CN113453955A - Mounting unit with at least one optical waveguide and at least one printed circuit board having at least one lighting means, and optical waveguide for producing such a mounting unit - Google Patents
Mounting unit with at least one optical waveguide and at least one printed circuit board having at least one lighting means, and optical waveguide for producing such a mounting unit Download PDFInfo
- Publication number
- CN113453955A CN113453955A CN202080015219.2A CN202080015219A CN113453955A CN 113453955 A CN113453955 A CN 113453955A CN 202080015219 A CN202080015219 A CN 202080015219A CN 113453955 A CN113453955 A CN 113453955A
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- China
- Prior art keywords
- circuit board
- optical waveguide
- mounting
- leg
- mounting unit
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/2696—Mounting of devices using LEDs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/2661—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on parts having other functions
- B60Q1/2665—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on parts having other functions on rear-view mirrors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/50—Mounting arrangements
- B60Q3/51—Mounting arrangements for mounting lighting devices onto vehicle interior, e.g. onto ceiling or floor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
- B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
- B60Q3/64—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
- B60Q3/78—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for generating luminous strips, e.g. for marking trim component edges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2106/00—Interior vehicle lighting devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Optical Couplings Of Light Guides (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to a mounting unit (1) having at least one optical waveguide (2) and at least one circuit board (4) having at least one lighting means, and to an optical waveguide (2). The printed circuit board (4) and the optical waveguide (2) are directly fixed to each other. The invention proposes the use of a fastening element (23, 29) which is integrally connected to the light guide (2). The circuit board (4) is designed in such a way that it can be easily introduced into its installation position on the optical fiber (2) in a single installation direction and fixed in the installation position.
Description
The invention relates to a mounting unit having at least one optical waveguide and at least one circuit board having at least one lighting means. The invention also relates to a light guide for producing such a mounting unit.
A mounting unit having the features of the preamble of claim 1 is known from document US 8662723B 2. In particular, this document describes a mounting unit for a driving direction indicator, which is mounted in the housing of a rear view mirror. To manufacture the mounting unit, a lighting device in the form of an LED (light emitting diode) is mounted on a circuit board, which is then connected to the photoconductor to obtain a defined position of the LED relative to the photoconductor. The circuit board then forms, together with the light guide, the cover and the housing, a travel direction indicator. The connection between the circuit board and the optical waveguide is realized in particular by a guide means in the circuit board, into which a projection of the optical waveguide engages.
US 8164016B 2 describes a start/stop switch for a motor vehicle, which likewise has a mounting unit consisting of a circuit board with a plurality of LEDs and light conductors assigned to the LEDs. The connection between the circuit board and the optical waveguide is realized by at least one latching connection.
The object of the present invention is to provide an alternative mounting unit having the features of the preamble of claim 1, which allows a connection between the optical fiber and the circuit board in a simple manner.
The object of the present invention is also to provide a light guide which is suitable for producing such a mounting unit.
This object is achieved by a mounting unit having the features of claim 1 and by an optical waveguide having the features of claim 10. Advantageous refinements or improvements of the invention emerge from the respective dependent claims.
The invention starts from a mounting unit having at least one optical waveguide and at least one printed circuit board having at least one lighting means. In the mounting unit, the circuit board and the optical conductor are fixed to each other.
According to the invention, it is now proposed that the optical waveguide has at least one first mounting element for fixing the circuit board to the optical waveguide in a first spatial direction. At least one second mounting element of the optical waveguide is used for fixing the circuit board on the optical waveguide along a second spatial direction extending perpendicular to the first spatial direction. The mounting element is connected integrally (i.e. materially) to the light guide. In other words, the circuit board and the optical conductor are directly fixed to each other. The first mounting element allows, only as such (or only as seen by itself), a movement of the circuit board relative to the optical waveguide in the second spatial direction. In contrast, the second mounting element, for its part, allows a movement of the circuit board relative to the optical waveguide in the first spatial direction.
This achieves the basic requirements for a simple implementation of a mounting unit consisting of a light guide and a circuit board. In particular, the circuit board can thereby be brought into its installation position in a simple manner.
