| 摘要 |
A filter cartridge and a manufacturing method thereof, the manufacturing method has the following steps: adhering a wavy filtering sheet and a flat filtering sheet, pressing the filtering sheets, rolling the filtering sheets, and mounting a filter frame. A part of peaks of the wavy filtering sheet are pressed to lean toward a same side, which has the following advantages. First, in a channel, an inlet opening is larger than an outlet opening in sectional area, thereby reducing the impedance. Second, a first end sealing adhesive layer is pressed to make said layer tightly connected to the filtering sheets, thereby making the seal reliable. Third, the pressed peaks lean toward a same side, such that there are gaps large enough disposed between any two peaks in arching portions of the innermost circles of the filter core in the outlet side, which ensures the channels are unobstructed. |
| 主权项 |
1. A manufacturing method of a filter cartridge comprising the following steps:
(a) adhering a wavy filtering sheet and a flat filtering sheet, wherein the wavy filtering sheet is for filtering suspended pollutants and has multiple peaks, an outlet side, an inlet side opposite to the outlet side, a first surface and a second surface opposite to the first surface; the first surface is coated with a connecting adhesive layer and a first end sealing adhesive layer; the first end sealing adhesive layer is coated along the outlet side and arranged apart from the outlet side; the flat filtering sheet for filtering suspended pollutants is adhered with the first surface of the wavy filtering sheet by the connecting adhesive layer and the first end sealing adhesive layer; (b) pressing the filtering sheets: pressing the second surface of the wavy filtering sheet along the outlet side of the wavy filtering sheet and from the outlet side to a part of the first end sealing adhesive layer to form a first pressing region; wherein the peaks in the first pressing region lean toward a same side; (c) rolling the filtering sheets: coating a second end sealing adhesive layer on the second surface of the wavy filtering sheet along the inlet side, then rolling the filtering sheets and making the filtering sheets adhered with each other and fixed into a rolled shape by the second end sealing adhesive layer; and (d) mounting a filter frame: mounting the filter frame on the rolled filtering sheets to form a filter cartridge. |
