stoves

Abstract

This application provides a stove, relating to the field of household appliance technology. The stove includes: a housing assembly, comprising a panel, a supporting structure on the side of the panel facing away from the inner cavity of the housing assembly, an air outlet on the panel, and an air inlet on the housing assembly; an airflow drive component disposed within the inner cavity of the housing assembly, used to drive airflow from the air inlet to the air outlet; and a heating element disposed within the inner cavity of the housing assembly, located between the airflow drive component and the panel along the airflow path, used to heat the airflow towards the air outlet. This stove utilizes hot air circulation heating, allowing it to operate regardless of the shape or material of the cookware, achieving uniform heating of the bottom and sidewalls of the cookware, and improving heating efficiency.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more particularly to a stove. Background Technology

[0002] Among electric heating appliances, the most common and widespread are induction cookers and ceramic cooktops. Induction cookers have the advantages of high heating efficiency, fast heating speed, and safe use, while ceramic cooktops can heat a variety of cookware.

[0003] However, traditional induction cookers can only heat cookware made of ferromagnetic materials with a flat bottom. Although traditional ceramic cookers can heat a variety of cookware, the heating method is direct conduction heating, and usually only the part of the pot bottom that is in contact with the control panel can be effectively heated, resulting in low heating efficiency.

[0004] It is evident that traditional electric heating appliances are usually unable to effectively heat a large area of ​​a pot with a curved bottom, thus affecting heating efficiency. Utility Model Content

[0005] In view of the above problems, this application provides a stove that uses hot air heating so that the stove is not limited by the shape or material of the pot, and achieves uniform heating of the bottom and side walls of the pot, thereby improving heating efficiency.

[0006] This application provides a stove, comprising: a shell assembly, an airflow drive component, and a heating element. The shell assembly includes a panel, a supporting structure on the side of the panel facing away from the inner cavity of the shell assembly, an air outlet on the panel, and an air inlet on the shell assembly. The airflow drive component is disposed in the inner cavity of the shell assembly and is used to drive airflow from the air inlet to the air outlet. The heating element is disposed in the inner cavity of the shell assembly, and is located between the airflow drive component and the panel in the airflow path. The heating element is used to heat the airflow flowing towards the air outlet.

[0007] By guiding airflow through the heating element and then expelling it through the air outlet, the airflow achieves three-dimensional heating of non-planar cookware. The hot airflow can diffuse along the curvature of the bottom of the pot to the side wall area, achieving uniform heating of the bottom and side walls of the cookware. In addition, the support structure's design of suspending the cookware maintains a distance between the cookware and the panel, optimizing the heat convection efficiency. Heating with hot air makes the stove not limited by the shape or material of the cookware, thus improving heating efficiency.

[0008] In one possible implementation, the heating element is provided with a plurality of air passage holes, and the heating element heats the airflow as the airflow passes through the air passage holes.

[0009] When the airflow drive is activated, external air enters the inner cavity of the housing assembly through the air inlet and flows towards the heating element under the guidance of the airflow drive. As the airflow passes through the air passages on the surface of the heating element, it makes full contact with the heating element and is heated. The heated airflow is then discharged through the air outlets on the panel, forming a uniformly distributed hot air field, thereby heating the bottom of the cookware. In this process, the design of the air passages allows the airflow to penetrate the interior of the heating element, avoiding problems such as localized overheating or uneven heat distribution caused by airflow only flowing along the surface.

[0010] In one possible implementation, the stove further includes: a heat insulation element disposed in the inner cavity of the housing assembly, the heat insulation element including a pad body disposed on the side of the heating element opposite to the panel, the pad body having ventilation holes, and airflow adapted to flow from the underside of the pad body through the ventilation holes to the side of the heating element.

[0011] By setting up heat insulation components to achieve enclosed heat insulation of the heating element, the heating area is isolated from the internal space of the equipment, reducing ineffective heat loss and avoiding thermal damage to internal components from high temperatures, thus extending the service life of the stove. In addition, it also enables the heat generated by the heating element to be concentrated and directed to the air outlet of the panel, improving the heating efficiency of the hot airflow on the cookware.

