CN219494098U - Burner with a burner body - Google Patents

Abstract

The utility model provides a burner. The burner comprises a fire distributor and a fire cover covered on the fire distributor, wherein the fire distributor and the fire cover enclose to form a gas mixing cavity, a fire transmission part is arranged in the fire cover and comprises a pair of fire transmission side walls extending downwards from a fire cover top wall of the fire cover, the pair of fire transmission side walls are spaced along the circumferential direction of the fire cover and are opposite to each other, the bottom of the pair of fire transmission side walls is propped against the fire distributor, the fire cover top wall, the pair of fire transmission side walls and the fire distributor enclose to form a fire transmission cavity, and the fire transmission cavity extends from the inner circumferential side of the fire cover to the outer circumferential side and is communicated with the gas mixing cavity. The structure of distributor has been utilized like this to the setting, forms the biography fire chamber between fire lid, a pair of biography fire lateral wall and distributor, has simplified the structure of biography fire portion effectively, reduces the processing degree of difficulty and the manufacturing cost of combustor.

Description

Burner with a burner body

Technical Field

The utility model relates to the technical field of cooking appliances, in particular to a combustor.

Background

Currently, there are burners commonly found on household gas cookers, which generally comprise an outer ring fire cover and a central fire cover located in the center of the outer ring fire cover. The outer circumferences of the outer ring fire cover and the center fire cover are generally provided with fire holes, and the mixed gas of the fuel gas and the air flows out from the fire holes of the outer ring fire cover and the fire holes of the center fire cover and burns.

The flame is typically burned in the center flame cover and then conducted from the center flame cover to the outer ring flame cover. In order to facilitate the conduction of flame, the outer ring fire cover is usually provided with a fire transmission part. The burners are generally classified into hidden type and non-hidden type according to different fire transmission modes of the fire part. Wherein, the fire transmission process of hidden combustor takes place in the inside of outer loop fire lid, can avoid pot body overflow, greasy dirt etc. to splash to the portion of transmitting the fire better, because its fire effect of transmitting is more stable and receive the favor of more and more users.

However, the hidden burner has a complicated structure, and is difficult to process and high in production cost.

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 fire distributor and a fire cover covered on the fire distributor, wherein the fire distributor and the fire cover enclose to form a gas mixing cavity, a fire transmission part is arranged in the fire cover and comprises a pair of fire transmission side walls extending downwards from a fire cover top wall of the fire cover, the pair of fire transmission side walls are spaced along the circumferential direction of the fire cover and are opposite to each other, the bottom of the pair of fire transmission side walls is propped against the fire distributor, the fire cover top wall, the pair of fire transmission side walls and the fire distributor enclose to form a fire transmission cavity, and the fire transmission cavity extends from the inner circumferential side of the fire cover to the outer circumferential side and is communicated with the gas mixing cavity.

The burner provided by the application extends a pair of fire transmission side walls downwards from the fire cover top wall of the fire cover, the bottom of the pair of fire transmission side walls is propped against the distributor, and the contact part of the fire transmission side walls and the distributor can form a sealing surface. In this way, the top wall of the fire cover, the pair of fire transfer side walls and the distributor can be enclosed to form a fire transfer cavity so as to realize the conduction of flame from the inner peripheral side to the outer peripheral side of the fire cover. In the prior art, a complete fire transmission cavity is generally processed in the fire cover to realize the conduction of flame. The utility model provides a combustor, a pair of cooperation between passing fire lateral wall and distributor has utilized the structure of distributor better, when the fire lid carries out the buckle closure installation, forms the passing fire chamber between fire lid, a pair of passing fire lateral wall and distributor, has simplified the structure of passing fire portion effectively, reduces the processing degree of difficulty and the manufacturing cost of combustor.

Illustratively, the distributor is provided with upwardly projecting ribs, the bottoms of the pair of fire transfer side walls being in abutment with the upper surfaces of the ribs. The upper surface of the convex rib and the bottom of the pair of fire transmission side walls form a sealing surface, the sealing between the fire transmission cavity and the gas mixing cavity can be ensured only by considering the sealing between the convex rib and the pair of fire transmission side walls, and the requirements on the machining precision of other structures of the fire distributor are reduced. The fire distributor is provided with the convex ribs protruding upwards, so that the downward extending distance of the pair of fire transmission side walls can be correspondingly shortened, and the production difficulty and the cost are further reduced.

