JP2010254056A - Vehicular led lamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular LED lamp in which the color of a flexible substrate is not seen from the outside even with the specification of using a transparent inner lens or with the specification of using no inner lens, its appearance is excellent, and the tone of the inner lens is not limited. <P>SOLUTION: In a door mirror turn lamp (the vehicular LED lamp) 1, a flexible substrate 5 with at least an LED 6 being mounted thereon is stored in a space demarcated by a housing 2 and an outer lens 3 to cover its front opening part in a fixed state to the housing 2. A front face of the flexible substrate 5 is covered by a film 10 of the color different from that of the flexible substrate 5. The film 10 is constituted by executing the printing of the color on a transparent base material. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle LED lamp using an LED mounted on a flexible substrate as a light source.

  At the front of a vehicle such as a passenger car, a headlamp for night illumination, a turn lamp for displaying the direction in which the vehicle bends, a vehicle width light for allowing oncoming vehicles and pedestrians to recognize the width of the vehicle body at night, etc. Is provided.

  By the way, in recent years, door mirrors attached to the left and right doors occupy the mainstream as rear view mirrors in passenger cars and the like, and in order to improve safety, turn lamps are also provided on the door mirrors. (For example, refer to Patent Document 1).

  Here, an example of a conventional door mirror turn lamp is shown in FIGS.

  8 is a front view of a conventional door mirror turn lamp, FIG. 9 is a sectional view taken along line EE of FIG. 8, FIG. 10 is an exploded perspective view of the door mirror turn lamp, and the door mirror turn lamp 101 shown in FIG. The front opening of the housing 102 is covered with a transparent outer lens 103 that circulates in an arc from the side of the vehicle to the rear. In the space defined by the housing 102 and the outer lens 103 covering the front surface of the housing 102, an inner lens (extension) 104 and a flexible substrate 105 on which aluminum is deposited are accommodated. LED 106 which is a light source is mounted.

  Here, the flexible substrate 105 is a thin flexible substrate having a resin such as polyimide as a base material. As shown in FIG. 10, a plurality of fitting holes 108 are formed in the flexible substrate 105. Then, by inserting a plurality of pin boss-like fitting protrusions 109 projecting from the bottom surface of the housing 102 into these fitting holes 108, the flexible substrate 105 is placed on the bottom surface of the housing 102 as shown in FIG. 9. It is fixed so that it sticks along the shape.

JP 2004-001710 A

  By the way, since the outer lens 103 of the door mirror turn lamp 101 shown in FIGS. 8 to 10 is transparent, when the color of the inner lens 104 is made transparent or when the inner lens 104 is not used, the inside can be seen, such as polyimide. There is a problem that the intrinsic color (orange), the circuit, the mounting component, and the like of the flexible substrate 105 that uses the resin as a base material are visible from the outside, and the appearance is deteriorated.

  In order to solve the above-mentioned problem, it is necessary to use a semi-transparent material for the inner lens 104, so that the color tone of the inner lens 104 is limited.

  The present invention has been made in view of the above problems, and even if the purpose is a specification using a transparent inner lens or a specification not using an inner lens, the color of the flexible substrate is not visible from the outside. An object of the present invention is to provide a vehicle LED lamp that has a good appearance and is not limited by the color tone of the inner lens.

  In order to achieve the above object, according to the first aspect of the present invention, in the space defined by the housing and the outer lens covering the front opening thereof, at least a flexible board on which the LED is mounted is accommodated in a state fixed to the housing. In the vehicular LED lamp, the front surface of the flexible substrate is covered with a colored film different from the flexible substrate.

  According to a second aspect of the present invention, in the first aspect of the present invention, the film is formed by printing a chromatic color on a transparent substrate.

  A third aspect of the present invention is the vehicle LED lamp according to the first or second aspect, wherein a hook for preventing the film from dropping is formed on the housing in the first or second aspect.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein an inner lens is arranged inside the outer lens in a space defined by the housing and the outer lens, and the inner lens is arranged. The film is held together with the flexible substrate by a part of the housing and the housing.

  According to the first aspect of the present invention, since the front surface of the flexible substrate is covered with a colored film different from the flexible substrate, even if the specification uses a transparent inner lens or does not use an inner lens, the flexible substrate is flexible. The color of the substrate is not visible from the outside, the appearance of the LED lamp is not hindered by the flexible substrate, and the color of the inner lens is not limited by the color of the flexible substrate. Also, in the case of a specification that does not use an inner lens, the lamp body can be designed thinner than in the case of the specification that uses it.

