Teflon high-temperature film heating sheet

Abstract

The utility model provides a Teflon high temperature film heating sheet, which comprises a heating sheet body, a metal expansion type temperature controller and a thermistor, and is characterized in that the heating sheet body comprises a heat conduction metal layer, a heating wire layer arranged on the top surface of the heat conduction metal layer, and a Teflon film layer covering the top of the heating wire layer; two pins of the thermistor are electrically connected with a first wire and a second wire respectively, the heating wire layer comprises a first heating wire end and a second heating wire end, the metal expansion type temperature controller comprises a first outgoing line and a second outgoing line, one end of the first outgoing line is welded to the second heating wire end, and a third wire is welded to the first heating wire end. The thermistor can monitor the temperature of the position where the thermistor is located in real time and feed back the temperature to the controller, the heating device controls the working state of the heating wire according to the temperature condition, it is ensured that the heating temperature is accurate, energy consumption is reduced, device burning loss is prevented, use safety is improved, and the heating device has dual protection effects and is higher in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of heating sheets, in particular to a Teflon high-temperature film heating sheet. Background Art

[0002] Commercially available Teflon high-temperature heaters typically combine Teflon with metal, leveraging the metal's thermal conductivity to achieve heating. However, this combination presents several issues and drawbacks. First, while metal has excellent thermal conductivity, its coefficient of thermal expansion does not match that of Teflon, which can easily cause the heater to crack or fall off during heating. Second, metal is susceptible to oxidation and corrosion at high temperatures, impacting the heater's lifespan and reliability. Furthermore, existing Teflon high-temperature heaters lack temperature monitoring and protection features, making it impossible to accurately control the heating temperature and posing significant safety risks. Summary of the Invention

[0003] The problem to be solved by the utility model is to provide a Teflon high-temperature thin film heating plate, which improves the working stability and service life of the heating plate, improves the heating temperature accuracy, and improves the safety of use.

[0004] To solve the above technical problems, a Teflon high-temperature thin film heating plate provided by the utility model includes a heating plate body, a metal expansion temperature controller, and a thermistor. The heating plate body includes a heat-conducting metal layer, a heating wire layer arranged on the top surface of the heat-conducting metal layer, and a Teflon film layer covering the top of the heating wire layer. The thermistor is arranged on the heat-conducting metal layer. The two pins of the thermistor are electrically connected to a first wire and a second wire respectively. The heating wire layer includes a first end portion of the heating wire and a second end portion of the heating wire. The metal expansion temperature controller includes a first lead wire and a second lead wire. One end of the first lead wire is welded to the second end portion of the heating wire, and a third lead wire is welded to the first end portion of the heating wire.

[0005] Preferably, a first soldering pad and a second soldering pad are arranged on the top surface of the thermally conductive metal layer, the two pins of the thermistor are respectively welded on the first soldering pad and the second soldering pad, the first wire and the second wire are respectively welded on the first soldering pad and the second soldering pad, a through slot is provided through the heating plate body, and the thermistor is located on the upper side of the through slot.

[0006] Preferably, one end of the first wire and the second wire is connected to the first female connector, and one end of the third wire and the second lead is connected to the second female connector.

[0007] Preferably, a first adhesive layer is provided on the bottom surface of the heat-conducting metal layer.

[0008] Preferably, a second adhesive layer is provided on the bottom of the metal expansion thermostat.

[0009] Preferably, the first adhesive layer and the second adhesive layer are both double-sided adhesives.

[0010] Preferably, the heat-conducting metal layer is stainless steel.

[0011] Preferably, the thickness of the heat-conducting metal layer is 0.05 mm.

[0012] Preferably, the thickness of the Teflon film layer is 0.13 mm.