Alternatively, the above-mentioned object can be achieved in that at least two mounting elements are likewise integrally connected to the light guide. The mounting elements each have an arm which projects from the base body of the optical waveguide in the first spatial direction. The arm is provided with a latching flange at its free end. At least two shapes of the optical waveguide are present, which each merge into a punch-like (or pin-like, bayonet-like) projection that protrudes through an opening in the circuit board. On the side of the printed circuit board facing away from the shaping, the punch-like projection merges into the widened portion. The circuit board is fixed between the forming portion and the widening portion in three mutually perpendicular directions.
The widening is preferably achieved by means of a so-called hot-pressing method. For this purpose, the punch-like projection is heated and subjected to pressure, which produces the widening.
In a first refinement of the invention, the mounting element is elastically designed in such a way that it presses the printed circuit board with a portion under prestress. This facilitates that the circuit board can be held in its installation position in a simple manner and with certainty or definitively.
In a further most advantageous embodiment of the inventive concept, the mounting element can be L-shaped in cross section. All the mounting elements have a first L-leg projecting from the base body of the optical waveguide and a second L-leg opposite the opening in the base body of the optical waveguide at a distance.
This constitutes a prerequisite for easy insertion of the circuit board into the mounting element of the optical waveguide. This also contributes to easier producibility of the light guide.
It is particularly expedient if the first L-leg points in the direction of the first spatial direction and the second L-leg points in the direction of the second spatial direction. In this way, the circuit board can be inserted into the mounting element in a simple manner in the direction of the second spatial direction, wherein the first L-leg can also serve as a stop in the second spatial direction. A stop in the first spatial direction can be provided by the second L-leg.
According to a further refinement, it is proposed that the first mounting element is located in a first cross-sectional region of the optical waveguide and, viewed in the direction of the longitudinal extent of the optical waveguide, in a cross-sectional region adjacent to the first cross-sectional region there is at least one shaped section of the optical waveguide which, on the side facing away from the second L-leg, makes contact with the circuit board.
The fixing of the circuit board in the first spatial direction can thereby be optimized. The form can provide a mating stop for the second L-leg of the first mounting element, in particular in a simple manner.
In order to increase the security of the fastening of the circuit board in the second spatial direction, it is proposed that the second mounting element engages with a portion into an opening of the circuit board.
In this case, it is expedient for the second mounting element to engage with a latching-like projection of its second L-leg in an opening of the circuit board. This allows a simple, snap-fit insertion of the circuit board into the mounting element, wherein a secure fit of the circuit board in the mounting unit is ensured.
In order to ensure good light efficiency of the light emitted by the illumination device, the printed circuit board is fastened to the optical waveguide such that the illumination device is opposite, preferably directly opposite or in close contact with the light input surface of the optical waveguide. Viewed in the second spatial direction, the light input surface adjoins the aforementioned opening in the base body of the optical waveguide.
It has furthermore proven expedient for a third mounting element to be present, which serves to fix the circuit board not only in the second spatial direction, but also in a third spatial direction. Here, the third spatial direction is perpendicular to the other spatial directions. In this way, centering (or centering) of the circuit board in the third spatial direction can be achieved, wherein compensation of manufacturing tolerances in the third spatial direction is still achieved by the second mounting element.
As already mentioned, the invention is also intended to provide a light guide for producing a mounting unit according to the invention. The light guide is characterized in that it has a longitudinal extension. The light guide is therefore configured as a whole in the form of a strip. It may well have a length of one meter or more. At least one cross-sectional area of the light guide body is provided with a first mounting element and at least one second cross-sectional area is provided with a second mounting element. The mounting element is connected integrally to the light guide and is L-shaped in cross section. The first L-leg protrudes from the base body of the optical waveguide. The second L-leg is opposite the opening in the base body of the optical waveguide with a distance. The first L-leg points in a direction of a first spatial direction and the second L-leg points in a direction of a second spatial direction perpendicular to the first spatial direction.
This makes it possible to mount the circuit board on the optical waveguide particularly easily.
