Combustion module of cooking equipment and cooking equipment

Abstract

The invention discloses a combustion module of cooking equipment and the cooking equipment, and relates to the field of household appliances. The combustion module comprises a combustion box, and the combustion box is provided with an air inlet and a smoke outlet; the combustor comprises a fire grate located between the air inlet and the smoke outlet, the combustor is further provided with a mixed gas inlet communicated with the fire grate, and the mixed gas inlet is arranged close to the air inlet; the gas supply assembly comprises a nozzle and a fan, at least part of the nozzle is arranged in the combustion box and used for spraying gas to the mixed gas inlet, and the fan is used for blowing air into the combustion box from the air inlet; and the speed regulating plate is located in the combustion box, at least part of the speed regulating plate is located between the nozzle and the fan, and the speed regulating plate is provided with a speed regulating hole used for circulating gas. The combustion module is favorable for reducing the gas leakage rate and improving the gas combustion sufficiency and the smoke temperature.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of household appliances, in particular to a combustion module of a cooking equipment and the cooking equipment. BACKGROUND

[0002] With the development of the times, the oven has almost become an indispensable cooking tool in life. From the heat source, the oven is mainly divided into electric oven and gas oven. The electric oven uses electric energy to heat and bake food, which generates heat through electric heating elements and transmits heat to food through convection, radiation and conduction, etc. to realize baking, baking, roasting, etc.

[0003] The gas oven is a cooking equipment that uses natural gas or liquefied petroleum gas as fuel. Compared with the electric oven, the gas oven usually has faster heating speed, more flexible temperature control, and can provide more uniform heat distribution in some cases. However, the internal space of the cooking equipment is limited, so it is necessary to study how to improve the gas combustion efficiency and increase the flue gas temperature. SUMMARY

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a combustion module of a cooking equipment and a cooking equipment, which can improve the gas combustion efficiency.

[0005] The combustion module of the cooking equipment according to the embodiment of the present application comprises: a combustion box having an air inlet and a smoke outlet; a burner comprising a fire row located between the air inlet and the smoke outlet, the burner further having a gas mixing inlet communicating with the fire row, the gas mixing inlet being located close to the air inlet; a gas supply assembly comprising: a nozzle and a fan, the nozzle being at least partially arranged in the combustion box and used for injecting gas into the gas mixing inlet, the fan being used for blowing air from the air inlet into the combustion box; and a speed regulation plate located in the combustion box, at least part of the speed regulation plate being located between the nozzle and the fan, the speed regulation plate being provided with speed regulation holes for gas flow.

[0006] The cooking equipment according to the embodiment of the present application, the fan provides the first air and the second air required for combustion, can preheat part of the air to maintain the ignition temperature, makes it easier to ignite the gas when it is ignited, and can fully mix and burn the gas with air when it is burning. In this way, high-temperature flue gas can be efficiently generated, and the high-temperature flue gas generated by combustion can be used for cooking, drying, etc.

[0007] The combustion module of the present application can adjust the air distribution amount of the air blown by the fan to the nozzle by arranging the speed regulating plate between the nozzle and the fan, and can also lower the air flow rate of the air blown to the nozzle, so as to avoid the air flow rate to the nozzle being too fast and the air flow being too large, to avoid the gas being blown away by a large amount of high-speed air, so as to avoid the situation that the gas cannot form a jet flow, and to avoid the situation that too much gas is blown away without entering the fire row to burn, thereby reducing the gas leakage amount and improving the gas combustion completeness and the flue gas temperature.

[0008] Here, the existence of the speed regulating plate itself produces a certain resistance to air flow, so as to reduce the air flow rate. The speed regulating plate with speed regulating holes can make the air flow, but the size of the holes can adjust the air passing amount, so as to adjust the air distribution ratio.

[0009] In the present application, the speed regulating plate with speed regulating holes is arranged between the nozzle and the fan, which is beneficial to maintaining the stability of the surrounding air field when the gas is injected, and is helpful to the sufficient mixing of air and gas.

[0010] The fan is arranged at the air inlet of the combustion box, and only needs to blow the normal temperature air into the combustion box to give the air enough flow power, and the high temperature flue gas generated also has enough power to flow into the cooking module. In this way, it is not necessary to arrange another fan to blow air at the smoke outlet. The working temperature of the fan can be reduced, and the service life thereof is prolonged. The fan no longer needs to use a high-temperature-resistant fan module, and has a smaller size, higher reliability and lower cost. Moreover, the normal temperature air provided by the fan flows through the combustion box, can flush the wall surface of the combustion box, and lower the temperature of the wall surface to avoid the temperature of the wall surface being too high. Moreover, compared with natural injection, the forced air blowing scheme can adjust the air inlet amount, so that the gas combustion is more complete.

[0011] In some embodiments, the speed regulating plate comprises: a first regulating plate arranged in the combustion box, connected at the air mixing inlet, and separating the burner and the smoke outlet on one side of the first regulating plate, and separating the nozzle and the air inlet on the other side of the first regulating plate; a second regulating plate connected on the first regulating plate and located between the nozzle and the air inlet, wherein the chamber on one side of the second regulating plate is a mixing chamber, and the chamber on the other side of the second regulating plate is an air inlet chamber; The first regulating plate and the second regulating plate are both provided with the speed regulating holes.

[0012] In some specific embodiments, the total area of all the speed regulating holes between the mixing chamber and the air inlet chamber on the second regulating plate is S1, the total area of all the speed regulating holes between the burner and the air inlet chamber on the first regulating plate is S2, and 1 / 2≤S1 / S2≤2 / 3 is satisfied.

