Combustor and stove

Abstract

The utility model provides a combustor and a stove. The combustor comprises a base, an inner ring fire cover, an inner ring gas mixing chamber, an inner ring injection pipe, an inner ring nozzle and an inner ring nozzle seat, the upper end of the inner ring gas mixing chamber is connected and communicated with the inner ring fire cover, the lower end of the inner ring gas mixing chamber is connected and communicated with the inner ring injection pipe, the lower side wall of the inner ring gas mixing chamber protrudes upwards to form a protruding part, and at least part of the inner ring injection pipe is located under the protruding part; the inner ring nozzle seat is fixed to the base, the inner ring nozzle is arranged at the air outlet end of the inner ring nozzle seat and located above the base, and an air outlet of the inner ring nozzle faces an air inlet of the inner ring injection pipe. The lower side wall of the inner ring gas mixing chamber protrudes upwards, so that a space used for containing the inner ring injection pipe is formed below the lower side wall of the inner ring gas mixing chamber, and therefore it can be guaranteed that enough intervals exist between the inner ring gas mixing chamber and the inner ring injection pipe in the vertical direction under the condition that the inner ring gas mixing chamber is not lifted, the heat dissipation effect is guaranteed, and the service life of the inner ring gas mixing chamber is prolonged. And load attenuation of the inner ring nozzle is reduced.

Description

Technical Field

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

[0002] In top-intake burners, the ejector tube is located below the mixing chamber. To ensure sufficient heat dissipation space between the ejector tube and the mixing chamber, a certain vertical distance is required between them. However, this results in a relatively high overall burner height. If the distance between them is too small, it will affect heat dissipation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a burner and stove.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A burner comprising a base, an inner ring flame cap, an inner ring mixing chamber, an inner ring ejector tube, an inner ring nozzle, and an inner ring nozzle seat;

[0006] The inner ring flame cap, the inner ring mixing chamber, and the inner ring ejector tube are all located above the base. The inner ring mixing chamber is mounted on the base. The upper end of the inner ring mixing chamber is connected and communicates with the inner ring flame cap, and the lower end of the inner ring mixing chamber is connected and communicates with the inner ring ejector tube. The lower sidewall of the inner ring mixing chamber protrudes upward to form a protrusion. The inner ring ejector tube is at least partially located directly below the protrusion.

[0007] The inner ring nozzle seat is fixed on the base, the inner ring nozzle is located at the air outlet end of the inner ring nozzle seat and above the base, and the air outlet of the inner ring nozzle faces the air inlet of the inner ring ejector tube.

[0008] In this design, the lower sidewall of the inner ring mixing chamber protrudes upwards, creating a space below the lower sidewall to accommodate the inner ring ejector. This ensures sufficient vertical spacing between the inner ring mixing chamber and the inner ring ejector without raising the inner ring mixing chamber, guaranteeing heat dissipation and reducing the load attenuation of the inner ring nozzle. Furthermore, the upward protrusion of the lower sidewall of the inner ring mixing chamber reduces the area of ​​the upper part of the chamber, preventing knocking and improving the user experience.

[0009] Preferably, the lower sidewall of the inner ring mixing chamber is inclined upward relative to the horizontal surface, the inner ring nozzle seat is located at the end of the inner ring mixing chamber that is furthest from the base in the vertical direction, and the air inlet of the inner ring ejector tube is exposed outside the inner ring mixing chamber.

[0010] In this design, the area closer to the inner ring nozzle has a larger space between the inner ring mixing chamber and the base, resulting in a larger primary air flow rate, lower resistance to primary air flow, easier replenishment of primary air, and better ejection effect.

[0011] Preferably, the end of the inner annular mixing chamber that is closest to the base in the vertical direction is the lowest end of the inner annular mixing chamber, and the end of the inner annular mixing chamber that is farthest from the base in the vertical direction is the highest end of the inner annular mixing chamber. The lowest end of the inner annular mixing chamber is mounted on the base, and the highest end of the inner annular mixing chamber is mounted on the inner annular nozzle seat.

[0012] In this design, the above-mentioned configuration results in a larger area of ​​the inner ring nozzle seat exposed to the air, a larger heat exchange airflow channel, and better heat dissipation.

