JP2015058723A - Vehicle defroster apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus comprising a low-cost defroster nozzle that can blow out air-conditioning wind by widening so as to cover the whole windshield even when a ventilation path inside the defroster nozzle shortens.SOLUTION: A plurality of pairs of ribs 9a,9b extending in vertical directions are arranged in a vehicle width direction to form a rib group 9 on the inner face of a flexure part of a defroster nozzle 8 formed by flexure halfway in vehicle longitudinal directions. Therefore, air-conditioning wind is guided in a predetermined direction toward the inner face of a windshield 6 by each pair of ribs 9a,9b, while the air-conditioning wind is guided in a different direction from the direction by the ribs 9a,9b at a part where the ribs 9a,9b are absent. Even when a ventilation path of the defroster nozzle 8 shortens by arranging an instrument panel 4 downward, the air-conditioning wind can be blown out over the entire the inner face of the windshield 6. Further, a plurality of pairs of ribs 9a,9b can improve the rigidity of the defroster nozzle 8, so that the defroster nozzle 8 can be formed by low-cost blow molding.

Description

  The present invention relates to a vehicle defroster device that is connected to an air conditioner installed below an instrument panel of a vehicle and includes a defroster nozzle that blows conditioned air from the air conditioner toward an inner surface of a windshield.

  2. Description of the Related Art Conventionally, a defroster device that removes fogging of a vehicle windshield has a defroster nozzle connected to an air conditioner installed below the instrument panel of the vehicle, and blows conditioned air toward the inner surface of the windshield through the defroster nozzle. The defroster nozzle has a flat cylindrical shape in which an upper opening that is an outlet of the defroster nozzle extends in a fan shape in the vehicle width direction (see Patent Document 1).

JP 2010-195301 (see paragraphs 0028-0030 and FIG. 1)

  By the way, in recent years, in mini vehicles, there is a tendency to arrange the instrument panel downward in order to ensure the size of the passenger compartment and the visibility, and when the instrument panel is lowered in this way, the inside of the defroster nozzle Since the ventilation path is shortened, the conditioned air blown from the defroster nozzle does not spread over the entire surface of the windshield, which may cause a problem that fogging of the windshield cannot be efficiently removed.

  In addition, from the viewpoint of manufacturing cost, the defroster nozzle is often formed not by injection molding but by low-cost blow molding, and blow molding reduces the cost, but the rigidity of the molded defroster nozzle decreases. New problems arise.

  It is an object of the present invention to provide an apparatus including an inexpensive defroster nozzle that can spread and blow air-conditioned air over the entire windshield even if the ventilation path inside the defroster nozzle is shortened. .

  In order to achieve the above-mentioned object, a vehicle defroster device according to the present invention is connected to an air conditioner installed below an instrument panel of a vehicle, and sends conditioned air derived from the air conditioner above the instrument panel. In the vehicle defroster device provided with a cylindrical defroster nozzle that blows out toward the inner surface of the windshield, the defroster nozzle is bent in the vehicle longitudinal direction in the middle, and each of the inner surfaces of the bent portion of the defroster nozzle And a plurality of ribs arranged in the vehicle width direction and formed in the vehicle width direction (claim 1).

  The ribs are formed in a plurality of pairs at positions where the inner surface on the vehicle front side and the inner surface on the vehicle rear side of the defroster nozzle face each other, the ribs on the inner surface on the vehicle front side and the inner surfaces on the vehicle rear side. A predetermined interval may be provided between the ribs (Claim 2).

  In addition, the defroster nozzle is formed such that the upper portion branches in a V shape and both branch portions expand in the vehicle width direction, and the ribs are bent toward the center of the V shape of the defroster nozzle. (Claim 3).

  According to the first aspect of the present invention, the defroster nozzle is bent in the longitudinal direction of the vehicle, and a plurality of ribs extending in the vertical direction are arranged in the vehicle width direction on the inner surface of the bent portion of the defroster nozzle. Since the air conditioning air is guided in a predetermined direction by the rib toward the inner surface of the windshield, the air conditioning air is guided in a direction different from the direction in which the air conditioning air is guided by the rib in the portion without the rib. Even if the ventilation path of the defroster nozzle is shortened by arranging the panel downward, the conditioned air can be blown over the entire windshield. And since the rigidity of a defroster nozzle can be improved rather than a some rib, the defroster nozzle which has a rib on the inner surface of a bending part can be formed by low-cost blow molding.

