JP2011225053A - Ventilation structure of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation structure of a vehicle capable of reducing the cost and weight by optimizing a configuration of a ventilator according to a vehicle type.SOLUTION: The ventilation structure of the vehicle is installed in a ventilating opening 102a provided in a vehicle rear panel 102 inside a rear bumper 104, and includes the ventilator 110 for emitting air inside the vehicle interior through the ventilating opening. In the ventilator, a ventilator valve 130 for opening/closing by the operation of negative pressure generated outside the ventilator is mounted. The ventilator includes: a ventilator base 120 installed in the ventilating opening; and a frame-shaped ventilator duct 150 having an opening 150a on a surface opposite to the surface mounted in the ventilator base.

Description

  The present invention relates to a vehicle ventilation structure including a ventilator that discharges air in a vehicle compartment.

  In order to promote ventilation in the passenger compartment, the vehicle is provided with a ventilator that is a ventilation device. The ventilator is attached to a ventilation port provided in the rear panel of the vehicle body inside the rear bumper, and exhausts the air in the vehicle interior to the outside through the ventilation port.

  As a ventilator, for example, Patent Document 1 discloses a ventilator outlet portion having a ventilation window, a thin-film valve portion that covers the ventilation window and opens the ventilation window by the action of air pressure, and surrounds the valve portion and the ventilator outlet portion. There is disclosed a vehicle ventilation structure equipped with a ventilation device having a duct portion having a discharge port in a direction. According to the ventilation structure of Patent Document 1, ventilation performance can be suitably maintained even when running on a snowy road. Further, according to the ventilation structure of Patent Document 1, even when water enters the rear bumper during rainy weather driving or car washing, it is possible to reliably prevent the water from entering the ventilation opening.

JP 2005-81882 A

  Certainly, according to the ventilator provided in the ventilation structure of the vehicle described in Patent Document 1, the adverse effect on the ventilation performance due to the snow rolled up on the snowy road is extremely reliably prevented, and the water enters the ventilation opening. Can also be suitably prevented. However, such a ventilator is not necessarily required for all vehicle types. For example, when the ventilation port is provided at a position that is considerably away from the tire, or when a member that can repel the rolled up snow is provided below the ventilator, Adhesion to the ventilator valve and entry into the ventilation port can be suitably prevented without depending on the ventilator of Patent Document 1. Further, for example, if the vehicle model has a countermeasure against water intrusion into the rear bumper, the large duct portion as in Patent Document 1 is not necessary. Therefore, in such cases, the ventilator is not a sufficient measure against the rolling up of snow or the like and the ingress of water, but reduction of its cost and weight reduction have been strongly desired.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle ventilation structure capable of reducing the cost and weight by optimizing the configuration of the ventilator according to the vehicle type. .

  In order to solve the above problems, a typical configuration of a vehicle ventilation structure according to the present invention is attached to a ventilation port provided in a rear panel of a vehicle body inside a rear bumper, and exhausts air in the vehicle interior through the ventilation port. A ventilator structure of a vehicle including a ventilator, wherein the ventilator is attached with a ventilator valve that opens and closes due to a negative pressure generated outside the ventilator, and is attached to the ventilator base, and the ventilator base is attached to the ventilator base. A frame-shaped ventilator duct having an opening on a surface opposite to a surface attached to the housing.

  According to the said structure, the main-body part of a ventilator is comprised from two components of the ventilator base with which a ventilator valve is attached and with which a ventilation opening is mounted | worn, and the ventilator duct which is a duct part of a ventilator. The ventilator duct is attached to the ventilation port via the ventilator base. This makes it possible to share the ventilator base and change only the ventilator duct as appropriate. Therefore, the configuration of the ventilator can be optimized according to the vehicle type, and the cost can be reduced and the weight can be reduced. In addition, according to such a configuration, when sufficient measures are taken against the hoisting of snow or the like and the ingress of water in the rear bumper, it is possible to select not to provide a duct, that is, a ventilator duct. Cost reduction and weight reduction can be achieved. Furthermore, by making the ventilator duct a simplified shape called a frame shape as described above, the cost required for the ventilator duct can be reduced and the weight can be reduced, and the structure of the mold can be simplified. It is possible to reduce the cost required for this.

