JP2009235978A - Air cleaner attachment structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the number of components and assembly man-hour when an air cleaner provided with an intake air duct including an intake port is attached into a vehicle body engine room, and to further reduce intake air temperature. <P>SOLUTION: A structure supporting and fixing a part of the intake air duct to a refrigerant conduit of a vehicle body air conditioning deice provided in a vehicle body engine room is employed for an attachment structure of the air cleaner provided with an intake air duct including an intake port into the vehicle body engine room. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an air cleaner mounting structure in a vehicle equipped with an engine.

  In vehicles such as automobiles equipped with an engine, in order to prevent a loss of high intake air temperature, there are many cases in which the intake duct of the air cleaner is extended so that fresh air as low as possible can be introduced from the end of the engine room. .

In the conventional one, for example, the extended intake duct is directly supported on the inner wall of the vehicle body engine room via a bracket. However, since such an intake duct is easily deformed, the multiple intake ducts are respectively connected via brackets at a plurality of locations. It was necessary to fix and hold the vehicle (see, for example, Patent Document 1).
JP 2007-90997 A

  In the above-mentioned conventional one, brackets need to be arranged at a plurality of locations, so that the number of parts is large and it is difficult to reduce the number of assembly steps.

  In addition, although the intake duct is extended, the air in the vehicle body engine room is sucked, so that there is a problem that air having a certain temperature must be sucked.

  The object of the present invention is to solve the problems described above.

  In order to solve the above problems, an air cleaner mounting structure according to the present invention is a structure for mounting an air cleaner provided with an intake duct having an intake port in a vehicle body engine room, and is provided in the vehicle body engine room. A part of the intake duct is supported and fixed to the refrigerant pipe of the vehicle body air conditioner.

  In such a case, since the intake duct is supported and fixed to the refrigerant pipe, at least one bracket can be omitted. In addition, heat exchange between the refrigerant pipe and the intake air can reduce the intake air temperature.

  In the present invention, the “refrigerant pipeline” refers to a pipeline portion whose surface temperature is lower than the temperature in the vehicle body engine room among the pipelines through which the refrigerant of the vehicle body air conditioner circulates. It is preferable to use a portion called a pipe as the refrigerant pipe.

  In order to solve the above problems, it is desirable to insert the intake port of the intake duct into the refrigerant pipe in order to more reliably support the intake duct. In other words, with such a configuration, the tip end portion of the intake duct to which the most rotational moment is applied can be prevented from rotating by the refrigerant pipe, so that the intake duct can be reliably supported and fixed to the vehicle body. In addition, according to such a configuration, it is only necessary to provide an inlet for inserting the refrigerant duct into the intake port of the intake duct, so that the configuration of the intake duct can be simplified.

  Further, in order to solve the above problems, in order to particularly increase the effect of reducing the intake air temperature, it is desirable to provide a wing-like fin at a portion where the intake port of the intake duct of the refrigerant pipe is inserted. If this is the case, it is possible to promote heat exchange between the refrigerant pipe and the sucked air without unduly increasing the pressure loss of the intake air, and it is possible to further reduce the intake air temperature. Become.

  According to the present invention, since at least one bracket for supporting and fixing the intake duct can be omitted, it is possible to reduce the number of parts and the number of assembly steps. In addition, since the intake air temperature can be reduced due to the presence of the refrigerant pipe, the intake air temperature increase loss can be further reduced.

  Hereinafter, an embodiment of the present invention will be described.

  FIG. 1 schematically shows the inside of a vehicle body engine room 1 of an automobile, and an engine body and the like are not shown because they are ordinary ones.

  In this embodiment, as shown in FIG. 1, the intake duct 3 of the air cleaner 2 for guiding intake air to the engine body is extended to the vicinity of the side wall 4 of the vehicle body engine room 1. In the vicinity of the side wall 4 of the vehicle body engine room 1, a suction pipe 5 that is a refrigerant pipe of the vehicle body air conditioner is disposed. Although not shown, the vehicle body air conditioner mainly includes a compressor that is drivingly connected to the engine and compresses the refrigerant, a condenser that cools and liquefies the refrigerant compressed by the compressor, and a partition from the engine room 1. It is the thing of the well-known structure comprised from the evaporator which is distribute | arranged to the vehicle interior and the refrigerant | coolant of a liquid state passes. When the refrigerant passes through the evaporator, it takes heat from the passenger compartment to become a gas, and the gas refrigerant is compressed by the compressor. Specifically, the suction pipe 5 in this embodiment refers to a return pipe for returning the gaseous refrigerant from the evaporator to the compressor.

