Combustion assembly of stove

Abstract

A stove combustion assembly comprises a center fire cover and a fire distributor seat, and the fire distributor seat comprises a center fire cover seat with an upper opening, a center air inlet connector, an outer ring air inlet cavity, an outer ring air inlet connector, a radial fuel gas channel, an axial secondary air channel, an outer ring fuel gas groove and an outer ring fire cover part. The radial gas channel is communicated with the outer ring gas inlet cavity and the outer ring gas groove, and acute included angles are formed between bottom plates of the radial gas channel and the outer ring gas groove and the horizontal plane of the radial outer side. The top of the outer ring fire cover part is in a curved surface shape and is sequentially provided with a bottom right trapezoid cavity, a square cavity, a top straight trapezoid cavity, a lower outer ring combustion hole group communicated with the waist of the bottom right trapezoid cavity, an upper outer ring combustion hole group communicated with the square cavity and an inner ring combustion hole group communicated with the waist of the top straight trapezoid cavity from bottom to top; and the central fire cover seat supports the central fire cover. The distributor seat and the outer ring fire cover part are integrated, and the combustion holes in the outer ring fire cover part are long, so that flame stabilization and backfire prevention are realized.

Description

Technical Field

[0001] This utility model relates to a stove burner. Background Technology

[0002] The existing technology, Chinese patent CN202020196926.3, describes an easy-to-clean integrated stove burner, including a burner head, a burner holder, an inner burner cap, an outer burner cap, an ignition needle, and a sensing needle. It also includes a water tray, a pot support, and a cylindrical base with a lower opening. The outer ring gas chamber passes through a central through-hole, a flange supports the water tray, and screws pass through connecting holes and are screwed into fixing holes. The cylindrical base is fixedly connected to the burner holder, and an annular base is embedded within the cylindrical base. The annular base is fixed to a fixing column with screws. The bottom transverse plate of the foot supports extends from a slot. The water tray supports the annular base, the inner burner cap and the central burner cap are connected together, and the outer ring burner cap is connected to the burner holder. The problem is that the burner holder structure is complex, and the burner holder and the outer burner cap are separate units. Utility Model Content

[0003] The purpose of this utility model is to provide a stove combustion component that has good integrity and a stable flame and backfire prevention feature on the outer ring burner cap.

[0004] This invention is achieved as follows: a stove combustion assembly, characterized in that it includes a central burner cap and a burner holder.

[0005] The central flame cap is hollow and has a lower opening; an external interface is provided at the lower opening end.

[0006] The burner housing includes an open-top center burner cap, a center air intake port, an outer ring air intake chamber, an outer ring air intake port, a radial gas passage, an axial secondary air passage, an outer ring gas groove, and an outer ring burner cap. The radial gas passage communicates with the outer ring air intake chamber and the outer ring gas groove, and the bottom plates of the radial gas passage and the outer ring gas groove form an acute angle with the horizontal plane on the radially outer side. The top of the outer ring burner cap is curved, and from bottom to top, it is provided with a bottom right-angled trapezoidal cavity, a square cavity, a top straight trapezoidal cavity, a lower outer ring combustion hole group communicating with the waist of the bottom right-angled trapezoidal cavity, an upper outer ring combustion hole group communicating with the square cavity, and an inner ring combustion hole group communicating with the waist of the top straight trapezoidal cavity.

[0007] The external interface is threadedly connected to the center flame cap seat, and the center flame cap seat supports the center flame cap.

[0008] The stove combustion assembly is characterized in that the angle between the lower outer combustion hole of the lower outer ring combustion hole group and the radially outer horizontal plane is greater than the angle between the axis of the upper outer combustion hole of the upper outer ring combustion hole group and the radially outer horizontal plane.

[0009] The stove combustion assembly is characterized in that the number and diameter of the upper outer ring combustion holes in the upper outer ring combustion hole group are greater than the number and diameter of the lower outer ring combustion holes in the lower outer ring combustion hole group.

[0010] The stove combustion assembly is characterized in that there are two upper outer combustion holes opposite each other between two adjacent lower outer combustion holes.

[0011] The stove combustion assembly is characterized in that the axis of the inner combustion hole of the inner ring combustion hole group has an acute angle with the horizontal plane on the radial inner side.

[0012] The stove combustion assembly described above is characterized in that: the burner seat includes a base portion and an upper portion.

