JP3228054B2 - Arrangement structure of air conditioning hose - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for arranging an air conditioning hose used in an air conditioner for an automobile, and more particularly to a compressor arranged in an engine room of a vehicle and a cooling system arranged in a vehicle interior. The present invention relates to a structure for arranging an air conditioning hose connected to a unit.

[0002]

2. Description of the Related Art FIGS. 6 and 7 show a conventional example of such an air-conditioning hose arrangement structure.
1 is an upper member constituting the front part of the body of a four-wheeled vehicle;
Is a front bumper arranged corresponding to the front part of the upper member 1, 3 is a compressor which is one of the components of an air conditioner for a vehicle, and 4 is an air conditioning hose which is a part of a refrigerant circuit of the air conditioner for a vehicle. (Suction hose).
The above-described air conditioning hose 4 is connected between the compressor 3 disposed in the engine room 5 of the vehicle and a cooling unit (not shown) disposed in the vehicle interior, and is provided with a low-temperature, low-pressure vaporized gas in the cooling unit. Is supplied to the compressor 3 through the air conditioning hose 4.

The air conditioning hose 4 is arranged substantially linearly along the upper member 1 as shown in FIGS. 6 and 7, and the air conditioning hose 4 is displaced when the front bumper 2 is assembled to the vehicle body. The air-conditioning hose 4 is locked to the upper member 1 by a clip member 6 in order to prevent the occurrence of the air-conditioning. The air-conditioning hose 4 is piped along the upper member 1 so as to pass through the rear surface 2a of the front bumper 2. On the rear surface 2a side of the front bumper 2, the upper edge portion of the front bumper 2, that is, the front bumper 2 Upper portion 2 above opening 7 formed in
b.

[0004]

However, the conventional arrangement structure of the air-conditioning hose 4 as described above has the following various problems. First, the conventional arrangement structure of the air conditioning hose 4 requires a space for passing the air conditioning hose 4 between the upper member 1 and the front bumper 2.
In addition, it is necessary to use the clip member 6 so that the air conditioning hose 4 does not shift when the front bumper 2 is assembled.

It is desirable that the length of the air conditioning hose 4 be as long as possible in order to prevent vibration from the compressor 3. However, conventionally, the air conditioning hose 4 is laid out along the upper member 1 as described above. Therefore, in reality, the length cannot be made sufficiently long.

Further, the air-conditioning hose 4 is susceptible to hot air in the engine room 5, and is exposed to high temperature by the hot air, so that the temperature of the low-temperature and low-pressure gas refrigerant in the air-conditioning hose 4 tends to increase. For this reason, a problem occurs in which the load on the engine (the drive source of the compressor 3) increases.

SUMMARY OF THE INVENTION The present invention has been made to solve such various problems, and an object thereof is to provide a long layout of an air-conditioning hose connected between a compressor and a cooling unit. The transmission of vibration from the compressor can be reduced, and the air-conditioning hose can be cooled by the vehicle speed wind passing through the opening of the bumper, and the temperature rise of low-temperature and low-pressure gas refrigerant in the air-conditioning hose can be reduced. ,
In addition, it is an object of the present invention to provide an air-conditioning hose arranging structure that can reduce the power consumption of the compressor and reduce the load of the air conditioner on the engine.

[0008]

According to the present invention, there is provided an air conditioning system connected between a compressor disposed in an engine room of a vehicle and a cooling unit disposed in the vehicle interior. The hose is configured to be piped on the rear surface side of the bumper along a path passing through the left and right sides of the bumper and the lower end between the left and right sides.

In the present invention, a part of the air conditioning hose is arranged to face the opening of the bumper.

Further, in the present invention, a hose fitting portion is formed by providing a projecting piece in a bumper mounting concave portion at a position below the left and right center of the bumper, and the air conditioning hose is mounted in the hose fitting portion. An intermediate portion of the air conditioning hose is configured to be locked in the bumper mounting recess.

[0011]

The piping of the air conditioning hose connected between the compressor and the cooling unit is made to pass through the left and right sides of the bumper and the lower end between the left and right sides of the bumper. The length is set longer than in the conventional case, and the transmission of vibration from the compressor is reduced. In addition, by disposing a part of the air conditioning hose facing the opening of the bumper, the vehicle speed wind flowing through the opening hits a part of the air conditioning hose, and the refrigerant flowing through that part is cooled. Further, by locking the intermediate portion of the air conditioning hose to the bumper mounting concave portion, the swing of the air conditioning hose can be prevented (vibration prevention).

