Combustion assembly

Abstract

A combustion assembly comprises a fire distributor seat and a top fire cover, the fire distributor seat comprises an annular seat plate, a central annular seat plate, radial rib plates, a bottom arc-shaped part and a gas hole, and a counter bore is formed in an axis hole of the annular seat plate; the top fire cover comprises a top ring-shaped cover plate part and a cylinder part, a top arc-shaped cover plate part is arranged on the top ring-shaped cover plate part, and a slow flow cavity and a radial groove are formed in the top arc-shaped cover plate part; the lower end of the cylinder body part is inserted into the counter bore and is fixed, the flow slowing cavity and the gas hole are opposite, the axes of the flow slowing cavity and the gas hole coincide, a gap between the top arc-shaped cover plate part and the bottom arc-shaped part forms a convex combustion groove, and the top annular cover plate part between two adjacent top arc-shaped cover plate parts and the annular seat plate between two adjacent bottom arc-shaped parts form a concave combustion groove; and the top annular cover plate part and the annular seat plate form an annular fuel gas groove. Due to the arrangement of the slow flow cavity, fuel gas passes through a gap between the bottom arc-shaped part and the top arc-shaped cover plate part and then enters the slow flow cavity; vortex is reduced, fuel gas flows stably, and flames are stable.

Description

Technical Field

[0001] The utility model relates to a burner of a cooking appliance, in particular to a combustion assembly. Background Art

[0002] In the current prior art, Chinese Patent No. 201620109487.1, a flame distributor fire cap for an efficient burner, includes an upper cover and a lower cover stacked up and down. A plurality of fixed-distance head holes are radially arranged along the center of the periphery of the upper cover. An arc-shaped outer convex part is arranged at the outer edge of the upper cover corresponding to the position where each fixed-distance head hole is located. The adjacent arc-shaped outer convex parts are connected by an arc-shaped inner concave part; the outer shape of the lower cover plate body is equivalent to that of the upper cover plate body, and the outer dimension of the lower cover plate body is larger than that of the upper cover plate body; after the upper and lower covers are stacked, the cross-sections at both ends are in a stepped shape. The problem is that when the gas enters between the upper cover and the lower cover, the gas collides with the upper cover to generate eddy currents. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a combustion assembly, which has the characteristics that there are no eddy currents after the gas enters and the gas distribution is uniform.

[0004] The utility model is realized as follows: a combustion assembly, which is characterized in that: it includes a flame distributor seat and a top fire cap.

[0005] The flame distributor seat includes an annular seat plate, a central annular seat plate, radial rib plates, a bottom circular arc part arranged around the annular seat plate, and a gas hole arranged at the center of the bottom circular arc part. The adjacent two bottom circular arc parts and the annular seat plate therebetween form an outer axial air groove; a counterbore is arranged on the axis hole of the annular seat plate.

[0006] The top fire cap includes a top annular cover plate part and a cylinder part. A plurality of top circular arc cover plate parts are arranged on the top annular cover plate part. A flow buffering cavity and a radial groove communicated with the flow buffering cavity are arranged on the top circular arc cover plate part.

[0007] The lower end of the cylinder part is inserted into the counterbore and fixed. The flow buffering cavity and the gas hole are opposite and their axes coincide. The gap between the top circular arc cover plate part and the bottom circular arc part forms an outer convex combustion groove. The top annular cover plate part between the adjacent two top circular arc cover plate parts and the annular seat plate between the adjacent two bottom circular arc parts form an inner concave combustion groove; the top annular cover plate part and the annular seat plate form an annular gas groove.

[0008] The combustion assembly is characterized in that: the outer diameter of the annular seat plate is larger than the diameter of the top annular cover plate part, and the diameter of the bottom circular arc part is larger than the diameter of the top circular arc cover plate part.

[0009] The part of the circular seat plate that is larger than the top circular cover plate forms an inner concave flame guiding plate, and the part of the bottom circular arc part that is larger than the top circular arc cover plate forms an outer convex flame guiding plate.

[0010] The special feature of the described combustion component is that: the central angle of the top circular arc cover plate part is larger than the central angle of the bottom circular arc part.

[0011] The special feature of the described combustion component is that: an axial combustion groove is provided on the top circular ring cover plate part between the top circular arc cover plate parts.

[0012] The special feature of the described combustion component is that: the buffer chamber is convexly formed from the lower surface to the upper surface of the top circular arc cover plate part.

[0013] The special feature of the described combustion component is that: the buffer chamber is in a spherical curved surface at the upper surface part of the top circular arc cover plate part.

[0014] The special feature of the described combustion component is that: a transmission rod is provided at the top of the buffer chamber.

[0015] In the combustion component of the present utility model, with the setting of the buffer chamber, the gas passes through the gap between the bottom circular arc part and the top circular arc cover plate part and then enters the buffer chamber; the eddy current is reduced, the gas flow is stable, and the flame is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the top view of the present utility model.

[0017] Figure 2 is Figure 1 the A - A view of

[0018] Figure 3 is Figure 2 the B - B view of

[0019] Figure 4 is the perspective view of the present utility model.

[0020] Figure 5 is one of the perspective exploded views of the present utility model.

[0021] Figure 6 is the other perspective exploded view of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] As Figure 1 , Figure 2 shown, a combustion assembly includes a fire divider seat 1 and a top fire cover 2.

