Combustor and control method thereof

Abstract

The invention belongs to the technical field of cooking utensils, and particularly discloses a combustor and a control method thereof.The combustor comprises a furnace end, a fire cover structure, a first air door adjusting structure and an air blower, and the furnace end is provided with a first secondary air channel; the fire cover structure is arranged on the furnace end, a first fire hole and a first secondary air outlet hole are formed in the fire cover structure, the axis of the first fire hole intersects with the axis of the first secondary air outlet hole, and a secondary air cavity is defined between the fire cover structure and the furnace end; an air outlet of the first secondary air channel and the first secondary air outlet hole are both communicated with the secondary air cavity; the air blower is communicated with an air inlet of the first secondary air channel; the first air door adjusting structure is arranged at an air inlet of the first secondary air channel. According to the combustor provided by the invention, the secondary air inlet area of the air inlet of the first secondary air channel is adjusted by the first air door adjusting structure, so that the risk of insufficient combustion of fuel gas is favorably reduced, and the combustion energy efficiency of the fuel gas is favorably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cookers, in particular to a burner and a control method thereof. BACKGROUND

[0002] A cooker is a basic device for cooking food in a kitchen, which generates heat by burning gas to heat food. The burner is the core component of the cooker, which is responsible for mixing gas with air and igniting to generate heat.

[0003] Currently, in order to make the gas delivered to the burner fully burn, the burner usually needs to supplement secondary air to assist the combustion of the gas. In the related art, the amount of secondary air supplemented by the burner is not adjustable. For different pots, such as pots with different size specifications and different pot bottom shapes, the effect of the burner supplementing the same amount of secondary air to assist the combustion of the gas is different. For example, using a large size flat bottom pot may cause the gas to burn insufficiently; and using a small size round bottom pot may take away too much heat of the gas combustion, reducing the combustion efficiency of the gas. SUMMARY

[0004] One of the technical problems solved by the present application is to provide a burner that can effectively solve the problem of the amount of secondary air supplemented by the burner being not adjustable.

[0005] The second technical problem solved by the present application is to provide a control method that can effectively solve the problem of the amount of secondary air supplemented by the burner being not adjustable.

[0006] The above technical problems are solved by the following technical solutions:

[0007] A burner comprises:

[0008] A burner head is provided with a first secondary air channel;

[0009] A fire cap structure is provided on the burner head, the fire cap structure is provided with a first fire hole and a first secondary air outlet hole, the axis of the first fire hole intersects the axis of the first secondary air outlet hole, and a secondary air cavity is formed between the fire cap structure and the burner head, the outlet of the first secondary air channel and the first secondary air outlet hole are both in communication with the secondary air cavity;

[0010] An air blower is in communication with the air inlet of the first secondary air channel, and the air blower is used to deliver secondary air into the first secondary air channel;

[0011] A first air door adjusting structure is provided at the air inlet of the first secondary air channel, and the first air door adjusting structure is used to adjust the secondary air inlet area of the air inlet of the first secondary air channel.

[0012] The burner has the beneficial effects compared with the background art:

[0013] When the burner is in use, the gas can be combusted at the first fire hole, and the axis of the first fire hole intersects with the axis of the first secondary air outlet hole, the first secondary air outlet hole has the function of guiding the secondary air, under the action of the air blower conveying the secondary air into the first secondary air channel, the secondary air successively flows through the first secondary air channel and the secondary air cavity and flows out of the first secondary air outlet hole, and the secondary air acts on the flame (for example, the root of the flame) at the first fire hole, which is beneficial to the combustion of the gas at the first fire hole. At the same time, the first secondary air channel inlet is adjusted by the first damper adjusting structure to adjust the secondary air inlet area, and then the secondary air flow through the first secondary air outlet hole is adjusted, so that the first secondary air outlet hole provides appropriate flow of secondary air for different pots, which is beneficial to reduce the risk of insufficient gas combustion, and is beneficial to reduce the heat of the gas combustion taken away by the secondary air to improve the combustion efficiency of the gas.

[0014] In one of the embodiments, the first damper adjusting structure comprises:

[0015] The first installation table is arranged opposite to the inlet of the first secondary air channel;

[0016] The first damper piece is arranged on the first installation table, and a first air inlet gap is formed between the first damper piece and the end of the inlet of the first secondary air channel, and the first damper piece can move along the axial direction of the first installation table to adjust the first air inlet gap.

[0017] In one of the embodiments, the first damper adjusting structure further comprises a first driving piece, the first driving piece is connected with the first damper piece, and the first driving piece is used to drive the first damper piece to move along the axial direction of the first installation table.

[0018] In one of the embodiments, the first driving piece comprises a motor, and the output shaft of the first driving piece is connected with a driving gear;

[0019] The first damper piece comprises a sleeve part and a gear plate part, the sleeve part is sleeved on the first installation table and is threadedly connected with the first installation table, and the gear plate part is engaged with the driving gear; along the axial direction of the first installation table, the first air inlet gap is formed between the gear plate part and the end of the inlet of the first secondary air channel.

[0020] In one of the embodiments, along the center line direction of the first secondary air outlet hole, the height distance H between the outlet center of the first fire hole and the outlet center of the first secondary air outlet hole is ≤15mm.

[0021] In one of the embodiments, the fire cap structure is provided with a second fire hole, the first fire hole is arranged outside the second fire hole, the first mixed gas cavity and the second mixed gas cavity are formed between the fire cap structure and the burner head, the burner head is provided with a first injection channel and a second injection channel, the gas outlet of the first injection channel and the first fire hole are both connected with the first mixed gas cavity, and the gas outlet of the second injection channel and the second fire hole are both connected with the second mixed gas cavity.

[0022] In one of the embodiments, the burner further comprises:

[0023] A second air door adjusting structure is arranged at the air inlet of the first injection channel, and the second air door adjusting structure is used to adjust the primary air inlet area of the air inlet of the first injection channel.

[0024] A third air door adjusting structure is arranged at the air inlet of the second injection channel, and the third air door adjusting structure is used to adjust the primary air inlet area of the air inlet of the second injection channel.

[0025] In one of the embodiments, the second air door adjusting structure comprises:

[0026] A second mounting table is arranged opposite to the air inlet of the first injection channel.

[0027] A second air door piece is arranged on the second mounting table, a second air inlet gap is formed between the second air door piece and the end of the air inlet of the first injection channel, and the second air door piece can move along the axial direction of the second mounting table to adjust the second air inlet gap.

[0028] The third air door adjusting structure comprises:

[0029] A third mounting table is arranged opposite to the air inlet of the second injection channel.

[0030] A third air door piece is arranged on the third mounting table, a third air inlet gap is formed between the third air door piece and the end of the air inlet of the second injection channel, and the third air door piece can move along the axial direction of the third mounting table to adjust the third air inlet gap.

[0031] In one of the embodiments, the burner further comprises a second driving piece, the second air door piece and the third air door piece are both connected with the second driving piece, the second driving piece is used to drive the second air door piece to move along the axial direction of the second mounting table, and is used to drive the third air door piece to move along the axial direction of the third mounting table.

[0032] Alternatively, the second damper adjusting structure further comprises a third driving member connected with the second damper member, the third driving member being configured to drive the second damper member to move along the axial direction of the second mounting base, and the second damper adjusting structure further comprises a fourth driving member connected with the third damper member, the fourth driving member being configured to drive the third damper member to move along the axial direction of the third mounting base.

