JPH0596115A - On-vehicle air cleaner - Google Patents

Abstract

(57) [Abstract] [Purpose] The structure that blows out the air that has passed through the fan of the vehicle-mounted air purifier in the upward direction, reduces the loss that blows out in the upward direction, and installs the wind trap section to mistakenly discharge it from the exhaust port. It provides a structure with high safety and low performance loss that allows foreign matter to enter into the wind trap. [Structure] A passage that rises upward is formed at the outlet of the vortex chamber that accommodates the fan of the vehicle-mounted air purifier body, and this passage is formed into an arc shape, and this passage is partially blocked by the end surface of the arc-shaped wall surface with a small curvature. A flat portion is provided, and a recessed portion is provided on the upper surface of the flat portion. [Effect] Since the passage is raised in an arc shape, there is little air resistance to the upward wind, and a recess is provided on the back side of the flat surface that partially closes the passage. It is possible to provide an in-vehicle air purifier with high safety and less loss of performance, because even if a foreign substance is accidentally put in from the exhaust side, it accumulates in this stagnation and does not reach the fan.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an on-vehicle air purifier in which a main body is provided in a trunk room at the rear of an automobile, and an intake / exhaust grill is installed on a rear tray at the rear of the passenger compartment. .

[0002]

2. Description of the Related Art In recent years, smoke and smell of cigarettes in automobiles,
In-vehicle air purifiers that purify particles such as exhaust gas and odors are increasing, and it is becoming common to mount the main body on the rear tray or in the trunk room. Conventionally, there is a vehicle-mounted air purifier in which a main body is mounted in a trunk room of this type and an intake / exhaust grill is installed on a rear tray, as shown in FIGS. Reference numeral 1 is a vehicle air purifier body. Reference numeral 2 denotes a filter, which is bent like a folding screen and faces an intake port 3 provided on the upper wall of the main body. A swirl chamber 4 is adjacent to the filter 2, has a blower motor 5 and a fan 6 built therein, has an inlet 7 for blowing air into the fan, and communicates with an outlet 8. A flow passage 9 is formed by the windward surface 10 of the filter 2, the vortex chamber 4 and the bottom wall 11 of the machine body.

The main body 1 is mounted in a trunk room of a vehicle by a mounting bracket 12, and intake air and exhaust gas pass through a grill 14 installed on a rear tray 13 in the vehicle to purify air in the vehicle.

Reference numeral 15 is an inlet 3, an outlet 8 and a grill 1.
4 is a duct that makes 4 air-tight and communicates with each other. The air sucked from the grill 14 has its dust filtered by the filter 2, and is discharged from the flow path 9 through the suction port 7, the vortex chamber 4 and the blowing port 8 through the grill 14.

[0005]

However, in the structure in which the main body is provided inside the trunk room and the grill is provided inside the vehicle compartment, the luggage storage space in the trunk room is ensured in terms of mounting. Therefore, the grille exhaust port is located almost directly above the blowout port, so that the wind flow is almost at a right angle, the ventilation resistance increases, and turbulence is generated. Since the air outlet is open, wind noise is generated at the fan side end surface of the air outlet, resulting in performance degradation and noise. Further, when foreign matter, such as small stones, enters from the exhaust port of the grill, it is easy to enter the fan portion from the duct, and there is a problem that the fan is damaged or a rattling noise is generated, which causes discomfort. The present invention solves the above-mentioned problem, and prevents the turbulent flow by providing a rectifying wall at the blowout port portion and prevents foreign matter collected from the exhaust port from entering the fan portion by utilizing the rectifying wall. Is what you are trying to do.

[0006]

In order to achieve the above-mentioned object, according to the present invention, a wind impinging wall surface of an outlet forming wall is raised in an arc shape toward the grill side at an outlet end portion. The ventilation resistance of the wind is reduced and the wind direction is directed slightly toward the position facing the collision wall surface (the fan side end of the blowout port). A flat wall is formed at the end of the outlet on the fan side so as to block the ventilation area of the duct, and the partition wall is provided by raising the base from the flat wall toward the grill side and raising the base in an arc shape. Eliminate the wind noise at the end of the side and form a concave pocket with the partition wall that has risen up, and foreign substances that try to enter from the exhaust port will be dropped in the pocket by putting it in the flow of the wind and do not need to enter the fan part Is to

