Indicator lamp light guide structure suitable for atmosphere lamp

Abstract

The utility model discloses an indicating lamp light guide structure suitable for an atmosphere lamp, which belongs to the technical field of lamps and comprises a base shell, and a light guide main body and an LED circuit board are reasonably arranged on the base shell, so that light rays emitted by LED lamp beads are guided out through reflection and are soft and not dazzling; meanwhile, the plurality of light guide units are combined into the light guide main body, and the LED circuit board is buckled and fixed by the light guide main body through the fasteners, so that the light guide main body, the LED circuit board and the base shell are firmly connected and are not easy to shake, and the light guide stability of the LED light source is improved; besides, the multiple shading rib plates are arranged on the base shell, the adjacent LED lamp beads are isolated from one another, the light channeling condition is effectively prevented, and mutual interference between the LED lamp beads is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of lamps, and particularly relates to a light guide structure for an indicator light applicable to an ambient light. Background Art

[0002] An ambient light is a kind of lamp that creates a specific atmosphere by adjusting the light. During the parenting process, mothers and infants need a relatively soft lighting environment for the mother to use when getting up at night or breastfeeding. Since the ambient light can adjust the light intensity as needed to ensure a comfortable lighting environment at different times and in different scenarios, it is widely used. During the use of the ambient light, its indicator light can display the working state of the ambient light. For example, when the light intensity needs to be adjusted, the indicator light can accurately feedback its light intensity level so that the user can timely understand the lighting adjustment state of the ambient light.

[0003] Currently, the indicator light of the ambient light generally arranges LED lamp beads on a PCB circuit board and directly emits light to the outside. However, the directly outward-emitting indicator light is relatively dazzling and to a certain extent affects the use of the ambient light. In the prior art, generally, a light guide column is set, and the total internal reflection of the light guide column is used to transmit the light to achieve the directional transmission of the light. For example, the Chinese patent with the publication number CN200956133Y provides an indicating device. The light-emitting part of the indicating device is relatively installed with the light guide column, which weakens the dazzling problem to a certain extent. However, the installation process of multiple single light guide columns is cumbersome and not firm. For the installation of the light guide column, generally, a limit groove is set at the bottom of the light guide column, but there is a clearance between the light guide column and the limit groove, which makes the light guide column easy to shake, increasing the risk of the light of the LED lamp bead directly shining into the eyes. In addition, multiple LED lamp beads are arranged side by side, and the adjacent LED lamp beads will also produce light crosstalk, affecting the indication feedback of the ambient light. For the ambient light for mothers and infants with color requirements, it will also affect the use experience.

[0004] Therefore, there is an urgent need to provide a light guide structure for an indicator light applicable to an ambient light to solve the deficiencies existing in the above prior art. Summary of the Invention

[0005] In view of the problems in the related art, the utility model proposes a light guide structure for an indicator light applicable to an ambient light to solve the problems of direct light source and light crosstalk existing in the existing indicator light and improve the light guide effect of the indicator light.

[0006] The technical solution of the utility model is realized as follows: A light guide structure for an indicator light applicable to an ambient light includes a base shell, and a light guide body and an LED circuit board are arranged on the base shell;

[0007] The light guide body is fixedly connected to the base shell. A plurality of fasteners are provided at the bottom of the light guide body, and the LED circuit board is fastened and fixed through the fasteners.

[0008] The light guide body includes a plurality of light guide units arranged in parallel. Each light guide unit is connected into a whole through a connecting part. There is a partition groove between two adjacent light guide units. A light-shielding rib corresponding to the partition groove is provided on the inner wall of the base shell. The light-shielding rib is correspondingly clamped into the partition groove to completely or partially block adjacent light guide units.

[0009] A plurality of LED lamp beads are provided on the upper end surface of the LED circuit board. Each LED lamp bead corresponds to a light guide unit one by one. The light guide unit includes a light incident part covering the LED lamp bead, a light guide part for refracting light, and a light emitting part for emitting light. Among them, the light emitting part is not directly opposite to the LED lamp bead.

[0010] A plurality of light through holes are provided at the top of the base shell. The light through holes are correspondingly arranged with each light emitting part. The light emitted by the LED lamp beads is introduced into the light guide unit from the light incident part, and after being refracted by the light guide unit, it is emitted from the light through holes.

[0011] In the present utility model, by reasonably arranging the light guide body and the LED circuit board on the base shell, the light emitted by the LED lamp beads is reflected and led out, which is soft and not dazzling. At the same time, a plurality of light guide units are combined into a light guide body, and the light guide body fastens and fixes the LED circuit board through fasteners, making the connection between the light guide body, the LED circuit board and the base shell firm and not easy to shake, improving the light guide stability of the LED light source. In addition, by providing a plurality of light-shielding ribs on the base shell, adjacent LED lamp beads are isolated from each other, effectively preventing the occurrence of light crosstalk and avoiding mutual interference between LED lamp beads.