[0012] In one possible implementation, the heat insulation element further includes a ring rib, which is disposed on the side of the pad body facing the heating element and surrounds the periphery of the heating element, with the top of the ring rib being higher than the upper surface of the heating element.

[0013] By combining the pad body with the ring ribs, double heat insulation is achieved for the heating element. This not only blocks the downward conduction of heat but also restricts the lateral diffusion of hot airflow, resulting in a double improvement in thermal efficiency. This design effectively reduces the temperature at the bottom of the shell, avoids heat loss in non-heating areas, and enhances the uniformity of hot airflow coverage on the bottom of the cookware.

[0014] In one possible implementation, the height of the support structure is 1mm-20mm.

[0015] This height range ensures effective convection space between the cookware and the stove, while preventing instability caused by excessive height. By optimizing the support height range, the heating stability of flat cookware is preserved, while providing ample thermal convection space for curved cookware, allowing hot airflow to flow along the curved surface of the pot bottom, achieving uniform heating.

[0016] In one possible implementation, the panel includes a heating zone for heating a cookware, the heating element is opposite to the heating zone, the support structure is evenly distributed circumferentially along the heating zone, and the air vents are arranged in an array in the heating zone.

[0017] The heating zone is heated by the hot airflow generated by the heating element. The evenly distributed support structure creates a uniform gap between the cookware and the cooktop. An array of air vents delivers the heated airflow to the bottom of the cookware at uniform pressure. As the airflow exits the vents, it diffuses along the bottom surface of the cookware and forms a circulation path through the gaps created by the support structure, thus achieving three-dimensional heating of the bottom and sidewalls of the cookware. This enables uniform heating of cookware with curved or non-flat bottoms, improves heating efficiency, and expands the effective heating area.

[0018] In one possible implementation, the heating element includes a heating wire and / or a PTC heating element.

[0019] The resistance of the heating wire increases with temperature, creating a self-limiting temperature characteristic. When the temperature of the PTC heating element exceeds the Curie point, its resistivity rises sharply to achieve automatic temperature control. The heating wire can be placed in the airflow channel or heating space. When current passes through it, it generates radiant heat to heat the flowing air. Its spiral structure increases the heat exchange area. The PTC heating element is fixed in the heating space and achieves rapid heating through a combination of a ceramic substrate and metal electrodes. When an abnormal temperature is detected, the material's resistance changes abruptly, cutting off the current. The two heating elements can work together: the heating wire rapidly increases the airflow temperature, while the PTC heating element maintains stable heat output and prevents overheating. The heating wire can be designed in conjunction with the PTC to meet rapid heating requirements and ensure stable heat output through material properties, guaranteeing heating stability.

[0020] In one possible implementation, the inner cavity of the housing assembly is provided with a baffle structure that encloses a heating space, which is open to one side of the panel; the heating element is fixed inside the heating space; or the heating element is fixed above the heating space; the airflow drive is located outside the heating space and is adapted to drive airflow through the heating space to the air outlet.

[0021] The enclosure structure creates a directional hot air channel, concentrating the hot airflow onto the cookware. This achieves directional heat accumulation and transfer, avoiding the problems of low thermal efficiency and uneven heat distribution found in traditional electric heating appliances. Furthermore, the enclosed heating space created by the enclosure structure reduces heat loss to non-working areas, and the open top design allows hot air to directly act on the bottom of cookware of different shapes, improving its adaptability to heating various cookware shapes, including curved ones.

[0022] In one possible implementation, the enclosure structure has ventilation openings, and airflow is adapted to enter the heated space from the ventilation openings.

[0023] The synergistic effect of the ventilation openings and enclosure structure allows hot air to flow along a preset path, enabling cold air to form a directional flow before entering the heated space, creating a stable hot air circulation within the heated space, and avoiding heat loss caused by disordered airflow.

[0024] In one possible implementation, the housing assembly further includes: a housing body having an opening at the top, a panel covering the opening and fixedly connected to the housing body, and a enclosure structure disposed on the bottom wall of the housing body.

