JPH03279018A - Cooling air introduction device for vehicle - Google Patents

Abstract

PURPOSE:To improve cooling efficiency by applying the constitution wherein a cooling air guide device is installed at the front side of a body, comprising a duct block having a front end for fitting a licence plate, and the rear portion of the license plate fitting end shrinked toward the rear side of the body in an approximately triangular form, and a wall at the outside of the duct block as a cooling air passage. CONSTITUTION:A cooling air guide device 10 is constituted with a duct block 8 of approximately triangular form having the upper apex thereof positioned at a rear side and the front end as the fitting surface 7 of a license plate 3 respectively viewed from top, and an air duct 9 having a wall outside the block B. The device 10 so constituted is positioned at the front side of a vehicle. The front opening 11 of the aforesaid air duct 9 is so formed as to be larger than the rear opening 12, and gradually shrinked toward the rear side of the body. According to the aforesaid construction, an intake cooling air flow is smoothed and efficiently introduced to a cooling section, thereby enabling efficient cooling.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cooling air introduction device that is disposed at a cooling air intake in the front of a vehicle body and rectifies cooling air.

(Prior Art) A cooling air intake for cooling a radiator and the like disposed in an engine compartment is provided at the front of a vehicle body. However, recently, in order to improve the appearance of the car body, the first
As shown in Figure θ, the cooling air intake l is installed on the lower side of the front of the vehicle body 2, and the license plate 3 is often attached to the front of the cooling air intake l (see Fig. 10). However, when the license plate 3 is installed in front of the cooling air intake port 1, the cooling air 4 becomes turbulent behind the license plate 3 (see Figure 11), and there is a problem in that the energy of the flow of the cooling air 4 is lost. The reference numeral 5 in the figure is a radiator.

Therefore, in order to solve this problem, a wind guide plate for rectifying the cooling air was installed at a position slightly away from the lower and upper ends of the license plate. (see Japanese Utility Model Application Publication No. 133-143422), there was also one in which an air duct was connected to the rear of the cooling air intake for the purpose of rectification.

(Problem to be Solved by the Invention) However, the license plate disclosed in Japanese Utility Model Application Publication No. 83-14427 in which a wind guide plate for rectification is installed at a position slightly apart from the lower and upper ends of the license plate, and the The one disclosed in Publication No. 63-143422 in which an air duct is connected to the rear of the cooling air intake for the purpose of rectification,
There was a problem in that the wind guide plates and air ducts had to be designed and installed on the vehicle body from the beginning, reducing work efficiency during manufacturing. Furthermore, if the heat-generating part of the engine compartment is installed offset from the cooling air intake, there is also the problem that the heat-generating part cannot be efficiently cooled.

The present invention was made to solve the above-mentioned problems, and a duct equipped with a license plate is provided in the cooling air intake at the front of the vehicle body, thereby rectifying the cooling air and efficiently cooling the heat-generating parts. An object of the present invention is to provide a cooling air introduction device for a vehicle.

(Means for Solving the Problems) As a means for solving the above problems, the present invention provides a mounting surface 7 of a license plate 3 with a front surface formed in a substantially triangular shape as shown in FIG. A deflated duct block 8 is provided, and a wall (air duct 9) is provided on the outside of the duct block 8 to form a cooling air guide device 10. The structure is such that it is mounted so that it faces the front. Furthermore, it is effective to make the rear opening area of the air passage formed between the duct block 8 and the wall (air duct 9) the same on both the left and right sides of the duct block 8. Then, the rear opening area of the air passage formed between the duct block 8 and l11 (air duct 9) is made different for the left and right sides of the duct block 8, and the opening is made to correspond to the side that generates more heat in the vehicle body 2. It is better to face the side with a larger area, and it is better to make the planar shape of the duct block 8 asymmetrical in order to change the rear opening area of the air passage formed between the duct block 8 and the wall (air duct 9). In order to change the rear opening area of the air passage formed between the duct block 8 and the wall (air duct 9), the planar shape of the walls (air duct 9) provided on both sides of the duct block 8 may be made asymmetrical. . Further, in order to change the rear opening area of the air passage formed between the duct block 8 and the wall (air duct 9), a rotatable wind guide plate 15 may be provided on the duct block 8 or the wall (air duct 9).

(Function) As described above, the cooling air guide device 6 equipped with the duct block 8 whose front surface is the mounting surface 7 of the license plate 3 is disposed in the cooling air intake port l at the front of the vehicle body 2. If configured as such, the cooling air 4 introduced into the vehicle body 2 will be rectified by the cooling air guide device 6, and turbulence of the cooling air 4 will be avoided. If the rear opening area of the air passage formed between the duct block 8 and the wall (air duct 9) is the same for both left and right sides of the duct block 8, the cooling air 4
tends to flow straight backwards. Furthermore, if the rear opening areas are made different for the left and right sides of the duct block 8, the blowing direction of the cooling air 4 will change. If so, that area can be cooled intensively. Therefore, even if the heat generating portion is shifted from the cooling air intake port 1, it can be efficiently cooled. In order to change the rear opening area of the air passage formed between the duct block 8 and the wall (air duct 9), the planar shape of the duct block 8 can be made asymmetrical and placed inside the wall (air duct 9) for cooling. The flow of the wind 4 is changed by this duct block 8.

