High-brightness and high-precision mounting structure for soft light guide of atmosphere lamp

Abstract

The utility model discloses a high-brightness high-precision mounting structure for a soft light guide of an atmosphere lamp, which comprises the soft light guide in a linear structure, and the soft light guide and a condensing lens are connected with a lamp holder through a soft guide plug connector. Reliable installation of the soft light guide and the condensing lens is guaranteed, the relative positions of the soft light guide, the condensing lens and the LED can be accurately controlled, and the consistency of the lighting effect is guaranteed; the assembly efficiency is improved, the process is easy to standardize, and automatic assembly is easy to realize; when the lamp cannot be lightened, the lamp can be conveniently maintained or replaced, and the operation is simple; moreover, compared with the contact between the heat shrinkable sleeve and the soft light guide, the light absorption can be reduced, and the light emitting brightness of the soft light guide can be improved; meanwhile, due to the fact that the LED and the condensing lens are not shielded completely, more light rays can enter the soft light guide, and the light emitting brightness of the soft light guide is further improved; in addition, the condensing lens is additionally arranged, so that the light emitting brightness and the lighting effect of the soft light guide are further improved.

Description

Technical Field

[0001] This utility model relates to the field of ambient lighting technology, specifically to a high-brightness and high-precision installation structure for a soft light guide in ambient lighting. Background Technology

[0002] Linear light guides can be classified into two main categories based on their material hardness: rigid light guides and flexible light guides. Rigid light guides are injection molded, but due to the high cost of molds, they are mostly used for high-volume products to achieve lower unit costs. Flexible light guides are cut to form their ends, eliminating mold costs, and their price is determined by their length. Therefore, flexible light guides are suitable for low-volume products and the aftermarket.

[0003] Please see Figure 1 The current method for installing flexible light guides involves first fitting the heat shrink tubing 6 onto the light guide mounting base 211 of the lamp holder 2, then inserting the flexible light guide 1 into the mounting base 211. A hairdryer is then used to heat the heat shrink tubing 6 for about 30 seconds, causing it to shrink and tightly wrap around the mounting base and the flexible light guide 1. Finally, the heat shrink tubing 6 is allowed to cool for about one minute to complete the installation. However, this current method has the following problems:

[0004] 1. Both heating and cooling steps are done manually by workers and cannot be automated. The flexible nature of the soft optical guide 1 also leads to high arbitrariness and non-standardized processes.

[0005] 2. The process of processing heat shrink tubing 6 takes a long time (about 90 seconds), and workers are exposed to hot air during heating, resulting in a poor working environment.

[0006] 3. After production, the heat shrink tubing 6 is not removable and is a disposable product, making it impossible to replace or provide after-sales service.

[0007] 4. After the heat shrink tubing 6 cools down, it adheres tightly to the soft light guide 1 and absorbs some light, resulting in very low final light output brightness.

[0008] 5. When installing the flexible light guide 1, the heat shrink tubing 6 and the lamp head 2 block the field of view, making it impossible to see the installation distance between the LED and the flexible light guide 1. This results in the distance between the light-inlet end face of the flexible light guide 1 and the light-emitting surface of the LED being uncontrollable, thus affecting the consistency of luminous efficacy.

[0009] Please see Figure 2 To address the issue mentioned in point 5 above, the existing soft light guide mounting structure uses a light guide positioning structure 211d in the light guide mounting hole 211a to limit the maximum insertion depth of the soft light guide 1, thereby ensuring the distance between the light-inlet end face of the soft light guide 1 and the light-emitting surface of the LED. However, this light guide positioning structure 211d partially blocks the light-inlet end face of the soft light guide 1, resulting in a reduction in the amount of light entering the light guide and a further reduction in the output brightness of the soft light guide 1.

[0010] Furthermore, soft light guides have no optical patterns and emit light uniformly at 360°. Therefore, only about 1 / 6 of the light can be utilized (the light emission area is generally about 60°). As a result, the optical utilization rate of soft light guides is low, leading to unsatisfactory light emission brightness, which limits the promotion and application of soft light guides. Utility Model Content

[0011] To solve the above technical problems, this utility model provides a high-brightness and high-precision installation structure for ambient light soft light guides.

