Gas stove

Abstract

The utility model discloses a gas stove, relates to the technical field of stoves, and aims to solve the problem that an energy-gathering disc prevents secondary air from being supplemented to flames. The gas stove comprises a stove body, a burner and an energy gathering disc. And the combustor is arranged on the stove body. The energy gathering disc is annular and is arranged around the periphery of the combustor, a first gap is formed between the inner side wall of the energy gathering disc and the combustor, a second gap is formed between the energy gathering disc and the stove body, and the first gap is communicated with the second gap. An air cavity is formed in a disc body of the energy gathering disc, a first opening is formed in the inner side wall of the energy gathering disc, the first opening is communicated with the first gap, and the first opening is communicated with the air cavity. A second opening is formed in the outer side wall of the energy gathering disc and communicates with the air cavity. When secondary air flows out, part of the secondary air quickly flows through the first opening, so that the first opening is in negative pressure, the air cavity communicated with the first opening is also in a negative pressure state, and then the air enters the air cavity from the second opening and finally flows out of the first opening to be supplemented to the combustor together with the secondary air.

Description

Technical Field

[0001] This utility model relates to the field of stove technology, and in particular to a gas stove. Background Technology

[0002] A gas stove is a kitchen appliance that uses petroleum gas, manufactured gas, natural gas, or other gases as fuel for heating.

[0003] The main components of the combustion system in a gas stove include the injector, the jetting device, the burner head, and the burner cap. Gas is burned through the flame holes in the burner cap to heat the bottom of the cookware.

[0004] To improve the thermal efficiency of gas stoves, they typically include a heat-concentrating plate. This plate serves two purposes: firstly, it supports the cookware; secondly, it blocks radiative and convective heat transfer between the flame and the surrounding air, reducing heat loss. However, while reducing convective heat transfer, the heat-concentrating plate also, to some extent, prevents the surrounding air from replenishing the flame as secondary air. Utility Model Content

[0005] The purpose of this invention is to provide a gas stove that addresses the problem of the energy-concentrating plate affecting secondary air replenishment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a gas stove, including a stove body, a burner, and an energy-concentrating plate. The burner is mounted on the stove body. The energy-concentrating plate is annular and surrounds the outer periphery of the burner. A first gap exists between the inner wall of the energy-concentrating plate and the burner, and a second gap exists between the energy-concentrating plate and the stove body. The first and second gaps are connected. In this way, air from outside the energy-concentrating plate can enter the first gap between the energy-concentrating plate and the burner through the second gap between the energy-concentrating plate and the stove body, thereby achieving secondary air replenishment and ensuring sufficient oxygen for the burner to burn the gas, ensuring complete combustion.

[0008] Based on this, an air cavity is provided within the energy-concentrating disk. A first opening is provided on the inner wall of the energy-concentrating disk, communicating with a first gap and also with the air cavity. Therefore, a second opening is provided on the outer wall of the energy-concentrating disk, communicating with the air cavity.

[0009] As air flows along the energy-concentrating disk, the rapidly flowing air creates a negative pressure near the first opening on the inner wall of the disk, consequently creating a negative pressure within the air cavity connected to the first opening. This air cavity is also connected to a second opening, allowing air from the periphery of the disk to enter the air cavity through the second opening and then flow out from the first opening. This secondary air then flows into the space between the inner wall of the energy-concentrating disk and the burner, replenishing the secondary air supply. This solves the problem of the energy-concentrating disk hindering secondary air replenishment.

[0010] In some embodiments, the inner wall of the energy-concentrating plate has a first region, and along the central axis of the energy-concentrating plate, the distance between the first region and the central axis of the energy-concentrating plate gradually increases from the end of the first region closer to the stove body to the end of the first region farther away from the stove body. A first opening is provided in the first region.

[0011] In some embodiments, the inner sidewall includes an inclined surface along the central axis of the energy-concentrating plate, extending from one end of the inclined surface near the stove body to the other end of the inclined surface away from the stove body. The distance between the inclined surface and the central axis of the energy-concentrating plate gradually increases, and the inclined surface forms a first region.

[0012] In some embodiments, the inner sidewall includes an arc-shaped surface, which includes a windward side and a leeward side. Along the central axis of the energy-concentrating plate, from the end of the first region closer to the stove body to the end of the first region farther away from the stove body, the distance between the windward side and the central axis of the energy-concentrating plate gradually decreases, and the distance between the leeward side and the axis of the energy-concentrating plate gradually increases. The leeward side is farther away from the stove body than the windward side, and the leeward side forms the first region.

[0013] In some embodiments, the outer wall of the energy-concentrating plate has a first end and a second end disposed opposite to each other, the first end being farther away from the stove body than the second end. Along the direction from the first end to the second end, a second opening is close to the first end and is located at one-third of the outer wall of the energy-concentrating plate.

[0014] In some embodiments, the outer wall of the energy-concentrating plate has a first end and a second end disposed opposite to each other, the first end being farther away from the stove body than the second end. Along the direction from the first end to the second end, a second opening is close to the first end and is located at one-fifth of the outer wall of the energy-concentrating plate.

