TWI675763B - Multi-section car turn signal device - Google Patents

Abstract

A multi-segment automobile turn signal device is suitable for being installed beside a front lamp and includes a lamp unit and a light emitting unit. The lamp unit includes a substrate defining a normal direction, a lens spaced in front of the substrate along the normal direction, and a light blocking group extending between the substrate and the lens. The inner edge of the cross section of the lens is arc-shaped and defines a reference point at the center of the circle. The light-blocking group has a plurality of light-blocking members connected radially between the substrate and the lens with the reference point as a circle center. The light blocking members, the substrate and the lens cooperate to define a plurality of light exit channels. The light-emitting unit includes a plurality of light-emitting elements arranged on the substrate and capable of emitting light into the light-emitting channels. The invention has the characteristics of multi-segment turning illumination and simplified design.

Description

Multi-segment automobile turn signal device

The present invention relates to a lighting device for vehicles, and more particularly to a multi-segment automobile turn signal device suitable for vehicles on three wheelchairs.

Referring to FIG. 1, a conventional turn signal is suitable for being disposed on an outer side of a front lamp 11 as a main illumination light source and an optical axis extending forward and backward, and includes a substantially curved reflector 12 and a A halogen bulb 13 provided in the reflecting mirror 12. Such a turn signal can provide additional lighting other than the front lamp 11 when the vehicle turns to improve turning safety, but has the disadvantages of being relatively large and only providing a single segment of lighting, which needs to be further improved.

An object of the present invention is to provide a multi-segment automobile turn signal device capable of overcoming at least one disadvantage of the prior art.

The multi-segment automobile turn signal device includes a lamp unit and a light emitting unit.

The lamp unit includes a substrate defining a normal direction, a lens spaced in front of the substrate along the normal direction, and a light blocking group extending between the substrate and the lens. The inner edge of the cross section of the lens is substantially arc-shaped and substantially defines a reference point located at the center of the circle. The light blocking group has a plurality of light blocking members connected between the substrate and the lens so as to extend radially with the reference point as a center. The light blocking members, the substrate and the lens cooperate to define a plurality of light exit channels. The light-emitting unit includes a plurality of light-emitting elements arranged on the substrate and capable of emitting light into the light-emitting channels.

The effect of the multi-segment automobile turn signal device is that the light-emitting elements are integrated on the substrate, and the light exit channels defined by the light-blocking elements can be used to project the light shape in sections to produce a multi-segment lighting effect. The design is more streamlined.

Referring to FIGS. 2, 3 and 4, an embodiment of a multi-segment automobile turn signal device according to the present invention is suitable for being installed beside a front lamp (not shown) of an automobile. The headlight can project light forward and define a forward-backward optical axis direction D1.

The multi-section automobile turn signal device includes a lamp unit 2 and a light emitting unit 3.

The lamp unit 2 includes a substantially U-shaped lamp holder 21, a substrate 22 disposed on the lamp holder 21 and defining a right-front-left-back normal direction D2, and an interval along the normal direction D2. A lens 23 in front of the substrate 22, a light-blocking group 24 substantially extending between the substrate 22 and the lens 23, and two pieces of cover provided on the substrate 22, the lens 23, and the upper and lower sides of the light-blocking group 24的 盖 26。 The cover plate 26.

The lamp base 21 has a base portion 211 extending perpendicularly to the normal direction D2, and two side seat portions 212 extending obliquely from the base portion 211 and extending away from each other.

An included angle A1 between the normal direction D2 and the optical axis direction D1 defined by the substrate 22 is 45 degrees. The substrate 22 is rectangular and is fixed on the base portion 211 of the lamp holder 21.

The lens 23 is disposed in front of the light blocking group 24, and the inner surface is a part of a cylindrical surface. Therefore, the inner edge 231 of the cross section of the lens 23 is substantially arc-shaped and convex forward along the normal direction D2. The arc length of the inner edge 231 of the lens 23 is substantially a quarter of the circumference, and substantially defines a reference point P1 located at the center of the circle.

