JPS6232887Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating and cooling system for a vehicle, and more particularly to a heating and cooling system for a vehicle that includes a blower section, a heater section, and a duct section disposed between the two.

In a conventionally known air conditioning system for a vehicle, a blower section, a heater section, and a duct section connected between the two are installed in the vehicle from the beginning. On the other hand, the cooler section is installed later in place of the duct section at the request of the user. The structure of the joints between the cooler part, blower part, and heater part is designed to provide excellent installation performance required when installing the cooler part, and therefore the joint part of the duct part is also the same as that of the cooler part. It has the same structure as shown in FIG.

However, in the conventional joint structure of the duct part, the material of the duct part is different from the hard resin material such as polypropylene used for the case of the cooler part, the blower part, and the case of the heater part, and is made of a soft resin material. Since resin materials such as polyethylene are often used, an L-shaped iron plate 8 is installed on the inner surface of the end of the duct part 2 in order to prevent the duct part from deforming due to the restoring force of the compressed sealing gasket used in the joint part. is attached using fasteners, rivets, etc., and an L-shaped wall portion 2d is provided at the end of the duct portion 2, the upper and front sides thereof being stepped radially outward and then extending outward in the axial direction. An iron plate 9 for connecting and fixing the blower section and the heater section is mounted on this wall section 2d using fasteners, etc., which has the disadvantage that the duct section 2 becomes very expensive. Was. Furthermore, the third
In the figure, 7 is a gasket that is closely fixed to the inner surface of the wall portion 2a and the outer surface of the end of the duct portion where the iron plate 8 is provided, and the gasket 7 is compressed to the joint of the conventional blower portion 1 shown in FIG. By connecting the duct part 2 using the iron plate 9, an airtight connection between the blower part 1 and the duct part 2 is achieved, and in the same way, the connection with the heater part 3 shown in FIG. 1 is achieved.

The present invention improves the connection between the blower section or the heater section and the duct section, eliminates the above-mentioned conventional drawbacks, reduces the cost of the duct section, and allows easy connection to the duct section without compromising airtightness. It is an object of the present invention to provide an air conditioning/heating system for an automobile which can be connected to a cooler part and has a connecting part structure that is easy to install in the conventional manner.

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

In FIGS. 4 to 11, 1 is a blower section;
2 is a duct part, and 3 is a heater part. Reference numeral 4 indicates a front dart board that shields between the seat side of the automobile and the engine mounting portion, and reference numeral 5 indicates a side dart board. 6 indicates a cooler section. As shown in FIGS. 6 and 8, the blower section 1 is connected to the duct section 2 shown in FIG. 7 or the cooler section 6 shown in FIG.
and the opening end of the heater section 3.
and 3' have cylindrical connecting parts 1c and 3c with tapered outer surfaces projecting outward in the axial direction, respectively.
is formed. Further, around the cylindrical connecting portions 1c, 3c, there are L-shaped wall portions 1a, 3a facing the front dashboard 4 side and the lower side of the vehicle interior, respectively, at a distance from the connecting portions 1c, 3c. It is formed integrally with the heater section 3. As shown in FIG. 7, a blower section 1 is provided at both open ends of the duct section 2.
Further, cylindrical fitting portions 2c, 2c are formed to closely fit into the cylindrical connecting portions 1c, 3c formed in the coupling portions 1, 3 of the heater portion 3. The duct portion 2 is provided with a bellows portion 2a at its center, and the duct portion 2 is made of a soft material such as polyethylene resin so that the bellows portion can be expanded and contracted. Further, as shown in FIG. 9, at the connecting portion 6' of both ends of the cooler section 6, an L is formed such that the seat side and the upper side of the passenger compartment are stepped outward in the radial direction and then project outward in the axial direction. Letter-shaped wall 6
a, and a flange 6e that is perpendicular to both ends of the L-shaped wall portion 6a and has holes 6d for fixing to the connecting portions 1' and 3' of the blower portion 1 and the heater portion 3. It is formed. Further, on the inner surface of the wall portion 6a and the outer surface of the wall portion 6b on the front dash board side and the lower part of the vehicle interior of the joint portion 6', there is a gasket 7 made of a non-breathable elastic material such as closed cell urethane. It is tightly fixed.

Next, the assembly of this embodiment will be explained.

Air blower unit 1 installed in advance in the vehicle interior
In order to connect and arrange the duct part 2 between the air blower part 1 and the heater part 3 as shown in FIG. The fitting part 2c at the blower side end of the duct part 2 is fitted between the wall part 1a and the other end of the duct part 2 by compressing the serpentine part 2a at the center of the duct part 2. The fitting part 2c is fitted into the cylindrical connecting part 3c of the connecting part 3' of the heater part 3. In this way, due to the restoring force of the bellows part 2a, the duct part 2 is connected and arranged between the blower part 1 and the heater part 3 while maintaining airtightness, and the packing is compressed as in the conventional case. There is no need to connect the duct parts. Therefore, there is no need to use reinforcing iron plates since there is no need to worry about deformation of the duct section (Figure 10). In this case, the cylindrical connecting part 1c of the blower part 1 and the fitting part 2c of the duct part 2
The state of connection with is as shown in FIG. As described above, the duct portion 2 can be easily assembled with a simple operation.