[0013] Specifically, the first adjusting plate includes: a first plate segment located on the side of the burner facing the air inlet; a second plate segment connected to the end of the first plate segment adjacent to the nozzle and bent relative to the first plate segment towards the smoke outlet; a third plate segment connected to the end of the second plate segment away from the first plate segment, the first plate segment, the second plate segment, and the third plate segment forming a Z-shape; and a second adjusting plate connected to the second plate segment; wherein the first plate segment and the second adjusting plate, together with the side wall of the combustion chamber, enclose the air intake cavity communicating with the air inlet, and the second plate segment, the third plate segment, and the second adjusting plate, together with the side wall of the combustion chamber, enclose the mixing cavity; The first adjustment plate is a single piece.

[0014] Furthermore, the second adjustment plate is partially stacked on the second plate segment, and the second adjustment plate extends toward the side wall of the combustion chamber where the air inlet is located; the portion of the second adjustment plate that overlaps with the second plate segment does not have the speed adjustment hole, but has a connection interface for connecting to the mixing inlet of the burner.

[0015] Furthermore, the first adjustment plate also includes a fourth plate segment and a fifth plate segment, wherein the fourth plate segment is connected to the end of the first plate segment away from the second plate segment, and the fifth plate segment is connected to the end of the third plate segment away from the second plate segment; the fourth plate segment and the fifth plate segment are engaged on opposite sides of the burner.

[0016] Optionally, the third plate segment is provided with the speed regulating hole.

[0017] In some embodiments, the burner includes: a mixing body connected between the mixing inlet and the burner vent; the combustion module further includes: a flow equalization plate, the flow equalization plate being located inside the combustion chamber and surrounding the outside of the burner, the flow equalization plate separating the burner vent and the smoke outlet on one side and separating the nozzle and the mixing body on the other side, the flow equalization plate being provided with flow equalization holes for gas flow.

[0018] Specifically, at least one of the speed regulating holes has a diameter of D, satisfying: 2mm≤D≤4mm.

[0019] A cooking device according to an embodiment of the present invention includes: a housing; an inner liner disposed within the housing; and a combustion module of the cooking device according to the above embodiment, the combustion module being located within the housing and outside the inner liner, the smoke outlet of the combustion module being connected to the inner liner.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 These are schematic diagrams of the appearance of cooking equipment according to some embodiments of the present invention; Figure 2 This is a side sectional view of a cooking apparatus according to some embodiments of the present invention; Figure 3 This is a front sectional view of a cooking apparatus according to some embodiments of the present invention; Figure 4 This is a perspective view of a combustion module according to some embodiments of the present invention; Figure 5 This is a perspective view of the combustion module of some embodiments of the present invention (with the hidden portion of the housing sidewall). Figure 6 This is a side view of a combustion module according to some embodiments of the present invention; Figure 7 for Figure 6 Cross-sectional view along the KK direction; Figure 8 This is an assembly perspective view of the burner and air guide structure according to some embodiments of the present invention; Figure 9 This is a schematic diagram of the structural principle of a cooking device according to some embodiments of the present invention.

[0022] Figure label: 100 cooking equipment; Cooking Module 10; Cabinet 1; Cooking chamber V1; Smoke inlet chamber V2; Inner liner 2; First flue gas inlet 21; Flue gas outlet 22; Steam inlet 24; Water inlet 25; Windshield 3; Second smoke inlet 31; Combustion module 40; Combustion chamber 41; Air inlet 411; Smoke outlet 412; Burner 42; Mixing inlet 421; Flame burner 424; Mixing body 425; Air supply assembly 43; Nozzle 431; Fan 432; Smoke guide plate 46; Ignition device 47; Speed ​​control plate 48; speed control hole 480; mixing chamber Q1; intake chamber Q2; combustion chamber Q3; preheating chamber Q4; First section 481; First section 481-1; Second section 481-2; Third section 481-3; Fourth section 481-4; Fifth section 481-5; Second adjustment board 482; interface 483; Flow equalization plate 49; Flow equalization orifice 490; Steam heating system 50; Steam generator 51; Water box 52; Door body 61; Inlet valve 62; Washing system 70; spray assembly 71; spray head 711; water collection unit 72; drainage assembly 73; circulation pump 77. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and 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, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] The following is for reference. Figures 1-9 A cooking apparatus 100 and its combustion module 40 according to an embodiment of the present invention are described.

[0027] Reference Figures 1-3The cooking device 100 includes a combustion module 40 and a cooking module 10. Many existing cooking devices 100 include a combustion module 40 for high-temperature cooking. Some cooking devices 100 also include a combustion module 40 for cleaning and drying the cooking module 10. Therefore, the type of heating structure used in the cooking device 100 is not limited, nor is the use of the combustion module 40.

[0028] For example, cooking device 100 can be an oven, which can use the combustion module 40 to generate heat for baking. The oven can also be equipped with a heater, such as a heating rod or heating plate, to heat the cooking cavity V1. Cooking device 100 can be a steam oven, which is equipped with a steam generator 51. The steam generator 51 can use a steam generation principle known in the prior art, such as heating water with a heater to form high-temperature steam. Cooking device 100 can be a microwave oven, which is equipped with a microwave generator. The microwave generator can use a microwave generation principle known in the prior art. Cooking device 100 can also be an air fryer, which heats food by blowing heated air into the cooking cavity V1. Of course, cooking device 100 can also be a multi-functional cooking device, such as a steam oven or a hot air oven / microwave oven. Among the above-mentioned cooking devices 100, cooking can be done using the combustion module 40 or other structures.

[0029] The combustion module 40 of the cooking apparatus 100 according to an embodiment of the present invention, with reference to Figures 4-8 The combustion chamber 41 includes an air inlet 411, a burner 42, and an air supply assembly 43. The air inlet 41 has an air inlet 411 and a flue gas outlet 412. The burner 42 includes a burner 422 located between the air inlet 411 and the flue gas outlet 412. The burner 42 also has a mixing inlet 421 communicating with the burner 422, and the mixing inlet 421 is located close to the air inlet 411. The air supply assembly 43 includes a nozzle 431 and a blower 432. The nozzle 431 is at least partially located within the combustion chamber 41 and is used to inject combustion gas into the mixing inlet 421. The blower 432 is used to blow air from the air inlet 411 into the combustion chamber 41.