[0012] The technical solution is as follows:

[0013] The first aspect of this application relates to a high-brightness, high-precision mounting structure for a flexible light guide in an ambient light, comprising a linear flexible light guide with a lamp head at at least one end. Each lamp head includes a lamp housing and a PCBA mounted within the lamp housing. Each lamp housing has a light guide mounting base with light guide mounting holes. The flexible light guide is detachably mounted in the corresponding light guide mounting holes via flexible light guide connectors. Each flexible light guide connector has a light guide positioning hole adapted to the flexible light guide. The end of the flexible light guide is detachably mounted in the light guide positioning hole from one end. A condenser lens is mounted at the other end of each light guide positioning hole. The light-emitting surface of an LED integrated on the PCBA faces the light-inlet surface of the corresponding condenser lens without obstruction. The light-emitting surface of the condenser lens faces the light-inlet surface of the flexible light guide and its adjacent light guide.

[0014] The above-mentioned high-brightness, high-precision mounting structure for ambient light soft light guides involves first installing the end of the soft light guide and the focusing lens onto the corresponding soft light guide connector, and then installing the soft light guide connector into the corresponding light guide mounting hole. This not only ensures reliable installation of the soft light guide but also allows for precise control of the relative positions of the soft light guide, focusing lens, and LED by controlling the installation positions of the soft light guide and focusing lens on the soft light guide connector, thus ensuring consistent light efficiency. The entire assembly process involves only two steps: connecting the soft light guide and focusing lens to the soft light guide connector, and connecting the soft light guide connector to the light guide mounting base. This not only improves assembly efficiency by tens of times but also facilitates standardized procedures. It can be performed manually or automatically. Furthermore, even with manual assembly, it avoids harsh environmental factors, making the working environment more comfortable. When the lamp head fails to light, simply separating the soft light guide connector from the light guide mounting base allows for easy removal and repair or replacement of the lamp head, simplifying the operation. It offers several advantages: simpler design, lower maintenance costs, and lower light absorption. Furthermore, since the flexible light guide connector is injection molded, it doesn't fully contact the flexible light guide, reducing light absorption and increasing its output brightness compared to heat-shrink sleeve contact. Additionally, the lack of obstruction between the LED's emitting surface and the condenser lens's inlet allows more light to enter the flexible light guide, further enhancing its output brightness. The addition of a condenser lens not only perfectly converges the light collected at the inlet into collimated light, making the light entering the flexible light guide more concentrated and improving light utilization, but also enhances light shaping and mixing, effectively solving the problem of light dispersion and improving the overall luminous efficiency of the flexible light guide. Moreover, the condenser lens's outlet precisely defines the position of the flexible light guide's inlet, further improving the installation accuracy of the flexible light guide.

[0015] In some embodiments, the light-inlet end face of the lens is a tapered structure with a diameter that gradually decreases away from the soft light guide.

[0016] In some embodiments, the end of the focusing lens away from the flexible light guide passes through the corresponding light guide positioning hole and gradually expands to form a conical boss with a conical outer wall. The light-inlet end face of the lens with the conical structure is coaxially integrally formed on the end face of the conical boss away from the flexible light guide.

[0017] In some embodiments, the light-emitting end face of the lens is provided with a central optical tooth located at its center and a plurality of annular optical teeth coaxially arranged around the central optical tooth. The diameter of each annular optical tooth increases sequentially from the inside to the outside. The central optical tooth is a spherical structure. The annular optical teeth are composed of an annular wall and an annular light-emitting surface located outside the annular wall. The annular wall is a cylindrical structure extending toward the light-guiding end face, and the annular light-emitting surface is an annular arc surface structure extending outward from the outer edge of the annular wall.

[0018] In some embodiments, the flexible light guide connector includes two identical semi-assembled parts. The two semi-assembled parts are planar on their adjacent sides and each has a recessed semi-circular groove adapted to the flexible light guide. Each of the two semi-assembled parts has a snap-fit ​​connector on the same side of the semi-circular groove and a snap-fit ​​groove adapted to the snap-fit ​​connector on the other side. When the semi-circular grooves of the two semi-assembled parts surround the circumferential outer wall of the flexible light guide and the condenser lens, the two snap-fit ​​connectors are respectively snapped into the corresponding snap-fit ​​grooves to lock the flexible light guide and the condenser lens in the light guide positioning hole formed by the two semi-circular grooves.

