JP2019015245A - Air cleaner - Google Patents

Abstract

To reduce damage received by a person colliding with an engine hood and secure an appropriate flow rate of air sent out from an air cleaner.SOLUTION: An air cleaner 100 includes: an upper case 20 disposed below an engine hood of a vehicle; a lower case 10 accommodating a filter element 30 through which air taken in from outside of the vehicle passes and mounted to the lower side of the upper case 20; and an outlet pipe 21 provided in the upper case 20, connected to a duct and sending out the air that has passed through the filter element 30 to the duct. The upper case 20 comprises a thin wall section having thickness at a level that prevents deformation of the upper case 20 due to intake negative pressure and causes breakage when a load is applied due to abutment of the engine food. The outlet pipe 21 comprises a thick wall section thicker than the thin wall section.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an air cleaner that cleans intake air.

  Conventionally, the engine room below the engine hood (also referred to as a bonnet) of the vehicle is provided with an air cleaner that cleans the air taken from outside the vehicle. However, it may collide with the engine hood and be damaged by the rigidity of the air cleaner.

  As a conventional technique for solving such a problem, there is an air cleaner in which an upper case located below an engine hood is formed of an elastic member (see, for example, Patent Document 1). In this air cleaner, when the pedestrian collides with the engine hood and the deformed engine hood comes into contact with the upper case, the upper case is deformed, so that damage to the pedestrian can be reduced.

JP 2008-230605 A

  The upper case of the air cleaner is provided with an outlet pipe connected to the duct, and the outlet pipe and the duct are connected by, for example, a fastener. However, when the outlet pipe is formed of an elastic member, the radial cross-sectional area of the outlet pipe is reduced by tightening. As a result, there is a problem that the flow rate of air sent from the air cleaner decreases.

  An object of the present invention is to provide an air cleaner that can reduce damage to a person who collides with an engine hood and can secure an appropriate flow rate of air sent from the air cleaner.

  An air cleaner according to the present invention includes an upper case disposed below an engine hood of a vehicle, a lower case that accommodates a filter element through which air taken in from outside the vehicle passes, and is attached to the lower side of the upper case; An outlet pipe that is provided in the case and connected to the duct and that sends the air that has passed through the filter element to the duct. The outlet pipe is formed of a thicker portion thicker than the thinned portion.

  ADVANTAGE OF THE INVENTION According to this invention, the damage which the person who collided with the engine hood can receive can be reduced, and the flow volume of the appropriate air sent from an air cleaner can be ensured.

The perspective view of the air cleaner concerning an embodiment of the invention The exploded perspective view of the air cleaner concerning an embodiment of the invention Sectional drawing of the air cleaner which concerns on embodiment of this invention

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  An air cleaner 100 according to an embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a perspective view showing an air cleaner 100. FIG. 2 is an exploded perspective view of the air cleaner 100. FIG. 3 is a cross-sectional view of the air cleaner 100.

  The air cleaner 100 is a device that is installed in an engine room below an engine hood of a vehicle and cleans air taken in from the outside of the vehicle.

  The air cleaner 100 includes a lower case 10 (also referred to as a body) and an upper case 20 (also referred to as a cover). The upper case 20 is disposed below the engine hood. The lower case 10 is attached to the lower side of the upper case 20.

  The lower case 10 is provided with an inlet pipe 11. The inlet pipe 11 is connected to a first duct (not shown) through which air taken from the outside of the vehicle flows. The air flowing through the first duct flows into the lower case 10 from the inlet pipe 11.

  Further, the filter element 30 is accommodated in the lower case 10. The air that has flowed into the lower case 10 passes through the filter element 30, thereby removing fine foreign matters contained in the air and becoming purified air.

  The upper case 20 is provided with an outlet pipe 21. Connected to the outlet pipe 21 is a second duct (not shown) through which air sent from the air cleaner 100 flows. The air that has passed through the filter element 30 flows into the upper case 20 and is sent from the outlet pipe 21 to the second duct. Thereafter, the air is supplied to the internal combustion engine of the vehicle.

  The lower case 10, the inlet pipe 11, the upper case 20, and the outlet pipe 21 are made of a resin such as PP, for example.

  As shown in FIG. 3, the upper case 20 is composed of a thin portion 20a. The thickness of the thin portion 20a is, for example, such a thickness that the upper case 20 is not deformed by the intake negative pressure and is damaged when the engine hood comes into contact and a load is applied.

  On the other hand, as shown in FIG. 3, the outlet pipe 21 includes a thick portion 21a that is thicker than the thin portion 20a. The thickness of the thick portion 21a is such that, for example, when the outlet pipe 21 and the second duct are connected by a predetermined fastener, the radial cross-sectional area of the outlet pipe 21 is not reduced by tightening. is there.

  As described above, the air cleaner 100 according to the present embodiment collides with the engine hood by configuring the upper case 20 positioned below the engine hood with a thin portion and configuring the outlet pipe 21 with a thick portion. Damage to a person can be reduced, and an appropriate flow rate of air sent from the air cleaner can be secured.

  Although the embodiments of the present invention have been described in detail, the present invention is not limited to the above-described embodiments, and can be appropriately modified and implemented without departing from the spirit of the present invention. is there.

<Summary of this disclosure>
An air cleaner according to the present invention includes an upper case disposed below an engine hood of a vehicle, a lower case that accommodates a filter element through which air taken in from outside the vehicle passes, and is attached to the lower side of the upper case; An outlet pipe that is provided in the case and connected to the duct and that sends the air that has passed through the filter element to the duct, and the upper case is deformed by negative intake pressure. The outlet pipe is formed of a thicker portion thicker than the thinned portion, and the outlet pipe has a thickness that can be broken when a load is applied by contact with the engine hood.

  In the air cleaner, the thickness of the thick portion is such that when the outlet pipe and the duct are connected by a predetermined fastener, the radial cross-sectional area of the outlet pipe is not reduced by tightening. Thickness may be sufficient.

  In the air cleaner, the upper case and the outlet pipe may be made of the same resin.

  The present invention can be applied to an air cleaner that cleans intake air.

DESCRIPTION OF SYMBOLS 10 Lower case 11 Inlet pipe 20 Upper case 20a Thin part 21 Outlet pipe 21a Thick part 30 Filter element 100 Air cleaner

Claims (3)

An upper case disposed below the engine hood of the vehicle;
A lower case that houses a filter element through which air taken from outside the vehicle passes, and is attached to the lower side of the upper case;
An outlet pipe provided in the upper case and connected to a duct and for sending air that has passed through the filter element to the duct;
The upper case is
The upper case is composed of a thin part that is not deformed by the intake negative pressure and has a thickness that can be broken when a load is applied by contact of the engine hood,
The outlet pipe is
It is composed of a thick part thicker than the thin part,
Air cleaner. The thickness of the thick portion is a thickness that does not reduce the radial cross-sectional area of the outlet pipe by tightening when the outlet pipe and the duct are connected by a predetermined fastener.
The air cleaner according to claim 1. The upper case and the outlet pipe are made of the same resin,
The air cleaner according to claim 1 or 2.

Images