  The intake duct 3 has a pipe shape in which the base end 3 a is connected to the intake inlet 6 a of the air cleaner body 6. An intermediate portion of the intake duct 3 is provided with a deformation promoting portion 3b having a bellows shape. An intake port 3 c formed at the tip of the intake duct 3 is located in the vicinity of the side wall 4 of the vehicle body engine room 1. The intake port 3c is provided with an insertion port 3d opened in the distal direction. The insertion ports 3d are respectively provided on the upper wall and the bottom wall of the intake port 3c, and these insertion ports 3d are inserted into the suction pipe 5 in the manner shown in FIG. The side edge of the insertion port 3d is in contact with the suction pipe 5, thereby restricting the movement of the intake port 3c in the width direction of the insertion port 3d. Further, an attachment portion 3e is provided at an intermediate portion between the deformation promoting portion 3b and the intake port 3c of the intake duct 3, and this attachment portion 3e is supported on the inner wall of the vehicle body engine room 1 as a vehicle body via the bracket 7. It is fixed. The mounting portion 3e and the bracket 7 are fixed by fixing means such as bolts. In FIG. 1, the member denoted by reference numeral 9 is a right headlamp.

  With such a configuration, the front end portion of the intake duct 3 is supported and fixed by the suction pipe 5, so that the number of brackets can be reduced. Therefore, the number of parts and the number of assembly steps can be reduced. Particularly in this embodiment, the suction pipe 5 prevents the horizontal shake x in the direction orthogonal to the extending direction of the intake duct 3, and the bracket 7 prevents the vertical shake y and the shake z of the intake duct in the extending direction. Therefore, the swing of the intake duct 3 can be efficiently suppressed by the single bracket 7. In addition, when the vehicle air conditioner is used, the suction pipe 5 is cooled to a minimum of about 2 ° C., so that the intake air A introduced into the intake duct 3 from the suction port 3 c is heat-exchanged with the suction pipe 5. It is cooled by. Therefore, the temperature of the intake air A can be reduced. That is, it is possible to further reduce the intake air high temperature loss. In addition, since the intake port 3c located at the front end of the intake duct 3 to which the most rotational moment is applied can be stopped by the refrigerant pipe 5, the intake duct 3 can be reliably supported and fixed to the vehicle body. And since the inlet 3d for inserting in the suction pipe 5 is provided in the inlet 3c of the intake duct 3, and the inlet 3c can be supported by the suction pipe 5 only by inserting this inlet 3d into the suction pipe 5. The configuration of the intake duct 3 can be simplified.

  In addition, this invention is not limited to one Example described above, For example, what is shown to FIG.3 and FIG.4 may be used. In other words, this device is provided with a plurality of wing-like fins 8 in a suction pipe 5 serving as a refrigerant pipe into which the intake port 3d of the intake duct 3 is inserted. The intake port 3c of the intake duct 3 is inserted into the portion where the fins 8 are provided. In addition, the same code | symbol is attached | subjected to the part which is the same as that of the said Example, or it abbreviate | omits description.

  With such a configuration, the fin 8 extends in the direction of the flow of the intake air A, and the fin 8 also contacts the intake air A. Therefore, the suction pipe is not caused without causing a special pressure loss of the intake air A. 5 and the intake air A can be further promoted.

  The embodiment shown in FIG. 5 is also included in the present invention. This is provided by passing a suction pipe 5 through an intake port 3 c of the intake duct 3. Even in such a case, heat exchange between the intake air A and the suction pipe 5 is possible in the same manner. Further, the suction pipe 5 can simultaneously suppress the shake in the extending direction of the intake duct and the shake in the direction orthogonal to the extending direction.

  Furthermore, the embodiment shown in FIG. 6 is also included in the present invention. In this device, a holding claw 3f provided integrally with the intake duct 3 is engaged with the suction pipe 5 by utilizing a temporary elastic deformation of the member. The solid line in FIG. 6 shows an example in which the holding claw 3f is provided extending from the opening end of the intake port 3c. However, as shown by the imaginary line in the figure, the holding claw 3f is provided on the outer peripheral surface of the intake port 3c. May be provided protruding. Even in this case, a certain degree of cooling effect by the suction pipe 5 can be expected.

BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows one Example of this invention. The longitudinal cross-sectional view which shows the inlet port periphery of the intake duct in the Example. The disassembled perspective view which shows the 2nd Example of this invention. The longitudinal cross-sectional view which shows the inlet port periphery of the intake duct in the Example. The perspective view which shows the 3rd Example of this invention. The fragmentary longitudinal cross-section which shows the inlet port periphery which shows the 4th Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Car body engine room 2 ... Air cleaner 3 ... Intake duct 3c ... Intake port 5 ... Suction pipe (refrigerant pipe line)
8 ... Fins

Claims (3)

An air cleaner having an air intake duct having an air intake port is mounted in a vehicle body engine room, and a part of the air intake duct is supported and fixed to a refrigerant pipe of a vehicle body air conditioner provided in the vehicle body engine room. An air cleaner mounting structure characterized by 2. The air cleaner mounting structure according to claim 1, wherein an intake port of the intake duct is inserted into the refrigerant pipe. The air cleaner mounting structure according to claim 2, wherein a wing-like fin is provided in a portion of the refrigerant duct into which the intake port of the intake duct is inserted.

Images