[0015] In some embodiments, the burner is provided with a flame outlet, and the distance between the flame outlet and the stove body is a first distance. The distance between the end of the upper plate near the burner and the stove body is a second distance, wherein the second distance is less than the first distance.

[0016] In some embodiments, the energy-concentrating plate further includes a lower plate, an upper plate, and a support leg. The lower plate is annular, placed on the cooktop, and surrounds the outer periphery of the burner. The upper plate is annular, located on the side of the lower plate away from the cooktop, and connected to the lower plate, forming an air cavity between them. The upper plate has a first mounting hole, and the support leg is disposed within the first mounting hole and connected to the upper plate. The lower plate has a first clearance hole, opposite to the first mounting hole, and the support leg passes through the first clearance hole, with a gap between the peripheral wall of the support leg and the inner peripheral wall of the first clearance hole.

[0017] In some embodiments, the energy-concentrating plate further includes a heat insulation plate, which is annular and located within the air cavity, dividing the air cavity into a first sub-cavity and a second sub-cavity. The heat insulation plate has a second clearance hole, which is opposite to the first mounting hole. A support leg also passes through the second clearance hole, and a gap exists between the peripheral wall of the support leg and the inner peripheral wall of the second clearance hole.

[0018] In some embodiments, a first connecting protrusion is provided on the inner side of the heat insulation plate, and the first connecting protrusion is connected to one of the upper plate or the lower plate. A second connecting protrusion is provided on the outer side of the heat insulation plate, and the second connecting protrusion is connected to one of the upper plate or the lower plate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the gas stove provided in this application;

[0021] Figure 2 for Figure 1 A partially enlarged view of the cross-sectional diagram of a gas stove;

[0022] Figure 3 for Figure 1 Cross-sectional view of the central energy-concentrating disk;

[0023] Figure 4 A schematic diagram of the inner wall of the energy-concentrating disk, including the inclined surface;

[0024] Figure 5 A schematic diagram showing the inner wall of the energy-concentrating disk, including the arc-shaped surface;

[0025] Figure 6 for Figure 1 Disassembly diagram of the central energy-concentrating disk;

[0026] Figure 7 for Figure 6 A schematic diagram of the lower and middle sections;

[0027] Figure 8 for Figure 6 A schematic diagram of the upper and middle sections;

[0028] Figure 9 for Figure 1 Schematic diagram of the burner;

[0029] Figure 10 This is a schematic diagram of the first and second distances;

[0030] Figure 11 This is one of the schematic diagrams for the second opening;

[0031] Figure 12 This is the second schematic diagram of the second opening;

[0032] Figure 13 This is the third schematic diagram of the second opening;

[0033] Figure 14 A schematic diagram of the support legs;

[0034] Figure 15 This is a schematic diagram of the first clearance hole 310;

[0035] Figure 16 This is a schematic diagram of a heat insulation panel;

[0036] Figure 17 This is a schematic diagram of the second clearance hole.

[0037] Figure label:

[0038] 100-Gas stove; 1-Stove body; 11-Bottom shell; 110-Mounting cavity; 12-Panel; 120-Allowance opening; 101-First gap; 102-Second gap;

[0039] 2-Burner; 21-Wat head; 210-Mixing chamber; 22-Flame cap assembly; 200-Flame outlet; 23-Support leg; 24-Heat insulation plate; 240-Second clearance hole;

[0040] 3-Energy Concentrating Plate; 31-Lower Plate Body; 310-First Clearance Hole; 311-First Side Wall; 3111-First Region; 3222-Second Region; 312-Second Side Wall; 313-Bottom Wall; 32-Upper Plate Body; 320-First Mounting Hole; 3201-First Plane; 3202-First Inclined Surface; 3203-Second Plane; 3204-Second Inclined Surface; 300-Air Cavity; 3001-First Sub-Cavity; 3002-Second Sub-Cavity; 301-First Opening; 302-Second Opening. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or relative positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in actual application, provided that the relative positional relationship shown in the accompanying drawings is satisfied.

[0043] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] In embodiments of this invention, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0046] In this embodiment of the invention, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in this embodiment of the invention should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0047] like Figure 1 As shown, Figure 1 This is a schematic diagram of the gas stove 100 provided in this application.

[0048] The gas stove 100 includes a stove body 1, which can provide installation space for other components of the gas stove 100 or provide support for other components of the gas stove 100.

[0049] In some embodiments, such as Figure 1 As shown, the stove body 1 includes a bottom shell 11 and a panel 12, wherein the bottom shell 11 forms an opening in the interior of a mounting cavity 110. The mounting cavity 110 can provide installation space for other components of the gas stove 100 and provide support for other components installed therein.

[0050] Therefore, panel 12 can be placed over the opening of the bottom shell 11 and connected to the bottom shell 11. Panel 12 is used to cover the opening of the bottom shell 11, thereby preventing debris from falling into the mounting cavity 110 of the bottom shell 11 and ensuring that other components located in the mounting cavity 110 are not damaged. In addition, panel 12 can also provide support for other components placed on it.

