This application is a U.S. National Phase application of PCT International Application PCT/IB2005/000525 filed Mar. 1, 2005.
This invention generally relates to rearview mirrors of automotive vehicles and particularly to a rearview mirror assembly of an automotive vehicle with a flashing or turn signal device in the form of an outer module coupled to said housing projecting light towards the front and towards the back of said rearview mirror such that it allows complying with the homologations with respect to it.
Several devices acting as flashing or indicator light devices and incorporated in the casing of a rearview mirror are known, offering both front and side and rear light exits.
Patent application US2003/0174507 (issued as U.S. Pat. No. 6,893,146) proposes a luminaire to be installed in a cover in the form of a cap of an exterior rearview mirror of motor vehicles. Said luminaire has a housing and an electrical lamp arranged inside it, and said housing is completely or partly transparent. When the luminaire is installed, it offers both a front and rear exit with respect to the rearview mirror. A limitation of said application is that the lamp has a very specific shape, specifically a tubular shape and occupies a great part of the mentioned casing.
Another patent reflecting the state of the art is unexamined patent application JP-A-2000-198389 relating to a flasher formed in the rear side of a side mirror of a vehicle. The document contemplates different types of light sources among which are LEDs but their implementation is not very developed.
Finally, U.S. Pat. No. 6,099,153 proposes an exterior rearview mirror for vehicles, preferably motor vehicles. The latter has a light source mounted inside the mirror housing which has an outlet opening through which light is emitted to the outside thanks to a light guide connected to said light source, which light source may be a LED. The patent does not indicate that the light source can act as a flasher.
It is interesting to offer an alternative to the state of the art which contemplates, in a practical manner, the use of LEDs as flashing devices in an outer rearview mirror assembly, the flashes of which are visible both from a front and rear position with respect to the direction of travel, i.e. both by the occupants of the vehicles approaching head-on and those approaching from behind, and that said flashes are projected such that they comply with the respective homologations in the field of the art as regards the projection angles.
In a first aspect, the present invention relates to a rearview mirror assembly of an automotive vehicle with a flashing or indicator light device of the type comprising a rearview mirror housing with a first opening in which said rear view mirror is housed and a second opening defined in at least part of the rest of the outer perimeter of said housing which is in the part opposite to the first opening.
Said rearview mirror assembly further comprises:
A second aspect of the present invention relates to a rearview mirror assembly which is different from the one proposed by the first aspect only because the double-sided printed-circuit board comprised in the assembly is not necessarily at least partly rigid because furthermore it is not located necessarily perpendicularly with respect to the elongated passage unlike the assembly proposed by the first aspect, therefore it is able to adopt other positions with the desired degree of inclination according to the desired illumination application, and because the feed and control system to which the board is connected is not necessarily located inside said automotive vehicle, being able to be located in the housing of the proposed assembly for example.
In a third aspect, the present invention relates to a rearview mirror assembly of an automotive vehicle with a flashing device of the type comprising a rearview mirror housing with an opening in which said rear view mirror is arranged. At least part of the outer perimeter of said housing which is in the part opposite to said opening, is recessed towards the inside of the housing defining an elongated passage delimited between an inner wall or the bottom of said recess and an outer wall acting as a back-to-back cover which is at least partly transparent, said elongated passage in turn defining a path.
Said assembly proposed by the third aspect of the present invention further comprises a double-sided printed-circuit board like the one proposed by the second aspect of the invention and located in the same manner with respect to the mentioned elongated passage so as to achieve projecting light forwards and backwards in the same manner as in the assemblies proposed by the first and second aspects of the invention. The printed-circuit board is connected to a feed and control system in the same manner as the board proposed by the second aspect of the invention.
The assembly is designed such that, for all three proposed aspects, both the mentioned desired horizontal and vertical angles and light intensity comply with the stipulated regulation in each country for its corresponding homologation, either thanks to the arrangement of the LEDs on the board, to the characteristics of emission and/or to the nature thereof and/or to suitable optics included in the assembly.
