Stove burner

Abstract

The utility model provides a stove burner which comprises a liquid containing disc and a heat collecting cover, the heat collecting cover is arranged above the liquid containing disc, and a secondary air inlet space is formed between the heat collecting cover and the liquid containing disc. The upper end face of the liquid containing disc is parallel to the horizontal plane, the outer circumferential face of the liquid containing disc inclines towards the radial outer side of the heat collecting cover from top to bottom, the inner circumferential face of the heat collecting cover inclines towards the radial inner side of the heat collecting cover from top to bottom, the inner circumferential face of the heat collecting cover and the upper end face of the liquid containing disc form a bowl-shaped energy gathering space, and the energy gathering effect is good. The plane where the inner circumferential face of the heat collecting cover is located passes through the boundary line of the upper end face of the liquid containing disc and the outer circumferential face of the liquid containing disc, the bottom of the bowl-shaped energy gathering space can be prevented from being exposed, the energy gathering effect is further guaranteed, a plurality of heat insulation layers do not need to be arranged in the heat collecting cover, and the cost of the heat collecting cover is reduced. And meanwhile, the radial length of the secondary air inlet space can be increased, so that the secondary air inlet area is guaranteed, and the combustion efficiency is improved.

Description

Technical Field

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

[0002] In existing technologies, to achieve the effect of concentrating energy and reducing flue gas, the structure of pot supports or energy-concentrating rings is generally improved, and the drip tray of the stove is only used to collect the overflow generated during cooking. Currently, the improvement of the energy-concentrating ring is generally to increase the number of layers to reduce heat loss. However, simply increasing the number of layers not only increases the cost of the energy-concentrating ring, but also has little impact on thermal efficiency after the number of layers increases to a certain extent. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a stove burner.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A stove burner includes a liquid-collecting tray and an annular heat-collecting hood. The heat-collecting hood is positioned above the liquid-collecting tray. A secondary air intake space is formed vertically between the heat-collecting hood and the liquid-collecting tray, and the secondary air intake space extends radially through both ends of the heat-collecting hood. The upper surface of the liquid-collecting tray is parallel to a horizontal plane. The outer circumferential surface of the liquid-collecting tray slopes radially outward from top to bottom towards the outer side of the heat-collecting hood. The inner circumferential surface of the heat-collecting hood slopes radially inward from top to bottom towards the inner side of the heat-collecting hood. The plane containing the inner circumferential surface of the heat-collecting hood passes through the boundary line between the upper surface of the liquid-collecting tray and the outer circumferential surface of the liquid-collecting tray.

[0006] In this design, the inner circumferential surface of the heat collector and the upper surface of the liquid-collecting pan form a "bowl-shaped" energy-concentrating space to improve energy concentration and thermal efficiency. The plane containing the inner circumferential surface of the heat collector passes through the boundary line between the upper and outer circumferential surfaces of the liquid-collecting pan. Compared to a plane that is moved inward and only passes through the upper surface of the liquid-collecting pan, this design prevents the bottom of the "bowl-shaped" energy-concentrating space from being exposed, further ensuring the energy concentration effect. This eliminates the need for multiple insulation layers inside the heat collector, reducing its cost. Furthermore, compared to a plane that is moved outward and only passes through the outer circumferential surface of the liquid-collecting pan, this design increases the radial length of the secondary air intake space, ensuring sufficient secondary air intake area and improving combustion efficiency.

[0007] Preferably, the outer peripheral surface of the liquid-holding tray is curved, and the outer peripheral surface of the liquid-holding tray bends toward the interior of the liquid-holding tray.

[0008] In this design, the outer circumference of the curved liquid-holding tray can better guide the flow of secondary air, reduce the resistance of secondary air, and allow secondary air to flow into the combustion zone stably and smoothly.

[0009] Preferably, the heat collection cover is a hollow structure, and the outer peripheral wall of the heat collection cover is parallel to the vertical direction.

[0010] In this scheme, the above-mentioned arrangement enables the inner side of the outer peripheral wall of the heat collection hood to reflect the heat infrared rays onto the inner peripheral wall of the heat collection hood, thereby reducing heat loss.

[0011] Preferably, the lower end face of the inner peripheral wall of the heat collection shroud is located above the lower end face of the outer peripheral wall of the heat collection shroud.