  One of the ventilator base and the ventilator duct has a claw protruding from the outer peripheral surface near the end on the side in contact with the other, and the other has a claw near the end on the side in contact with the other. It is good to have the engaging part engaged with a part.

  According to this structure, a ventilator duct can be attached to a ventilator base only by engaging an engaging part with a nail | claw part. This eliminates the need for parts required for mounting and simplifies the production process. Therefore, further cost reduction and weight reduction can be achieved.

  The edge of the opening of the ventilator duct may be closer to the ventilation opening as it goes downward from above. Thus, the lower surface of the ventilator duct is covered with the upper surface, and the upper surface of the ventilator duct plays a role as a bag. Therefore, even if water enters the rear bumper and reaches the upper surface of the ventilator duct, the water falls downward from the edge of the upper surface. For this reason, it is possible to prevent water from entering the ventilator duct, and thus to prevent water from entering the ventilation port.

  A flange protruding downward may be provided on the upper edge of the opening of the ventilator duct. As a result, water drainage at the upper edge of the opening is further improved, so that it is possible to more reliably prevent water from entering the ventilator duct.

  Ribs that protrude upward and extend in the depth direction of the ventilator duct may be provided on the upper surface of the ventilator duct in the vicinity of both sides in the width direction. Thereby, the water that has been transmitted to the upper surface of the ventilator duct is blocked by the ribs, moves toward the upper edge of the opening of the ventilator duct, and falls downward therefrom. Therefore, water does not travel along the side edge of the opening, and water can be suitably prevented from entering the ventilator duct from the side edge.

  The ribs may be provided so as to continuously extend from the upper surface of the ventilator duct to the rear surface of the flange and the tip of the rear surface. Thereby, it can prevent that the water which flowed to the upper edge of the opening part by the rib moves to the side edge side of a ventilator duct in a flange. In addition, since the rib extends to the tip of the rear surface of the flange, the water that has traveled along the rib can easily fall downward, so that water can be improved in the rib.

  A drainage hole is formed between the lower surface of the ventilator duct and the ventilator base. The ventilator base overlaps the top and bottom of the ventilator duct and has a gap between the ventilator duct at least in the height direction. A part may be formed.

  According to such a configuration, even if water enters the ventilator duct, the water is discharged from the drain hole. Therefore, it is possible to more reliably prevent water from entering the ventilation port. In addition, because the protrusions formed on the ventilator base overlap the top and bottom of the ventilator duct, it is possible to prevent water from entering the drainage holes from below, and more reliable measures to prevent water from entering the ventilator duct. Can be.

  On the ventilator base side of the lower surface of the ventilator duct, a staircase portion is provided that extends downward and inclines downward on the rear side of the projecting portion, and extends so as to overlap the projecting portion. It is good to form between the front-end | tip and ventilator base.

  Thereby, when water infiltrates into the ventilator duct, the water flows along the staircase portion and is guided outside the duct opening. That is, since the water flow path can be formed by the staircase portion, the discharge of water can be promoted more suitably.

  Said protrusion part is good in it being the staircase shape extended so that it may overlap with a ventilator duct up and down, after inclining below in the front side rather than a ventilator duct. As described above, even when the projecting portion, that is, the ventilator base is provided with a staircase shape, the same effect as that obtained when the staircase portion is provided in the ventilator duct as described above can be obtained.

  The distance from the above vent is the order of the free end of the ventilator valve when fully open, the end of the bottom surface of the ventilator duct, the end of the top surface of the ventilator duct, or the free end of the ventilator valve and the bottom surface of the ventilator duct when fully open It is good to become large in order of the edge part of this, and the edge part of the upper surface of a ventilator duct.

  According to the above configuration, the distance from the ventilation port to the end of the upper surface of the ventilator duct is larger than the distance from the ventilation port to the end of the lower surface of the ventilator duct. In other words, the upper surface of the ventilator duct has a greater depth than the lower surface. For this reason, the water which fell from the edge part of the upper surface does not reach the lower surface. Therefore, it is possible to suitably prevent water from entering the ventilator duct. The distance from the ventilation port to the end of the upper surface of the ventilator duct is larger than the free end of the ventilator valve when fully open. Therefore, even if the ventilator valve is fully opened, the water that has dropped from the end of the upper surface does not contact the ventilator valve. For this reason, water droplets do not adhere to the ventilator valve, and it is possible to prevent water from entering the ventilation port via the ventilator valve.

