JPH09118198A - On-vehicle air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle theft warning function and a carbon monoxide infiltration warning function in an air cleaner, simplify an apparatus, and make common use of wiring by integrally arranging a room lamp interlocking with a door and a buzzer to warn an entrance of a person at parking time and infiltration of a carbon monoxide in an air cleaner main body. SOLUTION: When a fan is manually operated by an operation part 9b, dust and dirt in air sucked in from an intake air port by operation of the fan by a control part 14 are removed by a filter, and cleaned air is sent outside from an exhaust port, and air in a cabin is cleaned. On the other hand, separately from air cleaning operation, the control part 14 processes these signals by receiving signals from a human entrance detecting part 5, a carbon monoxide infiltration detecting part 6 and a door switch judging part 19, and warns an entrance of a person into a vehicle and infiltration of a carbon monoxide into the vehicle by a buzzer by a buzzer driving part 8c, and announces these by lamp flashing by a lamp driving part 8a, and displays the concentration of a carbon monoxide by a display part 10b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle air cleaning device for cleaning air in a vehicle compartment and having a vehicle theft alarm function and a carbon monoxide intrusion alarm function.

[0002]

2. Description of the Related Art FIG.
It is an installation drawing which shows the structure of the conventional air purifying apparatus shown by the 4th publication. In the figure, 1 is an intake port 1a and an exhaust port 1
In the main body case provided with b, a lamp 2 that turns on and off in association with the door is provided. The main body case 1 is installed in a room lamp section 11 of a vehicle interior ceiling. Further, the main body case 1 is provided with an operation portion so that the lamp 2 and the fan can be manually operated.

The air purifying apparatus as described above is installed in the vehicle interior ceiling room lamp portion 11, but the vehicle interior ceiling room lamp portion 11 is usually provided with wiring from the battery and wiring from the door switch. Therefore, the dedicated wiring for the power supply for the air purifier is installed in the vehicle interior ceiling room lamp section 11
You don't have to go around.

On the other hand, FIG. 9 shows, for example, the actual open flat 3-24450.
FIG. 4 is a block diagram of a conventional vehicle burglar alarm device disclosed in Japanese Patent Publication No. In the figure, 20 is a bonnet switch, and 21
Is a right front door switch, 22 is a right rear door switch, 23 is a left front door switch, 24 is a left rear door switch, 25 is a trunk switch, 26 is an opening / closing detection unit, 27 is a transmitting unit, 28 is a receiving unit, and 29 is a sounding unit. , 30 are antennas. Such a theft alarm device for a vehicle is provided with switches 20 to 25 at the opening / closing portion of a door or the like, and the open / close detection unit 26 detects the open state of this portion. By this detection, a radio wave is transmitted from the transmission unit 27 and the radio wave emitted by the transmission unit 27 is received by the reception unit 28.
In response to this reception, a signal sound is generated in the sounding unit 29 to notify the abnormality.

[0005]

By the way, the air purifying device and the vehicle theft alarm device are originally different and are installed separately. In general, an on-vehicle air cleaning device is installed in a ceiling lamp in a vehicle interior room to clean the air inside the vehicle interior, whereas a vehicle theft alarm device is installed inside a dashboard. In addition to the air purifying device and the vehicle theft alarm device, it is necessary to install a buzzer separately when the carbon monoxide intrusion alarm is used with a buzzer, so the equipment is complicated and the wiring becomes complicated. There was a problem.

The present invention has been made in order to solve the above problems, and simplifies the equipment and makes the wiring common by providing an air purifying device with a vehicle theft alarm function and a carbon monoxide intrusion alarm function. The purpose is to

[0007]

SUMMARY OF THE INVENTION An in-vehicle air purifying apparatus according to the present invention is provided with an intake port, an exhaust port, a fan for sucking air in a vehicle compartment from the intake port, and a dust collection for the air flowing in by the fan. A vehicle interior ceiling room lamp that turns on and off in conjunction with a door in the vehicle-mounted air purifying device in which an air purifier body having a deodorizing filter is provided on a ceiling in a vehicle compartment, A power source and wiring are shared for the cabin interior room lamp, the air purifier, and the alarm buzzer by integrally providing a buzzer that warns of intrusion of people or ingress of carbon monoxide into the vehicle interior during parking. Is.

