JPS585613Y2 - Automotive heating system - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of the footwell blowing part of an automobile heating system, and aims to reduce the ventilation resistance of hot air when installed in a narrow space below a vehicle interior instrument panel. .

Automotive heating systems are usually installed at the bottom of the instrument panel at the front of the cabin, and in the center of the cabin to evenly heat both sides of the cabin, but in front-engine, rear-drive cars. Because a portion of the drive shaft cover protrudes from the center of the vehicle, there is a narrow gap between the lower part of the instrument panel and the drive shaft cover, and this is particularly true in small vehicles, where heating equipment is installed within this narrow space. A sufficient amount of space was not available at the foot-blowing part of the heating device, and the ventilation resistance of the hot air blown to the feet was large, making it impossible to obtain a sufficient amount of hot air.

This invention was developed for the reasons mentioned above. A slit is provided in the damper that opens and closes the foot outlet and in the shielding plate below the heater core, and the slit closes the air path when the damper comes into contact with the shielding plate. By forming the dampers alternately, warm air can flow from below the damper to the foot outlet.

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, a heating device 1 is installed between a drive shaft cover part 2 and an instrument panel lower part 3, and the firewall 4 side of the drive shaft cover part 2 has a tapered enlarged part 2a.
It becomes.

This heating device 1 has a blower 6 disposed in the upper part of the case 5, and a heater core 7 disposed in the middle part.

An upper air outlet 8 is opened in the front wall of the case 5, and a partition wall 9 extending from the back wall 16 of the case 5 is formed below the heater core 7. It is opened as an outlet 10.

Reference numeral 11 denotes an air mix door, which is disposed upstream of the heater core 7 and divides the air sent by the blower 6 into air passing through the heater core 7 and air exiting from the upper air outlet 8.

Reference numeral 12 denotes a foot blower door, which controls the wind coming out from the foot blower outlet 10.

The main structure of the present invention will be explained in detail with reference to FIG. 2. The partition wall 9 is provided with band-shaped punched parts 9a, 9b, 9C,
Similar punching parts 12 a , 12 are also provided on the foot outlet door 12 .
b is provided.

The punched parts 9a, 9b, 9C and 12a, 12b are formed so as not to overlap with each other, and the foot outlet door 12 rotates around the support shaft 13 and joins to the partition wall 9 at one rotational position. At this position, the warm air passing through the heater core 7 is blocked by the partition wall 9 and the foot outlet door 12.

The lower part of the case has a bottom wall 14 and a slanted wall 15 along a part of the aforementioned drive shaft cover, and when the foot outlet door 12 is in the other rotational position, that is, when hot air is blown out from the foot outlet 10. ,
The tip of the foot blow-off door 12 is in a position where it abuts against the inclined wall 15.

Therefore, the foot air outlet 10 formed by the respective edges of the partition wall 9, the bottom wall 14, the inclined wall 15, and the back wall 16, when the foot air outlet door 12 is in a position where it contacts the inclined wall 15, It is further divided into an upper portion 10a and a lower portion 10b.

The foot blow-off door 12 has punched parts 12a, 1
2b are provided, so the punched parts 9a, 9b of the heater core 7 and the partition wall 9.

A part of the hot air that has passed through 9C is discharged into the vehicle interior from the upper part 10a of the foot outlet 10, and also passes through the punched parts 12a and 12b and is also discharged into the vehicle interior from the lower part 10b. It is something that will be done.

As mentioned above, the automotive heating device according to the present invention is provided with a bulkhead having a band-shaped punched portion below the heater core, which is joined to the bulkhead at one rotational position, and connected to the diagonal of the heater case at the other rotational position. The foot outlet door that contacts the wall is also provided with a punched part, and both punched parts are positioned to close when the bulkhead and the foot outlet door come into contact with each other. The foot air outlet formed at the edge is divided into two parts by the foot air outlet when the foot air outlet is in a position where it touches the slanted wall to blow hot air to the feet, but the lower part of the foot air outlet is It can also blow hot air from the

Therefore, the bottom wall and inclined wall of the heater case are formed along a part of the drive shaft cover in the center of the vehicle compartment and its enlarged part, so that even if the tip of the footwell outlet comes into contact with the inclined wall, the area of the footwell outlet will not be reduced. Therefore, a sufficient heating effect can be obtained, and the space between the part of the drive shaft cover and the enlarged part of the vehicle interior and the lower part of the instrument panel can be effectively utilized to provide a high-performance automotive heating system. This is a practically effective idea.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a heating device for an automobile according to the present invention, and FIG. 2 is a perspective view of a main part of the heating device for an automobile according to the present invention. 2: Part of drive shaft cover, 2a: Enlarged part, 5: Blower, 7:
Heater core, 9: Partition wall, 9a, 9b, 9C: Punching part, 10: Foot outlet, 10a: Upper part, 10b: Lower part, 12: Foot outlet door, 12 a, 12 b:
Punching part, 14: Bottom wall, 15: Slanted wall.

Claims (1)

[Scope of utility model registration request] The bottom wall 14 and the inclined wall 15 of the case 5 have a foot outlet 10 that forms at least a part of the edges thereof, and contacts the partition wall 9 formed below the heater core 7 at one position and at the other end. In the automobile heating system having a foot blow-off door 12 whose tip abuts against a slanted wall 15 at a position, the partition wall 9
A punched portion is formed in each of the foot outlet door 12,
The punched portions are provided in a position where they do not overlap so that the warm air passing through the heater core 7 is blocked when the foot outlet door 12 is in contact with the partition wall 9, and when the foot outlet door 12 is in a position where it is in contact with the inclined wall 15. A heating device for an automobile characterized in that warm air passing through a heater core 7 is discharged from the entire surface of a footwell outlet 10.