Illustratively, the distributor comprises a distributor bottom wall, a distributor inner side wall extending upward from an inner periphery of the distributor bottom wall, and a distributor outer side wall extending upward from an outer periphery of the distributor bottom wall, the bead is located on the distributor bottom wall and two ends of the bead are respectively connected with the distributor inner side wall and the distributor outer side wall. Therefore, the convex ribs extend along the direction from the inner periphery side to the outer periphery side of the fire cover and are in contact with the pair of fire transmission side walls, and the sealing between the fire transmission cavity and the gas mixing cavity can be better ensured. The gas mixture is prevented from flowing through the structure outside the gas channels of the fire transmission cavity and the gas mixing cavity, and the use safety is ensured.

The ribs are provided with positioning blocks protruding upwards, the positioning blocks extend into the space between the pair of fire transmission side walls, and two opposite sides of the positioning blocks along the circumferential direction are respectively attached to the corresponding fire transmission side walls. When the fire cover is installed, the gap between the pair of fire side walls can be aligned with the positioning block and inserted, and the installation is more convenient and efficient. The two sides of the positioning block are attached to the corresponding fire transmission side walls, and the attached surfaces can form sealing surfaces, so that the sealing between the fire transmission cavity and the gas mixing cavity is further ensured, and the use safety is ensured.

The positioning block is arranged in an extending manner along the radial direction of the distributor, and two ends of the positioning block are respectively connected with the inner side wall of the distributor and the outer side wall of the distributor in the radial direction. Therefore, the fire cover attached to the positioning block is limited in the radial direction, so that the relative positions of the distributor and the fire cover are fixed. The positioning block is attached to the pair of fire transmission side walls in the radial direction, so that the sealing between the fire transmission cavity and the gas mixing cavity is further improved.

Illustratively, the upper surface of the locating block is flush with the upper edge of the distributor inner side wall of the distributor and the upper edge of the distributor outer side wall of the distributor. The distributor that sets up like this, on the basis of guaranteeing the positioning action and the sealed effect of locating piece, make the locating piece can not occupy too much space in vertical direction, the structure sets up more rationally, and the production degree of difficulty is lower.

Illustratively, at least one of the pair of fire transfer side walls and the distributor is provided with a gas passage communicating the fire transfer chamber with the gas mixing chamber. The setting like this, the fire effect of passing the fire portion is more controllable, and the security is higher.

Illustratively, the gas passages are disposed on at least one of the pair of fire transfer sidewalls, the gas passages being disposed obliquely with respect to the fire transfer sidewall on which they reside. Like this, the structure sets up simpler, and the gas channel of slope setting can lengthen the circulation distance of gas mixture on passing the fire lateral wall better, avoids appearing from circumstances such as flame at gas channel's play fire end, guarantees to pass fire effect and passes fire stability.

Illustratively, the gas passages are inclined upwardly in a direction from the mixing chamber to the firedelivery chamber. Thus, the direction of the flame at the fire outlet end of the gas channel is inclined upwards, and the structure is more reasonable.

The distributor is provided with an upwardly projecting rib, on which an upwardly projecting positioning block is provided, and the orthographic projection of the gas channel on a vertical plane extending along the fire transfer chamber and the orthographic projection of the positioning block on the vertical plane have an at least partially structural overlap. By the arrangement, the structure of the pair of fire transmission side walls can be utilized more fully, the fire outlet end of the gas channel is not too high, the burning of the flame at the fire outlet end to the top wall of the fire cover is reduced, and the space occupied by the distributor and the fire cover in the vertical direction is reduced as much as possible.

Illustratively, one or both sides of the fire transfer chamber are respectively provided with a plurality of gas passages, which are spaced apart from each other in the radial direction of the fire cover. Therefore, the plurality of gas channels can lead the flames at all positions in the fire transferring cavity to be more uniform, and the fire transferring effect is better ensured.

