An infrared burner and a gas cooker

Abstract

The present invention discloses an infrared burner and a gas cooker. The infrared burner includes a burner head, an inner-ring honeycomb body assembly and an outer-ring honeycomb body assembly. An inner-ring gas passage and an outer-ring gas passage are formed on the burner head. The inner-ring honeycomb body assembly is detachably arranged on the inner-ring gas passage, and the outer-ring honeycomb body assembly is detachably arranged on the outer-ring gas passage. A secondary air supplement passage is formed between the inner-ring honeycomb body assembly and the outer-ring honeycomb body assembly. The structure is simple and the thermal efficiency is relatively high.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and particularly to an infrared burner and a gas stove. Background Art

[0002] Existing infrared burners used on gas stoves generally consist of a burner head and a honeycomb body assembly. The honeycomb body assembly is composed of a honeycomb body, a gas distribution plate, a partition plate, and inner and outer decorative rings. The honeycomb body is a circular plate structure, formed by coiling a thin metal strip or sintering ceramics into one body. The honeycomb body is provided with a varying number of gaps or small holes, which are combustion holes. The honeycomb body is placed into a circular gas distribution plate, and a chamber is formed between the bottom surface of the honeycomb body and the gas distribution plate. A partition plate is further placed in the gas distribution plate, and the partition plate divides this chamber into two parts - an inner ring chamber and an outer ring chamber. The honeycomb body and the gas distribution plate are fixedly connected together through the inner and outer decorative rings. Thus, the inner and outer decorative rings, the honeycomb body, the gas distribution plate, and the partition plate are assembled into a honeycomb body assembly. The honeycomb body assembly is sleeved on the burner head, and the gas in the inner ring channel and the outer ring channel on the burner head enters the inner ring chamber and the outer ring chamber of the honeycomb body assembly, then flows out through the honeycomb body holes and burns on its surface.

[0003] The above infrared burner structure has at least the following problems:

[0004] 1. Since the honeycomb body adopts an integral structure, the heat generated during combustion is relatively concentrated, causing the temperature of the gas distribution plate assembly to be too high, and prone to high-temperature flashback. Therefore, the thermal load of this structure-designed infrared burner cannot be made large, generally about 3.2 kW, and it cannot fully meet the needs of users.

[0005] 2. When only using the inner ring fire, the gas in the inner ring chamber is prone to leak through the partition plate, resulting in waste of gas and prone to danger.

[0006] 3. The replenishment of secondary air is limited, especially in the middle of the honeycomb body, where the replenishment of secondary air is scarce, the combustion is incomplete, and it is easy to generate waste gas, resulting in environmental pollution. Summary of the Invention

[0007] The present invention aims to solve at least one of the problems existing in the related prior art to some extent. To this end, an object of the present invention is to provide an infrared burner with a simple structure and relatively high thermal efficiency.

[0008] The above object is achieved by the following technical solutions:

[0009] An infrared burner includes a burner head, an inner ring honeycomb body assembly and an outer ring honeycomb body assembly. An inner ring gas channel and an outer ring gas channel are formed on the burner head. The inner ring honeycomb body assembly is detachably arranged on the inner ring gas channel, and the outer ring honeycomb body assembly is detachably arranged on the outer ring gas channel. A secondary air supplement channel is formed between the inner ring honeycomb body assembly and the outer ring honeycomb body assembly.

[0010] In some embodiments, the inner ring honeycomb body assembly includes an inner air distribution plate and an inner ring honeycomb body. The inner air distribution plate includes an upper cover assembly and a lower cover assembly. The upper cover assembly includes an air distribution cup and a central tube. An air distribution chamber is formed in the air distribution cup. A through hole is arranged at the center of the bottom wall of the air distribution chamber. The bottom of the central tube is connected to the through hole. Upper connection holes are arranged at circumferentially spaced intervals on the bottom wall of the air distribution chamber around the through hole. The inner ring honeycomb body is sleeved outside the central tube and installed in the air distribution chamber.

