Wireless intelligent temperature control electric heating furnace

Abstract

The utility model discloses a wireless intelligent temperature control electrothermal furnace, and belongs to the technical field of electric heating equipment. The electrothermal furnace comprises a metal shell, wherein an energy storage battery, a heat insulation layer and a heating plate are sequentially arranged in an accommodating cavity of the metal shell from bottom to top; a first heat insulation piece is arranged between the bottom surface and / or the side surface of the energy storage battery and the corresponding inner surface of the metal shell; the heating plate is installed at the top opening of the metal shell in an embedded mode. The efficient heat insulation layer is arranged between the energy storage battery and the heating plate, so that heat is effectively prevented from being transmitted to the energy storage battery, the safety of the battery is improved, and the service life of the battery is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of electric heating equipment technology, and more specifically, to a wireless intelligent temperature-controlled electric furnace. Background Technology

[0002] Electric stoves, as common heating devices in modern kitchens and the catering industry, have brought great convenience to people's lives. However, most commercially available electric stoves require a power cord to operate, which greatly limits the flexibility of their use. In outdoor activities, food trucks, patio parties, or indoor areas far from power outlets, the inability to access a power source often causes inconvenience. Therefore, developing a "wireless" heating device that is not bound by power cords has become an urgent need to meet diverse lifestyles and improve user experience.

[0003] To meet the needs of mobile use, portable electric heaters with built-in energy storage batteries have emerged on the market. These heaters are powered by internal batteries, eliminating reliance on external power sources and significantly improving ease of use. However, integrating heating components and energy storage batteries into the same device also brings new technical challenges. For example, when the heater is operating, its heating elements, such as the heating plate, generate very high temperatures, typically reaching several hundred degrees Celsius. This high temperature will inevitably be transferred to other components inside the device through heat conduction, convection, and radiation, especially the temperature-sensitive battery. If the battery is exposed to high temperatures for extended periods, its performance will degrade rapidly, and its lifespan will be significantly shortened. More seriously, excessively high temperatures may cause uncontrolled battery thermal runaway, potentially leading to serious safety accidents such as battery bulging, leakage, fire, or even explosion.

[0004] Therefore, how to provide an electric furnace that can be both portable and wireless, and effectively protect the internal energy storage battery from high temperatures to ensure its safe and reliable operation, has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] The purpose of this invention is to provide a wireless intelligent temperature-controlled electric furnace, which aims to solve the safety hazards of existing energy storage electric furnaces due to the high temperature of the internal battery and the heat conduction of the metal shell.

[0006] This utility model provides a wireless intelligent temperature-controlled electric furnace, including a metal shell forming a receiving cavity. Within the receiving cavity, an energy storage battery, a heat insulation layer, and a heating plate are arranged sequentially from bottom to top.

[0007] A first heat insulation element is provided between the bottom and / or side surfaces of the energy storage battery and the corresponding inner surface of the metal casing;

[0008] The heating plate is embedded in the top opening of the metal casing.

[0009] Optionally, the heat insulation layer includes an aerogel heat insulation layer and an air layer as a second heat insulation component; the aerogel heat insulation layer is a flexible felt and is directly disposed above the energy storage battery; the air layer is formed between the aerogel heat insulation layer and the heating plate, and the air layer is surrounded by the upper surface of the aerogel heat insulation layer, the lower surface of the heating plate and the inner wall of the metal shell, and communicates with the outside through heat dissipation grooves opened on the side wall of the metal shell.

[0010] Optionally, the thermal conductivity of the aerogel insulation layer is less than or equal to 0.02 W / (m·K), its thickness is 5-20 mm, and the height of the air layer is 3-20 mm.

[0011] Optionally, the heat insulation layer includes an encapsulation layer disposed below the heating plate and a vacuum layer formed between the heating plate and the encapsulation layer; a plurality of supports are disposed between the heating plate and the encapsulation layer to support the vacuum layer.

[0012] Optionally, the heating plate and the encapsulation layer are each independently selected from microcrystalline glass, high borosilicate glass, quartz glass or tempered glass, the thickness of the vacuum layer is 0.3-1mm, and the support is an alloy ball or a glass ball.

