Combustor and gas stove

Abstract

The invention relates to the technical field of stoves, and provides a combustor and a gas stove. The fire distributor is arranged at the top of the base, and the fire distributor is provided with an injection cavity with an inlet; the nozzle is arranged at the top of the base and is opposite to the inlet at an interval so as to inject fuel gas into the injection cavity to form negative pressure; the fan is communicated with the lower end of the air guide structure and arranged on the lower side of the base, the upper end of the air guide structure extends to the top of the base, and the inlet is communicated with the external atmosphere and the upper end of the air guide structure; and the external atmosphere is introduced through negative pressure formed in the injection cavity, and air is supplemented into the injection cavity through the air guide structure. The fan is utilized to blow air into the injection cavity through the air guide structure, primary air is supplemented, the combustion efficiency is improved, the lower end of the air guide structure and the fan are hidden in the cavity of the bottom shell of the gas stove, the space is reasonably utilized, and the appearance is attractive.

Description

Technical Field

[0001] This invention relates to the field of stove technology, and more particularly to a burner and a gas stove. Background Technology

[0002] Top-draft gas stoves, a common cooking appliance in kitchens, work by injecting gas at high speed through nozzles above the cooktop. This creates a negative pressure effect within the burner's injector tube, drawing in outside air as primary air for combustion. Because this design directly utilizes the air above the cooktop as its gas source, it is considered to have the advantage of avoiding the risk of backfire.

[0003] However, existing top-intake gas stoves have significant technical defects: because the injector tube can only passively draw in air by relying on the negative pressure generated when the nozzle injects gas, its primary air supply is strictly limited. Specifically, the nozzle orifice diameter, gas injection pressure, and injector tube structure design jointly determine the air intake capacity, but in actual operation, there is a dynamic matching problem between the gas injection speed and the air intake efficiency: when the gas flow rate increases, insufficient negative pressure suction causes the primary air volume to not increase proportionally, resulting in an excessively high gas content in the mixture, leading to incomplete combustion, low thermal efficiency, and excessive emissions of harmful gases such as carbon monoxide and nitrogen oxides. Summary of the Invention

[0004] To solve the above-mentioned technical problems, or at least partially solve them, the first objective of this invention is to provide a burner that adds an air guide structure and a fan to the upper air intake burner. The fan blows air into the inlet of the upper air intake burner through the air guide structure to supplement primary air and improve combustion efficiency. Furthermore, the upper end of the air guide structure is located on the burner above the panel, while the lower end of the air guide structure and the fan are hidden inside the bottom shell cavity of the gas stove, making reasonable use of space and improving the appearance.

[0005] The second objective of this invention is to provide a gas stove.

[0006] The first aspect of the present invention provides a burner, comprising: Base; A fire distributor is located on top of the base, and the fire distributor has an ejector chamber with an inlet. A nozzle is located at the top of the base, and the nozzle is positioned opposite to the inlet at a distance to inject gas into the ejector chamber to create a negative pressure. An air guide structure and a fan, wherein the fan is connected to the lower end of the air guide structure to blow air into the air guide structure; The lower end of the air guide structure and the fan are located on the lower side of the base. The upper end of the air guide structure extends to the top of the base. The inlet is connected to the external atmosphere and the upper end of the air guide structure so as to introduce the external atmosphere through the negative pressure formed in the ejection cavity and to replenish the air into the ejection cavity through the air guide structure.

[0007] In the above technical solution, the burner is equipped with a fan and an air guide structure. The fan is hidden under the base and supplies air upward through the air guide structure. This avoids occupying the space above the panel and increases the primary air intake through forced air supply, so that the gas can be fully burned, reducing the situation of incomplete combustion caused by insufficient air, improving combustion stability. In addition, the overall structure is compact, the appearance is simple, and it is easy to maintain.

[0008] In some embodiments, the upper end of the air guide structure is located at the gap between the nozzle and the inlet, and the air guide structure has a connecting pipe that avoids the nozzle from injecting gas into the inlet; The upper end of the air guide structure is provided with a forced air outlet facing the inlet, and the forced air outlet is connected to the interior of the air guide structure.

