Outer ring fire cap for a burner

By designing a special structure for the outer ring flame cap, including an inner ring wall plate, an inner ring interface, an outer ring wall plate, and an annular top plate, the problem of the outer ring flame cap being prone to detachment and having low energy efficiency has been solved, achieving complete combustion and improved energy efficiency.

CN224340127UActive Publication Date: 2026-06-09ZHONGSHAN ZUOCHI ELECTRIC APPLIANCE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN ZUOCHI ELECTRIC APPLIANCE CO LTD
Filing Date
2025-04-30
Publication Date
2026-06-09

Smart Images

  • Figure CN224340127U_ABST
    Figure CN224340127U_ABST
Patent Text Reader

Abstract

An outer ring burner cap includes an inner ring wall plate, an inner ring interface, an outer ring wall plate, and an annular top plate. The outer ring wall plate includes a cylindrical portion, a lower frustoconical portion, and an upper frustoconical portion. The lower frustoconical portion has a lower outer ring combustion hole, and the upper frustoconical portion has an upper outer ring combustion hole. The flames from the upper and lower outer ring combustion holes intersect or overlap. The upper and lower frustoconical portions of the outer ring burner cap, and the intersecting flames of the upper and lower outer ring combustion holes, effectively prevent the generation of stray flames, ensure complete combustion, and improve energy efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to a stove burner, and more particularly to an outer ring burner cap. Background Technology

[0002] Current technology, specifically Chinese patent 202110025523.1, describes a stove burner. The burner includes an outer ring flame cap and a base. The outer ring flame cap covers the base, and the base has multiple inlets for secondary air channels on its outer circumferential surface. The base also has multiple grooves on its outer circumferential surface, located near the inlets of the secondary air channels on the side close to the outer ring flame cap. These grooves extend from the inlets of the secondary air channels to the lower surface of the outer ring flame cap. This stove burner extends the inlets of the secondary air channels to the vicinity of the outer ring flame cap by providing grooves, allowing high-temperature gas near the outer ring flame cap to be introduced into the secondary air channels through the grooves. Simultaneously, the outer ring flame cap and the base together preheat the gas in the grooves, increasing the temperature of the secondary air. The preheated secondary air then flows through the secondary air channels to the flame cap, improving the combustion efficiency of the stove burner. However, the problem is that the outer ring flame cap is prone to producing detached flames, resulting in low energy efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an outer ring flame cap for a burner that features flame isolation, complete combustion, and high energy efficiency.

[0004] This invention is implemented as follows: an outer ring flame cap for a burner, characterized in that it includes an inner ring wall plate, an inner ring interface, an outer ring wall plate, and an annular top plate.

[0005] The outer ring wall panel includes a cylindrical part, a lower frustum-shaped part and an upper frustum-shaped part. The lower frustum-shaped part is provided with a lower outer ring combustion hole, and the upper frustum-shaped part is provided with an upper outer ring combustion hole. The flames of the upper outer ring combustion hole and the flames of the lower outer ring combustion hole intersect or overlap.

[0006] The outer ring flame cap of the burner is characterized in that the length of the generatrix of the upper frustum-shaped portion is greater than the length of the generatrix of the lower frustum-shaped portion.

[0007] The outer ring flame cap of the burner is characterized in that the diameter of the upper outer ring combustion hole is larger than the diameter of the lower outer ring combustion hole.

[0008] The outer ring flame cap of the burner is characterized in that the inner ring wall plate is shaped like a frustum conical.

[0009] The outer ring flame cap of the burner is characterized in that the axes of the upper outer ring combustion holes and the lower outer ring combustion holes are perpendicular to their respective generatrices.

[0010] The outer ring flame cap of the burner is characterized in that the upper outer ring combustion holes and the lower outer ring combustion holes are arranged alternately.

[0011] This utility model discloses an outer ring flame cap for a burner, which has an upper and lower truncated cone-shaped portion, and the flames of the upper and lower outer ring combustion holes intersect, effectively preventing the generation of detached flames, ensuring complete combustion, and improving energy efficiency. Attached Figure Description

[0012] Figure 1 This is the front view of this utility model.

[0013] Figure 2 yes Figure 1 A-A view.

[0014] Figure 3 This is a perspective view of the present invention. Detailed Implementation

[0015] 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.

[0016] 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.

[0017] like Figure 1 , Figure 2 As shown, an outer ring flame cap for a burner includes an inner ring wall plate 1, an inner ring interface 2, an outer ring wall plate 3, and an annular top plate 4.

[0018] The outer ring wall plate 3 includes a cylindrical part 31, a lower frustum-shaped part 32 and an upper frustum-shaped part 33. The lower frustum-shaped part 32 is provided with a lower outer ring combustion hole 321, and the upper frustum-shaped part 33 is provided with an upper outer ring combustion hole 331. The flame of the upper outer ring combustion hole 331 and the flame of the lower outer ring combustion hole 321 intersect or overlap.

[0019] When the outer ring combustion hole 321 and the upper outer ring combustion hole 331 are on the same plane, the flames intersect.

[0020] When the lower outer ring combustion hole 321 and the upper outer ring combustion hole 331 are located on different planes, the flames intersect and interact.

[0021] The axes of the lower outer ring combustion hole 321 and the upper outer ring combustion hole 331 intersect.

[0022] As a further improvement of this utility model: the length of the generatrix of the upper frustum-shaped portion 33 is greater than the length of the generatrix of the lower frustum-shaped portion 32.

[0023] The diameter of the upper outer ring combustion hole 331 is larger than the diameter of the lower outer ring combustion hole 321.

[0024] The axes of the upper outer ring combustion hole 331 and the lower outer ring combustion hole 321 are perpendicular to their respective generatrices.

[0025] The inner ring wall plate 1 is in the shape of a frustum cone.

[0026] The upper outer ring combustion holes 331 and the lower outer ring combustion holes 321 are arranged alternately. The flame of the lower outer ring combustion hole 321 extends into the space between the flames of two adjacent upper outer ring combustion holes 331 and interacts with each other.

[0027] 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. An outer ring flame cap for a burner, characterized in that: Includes inner ring wall panel, inner ring interface, outer ring wall panel, and annular top plate. The outer ring wall panel includes a cylindrical part, a lower frustum-shaped part and an upper frustum-shaped part. The lower frustum-shaped part is provided with a lower outer ring combustion hole, and the upper frustum-shaped part is provided with an upper outer ring combustion hole. The flames of the upper outer ring combustion hole and the flames of the lower outer ring combustion hole intersect or overlap.

2. The outer ring flame cap of a burner according to claim 1, characterized in that: The length of the generatrix of the upper frustum-shaped portion is greater than the length of the generatrix of the lower frustum-shaped portion.

3. The outer ring flame cap of a burner according to claim 2, characterized in that: The diameter of the upper outer ring combustion hole is larger than the diameter of the lower outer ring combustion hole.

4. The outer ring flame cap of a burner according to claim 1, characterized in that: The inner ring wall plate is shaped like a frustum of a cone.

5. The outer ring flame cap of a burner according to claim 1, characterized in that: The axes of the upper outer ring combustion holes and the lower outer ring combustion holes are perpendicular to their respective generatrices.

6. The outer ring flame cap of a burner according to claim 1, 2, 3, 4 or 5, characterized in that: The upper outer ring combustion holes and the lower outer ring combustion holes are arranged alternately.