[0030] Specifically, the chambers formed inside the combustion chamber 41 can be divided into different chambers according to the distribution of various structures. Among them, the chamber where the burner 424 is located is the combustion chamber Q3. After the gas and air are mixed, they are ignited and fully combusted in the combustion chamber Q3. The part of the burner 42 connecting the gas mixing inlet 421 and the burner 422 is the gas mixing body 425. When the nozzle 431 injects gas towards the gas mixing inlet 421, it carries the surrounding air into the gas mixing inlet 421. The gas mixture is then guided to the burner 424 for combustion through the gas mixing body 425. The interior of the gas mixing body 425 is both a passage for the gas and air and a section of the flow path for mixing. The part of the internal chambers of the combustion chamber 41 outside the gas mixing body 425 is called the preheating chamber Q4. Air flows through the gas mixing body 425 and is preheated by the heat radiated by the gas mixing body 425 and the flame in the combustion chamber Q3.

[0031] Specifically, the blower 432 blows air into the combustion chamber 41 from the air inlet 411. The blown air is divided into at least two streams, which are referred to here as the first stream of air and the second stream of air for ease of description.

[0032] The first stream of air flows towards nozzle 431, which injects combustion gas into the mixing inlet 421 of burner 42. The flowing combustion gas creates an entrainment effect, drawing the air flowing towards nozzle 431 into burner 42. Thus, part of the first stream of air mixes with the combustion gas and enters burner 42. The mixed gas flows to burner 424 and is ignited by igniter 47. The second stream of air flows directly from outside burner 42 (such as the preheating chamber Q4 mentioned above) to burner 424, where it further mixes and burns with unburned combustion gas and its incomplete combustion products.

[0033] This configuration ensures that the second stream of air absorbs heat from the burner 42 and is preheated as it flows through the air preheating chamber Q4. Upon reaching the burner 424, it does not absorb excessive heat, thus preventing a drop in flame temperature. This helps maintain a consistently high flame temperature, allowing for rapid and complete combustion of the gas mixture and reducing the amount of unburned gas emitted.

[0034] The positioning of nozzle 431 and fan 432 ensures that the first stream of air, after being separated, mixes with the combustion gas and is concentrated at burner 424 for ignition. The mixture is essentially ignited by the burner 42. During combustion, it encounters a second stream of air, which increases the oxygen content in the mixture, allowing the combustion gas to combine with sufficient oxygen for complete combustion. This avoids the situation where the unignited gas mixes with a large amount of air, resulting in an excessively large mixture that is difficult to ignite, thus reducing energy consumption.

[0035] Thus, the blower 432 provides the first and second streams of air required for combustion, preheating some of the air to maintain its ignition temperature. This makes the gas more concentrated and easier to ignite during combustion, while ensuring thorough mixing and combustion with the air. This efficiently produces high-temperature flue gas, which can be used for cooking, drying, and other applications.

[0036] In this application, reference is made to Figures 4-8 The combustion module 40 also includes a speed control plate 48, which is located inside the combustion chamber 41. At least a portion of the speed control plate 48 is located between the nozzle 431 and the blower 432. The speed control plate 48 is provided with a speed control hole 480 for the flow of gas.

[0037] It is understood that in this application, the nozzle 431 is spaced a distance from the mixing inlet 421 of the burner 42. This allows the high-speed gas injection from the nozzle 431 into the mixing inlet 421 to entrain a certain amount of air into the burner 42 for mixing. By setting a speed control plate 48 at least between the nozzle 431 and the fan 432, the amount of air distributed from the fan 432 to the nozzle 431 can be adjusted. The air velocity blowing towards the nozzle 431 can also be reduced to avoid excessively fast air velocity and flow rate. This prevents the gas from being dispersed by a large amount of high-speed air, which would prevent the gas from forming a jet stream. This avoids excessive gas being blown away by the air and failing to enter the burner 424 for combustion, thereby reducing gas leakage and improving the completeness of gas combustion and flue gas temperature.

[0038] Here, the presence of the speed control plate 48 itself creates some resistance to airflow, causing the airflow speed to decrease. The speed control plate 48 with the speed control hole 480 allows airflow, but the size of the hole adjusts the amount of air passing through, thereby regulating the air distribution ratio.

[0039] In this application, a speed regulating plate 48 with a speed regulating hole 480 is set between the nozzle 431 and the fan 432, which helps to maintain the stability of the surrounding air field when the gas is injected and helps to fully mix the air and the gas.

[0040] The combustion module 40 of this application places the fan 432 at the air inlet 411 of the combustion chamber 41. Simply blowing ambient air into the combustion chamber 41 provides sufficient airflow, and the generated high-temperature flue gas also has enough power to flow into the cooking module 10. Thus, there is no need to install a separate fan at the smoke outlet 412. This reduces the operating temperature of the fan 432 and extends its service life. The fan 432 no longer requires a high-temperature resistant fan module, resulting in a smaller size, higher reliability, and lower cost. Furthermore, the ambient air flow provided by the fan 432 through the combustion chamber 41 can wash the walls of the combustion chamber 41, cooling the walls and preventing excessive heat. Moreover, compared to natural injection, the forced draft method allows for adjustable airflow, resulting in more complete gas combustion.

[0041] Specifically, the blower 432 is located outside and connected to the combustion chamber 41, and the air outlet of the blower 432 faces the air inlet 411. This makes the airflow path of the blower 432 short, the air resistance relatively small, and the blower 432 can be a smaller model to reduce the overall size of the combustion module 40.