[0013] Preferably, the inner annular mixing chamber includes a body and a first positioning part, the first positioning part extending downward from the lower end of the body; the upper end of the base is provided with a second positioning part, and the first positioning part and the second positioning part are connected in cooperation.

[0014] In this solution, the first positioning part and the second positioning part cooperate to achieve rapid positioning of the two, thereby improving the assembly efficiency and positioning accuracy.

[0015] Preferably, the second positioning part has a C-shaped structure and a C-shaped limiting groove is formed thereon. The opening of the limiting groove is parallel to the horizontal plane, and the inner wall surface of the limiting groove abuts against the first positioning part.

[0016] In this design, rapid positioning of the two components is achieved through the cooperation between the first positioning part and the inner wall of the limiting groove, improving assembly efficiency and positioning accuracy. The C-shaped second positioning part has low precision requirements for its cooperation with the first positioning part, reducing manufacturing precision requirements and manufacturing difficulty.

[0017] Preferably, the inner ring mixing chamber further includes a third positioning part, which is located at the lower end of the body, and a fourth positioning part is provided at the upper end of the inner ring nozzle seat, which is connected to the third positioning part.

[0018] One of the third positioning part and the fourth positioning part is a groove, and the other is a protrusion adapted to the groove.

[0019] In this solution, the cooperation of the third and fourth positioning parts enables rapid positioning of the inner ring mixing chamber and the inner ring nozzle seat, thereby improving the assembly efficiency and positioning accuracy of both.

[0020] Preferably, the injection direction of the inner ring nozzle is parallel to the extension direction of the inner ring ejector tube.

[0021] In this design, the above-mentioned configuration ensures that the gas ejected from the inner ring nozzle can smoothly enter the inner ring ejector tube, reducing gas leakage and improving safety.

[0022] Preferably, the burner includes an ignition needle fixed to the inner ring nozzle seat;

[0023] And / or, the burner includes a thermocouple fixed to the inner ring nozzle seat.

[0024] In this design, the ignition needle and / or thermocouple are fixed to the inner ring nozzle seat for easy cleaning by the user.

[0025] Preferably, the burner further includes a shielding structure fixed on the inner ring nozzle seat, the shielding structure forming a shielding groove for accommodating the inner ring nozzle, the outlet end of the inner ring nozzle being disposed in the shielding groove, and the shielding structure covering the upper end and / or side of the inner ring nozzle.

[0026] In this design, the shielding structure serves two purposes: firstly, it prevents liquid overflow from clogging the air outlet of the inner ring nozzle; secondly, it guides the flow of primary air, directing and delivering it into the inner ring ejector tube. This prevents air interference caused by the inner ring nozzle being exposed to air, and also separates the primary and secondary air, preventing interference from secondary air at the ignition needle.

[0027] A cooktop includes a cooktop panel and a burner as described above, with the base mounted above the cooktop panel.

[0028] The significant advantages of this invention are as follows: the lower sidewall of the inner ring mixing chamber protrudes upwards, creating a space below the lower sidewall for accommodating the inner ring ejector tube. This ensures sufficient vertical spacing between the inner ring mixing chamber and the inner ring ejector tube without raising the inner ring mixing chamber, guaranteeing heat dissipation and reducing the load attenuation of the inner ring nozzle. Furthermore, the upward protrusion of the lower sidewall of the inner ring mixing chamber reduces the area of ​​the upper part of the inner ring mixing chamber, preventing popping sounds and improving the user experience. Attached Figure Description

[0029] Figure 1 This is a side view of a stove according to an embodiment of the present invention.

[0030] Figure 2 This is a three-dimensional structural diagram of a burner according to an embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram of the internal structure of a burner according to an embodiment of the present invention.

[0032] Figure 4 This is a three-dimensional structural diagram of the inner ring mixing chamber according to an embodiment of the present invention.

[0033] Figure 5 This is a three-dimensional structural diagram of the inner ring mixing chamber according to an embodiment of the present invention.