Further, the in-vehicle air purifying apparatus according to the present invention collects dust and deodorizes the intake port, the exhaust port, the fan for sucking the air in the passenger compartment from the intake port, and the air flowing in by the fan. In an in-vehicle air purifying device having an air purifier body having a filter on a ceiling in a vehicle compartment,
In the air purifier body, a room interior ceiling lamp that turns on and off in conjunction with a door, a detection unit that detects intrusion of a person while parking, and an intrusion of a person into the vehicle by an output signal of this detection unit By integrally providing a buzzer for alarming and the room lamp and a control unit for controlling the buzzer, the power supply and wiring for the vehicle interior ceiling room lamp, the air purifier, the alarm buzzer, and the detection unit are shared. It was done.

Further, the detection section is adapted to detect a voltage fluctuation of the power source and output a detection signal of intrusion of a person. Further, in the above structure, the main body case of the air purifier is provided with a carbon monoxide detecting section and a buzzer for alarming the intrusion of carbon monoxide into the vehicle compartment by the output of the detecting section.

Further, in the above structure, the buzzer for warning the intrusion of the passenger compartment and the buzzer for the warning of carbon monoxide intrusion are shared.

Further, in the above structure, the room lamp in the vehicle interior is made to blink when an alarm is issued by the buzzer.

Further, in the above structure, the alarm buzzer is sounded after a predetermined time from the time when the human intrusion detection unit detects the human intrusion.

Further, in the above structure, the alarm buzzer sounds in a small sound after a fixed time elapses from the time when the intrusion of the person is detected by the human intrusion detection unit, and in a large sound after a predetermined time elapses.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. An embodiment of the present invention will be described below with reference to FIGS.
Referring to FIG. FIG. 1 is a block diagram showing an air cleaning device according to the present invention. In FIG. 1, 2 is a lamp that is turned on and off in conjunction with a door, 3 is a fan that sucks air in the vehicle interior, 5 is a detection unit that detects the intrusion of a person into the vehicle interior during parking, and 6 is a light emitted from the vehicle interior. A detection unit for detecting the intrusion of carbon monoxide, 7 is a buzzer for alarming the intrusion of a person by the detection unit 5 and the intrusion of carbon monoxide into the vehicle interior by the detection unit 6, 14
Is a control unit that controls the lamp 2, the fan 3, and the buzzer 7,
Is an operating unit for manually operating the lamp 2 and the fan 3, and 10 is a display unit for displaying the operating state of the fan 3 and the concentration of carbon monoxide by the detection unit 6.

FIG. 2 is a circuit diagram showing an example of the specific electrical connection of FIG. In FIG. 2, the detection unit 6 is composed of a carbon monoxide sensor 6a, and the carbon monoxide sensor 6a is
The internal resistance value changes depending on the carbon monoxide concentration, and the carbon monoxide concentration is detected based on the change in the output voltage. 8a
Is a lamp driving unit that drives the left and right door lamps 2a and 2b, 8b is a fan driving unit that drives the air cleaning fan motor 3a, and 8c is a buzzer driving unit that drives the alarm buzzer 7. Reference numerals 9a and 9b are a lamp operating portion and a fan operating portion, and 10a and 10b are a fan operating state display portion and a carbon monoxide concentration display portion, respectively. Reference numeral 13 is a door switch installed in the vehicle, and 13a is another auxiliary device such as a door lock control device. Reference numeral 14 is a control unit that performs central processing, and includes an input circuit 14a, an arithmetic circuit 14b, and an output circuit 1.
4c, RAM 14d, and ROM 14e. 19 is a door switch determination unit, which is a transistor 1
9a and resistors 19b and 19c. The outputs of the human intrusion detection unit 5, the carbon monoxide intrusion detection unit 6, the operation unit 9, and the door switch determination unit 19 are input to the control unit 14, and the signals from the control unit 14 are the drive units 8a and 8b. 8c,
And the display units 10a and 10b.

FIG. 3 is a circuit diagram showing an example of specific electrical connection of the human intrusion detection section 5 in FIG. In FIG. 3, 15 is a bandpass filter circuit, 16 is a pulse shaping circuit, and 17 is a constant voltage circuit.

