Burners and gas stoves

Abstract

This utility model belongs to the field of gas stove technology, and discloses a burner and a gas stove. The burner includes a base and an injector tube. A mixing chamber and a pressure-boosting groove are provided inside the base. One end of the pressure-boosting groove penetrates the base to form a guide port. The injector tube is located at the bottom of the base and is integrally formed and connected to the base. One end of the injector tube is connected to the guide port. The burner also includes a pressure-boosting cover plate, which is detachably connected to the base and covers the pressure-boosting groove to form a pressure-boosting channel. Along the length of the pressure-boosting channel, the inner diameter of the channel is different, and the two ends form a diffuser end and a guide end, respectively. The diffuser end connects to the mixing chamber, and the guide end connects to the injector tube. The inner diameter of the diffuser end is larger than that of the guide end. The burner of this utility model can reduce the difficulty of processing technology, ensure the assembly accuracy and sealing of the injector tube and the pressure-boosting channel, improve assembly efficiency, and help improve the combustion stability of the gas stove and reduce pollutant emissions.

Description

Technical Field

[0001] This utility model relates to the field of gas stove technology, and in particular to burners and gas stoves. Background Technology

[0002] Gas stoves are kitchen appliances that use direct flame heating through the combustion of gaseous fuels. Top-intake burners are combustion systems specifically designed for gas stoves. The air required for combustion enters entirely from above the stovetop panel, eliminating the need for oxygen supply from the bottom, offering advantages such as high safety and ease of cleaning and maintenance. Top-intake burners utilize an injector to accelerate gas flow and draw in secondary air for mixing. The injector is concealed beneath the premixing chamber of the base, passing through the base and extending within the premixing chamber to form a diffuser section. The inner diameter of the diffuser section varies, making it difficult to simultaneously form the injector during base fabrication using mold casting. Existing technology provides a burner with an injector groove within the premixing chamber, and a pre-fabricated semi-tube structure covering the groove to form the injector pipe. This semi-tube structure is relatively long and typically includes a straight extension and an arc extension, with the arc extension corresponding to the diffuser section, and its inner diameter varies. This results in high precision requirements for the semi-tube structure, and misalignment can easily occur during assembly with the base due to machining errors, affecting the ejection effect. Utility Model Content

[0003] One objective of this invention is to provide a burner that can solve the problem that existing burners, which are assembled into ejector pipes using a semi-tube structure, require high precision in machining and are prone to misalignment due to machining errors, thus affecting the ejection effect.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A burner is provided, including a base and an injector. A mixing chamber and a pressurization groove are provided within the base. One end of the pressurization groove penetrates the base to form a through-hole. The injector is disposed at the bottom of the base and integrally formed with the base. One end of the injector is connected to the through-hole. The burner also includes a pressurization cover plate, which is detachably connected to the base and covers the pressurization groove to form a pressurization channel. Along the length of the pressurization channel, the inner diameter of the channel is different, and a diffuser end and a through-hole are formed at both ends. The diffuser end connects to the mixing chamber, and the through-hole connects to the injector. The inner diameter of the diffuser end is larger than the inner diameter of the through-hole.

[0006] In one embodiment, the pressurizing cover plate has an extension groove on one side facing the pressurizing groove. Along the length of the extension groove, both ends of the extension groove are connected to the ejector tube and the mixing chamber, respectively. The extension groove and the pressurizing groove are connected to form the pressurizing channel.

[0007] In one embodiment, the base has a first mounting groove that communicates with the booster slot, and the booster cover is embedded in the first mounting groove, with the top of the booster cover not protruding from the bottom of the mixing chamber.

[0008] In one embodiment, the pressure boosting cover is provided with a protruding mounting handle on its edge, and the base is provided with a second mounting groove that communicates with the pressure boosting groove. When the pressure boosting cover is embedded in the first mounting groove, the mounting handle is embedded in the second mounting groove. The cross-sectional area of ​​the second mounting groove is larger than that of the mounting handle, and a pick-and-place space is formed between the inner wall of the second mounting groove and the mounting handle.

