JPH0739248B2 - Automotive air purifier - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an on-vehicle air purifier installed on a rear tray of an automobile.

2. Description of the Related Art In recent years, the number of vehicle air purifiers for purifying smoke and odors of cigarettes in automobiles has increased, and it has become common to mount them on a rear tray.

Conventionally, some vehicle-mounted air purifiers installed in this type of rear tray are built in a trunk as shown in FIGS.

Reference numeral 1 is a motor for driving a fan 2 attached to the vehicle air purifier body, which is attached horizontally.

The mounting position is exposed on the upper surface of the main body and is directly fixed to the main body with screws or the like.

Reference numeral 4 is a filter bent like a folding screen. The main body is divided into a filter case 5 containing a filter 4 and a vortex chamber 3 covering the fan 2, and the air sucked from the intake port 6 has its dust filtered by the filter 4 and passes through the vortex chamber 3 to the exhaust port 7
More discharged.

The main body is mounted in a vehicle trunk by a mounting bracket 9, and intake air and exhaust gas pass through a grill 10 installed on a rear tray in the vehicle to purify air in the vehicle.

11 is a packing that airtightly connects the intake port 6, the exhaust port 7 and the grill 10 to each other.

Problems to be Solved by the Invention In such a configuration, the immediately upper surface of the motor becomes a wall surface of the rear tray (not shown), and the heat radiation space of the motor cannot be sufficiently secured. However, there is a problem that the material of requires high heat resistance. In addition, since the motor is exposed in the trunk room as it is, the user touches the end surface of the motor case from the trunk side, which may cause injury at the edge, or something put in the trunk may hit the motor, etc. It also had drawbacks.

The present invention solves the above-mentioned problems, in which the motor is exposed in the luggage compartment, the heat radiation effect is sufficiently enhanced, and the motor is directly used when the user easily touches the luggage compartment or puts an object in the luggage compartment. It was designed so that it would not touch.

Means for Solving the Problems The present invention is to solve the above-mentioned problems, and a fan formed by a main body and a lid is provided with a dust collecting filter, a blower fan, and a fan chamber, and is connected to the blower fan to drive the blower fan. Install the motor by exposing it on the outer and lower surfaces of the box, embedding this motor at least in the trunk room side, and closely contacting this motor with the lower surface of the motor, and providing a metal mounting plate to ensure sufficient heat dissipation from the motor. It is highly safe as well as being carried out so that no one can touch the motor part directly.

Operation According to the above configuration, the motor is located at the lowermost end of the box, and has a large space for leaving in the luggage compartment, and the metal mounting plate that is in close contact with the motor further enhances the heat dissipation effect. With this mounting plate, it is possible to provide a vehicle-mounted air purifier with high safety such that the motor can be easily touched and the motor does not hit when putting an object in the luggage compartment.

Example An example of the present invention will be described below with reference to the accompanying drawings.

1 to 6, the vehicle-mounted air purifier body is a lower body
21, an upper main body 22, and a lid 20, and a lower main body 21 has a fan chamber 27 composed of an outer wall 25 hanging from a top plate portion 23 and a bottom plate portion 26, and a fan 28 is attached to a motor 28 fixed to the bottom plate portion 26. 29 is fixed and installed internally. The motor 28 is fixed to the bottom plate portion 26 by a mounting screw 56, with the lower surface being in close contact with a metallic mounting plate 55 with the side surface 28a exposed on the outer and lower surfaces of the bottom plate portion 26. The mounting plate 55 has a shape larger than the outer shape of the motor 28 and is mounted so as to substantially cover the bottom thereof. The top plate portion 23 is provided with a suction port 30 and has a supporting rib 32 for supporting a flat plate-shaped filter 31 above. The upper body 22 is connected to the lower body 21, and the lid 20 is detachably attached.

The lid 20 is provided with a large number of slit-shaped intake ports 33,
A discharger 37 composed of a discharge electrode 35 and a counter electrode 36 facing the discharge electrode 35 is held below the discharge electrode 35. Both the discharger 37 and the filter 31 have a shape close to a flat plate and are held horizontally, and the lid 20
Can be attached and detached together when opened.