[0051] See Figure 1 The gas stove 100 provided in this application also includes a burner 2, which is mounted on the stove body 1, and the stove body 1 provides support for the burner 2. The burner 2 is the core component of the gas stove 100. The burner 2 allows gas and primary air to be mixed in a certain way, and the mixed gas formed by the gas and primary air flows out of the burner 2 and is ignited to form a flame.

[0052] In some embodiments, the burner 2 may be disposed in the mounting cavity 110 of the bottom shell 11. In this case, the panel 12 is also provided with a clearance opening 120, which is directly opposite to the burner 2, so that the burner 2 can be located within the opening range of the clearance opening 120, or a part of the burner 2 can extend out of the clearance opening 120. This ensures that when the burner 2 burns gas to produce a flame, the panel 12 will not obstruct the flame produced by the burner 2, ensuring that the burner works normally and heats the bottom of the cookware for the user to cook.

[0053] In some embodiments, the burner 2 may also be placed on the panel 12, that is, the burner 2 is not located in the mounting cavity 110 of the bottom shell 11. For example, a fully top-intake gas stove.

[0054] like Figure 1 As shown, the gas stove 100 provided in this application also includes an energy-concentrating plate 3, which is ring-shaped and surrounds the outer periphery of the burner 2.

[0055] Based on this, such as Figure 2 As shown, there is a first gap 101 between the inner wall of the energy-concentrating plate 3 and the burner 2, and a second gap 102 between the energy-concentrating plate 3 and the stove body 1. The first gap 101 and the second gap 102 are connected.

[0056] It should be noted that the inner sidewall of the aforementioned energy-concentrating disk 3 refers to the inner ring of the annular energy-concentrating disk 3, and the portion of the sidewall facing the burner 2. The gap formed between this portion of the sidewall and the burner 2 is the aforementioned first gap 101. The second gap 102 refers to the gap formed between the portion of the energy-concentrating disk 3 and the stove body 1 (panel 12) that is positioned opposite each other along the axial direction of the energy-concentrating disk 3.

[0057] In this way, the air outside the energy-concentrating plate 3 can enter the first gap 101 between the energy-concentrating plate 3 and the burner 2 through the second gap 102 between the energy-concentrating plate 3 and the stove body 1, thereby achieving secondary air replenishment, ensuring sufficient oxygen when the burner 2 burns the gas, and ensuring complete combustion of the gas.

[0058] To address the issue of the energy-concentrating disc 3 affecting the supply of secondary air to the burner 2, such as... Figure 3 As shown, the energy-concentrating disk 3 provided in this application has an air cavity 300 inside its disk body. The inner sidewall of the energy-concentrating disk 3 has a first opening 301, which communicates with the first gap 101 and also with the air cavity 300. Based on this, the outer sidewall of the energy-concentrating disk 3 has a second opening 302, which communicates with the air cavity 300.

[0059] It should be noted that the outer wall of the aforementioned energy-concentrating disk 3 refers to the part of the disk body that is opposite to the inner wall of the energy-concentrating disk 3.

[0060] When the gas stove 100 is working, the burner 2 burns gas to produce a flame, and the air around the energy-concentrating plate 3 can be supplied to the inside of the energy-concentrating plate 3 through the interconnected first gap 101 and second gap 102.

[0061] Based on this, the air surrounding the energy-concentrating disk 3 flows sequentially along the outer wall, bottom wall, and inner wall of the energy-concentrating disk 3, eventually flowing into the space between the energy-concentrating disk 3 and the burner 2 to provide oxygen for the combustion gas in the burner 2. During the air flow along the energy-concentrating disk 3, the rapidly flowing air creates a negative pressure near the first opening 301 on the inner wall of the energy-concentrating disk 3, which in turn creates a negative pressure within the air cavity 300 connected to the first opening 301. The air cavity 300 is also connected to the second opening 302, allowing air from the periphery of the energy-concentrating disk 3 to enter the air cavity 300 through the second opening 302, then flow out from the first opening 301, and flow into the space between the inner wall of the energy-concentrating disk 3 and the burner 2 along with the rapidly flowing secondary air to replenish the secondary air supply.

[0062] As described above, the energy-concentrating disk 3 provided in this application allows air from the periphery of the energy-concentrating disk 3 to flow along the peripheral wall of the energy-concentrating disk 3 into the space between the energy-concentrating disk 3 and the burner 2 to replenish secondary air. Simultaneously, it allows air from the periphery of the energy-concentrating disk 3 to flow sequentially through the second opening 302, the air cavity 300, and the first opening 301, ultimately flowing into the space between the energy-concentrating disk 3 and the burner 2 to further replenish secondary air. This, to a certain extent, solves the problem of the energy-concentrating disk 3 obstructing secondary air replenishment.

[0063] In some embodiments of this application, such as Figure 4 As shown, the inner wall of the energy-concentrating plate 3 has a first region 3111 and a second region 3222, and the energy-concentrating plate 3 is composed of the first region 3111 and the second region 3222. Along the central axis of the energy-concentrating plate 3, from the end of the first region 3111 closer to the stove body 1 to the end of the first region 3111 farther away from the stove body 1, the distance between the first region 3111 and the central axis of the energy-concentrating plate 3 gradually increases.

