Distributor assembly and burner

Abstract

The utility model provides a distributor assembly and a combustor. The fire distributor assembly comprises a fire distributor body and a flame stabilizing ring, the fire distributor body is provided with an annular fire distributor gas mixing cavity and comprises a fire distributor inner wall arranged on the inner side of the fire distributor gas mixing cavity, and a plurality of first ignition holes are formed in the fire distributor inner wall; the flame stabilizing ring is connected to the inner wall of the fire distributor, the flame stabilizing ring and the inner wall of the fire distributor have an overlapped part, and second ignition holes communicated with the first ignition holes one by one are formed in the positions, corresponding to the overlapped part, of the flame stabilizing ring. According to the distributor assembly, the plurality of first ignition holes are formed in the distributor body, the second ignition holes are formed in the positions, corresponding to the first ignition holes, of the flame stabilizing ring, and the depth of the distributor body at the first ignition holes is increased through the flame stabilizing ring, so that compared with the prior art, airflow at the first ignition holes is more stable; and flames are relatively blue and uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a fire distributor assembly and a burner. Background Art

[0002] The burner head of the burner is usually formed with an inner ring mixing chamber and an outer ring mixing chamber. There are two main relative positions and structures of the outer ring mixing chamber and the inner ring mixing chamber: one is that the outer ring mixing chamber surrounds the inner ring mixing chamber. Such a structure is widely used due to its advantages such as simple structure, small size and low cost. However, this structure has the defects of insufficient entrainment, insufficient blue flame and insufficient uniform flame. The other is that at least one outer ring mixing chamber is arranged on one side of the inner ring mixing chamber, and it is non-concentric with the inner ring mixing chamber, especially when multiple outer ring mixing chambers are arranged at equal intervals along the circumference of the inner ring mixing chamber, the outer ring flame formed is bluer and more uniform than the former flame, but this structure usually adopts gravity casting or die casting, which has high process difficulty and low manufacturing efficiency, and still has the defects of low combustion efficiency and insufficient flame uniformity.

[0003] Therefore, it is necessary to further optimize the burner head and make corresponding optimization designs for other parts of the burner such as the fire cover assembly, the ejector tube assembly and the flame distributor assembly. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above problems and / or other problems existing in the prior art.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] According to one aspect of the utility model, there is provided a ignition divider assembly, which includes a ignition divider body and a flame stabilizing ring, the ignition divider body having an annular ignition divider gas mixing chamber and including an ignition divider inner wall arranged on the inner side of the ignition divider gas mixing chamber, the ignition divider inner wall being provided with a plurality of first ignition holes; the flame stabilizing ring is connected to the ignition divider inner wall and has an overlapping portion with the ignition divider inner wall, the flame stabilizing ring being provided with second ignition holes corresponding to the overlapping portion and being connected one-to-one with the first ignition holes.

[0007] According to one embodiment of the utility model, the inner wall of the ignition divider includes an ignition hole portion extending at least a portion along its circumference, and the plurality of first ignition holes are arranged at equal intervals in the ignition hole portion along the circumference of the inner wall of the ignition divider.

[0008] According to one embodiment of the utility model, the flame stabilizing ring includes a flame stabilizing ring body, at least a portion of the outer peripheral wall of the flame stabilizing ring body is in contact with the ignition hole portion, and the multiple second ignition holes are arranged on the portion of the outer peripheral wall and are connected one by one with the multiple first ignition holes.

[0009] According to one embodiment of the utility model, the flame stabilizing ring further comprises a flame stabilizing ring connecting portion connected to the top of the flame stabilizing ring body, and the flame stabilizing ring connecting portion extends radially outwardly along the flame stabilizing ring to abut against the top of the inner wall of the ignition divider.

[0010] According to one embodiment of the utility model, the top of the flame stabilizing ring connecting portion has a first slope and a second slope, the first slope is configured to be flush with the inner circumferential surface of the outer fire cover, and the second slope matches the inner end bottom surface of the outer fire cover.

[0011] According to one embodiment of the utility model, the ignition divider body also includes an ignition extension portion integrally formed in the ignition hole portion, the ignition extension portion extends radially along the ignition divider body into the ignition divider gas mixing chamber, and the ignition extension portion is provided with a third ignition hole that penetrates the first ignition hole.

[0012] According to one embodiment of the utility model, the flame-stabilizing ring body and the inner wall of the ignition divider are fixed by riveting, and the first ignition hole, the second ignition hole and the third ignition hole are integrally formed in the ignition hole portion, the flame-stabilizing ring body and the ignition extension portion by riveting and then drilling.

[0013] According to an embodiment of the present utility model, the third ignition hole, the first ignition hole and the second ignition hole are connected in sequence and extend obliquely upward along the gas flow direction.

