Fire cover assembly and combustor
By setting a secondary air channel in the inner fire cover and setting a brim shield on the surrounding side, the problems of burner height being too high and overflow blockage are solved, and the effect of compact structure and convenient cleaning is achieved.
Patent Information
- Application Number
- CN202422227647.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The secondary air channel of the existing burner is set on the periphery of the flame distributor, which makes the burner too high and difficult to clean. Overflow easily blocks the channel, resulting in a poor user experience.
The secondary air channel is set in the inner fire cover, and a brim is set on the side of the inner fire cover to block the channel to avoid overflow and dripping, and the fire cover assembly is designed to be compact.
The burner structure is made compact, overflow is avoided to block the secondary air channel, and there is no need for cleaning, which improves the user experience.
Smart Images
Figure CN223388574U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchen appliances, in particular to a fire cover assembly and a burner. Background Art
[0002] To ensure combustion efficiency, existing burners are generally equipped with secondary air channels to assist combustion. However, these channels are typically located outside the ignition divider, making the ignition divider and the overall burner too high, hindering structural miniaturization. Furthermore, during cooking, spills can easily drip into the secondary air channels around the ignition divider. The ignition divider is typically fixed to the stovetop, making it difficult to disassemble and clean, resulting in a poor user experience.
[0003] Therefore, a fire cover assembly is urgently needed to solve the above problems. Utility Model Content
[0004] The present invention aims to solve at least one of the problems existing in the existing related technologies to a certain extent. To this end, the present invention proposes a fire cover assembly. By arranging the first and second air channels in the inner fire cover, compared with the method of arranging the secondary air channels on the periphery of the fire divider in the prior art, on the one hand, the structure is made more compact to avoid the burner height being too high. On the other hand, by arranging a first brim on the periphery of the inner fire cover body to block the first and second secondary air channels, it can effectively prevent overflow generated during cooking from dripping into the secondary air channels, avoid clogging of the secondary air channels, and eliminate the need to clean the secondary air channels.
[0005] The above purpose is achieved through the following technical solutions:
[0006] A fire cover assembly, comprising:
[0007] The outer fire cover comprises an outer fire cover body, wherein the outer fire cover body is provided with a first protrusion and a second protrusion, both of which protrude upwards, the first protrusion being provided on the outer side of the second protrusion, a first liquid storage groove being formed between the first protrusion and the second protrusion, a through hole being provided in the middle of the outer fire cover body, and an outer fire hole being provided on the peripheral side of the second protrusion;
[0008] An inner fire cover includes an inner fire cover body, an inner fire hole and a first brim are provided on the circumferential side of the inner fire cover body, the inner fire hole is located on the upper side of the first brim, the lower part of the inner fire cover body is provided in the middle of the through hole, and a first secondary air channel is formed between the lower part of the inner fire cover body and the hole wall of the through hole, the first brim is located above the second protrusion and the first secondary air channel, and a second secondary air channel connected to the first secondary air channel is formed between the first brim and the second protrusion.
[0009] Optionally, a downwardly extending guide flange is provided on the circumferential side of the first brim, and the vertical projection of the guide flange is located outside the vertical projection of the second protrusion.
[0010] Optionally, the upper side surface of the first brim is tilted downward from the inside to the outside.
[0011] Optionally, the inner fire cover further comprises a second brim arranged on the peripheral side of the upper end of the inner fire cover body, and the inner fire hole is located within the vertical projection of the second brim.
[0012] Optionally, the upper side surface of the second brim extends downward from the outside to the inside and forms a second liquid storage tank with the upper side surface of the inner fire cover body.
[0013] Optionally, an ignition needle mounting hole is further provided on the outer ignition cover body, and the ignition needle mounting hole is located between the first protrusion and the second protrusion.
[0014] Optionally, an inwardly recessed ignition needle avoidance groove is provided on the circumferential side of the first brim, and the ignition needle avoidance groove is located above the ignition needle mounting hole.
[0015] Optionally, a fire transfer groove and a plurality of fire transfer holes are further provided on the outer fire cover body. The fire transfer holes are opened in the vertical direction. The plurality of fire transfer holes are arranged radially along the outer fire cover body between the second protrusion and the first protrusion. The fire transfer groove is opened on the upper side of the first protrusion, and some of the fire transfer holes are opened in the fire transfer groove and connected with the outer fire hole.
[0016] Optionally, a third protruding portion protruding upward is further provided on the outer fire cover body, and the third protruding portion is arranged between the first protruding portion and the second protruding portion, and the part of the fire transfer hole arranged close to the second protruding portion is opened on the third protruding portion.