[0034] Figure 6 This is a three-dimensional structural diagram of the base and inner ring nozzle seat in an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] Stove panel 1

[0037] Base 2

[0038] Second positioning unit 21

[0039] Limiting groove 211

[0040] Inner ring fire cap 3

[0041] Inner ring mixing chamber 4

[0042] Protrusion 41

[0043] The lowest end of the inner ring mixing chamber 42

[0044] The highest point of the inner ring mixing chamber is 43.

[0045] Ontology 44

[0046] First positioning section 45

[0047] Third Positioning Unit 46

[0048] Groove 461

[0049] Inner ring ejector tube 5

[0050] Inner ring nozzle 6

[0051] Inner ring nozzle seat 7

[0052] Fourth Positioning Unit 71

[0053] 711 protrusion

[0054] Ignition needle 81

[0055] Thermocouple 82

[0056] Shielding structure 9

[0057] Upper plate 91

[0058] Side panel 92 Detailed Implementation

[0059] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0060] like Figure 1 As shown, this embodiment discloses a stove, including a stove panel 1 and a burner. Specifically, the burner in this embodiment is an upward-intake burner, meaning that primary air mixes with the gas from above the stove panel 1.

[0061] like Figure 2 and Figure 3 As shown, the burner includes a base 2, an inner ring flame cap 3, an inner ring mixing chamber 4, an inner ring ejector tube 5, an inner ring nozzle 6, an inner ring nozzle seat 7, an ignition needle 81, a thermocouple 82, and a shielding structure 9.

[0062] like Figures 1-5 As shown, the base 2 is installed above the cooktop panel 1. The inner ring burner cap 3, the inner ring mixing chamber 4, and the inner ring injector tube 5 are all located above the base 2. The inner ring mixing chamber 4 is installed on the base 2. The upper end of the inner ring mixing chamber 4 is connected and communicates with the inner ring burner cap 3, and the lower end of the inner ring mixing chamber 4 is connected and communicates with the inner ring injector tube 5. The inner ring nozzle seat 7 is fixed on the base 2. The inner ring nozzle 6 is located at the outlet end of the inner ring nozzle seat 7 and is located above the base 2. The outlet of the inner ring nozzle 6 faces the inlet of the inner ring injector tube 5. There is a gap between the outlet of the inner ring nozzle 6 and the inlet of the inner ring injector tube 5. The gas ejected from the inner ring nozzle 6 mixes with the external primary air and then enters the inner ring injector tube 5.

[0063] like Figure 3 As shown, in this embodiment, the injection direction of the inner ring nozzle 6 is parallel to the extension direction of the inner ring ejector tube 5, and both are parallel to the horizontal direction, thereby ensuring that the gas ejected from the inner ring nozzle 6 can smoothly enter the inner ring ejector tube 5, reducing gas leakage and improving safety.

[0064] In other alternative embodiments, the spray direction of the inner ring nozzle 6 and the extension direction of the inner ring ejector tube 5 may not be parallel to the horizontal direction, but rather form a certain angle with the horizontal plane. However, the spray direction of the inner ring nozzle 6 should be kept as parallel as possible to the extension direction of the inner ring ejector tube 5.

[0065] like Figures 3-5 As shown, the lower sidewall of the inner ring mixing chamber 4 protrudes upward to form a protrusion 41, thereby creating a space below the lower sidewall of the inner ring mixing chamber 4 to accommodate the inner ring ejector tube 5. In this embodiment, the inner ring ejector tube 5 is entirely located directly below the protrusion 41, thus ensuring sufficient vertical spacing between the inner ring mixing chamber 4 and the inner ring ejector tube 5 without raising the inner ring mixing chamber 4, ensuring heat dissipation and reducing the load attenuation of the inner ring nozzle 6. Furthermore, the upward protrusion of the lower sidewall of the inner ring mixing chamber 4 reduces the area of ​​the upper part of the inner ring mixing chamber 4, preventing popping and improving the user experience.

[0066] In other alternative embodiments, the inner ring ejector 5 is at least partially located directly below the protrusion 41.

[0067] Specifically, such as Figures 1-5 As shown, the inner ring mixing chamber 4 includes a body 44, a first positioning part 45, and a third positioning part 46.