[0013] The base includes the outer ring air intake interface, the inverted frustum-shaped base plate, the arc-shaped lower axial secondary air channel, the top ring plate and the outer sleeve, and the top ring plate is provided with a cylindrical interface;

[0014] The upper part includes the central burner cap seat and central air intake interface, an inverted frustum-shaped base plate, an arc-shaped upper axial secondary air passage, and the outer ring burner cap.

[0015] The upper seat and the base are fastened together. The upper axial secondary air channel and the lower axial secondary air channel are connected to form the axial secondary air channel. Its radial inner sidewall forms the outer ring air intake cavity. The inverted frustum-shaped base plate and the inverted frustum-shaped bottom plate between two adjacent axial channels form the radial gas channel. The cylindrical interface is inserted into the outer ring burner seat, and the top ring plate supports the outer ring burner.

[0016] This utility model discloses a stove combustion assembly, which integrates a burner seat and an outer ring burner cap. The combustion holes on the outer ring burner cap are long, which achieves flame stabilization and prevents backfire. Attached Figure Description

[0017] Figure 1 This is a top view of the present invention.

[0018] Figure 2 yes Figure 1 A-A view.

[0019] Figure 3 yes Figure 1 B-B view.

[0020] Figure 4 This is one of the exploded perspective views of this utility model.

[0021] Figure 5 This is the second exploded perspective view of this utility model.

[0022] Figure 6This is one of the perspective views of this utility model.

[0023] Figure 7 This is the second perspective view of this utility model. Detailed Implementation

[0024] 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.

[0025] 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 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.

[0026] like Figure 1 , Figure 2 , Figure 3 As shown, a stove combustion assembly includes a central burner cap 1 and a burner holder 2.

[0027] The central flame cap 1 is hollow and has a lower opening; the lower opening end is provided with an external interface 11.

[0028] Flame distributor seat 2 includes an open-top center flame cap seat 20, a center air inlet 201, an outer ring air inlet chamber 27, an outer ring air inlet 22, a radial gas passage 23, an axial secondary air passage 24, an outer ring gas groove 25, and an outer ring flame cap portion 26. The outer ring air inlet 22 and the outer ring air inlet chamber 27 are connected. The radial gas passage 23 is connected to the outer ring air inlet chamber 27 and the outer ring gas groove 25. The bottom plates of the radial gas passage 23 and the outer ring gas groove 25 have an acute angle with the horizontal plane on the radial outer side.

[0029] The top of the outer ring burner cap 26 is curved, and from bottom to top, it is provided with a bottom right-angled trapezoidal cavity 261, a square cavity 262, a top straight trapezoidal cavity 263, a lower outer ring combustion hole group 2611 that communicates with the waist of the bottom right-angled trapezoidal cavity, an upper outer ring combustion hole group 2621 that communicates with the square cavity 262, and an inner ring combustion hole group 2631 that communicates with the waist of the top straight trapezoidal cavity 263. The outer wall plate of the square cavity 262 is arc-shaped.

[0030] The outer interface 11 is threadedly connected to the center burner cap seat 20, which supports the center burner cap 1. This structure integrates the existing ignition source seat and outer ring burner cap into one unit, facilitating assembly and providing good sealing performance. Due to the structure adopted in the outer ring burner cap part 262, the lengths of the upper outer combustion hole, lower outer combustion hole, and inner combustion hole are increased, effectively preventing backfire and providing flame stabilization.

[0031] As a further improvement of this utility model: the angle α between the lower outer combustion hole of the lower outer ring combustion hole group 2611 and the radially outer horizontal plane is greater than the angle β between the axis of the upper outer combustion hole of the upper outer ring combustion hole group 2621 and the radially outer horizontal plane, with angle α being 45 degrees and angle β being 42 degrees.

[0032] The number and diameter of the upper outer ring combustion hole group 2621 are greater than the number and diameter of the lower outer ring combustion hole group 2611, and the number of the upper outer combustion holes is twice the number of the lower outer combustion holes.

[0033] There are two upper outer combustion holes opposite each other between two adjacent lower outer combustion holes;

[0034] The axis of the inner combustion hole of the inner ring combustion hole group has an acute angle γ with the horizontal plane on the radial inner side, and the angle γ is 60 degrees. With the outer ring burner cap 26 being curved, the energy efficiency ratio is significantly improved under such angle matching, exceeding the energy efficiency ratio stipulated by the state.