[0064] like Figure 4 As shown, the aforementioned inner wall may include an inclined surface 3100, extending along the central axis of the energy-concentrating disk 3 from one end of the inclined surface 3100 closest to the stove body 1 to the other end of the inclined surface 3100 furthest from the stove body 1. The distance between the inclined surface 3100 and the central axis of the energy-concentrating disk 3 gradually increases, and the inclined surface 3100 forms a first region 3111.

[0065] In this way, when the first opening 301 is opened on the inclined surface 3100, during the process of the secondary air flowing along the inner wall of the energy-concentrating disk 3, when the secondary air flows through the inclined surface 3100 (the direction of secondary air flow is as follows) Figure 2As shown, the distance between the inclined plane 3100 and the central axis of the energy-concentrating disk 3 gradually increases. This creates a negative pressure state near the inclined plane 3100, causing the first opening 301 on the inclined plane 3100 to connect with the air cavity 300. The air in the air cavity 300 can be driven by the secondary air and flow with it. Furthermore, the second opening 302, which connects with the air cavity 300, ensures that air can be replenished into the air cavity 300.

[0066] In some embodiments, such as Figure 5 As shown, the inner wall includes an arc-shaped surface, which includes a windward side and a leeward side. Along the central axis of the energy-concentrating plate 3, from the end of the first region 3111 closest to the stove body 1 to the end of the first region 3111 furthest from the stove body 1, the distance between the windward side and the central axis of the energy-concentrating plate 3 gradually decreases, while the distance between the leeward side and the central axis of the energy-concentrating plate 3 gradually increases. The leeward side is farther from the stove body 1 than the windward side.

[0067] Based on this, the leeward side forms the first region 3111, and the windward side forms the second region 3222. It can be understood that along the central axis of the energy-concentrating disk 3, from the end of the first region 3111 closest to the stove body 1 to the end of the first region 3111 furthest from the stove body 1, the distance between the first region 3111 and the central axis of the energy-concentrating disk 3 gradually increases, while the distance between the second region 3222 and the central axis of the energy-concentrating disk 3 gradually decreases. The first region 3111 is farther from the stove body 1 than the second region 3222.

[0068] In this way, the first opening 301 is located in the upper half of the arc, that is, the first opening 301 is located in the first region 3111, which is the leeward side. As the secondary air flows along the energy-concentrating disk 3 through the second region 3222 and the first region 3111 in sequence, a more obvious negative pressure state can be formed on the leeward side, so that more secondary air can enter the air cavity 300 from the second opening 302, and then flow out from the first opening 301, and be replenished to the burner 2 along with the fast-flowing airflow to provide oxygen for combustion.

[0069] The energy-concentrating disk 3 described above will be further explained below with reference to the accompanying drawings. For example... Figure 6 As shown, in some embodiments of this application, the energy-concentrating plate 3 includes a lower plate body 31, which is annular. The lower plate body 31 is placed on the stove body 1 and is arranged around the outer periphery of the burner 2.

[0070] See also Figure 6 The energy-concentrating plate 3 provided in this application also includes an upper plate body 32, which is located on the side of the lower plate body 31 away from the stove body 1, and the upper plate body 32 is connected to the lower plate body 31. Based on this, an air cavity 300 is formed between the upper plate body 32 and the lower plate body 31.

[0071] Furthermore, it should be noted that the inner wall of the lower plate 31 is provided with a first opening 301. Figure 3 The outer side wall of the lower plate 31 is provided with a second opening 302. Figure 3 It should be noted that the inner wall of the lower plate body 31 refers to the inner ring of the lower plate body 31 and the portion facing the burner 2. The outer wall of the lower plate body 31 refers to the outer ring of the lower plate body 31 and the portion opposite to the inner wall.

[0072] In this way, it can be ensured that the air around the energy-concentrating disk 3 can flow through the first opening 301 when it flows along the lower disk body 31, so that the air cavity 300 can be in a negative pressure state, and then the air around the energy-concentrating disk 3 can enter the air cavity 300 from the second opening 302, and then flow out from the first opening 301, and flow into the space between the energy-concentrating disk 3 and the burner 2 with the secondary air flow to supplement oxygen for combustion.

[0073] The lower plate will be further explained below with reference to the attached diagram, such as... Figure 7 As shown, the lower plate body 31 has a first side wall 311, which is the inner side wall of the energy-concentrating plate 3, and a first opening 301 is provided on the first side wall 311.

[0074] The lower plate 31 also has a second side wall 312, which is the outer side wall of the energy-concentrating plate 3, and the second opening 302 is provided on the second side wall 312.

[0075] The lower plate body 31 also has a bottom wall 313, one side of which is connected to the first side wall 311, and the other side of which is connected to the second side wall 312. The end of the first side wall 311 away from the bottom wall 313 and the end of the second side wall 312 away from the bottom wall 313 are far apart from each other.

