JP6601733B2 - Mounting structure of air conditioning duct for vehicles - Google Patents

Description

  The present invention relates to a mounting structure for an air conditioning duct for a vehicle.

Conventionally, an air conditioning duct for a vehicle such as an automobile includes a side vent duct and a side demister duct provided on the back side of the instrument panel. Since these side vent ducts and side demister ducts are attached to the instrument panel with screws or the like, it is necessary to provide mounting bosses at a plurality of locations in a narrow area of the instrument panel, which only increases the number of parts. In addition, the work man-hours increased and the cost was increased.
Moreover, since the side vent duct and the side demister duct made of resin are molded by a blow molding method in which it is difficult to manage the plate thickness, when the side vent duct and the side demister duct which are blow molded products are set together, Even if the contact setting is set at the time of designing, if the plate thickness of the actual side vent duct and side demister duct is thinner than the design, there is a possibility that a gap will be generated between the two ducts, which may cause rattling.

  Therefore, some conventional vehicle air conditioning ducts have a structure in which a side vent duct and a side demister duct are arranged in parallel on the back side of the instrument panel (see, for example, Patent Document 1). . Between the outer surface of these side vent ducts and the outer surface of the side demister duct, there is provided locking means for locking the two ducts in an intersecting state, and the locking means is provided at the tip of the side demister duct. It is arranged on the part side. In the vehicle air-conditioning duct having such a locking means, the side vent duct and the side demister duct can be locked to each other without using additional locking members such as bolts and screws. It has the advantage that the number of installation work steps is reduced. Moreover, since the latching means is arrange | positioned at the front-end | tip part side of the side demister duct, it has the advantage that positioning of the blower outlet of the said side demister duct becomes easy.

JP 2005-335628 A

  However, even in the conventional vehicle air conditioning duct described above, the side vent duct, the side demister duct, and the instrument panel have molding dimension tolerance in the vehicle width direction, and the positional accuracy can be increased toward the outside in the vehicle width direction. Since it is difficult, there is room for improvement in improving the assembly accuracy of the openings of the side vent duct and the side demister duct and the air conditioning outlet provided in the instrument panel.

  The present invention has been made in view of such a situation, and an object of the present invention is to improve the positional accuracy of the opening of the side vent duct and the side demister duct with respect to the air conditioning outlet of the instrument panel, and the side vent duct and the side demister. An object of the present invention is to provide a vehicle air-conditioning duct mounting part structure capable of improving the accuracy of the direction of air-conditioned air blown out from a duct and preventing deterioration in quality performance of the air-conditioning.

  In order to solve the above-described problems of the related art, the present invention includes a side vent duct and a side demister duct provided on the back side of an instrument panel, and the side vent duct is provided on a side provided on the instrument panel. In an attachment structure of a vehicle air conditioning duct connected to a vent outlet and the side demister duct connected to a side demister outlet provided in the instrument panel, the instrument panel includes an instrument panel body. There is a vehicle body panel mounting portion for mounting to the vehicle body panel, and a first engagement portion that protrudes toward the front side of the vehicle is provided on the rear surface of the peripheral edge of the side vent outlet. A peripheral edge of the opening has a first engaged portion that engages with the first engaging portion. And the first engaging portion and the first engaged portion are configured as a vent duct mounting portion, and a peripheral portion of the opening of the side demister duct projects to the rear side of the vehicle. 2 engagement portions are provided, and the second engagement portion is provided in the instrument panel main body in a state of passing through a second engaged portion provided in the flange portion of the side vent duct. The second engaging portion, the second engaged portion and the pedestal are configured as a demister duct mounting portion, and the vent duct mounting portion and the demister duct mounting portion are The vent duct mounting portion, the demister duct mounting portion, and the vehicle body panel mounting portion are arranged side by side on substantially the same straight line in the vehicle width direction.

  In the aspect of the invention, the side demister duct may include a first duct portion extending in parallel to the upper surface of the instrument panel body, and a second duct extending rearward of the vehicle while inclining toward the upper side of the vehicle. And the second engaging portion of the side demister duct is set at the same height as the first duct portion in the vehicle vertical direction.

  Furthermore, in one aspect of the present invention, the vehicle body panel mounting portion is located on the vehicle width direction outer side of the instrument panel body, and the vent duct mounting portion and the demister duct mounting portion are the side vent outlet. Is provided outside in the vehicle width direction.

