Fire divider and hob

By increasing the thickness of the sidewalls on the outer and inner circumferential surfaces of the inner burner to form a convex-concave structure, the problems of backfire risk and insufficient mixing chamber space are solved, achieving more efficient combustion and uniform heating, and reducing production costs.

CN116877986BActive Publication Date: 2026-04-24NINGBO FOTILE KITCHEN WARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO FOTILE KITCHEN WARE CO LTD
Filing Date
2023-08-01
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing internal burner design has the risk of backfire and insufficient mixing chamber space, resulting in poor combustion efficiency and quality, as well as excessive overall size and weight.

Method used

The design increases the sidewall thickness at certain locations on both the outer and inner circumferential surfaces, forming convex and concave structures. The flame holes are staggered to maintain the mixing chamber space and increase the flame hole depth, thereby reducing backfire.

Benefits of technology

It improves combustion efficiency and quality, ensures uniform gas mixing, avoids localized overcooking or undercooking of food, reduces production costs, and enhances structural stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of fire divider and cooking utensils, it includes outer circumferential surface and inner circumferential surface, the outer circumferential surface includes outer circumferential convex surface and outer circumferential concave surface, the outer circumferential convex surface is outward convex relative to the outer circumferential concave surface;The inner circumferential surface includes inner circumferential convex surface and inner circumferential concave surface, the inner circumferential convex surface is inward convex relative to the inner circumferential concave surface;Along the radial direction of the fire divider, the position of the outer circumferential convex surface and the inner circumferential concave surface corresponds, the position of the outer circumferential concave surface and the inner circumferential convex surface corresponds, and the outer circumferential convex surface, the outer circumferential concave surface, the inner circumferential convex surface and the inner circumferential concave surface are all distributed with fire hole.Fire divider only increases the thickness of part of side wall outward (at outer circumferential convex surface) on outer circumferential surface, and only increases the thickness of part of side wall inward (at inner circumferential convex surface) on inner circumferential surface, so that the volume and weight of fire divider are not too large, and the reasonable space of mixing chamber can be maintained, which is beneficial to the full mixing of gas in the mixing chamber, while the depth of the fire hole is increased, and the risk of backfire is reduced.
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Description

Technical Field

[0001] This invention relates to the field of gas stoves, specifically to a flame distributor and a stove. Background Technology

[0002] The internal burner is a crucial component of gas stoves, used to ignite the gas and initiate the combustion process. However, existing internal burner designs present several challenges and problems.

[0003] First, to prevent backfire, a common solution is to increase the depth of the burner holes by increasing the thickness of the side wall of the inner burner. However, increasing the thickness of the side wall may result in an excessively large overall size and weight of the inner burner, which does not conform to the design trends of modern gas stoves and thus affects its performance.

[0004] Furthermore, the design of the internal ignition distributor needs to ensure that the gas is fully mixed in the mixing chamber to achieve uniform combustion. However, increasing the thickness of the side walls inward will reduce the space of the mixing chamber, which may lead to poor gas mixing and affect ignition efficiency and combustion quality. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defect of backfire risk in the existing flame spreader, and to provide a flame spreader and a stove.

[0006] The present invention solves the above-mentioned technical problems by the following technical solution: a flame distributor, which includes an outer peripheral surface and an inner peripheral surface, wherein the outer peripheral surface includes an outer peripheral convex surface and an outer peripheral concave surface, and the outer peripheral convex surface protrudes outward relative to the outer peripheral concave surface;

[0007] The inner peripheral surface includes an inner peripheral convex surface and an inner peripheral concave surface, wherein the inner peripheral convex surface protrudes inward relative to the inner peripheral concave surface;

[0008] Along the radial direction of the flame distributor, the outer circumferential convex surface and the inner circumferential concave surface are positioned opposite each other, and the outer circumferential concave surface and the inner circumferential convex surface are positioned opposite each other. Flame holes are distributed on the outer circumferential convex surface, the outer circumferential concave surface, the inner circumferential convex surface, and the inner circumferential concave surface.

[0009] In this design, the burner's outer circumference surface has its sidewall thickness increased only outwards (at the outer convex surface), and its inner circumference surface has its sidewall thickness increased only inwards (at the inner convex surface). This design prevents the burner from becoming too large or heavy, while maintaining a reasonable space in the mixing chamber, which is beneficial for the thorough mixing of the gas within the chamber. Furthermore, the corresponding positions of the convex and concave surfaces on the outer and inner circumference surfaces of the burner are combined to increase the depth of the burner holes, thereby reducing backfire and improving the stove's combustion efficiency and combustion quality.

