CN111196132A

CN111196132A - Ventilation device for vehicle

Info

Publication number: CN111196132A
Application number: CN201911106752.5A
Authority: CN
Inventors: 弗朗索瓦·佩兰; 雨果·德拉斯; 奥黛丽·胡巴柴克
Original assignee: Faurecia Interieur Industrie SAS
Current assignee: Faurecia Interieur Industrie SAS
Priority date: 2018-11-16
Filing date: 2019-11-13
Publication date: 2020-05-26
Also published as: DE102019130062A1; FR3088585B1; FR3088585A1

Abstract

The ventilation device (1) comprises: -a ventilation duct (3); -at least one movable blade (11, 13); -a light emitting device (21) generating a light beam (23); -a display surface (25); -a mechanical connection (27) of the light emitting device (21) to the at least one blade (11, 13), arranged such that a displacement of the at least one blade (11, 13) causes a displacement of the light emitting pattern (M) formed by the light beam (23) on the display surface (25).

Description

Ventilation device for vehicle

[ technical field ] A method for producing a semiconductor device

The present invention generally relates to a ventilation apparatus for a vehicle.

[ background of the invention ]

In certain new generation ventilation devices, it is possible to completely cover the movable blades, which enable the orientation of the air flow blowing into the passenger compartment of the vehicle to be guided. Such an arrangement gives the ventilation device a neat appearance. However, this prevents the passenger from knowing the effect of the current adjustment of the ventilation device on the orientation of the airflow.

[ summary of the invention ]

In this case, the object of the invention is to propose a ventilation device which enables the passenger to know the current orientation of the directional blades of the ventilation device, even if these are hidden inside the ventilation device and not visible to the passenger.

In the present patent application, the current position means the position occupied at the current moment of consideration.

To this end, the invention relates to a ventilation device for a vehicle, comprising:

-a duct defining internally a ventilation airway, said duct having a supply air opening;

-at least one vane movable relative to the duct to direct the orientation of ventilation air exiting through the opening;

-a light emitting device generating a light beam;

-a display surface onto which the light beams are projected and on which a light emitting pattern is formed;

-a mechanical connection of the light emitting device to the at least one blade, arranged such that a displacement of the at least one blade relative to the duct causes a displacement of the light emitting pattern on the display surface.

Thus, the position of the light-emitting pattern on the display surface gives the passenger an indication about the orientation of the at least one blade.

The ventilation device may also comprise one or more of the following features considered alone or according to all possible technical combinations:

-the display surface is fixed relative to the pipe;

-the at least one blade comprises at least one first blade mounted in a pivoting manner relative to the duct about a first axis of rotation, rotation of the at least one first blade about the first axis of rotation causing the light emission pattern to be displaced on the display surface in a first direction from a current position;

-the at least one blade comprises at least one second blade mounted in a pivoting manner relative to the duct about a second axis of rotation, rotation of the at least one second blade about the second axis of rotation causing the luminous pattern to be displaced on the display surface from a current position in a second direction, the second direction being different from the first direction;

-the light emitting arrangement comprises:

a member that generates light;

a first housing having a first part in the form of a part-spherical surface, the first part having a first slot extending in a first plane;

a second housing having a second part in the form of a part-spherical surface, the second part having a second slot extending in a second plane, the first and second housings being concentric and overlapping such that the first and second slots intersect;

-the mechanical connection comprises:

a first connection of the first housing to the at least one first vane, arranged such that rotation of the at least one first vane about a first axis of rotation causes rotation of the first housing about a first pivot axis relative to the duct;

a second connection of the second housing to the at least one second vane, arranged such that rotation of the at least one second vane about a second axis of rotation causes rotation of the second housing about a second pivot axis relative to the duct;

-the first housing and/or the second housing define an enclosed volume in which the light-generating member is accommodated;

-the light emitting arrangement comprises a light generating member generating a light beam, the mechanical connection comprising:

a first connection of the light-generating member to the at least one first blade, arranged such that rotation of the at least one first blade about a first axis of rotation causes rotation of the light-generating member relative to the duct about a first pivot axis;

a second connection of the light-generating member to the at least one second blade, arranged such that rotation of the at least one second blade about a second axis of rotation causes rotation of the light-generating member about a second pivot axis relative to the duct;

-the light-generating member comprises a longitudinal tubular reflector having open longitudinal ends and a light source directing light into the interior of the tubular reflector towards the open longitudinal ends;

-the ventilation device comprises a box body defining a plurality of beam guiding paths inside

Each passageway having a proximal end turned towards the light emitting device and a distal end turned towards the display surface;

-said passage is substantially rectilinear and it is oriented along respective directions converging towards said light emitting means;

-the ventilation device comprises a plurality of beam guiding prisms, each prism having a proximal end turned towards the light emitting means and a distal end turned towards the display surface;

-the ventilation device comprises a positioning grid abutting the display surface.