[0033] In one of the embodiments, the furnace head is provided with a second secondary air passage, the fire cover structure is provided with a second secondary air outlet hole, the second secondary air outlet hole is in communication with the second secondary air passage, and the axis of the second fire hole is arranged at an angle with the axis of the second secondary air outlet hole.

[0034] The burner further comprises a mounting box, the furnace head is arranged in the mounting box, the fire cover structure extends out of the mounting box and forms a seal with the mounting box, a flow space is formed between the outer periphery of the furnace head and the inner wall of the mounting box, and the air inlet of the first secondary air passage and the air inlet of the second secondary air passage are both in communication with the flow space.

[0035] The air blower is arranged outside the mounting box and in communication with the flow space.

[0036] In one of the embodiments, the mounting box comprises:

[0037] a box body having an opening, the box body being provided with a first edge extending inwardly at the opening, the furnace head being arranged in the box body, the outer periphery of the fire cover structure being provided with a second edge, and the first edge and the second edge being flush.

[0038] a box cover sealing the opening, the box cover being provided with a mounting opening, the fire cover structure extending out of the mounting opening, and the side of the box cover facing the box body being lapped on the first edge.

[0039] In one of the embodiments, the mounting box comprises two opposite box side walls, the air inlet of the first secondary air passage, the air inlet of the first injection passage and the air inlet of the second injection passage are arranged close to one of the two box side walls, the other of the two box side walls is provided with a ventilation hole, and the air blower is arranged in communication with the ventilation hole.

[0040] In one of the embodiments, the fire cover structure comprises:

[0041] a fire cover seat arranged on the furnace head, the fire cover seat being provided with the first secondary air outlet hole and the second secondary air outlet hole, and the fire cover seat and the furnace head surrounding to form the secondary air cavity, the first mixed gas cavity and the second mixed gas cavity.

[0042] An outer ring fire cover is arranged on the fire cover seat, and the first fire hole is arranged on the outer ring fire cover.

[0043] A center fire cover is arranged on the fire cover seat, and the second fire hole is arranged on the center fire cover.

[0044] In one embodiment, the fire cover seat comprises:

[0045] An outer ring seat body is arranged between the furnace end to form the secondary air cavity, the first secondary air outlet hole is arranged on the outer ring seat body, and the outer ring fire cover is arranged on the outer ring seat body.

[0046] A center seat body, and the center fire cover is arranged on the center seat body.

[0047] A ring plate is arranged between the outer ring seat body and the center seat body, and the second secondary air outlet hole is arranged on the ring plate.

[0048] A control method applied to the burner described in any one of the above embodiments, comprising:

[0049] Obtaining size information of a pot;

[0050] Starting the air blower, and controlling the first air door adjusting structure to adjust the secondary air inlet area of the air inlet of the first secondary air passage according to the size information of the pot.

[0051] Compared with the background art, the control method has the beneficial effects that:

[0052] Starting the air blower, and controlling the first air door adjusting structure to adjust the secondary air inlet area of the air inlet of the first secondary air passage according to the size information of the pot, thereby achieving the purpose of providing appropriate flow of secondary air for different pots, reducing the risk of insufficient gas combustion, and reducing the combustion heat of the gas taken away by the secondary air to improve the combustion efficiency of the gas.

[0053] In one embodiment, before obtaining the size information of the pot, the method further comprises: collecting secondary air inlet area information of the air inlet of the first secondary air passage corresponding to the size information of different pots and storing the information in the controller;

[0054] The obtaining of the size information of the pot comprises: inputting the size information of the pot, and the controller obtains the input size information of the pot.

[0055] In one of the embodiments, the first damper adjusting structure comprises a first mounting base, a first damper member and a first driving member, the first mounting base is arranged opposite to the air inlet of the first secondary air passage; the first damper member is arranged on the first mounting base, a first air inlet gap is formed between the first damper member and the end of the air inlet of the first secondary air passage, and the first damper member can move along the axial direction of the first mounting base to adjust the first air inlet gap; the first driving member is connected with the first damper member, and the first driving member is used to drive the first damper member to move along the axial direction of the first mounting base;

[0056] The control method comprises the following steps:

[0057] controlling the first driving member to drive the first damper member to move along the axial direction of the first mounting base to adjust the first air inlet gap. BRIEF DESCRIPTION OF DRAWINGS

[0058] Figure 1 a sectional view of the burner provided by the present application;

[0059] Figure 2 a structural schematic view of the burner provided by the present application without the mounting box;

[0060] Figure 3 an enlarged view of the local structure of the burner provided by the present application at the mounting bracket;

[0061] Figure 4 a structural schematic view of the burner provided by the present application without the box cover;

[0062] Figure 5 a structural schematic view of the burner provided by the present application from one perspective;

[0063] Figure 6 a structural schematic view of the burner provided by the present application from another perspective;

[0064] Figure 7 a flow chart of the control method provided by the present application.

[0065] REFERENCE NUMERALS:

[0066] 100, furnace head; 101, furnace head base; 102, secondary air inlet pipe; 103, first mixed gas injection pipe; 104, second mixed gas injection pipe; 110, first secondary air passage; 120, mixed gas passage; 130, second secondary air passage; 140, first injection passage; 150, second injection passage;

[0067] 200, fire cover structure; 201, fire cover seat; 2011, outer ring seat body; 2012, center seat body; 2013, annular plate; 2014, second edge; 202, outer ring fire cover; 203, center fire cover; 210, first fire hole; 220, first secondary air outlet hole; 230, secondary air cavity; 240, first mixed gas cavity; 250, second fire hole; 260, second secondary air outlet hole; 270, second mixed gas cavity;

[0068] 300, first damper adjusting structure; 310, first damper piece; 311, sleeve part; 312, gear plate part; 320, first driving piece; 330, driving gear;

[0069] 400, mounting bracket; 410, first mounting table; 420, second mounting table; 430, third mounting table;

[0070] 510, first nozzle; 520, second nozzle;

[0071] 610, second damper piece; 620, second driving piece; 630, third damper piece;

[0072] 700, mounting box; 710, box body; 711, first edge; 720, box cover;

[0073] 800, air blower. DETAILED DESCRIPTION

[0074] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0075] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0076] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0077] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0078] Embodiment one

[0079] The commonly used burner needs to supplement primary air and secondary air when in use; among them, the air mixed with gas and sprayed out through the fire hole is primary air, and the secondary air is the air in addition to the primary air and capable of supplying gas for continuous combustion. The amount of secondary air supplemented by the burner in the related art is uncontrollable, and too much secondary air may affect the combustion efficiency of the gas.

[0080] To solve the above problems, referring to Figures 1 to 3 The present embodiment provides a burner, which comprises a burner head 100, a fire cap structure 200, a first air door adjusting structure 300 and a blower 800.

