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 outlet and a second fire outlet, the first fire outlet is far away from the center of the burner relative to the second fire outlet, one of the first fire outlet and the second fire outlet is suitable for spraying out fuel gas and blast air, and the other one of the first fire outlet and the second fire outlet is suitable for spraying out fuel gas and injection air. According to the technical scheme, one of the first fire outlet and the second fire outlet can be used for spraying out fuel gas and blast air, and the blast air provides sufficient oxygen so that the fuel gas sprayed out of the first fire outlet and the second fire outlet can be fully combusted; and the blast air can generate redundant oxygen to assist the combustion of the fuel gas ejected from the other one of the first fire outlet and the second fire outlet, so that the fuel gas ejected from the other one of the first fire outlet and the second fire outlet can be fully combusted under the action of the redundant oxygen provided by the ejection air and the blast air. And the 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 speaking, the primary air is mixed with the gas through an ejector action. However, the amount of primary air is affected by the structure and working conditions, and the supplement of secondary air depends on buoyancy and entrainment, which requires relatively high dimensional requirements for 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 proposes a burner.

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

[0005] A first fire outlet; and

[0006] A second fire outlet, the first fire outlet is farther from the center of the burner than the second fire outlet, and one of the first fire outlet and the second fire outlet is adapted to eject gas and blast air, and the other of the first fire outlet and the second fire outlet is adapted to eject gas and entrained air.

[0007] In this technical solution, one of the first fire outlet and the second fire outlet can eject gas and blast air. The blast air provides sufficient oxygen to enable the gas ejected from the aforementioned one to burn fully, and the blast air can generate excess oxygen to assist the combustion of the gas ejected from the other of the first fire outlet and the second fire outlet. In this way, the gas ejected from the aforementioned other can also burn fully under the action of the entrained air and the excess oxygen provided by the blast air. Through such a setting, finally, the gas ejected from the first fire outlet and the second fire outlet burns fully, with high combustion efficiency, which is beneficial to the improvement of the thermal efficiency of the gas stove.

[0008] In some embodiments of this application, the flame generated by the other of the first fire outlet and the second fire outlet is adapted to stabilize the flame of the one of the first fire outlet and the second fire outlet.

[0009] In some embodiments of this application, the burner includes a first air outlet passage, the end of the first air outlet passage forms the first fire outlet, and at least one first corner is provided upstream of the first fire outlet in the first air outlet passage.

[0010] In some embodiments of the present application, the first gas outlet channel includes a first upstream flow section, a first middle flow section, and a first downstream flow section. The end of the first downstream flow section constitutes the first flame outlet. The first upstream flow section and the first middle flow section intersect to form the first corner, and the first middle flow section and the first downstream flow section intersect to form the first corner.

[0011] In some embodiments of the present application, the first downstream flow section inclines away from the center of the burner from the first middle flow section.

[0012] In some embodiments of the present application, the burner includes a second gas outlet channel. The end of the second gas outlet channel constitutes the second flame outlet, and at least one second corner is provided upstream of the second flame outlet in the second gas outlet channel.

[0013] In some embodiments of the present application, the second gas outlet channel includes a second upstream flow section and a second downstream flow section. The end of the second downstream flow section constitutes the second flame outlet, and the second upstream flow section and the second downstream flow section intersect to form the second corner.

[0014] In some embodiments of the present application, the second downstream flow section inclines away from the center of the burner from the second upstream flow section.

[0015] In some embodiments of the present application, the first flame outlet is in an annular slit shape and surrounds the second flame outlet;

[0016] And / or, the second flame outlet is in an annular slit shape.

[0017] In some embodiments of the present application, the burner includes a plurality of the first flame outlets. The plurality of first flame outlets are arranged annularly and alternately and surround the second flame outlet;

[0018] And / or, the burner includes a plurality of the second flame outlets. The plurality of second flame outlets are arranged annularly and alternately.

[0019] In some embodiments of the present application, the burner includes a burner head and a burner cap provided on the burner head. The burner head is provided with a first cavity and a second cavity. The burner cap includes a first burner cap, a second burner cap, and a third burner cap. The first burner cap surrounds the second burner cap, and a first flame outlet communicating with the first cavity is provided between the first burner cap and the second burner cap. The second burner cap surrounds the third burner cap, and a second flame outlet communicating with the second cavity is provided between the second burner cap and the third burner cap.

[0020] In some embodiments of the present application, a first gas outlet channel is provided between the first burner cap and the second burner cap, and a second gas outlet channel is provided between the second burner cap and the third burner cap.

[0021] In some embodiments of the present application, the burner head includes a first annular wall, a second annular wall, and a third annular wall. The first annular wall surrounds the second annular wall, and a first cavity is provided between the first annular wall and the second annular wall. The second annular wall surrounds the third annular wall, and a second cavity is provided between the second annular wall and the third annular wall. The first burner cap is annular and placed on the first annular wall. The second burner cap is annular and placed on the second annular wall. The third burner cap is annular and placed on the third annular wall.

[0022] 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 communicates with the first cavity. The second ejector tube is connected to the burner head and communicates with the second cavity. One of the gas inlet ends of the first ejector tube and the second ejector tube is adapted to receive gas and blast air, and the other of the gas inlet ends of the first ejector tube and the second ejector tube is adapted to receive gas and entrained air.

[0023] In some embodiments of the present application, the burner includes a blower, and the blower is adapted to provide blast air. The blower is fixedly connected to the first ejector tube or the second ejector tube.

