TWI799303B - Vehicle lamp structure - Google Patents

Abstract

The invention provides a vehicle lamp structure, which includes a base, a circuit board, at least one first light-emitting element, a ring block, a first optical element and an optical cover. The circuit board is arranged above the base. The first light-emitting element is disposed on an upper surface of the circuit board. The ring block is arranged above the circuit board. The first optical element is disposed above the first light-emitting element. The optical cover is arranged above the first optical element. Wherein, the ring block surrounds the first light-emitting element, and there is a distance between the first optical element and the optical cover.

Description

Light structure

The invention relates to a car lamp structure, in particular to a car lamp structure with improved luminous efficiency.

Tail lights are the tail lights of the vehicle, including turn signals, brake lights, position lights, fog lights, reversing lights, and parking lights. They are usually used to inform the vehicles behind of the driving status, including turning or braking, to prevent accidents. As for the light source, the current trend of use is mostly LED lights.

LED lights refer to lights that use light-emitting diodes. The electrons and holes inside the diodes combine to emit light. Compared with halogen lights, they have the advantages of longer life, small size, high luminous efficiency, and low cost. LED lights are driven by direct current and are commonly used in household light bulbs, traffic signs, vehicle headlights, direction lights, tail lights and other lamps.

Refer to the new patent No. 248764 of the Republic of China Patent Announcement, which discloses an improved brake light structure. The structure of this brake light contacts the 3D round surface of the outer lens through the surrounding wall. However, if the outer lens is slightly misaligned, it is difficult for the 3D round surface to be in close contact with the surrounding wall. Therefore, this design is prone to light leakage.

For this reason, the present invention provides a car light structure to solve the problem of light leakage in the conventional technology, and further, it can improve the problem of chip shedding caused by vibration joints, increase luminous efficiency, improve the problem of insufficient light-emitting area, and prevent internal light-emitting Light interacts between areas.

One object of the present invention is to provide a plurality of light-emitting elements, which are respectively located in two areas inside the confined space and those not located in the enclosed space. The areas located in the enclosed space can increase the luminous efficiency of the light-emitting elements in the area, and the light emitting elements not located in the enclosed space The light of the component will be reflected by the slope of the optical component, which can improve the problem of insufficient light around the lamp.

The invention provides a car lamp structure, which comprises a base, a circuit board, at least one first light-emitting element, a plurality of second light-emitting elements, a ring stopper, a first optical element, a second optical element and an optical cover . The circuit board is arranged above the base. The first light-emitting element and the second light-emitting elements are arranged on an upper surface of the circuit board. The ring block is arranged above the circuit board. The first optical element and the second optical element are respectively arranged above the first light emitting element and the second light emitting elements. The optical cover is arranged above the first optical element and the second optical element. Wherein, the ring stopper surrounds the first light-emitting element, and there is a distance between the first optical element and the optical cover.

The present invention provides an embodiment, at least one first connection part is provided on the inner side of a convex part of the base, and at least one second connection part is provided on the outer side of the second optical element, and the first connection part is fixedly connected to the first connection part. Two connecting parts.

The present invention provides an embodiment, wherein at least one limiting portion is substantially arranged around the upper inner edge of the ring stopper, and the first optical element is disposed on the limiting portion.

The present invention provides an embodiment, wherein at least one inclined surface is substantially provided on the upper inner side of the second optical element, and part of the plurality of second light rays emitted by the second light-emitting elements passes through the inclined surface of the second optical element After reflection, the light is finally emitted through the periphery of the optical cover.

1: car light structure

1B: Light structure

10: base

101: convex part

1011: the first connecting part

11: Circuit board

111: The upper surface of the circuit board

121: the first light-emitting element

1211:First Ray

122: the second light-emitting element

1221: second light

13: Ring block

131: limit part

132: Substantially enclosed space

133: inner side

14: The first optical element

15: Second optical element

151: bevel

152: the second connecting part

16: Optical cover

163: Protruding structure

165: Inner surface of optical cover

A: Central axis

D1: Spacing

D2: Gap

Figure 1: It is an exploded perspective view of the first embodiment of the present invention; Figure 2: It is an assembled view of the first embodiment of the present invention; Figure 3: It is a cross-section of the first embodiment of the present invention Figure; Figure 4: it is a partial sectional enlarged view of the first embodiment of the present invention; Figure 5: it is a schematic diagram of the optical path of the first embodiment of the present invention; and Figure 6: it is the second embodiment of the present invention A partial cross-sectional enlarged view of the embodiment.

