Combustor and stove

Abstract

The utility model relates to the technical field of household appliances, in particular to a burner and a stove. The combustor comprises a furnace end, an outer fire cover and a flow guide mechanism, the outer fire cover comprises a fire distributor outer ring, the outer fire cover and the fire distributor outer ring are buckled to form a gas mixing chamber, the gas mixing chamber comprises a gas mixing cavity with a gas outlet, the flow guide mechanism is located below the outer fire cover, and the flow guide mechanism comprises a flow guide plate and at least two flow guide pieces arranged on the flow guide plate. The at least two flow guide pieces are arranged in the circumferential direction of the outer fire cover at intervals, the top ends of the flow guide pieces abut against the outer fire cover, the flow guide plate, the outer fire cover and the at least two flow guide pieces jointly form a flow guide channel, one end of the flow guide channel communicates with the interior of the gas mixing cavity, and the other end of the flow guide channel communicates with the gas outlet. The flow guide channel can achieve a good guiding effect on mixed gas of fuel gas and air, and the phenomenon of flame separation at the gas outlet is avoided. According to the stove, the burner is applied, so that a good cooking effect of the stove on food materials can be ensured all the time.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a burner and a stove. Background Art

[0002] The burner includes a burner head, which includes an outer ring of an ignition divider and an outer ejector tube. The outer ring of the ignition divider has a gas mixing chamber. Since the flow rate of the mixed gas in the gas mixing chamber of the existing burner is relatively large, the mixed gas at the gas outlet is uneven, which is not conducive to the flame transmission at the gas outlet, resulting in poor stability of the flame combustion at the gas outlet and easy flame separation at the gas outlet.

[0003] Therefore, it is urgent to design a new burner and stove to improve the problem that flame separation and uneven flame easily occur at the air outlet. Utility Model Content

[0004] One purpose of the present invention is to provide a burner that avoids the flame separation phenomenon at the air outlet, ensures uniform flame at the air outlet, and ensures that the burner has a better cooking effect on food.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A burner comprising:

[0007] Burner head, including the outer ring of the distributor;

[0008] an outer fire cover, engaged with the outer ring of the fire distributor to form an air mixing chamber, wherein the air mixing chamber includes an air mixing cavity having an air outlet; and

[0009] The guide mechanism is located below the outer fire cover, and the guide mechanism includes a guide plate and at least two guide members arranged thereon, at least two of the guide members are arranged at intervals along the circumference of the outer fire cover, and the top of the guide member abuts against the outer fire cover, the guide plate, the outer fire cover and at least two of the guide members together form a guide channel, one end of the guide channel is connected to the interior of the mixing chamber, and the other end of the guide channel is connected to the air outlet.

[0010] As an optional solution, the guide member is columnar; or

[0011] The flow guide is protruded upward from the flow guide plate and extends radially along the outer fire cover.

[0012] As an optional solution, the cross-sectional area of ​​the flow guide member gradually decreases from top to bottom.

[0013] As an optional solution, the outer fire cover and the guide plate are spaced apart along a preset direction, and the dimension of the guide channel along the preset direction is a first dimension L1;

[0014] Wherein, the first dimension L1 is greater than 0 mm and less than or equal to 3 mm; and / or

[0015] The width of the guide channel is a second dimension L2, wherein L2 / L1 is greater than or equal to 3 and less than or equal to 10.

[0016] As an optional solution, one of the guide mechanism and the burner head includes a first positioning portion, and the other one also includes a second positioning portion, and the first positioning portion and the second positioning portion are detachably connected.

[0017] As an optional solution, the first positioning portion and the second positioning portion are connected by plug-in fit, magnetic connection fit, snap fit or a connector.

[0018] As an optional solution, the flow guiding mechanism further includes:

[0019] The reinforcement member, the first positioning portion, the reinforcement member and the guide plate are connected in sequence.