[0009] In the above technical solution, the upper end of the air guide structure is embedded in the gap between the nozzle and the inlet. Through the coordinated design of the connecting pipe and the forced air outlet, it can make full use of the internal space of the stove, ensure that the gas injection path is unobstructed, and achieve directional replenishment of primary air, significantly improving the uniformity of combustion. Moreover, it can meet the high-load combustion requirements without increasing the size of the stove.

[0010] In some embodiments, the inlet is located at the bottom of the fire distributor, the inlet is oriented toward the outer periphery of the fire distributor, and is spaced apart from the bottom outer periphery of the fire distributor to form an installation space; The nozzle is located on the outer periphery of the installation space, and the upper end of the air guide structure is installed inside the installation space.

[0011] In the above technical solution, by placing the inlet on the outer periphery of the bottom of the burner and using the gap between this area and the nozzle to form an installation space, the upper part of the air guide structure can be compactly embedded inside the stove without occupying additional vertical space; at the same time, the overall height of the burner is reduced, making the stove structure lighter and thinner.

[0012] In some embodiments, the nozzle and the inlet are respectively installed at both ends of the connecting pipe. The upper end of the air guide structure is also integrated with an independent air intake pipe, which connects the external atmosphere and the inlet to eject primary air.

[0013] In the above technical solution, by integrating the connecting pipe and the air intake pipe into the air guide structure, a dual air supply mode of forced air intake and natural air intake is achieved in a small space. It draws in the outside atmosphere through the air intake pipe and supplements the air with a fan, thus saving the internal space of the stove.

[0014] In some embodiments, the air guide structure is provided with an installation part on the side opposite to the inlet, the installation part is plugged into the inlet, and the connecting pipe, the air duct and the forced air outlet of the air guide structure all pass through the opposite side of the installation part and the inlet; And / or, the mounting portion is one or a combination of two of the following: a protrusion and a recess.

[0015] In the above technical solution, by integrating the installation part into the air guide structure, it is convenient to connect and install with the inlet. The outlets of the connecting pipe, the air duct, and the forced air outlet are concentrated and integrated into a single installation part. After the installation part is assembled with the inlet, the connecting pipe, the air duct, and the forced air outlet form a through-type centralized assembly structure with the inlet. This not only integrates the functions of multiple pipelines through a single interface, improving assembly efficiency, but also optimizes the internal space layout of the stove by reducing the number of pipe intersections and interfaces, achieving a balance between structural compactness and ease of assembly.

[0016] In some embodiments, both the connecting pipe and the air intake pipe extend laterally through the opposite side walls of the air guide structure, and the air intake pipe is located on the outer periphery of the connecting pipe.

[0017] In the above technical solution, the single transverse pipeline layout reduces airflow turning resistance and improves mixing efficiency; the air intake pipe is integrated into the outer periphery of the connecting pipe to form a double-layer structure, which saves internal space of the air guide structure and enhances the air ejection effect.

[0018] In some embodiments, the fire distributor includes a fire distribution plate having multiple independent gas chambers and multiple ejector tubes having ejector chambers. The multiple ejector tubes are disposed at the bottom of the fire distribution plate. One end of each ejector tube is connected to one of the gas chambers, and the other end is provided with the inlet. The installation space is formed by a gap between the other end of the ejector tube and the edge of the fire distribution plate; And / or, the base is provided with a nozzle post opposite to the inlet, the nozzle post is located below the outer peripheral edge of the fire distribution plate, and the nozzle is located on the nozzle post.

[0019] In the above technical solution, the ejector tube is placed at the bottom of the flame distribution plate, and there is a gap between its other end and the edge of the flame distribution plate to form an installation space. By placing the upper end of the air guide structure in this installation space, the integrated layout of the air guide structure and the flame distributor is achieved, reducing the space occupied by the internal pipes of the stove. At the same time, the openness of the installation space ensures the precise connection between the upper end of the air guide structure and the inlet of the ejector tube, ensuring the guidance of the airflow channel. Ultimately, while improving assembly efficiency, the utilization rate of the internal space of the stove is optimized, making the structure more compact and maintenance more convenient.