[0012] As a further improvement of the above solution, the light incident part includes a base. A concave groove is formed by recessing one side of the base facing the LED lamp bead. The concave groove covers the corresponding LED lamp bead. The depth dimension of the concave groove is equal to or greater than the thickness dimension of the LED lamp bead. By covering the corresponding LED lamp bead with the concave groove, it is ensured that the light emitted by the LED lamp bead is captured and concentrated to the maximum extent, improving the light flux capture rate of the light guide unit and effectively reducing light loss.

[0013] As a further improvement of the above solution, the light guide part includes a vertical light guide member and a horizontal light guide member. The vertical light guide member is located on one side of the base and is arranged in the vertical direction. The horizontal light guide member is located above the vertical light guide member and is arranged in the horizontal direction away from the LED lamp bead. The light emitting part is arranged on the horizontal light guide member.

[0014] As a further improvement of the above solution, a first light guide rib plate is provided between the base and the vertical light guide member, and a second light guide rib plate is provided between the vertical light guide member and the horizontal light guide member; wherein, the width dimension of each light guide rib plate is adapted to the width dimension of the LED lamp beads; and the LED lamp beads, the first light guide rib plate, the second light guide rib plate and the light-emitting part are in the same cross-section. By configuring the vertical light guide member and the horizontal light guide member, and combining the design of the first light guide rib plate and the second light guide rib plate, a multi-directional light guide system is constructed in this embodiment. It is beneficial to reflect and disperse the light, forming a wider light guide area.

[0015] As a further improvement of the above solution, the shape of the light-emitting part is a rotating body with a narrower upper part and a wider lower part, and the upper end surface of the light-emitting part is flush with the upper edge of the light-passing hole. The structure with a narrower upper part and a wider lower part enables the light to be refracted repeatedly during propagation and gradually dispersed, reducing the irritation of strong light to the eyes.

[0016] As a further improvement of the above solution, the base, the vertical light guide member, the horizontal light guide member, the first light guide rib plate, the second light guide rib plate and the light-emitting part are integrally injection-molded.

[0017] As a further improvement of the above solution, the fasteners are circumferentially distributed along the bottom of the light guide body. The fasteners include cantilevers extending in the up and down directions, and the ends of the cantilevers protrude inward to form elastic locking blocks; the LED circuit board acts on the locking blocks from bottom to top, deforming them, and then fastening and fixing with the light guide body. The locking blocks will deform and then fit tightly with the LED circuit board, forming a firm fixed connection. This design not only ensures the stability of the connection, but also allows a certain tolerance space during installation, reducing the installation difficulty.

[0018] As a further improvement of the above solution, the light guide body is also provided with notches near the cantilevers of each fastener, and the notches are arranged opposite to the locking blocks.

[0019] As a further improvement of the above solution, the light guide body extends along an arc shape, and lugs are provided at both ends of the light guide body. Corresponding end posts are provided on the base shell, and fasteners pass through the lugs to fix the light guide body on the end posts.

[0020] As a further improvement of the above solution, the distance between adjacent LED lamp beads ranges from 4 to 6 mm, and the width dimension of the partition groove is from 1.5 to 3 mm.

[0021] The beneficial effects of the utility model:

[0022] In the present utility model, the light guide main body and the LED circuit board are reasonably arranged on the base shell, so that the light emitted by the LED lamp beads is reflected and exported, being soft and not dazzling. At the same time, multiple light guide units are combined into the light guide main body, and the light guide main body buckles and fixes the LED circuit board through fasteners, making the connection between the light guide main body, the LED circuit board and the base shell firm and not easy to shake, improving the light guide stability of the LED light source. In addition, by arranging a plurality of light-shielding rib plates on the base shell, adjacent LED lamp beads are isolated from each other, effectively preventing the occurrence of light leakage and avoiding mutual interference between the LED lamp beads. Description of the Drawings

[0023] Figure 1 is a perspective view of the present utility model;

[0024] Figure 2 is a structural schematic diagram of the present utility model;

[0025] Figure 3 is an exploded schematic diagram of the present utility model;

[0026] Figure 4 is a perspective view of the light guide main body of the present utility model;

[0027] Figure 5 is a perspective view of the light guide main body of the present utility model from another angle;

[0028] Figure 6 is a perspective view of the light guide main body of the present utility model from another angle;