According to a second aspect, the invention relates to a vehicle equipped with a ventilation device having the above-mentioned features, the supply air opening into a passenger compartment of the vehicle.

Advantageously, the vanes are housed inside the duct, the display surface covering the vanes with respect to the passengers.

[ description of the drawings ]

Other characteristics and advantages of the present invention will appear clearly from the detailed description given below, given by way of indication and in no way limiting with reference to the accompanying drawings, in which:

figure 1 is a perspective view of a ventilation device according to the invention, with a portion of the structure extracted so as to expose the elements of the ventilation device;

FIG. 2 is a front view of a box defining a beam guiding path;

fig. 3 is a side view depicting the cartridge of fig. 2 and the light emitting device;

figure 4 is an exploded view of a part of the ventilation device of figure 1;

fig. 5 is a perspective view depicting the connection between the first housing of the light emitting device and the first blade;

figures 6 and 7 are perspective views depicting the connection between the second casing of the lighting device and the second blade;

fig. 8 is a perspective view particularly illustrating a variant of the invention in which the light-generating member is movable;

figures 9 and 10 show the mechanical connection between the light-generating member of figure 8 and the blade; and

fig. 11 and 12 are perspective views showing various embodiment variants of the invention.

[ detailed description ] embodiments

The ventilation device 1 shown in fig. 1 is generally intended to be integrated in a ventilation circuit or an air-conditioning circuit of a vehicle, which is typically a motor vehicle such as a car or truck.

The ventilation device is intended to be placed in the passenger compartment of a vehicle, for example on the dashboard or in any other position of the vehicle.

Which is generally intended to deliver an airflow into the passenger compartment of the vehicle.

The ventilation device 1 comprises a duct 3, which duct 3 internally delimits a ventilation air passage. The duct has a supply air opening 5.

The opening 5 is typically open to the passenger compartment of the vehicle.

The duct 3 comprises, for example, a casing 6 on which an upper half-shell 7 and a lower half-shell 8 are fixed. The upper and

lower half shells

7, 8 have upper and lower edges 9, 10, respectively, with the opening 5 being defined between the upper and lower edges 9, 10.

The upper and lower edges 9, 10 are spaced from each other in the lifting direction V marked in fig. 1.

In the example shown, the upper and lower edges 9, 10 are transverse and parallel to each other.

Thus, the opening 5 is a transverse split.

In fig. 1, only a part of the housing 6 is shown.

The air flows in the duct 3 in the general flow direction E (indicated by arrows in fig. 1) towards the opening 5.

The ventilation device 1 further comprises at least one blade which is movable relative to the duct 3 to direct the orientation of the ventilation air exiting through the opening 5.

More precisely, the ventilation device comprises at least one first blade 11, which is mounted in a pivoting manner with respect to the duct 3 about a first axis of rotation.

For example, the first axis is substantially transverse.

The first blade 11 is mounted on the housing 6.

The first blades 11 thus make it possible to direct the air flow towards the upper half-shell 7 or towards the lower half-shell 8.

In the example shown, the ventilation device comprises a single first blade 11. As a variant, the ventilation device 1 comprises a plurality of first blades 11 mounted in a pivoting manner with respect to the duct 3 about their respective first rotation axes, which are parallel to each other.

The ventilation device 1 further comprises at least one second blade 13, which is mounted in a pivoting manner with respect to the duct 3 about a second axis of rotation. In general, the ventilation device 1 comprises a plurality of second blades 13, which are mounted in a pivoting manner with respect to the duct 3 about their respective second axes of rotation, which are parallel to each other.

The or each second axis forms a non-zero angle with the first axis and is generally perpendicular to the first axis.

For example, the second axis is along the elevation direction V.

Thus, the first axis and the or each second axis are generally parallel to the plane of the opening 5.

The one or more second blades 13 thus make it possible to direct the airflow laterally towards one or the other lateral end of the opening 5.