[0009] In one embodiment, the burner further includes a press-fit component, wherein a mounting hole is provided in the second mounting groove, the press-fit component is detachably disposed in the mounting hole, and the press-fit component is pressed against the upper surface of the mounting handle.

[0010] In one embodiment, the base includes a base plate, an inner side wall and an outer side wall that are coaxially arranged and interlocked, the base plate being connected to the inner side wall and the outer side wall to form the gas mixing chamber, the axis of the ejector tube extending in a straight line in a horizontal plane, and the ejector tube being tangential to the inner side wall.

[0011] In one embodiment, the pressurization channel extends in an arc shape around the center of the inner wall along the length of the pressurization channel.

[0012] In one embodiment, the central angle of the axis of the pressurization channel is 10° to 45°.

[0013] In one embodiment, the bottom of the mixing chamber is recessed to form a lifting groove, one end of which is connected to the mixing chamber and the other end of the pressurization channel away from the ejector tube. The bottom of the lifting groove extends obliquely towards the bottom of the mixing chamber in a direction from one end of the pressurization channel to the other end; and / or,

[0014] The ejector tube includes a main pipe and an ejector end. The ejector end has an air inlet and a constriction end. The inner diameter of the air inlet is larger than the inner diameter of the constriction end. The constriction end is connected to one end of the main pipe, and the other end of the main pipe is connected to the pressurization channel; and / or,

[0015] From the conducting end to the diffuser end, the inner wall of the pressurization channel has a smooth transition.

[0016] Another objective of this invention is to provide a gas stove with a burner that solves the problem that existing burners, which are assembled using a semi-tube structure to form an ejector pipe, require high precision in processing and are prone to installation misalignment due to processing errors, thus affecting the ejector effect.

[0017] To achieve this objective, the present invention employs the following technical solution in another aspect:

[0018] Gas stoves are provided, including burners as described above.

[0019] The beneficial effects of this utility model are:

[0020] The burner provided by this utility model has a pressurization groove inside its base, with one end of the pressurization groove penetrating the base to form a guide port. An injector tube is located at the bottom of the base and is integrally formed with the base. One end of the injector tube connects to the guide port. The injector tube and the base can be formed by die-casting aluminum alloy or forging copper alloy, without the need for assembly. The burner also includes a pressurization cover plate, which is detachably connected to the base and covers the pressurization groove to form a pressurization channel. Along the length of the pressurization channel, the inner diameter of the channel is different, and both ends form a diffuser end and a guide end, respectively. The diffuser end connects to the mixing chamber, and the guide end connects to the injector tube. The inner diameter of the diffuser end is larger than that of the guide end. The mixed gas in the ejector tube enters the conductive end through the conductive port. During its flow within the pressurization channel, due to the changing inner diameter of the pressurization channel and the larger cross-sectional area of ​​the diffuser end compared to the conductive end, the flow velocity of the mixed gas gradually slows down, and the dynamic pressure becomes static pressure. This facilitates further mixing of the fuel gas and air, improving the uniformity of the mixture. In this embodiment, the pressurization channel is formed by the assembly structure of the pressurization cover plate and the pressurization groove of the base. The ejector tube is installed through an integrally molded connection structure, dividing the gas flow channel into two parts. This reduces the difficulty of the manufacturing process and decreases the precision requirements for the pressurization cover plate and the base. It also reduces the risk of misalignment due to manufacturing errors during the assembly of the pressurization cover plate and the pressurization groove, ensuring the dimensional accuracy and sealing of the ejector tube and the pressurization channel. The mixed gas is fully mixed during its sequential flow within the ejector tube and the pressurization channel, ensuring complete combustion and stability.

