JPH0127930Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an air conditioner system applied to a cab-over type vehicle in which an engine is disposed below a seat in a cabin.

[Conventional technology]

When installing an air conditioner system that includes a car cooler and a car heater in a cab-over type vehicle in which the engine is located below the seat in the cabin, the evaporator in the car cooler and the heater case containing the car heater core are It was generally placed below the passenger seat and in front of the front passenger seat.

[Problem that the invention attempts to solve]

However, in this way, both the evaporator in the car cooler and the heater case containing the car heater core are installed below the instrument panel.
In addition, it can be placed in front of the passenger seat.
There is a problem that reduces the space in front of the passenger seat, and the heater case needs an intake port for outside air, and the evaporator cover needs an intake port for inside air, so we decided to install them in one place. However, there were problems in that the structure would be complicated and the switching mechanism would be large.

The present invention solves the above-mentioned problems when installing an air conditioning system having a car cooler and a car heater in a cab-over type vehicle.

[Means for solving problems]

To achieve this objective, the present invention provides an air conditioner device comprising an evaporator for a car cooler and a heater case incorporating a core for the car heater, in which the evaporator is used as a driver's seat and a passenger seat in a cab-over type vehicle. A cover that covers the evaporator is provided with an inlet for in-vehicle air; The heater case is disposed in a high part, and an inlet for outside air and an inlet duct for inlet air from the evaporator cover are opened at the lower end of the heater case, and an inside of the lower end of the heater case is opened. An inside/outside air switching damper is provided for selectively switching between the outside air inlet and the inside air inlet duct, and a blower fan is provided at the upper end of the heater case to send wind into the inside of the car. I made it.

[Effect]

In such a configuration, when the inside/outside wind switching damper is operated to close the outside air inlet, the air inside the car flows into the cover that covers the evaporator from the inlet, passes through the evaporator, and then through the car heater core. After that, the air blowing fan blows out the hot water into the car again. In this case, if you shut off the hot water to the car heater, stop the car heater, and start the car cooler, the car interior will be cooled, and the car will be cooled. When the hot water supply is opened, the inside of the car is heated, but when the inside/outside airflow switching damper is operated to close the inside air intake duct, fresh outside air is introduced into the inside of the car, and when the car heater is started at this time, fresh air is heated. For example, outside air can be heated by the car heater and then introduced into the car, allowing for various uses by operating a single damper for switching between inside and outside air.

In addition, by placing the evaporator for the car cooler between the driver's seat and the passenger seat, the space in front of the passenger seat is no longer reduced due to the installation of the evaporator for the car cooler. Furthermore, by locating the heater case higher than the evaporator, a space for stretching one's legs can be created in front of the lower part of the passenger seat.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 indicates a cab-over type automobile having a cabin 3 at the front part of a body frame 2 and a loading platform 4 at the rear part, and inside the cabin 3,
It includes a driver seat 4 and a passenger seat 5, an instrument panel 6 is provided in front of these seats, and an engine 7 is provided at the bottom near the boundary between the cabin 3 and the cargo platform 4.

Further, the instrument panel 6 is provided with air blow-off ports 8 into the vehicle interior on both the left and right sides thereof, and a plurality of defroster nozzle holes 10 for the windshield 9 on the top surface.

In the cabin 3, an evaporator 11 for a car cooler is disposed on the floor between the driver seat 4 and the passenger seat 5, and a cover 1 covering the evaporator 11 is provided.
A suction port 13 for in-vehicle air is provided on the rear surface of the vehicle.

On the other hand, below the instrument panel 6 and above the evaporator 11, a heater case 15 containing a core 14 for a car heater is disposed. The introduction port 16 is opened, and an introduction duct 17 from the front surface of the cover 12 covering the evaporator 11 is connected.

Further, inside the lower end of the heater case 15, an inside/outside air switching damper 18 is provided for selectively switching between the outside air inlet 16 and the inside air inlet duct 17.