In the example shown, the ventilation device comprises two throttle doors 14, which are disposed at a relatively greater distance from the opening 5 than the first blade 11 in the flow direction.

A throttle 14 is provided for selectively closing or opening the ventilation air passage. The throttle 14 is pivotable about a transverse axis relative to the housing 6.

Typically, the ventilation device 1 also comprises a control mechanism 15 arranged so that a passenger of the vehicle can displace the or each first blade 11 relative to the duct 3 by rotating about a corresponding first axis, and displace the or each second blade 13 relative to the duct 3 by rotating about a corresponding second axis.

Only a portion of this mechanism 15 is shown in fig. 1.

More precisely, in fig. 1, the end of a shaft 17 can be seen, by means of which shaft 17 the second blade 13 is mounted on the pipe 3.

Fig. 1 also depicts that the drive means 15 comprise a bar 19 having a substantially transverse orientation, the bar 19 being connected to each second blade 13 by a pivot connection. Displacement of the rod 19 in the transverse direction causes the second blade 13 to rotate about the second axis relative to the pipe 3.

The ventilation device 1 further comprises a light emitting means 21 generating a light beam 23 and a display surface 25 (fig. 4).

The light beam 23 is projected onto the display surface 25, thereby forming a light-emitting pattern M on the display surface 25.

Furthermore, the ventilation device 1 comprises a mechanical connection 27 of the light emitting means 21 to the at least one

blade

11, 13, which is arranged such that a displacement of the at least one

blade

11, 13 relative to the duct 3 causes a displacement of the light emitting pattern M on the display surface 25.

The mechanical connection 27 is configured such that a rotation of the at least one first blade 11 around the first rotation axis causes a displacement of the light-emitting pattern M on the display surface 25 from its current position in the first direction D1 (fig. 4).

If the rotation of the at least one first blade 11 is in the first orientation, the displacement of the light emitting pattern M in the first direction D1 is in the first orientation. If the rotation of the at least one first blade 11 is in a second orientation opposite to the first orientation, the displacement of the light emitting pattern M in the first direction D1 is in the second orientation opposite to the first orientation.

More precisely, the rotation of the or each first blade 11 about the corresponding first rotation axis from a given angular position causes the light-emitting pattern M to be displaced on the display surface 25 from its current position, along a rectilinear path if the light-emitting pattern M is displaced on a flat portion of the display surface 25, and along a curved path if the light-emitting pattern M is displaced on an arc-shaped portion of the display surface 25.

In the case of fig. 4, the first direction D1 corresponds to the raising direction V. The light emission pattern M is shifted from its current position towards the upper edge 9 or towards the lower edge 10 depending on the rotational orientation of the at least one first blade 11.

Likewise, the mechanical connection 27 is configured such that a rotation of the at least one second blade 13 around the second rotation axis causes the light emitting pattern M to be displaced on the display surface 25 from the current position in a second direction D2, the second direction D2 being different from the first direction (fig. 4).

For example, the first direction and the second direction are perpendicular to each other.

If the rotation of the at least one second blade 13 is in the first orientation, the displacement of the light emitting pattern M in the second direction D2 is in the first orientation. If the rotation of the at least one second blade 13 is in a second orientation opposite to the first orientation, the displacement of the light emission pattern M in the second direction D2 is in the second orientation opposite to the first orientation.

Rotation of the or each second blade 13 about the corresponding second axis of rotation from a given angular position then causes the light-emitting pattern M to be displaced from its current position on the display surface 25, along a straight line if the light-emitting pattern M is displaced on a flat portion of the display surface 25, and along a curved line if the light-emitting pattern M is displaced on an arc-shaped portion of the display surface 25.

In the case of fig. 4, the second direction corresponds to the lateral direction. The light emitting pattern M is shifted rightward or leftward from its current position according to the rotational orientation of the at least one second blade 13.

The display surface 25 is visible to an occupant of the vehicle. The display surface 25 is located in the opening 5. The display surface 25 is typically fixed relative to the duct 3 and may be movable relative to the duct 3.

In the example shown, the display surface 25 is located at the center of the opening 5 in the lifting direction. Thus, the opening 5 comprises an air passage area between the upper edge 9 and the display surface 25 and a further air passage area between the lower edge 10 and the display surface 25.

