JP3210713U - Automotive tail lamp - Google Patents

Abstract

The present invention provides a tail lamp for an automobile capable of partitioning and separating light from a second light emitter and a first light emitter and combining various light emission formats without causing interference and light mixing. An automotive tail lamp including a hollow lamp housing and a first light emitting device mounted in the lamp housing, wherein the first light emitting device 3 reflects the light guide base portion 33, the first light emitting unit 32 and the light. The base part 34 and the translucent plate 37 are included. The first light emitting unit includes a plurality of first light emitters 323 that project light onto the light guide base portion, and a second light emitter 324 having a light color different from that of the first light emitter. The reflection base portion includes a reflection portion 341 and a separation portion 342 that is hollow and surrounds the periphery of the second light emitter. The translucent plate includes a light guide portion 371 corresponding to the reflection portion of the reflection base portion, and a light adjustment portion 372 corresponding to the isolation portion. The light from the two light emitters is separated and separated by the separation part of the reflection base part and the light control part of the translucent plate. [Selection] Figure 6

Description

        The present invention relates to an automotive lamp, and more particularly, to an automotive tail lamp having several types of usage functions.

        Referring to FIGS. 1, 2, and 3, a conventional automobile tail lamp 1 is suitable for being provided at the rear of the automobile, and includes a hollow lamp housing 11 and a 2 mounted in the lamp housing 11. The upper and lower corresponding traveling braking light emitting devices 12 and the backward light emitting device 13 positioned below the traveling braking light emitting devices 12 are included.

        Each traveling braking light emitting device 12 includes a hollow base 121, a circuit board 122 attached in the base 121, a plurality of light emitters 123 arranged in an annular shape on the circuit board 122, and the base A light guide base portion 124 mounted inside the light emitter 123 and positioned behind the light emitters 123; a reflector 125 mounted in the light guide base portion 124; and hollow and within the light guide base portion 124. A frame receiving portion 126 fitted therein, and a translucent plate 127 mounted in the frame receiving portion 126 and positioned behind the reflecting plate 125 with a space therebetween. Each light emitter 123 is an LED that can generate red light having two different light intensities. A relatively weak red light is a driving lamp light emission format and a relatively strong red light is a brake lamp light emission format. The light emission format can be controlled. The translucent plate 127 is made of a semi-reflective plate, and can transmit part of light and reflect part of the light to the reflector 125.

        In use, when the automobile tail lamp 1 is in a running state, the light emitters 123 emit relatively weak red light, and the red light enters the light guide base portion 124 and is projected to the frame receiving portion 126. And then a part of the light is directly emitted from the light transmissive plate 127, and another part of the light is reflected by the light transmissive plate 127 to the reflector 125, and Reflecting the reflection plate 125 to the translucent plate 127 causes a change in light gradation. When the automobile tail lamp 1 is switched to the brake state through circuit control, the light emitters 123 emit relatively strong red light, and the red light similarly causes the light guide base portion 124 and the frame receiving portion 126 to pass. The light is transmitted and projected toward the light transmitting plate 127.

        The traveling brake light emitting device 12 of the automotive tail lamp 1 can have a combined function of a traveling lamp and a brake lamp. However, the automotive tail lamp 1 has a function of a back lamp. It is necessary to separately provide the backward light emitting device 13, which not only causes a problem of occupying the space and enlarging the volume, but also affects the arrangement of the internal space of the lamp housing 11. But there was a need for improvement.

        Accordingly, an object of the present invention is to provide an automobile tail lamp capable of integrating light emitting functions such as running, braking, and reverse.