[0025] The separate structure design of the shell body and the panel facilitates assembly and maintenance. In addition, the fixed connection between the enclosure structure and the bottom wall enhances the overall structural stability and the stability of the airflow path, reduces heat loss and improves the efficiency of hot air guiding. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 The usage state of the stove according to the embodiments of this application. Figure 1 ;

[0028] Figure 2 The usage state of the stove according to the embodiments of this application. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the structure of the stove according to an embodiment of this application;

[0030] Figure 4 This is a schematic diagram of the internal structure of the stove according to an embodiment of this application. Figure 1 ;

[0031] Figure 5 This is an exploded view of the stove according to an embodiment of this application;

[0032] Figure 6 for Figure 5 A schematic diagram of the structure of the heat insulation component.

[0033] Explanation of reference numerals in the attached figures:

[0034] 10-Cookware;

[0035] 100 - Shell assembly; 101 - Inner cavity; 110 - Panel; 1101 - Heating zone; 111 - Support structure; 112 - Air outlet; 120 - Air inlet; 130 - Enclosure structure; 140 - Shell body; 141 - Top cover; 142 - Base;

[0036] 200 - Airflow drive component; 201 - Impeller; 202 - Flow channel cover;

[0037] 300 - Heating element; 310 - Air vent;

[0038] 400 - Heating space;

[0039] 500 - Thermal insulation component; 510 - Pad body; 511 - Ventilation hole; 520 - Ring reinforcement;

[0040] 600-Motherboard;

[0041] 700 - Display panel. Detailed Implementation

[0042] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0043] Among electric heating appliances, the most common and widespread are induction cookers and ceramic cookers. Induction cookers have the advantages of high heating efficiency, fast heating speed and safe use. However, their disadvantage is that they can only heat cookware made of ferromagnetic materials and cannot heat ceramic pots, earthenware pots, etc., and can only heat the flat bottom of the pot.

[0044] Electric ceramic cooktops use high-temperature resistance wires to generate infrared radiation to heat cookware. Their advantage is that they can heat a variety of cookware. However, their disadvantages include low heating efficiency, slow heating speed, inability to sustain high-power heating, and direct conduction heating. Usually, only the bottom of the pot in contact with the cooktop is effectively heated, while the pot walls are difficult to heat.

[0045] As a result, existing electric heating appliances are usually unable to effectively heat the curved bottom of the pot over a wide area, nor can they heat the side walls of the pot, resulting in low heating efficiency.

[0046] In view of this, this application provides a stove that guides airflow through the heating element and discharges it from the air outlet, thereby achieving three-dimensional heating of non-planar cookware. The hot airflow can diffuse along the curvature of the bottom of the pot to the side wall area, achieving uniform heating of the bottom and side walls of the cookware. In addition, the support structure's suspended design of the cookware maintains a distance between the cookware and the panel, optimizing the heat convection efficiency.

[0047] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0048] The following will combine Figures 1 to 6 The embodiments of this application will be described below.

[0049] The stove in this embodiment includes, but is not limited to, an electric ceramic stove. The stove in this embodiment may include a housing assembly 100, an airflow drive component 200, and a heating element 300.

[0050] refer to Figures 1 to 5 The housing assembly 100 includes a panel 110. A support structure 111 is provided on the side of the panel 110 facing away from the inner cavity 101 of the housing assembly 100. The support structure 111 can be used to support the cookware 10 away from the surface of the panel 110. An air outlet 112 is provided on the panel 110. An air inlet 120 is also provided on the housing assembly 100. An airflow drive 200 is provided in the inner cavity 101 of the housing assembly 100. The airflow drive 200 is used to drive the airflow from the air inlet 120 to the air outlet 112. A heating element 300 is provided in the inner cavity 101 of the housing assembly 100. In the airflow path, the heating element 300 is located between the airflow drive 200 and the panel 110. The heating element 300 is used to heat the airflow flowing towards the air outlet 112.

[0051] The support structure 111 can be a protruding component on the surface of the panel 110, specifically a ceramic or metal bracket, used to create a gap between the bottom of the cookware 10 and the panel 110. An air vent 112 penetrates the panel 110 to guide the heated airflow onto the surface of the cookware 10.

[0052] Optionally, the housing assembly 100 may include a housing body 140, and the air inlet 120 may be a ventilation structure formed on the side wall or bottom of the housing body 140 for introducing external air to form an airflow circulation. For example, the air inlet 120 may be specifically designed as a grille-type or honeycomb-shaped opening.

