Burner and cooking device

Abstract

The present invention provides a burner and a cooking device. The burner includes: a shell including an air cavity; a plurality of vents provided in the shell, the vents connecting the air cavity with the external space of the burner; a flame stabilizing member protruding from the shell, the flame stabilizing member is located on the side of the vent away from the direction of gravity, and is bent toward the center of the vent. By providing the flame stabilizing member in the burner, the airflow formed by the mixed gas can be blocked, thereby reducing the flow rate of the airflow. In addition, the flame stabilizing member plays a role in guiding and reducing the airflow, so that the gas can flow stably and improve the stability of the flame. The resistance of the flame stabilizing member to the airflow can change with the change of the heat load, and can play a corresponding flow stabilizing effect on the airflow regardless of the size of the heat load, so as to ensure that even under the condition of small heat load, better ignition performance can be achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of household electrical appliances, and in particular, relates to a burner and a cooking device. Background Art

[0002] The vent holes of the burner in the prior art are of regular shape, which is prone to flashback and poor combustion stability. In addition, in order to adapt to different cooking equipment, the burner requires different heat loads to meet the heating requirements, and when the burner works at different heat loads, the flame stability is poor. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, the first object of the present invention is to provide a burner.

[0005] A second object of the present invention is to provide a cooking device.

[0006] To achieve at least one of the above-mentioned purposes, according to a first aspect of the present invention, a burner is proposed, comprising: a shell including an air cavity; a plurality of air vents provided in the shell, the air vents connecting the air cavity with the external space of the burner; a flame stabilizing member protruding from the shell, the flame stabilizing member being located on the side of the air vent away from the direction of gravity and bent toward the center of the air vent.

[0007] The burner proposed in the present application is used to inhale gas and air, mix the air and gas, and eject the mixed gas of the air and gas for combustion. The burner includes a shell and a plurality of vents. An air cavity is provided in the shell. The vents can connect the air cavity with the external space of the burner. The mixed gas in the air cavity is ejected to the outside of the burner through the vents. The mixed gas ejected from the vents is ignited when it encounters fire outside the burner. The mixed gas flows out stably from the vents, so that the flame around the burner can burn stably.

[0008] At the moment when the mixed gas is just ejected from the vent, the airflow velocity is relatively fast, and as the airflow moves away from the vent, the velocity gradually slows down. Understandably, the stability of the flame is directly related to the stability of the airflow formed by the mixed gas. The more stable the airflow ejected from the vent, the more stable the flame produced by its combustion. In order to improve the stability of the airflow, it is necessary to reduce the airflow velocity of the mixed gas just ejected from the vent. For this purpose, the present application sets a flame stabilizing member on the shell to play a certain role in guiding and reducing the airflow.

[0009] Specifically, the flame-stabilizing member is protrudingly arranged on the shell and is located on the side of the vent away from the gravity direction, that is, the flame-stabilizing member is located above the vent. The flame-stabilizing member located above the vent is bent toward the center of the vent, and the mixed gas first contacts the flame-stabilizing member at the moment of being ejected from the vent. Since the flame-stabilizing member is bent toward one side of the vent, the flame-stabilizing member can play a certain blocking role on the airflow formed by the mixed gas to reduce the flow rate of the airflow. After the mixed gas is ejected from the vent, the airflow formed by it can flow along the wall of the flame-stabilizing member on the side of the vent, and the flame-stabilizing member can also play a certain guiding role on the airflow, so that the airflow can flow smoothly.

[0010] Understandably, the greater the heat load, the faster the airflow speed, and the greater the resistance of the flame stabilizing element to the airflow. Therefore, the resistance of the flame stabilizing element to the airflow changes accordingly with the change of the heat load, and the airflow can be kept stable regardless of the heat load.

[0011] The vent holes may be arranged on both sides of the shell. In the case where the vent holes are arranged on both sides of the shell, the number of the flame stabilizing members is two, and the two flame stabilizing members are respectively arranged on both sides of the shell.

[0012] By providing a flame stabilizing member in the burner, the mixed gas can first contact the flame stabilizing member after being ejected from the vent. Since the flame stabilizing member is bent toward the center of the vent, the airflow formed by the mixed gas is blocked, thereby reducing the flow rate of the airflow. In addition, the airflow can flow along the wall of the flame stabilizing member on the side of the vent. The flame stabilizing member guides and reduces the speed of the airflow, so that the gas can flow stably, thereby improving the stability of the flame. The resistance of the flame stabilizing member to the airflow can change with the change of the heat load. Regardless of the size of the heat load, it can have a corresponding flow stabilizing effect on the airflow, so as to ensure that even under the condition of small heat load, better ignition performance can be achieved.

[0013] According to the above-mentioned burner of the present invention, it can also have the following distinguishing technical features:

[0014] In the above technical solution, further, the projection of the flame stabilizing member onto the shell at least partially covers any one of the multiple ventilation holes.

[0015] In this technical solution, the relative positional relationship between the flame stabilizing member and the vent hole is further defined. The projection of the flame stabilizing member onto the shell at least partially covers any of the multiple vent holes, and after the mixed gas is ejected from the vent hole and flows along the ejection direction for a distance, at least part of the mixed gas flow contacts the flame stabilizing member, thereby reducing the gas flow velocity.

[0016] It is understandable that the larger the area of the vent hole covered by the flame stabilizing member in the direction of the shell, the more mixed gas is blocked by the flame stabilizing member, and the better the airflow deceleration effect. However, if the flame stabilizing member blocks too large an area of the vent hole, it is easy to cause the airflow to be difficult to flow away from the burner, and then concentrate around the burner, resulting in a weaker flame at the far end of the burner. Therefore, the bending angle of the flame stabilizing member needs to be adjusted according to the use requirements.

[0017] By making the flame-stabilizing member project onto the shell to at least partially cover any one of the multiple vent holes, the flame-stabilizing member can block the mixed gas ejected from the vent holes, thereby reducing the speed of the airflow to a certain extent.

[0018] In the above technical solution, further, the shell includes: a first shell; a second shell, which together with the first shell forms an air cavity; the first shell and the second shell together form an air vent, and the flame stabilizing member is arranged on the first shell.

[0019] In this technical solution, the shell is a split structure, specifically, the shell includes a first shell and a second shell, and the first shell and the second shell together form an air cavity. Since the shell is a two-body structure, the first shell and the second shell can be processed separately, and then the first shell and the second shell can be assembled. Compared with the structure in which the shell is integrally formed, the processing of the two-body structure is simpler and the processing efficiency is higher. It can be understood that the first shell and the second shell are both half-shell structures, and this structure can be processed by sheet metal stamping in multiple ways. This processing method is efficient, low-cost, and can achieve the processing of more complex structures.

[0020] Furthermore, the vent hole is formed by the first shell and the second shell, that is, the structures forming the vent hole can be processed on the first shell and the second shell respectively, and then the first shell and the second shell are connected to form a complete vent hole. Compared with the vent hole on the shell of the integral structure, the vent hole on the shell of the split structure is easier to process, and the processing of vent holes of various complex shapes can be realized.

[0021] Specifically, the first shell and the second shell may be connected to each other by screw connection or welding, or by other connection methods.

[0022] Furthermore, the flame stabilizing member is arranged on the first shell, and the flame stabilizing member can be integrally formed with the first shell by sheet metal processing, thereby improving processing efficiency. After the first shell and the second shell are connected in place, the flame stabilizing member is located above the vent formed by the first shell and the second shell, and blocks and guides the mixed gas ejected from the vent.

[0023] Further, the flame stabilizer is in the form of a plate. After the first housing and the second housing are connected in place, the flame stabilizer protrudes beyond the edge of the second housing. Understandably, the length of the flame stabilizer protruding beyond the edge of the second housing has a certain impact on the flow guiding and speed reducing effects of the flame stabilizer. The greater the length of the flame stabilizer protruding beyond the edge of the second housing, the better the flow speed reducing and flow guiding effects on the air flow. However, an overly long protruding flame stabilizer will increase the processing difficulty and occupy a relatively large space. To balance the flow stabilizing function of the flame stabilizer and the processing difficulty, the length range of the flame stabilizer protruding beyond the edge of the second housing is set to 1.5 mm to 3 mm, specifically it can be 2 mm.

