CN219063220U - Light guide structure of thick-wall light guide atmosphere lamp - Google Patents

Abstract

The utility model discloses a light guide structure of a thick-wall light guide atmosphere lamp, wherein a light guide is integrally formed based on a double-color injection molding process, so that the light guide effect is very good, and through the alternate design of a convex and transparent white key bulge and a non-transparent black key barrier strip, the three-dimensional effect of the whole shape of the thick-wall light guide is improved, the appearance effect of a black-and-white piano key is formed, and the integral aesthetic feeling is further improved by adopting black-and-white contrast color matching; and through setting up bar receipts light diffusion decorative pattern, not only can receive light effectively, promoted the holistic luminance of light guide, can expand the light moreover fast, make the holistic effect of lighting of light guide more even, simultaneously, every two white key protruding is a set of, every white key protruding configuration LED lamp pearl of group not only can guarantee the luminance of lighting of light guide, can effectively avoid the condition that the bright spot of highlighting appears in white key protruding moreover, the LED lamp pearl has reduced half quantity simultaneously, both reduced the cost by a wide margin, reduced PCBA's wiring degree of difficulty and manufacturing degree of difficulty by a wide margin again.

Description

Light guide structure of thick-wall light guide atmosphere lamp

Technical Field

The utility model relates to the technical field of automotive interior small lamps, in particular to a light guide structure of a thick-wall light guide atmosphere lamp.

Background

As cars have long entered thousands of households, people have long been limited to the most basic travel needs for cars. As people have higher and higher requirements on the technological sense and the high-grade sense of automotive interiors, more and more automobile types are added with atmosphere lamp designs. Among them, the linear atmosphere lamp is used as an instrument desk atmosphere lamp, a door atmosphere lamp, etc., and belongs to the most widely used atmosphere lamp. According to the different light emitting modes, the linear atmosphere lamps are mainly divided into hidden linear atmosphere lamps and direct display type linear atmosphere lamps.

For the existing linear atmosphere lamp with a direct display type, the linear light guide is generally adopted, so that the appearance width is very narrow, generally only 2-5mm, and no shape is visible in the extinguishing state, so that no decorative effect is achieved. In addition, for the same automobile, the low-cost automobile model is not provided with an atmosphere lamp, so that either an interior trim board without the atmosphere lamp is re-molded, or a special decoration piece is re-installed at the original mounting position of the interior trim board to fill the gap of the atmosphere lamp, but the decoration piece is required to be molded, so that the cost of the two modes is relatively high, and the two modes are not ideal solutions.

Therefore, referring to chinese patent CN217540539U and CN115158156a, the applicant has designed a general structure capable of being used as a decorative strip and a stereo linear atmosphere lamp, and can cancel PCBA and wire harness when used on a low-profile vehicle type, and directly use the decorative strip as a linear decorative strip, without using a new interior trim board or a new decorative piece, thereby not only greatly reducing cost, but also reducing management difficulty of parts. However, some host plants react to the applicant: the existing light guide has not only the outstanding appearance structure but also slightly insufficient stereoscopic impression, and has single color and insufficient contrast when used as a decoration. And each light guide unit is provided with an independent light condenser, each light condenser is required to be independently provided with an LED lamp bead, so that the quantity of the LED lamp beads is very high, the manufacturing cost is high, the wiring of the LED lamp beads on the PCBA is very dense, the design and manufacturing difficulty of the PCBA are high, meanwhile, the light condenser is positioned right behind a three-dimensional effect light emitting groove due to the fact that the LED lamp beads are right opposite to the light condenser, the eyes can easily see bright spots caused by the LED lamp beads, and the optical effect is always not ideal.

Solving the above problems is urgent.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a light guide structure of a thick-wall light guide atmosphere lamp.