[0013] Optionally, the first insulation element is made of ceramic fiber felt, fiberglass board or high-temperature resistant foam material.

[0014] Optionally, the heating plate includes a microcrystalline glass substrate and a high-temperature sprayed semiconductor electrothermal material heating element disposed on the microcrystalline glass substrate; the upper surface of the microcrystalline glass substrate is flush with the upper surface of the metal shell, and the microcrystalline glass substrate and the metal shell are sealed with silicone.

[0015] Optionally, it also includes an intelligent thermostat; the intelligent thermostat integrates at least one temperature sensor, a main control chip, and a control module; the temperature sensor is used to monitor the temperature of the heating plate and send the temperature data to the main control chip, and the main control chip adjusts the power of the heating plate according to the temperature data through the control module.

[0016] Optionally, the temperature sensor is a type K thermocouple, and its temperature probe is fixed to the inner surface of the heating plate by a metal clip; the control module is a solid-state relay or a silicon controlled rectifier.

[0017] Optionally, a tilt sensor is also included, which is installed at the bottom of the metal casing and triggers the heating plate to cut off power when the furnace body is detected to tilt more than a preset angle.

[0018] Based on the technical content disclosed in this utility model, the following beneficial effects are achieved:

[0019] The beneficial effects of this utility model are as follows: First, by using a built-in energy storage battery, the electric heater can be used independently without an external power source, achieving true "wireless" operation, significantly expanding its application scenarios, and solving the pain point that traditional wired electrical appliances cannot be used outdoors or in areas far from sockets.

[0020] Secondly, to safely achieve the aforementioned wireless functionality, this invention incorporates a heat insulation layer between the energy storage battery and the heating plate, and a first heat insulation component between the bottom and / or side surfaces of the energy storage battery and the corresponding inner surfaces of the metal casing. The heat insulation layer effectively blocks the transfer of high temperatures generated by the heating plate during operation to the energy storage battery; simultaneously, the first heat insulation component reduces the heat conducted from the heated metal casing to the energy storage battery. This dual heat insulation design effectively isolates the high-temperature area from the temperature-sensitive energy storage battery, preventing performance degradation, shortened lifespan, and even safety risks caused by overheating.

[0021] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0023] Figure 1 This is a structural diagram of the wireless intelligent temperature-controlled electric furnace according to Embodiment 1 of this utility model.

[0024] Figure 2 This is a partial structural diagram of the side wall of the metal casing of this utility model.

[0025] Figure 3 This is a structural diagram of the wireless intelligent temperature-controlled electric furnace according to Embodiment 2 of this utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Heating plate; 2. Air layer; 3. Aerogel insulation layer; 4. Energy storage battery; 5. Metal casing; 6. Heat dissipation groove; 7. Heat dissipation fin structure; 8. Encapsulation layer; 9. Vacuum layer; 10. Support. Detailed Implementation

[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0028] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0029] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0030] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0032] This utility model provides a wireless intelligent temperature-controlled electric heater. Its core concept lies in setting a high-efficiency heat insulation layer between the energy storage battery 4 and the heating plate 1, and adding a first heat insulation component between the energy storage battery 4 and the metal casing 5 to effectively protect the energy storage battery 4. Simultaneously, it integrates an intelligent temperature control system to achieve precise temperature control, and utilizes the energy storage battery 4 for portable use. The high-efficiency heat insulation layer can be, for example... Figure 1 The combination of aerogel insulation layer 3 and air layer 2 shown, or as... Figure 3 This is achieved through methods such as the vacuum layer 9 heat insulation structure shown.

[0033] Example 1:

[0034] Reference Figure 1 and Figure 2 In this embodiment, the wireless intelligent temperature-controlled electric furnace has its main components housed and fixed within a metal casing 5. The metal casing 5 forms an internal cavity. Within the cavity, from bottom to top, a storage battery 4, an aerogel insulation layer 3 serving as a second heat insulation element, an air layer 2, and a heating plate 1 are stacked sequentially.

