Fire cover and combustor

Abstract

The utility model discloses a burner cap and a burner. The fire cover is integrally formed and comprises a fire cover body, a first secondary air through hole, an inner fire hole and an outer fire hole are sequentially formed in the fire cover body from inside to outside, and an inner ring gas groove, an ignition needle containing groove and an outer ring gas groove are sequentially formed in the lower side of the fire cover body from inside to outside. The lower side of the fire cover body is further provided with a first fire transfer combustion groove, the first fire transfer combustion groove penetrates through the outer ring gas groove in the radial direction of the fire cover body so as to communicate the exterior of the fire cover with the ignition needle containing groove, and the side wall of the first fire transfer combustion groove is provided with an outer ring fire transfer hole communicating with the outer ring gas groove. The utility model provides a fire cover which is simple in structure and easy to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a burner cap and a burner. Background Art

[0002] Generally, a secondary air passage is arranged between the inner burner cap and the outer burner cap of a conventional burner to provide secondary air for the combustion of the burner and ensure the combustion efficiency. The overflow liquid generated during cooking is likely to drip into the secondary passage, polluting or even blocking the secondary air passage, and it is difficult to clean. The flame transfer holes and flame transfer grooves on the outer burner cap are also located on the upper surface of the burner cap, and are also easily polluted and blocked by the overflow liquid.

[0003] Therefore, there is an urgent need for a burner cap to solve the above problems. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the problems existing in the related art to a certain extent. For this purpose, the utility model provides a burner cap, in which the outer ring flame transfer holes and the ignition needles are both arranged on the lower side of the burner cap body, so as to realize the shielding of the ignition holes and the ignition needles, avoid the overflow liquid generated during cooking from dripping into the ignition holes and onto the ignition needles, and make the burner cap have the advantage of being easy to clean. The first secondary air through hole is arranged at the center of the burner cap body. On the one hand, it makes it difficult for the overflow liquid generated during cooking to drip into the first secondary air through hole, and on the other hand, it can also ensure the combustion efficiency of the burner.

[0005] The above object is achieved by the following technical solutions:

[0006] A burner cap, which is integrally formed. The burner cap includes a burner cap body. The burner cap body is successively provided with a first secondary air through hole, inner fire holes and outer fire holes from inside to outside. The lower side of the burner cap body is successively provided with an inner ring air groove, an ignition needle accommodation groove and an outer ring air groove from inside to outside. The lower side of the burner cap body is also provided with a first flame transfer combustion groove, and the first flame transfer combustion groove penetrates through the outer ring air groove along the radial direction of the burner cap body to communicate the outside of the burner cap and the ignition needle accommodation groove. The side wall of the first flame transfer combustion groove is provided with outer ring flame transfer holes communicating with the outer ring air groove.

[0007] Optionally, a first inner ring flame transfer hole communicating with the inner ring air groove is arranged on the inner wall of the first secondary air through hole.

[0008] Optionally, the middle part of the burner cap body is provided with an inner fire hole opening area located outside the first secondary air through hole. The upper side surface of the inner fire hole opening area is inclined downward from inside to outside. The inner fire holes are arranged on the inner fire hole opening area. The outer peripheral side of the burner cap body is provided with an outer fire hole opening area extending downward. The outer fire holes are arranged on the outer fire hole opening area.

[0009] Optionally, it further includes an occlusion cover, and struts connected to the fire cap body are arranged on the lower side of the occlusion cover. The occlusion cover is located above the first secondary air through hole, and the first secondary air through hole is within the vertical projection of the occlusion cover. A second secondary air through hole communicating with the first secondary air through hole is formed among the occlusion cover, the struts and the fire cap body.

[0010] Optionally, the inner fire holes are located outside the vertical projection of the occlusion cover.