Also, in order to change the rear opening area of the air passage formed between the duct block 8 and the wall (air duct 9), the planar shape of the walls (air duct 9) provided on both sides of the duct block 8 can be made asymmetrical. The flow of the cooling air 4 can also be changed by the shape of this wall (air duct 9).

Furthermore, to change the rear opening area of the air passage formed between the duct block 8 and the wall (air duct 9), a rotatable wind guide plate 15 may be attached to the duct block 8 or the wall (air duct 9). By doing so, the rear opening area of the air passage can be changed by the inclination of the wind guide plate 15.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 3, in which the same parts as in FIG. 1O are given the same reference numerals.

In these figures, what is indicated by the reference numeral 6 is a cooling air introduction device for a vehicle according to the present invention.

The cooling air introduction device 6 is formed by providing an air duct 9, which is a wall, on the outside of a duct block 8 (see also Fig. 4) whose front face is formed on the mounting surface 7 of the license plate 3 and whose rear part is contracted into an approximately triangular shape. A cooling air guide device 1O is attached to a cooling air intake port 1 at the front of a vehicle body 2 with a license plate 3 facing the front.

Next, the cooling air guide device 10 constituting the cooling air introduction device 6 will be described in detail based on FIGS. 4 and 5. The cooling air guide device 10 is generally composed of a duct block 8 having the mounting surface 7 of the license plate 3 formed on the front surface, and an air duct 9 which is a wall provided on the outside of the duct block 8. The air duct 9 has a horizontally elongated shape when viewed from the front, and openings 11 and 12 are formed at both ends in the axial direction.

Of these openings 11, 12, the opening 11 on the front side of the vehicle body 2 is formed wider than the opening 12 on the rear side. In other words, the inside of the air duct 9 is formed to gradually narrow from the opening 11 on the front side to the opening 12 on the rear side, and has a shape that rectifies the flow of the cooling air 4 around the air duct 9. It has become. Further, the lower surface 8a of the air duct 9 is also shaped to rectify the cooling air 4 (see FIG. 5).

The duct block 8 is a removable unit that rectifies the cooling air 4 and changes its blowing direction, and one end, that is, the front, is formed to be wide in the lateral direction, and the width in the lateral direction decreases as it goes from the front to the other end, that is, the rear. Since the heat generating portion of the duct block 8 of this embodiment is provided directly behind the cooling air intake port 1, its shape is approximately triangular in plan view.

The wide side portion of the duct block 8 is disposed at the center of the air duct 9 facing forward of the vehicle body 2.

If the duct block 8 is arranged inside the air duct 9 in this way, the cooling air passage inside the air duct 9 will be formed on both sides of the inside of the air duct 9 on the front side of the vehicle body 2, and the cooling air passage will be formed on both sides of the inside of the air duct 9 on the front side of the vehicle body 2. They are formed to merge on the sides.

Therefore, the cooling air 4 is introduced into the air duct 9 from the openings 11 on both sides at the front end of the air duct 9, and is introduced into the air duct 9 through the opening 1 at the rear end.
The two will become one and blow out. In this way, if the duct block 8 is made approximately triangular in shape and placed in the center of the air duct 9, the rear opening area of the air passage formed between the duct block 8 and the wall, that is, the duct block 8 and the air duct 9, will be the same as that of the duct block 8. The left and right sides of are the same. The license plate 3 is screwed and fixed to a mounting surface 7 formed on the front surface of the duct block 8.

If the cooling air guide device 10 equipped with the license plate 3 configured as described above is provided at the cooling air intake l on the front of the vehicle body 2 to form the cooling air introduction device 6, the cooling air 4 introduced into the vehicle body 2 will be As shown in FIGS. 6 and 7, this device 10
turbulence is avoided by rectifying the flow. Further, since the duct block 8 has a substantially triangular shape, heat-generating portions such as the radiator 5 located directly behind the cooling air intake port 1 are also intensively cooled. Furthermore, since a mounting surface 7 for the license plate 3 is provided at the front end of the duct block 8, if the license plate 3 is mounted in this position, the license plate 3 will be placed in the cooling air intake port l at the front of the vehicle body 2. This makes it possible to maintain a good external appearance.

In this embodiment, the shape of the duct block 8 is symmetrical in the longitudinal direction of the vehicle body 2, that is, the shape of the duct block 8 is approximately triangular when viewed from above, and is disposed in the center of the air duct 9. However, the duct block 8 is not shaped like this, but the duct block 8 is shaped as shown in FIG.
By forming the planar shape to be asymmetrical, the rear opening area of the air passage formed between the duct block 8 and the air duct 9 can be changed on both left and right sides of the duct block 8, and this rear opening area can be changed. The larger one is body 2
If the heat-generating portions are placed in correspondence with the one generating a large amount of heat, for example, the overlapping portion of the radiator 5 and the air conditioner condenser 12 can be intensively cooled. Note that when the rear opening area of the air passage formed between the duct block 8 and the air duct 9 is made different on both the left and right sides of the duct block 8, the planar shape of the walls provided on both sides of the duct block 8 may be made asymmetrical. In the figure, 13 indicates an engine, and 14 indicates a transmission.