[0035] First, the energy storage battery 4, serving as the power source for the electric furnace, is a single, integrated battery module placed at the bottom of the metal casing 5's housing. To prevent the metal casing 5's heat conduction from affecting the energy storage battery 4, a first heat insulation component is provided between the bottom and / or side surfaces of the energy storage battery 4 and the corresponding inner surfaces of the metal casing 5. This first heat insulation component can be made of high-temperature resistant, low-thermal-conductivity materials, such as ceramic fiber felt, fiberglass board, or high-temperature resistant foam. Its function is to prevent heat that may be absorbed or conducted by the metal casing 5 from being directly transferred to the energy storage battery 4. The energy storage battery 4 can be a lithium iron phosphate battery pack or a ternary lithium battery pack, and its rated voltage can be designed according to actual needs, such as 24V, 48V, 72V, 110V, 220V, or 380V.

[0036] Secondly, the aerogel insulation layer 3, as the second insulation component, directly covers the upper surface of the energy storage battery 4, serving as the primary barrier against the high temperature from the heating plate 1. This aerogel insulation layer 3 is preferably made of an aerogel composite material with extremely low thermal conductivity, such as SiO2 aerogel felt, which is flexible and can adhere well to the upper surface of the energy storage battery 4. Its thermal conductivity is preferably less than or equal to 0.02 W / (m·K), effectively preventing heat transfer from the upper heating plate 1. The thickness of the aerogel insulation layer 3 can be designed according to specific insulation requirements and overall product thickness limitations, for example, within the range of 5 mm to 20 mm.

[0037] Then, the heating plate 1 is located at the top of the entire layered structure, embedded in the opening at the top of the metal casing 5. The heating plate 1 is the component that directly generates heat for cooking or heating, and may include a microcrystalline glass substrate and a heating element made of high-temperature sprayed semiconductor electrothermal material disposed on the microcrystalline glass substrate. The substrate is preferably made of a microcrystalline glass material with an extremely low coefficient of thermal expansion, for example, a coefficient of thermal expansion not greater than 1.5 × 10⁻⁶. -6 The microcrystalline glass substrate has a surface temperature of / ℃. The heating element can be a high-temperature sprayed semiconductor electrothermal material, with a surface operating temperature reaching up to 500℃. For aesthetics and ease of cleaning, the upper surface of the microcrystalline glass substrate is approximately flush with the upper surface of the metal casing 5. To achieve an IPX4 waterproof rating, the gap between the microcrystalline glass substrate and the metal casing 5 is sealed with silicone.

[0038] Combination Figure 1 and Figure 2 An air layer 2 is formed between the aerogel insulation layer 3 and the heating plate 1. This air layer 2 is enclosed by the upper surface of the aerogel insulation layer 3, the lower surface of the heating plate 1, and the inner wall of the metal shell 5, forming a cavity. This cavity communicates with the external air through several heat dissipation grooves 6 (preferably elongated holes) on the side wall of the metal shell 5, which serve as heat dissipation fin structures 7. These heat dissipation grooves 6 allow for a certain degree of air exchange between the cavity and the external environment, helping to dissipate heat that may accumulate in the air layer and surrounding area. Simultaneously, because it still constitutes a defined air gap, it still provides significant insulation, effectively blocking convective and radiative heat transfer. The height of the air layer 2 (i.e., the vertical distance from the upper surface of the aerogel insulation layer 3 to the lower surface of the heating plate 1) can be designed to be between 3mm and 20mm. This dual combination of "aerogel insulation layer + air layer" achieves excellent insulation performance, enabling the total thermal resistance of the entire insulation system to reach 1.5m. 2• K / W or higher. The thermal conductivity of aerogel is much lower than that of air; therefore, a thicker aerogel insulation layer 3 can play a major role in thermal insulation, while the gaps in the air layer 2 are relatively small, together achieving good thermal insulation within a limited product thickness. In a preferred embodiment, the ratio of the thickness of the aerogel insulation layer 3 to the height of the air layer 2 can be controlled within the range of 2:1 to 5:1. This optimized range, derived through experimental testing and considering the overall product thickness, ensures that the heat transferred to the energy storage battery 4 meets safety requirements.