[0011] On the other hand, the present utility model provides a burner, which includes a burner head, an ignition needle and the above-mentioned fire cap. The burner head includes an outer burner head body and an inner burner head body. A hole is formed in the middle of the outer burner head body, and the inner burner head body is arranged in the hole. An ignition needle accommodation hole is formed between the inner burner head body and the outer burner head body. A third secondary air through hole, an inner annular air hole, an inner flame transfer combustion groove, an ignition hole and a second inner annular flame transfer hole are formed on the inner burner head body. The inner annular air hole is located outside the third secondary air through hole. An outer annular air hole is formed on the outer burner head body. The third secondary air through hole and the first secondary air through hole communicate to form a secondary air channel. The inner annular air hole and the inner annular air groove communicate to form an inner annular air cavity. The outer annular air hole and the outer annular air groove communicate to form an outer annular air cavity. The ignition needle accommodation hole and the ignition needle accommodation groove communicate to form an ignition needle accommodation cavity. An outer flame transfer combustion groove is formed by enclosing between the first transfer combustion groove and the outer burner head body. The inner flame transfer combustion groove is radially formed on the lower side of the inner burner head body. The inner flame transfer combustion groove communicates the third secondary air through hole with the ignition needle accommodation hole. The ignition hole is formed on the circumference of the inner burner head body and communicates with the inner annular air hole. The ignition hole is located on one side of the inner flame transfer combustion groove. The second inner annular flame transfer hole is formed on the groove wall of the inner flame transfer combustion groove and communicates with the inner annular air hole. The ignition needle is arranged in the ignition needle accommodation cavity and is located between the ignition hole and the outer flame transfer combustion groove.

[0012] Optionally, a first transfer groove is further formed on the inner burner head body. The first transfer groove is formed on the side wall of the third secondary air through hole and communicates with the inner annular air hole.

[0013] Optionally, a second transfer groove is further formed on the inner burner head body. The second transfer groove extends from the ignition hole to the second inner annular flame transfer hole, and the second transfer groove communicates with the inner annular air hole.

[0014] Optionally, at least two first flame transfer grooves are provided, and the at least two first flame transfer grooves are arranged vertically.

[0015] Optionally, a first chamfer is provided at the inner port and / or outer port of the inner flame transfer combustion groove, and a second chamfer is provided at the inner port and / or outer port of the outer flame transfer combustion groove.

[0016] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0017] For the fire cap provided by the present utility model, the outer ring flame transfer holes and the ignition needle are both arranged on the lower side of the fire cap body, so as to shield the ignition holes and the ignition needle, avoiding the overflow liquid generated during cooking from dripping into the ignition holes and onto the ignition needle, making the fire cap easy to clean. The first and second air through holes are arranged at the center of the fire cap body. On the one hand, it makes it difficult for the overflow liquid generated during cooking to drip into the first and second air through holes, and on the other hand, it can ensure the combustion efficiency of the burner. Description of the Drawings

[0018] Figure 1 is one of the assembly schematic diagrams of the fire cap, the sub-fire divider and the ignition needle of the burner provided by the specific embodiment of the present utility model;

[0019] Figure 2 is the second of the assembly schematic diagrams of the fire cap, the sub-fire divider and the ignition needle of the burner provided by the specific embodiment of the present utility model;

[0020] Figure 3 is Figure 1 exploded view of;

[0021] Figure 4 is Figure 1 top view of;

[0022] Figure 5 is Figure 4 cross-sectional view taken along line A-A in;

[0023] Figure 6 is the three-dimensional structure schematic diagram of the fire cap of the burner provided by the specific embodiment of the present utility model;

[0024] Figure 7 is the three-dimensional structure schematic diagram of the outer sub-fire divider body of the sub-fire divider of the burner provided by the specific embodiment of the present utility model;

[0025] Figure 8 is the first of the three-dimensional structure schematic diagrams of the inner sub-fire divider body of the sub-fire divider of the burner provided by the specific embodiment of the present utility model;

[0026] Figure 9 is the second of the three-dimensional structure schematic diagrams of the inner sub-fire divider body of the sub-fire divider of the burner provided by the specific embodiment of the present utility model;

[0027] Figure 10 is Figure 1 the left view of;

