CN220647989U

CN220647989U - Laser luminous lamp strip

Info

Publication number: CN220647989U
Application number: CN202322443263.7U
Authority: CN
Inventors: 张炳涛; 赵军军
Original assignee: Qingdao Keristuo Optoelectronics Technology Center General Partnership
Current assignee: Qingdao Keristuo Optoelectronics Technology Center General Partnership
Priority date: 2023-09-08
Filing date: 2023-09-08
Publication date: 2024-03-22
Anticipated expiration: 2033-09-08

Abstract

The utility model provides a laser light-emitting lamp strip, which comprises a side light-emitting optical fiber bundle strip, wherein laser light-emitting devices are arranged at two ends of the side light-emitting optical fiber bundle strip, and the laser light-emitting devices at two ends emit laser to the side light-emitting optical fiber bundle strip at the same time; the laser light-emitting device comprises a shell and a laser source, wherein the end part of the side-emitting optical fiber bundle bar is fixed in the shell through an optical fiber connector, and the laser source is detachably arranged in the shell through a bracket. The utility model provides a lamp strip with laser as a light source, which has smooth and uninterrupted light emitting effect. By arranging the laser sources which emit light oppositely at the two ends of the optical fiber, the power of each laser source is reduced on the premise of meeting the same brightness requirement, so that the power consumption and the heating value are reduced, the service life of the laser sources can be prolonged, the potential safety hazard is reduced, and the reliability is high. In addition, the whole structure is simple, the assembly is convenient, no extra heat dissipation equipment is needed, the whole cost is low, and the requirement of the automobile industry for using laser as a decorative lamp can be met.

Description

Laser luminous lamp strip

Technical Field

The utility model relates to the technical field of automotive lamps, in particular to a laser light-emitting lamp strip.

Background

A flexible circuit board is arranged in a flexible lamp strip on the market, a plurality of LED lamp beads are arranged on the circuit board, and the decorative effect can be achieved in a vehicle. However, the photoelectric portion of such a lamp strip is not separated, and thus high water resistance is required. And the light is not uniform, and the heat dissipation of the lamp beads is not good, so that the service life of the lamp strip is not long, and the lamp strip has potential safety hazards. In addition, a lamp strip using laser as a light source exists in the market, but the lamp strip is mainly applied to automobile illumination due to high power consumption and high cost, and is difficult to apply to automobile interior decoration.

Therefore, a novel light-emitting lamp strip replacing the existing LED lamp strip structure is needed, and the novel light-emitting lamp strip not only has light-emitting consistent attractive appearance, but also has longer service life and lower cost.

Disclosure of Invention

An object of the present application is to provide a laser light-emitting light bar, which aims to solve the problems in the prior art.

The embodiment of the application provides a laser light-emitting lamp strip, which comprises a side light-emitting optical fiber bundle strip, wherein laser light-emitting devices are arranged at two ends of the side light-emitting optical fiber bundle strip, and the laser light-emitting devices at the two ends emit laser to the side light-emitting optical fiber bundle strip at the same time;

the laser light-emitting device comprises a shell and a laser source, wherein the end part of the side-emitting optical fiber bundle bar is fixed in the shell through an optical fiber connector, and the laser source is detachably arranged in the shell through a bracket.

Further, a first mounting groove is formed in the shell corresponding to the bracket, and the bracket is mounted in the shell through the first mounting groove; the laser source is arranged in the bracket in an interference manner through the accommodating groove, and the head of the laser source is exposed out of the bracket or is flush with the bracket or is lower than the surface of the bracket by 0.01-1.0mm.

Further, the bracket is in clearance fit with the shell, and the bracket and the shell are fixed through fastening screws or are engaged and fixed through threads.

Further, screw holes or strip-shaped notches are formed in the side faces of the support corresponding to the fastening screws.

Further, the shell corresponds to the optical fiber connector and is provided with a second installation groove, a light passing hole is formed between the second installation groove and the first installation groove, a second step is arranged in the second installation groove, and the optical fiber connector and the pressing ring are respectively and correspondingly installed.