The light guide can be modified in that a plurality of cross-sectional areas with first mounting elements and a plurality of cross-sectional areas with second mounting elements are present.
The production of the mounting unit according to the invention, which is configured to be elongated, is thereby achieved. For example, it is conceivable to configure the light guide, the circuit board to be mounted, together with the lighting means and the entire mounting unit in an elongated manner such that they extend over the entire or almost the entire length of the dashboard of the motor vehicle.
Finally, a motor vehicle having at least one mounting unit according to the invention is also claimed with the invention. The mounting unit preferably extends over the entire length or at least over a large part of the length of the dashboard of the motor vehicle.
This constitutes a basic prerequisite for the highly inventive interior lighting of motor vehicles.
Preferred embodiments of the present invention are shown in the drawings and are further set forth in the description below with reference to the drawings. Thereby also demonstrating other advantages of the present invention. Like reference numbers, even among different figures, refer to identical, similar, or functionally identical components. Corresponding or similar features and advantages are achieved even when not repeatedly stated or referred to herein. The drawings are not, or at least not always, to scale. In the drawings, the scale or spacing is exaggerated in order to clearly highlight features of the embodiments.
In the drawings, there are shown schematically:
fig. 1 shows a part of a mounting unit, which is composed of a light conductor and a circuit board,
figure 2 shows a cross-sectional view according to section line II of figure 1,
figure 3 shows a cross-sectional view according to section line III of figure 1,
figure 4 shows a cross-sectional view according to section line IV of figure 1,
fig. 5 shows a sectional profile similar to the previous sectional view, however for an alternative installation unit made of optical conductors and circuit boards,
fig. 6 shows a similar cut-away course as the sectional view of fig. 5, however on other cross-sections of alternative mounting units,
fig. 7 shows a motor vehicle with a mounting unit according to the invention fitted in the dashboard region thereof.
Reference is first made to fig. 1.
The mounting unit 1 is shown in perspective in the drawing with a length extension L, exactly about half of its length. The mounting unit 1 is thus designed to be elongated and is formed by an elongated optical waveguide 2, which is connected to a likewise elongated printed circuit board 4.
The mounting unit 1 is intended to be mounted in the interior of a motor vehicle K, specifically in the transition region between the dashboard panel 5 and the windshield 3 (see also fig. 7). The mounting unit 1 is therefore slightly curved in contour, in particular of sickle-shaped design.
In order to easily fix the circuit board 4 to the light guide 2, the light guide 2 has a plurality of mounting elements 23 and a plurality of mounting elements 29.
The mounting elements 23 and 29 provide the prerequisite for the circuit board 4 to be quickly, easily and safely connected to the optical fiber 2 to the mounting unit 1 or to be brought into its mounting position on the optical fiber 2.
Spatial directions X, Y and Z are indicated in the drawing. The longitudinal direction of the vehicle is marked by X, the transverse direction of the vehicle is marked by Y, and the height direction is marked by Z (see also fig. 7).
In the exemplary embodiment shown, the mounting or guiding of the circuit board 4 relative to the optical waveguide 2 takes place in the X direction.
As will be described in more detail below, the mounting element 23 facilitates the fixing of the circuit board 4 on the optical waveguide 2 in the Z direction. The mounting elements 29 are used, on the other hand, for fixing the circuit board 4 on the optical waveguide 2 in the X direction.
An optional mounting element 23 is located in cross-sectional area Q1, which is also shown in detail below. A selected mounting element 29 is located in the cross-sectional area Q2. Cross-sectional area Q2 is also shown in detail below.
The light output surface 22 extends over the entire length of the light guide 2 for a linear light output of the light beam of the light guide 2 of a lighting device, not shown here, which is arranged uniformly distributed along the length of the light guide. This makes it possible to achieve a very inventive light image in the interior of the motor vehicle.
It is also clear that the mounting element 29 snaps into the elongated opening 43, the length of which is greater than the width of the mounting element 29. Manufacturing tolerances in the Y-direction can thereby be compensated.
