Integrated rock plate electric flame stove

CN224694579UActive Publication Date: 2026-08-28GUANGDONG RENJIAN FIREWORKS ELECTRICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521998444.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-17
Publication Date
2026-08-28
Estimated Expiration
2035-09-17

AI Technical Summary

Technical Problem

[0005]为了弥补以上不足,本实用新型提供了一种一体式岩板电焰灶,旨在改善现有技术中密封结构易因部件形变或老化导致缝隙出现汤汁油污渗入机箱内部的问题

Benefits of technology

[0024] 1. In this utility model, the spring inside the fixing sleeve of the plasma head side wall generates elastic force, which drives the pressure plate to continuously squeeze the sealing ring, thereby achieving the effect of keeping the sealing ring tightly attached to the contact surface between the plasma head and the furnace base. This solves the problem that existing traditional sealing structures are prone to leakage of soup and oil into the machine casing due to component deformation or aging. The above structure improves the stability and reliability of the sealing protection of the electric flame stove.

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Abstract

The utility model relates to electric flame range technical field discloses an integral rock plate electric flame range, including rock plate body, the rock plate body bottom is provided with machine case, the rock plate body upper surface is provided with switch, the machine case inside is provided with the hearth, the hearth side wall is provided with the burner, the hearth inside fixedly connected with the plasma head, the plasma head side wall is provided with sealing assembly, the machine case side wall is provided with dustproof component, sealing assembly includes sealing ring, sealing ring side wall sliding connection in plasma head side wall, plasma head side wall fixedly connected with fixed sleeve, the fixed sleeve inside is provided with spring, in the utility model, through the spring in the fixed sleeve of plasma head side wall generates elasticity, drives the pressing plate to extrude sealing ring continuously, thereby reaches the effect that makes sealing ring always close fitting plasma head and the hearth contact surface, improves the stability and reliability of electric flame range sealing protection through above -mentioned structure.
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Description

Technical Field

[0001] This utility model relates to the field of electric flame stove technology, and in particular to an integrated rock slab electric flame stove. Background Technology

[0002] As kitchen appliances evolve towards greater safety, integration, and aesthetics, integrated slab-mounted electric flame cooktops are gradually becoming a significant alternative to traditional gas stoves, combining the durability and beauty of slab countertops with the advantages of open-flame cooking technology. Their core principle is to convert electrical energy into high-temperature plasma to meet the demands of Chinese stir-frying, while leveraging the scratch-resistant, heat-resistant, and easy-to-clean properties of slab material to suit modern kitchen designs and usage scenarios. These products must balance cooking efficiency with safety, especially at the connection between the plasma head and the burner base. Because this area is constantly exposed to high temperatures and easily comes into contact with cooking liquids and grease, the sealing performance directly impacts the lifespan and safety of the device, making it a key focus in the technical design.

[0003] Current integrated slab electric flame stoves typically employ a mechanical structure of "fixed sealing ring + screw tightening" for the sealing structure of the plasma head and burner base. Specifically, an annular groove is usually created on the side wall of the plasma head or the bottom of the burner base. A sealing ring made of a single material is embedded in the groove, and then the plasma head and burner base are directly fixed together with screws. The tightening force of the screws ensures that the sealing ring adheres to the contact surfaces of both, forming a sealing barrier. The technical principle relies on the static friction generated by mechanical compression to maintain a seal, preventing soup and oil from seeping into the interior of the unit through gaps. Simultaneously, the sealing ring must be made of a high-temperature resistant material to withstand the 1200-1500℃ high temperatures generated by the plasma head during operation, preventing the sealing ring from melting or deforming due to high temperatures.

[0004] However, existing sealing structures have significant drawbacks: the plasma head generates continuous high temperatures during operation, causing thermal expansion and contraction deformation between the plasma head and the stove base. Over time, the sealing ring, originally tightened by screws, is prone to gaps due to component deformation. Simultaneously, the sealing ring gradually ages and loses elasticity under high temperatures, further exacerbating these gaps. Once gaps appear, cooking liquids and oils can seep into the casing, contaminating core electrical components such as the motherboard and drivers, and potentially causing short circuits and component damage, severely impacting the stability and safety of the electric flame stove. Therefore, an integrated slab electric flame stove is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an integrated rock slab electric flame stove, which aims to improve the problem in the prior art where the sealing structure is prone to leakage of soup and oil into the machine casing due to component deformation or aging.

