JPH0550850A - On-vehicle air cleaner - Google Patents

Abstract

PURPOSE:To eliminate rerelease of dust and ill-smelling component, collected in an air purifying means at air conditioning time, in the case of an on-vehicle air cleaner. CONSTITUTION:An air purifying means 3 is arranged in an air flow path 34 of an air conditioner arranged in a car room, and a switching means 5 for switching an air flow A to an air purifying means side (a) and an air flow path side (b) is provided in a suction side 4 of the air purifying means 3 and constituted so as to control switching of the switching means 5 associated with an output of a blower means 35 by a control means 7. By switching to the air purifying means side (a) of the switching means 5, the output of the blower means 35 is controlled to a low output by the control means 7. Thus by decreasing a speed of flowing air passing through the air purifying means 3, rerelease of dust and ill-smelling components, collected in the air purifying means 3, can be eliminated.

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 purifying device having an air conditioner arranged in an automobile compartment provided with air purifying means for purifying dirt such as cigarette smoke.

[0002]

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

The structure will be described below with reference to FIG. As shown in the figure, a circulation fan 35 disposed on the upstream side and a heat exchanger 36 disposed on the downstream side of an air flow path 34 that communicates the vehicle interior 31 or the vehicle exterior 32 with the vehicle exterior 33 of the automobile. A dust collecting portion 38 is disposed between the heater core 37 and the heater core 37. With this configuration, the interior of the automobile is cleaned and the temperature and humidity are adjusted.

[0004]

In such an on-vehicle air purifying apparatus, in which the dust collecting portion 38 is formed by the electrode dust collecting method, the dust collecting efficiency is high when operating at a low wind speed. However, when performing a rapid operation for air conditioning, there is a problem that dust is re-emitted from the dust collecting portion 38 because a high wind speed operation is performed. In addition, the dust collector 3
Even if there is a deodorizing function by arranging an activated carbon filter on the downstream side of 8, it is necessary to operate at a low wind speed to adsorb the odorous component to the activated carbon filter in order to adsorb the odorous component. Therefore, this product also has a problem that the adsorbed odorous component is re-released when the high wind speed operation is performed for air conditioning.

Although the problem of re-emission of dust is alleviated when the dust collecting portion 38 is of a filter dust collecting system, the filter pressure loss becomes high and it becomes difficult to operate at high wind speed, which is not practical.

Further, in order to avoid a filter pressure loss that occurs in the dust collecting portion, a configuration in which the flow passage is switched to a bypass air flow passage when dust is not collected is disclosed in Japanese Utility Model Laid-Open No. 58-152410.

The configuration will be described below with reference to FIG. 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 portion 41, and both air flow paths A and B are connected to each other at a junction 43. A switching door 44 for air passages A and B is provided.
Then, when it is not necessary to operate the air purifier 42 when not smoking, the introduced air is guided to the bypass air flow path B side by the switching door 44.

However, in this structure, since the control of the blower means 45 is manually performed by the fan lever 46, high-speed air may flow in the bypass air passage A, and dust from the air purifier 42 may be caused. There is a problem that it is not possible to eliminate the re-emission of odorous components.

The present invention solves the above problems and provides an on-vehicle air purifying device which does not re-emit dust and odorous components trapped in the air purifying means even at high speed operation for air conditioning. It is intended to be provided.

[0010]

In order to achieve the above object, the present invention provides an air conditioner for sending conditioned air into a vehicle compartment through a ventilation passage by means of an air blower, and an air conditioner installed in or connected to the ventilation passage. Air purifying means, switching means for switching the flow path of the conditioned air to either the ventilation passage or the air purifying means, and the output of the blower means in high output or low output in conjunction with the switching of the switching means. And a control means for controlling.

Further, the blowing means is controlled to a low output in conjunction with the switching of the switching means to the side of the air purifying means.

Further, when the output of the blower means is low, the switching means is switched to the air purifying means, and when the output of the blower means is high, the switching means is switched to the ventilation passage, and the switching control is performed in conjunction with the output of the blower means. It was done like this.

[0013]

As described above, according to the present invention, the control means controls the output of the blowing means in conjunction with the switching of the switching means, and in particular,
Since the blower means is controlled to a low output in conjunction with the switching of the switching means to the air purifying means side, dust and odorous components can be reliably collected by the air purifying means and the air purifying means It is possible to eliminate the re-emission of dust and odorous components.

