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Patent Searching and Data


Title:
AIR QUANTITY CONTROLLER FOR CAR AIR CONDITIONER
Document Type and Number:
Japanese Patent JPS59209906
Kind Code:
A
Abstract:

PURPOSE: To eliminate the blowing of a continuous current against the face as well as to aim at improvements in driving comfortableness, by changing the impressed voltage of a blower motor into a periodic or irregular mode in time of turning an air blowoff mode to a sense of blowing toward the face.

CONSTITUTION: One end of a blower motor 2 is connected to a power source 1 and the other end is connected to a register 3. Likewise, the register 3 is connected to a ground wire 5 via a fan switch 4. And, when a ventilating switch 8, which is turned to ON only when the fan switch 4 is turned to OFF and a select switch 7 is set to a blowoff mode toward the face, a pulse signal whose period varies with time is inputted into a digital-analog converter 9 from a controller 6. With this constitution, the base voltage of a power transistor 10 is made to vary with time, controlling rotation of the blower motor 2 and changing the air quantity. Therefore, the blowing of a continuous current against the face is thus eliminated.


Inventors:
OKUDA HIDENORI
KAGOROKU NOBUO
HONDA SHIYUUICHI
IWANAMI KUNIO
Application Number:
JP1983000081783
Publication Date:
November 28, 1984
Filing Date:
May 12, 1983
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
B60H1/00; F24F11/02; (IPC1-7): B60H3/00; F24F11/04
Domestic Patent References:
JPS51149156U1976-11-29
JPS56118321U1981-09-09
JPS5730610U1982-02-18
JPS5217879U1977-02-08
JPS5653908A1981-05-13
JPS55113617U1980-08-11