[0076] In this way, the cross-sectional shape obtained by cutting the lower plate 31 along its axis can be an inverted V-shape (see...). Figure 7 This can guide the air, reduce the resistance the air encounters when flowing along the lower plate, and facilitate the flow of air along the lower plate 31, thereby facilitating the replenishment of secondary air.

[0077] For example, when the air around the energy-concentrating disk 3 flows along the first side wall 311, the air will not collide with the first side wall 311 perpendicularly, but will contact the inclined first side wall 311. This can reduce the resistance to the air and play a guiding role, so that the air on the side of the first side wall 311 away from the air cavity 300 flows more smoothly along the first side wall 311, and then flows along the bottom wall 313 and the second side wall 312 in sequence, and finally replenishes the flame combustion of the burner 2 to provide oxygen for flame combustion.

[0078] When air flows along the second sidewall 312, firstly, the air will not collide with the second sidewall 312 perpendicularly; secondly, the air can flow towards the direction closer to the axis of the energy-concentrating disk 3 under the guidance of the inclined second sidewall 312. The secondary air flowing towards the axis of the energy-concentrating disk 3 can flow more directly to the flame combustion area of ​​the burner 2, making the secondary air more efficiently replenish the location that needs oxygen replenishment, that is, closer to the root of the flame.

[0079] The upper plate 32 will now be further explained with reference to the accompanying drawings. For example... Figure 8 As shown, the upper plate 32 has a first plane 3201, a first inclined plane 3202, a second plane 3203 and a second inclined plane 3204 formed sequentially from the inside to the outside.

[0080] Furthermore, along the direction from the inside to the outside of the upper plate 32, the distance between the first inclined surface 3202 and the stove body 1 gradually increases, meaning that the first inclined surface is set at an angle. Along the direction from the inside to the outside of the upper plate 32, the distance between the second inclined surface 3204 and the stove body 1 gradually increases, meaning that the second inclined surface 3204 is also set at an angle.

[0081] The inclined arrangement of the first inclined surface 3202 and the second inclined surface 3204 can provide guidance for the high-temperature flue gas generated when the burner 2 burns fuel, which is conducive to the discharge of the high-temperature flue gas.

[0082] Furthermore, it should be noted that the first plane 3201 is closer to the stove body 1 than the second plane 3203 (see...). Figure 2 That is, the upper plate 32 has an upward trend from the inside to the outside, that is, it is uphill from the inside to the outside, which is conducive to the exhaust of high-temperature flue gas from between the energy-concentrating plate 3 and the cookware.

[0083] like Figure 9 As shown, the burner 2 is provided with a flame outlet 200. Based on this, it should be noted that the burner 2 provided in this application includes a flame distributor 21 and a flame cover 22, as well as a burner head 2100 located below the flame distributor 21. The flame outlet 200 is opened on the flame cover 22.

[0084] The burner head 2100 has a mixing chamber (not shown in the figure) inside, and the burner distributor 21 has an open gas passage 210 inside, which is connected to the mixing chamber. Gas and primary air are mixed in the mixing chamber inside the burner head 2100 to form a gas mixture. This gas mixture further flows into the gas passage 210 of the burner distributor 21 for further mixing. A flame cap 22 is placed over the opening of the burner distributor 21. The flame cap 22 has the aforementioned flame outlet 200, which is connected to the gas passage 210. The gas mixture within the gas passage 210 can flow out from the flame outlet 200 and be ignited to form a flame.

[0085] In this case, such as Figure 10 As shown, the distance between the flame outlet 200 and the stove body 1 is defined as the first distance H1, and the distance between the end of the upper plate 32 near the burner 2 and the stove body 1 is defined as the second distance H2. The second distance H2 is less than the first distance H1.

[0086] This ensures that the flame generated by the combustion gas of the burner 2 at the flame outlet 200 is located in the area above the inner ring of the energy-concentrating disk 3, thereby ensuring that the energy-concentrating disk 3 can wrap the flame as much as possible inside it, reducing the flame's outward radiation and convection with the surrounding air, and reducing the loss of flame heat.

[0087] In some embodiments of this application, the second opening 302 is located at or above the middle of the outer sidewall (second sidewall 312) of the energy-concentrating disk 3. That is, the second opening 302 is located at the end of the second sidewall 312 away from the bottom wall 313.

[0088] The second opening 302 is located on the side of the second sidewall 312 away from 313, that is, the second opening 302 is located on at least the upper half of the second sidewall 312. For example, as Figure 11 As shown, the second opening 302 is located at approximately the highest point of the second sidewall 312.

[0089] It should be noted that the burner 2 burns the gas to produce a flame, which raises the temperature of the air near the burner. Understandably, as the air temperature rises, its density decreases, causing it to rise. This heated air (which may contain incompletely burned high-temperature flue gas) will flow along the gap between the upper plate 32 of the energy-concentrating plate 3 and the cookware, and then flow out to the periphery of the energy-concentrating plate 3. This heated air can heat the air near the upper part of the energy-concentrating plate 3.