The display surface 25 is defined by a decorative feature 33. The ornamental member 33 is a thin case made of a translucent plastic material. The ornamental part 33 has a substantially C-shape as viewed in a cross section in a plane perpendicular to the lateral direction.

More precisely, the part 33 comprises a central face 35, on either side of which central face 35 two lateral wings 37 project. The central face 35 is substantially flat and extends in the plane of the opening 5. The flanks 37 are slightly concave towards each other and extend from the central face 35 towards the inside of the duct 3.

Display surface 25 includes a central plane 35 and a portion of surface 37 adjacent to central plane 35.

The luminous pattern M is projected on the inner side of the display surface 25 and is visible to the passenger by virtue of transparency through the material forming the part 33.

The material is sufficiently translucent to make the light emission pattern M visible, but sufficiently opaque to cover the interior of the duct 3.

The light emitting pattern is of any suitable type. For example, it is a small spot or light spot relative to the area of the display surface 25.

In this way, the position of the luminous pattern on the display surface 25 corresponds directly to the angular position of the at least one first blade 11 about the first axis of rotation and directly to the angular position of the at least one second blade 13 about the second axis of rotation.

More precisely, the mechanical connection 27 is arranged such that when the at least one first blade 11 deviates the ventilation air flow from the first side in the lifting direction, for example towards the upper edge 9, then the light-emitting pattern is located on the same side of the display surface 25 facing towards the upper edge 9. Conversely, when the at least one blade 11 is in an angular position deviating the air flow in the direction of rise from a second side opposite to the first side, i.e. towards the lower edge 10, then the light pattern is located on the second side of the display surface 25 towards the lower edge 10.

Likewise, when the at least one second vane 13 laterally deflects the airflow from the first side, then the light pattern is laterally located on the first side of the display surface 25. When the at least one second vane 13 laterally deflects the airflow from a second side opposite the first side, then the light emission pattern is laterally located on a second side of the display surface 25.

Thus, the position of the light pattern on the display surface 25 indicates the current position of the

blade

11, 13.

The light-emitting device 21 includes (see fig. 1 to 7):

a light-generating member 39;

a first housing 41 having a first part 43 in the form of a part-spherical surface, the first part 43 having a first slot 45 extending in a first plane P1;

a second housing 47 having a second part 49 shaped as a part-spherical surface, the second part 49 having a second slot 51 extending in a second plane P2.

The first and

second housings

41, 47 overlap and are arranged such that the first and

second slots

45, 51 intersect. The first and

second parts

43, 49, which are part-spherical, have substantially the same geometrical centre.

For simplicity, the first and

second slots

45, 51 are imaginary considered herein to be without thickness and may each be inscribed in a plane. Planes P1 and P2 are shown in fig. 4.

The first housing 41 and/or the second housing 47 define an enclosed volume in which the light-generating member 39 is housed.

In the example shown, the first housing 41 is closed and defines the closed volume alone. As a variant, the first casing 41 and the second casing 47 are not closed, but together define said closed volume. According to another variant, the first housing is not closed, but the second housing 47 is closed and alone delimits the closed volume.

The first and

second housings

41, 47 overlap in the sense that the

parts

43, 49, which are shaped as part-spherical surfaces, abut each other or are separated by only a small gap. In this way, the first and

second housings

41, 47 can be rotationally displaced relative to each other.

Light generated inside the enclosed volume by the light-generating means 39 can only exit through the aperture defined at the intersection between the first and

second slots

45, 51.

The mechanical connection 27 comprises a first connection 53 of the first housing 41 to the at least one first vane 11, which is arranged such that rotation of the at least one first vane 11 about the first axis of rotation causes rotation of the first housing 41 about the first pivot axis relative to the duct 3.

The first pivot axis is typically substantially parallel to the first axis of rotation.

This first connection 53 is shown more particularly in fig. 5 and 6.

Likewise, the mechanical connection 27 comprises a second connection 55 (visible in particular in fig. 6 and 7) of the second housing 47 to the at least one second blade 13, which is arranged such that a rotation of the at least one second blade 13 about the second rotation axis causes a rotation of the second housing 47 about the second pivot axis relative to the duct 3.

The second pivot axis is typically substantially parallel to the second axis of rotation.