As described above, the mounting structure of the vehicle air conditioning duct according to the present invention includes a side vent duct and a side demister duct provided on the back side of the instrument panel, and the side vent duct is provided on the instrument panel. The side demister duct is connected to a side demister outlet provided in the instrument panel, and the instrument panel is connected to the vehicle body panel. There is a vehicle body panel mounting portion for mounting, and a first engagement portion protruding toward the vehicle front side is provided on the rear surface of the peripheral portion of the side vent outlet, while the peripheral edge of the opening of the side vent duct The portion is provided with a flange portion having a first engaged portion that engages with the first engaging portion, The first engaging portion and the first engaged portion are configured as a vent duct mounting portion, and a second engaging portion that protrudes toward the vehicle rear side is formed at the peripheral edge of the opening of the side demister duct. The second engaging portion is engaged with a pedestal provided in the instrument panel body in a state of passing through a second engaged portion provided in the flange portion of the side vent duct. The second engagement portion, the second engaged portion, and the pedestal are configured as a demister duct attachment portion, and the vent duct attachment portion and the demister duct attachment portion are vehicles of the vehicle body panel attachment portion. Since the vent duct mounting portion and the demister duct mounting portion and the vehicle body panel mounting portion are arranged on the substantially same straight line in the vehicle width direction, the following effects are provided. Get Door can be.
That is, in the mounting portion structure of the present invention, the instrument panel main body is supported by the vehicle body panel via the vehicle body panel mounting portion, so that the instrument panel main body is located on the outer side in the vehicle width direction beyond the arrangement position of the vehicle body panel. The instrument panel is not displaced in the spreading direction, and the instrument panel can be reliably positioned. Further, since the side vent duct has a forming tolerance in the vehicle width direction, the first engagement portion of the instrument panel that engages with the first engaged portion in the flange portion of the side vent duct is the side The vent duct receives a force to move in the vehicle width direction. However, since the first engaging portion and the vehicle body panel mounting portion that constitute the vent duct mounting portion are arranged on the substantially same straight line in the vehicle width direction, the force that moves the side vent duct in the vehicle width direction. Is transmitted to the vehicle body panel mounting portion via the first engagement portion, the side vent duct can be firmly supported, and the position accuracy of the opening of the side vent duct can be improved. Similarly, since the second engaging portion and the vehicle body panel mounting portion constituting the demister duct mounting portion are arranged on substantially the same straight line in the vehicle width direction, the side demister duct is likely to spread outward in the vehicle width direction. The force to be transmitted is also transmitted to the vehicle body panel mounting portion via the second engagement portion, so that the side demister duct can be firmly supported and the position accuracy of the opening of the side demister duct can be improved.

  Therefore, according to the vehicle air-conditioning duct mounting portion structure of the present invention, the positional accuracy of the opening of the side vent duct and the side demister duct with respect to the air-conditioning outlet of the instrument panel can be improved. Air conditioning air sent from the demister duct can be blown out from the air conditioning outlet of the instrument panel toward the desired location on the vehicle interior side with high wind direction accuracy, and the temperature in the vehicle interior can be adjusted by the side vent duct and side demister duct. It is possible to improve the quality performance of air conditioning, such as removing fogging from doors and windows.

  In the aspect of the invention, the side demister duct may include a first duct portion extending in parallel to the upper surface of the instrument panel body, and a second duct extending rearward of the vehicle while inclining toward the upper side of the vehicle. Since the second engaging portion of the side demister duct is set at the same height position as the first duct portion in the vehicle vertical direction, the wobbling of the entire side demister duct Etc. can be efficiently suppressed. The reason is that the side demister duct is usually bent so that the opening is directed toward the side glass, and the middle part is unstable, so that the wobble of the side demister duct is suppressed, and the opening position of the side demister duct is increased. This is because it is necessary to maintain the accuracy.

  Furthermore, in one aspect of the present invention, the vehicle body panel mounting portion is located on the vehicle width direction outer side of the instrument panel body, and the vent duct mounting portion and the demister duct mounting portion are the side vent outlet. The side vent duct and side demister duct can be attached to the instrument panel body at a position close to the highly rigid vehicle body panel, and the mounting strength of the side vent duct and side demister duct can be increased. Can be increased.

It is the perspective view which looked at the vehicle right side of the instrument panel to which the attachment part structure of the air-conditioning duct for vehicles concerning the embodiment of the present invention is applied from the vehicle back. It is a perspective view showing the whole vehicle air-conditioning duct concerning the embodiment of the present invention. It is a perspective view which expands and shows the Z section in FIG. It is the perspective view which looked at the back side of the instrument panel in FIG. 1 from the vehicle front. FIG. 3 is a perspective view of a rear side of an instrument panel in a state where a side vent duct and a side demister duct of the vehicle air conditioning duct in FIG. 2 are attached as viewed from the front of the vehicle. It is the partial cross section perspective view which looked at the back side of the instrument panel in the state which attached the side vent duct and side demister duct in FIG. 5 from the vehicle side.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
FIGS. 1-6 shows the attachment part structure of the air conditioning duct for vehicles which concerns on embodiment of this invention. In the figure, the arrow Fr direction indicates the front of the vehicle, and the arrow O direction indicates the outer side in the vehicle width direction.

