Title:
換気装置
Document Type and Number:
Japanese Patent JP6681536
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a small-sized and less-expensive ventilator by making a common application of a power source circuit between a solenoid and a control circuit.SOLUTION: This invention comprises a blower 109, a driving part 8 for driving the blower, a shutter 105 for opening or closing an aeration passage of the blower, a feed-back part 4 for outputting a duty A corresponding to a voltage A or a duty B corresponding to a voltage B lower than the voltage A, a DC-AC converting circuit 2 for converting AC voltage into DC voltage, a step-down part 3 for decreasing DC voltage outputted by the DC-AC converting circuit on the basis of a duty from a feed-back circuit, a solenoid 1 keeping the shutter to an opened state upon receiving voltage A and keeping the shutter to an opened state upon receiving voltage B, a delay part 5 starting a charging of capacitor upon inputting voltage A and outputting that the charging is finished upon elapsing a predetermined time, the feedback part outputs the duty A to the step-down part until it receives an output from the delay part that the charging is finished and outputs the duty B to the step-down part upon reception from the delay part that the charging is finished.SELECTED DRAWING: Figure 3
Inventors:
Kun Fujimoto
Masahiro Yamaguchi
Kazuki Domoto
Nakajima line tree
Masahiro Yamaguchi
Kazuki Domoto
Nakajima line tree
Application Number:
JP2015250137A
Publication Date:
April 15, 2020
Filing Date:
December 22, 2015
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
F24F7/007; F24F7/013; F24F11/88
Domestic Patent References:
| JP4363530A | ||||
| JP2001314079A | ||||
| JP2008039313A | ||||
| JP2008089248A |
Attorney, Agent or Firm:
Kenji Kamada
Koichi Nomura
Koichi Nomura