[0035] like Figure 4 , Figure 5 As shown, the fire distributor seat 2 includes a base portion 2A and an upper seat portion 2B.

[0036] The base part 2A includes the outer ring air inlet 22, the inverted truncated cone base plate 2A1, the arc-shaped lower axial secondary air channel 2A2, the top ring plate 2A3 and the outer sleeve 2A4. The top ring plate is provided with a cylindrical interface 2A5, and the lower axial secondary air channel 2A2 protrudes from the upper surface of the inverted truncated cone base plate 2A1.

[0037] The upper part 2B includes the central flame cap seat 20 and the central air intake interface 201, the inverted frustum-shaped base plate 2B1, the arc-shaped upper axial secondary air channel 2B2, and the outer ring flame cap part 26.

[0038] The upper seat 2B and the base 2A are fastened together with screws. The upper axial secondary air channel 2B2 and the lower axial secondary air channel 2A2 are connected to form the axial secondary air channel 24. The radial inner wall of the upper axial secondary air channel 2B2 and the radial inner wall of the lower axial secondary air channel 2A2 form the outer ring air intake chamber 27. The inverted frustum-shaped base plate 2A1 and the inverted frustum-shaped bottom plate 2B1 between two adjacent axial secondary air channels 24 form the radial gas channel 23. The cylindrical interface 2A5 is inserted into the outer ring burner cap 26, and the top ring plate 2A3 supports the outer ring burner cap 26.

[0039] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cooktop burner assembly, characterized by: The center fire cover and the distributor seat are included, The center fire cover is hollow and has a lower opening, and the lower opening end is provided with an external interface. The distributor seat includes an upper opening center fire cover seat, a center air inlet interface, an outer ring air inlet cavity, an outer ring air inlet interface, a radial gas passage, an axial secondary air passage, an outer ring gas groove, and an outer ring fire cover part. The radial gas passage communicates with the outer ring air inlet cavity and the outer ring gas groove, and the bottom plate of the radial gas passage and the outer ring gas groove has an acute angle with the horizontal plane on the radial outer side. The top of the outer ring fire cover part is curved, and the bottom right trapezoidal cavity, the square cavity, the top straight trapezoidal cavity, the lower outer ring combustion hole group communicated with the waist of the bottom right trapezoidal cavity, the upper outer ring combustion hole group communicated with the square cavity, and the inner ring combustion hole group communicated with the waist of the top straight trapezoidal cavity are sequentially arranged from bottom to top. The external interface is threadedly connected with the center fire cover seat, and the center fire cover seat supports the center fire cover.

2. A cooktop burner assembly as defined in claim 1, characterized in that: The included angle between the lower outer combustion hole of the lower outer ring combustion hole group and the horizontal plane on the radial outer side is greater than the included angle between the axis of the upper outer combustion hole of the upper outer ring combustion hole group and the horizontal plane on the radial outer side.

3. A cooktop burner assembly according to claim 2, wherein: The number and diameter of the upper outer combustion hole of the upper outer ring combustion hole group are greater than the number and diameter of the lower outer combustion hole of the lower outer ring combustion hole group.

4. A hob burner assembly according to claim 3, wherein: There are two upper outer combustion holes opposite to each other between two adjacent lower outer combustion holes.

5. A cooktop burner assembly as defined in claim 1, wherein: The axis of the inner combustion hole of the inner ring combustion hole group has an acute angle with the horizontal plane on the radial inner side.

6. A cooktop burner assembly as claimed in claim 1, 2, 3, 4 or 5, characterised in that: The distributor seat includes a base part and an upper seat part, The base part includes the outer ring air inlet interface, an inverted conical frustum base plate, a circular-arc-shaped lower axial secondary air passage, a top circular ring plate, and an outer sleeve body, and the top circular ring plate is provided with a cylindrical interface; The upper seat part includes the center fire cover seat and the center air inlet interface, an inverted conical frustum bottom plate, a circular-arc-shaped upper axial secondary air passage, and the outer ring fire cover part, The upper seat part is buckled with the base part, the upper axial secondary air passage and the lower axial secondary air passage are butt-jointed to form the axial secondary air passage, the radial inner side wall thereof forms the outer ring air inlet cavity, the inverted conical frustum base plate and the inverted conical frustum base plate between two adjacent axial passages form the radial gas passage, the cylindrical interface is inserted into the outer ring fire cover seat, and the top circular ring plate supports the outer ring fire cover part.

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