FIG. 4 is a voltage waveform diagram of a signal in each part of FIG. Waveform A in FIG. 4 is the battery 12 (point P in FIG. 3)
Of the voltage waveform diagram of the output of the band-pass filter circuit 15 (Q point in FIG. 3), and C of the pulse shaping circuit 16
FIG. 4 is a voltage waveform diagram of the output (point R in FIG. 3) of FIG. The horizontal axis is the time axis, indicating that the engine stopped at t ₀ , and
This indicates that the voltage of the battery 12 has changed at t ₁ .

In the detection unit 5, the voltage of the battery 12 is constant when the engine is stopped, but when the engine is started, the ignition noise or the like as shown in the voltage waveform A is superimposed on the voltage of the battery 12. To do. Further, if the lamp is turned on by opening the door or the trunk or the door lock device is operated by unlocking the door, noise due to the voltage fluctuation of the battery 12 is generated as shown at t ₁ . Also, noise is similarly generated by removing an in-vehicle electrical component such as a car audio. By passing through the bandpass filter circuit 15, this noise has a voltage waveform corresponding to the noise signal as shown in FIG. The voltage waveform as shown in FIG. 4B is converted into the pulse train as shown in FIG. 4C by the pulse shaping circuit 16 and input to the control unit 14. The control unit 14 receives the output waveform of the battery voltage fluctuation detected by the detection unit 5 and determines whether the engine has started or a person has entered.

FIG. 5 is a partial sectional plan view showing the external appearance of the air cleaning apparatus according to the present invention. In FIG. 5, 1 is a main body case having an intake port 1a and an exhaust port 1b, 2a, 2b
Is a lamp disposed on the left and right of the main body case 1, 4 is a filter for collecting dust and deodorizing the air flowing in by the fan 3, 18 is a printed circuit board on which the detection unit 5, the operation unit 9, and the buzzer 7 are arranged. is there. Reference numerals 9a and 9b are a lamp operating portion and a fan operating portion, and 10a and 10b are a fan operating state display portion and a carbon monoxide concentration display portion, respectively.

FIG. 6 is a diagram showing the installation of the air cleaning device in the vehicle compartment. As shown in FIG. 6, in most domestic cars, a battery 1 is used as a power source for the room interior ceiling room lamp section 11.
The wiring from 2 and the wiring from the door switch 13 are provided. Power is constantly supplied from the wiring from the battery 12, and the ground level is output to the wiring from the door switch 13 when the door is opened. Therefore, by installing the air purifier body case 1 in the vehicle interior ceiling room lamp section 11, the lamps 2a, 2b, the fan 3, the control section 14 and the like use the above existing wiring as the power source, and Engine start detection and human intrusion detection are performed based on the voltage fluctuation of the battery 12. Furthermore, the door switch 13
Using the wiring from, the lamps 2a, 2 interlocking with the door
The turning on and off of b is controlled.

In the air cleaning apparatus having the above structure, the operation part 9b is used to manually operate and stop the fan 3. When the fan 3 is in operation, the air sucked into the main body case 1 from the intake port 1a flows into the filter 4, and small dust and dust contained in the inflowing air are removed by the filter 4 to clean the air. Is sent out of the body case 1 through the exhaust port 1b, and the air cleaning operation for the vehicle interior is performed.

On the other hand, in addition to the above air cleaning operation, the control unit 14 includes a human intrusion detection unit 5, a carbon monoxide intrusion detection unit 6,
By receiving a signal from the door switch determination unit 19 and processing this signal, the buzzer drive unit 8c alerts the intrusion of a person into the vehicle and the ingress of carbon monoxide into the vehicle by the buzzer, and the lamp The drive unit 8a notifies the alarm state by blinking a lamp, and at the same time, the display unit 10b displays the carbon monoxide concentration. The display unit 10a displays the operation of the fan.

Next, referring to FIG. 7, the operation of the above embodiment, particularly the operation of the control unit 14, will be described with reference to a flow chart. First, when the lamp operating unit 9a or the door switch 13 is operated in step S01, step S02 is performed.
The lamps 2a and 2b are turned off with, and the lamp 2 is turned on in step S03.
Lighting control of a and 2b is performed.