[0021] The gas stove provided by this utility model includes the aforementioned burner, which forms a pressurization channel through an assembly structure consisting of a pressurization cover plate and a pressurization groove on the base. An injector tube is installed through an integrally molded connection structure, dividing the gas flow channel into two parts. This reduces the difficulty of the manufacturing process and decreases the precision requirements for the pressurization cover plate and base. It also reduces the risk of misalignment due to manufacturing errors during the assembly of the pressurization cover plate and pressurization groove, ensuring the assembly precision and sealing of the injector tube and pressurization channel. The mixed gas is fully mixed as it flows sequentially within the injector tube and pressurization channel, reducing the overall manufacturing cost of the gas stove, improving assembly efficiency, enhancing the combustion stability of the gas stove, and reducing pollutant emissions. Attached Figure Description

[0022] Figure 1 This is a partial structural schematic diagram of the burner provided in an embodiment of the present utility model;

[0023] Figure 2 This is a top view of the burner provided in this embodiment of the utility model;

[0024] Figure 3 yes Figure 2 Cross-sectional view of the structure along the AA direction;

[0025] Figure 4 This is a schematic diagram of the base provided in an embodiment of the present invention from one perspective;

[0026] Figure 5 This is a schematic diagram of the structure of the pressure-boosting cover plate provided in this embodiment of the utility model;

[0027] Figure 6 This is a structural schematic diagram of the base provided in an embodiment of the present invention from another perspective.

[0028] In the picture:

[0029] 1. Base; 11. Mixing chamber; 12. Pressurization groove; 13. Through port; 14. First mounting groove; 15. Second mounting groove; 16. Mounting hole; 171. Base plate; 172. Inner side wall; 173. Outer side wall; 18. Lifting groove;

[0030] 2. Ejector tube; 21. Main pipe; 22. Ejector end; 221. Inlet end; 222. Retractor end;

[0031] 3. Pressure boosting cover plate; 31. Pressure boosting channel; 311. Amplifier end; 312. Conductor end; 32. Extension groove; 33. Mounting handle. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0036] like Figures 1 to 3 As shown, this embodiment first provides a burner, which includes a base 1 and an injector 2. A mixing chamber 11 is provided inside the base 1. The mixed gas formed by the fuel gas and primary air enters the injector 2 through a nozzle.

[0037] A pressurization groove 12 is provided inside the base 1, with one end of the pressurization groove 12 penetrating through the base 1 to form a guide port 13. An injector 2 is located at the bottom of the base 1, and the injector 2 and the base 1 are integrally formed and connected. One end of the injector 2 is connected to the guide port 13. The injector 2 and the base 1 can be formed by die-casting of aluminum alloy or forging of copper alloy, without the need for assembly. The burner also includes a pressurization cover plate 3, which is detachably connected to the base 1 and covers the pressurization groove 12 to form a pressurization channel 31. Along the length of the pressurization channel 31, the inner diameter of the pressurization channel 31 is different, and a diffuser end 311 and a guide end 312 are formed at both ends. The diffuser end 311 connects to the mixing chamber 11, and the guide end 312 connects to the injector 2. The inner diameter of the diffuser end 311 is larger than the inner diameter of the guide end 312. The mixed gas in ejector tube 2 enters the conducting end 312 through the conducting port 13. During the flow in the pressurization channel 31, since the inner diameter of the pressurization channel 31 changes and the cross-sectional area of ​​the diffuser end 311 is larger than that of the conducting end 312, the flow velocity of the mixed gas gradually slows down, the dynamic pressure becomes static pressure, which is conducive to further mixing of gas and air and improves the mixing uniformity of the mixed gas. Since the pressurization channel 31 is located inside the mixing chamber 11 and its inner diameter is variable, it is difficult to process using mold casting because core pulling is difficult. In this embodiment, the pressurization channel 31 is formed by covering the pressurization cover plate 3 and the pressurization groove 12 of the base 1 with an assembly structure, and the ejector tube 2 is set through an integral molding connection structure. This divides the gas flow channel into two parts, reducing the difficulty of the processing technology and reducing the processing accuracy requirements of the pressurization cover plate 3 and the base 1. It also reduces the risk of installation misalignment due to processing errors during the assembly of the pressurization cover plate 3 and the pressurization groove 12, ensuring the dimensional accuracy and sealing of the ejector tube 2 and the pressurization channel 31. The mixed gas is fully mixed during the sequential flow of the ejector tube 2 and the pressurization channel 31, ensuring the completeness and stability of combustion.

[0038] The burner also includes a flame cap (not shown in the figure) covering the base 1, which closes the mixing chamber 11 and introduces secondary air into the mixing chamber 11.