        Therefore, the automotive tail lamp according to the present invention includes a lamp housing and a first light emitting device. The lamp housing includes a housing base and a lamp lens that is coupled to the rear side of the housing base and defines a receiving space together with the housing base. The first light emitting device is mounted in the housing space of the lamp housing, and includes a light guide base portion, a first light emitting unit, a reflective base portion, and a translucent plate. The first light emitting unit includes a plurality of first light emitters that project light onto the light guide base portion, and a second light emitter that has a light color different from those of the first light emitters. The reflection base portion includes a reflection portion that is attached to the light guide base portion and reflects the projected light rearward, and a separation portion that is hollow and surrounds corresponding to the periphery of the second light emitters. The translucent plate is attached to the light guide base portion and is located behind the reflection base portion, and corresponds to the reflection portion of the reflection base portion, and the isolation portion of the reflection base portion The light guide unit projects a part of the light projected from the light guide base unit and the reflection unit to the lamp lens backward and another part of the light. The light is guided to be projected forward to the reflecting portion, and the light control portion is guided to project the light of the second light emitter to the lamp lens backward.

Other features and effects of the present invention will be clearly described in the embodiments based on the drawings.
It is a partial three-dimensional exploded view of a conventional automobile tail lamp. FIG. 2 is an incomplete three-dimensional exploded view of the automobile tail lamp of FIG. 1. FIG. 2 is an incomplete sectional view of the automobile tail lamp of FIG. 1. 1 is a partial three-dimensional exploded view of an embodiment of an automotive tail lamp according to the present invention. It is sectional drawing of this Example. The structure of the first light emitting device will be described with an incomplete three-dimensional exploded view of the embodiment. The structure of the first light emitting device will be described with reference to an incomplete sectional view of the embodiment. The structure of the second light emitting device will be described with an incomplete three-dimensional exploded view of the embodiment. The structure of the second light emitting device will be described with reference to an incomplete sectional view of the embodiment.

        Referring to FIGS. 4 and 5, there is shown an embodiment of an automobile tail lamp according to the present invention, which is suitable for being provided at the rear of the automobile. The automobile tail lamp includes the lamp housing 2, the first light emitting device 3, the first light emitting device 3, and the like. 2 light emitting devices 4. In the present embodiment, the first light emitting device 3 is a composite lamp having a traveling lamp, a brake lamp, and a back lamp function, and the second light emitting device 4 is a lamp having a blinker function. Of course, the light emission mode or function can be changed by design, but the present invention is not limited to this.

        The lamp housing 2 includes a housing base 21, a lamp lens 22 that is coupled to the rear side of the housing base 21 and defines the housing space 24 together with the housing base 21, and a frame attached to the housing space 24. 23. The frame 23 includes a first mounting hole 231 and a second mounting hole 232 penetrating in the front-rear direction. The first mounting hole 231 is used for mounting the first light emitting device 3, and the second mounting hole 232 is formed. Used to attach the second light emitting device 4. The first mounting hole 231 and the second mounting hole 232 of the present embodiment are provided with a space in the vertical direction, and naturally the position or direction at the time of implementation can also be changed. The present invention is not limited to this example.

        6 and 7, the first light emitting device 3 includes a base 31, a first light emitting unit 32, a light guide base portion 33, a reflection base portion 34, a plurality of connecting members 35, an inner frame 36, and a light transmission. A plate 37 is included.

        The base 31 is attached to the lamp housing 2 (FIG. 5) and includes an upright base wall 311 and a peripheral wall 312 that protrudes rearward from the periphery of the base wall 311. The base wall 311 and the peripheral wall 312 are combined to define a storage chamber 313.