[0024] By setting the housing to a two-piece structure, compared with the integrally formed structure of the housing, the processing of this two-piece structure is simpler and the processing efficiency is higher. Sheet metal stamping and other methods can be used for processing. This kind of processing method has high efficiency, low cost, and can realize the processing of more complex structures.

[0025] In the above technical solution, further, the burner further includes: a radiation plate, connected to one end of the flame stabilizer facing away from the housing, and the radiation plate is used to increase the heat radiation area of the flame; the radiation plate extends in a direction away from the housing and the ventilation hole.

[0026] In this technical solution, to increase the heat radiation area of the burner, a radiation plate is also provided in the burner. Specifically, the radiation plate is connected to one end of the flame stabilizer facing away from the housing and extends in a direction away from the housing and the ventilation hole. That is, the position of the radiation plate is tilted upward compared with the ventilation hole, and there is an angle between the radiation plate and the horizontal plane. After the mixed gas is ejected from the ventilation hole, if the flow direction is not restricted, the air flow will flow in all directions, resulting in the air flow being unable to flow to a position far from the burner.

[0027] To enable the air flow to flow more concentratedly in a fixed direction, to make the air flow flow to a position farther from the burner, and to increase the heat radiation area of the flame, a radiation plate is also provided in the burner. The air flow flows along the flame stabilizer to the radiation plate, and then continues to flow along the wall surface of the radiation plate facing the ventilation hole side. Since the radiation plate restricts the flow direction of the air flow, the air flow can flow concentratedly in the same direction, so that the air flow can flow to a position farther from the burner, increasing the area where the air flow is located and expanding the combustion area of the flame.

[0028] Further, the radiation plate is processed from a metal material and has good thermal conductivity. The flame spreads and burns along the extension direction of the radiation plate, and the combustion heat is transferred to the radiation plate. The radiation plate further conducts heat radiation on the heat, thereby further increasing the heat radiation area of the flame.

[0029] Wherein, when the ventilation holes are located on both sides of the housing, the flame stabilizer plates are arranged on both sides of the housing, and the number of radiation plates is two. The two radiation plates are respectively connected to the flame stabilizing edges on both sides of the housing.

[0030] By arranging a radiation plate in the burner, the radiation plate can play a guiding role in the air flow, enabling the air flow to flow to areas far from the burner, increasing the combustion area of the flame. And it can further radiate the heat of the flame through the radiation plate, further increasing the heat radiation area of the flame.

[0031] In the above technical solution, further, the burner further includes: a connecting plate, one end of the connecting plate is connected to the flame stabilizing member and extends in a direction away from the air vent and away from the housing, and the radiation plate is connected to the other end of the connecting plate away from the flame stabilizing member.

[0032] In this technical solution, a connecting plate is also provided in the burner for connecting the flame stabilizing member and the radiation plate. Specifically, one end of the connecting plate is connected to the flame stabilizing member, the other end is connected to the radiation plate, and the connecting plate extends in a direction away from the air vent and away from the housing, that is, the connecting plate extends obliquely upward away from the air vent. Thus, the radiation plate connected to the connecting plate can be further away from the air vent relative to the flame stabilizing member, and the air flow flows along the wall surface of the radiation plate on the side facing the air vent, enabling the air flow to be away from the jet position of the air vent, reducing the influence of the gas ejected from the air vent on the air flow, and keeping the air flow stable.

[0033] By arranging a connecting plate in the burner to connect the burner and the flame stabilizing member, a certain distance can be maintained between the radiation plate and the flame stabilizing member to reduce the influence of the gas ejected from the air vent on the air flow flowing along the radiation plate, improve the stability of the air flow, and thus play a role in stabilizing the flame.

[0034] In the above technical solution, further, the burner further includes: at least one flame stabilizing groove provided on the radiation plate, and the flame stabilizing groove protrudes from the surface of the radiation plate on the side facing the air vent.

[0035] In this technical solution, in order to further stabilize the air flow, at least one flame stabilizing groove is also provided on the radiation plate. Specifically, the flame stabilizing groove protrudes from the surface of the radiation plate on the side facing the air vent. When the air flow flowing along the surface of the radiation plate reaches the protruding position of the radiation plate, the protruding flame stabilizing groove blocks the air flow, further playing a role in stabilizing the air flow and improving the flame stabilizing effect of the burner.

[0036] Among them, there can be multiple flame stabilizing grooves. In order to improve the flame stabilizing effect of the flame stabilizing grooves, two flame stabilizing grooves can be arranged on one radiation plate. Specifically, one flame stabilizing groove is arranged at the edge of the radiation plate on the side away from the housing, and the other flame stabilizing groove is arranged in the middle of the radiation plate. Thus, multiple stabilizations of the air flow are realized.

[0037] By arranging at least one flame stabilizing groove in the burner, the air flow can be blocked by the flame stabilizing groove, further stabilizing the air flow and enhancing the flame stabilizing effect of the burner.

[0038] In the above technical solution, further, a plurality of ventilation holes on one side of the housing are arranged along a first direction, and the flame stabilizing groove extends along a direction parallel to the first direction.

[0039] In this technical solution, the relationship between the setting direction of the flame stabilizing groove and the arrangement direction of the ventilation holes is defined. Among them, a plurality of ventilation holes on one side of the housing are arranged along the first direction, and the flame stabilizing groove extends along a direction parallel to the first direction, that is, the distance between each ventilation hole on one side of the housing and the protrusion of the flame stabilizing groove protruding from the radiation plate is approximately equal. Understandably, the distribution of the mixed gas in the air cavity is approximately uniform, and the velocity of the air flow ejected from each ventilation hole is also approximately the same. Setting the extension direction of the flame stabilizing groove parallel to the arrangement direction of the plurality of ventilation holes on one side of the housing can enable the flame stabilizing groove to evenly stabilize the air flow ejected from each ventilation hole, so that the air flow at each position of the burner is approximately balanced and stable.

[0040] By setting the extension direction of the flame stabilizing groove parallel to the arrangement direction of the plurality of ventilation holes on one side of the housing, the distance between each ventilation hole on one side of the housing and the protrusion of the flame stabilizing groove protruding from the radiation plate can be approximately equal, and the flame stabilizing groove can evenly stabilize the air flow ejected from each ventilation hole, so that the air flow at each position of the burner is approximately balanced and stable.

[0041] In the above technical solution, further, the burner further includes: a plurality of strengthening grooves provided on the radiation plate, and the strengthening grooves form grooves on the surface of the radiation plate facing the ventilation holes and form protrusions on the surface of the radiation plate facing away from the ventilation holes.

[0042] In this technical solution, since the radiation plate is made of a thin metal plate, if the area of the radiation plate is too large, the strength will decrease. To improve the strength of the radiation plate, a plurality of strengthening grooves are provided on the radiation plate, and the strengthening grooves can be processed and formed by sheet metal stamping.

[0043] Specifically, the groove of the strengthening groove on the surface of the radiation plate facing the ventilation holes is a groove, and a protrusion is formed on the surface of the radiation plate facing away from the ventilation holes. By constructing a plurality of strengthening grooves with concave-convex structures on the surface of the radiation plate, the overall strength of the radiation plate is improved.

[0044] By providing a plurality of strengthening grooves on the radiation plate, the overall strength of the radiation plate can be improved, and the radiation plate can be prevented from being bent and deformed under force.

[0045] In the above technical solution, further, a plurality of strengthening grooves are evenly distributed along a direction parallel to the first direction.

[0046] In this technical solution, a plurality of reinforcing grooves are evenly distributed along a direction parallel to the first direction. Understandably, the strength of the radiation plate can be improved by setting the reinforcing grooves. However, if the positions of the reinforcing grooves are not reasonable, the strength of each position of the radiation plate will be uneven, which easily leads to poor strength at some positions of the radiation plate, and further causes damage to the radiation plate. In order to keep the strength of each position of the radiation plate balanced, in this application, a plurality of reinforcing grooves are evenly distributed along a direction parallel to the first direction, so that the plurality of reinforcing grooves are regularly and evenly distributed on the radiation plate, and the strength of each position of the radiation plate can be kept balanced. Moreover, compared with the reinforcing grooves arranged irregularly, the reinforcing grooves evenly distributed along the same direction in this application are easier to process, reducing the processing difficulty and improving the processing efficiency.