[0081] The first secondary air channel 110 is arranged on the burner head 100; the fire cap structure 200 is arranged on the burner head 100, the first fire hole 210 and the first secondary air outlet hole 220 are arranged on the fire cap structure 200, the axis of the first fire hole 210 intersects with the axis of the first secondary air outlet hole 220, and the secondary air cavity 230 is formed between the fire cap structure 200 and the burner head 100, the outlet of the first secondary air channel 110 and the first secondary air outlet hole 220 are both in communication with the secondary air cavity 230; the blower 800 is in communication with the air inlet of the first secondary air channel 110, and the blower 800 is used for conveying secondary air into the first secondary air channel 110; the first air door adjusting structure 300 is arranged at the air inlet of the first secondary air channel 110, and the first air door adjusting structure 300 is used for adjusting the secondary air inlet area of the air inlet of the first secondary air channel 110.

[0082] When the burner is in use, the gas can be combusted at the first fire hole 210, and the first secondary air outlet hole 220 has the function of guiding the secondary air. Under the action of the air blower 800 conveying the secondary air into the first secondary air channel 110, the secondary air successively flows through the first secondary air channel 110 and the secondary air cavity 230 and flows out of the first secondary air outlet hole 220, and the secondary air acts on the flame (for example, the root of the flame) at the first fire hole 210, which is beneficial to the combustion of the gas at the first fire hole 210. At the same time, the first damper adjusting structure 300 adjusts the secondary air inlet area of the air inlet of the first secondary air channel 110, and then adjusts the flow of the secondary air flowing through the first secondary air outlet hole 220, so as to realize the purpose of the first secondary air outlet hole 220 providing appropriate flow of secondary air for different pots, which is beneficial to reduce the risk of insufficient combustion of the gas, and is beneficial to reduce the combustion heat of the gas taken away by the secondary air to improve the combustion efficiency of the gas. It can be understood that the appropriate flow of secondary air is beneficial to the stability of the gas combustion, can improve the gas combustion temperature, reduce the emission of flue gas, save energy and protect the environment.

[0083] Exemplarily, for large-size and / or flat-bottomed pots, the first damper adjusting structure 300 can be used to adjust the secondary air inlet area of the air inlet of the first secondary air channel 110 to be larger.

[0084] Exemplarily, for small-size and / or round-bottomed pots, the first damper adjusting structure 300 can be used to adjust the secondary air inlet area of the air inlet of the first secondary air channel 110 to be smaller.

[0085] Exemplarily, along the center line direction of the first secondary air outlet hole 220, the height distance H between the center of the air outlet end of the first fire hole 210 and the center of the air outlet end of the first secondary air outlet hole 220 is ≤15mm, so that the secondary air flowing out of the first secondary air outlet hole 220 has a better effect on the flame (for example, the root of the flame) at the first fire hole 210, which is beneficial to the combustion of the gas at the first fire hole 210.

[0086] In this embodiment, continuing to refer to Figures 1 to 3 As shown in the figure, the first damper adjusting structure 300 includes a first mounting table 410 and a first damper piece 310. The first mounting table 410 is arranged opposite to the air inlet of the first secondary air channel 110. The first damper piece 310 is arranged on the first mounting table 410, and a first air inlet gap is formed between the first damper piece 310 and the end of the air inlet of the first secondary air channel 110. The first damper piece 310 can move along the axial direction of the first mounting table 410 to adjust the first air inlet gap, so as to facilitate the adjustment of the size of the secondary air inlet area of the air inlet of the first secondary air channel 110.

[0087] Exemplarily, along the axial direction of the first mounting base 410, the projection of the air inlet of the first secondary air channel 110 is located on the first air door 310, in other words, the first air door 310 has a shielding effect on the air inlet of the first secondary air channel 110.

[0088] Exemplarily, the axial line of the first mounting base 410 is parallel to or coincides with the center line of the air inlet of the first secondary air channel 110.

[0089] In a feasible embodiment, the first air door adjusting structure 300 further comprises a first driving member 320, which is connected with the first air door 310 and is used to drive the first air door 310 to move along the axial direction of the first mounting base 410, so as to facilitate the size adjustment of the first air inlet gap.

[0090] In some embodiments, the first driving member 320 can comprise a motor. The output shaft of the first driving member 320 is connected with a driving gear 330; the first air door 310 comprises a sleeve part 311 and a gear plate part 312, the sleeve part 311 is sleeved on the first mounting base 410 and is threadedly connected with the first mounting base 410, and the gear plate part 312 is engaged with the driving gear 330; along the axial direction of the first mounting base 410, the first air inlet gap is formed between the gear plate part 312 and the end of the air inlet of the first secondary air channel 110. In this embodiment, the first driving member 320 drives the driving gear 330 to rotate, the driving gear 330 drives the gear plate part 312 to rotate through meshing transmission, so as to make the gear plate part 312 approach or move away from the air inlet of the first secondary air channel 110, thereby realizing the size adjustment of the first air inlet gap, which is stable and reliable; and the first driving member 320 is a motor, which is conducive to improving the adjustment accuracy of the first air inlet gap.

[0091] In other embodiments, the first driving member 320 is a knob, the knob is connected with the driving gear 330 through a connecting shaft (not shown), the first air door 310 comprises a sleeve part 311 and a gear plate part 312, the sleeve part 311 is sleeved on the first mounting base 410 and is threadedly connected with the first mounting base 410, and the gear plate part 312 is engaged with the driving gear 330; along the axial direction of the first mounting base 410, the first air inlet gap is formed between the gear plate part 312 and the end of the air inlet of the first secondary air channel 110. In this embodiment, rotating the knob can drive the driving gear 330 to rotate, the driving gear 330 drives the gear plate part 312 to rotate through meshing transmission, so as to make the gear plate part 312 approach or move away from the air inlet of the first secondary air channel 110, thereby realizing the size adjustment of the first air inlet gap, which is stable and reliable.

[0092] Exemplarily, the connecting shaft is a flexible shaft, which is convenient for assembly and is conducive to the position arrangement of the knob. Of course, the connecting shaft can also be a rigid shaft, which is not limited in the present embodiment.

[0093] In the embodiment, continuing to refer to Figures 1 to 3 As shown in the figure, the furnace head 100 includes a furnace head base 101 and a secondary air inlet pipe 102 connected with the furnace head base 101, and a secondary air cavity 230 is formed between the furnace head base 101 and the fire cap structure 200. The air inlet of the first secondary air passage 110 can be located at the end of the secondary air inlet pipe 102 away from the furnace head base 101.

[0094] In the embodiment, continuing to refer to Figures 1 to 3 As shown in the figure, a first mixed gas cavity 240 is formed between the furnace head 100 and the fire cap structure 200, and a first ejector passage 140 is arranged on the furnace head 100, and the air outlet of the first ejector passage 140 and the first fire hole 210 are both connected with the first mixed gas cavity 240. It can be understood that the primary air and the gas flow and mix in the first ejector passage 140 and the first mixed gas cavity 240 in turn and then flow out of the first fire hole 210 for combustion. The arrangement of the first mixed gas cavity 240 is conducive to the full mixing of the primary air and the gas and the full combustion of the gas. The air inlet of the first ejector passage 140 can be located at the end of the secondary air inlet pipe 102 away from the furnace head base 101.

[0095] Exemplarily, the first mixed gas cavity 240 is annular, which is conducive to the uniformity of the air outlet of each first fire hole 210.

[0096] Exemplarily, the first mixed gas cavity 240 is formed between the furnace head base 101 and the fire cap structure 200.

[0097] In a feasible implementation, a mixed gas passage 120 is arranged on the furnace head 100, and the first ejector passage 140, the mixed gas passage 120 and the first fire hole 210 are sequentially connected. The arrangement of the mixed gas passage 120 is more conducive to the full mixing of the primary air and the gas.