[0028] Figure 11 is Figure 10 the sectional view taken along line B - B in;

[0029] In the figure:

[0030] 1. Burner cap; 11. Burner cap body; 111. Inner flame hole opening area; 112. Outer flame hole opening area; 12. Inner flame holes; 13. Outer flame holes; 14. Shielding cover; 141. Support pillar;

[0031] 2. Divider; 21. Outer divider body; 22. Inner divider body;

[0032] 3. Ignition needle;

[0033] 101. Secondary air passage; 1011. First secondary air through - hole; 1012. Second secondary air through - hole; 1013. Third secondary air through - hole; 102. Inner ring air cavity; 1021. Inner ring air groove; 1022. Inner ring air hole; 103. Outer ring air cavity; 1031. Outer ring air groove; 1032. Outer ring air hole; 104. Outer - flame flame - transferring combustion groove; 1040. Second chamfer; 1041. First flame - transferring combustion groove; 1042. Second flame - transferring combustion groove; 105. Inner - flame flame - transferring combustion groove; 1050. First chamfer; 106. Ignition hole; 107. Second inner - ring flame - transferring hole; 108. Outer - ring flame - transferring hole;

[0034] 201. Second flame - transferring groove; 202. First flame - transferring groove; 203. First inner - ring flame - transferring hole;

[0035] 300. Hole passage; 301. Ignition - needle accommodation cavity; 3011. Ignition - needle accommodation groove; 3012. Ignition - needle accommodation hole. Specific embodiments

[0036] The following embodiments are used to illustrate the present utility model, but the present utility model is not limited by these embodiments. Modifying the specific implementation manner of the present utility model or making equivalent replacements for some technical features without departing from the spirit of the present utility model scheme shall all be covered within the scope of the technical solution claimed by the present utility model.

[0037] Please refer to Figures 1 - 11, the present utility model provides a burner cap 1, which is integrally formed. The burner cap 1 includes a burner cap body 11. The burner cap body 11 is successively provided with a first secondary air through hole 1011, an inner fire hole 12, and an outer fire hole 13 from inside to outside. The lower side of the burner cap body 11 is successively provided with an inner ring air groove 1021, an ignition needle accommodating groove 3011, and an outer ring air groove 1031 from inside to outside. The lower side of the burner cap body 11 is further provided with a first flame transfer combustion groove 1041. The first flame transfer combustion groove 1041 penetrates the outer ring air groove 1031 along the radial direction of the burner cap body 11 to communicate the outside of the burner cap 1 and the ignition needle accommodating groove 3011. An outer ring flame transfer hole 108 communicating with the outer ring air groove 1031 is provided on the side wall of the first flame transfer combustion groove 1041. The ignition needle 3 is installed in the ignition needle accommodating groove 3011. After the ignition needle 3 ignites, the flame can burn along the first flame transfer combustion groove 1041, thereby realizing the flame transfer to the outer fire hole 13.

[0038] For the burner cap 1 provided by the present utility model, both the outer ring flame transfer hole 108 and the ignition needle 3 are provided on the lower side of the burner cap body 11, thereby realizing the shielding of the ignition hole 106 and the ignition needle 3, avoiding the overflow liquid generated during cooking from dripping into the ignition hole 106 and the ignition needle 3, and making the burner cap 1 have the advantage of being easy to clean. The first secondary air through hole 1011 is provided at the center of the burner cap body 11. On the one hand, it makes it difficult for the overflow liquid generated during cooking to drip into the first secondary air through hole 1011, and on the other hand, it can also ensure the combustion efficiency of the burner.

[0039] Optionally, a first inner ring flame transfer hole 203 communicating with the inner ring air groove 1021 is provided on the inner wall of the first secondary air through hole 1011. By providing the first inner ring flame transfer hole 203, the flame transfer to the inner fire hole 12 is realized, and the first inner ring flame transfer hole 203 is provided on the lower side of the burner cap body 11, which can effectively prevent the overflow liquid from dripping into the first inner ring flame transfer hole 203 and causing blockage to the first inner ring flame transfer hole 203, making the burner cap 1 easier to clean.

