JPH06115343A - Extension duct of air conditioner for vehicle - Google Patents

Abstract

PURPOSE:To provide the extension ducts of a vehicle air conditioner which make a vehicle room ceiling excellent in appearance and rich in a high class feeling and at the same time are excellent in furnishability with a small number of parts. CONSTITUTION:These are the extension ducts 7 of a vehicle air conditioner which are furnised at a vehicle room ceiling and are provided with blowing-out openings 76 through which air-conditioning air is blown out into the vehicle room, and a feature is that the lower portions 70 of the extension ducts 7 are formed by bulging out a vehicle ceiling material 60 downward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extension duct for an air conditioner mounted on a vehicle compartment ceiling of a vehicle.

[0002]

2. Description of the Related Art An air conditioner for a vehicle such as a one-box automobile is provided with a cooling unit (indoor unit) installed horizontally on the ceiling of the passenger compartment or installed on the floor of the passenger compartment, and an air conditioner for this cooling unit. It has an extension duct that is connected to the air outlet and is attached to the ceiling of the vehicle compartment and that mainly supplies conditioned air to seats in the middle or rear of the vehicle compartment. Conventionally, this extension duct is mounted by suspending a tubular structure, which is separate from the ceiling material, on a reinforcement that supports the roof of the vehicle compartment, or by fixing it to the ceiling material. Also,
2. Description of the Related Art In recent years, a vehicle interior ceiling has been integrally formed of resin in order to increase the head space of the vehicle interior, improve the durability of the ceiling material, and improve the attachment of the ceiling material.

[0003]

However, when the integrally molded ceiling member and the extension duct of the air conditioner are formed as separate bodies, a gap or a step is formed at the joint between the two, resulting in poor appearance and lack of luxury. However, the number of parts is increased and the number of mounting steps is increased, resulting in high cost. An object of the present invention is to provide an extension duct for an air conditioning system for a vehicle, which has a good appearance of a vehicle cabin ceiling and a high-class feeling, and has a small number of parts and excellent mountability.

[0004]

SUMMARY OF THE INVENTION The present invention is directed to an extension duct of a vehicle air conditioner mounted on a vehicle compartment ceiling and provided with an outlet for blowing conditioned air into the vehicle interior. It is characterized in that it extends to form the lower part of the extension duct.

[0005]

According to the present invention, the lower portion of the extension duct of the air conditioner mounted on the vehicle compartment ceiling is integrally formed by bulging the ceiling material of the integrally molded ceiling downward. As a result, the joint between the extension duct and the ceiling material does not exist, and the appearance is good and the appearance is excellent, and the number of parts and the number of assembling steps can be reduced, and the cost can be reduced.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a cabin ceiling portion of a one-box vehicle equipped with a cooling unit of an indoor unit of an air conditioner, and FIG. 2 shows a schematic cross section of the one-box vehicle. As shown in FIG. 2, the air conditioner 100 includes an outdoor unit 1,
The indoor unit 2 is provided. The outdoor unit 1 compresses and condenses the refrigerant and supplies it to the indoor unit 2. The indoor unit 2 is mainly a guest room (passenger seat)
A rear cooling unit 3 for air conditioning the vehicle and a front cooling unit 4 mainly for air conditioning the driver's seat are provided. The outdoor unit 1 is formed by connecting a refrigerant compressor 11, a refrigerant condenser 12, and a gas-liquid separator 13 driven by an engine with a refrigerant flow pipe 14, and the refrigerant flow pipe 14 is used to transfer the liquid phase refrigerant to the indoor unit. Supply to 2. Then, the gas-phase refrigerant is returned from the indoor unit 2 to the outdoor unit 1 through the refrigerant flow pipe 15.

The rear cooling unit 3 is attached to a reinforcement R that reinforces the roof of the vehicle. In this embodiment, the rear cooling unit 3 is horizontally mounted on the ceiling portion between the driver seat 200 and the passenger compartment 300. The rear cooling unit 3 is
As shown in FIG. 1, the blowers 32 and 32 mounted on both ends of the unit case 31 and the evaporator 3 arranged at the discharge ports of the blowers 32 and 32 in the unit case 31 are shown.
3, 33 (shown in FIG. 2), and an evaporator 33,
Two left and right conditioned air outlets 34, 34 are provided on the rear surface of the unit case 31, which is located downstream of the unit 33.