Next, as shown in FIG. 5, in order to assemble the cooler section 6 between the blower section 1 and the heater section 3, as in the past, connect the joints 6' at both ends of the cooler section 6 to the blower section. The cooler part 6 is pressed from the seat side toward the front dashboard side, facing the joint part 1' of the part 1 and the joint part 3' of the heater part 3. As a result, the inner surface of the wall 6a of the joint 6' and the outer surface 1 of the joints 1' and 3'
b, 3b are in contact with each other via the packing 7,
Further, on the front dash board side, the outer surface of the wall 6b of the joint 6' on the lower side of the vehicle interior and the L-shaped walls 1a, 3a of the joints 1', 3' are in contact with each other via a gasket 7. Here, the fixing holes 6d provided in each flange 6e of the coupling portion 6' and the fixing holes 1d and 3d provided in the coupling portions 1' and 3' are fixed with bolts and nuts (not shown), respectively. As a result, the packing 7 is inserted between the wall 6a of the joint 6' of the cooler part and the outer surface 1b of the joint 1' of the blower part, and between the wall 6b of the joint 6' and the wall 1a of the joint 1'. The cooler section 6 is compressed between the blower section 1 and the blower section 1.
They will be airtightly connected to each other. The combined state in this case is shown in FIG. Moreover, the structure between the cooler section 6 and the heater section 3 is similarly configured. In this way, as in the conventional case, assembly is carried out by simply pressing and fixing the cooler section 6 against the front dashboard side.

In the embodiment shown in FIGS. 4 to 11, the connecting portion 1' of the end of the blower section 1 and the heater section 3
Although the cylindrical connecting portions 1c and 3c of 3′ and the fitting portions 2c at both ends of the duct portion 2 are each formed into a rectangular tube shape, these may also be formed into a cylindrical shape, an elliptical shape, etc. good. In addition, the cooler section 6 is connected to the front dash board 4.
I tried to assemble it by pressing it to the side, but the blower part 1,
Joint parts 1', 3', 6' of heater part 3 and cooler part 6
By changing the direction in which the L-shaped walls 1a, 3a, and 6a are assembled, the cooler section may be pressed upward from the lower side of the vehicle interior or downward from the upper side of the vehicle interior for assembly. . In addition, if the cooler section is installed from the beginning, it is recommended to press the blower section against the front dashboard board, or to assemble it from the bottom of the passenger compartment upwards, or from the top inside the passenger compartment downwards. may be configured.

Further, in this embodiment, a combination of L-shaped wall portions 1a, 6a, and 3a are used for the joint portions 1', 6', and 3' of the blower portion 1, cooler portion 6, and heater portion 3, respectively. As shown in FIGS. 12 and 13, a combination of a joint 1'' having a U-shaped wall and a joint 6'' having a planar wall may be used. Also, the cylindrical connecting portions 1c, 3 of the connecting portions 1', 3'
When c is formed into a cylindrical shape, it is preferable to use a combination of semicircular wall portions. Further, for example, one end of the cooler section 6 is formed into a parallel duct shape without a wall, such as an L shape, and the blower section 1 is formed into a parallel duct shape, and the two are connected by insertion. Good too.

As described above, in the present invention, a cylindrical connecting part protruding outward in the axial direction is attached to the end of the blower part or the heater part of the automotive air conditioning system, and the cylindrical connecting part is connected around the cylindrical connecting part. A connecting part is provided between the connecting part and the wall part partially surrounding the connecting part, and using a cylindrical connecting part of the connecting part, a fitting part is provided at both ends that tightly fits with the connecting part. Since the structure is configured such that a cooler having a conventional type joint can be connected by connecting the duct part with the conventional joint part or using the wall surrounding the joint part of the joint part, there is no need to connect the air blower part and the heater part. The connecting arrangement of the duct part can be done simply and easily while maintaining airtightness, and the connecting arrangement of the cooler part between the blower part and the heater part can be made as easy to install as before. . Furthermore, since the duct part connected to the joint part of the present invention does not require a complicated joint part incorporating a conventional iron plate, the cost of the duct part can be significantly reduced.

[Brief explanation of drawings]

FIG. 1 is a plan view schematically showing a conventional automotive air conditioning system, FIG. 2 is a perspective view showing the blower section in FIG. 1, and FIG. 3 is a perspective view showing the duct section in FIG. 1.
4 and 5 are plan views schematically showing one embodiment of the automotive air conditioning system of the present invention, and FIG. 6 shows the connecting portion of the blower section of the embodiment shown in FIGS. 4 and 5. FIG. 7 is a perspective view showing the duct part of the embodiment shown in FIG. 4, and FIG. 8 is a perspective view showing the joint part of the heater part of the embodiment shown in FIGS. 9
10 is a sectional view taken along line - in FIG. 4, and FIG. 11 is a sectional view taken along line XI--XI in FIG. 5. FIG. 12 is a perspective view showing a connecting part of a blower part in another embodiment of the present invention, and FIG. 13 is a perspective view showing a connecting part of a cooler part in another embodiment of the present invention. 1...Blower part, 1'...Blower part joint part,
1a... L-shaped wall part, 1c... cylindrical connecting part,
2... Duct part, 2c... Fitting part, 2a... Bellows part, 3... Heater part, 3a... L-shaped wall part, 3
c...Cylindrical connecting part, 4...Front dash board, 6...Cooler part, 6'...Coupling part of the cooler part, 6a...Wall part, 7...Packing.

Claims (1)

[Claims for Utility Model Registration] (1) An air conditioning system for an automobile comprising a blower section, a heater section, and a duct section disposed between the blower section and the heater section, the blower section and A cylindrical connecting part protruding outward from each open end of the heater section, and a cylindrical connecting part provided outside the connecting part to be separated from the connecting part by a predetermined distance, and partially connecting the connecting part. A cooling/heating device for an automobile, comprising: a wall portion surrounding the duct portion; and a cylindrical fitting portion provided at an open end of the duct portion and fitting between the connecting portion and the wall portion. (2) Utility Model Registration Scope of Claim 1. The automotive air-conditioning and heating system as set forth in claim 1, wherein the central portion of the duct portion is comprised of a telescopic bellows portion.