Combustor and stove

Abstract

The utility model relates to the technical field of kitchen utensils, and discloses a burner and a stove. The stove comprises a combustor, the combustor comprises a central fire cover, an outer ring fire cover, an ignition needle and a thermocouple, the outer ring fire cover is arranged on the periphery of the central fire cover, the ignition needle and the thermocouple are located between the outer ring fire cover and the central fire cover, and an ignition hole is formed in the central fire cover; the outer ring fire cover is provided with a shielding part extending towards the center fire cover, and the shielding part is configured to be at least capable of shielding one of the ignition hole, the ignition needle and the thermocouple from the upper portion, so that the protection effect on the ignition hole, the ignition needle and the thermocouple is enhanced, overflowing liquid and other objects are prevented from blocking the ignition hole, and the overflowing liquid is prevented from dripping on the ignition needle or the thermocouple to cause damage. The ignition and fire retaining performance is improved; and secondly, the shielding part is arranged on the outer ring fire cover, so that the shielding part can be arranged to be larger, the protection effect is better, and machining is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a burner and a stove. Background Art

[0002] A stove is a kitchen appliance required for cooking in daily life. The stove includes a burner, which usually includes a thermocouple, an ignition needle, a center fire cover, and an outer ring fire cover arranged on the outer ring of the center fire cover. Current stoves generally ignite and maintain fire on the inner ring, that is, an ignition hole is provided on the side of the center fire cover, and the thermocouple and the ignition needle are arranged between the center fire cover and the outer ring fire cover.

[0003] When users use the stove to cook, the pot sometimes overflows. The overflowing debris can easily cause the ignition hole of the center fire cover to be blocked, affecting the ignition performance of the stove. Secondly, the overflowing soup and oil can easily splash onto the ignition needle or thermocouple, causing damage to the thermocouple or ignition needle, resulting in poor ignition and fire-keeping performance of the stove.

[0004] In order to be able to shield at least one of the ignition hole, the ignition needle, and the thermocouple, in the prior art, a shielding structure is usually formed at the edge of the center fire cover. Since the size of the center fire cover itself is relatively small, if the shielding structure is set too small, its protective effect is poor. If the shielding structure is set too large, the center fire cover will be difficult to process.

[0005] Therefore, it is urgent to provide a burner and a stove to solve the above problems. Utility Model Content

[0006] One purpose of the utility model is to provide a burner, which has a better protection effect and is easy to process by arranging a shielding part on the outer ring fire cover.

[0007] Another object of the present invention is to provide a stove, which can improve the ignition and fire-keeping performance of the stove by arranging the above-mentioned burner.

[0008] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0009] A burner, comprising a central fire cover, an outer ring fire cover, an ignition needle and a thermocouple, wherein the outer ring fire cover is arranged on the outer periphery of the central fire cover, the ignition needle and the thermocouple are both located between the outer ring fire cover and the central fire cover, and the central fire cover is provided with an ignition hole;

[0010] The outer ring fire cover is provided with a shielding portion extending toward the central fire cover, and the shielding portion is configured to shield at least one of the ignition hole, the ignition needle, and the thermocouple from above.

[0011] As an optional solution, the shielding portion is configured to be able to shield the ignition hole, the ignition needle and the thermocouple from above at the same time.

[0012] As an optional solution, the shielding portion extends toward the center of the outer ring fire cover to above the central fire cover.

[0013] As an optional solution, the shielding portion includes a first shielding member and a second shielding member, the first shielding member is located above the central fire cover, and the second shielding member is connected between the outer ring fire cover and the first shielding member.

[0014] As an optional solution, the shielding portion and the outer ring fire cover are an integrally formed structure; or the shielding portion and the outer ring fire cover are a split structure.

[0015] As an optional scheme, a flame stabilizing groove and a plurality of inner ring main fire holes are further provided on the side wall of the center fire cover, the flame stabilizing groove is arranged around the circumference of the center fire cover, and the plurality of inner ring main fire holes are distributed along the circumference of the center fire cover, and the flame stabilizing groove is connected to the ignition hole and at least one of the inner ring main fire holes.

[0016] As an optional solution, the inner ring main fire hole is arranged on the upper side of the flame stabilizing groove, and the ignition hole is arranged on the lower side of the flame stabilizing groove.

[0017] As an optional solution, the burner also includes a burner head and a gas distribution plate arranged on the burner head, the ignition needle and the thermocouple are arranged adjacent to the burner head, and the center fire cover and the outer ring fire cover are both covered on the gas distribution plate.