In order to enable your review committee members to have a further understanding and understanding of the characteristics and achieved effects of the present invention, a preferred embodiment and a detailed description are provided as follows: In the following, the present invention will be described by means of drawings. Various embodiments of the invention will be described in detail. Inventive concepts may, however, be embodied in many different forms and should not be construed as limited to the illustrative embodiments set forth herein.

First of all, please refer to FIG. 1 and FIG. 2, which are an exploded perspective view of the first embodiment of the present invention and an assembled view of the first embodiment of the present invention. In this embodiment, the car lamp structure 1 includes a base 10, a circuit board 11, at least one first light-emitting element 121, a plurality of second light-emitting elements 122, a ring stopper 13, a first optical element 14, a first Two optical elements 15 and an optical cover 16 . In this embodiment, a plurality of first light emitting elements 121 are used, and in other embodiments, one first light emitting element 121 may also be used, but not limited thereto. The first light emitting element 121 and the plurality of second light emitting elements 122 are disposed on an upper surface 111 of the circuit board 11 . The ring stopper 13 surrounds the first light emitting element 121 . In this embodiment, The ring stopper 13 continuously surrounds the first light-emitting element 121 , and in other embodiments, the ring stopper 13 discontinuously surrounds the first light-emitting element 121 , but not limited thereto. The second optical element 15 is adjacently disposed substantially around the periphery of the first optical element 14 .

Moreover, in this embodiment, the car lamp structure 1 has a central axis A, and in other embodiments, it may be an asymmetric structure, but not limited thereto. In this embodiment, the first light-emitting element 121 and the second light-emitting elements 122 are light-emitting diodes (LEDs), while in other embodiments, the first light-emitting element 121 and the second light-emitting elements The element 122 can be an organic light emitting diode (OLED), a laser diode (LD), a cold cathode fluorescent lamp (CCFL), a light bulb, etc., but is not limited thereto. In this embodiment, the first light emitting element 121 and the second light emitting elements 122 can use the same LED or different LEDs, but not limited thereto. In this embodiment, the first light-emitting element 121 and the plurality of second light-emitting elements 122 are disposed on the same circuit board 11 , and therefore, problems of complex manufacturing process and high cost caused by disposing on different circuit boards can be improved. In other embodiments, the first light emitting element 121 and the second light emitting elements 122 may also be disposed on different circuit boards (not shown).

Please refer to Fig. 3 and Fig. 4, Fig. 3 is a sectional view of the first embodiment of the present invention, and Fig. 4 is a partial sectional enlarged view of the first embodiment of the present invention. The base 10 is provided with a protruding portion 101 above it. Preferably, the protruding portion 101 is a casing, but not limited thereto. The circuit board 11 is disposed above the base 10 . The ring stopper 13 is arranged above the circuit board 11. In this embodiment, the ring stopper 13 is arranged on the upper surface 111 of the circuit board 11, and is arranged on the first light-emitting element 121 and the between the second light-emitting elements 122. According to this embodiment, at least one limiting portion 131 is substantially formed around the upper inner edge of the ring stopper 13 , and the first optical element 14 is disposed on the limiting portion 131 . The first optical element 14 and the second optical element 15 are disposed above the first light emitting element 121 and the plurality of second light emitting elements 122 respectively, and the second optical element 15 presses the first optical element 14 . The circuit board 11, the ring stopper 13 and A substantially enclosed space 132 is formed between the first optical element 14, wherein, in this embodiment, one inner surface 133 of the ring stopper 13 is a reflective surface to enhance the light output from the substantially enclosed space 132 Effect. The ring stopper 13 separates the light-emitting areas of the first light-emitting element 121 and the plurality of second light-emitting elements 122 of the circuit board 11 , so that light from the two light-emitting areas does not interfere with each other or reduces interference.