The technical scheme is as follows:

the utility model provides a light guide structure of thick wall light guide atmosphere lamp, includes the PCBA that light guide and integrated with a plurality of LED lamp pearls, its characterized in that: the light guide comprises a light transmitting part and a shading part, the light transmitting part made of light transmitting plastic material and the shading part made of shading plastic material are integrally formed through a double-color injection molding process, the light transmitting part comprises a light inlet strip and a light outlet strip which are arranged side by side along the width direction of the light transmitting part, white key protrusions distributed along the length direction of the light outlet strip are formed in a protruding mode, the shading part is provided with black key blocking strips distributed along the length direction of the light guide, the white key protrusions and the black key blocking strips are alternately arranged along the length direction of the light guide, at least one strip-shaped light receiving diffusion pattern extending along the length direction of the light inlet strip is formed on one side surface of the light inlet strip in a protruding mode, the light outlet surface of each LED lamp bead faces the strip-shaped light receiving diffusion pattern, each two adjacent white key protrusions are in a group, and one LED lamp bead is arranged in the middle position of each group of the white key protrusions.

Compared with the prior art, the utility model has the beneficial effects that:

according to the light guide structure of the thick-wall light guide atmosphere lamp, the light guide is integrally formed based on the double-color injection molding process, so that the light guide effect is very good, and through the alternate design of the convex and transparent white key protrusions and the opaque black key barrier strips, the stereoscopic impression of the whole shape of the thick-wall light guide is improved, the appearance effect of a black-and-white piano key is formed, the aesthetic feeling is good, and the integral aesthetic feeling is further improved through the color matching of black-and-white contrast and the strong color contrast; and in the strip-shaped light receiving diffusion patterns are arranged, light emitted by the LED lamp beads enters the light inlet belt from the strip-shaped light receiving diffusion patterns, and the strip-shaped light receiving diffusion patterns are of a strip-shaped structure penetrating through the light inlet belt along the length direction, so that more light rays enter the light inlet belt, the overall brightness of the light guide is improved, the light can be rapidly expanded, the overall lighting effect of the light guide is more uniform, the overall light effect of the light guide is improved, meanwhile, every two white key protrusions are in a group, each group of white key protrusions are provided with one LED lamp bead, the lighting brightness of the light guide can be ensured through the one-to-two design, and the situation that the white key protrusions have high brightness spots can be effectively avoided due to the fact that the LED lamp beads are not arranged at the rear positions of the white key protrusions, the light effect is improved, the LED lamp beads are reduced by half, the cost is greatly reduced, and the wiring difficulty and manufacturing difficulty of the PCBA are greatly reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the mating relationship of a light guide and each LED bead;

FIG. 3 is a cross-sectional view at A-A in FIG. 2;

FIG. 4 is a schematic perspective view of a light guide;

FIG. 5 is an appearance effect diagram when the light guide is not lit;

fig. 6 is a schematic plan view of a light guide.

Detailed Description

The utility model is further described below with reference to examples and figures.

As shown in fig. 1-6, a light guiding structure of a thick-wall light guiding atmosphere lamp mainly comprises a light guide 1 and a PCBA2, wherein a plurality of LED lamp beads 21 are integrated on the PCBA2, and each LED lamp bead 21 is arranged along the length direction of the PCBA2, and the linear atmosphere lamp is often provided with an upward or downward bending shape, so in the embodiment, the PCBA5 is provided with a plurality of sections, and adjacent PCBAs 5 are connected by adopting an FFC flat cable, so that the connection is stable and reliable, the space occupation is small, and meanwhile, compared with a whole PCBA with a special shape, the scheme of the embodiment can effectively reduce the cost.

The light guide 1 comprises a light transmitting member 11 and a light shielding member 12, wherein the light transmitting member 11 is made of a light transmitting plastic material, and the light shielding member 12 is made of a light shielding plastic material, namely: the light shielding piece 12 is made of opaque plastic, and the light transmitting piece 11 and the light shielding piece 12 are integrally formed by a double-color injection molding process, so that the light shielding piece is high in structural strength, good in reliability and durable in use. In this embodiment, the transparent member 11 is preferably made of colorless or light-colored transparent plastic, and the light shielding member 12 is preferably made of black plastic.

