connected to both sides of the first boss, the first boss being inserted into and blocking the opening, and a pair of groove side walls being abutted to the second bosses in one-to-one correspondence. So set up, the location effect of outer ring fire lid is better. And moreover, the side walls of the pair of grooves are in one-to-one correspondence and are abutted to the second boss, so that a good sealing effect can be achieved, and a good flame transmission effect of the combustor is ensured.

According to another aspect of the utility model, a cooktop is also provided. The cooktop includes any of the burners described above.

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

Advantages and features of the utility model are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings are included to provide an understanding of the utility model and are incorporated in and constitute a part of this specification. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model. In the drawings of which there are shown,

FIG. 1 is a perspective view of a burner according to an exemplary embodiment of the present utility model;

FIG. 2 is an exploded view of the burner shown in FIG. 1;

FIG. 3 is a cross-sectional view of the combustor shown in FIG. 1;

FIG. 4 is a perspective view of the distributor shown in FIG. 1;

FIG. 5 is a bottom view of the outer ring fire cover shown in FIG. 1;

FIG. 6 is a cross-sectional view of the outer ring fire cover shown in FIG. 5;

FIG. 7 is an enlarged view of a portion of the outer ring fire cover shown in FIG. 6; and

fig. 8 is a schematic view of the use of the burner shown in fig. 1.

Wherein the above figures include the following reference numerals:

100. a main body; 200. an outer ring fire cover; 201. a top wall; 202. an outer annular wall; 203. an inner annular wall; 210. a fire transfer groove; 211. a trough top wall; 212. a groove sidewall; 220. a first air intake groove; 230. a first air outlet hole; 240. a discharge boss; 250. a through hole; 260. a first through hole; 270. a second through hole; 280. a third through hole; 290. a fourth through hole; 300. an inner ring fire cover; 301. a top wall; 302. an annular wall; 310. a third air inlet groove; 320. a second air outlet hole; 410. an ignition device; 420. a thermocouple; 500. a furnace head seat; 510. a nozzle; 600. a fire divider; 601. a bottom wall; 602. a first annular wall; 603. a second annular wall; 604. a boss; 605. a third annular wall; 606. a first boss; 607. a second boss; 610. a second air inlet groove; 620. and a fourth air inlet groove.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the utility model. However, it will be understood by those skilled in the art that the following description illustrates preferred embodiments of the utility model by way of example only and that the utility model may be practiced without one or more of these details. Furthermore, some technical features that are known in the art have not been described in detail in order to avoid obscuring the utility model.

According to one aspect of the present utility model, a burner is provided. The burner may be applied to any suitable device including, but not limited to, a kitchen range. Thus, according to another aspect of the present utility model, there is also provided a cooktop. The cooktop includes, but is not limited to, a liquefied gas cooker, a gas cooker, or a natural gas cooker. The burner and the cooker according to the embodiments of the present utility model will be described in detail with reference to the accompanying drawings.

In some embodiments, as shown in fig. 1-8, a burner may include a main body 100, an outer ring fire cover 200, an inner ring fire cover 300, and an ignition device 410.

The ignition device 410 may be connected to the main body 100. The ignition device 410 may employ various types of ignition devices known in the art or that may occur in the future, including but not limited to electronic pulse ignition devices or piezo ceramic ignition devices. The ignition device 410 may be discharged so that an electric spark may be formed, and thus a mixed gas of fuel gas and air may be ignited. Illustratively, the combustor may also include a thermocouple 420. The thermocouple 420 may be connected to the body 100. Thermocouple 420 may be used for flameout protection.

Both the inner ring fire cover 300 and the outer ring fire cover 200 may be provided on the main body 100. The outer ring fire cover 200 may be disposed around the inner ring fire cover 300. The outer ring fire cover 200 and the inner ring fire cover 300 may be spaced apart.