[0053] The airflow drive 200 can be a mechanical device that generates gas flow. For example, the airflow drive 200 can be implemented using a centrifugal fan or an axial fan to establish a gas pressure difference from the air inlet 120 to the air outlet 112. Optionally, the airflow drive 200 can include a fan impeller 201 and a flow channel cover 202. The flow channel cover 202 and the housing body 140 together define the fan flow channel. The fan impeller 201 is disposed in the fan flow channel, which is connected to the air inlet 120 and the air outlet 112 respectively.

[0054] The heating element 300 can be an element used to heat the airflow. Specifically, it can be implemented using a metal heating wire or the like. It can raise the temperature of the airflow flowing over its surface through resistance heating or radiation heating, thereby increasing the temperature of the airflow medium.

[0055] Specifically, when the airflow drive 200 is activated, external air enters the inner cavity 101 of the housing through the air inlet 120 to form an airflow. This airflow is heated as it flows through the heating element 300, and then discharged upwards through the air outlet 112 of the panel 110. The support structure 111 lifts the cookware 10 into an elevated state, allowing the hot airflow to flow around the bottom and side walls of the cookware 10. The relative position of the heating element 300 and the airflow drive 200 ensures that the airflow flows directly to the air outlet area after heating, preventing heat from accumulating in the inner cavity 101 of the housing.

[0056] As can be seen, the stove provided in this application guides the airflow through the airflow drive component 200, heats it through the heating element 300, and then discharges it from the air outlet 112, realizing three-dimensional heating of the non-planar cookware 10. The hot airflow can diffuse along the curvature of the bottom of the pot to the side wall area, achieving uniform heating of the bottom and side walls of the cookware 10. In addition, the suspended design of the support structure 111 for the cookware 10 keeps the cookware 10 and the panel 110 at a distance, optimizing the heat convection efficiency. The hot air circulation heating makes the stove not limited by the shape or material of the cookware 10, improving the heating efficiency.

[0057] In some embodiments, combined with Figure 1 , Figure 2 and Figure 5 The inner cavity 101 of the housing assembly 100 is provided with a baffle structure 130, which encloses a heating space 400, which is open to the side facing the panel 110. The heating element 300 is fixed inside the heating space 400 or fixed above the heating space 400. The airflow drive element 200 is provided outside the heating space 400 and is adapted to drive the airflow through the heating space 400 to the air outlet 112.

[0058] The enclosure structure 130 can be a physical barrier installed in the inner cavity 101 of the housing to limit the airflow path. Optionally, the enclosure structure 130 can be made of a metal plate or a high-temperature resistant plastic to form an annular wall structure. This structure can confine the heat generated by the heating element 300 within the heating space 400 by forming a semi-enclosed space.

[0059] The design of the heating space 400 being open to the panel 110 allows heat to be directly transferred to the bottom of the cookware 10. The airflow drive component 200 is located outside the heating space 400 to prevent high-temperature airflow from passing directly through the drive component. It can also drive the airflow through the heating space 400 and blow the heat towards the air outlet 112.

[0060] Of course, in some embodiments, the airflow drive component 200 can also be disposed inside the heating space 400 and below the heating element 300. In this case, the air generated by the airflow drive component 200 is directly heated by the heating element 300 and then discharged upward from the air outlet 112, shortening the path of the airflow and reducing the loss of air force.

[0061] Specifically, the enclosure structure 130 forms a space with a top opening in the inner cavity 101 of the housing. The heating element 300 can be fixed in the center of this space by a bracket. When the airflow drive 200 is working, it draws in external air through the air inlet 120 and pushes the airflow into the heating space 400. The airflow fully contacts the heating element 300 in the heating space 400 or above the heating space 400 to complete heat exchange. The heated airflow flows through the top opening of the enclosure structure 130 to the air outlet 112 of the panel 110, forming a directional hot air output path.

