JP4944805B2 - Member mounting structure to air duct - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a member attachment structure to an air duct in a vehicle air conditioner, and more particularly, to a member attachment structure to an air duct that can easily attach a member such as an aspirator in a small space while suppressing air leakage. About.

  An air duct in a vehicle air conditioner may be provided with an opening and a member attached from the outside. As such a member, for example, an aspirator for sucking air for detecting the temperature in the passenger compartment from the passenger compartment by using the air flow in the air duct of the vehicle air conditioner is known (for example, patent) Reference 1). The aspirator is, for example, attached to an opening of an air duct of a vehicle air conditioner, and is inserted into and connected to a diffuser portion having a bent shape that discharges air from the air duct through the opening. A nozzle unit that generates suction force by using negative pressure generated by the flow of air exhausted from the air duct at the throat of the diffuser unit, and sucks external air (in this case, vehicle interior air) by the suction force; It is structured into a structure. For example, one end of a hose is connected to the nozzle portion, and the other end of the hose is connected to, for example, a through hole formed in an instrument panel of a vehicle. Air from the inside of the vehicle is sucked from here and sucked by a sensor. The temperature of the passenger compartment air is measured.

  The aspirator as described above has been conventionally fixed to the air duct using a screw (for example, a tapping screw). However, when such a screw is used, not only the number of parts is increased, but it is also necessary to assemble in a narrow space, which requires additional man-hours. Further, the cost of the screw itself increases, and the weight of the screw itself increases. In addition, there is a problem that the weight increases due to the weight of the necessary screw mounting portion, and it is difficult to reduce the number of assembling steps and parts, reduce the cost, reduce the weight, or the like.

  On the other hand, in order to cope with the problem in the mounting structure using the screw as described above, a structure in which the aspirator as described above is mounted by a so-called one-touch method without using a screw is known. The following structure is known as a conventional one-touch aspirator mounting structure.

  First, as a conventional first mounting structure, an inner claw is provided inside the aspirator, particularly inside the diffuser part attached to the air duct, and the diffuser part is inserted into the opening (fitting hole) of the air duct. A method of fixing the diffuser part by rotating the diffuser part and engaging with a step provided on the air duct side is known. However, in such a mounting structure, since the engaging portion for fixing the aspirator is provided as an inner claw on the inner side of the diffuser portion, there is an advantage that the engaging structure on the air duct side can also be configured with a small space. On the other hand, there is a problem that it is necessary to give an insertion backlash to the diffuser portion attachment portion in the insertion direction, and it is difficult to suppress air leakage from the inside of the air duct at the attachment portion.

Also, as a conventional second mounting structure, after providing an outer claw outside the aspirator, particularly outside the diffuser part attached to the air duct, and inserting the diffuser part into the opening (fitting hole) of the air duct A method is known in which the diffuser part is fixed by rotating the diffuser part so that the outer claw is engaged with an engaging claw or the like provided outside the opening on the air duct side. However, in such a mounting structure, the engagement structure for fixing the aspirator is located outside the opening, so that the engagement state can be confirmed from the outside and no insertion direction play is required. While there is an advantage that air leakage from the inside of the air duct at the mounting portion can be suppressed, this air leakage is basically prevented by pressing the annular flange-like bottom surface on the aspirator side against the corresponding surface on the air duct side. Since it has a structure, it is necessary to set a large area of the bottom surface, and there is a problem that a space required for attaching and fixing the aspirator becomes large.
JP-A-5-155227

  Accordingly, an object of the present invention is to pay attention to the above-mentioned problems in the conventional one-touch type aspirator mounting structure, and to eliminate basically the play in the insertion direction of the member to be mounted on the air duct into the opening of the air duct. Even in such a state, it is possible to suppress air leakage from the inside of the air duct in the mounting portion, and to prevent the air leakage, the bottom surface portion on the mounting member side that is pressed against the corresponding surface on the air duct side An object of the present invention is to provide a member mounting structure to an air duct that can reduce the area and thereby reduce the space required for the mounting portion, and can achieve both air leakage suppression and space saving.

