JP2014107123A - Vehicle head lamp and vehicle having vehicle head lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle head lamp which can make compatible the design performance of a vehicle front and optical needs, and a vehicle having the vehicle head lamp.SOLUTION: First and second LED light sources are arranged in parallel in the vehicle width direction so that the irradiation directions of light to a corresponding first reflector 47 for a low beam and light to a corresponding second reflector 48 for a high beam are directed substantially downward from the vehicle, and the first and second reflectors 47, 48 are arranged so as to reflect the light emitted from the first and second light sources 42, 43 to the vehicle front, and second inner lenses 53 extending toward the vehicle width direction over a region of the vehicle width direction in which the first and second reflectors 47, 48 are arranged are arranged in upper regions at sides opposite to the irradiation directions of the first and second LED light sources 42, 43 in the vehicle vertical direction with respect to the first and second light sources 42, 43.

Description

  The present invention relates to a vehicle headlamp including an LED light source in a lamp housing, and a vehicle including the vehicle headlamp.

  Conventionally, vehicle headlamps (so-called LED headlamps) using LEDs (light emitting diodes) as light sources are known. Thus, when the light source is an LED, there is an advantage that power consumption can be suppressed as compared with a halogen headlamp using a conventional halogen lamp as a light source.

  In the case of a halogen lamp, since it has a filament, light is emitted in all directions around it, whereas in the case of an LED, the irradiation range is narrow. For this reason, the LED has a high irradiation directivity, and as a result, there is an advantage that the reflector can be made compact. For this reason, in particular, in the case where a plurality of reflectors (for example, a high beam reflector and a low beam reflector) are provided in the lamp housing, the degree of freedom in arrangement increases and the degree of freedom in design can be improved. Is obtained.

  In the following Patent Document 1, as described above, a plurality of light sources including a high beam and a low beam, and reflectors corresponding to the light source, including a high beam and a low beam, are incorporated in the lamp housing by taking advantage of the LED headlamp using LEDs as a light source. An arrangement is disclosed.

JP 2012-61992 A

  On the other hand, depending on the vehicle, from the viewpoint of design, for example, the vehicle headlamp itself or a part thereof is formed as a character line extending in the vehicle width direction so as to be continuous with the design elements on the front of the vehicle such as a grill. There is a need to adopt a design that gives a sense of unity in combination with design elements such as a grill arranged at the front of the vehicle.

  However, the configuration that gives a sense of unity between the vehicle headlamp and the vehicle front member (design element) requires a design that takes into account coordination with the vehicle front member and the like from the beginning. If the shape of the vehicle headlamp is designed with priority given to the design of the vehicle, the optical needs for the vehicle headlamp, specifically, the securing of the brightness and the irradiation range may be restricted. there were.

  An object of this invention is to provide the vehicle headlamp which can make the design property of a vehicle front part, and optical needs compatible, and a vehicle provided with the vehicle headlamp.

  The vehicle headlamp according to the present invention includes a low-beam first LED light source and a high-beam second LED light source in a lamp housing, and the corresponding low-beam first reflector and high-beam second reflector. The first and second LED light sources are arranged side by side in the vehicle width direction so that the light irradiation direction is substantially the vehicle vertical direction, and the first and second LED light sources are irradiated from the first and second LED light sources. The first and second LED light sources are arranged in a region opposite to the irradiation direction of the first and second LED light sources in the vehicle vertical direction with respect to the first and second LED light sources. A light-guiding light emitting member extending in the vehicle width direction is disposed over a region in the vehicle width direction where the second reflector is disposed.

  According to this configuration, the low-beam and high-beam light sources are the first and second LED light sources with high irradiation directivity, so that the optical needs can be satisfied and the corresponding first and second reflectors can be arranged freely. The degree can be increased.

  Then, the first and second LED light sources are used with respect to the first and second LED light sources by using the high radiation directivity of the first and second LED light sources, that is, the high degree of freedom of arrangement of the first and second reflectors. A light guide light emitting member is disposed in a region opposite to the irradiation direction of the second LED light source in the vehicle vertical direction so as to extend in the vehicle width direction over a region in the vehicle width direction in which the first and second reflectors are disposed. Thus, the vehicle headlamp can have a new design element extending in the vehicle width direction.