[0017] On the other hand, the utility model provides a burner, including a burner head, an ignition needle and the above-mentioned fire cover assembly, the burner head includes a gas delivery structure and a ignition divider arranged on the gas delivery structure, the ignition divider is provided with a first inner ring air duct and a first outer ring air duct, the inner fire cover body is provided with a second inner ring air duct connected to the inner fire hole, the inner fire cover body is covered on the ignition divider, so that the first inner ring air duct and the second inner ring air duct are connected to form an inner ring gas cavity, the outer fire cover body is provided with a second outer ring air duct connected to the outer fire hole, the outer fire cover body is covered on the ignition divider, so that the first outer ring air duct and the second outer ring air duct are connected to form an outer ring gas cavity.
[0018] Compared with the prior art, the present invention has at least the following beneficial effects:
[0019] The fire cover assembly provided by the present invention arranges the first and second air channels in the inner fire cover. Compared with the prior art method of arranging the secondary air channels on the periphery of the fire divider, on the one hand, the structure is made more compact, thereby avoiding the overall height of the burner being too high. On the other hand, by arranging a first brim on the periphery of the inner fire cover body to block the first and second secondary air channels, it can effectively prevent overflow generated during cooking from dripping into the secondary air channels, thereby avoiding clogging of the secondary air channels, and there is no need to clean the secondary air channels. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a burner provided in a specific embodiment of the utility model;
[0021] Figure 2 yes Figure 1 Exploded view of
[0022] Figure 3 This is an exploded view of a burner fire cover assembly provided by a specific embodiment of the present utility model;
[0023] Figure 4 yes Figure 1 A top view of
[0024] Figure 5 yes Figure 4 Cross-sectional view at the middle BB.
[0025] In the picture:
[0026] 1. External fire cover; 11. External fire cover body; 12. First raised portion; 121. External fire hole; 13. Second raised portion; 14. Ignition needle mounting hole; 15. Third raised portion; 151. Fire transfer hole; 16. Fire transfer groove;
[0027] 2. Inner fire cover; 21. Inner fire cover body; 211. Inner fire hole; 22. First brim; 221. Ignition needle avoidance groove; 222. Diversion flange; 23. Second brim;
[0028] 3. Stove head; 31. Flame distributor;
[0029] 4. Ignition needle; 41. Ignition needle base; 42. Ignition needle body;
[0030] 101. First liquid storage tank; 102. First inner ring air channel; 103. First outer ring air channel; 104. Through hole; 1051. First secondary air channel; 1052. Second secondary air channel; 106. Second inner ring air channel; 107. Second outer ring air channel; 108. Second liquid storage tank. DETAILED DESCRIPTION
[0031] The following examples illustrate the present invention, but the present invention is not limited by these examples. Modifications to the specific embodiments of the present invention or equivalent replacements of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed in the present invention.
[0032] Please refer to Figure 1-Figure 5 The present invention provides a fire cover assembly, comprising an outer fire cover 1 and an inner fire cover 2. The outer fire cover 1 comprises an outer fire cover body 11, on which a first protrusion 12 and a second protrusion 13 are provided, both of which protrude upwards. The first protrusion 12 is provided on the outer side of the second protrusion 13, and a first liquid storage tank 101 is formed between the first protrusion 12 and the second protrusion 13. A through hole 104 is provided in the middle of the outer fire cover body 11, and an outer fire hole 121 is provided around the second protrusion 13. The inner fire cover 2 includes an inner fire cover body 21, and an inner fire hole 211 and a first brim 22 are arranged on the peripheral side of the inner fire cover body 21. The inner fire hole 211 is located on the upper side of the first brim 22. The lower part of the inner fire cover body 21 is arranged in the middle of the through hole 104, and a first secondary air channel 1051 is formed between the lower part of the inner fire cover body 21 and the hole wall of the through hole 104. The first brim 22 is located above the second protrusion 13 and the first secondary air channel 1051. A second secondary air channel 1052 connected to the first secondary air channel 1051 is formed between the first brim 22 and the second protrusion 13.
[0033] The fire cover assembly provided by the present invention arranges the first and second air channels 1051 in the inner fire cover 2. Compared with the prior art method of arranging the secondary air channels on the periphery of the fire divider 31, on the one hand, the structure is made more compact to avoid the overall height of the burner being too high. On the other hand, by arranging the first brim 22 on the side of the inner fire cover body 21 to block the first and second secondary air channels 1051, 1052, it can effectively prevent overflow generated during cooking from dripping into the secondary air channels, avoid clogging of the secondary air channels, and eliminate the need to clean the secondary air channels.
