JP3291742B2 - Automotive air purifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle air purifying apparatus provided with an air purifying means for purifying dirt such as cigarette smoke in an air conditioner disposed in an automobile cabin.

[0002]

2. Description of the Related Art Heretofore, this type of on-vehicle air cleaning device has generally been configured as shown in Japanese Utility Model Publication No. 3-4361.

Hereinafter, the configuration will be described with reference to FIG. As shown in the drawing, a circulating fan 35 disposed upstream of an air flow path 34 that communicates between the interior 31 or exterior 32 of the automobile and the exterior 33 of the automobile, and a heat exchanger 36 disposed downstream. A dust collector 38 is provided between the heater and the heater core 37. This configuration purifies the interior of the vehicle and adjusts the temperature and humidity.

[0004]

In such an in-vehicle air cleaning device, when the dust collecting portion 38 is formed by an electrode dust collecting method, the dust collecting efficiency is high when the device is operated at a low wind speed. However, when a rapid operation is performed for air conditioning, there is a problem that dust is re-emitted from the dust collecting portion 38 because the high wind speed operation is performed. Also, the dust collection unit 3
Even if the activated carbon filter is provided downstream of 8 and has a deodorizing function, it must be operated at a low wind speed to adsorb the odor component on the activated carbon filter in order to adsorb the odor component. Therefore, this also has a problem that the adsorbed odor component is re-emitted when high wind speed operation is performed for air conditioning.

[0005] When the dust collecting section 38 is formed by a filter dust collecting method, the problem of re-emission of dust is alleviated, but the filter pressure loss increases and it becomes difficult to operate at a high wind speed, which is not practical.

Further, in order to avoid a filter pressure loss generated in the dust collecting portion, Japanese Patent Laid-Open Publication No. 58-154410 discloses a configuration in which the flow path is switched to a bypass air flow path when dust is not collected.

[0007] Hereinafter, with reference to FIG. 3 for the configuration. As shown in the figure, an air flow path A to the air purifier 42 and a bypass air flow path B to the air flow path A are formed in the air introduction section 41, and a junction 43 between the air flow paths A and B is formed at both ends. A switching door 44 for the air flow paths A and B is provided.
When it is not necessary to operate the air purifier 42, for example, during non-smoking, the introduced air is guided to the bypass air flow path B by the switching door 44.

However, in this configuration, since the control of the blower unit 45 is performed manually by the fan lever 46, it may experience high wind speed air is flowed into e A channel A, dust from the air purifier 42 There is a problem that it is not possible to eliminate the re-emission of odorous or odorous components.

The present invention has been made to solve the above-mentioned problem, and an air purifying apparatus for a vehicle which does not re-discharge dust and odor components collected by an air purifying means even when the air purifying means is operated at a high speed for air conditioning. It is intended to provide.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an air conditioner for sending conditioned air into a vehicle interior through a ventilation path by a ventilation means, and an air conditioner installed inside or connected to the ventilation path. Air purifying means, switching means for switching the flow path of the conditioned air to one of the ventilation path and the air purifying means, and interlocking with the switching of the switching means to the air purifying means side. And control means for controlling the output of the air blowing means to a low output.

[0011] Further, in the switching of the switching means to the ventilation path side.
A control means for controlling the output of the blowing means to high output in conjunction therewith
It has a step .

[0012] In addition, when the output of the blower means is a low output
The air purifying means side, the output of the air blowing means is provided with switching means for switching the air path side on <br/> at high output is also <br/> of.

[0013]

DETAILED DESCRIPTION OF THE INVENTION The present invention as described above, since to control the blowing means to a low output in conjunction with the switching of the air purification unit side switching it means, the dust and odor components reliably with air purifying means In addition to being able to collect, dust and odor components from the air purifying means can be prevented from being released again.
Further, in conjunction with switching of the switching means to the ventilation path side,
By controlling the output of the blower to high output,
Operation as an air conditioner with less pressure loss is possible
Things. Also, when the output of the blower is low
When the output of the blowing means is high output to the air purifying means side
Must have switching means to switch to the ventilation path side
Thus, the same effect as above can be obtained.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.

The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted. As shown in FIG.
Downstream of the heater core 37 in 4, an air purification means 3 formed by an electrode dust collection type dust collection filter 1 and a deodorization filter 2 is disposed. On the intake side 4 of the air purification means 3, a switching means 5 comprising a switching door for switching the air flow A between the air purification means side a and the air flow path side b is provided. Further, the exhaust side 6 of the air purifying means 3 communicates with the air flow path 34 on the downstream side of the switching means 5. The control circuit 7 controls the switching means 5 and the blowing means 35 comprising a circulation fan in an interlocking manner, and controls the output of the blowing means 35 to a low output in conjunction with the switching of the switching means 5 to the air purification means side a. When the output of the blower means 35 is low, the switching means 5 is switched to the air purifying means side a, and when the output is high, the switching means 5 is switched to the air flow path side b.