Illustratively, the fire cover includes a fire cover outer side wall extending downwardly from an outer periphery of the fire cover top wall and a fire cover inner side wall extending downwardly from an inner periphery of the fire cover top wall, lower surfaces of the pair of transfer side walls being flush with lower surfaces of the fire cover outer side wall and the fire cover inner side wall. Therefore, the pair of fire transmission side walls do not need to extend downwards to protrude out of the lower surface of the inner side wall of the fire cover and the lower surface of the outer side wall of the fire cover, and the processing difficulty and the production cost of the fire cover can be effectively reduced.

The fire cover top wall is illustratively disposed obliquely upward in a direction from the inner peripheral side to the outer peripheral side, wherein the fire cover top wall includes a fire transfer portion forming a top wall of the fire transfer cavity, the fire transfer portion bulging upward so that the cross-sections of the respective portions of the fire transfer cavity are uniform. Thus, the flame uniformity in the fire transmission cavity is facilitated, and the fire transmission effect is better.

Illustratively, the top of the flame transfer portion is flush with the outer periphery of the top wall of the flame cover. Therefore, the fire cover can be better prevented from occupying excessive space in the vertical direction, and the structural arrangement is more reasonable.

Illustratively, each of the pair of fire-transmitting side walls has a thickness greater than or equal to 2mm. In this way, the contact surface between the bottoms of the pair of fire transmission side walls and the distributor is large enough to ensure the sealing effect between the gas mixing cavity and the fire transmission cavity.

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 a burner according to an exemplary embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a combustor according to an exemplary embodiment of the utility model;

FIG. 4 is an enlarged view of a portion A of FIG. 3;

FIG. 5 is a cross-sectional view of a combustor according to an exemplary embodiment of the utility model; wherein solid arrows represent fuel gas, open arrows represent air, and striped arrows represent a mixture of fuel gas and air;

FIG. 6 is a perspective view of an distributor according to an exemplary embodiment of the present utility model;

FIG. 7 is a perspective view of a fire cover according to an exemplary embodiment of the utility model;

FIG. 8 is a cross-sectional view of an distributor according to an exemplary embodiment of the present utility model; and

fig. 9 is a cross-sectional view of a fire cover according to an exemplary embodiment of the utility model.

Wherein the above figures include the following reference numerals:

100. a fire divider; 101. a mixing chamber; 110. convex ribs; 120. a distributor bottom wall; 130. an inner side wall of the distributor; 140. the outer side wall of the distributor; 150. a positioning block; 200. a fire cover; 210. a fire cover top wall; 211. a fire transfer section; 230. the inner side wall of the fire cover; 240. the outer side wall of the fire cover; 250. a fire hole; 260. a flame stabilizing groove; 300. a fire transmission part; 301. a fire transferring cavity; 310. a fire transfer side wall; 320. a gas channel; 321. a fire outlet end; 322. an air inlet end; 400. and a center fire cover.

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.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the present utility model. It will be apparent that embodiments of the utility model may be practiced without limitation to the specific details that are set forth by those skilled in the art. Preferred embodiments of the present utility model are described in detail below, however, the present utility model may have other embodiments in addition to these detailed descriptions.

For household gas cookers, the burner usually comprises an outer ring fire cover (also called a large fire cover) located on the outer ring and a central fire cover (also called a small fire cover) located in the center. The center fire cover and the outer ring fire cover can form at least two rings of flames, thereby providing multiple flame modes when the user uses the flame. Accordingly, the burner further includes a high fire distributor and a low fire distributor. The small fire distributor is arranged at the center of the big fire distributor. The outer ring fire cover and the center fire cover are respectively covered on the big fire distributor and the small fire distributor. The big fire distributor and the outer ring fire cover are buckled to form a big fire mixing cavity. The small fire distributor and the central fire cover are buckled to form a small fire mixing cavity. The burner's ignition pin is typically positioned around the center fire cap to ignite the gas of the light-fire mixing chamber. The flame of the large flame mixing chamber is usually ignited by the flame of the center fire cover.