Finally, the mounting element 29' snapped into the elongated opening 45 serves for centering the circuit board 4 in the Y direction relative to the light guide 2. Instead, the width of the opening 45 even corresponds approximately to the width of the mounting element 29'. This results in that, when the mounting element 29' is snapped into the opening 45 in this position, the circuit board 4 can no longer be moved in the Y direction relative to the light guide 2.
The above-mentioned cross-sectional area Q1 with the mounting element 23 located therein is shown in more detail in fig. 2. The cross-sectional profile of the light guide 2 is clearly visible here. The light guide 2 has, in cross section, an elongated, curved base body 20 with a light input face 21 and the aforementioned light output face 22.
The mounting element 23 is L-shaped in cross section and has a first L-leg 24 and a second L-leg 25. The mounting element 23 is connected to the base body 20 of the light guide 2 or to a horizontal bar adjoining it on the left in the drawing.
The first L-leg 24 is here directed essentially in the Z direction. In contrast, the second L-leg 25 points substantially in the X-direction.
Furthermore, the second L-leg 25 has a clear distance a from the opening 27 located above the L-leg 25 and is oriented substantially parallel to its longitudinal extent.
It can also be seen that the light input face 21 abuts on the opening 27 on the right side, viewed in the X direction.
The mounting element 23 is configured to be elastic, so that when the circuit board 4 is mounted, i.e. when the circuit board 4 is inserted in the mounting direction M1, the mounting element 23 can bend slightly and in the illustrated mounting position spring elastically against the underside 40 of the circuit board 4 with the second L-leg 25. The mounting direction M1 extends here substantially parallel to the X direction.
In the illustrated installation position, the first L-leg 24 can also serve as a stop for the circuit board 4 in the X direction.
A plurality of illumination means 42, which are preferably designed as light-emitting diodes, particularly preferably as RGB light-emitting diodes, are directly opposite, i.e. in the immediate vicinity of, the light input surface 21, which also extends over the length of the light guide 2, in the illustrated installation position. The light of the illumination device 42 is thus directly input into the light conductor 2 via the light input face 21.
Also visible in the figures is the formation 28a, which does not lie in the cross-sectional plane shown. The shaped portion 28a serves as a stop with respect to the upper side 41 of the inserted circuit board 4 (see also fig. 3).
In fig. 2, it can also be seen that the second L-leg 25 has a profile 26 at its free end, with the L-leg 25 pressing the underside 40 of the inserted circuit board 4 from below with the profile 26.
In this way, the circuit board 4 is held in a defined manner in the Z direction on the optical waveguide 2.
Fig. 4 shows a cross section of the mounting unit 1 in a cross-sectional area Q2, where the mounting element 29 is located. The mounting element 29 also has an L-shape in cross section with a first L-leg 30 and a second L-leg 31. The first L-leg 30 is also directed substantially in the Z-direction. The second L-leg 31 points substantially in the X-direction.
The mounting element 29 is likewise of spring-elastic design (see double arrow). At the free end of the second L-leg 31, a projection 32 is formed, which forms a latching ramp 33.
If the circuit board 4 is moved in the mounting direction M1, i.e. in the X direction, onto the mounting element 29, the front edge of the circuit board 4 comes into contact with the latching ramp 33. The second L-leg 31 is thereby displaced downward until it latches with the projection 32 into the aforementioned opening 43 in the illustrated mounting position of the circuit board 4.
The circuit board 4 is fixed to the optical waveguide 2 in the X direction in this way.
It can also be seen that the L-leg 31 is opposite the opening 27 located above it with a clear distance a. In this case, L-leg 31 is oriented so as to extend substantially parallel to the surface of opening 27.
The precondition that the circuit board 4 is introduced into the installation position on the optical fiber 2 in an easy manner by a movement in the installation direction M1 can thus be achieved by the installation elements 23 and 29. Due to the presence of the shaped portion 28a (of which preferably also a plurality is present over the length of the optical waveguide 2), the fixing of the circuit board 4 in the Z direction is additionally supported.
The openings 27 visible in fig. 2 and 4 ensure, in particular, easy demolding of the light guide 2 during its production, preferably during the injection molding process.