In this way, the second housing 47 is pivotally mounted on a support 57 fixed with respect to the duct 3 (fig. 1 and 6). The support 57 has a C-shape as viewed in cross section in a plane perpendicular to the transverse direction. The free edge of which is fixed to the side flap 37 of the ornamental element 33. The recess of the part 33 is opposite to the recess of the support 57. The element 33 thus forms with the support 57 an island in the duct 3 and divides the duct 33 into two channels. The island is located in the center of the pipe 3 in the direction of elevation.

The light emitting means 21 is completely accommodated inside the island.

The second housing 47 is connected to the support 57 by a pivotal connection 58 about a second pivot axis X2 (which is labeled in fig. 5 and 6).

The first connection 53 of the first housing 41 to the at least one first blade 11 comprises a fork 59 integral with the first housing 41. The fork 59 passes through a window provided in the support 57. The fork 59 points substantially in the flow direction from the first housing 41 into an orientation opposite the opening 5.

The first connection 53 further comprises a finger 61 integral with at least one first blade 11 and snap-fitted in the fork 59. The finger 61 is laterally pointed from an arm 63 integral with the blade 11. The finger 61 is snapped inside the fork 59, sliding and rotating freely. The finger 61 forms a cam and the fork 59 forms a cam follower cooperating with the cam. In the illustration of fig. 5, clockwise rotation of the finger 61 about the rotational axis of the first vane 11 causes counterclockwise rotation of the fork 59, and thus of the first housing 41 about the first pivot axis.

The first housing 41 is located inside the second housing 47. The rotational movement of the first housing 41 about the first pivot axis is guided by the inner surface of the second housing 47.

The second connection 55 of the second housing 47 to the at least one second blade 13 comprises a link 64, the link 64 being pivotably mounted at a first end to the second housing 47 and at a second end opposite the first end to the second blade 13. The first end is fixed at point 65 of the second eccentric housing relative to the second pivot axis X2. The link 64 has a generally transverse orientation such that rotational movement of the second leaf 13 about its axis causes pivoting of the second housing 47 about its pivot axis.

The first plane in which the first slot 45 extends generally contains the first pivot axis. Likewise, the second plane in which the second slot 51 extends generally contains the second pivot axis.

The light-generating member 39 is, for example, a diode of the LED (light emitting diode) type. As a variant, the light-generating member is of any other suitable type.

In order to enable the passenger to better see the orientation of the luminous pattern, the ventilation device 1 advantageously comprises a box 83, the box 83 defining internally a plurality of beam guiding paths 85. The cartridge is shown in fig. 1 to 4. Each passageway 85 has a proximal end 87 turned towards the light emitting device 21 and a distal end 89 turned towards the display surface 25.

The passage 85 is advantageously substantially rectilinear and it is oriented along respective directions converging towards the light emitting means 21.

For example, the vias 85 are organized into several lateral rows that overlap in the elevation direction. In the same row, the vias are deployed laterally side by side. Thus, the passages 85 are arranged in a rectangular matrix.

The cartridge 83 is typically a part that is injected with a plastic material.

The passages 85 are separated from each other by partitions 91. The passageway 85 is hollow. Each passageway 85 has a rectangular cross-section that widens from the proximal end 87 to the distal end 89.

The material constituting the case 83 is, for example, an opaque material having a reflectance of more than 90%. The material is for example white. This enables a good reflection of the light beam on the walls of each via.

The proximal end 87 of the passageway is inscribed on a surface shaped as a part of a sphere, which is located near the light emitting means 21 and faces the light emitting means 21.

The part-spherical surface into which the proximal end 87 is inscribed has substantially the same geometric center as the part-

spherical elements

43 and 49.

The distal end 89 is located very close to the display surface 25 and faces the display surface 25.

The number and arrangement of the passages 85 is selected according to the magnitude of the angular displacement of the light beam. More precisely, the number and disposition of the passages 85 are chosen so that the light beam can be captured by one of the passages 85, regardless of the angular position of the

blades

11 and 13.

The operation of the ventilation apparatus 1 described above will now be described in detail.

When the occupants of the vehicle wish to change the orientation of the airflow leaving the ventilation device through the opening 5, they operate the control means 15.

The at least one first blade 11 is rotationally displaced, if necessary, from its current angular position about a first axis of rotation.

The at least one first blade 11 in turn drives the first housing 41 in rotation about its pivot axis by means of the first connection 53.

The displacement of the first slot 45 along the second slot 51 displaces the light beam 23 through its aperture out of the enclosed volume in which the light-generating means 39 is located.