  In order to solve the above problems, a member mounting structure to an air duct according to the present invention is a member mounting structure to an air duct that is mounted by inserting a member into an opening formed in the air duct in a vehicle air conditioner. The opening of the air duct rises in a cylindrical shape outward from the air duct and forms a cylindrical space in the interior, and is provided on the inner surface of the standing wall toward the inside of the cylindrical space. A cylindrical wall that protrudes and has an inner wall that extends annularly over the entire circumference, and a notch formed in the inner edge of the inner wall so as to partially extend in the circumferential direction. A cylindrical wall that is inserted and fitted into the annular wall, and an annular ring that is provided on the outer peripheral surface of the cylindrical wall and that can be locked on the inner wall when the member is inserted and that can be guided in the circumferential direction on the inner wall Locking wall The cylindrical wall is partially provided on the outer peripheral surface in the circumferential direction, passes through the notch when the member is inserted, is inserted to the back surface of the inner wall, and is guided in the circumferential direction on the back surface of the inner wall after insertion. An arcuate engagement wall that is possible, and is provided on the outer peripheral surface of the cylindrical wall and is engaged with the top surface of the standing wall when the member is inserted, and is guided in the circumferential direction on the top surface of the standing wall after the member is inserted. It has the structure which has the outer nail | claw which can be comprised.

  In such a member mounting structure to the air duct, the cylindrical wall and the annular locking wall of the member are surrounded by the cylindrical standing wall and the annular inner wall on the air duct side, so that there is a small mounting space. In addition, it becomes possible to easily perform a desired seal between the member side and the air duct side, and the arc-shaped engagement wall inserted up to the back surface of the annular inner wall is engaged with the back surface side of the annular inner wall in a predetermined form. As long as it is done, it is possible to keep the air leak small. That is, in a state in which there is basically no play in the insertion direction of the member into the opening of the air duct, and the contact area between the annular locking wall on the member side and the annular inner wall on the air duct side is kept small Even so, it is possible to reduce air leakage. When the member is inserted, the outer claw on the member side is engaged with the top surface of the cylindrical vertical wall on the air duct side and is guided in the circumferential direction on the top surface of the vertical wall after the member is inserted. The position of the member can be held at a predetermined position by the claw and the arcuate engagement wall inserted to the back surface of the annular inner wall. The outer claw does not need to bend and extend to the position on the outer peripheral surface of the cylindrical vertical wall on the air duct side, but protrudes from the outer peripheral surface of the cylindrical wall of the member as long as it is engaged and guided by the top surface of the cylindrical vertical wall. Therefore, a large space is not required for the outer claw and the engagement structure using the outer claw. As a result, when the member is attached to the air duct, it is possible to achieve space saving of the attachment portion while suppressing air leakage.

  In the member mounting structure to the air duct according to the present invention, a step is formed on the top surface of the standing wall, and when the member is inserted, the outer claw is inserted until it engages with the lower part of the step, It is possible to adopt a structure in which the lower part of the step constitutes the guide surface of the outer claw when the member is inserted and rotated. With such a structure, it becomes possible to insert the member so that the outer claw is at a predetermined appropriate position, and the movement amount of the outer claw at the time of rotational assembly after inserting the member is within a desired range. It becomes possible to regulate the amount. In particular, the connection wall between the lower portion and the higher portion at one end of the lower portion of the step can be configured to function as a rotation direction stopper for the outer claw when the member is rotated and assembled. If comprised in this way, it will become possible to stop rotation of an outer nail in a predetermined position reliably by putting an outer nail on the connection wall of the low part and high part which function as a stopper. Positioning to a predetermined position can be easily performed. Further, it is also possible to have a configuration in which a raised portion on which the outer claw rides up immediately before reaching the rotation direction stopper when the outer claw is guided and rotated by the lower portion is provided at the lower portion of the step. is there. If comprised in this way, since an outer nail will ride on a raised part and will be positioned to the above-mentioned predetermined position immediately after passing through this raised part, when an outer nail reaches the predetermined position part, The outer claw is just fit into the predetermined position portion, and the positioning operation of the outer claw to the predetermined position is further facilitated.

  Further, a rotation direction that stops the rotation of the arcuate engagement wall on the inner surface of the standing wall immediately before or simultaneously with the rotation direction stopper when the outer claw is guided by the lower portion of the step and is rotated. A configuration in which a locking wall is provided is also possible. With this configuration, not only the rotation of the outer claw is stopped by the rotation direction stopper, but also the rotation operation of the arcuate engagement wall is stopped by the rotation direction locking wall. It is possible to reliably stop at a predetermined position. Therefore, the rotation of the entire member is stopped at two locations, and even when a rotational force larger than planned is applied to the member, excessive rotation is prevented and damage to the member is reliably prevented. Will be.