        The first light emitting unit 32 is mounted in the storage chamber 313 of the base 31, is electrically connected to the power source of the automobile, is arranged on the left and right, and stands upright on the base wall 311 of the base 31. A plurality of first circuit boards 321 attached to each other, a second circuit board 322 located in the middle of the first circuit boards 321 and attached to the base wall 311 of the base 31, and a ring shape The first circuit board 321 and the plurality of first light emitters 323 provided around the edge of the second circuit board 322 so as to be present, and the second circuit is located at the center of the first light emitters 323. A plurality of second light emitters 324 provided on the substrate 322. Each light emitter 323 is an LED that can generate red light having two different light intensities. A relatively weak red light is a driving lamp light emission type, and a relatively strong red light is a brake lamp light emission type. The light emission format can be controlled, and each first light emitter 323 is an LED that can emit light of two different colors by design. Since this is a known technique, the description thereof is omitted here. The light colors of the second light emitters 324 are different from the light colors of the first light emitters 323, and each of the second light emitters 324 can emit white light. . The first circuit board 321 and the second circuit board 322 of this embodiment are provided corresponding to the curved polygonal base wall 311 of the base 31 so as to be attached. In practice, the first circuit board 321 and the second circuit board 322 can also be connected to each other, that is, the first light emitting unit 32 is provided with only one circuit board so that the first light emitters are provided. 323 and the second light emitters 324 can be provided.

        The light guide base portion 33 is mounted in the storage chamber 313 of the base 31, provided behind the first light emitting unit 32, and used for guiding light emitted by the first light emitting bodies 323. A light guide 331 having a hollow ring shape and two connection plates 332 that stand upright and are connected to the front side of the light guide 331. The light guide 331 is located on the front side and close to the first light emitter 323, and on the light entrance surface 333, on the rear side, and on the lamp lens 22 (FIG. 4) of the lamp housing 2. The concave / convex surface 334 that faces the outer peripheral edge of the light incident surface 333 and the outer peripheral edge of the concave / convex surface 334, and the outer peripheral surface 335 that engages with the peripheral wall 312 of the base 31, A first inner peripheral surface 336 extending backward from the inner peripheral edge, a second inner peripheral surface 337 extending forward from the inner peripheral edge of the uneven surface 334, the first inner peripheral surface 336, and the second inner peripheral surface 337 And a convex shoulder surface 339 that protrudes from the rear side toward the center near the light exit surface 338 of the first inner peripheral surface 336.

        The reflection base part 34 is mounted in the light guide 331 of the light guide base part 32, and stands upright and is provided correspondingly on the convex shoulder surface 339 of the light guide 331. And a hollow cylindrical isolation portion 342 provided at the center of the reflecting portion 341 and extending substantially in the front-rear direction, and a plurality of protruding portions 343 projecting forward from the reflecting portion 341. The reflection part 341 extends outward from the outer periphery of the isolation part 342 and can reflect the projected light backward. The isolation part 342 has a hollow encircling shape and is located behind the reflecting part 341, and is adjacent to each other and protrudes forward from the frame surrounding area 344 and corresponds to the periphery of the second light emitters 324, respectively. And a plurality of cup areas 345 surrounding it. The isolation part 342 forms an optical path space 346 through which the light emitted from the second light emitters 324 passes, and the light emitted from the second light emitters 324 and the first light emitters 323 are emitted. The light can be separated and separated, and interference and light mixing do not occur.

        The connecting members 35 are inserted through the connection plates 332 of the base 31, the first light emitting unit 32, and the light guide base portion 32, and are respectively screwed into the protruding portions 343 of the reflection base portion 34. The connecting member 35 is a screw, and the base 31, the first light emitting unit 32, the light guide base portion 32, and the reflection base portion 34 can be screwed together.

        The inner frame 36 has an annular frame shape, is attached to be engaged with the second inner peripheral surface 337 of the light guide 331, and has a reflection surface 361 located on the inner side.