[0034] Optionally, a downwardly extending guide flange 222 is provided around the periphery of the first brim 22. The vertical projection of the guide flange 222 is located outside the vertical projection of the second raised portion 13, so that the first brim 22 can completely cover the second raised portion 13, preventing overflowing liquid from dripping onto the second raised portion 13 and then flowing through the second raised portion 13 into the first secondary air passage 1051 and the second secondary air passage 1052. By providing the downwardly extending guide flange 222 around the periphery of the first brim 22, overflowing liquid from the upper side of the first brim 22 can drip into the first liquid storage tank 101 through the guide flange 222, preventing the overflowing liquid from flowing inward along the bottom side of the first brim 22 and then dripping onto the upper side of the second raised portion 13 or into the first secondary air passage 1051.
[0035] Optionally, the upper side of the first brim 22 is tilted downward from the inside to the outside, so as to facilitate the flow of overflowing liquid from the upper side of the first brim 22 into the first liquid storage tank 101 .
[0036] Optionally, the inner fire cover 2 also includes a second brim 23 arranged on the peripheral side of the upper end of the inner fire cover body 21, and the inner fire hole 211 is located within the vertical projection of the second brim 23. The second brim 23 is provided to block the inner fire hole 211 to prevent overflow from dripping into the inner fire hole 211.
[0037] Optionally, the upper side surface of the second brim 23 extends downward from the outside to the inside and forms a second liquid storage tank 108 with the upper side surface of the inner fire cover body 21, thereby retaining the overflow liquid. When cooking is completed, the accumulated liquid in the first liquid storage tank 101 and the second liquid storage tank 108 can be cleaned by removing the fire cover.
[0038] Optionally, an ignition needle mounting hole 14 is further provided on the outer ignition cover body 11 . The ignition needle mounting hole 14 is located between the first protrusion 12 and the second protrusion 13 , so that the ignition needle can ignite the inner ignition hole 211 .
[0039] Optionally, an inwardly recessed ignition needle avoidance groove 221 is provided on the peripheral side of the first brim 22 . The ignition needle avoidance groove 221 is located above the ignition needle mounting hole 14 to facilitate avoiding the ignition needle and facilitate a compact structure.
[0040] Optionally, the outer fire cover body 11 is further provided with a fire transfer groove 16 and a plurality of fire transfer holes 151. The fire transfer holes 151 are opened in the vertical direction and arranged radially between the second protrusion 13 and the first protrusion 12 of the outer fire cover body 11. The fire transfer groove 16 is opened on the upper side of the first protrusion 12, and some of the fire transfer holes 151 are opened in the fire transfer groove 16 and communicate with the outer fire hole 121. Specifically, the ignition needle first ignites the inner fire hole 211, and the flame of the inner fire hole 211 is transmitted to the outer fire hole 121 via the fire transfer hole 151, assisting the fire transfer of the fire transfer groove 16, so as to achieve a fast and stable fire transfer effect between the inner fire hole 211 and the outer fire hole 121.
[0041] Optionally, a third protruding portion 15 protruding upward is further provided on the outer fire cover body 11. The third protruding portion 15 is arranged between the first protruding portion 12 and the second protruding portion 13. Some of the fire transfer holes 151 arranged close to the second protruding portion 13 are opened on the third protruding portion 15, thereby preventing the accumulated liquid in the first liquid storage tank 101 from flowing into the fire transfer holes 151.
[0042] On the other hand, the present invention provides a burner, including a burner head 3, an ignition needle and the above-mentioned fire cover assembly, the burner head 3 includes a gas delivery structure and an ignition divider 31 arranged on the gas delivery structure, a first inner ring air duct 102 and a first outer ring air duct 103 are provided on the ignition divider 31, a second inner ring air duct 106 connected to the inner fire hole 211 is provided on the inner fire cover body 21, the inner fire cover body 21 is covered on the ignition divider 31, so that the first inner ring air duct 102 is connected to the second inner ring air duct 106 to form an inner ring gas cavity, and a second outer ring air duct 107 connected to the outer fire hole 121 is provided on the outer fire cover body 11, and the outer fire cover body 11 is covered on the ignition divider 31, so that the first outer ring air duct 103 is connected to the second outer ring air duct 107 to form an outer ring gas cavity.
[0043] Optionally, the ignition needle mounting hole 14 is located in the first liquid storage tank 101 .
