JP2590261Y2 - Rooftop-mounted vehicle air conditioner - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for a rooftop type vehicle, and is particularly suitable for use in large vehicles such as bus vehicles.

[0002]

2. Description of the Related Art Conventionally, in large vehicles such as bus vehicles,
Rooftop air conditioners that are excellent in terms of bodywork and versatility are often used. This rooftop type air conditioner includes a package type air conditioner unit in which functional components other than a refrigerant compressor of a refrigeration cycle are integrally housed in a unit case and installed on a roof of a vehicle.

[0003]

However, in the conventional rooftop type air conditioner, the opening on the vehicle side is designed in accordance with the opening positions of the air inlet and the cool air outlet formed in the unit case of the air conditioning unit. Needed. In particular, since the air suction port on the air conditioning unit side is often formed in the center of the unit case located at the center in the width direction of the vehicle, the opening on the vehicle side communicating with this air suction port is inevitable. The vehicle is opened at the center in the width direction of the vehicle.

However, in recent sightseeing buses and the like, room lights are continuously installed at the center in the width direction of the vehicle in the front-rear direction of the vehicle. In this case, if the opening is provided at the center in the width direction of the vehicle as described above, it is not possible to install the interior light only at that portion, which impairs the design appearance. Therefore, when actually installing an air conditioning unit having an air inlet at the center of the unit case, it is not possible to adopt a method of continuously installing the interior lights at the center in the width direction of the vehicle. As described above, the conventional rooftop type air conditioner has a problem that the design and design of the vehicle side are greatly restricted. The present invention has been made based on the above circumstances, and an object of the present invention is to provide a rooftop-installed vehicle air conditioner with less restrictions on the design and design of the vehicle side and more excellent versatility. .

[0005]

According to the present invention, in order to achieve the above object, the air conditioning functional parts including a refrigerant evaporator for cooling the passing air are integrally housed in a unit case. In a rooftop-mounted vehicle air conditioner having a packaged air conditioning unit installed on the roof of a vehicle, the air conditioning unit comprises an air intake opening to the ceiling of the vehicle.
At the same position in the front and rear direction of the vehicle as the unit case
With an opening that opens to the bottom of the unit.
Attached to the bottom of the case and partially closed the opening
Having a closing plate for closing, the opening portion is opened depending on a vehicle type.
To different air intakes at different positions in the vehicle width direction.
Width direction enough to accommodate the opening position of the air intake
Having a width of the opening plate , the closing plate can be opened as a suction port for introducing vehicle interior air into the unit case, a portion of the opening portion facing the air intake,
Technical means is that the mounting position of the closing plate with respect to the unit case is provided so as to be changeable in the vehicle width direction. Further, the refrigerant evaporator is a technical means in which a core surface through which air passes is disposed so as to face a front-rear direction of the vehicle.

[0006]

In the rooftop-installed vehicle air conditioner of the present invention having the above-described structure, a part of the opening formed on the bottom surface of the unit case is closed by the closing plate. The position of the obstruction plate in the unit case is changed in the vehicle width direction so that a portion of the opening facing the air inlet can be opened as a suction port for introducing air in the vehicle compartment into the unit case. It is provided as possible. Therefore, the position of the suction port of the unit case can be changed by changing the attachment position of the closing plate to the unit case according to the opening position of the air intake formed on the vehicle side. Further, by arranging the refrigerant evaporator such that the core surface faces in the front-rear direction of the vehicle, it is possible to secure the degree of freedom in the vehicle width direction of the opening opening on the bottom surface of the unit case.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a rooftop type vehicle air conditioner of the present invention will be described with reference to FIGS. FIG. 1 is a schematic diagram of an air conditioning unit installed in a bus vehicle. The rooftop-mounted vehicle air conditioner of the present embodiment is mounted on the bus vehicle 1, and includes a refrigerant compressor (not shown) driven by a traveling engine (not shown) of the bus vehicle 1.
The air conditioner includes a package type air-conditioning unit 2 in which various functional components (described below) constituting a refrigeration cycle other than the refrigerant compressor are integrally stored.