[0047] Furthermore, since the side of the reinforcing groove facing the vent hole is configured as a groove, when the air flow flows along the surface of the radiation plate, the groove formed by the reinforcing groove will also have a certain impact on the flow of the air flow. By evenly distributing a plurality of reinforcing grooves along the first direction, the influence of the reinforcing grooves on each vent hole can be made roughly the same, so that the overall air flow can be kept stable.

[0048] By arranging a plurality of reinforcing grooves to be evenly distributed along a direction parallel to the first direction, on the one hand, the overall strength of the radiation plate can be kept balanced, the processing difficulty of the radiation plate can be reduced, and the processing efficiency can be improved; on the other hand, the influence of the reinforcing grooves on each vent hole can be made roughly the same, so that the overall air flow can be kept stable, and the flow stabilization effect can be improved.

[0049] In the above technical solution, further, the burner further includes: at least one spoiler column assembly disposed in the gas cavity for disturbing the mixed gas of fuel gas and air.

[0050] In this technical solution, the burner further includes at least one spoiler column assembly for disturbing the mixed gas of fuel gas and air in the gas cavity so that the fuel gas and air can be fully mixed. Specifically, the spoiler column assembly is disposed in the gas cavity. After the fuel gas and air enter the gas cavity, the high-speed flowing fuel gas and air encounter the spoiler column assembly, and the flow rate of the air flow slows down, enabling the two to be fully mixed before being ejected from the vent hole.

[0051] Understandably, the more the number of spoiler column assemblies, the more obvious the disturbing effect on the fuel gas and air, and the more fully the two are mixed. However, too many spoiler column assemblies will increase the processing cost of the product. Therefore, the number of spoiler column assemblies can be set to two, and the two spoiler column assemblies are arranged near the head and tail ends of the burner.

[0052] By arranging at least one spoiler column assembly in the air cavity, the spoiler column assembly can disturb the flow of the fuel gas and air to decelerate them, enabling the fuel gas and air to be more fully mixed and making the mixing degree of the mixed gas more uniform, thereby improving the situation of flame lift-off at some of the flame holes caused by uneven mixing of the fuel gas and air.

[0053] In the above technical solution, further, the spoiler column assembly includes: a first spoiler column disposed in a first housing; a second spoiler column disposed in a second housing; the first spoiler column and the second spoiler column can be mutually attached.

[0054] In this technical solution, the spoiler column assembly is set as a split structure, and the spoiler column assembly is composed of a first spoiler column and a second spoiler column. Specifically, the first spoiler column is disposed in the first housing, and the second spoiler column is disposed in the second housing. After the first housing and the second housing are connected in place, the first spoiler column and the second spoiler column are attached to form the spoiler column assembly.

[0055] By setting the spoiler column assembly as a structure composed of a first spoiler column and a second spoiler column, the first spoiler column and the second spoiler column can be processed respectively when processing the first housing and the second housing. Compared with the method of integrally processing the spoiler column assembly at one time, the difficulty of split processing is reduced, thereby reducing the production cost and improving the processing efficiency.

[0056] In the above technical solution, further, when there are multiple spoiler column assemblies, the multiple spoiler column assemblies are arranged along the extending direction of the housing.

[0057] In this technical solution, there can be multiple spoiler column assemblies. When there are multiple spoiler column assemblies, the multiple spoiler column assemblies are arranged along the extending direction of the housing. Specifically, the spoiler column assemblies can be set to two, and the two spoiler column assemblies are respectively disposed near the head and tail ends of the housing.

[0058] By arranging the multiple spoiler column assemblies along the extending direction of the housing, the flow disturbing effect of the multiple spoiler column assemblies on the gas in the air cavity can be more balanced, enabling the air and the fuel gas to be more evenly mixed.

[0059] In the above technical solution, further, the first housing includes: a first housing body; two first flanges respectively disposed at both ends of the first housing body; the second housing includes: a second housing body; two second flanges respectively disposed at both ends of the second housing body; a plurality of first grooves disposed in the second flanges, the first grooves communicating with the air cavity; the first flange and the first grooves enclose a ventilation hole.

[0060] In this technical solution, in order to facilitate the processing of vent holes on the first shell and / or the second shell and to make the first shell and the second shell fit more closely, a first flange is provided on the first shell and a second flange is provided on the second shell.

[0061] Specifically, the second shell includes a second shell body and two second flanges, and the two second flanges are respectively arranged at the two ends of the second shell body. The second shell also includes a plurality of first slots, and the plurality of first slots are arranged on the second flanges, and the first slots can connect the air cavity with the external space of the burner. Specifically, the plurality of first slots are respectively arranged on the two second flanges, and the number of the plurality of first slots on the two second flanges can be set equal, and the plurality of first slots on the two second flanges can be symmetrically arranged, so that both sides of the burner can burn at the same time, and the gas supply on both sides of the burner is the same, and the flames on both sides of the burner are symmetrical and uniform.

[0062] Furthermore, the first shell includes a first shell body and two first flanges, and the two first flanges are respectively arranged at the two ends of the first shell body. The two first flanges are arranged in a one-to-one correspondence with the two second flanges. When the first shell and the second shell are assembled into a shell, the first flange fits with the second flange, so that the first shell and the second shell fit tightly, so that the shell as a whole maintains good sealing. Further, the first flange and the first groove body on the second flange are combined to form a vent. By making the first groove body and the first flange located on the second flange jointly constitute the vent, the processing process of the vent can be made simpler. It can be understood that the difficulty of processing the groove body on a plane is lower than that of processing the groove body on a curved surface. Setting the first groove body on the second flange can reduce the difficulty of processing the first groove body, thereby reducing the difficulty of processing the vent, improving processing efficiency, and reducing processing costs.

[0063] By respectively providing the first flange and the second flange in the first shell and the second shell, when the first shell and the second shell are assembled into a shell, the first shell and the second shell are closely connected by the fit of the first flange and the second flange, thereby improving the sealing performance of the burner. In addition, the first flange and the first groove body located on the second flange are combined to form a vent hole, thereby reducing the processing difficulty of the vent hole, improving the processing efficiency, and reducing the processing cost.

[0064] In the above technical solution, further, the first groove body includes: a first groove section, which is arranged on the side facing the air cavity; a second groove section, which is connected to the first groove section and is arranged on the side away from the air cavity; the cross-sectional area of the second groove section is larger than the cross-sectional area of the first groove section, and the connection between the first groove section and the second groove section forms a step section.

[0065] In this technical solution, the first slot body is set as a variable cross-section slot, and the variable cross-section slot structure can be realized by setting the first slot body as a multi-section slot body structure. The first slot body includes a first slot segment and a second slot segment, the first slot body is arranged on the side facing the air cavity, the second slot segment is arranged on the side away from the air cavity, and the first slot segment is connected to the second slot segment, so that the air cavity and the external space of the burner are connected through the first slot segment and the second slot segment. The mixed gas in the air cavity flows out to the external space of the burner through the first slot segment and the second slot segment in sequence.

[0066] The mixed gas flows from the gas cavity to the outside of the burner through the first slot segment and the second slot segment, that is, the first slot segment and the second slot segment constitute a flow channel for the mixed gas. Since the cross-sectional areas of the first slot segment and the second slot segment are different, that is, the cross-sectional areas of the flow channel for the mixed gas are different, the flow channel is a variable cross-section flow channel. It can be understood that when the cross-sectional area of the flow channel changes, the flow rate of the mixed gas will also change accordingly. Specifically, the smaller the cross-sectional area of the flow channel, the faster the flow rate of the mixed gas. Conversely, the larger the cross-sectional area of the flow channel, the slower the flow rate of the mixed gas.

[0067] Furthermore, the cross-sectional area of the second slot section is larger than that of the first slot section, and the mixed gas first enters the first slot section from the gas cavity. Since the cross-sectional area of the first slot section is smaller, that is, the flow path of the mixed gas is narrower, the flow velocity of the mixed gas in the first slot section is faster. The mixed gas passing through the first slot section flows into the second slot section. Since the cross-sectional area of the second slot section is larger than that of the first slot section, that is, the flow path of the mixed gas is widened, the flow velocity of the mixed gas in the second slot section is slower than that in the first slot section.