[0098] Exemplarily, the furnace head 100 further includes a first mixed gas ejector pipe 103, the first mixed gas ejector pipe 103 is provided with the first ejector passage 140, and the furnace head base 101 is provided with the mixed gas passage 120. The secondary air inlet pipe 102 and the first mixed gas ejector pipe 103 can be arranged side by side.

[0099] In a feasible implementation, the burner further includes a first nozzle 510 arranged at the air inlet of the first ejector passage 140, and the first nozzle 510 is used for conveying the gas to the air inlet of the first ejector passage 140. The first nozzle 510 can be used for connecting a gas control valve. It can be understood that the gas and the air share an air inlet of the first ejector passage 140 to enter the first ejector passage 140, which is conducive to the full mixing between the primary air and the gas and the forming and manufacturing of the furnace head 100.

[0100] In this embodiment, continue to refer to Figures 1 to 3 As shown, the fire cap structure 200 is provided with a second fire hole 250, and the first fire hole 210 is arranged outside the second fire hole 250. It can be understood that the first fire hole 210 is arranged in multiple around the second fire hole 250. The second mixed gas cavity 270 is formed between the furnace head 100 and the fire cap structure 200, the second injection channel 150 is arranged on the furnace head 100, and the gas outlet of the second injection channel 150 and the second fire hole 250 are both connected with the second mixed gas cavity 270. It can be understood that the primary air and the fuel gas flow and mix in the second injection channel 150 and the second mixed gas cavity 270 in turn and then flow out of the second fire hole 250 for combustion, and the arrangement of the second injection channel 150 and the second mixed gas cavity 270 is conducive to the full mixing of the primary air and the fuel gas and the full combustion of the fuel gas. The gas inlet of the second injection channel 150 can be located at the end of the secondary air inlet pipe 102 away from the furnace head base 101.

[0101] Exemplarily, the second mixed gas cavity 270 is columnar, which is convenient for molding.

[0102] Exemplarily, the first fire hole 210 is arranged in one-to-one correspondence with the first secondary air outlet hole 220, and the axis of the first fire hole 210 intersects with the axis of the corresponding first secondary air outlet hole 220.

[0103] Exemplarily, the secondary air cavity 230 is annular, which is convenient for being connected with the first secondary air outlet hole 220 and is conducive to the uniformity of the gas outlet of each first secondary air outlet hole 220.

[0104] Exemplarily, the second mixed gas cavity 270 is formed between the furnace head base 101 and the fire cap structure 200.

[0105] Exemplarily, the furnace head 100 further comprises a second mixed gas injection pipe 104, and the second mixed gas injection pipe 104 is provided with the second injection channel 150. The secondary air inlet pipe 102, the first mixed gas injection pipe 103 and the second mixed gas injection pipe 104 can be arranged side by side.

[0106] Exemplarily, the second mixed gas injection pipe 104 is located between the secondary air inlet pipe 102 and the first mixed gas injection pipe 103, which is conducive to the molding and manufacturing of the furnace head base 101.

[0107] In an embodiment, the burner further comprises a second nozzle 520 arranged at the air inlet of the second ejecting passage 150, and the second nozzle 520 is configured to supply fuel gas to the air inlet of the second ejecting passage 150. The second nozzle 520 can be connected to a fuel gas control valve. It can be understood that the fuel gas and the air share the air inlet of the second ejecting passage 150 to enter the second ejecting passage 150, which is conducive to the sufficient mixing between the primary air and the fuel gas and the forming and manufacturing of the burner 100.

[0108] In the embodiment, the burner further comprises a second damper adjusting structure arranged at the air inlet of the first ejecting passage 140, and the second damper adjusting structure is configured to adjust the primary air inlet area of the air inlet of the first ejecting passage 140. Figure 2 and Figure 3 It can be understood that if the amount of the primary air entering the first ejecting passage 140 is small, the fuel gas can not be sufficiently combusted, the amount of harmful gas generated can be large, and the combustion temperature can be low. In the embodiment, the second damper adjusting structure is configured to adjust the primary air inlet area of the air inlet of the first ejecting passage 140 to adjust the amount of the primary air entering the first ejecting passage 140, which is conducive to the sufficient combustion of the fuel gas, the reduction of the generation of harmful gas, and the increase of the combustion temperature.

[0109] In an embodiment, the second damper adjusting structure comprises a second mounting table 420 and a second damper piece 610. The second mounting table 420 is arranged opposite to the air inlet of the first ejecting passage 140, and the second damper piece 610 is arranged on the second mounting table 420. The second damper piece 610 and the end of the air inlet of the first ejecting passage 140 form a second air inlet gap therebetween, and the second damper piece 610 is movable along the axial direction of the second mounting table 420 to adjust the second air inlet gap, thereby facilitating the adjustment of the primary air inlet area of the air inlet of the first ejecting passage 140.

[0110] For example, the second damper piece 610 is sleeved on the second mounting table 420 and is threadedly connected to the second mounting table 420.

[0111] For example, along the axial direction of the second mounting table 420, the projection of the air inlet of the first ejecting passage 140 is located on the second damper piece 610, that is, the second damper piece 610 has a shielding effect on the air inlet of the first ejecting passage 140.

[0112] For example, the axis of the second mounting table 420 is parallel to or coincides with the center line of the air inlet of the first ejecting passage 140.

[0113] Exemplarily, the first nozzle 510 is arranged on the second mounting base 420. For example, the second mounting base 420 is provided with a first mounting hole (not shown), and the first nozzle 510 is inserted into the first mounting hole. It can be understood that the first nozzle 510 does not interfere with the second damper 610, which is conducive to the gas being injected into the air inlet of the first injection channel 140 through the first nozzle 510. The first mounting hole extends along the axial direction of the second mounting base 420.

[0114] In the embodiment, referring to Figure 2 and Figure 3 , the burner further comprises a third damper adjusting structure arranged at the air inlet of the second injection channel 150, and the third damper adjusting structure is used to adjust the primary air inlet area of the air inlet of the second injection channel 150, which is conducive to the sufficient combustion of the gas, reduces the generation of harmful gases, and improves the combustion temperature.

[0115] In an available embodiment, the third damper adjusting structure comprises a third mounting base 430 and a third damper 630. The third mounting base 430 is arranged opposite to the air inlet of the second injection channel 150; the third damper 630 is arranged on the third mounting base 430, and a third air gap is formed between the third damper 630 and the end of the air inlet of the second injection channel 150, and the third damper 630 can move along the axial direction of the third mounting base 430 to adjust the third air gap, which facilitates the adjustment of the size of the primary air inlet area of the air inlet of the second injection channel 150.

[0116] Exemplarily, the third damper 630 is sleeved on the third mounting base 430 and is threadedly connected with the third mounting base 430.

[0117] Exemplarily, along the axial direction of the third mounting base 430, the projection of the air inlet of the second injection channel 150 is located on the third damper 630, in other words, the third damper 630 has a shielding effect on the air inlet of the second injection channel 150.

[0118] Exemplarily, the axis of the third mounting base 430 is parallel to or coincides with the center line of the air inlet of the second injection channel 150.