  Thus, for example, if the light guide light emitting member is formed and arranged so as to be continuous with the design element of the vehicle front portion extending in the vehicle width direction, the light guide light emitting member has a sense of unity with the design element of the vehicle front portion. Thus, the design of the vehicle front part including the vehicle headlamp can be improved while satisfying the optical needs.

  In one embodiment of the present invention, the light guide light emitting member is non-transparent, and the light guide light emitting member is disposed in front of the second LED light source.

  According to this configuration, when the vehicle is viewed from the front, the second LED light source can be prevented from being seen by the light guide light emitting member. That is, the second LED light source can be concealed using the light guide light emitting member, thereby ensuring the appearance of the vehicle headlamp.

  A vehicle including the vehicle headlamp according to the present invention has the vehicle headlamp disposed on both sides of the vehicle front portion in the vehicle width direction and between the vehicle headlamps on both sides in the vehicle width direction. A design element extending in the vehicle width direction is disposed, and the light guide light emitting member and the design element are arranged on a substantially straight line in the vehicle width direction.

  According to this configuration, since the design element extending in the vehicle width direction and the light guide light emitting member are designed to be continuous, the light guide light emitting member can have a sense of unity together with the design element. Thereby, the design property of the vehicle front part can be improved while satisfying the optical needs.

  According to the present invention, the design of the front part of the vehicle and the optical needs can be made compatible.

The front view which shows the vehicle provided with the vehicle headlamp which concerns on embodiment of this invention. The perspective view which shows the vehicle headlamp of FIG. The disassembled perspective view which shows the vehicle headlamp of FIG. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. FIG. 3 is a sectional view taken along line B-B in FIG. 2. The CC sectional view taken on the line of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view showing a vehicle including a vehicle headlamp according to an embodiment of the present invention. 2 is a perspective view showing the vehicle headlamp of FIG. 1, FIG. 3 is an exploded perspective view thereof, and FIGS. 4 to 6 are sectional views taken along line AA in FIG. It is a BB line arrow sectional view and CC line arrow sectional drawing. In the figure, an arrow F indicates the front of the vehicle, and an arrow OUT indicates the outside in the vehicle width direction. In this specification, the direction of each member will be described with reference to the direction of the vehicle.

  A bumper face 2 is disposed at the front portion of the vehicle 1 shown in FIG. 1 as an outer plate covering the front of the vehicle with a bumper (not shown) extending in the vehicle width direction, and an engine or motor is disposed on the upper portion thereof. A bonnet 3 is disposed to cover a housing space containing a power train made of the like from above.

  Further, vehicle headlamps 4, 4, which will be described later, are disposed at both ends of the vehicle 1 in the vehicle width direction, and extend between the vehicle headlamps 4, 4 in the vehicle width direction. A front grill 5 is provided as a design element.

  The front grill 5 has a plate-like horizontal plate portion 5a extending mainly in the vehicle width direction, and a front grill central portion 5b widened in the vertical direction in order to attach the emblem 6. A gap 7 is formed between the upper side of the horizontal plate portion 5a and the bonnet 3 and between the lower side and the bumper face 2 so as to communicate the outside and the inside of the housing space.

  Further, in the present embodiment, the front end 3a of the bonnet 3 positioned between the vehicle headlamp 4 and the front grill 5 constitutes a design element that extends in the vehicle width direction together with the front grill 5, and the front grill 5 and the line of the front end part 3a of the bonnet 3 are arranged so as to be continued substantially on a straight line along the virtual line L in the vehicle width direction indicated by a two-dot chain line in FIG. Yes.

Next, the configuration of the vehicle headlamp 4 will be described in detail with further reference to FIGS. Since the vehicle headlamps 4 and 4 disposed on both sides in the vehicle width direction are symmetrical, only one of them (the vehicle right side) is shown in FIGS.
The vehicle headlamp 4 includes a resin lamp housing 40. As shown in FIGS. 2 and 3, the lamp housing 40 has a plurality of attachment portions 40 a to 40 c that are integrally formed so as to protrude from the outer surface. The attachment portions 40 a to 40 c are attached to the vehicle body. Installed.

