JPS60252019A - Personal ventilating apparatus for car - Google Patents

Abstract

PURPOSE:To prevent the dispersion of the dirty air such as the smoke of tobacco into a car interior by installing the inside-air discharging ducts onto the car-interior ceiling part corresponding to drivers' seats and controlling the operation of an inside-air discharging blower communicating to the ducts. CONSTITUTION:On the car-interior ceiling part of a passanger car, inside-air discharging ducts 1 are installed at the positions corresponding to the positions of passengers' seats, and the ducts 1 communicate to an inside-air discharging blower 3 through a group of air hoses 2. An outside-air introducing apparatus 5 and an air conditioning unit 30 are arranged inside an instrument panel A at the driver's seat, and a portion of the introduced air can be discharged into the car interior from an outside-air blowing-out port 7 on a car floor through an outside-air introducing duct 6. When the smoking by a driver is detected by the smoke sensors 8 arranged in the ducts 1, the inside-air discharging blower 3 is operated through a controller, and the outside-air introducing apparatus 5 and the air conditioning unit 30 are operated to compulsorily discharge the inside air to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ventilation system for a vehicle that can individually ventilate the vicinity of seats on each side of a passenger.

[Prior Art 1] Generally, as a method for ventilating the interior of a vehicle, particularly a passenger car, outside air is taken in from the front of the vehicle, passed through the interior of the vehicle, and then discharged to the outside of the vehicle from the rear of the vehicle.

Therefore, if the passenger in the front seat smokes, the passenger in the rear seat will naturally be exposed to the smoke, and the passenger in the seat next to him will also be bothered by the smoke. When the intake of outside air is stopped and the internal air circulation air conditioning is activated, the harmful effects of smoking are distributed evenly to other passengers, and a recent study reports that Even in light of experimental data showing that the quality and quantity of harmful components in smoldering smoke from the tip of a cigarette is much greater than in the smoke from the end of the cigarette, conventional vehicle interior ventilation is It is desirable that the method be revised.

[Object of the Invention] The present invention provides a method for cleaning the vicinity of each passenger's seat so that when the interior of a vehicle, particularly a passenger car, is partially contaminated with cigarette smoke, the contaminated air does not diffuse into the interior of the vehicle. The purpose is to provide a device for individual ventilation.

[Structure of the Invention] The personal ventilation system for a vehicle of the present invention includes a plurality of inside air exhaust ducts each installed in the ceiling of the vehicle interior corresponding to the seating position of each passenger, and an inside air exhaust blower connected to these ducts. and a means for controlling the operation of the blower, and is configured to be used together with an outside air introduction device.

According to a preferred embodiment of the present invention, the operation control means for the blower is a manual control panel for individually controlling or collectively controlling the power supply to the blower. Is there a smoke sensor installed in the vehicle interior, or is there a combination of a plurality of smoke sensors installed in the vehicle interior and an electronic control circuit that operates based on the signals from the sensors?
and the outside air introduction device are placed in an interlocking relationship.

[Effects of the Invention] The personal ventilation system for a vehicle having the above configuration has the following effects.

Inside air exhaust ducts dedicated to each passenger are installed in the ceiling of the vehicle cabin corresponding to each passenger's seating position, so smokers or other passengers can open these ducts by starting the inside air exhaust blower. The smoke is removed all at once, allowing non-smokers to completely escape the danger of being exposed to cigarette smoke.

[Example] Next, a personal ventilation system for a vehicle according to the present invention will be described based on an example shown in the drawings.

FIG. 1 is a perspective view of the device of the present invention installed in a passenger car, in which internal air exhaust ducts 1 are installed on the ceiling of the vehicle interior at locations corresponding to the seating positions of each passenger. Each duct 1 is connected by an air hose group 2 to an inside air exhaust blower 3 installed in the trunk room. Reference numeral 4 indicates an outlet for discharging exhaust gas from the blower 3 to the outside of the vehicle.