In this embodiment, the ceiling of the passenger compartment 300 is composed of a front ceiling 5 and a rear ceiling 6, both of which are integrally formed by adhering a skin material to the lower surface of a plastic substrate and adhering it to a predetermined shape. The members 50 and 60 are fixed to the lower surface of the roof Y of the automobile. As shown in FIGS. 1 and 2, the ceiling materials 50 and 60 are fixed to each other by providing a large number of small holes 51 and 61 at predetermined positions around the ceiling materials 50 and 60, and fixing the roof Y through these small holes 51 and 61. Resin hook F in the hole provided in supporting reinforcement R
Is done by plugging in. As the surface layer material, for example, a vinyl material or a cloth material is attached to urethane, and a cloth material having a high cushioning property and a high quality is used.
Further, a heat insulating material and a sound insulating material are interposed between the ceiling materials 50 and 60 and the roof Y as required.

The front ceiling member 50 is formed with a lateral groove 52 serving as a unit cover portion of the rear cooling unit 3 by bulging the middle portion downward. The lateral groove 52 accommodates the rear cooling unit 3 therein. To be done. Ventilation holes 53, 53 with grills for supplying intake air to the blowers 32, 32 are opened in the lateral groove 52. In addition, a pair of vertical grooves 54, 54 is formed continuously on the rear side of the lateral groove 52 to cover the blowout flow path continuous with the air conditioning air outlets 34, 34 of the rear cooling unit 3.

The rear ceiling 6 is the gist of the present invention,
The lower portions 70 of the pair of extension ducts 7 for uniformly blowing the conditioned air into the passenger compartment 300 are integrally formed. That is, the rear ceiling member 60 has a pair of vertical grooves 64, 64 formed by bulging downward corresponding to the vertical grooves 54, 54. Each vertical groove 64 has a bottom plate portion 71 and both side plate portions 72, 7.
3 and constitutes a lower portion 70 of each extension duct 7. Further, each vertical groove 64 is covered with a resin lid plate 74 formed separately, and the respective extension ducts 7, 7 having a rectangular tubular shape with an inlet 75 opened and a rear end closed are formed. . Air outlets 76 are arranged in a row on each of the bottom plate portions 71, 71. Air-conditioning air outlet 34 of the rear cooling unit 3
And the inlet 75 of the extension duct 7 are connected by a connection duct 8 made of a resin cylinder.

As in this embodiment, the front ceiling 5 and the unit case 31 of the rear cooling unit 3 are integrated,
By integrating the rear ceiling 6 and the extension duct 7,
The appearance of the interior of the passenger compartment can be improved, and the grade of the vehicle can be upgraded, while the number of parts can be reduced and the mountability can be improved.
Further, it is possible to give a uniform cooling feeling to the entire area inside the vehicle. The ceiling material 60 of the rear ceiling 6 and the lid plate 74 or the connection duct 8 may be integrated. Further, it is possible to integrally form the front ceiling member 50 and the rear ceiling member 60, whereby the number of parts can be further reduced. Further, the shape of the lower portion 70 of the extension duct 7 integrally formed by the downward bulging of the ceiling material 60 of the rear ceiling 6 can be appropriately selected, and for example, only the first half of the extension duct 7 can be bulged. is there.

[Brief description of drawings]

FIG. 1 is an assembly view of a ceiling portion of an automobile having an extension duct of the present invention.

FIG. 2 is a schematic view of a one-box vehicle equipped with the extension duct of FIG.

[Explanation of symbols]

 100 Indoor Unit 1 Indoor Unit 2 Outdoor Unit 3 Rear Cooling Unit 4 Front Cooling Unit 5 Front Ceiling of Guest Room 6 Rear Ceiling of Guest Room 7 Extension Duct 70 Bottom of Extension Duct 76 Air Conditioning Air Outlet

Claims (1)

[Claims] 1. An extension duct of a vehicle air conditioner mounted on a ceiling of a vehicle compartment and provided with an outlet for blowing conditioned air into the vehicle compartment, wherein a ceiling material of the vehicle compartment is bulged downward to form a lower portion of the extension duct. An extension duct for a vehicle air conditioner, which is characterized in that