[0119] Exemplarily, the second nozzle 520 is arranged on the third mounting base 430. For example, the third mounting base 430 is provided with a second mounting hole (not shown), and the second nozzle 520 is inserted into the second mounting hole. It can be understood that the second nozzle 520 does not interfere with the third damper 630, which is conducive to the gas being injected into the air inlet of the second injection channel 150 through the second nozzle 520. The second mounting hole extends along the axial direction of the third mounting base 430.

[0120] In some embodiments, as Figure 2 and Figure 3As shown, the burner further comprises a second driving member 620, the second damper member 610 and the third damper member 630 are connected with the second driving member 620, the second driving member 620 is used to drive the second damper member 610 to move along the axial direction of the second mounting base 420, and is used to drive the third damper member 630 to move along the axial direction of the third mounting base 430, so as to facilitate the size adjustment of the second air inlet gap and the third air inlet gap.

[0121] Exemplarily, the structure and connection mode of the second driving member 620 and the second damper member 610 can be same as the structure and connection mode of the first driving member 320 and the first damper member 310, and the embodiment will not be described in more details.

[0122] Exemplarily, the structure and connection mode of the second driving member 620 and the third damper member 630 can be same as the structure and connection mode of the first driving member 320 and the first damper member 310, and the embodiment will not be described in more details.

[0123] It can be understood that when the second driving member 620 is a motor, and the second damper member 610 and the third damper member 630 are gear members, the screw rotation direction of the inner thread of the second damper member 610 is same as the screw rotation direction of the inner thread of the third damper member 630.

[0124] In other embodiments, the burner does not comprise the second driving member 620. The second damper adjustment structure further comprises a third driving member (not shown) connected with the second damper member 610, the third driving member is used to drive the second damper member 610 to move along the axial direction of the second mounting base 420, and the second damper adjustment structure further comprises a fourth driving member (not shown) connected with the third damper member 630, the fourth driving member is used to drive the third damper member 630 to move along the axial direction of the third mounting base 430. In the embodiment, the second air inlet gap and the third air inlet gap are adjusted separately, that is, the primary air inlet area of the air inlet of the first injection channel 140 and the primary air inlet area of the air inlet of the second injection channel 150 can be adjusted separately, which is more conducive to the gas combustion at the first fire hole 210 and the second fire hole 250.

[0125] Exemplarily, the structure and connection mode of the third driving member and the second damper member 610 can be same as the structure and connection mode of the first driving member 320 and the first damper member 310, and the embodiment will not be described in more details.

[0126] Exemplarily, the structure and connection mode of the fourth driving member and the third damper member 630 can be same as the structure and connection mode of the first driving member 320 and the first damper member 310, and the embodiment will not be described in more details.

[0127] In the embodiment, continue to refer to Figure 2 and Figure 3As shown, the burner further comprises a mounting bracket 400 arranged on the burner head 100, and the mounting bracket 400 is provided with a first mounting table 410, a second mounting table 420 and a third mounting table 430.

[0128] Exemplarily, the secondary air inlet pipe 102 and the first mixed gas injection pipe 103 are connected with the mounting bracket 400, for example, the secondary air inlet pipe 102 and the first mixed gas injection pipe 103 are connected with the mounting bracket 400 by means of bolt fastening.

[0129] Exemplarily, the peripheral portions of the secondary air inlet pipe 102 and the first mixed gas injection pipe 103 are provided with fixing protrusions (not shown). The mounting bracket 400 is in U shape and has two opposite fixing arms (not shown), which are arranged one by one with the fixing protrusions and connected with the corresponding fixing protrusions.

[0130] In the embodiment, referring to Figures 1 to 3 As shown, the burner head 100 is provided with a second secondary air passage 130, and the fire cap structure 200 is provided with a second secondary air outlet hole 260, which is communicated with the second secondary air passage 130, and the axis of the second fire hole 250 is arranged at an angle with the axis of the second secondary air outlet hole 260.

[0131] In the embodiment, the air blower 800 is communicated with the air inlet of the second secondary air passage 130. When the burner is used, the gas can be combusted at the second fire hole 250. Since the axis of the second fire hole 250 is arranged at an angle with the axis of the second secondary air outlet hole 260, the second secondary air outlet hole 260 has the function of guiding the secondary air, and under the action of the air blower 800 conveying the secondary air into the second secondary air passage 130, the secondary air flowing through the second secondary air passage 130 and flowing out of the second secondary air outlet hole 260 can act on the flame (for example, the root of the flame) at the second fire hole 250, which is beneficial to the combustion of the gas at the second fire hole 250.

[0132] In the embodiment, referring to Figures 1 to 6As shown, the burner further comprises a mounting box 700, the burner head 100 is arranged in the mounting box 700, the fire cap structure 200 extends out of the mounting box 700 and forms a seal between the mounting box 700, and the air blower 800 is arranged outside the mounting box 700. Among them, the air blower 800 is used to transport air into the mounting box 700 to increase the air pressure in the mounting box 700, which is conducive to the more efficient flow of air in the mounting box 700 to the first and second secondary air channels 110, 130, the first and second injection channels 140, 150, and further conducive to the combustion-supporting of the primary air and the secondary air to the gas. It can be understood that a flow space is formed between the outer periphery of the burner head 100 and the inner wall of the mounting box 700, the air inlets of the first and second secondary air channels 110, 130, and the air inlets of the first and second injection channels 140, 150 are all connected with the flow space, and the air blower 800 is arranged in communication with the flow space.

[0133] It can be understood that the supplement amount of the primary air and the secondary air can be roughly controlled by adjusting the rotating speed of the air blower 800; the supplement amount of the primary air and the secondary air can be more accurately controlled by the damper adjustment structure. The damper adjustment structure refers to the first, second, and third damper adjustment structures.

[0134] In a feasible implementation, the mounting bracket 400 is arranged in the mounting box 700, and the first and second nozzles 510, 520 are exposed outside the mounting box 700, which is convenient for connecting with the gas flow controller.

[0135] In this embodiment, with reference to Figures 4 to 6 As shown, the mounting box 700 comprises a box body 710 and a box cover 720. Among them, the box body 710 has an opening, the box body 710 is provided with a first edge 711 extending inwardly at the opening, the burner head 100 is arranged in the box body 710, the outer periphery of the fire cap structure 200 is provided with a second edge 2014, and the first edge 711 and the second edge 2014 are flush; the box cover 720 is arranged on the opening, the box cover 720 is provided with a mounting port (not shown), the fire cap structure 200 extends out of the mounting port, and the side of the box cover 720 facing the box body 710 is overlapped on the first edge 711. It can be understood that the second edge 2014 is located in the box body 710. In this embodiment, the first edge 711 and the second edge 2014 are flush, which is conducive to the good sealing of the fire cap structure 200 and the box cover 720 at the mounting port.

[0136] In some embodiments, the side of the box cover 720 facing the box body 710 can also be overlapped on the second edge 2014.

[0137] Exemplarily, a sealing gasket (not shown) is arranged between the box cover 720 and the first edge 711 to achieve a good sealing effect between the box body 710 and the box cover 720.

[0138] Exemplarily, the burner head base 101 is fixed to the bottom of the box body 710 by screw fastening.

[0139] Exemplarily, the box body 710 and the box cover 720 can be fixed together by screw fastening.