In addition, inside the driver's seat instrument panel A in the vehicle interior, an air mix type vehicle air conditioner unit 30 equipped with an outside air introduction device 5 for air conditioning the vehicle interior, an evaporator for cooling, and a heater core for heating is arranged. A part of the introduced air passes through the outside air introduction duct 6 and is discharged into the passenger compartment from an outside air blowing lower provided on the floor of the passenger compartment. Furthermore, a smoke sensor 8 is arranged close to each internal air exhaust duct 1.

As shown in FIG. 2 as a plan view and FIG. 3 as a side view, the inside air exhaust duct 1 has a main body made of a mild steel plate with a thickness of 0.8 mm and a flat trapezoid with a rectangular bottom. The air suction port 1a is formed on the top surface and each slope. A stainless steel wire mesh 9 for dustproofing is applied to the air intake port 1a, and an aluminum cover plate 10, which serves both to fix the wire mesh 9 and for aesthetic purposes, is attached to the outside of the main body by screws 11 or by other methods. be done. Moreover, a pipe-shaped joint 12 for connecting the a hose 2 is attached to one slope of the inside air exhaust duct 1. The main body is fixed to the top H of the vehicle body using a permanent magnet 13 placed on the periphery of the bottom surface of the main body.

Next, in FIG. 4, which is a block diagram showing the configuration of the device of the present invention incorporating a smoke sensor, the signals emitted by the smoke sensor group 8 arranged near each passenger seat are transmitted to the electronic control circuit. 17 analyzes the information and issues a command to the drive circuit 18 that controls the operation of the inside air exhaust blower 3, and at the same time sends an instruction to the drive circuit 19 that operates the outside air introduction device 5. Further, in parallel with these, a control signal is also input to the drive circuit 16 of the inside/outside air switching damper 15 for vehicle interior air conditioning.

The electronic control circuit 17 includes a lever 14 for adjusting the ventilation ff1l.
, a vehicle room temperature setting dial 23 , an inside temperature sensor 20 , an outside temperature sensor 21 , and an engine coolant temperature sensor 22 . Therefore, this electronic control circuit 17 also has a function as an automatic control circuit for the vehicle interior heating and cooling system.

When any occupant starts smoking in a vehicle incorporating the above-described system, the smoke sensor 8 near the smoking position issues a signal to the electronic control circuit 17, and the entire air conditioning system including heating and cooling starts functioning. When the heating and cooling system is already in operation, ventilation is added to remove smoke. During this smoke exhaust operation, the signals from the vehicle room temperature setting dial 23 and the air volume adjustment lever 14 of the outside air introduction device 5 do not function effectively. Electronically controls the operation of comparing the maximum value of the signals emitted by each smoke sensor based on the recorded data that determines the optimal ventilation amount for each combination of several levels of temperature difference values. It is determined by what is done within the circuit 17. At that time, the temperature difference value between the inside and outside of the vehicle is determined by the temperature sensor 20.
It can be known by the input from ~22. Then, the electronic control circuit 17 operates the drive circuit 18 of the inside air exhaust blower 3 and the drive circuit 19 of the outside air introduction device 5 at their respective desired speeds based on the command based on the optimum ventilation amount data. On the other hand, the inside/outside air switching damper 1
5, the drive circuit 16 operates simultaneously with the input of the smoke generation signal to switch to the outside air introduction side, corresponding to the inside air exhaust state. The outside air is passed through an air conditioning unit 30 under the control of an electronic control circuit 17 to achieve the desired air mix. To give an example of a specific situation in which the amount of ventilation should be increased or decreased, when the amount of smoke is high but the temperature difference between the inside and outside is not very large, it is often possible to rapidly increase or decrease ventilation by introducing a large amount of outside air without performing an air mix. Provide ventilation. Alternatively, when the amount of smoke generated is small but the temperature difference between the inside and outside of the vehicle is large, a sufficient air mix is applied and the ventilation speed is set to a low state. When the signal from the heating sensor 8 stops, the ventilation operation is stopped, the functions of the vehicle room temperature setting dial A full 23 and the air volume adjustment lever 140 are restored, and the normal heating and cooling operation state is restored. When cigarette smoke begins to fill the interior of the vehicle, the smoke sensor 8 and the electronic control circuit 17 work together to quickly start smoke evacuation without requiring any human intervention, and the smoke evacuation ends. Afterwards, the driver can once again enjoy the comfortable environment inside the vehicle due to the operation of the automatic air conditioner 30.