The embodiment of the utility model provides a combustor. Referring to fig. 1, 2, 3 and 5 in combination, the burner may include a distributor 100 and a fire cover 200 that is fastened to the distributor 100. The distributor 100 and the fire cover 200 may enclose to form a mixing chamber 101. The fire transfer part 300 may be provided in the fire cover 200. The flame transfer portion 300 may include a pair of flame transfer side walls 310 extending downwardly from the flame cover top wall 210 of the flame cover 200. The pair of ignition sidewalls 310 may be spaced apart in the circumferential direction of the ignition cover 200 and opposite to each other. The pair of fire-transmitting side walls 310 may be disposed in parallel or may be disposed at an angle to each other. The bottom of the pair of fire sidewall 310 may be in abutment with the distributor 100. Specifically, the portions of the bottom of the pair of fire transfer sidewalls 310 that abut the distributor 100 may be any structure of the distributor 100. Preferably, the structure may be a part of the cavity bottom wall of the mixing cavity 101. The fire cover top wall 210, the pair of fire transfer side walls 310, and the distributor 100 may enclose a fire transfer cavity 301. The firetransfer chamber 301 may be understood as a chamber in which a pair of firetransfer sidewalls 310 are further isolated within the mixing chamber 101. The flame transfer cavity 301 may extend from the inner peripheral side to the outer peripheral side of the flame cover 200 and communicate with the air mixing cavity 101. A center fire cover 400 is provided on the inner peripheral side of the fire cover 200. One side of the firebox 301 is adjacent to the center firebox 400 (i.e., the inner peripheral side of the firebox) and the other side is adjacent to the firehole 250 (i.e., the outer peripheral side of the firebox). When in use, the gas and air enter the gas mixing chamber 101, and are mixed in the gas mixing chamber 101, and a part of the mixed gas of the gas and air (hereinafter referred to as gas mixture) after mixing enters the fire transfer chamber 301. The flame at the center fire cover 400 can ignite the gas mixture in the fire transferring cavity 301, and the flame is transferred from the inner circumference side to the outer circumference side of the fire cover 200 through the fire transferring cavity 301, so that the fire holes 250 on the fire cover 200 are ignited, and the flame transfer process is realized. The circumferential direction in this application is understood to be the direction of the enclosed fire cover 200, and is not limited to the shape of the fire cover 200. In the illustrated embodiment of the present application, the fire cover 200 is annular, and in other embodiments, the fire cover 200 may be square, or any other regular or irregular shape.

The burner provided herein extends downward from the flame cover top wall 210 of the flame cover 200 to a pair of flame transfer side walls 310, the bottoms of the pair of flame transfer side walls 310 are abutted against the flame divider 100, and the contact portions of the two can form sealing surfaces. In this manner, the flame cover top wall 210, the pair of flame transfer side walls 310, and the flame divider 100 may enclose the flame transfer cavity 301 to effect transfer of flame from the inner peripheral side to the outer peripheral side of the flame cover 200. In the prior art, a complete fire transmission cavity is generally processed in the fire cover to realize the conduction of flame. The burner that this application provided, the cooperation between a pair of fire transfer lateral wall 310 and the distributor 100 has utilized the structure of distributor 100 better, when the buckle closure installation is carried out to fire lid 200, forms the fire transfer chamber 301 between fire lid 200, a pair of fire transfer lateral wall 310 and distributor 100, has simplified the structure of passing fire portion 300 effectively, reduces the processing degree of difficulty and the manufacturing cost of combustor.

For example, referring to fig. 3, 6 and 7 in combination, the distributor 100 may be provided with an upwardly protruding bead 110, and the bottoms of the pair of fire transmitting side walls 310 may be abutted against the upper surfaces of the bead 110. The contact surface between the upper surface of the bead 110 and the bottoms of the pair of fire transmission side walls 310 forms a sealing surface, and only the sealing between the bead 110 and the pair of fire transmission side walls 310 needs to be considered, so that the sealing between the fire transmission cavity 301 and the air mixing cavity 101 can be ensured, and the requirements on the machining precision of other structures of the distributor 100 are reduced. The provision of the upwardly projecting bead 110 on the distributor 100 can correspondingly shorten the downwardly extending distance of the pair of fire transfer side walls 310, further reducing the difficulty and cost of production. In some embodiments, the pair of fire transfer side walls may directly abut against the distributor bottom wall of the distributor.