[0068] Furthermore, since the cross-sectional areas of the first slot section and the second slot section are different, and there is no smooth transition between the first slot section and the second slot section, a step section is formed at the connection between the first slot section and the second slot section, that is, a sudden change in the cross-sectional area occurs at the step section where the first slot section and the second slot section are connected. It can be understood that the sudden change in the flow channel will affect the flow of the mixed gas in the flow channel, and therefore, a vortex will be generated at the step section where the first slot section and the second slot section are connected, and the vortex will affect the mixed gas flow flowing in the first slot body and the second slot body, preventing the flame from escaping from the fire hole, thereby achieving a certain flame stabilization effect.

[0069] By configuring the first slot body to have a first slot section and a second slot section with different cross-sectional areas, the flow velocity of the mixed gas slows down when flowing through the first slot section and the second slot section. A step section is formed at the connection between the first slot section and the second slot section, so that the mixed gas can form a vortex in the step section to prevent the flame from leaving the fire hole, thereby achieving a certain flame stabilization effect.

[0070] In the above technical solution, further, the number of the step sections is two, and the two step sections are symmetrically arranged along the symmetry axis of the vent hole.

[0071] In this technical solution, the number and distribution of the stepped sections are defined. In any one of the first troughs, the number of stepped sections formed by the first trough section and the second trough section is two. Specifically, both the first trough section and the second trough section are axially symmetric troughs, and their axes of symmetry are the same, that is, the first trough section and the second trough section respectively form a stepped section on both sides of the axis of symmetry, and the two stepped sections are symmetrically arranged along the axis of symmetry of the ventilation hole.

[0072] It can be understood that by symmetrically arranging the two stepped sections, when the mixed gas flows through the first trough, vortices can be formed in the two stepped sections respectively, and the amounts of the two vortices are the same and are symmetrically arranged along the axis of symmetry of the first trough, enabling the mixed gas to flow smoothly in the first trough without the situation that the amount of the mixed gas ejected from one side is large and the amount of the mixed gas ejected from the other side is small, so that the flame can be kept stable.

[0073] In the above technical solution, further, the burner includes: a first opening formed by the enclosure of the first housing and the second housing for introducing gas into the gas cavity; at least one second opening provided on the second housing and / or the first housing for communicating the gas cavity with the external space of the burner.

[0074] In this technical solution, in order to introduce gas and air into the intake section, a first opening and a second opening are provided in the burner for introducing gas and air respectively.

[0075] The burner includes a first opening for introducing gas into the intake section. Specifically, the first opening is provided at the end of the burner, and the first opening is formed by the enclosure of the first housing and the second housing. The first opening can be communicated with a gas injection device for providing gas, and the gas enters the intake section from the first opening.

[0076] Further, the burner further includes at least one second opening provided on the second housing and / or the first housing, that is, a second opening can be provided only on the second housing, or second openings can be provided on both the first housing and the second housing. Through the second opening, the intake section can be communicated with the external space of the burner, and air can enter the intake section through the second opening.

[0077] Specifically, the cross-sectional area of the ventilation hole at the end facing the gas cavity is small, and the flow rate of the mixed gas at this position is fast. The mixed gas flows into the ventilation hole at a high speed, thereby forming a negative pressure in the gas cavity. Under the action of the negative pressure, the air outside the burner can be sucked into the intake section through the second opening.

[0078] By providing a first opening and a second opening in the burner, gas and air can enter the intake section through different inlets respectively without affecting each other.

[0079] The second aspect of the present invention further provides a cooking device, including the burner provided in the first aspect of the present invention.

[0080] The cooking device provided by the second aspect of the present invention includes the burner provided in the first aspect of the present invention, and thus has all the beneficial effects of the burner.

[0081] The cooking device can be an oven, a steam oven or an air fryer.

[0082] The additional aspects and advantages of the present invention will become apparent in the following description section, or be learned through the practice of the present invention. Description of the Drawings

[0083] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0084] Figure 1 Figure 1 shows one of the schematic structural diagrams of the burner according to an embodiment of the present invention;

[0085] Figure 2 Figure 2 shows another schematic structural diagram of the burner according to an embodiment of the present invention;

[0086] Figure 3 Figure 3 shows Figure 2 a partial enlarged view of region A of the shown burner;

[0087] Figure 4 Figure 4 shows the schematic structural diagram of the first housing according to an embodiment of the present invention;

[0088] Figure 5 Figure 5 shows the schematic structural diagram of the second housing according to an embodiment of the present invention.

[0089] Wherein, Figures 1 to 5 the corresponding relationship between the reference numerals and the component names in the drawings is as follows:

[0090] 100 burner, 110 housing, 112 first housing, 1121 first housing body, 1122 first flange, 1123 first groove, 113 second housing, 1131 second housing body, 1132 second flange, 114 first opening, 115 second opening, 120 ventilation hole, 130 flame stabilizing member, 140 radiation plate, 141 flame stabilizing groove, 142 strengthening groove, 150 connecting plate, 161 first flow disturbing column, 162 second flow disturbing column. Detailed Embodiments

[0091] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0092] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0093] Refer to the following Figures 1 to 5 A burner 100 and a cooking device provided according to some embodiments of the present invention are described.

[0094] Embodiment 1:

[0095] Combination Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the first aspect of the present invention proposes a burner 100, comprising: a shell 110, including an air cavity; a plurality of air vents 120, provided in the shell 110, the air vents 120 connecting the air cavity with the external space of the burner 100; a flame stabilizing member 130, protruding from the shell 110, the flame stabilizing member 130 is located on the side of the air vent 120 away from the direction of gravity, and is bent toward the center of the air vent 120.

[0096] The burner 100 proposed in the present application is used to inhale gas and air, mix the air and gas, and eject the mixed gas after the air and gas are mixed for combustion. The burner 100 includes a shell 110 and a plurality of vents 120. An air cavity is provided in the shell 110. The vents 120 can connect the air cavity with the external space of the burner 100. The mixed gas in the air cavity is ejected to the outside of the burner 100 through the vents 120. The mixed gas ejected from the vents 120 is ignited when it encounters fire outside the burner 100. The mixed gas flows out stably from the vents 120, so that the flame around the burner 100 can burn stably.

[0097] At the moment when the mixed gas is just ejected from the vent 120, the airflow velocity is relatively fast, and as the airflow moves away from the vent 120, the velocity gradually slows down. It can be understood that the stability of the flame is directly related to the stability of the airflow formed by the mixed gas. The more stable the airflow ejected from the vent 120, the more stable the flame produced by its combustion. In order to improve the stability of the airflow, it is necessary to reduce the airflow velocity of the mixed gas just ejected from the vent 120. For this purpose, the present application sets a flame stabilizing member 130 on the housing 110 to play a certain role in guiding and reducing the airflow.

[0098] Specifically, the flame stabilizing member 130 protrudes from the housing 110 and is located on the side of the ventilation hole 120 away from the direction of gravity, that is, the flame stabilizing member 130 is located above the ventilation hole 120. The flame stabilizing member 130 located above the ventilation hole 120 is bent towards the center of the ventilation hole 120. When the mixed gas sprays out from the ventilation hole 120, it first contacts the flame stabilizing member 130. Since the side of the flame stabilizing member 130 facing the ventilation hole 120 is bent, the flame stabilizing member 130 can play a certain blocking role on the airflow formed by the mixed gas to reduce the flow rate of the airflow. After the mixed gas sprays out from the ventilation hole 120, the airflow formed by it can flow along the wall surface of the side of the flame stabilizing member 130 facing the ventilation hole 120, and the flame stabilizing member 130 can also play a certain guiding role on the airflow to enable the airflow to flow smoothly.

[0099] It can be understood that the greater the heat load, the faster the airflow velocity, and the greater the resistance generated by the flame stabilizing member 130 on the airflow. Thus, the resistance of the flame stabilizing member 130 to the airflow changes accordingly with the change of the heat load, and the airflow can be kept stable regardless of the size of the heat load.

[0100] Among them, the ventilation holes 120 can be arranged on both sides of the housing 110. When the ventilation holes 120 are arranged on both sides of the housing 110, the number of the flame stabilizing members 130 is two, and the two flame stabilizing members 130 are respectively arranged on both sides of the housing 110.