[0062] As can be seen, the directional hot air channel formed by the enclosure structure 130 concentrates the hot airflow onto the cookware 10, achieving directional heat accumulation and transfer, and avoiding the problems of low thermal efficiency and uneven heat distribution in traditional electric heating appliances. Furthermore, the enclosed heating space 400 formed by the enclosure structure 130 reduces heat loss to non-working areas, and the open top design of the heating space 400 allows hot air to directly act on the bottom of cookware 10 of different shapes, improving its heating adaptability to various shapes of cookware 10, such as curved cookware 10.

[0063] In some embodiments, combined with Figure 1 , Figure 2 and Figure 5 Ventilation openings are provided on the enclosure structure 130, and airflow is suitable for entering the heating space 400 through the ventilation openings.

[0064] Optionally, the vent is positioned facing the airflow drive 200.

[0065] Optionally, the ventilation openings can be flow channels set on the side wall of the enclosure structure 130, which allows external airflow to be directed into the heated space 400, forming a controllable airflow circulation path.

[0066] Specifically, the heating space 400 formed by the enclosure structure 130 is connected to the air inlet 120 through the ventilation opening. When the airflow drive 200 is running, the external airflow enters from the air inlet 120, flows into the heating space 400 through the ventilation opening, is heated after fully contacting the heating element 300, and is then discharged through the air outlet 112 of the panel 110.

[0067] It is evident that the synergistic effect of the ventilation opening and the enclosure structure 130 enables the hot airflow to flow along a preset path, allowing the cold air to form a directional flow before entering the heating space 400, and forming a stable hot air circulation within the heating space 400, thus avoiding heat loss caused by disordered airflow.

[0068] In some embodiments, combined with Figure 1 and Figure 2 , Figures 4 to 6 The housing assembly 100 also includes a housing body 140, the top of which has an opening, a panel 110 that covers the opening and is fixedly connected to the housing body 140, and a enclosure structure 130 that is disposed on the bottom wall of the housing body 140.

[0069] The shell body 140 can be the main structure that forms the external support of the stove, used to carry the internal components and form an airflow channel. Optionally, the shell body 140 can be made of metal stamping or high-temperature resistant plastic injection molding.

[0070] Optionally, the panel 110 and the shell body 140 can be fixed with screws or snap-fit ​​to ensure that a closed inner cavity 101 is formed between the panel 110 and the shell body 140.

[0071] Optionally, the shell body 140 may include a top cover 141 and a base 142, which can be connected by screws or snap-fit ​​connections.

[0072] Optionally, the enclosure structure 130 can be integrally formed with the bottom of the shell body 140 or connected by welding or riveting to define the position of the heating space 400.

[0073] Specifically, the shell body 140 serves as the basic frame, with its top opening completely covered by the panel 110. The two are fixedly connected to form a sealed inner cavity 101 space. The enclosure structure 130 is set on the bottom wall of the shell body 140 and extends upward to form the boundary of the heating area. Airflow enters from the air inlet 120 at the bottom of the shell body 140, flows through the heating element 300 via the path defined by the enclosure structure 130, and finally exits through the air outlet 112 on the panel 110.

[0074] As can be seen, the split structure design of the shell body 140 and the panel 110 facilitates assembly and maintenance. In addition, the fixed connection between the enclosure structure 130 and the bottom wall enhances the overall structural stability and the stability of the airflow path, reduces heat loss and improves the efficiency of hot air conduction.

[0075] In some embodiments, combined with Figure 4 and Figure 5 The heating element 300 is provided with multiple air passage holes 310, and the heating element 300 heats the airflow when the airflow passes through the air passage holes 310.

[0076] The air passage 310 can be a through hole opened inside the heating element 300. Specifically, it can be implemented by adopting a circular, rectangular or irregular hole structure. The function of the air passage 310 is to allow airflow to penetrate the heating element 300, increase the contact area between the airflow and the heating element 300, thereby improving the heat exchange efficiency.

[0077] The heating element 300 can be an element used to heat the airflow. Specifically, it can be implemented using a metal heating wire or the like. It can raise the temperature of the airflow flowing over its surface through resistance heating or radiation heating, thereby increasing the temperature of the airflow medium.