  According to the second aspect of the present invention, the predetermined interval is provided between the rib on the inner surface on the front side of the vehicle and the rib on the inner surface on the rear side of the vehicle. In addition to the flow of conditioned air flowing upward along the ribs, the flow of conditioned air that extends over the ribs and extends in the width direction of the vehicle can also be formed, and the pressure of the conditioned air due to the flow being blocked by hitting the ribs Loss can be prevented, and the conditioned air can be spread in the vehicle width direction and blown over the entire windshield.

  According to the third aspect of the present invention, the upper part of the defroster nozzle is branched in a V shape and both branch parts are expanded in the vehicle width direction due to the arrangement of the defroster nozzle. In this case, the ribs are formed to bend toward the center of the V-shape of the defroster nozzle, so that a flow of conditioned air toward the center of the inner surface of the windshield can be formed and effectively blown over the entire windshield. be able to.

1 is a schematic view of a part of a vehicle equipped with a vehicle defroster device according to an embodiment of the present invention. It is a perspective view of the defroster nozzle in FIG. FIG. 2 is a cut side view of the defroster nozzle in FIG. 1. It is a cutting | disconnection top view of the defroster nozzle in FIG.

(First embodiment)
Next, an embodiment of a vehicle defroster device according to the present invention will be described in detail with reference to FIGS.

  As shown in FIG. 1, an air conditioner 4 is installed below an instrument panel 3 provided in a passenger compartment 2 of a vehicle 1 such as an automobile, and a defroster device 5 is disposed inside the instrument panel 4. The windshield 6 is disposed at the front end portion of the instrument panel 4 so as to be inclined forwardly.

  The defroster device 5 includes a defroster nozzle 8 connected to the air conditioner 4, and the conditioned air from the air conditioner 4 passing through the defroster nozzle 8 is directed from the upper opening 8 a of the instrument panel 4 toward the inner surface of the windshield 6. And the fogging of the windshield 6 is removed.

  By the way, as shown in FIG. 2, the defroster nozzle 8 has a cylindrical shape in which an upper part is branched in a left and right V shape, and left and right branch parts are respectively expanded in the vehicle width direction. As shown in FIG. 3, the defroster nozzle 8 is formed to be bent in an S shape in the vehicle front-rear direction in the middle thereof. Further, the upper center and the lower center of the defroster nozzle 8 and the left and right end portions of the defroster nozzle 8 are respectively formed with bolt mounting portions 8b on the instrument panel 3 and the body, and the defroster nozzle 8 is fixed by bolting. .

  Further, on the inner surface of the bent portion of the defroster nozzle 8, a rib group 9 is formed in which a plurality of ribs extending in the vertical direction are arranged in the vehicle width direction. This rib group 9 is shown in detail in FIG. Further, a front inner surface side rib 9a and a rear inner surface side rib 9b are formed in pairs at positions facing the inner surface 8c on the vehicle front side and the inner surface 8d on the vehicle rear side of the defroster nozzle 8, respectively. A plurality of pairs (four pairs in the present embodiment) of ribs 9a and 9b are arranged to form a rib group 9. A predetermined gap is provided between the front inner surface side rib 9a and the rear inner surface side rib 9b as shown in FIGS.

  By providing an interval between the opposing ribs 9a and 9b in this way, the pair of adjacent ribs 9a and 9b in the vehicle width direction is moved upward along the ribs 9a and 9b indicated by the arrow A in FIG. In addition to the flow of the conditioned air that flows, a flow of conditioned air that extends over the ribs 9a and 9b indicated by the arrow B in FIG. 3 and extends in the vehicle width direction is formed, and the flow is inhibited by hitting the ribs 9a and 9b. Occurrence of pressure loss of the conditioned air due to this is suppressed.