Furthermore, as shown in FIG. 9, if a rectifier plate 15 is attached to the opening 12 on the rear end side of the air duct 9, that is, to the cooling air outlet, this will also allow the duct block 8 and the air duct 9 to
The rear opening area of the air passage formed between the two can be changed. This current plate 15 can change the blowing of cooling air in the vertical direction. Also, the current plate 15
The same applies even if it is attached to the duct block 8 side.

(Effects of the Invention) As explained above, the present invention provides a duct block whose front face is formed on the mounting surface of the license plate and whose rear part is contracted into an approximately triangular shape, and a wall is provided on the outside of the duct block to guide cooling air. Since the cooling air guide device is attached to the front of the vehicle body with the license plate facing the front, the energy of the cooling air flow is not lost and the cooling efficiency is improved. Furthermore, by attaching the license plate to this duct block, it becomes possible to attach the license plate to the cooling air intake in the front of the vehicle body, improving the appearance of the vehicle body.

By making the rear opening area of the air passage formed between the duct block and the wall the same on both the left and right sides of the duct block, the blowing direction of the cooling air blown out from the rear opening of the cooling air guide device is correct. Immediately after that, the amount of air emitted is averaged. In addition, the rear opening area of the air passage formed between the duct block and the wall is made different for the left and right sides of the duct block, so that the side with the larger opening area faces the side that generates more heat inside the vehicle body. Therefore, the direction in which the cooling air is blown can be changed, and even if the heat-generating portion is located off-center from the cooling air intake, that portion can be intensively cooled. In order to change the rear opening area of the air passage formed between the duct block and the wall, the planar shape of the duct block is made asymmetrical, and the planar shape of the walls provided on both sides of the duct block is made symmetrical. Furthermore, since a rotatable wind guide plate is provided on the duct block or wall, the direction of the cooling air blown out from the rear opening of the cooling air guide device can be reliably changed, and the amount of air blown out can also be changed. It becomes possible to change. Furthermore, since this cooling air guide device can be manufactured separately from the design of the vehicle body, the degree of freedom in design is improved, and work efficiency during the manufacture of the vehicle body is improved. Furthermore, since this cooling air guide device can be formed separately from the vehicle body, it has the advantage that it can be appropriately installed on different vehicle types.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a perspective view of a cooling air guide device according to the present invention, and FIG. 3 is a perspective view showing how a license plate is attached to the cooling air guide device. Figure 4 is a sectional plan view of the one in Figure 2, and Figure 5 is a cross-sectional plan view of the one in Figure 2.
Cross-sectional side view along V-Vllll in the figure, Figures 6 and 7
The figure is a schematic diagram showing the flow of cooling air, FIG. 8 is a schematic diagram showing another example of the cooling air introduction device, FIG. 9 is a schematic diagram showing yet another example of the cooling air introduction device, and FIG. 10 is a schematic diagram showing another example of the cooling air introduction device. FIG. 11 is a perspective view showing the conventional mounting state of the license plate, and a schematic diagram showing the conventional flow of cooling air. 1... Cooling air intake 2... Vehicle body 3... License plate 4... Cooling air 6... Cooling air introduction device 7... Mounting surface 8... Duct block 9... Air duct 10... Cooling air guide device 1 Figure 2 Figure 4 Figure 8 Figure 10 Figure 11

Claims (6)

[Claims] (1) A duct block is provided whose front face is the mounting surface of the license plate and the rear part of the mounting surface is contracted into an approximately triangular shape, and a wall is provided on the outside of the duct block to form a cooling air guide device, and the cooling A cooling air introduction device for a vehicle, characterized in that a wind guide device is attached to the front of the vehicle body. (2) The cooling air introduction device for a vehicle according to claim 1, wherein the rear opening area of the air passage formed between the duct block and the wall is the same on both left and right sides of the duct block. (3) The rear opening area of the air passage formed between the duct block and the wall is made different for the left and right sides of the duct block. Claim 1 characterized by making it desired
Cooling air introduction device for the vehicle described. (4) Cooling air introduction for a vehicle according to claim 3, characterized in that the planar shape of the duct block is made asymmetrical in order to change the rear opening area of the air passage formed between the duct block and the wall. Device. (5) In order to change the rear opening area of the air passage formed between the duct block and the wall, the planar shape of the walls provided on both sides of the duct block is made asymmetrical. Cooling air introduction device for vehicles. (6) A rotatable wind guide plate is provided on the duct block or the wall to change the rear opening area of the air passage formed between the duct block and the wall. Vehicle cooling air introduction device.