[0040] Optionally, an inner fire hole opening area 111 located outside the first secondary air through hole 1011 is provided in the middle of the burner cap body 11. The upper side of the inner fire hole opening area 111 is inclined downward from inside to outside. The inner fire hole 12 is opened on the inner fire hole opening area 111. By setting the upper side of the inner fire hole opening area 111 to be inclined downward from inside to outside, the overflow liquid dripping on the inner fire hole opening area 111 can flow outward, avoiding the accumulation of the overflow liquid in the inner fire hole opening area 111 and reducing the blockage of the inner fire hole 12. An outer fire hole opening area 112 extending downward is provided on the outer peripheral side of the burner cap body 11. The outer fire hole 13 is opened on the outer fire hole opening area 112, so that the overflow liquid on the upper side of the burner cap body 11 can directly drip onto the liquid receiving tray of the stove along the outer fire hole opening area 112, reducing the blockage of the outer fire hole 13 by the overflow liquid.

[0041] Optionally, it further includes an occlusion cover 14. A support column 141 connected to the burner cap body 11 is provided on the lower side of the occlusion cover 14. The occlusion cover 14 is located above the first and second air through holes 1011. The first and second air through holes 1011 are located within the vertical projection of the occlusion cover 14. A second air through hole 1012 communicating with the first and second air through holes 1011 is formed among the occlusion cover 14, the support column 141 and the burner cap body 11. By providing the occlusion cover 14, the first and second air through holes 1011 are occluded to prevent liquid overflow from dripping into the first and second air through holes 1011.

[0042] Optionally, the inner flame holes 12 are located outside the vertical projection of the occlusion cover 14, so that the flames ejected from the inner flame holes 12 can be located outside the occlusion cover 14 and then directly act on the bottom of the pot to ensure the power of the burner.

[0043] On the other hand, the present utility model provides a burner, which includes a distributor 2, an ignition needle 3, and the above-mentioned burner cap 1. The distributor 2 includes an outer distributor body 21 and an inner distributor body 22. A duct 300 is formed in the middle of the outer distributor body 21. The inner distributor body 22 is arranged in the duct 300. An ignition needle accommodation hole 3012 is formed between the inner distributor body 22 and the outer distributor body 21. The inner distributor body 22 is provided with a third secondary air through hole 1013, an inner annular air hole 1022, an inner flame transfer combustion groove 105, an ignition hole 106, and a second inner annular flame transfer hole 107. The inner annular air hole 1022 is located outside the third secondary air through hole 1013. An outer annular air hole 1032 is formed in the outer distributor body 21. The third secondary air through hole 1013 communicates with the first secondary air through hole 1011 to form a secondary air passage 101. The inner annular air hole 1022 communicates with the inner annular air groove 1021 to form an inner annular air cavity 102. The outer annular air hole 1032 communicates with the outer annular air groove 1031 to form an outer annular air cavity 103. The ignition needle accommodation hole 3012 communicates with the ignition needle accommodation groove 3011 to form an ignition needle accommodation cavity 301. An outer flame transfer combustion groove 104 is formed by enclosing between the first transfer combustion groove 1041 and the outer distributor body 21. The inner flame transfer combustion groove 105 is radially formed on the lower side of the inner distributor body 22. The inner flame transfer combustion groove 105 communicates the third secondary air through hole 1013 with the ignition needle accommodation hole 3012. The ignition hole 106 is formed on the circumferential side of the inner distributor body 22 and communicates with the inner annular air hole 1022. The ignition hole 106 is located on one side of the inner flame transfer combustion groove 105. The second inner annular flame transfer hole 107 is formed on the groove wall of the inner flame transfer combustion groove 105 and communicates with the inner annular air hole 1022. The ignition needle 3 is arranged in the ignition needle accommodation cavity 301 and is located between the ignition hole 106 and the outer flame transfer combustion groove 104. Specifically, the ignition needle 3 ignites through the ignition hole 106. Since the inner flame transfer combustion groove 105 communicates with the third secondary air through hole 1013, the secondary air is sufficient. The flame generated by the ignition hole 106 will be transmitted along the second inner annular flame transfer hole 107 to the first inner annular flame transfer hole 203, and then the inner fire hole 12 is ignited. At the same time, since the outer flame transfer combustion groove 104 communicates with the outside of the burner cap 1, the secondary air is sufficient. The flame generated by the ignition hole 106 will be transmitted along the outer annular flame transfer hole 108 to the outer fire hole 13, so as to realize the synchronous flame transfer of the inner fire hole 12 and the outer fire hole 13, and the ignition efficiency is relatively high. At the same time, both the ignition hole 106 and the second inner annular flame transfer hole 107 are arranged under the burner cap body 11, which can effectively prevent the overflow liquid from dripping into the ignition hole 106 and the second inner annular flame transfer hole 107, causing blockage to the ignition hole 106 and the second inner annular flame transfer hole 107.

