Copper core, burner and stove
By designing honeycomb-shaped inner ring flame holes, including direct flame holes and arc-shaped flame holes, on the copper core of the infrared burner, the backfire problem is solved, the stability and safety of the burner are improved, complete combustion is ensured, and thermal efficiency and cooking efficiency are enhanced.
Patent Information
- Application Number
- CN202422922102.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The copper core of existing infrared burners is prone to backfire, which can cause negative pressure inside the stove and may even cause the glass panel to shatter or catch fire, posing a safety hazard.
A copper core is designed with multiple honeycomb-shaped flame holes in the inner ring, including direct flame holes and arc-shaped flame holes. By extending the mixing path of gas and air, the gas flow rate is slowed down, thus avoiding backfire.
It improves the flame stability and safety of the burner, ensures complete combustion, reduces heat loss, and enhances thermal and cooking efficiency.
Smart Images
Figure CN223512095U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of household appliance technology, and in particular to a copper core, burner and stove. Background Technology
[0002] A burner is a device that mixes fuel and air in a specific ratio and then sprays the mixture for combustion. An infrared burner is a type of burner that converts the flame into infrared radiation during combustion. Compared to conventional burners that transfer heat through convection, infrared burners are widely used because they provide more uniform heat distribution, better heating, a wider adjustable power range, and lower pollutant emissions.
[0003] However, in existing technologies, the copper core of infrared burners typically uses direct-fire holes, which easily leads to backfire. Backfire refers to the combustion problem where the flame retracts into the inner cavity of the cooktop, causing the burner to "explode." When backfire occurs, combustion occurs in the cooktop cavity or at the air damper, producing a popping sound. Backfire can create negative pressure inside the cooktop casing, and in severe cases, it can cause the cooktop glass panel to shatter or even start a fire, threatening the life and property safety of users.
[0004] Therefore, there is an urgent need to propose a copper core to solve the above problems. Utility Model Content
[0005] Based on the above problems, the purpose of this utility model is to provide a copper core, burner and stove that can effectively improve the backfire problem caused by the direct flame hole of the infrared burner, thereby improving the stability of its flame combustion.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A copper core having multiple inner ring flame holes arranged in a honeycomb pattern, each inner ring flame hole comprising:
[0008] The first hole, the first hole is a direct fire hole;
[0009] The second hole is located below the first hole and is connected to the first hole. The second hole is an arc-shaped fire hole.
[0010] As a preferred embodiment of the copper core provided by this utility model, the height of the first hole in the vertical direction is L1, and the height of the second hole in the vertical direction is L2, wherein L2≥L1.
[0011] As a preferred embodiment of the copper core provided by this utility model, the height L1 of the first hole in the vertical direction is 1mm to 3mm; and / or the height L2 of the second hole in the vertical direction is 4mm to 7mm.
[0012] As a preferred embodiment of the copper core provided by this utility model, each of the inner ring flame holes further includes a third hole, which is located below the second hole and connected to the second hole, and the third hole is a direct flame hole.
[0013] As a preferred embodiment of the copper core provided by this utility model, the height of the second hole in the vertical direction is L2, and the height of the third hole in the vertical direction is L3, wherein L2≥L3.
[0014] As a preferred embodiment of the copper core provided by this utility model, the height L3 of the third hole in the vertical direction is 2mm to 4mm; and / or the height L2 of the second hole in the vertical direction is 4mm to 7mm.
[0015] As a preferred embodiment of the copper core provided by this utility model, the angle between the tangent of the second hole at its intersection with the first hole and the axis of the first hole is 0° to 45°; and / or the angle between the tangent of the second hole at its intersection with the third hole and the axis of the third hole is 0° to 45°.
[0016] As a preferred embodiment of the copper core provided by this utility model, the second hole is arc-shaped, and the central angle of the second hole is 0° to 90°.