The light-transmitting member 11 includes a light-in strip 111 and a light-out strip 112 arranged side by side in the width direction thereof, the light-shielding member 12 is integrally molded on the light-out strip 112 by a double-shot molding process, white key protrusions 112a distributed in the length direction thereof are formed on the light-out strip 112 in a protruding manner, specifically, the white key protrusions 112a are protruded in the thickness direction of the light-out strip 112, the light-shielding member 12 has black key barrier strips 121 distributed in the length direction thereof, and the white key protrusions 112a and the black key barrier strips 121 are alternately arranged in the length direction of the light guide 1. Therefore, based on the integrated molding of the double-color injection molding process, the light guide effect is ensured, and the alternate design of the convex and light-transmitting white key protrusions 112a and the opaque black key barrier strips 121 improves the stereoscopic impression of the whole shape of the thick-wall light guide, forms the appearance effect of the black-and-white piano keys, has good aesthetic feeling, and further improves the whole aesthetic feeling by adopting the color matching of black-and-white contrast and the strong color contrast.

Meanwhile, at least one strip-shaped light receiving diffusion pattern 111a extending along the length direction of the light entering strip 111 is formed on one side surface of the light entering strip 111 close to the white key protrusions 112a in a protruding mode, the light emitting surface of each LED lamp bead 21 faces the strip-shaped light receiving diffusion pattern 111a, each two adjacent white key protrusions 112a are in a group, and one LED lamp bead 21 is arranged in the middle position of each group of white key protrusions 112 a.

Through setting up bar receipts light diffusion decorative pattern 111a, the light that LED lamp pearl 21 was emergent gets into light band 111 from bar receipts light diffusion decorative pattern 111a, because bar receipts light diffusion decorative pattern 111a is long bar-shaped structure that runs through light band 111 along length direction, not only can receive light effectively, make more light get into light band 111, the holistic luminance of light guide 1 has been promoted, and expand the light fast, make the holistic effect of lighting of light guide 1 more even, the holistic lamp effect of light guide 1 has been promoted, simultaneously, every two white key protruding 112a is a set of, every group white key protruding 112a disposes an LED lamp pearl 21, through the design of this kind of one drags two, not only can guarantee the luminance of lighting of light guide 1, and because LED lamp pearl 21 is not in the rear position of each white key protruding 112a, the condition that the bright spot appears in white key protruding 112a has effectively been promoted, LED lamp pearl 21 has reduced half quantity simultaneously, the degree of difficulty has been reduced the cost by a wide margin, the difficulty has been reduced the wiring and manufacturing PCBA by a wide margin again.

Referring to fig. 2-4, the light shielding member 12 further includes a light shielding strip 122 extending along the length direction of the light guide 1, one end of each black key barrier 121 close to the light inlet strip 111 is connected to the light shielding strip 122, and the light shielding strip 122 is located between the light inlet strip 111 and the light outlet strip 112, so that a better light shielding effect can be achieved, the light leakage problem is avoided, and the overall light efficiency of the light guide 1 is improved.

The black key barrier strip 121 is close to the one end of shading strip 122 and all protrudes and is formed with the top muscle 123, and each top muscle 123 is kept away from the one end terminal surface of light-emitting strip 112 and is ejecting holding surface 123a, and the protrusion height of each top muscle 123 is higher than the protrusion height of each white key arch 112 a. Through setting up top muscle 123, can utilize ejecting holding surface 123a to come ejecting drawing of patterns, design the flat roof line of drawing of patterns at ejecting holding surface 123a simultaneously, shelter from through the cooperation lamp shade, make all flat roof lines from the outward appearance all invisible, further promoted the outward appearance aesthetic feeling of atmosphere lamp.