[0078] Specifically, when the airflow drive 200 is activated, external air enters the inner cavity 101 of the housing assembly 100 through the air inlet 120 and flows towards the heating element 300 under the guidance of the airflow drive 200. When the airflow passes through the air passage 310 on the surface of the heating element 300, it makes full contact with the heating element 300 and is heated. The heated airflow is then discharged through the air outlet 112 on the panel 110, forming a uniformly distributed hot air field, thereby heating the bottom of the cookware 10. In this process, the design of the air passage 310 allows the airflow to penetrate the interior of the heating element 300, avoiding problems such as local overheating or uneven heat distribution caused by the airflow only flowing along the surface.

[0079] In actual operation, the hot air flow rate and temperature distribution can be controlled by adjusting the distribution density or size of the air vents 310.

[0080] The design of the air vent 310 improves the heating speed of the gas. By combining the gas flow with the air vent 310, three-dimensional heating of the bottom and side walls of the pot 10 is achieved. At the same time, it avoids the risk of local overheating that exists in traditional resistance wire heating, and improves the heating uniformity and energy utilization.

[0081] In some embodiments, combined with Figure 1 and Figure 2 , Figure 5 and Figure 6The stove also includes a heat insulation component 500, which is disposed in the inner cavity 101 of the housing assembly 100. The heat insulation component 500 surrounds the heating element 300 to prevent the heat generated by the heating element 300 from spreading to the surroundings.

[0082] The heat insulation component 500 can be a heat-resistant structure made of high-temperature resistant materials, specifically ceramic fiber board or aerogel composite material. The heat insulation component 500 has low thermal conductivity and can prevent heat transfer. Optionally, the heat insulation component 500 can be designed with ventilation holes 511, which are connected to the air inlet 120 and the air outlet 112 to facilitate gas flow.

[0083] Specifically, in the inner cavity 101 of the housing assembly 100, the heat insulation component 500 forms a physical isolation barrier around the installation area of ​​the heating component 300. When the heating component 300 is powered on and generates high temperature, the heat insulation component 500 blocks the heat from being transferred to other areas inside the housing through its low thermal conductivity, while guiding the hot airflow to flow directionally to the air outlet 112 of the panel 110.

[0084] Under the action of the airflow drive component 200, external cold air enters through the air inlet 120, flows through the heating area of ​​the heating component 300 along the channel formed by the heat insulation component 500, and finally carries heat out through the air outlet 112, forming a directional heat circulation path.

[0085] By setting up the heat insulation component 500, the heating element 300 is surrounded and insulated, the heating area is isolated from the internal space of the equipment, which reduces ineffective heat loss and avoids heat damage to internal components by high temperature, thus extending the service life of the stove. In addition, the heat generated by the heating element 300 is concentrated and directed to the air outlet 112 of the panel 110, which improves the heating efficiency of the hot airflow on the cookware 10.

[0086] In some embodiments, combined with Figure 1 and Figure 2 , Figure 5 and Figure 6The inner cavity 101 of the housing assembly 100 is provided with a baffle structure 130, which encloses the heating space 400. The heat insulation member 500 includes a pad body 510 and a ring rib 520. The pad body 510 is located in the heating space 400 and is spaced apart from the bottom wall of the heating space 400. Specifically, the pad body 510 is located on the side of the heating element 300 away from the panel 110. The projection of the pad body 510 in the reference plane coincides with the projection of the heating space 400 in the reference plane. The reference plane is perpendicular to the thickness direction of the housing assembly 100. A vent hole 511 is provided on the pad body 510. The heating element 300 is located on the side of the pad body 510 away from the bottom wall. The airflow is suitable to flow from the lower side of the pad body 510 to the side of the heating element 300 through the vent hole 511. The ring rib 520 is located on the side of the pad body 510 facing the heating element 300 and surrounds the periphery of the heating element 300. The top of the ring rib 520 is higher than the upper surface of the heating element 300.

[0087] The pad body 510 can be a flat plate structure covering the bottom of the heating space 400, which can be made of ceramic fiber board or mica board. It forms a heat insulation layer with the bottom wall to reduce the downward conduction of heat.

[0088] The ventilation hole 511 can be a through hole penetrating the pad body 510 to guide airflow through the heating element 300. Optionally, multiple through holes can be designed, and the multiple through holes can be arranged in a ring array to achieve uniform airflow.

