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    AIR PURIFYING APPARATUS
    11.
    发明专利
    AIR PURIFYING APPARATUS 失效

    公开(公告)号：JPH0398657A

    公开(公告)日：1991-04-24

    申请号：JP23780689

    申请日：1989-09-13

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： KATAOKA JINKO ,  NAKAMA HIROTO ,  HIRAMATSU SAWAKO

    IPC: B03C3/155 ,  B03C3/14 ,  B03C3/28

    Abstract: PURPOSE:To enhance the dielectric polarization effect and collection efficiency of an electret filter by integrating a conductive resin net with the electret filter. CONSTITUTION:A charging part 1 consisting of discharge wires 2, parallel plate electrodes 3 and a DC voltage power supply 4 is provided on the upstream side of air flow and an electret filter 6 is arranged on the downstream side of the air flow in a corrugated shape so as to cross an air passage. Discharge wires 7 are provided on the upstream side of the filter 6 and the conductive resin net 8 integrated with the filter 6 is arranged so as to face to the downstream side of the filter 6. Further, voltage is applied to the discharge wires 7 and the resin net 8 is earthed to apply electric fields to the filter 6 by the discharge wires 7 and the resin net 8. As a result, the collection efficiency of dust particles of the filter 6 is enhanced and pressure loss is reduced and the life of the filter 6 is extended and, further, the dielectric polarization effect of the filter 6 is enhanced and collection efficiency is enhanced.

    AIR CLEANER
    12.
    发明专利
    AIR CLEANER 失效

    公开(公告)号：JPH0283048A

    公开(公告)日：1990-03-23

    申请号：JP23395888

    申请日：1988-09-19

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： HIRAMATSU SAWAKO ,  NAKAMA HIROTO

    IPC: B03C3/155 ,  B01D46/18 ,  B03C3/14 ,  B03C3/28

    Abstract: PURPOSE:To permit the replacement of a filter at an appropriate time by increasing the effective area of an electret filter, reducing the filtration velocity of this filter to reduce the pressure loss thereof and increase the dust collecting efficiency thereof and controlling the filter by a timer. CONSTITUTION:An electric discharge part 1 consisting of a discharge wire 2 and a plate electrode 3 is provided on the upstream side of air flow and an electret filter 6, together with a take-up device 7 therefor, is provided on the downstream thereof. The filter 6 is arranged in a wavy configuration transverse to an air flow passage and the replacement time thereof is controlled by a timer 12. As a result, the pressure loss of filter becomes small with improved dust collecting efficiency and the filter can be replaced at an appropriate time.

    AIR CLEANER
    13.
    发明专利
    AIR CLEANER 失效

    公开(公告)号：JPH0283047A

    公开(公告)日：1990-03-23

    申请号：JP23395788

    申请日：1988-09-19

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： NAKAMA HIROTO ,  HIRAMATSU SAWAKO

    IPC: B03C3/155 ,  B01D46/18 ,  B03C3/14 ,  B03C3/28

    Abstract: PURPOSE:To reduce variations in air flow by increasing the effective area of an electret filter, reducing the filtration velocity of this filter to thereby reduce the pressure loss thereof and increase the dust collecting efficiency thereof and rolling the filter around a take-up device. CONSTITUTION:An electric discharge part 1 consisting of a discharge wire 2 and a plate electrode 3 is provided on the upstream side of air flow and an electret filter 6 movable by a take-up device 7 is provided on the downstream side thereof. The filter 6 is arranged in a wavy configuration. A pressure loss judging means 13, upon increasing of the pressure loss of the filter 6 above a predetermined pressure loss, makes the take-up device 7 thereof operative and, upon decreasing thereof to a predetermined pressure loss, the take-up device 7 thereof is brought to a stop. As a result, the pressure loss becomes small with improved dust collecting efficiency an reduced variations in the air flow.

    AIR CLEANER
    14.
    发明专利
    AIR CLEANER 失效

    公开(公告)号：JPH0283046A

    公开(公告)日：1990-03-23

    申请号：JP23396088

    申请日：1988-09-19

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： HIRAMATSU SAWAKO ,  NAKAMA HIROTO

    IPC: B01D53/38 ,  B01D53/34 ,  B01D53/74 ,  B03C3/02 ,  B03C3/14 ,  B03C3/155 ,  B03C3/28

    Abstract: PURPOSE:To contrive the maintenance of a deodorizer at longer intervals by detecting the odor amount of the air drawn in by an odor detecting means, judging whether or not the detected results exceed a predetermined value by an odor amount judging means, and, if they do, operating an ozonizing means for deodorization. CONSTITUTION:An electric charge part 1 consisting of a discharge wire 2 and a plate electrode 3 is provided on the upstream side of air flow and a dust collector 5 on the downstream thereof. An odor detecting means 11 detects the odor of the air drawn in and an odor amount judging means 12 finds out whether or not the signal from the means 11 exceeds a predetermined value. The discharge wire 2 produces ozone according to the judgement by the means 12. As a result, the deodorization can be effected as required and the deodorizer can be maintained at longer intervals.

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