Combustor, gas stove and integrated electric appliance

Abstract

The utility model discloses a combustor, a gas stove and an integrated electric appliance. The burner comprises a first fire hole and a second fire hole, the first fire hole is suitable for spraying out fuel gas and blast air, the second fire hole is suitable for spraying out fuel gas and injection air, and the second fire hole is close to the center of the burner relative to the first fire hole. According to the technical scheme, fuel gas and blast air are sprayed out through the first fire hole, the blast air provides sufficient oxygen so that the fuel gas sprayed out through the first fire hole can be fully combusted, and redundant oxygen can be generated by the blast air to assist combustion of the fuel gas sprayed out through the second fire hole; in this way, gas sprayed out of the second fire opening can be fully combusted under the action of redundant oxygen provided by the ejection air and the blast air, finally, the gas sprayed out of the first fire opening and the second fire opening is fully combusted, the combustion efficiency is high, and improvement of the heat efficiency of the gas stove is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of gas stoves, and particularly relates to a burner, a gas stove, and an integrated electrical appliance. Background Art

[0002] The combustion of the burner of a gas stove requires the participation of primary air and secondary air. Generally, the primary air is mixed with the gas through an ejector effect. However, the amount of primary air is affected by the structure and working conditions. The supplement of secondary air depends on buoyancy and entrainment effects, which have relatively high requirements for the dimensions of components. Therefore, the thermal efficiency of gas stoves still needs to be improved. Summary of the Utility Model

[0003] This application aims to solve at least one of the technical problems in the related art to some extent. For this purpose, this application provides a burner.

[0004] To achieve the above object, this application discloses a burner, which includes:

[0005] A first burner port adapted to eject gas and blast air; and

[0006] A second burner port adapted to eject gas and ejector air, and the second burner port is closer to the center of the burner than the first burner port.

[0007] In some embodiments of this application, the flame generated by the second burner port is adapted to stabilize the flame of the first burner port.

[0008] In some embodiments of this application, the burner includes an annular wall surface surrounding the center of the burner. The annular wall surface gradually expands from bottom to top and encloses a first space, and the first burner port and the second burner port are arranged on the annular wall surface.

[0009] In some embodiments of this application, the first burner port is higher than the second burner port, and the minimum distance between the first burner port and the second burner port along the axial direction of the burner is not greater than 15 mm, and the minimum distance along the radial direction of the burner is not greater than 10 mm.

[0010] In some embodiments of this application, the burner includes a plurality of the first burner ports, and the plurality of the first burner ports are arranged in an annular and alternating manner and surround the second burner port;

[0011] And / or, the burner includes a plurality of the second burner ports, and the plurality of the second burner ports are arranged in an annular and alternating manner.

[0012] In some embodiments of the present application, the burner includes a first channel and a second channel. The end of the first channel forms the first flame outlet, and the end of the second channel forms the second flame outlet. A plurality of the first channels are arranged in a rotational pattern along a first direction, and a plurality of the second channels are arranged in a rotational pattern along a second direction opposite to the first direction.

[0013] In some embodiments of the present application, the first flame outlet is in the form of an annular slit and surrounds the second flame outlet;

[0014] And / or, the second flame outlet is in the form of an annular slit.

[0015] In some embodiments of the present application, the burner includes a burner head and a burner cap disposed on the burner head. The burner head is provided with a first cavity and a second cavity. The burner cap is provided with the first flame outlet and the second flame outlet. The first cavity is adapted to receive gas and blast air and is in communication with the first flame outlet, and the second cavity is adapted to receive gas and entrained air and is in communication with the second flame outlet.

[0016] In some embodiments of the present application, the burner cap includes a first burner cap and a second burner cap. The first burner cap surrounds the second burner cap, and the first flame outlet is provided between the first burner cap and the second burner cap. The second burner cap is provided with the second flame outlet.

[0017] In some embodiments of the present application, the burner includes a first ejector tube and a second ejector tube. The first ejector tube is connected to the burner head and is in communication with the first cavity. The intake end of the first ejector tube is adapted to receive gas and blast air. The second ejector tube is connected to the burner head and is in communication with the second cavity. The intake end of the second ejector tube is adapted to receive gas and entrained air.

[0018] The present application also discloses a gas stove, which includes the above-mentioned burner.

[0019] In some embodiments of the present application, the gas stove includes a valve body, which is adapted to adjust the gas volume. When the gas supply to the first flame outlet is interrupted in the valve body, the valve body is adapted to maintain the gas supply to the second flame outlet, and the blower of the gas stove is in a working state to provide blast air.

[0020] The present application also discloses an integrated stove, which includes the above-mentioned gas stove.