[0044] Optionally, the ignition needle 4 includes an ignition needle base 41 and an ignition needle body 42 installed on the ignition needle base 41. The ignition needle base 41 is installed in the ignition needle mounting hole 14 of the outer ignition cover body 11. The ignition needle base 41 and the ignition needle mounting hole 14 are sealed. The upper side surface of the ignition needle base 41 is level with or higher than the upper side surface of the side wall of the ignition needle mounting hole 14 to avoid the accumulated liquid in the first liquid storage tank 101 from accumulating on the upper side surface of the ignition needle base 41.
[0045] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.
Claims
1. A fire cover assembly, characterized in that: include: An outer fire cover (1) comprises an outer fire cover body (11), wherein the outer fire cover body (11) is provided with a first protrusion (12) and a second protrusion (13) both protruding upward, the first protrusion (12) being arranged on the outside of the second protrusion (13), a first liquid storage tank (101) being formed between the first protrusion (12) and the second protrusion (13), a through hole (104) being provided in the middle of the outer fire cover body (11), and an outer fire hole (121) being provided on the peripheral side of the second protrusion (13); An inner fire cover (2) comprises an inner fire cover body (21), wherein an inner fire hole (211) and a first brim (22) are provided on the peripheral side of the inner fire cover body (21), wherein the inner fire hole (211) is located on the upper side of the first brim (22), the lower portion of the inner fire cover body (21) is provided in the middle portion of the through hole (104), and a first secondary air passage (1051) is formed between the lower portion of the inner fire cover body (21) and the hole wall of the through hole (104), the first brim (22) is located above the second protrusion (13) and the first secondary air passage (1051), and a second secondary air passage (1052) communicating with the first secondary air passage (1051) is formed between the first brim (22) and the second protrusion (13).
2. The fire cover assembly according to claim 1, characterized in that A downwardly extending guide flange (222) is provided on the circumferential side of the first brim (22), and the vertical projection of the guide flange (222) is located outside the vertical projection of the second raised portion (13).
3. The fire cover assembly according to claim 1, characterized in that The upper side surface of the first brim (22) is tilted downward from the inside to the outside.
4. The fire cover assembly according to claim 1, characterized in that The inner fire cover (2) further comprises a second brim (23) arranged on the peripheral side of the upper end of the inner fire cover body (21), and the inner fire hole (211) is located within the vertical projection of the second brim (23).
5. The fire cover assembly according to claim 4, characterized in that: The upper side surface of the second brim (23) extends downward from the outside to the inside and forms a second liquid storage tank (108) with the upper side surface of the inner fire cover body (21).
6. The fire cover assembly according to claim 1, characterized in that An ignition needle mounting hole (14) is also provided on the outer ignition cover body (11), and the ignition needle mounting hole (14) is located between the first raised portion (12) and the second raised portion (13).
7. The fire cover assembly according to claim 6, characterized in that An inwardly concave ignition needle avoidance groove (221) is provided on the peripheral side of the first hat brim (22), and the ignition needle avoidance groove (221) is located above the ignition needle mounting hole (14).
8. The fire cover assembly according to any one of claims 1 to 7, characterized in that: The outer fire cover body (11) is also provided with a fire transfer groove (16) and a plurality of fire transfer holes (151), the fire transfer holes (151) are opened in the vertical direction, and the plurality of fire transfer holes (151) are arranged along the radial direction of the outer fire cover body (11) between the second protrusion (13) and the first protrusion (12), the fire transfer groove (16) is opened on the upper side of the first protrusion (12), and some of the fire transfer holes (151) are opened in the fire transfer groove (16) and communicated with the outer fire hole (121).
9. The fire cover assembly according to claim 8, characterized in that The outer fire cover body (11) is also provided with a third raised portion (15) raised upward, and the third raised portion (15) is arranged between the first raised portion (12) and the second raised portion (13), and the fire transmission hole (151) arranged near the second raised portion (13) is opened on the third raised portion (15).
10. A burner, characterized in that: The invention comprises a burner head (3), an ignition needle (4) and a fire cover assembly according to any one of claims 1 to 9, wherein the burner head (3) comprises a gas delivery structure and an ignition distributor (31) arranged on the gas delivery structure, the ignition distributor (31) is provided with a first inner ring air duct (102) and a first outer ring air duct (103), the inner fire cover body (21) is provided with a second inner ring air duct (106) connected to the inner fire hole (211), the inner fire cover body (21 ) is covered on the ignition divider (31) so that the first inner ring air duct (102) is connected to the second inner ring air duct (106) to form an inner ring gas chamber, and the outer fire cover body (11) is provided with a second outer ring air duct (107) connected to the outer fire hole (121), and the outer fire cover body (11) is covered on the ignition divider (31) so that the first outer ring air duct (103) is connected to the second outer ring air duct (107) to form an outer ring gas chamber.