[0010] Preferably, the outer convex surface and the outer concave surface are distributed sequentially along the circumference of the flame distributor, and the inner convex surface and the inner concave surface are distributed sequentially along the circumference of the flame distributor.

[0011] In this design, the outer convex and concave surfaces are distributed sequentially along the circumference of the flame distributor, as are the inner convex and concave surfaces. The flame ranges of the outer convex and concave surfaces are different, resulting in a staggered distribution of flame ranges along the circumference of the flame distributor. This makes the flame range larger and more uniform, improving combustion efficiency and heating speed of the gas stove, while also increasing flame stability.

[0012] Preferably, the number of the outer peripheral convex surfaces and the outer peripheral concave surfaces is at least two and they are spaced apart, and the number of the inner peripheral convex surfaces and the inner peripheral concave surfaces is at least two and they are spaced apart.

[0013] In this design, the increased number of flame holes on the burner results in a better staggered distribution, allowing for a more even flame coverage of the bottom of the cookware. This ensures that every part of the cookware bottom is fully heated, resulting in more even cooking and preventing overcooked or undercooked areas. Furthermore, the even distribution of the flame on the bottom of the cookware allows for more efficient heat transfer, improving heat conduction efficiency and enabling the cookware to reach the required temperature more quickly, thus saving energy and gas consumption.

[0014] Preferably, the number of the outer peripheral convex surface, the outer peripheral concave surface, the inner peripheral convex surface, and the inner peripheral concave surface are all three and are evenly distributed.

[0015] In this design, the use of a three-faced structure simplifies the structure and reduces manufacturing difficulty compared to designs with four or more faces. This makes the manufacturing process easier and more efficient, reducing production costs and improving production efficiency.

[0016] Preferably, the central angles corresponding to the outer convex surface and the outer concave surface are equal, and the central angles corresponding to the inner convex surface and the inner concave surface are equal.

[0017] In this design, since the central angles corresponding to the outer convex and outer concave surfaces are equal, and the central angles corresponding to the inner convex and inner concave surfaces are equal, the flame holes are more evenly distributed on the flame distributor, which improves the effect of the staggered distribution of the flame holes. This even distribution ensures that the flame covers a uniform area on the bottom of the cookware, making the food cook more evenly and avoiding the phenomenon of local overcooking or undercooking of food.

[0018] Preferably, the outer convex surface and the outer concave surface are outer circumferential surfaces;

[0019] And / or, the inner circumferential convex surface and the inner circumferential concave surface are inner circumferential surfaces.

[0020] In this design, the outer convex and concave surfaces are designed as outer circumferential surfaces. The outer circumferential surfaces can better withstand external pressure and force, thereby increasing the durability and lifespan of the ignition distributor and helping to improve its structural stability. The inner convex and concave surfaces are designed as inner circumferential surfaces, which can increase the space of the mixing chamber, which is conducive to the full mixing of the gas in the mixing chamber. This helps to achieve uniform combustion and improve ignition efficiency and combustion quality.

[0021] Preferably, the distance from the outer convex surface to the inner concave surface is equal to the distance from the outer concave surface to the inner convex surface.

[0022] In this design, because the distances are equal, the depths of the burner holes on the outer and inner circumferential surfaces are also equal. This design makes the burner hole depth more uniform, which helps to improve the stability and consistency of the flame. In addition, the depth of the burner hole has a direct impact on the control of the flow rate. The uniformity of the burner hole depth makes it easier to control the flow rate and hole diameter, thereby enabling more precise control of the burner hole intensity to meet the needs of different gas stoves and cooking requirements.

[0023] Preferably, the flame holes are distributed in at least two rows along the circumference of the flame distributor, and the at least two rows of flame holes are staggered.

[0024] In this design, the flame holes are distributed in at least two rows along the circumference of the burner. The arrangement of multiple rows of flame holes allows the flame to cover the bottom of the cookware more evenly, increasing the flame distribution range and coverage area, which is beneficial for achieving uniform heating of the cookware. The staggered distribution of the flame holes means that the positions of adjacent rows of flame holes are staggered and not on the same straight line. This design further increases the flame coverage area and enhances the staggered distribution of the flame, thereby heating the bottom of the cookware more evenly.

[0025] Preferably, the radial dimension of the fire distributor gradually increases from the top surface to the bottom surface of the fire distributor.

[0026] In this design, the size and stability area of ​​the burner's bottom have been increased, making the burner more stable during use and effectively preventing the gas stove from shaking or tipping over, thus improving safety. Since the mixing chamber is located at the bottom of the burner, this design allows the internal space of the burner to gradually expand, which is conducive to the full mixing of gas in the mixing chamber. The full mixing of gas can achieve uniform combustion, improving ignition efficiency and combustion quality.