[0021] In the technical solution, the gas from the first burner port and the blast air are ejected. The blast air provides sufficient oxygen for the complete combustion of the gas ejected from the first burner port. Moreover, the blast air can generate excess oxygen to assist the combustion of the gas ejected from the second burner port. In this way, the gas ejected from the second burner port can also be completely combusted under the action of the induced air and the excess oxygen provided by the blast air. Through this arrangement, finally, the gas ejected from the first burner port and the second burner port can be completely combusted, with high combustion efficiency, which is beneficial to improving the thermal efficiency of the gas stove.

[0022] Other advantages of the present application will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other designs can also be obtained based on the structures shown in these drawings.

[0024] Figure 1 Schematic diagram of the burner in some embodiments;

[0025] Figure 2 is Figure 1 the enlarged view of the part marked A in

[0026] Figure 3 Schematic diagram of the burner in some embodiments (with a different perspective from Figure 1 )

[0027] Figure 4 is Figure 3 the enlarged view of the part marked B in

[0028] Figure 5 Cross-sectional view of the burner in some embodiments;

[0029] Figure 6 Cross-sectional view of the burner in some embodiments (with a different cross-section from Figure 5 )

[0030] Figure 7 Cross-sectional view of the burner in some embodiments (with the same cross-section as Figure 6 , but with a different perspective from Figure 6 )

[0031] Figure 8 is Figure 7 the enlarged view of the part marked C in

[0032] Figure 9Schematic diagram of the burner cap in some embodiments;

[0033] Figure 10 Schematic diagram of the burner cap in some embodiments (with a different viewing angle from Figure 9 );

[0034] Figure 11 Cross-sectional view of the burner cap in some embodiments;

[0035] Figure 12 Cross-sectional view of the second burner cap in some embodiments (from a top-down perspective);

[0036] Figure 13 Schematic diagram of the burner cap in some embodiments (the first burner orifice is in the form of an annular slit);

[0037] Figure 14 Schematic diagram of the burner cap in some embodiments (the first burner orifice is in the form of an annular slit, with a different viewing angle from Figure 13 );

[0038] Figure 15 Schematic diagram of the burner head in some embodiments.

[0039] Explanation of the reference numerals in the drawings:

[0040] Burner 100, burner cap 1000, first burner cap 1100, second burner cap 1200, first channel 1300, first burner orifice 1310, second channel 1400, second burner orifice 1410, annular wall surface 1500, first space 1510, burner head 2000, first cavity 2100, second cavity 2200, first ejector tube 3100, intake end of the first ejector tube 3110, second ejector tube 3200, intake end of the second ejector tube 3210, blower 4000.

[0041] The realization of the objectives of this application, its functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of this application will be clearly and completely described with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without making creative efforts belong to the scope of protection of this application.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of this application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, the directional indications will also change accordingly.

[0044] In this application, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" can explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0046] The first aspect of this application discloses a burner 100, as shown in combination with Figure 1 、 Figure 2 、 Figure 9 and Figure 10 , the burner 100 includes a first burner port 1310 and a second burner port 1410. The first burner port 1310 is used for the blast air and the gas to be ejected, and the second burner port 1410 is used for the induced air and the gas to be ejected. And the second burner port 1410 is closer to the center of the burner 100 relative to the first burner port 1310. In this embodiment, the first burner port 1310 ejects the blast air and the gas. The blast air provides sufficient oxygen to enable the gas ejected from the first burner port 1310 to burn fully, and the blast air can generate excess oxygen to assist the combustion of the gas ejected from the second burner port 1410. In this way, the gas ejected from the second burner port 1410 can also burn fully under the action of the induced air and the excess oxygen provided by the blast air. By such a setting, finally, the gas ejected from the first burner port 1310 and the second burner port 1410 burns fully, with high combustion efficiency, which is beneficial to the improvement of the thermal efficiency of the gas stove.

[0047] The burner 100 will be described below in combination with a gas stove. It can be understood that in addition to being applied to a gas stove, the burner 100 can also be applied to other devices that work through gas combustion.