[0017] To achieve the above objectives, this utility model also provides a burner, comprising:
[0018] Copper base;
[0019] The copper core described above is disposed on the copper base;
[0020] A copper cap is arranged around the outer periphery of the copper core;
[0021] The furnace head is connected to the copper base. The furnace head includes an inner ring ejector tube and an outer ring ejector tube. The inner ring ejector tube is connected to the inner ring flame hole of the copper base, and the outer ring ejector tube is connected to the outer ring flame hole of the copper cover.
[0022] To achieve the above objectives, the present invention also provides a stove, including a panel and at least one burner as described above, wherein the burner is mounted on the panel.
[0023] The beneficial effects of this utility model are as follows:
[0024] The copper core provided by this utility model, by setting the first hole as a direct flame hole, helps infrared heat radiate upwards to the bottom of the cookware, reducing heat loss; by setting the second hole as an arc-shaped flame hole, compared with a direct flame hole, firstly, it helps to extend the mixing path of air and gas, allowing the gas and air to mix more thoroughly, thereby improving combustion efficiency; secondly, the arc-shaped flame hole also helps to improve the thermal efficiency of the infrared burner, making the heat more concentrated and evenly transferred to the bottom of the cookware; thirdly, the arc-shaped flame hole can also increase the flow resistance of the gas flow, thereby slowing down the gas flow rate, preventing backfire and ensuring the safety of the burner; in addition, the slowed gas flow rate also helps the gas flow form a stable airflow when it is ejected from the inner ring flame hole, improving the stability of the flame, ensuring complete and sufficient combustion, enhancing the combustion effect, and improving thermal efficiency.
[0025] The burner provided by this utility model, by applying the aforementioned copper core, can effectively improve the backfire problem caused by the direct fire hole in the infrared burner, thereby enhancing the stability of its flame combustion.
[0026] The stove provided by this utility model, by applying the above-mentioned burner, can ensure more complete and safer combustion, improve cooking efficiency, and guarantee the safety of the stove in use. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the burner provided in an embodiment of the present invention;
[0029] Figure 2 This is a schematic diagram of the copper core structure provided in an embodiment of the present invention;
[0030] Figure 3 This is a first cross-sectional view of the copper core provided in this embodiment of the utility model;
[0031] Figure 4 This is a second cross-sectional view of the copper core provided in this embodiment of the present invention.
[0032] In the picture:
[0033] 100. Copper core; 110. Inner ring flame hole; 111. First hole; 112. Second hole; 113. Third hole; 120. Flame transfer groove; 130. Inner ring mixing chamber;
[0034] 200. Copper cap; 201. Outer ring flame hole;
[0035] 300. Bronze base;
[0036] 400. Stove head. Detailed Implementation
[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0040] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0041] This embodiment provides a cooktop including a control panel, a pot rack, and at least one burner. The burner is mounted on the control panel, and the pot rack surrounds the burner and is used to hold cooking utensils for cooking. By providing at least one burner on the control panel, cooking efficiency can be improved, meeting the user's cooking needs. In this embodiment, the burner specifically refers to an infrared burner.
[0042] Figure 1 A schematic diagram of the burner provided in this embodiment is shown. Figure 1 As shown, the burner includes a copper core 100, a copper cover 200, a copper base 300, and a burner head 400. The copper core 100 is mounted on the copper base 300 and has multiple honeycomb-shaped inner ring flame holes 110. The copper cover 200 is arranged around the outer periphery of the copper core 100. The burner head 400 is connected to the copper base 300 and includes an inner ring ejector tube and an outer ring ejector tube. The inner ring ejector tube communicates with the inner ring flame holes 110 of the copper base 300, and the outer ring ejector tube communicates with the outer ring flame holes 201 of the copper cover 200. The mixed gas in the outer ring ejector tube can be injected into the copper cover 200 and flow out from the outer ring flame holes 201 for combustion; the mixed gas in the inner ring ejector tube can be injected into the copper core 100 and flow out from the inner ring flame holes 110 for combustion, thereby cooking the food in the cookware on the pot rack.