[0014] According to another aspect of the utility model, a burner is provided. The burner includes the aforementioned igniter assembly, a base assembly, and an ejector tube assembly. The bottom of the igniter gas mixing chamber is formed with a first igniter inlet and a second igniter inlet; the base assembly includes a base body formed with a first base outlet and a second base outlet, the first base outlet is connected to the first igniter inlet, the second base outlet is connected to the second igniter inlet, and the base body is also extended outwardly to be provided with at least one air inlet pipe; the ejector tube assembly includes at least one ejector tube body corresponding to the air inlet pipe.

[0015] According to an embodiment of the present utility model, the burner further includes an outer ring ignition needle, and the needle tip of the outer ring ignition needle is correspondingly arranged at the second ignition hole.

[0016] An embodiment of the present invention has the following advantages or beneficial effects:

[0017] The ignition divider assembly of the utility model is provided with a plurality of first ignition holes on the ignition divider body, and a second ignition hole is provided at a position of a flame stabilizing ring corresponding to the first ignition hole, and the depth of the ignition divider body at the first ignition hole is increased by the flame stabilizing ring. Compared with the prior art, the airflow at the first ignition hole is smoother, and the flame is bluer and more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0019] Figure 1 A perspective view of a burner according to an exemplary embodiment of the present invention is shown.

[0020] Figure 2 Show Figure 1 Exploded view of the burner shown.

[0021] Figure 3 Show Figure 1 The burner is shown in cross-section along a vertical plane passing through the inner ring inlet duct.

[0022] Figure 4 Show Figure 1 A perspective view of the inner fire cap of the burner is shown.

[0023] The reference numerals are described as follows:

[0024] 1. ejector tube assembly; 11. ejector tube body; 111. straight tube section; 112. expansion section; 113. nozzle; 114. outer ring ejector tube; 115. inner ring ejector tube; 12. second connecting portion; 121. second connecting hole; 13. sealing ring; 2. base assembly; 21. base body; 211. inner ring mixing chamber; 2111. first inner ring chamber; 21111. first inner ring inner wall; 21112. first inner ring outer wall; 21113. first inner ring bottom wall; 21114. first inner ring side wall; 2112. second inner ring chamber; 21121. second inner ring Outer wall; 21122, inner wall of the second inner ring; 21123, bottom wall of the second inner ring; 212, secondary air inlet; 213, inner ring baffle; 214, inner ring support column; 215, first outer ring mixing chamber; 2151, first outer ring bottom wall; 2152, first outer ring side wall; 2153, first outer ring inner wall; 2154, first outer ring outer wall; 216, second outer ring mixing chamber; 2161, second outer ring side wall; 2162, second outer ring inner wall; 2163, second outer ring outer wall; 22, air intake pipe; 221, outer ring air intake pipe; 222, inner ring air intake pipe; 23 , first connecting part; 231, first connecting hole; 3, igniter assembly; 31, igniter body; 311, igniter gas mixing chamber; 312, igniter bottom wall; 3121, first igniter inlet; 3122, second igniter inlet; 313, igniter inner wall; 3131, ignition hole; 31311, first ignition hole; 314, igniter outer wall; 315, ignition extension; 3151, third ignition hole; 32, flame stabilizing ring; 321, second ignition hole; 322, flame stabilizing ring body; 323, flame stabilizing ring connecting part; 3231, first inclined surface; 3232 , the second inclined surface; 33, the ignition divider baffle; 4, the inner ring ignition needle; 5, the outer ring ignition needle; 6, the fire cover assembly; 61, the inner fire cover; 611, the inner fire cover body; 6111, the inner fire cover inner wall; 61111, the auxiliary fire hole; 61112, the first area; 6112, the inner fire cover top wall; 61121, the fire groove group; 611211, the main fire groove; 611212, the flame stabilizing groove; 6113, the inner fire cover outer wall; 6114, the inner fire cover cavity; 612, the shielding part; 613, the first baffle; 6131, the first through hole; 6132, the second through hole; 62, the outer fire cover. DETAILED DESCRIPTION