[0013] The beneficial effects of the present invention are as follows: the present invention provides a Teflon high-temperature thin film heating plate, which is installed on a heating device. By arranging a heating wire on the top surface of a heat-conducting metal layer to form a heating wire layer, and covering the top of the heating wire layer with a Teflon film layer, the heat generated by the heating wire can be quickly transferred to the heat-conducting metal layer, ensuring that the temperature of the heating plate is uniform, achieving a rapid heating effect, and improving the mechanical strength and working stability of the heating plate, thereby improving the service life and having good high-temperature resistance and reliability. The first and second wires are connected to the controller of the heating device, and the heating device energizes the second lead wire and the third wire. The thermistor can monitor the temperature of its location in real time and feed back to the controller. The heating device controls the working state of the heating wire according to the temperature conditions, ensuring that the heating temperature is accurate and reducing energy consumption. When the temperature is too high, the metal expansion thermostat will automatically disconnect, thereby cutting off the power supply to the heating wire, preventing the device from burning, improving the safety of use, having a dual protection effect, and being more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The schematic diagram of the structure of the present invention after the Teflon film layer is removed is illustrated.

[0015] Figure 2 The cross-sectional structural diagram of the present invention is illustrated.

[0016] Explanation of the accompanying symbols: heating element body 10, heat-conducting metal layer 11, first soldering pad 110, second soldering pad 111, first adhesive layer 112, heating wire layer 12, heating wire first end 120, heating wire second end 121, Teflon film layer 13, through groove 14, metal expansion thermostat 20, first lead wire 21, second lead wire 22, third wire 23, second female connector 24, thermistor 30, first wire 31, second wire 32, first female connector 33. DETAILED DESCRIPTION

[0017] To make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments.

[0018] Based on the described embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present disclosure.

[0019] refer to Figure 1-2 .

[0020] The utility model provides a Teflon high-temperature thin film heating plate, comprising a heating plate body 10, a metal expansion thermostat 20, and a thermistor 30. The heating plate body 10 comprises a heat-conducting metal layer 11, a heating wire layer 12 arranged on the top surface of the heat-conducting metal layer 11, and a Teflon film layer 13 covering the top of the heating wire layer 12. The thermistor 30 is arranged on the heat-conducting metal layer 11, and two pins of the thermistor 30 are electrically connected to a first wire 31 and a second wire 32 respectively. The heating wire layer 12 comprises a first end portion 120 of the heating wire and a second end portion 121 of the heating wire. The metal expansion thermostat 20 comprises a first lead wire 21 and a second lead wire 22. One end of the first lead wire 21 is welded to the second end portion 121 of the heating wire, and a third lead wire 23 is welded to the first end portion 120 of the heating wire.

[0021] The working principle is as follows: the heating element is installed on a heating device, and a heating wire layer 12 is formed by arranging the heating wire on the top surface of the heat-conducting metal layer 11, and a Teflon film layer 13 is covered on the top of the heating wire layer 12. The heat generated by the heating wire can be quickly transferred to the heat-conducting metal layer 11, ensuring a uniform temperature of the heating element and achieving a rapid heating effect. It can also improve the mechanical strength and working stability of the heating element, increase its service life, and have good high-temperature resistance and reliability. The metal expansion thermostat 20 can choose a KSD9700 series thermostat. The first wire 31 and the second wire 32 are connected to the controller of the heating device. The heating device energizes the second lead wire 22 and the third wire 23. The thermistor 30 can monitor the temperature at its location in real time and feed it back to the controller. The heating device controls the working state of the heating wire according to the temperature conditions, ensuring accurate heating temperature and reducing energy consumption. When the temperature is too high, the metal expansion thermostat 20 will automatically disconnect, thereby cutting off the power supply to the heating wire, preventing the device from burning, improving the safety of use, and having a dual protection function and higher reliability.

[0022] Based on the above embodiment, a first soldering pad 110 and a second soldering pad 111 are arranged on the top surface of the thermally conductive metal layer 11, and the two pins of the thermistor 30 are respectively welded on the first soldering pad 110 and the second soldering pad 111, and the first wire 31 and the second wire 32 are respectively welded on the first soldering pad 110 and the second soldering pad 111. A through slot 14 is provided through the heating plate body 10, and the main body of the thermistor 30 is located on the upper side of the through slot 14. The main body of the thermistor 30 can also be pressed into the through slot 14 to compress the overall thickness of the heating plate, so as to facilitate the installation of the heating plate in a narrow space.