[0048] In the related art, a gas stove includes a valve body. After the valve body is opened, the gas of canned liquefied gas or pipeline natural gas is transmitted along the pipeline. The gas passes through the valve body and is ejected through a nozzle. The gas ejected from the nozzle is sprayed into the interior of the burner. During the process of the gas being sprayed into the interior of the burner, the entrainment of air is synchronously achieved. For the entrainment of air, reference can be made to the related art, which is generally based on the Venturi principle. During the process of the gas being sprayed into the interior of the burner, a negative pressure is formed on the surrounding environment, so that the air in the surrounding environment is entrained into the interior of the burner synchronously with the ejection of the gas (the air that enters the interior of the burner through the entrainment action is called entrained air, and the entrained air is primary air). After the entrained air and the gas are mixed in the interior of the burner, they are ejected from the interior of the burner and then ignited to form a flame. During the combustion of the gas, through the buoyancy and entrainment effects, the surrounding environment will supply air to the flame (this air is called secondary air), thereby assisting the combustion of the gas. It can be seen from this that the amount of primary air and the amount of secondary air are the core factors to ensure the full combustion of the ejected gas. However, the amount of primary air is affected by the structure and working conditions, and the replenishment of secondary air depends on the buoyancy and entrainment effects, which is a passive replenishment and has high requirements for the size of the components. Therefore, the gas mostly burns in a state of low oxygen combustion and is not fully burned only by entrained air and entrained air from the surrounding environment. To solve this problem, the present application improves the burner 100, at least to a certain extent, to improve the combustion degree of the gas, thereby being beneficial to the improvement of the thermal efficiency of the gas stove.

[0049] Specifically, the burner 100 includes a first burner port 1310 and a second burner port 1410. The second burner port 1410 is used for the ejected entrained air and gas, that is, the entrained air and the gas enter the interior of the burner 100, and then are ejected from the interior of the burner 100 through the second burner port 1410 and are ignited to form a flame. Similar to the above description, the gas supply can come from canned liquefied gas or pipeline natural gas. The gas stove includes a valve body. After the valve body is opened, the gas is transmitted along the gas pipeline. The gas flows through the valve body and is ejected through a nozzle. The gas ejected from the nozzle is sprayed into the interior of the burner 100. During the process of the gas being sprayed into the interior of the burner 100, the entrainment of air is synchronously achieved, so that the entrained air follows the gas into the interior of the burner 100, and then the entrained air and the gas are ejected from the second burner port 1410.

[0050] The first burner orifice 1310 is used for the blast air and the gas to be ejected. That is, the blast air and the gas enter the interior of the burner 100, and then are ejected from the interior of the burner 100 through the first burner orifice 1310 and are ignited to form a flame. Similar to the description above, the gas supply can come from bottled liquefied gas or pipeline natural gas. The gas stove includes a valve body. After the valve body is opened, the gas is transmitted along the gas pipeline. The gas flows through the valve body and is ejected through the nozzle. The gas ejected from the nozzle is sprayed into the interior of the burner 100. During this process, blast air is provided. The blast air is generated by a fluid machine, for example, the blast air is provided by forced blowing of a blower 4000. The blast air enters the interior of the burner 100 and mixes with the gas (the blast air is primary air), and then is ejected from the first burner orifice 1310 together with the gas. Compared with entrained air, the blast air can provide enough oxygen, so that the gas ejected from the first burner orifice 1310 is in a state of rich-oxygen combustion, thus enabling the gas ejected from the first burner orifice 1310 to burn sufficiently (the flame generated by the first burner orifice 1310 can still entrain secondary air from the surrounding environment to participate in combustion).

[0051] The gas ejected from the second burner orifice 1410 is not sufficient to burn sufficiently only by entrained air and entraining the surrounding ambient air. Since the blast air is ejected from the first burner orifice 1310, it can provide enough oxygen, so that in addition to participating in the combustion of the gas ejected from the first burner orifice 1310, the excess oxygen in the blast air can also be supplemented into the gas ejected from the second burner orifice 1410 to assist the combustion of the gas ejected from the second burner orifice 1410. Compared with supplementing secondary air from the surrounding environment by entrainment, the excess oxygen provided by the blast air ejected from the first burner orifice 1310 is more actively supplemented into the gas ejected from the second burner orifice 1410, enabling the gas ejected from the second burner orifice to burn sufficiently (the flame generated by the second burner orifice 1410 can still entrain secondary air from the surrounding environment to participate in combustion).

[0052] Thus, through the above solution, the gas ejected from the first burner orifice 1310 and the second burner orifice 1410 burns sufficiently, with high combustion efficiency, which is beneficial to improving the thermal efficiency of the gas stove. It can be understood that the sufficient combustion mentioned in this article is relative to the combustion state when relying only on entrained air and entraining the surrounding ambient air (that is, relatively more sufficient).