  In the lamp housing 40, as shown in FIGS. 2 to 6, a light source driving unit 41, first and second LED light sources 42 and 43, a turn signal halogen lamp light source 44, first and first Two heat sinks 45 and 46, first to third reflectors 47 to 49, first and second extension bezels 50 and 51, and first and second inner lenses 52 and 53 are accommodated.

  Although omitted for convenience in FIGS. 1 and 2, an outer lens 54 as shown in FIG. 3 is attached to the front portion of the lamp housing 40, and the inside of the housing space surrounded by the lamp housing 40 and the outer lens 54. Each member 41-53 mentioned above is accommodated.

  The light source drive unit 41 is attached to the lamp housing 40 and is electrically connected to the first and second LED light sources 42 and 43 and the halogen lamp light source 44 through a harness so as to drive and drive the light.

  The first and second LED light sources 42 and 43 and the halogen lamp light source 44 are juxtaposed in the vehicle width direction in the lamp housing 40, and the first LED light source 42, the second LED light source 43, and the halogen lamp light source 44 are arranged from the outside in the vehicle width direction. Arranged in order.

  Among these, the first and second LED light sources 42 and 43 are light sources for low beam and high beam, respectively, and the illumination mode is switched by appropriately switching the lighting state of the first and second LED light sources 42 and 43 by the light source driving unit 41. Can be switched between a low beam state and a high beam state.

  The first and second heat sinks 45 and 46 are disposed corresponding to the first and second LED light sources 42 and 43, respectively, and release the heat generated from the first and second LED light sources 42 and 43 to the surroundings. It functions as a heat dissipation part. For this reason, the first and second heat sinks 45 and 46 have a plurality of heat radiation fins 45a and 46a in order to secure the surface area thereof.

  The first to third reflectors 47 to 49 are juxtaposed in the vehicle width direction corresponding to the first and second LED light sources 42 and 43 and the halogen lamp light source 44, respectively, and all irradiate from the corresponding light sources 42 to 44. It arrange | positions so that the emitted light may be reflected in the vehicle front.

  In this embodiment, the 1st and 2nd LED light sources 42 and 43 are arrange | positioned so that the light may be irradiated below as shown by the thick arrow in FIG. 4, FIG. The first and second reflectors 47 and 48 are both formed in a substantially arc shape in cross section, and correspond to the irradiation direction of the first and second LED light sources 42 and 43, and the first and second LED light sources 42, 43 is disposed below. As a result, the light emitted from the first and second LED light sources 42 and 43 radiates toward the front of the vehicle due to reflection by the first and second reflectors 47 and 48, as indicated by arrows in FIGS. It comes to be irradiated.

  As described above, in the present embodiment, the first and second LED light sources 42 and 43 having a narrow irradiation range and high irradiation directivity compared to the halogen lamp light source 44 and the like are used as the low beam and high beam light sources. It is unnecessary to dispose the corresponding first and second reflectors 47 and 48 so as to cover the first and second LED light sources 42 and 43 over a wide range. For this reason, the arrangement | positioning freedom degree of the 1st and 2nd reflectors 47 and 48 increases, and it arrange | positions the 1st and 2nd reflectors 47 and 48 only below the 1st and 2nd LED light sources 42 and 43 as mentioned above. Is possible. As a result, as shown in FIGS. 4 to 6, with respect to the first and second LED light sources 42 and 43, the light irradiation direction (here, downward) of the first and second LED light sources 42 and 43 is defined. A large space on the opposite side (here, the upper side) in the vehicle vertical direction can be secured.

  On the other hand, the 3rd reflector 49 has comprised the box shape by which the vehicle front side was open | released, and has the penetration hole 49a in the center part of the bottom face (rear face). The third reflector 49 is attached in a state in which the halogen lamp light source 44 is inserted into the insertion hole 49a, and the halogen lamp light source 44 is covered in a wide range by the box-shaped third reflector 49.

  The first extension bezel 50 is made of resin and has a bezel body 50a formed in a frame shape corresponding to the shape of the lamp housing 40, a first frame 50b formed on the outer side in the vehicle width direction, A second frame portion 50c formed at the lower portion on the inner side in the width direction and an upper piece portion 50d that protrudes downward from the upper portion of the bezel main body portion 50a above the second frame portion 50c are integrally formed.