In the refrigeration cycle, in addition to the refrigerant compressor, a refrigerant condenser 4 receives the air from the condenser fan 3 to condense and liquefy the high-temperature and high-pressure refrigerant discharged from the refrigerant compressor. A receiver (not shown) for temporarily storing the refrigerant and flowing only the liquid refrigerant, a decompression device (not shown) for decompressing and expanding the liquid refrigerant led from this receiver, and a decompression device that receives air blown by the blower 5 for the evaporator. And a refrigerant evaporator 6 for evaporating the obtained low-temperature and low-pressure refrigerant.

The air conditioning unit 2 houses the condenser fan 3 and the evaporator blower 5 in a unit case 7 together with the functional components (refrigerant condenser 4, receiver, pressure reducing device, refrigerant evaporator 6) of the refrigeration cycle. It is installed on the roof of the bus vehicle 1 (see FIG. 3). The refrigerant condensers 4 are disposed one by one on both the left and right sides in the vehicle width direction on the vehicle front side (the left side in FIG. 1) of the air conditioning unit 2. The refrigerant evaporator 6 has a core shape longer in the vehicle width direction on the vehicle rear side than the refrigerant condenser 4,
The core surface (the surface through which air passes) is arranged so as to face the vehicle front-rear direction. The condenser fan 3 has 2
Two in the vehicle front-rear direction between the refrigerant condensers 4 of the container,
The three evaporator blowers 5 are arranged in the vehicle width direction on the vehicle rear side of the refrigerant evaporator 6.

The unit case 7 includes a condenser fan 3.
An outside air inlet 8 (see FIG. 3) for introducing the air blown to the refrigerant condenser 4 from outside the vehicle compartment with the operation of the air conditioner, and an exhaust port for discharging the air heated by the refrigerant condenser 4 to the outside of the vehicle compartment. 9 (see FIG. 3), an inside air inlet 10 (inlet of the present invention, see FIG. 1) for introducing air to be blown to the refrigerant evaporator 6 with the operation of the evaporator blower 5 from the vehicle interior, and refrigerant evaporation. A cool air outlet 11 (see FIG. 1) for supplying the air cooled by the heater 6 into the vehicle interior is provided.

The outside air inlets 8 are respectively provided above the respective refrigerant condensers 4 arranged on both sides of the condenser fan 3,
The exhaust ports 9 are respectively provided above the condenser fans 3. Further, the inside air inlet 10 is formed by closing a part of an opening 12 (described below) opened on the bottom surface of the unit case 7. The cold air outlets 11 are provided at two locations on the bottom surface of the unit case 7 on the vehicle rear side of the evaporator blower 5 and communicate with air conditioning ducts 13 extending in the front-rear direction of the bus vehicle 1 on both left and right sides of the vehicle interior. I have.

The opening 12 is long in the vehicle width direction on the vehicle front side of the refrigerant evaporator 6, and as shown in FIG. 4, the central portion has two plates 14 (the closing plate of the present invention). )
Is blocked by Therefore, both sides of the opening 12 not closed by the plate 14 are used as the inside air introduction port 10. The plate 14 is fixed to the bottom surface of the unit case 7 with bolts 15 (or rivets or the like) so that the plate 14 can be removed from the unit case 7. The opening 1 is provided on the bottom of the unit case 7.
Bolt holes 16 (or rivet holes) are appropriately provided on both sides of 2, and embedded nuts (not shown) are attached to the outside of the unit case 7 at the same positions as the bolt holes 16. The bolt holes 16 and the embedded nuts are provided to the left and right ends of the opening 12 so that the mounting position of the plate 14 with respect to the unit case 7 can be changed.

The opening 12 has a length A.times.width B = 12.
The plate 14 is provided in a size of 00 mm × 160 mm (see FIG. 4).
It is provided with a size of 0 mm (see FIG. 4). Also,
The plate 14 functions as a reinforcing member by being fixed to the unit case 7 so as to close a part of the opening 12.

On the other hand, in the bus vehicle 1 in which the air conditioning unit 2 is installed, as shown in FIG. 1, an interior light space 18 for installing an interior light 17 is provided at a central portion in the vehicle width direction. The interior light space 18 has a fixed width W (W <2
× C), it is provided long in the front-rear direction of the bus vehicle 1.
The interior lights 17 are installed in the interior light space 18 at regular intervals in the front-rear direction of the bus vehicle 1.