The light-blocking group 24 includes a plurality of light-blocking members 241 extending substantially radially from the reference point P1 as a center and extending between the substrate 22 and the lens 23. Each light-blocking member 241 is a light-reflecting plate that can reflect light and has a substantially rectangular shape. The light blocking members 241, the substrate 22 and the lens 23 cooperate to define a plurality of substantially fan-shaped light exit channels 25. The center angle A2 of each light exit channel 25 is substantially the same as the center angle A2 of each of the other light exit channels 25 and is substantially 30 degrees.

The cover plates 26 cooperate with the lamp base 21 to define an installation space 27 that houses the substrate 22, the light-blocking group 24 and the light-emitting unit 3. Each cover plate 26 has a substantially fan-shaped base cover portion 261 and two extension cover portions 262 extending from the left and right opposite ends of the base cover portion 261 to the other cover plate 26, respectively. Each base cover portion 261 is formed with a plurality of assembling grooves 263 which can be used for assembling and inserting the light blocking members 241. Each extending cover portion 262 covers the front of the corresponding side seat portion 212 along the normal direction D2.

The light-emitting unit 3 includes a plurality of light-emitting elements 31 arranged on the substrate 22 at substantially horizontal intervals and capable of emitting light into the light-exit channels 25 respectively. Each of the light-emitting elements 31 is a rectangular LED chip with four sides extending horizontally or vertically, and the optical axis extends along the normal direction D2, that is, it can be projected forward along the normal direction D2. Light.

The light exit channels 25 can be further divided into a first light exit channel 251, a second light exit channel 252, and a third light exit channel 253 according to the drawing of FIG. 3 from left to right. The light-emitting elements 31 can be divided into a first light-emitting element 311 provided in the first channel, a second light-emitting element 312 provided in the second light-emitting channel 252, and a third light-emitting channel. The third light-emitting member 313 in 253.

Referring to FIG. 3 and FIGS. 5 to 7, the multi-segment automobile turn signal device can provide multi-segment lighting with different lighting ranges depending on the turning width of the car when the car turns.

When the turning angle of the car is small, the first light-emitting element 311 can project light forward along the normal direction D2, and the second light-emitting element 312 and the third light-emitting element 313 do not emit light. At this time, the multi-segment automobile turn signal device The light shape shown in FIG. 5 can be generated; and when the steering angle of the car is medium, the first light-emitting element 311 and the second light-emitting element 312 both project light along the normal direction D2, but the third light-emitting The piece 313 does not emit light. At this time, the multi-segment automobile turn signal device can produce a light shape as shown in FIG. 6; and when the turning angle of the automobile is large, the first light-emitting member 311, the second light-emitting member 312, and the The third light-emitting element 313 emits light together and generates a light shape as shown in FIG. 7.

The light blocking members 241 cooperate with the substrate 22 and the lens 23 to define the design of the first light emitting channel 251, the second light emitting channel 252, and the third light emitting channel 253, so that the first light emitting member 311, The light generated by the second light-emitting element 312 and the third light-emitting element 313 does not interfere with each other, so that the multi-stage lighting effect shown in FIGS. 5 to 7 can be produced. The design of the light-blocking members 241 using a reflector is better than the light-blocking design that uses a black board to absorb light, which can make the multi-section automobile turn signal device have better light-emitting efficiency.

The design that the center angles A2 of the first light exit channel 251, the second light exit channel 252, and the third light exit channel 253 are equal to each other and is substantially about 30 degrees can make the change in the shape of different light shapes obvious. Produce visual effects with a sense of fashion and technology.

The design in which the light-emitting elements 31 are arranged at horizontal intervals and the four sides of each light-emitting element 31 extend horizontally or vertically can generate light parallel to the road surface and more suitable for the road surface, which can further improve road safety. The light-emitting elements 31 are integrated on the substrate 22, and the design of the light-shielding elements 241 extending in the radial direction makes the multi-segment automobile turn signal device simpler in overall design.