[0043] Figure 2 A schematic diagram of the structure of the copper core 100 provided in this embodiment is shown. Figure 3 A first cross-sectional view of the copper core 100 provided in this embodiment is shown. Figures 2-3 and combined Figure 1 As shown, an inner ring mixing chamber 130 is provided inside the copper core 100, and a flame transfer groove 120 connected to the inner ring mixing chamber 130 is provided on the side wall of the copper core 100. The outlet of the inner ring ejector tube is connected to the flame transfer groove 120. The mixed gas in the inner ring ejector tube flows out from the inner ring flame hole 110 for combustion after passing through the flame transfer groove 120 and the inner ring mixing chamber 130 in sequence, so as to achieve full mixing and combustion of gas and air. An outer ring mixing chamber (not shown in the figure) is provided inside the copper cover 200. The outlet of the outer ring ejector tube is connected to the outer ring mixing chamber. The mixed gas in the outer ring ejector tube can flow out from the outer ring flame hole 201 for combustion after passing through the outer ring mixing chamber, so as to achieve full mixing and combustion of gas and air.
[0044] However, in existing technologies, the inner ring flame holes are typically direct-fire holes, which easily lead to backfire. Once backfire occurs, it creates negative pressure inside the cooktop casing, and in severe cases, can cause the cooktop glass panel to shatter or even start a fire, threatening the life and property of users. To solve this problem, such as... Figure 3As shown, in this embodiment, each inner ring flame hole 110 includes a first hole 111 and a second hole 112. The first hole 111 is a direct flame hole; the second hole 112 is located below the first hole 111 and is connected to the first hole 111. The second hole 112 is an arc-shaped flame hole. By setting the first hole 111 as a direct flame hole, infrared heat can be radiated upwards to the bottom of the cookware, reducing heat loss. By setting the second hole 112 as an arc-shaped flame hole, compared to a direct flame hole, firstly, it helps to extend the mixing path of air and gas, allowing for more thorough mixing and thus improving combustion efficiency; secondly, the arc-shaped flame hole also helps to improve the thermal efficiency of the infrared burner, making the heat more concentrated and evenly transferred to the bottom of the cookware; thirdly, the arc-shaped flame hole can also increase the flow resistance of the gas flow, thereby slowing down the gas flow rate, preventing backfire, and ensuring the safety of the burner; in addition, the slowed gas flow rate also helps to form a stable airflow when the gas is ejected from the inner ring flame hole 110, improving flame stability, ensuring complete and sufficient combustion, enhancing combustion effect, and improving thermal efficiency.
[0045] Optionally, each inner ring flame hole 110 further includes a third hole 113, which is located below and communicates with the second hole 112. The third hole 113 is a direct-fire hole. In this embodiment, the lower end of the third hole 113 is connected to the inner ring mixing chamber 130. By setting the third hole 113 below the second hole 112 and setting it as a direct-fire hole, the purpose is to utilize the impact force of the mixed gas during transmission in the inner ring mixing chamber 130 to allow the mixed gas in the inner ring mixing chamber 130 to flow rapidly into each third hole 113, and then fully mix at the junction of the third hole 113 and the second hole 112, thereby improving combustion efficiency.
[0046] Figure 4 A second cross-sectional view of the copper core 100 provided in this embodiment is shown. (See attached diagram.) Figure 4 and combined Figure 3 As shown, the vertical height of the first hole 111 is L1, the vertical height of the second hole 112 is L2, where L2 ≥ L1. The vertical height of the third hole 113 is L3, where L2 ≥ L3. That is, the first hole 111 and the third hole 113 are both short, straight-flow channels, while the second hole 112 is a slightly taller, arc-shaped flow channel. This design increases the flow path of the mixed gas in the inner ring flame hole 110, further ensuring that the gas and air are fully mixed before being ejected from the outlet of the first hole 111.
[0047] Alternatively, in this embodiment, L2>L3>L1, meaning the height of the first hole 111 is the smallest. The flow rate of the mixed gas slows down after passing through the second hole 112, and setting the height of the first hole 111 to be relatively small is to ensure that the mixed gas can be sprayed out evenly.
