Ptc rod assembly and pre-heater including the same

Abstract

The invention provides a positive temperature coefficient (PTC) rod device, comprising: electrode terminals; Supporting parts, the above-mentioned first and second supporting parts are connected to each other; PTC elements and heat transfer blocks respectively connected between adjacent pairs of first supporting parts and between adjacent pairs of second supporting parts; The groove-shaped first and second PTC rods are used to accommodate the above-mentioned devices. According to the PTC rod device described above, the coupling force between the electrode terminal and the insulator can be improved by integrally forming the electrode terminal and the insulator through double injection molding. Also, a support may be provided on the insulator to clearly define the coupling position of the PTC element and the heat transfer block, and a channel may be formed in the enlarged portion and the insulator support to exhaust gas generated when the PTC element is heated to the outside. The present invention also provides a vehicle preheater, comprising: a plurality of PTC rod devices constituted as above; one or more cooling fins that are in close contact with and coupled to both sides of each PTC rod device; and the outermost cooling fins A pair of frames coupled with the outer sides of the device; the first and second shells connected to the longitudinal ends of the above-mentioned device combination; the shell terminal set in the shell as the cathode terminal. According to the above-mentioned preheater, the heat generated on the PTC element is not transferred to the outside, but evenly transferred to the inside of the preheater, the coupling force of each element placed between the frames is increased, and the PTC rod device and heat sink The close contact between them has also been improved.

Description

technical field [0001] The present invention relates to a positive temperature coefficient (hereinafter referred to as "PTC") rod device and a vehicle preheater including the device, and more particularly to a PTC rod device in which the coupling force between an electrode terminal and an insulator is improved Improve, and can clearly define the coupling position between the PTC element and the heat transfer block, and discharge the gas generated when the PTC element is heated to the outside; the vehicle preheater is improved, and can be constructed so that the heat generated by the PTC element will not be transferred to the outside world, but is evenly transferred to the heat sink and breaks the contact between the PTC rod device and the above heat sink. Background technique [0002] General vehicles have a heating device for heating the interior of the vehicle or removing moisture or moisture from the vehicle windshield by utilizing thermal energy from water heated to cool...

AI Technical Summary

Problems solved by technology

[0011] Moreover, since the PTC element 8 is only connected to the electrode terminal 2 by one side in the conventional device, there is also a problem that heat cannot be uniformly transferred.

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