Combustor and gas stove

Abstract

The utility model discloses a kind of burner and gas stove.The burner includes inner fire cover, including inner fire cover body and the inner fire hole being arranged at the circumferential side of inner fire cover body, the downside of inner fire cover body is provided with the inner ring air groove being communicated with inner fire hole;Outer fire cover, including outer fire cover body and the outer fire hole being arranged at the circumferential side of outer fire cover body, inner fire cover body is set in the inside of outer fire cover body, secondary air passage is set between inner fire cover body and outer fire cover body, the upside of outer fire cover body is provided with slit fire hole, the downside of fire cover body is provided with the outer ring air groove being communicated with outer fire hole, slit fire hole, the upside of outer fire cover body includes outer side and inner side, inner side is set to be inclined downward from outside to inside, slit fire hole is arranged between outer side and inner side.The utility model proposes a kind of burner, flame distribution uniformity, and then improve the heating uniformity to cooking pot.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a burner and a gas stove. Background Technology

[0002] The existing one-touch stir-fry function on gas stoves increases the heat by 10% on the central ring flame, resulting in a slightly elongated flame with minimal variation, which is easily criticized by consumers. Furthermore, the burner's heat distribution is not uniform enough, leading to less even heating of cooking utensils.

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

[0004] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes a burner with uniform flame distribution, thereby improving the uniformity of heating of the cooking pot.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A burner, comprising:

[0007] The inner flame cap includes an inner flame cap body and an inner flame hole disposed around the inner flame cap body. An inner annular gas groove communicating with the inner flame hole is disposed on the lower side of the inner flame cap body.

[0008] An outer flame cap includes an outer flame cap body and outer flame holes disposed around the periphery of the outer flame cap body. An inner flame cap body is disposed inside the outer flame cap body. A secondary air channel is provided between the inner flame cap body and the outer flame cap body. A slit flame hole is provided on the upper side of the outer flame cap body. An outer annular air groove is provided on the lower side of the flame cap body, which communicates with both the outer flame hole and the slit flame hole. The upper side of the outer flame cap body includes an outer side and an inner side. The inner side is inclined downward from the outside to the inside. The slit flame hole is disposed between the outer side and the inner side.

[0009] Optionally, an upward-opening slot is formed between the outer side and the inner side, and the slot fire hole is formed at the bottom of the slot.

[0010] Optionally, the slot is inclined outward from top to bottom.

[0011] Optionally, the outer surface is inclined downwards from the inside to the outside.

[0012] Optionally, the upper side of the inner flame cover body is provided with a stir-frying fire hole, and the lower side of the inner flame cover body is also provided with a stir-frying gas groove located inside the inner ring gas groove, and the stir-frying gas groove is connected to the stir-frying fire hole.

[0013] Optionally, it also includes a gas supply base disposed on the lower side of the outer flame cap and the inner flame cap. The gas supply base includes a base body, on which a stir-fry gas chamber, an inner ring gas chamber, and an outer ring gas chamber are formed. The stir-fry gas chamber is located inside the inner ring gas chamber. The outer ring gas chamber is disposed adjacent to the inner ring gas chamber. The stir-fry gas chamber is connected to the stir-fry gas groove to form a stir-fry gas channel. The inner ring gas chamber is connected to the inner ring gas groove to form an inner ring gas channel. The outer ring gas groove is connected to the outer ring gas chamber to form an outer ring gas channel.

[0014] Optionally, the system further includes a gas supply base disposed on the lower side of the outer flame cap and the inner flame cap. The gas supply base includes a base body, on which a stir-fry gas chamber, an inner ring gas chamber, and an outer ring gas chamber are sequentially formed from the inside to the outside. The base body also has a connecting gas channel extending from the inside to the outside. The inner end of the connecting gas channel is connected to the upper end of the outer ring gas chamber. The outer side of the base body has a mixing gas groove with its opening facing upward and connected to the outer end of the connecting gas channel. The stir-fry gas chamber and the stir-fry gas groove are connected to form a stir-fry gas channel. The inner ring gas chamber and the inner ring gas groove are connected to form an inner ring gas channel. The outer ring gas chamber and the connecting gas channel are connected to form an outer ring gas channel. The outer ring gas groove and the mixing gas groove are connected to form an outer ring mixing chamber.

[0015] Optionally, it also includes an ejector assembly and a stir-frying pipe. The ejector assembly includes an outer ejector tube and an inner ejector tube. The outer ejector tube extends horizontally and communicates with the outer annular air chamber. The inner ejector tube extends horizontally and communicates with the inner annular air chamber. The stir-frying pipe is connected to the stir-frying air channel.

[0016] Optionally, the inner flame cap body and the outer flame cap body are spaced apart to form a secondary air passage.