[0012] In this design, the aforementioned arrangement serves two purposes. First, it ensures that when infrared heat is reflected between the inner and outer peripheral walls of the heat collector, the infrared heat reflected from the inner wall towards the outer wall falls onto the outer wall, preventing heat from directly flowing out of the heat collector and improving thermal efficiency. Second, it prevents secondary air flowing radially inward from being blocked by the lower edge of the inner wall, ensuring the flow of secondary air, preventing airflow turbulence, and preventing flue gas from rising.

[0013] Preferably, the angle between the inner circumferential surface of the heat collection shroud and the horizontal plane is 55°-75°.

[0014] In this solution, the above-mentioned method ensures that the overflow liquid falling on the inner circumferential surface of the heat collector can fall off in time, preventing the overflow liquid from sticking to the inner circumferential surface of the heat collector and improving the anti-fouling capability of the heat collector.

[0015] Preferably, the top of the heat collection shroud has a radial thickness of 8mm to 12mm, and the bottom of the heat collection shroud has a radial thickness of 16mm to 24mm.

[0016] In this solution, by limiting the size of the heat collection hood, the area of ​​the inner circumference of the heat collection hood used to receive overflow is prevented from being too large.

[0017] Preferably, the heat collection hood and the liquid collection tray are spaced apart in the vertical direction, and the gap between the heat collection hood and the liquid collection tray in the vertical direction forms the secondary air intake space; the lower end of the heat collection hood is open, and the secondary air intake space is connected to the internal space of the heat collection hood.

[0018] In this design, the lower end of the heat collection hood is open, allowing the heat inside the hood to diffuse downwards and heat the secondary air in the secondary air intake space, preheating the secondary air, increasing its temperature, and improving combustion completeness.

[0019] Preferably, the heat collection shroud includes a first bending portion and a second bending portion, wherein the lower end of the outer peripheral wall of the heat collection shroud is bent toward the inside of the heat collection shroud to form the first bending portion, and the lower end of the inner peripheral wall of the heat collection shroud is bent toward the inside of the heat collection shroud to form the second bending portion.

[0020] The first bend is inclined from bottom to top toward the radially inner side of the heat collection shroud, and / or the second bend is inclined from bottom to top toward the radially outer side of the heat collection shroud.

[0021] Preferably, the surface of the heat collection cover has a glossy enamel layer.

[0022] In this solution, the glossy enamel layer has good stain resistance and is easy to clean.

[0023] Preferably, the surface roughness of the heat collection shroud is less than or equal to 1 μm.

[0024] In this design, the surface of the heat collection cover is smooth and does not easily stick to overflowing liquid, allowing the overflowing liquid to be discharged in a timely manner, further improving the anti-fouling capability of the heat collection cover.

[0025] The significant advantages of this invention are as follows: the inner circumferential surface of the heat collection hood and the upper end surface of the liquid-collecting plate form a "bowl-shaped" energy-concentrating space, thereby improving energy concentration and thermal efficiency. The plane containing the inner circumferential surface of the heat collection hood passes through the boundary line between the upper end surface and the outer circumferential surface of the liquid-collecting plate. Compared to a plane that moves inward and only passes through the upper end surface of the liquid-collecting plate, this prevents the bottom of the "bowl-shaped" energy-concentrating space from being exposed, further ensuring the energy concentration effect. Consequently, it eliminates the need for multiple insulation layers inside the heat collection hood, reducing its cost. Furthermore, compared to a plane that moves outward and only passes through the outer circumferential surface of the liquid-collecting plate, this increases the radial length of the secondary air intake space, ensuring the secondary air intake area and improving combustion efficiency. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of a stove according to an embodiment of the present invention.

[0027] Figure 2 This is a three-dimensional structural diagram of a stove burner according to an embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of the internal structure of a stove burner according to an embodiment of the present invention.

[0029] Figure 4 This is a three-dimensional structural diagram of a heat collection cover according to an embodiment of the present invention.

[0030] Figure 5 This is a schematic diagram of the internal structure of a heat collection shroud according to an embodiment of the present invention.