[0042] In some embodiments, such as Figure 7 and Figure 8 As shown, the speed control plate 48 includes a first control plate 481 and a second control plate 482. The first control plate 481 is disposed inside the combustion chamber 41 and is connected to the mixing inlet 421. The first control plate 481 separates the burner 42 and the flue gas outlet 412 on one side of the first control plate 481, and separates the nozzle 431 and the air inlet 411 on the other side of the first control plate 481. The second control plate 482 is connected to the first control plate 481 and is located between the nozzle 431 and the air inlet 411. In the two chambers on both sides of the second control plate 482, the chamber where the nozzle 431 is located is the mixing chamber Q1, and the chamber where the air inlet 411 is located is the air intake chamber Q2.

[0043] Thus, the first adjustment plate 481 roughly divides the combustion chamber 41 in two, and the second adjustment plate 482 roughly divides the intake-side chamber in two. Figure 7 Taking the orientation shown as an example, the first adjustment plate 481 is generally arranged horizontally. The nozzle 431 and air inlet 411 are located below the first adjustment plate 481, and the burner 42 and flue gas outlet 412 are located above the first adjustment plate 481. The second adjustment plate 482 divides the chamber below the first adjustment plate 481 into two parts. The chamber on the left, connected to the air inlet 411, is the air intake chamber Q2, and the chamber on the right, where the nozzle 431 is located, is the mixing chamber Q1.

[0044] This configuration not only isolates the chamber where the nozzle 431 is located, but also allows the speed control plate 48 to protect the stability of the airflow field in the mixing chamber Q1, preventing high-speed airflow from disrupting the airflow distribution and ensuring that the gas can enter the burner 42 in an injection state.

[0045] This configuration isolates the air intake chamber Q2, which is connected to the air inlet 411, to prevent the high-speed air from being directed towards the burner 424. The speed control plate 48 can protect the stability of the airflow field in the combustion chamber Q3, prevent the high-speed airflow from blowing the flame off-center, and ensure that the gas can maintain a state of complete combustion.

[0046] The first regulating plate 481 and the second regulating plate 482 are both provided with speed regulating holes 480. By using the speed regulating holes 480 on the first regulating plate 481 and the second regulating plate 482, not only can the air be slowed down and made uniform, but the air flow distribution ratio to different chambers can also be adjusted by using the hole position and hole area.

[0047] Specifically, one end of the intake chamber Q2 is connected to the air inlet 411, and the other end is connected to the preheating chamber Q4 via the speed regulating hole 480. One side of the mixing chamber Q1 is connected to the intake chamber Q2 via the speed regulating hole 480, and the other side is connected to the mixing inlet 421 of the burner 42. A nozzle 431 is installed inside the mixing chamber Q1. This facilitates the adjustment of the distribution ratio of the first and second streams of air, helping to optimize the combustion state of the burner 424. The air inlet 411 is located in the intake chamber Q2, and the air is then distributed from the intake chamber Q2 to the mixing chamber Q1. The nozzle 431 is located inside the mixing chamber Q1 to prevent a large amount of air blown in from the air inlet 411 from directly blowing into the nozzle 431, thus avoiding gas dispersion and reducing gas leakage.

[0048] The speed control plate 4 is equipped with a first adjustment plate 481 and a second adjustment plate 482. The first adjustment plate 481 has a large overall size and can span the inside of the combustion chamber 41, which facilitates the overall layout. The first adjustment plate 481 can be used as the installation support structure for the second adjustment plate 482 and the burner 42, which facilitates assembly and processing.

[0049] In some specific embodiments, the total area of ​​all speed regulating holes 480 on the second regulating plate 482 between the mixing chamber Q1 and the intake chamber Q2 is S1. The total area of ​​all speed regulating holes 480 on the first regulating plate 481 between the burner 42 and the intake chamber Q2 is S2; satisfying: 1 / 2 ≤ S1 / S2 ≤ 2 / 3.

[0050] It is understandable that some of the second air entering the mixing chamber Q1 is not drawn away and may directly enter the preheating chamber Q4 or overflow. Therefore, controlling the ratio of the total area S1 of all speed regulating holes 480 on the second regulating plate 482 between the mixing chamber Q1 and the intake chamber Q2 to the total area S2 of all speed regulating holes 480 on the first regulating plate 481 between the burner 42 and the intake chamber Q2 is crucial for controlling the air ratio distributed to the preheating chamber Q4 and the mixing chamber Q1.

[0051] If the S1 / S2 ratio is too low, insufficient air will be allocated to nozzle 431, affecting gas mixing. If the S1 / S2 ratio is too high, a large amount of air will be allocated to nozzle 431, resulting in excessive air carrying away gas. By setting the S1 / S2 ratio between 1 / 2 and 2 / 3, a reasonable amount of air can be allocated to burner 42, allowing combustion in burner 424 to reach its optimal state.

[0052] Specifically, at least one speed regulating hole 480 has a diameter of D, satisfying: 2mm ≤ D ≤ 4mm. Further optionally, D can be 2mm, 2.5mm, 2.7mm, 3.1mm, 3.3mm, 3.8mm, 4.0mm, etc. This allows it to be compatible with the small-sized structure of the combustion module 40, achieving the effect of guiding airflow direction, reducing speed, and minimizing noise and vibration.

[0053] Specifically, the first adjustment plate 481 includes a first plate segment 481-1, a second plate segment 481-2, and a third plate segment 481-3. The first plate segment 481-1 is located on the side of the burner 42 facing the air inlet 411. The second plate segment 481-2 is connected to one end of the first plate segment 481-1 adjacent to the nozzle 431 and is bent relative to the first plate segment 481-1 towards the smoke outlet 412. The third plate segment 481-3 is connected to the end of the second plate segment 481-2 away from the first plate segment 481-1. The first plate segment 481-1, the second plate segment 481-2, and the third plate segment 481-3 are generally Z-shaped. The second adjustment plate 482 is connected to the second plate segment 481-2.