[0018] As an optional solution, a first positioning structure is provided on the outer ring fire cover, and a second positioning structure is provided on the gas distribution plate, and the first positioning structure cooperates with the second positioning structure to position the outer ring fire cover on the gas distribution plate; and / or

[0019] The center fire cover is provided with a first mounting hole, and the gas distribution plate is provided with a second mounting hole at a position corresponding to the first mounting hole. The first connecting member passes through the first mounting hole and the second mounting hole in sequence to fix the center fire cover on the gas distribution plate.

[0020] A cooking appliance comprising the burner mentioned above.

[0021] The beneficial effects of the utility model are:

[0022] The burner provided by the utility model can shield at least one of the ignition hole, the ignition needle, and the thermocouple from above by arranging a shielding portion on the outer ring fire cover, thereby enhancing the protective effect on the ignition hole, the ignition needle, or the thermocouple, preventing overflow liquid and the like from clogging the ignition hole, preventing overflow liquid from dripping on the ignition needle and the thermocouple, thereby increasing the service life of the ignition needle and the thermocouple, and improving the ignition and fire-keeping performance. Secondly, compared with the prior art in which the shielding portion is arranged on the central fire cover, the utility model arranges the shielding portion on the outer ring fire cover, so that the shielding portion can be arranged larger, with better protective effect and easy processing.

[0023] The stove provided by the utility model can improve the ignition and fire-keeping performance of the stove by arranging the above-mentioned burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to explain the embodiments of the utility model or the technical solutions in the prior art more clearly and easily, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. The drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of a burner provided in an embodiment of the utility model;

[0026] Figure 2 is a cross-sectional view of a burner provided by an embodiment of the utility model;

[0027] Figure 3 It is an exploded diagram of a burner provided in an embodiment of the utility model.

[0028] In the figure:

[0029] 10. Center fire cover; 11. Ignition hole; 12. Inner ring main fire hole; 13. Flame stabilizing groove; 14. First mounting hole;

[0030] 20. outer ring fire cover; 21. shielding part; 211. first shielding member; 212. second shielding member; 22. outer ring main fire hole;

[0031] 30. Ignition needle;

[0032] 40. Thermocouple;

[0033] 50, gas distribution plate; 51, outer ring of gas distribution plate; 511, air outlet cavity of outer ring; 52, inner ring of gas distribution plate; 521, air outlet cavity of inner ring; 522, second mounting hole;

[0034] 60. Burner head; 61. Burner head outer ring; 611. External ejector tube; 612. External ring gas mixing chamber; 62. Burner head inner ring; 621. Internal ejector tube; 622. Internal ring gas mixing chamber. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0039] This embodiment provides a burner such as Figures 1 to 3As shown, the burner includes a burner head 60, a gas distribution plate 50, a center fire cover 10, an outer ring fire cover 20, an ignition needle 30 and a thermocouple 40. The gas distribution plate 50 is arranged on the burner head 60, the outer ring fire cover 20 is arranged on the periphery of the center fire cover 10, and the center fire cover 10 and the outer ring fire cover 20 are both covered on the gas distribution plate 50. The ignition needle 30 and the thermocouple 40 are both arranged on the burner head 60. The ignition needle 30 and the thermocouple 40 are arranged adjacent to each other and are both located between the outer ring fire cover 20 and the center fire cover 10. A plurality of ignition holes 11 are arranged on the side wall of the center fire cover 10, and the ignition needle 30 and the thermocouple 40 are respectively arranged opposite to the plurality of ignition holes 11. Among them, the outer ring fire cover 20 is provided with a shielding portion 21 extending toward the center fire cover 10, and the shielding portion 21 is configured to be able to shield at least one of the ignition hole 11, the ignition needle 30 and the thermocouple 40 from above. Preferably, as Figure 1 As shown, in this embodiment, since the ignition needle 30 and the thermocouple 40 are arranged adjacent to each other and respectively opposite to the ignition hole 11, the three are arranged relatively compactly, and the shielding portion 21 can shield the ignition hole 11, the ignition needle 30 and the thermocouple 40 from above at the same time. In other embodiments, if the ignition hole 11, the ignition needle 30 and the thermocouple 40 are arranged relatively dispersedly, multiple smaller shielding portions 21 can also be provided to shield the three separately.