  Since the outer claw is provided so as to protrude on the outer peripheral surface of the cylindrical wall, it is preferable to have a reinforcing structure. As the reinforcing structure, for example, a structure in which the outer claw includes a rib extending in the member insertion direction can be employed. When the rib extending in the member insertion direction is provided, the outer claw is prevented from being damaged when the member is inserted, and the member is desirable when the member is rotated and the outer claw is positioned at a predetermined position after the insertion. It is also possible to prevent no tilting via the outer nails.

  The member in the present invention is preferably made of, for example, a resin. By constituting with a resin, a member having a predetermined shape can be easily manufactured by molding even if it is a relatively complicated member having a curved surface portion or the like. In addition, it is possible to easily give the desired elastic deformable performance even to a site where it is desirable to have a somewhat elastically deformable performance such as an outer claw.

  Moreover, an aspirator can be mentioned as said member in this invention, for example. For example, it has a diffuser part that discharges air from the inside of the air duct through the opening, and a nozzle part that is connected to the diffuser part and sucks external air by a suction force generated by a discharge air flow in the throat part of the diffuser part. Aspirator can be mentioned. In the case of such an aspirator, since a tube (or hose) for sucking external air is usually connected to the nozzle portion, the outer claw may be located on the side opposite to the nozzle portion. preferable. In this way, even if some external force is applied through the connecting tube and an undesired force acting in the direction of tilting the aspirator is applied, it is tilted by the drag through the external nail located on the opposite side of the tube. Can be prevented or suppressed.

  The nozzle portion of such an aspirator is configured to be communicated with, for example, the vehicle interior via a tube so that the air in the vehicle interior can be sucked. If comprised in this way, vehicle interior air for vehicle interior temperature detection can be suck | inhaled. If a temperature sensor is provided in the vehicle interior air intake path, the vehicle interior temperature can be easily detected.

  As described above, according to the member mounting structure to the air duct according to the present invention, in the one-touch type member mounting structure that does not use screws and requires only a small number of man-hours, the backlash in the insertion direction of the member into the opening of the air duct can be reduced. The air leakage is reduced in a state where the contact area between the annular locking wall on the member side and the annular inner wall on the air duct side is kept small and the space required for this part is kept small. Can be suppressed. Moreover, although it is an attachment structure of an outer nail engagement system, an outer nail does not need to extend on the outer peripheral surface of the cylindrical standing wall by the side of an air duct, but is required to be engaged and guided by the top surface of a cylindrical standing wall. Since it is only necessary to protrude from the outer peripheral surface of the cylindrical wall of the member, the outer claw and the engagement structure using the outer claw do not require a large space and can be configured compactly as a member mounting structure. Therefore, it is possible to realize a member attachment structure to the air duct that can efficiently achieve both the suppression of air leakage and the space saving of the attachment portion, and it is possible to provide an optimum structure for attaching the aspirator.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a member attachment structure 1 to an air duct according to an embodiment of the present invention, and particularly shows an attachment structure 1 when an aspirator 2 is used as an attachment member. 2 to 4 show the case of attaching the aspirator 2 in the order of operation in the attachment structure 1 of FIG. In this embodiment, the aspirator 2 is made of resin and has some elastic deformation characteristics depending on the part.

  In FIG. 1, an opening 4 is formed in an air duct 3 in a vehicle air conditioner. An aspirator 2 is inserted into the opening 4 as a member in the present invention, and is attached by a one-touch method without using screws. The aspirator 2 is connected to the diffuser portion 5 that discharges air from the air duct 3 through the opening 4 and the suction force that is connected to the diffuser portion 5 and generated by the exhaust air flow in the throat portion 6 of the diffuser portion 5 (by negative pressure). And a nozzle part 7 for sucking in external air (by suction force). From the tip 8 of the diffuser 5, the air sucked from the air duct 3 is discharged to the outside, and a tube 10 communicating with the vehicle interior is connected to one end 9 of the nozzle 7. By detecting the temperature of the passenger compartment air sucked through the tube 10 with a temperature sensor (not shown) provided in the air inlet passage, the passenger compartment temperature can be detected.