[0014]

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

The same parts as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted. As shown in the figure, the air flow path 3
On the downstream side of the heater core 37 in 4 is provided an air purifying means 3 formed of an electrode dust collecting type dust collecting filter 1 and a deodorizing filter 2. On the intake side 4 of the air purifying means 3, there is arranged a switching means 5 comprising a switching door for switching the air flow A between the air purifying means side a and the air flow path side b. 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 interlocks with the switching means 5 and the air blowing means 35 composed of a circulation fan, and controls the output of the air blowing means 35 to a low output in conjunction with the switching of the switching means 5 to the air purifying means side a. Further, when the output of the blower unit 35 is low, the switching unit 5 is controlled to be switched in conjunction with the air purifying unit side a and when the output is high, in conjunction with the air flow path side b.

Here, the output of the blower means 35 refers to the wind speed, the air volume, or the wind pressure of the blown air, and is obtained by controlling the rotation speed of the circulation fan.

Reference numeral 8 is an intake door, 9 is a vent door, 10 is a floor door, and 11 is a differential door, and they switch the ventilation of the air conditioner between indoor and outdoor.

In the above structure, first, when the air conditioner is used as a normal air conditioner, the switching means 5 is set to the air flow path side b.
When the ventilation means 35 is switched to the
The air that has entered from the vehicle interior 31 or the vehicle exterior 32 by switching between is switched to cold air by the heat exchanger 36 or warm air by the heater core 37 so that the temperature and humidity are adjusted according to the indoor environment.
0, air is appropriately blown into the passenger compartment by adjusting the opening / closing of the differential door 11.

Next, when it is used as an air purifier, when the switching means 5 is switched to the air cleaning means side a and the air blowing means 35 is operated, the control circuit 7 operates and the air blowing means 35 is interlocked with the switching of the switching means 5. Output of the air purifying means 3
Switch to a low output suitable for the purification function of. As a result, the wind velocity of the air flow passing through the air purification means 3 becomes low,
It is possible to reliably collect dust and odorous components, and it is possible to eliminate re-release of the collected dust and odorous components.

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

When the blowing means 35 is operated at a low output while the switching means 5 is switched to the air flow path side b, the control circuit 7 interlocks with the output of the blowing means 35 to switch the switching means 5 to the air. Since the low-speed air flow is passed to the air purifying means 3 by switching to the purifying means side b, dust and odor components in the conditioned air can be collected.

In the above embodiment, the air purifying means 3 is installed in the air passage 34, but it may be connected to the air passage 34.

[0023]

As is apparent from the above description of the embodiments, according to the present invention, the control means controls the output of the blowing means in conjunction with the switching of the switching means, and the air purifying means of the switching means. By controlling the output of the air blowing means to a low output in conjunction with the switching to the side, the dust and odorous components of the air purification means can be reliably collected and the re-emission of dust and odorous components is eliminated. You can

The same effect can be obtained by controlling the switching of the switching means in conjunction with the output of the blowing means.

As described above, according to the present invention, even if the blowing means is operated at a high output for air conditioning, the vehicle-mounted air cleaning device that does not re-emit the dust and odorous components collected by the air purifying means. Can be provided.

[Brief description of drawings]

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

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

FIG. 3 is a block diagram of another on-vehicle air cleaning device.

[Explanation of symbols]

 3 Air Purifying Means 5 Switching Means 7 Control Means 34 Ventilation Paths 35 Blower Means

Claims (3)

[Claims] 1. An air conditioner that sends conditioned air into a vehicle compartment through a ventilation path by an air blowing means, an air purifying means that is internally provided in or linked to the ventilation path, and a flow path of the conditioned air. A vehicle-mounted air cleaning device comprising switching means for switching between a passage and the air purifying means, and control means for controlling the output of the blower means to a high output or a low output in conjunction with the switching of the switching means. .. 2. The in-vehicle air cleaning device according to claim 1, wherein the blower means is controlled to have a low output in conjunction with the switching of the switching means to the side of the air purifying means. 3. When the output of the blower means is low output, the switching means is switched to the air purifying means, and when the output of the blower means is high output, the switching means is switched to the ventilation passage, and switching control is performed in conjunction with the output of the blower means. The vehicle-mounted air cleaning device according to claim 1.