A heating platter

Abstract

The utility model discloses a heating bottom disc, including silver foil heat conducting layer and heat conducting copper sheet, silver foil heat conducting layer is welded on the surface of heat conducting copper sheet and is covered to heat conducting copper sheet, the heat conducting copper sheet bottom welding has heating coil pipe. The utility model has the advantages of low cost, solve the current heating bottom disc when using silver as heat conducting element, although the thermal conductivity is high, but the cost is higher also, and due to the material of silver is soft, the problem of the deformation of being vulnerable to when being collided.

Description

Technical Field

[0001] This utility model relates to the field of heating element technology, specifically a heating chassis. Background Technology

[0002] A heating base is a type of heating element. In modern electrical appliances, the heating base is one of the core components, and its performance directly affects the heating efficiency, uniformity, and energy consumption of the equipment. Traditional heating bases typically use a metal heating plate combined with an electric heating element. The kettle heating base described in Chinese patent application number 03226162.4 mainly consists of a base plate, a heat transfer plate, and a heating element. Its characteristic is that the base plate, heat transfer plate, and heating element are integrated into a single structure, with the heat transfer plate positioned between the base plate and the heating element, and the three components fixedly connected.

[0003] While existing heating chassis using silver as a heat-conducting element have high thermal conductivity, they are also expensive. Furthermore, because silver is relatively soft, it is prone to deformation upon impact. Therefore, a silver heating chassis with low cost and high overall hardness is needed. Utility Model Content

[0004] The purpose of this invention is to provide a heating chassis with the advantage of low cost. It solves the problem that when existing heating chassis use silver as a heat-conducting element, although the thermal conductivity is high, the cost is also high, and because silver is a soft material, it is easy to deform when it is impacted.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heating base, comprising a silver foil heat-conducting layer and a heat-conducting copper plate, wherein the silver foil heat-conducting layer is welded to the surface of the heat-conducting copper plate and covers the heat-conducting copper plate, and a heating coil is welded to the bottom of the heat-conducting copper plate.

[0006] As a preferred embodiment of the heating chassis of this utility model, the thickness of the silver foil heat-conducting layer is 0.01-0.5mm.

[0007] As a preferred embodiment of the heating chassis of this utility model, the thickness of the heat-conducting copper plate is 0.5-1mm.

[0008] As a preferred embodiment of the heating chassis of this utility model, a first welding layer is provided at the welding joint between the silver foil heat-conducting layer and the heat-conducting copper plate, and the first welding layer is a borax silver solder powder material.

[0009] As a preferred embodiment of the heating chassis of this utility model, a second welding layer is provided at the welding joint between the heat-conducting copper plate and the heating coil, and the second welding layer is a nickel-based brazing filler metal or a silver-based brazing filler metal.

[0010] As a preferred embodiment of the heating chassis of this utility model, a heat insulation sleeve is provided on the surface of the silver foil heat-conducting layer, and a base is fixedly connected to the bottom of the heat insulation sleeve.

[0011] As a preferred embodiment of the heating base of this utility model, a controller is fixedly installed in the inner cavity of the base, and the output end of the controller is provided with a first power supply line and a second power supply line, which are electrically connected to the positive and negative poles of the heating coil.

[0012] As a preferred embodiment of the heating chassis of this utility model, a power supply interface is installed on the surface of the base, and the output end of the power supply interface is electrically connected to the input end of the controller.

[0013] As a preferred embodiment of the heating chassis of this utility model, a temperature sensor is installed on the inner wall of the heat insulation sleeve, and the detection end of the temperature sensor is movably connected to the surface of the silver foil heat-conducting layer.

[0014] In a preferred embodiment of the heating chassis of this utility model, the temperature sensor is electrically connected to a wire, and the wire is electrically connected to the controller.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model significantly improves heat conduction efficiency and uniformity through the combination design of a silver foil heat-conducting layer and a heat-conducting copper plate. The thickness of the silver foil heat-conducting layer is optimally matched with the thickness of the heat-conducting copper plate. Combining the high thermal conductivity of silver and copper, a double-layer heat-conducting structure is formed, making heat transfer faster and more uniformly distributed. The surface of the silver foil is smooth and oxidation-resistant, reducing heat loss and extending service life. The welding layer uses borax silver solder powder and nickel-based or silver-based brazing filler metal, which not only ensures a seamless connection between the silver foil and the copper plate, and between the copper plate and the heating coil, but also reduces thermal resistance through high thermal conductivity and high temperature resistance, further improving overall thermal efficiency. In addition, the design of the heat insulation sleeve effectively reduces heat loss to the environment, concentrating energy in the heating area and achieving the goal of high efficiency and energy saving.