  ADVANTAGE OF THE INVENTION According to this invention, the ventilation structure of the vehicle which can aim at reduction of cost and weight reduction can be provided by optimizing the structure of a ventilator according to a vehicle type.

It is a figure showing the schematic structure of the ventilation structure of vehicles concerning this embodiment. It is an external view of the ventilator provided in the ventilation structure of the vehicle concerning this embodiment. It is a disassembled perspective view of the ventilator shown in FIG. It is sectional drawing of the ventilator shown in FIG. It is a figure which shows the other shape of the ventilator base and ventilator duct in the drain hole vicinity.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

(Ventilation structure of the vehicle of this embodiment)
FIG. 1 is a diagram illustrating a schematic configuration of a vehicle ventilation structure according to the present embodiment. The vehicle ventilation structure according to the present embodiment includes a ventilator that is a ventilation device that exhausts air in the vehicle interior. As shown in FIG. 1, a ventilation hole 102 a is provided in a portion of the vehicle body rear panel 102 where the rear bumper 104 is mounted, that is, the vehicle body rear panel 102 inside the rear bumper 104. The ventilator 110 is attached to the ventilation port 102a and discharges the air in the vehicle interior to the outside through the ventilation port 102a.

  2 is an external view of the ventilator 110 provided in the vehicle ventilation structure according to the present embodiment, FIG. 2 (a) is an external perspective view of the ventilator 110, and FIG. 2 (b) is a side view of the ventilator 110. It is. 3 is an exploded perspective view of the ventilator 110 shown in FIG. 2, FIG. 3A is an exploded view of all the members constituting the ventilator 110, and FIG. 3B is a diagram of the members constituting the ventilator 110. FIG. 4 is a cross-sectional view taken along the line 110 shown in FIG. 2, FIG. 4 (a) is a cross-sectional view taken along the line AA in FIG. 2, and FIG. 4 (b) is a cross-sectional view taken along the line BB in FIG.

  As shown in FIGS. 2 and 3, the main body of the ventilator 110 is composed of two parts, a ventilator base 120 and a ventilator duct 150. A ventilator duct 150 is attached to the ventilator base 120 and is supported by the ventilator base 120. With this configuration, the entire ventilator 110 is attached to the ventilation port 102a. The ventilator base 120 is provided with a hooking portion 122, and the ventilator valve 130 is supported by the ventilator base 120 by hooking the ventilator valve 130 to the hooking portion 122.

  The ventilator base 120 has a claw portion 124 protruding from the outer peripheral surface on the side attached to the ventilation port 102a. The ventilator base 120 (ventilator 110) can be attached to the ventilation port 102a by fitting the claw portion 124 into a groove (not shown) provided in the vicinity of the ventilation port 102a. Further, in the present embodiment, the ventilator base 120 has an engaging portion 126 that engages with the claw portion 152 of the ventilator duct 150 in the vicinity of the end portion on the side in contact with the ventilator duct 150.

  As shown in FIGS. 3 and 4A, the ventilator base 120 of the present embodiment is formed with a protruding portion 128. The protrusion 128 overlaps the top and bottom of the staircase portion 158 formed in the ventilator duct 150, and has gaps 158a and 158b between the ventilator duct 150 in the height direction and the front-rear direction.

  As shown in FIG. 3, the ventilator valve 130 is a member that is attached to the ventilator base 120 so as to face the ventilation port 102a, and opens and closes due to the negative pressure generated outside the ventilator 110 (inside the rear bumper 104). . A polymer resin material such as rubber can be suitably used for the ventilator valve 130. Thereby, since the weight of the ventilator valve 130 can be reduced, the force required for the opening operation can be reduced, and the opening / closing operation can be made smooth.

  When the inside of the rear bumper 104 shown in FIG. 1 becomes negative pressure, the ventilator valve 130 shown in FIG. 4A is moved into the ventilator duct 150 with the hooking portion 122 as an axis (in the direction of the arrow 130a). To the position of the two-dot chain line 130b. As a result, the ventilator 110 is opened, and the air in the vehicle interior flows out into the ventilator 110 and is discharged outside the vehicle interior through the opening 150a of the ventilator duct 150. In this way, the vehicle interior is ventilated.