[0017] Another aspect of this utility model provides a gas stove, characterized in that it includes the above-mentioned burner.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] The burner provided by this utility model improves the uniformity of flame distribution by creating slit flame holes on the side of the outer burner cap, thereby increasing the heating uniformity of the cooking pot. The downward-sloping inner side creates a negative pressure zone, facilitating the upward movement of secondary air from the secondary air passage to replenish the secondary air needed for combustion in the slit flame holes. It also improves the ease of cleaning the burner cap, allowing spilled liquids to flow downwards along the sloping inner side to the cooktop's drip tray, preventing dripping into the slit flame holes. Furthermore, it enhances the burner's thermal efficiency, as some of the high-temperature heat from the burner is radiated to the bottom of the cooking pot via the downward-sloping inner side. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the burner provided in a specific embodiment of this utility model;

[0021] Figure 2 yes Figure 1 Top view;

[0022] Figure 3 yes Figure 1 Sectional view at point AA;

[0023] Figure 4 yes Figure 1 Exploded view;

[0024] Figure 5 This is a three-dimensional structural diagram of the outer flame cap of the burner provided in a specific embodiment of this utility model;

[0025] Figure 6 yes Figure 5 Top view;

[0026] Figure 7 yes Figure 6 Sectional view at point BB;

[0027] Figure 8 This is a three-dimensional structural diagram of the burner provided in a specific embodiment two of this utility model;

[0028] Figure 9 yes Figure 8 Top view;

[0029] Figure 10 yes Figure 9 Sectional view at CC;

[0030] Figure 11 yes Figure 8 The exploded diagram.

[0031] In the picture:

[0032] 1. Outer flame cap; 11. Outer flame cap body; 111. Outer side surface; 112. Inner side surface; 12. Outer flame hole; 13. Slit groove; 131. Slit flame hole; 14. Outer annular gas groove;

[0033] 2. Inner burner cap; 21. Inner burner cap body; 22. Inner burner hole; 23. Stir-fry burner hole; 24. Stir-fry gas groove; 25. Inner ring gas groove;

[0034] 3. Gas supply base; 31. Base body; 32. Outer ring air chamber; 33. Inner ring air chamber; 34. Stir-fry air chamber; 35. Connecting air passage; 36. Mixing tank;

[0035] 4. Ejector assembly; 41. External ejector tube; 42. Internal ejector tube;

[0036] 5. Stir-fry pipes;

[0037] 6. Partition plate; 61. Through hole;

[0038] 100. Secondary air passage. Detailed Implementation

[0039] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0040] Example 1

[0041] Please refer to Figures 1-7 This utility model provides a burner, including an inner burner cap 2 and an outer burner cap 1. The inner burner cap 2 includes an inner burner cap body 21 and inner burner holes 22 disposed around the inner burner cap body 21. An inner annular gas groove 25 communicating with the inner burner holes 22 is provided on the lower side of the inner burner cap body 21. The outer flame cap 1 includes an outer flame cap body 11 and outer flame holes 12 disposed around the outer flame cap body 11. The inner flame cap body 21 is disposed inside the outer flame cap body 11. A secondary air channel 100 is provided between the inner flame cap body 21 and the outer flame cap body 11. A slit flame hole 131 is provided on the upper side of the outer flame cap body 11. An outer annular air groove 14 is provided on the lower side of the flame cap body, which is connected to both the outer flame hole 12 and the slit flame hole 131. The upper side of the outer flame cap body 11 includes an outer side 111 and an inner side 112. The inner side 112 is inclined downward from the outside to the inside. The slit flame hole 131 is disposed between the outer side 111 and the inner side 112.

[0042] The burner provided by this utility model, by providing slit flame holes 131 on the upper side of the outer burner cap 1, adds a slit flame between the inner and outer ring flames, thereby improving the uniformity of flame distribution and thus improving the heating uniformity of the cooking pot. By providing an inner side surface 112 that slopes downwards from the outside to the inside, a negative pressure zone is formed at the inner side surface 112, which facilitates the upward movement of secondary air from the secondary air channel 100 along the downward-sloping inner side surface 112 to replenish the secondary air needed for combustion in the slit flame holes 131. Furthermore, it improves the ease of cleaning the burner cap, allowing spilled liquid to flow downwards along the downward-sloping inner side surface 112 onto the stove's drip tray, preventing spilled liquid from dripping into the slit flame holes 131. Finally, it improves the thermal efficiency of the burner, as some of the high-temperature heat from the burner is radiated to the bottom of the cooking pot through the downward-sloping inner side surface 112.

[0043] Optionally, an upward-facing slit groove 13 is provided between the outer side 111 and the inner side 112, and the slit flame hole 131 is provided at the bottom of the slit groove 13 to stabilize the flame and improve the flame stability at the slit flame hole 131.