[0019] In some embodiments, both semi-assemblies are provided with positioning pins on the same side of the semi-circular groove, and positioning grooves adapted to the positioning pins are provided on the other side. When the semi-circular grooves of the two semi-assemblies surround the circumferential outer wall of the soft light guide and the condenser lens, the positioning pins of the two semi-assemblies are respectively embedded in the corresponding positioning grooves.

[0020] In some embodiments, lens mounting holes are provided in the semicircular grooves of both semi-assemblies, and two lens positioning pins are protruding on the circumferential outer wall of the condensing lens, which are respectively adapted to the corresponding lens mounting holes. When the semicircular grooves of the two semi-assemblies surround the circumferential outer wall of the soft light guide and the condensing lens, the two lens positioning pins are respectively embedded in the corresponding lens mounting holes.

[0021] In some embodiments, the sides of the two semi-assemblies that are far apart from each other are arc-shaped structures. When the semi-circular grooves of the two semi-assemblies surround the circumferential outer wall of the soft light guide and the condenser lens, the sides of the two semi-assemblies that are far apart from each other form a ring structure. Rotary latches that protrude radially outward are provided on the sides of the two semi-assemblies that are far apart from each other.

[0022] The optical guide mounting hole has two symmetrically arranged rotating guide grooves extending circumferentially on its hole wall. Both rotating guide grooves have a locking pin at one end and a locking pin in / out position at the other end. Both rotating guide grooves contract near the locking pin to form a locking protrusion that can limit the rotating locking pin to the locking pin. The optical guide mounting hole has two symmetrically arranged inlet / outlet guide grooves extending axially outward from the corresponding locking pin in / out position.

[0023] The two rotating pins of the soft guide connector are first guided to the corresponding pin entry / exit positions via the corresponding inlet / outlet guide grooves, and then guided to the corresponding pin locking positions via the corresponding rotating guide grooves, and locked by the corresponding locking protrusions.

[0024] In some embodiments, each of the two semi-assemblies, on the side furthest from each other, has a mounting baffle that protrudes radially at the end outside the light guide mounting hole. The outer end face of the light guide mounting base abuts against the mounting baffles of both semi-assemblies. The snap-fit ​​connector and snap-fit ​​groove are formed on the mounting baffle.

[0025] Both semi-assembled parts have a reduced diameter section with a semi-circular structure at the end where they are inserted into the optical guide mounting hole. The circumferential outer wall of the reduced diameter section is a conical structure with a diameter that gradually decreases in the direction away from the mounting block at the end away from the mounting block.

[0026] In some embodiments, the lamp housing has a PCBA inlet / outlet on the side away from the light guide mounting base, and a back cover is integrally formed next to the PCBA inlet / outlet that can be opened or closed by flipping. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the installation steps for a soft optical guide in the existing technology.

[0028] Figure 2 This is a schematic diagram of a soft optical guide installation structure in the prior art;

[0029] Figure 3 This is a schematic diagram of the structure of the back cover of this utility model in the open state;

[0030] Figure 4 This is a schematic diagram of the structure of the rear cover of this utility model in the closed state;

[0031] Figure 5 This is a cross-sectional view of the present invention;

[0032] Figure 6 This is a schematic diagram of the lamp holder structure of this utility model;

[0033] Figure 7 This is a schematic diagram showing the cooperation relationship between the flexible light guide, the focusing lens, and the flexible light guide connector of this utility model;

[0034] Figure 8 This is a structural schematic diagram of a semi-assembled component of this utility model;

[0035] Figure 9 This is a schematic diagram of a condenser lens. Detailed Implementation

[0036] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0037] like Figures 3-9 As shown, a high-brightness, high-precision mounting structure for an ambient light's flexible light guide mainly includes a linear flexible light guide 1. Specifically, the flexible light guide 1 is a flexible linear light guide; typically, it is made of PMMA or PC, and after molding, it is very flexible and easy to bend. At least one end of the flexible light guide 1 is provided with a lamp holder 2, meaning either one end of the flexible light guide 1 is provided with a lamp holder 2, or both ends of the flexible light guide 1 are provided with lamp holders 2.