[0024] A second aspect of the present application discloses a gas stove, and the gas stove includes the above-mentioned burner.

[0025] In some embodiments of the present application, the gas stove includes a valve body, and the valve body is adapted to adjust the gas volume. When the gas supply to one of the first fire outlet and the second fire outlet is interrupted in the valve body, the valve body is adapted to maintain the gas supply to the other of the first fire outlet and the second fire outlet, and the blower of the gas stove is in a working state to provide blast air.

[0026] A third aspect of the present application discloses an integrated appliance, and the integrated appliance includes the above-mentioned gas stove.

[0027] Other advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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 use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other designs can be obtained based on the structures shown in these drawings without creative efforts.

[0029] Figure 1Schematic diagrams of burners in some embodiments (the first flame outlet supplies the blown air and gas for ejection, and the second flame outlet supplies the entrained air and gas for ejection);

[0030] Figure 2 is Figure 1 the enlarged view marked as A in;

[0031] Figure 3 Schematic diagrams of burners in some embodiments (the perspective is different from Figure 1 , the first flame outlet supplies the blown air and gas for ejection, and the second flame outlet supplies the entrained air and gas for ejection);

[0032] Figure 4 is Figure 3 the enlarged view marked as B in;

[0033] Figure 5 is Figure 1 the partial structural cross-sectional view of the burner shown;

[0034] Figure 6 Schematic diagrams of burners in some embodiments (the first flame outlet supplies the entrained air and gas for ejection, and the second flame outlet supplies the blown air and gas for ejection);

[0035] Figure 7 is Figure 6 the partial structural cross-sectional view of the burner shown;

[0036] Figure 8 Exploded view of the burner head and burner cap in some embodiments;

[0037] Figure 9 Cross-sectional view of the assembled structure of the burner head and burner cap in some embodiments;

[0038] Figure 10 Cross-sectional view of the assembled structure of the burner head and burner cap in some embodiments (the cross-section is different from Figure 9 );

[0039] Figure 11 is Figure 10 the enlarged view marked as C in;

[0040] Figure 12 Cross-sectional view of the assembled structure of the burner head and burner cap in some embodiments (the cross-section is different from Figure 9 , and the perspective is different from Figure 10 );

[0041] Figure 13 is Figure 12 the enlarged view marked as D in;

[0042] Figure 14 is Figure 12 the enlarged view marked as D in (showing the air flow direction).

[0043] Description of the reference numerals in the drawings:

[0044] Burner 100, burner cap 1000, first burner cap 1100, second burner cap 1200, third burner cap 1300, first gas outlet passage 1500, first upstream flow section 1510, first middle flow section 1520, first downstream flow section 1530, first flame outlet 1531, first corner 1540, second gas outlet passage 1600, second upstream flow section 1610, second downstream flow section 1620, second flame outlet 1621, second corner 1630, burner head 2000, first annular wall 2100, second annular wall 2200, third annular wall 2300, first cavity 2410, second cavity 2420, first ejector tube 3100, intake end of the first ejector tube 3110, second ejector tube 3200, intake end of the second ejector tube 3210, fan 4000.

[0045] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0046] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0047] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present 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 the specific posture changes, the directional indications will also change accordingly.

[0048] In the present application, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should 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 limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0049] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may 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 results in contradictions 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.

[0050] In the related art, a gas stove includes a valve body. After the valve body is opened, the gas of bottled 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 may be made to the related art. Generally, based on the Venturi principle, a negative pressure is formed in the surrounding environment during the process of the gas being sprayed into the interior of the burner, so that the air in the surrounding environment is synchronously entrained into the interior of the burner along with the spraying of the gas (this part of the air that enters the interior of the burner through the entrainment effect 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 that the quantity of primary air and the quantity of secondary air are the core factors for ensuring the full combustion of the ejected gas. However, the quantity of primary air is affected by the structure and working conditions, and the supplement of secondary air depends on the buoyancy and entrainment effects, which is a passive supplement and has relatively high requirements for the dimensions of the components. Therefore, when the gas burns only by entrained air and entraining the air in the surrounding environment, it is mostly in a state of lean-oxygen combustion and the combustion is incomplete. To solve this problem, this application improves the burner to at least to some extent enhance the combustion degree of the gas, thereby being beneficial to the improvement of the thermal efficiency of the gas stove.

[0051] The first aspect of this application discloses a burner 100, in combination with Figures 1 to 7As shown, the burner 100 includes a first flame outlet 1531 and a second flame outlet 1621. The first flame outlet 1531 is farther from the center of the burner than the second flame outlet 1621. One of the first flame outlet 1531 and the second flame outlet 1621 is used for the ejection of blast air and gas, and the other is used for the ejection of entrained air and gas. In the technical solution herein, one of the first flame outlet 1531 and the second flame outlet 1621 can eject gas and blast air. The blast air provides sufficient oxygen to fully combust the gas ejected from the aforesaid one, and the blast air can generate excess oxygen to assist in the combustion of the gas ejected from the other of the first flame outlet 1531 and the second flame outlet 1621. In this way, the gas ejected from the aforesaid other can also be fully combusted under the action of the entrained air and the excess oxygen provided by the blast air. Through such an arrangement, finally, the gas ejected from the first flame outlet 1531 and the second flame outlet 1621 is fully combusted, with high combustion efficiency, which is beneficial to the improvement of the thermal efficiency of the gas stove.