[0090] In this way, when the second opening 302 is located at the end of the second side wall away from the bottom wall 313, the air entering the air chamber 300 through the second opening 302 is air with a relatively high initial temperature. This higher-temperature air, when supplied to the burner 2, is more conducive to the combustion of the gas. In addition, this part of the air may contain high-temperature flue gas that has not been fully burned, which can be reused to a certain extent, thereby improving the utilization rate of the gas and ensuring full utilization of resources.

[0091] For ease of explanation, it is specified that the outer wall 312 of the energy-concentrating plate 3 has a first end 3121 and a second end 3122 that are arranged opposite to each other, with the first end 3121 being farther away from the stove body 1 than the second end 3122.

[0092] Based on this, such as Figure 12As shown, along the direction from the first end 3121 to the second end 3122, the second opening 302 is close to the first end 3121, and the second opening 302 is located at one-half of the outer sidewall (second sidewall 312) of the energy-concentrating disk 3.

[0093] It should be noted that the half-height of the second sidewall refers to the point along the extension direction of the second sidewall 312, from the first end 3121 to the second end 3122, at the half-height of the second sidewall.

[0094] For example Figure 13 As shown, along the direction from the first end 3121 to the second end 3122, the second opening 302 is close to the first end 3121, and the second opening 302 is located at one-third of the outer sidewall (second sidewall 312) of the energy-concentrating disk 3.

[0095] It should be noted that one-third of the height of the second sidewall refers to the point one-third of the second sidewall extending from the first end 3121 to the second end 3122 along the extension direction of the second sidewall 312.

[0096] In this way, when the second opening 302 is located at the end of the second side wall away from the bottom wall 313, the air entering the air cavity 300 through the second opening 302 is air with a relatively high initial temperature. The high-temperature air is supplied to the burner 2, which is more conducive to the combustion of the gas.

[0097] In some embodiments of this application, the energy-concentrating disc 3 includes a lower disc 31, which is annular and placed on the stove body 1, surrounding the outer periphery of the burner 2. The energy-concentrating disc 3 also includes an upper disc 32, which is annular and located on the side of the lower disc 31 away from the stove body 1. The upper disc 32 is connected to the lower disc 31, and an air cavity 300 is formed between the upper disc 32 and the lower disc 31.

[0098] Based on this, such as Figure 14 As shown, the energy-concentrating disk 3 also includes a support leg 23. The upper disk body 32 is provided with a first mounting hole 320, the support leg 23 is disposed in the first mounting hole 320, and the support leg 23 is connected to the upper disk body 32.

[0099] In this case, such as Figure 15 As shown, the lower plate 31 is provided with a first clearance hole 310, which is opposite to the first mounting hole 320. The aforementioned support leg 23 is also inserted into the first clearance hole 310, and there is a gap between the peripheral wall of the support leg 23 and the inner peripheral wall of the first clearance hole 310.

[0100] In this case, to ensure the relative positional stability between the support leg 23 and the lower plate 31, the support leg 23 can have only one outer side wall welded to one inner peripheral wall of the first clearance hole 310 of the lower plate 31, while the other side walls are spaced apart. This ensures a stable and reliable connection between the support leg 23 and the lower plate 31, while also reducing the contact area between the support leg 23 and the lower plate 31, thus reducing heat loss.

[0101] It should be noted that since the end of the support leg 23 connected to the upper plate 32 is directly exposed to the surrounding flame, it can absorb heat and conduct the heat to other parts in contact with it, or radiate it to the surrounding air. Therefore, the gap between the peripheral wall of the support leg 23 and the inner peripheral wall of the first clearance hole 310 can reduce the conduction of heat to the lower plate 31 through the support leg 23, thereby reducing heat loss.

[0102] In some embodiments, the gap between the peripheral wall of the support leg 23 and the inner peripheral wall of the first clearance hole 310 can be U-shaped, that is, one peripheral wall surface of the support leg 23 contacts one inner peripheral wall surface of the first clearance hole 310. Increasing the contact between the support leg 23 and the lower plate 31 can improve the stability of the support leg 23.

[0103] In some embodiments, the gap between the peripheral wall of the support leg 23 and the inner peripheral wall of the first clearance hole 310 can also be annular, that is, the peripheral wall of the support leg 23 and the inner peripheral wall of the first clearance hole 310 do not contact each other at all. In this way, the heat conducted from the support leg 23 to the lower plate 31 can be greatly reduced.

[0104] Based on this, one end of the support leg 23 contacts the stove body, and the other end can contact the cookware to provide support for the cookware, so that the cookware can be placed above the burner 2 and heated by the flame generated by the combustion gas of the burner.

[0105] It should be noted that the number of the aforementioned support legs 23 can be multiple, for example, four support legs 23. The four support legs 23 are spaced apart around the circumference of the energy-concentrating plate 3. Correspondingly, the number of first mounting holes 320 opened on the upper plate body 32 is also four, with one first mounting hole 320 corresponding to one support leg 23. In this way, multiple support legs 23 can provide more stable support for the energy-concentrating plate 3 and the cookware placed on the support legs 23.