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 4, the same parts as those in FIGS. 6 and 7 are denoted by the same reference numerals.

FIGS. 1 and 2 show a vehicle body front portion 10 of a four-wheeled vehicle equipped with an air-conditioning hose arrangement structure according to a first embodiment of the present invention. The vehicle includes an upper member 1 and a cross member 11, which are arranged along the left-right direction of the vehicle body and arranged substantially parallel to each other at upper and lower portions. A front bumper 2 is disposed in front of the upper member 1 and the cross member 11, and a lower portion of the front bumper 2 is integrally formed with a lower end edge of a left and right central portion.
2 is bolted to the cross member 11 via the bracket 13. The front bumper 2 is also bolted to the vehicle body such as the cross member 11 at other appropriate locations.

In the engine room 5 at the rear of the front bumper 2, an air-conditioning compressor 3 driven by an engine is disposed near the side of the upper member 1 as shown in FIG. An air-conditioning hose (supply cushion hose) 15 is provided between the compressor 3 and a cooling unit (evaporator) (not shown) arranged in the vehicle interior.
Is connected. Thus, the low-temperature and low-pressure gas refrigerant vaporized in the above-described cooling is supplied to the air conditioning hose 1.
5 to be supplied to the compressor 3. Although not shown, the compressor 3
The refrigerant whose potential has been raised to a high temperature and a high pressure is supplied from the compressor 3 to a condenser (not shown), becomes a high temperature and a high pressure liquid refrigerant, and is stored in a receiver. It is configured to be returned to the cooling unit as a refrigerant in an atomized state.

On the other hand, the above-mentioned air conditioning hose 15 is connected to the upper member 1 and the front bumper 2 as follows. That is, the hose portion on the compressor 3 side of the air conditioning hose 15 is, as shown in FIG.
On the back surface 2a side of the front bumper 2, the right and left sides A and B of the front bumper 2 and these left and right sides A,
The pipe is routed in a state of being detoured along a substantially U-shaped pipe route passing through a lower end portion C between B.

More specifically, one end of the air conditioning hose 15 is connected and fixed to the compressor 3, and an intermediate portion thereof is held by a clamp 30 attached to the cross member 11. The hose portion between the compressor 3 and the clamp 30 is piped along the substantially U-shaped pipe route as described above, and is connected to the lower end portion C of the front bumper 2.
The left and right intermediate portions are disposed at a height position between the upper member 1 and the cross member 11 in a state where they are placed on the upper portion of the bumper mounting concave portion 12 on the back surface 2a side of the front bumper 2 as shown in FIG. It is arranged at a position in front of the installed engine mount 16. The left and right side portions of the hose portion 15a are vertically piped substantially along both side portions of the opening 7 on the back surface 2a side of the front bumper 2.

The hose portion 15a of the air-conditioning hose 15 thus piped is piped on the back surface 2a side of the front bumper 2 at a position corresponding to the opening 7 formed in the front bumper 2. The hose portion 15a is arranged to face a space at the lower end of the opening 7.

According to the arrangement structure of the air-conditioning hose 15 of this embodiment, the piping path of the air-conditioning hose 15 does not have to be a straight line along the upper member 1 as in the related art.
Left and right sides A and B and lower end C of the front bumper 2
And the hose portion 15a of the air-conditioning hose 15 is routed to the upper part of the bumper mounting recess 12 at the lower part of the front bumper 2 and to the position in front of the engine mount 16 so that the U-shaped path is arranged. The length of the air-conditioning hose 15 can be set longer than in the conventional case, so that the transmission of vibration from the compressor 3 can be reduced.

Further, the hose portion 1 of the air conditioning hose 15
5a is arranged so as to face the opening 7 of the front bumper 2, so that the vehicle speed wind flowing through the opening 7 during traveling travels against the above-mentioned hose portion 15a. The temperature rise of the low-pressure gas refrigerant can be suppressed, and the power consumption of the compressor 3 can be reduced, and the load of the air conditioner on the engine can be reduced.

FIGS. 3 to 5 show a second embodiment of the present invention. In this embodiment, the hose portion 15a of the air-conditioning hose 15 is provided with a compressor in the same manner as in the above-described embodiment. 3 and the clamp 30 at two places,
The intermediate portion is also locked at the bumper mounting recess 12. That is, in this example,
A hose fitting portion 17 composed of a pair of protruding pieces 19 and 20 is integrally formed in the bumper mounting concave portion 12 at a lower portion on the left and right center of the front bumper 2 (see FIGS. 4 and 5), and the inside of the hose fitting portion 17 is air-conditioned. Part 15 of hose 15
The middle part of a is engaged. When fitting the hose portion 15a into the hose fitting portion 17, the bumper mounting recess 12b of the front bumper 2 is used.
Hose portion 15 between a pair of projecting pieces 19, 20 formed in
a is pushed in to elastically deform and pass through the space, and the hose portion 15a is engaged in the hose fitting portion 17 in accordance with the subsequent elastic return, so that the hose portion 15a can be engaged without using special mounting parts such as bolts. Is possible.