[0020] In some embodiments, the top of the upper end of the air guide structure is provided with one of a plug-in groove or a plug-in strip, and the bottom wall of the fire distribution plate is provided with the other of a plug-in groove or a plug-in strip, for plugging and installing with the air guide structure.

[0021] In the above technical solution, the air guide structure is fixed to the top of the base through its bottom wall, while its top wall is mechanically connected to the fire distribution plate through a plug-in structure, forming a two-way fixed mode, which effectively avoids displacement of the air guide structure and improves the positioning accuracy of the air guide structure, so as to facilitate installation with the importer.

[0022] In some embodiments, the base includes a horizontally arranged support plate and a plurality of support feet, the plurality of support feet being connected to the bottom wall of the support plate; The outer periphery of the support plate is provided with an inwardly recessed clearance opening. The upper end of the air guide structure is installed on the top wall of the support plate, and the lower end of the air guide structure extends through the clearance opening to the bottom of the support plate.

[0023] In the above technical solution, by setting an inwardly recessed clearance on the outer periphery of the support plate, the lower end of the air guide structure can be inserted and extended to the bottom of the support plate, which effectively reduces the space occupied by the air guide structure in the lateral direction, making the overall structure of the burner more compact and easier to adapt to limited space during installation. At the same time, it avoids interference between the air guide structure and other components due to insufficient lateral space, thereby improving the installation convenience and space utilization of the equipment.

[0024] A second aspect of the present invention provides a gas stove, comprising a bottom shell having a cooking cavity, a panel, and a burner as described above. The panel closes the top opening of the stove cavity. The lower end of the base is fixed to the bottom shell and the upper end passes through the panel. The lower end of the air guide structure and the fan are located inside the stove cavity. The upper end of the air guide structure passes through the base and is located above the panel. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of a burner according to the present invention; Figure 2 This is the present invention. Figure 1 A diagram from another angle; Figure 3 This is the present invention. Figure 2 A cross-sectional view along the AA direction; Figure 4 This is the present invention. Figure 3 A schematic diagram from a three-dimensional perspective; Figure 5 This is a schematic diagram of an air guiding structure and a fan according to the present invention; Figure 6 This is the present invention. Figure 2 Cross-sectional view along the BB direction; Figure 7 This is the present invention. Figure 6 Enlarged schematic diagram of the structure at point A; Figure 8 This is the present invention. Figure 6 A schematic diagram from a three-dimensional perspective; Figure 9 This is the present invention. Figure 8 Enlarged schematic diagram of the structure at point B; Figure 10 This is a schematic diagram of the structure of a burner according to the present invention.

[0028] in, 1. Base; 11. Support plate; 111. Clearance opening; 112. First mounting hole; 12. Support foot; 2. Flame distributor; 21. Flame distributor plate; 211. Connecting strip; 212. Locking protrusion; 213. Inner ring pipe; 214. Outer ring pipe; 22. Ejector tube; 221. Inlet; 222. Ejector chamber; 3. Nozzle column; 4. Nozzle; 5. Air guide structure; 51. Air guide duct; 511. Protrusion; 5111. Cavity; 512. Recess; 513. Forced air outlet; 514. Insertion groove; 515. Second mounting hole; 52. Connecting pipe; 53. Air duct; 6. Fan; 61. Fan housing; 7. Flame cap assembly; 71. Inner ring flame cap; 72. Outer ring flame cap. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of the present invention, the solutions of the present invention will be further described below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention, but the invention may also be practiced in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the invention, and not all embodiments.

[0031] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0032] An embodiment of the present invention provides a burner, which is an upward air intake burner with forced air blowing function. It uses the negative pressure formed by gas injection to draw in primary air, and then forces secondary air to be supplemented by a fan to improve combustion efficiency.

[0033] like Figures 1 to 10 As shown, the burner includes a base 1, a flame distributor 2, a nozzle 4, an air guide structure 5, and a fan 6.

[0034] The base 1 is the main support of the gas stove, located below the control panel. The top of the base 1 supports the burner 2 and the nozzle 4. The burner 2 is located on the upper part of the base 1 and has an injection chamber 222 with an inlet 221, used to mix the gas with primary air and distribute it to the burner holes for combustion. The nozzle 4 is located on the upper part of the base 1, and is spaced apart from the inlet 221 to create negative pressure by injecting gas at high speed into the injection chamber 222.