[0089] The ring rib 520 can be an annular protrusion structure surrounding the heating element 300, and can be made of high-temperature resistant silicone or ceramic material to limit the diffusion of high-temperature airflow to the surrounding area.

[0090] Specifically, the pad body 510 is separated from the bottom wall of the heating space 400, and this separation forms a heat insulation cavity, so that the airflow enters the heat insulation cavity from the air inlet 120 and rises vertically through the air vent 511, and is heated in the process of passing through the heating element 300.

[0091] The design of the ring rib 520 and the high-heating element 300 forms a vertical air duct, which forces the hot air to concentrate and flow upward. When the hot air is discharged through the air outlet 112, the constraint of the ring rib 520 concentrates the heat in the bottom area of ​​the pot 10, ensuring heating efficiency.

[0092] The combined structure of the pad body 510 and the ring rib 520 achieves double heat insulation for the heating element 300, which not only blocks the downward conduction of heat, but also restricts the lateral diffusion of hot airflow, thus doubly improving the thermal efficiency. This design effectively reduces the temperature at the bottom of the shell, avoids heat loss in non-heating areas, and enhances the uniformity of hot airflow coverage on the bottom of the cookware 10.

[0093] In some embodiments, the height of the support structure 111 can be 1mm-20mm. Optionally, the height of the support structure 111 can be 1mm, 3mm, 8mm, 10mm, 13mm, 16mm, 18mm, 20mm, etc. The specific design can be selectively chosen according to actual usage requirements, and no restrictions are imposed here.

[0094] Understandably, the height of the support structure 111 determines the distance between the bottom of the cookware 10 and the surface of the panel 110. This height range ensures an effective airflow space between the cookware 10 and the stove, while preventing the cookware 10 from becoming unstable due to excessive height.

[0095] Specifically, when the cookware 10 is placed on top of the support structure 111, an airflow channel is formed between the bottom of the pot and the panel 110. The height of this channel is controlled within a specific range, so that the heated airflow can fully contact the curved surface of the pot bottom without reducing the efficiency of heat convection due to excessive space.

[0096] By optimizing the support height range, the heating stability of the flat cookware 10 is preserved, while providing sufficient airflow space for the curved cookware 10, allowing the high-temperature airflow to flow along the curved surface of the bottom of the pot, thus achieving uniform heating of the cookware 10.

[0097] In some embodiments, combined with Figure 3 and Figure 5 The panel 110 includes a heating zone 1101 for heating the cookware 10, a heating element 300 opposite to the heating zone 1101, a support structure 111 evenly distributed along the circumference of the heating zone 1101, and air outlets 112 arranged in an array in the heating zone 1101.

[0098] The heating element 300 is opposite to the heating zone 1101, meaning that the installation position of the heating element 300 corresponds to the heating zone 1101 in the vertical direction. This ensures that the airflow is guided to the area corresponding to the heating zone 1101 after passing through the heating element 300.

[0099] Optionally, multiple support structures 111 can be arranged at equal intervals around the edge of the heating zone 1101. Specifically, they can be protrusions or support feet to stably support the cookware 10 and form an airflow channel.

[0100] The air vents 112 can be arranged in a regular row and column pattern on the surface of the heating zone 1101. Specifically, they can be round or square holes. Their function is to guide the heated airflow to evenly cover the bottom of the pot 10.

[0101] Specifically, the heating zone 1101 is heated by the hot airflow generated by the heating element 300, the support structure 111 is evenly distributed so that a uniform gap is formed between the cookware 10 and the panel 110, and the array of air outlets 112 delivers the heated airflow to the bottom of the cookware 10 with uniform pressure.

[0102] When the airflow flows out from the air outlet 112, it diffuses along the bottom surface of the cookware 10 and forms a circulation path through the gap formed by the support structure 111, thereby achieving three-dimensional heating of the bottom and side walls of the cookware 10.

[0103] In this way, uniform heating of the cookware 10 with a curved bottom or a non-flat bottom is achieved, heating efficiency is improved, and the effective heating area is expanded.

[0104] In some embodiments, combined with Figure 1 and Figure 2 The heating element 300 may include a heating wire and / or a PTC heating element (a heating element made of semiconductor ceramic material).