Further, the supporting surface 123a is fully covered with dermatoglyph or spark lines, so that friction can be increased, the lampshade can be better supported, and abnormal sound is avoided.

Further, the end faces of the white key protrusions 112a far away from the light-emitting band 112 are all light-emitting end faces 112a1, and rounded corners are formed at one end of each light-emitting end face 112a1 close to the light-entering band 111 and one end of each ejection supporting face 123a far away from the light-entering band 111, so that the top ribs 123 and the appearance of the white key protrusions 112a form a correspondence, and the third dimension and the layering of the static appearance of the atmosphere lamp are further improved.

The surface of the light inlet band 111, the light outlet band 112, which is far away from the white key protrusions 112a, and the light emitting end faces 112a1 are all full of dermatoglyph or fire patterns, and the side walls of the white key protrusions 112a are smooth planes. Namely: the outer surface of the light inlet tape 111 is covered with the dermatoglyph or spark line, the entire bottom surface of the light guide 1 is covered with the dermatoglyph or spark line, by such design, the light inlet area (the surface of the light inlet tape 111 near the white key protrusion 112 a) is covered with the dermatoglyph or spark line for fully mixing light, one function of the dermatoglyph or spark line is covered with the entire bottom surface of the light guide 1 for fully mixing light, the other function is to play the role of optical pattern, and the light can be uniformly reflected to the light outlet area (the white key protrusion 112 a). In this embodiment, the skin line or spark line is preferably VDI27. Similarly, the outer end surfaces of the white key protrusions 112a are all full of dermatoglyph or fire patterns, and the side walls of the white key protrusions 112a are smooth planes. Specifically, the pattern of the external end surface of the white key protrusion 112a is preferably VDI27, and the smooth surface of the side wall of the white key protrusion 112a is polished to be a highlight surface by polishing, so that when the white key protrusion 112a is lightened, the brightness of the side wall of the white key protrusion 112a is far lower than the external end surface of the white key protrusion 112a, thereby not only making the edge and corner boundary of the white key protrusion 112a more clear, but also making the side wall of the white key protrusion 112a to create a crystal clear and deep three-dimensional sense, and further improving the aesthetic feeling of appearance.

Referring to fig. 1-4, a plurality of supporting bosses 111b are formed on a side surface of the light-incoming strip 111 adjacent to the white key protrusions 112a in a protruding manner, the light-receiving and diffusing patterns 111a extend through the supporting bosses 111b, the supporting bosses 111b are located at the boundary positions of the groups of white key protrusions 112a, and the PCBA2 is supported on the supporting bosses 111 b. Through setting up support boss 111b, can start good supporting role to PCBA2 that length is very long, prevent PCBA2 and warp to guarantee the accuracy of each LED lamp pearl 21 position.

Further, the boss advances all the protrusion and is formed with PCBA supporting rib 111b1 on the optical terminal surface 111b1, and each PCBA supporting rib 111b1 all extends along the width direction of advancing optical tape 111, and PCBA2 supports simultaneously on each PCBA supporting rib 111b1, can effectively promote the reliability that supports, avoids appearing becoming flexible and abnormal sound problem.

Further, at least one of the supporting bosses 111b is formed with a positioning protrusion 111b2 in a protruding manner, the PCBA2 is provided with a positioning bayonet 22 adapted to the positioning protrusion 111b2, and each positioning protrusion 111b2 is respectively clamped into the corresponding positioning bayonet 22, so that the PCBA2 can be reliably positioned, and the accuracy of the position of each LED lamp bead 21 is ensured.