        The translucent plate 37 is located behind the reflective base portion 34 and is erected on the rear edge portion of the reflective surface 361 of the inner frame 36. It is intended to reflect a part of the light to the reflection base 34. The translucent plate 37 corresponds to the light guide portion 371 corresponding to the reflection portion 341 of the reflection base portion 34 and the isolation portion 342 of the reflection base portion 34, and the rear side is in front of the frame surrounding area 344. And a light control unit 372 close to the edge. The light guide unit 371 extends outward from the outer periphery of the light control unit 372, and a part of light projected by the light guide base unit 32 and the reflection unit 341 is directed rearward to the lamp lens 22. (FIG. 5), and another part of the light is used to guide the light toward the front to be projected onto the reflecting portion 341. The light control unit 372 includes a low convex tooth area 373 and two high convex tooth areas 374 that are located on the left and right sides of the low convex tooth area 373 and protrude rearward from the low convex tooth area 373. Prepare. The dimmer 372 can guide the light of the second light emitters 324 to be projected rearward onto the lamp lens 22 (FIG. 5), and can also control the back lamp light shape, uniformity, and Suitable for viewing angle.

        In use, when the automobile tail lamp according to the present embodiment is in a traveling state, the first light emitters 323 stably emit relatively weak red light, and the red light is emitted from the light guide base portion 32. The light enters from the light incident surface 333 and exits from the concave / convex surface 334 to form one optical ring. Is reflected toward the direction of the translucent plate 37. Since the translucent plate 37 is a semi-reflective plate material, a part of the light is emitted from an edge portion of the translucent plate 37 near the light guide portion 371 and another part of the light is transmitted through the translucent plate 37. Then, the light is reflected to the reflection part 341 of the reflection base part 34, and is reflected by the reflection base part 34 to the light guide part 371 of the translucent plate 37. Since the brightness of the light projected up to the reflection base 34 is gradually reflected and diminished, the reflected light spot produces a supplementary light effect, and the gradation change gradually diminishes in brightness from the outside to the middle. It is possible not only to enhance the light variability and novelty, but also to enhance the visual variability, so that it is possible to call attention to people and vehicles behind. In the design, the present embodiment can emit light shape and brightness light shape and brightness suitable for a traveling lamp using brightness control.

        When the automotive tail lamp according to the present embodiment is switched to the brake state through circuit control, the first light emitters 323 emit relatively strong red light, and the red light is similarly transmitted to the light guide base portion 32 and Through the inner frame 36, the light is projected toward the light guide portion 371 of the light transmitting plate 37, and the light gradation change is caused by the reciprocal reflection and transmission between the light transmitting plate 37 and the reflection base portion 34. As a result, relatively good safety can be obtained.

        Further, when the automobile tail lamp according to the present embodiment is switched to the reverse state through the circuit control, white light is emitted to the second light emitters 324, and the white light is emitted from the isolation portion of the reflection base portion 34. It passes through the optical path space 346 of 342 and exits from the dimming part 372 of the light transmitting plate 37. In design, the present embodiment can emit a light shape and brightness suitable for a back lamp.

        In summary, the automotive tail lamp according to the present invention is designed so that the second circuit board 322 to which the first light emitters 323 that use the second light emitters 324 that emit white light together for red light emission are attached. The light emitted from the second light emitters 324 and the first light emitters through the isolation path design of the isolation part 342 of the reflection base part 34 and the light control part 372 of the light transmitting plate 37. The light emitted from the H.323 is divided and separated, and interference and light mixing do not occur. In this way, the first light emitting device 3 is also provided with a combined function such as a traveling lamp, a brake lamp, and a back lamp, so that there is sufficient space. This can solve the disadvantage of separately providing a conventional back lamp space by utilizing the circuit board, and is advantageous not only for the layout design of the interior space of the vehicle lamp, but also for the use of the circuit board at the same time. Assemble saving, because of its preferred integration can be reliably achieve the object of the present invention.