  In the present embodiment, a total of two ventilator valves 130, one row and two columns, are provided. However, the present invention is not limited to this, and the present invention is not limited to this. A plurality of sheets may be provided in the width direction and the vehicle height direction, and six or more sheets may be configured. Further, a plurality of ventilator valves 130 are not necessarily provided, and may be constituted by one. However, if a plurality of ventilator valves 130 are provided as in the present embodiment, even if the ventilator valve 130 is flexible and easily deformed, the deformation of one ventilator valve 130 does not affect the other ventilator valves 130. The amount of deformation can be reduced. Therefore, the ventilator valve 130 can reliably exert its function, and high ventilation performance can be ensured.

  As shown in FIGS. 1 to 3, the water stop seal 140 is attached to the outer peripheral surface of the ventilator base 120 on the ventilation port 102 a side to prevent water from entering between the ventilation port 102 a and the ventilator base 120. It is a member, that is, a packing. The water stop seal 140 is made of an elastic material. As such an elastic material, for example, a rubber material or a silicon resin material can be suitably used.

  Among the members shown in FIG. 3A, the above-described ventilator valve 130 is hooked on the hooking portion 122 of the ventilator base 120, and the water stop seal 140 is attached to the outer peripheral surface of the ventilator base 120. Then, the ventilator base 120 is in the state shown in FIG.

  As shown in FIG. 2 or FIG. 3, the ventilator duct 150 is a frame-shaped member attached to the ventilator base 120. The ventilator duct 150 has an opening 150 a on the surface opposite to the surface attached to the ventilator base 120. Through the opening 150a, the air in the vehicle compartment exhausted from the ventilation port 102a through the ventilator valve 130 is exhausted outside the vehicle. The ventilator duct 150 also plays a role of preventing snow, rainwater, and the like rolled up during traveling of the vehicle from entering the ventilation port 102a.

  As described above, in the present embodiment, the main body portion of the ventilator 110 excluding ancillary members such as the ventilator valve 130 and the water stop seal 140 is composed of two parts, the ventilator base 120 and the ventilator duct 150. In other words, in the ventilator 110, the ventilator duct 150 responsible for exhausting air is a separate member from the ventilator base 120 attached to the ventilation port 102a and supporting the entire ventilator 110. With such a configuration, it is possible to make the ventilator base 120 common even in different vehicle types, and to change only the ventilator duct 150 as appropriate. In other words, the configuration of the ventilator 110 can be optimized according to the vehicle type, and the cost can be reduced and the weight can be reduced.

  In addition, since the ventilator duct 150 has a simplified shape called a frame shape, the cost required for the ventilator duct 150 can be reduced and the weight can be reduced. Thereby, since the structure of the mold can be simplified, the cost required for the mold can be reduced.

  As shown in FIG. 2 or FIG. 3, the ventilator duct 150 has a claw portion 152 protruding from the outer peripheral surface in the vicinity of the end portion on the side in contact with the ventilator base 120. Accordingly, the engagement portion 126 is bent and engaged with the claw portion 152 simply by lightly pressing the ventilator duct 150 into the ventilator base 120 shown in FIG. As shown in FIG. 2, the ventilator 110 can be assembled by attaching the ventilator duct 150 to the ventilator base 120. That is, in this embodiment, the ventilator base 120 and the ventilator duct 150 (ventilator 110) are assembled by snap fit. Accordingly, parts for attaching the ventilator duct 150 to the ventilator base 120 are not necessary, and the production process can be simplified, so that further cost reduction and weight reduction can be achieved.

  In the present embodiment, the engaging portion 126 is provided on the ventilator base 120 and the claw portion 152 is provided on the ventilator duct 150. However, the present invention is not limited to this, and an opposite configuration may be used. Furthermore, the above-described assembly by snap fitting is merely an example, and the ventilator 110 may be assembled by screwing the ventilator duct 150 and the ventilator base 120 together.