[0020] As an optional solution, the air outlet includes a fire transmission hole and a fire outlet hole provided on the outer fire cover, and the fire transmission hole and the fire outlet hole are spaced apart from each other along the radial direction of the outer fire cover from the inside to the outside.

[0021] As an optional solution, the number of the fire transfer holes is at least two, and the at least two fire transfer holes are spaced apart along the radial direction of the outer fire cover; and / or

[0022] The air outlet also includes a fire transfer hole and a flame stabilizing hole arranged on the outer fire cover. The fire transfer hole and the flame stabilizing hole are arranged on both sides of the fire transfer hole along the circumference of the outer fire cover. The first cross-sectional area S1 of the fire transfer hole is greater than the second cross-sectional area S2 of the fire transfer hole and the flame stabilizing hole.

[0023] Another object of the present invention is to provide a stove that ensures that the burner has a better cooking effect on food.

[0024] To achieve this purpose, the present invention adopts the following technical solutions:

[0025] A stove comprises the burner as described above.

[0026] Beneficial effects of the utility model:

[0027] The burner provided by the utility model includes a burner head, an outer fire cover and a guide mechanism, the outer fire cover includes an outer ring of the fire divider, the outer fire cover and the outer ring of the fire divider are buckled to form an air mixing chamber, the air mixing chamber includes an air mixing cavity with an air outlet, the guide mechanism is located below the outer fire cover, the guide mechanism includes a guide plate and at least two guide members arranged thereon, the at least two guide members are arranged at intervals along the circumference of the outer fire cover, the top of the guide member abuts against the outer fire cover, the guide plate, the outer fire cover and the at least two guide members jointly form a guide channel, one end of the guide channel is connected to the interior of the air mixing cavity, and the other end of the guide channel is connected to the air outlet, the guide channel can achieve a better guiding effect on the mixed gas of gas and air, ensure better transmission of the flame, and ensure that the flame at the air outlet is uniform and can burn stably, avoiding the flame separation phenomenon at the air outlet.

[0028] The stove provided by the utility model can ensure that the stove always has a good cooking effect on food by applying the above burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of a cooker provided in Example 1 of the present utility model;

[0030] Figure 2 This is a partial structural diagram of a stove provided in Example 1 of the present utility model;

[0031] Figure 3 This is an exploded view of a burner provided in Example 1 of the utility model embodiment;

[0032] Figure 4 This is a partial cross-sectional view of the burner provided in Example 1 of the present utility model;

[0033] Figure 5 This is a structural diagram of the flow guide mechanism provided in Example 1 of the present utility model;

[0034] Figure 6 This is a schematic diagram of the partial structure of the burner provided in the first embodiment of the present utility model;

[0035] Figure 7 This is a partial cross-sectional view of a burner provided in Example 2 of the present utility model;

[0036] Figure 8 It is a structural schematic diagram of the diversion mechanism provided in the second embodiment of the present utility model.

[0037] In the picture:

[0038] 10. Burner; 20. Knob; 30. Panel; 40. Gas valve; 60. Gas distribution pipe; 80. Chassis; 81. Storage space; 90. Pot rack;

[0039] 11. Burner head; 111. Inner ring of ignition distributor; 112. Outer ring of ignition distributor; 1121. Inner sidewall; 11211. Second positioning portion; 1122. Outer sidewall; 11221. First groove; 112211. First side surface; 11222. Second groove; 112221. Second side surface; 113. Outer ejector tube; 114. Inner ejector tube;

[0040] 12. External fire cover; 121. Top plate; 1211. First inclined surface; 12111. Fire outlet; 12112. Fire outlet and flame stabilizing hole; 1212. Second inclined surface; 12121. First fire transmission hole; 12122. Fire transmission and flame stabilizing hole; 1213. Connecting surface; 12131. Second fire transmission hole; 122. Inner retaining wall; 123. Outer retaining wall.