[0029] Figure 7 is a working principle diagram of the present utility model;

[0030] Reference Signs:

[0031] A1, indicating lamp;

[0032] 1, base shell; 11, light-shielding rib plate; 12, light-passing hole;

[0033] 2, light guide main body;

[0034] 21, light guide unit;

[0035] 211, light incident part; 211a, base; 211b, concave groove;

[0036] 212, light guide part; 2121, vertical light guide member; 2122, horizontal light guide member; 2123, first light guide rib plate; 2124, second light guide rib plate;

[0037] 213, light exit part;

[0038] 22, connecting part; 23, partition groove;

[0039] 3. LED circuit board; 31. LED lamp beads;

[0040] 4. Fastener; 41. Cantilever; 42. Locking block; 43. Notch;

[0041] 5. Lug;

[0042] 6. End post. Detailed implementation manner

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0044] As Figures 1-7 shown, an indicator light light guide structure suitable for an atmosphere lamp includes a base shell 1, and a light guide main body 2 and an LED circuit board 3 are provided on the base shell 1; in this embodiment, the light guide main body 2 extends along an arc shape, and lugs 5 are provided at both ends of the light guide main body 2, and corresponding end posts 6 are provided on the base shell 1, and a fastener passes through the lugs 5 to fix the light guide main body 2 on the end posts 6.

[0045] The corresponding design of the lugs 5 and the end posts 6 enables the light guide main body 2 to be accurately positioned during fixation, avoiding problems such as insecure fixation or loosening caused by misalignment, and improving the stability of the overall structure. Specifically, through holes can be provided on the lugs 5, threaded holes are configured on the end posts 6, and the fasteners are screws or bolts. By the cooperation of the fasteners and the threaded holes of the end posts 6, the light guide main body 2 is firmly fixed on the base shell 1.

[0046] The light guide main body 2 is fixedly connected to the base shell 1, and a plurality of fasteners 4 are provided at the bottom of the light guide main body 2, and the light guide main body 2 is fastened and fixed to the LED circuit board 3 through the fasteners 4. Specifically, the fasteners 4 are circumferentially distributed along the bottom of the light guide main body 2, and the fasteners 4 include cantilevers 41 extending in the up and down directions, and the ends of the cantilevers 41 protrude inward to form elastic locking blocks 42; the LED circuit board 3 acts on the locking blocks 42 from bottom to top, causing them to deform, and then being fastened and fixed to the light guide main body 2.

[0047] When the LED circuit board 3 acts upward, the locking block 42 will deform and then closely fit with the LED circuit board 3 to form a firm fixed connection. This design not only ensures the stability of the connection but also allows for a certain margin of error during installation, reducing the installation difficulty. At the same time, due to the elasticity of the locking block 42, when the LED circuit board 3 is installed in place, the locking block 42 will return to its original state to form a firm locking mechanism. This design effectively avoids problems such as loosening and falling off caused by vibration, impact, etc. during use, improving stability and reliability.

[0048] In this embodiment, the light guide body 2 is further provided with a notch 43 near the cantilever 41 of each fastener 4. The notch 43 penetrates the light guide body 2 in the vertical direction, and the notch 43 is arranged opposite to the locking block 42. After injection molding, the light guide body 2 needs to be smoothly demolded from the mold. By providing the notch 43 near the cantilever 41 of the fastener 4 on the light guide body 2, a larger space can be provided for demolding, effectively reducing the risk of damage during demolding.

[0049] The light guide body 2 includes a plurality of light guide units 21 arranged in parallel. Each light guide unit 21 is connected into one body through a connecting portion 22; specifically, the light guide body 2 can be made of acrylic resin, polycarbonate, epoxy resin or glass. There is a partition groove 23 between two adjacent light guide units 21. On the inner wall of the base shell 1, there is a light-shielding rib 11 corresponding to the partition groove 23; the light-shielding rib 11 is correspondingly inserted into the partition groove 23 to completely or partially block adjacent light guide units 21; on the one hand, the light-shielding rib 11 can play a role in blocking the light leakage interference between adjacent light guide units 21, and on the other hand, it can also strengthen the strength of the base shell 1. In this embodiment, the distance between adjacent LED beads 31 ranges from 4 to 6 mm, and the width dimension of the partition groove 23 is 1.5 to 3 mm; although the distance between the LED beads 31 is compact, the configuration of the partition groove 23 and the light-shielding rib 11 effectively isolates adjacent LED beads 31 from each other, preventing the occurrence of light leakage, and has a wide range of applications.

