JPH0137285B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a vehicle air conditioner that air conditions the space of a vehicle such as an automobile.

Configuration of conventional example and its problems As shown in FIG. 1, this type of conventional vehicle air conditioner includes a main body 1 that takes in and harmonizes air from inside and outside the vehicle and discharges it into the vehicle; The device was comprised of a temperature sensor 2 that detects the temperature in a space, and a control means 3 that operates the main body 1 based on the difference between a signal from the temperature sensor 2 and a set value. In this configuration, when the signal from the temperature sensor 2 differs from the value set to maintain a comfortable space in the vehicle, the control means 3 operates the main body 1 and controls the physical quantity of the conditioned air to be discharged. As a result, during long-distance driving, the physical quantity of the conditioned air discharged into the space of the vehicle becomes stable and less irritating, which can combine with the fatigue caused by long-distance driving and cause drowsiness, which is dangerous. This is especially dangerous when driving on a highway, where the driving maneuvers are simple and the speed is constant.

Purpose of the invention The present invention solves such conventional problems,
The purpose is to prevent drowsiness when driving for long periods of time.

Structure of the Invention In order to achieve this object, the present invention includes a main body that takes in and harmonizes air from inside and outside the vehicle, and then discharges the air into the vehicle. The apparatus is provided with a changing means for temporally changing the physical quantity of the conditioned air, and a control means for generating a signal for operating the changing means in response to a signal from the change detecting means.

With this configuration, when the speed of the vehicle does not change for a certain period of time, such as when driving for a long time on a highway, the physical amount of conditioned air discharged into the vehicle can be changed over time, providing stimulation to the occupants. It has the effect of preventing sleepiness.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2, 3, and 4.

A main body 1 that takes in and harmonizes air from inside and outside the vehicle and discharges it into the vehicle based on the difference between a signal from a temperature sensor 2 that detects the temperature of the space in the vehicle and a set value.
A changing means 4 consisting of a motor 7, a link mechanism 8, and a movable vane 9 is provided to temporally change the discharge direction of the conditioned air discharged into the vehicle, and receives a signal from the speedometer 5 and calculates the rate of change. The signal from the change detection means 6, which has a built-in calculation unit that determines that the vehicle speed has been intentionally changed based on the calculated rate of change value and generates a change signal, is a signal that remains unchanged for a certain period of time. Control means 3 are provided for generating a signal which activates the changing means 4 when .

In the above configuration, when the driving operation is simple without changing the speed for a certain period of time, the signal from the change detection means 6 becomes a signal that does not change for a certain period of time, and the control means 3 discharges the conditioned air into the vehicle in the discharge direction. It automatically acts to turn on the changing means 4 consisting of the motor 7, the link mechanism 8, and the movable blade 9, which changes the speed over time, and stimulates the driver, thereby reducing the combination of simple driving operations and fatigue. This has the effect of preventing you from becoming drowsy and allowing you to continue driving safely.

In this embodiment, the air discharge direction has been described as a physical quantity of the conditioned air discharged into the vehicle that changes over time. The same effect can be obtained even if

Furthermore, although a means for detecting speed by a signal to a speedometer has been described as a speed detecting means, the same effect can be obtained even if an original speed detecting means is used.

Effects of the Invention As described above, the vehicle air conditioner of the present invention provides the following effects.

(1) The configuration generates a signal that turns on the change means when the signal from the change detection means remains unchanged for a certain period of time, so the speed of the vehicle remains constant, such as when driving for a long time on an expressway. It has the effect of temporally changing the physical quantity of the conditioned air discharged into the vehicle when it does not change over time, and has the effect of stimulating the occupants and preventing them from becoming drowsy.

(2) Since the signal sent to the speedometer is used as the change detection means, the structure is simple, and the effect can be obtained reliably at low cost.

(3) As the change detection means detects the speed by receiving a signal from the speedometer, when the speed changes frequently and requires attention, no unnecessary stimulus is given, so there is no fatigue in driving.

(4) The changing means is configured to temporally change the discharge direction of the conditioned air discharged into the vehicle, so it only stimulates the occupants without changing the temperature of the vehicle space, improving comfort. There's nothing to lose.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing the configuration of a conventional vehicle air conditioner, FIG. 2 is a schematic diagram showing the configuration of an embodiment of the vehicle air conditioner according to the present invention, and FIG. 3 is a schematic diagram showing the configuration of a vehicle air conditioner according to the present invention. A schematic diagram of a front panel of a vehicle showing the configuration of a change means and a change detection means of an air conditioner;
FIG. 4 is a schematic diagram showing the configuration of the changing means of the vehicle air conditioner according to the present invention. 1... Main body of vehicle air conditioner, 3... Control means, 4... Changing means, 5... Speed meter,
6...Change detection means.

Claims (1)

[Claims] 1. A main body that takes in and harmonizes air from inside and outside the vehicle and discharges it into the vehicle, a change detection means that detects a change in vehicle speed, and a physical quantity of the conditioned air that is discharged into the vehicle. What is claimed is: 1. A vehicle air conditioner comprising: a changing means for temporally changing the change in temperature, and a control means for generating a signal for operating the changing means when a signal from the change detecting means is a signal that does not change for a certain period of time. 2. The change detection means includes a speedometer, a calculation unit that receives a signal from the speedometer and calculates the rate of change, and determines from the value of the rate of change that the vehicle speed has been intentionally changed and generates a change signal. The vehicle air conditioner according to claim 1, which comprises a determination section. 3. The air conditioner for a vehicle according to claim 1 or 2, wherein the changing means temporally changes the discharge direction of the conditioned air discharged into the vehicle.