[0052] Specifically, the burner 100 includes a first flame outlet 1531 and a second flame outlet 1621. One of the first flame outlet 1531 and the second flame outlet 1621 is used for the ejection of blast air and gas, while the other is used for the ejection of entrained air and gas, including two schemes. The first scheme ( Figures 1 to 5 as shown) is that the first flame outlet 1531 ejects blast air and gas, and the second flame outlet 1621 ejects entrained air and gas. The second scheme ( Figure 6 and Figure 7 as shown) is that the first flame outlet 1531 ejects entrained air and gas, and the second flame outlet 1621 ejects blast air and gas.

[0053] Taking the first flame outlet 1531 being used for ejecting blast air and gas and the second flame outlet 1621 being used for ejecting entrained air and gas as an example for description. The second flame outlet 1621 is used for ejecting entrained air and gas, that is, the entrained air and gas enter the interior of the burner 100, and then are ejected from the interior of the burner 100 through the second flame outlet 1621 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 the process of the gas being sprayed into the interior of the burner 100, the entrainment of air is synchronously realized. In this way, the entrained air follows the gas into the interior of the burner 100, and then the entrained air and gas are ejected from the second flame outlet 1621.

[0054] The first flame outlet 1531 is used for the ejection of blast air and gas, that is, the blast air and gas enter the interior of the burner 100, and then are ejected from the interior of the burner 100 through the first flame outlet 1531 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 a 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 blast 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 flame outlet 1531 together with the gas. Compared with entrained air, the blast air can provide enough oxygen, so that the gas ejected from the first flame outlet 1531 is in a state of rich-oxygen combustion, thus enabling the gas ejected from the first flame outlet 1531 to burn sufficiently (the flame generated by the first flame outlet 1531 can still entrain secondary air from the surrounding environment to participate in combustion).

[0055] The gas ejected from the second flame outlet 1621 is not sufficient to burn sufficiently only by entrained air and entraining air from the surrounding environment. Since the blast air is ejected from the first flame outlet 1531, it can provide enough oxygen, so that in addition to participating in the combustion of the gas ejected from the first flame outlet 1531, the excess oxygen in the blast air can also be supplemented into the gas ejected from the second flame outlet 1621 to assist the combustion of the gas ejected from the second flame outlet 1621. Compared with supplementing secondary air from the surrounding environment by entrainment, the excess oxygen provided by the blast air ejected from the first flame outlet 1531 is more actively supplemented into the gas ejected from the second flame outlet 1621, enabling the gas ejected from the second flame outlet 1621 to burn sufficiently (the flame generated by the second flame outlet 1621 can still entrain secondary air from the surrounding environment to participate in combustion).

[0056] Thus, it can be seen that through the above solution, the gas ejected from the first flame outlet 1531 and the second flame outlet 1621 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 only relying on entrained air and entraining air from the surrounding environment (that is, relatively more sufficient). Similar to the solution "the first flame outlet 1531 is used for ejecting blast air and gas, and the second flame outlet 1621 is used for ejecting entrained air and gas", the solution "the first flame outlet 1531 is used for ejecting entrained air and gas, and the second flame outlet 1621 is used for ejecting blast air and gas" has similar technical effects and will not be repeated here.

[0057] Furthermore, the first flame outlet 1531 is farther from the center of the burner 100 than the second flame outlet 1621. The center of the burner 100 refers to the center of the flame outlet range of the burner 100. That is, when observing the burner 100 from top to bottom, the first flame outlet 1531 is more outward relative to the second flame outlet 1621, and the second flame outlet 1621 is more inward relative to the first flame outlet 1531 (the minimum distance between the first flame outlet 1531 and the center of the burner 100 is greater than the minimum distance between the second flame outlet 1621 and the center of the burner 100). It can be understood that the orientation in this article is based on the installation of the gas stove in the use environment. 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).

[0058] Combined with Figures 1 to 5 shown, taking the first flame outlet 1531 for ejecting blast air and gas and the second flame outlet 1621 for ejecting induced air and gas as an example for illustration. Generally speaking, when the gas stove adjusts the fire power size, for example, when the fire power is adjusted from large to small, the flame gradually goes out from the outside to the inside. Since the first flame outlet 1531 is designed at a position more outward relative to the second flame outlet 1621, when the fire power is adjusted from large to small, the flame of the first flame outlet 1531 goes out before the second flame outlet 1621. That is, when the gas supply to the first flame outlet 1531 is interrupted, the gas supply to the second flame outlet 1621 is still maintained. At this time, blast air can still be introduced, and the blast air is ejected from the first flame outlet 1531 and supplemented into the gas ejected from the second flame outlet 1621, so that the gas ejected from the second flame outlet 1621 can also burn fully in this case.

[0059] Combined with Figure 6 and Figure 7 shown, taking the first flame outlet 1531 for ejecting induced air and gas and the second flame outlet 1621 for ejecting blast air and gas as an example for illustration. Since the first flame outlet 1531 is designed at a position more outward relative to the second flame outlet 1621, and the first flame outlet 1531 is for ejecting induced air and gas, and the second flame outlet 1621 is for ejecting blast air and gas, in addition to the excess oxygen ejected from the second flame outlet 1621 being supplemented into the gas ejected from the first flame outlet 1531, the flame formed by the first flame outlet 1531 is more likely to entrain the air in the surrounding environment, thereby further improving the effect of full combustion.

