Positive temperature coefficient (PTC) electric heater for electric automobile air-conditioning system
A technology for electric heaters and electric vehicles, applied in ohmic resistance heating parts, heating elements, heating/cooling equipment, etc., can solve the problems of inability to meet environmental protection requirements, complicated processes, and the adhesive is not easy to disassemble and repair. Overall stability and heat dissipation capacity, good mechanical strength, the effect of avoiding excessive temperature burnout
Active Publication Date: 2012-08-22
河北宏业永盛汽车加热器股份有限公司
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The invention discloses a positive temperature coefficient (PTC) electric heater for an electric automobile air-conditioning system. The periphery of an electrode plate is provided with a silicon rubber fastened frame, wherein the inner space of the frame is equally divided by a silicon rubber strip and is isolated; a PTC heating chip is positioned in each isolated area; frames of two electrode plates are fastened; a plurality of groups of PTC heating plates and radiating fins are alternately arranged in the frame; the PTC heating plates and the radiating fins are electrically insulated through a heat-conducting silicon rubber protective film; a base plate is arranged inside the frame; a damping spring leaf is arranged between the frame and the base plate; a controller is positioned in the shell; a vent hole is formed on the shell; one end of a terminal board is electrically connected with the electrode plates on the PTC heating plates, the other end of the terminal board is connected with the controller through an electrode circuit board, and the terminal board is arranged on the frame; and one end of a plug connector penetrates through the shell so as to be connected with the controller, and the controller is used for controlling the power of the electric heater. The PTC electric heater disclosed by the invention has the characteristics of reliable mechanical structure, durable and environmentally-friendly materials, high temperature rise speed, high radiating capacity and safe and stable operation.
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