  The opening 4 of the air duct 3 rises in a cylindrical shape outward from the air duct 3 and forms a cylindrical space inside, and is provided on the inner surface of the standing wall 11 and inward of the cylindrical space. The inner wall 12 protrudes toward the periphery and extends in an annular shape over the entire circumference in the circumferential direction, and a structure having a notch 13 formed so as to partially extend in the circumferential direction on the inner edge of the inner wall 12. The diffuser part 5 of the aspirator 2 is provided on the outer peripheral surface of the cylindrical wall 14 to be inserted and fitted into the cylindrical standing wall 11 and is engaged with the inner wall 12 when the aspirator 2 is inserted. An annular locking wall 15 that can be stopped and guided in the circumferential direction on the inner wall 12, and a notch 13 that is partially provided on the outer circumferential surface of the cylindrical wall 14 in the circumferential direction and is inserted when the aspirator 2 is inserted. The aspirator 2 is provided on the outer peripheral surface of the cylindrical wall 14 and the arcuate engagement wall 16 that passes through the inner wall 12 and can be guided in the circumferential direction on the rear surface of the inner wall 12 after insertion. It has a structure having an outer claw 17 that is engaged with the top surface of the standing wall 11 during insertion and can be guided in the circumferential direction on the top surface of the standing wall 11 after the aspirator 2 is inserted.

  As shown in FIG. 2, a step is formed on the top surface of the standing wall 11. When the aspirator 2 is inserted, the outer claw 17 is inserted until it engages with the lower portion 18 of this step, and the lower portion of the step. 18 constitutes a guide surface for the outer claw 17 when the aspirator 2 is inserted and rotated. A connecting wall 20 (shown in FIGS. 2A, 3A, and 4A) between the lower portion 18 and the higher portion 19 at one end of the lower portion 18 of the step is inserted after the aspirator 2 is inserted. A rotation direction stopper of the outer claw 17 at the time of the rotation assembly is configured. Further, the lower portion 18 of the step has a raised portion on which the outer claw 17 rides immediately before reaching the rotation direction stopper (that is, the connection wall 20) when the outer claw 17 is guided by the lower portion 18 and rotated. 21 is provided. In this embodiment, the raised portion 21 is formed as a top surface of a rib 22 formed integrally with the standing wall 11 so as to extend along the outer surface of the standing wall 11. When the outer claw 17 moves over the raised portion 21 by rotational movement, the outer claw 17 is locked to the rotation direction stopper. Further, on the inner surface of the upright wall 11, the arcuate engagement wall 16 is rotated immediately before or at the same time as it hits the rotation direction stopper when the outer claw 17 is rotated by being guided by the lower portion 18 of the step. A rotation direction locking wall 23 (illustrated in FIGS. 2D, 3D, and 4D) is provided.

  In this embodiment, the outer claw 17 is located on the side opposite to the nozzle portion 7 of the aspirator 2, that is, on the side opposite to the tube 10 connection side to the nozzle portion 7. The outer claw 17 includes a rib 24 extending in the insertion direction A of the aspirator 2 on the upper surface side, and is reinforced by the rib 24.

  The aspirator 2 is attached to the opening 4 of the air duct 3 by a so-called one-touch operation without using screws or the like, that is, in the operation order as shown in FIGS. It will be fixed in the state after installation. 2 shows a state before the aspirator 2 is inserted into the opening 4. FIG. 2A is a perspective view, and FIGS. 2B to 2D are perspective views of FIG. The top view seen from the upper surface side of the aspirator 2, the side view seen from the nozzle part 7 side of the aspirator 2, and the bottom view seen from the back surface side of the opening part 4, respectively are shown. FIG. 3 shows a state in which the aspirator 2 is inserted into the opening 4. FIG. 3A is a perspective view, and FIGS. 3B to 3D are states shown in the perspective view of FIG. The top view seen from the upper surface side of the aspirator 2, the side view seen from the nozzle part 7 side of the aspirator 2, and the bottom view seen from the back surface side of the opening part 4 are each shown. 4 shows a state in which the aspirator 2 is rotated after being inserted into the opening 4, FIG. 4 (A) is a perspective view, and FIGS. 4 (B) to 4 (D) are perspective views of FIG. 4 (A). The top view seen from the upper surface side of the aspirator 2 of the state shown, the side view seen from the side surface side of the aspirator 2, and the bottom view seen from the back surface side of the opening part 4, respectively are shown.

