JP6542719B2 - Vehicle defroster device - Google Patents

Description

  The present invention relates to a defroster device for blowing air to a front window of a vehicle.

The defroster apparatus disclosed in Patent Document 1 includes a front defroster duct and a front defroster nozzle provided on the instrument panel and located above the outlet of the front defroster duct, and fronts air passing through the front defroster duct. The fogging is eliminated by spraying the front window from the defroster nozzle.
The front defroster nozzle of the defroster apparatus and the outlet of the front defroster duct extend laterally along the front window so that air can be blown over substantially the entire area thereof. In the front defroster nozzle, a large number of fins extending in the front-rear direction are arranged at intervals in the left-right direction.

Patent No. 3621240

  In the defroster apparatus, it may be necessary to widen the spacing of the fins of the front defroster nozzle. For example, as in the embodiment of the present invention, the main outlet of the front defroster is disposed at the center of the front window, and the front defroster nozzle is correspondingly disposed at the center of the front window. In this case, the air is spread left and right and blown to the front window. In this case, in order to incline the fins of the front defroster nozzle, it is necessary to widen the spacing of the fins due to molding limitations.

  When the distance between the fins is increased as described above, foreign matter may fall from between the fins and enter the front defroster duct. Therefore, the inventor of the present invention has considered to arrange a grid member at the outlet of the front defroster duct below the front defroster nozzle to prevent foreign matter from falling. However, if the grid member is separately manufactured, the manufacturing cost increases and the operation of attaching the grid member to the outlet is also complicated.

  The present invention was made to solve the above problems, and comprises a front defroster duct, and a front defroster nozzle provided on an instrument panel and disposed above an outlet of the front defroster duct. Further, in the vehicle defroster apparatus in which a plurality of fins extending in the front-rear direction are spaced in the left-right direction, a grid member is provided below the front defroster nozzle so as to cover the blowout port of the front defroster duct. The grid member and the front defroster duct are disposed integrally and integrally connected via a thin resin hinge.

  According to this configuration, even if the distance between the fins of the front defroster nozzle is increased, it is possible to prevent foreign matter from falling into the front defroster duct by the grid member disposed below the fin. Since the grid member is integrally connected to the front defroster duct via the thin resin hinge, it can be formed simultaneously with the front defroster duct, and the manufacturing cost can be reduced. Furthermore, since the grid member is positioned relative to the front defroster duct by the thin resin hinge, it can be easily mounted to the outlet of the front defroster duct by pivoting the thin resin hinge.

Preferably, the grid member includes longitudinal grids extending in the front-rear direction and spaced in the left-right direction, and the vertical grids of the grid member are disposed between the fins.
According to this configuration, foreign particles can be efficiently prevented from dropping with a small number of vertical grids.

Preferably, the plurality of fins of the front defroster nozzle are inclined to spread the air blown upward from the outlet in the left and right direction, and the vertical grid of the grid member is in the middle between the lower ends of adjacent fins. It is arranged.
According to this configuration, it is possible to reliably prevent the foreign matter from falling even if the fins are inclined.

Preferably, the grid member has a transverse grid extending to the left and right to intersect the middle part of the longitudinal grid, and the horizontal grid intersects the middle part of the fin.
According to this configuration, even if the fins are long in the front-rear direction, it is possible to reliably prevent the foreign matter from falling.

Preferably, an engaging portion is formed on the grid member at a position away from the thin resin hinge, and a receiving portion with which the engaging portion is engaged is formed on the front defroster duct.
According to the above configuration, the grid member can be stably held at the outlet of the front defroster duct.

  According to the present invention, the grid member can prevent foreign matter from entering the front defroster duct from the front defroster nozzle. Moreover, it is possible to suppress an increase in manufacturing cost associated with the installation of the grid member, and the mounting operation of the grid member is also simple.

It is a perspective view showing the duct structure of the defroster device concerning one embodiment of the present invention. It is a perspective view which shows the 1st structural member and lattice member which comprise the same duct structure. It is a perspective view which shows the 2nd structural member which comprises the same duct structure. It is a perspective view which shows the instrument panel which covers the same duct structure. It is AA arrow sectional drawing in FIG. It is a BB arrow sectional drawing in FIG. It is a front view which shows roughly the blowing condition of the air to the front window by the same defroster apparatus.