[0054] Among them, the first plate segment 481-1 and the second adjusting plate 482, together with the side wall of the combustion box 41, form an air intake chamber Q2 that connects to the air inlet 411, and the second plate segment 481-2, the third plate segment 481-3, and the second adjusting plate 482, together with the side wall of the combustion box 41, form a mixing chamber Q1.

[0055] This setting allows for Figure 7 and Figure 8 Taking the illustrated scheme as an example, the Z-shaped first adjusting plate 481 raises the space of the mixing chamber Q1, allowing sufficient distance between the nozzle 431 and the upper third plate segment 481-3. When the gas is injected, there is enough space above and below the nozzle 431 to form an entrainment air field, facilitating the nozzle 431 to entrain air within its 360-degree angular range. This configuration results in a narrower intake chamber Q2, enabling rapid distribution and uniform speed adjustment of the incoming air. This also frees up a larger preheating chamber Q4, allowing for thorough preheating of the air. In other words, the intake chamber Q2 is set lower, allowing the air blown in by the fan 432 to be quickly buffered and slowed down. The mixing chamber Q1 is set higher, allowing the air entering the mixing chamber Q1 to have sufficient height for slowing down and directional adjustment before being injected into the burner 42 along with the gas.

[0056] Specifically, the first adjusting plate 481 is a single piece, that is, the first plate segment 481-1, the second plate segment 481-2, and the third plate segment 481-3 are integrally formed, which facilitates processing, assembly, and fixing. More specifically, the first adjusting plate 481 is a sheet metal part, which is formed into different plate segments by bending, so that the bending points do not need to be fixed.

[0057] Furthermore, the second adjustment plate 482 is partially stacked on the second plate segment 481-2, and the second adjustment plate 482 extends toward the side wall of the combustion chamber 41 where the air inlet 411 is provided. The portion of the second regulating plate 482 that overlaps with the second plate segment 481-2 does not have a speed regulating hole 480, but has a docking interface 483 for connecting to the gas mixing inlet 421 of the burner 42.

[0058] Specifically, such as Figure 7 and Figure 8 As shown, the first plate segment 481-1 has multiple speed-regulating holes 480, and the second regulating plate 482 also has multiple speed-regulating holes 480. This arrangement serves two purposes: firstly, the speed-regulating holes 480 guide airflow and reduce wind speed. In particular, the multiple speed-regulating holes 480 on the second regulating plate 482 regulate and even out the flow of the second stream of air flowing towards the mixing chamber Q1. This makes it easier for the slowly arriving air to be entrained by the high-speed injected combustion gas, which carries away the air and changes its flow direction. The design of the second regulating plate 482 effectively prevents the possibility of unignited combustion gas leakage. The number, area, and position of the air guide holes on both plates, when properly designed, contribute to more complete combustion.

[0059] exist Figure 7 Taking this solution as an example, the blower 432 blows air upwards at an upward speed, while the gas ejected from the nozzle 431 flows horizontally. The blower 432 produces a relatively fast airflow, and since the two airflows are perpendicular, the gas is inevitably dispersed by the air, preventing it from fully entering the burner along the preset path, resulting in some gas leakage. Adjusting the second regulating plate 482 stabilizes the air field in the mixing chamber Q1, reduces the flow velocity, and makes it easier for the injected gas to change the airflow direction, thus reducing gas leakage. Similarly, the speed regulating hole 480 on the first plate segment 481-1 helps reduce the upward airflow impact on the burner 424, creating a stable combustion field at the burner 424. This improves the completeness of gas combustion, increases heat generation, and enhances cooking efficiency.

[0060] In some alternative embodiments, the central axis of at least a portion of the speed regulating holes 480 on the first plate segment 481-1 intersects the central axis of at least a portion of the speed regulating holes 480 on the second regulating plate 482. Thus, the central axes of the two speed regulating holes 480 on different surfaces lie on the same plane, for example, in... Figure 7In this design, the first plate segment 481-1 is horizontally positioned, and the second regulating plate 482 is vertically positioned. The central axis of the speed regulating hole 480 on the first plate segment 481-1 and the central axis of the speed regulating hole 480 on the second regulating plate 482 are located on the same plane, that is, the central axes of the two holes are located on the same vertical plane. This design allows the boundary layers of the two airflows to interact during flow splitting. As the airflow passes through the guide holes, the wind resistance is reduced, and the airflow is more easily split, which also helps to reduce noise.

[0061] In some alternative embodiments, the central axis of the speed regulating hole 480 of the second regulating plate 482 is parallel to the central axis of the mixing inlet 421 of the burner 42. This arrangement facilitates the airflow to flow in a parallel direction towards the nozzle 431 and the mixing inlet 421 of the burner 42, making it easier for the second stream of air to form an annular airflow surrounding the injected combustion gas jet, thus making it easier for the second stream of air to eventually become parallel to the combustion gas. This helps to increase the amount of air drawn away by the injected combustion gas and improve the degree of air-fuel mixing.

[0062] Furthermore, the first adjustment plate 481 also includes a fourth plate segment 481-4 and a fifth plate segment 481-5. The fourth plate segment 481-4 is connected to the end of the first plate segment 481-1 away from the second plate segment 481-2, and the fifth plate segment 481-5 is connected to the end of the third plate segment 481-3 away from the second plate segment 481-2. The fourth plate segment 481-4 and the fifth plate segment 481-5 are engaged on opposite sides of the burner 42. This encloses the burner 42, not only securing the burner 42 well but also integrating the burner 42 with the first adjustment plate 481 into a single unit.

