JPS5921928Y2 - Automotive air conditioner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improved structure of a heating outlet portion of an air conditioner for an automobile.

BACKGROUND ART Conventionally, in an automotive air conditioner, a heating outlet duct is connected to the main body case by screws or the like, and the outlet duct is provided with an outlet nozzle that imparts directionality to the blown air in a predetermined direction.

The above-mentioned blow-off duct is usually made from a resin molded product, but due to the structure of the resin molding mold, the blow-off nozzle part is in the drawing direction, so it requires a slide core, etc., which increases the cost of the mold. There is.

Additionally, the blow-off nozzle part is manufactured as a separate part for this purpose, but this requires additional molding and assembly work for the blow-off nozzle part, which increases the overall manufacturing cost. There are drawbacks.

In view of the above-mentioned points, an object of the present invention is to provide an air conditioner for an automobile that can significantly reduce the manufacturing cost of a heating blow-off duct by simplifying the structure of the blow-off nozzle part.

The present invention will be described below with reference to embodiments shown in the drawings.

In Figures 1 to 4, 1 is a resin main body case of an air conditioner, which houses a heater core 2 for heating that uses engine cooling water as a heat source, and a bypass path 3 is formed on the side of this heater core 2. has been done.

Reference numeral 4 denotes a temperature control air mix damper, which controls the temperature of the blown air by adjusting the air volume ratio between the warm air heated by the heater core 2 and the cold air passing through the bypass path 3.

Air flows into the main body case 1 as shown by arrow A via an inside/outside air switching box, a cooling evaporator, etc. (not shown).

5 is formed downstream of the heater core 2 and the bypass path 3;
6. A mixing chamber that performs cold ink-like mixing; 7. Reference numeral 8 denotes an upper outlet for cooling and ventilation, a defroster or evening outlet, and a lower outlet for heating, which are open to the mixing chamber 25.

9 is a damper that switches between opening and closing the upper air outlet 6 and the defroster air outlet lower; 10 is a damper that opens and closes the lower air outlet 8;
Both dampers 9 and 10 are operated in conjunction with a blowout mode lever (not shown).

Reference numeral 11 denotes a heating blow-off duct which is connected to the main body case 1 by screwing or the like so as to cover the lower blow-off port 8, and is made of a resin molded product.

The heating air duct 11 has a rear seat heating air outlet 12, and guide plate portions 13a and 13b integrally formed in a U-shape as shown in FIG. 4.

On the other hand, the main body case 1 has a shape that imparts directionality in a predetermined direction (direction of arrow B) to the air blown out from the blow-off duct 11.
In this example, as shown in FIG. 3, recesses 14a and 14b having a smooth recessed shape facing diagonally downward are integrally formed, and the guide plate portion 14a is placed outside the recesses 14a and 14b at a predetermined interval. , 14b are arranged.

These recessed portions 14a, 14b and the guide plate portions 13a, 13
b constitute blow-off nozzles 15a and 15b that blow out air to the feet of the front seat occupant.

The operation in the above configuration will be explained.

In the heating mode, the damper 9 is operated to the two-dot chain line position and the damper 10 is operated to the solid line position, and the froster blowout lower and lower blowout port 8 are opened, so that the heater core 2 is heated and the air mix damper 4 adjusts the temperature appropriately. The hot air thus generated flows into both the blowing lowers 8.

Then, the warm air flowing into the lower air outlet 8 side flows into the air outlet duct 1.
1 and blows out from the rear seat heating outlet 12 into the vehicle interior, as well as the guide plate portions 13a and 13b of the air outlet duct 11.
are guided into the recesses 14a and 14b of the main body case 1.
Hot air is guided to the recesses 14a and 14b, and the hot air is blown out in a predetermined direction B determined by the shapes of the recesses 14a and 14b.

As described above, in the present invention, the recess formed integrally with the main body case and the guide plate portion integrally formed with the blow-off duct 11 are combined to form the blow-off nozzle that blows air toward the feet of the passenger. This has the great effect of simplifying the shape, making it easier to mold the blowout duct, and reducing manufacturing costs.

Another advantage is that the direction of the blown air can be set relatively freely by selecting the shape of the recess in the main body case.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a schematic sectional view of the heating unit of the device of the present invention, FIG. 2 is a side sectional view of the air outlet portion of FIG. 1, and FIG. FIG. 1 is an enlarged sectional view of the main part, and FIG. 4 is an exploded perspective view of FIG. 3. 1...Main body case, 2...Heater core, 3...Bypass path, 11...Heating air duct, 13a, 13b... guide plate part,
14a, 14b... recess, 15a. 15b...Blowout nozzle.

Claims (1)

[Scope of utility model registration request] In an automobile air conditioner in which a heating outlet duct is connected to a main body case of the air conditioner, a recessed portion having a shape that gives directionality to the blown air is formed in the main body case, and
An air conditioner for an automobile, characterized in that a guide plate portion that guides the blown air to the recessed portion is integrally formed in the blowing duct, and the recessed portion and the guide plate portion constitute a blowing nozzle that blows out the blown air to the footwell of the passenger. .