        Referring to FIGS. 8 and 9, the second light emitting device 4 includes a second light emitting unit 41, a reflector 42 positioned below the second light emitting unit 41, and a rear of the reflector 42. The inner lamp lens 43 is included. The second light emitting unit 41 is electrically connected to the power source of the automobile, and the third circuit board 411 mounted horizontally on the lamp housing 2 (FIG. 5) is spaced apart from the left and right by the third circuit board 411. And a plurality of third light emitters 412 attached to the three circuit board 411. The reflectors 42 are adjacent to each other on the left and right, and are respectively positioned below the third light emitters 412 and used to guide the light of the third light emitters 412 to be projected forward. 421. Each direction changing portion 421 includes a bottom wall 422 and an uneven reflecting wall 423 that is curved and extended upward in a circular arc shape from the front edge of the bottom wall 422 and has a wavy shape. The inner lamp lens 43 includes a plurality of lamp lens portions 431 that are hollow and cover the rear sides of the direction changing portions 421, and a connecting frame portion 432 that is connected to the lamp lens portions 431. . Each lamp lens portion 431 includes a surrounding wall 433 that surrounds as a hollow cylinder and communicates with the front and rear, and an uneven rear cover wall 434 that is connected to the rear side of the surrounding wall 433 and has a wavy shape.

        In use, when the automobile tail lamp according to the present embodiment is switched to the direction change state through circuit control, the third light emitters 412 emit flashing citrus light, and the flashing citrus light is reflected on the reflector 42. The direction change part 421 emits toward the lamp lens part 431 of the inner lamp lens 43, and the visual changeability of the blinking warning is also preferable. In design, the present embodiment can emit a light shape and luminance suitable for a blinker by using luminance control.

        What has been described above is merely an embodiment of the present invention, and the scope of the present invention is not limited to such an embodiment, but from the scope of claims of the utility model registration of the present invention and the contents of the specification. It goes without saying that various improvements and modifications can be made without departing from the scope of the claims for utility model registration of the present invention.

DESCRIPTION OF SYMBOLS 1 Lamp housing 21 Housing base 22 Lamp lens 23 Frame 231 1st mounting hole 232 2nd mounting hole 24 Housing space 3 1st light-emitting device 31 Base 311 Base wall 312 Perimeter wall 313 Housing chamber 32 1st light-emitting unit 321 1st circuit board 322 Second circuit board 323 First light emitter 324 Second light emitter 33 Light guide base portion 331 Light guide body 332 Connection plate 333 Light incident surface 334 Concavity and convexity 335 Outer peripheral surface 336 First inner peripheral surface 337 Second inner peripheral surface 338 Light exit surface 339 Convex shoulder surface 34 Reflection base portion 341 Reflection portion 342 Isolation portion 343 Protrusion portion 344 Frame enclosing area 345 Cup area 346 Optical path space 35 Connecting member 36 Inner frame 361 Reflection surface 37 Translucent plate 371 Light guide portion 372 Tone Light portion 373 Low convex tooth area 374 High convex tooth area 4 Second light emitting device 41 Second light emitting unit 411 3 circuit board 412 third emitter 42 reflector 421 deflecting portion 422 bottom wall 423 reflecting wall 43 inner lamp lens 431 lamp lens unit 432 connecting a frame portion 433 encircling 434 rear cover wall

Claims (10)

