Infrared burners and gas stoves

Abstract

The present invention provides an infrared burner and a gas stove, which relate to the technical field of kitchen appliances, wherein the infrared burner mainly includes a stove base, a combustion plate, an ignition sensing needle and a separator. The stove base has a recess; the combustion plate cover is provided on the stove base and is surrounded by the recess to form a gas cavity; the ignition sensing needle is provided on the side of the combustion plate opposite to the gas cavity; the separator is provided in the gas cavity to define the boundary between the inner ring gas area and the outer ring gas area, and the boundary extends toward the inner ring gas area to form an extension structure; wherein the extension structure is close to the ignition part of the ignition sensing needle in the first direction, and corresponds to the ignition part of the ignition sensing needle in the second direction, so as to ignite first to form an outer ring fire; the first direction and the second direction are perpendicular. Through the embodiments provided in this application, the flame spreading and the explosion sound caused by the explosion of the outer ring fire can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, in particular to an infrared burner and a gas stove. Background Art

[0002] Burners can be divided into ordinary burners and infrared burners. Currently, the infrared burner combustion plate on the market is integrally formed, and the ignition needles are all set on the combustion plate. When ignited, the inner ring fire is ignited first, and then the fire is transferred to the outer ring.

[0003] However, due to the smaller load of the inner ring and the smaller amount of gas, the ignition concentration cannot be reached in time, so ignition requires a certain amount of gas storage time. Due to the larger load of the outer ring, more gas overflows from the outer ring during the gas storage period of the inner ring. When the gas in the inner ring is ignited, the gas in the outer ring will instantly ignite and spread out, and will make an explosion sound. At the very least, it will scare the user and reduce the user experience. At worst, it may ignite flammable materials on the countertop and cause safety problems. Summary of the Invention

[0004] In response to the shortcomings of the existing methods, this application provides an infrared burner and a gas stove to solve the technical problem in the existing technology that when the infrared burner ignites the inner ring gas, the outer ring gas will instantly ignite and spread outward, and will make an explosion sound, thereby reducing the user experience.

[0005] In the first aspect, an embodiment of the present application provides an infrared burner, comprising: a stove base having a recess; a combustion plate, which is covered on the stove base and encloses the recess to form a gas chamber; an ignition sensing needle, which is arranged on the side of the combustion plate opposite to the gas chamber; a partition, which is arranged in the gas chamber and is used to define the boundary between the inner ring gas area and the outer ring gas area, and the boundary extends toward the inner ring gas area to form an extension structure; wherein the extension structure is close to the ignition part of the ignition sensing needle in the first direction, and corresponds to the ignition part of the ignition sensing needle in the second direction, so as to ignite first to form an outer ring fire; the first direction and the second direction are perpendicular to each other.

[0006] According to an embodiment of the present invention, the ignition sensing needle includes a first sensing portion and a second sensing portion; in the second direction, the first sensing portion corresponds to the inner ring gas area, and the second sensing portion corresponds to the outer ring gas area.

[0007] According to an embodiment of the present invention, the combustion plate is detachably connected to the stove base, and an avoidance hole is opened in the thickness direction of the combustion plate, and the combustion plate is sleeved on the outside of the ignition sensing needle; the ignition sensing needle moves between a first position and a second position; wherein, when the ignition sensing needle is in the first position, the ignition part of the ignition sensing needle corresponds to the extension structure in the second direction; when the ignition sensing needle is in the second position, the projection of the avoidance hole in the second direction covers the projection of the ignition sensing needle.

[0008] According to an embodiment of the present invention, a wall structure is provided at the junction of the inner ring gas area and the outer ring gas area, and the wall structure is formed with the extension structure.

[0009] According to an embodiment of the present invention, the partition is movably connected to the stove base, and the partition includes the wall structure, which is annular and rotates along the circumference of the wall structure to adjust the corresponding position of the extension structure and the ignition part of the ignition sensing needle.

[0010] According to an embodiment of the present invention, the wall structure is uniformly provided with the extension structures.

[0011] According to an embodiment of the present invention, the wall structure is recessed toward the inner ring gas region to form the extension structure.

[0012] According to an embodiment of the present invention, the extension structure has an opening, and the opening faces the ignition portion of the ignition sensing needle located at the first position.