[0053] In some embodiments, the flame generated by the second burner orifice 1410 is suitable for stabilizing the flame of the first burner orifice 1410. Specifically, the first burner orifice 1310 ejects blast air and fuel gas. The inventors have found that although sufficient combustion of the fuel gas can be achieved through the blast air, due to the effect of the blast air, the gas flow velocity ejected from the first burner orifice 1310 is relatively large, and the velocity of the fuel gas leaving the first burner orifice 1310 is greater than the combustion velocity of the fuel gas, which easily causes a flame lift phenomenon. Since the second burner orifice 1410 ejects entrained air and fuel gas, and the entrained air is naturally entrained by ejecting the fuel gas through a nozzle and does not need to be generated based on a fluid machine, the velocity of the fuel gas leaving the second burner orifice 1410 is not much different from the combustion velocity of the fuel gas, enabling stable combustion, that is, the flame state formed by the second burner orifice 1410 is stable. Since the flame formed by the second burner orifice 1410 is more stable, the flame generated by the second burner orifice 1410 can be used to stabilize the flame of the first burner orifice 1310.

[0054] That is to say, in addition to heating the cookware, the flame formed by the second burner orifice 1410 also functions as a flame stabilizing hole / flame stabilizing groove. Generally speaking, since the second burner orifice 1410 ejects entrained air and fuel gas, the fuel gas ejected from the second burner orifice 1410 has a more stable combustion state. By adjusting the position, angle or distance between the second burner orifice 1410 and the first burner orifice 1310, etc., the flame formed by the second burner orifice 1410 ignites the fuel gas ejected from the first burner orifice 1310 (for example, the flame formed by the second burner orifice 1410 heats the root of the fuel gas ejected from the first burner orifice 1310 to ignite the fuel gas ejected from the first burner orifice 1310). When the fuel gas quickly leaves the first burner orifice 1310, it is ignited by the flame formed by the second burner orifice 1410, so that the fuel gas quickly leaving the first burner orifice 1310 burns at the first burner orifice 1310, thereby suppressing the occurrence of the flame lift phenomenon at the first burner orifice 1310 and playing a role in stabilizing the flame of the first burner orifice 1310, and further improving the combustion efficiency.

[0055] Combined with Figure 1 、 Figure 2 、 Figure 9 and Figure 10As shown, in some embodiments, the second burner 1410 is closer to the center of the burner 100 than the first burner 1310, and the center of the burner 100 refers to the center of the ignition range of the burner 100, that is, when observing the burner 100 from top to bottom, the first burner 1310 is closer to the outside than the second burner 1410, and the second burner 1410 is closer to the inside than the first burner 1310 (the minimum distance between the first burner 1310 and the center of the burner 100 is greater than the minimum distance between the second burner 1410 and the center of the burner 100). In some cases, the second burner 1410 is closer to the center of the burner 100 than the first burner 1310, and the second burner 1410 can be just in the center of the burner 100. It can be understood that the orientation in this article is based on the installation environment of the gas stove, and the side of the gas stove close to the ground is the lower (bottom), and the side away from the ground is the upper (top).

[0056] Generally speaking, when a gas stove is adjusting the firepower, for example, when the firepower is adjusted from high to low, the flame is gradually extinguished from the outside to the inside. In the present embodiment, the second burner 1410 is designed to be located closer to the inside than the first burner 1310. When the firepower is adjusted from high to low, the flame of the first burner 1310 is extinguished before the second burner 1410. That is, when the gas supply to the first burner 1310 is interrupted, the gas supply to the second burner 1410 is still maintained. At this time, blast air can still be introduced, and the blast air is ejected from the first burner 1310 and supplemented to the gas ejected from the second burner 1410, so that the gas ejected from the second burner 1410 can also be fully burned in this case.

[0057] In addition, when the flame formed by the first burner 1310 and the second burner 1410 heats the cooker, the flame will spread outward due to the obstruction of the cooker. When the first burner 1310 is closer to the outside than the second burner 1410, the flame formed by the second burner 1410 will spread outward and will be more likely to come into contact with the gas ejected from the first burner 1310, thereby igniting the gas ejected from the first burner 1310, further improving the flame stabilizing effect on the first burner 1310.

[0058] Combination Figures 1 to 8 As shown, in some embodiments, the burner 100 includes an annular wall 1500, which surrounds the center of the burner 100. The annular wall 1500 is gradually expanded from bottom to top and surrounds a first space 1510. The first flame port 1310 is arranged on the annular wall 1500, and the second flame port 1410 is also arranged on the annular wall 1500.

[0059] Specifically, a first space 1510 is surrounded by an annular wall surface 1500. The first burner opening 1310 and the second burner opening 1410 are provided on the annular wall surface 1500. Therefore, the first burner opening 1310 communicates with the first space 1510, and the second burner opening 1410 communicates with the first space 1510. The heat generated when the gas ejected from the first burner opening 1310 and the gas ejected from the second burner opening 1410 burn will accumulate in the first space 1510, avoiding the rapid dissipation of heat, which is beneficial to improving the heating effect on the cooking utensil. Moreover, the accumulation of high temperature is beneficial to the conversion of carbon monoxide, further improving the combustion efficiency. Since the annular wall surface 1500 is gradually expanding from bottom to top, the first space 1510 surrounded thereby gradually expands from bottom to top, which can increase the range of the first space 1510 and make the heat radiate upward (towards the cooking utensil), further improving the heating effect on the cooking utensil.