Next, in step S04, the detection unit 5 determines whether or not the vehicle is currently parked. Here, the determination as to whether or not the vehicle is parked is, for example, to determine whether the engine is being started or stopped, and after the engine is started, the control of the fan 3 and the detection unit 6 are performed. Carbon monoxide is detected, and when the engine is stopped, the detection unit 5 detects intrusion of a person.

When it is determined in step S04 that the vehicle is currently parked, the fan 3 is stopped in step S05, the buzzer 7 that warns the invasion of carbon monoxide into the vehicle compartment is stopped, and the carbon monoxide concentration display portion 10b is turned off. Next, when an intrusion of a person is detected by the detection unit 5 in step S06, it is determined in steps S07 and S08 whether or not the parking state continues for 30 seconds, for example. Here, whether the driver has legally boarded the vehicle or the intruder has illegally boarded the vehicle is determined by whether or not the engine has been started within 30 seconds after the intrusion. If the engine is started within 30 seconds after detecting the intrusion of a person, it is determined that the driver is an authorized driver, and if the engine is not started within 30 seconds, the person is an unauthorized intruder.

Next, in step S08, if the vehicle is still parked for 30 seconds, it is determined to be abnormal, and in step S09, the buzzer 7 emits a small sound to give an alarm, and step S10 is performed.
Then, in S11, it is determined whether or not the parking state continues for 10 seconds. If you are a legitimate driver, you will start the engine with this low-pitched buzzer. Next, in step S11, 10
If the vehicle is still parked (the engine is not started) even after a lapse of a second, the buzzer 7 sounds at a loud noise in step S12, and at the same time, the lamps 2a and 2b are flashed to give an alarm. This warning is continued for 1 minute in steps S13 and S14 to issue a vehicle theft warning. Next, when 1 minute has elapsed in step S14, the buzzer 7 is stopped in step S15, and the lamp 2
The alarm is stopped by turning off a and 2b. Then, when the intrusion of a person is detected again in step S06, the above operation is repeated again.

If a legitimate driver starts the engine, it is determined that the vehicle is not currently parked in any of steps S07, S10 and S13, and the buzzer 7 is activated in step S15.
To stop the alarm by turning off the lamps 2a and 2b. Therefore, when a legitimate driver gets in the car and remains parked for 30 seconds, the buzzer 7 first gives a low-pitched alarm.
The buzzer 7 gives a loud alarm after a second, and if the engine is started during that time, the alarm will stop, so that a legitimate driver can get into the car with peace of mind.

On the other hand, if it is determined in step S04 that the vehicle is not currently parked (the engine is started), the fan operating portion 9b is operated in step S16, and the current state of the fan 3 is determined in step S17. And fan 3
If the fan 3 is operating, the fan 3 is stopped in step S18, and if the fan 3 is stopped, the fan 3 is operated in step S19.

Next, in step S20, the presence or absence of carbon monoxide is detected by the detector 6, and if no carbon monoxide has entered, the buzzer 7 is stopped and the carbon monoxide concentration display 10b is turned off in step S21. If it is determined in step S20 that carbon monoxide has entered, it is determined in step S22 whether the carbon monoxide concentration is 100 ppm or less,
If the carbon monoxide concentration is 100 ppm or less, step S
At 23, the buzzer 7 emits a small sound, and the carbon monoxide concentration display unit 1
0b blinks to give an alarm. The carbon monoxide concentration is 10
If the concentration is 0 ppm or more, the buzzer 7 emits a loud noise in step S24, and the carbon monoxide concentration display portion 10b lights up to give an alarm.

In the air purifying apparatus according to the present invention, by installing the main body case 1 on the ceiling of the passenger compartment, the existing wiring for the room lamp of the vehicle can be used, and the wiring can be shared. Further, by installing the main body case 1 on the interior room ceiling lamp portion 11, it is possible to improve the detection sensitivity of carbon monoxide having a low specific gravity in the air. Further, by operating the fan 3, it is possible to circulate the air in the vehicle interior, and it is possible to improve the detection sensitivity of carbon monoxide.

Further, in the air purifying apparatus according to the present invention, when the intrusion of a person is detected, the alarm is given by blinking the lamp and the buzzer, so that the theft can be more effectively alarmed. Further, by detecting the voltage fluctuation of the battery, it is possible to detect the occurrence of theft such as the intrusion of a person from the opening / closing section not provided with the switch or the removal of the on-vehicle electrical equipment.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an in-vehicle air cleaning device according to the present invention.

