JP3119862B2 - Automotive air purifier - Google Patents

Description

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

2. Description of the Related Art In recent years, in-vehicle air purifiers for purifying smoke and smell of cigarettes in automobiles have increased, and it has become common to mount them on rear trays.

2. Description of the Related Art Conventionally, there is a vehicle-mounted air purifier installed in this type of rear array which is built in a trunk as shown in FIGS. That is, the motor 1 for driving the fan 2 is horizontally attached to the in-vehicle air purifier body A. The filter 4 is bent in a folding screen shape, and the main body A is divided into a filter case 5 for containing the filter 4 and a vortex chamber 3 for covering the fan 2, and air sucked from an intake port 6 provided corresponding to the filter 4 is filtered. The dust is filtered at 4 and is discharged through the exhaust port 7 through the vortex chamber 3.

Mounting bracket 9 for mounting the main body A in the trunk room of the car
The intake air and exhaust air pass through a grill 10 installed in a rear tray in the vehicle to purify the air in the vehicle. In the figure, reference numeral 11 denotes a packing for communicating the intake port 6, the exhaust port 7 and the grill 10 by air tight.

Problems to be Solved by the Invention In such a structure of a conventional vehicle air purifier, a grill is used.
When the speaker 10 is installed on the rear tray, the size of the rear tray is limited because the 10 spreads horizontally and takes up space for the rear tray.

The present invention solves the above-mentioned problems, and an object of the present invention is to provide a vehicle-mounted air purifier that is compact and has good installability.

Means for Solving the Problems In order to solve the above problems, the present invention provides a chamber that covers a fan, an air inlet that communicates with the chamber to take in air, and an air that communicates with the chamber and is purified by a dust collection unit. An exhaust port for discharging air, the intake port and the exhaust port are arranged close to the upper surface of the main body, and a flow direction of air flowing into the intake port,
The flow direction of the wind exhausted from the exhaust port is crossed so as to be opposite. Further, the chamber covering the fan is a vortex chamber, and a tongue portion is formed in the vortex chamber, and an intake passage communicating the intake port and the dust collecting section; an exhaust passage communicating the vortex chamber with the exhaust port; And a partition partitioning the exhaust passage, wherein the tongue portion is formed integrally with the partition. Further, the exhaust passage is disposed obliquely upward, and a filter is disposed below the exhaust passage.

According to the above configuration, even when the intake port and the exhaust port are provided close to each other, the flow direction of the air flowing into the intake port and the flow direction of the wind exhausted from the exhaust port intersect so as to be opposite to each other. As a result, the exhausted air rarely flows through the intake port, so that the size of the main body can be reduced without deteriorating the performance, and the installability can be improved. Further, since the tongue portion is integrated with the partition wall separating the intake passage and the exhaust passage, the size can be further reduced. Furthermore, by disposing the exhaust passage obliquely upward and disposing a filter in the space below the exhaust passage, the space below the exhaust passage can be effectively used, and the size can be further reduced.

Embodiment An embodiment of the vehicle air purifier of the present invention will be described below with reference to the accompanying drawings.

1 to 5, a main body 21 includes a swirl chamber 24 in which a fan 23 driven by a motor 22 is mounted at a lower portion of a rear tray of an automobile from the trunk room side, a discharger 25 for applying electric charges to dust in suction air, and an electric charge. A dust collection chamber 28 having a built-in dust collection unit 27 formed of a filter 26 for adsorbing dust and filtering suction air is formed.

An air passage 30 extending from the lower surface of the filter 26 to the suction port 29 of the vortex chamber 24 is formed by a lid 34 that is provided to be able to open and close with the main body lower member 31 and that is fixed by a mounting screw 32 and a claw 33.

The motor 22 has a disk 35 integrally mounted on the motor 22 and a vortex chamber.
It is fixed to a bolt 36 projecting from 24 by fastening with a nut 37. The outer shape of the filter 26 is reinforced by an auxiliary frame 38, and the filter 26 is inserted along a guide 39 from a side surface of the main body 21. The discharger 25 is composed of a discharge electrode 40 having needle-like projections, a counter electrode 41 provided opposite to the discharge electrode 40, and a resin plate 43 for holding these while insulating them.
A high voltage is supplied from a protruding high voltage terminal 45, and the counter electrode 41 is grounded.

A printed circuit board 60 for controlling the motor 22 is provided in the circuit room 44. The exhaust port 46 of the vortex chamber 24 is connected to the intake port 47 of the dust collection chamber 28.
Airtight with the grill 48, which is located close to the rear, is achieved by compressing a mouth-shaped packing 49 with a centered edge.

The vortex chamber 24, the motor 22, and the fan 23 are inclined obliquely upward toward the central exhaust port 46, and the air that has passed through the discharger 25 flows below the lower wall 50 of the exhaust path. The discharger 25 is fixed with a stopper plate 51 and a set screw 52.

The grill 48 has a front half of the intake grid 53 communicating with the intake port 47 and a rear half of the exhaust grid 54 with the exhaust port 46, and further has a stop lamp 55 linked to brake operation at the rear.
Are attached together. The right end of the intake grid 53 is closed, and intake air is mainly from the left side. Further, the left end of the exhaust grid 54 is closed, and the exhaust mainly exits from the right side.