[0039] The metal casing 5 provides structural support and encapsulated protection for the entire electric furnace. The metal casing 5 can be made of metal materials with good strength and corrosion resistance, such as 304 stainless steel or aluminum alloy, and its thickness is typically between 0.8 mm and 1.5 mm. (Refer to...) Figure 2 To aid in heat dissipation, several heat dissipation grooves 6 can be formed on the side walls of the metal casing 5, which together constitute the heat dissipation fin structure 7. For example, two rows of heat dissipation grooves 6 can be formed on each side wall of the metal casing, with each row containing five elongated slots to increase the heat dissipation area.

[0040] To achieve precise temperature control and intelligent operation, this invention also includes an intelligent temperature controller. This intelligent temperature controller is an integrated control unit, typically containing at least one high-precision temperature sensor (or its interface), a main control chip (e.g., a microcontroller MCU), and a power control module. The intelligent temperature controller is installed at a suitable location (e.g., on the side) within the metal casing 5 and includes an operating interface (e.g., buttons or a touch area) and a temperature display device. The intelligent temperature controller is electrically connected to the energy storage battery 4 and the heating plate 1 via internal circuitry. The temperature sensor's probe (e.g., a K-type thermocouple) is securely fixed to a specific location on the inner surface (i.e., the lower surface) of the heating plate 1 using metal clips or similar means to accurately monitor the actual temperature of the heating plate. To more comprehensively and accurately understand the temperature distribution of the heating plate 1, at least three such temperature monitoring points can be evenly distributed on the inner surface of the heating plate 1. The temperature data collected by these monitoring points can be transmitted at high speed and reliably to the main control chip (e.g., an STM32F103 chip) inside the intelligent temperature controller via communication methods such as a CAN bus. After receiving temperature data, the main control chip can run a preset control algorithm (such as a PID control algorithm) to calculate the corresponding control commands and precisely adjust the power supplied to the heating element on the heating plate 1 through a power control module (such as a solid-state relay SSR). This closed-loop control method allows for stepless adjustment of the heating temperature within a range of, for example, 50℃ to 500℃. The intelligent temperature controller also features intelligent functions such as timer and WiFi remote operation. Furthermore, the intelligent temperature control system should have over-temperature protection; for example, when the temperature of the heating plate 1 exceeds a preset safety threshold (such as 520℃), the system will automatically cut off the heating power to prevent overheating and potential hazards. Considering that the intelligent temperature controller itself is also an electronic component, its installation location is preferably close to the energy storage battery 4 and as far away as possible from the high-temperature heating plate 1. If necessary, an additional layer of heat-insulating material can be added between the intelligent temperature controller and the heating plate 1.

[0041] The electric furnace of this invention can also undergo structural integration and optimization design. For example, by adopting an integrated assembly process, the overall thickness of the device can be controlled to within, for example, 80mm, achieving a thinner and lighter design. To further improve safety, a tilt sensor is also integrated. This tilt sensor is installed at the bottom of the metal casing 5. Its working principle can be based on the photoelectric effect: the sensor contains a movable ball or pendulum. When the device is placed normally, the ball or pendulum blocks the light path, and the light receiver has no signal output. When the device tilts beyond a preset safe angle, the ball or pendulum shifts, causing the light path to conduct. The light receiver detects the change in light signal and outputs a high-level signal to the main control chip. The main control chip then controls the heating plate 1 to cut off the power to prevent dangers such as fires caused by accidental tilting.

[0042] In this embodiment:

[0043] The energy storage battery 4 uses 21700 type lithium battery cells (single cell specification is 3.7V / 5000mAh), which are arranged in a 6 parallel and 4 series configuration to form an energy storage unit with a rated voltage of 22.2V and a capacity of 30Ah. A layer of ceramic fiber felt with a thickness of 3mm is set between the bottom of the energy storage battery 4 and the inner bottom surface of the metal casing 5 as the first heat insulation element.

[0044] The aerogel insulation layer 3, which serves as the second insulation component, is made of SiO2 aerogel felt with a thickness of 10 mm.

[0045] Heating plate 1 is a circular microcrystalline glass plate with a diameter of 200mm and a rated heating power of 1500W.

[0046] The air layer 2 formed between the aerogel insulation layer 3 and the heating plate 1 has a height of 3mm.

