JP2564482Y2 - Deodorizer - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizer which can be installed in various automobiles and the like. Here, the deodorizer is a concept including an air purifier, and can be applied to a general living space other than for a vehicle.

[0002]

2. Description of the Related Art In recent years, automobiles equipped with a deodorizer have been developed in order to remove the bad odor generated inside the vehicle in order to seek comfort in the interior space of the vehicle. As such an in-car deodorizer, an ozone generator that generates an ozone for decomposing odor components, a device having a built-in odor adsorption catalyst such as activated carbon in a deodorization treatment channel, and an ozone generator that exclusively includes There is one provided with an ozone activation catalyst. In addition, in any of the above-described car deodorizers, a fan for sucking air containing odor from the suction port and discharging the air after the deodorization processing through the discharge port into the vehicle is disposed in the deodorization processing flow path. ing.

[0003]

However, such an in-vehicle deodorizer still has the following problems to be solved.
That is, such vehicle for the deodorizer is usually being operated quite independently of the vehicle generated sound consisting of the engine sound and the car stereo sound, etc., it is when during driving a car, to increase the deodorizing ability, deodorant car It is desirable to rotate the fan of the vessel at high speed.

However, in such an operation mode of the in-vehicle deodorizer, when the engine sound is high, such as when driving at high speed, or when the car stereo is used, the in-vehicle generated sound value is determined by the fan of the in-vehicle deodorizer. Although it is not bothersome because it is higher than the noise value, the fan of the deodorizer for the vehicle, such as when driving at low speed or not listening to the car stereo,
When a noise value generated from a flow path such as an air outlet is high, the user is concerned about the noise and cannot enjoy a comfortable drive. Also, a deodorizer is required when the car is not in use, such as when parking.
It is useless to operate more than necessary. An object of the present invention is to provide an in-vehicle deodorizer that can solve the above-described problems.

[0005]

SUMMARY OF THE INVENTION The present invention relates to an in-vehicle deodorizer characterized in that the capacity of a fan incorporated in a deodorizer or the like can be controlled based on a value detected by a sound sensor. . Here, the fan capacity can be controlled by controlling the number of rotations of the fan, controlling the number of drives of a plurality of fans, controlling the pitch of a fan having a fan blade with a variable pitch, and the like. Further, the in-vehicle deodorizer may be a deodorizer using an odor adsorption catalyst, or a deodorizer using an ozone generator and an ozone activation catalyst.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to an embodiment shown in the accompanying drawings. FIG. 1 shows the internal structure of a general four-seater passenger car A. The passenger car A has a pair of speakers S mounted on a rear panel behind a rear seat 9, and a pair of speakers S Between,
The deodorizer D for the vehicle is mounted. Fig. 2 shows the deodorizer D for the car
1 schematically shows the internal structure of the above. As shown in the figure, an in-vehicle deodorizer D includes a casing 11 having a deodorizing treatment flow path 10 formed therein, an odor adsorbing catalyst 12 and an odor absorbing catalyst 12 disposed upstream of the deodorizing treatment flow path 10. It comprises a fan 13 arranged downstream of the adsorption catalyst 12, and a motor 14 for driving the fan 13.

Further, the deodorizing treatment channel 10 has an odor suction port 10a at the upper end and a deodorizing air discharge port 10b at the lower end. With this configuration, when the motor 14 is driven, the air containing the malodor in the interior space B of the passenger car A flows into the deodorization treatment channel 10 through the odor suction port 10a, and the odor component in the air is converted into the odor adsorption catalyst 1
The air that has been adsorbed / collected and deodorized by 2 is sent into the passenger car A from the deodorized air discharge port 10b. By repeating such a deodorizing operation for a desired time, the interior space B of the passenger car A can be made a comfortable space without odor.