[0013] According to an embodiment of the present invention, the infrared burner further comprises an inner ring airflow channel and an outer ring airflow channel, the inner ring airflow channel is communicated with the inner ring gas region, and the outer ring airflow channel is communicated with the outer ring gas region.

[0014] In a second aspect, an embodiment of the present application provides a gas stove, comprising: an infrared burner as described in any one of the aforementioned embodiments.

[0015] The present application provides an infrared burner and a gas stove. The technical solutions provided by the embodiments of the present application bring at least the following beneficial effects:

[0016] The extension structure of the infrared burner is a convex portion of the outer ring gas area and is embedded in the inner ring gas area. The extension structure is used to accommodate the outer ring gas. The extension structure is close to the ignition part of the ignition sensing needle in the first direction, and only a small part of the outer ring gas area extends into the inner ring gas area. This can ensure the heating area and heating efficiency of the inner ring fire, and avoid ineffective heating of the inner ring fire caused by the extension structure occupying a large area of ​​the inner ring gas, that is, heating with too low heating efficiency. The extension structure corresponds to the ignition part of the ignition sensing needle in the second direction, which can ensure that the outer ring gas is ignited first after the ignition sensing needle is started, forming the outer ring fire first, and avoiding the flame spreading and the explosion sound caused by the explosion of the outer ring fire. Since the outer ring load is large, more gas overflows from the outer ring during the gas storage period, the ignition concentration is easier to achieve, the ignition success rate is higher, and the ignition time is greatly shortened, thereby improving the ignition success rate.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 A schematic structural diagram of an infrared burner provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of a vertical cross-sectional structure of an infrared burner provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of a gas chamber in an infrared burner provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of an ignition sensor needle in an infrared burner provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of the structure of an infrared burner provided in an embodiment of the present application in which an ignition sensing needle is located in a first position;

[0024] Figure 6 A schematic diagram of the structure of an infrared burner provided in an embodiment of the present application in which the ignition sensing needle is located in the second position;

[0025] Figure 7 This is a schematic structural diagram of a partition in an infrared burner provided in an embodiment of the present application.

[0026] Reference numerals and corresponding descriptions:

[0027] 1: furnace base;

[0028] 2: combustion plate; 21: avoidance hole; 22: combustion plate body;

[0029] 3: Gas cavity; 31: Inner ring gas area; 32: Outer ring gas area;

[0030] 4: ignition sensing needle; 41: rotating shaft; 42: ignition needle; 43: sensing needle; 431: first sensing part; 432: first sensing part;

[0031] 5: separator; 51: extension structure; 52: wall structure;

[0032] 6: Inner ring airflow channel;

[0033] 7: Outer ring airflow channel. DETAILED DESCRIPTION

[0034] The present application is described in detail below. Examples of embodiments of the present application are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. In addition, if the detailed description of the known technology is not necessary for the features of the present application shown, it will be omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0035] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0036] It will be understood by those skilled in the art that, unless expressly stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the specification of this application refers to the presence of the features, elements and / or components, but does not exclude the presence or addition of one or more other features, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" to another element, it may be directly connected to the other element, or there may be intermediate elements. In addition, the "connection" used here may include wireless connection. The term "and / or" used here includes all or any unit and all combinations of one or more associated listed items.

[0037] First, the infrared burner involved in this application is introduced and explained. The heating principle of the infrared burner: the gas ignites and burns on the surface of the burner. When the medium on the surface of the burner reaches a certain temperature, it radiates infrared rays outward. When an object is irradiated with infrared rays, it absorbs part of them and reflects part of them. The absorbed part is converted into the object's own energy, making the thermal motion of the object's molecules more intense, achieving the heating effect. When the inherent motion frequency of the object's molecules matches the infrared frequency, that is, when the wavelength of the radiated electromagnetic wave is consistent with the wavelength of the absorption band of the heated object, the object's absorption effect on infrared rays is the strongest. The infrared burner mainly uses the radiation band generated by the high-temperature flame to heat the appliance, and has a high heat exchange efficiency.

