JPH05228396A - On-vehicle air cleaner - Google Patents

Abstract

(57) [Summary] [Purpose] To cope with the situation where the operating noise of the air purifier is loud depending on the type of vehicle installed, at night or when the room is quiet. [Structure] A first algorithm for automatic operation, in which the rotation speed of an electric blower is made relatively large to clean the air in a short time operation, and a second algorithm in which automatic rotation of the electric blower is made relatively small, for a long time There is a switch to switch to the algorithm.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention detects dust and gas in the air by a sensor such as a gas sensor and automatically operates the
The present invention relates to an on-vehicle air purifier that adjusts operating time.

[0002]

2. Description of the Related Art Conventionally, there has been a vehicle air purifier of this type, but dirt on the inside of a vehicle is detected depending on the amount of gas, and suction power is installed in multiple stages to cope with dirt inside the vehicle. However, the concern about driving noise was only implemented by reducing the steady noise of the entire product. In addition, the change in the operating state due to the change in the sensitivity setting of the sensor increases or decreases the cleaning function itself, and the function is lowered in order to reduce the noise.

[0003]

In such a conventional air purifier, even when a relatively high noise is generated, it is usually desired to operate in a state in which the driving ability is high, and a relatively long operating time is required. When driving in a low noise state is preferable,
Depending on the user's preference and the condition of the car to be mounted,
There was a problem that it was necessary to deal with each situation. There is a limit to the noise reduction of the entire machine body, and it was a major issue for the air purifier to cope with the case where it is required to exhibit the cleaning function particularly in a short time and the case where operation with low noise is required. ..

The present invention solves the above-mentioned problems by changing the operation mode when the automatic operation function exhibits a strong cleaning ability in a short time and when the cleaning operation is performed equally with low noise over time. It is designed to be compatible with each other.

[0005]

In order to achieve the above object, an on-vehicle air purifier of the present invention is provided with a fan motor for inhaling dust and smoke, and a sensor for detecting gas components, exhaust gas, etc. of cigarettes. , In an in-vehicle air purifier that has a control circuit for automatic operation that automatically controls the rotation speed and operating time of the fan motor in multiple stages according to the output of this sensor, the control circuit corresponds to a predetermined sensor output Then, compared to the first operation mode in which the cleaning function is exerted in a relatively short operation time at a relatively high fan motor rotation speed, and a long operation time in a low rotation speed as compared to the first operation mode, Prepare an algorithm that executes the second operation mode that exhibits a cleaning function that is substantially equivalent to the cleaning function of the first operation mode, and the manufacturer, installer, or user selects these operation modes,
It can be switched and used.

[0006]

In the above-mentioned structure, the control circuit responds to the predetermined sensor output by the first operation mode in which the cleaning function is exerted in the relatively short operation time at the relatively high rotation speed of the fan motor, and the first operation mode. Compared to the operating mode, it takes a long operating time at a lower rotational speed and prepares an algorithm to execute the second operating mode that performs a cleaning function that is substantially the same as the cleaning function of the first operating mode, so that it can be switched. By doing so, the user, the installer or the manufacturer can select which of the cleaning time and the operation noise has priority from the operation modes having the same cleaning function. It can be installed in the most suitable operating condition according to the situation such as noise and how it is used.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a vehicle air cleaner main body, and a gas sensor 2 and a switch 3 are arranged. The gas sensor 2 has an automatic operation function of detecting the amount of gas and setting the operation output of the motor fan 4 (not shown) incorporated in the main body 1 from the output thereof, and the switch 3 has the operation algorithms (A) and (B). ).

In FIG. 2, FIG. 3, and FIG. 4, the normal operation state can be set to four states, HI, MID, LO, and stop OFF, in order from the operation state with the highest ability and the operation noise with the highest one. In addition to this, it is possible to set an automatic operation that operates according to the output of the gas sensor 2. When the automatic operation is set (A), the rotation speed N and the operation time T of the motor fan 4 are set according to the output of the gas sensor 2. Further, in (B), the rotation speed N'of the motor fan 4 is N> N 'and the operating time T'is T>T' for the same gas sensor output as in (A). Here, N, N ', T, and T'are set so that the processing capacities of the air purifier during this period are almost equal in (A) and (B).
Is used to select and switch between (A) and (B).

The operation will now be described. In automatic operation, even if the operating noise of the air purifier is relatively high, the rotation speed of the motor fan 4 is increased to process in a short time (A) and the operation. When the mode of (B) in which the noise is kept low and processing is performed for a long time is switched by the switch 3 and the user selects the cleaning function that is quicker than the noise, or when the vehicle is used in a relatively noisy vehicle. Is the operation mode of (A),
In particular, when it is necessary to operate in low noise, the manufacturer, installer or user can select to operate in the mode (B), which can provide an automatic driving function more suitable for the actual usage. Is.

[0010]

As is apparent from the above description of the embodiments, according to the on-vehicle air purifier of the present invention, when the vehicle to be used selects the cleaning function which is quicker than the noise, or in the vehicle where the noise is relatively high. When used, it is an operation mode in which the rotation speed of the motor fan 4 is increased and processing is performed in a short time even if the operation noise of the air purifier is relatively high. The manufacturer, installer, or user selects to operate in a mode that keeps the temperature low and processes for a long time, and by switching with a switch,
It is possible to provide an automatic driving function more suitable for the actual usage.

Further, by providing a switch for switching the mode separately from the normal operation switches, it is possible to make it more convenient for the user by presetting the mode considered to be optimum depending on the vehicle type installed by the installer. That can provide an air purifier in a high condition,
The same air purifier can be adapted to different vehicle types.

[Brief description of drawings]

FIG. 1 is an external view showing an embodiment of an in-vehicle air cleaner of the present invention.

FIG. 2 is a simplified flow chart showing the algorithm.

FIG. 3 is a timing chart showing the same operating state.

FIG. 4 is another timing chart showing the same operating state.

[Explanation of symbols]

 1 In-vehicle air purifier body 2 Gas sensor 3 Switch 4 Motor fan

Claims (2)

[Claims] 1. A fan motor for inhaling dust and smoke, and a sensor for detecting gas components, exhaust gas, etc. of cigarettes are provided.
In an in-vehicle air purifier having a control circuit for automatic operation that automatically controls the rotation speed and operating time of the fan motor in multiple stages according to the output of this sensor, the control circuit corresponds to a predetermined sensor output. In comparison with the first operation mode, where the cleaning function is achieved at a relatively high fan motor rotation speed and a relatively short operation time, and a low rotation speed and a long operation time are used for the first operation mode. Prepare an algorithm that executes the second operation mode that exhibits a cleaning function that is almost the same as the cleaning function of the operation mode, and allow the manufacturer, installer, or user to select these operation modes and switch between them. In-vehicle air purifier. 2. The on-vehicle air purifier according to claim 1, wherein a switch for switching the operation mode of the air purifier is provided and the switch is provided at a position separated from normal operation switches.