JPS62253524A - Heat discharging structure for vehicle - Google Patents

Abstract

PURPOSE:To prevent a housing from being overheated by using at least one of stanchions supporting the roof of a vehicle body as a heat discharging pipe through which the hot air of the housing of power means passes. CONSTITUTION:The end section of a housing 8 which prevents the hot air of an engine 7 from infiltrating into a vehicle is communicated to a rear frame 3a. A cylindrical stanchion 10a supporting a roof 12 and the rear frame 3a are communicated to each other. Therefore, the hot air in the housing 8 is lifted through the space section of the rear frame 3a, stanchion 10a and roof 12 and is discharged through a discharge hole 12a. When the vehicle is moved, cold air enters the housing 8, and the outflow of the hot air is further expedited. Accordingly, the engine 7 and housing 8 can be prevented from being overheated without impairing the appearance of the vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heat exhaust structure for an automobile that discharges heat from an engine housing chamber of an automobile.

[Prior Art] Conventionally, cars such as golf cars and leisure cars have been easily equipped, have no roof, have a power means such as an air-cooled engine or an electric motor mounted under the seat, and have a storage room surrounding it. Lightly equipped automobiles are known in which the power means is kept in constant operation during leisure activities such as golfing, and when necessary the power is transmitted to the drive shaft by depressing the power switching pedal to drive the vehicle. .

In this type of vehicle, when trying to exhaust the hot air inside the containment chamber that houses the power means to the outside, the hot air has no exhaust pressure, and it has to be stopped for a long time, and even when the vehicle is running, the hot air has no exhaust pressure. Because it is slow.

It is difficult to naturally discharge the fluid to a position lower than the power means. .

As mentioned above, as a means of naturally discharging the hot air in the power means housing chamber, it is possible to erect a discharge pipe leading to the power means housing chamber on the vehicle body and let it escape upward, but if the pipe is erected in an exposed state, The smart appearance of the product is damaged. Another possibility is to create a number of exhaust holes in the rear of the vehicle and allow the exhaust to be naturally discharged from these holes, but this would cause problems such as odor, noise, and lumps.

For these reasons, in the past, a method has been adopted in which the hot air is naturally released to the outside through the gap in the power means storage chamber.

[Problems to be Solved by the Invention] However, there is a problem in that the discharge is not smooth and tends to remain in the power means housing chamber, making the power means easy to overheat.

This invention was made to solve this problem, and improves the cooling state of the power means by quickly discharging the hot air in the power means housing chamber upwards within a range that does not impair the smart appearance of the automobile. The purpose of the present invention is to provide an automobile heat exhaust structure that is effective in preventing overheating.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the heat exhaust structure for an automobile according to the present invention includes at least one of the plurality of supports that support the roof covering the upper part of the car body on the car body. .

The heat exhaust pipe is configured such that its lower end communicates with the power means housing chamber of the vehicle body, and its upper end communicates with a heat exhaust hole provided in the upper part of the roof.

[Function] Hot air in the power means storage chamber is naturally exhausted upward through a heat exhaust pipe that serves as a rear support installed at the rear of the vehicle body, and instead, cold outside air is drawn into the storage chamber from below the open power means. enters and acts to cool the power means. When the car moves, cold air with dynamic pressure enters the containment chamber, further intensifying the action.

Additionally, since the rear strut also serves as a heat exhaust pipe, it does not harm the overall smartness of the vehicle body compared to a separate heat exhaust pipe.

[Embodiment] Fig. 1 is a longitudinal sectional side view of the main parts of an automobile 1 to which the present invention is applied, and Fig. 2 is a perspective view of the same as seen from the rear side.

The car 1 illustrated here is used for golf and other leisure activities, and has front wheels (driven wheels) on both the left and right sides.
A vehicle body 3 is mounted on a chassis frame 2 on which a rear wheel (drive shaft) 4 and a rear wheel (drive shaft) 5 are pivotally supported.
is installed.

At the rear of the chassis frame 2 and at the rear lower part of the vehicle body 3,
An electric motor and an engine 7 are installed as power means for supplying driving force to the rear wheels 5 when a switching pedal 6 at the front lower part of the vehicle body 3 is depressed.

A storage chamber 8 is provided above the engine 7 and at the lower rear of the vehicle body 3 to surround the engine 7 from above and prevent hot air from the engine 7 from entering the vehicle interior. The left end of a portion 8a of this storage chamber 8 located within the rear frame 3a of the vehicle body 3 is open and communicates with the inside of the rear frame 3a, so that the hot air in the storage chamber 8 naturally flows into the rear frame 3a. It is now possible to enter.

Further, on the left and right portions of the front and rear portions of the vehicle body 3, support columns 10a, 10b, and 10c are provided to support the roof 12.