[0101] By arranging the flame stabilizing member 130 in the burner 100, after the mixed gas sprays out from the ventilation hole 120, it can first contact the flame stabilizing member 130. Since the flame stabilizing member 130 is bent towards the center of the ventilation hole 120, it blocks the airflow formed by the mixed gas, thereby reducing the flow rate of the airflow. Moreover, the airflow can flow along the wall surface of the side of the flame stabilizing member 130 facing the ventilation hole 120, and the flame stabilizing member 130 plays a role in guiding and reducing the speed of the airflow, enabling the gas to flow stably, and thus improving the stability of the flame. The resistance of the flame stabilizing member 130 to the airflow can change with the change of the heat load, and it can achieve a corresponding flow stabilizing effect on the airflow regardless of the size of the heat load, so as to ensure that good ignition performance can be achieved even under a small heat load.

[0102] Embodiment 2:

[0103] Combined with Figure 3 As shown, in a specific embodiment based on Embodiment 1, the projection of the flame stabilizing member 130 on the housing 110 at least partially covers any one of the plurality of ventilation holes 120.

[0104] In this embodiment, the relative positional relationship between the flame stabilizer 130 and the vent holes 120 is further defined. The projection of the flame stabilizer 130 onto the housing 110 at least partially covers any one of the plurality of vent holes 120. After the mixed gas is ejected from the vent hole 120 and flows a certain distance along the ejection direction, at least part of the mixed gas flow contacts the flame stabilizer 130, thereby reducing the gas flow velocity.

[0105] It can be understood that the larger the area of the projection of the flame stabilizer 130 onto the housing 110 that covers the vent holes 120, the more mixed gas is blocked by the flame stabilizer 130, and the better the effect of reducing the gas flow velocity. However, if the blocking area of the flame stabilizer 130 on the vent holes 120 is too large, it is likely to cause the gas flow to be difficult to flow away from the burner 100, and then concentrate around the burner 100, resulting in a weaker flame at the distal end of the burner 100. Therefore, it is necessary to adjust the bending angle of the flame stabilizer 130 according to the usage requirements.

[0106] By making the projection of the flame stabilizer 130 onto the housing 110 at least partially cover any one of the plurality of vent holes 120, the flame stabilizer 130 can block the mixed gas ejected from the vent holes 120, and play a certain role in reducing the gas flow velocity.

[0107] Embodiment Three:

[0108] Combined with Figure 3 、 Figure 4 and Figure 5 As shown, in a specific embodiment based on any of the above embodiments, the housing 110 includes: a first housing 112; a second housing 113, which together with the first housing 112 encloses an air cavity; the first housing 112 and the second housing 113 together enclose the vent holes 120, and the flame stabilizer 130 is provided on the first housing 112.

[0109] In this embodiment, the housing 110 is a split structure. Specifically, the housing 110 includes a first housing 112 and a second housing 113, and the first housing 112 and the second housing 113 together enclose an air cavity. Since the housing 110 is a two-piece structure, the first housing 112 and the second housing 113 can be processed separately, and then the first housing 112 and the second housing 113 can be assembled. Compared with the integrally formed structure of the housing 110, this two-piece structure is simpler to process and has higher processing efficiency. It can be understood that both the first housing 112 and the second housing 113 are semi-shell structures, and such structures can be processed by various methods such as sheet metal stamping. This processing method has high efficiency, low cost, and can realize the processing of more complex structures.

[0110] Further, the vent hole 120 is formed by enclosing of the first housing 112 and the second housing 113. That is to say, the structures forming the vent hole 120 can be processed on the first housing 112 and the second housing 113 respectively, and then the first housing 112 and the second housing 113 are connected to form the complete vent hole 120. Compared with the vent hole 120 on the housing 110 of the integral structure, the vent hole 120 on the housing 110 of the split structure is easier to process and can realize the processing of vent holes 120 with various complex shapes.

[0111] Specifically, the first housing 112 and the second housing 113 can be connected to each other by means of screw connection or welding, or other connection methods can also be adopted.

[0112] Further, the flame stabilizing member 130 is arranged on the first housing 112. The flame stabilizing member 130 and the first housing 112 can be integrally formed by sheet metal working, which improves the processing efficiency. After the first housing 112 and the second housing 113 are connected in place, the flame stabilizing member 130 is located above the vent hole 120 formed by enclosing of the first housing 112 and the second housing 113, and blocks and guides the mixed gas ejected from the vent hole 120.

[0113] Further, the flame stabilizing member 130 is of a plate structure. After the first housing 112 and the second housing 113 are connected in place, the flame stabilizing member 130 protrudes from the edge of the second housing 113. It can be understood that the length of the flame stabilizing member 130 protruding from the edge of the second housing 113 has a certain influence on the flow guiding and speed reducing effects of the flame stabilizing member 130. The greater the length of the flame stabilizing member 130 protruding from the edge of the second housing 113, the better the flow speed reducing and flow guiding effects on the air flow. However, if the flame stabilizing member 130 extends too long, it will lead to an increase in processing difficulty and a larger occupied space. To balance the flow stabilizing function of the flame stabilizing member 130 and the processing difficulty, the length range of the flame stabilizing member 130 protruding from the edge of the second housing 113 is set to 1.5 mm to 3 mm, specifically 2 mm.

[0114] By setting the housing 110 as a two-piece structure, compared with the integral forming structure of the housing 110, this two-piece structure is simpler to process and has higher processing efficiency. Sheet metal stamping and other methods can be used for processing. This processing method has high efficiency, low cost, and can realize the processing of more complex structures.

[0115] Embodiment 4:

[0116] Combined with Figure 1 As shown, in a specific embodiment based on any of the above embodiments, the burner 100 further includes: a radiation plate 140, connected to one end of the flame stabilizing member 130 facing away from the housing 110. The radiation plate 140 is used to increase the heat radiation area of the flame; the radiation plate 140 extends in a direction away from the housing 110 and the vent hole 120.

[0117] In this embodiment, in order to increase the heat radiation area of the burner 100, a radiation plate 140 is further provided in the burner 100. Specifically, the radiation plate 140 is connected to one end of the flame stabilizer 130 facing away from the housing 110 and extends in a direction away from the housing 110 and the vent hole 120. That is, the position of the radiation plate 140 is upturned compared to the vent hole 120, and there is an angle between the radiation plate 140 and the horizontal plane. After the mixed gas is ejected from the vent hole 120, if the flow direction thereof is not restricted, the air flow will flow in all directions, resulting in the inability of the air flow to flow to a position far from the burner 100.

[0118] In order to enable the air flow to flow more concentratedly in a fixed direction, enable the air flow to flow to a position farther from the burner 100, and increase the heat radiation area of the flame, a radiation plate 140 is further provided in the burner 100. The air flow flows along the flame stabilizer 130 to the radiation plate 140, and then continues to flow along the wall surface of the radiation plate 140 facing the vent hole 120. Since the radiation plate 140 restricts the flow direction of the air flow, the air flow can flow concentratedly in the same direction, so that the air flow can flow to a position farther from the burner 100, increasing the area where the air flow is located and expanding the combustion area of the flame.

[0119] Furthermore, the radiation plate 140 is made of a metal material with good thermal conductivity. The flame spreads and burns along the extension direction of the radiation plate 140, and the combustion heat is transferred to the radiation plate 140. The radiation plate 140 further performs heat radiation on the heat, thereby further increasing the heat radiation area of the flame.

[0120] Wherein, when the vent holes 120 are located on both sides of the housing 110, the flame stabilizer plates are arranged on both sides of the housing 110, and the number of the radiation plates 140 is two. The two radiation plates 140 are respectively connected to the flame stabilizing edges on both sides of the housing 110.

[0121] By providing the radiation plate 140 in the burner 100, the radiation plate 140 can play a guiding role in the air flow, enabling the air flow to flow to an area far from the burner 100 and increasing the combustion area of the flame. And the heat of the flame can be further radiated by the radiation plate 140, further increasing the heat radiation area of the flame.

[0122] Embodiment Five:

[0123] Combined with Figure 3 As shown, in a specific embodiment based on any of the above embodiments, the burner 100 further includes: a connecting plate 150. One end of the connecting plate 150 is connected to the flame stabilizer 130 and extends in a direction away from the vent hole 120 and away from the housing 110. The radiation plate 140 is connected to the other end of the connecting plate 150 far from the flame stabilizer 130.