The mounting unit 1' according to the invention is now explained with reference to fig. 5 and 6. The mounting unit 1' is also designed to be elongate, i.e. has an elongate optical waveguide 2' and an elongate circuit board 4' connected thereto.
The cross-section shown is similar to the previous figures.
In contrast to the mounting unit 1, the mounting unit 1' has at least two mounting elements 34 spaced apart in the longitudinal direction of the mounting unit 1', which in the drawing extend downward in the Z direction from a projection extending leftward from the light guide 2' in the X direction of the base body 20. Thus, the mounting element 34 projects downward from the above-described boss portion of the base body 20.
The mounting element 34 is spring-elastic. The mounting element 34 has, in particular, a downwardly projecting arm 35, the arm 35 being configured to be spring-elastic (see double arrow). At the lower free end of the projecting arm 35 there is a latching flange 36.
On the opposite side, i.e. in the region of the continuous light input surface 21, in the longitudinal extension of the light guide 2', at least two formations 28b are formed at intervals on the base body 20, which are likewise directed downwards in the Z direction. The formation 28b transitions into a narrower, punch-like projection 28 c.
For mounting, the circuit board 4' together with the lighting device 42 only has to be moved in the mounting direction M2, which corresponds to the Z direction, in the direction of the mounting element 34 and the punch-like projection 28 c.
All the mounting elements 34 are biased to the left until the circuit board 4' reaches a mounting position, in which the latching lugs 36 engage the underside 40 of the circuit board 4' from below and the upper side 41 of the circuit board 4' rests on the shoulder formed by the profile 28b and the projection 28 c.
Finally, the end of the punch-like projection 28c projecting downwards through the opening 44 in the circuit board 4' must be widened to form a widened portion 28 d. It can preferably be achieved by the so-called hot-pressing method.
After the manufacture of the widened portion 28d is completed, the circuit board 4' is securely fixed between the shaped portion 28b and the widened portion 28d in three mutually perpendicular spatial directions X, Y and Z. Here, the opening 44 is only slightly larger than the punch-like boss 28c to ensure that the boss 28c easily passes through the opening 44.
Fig. 7 shows a motor vehicle K equipped with a mounting unit 1 or 1' according to the invention. It can be seen that the mounting unit 1 or 1' is located in the region of the windshield 3, specifically in the dashboard trim 5 adjoining the windshield 3.
The mounting unit 1 or 1' is only indicated by dashed lines. However, a slightly curved sickle-shaped profile is visible. In its longitudinal extension L, the mounting unit 1 or 1' preferably extends over the entire length of the instrument panel 5.
The light output face 22 thus shown also extends over the entire length of the instrument panel 5. The light generated by the illumination means 42 arranged over the entire length of the light input surface of the light guide can thus be emitted in a unique manner into the interior I of the motor vehicle K.
List of reference numerals:
1. 1' installation unit
2. 2' optical conductor
3 windscreen
4. 4' circuit board
5 dashboard decorative board
20 base body
21 light input surface
22 light output face
23 first mounting element
24 first L leg
25 second L leg
26 forming section
27 opening
28a forming part
28b forming part
28c punch-shaped projection for hot pressing
28d widening by hot pressing
29. 29' second mounting element
30 first L side leg
31 second L leg
32 projection
33 latch ramp
34 mounting element
35 projecting arm
36 snap-lock flange
40 lower side
41 upper side
42 illumination device
43 opening
44 opening
45 opening
a net distance
I inner space
K Motor vehicle
L longitudinal extension
M1 and M2 installation directions
Cross-sectional areas of Q1, Q2
Direction of X space
Direction of Y space
Z spatial direction
Claims (12)
1. A mounting unit (1; 1') having at least one optical waveguide (2; 2') and at least one circuit board (4; 4') having at least one lighting means (42), wherein the circuit board (4; 4') and the optical waveguide (2; 2') are fixed to one another, characterized in that the optical waveguide (1) has at least one first mounting element (23) for fixing the circuit board (4) to the optical waveguide (2) in a first spatial direction (Z) and at least one second mounting element (29) for fixing the circuit board (4) to the optical waveguide (2) in a second spatial direction (X) extending perpendicularly to the first spatial direction (Z), wherein the mounting elements (23, 29) are integrally connected to the optical waveguide (2) and the first mounting element (23) is connected only to itself The circuit board (4) is allowed to move relative to the optical waveguide (2) along a second spatial direction (X), the second mounting element (29) only allows the circuit board (4) to move relative to the optical waveguide (2) along the first spatial direction (Z) or at least two mounting elements (34) are integrally connected with the optical waveguide (2'), the at least two mounting elements respectively comprise an arm (35) protruding from the base body (20) of the optical waveguide (2') along the first spatial direction (Z), the arm is provided with a locking flange (36) at the free end of the arm, wherein at least two forming parts (28b) of the circuit board (2') are provided, the forming parts respectively transition into a punch-shaped protruding part (28c) which protrudes through an opening (44) in the circuit board (4') and passes over a side (40) of the circuit board (4') facing away from the forming part (28b) Into a widened portion (28d), wherein the circuit board (4') is fixed between the shaped portion (28b) and the widened portion (28d) in three mutually perpendicular directions (X, Y, Z).