[0047] The intelligent temperature controller integrates a K-type thermocouple (temperature range 0-600℃) as the internal temperature sensor, an STM32F103 chip as the main control chip, and a solid-state relay as the power control module.

[0048] Two rows of five elongated heat dissipation slots 6 are arranged on each side of the metal casing 5 as heat dissipation fin structures 7, and these heat dissipation slots 6 are connected to the air layer 2.

[0049] A tilt sensor based on photoelectric principles is installed at the bottom.

[0050] The electric furnace of this embodiment was tested at an ambient temperature of 25°C: Heating continuously at 1500W for 30 minutes, the surface temperature of the heating plate 1 remained stable at the set value; for example, at 300°C, the temperature control accuracy reached ±5°C. At this time, the temperature of the area where the energy storage battery 4 is located at the bottom was measured, and its temperature was below 45°C. This result demonstrates that the multi-layered heat insulation structure employed in this invention effectively isolates the high temperature generated by the heating plate and the heat that may be conducted by the metal casing from the energy storage battery, ensuring that the energy storage battery operates within a safe temperature range.

[0051] Example 2

[0052] Reference Figure 3 This embodiment discloses another type of wireless intelligent temperature-controlled electric furnace with a different insulation structure. Its main difference from Embodiment 1 lies in the insulation structure between the energy storage battery 4 and the heating plate 1. In this embodiment, the insulation layer employs a vacuum layer 9 design to achieve efficient insulation and reduce the overall thickness of the device.

[0053] Specifically, within the cavity of the metal casing 5, from bottom to top, are arranged an energy storage battery 4, an encapsulation layer 8 directly or indirectly disposed above the energy storage battery 4, a vacuum layer 9 formed between the encapsulation layer 8 and the heating plate 1, and the uppermost heating plate 1. A first heat insulation element is disposed between the bottom surface and / or side surface of the energy storage battery 4 and the metal casing 5. The encapsulation layer 8 is directly supported on the energy storage battery 4 or spaced apart from the energy storage battery 4 by other supporting structures.

[0054] The heating plate 1 can be made of microcrystalline glass, borosilicate glass, quartz glass, or tempered glass with a thickness of 1mm to 5mm. The encapsulation layer 8 can also be made of microcrystalline glass, borosilicate glass, quartz glass, or tempered glass with a thickness of 1mm to 5mm.

[0055] A vacuum layer 9 is formed between the lower surface of the heating plate 1 and the upper surface of the encapsulation layer 8, and its thickness (i.e., the gap between the two plates) is controlled between 0.3 mm and 1 mm. To resist atmospheric pressure after vacuuming and to prevent the heating plate 1 and the encapsulation layer 8 from sticking together, multiple supports 10 are uniformly or arrayed inside the vacuum layer 9. These supports 10 can be made of high-strength, low-thermal-conductivity materials, such as alloy spheres or glass spheres. The outer diameter (or height) of the supports 10 is substantially the same as the preset thickness of the vacuum layer 9.

[0056] The vacuum layer 9 can be prepared as follows: Sealing material (e.g., low-temperature glass powder or metal solder) is pre-placed around the heating plate 1 and the encapsulation layer 8, and a support 10 is arranged between them according to the design. Then, the entire assembly is placed into a vacuum chamber. First, the vacuum chamber is evacuated to achieve the desired vacuum level between the heating plate 1 and the encapsulation layer 8, for example, 0.1 Pa to 0.0001 Pa. Subsequently, the assembly is heated in a vacuum environment to melt the sealing material (e.g., within a temperature range of 150°C to 1000°C, depending on the type of sealing material), thereby fusing and sealing the edges of the heating plate 1 and the encapsulation layer 8 to form a permanently sealed vacuum chamber. After cooling, it is removed to obtain the thermal insulation component with the vacuum layer 9.