Other features of the invention will be clearer from the following description of some embodiments illustrated in the attached drawings and which must be considered as illustrative and non-limiting. In the drawings:
As shown in the figures, the rearview mirror assembly of an automotive vehicle with a flashing device proposed by the present invention comprises, according to the first and second aspects of the invention, a rearview mirror housing 1 with a first opening 3 in which said rearview mirror 14 is arranged and a second opening 4 defined in at least part of the rest of the outer perimeter of said housing 1, which is in the part opposite to the first opening 3.
Said assembly which can be observed as a whole in
In a third aspect, the invention also comprises a rearview mirror assembly (not shown) which unlike those proposed by the first and second aspects does not have the mentioned outer module 5 and therefore, nor the mentioned second opening 4 which closed said outer module 5, at least part of the outer perimeter of said housing 1 which is in the part opposite to said opening 3 being depressed towards the inside of the housing 1, defining said elongated passage 7 delimited between an inner wall or the bottom 15 of said recess and an outer wall acting as the cover 8 which is at least partly transparent, said elongated passage 7 defining a path.
As mentioned above, said assembly proposed by the third aspect of the invention further comprises a double-sided printed-circuit board 9 like the one proposed by the second aspect of the invention and located in the same manner with respect to the mentioned elongated passage so as to achieve projecting light forwards and backwards in the same manner as in the assemblies proposed by the first and second aspects of the invention.
The following explanation refers to the three aspects of the invention.
Evidently, only one or more light emitting components can be arranged in only one of the sides C1, C2 of the printed-circuit board 9 but this will clearly mean a much lower performance.
For the preferred embodiment shown in
Obviously it is also possible (see
For another embodiment, said light emitting components 10, 12 are placed on said printed-circuit board 9 in a certain manner in relation to the elongated passage 7 so that, in combination with some emission characteristics thereof, they project light outside with said desired horizontal H and vertical V angles, generally to achieve the corresponding homologation of the proposed assembly.
In a further embodiment, the assembly additionally comprises optical means which, independently or in collaboration with said manner in which the light emitting components 10, 11, 12 are arranged and the mentioned emission characteristics thereof, make the light emitting components 10, 12 of one of the sides C1 of the printed-circuit board 9 project light backwards with said desired horizontal H and vertical V angles, and the light emitting component 11 of the other side C2 project light forwards, the light passing through the optical means in both cases.
Said desired horizontal angle H (see
As can also be seen in
A further requirement necessary to comply with said homologation is the one that refers to luminous intensity which in Europe must be at least 0.5 candle power.
Said two light emitting components 10, 12 of said side C1 of the printed-circuit board 9 are spaced and located one above the other with respect to a vertical plane, as well as spaced and separated from one another with respect to a horizontal plane. Specifically, for the embodiment shown in
Said printed-circuit board 9 is preferably completely rigid and also preferably includes a circuitry for protecting said light emitting components 10, 11 formed by at least some resistances arranged in the printed-circuit board 9 by carbon laydown although they could be welded thereto for other embodiments.
Said optical means comprise plastic parts acting as optics which for one embodiment, are at least one lens which forms part of the light emitting components themselves, preferably LEDs, and/or for another embodiment is arranged thereupon after the injection of the lens in an insulating material likewise injected on the printed-circuit board 9, thus forming a type of tablet.
In another additional embodiment, said plastic parts form at least part of said cover 8 and are at least one lens and/or configurations of a prismatic geometry.
Said optical means further comprise reflector elements arranged in at least part of the inner surface of the inner wall 15.
In
For the embodiment shown in
Additionally said compensation optical means also comprise a thickened portion 17 of the cover 8 from said transverse channel 16 to the end of the cover 8.
Preferably (see
It is interesting to emphasize that the printed-circuit board 9 comprises means for protection against weathering which are preferably materialized in the form of at least one material of those included in the group formed by: epoxy resin, polyamide, thermoplastic polyurethane, thermoplastic elastomer, rubber or any other suitable material.