[0035] The air guide structure 5 is a hollow air guide duct 51. The lower end of the air guide structure 5 is connected to the fan 6 to blow air into the air guide structure 5 via the fan 6. The lower end of the air guide structure 5 and the fan 6 are located on the lower side of the base 1. The upper end of the air guide structure 5 extends to the upper part of the base 1. The inlet 221 is connected to the external atmosphere (the external atmosphere above the panel), and uses the negative pressure generated in the ejector cavity 222 to draw in external atmosphere as primary air. Furthermore, the inlet 221 is also connected to the upper end of the air guide structure 5 to blow air into the ejector cavity 222 through the air guide structure 5 to replenish the primary air.

[0036] In this embodiment, the burner is equipped with a fan 6 and an air guide structure 5. The fan 6 is hidden under the base 1 and supplies air upward through the air guide structure 5. This avoids occupying the space above the panel and increases the primary air intake through forced air supply, so that the gas can be fully burned, reducing the situation of incomplete combustion caused by insufficient air, improving combustion stability. In addition, the overall structure is compact, the appearance is simple, and it is easy to maintain.

[0037] In the above embodiments, the burner of the gas stove includes a gas injection process and a forced air supply process. Gas injection process: The nozzle 4 is controlled to inject gas at high speed, creating a negative pressure within the injection chamber 222. External atmosphere is drawn into the injection chamber 222 through the inlet 221 of the burner 2 as initial primary air. Forced air supply process: After the fan 6 is started, the air below the base 1 is transported to the inlet 221 of the burner 2 through the air guide structure 5, providing additional primary air. In actual use, only the gas injection process can be controlled to occur; alternatively, the forced air supply process can be performed during the gas injection process.

[0038] The lower part of the base 1 forms a cavity, and the lower end of the air guide structure 5 and the fan 6 are located in the cavity of the base 1. The upper end of the air guide structure 5 can extend beyond the edge of the base 1 to the top of the base 1, or the upper end of the air guide structure 5 can pass through the base 1 and extend to the top of the base 1.

[0039] The air guide structure 5 is detachably mounted on the top wall of the base 1.

[0040] Preferably, the axis of nozzle 4 is coaxial with the axis of inlet 221.

[0041] Furthermore, the fan 6 includes a fan housing 61 and an impeller, with the impeller disposed within the fan housing 61. The air outlet of the fan housing 61 is connected to the air inlet of the air guide duct 51. The air inlet of the fan housing 61 is positioned opposite to the impeller, and the impeller draws air from the air inlet of the fan housing 61 and blows it into the air guide duct 51, and then into the ejector chamber 222.

[0042] like Figures 2 to 4 As shown, the upper end of the air guide structure 5 is located at the gap between the nozzle 4 and the inlet 221, which is the axial gap area between the nozzle 4 and the inlet 221 of the distributor 2. The air guide structure 5 has a connecting pipe 52 that avoids the nozzle 4 from injecting gas into the inlet 221. The axis of the connecting pipe 52 is consistent with the injection direction of the nozzle 4. The upper end of the air guide structure 5 is provided with a forced air outlet 513 facing the inlet 221. The forced air outlet 513 is connected to the air guide pipe 51 and can force air into the inlet 221 through the forced air outlet 513 to replenish the primary air.

[0043] In this embodiment, the upper end of the air guide structure 5 is embedded in the gap between the nozzle 4 and the inlet 221. Through the coordinated design of the connecting pipe and the forced air outlet, the internal space of the stove is fully utilized to ensure that the gas injection path is unobstructed, and the directional replenishment of primary air can be achieved, which significantly improves the uniformity of combustion. Moreover, it can meet the high-load combustion requirements without increasing the size of the stove.

[0044] In one embodiment, the upper end of the air guide structure 5 is spaced apart from the inlet 221, and the inlet 221 is directly connected to the outside atmosphere. When the nozzle draws in air, the inlet 221 can directly draw in the outside atmosphere.