[0057] This vacuum layer 9 insulation structure utilizes the characteristic that vacuum transfers almost no heat convection and conduction, effectively preventing the high temperature generated by the heating plate 1 during operation from being transferred to the energy storage battery 4 below. Simultaneously, because the vacuum layer 9 can be made very thin (0.3-1mm), and the heating plate 1 and encapsulation layer 8 are also relatively thin (1-5mm each), compared to the "aerogel insulation layer + air layer" structure in Example 1, the vacuum layer 9 insulation solution can significantly reduce the overall thickness of the heating furnace, making it lighter, thinner, and more portable, and eliminating the need for aerogel materials.

[0058] The structure and function of the remaining components, such as the energy storage battery 4, the first heat insulation component, the metal casing 5, the intelligent temperature controller, and the tilt sensor, in this embodiment can be referred to the description in Embodiment 1, and will not be repeated here. By using the vacuum layer 9 for heat insulation, the temperature of the energy storage battery 4 area can also be controlled within a safe range, ensuring the safe and reliable operation of the electric furnace.

[0059] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A wireless intelligent temperature-controlled electric furnace, characterized in that, The device includes a metal casing that forms a receiving cavity, within which are arranged, from bottom to top, an energy storage battery, a heat insulation layer, and a heating plate, wherein: A first heat insulation element is provided between the bottom surface and / or side surface of the energy storage battery and the corresponding inner surface of the metal casing; The heating plate is embedded in the top opening of the metal casing.

2. The wireless intelligent temperature-controlled electric furnace according to claim 1, characterized in that, The heat insulation layer includes an aerogel heat insulation layer and an air layer, which serve as a second heat insulation component. The aerogel heat insulation layer is a flexible felt and is directly disposed above the energy storage battery. The air layer is formed between the aerogel heat insulation layer and the heating plate, and is surrounded by the upper surface of the aerogel heat insulation layer, the lower surface of the heating plate, and the inner wall of the metal shell, and communicates with the outside through heat dissipation grooves opened on the side wall of the metal shell.

3. The wireless intelligent temperature-controlled electric furnace according to claim 2, characterized in that, The thermal conductivity of the aerogel insulation layer is less than or equal to 0.02 W / (m·K), its thickness is 5-20 mm, and the height of the air layer is 3-20 mm.

4. The wireless intelligent temperature-controlled electric furnace according to claim 1, characterized in that, The heat insulation layer includes an encapsulation layer disposed below the heating plate and a vacuum layer formed between the heating plate and the encapsulation layer; a plurality of supports are disposed between the heating plate and the encapsulation layer to support the vacuum layer.

5. The wireless intelligent temperature-controlled electric furnace according to claim 4, characterized in that, The heating plate and the encapsulation layer are each independently selected from microcrystalline glass, high borosilicate glass, quartz glass or tempered glass, the thickness of the vacuum layer is 0.3-1mm, and the support is an alloy ball or a glass ball.

6. The wireless intelligent temperature-controlled electric furnace according to claim 1, characterized in that, The first heat insulation component is made of ceramic fiber felt, glass fiber board or high-temperature resistant foam material.

7. The wireless intelligent temperature-controlled electric furnace according to claim 1, characterized in that, The heating plate includes a microcrystalline glass substrate and a high-temperature sprayed semiconductor electrothermal material heating element disposed on the microcrystalline glass substrate; the upper surface of the microcrystalline glass substrate is flush with the upper surface of the metal shell, and the microcrystalline glass substrate and the metal shell are sealed with silicone.

8. The wireless intelligent temperature-controlled electric furnace according to claim 1, characterized in that, The wireless intelligent temperature-controlled electric furnace also includes an intelligent temperature controller; the intelligent temperature controller integrates at least one temperature sensor, a main control chip, and a control module; the temperature sensor is used to monitor the temperature of the heating plate and send the temperature data to the main control chip, and the main control chip adjusts the power of the heating plate according to the temperature data through the control module.

9. The wireless intelligent temperature-controlled electric furnace according to claim 8, characterized in that, The temperature sensor is a type K thermocouple, and its temperature probe is fixed to the inner surface of the heating plate by a metal clip; the control module is a solid-state relay or a silicon controlled rectifier.

10. The wireless intelligent temperature-controlled electric furnace according to claim 1, characterized in that, It also includes a tilt sensor, which is installed at the bottom of the metal casing and triggers the heating plate to cut off power when the furnace body is detected to tilt more than a preset angle.

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