In the above configuration, the air sucked by the fan 23 flows from the intake grid 53 to the intake port 47, and then the intake port 47 and the dust collecting section.
The gas enters the discharger 25 via an intake passage communicating with 27. Discharge is performed from the discharge electrode 40 to the counter electrode 41 in the discharge device 25, and charges the dust in the suction air. The suction air containing the charged dust also spreads under the lower wall 50 of the exhaust passage and under the circuit chamber 44, and passes through the entire area of the filter 26. Then, the dust is adsorbed by the filter 26 electrically grounded, and only the clean air enters the vortex chamber 24 through the air passage 30, and reaches the exhaust port 46 through the exhaust passage connecting the vortex chamber 24 and the exhaust port 46. It is supplied into the vehicle through the grid 54.

Here, the air flow is controlled by the suction port 47 and a filter that applies negative pressure.
26 position, the position of the exhaust 46 and the fan 23, and the intake port
Since they are arranged forward and backward at the center of the exhaust port 47 and the exhaust port 46, they flow crossing at the center. Intake grille 53 of grill 48,
The shape of the exhaust grid 54 also aids in the flow of air. Therefore, even if the intake grid 53 and the exhaust grid 54 are close to each other, the flow of air is in the opposite direction, and the exhaust is hardly sucked from the intake port 47. Therefore, the same performance as that of the related art can be obtained, but the width of the grill on the rear tray can be reduced, so that the space on the rear tray can be more widely used for other purposes.

Further, by forming the tongue portion 56 of the vortex chamber 24 integrally with the partition wall 57 separating the intake port 47 and the exhaust port 46 and disposing the intake port 47 in the tongue portion 56, the main body 21 can be reduced in size. Of course, the partition wall 57 is not straight as in this embodiment, but may be inclined or tapered.

Further, the vortex chamber 24, the motor 22, and the fan 23 are inclined upward toward the central exhaust port 46, thereby inclining the lower wall 50 of the exhaust path, and allowing the air to flow to the filter 26 under the exhaust path. Therefore, the main body can be made compact and a sufficient air passage can be secured. Reference numeral 58 in the figure denotes a boss for fastening the main body 21 to the vehicle.

Effects of the Invention As is apparent from the above description of the embodiment, according to the vehicle air purifier of the present invention, even if the intake port and the exhaust port are provided close to each other, the flow direction of the air flowing into the intake port And the flow direction of the wind exhausted from the exhaust port intersects so as to be opposite to each other, so that the exhausted air rarely flows in from the intake port. The space at the installation site can be widely used for other purposes. Further, since the tongue portion is integrated with the partition wall separating the intake passage and the exhaust passage, the size can be further reduced. Further, by disposing the exhaust passage obliquely upward and arranging a filter also in the space below the exhaust passage, the space below the exhaust passage can be effectively used, and further miniaturization can be achieved. An air passage can be secured.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an on-vehicle air purifier according to one embodiment of the present invention, FIG. 2a is a perspective view showing a cutaway part of the body, and FIG. 2b is a perspective view of the packing. 3, FIG. 3 is a perspective view of the grill portion, FIG. 4 is a plan view of the main body, FIG. 5 is a perspective view showing the structure of the discharger, and FIG. FIG. 6b is a cross-sectional view, FIG. 6b is a plan view of the same, and FIG. 7 is a perspective view of the vehicle-mounted air cleaner and the grill section. 21 ... Main unit, 22 ... Motor, 23 ... Fan, 24 ... Swirl chamber, 27 ... Dust collecting part, 28 ... Dust collecting chamber, 47 ... Inlet, 46 ...
... exhaust port, 56 ... tongs, 57 ... partition walls.

──────────────────────────────────────────────────続 き Continued from the front page (56) References JP-A-62-146714 (JP, A) JP-A 62-79553 (JP, U) JP-A 55-129113 (JP, U) JP-A 63-146 134810 (JP, U) Japanese Utility Model Showa 60-98516 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B60H 3/06 B03C 3/14 B03C 3/02

Claims (3)

(57) [Claims] A chamber that covers a fan, an air inlet that communicates with the chamber to take in air, and an air outlet that communicates with the chamber and that discharges air purified by a dust collector. An in-vehicle air purifier having a port disposed close to an upper surface of a main body, wherein a flow direction of air flowing into the intake port and a flow direction of wind exhausted from the exhaust port intersect with each other so as to cross each other. 2. A swirl chamber is a chamber covering the fan, a tongue portion is formed in the swirl chamber, and an intake passage communicating the intake port and the dust collecting section; an exhaust passage communicating the exhaust chamber with the swirl chamber; The vehicle-mounted air purifier according to claim 1, further comprising a partition separating the intake passage and the exhaust passage, wherein the tongue portion is formed integrally with the partition. 3. The on-vehicle air purifier according to claim 2, wherein the exhaust passage is disposed obliquely upward, and a filter is disposed in a space below the exhaust passage.