The ceiling wall of the bus vehicle 1 has an air inlet 19 (see FIG. 2) communicating with the inside air inlet 10 of the air conditioning unit 2 and a cool air supply port 20 (FIG. 2) communicating with the cool air outlet 11. Reference). Air intake 19
Are provided one by one at positions opposite to the inside air inlet 10 of the air conditioning unit 2 on both sides of the interior light space 18 near the rear of the vehicle. The air inlet 19 has the same shape and substantially the same opening area as the inside air inlet 10 described above. The cold air supply port 20 is located on the rear side of the vehicle from the air inlet 19 and on both sides of the interior light space 18,
1 is provided at a position opposing to 1 and connected to the air conditioning duct 13.

As described above, in the rooftop-mounted vehicle air conditioner of the present embodiment, the central portion of the opening 12 opening to the bottom surface of the unit case 7 is closed by the plate 14, and is not closed by the plate 14. Both sides of the opening 12 can be used as the inside air inlet 10. For this reason, the air conditioning unit 2 of the present embodiment is installed in the bus vehicle 1 having the interior light space 18 in the center of the vehicle interior as described above, without requiring a design change on the vehicle side. be able to. Further, in the present embodiment, the refrigerant evaporator 6 has a core shape that is long in the vehicle width direction, and the core surface is arranged so as to face the vehicle front-rear direction. The degree of freedom of the opening 12 in the vehicle width direction can be ensured.

Further, since each plate 14 is attached to the bottom surface of the unit case 7 by the bolt 15, it is possible to change the attachment position of the plate 14 when the air conditioning unit 2 is mounted. Therefore, for the bus vehicle 1 in which the air intake 19 is provided in the center of the vehicle cabin, FIG.
By mounting each plate 14 on the bottom surface of the unit case 7 at a position where both ends of the opening 12 are closed, the central portion of the opening 12 facing the air inlet 19 is opened, as shown in FIG. It can be used as mouth 10.

[0018]

The air-conditioning unit according to the present invention has a closing plate for closing a part of the opening, which is detachably attached to the unit case, so that the air-conditioning unit according to the opening position of the air intake formed on the vehicle side. By changing the mounting position of the closing plate, a suction port can be set at a portion facing the air intake. For this reason, it is possible to cope with a vehicle having a different opening position of the air inlet only by changing the mounting position of the closing plate. As a result, it is possible to provide a rooftop-installed vehicle air conditioner with less restrictions on the design and design of the vehicle side and more excellent versatility.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of an air-conditioning unit showing a state installed in a bus vehicle.

FIG. 2 is a schematic side view of the air conditioning unit showing a state where the air conditioning unit is installed in a bus vehicle.

FIG. 3 is a perspective view showing an installation state of an air conditioning unit.

FIG. 4 is a plan view showing a state where the center of the opening is closed by a plate.

FIG. 5 is a plan view showing a state where both ends of an opening are closed by a plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bus vehicle (vehicle) 2 Air conditioning unit 4 Refrigerant condenser (functional component) 6 Refrigerant evaporator 7 Unit case 10 Inside air inlet (suction port) 12 Opening 14 Plate (blocking plate) 19 Air intake

Claims (2)

(57) [Scope of request for utility model registration] 1. A package type air conditioning unit is provided on a roof of a vehicle, in which various air conditioning functional components including a refrigerant evaporator for cooling passing air are integrally housed in a unit case. In a rooftop-mounted vehicle air conditioner, the air conditioning unit is an air intake opening to a ceiling of the vehicle.
And the unit case at substantially the same position in the vehicle longitudinal direction.
With an opening that opens to the bottom of the unit.
Attached to the bottom of the case and partially closed the opening
It has a closing plate that closes, and the opening has a position in the vehicle width direction that is opened depending on a vehicle type.
Openings of each air inlet for different air inlets
Has a vehicle width direction of the opening wide enough to correspond to the position, the closure plate has an opening the air inlet opposed to the site of the opening as a suction port for introducing room air into the unit case A roof-mounted air conditioner for a vehicle, wherein a mounting position of the closing plate with respect to the unit case is provided so as to be changeable in a vehicle width direction. 2. The air conditioner according to claim 1, wherein the refrigerant evaporator is arranged such that a core surface through which air passes is oriented in the front-rear direction of the vehicle.