Hereinafter, a defroster device according to a first embodiment of the present invention will be described with reference to the drawings. In the following description, the longitudinal direction means the longitudinal direction of the vehicle, and the lateral direction means the lateral direction of the vehicle.
The defroster device comprises a duct structure 1 shown in FIG. The duct structure 1 has a hollow base portion 10, a pair of front defroster ducts 20 which are branched from the base portion 10 to the left and right and extend forward, and a pair of front ends of these front defroster ducts 20 respectively extending in the lateral direction And an extension duct 30.

At the lower end opening of the base 10, temperature-controlled air from an air conditioner (not shown) is introduced. The air introduced into the base 10 is sent forward through the left and right front defroster ducts 20 and is further sent to the left and right extension ducts 30.
In the base 10, a cylindrical connection portion 40 is formed. A separate side defroster duct (not shown) is connected to the connection portion 40 so that air is also sent from the base 10 to the side defroster duct.

  At the front end of the front defroster duct 20, an air outlet 21 opened upward is formed. In the extension duct 30, a small auxiliary nozzle 35 opened upward is formed at a position distant from the blowout port 21 to the left and right.

  The duct structure 1 has a half structure, and is constructed by connecting the rear side (vehicle compartment side) duct component 1A shown in FIG. 2 and the front duct component 1B shown in FIG. . These duct component members 1A and 1B are obtained by injection molding. In the duct component members 1A and 1B, in the halves constituting the base 10, the front defroster duct 20, the extension duct 30, and the connecting portion 40, the codes "A" and "B" are added to the codes 10 to 40, respectively. The explanation is omitted.

  As shown in FIG. 2, the air outlet 21 is formed in the duct component 1A on the rear side. The duct component 1 </ b> A has a support wall 22 which stands in front of and in the vicinity of the air outlet 21. The support wall 22 is located at the center of the front window in the left-right direction, and the support wall 22 is connected to the half portions 30A of the left and right extension ducts 30.

  One edge of the connecting plate 51 is connected to the upper edge of the support wall 22 of the duct forming member 1A via the thin resin hinge 50, and the other edge of the connecting plate 51 is a pair of grid members There are 55 in a row. The grid member 55 intersects the connecting plate portion 51 at a predetermined angle. The left and right grid members 55 are connected to each other by the connecting plate portion 51 and the bridge portion 56.

  The thin resin hinge 50, the connection plate portion 51, and the lattice member 55 are formed of the same resin material (for example, PPF) as the duct constituting member 1A, and are integrally molded simultaneously at the time of injection molding. Since the grid member 55 can be formed integrally with the duct component 1A together with the thin resin hinge 50, the manufacturing cost can be reduced.

  Each of the grid members 55 is formed to be horizontally long, and intersects a plurality of (six in the present embodiment) vertical grids 55a spaced apart in the left-right direction and the approximate center (intermediate part) of the vertical grids 55a. And a horizontal grid 55b extending in the left-right direction.

The left and right grid members 55 can be set at positions covering the left and right outlets 21 as shown in FIG. 1 by pivoting about the thin resin hinge 50. Since the grid member 55 is positioned by the thin resin hinge 50, the setting to the outlet 21 can be performed easily and efficiently.
In the set state, the connection plate 51 is disposed along the support wall 22.

  The grid member 55 has a protrusion 55c (engagement portion) and an elastic claw 55d (engagement portion) extending in the left-right direction at the opposite edge of the thin resin hinge 50, and an engagement protrusion 55e (engagement) at the side edge Part). When the grid member 51 is rotated from the position shown in FIG. 2 to the set position, the protrusion 55c enters the outlet 21 so that the ridge 21c contacts the edge 21a (receiving part) on the rear side (vehicle compartment side) of the outlet 21. The elastic claw 55d is engaged with the edge 21a from the outside, and the engagement protrusion 55e enters the engagement hole 23 (receiving portion) formed in the vicinity of the side edge of the blowout port 21. Thus, the grid member 55 is held at the set position.

  As shown in FIG. 4, the duct structure 1 is covered by an instrument panel 2. In the present embodiment, the extension duct 30 is not covered by the instrument panel 2 and is exposed to the passenger compartment.

  A front defroster grill 60 is installed at the center in the left-right direction of the front end edge of the instrument panel 2, and a side defroster grill 70 is installed at the left and right ends. The grills 60 and 70 constitute a part of the instrument panel 2.