Illustratively, referring to FIG. 6, the distributor 100 can include a distributor bottom wall 120, a distributor outer sidewall 140, and a distributor inner sidewall 130. The distributor inner side wall 130 can extend upwardly from the inner periphery of the distributor bottom wall 120 and the distributor outer side wall 140 can extend upwardly from the outer periphery of the distributor bottom wall 120. The bead 110 may be located on the distributor bottom wall 120 and both ends of the bead 110 may be connected to the distributor inner side wall 130 and the distributor outer side wall 140, respectively. The ribs 110 may extend along any direction, so that two ends of the ribs are connected to the inner sidewall 130 and the outer sidewall 140 of the distributor. Illustratively, the ribs 110 may extend generally in the radial direction of the fire cover 200, as in the embodiment shown in fig. 6, or may be angled with respect to the radial direction. In this way, the ribs 110 extend in the direction from the inner peripheral side to the outer peripheral side of the flame cover 200 and are in contact with the pair of flame transfer side walls 310, and sealing between the flame transfer chamber 301 and the air mixing chamber 101 can be better ensured. The gas mixture is prevented from flowing through the structure outside the gas channels of the fire transmission cavity 301 and the gas mixture cavity 101, and the use safety is ensured.

For example, referring to fig. 4 and 6 in combination, the rib 110 may be provided with a positioning block 150 protruding upward, the positioning block 150 may extend between the pair of fire transfer sidewalls 310, and two opposite sides of the positioning block 150 in the circumferential direction may be respectively attached to the corresponding fire transfer sidewalls. Specifically, the pair of fire transfer side walls may include a first fire transfer side wall 311 and a second fire transfer side wall 312, and the first fire transfer side wall 311 and the second fire transfer side wall 312 may have the same structure and be symmetrically disposed. Opposite sides of the positioning block 150 are respectively attached to the first fire transfer side wall 311 and the second fire transfer side wall 312. When the fire cover 200 is installed, the gap between the pair of fire transmission side walls 310 can be aligned with the positioning block 150 and inserted, so that the installation is more convenient and efficient. The two sides of the positioning block 150 are attached to the corresponding fire transfer side walls, and the attached surfaces can form sealing surfaces, so that the sealing between the fire transfer cavity 301 and the gas mixing cavity 101 is further ensured, and the use safety is ensured.

For example, referring to fig. 6, the positioning block 150 may be disposed to extend in the radial direction of the distributor 100. In the radial direction, both ends of the positioning block 150 may be connected to the distributor inner side wall 130 of the distributor 100 and the distributor outer side wall 140 of the distributor 100, respectively. In this way, the fire cover 200 that is provided in contact with the positioning block 150 is limited in the radial direction, and the relative positions of the distributor 100 and the fire cover 200 can be further fixed. The positioning block 150 is attached to the pair of fire transfer side walls 310 in the radial direction, and further improves the sealing between the fire transfer cavity 301 and the air mixing cavity 101. In embodiments where the bead 110 is connected to the distributor inner side wall 130 and the distributor outer side wall 140, both may extend in the radial direction of the distributor 100. Or, in some embodiments, the positioning block may extend in other directions, so as to ensure that two ends of the positioning block are respectively connected with the inner side wall of the distributor and the outer side wall of the distributor. Alternatively, the plurality of positioning blocks may be provided in a direction from the inner peripheral side to the outer peripheral side of the distributor, and a certain interval may be provided between the plurality of positioning blocks.