[0140] Exemplarily, when the first driving member 320 is a knob and the connecting shaft is a flexible shaft, the knob can be arranged at the bottom of the box body 710. Of course, the knob can also be arranged at other positions of the box body 710, which is not limited in the embodiment.

[0141] In a possible implementation, the installation box 700 includes two opposite box side walls, the air inlet of the first secondary air channel 110, the air inlet of the first ejector channel 140 and the air inlet of the second ejector channel 150 are arranged close to one of the two box side walls, the other of the two box side walls is provided with a ventilation hole, and the air blower 800 is arranged in communication with the ventilation hole. It can be understood that the air inlet of the first secondary air channel 110, the air inlet of the first ejector channel 140 and the air inlet of the second ejector channel 150 are far away from the ventilation hole, so that the air pressure at the air inlets of the first secondary air channel 110, the first ejector channel 140 and the second ejector channel 150 is relatively uniform, which is beneficial to improve the flow stability of the primary air in the first ejector channel 140 and the second ejector channel 150 and the flow stability of the secondary air in the first secondary air channel 110.

[0142] In the embodiment, as shown in Figure 1 , Figure 2 and Figure 4 , the fire cap structure 200 includes a fire cap base 201, an outer ring fire cap 202 and a center fire cap 203. The fire cap base 201 is arranged on the burner head 100, the fire cap base 201 is provided with the first secondary air outlet hole 220 and the second secondary air outlet hole 260, and the secondary air cavity 230, the first mixed gas cavity 240 and the second mixed gas cavity 270 are formed between the fire cap base 201 and the burner head 100; the outer ring fire cap 202 is arranged on the fire cap base 201, and the outer ring fire cap 202 is provided with the first fire hole 210; the center fire cap 203 is arranged on the fire cap base 201, and the center fire cap 203 is provided with the second fire hole 250. The split design of the fire cap structure 200 is beneficial to the forming and manufacturing of the fire cap structure 200.

[0143] It can be understood that the center fire cap 203 is located inside the outer ring fire cap 202. In some embodiments, the center fire cap 203 and the outer ring fire cap 202 are arranged concentrically.

[0144] It can be understood that the outer ring fire cap 202 is provided with a plurality of first fire holes 210 at intervals in the circumferential direction. Exemplarily, a plurality of first secondary air outlet holes 220 are provided at intervals in the circumferential direction of the outer ring fire cap 202.

[0145] Exemplarily, the center fire cap 203 is provided with at least one circle of second fire holes 250 at intervals in the axial direction, and a plurality of second fire holes 250 arranged at intervals in the circumferential direction of the center fire cap 203 form a circle of second fire holes 250. Exemplarily, a plurality of second secondary air outlet holes 260 are provided at intervals in the circumferential direction of the center fire cap 203. Wherein, the center line of at least part of the second fire holes 250 intersects the center line of the second secondary air outlet holes 260.

[0146] Exemplarily, the outlet end of the second fire hole 250 is located on the outer periphery of the center fire cap 203, and the second secondary air outlet hole 260 is located between the outer ring fire cap 202 and the center fire cap 203.

[0147] Exemplarily, the second secondary air passage 130 is annular, which is convenient for being connected with the second secondary air outlet hole 260 and is conducive to the uniformity of the air outlet of each second secondary air outlet hole 260.

[0148] Exemplarily, the outlet end of the first fire hole 210 is located on the outer circle of the outer ring fire cap 202, and the first secondary air outlet hole 220 is located on the outside of the outer ring fire cap 202.

[0149] Exemplarily, the fire cap seat 201 and the burner cap seat 101 are surrounded to form a secondary air cavity 230. For example, the fire cap seat 201 is provided with an annular groove (not shown) connected with the first secondary air outlet hole 220, and the fire cap seat 201 and the burner cap seat 101 are surrounded at the annular groove to form the secondary air cavity 230, which is conducive to the forming and manufacturing of the burner cap seat 101 and the fire cap seat 201.

[0150] Exemplarily, the outer ring fire cap 202, the fire cap seat 201 and the burner cap seat 101 are surrounded to form a first mixed gas cavity 240. For example, the fire cap seat 201 is provided with an annular channel (not shown), and the outer ring fire cap 202, the fire cap seat 201 and the burner cap seat 101 are surrounded at the annular channel to form the first mixed gas cavity 240, which is conducive to the forming and manufacturing of the burner cap seat 101 and the fire cap seat 201.

[0151] Exemplarily, the second mixed gas cavity 270 is formed by surrounding the center fire cap 203, the fire cap seat 201 and the burner cap seat 101. For example, the fire cap seat 201 is provided with a center passage (not shown), and the center fire cap 203, the fire cap seat 201 and the burner cap seat 101 are surrounded at the center passage to form the first mixed gas cavity 240, which is beneficial to the forming manufacturing of the burner cap seat 101 and the fire cap seat 201.

[0152] Exemplarily, the burner cap seat 101 is provided with an annular boss (not shown), and the fire cap seat 201 can be sleeved on the annular boss, which is beneficial to the positioning assembly between the fire cap seat 201 and the burner cap 100.

[0153] Exemplarily, the second edge 2014 is provided on the outer periphery of the fire cap seat 201.

[0154] In some embodiments, the first fire hole 210 and the first secondary air outlet hole 220 are each provided with at least one circle.

[0155] Exemplarily, the fire cap seat 201 includes an outer ring seat body 2011, a center seat body 2012 and an annular plate 2013. The outer ring seat body 2011 and the burner cap 100 surround to form the secondary air cavity 230, the outer ring seat body 2011 is provided with the first secondary air outlet hole 220, and the outer ring fire cap 202 is arranged on the outer ring seat body 2011; the center fire cap 203 is arranged on the center seat body 2012; the annular plate 2013 is arranged between the outer ring seat body 2011 and the center seat body 2012, and the annular plate 2013 is provided with the second secondary air outlet hole 260. In this embodiment, the annular plate 2013 is provided with the second secondary air outlet hole 260, the second secondary air outlet hole 260 has a smaller ventilation area, so that the flow rate of the gas in the mounting box 700 flowing out through the second secondary air outlet hole 260 is smaller, which is beneficial to the gas in the mounting box 700 flowing to the air inlet of the first secondary air passage 110, the air inlet of the first injection passage 140 and the air inlet of the second injection passage 150, and is beneficial to improving the flow stability of the primary air in the first injection passage 140 and the second injection passage 150 and the flow stability of the secondary air in the first secondary air passage 110, and is beneficial to the full combustion of the gas, reducing the generation of harmful gas and improving the combustion temperature.

[0156] Exemplarily, the outer ring seat body 2011 is provided with an annular groove and an annular passage.

[0157] Exemplarily, the center seat body 2012 is provided with a center passage.

[0158] In other embodiments, the first fire holes 210 and the first secondary air outlet holes 220 are each provided with at least two circles, i.e., one group of one circle of the first fire holes 210 and one circle of the first secondary air outlet holes 220. It can be understood that the pitch circle diameters of the first fire holes 210 in different circles are different, and the pitch circle diameters of the first secondary air outlet holes 220 in different circles are different.

[0159] Exemplarily, taking that the first fire holes 210 and the first secondary air outlet holes 220 are each provided with at least two circles as an example, at least one first mixed gas cavity 240 and at least one secondary air cavity 230 are formed between the fire cap structure 200 and the burner head 100, and one first mixed gas cavity 240 is in communication with at least one circle of the first fire holes 210, and one secondary air cavity 230 is in communication with at least one circle of the first secondary air outlet holes 220.