[0038] like Figure 1-7 As shown, an embodiment of the present application provides an infrared burner, which mainly includes a stove base 1, a combustion plate 2, an ignition induction needle 4 and a separator 5. The stove base 1 has a recess; the combustion plate 2 is covered on the stove base 1 and encloses the recess to form a gas chamber 3; the ignition induction needle 4 is arranged on the side of the combustion plate 2 opposite to the gas chamber 3; the separator 5 is arranged in the gas chamber 3, and is used to define the intersection of the inner ring gas area 31 and the outer ring gas area 32, and the intersection extends toward the inner ring gas area 31 to form an extension structure 51; wherein the extension structure 51 is close to the ignition part of the ignition induction needle 4 in the first direction, and corresponds to the ignition part of the ignition induction needle 4 in the second direction, so as to ignite first to form an outer ring fire; the first direction and the second direction are perpendicular to each other.

[0039] In this embodiment, the infrared burner is mounted on a horizontal surface. The recessed opening of the stove base 1 faces upward, and a combustion plate 2 is horizontally positioned over the recessed opening to form a gas chamber 3 for gas circulation. This gas chamber 3 is connected to a gas source. A divider 5 is positioned within the gas chamber 3, with opposing sides of the divider 5 defining an inner ring gas area 31 and an outer ring gas area 32. The inner ring gas is used to ignite an inner ring fire, while the outer ring gas is used to ignite an outer ring fire. An ignition sensor 4 is positioned above the combustion plate 2 to ignite the outer ring gas.

[0040] Optionally, the first direction is a horizontal direction, and the second direction is a vertical direction.

[0041] Optionally, the combustion plate 2 is a porous ceramic plate, or a metal honeycomb plate, etc., for radiating infrared rays outward.

[0042] The extension structure 51 is a protrusion of the outer ring gas region 32 and is embedded in the inner ring gas region 31. The extension structure 51 is used to accommodate the outer ring gas. In the first direction, the extension structure 51 is close to the ignition portion of the ignition sensor needle 4, with only a small portion of the outer ring gas region 32 extending into the inner ring gas region 31. This ensures the heating area and heating efficiency of the inner ring fire, avoiding ineffective heating of the inner ring fire caused by the extension structure 51 occupying a large portion of the inner ring gas region 31, that is, heating with excessively low heating efficiency. In the second direction, the extension structure 51 corresponds to the ignition portion of the ignition sensor needle 4, ensuring that the outer ring gas is ignited first after the ignition sensor needle 4 is activated, forming the outer ring fire first, and avoiding the flame spreading and explosion sound caused by the outer ring fire deflagration. Due to the larger outer ring load, more gas overflows from the outer ring during the gas accumulation period, making it easier to achieve the ignition concentration, increasing the ignition success rate, and significantly shortening the ignition time, thereby improving the ignition success rate.

[0043] like Figure 4 As shown, according to an embodiment of the present invention, the ignition sensing needle 4 includes a first sensing portion 431 and a second sensing portion; in the second direction, the first sensing portion 431 corresponds to the inner ring gas area 31, and the second sensing portion corresponds to the outer ring gas area 32.

[0044] In this embodiment, the ignition sensing needle 4 includes a rotating shaft 41, an ignition needle 42 and a sensing needle 43. The rotating shaft 41 is arranged vertically, and the ignition needle 42 and the sensing needle 43 are arranged correspondingly. One end of the ignition needle 42 and the sensing needle 43 is connected to the rotating shaft 41, and the other end is away from the rotating shaft 41. The end of the ignition needle 42 and the sensing needle 43 away from the rotating shaft 41 is the ignition part of the ignition sensing needle 4. The first sensing part 431 and the second sensing part are both arranged on the sensing needle 43, and the first sensing part 431 and the second sensing part are arranged between the two ends of the sensing needle 43. The first sensing part 431 is used to sense the inner ring fire, and the second sensing part is used to sense the outer ring fire. In this way, whether the inner ring fire or the outer ring fire is formed, the ignition sensing needle 4 can achieve corresponding induction, and when no flame is sensed, the gas intake is closed.

[0045] like Figure 1-7 As shown, according to an embodiment of the present invention, the combustion plate 2 is detachably connected to the stove base 1, and the combustion plate 2 is provided with an avoidance hole 21 along the thickness direction, and the combustion plate 2 is sleeved on the outside of the ignition sensing needle 4; the ignition sensing needle 4 moves between a first position and a second position; wherein, when the ignition sensing needle 4 is in the first position, the ignition part of the ignition sensing needle 4 corresponds to the extension structure 51 in the second direction; when the ignition sensing needle 4 is in the second position, the projection of the avoidance hole 21 in the second direction covers the projection of the ignition sensing needle 4.