[0025] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0026] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0027] Figures 1 to 3 FIG. 2 shows a burner of an embodiment of the present utility model. Figure 2 and Figure 3 As shown, the burner may include an ejector tube assembly 1, a base assembly 2, an ignition distributor assembly 3, an inner ring ignition needle 4, an outer ring ignition needle 5 and a fire cover assembly 6 connected in sequence. The ejector tube assembly 1 may include at least one ejector tube body 11, the base assembly 2 may include a base body 21 and at least one air inlet pipe 22 extending outward from the base body 21, and at least one ejector tube body 11 is arranged in a one-to-one correspondence with at least one air inlet pipe 22 body. Each ejector tube body 11 may include a straight pipe section 111 and a diffuser section 112 connected to the straight pipe section 111, at least a portion of the diffuser section 112 extends into the air inlet pipe 22, and the diameter of the air inlet pipe 22 is larger than the diameter of the straight pipe section 111, and the diameter of the diffuser section 112 gradually expands from the diameter of the straight pipe section 111 to the diameter of the air inlet pipe 22 along the flow direction of the gas, thereby reducing the turbulence caused by the gas impacting the air inlet pipe 22. In addition, the air inlet pipe 22 further extends the length of the ejector pipe body 11, and fully mixes the gas (e.g., a mixture of air and gas) entering the ejector pipe body 11. It is understandable that a nozzle 113 is provided at one end of the ejector pipe away from the diffuser section 112, and when the gas from the municipal pipeline enters the ejector pipe body 11 through the nozzle 113, the primary air entering from the nozzle 113 due to the negative pressure can form a mixed gas of air and gas in the ejector pipe body 11.

[0028] The ejector tube assembly 1 and the base assembly 2 of the prior art usually include a split design of upper and lower parts, which are fixed by gluing and screws, thus bringing about the problem of high difficulty in processing. Compared with the prior art, the connection structure of the burner of the embodiment of the utility model is achieved by docking the air intake pipe 22 of the base assembly 2 with the diffuser section 112 of the ejector tube body 11, which can ensure the integrity of the ejector tube body 11 while also ensuring the ejection and mixing capabilities of the ejector tube body 11, thereby reducing its process difficulty. Compared with the prior art, the number of parts can be reduced and the cost can be reduced by merging parts while ensuring performance.

[0029] Furthermore, the diffusion angle of the diffuser section 112 is 6° to 8°, which effectively improves the diffusion effect of the diffuser section 112, so that the mixed gas formed by the fuel gas and the air can be mixed more fully. The diameter of the intake pipe 22 is 1 to 2 times that of the straight pipe section 111, so that the ejector tube body 11 can ensure that the wall thickness is sufficient when extending along the diffusion angle. The ejector tube can be extended long enough, and the ejection ability is strong, so that the mixed gas can be fully mixed and the performance is better. It can be understood that the plane passing through the center line of the diffuser section 112 cuts the diffuser section 112 to form a cross-section of the diffuser section 112. On this cross-section, the angle defined by the inner wall of the diffuser section 112 (shown as two straight lines on the cross-section) is the diffusion angle of the diffuser section 112.

[0030] According to an exemplary embodiment of the connection method between the base assembly 2 and the ejector tube assembly 1, as shown in FIG. Figures 1 to 3 As shown, the end of the air inlet pipe 22 away from the base body 21 ( Figures 1 to 3 A first connection portion 23 is provided at the right end of the intake pipe 22 shown in the figure (or the starting end along the gas flow), and a second connection portion 12 is provided at the periphery of the connection between the diffuser section 112 and the straight pipe section 111, so that when the diffuser section 112 is inserted into the intake pipe 22, the second connection portion 12 is sealed and connected to the first connection portion 23.

[0031] Furthermore, the first connection part 23 and the second connection part 12 are provided with a first connection hole 231 and a second connection hole 121 at corresponding positions of the overlapping parts thereof, and the first bolt is fastened by the first nut after passing through the first connection hole 231 and the second connection hole 121. By fixing the base assembly 2 and the ejector tube assembly 1 in a docking manner and providing a sealing ring 13 between the first connection part 23 and the second connection part 12, the process is simple and the sealing performance is good.

[0032] According to an exemplary embodiment of the intake pipe 22, Figure 2 As shown, at least one air intake pipe 22 may include an outer ring air intake pipe 221, and at least one ejector pipe body 11 may include an outer ring ejector pipe 114 at least a portion of which extends into the outer ring air intake pipe 221. At least one air intake pipe 22 may also include an inner ring air intake pipe 222, and at least one ejector pipe body 11 may also include an inner ring ejector pipe 115 at least a portion of which extends into the inner ring air intake pipe 222. It is understandable that the outer ring ejector pipe 114 and the inner ring ejector pipe 115 are arranged side by side and pass through the second connecting portion 12 at the same time. The outer ring ejector pipe 114 and the inner ring ejector pipe 115 both include a diffuser section 112 and a straight pipe section 111. Referring to the aforementioned connection method, when the diffuser section 112 of the outer ring ejector pipe 114 is inserted into the outer ring air intake pipe 221, and the diffuser section 112 of the inner ring ejector pipe 115 is inserted into the inner ring air intake pipe 222, the first connecting portion 23 and the second connecting portion 12 are fixedly connected.