  The operation sequence shown in FIGS. 2 to 4 will be described with reference to FIG. 1. First, in FIG. 2, the aspirator 2 is positioned on the opening 4 of the air duct 3 in a predetermined posture. Then, as shown in FIG. 3, the lower end side of the cylindrical wall 14 of the aspirator 2 is inserted into the standing wall 11 of the opening 4. At this time, the arcuate engagement wall 16 passes through the notch 13 formed in the inner wall 12 and is inserted to the back surface side of the inner wall 12, the annular engagement wall 15 is locked to the upper surface of the inner wall 12, and the outer claw 17 Is locked to the lower portion 18 of the top surface of the cylindrical wall 14. In this inserted state, as shown in FIG. 4, the aspirator 2 is rotated approximately 90 degrees in this embodiment. During this rotation, the arcuate engagement wall 16 is pulled into the back side of the inner wall 12 to prevent the aspirator 2 from coming off from the opening 4 and the arcuate engagement wall 16 is locked in the rotational direction at the end position of the rotation operation. It is locked to the wall 23 and stopped at a predetermined position, and excessive rotation operation is prevented.

  At the same time, the annular engagement wall 15 is guided in the circumferential direction on the inner wall 12 while being kept in contact with the inner wall 12, and a predetermined sealing state (air leakage prevention state) is maintained during this rotation. At this time, the outer peripheral surface of the annular engagement wall 15 is maintained in a minute gap with respect to the inner peripheral surface of the standing wall 11 or is substantially kept in a sliding contact state. Prevention state) is also maintained. Therefore, the air leak in the state where the aspirator 2 is attached is caused by contact between the annular engagement wall 15 and the inner wall 12 and a slight gap or substantial sliding between the outer peripheral surface of the annular engagement wall 15 and the inner peripheral surface of the standing wall 11. It is suppressed by both of the contact states, and a large space is not required in both of these portions, and therefore a good air leakage prevention or suppression structure is achieved in a small space.

  Further, at the time of the rotation, at the same time, the outer claw 17 is guided in the circumferential direction while being slidably contacted on the lower portion 18 of the top surface of the standing wall 11, and cooperates with the arcuate engagement wall 16 that has been recessed into the back side of the inner wall 12. Thus, the posture of the aspirator 2 is maintained in a predetermined posture. The outer claw 17 that is rotated on the lower portion 18 eventually rides on the raised portion 21, then gets over the raised portion 21, and at that position, the connecting wall 20 (rotation direction stopper) between the lower portion 18 and the higher portion 19. ) Is stopped at a predetermined position, and the attachment of the aspirator 2 is completed. The outer claw 17 only needs to be guided on the top surface of the standing wall 11, and does not need to bend and extend to the outer peripheral surface of the standing wall 11, so that the outer claw 17 is provided. There is no need for a large space.

  As a result, it is possible to efficiently achieve both the suppression of air leakage and the space saving of the mounting portion, while the mounting structure of the one-touch type aspirator 2 that does not use screws. If a tube 10 communicating with the vehicle interior is connected to one end 9 of the nozzle portion 7 of the aspirator 2 as described above, the temperature of the vehicle interior air sucked through the tube 10 (that is, the vehicle interior temperature). ) Can be detected efficiently. Also, external force is likely to be applied to the aspirator 2 on the connection side of the tube 10, but if the rigidity of the outer claw 17 that is positioned on the opposite side to the connection side of the tube 10 is increased, for example, a rib 24 is provided. If this is done, an appropriate resistance can be exerted at the engaging portion of the outer claw 17 against the external force as described above, whereby the posture of the aspirator 2 can be maintained at a predetermined posture, and the outer claw 17 itself can be damaged. Can be reinforced so that there is no.

  Thus, it becomes possible to attach the aspirator 2 by the one-touch method in a state where air leakage is appropriately suppressed in a small space. In the above embodiment, the case where the attachment member is the aspirator 2 has been described. However, the present invention can be applied to attachment members other than the aspirator 2.

  The member attachment structure to the air duct according to the present invention can be applied to any member attachment portion that is required to be attached to the opening portion of the air duct in the vehicle air conditioner.