  As shown in FIGS. 1-6, the vehicle air-conditioning duct 1 which concerns on embodiment of this invention is provided in the back side (vehicle front side) of the instrument panel 2, and goes to the right-and-left both sides from the center part of a vehicle. A side vent duct 3 and a side demister duct 4 extending in the vehicle width direction are provided. The side vent duct 3 and the side demister duct 4 are cylindrical bodies that guide conditioned air sent from an air conditioner (not shown) and blow the air toward the vehicle interior R and door glass (not shown). Are bent toward the rear of the vehicle, and the openings 3a and 4a at the front end are arranged so as to face the vehicle interior R side. The side vent duct 3 is provided at an interval below the side demister duct 4 in the vehicle.

As shown in FIGS. 1 and 6, the opening 3a of the side vent duct 3 is connected to a side vent outlet 21 provided in the instrument panel 2, and the opening 4a of the side demister duct 4 is connected to the instrument panel. 2 is connected to a side demister outlet 22 provided in the main body 2. The side vent outlet 21 is provided at a central portion of the vertical wall surface 2a located on the outer side in the vehicle width direction of the instrument panel main body 2A constituting the instrument panel 2, and has a size corresponding to the opening 3a. It is formed into a shape. The side demister outlet 22 is provided near the vehicle interior R side of the upper surface 2b located on the vehicle width direction outer side of the instrument panel main body 2A, and a plurality of side demister outlets 22 are arranged in a region corresponding to the size of the opening 4a. It is formed by a rectangular long hole.
The vehicle air-conditioning duct 1 is further provided with a central vent duct 5 that is provided on the back side of the instrument panel 2 and extends in the vehicle width direction from the central portion of the vehicle toward both left and right side portions. 5 is connected to a central vent outlet 23 provided in the instrument panel 2.

As shown in FIGS. 1 and 4 to 6, the instrument panel 2 of the present embodiment is provided on the vehicle front side in the vehicle interior R, and is disposed over the entire width in the vehicle width direction. An instrument panel body 2A is provided. A steering support member 6 extending along the vehicle width direction is disposed inside the instrument panel main body 2A, and the instrument panel main body 2A is supported by the steering support member 6.
The instrument panel 2 has a vehicle body panel attachment portion 24 for attaching the instrument panel body 2A to the vehicle body panel 7 on the vehicle side. The vehicle body panel mounting portion 24 is formed in a flat plate shape facing the vehicle body panel 7, and is provided closer to the vehicle front side of the side portion located on the outer side in the vehicle width direction of the instrument panel body 2 </ b> A. Moreover, the vehicle body panel mounting portion 24 is provided with a bolt hole 24a through which the shaft portion of the fastening bolt 8 is inserted. Corresponding to this bolt hole 24a, a welding nut 71 screwed to the fastening bolt 8 is fixed to the vehicle body panel 7 side.

Furthermore, in the instrument panel main body 2A of the present embodiment, as shown in FIGS. 4 to 6, on the rear surface of the peripheral portion of the side vent air outlet 21, a first boss portion (first 1 engaging portion) 25 is integrally provided with a predetermined protruding length. On the other hand, as shown in FIGS. 2, 3, and 6, a plate-shaped flange portion 31 that projects obliquely upward toward the outer side in the vehicle width direction is provided at the peripheral edge of the opening 3 a of the side vent duct 3. The flange portion 31 is located below the outer periphery of the opening 4 a of the side demister duct 4. The flange portion 31 has a first engagement hole (first engaged portion) 32 that engages with the distal end portion of the first boss portion 25, and the first engagement hole 32 is , Provided below the flange portion 31.
Therefore, the side vent duct 3 is attached to the instrument panel main body 2A by inserting the front end portion of the first boss portion 25 into the first engagement hole 32 to be engaged therewith. That is, the first boss portion 25 and the first engagement hole 32 are configured as the vent duct attachment portion 11.