As a result of the displacement of the at least one blade 11, the light beam 23 generated by the light-emitting device is thus displaced in the second plane, i.e. in the plane in which the second slot 51 extends in the current angular position of the second blade 13.

Thereby, the light emission pattern M is shifted in the first direction D1 on the display surface 25. In the example shown, the light-emitting pattern follows a path that includes straight segments when the light-emitting pattern M passes through the flat central face 35 and segments of complex shape when the light-emitting pattern M is displaced on the flanks 37.

The angular displacement of the first blade 11 will also cause the light beam 23 to pass from one passage 85 to another in the same column of the box 83.

At least one second blade 13 is also rotationally displaced, if necessary, from its current angular position about a second axis of rotation.

The at least one second blade 13 in turn drives the second housing 47 in rotation about its pivot axis by means of the second connection 55.

The displacement of the second slot 51 along the first slot 45 displaces the light beam 23 through its aperture out of the enclosed volume in which the light-generating means 39 is located.

As a result of the displacement of the at least one second blade 13, the light beam 23 generated by the light-emitting device is thus displaced in a first plane, i.e. in the plane in which the first slot 45 extends in the current angular position of the at least one first blade 11.

Thereby, the light emission pattern M is shifted in the second direction D2 on the display surface 25. In the example shown, the light emission pattern M follows a substantially straight and lateral path.

The angular displacement of at least one second blade 13 will also cause the light beam 23 to pass from one passage 85 to the other in the same row of the box 83.

The passage 85 guides the light beam to the display surface, which enables a very clear display of the light emission pattern M on the display surface.

The path of guidance to which the light beam 23 is directed depends on the angular position of the

blades

11, 13.

The movements of the first blade 11 and the second blade 13 are combined together so that the shift of the light emission pattern on the display surface corresponds to the combination of the two shifts.

An implementation variation of the present invention will now be described with reference to fig. 8 to 10. Only the points at which this variation differs from those in fig. 1 to 7 will be described in detail below. In both embodiment variants, elements that are identical or that guarantee the same function will be designated by the same reference numerals.

In the embodiment variant of fig. 8 to 10, the light-emitting means 21 comprise a light-generating member 92 that generates the light beam 23.

The mechanical connection 27 comprises (fig. 9 and 10):

a first connection 93 of the light-generating member 92 to the at least one first blade 11, arranged such that a rotation of the at least one first blade 11 around a first rotation axis causes a rotation of the light-generating member 92 around a first pivot axis X1 relative to the duct 3;

a second connection 94 of the light-generating member 92 to the at least one second blade 13, which is arranged such that a rotation of the at least one second blade 13 around the second rotation axis causes a rotation of the light-generating member 92 around the second pivot axis X2 relative to the duct 3.

The second pivot axis is typically substantially parallel to the second rotation axis or forms an angle of small magnitude with respect to the second rotation axis.

Thus, in this embodiment variation, the entire light-generating member 92 is displaced, while the light-generating member 92 is fixed in the first embodiment variation.

For example, the light-generating member 92 includes a longitudinal tubular reflector 95 and a light source 97. The tubular reflector 95 has open longitudinal ends 99. The end turns towards the opening 5. The light source 97 is configured to direct light toward the open longitudinal end 99 and into the interior of the tubular reflector 95. Advantageously, the tubular reflector 95 has a closed longitudinal end opposite the open end, to which the light source 97 is rigidly fixed. The light-generating means 92 is schematically shown in fig. 8. The light-generating means 92 is more precisely shown in fig. 9 and 10.

The first connection 93 comprises a bracket 101 mounted to the support 57 by a pivotal connection 103 about a first pivot axis X1. For clarity, the support 57 is not shown in fig. 9, but it is visible in fig. 10.

The second connection 94 comprises a pivotal connection 105 of the light-generating member to the carriage 101, the axis of which pivotal connection corresponds to the second pivot axis X2.

The carriage 101 cooperates with the at least one first blade 11 by means of fingers 107 and forks 109 identical to those described with reference to figure 5. In the illustration of fig. 10, the finger 107 is supported by the first blade 11 and the fork 109 is supported by the bracket 101. As a variation, the fingers and forks are oppositely positioned.

The pivotal connection 103 includes the end of a shaft 111 integral with the carriage 101 and located to the left of the carriage 101 in the illustrations of fig. 9 and 10. The end of the shaft 111 rotates in a rotary guide bearing 113 (which can only be partially seen in fig. 10 and is not shown in fig. 9) integral with the support 57.