[0041] 13. Inner fire cover;

[0042] 15. Ignition assembly; 151. Electrode needle; 152. Thermocouple;

[0043] 17. Flow guide mechanism; 171. First positioning portion; 172. Flow guide plate; 173. Reinforcement member; 174. Flow guide member; 175. Flow guide channel. DETAILED DESCRIPTION

[0044] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention, and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of it.

[0045] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0047] In the description of the embodiments of the present disclosure, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present disclosure. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0048] Example 1

[0049] like Figure 1 and Figure 2 As shown, the embodiment of the present disclosure provides a stove, which includes a panel 30 and a bottom plate 80. The bottom plate 80 has a receiving space 81. The panel 30 is arranged on the bottom plate 80 and is located at the opening of the receiving space 81. Figure 1 and Figure 2 As shown, the cooker further includes a burner 10 and a pot rack 90 , both of which are located on the panel 30 . The burner 10 is used to heat the pot, and the pot rack 90 is located on the periphery of the burner 10 and is used to firmly support the pot.

[0050] In addition, if Figure 2 As shown, the stove also includes a gas valve 40, a main gas pipe and a branch gas pipe 60. The branch gas pipe 60 and the main gas pipe are both connected to the gas valve 40. The branch gas pipe 60 and the main gas pipe are connected to the corresponding air ducts on the burner 10. By adjusting the gas valve 40 to adjust the air intake of the branch gas pipe 60 and the main gas pipe, the burner 10 can cook the pot in different modes, thereby achieving a better cooking method for different types of food.

[0051] Specifically, if Figure 2 As shown, the gas valve 40 includes a valve shaft, at least part of which extends out of the accommodating space 81. The stove also includes a knob 20, which is connected to the valve shaft. The gas valve 40 can be adjusted by operating the knob 20.

[0052] In addition, if Figure 2 As shown, the main body of the gas valve 40, the main gas pipe and the branch gas pipe 60 are arranged in the accommodating space 81, which can shield the main body of the gas valve 40, the main gas pipe and the branch gas pipe 60, making the overall shape of the stove more beautiful.

[0053] like Figure 3 and Figure 4 As shown, the burner 10 includes a burner head 11, an outer fire cover 12 and an inner fire cover 13. The burner head 11 includes an independent ignition divider outer ring 112 and an ignition divider inner ring 111. The ignition divider outer ring 112 is arranged on the outer periphery of the ignition divider inner ring 111 and is spaced apart from the ignition divider inner ring 111.

[0054] Among them, such as Figure 3 and Figure 4 As shown, the outer fire cover 12 is buckled on the outer ring 112 of the ignition distributor and forms a gas mixing chamber with the outer ring 112 of the ignition distributor. The gas mixing chamber includes a gas mixing cavity with a gas channel group; wherein, the inner fire cover 13 is buckled on the inner ring 111 of the ignition distributor and forms an inner ring gas outlet cavity with the inner ring 111 of the ignition distributor. The inner fire cover 13 is provided with an inner nozzle, and the inner nozzle and the inner ring gas outlet cavity are connected. Figure 3 and Figure 4 As shown, the burner head 11 further includes an outer ejector tube 113 and an inner ejector tube 114 . The outer ejector tube 113 is connected to the outer ring 112 of the ignition distributor, and the inner ejector tube 114 is connected to the inner ring 111 of the ignition distributor.

[0055] Specifically, if Figure 3 and Figure 4 As shown, the gas is sprayed into the outer ejector tube 113 through the outer ring nozzle, and the primary air is ejected through the primary air inlet on the outer ejector tube 113. The gas and air are mixed in the mixing chamber, and the mixed gas is then discharged from the gas channel group; the gas is sprayed into the inner ejector tube 114 through the inner ring nozzle, and the primary air is ejected through the primary air inlet on the inner ejector tube 114. The gas is mixed with the inner ring outlet cavity, and the mixed gas is then discharged from the inner nozzle.