Further, a wire groove is formed in the upper edge of the pressing ring along the radius, the side-emitting optical fiber bundle strip penetrates through the wire groove and is pressed by the wire groove, and the pressing ring is meshed in the second mounting groove or is installed in the second mounting groove in an interference mode.

Further, the surface of the pressing ring is symmetrically provided with circular or semicircular shallow grooves.

Further, the side light-emitting optical fiber bundle bar comprises a plurality of side light-emitting optical fibers, and transparent sheaths are wrapped outside the side light-emitting optical fibers; the fiber core of the side-emitting optical fiber is a glass core or a plastic core.

The beneficial effects of the utility model are as follows: the utility model provides a lamp strip with laser as a light source, which has smooth and uninterrupted light emitting effect. By arranging the laser sources which emit light oppositely at the two ends of the optical fiber, the power of each laser source is reduced on the premise of meeting the same brightness requirement, so that the power consumption and the heating value are reduced, the service life of the laser sources can be prolonged, the potential safety hazard is reduced, and the reliability is high. In addition, the whole structure is simple, the assembly is convenient, no extra heat dissipation equipment is needed, the whole cost is low, and the requirement of the automobile industry for using laser as a decorative lamp can be met.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic view of the outer structure of the housing and the bracket.

Fig. 3 is a schematic cross-sectional structure of the housing.

Fig. 4 is a schematic structural view of a bracket in one embodiment.

Fig. 5 is a schematic structural view of a press ring in an embodiment.

Fig. 6 is a schematic structural diagram of a press ring in another embodiment.

In the figure:

1. a side-emitting fiber bundle bar; 2. a housing; 3. a laser source; 4. an optical fiber connector; 5. a bracket; 6. a receiving groove; 7. a first mounting groove; 8. a fastening screw; 9. a screw hole; 10. a notch; 11. a second mounting groove; 12. a light-transmitting hole; 13. a pressing ring; 14. a wire slot; 15. shallow grooves.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The laser light-emitting lamp strip shown in fig. 1 comprises a side light-emitting optical fiber bundle strip 1, wherein laser light-emitting devices are arranged at two ends of the side light-emitting optical fiber bundle strip 1, and the laser light-emitting devices at the two ends emit laser to the side light-emitting optical fiber bundle strip 1 at the same time. Therefore, the power required by a single laser light source is reduced, the power consumption and the heating value of the single light source are reduced, the temperature of the single light source is not easy to rise, and the lamp is more stable and has longer service life. On the other hand, if one of the two laser light sources is damaged, the other laser light source can continuously emit light, so that the overall use reliability of the light bar is improved.

The laser light emitting device comprises a shell 2 and a laser source 3, wherein the end part of a side-emitting optical fiber bundle bar 1 is fixed in the shell 2 through an optical fiber connector 4, and the laser source 3 is detachably arranged in the shell 2 through a bracket 5.

The laser source 3 is a laser diode or a semiconductor laser diode, and is a common laser source in the market, and is also a main light emitting source in this patent, and wavelength, power, size, packaging form and the like of the laser diode can be selected according TO practical situations.

As shown in fig. 2 and 3, the laser source 3 is mounted in the housing 2 through the bracket 5, the bracket 5 is provided with a receiving groove 6, and the laser diode is directly pressed into the receiving groove 6 of the bracket 5 in an interference manner, in this embodiment, the TO package is adopted, so that a step is arranged in the receiving groove 6, and the step of the bracket 5 is used as a limit until the laser diode contacts the step. If the laser diode is in a plastic package, the laser diode can be a through hole, and if the laser diode is in a F package or C package form, the laser diode needs to be matched with the shape of the laser diode, and a mounting hole site is arranged.