The outer ring fire cover 200 may be provided with a fire transfer groove 210. It is understood that the flame propagation groove 210 may penetrate between the outer circumferential side and the inner circumferential side of the outer ring flame cover 200. Specifically, the outer ring fire cover 200 may include a top wall 201, an outer ring wall 202, and an inner ring wall 203. The outer and inner annular walls 202 and 203, respectively, may be connected to the top wall 201. The outer annular wall 202 may be disposed around the inner annular wall 203. The outer annular wall 202 and the inner annular wall 203 may be spaced apart. The outer annular wall 202 may have a first outlet aperture 230 disposed therein. The firearms 210 can extend between the outer annular wall 202 and the inner annular wall 203. The firebox 210 can have oppositely disposed box top walls 211 and openings. The opening may be oriented toward the body 100. The trough ceiling 211 may be shielded above the ignition device 410. That is, the projection of the slot top wall 211 onto the horizontal plane may cover the projection of the ignition device 410 onto the horizontal plane. A trough top wall 211 may be provided on top wall 201. The ignition device 410 may be disposed at any suitable location below the slot top wall 211, such as near one side of the outer annular wall 202, or near one side of the inner annular wall 203, or between the outer annular wall 202 and the inner annular wall 203, etc.

The inner ring fire cover 300 may include a top wall 301 and an annular wall 302. An annular wall 302 may be connected to the top wall 301. The annular wall 302 may have a second outlet aperture 320 disposed therein.

In practical applications, the mixed gas may enter the flame transfer tank 210. When the ignition device 410 is ignited, the spark may ignite the mixed gas in the flame propagation groove 210, so that a flame may be formed. Specifically, as shown in fig. 3 and 8, arrows schematically show the direction of flame transfer, and vanes schematically show the flame. A portion of the flame may pass through the pass through slot 210 toward the annular wall 302 of the inner ring fire cover 300. In this way, the mixed gas sprayed through the second gas outlet holes 320 may be ignited, so that an inner ring flame may be formed on the inner ring flame cover 300. Another portion of the flame may be transferred through the transfer slots 210 to the outer annular wall 202 of the outer annular flame cover 200. In this way, the mixed gas sprayed through the first gas outlet holes 230 may be ignited, so that an outer ring flame may be formed on the outer ring flame cover 200.

In summary, in the burner provided by the embodiment of the utility model, soup and/or dirt falling down from a pan or the like above the burner are blocked by the groove top wall 211, so that the dirt is prevented from adhering to the ignition device 410, and the ignition of the ignition device 410 is prevented from being influenced. On this basis, the ignition device 410 is not disposed under the visor of the inner ring fire cover 300, and thus is not affected by a larger visor. And, since the flame propagation groove 210 is used only for flame propagation, the flame therein is much smaller than the flame at the annular wall 302 of the inner annular flame cover 300. In this way, the flame within the flame propagation slot 210 is not affected too much by the slot top wall 211, resulting in little to no smoke and a higher flame temperature. Thus, the combustion heat efficiency of the burner is high.

Illustratively, the slot top wall 211 may protrude from the inner annular wall 203 toward the inner annular fire cover 300. The ignition device 410 may be at least partially disposed between the inner annular wall 203 and the inner annular fire cover 300. That is, the ignition device 410 may be disposed entirely between the inner annular wall 203 and the inner annular flame cover 300; or the ignition device 410 may be partially disposed between the inner annular wall 203 and the inner annular flame cover 300, and another portion may be disposed between the outer annular wall 202 and the inner annular wall 203. So set up, ignition device 410 is comparatively close to inner ring fire lid 300 to can be convenient for flame transfer to inner ring fire lid 300, the fire effect of passing of combustor is better.

Illustratively, in the horizontal direction, there may be a minimum distance L between the slot top wall 211 and the center of the inner ring fire cover 300. The inner annular wall 203 may have an inner diameter R. The inner diameter R may be greater than the minimum distance L. In particular, the difference between the inner diameter R and the minimum distance L may be between 2mm and 5mm, for example may be 2mm, 3.5mm or 5mm. Too large a difference may result in the ignition device 410 being too close to the inner ring fire cover 300 and thus may be affected by the bill of the inner ring fire cover 300. Too small a difference may cause the ignition device 410 to move too far from the inner ring fire cover 300, thereby causing a decrease in the fire transmitting effect. Therefore, the difference is reasonable in this range.