[0060] The "annular" in the annular wall surface 1500 can also be called "ring-shaped", which can be circular or non-circular (such as square-shaped), and is not limited in this embodiment. Since the first burner opening 1310 is farther from the center of the burner 100 than the second burner opening 1410, and the annular wall surface 1500 is gradually expanding from bottom to top, on the annular wall surface 1500, the position where the first burner opening 1310 is located is higher, and the position where the second burner opening 1410 is located is lower. The flame formed by the second burner opening 1410 will generate upward. When the first burner opening 1310 is at a higher position relative to the second burner opening 1410, the flame of the second burner opening 1410 is more likely to contact the gas ejected from the first burner opening 1310 and thus be ignited, further suppressing the occurrence of the flame detachment phenomenon of the first burner opening 1310.

[0061] Combined Figure 3 、 Figure 4 、 Figure 7 and Figure 8 As shown in, in some embodiments, the first burner opening 1310 is higher than the second burner opening 1410. Along the axial direction of the burner 100, the minimum distance between the second burner opening 1410 and the first burner opening 1310 is not greater than 15 mm. Along the radial direction of the burner 100, the minimum distance between the second burner opening 1410 and the first burner opening 1310 is not greater than 10 mm.

[0062] Specifically, the first burner orifice 1310 is higher than the second burner orifice 1410, that is, the lowest point of the first burner orifice 1310 is higher than the highest point of the second burner orifice 1410. With the gas stove installed in the use environment as a reference, the gas stove is generally in a horizontal installation state at this time. The axial direction of the burner 100 is the up-and-down direction, and the radial direction is the direction passing through the center of the burner 100 and perpendicular to the axial direction. In this embodiment, along the axial direction of the burner 100, the minimum distance between the second burner orifice 1410 and the first burner orifice 1310 is L1, and L1 is not greater than 15 mm. For example, L1 is 15 mm, 12 mm, 9 mm, 5 mm, 2 mm or 1 mm. Along the radial direction of the burner 100, the minimum distance between the second burner orifice 1410 and the first burner orifice 1310 is L2, and L2 is not greater than 10 mm. For example, L2 is 10 mm, 8 mm, 6 mm, 4 mm, 2 mm or 1 mm. After a large number of tests by the inventor, when L1 and L2 meet the above conditions, the flame stabilizing effect of the second burner orifice 1410 on the first burner orifice 1310 is better, reducing the influence of the shapes and sizes of the second burner orifice 1410 and the first burner orifice 1310, and meeting more styling designs of the burner 100.

[0063] Combined with Figure 9 and Figure 10 As shown, in some embodiments, the burner 100 includes a plurality of first burner orifices 1310. The term "plurality" means two or more, that is, the number of the first burner orifices 1310 is at least two. The plurality of first burner orifices 1310 are arranged in an annular and alternating manner. For example, the plurality of first burner orifices 1310 are arranged in an annular and alternating manner along the circumferential direction of the burner 100. The circumferential direction can be understood as the direction surrounding the center of the burner 100. The plurality of first burner orifices 1310 eject gas to generate flames, which can achieve large-range heating of the cooking utensil. In addition to the above situation, it can also be that, combined with Figure 13 and Figure 14 As shown, in some embodiments, the first burner orifice 1310 is in the shape of an annular slit. The annular-slit-shaped first burner orifice 1310 can also achieve large-range heating of the cooking utensil. And when the first burner orifice 1310 is designed in the shape of an annular slit, the first burner orifice 1310 is continuous along the circumferential direction of the burner 100. In this way, the excess oxygen in the gas ejected from the first burner orifice 1310 can increase the contact with the gas ejected from the second burner orifice 1410, improving the oxygen supply effect on the gas ejected from the second burner orifice 1410.

[0064] Combined with Figure 9 and Figure 10As shown, in some embodiments, the burner 100 includes a plurality of second burner ports 1410. The term "plurality" means two or more, that is, the number of the second burner ports 1410 is at least two. The plurality of second burner ports 1410 are arranged in an annular and alternating manner. For example, the plurality of second burner ports 1410 are arranged in an annular and alternating manner along the circumferential direction of the burner 100. The circumferential direction can be understood as the direction around the center of the burner 100. The plurality of second burner ports 1410 eject gas to generate flames, enabling large-range heating of the cooking utensil. In addition to the above situation, it can also be that, in some embodiments, the second burner port 1410 is in the shape of an annular slit, and the second burner port 1410 in the shape of an annular slit can also achieve large-range heating of the cooking utensil.

