JPH04288164A - Deodorizing fragrance apparatus for air in chamber - Google Patents

Abstract

PURPOSE:To achieve comfortableness of a car chamber and freshness of air in a room by deodorizing and purifying the air to emanate a fragrant agent effectively. CONSTITUTION:An odor sensor 5, an ozone generator 6 and a catalyst reducer 8 are arranged sequentially in the course of a suck-in path 4 of a blower 9. A box 21 free to open or close holding a fragrant agent 14 is arranged in a suck out path 13 of the blower 9. When a detection value of an order sensor 5 exceeds a reference value, the ozone generator 6 is driven by an output of an electronic controller 17 to perform a deodorizing of air in a chamber. When the detection value of the odor sensor 5 is below the reference value, a motor 18 is driven by the output of the electronic controller 17 to open the box 21 holding the fragrant agent 14 to emanate fragrance.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is a device for purifying the indoor air of a vehicle, etc., and in particular, deodorizes the indoor air according to the degree of pollution, and emits an aromatic agent in the purified state to create a refreshing feeling in the room. The present invention relates to an indoor air deodorizing/fragrance device that aims to achieve this.

0002

2. Description of the Related Art A device in which an air freshener is arranged in a blow-off duct of a vehicle air conditioner, mixes the aromatic substance into temperature-controlled air, and blows it out into the passenger compartment is disclosed, for example, in Japanese Patent Laid-Open No. 62-50220 and Japanese Patent Laid-Open No. 63 It is disclosed in the publication No.-222919.

0003

[Problems to be solved by the invention] However, indoor air is mixed with cigarette smoke, and temperature-controlled air is mixed with exhaust gas along with outside air. Even if it is mixed into the air, a sufficient fragrance effect cannot be obtained and the fragrance is wasted.

[0004] In view of the above-mentioned problems, the object of the present invention is to deodorize and purify indoor air, and then effectively release an aromatic agent.
To provide a deodorizing and aromatic device for indoor air, which improves the comfort of a vehicle interior and the refreshing feeling of indoor air.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention has a structure in which an odor sensor, an ozone generator, and a catalytic reducer are sequentially arranged in the middle of the suction passage of the blower, and A box containing an air freshener that can be opened and closed is installed in the system, and an electronic control device is provided to drive the ozone generator when the detected value of the odor sensor is above a predetermined value, and to open the box when the detected value is below a predetermined value. It is something that

[0006]

[Operation] If the indoor air is contaminated by the odor sensor, only the deodorizer is activated. That is, ozone is supplied to the suction passage to activate indoor air, and then the air is passed through a catalytic reducer to be deodorized.

[0007] When the indoor air is purified, the operation of the deodorizer is stopped, the box containing the aromatic agent is opened, and the aromatic substance is released into the indoor air in the blowout passage. This allows the aromatic effect of the aromatic agent to be efficiently exerted.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional plan view of a room air deodorizing and aromatic device according to the present invention. The deodorizing and aromatic device is installed in the instrument panel of the vehicle interior, the shelf behind the rear seat, etc. It is equipped with an inlet 3 and an outlet 15 on the front wall of a box-shaped case 2, and a blower 9 inside. accommodate. A deodorizer is disposed in a suction passage, that is, a suction duct 4 that connects the suction port 3 and the blower 9. That is, an odor sensor 5 and an ozone generator 6 are disposed on the side wall of the suction duct 4, and a catalytic reducer 8 is disposed inside the suction duct 4. A temperature sensor 12 is installed inside the air outlet passageway, that is, the air outlet duct 13 that connects the blower 9 and the air outlet 15.
are arranged, and a plurality of boxes 21 for storing the fragrance 14 are arranged adjacent to the air outlet 15. A wind direction plate 10 is disposed inside the blow-off duct 13 so that the blow-off air flows uniformly to each box 21.

The box 21 is provided with openings on the upstream and downstream sides of the blow-off duct 13, so that air can flow through the inside of the box 21. The air freshener 14 housed inside the box 21 is supported by a shaft 19 passing through the box 21, and the shaft 19 is connected to an electric motor 18.
When the container is rotated four and a half times, the hole in the container enclosing the aromatic agent 14 is switched between a position where it matches the opening of the box 21 and a position where it is closed by the wall of the box 21. An electronic control device 17 is supported by a partition wall 16 inside the case 2, and an ozone generator 6 and an electric motor 18 are controlled by an output signal based on a detection signal from the odor sensor 5.

