JPH10264852A - Hot air exhausting structure of condenser for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exhaust the hot air of a condenser of an air conditioner of a cab over type vehicle efficiently. SOLUTION: In a space 7 which is positioned at the outer side of the front part of the front side frame 5 of an under carriage, and surrounded by the back side 41 of the step 4 of a cab C to form the side surface; the front end 61 of a wheel house 6 to form the rear surface; and the bottom surface of the cab C to form the upper surface; a condenser 1 is set, and its hot air exhaust side is set providing vertical toward the corner part 71 of the space 7 where the rear part vertical edge 42 and the outer side vertical edge 62 of the wheel house 6 are connected, so as to provide the structure to exhaust the hot air from the condenser 1 to the lower side of the space 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot air discharge structure of a cooler condenser disposed in front of an engine located below a cab in a cab-over type vehicle.

[0002]

2. Description of the Related Art As shown in FIG. 5, in a cab-over type vehicle, an engine room E is formed below a cab C, and an engine 2 is installed between left and right front side frames 5 constituting a chassis. . A radiator 3 is provided upright in front of the engine 2, and a cooler condenser 1 is further provided horizontally in front of the engine 2 so as not to block the flow of air to the radiator 3. The cooler condenser 1 is an electric fan 1 for introducing air into the upper part thereof.
1, and an under cover 12 for preventing damage due to flying stones or the like is provided below. Under cover 1
2, a slit 13 for discharging hot air from the cooler condenser 1 is formed. In FIG. 5A, reference numeral 4 denotes a step for getting on and off provided below the front end of the side surface of the cab C;
Reference numeral 6 denotes a wheel house fixed to the left and right front side frames 5, respectively. Reference numeral 9 denotes a front cross frame extending between the front ends of both front side frames 5.

When the vehicle is running, as shown in FIG. 5 (B), air (white arrow) is taken into the engine room E from the grill G on the front of the cab C, and a part thereof is sucked by the fan 31 behind the radiator 3. Through the radiator 3 to cool it. A part of the air is supplied to the electric fan 1.
At 1, heat is exchanged with the refrigerant gas flowing into the cooler condenser 1 and flowing through the cooler condenser 1, and the heat is cooled. Due to the heat exchange, the air becomes hot air (black arrow) and is discharged downward from the slit 13 of the undercover 12.

However, in the above-mentioned conventional structure, a part of the hot air from the cooler condenser 1 discharged from the slit 13 is sucked into the radiator 3, and as a result, the cooling effect of the radiator 3 is reduced. is there. Therefore, as a means for preventing the cooling effect of the radiator 3 from being lowered, an air duct 14 extending in the vehicle width direction is provided below the cooler condenser 1 as shown in FIG. If the opening 15 is configured to extend further than the cooler condenser 1, the hot air discharged through the air duct 14 can be prevented from being sucked into the radiator 3. However, the cooler condenser 1 must be provided with a fairly large air duct 14 dedicated to discharging hot air.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a cooler capable of discharging hot air efficiently and without deteriorating the cooling effect of the radiator without providing a cooler condenser with a member dedicated to discharging hot air. The object of the present invention is to realize a structure for discharging hot air from a capacitor.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a cooler condenser installed in an engine room of a cab-over type vehicle, which is located outside a front portion of a front side frame of a chassis and has a rear portion of a step of a cab forming a side surface. When,
A cooler condenser is installed in the space surrounded by the front end of the wheel house that forms the rear surface, and the bottom of the cab that forms the upper surface, and the hot air discharge side is defined as the rear vertical edge of the rear part of the above step. The hot air discharged from the cooler condenser is disposed below the space, and is disposed toward a corner of the space connected to the outer longitudinal edge of the front end of the wheel house. . The hot air discharge port of the cooler condenser is formed by using the existing structure of the vehicle without providing a dedicated member for discharging the hot air in the cooler condenser.

In the case of a tilt-type cab-over type vehicle, the rear vertical edge of the cab step and the outer vertical edge of the front end of the wheel house fixed to the front side frame are separated from each other. Therefore, the rear vertical edge is formed with a flange that projects in the outer vertical edge direction, while the outer vertical edge is provided with a rubber elastic seal lip that projects in the front direction of the flange and overlaps the flange.
The corner is sealed (claim 2). The hot air outlet of the cooler condenser is formed by using the existing structure and making a slight modification thereto.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a tilt-type cab-over type vehicle will be described with reference to FIGS. As shown in FIG. 1, a cab C is installed above the left and right front side frames 5 constituting the chassis. A bracket 51 projecting upward is provided at the front end of both front side frames 5, while a bracket (not shown) projecting downward is provided at a position corresponding to the bracket 51 at the front end of the bottom of the cab C. The cab C can be tilted forward by pivoting the bracket to the bracket 51. In the drawings, reference numeral 9 denotes a front cross frame provided between the front ends of the front side frames 5.

An engine room E formed below the cab C has an engine 2 between both front side frames 5.
Is installed, and a radiator 3 having a fan 31 is installed in front of it. The rear part of the bottom of the cab C is located higher than the front, avoiding the engine 2.

A wheel house 6 is fixed outside the left and right front side frames 5. Wheel house 6
Has a substantially vertical surface. The width of the cab C that covers the front side frame 5 and the wheel house 6 is set to a width that slightly projects outside the wheel house 6. Steps 4 for getting on and off are provided below the front ends of the left and right side surfaces of the cab C. The step 4 has a substantially U-shaped horizontal section, and has a step plate at the lower end. A rear vertical edge 42 of the rear portion 41 on the vehicle rear side has an outer vertical edge 62 of a front end 61 of the wheel house 6 with a slight gap.
And is facing. Then both front side frames 5
Outside the front end of the wheel house 6 forming the rear surface
Front part 61 and the back part 4 of step 4 forming the side surface
A space portion 7 is formed which is surrounded by the cab C and the bottom surface portion (not shown) of the cab C forming the upper surface.