[0039] The pressure boosting cover plate 3 has an extension groove 32 on the side facing the pressure boosting groove 12, such as Figure 5 As shown, along the length of the extension groove 32, both ends of the extension groove 32 are connected to the ejector tube 2 and the mixing chamber 11, respectively. The extension groove 32 and the pressurizing groove 12 are connected to form a pressurizing channel 31. The extension groove 32 and the pressurizing groove 12 each form two half-pipes. When the pressurizing cover plate 3 is placed inside the mixing chamber 11, the extension groove 32 and the pressurizing groove 12 are connected and enclosed to form the pressurizing channel 31.

[0040] The pressure-boosting cover plate 3 with the extension groove 32 can be processed by mold casting or by machining. This embodiment does not impose any specific limitations.

[0041] In one embodiment, the base 1 has a first mounting groove 14 that connects to the pressurization groove 12. The pressurization cover plate 3 is embedded in the first mounting groove 14, and the top of the pressurization cover plate 3 does not protrude from the bottom of the mixing chamber 11. Specifically, the first mounting groove 14 is located on both sides of the groove wall of the pressurization groove 12. When the pressurization cover plate 3 is embedded in the first mounting groove 14, the top of the pressurization cover plate 3 is flush with the bottom of the mixing chamber 11, reducing the obstruction of the flow of the mixed gas in the mixing chamber 11 by the pressurization cover plate 3. Ensuring the dimensional accuracy of the first mounting groove 14 can improve the installation position accuracy of the pressurization cover plate 3.

[0042] Since the top of the pressure booster cover 3 is flush with the bottom of the mixing chamber 11, a protruding mounting handle 33 is provided on the edge of the pressure booster cover 3 to facilitate its removal and placement. A second mounting groove 15 is provided on the base 1, which connects to the pressure booster groove 12. When the pressure booster cover 3 is embedded in the first mounting groove 14, the mounting handle 33 is embedded in the second mounting groove 15. The cross-sectional area of ​​the second mounting groove 15 is larger than that of the mounting handle 33. A removal and placement space is formed between the inner wall of the second mounting groove 15 and the mounting handle 33. It is more convenient to remove and place the mounting handle 33 through the removal and placement space, which improves the convenience of disassembly, assembly and maintenance.

[0043] To maintain the positional stability of the pressure booster cover 3, the burner also includes a press-fit component (not shown in the figure). A mounting hole 16 is provided in the second mounting groove 15, and the press-fit component is detachably disposed within the mounting hole 16, pressing against the upper surface of the mounting handle 33. Exemplarily, in one embodiment, the mounting hole 16 is a threaded hole, and the press-fit component is a bolt. The press-fit component is threaded into the mounting hole 16, and the head end of the bolt presses against the upper surface of the mounting handle 33, constraining it to the base 1.

[0044] In one embodiment, the base 1 includes a base plate 171, an inner sidewall 172 and an outer sidewall 173 coaxially arranged and fitted together, such as... Figure 4 As shown. The base plate 171 is connected to the inner wall 172 and the outer wall 173 to form a mixing chamber 11. The axis of the ejector tube 2 extends in a straight line in the horizontal plane, and the ejector tube 2 is tangential to the inner wall 172, as shown. Figure 6 As shown, this allows the ejector tube 2 to be as long as possible, which is beneficial to improving the ejection effect of the gas.

[0045] With the ejector tube 2 extending as long as possible, the pressurization channel 31 extends in an arc shape around the center of the inner wall 172 along the length direction of the pressurization channel 31.

[0046] In one embodiment, the central angle of the axis of the pressurization channel 31 is 10° to 45°. For example... Figure 2As shown in the figure, angle α is the central angle of the axis of the pressurization channel 31. When the value of angle α is in the range of 10° to 45°, the mixed gas can achieve sufficient pressurization and deceleration when flowing through the pressurization channel 31. Exemplarily, angle α can be 10°, 12°, 15°, 20°, 30°, or 45°, and is not limited to the above angles. In other embodiments, angle α can be any angle in the range of 10° to 45°, depending on the heat load and gear setting of the gas stove.