[0160] Exemplarily, taking that at least two secondary air cavities 230 are formed between the fire cap structure 200 and the burner head 100 as an example, at least one first secondary air passage 110 is provided on the burner head 100, and one first secondary air passage 110 is in communication with at least one secondary air cavity 230. Exemplarily, the first air door adjusting structure 300 is provided in one-to-one correspondence with the first secondary air passage 110. When the first air door adjusting structure 300 and the first secondary air passage 110 are provided with at least two, different cookware, such as different size specifications of cookware, different bottom shapes of cookware, the secondary air inlet amount of the first secondary air passage 110 can be adjusted by the corresponding first air door adjusting structure 300, which is beneficial to the full combustion of gas and improves the combustion efficiency of gas.

[0161] Exemplarily, taking that at least two first mixed gas cavities 240 are formed between the fire cap structure 200 and the burner head 100 as an example, at least one first suction passage 140 is provided on the burner head 100, and one mixed gas passage 120 is in communication with at least one first mixed gas cavity 240. Exemplarily, the first suction passage 140 and the mixed gas passage 120 can be provided in one-to-one correspondence. Exemplarily, the second air door adjusting structure is provided in one-to-one correspondence with the first suction passage 140. When the second air door adjusting structure and the first suction passage 140 are provided with at least two, different cookware, such as different size specifications of cookware, different bottom shapes of cookware, the primary air inlet amount of the mixed gas passage 120 can be adjusted by the corresponding second air door adjusting structure, which is beneficial to the full combustion of gas.

[0162] Embodiment Two

[0163] The control method can be applied to the burner in Embodiment One, and reference is made to Figure 7 The control method includes:

[0164] S1, obtaining size information of the cookware;

[0165] S2, start the air blower 800, and control the first air door adjusting structure 300 to adjust the secondary air inlet area of the air inlet of the first secondary air passage 110 according to the size information of the pot.

[0166] It can be understood that the size information of the pot includes but is not limited to the shape of the pot and the diameter of the pot.

[0167] In the embodiment, the air blower 800 is started, the first air door adjusting structure 300 is controlled to adjust the secondary air inlet area of the air inlet of the first secondary air passage 110 according to the acquired size information of the pot, thereby achieving the purpose of providing appropriate flow of secondary air for different pots, which is beneficial to reduce the risk of insufficient gas combustion and improve the combustion efficiency of the gas.

[0168] In the embodiment, before acquiring the size information of the pot, the secondary air inlet area information of the air inlet of the first secondary air passage 110 corresponding to the size information of different pots is collected and stored in the controller. The size information of the pot is acquired by inputting the size information of the pot, and the controller acquires the input size information of the pot. In the embodiment, after the controller acquires the input size information of the pot, the first air door adjusting structure 300 is controlled to act based on the corresponding stored secondary air inlet area information of the air inlet of the first secondary air passage 110, which is convenient, fast and accurate and reliable. It can be understood that the first air door adjusting structure 300 is electrically connected to the controller.

[0169] Exemplarily, the controller may, for example, include but is not limited to a programmable logic controller (PLC) and a single-chip microcomputer.

[0170] Exemplarily, the size information of the pot can be input through an electronic screen, a button or a knob, etc. It can be understood that the electronic screen and the button are electrically connected to the controller.

[0171] In some embodiments, the first air door adjusting structure 300 can be controlled to adjust the secondary air inlet area of the air inlet of the first secondary air passage 110 according to the input secondary air inlet area information of the air inlet of the first secondary air passage 110. The input of the secondary air inlet area information of the air inlet of the first secondary air passage 110 can be input through an electronic screen, a button or a knob, etc. The secondary air inlet area information of the air inlet of the first secondary air passage 110 can be a specific numerical value or an instruction to increase or decrease.

[0172] In the embodiment, the method of controlling the first damper adjusting structure 300 to adjust the secondary air inlet area of the air inlet of the first secondary air passage 110 comprises: controlling the first driving member 320 of the first damper adjusting structure 300 to drive the first damper member 310 to move axially along the first mounting table 410 to adjust the first air inlet gap. In the embodiment, the first driving member 320 is controlled to drive the first damper member 310 to move axially along the first mounting table 410 to adjust the first air inlet gap, so as to adjust the secondary air inlet area of the air inlet of the first secondary air passage 110, which is convenient, fast, and accurate and reliable.

[0173] Exemplarily, when the first driving member 320 is a motor, the method of controlling the first damper adjusting structure 300 to adjust the secondary air inlet area of the air inlet of the first secondary air passage 110 comprises: controlling the motor to rotate by a preset angle. It can be understood that, according to the size information of the input pot and the secondary air inlet area information of the air inlet of the first secondary air passage 110 corresponding to the size information, the preset angle of rotation of the motor can be calculated.

[0174] In the embodiment, the method further comprises: controlling the second damper adjusting structure to adjust the primary air inlet area of the air inlet of the first ejector passage 140. The control mode of the second damper adjusting structure is the same as that of the first damper adjusting structure 300, and the embodiment will not be described in detail.

[0175] In the embodiment, the method further comprises: controlling the third damper adjusting structure to adjust the primary air inlet area of the air inlet of the second ejector passage 150. The control mode of the third damper adjusting structure is the same as that of the first damper adjusting structure 300, and the embodiment will not be described in detail.

[0176] In the specific contents of the above specific embodiments, any technically consistent combination of technical features can be combined, and in order to make the description simple, not all possible combinations of the above technical features are described, but as long as the combination of technical features does not exist, it should be considered as the scope of the description.

[0177] The specific contents of the above specific embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A burner, characterized in that, include: A burner head (100) is provided with a first and a second air passage (110). A flame cap structure (200) is provided on the burner head (100). The flame cap structure (200) is provided with a first flame hole (210) and a first secondary air outlet hole (220). The axis of the first flame hole (210) intersects with the axis of the first secondary air outlet hole (220). A secondary air cavity (230) is formed between the flame cap structure (200) and the burner head (100). The outlet of the first secondary air channel (110) and the first secondary air outlet hole (220) are both connected to the secondary air cavity (230). A blower (800) is connected to the air inlet of the first secondary air passage (110), and the blower (800) is used to deliver secondary air into the first secondary air passage (110); The first damper adjustment structure (300) is located at the air inlet of the first secondary air channel (110). The first damper adjustment structure (300) is used to adjust the secondary air intake area of ​​the air inlet of the first secondary air channel (110).

2. The burner according to claim 1, characterized in that, The first damper adjustment structure (300) includes: The first mounting platform (410) is positioned opposite to the air inlet of the first secondary air channel (110); A first damper (310) is disposed on the first mounting platform (410). A first air intake gap is formed between the first damper (310) and the end of the air intake of the first secondary air passage (110). The first damper (310) can move along the axial direction of the first mounting platform (410) to adjust the first air intake gap.

3. The burner according to claim 2, characterized in that, The first damper adjustment structure (300) further includes a first drive member (320), which is connected to the first damper member (310). The first drive member (320) is used to drive the first damper member (310) to move axially along the first mounting platform (410).