The laser diode pressed to the bottom, the head of which can be exposed out of the bracket 5, can be flush with the bracket 5 or lower than the surface of the bracket 5 by 0.01-1.0mm, is arranged because: if the upper surface of the laser diode head is flush with the support 5 or higher than the surface of the support 5, so that the laser diode is as close to the side-emitting optical fiber bundle bar 1 as possible, when the light beam emitted by the laser diode reaches the optical fiber, the light spot will be minimum, so that the efficiency of the light beam entering the optical fiber is improved, and if the head is lower than the surface of the support 5, when the support 5 is at the bottom, the laser diode still has a certain distance from the optical fiber (the distance between the laser diode head and the surface of the support 5 is lower), so that the distance between the laser diode and the optical fiber is relatively increased, and the light spot when the light beam reaches the optical fiber is relatively enlarged, and if the light spot is larger than the core diameter of the optical fiber, light leakage is caused.

The bracket 5 is a machined part, and the material of the bracket can be metal materials such as copper, aluminum, iron, stainless steel and the like, or nonmetal materials such as ceramics, plastics and the like, and most preferably brass, and the bracket is relatively low in processing cost, good in heat conduction performance and good in structural strength. But also molded work pieces, 3D prints, etc.

The shell 2 is provided with a first mounting groove 7 corresponding to the bracket 5, and the bracket 5 is arranged in the shell 2 through the first mounting groove 7. The bracket 5 is in clearance fit with the housing 2 to facilitate replacement of the bracket 5. The bracket 5 and the shell 2 are fixed by a fastening screw 8 or engaged and fixed by threads.

In this embodiment, taking the fixing manner of the fastening screw 8 as an example, screw holes 9 are formed on the side surface of the bracket 5 corresponding to the fastening screw 8, so that the fastening screw 8 is used for positioning and locking when the bracket is matched with the housing 2. However, the number, arrangement form, shape, etc. of the screw holes 9 can be adjusted according to practical applications, for example, the screw holes 9 are changed into the elongated notches 10, as shown in fig. 4, and a certain positioning effect can be achieved.

In addition, on the premise of saving cost, the structure of the screw hole 9 or the notch 10 is not required, and the structure can be applied in the environment with low requirement on structural strength. If screw holes 9 or notches 10 are saved under high structural strength, the reinforcing mode of the adhesive can be adopted, but the adhesive can increase the repairing difficulty.

In addition, the bracket 5 and the housing 2 may be screw-fitted, but the cost is increased correspondingly, and the assembly labor cost is increased, so that the screw-fitted bracket is not the most preferable, though it is an embodiment.

The housing 2 is also a machined part, and the material of the machined part can be metal materials such as copper, aluminum, iron, stainless steel and the like, or nonmetallic materials such as ceramics, plastics and the like, and most preferably aluminum, and the machined part is relatively low in machining cost, good in heat conduction performance and good in structural strength. It may also be a molded work piece, 3D print, etc.

A stepped hole matched with the bracket 5 can be arranged in the first mounting groove 7. The shell 2 is provided with a second mounting groove 11 corresponding to the optical fiber connector 4, a step hole matched with the optical fiber connector 4 is arranged in the second mounting groove 11, a light passing hole 12 is arranged in the center between the second mounting groove 11 and the first mounting groove 7, and light beams emitted by the laser diode can conveniently reach the side-emitting optical fiber bundle bar 1.

The second installation groove 11 is internally provided with a second step, and the optical fiber connector 4 and the pressing ring 13 are correspondingly installed respectively.

The optical fiber connector 4 can be a machined part, more preferably a die-pressed or injection-molded part, and the material can be iron, stainless steel, plastic, and the like, more preferably plastic, and has the advantages of extremely low cost, moderate structural strength and moderate heat resistance. The optical fiber connector 4 mainly aims at protecting the optical fiber so that the optical fiber cannot be damaged when being matched with other structural parts.

In the present embodiment, the optical fiber connector 4 has a stepped cylindrical shape to correspond to the stepped hole shape of the second mounting groove 11, but the shape, size, etc. thereof may be selected according to practical situations.

The pressing ring 13 is a machined part, and the material of the pressing ring can be metal materials such as copper, aluminum, iron, stainless steel and the like, or nonmetal materials such as ceramics, plastics and the like, and most preferably aluminum, and the pressing ring is relatively low in machining cost, good in heat conduction performance and good in structural strength. But also molded work pieces, 3D prints, etc.