Here, the output of the blower means 35 indicates the wind speed, volume or pressure of the blower, and is obtained by controlling the number of revolutions of the circulation fan.

In addition, 8 is an intake door, 9 is a vent door, 10 is a floor door, and 11 is a differential door, which switches the ventilation of the air conditioner between indoor and outdoor.

In the above configuration, first, when used as a normal air conditioner, the switching means 5 is connected to the air flow path b
When the blower means 35 is operated, the control circuit 7
The air blowing means 35 is controlled to have a high output, and the air entering from the vehicle interior 31 or the vehicle exterior 32 by switching the intake door 8 is converted into cold air by the heat exchanger 36 or hot air by the heater core 37 to change the temperature and humidity into the indoor environment. Harmony according to the vent door 9, floor door 10,
By adjusting the opening and closing of the differential door 11, air is appropriately blown into the vehicle interior.

Next, when used as an air purifier, when the switching means 5 is switched to the air purifying means side a and the blowing means 35 is operated, the control circuit 7 is operated, and the blowing means 35 is linked with the switching of the switching means 5. Output of the air purifying means 3
Switch to low output suitable for purification function. As a result, the wind speed of the airflow passing through the air purification means 3 decreases,
Dust and odor components can be reliably collected, and re-emission of the collected dust and odor components can be eliminated.

Next, another embodiment of the present invention will be described. When the blower 35 is operated at an output equal to or higher than a predetermined output while the switching unit 5 is switched to the air purifying unit side a, the control circuit 7 interlocks with the output of the blower 35 to switch the air to the air. The air flow is switched to the flow path side b to prevent the high-speed air flow from passing through the air purification means 3. As a result, it is possible to eliminate the re-emission of dust and odor components from the air purification means 3.

When the blower 35 is operated at a low output in a state where the switch 5 is switched to the air flow path b, the control circuit 7 operates the switch 5 in conjunction with the output of the blower 35. Switching to the purifying means side a , and passing the low-speed air flow through the air purifying means 3, it is possible to collect dust and odor components in the conditioned air.

In the above embodiment, the air purifying means 3 is provided in the air passage 34. However, the air purifying means 3 may be connected to the air passage 34.

[0023]

As apparent from the above description of the embodiments according to the present invention, according to the present invention, by controlling the output of the conjunction with blowing means to switch to the air purification unit side switching it means low output In addition, dust and odor components can be reliably collected by the air purifying means, and re-emission of dust and odor components can be eliminated. Switching the switching means to the ventilation path side
Control the output of the blowing means to a high output
As a result, it has low pressure loss as a normal air conditioner
Driving becomes possible.

When the output of the blowing means is low,
When the output of the blowing means is high output to the air purifying means side
Must have switching means to switch to the ventilation path side
Thus, the same effect as above can be obtained.

As described above, according to the present invention, even if the blowing means is operated at a high output for air conditioning, the dust and odor components collected by the air purifying means are not re-released. Can be provided.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a configuration of an on-vehicle air cleaning device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a configuration of a conventional on-vehicle air cleaning device.

FIG. 3 is a configuration diagram of another in-vehicle air cleaning device.

[Explanation of symbols]

 3 Air Purification Means 5 Switching Means 7 Control Means 34 Ventilation Path 35 Blowing Means

Claims (3)

(57) [Claims] An air conditioner for sending conditioned air into a vehicle interior through a ventilation path by a blowing means, an air purifying means provided inside or connected to the ventilation path, and a flow path for the conditioned air passing through the ventilation path. Switching means for switching to any one of the path and the air purification means, and control means for controlling the output of the blowing means to a low output in conjunction with the switching of the switching means to the air purification means side. Equipped vehicle air purifier. 2. The conditioned air is passed through a ventilation path by a blowing means.
Air conditioner that sends air into the passenger compartment and
Or an air purification means provided continuously, and a flow path of the conditioned air.
Switching to one of the ventilation path and the air purification means
Switching means, and switching of the switching means to the ventilation path side
Control to control the output of the blowing means to a high output in conjunction with
And an air purifying device for a vehicle. 3. The conditioned air is passed through a ventilation path by a blowing means.
Air conditioner that sends air into the passenger compartment and
Or the output of the air purifying means and the blowing means
When the output is low, the blowing means
When the output is high, the switch to the ventilation path
An in- vehicle air cleaning device comprising a replacement means .