[0040] The burner provided in this embodiment can simultaneously shield the ignition hole 11, the ignition needle 30 and the thermocouple 40 by setting a shielding portion 21 on the outer ring fire cover 20, thereby enhancing the protective effect on the ignition hole 11, the ignition needle 30 and the thermocouple 40, preventing overflow liquid and the like from clogging the ignition hole 11, and preventing overflow liquid from dripping onto the ignition needle 30 and the thermocouple 40, causing the thermocouple 40 and the ignition needle 30 to be damaged and fail, thereby increasing the service life of the ignition needle 30 and the thermocouple 40, and improving the ignition and fire-keeping performance. Secondly, compared with the prior art in which the shielding portion 21 is set on the central fire cover 10, the present embodiment sets the shielding portion 21 on the outer ring fire cover 20, so that the shielding portion 21 can be set larger, with better protective effect and easy processing.

[0041] In an optional embodiment, if Figures 1 to 3 As shown, the gas distribution plate 50 includes an independent gas distribution plate outer ring 51 and a gas distribution plate inner ring 52, wherein the gas distribution plate outer ring 51 is arranged on the outer periphery of the gas distribution plate inner ring 52 and is spaced apart from the gas distribution plate inner ring 52. The outer ring fire cover 20 is buckled on the gas distribution plate outer ring 51 and forms an outer ring air outlet cavity 511 with the gas distribution plate outer ring 51. A circle of outer ring main fire holes 22 are provided on the outer wall of the outer ring fire cover 20, and the outer ring main fire holes 22 are connected to the outer ring air outlet cavity 511; the central fire cover 10 is buckled on the gas distribution plate inner ring 52 and forms an inner ring air outlet cavity 521 with the gas distribution plate inner ring 52. A plurality of inner ring main fire holes 12 are provided on the outer wall of the central fire cover 10 along its circumference, and the inner ring main fire holes 12 are connected to the inner ring air outlet cavity 521.

[0042] like Figure 2 and Figure 3 As shown, the burner head 60 includes a burner head outer ring 61 and a burner head inner ring 62 which are independent of each other, and the burner head outer ring 61 and the burner head inner ring 62 are arranged side by side, so that the burner is an eccentric structure, wherein the burner head outer ring 61 includes a connected outer injector tube 611 and an outer ring mixing chamber 612, the outer injector tube 611 is used to introduce a mixed gas of air and fuel gas into the outer ring mixing chamber 612, and the outer ring mixing chamber 612 is connected to the outer ring outlet chamber 511; the burner head inner ring 62 includes a connected inner injector tube 621 and an inner ring mixing chamber 622, the inner injector tube 621 is used to introduce a mixed gas of air and fuel gas into the inner ring mixing chamber 622, and the inner ring mixing chamber 622 is connected to the inner ring outlet chamber 521.

[0043] When in use, the gas is sprayed into the outer injector tube 611 through the outer ring nozzle, the gas and air are mixed in the outer ring mixing chamber 612 to form a mixed gas, the mixed gas enters the outer ring outlet chamber 511, and is then discharged from the outer ring main fire hole 22 and burns to form an outer ring flame; at the same time, the gas is sprayed into the inner injector tube 621 through the inner ring nozzle, the gas and air are mixed in the inner ring mixing chamber 622 to form a mixed gas, the mixed gas enters the inner ring outlet chamber 521, and is then discharged from the inner ring main fire hole 12 and burns to form an inner ring flame.

[0044] The inner ring air outlet cavity 521 is also connected to the ignition hole 11. During ignition, the ignition needle 30 can generate sparks to ignite the mixed gas at the ignition hole 11. After ignition, the ignition hole 11 is ignited first, followed by all the inner ring main fire holes 12, and finally all the outer ring main fire holes 22. The thermocouple 40 is used to detect the combustion temperature at the ignition hole 11. When the combustion temperature exceeds the preset range, the thermocouple 40 transmits the real-time temperature to the controller, and the controller controls the gas valve to adjust the gas output in real time to ensure the stability of the combustion temperature and improve the fire protection performance.

[0045] In an optional embodiment, if Figure 3 As shown, multiple ignition holes 11 and multiple inner ring main fire holes 12 are staggered, that is, only a small part of the circumferential surface of the center fire cover 10 blocked by the shielding portion 21 is provided with ignition holes 11, and this small part of the circumferential surface is not provided with inner ring main fire holes 12, and the remaining circumferential surfaces of the center fire cover 10 not blocked by the shielding portion 21 are provided with inner ring main fire holes 12, so as to avoid the shielding portion 21 being damaged by long-term heating and burning during combustion.