Moreover, the optical cover 16 is disposed above the first optical element 14 and the second optical element 15 , and the optical cover 16 is fixed on the base 10 . Wherein, there is a distance D1 between the optical cover 16 and the first optical element 14 . At least one first connection portion 1011 is provided on the inside of the convex portion 101 of the base 10, and at least one second connection portion 152 is provided on the outside of the second optical element 15, and the first connection portion 1011 is fixed to the second The connection part 152, wherein, in this embodiment, the first connection part 1011 is a slot, and the second connection part 152 is a block, but not limited thereto. In addition, according to the present embodiment, the number of the first connection part 1011 and the second connection part 152 are preferably four and fixed to each other, but it is not limited thereto. The fastening method described in the present invention can be clamped, screwed, riveted, glued, magnetically joined, hot pressed, in-mold injection molding, etc., but is not limited thereto. The substantive encirclement mentioned in the present invention is continuous encirclement, discontinuous encirclement or partial encirclement, but it is not limited thereto.

The optical cover 16 has at least one protruding structure 163 substantially surrounding the outer side of an inner surface 165 of the optical cover 16 relative to the second optical element 15 . The protruding structure 163 is conventionally used to separate different structures of the inner surface 165 and to separate different lighting effects (for example: to separate the light output of the first optical element 14 from the light output of the second optical element 15), and also It has an aesthetic effect, and the second optical element 15 can be pressed to fix the second optical element 15 . However, with this conventional design, when the optical cover 16 and the base 10 are engaged through vibration, the protruding structure 163 is likely to cause friction with the second optical element 15, and fine particles will fall into the lamp structure 1. inside, which in turn affects product quality and optical light extraction efficiency. Therefore, in this embodiment, the protruding structure 163 of the optical cover 16 and the second optical element 15 There is a gap D2 between them, so that the protruding structure 163 of the optical cover 16 will not cause friction with the second optical element 15 due to vibration, and generate fine debris. Therefore, it helps to improve product quality and avoid Affect the optical light extraction efficiency. It is supplemented that, since the second optical element 15 in this embodiment can be fixed on the base 10 through the mutual fixing of the first connecting part 1011 and the second connecting part 152, and therefore, the The protruding structure 163 does not need to press the second optical element 15 .

Continuing the above, please also refer to FIG. 5 , which is a schematic diagram of the optical path of the first embodiment of the present invention. The plurality of first light rays 1211 emitted by the first light-emitting element 121 enter the first optical element 14 and then exit through the optical cover 16. Due to the sealing effect of the substantially enclosed space 132, the first light rays 1211 The luminous efficiency is better when the light 1211 exits through the first optical element 14 and the optical cover 16 . At least one inclined surface 151 is substantially disposed on the upper inner side of the second optical element 15 . Part of the plurality of second light rays 1221 emitted by the second light-emitting elements 122 is reflected by the inclined surface 151 of the second optical element 15, and finally emits light through the periphery of the optical cover 16, thereby increasing the The surrounding light-emitting area of the car light structure 1 can avoid the problem of failing to pass the car light regulations due to insufficient light around the car light. Wherein, the inclined surface 151 can cause partial reflection and partial refraction (not shown) of the second light rays 1221 , and the ratio of partial reflection and partial refraction mainly depends on the material of the second optical element 15 and the installation angle.

In the car lamp structure 1 of the present invention in this embodiment, the ring stopper 13 is provided to prevent the first light rays 1211 of the first light-emitting element 121 from The two light rays 1221 interfere with each other, thereby helping to generate a clearer light shape. In addition, the ring stopper 13, the first optical element 14 and the circuit board 11 form the substantially enclosed space 132, so that the first light rays 1211 can increase the luminous efficiency through the effect of the enclosed space; in addition, the second optical The inclined surface 151 of the element 15 reflects some of the second light rays 1221 to increase the peripheral light-emitting area of the vehicle light structure 1; moreover, the protruding structure 163 of the optical cover 16 and the second optical element 15 are aligned No contact (with this gap D2), when entering During vibration bonding, the protruding structure 163 and the second optical element 15 will not generate friction to generate fine debris, and therefore, help to improve product quality and avoid affecting optical light extraction efficiency.