[0044] Optionally, a first fire transfer groove 202 is further formed on the inner fire divider body 22. The first fire transfer groove 202 is formed on the side wall of the third secondary air through hole 1013 and communicates with the inner ring air hole 1022. By providing the first fire transfer groove 202, the flame in the second inner ring fire transfer hole 107 can be more stably transferred to the first inner ring fire transfer hole 203.

[0045] Optionally, a second fire transfer groove 201 is further formed on the inner fire divider body 22. The second fire transfer groove 201 extends from the ignition hole 106 to the second inner ring fire transfer hole 107, and the second fire transfer groove 201 communicates with the inner ring air hole 1022. By providing the second fire transfer groove 201, the fire transfer efficiency can be accelerated and the stability of fire transfer can be improved at the same time.

[0046] Optionally, there are at least two first fire transfer grooves 202, and the at least two first fire transfer grooves 202 are arranged vertically to further improve the stability of fire transfer.

[0047] Optionally, a first chamfer 1050 is provided at the inner port and / or outer port of the inner flame fire transfer combustion groove 105 to facilitate the flow of secondary air in the inner flame fire transfer combustion groove 105. A second chamfer 1040 is provided at the inner port and / or outer port of the outer flame fire transfer combustion groove 104 to facilitate the flow of secondary air in the outer flame fire transfer combustion groove 104.

[0048] Optionally, a second fire transfer combustion groove 1042 corresponding to the first fire transfer combustion groove 1041 is provided on the upper side of the outer fire divider body 21, and an outer flame fire transfer combustion groove 104 is formed by enclosing between the first fire transfer combustion groove 1041 and the second fire transfer combustion groove 1042.

[0049] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A burner cap, characterized in that, The burner cap is integrally formed. The burner cap includes a burner cap body (11). The burner cap body (11) is successively provided with a first secondary air through hole (1011), an inner flame hole (12), and an outer flame hole (13) from inside to outside. The lower side of the burner cap body (11) is successively provided with an inner ring air groove (1021), an ignition needle accommodation groove (3011), and an outer ring air groove (1031) from inside to outside. The lower side of the burner cap body (11) is further provided with a first flame transfer combustion groove (1041). The first flame transfer combustion groove (1041) is arranged along the radial direction of the burner cap body (11) and penetrates through the outer ring air groove (1031) to communicate the outside of the burner cap and the ignition needle accommodation groove (3011). An outer ring flame transfer hole (108) communicating with the outer ring air groove (1031) is provided on the side wall of the first flame transfer combustion groove (1041).

2. The burner cap according to claim 1, wherein A first inner ring flame transfer hole (203) communicating with the inner ring air groove (1021) is provided on the inner wall of the first secondary air through hole (1011).