[0017] 2. This utility model achieves precise temperature control and safety protection through a closed-loop control system. The temperature sensor monitors the surface temperature of the silver foil heat-conducting layer in real time and feeds the data back to the controller. The controller dynamically adjusts the power output of the heating coil based on the preset target temperature to ensure that the temperature is stable within the set range, avoiding the local overheating or underheating problems common in traditional heating methods. When an abnormal temperature is detected, the controller can immediately cut off the power supply to the heating coil to prevent the equipment from overheating and damage, ensuring safe use. The modular design of the power supply interface, the first power supply line, and the second power supply line, combined with the intelligent distribution function of the controller, simplifies circuit management and improves system reliability. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0020] Figure 3 This is a partial sectional view of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the present utility model. Figure 3 .

[0022] In the diagram: 1. Silver foil heat-conducting layer; 2. Heat-conducting copper plate; 3. Heating coil; 4. First welding layer; 5. Second welding layer; 6. Heat insulation sleeve; 7. Power supply interface; 8. First power supply line; 9. Controller; 10. Second power supply line; 11. Base; 12. Wire; 13. Temperature sensor. Detailed Implementation

[0023] Please see Figures 1-4 A heating base includes a silver foil heat-conducting layer 1 and a heat-conducting copper plate 2. The silver foil heat-conducting layer 1 is welded to the surface of the heat-conducting copper plate 2 and covers the heat-conducting copper plate 2. A heating coil 3 is welded to the bottom of the heat-conducting copper plate 2.

[0024] Furthermore, the heating coil 3 is a high-insulation ceramic heating tube. The surface of the high-insulation ceramic heating tube is metallized to form a metal connection layer. During the metallization process, a metal layer is formed on the ceramic surface by sintering metal powder.

[0025] Furthermore, the thickness of the silver foil thermal conductive layer 1 is 0.01-0.5 mm.

[0026] Furthermore, the thickness of the thermally conductive copper plate 2 is 0.5-1mm.

[0027] Furthermore, a first welding layer 4 is provided at the welding joint between the silver foil heat-conducting layer 1 and the heat-conducting copper plate 2, and the first welding layer 4 is a borax silver solder powder material.

[0028] Furthermore, a second welding layer 5 is provided at the welding joint between the heat-conducting copper plate 2 and the heating coil 3. The second welding layer 5 is a nickel-based brazing filler metal or a silver-based brazing filler metal.

[0029] Furthermore, a heat insulation sleeve 6 is fitted onto the surface of the silver foil heat-conducting layer 1, and a base 11 is fixedly connected to the bottom of the heat insulation sleeve 6.

[0030] Furthermore, a controller 9 is fixedly installed inside the base 11. The output end of the controller 9 is provided with a first power supply line 8 and a second power supply line 10. The first power supply line 8 and the second power supply line 10 are electrically connected to the positive and negative poles of the heating coil 3.

[0031] Furthermore, a power supply interface 7 is installed on the surface of the base 11, and the output end of the power supply interface 7 is electrically connected to the input end of the controller 9.

[0032] Furthermore, a temperature sensor 13 is installed on the inner wall of the heat insulation sleeve 6, and the detection end of the temperature sensor 13 is movably connected to the surface of the silver foil heat-conducting layer 1.

[0033] Furthermore, a wire 12 is electrically connected to the temperature sensor 13, and the wire 12 is electrically connected to the controller 9.

[0034] Furthermore, the controller 9 supplies power to the temperature sensor 13 via the wire 12. The detection signal of the temperature sensor 13 is transmitted to the controller 9 via the wire 12. The controller 9 controls the heating power of the heating coil 3 according to the detected temperature data and the preset temperature, so that the heating temperature of the silver foil heat-conducting layer 1 is maintained at the set heating temperature.

[0035] During use, the user inputs electrical energy into the heating chassis through an external power source. The power cord is inserted into the power supply interface 7, and the power supply interface 7 transmits electrical energy to the controller 9. The controller 9 distributes and manages the input electrical energy. After the heating function is turned on, the detection end of the temperature sensor 13 is in direct contact with the surface of the silver foil heat-conducting layer 1, and monitors the surface temperature of the silver foil heat-conducting layer 1 in real time. The detected temperature data is transmitted to the controller 9 through the wire 12. The controller 9 supplies power to the temperature sensor 13 through the wire 12 to ensure its continuous operation.