[0060] In some embodiments, the flame generated by the other of the first flame outlet 1531 and the second flame outlet 1621 is suitable for stabilizing the flame of one of the first flame outlet 1531 and the second flame outlet 1621. "One of them" refers to the object through which the blast air and the fuel gas are ejected, and "the other" refers to the object through which the entrained air and the fuel gas are ejected. For example, if the first flame outlet 1531 ejects the blast air and the fuel gas, and the second flame outlet 1621 ejects the entrained air and the fuel gas, then "one of them" is the first flame outlet 1531, and "the other" is the second flame outlet 1621. Another example, if the first flame outlet 1531 is used to eject the entrained air and the fuel gas, and the second flame outlet 1621 is used to eject the blast air and the fuel gas, then "one of them" is the second flame outlet 1621, and "the other" is the first flame outlet 1531.

[0061] Specifically, taking the example where the first flame outlet 1531 ejects the blast air and the fuel gas, and the second flame outlet 1621 ejects the entrained air and the fuel gas for illustration, it can be understood that the solution "the first flame outlet 1531 is used to eject the entrained air and the fuel gas, and the second flame outlet 1621 is used to eject the blast air and the fuel gas" has similar technical effects and will not be repeated here. The first flame outlet 1531 ejects the blast air and the fuel gas. The inventor found that although the sufficient combustion of the fuel gas can be achieved through the blast air, due to the effect of the blast air, the gas flow rate ejected from the first flame outlet 1531 is relatively large, and the velocity of the fuel gas leaving the first flame outlet 1531 is greater than the combustion velocity of the fuel gas, which is prone to the phenomenon of flame lift-off. Since the second flame outlet 1621 ejects the entrained air and the fuel gas, and the entrained air is naturally entrained by ejecting the fuel gas through the nozzle without the need to be generated based on a fluid machine, the velocity of the fuel gas leaving the second flame outlet 1621 is not much different from the combustion velocity of the fuel gas, and stable combustion can be achieved, that is, the flame state formed by the second flame outlet 1621 is stable. Since the flame formed by the second flame outlet 1621 is more stable, the flame generated by the second flame outlet 1621 can be used to stabilize the flame of the first flame outlet 1531.

[0062] That is to say, in addition to heating the cooking utensil, the flame formed by the second flame outlet 1621 also functions as a flame stabilizing hole / flame stabilizing groove. Generally speaking, since the second flame outlet 1621 supplies the entrained air and gas to be ejected, the gas ejected from the second flame outlet 1621 has a more stable combustion state. By adjusting the position, angle or distance between the second flame outlet 1621 and the first flame outlet 1531, etc., the flame formed by the second flame outlet 1621 ignites the gas ejected from the first flame outlet 1531 (for example, the flame formed by the second flame outlet 1621 heats the root of the gas ejected from the first flame outlet 1531 to ignite the gas ejected from the first flame outlet 1531). When the gas quickly leaves the first flame outlet 1531, it is ignited by the flame formed by the second flame outlet 1621. In this way, the gas that quickly leaves the first flame outlet 1531 burns at the first flame outlet 1531, thereby suppressing the occurrence of the flame lift phenomenon at the first flame outlet 1531 and playing a role in stabilizing the flame at the first flame outlet 1531, and further improving the combustion efficiency. In particular, when the flames formed by the first flame outlet 1531 and the second flame outlet 1621 heat the cooking utensil, due to the obstruction of the cooking utensil, the flames will spread outwards. When the first flame outlet 1531 is more outward relative to the second flame outlet 1621, the flame formed by the second flame outlet 1621 spreading outwards is more likely to contact the gas ejected from the first flame outlet 1531 to ignite the gas ejected from the first flame outlet 1531, further improving the flame stabilizing effect on the first flame outlet 1531.

[0063] Combined with Figures 10 to 13 As shown, in some embodiments, the burner 100 includes a first gas outlet passage 1500. The end of the first gas outlet passage 1500 constitutes the first flame outlet 1531, and at least one first corner 1540 is provided in the first gas outlet passage 1500. The first corner 1540 is provided upstream of the first flame outlet 1531. The gas flowing along the first gas outlet passage 1500 needs to flow through the first corner 1540 before being ejected from the first flame outlet 1531. The setting of the first corner 1540 is beneficial to further uniform mixing of the gas and is beneficial to reducing the speed of the gas, enhancing the uniformity and stability of the gas ejected from the first flame outlet 1531.

[0064] Optionally, the first gas outlet passage 1500 includes a first upstream flow section 1510, a first middle flow section 1520 and a first downstream flow section 1530. The first upstream flow section 1510 intersects with the first middle flow section 1520 to form a first corner 1540, the first middle flow section 1520 intersects with the first downstream flow section 1530 to form a first corner 1540, and the end of the first downstream flow section 1530 constitutes the first flame outlet 1531.

[0065] Specifically, the gas entering the interior of the burner 100 flows along the first gas outlet passage 1500 and finally discharges from the first flame outlet 1531. The first upstream flow section 1510 is upstream of the first middle flow section 1520, and the first middle flow section 1520 is upstream of the first downstream flow section 1530. The gas flows through the first upstream flow section 1510, the first middle flow section 1520, and the first downstream flow section 1530 in sequence and finally discharges from the first flame outlet 1531. In this embodiment, a first corner 1540 is formed at the intersection between the first upstream flow section 1510 and the first middle flow section 1520. When the gas flows from the first upstream flow section 1510 to the first middle flow section 1520, it needs to turn. A first corner 1540 is also formed at the intersection between the first middle flow section 1520 and the first downstream flow section 1530. When the gas flows from the first middle flow section 1520 to the first downstream flow section 1530, it also needs to turn. This is beneficial to further uniform mixing of the gas and is also beneficial to reducing the speed of the gas, improving the uniformity and stability of the gas discharging from the first flame outlet 1531.