[0056] like Figure 3 As shown, the burner 10 also includes an ignition assembly 15, which includes a thermocouple 152 and an electrode needle 151. The electrode needle 151 is used to ignite the mixed gas discharged from the inner nozzle, and the thermocouple 152 is used to detect the combustion temperature. When the combustion temperature exceeds a preset range, the thermocouple 152 transmits the real-time temperature to the controller, and the controller controls the gas valve 40 to adjust the gas output in real time to ensure the stability of the combustion temperature.

[0057] In an optional embodiment, if Figures 3 to 6As shown, the gas channel group includes a plurality of fire hole channel groups, each of which has a one-to-one corresponding air outlet arranged on the outer fire cover 12, and the plurality of fire hole channel groups are arranged at intervals along the circumference of the outer fire cover 12, wherein the fire hole channel group includes a plurality of fire holes 12111 (first type of air outlet) arranged on the outer fire cover 12 and a first groove 11221 arranged on the outer side wall 1122 of the outer ring 112 of the ignition divider, each fire hole 12111 corresponds to the first groove 11221 one-to-one and is arranged relative to each other, and at least two fire holes 12111 are arranged at intervals along the circumference of the outer fire cover 12, and the mixed gas of gas and air in the mixing chamber can be discharged from the fire holes 12111, and the mixed gas discharged from the fire holes 12111 is ignited and then burns.

[0058] In an optional embodiment, if Figures 3 to 6 As shown, the fire hole channel group also includes a fire hole flame stabilizing hole 12112 (a second air outlet) arranged on the outer fire cover 12 and a second groove 11222 arranged on the outer side wall 1122 of the outer ring 112 of the ignition distributor. Each fire hole flame stabilizing hole 12112 corresponds to the second groove 11222 one by one and is arranged relatively to each other. The third cross-sectional area S3 of the fire hole 12111 is greater than the fourth cross-sectional area S4 of the fire hole flame stabilizing hole 12112. The fire hole 12111 and the fire hole flame stabilizing hole 12112 are spaced circumferentially along the outer fire cover 12. The flame at the fire hole flame stabilizing hole 12112 can achieve a better flame stabilizing effect on the flame at the fire hole 12111, and can prevent the flame at the fire hole 12111 from having a flame separation problem, thereby ensuring the stable combustion effect of the burner 10.

[0059] In an optional embodiment, if Figure 3 As shown, at least two fire hole flame stabilizing holes 12112 arranged at intervals along the circumference of the outer fire cover 12 can be set between two adjacent fire holes 12111. The area of ​​at least two fire hole flame stabilizing holes 12112 forms a pot rack fire avoidance position. The pot rack 90 can be accommodated in the pot rack fire avoidance position, which can avoid the flame of the burner 10 from burning the pot rack, ensure that the flame at the fire hole 12111 can contact with sufficient oxygen, avoid the flame at the fire hole 12111 from causing carbon monoxide production due to incomplete combustion, and achieve a more complete combustion effect of the burner 10.

[0060] Since the flow rate of the mixed gas in the mixing chamber of the existing burner 10 is relatively high, the mixed gas at the outlet is uneven, which is not conducive to the flame transmission at the outlet, resulting in poor stability of the flame combustion at the outlet and easy occurrence of flame separation at the outlet.

[0061] To solve the above problem, in an optional embodiment, as Figures 3 to 5As shown, the burner 10 also includes a guide mechanism 17, which is located below the outer fire cover 12. The guide mechanism 17 includes a guide plate 172 and at least two guide members 174 arranged thereon, and the at least two guide members 174 are arranged at intervals along the circumference of the outer fire cover 12. The top of the guide member 174 abuts against the outer fire cover 12. The guide plate 172, the outer fire cover 12 and the at least two guide members 174 together form a guide channel 175. One end of the guide channel 175 is connected to the interior of the mixing chamber, and the other end of the guide channel 175 is connected to the air outlet. The guide channel 175 can achieve a better guiding effect on the mixed gas of gas and air, ensure better transmission of the flame, and ensure better uniformity and stable combustion of the flame at the air outlet, thereby avoiding the flame separation phenomenon at the air outlet.