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

[0007] An integrated slab electric flame stove includes a slab body, a housing at the bottom of the slab body, a switch on the upper surface of the slab body, a furnace base inside the housing, a burner head on the side wall of the furnace base, a plasma head fixedly connected inside the furnace base, a sealing component on the side wall of the plasma head, and a dustproof component on the side wall of the housing.

[0008] The sealing assembly includes a sealing ring, the sidewall of which is slidably connected to the sidewall of the plasma head. A fixing sleeve is fixedly connected to the sidewall of the plasma head. A spring is provided inside the fixing sleeve. One end of the spring is fixedly connected to the inside of the fixing sleeve, and the other end of the spring is fixedly connected to a pressure plate. The sidewall of the pressure plate is attached to one side of the sealing ring.

[0009] As a further description of the above technical solution:

[0010] The dustproof component includes a dustproof mesh, the sidewall of which is attached to the sidewall of the chassis.

[0011] As a further description of the above technical solution:

[0012] The other side of the sealing ring is attached to the bottom of the furnace base, and the side wall of the pressure plate is slidably connected inside the fixed sleeve.

[0013] As a further description of the above technical solution:

[0014] A pot rack is slidably connected to the surface of the rock slab body, a water tray is provided on the surface of the rock slab body, the water tray is slidably connected to the side wall of the burner head, and a battery and a driver are provided inside the casing.

[0015] As a further description of the above technical solution:

[0016] A motherboard is fixedly connected inside the chassis. A plug-in terminal is fixedly connected to the upper surface of the motherboard. One end of the plug-in terminal is fixedly connected to the bottom of the plasma head. The side wall of the plasma head is slidably connected to the inside of the furnace head. A fan is fixedly connected to the bottom of the furnace base.

[0017] As a further description of the above technical solution:

[0018] A positioning block is fixedly connected to the side wall of the dustproof net, and a magnetic block is provided on the side wall of the positioning block. Both the positioning block and the magnetic block are slidably connected to the inside of the chassis.

[0019] As a further description of the above technical solution:

[0020] The chassis is equipped with a second magnetic block, which is attracted to the first magnetic block.

[0021] As a further description of the above technical solution:

[0022] A protective frame is fixedly connected to the surface of the chassis, and corner protectors are provided at the four corners of the protective frame, which are attached to the four corners of the chassis edge.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the spring inside the fixing sleeve of the plasma head side wall generates elastic force, which drives the pressure plate to continuously squeeze the sealing ring, thereby achieving the effect of keeping the sealing ring tightly attached to the contact surface between the plasma head and the furnace base. This solves the problem that existing traditional sealing structures are prone to leakage of soup and oil into the machine casing due to component deformation or aging. The above structure improves the stability and reliability of the sealing protection of the electric flame stove.

[0025] 2. In this utility model, the magnetic block one on the side wall positioning block of the dustproof net attracts the magnetic block two inside the chassis, causing the dustproof net to be quickly fixed to the side wall of the chassis. At the same time, the protective frame and corner guards on the surface of the chassis form physical protection, thereby achieving the effect of ensuring the air circulation for fan heat dissipation, facilitating regular cleaning of the dustproof net, and buffering external collisions. This solves the problems of cumbersome disassembly and assembly of existing traditional dustproof structures and the easy damage to the chassis and rock slab body due to collisions. The above structure improves the convenience of dustproof maintenance and the overall impact resistance of the electric flame stove.