[0124] In this embodiment, a connecting plate 150 is further provided in the burner 100 for connecting the flame stabilizing member 130 and the radiation plate 140. Specifically, one end of the connecting plate 150 is connected to the flame stabilizing member 130, and the other end is connected to the radiation plate 140. The connecting plate 150 extends in a direction away from the ventilation hole 120 and away from the housing 110, that is, the connecting plate 150 extends obliquely upward away from the ventilation hole 120. Thereby, the radiation plate 140 connected to the connecting plate 150 can be further away from the ventilation hole 120 relative to the flame stabilizing member 130. The air flow flows along the wall surface of the radiation plate 140 on the side facing the ventilation hole 120, so that the air flow can be away from the jet position of the ventilation hole 120, reducing the influence of the gas ejected from the ventilation hole 120 on the air flow and keeping the air flow stable.

[0125] By providing the connecting plate 150 in the burner 100 to connect the burner 100 and the flame stabilizing member 130, a certain distance can be maintained between the radiation plate 140 and the flame stabilizing member 130, so as to reduce the influence of the gas ejected from the ventilation hole 120 on the air flow flowing along the radiation plate 140, improve the stability of the air flow, and thus play a role in stabilizing the flame.

[0126] Embodiment Six:

[0127] Combined with Figure 2 and Figure 4 As shown, in a specific embodiment based on any of the above embodiments, the burner 100 further includes: at least one flame stabilizing groove 141 provided on the radiation plate 140, and the flame stabilizing groove 141 protrudes from the surface of the radiation plate 140 on the side facing the ventilation hole 120.

[0128] In this embodiment, in order to further stabilize the air flow, at least one flame stabilizing groove 141 is further provided on the radiation plate 140. Specifically, the flame stabilizing groove 141 protrudes from the surface of the radiation plate 140 on the side facing the ventilation hole 120. When the air flow flowing along the surface of the radiation plate 140 reaches the protruding position of the radiation plate 140, the protruding flame stabilizing groove 141 blocks the air flow, further playing a role in stabilizing the air flow and improving the flame stabilizing effect of the burner 100.

[0129] Among them, there can be multiple flame stabilizing grooves 141. In order to improve the flame stabilizing effect of the flame stabilizing grooves 141, two flame stabilizing grooves 141 can be provided on one radiation plate 140. Specifically, one flame stabilizing groove 141 is provided at the edge of the radiation plate 140 away from the housing 110, and the other flame stabilizing groove 141 is provided in the middle of the radiation plate 140. Thereby, multiple stabilizations of the air flow are achieved.

[0130] By providing at least one flame stabilizing groove 141 in the burner 100, the air flow can be blocked by the flame stabilizing groove 141, further stabilizing the air flow and enhancing the flame stabilizing effect of the burner 100.

[0131] Combined Figure 4 As shown, further, a plurality of vent holes 120 on one side of the housing 110 are arranged in a first direction, and the flame stabilizing groove 141 extends in a direction parallel to the first direction.

[0132] In this embodiment, the relationship between the arrangement direction of the flame stabilizing groove 141 and the arrangement direction of the vent holes 120 is defined. Among them, a plurality of vent holes 120 on one side of the housing 110 are arranged in a first direction, and the flame stabilizing groove 141 extends in a direction parallel to the first direction, that is, the distance between each vent hole 120 on one side of the housing 110 and the protrusion of the flame stabilizing groove 141 protruding from the radiation plate 140 is substantially equal. Understandably, the distribution of the mixed gas in the air cavity is substantially uniform, and the velocity of the air flow ejected from each vent hole 120 is also substantially the same. Setting the extending direction of the flame stabilizing groove 141 parallel to the arrangement direction of the plurality of vent holes 120 on one side of the housing 110 can enable the flame stabilizing groove 141 to stably flow the air flow ejected from each vent hole 120 evenly, so that the air flow at each position of the burner 100 is substantially balanced and stable.

[0133] By setting the extending direction of the flame stabilizing groove 141 parallel to the arrangement direction of the plurality of vent holes 120 on one side of the housing 110, the distance between each vent hole 120 on one side of the housing 110 and the protrusion of the flame stabilizing groove 141 protruding from the radiation plate 140 can be made substantially equal, and the flame stabilizing groove 141 can stably flow the air flow ejected from each vent hole 120 evenly, so that the air flow at each position of the burner 100 is substantially balanced and stable.

[0134] Embodiment Seven:

[0135] Combined Figure 2 and Figure 4 As shown, in a specific embodiment based on any of the above embodiments, the burner 100 further includes: a plurality of strengthening grooves 142 provided on the radiation plate 140. The strengthening grooves 142 form grooves on the surface of the radiation plate 140 facing the vent holes 120 and form protrusions on the surface of the radiation plate 140 facing away from the vent holes 120.

[0136] In this embodiment, since the radiation plate 140 is made of a thin metal plate, if the area of the radiation plate 140 is too large, the strength will decrease. To improve the strength of the radiation plate 140, a plurality of strengthening grooves 142 are provided on the radiation plate 140, and the strengthening grooves 142 can be formed by sheet metal stamping.

[0137] Specifically, the reinforcing groove 142 is a groove on the surface of the radiation plate 140 facing the ventilation hole 120, and forms a protrusion on the surface of the radiation plate 140 facing away from the ventilation hole 120. By constructing a plurality of reinforcing grooves 142 with concave-convex structures on the surface of the radiation plate 140, the overall strength of the radiation plate 140 is improved.

[0138] By arranging a plurality of reinforcing grooves 142 on the radiation plate 140, the overall strength of the radiation plate 140 can be improved, and the radiation plate 140 can be prevented from being bent and deformed under force.

[0139] Combined with Figure 4 As shown, further, a plurality of reinforcing grooves 142 are evenly distributed along a direction parallel to the first direction.

[0140] In this embodiment, a plurality of reinforcing grooves 142 are evenly distributed along a direction parallel to the first direction. It can be understood that by arranging the reinforcing grooves 142, the strength of the radiation plate 140 can be improved. However, if the positions of the reinforcing grooves 142 are not reasonable, the strength of each position of the radiation plate 140 will be uneven, which is likely to cause poor strength at some positions of the radiation plate 140, and further cause damage to the radiation plate 140. In order to keep the strength of each position of the radiation plate 140 balanced, in this application, a plurality of reinforcing grooves 142 are evenly distributed along a direction parallel to the first direction, so that the plurality of reinforcing grooves 142 are regularly and evenly distributed on the radiation plate 140, and the strength of each position of the radiation plate 140 can be kept balanced. Moreover, compared with the reinforcing grooves 142 arranged irregularly, the reinforcing grooves 142 evenly distributed in the same direction in this application are easier to process, reducing the processing difficulty and improving the processing efficiency.

[0141] Further, since one side of the reinforcing groove 142 facing the ventilation hole 120 is constructed as a groove, when the air flow flows along the surface of the radiation plate 140, the groove formed by the reinforcing groove 142 will also have a certain impact on the flow of the air flow. By evenly distributing a plurality of reinforcing grooves 142 along the first direction, the influence of the reinforcing grooves 142 on each ventilation hole 120 can be made substantially the same, so that the overall air flow can be kept stable.

[0142] By arranging a plurality of reinforcing grooves 142 to be evenly distributed along a direction parallel to the first direction, on the one hand, the overall strength of the radiation plate 140 can be kept balanced, the processing difficulty of the radiation plate 140 can be reduced, and the processing efficiency can be improved; on the other hand, the influence of the reinforcing grooves 142 on each ventilation hole 120 can be made substantially the same, so that the overall air flow can be kept stable and the flow stabilization effect can be improved.

[0143] Embodiment Eight:

[0144] In a specific embodiment based on any of the above embodiments, the burner 100 further includes: at least one spoiler column assembly, which is arranged in the gas chamber and is used for disturbing the mixed gas of fuel gas and air.

[0145] In this embodiment, the burner 100 further includes at least one spoiler column assembly for disturbing the mixed gas of fuel gas and air in the gas chamber so that the fuel gas and air can be fully mixed. Specifically, the spoiler column assembly is disposed in the gas chamber. After the fuel gas and air enter the gas chamber, the high-speed flowing fuel gas and air encounter the spoiler column assembly, and the flow velocity of the gas flow slows down, enabling the two to be fully mixed and then ejected through the vent hole 120.