The filter 31 is formed by adhering an electrostatic filter 38 and an activated carbon filter 39 incorporating activated carbon, which is inserted and removed from the lateral direction.

Reference numeral 40 is a gas sensor for detecting the degree of dirt in the air inside the vehicle. 41 is a printed circuit board to which the gas sensor 40 is attached, and the control circuit 42 controls the input of the motor 28 according to the input of the gas sensor 40.

The gas sensor 40 mounting part forms a small chamber 44 by the protective wall 43 and is cut off from the air passage in the main body, and smoke to the sensor enters through the ventilation port 45.

A gas intake port 46 formed with a thin grid is provided at a position of the lid body 20 facing the gas sensor 4, and a large dust such as cotton dust is prevented from entering through the intake grid.

The small chamber 44 in which the gas sensor 40 is mounted holds down the filter end and also serves as a filter guide, and the gas sensor 40 is located near the activated carbon filter 39.

Here, most of the lower main body 21 penetrates the rear tray 47 of the vehicle and enters the trunk room, and the portion that exits the rear tray 47 has a low total thickness.

48 is an exhaust port and 49 is a rear window of the car.

Reference numeral 50 denotes a metal fitting for fixing the main body to the vehicle, which projects downward from the vehicle body. And the screw hole provided in the lower body
Pass through 51 and fasten with nut 52 from above.

Reference numeral 53 is a spring plate that gives a tension to the discharge electrode 35 to indicate it, and 54 is a support plate that faces the support plate 53 and indicates the discharge electrode 35.

When the motor 28 is driven in the above structure, the air inside the vehicle sucked in through the intake port 33 is given positive ions when passing between the discharge electrode 35 and the counter electrode 36, and is electrically applied to the electrostatic filter 38 of the negative polarity behind. The odorous particles are adsorbed by the activated carbon filter 39.

The purified air thus purified passes through the fan chamber 29 and is exhausted into the vehicle through the exhaust port 48.

When the filter 31 is replaced or the discharger 37 is removed for cleaning, the lid 20 is opened, so that the work can be easily performed from the inside of the vehicle. In addition, it is easy to check the dirt condition of the filter, and it is easy to prevent deterioration of the cleaning performance due to dirt.

Even if it breaks down, the main body can be removed more easily than the conventional example, and therefore repair can be easily performed.

As described above, according to the present invention, not only the fan and the fan chamber are buried in the trunk room side, but also the fan driving motor connected to the fan is exposed downward from the bottom of the main body, so that the trunk room Although it is exposed to a wide space, the heat dissipation effect is good, and the metal mounting plate functions as a heat dissipation plate for the motor, and this heat dissipation effect can be promoted.

In addition, the user takes things in and out of the luggage compartment, but at this time, since the mounting plate covers the bottom of the motor, it does not accidentally touch the motor and the things taken in and out do not hit the motor, which is highly safe. Its practical value is great.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention, FIG. 2 is a front sectional view of the same, FIG. 3 is an exploded perspective view of the same, FIG. 4 is a top view of a discharge part, and FIG. A sectional view, FIG. 6 is a bottom view of the same, FIG. 7 is an exploded perspective view showing a conventional example, and FIG. 8 is a sectional view. 20 …… Lid, 28 …… Motor, 29 …… Fan, 31 …… Filter, 33 …… Intake port, 48 …… Exhaust port, 55 …… Mounting plate.

Claims (1)

[Claims] 1. A box body formed of a main body and a lid body having an intake port and an exhaust port, a dust collecting filter, a blower fan, and a fan chamber are built in, and a blower fan drive motor is exposed on an outer lower surface of the box body, An in-vehicle air purifier in which a metal mounting plate that covers almost the bottom of the motor is attached in close contact with the motor case, and at least the blower fan drive motor is embedded in the trunk room.