[0033] According to an exemplary embodiment of the base body 21, Figures 1 to 3 As shown, the base body 21 is surrounded by an inner ring gas mixing chamber 211. The inner ring gas mixing chamber 211 includes a first inner ring chamber 2111 and a second inner ring chamber 2112 which are stacked and connected from bottom to top. The cross section of the first inner ring chamber 2111 is fan-shaped, and the cross section of the second inner ring chamber 2112 is annular and is coaxially arranged with the first inner ring chamber 2111. The base body 21 is provided with a secondary air inlet 212, the cross section of the secondary air inlet 212 is fan-shaped and is arranged opposite to the first inner ring chamber 2111. The secondary air entering the middle of the inner ring gas mixing chamber 211 through the secondary air inlet 212 provides secondary air supplement for the combustion of the inner ring flame, so that the mixed gas in the inner ring gas mixing chamber 211 can be fully burned, reducing the yellow incomplete combustion flame and making the inner ring flame bluer. The top of the second inner ring chamber 2112 is open and connected to the inner fire cover 61 of the fire cover assembly 6 (which will be described in detail below).

[0034] Furthermore, the first inner ring cavity 2111 and the secondary air inlet 212 extend 180° along the circumference of the base body 21 respectively, so that the secondary air inlet 212 and the first inner ring cavity 2111 can be combined to form a complete annular structure, providing more secondary air supplement for the inner ring flame.

[0035] In order to form the first inner ring cavity 2111, as Figure 3 As shown, the base body 21 may also include a first inner ring inner wall 21111, a first inner ring outer wall 21112, a first inner ring bottom wall 21113 and two first inner ring side walls 21114 arranged in the same vertical plane. The two first inner ring side walls 21114 extend from the first inner ring inner wall 21111 to the first inner ring outer wall 21112 in opposite directions along the radial direction of the base body 21, respectively, to form a cylindrical structure with a cross section that is a fan-shaped structure with a central angle of 180°, and the bottom wall of the cylindrical structure is blocked by the first inner ring bottom wall 21113. The inner ring air inlet pipe 222 is connected to the outer periphery of the first inner ring cavity 2111 (the bottom of the circumferential middle of the first inner ring outer wall 21112) and extends radially outward (away from the side of the base body 21) of the first inner ring cavity 2111.

[0036] Continue to refer Figure 3The base body 21 further includes a second inner ring outer wall 21121, a second inner ring inner wall 21122, and a second inner ring bottom wall 21123. The second inner ring bottom wall 21123 is connected to the top of the first inner ring inner wall 21111 and extends in the horizontal direction. The second inner ring inner wall 21122 and the second inner ring outer wall 21121 continue to extend upward at the corresponding positions of the first inner ring inner wall 21111 and the first inner ring outer wall 21112, respectively, and extend in the circumferential direction of the base body 21, so as to form a second inner ring cavity 2112 in an annular shape at the top of the first inner ring cavity 2111 and communicate with the first inner ring cavity 2111.

[0037] Further, refer to Figure 3 As shown, the base body 21 also includes an inner ring partition 213 disposed on the first inner ring inner wall 21111 and extending in the horizontal direction outside the first inner ring cavity 2111. There is a certain distance between the inner ring partition 213 and the second inner ring bottom wall 21123, so that the secondary air inlet 212 is defined by the inner ring partition 213, the second inner ring bottom wall 21123 and the two first inner ring side walls 21114. It can be understood that the height of the secondary air inlet 212 can be determined by the fuel gas ratio of the mixed gas in the inner ring mixing cavity 211. When a large amount of secondary air needs to be supplemented, the distance between the inner ring partition 213 and the second inner ring bottom wall 21123 can be appropriately increased.

[0038] Since only half of the components surrounding and forming the second inner ring cavity 2112 are supported on the components of the first inner ring cavity 2111, in order to improve the connection strength of the base body 21, as shown in FIG. Figure 3 As shown, the base body 21 may further include an inner ring support column 214 disposed in the middle of the secondary air inlet 212. The inner ring support column 214 extends downward from the second inner ring bottom wall 21123 to the inner ring support column 214, thereby supporting the components of the second inner ring cavity 2112 and the ignition device assembly 3 and the fire cover assembly 6 connected to the base body 21 together with the components of the first inner ring cavity 2111.