[0044] Optionally, the slit groove 13 is inclined outward from top to bottom so that the flame at the slit flame hole 131 can extend inward, thereby increasing the contact area with the air at the secondary air passage and improving combustion efficiency.

[0045] Optionally, the outer side 111 is inclined downward from the inside to the outside to facilitate the overflow of cooking liquid.

[0046] Optionally, a high-heat flame hole 23 is provided on the upper side of the inner burner cap body 21, and a high-heat gas groove 24 located inside the inner ring gas groove 25 is also provided on the lower side of the inner burner cap body 21. The high-heat gas groove 24 is connected to the high-heat flame hole 23. By providing the high-heat flame hole 23, the high-heat function is realized. On the other hand, when the high-heat function is activated, the user can intuitively see the increase in the flame range, thereby improving the user experience. Furthermore, by providing the high-heat flame hole 23 on the upper side of the inner burner cap body 21, the high-heat flame can be concentrated at the bottom of the cooking pot. This solves the problem in the prior art where increasing the length of the inner and outer ring flames to increase the heat results in the flame being further deviated from the bottom of the pot after being lengthened, leading to poor high-heat effect.

[0047] Optionally, it also includes a gas supply base 3 disposed on the lower side of the outer burner cap 1 and the inner burner cap 2. The gas supply base 3 includes a base body 31, on which a stir-fry gas chamber 34, an inner ring gas chamber 33, and an outer ring gas chamber 32 are formed. The stir-fry gas chamber 34 is located inside the inner ring gas chamber 33. The outer ring gas chamber 32 is disposed adjacent to the inner ring gas chamber 33. The stir-fry gas chamber 34 is connected to the stir-fry gas groove 24 to form a stir-fry gas passage. The inner ring gas chamber 33 is connected to the inner ring gas groove 25 to form an inner ring gas passage. The outer ring gas groove 14 is connected to the outer ring gas chamber 32 to form an outer ring gas passage. In this way, the gas can directly enter the outer ring gas groove 14 through the outer ring gas chamber 32 to supply gas to the outer ring burner holes, reduce the pressure loss of the gas and air mixture, increase the primary air coefficient, and enable the gas to mix with more air, thereby improving the combustion efficiency.

[0048] In this embodiment, to avoid excessive pressure of the air and gas mixture flowing from the outer annular gas cavity 32 to the outer annular gas groove 14, and to ensure that the air and gas mixture is distributed more evenly in the outer annular gas groove 14, thereby improving the uniformity of the distribution of the gas and air mixture at the outer flame hole 12, a baffle plate 6 is provided between the outer annular gas groove 14 and the outer annular gas cavity 32. The baffle plate 6 has multiple through holes 61 to provide a certain degree of shielding and guidance for the air and gas mixture at that location.

[0049] Optionally, it also includes an ejector assembly 4 and a stir-fry pipe 5. The ejector assembly 4 includes an outer ejector tube 41 and an inner ejector tube 42. The outer ejector tube 41 extends horizontally and communicates with the outer annular air chamber 32. The inner ejector tube 42 extends horizontally and communicates with the inner annular air chamber 33. The stir-fry pipe 5 is connected to the stir-fry air channel 24.

[0050] Optionally, the inner flame cover body 21 and the outer flame cover body 11 are spaced apart to form a secondary air passage 100.

[0051] Optionally, an ignition hole is also provided on the inner flame cover body 21 to ignite the inner ring flame.

[0052] Optionally, the outer flame cover body 11 is also provided with a flame transfer groove. The flame transfer groove connects the secondary air passage and the outer side of the outer flame cover body 11. The flame transfer groove is provided with a gas transfer hole that communicates with the outer annular gas groove 14. The gas in the outer annular gas groove 14 enters the flame transfer groove through the gas transfer hole. The inner annular flame is transferred to the outer flame hole 12 through the flame transfer groove to form an outer annular flame.

[0053] Example 2

[0054] Please refer to Figures 8-11The difference between Embodiment 2 and Embodiment 1 is that, from the inside to the outside, the base body 31 is provided with a stir-frying air chamber 34, an inner ring air chamber 33 and an outer ring air chamber 32. The base body 31 is also provided with a connecting air channel 35 extending from the inside to the outside. The inner end of the connecting air channel 35 is connected to the upper end of the outer ring air chamber 32. The outside of the base body 31 is provided with a mixing groove 36 with the opening facing upward and connected to the outer end of the connecting air channel 35. The stir-frying air chamber 34 and the stir-frying air groove 24 are connected to form a stir-frying air channel. The inner ring air chamber 33 and the inner ring air groove 25 are connected to form an inner ring air channel. The outer ring air chamber 32 and the connecting air channel 35 are connected to form an outer ring air channel. The outer ring air groove 14 and the mixing groove 36 are connected to form an outer ring mixing chamber. In this embodiment, the gas flows sequentially through the outer ejector tube 41, the outer annular gas chamber 32, the connecting gas passage 35, and the mixing chamber before entering the outer flame hole 12 for combustion. During this overpass, the gas and air undergo flow impacts in multiple directions, resulting in a higher degree of mixing uniformity, which can also improve combustion efficiency. On the other hand, it can also prevent the gas pressure of the air-gas mixture from being too high, which would cause the outer annular flame to be uneven, making the outer annular flame combustion more stable.