4. The burner according to claim 3, characterized in that, The first driving member (320) includes a motor, and the output shaft of the first driving member (320) is connected to a drive gear (330). The first damper component (310) includes a sleeve portion (311) and a gear plate portion (312). The sleeve portion (311) is sleeved on the first mounting platform (410) and threadedly connected to the first mounting platform (410). The gear plate portion (312) meshes with the drive gear (330). Along the axial direction of the first mounting platform (410), a first air intake gap is formed between the gear plate portion (312) and the end of the air inlet of the first secondary air passage (110).

5. The burner according to claim 1, characterized in that, Along the centerline of the first secondary air outlet (220), the height distance H between the center of the outlet end of the first fire hole (210) and the center of the outlet end of the first secondary air outlet (220) is ≤15mm.

6. The burner according to claim 1, characterized in that, The burner cap structure (200) is provided with a second fire hole (250), and the first fire hole (210) surrounds the second fire hole (250). A first mixing chamber (240) and a second mixing chamber (270) are formed between the burner head (100) and the burner cap structure (200). The burner head (100) is provided with a first ejector channel (140) and a second ejector channel (150). The gas outlet of the first ejector channel (140) and the first fire hole (210) are both connected to the first mixing chamber (240). The gas outlet of the second ejector channel (150) and the second fire hole (250) are both connected to the second mixing chamber (270).

7. The burner according to claim 6, characterized in that, The burner also includes: The second damper adjustment structure is located at the air inlet of the first ejector channel (140). The second damper adjustment structure is used to adjust the primary air intake area of ​​the air inlet of the first ejector channel (140). The third damper adjustment structure is located at the air inlet of the second ejector channel (150). The third damper adjustment structure is used to adjust the primary air intake area of ​​the air inlet of the second ejector channel (150).

8. The burner according to claim 7, characterized in that, The second damper adjustment structure includes: The second mounting platform (420) is positioned opposite the air inlet of the first ejector channel (140); The second damper (610) is disposed on the second mounting platform (420). A second air intake gap is formed between the second damper (610) and the end of the air intake of the first ejector channel (140). The second damper (610) can move along the axial direction of the second mounting platform (420) to adjust the second air intake gap. The third damper adjustment structure includes: The third mounting platform (430) is positioned opposite the air inlet of the second ejector channel (150); A third damper (630) is disposed on the third mounting platform (430). A third air intake gap is formed between the third damper (630) and the end of the air intake of the second ejector channel (150). The third damper (630) can move along the axial direction of the third mounting platform (430) to adjust the third air intake gap.

9. The burner according to claim 8, characterized in that, The burner further includes a second drive member (620), and the second damper member (610) and the third damper member (630) are both connected to the second drive member (620). The second drive member (620) is used to drive the second damper member (610) to move axially along the second mounting platform (420), and to drive the third damper member (630) to move axially along the third mounting platform (430). Alternatively, the second damper adjustment structure may further include a third driving member connected to the second damper (610), the third driving member being used to drive the second damper (610) to move axially along the second mounting platform (420), and the third damper adjustment structure may further include a fourth driving member connected to the third damper (630), the fourth driving member being used to drive the third damper (630) to move axially along the third mounting platform (430).

10. The burner according to claim 6, characterized in that, The burner head (100) is provided with a second secondary air channel (130), and the burner cover structure (200) is provided with a second secondary air outlet (260). The second secondary air outlet (260) is connected to the second secondary air channel (130), and the axis of the second burner hole (250) is set at an angle to the axis of the second secondary air outlet (260). The burner also includes a mounting box (700), the burner head (100) is disposed in the mounting box (700), the burner cap structure (200) extends out of the mounting box (700) and forms a seal with the mounting box (700), a flow space is formed between the outer periphery of the burner head (100) and the inner wall of the mounting box (700), and the air inlet of the first secondary air channel (110) and the air inlet of the second secondary air channel (130) are both connected to the flow space; The blower (800) is located outside the mounting box (700) and is connected to the circulation space.

11. The burner according to claim 10, characterized in that, The mounting box (700) includes: The box body (710) has an opening, and the box body (710) has a first edge (711) that bends inward at the opening. The burner head (100) is located inside the box body (710). The outer periphery of the fire cover structure (200) has a second edge (2014). The first edge (711) and the second edge (2014) are flush. The box cover (720) is sealed on the opening. The box cover (720) has an installation port. The fire cap structure (200) extends out of the installation port, and the box cover (720) overlaps the first edge (711) on the side facing the box body (710).

12. The burner according to claim 10, characterized in that, The mounting box includes two opposing sidewalls. The air inlets of the first and second air channels (110), the first ejector channel (140), and the second ejector channel (150) are all located near one of the two sidewalls. The other sidewall is provided with a ventilation hole, and the blower (800) is connected to the ventilation hole.

13. The burner according to claim 10, characterized in that, The flame cap structure (200) includes: A burner cap holder (201) is disposed on the burner head (100). The burner cap holder (201) is provided with a first secondary air outlet (220) and a second secondary air outlet (260). The burner cap holder (201) and the burner head (100) form a secondary air cavity (230), a first mixed gas cavity (240) and a second mixed gas cavity (270). An outer ring flame cap (202) is disposed on the flame cap seat (201), and the first flame hole (210) is provided on the outer ring flame cap (202). A central flame cap (203) is disposed on the flame cap seat (201), and a second flame hole (250) is provided on the central flame cap (203).

14. The burner according to claim 13, characterized in that, The flame holder (201) includes: The outer ring seat (2011) and the burner head (100) form a secondary air cavity (230). The outer ring seat (2011) is provided with a first secondary air outlet (220). The outer ring burner cover (202) is provided on the outer ring seat (2011). A central base (2012) is provided on the central base (2012); An annular plate (2013) is disposed between the outer ring seat (2011) and the central seat (2012), and the annular plate (2013) is provided with a second secondary air outlet (260).

15. A control method applied to the burner according to any one of claims 1-14, characterized in that, include: Get the size information of the cookware; Start the blower (800) and, according to the size information of the cookware, control the first damper adjustment structure (300) to adjust the secondary air intake area of ​​the air inlet of the first secondary air channel (110).

16. The control method according to claim 15, characterized in that, Before acquiring the size information of the cookware, the method further includes: collecting the secondary air intake area information of the air inlet of the first secondary air channel (110) corresponding to different cookware size information and storing it in the controller; The step of obtaining the size information of the cookware includes: inputting the size information of the cookware, and the controller obtaining the input size information of the cookware.

17. The control method according to claim 15, characterized in that, The first damper adjustment structure (300) includes a first mounting platform (410), a first damper component (310), and a first drive component (320). The first mounting platform (410) is disposed opposite to the air inlet of the first secondary air passage (110). The first damper component (310) is disposed on the first mounting platform (410). A first air inlet gap is formed between the first damper component (310) and the end of the air inlet of the first secondary air passage (110). The first damper component (310) can move along the axial direction of the first mounting platform (410) to adjust the first air inlet gap. The first drive component (320) is connected to the first damper component (310). The first drive component (320) is used to drive the first damper component (310) to move along the axial direction of the first mounting platform (410). The control of the first damper adjustment structure (300) adjusts the secondary air intake area of ​​the air inlet of the first secondary air passage (110), including: The first drive unit (320) is controlled to drive the first damper unit (310) to move axially along the first mounting platform (410) to adjust the first air intake gap.

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