[0026] 3. In this utility model, the plasma head is permanently locked to the main board by using a plug-in terminal connection and pressing the connection part with screws. At the same time, each wire is locked to the main board with screws, and the burner head and burner base, water tray and burner head are all fixed with screws from top to bottom. This ensures that the connection of each component is stable and the disassembly and assembly directions are uniform. This achieves the effect of quick inspection or replacement of components without complicated disassembly during daily maintenance, solving the problems of cumbersome disassembly and assembly and low maintenance efficiency of existing traditional connection methods. The above structure improves the convenience of maintenance and the stability of component connection of electric flame stove. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of an integrated rock slab electric flame stove proposed in this utility model;

[0028] Figure 2 This is a schematic diagram of the casing of an integrated rock slab electric flame stove proposed in this utility model;

[0029] Figure 3 This is a schematic diagram of the furnace base of an integrated rock slab electric flame stove proposed in this utility model;

[0030] Figure 4 This is a schematic diagram of the plasma head structure of an integrated rock slab electric flame stove proposed in this utility model;

[0031] Figure 5 This is a schematic diagram of the fixing sleeve for an integrated rock slab electric flame stove proposed in this utility model;

[0032] Figure 6 This is a schematic diagram of the internal structure of the casing of an integrated rock slab electric flame stove proposed in this utility model;

[0033] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0034] Legend:

[0035] 1. Sintered stone body; 2. Chassis; 3. Switch; 4. Pot rack; 5. Water tray; 6. Battery; 7. Driver; 8. Mainboard; 9. Burner head; 10. Burner base; 11. Fan; 12. Plasma head; 13. Insert terminal; 14. Fixing sleeve; 15. Pressure plate; 16. Sealing ring; 17. Spring; 18. Protective frame; 19. Dustproof net; 20. Positioning block; 21. Magnetic block one; 22. Magnetic block two. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Reference Figures 1-5This utility model provides an embodiment of an integrated slab electric flame stove, comprising a slab body 1, which is made of natural quartz and feldspar minerals pressed at 1200℃. A housing 2, made of flame-retardant PC material, is located at the bottom of the slab body 1 to house internal electrical components and mechanical structures, providing dust and collision protection. A switch 3 is located on the upper surface of the slab body 1 to receive user commands for starting, stopping, and adjusting the flame. A burner base 10 is located inside the housing 2, with burner heads 9 mounted on the side walls of the burner base 10. A plasma generator is fixedly connected inside the burner base 10. Plasma head 12 is a high-frequency plasma generating component with a built-in electrode group. It is a DL-3000 plasma generator used to convert electrical energy into high-temperature plasma to achieve a stable output of 1200-1500℃ open flame. The side wall of plasma head 12 is equipped with a sealing component to prevent soup and oil from seeping into the inside of the casing 2, thus protecting the internal electrical components. The side wall of casing 2 is equipped with a dustproof component to filter impurities in the air entering casing 2. It works with fan 11 to dissipate heat and ventilate, thus ensuring both heat dissipation efficiency and preventing dust accumulation.

[0038] The sealing assembly includes a sealing ring 16, which is made of fluororubber resistant to 300℃. The sealing ring 16 fills the gap between the plasma head 12 and the furnace base 10. The sidewall of the sealing ring 16 is slidably connected to the sidewall of the plasma head 12, working with the pressure plate 15 to seal and compress, achieving a tight fit and preventing leakage. A fixing sleeve 14, made of brass, is fixedly connected to the sidewall of the plasma head 12. The fixing sleeve 14 accommodates the spring 17 and the pressure plate 15, transmitting elastic force with the spring 17 to ensure stable compression of the sealing ring 16 by the pressure plate 15. The fixing sleeve 14 contains a spring 17, which is a stainless steel compression spring. A spring is used to generate continuous elastic pressure, which drives the pressure plate 15 to move towards the sealing ring 16, so that the sealing ring 16 always fits tightly against the contact surface between the plasma head 12 and the furnace base 10. One end of the spring 17 is fixedly connected to the inside of the fixed sleeve 14, and the other end of the spring 17 is fixedly connected to the pressure plate 15. The pressure plate 15 is a circular metal gasket, which is used to evenly transmit the elastic force of the spring 17 to the sealing ring 16. The side wall of the pressure plate 15 is slidably connected to the inside of the fixed sleeve 14, and works with the fixed sleeve 14 to guide and limit, so as to avoid the pressure plate 15 from shifting and ensure uniform sealing pressure. The other side of the sealing ring 16 is attached to the bottom of the furnace base 10.