[0068] like Figure 1 and Figure 2 As shown, a protrusion 41 is formed on the body 44, and the inner ring ejector tube 5 is located directly below the body 44. The lower sidewall of the body 44 is inclined upward relative to the horizontal plane. The end of the body 44 closest to the base 2 in the vertical direction is designated as the lowest end 42 of the inner ring mixing chamber, and the end of the body 44 farthest from the base 2 in the vertical direction is designated as the highest end 43 of the inner ring mixing chamber. The inner ring nozzle seat 7 is located at the highest end 43 of the inner ring mixing chamber, and the air inlet of the inner ring ejector tube 5 is exposed outside the inner ring mixing chamber 4. Since the space between the inner ring mixing chamber 4 and the base 2 is larger closer to the inner ring nozzle 6, the primary air flow rate is greater, the resistance to primary air flow is lower, facilitating the replenishment of primary air and improving the ejection effect. The inner ring nozzle seat 7 has a larger exposed area to the air, resulting in a larger heat exchange airflow channel and better heat dissipation.

[0069] like Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, the lowest end 42 of the inner ring mixing chamber is mounted on the base 2, and the highest end 43 of the inner ring mixing chamber is mounted on the inner ring nozzle seat 7. Specifically, the first positioning part 45 extends downward from the lower end surface of the body 44. The upper end surface of the base 2 is provided with a second positioning part 21, and the first positioning part 45 and the second positioning part 21 are connected in a mating manner. In this embodiment, the second positioning part 21 has a C-shaped structure, and the second positioning part 21 forms a C-shaped limiting groove 211. The opening of the limiting groove 211 is parallel to the horizontal plane, and the inner wall surface of the limiting groove 211 abuts against the first positioning part 45. In this embodiment, the rapid positioning of the first positioning part 45 and the inner wall surface of the limiting groove 211 of the second positioning part 21 is achieved through the mating of the first positioning part 45 and the second positioning part 21, thereby improving the assembly efficiency and positioning accuracy. The mating accuracy requirement between the C-shaped second positioning part 21 and the first positioning part 45 is low, reducing the manufacturing accuracy requirement and manufacturing difficulty.

[0070] like Figure 1 , Figure 3 , Figure 5 and Figure 6As shown, the third positioning part 46 is located at the lower end of the main body 44, and the upper end of the inner ring nozzle seat 7 is provided with a fourth positioning part 71. The fourth positioning part 71 is connected to the third positioning part 46. In this embodiment, the third positioning part 46 is a groove 461, and the fourth positioning part 71 is a protrusion 711. The groove 461 and the protrusion 711 cooperate with each other. In this embodiment, the cooperation of the third positioning part 46 and the fourth positioning part 71 enables rapid positioning of the inner ring mixing chamber 4 and the inner ring nozzle seat 7, improving the assembly efficiency and positioning accuracy of both.

[0071] In other alternative embodiments, the third positioning part 46 can be designed as a protrusion 711 and the fourth positioning part 71 can be designed as a groove 461.

[0072] like Figure 6 As shown, both the ignition needle 81 and the thermocouple 82 are fixed on the inner ring nozzle seat 7, which makes it convenient for users to clean.

[0073] In other alternative implementations, the ignition needle 81 and / or thermocouple 82 may also be provided independently of the inner ring nozzle seat 7.

[0074] like Figure 3 and Figure 6 As shown, the burner also includes a shielding structure 9, which is fixed on the inner ring nozzle seat 7. The shielding structure 9 forms a shielding groove for accommodating the inner ring nozzle 6. The outlet end of the inner ring nozzle 6 is located in the shielding groove. The shielding structure 9 covers the upper end and / or side of the inner ring nozzle 6.

[0075] Specifically, such as Figure 6 As shown, the shielding structure 9 in this embodiment includes an upper plate 91 and a side plate 92. The upper plate 91 covers the inner ring nozzle 6 and is used to shield the liquid overflowing above the inner ring nozzle 6. The side plate 92 extends downward from both sides of the upper plate 91 and is parallel to the injection direction of the inner ring nozzle 6. The side plate 92 is used to shield the liquid overflowing to the side of the inner ring nozzle 6. The lower end of the shielding structure 9 is open, so that primary air can enter the interior of the shielding structure 9 from the opening at the lower end of the shielding structure 9 and mix with the fuel gas injected by the inner ring nozzle 6.