And, at the upper end of the heater case 15,
A blower fan 20 of the Shirotsuko type or the like driven by a motor 19 is provided so that the suction side of the blower fan 20 looks into the heater case 15, and the discharge air path 21 of the blower fan 20 is connected to the instrument panel 6. An air passage 22 leading to each air outlet 8 at the front of the instrument panel 6, and an air passage 2 leading to an air outlet 23 at the bottom of the instrument panel 6 toward the feet.
4, and at the branch point there is a discharge air path 21.
A damper 25 is provided for selectively switching the flow to either the air path 22 or the air path 24.

In the air passage 24 to the underfoot air blowing holes 23, air from the blowing fan 20 is blown out from the underfoot air blowing holes 23, and air is blown out from the underfoot air blowing holes 23 through the defroster duct 26 to each of the defroster nozzle holes 10.
A damper 27 is provided for selectively switching between cases where the air is ejected from the air and the air is ejected from the air.

In this configuration, the inside/outside wind switching damper 18
When the outside air inlet 16 is closed as shown by the two-dot chain line in FIG. Next is car heater core 14
After passing through the air, the hot water is sucked into the blower fan 20, and then it is circulated again to be ejected into the car from each air outlet 8, the foot air outlet 23, or each defroster nozzle hole 10. In this case, hot water is supplied to the car heater. When the supply valve 28 is closed to stop the car heater and at the same time start the car cooler, the inside of the car is cooled, and at the same time when the car cooler is stopped,
When the hot water supply valve 28 to the car heater is opened, the interior of the car is heated.

Further, the inside/outside wind switching damper 18 is
As shown by the solid line in the figure, the in-vehicle wind introduction duct 17
When the is operated to close, fresh outside air from outside the vehicle is sucked into the heater case 15 from the outside air inlet 16, and this fresh outside air is supplied to each air outlet 8, the foot air outlet 23, or each defroster nozzle. The hot air is blown into the car from the hole 10, and when the car heater is started at this time, so-called fresh warm air can be blown out which can be introduced into the car after the fresh outside air is warmed by the car heater.

[Effect of idea]

As described above, according to the present invention, by operating the one internal/external air switching damper provided inside the lower end of the heater case, the circulation of air inside the car passing through the car cooler or car heater and the introduction of outside air can be arbitrarily controlled. Since it can be switched, the structure becomes simple.Moreover, by providing this internal/external air switching damper inside the lower end of the heater case, the internal/external air switching damper is built into the heater case. Coupled with the fact that there is only one damper for switching between the inside and outside air, the structure can be simplified and the size can be reduced.

Furthermore, according to the present invention, the evaporator for the car cooler is placed between the driver's seat and the passenger seat, so the space in front of the passenger seat is reduced compared to the conventional space for installing the evaporator for the car cooler. In addition, the heater case can be
Being located higher than the evaporator has the effect of creating a space in front of the lower part of the passenger seat to stretch your legs.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of a cab-over type automobile, Fig. 2 is a perspective view of the inside of the cabin of the cab-over type automobile, and Fig. 3 is an enlarged cross-sectional view taken from - in Fig. 2. . DESCRIPTION OF SYMBOLS 1...cab-over type automobile, 3...cabin, 4...driver seat, 5...passenger seat, 6...instrument panel, 11...evaporator, 12...
...Cover, 13...Car interior air inlet, 14...
Car heater core, 15... Heater case, 1
6...Introduction port for outside air, 17...Introduction duct for inside air, 18...Inside/outside wind switching damper, 20...
...Blower fan.

Claims (1)

[Scope of utility model registration request] In an air conditioner device comprising an evaporator for a car cooler and a heater case incorporating a core for the car heater, the evaporator is disposed at a location between a driver seat and a passenger seat in a cab-over type vehicle, A cover for covering the evaporator is provided with an intake port for in-vehicle air, and the heater case is provided below the instrument panel located in front of the driver's seat and passenger seat and at a location higher than the evaporator. An inlet for outside air and an inlet duct for inlet air from the evaporator cover are opened at the lower end of the heater case, and an inlet for inlet for outside air and an inlet duct for inlet air from the evaporator cover are opened at the lower end of the heater case. An air conditioner for a cab-over type vehicle, characterized in that an air conditioner is provided for selectively switching between an air introduction duct and an inside/outside air switching damper, and further, a blower fan is provided at the upper end of the heater case for sending air into the vehicle interior. dayner device.