[0106] like Figure 16 As shown, in some embodiments of this application, the energy-concentrating disk 3 provided in this application further includes a heat insulation plate 24, which is annular. The heat insulation plate 24 is located between the upper disk body 32 and the lower disk body 31, that is, in the air cavity 300.

[0107] See also Figure 17The heat insulation plate 24 is provided with a second clearance hole 240, which is opposite to the first mounting hole 320 provided on the upper plate 32. Based on this, the support leg 23 is also inserted into the second clearance hole 240, and there is a gap between the peripheral wall of the support leg 23 and the inner peripheral wall of the second clearance hole 240.

[0108] This prevents the support leg 23 from contacting the heat insulation plate 24, thereby preventing the support leg 23 from conducting heat to the heat insulation plate 24.

[0109] It should be noted that the aforementioned heat insulation plate 24 is typically made of a smooth and flat surface, such as smooth stainless steel. The heat insulation plate made of smooth stainless steel can effectively reflect the heat conducted through the upper plate 32 to the air cavity 300, reducing the further conduction of heat to the lower plate 31, thereby reducing the further loss of heat to the surrounding air through the lower plate 31 and improving the heat insulation capacity of the energy-concentrating plate 3.

[0110] Furthermore, the heat insulation plate 24 disposed in the air cavity 300 can divide the air cavity 300 into two sub-cavities. For example, the first sub-cavity 3001 and the second sub-cavity 3002 (see Figure 16 Clearly, the volumes of the first sub-cavity 3001 and the second sub-cavity 3002 are both smaller than the volume of the air cavity 300. Understandably, the flow or convection of air is reduced in a relatively small space, while the air in the air cavity 300 and the first and second sub-cavities 3001 and 3002 separated by the insulation plate 24 primarily undergoes heat exchange through convection.

[0111] In this way, by setting the heat insulation plate 24 to divide the air cavity 300 into a first sub-cavity 3001 and a second sub-cavity 3002 with relatively small volumes, the convection of air can be weakened, thereby hindering the air in the first sub-cavity 3001 and the second sub-cavity 3002 from heat exchange through convection. This makes it difficult for the heat in the first sub-cavity 3001 and the second sub-cavity 3002 to diffuse further, thereby slowing down the outward radiation.

[0112] For example, the heat from the flame radiates directly onto the upper plate 32, and then is conducted through the upper plate 32 to the air inside the first sub-cavity 3001. Since the first sub-cavity 3001 is relatively small, the convection of the air inside it is weak. The air in the first sub-cavity 3001 that is relatively close to the upper plate 32 experiences the temperature increase first, and then the heat is gradually conducted to the air relatively far from the upper plate 32. This slows down the temperature rise of the air inside the first sub-cavity 3001, thus slowing down heat conduction. The process is similar when the air in the first sub-cavity 3001 is conducted to the second sub-cavity 3002 through the heat insulation plate 24, and will not be described further here.

[0113] Furthermore, in some embodiments, the volume of the first sub-cavity 3001 can be smaller than the volume of the second sub-cavity 3002. This results in the first sub-cavity 3001, which is closer to the upper plate 32, having a smaller volume and poorer airflow within it, making it less conducive to uniform heat distribution. This further slows down heat conduction to the second sub-cavity 3002.

[0114] In summary, the heat insulation plate 24 can reduce heat loss through the energy-concentrating disk 3 by reflecting heat and weakening convection, thus slowing down heat conduction and reducing heat loss. It should be noted that the heat insulation plate 24 can be connected to the energy-concentrating disk 3 by welding, and the weld veins left by the welding allow for a gap between the heat insulation plate 24 and the energy-concentrating disk 3, thereby ensuring that the first opening 301, the air cavity 300, and the second opening 302 are interconnected.

[0115] like Figure 17 As shown, in some embodiments of this application, the inner side of the heat insulation plate 24 is provided with a first connecting protrusion 241, which is connected to one of the upper plate body 32 or the lower plate body 31 of the energy-concentrating plate 3. The outer side of the heat insulation plate 24 is provided with a second connecting protrusion 242, which is connected to one of the upper plate body 32 or the lower plate body 31.

[0116] In this way, by connecting the first connecting protrusion 241 and the second connecting protrusion 242 to the energy-concentrating plate 3, the contact area between the heat insulation plate 24 and the energy-concentrating plate 3 can be reduced, thereby reducing the heat conducted from the energy-concentrating plate 3 to the heat insulation plate 24 and improving the heat insulation effect of the energy-concentrating plate 3.

[0117] Furthermore, it should be noted that when the first connecting protrusion 241 and the second protrusion 242 are connected to the energy-concentrating disk 3, both protrusions extend beyond the heat insulation plate 24. The first connecting protrusion 241 protrudes radially towards the axis of the heat insulation plate 24, while the second connecting protrusion 242 protrudes radially away from the axis of the heat insulation plate 24. This creates gaps between the outer and inner sides of the heat insulation plate and the energy-concentrating disk 3, ensuring communication between the first opening 301, the air cavity 300, and the second opening 302, thus enabling the replenishment of secondary air.