[0038] Each lamp holder 2 includes a lamp housing 21 and a PCBA 22. The PCBA 22 is installed inside the lamp housing 21, and an LED 221 is integrated on the PCBA 22. Each lamp housing 21 is provided with a light guide mounting base 211, and each light guide mounting base 211 has a light guide mounting hole 211a. The light-emitting surface of the LED 221 integrated on the PCBA 22 faces the light guide mounting hole 211a.

[0039] In this embodiment, the flexible light guide 1 is detachably installed in the corresponding light guide mounting hole 211a via the flexible light guide connector 3. Specifically, each flexible light guide connector 3 has a light guide positioning hole 32 adapted to the flexible light guide 1. The end of the flexible light guide 1 is detachably installed in the light guide positioning hole 32 from one end of the light guide positioning hole 32, and a condensing lens 4 is installed at the other end of each light guide positioning hole 32. Furthermore, the light-emitting surface of the LED 221 integrated on the PCBA 22 faces the light-inlet end face 41 of the corresponding condensing lens 4, and there is no obstruction between them. The light-emitting end face 42 of the condensing lens 4 faces the flexible light guide 1 and its adjacent light-inlet end face 11.

[0040] Therefore, in this embodiment, the end of the flexible light guide 1 and the condenser lens 4 are first installed on the corresponding flexible guide connector 3, and then the flexible guide connector 3 is installed in the corresponding light guide mounting hole 211a. This not only ensures the reliable installation of the flexible light guide 1, but also allows for precise control of the distance between the light guide inlet end face 11 of the flexible light guide 1 and the lens outlet end face 42 of the condenser lens 4, as well as the distance between the lens inlet end face 41 of the condenser lens 4 and the light-emitting surface of the LED 221, by controlling the installation positions of the flexible light guide 1 and the condenser lens 4 on the flexible guide connector 3 (i.e., precise control of the relative positions of the flexible light guide 1, the condenser lens 4, and the LED 22). This ensures the consistency of the light efficiency of the flexible light guide 1. The entire assembly process involves only two steps: connecting the flexible light guide 1 and the focusing lens 4 to the flexible guide connector 3, and connecting the flexible guide connector 3 to the light guide mounting base 211. This not only improves assembly efficiency by tens of times but also facilitates standardized procedures. It can be performed manually or automatically. Furthermore, even when using manual assembly, it does not cause harsh environmental factors, making the working environment more comfortable. When the lamp head fails to light up, the lamp head 2 can be removed for repair or replacement simply by separating the flexible guide connector 3 from the light guide mounting base 211. The operation is simple and the maintenance cost is low.

[0041] Furthermore, since there is no obstruction between the light-emitting surface of LED221 and the light-inlet end face 41 of the condenser lens 4, more light can enter the soft light guide 1, thereby improving the output brightness of the soft light guide 1. At the same time, by adding the condenser lens 4, the condenser lens 4 can not only perfectly converge the light collected by the light-inlet end face 41 of the lens into collimated light, making the light emitted from the light-outlet end face 42 of the lens and entering the soft light guide 1 more concentrated, improving the light utilization rate and further improving the output brightness of the soft light guide 1, but also better shape the light and mix the light more evenly, effectively solving the problem of light dispersion and improving the overall light efficiency of the soft light guide 1.

[0042] Furthermore, the soft light guide 1 can be installed by abutting the light guide inlet end face 11 of the soft light guide 1 with the light exit end face 42 of the condenser lens 4, so that the light exit end face 42 of the condenser lens 4 can accurately define the position of the light guide inlet end face 11 of the soft light guide 1, thereby further improving the installation position accuracy of the soft light guide 1.

[0043] Furthermore, since the flexible connector 3 is an injection-molded part, it does not have full-surface contact with the flexible light guide 1. Therefore, compared to the contact between the heat shrink sleeve and the flexible light guide 1, it can reduce light absorption and improve the light output brightness of the flexible light guide 1. Further, the walls of the semi-circular grooves 311 of the two semi-assembled parts 31 of the flexible connector 3 are frosted, which effectively reduces the contact area between the groove walls of the semi-circular grooves 311 and the flexible light guide 1, further reducing light absorption and improving the light output brightness of the flexible light guide 1.