[0039] A pot rack 4 is slidably connected to the surface of the sinter slab body 1. The pot rack 4 is made of cast iron and coated with high-temperature resistant and rust-proof paint. It is used to support the pot and adjust its position, and to align the open flame with the burner head 9, so as to ensure that the bottom of the pot is in full contact with the flame and improve the heat efficiency. A water tray 5 is set on the surface of the sinter slab body 1. The water tray 5 is used to collect soup and oil drippings during cooking. The water tray 5 is slidably connected to the side wall of the burner head 9, and can be disassembled and cleaned with the burner head 9. This makes it easy to clean stains regularly and keep the sinter slab body 1 clean. The water tray 5, burner head 9 and burner base 10 are all made of ceramic glaze material to provide insulation, high temperature resistance and non-discoloration. The burner head 9 and burner base 10, and the water tray 5 and burner head 9 are all fixed with screws from top to bottom, which makes it easy to open and clean the inside during daily maintenance.

[0040] The chassis 2 contains a battery 6 and a driver 7. The battery 6 is a rechargeable lithium battery, which is used to provide emergency power or initial startup power in the event of a power failure. It works with the motherboard 8 to switch power supplies, so as to ensure the safe reset of the system in an emergency. The driver 7 is a high-frequency power driver, model KD-5000 high-frequency driver module, which is used to convert the control signals of the motherboard 8 into a stable high-frequency current. It works with the plasma head 12 to generate an electric flame, so as to accurately adjust the output power of the plasma head 12.

[0041] Inside the chassis 2, a motherboard 8 is fixedly connected. The motherboard 8 is an epoxy resin copper-clad board used to integrate the signals and power supply of various components. It works with the switch 3, driver 7 and terminal 13 to transmit data and distribute power, so as to achieve the effect of overall control of the operation of the electric flame stove. The upper surface of the motherboard 8 is fixedly connected with a plug-in terminal 13. The plug-in terminal 13 is a phosphor bronze plug-in terminal. One end of the plug-in terminal 13 is fixedly connected to the bottom of the plasma head 12. The plasma head 12 is connected to the motherboard 8 through the plug-in terminal 13. The connection part is fixed and pressed with screws, which is permanent. Each wire is locked to the motherboard 8 with screws to ensure stable circuit contact and prevent loosening and power failure.

[0042] The sidewall of the plasma head 12 is slidably connected to the inside of the furnace head 9. Through the sliding cooperation between the plasma head 12 and the furnace head 9, the position is calibrated in conjunction with the furnace base 10 to ensure that the electric flame is accurately discharged through the furnace head 9. A fan 11 is fixedly connected to the bottom of the furnace base 10. The fan 11 is a silent centrifugal cooling fan, model DC12V8025, which is used to accelerate the airflow inside the chassis 2 and dissipate heat in conjunction with the motherboard 8 and the plasma head 12, so as to remove the internal high temperature in time and prevent the components from being damaged due to overheating.

[0043] Reference Figures 6-7The dustproof component includes a dustproof mesh 19, which is a composite material of nylon mesh and galvanized steel wire. It is used to filter dust and impurities from the air entering the chassis 2, preventing dust from adhering to the surface of components such as the motherboard 8 and fan 11, affecting heat dissipation and operation. This achieves the effect of keeping the inside of the chassis 2 clean and extending the service life of the components. The side wall of the dustproof mesh 19 is attached to the side wall of the chassis 2, and works with the ventilation openings on the side wall of the chassis 2 to filter the air, achieving the effect of not obstructing airflow and effectively preventing dust.

[0044] A positioning block 20 is fixedly connected to the side wall of the dustproof net 19. The positioning block 20 is made of ABS engineering plastic and is used to fix the dustproof net 19 and guide it to accurately align with the chassis 2. This avoids dustproof dead corners caused by the installation of the dustproof net 19 and ensures the stable assembly of the dustproof net 19. A magnetic block 21 is provided on the side wall of the positioning block 20. The magnetic block 21 is made of neodymium iron boron strong magnet and simplifies the disassembly and assembly steps of the dustproof net 19.