In summary, the effect of the multi-segment automobile turn signal device of the present invention is that the light-emitting elements 31 are integrated on the substrate 22, and the light output channels 25 defined by the light-blocking elements 241 can be used to project light shape energy in sections. Produces the effect of multi-segment lighting, and has the characteristics of simpler overall design.

The above are only examples of the present invention, and the scope of patent application of the present invention cannot be limited by this, and equivalent changes made in accordance with the scope of patent application of the present invention and the contents of the description should also be the present invention. Covered by patent applications.

2‧‧‧lamp unit

21‧‧‧ lamp holder

211‧‧‧ base

212‧‧‧Side Seat

22‧‧‧ substrate

23‧‧‧ lens

231‧‧‧Inner edge

24‧‧‧ Light Block

241‧‧‧light blocking

25‧‧‧light output channel

251‧‧‧First light channel

252‧‧‧Second output channel

253‧‧‧third light exit channel

26‧‧‧ Cover

261‧‧‧base cover

262‧‧‧Extended cover

263‧‧‧Assembly tank

27‧‧‧ Setting space

3‧‧‧light-emitting unit

31‧‧‧Light-emitting parts

311‧‧‧The first luminous part

312‧‧‧Second luminous part

313‧‧‧ third light-emitting element

A1‧‧‧direction angle

A2‧‧‧ center angle

D1‧‧‧direction of optical axis

D2‧‧‧normal direction

P1‧‧‧ benchmark

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a combined sectional view illustrating an existing turn signal lamp; FIG. 2 is an exploded perspective view illustrating the multi-stage type of the present invention An embodiment of a car turn signal; FIG. 3 is a combined sectional view illustrating the embodiment; FIG. 4 is a front view showing a lens of this embodiment at a viewing angle; and FIG. 5 is a light diagram illustrating the embodiment A light shape generated when a first light emitting element projects light; FIG. 6 is a light shape diagram illustrating light shapes generated when the first light emitting element and a second light emitting element project light according to the embodiment; and FIG. 7 It is a light shape diagram illustrating light shapes generated when the first light emitting element, the second light emitting element, and a third light emitting element of the embodiment project light.

Claims (8)

A multi-segment turn signal device includes: a lamp unit including a substrate defining a normal direction, a lens spaced in front of the substrate along the normal direction, and a lens extending between the substrate and the lens Light blocking group, the inner edge of the cross section of the lens is substantially arc-shaped and substantially defines a reference point located at the center of the circle, and the light blocking group has several radial extensions substantially on the substrate with the reference point as the center of the circle. Cooperating with the light blocking member between the lens, the light blocking member, the substrate and the lens to define a plurality of light exit channels; and a light emitting unit including a plurality of light emitting units disposed on the substrate and capable of transmitting light into the The light-emitting elements of the light-exiting channels; wherein the light-exiting channels are substantially fan-shaped, and the lens is arranged in front of the light-exiting channels. The multi-section turn signal device according to claim 1, wherein the light exit channels are substantially fan-shaped, and the lamp unit further includes two pieces of substantially fan-shaped and cover the upper and lower sides of the substrate, the lens and the light blocking group. Covers on both sides. The multi-section turn signal device according to claim 1, wherein the light exit channels are substantially fan-shaped, and the center angle of each light exit channel is substantially the same as the center angle of each of the other light exit channels. The multi-section turn signal device according to claim 3, wherein the center angle of each light exit channel is substantially 30 degrees. The multi-segment turn signal device according to claim 1, wherein each of the light-emitting elements has a quadrangular shape with four sides extending in a horizontal direction or a vertical direction. The multi-section turn signal device according to claim 5, wherein each of the light-emitting elements is an LED chip. The multi-section turn signal device according to claim 5, wherein an optical axis of each of the light-emitting elements extends in the normal direction. The multi-segment turn signal device according to any one of claims 1 to 7, wherein the light blocking members are reflectors capable of reflecting light.