[0045] Another implementation scheme is, as Figures 3 to 4 As shown, one end of the connecting pipe 52 is connected to the nozzle 4, and the other end is connected to the inlet 221. An independent air intake pipe 53 is also integrated at the upper end of the air guide structure 5. The air intake pipe 53 is independent of both the connecting pipe 52 and the air guide pipe 51. The air intake pipe 53 connects to the external atmosphere and the inlet 221 to provide primary air by ejection.

[0046] In this embodiment, by integrating the connecting pipe 52 and the air intake pipe 53 on the air guide structure 5, a dual air supply mode of forced air intake and natural air intake is realized in a small space. The external atmosphere is drawn out through the air intake pipe 53, and the air is supplemented by the fan 6, thus saving the internal space of the stove.

[0047] In the above embodiments, the air intake duct 53 is a long and slender tubular structure, such as a straight duct or a curved duct. One end of the air intake duct 53 has an air inlet and is connected to the outside atmosphere. The other end of the air intake duct 53 has an air outlet and is connected to the inlet 221 of the ejector cavity 222. The air outlet of the air intake duct 53 is located on the side wall of the air guide structure 5 opposite to the inlet 221. The air inlet of the air intake duct 53 is located on the side wall of the air guide structure 5 away from the inlet 221, or on the top wall of the air guide structure 5.

[0048] like Figures 5 to 9 As shown, the air guide structure 5 has an installation part on the side opposite to the inlet 221, and the installation part is plugged into the inlet 221. The connecting pipe 52, the air duct 53, and the forced air outlet 513 of the air guide structure 5 all pass through the side opposite to the installation part and the inlet 221.

[0049] In this embodiment, by integrating the mounting part on the air guide structure 5, it is convenient to connect and install with the inlet 221. The outlets of the connecting pipe 52, the air intake pipe 53, and the forced air outlet 513 are centrally integrated into a single mounting part. After the mounting part is assembled with the inlet 221, the connecting pipe 52, the air intake pipe 53, and the forced air outlet 513 form a through-type centralized assembly structure with the inlet 221. This not only integrates the functions of multiple pipelines through a single interface, improving assembly efficiency, but also optimizes the internal space layout of the stove by reducing the number of pipe intersections and interfaces, achieving a balance between structural compactness and ease of assembly.

[0050] The installation unit is equipped with multiple forced air outlets 513, and multiple forced air outlets 513 and multiple air ducts 53 are arranged alternately in the circumferential direction.

[0051] The mounting portion is one or a combination of two of the following: a protrusion 511 and a recess 512. The mounting portion is complementary in shape to the inlet 221, enabling screwless quick assembly while ensuring a tight seal.

[0052] The number of connecting pipes 52 is at least two, and the ignition distributor 2 is provided with an ejector chamber 222 that matches the number of connecting pipes 52. Each connecting pipe 52 is provided with at least one bleed air pipe 53.

[0053] Preferably, there are two nozzles 4. The ejector chamber 222 includes a first ejector chamber and a second ejector chamber spaced apart and oriented in the same direction on the flame distributor 2, wherein the first ejector chamber connects to the outer annular gas chamber, and the second ejector chamber connects to the inner annular gas chamber. The connecting pipe 52 includes a first connecting pipe and a second connecting pipe arranged laterally at intervals on the air guide structure 5. The bleed air pipe 53 includes a first bleed air pipe and a second bleed air pipe. The first bleed air pipe is located near the first connecting pipe, and both are connected to the first ejector chamber. The second bleed air pipe is located near the second connecting pipe, and both are connected to the second ejector chamber.

[0054] The first connecting pipe passes through the central area of ​​the protrusion 511, and two first air intake pipes pass through the protrusion 511 and are circumferentially spaced around the outer periphery of the first connecting pipe. The protrusion 511 is provided with two sets of forced air outlets 513, each set having three forced air outlets 513. The two sets of forced air outlets 513 and the two air intake pipes 53 are alternately arranged circumferentially around the protrusion 511. The protrusion 511 is inserted into the inlet 221 of the first ejection chamber.