[0050] The upper end surface of the LED circuit board 3 is provided with a plurality of LED beads 31, and each LED bead 31 corresponds to a light guide unit 21 one by one; the light guide unit 21 includes a light incident portion 211 covering the LED bead 31, a light guide portion 212 for refracting light, and a light emitting portion 213 for emitting light; wherein, the light emitting portion 213 is not arranged directly opposite to the LED bead 31, so that the light emitted by the LED bead 31 is reflected and exported, being soft and not dazzling;

[0051] A plurality of light passing holes 12 are provided at the top of the base shell 1, and the light passing holes 12 are correspondingly arranged with the light emitting parts 213; the light emitted by the LED lamp beads 31 is introduced into the light guiding unit 21 from the light incident part 211, and after being refracted by the light guiding unit 21, it is emitted from the light passing holes 12.

[0052] In this embodiment, the light incident part 211 includes a base 211a, and a concave groove 211b is formed by recessing one side of the base 211a facing the LED lamp beads 31, and the concave groove 211b covers the corresponding LED lamp beads 31; the depth dimension of the concave groove 211b is equal to or greater than the thickness dimension of the LED lamp beads 31; by covering the corresponding LED lamp beads 31 with the concave groove 211b, it is ensured that the light emitted by the LED lamp beads 31 is captured and concentrated to the greatest extent, improving the capture rate of the light guiding unit 21 for the light flux and effectively reducing the light loss.

[0053] In this embodiment, the light guiding part 212 includes a vertical light guiding member 2121 and a horizontal light guiding member 2122. The vertical light guiding member 2121 is located on one side of the base 211a and is arranged in the vertical direction; the horizontal light guiding member 2122 is located above the vertical light guiding member 2121 and is arranged in the horizontal direction away from the LED lamp beads 31; the light emitting part 213 is arranged on the horizontal light guiding member 2122.

[0054] In this embodiment, a first light guiding rib plate 2123 is provided between the base 211a and the vertical light guiding member 2121, and a second light guiding rib plate 2124 is provided between the vertical light guiding member 2121 and the horizontal light guiding member 2122; wherein, the width dimension of each light guiding rib plate is adapted to the width dimension of the LED lamp beads 31; and the LED lamp beads 31, the first light guiding rib plate 2123, the second light guiding rib plate 2124 and the light emitting part 213 are in the same cross-section.

[0055] In this embodiment, the base 211a, the vertical light guiding member 2121, the horizontal light guiding member 2122, the first light guiding rib plate 2123, the second light guiding rib plate 2124 and the light emitting part 213 are integrally injection molded. By configuring the vertical light guiding member 2121 and the horizontal light guiding member 2122, and combining the design of the first light guiding rib plate 2123 and the second light guiding rib plate 2124, a multi-directional light guiding system is constructed in this embodiment. The vertical light guiding member 2121 is arranged in the vertical direction, receives the light from the LED lamp beads 31, and guides it upward. The horizontal light guiding member 2122 is located above the vertical light guiding member 2121 and is arranged in the horizontal direction away from the LED lamp beads 31, further dispersing the light horizontally to form a wider light guiding area, ensuring an efficient light guiding path during the light propagation and reducing the light loss.

[0056] Meanwhile, in cooperation with the first light guide rib plate 2123 and the second light guide rib plate 2124, on the one hand, the overall structural strength of the light guide unit 21 is improved; on the other hand, it also enables light to be repeatedly reflected inside the light guide unit 21, so that the light can be evenly distributed, forming a soft and uniform light guide effect.

[0057] In this embodiment, the shape of the light-emitting portion 213 is a rotating body with a narrow upper part and a wide lower part, and the upper end surface of the light-emitting portion 213 is flush with the upper edge of the light-transmitting hole 12. Specifically, the rotating body includes a cylinder and a frustum of a cone connected up and down, and the light-transmitting hole 12 is adapted to the shape of the rotating body. Since the light-emitting portion 213 is arranged in a structure with a narrow upper part and a wide lower part, the light is gradually dispersed by repeated refraction during the propagation process, reducing the irritation of strong light to the eyes, and is particularly suitable for application scenarios such as atmosphere lights.

[0058] Through the above solution of the present utility model, in specific applications: the light emitted by the LED lamp beads 31 is introduced into the light guide unit 21 from the light-incident portion 211, refracted by the light guide portion 212 and then delivered to the light-emitting portion 213, and emitted from the light-transmitting hole 12. The light-emitting portion 213 is not arranged directly opposite the LED lamp beads 31, so that the light emitted by the LED lamp beads 31 is reflected and exported, being soft and not dazzling; at the same time, a plurality of light guide units 21 are combined into a light guide body 2, and the light guide body 2 is fastened and fixed to the LED circuit board 3 through the fastener 4, making the connection between the light guide body 2, the LED circuit board 3 and the base shell 1 firm and not easy to shake, improving the light guide stability of the LED light source; in addition, by arranging a plurality of light-shielding rib plates 11 on the base shell 1, adjacent LED lamp beads 31 are isolated from each other, effectively preventing the occurrence of light crosstalk and avoiding mutual interference between the LED lamp beads 31.