2. Mounting unit (1) according to claim 1, characterised in that the mounting element (23, 29, 34) is configured elastically such that it presses the circuit board (4) with a portion under prestress.
3. The mounting unit (1) according to claim 1 or 2, wherein the mounting element (23, 29) is L-shaped in cross section, having a first L-leg (24; 30) protruding from the base body (20) of the light guide (2) and a second L-leg (25; 31) opposite the opening (27) in the base body (20) of the light guide (2) at a distance (a).
4. Mounting unit (1) according to claim 3, characterized in that the first L-leg (24; 30) points in the direction of the first spatial direction (Z) and the second L-leg (25; 31) points in the direction of the second spatial direction (X).
5. Mounting unit (1) according to claim 3 or 4, characterised in that the first mounting element (23) is located in a first cross-sectional area (Q1) of the light guide (2) and, viewed in the direction of the longitudinal extension (L) of the light guide (2), in a cross-sectional area adjacent to the first cross-sectional area (Q1) there is at least one shaped section (28a) of the light guide (2) which, on the side (41) facing away from the second L-leg (25), is in contact with the circuit board (4).
6. Mounting unit (1) according to one of the preceding claims, characterized in that the second mounting element (29) snaps with a portion into an opening (43) in the circuit board (2).
7. Mounting unit (1) according to one of the preceding claims 3 to 6, characterised in that the second mounting element (29) snaps into the opening (43) of the circuit board (2) with the latching projection (32) of its second L-leg (31).
8. The mounting unit (1) according to one of the preceding claims 3 to 7, characterised in that the circuit board (4) is fixed on the optical conductor (2) such that the illumination means (42) is opposite a light input face (21) of the optical conductor (2), wherein the light input face (21) abuts on an opening (27) in a base body (20) of the optical conductor (2) viewed in the direction of the second spatial direction (X).
9. Mounting unit (1) according to one of the preceding claims, characterized in that a third mounting element (29') is present for fixing the circuit board (2) not only in the second spatial direction (X) but also in a third spatial direction (Y), wherein the third spatial direction (Y) is perpendicular to the other spatial directions (Z, X).
10. A light guide (2) for producing a mounting unit (1) as claimed in one of the preceding claims, characterized in that the light guide (2) has a longitudinal extension (L), wherein at least one cross-sectional area (Q1) is provided with a first mounting element (23) and at least one second cross-sectional area (Q2) is provided with a second mounting element (29), wherein the mounting elements (23, 29) are connected integrally to the light guide (2) and are formed in an L-shape in cross-section, having a first L-leg (24; 30) protruding from the base body (20) of the light guide (2) and a second L-leg (25; 31) opposite the opening (27) in the base body (20) of the light guide (2) at a distance (a), wherein the first L-leg (24; 30) points in the direction of the first spatial direction (Z) and the second L-leg (25; 31) points in a second spatial direction perpendicular to the first spatial direction (Z) Direction (X).