[0039] Continue to refer Figure 3 The base body 21 is also surrounded by a first outer ring mixing chamber 215 and a second outer ring mixing chamber 216 which are arranged at intervals along the circumference thereof and extend in the up-down direction respectively. The outer ring air inlet pipe 221 is connected to the first outer ring mixing chamber 215 and the second outer ring mixing chamber 216 respectively, thereby providing mixed gas to the second outer ring mixing chamber 216 and the first outer ring mixing chamber 215 in turn. Figure 3When viewed in the vertical direction as shown, the outer ring air inlet pipe 221 is in the shape of a straight tube, the first outer ring air mixing chamber 215 is located at the far end of the outer ring air inlet pipe 221, and the angle between the first outer ring air mixing chamber 215 and the second outer ring air mixing chamber 216 is an acute angle, and the flow area of ​​the first outer ring air mixing chamber 215 is greater than the flow area of ​​the second outer ring air mixing chamber 216, so that more mixed gas can enter at the far end of the air inlet pipe 22, so that when the base body 21 is connected to the ignition divider assembly 3, after flowing into the ignition divider assembly 3 from the first outer ring air mixing chamber 215, it can flow in a clockwise direction to the corresponding position of the second outer ring air mixing chamber 216, thereby making the air mixture of the entire burner more uniform, and thus the ignition is more uniform.

[0040] According to an exemplary embodiment of the first outer ring mixing chamber 215, Figure 3 As shown, the first outer ring mixing chamber 215 has a first outer ring bottom wall 2151, the starting end of which is connected to the terminal bottom wall of the intake pipe 22, and gradually rises along the circumferential flow direction of the gas on the base body 21, thereby forming a gradually raised flow height of the gas, preventing the gas from directly hitting the inner wall of the first outer ring mixing chamber 215 and generating turbulence.

[0041] Furthermore, if Figure 3 As shown, the first outer ring mixing chamber 215 may also include two first outer ring side walls 2152 spaced apart in the radial direction of the base body 21, and a first outer ring inner wall 2153 and a first outer ring outer wall 2154 spaced apart in the radial direction of the base body 21, the two first outer ring side walls 2152 respectively extending upward along the first outer ring bottom wall 2151, one of the first outer ring side walls 2152 extending upward from the end of the outer ring air inlet pipe 221, and the other first outer ring side wall 2152 being arranged in a clockwise direction on a side of the first outer ring mixing chamber 215 away from the outer ring air inlet pipe 221. The flow area of ​​the first outer ring mixing chamber 215 is defined by the two first outer ring side walls 2152, the first outer ring outer wall 2154, the first outer ring inner wall 2153 and the first outer ring bottom wall 2151.

[0042] According to an exemplary embodiment of the second outer ring mixing chamber 216, Figure 2 As shown, the second outer ring mixing chamber 216 includes two second outer ring side walls 2161 respectively extending upward from the outer ring air inlet pipe 221, and includes a second outer ring inner wall 2162 and a second outer ring outer wall 2163 spaced apart along the radial direction of the base body 21. Both second outer ring side walls 2161 are arranged along the radial direction of the base body 21, and the second outer ring side wall 2161 (located downstream of the outer ring air inlet pipe 221 in the direction of gas flow) Figure 2 The second outer ring side wall 2161 on the left side shown in the figure is connected to the first outer ring side wall 2152 ( Figure 2The first outer ring side wall 2152 on the right side shown in the figure is arranged at intervals and the angle between the two is acute, so that the outer ring air intake pipe 221 is connected with the first outer ring air mixing chamber 215 after being connected with the second outer ring air mixing chamber 216.

[0043] In the above embodiment, the second outer ring side wall 2161 ( Figure 2 The second outer ring side wall 2161 on the right side is connected to the first outer ring side wall 2152 ( Figure 2 A base bracket is provided between the second outer ring side wall 2161 on the right side shown, and the base bracket can strengthen the support strength of the wall of the first outer ring mixing chamber 215 and the wall of the second outer ring mixing chamber 216. Air channels are provided at intervals on the base bracket to facilitate air to enter the interior of the base body 21 from bottom to top or from outside to inside.