When a switch (not shown) on the driver's seat is closed, the blower 9 is driven and at the same time, the electronic control unit 17 is activated. The indoor air sucked into the suction duct 4 from the suction port 3 by the blower 9 has a degree of contamination S 2 detected by the odor sensor 5 . The degree of pollution S of the indoor air is compared with a reference value S1 in the electronic control unit 17, and if the degree of pollution S of the indoor air is larger than the reference value S1, the ozone generator 6 is driven by the output signal of the electronic control unit 17. ozone is supplied from the opening 7 to the suction duct 4. Indoor air is activated by ozone and deodorized while passing through the catalytic reducer 8.

[0011] The deodorized room air is blown out from the air outlet 15 into the vehicle interior through the air duct 13 by the blower 9. At this time, the hole in the container for the fragrance 14 is closed by the box 21, and the fragrance 14 is not released.

When the detected value of the odor sensor 5 becomes less than the reference value S1, the operation of the ozone generator 6 is stopped by the output signal of the electronic control device 17, and at the same time, the electric motor 18 is driven to close the hole in the container of the aromatic agent 14. It communicates with the opening of the box 21. Therefore, the aromatic agent 14 is mixed with the blown air, and the air freshener 14 is mixed with the blown air.
It is blown out into the passenger compartment. Since the aromatic agent 14 is emitted only when the indoor air is purified as described above, the aromatic agent 14 is not wasted and the aromatic effect is efficiently exerted.

[0013] The box 21 containing the aromatic agent 14 is not limited to the above-mentioned embodiment, and may be any box 21 as long as it can be switched between a closed state and an open state.

In the above-described embodiment, instead of switching between deodorization and fragrance generation based on one reference value S1 for the degree of soiling S, it is also possible to switch between deodorization and deodorization/fragrance generation based on two reference values S1 and S2.

FIG. 2 is a software flowchart of a program in which the latter control is performed by an electronic control unit 17 consisting of a microcomputer. In FIG. 2, p11 to p2
3 represents each step of the program. The control program according to the present invention starts at p11, and at p12 the odor sensor 5
The degree of pollution S of the indoor air is detected. At p13, it is determined whether the degree of pollution S of the indoor air is smaller than the reference value S2. If the degree of pollution S of the indoor air is greater than the reference value S2, deodorization is performed in p14, and the process ends in p23.

[0016] On p13, the degree of pollution S of the indoor air is the standard value S.
If it is smaller than 2, ozone is generated in p15, and the catalytic reducer 8 deodorizes the indoor air. In p16, the temperature sensor 12 detects the temperature of the indoor air, and in p17, the fragrance amount Q2 of the air freshener 14 corresponding to the temperature is determined, and the electric motor 18
The degree of opening of the box 21 is controlled by. The degree of dirt S subsequently detected by the odor sensor 5 on page 18 is the standard value S1 (
is smaller than the reference value S2). If the degree of contamination S is greater than the standard value S1, p15
Returning to step 1, if the degree of contamination S is smaller than the standard value S1,
At p19, measurement of the fragrance time T is started, and at p20, the fragrance 14 is emitted with an amount of fragrance Q1 (less than Q2).

At p21, it is determined whether the fragrance emitting time T of the fragrance 14 is longer than a predetermined value T1. If the fragrance emitting time T 1 of the aromatic agent 14 is shorter than the predetermined value T1, the process returns to p20. If the fragrance time T 1 of the fragrance 14 is longer than the predetermined value T1, the fragrance emission of the fragrance 14 is stopped in p22, and the process ends in p23. The above program is repeatedly executed at predetermined time intervals.

[0018]

Effects of the Invention As described above, the present invention is a box that can be opened and closed, in which an odor sensor, an ozone generator, and a catalytic reducer are sequentially arranged in the middle of the suction passage of the blower, and an air freshener is housed in the blowout passage of the blower. It is equipped with an electronic control device that controls the ozone generator to operate when the detected value of the odor sensor is above a predetermined value, and to open the box when the detected value is below a predetermined value, so that the indoor air is odor-free. Since the fragrance is released only in a purified state, the refreshing feeling of indoor air and the comfort of the passenger compartment can be efficiently obtained. In other words, if the indoor air is dirty, air fresheners are used after purifying the indoor air with a deodorizer, so the fragrance effect of the air freshener is effective and the amount of air freshener consumed is reduced. Economical.

[Brief explanation of the drawing]

FIG. 1 is a plan cross-sectional view of an indoor air deodorizing and aromatic device according to the present invention.

FIG. 2 is a software flow diagram of a program that controls a deodorizing and aromatic device.

[Explanation of symbols]

Claims (1)

[Claims] Claim 1: An odor sensor, an ozone generator, and a catalytic reducer are sequentially disposed in the suction passage of the blower, and an openable and closable box containing an aromatic agent is disposed in the blowout passage of the blower. 1. A deodorizing and aromatic device for indoor air, comprising an electronic control device that controls an ozone generator to be driven when a detected value is above a predetermined value, and to open a box when the detected value is below a predetermined value.