[0146] Understandably, the more the number of spoiler column assemblies, the more obvious the disturbing effect on the fuel gas and air, and the more fully the two are mixed. However, too many spoiler column assemblies will increase the processing cost of the product. Therefore, the number of spoiler column assemblies can be set to two, and the two spoiler column assemblies are disposed near the head and tail ends of the burner 100.

[0147] By providing at least one spoiler column assembly in the gas chamber, the fuel gas and air can be disturbed by the spoiler column assembly to decelerate, so that the fuel gas and air can be more fully mixed, and the mixing degree of the mixed gas is more uniform, thereby improving the situation of flame lift-off at some of the flame holes due to uneven mixing of the fuel gas and air.

[0148] Combined Figure 4 and Figure 5 As shown, further, the spoiler column assembly includes: a first spoiler column 161 disposed in the first housing 112; a second spoiler column 162 disposed in the second housing 113; and the first spoiler column 161 and the second spoiler column 162 can be mutually attached.

[0149] In this embodiment, the spoiler column assembly is set as a split structure, and the spoiler column assembly is composed of a first spoiler column 161 and a second spoiler column 162. Specifically, the first spoiler column 161 is disposed in the first housing 112, and the second spoiler column 162 is disposed in the second housing 113. After the first housing 112 and the second housing 113 are connected in place, the first spoiler column 161 and the second spoiler column 162 are attached to each other to form the spoiler column assembly.

[0150] By setting the spoiler column assembly as a structure composed of a first spoiler column 161 and a second spoiler column 162, the first spoiler column 161 and the second spoiler column 162 can be processed respectively when processing the first housing 112 and the second housing 113. Compared with the method of integrally processing the spoiler column assembly at one time, the difficulty of split processing is reduced, thereby reducing the production cost and improving the processing efficiency.

[0151] Further, in the case where there are multiple spoiler column assemblies, the multiple spoiler column assemblies are arranged along the extending direction of the housing 110.

[0152] In this embodiment, there may be multiple spoiler column assemblies. When there are multiple spoiler column assemblies, the multiple spoiler column assemblies are arranged along the extending direction of the housing 110. Specifically, the spoiler column assemblies may be arranged in two, and the two spoiler column assemblies are respectively arranged near the head and tail ends of the housing 110.

[0153] By arranging the multiple spoiler column assemblies along the extending direction of the housing 110, the spoiler effect of the multiple spoiler column assemblies on the gas in the air chamber can be made more balanced, so that the air and the fuel gas can be mixed more evenly.

[0154] Embodiment Nine:

[0155] Combined with Figure 4 and Figure 5 As shown, in a specific embodiment based on any of the above embodiments, the first housing 112 includes: a first housing body 1121; two first flanges 1122, and the two first flanges 1122 are respectively arranged at both ends of the first housing body 1121; the second housing 113 includes: a second housing body 1131; two second flanges 1132, and the two second flanges 1132 are respectively arranged at both ends of the second housing body 1131; a plurality of first grooves 1123 are arranged on the second flange 1132, and the first grooves 1123 communicate with the air chamber; the first flange 1122 and the first groove 1123 enclose a ventilation hole 120.

[0156] In this embodiment, in order to facilitate the processing of the ventilation hole 120 on the first housing 112 and / or the second housing 113, and in order to make the first housing 112 and the second housing 113 fit more closely, the first flange 1122 is provided on the first housing 112, and the second flange 1132 is provided on the second housing 113.

[0157] Specifically, the second housing 113 includes a second housing body 1131 and two second flanges 1132, and the two second flanges 1132 are respectively arranged at both ends of the second housing body 1131. The second housing 113 further includes a plurality of first grooves 1123, and the plurality of first grooves 1123 are arranged on the second flange 1132, and the first grooves 1123 can communicate the air chamber with the external space of the burner 100. Specifically, the plurality of first grooves 1123 are respectively arranged on the two second flanges 1132, the number of the plurality of first grooves 1123 on the two second flanges 1132 can be set to be equal, and the plurality of first grooves 1123 on the two second flanges 1132 can be symmetrically arranged, so as to realize that both sides of the burner 100 can burn simultaneously, and the air supply amounts on both sides of the burner 100 are the same, and the flames on both sides of the burner 100 are symmetrical and uniform.

[0158] Further, the first shell 112 includes a first shell body 1121 and two first flanges 1122, and the two first flanges 1122 are respectively arranged at both ends of the first shell body 1121. The two first flanges 1122 and the two second flanges 1132 are arranged one by one. When the first shell 112 and the second shell 113 are assembled into the shell 110, the first flange 1122 and the second flange 1132 fit together, so that the first shell 112 and the second shell 113 fit closely, so that the shell 110 as a whole maintains good sealing. Further, the first flange 1122 and the first groove 1123 on the second flange 1132 enclose the vent 120. By making the first groove 1123 and the first flange 1122 on the second flange 1132 together constitute the vent 120, the processing process of the vent 120 can be made simpler. It can be understood that it is easier to process the groove body on a plane than on a curved surface. Setting the first groove body 1123 on the second flange 1132 can reduce the difficulty of processing the first groove body 1123, thereby reducing the difficulty of processing the vent hole 120, improving processing efficiency, and reducing processing costs.

[0159] By respectively providing the first flange 1122 and the second flange 1132 in the first shell 112 and the second shell 113, when the first shell 112 and the second shell 113 are assembled into the shell 110, the first shell 112 and the second shell 113 are closely connected by the first flange 1122 and the second flange 1132, thereby improving the sealing performance of the burner 100. In addition, the first flange 1122 and the first groove 1123 located on the second flange 1132 are combined to form the vent hole 120, thereby reducing the processing difficulty of the vent hole 120, improving the processing efficiency, and reducing the processing cost.

[0160] Embodiment ten:

[0161] In a specific embodiment based on any of the above embodiments, the first groove body 1123 includes: a first groove section, arranged on a side facing the air cavity; a second groove section, connected to the first groove section, arranged on a side away from the air cavity; the cross-sectional area of the second groove section is larger than the cross-sectional area of the first groove section, and a step section is formed at the connection between the first groove section and the second groove section.

[0162] In this embodiment, the first slot body 1123 is set as a variable cross-section slot, and the variable cross-section slot structure can be realized by setting the first slot body 1123 as a multi-section slot body structure. Among them, the first slot body 1123 includes a first slot section and a second slot section, the first slot body 1123 is arranged on the side facing the air cavity, and the second slot section is arranged on the side away from the air cavity. The first slot section is connected to the second slot section, so that the air cavity and the external space of the burner 100 are connected through the first slot section and the second slot section. The mixed gas in the air cavity flows out to the external space of the burner 100 through the first slot section and the second slot section in sequence.

[0163] The mixed gas flows from the gas cavity to the outside of the burner 100 through the first slot section and the second slot section. That is, the first slot section and the second slot section constitute the flow path of the mixed gas. Since the cross-sectional areas of the first slot section and the second slot section are different, that is, the cross-sectional area of the flow path of the mixed gas is different, this flow path is a variable cross-sectional flow path. It can be understood that when the cross-sectional area of the flow path changes, the flow velocity of the mixed gas will also change accordingly. Specifically, the smaller the cross-sectional area of the flow path, the faster the flow velocity of the mixed gas. On the contrary, the larger the cross-sectional area of the flow path, the slower the flow velocity of the mixed gas.

[0164] Furthermore, the cross-sectional area of the second slot section is larger than that of the first slot section. The mixed gas first enters the first slot section from the gas cavity. Since the cross-sectional area of the first slot section is smaller, that is, the flow path of the mixed gas is narrower, the flow velocity of the mixed gas in the first slot section is faster. The mixed gas passing through the first slot section flows into the second slot section. Since the cross-sectional area of the second slot section is larger than that of the first slot section, that is, the flow path of the mixed gas becomes wider, the flow velocity of the mixed gas in the second slot section is slower than that in the first slot section.