[0045] Positioning block 20 and magnetic block 1 21 are slidably connected to the inside of chassis 2. They are installed by sliding with the groove on the inner wall of chassis 2, so that the dust filter 19 can be quickly installed and removed without tools. This makes it convenient for users to regularly remove the dust filter 19 for cleaning, avoiding the cumbersome problem of traditional screw fixing. Inside chassis 2, there is a magnetic block 22. The magnetic block 22 is made of ferrite permanent magnet. The magnetic block 22 and magnetic block 1 21 attract each other. Through the magnetic attraction between the two, the dust filter 19 is tightly attached to the side wall of chassis 2, so as to prevent the dust filter 19 from shifting due to the wind force of fan 11 or slight vibration, and ensure the stable dust protection effect.

[0046] A protective frame 18 is fixedly connected to the surface of the chassis 2. The protective frame 18 is made of 6063 aluminum alloy and is used to wrap the connection edge between the chassis 2 and the rock slab body 1 to prevent edge collisions and deformation during transportation or use, thereby protecting the integrity of the equipment's appearance. Corner guards are provided at the four corners of the protective frame 18. The corner guards fit against the four corners of the chassis 2 edge to buffer the impact force received at the four corners. Together with the protective frame 18, they form all-round edge protection, further reducing the probability of equipment damage due to collisions and improving the durability of the equipment.

[0047] Working principle: When using this device, a start command is first sent by operating the switch 3 on the upper surface of the slab body 1. The command signal is transmitted to the main board 8 inside the chassis 2. At the same time, the battery 6 inside the chassis 2 provides initial power to the entire system, or can be directly connected to the household circuit for continuous power supply. After receiving the power, the main board 8 distributes it to the driver 7 and terminal 13 to complete the energy preparation before cooking. After receiving the control signal from the main board 8, the driver 7 starts to adjust the output power to provide a stable high-frequency high-voltage current to the plasma head 12. At the same time, the main board 8 sends a start signal to the fan 11 at the bottom of the stove base 10. The fan 11 starts running to prepare for heat dissipation during the subsequent operation of the plasma head 12, and to prevent the components from being damaged by high temperature.

[0048] After receiving high-frequency, high-voltage current from the motherboard 8 via terminal 13, the plasma head 12 excites gases such as nitrogen and oxygen in the air through its internal electrode group, causing the gases to ionize and form high-temperature plasma. The side wall of the plasma head 12 is slidably connected to the inside of the burner head 9. The generated electric flame is directed upward through the channel of the burner head 9 and finally sprayed out from the top of the burner head 9, forming an open flame that can be used for cooking, meeting the needs of Chinese cooking such as stir-frying and deep-frying. Users place the pot on the pot rack 4 that is slidably connected to the surface of the slab body 1. The pot rack 4 can be adjusted according to the size of the pot to ensure that the bottom of the pot is accurately aligned with the open flame sprayed from the burner head 9. During the cooking process, the soup and oil will drip into the water tray 5 on the surface of the slab body 1. The inside of the water tray 5 is slidably connected to the side wall of the burner head 9, which not only prevents the stains from contaminating the burner head 9 and the chassis 2, but also facilitates subsequent cleaning.

[0049] A spring 17 is installed inside the fixing sleeve 14, which is fixedly connected to the side wall of the plasma head 12. One end of the spring 17 is fixed inside the fixing sleeve 14, and the other end pushes the pressure plate 15 to fit tightly against one side of the sealing ring 16. At the same time, the other side of the sealing ring 16 fits against the bottom of the stove base 10, and the side wall of the sealing ring 16 is slidably connected to the side wall of the plasma head 12. This structure, through the elastic pressure of the spring 17, ensures that the sealing ring 16 always fits tightly against the contact surface between the plasma head 12 and the stove base 10, preventing soup and oil stains from entering the interior of the casing 2 through the gap between the plasma head 12 and the stove base 10 during cooking.

[0050] The dust filter 19 is attached to the side wall of the chassis 2. The positioning block 20 fixedly connected to its side wall and the magnetic block 21 on the positioning block 20 are embedded into the inside of the chassis 2. The magnetic block 22 inside the chassis 2 attracts the magnetic block 21, enabling quick fixing and removal of the dust filter 19. This ensures airflow when the fan 11 is dissipating heat and facilitates regular dust cleaning. At the same time, the protective frame 18 fixedly connected to the surface of the chassis 2 and its four corner guards can buffer the impact of external collisions on the chassis 2 and the rock plate body 1, preventing edge damage.