[0036] The controller 9 receives real-time data from the temperature sensor 13 and compares it with the preset target temperature. Based on the temperature difference, it calculates the heating power that needs to be adjusted and outputs the adjusted current / voltage to the heating coil 3 through the first power supply line 8 and the second power supply line 10 to control its heating power. By adjusting the heating power through real-time feedback, the controller ensures that the temperature of the silver foil heat-conducting layer 1 is stable within the target range. If an abnormal temperature is detected, the controller 9 immediately cuts off the power supply to the heating coil 3 to prevent overheating and damage to the equipment.

[0037] During the heating process, the heating coil 3 is located at the bottom of the heat-conducting copper plate 2 and is tightly connected to the heat-conducting copper plate 2 through the second welding layer 5. After being powered on, heat is generated and conducted upward through the heat-conducting copper plate 2. The heat-conducting copper plate 2 is made of copper and has high thermal conductivity, which quickly and evenly transfers heat to the surface. The surface is covered with a silver foil heat-conducting layer 1, which further enhances the heat conduction efficiency and uniformity. The silver foil heat-conducting layer 1 is made of silver and has a higher thermal conductivity than copper, which further improves the heat conduction speed. In addition, the surface is smooth and anti-oxidation, which reduces heat loss and extends service life. The heat insulation sleeve 6 covers the surface of the silver foil heat-conducting layer 1 to prevent heat from being dissipated to the external environment. The bottom is fixedly connected to the base 11 to ensure structural stability. Through multiple layers of heat-conducting materials and tight welding, thermal resistance is reduced and the overall thermal efficiency is improved.

[0038] The first welding layer 4 is made of borax silver solder powder, which has high thermal conductivity and good welding strength. The first welding layer 4 connects the silver foil heat-conducting layer 1 and the heat-conducting copper plate 2, ensuring that there are no gaps between them and reducing heat conduction loss. The second welding layer 5 is made of nickel-based or silver-based brazing filler metal, which is resistant to high temperature and oxidation, and is suitable for long-term heating environments. The second welding layer 5 connects the heat-conducting copper plate 2 and the heating coil 3, ensuring that the heat generated by the heating coil 3 is efficiently transferred to the heat-conducting copper plate 2.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heating base plate comprising a silver foil heat conducting layer (1) and a heat conducting copper plate (2), characterized in that: The silver foil heat-conducting layer (1) is welded to the surface of the heat-conducting copper plate (2) and covers the heat-conducting copper plate (2). A heating coil (3) is welded to the bottom of the heat-conducting copper plate (2).

2. A heating tray as claimed in claim 1, wherein: The thickness of the silver foil thermal conductive layer (1) is 0.01-0.5 mm.

3. A heating tray as claimed in claim 1, wherein: The thickness of the thermally conductive copper plate (2) is 0.5-1mm.

4. A heating tray as claimed in claim 1, wherein: The welding joint between the silver foil heat-conducting layer (1) and the heat-conducting copper plate (2) is provided with a first welding layer (4), which is a borax silver solder powder material.

5. A heating tray as claimed in claim 1, wherein: The weld joint between the heat-conducting copper plate (2) and the heating coil (3) is provided with a second welding layer (5), which is a nickel-based brazing filler or a silver-based brazing filler.

6. A heating tray as claimed in claim 1, wherein: The surface of the silver foil thermal conductive layer (1) is covered with a heat insulation sleeve (6), and a base (11) is fixedly connected to the bottom of the heat insulation sleeve (6).

7. A heating tray according to claim 6, wherein: The base (11) has a controller (9) fixedly installed inside. The controller (9) has a first power supply line (8) and a second power supply line (10) at its output end. The first power supply line (8) and the second power supply line (10) are electrically connected to the positive and negative poles of the heating coil (3).

8. A heating tray according to claim 7, wherein: The base (11) is equipped with a power supply interface (7), and the output end of the power supply interface (7) is electrically connected to the input end of the controller (9).

9. A heating tray as claimed in claim 8, wherein: A temperature sensor (13) is installed on the inner wall of the heat insulation sleeve (6), and the detection end of the temperature sensor (13) is movably connected to the surface of the silver foil heat-conducting layer (1).

10. A heating tray as claimed in claim 9, wherein: The temperature sensor (13) is electrically connected to a wire (12), which is electrically connected to the controller (9).

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