The second connection 94 comprises a sliding part 115 visible in fig. 9 and 10. The sliding part 115 comprises a segment 117 of circular cross-section, which segment 117 extends along the first pivot axis X1, protruding a segment 119 for driving the light-generating member 92.

A segment 117 of circular cross-section passes through the side wall 121 of the cradle 101. A segment 117 of circular cross-section is deployed opposite the end of the shaft 111 with respect to the carriage 101, and aligned therewith.

The end of the segment 117 furthest from the bracket 101 supports a fork 123, which fork 123 comprises two discs 125 integral with the segment 117 of circular cross-section. The discs 125 define between them an annular gap 127, in which annular gap 127 a guide rod 129 integral with one of the second blades 13 is engaged. The rod is normally joined to said second blade 13 through a suitably shaped window provided in the support 57.

The guide rod 129 is free to rotate and translate within the gap 127.

The segment 117 of circular section is received in a guide bearing 131 integral with the support 57, and the segment 117 of circular section is free to rotate about the first pivot axis X1 and to slide along the first pivot axis X1 freely with respect to the guide bearing 131.

The sliding part 115 is also free to slide along the first pivot axis X1 through the side wall 121 of the bracket 101.

The light-generating member 92 supports a protruding pin 133, which protruding pin 133 is snap-fitted in another fork 135 integral with the drive segment 119 (fig. 10).

The operation of the ventilation apparatus will now be described.

The at least one first blade 11 in turn drives the rotation of the carriage 101 about its first pivot axis X1 by means of the first connection 93. The light-generating member 92 is rotationally displaced together with the carriage 101 about the first pivot axis X1.

The light emission pattern M generated by the light emitting device is shifted on the display surface 25.

The at least one second blade 13 in turn drives, by means of the lever 129 and the fork 123, the sliding part 115 in translation along the first pivot axis X1.

The translational displacement of the sliding part causes the light-generating member 92 to pivot relative to the carriage 101 about the second pivot axis X2 by means of the protruding pin 133 cooperating with the further fork 135.

The light emission pattern M generated by the light emitting means is displaced on the display surface 25 by the displacement of the at least one second blade 13.

A further embodiment variant of the invention will now be described with reference to fig. 11. Only the points at which this variation differs from those in fig. 1 to 7 will be described in detail below. In both embodiment variants, elements that are identical or that guarantee the same function will be designated by the same reference numerals.

According to the variant of embodiment shown in fig. 11, the box 83 is replaced by a plurality of prisms 101 for guiding the light beam. Each prism 101 functions as one of the passages 85 and has substantially the same shape as the passage 85.

The prism 101 is disposed in the same manner as the via 85. Thus, the prisms 101 each have a rectangular cross-section that widens progressively from the proximal end 103 of the prism toward the distal end 105 of the light emitting device 21. The prisms 101 are arranged to form several rows overlapping each other along the elevation direction. The prisms 101 are separated not by spacers but by air layers.

The distal end 105 is turned towards the display surface 25. The distal end 105 is typically located in close proximity to the display surface 25.

Next, another embodiment variation of the present invention will now be described with reference to fig. 12. Only the points at which this variation differs from those in fig. 1 to 7 will be described in detail below. In both embodiment variants, elements that are identical or that guarantee the same function will be designated by the same reference numerals.

According to the variant of embodiment shown in fig. 12, the box 83 is replaced by a positioning grid 107 applied against the display surface 25. In this way, the light beam 23 is no longer directed along its path from the light emitting device 21 to the display surface 25. Instead, the positioning grid 107 draws a checkerboard pattern on the display surface 25, which is visible to the occupants of the vehicle due to transparency. The checkerboard cells are aligned with each other along the first and second planes. These grilles enable the passenger to see how the direction of the airflow is.

The box 83, the prism 101 or the positioning grid 107 may be used with any type of lighting device 21, i.e. the lighting device shown in fig. 1 to 7 or the lighting device shown in fig. 8 to 10 or any other type of suitable lighting device.