10d (Fig. 2) is erected. Among these columns, the rear columns 10a and 10b are cylindrical.

The lower ends of each are fitted and fixed into the left and right openings of the rear frame 3a of the vehicle body 3. These pillars 10a
, 10b and the inside of the rear frame 3a of the vehicle body 3 are in communication with each other, so that the hot air that has entered the rear frame 3a as described above rises and naturally enters the left column 10a.

Further, at the upper ends of the pillars 10a and 10b.

The hollow plate-shaped roof 12 has left and right leg portions 12b,
L2c is fitted onto the upper ends of the struts 10a, 10b and is welded and fixed onto the upper ends of the rear struts 10a, 10b. This roof 12 and the pillars 10a, 10b communicate with each other via the leg portions 12b, 12C, and the hot air that has entered the left pillar 10a as described above naturally rises inside the roof 12. It is designed to be inserted.

This roof 12 is arranged approximately horizontally, and the left support 1 on the rear upper wall of the roof 12 is approximately horizontal.
A heat exhaust hole 12a is provided directly above the upper end of 0a, so that the hot air that has risen toward the roof 12 as described above can naturally exit above the roof 12 through the heat exhaust hole 12. It has become.

Since the structure is as described above, the hot air inside the accommodation chamber 8 is light in nature, so that
and the space in the roof 12 in order and rise, and the roof 1
It is naturally discharged upward from the second discharge hole 12a. And if car 1 moves.

Cold air with dynamic pressure enters the accommodation chamber 8 and pushes the hot air in the accommodation chamber 8 toward the heat exhaust hole 12a, so that hot air flows out from the heat exhaust hole 12a more smoothly.

Rainwater on the upper side of the roof 12 is drained from the heat exhaust hole 12a to the vehicle body 3.
It also serves as a drainage hole for discharging water downward from the vehicle body 3, and rainwater is discharged downward from the vehicle body 3 through a path opposite to that of the hot air.

By the way, on the rear side of the vehicle body 3 is the support column 10a.

A U-shaped reinforcing frame pipe 9 for reinforcing the support of the roof 12 by the roof 12 is erected in an arch shape. Both ends of the frame pipe 9 are fixed on the left and right sides of the rear part of the chassis frame 2, the left and right vertical parts 9a and 9b are located within the left and right supports 10a and 10b, respectively, and the upper horizontal part 9c is located on the roof 12. The roof 12 is supported by its horizontal portion 9c, which is exposed through the inner walls of the leg portions 12b and 12c.

In the above embodiment, only the structure in which the hot air in the storage chamber 8 is discharged above the roof 12 via the left rear column 10a will be described, and the structure in which the hot air is discharged via the right rear column LOb will be explained. Since it can be easily inferred from the above embodiment, it also includes a case where discharge is performed via the right rear column 10b and a case where discharge is carried out via the columns 10a and 10b on both the left and right sides, although this has not been described. In addition, if the engine 7 is located at the front side of the vehicle body 3, the same pillars as those in the above embodiment are erected on both sides of the front part of the vehicle body 3, and the heat exhaust holes of the roof 12 are similarly communicated via the pillars. Hot air can also be released from 12a.

[Effects of the Invention] As described above, the automobile heat exhaust structure according to the present invention supports the roof covering the upper part of the vehicle body by a plurality of pillars erected at the front and rear parts of the vehicle body. At least one of them is a heat exhaust pipe through which the hot air from the housing chamber of the driving means passes, allowing the hot air in the housing chamber to naturally escape upward from the heat exhaust hole in the roof through the heat exhaust pipe, which improves the appearance of the car. The hot air inside the containment chamber is smoothly exhausted without loss of heat, and instead of the exhausted hot air, the cool air entering the containment chamber from below the power means effectively cools the power means. It satisfies the requirement of maintaining a sleek appearance and provides an expensive measure against overheating of the power means.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view of a main part of an automobile to which the present invention is applied, and FIG. 2 is a partial rear view thereof. FIG. 3 is a sectional view taken along the line ■--■ in FIG. 2. 1...Automobile, 3...Vehicle body, 7...Engine (power means), 8----Accommodation chamber, 10a+ iob
.

Claims (2)

[Claims] (1) A storage chamber for accommodating the power means is provided in the vehicle body with the power means at the lower part, while the upper part of the vehicle body is supported by a roof supported by a plurality of pillars erected at the front and rear of the vehicle body. covered, and at least one of the plurality of pillars is a heat exhaust pipe whose lower end communicates with the storage chamber and whose upper end communicates with a heat exhaust hole provided in the upper part of the roof. The heat exhaust structure of an automobile. (2) The power means and the accommodation chamber are located at the rear lower part of the vehicle body, and one of the pillars on the rear side of the vehicle body is a heat exhaust pipe. Automobile heat exhaust structure.