[0027] The present invention also discloses a stove that includes the above-mentioned burner.

[0028] The positive and progressive effects of this invention are as follows: the burner only increases the thickness of the side wall on the outer peripheral surface (at the outer peripheral convex surface) and only increases the thickness of the side wall on the inner peripheral surface (at the outer peripheral convex surface). This prevents the overall size and weight of the burner from becoming too large and also maintains a reasonable space in the mixing chamber, which is conducive to the full mixing of gas in the mixing chamber. In addition, the corresponding positions on the outer and inner peripheral surfaces of the burner are combined to increase the depth of the flame holes, thereby reducing the occurrence of backfire and improving the combustion efficiency and combustion quality of the stove. Attached Figure Description

[0029] Figure 1 A schematic diagram of the structure of the fire distributor according to a preferred embodiment of the present invention (I).

[0030] Figure 2 A schematic diagram (II) of the structure of the fire distributor according to a preferred embodiment of the present invention.

[0031] Figure 3 This is a top view of the fire distributor according to a preferred embodiment of the present invention.

[0032] Figure 4 This is a bottom view of the fire distributor according to a preferred embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures

[0034] Flame distributor 1

[0035] outer peripheral surface 11

[0036] Peripheral convex surface 111

[0037] Peripheral concave surface 112

[0038] Inner circumferential surface 12

[0039] Inner peripheral convex surface 121

[0040] Inner circumferential concave surface 122

[0041] Fire Hole 13

[0042] Top surface 14

[0043] Bottom 15

[0044] Zhou Xiang L

[0045] Radial R Detailed Implementation

[0046] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0047] like Figures 1-4As shown, this embodiment discloses a stove, which includes a burner 1. The burner 1 includes an outer peripheral surface 11 and an inner peripheral surface 12. The outer peripheral surface 11 includes an outer peripheral convex surface 111 and an outer peripheral concave surface 112. The outer peripheral convex surface 111 protrudes outward relative to the outer peripheral concave surface 112. The inner peripheral surface 12 includes an inner peripheral convex surface 121 and an inner peripheral concave surface 122. The inner peripheral convex surface 121 protrudes inward relative to the inner peripheral concave surface 122. Along the radial direction R of the burner 1, the outer peripheral convex surface 111 and the inner peripheral concave surface 122 are positioned correspondingly, and the outer peripheral concave surface 112 and the inner peripheral convex surface 121 are positioned correspondingly. Flame holes 13 are distributed on the outer peripheral convex surface 111, the outer peripheral concave surface 112, the inner peripheral convex surface 121, and the inner peripheral concave surface 122.

[0048] Specifically, the outer peripheral surface 11 of the flame distributor 1 is the outer peripheral surface of the flame distributor 1, and the inner peripheral surface 12 is the inner peripheral surface of the flame distributor 1. The inner peripheral surface 12 is the surface of the side wall of the internal chamber, i.e., the mixing chamber. Along the radial direction R of the flame distributor 1, the outer peripheral convex surface 111 and the inner peripheral concave surface 122 are positioned opposite each other, and the outer peripheral concave surface 112 and the inner peripheral convex surface 121 are positioned opposite each other. This means that at the same position along the radial direction of the flame distributor 1, either the outer peripheral convex surface 111 of the outer peripheral surface 11 is opposite to the inner peripheral concave surface 122 of the inner peripheral surface 12, or the outer peripheral concave surface 112 of the outer peripheral surface 11 is opposite to the inner peripheral convex surface 121, so that the concave and convex structures of the outer peripheral surface 11 and the concave and convex structures of the inner peripheral surface 12 complement each other.

[0049] In this embodiment, the burner 1 has its outer peripheral surface 11 thickened only outward (at the outer peripheral convex surface 111), and its inner peripheral surface 12 thickened only inward (at the inner peripheral convex surface 121). This design prevents the burner 1 from becoming too large in size and weight, while maintaining a reasonable space in the mixing chamber, which is conducive to the thorough mixing of the gas in the mixing chamber. In addition, the corresponding positions of the convex and concave surfaces on the outer peripheral surface 11 and the inner peripheral surface 12 of the burner 1 are combined to ensure the depth of the burner holes 13, thereby reducing the occurrence of backfire and improving the combustion efficiency and combustion quality of the stove.