[0076] In this embodiment, the shielding structure 9 can, on the one hand, shield the overflowing liquid to prevent it from clogging the air outlet of the inner ring nozzle 6. On the other hand, the shielding structure 9 can guide the flow of primary air, directionally ejecting and delivering the primary air into the inner ring ejector tube 5. This can prevent air interference caused by the inner ring nozzle 6 being exposed to the air, and at the same time, it can separate the primary air and secondary air to prevent the secondary air at the ignition needle 81 from stealing air and interfering with the ejection.

[0077] In other alternative embodiments, the shielding structure 9 may also consist of only the top plate 91 or the side plate 92.

[0078] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown by the device or component during normal use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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.

[0079] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A burner, characterized in that, The burner includes a base, an inner ring flame cap, an inner ring mixing chamber, an inner ring ejector tube, an inner ring nozzle, and an inner ring nozzle seat; The inner ring flame cap, the inner ring mixing chamber, and the inner ring ejector tube are all located above the base. The inner ring mixing chamber is mounted on the base. The upper end of the inner ring mixing chamber is connected and communicates with the inner ring flame cap, and the lower end of the inner ring mixing chamber is connected and communicates with the inner ring ejector tube. The lower sidewall of the inner ring mixing chamber protrudes upward to form a protrusion. The inner ring ejector tube is at least partially located directly below the protrusion. The inner ring nozzle seat is fixed on the base, the inner ring nozzle is located at the air outlet end of the inner ring nozzle seat and above the base, and the air outlet of the inner ring nozzle faces the air inlet of the inner ring ejector tube.

2. The burner as claimed in claim 1, characterized in that, The lower sidewall of the inner ring mixing chamber is inclined upward relative to the horizontal plane. The inner ring nozzle seat is located at the end of the inner ring mixing chamber that is furthest from the base in the vertical direction. The air inlet of the inner ring ejector tube is exposed outside the inner ring mixing chamber.

3. The burner as described in claim 2, characterized in that, The end of the inner annular mixing chamber that is closest to the base in the vertical direction is the lowest end of the inner annular mixing chamber, and the end of the inner annular mixing chamber that is farthest from the base in the vertical direction is the highest end of the inner annular mixing chamber. The lowest end of the inner annular mixing chamber is mounted on the base, and the highest end of the inner annular mixing chamber is mounted on the inner annular nozzle seat.

4. The burner as described in claim 3, characterized in that, The inner ring mixing chamber includes a body and a first positioning part, the first positioning part extending downward from the lower end of the body; the upper end of the base is provided with a second positioning part, the first positioning part and the second positioning part are connected in cooperation.

5. The burner as described in claim 4, characterized in that, The second positioning part has a C-shaped structure and a C-shaped limiting groove. The opening of the limiting groove is parallel to the horizontal plane, and the inner wall of the limiting groove abuts against the first positioning part.

6. The burner as claimed in claim 4, characterized in that, The inner ring mixing chamber also includes a third positioning part, which is located at the lower end of the body. The upper end of the inner ring nozzle seat is provided with a fourth positioning part, which is connected to the third positioning part. One of the third positioning part and the fourth positioning part is a groove, and the other is a protrusion adapted to the groove.

7. The burner as claimed in claim 1, characterized in that, The spray direction of the inner ring nozzle is parallel to the extension direction of the inner ring ejector tube.

8. The burner as claimed in claim 1, characterized in that, The burner includes an ignition needle, which is fixed to the inner ring nozzle seat; And / or, the burner includes a thermocouple fixed to the inner ring nozzle seat.

9. The burner as claimed in claim 1, characterized in that, The burner also includes a shielding structure, which is fixed on the inner ring nozzle seat. The shielding structure forms a shielding groove for accommodating the inner ring nozzle. The outlet end of the inner ring nozzle is located in the shielding groove. The shielding structure covers the upper end and / or side of the inner ring nozzle.

10. A stove, characterized in that, The cooktop includes a cooktop panel and a burner as described in any one of claims 1-9, with the base mounted above the cooktop panel.

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