TW202400935A - 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

Car light structure

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

Taillights are a set of lights at the rear of a vehicle, including turn signals, brake lights, position lights, fog lights, reversing lights and parking lights. They are usually used to notify the vehicle behind you of the vehicle's driving status, including turning or braking, to prevent accidents. As for light sources, the current usage trend is mostly LED lights.

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

Please refer to the new patent No. 248764 of the Republic of China, which discloses an improved brake light structure. This brake light structure contacts the 3D circular surface of the outer lens through the surrounding wall. However, when the outer lens is slightly offset, the 3D circular surface cannot be tightly connected to the surrounding wall. Therefore, this design is prone to light leakage problems.

To this end, the present invention provides a car lamp structure to solve the problem of light leakage that is easy to occur in the conventional technology. Furthermore, it can also improve the problem of chipping due to vibration joints, increase the luminous efficiency, improve the problem of insufficient luminous area, and prevent internal luminescence. Light interacts between areas.

One object of the present invention is to have a plurality of light-emitting elements located inside a closed space and in areas not located inside a closed space. The area located in the closed space can increase the luminous efficiency of the light-emitting elements in the area, and the luminous efficiency of the light-emitting elements not located inside the closed space can be increased. Component, the light will be reflected through the inclined surface of the optical component, improving the problem of insufficient light around the car lights.

The invention provides a vehicle lamp structure, which includes a base, a circuit board, at least a 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 disposed on an upper surface of the circuit board. The ring stopper is arranged above the circuit board. The first optical element and the second optical element are respectively disposed above the first light-emitting element and the second light-emitting elements. The optical cover is disposed 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 inside of a convex part of the base, and at least one second connection part is provided on the outside of the second optical element, and the first connection part is fixedly connected to the second optical element. 2. Connector.

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

The present invention provides an embodiment, wherein at least one inclined plane is substantially surrounding 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 plane of the second optical element. After reflection, the light finally emerges through the periphery of the optical cover.

In order to enable you, the review committee, to have a further understanding of the characteristics and effects of the present invention, we would like to provide preferred embodiments and accompanying detailed descriptions, as follows:

In the following, the present invention will be described in detail by illustrating various embodiments of the present invention through drawings. This inventive concept may, however, be embodied in many different forms and should not be construed as limited to the illustrative embodiments set forth herein.

First, please refer to Figures 1 and 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 vehicle light 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, multiple first light-emitting elements 121 are used. In other embodiments, there can also be one first light-emitting element 121, but it is not limited thereto. The first light-emitting element 121 and the 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, while in other embodiments, the ring stopper 13 intermittently surrounds the first light-emitting element 121, but is not limited thereto. . The second optical element 15 is substantially disposed adjacent to the periphery of the first optical element 14 .

Furthermore, in this embodiment, the vehicle light structure 1 has a central axis A. In other embodiments, it may be an asymmetric structure, but is not limited thereto. In this embodiment, the first light-emitting element 121 and the second light-emitting elements 122 are light-emitting diodes (LEDs). In other embodiments, the first light-emitting element 121 and the second light-emitting elements 122 are light-emitting diodes (LEDs). The component 122 may be an organic light emitting diode (OLED), a laser diode (LD), a cold cathode tube (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 are not limited thereto. In this embodiment, the first light-emitting element 121 and the second light-emitting elements 122 are disposed on the same circuit board 11. Therefore, the problems of complicated manufacturing process and high cost caused by being disposed on different circuit boards can be solved. In other embodiments, the first light-emitting element 121 and the second light-emitting elements 122 can also be disposed on different circuit boards (not shown).