As shown in FIGS. 1, 2, and 3, the outer vertical edge 62 of the front end 61 of the wheel house 6 and the rear vertical edge 42 of the rear portion 41 of the step 4 are opposed to each other in the space 7 described above. At the corner 71, the rear vertical edge 4 of the step 4
2, a flange 43 projecting toward the outer vertical edge 62 of the wheel house 6 is formed. On the other hand, wheel house 6
A seal lip 8 is attached along the outer longitudinal edge 62 of the front end portion 61 with a screw or the like. Seal lip 8
Is made of rubber or synthetic resin having rubber elasticity, and protrudes so as to overlap the front side of the flange 43.

In the space 7 formed outside the front ends of the left and right front side frames 5, a cooler condenser 1 having a fan 11 in one of them is installed. The cooler condenser 1 is supported by a stay (not shown) provided on the front side frame 5.
The cooler condenser 1 is placed vertically, the fan 11 side is directed forward, and the hot air discharge side is the corner 71 of the space 7.
It is arranged toward.

In the tilt type cab-over type vehicle provided with the cooler condenser 1, at the time of tilting, the step 4 tilts integrally with the cab C, and the flange 43 of the step 4
, And returns to a position covering the front surface of the seal lip 8 again (FIG. 4). During operation of the engine, part of the air taken into the engine room E is sucked by the fan 31 of the radiator 3 and passes through the radiator 3 to cool it. A part of the air is sucked by the fan 11 of the cooler condenser 1, passes through the cooler condenser 1 and exchanges heat, and hot air (black arrow) is blown out toward the corner 71 of the space 7 (FIG. 1). , FIG. 2), and is discharged below the space 7 along the wall surface of the space 7 centered on the corner 71 (FIG. 3).

At this time, since the seal lip 8 is pressed against the flange 43 of the step 4 by the wind pressure of the hot air, the seal lip 8 is in close contact with the flange 43, and the corner 71 is sealed so that no hot air leaks from the corner 71 to the outside. . Further, since the cooler condenser 1 is installed at a position shifted from the front of the radiator 3 to the outside of the vehicle, the hot air discharged from the cooler condenser 1 is hardly sucked into the radiator 3 and the cooling action of the radiator 3 is performed. Does not inhibit. Further, since the lower part of the space 7 is open, hot air does not stay in the space 7 and the cooling effect of the cooler condenser 1 does not decrease. Furthermore, since the hot air that has flowed out from below the space 7 is mainly discharged to the rear side, the hot air is hardly blown to the feet of the passenger.

In a non-tilt cab-over type vehicle, the rear vertical edge of the rear portion of the step of the cab and the outer vertical edge of the front end of the wheel house are generally joined by bolting or welding. The space can be used as it is as the hot air outlet of the cooler condenser.

[0016]

According to the present invention, the cooler condenser is not provided with a dedicated member for discharging hot air, the hot air is efficiently used by using the original structure of the vehicle, and the hot air is not reduced without lowering the cooling effect of the radiator. Can be discharged.

[Brief description of the drawings]

FIG. 1A is a plan view of an engine room of a tilt-type cab-over type vehicle to which a hot air discharge structure of a cooler condenser according to the present invention is applied, and FIG. 1B is a perspective view thereof.

FIG. 2 is a main part horizontal sectional view showing a hot air discharging structure of the cooler condenser of the present invention.

FIG. 3 is a perspective view of a main part showing a hot air discharging structure of the cooler condenser of the present invention.

FIG. 4 is a perspective view showing a hot air discharging structure of the cooler condenser of the present invention, in which a step is turned upward along with a cab tilting operation.

FIG. 5 (A) is a plan view of an engine room of a cab-over type vehicle provided with a conventional cooler condenser, and FIG.
(B) is a side view thereof.

FIG. 6 is a perspective view showing a reference example of a hot air discharging structure of a cooler condenser.

[Explanation of symbols]

 C Cab E Engine room 1 Cooler condenser 4 Step 41 Back part 42 Rear vertical edge 43 Flange 5 Front side frame 6 Wheel house 61 Front end 62 Outer vertical edge 7 Space 71 Corner 8 Seal lip

Claims (2)

[Claims] In a cooler condenser installed in an engine room of a cab-over type vehicle, a rear part of a step of a cab forming a side surface and a wheel house forming a rear surface are located outside a front part of a front side frame of a chassis. A cooler condenser is installed in a space surrounded by the front end of the cab and the bottom part of the cab forming the upper surface, and the cooler condenser is arranged such that its hot air discharge side is the rear vertical edge of the step and that of the wheel house. A hot air discharge structure for a cooler condenser, which is arranged toward a corner of the space connected to the outer vertical edge of the front end and discharges hot air discharged from the cooler condenser below the space. 2. The cab-over type vehicle is of a tilt type, wherein a rear vertical edge of a cab step and an outer vertical edge of a front end of the wheel house fixed to a front side frame are separated from each other, and the rear vertical On the edge, a flange projecting in the direction of the outer longitudinal edge is formed, and on the outer longitudinal edge, a sealing lip of a rubber elastic body projecting in the front direction of the flange and overlapping with the flange is attached to seal the corner portion. A hot air discharge structure for a cooler condenser according to claim 1.