For example, referring to fig. 2 and 6, the upper surface of the positioning block 150 may be flush with the upper edge of the distributor inner side wall 130 of the distributor 100 and the upper edge of the distributor outer side wall 140 of the distributor 100. I.e., the upper edges of the positioning block 150, the distributor inner side wall 130 and the distributor outer side wall 140 are at the same height. The distributor 100 arranged in this way ensures that the positioning block 150 does not occupy excessive space in the vertical direction on the basis of the positioning function and the sealing function of the positioning block 150, and the distributor is more reasonable in structural arrangement and lower in production difficulty. Of course, the setting of locating piece can set up according to the user demand, and the upper surface of locating piece can be less than or be higher than the upper edge of distributor lateral wall.

For example, referring to fig. 3-5 in combination, at least one of the pair of fire sidewall 310 and the distributor 100 may be provided with a gas channel 320. That is, the gas passages 320 may be provided only on the pair of ignition side walls 310, may be provided only on the distributor 100, or may be provided on both the pair of ignition side walls 310 and the distributor 100. In some embodiments, the gas channel may comprise two portions, one of which is disposed on the locating block and the other of which may be disposed on one of the pair of fire-transmitting side walls, i.e. the two portions are joined to form the gas channel. The gas passage 320 may communicate the firebox 301 with the gas mixing chamber 101. Specifically, the gas passage 320 may include an inlet end 322 and an outlet end 321. Wherein the air inlet end 322 is connected with the air mixing cavity 101, and the fire outlet end 321 is connected with the fire transmission cavity 301. The gas mixture in the gas mixing chamber 101 can enter the fire transferring chamber 301 through the gas channel 320, and is ignited at the fire outlet end 321 of the gas channel 320. By the arrangement, the fire transmission effect of the fire transmission part 300 is more controllable, and the safety is higher. The gas channel 320 may be set according to the use requirement. The gas channels 320 may be through holes as in the illustrated embodiment, through slots, or any other structure.

For example, referring to fig. 4, the gas passage 320 may be provided on at least one of the pair of fire transfer sidewalls 310, and the gas passage 320 may be provided obliquely with respect to the fire transfer sidewall where it is located. Like this, the structure sets up simpler, and the gas channel 320 of slope setting can lengthen the circulation distance of gas mixture on passing the fire lateral wall better, avoids appearing from circumstances such as flame at gas channel 320's play end 321, guarantees to pass fire effect and passes fire stability.

Illustratively, with continued reference to FIG. 4, the gas passages 320 may be inclined upwardly in a direction from the mixing chamber 101 to the firetransfer chamber 301. In this way, the direction of the flame at the flame-out end 321 of the gas channel 320 is inclined upward, and the structural arrangement is more reasonable. Of course, in some embodiments, the gas channels may be arranged in parallel or inclined downward.

Illustratively, referring to FIG. 4, the distributor 100 may be provided with upwardly projecting ribs 110. The ribs 110 may be provided with positioning blocks 150 protruding upward, and the orthographic projection of the gas passages 320 on a vertical plane extending along the fire transfer chamber 301 and the orthographic projection of the positioning blocks 150 on the vertical plane may have at least partial structural overlap. It will be appreciated that the lowermost end of the gas passage 320 (i.e., the gas inlet end 322) is located below the upper surface of the positioning block 150 in the vertical direction. By this arrangement, the structure of the pair of fire transfer side walls 310 can be utilized more fully, so that the fire outlet end 321 of the gas channel 320 is not too high, the burning of the fire cover top wall 210 by the flame of the fire outlet end 321 is reduced, and the space occupied by the distributor 100 and the fire cover 200 in the vertical direction as a whole is reduced as much as possible. Of course, in some embodiments, the gas channel may be located entirely above the locating block, i.e. on a vertical plane extending along the firetransfer chamber, with the orthographic projection of the gas channel being located above and spaced apart from the orthographic projection of the locating block on the vertical plane.

For example, referring to fig. 5 and 7, one or both sides of the fire transfer chamber 301 may be provided with a plurality of gas passages 320, respectively, the plurality of gas passages 320 being spaced apart from each other in the radial direction of the fire cover 200. In this way, the plurality of gas channels 320 can make the flames in the fire transferring cavity 301 more uniform and ensure the fire transferring effect better. Illustratively, gas passages 320 are provided on both sides of the fireconveying chamber, and the gas passages 320 may be provided on a pair of fireconveying side walls 310. Further, the same number of fire transfer channels 320 may be provided on each of the pair of fire transfer side walls 310. The number of gas passages 320 may be set according to the use requirement. Preferably, the fire transfer channels 320 on each fire transfer sidewall may be greater than or equal to three.