  Here, after the light emitted from the second LED light source 43 is reflected by the second reflector 48, as indicated by an arrow in FIG. 6, from the region surrounded by the bezel main body 50a and the second frame 50c. High beam light is emitted in front of the vehicle. In addition, the light emitted from the halogen lamp light source 44 is reflected by the third reflector 49, and then, similarly, from the area surrounded by the bezel main body 50a and the second frame 50c as turn signal light in front of the vehicle Is irradiated.

  In the first extension bezel 50, the first inner lens 52 is fitted into a region surrounded by the bezel main body 50a and the first frame 50b, the bezel main body 50a, the first and second frame 50b, The second extension bezel 51 is fitted into a region surrounded by 50c and the upper piece 50d. Here, the first inner lens 52 is an inner lens for a position lamp for recognizing the presence of the own vehicle from the oncoming vehicle.

  Similar to the first extension bezel 50, the second extension bezel 51 is made of resin, and has a bezel body 51a in which a substantially circular light irradiation hole 51b is formed, and an inner side in the vehicle width direction from the top of the bezel body 51a. A band-shaped frame portion 51c extending in a band shape is integrally formed.

  Further, the belt-like frame portion 51c is formed with a lens fitting portion 51d extending in a slit shape along the longitudinal direction, and the belt-like second inner lens 53 is fitted into the lens fitting portion 51d.

  In a state in which the second extension bezel 51 is fitted into the first extension bezel 50, the bezel body 51a is surrounded by the bezel body 50a, the first and second frame portions 50b and 50c, and the upper piece 50d. 2 and 4, as shown in FIG. 2 and FIG. 4, it is disposed at a position corresponding to the first LED light source 42 and the first reflector 47 in the vehicle width direction.

  Here, after the light emitted from the first LED light source 42 is reflected by the first reflector 47, as shown by the arrows in FIGS. 4 and 5, a low beam is emitted from the light irradiation hole 51b formed in the bezel main body 51a. Light is emitted in front of the vehicle.

  On the other hand, the belt-like frame portion 51c is fitted in a belt-like region between the second frame portion 50c and the upper piece portion 50d, and as shown in FIGS. 5 and 6, the second frame portion 50c and the upper piece portion 50d. A substantially continuous design surface is formed by the belt-like frame portion 51 c and the second inner lens 53.

  In the present embodiment, the irradiation direction of the first and second LED light sources 42 and 43 with respect to the first and second LED light sources 42 and 43 is caused by the second inner lens 53 by the fitting of the belt-like frame portion 51c. It is disposed in an upper region on the opposite side in the vehicle vertical direction, and is disposed so as to extend in the vehicle width direction over the region in the vehicle width direction in which the first and second reflectors 47 and 48 are disposed.

  In the vehicle 1, as shown in FIG. 1, the lines of the second inner lenses 53, 53 of the vehicle headlamps 4, 4 on both sides in the vehicle width direction, the front end portion 3 a of the bonnet 3, and the side of the front grill 5. The line of the board part 5a is arrange | positioned so that it may follow on the substantially straight line along the virtual line L. FIG.

  Further, the second inner lens 53 is made of a transparent material, and the rear surface 53a (see FIGS. 5 and 6) is subjected to sawtooth cutting. Then, when the rear surface 53a receives the reflected light of the first reflector 47 as indicated by an arrow in FIG. 5, the light travels along the second inner lens 53 by the refraction action of the sawtooth slope. Light is guided inward in the width direction, and the entire second inner lens 53 emits light. In the present specification, the term “light emission” refers not only to the case where the light source emits light energy by itself, but also from other sources without emitting light energy by itself, as in the case of the second inner lens 53. It also includes the case where light is emitted by receiving irradiation.

  Further, the second inner lens 53 is a non-transparent member by applying the cutting process to the rear surface 53a, and the second LED light source 43 is in front of the vehicle as shown in FIG. It is arranged. For this reason, when the vehicle 1 is viewed from the front, the second LED light source 43 cannot be seen by the non-transparent second inner lens 53.