Please refer to Fig. 6, Fig. 6 is a partial sectional enlarged view of the second embodiment of the present invention. The car light structure 1B of this embodiment is the same or similar to the car light structure 1 of the first embodiment, and will not be described in detail here, and only the main differences of this embodiment will be described. In this embodiment, the first optical element 14 of the lamp structure 1B is fixed on the inner surface 165 of an optical cover 16, and the fixing method can be clamping, bonding, hot pressing, in-mold injection molding, etc., but not This is not the limit.

Therefore, the present invention is novel, progressive and can be used in the industry. It should meet the patent application requirements of my country's patent law. I file an invention patent application in accordance with the law. I pray that the bureau will grant the patent as soon as possible. I am sincerely praying.

However, the above-mentioned ones are only preferred embodiments of the present invention, and are not used to limit the scope of the present invention. For example, all equal changes and modifications are made according to the shape, structure, characteristics and spirit described in the scope of the patent application of the present invention. , should be included in the patent application scope of the present invention.

1: car light structure

10: base

11: Circuit board

111: The upper surface of the circuit board

121: the first light-emitting element

122: the second light-emitting element

13: Ring block

14: The first optical element

15: Second optical element

16: Optical cover

A: Central axis

Claims (11)

A car lamp structure, comprising: a base; a circuit board, which is arranged above the base; at least one first light-emitting element, which is arranged on an upper surface of the circuit board; a plurality of second light-emitting elements, which It is arranged on the upper surface of the circuit board; a ring stopper is arranged on the circuit board; a first optical element is arranged on the first light-emitting element; a second optical element is arranged on the top of the circuit board; It is arranged above the second light-emitting elements; and an optical cover is arranged above the first optical element and the second optical element, wherein the upper inner side of the second optical element is substantially surrounded by At least one inclined surface, part of the light emitted by the second light-emitting elements is reflected by the inclined surface of the second optical element, and finally emits light through the periphery of the optical cover. The vehicle lamp structure as claimed in claim 1, wherein a substantially closed space is formed between the first optical element, the ring stopper and the circuit board. The vehicle lamp structure according to claim 2, wherein at least one limiting portion is substantially formed around the upper inner edge of the ring stopper, and the first optical element is disposed on the limiting portion. The vehicle lamp structure as claimed in claim 1, wherein the ring stopper is disposed on the upper surface of the circuit board, and is disposed between the first light-emitting element and the second light-emitting elements. The car lamp structure according to claim 1, wherein, the base is provided with a convex portion above it, and at least one first connecting portion is provided on the inner side of the convex portion, and at least one first connecting portion is provided on the outer side of the second optical element. Two connecting parts, and the first connecting part is fixedly connected to the second connecting part. The lamp structure according to claim 5, wherein the first connection part is a slot, and the second connection part is a block. The vehicle light structure according to claim 1, wherein the second optical element is adjacently and substantially arranged around the periphery of the first optical element. The vehicle lamp structure according to claim 1, wherein the optical cover has at least one protruding structure substantially surrounding the outer side of an inner surface of the optical cover relative to the second optical element, the protruding structure and the There is a gap between the second optical elements. The vehicle light structure according to claim 1, wherein one inner side of the ring stopper is a reflective surface. The vehicle light structure according to claim 1, wherein the optical cover is fixedly connected to the base. A car lamp structure, comprising: a base; a circuit board, which is arranged above the base; at least one first light-emitting element, which is arranged on an upper surface of the circuit board; a plurality of second light-emitting elements, which It is arranged on the upper surface of the circuit board; a ring stopper is arranged on the circuit board; a first optical element is arranged on the first light-emitting element; a second optical element is arranged on the top of the circuit board; is disposed above the second light-emitting elements; and an optical cover is disposed above the first optical element and the second optical element, wherein the second optical element presses the first optical element , and the upper inner edge of the ring block is substantially surrounded by at least one limiting portion, and the first optical element is disposed on the limiting portion.

Images