[0044] In this embodiment, the soft-conducting connector 3 includes two semi-assembled parts 31 with identical structures, which can be manufactured with only one injection mold. This not only reduces mold costs but also eliminates the problem of error prevention.

[0045] Both of the two semi-assembled parts 31 have planar structures on the side that is close to each other, and each has a semi-circular groove 311 that is adapted to the soft light guide 1. This allows the two semi-assembled parts 31 to fit together on the circumferential outer side of the soft light guide 1 through their respective semi-circular grooves 311.

[0046] Both semi-assembled parts 31 have a snap-fit ​​connector 312 on the same side of the semi-circular groove 311, and a snap-fit ​​groove 313 adapted to the snap-fit ​​connector 312 on the other side. That is, the two semi-assembled parts 31 have snap-fit ​​connectors 312 and snap-fit ​​grooves 313 on both sides of the semi-circular groove 311, and the two snap-fit ​​connectors 312 are located on the same side of the corresponding semi-circular groove 311, while the two snap-fit ​​grooves 313 are located on the side of the corresponding semi-circular groove 311 away from the snap-fit ​​connectors 312. Therefore, when the semi-circular grooves 311 of the two semi-assembled parts 31 surround the circumferential outer wall of the flexible light guide 1 and the condenser lens 4, the two snap-fit ​​connectors 312 are respectively snapped into the corresponding snap-fit ​​grooves 313 to lock the flexible light guide 1 and the condenser lens 4 in the light guide positioning hole 32 formed by the two semi-circular grooves 311. That is, the two semi-assembled parts 31 clamp the flexible light guide 1 and the condenser lens 4 between them, which is simple and reliable.

[0047] Furthermore, each of the two semi-assembled parts 31 is provided with a positioning pin 314 on the same side of the semi-circular groove 311, and a positioning groove 315 adapted to the positioning pin 314 on the other side. That is, each of the two semi-assembled parts 31 is provided with a positioning pin 314 and a positioning groove 315 on both sides of the semi-circular groove 311, and the two positioning pins 314 are located on the same side of the corresponding semi-circular groove 311, while the two positioning grooves 315 are located on the side of the corresponding semi-circular groove 311 away from the positioning pin 314. Therefore, when the semi-circular grooves 311 of the two semi-assembled parts 31 surround the circumferential outer wall of the flexible light guide 1 and the condenser lens 4, the positioning pins 314 of the two semi-assembled parts 31 are respectively embedded in the corresponding positioning grooves 315, thereby ensuring the accuracy of the installation position of the two semi-assembled parts 31.

[0048] Furthermore, the two semi-assembled parts 31 are both arc-shaped on the sides that are far apart from each other. When the semi-circular grooves 311 of the two semi-assembled parts 31 surround the circumferential outer wall of the soft light guide 1 and the condenser lens 4, the two semi-assembled parts 31 form a ring-shaped structure on the sides that are far apart from each other, so that the soft guide connector 3 can rotate in the light guide mounting hole 211a to lock or unlock.

[0049] Specifically, each of the two semi-assembled parts 31 has a radially outwardly protruding rotating pin 316 on the side away from each other. Two circumferentially extending rotating guide grooves 211b are symmetrically arranged on the wall of the light guide mounting hole 211a, and the rotating pins 316 can slide along the corresponding rotating guide grooves 211b. Both rotating guide grooves 211b have a pin locking position 211b1 at one end and a pin insertion / exit position 211b2 at the other end. That is, rotating the flexible guide connector 3 allows both rotating guide grooves 211b to simultaneously be located at the corresponding rotating guide groove 211b's pin locking position 211b1, or simultaneously at the corresponding rotating guide groove 211b's pin insertion / exit position 211b2.

[0050] Meanwhile, both rotating guide grooves 211b contract at positions near the locking pin position 211b1 to form a locking protrusion 211b3 that can limit the rotating pin 316 to the locking pin position 211b1. Two inlet and outlet guide grooves 211c are symmetrically arranged on the wall of the light guide mounting hole 211a, extending outward along the axial direction from the corresponding pin inlet and outlet position 211b2.