Incidentally, as shown in FIG. 1, by providing an outside air blowing lower on the floor of the passenger compartment, smoke diffusion can be prevented by the air curtain effect in parallel with the above-mentioned υ1 smoke operation.

Next, as another embodiment of the present invention, the case where the manually operated device of the present invention is incorporated will be explained with reference to the block diagram shown in FIG. 5. Turn the switch on the ventilation control dial 24, which also serves as a switch for starting operation and a dial for increasing/decreasing ventilation speed, to O.
At the same time, this electric signal is input to the electronic control circuit 25 by turning the volume appropriately according to the amount of smoke generated, and first, the drive circuit 16 of the inside/outside air switching damper 15 instructs the outside air introduction state. At the same time, signals are also sent to the drive circuits 18 and 19 of the inside air exhaust blower 3 and the outside air introduction device 5, respectively, and the blower 3 and the outside air introduction device 5 start operating. The rotational speeds of the blower 3 e and the outside air introduction device 5 are determined in accordance with the largest specified ventilation speed value sent from the ventilation control dial group 24 . This method is characterized by the fact that it leaves room for consideration of different people's sensibilities regarding the degree of ventilation in the vehicle interior, and it is also inexpensive in terms of cost. FIG. 6 shows a plan view of the ventilation control die 24.

In addition, methods for automatically ventilating the vehicle interior are not limited to smoke sensors; for example, a sensor that detects C○ and CO2 in the vehicle interior is installed, and the signal from this sensor is input to the control device to operate the ventilation system. You may also do so.

In the embodiment shown in FIG. 1, the outside air taken in by the outside air introduction device 5 is discharged into the passenger compartment from the outside air Suita lower provided on the floor. As shown in the figure, if a method is adopted in which outside air for ventilation is introduced into the passenger compartment from the vent outlet 40 provided on the instrument panel A in front of the driver's seat instead of the floor outlet, the device of the present invention can be applied to existing vehicles. It is also easy to use.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the device of the present invention installed in a passenger car, Figs. 2 and 3 are a plan view and a side view of the inside air exhaust duct, and Fig. 4 is a means for starting the smoke evacuation operation. Figure 5 is a block diagram of a device of the present invention that incorporates a smoke sensor, Figure 5 is a block diagram of a device that incorporates a manual operation dial in place of the smoke sensor, and Figure 6 is a plan view of a ventilation control dial. FIG. 7 is a perspective view of another embodiment in which the device of the present invention is mounted on a passenger car. In the diagram: 1...Duct for discharging internal air 2...Air hose 3...Blower for discharging internal air 5...Outside air introduction device 8
...Smoke sensor -5...Inside and outside air switching damper 17.
25...Electronic control circuit 18.19...Drive circuit for internal air discharge blower and outside air introduction device 24...Ventilation control dial 30...Air conditioner unit 40...Vent outlet agent Kenji Ishiguro Figure 4, J 14 Figure 5 Figure 6

Claims (1)

[Scope of Claims] 1) In a vehicle equipped with an outside air introduction device, a plurality of inside air exhaust ducts each installed in a central interior portion corresponding to the seating position of each occupant, and an inside air exhaust duct connected to these ducts. 1. A personal ventilation system for a vehicle, comprising a combination of a blower and an operation control means for the blower. 2) A personal ventilation system N for a vehicle according to claim 1, wherein the operation control means for the blower is a manual control I panel for intermittent or increasing/decreasing power supply to the blower; . 3) Claim 1, wherein the manual control panel is configured to be operated individually by each passenger.
The personal ventilation system for a vehicle according to item 1 or 2. 4) The blower operation control means is installed in the vehicle interior.
[The personal ventilation system for a vehicle according to claim 1, comprising a combination of a plurality of smoke sensors and an electronic control circuit that operates based on signals from the smoke sensor. 5) The vehicle perrnall ventilation system according to any one of claims 1 to 4, wherein the blower and the outside air introduction device are placed in an interlocking relationship.