[0055] The second connecting pipe penetrates the central area of ​​the recess 512, and two second air intake pipes penetrate the recess 512, circumferentially spaced around the outer periphery of the second connecting pipe. The recess 512 is provided with two sets of forced air outlets 513, each set having three forced air outlets 513. The two sets of forced air outlets 513 and the two air intake pipes 53 are alternately arranged circumferentially around the recess 512. The recess 512 is fitted onto the inlet end of the first ejector cavity.

[0056] The protrusion 511 can be a rectangular boss, a circular boss, or other shapes that can be inserted into the inlet 221. Preferably, the protrusion 511 is a circular boss.

[0057] Both the connecting pipe 52 and the air intake pipe 53 extend laterally through the opposite side walls of the air guide structure 5. The air intake pipe 53 is located on the outer periphery of the connecting pipe 52.

[0058] The air intake pipe 53 is located on the outer wall of the connecting pipe 52.

[0059] In this embodiment, the single transverse pipeline layout reduces airflow turning resistance and improves mixing efficiency; the air intake pipe 53 is integrated into the outer periphery of the connecting pipe 52 to form a double-layer structure, which saves internal space of the air guide structure 5 and enhances the air ejection effect.

[0060] Inlet 221 is located at the bottom of the flame distributor 2. Ejector chamber 222 extends laterally at the bottom of the flame distributor 2. Inlet 221 is positioned towards the outer periphery of the flame distributor 2 and is spaced apart from the outer periphery of the bottom of the flame distributor 2 to form an installation space. Nozzle 4 is located on the outer periphery of the installation space, and the upper end of the air guide structure 5 is installed within the installation space. The inner diameter of the air duct 53 is smaller than the inner diameter of the connecting duct 52.

[0061] In this embodiment, by placing the inlet 221 on the outer periphery of the bottom of the burner 2 and using the gap between this area and the nozzle 4 to form an installation space, the upper end of the air guide structure 5 can be compactly embedded inside the stove without occupying additional vertical space; at the same time, the overall height of the burner is reduced, making the stove structure lighter and thinner.

[0062] like Figures 9 to 10 As shown, the bottom wall of the air guide structure 5 is detachably connected to the top wall of the base 1 via a connector. Specifically, the connector is a screw or bolt, and it is fixed to the second mounting hole 515 on the bottom wall of the air guide structure 5 and the first mounting hole 112 on the top wall of the base 1. Alternatively, the connector includes a snap-fit ​​and a slot (not shown in the figure), one of which is located on the bottom wall of the air guide structure 5 and the other on the top wall of the base 1.

[0063] like Figure 10 As shown, the ignition distributor 2 includes an ignition plate 21 with multiple independent gas chambers and multiple ejector tubes 22 with ejector chambers 222. The ejector tubes 22 are located at the bottom of the ignition plate 21. One end of each ejector tube 22 is connected to a corresponding gas chamber, and the other end is provided with an inlet 221. There is a gap between the other end of each ejector tube 22 and the edge of the ignition plate 21 to form an installation space.

[0064] In this embodiment, the ejector tube 22 is placed at the bottom of the flame distribution plate 21, and there is a gap between its other end and the edge of the flame distribution plate 21 to form an installation space. By placing the upper end of the air guide structure 5 in this installation space, the integrated layout of the air guide structure 5 and the flame distributor 2 is realized, reducing the space occupied by the internal pipes of the stove. At the same time, the openness of the installation space ensures the precise docking of the upper end of the air guide structure 5 and the inlet 221 of the ejector tube 22, ensuring the guidance of the airflow channel. Ultimately, while improving assembly efficiency, the utilization rate of the internal space of the stove is optimized, making the structure more compact and maintenance more convenient.

[0065] The base 1 is provided with a nozzle post 3 opposite to the inlet 221, and the nozzle post 3 is located below the outer peripheral edge of the fire distribution plate 21. The nozzle 4 is located on the nozzle post 3.

[0066] like Figure 4 and Figure 8As shown, the burner includes a burner cap assembly 7. The burner cap assembly 7 is disposed on the burner distributor 2, and the two cooperate to form a combustion gas chamber communicating with the ejector chamber 222. The burner cap assembly 7 includes an inner ring burner cap 71 and an outer ring burner cap 72. The burner distributor 21 includes an inner ring pipe 213 and an outer ring pipe 214, and the inner ring pipe 213 is assembled and communicated with the inner ring burner cap 71, and the outer ring pipe 214 is assembled and communicated with the outer ring burner cap 72.

