KR970034494A - Automatic control of internal and external air - Google Patents

Abstract

The present invention is provided with an intake port 27 for sucking air from the outside of the vehicle, a blower 24 provided around the intake port 27 to introduce external air, and provided around the intake port 27 to be introduced from the outside. As a vehicle automatic ventilation control device consisting of a sensor unit 20 for reducing impurities and an internal and external air conditioner 30 for automatically switching the internal and external air in response to a signal from the sensor unit 20, the vehicle soot, dust When driving on many roads, the internal and external air conditioner 30 operates automatically to control the ventilation of the vehicle, which not only increases the convenience of driving but also detects the air pollution impurity detection sensor 23 not easily felt by the driver. More comfortable driving is possible, and when operating the internal / external air control switch 17 by manual operation while the vehicle is in operation, it can prevent the risk of an accident that may occur as the driver's nerves are dispersed. And it is.

Description

Automatic control of internal and external air

Since this is an open matter, no full text was included.

1 is a front view schematically showing the operation of the vehicle ventilation apparatus.

Figure 2 (a) is an internal schematic diagram of the self-regulating ventilation device according to the present invention, (b) is a schematic enlarged view of the sensor unit of the self-regulating ventilation device according to the present invention.

3 is a schematic circuit diagram of an automatic control ventilation apparatus for a vehicle according to the present invention.

Claims (3)

In the vehicle ventilation apparatus, an intake port 27 for sucking air outside the vehicle, a blower 24 connected to the intake port 27 to facilitate the inflow of external air, and a passage between the inside and the outside air of the vehicle. Discharge transducers 28a, 28b and 28c provided at a predetermined portion of the ventilation duct 26 to select the outlet of the external air, and a sensor unit 20 provided at the predetermined portion of the suction port 27 to detect impurities introduced from the outside. And the automatic ventilation control device for a vehicle, characterized in that consisting of the internal and external air control device 30 for automatically switching the internal and external air by the signal of the sensor unit (20). The method of claim 1, wherein the sensor unit 20 is composed of a filter 21, a filter box 22 and the impurity detection sensor 23, the air flowing from the outside through the inlet 27 The sensor unit 20 is introduced into the unit 20, and the sensor unit 20 passes the air introduced from the outside through the filter 21 and outputs the detected information to the impurity detection sensor 23 connected to the filter 21. Automatic ventilation control device for a vehicle, characterized in that sent to the outside air conditioner (30). According to claim 1, wherein the internal and external air automatic control device 30 is the external air control motor 34 is operated when the external air flows from the air conditioner 32 and the NOK signal is transmitted from the sensor unit 20 Connected to the end gate 1 (33) to make the vehicle air circulation bet, the internal air from the air conditioner 31 in the sensor unit 20 and the OK signal is transmitted from the sensor unit 20, the internal and external air The regulating motor 34 is connected to the AND gate 2 35 even when the vehicle air circulation is brought to the outside air state, and the AND gate 2 35 is connected to the diode 36 to prevent a malfunction due to reversal of current. Auto ventilation device for a vehicle, characterized in that connected. ※ Note: The disclosure is based on the initial application.