[0066] Combined with Figure 13 As shown, in some embodiments, the first downstream flow section 1530 inclines away from the center of the burner 100 from the first middle flow section 1520. When the gas discharges from the first flame outlet 1531, it inclines away from the center of the burner 100 and ejects towards the outside, so that the flame outlet range is larger, which is more beneficial to heating large-sized cookware. For example, the first upstream flow section 1510 extends horizontally, the first middle flow section 1520 extends upward from the first upstream flow section 1510, and the first downstream flow section 1530 extends away from the center of the burner 100 from the first middle flow section 1520. After the gas enters the first gas outlet passage 1500, it needs to turn twice and then discharges from the first flame outlet 1531 along the first downstream flow section 1530.

[0067] Combined with Figures 10 to 14 As shown, in some embodiments, the burner 100 includes a second gas outlet passage 1600. The end of the second gas outlet passage 1600 constitutes a second flame outlet 1621, and at least one second corner 1630 is provided in the second gas outlet passage 1600. The second corner 1630 is provided upstream of the second flame outlet 1621. The gas flowing along the second gas outlet passage 1600 needs to flow through the second corner 1630 before discharging from the second flame outlet 1621. The setting of the second corner 1630 is beneficial to further uniform mixing of the gas and is also beneficial to reducing the speed of the gas, improving the uniformity and stability of the gas discharging from the second flame outlet 1621.

[0068] Optionally, in some embodiments, the second gas outlet channel 1600 includes a second upstream flow section 1610 and a second downstream flow section 1620. The second upstream flow section 1610 and the second downstream flow section 1620 intersect to form a second corner 1630. The end of the second downstream flow section 1620 constitutes a second flame outlet 1621.

[0069] Specifically, the gas entering the interior of the burner 100 flows along the second gas outlet channel 1600 and finally discharges from the second flame outlet 1621. The second upstream flow section 1610 is located upstream of the second downstream flow section 1620. The gas flows through the second upstream flow section 1610 and the second downstream flow section 1620 in sequence and finally discharges from the second flame outlet 1621. In this embodiment, a second corner 1630 is formed at the intersection between the second upstream flow section 1610 and the second downstream flow section 1620. When the gas flows from the second upstream flow section 1610 to the second downstream flow section 1620, it needs to turn, which is beneficial to further uniform mixing of the gas and is beneficial to reducing the speed of the gas, improving the uniformity and stability of the gas ejected from the second flame outlet 1621.

[0070] Combined with Figure 13 As shown, in some embodiments, the second downstream flow section 1620 inclines away from the center of the burner 100 from the second upstream flow section 1610. When the gas ejects from the second flame outlet 1621, it inclines away from the center of the burner 100 and ejects towards, so that the flame outlet range is larger, which is more beneficial to heating large-sized cookware. For example, the second upstream flow section 1610 extends vertically, and the second downstream flow section 1620 extends away from the center of the burner 100 from the second upstream flow section 1610. After the gas enters the second gas outlet channel 1600, it needs to turn several times and then ejects from the second flame outlet 1621 along the second downstream flow section 1620.

[0071] Combined with Figures 1 to 4As shown, in some embodiments, the first flame outlet 1531 is in the shape of an annular slit. The annular-slit-shaped first flame outlet 1531 can achieve large-range heating of the cooking utensil. Moreover, the annular-slit shape also means that the first flame outlet 1531 is continuous along the circumferential direction of the burner 100. The circumferential direction can be understood as the direction around the center of the burner 100. When blast air and gas are ejected from the first flame outlet 1531, the excess oxygen in the gas ejected from the first flame outlet 1531 can increase the contact with the gas ejected from the second flame outlet 1621, improving the oxygen supplementation effect on the gas ejected from the second flame outlet 1621. In addition to the above, it can also be that, in some embodiments, the burner 100 includes a plurality of first flame outlets 1531. The term "plurality" means two or more, that is, the number of the first flame outlets 1531 is at least two. The plurality of first flame outlets 1531 are arranged in an annular and alternating pattern. For example, the plurality of first flame outlets 1531 are arranged in an annular and alternating pattern along the circumferential direction of the burner 100. The plurality of first flame outlets 1531 eject gas to generate flames, which can also achieve large-range heating of the cooking utensil.

[0072] Continue to combine Figures 1 to 4 As shown, in some embodiments, the second flame outlet 1621 is in the shape of an annular slit. The annular-slit-shaped second flame outlet 1621 can achieve large-range heating of the cooking utensil. And the annular-slit-shaped second flame outlet 1621 is continuous along the circumferential direction of the burner 100. When blast air and gas are ejected from the second flame outlet 1621, the excess oxygen in the gas ejected from the second flame outlet 1621 can increase the contact with the gas ejected from the first flame outlet 1531, improving the oxygen supplementation effect on the gas ejected from the first flame outlet 1531. In addition to the above, it can also be that, in some embodiments, the burner 100 includes a plurality of second flame outlets 1621. The term "plurality" means two or more, that is, the number of the second flame outlets 1621 is at least two. The plurality of second flame outlets 1621 are arranged in an annular and alternating pattern. For example, the plurality of second flame outlets 1621 are arranged in an annular and alternating pattern 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 flame outlets 1621 eject gas to generate flames, which can also achieve large-range heating of the cooking utensil.