[0067] like Figures 5 to 9 As shown, the top of the upper end of the air guide structure 5 is provided with one of the insertion groove 514 or the insertion strip 211, and the bottom wall of the fire distribution plate 21 is provided with the other of the insertion groove 514 or the insertion strip 211, so as to be inserted and installed with the air guide structure 5.

[0068] In this embodiment, the air guide structure 5 is fixed to the top of the base 1 through its bottom wall, and its top wall is mechanically connected to the fire distribution plate 21 through a plug-in structure, forming a two-way fixed mode, which effectively prevents the air guide structure 5 from shifting and can also improve the positioning accuracy of the air guide structure 5, so as to facilitate installation with the inlet 221.

[0069] Preferably, the top of the upper end of the air guide structure 5 is provided with a downwardly recessed insertion groove 514, and the bottom wall of the fire distribution plate 21 is provided with a protruding insertion strip 211. The insertion groove 514 passes through the opposite side walls of the air guide structure 5 and extends in the same direction as the connecting pipe 52.

[0070] like Figure 10 As shown, the top of the protrusion 511 is provided with a cavity 5111, and the bottom wall of the fire distribution plate 21 is provided with a locking protrusion 212 that matches and is fitted with the cavity 5111. The stability of the assembly of the air guide structure 5 and the fire distributor 2 is further improved by locking the locking protrusion 212 with the cavity 5111.

[0071] The base 1 includes a horizontally arranged support plate 11 and multiple support feet 12. The multiple support feet 12 are connected to the bottom wall of the support plate 11. The outer peripheral edge of the support plate 11 is provided with an inwardly recessed clearance opening 111, and the upper end of the air guide structure 5 is mounted on the top wall of the support plate 11. The lower end of the air guide structure 5 extends through the clearance opening 111 to the bottom of the support plate 11.

[0072] In this embodiment, an inwardly recessed clearance opening 111 is provided on the outer periphery of the support plate 11, which allows the lower end of the air guide structure 5 to pass through and extend to the bottom of the support plate 11. This effectively reduces the space occupied by the air guide structure 5 in the lateral direction, making the overall structure of the burner more compact and easier to adapt to limited space during installation. At the same time, it avoids interference between the air guide structure 5 and other components due to insufficient lateral space, thereby improving the installation convenience and space utilization of the equipment.

[0073] The clearance port 111 is positioned opposite to the axial gap between the inlet 221 and the nozzle 4.

[0074] The air duct 51 includes a first section, a second section, and a third section connected in sequence. The first section extends laterally on the support plate 11. The second section bends downward from the first section and extends through the clearance opening 111 to the same height as the support foot 12. The third section extends laterally from the second section and connects to the fan housing 61.

[0075] The cross-section of the air duct 51 is rectangular, circular, or other shapes. The connecting duct 52 and the air intake duct 53 are integrated into the first duct section. The air duct 51 is a Z-shaped duct.

[0076] A second aspect of the present invention provides a gas stove, comprising a bottom shell having a cooking cavity, a panel, and a burner as described above.

[0077] The panel seals the top opening of the stove cavity, the base is located inside the stove cavity of the bottom shell, and the support feet are fixed to the bottom wall of the stove cavity. The lower end of the air guide structure and the fan are located on the bottom wall of the stove cavity. The upper end of the air guide structure passes through the base and is located above the panel.

[0078] The gas stove provided in this embodiment of the invention includes the burner of any of the above embodiments, and therefore has the beneficial effects of the burner of any of the above embodiments, which will not be repeated here.

[0079] A gas stove also includes a drip tray, ignition device, knobs, and burner grates. Mounting holes are provided on the control panel corresponding to the burner positions. The drip tray is typically a round or square stainless steel or enamel plate used to collect spilled liquids such as soup and oil during cooking. The drip tray is located within the mounting holes. The burner and flame spreader assembly are located above the drip tray, i.e., above the control panel.