[0011] The lower cover assembly includes a gas collection plate and a plurality of diversion tubes. Lower connection holes are arranged at circumferentially spaced intervals on the gas collection plate. The upper ends of the diversion tubes are connected to the corresponding upper connection holes, and the lower ends are connected to the corresponding lower connection holes. The diversion tubes connect the inner ring gas channel and the air distribution chamber.

[0012] In some embodiments, an air inlet channel is formed at the center of the burner head. A hollow diversion part extending downward is arranged at the center of the gas collection plate. The diversion part extends into the air inlet channel. The diversion part connects the air inlet channel and the gas collection plate. The gas collection plate is connected to the secondary air supplement channel.

[0013] In some embodiments, a first rib is arranged on the outer wall of the central tube near its lower end. The lower end of the central tube passes through the through hole and is riveted and fixed to the bottom surface of the air distribution cup by reverse riveting, and the first rib abuts against the bottom wall of the air distribution chamber.

[0014] In some embodiments, a second rib is arranged on the outer wall of the central tube above the first rib. The outer wall of the air distribution cup is recessed inward to form a convex part on the side wall of the air distribution chamber. The top of the second rib is flush with the top of the convex part. The inner ring honeycomb body is supported on the second rib and the convex part.

[0015] In some embodiments, a first inner decorative ring is arranged at the top of the central tube. The first inner decorative ring fixes the inner ring honeycomb body in the air distribution chamber.

[0016] A first outer decorative ring is arranged at the top of the air distribution cup. The first outer decorative ring fixes the inner ring honeycomb body in the air distribution chamber.

[0017] In some embodiments, upper convex ribs are provided at positions on the outer wall of the diversion pipe close to its upper end. The upper end of the diversion pipe passes through the upper connection hole and is fixed to the bottom wall of the air distribution chamber by reverse riveting, and the upper convex ribs abut against the bottom surface of the air distribution cup.

[0018] In some embodiments, lower convex ribs are provided at positions on the outer wall of the diversion pipe close to its lower end. A hollow convex platform extending upward is provided on the edge of the lower connection hole, and a mounting hole is provided at the top of the hollow convex platform. The lower end of the diversion pipe passes through the mounting hole and is fixed to the inner wall of the hollow convex platform by reverse riveting, and the lower convex ribs abut against the top of the hollow convex platform.

[0019] In some embodiments, the outer ring honeycomb body assembly includes an outer air distribution disc, an outer ring honeycomb body, a second inner decorative ring and a second outer decorative ring, wherein the outer ring honeycomb body is disposed in the outer air distribution disc, and the second inner decorative ring and the second outer decorative ring are disposed on the outer air distribution disc for fixing the outer ring honeycomb body in the outer air distribution disc.

[0020] Another object of the present invention is to provide a gas stove, which has a simple structure and a relatively high thermal efficiency.

[0021] The above object is achieved by the following technical solutions:

[0022] A gas stove having the infrared burner as described above.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects:

[0024] 1. The infrared burner of the present invention includes a burner head, an inner ring honeycomb body assembly and an outer ring honeycomb body assembly, and adopts a split structure, which is simple to manufacture, convenient to install and easy to repair;

[0025] 2. A secondary air supply channel is formed between the inner ring honeycomb body assembly and the outer ring honeycomb body assembly, thereby strengthening air flow, accelerating the convective heat transfer between the high-temperature flame and the air, reducing the surface temperature of the infrared burner, solving the problem of high-temperature flashback, and improving the reliability and safety of the infrared burner during use;

[0026] 3. By providing the secondary air supply channel, the area of the combustion flame holes can be correspondingly reduced, the thermal intensity of the flame holes can be indirectly increased, and the thermal efficiency can be directly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural view of the infrared burner in an embodiment of the present invention;