  According to the second aspect of the present invention, a film having a desired color can be easily and freely modulated by printing a chromatic color on a transparent substrate. Further, since the color of the base material is transparent, the color of the base material is not reflected in the appearance of the printing ground.

  According to the third aspect of the present invention, the falling of the film fixed to the housing is reliably prevented by the dropping preventing hook formed on the housing.

  According to the invention described in claim 4, since the film is sandwiched with the flexible substrate by a part of the inner lens disposed inside the outer lens and the housing, the film and the flexible substrate are reliably prevented from falling off the housing. It is.

The exploded perspective view of the door mirror turn lamp concerning the present invention It is a front view of the door mirror turn lamp concerning the present invention. It is the sectional view on the AA line of FIG. It is the B section enlarged detail drawing of FIG. It is CC sectional view taken on the line of FIG. FIG. 6 is an enlarged detail view of a D part in FIG. 5. It is a fragmentary sectional view which shows the layer structure of a film. It is a front view of the conventional door mirror turn lamp. It is the EE sectional view taken on the line of FIG. It is a disassembled perspective view of the conventional door mirror turn lamp.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is an exploded perspective view of a door mirror turn lamp according to the present invention, FIG. 2 is a front view of the door mirror lamp, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, and FIG. 5 is a cross-sectional view taken along the line CC of FIG. 2, FIG. 6 is an enlarged detail view of a portion D of FIG. 5, and FIG. 7 is a partial cross-sectional view showing the layer structure of the film.

  A door mirror turn lamp 1 as an embodiment of a vehicle LED lamp according to the present invention is attached to a front door (not shown) of a vehicle and fulfills a function of displaying a turning direction of the vehicle by blinking light. In this embodiment, the door mirror turn lamp 1 attached to the front door on the left side of the vehicle will be described, but the basic configuration of the door mirror turn lamp attached to the right side which is the opposite side is the same as that on the left side. Illustration and explanation of this are omitted.

  The door mirror turn lamp 1 according to the present invention includes a housing 2, and a front opening of the housing 2 is covered with a transparent outer lens 3 that circulates in an arc shape from the side of the vehicle toward the rear. A transparent inner lens (extension) 4 and a flexible flexible substrate 5 are accommodated in a space defined by the housing 2 and the outer lens 3 that covers the front opening of the housing 2. The top and bottom two side-facing LEDs 6 are mounted, and the front-facing LED 7 is mounted at the center.

  The flexible substrate 5 is a thin flexible substrate based on a resin such as polyimide. As shown in FIG. 1, a plurality of fitting holes 8 are formed in the flexible substrate 5. By inserting a plurality of pin boss-like fitting protrusions 9 projecting from the bottom surface of the housing 2 into the joint hole 8, the flexible substrate 5 has the shape of the bottom surface of the housing 2 as shown in FIGS. It is fixed so that it sticks along. The flexible substrate 5 is electrically connected to a battery (not shown).

  The inner lens 4 is formed in an arcuate curved shape so as to be along the inner surface of the outer lens 3. Although not shown, a lens cut for light distribution is provided on the outer end of the inner lens 4 facing the side-facing LED 6. Is formed. Similarly, a lens cut for light distribution is formed at a portion of the outer end portion of the outer lens 3 facing the side-facing LED 6. Note that a fish-eye Fresnel cut or a flute cut is adopted as the lens cut formed on each of the outer lens 3 and the inner lens 4.

  Thus, in the door mirror turn lamp 1 according to the present invention, the front surface of the flexible substrate 5 is covered with a colored film 10 different from the flexible substrate 5. Here, as shown in FIG. 7, the film 10 is configured by forming a printing layer 10 </ b> B formed by printing a chromatic color on a transparent substrate 10 </ b> A, and the thickness thereof is 0.05 mm to 0.1 mm. Is set. By configuring the film 10 in this way, a film 10 having a desired color can be easily obtained.

  By the way, as a material of the film 10, PET, paper, or the like is used for the base material 10A, and both the base material 10A and the printing layer 10B have a heat resistance temperature of 230 ° C. or higher, and preferably have high weather resistance. . The color of the film 10 can be freely modulated. In particular, white and silver are advantageous for reflection and light distribution, blue is complementary to the lighting color (amber color) and can be easily lit / not lit, and black particularly hides the color tone of the flexible substrate 5. easy.