[0055] Another aspect of this utility model provides a gas stove, characterized in that it includes the above-mentioned burner.

[0056] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A burner, characterized in that, include: The inner flame cap (2) includes an inner flame cap body (21) and an inner flame hole (22) disposed around the inner flame cap body (21). The lower side of the inner flame cap body (21) is provided with an inner annular gas groove (25) communicating with the inner flame hole (22). The outer flame cap (1) includes an outer flame cap body (11) and an outer flame hole (12) disposed around the outer flame cap body (11). The inner flame cap body (21) is disposed inside the outer flame cap body (11). A secondary air channel (100) is provided between the inner flame cap body (21) and the outer flame cap body (11). A slit flame hole (131) is provided on the upper side of the outer flame cap body (11). An outer annular air groove (14) is provided on the lower side of the flame cap body (11) and communicates with both the outer flame hole (12) and the slit flame hole (131). The upper side of the outer flame cap body (11) includes an outer side (111) and an inner side (112). The inner side (112) is inclined downward from the outside to the inside. The slit flame hole (131) is disposed between the outer side (111) and the inner side (112).

2. The burner according to claim 1, characterized in that, A slot (13) with an upward opening is provided between the outer side (111) and the inner side (112), and the slot fire hole (131) is provided at the bottom of the slot (13).

3. The burner according to claim 2, characterized in that, The slot (13) is inclined outward from top to bottom.

4. The burner according to claim 2, characterized in that, The outer side (111) is inclined downward from the inside to the outside.

5. The burner according to any one of claims 1-4, characterized in that, The upper side of the inner fire cover body (21) is provided with a stir-frying fire hole (23), and the lower side of the inner fire cover body (21) is also provided with a stir-frying air groove (24) located inside the inner ring air groove (25), and the stir-frying air groove (24) is connected to the stir-frying fire hole (23).

6. The burner according to claim 5, characterized in that, It also includes a gas supply base (3) disposed on the lower side of the outer flame cap (1) and the inner flame cap (2). The gas supply base (3) includes a base body (31). The base body (31) is provided with a stir-frying gas chamber (34), an inner ring gas chamber (33) and an outer ring gas chamber (32). The stir-frying gas chamber (34) is disposed inside the inner ring gas chamber (33). The outer ring gas chamber (32) is disposed adjacent to the inner ring gas chamber (33). The stir-frying gas chamber (34) is connected to the stir-frying gas groove (24) to form a stir-frying gas passage. The inner ring gas chamber (33) is connected to the inner ring gas groove (25) to form an inner ring gas passage. The outer ring gas groove (14) is connected to the outer ring gas chamber (32) to form an outer ring gas passage.

7. The burner according to claim 5, characterized in that, It also includes a gas supply base (3) disposed on the lower side of the outer flame cap (1) and the inner flame cap (2). The gas supply base (3) includes a base body (31). The base body (31) has a stir-fry gas chamber (34), an inner ring gas chamber (33), and an outer ring gas chamber (32) arranged sequentially from the inside to the outside. The base body (31) is also provided with a connecting gas channel (35) extending from the inside to the outside. The inner end of the connecting gas channel (35) is connected to the upper end of the outer ring gas chamber (32). The base body (31) has an upward-facing mixing groove (36) on its exterior, which is connected to the outer end of the connecting air passage (35). The stir-fry air chamber (34) is connected to the stir-fry air groove (24) to form a stir-fry air passage. The inner ring air chamber (33) is connected to the inner ring air groove (25) to form an inner ring air passage. The outer ring air chamber (32) is connected to the connecting air passage (35) to form an outer ring air passage. The outer ring air groove (14) is connected to the mixing groove (36) to form an outer ring mixing chamber.

8. The burner according to claim 6 or 7, characterized in that, It also includes an ejector assembly (4) and a stir-fry pipe (5). The ejector assembly (4) includes an outer ejector tube (41) and an inner ejector tube (42). The outer ejector tube (41) extends horizontally and communicates with the outer annular air chamber (32). The inner ejector tube (42) extends horizontally and communicates with the inner annular air chamber (33). The stir-fry pipe (5) is connected to the stir-fry air channel (24).

9. The burner according to claim 6 or 7, characterized in that, The inner flame cap body (21) and the outer flame cap body (11) are spaced apart to form the secondary air passage (100).

10. A gas stove, characterized in that, Includes the burner according to any one of claims 1-9.

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