11. Optical waveguide body (2) according to claim 10, characterized in that there are a plurality of cross-sectional areas (Q1) with first mounting elements (23) and a plurality of cross-sectional areas (Q2) with second mounting elements (29).
12. A motor vehicle, characterized in that the motor vehicle has at least one mounting unit (1; 1') according to one of claims 1 to 9.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019203501.9A DE102019203501A1 (en) | 2019-03-14 | 2019-03-14 | Mounting unit with at least one light guide and at least one printed circuit board having at least one lighting means and light guide for producing such an assembly unit |
| DE102019203501.9 | 2019-03-14 | ||
| PCT/EP2020/055680 WO2020182572A1 (en) | 2019-03-14 | 2020-03-04 | Assembly unit comprising at least one lightguide and at least one circuit board that has at least one lamp, and lightguide for producing such an assembly unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113453955A true CN113453955A (en) | 2021-09-28 |
Family
ID=70008457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080015219.2A Pending CN113453955A (en) | 2019-03-14 | 2020-03-04 | Mounting unit with at least one optical waveguide and at least one printed circuit board having at least one lighting means, and optical waveguide for producing such a mounting unit |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN113453955A (en) |
| DE (1) | DE102019203501A1 (en) |
| WO (1) | WO2020182572A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050270794A1 (en) * | 2004-04-28 | 2005-12-08 | Hidefumi Okamoto | Illumination device |
| DE102006002322A1 (en) * | 2006-01-18 | 2007-12-27 | Hella Kgaa Hueck & Co. | Lighting unit e.g. elongated auxiliary brake light, for vehicle, has lighting element positioned on carrier module, and attaching unit provided such that attachment module is connected with conducting element, module and/or side wall |
| WO2012059852A1 (en) * | 2010-11-05 | 2012-05-10 | Valeo Vision | Lighting or signalling device for a motor vehicle, comprising a light guide layer |
| US20160245472A1 (en) * | 2015-02-25 | 2016-08-25 | Hyundai Mobis Co., Ltd. | Lighting apparatus for automobile |
| CN106458080A (en) * | 2014-06-23 | 2017-02-22 | 大众汽车有限公司 | Motor vehicle lighting device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007035241B4 (en) | 2007-07-25 | 2017-01-19 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | switching device |
| EP2325046B1 (en) | 2009-11-17 | 2016-03-02 | SMR Patents S.à.r.l. | Method to assembly a turn signal indicator module and turn signal indicator sub-module |
| JP6744196B2 (en) * | 2016-10-31 | 2020-08-19 | スタンレー電気株式会社 | Vehicle lighting |
| DE202017100874U1 (en) * | 2017-02-17 | 2018-05-18 | Lisa Dräxlmaier GmbH | Lighting device for an interior part |
-
2019
- 2019-03-14 DE DE102019203501.9A patent/DE102019203501A1/en active Granted
-
2020
- 2020-03-04 WO PCT/EP2020/055680 patent/WO2020182572A1/en active Application Filing
- 2020-03-04 CN CN202080015219.2A patent/CN113453955A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050270794A1 (en) * | 2004-04-28 | 2005-12-08 | Hidefumi Okamoto | Illumination device |
| DE102006002322A1 (en) * | 2006-01-18 | 2007-12-27 | Hella Kgaa Hueck & Co. | Lighting unit e.g. elongated auxiliary brake light, for vehicle, has lighting element positioned on carrier module, and attaching unit provided such that attachment module is connected with conducting element, module and/or side wall |
| WO2012059852A1 (en) * | 2010-11-05 | 2012-05-10 | Valeo Vision | Lighting or signalling device for a motor vehicle, comprising a light guide layer |
| CN106458080A (en) * | 2014-06-23 | 2017-02-22 | 大众汽车有限公司 | Motor vehicle lighting device |
| US20160245472A1 (en) * | 2015-02-25 | 2016-08-25 | Hyundai Mobis Co., Ltd. | Lighting apparatus for automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019203501A1 (en) | 2020-09-17 |
| WO2020182572A1 (en) | 2020-09-17 |
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