Illustratively, referring to fig. 7, the fire cover 200 may include a fire cover exterior sidewall 240 and a fire cover interior sidewall 230. The fire cover outer side wall 240 may extend downwardly from an outer periphery of the fire cover top wall 210 and the fire cover inner side wall 230 may extend downwardly from an inner periphery of the fire cover top wall 210. The lower surfaces of the pair of fire side walls 310 may be flush with the lower surfaces of the fire cover outer side wall 240 and the fire cover inner side wall 230. In this way, the pair of fire side walls 310 do not need to extend downward to protrude from the lower surface of the inner fire cover side wall 230 and the lower surface of the outer fire cover side wall 240, and the processing difficulty and production cost of the fire cover 200 can be effectively reduced. In an embodiment not shown, the lower surface of the inner fire cover side wall and the lower surface of the outer fire cover side wall may be flush, and the lower surfaces of the pair of transfer side walls may extend downward and protrude from the lower surfaces of the inner fire cover side wall and the outer fire cover side wall.

Illustratively, flame holding grooves 260 may be provided on the flame cover outer side wall 240 in the circumferential direction of the flame cover 200, and a pair of the flame transfer side walls 310 may be connected to the flame holding grooves 260. In this way, the flame in the flame transferring cavity 301 can be directly connected to the flame stabilizing groove 260, and the flame transferring effect is better.

For example, referring to fig. 1 and 2, the flame cover top wall 210 may be disposed obliquely upward in a direction from the inner peripheral side to the outer peripheral side. Wherein the fire cover top wall 210 may include a fire transfer portion 211 forming a top wall of the fire transfer cavity 301, the fire transfer portion 211 may bulge upward such that the cross-section of the various portions of the fire transfer cavity 301 is uniform. Thus, the flame uniformity in the fire transfer cavity 301 is facilitated, and the fire transfer effect is better. Of course, in some embodiments, the flame transfer portion may not protrude from other portions of the flame cover top wall, i.e., be consistent with the direction of extension of the flame cover top wall as a whole.

Illustratively, referring to fig. 2, 3 and 5, the top of the flame transfer portion 211 is flush with the outer periphery of the flame cover top wall 210. In this way, the fire cover 200 can be better prevented from occupying excessive space in the vertical direction, and the structural arrangement is more reasonable. Illustratively, the top of the flame transfer portion 211 may be in an upwardly bulged cylindrical configuration. Of course, the top of the fire transfer portion may be provided in any configuration depending on the use requirements. Illustratively, referring to FIG. 9, a distance H3 between the top of the fire transfer portion 211 to the bottom of the pair of fire transfer sidewalls 310 is greater than or equal to 5mm. In this way, the volume of the fire transferring cavity 301 is not too small to influence the air entering, and the fire transferring effect is ensured. Illustratively, in embodiments where the flame transfer portion 211 is cylindrical, the radius R1 of the cylinder may be greater than or equal to 2.5mm to further ensure that the volume of the flame transfer chamber 301 is not too small to affect the ingress of air.

For example, referring to fig. 8 and 9 in combination, the thickness H1 of each of the pair of fire side walls 310 may be greater than or equal to 2mm. In this way, the contact surface between the bottoms of the pair of fire transfer side walls 310 and the distributor 100 is sufficiently large to ensure a sealing effect between the mixing chamber 101 and the fire transfer chamber 301. Illustratively, the thickness H1 of each of the pair of fire transfer sidewalls 310 may be greater than or equal to the width H2 of the ribs 110 on each side to further ensure a seal between the mixing chamber 101 and the fire transfer chamber 301. In view of the tolerances in the actual machining process, H1 may be greater than or equal to H2+1mm.