Said material coats at least part of said printed-circuit board 9, specifically for a preferred embodiment, this material coats the entire printed-circuit board 9 except for the areas occupied by the light emitting components 10, 11, 12 so as to not make light emission difficult. Another embodiment contemplates the mentioned material being transparent; in this case being able to coat the entire board 9 without making said light emission difficult.
For another embodiment, the proposed assembly comprises a circuit 30 (see
For an embodiment which is not shown, said circuit 30 includes a circuitry for protecting and/or polarizing said light emitting components 10, 11, 12, formed by a series of electronic components among which there is at least one of the group formed by: resistances and diodes, thus achieving that the printed-circuit board 9 can have more reduced dimensions since it does not need to incorporate more than the LEDs 10, 11, 12, the remaining components being incorporated in the circuit 30.
As can be seen in
Said flexible board 20 comprises a connector 13a which can be coupled to another corresponding connector (not shown) electrically connected with said feed and control system to feed and control said light emitting components or LEDs, 10, 11, 12.
For one embodiment, said flexible board 20 and/or said circuit 30 are formed or at least partly coated by a good heat sink material.
For another embodiment, the printed-circuit board 9 and/or the flexible board 20 comprise an electrically insulating dielectric layer of low thermal impedance electrically connected to said light emitting components 10, 11, 12 and/or to said circuit 30 and joined to a metallic substrate in order to dissipate the heat from said light emitting components 10, 11, 12 and/or said circuit 30.
Such printed-circuit boards incorporating a circuit layer (such as copper), a dielectric layer like the one mentioned and a metallic substrate are the ones known as T-Clad®, for example.
For another embodiment, the flexible board 20 and/or the associated circuit 30 and/or the printed-circuit board 9 are connected to an external heat sink element.
With the use of the flexible board 20, it is achieved that the heat is taken away from the LEDs 10, 11, 12 and from the areas in which they are housed and which are transverse to the elongated passage 7, either due to the commented arrangement of the electronic components which can generate heat in the end 20b furthest from the board 9 and/or due to the heat dissipation carried out by the latter according to any of the commented embodiments or a combination thereof.
This is extremely important because the heat may affect the emission characteristics of the LEDs, even the color thereof, which if this is the case, will mean a possible non compliance with the homologation for the compliance of which they had been initially designed.
As shown in
With the purpose of carrying out said introduction and according to the three aspects of the invention, the proposed assembly comprises a support and positioning semi-capsule 24 (see
Said semi-capsule 24 comprises holding means to hold said printed-circuit board 9 by an end portion 9a.
Specifically for the semi-capsule shown in
As can be seen on
On the other hand, for the embodiment illustrated by
The proposed semi-capsule 24 comprises through holes 27 (see
As can be seen in
For one embodiment (see
For another embodiment (
Obviously said fixing procedures are merely examples of all the possible procedures which could be applied with the assurance that the fixing was suitable and provided an acceptable tightness, as is achieved for the two embodiments illustrated in
A person skilled in the art could introduce changes and modifications in the described embodiments without departing from the scope of the invention as it is defined in the enclosed claims.
Number | Date | Country | Kind |
---|---|---|---|
200400564 | Mar 2004 | ES | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
---|---|---|---|---|
PCT/IB2005/000525 | 3/1/2005 | WO | 00 | 10/8/2007 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2005/084120 | 9/15/2005 | WO | A |
Number | Name | Date | Kind |
---|---|---|---|
6099153 | Zimmermann et al. | Aug 2000 | A |
6139171 | Waldmann | Oct 2000 | A |
6893146 | Fiegler et al. | May 2005 | B2 |
20010046136 | Weber et al. | Nov 2001 | A1 |
20040008519 | Todaka et al. | Jan 2004 | A1 |
Number | Date | Country |
---|---|---|
2 173 429 | Oct 2002 | ES |
2000-198389 | Jul 2000 | JP |
WO 0208015 | Jan 2002 | WO |
WO 03078203 | Sep 2003 | WO |
Number | Date | Country | |
---|---|---|---|
20080130306 A1 | Jun 2008 | US |