[0046] In this embodiment, the combustion plate 2 is detachably connected to the stove base 1, so that the combustion plate 2 can be removed for cleaning. The combustion plate 2 includes a combustion plate body 22 and an avoidance hole 21. The combustion plate body 22 is centrally located and is provided with an avoidance hole 21 along the thickness direction. The rotating shaft 41 of the ignition sensing needle 4 passes through the avoidance hole 21, so that the ignition needle 42 and the sensing needle 43 are both arranged above the combustion plate 2. The ignition part of the ignition sensing needle 4 rotates circumferentially in the first direction. When the ignition part of the ignition sensing needle 4 is in the first position, it can be rotated clockwise to move the ignition part of the ignition sensing needle 4 to the second position, and then the combustion plate 2 can be disassembled for cleaning. After cleaning, it is placed on the outside of the ignition sensing needle 4, and then the ignition sensing needle 4 is rotated counterclockwise to move the ignition part of the ignition sensing needle 4 from the second position to the first position.

[0047] like Figure 3 、 5 As shown in FIG. 7 , according to an embodiment of the present invention, a wall structure 52 is provided at the junction of the inner ring gas region 31 and the outer ring gas region 32 , and the wall structure 52 is formed with an extension structure 51 .

[0048] In this embodiment, the wall structure 52 extends upward to a suitable height, with the inner ring gas area 31 and the outer ring gas area 32 on opposite sides of the wall structure 52 . The outer ring gas area 32 surrounds the inner ring gas area 31 . The extension structure 51 is formed on the wall structure 52 .

[0049] like Figure 3 、 5 As shown in Figures 7 and 7, according to an embodiment of the present invention, the partition 5 is movably connected to the furnace base 1, and the partition 5 includes a wall structure 52. The wall structure 52 is annular, and the wall structure 52 rotates along the circumference of the wall structure 52 to adjust the corresponding position of the extension structure 51 and the ignition part of the ignition sensing needle 4.

[0050] In this embodiment, the partition 5 and the combustion plate 2 are both rotatably connected to the furnace base 1, and the partition 5 is connected to the combustion plate 2. By rotating the combustion plate 2, the partition 5 is synchronously driven to rotate in the circumferential direction to adjust the corresponding position with the furnace base 1, as well as the ignition portion of the extension structure 51 and the ignition sensor needle 4 located in the first position.

[0051] like Figure 7 As shown, according to an embodiment of the present invention, the wall structure 52 is uniformly provided with extension structures 51 .

[0052] In this embodiment, when a foreign object blocks a hole in the combustion plate 2, making ignition difficult, the rotating combustion plate 2 drives the partition 5 to rotate circumferentially to adjust the extension structure 51 and the ignition portion of the ignition sensing needle 4 in the first position. That is, the other extension structure 51 is aligned with the ignition portion of the ignition sensing needle 4 in the first position to facilitate subsequent ignition.

[0053] like Figure 3 、 5 As shown in Figure 7, in this embodiment, the wall structure 52 is recessed toward the inner ring gas area 31 to form a gas-containing recess. The gas-containing recess is a structure in which the outer ring gas area 32 extends toward the inner ring gas area 31. The gas-containing recess contains outer ring gas for ignition to form outer ring fire.

[0054] According to an embodiment of the present invention, the extension structure 51 has an opening, and the opening faces the ignition portion of the ignition sensing needle 4 located at the first position.

[0055] Based on the above embodiments, in this embodiment, the gas containing recess is arranged upward and toward the outer ring gas area 32 to form a path for the ignition sensing needle 4 to ignite the outer ring gas, so that the ignition sensing needle 4 can ignite the outer ring gas.

[0056] like Figure 1-3 As shown in , 5 and 6 , according to an embodiment of the present invention, the infrared burner further includes an inner ring airflow channel 6 and an outer ring airflow channel 7 , the inner ring airflow channel 6 is connected to the inner ring gas area 31 , and the outer ring airflow channel 7 is connected to the outer ring gas area 32 .

[0057] In this embodiment, the bottom of the combustion chamber 3 is provided with an inner ring gas inlet communicating with the inner ring gas flow channel 6, and an outer ring gas inlet communicating with the outer ring gas flow channel 7. Both the inner ring gas inlet and the outer ring gas inlet are annular structures, with the outer ring gas inlet surrounding the outer side of the inner ring gas inlet, and a partition 5 disposed between the inner and outer ring gas inlets.