  Further, each pair of ribs 9a and 9b of the rib group 9 is formed to bend toward the center of the V shape formed by the defroster nozzle 8, as shown in FIG. By doing so, a flow of conditioned air toward the center of the inner surface of the windshield 6 is formed, and the conditioned air is blown over the entire inner surface of the windshield 6.

  Therefore, according to the above-described embodiment, the defroster nozzle 8 is bent in the vehicle front-rear direction, and ribs 9a, 9b extending in the vertical direction are formed on the inner surface of the bent portion of the defroster nozzle 8 in the vehicle width direction. Since a plurality of pairs are formed in an array, the conditioned air is guided in a predetermined direction toward the inner surface of the windshield 6 by each pair of ribs 9a and 9b, while the conditioned air is ribbed in a portion without the ribs 9a and 9b. Even if the ventilation path of the defroster nozzle 8 is shortened by being guided in a direction different from the direction by 9a and 9b and the instrument panel 4 being lowered, the conditioned air is applied over the entire inner surface of the windshield 6. Can be blown out.

  Moreover, since the ribs 9a and 9b are formed on the inner surface of the defroster nozzle 8, the rigidity of the defroster nozzle 8 can be remarkably improved by the plural pairs of ribs 9a and 9b. It is possible to integrally form the defroster nozzle 8 having the ribs 9a and 9b on the inner surface thereof.

  Further, by providing a predetermined gap between the front inner surface side rib 9a and the rear inner surface side rib 9b formed in the defroster nozzle 8, the ribs 9a, 9b are provided between the ribs 9a, 9b adjacent in the vehicle width direction. In addition to the flow of the conditioned air flowing upward along the direction of the air flow, the flow of the conditioned air that extends over the ribs 9a and 9b and extends in the vehicle width direction can be formed, and the flow is impeded by hitting the ribs 9a and 9b. Generation of pressure loss of the conditioned air can be suppressed.

  Further, since each pair of ribs 9 is bent toward the center of the V shape formed by the defroster nozzle 8, even if there is no opening in the upper center of the defroster nozzle 8 for forming the bolt mounting portion 8b. The flow of the conditioned air toward the center of the inner surface of the windshield 6 can be formed, the conditioned air can be blown over the entire inner surface of the windshield 6, and the windshield 6 can be efficiently removed.

  The present invention is not limited to the above-described embodiment, and various modifications other than those described above can be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the case where four pairs of ribs 9 are formed has been described, but the number of ribs 9 is not limited to four pairs.

  In the above-described embodiment, the case where the defroster nozzle 8 branches in a V shape has been described. However, the defroster nozzle 8 does not necessarily have to be branched in a V shape, and has a cylindrical shape and an upper portion. As long as is expanded in the vehicle width direction.

DESCRIPTION OF SYMBOLS 1 ... Vehicle 3 ... Instrument panel 4 ... Air conditioning apparatus 5 ... Defroster apparatus 6 ... Windshield 8 ... Defroster nozzle 8c, 8d ... Inner surface 9a, 9b ... Rib

Claims (3)

For a vehicle having a cylindrical defroster nozzle that is connected to an air conditioner installed below the instrument panel of the vehicle and blows out the conditioned air derived from the air conditioner toward the inner surface of the windshield above the instrument panel In the defroster device,
The defroster nozzle is bent in the vehicle longitudinal direction in the middle,
A vehicle defroster device comprising a plurality of ribs each extending in the vertical direction on the inner surface of the bent portion of the defroster nozzle and arranged in the vehicle width direction. A plurality of pairs of the ribs are formed at opposite positions of the inner surface on the vehicle front side and the inner surface on the vehicle rear side of the defroster nozzle,
2. The vehicle defroster device according to claim 1, wherein a predetermined gap is provided between the rib on the inner surface on the front side of the vehicle and the rib on the inner surface on the rear side of the vehicle.   The defroster nozzle is formed such that an upper portion of the defroster nozzle is branched in a V shape and both branch portions are expanded in the vehicle width direction, and the ribs are bent toward the center of the V shape of the defroster nozzle. The vehicle defroster device according to claim 1, wherein the vehicle defroster device is provided.

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