[0050] like Figures 1-4As shown, the outer convex surface 111 and the outer concave surface 112 are sequentially distributed along the circumferential direction L of the burner 1, and the inner convex surface 121 and the inner concave surface 122 are sequentially distributed along the circumferential direction L of the burner 1. Since the outer convex surface 111 and the outer concave surface 112 are sequentially distributed along the circumferential direction of the burner 1, and the inner convex surface 121 and the inner concave surface 122 are also sequentially distributed along the circumferential direction of the burner 1, the flame ranges of the outer convex surface 111 and the outer concave surface 112 are different, resulting in a staggered distribution along the circumferential flame range of the burner 1. This makes the flame range larger and more uniform, improving combustion efficiency and the heating speed of the gas stove, while also increasing flame stability. Of course, in other alternative embodiments, the outer convex surface 111 and the outer concave surface 112, as well as the inner convex surface 121 and the inner concave surface 122, can also be sequentially distributed along the direction from the top surface 14 to the bottom surface 15 of the burner 1.

[0051] like Figures 1-4 As shown, there are three outer convex surfaces 111, three outer concave surfaces 112, three inner convex surfaces 121, and three inner concave surfaces 122, all evenly spaced. By using a design with three convex and concave surfaces, the structure of the fire distributor 1 is simpler and the manufacturing difficulty is reduced compared to designs with four or more convex and concave surfaces. This makes the manufacturing process of the fire distributor 1 easier and more efficient, helping to reduce production costs and improve production efficiency.

[0052] In other alternative embodiments, the outer convex surface 111 and the outer concave surface 112 may be two or more in number and spaced apart. Similarly, the inner convex surface 121 and the inner concave surface 122 may be two or more in number and spaced apart. This structural configuration, by increasing the number of flame holes 13, results in a better staggered distribution of the flame holes 13 on the burner 1, and a more uniform flame coverage of the bottom of the cookware. This ensures that every part of the bottom of the cookware is fully heated, resulting in more even cooking of the food and avoiding localized overcooking or undercooking. Moreover, due to the uniform distribution of the flame on the bottom of the cookware, heat energy can be transferred to the cookware more effectively, thereby improving heat conduction efficiency and allowing the cookware to reach the required temperature more quickly, saving energy and gas consumption.

[0053] like Figure 3 and Figure 4As shown, the central angles corresponding to the outer convex surface 111 and the outer concave surface 112 are equal, and the central angles corresponding to the inner convex surface 121 and the inner concave surface 122 are equal. That is, the central angles corresponding to the outer convex surface 111, the outer concave surface 112, the inner convex surface 121, and the inner concave surface 122 are all 60°. Because the central angles corresponding to the outer convex surface 111 and the outer concave surface 112 are equal, and the central angles corresponding to the inner convex surface 121 and the inner concave surface 122 are equal, the flame holes 13 are more evenly distributed on the flame distributor 1, which improves the effect of the staggered distribution of the flame holes 13. This even distribution ensures that the flame covers a uniform area on the bottom of the pot, making the food cook more evenly and avoiding the phenomenon of local overcooking or undercooking of the food. Of course, in other alternative embodiments, the angles of the corresponding central angles of the outer convex surface 111, the outer concave surface 112, the inner convex surface 121, and the inner concave surface 122 can also be any other arbitrary angles.

[0054] Specifically, the outer convex surface 111 and the outer concave surface 112 are outer circumferential surfaces; the inner convex surface 121 and the inner concave surface 122 are inner circumferential surfaces. The outer circumferential surface is the outer circumferential surface formed by the body of revolution, and the inner circumferential surface is the inner circumferential surface formed by the body of revolution, such as a cylindrical surface, a conical surface, etc.

[0055] In this embodiment, the outer convex surface 111 and the outer concave surface 112 are designed as outer circumferential surfaces. These outer circumferential surfaces can better withstand external pressure and force, thereby increasing the durability and lifespan of the ignition distributor 1 and contributing to its structural stability. The inner convex surface 121 and the inner concave surface 122 are designed as inner circumferential surfaces, which increases the space of the mixing chamber, facilitating thorough mixing of the combustion gas within the chamber. This contributes to uniform combustion, improving ignition efficiency and combustion quality. Of course, in other alternative embodiments, the outer convex surface 111, the outer concave surface 112, the inner convex surface 121, and the inner concave surface 122 can also be planar.