[0065] Since the second burner port 1410 is closer to the center of the burner 100 than the first burner port 1310, when there are a plurality of first burner ports 1310, the plurality of first burner ports 1310 surround the second burner port 1410 (at this time, the second burner port 1410 can be multiple or in the shape of an annular slit). When the first burner port 1310 is in the shape of an annular slit, the first burner port 1310 surrounds the second burner port 1410 (at this time, the second burner port 1410 can be multiple or in the shape of an annular slit). For example Figure 9 and Figure 10 As shown in the burner 100, the plurality of first burner ports 1310 surround the plurality of second burner ports 1410. The arrangement of the plurality of first burner ports 1310 forms a first circular ring, and the arrangement of the plurality of second burner ports 1410 forms a second circular ring, as Figure 13 and Figure 14 As shown in the burner 100, the first burner port 1310 is in the shape of an annular slit to surround the plurality of second burner ports 1410.

[0066] On the premise that the number of the first burner ports 1310 is multiple and the number of the second burner ports 1410 is multiple, in combination with Figure 2 、 Figure 7 、 Figure 8 、 Figure 11 and Figure 12 As shown, the burner 100 includes a first channel 1300 and a second channel 1400. The end of the first channel 1300 constitutes the first burner port 1310, and the end of the second channel 1400 constitutes the second burner port 1410. Since the number of the first burner ports 1310 and the number of the second burner ports 1410 are multiple, it means that the number of the first channels 1300 and the number of the second channels 1400 are also multiple. For example, the burner 100 includes a burner cap 1000. The burner cap 1000 is provided with the first channel 1300 and the second channel 1400, thereby forming the first burner port 1310 and the second burner port 1410. The blast air and the gas are transmitted along the first channel 1300 and finally ejected from the first burner port 1310. The induced air and the gas are transmitted along the second channel 1400 and finally ejected from the second burner port 1410.

[0067] In this embodiment, a plurality of first channels 1300 are arranged in a rotational pattern along a first direction, and a plurality of second channels 1400 are arranged in a rotational pattern along a second direction, where the first direction is opposite to the second direction. For example Figure 2 , Figure 11 and Figure 12 as shown in the burner 100, a plurality of first channels 1300 are arranged in a clockwise rotational pattern. The so-called clockwise rotational pattern means that the gas ejected from a plurality of first flame ports 1310 as a whole instantaneously flows in a clockwise direction. A plurality of second channels 1400 are arranged in a counterclockwise rotational pattern. The so-called counterclockwise rotational pattern means that the gas ejected from a plurality of second flame ports 1410 as a whole instantaneously flows in a counterclockwise direction. Due to the different rotational arrangement directions of the plurality of first channels 1300 and the plurality of second channels 1400, the directions of the gas ejected from the first flame ports 1310 and the second flame ports 1410 are different, which is beneficial to the mixing of the gas and then enhances the effect of complete combustion.

[0068] Combined with Figures 5 to 7 and Figure 15 as shown, in some embodiments, the burner 100 includes a burner head 2000 and a burner cap 1000. The burner head 2000 is provided with a first cavity 2100 and a second cavity 2200. The burner cap 1000 is disposed on the burner head 2000 to cover the first cavity 2100 and the second cavity 2200. The burner cap 1000 is provided with a first flame port 1310 and a second flame port 1410. The first flame port 1310 communicates with the first cavity 2100, and the second flame port 1410 communicates with the second cavity 2200. The first cavity 2100 is used to receive blast air and gas, and the second cavity 2200 is used to receive induced air and gas.

[0069] Specifically, the burner head 2000 can be integrally formed or assembled by connecting separate components. The first cavity 2100 surrounds the second cavity 2200. The blast air and gas are introduced into the first cavity 2100 to be mixed and then ejected from the first flame port 1310 and ignited to form a flame. The induced air and gas are introduced into the second cavity 2200 to be mixed and then ejected from the second flame port 1410 and ignited to form a flame.

[0070] Furthermore, combined with Figure 8As shown, the burner cap 1000 includes a first burner cap 1100 and a second burner cap 1200. The first burner cap 1100 and the second burner cap 1200 enclose a first burner opening 1310. The second burner cap 1200 is provided with a second burner opening 1410, thus reducing the manufacturing difficulty of the burner cap 1000. For example, the first burner cap 1100 and the second burner cap 1200 are manufactured separately. The second burner cap 1200 is placed on the stove head 2000 under the action of gravity to cover the second cavity 2200. The first burner cap 1100 is placed on the stove head 2000 under the action of gravity, surrounds and overlaps the second burner cap 1200, cooperates with the second burner cap 1200 to enclose the first burner opening 1310 and cover the first cavity 2100. The inner side of the first burner cap 1100 is connected to the inner side of the second burner cap 1200 to form the above-mentioned annular wall surface 1500, which is convenient for cleaning.