[0007]

Since the vehicle air cleaner of the present invention employs the above-mentioned means, the wind flowing from the vortex chamber to the duct can reduce the ventilation resistance due to the collision wall and the straightening wall which are raised in an arc shape, and the turbulence is disturbed. It eliminates the flow and wind noise and prevents foreign matter from entering the fan section, resulting in good and quiet performance, and can prevent fan breakage and abnormal noise.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In the figure, reference numeral 15 denotes a vehicle-mounted air purifier body. Reference numeral 16 denotes a filter, which is bent like a folding screen and faces a suction port 17 provided on the upper wall surface of the main body 15. Reference numeral 18 denotes a vortex chamber, which has a fan 16 adjacent to which a blower motor 19 and a fan 20 are built in, and has a suction port 21 for the wind fan 20 and a vent 22. Reference numeral 23 is a ventilation path, and the filter wind lower surface 24, the suction port constituting surface 25 of the vortex chamber 18 and the lower wall 26 of the aircraft
It consists of and. 27 is a grill which is installed in the vehicle and has an intake port 28 and an exhaust port 29. Reference numeral 30 denotes a duct that connects the suction port 17 to the intake port 28 and the outlet port 22 to the exhaust port 28.

Reference numeral 31 designates a vortex chamber 18 forming an outlet 22.
Most of the wind from the fan 20 hits against the wall, and it is a collision wall.
It is launched in an arc shape toward. Reference numeral 32 denotes a straightening wall, and the flat wall 33 and the rising portion from the flat wall toward the grill 27 side are arc-shaped so as to block the ventilation area of the duct 30 at the end of the blower port facing the collision wall 31 on the fan 20 side. The partition wall 34 that was started up and the pocket 35
Is formed. The dirty air sucked from the intake port 28 is discharged from the exhaust port 29 of the grill 27 through the ventilation path 23, the fan 20, the vortex chamber 18, the discharge port 22 and the duct 30. 36 is a metal fitting for attaching the main body to the body of the car.

The wind flowing from the vortex chamber toward the duct has its ventilation resistance relieved by the collision due to the arc of the collision wall, is smoothly guided to the duct without causing turbulence, and flows slightly in the pocket direction. The wind pressure disappears when you get on the pocket and falls into the pocket, and there is no entry into the fan part. Further, the wind noise at the fan side end of the outlet is extinguished at the arc portion of the straightening wall.

[0011]

As described above, according to the present invention, a simple straightening back wall and a pocket are formed by using the straightening back wall and the straightening wall in the shape and the end of the wall forming the outlet of the vortex chamber. In addition, it is possible to provide a car air purifier with no fan damage or noise.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an on-vehicle air purifier showing an embodiment of the present invention and a mounted state.

FIG. 2 is a sectional view taken along the line AA of the vehicle-mounted air purifier body of FIG.

FIG. 3 is a sectional view of the vehicle-mounted air cleaner taken along the line BB of FIG.

FIG. 4 is an on-vehicle air purifier showing an example of a conventional example and a mounting state diagram.

FIG. 5 is a sectional view of the in-vehicle air cleaner body taken along the line C-C of FIG.

FIG. 6 is a sectional view of the air cleaner for vehicle taken along the line D-D of FIG.

[Explanation of symbols]

 15 Main body 16 Filter 18 Vortex chamber 19 Motor 20 Fan 21 Suction port 22 Blow-out port 23 Ventilation path 30 Duct 31 Collision wall 33 Plane wall 34 Partition wall 35 Pocket

Claims (1)

[Claims] 1. A dust collecting filter, a motor and a fan housed in a vortex chamber are built in the main body, and an air passage is formed between the lower surface of the vortex chamber and an inner wall of the main body, and the air passage is almost formed with respect to the air passage. In a car air purifier in which an exhaust air outlet is formed in a vertical direction in a swirl chamber and an exhaust grill having an exhaust port is located above the vehicle interior, a wind collision wall surface of the air outlet port forming wall of the swirl chamber A car air purifier in which a concave pocket is formed by a partition wall that is formed in an arc shape by providing a straightening wall at the end of the outlet substantially facing the collision wall surface, while the straightening wall is formed in an arc shape.