[0056] Specifically, the distance from the outer convex surface 111 to the inner concave surface 122 is equal to the distance from the outer concave surface 112 to the inner convex surface 121. These distances are radially along the burner 1 from the outer convex surface 11 to the inner convex surface 12. Because these distances are equal, the depths of the flame holes 13 on both the outer and inner convex surfaces 11 and 12 are equal. This design makes the depth of the flame holes 13 more uniform, which helps improve the stability and consistency of the flame. Furthermore, the depth of the flame holes 13 directly affects the control of the flow rate. The uniformity of the flame hole depth makes it easier to control the flow rate and aperture of the flame holes 13, thereby allowing for more precise control of the flame hole intensity to meet the needs of different gas stoves and cooking requirements. Of course, in other alternative embodiments, the distances from the outer convex surface 111 to the inner concave surface 122 and from the outer concave surface 112 to the inner convex surface 121 may not be equal.

[0057] like Figure 1 and Figure 2 As shown, from the top surface 14 to the bottom surface 15 of the burner 1, the radial dimension of the burner 1 gradually increases, meaning the burner 1 has a frustum-like shape. This design increases the size and stable area of ​​the bottom of the burner 1, making it more stable during use and effectively preventing the gas stove from shaking or tipping over, thus improving safety. Since the mixing chamber is located at the bottom of the burner 1, this design allows the internal space of the burner 1 to gradually expand, which is beneficial for the gas to mix thoroughly within the mixing chamber. Thorough mixing of the gas enables uniform combustion, improving ignition efficiency and combustion quality. Of course, in other alternative embodiments, the upper and lower dimensions of the burner 1 can also be equal.

[0058] like Figure 1 He Ru Figure 3 As shown, at least two rows of flame holes 13 are distributed along the circumference of the burner 1, and these at least two rows of flame holes 13 are staggered. The multiple rows of flame holes 13 allow the flame to cover the bottom of the cookware more evenly, increasing the flame distribution range and coverage area, which is beneficial for achieving uniform heating of the cookware. The staggered distribution of the flame holes 13 means that the positions of adjacent rows of flame holes 13 are offset from each other and not on the same straight line. This design further increases the flame coverage area and enhances the staggered distribution of the flame, thus heating the bottom of the cookware more evenly.

[0059] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A flame distributor, comprising an outer peripheral surface and an inner peripheral surface, characterized in that, The flame distributor is an inner flame distributor, and the outer peripheral surface includes an outer peripheral convex surface and an outer peripheral concave surface, with the outer peripheral convex surface protruding outward relative to the outer peripheral concave surface; The inner peripheral surface includes an inner peripheral convex surface and an inner peripheral concave surface, wherein the inner peripheral convex surface protrudes inward relative to the inner peripheral concave surface; Along the radial direction of the flame distributor, the outer circumferential convex surface and the inner circumferential concave surface are positioned opposite each other, and the outer circumferential concave surface and the inner circumferential convex surface are positioned opposite each other. Flame holes are distributed on the outer circumferential convex surface, the outer circumferential concave surface, the inner circumferential convex surface and the inner circumferential concave surface. The distance between the outer concave surface and the center of the fire distributor is greater than the distance between the inner concave surface and the center of the fire distributor.

2. The fire distributor as described in claim 1, characterized in that, The outer convex surface and the outer concave surface are distributed sequentially along the circumference of the flame distributor, and the inner convex surface and the inner concave surface are distributed sequentially along the circumference of the flame distributor.

3. The fire distributor as described in claim 2, characterized in that, The number of the outer convex surface and the outer concave surface is at least two and they are distributed at intervals, and the number of the inner convex surface and the inner concave surface is at least two and they are distributed at intervals.

4. The fire distributor as described in claim 3, characterized in that, The number of the outer convex surface, the outer concave surface, the inner convex surface, and the inner concave surface are all three and are evenly distributed.

5. The fire distributor as described in claim 3 or 4, characterized in that, The central angles corresponding to the outer convex surface and the outer concave surface are equal, and the central angles corresponding to the inner convex surface and the inner concave surface are equal.

6. The fire distributor as described in claim 1, characterized in that, The outer convex surface and the outer concave surface are outer circumferential surfaces; And / or, the inner circumferential convex surface and the inner circumferential concave surface are inner circumferential surfaces.

7. The fire distributor as described in claim 1, characterized in that, The distance from the outer convex surface to the inner concave surface is equal to the distance from the outer concave surface to the inner convex surface.

8. The fire distributor as described in claim 1, characterized in that, Along the circumference of the flame distributor, the flame holes are distributed in at least two rows, and the at least two rows of flame holes are staggered.

9. The fire distributor as described in claim 1, characterized in that, The radial dimension of the fire distributor gradually increases from the top surface to the bottom surface of the fire distributor.

10. A stove, characterized in that, It includes the fire distributor as described in any one of claims 1-9.

Citation Information

Patent Citations

  • Uniform heating burner

    CN110296397A