[0028] Figure 2 is an exploded schematic view of the infrared burner in an embodiment of the present invention;

[0029] Figure 3 is a three-dimensional schematic diagram of the inner ring honeycomb body assembly in the embodiment of the present invention;

[0030] Figure 4 is an exploded schematic diagram of the inner ring honeycomb body assembly in the embodiment of the present invention;

[0031] Figure 5 is a partial exploded view of the inner ring honeycomb body assembly in the embodiment of the present invention;

[0032] Figure 6 is a cross-sectional schematic diagram of the inner ring honeycomb body assembly in the embodiment of the present invention;

[0033] Figure 7 is a three-dimensional schematic diagram of the outer ring honeycomb body assembly in the embodiment of the present invention. Detailed implementation manners

[0034] The following embodiments illustrate the present invention, but the present invention is not limited by these embodiments. Modifying the specific implementation manners of the present invention or equivalently replacing some technical features without departing from the spirit of the present invention scheme shall all be covered within the scope of the technical solution claimed by the present invention.

[0035] Embodiment 1: As Figures 1 to 7 shown, this embodiment provides an infrared burner, which includes a burner head 8, an inner ring honeycomb body assembly 9 and an outer ring honeycomb body assembly 10. An inner ring gas channel 801 and an outer ring gas channel 802 are formed on the burner head 8. The inner ring honeycomb body assembly 9 is detachably arranged on the inner ring gas channel 801, and the outer ring honeycomb body assembly 10 is detachably arranged on the outer ring gas channel 802. A secondary air supply channel 800 is formed between the inner ring honeycomb body assembly 9 and the outer ring honeycomb body assembly 10.

[0036] The infrared burner of this embodiment includes a burner head 8, an inner ring honeycomb body assembly 9 and an outer ring honeycomb body assembly 10, and adopts a split structure, which is simple to manufacture, convenient to install and easy to repair;

[0037] A secondary air supply channel 800 is formed between the inner ring honeycomb body assembly 9 and the outer ring honeycomb body assembly 10, whereby the air flow can be strengthened, the convective heat transfer between the high-temperature flame and the air can be accelerated, thereby reducing the surface temperature of the infrared burner, solving the problem of high-temperature flashback, and improving the reliability and safety of the use of the infrared burner;

[0038] By providing the secondary air supply channel 800, the combustion hole area can be correspondingly reduced, the heat intensity of the holes can be indirectly increased, and the thermal efficiency can be directly improved.

[0039] Preferably, the inner ring honeycomb body assembly 9 includes an inner air distribution disc 91 and an inner ring honeycomb body 5. The inner air distribution disc 91 includes an upper cover assembly and a lower cover assembly. The upper cover assembly includes an air distribution cup 1 and a central tube 2. An air distribution chamber 100 is formed in the air distribution cup 1. A through hole 101 is provided at the center of the bottom wall of the air distribution chamber 100. The bottom of the central tube 2 is connected to the through hole 101. Upper connection holes 102 are circumferentially and spacedly distributed on the bottom wall of the air distribution chamber 100 around the through hole 101. The inner ring honeycomb body 5 is sleeved outside the central tube 2 and installed in the air distribution chamber 100. Preferably, the air distribution cup 1 is a cylindrical cup structure and is made by deep drawing and stamping of a stainless steel thin plate.

[0040] The lower cover assembly includes a gas collecting disc 3 and a plurality of diversion tubes 4. Lower connection holes 301 are circumferentially and spacedly distributed on the gas collecting disc 3. The upper ends of the diversion tubes 4 are connected to the corresponding upper connection holes 102, and the lower ends are connected to the corresponding lower connection holes 301. The diversion tubes 4 connect the inner ring gas channel 801 and the air distribution chamber 100.

[0041] The infrared burner of this embodiment has a simple structure, which is conducive to mass production, so as to achieve the purpose of reducing costs.