[0023] Based on the above embodiment, one end of the first wire 31 and the second wire 32 are connected to the first female connector 33, and one end of the third wire 23 and the second lead wire 22 are connected to the second female connector 24, which facilitates the quick connection of the thermistor 30, the heating wire and the heating equipment.

[0024] Based on the above embodiment, a first adhesive layer 112 is provided on the bottom surface of the heat-conducting metal layer 11 to facilitate bonding the heating sheet to the heating part of the heating device.

[0025] Based on the above embodiment, a second adhesive layer is provided at the bottom of the metal expansion thermostat 20 to facilitate bonding and fixing the metal expansion thermostat 20 on the heating device, thereby ensuring stable operation of the metal expansion thermostat 20.

[0026] Based on the above embodiment, the first adhesive layer 112 and the second adhesive layer are both double-sided adhesives, which are convenient for pasting.

[0027] Based on the above embodiment, the heat-conducting metal layer 11 is made of stainless steel, which can improve the mechanical strength of the heating element and prevent the heating element from breaking.

[0028] Based on the above embodiment, the thickness of the heat-conducting metal layer 11 is 0.05 mm, which facilitates the shaping of the heating sheet and its attachment to the heating device.

[0029] Based on the above embodiment, the thickness of the Teflon film layer 13 is 0.13 mm, which improves the high temperature resistance and chemical stability of the heating element and increases the service life of the heating element.

[0030] The above embodiments are merely descriptions of preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A Teflon high temperature film heating sheet, characterized in that: It comprises a heating plate body, a metal expansion thermostat and a thermistor. The heating plate body comprises a heat-conducting metal layer, a heating wire layer arranged on the top surface of the heat-conducting metal layer and a Teflon film layer covering the top of the heating wire layer. The thermistor is arranged on the heat-conducting metal layer. Two pins of the thermistor are electrically connected to a first wire and a second wire respectively. The heating wire layer comprises a first end portion of the heating wire and a second end portion of the heating wire. The metal expansion thermostat comprises a first lead wire and a second lead wire. One end of the first lead wire is welded to the second end portion of the heating wire. A third lead wire is welded to the first end portion of the heating wire.

2. A Teflon high temperature thin film heating sheet according to claim 1, characterized in that: A first soldering pad and a second soldering pad are arranged on the top surface of the thermally conductive metal layer, two pins of the thermistor are respectively welded to the first soldering pad and the second soldering pad, the first wire and the second wire are respectively welded to the first soldering pad and the second soldering pad, a through slot is provided through the heating plate body, and the thermistor is located on the upper side of the through slot.

3. A Teflon high temperature thin film heating sheet according to claim 2, characterized in that: One end of the first wire and the second wire is connected to the first female connector, and one end of the third wire and the second lead is connected to the second female connector.

4. A Teflon high temperature thin film heating sheet according to claim 3, characterized in that: The bottom surface of the thermally conductive metal layer is provided with a first adhesive layer.

5. A Teflon high temperature thin film heating sheet according to claim 4, characterized in that: A second adhesive layer is arranged at the bottom of the metal expansion thermostat.

6. A Teflon high temperature thin film heating sheet according to claim 5, characterized in that: The first adhesive layer and the second adhesive layer are both double-sided adhesives.

7. The Teflon high temperature film heating sheet according to claim 1, characterized in that: The heat-conducting metal layer is stainless steel.

8. The Teflon high temperature film heating sheet according to claim 1, characterized in that: The thickness of the heat-conducting metal layer is 0.05 mm.

9. The Teflon high temperature thin film heating sheet according to claim 1, characterized in that: The thickness of the Teflon film layer is 0.13 mm.

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