  The front defroster grill 60 has two front defroster nozzles 61 divided into right and left. Each front defroster nozzle 61 has an elongated shape on the left and right, and as shown in FIGS. 5 and 6, it is located above the blowout port 21 of the front defroster duct 20 and is continuous with the blowout port 21.

  In the front defroster nozzle 61, a plurality of (six in the present embodiment) fins 65 extending in the front-rear direction are formed at intervals in the left-right direction. In the front defroster nozzle 61 on the right side, the fins 65 are inclined to the right, and the inclination angle is increased as going to the right. Further, in the front defroster nozzle 61 on the left side, the fins 65 are inclined to the left, and the inclination angle thereof increases in the left direction. As a result, as shown in FIG. 7, the air blown upward from the outlet 21 of the right front defroster duct 20 is spread by the fins 65 of the right front defroster nozzle 61 and hits the wide area from the center of the front window W to the right. . Similarly, the air blown upward from the blowout port 21 of the left front defroster duct 20 is spread by the fins 65 of the left front defroster nozzle 61 and impinges on the left wide area from the center of the front window W.

As shown in FIG. 5, a grid member 55 covering the air outlet 21 of the front defroster duct 20 is located below the fin 65. The vertical grid 55a extends in the front-rear direction (direction orthogonal to the paper surface of FIG. 5), and is disposed substantially at the center (intermediate position) of the gap between the lower ends of the adjacent fins 65. As shown in FIG. 6, the horizontal grid 55b extends in the left-right direction (the direction orthogonal to the paper surface in FIG. 6), intersecting the approximate center (middle part) in the front-rear direction of the lower end edge of the fins 65.
Even if foreign substances such as small objects placed on the instrument panel 2 fall between the fins 65, they can be blocked by the vertical grid 55a and the horizontal grid 55b of the grid member 55, and foreign substances enter the front defroster duct 20. Can be blocked.

  In the present embodiment, air also flows from the front defroster duct 20 to the left and right extension ducts 30, and as shown in FIG. 7, air can be blown from the auxiliary nozzle 35 of the extension duct 30 to the front window W. In this manner, air can be blown to the area to which the air from the nozzles 61, 61 in the center does not reach, specifically, the lower left corner and the lower right corner of the front window W. The amount of air blown out from the auxiliary nozzle 35 may be small, so the extension duct 30 may be thin.

  The side defroster grill 70 of the instrument panel 2 is connected to the outlet of the side defroster duct connected to the connection portion 40, and can blow air to the side window.

The present invention is not limited to the above embodiment, and various aspects are possible.
In the above embodiment, the grid members have vertical grids and horizontal grids arranged corresponding to the fins of the front defroster nozzle, but may have a grid shape that is not related to the layout of the fins. In this case, the grid must be finer than the fin spacing.
In the above embodiment, the pair of front defroster ducts are branched left and right, but may be one. In this case, one air outlet is located at the center of the front window, and one grid member and one front defroster grill are provided.

  The present invention can be applied to a defroster apparatus for blowing air to a front window of a vehicle.

Reference Signs List 1 duct structure 2 instrument panel 20 front defroster duct 21 outlet 50 thin-walled resin hinge 55 lattice member 55a vertical lattice 55b horizontal lattice 61 front defroster nozzle 62 fin

Claims (3)

A front defroster duct and a front defroster nozzle provided on the instrument panel and disposed above the outlet of the front defroster duct, and a plurality of fins extending in the front-rear direction are spaced from the front defroster nozzle in the left-right direction In the vehicle defroster arrangement disposed at
A grid member is disposed below the front defroster nozzle so as to cover the outlet of the front defroster duct, and the grid member and the front defroster duct are integrally connected via a thin resin hinge .
The plurality of fins of the front defroster nozzle are inclined in order to spread the air blown upward from the outlet in the left and right direction,
The grid member has a plurality of vertical grids extending in the front-rear direction and spaced apart in the left-right direction,
The defroster apparatus for a vehicle , wherein the vertical grid of the grid member is disposed in the middle between lower ends of adjacent fins . The vehicle defroster according to claim 1 , wherein the grid member has a horizontal grid extending to the left and right and intersecting the middle part of the vertical grid, and the horizontal grid intersects the middle part of the fin. apparatus. The above grid member is engaging portion formed at a position distant from the thin resin hinge claim 1 in the front defroster duct, characterized in that the engaging portion receiving portion for engagement is formed The defroster apparatus for vehicles as described in or 2 .

Images