[0042] In this embodiment, an air inlet channel 803 is formed at the center of the burner head 8. A hollow diversion part 304 extending downward is provided at the center of the gas collecting disc 3. The diversion part 304 extends into the air inlet channel 803. The diversion part 304 connects the air inlet channel 803 and the gas collecting disc 3. The gas collecting disc 3 is connected to the secondary air supply channel 800. The air located below the burner head 8 can be supplemented to the inner ring honeycomb body assembly 9 and the outer ring honeycomb body assembly 10 through the air inlet channel 803, the gas collecting disc 3 and the secondary air supply channel 800. Thereby, the air flow can be strengthened, the convective heat transfer between the high-temperature flame and the air can be accelerated, the surface temperature of the infrared burner can be reduced, the problem of high-temperature flashback can be solved, and the reliability and safety of the infrared burner during use can be improved.

[0043] Preferably, a first rib 201 is provided on the outer wall of the central tube 2 near its lower end. The lower end of the central tube 2 passes through the through hole 101 and is riveted and fixed to the bottom surface of the air distribution cup 1, and the first rib 201 abuts against the bottom wall of the air distribution chamber 100. Its structure is simple and convenient to manufacture, which is conducive to connecting the central tube 2 and the air distribution cup 1 into one body.

[0044] More preferably, a second rib 202 is provided on the outer wall of the central tube 2 above the first rib 201. The outer wall of the air distribution cup 1 is recessed inward to form a raised portion 103 on the side wall of the air distribution chamber 100. There are multiple raised portions 103, and the raised portions 103 and the upper connection holes 102 are staggered. The top of the second rib 202 is flush with the top of the raised portion 103. Further, an inner ring honeycomb body 5 is provided in the air distribution chamber 100. The inner ring honeycomb body 5 is supported on the second rib 202 and the raised portion 103. Its structure is simple, the design is reasonable and ingenious, which is conducive to the installation and fixation of the inner ring honeycomb body 5.

[0045] Specifically, the central tube 2 is a hollow stainless steel tube. Two ribs are spun at one end thereof, namely the first rib 201 and the second rib 202. The distance between the first rib 201 and the second rib 202 is the same as the height of the raised portion 103 on the cylindrical circumferential surface of the air distribution cup 1. The straight tube part under the first rib 201 of the central tube 2 is inserted from the upper end direction of the air distribution cup 1 to the bottom central circular through hole 101 and then reverse-riveted and flattened, so that the air distribution cup 1 and the central tube 2 are fixedly connected as a whole to form the upper cover assembly of the air distribution plate. After such assembly, the upper end surface of the second rib 202 of the central tube 2 and the top end surface of the raised portion 103 on the cylindrical circumferential surface of the air distribution cup 1 are in the same plane. When the inner ring honeycomb body 5 is installed, the bottom surface of the inner ring honeycomb body 5 is in contact with it and is all in the same plane. The second rib 202 and the raised portion 103 play a role of balanced support.

[0046] In this embodiment, the inner ring honeycomb body 5 is a honeycomb body wound by a metal strip. Its flame hole diameter is 0.7 - φ0.9 mm, its thickness is 8 - 12 mm, and its combustion mode is flameless infrared combustion, and the flame length is short or even there is no flame.

[0047] Or, the inner ring honeycomb body 5 is a honeycomb body sintered by ceramics. Its flame hole diameter is about 1.2 mm, its thickness is about 10 mm, and its combustion mode is flameless infrared combustion, and its flame length is short or even there is no flame.

[0048] Or, the inner ring honeycomb body 5 includes a combustion mesh sheet and a spacer block. The combustion mesh sheet is arranged on the spacer block. Its flame hole diameter is about 1.5 mm, its thickness is about 3 mm, and its combustion mode is atmospheric combustion, and its flame has a certain length.

[0049] Preferably, a first inner decorative ring 6 is provided on the top of the central tube 2. The first inner decorative ring 6 fixes the inner ring honeycomb body 5 in the air distribution chamber 100.