[0071] Combined with Figure 1 、 Figure 5 and Figure 6 As shown, in some embodiments, the burner 100 includes a first ejector tube 3100 and a second ejector tube 3200. The first ejector tube 3100 is connected to the stove head 2000 so that the first cavity 2100 is communicated. The second ejector tube 3200 is connected to the stove head 2000 so that it is communicated with the second cavity 2200. The air inlet end 3110 of the first ejector tube is matched with the nozzle and is used for receiving the blast air. The air inlet end 3210 of the second ejector tube 3200 is matched with the nozzle.

[0072] Specifically, the first ejector tube 3100 has a Venturi structure. The air inlet end 3110 of the first ejector tube is matched with the nozzle, that is, the nozzle sprays gas towards the air inlet end 3110 of the first ejector tube. At the same time, the blast air enters through the air inlet end 3110 of the first ejector tube, for example, realized by forced blast of the blower 4000. The blast air and the gas are transported to the first cavity 2100 for mixing and finally sprayed out from the first burner opening 1310. It can be understood that the blower 4000 can be fixedly connected to the first ejector tube 3100, which is more convenient for the cooperation between the blower 4000 and the air inlet end 3110 of the first ejector tube. The second ejector tube 3200 has a Venturi structure. The air inlet end 3210 of the second ejector tube 3200 is matched with the nozzle, that is, the nozzle sprays gas towards the air inlet end 3210 of the second ejector tube. At the same time, a negative pressure is formed on the surrounding environment to eject air. The ejected air and the gas are transported to the second cavity 2200 for mixing and finally sprayed out from the second burner opening 1410.

[0073] The second aspect of the present application discloses a gas stove. Combined with Figures 1 to 15As shown in the figure, the gas stove includes the above burner 100. The burner 100 includes a first burner port 1310 and a second burner port 1410. The first burner port 1310 is used for the blast air and gas to be ejected, and the second burner port 1410 is used for the induced air and gas to be ejected. And the second burner port 1410 is closer to the center of the burner 100 relative to the first burner port 1310. In this embodiment, the first burner port 1310 ejects the blast air and gas. The blast air provides sufficient oxygen to make the gas ejected from the first burner port 1310 burn fully. And the blast air can generate excess oxygen to assist the combustion of the gas ejected from the second burner port 1410. In this way, the gas ejected from the second burner port 1410 can also burn fully under the action of the induced air and the excess oxygen provided by the blast air. By such a setting, finally the gas ejected from the first burner port 1310 and the second burner port 1410 burns fully, with high combustion efficiency, which is beneficial to the improvement of the thermal efficiency of the gas stove. It can be understood that the burner 100 of the gas stove in this embodiment adopts the technical solution of the above embodiment, so it has at least the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0074] In some embodiments, the gas stove includes a valve body (not shown in the figure). The valve body is used to adjust the gas volume. When the gas supply to the first burner port 1310 is interrupted in the valve body, the valve body can maintain the gas supply to the second burner port 1410. And at this time, the blower 4000 is still in the working state.

[0075] Specifically, the valve body is a device for adjusting the gas flow rate. The inlet of the valve body is connected to the gas pipeline, and the outlet of the valve body is connected to the nozzle. By the adjustment of the valve body, the gas volume finally leading to the first burner port 1310 and the second burner port 1410 is adjusted. The specific structure of the valve body can refer to the related technology, which will not be elaborated here in detail. When the valve body is adjusted until the gas supply to the first burner port 1310 is interrupted, the gas supply to the second burner port 1410 can still be maintained (the fire power adjustment changes from large to small). And at this time, the blower 4000 is also in the working state. In this way, the air (blast air) forcibly conveyed by the blower 4000 is ejected through the first burner port 1310 and supplemented into the gas ejected from the second burner port 1410, ensuring that the gas ejected from the second burner port 1410 can also burn fully when the gas is not ejected through the first burner port 1310.

[0076] It can be understood that the blower 4000 can be started synchronously when the gas stove is ignited. No matter how the valve body is adjusted, the blower 4000 still remains in the running state until the gas stove is extinguished and then the blower 4000 is turned off. Of course, other control logics can also be adopted, which will not be elaborated one by one here.