A lamp housing that includes a housing base and a lamp lens that is coupled to the rear side of the housing base and defines a housing space together with the housing base;
A first light emitting device mounted in the housing space of the lamp housing;
A tail lamp for an automobile including
The first light emitting device includes:
A light guide base,
A first light-emitting unit that includes a plurality of first light emitters that project light onto the light guide base portion, and a second light emitter that has a light color different from that of the first light emitter;
A reflection base portion that is attached to the light guide base portion and includes a reflection portion that reflects the projected light backward; and a separation portion that is hollow and surrounds the second light emitter so as to surround it.
A light guide portion attached to the light guide base portion and positioned behind the reflection base portion and corresponding to the reflection portion of the reflection base portion, and a light control portion corresponding to the isolation portion of the reflection base portion The light guide unit projects a part of the light projected from the light guide base unit and the reflection unit to the lamp lens backward and another part of the light forward. And a translucent plate that guides the light to be projected to the reflecting portion, and the light control portion guides the light from the second light-emitting body to be projected rearward to the lamp lens. tail lamp.     The isolation portion of the reflection base portion includes a frame surrounding area whose rear edge portion is close to the front periphery of the light control portion of the translucent plate, and is adjacent to each other and protrudes forward from the frame surrounding area, and the second light emitter The automobile tail lamp according to claim 1, further comprising a plurality of cup areas surrounding each correspondingly.     The dimming part of the translucent plate includes a low convex tooth area and two high convex tooth areas that are located on the left and right sides of the low convex tooth area and protrude rearward from the low convex tooth area. The automobile tail lamp according to claim 2.     The first light emitter of the first light emitting unit surrounds an outer periphery of the second light emitter, and the reflection portion of the reflection base portion extends outward from the outer periphery of the isolation portion, 4. The automobile tail lamp according to claim 3, wherein the light guide portion extends outward from the outer periphery of the light control portion.       The light guide base portion includes a light guide body having a hollow ring shape, the light guide body is located on the front side, the light incident surface facing the first light emitter, the rear side, and the lamp housing A concave-convex surface facing the lamp lens, a first inner peripheral surface extending rearward from the inner peripheral edge of the light incident surface, a second inner peripheral surface extending forward from the inner peripheral edge of the concave-convex surface, and the first A light exit surface connected to the inner peripheral surface and the second inner peripheral surface 337, and protrudes from the rear side toward the center near the light output surface of the first inner peripheral surface, and the reflection portion of the reflection base portion The automobile tail lamp according to claim 4, further comprising a convex shoulder surface 339 used for the installation.     The light guide base portion further includes two connection plates connected to the front side of the light guide, the first light-emitting device being hollow and attached to the lamp housing, and the light guide An inner frame attached to the second inner peripheral surface and used for laying the translucent plate, wherein the light guide base portion is attached to the base, and the reflection base portion is the reflection base A protruding portion that protrudes forward from the portion, and the first light emitting device passes through the connection plate of the base, the first light emitting unit, and the light guide base portion, and the protrusion of the reflective base portion. The automobile tail lamp according to claim 5, further comprising a plurality of connecting members screwed to the portion.     The first light emitting unit further includes a first circuit board that is arranged on the left and right and is mounted between the base and the light guide base part, and a second circuit board that is positioned in the middle of the first circuit board. The first light emitter is provided on the first circuit board and the second circuit board, and the second light emitter is provided on the second circuit board. Car tail lamps.     The light emitting device further includes a second light emitting device mounted in the housing space of the lamp housing, wherein the second light emitting device includes a second light emitting unit, a reflector located below the second light emitting unit, and the reflector. An inner lamp lens provided at the rear, wherein the second light emitting unit includes a plurality of third light emitters that project light onto the reflector, and the reflectors are adjacent to each other on the right and left sides, and each of the third light emitters. A plurality of lamp lens portions each including a direction changing portion for guiding the light of the body to project forward, the inner lamp lens being hollow and covering each of the rear sides of the direction changing portions; The automobile tail lamp according to claim 1, further comprising a connecting frame portion connected to the lamp lens portion.     The second light emitting unit further includes a third circuit board that is located above the reflector and used for mounting the third light emitter, and each direction changing portion of the reflector includes a bottom wall, the bottom And an uneven reflecting wall that is curved and extended upward in a circular arc shape from the front edge portion of the wall, and each lamp lens portion of the inner lamp lens is surrounded as a hollow cylindrical shape and communicates with the front and rear The automobile tail lamp according to claim 8, further comprising: an enclosure wall; and an uneven rear cover wall connected to the rear side of the enclosure wall and having a wavy shape.     The lamp housing further includes a frame mounted in the housing space, and includes a first mounting hole and a second mounting hole through which the frame penetrates in the front-rear direction, and the first mounting hole of the first light emitting device. The automobile tail lamp according to claim 9, wherein the tail lamp is used for attachment, and the second attachment hole is used for attachment of the second light emitting device.

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