  As described above, the ventilator duct 150 according to the present embodiment can contribute to cost reduction due to the simplified shape, but still plays a role of preventing water from entering the ventilation port 102a. There is no change in being. In order to reliably prevent water from entering the ventilation port 102a, it is necessary to prevent water from entering the ventilator duct 150, and even if water enters the ventilator duct 150, it must be able to be discharged quickly. Therefore, various ideas are applied to the shape of the ventilator duct 150 of the present embodiment.

  Specifically, first, the edge 150b of the opening 150a of the ventilator duct 150 approaches the ventilation port 102a (to the ventilation port 102a side) as it goes from the upper side to the lower side as shown in FIG. 2B. . Thereby, the lower surface 150d of the ventilator duct 150 is covered with the upper surface 150c, and the upper surface 150c of the ventilator duct 150 plays a role as a bag. Therefore, even if the water that has entered the rear bumper 104 travels down to the upper surface 150c of the ventilator duct 150 from the edge as shown by the arrow 160 in FIG. 4 (a), the ventilator duct does not contact the lower surface 150d. It will fall further out of 150. For this reason, infiltration of water into the ventilator duct 150 is prevented, and as a result, infiltration into the ventilation port 102a can be prevented.

  When the edge 150b of the opening 150a is made to approach toward the ventilation port 102a as described above, the distance from the ventilation port 102a is as follows: the free end of the ventilator valve 130 when fully opened, the ventilator duct 150 The size increases in the order of the end of the lower surface 150d and the end of the upper surface 150c of the ventilator duct 150. Alternatively, the free end of the ventilator valve 130 when fully opened, the end of the lower surface 150d of the ventilator duct 150, and the end of the upper surface 150c of the ventilator duct 150 may be increased in this order. In other words, as shown in FIG. 4A, the distance from the vent 102a to the end of the upper surface 150c of the ventilator duct 150 is D1, and the distance from the vent 102a to the end of the lower surface 150d of the ventilator duct 150 is When D2, the distance from the ventilation port 102a to the free end of the ventilator valve 130 when fully opened, is D3, D1, D2, and D3 may satisfy the relational expression “D1> D2 ≧ D3”.

  In the above relational expression, when “D1> D3” is satisfied, the end portion of the upper surface 150c of the ventilator duct 150 is located outside the free end of the ventilator valve 130 when fully opened. Therefore, even if the ventilator valve 130 is fully opened (the position of the two-dot chain line 130b in FIG. 4A), the water dropped from the end of the upper surface 150c does not contact the ventilator valve 130. Water drops do not adhere. For this reason, it is possible to prevent water from entering the ventilation port 102a via the ventilator valve 130. When “D1> D2” is satisfied, the upper surface 150c of the ventilator duct 150 has a larger dimension than the lower surface 150d, and the end portion of the upper surface 150c is located outside the end portion of the lower surface 150d. Therefore, water that has dropped from the end of the upper surface 150c does not reach the lower surface 150d, and water can be suitably prevented from entering the ventilator duct 150. Further, when the above-mentioned “D2 ≧ D3” is satisfied, the lower surface 150d of the ventilator duct 150 is positioned below the ventilator valve 130 that has been opened. For this reason, it becomes possible to suitably prevent water from adhering to the ventilator valve 130 from below and water from entering the ventilation port 102a when the ventilator valve 130 is fully opened.

  Subsequently, a flange 154 protruding downward is provided at the upper edge of the opening 150 a of the ventilator duct 150, that is, the edge of the upper surface 150 c of the ventilator duct 150. Thereby, the water that has traveled along the upper surface of the ventilator duct 150 travels directly through the flange 154 and reaches the lower end (edge) thereof. Then, gravity acts favorably on the water and falls downward from the end of the flange 154. For this reason, it is possible to improve water drainage at the upper edge of the opening 150a.

  Further, on the upper surface 150 c of the ventilator duct 150, ribs 156 that protrude upward and extend in the depth direction of the ventilator duct 150 are provided in the vicinity of both sides in the width direction. As a result, the water transmitted to the upper surface 150c of the ventilator duct 150 as shown by the arrow shown in FIG. 2A is blocked by the ribs 156 and the upper edge of the opening 150a of the ventilator duct 150 (the edge of the upper surface 150c). Head for. And it falls below the flange 154 from the edge of the upper surface 150c. Therefore, since water does not travel along the side edge of the opening 150a, it is possible to suitably prevent water from entering the ventilator duct 150 from the side edge.