[0051] Therefore, when the flexible connector 3 needs to be installed in the optical guide mounting hole 211a, the two rotating pins 316 of the flexible connector 3 are first guided to the corresponding pin entry / exit position 211b2 via the corresponding entry / exit guide groove 211c, and then guided to the corresponding pin locking position 211b1 via the corresponding rotating guide groove 211b. At this time, the two rotating pins 316 are locked by the corresponding locking protrusions 211b3 respectively. Without applying external force or with a small external force, the locking protrusions 211b3 keep both rotating pins 316 in the pin locking position 211b1.

[0052] When it is necessary to remove the flexible connector 3 from the optical guide mounting hole 211a, a large external force is first applied, and the two rotating pins 316, which are both located at the pin locking position 211b1, are squeezed out from the corresponding locking protrusions 211b3 respectively, and slide along the rotating guide groove 211b to the pin entry and exit position 211b2, and then slide out through the corresponding entry and exit guide groove 211c to outside the optical guide mounting hole 211a.

[0053] The above installation method is not only easy to operate, but also has high installation reliability and stability, with extremely high assembly precision, and is not prone to loosening or abnormal noise.

[0054] Furthermore, the width of the rotating guide groove 211b gradually increases from the locking protrusion 211b3 toward the locking pin insertion / exit position 211b2, which can avoid jamming and ensure the convenience of installation.

[0055] It should be noted that the soft guide connector 3 and the optical guide mounting hole 211a can also be fitted using conventional installation and fitting methods such as snap-fit ​​or threaded locking.

[0056] On the side of each of the two semi-assemblies 31 that is far apart from each other, there is a mounting plate 317 that is radially protruding at the end of the two semi-assemblies 311 that is outside the light guide mounting hole 211a. The outer end face of the light guide mounting base 211 abuts against the mounting plates 317 of the two semi-assemblies 31, thereby precisely defining the installation depth of the soft guide connector 3.

[0057] Meanwhile, both the snap-fit ​​connector 312 and the snap-fit ​​groove 313 are formed on the mounting plate 317, which not only has high structural strength but also good connection reliability.

[0058] Furthermore, on the side of each of the two semi-assembled parts 31 that is far apart from each other, a diameter-reduced section 318 with a semi-circular structure is formed at the end where it is inserted into the light guide mounting hole 211a. The circumferential outer wall of the diameter-reduced section 318 is a conical structure with a diameter that gradually decreases in the direction away from the mounting plate 317 at the end away from the mounting plate 317. This allows the soft guide connector 3 to be easily inserted into the light guide mounting hole 211a, ensuring the convenience of assembly.

[0059] Furthermore, each of the two semi-assembled parts 31 has a lens mounting hole 311a in its semi-circular groove 311. The circumferential outer wall of the condensing lens 4 has two lens positioning pins 44 that are adapted to the corresponding lens mounting holes 311a. When the semi-circular grooves 311 of the two semi-assembled parts 31 surround the circumferential outer wall of the soft light guide 1 and the condensing lens 4, the two lens positioning pins 44 are respectively embedded in the corresponding lens mounting holes 311a, thereby ensuring the reliable installation and installation accuracy of the condensing lens 4 on the soft guide connector 3.

[0060] Please see Figure 5 and Figure 9 The light-inlet end face 41 of the lens is a tapered structure with a diameter that gradually decreases in the direction away from the soft light guide 1. This allows the light collected by the light-inlet end face 41 to be perfectly converged into collimated light, thereby making the light emitted from the light-outlet end face 42 of the lens and entering the soft light guide 1 more concentrated, improving the utilization rate of light and achieving the purpose of improving the soft light guide 1.

[0061] Furthermore, the end of the condenser lens 4 furthest from the flexible light guide 1 extends through the corresponding light guide positioning hole 32 and gradually expands to form a conical protrusion 43 with a conical outer wall. The light-incoming end face 41 of the lens, which has a conical structure, is coaxially and integrally formed on the end face of the conical protrusion 43 furthest from the flexible light guide 1. Therefore, by adding the conical protrusion 43, not only can the light-receiving area of ​​the light-incoming end face 41 of the lens be increased, but also the light inside the condenser lens 4 can undergo total internal reflection within itself, preventing it from escaping from the circumferential sidewall of the condenser lens 4, thereby improving the light output brightness of the light-exiting end face 42 of the lens.