Claims

1. Ventilation device (1) of a vehicle, comprising:

-a duct (3) internally delimiting a ventilation airway, said duct (3) having a supply air opening (5);

-at least one blade (11, 13) movable with respect to the duct (3) to direct the orientation of the ventilation air exiting through the opening (5);

-a light emitting device (21) generating a light beam (23);

-a display surface (25), said light beam (23) being projected onto said display surface (25) and forming a luminous pattern (M) on said display surface (25);

-a mechanical connection (27) of the light emitting device (21) to the at least one blade (11, 13), arranged such that a displacement of the at least one blade (11, 13) relative to the duct (3) causes a displacement of the light emitting pattern (M) on the display surface (25).

2. The ventilation device according to claim 1, wherein the display surface (25) is fixed with respect to the duct (3).

3. The ventilation device according to claim 1 or 2, wherein the at least one blade comprises at least one first blade (11) mounted in a pivoting manner with respect to the duct (3) about a first rotation axis, a rotation of the at least one first blade (11) about the first rotation axis causing a displacement of the luminous pattern (M) on the display surface (25) from a current position in a first direction (D1).

4. A ventilation device according to claim 3, wherein the at least one blade comprises at least one second blade (13) mounted in a pivoting manner with respect to the duct (3) about a second axis of rotation, the rotation of the at least one second blade (13) about the second axis of rotation causing the light-emitting pattern (M) to be displaced on the display surface (25) in a second direction (D2) from a current position, the second direction (D2) being different from the first direction.

5. A ventilation device according to claim 1 or 2, wherein said light emitting means (21) comprises:

-a light-generating member (39);

-a first housing (41) having a first part (43) in the form of a part-spherical surface, the first part (43) having a first slot (45) extending in a first plane (P1);

-a second housing (47) having a second part (49) in the form of a partial sphere, the second part (49) having a second slot (51) extending in a second plane (P2), the first and second housings (41, 47) being concentric and overlapping such that the first and second slots (45, 51) intersect.

6. The ventilation device according to claim 5, wherein the at least one blade comprises at least one second blade (13) mounted in a pivoting manner with respect to the duct (3) about a second axis of rotation, a rotation of the at least one second blade (13) about the second axis of rotation causing a displacement of the luminous pattern (M) on the display surface (25) from a current position in a second direction (D2), the second direction (D2) being different from the first direction, and wherein the mechanical connection (27) comprises:

-a first connection (53) of the first housing (41) to the at least one first blade (11) arranged such that rotation of the at least one first blade (11) about a first axis of rotation causes rotation of the first housing (41) about a first pivot axis relative to the duct (3);

-a second connection (55) of the second housing (47) to the at least one second blade (13) arranged such that rotation of the at least one second blade (13) about a second axis of rotation causes rotation of the second housing (47) about a second pivot axis relative to the duct (3).

7. The ventilation device according to claim 5, wherein the first housing (41) and/or the second housing (47) define an enclosed volume in which the light-generating member (39) is accommodated.

8. The ventilation device according to claim 4, wherein the light emitting means (21) comprises a light generating member (92) generating a light beam (23), the mechanical connection (27) comprising:

-a first connection (93) of the light-generating member (92) to the at least one first blade (11), arranged such that a rotation of the at least one first blade (11) around a first rotation axis causes a rotation of the light-generating member (92) around a first pivot axis (X1) relative to the duct (3);

-a second connection (94) of the light-generating member (92) to the at least one second blade (13), arranged such that a rotation of the at least one second blade (13) around a second rotation axis causes a rotation of the light-generating member (92) around a second pivot axis (X2) relative to the duct (3).

9. The ventilation device according to claim 8, wherein the light generating member (92) comprises a longitudinal tubular reflector (95) having an open longitudinal end (99) and a light source (97), the light source (97) emitting light into the interior of the tubular reflector (95) towards the open longitudinal end (99).

10. The ventilation device according to claim 1 or 2, wherein the ventilation device (1) comprises a box (83) defining inside a plurality of light beam (23) guiding paths (85), each path (85) having a proximal end (87) turned towards the light emitting means (21) and a distal end (89) turned towards the display surface (25).

11. A ventilation device according to claim 10, wherein said passage (85) is substantially rectilinear and is oriented along respective directions converging towards said light emitting means (21).

12. The ventilation device according to claim 1 or 2, wherein the ventilation device (1) comprises a plurality of light beam (23) directing prisms (101), each prism (101) having a proximal end (103) turned towards the light emitting means (21) and a distal end (105) turned towards the display surface (25).

13. A ventilation device according to claim 1 or 2, wherein the ventilation device (1) comprises a positioning grid (107) abutting the display surface (25).