Illustratively, the slot top wall 211 may be provided with a discharge boss 240. The discharge boss 240 may protrude from the groove top wall 211 toward the opening of the flame transfer groove 210. The firearms 210 can be positioned above the ignition device 410. The discharge boss 240 may be generally made of metal. By providing the discharge boss 240, the ignition device 410 can be directionally discharged, so that the success rate of ignition can be improved.

Illustratively, the minimum distance D of the discharge boss 240 from the ignition device 410 may be between 3mm-6mm, such as 3mm, 4.5mm, or 6mm. Too large a minimum distance D may result in too small an electric spark, which is detrimental to ignition of the mixture. Too small a minimum distance D may result in too little mixed gas between the discharge boss 240 and the ignition device 410, thereby resulting in too low a concentration of mixed gas, which is detrimental to ignition of the mixed gas. Therefore, the minimum distance D is reasonable in this range.

Illustratively, the firearms 210 may also include a pair of slot sidewalls 212. A pair of slot side walls 212 may be connected to both sides of the slot top wall 211, respectively. In this way, the tank top wall 211 and the pair of tank side walls 212 may surround to form the fire transfer tank 210. An opening for the firearms 210 may be formed between a pair of slot side walls 212. A pair of slot side walls 212 may be connected between the outer and inner annular walls 202 and 203, respectively. The top wall 201, the outer annular wall 202, the inner annular wall 203, and the pair of slot side walls 212 may surround to form a first air intake slot 220. As such, the first air intake slot 220 may be generally C-shaped. The outer ring fire cover 200 may be provided with a through hole 250. The through hole 250 may communicate between the first air intake groove 220 and the flame propagation groove 210. So configured, the mixed gas may sequentially pass through the first air inlet groove 220, the through hole 250, and the flame propagation groove 210, and thus may be ignited by the ignition device 410. Thus, the outer ring fire cover 200 has simple structure and low manufacturing cost. The through holes 250 can be hidden in the fire transfer groove 210, so that blockage caused by dirt adhesion can be effectively avoided. Therefore, the ignition success rate of the burner is higher, the flame can be normally transmitted, and the experience of a user is better.

Illustratively, the via 250 may include a first via 260. The first inlet of the first through hole 260 may be provided on the inner circumferential wall 203. As such, the first inlet of the first through hole 260 may be communicated to the first air intake groove 220. The first outlet of the first through hole 260 may be provided on the groove sidewall 212. As such, the first outlet of the first through hole 260 may communicate to the flame propagation groove 210. The first outlet of the first through hole 260 may be directed toward the ignition device 410. The number of the first through holes 260 may be arbitrary. In the embodiment shown in the drawings, the first through holes 260 may be two. The two first through holes 260 may be symmetrically disposed along the fire transfer groove 210. So configured, the mixed gas may sequentially pass through the first air inlet groove 220 and the first through hole 260, and thus may be sprayed toward the ignition device 410. In this way, the concentration of the mixed gas at the ignition device 410 is high, so that ignition can be facilitated.

Illustratively, the through-holes may further include second through-holes 270, third through-holes 280, and fourth through-holes 290. The second through hole 270, the third through hole 280, and the fourth through hole 290 may be provided on the groove sidewall 212. The second inlet of the second through-hole 270, the third inlet of the third through-hole 280, and the fourth inlet of the fourth through-hole 290 may be respectively communicated to the first air intake groove 220. The second outlet of the second through hole 270, the third outlet of the third through hole 280, and the fourth outlet of the fourth through hole 290 may be respectively communicated to the flame propagation groove 210. Thus, the mixed gas may be ejected through the second outlet of the second through hole 270, the third outlet of the third through hole 280, and the fourth outlet of the fourth through hole 290, respectively. The first outlet of the first through hole 260, the second outlet of the second through hole 270, the third outlet of the third through hole 280, and the fourth outlet of the fourth through hole 290 may be gradually closer to the outer circumferential wall 202. And, the fourth outlet of the fourth through hole 290 may be directed toward the outer annular wall 202. In this way, after the ignition device 410 ignites the mixed gas, the flame can ignite the mixed gas ejected from the second outlet of the second through hole 270, the mixed gas ejected from the third outlet of the third through hole 280, and the mixed gas ejected from the fourth outlet of the fourth through hole 290 in this order, so that the flame can be transferred to the outer circumferential wall 202. Thus, the fire transmission effect of the burner is better.

