JPH05254335A - Air conditioner for vehicle - Google Patents

Abstract

PURPOSE:To effectively employ the whole of a heat exchanger and to generate a cooling capability to its maximum in a set space by providing a ventilation hole on the surface of a stop plate connected to the upper surface of a cooler. CONSTITUTION:An air conditioner for a vehicle is provided with a cooler 5 provided in an inclined condition in an indoor machine chamber, heat-exchanging and passing an air forcibly supplied by an indoor air blower 8 and a stop plate 10 disposed between the upper part of the cooler 5 and an indoor machine chamber cover 6. The stop plate 10 has a ventilation hole 11 on a surface connected to the upper surface of the cooler 5. As a result, since an air flowing toward the stop plate 10 passes through this ventilation hole 11 and flows from the upper part of the cooler 5 with no dead space generated to the inner part thereof, substantially all the part of the air flowing through the indoor machine chamber completely undergoes heat-exchanging operation, so that a cooling efficiency in a vehicle is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner mounted on a roof of a vehicle to cool the inside of the vehicle.

[0002]

2. Description of the Related Art FIG. 5 is a plan view showing a conventional vehicle air conditioner disclosed in, for example, Japanese Unexamined Patent Publication (Kokai) No. 2-258411, and FIG. 6 is a partially cutaway front view showing the same. Reference numeral 1 is a vehicle air conditioner, 2 is an outdoor unit room, 3 is a compressor room for accommodating a compressor of a known refrigeration cycle, 4 is an indoor unit room, and 5 is a cooler that is obliquely attached to the indoor unit room 4. Is.

Further, 6 is an indoor unit room cover having a rounded shape and having a medium height, which is adapted to the roof shape of the vehicle body, 7 is a closing plate for closing a gap between the upper part of the cooler 5 and the indoor unit room cover 6, and 8 is The indoor blower 9 is a return port provided on the bottom surface of the indoor unit room 4.

Next, the operation will be described. First, by the operation of the indoor blower 8, the air inside the vehicle (not shown) is sucked through the return port 9 and enters the indoor unit room 4 of the vehicle air conditioner 1. As described above, since the gap between the upper part of the cooler 5 and the indoor unit room cover 6 is closed by the closing plate 7, all the air sucked from the return port 9 passes through the cooler 5. ..

Therefore, the air that has undergone heat exchange in the cooler 5 is sucked into the indoor blower 8 and blown out into the vehicle through the discharge port 15. The cooler 5 has a large heat exchange area in a space of a predetermined height, and is attached with an inclination as shown in the figure in order to increase heat exchange efficiency.

[0006]

Since the conventional vehicle air conditioner is constructed as described above, the inclined cooler 5 is used.
The upper portion A (triangular portion) of the is closed the air passage by the closing plate 7 and becomes a dead space. Since this portion is not used for heat exchange, sufficient heat exchange cannot be performed, and as a result, the cooling capacity is reduced. There was a problem such as not being able to raise sufficiently.

The present invention has been made in order to solve the above-mentioned problems, and by utilizing the heat exchange area of the cooler in the indoor unit room to the maximum without making a dead space, the cooling capacity can be improved. It is an object of the present invention to obtain a vehicle air conditioner capable of sufficiently improving the air conditioning.

[0008]

An air conditioner for a vehicle according to the present invention is provided with an indoor unit room installed on the roof of a vehicle body together with an outdoor unit room and a compressor room, and at an inclination in the indoor unit room. A cooling device that allows the air forcedly sent by the indoor blower to pass through by heat exchange, and a closing plate provided between the upper part of the cooling device and the indoor unit chamber cover, and the cooling of the closing plate. Ventilation holes are provided on the surface that is joined to the upper surface of the vessel.