[0047] In one embodiment, the bottom of the mixing chamber 11 is recessed to form a lifting groove 18. One end of the lifting groove 18 is connected to the mixing chamber 11, and the other end is connected to the other end of the pressurization channel 31 away from the ejector tube 2. The bottom of the lifting groove 18 extends obliquely towards the bottom of the mixing chamber 11 from one end to the other end of the pressurization channel 31. The lifting groove 18, with its obliquely extending bottom, guides the mixed gas in the pressurization channel 31 to flow into the mixing chamber 11. The lifting groove 18 extends in an arc shape around the center of the inner sidewall 172. After the mixed gas flows out through the lifting groove 18, it flows tangentially along the lifting groove 18 and continues to rotate and flow along the mixing chamber 11, mixing with secondary air during the flow process.

[0048] From the conducting end 312 to the diffuser end 311, the inner wall of the pressurizing channel 31 has a smooth transition. That is, from the conducting end 312 to the diffuser end 311, the inner diameter of the pressurizing channel 31 gradually increases to avoid the increase in flow resistance caused by a sudden change in the inner diameter.

[0049] In one embodiment, the ejector tube 2 includes a main pipe 21 and an ejector end 22. The ejector end 22 has an inlet end 221 and a constriction end 222. The inner diameter of the inlet end 221 is larger than the inner diameter of the constriction end 222. The constriction end 222 is connected to one end of the main pipe 21, and the other end of the main pipe 21 is connected to the pressurization channel 31. The larger inner diameter of the inlet end 221 guides more gas into the ejector tube 2 and increases the flow velocity when passing through the smaller inner diameter of the constriction end 222, thereby improving the ejection effect into the main pipe 21.

[0050] In one embodiment, the burner has two pressurization slots 12, which are symmetrically arranged with respect to the center of the base 1. Two pressurization covers 3 are respectively placed on the two pressurization slots 12 to form two pressurization channels 31. The diffuser ends 311 of the two pressurization channels 31 are connected to extension slots 32, and the guide ends 312 of the two pressurization channels 31 are connected to ejector tubes 2. The arrangement of the two ejector tubes 2 can increase the intake airflow, thereby improving thermal efficiency. After the airflow flows out of the pressurization slots 12, it flows tangentially along the pressurization slots 12 and rotates along the annular mixing chamber 11. The two airflows formed by the two pressurization channels 31 have the same rotation direction and flow clockwise or counterclockwise, avoiding airflow blockage caused by gas convection and affecting the smoothness of the intake.

[0051] This utility model embodiment further provides a gas stove, which includes a burner as described in any of the above embodiments. The pressure boosting cover 3 of the burner is detachably connected to the base 1 and covers the pressure boosting groove 12 to form a pressure boosting channel 31. Along the length of the pressure boosting channel 31, the inner diameter of the channel is different, and both ends form a diffuser end 311 and a conductor end 312, respectively. The diffuser end 311 connects to the mixing chamber 11, and the conductor end 312 connects to the ejector tube 2. The inner diameter of the diffuser end 311 is larger than that of the conductor end 312. The mixed gas in the ejector tube 2 enters the conductor end 312 through the conductor port 13. During the flow within the pressure boosting channel 31, because the inner diameter of the pressure boosting channel 31 changes, and the cross-sectional area of ​​the diffuser end 311 is larger than that of the conductor end 312, the flow velocity of the mixed gas gradually slows down, and the dynamic pressure becomes static pressure, which facilitates further mixing of gas and air and improves the uniformity of the mixed gas. The pressurizing channel 31 is formed by covering the pressurizing groove 12 of the pressurizing cover plate 3 and the base 1 with an assembly structure, and the ejector tube 2 is set through an integrally formed connection structure. This divides the gas flow channel into two parts, reducing the difficulty of the processing technology and reducing the processing accuracy requirements of the pressurizing cover plate 3 and the base 1. It also reduces the risk of installation misalignment due to processing errors during the assembly of the pressurizing cover plate 3 and the pressurizing groove 12, ensuring the assembly accuracy and sealing of the ejector tube 2 and the pressurizing channel 31. The mixed gas is fully mixed during the sequential flow of the ejector tube 2 and the pressurizing channel 31, reducing the overall processing cost of the gas stove, improving assembly efficiency, improving the combustion stability of the gas stove, and reducing pollutant emissions.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. Burner comprising a base (1) in which a gas mixing chamber (11) is provided and a lance (2), characterized in that, The base (1) is provided with a pressure-boosting groove (12), one end of which penetrates the base (1) to form a guide port (13). The ejector tube (2) is located at the bottom of the base (1) and is integrally formed with the base (1). One end of the ejector tube (2) is connected to the guide port (13). The burner also includes a pressure-boosting cover plate (3), which is detachably connected to the base (1). It is placed over the pressurizing groove (12) to form a pressurizing channel (31). Along the length of the pressurizing channel (31), the inner diameter of the pressurizing channel (31) is different, and a diffuser end (311) and a conductor end (312) are formed at both ends respectively. The diffuser end (311) is connected to the mixing chamber (11), and the conductor end (312) is connected to the ejector tube (2). The inner diameter of the diffuser end (311) is larger than the inner diameter of the conductor end (312).