[0031] Figure 6 This is a three-dimensional structural diagram of a liquid-holding tray according to an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] Fire cap 1

[0034] Pot support 2

[0035] Heat collector shroud 3

[0036] The inner peripheral wall 31 of the heat collection shroud

[0037] The inner circumferential surface 32 of the heat collection shroud

[0038] The outer peripheral wall of the heat collection shroud 33

[0039] First bend 34

[0040] Second bend 35

[0041] Liquid tray 4

[0042] The upper end face 41 of the liquid collection tray

[0043] 42 outer periphery of the liquid collection tray

[0044] Secondary air intake space 5 Detailed Implementation

[0045] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0046] like Figure 1 and Figure 2 As shown, this embodiment discloses a stove burner, including a burner cap 1, a pot support 2, a heat collection hood 3, and a liquid collection tray 4. The heat collection hood 3 has an annular structure and is fitted around the outer periphery of the burner cap 1; the pot support 2 is fixed on the heat collection hood 3 and is used to support the pot; the liquid collection tray 4 is located below the burner cap 1, the pot support 2, and the heat collection hood 3, and is used to collect the overflow liquid generated during cooking and can support the pot support 2.

[0047] Among them, such as Figure 3 As shown, in this embodiment, the lower end of the pot support 2 is placed on the liquid collection tray 4. The heat collection hood 3 and the liquid collection tray 4 are vertically spaced apart, and the relative position of the heat collection hood 3 and the liquid collection tray 4 is fixed by the pot support 2. The gap between the heat collection hood 3 and the liquid collection tray 4 in the vertical direction forms a secondary air intake space 5. The secondary air intake space 5 is open at both ends in the radial direction of the heat collection hood 3, so that external air can pass through the heat collection hood 3 radially and flow into the combustion zone (at the burner cap 1), so that the gas can be fully burned and the combustion efficiency can be improved.

[0048] In other alternative embodiments, the heat collection cover 3 can also be placed directly on the liquid collection tray 4, and a secondary air intake space 5 can be formed in the vertical direction between the heat collection cover 3 and the liquid collection tray 4 by opening holes / grooves on the peripheral sidewall of the heat collection cover 3.

[0049] Furthermore, such as Figure 3 As shown, the heat collection hood 3 has a hollow structure and is open at the bottom. The secondary air intake space 5 is connected to the internal space of the heat collection hood 3, so that the heat inside the heat collection hood 3 can diffuse downward to heat the secondary air in the secondary air intake space 5, preheat the secondary air, increase the temperature of the secondary air, and further improve the combustion completeness.

[0050] like Figures 3-5 As shown, the internal space of the heat collection cover 3 is a whole, that is, the heat collection cover 3 forms only a heat insulation layer. The inner peripheral wall 31 and the outer peripheral wall of the heat collection cover can reflect heat infrared rays to each other, preventing heat from flowing out of the heat collection cover 3 directly and improving thermal efficiency.

[0051] Specifically, in this embodiment, the upper surface of the heat collection hood 3 is flat, the inner peripheral wall 31 of the heat collection hood is inclined radially inward from top to bottom towards the inner side of the heat collection hood 3, the outer peripheral wall 33 of the heat collection hood is parallel to the vertical direction, and the lower end surface of the inner peripheral wall 31 of the heat collection hood is located above the lower end surface of the outer peripheral wall 33 of the heat collection hood. This ensures that when the heat infrared rays are reflected between the inner peripheral wall 31 and the outer peripheral wall of the heat collection hood, the heat infrared rays reflected from the inner peripheral wall 31 towards the outer peripheral wall 33 of the heat collection hood all fall on the outer peripheral wall 33 of the heat collection hood, preventing heat from flowing directly out of the heat collection hood 3 and improving thermal efficiency. In addition, the lower end of the outer peripheral wall 33 of the heat collection hood is lower than the lower end of the inner peripheral wall 31 of the heat collection hood, which can also prevent the secondary air flowing radially inward towards the heat collection hood 3 from being blocked by the lower edge of the inner peripheral wall 31 of the heat collection hood, ensuring the flow of secondary air, preventing airflow turbulence, and preventing flue gas from rising.

[0052] Furthermore, such as Figures 3-5 As shown, the heat collector shroud 3 also includes a first bending portion 34 and a second bending portion 35. The lower end of the outer peripheral wall 33 of the heat collector shroud is bent toward the inside of the heat collector shroud 3 to form the first bending portion 34, and the lower end of the inner peripheral wall 31 of the heat collector shroud is bent toward the inside of the heat collector shroud 3 to form the second bending portion 35. In this embodiment, the first bending portion 34 is parallel to the horizontal plane, and the second bending portion 35 is inclined from bottom to top toward the radially outward side of the heat collector shroud 3. The inclined arrangement of the second bending portion 35 can reduce its radial dimension in the heat collector shroud 3, thereby making the lower opening of the heat collector shroud 3 larger, allowing for better heat exchange with the secondary air located below, and better preheating of the secondary air.