[0062] In an optional embodiment, if Figures 3 to 5 As shown, the flow guide member 174 is columnar and has a simple structure, which facilitates the rapid processing and forming of the flow guide mechanism 17 .

[0063] In an optional embodiment, if Figure 5 As shown, the cross-sectional area of ​​the guide member 174 gradually decreases from top to bottom, which facilitates the rapid demoulding of the guide member 174 during the injection molding process and ensures a high processing yield of the guide member 174.

[0064] In an optional embodiment, one of the flow guide mechanism 17 and the burner head 11 includes a first positioning portion 171, and the other includes a second positioning portion 11211. The first positioning portion 171 and the second positioning portion 11211 are detachably connected, enabling rapid assembly and replacement of the flow guide mechanism 17 and the burner head 11. Specifically, the first positioning portion 171 and the second positioning portion 11211 can be detachably connected by at least one of plug-in connection, magnetic connection, snap-fit ​​connection, or connection with a connector.

[0065] In an optional embodiment, if Figure 4 As shown, the cooperation between the first positioning portion 171 and the second positioning portion 11211 can achieve a stable connection between the guide mechanism 17 and the burner head 11, which can prevent the top end of the guide member 174 from separating from the top plate 121 of the outer fire cover 12, thereby preventing the fire transfer effect of the burner 10 from deteriorating.

[0066] In an optional embodiment, if Figure 3 and Figure 4As shown, the outer ring 112 of the ignition divider includes an inner wall 1121 and an outer wall 1122 arranged at intervals along the radial direction of the outer ring 112 of the ignition divider (i.e., the radial direction of the guide mechanism 17), and the second positioning portion 11211 is a plug-in groove opened on the inner wall 1121, and the first positioning portion 171 can be plugged into the plug-in groove in the up and down directions, thereby realizing rapid disassembly and assembly of the guide mechanism 17 and the burner head 11, which is convenient for user operation.

[0067] In an optional embodiment, the flow guide mechanism 17 further includes a reinforcement member 173. The first positioning portion 171, the reinforcement member 173, and the flow guide plate 172 are connected in sequence. The provision of the reinforcement member 173 can effectively improve the strength and hardness of the flow guide mechanism 17, prevent the flow guide mechanism 17 from deforming during use, further prevent the top end of the flow guide member 174 from separating from the top plate 121 of the outer fire cover 12, and prevent the flame transmission effect of the burner 10 from deteriorating. Specifically, the first positioning portion 171, the reinforcement member 173, and the flow guide plate 172 can be formed by a sheet metal bending process, wherein the reinforcement member 173 can be formed by bending the sheet metal multiple times. The reinforcement member 173 undergoes plastic deformation due to the multiple bending of the sheet metal, thereby achieving a better work hardening effect.

[0068] In an optional embodiment, if Figure 3 、 Figure 4 and Figure 5 As shown, the outer fire cover 12 includes a top plate 121, an inner retaining wall 122, and an outer retaining wall 123. The upper ends of the inner retaining wall 122 and the upper ends of the outer retaining wall 123 are respectively fixedly connected to the top plate 121. The inner retaining wall 122 and the outer retaining wall 123 are arranged at intervals along the radial direction of the outer fire cover 12. The outer fire cover 12 is covered at the upper end of the outer ring 112 of the ignition divider, which can achieve a limiting effect on the outer fire cover 12 and the outer ring 112 of the ignition divider in the vertical direction. In addition, the inner retaining wall 122 is located on the radial inner side of the outer ring 112 of the ignition divider, and the outer retaining wall 123 is located on the radial outer side of the outer ring 112 of the ignition divider, so as to achieve a limiting effect on the outer fire cover 12 and the outer ring 112 of the ignition divider in the radial direction of the outer fire cover 12.