Further, as shown in FIGS. 2 to 4 and 6, a second boss formed in a pin shape protruding toward the vehicle rear side is provided on the lower surface side of the peripheral edge portion of the opening 4 a of the side demister duct 4. A portion (second engagement portion) 45 is integrally provided with a predetermined protruding length, and the second boss portion 45 has a function as a duct positioning portion. On the other hand, on the upper part of the flange portion 31 of the side vent duct 3, a second engagement hole (second engaged portion) 33 that penetrates the second boss portion 45 is spaced from the first engagement hole 32. Is provided. Moreover, in the instrument panel main body 2A, a pedestal 26 that protrudes toward the front side of the vehicle is integrally provided on the rear surface of the peripheral edge of the side vent outlet 21 with a predetermined protruding length. The pedestal 26 is formed in a bottomed cylindrical shape that engages with the second boss portion 45, and is arranged at a position above the first boss portion 25 and corresponding to the second boss portion 45. It is installed. In addition, a plurality of ribs 26a are formed on the outer peripheral surface of the pedestal 26 so as to extend in the vehicle front-rear direction and are arranged at regular intervals in the circumferential direction. The ribs 26a increase the rigidity of the pedestal 26. It has been.
Therefore, the side demister duct 4 allows the second boss portion 45 to pass through the second engagement hole 33 provided in the flange portion 31 of the side vent duct 3, and in this state, is inserted into the base 26 and engaged. By doing so, it is attached to the instrument panel main body 2A together with the side vent duct 3. That is, the second boss portion 45, the second engagement hole 33, and the pedestal 26 are configured as the demister duct attachment portion 12.

  Furthermore, in the attachment portion structure of the present embodiment, as shown in FIG. 5, the vent duct attachment portion 11 and the demister duct attachment portion 12 are disposed below the vehicle body panel attachment portion 24. That is, these attachment portions are arranged in the order of the vehicle body panel attachment portion 24, the demister duct attachment portion 12, and the vent duct attachment portion 11 from top to bottom in the vehicle vertical direction. Moreover, the vent duct attachment portion 11 and the demister duct attachment portion 12 and the vehicle body panel attachment portion 24 are arranged side by side on substantially the same straight line in the vehicle width direction as indicated by the vertical line X in FIG.

Further, as shown in FIGS. 2, 3, 5, and 6, the side vent duct 3 according to the present embodiment includes a straight portion 30a extending in the vehicle width direction, and a vehicle from the vehicle outer side portion of the straight portion 30a. The side vent duct 3 is formed so that the cross-sectional area of the side vent duct 3 is larger than the cross-sectional area of the side demister duct 4. On the other hand, the side demister duct 4 includes a first duct portion 41 that is arranged in parallel to the upper surface 2b of the instrument panel main body 2A and extends linearly in the vehicle width direction, and a tip portion of the side demister duct 4. It has a second duct portion 42 that is formed by bending and extends rearward from the front end portion of the first duct portion 41 while inclining toward the upper side of the vehicle. Moreover, the second boss portion 45 of the side demister duct 4 is set at the same height as the lower surface of the first duct portion 41 in the vehicle vertical direction as shown by the horizontal line Y in FIG. Therefore, the wobble of the entire side demister duct 4 can be suppressed.
The side demister duct 4 is arranged in a state where the first duct portion 41 at the middle portion is relatively long and unstable, and the second duct portion 42 as the tip portion is arranged so that the opening 4a faces the side glass side. Since it is bent, the position of the opening 4a of the side demister duct 4 is configured to be held with high accuracy.

  Further, as shown in FIGS. 1 and 4 to 6, the vehicle body panel mounting portion 24 of the present embodiment is located outside the instrument panel body 2 </ b> A in the vehicle width direction and above the side vent outlet 21. ing. The vent duct attachment portion 11 and the demister duct attachment portion 12 are provided outside the instrument panel main body 2A in the vehicle width direction and outside the side vent outlet 21 in the vehicle width direction. As a result, the side vent duct 3 and the side demister duct 4 are attached to the instrument panel main body 2A at a position close to the highly rigid vehicle body panel 7, and the attachment strength of the side vent duct 3 and the side demister duct 4 is increased. It is supposed to be.