[0118] Based on this, in some embodiments of this application, the first connecting protrusion 241 is connected to the lower plate body 31, and the second connecting protrusion 242 is connected to the lower plate body 31.

[0119] Since the upper plate 32 faces the flame directly, it is directly exposed to flame radiation and therefore has a higher temperature. Therefore, connecting the first connecting protrusion 241 and the second connecting protrusion 242 of the heat insulation plate 24 to the lower plate 31 reduces the amount of heat conducted to the heat insulation plate 24.

[0120] In some embodiments, the number of heat insulation plates 24 can be multiple, and the multiple heat insulation plates 24 are all disposed in the air cavity 300, and there are gaps between the multiple heat insulation plates 24.

[0121] Within a certain range, multiple heat insulation plates 24 can reflect the air multiple times and divide the air cavity 300 into more cavities, further reducing convection and thus improving the overall heat insulation effect of the energy-concentrating plate 3.

[0122] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0123] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A gas stove, characterized in that, include: stove body; A burner, wherein the burner is mounted on the stove body; The energy-concentrating plate is ring-shaped and surrounds the outer periphery of the burner. There is a first gap between the inner sidewall of the energy-concentrating plate and the burner, and a second gap between the energy-concentrating plate and the stove body. The first gap and the second gap are in communication. The energy-concentrating disk has an air cavity inside its body, and the inner sidewall of the energy-concentrating disk has a first opening that communicates with the first gap and the air cavity. The outer wall of the energy-concentrating disk is provided with a second opening, which communicates with the air cavity.

2. The gas stove according to claim 1, characterized in that, The inner wall of the energy-concentrating plate has a first region. Along the central axis of the energy-concentrating plate, from the end of the first region closer to the stove body to the end of the first region away from the stove body, the distance between the first region and the central axis of the energy-concentrating plate gradually increases. The first opening is located in the first region.

3. The gas stove according to claim 2, characterized in that, The inner sidewall includes an inclined surface, which extends along the central axis of the energy-concentrating disk from one end of the inclined surface near the stove body to the other end of the inclined surface away from the stove body. The distance between the inclined surface and the central axis of the energy-concentrating disk gradually increases, and the inclined surface forms the first region. Alternatively, the inner wall includes an arc-shaped surface, which includes a windward side and a leeward side. Along the central axis of the energy-concentrating plate, from the end of the first region closer to the stove body to the end of the first region farther from the stove body, the distance between the windward side and the central axis of the energy-concentrating plate gradually decreases, and the distance between the leeward side and the central axis of the energy-concentrating plate gradually increases. The leeward side is farther from the stove body than the windward side, and the leeward side forms the first region.

4. The gas stove according to claim 1, characterized in that, The second opening is located at or above the middle of the outer side wall of the energy-concentrating disk.

5. The gas stove according to claim 4, characterized in that, The outer wall of the energy-concentrating plate has a first end and a second end disposed opposite to each other, the first end being farther away from the stove body than the second end; Along the direction from the first end to the second end, the second opening is close to the first end and is located at halfway along the outer side wall of the energy-concentrating disk.

6. The gas stove according to claim 4, characterized in that, The outer wall of the energy-concentrating plate has a first end and a second end disposed opposite to each other, the first end being farther away from the stove body than the second end; Along the direction from the first end to the second end, the second opening is close to the first end and is located at one-third of the outer wall of the energy-concentrating disk.

7. The gas stove according to claim 1, characterized in that, The burner is provided with a flame outlet, and the distance between the flame outlet and the stove body is a first distance; The distance between the end of the upper plate near the burner and the stove body is the second distance; Wherein, the second distance is less than the first distance.

8. The gas stove according to claim 2, characterized in that, The energy-concentrating disk also includes: The lower plate is ring-shaped and is placed on the stove body, and is arranged around the outer periphery of the burner; An upper plate, the upper plate being annular in shape, is located on the side of the lower plate away from the stove body, and is connected to the lower plate, forming the air cavity between the upper plate and the lower plate; and, Support legs; The upper plate is provided with a first mounting hole, the support leg is disposed in the first mounting hole, and the support leg is connected to the upper plate; The lower plate is provided with a first clearance hole, which is opposite to the first mounting hole. The support leg passes through the first clearance hole, and there is a gap between the peripheral wall of the support leg and the inner peripheral wall of the first clearance hole.

9. The gas stove according to claim 8, characterized in that, The energy-concentrating disk also includes: A heat insulation plate, the heat insulation plate being annular, the heat insulation plate being located within the air cavity, the heat insulation plate dividing the air cavity into a first sub-cavity and a second sub-cavity; The heat insulation plate is provided with a second clearance hole, which is positioned opposite to the first mounting hole. The support leg is also inserted into the second clearance hole, and there is a gap between the peripheral wall of the support leg and the inner peripheral wall of the second clearance hole.

10. The gas stove according to claim 8, characterized in that, The heat insulation plate has a first connecting protrusion on its inner side, and the first connecting protrusion is connected to one of the upper plate or the lower plate. The heat insulation plate has a second connecting protrusion on its outer side, and the second connecting protrusion is connected to one of the upper plate or the lower plate.

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