[0080] The knob is mounted on the front of the panel and connected to the control valve. Turning the knob turns on the gas. At the same time, the ignition device is located between the outer and inner ring burner caps. When the user turns the knob to turn on the gas, the ignition device generates a high-voltage pulse current, which causes the ignition needle to generate an electric spark, igniting the gas sprayed from the burner.

[0081] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0082] The above are merely specific embodiments of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to these embodiments, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A burner, characterized by The burner comprises: a base; a burner, provided on the top of the base, the burner having an injection cavity with an inlet; a nozzle, provided on the top of the base, the nozzle being oppositely arranged with the inlet to inject gas into the injection cavity to form negative pressure; a wind guide structure and a fan, the fan being in communication with the lower end of the wind guide structure to blow air into the wind guide structure; the lower end of the wind guide structure and the fan being provided on the lower side of the base, the upper end of the wind guide structure extending to the top of the base, the inlet being in communication with the external atmosphere and the upper end of the wind guide structure to introduce the external atmosphere into the injection cavity through the negative pressure formed in the injection cavity and to supplement air into the injection cavity through the wind guide structure.

2. The burner according to claim 1, wherein the upper end of the wind guide structure is provided at the interval between the nozzle and the inlet, the wind guide structure having a communication channel to avoid the nozzle injecting gas to the inlet; the upper end of the wind guide structure is provided with a forced air outlet towards the inlet, the forced air outlet being in communication with the inside of the wind guide structure.

3. The burner according to claim 1, wherein the inlet is provided on the bottom of the burner, the inlet being arranged towards the peripheral direction of the burner and being arranged at the interval with the peripheral side of the bottom of the burner to form a mounting space; the nozzle is located on the peripheral side of the mounting space, and the upper end of the wind guide structure is mounted in the mounting space.

4. The burner according to claim 2, wherein the two ends of the communication channel are respectively mounted with the nozzle and the inlet, the upper end of the wind guide structure is further integrated with an independent air induction channel, the air induction channel being in communication with the external atmosphere and the inlet.

5. The burner according to claim 4, wherein the side opposite to the inlet of the wind guide structure is provided with a mounting portion, the mounting portion being in plug-in connection with the inlet, the communication channel, the air induction channel and the forced air outlet of the wind guide structure all penetrating the opposite faces of the mounting portion and the inlet; and / or, the mounting portion is one or a combination of the convex portion and the concave portion.

6. The burner according to any one of claims 4-5, wherein the communication channel and the air induction channel both transversely penetrate the opposite two side walls of the wind guide structure, and the air induction channel is provided on the outer periphery of the communication channel.

7. The burner according to claim 3, wherein the burner comprises a burner disc having a plurality of independent gas cavities and a plurality of injection pipes having injection cavities, the plurality of injection pipes being provided on the bottom of the burner disc, one end of the injection pipe being in one-to-one communication with the gas cavity, and the other end being provided with the inlet; there is a spacing between the other end of the injection pipe and the edge of the burner disc to form the mounting space; and / or, the base is provided with a nozzle column opposite to the inlet, the nozzle column being provided below the outer peripheral edge of the burner disc, and the nozzle being provided on the nozzle column.

8. The burner according to claim 7, wherein The top of the upper end of the air guide structure is provided with one of an insertion slot or an insertion strip, and the bottom wall of the fire plate is provided with the other one of the insertion slot or the insertion strip to be inserted and mounted with the air guide structure.

9. The burner according to any one of claims 1-5, characterized in that, The base comprises a support plate arranged transversely and a plurality of support legs connected to the bottom wall of the support plate; The outer peripheral edge of the support plate is provided with an inwardly recessed avoiding opening, the upper end of the air guide structure is mounted on the top wall of the support plate, and the lower end of the air guide structure extends to below the support plate through the avoiding opening.

10. A gas hob, characterized in that The cooking appliance comprises a bottom shell having a stove cavity, a panel and the burner according to any one of claims 1-9, The panel closes the top opening of the stove cavity, the lower end of the base is fixed with the bottom shell and the upper end penetrates through the panel, the lower end of the air guide structure and the fan are arranged in the stove cavity, and the upper end of the air guide structure penetrates through the base and is located above the panel.

Images