[0048] Optionally, the vertical height L1 of the first hole 111 is 1mm to 3mm; the vertical height L2 of the second hole 112 is 4mm to 7mm; and the vertical height L3 of the third hole 113 is 2mm to 4mm. For example, L1 = 2mm, L2 = 5mm, L3 = 4mm; or L1 = 2mm, L2 = 6mm, L3 = 3mm; or L1 = 1mm, L2 = 6mm, L3 = 3mm; or L1 = 1mm, L2 = 7mm, L3 = 4mm. Of course, the specific values of L1, L2, and L3 are not limited in this embodiment, and designers can adjust these values according to the total height of the copper core 100 and actual usage requirements.
[0049] Continue as Figures 3-4 As shown, the angle between the tangent of the second hole 112 at its intersection with the first hole 111 and the axis of the first hole 111 is 0° to 45°; the angle between the tangent of the second hole 112 at its intersection with the third hole 113 and the axis of the third hole 113 is 0° to 45°. This design ensures that the mixed fuel gas can smoothly enter the second hole 112 from the first hole 111 through the intersection of the first hole 111 and the second hole 112, and smoothly enter the third hole 113 from the second hole 112 through the intersection of the second hole 112 and the third hole 113.
[0050] Optionally, the second hole 112 is arc-shaped, with a central angle of 0° to 90°. This design avoids the situation where a large central angle of the second hole 112 would cause blockage and make cleaning difficult. For example, the central angle of the second hole 112 can be 10°, 20°, 30°, 40°, 45°, 50°, 60°, 70°, 80°, etc. This embodiment does not limit the specific value of the central angle of the second hole 112; designers can adjust it according to actual usage requirements.
[0051] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.
Claims
1. A copper core, characterized in that, The copper core is provided with a plurality of inner ring flame holes (110) arranged in a honeycomb pattern, and each inner ring flame hole (110) includes: The first hole (111) is a direct fire hole; The second hole (112) is located below the first hole (111) and is connected to the first hole (111). The second hole (112) is an arc-shaped fire hole.
2. The copper core according to claim 1, characterized in that, The height of the first hole (111) in the vertical direction is L1, and the height of the second hole (112) in the vertical direction is L2, wherein L2≥L1.
3. The copper core according to claim 2, characterized in that, The height L1 of the first hole (111) in the vertical direction is 1mm to 3mm; and / or the height L2 of the second hole (112) in the vertical direction is 4mm to 7mm.
4. The copper core according to claim 1, characterized in that, Each of the inner ring flame holes (110) further includes a third hole (113), which is located below and connected to the second hole (112), and the third hole (113) is a direct flame hole.
5. The copper core according to claim 4, characterized in that, The height of the second hole (112) in the vertical direction is L2, and the height of the third hole (113) in the vertical direction is L3, wherein L2≥L3.
6. The copper core according to claim 5, characterized in that, The height L3 of the third hole (113) in the vertical direction is 2mm to 4mm; and / or the height L2 of the second hole (112) in the vertical direction is 4mm to 7mm.
7. The copper core according to claim 4, characterized in that, The angle between the tangent of the second hole (112) at its intersection with the first hole (111) and the axis of the first hole (111) is 0° to 45°; and / or the angle between the tangent of the second hole (112) at its intersection with the third hole (113) and the axis of the third hole (113) is 0° to 45°.
8. The copper core according to any one of claims 1 to 7, characterized in that, The second hole (112) is arc-shaped, and the central angle of the second hole (112) is 0° to 90°.
9. A burner, characterized in that, include: Copper base (300); The copper core as described in any one of claims 1 to 8 is disposed on the copper base (300); A copper cap (200) is arranged around the outer periphery of the copper core; The burner head (400) is connected to the copper base (300). The burner head (400) includes an inner ring ejector tube and an outer ring ejector tube. The inner ring ejector tube is connected to the inner ring flame hole (110) of the copper base (300), and the outer ring ejector tube is connected to the outer ring flame hole (201) of the copper cover (200).
10. A stove, characterized in that, It includes a panel and at least one burner as claimed in claim 9, the burner being mounted on the panel.