[0046] In an optional embodiment, the shielding portion 21 and the outer ring fire cover 20 are an integrally formed structure, which is conducive to simplifying the manufacturing process, reducing the number of parts and construction steps, reducing the cost of accessories, and also conducive to improving the overall structural strength of the outer ring fire cover 20. The outer ring fire cover 20 and the central fire cover 10 are a split structure. When installed, there is a gap of 1 to 2 mm between the shielding portion 21 and the central fire cover 10 along the axial direction of the central fire cover 10.

[0047] In another optional embodiment, the shielding portion 21 and the outer ring fire cover 20 may also be a split structure. That is, the shielding portion 21 and the outer ring fire cover 20 are manufactured separately, and during installation, the shielding portion 21 can be detachably connected to the outer ring fire cover 20 by means of clamping, bolting, etc., which is convenient for disassembly and maintenance.

[0048] In an optional embodiment, if Figure 1 As shown, the shielding portion 21 extends toward the center of the outer ring fire cover 20 to the top of the central fire cover 10. This arrangement enables the shielding portion 21 to simultaneously shield the ignition hole 11, the ignition needle 30 and the thermocouple 40 to the greatest extent, thereby enhancing the protective effect, preventing overflow liquid and the like from clogging the ignition hole 11, and preventing overflow liquid from dripping onto the ignition needle 30 and the thermocouple 40, thereby improving the ignition and fire protection performance.

[0049] Specifically, Figure 1 and Figure 3 As shown, the shielding part 21 includes a first shielding member 211 and a second shielding member 212, wherein the first shielding member 211 is located above the central fire cover 10, and the second shielding member 212 is connected between the outer ring fire cover 20 and the first shielding member 211, and the second shielding member 212 is located above the ignition needle 30 and the thermocouple 40. Therefore, through the cooperation of the first shielding member 211 and the second shielding member 212, the ignition hole 11, the ignition needle 30 and the thermocouple 40 can be shielded to the greatest extent at the same time, thereby enhancing the protection effect and improving the ignition and fire protection performance. Among them, the first shielding member 211 is located above the central fire cover 10 and is in a circular ring shape, which is adapted to the shape of the central fire cover 10 and improves the aesthetic appearance.

[0050] In an optional embodiment, if Figure 1 and Figure 3 As shown, a flame stabilizing groove 13 is also provided on the side wall of the center fire cover 10. The flame stabilizing groove 13 is arranged around the circumference of the center fire cover 10. The flame stabilizing groove 13 is connected to at least one of the multiple inner ring main fire holes 12, so as to have a flame stabilizing effect on the flame of the inner ring main fire hole 12.

[0051] In an optional embodiment, if Figure 1 and Figure 3As shown, the inner ring main fire hole 12 is arranged on the upper side of the flame stabilizing groove 13, and the ignition hole 11 is arranged on the lower side of the flame stabilizing groove 13, and the flame stabilizing groove 13 is connected with the inner ring main fire hole 12 and the ignition hole 11 respectively. During ignition, after the mixed gas enters the ignition hole 11, the ignition hole 11 will also provide fuel gas to the flame stabilizing groove 13. When a flame is generated at the ignition hole 11, the airflow in the flame stabilizing groove 13 can effectively play a flame stabilizing effect, stabilize the flame in the ignition hole 11, and greatly improve the success rate of ignition. After the ignition is successful, the flame stabilizing groove 13 can also play a flame stabilizing effect on the inner ring main fire hole 12.

[0052] In an optional embodiment, if Figure 3 As shown, a first mounting hole 14 is provided on the center fire cover 10, and a second mounting hole 522 is provided on the top side of the innermost ring wall of the gas distribution plate 50. The second mounting hole 522 corresponds to the position of the first mounting hole 14. A first connecting member (not shown) is sequentially penetrated through the first mounting hole 14 and the second mounting hole 522 to fix the center fire cover 10 on the gas distribution plate 50, so that during normal use, the center fire cover 10 will not rotate relative to the ignition needle 30 and the thermocouple 40, thereby ensuring the ignition and fire-keeping performance.

[0053] Among them, in an optional embodiment, the first mounting hole 14 can be a plain hole, the second mounting hole 522 can be a threaded hole, and the first connecting member can be a screw, which passes through the first mounting hole 14 and is threadedly connected with the second mounting hole 522, thereby stably fixing the center fire cover 10 on the gas distribution plate 50. In another optional embodiment, both the first mounting hole 14 and the second mounting hole 522 can be plain holes, and the first connecting member can be a latch, which passes through the first mounting hole 14 and the second mounting hole 522 in sequence, thereby fixing the center fire cover 10 on the gas distribution plate 50.