Please refer to Figures 3 and 4. Figure 3 is a cross-sectional view of the first embodiment of the present invention, and Figure 4 is a partial cross-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 shell, but it is not limited to this. The circuit board 11 is disposed above the base 10 . The ring stopper 13 is disposed above the circuit board 11. In this embodiment, the ring stopper 13 is disposed on the upper surface 111 of the circuit board 11, and is disposed between the first light-emitting element 121 and the first light-emitting element 121. between the second light-emitting elements 122. In this embodiment, at least one limiting portion 131 is substantially surrounding 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 respectively disposed above the first light-emitting element 121 and the second light-emitting elements 122 . A substantially closed space 132 is formed between the circuit board 11 , the ring stopper 13 and the first optical element 14 . In this embodiment, an inner surface 133 of the ring stopper 13 is a reflective surface. , to enhance the light emitting effect of the substantially enclosed space 132 . The ring blocking member 13 separates the light-emitting areas of the first light-emitting element 121 and the second light-emitting elements 122 of the circuit board 11 so that the light in the two light-emitting areas does not interfere with each other or reduces interference.

In addition, 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 . There is a distance D1 between the optical cover 16 and the first optical element 14 . At least one first connection part 1011 is provided inside the protruding part 101 of the base 10 , and at least one second connection part 152 is provided outside the second optical element 15 , and the first connection part 1011 is fixedly connected to the second connection part 152 . The connecting part 152, in this embodiment, the first connecting part 1011 is a latching slot, and the second connecting part 152 is a latching block, but is not limited thereto. In addition, in this embodiment, the preferred number of the first connecting parts 1011 and the second connecting parts 152 is four each and they are fixed to each other, but it is not limited to this. The method of fastening described in the present invention can be snapping, screwing, riveting, adhesion, magnetic joining, hot pressing, in-mold injection molding, etc., but is not limited thereto. The actual surroundings described in the present invention are continuous surroundings, intermittent surroundings or partial surroundings, but are not limited thereto.

The optical cover 16 has at least one protruding structure 163 substantially surrounding the outside 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 separate different luminous effects (such as separating the light emitted from the first optical element 14 and the light emitted from the second optical element 15), and also It has a beautiful 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 connected through vibration, the protruding structure 163 is likely to cause friction with the second optical element 15, causing fine chips to fall into the vehicle light structure 1. inside, thus affecting product quality and optical light extraction efficiency. Therefore, in this embodiment, there is a gap D2 between the protruding structure 163 of the optical cover 16 and the second optical element 15, so that the protruding structure 163 of the optical cover 16 is not damaged due to vibration. The friction between the second optical element 15 and the second optical element 15 produces fine chips, which helps to improve product quality and avoid affecting the optical light extraction efficiency. It is supplementary to note that in this embodiment, the second optical element 15 can be fixed to the base 10 through the first connecting part 1011 and the second connecting part 152. Therefore, the The protruding structure 163 eliminates the need to suppress the second optical element 15 .

Continuing with 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 emit through the optical cover 16. Due to the sealing effect of the substantially closed space 132, the first light rays 1211 are When the light 1211 is emitted through the first optical element 14 and the optical cover 16 , the luminous efficiency is better. At least one inclined surface 151 is substantially surrounding the upper inner side of the second optical element 15 . Some of the plurality of second light rays 1221 emitted by the second light-emitting elements 122 are reflected by the slope 151 of the second optical element 15 and finally emit light through the periphery of the optical cover 16, thereby increasing the The peripheral luminous area of the vehicle light structure 1 can avoid the problem of failing to pass vehicle lighting regulations due to insufficient peripheral luminescence. Among them, the inclined surface 151 can cause partial reflection and partial refraction (not shown) of the second light rays 1221, and the partial reflection and partial refraction ratios are mainly determined according to the material and installation angle of the second optical element 15.

In the vehicle lamp structure 1 of the present embodiment of the present invention, the ring stopper 13 is provided to prevent the first light rays 1211 of the first light-emitting element 121 and the third light rays 1211 of the second light-emitting elements 122 from interfering with each other. The two light rays 1221 interfere with each other, thereby helping to produce a clearer light shape. In addition, the ring stopper 13, the first optical element 14 and the circuit board 11 form the substantially closed space 132, so that the first light rays 1211 increase the luminous efficiency through the closed space effect; and the second optical The inclined surface 151 of the element 15 reflects part of the second light rays 1221 to increase the peripheral luminous area of the vehicle light structure 1; furthermore, the protruding structure 163 of the optical cover 16 is combined with the second optical element 15 There is no contact (with the gap D2). When vibration bonding is performed, the protruding structure 163 and the second optical element 15 will not generate friction and generate fine chips. Therefore, it helps to improve product quality and avoid affecting optical light output. efficiency.