Illustratively, to ensure installation between the fire cover 200 and the distributor 100, the width H5 between the pair of fire transfer sidewalls 310 may be greater than or equal to the width H4 of the locating block 150. In view of the tolerances in the actual machining process, H5 may be greater than or equal to H2+1mm.

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 example embodiments in accordance with the present application. 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 claims of the present application 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 present application described herein may be implemented in sequences other than those illustrated or 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 (15)

1. The utility model provides a combustor, includes distributor and buckle closure are in fire lid on the distributor, the distributor with the fire lid encloses to close and forms the gas mixing chamber, a serial communication port, be provided with the portion of passing fire in the fire lid, pass the portion of passing fire include follow the fire lid top wall downwardly extending's of fire lid a pair of fire lateral wall is along the circumference direction interval of fire lid and each other are relative, the bottom of a pair of fire lateral wall with the distributor offsets, fire lid roof a pair of fire lateral wall with the distributor encloses to close and forms and passes the fire chamber, pass the fire chamber follow the inner periphery side of fire lid extends to the periphery side and with the gas mixing chamber intercommunication.

2. The burner of claim 1 wherein said distributor is provided with upwardly projecting ribs, the bottoms of said pair of fire transfer side walls abutting the upper surfaces of said ribs.

3. The burner of claim 2 wherein the distributor comprises a distributor bottom wall, a distributor inner side wall extending upwardly from an inner periphery of the distributor bottom wall, and a distributor outer side wall extending upwardly from an outer periphery of the distributor bottom wall, the bead being located on the distributor bottom wall and the two ends of the bead being connected to the distributor inner side wall and the distributor outer side wall, respectively.

4. The burner of claim 2, wherein the bead is provided with an upwardly projecting locating block extending between the pair of fire transfer side walls and two opposite sides of the locating block in the circumferential direction are respectively bonded with the corresponding fire transfer side walls.

5. The burner of claim 4, wherein the positioning block extends in a radial direction of the distributor, and in the radial direction, both ends of the positioning block are respectively connected to an inner distributor sidewall of the distributor and an outer distributor sidewall of the distributor.

6. The burner of claim 4, wherein the upper surface of the locating block is flush with the upper edge of the distributor inner sidewall of the distributor and the upper edge of the distributor outer sidewall of the distributor.

7. The burner of claim 1, wherein at least one of the pair of fire transfer side walls and the distributor is provided with a gas passage communicating the fire transfer chamber with the mixing chamber.

8. The burner of claim 7 wherein said gas passage is provided on at least one of said pair of fire transfer sidewalls, said gas passage being disposed obliquely with respect to the fire transfer sidewall on which it is located.

9. The burner of claim 7 wherein said gas passage is upwardly inclined in a direction from said mixing chamber to said firepassing chamber.

10. The burner of claim 9 wherein said distributor is provided with an upwardly projecting bead, said bead being provided with an upwardly projecting locating block, the orthographic projection of said gas passage on a vertical plane extending along said firebox overlapping at least in part with the orthographic projection of said locating block on said vertical plane.

11. The burner of claim 7, wherein one or both sides of the flame transfer chamber are respectively provided with a plurality of the gas passages, the plurality of the gas passages being spaced apart from each other in a radial direction of the flame cover.

12. The burner of claim 1 wherein the fire cover includes a fire cover outer side wall extending downwardly from an outer periphery of the fire cover top wall and a fire cover inner side wall extending downwardly from an inner periphery of the fire cover top wall, lower surfaces of the pair of fire transfer side walls being flush with lower surfaces of the fire cover outer side wall and the fire cover inner side wall.

13. The burner of claim 1 wherein the flame cover top wall is upwardly inclined in a direction from the inner peripheral side to the outer peripheral side, wherein the flame cover top wall includes flame transfer portions forming a top wall of the flame transfer chamber, the flame transfer portions bulging upwardly so that the cross-sections of the respective portions of the flame transfer chamber are uniform.

14. The burner of claim 13 wherein the top of the flame transfer portion is flush with the outer periphery of the flame cover top wall.

15. The burner of claim 1, wherein a thickness of each of the pair of fire-passing side walls is greater than or equal to 2mm.