[0058] Based on the same inventive concept, an embodiment of the present application provides a gas stove comprising the infrared burner of any one of the aforementioned embodiments.

[0059] The infrared burner's extension structure 51 is a protrusion of the outer ring gas area 32 and is embedded within the inner ring gas area 31. The extension structure 51 is used to accommodate the outer ring gas. In the first direction, the extension structure 51 is located adjacent to the ignition portion of the ignition sensor needle 4, with only a small portion of the outer ring gas area 32 extending into the inner ring gas area 31. This ensures the heating area and efficiency of the inner ring fire, preventing ineffective heating of the inner ring fire caused by the extension structure 51 occupying a large portion of the inner ring gas area 31, i.e., heating with excessively low heating efficiency. In the second direction, the extension structure 51 corresponds to the ignition portion of the ignition sensor needle 4. This ensures that upon activation, the outer ring gas is the first to ignite, forming the outer ring fire. This prevents the outer ring fire from deflagration, which can cause flames to spread and produce explosive sounds. Due to the greater load on the outer ring, more gas overflows from the outer ring during the gas accumulation period, making it easier to achieve an ignition concentration, increasing the ignition success rate, and significantly shortening the ignition time, thereby improving the ignition success rate.

[0060] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0061] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0062] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0063] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0064] The above description is only part of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An infrared burner, characterized in that: include: A furnace base (1) having a recess; A combustion plate (2) is arranged on the stove base (1) and is surrounded by the recess to form a combustion chamber (3); An ignition sensing needle (4) is arranged on a side of the combustion plate (2) opposite to the gas chamber (3); the ignition sensing needle (4) comprises a first sensing portion (431) and a second sensing portion; in the second direction, the first sensing portion (431) corresponds to the inner ring gas area (31), and the second sensing portion corresponds to the outer ring gas area (32); A separator (5) is provided in the gas cavity (3) and is used to define a boundary between an inner ring gas area (31) and an outer ring gas area (32), wherein the boundary extends toward the inner ring gas area (31) to form an extension structure (51); a wall structure (52) is provided at the boundary between the inner ring gas area (31) and the outer ring gas area (32), wherein the wall structure (52) forms the extension structure (51); and the wall structure (52) is recessed toward the inner ring gas area (31) to form the extension structure (51); The extension structure (51) is close to the ignition portion of the ignition sensing needle (4) in the first direction, and corresponds to the ignition portion of the ignition sensing needle (4) in the second direction, so as to ignite first to form an outer ring fire; the first direction and the second direction are perpendicular to each other.

2. The infrared burner according to claim 1, characterized in that The combustion plate (2) is detachably connected to the furnace base (1); a avoidance hole (21) is provided on the combustion plate (2) along the thickness direction; the combustion plate (2) is sleeved on the outside of the ignition sensing needle (4); the ignition sensing needle (4) moves between a first position and a second position; When the ignition sensing needle (4) is in the first position, the ignition portion of the ignition sensing needle (4) corresponds to the extension structure (51) in the second direction; when the ignition sensing needle (4) is in the second position, the projection of the avoidance hole (21) in the second direction covers the projection of the ignition sensing needle (4).

3. The infrared burner according to claim 1, characterized in that The partition (5) is movably connected to the furnace base (1), and the partition (5) includes the wall structure (52). The wall structure (52) is annular, and the wall structure (52) rotates along the circumference of the wall structure (52) to adjust the corresponding position of the extension structure (51) and the ignition part of the ignition sensing needle (4).

4. The infrared burner according to claim 3, characterized in that The wall structure (52) is evenly provided with the extension structure (51).

5. The infrared burner according to claim 2, characterized in that The extension structure (51) has an opening, and the opening faces the ignition portion of the ignition sensing needle (4) located at the first position.

6. The infrared burner according to any one of claims 1 to 5, characterized in that Also includes: An inner ring airflow channel (6) and an outer ring airflow channel (7), wherein the inner ring airflow channel (6) is in communication with the inner ring gas region (31), and the outer ring airflow channel (7) is in communication with the outer ring gas region (32).

7. A gas stove, characterized in that: include: The infrared burner according to any one of claims 1 to 6.

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