[0050] A first outer decorative ring 7 is provided on the top of the gas separation cup 1, and the first outer decorative ring 7 fixes the inner ring honeycomb body 5 in the gas separation chamber 100. The first inner decorative ring 6 and the first outer decorative ring 7 can improve the overall appearance of the gas separation plate, which is conducive to improving the product grade. In addition, the first inner decorative ring 6 and the first outer decorative ring 7 can fix the inner ring honeycomb body 5 to prevent the inner ring honeycomb body 5 from being easily loosened or falling off.

[0051] In this embodiment, the inner ring honeycomb body 5 is a block-shaped columnar body with a straight through hole in the middle. The hole size matches or is slightly larger than the outer diameter of the central tube 2. The outer diameter of the inner ring honeycomb body 5 matches or is slightly smaller than the inner diameter of the gas separator cup 1. A large number of fire holes are distributed between the cylindrical surface of the inner ring honeycomb body 5 and the straight through hole in the middle.

[0052] Preferably, the first outer decorative ring 7 is a thin-walled cover plate, which is cylindrical, with a short eave folded inward at one end, and its cylindrical inner diameter is tightly matched with the outer diameter of the gas separator cup 1, and the short eave covers the upper end surface of the gas separator cup 1; the first inner decorative ring 6 is a cylindrical thin-walled member, with a short side folded outward at one end, and its cylindrical outer diameter is tightly matched with the inner diameter of the central tube 2, and its folded short side covers the outer edge of the upper end surface of the central tube 2; when assembling, the central cylindrical hole of the inner ring honeycomb body 5 is slid into the gas separator cup 1 of the gas separator disk assembly along the outer cylindrical surface of the central tube 2, so that the lower end surface of the inner ring honeycomb body 5 is aligned with the second convex rib 2 02. The top surface of the raised portion 103 is flat, and the first inner decorative ring 6 is pressed into the central tube 2, and the first outer decorative ring 7 is pressed into the gas dividing cup 1, so that the inner ring honeycomb body 5 can be fixed in the gas dividing chamber 100, and the mixed gas enters the gas dividing chamber 100 of the gas dividing cup 1 from the guide tube 4 around the bottom of the lower cover assembly, and then is ejected from the fire holes of the inner ring honeycomb body 5, ignited and burned, forming a straight flame. When burning, the flame is vertically upward, which reduces the distance between the flame and the bottom of the pot, which is conducive to more heat directly heating the bottom of the pot, thereby improving the utilization rate of heat.

[0053] Preferably, an upper rib 401 is provided on the outer wall of the flow guide tube 4 near its upper end. The upper end of the flow guide tube 4 passes through the upper connecting hole 102 and is fixed to the bottom wall of the gas separation chamber 100 by reverse rivet, and the upper rib 401 abuts against the bottom surface of the gas separation cup 1. It has a simple structure and is easy to manufacture, which is conducive to connecting the flow guide tube 4 and the gas separation cup 1 into one.

[0054] More preferably, a lower rib 402 is provided on the outer wall of the guide tube 4 near its lower end, a hollow boss 302 extending upward is provided on the edge of the lower connecting hole 301, and a mounting hole 303 with a diameter smaller than the diameter of the hollow boss 302 is provided at the top center of the hollow boss 302, and the diameter of the mounting hole 303 is consistent with the diameter of the upper connecting hole 102, and the position is also corresponding. After the lower end of the guide tube 4 passes through the mounting hole 303, it is riveted to the inner wall of the hollow boss 302, and the lower rib 402 rests on the top of the hollow boss 302. It has a simple structure and is easy to manufacture, which is conducive to connecting the guide tube 4 and the gas collecting plate 3 into one.

[0055] Preferably, the gas distribution cup 1 and the gas collecting disc 3 are made by stretching and stamping a metal plate.