[0069] In an optional embodiment, if Figure 3 and Figure 4 As shown, the gas channel group also includes a fire transfer hole channel group, which is arranged on the outer fire cover 12 and is connected to the gas mixing chamber. The inner fire cover 13, the fire transfer hole channel group and the fire outlet hole channel group are arranged at radial intervals from the inside to the outside along the outer fire cover 12. Through the setting of the fire transfer hole channel group, the flame at the inner fire cover 13 can be transferred to the outer fire cover 12, thereby realizing the rapid ignition of the flame at the outer fire cover 12.

[0070] In an optional embodiment, if Figure 3As shown, the fire transmission hole channel group includes a first fire transmission hole 12121 (a third type of air outlet) and a second fire transmission hole 12131 (a fourth type of air outlet). The first fire transmission hole 12121 and the second fire transmission hole 12131 are arranged radially and spaced apart from each other along the outer fire cover 12. This prevents the outer fire cover 12 from having oversized grooves, thereby ensuring the outer fire cover 12 maintains high strength and hardness. Of course, in other optional embodiments, the number of fire transmission holes can also be three, four, or more. The above-mentioned effects can be achieved by providing at least two fire transmission holes.

[0071] In an optional embodiment, the fire transfer hole channel group may also be provided with only one fire transfer hole. The outer fire cover 12 of this structure has a simple structure and is easy to process and manufacture.

[0072] In an optional embodiment, if Figure 3 As shown, the first fire transmission hole 12121 and the second fire transmission hole 12131 are both waist-shaped holes, which extend radially along the outer fire cover 12. The setting of the waist-shaped holes can achieve better radial transmission of flames on the one hand, and can also ensure that the first fire transmission hole 12121 and the second fire transmission hole 12131 have sufficient fire output area.

[0073] In an optional embodiment, the first fire transmission hole 12121 and the second fire transmission hole 12131 can also be circular holes, triangular holes, elliptical holes, polygonal holes, etc., and holes of all shapes are within the protection scope of this optional embodiment.

[0074] In an optional embodiment, if Figure 3 and Figure 4 As shown, the fire transfer hole group also includes a fire transfer hole flame stabilizing hole 12122 (the fifth air outlet) arranged on the outer fire cover 12. The fire transfer hole flame stabilizing hole 12122 is communicated with the gas mixing chamber. The first fire transfer hole 12121 is provided with fire transfer hole flame stabilizing holes 12122 on both sides of the circumference of the outer fire cover 12. The first cross-sectional area S1 of the first fire transfer hole 12121 is greater than the second cross-sectional area S2 of the fire transfer hole flame stabilizing hole 12122. The flame at the fire transfer hole flame stabilizing hole 12122 can achieve a better flame stabilizing effect on the flame at the first fire transfer hole 12121, and can prevent the flame at the first fire transfer hole 12121 from having a flame separation problem, thereby ensuring the stable combustion effect of the burner 10.

[0075] In an optional embodiment, if Figure 4As shown, the top plate 121 includes a second inclined surface 1212, a connecting surface 1213 and a first inclined surface 1211 along the radial direction of the outer fire cover 12 from the inside to the outside, a fire hole 12111 and a fire hole flame stabilizing hole 12112 are arranged on the first inclined surface 1211, and the distance between the first inclined surface 1211 and the center line of the outer fire cover 12 is a third dimension, wherein the third dimension gradually decreases from top to bottom. This structural setting can extend the residence time of high-temperature flue gas at the bottom of the pot, enhance the heat exchange between high-temperature flue gas and the heating surface of the bottom of the pot, and improve thermal efficiency. Specifically, as Figure 4 As shown, the first inclined surface 1211 forms a first angle α with the horizontal plane, wherein α is greater than or equal to 30° and less than or equal to 90°. For example, α can be 30°, 40°, 50°, 60°, 70°, 80°, 90°, etc. All α values ​​within the range of greater than or equal to 30° and less than or equal to 90° are within the protection scope of this optional embodiment.