[0062] Meanwhile, the lens light-emitting end face 42 is provided with a central optical tooth 422 located at its center and multiple annular optical teeth 421 coaxially arranged around the central optical tooth 422. The diameter of each annular optical tooth 421 increases sequentially from the inside to the outside. The central optical tooth 422 is a spherical structure. The annular optical teeth 421 are composed of an annular wall 421a and an annular light-emitting surface 421b located outside the annular wall 421a. The annular wall 421a is a cylindrical structure extending towards the light-inlet end face 11 of the light guide, and the annular light-emitting surface 421b is an annular arc surface structure extending outward from the outer edge of the annular wall 421a. By designing the above-mentioned special light pattern on the lens light-emitting end face 42, not only can the emitted light be shaped, but the light can also be mixed more uniformly, achieving excellent light mixing effect, effectively solving the problem of light dispersion, and improving the overall light efficiency of the soft light guide 1.

[0063] Please see Figure 3 and Figure 4 The lamp housing 21 has a PCBA inlet / outlet 212 on the side away from the light guide mounting base 211, which allows for easy installation and removal of the PCBA 22.

[0064] Meanwhile, a back cover 213 is integrally formed next to the PCBA inlet / outlet 212, which can be opened or closed by flipping. That is, the back cover 213 is integrally formed with the lamp housing 21, and can be opened by flipping, or closed on the PCBA inlet / outlet 212. Compared with the traditional method of separating the lamp housing and the back cover, it reduces the mold opening cost, thereby effectively reducing the cost.

[0065] Furthermore, multiple PCBA clamping ribs 213a and multiple back cover clips 213b are integrally formed on the inner surface of the back cover 213, and lamp housing 21 has lamp housing slots 214 that correspond one-to-one with each back cover clip 213b. Therefore, when the back cover 213 is closed on the PCBA inlet / outlet 212, each back cover clip 213b is engaged in the corresponding lamp housing slot 214, which is simple and reliable. At the same time, each PCBA clamping rib 213a presses the PCBA 22 firmly into the lamp housing 21, ensuring the reliability of PCBA 22 installation and preventing abnormal noise.

[0066] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A high-brightness, high-precision mounting structure for a flexible light guide in an ambient light, comprising a linear flexible light guide, at least one end of which is provided with a lamp head, each lamp head including a lamp housing and a PCBA mounted in the lamp housing, each lamp housing being provided with a light guide mounting seat, and each light guide mounting seat having a light guide mounting hole, characterized in that: The flexible light guides are detachably installed in corresponding light guide mounting holes via flexible light guide connectors. Each flexible light guide connector has a light guide positioning hole adapted to the flexible light guide. The end of each flexible light guide is detachably installed in a light guide positioning hole from one end of the light guide positioning hole. A condensing lens is installed at the other end of each light guide positioning hole. The light-emitting surface of the LED integrated on the PCBA faces the light-inlet end face of the corresponding condensing lens, and there is no obstruction between them. The light-emitting end face of the condensing lens faces the light-inlet end face of the flexible light guide and its adjacent light guide.

2. The high-brightness, high-precision mounting structure for ambient light soft light guides according to claim 1, characterized in that: The light-inlet end face of the lens is a tapered structure with a diameter that gradually decreases away from the soft light guide.

3. The high-brightness, high-precision mounting structure for ambient light soft light guides according to claim 2, characterized in that: The end of the focusing lens away from the soft light guide passes through the corresponding light guide positioning hole and gradually expands to form a conical boss with a conical outer wall. The light-inlet end face of the lens with a conical structure is coaxially integrally formed on the end face of the conical boss away from the soft light guide.