[0077] The third aspect of the present application discloses an integrated appliance, which includes the gas stove of the above embodiments. The so-called integrated appliance is a device that integrates a gas stove and the functions of another traditional appliance. For example, at least one of a microwave oven, an oven, a steamer, and a range hood can be integrated with the gas stove to form an integrated appliance. Of course, the integrated appliance is not limited to the appliances listed above. As long as it can achieve more functions when integrated with the gas stove compared to a single gas stove, it can be regarded as an integrated appliance. It can be understood that the gas stove of the integrated appliance in this embodiment adopts the technical solution of the above embodiment, so it has at least the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0078] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made under the concept of the present application by using the content of the specification and drawings of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A burner (100), characterized in that: The burner (100) comprises: A first burner (1310) adapted to allow fuel gas and blast air to be ejected; and The second burner (1410) is suitable for spraying out fuel gas and induced air, and the second burner (1410) is closer to the center of the burner (100) relative to the first burner (1310).

2. The burner (100) according to claim 1, characterized in that: The flame generated by the second burner (1410) is suitable for stabilizing the flame of the first burner (1310).

3. The burner (100) according to claim 1 or 2, characterized in that: The burner (100) comprises an annular wall (1500) surrounding the center of the burner (100), the annular wall (1500) gradually expands from bottom to top and surrounds a first space (1510), and the first burner (1310) and the second burner (1410) are arranged on the annular wall (1500).

4. The burner (100) according to claim 3, characterized in that: The first burner (1310) is higher than the second burner (1410), and the minimum distance between the first burner (1310) and the second burner (1410) along the axial direction of the burner (100) is no more than 15 mm, and the minimum distance between the first burner (1310) and the second burner (1410) along the radial direction of the burner (100) is no more than 10 mm.

5. The burner (100) according to claim 1, characterized in that: The burner (100) comprises a plurality of the first burners (1310), wherein the plurality of the first burners (1310) are alternately arranged in a ring shape and surround the second burner (1410); And / or, the burner (100) comprises a plurality of the second burners (1410), and the plurality of the second burners (1410) are arranged alternately in a ring shape.

6. The burner (100) according to claim 5, characterized in that: The burner (100) comprises a first channel (1300) and a second channel (1400), wherein the end of the first channel (1300) constitutes the first flame port (1310), and the end of the second channel (1400) constitutes the second flame port (1410), and a plurality of the first channels (1300) are arranged in a rotational manner along a first direction, and a plurality of the second channels (1400) are arranged in a rotational manner along a second direction opposite to the first direction.

7. The burner (100) according to claim 1, characterized in that: The first burner (1310) is in the shape of an annular seam and surrounds the second burner (1410); And / or, the second burner (1410) is in the shape of an annular seam.

8. The burner (100) according to claim 1, characterized in that: The burner (100) comprises a burner head (2000) and a fire cover (1000) arranged on the burner head (2000); the burner head (2000) is provided with a first cavity (2100) and a second cavity (2200); the fire cover (1000) is provided with the first burner port (1310) and the second burner port (1410); the first cavity (2100) is suitable for receiving fuel gas and blast air and is in communication with the first burner port (1310); the second cavity (2200) is suitable for receiving fuel gas and induced air and is in communication with the second burner port (1410).

9. The burner (100) according to claim 8, characterized in that: The fire cover (1000) comprises a first fire cover (1100) and a second fire cover (1200), wherein the first fire cover (1100) surrounds the second fire cover (1200) and the first fire port (1310) is provided between the first fire cover (1100) and the second fire cover (1200), and the second fire cover (1200) is provided with the second fire port (1410).

10. The burner (100) according to claim 8, characterized in that The burner (100) comprises a first ejector tube (3100) and a second ejector tube (3200); the first ejector tube (3100) is connected to the burner head (2000) and communicated with the first cavity (2100); an air inlet end (3110) of the first ejector tube (3100) is suitable for receiving fuel gas and blast air; the second ejector tube (3200) is connected to the burner head (2000) and communicated with the second cavity (2200); an air inlet end (3210) of the second ejector tube (3200) is suitable for receiving fuel gas and ejection air.

11. A gas stove, characterized in that: The gas stove comprises the burner (100) according to any one of claims 1 to 10.

12. The gas stove according to claim 11, characterized in that: The gas stove comprises a valve body, which is suitable for adjusting the amount of gas. When the valve body interrupts the gas supply to the first burner (1310), the valve body is suitable for maintaining the gas supply to the second burner (1410), and the fan (4000) of the gas stove is in working state to provide blowing air.

13. An integrated electrical appliance, characterized in that: The integrated electrical appliance comprises the gas stove according to claim 11 or 12.

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