[0044] According to an exemplary embodiment of the ignition distributor assembly 3, Figure 2As shown, the igniter assembly 3 includes an igniter body 31, a flame stabilizing ring 32 and an igniter baffle 33. The igniter body 31 has an annular igniter gas mixing chamber 311 and includes an igniter bottom wall 312, an igniter inner wall 313 and an igniter outer wall 314 respectively arranged on the bottom side, the inner side and the outer side of the igniter gas mixing chamber 311. The igniter inner wall 313 includes an ignition hole portion 3131 extending at least a portion along its circumference, and the igniter body 31 also includes an ignition extension portion 315 integrally formed in the ignition hole portion 3131, and the ignition extension portion 315 extends into the igniter gas mixing chamber 311 along the radial direction of the igniter body 31. The igniter inner wall 313 is provided with a plurality of first ignition holes 31311 that penetrate the ignition hole portion 3131 at intervals corresponding to the ignition hole portion 3131, and the ignition extension portion 315 is provided with a third ignition hole 3151 that penetrates the first ignition hole 31311. The ignition extension portion 315 is helpful to increase the thickness of the first ignition hole 31311 set on the inner wall 313 of the igniter, so that the gas outlet of the first ignition hole 31311 is more uniform. The first igniter inlet 3121 corresponding to the first outer ring gas mixing chamber 215 and the second igniter inlet 3122 corresponding to the second outer ring gas mixing chamber 216 are arranged on the bottom wall 312 of the igniter at intervals, so that the gas of the first outer ring gas mixing chamber 215 and the second outer ring gas mixing chamber 216 can enter the igniter gas mixing chamber 311 through the first igniter inlet 3121 and the second igniter inlet 3122 respectively. The first ignition hole 31311 and the third ignition hole 3151 are both arranged at the corresponding positions of the first igniter inlet 3121, so that the gas can enter the multiple first ignition holes 31311 through the first igniter inlet 3121 and the igniter gas mixing chamber 311. The second ignition divider inlet 3122 and the first ignition divider inlet 3121 are spaced apart from each other along the circumferential direction of the ignition divider body 31 and extend from the ignition divider inner wall 313 to the ignition divider outer wall 314 respectively.

[0045] According to an exemplary embodiment of the flame stabilizing ring 32, Figure 3As shown, the flame stabilizing ring 32 is connected to the inner wall 313 of the igniter, and has an overlapping portion with the inner wall 313 of the igniter. The flame stabilizing ring 32 is provided with a second ignition hole 321 corresponding to the overlapping portion and connected to the first ignition hole 31311. The needle tip of the outer ring ignition needle 5 is correspondingly arranged at the second ignition hole 321. The third ignition hole 3151, the first ignition hole 31311 and the second ignition hole 321 are connected in sequence and extend obliquely upward along the gas flow direction, so that when the flame stabilizing ring 32 is connected to the igniter body 31, the gas in the igniter gas mixing chamber 311 can pass through the third ignition hole 3151, the first ignition hole 31311 and the second ignition hole 321 in sequence. Specifically, the flame stabilizing ring 32 may include a flame stabilizing ring body 322, at least a portion of the outer peripheral wall of the flame stabilizing ring body 322 is in contact with the ignition hole portion 3131, and a plurality of second ignition holes 321 are arranged on the outer peripheral wall of the portion and are connected one by one with the plurality of first ignition holes 31311, so as to facilitate the outer ring ignition needle 5 to be set in the area for ignition. In addition, the flame stabilizing ring 32 may also include a flame stabilizing ring connecting portion 323 connected to the top of the flame stabilizing ring body 322, and the flame stabilizing ring connecting portion 323 extends radially outward from the flame stabilizing ring 32 to abut against the top of the inner wall 313 of the ignition distributor. The top of the flame stabilizing ring connection part 323 has a first inclined surface 3231 and a second inclined surface 3232, the first inclined surface 3231 is configured to be flush with the inner peripheral surface of the outer fire cover 62 (which will be described in detail below) of the fire cover assembly 6, and the second inclined surface 3232 matches the inner end bottom surface of the outer fire cover 62, so that the flame stabilizing ring connection part 323 can be completely engaged with the inner peripheral edge of the outer fire cover 62. More preferably, the flame stabilizing ring body 322 and the inner wall 313 of the ignition divider are fixed by riveting, and the first ignition hole 31311, the second ignition hole 321 and the third ignition hole 3151 are integrally formed in the ignition hole part 3131, the flame stabilizing ring body 322 and the ignition extension part 315 by riveting and then drilling. The flame-stabilizing ring body 322 is made of copper, and the ignition divider body 31 is made of aluminum. This can reduce the amount of copper used in the flame-stabilizing ring body 322 and reduce the processing difficulty. The wall thickness of the aluminum ignition divider body 31 can also be used to make the fire hole long enough to prevent flame separation. It can also further reduce costs and increase the amount of gas flowing through the ignition hole.