The pressing ring 13 is provided with a wire slot 14 along the radius, the side-emitting optical fiber bundle strip 1 passes through the wire slot 14 and is pressed by the wire slot 14, and the size of the wire slot 14 is smaller than that of the optical fiber connector 4, so that when the pressing ring 13 passes through the side-emitting optical fiber bundle strip 1 and is fixed with the shell 2, the side-emitting optical fiber bundle strip 1 can be fixed by pressing the optical fiber connector 4.

The pressing ring 13 is engaged in the second mounting groove 11 through threads or is mounted in the second mounting groove 11 in an interference manner. The direct interference mounting in the second mounting groove 11 has the advantages of low cost and high assembly efficiency, but the power shortage is difficult to disassemble, and the repair difficulty is high.

As shown in fig. 5 and 6, the surface of the pressing ring 13 is symmetrically provided with circular or semicircular shallow grooves 15 to facilitate the screwing of the pressing ring 13 into the housing 2.

The side-emitting fiber bundle strip 1 is a cluster fiber, which is a common product in the market, unlike the conducting fiber, the conducting fiber transmits light beams through the fiber, so that the loss is reduced as much as possible, and the side-emitting fiber needs to have certain light leakage, so that the fiber emits light as a whole. The inner core of the side luminous optical fiber is composed of a plurality of glass optical fibers with a few microns (such as 300 optical fibers with a few microns) or a plurality of plastic optical fibers with a few microns (such as 100 optical fibers with a few microns and the like), the outer layer is wrapped by a plastic transparent sheath, the flexibility and the bending property of the side luminous optical fiber are good, the side luminous optical fiber is suitable for side luminous, and the side luminous optical fiber is not suitable for conduction when being used as a decorative modeling lamp and an atmosphere lamp.

Plastic optical fibers are made using polymers with high refractive index, such as PMMA (polymethyl methacrylate), while glass optical fibers are made using silicate glass or quartz. The plastic optical fiber has the advantages of easy bending, extremely low cost, good safety, glass dust after the glass optical fiber is broken, and easy harm caused by being sucked into human bodies. However, glass optical fibers have the disadvantage of short transmission distance and uneven front-to-back brightness.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The laser light-emitting lamp strip is characterized by comprising a side light-emitting optical fiber bundle strip, wherein laser light-emitting devices are arranged at two ends of the side light-emitting optical fiber bundle strip, and the laser light-emitting devices at two ends emit laser to the side light-emitting optical fiber bundle strip at the same time;

2. The laser light-emitting lamp strip according to claim 1, wherein the housing is provided with a first mounting groove corresponding to the bracket, and the bracket is mounted in the housing through the first mounting groove; the laser source is arranged in the bracket in an interference manner through the accommodating groove, and the head of the laser source is exposed out of the bracket or is flush with the bracket or is lower than the surface of the bracket by 0.01-1.0mm.

3. A laser light bar as claimed in claim 2, wherein the bracket is in a clearance fit with the housing, the bracket and housing being secured by a set screw or by a threaded engagement.

4. A laser light bar as set forth in claim 3 wherein the side of the bracket is provided with screw holes or elongated notches corresponding to the fastening screws.

5. The laser light-emitting lamp strip according to claim 2, wherein the housing is provided with a second mounting groove corresponding to the optical fiber connector, a light passing hole is arranged between the second mounting groove and the first mounting groove, and a second step is arranged in the second mounting groove and corresponds to the optical fiber connector and the pressing ring respectively.

6. The laser light bar of claim 5, wherein the pressing ring is provided with a wire groove along a radius, the side-emitting fiber bundle bar passes through the wire groove and is pressed by the wire groove, and the pressing ring is engaged in the second mounting groove or is mounted in the second mounting groove in an interference manner through threads.

7. The laser light bar of claim 6, wherein the clamping ring surface is symmetrically provided with circular or semicircular shallow grooves.

8. The laser light bar of claim 1, wherein the side-emitting fiber bundle bar comprises a plurality of side-emitting fibers, the plurality of side-emitting fibers being surrounded by a transparent sheath; the fiber core of the side-emitting optical fiber is a glass core or a plastic core.