On the other hand, the hose portion 15a engaged in the hose fitting portion 17 as described above is substantially V-shaped so that both side portions of the engaging portion correspond to the opening 7 of the front bumper 2. It is piped in a state of being bent in a letter shape (see FIG. 3).

According to this structure, the same operation and effect as those of the first embodiment can be obtained, and the positioning and locking of the air conditioning hose 15 can be performed without using the clamp member without using the clamp member. 2 and the pair of left and right hose fitting portions 17 can be easily performed, so that the layout of the air conditioning hose 15 is facilitated.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications and changes can be made based on the technical concept of the present invention. For example, the configuration of the hose fitting portion 17 provided on the front bumper 2 can be changed as appropriate. By providing the hose fitting portion 17 at an upper portion of the bumper mounting concave portion 12, it corresponds to the opening 7 of the front bumper 2. It is also possible to configure the hose portion 15a to be as large as possible.

[0024]

As described above, according to the present invention, the air-conditioning hose connected between the compressor and the cooling unit is provided on the rear side of the bumper at the left and right sides of the bumper and at the lower end between the left and right sides. The piping is configured so as to be routed along the path that passes through, so that the air-conditioning hose can be formed in a long layout without being locked using a clamp member, and the vibration is transmitted from the compressor to the air-conditioning hose. Can be reduced.

Further, since a part of the air-conditioning hose is arranged to face the opening of the bumper, the vehicle speed air flowing through the opening hits the part of the air-conditioning hose and cools it. Temperature rise of low-temperature and low-pressure gas refrigerant flowing in the hose for the engine can be suppressed, and the power consumption of the compressor driven by the engine can be reduced, and the load of the air conditioner on the engine can be reduced. it can.

Also, a hose fitting portion is formed in a bumper mounting concave portion at the lower left and right center of the bumper, and an air conditioning hose is mounted in the hose fitting portion so that the air conditioning hose is locked to the bumper. By doing
Positioning and layout of the air conditioning hose when piping can be easily performed, and vibration of the air conditioning hose can be prevented (vibration prevention).

[Brief description of the drawings]

FIG. 1, showing a first embodiment of the present invention, is a perspective view of a front portion of a vehicle body of a four-wheeled vehicle provided with an air-conditioning hose arrangement structure.

FIG. 2 is a sectional view taken along line XX in FIG.

FIG. 3, showing a second embodiment of the present invention, is a perspective view of a front portion of a vehicle body of a four-wheeled vehicle provided with an air-conditioning hose arrangement structure.

FIG. 4 is a sectional view taken along line YY in FIG. 3;

FIG. 5 is an enlarged perspective view of a side portion of a front bumper.

FIG. 6 is an exploded perspective view showing an arrangement structure of a conventional air conditioning hose.

FIG. 7 is a cross-sectional view of a conventional air-conditioning hose arrangement structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper member 2 Front bumper 3 Compressor 5 Engine room 7 Opening 10 Body 11 Cross member 12 Bumper mounting recess 15 Air-conditioning hose (suction hose) 15a Hose part 16 Engine mount 17 Hose fitting part 19, 20 Projection piece 30 Clamp A, B Front and left sides of front bumper C Lower end of front bumper

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60H 1/32

Claims (3)

(57) [Claims] An air-conditioning hose connected between a compressor disposed in an engine room of a vehicle and a cooling unit disposed in the vehicle interior is provided on the rear side of the bumper on both left and right sides of the bumper, An arrangement structure of an air conditioning hose, wherein the piping is arranged along a path passing through a lower end portion between left and right side portions. 2. The air-conditioning hose arrangement structure according to claim 1, wherein a part of the air-conditioning hose is arranged to face the opening of the bumper. 3. A hose fitting portion is formed by providing a projecting piece in a bumper mounting concave portion at a lower portion of the left and right center of the bumper, and the air conditioning hose is mounted in the hose fitting portion. The air-conditioning hose arrangement structure according to claim 1 or 2, wherein an intermediate portion of the hose is engaged with the bumper mounting concave portion.