[0073] Since the first flame outlet 1531 is more outward, when the first flame outlet 1531 is in the shape of an annular slit, the first flame outlet 1531 surrounds the second flame outlet 1621 (at this time, the second flame outlet 1621 can be multiple or in the shape of an annular slit). When the number of the first flame outlets 1531 is multiple, the multiple first flame outlets 1531 surround the second flame outlet 1621 (at this time, the second flame outlet 1621 can be multiple or in the shape of an annular slit). For example Figure 1 As shown, the first flame outlet 1531 in the shape of an annular slit surrounds the second flame outlet 1621 in the shape of an annular slit.

[0074] Combine Figures 8 to 11As 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 2410 and a second cavity 2420. The burner cap 1000 is disposed on the burner head 2000 to cover the first cavity 2410 and the second cavity 2420. The burner cap 1000 is provided with a first fire outlet 1531 and a second fire outlet 1621. The first fire outlet 1531 communicates with the first cavity 2410, and the second fire outlet 1621 communicates with the second cavity 2420.

[0075] Specifically, the burner head 2000 can be integrally formed or assembled by connecting separate components. The first cavity 2410 surrounds the second cavity 2420. The first fire outlet 1531 communicates with the first cavity 2410, and the second fire outlet 1621 communicates with the second cavity 2420.

[0076] When the first fire outlet 1531 ejects blast air and gas and the second fire outlet 1621 ejects induced air and gas, the blast air and gas are introduced into the first cavity 2410 to be mixed and then ejected from the first fire outlet 1531 and ignited to form a flame. The induced air and gas are introduced into the second cavity 2420 to be mixed and then ejected from the second fire outlet 1621 and ignited to form a flame.

[0077] When the first fire outlet 1531 ejects induced air and gas and the second fire outlet 1621 ejects blast air and gas, the induced air and gas are introduced into the first cavity 2410 to be mixed and then ejected from the first fire outlet 1531 and ignited to form a flame. The blast air and gas are introduced into the second cavity 2420 to be mixed and then ejected from the second fire outlet 1621 and ignited to form a flame.

[0078] Continue to combine with Figures 8 to 11 As shown, in some embodiments, the burner cap 1000 includes a first burner cap 1100, a second burner cap 1200, and a third burner cap 1300. The first burner cap 1100 surrounds the second burner cap 1200, and the second burner cap 1200 surrounds the third burner cap 1300. A first fire outlet 1531 is provided between the first burner cap 1100 and the second burner cap 1200, and a second fire outlet 1621 is provided between the second burner cap 1200 and the third burner cap 1300. In this way, the first fire outlet 1531 is farther from the center of the burner 100 than the second fire outlet 1621. It can be seen that the first fire outlet 1531 and the second fire outlet 1621 are provided with a common wall, making the first fire outlet 1531 adjacent to the second fire outlet 1621, and it is easier to achieve flame stabilization of the other one of the first fire outlet 1531 and the second fire outlet 1621 for the one, further improving the flame stabilization effect.

[0079] Furthermore, combine with Figures 8 to 13As shown, in some embodiments, a first gas outlet passage 1500 is provided between the first burner cap 1100 and the second burner cap 1200, and a second gas outlet passage 1600 is provided between the second burner cap 1200 and the third burner cap 1300. Since the first burner cap 1100 surrounds the second burner cap 1200 and the second burner cap 1200 surrounds the third burner cap 1300, the first burner cap 1100 and the second burner cap 1200 can be designed to be spaced apart (i.e., not in contact), and the second burner cap 1200 and the third burner cap 1300 can be designed to be spaced apart (i.e., not in contact). In this way, the first gas outlet passage 1500 forms a continuous annular space, and the second gas outlet passage 1600 also forms a continuous annular space, facilitating the assembly of the burner cap 1000 (see details below).

[0080] Combined with Figures 8 to 11 As shown, in some embodiments, the burner head 2000 includes a first annular wall 2100, a second annular wall 2200, and a third annular wall 2300. The first annular wall 2100 surrounds the second annular wall 2200, and the second annular wall 2200 surrounds the third annular wall 2300. A first cavity 2410 is provided between the first annular wall 2100 and the second annular wall 2200, and a second cavity 2420 is provided between the second annular wall 2200 and the third annular wall 2300. The first burner cap 1100 is annular, the second burner cap 1200 is annular, and the third burner cap 1300 is annular. The first burner cap 1100 is placed on the first annular wall 2100 and thus supported on the first annular wall 2100 under the action of gravity. The second burner cap 1200 is placed on the second annular wall 2200 and thus supported on the second annular wall 2200 under the action of gravity. The third burner cap 1300 is placed on the third annular wall 2300 and thus supported on the third annular wall 2300 under the action of gravity. In this way, the assembly of the burner cap 1000 and the burner head 2000 is facilitated.

[0081] Combined with Figures 1 to 7 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 burner head 2000 so as to communicate with the first cavity 2410, and the second ejector tube 3200 is connected to the burner head 2000 so as to communicate with the second cavity 2420. One of the air inlet ends 3110 of the first ejector tube 3100 and the air inlet end 3210 of the second ejector tube 3200 is matched with the nozzle and receives the blast air, and the other of the air inlet ends 3110 of the first ejector tube 3100 and the air inlet end 3210 of the second ejector tube 3200 is matched with the nozzle.