[0008] In the basic configuration of the car interior deodorizer D,
The present invention further impairs the deodorizing effect by controlling the capacity (the number of revolutions in the present embodiment) of the fan 13 built in the in-vehicle deodorizer D based on the in-vehicle generated sound value detected in the in-vehicle space B. In addition, the configuration is characterized in that discomfort due to noise generated from the fan 13 and the motor 14 is reduced as much as possible. Hereinafter, a configuration that characterizes the present invention will be described with reference to FIGS. 1, 2, and 3. FIG.

That is, as shown in FIG. 2, a deodorizer provided with various switches for controlling the number of revolutions, time and the like of the motor 14 of the fan 13 is provided on the input side interface of the control device C comprising a microcomputer or the like. An operation panel P and a sound sensor 15 for detecting a noise level generated in the vehicle interior space B are installed by wire or wirelessly. A motor for driving the fan 13 is provided on the output side interface of the control device C. Fourteen motor drive circuits 16 are connected.

In the above configuration, it is desirable that the deodorizer operation panel P be installed on the front dashboard 17 as shown in FIG. 1 in consideration of the operability of the driver. Sound sensor 1
For 5, a sound pressure sensor such as a microphone can be used, and it is conceivable that the microphone 5 is installed at an appropriate position in the vehicle interior space B, for example, on the front dashboard 17 or on the ceiling as shown in FIG.

The control device C includes a control circuit a, a storage circuit b, a generated sound level detection circuit c, and the like. The storage circuit b stores the generated sound value from the sound sensor 15 in the vehicle. A program for controlling a drive signal of the motor 14 to the motor drive circuit 16 is stored.

Next, an operation mode of the in-vehicle deodorizer D having the above configuration will be described. In FIG. 2, the fan 13
The rotation speed of the motor 14 is controlled by the control circuit a based on a command specified by the driver on the deodorizer operation panel P, so that the motor 14 can rotate at an arbitrary rotation speed, and the deodorization of the in-vehicle deodorizer D can be performed. You can change your abilities.

Further, the control circuit a sets in advance the in-vehicle generated sound value and the deodorizing capability (fan rotation speed) of the in-vehicle deodorizer D based on the in-vehicle generated sound value in the in-vehicle space B detected by the sound sensor 15. Referring to the relationship, the fan 1 is set within an allowable range for the sound level, that is, the sound value generated in the vehicle.
3 controls the rotation speed of the motor 14.

That is, first, the driver operates the deodorizer operation panel P
Then, the control circuit a which sets the deodorizing capacity (fan speed) of the in-vehicle deodorizer D and receives a command signal of the set amount (hereinafter referred to as “set amount”) is a sound sensor installed in the in-vehicle space B. The generated sound level in the vehicle interior space B detected by step 15 is analyzed by the generated sound level detection circuit c.

Next, from the graph of the relationship between the in-vehicle generated sound value and the deodorizing ability (fan speed) input to the storage circuit b, the maximum deodorizing capacity (fan speed) allowed by the in-vehicle generated sound value is obtained. (Hereinafter, referred to as “permissible maximum amount”), and when the set amount is smaller than the allowable maximum amount, the rotation speed of the motor 14 of the fan 13 is controlled so that the deodorizing ability can be obtained according to the set amount.

However, when the set amount is larger than the allowable maximum amount, the motor 1 is not controlled according to the set amount but according to the allowable maximum amount.
4 to be rotated with the maximum permissible deodorizing capacity. FIG. 3 shows a specific control mode. As shown
By controlling the rotation speed of the motor 14 of the fan 13, the noise value generated from the fan 13 can always be kept lower than the noise value generated in the vehicle. In the embodiment shown in FIG. 3, the noise value generated from the fan 13 is always controlled to a value lower than the in-vehicle sound value, but it is not necessary to strictly compare the values, and the values are relatively tracked. It is good.