[0059] According to the disclosure and teachings of the above specification, those skilled in the art to which the present utility model pertains can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims

1. An indicator light guide structure suitable for an atmosphere light, comprising a base shell, on which a light guide body and an LED circuit board are arranged; characterized in that: The light guide body is fixedly connected to the base shell, and a plurality of fasteners are provided at the bottom of the light guide body, and the light guide body is fastened and fixed with the LED circuit board through the fasteners; The light guide body comprises a plurality of light guide units arranged in parallel, each light guide unit being connected into one body through a connecting portion; a partition groove is provided between two adjacent light guide units, and a light shielding rib plate corresponding to the partition groove is provided on the inner wall of the base shell; the light shielding rib plate is correspondingly inserted into the partition groove to completely or partially shield adjacent light guide units; The upper end surface of the LED circuit board is provided with a plurality of LED lamp beads, and each LED lamp bead corresponds to a light guide unit one by one; the light guide unit comprises a light input portion covering the LED lamp bead, a light guide portion for refracting and guiding light, and a light output portion for outputting light; wherein the light output portion is not arranged directly opposite to the LED lamp bead; A plurality of light-through holes are provided on the top of the base shell, and the light-through holes are provided corresponding to the light-emitting parts; the light emitted by the LED lamp beads is introduced into the light-guiding unit from the light-incoming part, and is refracted by the light-guiding unit and then emitted from the light-through holes.

2. The indicator light guide structure suitable for an atmosphere light according to claim 1, characterized in that: The light incident portion includes a base, and a side of the base facing the LED lamp bead is recessed to form a concave groove, and the concave groove cover is arranged on the corresponding LED lamp bead; the depth dimension of the concave groove is equal to or greater than the thickness dimension of the LED lamp bead.

3. The indicator light guide structure suitable for an atmosphere light according to claim 2, characterized in that: The light guide part includes a vertical light guide and a horizontal light guide. The vertical light guide is located on one side of the base and is arranged in the vertical direction. The horizontal light guide is located on the upper part of the vertical light guide and is arranged in the horizontal direction away from the LED lamp beads. The light output part is arranged on the horizontal light guide.

4. The indicator light guide structure suitable for an atmosphere light according to claim 3, characterized in that: A first light guide rib plate is provided between the base and the vertical light guide member, and a second light guide rib plate is provided between the vertical light guide member and the horizontal light guide member; wherein the width dimension of each light guide rib plate is adapted to the width dimension of the LED lamp bead; and the LED lamp bead, the first light guide rib plate, the second light guide rib plate and the light output portion are on the same cross section.

5. The indicator light guide structure suitable for an atmosphere light according to claim 4, characterized in that: The shape of the light-emitting portion is a rotating body which is narrow at the top and wide at the bottom, and the upper end surface of the light-emitting portion is flush with the upper edge of the light-through hole.

6. The indicator light guide structure suitable for an atmosphere light according to claim 5, characterized in that: The base, the vertical light guide, the horizontal light guide, the first light guide rib plate, the second light guide rib plate and the light output portion are integrally injection molded.

7. The indicator light guide structure suitable for an atmosphere light according to claim 1, characterized in that: The fasteners are distributed along the circumference of the bottom of the light guide body, and the fasteners include cantilevers extending in the upward and downward directions, and the ends of the cantilevers protrude inward to form elastic stopping blocks; the LED circuit board acts on the stopping blocks from bottom to top to deform them, and then they are fastened and fixed with the light guide body.

8. The indicator light guide structure suitable for an atmosphere light according to claim 7, characterized in that: The light guide body is further provided with a notch at the cantilever close to each fastener, and the notch is arranged opposite to the stop block.

9. The indicator light guide structure suitable for an atmosphere light according to claim 1, characterized in that: The light guide body extends in an arc shape, and lugs are respectively arranged at two ends of the light guide body. The base shell is correspondingly provided with end posts, and fasteners pass through the lugs to fix the light guide body on the end posts.

10. The indicator light guide structure suitable for an atmosphere light according to claim 1, characterized in that: The spacing between adjacent LED lamp beads ranges from 4 to 6 mm, and the width of the partition groove ranges from 1.5 to 3 mm.

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