[0056] In this embodiment, the gas collecting disc 3 is a disc-shaped thin-walled part, made by stretching and stamping a stainless steel thin plate, with a hollow upper end and a closed lower end. A hollow diversion part 304 is turned outwards in the middle of the closed end. The diversion pipe 4 is a hollow stainless steel straight pipe, and its outer diameter is the same as the diameter of the mounting hole 303 on the gas collecting disc 3 and the upper connection hole 102 at the bottom of the gas distribution cup 1. A convex rib is pressed at each end of the diversion pipe 4, namely the upper convex rib 401 and the lower convex rib 402. The lower end of the diversion pipe 4 is inserted into the mounting hole 303 of the hollow boss 302 from the upper end direction of the gas collecting disc 3. The end face of the lower convex rib 402 of the diversion pipe is flush with the upper end face of the hollow boss 302 and is reverse-riveted and caulked flat. The same is true for the other several diversion pipes. In this way, several diversion pipes 4 can be fixedly connected with the gas collecting disc 3 as a whole to form a lower cover assembly of the gas distribution disc. The upper ends of the diversion pipes 4 of the lower cover assembly of the gas distribution disc are inserted into the upper connection holes 102 at the bottom of the gas distribution cup 1 of the upper cover assembly of the gas distribution disc, so that the end face of the upper convex rib 401 of the diversion pipe 4 is flush with the bottom end face of the gas distribution cup 1 and is reverse-riveted and caulked flat to fix the gas distribution disc assembly of the present invention; finally, nickel-based solder is applied at each reverse-riveted and caulked flat place, and they are put into a vacuum high-temperature furnace together for brazing to form a gas distribution disc with a firm structure.

[0057] As Figure 1 and Figure 2 shown, during assembly, the large and small cylindrical surfaces of the gas collecting disc 3 of the gas distribution disc assembly are in sealing fit with the two cylindrical surfaces of the inner ring cavity of the burner head to form a gas collecting cavity. The gas mixed by the burner head ejector pipe enters the gas collecting cavity of the gas distribution disc from the inner ring cavity of the burner head, and then from the gas collecting cavity through the diversion pipe 4 into the gas distribution chamber 100 formed between the gas distribution cup 1 and the central pipe 2. Under the shielding action of the inner ring honeycomb body 5, a certain static pressure is formed. The mixed gas enters each air passage of the inner ring honeycomb body evenly under the action of the static pressure and burns at the periphery of the inner ring honeycomb body 5.

[0058] The infrared burner provided by the present invention combines stretching, stamping, riveting and brazing of sheet metal parts. The infrared burner made by this method is firm, can withstand high temperature corrosion for a long time, the product is lightweight, cost is saved, and it has strong applicability, is applicable to all gas cookers, has high promotion value and strong versatility.

[0059] More preferably, the outer ring honeycomb body assembly 10 includes an outer air distribution disc 11, an outer ring honeycomb body 12, a second inner decorative ring 13 and a second outer decorative ring 14. The outer ring honeycomb body 12 is arranged inside the outer air distribution disc 11, and the second inner decorative ring 13 and the second outer decorative ring 14 are arranged on the outer air distribution disc 11 to fix the outer ring honeycomb body 12 inside the outer air distribution disc 11. In this embodiment, the outer air distribution disc 11 is a frustum-shaped thin-walled part, made by deep drawing and stamping of a stainless steel plate. The outer ring honeycomb body 12 is a relatively large circular ring plate structure, formed by winding a metal thin strip or sintering ceramics into one body. The outer ring honeycomb body 12 is provided with unequal numbers of gaps or small holes, which are combustion fire holes. The second inner decorative ring 13 and the second outer decorative ring 14 are both circular thin-walled cover plates. The outer ring honeycomb body 12 is inserted into the outer air distribution disc 11, and the second outer decorative ring 14 and the second inner decorative ring 13 are covered and pressed along the outer circumference and the center of the outer air distribution disc 11, thereby completing the assembly of the outer ring honeycomb body assembly 10. The above-mentioned inner ring honeycomb body assembly 9 and outer ring honeycomb body assembly 10 are respectively sleeved on the inner ring gas passage 801 and the outer ring gas passage 802 of the burner 8. The gas reaches the inner ring honeycomb body assembly 9 and the outer ring honeycomb body assembly 10 through the inner ring gas passage 801 and the outer ring gas passage 802 of the burner 8, and flows out and burns through the fire holes of the inner ring honeycomb body 5 and the outer ring honeycomb body 12. Since the inner ring honeycomb body assembly 9 and the outer ring honeycomb body assembly 10 are independently assembled, an annular gap is formed between the inner ring honeycomb body assembly 9 and the outer ring honeycomb body assembly 10 after assembly, which is the secondary air supply channel 800. With such a structure, the following improvements are achieved:

[0060] 1. Due to the use of a split structure and being independent of each other, the assembly is simple and convenient for maintenance.

[0061] 2. Through the added secondary air supply channel 800, the air flow is strengthened, the convective heat transfer between the high-temperature flame and the air is accelerated, thereby reducing the surface temperature of the burner and solving the problem of high-temperature flashback.

[0062] 3. Since the secondary air supply channel 800 is provided and has a cooling effect, the inner and outer ring heat loads can be increased, so that the total heat load reaches more than 3.8 kw. The inner ring load is increased, the regulation ratio is larger, and the firepower regulation is wider, meeting the user experience.

[0063] 4. The split structure solves the independent adjustment of the inner and outer ring fires, and there are independent and obvious inner and outer flames and outer ring flames, making it clearer and more obvious for users to adjust, meeting more cooking needs.

[0064] 5. The inner and outer rings are independent of each other and form a closed system. When switching the firepower, there is no "gas leakage" phenomenon, completely eliminating the hidden danger of gas leakage and making it safer to use.

[0065] 6. Since there is a secondary air supply channel 800, during combustion, the secondary air is supplemented three-dimensionally from the outside, middle, and inside. The air supplement is more uniform, making the combustion more complete, reducing the generation of waste gas.

[0066] 7. Since there is a secondary air supply channel 800, when the area of the combustion plate is equal, the area of the combustion holes is correspondingly reduced, indirectly increasing the thermal intensity of the holes and directly improving the thermal efficiency, saving energy.

[0067] Embodiment 2: Refer to Figures 1 to 7 As shown, this embodiment provides a gas stove with an infrared burner as described in Embodiment 1.

[0068] The gas stove of this embodiment, by adopting the infrared burner as described in Embodiment 1, has the characteristics of simple structure and relatively high thermal efficiency.

[0069] The other components and operations of the gas stove according to this embodiment are known to those of ordinary skill in the art, and will not be elaborated here to save space.

[0070] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An infrared burner, characterized in that, it includes a burner head (8), an inner ring honeycomb body assembly (9) and an outer ring honeycomb body assembly (10), wherein an inner ring gas passage (801) and an outer ring gas passage (802) are formed on the burner head (8), the inner ring honeycomb body assembly (9) is detachably arranged on the inner ring gas passage (801), the outer ring honeycomb body assembly (10) is detachably arranged on the outer ring gas passage (802), and a secondary air supplement passage (800) is formed between the inner ring honeycomb body assembly (9) and the outer ring honeycomb body assembly (10); The inner ring honeycomb body assembly (9) includes an inner air distribution plate (91), wherein the inner air distribution plate (91) includes: An upper cover assembly, including an air distribution cup (1) and a central tube (2), an air distribution chamber (100) is formed in the air distribution cup (1), a through hole (101) is arranged at the center of the bottom wall of the air distribution chamber (100), the bottom of the central tube (2) is connected to the through hole (101), and upper connection holes (102) are arranged on the bottom wall of the air distribution chamber (100) at intervals along the circumference around the through hole (101); A lower cover assembly, including a gas collection plate (3) and a plurality of diversion tubes (4), lower connection holes (301) are arranged on the gas collection plate (3) at intervals along the circumference, the upper ends of the diversion tubes (4) are connected to the corresponding upper connection holes (102), the lower ends are connected to the corresponding lower connection holes (301), the diversion tubes (4) communicate the inner ring gas passage (801) with the air distribution chamber (100), and the gas collection plate (3) communicates with the secondary air supplement passage (800); The air distribution cup (1) and the gas collection plate (3) are made by stretching and stamping a metal plate.

