JPS63176710U

JPS63176710U -

Info

Publication number: JPS63176710U
Application number: JP18157786U
Authority: JP
Priority date: 1986-11-26
Filing date: 1986-11-26
Publication date: 1988-11-16

Description

[Brief explanation of the drawing]

第１図はこの考案に係る自動車用空調装置にお
ける送風機駆動回路の一実施例を示す回路図、第
２図は同上の自動車用空調装置に用いられるモー
タアクチユエータの縦断面図、第３図はモータア
クチユエータに用いた基板の一部を示す平面図、
第４図はこの考案に係る自動車用空調装置の概略
構成図である。３６……可変抵抗器、３８……可動接点、３９
……抵抗体、４２ａ，４２ｂ……接点、４９……
マツクスハイリレー。 FIG. 1 is a circuit diagram showing an embodiment of the blower drive circuit in an automotive air conditioner according to this invention, FIG. 2 is a longitudinal cross-sectional view of a motor actuator used in the same automotive air conditioner, and FIG. 3 is a plan view showing a part of the board used for the motor actuator,
FIG. 4 is a schematic diagram of an air conditioner for an automobile according to this invention. 36... Variable resistor, 38... Movable contact, 39
...Resistor, 42a, 42b...Contact, 49...
Max High Relay.

Claims

[Scope of utility model registration request]

In an automotive air conditioner that adjusts the amount of heat exchange of air blown by a blower according to the opening degree of an air mix door driven by a motor actuator, a blower drive circuit that adjusts the rotation speed of the blower includes: The variable resistor includes a power transistor connected to the blower, a variable resistor for adjusting a base voltage of the power transistor, and a max-high relay for short-circuiting collector-emitter terminals of the power transistor. A movable contact provided in the motor actuator and operatively connected to the output shaft of the motor actuator, and a resistor on which the movable contact slides, the resistor having at least one end thereof 1. An air conditioner for an automobile, characterized in that a contact point for controlling a Max Hi-Relay is provided, and the Max Hi-Relay is operated by connecting a movable contact to the contact point.