[0076] In an optional embodiment, if Figure 6 As shown, first groove 11221 includes two spaced first side surfaces 112211, with the distance between the two first side surfaces 112211 gradually decreasing from top to bottom. This ensures proper demolding of the mold during the processing of the ignition distributor outer ring 112, eliminating the need for additional processing. Furthermore, first groove 11221 is characterized by being larger at the top and smaller at the bottom. This further reduces the pressure of the mixed gas as it passes through first groove 11221, resulting in more uniform mixing of the mixed gas, reduced flow rate of the mixed gas, and improved flame combustion stability of burner 10.

[0077] Specifically, if Figure 6 As shown, a third angle γ is set between the two first side surfaces 112211, wherein β is greater than 0° and less than or equal to 5°, wherein β can be 1°, 2°, 3°, 4°, 5°, etc., and all values ​​within the range of greater than 0° and less than or equal to 5° are within the protection scope of this optional embodiment.

[0078] In an optional embodiment, if Figure 6 As shown, second groove 11222 includes two spaced-apart second side surfaces 112221. The distance between the two second side surfaces 112221 gradually decreases from top to bottom, ensuring proper mold release during the processing of igniter outer ring 112 without requiring additional processing. Furthermore, second groove 11222 is characterized by being larger at the top and smaller at the bottom. This further reduces the pressure of the mixed gas as it passes through second groove 11222, resulting in more uniform mixing of the mixed gas, reduced flow rate of the mixed gas, and improved flame combustion stability of burner 10.

[0079] Specifically, if Figure 6As shown, the two second side surfaces 112221 are set at a third angle γ, wherein γ is greater than 0° and less than or equal to 5°, wherein γ can be 1°, 2°, 3°, 4°, 5°, etc., and all values ​​within the range of greater than 0° and less than or equal to 5° are within the protection scope of this optional embodiment.

[0080] In an optional embodiment, the burner head 11 is made of aluminum, and the first groove 11221 and the second groove 11222 are made by an aluminum die-casting integral molding process. Compared with the burner head 11 made of copper in the prior art, the burner head 11 of this optional embodiment has a lower cost. The burner head 11 made of stainless steel in the prior art usually adopts a stretching process to form the fire outlet channel on the burner head 11. Each fire outlet channel needs to be formed by a single independent stretching, resulting in the burner head 11 made of stainless steel having many processing steps, being time-consuming and costly. Compared with the burner head 11 made of stainless steel, the burner head 11 of this optional embodiment does not need to process each fire outlet channel separately. All the first grooves 11221 and the second grooves 11222 can be formed and processed at one time, and the processing steps are simple, time-saving and cost-effective.

[0081] Example 2

[0082] like Figure 7 and Figure 8 As shown, the embodiment of the present disclosure provides a guide mechanism 17, the structure of the guide mechanism 17 is basically the same as the structure of the guide mechanism 17 in Example 1, and the main difference between the two is that the guide member 174 is provided by the guide plate 172 to protrude upward, and the guide member 174 extends along the radial direction of the outer fire cover 12. The length of the guide channel 175 is longer than that of Example 1. The guide channel 175 can achieve better guidance and rectification effects for the mixed gas of gas and air, further ensure better flame transmission effect, further ensure better uniformity and stable combustion of the flame at the air outlet, and further prevent the occurrence of flame separation phenomenon at the air outlet.

[0083] In an optional embodiment, if Figure 7 As shown, the top plate 121 of the outer fire cover 12 and the guide plate 172 are arranged at intervals along a preset direction, and the dimension of the guide channel 175 along the preset direction is a first dimension L1, wherein the first dimension L1 is greater than 0 mm and less than or equal to 3 mm. The setting of the above-mentioned first dimension L1 can achieve a better deceleration effect of the guide channel 175 on the mixed gas. Exemplarily, the first dimension L1 can be 0.5 mm, 1 mm, 1.2 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, 2.5 mm, 2.8 mm, 3 mm, etc. The above only lists a few exemplary point values. All point values ​​or numerical ranges within the range of greater than 0 mm and less than or equal to 3 mm are within the protection scope of this optional embodiment.