[0053] In other alternative embodiments, the first bend 34 may also be designed as an inclined structure, that is, the first bend 34 is inclined from bottom to top toward the radially inward side of the heat collection shroud 3. Alternatively, the second bend 35 may also be designed as a structure parallel to the horizontal plane.

[0054] In other alternative embodiments, the outer peripheral wall 33 of the heat collection hood can also be inclined radially outward from top to bottom towards the outer side of the heat collection hood 3. In this embodiment, the outer peripheral wall 33 of the heat collection hood is designed to be parallel to the vertical direction so that the inner side of the outer peripheral wall 33 of the heat collection hood can reflect the heat infrared rays to the inner peripheral wall 31 of the heat collection hood, thereby reducing heat loss.

[0055] In this embodiment, such as Figure 5 As shown, the angle α between the inner circumferential surface 32 of the heat collection hood and the horizontal plane is 65°. The thickness t1 of the top of the heat collection hood 3 in the radial direction is 10mm, and the thickness t2 of the bottom of the heat collection hood 3 in the radial direction is 20mm. This embodiment, by limiting the size of the heat collection hood 3, ensures that the infrared radiation reflected by the inner and outer circumferential walls of the heat collection hood falls on the corresponding circumferential walls, preventing heat leakage. Furthermore, this embodiment designs the inner circumferential surface 32 of the heat collection hood to be steeper, reducing its radial dimension and the area for receiving overflow. This makes it less likely for overflow to drip and adhere to the inner circumferential surface 32, enhancing the overflow discharge capability of the heat collection hood 3. The overflow may remain on the inner circumferential surface 32 for a short time, or even not at all, and be discharged directly, thereby improving the anti-fouling capability of the heat collection hood 3.

[0056] In other alternative embodiments, the angle α between the inner circumferential surface 32 of the heat collection shroud and the horizontal plane is preferably in the range of 55°-75°, the thickness t1 of the top of the heat collection shroud 3 in the radial direction is preferably in the range of 8mm-12mm, and the thickness t2 of the bottom of the heat collection shroud 3 in the radial direction is preferably in the range of 16mm-24mm.

[0057] Furthermore, the surface of the heat collector hood 3 has a glossy enamel layer, which has good anti-fouling ability, making the heat collector hood 3 easy to clean. Specifically, all surfaces of the heat collector hood 3 have a glossy enamel layer, which also facilitates the reflection of heat and infrared rays. Moreover, the enamel material itself can slow down the heat transfer rate, play a role in heat preservation, and improve thermal efficiency.

[0058] Furthermore, the surface roughness of the heat collector 3 is less than or equal to 1 μm. The surface of the heat collector 3 is smooth and does not easily adhere to overflowing liquid, allowing the overflowing liquid to be discharged in time, further improving the anti-fouling ability of the heat collector 3. Specifically, the surface roughness of all surfaces of the heat collector 3 is less than or equal to 1 μm. The smaller the surface roughness, the better the reflection effect of heat and infrared rays.

[0059] like Figure 3 and Figure 6 As shown, the upper end face 41 of the liquid-collecting tray is parallel to the horizontal plane. The inner circumferential surface 32 of the heat-collecting hood and the upper end face 41 of the liquid-collecting tray form a "bowl-shaped" energy-concentrating space to improve the energy-concentrating effect and increase thermal efficiency. The outer circumferential surface 42 of the liquid-collecting tray is inclined radially outward from top to bottom towards the heat-collecting hood 3 to guide the flow direction of secondary air, reduce the resistance of secondary air, and allow secondary air to flow into the combustion zone stably and smoothly.

[0060] like Figure 3 As shown, in this embodiment, the plane containing the inner circumferential surface 32 of the heat collection hood passes through the boundary line between the upper end surface 41 and the outer circumferential surface 42 of the liquid collection pan. Specifically, in this embodiment, the upper end surface 41 and the outer circumferential surface 42 of the liquid collection pan have a rounded transition to prevent turbulence at the connection point and facilitate the flow of secondary air. The plane containing the inner circumferential surface 32 of the heat collection hood passes through the rounded transition area between the upper end surface 41 and the outer circumferential surface 42 of the liquid collection pan.