[0063] Optionally, the third plate segment 481-3 is provided with a speed regulating hole 480. Thus, some of the second stream of air entering the mixing chamber Q1 is not drawn away and flows through the speed regulating hole 480 on the third plate segment 481-3 to the air preheating chamber Q4. Therefore, all speed regulating holes 480 are designed for the airflow through the air preheating chamber Q4.

[0064] In some embodiments, refer to Figure 8 The burner 42 includes a mixing body 425 connected between the mixing inlet 421 and the burner 422.

[0065] like Figure 4 and Figure 5 As shown, the combustion module 40 also includes a flow equalization plate 49, which is located inside the combustion chamber 41 and surrounds the burner 42. The flow equalization plate 49 separates the burner 422 and the flue gas outlet 412 on one side and the nozzle 431 and the gas mixing body 425 on the other side. The flow equalization plate 49 is provided with flow equalization holes 490 for gas flow. In this way, the flow equalization plate 49 can separate the combustion chamber Q3 and the gas preheating chamber Q4, and the flow equalization holes 490 on the flow equalization plate 49 allow air to enter the combustion chamber Q3 at a uniform speed, thereby further improving the completeness of gas combustion.

[0066] In some embodiments, such as Figure 5 As shown, the side wall of the combustion chamber 41 has a smoke outlet 412. The burner 42's burner row 424 and the top wall of the combustion chamber 41 are arranged opposite each other. The combustion module 40 also includes a smoke guide plate 46, which is located above the burner 42 and gradually extends upward toward the smoke outlet 412. This allows the high-temperature flue gas to be smoothly guided to the cooking module 10, reducing flue gas resistance. Furthermore, it prevents the high-temperature flue gas from transferring too much heat to the combustion chamber 41, ensuring that the flue gas carries heat to the cooking module 10.

[0067] Specifically, such as Figure 5 As shown, at least a portion of the smoke guide plate 46 is curved. This makes the wind field more gentle, and reduces noise and vibration.

[0068] In some embodiments, such as Figure 1 , Figure 2 As shown, the cooking module 10 includes: an inner pot 2 and a wind deflector 3. The inner pot 2 defines a cooking cavity V1, and the wind deflector 3 is disposed on the inner pot 2, forming a smoke inlet cavity V2 between the wind deflector 3 and the inner pot 2. The inner pot 2 is provided with a first smoke inlet 21 that connects the smoke inlet cavity V2 and the smoke outlet 412.

[0069] Specifically, refer to Figure 1 and Figure 2 The cooking device 100 also includes a housing 1, with an inner liner 2 housed within the housing 1. The housing 1 serves as the main frame of the cooking device 100, defining its overall appearance, and the inner liner 2 is installed inside. The hollow area of ​​the inner liner 2 forms a cooking cavity V1 for accommodating food and performing cooking tasks. Specifically, the inner liner 2 is entirely embedded inside the housing 1, forming a relatively independent spatial structure with the inner wall of the housing 1. Of course, the cooking device 100 also includes other structures for cooking and heating, such as heaters, steam generators 51, and microwave generators, which can be configured according to known solutions in the prior art.

[0070] In some designs, the combustion module 40 is located inside the inner liner 2, which compresses the effective volume of the cavity and makes it difficult to clean.

[0071] In this application, the combustion module 40 is located inside the housing 1 and outside the inner liner 2.

[0072] A wind deflector 3 is installed on the inner liner 2, and the wind deflector 3 and the inner liner 2 enclose a smoke inlet chamber V2, which serves as an intermediate transition space for smoke delivery. Smoke can enter the smoke inlet chamber V2 sequentially through the first smoke inlet 21 for buffering, and then be evenly delivered into the cooking chamber V1 through the second smoke inlet 31. The high-temperature smoke in the cooking chamber V1 can heat the food, thus achieving cooking.

[0073] In other embodiments, after the cooking equipment 100 is cleaned, some water stains and water droplets will remain on the surface of the inner pot 2. During the cooking process, the cooking cavity V1 will also generate some water vapor due to high-temperature heating (such as steaming, microwaving, stewing, etc.) and it will adhere to the inner wall of the inner pot 2. If these water stains, water droplets, and water vapor are not treated for a long time, they are prone to bacteria growth, mold growth, and odor, which not only affects the flavor of the cooking but also poses a hygiene hazard.

[0074] To solve the above problems, such as Figure 9 As shown, this application proposes to use a large amount of high-temperature flue gas generated after combustion of the combustion module 40 to be introduced into the cooking cavity V1. The high-temperature flue gas evaporates the water droplets and water vapor in the inner pot 2 and carries away the water droplets and water vapor during exhaust, thereby achieving a drying effect.

[0075] The wind deflector 3 in this application helps to slow and guide the flow of high-temperature flue gas. This guidance distributes the flue gas to a suitable location within the cooking cavity V1.

[0076] Specifically, the introduced high-temperature flue gas first enters the flue gas inlet chamber V2 through the first flue gas inlet 21. The flue gas inlet chamber V2 acts as a buffer space to temporarily store the flue gas, preventing a large amount of flue gas from directly rushing into the cooking chamber V1 and causing a rapid increase in the gas pressure inside the cooking chamber V1. Excessive flow of high-temperature flue gas can easily leak from the door 61 of the cooking equipment 100. In other words, the flow-slowing effect of the baffle 3 reduces the flow velocity of the high-temperature flue gas inside the cooking chamber V1, prolonging its flow time within the cooking chamber V1. This helps improve the drying effect and saves energy consumption of the combustion module 40.