It is a longitudinal cross-sectional view of the member attachment structure to the air duct which concerns on one embodiment of this invention. FIG. 2 shows a state of the structure of FIG. 1 before insertion into the opening of the aspirator, FIG. 2 (A) is a perspective view, FIG. 2 (B) is a top view as seen from the upper surface side of the aspirator, FIG. FIG. 2D is a side view seen from the nozzle part side of the aspirator, and FIG. 2D is a bottom view seen from the back side of the opening. FIGS. 3A and 3B show a state in which the aspirator in the structure of FIG. 1 is inserted into the opening, FIG. 3A is a perspective view, FIG. 3B is a top view seen from the upper surface side of the aspirator, and FIG. The side view seen from the nozzle part side of FIG. 3, FIG.3 (D) is the bottom view seen from the back surface side of the opening part. 4 shows a state in which the aspirator in the structure of FIG. 1 is rotated after being inserted into the opening, FIG. 4 (A) is a perspective view, FIG. 4 (B) is a top view as seen from the top side of the aspirator, FIG. C) is a side view seen from the side of the aspirator, and FIG. 4D is a bottom view seen from the back side of the opening.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Attachment structure at the time of using an aspirator as an attachment member 2 Aspirator 3 Air duct 4 Opening part 5 Diffuser part 6 Diffuser part throat part 7 Nozzle part 8 Diffuser part tip part 9 Nozzle part one end part 10 Tube 11 Standing wall 12 Inner wall 13 Notch 14 Cylindrical wall 15 Annular locking wall 16 Arc-shaped engaging wall 17 Outer claw 18 Lower part 19 Higher part 20 Connection wall 21 Raised part 22 Rib 23 Rotating direction locking wall 24 Outer claw rib

Claims (11)

  A member mounting structure for mounting an air duct by inserting a member into an opening formed in an air duct in a vehicle air conditioner, wherein the opening of the air duct is formed in a cylindrical shape outward from the air duct. A standing wall that forms a cylindrical space inside the rising wall, an inner wall that is provided on the inner surface of the standing wall and projects inwardly of the cylindrical space and extends in an annular shape over the entire circumference, and circumferentially on the inner edge of the inner wall A cylindrical wall that is inserted and fitted into the cylindrical standing wall, and an outer peripheral surface of the cylindrical wall. An annular locking wall that is locked on the inner wall and can be guided in the circumferential direction when the member is inserted, and is provided partially on the outer circumferential surface of the cylindrical wall in the circumferential direction. The notch when inserting a member An arc-shaped engagement wall that can be inserted through the inner wall to the back surface of the inner wall and can be guided in the circumferential direction on the back surface of the inner wall after insertion, and provided on the outer peripheral surface of the cylindrical wall and when the member is inserted A member for an air duct, characterized in that it has a structure having an outer claw that is engaged with the top surface of the standing wall and that can be guided in the circumferential direction on the top surface of the standing wall after inserting the member. Mounting structure.   A step is formed on the top surface of the upright wall, and when the member is inserted, the outer claw is inserted until it engages with the lower portion of the step. The member attachment structure to the air duct according to claim 1, constituting a guide surface of the claw.   The air duct according to claim 2, wherein a connection wall between the lower portion and the higher portion at one end of the lower portion of the step constitutes a rotation direction stopper of the outer claw at the time of rotational assembly after the member is inserted. The member mounting structure.   The raised portion on which the outer claw rides up immediately before reaching the rotation direction stopper when the outer claw is guided and rotated by the lower portion is provided at the lower portion of the step. Member mounting structure to the air duct.   A rotation direction mechanism that stops the rotation of the arcuate engagement wall on the inner surface of the standing wall immediately before or simultaneously with the rotation direction stopper when the outer claw is guided by the lower portion of the step and is rotated. The member attachment structure to the air duct according to claim 3 or 4, wherein a stop wall is provided.   The member attachment structure to the air duct according to any one of claims 1 to 5, wherein the outer claw includes a rib extending in a member insertion direction.   The member attachment structure to the air duct according to any one of claims 1 to 6, wherein the member is made of resin.   A diffuser part for discharging the air from the air duct through the opening; and a nozzle part connected to the diffuser part for sucking external air by a suction force generated by a discharge air flow in the throat part of the diffuser part; The member attachment structure to the air duct in any one of Claims 1-7 which consists of an aspirator which has.   The member attachment structure to the air duct according to claim 8, wherein the outer claw is located on a side opposite to the nozzle portion.   The member attachment structure to an air duct according to claim 8 or 9, wherein the nozzle portion of the aspirator is communicated with a vehicle interior via a tube and sucks air in the vehicle interior.   The member mounting structure to the air duct according to claim 10, wherein a temperature sensor is provided in an air intake path of the passenger compartment air.

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