Applications of Elastic Insulation Materials
An insulating material and elastic technology, applied in the application field of elastic insulating materials in PTC heaters, can solve the problems of easy ignition and burning of electrodes, large contact resistance, affecting the safety and service life of PTC heaters, etc. Fire destroys, improves the effect of the contact method
Inactive Publication Date: 2016-07-13
兰美红
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- Abstract
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Problems solved by technology
Because the contact between the metal electrode and the aluminum-sprayed electrode of the PTC heating sheet is a hard contact on the metal surface, its contact resistance is large, so the electrode is easy to be ignited and burned, which affects the safety and service life of the PTC heater
Method used
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Embodiment Construction
[0017] figure 1 It is a structural schematic diagram of the present invention applied in a PTC heater, figure 2 It is a schematic cross-sectional structure diagram of the present invention in the A-A direction, as shown in the figure: in the present invention, a piece of elastic insulating material 6 is respectively placed on the upper and lower pipe walls of the heat dissipation pipe fitting 1 of the PTC heater, and metal foil is arranged on the inner wall of the elastic insulating material 6 7. PTC heating sheets 4 are arranged side by side along the length direction of the PTC heater between the upper and lower metal foils 7 . The metal foil 7 is directly electrically connected to the PTC heating sheet 4 through direct contact. At the same time, an electrode 3 for electrically connecting to a power supply is provided electrically connected to the metal foil, and the PTC heating sheet is energized and heated through the metal foil after the power supply is connected. Cer...
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The invention discloses an application method of an elastic insulation material in a positive temperature coefficient (PTC) heater. According to the application method of the elastic insulation material in the PTC heater, metal foil is arranged on the inner surface of the elastic insulation material, the elastic insulation material is arranged between the tube wall of the PTC heater and PTC heating sheets, and the metal foil is in electric connection with the PTC heating sheets in a direct contact mode. Since the elastic insulation material and the metal foil are both elastic, electrodes of the PTC heating sheets can be fully attached to the metal foil, the contact mode among the electrodes are effectively improved, and therefore the contact resistance between the metal foil and the electrodes is small, the electrodes cannot spark and burn out, the safety of the PTC heater is improved, and the service life of the PTC heater is prolonged.
Description
technical field [0001] The invention belongs to the field of electric heating devices, and in particular relates to the application of an elastic insulating material in a PTC heater. Background technique [0002] PTC heating technology has been widely used in home appliance industries such as heaters and air conditioners. The heating principle is to superimpose metal electrodes (such as copper electrodes, aluminum electrodes, stainless steel electrodes, etc.) with the aluminum-sprayed electrodes of the PTC heating sheet, and wrap them with polyimide composite films and place them in aluminum tubes. After the metal electrode is led out of the aluminum tube, it is energized to make the PTC heating sheet generate heat, and the heat is transferred through the heat sink arranged on the aluminum tube to achieve the purpose of heating. Because the contact between the metal electrode and the aluminum-sprayed electrode of the PTC heating sheet is a hard contact on the metal surface,...
Claims
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IPC IPC(8): H05B3/10
Inventor 兰美红
Owner 兰美红