[0082] Specifically, the first ejector tube 3100 and the second ejector tube 3200 have a Venturi structure.

[0083] Combined with Figures 1 to 5As shown, when the air inlet end 3110 of the first ejector tube 3100 is engaged with the nozzle and receives blast air, and the air inlet end 3210 of the second ejector tube 3200 is engaged with the nozzle, in this case, the nozzle is aligned with the air inlet end 3110 of the first ejector tube 3100 to inject fuel gas. At the same time, the blast air enters through the air inlet end 3110 of the first ejector tube 3100, for example, realized by forced blast through the blower 4000. The blast air and the fuel gas are transported to the first cavity 2410 for mixing and finally ejected from the first flame outlet 1531. 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 3100. The air inlet end 3210 of the second ejector tube 3200 is engaged with the nozzle, that is, the nozzle is aligned with the air inlet end 3210 of the second ejector tube 3200 to inject fuel gas. At the same time, a negative pressure is formed on the surrounding environment to eject air. The ejected air and the fuel gas are transported to the second cavity 2420 for mixing and finally ejected from the second flame outlet 1621.

[0084] Combined with Figure 6 and Figure 7 As shown, when the air inlet end of the second ejector tube is engaged with the nozzle and receives blast air, and the air inlet end 3110 of the first ejector tube 3100 is engaged with the nozzle, in this case, the nozzle is aligned with the air inlet end 3110 of the first ejector tube 3100 to inject fuel gas. At the same time, a negative pressure is formed on the surrounding environment to eject air. The ejected air and the fuel gas are transported to the first cavity 2410 for mixing and finally ejected from the first flame outlet 1531. The nozzle is aligned with the air inlet end 3210 of the second ejector tube 3200 to inject fuel gas. At the same time, the blast air enters through the air inlet end 3210 of the second ejector tube 3200, for example, realized by forced blast through the blower 4000. The blast air and the fuel gas are transported to the second cavity 2420 for mixing and finally ejected from the second flame outlet 1621. It can be understood that the blower 4000 can be fixedly connected to the second ejector tube 3200, which is more convenient for the cooperation between the blower 4000 and the air inlet end 3210 of the second ejector tube 3200.

[0085] The second aspect of the present application discloses a gas stove. Combined with Figures 1 to 14As shown, the gas stove includes the above burner 100. The burner 100 includes a first fire outlet 1531 and a second fire outlet 1621. The first fire outlet 1531 is farther from the center of the burner than the second fire outlet 1621. And one of the first fire outlet 1531 and the second fire outlet 1621 is used for the ejection of blast air and gas, and the other of the first fire outlet 1531 and the second fire outlet 1621 is used for the ejection of entrained air and gas. In the technical solution of the present invention, one of the first fire outlet 1531 and the second fire outlet 1621 can eject gas and blast air. The blast air provides sufficient oxygen to fully burn the gas ejected from the aforementioned one, and the blast air can generate excess oxygen to assist the combustion of the gas ejected from the other of the first fire outlet 1531 and the second fire outlet 1621. In this way, the gas ejected from the aforementioned other can also be fully burned under the action of the entrained air and the excess oxygen provided by the blast air. By such a setting, finally the gas ejected from the first fire outlet 1531 and the second fire outlet 1621 can be fully burned, with high combustion efficiency, which is beneficial to the improvement of the thermal efficiency of the gas stove.

[0086] 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 valve body interrupts the gas supply to one of the first fire outlet 1531 and the second fire outlet 1621, the valve body can maintain the gas supply to the other of the first fire outlet 1531 and the second fire outlet 1621. And at this time, the blower 4000 is still in the working state.

[0087] Specifically, taking the first fire outlet 1531 as the aforementioned one (for ejecting blast air and gas) and the second fire outlet 1621 as the other (for ejecting entrained air and gas) as an example for illustration. 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. The gas volume finally leading to the first fire outlet 1531 and the second fire outlet 1621 is adjusted through the adjustment of the valve body. The specific structure of the valve body can refer to the related technology and will not be elaborated in detail here. When the valve body is adjusted until the gas supply to the first fire outlet 1531 is interrupted, the gas supply to the second fire outlet 1621 can still be maintained, 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 fire outlet 1531 and supplemented into the gas ejected from the second fire outlet 1621, ensuring that the gas ejected from the second fire outlet 1621 can also be fully burned when the gas is not ejected through the first fire outlet 1531.

[0088] 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 remains in the running state until the gas stove is extinguished, at which time the blower 4000 is turned off. Of course, other control logics can also be adopted, which will not be elaborated here one by one.

[0089] The third aspect of the present application discloses an integrated appliance. The integrated appliance includes the gas stove of the above embodiment. The so-called integrated appliance is a device that integrates the functions of a gas stove and 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 than 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.

[0090] 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 fire outlet (1531); and A second fire outlet (1621), the first fire outlet (1531) is away from the center of the burner (100) relative to the second fire outlet (1621), one of the first fire outlet (1531) and the second fire outlet (1621) is suitable for supplying fuel gas and blast air to be ejected, and the other of the first fire outlet (1531) and the second fire outlet (1621) is suitable for supplying fuel gas and induced air to be ejected.