[0054] In an optional embodiment, if Figure 3 As shown, the first mounting hole 14 and the second mounting hole 522 are respectively set to two, the two first mounting holes 14 are symmetrically arranged, the two second mounting holes 522 are symmetrically arranged, and a first connecting piece is passed through each of the first mounting hole 14 and the second mounting hole 522. This arrangement can ensure the stability and reliability of the connection between the center fire cover 10 and the gas distribution plate 50. In other embodiments, the number of the first mounting hole 14, the second mounting hole 522 and the first connecting piece can also be set to three, four or more, which can be flexibly set according to actual needs, and no specific limitation is made here.

[0055] In an optional embodiment, a first positioning structure (not shown) is provided on the outer ring fire cover 20, and a second positioning structure (not shown) is provided on the gas distribution plate 50, and the first positioning structure cooperates with the second positioning structure to position the outer ring fire cover 20 on the gas distribution plate 50. Through the cooperation between the first positioning structure and the second positioning structure, it can be ensured that after the outer ring fire cover 20 is installed, the shielding portion 21 can be located at a specified position, that is, the shielding portion 21 simultaneously shields the ignition hole 11, the ignition needle 30 and the thermocouple 40. Among them, the number of the first positioning structure and the second positioning structure can be set to one, two or more, which can be flexibly set according to actual needs, and no specific limitation is made here.

[0056] In an optional embodiment, the first positioning structure is a positioning protrusion, and the second positioning structure is a positioning groove. After the outer ring fire cover 20 is installed on the gas distribution plate 50, the positioning protrusion is plugged into the positioning groove. The plugging and matching of the positioning protrusion and the positioning groove can play a positioning role, ensuring that after the outer ring fire cover 20 is installed, the shielding part 21 can be located at a specified position, that is, the shielding part 21 shields the ignition hole 11, the ignition needle 30 and the thermocouple 40 at the same time.

[0057] It should be noted that if Figure 2 As shown, the cooperation between the outer ring fire cover 20 and the gas distribution plate 50 is specifically the cooperation between the outer ring fire cover 20 and the outer ring 51 of the gas distribution plate, the inner ring side wall of the outer ring fire cover 20 is docked with the inner ring side wall of the outer ring 51 of the gas distribution plate, and the outer ring side wall of the outer ring fire cover 20 is docked with the outer ring side wall of the outer ring 51 of the gas distribution plate. The above-mentioned positioning protrusion can be protruding from the bottom end of the inner ring side wall of the outer ring fire cover 20, and the positioning groove can be set at the top end of the inner ring side wall of the outer ring 51 of the gas distribution plate, so that the positioning protrusion and the positioning groove are convenient to cooperate.

[0058] In another optional embodiment, the first positioning structure may also be a positioning groove, and the second positioning structure may also be a positioning protrusion, which can also achieve the above-mentioned effect.

[0059] In another optional embodiment, the first positioning structure may be a first positioning hole, and the second positioning structure may be a second positioning hole. The first positioning hole and the second positioning hole correspond to each other and are provided with a second connecting piece. After the outer ring fire cover 20 is installed on the gas distribution plate 50, the positions of the first positioning hole and the second positioning hole are first aligned. After alignment, the second connecting piece is passed through the first mounting hole 14 and the second mounting hole 522 to fix the positions of the outer ring fire cover 20 and the gas distribution plate 50. After the positions of the first positioning hole and the second positioning hole are aligned, it can also be ensured that the shielding portion 21 is located at the specified position, that is, the shielding portion 21 simultaneously shields the ignition hole 11, the ignition needle 30 and the thermocouple 40.

[0060] Among them, in an optional embodiment, the first positioning hole can be directly opened in the longitudinal direction on the inner ring side wall of the outer ring fire cover 20, and the second positioning hole can be directly opened in the longitudinal direction on the inner ring side wall of the gas distribution plate outer ring 51. In another optional embodiment, lugs can be provided on the inner ring side wall of the outer ring fire cover 20 and the inner ring side wall of the gas distribution plate outer ring 51, respectively, and the first positioning hole and the second positioning hole can be opened on the corresponding lugs, which can also achieve the above effect.