2. The burner of claim 1, wherein The pressurizing cover plate (3) has an extension groove (32) on one side facing the pressurizing groove (12). Along the length of the extension groove (32), both ends of the extension groove (32) are connected to the ejector tube (2) and the mixing chamber (11) respectively. The extension groove (32) and the pressurizing groove (12) are connected to form the pressurizing channel (31).

3. The burner of claim 1, wherein The base (1) has a first mounting groove (14) that connects to the booster groove (12), and the booster cover plate (3) is embedded in the first mounting groove (14). The top of the booster cover plate (3) does not protrude from the bottom of the mixing chamber (11).

4. The burner of claim 3, wherein The pressure-boosting cover plate (3) has a protruding mounting handle (33) on its edge. The base (1) has a second mounting groove (15) that connects to the pressure-boosting groove (12). When the pressure-boosting cover plate (3) is embedded in the first mounting groove (14), the mounting handle (33) is embedded in the second mounting groove (15). The cross-sectional area of ​​the second mounting groove (15) is larger than that of the mounting handle (33). A pick-and-place space is formed between the inner wall of the second mounting groove (15) and the mounting handle (33).

5. The burner of claim 4, wherein The burner also includes a press-fit component, and a mounting hole (16) is provided in the second mounting groove (15). The press-fit component is detachably disposed in the mounting hole (16) and is pressed against the upper surface of the mounting handle (33).

6. The burner of claim 1, wherein The base (1) includes a base plate (171), an inner sidewall (172) and an outer sidewall (173) that are coaxially arranged and interlocked. The base plate (171) is connected to the inner sidewall (172) and the outer sidewall (173) to form the gas mixing chamber (11). The axis of the ejector tube (2) extends in a straight line in the horizontal plane, and the ejector tube (2) and the inner sidewall (172) are tangentially arranged.

7. The burner of claim 6, wherein Along the length of the pressurization channel (31), the pressurization channel (31) extends in an arc shape around the center of the inner sidewall (172).

8. The burner of claim 7, wherein The central angle of the axis of the booster channel (31) is 10° to 45°.

9. Burner according to any of claims 1-8, characterized in that The bottom of the mixing chamber (11) is recessed to form a lifting groove (18), one end of which is connected to the mixing chamber (11) and the other end is connected to the other end of the pressurization channel (31) away from the ejector tube (2). The bottom of the lifting groove (18) extends obliquely towards the bottom of the mixing chamber (11) in the direction from one end to the other end of the pressurization channel (31); and / or, The ejector tube (2) includes a main pipe (21) and an ejector end (22). The ejector end (22) has an air inlet (221) and a constriction end (222). The inner diameter of the air inlet (221) is larger than the inner diameter of the constriction end (222). The constriction end (222) is connected to one end of the main pipe (21), and the other end of the main pipe (21) is connected to the pressurization channel (31); and / or, From the conducting end (312) to the diffuser end (311), the inner wall of the pressurizing channel (31) has a smooth transition.

10. Gas hob, characterized in that Including the burner as described in any one of claims 1-9.

Images