Vent filter and electric device using the same

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 46/54 (2006.01) B01D 39/14 (2006.01) B01D 39/16 (2006.01) B01D 53/04 (2006.01) B01D 71/36 (2006.01) G11B 33/14 (2006.01)

Patent

CA 2754431

It is an object to provide a vent filer that can reduce contaminants diffusing through the vent filter into the inside of a housing, and has high diffusion efficiency and low pressure loss. The vent filter has an adhesive layer 1 having a through-hole 1a at least in one area; a flow path member 2 provided with a flow path 2a in communication with the through-hole 1a; and an air-permeable membrane 3 covering the flow path member 2 and part of the adhesive layer 1, wherein the peripheral portion 3a of the air-permeable membrane 3 is fixed to the adhesive layer 1 and the flow path member 2 is held within a hollow portion formed between the adhesive layer 1 and the air-permeable membrane 3.

La présente invention concerne un filtre de ventilation qui réduit la dispersion à partir du filtre de matières contaminées vers l'intérieur du casier, et qui présente une efficacité de diffusion élevée et une faible perte de pression. Le filtre de ventilation présente une couche adhésive (1) ayant un trou débouchant (1a) au moins dans une région, un élément de voie d'écoulement (2) prévu avec une voie d'écoulement (2a) raccordée au trou débouchant (1a), et un film de ventilation (3) qui couvre l'élément de voie d'écoulement (2) ainsi qu'une partie de la couche adhésive (1). La section périphérique (3a) du film de ventilation (3) est fixée à la couche adhésive (1), et l'élément de voie d'écoulement (2) configure le filtre de ventilation qui se tient dans une section creuse formée entre la couche adhésive (1) et le film de ventilation (3).

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