  In the present embodiment, the rib 156 is provided so as to continuously extend not only to the upper surface 150c of the ventilator duct 150 but also to the rear surface of the flange 154 and the tip of the rear surface (see FIG. 4B). . Accordingly, it is possible to prevent the water that has flowed to the upper edge of the opening 150a and transmitted to the flange 154 from moving to the side edge side of the ventilator duct 150 in the flange 154. In addition, since the rib 156 extends to the tip of the rear surface of the flange 154, the water that has traveled through the rib 156 can easily fall downward, thereby improving water drainage.

  Further, as shown in FIG. 4A, a stepped portion 158 is provided on the lower surface 150d of the ventilator duct 150 on the ventilator base 120 side. The staircase portion 158 extends so as to be overlapped with the protruding portion 128 after being inclined downward on the rear side of the protruding portion 128 of the ventilator base 120. As described above, since the gaps 158a and 158b are provided between the protrusion 128 and the ventilator duct 150 in the height direction and the front-rear direction, a water flow path is secured. A drainage hole 170 is formed between the tip of the staircase portion 158 and the ventilator base 120. By forming the drain hole 170 in this way, even if water enters the ventilator duct 150, the water is quickly discharged from the drain hole 170. Intrusion can be prevented more reliably.

  Further, since the protrusion 128 and the tip of the staircase 158 are vertically overlapped, it is possible to prevent water from entering the ventilator duct 150 from below, and a more reliable measure for preventing water from entering the ventilator duct 150. It will be a thing. Furthermore, when water enters the ventilator duct 150, the water flows along the stepped portion 158 and is guided to the drain hole 170, so that the discharge of water can be promoted more suitably.

  In the present embodiment, the example in which the staircase portion 158 is provided in the ventilator duct 150 has been described. However, the present invention is not limited to this. Even if the ventilator base 120 and the ventilator duct 150 in the vicinity of the drain hole 170 have other shapes, the above-described effects can be obtained.

  FIG. 5 is a view showing another shape of the ventilator base 120 and the ventilator duct 150 in the vicinity of the drain hole. 5A is a view showing the vicinity of the drainage hole when the staircase portion 158 is not provided in the ventilator duct 150, and FIG. 5B is the view of the vicinity of the drainage hole when the staircase portion is provided on the ventilator base 120 side. It is shown.

  In FIG. 5A, the ventilator base 120 side of the lower surface 150 d of the ventilator duct 150 extends so as to overlap the protruding portion 128 without being provided with the stepped portion 158, and the drain hole 170 is provided between the ventilator base 120. Forming. At this time, a gap 158 a is formed between the protrusion 128 and the lower surface of the ventilator duct 150 only in the height direction. Even with such a shape, the water that has entered the ventilator duct 150 can be suitably discharged from the drain hole 170, and water can be prevented from entering the drain hole 170 from below.

  In FIG. 5B, the protrusion 128 a provided on the ventilator base 120 has a stepped shape extending so as to overlap with the ventilator duct 150 after inclining downward on the front side of the lower surface 150 d of the ventilator duct 150. . And the lower surface 150d of the ventilator duct 150 overlaps the protrusion part 128a up and down without providing the step part 158 similarly to Fig.5 (a), and forms the drain hole 170 between the protrusion part 128a. Even in this case, a gap 158a is formed between the protrusion 128a and the lower surface of the ventilator duct 150 only in the height direction. Even with such a shape, the above-described effects can be obtained.

  5A illustrates the shape in which the protruding portion 128 overlaps the lower surface 150d, and FIG. 5B illustrates the shape in which the lower surface 150d overlaps the protruding portion 128a. However, the present invention is not limited thereto. . 5A and 5B, the overlapping order of the protrusions 128 and 128a and the lower surface 150d may be reversed.