[0061] In an optional embodiment, the first positioning hole may be a plain hole, the second positioning hole may be a threaded hole, and the second connecting member may be a screw, which passes through the first positioning hole and is threadedly connected to the second positioning hole, thereby stably fixing the outer ring fire cover 20 on the gas distribution plate 50. In another optional embodiment, both the first positioning hole and the second positioning hole may be plain holes, and the second connecting member may be a latch, which passes through the first positioning hole and the second positioning hole in sequence, thereby positioning the outer ring fire cover 20 on the gas distribution plate 50.

[0062] In an optional embodiment, the gas distributor 50 is formed by integral die casting. The integral die casting structure is conducive to simplifying the manufacturing process of the gas distributor 50, reducing the number of parts and construction steps, reducing the cost of accessories, and also conducive to improving the overall structural strength of the gas distributor 50.

[0063] The present embodiment also provides a stove, which mainly includes a gas valve, a gas path connecting unit and the above-mentioned burner, wherein the inlet of the gas valve is connected to an external gas supply source, and the outlet of the gas valve is connected to the inner ejection pipe 621 and the outer ejection pipe 611 of the burner respectively through the gas path connecting unit. The gas valve is used for user operation to control whether the gas enters the burner for combustion, and to control the amount of gas entering the burner, so that the burner can cook the pot in different modes. Among them, the specific structure and working principle of the stove are prior art, which will not be described in detail here. The stove provided in this embodiment can improve the ignition and fire-keeping performance of the stove by setting the above-mentioned burner.

[0064] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A burner, characterized in that: The invention comprises a central fire cover (10), an outer ring fire cover (20), an ignition needle (30) and a thermocouple (40), wherein the outer ring fire cover (20) is arranged on the outer periphery of the central fire cover (10), the ignition needle (30) and the thermocouple (40) are both located between the outer ring fire cover (20) and the central fire cover (10), and the central fire cover (10) is provided with an ignition hole (11); The outer ring fire cover (20) is provided with a shielding portion (21) extending toward the central fire cover (10), and the shielding portion (21) is configured to shield at least one of the ignition hole (11), the ignition needle (30), and the thermocouple (40) from above.

2. The burner according to claim 1, characterized in that The shielding portion (21) is configured to simultaneously shield the ignition hole (11), the ignition needle (30), and the thermocouple (40) from above.

3. The burner according to claim 2, characterized in that: The shielding portion (21) extends toward the center of the outer ring fire cover (20) to above the central fire cover (10).

4. The burner according to claim 3, characterized in that The shielding portion (21) comprises a first shielding member (211) and a second shielding member (212), wherein the first shielding member (211) is located above the central fire cover (10), and the second shielding member (212) is connected between the outer ring fire cover (20) and the first shielding member (211).

5. The burner according to any one of claims 1 to 4, characterized in that: The shielding portion (21) and the outer ring fire cover (20) are an integrally formed structure; or the shielding portion (21) and the outer ring fire cover (20) are a split structure.

6. The burner according to any one of claims 1 to 4, characterized in that: The side wall of the center fire cover (10) is also provided with a flame stabilizing groove (13) and a plurality of inner ring main fire holes (12); the flame stabilizing groove (13) is arranged around the circumference of the center fire cover (10); the plurality of inner ring main fire holes (12) are distributed around the circumference of the center fire cover (10); the flame stabilizing groove (13) is connected to the ignition hole (11) and at least one of the inner ring main fire holes (12).

7. The burner according to claim 6, characterized in that The inner ring main fire hole (12) is arranged on the upper side of the flame stabilizing groove (13), and the ignition hole (11) is arranged on the lower side of the flame stabilizing groove (13).

8. The burner according to any one of claims 1 to 4, characterized in that: The burner further comprises a burner head (60) and a gas distribution plate (50) arranged on the burner head (60); the ignition needle (30) and the thermocouple (40) are arranged adjacent to the burner head (60); and the central fire cover (10) and the outer ring fire cover (20) are both covered on the gas distribution plate (50).

9. The burner according to claim 8, characterized in that The outer ring fire cover (20) is provided with a first positioning structure, and the gas distribution plate (50) is provided with a second positioning structure, and the first positioning structure cooperates with the second positioning structure to position the outer ring fire cover (20) on the gas distribution plate (50); and / or The center fire cover (10) is provided with a first mounting hole (14), and the gas distribution plate (50) is provided with a second mounting hole (522) at a position corresponding to the first mounting hole (14), and a first connecting member is sequentially passed through the first mounting hole (14) and the second mounting hole (522) to fix the center fire cover (10) on the gas distribution plate (50).

10. A cooking appliance, characterized in that: It comprises the burner as claimed in any one of claims 1 to 9.

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