[0077] Additionally, a wind deflector 3 is provided, which allows for flexible adjustment of the shape and position of the second smoke inlet 31 on the wind deflector 3. This guides the distribution of high-temperature smoke within the cooking chamber V1, ensuring that the high-temperature smoke heats the cooking chamber V1 more evenly, which helps to ensure that all areas within the cooking chamber V1 are thoroughly dried.

[0078] In some specific embodiments, the cooking device 100 may also include a self-cleaning function. After the inner pot 2 completes the automatic washing program, a large amount of water vapor or water droplets still remain inside. The water droplets remaining on the inner wall of the inner pot 2 or the water vapor in the cooking cavity V1 not only affect the drying speed of the inner pot 2, but may also adhere for a long time, causing water stains or material corrosion on the inner wall. To address this issue, the cooking device 100 introduces external smoke into the cooking cavity V1 through a smoke conveying channel formed by the first smoke inlet 21, the smoke inlet V2, and the second smoke inlet 31. The smoke comes into direct contact with the residual water vapor and water droplets, accelerating moisture evaporation and quickly removing residual moisture from the inner wall of the inner pot 2 and the cooking cavity V1. This keeps the inner pot 2 in a dry state, preventing the formation of mottled marks due to water vapor condensation or damage to the inner wall caused by long-term dampness. This maintains the smoothness and durability of the inner wall of the inner pot 2, ensuring that the self-cleaned inner pot 2 is not only highly clean but also has a dry surface without residue, maintaining the hygienic conditions and appearance quality of the cooking device 100 for long-term use.

[0079] In some embodiments, such as Figure 9 As shown, the cooking appliance 100 includes a washing system 70. The washing system 70 includes a spray assembly 71, a water collection section 72, and a drain assembly 73.

[0080] like Figure 2 As shown, the spray assembly 71 is disposed inside the cooking chamber V1. The spray assembly 71 is used to spray water onto the inner wall and corners of the cooking chamber V1 to rinse away residue.

[0081] Optionally, the spray assembly 71 also includes a pressurization structure or pressurization device. This helps to increase the spray water pressure and enhance the water flow impact force, thereby improving cleaning efficiency.

[0082] The spray assembly 71 may include at least one nozzle. The nozzle may be positioned in multiple areas of the cooking chamber V1, thereby reducing cleaning dead spots and improving the comprehensiveness of cleaning.

[0083] In some technical solutions, the washing system 70 is directly connected to the external tap water supply network, and the spray assembly 71 obtains water flow through the tap water pipe to rinse the inner wall of the cooking chamber V1. The rinsed wastewater is collected by the water collection section 72 and discharged directly to the outside of the cooking equipment 100 through the drainage assembly 73. This solution does not require the use of circulating water, thus eliminating the need for components such as the circulation pump 77 and the water storage tank.

[0084] In some other technical solutions, such as Figure 9 As shown, the washing system 70 includes a circulation pump 77. A spray assembly 71 is connected to the circulation pump 77 via a pipeline, and the inlet of the circulation pump 77 is connected to the water storage tank of the water collection section 72. During washing, the wastewater collected in the water collection section 72 is filtered and then transported by the circulation pump 77 to the spray assembly 71, achieving multiple circulation and spraying of the water flow, thus improving water resource utilization efficiency.

[0085] In addition, the washing system 70 can be simultaneously connected to an external tap water supply network and a circulation pump 77. The washing system 70 also includes a switching valve for selecting different water supply sources.

[0086] One end of the drainage assembly 73 is connected to the water collection section 72, and the other end is connected to the outside. During or after the cleaning process, the wastewater generated during the cleaning process is discharged from the water collection section 72 and directly discharged outside the cooking equipment 100, achieving timely and thorough drainage of wastewater. Optionally, the drainage assembly 73 includes a drainage pump.

[0087] The spray assembly 71 includes at least one of a spray head 711 and a spray arm, such as Figure 2 As shown, the spray head 711 is located on the top wall of the inner liner 2, and the spray arm is located on the bottom wall of the inner liner 2.

[0088] According to some alternative embodiments, such as Figure 9 As shown, the cooking appliance 100 also includes a steam heating system 50. The steam heating system 50 includes a steam generator 51 and a water tank 52. The steam generator 51 is located between the housing 1 and the inner liner 2. The water tank 52 is used to store purified water and is connected to the water inlet of the steam generator 51. The inner liner 2 is provided with a steam inlet 24, which is connected to the output of the steam generator 51.

[0089] The cooking device 100 has a steam function. The purified water in the water tank 52 is delivered to the steam generator 51, where it is heated to produce high-temperature steam, which is then injected into the cooking cavity V1 through the steam inlet 24 on the inner liner 2. The steam diffuses evenly within the cavity.

[0090] In addition, the steam function can be used for steam cooking, or it can provide high-temperature steam in the cleaning program to fully penetrate and soften carbonized dirt in the cavity, thus improving the cleaning effect.

[0091] Water tank 52 is used to store clean water supply. It is located near steam generator 51 and connected to the water inlet of steam generator 51 via a pipeline. When steam is needed, clean water is delivered from water tank 52 to steam generator 51, avoiding the use of tap water containing impurities for direct heating, reducing the risk of scaling, and extending the service life of the equipment.

[0092] The water in water tank 52 can be sourced from external tap water or added manually.

[0093] Specifically, the water tank 52 is connected to an external water supply system via a pipe to achieve continuous automatic water replenishment. When connected to an external water supply, the pipe is introduced from outside the housing 1 and connected to the water tank 52. The cooking device 100 may also include a water level sensor and a controller to automatically start and stop replenishing water according to the water level inside the water tank 52, ensuring that the steam generator 51 has a sufficient water source, suitable for long-term or continuous cooking scenarios.

[0094] When using manual water filling, the water filling channel is usually located at the front or side of the cooking equipment 100 and is equipped with a sealing cover. Users can periodically open the cover to add water to the water box 52. The operation is simple and intuitive, and it is easy to clean and prevent leaks.