[0061] If the plane containing the inner circumferential surface 32 of the heat collector 3 moves radially inward to the point where it only passes through the upper end surface 41 of the liquid-collecting tray, the upper end surface 41 of the liquid-collecting tray will not be entirely within the energy-concentrating space, reducing the energy-concentrating effect. If the plane containing the inner circumferential surface 32 of the heat collector 3 moves radially outward to the point where it only passes through the outer circumferential surface 42 of the liquid-collecting tray, the radial length of the secondary air intake space 5 will be affected, thus impacting the secondary air intake area.

[0062] Therefore, in this embodiment, the plane containing the inner circumferential surface 32 of the heat collection hood is designed to pass through the boundary line between the upper end surface 41 of the liquid-holding plate and the outer circumferential surface 42 of the liquid-holding plate. This prevents the bottom of the "bowl-shaped" energy-concentrating space from being exposed, further ensuring the energy-concentrating effect. Consequently, it eliminates the need to install multiple heat insulation layers inside the heat collection hood 3, reducing the cost of the heat collection hood 3. In addition, it can increase the radial length of the secondary air intake space 5 to ensure the secondary air intake area and improve combustion efficiency.

[0063] Furthermore, such as Figure 3 As shown, the outer peripheral surface 42 of the liquid-holding tray is curved, curving towards the interior of the liquid-holding tray 4. The curved shape of the outer peripheral surface 42 of the liquid-holding tray can better guide the flow of secondary air, reduce the resistance of secondary air, and allow secondary air to flow into the combustion zone stably and smoothly.

[0064] In other alternative embodiments, the outer peripheral surface 42 of the liquid-holding tray can also be designed as a plane.

[0065] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown by the device or component during normal use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0066] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model 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 this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A stove burner, comprising a liquid-collecting tray and an annular heat-collecting hood, the heat-collecting hood being disposed above the liquid-collecting tray, a secondary air intake space being formed vertically between the heat-collecting hood and the liquid-collecting tray, the secondary air intake space being open at both ends radially of the heat-collecting hood; characterized in that, The upper end face of the liquid collection tray is parallel to the horizontal plane. The outer peripheral surface of the liquid collection tray is inclined from top to bottom toward the radially outer side of the heat collection hood. The inner peripheral surface of the heat collection hood is inclined from top to bottom toward the radially inner side of the heat collection hood. The plane containing the inner peripheral surface of the heat collection hood passes through the boundary line between the upper end face of the liquid collection tray and the outer peripheral surface of the liquid collection tray.

2. The stove burner as described in claim 1, characterized in that, The outer peripheral surface of the liquid-holding tray is curved, and the outer peripheral surface of the liquid-holding tray bends toward the interior of the liquid-holding tray.

3. The stove burner as described in claim 1, characterized in that, The heat collection cover is a hollow structure, and the outer peripheral wall of the heat collection cover is parallel to the vertical direction.

4. The stove burner as described in claim 3, characterized in that, The lower end face of the inner peripheral wall of the heat collection hood is located above the lower end face of the outer peripheral wall of the heat collection hood.

5. The stove burner as described in claim 3, characterized in that, The angle between the inner circumferential surface of the heat collection shroud and the horizontal plane is 55°-75°.

6. The stove burner as described in claim 5, characterized in that, The top of the heat collection shroud has a radial thickness of 8mm to 12mm, and the bottom of the heat collection shroud has a radial thickness of 16mm to 24mm.

7. The stove burner as described in claim 3, characterized in that, The heat collection hood and the liquid collection tray are arranged at a distance in the vertical direction, and the gap between the heat collection hood and the liquid collection tray in the vertical direction forms the secondary air intake space; the lower end of the heat collection hood is open, and the secondary air intake space is connected to the internal space of the heat collection hood.

8. The stove burner as described in claim 7, characterized in that, The heat collection shroud includes a first bending portion and a second bending portion. The lower end of the outer peripheral wall of the heat collection shroud is bent toward the inside of the heat collection shroud to form the first bending portion, and the lower end of the inner peripheral wall of the heat collection shroud is bent toward the inside of the heat collection shroud to form the second bending portion. The first bend is inclined from bottom to top toward the radially inner side of the heat collection shroud, and / or the second bend is inclined from bottom to top toward the radially outer side of the heat collection shroud.

9. The stove burner as described in claim 1 or 3, characterized in that, The surface of the heat collection cover has a glossy enamel layer.

10. The stove burner as described in claim 9, characterized in that, The surface roughness of the heat collection shroud is less than or equal to 1 μm.

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