JPH038285B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention detects the degree of cigarette contamination in the interior of a vehicle and adjusts the operating state of air purifying means such as an air conditioning unit, ventilation system, or air purifier. The present invention relates to an air purifying device for an automobile.

[Conventional technology]

Conventionally, as disclosed in, for example, Japanese Utility Model Publication No. 41-1030, there has been known a system that detects dirt in the air inside a vehicle and automatically operates an air purifying device inside the vehicle.

The problem with detecting air contamination in such devices is that the response sensitivity of the detection element is slow, and the air flow conditions within the vehicle cabin are not constant, and the air conditioner may be affected by the usage of the air conditioning unit or window glass, or the smoking method of the occupants. This is because the responsiveness of detecting air pollution changes due to individual differences.

On the other hand, there is also a system that detects the use of smoking implements in the passenger compartment and activates the air purification device, as disclosed in Japanese Utility Model Application Publication No. 53-25043. is activated, giving the occupants a sense of discomfort.

In this way, simply activating the air purification device by using a smoking device will be a wasteful operation.
In addition, there is a problem in that the air pollution detection response becomes unstable if the air purification device is automatically activated when air pollution is detected.

[Problem that the invention seeks to solve]

In view of the above-mentioned problems, the present invention aims to detect air pollution with high responsiveness by increasing the detection sensitivity of air pollution when smoking tools are used, without activating the air purification device unnecessarily. The purpose of this invention is to provide an air purification device for automobiles that can be used in vehicles.

[Means for solving problems]

For this reason, the present invention includes: a first signal generating means disposed in the vehicle interior that generates an electric signal corresponding to the degree of air pollution; and a first signal generating means that is activated in response to the electric signal from the first signal generating means. An air purifying device for an automobile, comprising: an air flow generating means for sucking air inside the vehicle to generate an air flow near the first signal generating means; and a smoking device provided in the vehicle. second signal generating means for generating an electrical signal in response to the second signal generating means; and in response to the electrical signal from the second signal generating means, increasing the air flow by the air flow generating means from the beginning of use of the smoking implement. The technical means of providing a control means is adopted.

[Effect]

According to the present invention, the air purifying means is automatically activated in response to dirt in the air in the vehicle interior, and the air flow generating means is activated in the vehicle interior in response to the first signal generating means for detecting air pollution. Air flow is provided by sucking air.

In the present invention, the responsiveness of the first signal generating means is improved by actively introducing dirty air into the vehicle interior through the airflow generating means.

Further, the airflow generating means is caused to increase the airflow by the control means in response to a second signal generating means responsive to use of a smoking implement within the vehicle compartment.

This increases the responsiveness of the first signal generating means to air pollution in response to the increased possibility of smoking inside the vehicle.

〔Effect of the invention〕

As described above, according to the present invention, when the possibility of smoking inside the vehicle increases, the response to air pollution is automatically increased, so that when someone actually starts smoking, this is detected as soon as possible and the air is automatically removed. The air purifying means can be operated, and even when not smoking, unnecessary operation of the air purifying means can be prevented.

〔Example〕

The present invention will be described below with reference to the illustrated embodiments.
In the attached drawings, reference numeral 1 denotes a detection element (first signal generation means), which has a light emitting element 1B and a light receiving element 1C in a case 1A, and the light receiving element 1C is scattered by particles such as cigarette smoke. The light emitting element 1B is arranged so that the amount of light reaching the light emitting element 1B increases. A photo-electrically converted electrical signal generated at the light receiving element 1C in the detection element 1 is given to the amplifier circuit 2. The amplifier circuit 2 is configured to preamplify and smooth an input electrical signal and then compare the signal with a reference signal. Here, if necessary, a predetermined hysteresis is added to the comparison with the reference signal. A switch element 3 consisting of a relay is connected to the output stage of the amplifier circuit 2.

Reference numeral 4 indicates an air purifier (air purifying means).
The air cleaner 4 includes an electric blower 4A, an activated carbon filter 4B, an electric precipitator 4C, and a high voltage generator 4D for dust collection. When the air purifier 4 applies a DC power (electrical signal) to the line 5,
The electric blower 4A generates airflow and exhibits an air purifying effect. The line 5 is connected to a power supply terminal 7 via a switch element 3 operated by the output of the amplifier circuit 2 and another switch element 6. The switch element 6 can be a key switch of the vehicle, a switch that is connected to the opening and closing of a window glass, or a switch that is linked to the outside air introduction state of an air conditioning unit. To stop an air purifier 4 from operating when there is sufficient ventilation effect. Further, the switch element 6 includes the detection element 1,
It is assumed that power is supplied to the amplifier circuit 2 and a timer circuit 10, which will be described later.

A small electric blower (airflow generating means) 8 is attached to the detection element 1 to generate an airflow passing through the case 1A. When a DC power supply (electrical signal) is applied to the line 9, this blower 8 operates in the case 1A.
The airflow inside the vehicle is generated at an appropriate speed to take in the air inside the vehicle, thereby increasing the response sensitivity of the detection element 1.