  The film 10 is formed with two rectangular fitting holes 11, and the film 10 fits the front-facing LED 7 mounted on the flexible substrate 5 into the fitting hole 11 formed in the film 10. Thus, the flexible substrate 5 fixed to the bottom surface of the housing 2 is fixed so as to cover the surface thereof. In this case, since the film 10 is as thin as 0.05 mm to 0.1 mm and can be easily deformed, the film 10 is deformed following the shape of the bottom surface of the housing 2 and the flexible substrate 5 fixed thereto. In close contact with the surface of the flexible substrate 5, the surface is covered from the front side. Further, since the film 10 is thin, the door mirror turn lamp 1 does not become thick due to the addition of the film 10, and the door mirror turn lamp 1 can be made thin.

  The shape of the film 10 is the same as that of the flexible substrate 5. Therefore, the entire front surface of the flexible substrate 5 can be hidden by overlapping the film 10 and the flexible substrate 5. In addition, since the film 10 is as thin as 0.05 mm to 0.1 mm, the LEDs 6 and 7 emit light outside the film 10 and there is no loss of light.

  By the way, as shown in FIGS. 1 to 4, a plurality of drop prevention hooks 12 project from the upper and lower inner surfaces of the housing 2, and the film 10 and the flexible substrate 5 are housed by the drop prevention hooks 12. Omission from 2 is reliably prevented.

  However, in order to provide the hook 12 in the housing 2, a slide mechanism is necessary for the mold, and when the housing 2 has a pin boss, the pin boss and the slide mechanism interfere with each other. Therefore, the place where the hook 12 is provided is limited. In this case, depending on the design, the film 10 is not sufficiently fixed only by the hook 12, and the problem that the film 10 floats occurs.

  Further, as shown in FIG. 5, a part of the inner lens 4 is provided with a standing wall 4 a that extends substantially horizontally toward the bottom surface of the housing 2, and the film 10 together with the flexible substrate 5 is formed by the standing wall 4 a and the housing 2. It is pinched. For this reason, the film 10 and the flexible substrate 5 are reliably prevented from falling off the housing 2.

  Further, a hook portion is provided on the standing wall 4a, and the inner lens 4 can be fixed so as not to move by hooking the hook portion on the housing 2. This reliably prevents the film 10 and the flexible substrate 5 from falling off the housing 2.

  Thus, in the door mirror turn lamp 1 according to the present invention, when current is supplied from the battery (not shown) to the side-facing LED 6 and the front-facing LED 7 via the flexible substrate 5, these LEDs 6 and 7 emit light intermittently. In the door mirror turn lamp 1 according to the present invention, since the front surface of the flexible substrate 5 is covered with a colored film 10 different from the flexible plate 5, it is transparent. Even when the inner lens 4 is used, the orange color of the flexible substrate 5, the circuit, the mounting components, and the like cannot be seen from the outside, and the appearance of the door mirror turn lamp 1 is not hindered by the flexible substrate 5. The color tone is not limited by the color of the flexible substrate 5. Further, in the case of a specification that does not use the inner lens 4, the lamp body can be designed thinner than in the case of the specification that uses it. Even when the inner lens 4 is not used, the flexible substrate 5 can be seen from the outside as it is, but if the flexible substrate 5 is covered with the film 10 as in the present invention, the orange color of the flexible substrate 5 can be seen. The problem of deteriorating appearance does not occur.

  By the way, in the above embodiment, although the form which applied this invention especially to the door mirror turn lamp was demonstrated, this invention is a high-mount lamp using a LED mounted on the flexible substrate as a light source, a rear fog lamp, Of course, the present invention can be similarly applied to other arbitrary vehicle LED lamps such as a rear combination lamp, a lid lamp, and a daytime running lamp.

1 Door mirror turn lamp (Vehicle LED lamp)
2 Housing 3 Outer lens 4 Inner lens 4a Standing wall of inner lens 5 Flexible substrate 6 Side-facing LED
7 Front LED
DESCRIPTION OF SYMBOLS 8 Fitting hole of flexible board 9 Fitting protrusion of housing 10 Film 10A Film base material 10B Print layer of film 11 Fitting hole of film 12 Hook for preventing dropping

Claims (4)

In a vehicle LED lamp, in which a flexible substrate on which at least an LED is mounted is accommodated in a space defined by a housing and an outer lens covering a front opening of the housing in a state of being fixed to the housing.
An LED lamp for a vehicle, wherein the front surface of the flexible substrate is covered with a colored film different from the flexible substrate.   2. The vehicle LED lamp according to claim 1, wherein the film is formed by printing a chromatic color on a transparent substrate.   The vehicle LED lamp according to claim 1, wherein a hook for preventing the film from falling off is formed in the housing.   An inner lens is disposed inside the outer lens in a space defined by the housing and the outer lens, and the film is sandwiched between the inner lens and the housing together with the flexible substrate. The LED lamp for vehicles in any one of Claims 1-3.

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