[0009]

Since the obstruction plate according to the present invention is provided with the ventilation holes on the surface which is joined to the upper surface of the cooler, the air flowing toward the obstruction plate passes through the ventilation holes and the entire cooler in which no dead space is generated. Since the air flows from the upper part toward the inside, almost all of the air flowing in the indoor unit room is sufficiently heat-exchanged and functions to enhance the cooling efficiency inside the vehicle.

[0010]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. 1 and 2, 1 is a vehicle air conditioner,
Reference numeral 2 is an outdoor unit room, 3 is a compressor room for accommodating a compressor of a known refrigeration cycle, 4 is an indoor unit room, and 5 is a cooler attached to the indoor unit room 4 with an inclination.

Further, 6 is an indoor unit room cover having a rounded shape and having a height corresponding to the roof shape of the vehicle body, 8 is an indoor blower,
Reference numeral 9 is a return port provided on the bottom surface of the indoor unit room 4.
Further, 10 is a closing plate that closes the gap between the upper part of the cooler 5 and the indoor unit room cover 6, and 11 is a ventilation hole provided on the surface of the closing plate 10 that contacts the upper surface of the cooler 5.

FIGS. 3 and 4 are a side view and a front view of such a closing plate 10. The closing plate 10 is bent in a V shape when viewed from the front, and the upper end is welded to the indoor unit room cover 6 by welding or the like. Attached and supported, the cooler 5 at the lower end
Is a joining surface 10a joined to the upper surface of the. Also,
The joint surface 10a is provided with a plurality of ventilation holes 11.

Next, the operation will be described. First, the air inside the vehicle is sucked through the return port 9 by the operation of the indoor blower 8 and enters the indoor unit chamber 4 of the vehicle air conditioner 1. Further, this air is applied to the closing plate 10 joined to the upper surface of the cooler 5.
From the ventilation hole 11 and the sloping left side surface of the heat exchanger of the cooler 5, so that there is no dead space in which air does not flow in the heat exchanger, and the entire heat exchanger is utilized to generate sufficient heat. Will be exchanged. Further, the air thus heat-exchanged is sucked into the indoor blower 8 together with other air, is discharged into the vehicle through the discharge port 15, and is used for cooling the vehicle interior.

[0014]

As described above, according to the present invention, the indoor unit room is provided on the roof of the vehicle body together with the outdoor unit room and the compressor room, and the indoor unit room is provided with an inclination so as to provide an indoor blower. Is provided with a cooler that heat-exchanges and allows the air to be passed therethrough, and a closing plate provided between the upper part of the cooler and the indoor unit chamber cover, and is joined to the cooling plate upper surface of the closing plate. Since the ventilation hole is provided on the surface to be heated, the air flowing in from the ventilation hole also passes through the part that was previously considered as a dead space, so that all of the heat exchanger can be effectively used and set. There is an effect that the one that can maximize the cooling capacity in the space can be obtained.

[Brief description of drawings]

FIG. 1 is a plan view showing a vehicle air conditioner according to an embodiment of the present invention.

FIG. 2 is a front view in which a part of the vehicle air conditioner in FIG. 1 is cut away.

FIG. 3 is a side view showing a closing plate in FIG.

FIG. 4 is a vertical sectional front view showing a closing plate in FIG.

FIG. 5 is a plan view showing a conventional vehicle air conditioner.

FIG. 6 is a front view showing a part of the vehicle air conditioner in FIG.

[Explanation of symbols]

 2 Outdoor unit room 3 Compressor room 4 Indoor unit room 5 Cooler 6 Indoor unit room cover 8 Indoor blower 10 Closing plate 11 Vent hole

Claims (1)

[Claims] 1. An indoor unit room installed on the roof of a vehicle body together with an outdoor unit room and a compressor room, and an air blown by an indoor blower by exchanging heat, which is provided so as to be inclined in the indoor unit room. A cooling device to be passed through, a closing plate provided between the cooling device upper portion and the indoor unit chamber cover, and a ventilation hole provided on a surface of the closing plate that is joined to the cooling device upper surface. Air conditioning system for vehicles.