In this case, when the in-vehicle generated sound value rises, the rotation speed of the fan 13 is increased by giving a certain time lag, and when the in-vehicle generated sound value decreases, the fan 13 is provided without a time lag. It is desirable to perform control to reduce the number of rotations of the thirteen. In the present embodiment, the user specifies the set amount using the operation panel P for remotely operating the deodorizer D. However, the operation panel P may be integrated with the deodorizer D and the sound sensor 15, and the set amount may be set. It is feasible even if it is not specified. That is, the level of the sound value generated in the vehicle from the sound sensor 15 is replaced with, for example, three ranks of A, B, and C. In the rank of A, the fan rotation speed is automatically increased, and in the rank of B, the fan speed is automatically decreased. In the C rank, stepwise control such as automatically setting to stop is also possible.

In this case, if it is for a car, the deodorizing operation can be automatically stopped at the rank of C (when a person is not in the car, not when driving), power saving is achieved, and rank B or higher ( The deodorizer automatically starts operating (e.g., during engine operation), and the auto start and auto stop functions can be obtained.

As described above, in this embodiment, for example, when the sound generated in the vehicle interior space B is high due to the engine sound or the car stereo sound at the time of high-speed running, the fan 13 of the vehicle interior deodorizer D is turned to the maximum. Even when the engine rotates at the rotational speed, the engine sound is higher than the noise value generated by the fan 13, so that the driver can enjoy a comfortable drive without being bothered by the noise. Further, when the engine sound is low, such as when driving at low speed or when the vehicle is stopped, or when the car stereo is not used, by reducing the rotation speed of the fan 13 of the in-vehicle deodorizer D, the driver can similarly It is possible to enjoy a comfortable drive without being bothered by noise.

In the above embodiment, the control of the noise generated by the fan 13 is performed by controlling the rotation speed of the motor 14. Can be controlled by other control modes such as changing the pitch of the fan blades to a variable pitch.

In the above embodiment, the vehicle interior deodorizer has been described with reference to the fan 13 and the vehicle interior deodorizer D having the odor adsorption catalyst 12. Also, in an in-vehicle deodorizer including an ozone generator and an ozone activation catalyst, the fan performance can be controlled based on the in-vehicle generated sound value detected by the sound sensor. The driver can enjoy a comfortable drive without being bothered by noise.

[0022]

According to the present invention, the capacity of the fan of the deodorizer can be automatically adjusted based on the detected noise value of the space. Therefore, when the generated sound value of the space is high, even if the fan of the in-vehicle deodorizer is rotated at a high speed, the noise level is high, so that the driver is not particularly worried about the noise of the deodorizer, and is effective. You can enjoy a comfortable drive by deodorizing. In addition, when the generated sound value of the space is low, the ability of the fan of the deodorizer is reduced, so that the driver can enjoy a comfortable drive without being bothered by noise.

[Brief description of the drawings]

FIG. 1 is a cross-sectional plan view of a passenger equipped with an in-vehicle deodorizer according to the present invention.

FIG. 2 is a block diagram showing a conceptual configuration and a control circuit of the in-vehicle deodorizer.

FIG. 3 is a graph showing a relationship between a detected noise level in a vehicle interior space and a rotation speed of a fan of the vehicle interior deodorizer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS A Passenger car B Interior space C Control device D Interior deodorizer P Deodorizer operation panel 10 Deodorization treatment channel 11 Casing 12 Odor adsorption catalyst 13 Fan 14 Motor 15 Sound sensor 16 Motor drive circuit 17 Dashboard

Claims (4)

(57) [Scope of request for utility model registration] 1. A deodorizer characterized in that the capability of a fan (13) incorporated in a deodorizer can be controlled based on a value detected by a sound sensor (15). Wherein based on the value detected by the sound sensor (15), and controls the built-in fan (13) the ability to deodorizer, the detection limit of the fan to the ability of (13), a sound sensor (15) foot
A deodorizer characterized by being approximately proportional . 3. The deodorizer according to claim 1, wherein the deodorizer comprises a fan (13) and an odor adsorption catalyst (12). 4. A deodorizing device includes a fan (13), deodorizer according to claim 1 or 2 characterized in that the deodorizer comprising the ozone generator, and an ozone active catalyst.