  In the present embodiment, the first and second reflectors 47 corresponding to the first and second reflectors 47 satisfying optical needs by using the first and second LED light sources 42 and 43 having high radiation directivity as the light sources for the low beam and the high beam. , 48 can be increased in the degree of freedom of arrangement.

  Then, the first and second LED light sources 42 and 43 are used by utilizing the high radiation directivity of the first and second LED light sources 42 and 43, that is, the high degree of freedom of arrangement of the first and second reflectors 47 and 48. , 43 in the vehicle width direction in which the first and second reflectors 47, 48 are disposed in an upper region opposite to the irradiation direction of the first and second LED light sources 42, 43 in the vehicle vertical direction. By disposing the second inner lens 53 so as to extend in the vehicle width direction over the region, the vehicle headlamp 4 can have a new design element extending in the vehicle width direction.

  As a result, as shown in FIG. 1, the second inner lens 53 is formed so as to be continuous with the design elements (the front end portion 3a of the bonnet 3 and the horizontal plate portion 5a of the front grill 5) extending in the vehicle width direction. If arranged, the second inner lens 53 can have a sense of unity together with the design elements of the vehicle front part, and the vehicle headlamps 4 and 4 are included while satisfying optical needs. The design of the front part of the vehicle can be improved.

  Further, since the non-transparent second inner lens 53 is disposed in front of the second LED light source 43 in the vehicle, as described above, the second inner lens 53 causes the second LED light source 43 when the vehicle 1 is viewed from the front. Can be made invisible. That is, the second LED light source 43 can be hidden using the second inner lens 53, and thereby the appearance of the vehicle headlamp 4 can be ensured.

  In the above-described embodiment, the irradiation direction of the first and second LED light sources 42 and 43 is downward, but the present invention is not necessarily limited to this and may be upward. In this case, the first and second reflectors are disposed above the first and second LED light sources, while the second inner lens is a lower region opposite to the irradiation direction of the first and second LED light sources. It will be arranged.

  Further, the design element extending in the vehicle width direction between the vehicle headlamps 4 and 4 is constituted by the front end portion 3a of the bonnet 3 and the horizontal plate portion 5a of the front grille 5, but is not necessarily limited thereto. It is not something. For example, you may comprise the said design element only by the front-end part of a bonnet, or only the horizontal plate part of a front grill. Further, the design element may be configured by a character line or emblem formed on the surface of the bumper face or the bonnet, or a combination thereof.

In correspondence between the configuration of the present invention and the above-described embodiment,
The light guide light emitting member of the present invention corresponds to the second inner lens 53,
Similarly,
The design elements correspond to the front end portion 3a of the bonnet 3 and the horizontal plate portion 5a of the front grill 5,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

DESCRIPTION OF SYMBOLS 1 ... Vehicle 3 ... Bonnet 3a ... Front end part 4 ... Vehicle headlamp 5 ... Front grille 5a ... Horizontal plate part 40 ... Lamp housing 42 ... 1st LED light source 43 ... 2nd LED light source 47 ... 1st reflector 48 ... 2nd reflector 53. Second inner lens

Claims (3)

In the lamp housing, a first LED light source for low beam and a second LED light source for high beam are provided,
The first and second LED light sources are juxtaposed in the vehicle width direction so that the irradiation direction of light to the corresponding low beam first reflector and high beam second reflector is substantially the vehicle vertical direction,
The first and second reflectors are arranged so as to reflect the light emitted from the first and second LED light sources to the front of the vehicle,
With respect to the first and second LED light sources, in a region opposite to the irradiation direction of the first and second LED light sources in the vehicle vertical direction, to a region in the vehicle width direction in which the first and second reflectors are disposed. A vehicle headlamp provided with a light guide light emitting member extending in the vehicle width direction. The light guide light emitting member is non-transparent,
The vehicle headlamp according to claim 1, wherein the light guide light emitting member is disposed in front of the second LED light source. The vehicle headlamp according to claim 1 or 2 is disposed on both sides in the vehicle width direction of the front portion of the vehicle,
A design element extending in the vehicle width direction is disposed between the vehicle headlamps on both sides in the vehicle width direction,
A vehicle provided with a vehicle headlamp in which the light guide light emitting member and the design element are arranged in a substantially straight line in the vehicle width direction.

Images