  As described above, in the vehicle ventilation structure according to the present embodiment, the ventilator base 120 and the ventilator duct 150 are separate members, and the ventilator duct 150 is attached to the ventilation port 102 a via the ventilator base 120. Therefore, the ventilator base 120 can be shared and only the ventilator duct 150 can be changed as appropriate. Therefore, the configuration of the ventilator 110 can be optimized according to the vehicle type, and cost reduction and weight reduction can be achieved. Further, by making the ventilator duct 150 a simplified shape called a frame shape, the reduction and weight can be reduced, and the mold structure can also be simplified, thereby reducing the cost required for it. It becomes possible.

  In the above-described embodiment, the configuration in which the ventilator duct 150 is provided in the ventilator 110 has been described in detail. However, the present invention is not limited to this. For example, in the case where sufficient measures are taken in the rear bumper 104 to take up snow or the like and water enters, the ventilator duct 150 can be omitted, thereby further reducing the cost. And weight reduction can be achieved.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  The present invention can be used for a vehicle ventilation structure including a ventilator that exhausts air in a vehicle compartment.

DESCRIPTION OF SYMBOLS 102 ... Car body rear panel, 102a ... Ventilation port, 104 ... Rear bumper, 110 ... Ventilator, 120 ... Ventilator base, 122 ... Hooking part, 124 ... Claw part, 126 ... Engagement part, 128 ... Projection part, 128a ... Projection part , 130 ... ventilator valve, 140 ... water seal, 150 ... ventilator duct, 150a ... opening, 150b ... edge, 150c ... upper surface, 150d ... lower surface, 152 ... claw, 154 ... flange, 156 ... rib, 158 ... staircase Part, 158a ... gap, 158b ... gap, 170 ... drain hole

Claims (10)

A ventilation structure for a vehicle including a ventilator that is attached to a ventilation port provided on a rear panel of a vehicle body inside a rear bumper and exhausts air in the vehicle interior through the ventilation port,
The ventilator is
A ventilator valve that is opened and closed by the action of negative pressure generated outside the ventilator is attached, and a ventilator base that is attached to the ventilation port,
A ventilator duct having a frame shape attached to the ventilator base and having an opening on a surface opposite to the surface attached to the ventilator base;
A ventilation structure for a vehicle, comprising:   One of the ventilator base and the ventilator duct has a claw protruding from an outer peripheral surface in the vicinity of the end on the side in contact with the other, and the other is in the vicinity of the end on the side in contact with the one The vehicle ventilation structure according to claim 1, further comprising an engaging portion that engages with the claw portion.   The ventilation structure of a vehicle according to claim 1 or 2, wherein an edge of the opening of the ventilator duct approaches the ventilation port as it goes from above to below.   The vehicle ventilation structure according to any one of claims 1 to 3, wherein a flange projecting downward is provided at an upper edge of the opening of the ventilator duct.   5. The rib according to claim 1, wherein ribs are provided on the upper surface of the ventilator duct and in the vicinity of both sides in the width direction so as to protrude upward and extend in the depth direction of the ventilator duct. 2. A vehicle ventilation structure according to item 1.   The said rib is continuously extended and provided so that it may go around from the upper surface of the said ventilator duct to the rear surface of the said flange, and the tip of this rear surface, The Claim 1 characterized by the above-mentioned. Vehicle ventilation structure. A drainage hole is formed between the lower surface of the ventilator duct and the ventilator base,
7. The ventilator base is formed with a protrusion that overlaps the top and bottom of the ventilator duct and has a gap with the ventilator duct at least in the height direction. The ventilation structure of the vehicle according to claim 1. The ventilator base side of the lower surface of the ventilator duct is provided with a stepped portion extending so as to overlap the protrusion after being inclined downward on the rear side of the protrusion,
8. The vehicle ventilation structure according to claim 7, wherein the drainage hole is formed between a front end of the stepped portion and the ventilator base.   8. The vehicle ventilation structure according to claim 7, wherein the projecting portion has a stepped shape extending so as to overlap with the ventilator duct after being inclined downward on the front side of the ventilator duct. .   The distance from the ventilation port is the order of the free end of the ventilator valve when fully opened, the end of the lower surface of the ventilator duct, the end of the upper surface of the ventilator duct, or the free end of the ventilator valve when fully opened and the The ventilation structure for a vehicle according to claim 1, wherein the ventilation structure increases in the order of an end of the lower surface of the ventilator duct and an end of the upper surface of the ventilator duct.

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