[0105] The heating wire can be a metal conductor that generates heat by passing an electric current through a resistive material. Specifically, it can be made into a spiral structure using nickel-chromium alloy or iron-chromium-aluminum alloy. Its resistance value can increase with the temperature, thus forming a self-limiting temperature characteristic.

[0106] PTC heating elements can be sheet-shaped heating elements made of positive temperature coefficient ceramic materials. Specifically, they can be made by sintering barium titanate-based semiconductor ceramics. When the temperature exceeds the Curie point, its resistivity will rise sharply to achieve automatic constant temperature control.

[0107] Specifically, the heating wire can be arranged within the airflow channel or heating space 400. When current passes through it, it generates radiant heat to heat the flowing air, and its spiral structure increases the heat exchange area. The PTC heating element is fixed within the heating space 400 and achieves rapid heating through a combination of a ceramic substrate and metal electrodes. When an abnormal temperature is detected, a sudden change in the material's own resistance can cut off the current. The two heating elements can work together: the heating wire is responsible for rapidly increasing the airflow temperature, while the PTC heating element maintains stable heat output and prevents overheating.

[0108] The heating wire can be designed in conjunction with a PTC to meet the needs of rapid heating, and the material properties can also ensure stable heat output, thus guaranteeing heating stability.

[0109] In some embodiments, combined with Figures 3 to 5The stove may also include a main board 600 and a display board 700, which are mounted on the main body 140 and are communicatively connected. The main board 600 is electrically connected to the heating element 300, and the display board 700 is used to display and adjust stove information. By designing the main board 600 and display board 700, users can adjust the temperature of the heating element 300 and operate it on and off.

[0110] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0111] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0112] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0113] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0114] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A stove, characterized in that, include: A housing assembly, the housing assembly including a panel, a supporting structure provided on the side of the panel opposite to the inner cavity of the housing assembly, an air outlet provided on the panel, and an air inlet provided on the housing assembly; An airflow drive is disposed in the inner cavity of the housing assembly, and the airflow drive is used to drive airflow from the air inlet to the air outlet; A heating element is disposed in the inner cavity of the housing assembly, in the airflow path, the heating element is located between the airflow drive and the panel, and the heating element is used to heat the airflow flowing toward the air outlet.

2. The stove according to claim 1, characterized in that, The heating element is provided with multiple air passage holes, and the heating element heats the airflow when the airflow passes through the air passage holes.

3. The stove according to claim 1, characterized in that, Also includes: A heat insulation component is disposed in the inner cavity of the housing assembly. The heat insulation component includes a pad body, which is disposed on the side of the heating element away from the panel. A vent hole is provided on the pad body, and airflow is adapted to flow from the lower side of the pad body through the vent hole to the side of the heating element.

4. The stove according to claim 3, characterized in that, The heat insulation component also includes a ring rib, which is located on the side of the pad body facing the heating element and surrounds the periphery of the heating element. The top of the ring rib is higher than the upper surface of the heating element.

5. The stove according to claim 1, characterized in that, The height of the support structure is 1mm-20mm.

6. The stove according to claim 1, characterized in that, The panel includes a heating zone, the heating element is opposite to the heating zone, the support structure is evenly distributed along the circumference of the heating zone, and the air outlets are arranged in an array in the heating zone.

7. The stove according to any one of claims 1-6, characterized in that, The heating element includes a heating wire and / or a PTC heating element.

8. The stove according to any one of claims 1-6, characterized in that, The inner cavity of the housing assembly is provided with a baffle structure, which encloses a heating space, and the heating space is open to one side of the panel. The heating element is fixed within the heating space; or the heating element is fixed above the heating space; The airflow drive is located outside the heating space and is adapted to drive the airflow through the heating space to the air outlet.

9. The stove according to claim 8, characterized in that, The enclosure structure has ventilation openings, and airflow is adapted to enter the heating space through the ventilation openings.

10. The stove according to claim 8, characterized in that, The housing assembly also includes: The shell body has an opening at the top, the panel covers the opening and is fixedly connected to the shell body, and the enclosure structure is provided on the bottom wall of the shell body.

Images