[0084] In an optional embodiment, if Figure 7 and Figure 8 As shown, the width of the guide channel 175 is a second dimension L2, where L2 / L1 is greater than or equal to 3 and less than or equal to 10. The aforementioned setting of L2 / L1 can achieve a better deceleration effect on the mixed gas by the guide channel 175. Exemplarily, L2 / L1 can be 3, 4, 5, 6, 7, 8, 9, 10, etc. The above are only a few exemplary values. All values ​​or numerical ranges within the range of greater than or equal to 3 and less than or equal to 10 are within the scope of this optional embodiment.

[0085] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A burner, characterized in that: include: A burner head (11), including a flame distributor outer ring (112); An outer fire cover (12) is engaged with the outer ring (112) of the fire distributor to form an air mixing chamber, wherein the air mixing chamber includes an air mixing cavity having an air outlet; and A flow guide mechanism (17) is located below the outer fire cover (12), and the flow guide mechanism (17) includes a flow guide plate (172) and at least two flow guide members (174) arranged thereon, at least two of the flow guide members (174) are arranged at intervals along the circumference of the outer fire cover (12), and the top of the flow guide member (174) abuts against the outer fire cover (12), the flow guide plate (172), the outer fire cover (12) and the at least two flow guide members (174) together form a flow guide channel (175), one end of the flow guide channel (175) is connected to the interior of the gas mixing chamber, and the other end of the flow guide channel (175) is connected to the gas outlet.

2. The burner according to claim 1, characterized in that The guide member (174) is columnar; or The flow guide (174) is protruding upward from the flow guide plate (172), and the flow guide (174) extends in the radial direction of the outer fire cover (12).

3. The burner according to claim 2, characterized in that The cross-sectional area of ​​the flow guide (174) gradually decreases from top to bottom.

4. The burner according to claim 1, characterized in that The outer fire cover (12) and the guide plate (172) are arranged at intervals along a preset direction, and the dimension of the guide channel (175) along the preset direction is a first dimension L1; Wherein, the first dimension L1 is greater than 0 mm and less than or equal to 3 mm; and / or The width of the guide channel (175) is a second dimension L2, wherein L2 / L1 is greater than or equal to 3 and less than or equal to 10.

5. The burner according to any one of claims 1 to 4, characterized in that: One of the guide mechanism (17) and the burner head (11) includes a first positioning portion (171), and the other one also includes a second positioning portion (11211), and the first positioning portion (171) and the second positioning portion (11211) are detachably connected.

6. The burner according to claim 5, characterized in that The first positioning portion (171) and the second positioning portion (11211) are connected by plug-in fitting, magnetic connection fitting, snap-fit ​​fitting or a connector.

7. The burner according to claim 6, characterized in that The flow guiding mechanism (17) further comprises: The reinforcement member (173), the first positioning portion (171), the reinforcement member (173) and the guide plate (172) are connected in sequence.

8. The burner according to any one of claims 1 to 4, characterized in that: The air outlet comprises a fire transmission hole and a fire outlet hole (12111) provided on the outer fire cover (12), wherein the fire transmission hole and the fire outlet hole (12111) are arranged at intervals along the radial direction of the outer fire cover (12) from the inside to the outside.

9. The burner according to claim 8, characterized in that The number of the fire transmission holes is at least two, and the at least two fire transmission holes are spaced apart along the radial direction of the outer fire cover (12); and / or The air outlet also includes a fire transfer hole and a flame stabilizing hole (12122) arranged on the outer fire cover (12), and the fire transfer hole and the flame stabilizing hole (12122) are arranged on both sides of the fire transfer hole along the circumference of the outer fire cover (12), and the first cross-sectional area S1 of the fire transfer hole is greater than the second cross-sectional area S2 of the fire transfer hole and the flame stabilizing hole (12122).

10. A stove, characterized in that: The burner comprises the burner according to any one of claims 1 to 9.

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