FIG. 2 is a circuit diagram showing electrical connection of the vehicle-mounted air cleaning device according to the present invention.

FIG. 3 is a circuit diagram showing an electrical connection of a detection unit used in the vehicle-mounted air cleaning device according to the present invention.

FIG. 4 is a voltage waveform diagram illustrating the operation of the detection unit shown in FIG.

FIG. 5 is a partial cross-sectional plan view showing an in-vehicle air cleaning device according to the present invention.

FIG. 6 is a schematic diagram showing an installed state of the vehicle-mounted air cleaning device according to the present invention.

FIG. 7 is a flowchart showing the operation of the vehicle-mounted air cleaning device according to the present invention.

FIG. 8 is a side view showing a conventional vehicle-mounted air cleaning device.

FIG. 9 is a block diagram of a conventional vehicle theft alarm device.

[Explanation of symbols]

1 body case, 1a intake port, 1b exhaust port, 2, 2
a, 2b lamp, 3 fan, 3a fan motor, 4 filter, 5 detection unit, 6 detection unit, 6a carbon monoxide sensor, 7 buzzer, 8a lamp drive unit, 8
b fan drive unit, 8c buzzer drive unit, 9 operation unit,
9a Lamp operation part, 9b Fan operation part, 10 Display part, 10a Fan operation display part, 10b Carbon monoxide concentration display part, 11 Car interior ceiling room lamp part, 12 Battery, 13 Door switch, 14 Control part, 14a
Input device, 14b Arithmetic circuit, 14c Output device, 14
d RAM, 14e ROM, 15 band pass filter circuit, 16 pulse shaping circuit, 17 constant voltage circuit, 1
8 Printed circuit board, 19 Door switch judgment part.

Claims (8)

[Claims] 1. An air purifier main body having an intake port, an exhaust port, a fan for sucking air in the vehicle interior from the intake port, and a filter for collecting dust and deodorizing the air flowing in by the fan. In the in-vehicle air purifying device provided on the ceiling of the vehicle, the air purifier body has a ceiling room lamp that turns on and off in conjunction with a door, and a person intrudes into the vehicle or carbon monoxide into the vehicle when it is parked. An in-vehicle air cleaning device, characterized in that a power supply and wiring for the interior room ceiling lamp, the air purifier, and the alarm buzzer are shared by integrally providing a buzzer for alarming intrusion. 2. An air purifier body having an intake port, an exhaust port, a fan for sucking air in the vehicle interior from the intake port, and a filter for collecting dust and deodorizing the air flowing in by the fan. In the in-vehicle air purifying device provided on the ceiling of the vehicle, the air purifier body has a cabin interior room lamp that is turned on and off in conjunction with a door, a detection unit that detects intrusion of a person during parking, and this detection. By integrally providing a buzzer that warns the intrusion of a person into the vehicle compartment by an output signal of the vehicle section and a control section that controls the room lamp and the buzzer, the vehicle interior ceiling room lamp, the air purifier, and the alarm An in-vehicle air cleaning device, which shares a power supply and wiring for the buzzer and the detection unit. 3. The in-vehicle air cleaning device according to claim 2, wherein the detection unit is configured to detect a voltage fluctuation of the power supply and output a detection signal of a human intrusion. 4. The air purifier main body is provided with a carbon monoxide detection section and a buzzer for warning the intrusion of carbon monoxide into the vehicle compartment by the output of the detection section. 3. The in-vehicle air cleaning device described in 3. 5. The in-vehicle air cleaning device according to claim 4, wherein a buzzer for warning a person invading a vehicle compartment and a buzzer for warning a carbon monoxide intruder are shared. 6. A vehicle interior room lamp is made to blink when an alarm is issued by a buzzer.
7. The vehicle-mounted air cleaning device according to claim 5. 7. The vehicle-mounted vehicle according to claim 2, wherein an alarm buzzer is sounded after a predetermined time from the time when the human intrusion detection unit detects the human intrusion. Air cleaning device. 8. The alarm buzzer is made to emit a small sound after a certain period of time from the time when the human intrusion detection unit detects the human intrusion,
The in-vehicle air cleaning device according to any one of claims 2 to 6, wherein a loud noise is emitted after a certain period of time.