Illustratively, the second through-hole 270 and the third through-hole 280 may be disposed on different slot sidewalls 212. The number of fourth through holes 290 may be arbitrary. In the embodiment shown in the figures, the fourth through holes 290 may be two. Two fourth through holes 290 may be symmetrically disposed along the fire transfer slot 210.

Illustratively, the top wall 301 and the annular wall 302 of the inner annular fire cover 300 may circumscribe to form a third air intake slot 310. So configured, the mixed gas may sequentially pass through the third inlet groove 310 and the second outlet hole 320, and thus may be ignited.

The structure of the main body 100 may be arbitrary. In some embodiments, the body 100 may include a burner block 500 and a distributor 600. The distributor 600 may be provided on the burner block 500. Both the ignition device 410 and the thermocouple 420 may be provided on the burner block 500. Both the inner ring fire cover 200 and the outer ring fire cover 300 may be provided on the distributor 600.

Specifically, the burner block 500 may be provided with a nozzle 510. The mixed gas may be ejected through the nozzle 510. The distributor 600 may include a bottom wall 601, a first annular wall 602, a second annular wall 603, and a boss 604. Both the first annular wall 602 and the second annular wall 603 may be connected to the bottom wall 601. The first annular wall 602 may be enclosed outside the second annular wall 603. The first annular wall 602 and the second annular wall 603 may be spaced apart. The boss 604 may be connected between the first annular wall 602 and the second annular wall 603. The bottom wall 601, the first annular wall 602, the second annular wall 603, and the boss 604 may surround to form a second air intake groove 610. The first and second intake grooves 220 and 610 may communicate to form an outer ring intake passage. The boss 604 may block the opening of the firechute 210. In this manner, the slot top wall 211, the pair of slot side walls 212, and the boss 604 may surround to form a fire transfer channel. The mixed gas sprayed from the nozzle 510 can pass through the outer ring air inlet channel, so that the mixed gas can be sprayed through the fire transmission channel and can be ignited by the ignition device 410. The burner has simple structure and low manufacturing cost.

The distributor 600 may also include a third annular wall 605. The third annular wall 605 may be connected to the bottom wall 601. The second annular wall 603 may be enclosed outside the third annular wall 605. The second annular wall 603 and the third annular wall 605 may be spaced apart. The bottom wall 601 and the third annular wall 605 may surround to form a fourth air intake channel 620. The third air intake slot 310 and the fourth air intake slot 620 may communicate to form an inner ring air intake passage. The mixed gas sprayed from the nozzle 510 may pass through the inner ring air inlet channel, so as to be sprayed out through the second air outlet hole 320, and thus may be ignited by the ignition device 410.

Illustratively, the boss 604 may include a first boss 606 and two second bosses 607. Two second bosses 607 may be connected to both sides of the first boss 606, respectively. The first boss 606 may protrude from the second boss 607. The first boss 606 may be inserted into and close off the opening of the firechute 210. A pair of slot side walls 212 may abut the second boss 607 in a one-to-one correspondence. So set up, the location effect of outer ring fire lid 200 is better. And, through the butt to the second boss 607 of a pair of groove lateral wall 212 one-to-one, can play better sealed effect to ensure that the fire effect of passing of combustor is better.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front", "rear", "upper", "lower", "left", "right", "transverse", "vertical", "horizontal", and "top", "bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely for convenience of describing the present utility model and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, without limiting the scope of protection of the present utility model; the orientation terms "inner" and "outer" refer to the inner and outer relative to the outline of the components themselves.