2. An infrared burner according to claim 1, characterized in that, the inner ring honeycomb body assembly (9) further includes an inner ring honeycomb body (5), and the inner ring honeycomb body (5) is sleeved outside the central tube (2) and installed in the air distribution chamber (100).

3. An infrared burner according to claim 1, characterized in that, an air inlet passage (803) is formed at the center of the burner head (8), a hollow diversion part (304) extending downward is arranged at the center of the gas collection plate (3), the diversion part (304) extends into the air inlet passage (803), and the diversion part (304) communicates the air inlet passage (803) with the gas collection plate (3).

4. An infrared burner according to claim 2, characterized in that, a first rib (201) is arranged on the outer wall of the central tube (2) near its lower end, the lower end of the central tube (2) passes through the through hole (101) and is riveted and fixed to the bottom surface of the air distribution cup (1), and the first rib (201) abuts against the bottom wall of the air distribution chamber (100).

5. An infrared burner according to claim 4, characterized in that, Above the first rib (201), a second rib (202) is provided on the outer wall of the central tube (2). The outer wall of the gas distribution cup (1) is recessed inward to form a protruding portion (103) on the side wall of the gas distribution chamber (100). The top of the second rib (202) is flush with the top of the protruding portion (103). The inner ring honeycomb body (5) is supported on the second rib (202) and the protruding portion (103).

6. An infrared burner according to claim 2, wherein, a first inner decorative ring (6) is provided at the top of the central tube (2), and the first inner decorative ring (6) fixes the inner ring honeycomb body (5) in the gas distribution chamber (100); a first outer decorative ring (7) is provided at the top of the gas distribution cup (1), and the first outer decorative ring (7) fixes the inner ring honeycomb body (5) in the gas distribution chamber (100).

7. An infrared burner according to any one of claims 2 to 6, wherein, an upper rib (401) is provided on the outer wall of the flow guide tube (4) near its upper end. The upper end of the flow guide tube (4) passes through the upper connection hole (102) and is reverse-riveted and fixed to the bottom wall of the gas distribution chamber (100), and the upper rib (401) abuts against the bottom surface of the gas distribution cup (1).

8. An infrared burner according to claim 7, wherein, a lower rib (402) is provided on the outer wall of the flow guide tube (4) near its lower end. A hollow boss (302) extending upward is provided on the edge of the lower connection hole (301). An installation hole (303) is provided at the top of the hollow boss (302). The lower end of the flow guide tube (4) passes through the installation hole (303) and is reverse-riveted and fixed to the inner wall of the hollow boss (302), and the lower rib (402) abuts against the top of the hollow boss (302).

9. An infrared burner according to any one of claims 1 to 6, wherein, the outer ring honeycomb body assembly (10) includes an outer gas distribution disc (11), an outer ring honeycomb body (12), a second inner decorative ring (13) and a second outer decorative ring (14). The outer ring honeycomb body (12) is arranged in the outer gas distribution disc (11). The second inner decorative ring (13) and the second outer decorative ring (14) are arranged on the outer gas distribution disc (11) for fixing the outer ring honeycomb body (12) in the outer gas distribution disc (11).

10. A gas cooker, wherein, it has an infrared burner according to any one of claims 1 to 9.

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