The line 9 is connected to a timer circuit 10 and a diode 11 so that DC power is supplied from both of them. The timer circuit 10 is connected to receive a DC power source (electrical signal) from an ashtray switch (second signal generating means) 12 that is linked to the use of the ashtray. The ashtray switch 12 is connected to the power supply terminal 13, and closes with the ashtray pulled out in response to an operation to pull out the ashtray provided in the vehicle.
DC power is supplied to the timer circuit 10. The timer circuit 10 has an on-delay function, and when the ashtray switch 12 is closed, the timer circuit 10 is activated for a certain period of time (for example, 20
DC power is applied to line 9 for a period of 2 seconds). A diode 11 is connected between line 5 and line 9 and provides DC power to line 9 while switch element 3 is closed. In this embodiment, the timer circuit 10 and the diode 11 correspond to the control means of the present invention.

This device operates as follows. That is,
When the switch element 6 is turned on, power is supplied to each part and the device is activated. In this state, when the ashtray switch 12 is closed, DC power is applied to the line 9 via the timer circuit 10, and the electric blower 8 generates an air flow inside the case 1A of the detection element 1.
This increases the detection sensitivity of the detection element 1,
An electric signal sensitively responsive to the degree of air pollution is sent to the amplifier circuit 2. When the amplifier circuit 2 determines that the degree of contamination is greater than the standard, the switch element 3
is closed. As a result, the air purifier 4 starts its air purifying action. Although the DC output of the timer circuit 10 disappears after a predetermined period of time has passed after the ashtray switch 12 is closed, DC power is supplied to the line 9 via the diode 11 while the air purifier 4 is operating. , the electric blower 8 continues to operate and maintains the detection sensitivity of the detection element 1 in a high state. Eventually, the electric signal of the detection element 1 changes as the degree of air pollution decreases, and when the amplifier circuit 2 outputs an electric signal that opens the switch element 3, the operation of the air purifier 4 is stopped, and The electric blower 8 is also stopped and the sensitivity of the detection element 1 is returned to its initial state.

If the amplifier circuit 2 closes the switch element 3 due to the electrical signal of the detection element 1, such as when smoking without using an ashtray, the DC power of the line 5 is applied regardless of the timer circuit 10. The electric blower 8 is activated and stopped based on this.

It should be noted that the present invention is not limited to the above-described embodiments, but can also be modified as shown below based on the technical idea described in the claims.

(1) The second signal generating means responsive to the use of a smoking implement is not limited to the ashtray switch 12, but a switch linked to the use of a cigarette lighter may also be used. Furthermore, if a cigarette storage case is provided, a switch that is linked to opening of the case may be used.

(2) In the control means, the timer circuit 10 may not be used if necessary, and the switch 12 may not be used.
DC power may be supplied to the line 9 while the line 9 is closed, and an off-delay may be added.

(3) In addition to the illustrated air purifier 4, the air purifying means may include a device that opens a window glass, a device that changes the air intake of an air conditioning unit from inside air to outside air, and the like.

(4) The airflow generation means include not only the electric blower 8 but also
It may also be one that vibrates to generate an air signal or one that generates thermal convection.

(5) In the control means, the diode 11 can be replaced with another configuration that operates the electric blower 8 in accordance with the output state of the amplifier circuit 2. For example, although wires 5 and 9 are both power supply lines, it is also possible to use them as signal lines and add a switch element operated by the signal line, so that the switch element opens and closes the power supply line. good.

(6) The timer circuit 10 and diode 11 in the control means may actually function as a logic circuit, and in this sense, they can be replaced with other configurations that similarly satisfy the logic conditions, such as a microcopy device.

[Brief explanation of drawings]

The accompanying drawings are configuration diagrams showing one embodiment of the present invention. 1...detection element (first signal generating means), 2...
...Amplifying circuit, 3... Switch element, 4... Air purifier (air purifying means), 8... Electric blower (air flow generating means), 11... Diode (element constituting control means).

Claims (1)

[Claims] 1. A first signal generating means disposed in the vehicle interior and generating an electric signal corresponding to the degree of air pollution; and a first signal generating means activated in response to the electric signal from the first signal generating means. An air purifying device for an automobile, comprising: an air flow generating means for sucking in cabin air to generate an air flow in the vicinity of the first signal generating means; and a smoking implement provided in the vehicle. second signal generating means for generating an electrical signal in response to use; and responsive to the electrical signal from the second signal generating means, increasing the air flow by the air flow generating means from the beginning of use of the smoking device. An air purifying device for an automobile, comprising a control means for controlling the air purifying device. 2. The air purifying device for an automobile according to claim 1, wherein the control means includes a timer means for increasing the air flow for a predetermined period of time from the start of use of the smoking implement. 3. The control means includes: a first control means responsive to an electrical signal from the first signal generation means to increase the air flow when air pollution is detected; and a second signal generation means. 2. An air purifying device for a motor vehicle according to claim 1, further comprising second control means responsive to an electrical signal from said smoking device to increase said airflow from the beginning of use of said smoking device.