3. The burner cap according to claim 1, characterized in that, The middle part of the burner cap body (11) is provided with an inner flame hole opening area (111) located outside the first secondary air through hole (1011). The upper side surface of the inner flame hole opening area (111) is inclined downward from inside to outside. The inner flame hole (12) is opened on the inner flame hole opening area (111). The outer peripheral side of the burner cap body (11) is provided with an outer flame hole opening area (112) extending downward. The outer flame hole (13) is opened on the outer flame hole opening area (112).

4. The burner cap according to claim 1, characterized in that, It further includes a shielding cover (14). A support column (141) connected to the burner cap body (11) is provided on the lower side of the shielding cover (14). The shielding cover (14) is located above the first secondary air through hole (1011). The first secondary air through hole (1011) is located within the vertical projection of the shielding cover (14). A second secondary air through hole (1012) communicating with the first secondary air through hole (1011) is formed between the shielding cover (14), the support column (141), and the burner cap body (11).

5. The burner cap according to claim 4, characterized in that, The inner flame hole (12) is located outside the vertical projection of the shielding cover (14).

6. A burner, characterized in that, It includes a fuel distributor (2), an ignition needle (3), and the burner cap (1) described in any one of claims 1-5. The fuel distributor (2) includes an outer fuel distributor body (21) and an inner fuel distributor body (22). A duct (300) is formed in the middle of the outer fuel distributor body (21). The inner fuel distributor body (22) is arranged in the duct (300). An ignition needle accommodation hole (3012) is formed between the inner fuel distributor body (22) and the outer fuel distributor body (21). A third secondary air through-hole (1013), an inner annular air hole (1022), an inner flame transfer combustion groove (105), an ignition hole (106), and a second inner annular flame transfer hole (107) are formed on the inner fuel distributor body (22). The inner annular air hole (1022) is located outside the third secondary air through-hole (1013). An outer annular air hole (1032) is formed on the outer fuel distributor body (21). The third secondary air through-hole (1013) and the first secondary air through-hole (1011) are communicated to form a secondary air passage (101). The inner annular air hole (1022) and the inner annular air groove (1021) are communicated to form an inner annular air cavity (102). The outer annular air hole (1032) and the outer annular air groove (1031) are communicated to form an outer annular air cavity (103). The ignition needle accommodation hole (3012) and the ignition needle accommodation groove (3011) are communicated to form an ignition needle accommodation cavity (301). An outer flame transfer combustion groove (104) is formed by enclosing between the first transfer combustion groove (1041) and the outer fuel distributor body (21). The inner flame transfer combustion groove (105) is radially formed on the lower side of the inner fuel distributor body (22). The inner flame transfer combustion groove (105) communicates the third secondary air through-hole (1013) with the ignition needle accommodation hole (3012). The ignition hole (106) is formed on the circumferential side of the inner fuel distributor body (22) and is communicated with the inner annular air hole (1022). The ignition hole (106) is located on one side of the inner flame transfer combustion groove (105). The second inner annular flame transfer hole (107) is formed on the groove wall of the inner flame transfer combustion groove (105) and is communicated with the inner annular air hole (1022). The ignition needle (3) is arranged in the ignition needle accommodation cavity (301) and is located between the ignition hole (106) and the outer flame transfer combustion groove (104).

7. The burner according to claim 6, characterized in that, A first transfer groove (202) is further formed on the inner fuel distributor body (22). The first transfer groove (202) is formed on the side wall of the third secondary air through-hole (1013) and is communicated with the inner annular air hole (1022).

8. The burner according to claim 7, characterized in that, A second transfer groove (201) is further formed on the inner fuel distributor body (22). The second transfer groove (201) extends from the ignition hole (106) to the second inner annular flame transfer hole (107). The second transfer groove (201) is communicated with the inner annular air hole (1022).

9. The burner according to claim 7, characterized in that, There are at least two of the first flame transfer grooves (202), and the at least two first flame transfer grooves (202) are arranged vertically.

10. The burner according to claim 6, characterized in that, A first chamfer (1050) is provided at the inner port and / or the outer port of the inner flame transfer combustion groove (105), and a second chamfer (1040) is provided at the inner port and / or the outer port of the outer flame transfer combustion groove (104).

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