| 摘要 |
PURPOSE:To improve the operation-ability of the switches of air conditioner for car, by arranging the operation switches for the amount of air blow and heat conversion vertically and horizontally respectively in the form of matrix, and putting the logic sum of respective row into the control media to the amount of air blow and heat conversion. CONSTITUTION:The operation switches for the amounts of air blow and heat conversion are allotted to the push-button switches 1-9 arranged in three lines and three rows on the switch panel, the numbers of rotation of the blower are indicated on the side of row, and the degrees of the open air temperature on the side of line, respectively. By depressing the respective switches 1-9 and OFF switch 10, D-T flip-flop 11 will become the level H, and the single stabilized multivibrator 20 will become the level H after the predetermined time going by. Then, the blower motor 106 is controlled by the blower motor control circuit 106a through the trigger of flip- flop 11, and the opening of the water cock 30 is controlled through the control circuit 29a. Thus, operability of the air conditioner will be increased by arranging the switches in the form of matrix. |