4. The high-brightness, high-precision mounting structure for ambient light soft light guides according to claim 1, characterized in that: The lens has a central optical tooth located at its center and multiple annular optical teeth coaxially arranged around the central optical tooth. The diameter of each annular optical tooth increases sequentially from the inside to the outside. The central optical tooth is a spherical structure. The annular optical teeth are composed of an annular wall and an annular light-emitting surface located outside the annular wall. The annular wall is a cylindrical structure extending towards the light-guiding end face, and the annular light-emitting surface is an annular arc surface structure extending outward from the outer edge of the annular wall.

5. The high-brightness, high-precision mounting structure of the ambient light soft light guide according to claim 1, characterized in that: The flexible light guide connector includes two identical semi-assembled parts. The two semi-assembled parts are planar on the side closest to each other and are recessed to form a semi-circular groove adapted to the flexible light guide. Both semi-assembled parts are provided with a snap-fit ​​connector on the same side of the semi-circular groove and a snap-fit ​​groove adapted to the snap-fit ​​connector on the other side. When the semi-circular grooves of the two semi-assembled parts surround the circumferential outer wall of the flexible light guide and the condenser lens, the two snap-fit ​​connectors are respectively snapped into the corresponding snap-fit ​​grooves to lock the flexible light guide and the condenser lens in the light guide positioning hole formed by the two semi-circular grooves.

6. The high-brightness, high-precision mounting structure for ambient light soft light guides according to claim 5, characterized in that: Both semi-assemblies have locating pins on the same side of the semi-circular groove, and locating grooves that match the locating pins on the other side. When the semi-circular grooves of the two semi-assemblies surround the circumferential outer wall of the soft light guide and the condenser lens, the locating pins of the two semi-assemblies are respectively embedded in the corresponding locating grooves.

7. The high-brightness, high-precision mounting structure for ambient light soft light guides according to claim 5, characterized in that: Lens mounting holes are provided in the semicircular grooves of both semi-assemblies. Two lens positioning pins are protruding on the circumferential outer wall of the condensing lens and are adapted to the corresponding lens mounting holes. When the semicircular grooves of the two semi-assemblies surround the circumferential outer wall of the soft light guide and the condensing lens, the two lens positioning pins are respectively embedded in the corresponding lens mounting holes.

8. The high-brightness, high-precision mounting structure for ambient light soft light guides according to claim 5, characterized in that: Both of the two semi-assemblies have arc-shaped structures on the sides that are far apart from each other. When the semi-circular grooves of the two semi-assemblies surround the circumferential outer wall of the soft light guide and the condenser lens, the sides that are far apart from each other of the two semi-assemblies form a ring structure. Rotary latches that protrude outward in the radial direction are provided on the sides that are far apart from each other of the two semi-assemblies. The optical guide mounting hole has two symmetrically arranged rotating guide grooves extending circumferentially on its hole wall. Both rotating guide grooves have a locking pin at one end and a locking pin in / out position at the other end. Both rotating guide grooves contract near the locking pin to form a locking protrusion that can limit the rotating locking pin to the locking pin. The optical guide mounting hole has two symmetrically arranged inlet / outlet guide grooves extending axially outward from the corresponding locking pin in / out position. The two rotating pins of the soft guide connector are first guided to the corresponding pin entry / exit positions via the corresponding inlet / outlet guide grooves, and then guided to the corresponding pin locking positions via the corresponding rotating guide grooves, and locked by the corresponding locking protrusions.

9. The high-brightness, high-precision mounting structure for ambient light soft light guides according to claim 5, characterized in that: On the side of each of the two semi-assemblies that is far apart from each other, there is a mounting baffle that protrudes radially at the end outside the light guide mounting hole. The outer end face of the light guide mounting base abuts against the mounting baffles of the two semi-assemblies. The snap connector and snap slot are formed on the mounting baffle. Both semi-assembled parts have a reduced diameter section with a semi-circular structure at the end where they are inserted into the optical guide mounting hole. The circumferential outer wall of the reduced diameter section is a conical structure with a diameter that gradually decreases in the direction away from the mounting block at the end away from the mounting block.

10. The high-brightness, high-precision mounting structure of the ambient light soft light guide according to claim 1, characterized in that: The lamp housing has a PCBA inlet / outlet on the side away from the light guide mounting base, and a back cover is integrally formed next to the PCBA inlet / outlet that can be opened or closed by flipping.

Images