[0025] The fire divider seat 1 includes an annular seat plate 11, a central annular seat plate 12, radial rib plates 13, a bottom circular arc portion 14 disposed around the annular seat plate 11, and a gas hole 15 provided at the center of the bottom circular arc portion 14. The adjacent two bottom circular arc portions 14 and the annular seat plate 11 therebetween form an outer axial air groove; the radial rib plates are fixed to the axial hole of the annular seat plate 11 and the central annular seat plate 12, and the annular seat plate 11 and the central annular seat plate 12 between the adjacent two radial rib plates form an axial secondary air passage. A counterbore is provided on the axial hole of the annular seat plate 11.

[0026] The top fire cover 2 includes a top annular cover plate portion 21 and a cylindrical portion 22. A plurality of top circular arc cover plate portions 23 are provided on the top annular cover plate portion 21. A slow flow cavity 24 and a radial groove 25 communicating with the slow flow cavity 24 are provided on the top circular arc cover plate portion 23.

[0027] The lower end of the cylindrical portion 22 is inserted into the counterbore and fixed. The slow flow cavity 24 and the gas hole 15 are opposite and their axes coincide. The gap between the top circular arc cover plate portion 23 and the bottom circular arc portion 14 forms an outer convex combustion groove. The top annular cover plate portion 21 between the adjacent two top circular arc cover plate portions 23 and the annular seat plate 11 between the adjacent two bottom circular arc portions 14 form an inner concave combustion groove. The outer convex combustion groove and the inner concave combustion groove communicate; the top annular cover plate portion 21 and the annular seat plate 11 form an annular gas groove.

[0028] With the setting of the slow flow cavity, gas enters the slow flow cavity through the gas hole 15, and then the gas flows circumferentially through the slow flow cavity 24. Most of the gas enters the outer convex combustion groove for combustion, and a small part enters the inner concave combustion groove for combustion; since the gas in the two buffer cavities 24 enters the inner concave combustion groove, the firepower of the inner concave combustion groove is basically the same as that of the outer convex combustion groove, and the gas flow velocity is uniform, realizing uniform firepower.

[0029] As a further improvement of the present utility model: the outer diameter of the annular seat plate 11 is greater than the outer diameter of the top annular cover plate portion 21, and the diameter of the bottom circular arc portion 14 is greater than the diameter of the top circular arc cover plate portion 23.

[0030] The part of the circular seat plate 11 that is larger than the top circular cover plate part 21 forms an inwardly concave flame guiding plate, and the part of the bottom circular arc part 14 that is larger than the top circular arc cover plate part 23 forms an outwardly convex flame guiding plate.

[0031] As a further improvement of the present utility model: the central angle of the top circular arc cover plate part 23 is larger than the central angle of the bottom circular arc part 14. The central angle of the top circular arc cover plate part 23 is greater than 180 degrees, and the central angle of the bottom circular arc part 14 is 90 degrees. With such a design, the combustion area is increased.

[0032] As a further improvement of the present utility model: an axial combustion groove 211 is provided on the top circular ring cover plate part 21 between the top circular arc cover plate parts 23. With such a design, the combustion area is increased.

[0033] The buffer cavity 24 is formed by protruding from the lower surface to the upper surface of the top circular arc cover plate part 23. The top burner cap 2 is made by stamping metal sheets;

[0034] The buffer cavity 24 is in a spherical curved surface at the upper surface part of the top circular arc cover plate part 23.

[0035] A transmission rod 3 is provided at the top of the buffer cavity 24; it is used for a lifting type cooker burner.

[0036] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A combustion component, characterized in that: It includes a burner base and a top burner cover. The burner base includes an annular seat plate, a central annular seat plate, radial rib plates, a bottom circular arc portion arranged around the annular seat plate, and a gas hole provided at the center of the bottom circular arc portion. The adjacent two bottom circular arc portions and the annular seat plate therebetween form an outer axial air groove; a counterbore is provided in the axis hole of the annular seat plate. The top burner cover includes a top annular cover plate portion and a cylinder portion. A number of top circular arc cover plate portions are provided on the top annular cover plate portion. A flow buffer cavity and a radial groove communicating with the flow buffer cavity are provided on the top circular arc cover plate portion. The lower end of the cylinder portion is inserted into the counterbore and fixed. The flow buffer cavity and the gas hole are opposite and their axes coincide. The gap between the top circular arc cover plate portion and the bottom circular arc portion forms an outer convex combustion groove. The top annular cover plate portion between the adjacent two top circular arc cover plate portions and the annular seat plate between the adjacent two bottom circular arc portions form an inner concave combustion groove; the top annular cover plate portion and the annular seat plate form an annular gas groove.

2. The combustion assembly according to claim 1, wherein: The outer diameter of the annular seat plate is greater than the outer diameter of the top annular cover plate portion, and the diameter of the bottom circular arc portion is greater than the diameter of the top circular arc cover plate portion. The part of the annular seat plate that is greater than the top annular cover plate portion forms an inner concave flame guide plate, and the part of the bottom circular arc portion that is greater than the top circular arc cover plate portion forms an outer convex flame guide plate.

3. The combustion component according to claim 2, characterized in that: The central angle of the top circular arc cover plate portion is greater than the central angle of the bottom circular arc portion.

4. A combustion component according to claim 1, characterized in that: An axial combustion groove is provided on the top annular cover plate portion between the top circular arc cover plate portions.

5. A combustion component according to claim 1, 2, 3 or 4, characterized in that: The flow buffer cavity is formed by protruding from the lower surface to the upper surface of the top circular arc cover plate portion.

6. The combustion assembly according to claim 5, characterized in that: The flow buffer cavity is a spherical surface at the upper surface portion of the top circular arc cover plate portion.

7. A combustion assembly according to claim 5, characterized in that: A transmission rod is provided at the top of the flow buffer cavity.

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