Please refer to Figure 6, which is an enlarged partial cross-sectional view of the second embodiment of the present invention. The vehicle lamp structure 1B of this embodiment is identical or similar to the vehicle lamp structure 1 of the first embodiment and will not be described again. Only the main differences of this embodiment will be described. In this embodiment, the first optical element 14 of the vehicle light structure 1B is fixed on the inner surface 165 of an optical cover 16. The fastening method can be snapping, bonding, hot pressing, in-mold injection molding, etc., but it does not Not limited to this.

Therefore, this invention is indeed novel, progressive and can be used industrially. It should undoubtedly meet the patent application requirements of my country's Patent Law. I file an invention patent application in accordance with the law and pray that the Office will grant the patent as soon as possible. I am deeply grateful.

However, the above are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention. All changes and modifications can be made equally in accordance with the shape, structure, characteristics and spirit described in the patent scope of the present invention. , should be included in the patent scope of the present invention.

1: Car light structure 1B: Car light structure 10: Base 101:convex part 1011: First connection part 11:Circuit board 111: Upper surface of circuit board 121: First light-emitting element 1211:First Ray 122: Second light-emitting element 1221:Second Ray 13:Ring stopper 131: Limiting part 132: Substantial enclosed space 133: Medial side 14: First optical element 15: Second optical element 151: Incline 152: Second connection 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 three-dimensional view of the first embodiment of the present invention; Figure 2: It is a combination diagram of the first embodiment of the present invention; Figure 3: This is a cross-sectional view of the first embodiment of the present invention; Figure 4: It is a partial cross-sectional enlarged view of the first embodiment of the present invention; Figure 5: This is a schematic diagram of the optical path of the first embodiment of the present invention; and Figure 6: This is a partial cross-sectional enlarged view of the second embodiment of the present invention.

1: Car light structure

10: Base

11:Circuit board

111: Upper surface of circuit board

121: First light-emitting element

122: Second light-emitting element

13:Ring stopper

14:First optical element

15: Second optical element

16: Optical cover

A:Central axis

Claims (12)

A car light structure includes: a base; A circuit board arranged above the base; At least one first light-emitting element is disposed on an upper surface of the circuit board; A ring stopper is arranged above the circuit board; a first optical element disposed above the first light-emitting element; and An optical cover, which is disposed above the first 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 vehicle lamp structure according to 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 surrounding the upper inner edge of the ring stopper, and the first optical element is arranged on the limiting portion. The vehicle light structure as described in claim 1 further includes: A plurality of second light-emitting elements are disposed on the upper surface of the circuit board; and A second optical element is disposed above the second light-emitting elements. The vehicle lamp structure according to claim 4, wherein the ring stopper is disposed on the upper surface of the circuit board and between the first light-emitting element and the second light-emitting elements. The vehicle light structure according to claim 4, wherein the base is provided with a protruding portion above it, at least one first connecting portion is provided on the inside of the protruding portion, and at least one first connecting portion is provided on the outside of the second optical element. Two connecting parts, and the first connecting part is fixedly connected to the second connecting part. The vehicle lamp structure as claimed in claim 6, wherein the first connection part is a clamping slot, and the second connection part is a clamping block. The vehicle lamp structure as claimed in claim 4, wherein the second optical element is substantially adjacent to the periphery of the first optical element. The vehicle light structure of claim 4, wherein at least one inclined plane is substantially surrounding the upper inner side of the second optical element, and part of the light emitted by the second light-emitting elements passes through the inclined plane of the second optical element. After reflection, the light finally emerges through the periphery of the optical cover. The vehicle light structure of claim 4, wherein the optical cover has at least one protruding structure substantially surrounding the outside of an inner surface of the optical cover relative to the second optical element, and the protruding structure is connected to the There is a gap between the second optical elements. The vehicle lamp structure as claimed in claim 1, wherein an inner surface of the ring blocking member is a reflective surface. The vehicle lamp structure as claimed in claim 1, wherein the optical cover is fixed to the base.

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