2. The burner (100) according to claim 1, characterized in that: The flame generated by the other of the first flame outlet (1531) and the second flame outlet (1621) is suitable for stabilizing the flame of the one of the first flame outlet (1531) and the second flame outlet (1621).

3. The burner (100) according to claim 1, characterized in that: The burner (100) comprises a first air outlet channel (1500), the end of the first air outlet channel (1500) constituting the first fire outlet (1531), and the first air outlet channel (1500) is provided with at least one first corner (1540) upstream of the first fire outlet (1531).

4. The burner (100) according to claim 3, characterized in that: The first air outlet channel (1500) comprises a first upstream flow segment (1510), a first midstream flow segment (1520) and a first downstream flow segment (1530); the end of the first downstream flow segment (1530) constitutes the first fire outlet (1531); the first upstream flow segment (1510) and the first midstream flow segment (1520) intersect to form the first corner (1540); the first midstream flow segment (1520) and the first downstream flow segment (1530) intersect to form the first corner (1540).

5. The burner (100) according to claim 4, characterized in that: The first downstream flow section (1530) is inclined from the first midstream flow section (1520) away from the center of the burner (100).

6. The burner (100) according to claim 1, characterized in that: The burner (100) comprises a second air outlet channel (1600), the end of the second air outlet channel (1600) constituting the second fire outlet (1621), and the second air outlet channel (1600) is provided with at least one second corner (1630) upstream of the second fire outlet (1621).

7. The burner (100) according to claim 6, characterized in that The second air outlet channel (1600) comprises a second upstream flow segment (1610) and a second downstream flow segment (1620), the end of the second downstream flow segment (1620) constitutes the second fire outlet (1621), and the second upstream flow segment (1610) and the second downstream flow segment (1620) intersect to form the second corner (1630).

8. The burner (100) according to claim 7, characterized in that: The second downstream flow section (1620) is inclined from the second upstream flow section (1610) away from the center of the burner (100).

9. The burner (100) according to claim 1, characterized in that: The first fire outlet (1531) is in the shape of an annular seam and surrounds the second fire outlet (1621); And / or, the second fire outlet (1621) is in the shape of an annular seam.

10. The burner (100) according to claim 1, characterized in that: The burner (100) comprises a plurality of the first fire outlets (1531), and the plurality of the first fire outlets (1531) are alternately arranged in a ring shape and surround the second fire outlet (1621); And / or, the burner (100) comprises a plurality of the second fire outlets (1621), and the plurality of the second fire outlets (1621) are arranged alternately in a ring shape.

11. 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 (2410) and a second cavity (2420); the fire cover (1000) comprises a first fire cover (1100), a second fire cover (1200) and a third fire cover (1300); the first fire cover (1100) surrounds the second fire cover (1200) and a first fire outlet (1531) communicating with the first cavity (2410) is arranged between the first fire cover (1100) and the second fire cover (1200); the second fire cover (1200) surrounds the third fire cover (1300) and a second fire outlet (1621) communicating with the second cavity (2420) is arranged between the second fire cover (1200) and the third fire cover (1300).

12. The burner (100) according to claim 11, characterized in that A first air outlet channel (1500) is provided between the first fire cover (1100) and the second fire cover (1200), and a second air outlet channel (1600) is provided between the second fire cover (1200) and the third fire cover (1300).

13. The burner (100) according to claim 11, characterized in that The stove head (2000) comprises a first ring wall (2100), a second ring wall (2200) and a third ring wall (2300); the first ring wall (2100) surrounds the second ring wall (2200) and a first cavity (2410) is provided between the first ring wall (2100) and the second ring wall (2200); the second ring wall (2200) surrounds the third ring wall (2300) and a second cavity (2420) is provided between the second ring wall (2300); the first fire cover (1100) is annular and is placed on the first ring wall (2100); the second fire cover (1200) is annular and is placed on the second ring wall (2200); and the third fire cover (1300) is annular and is placed on the third ring wall (2300).

14. The burner (100) according to claim 11, characterized in that The burner (100) comprises a first ejector tube (3100) and a second ejector tube (3200), wherein the first ejector tube (3100) is connected to the burner head (2000) and communicates with the first cavity (2410), and the second ejector tube (3200) is connected to the burner head (2000) and communicates with the second cavity (2420), and one of the air inlet end (3110) of the first ejector tube (3100) and the air inlet end (3210) of the second ejector tube (3200) is suitable for receiving fuel gas and blast air, and the other of the air inlet end (3110) of the first ejector tube (3100) and the air inlet end (3210) of the second ejector tube (3200) is suitable for receiving fuel gas and ejection air.

15. The burner (100) according to claim 14, characterized in that The burner (100) comprises a fan (4000), wherein the fan (4000) is suitable for providing blast air, and the fan (4000) is connected and fixed to the first ejector tube (3100) or the second ejector tube (3200).

16. A gas stove, characterized in that: The gas stove comprises the burner (100) according to any one of claims 1 to 15.

17. The gas stove according to claim 16, characterized in that: The gas stove includes a valve body, which is suitable for adjusting the amount of gas. When the valve body interrupts the gas supply to one of the first fire outlet (1531) and the second fire outlet (1621), the valve body is suitable for maintaining the gas supply to the other of the first fire outlet (1531) and the second fire outlet (1621), and the fan (4000) of the gas stove is in working state to provide blowing air.

18. An integrated electrical appliance, characterized in that: The integrated electrical appliance comprises the gas stove according to claim 16 or 17.

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