In the mounting structure of the vehicle air-conditioning duct 1 according to the embodiment of the present invention, the instrument panel main body 2A constituting the instrument panel 2 is connected to the vehicle body panel 7 having the rigidity of the vehicle side portion via the vehicle body panel mounting portion 24. Since it is mounted and supported in a stable state, the instrument panel main body 2A is not moved in the direction of the vehicle width direction outside of the vehicle body panel 7, and the instrument panel 2 is reliably positioned. Can be done.
Further, the side vent duct 3 and the side demister duct 4 have a dimensional tolerance in the vehicle width direction, and the first engagement holes 32 and the first engagement holes provided in the flange portion 31 on the side vent duct 3 side. The first boss portion 25 on the instrument panel 2 side and the second boss portion 45 on the side demister duct 4 side that engage with the joint hole 3 and the pedestal 26 are molding tolerances of the side vent duct 3 and the side demister duct 4. The vent duct mounting portion 11 and the demister duct mounting portion 12 and the vehicle body panel mounting portion 24 are arranged on substantially the same straight line in the vehicle width direction even when receiving a force to move in the vehicle width direction. Therefore, the force to move the side vent duct 3 and the side demister duct 4 in the vehicle width direction is applied to the vehicle body panel mounting portion 24 and the vehicle body panel mounting portion 24 via the first boss portion 25 and the second boss portion 45. It is possible to convey to the body panel 7. As a result, the side vent duct 3 and the side demister duct 4 can be reliably supported, and the positional accuracy of the openings 3a and 4a of the side vent duct 3 and the side demister duct 4 can be improved.
That is, according to the mounting part structure of the vehicle air conditioning duct 1 of the present invention, the side vent duct 3 and the side demister duct 4 with respect to the side vent outlet 21 and the side demister outlet 22 which are the air conditioning outlets of the instrument panel 2 are provided. Since the positional accuracy of the openings 3a and 4a can be improved, the conditioned air sent through the side vent duct 3 and the side demister duct 4 from an air conditioner (not shown) is sent from the side vent outlet 21 and the side demister outlet 22 to the vehicle. The air can be blown out with high wind direction accuracy toward the indoor space or door glass located on the interior R side, and the temperature of the interior R of the vehicle interior R can be adjusted by the side vent duct 3 and the side demister duct 4 and fogging of the door glass and the like can be removed. Etc. can be performed quickly, and the quality performance of the air conditioning can be improved.

  While the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 Vehicle air-conditioning duct 2 Instrument panel 2A Instrument panel main body 2a Vertical wall surface 2b Upper surface 3 Side vent duct 3a Opening part 4 Side demister duct 4a Opening part 7 Car body panel 8 Fastening bolt 11 Vent duct attaching part 12 Demister duct attaching part 21 Side vent outlet 22 Side demister outlet 24 Body panel mounting portion 24a Bolt hole 25 First boss portion 26 Base 31 Flange portion 32 First engagement hole 33 Second engagement hole 41 First duct portion 42 First 2 duct part 45 2nd boss part 71 Weld nut R Car interior

Claims (3)

A side vent duct and a side demister duct provided on the back side of the instrument panel, wherein the side vent duct is connected to a side vent outlet provided in the instrument panel, and the side demister duct is connected to the instrument In the mounting part structure of the air conditioning duct for vehicles connected to the side demister outlet provided in the panel,
The instrument panel has a vehicle body panel mounting portion for mounting the instrument panel body to the vehicle body panel,
A first engagement portion that protrudes toward the front side of the vehicle is provided on the rear surface of the peripheral portion of the side vent outlet, while the first engagement portion is provided on the peripheral portion of the opening of the side vent duct. A flange portion having a first engaged portion to be engaged, and the first engaging portion and the first engaged portion are configured as a vent duct mounting portion,
A second engaging portion that protrudes toward the vehicle rear side is provided at a peripheral edge portion of the opening of the side demister duct, and the second engaging portion is provided in the flange portion of the side vent duct. The second engagement portion, the second engaged portion, and the pedestal are attached to a demister duct in a state where the second engagement portion, the second engaged portion, and the pedestal are engaged with a pedestal provided in the instrument panel main body. As a part,
The vent duct attachment portion and the demister duct attachment portion are disposed below the vehicle body panel attachment portion in the vehicle, and the vent duct attachment portion, the demister duct attachment portion, and the vehicle body panel attachment portion have a vehicle width. A mounting structure for an air conditioning duct for a vehicle, wherein the mounting structure is arranged on a substantially same straight line in a direction.   The side demister duct has a first duct portion that extends parallel to the upper surface of the instrument panel body, and a second duct portion that extends toward the rear of the vehicle while inclining toward the top of the vehicle. The mounting of the air conditioning duct for a vehicle according to claim 1, wherein the second engagement portion of the demister duct is set at the same height position as the first duct portion in the vehicle vertical direction. Part structure.   The vehicle body panel mounting portion is positioned on the vehicle width direction outer side of the instrument panel body, and the vent duct mounting portion and the demister duct mounting portion are provided on the vehicle width direction outer side of the side vent outlet. The mounting part structure for an air conditioning duct for a vehicle according to claim 1 or 2, wherein

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