For ease of description, regional relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein to describe regional positional relationships of one or more components or features to other components or features illustrated in the figures. It will be understood that the relative terms of regions include not only the orientation of the components illustrated in the figures, but also different orientations in use or operation. For example, if the element in the figures is turned over entirely, elements "over" or "on" other elements or features would then be included in cases where the element is "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". Moreover, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and all such cases are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, components, assemblies, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The present utility model has been illustrated by the above-described embodiments, but it should be understood that the above-described embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. In addition, it will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (11)

1. The utility model provides a combustor, includes main part, outer ring fire lid, inner ring fire lid and ignition, ignition connect in the main part, inner ring fire lid with outer ring fire lid all sets up in the main part, just outer ring fire lid encloses to establish outer the inner ring fire lid, its characterized in that, be formed with the opening orientation on the outer ring fire lid the fire groove that passes that the main part set up, fire groove have with the groove roof wall that the opening is relative, the groove roof wall shelters from ignition's top.

2. The burner of claim 1 wherein the outer annular fire cover includes a top wall and outer and inner annular walls connected to the top wall, the fire transfer slot extending between the outer and inner annular walls, the slot top wall being disposed on the top wall and protruding from the inner annular wall toward the inner annular fire cover, the ignition device being disposed at least partially between the inner annular wall and the inner annular fire cover.

3. A burner as claimed in claim 2, wherein in the horizontal direction there is a minimum distance L between the top wall of the trough and the centre of the inner annular fire cover, the inner annular wall having an inner diameter R, the difference between the inner diameter R and the minimum distance L being between 2mm and 5mm.

4. The burner of claim 1 wherein said trough ceiling is provided with a discharge boss projecting toward said opening and above said ignition device.

5. The burner of claim 4, wherein the minimum distance D of the discharge boss from the ignition device is between 3mm and 6mm.

6. The burner of claim 1 wherein said outer annular fire cover includes a top wall and outer and inner annular walls connected to said top wall, said fire transfer slot extending between said outer and inner annular walls, said slot top wall being disposed on said top wall, said fire transfer slot further including a pair of slot side walls connected to said slot top wall, said outer annular wall, said inner annular wall and a pair of said slot side walls circumscribing to form a first air intake slot, said outer annular fire cover being provided with a through hole communicating between said first air intake slot and said fire transfer slot.

7. The burner of claim 6, wherein the through-hole comprises a first through-hole having a first inlet disposed on the inner annular wall and a first outlet disposed on the slot sidewall and directed toward the ignition device.

8. The burner of claim 7, wherein the through-holes further comprise a second through-hole, a third through-hole, and a fourth through-hole disposed on the side wall of the slot, the first outlet, the second outlet of the second through-hole, the third outlet of the third through-hole, and the fourth outlet of the fourth through-hole being progressively closer to the outer annular wall, the fourth outlet being oriented toward the outer annular wall.

9. The burner of claim 6, wherein the main body includes a burner block and an ignition device disposed on the burner block, the inner annular flame cover and the outer annular flame cover each disposed on the ignition device, the ignition device including a bottom wall, a first annular wall, a second annular wall, and a boss, the first annular wall and the second annular wall each connected to the bottom wall, the first annular wall surrounding the second annular wall, the boss connected between the first annular wall and the second annular wall, the bottom wall, the first annular wall, the second annular wall, and the boss surrounding to form a second air intake channel, the first air intake channel and the second air intake channel communicating to form an outer annular air intake channel, the boss sealing the opening.

10. The burner of claim 9, wherein the boss comprises a first boss and a second boss connected to both sides of the first boss, the first boss being inserted into and blocking the opening, a pair of the groove side walls being abutted to the second boss in one-to-one correspondence.

11. A hob, characterized in, that it comprises a burner according to any one of the claims 1-10.