A pleated filter element for an air conditioner filter and its manufacturing method

Abstract

This invention relates to a pleated filter element for air conditioning filters and its manufacturing method. The pleated filter element includes a skeleton support layer (1) and surface layers welded to both sides of the skeleton support layer. The skeleton support layer has hot-pressing grooves (2) at the pleats to facilitate molding, and through holes evenly distributed along the hot-pressing grooves (2) are provided between adjacent hot-pressing grooves (2). The cavity formed by the through holes and the surface layers on both sides of the through holes is filled with adsorbent material. Compared with the prior art, this invention can easily form the required filter element structure by molding with a pleating mold during the preparation process. The filter element produced by this method has uniform pleats, and the relevant dimensions of the pleats are easy to control accurately. Moreover, the meltblown fabric will not fray or break during the process. In addition, by mixing carbon powder and binder liquid first, and then performing the carbon filling operation after the carbon powder is saturated with the liquid, the carbon powder will not stick everywhere due to static electricity and be difficult to control when the nonwoven fabric is stacked.

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