[0095] Alternatively, the water box 52 is equipped with a water filling channel, through which purified water can be manually injected.

[0096] Specifically, the cooking device 100 also includes a water inlet valve 62, which has a first water outlet connected to the water box 52.

[0097] The inlet valve 62 enables active control of the water supply process, preventing continuous water flow or leakage. The first outlet is specifically connected to the water box 52, allowing precise control over the amount and timing of water entering the water box 52, ensuring stable operation of the steam heating system 50.

[0098] By switching the inlet valve 62 on and off, the system can turn on the water supply as needed based on the actual water level in the water box 52 or cooking requirements. For example, when the water level is lower than the set value, the controller automatically opens the inlet valve 62 to add water; it closes the valve promptly when the upper limit is reached to prevent overflow.

[0099] The first water outlet is dedicated to supplying water to water box 52, separate from other water circuits, ensuring water purity and a clear purpose. This is especially beneficial in devices that integrate both cleaning and steam systems, preventing cross-contamination of water sources between different functional modules.

[0100] Specifically, the inlet valve 62 may also have a second outlet connected to the inner liner 2 to discharge water into the cooking chamber V1.

[0101] According to some alternative embodiments of the present invention, the inner liner 2 is provided with a water inlet 25, which is connected to the second water outlet 62 of the water inlet valve 62.

[0102] Specifically, such as Figure 9 As shown, the inner liner 2 has a flue gas outlet 22, from which the heated flue gas is discharged.

[0103] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0104] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A combustion module of a cooking appliance, characterized in that, The utility model relates to a gas stove, comprising: a combustion box with an air inlet and a smoke outlet; a burner comprising a fire bank between the air inlet and the smoke outlet, the burner further having a mixed gas inlet communicating with the fire bank, the mixed gas inlet being arranged close to the air inlet; a gas supply assembly comprising: a nozzle arranged at least partially in the combustion box and used for injecting gas into the mixed gas inlet; a fan used for blowing air from the air inlet into the combustion box; a speed regulation plate arranged in the combustion box, at least a part of the speed regulation plate being between the nozzle and the fan, the speed regulation plate being provided with speed regulation holes for the flow of gas.

2. The combustion module of a cooking appliance according to claim 1, characterized in that, The speed regulation plate comprises: a first speed regulation plate arranged in the combustion box, the first speed regulation plate being connected at the mixed gas inlet and separating the burner and the smoke outlet on one side of the first speed regulation plate and separating the nozzle and the air inlet on the other side of the first speed regulation plate; a second speed regulation plate connected to the first speed regulation plate and arranged between the nozzle and the air inlet, the two side chambers of the second speed regulation plate being a mixed chamber where the nozzle is arranged and an air inlet chamber where the air inlet is arranged; the speed regulation holes are arranged on both the first speed regulation plate and the second speed regulation plate.

3. The combustion module of a cooking appliance according to claim 2, characterized in that, The total area of all the speed regulation holes on the second speed regulation plate between the mixed chamber and the air inlet chamber is S1; the total area of all the speed regulation holes on the first speed regulation plate between the burner and the air inlet chamber is S2; 1 / 2≤S1 / S2≤2 / 3 is satisfied.

4. The combustion module of a cooking appliance according to claim 2, characterized in that, The first speed regulation plate comprises: a first plate segment arranged on the side of the burner facing the air inlet; a second plate segment connected to one end of the first plate segment adjacent to the nozzle and arranged in a direction opposite to the first plate segment and facing the smoke outlet; a third plate segment connected to the other end of the second plate segment away from the first plate segment, the first plate segment, the second plate segment and the third plate segment being Z-shaped as a whole; the second speed regulation plate is connected to the second plate segment; wherein the first plate segment, the second speed regulation plate and the side wall of the combustion box enclose the air inlet chamber, and the second plate segment, the third plate segment and the second speed regulation plate and the side wall of the combustion box enclose the mixed chamber; the first speed regulation plate is an integral piece.

5. The combustion module of a cooking appliance according to claim 4, characterized in that, the second speed regulation plate is partially overlapped on the second plate segment, and the second speed regulation plate extends towards the side wall of the combustion box where the air inlet is arranged; neither the overlapped part of the second speed regulation plate on the second plate segment nor the second speed regulation plate is provided with the speed regulation holes, and an abutting port for abutting the mixed gas inlet of the burner is arranged.

6. The combustion module of a cooking appliance according to claim 4, characterized in that, The first speed regulation plate further comprises a fourth plate segment connected to the other end of the first plate segment away from the second plate segment and a fifth plate segment connected to the other end of the third plate segment away from the second plate segment; the fourth plate segment and the fifth plate segment are clamped on the opposite sides of the burner.

7. The combustion module of a cooking appliance according to claim 4, characterized in that, the speed regulation holes are arranged on the third plate segment.

8. The combustion module of a cooking appliance according to any one of claims 1-7, characterized in that, The burner comprises a gas mixing body connected between the gas mixing inlet and the fire row; The combustion module further comprises a flow equalizing plate located inside the combustion box and surrounding the outside of the burner, the flow equalizing plate separates the fire row and the smoke outlet on one side and separates the nozzle and the gas mixing body on the other side, and the flow equalizing plate is provided with flow equalizing holes for gas flow.

9. The combustion module of a cooking appliance according to any one of claims 1-7, characterized in that, The diameter of at least one of the speed regulating holes is D, and the following condition is met: 2mm≤D≤4mm.

10. A cooking apparatus, characterized by, It comprises: a box body; an inner container arranged in the box body; a combustion module according to any one of claims 1-9, which is arranged in the box body and outside the inner container, and the smoke outlet of the combustion module is communicated with the inner container.

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