[0046] According to an exemplary embodiment of the fire distributor baffle 33, as shown in FIG. Figure 2 and Figure 3As shown, the igniter baffle 33 is disposed between the first igniter inlet 3121 and the first ignition hole 31311, so that the flow rate of the gas can be reduced in the process of entering the first ignition hole 31311 through the igniter mixing chamber 311 via the first igniter inlet 3121, so that the flame at the second ignition hole 321 is more uniform. Specifically, the igniter baffle 33 is connected to the igniter inner wall 313 and extends from the igniter inner wall 313 in the horizontal direction in the igniter mixing chamber 311. The igniter baffle 33 is also staggered with the igniter bottom wall 312 in the vertical direction, so that a gap in the vertical direction can be generated between the igniter bottom wall 312 and the igniter baffle 33 for gas to flow through. Further, the projection of the fire divider baffle 33 and the fire divider bottom wall 312 in the vertical direction has a gap, that is, when viewed downward along the axial direction of the fire divider body 31, there is a gap between the fire divider baffle 33 and the fire divider bottom wall 312, so that the flow area of ​​the gas between the fire divider baffle 33 and the fire divider bottom wall 312 can be slightly increased, thereby further slowing down the flow rate of the gas. Preferably, the gap is 2mm to 5mm. Preferably, the fire divider baffle 33 is formed integrally on the fire divider body 31.

[0047] According to an exemplary embodiment of the fire cover assembly 6, Figures 1 to 3 As shown, the fire cover assembly 6 may include an inner fire cover 61 covering the top opening of the second inner ring cavity 2112 and an outer fire cover 62 covering the top opening of the ignition divider mixing cavity 311 .

[0048] Figure 4 The inner fire cover 61 of the burner of the utility model embodiment is shown. Figure 3 and Figure 4 As shown, the inner fire cover 61 may include an inner fire cover body 611 and a shielding portion 612. The inner fire cover body 611 includes an inner fire cover inner wall 6111, an inner fire cover top wall 6112 and an inner fire cover outer wall 6113, which surround an inner fire cover cavity 6114 with a bottom opening and are respectively located at the inner side, top side and outer side of the inner fire cover cavity 6114. A plurality of fire groove groups 61121 are arranged at intervals on the inner fire cover top wall 6112, and a plurality of auxiliary fire holes 61111 are arranged on the inner fire cover inner wall 6111 close to the inner fire cover top wall 6112. Through the auxiliary fire holes 61111, the gas in the inner fire cover cavity 6114 can be depressurized after all the fire groove groups 61121 are blocked by oil stains. When the gas at the fire groove groups 61121 burns normally, the gas at the auxiliary fire holes 61111 can also burn normally. The shielding portion 612 is disposed on one side of the plurality of auxiliary fire holes 61111 close to the top wall 6112 of the inner fire cover ( Figure 3The inner wall 6111 of the inner fire cover is shown as being located above the plurality of auxiliary fire holes 61111) and connected to the inner wall 6111 of the inner fire cover, and the auxiliary fire holes 61111 can be blocked by the shielding portion 612 from the oil dirt above the inner fire cover top wall 6112. The inner fire cover outer wall 6113 is connected to the outer periphery of the inner fire cover top wall 6112 and is arranged corresponding to the inner fire cover inner wall 6111. The fire groove group 61121 of the inner fire cover top wall 6112 extends from the inner fire cover inner wall 6111 to the inner fire cover outer wall 6113 along the inner fire cover top wall 6112.

[0049] According to an exemplary embodiment of the inner wall 6111 of the inner fire cover, Figure 4 As shown, the inner wall 6111 of the inner fire cover includes a first area 61112 extending at least a portion thereof in the circumferential direction, and a plurality of auxiliary fire holes 61111 are arranged at equal intervals in the circumferential direction of the first area 61112, so that the plurality of auxiliary fire holes 61111 can be concentrated in the first area 61112 of the inner wall 6111 of the inner fire cover, so that the auxiliary fire holes 61111 can be protected by a shielding portion 612 of a relatively short length. Thus, the shielding portion 612 can be arranged in the first area 61112 and extend radially inward from the inner wall 6111 of the inner fire cover along the inner wall 6111 of the inner fire cover. Furthermore, the shielding portion 612 may include a first end and a second end extending radially along the inner fire cover body 611, wherein the first end is close to the center of the inner fire cover body 611 and its length is smaller than the length of the second end, so that the shielding portion 612 is configured into a fan-shaped structure, thereby minimizing the blocking effect on the gas flowing through the center of the inner fire cover body 611, while also protecting the multiple auxiliary fire holes 61111.

[0050] According to a further exemplary embodiment of the inner fire cover 61, Figure 4 As shown, the inner fire cover 61 may also include a first baffle 613 extending inward from the bottom of the inner wall 6111 of the inner fire cover, and the first baffle 613 is provided with a first through hole 6131 for air to pass through. In addition, the first baffle 613 is also provided with a second through hole 6132 for the inner ring ignition needle 4 to pass through. The projections of the second through hole 6132, the first through hole 6131 and the shielding portion 612 on the first baffle 613 are staggered, thereby avoiding interference between the inner ring ignition needle 4 and the shielding portion 612, and reserving sufficient circulation area for air circulation. When the burner is suitable for a pot with a sharper pot bottom, the first baffle 613 can resist and prevent the pot bottom from pressing the inner ring flame toward the base assembly 2 and burning the base body 21 and other components.