Referring to fig. 2, the light-feeding strip 111 is provided with at least two mounting locking holes 111c along the length direction thereof, and each mounting locking hole 111c is located at one end of the corresponding supporting boss 111b near the light-outputting strip 112. Since the interval between the LED lamp beads 21 is doubled, the installation locking holes 111c can be conveniently arranged near the support boss 111b, and the influence of the installation locking holes 111c on the optical effect of the light guide 1 can be avoided.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a light guide structure of thick wall light guide atmosphere lamp, includes the PCBA that light guide and integrated with a plurality of LED lamp pearls, its characterized in that: the light guide comprises a light transmitting part and a shading part, the light transmitting part made of light transmitting plastic material and the shading part made of shading plastic material are integrally formed through a double-color injection molding process, the light transmitting part comprises a light inlet strip and a light outlet strip which are arranged side by side along the width direction of the light transmitting part, white key protrusions distributed along the length direction of the light outlet strip are formed in a protruding mode, the shading part is provided with black key blocking strips distributed along the length direction of the light guide, the white key protrusions and the black key blocking strips are alternately arranged along the length direction of the light guide, at least one strip-shaped light receiving diffusion pattern extending along the length direction of the light inlet strip is formed on one side surface of the light inlet strip in a protruding mode, the light outlet surface of each LED lamp bead faces the strip-shaped light receiving diffusion pattern, each two adjacent white key protrusions are in a group, and one LED lamp bead is arranged in the middle position of each group of the white key protrusions.

2. A light guiding structure of a thick-walled light guiding atmosphere lamp according to claim 1, characterized in that: the shading piece further comprises shading belts extending along the length direction of the light guide, one end of each black key baffle bar, which is close to the light inlet belt, is connected with the shading belt, and the shading belt is positioned between the light inlet belt and the light outlet belt.

3. A light guiding structure of a thick-walled light guiding atmosphere lamp according to claim 2, characterized in that: the black key blend stop is close to the protruding top muscle that is formed with of one end of shading tape, and the one end terminal surface that each top muscle kept away from out the light tape is ejecting holding surface, and the protruding height of each top muscle is higher than the protruding height of each white key.

4. A light guiding structure of a thick-walled light guiding atmosphere lamp according to claim 3, characterized in that: the ejection supporting surface is full of dermatoglyph or spark lines.

5. A light guiding structure of a thick-walled light guiding atmosphere lamp according to claim 3, characterized in that: the end faces of the white key protrusions, which are far away from the light-emitting band, are light-emitting end faces, and round corners are formed at one end, close to the light-entering band, of each light-emitting end face and one end, far away from the light-entering band, of each ejection supporting face.

6. The light guiding structure of a thick-walled light guiding ambient lamp of claim 5, wherein: the surface of the light inlet belt, the light outlet belt, the white key bulges and the light-emitting end surfaces are all full of dermatoglyph or spark lines, and the side walls of the white key bulges are smooth planes.

7. A light guiding structure of a thick-walled light guiding atmosphere lamp according to claim 1, characterized in that: the surface of one side of the light inlet tape, which is close to the white key protrusions, is convexly provided with a plurality of supporting bosses distributed along the length direction of the light inlet tape, each strip-shaped light receiving and diffusing pattern penetrates through each supporting boss, each supporting boss is respectively positioned at the juncture position of each group of white key protrusions, and the PCBA is simultaneously supported on each supporting boss.

8. The light guiding structure of a thick-walled light guiding ambient lamp as defined in claim 7, wherein: the boss advances all the protrusion and is formed with PCBA supporting rib on the optical terminal surface, and each PCBA supporting rib all extends along the width direction of advancing the optical tape, PCBA supports simultaneously on each PCBA supporting rib.

9. The light guiding structure of a thick-walled light guiding ambient lamp as defined in claim 7, wherein: at least one of the support bosses is provided with a positioning protrusion in a protruding mode, the PCBA is provided with a positioning bayonet matched with the positioning protrusion, and each positioning protrusion is respectively clamped into the corresponding positioning bayonet.

10. The light guiding structure of a thick-walled light guiding ambient lamp as defined in claim 7, wherein: at least two installation locking holes are formed in the light inlet belt along the length direction of the light inlet belt, and each installation locking hole is respectively positioned at one end, close to the light outlet belt, of the corresponding supporting boss.

Images