[0165] Furthermore, since the cross-sectional areas of the first slot section and the second slot section are different and the structure between the first slot section and the second slot section is not a smooth transition, a stepped section is formed at the connection between the first slot section and the second slot section. That is, there is a sudden change in the cross-sectional area at the stepped section where the first slot section and the second slot section are connected. It can be understood that the sudden change in the flow path will affect the flow of the mixed gas in the flow path. Therefore, eddy currents will be generated at the stepped section at the connection between the first slot section and the second slot section. The eddy currents affect the mixed gas flow in the first slot body 1123 and the second slot body, preventing the flame from detaching from the flame holes, thus playing a certain flame stabilizing effect.

[0166] By setting the first slot body 1123 to have a first slot section and a second slot section with different cross-sectional areas, the flow velocity of the mixed gas slows down when flowing through the first slot section and the second slot section. A stepped section is formed at the connection between the first slot section and the second slot section, so that eddy currents can be formed in the mixed gas at the stepped section, preventing the flame from detaching from the flame holes, thus playing a certain flame stabilizing effect.

[0167] Furthermore, the number of stepped sections is two, and the two stepped sections are symmetrically arranged along the axis of symmetry of the ventilation hole 120.

[0168] In this embodiment, the number and distribution of the stepped sections are limited. In any first slot body 1123, the number of stepped sections formed by the first slot section and the second slot section is two. Specifically, both the first slot section and the second slot section are axially symmetric slot bodies, and their axes of symmetry are the same. That is, a stepped section is formed on each side of the axis of symmetry by the first slot section and the second slot section, and the two stepped sections are symmetrically arranged along the axis of symmetry of the ventilation hole 120.

[0169] Understandably, by symmetrically arranging the two stepped sections, when the mixed gas flows through the first tank 1123, vortices can be formed in the two stepped sections respectively, and the amounts of the two vortices are the same and are arranged symmetrically about the axis of symmetry of the first tank 1123, enabling the mixed gas to flow smoothly within the first tank 1123 without the situation where the amount of the mixed gas ejected from one side is large and the amount of the mixed gas ejected from the other side is small, thus keeping the flame stable.

[0170] Embodiment XI:

[0171] Combined with Figure 1 As shown, in a specific embodiment based on any of the above embodiments, the burner 100 includes: a first opening 114, which is formed by enclosing the first housing 112 and the second housing 113, and the first opening 114 is used to introduce the fuel gas into the gas cavity; at least one second opening 115, which is provided on the second housing 113 and / or the first housing 112, and the second opening 115 is used to communicate the gas cavity with the external space of the burner 100.

[0172] In this embodiment, in order to introduce the fuel gas and air into the intake section, a first opening 114 and a second opening 115 are provided in the burner 100, which are used to introduce the fuel gas and air respectively.

[0173] The burner 100 includes a first opening 114, which is used to introduce the fuel gas into the intake section. Specifically, the first opening 114 is provided at the end of the burner 100, and the first opening 114 is formed by enclosing the first housing 112 and the second housing 113. The first opening 114 can be connected to a fuel gas injection device, and the fuel gas injection device is used to provide the fuel gas, and the fuel gas enters the intake section from the first opening 114.

[0174] Furthermore, the burner 100 further includes at least one second opening 115, and the second opening 115 is provided on the second housing 113 and / or the first housing 112, that is, a second opening 115 can be provided only on the second housing 113, or second openings 115 can be provided on both the first housing 110 and the second housing 113. Through the second opening 115, the intake section can be communicated with the external space of the burner 100, and air can enter the intake section through the second opening 115.

[0175] Specifically, the cross-sectional area of the end of the ventilation hole 120 facing the gas cavity is small, and the flow rate of the mixed gas at this position is fast. The mixed gas flows into the ventilation hole 120 at a high speed, thereby forming a negative pressure in the gas cavity. Under the action of the negative pressure, the air outside the burner 100 can be sucked into the intake section through the second opening 115.

[0176] By providing the first opening 114 and the second opening 115 in the burner 100, the fuel gas and air can enter the intake section through different inlets respectively without affecting each other.

[0177] Embodiment Twelve:

[0178] The second aspect of the present invention further provides a cooking device, including the burner 100 proposed in the first aspect of the present invention.

[0179] Since the cooking device provided by the second aspect of the present invention includes the burner 100 proposed in the first aspect of the present invention, it has all the beneficial effects of the burner 100.

[0180] The cooking device can be an oven, a steam oven, or an air fryer.

[0181] In the present invention, the term "a plurality of" means two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "joined" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0182] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0183] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A burner, characterized in that, Comprising: A housing including an air cavity; A plurality of ventilation holes provided in the housing, the ventilation holes communicating the air cavity with the external space of the burner; A flame stabilizing member protruding from the housing, the flame stabilizing member being located on a side of the ventilation hole away from the direction of gravity and bent towards the center of the ventilation hole, the flame stabilizing member guiding and decelerating the airflow ejected from the ventilation hole; The burner further includes: A radiation plate connected to an end of the flame stabilizing member away from the housing, the radiation plate being used to increase the heat radiation area of the flame; The radiation plate extends in a direction away from the housing and the ventilation hole, and the airflow flows along the flame stabilizing member to the radiation plate and then flows along the radiation plate to a position away from the burner.

2. The burner according to claim 1, wherein: The projection of the flame stabilizing member onto the housing at least partially covers any one of the plurality of ventilation holes.

3. The burner according to claim 1, characterized in that, The housing includes: A first housing; A second housing that cooperates with the first housing to enclose the air cavity; The first housing and the second housing cooperate to enclose the ventilation hole, and the flame stabilizing member is provided on the first housing.

4. The burner according to claim 1, characterized in that, The burner further includes: A connecting plate, one end of the connecting plate is connected to the flame stabilizing member and extends in a direction away from the ventilation hole and away from the housing, and the radiation plate is connected to the other end of the connecting plate away from the flame stabilizing member.

5. The burner according to claim 1, characterized in that, The burner further includes: At least one flame stabilizing groove provided on the radiation plate, the flame stabilizing groove protruding from a surface of the radiation plate facing the ventilation hole side.

6. The burner according to claim 5, wherein: The plurality of ventilation holes located on one side of the housing are arranged in a first direction, and the flame stabilizing groove extends in a direction parallel to the first direction.

7. The burner according to claim 6, characterized in that, The burner further includes: A plurality of reinforcing grooves provided on the radiation plate, the reinforcing grooves forming grooves on a surface of the radiation plate facing the ventilation hole side and forming protrusions on a surface of the radiation plate facing away from the ventilation hole side.

8. The burner according to claim 7, wherein: The plurality of reinforcing grooves are evenly distributed in a direction parallel to the first direction.

9. The burner according to claim 3, characterized in that, The burner further includes: At least one turbulence column assembly provided in the air cavity for turbulizing the mixed gas of fuel gas and air.

10. The burner according to claim 9, characterized in that, The turbulence column assembly includes: A first turbulence column provided on the first housing; A second turbulence column provided on the second housing; The first turbulence column and the second turbulence column can be mutually fitted.

11. The burner according to claim 9, wherein: When there are a plurality of the turbulence column assemblies, the plurality of turbulence column assemblies are arranged along the extending direction of the housing.

12. The burner according to claim 3, characterized in that, The first housing includes: A first housing body; Two first flanges respectively provided at two ends of the first housing body; The second housing includes: A second housing body; Two second flanges respectively provided at two ends of the second housing body; A plurality of first grooves provided on the second flange, the first grooves communicating with the air cavity; The first flange and the first groove cooperate to enclose the ventilation hole.

13. The burner according to claim 12, characterized in that, The first groove includes: A first groove section, disposed on a side facing the air cavity; a second slot section, connected to the first slot section and disposed on a side away from the air cavity; The cross-sectional area of the second slot segment is greater than the cross-sectional area of the first slot segment, and a step segment is formed at the connection between the first slot segment and the second slot segment.

14. The burner according to claim 13, characterized in that The number of the step sections is two, and the two step sections are symmetrically arranged along the symmetry axis of the vent hole.

15. The burner according to claim 3, characterized in that, The burner comprises: a first opening, the first shell and the second shell together enclose the first opening, and the first opening is used to introduce gas into the gas cavity; At least one second opening is provided in the second shell and / or the first shell, and the second opening is used to connect the air cavity with the external space of the burner.

16. A cooking device, characterized in that, include: A burner as claimed in any one of claims 1 to 15.

17. The cooking device according to claim 16, characterized in that The cooking device may be an oven, a steam oven or an air fryer.

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