[0051] According to an exemplary embodiment of the fire trough group 61121, as Figure 4As shown, the fire groove group 61121 includes a main fire groove 611211 and a flame stabilizing groove 611212 which are parallel and extend from the inner wall 6111 of the inner fire cover to the outer wall 6113 of the inner fire cover respectively, wherein the width of the main fire groove 611211 is greater than the width of the flame stabilizing groove 611212, thereby solving the flame separation problem of the inner ring flame.

[0052] In the embodiments of the present invention, the term "multiple" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0053] In the description of the embodiments of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0054] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fire distributor assembly, characterized in that: The ignition distributor assembly comprises: A fire distributor body (31), the fire distributor body (31) having an annular fire distributor gas mixing chamber (311) and comprising a fire distributor inner wall (313) arranged inside the fire distributor gas mixing chamber (311), the fire distributor inner wall (313) being provided with a plurality of first ignition holes (31311); and A flame stabilizing ring (32), the flame stabilizing ring (32) being connected to the inner wall (313) of the igniter and having an overlapping portion with the inner wall (313) of the igniter, and the flame stabilizing ring (32) being provided with a second ignition hole (321) corresponding to the overlapping portion and being in one-to-one communication with the first ignition hole (31311).

2. The ignition source assembly according to claim 1, characterized in that: The inner wall (313) of the ignition divider includes an ignition hole portion (3131) extending at least a portion thereof in the circumferential direction, and the plurality of first ignition holes (31311) are arranged at equal intervals in the ignition hole portion (3131) in the circumferential direction of the inner wall (313) of the ignition divider.

3. The ignition divider assembly according to claim 2, characterized in that: The flame stabilizing ring (32) comprises a flame stabilizing ring body (322), at least a portion of the outer peripheral wall of the flame stabilizing ring body (322) is in contact with the ignition hole portion (3131), and the plurality of second ignition holes (321) are arranged on the portion of the outer peripheral wall and are connected one by one with the plurality of first ignition holes (31311).

4. The ignition divider assembly according to claim 3, characterized in that: The flame stabilizing ring (32) further comprises a flame stabilizing ring connecting portion (323) connected to the top of the flame stabilizing ring body (322), and the flame stabilizing ring connecting portion (323) extends radially outwardly along the flame stabilizing ring (32) to abut against the top of the inner wall (313) of the ignition divider.

5. The spark distributor assembly according to claim 4, characterized in that: The top of the flame stabilizing ring connecting portion (323) has a first inclined surface (3231) and a second inclined surface (3232), wherein the first inclined surface (3231) is configured to be flush with the inner circumferential surface of the outer fire cover, and the second inclined surface (3232) matches the inner end bottom surface of the outer fire cover.

6. The ignition divider assembly according to any one of claims 3 to 5, characterized in that: The igniter body (31) further comprises an ignition extension portion (315) integrally formed with the ignition hole portion (3131), wherein the ignition extension portion (315) extends radially of the igniter body (31) into the igniter gas mixing chamber (311), and the ignition extension portion (315) is provided with a third ignition hole (3151) penetrating the first ignition hole (31311).

7. The spark distributor assembly according to claim 6, characterized in that: The flame-stabilizing ring body (322) and the inner wall (313) of the ignition divider are fixed by riveting, and the first ignition hole (31311), the second ignition hole (321) and the third ignition hole (3151) are integrally formed in the ignition hole portion (3131), the flame-stabilizing ring body (322) and the ignition extension portion (315) by riveting and then drilling.

8. The spark distributor assembly according to claim 7, characterized in that: The third ignition hole (3151), the first ignition hole (31311), and the second ignition hole (321) are connected in sequence and extend obliquely upward along the gas flow direction.

9. A burner, characterized in that: include: The ignition divider assembly according to any one of claims 1 to 8, wherein the ignition divider bottom wall (312) of the ignition divider body is formed with a first ignition divider inlet (3121) and a second ignition divider inlet (3122); A base assembly, the base assembly comprising a base body having a first base outlet and a second base outlet, the first base outlet being connected to the first igniter inlet (3121), the second base outlet being connected to the second igniter inlet (3122), and the base body also extending outwardly to be provided with at least one air inlet pipe; as well as The ejector tube assembly comprises at least one ejector tube body corresponding one-to-one to the air inlet pipe.

10. The burner according to claim 9, characterized in that The burner further comprises an outer ring ignition needle (5), the needle tip of the outer ring ignition needle (5) being arranged correspondingly at the second ignition hole (321).

Images